From 1e2cc4d04eb66f875f7ebcc4232d8ac4e7388254 Mon Sep 17 00:00:00 2001 From: Brooks Townsend Date: Wed, 7 Aug 2024 10:35:40 -0400 Subject: [PATCH] feat: add moonbit http component Signed-off-by: Brooks Townsend --- README.md | 12 + .../moonbit/http-hello-world/.gitignore | 1 + components/moonbit/http-hello-world/README.md | 92 + components/moonbit/http-hello-world/build.sh | 5 + .../moonbit/http-hello-world/build/.gitkeep | 0 .../http-hello-world/ffi/moon.pkg.json | 1 + .../moonbit/http-hello-world/ffi/top.mbt | 112 + .../moonbit/http-hello-world/gen/ffi.mbt | 23 + ...orts_wasi_http_incoming_handler_export.mbt | 8 + .../http-hello-world/gen/moon.pkg.json | 11 + .../gen/worlds_server_export.mbt | 2 + .../wasi/http/incomingHandler/README.md | 2 + .../wasi/http/incomingHandler/moon.pkg.json | 9 + .../exports/wasi/http/incomingHandler/top.mbt | 32 + .../wasi/clocks/monotonicClock/README.md | 8 + .../wasi/clocks/monotonicClock/moon.pkg.json | 9 + .../wasi/clocks/monotonicClock/top.mbt | 38 + .../imports/wasi/http/types/README.md | 3 + .../imports/wasi/http/types/moon.pkg.json | 17 + .../interface/imports/wasi/http/types/top.mbt | 2802 +++++++++++++++++ .../imports/wasi/io/error/moon.pkg.json | 1 + .../interface/imports/wasi/io/error/top.mbt | 42 + .../interface/imports/wasi/io/poll/README.md | 2 + .../imports/wasi/io/poll/moon.pkg.json | 1 + .../interface/imports/wasi/io/poll/top.mbt | 71 + .../imports/wasi/io/streams/README.md | 5 + .../imports/wasi/io/streams/moon.pkg.json | 13 + .../interface/imports/wasi/io/streams/top.mbt | 601 ++++ .../moonbit/http-hello-world/moon.mod.json | 1 + components/moonbit/http-hello-world/wadm.yaml | 31 + .../moonbit/http-hello-world/wasmcloud.toml | 11 + .../moonbit/http-hello-world/wit/deps.lock | 29 + .../moonbit/http-hello-world/wit/deps.toml | 1 + .../http-hello-world/wit/deps/cli/command.wit | 7 + .../wit/deps/cli/environment.wit | 18 + .../http-hello-world/wit/deps/cli/exit.wit | 4 + .../http-hello-world/wit/deps/cli/imports.wit | 20 + .../http-hello-world/wit/deps/cli/run.wit | 4 + .../http-hello-world/wit/deps/cli/stdio.wit | 17 + .../wit/deps/cli/terminal.wit | 49 + .../wit/deps/clocks/monotonic-clock.wit | 45 + .../wit/deps/clocks/wall-clock.wit | 42 + .../wit/deps/clocks/world.wit | 6 + .../wit/deps/filesystem/preopens.wit | 8 + .../wit/deps/filesystem/types.wit | 634 ++++ .../wit/deps/filesystem/world.wit | 6 + .../wit/deps/http/handler.wit | 43 + .../http-hello-world/wit/deps/http/proxy.wit | 32 + .../http-hello-world/wit/deps/http/types.wit | 570 ++++ .../http-hello-world/wit/deps/io/error.wit | 34 + .../http-hello-world/wit/deps/io/poll.wit | 41 + .../http-hello-world/wit/deps/io/streams.wit | 262 ++ .../http-hello-world/wit/deps/io/world.wit | 6 + .../wit/deps/random/insecure-seed.wit | 25 + .../wit/deps/random/insecure.wit | 22 + .../wit/deps/random/random.wit | 26 + .../wit/deps/random/world.wit | 7 + .../wit/deps/sockets/instance-network.wit | 9 + .../wit/deps/sockets/ip-name-lookup.wit | 51 + .../wit/deps/sockets/network.wit | 145 + .../wit/deps/sockets/tcp-create-socket.wit | 27 + .../http-hello-world/wit/deps/sockets/tcp.wit | 353 +++ .../wit/deps/sockets/udp-create-socket.wit | 27 + .../http-hello-world/wit/deps/sockets/udp.wit | 266 ++ .../wit/deps/sockets/world.wit | 11 + .../moonbit/http-hello-world/wit/world.wit | 5 + .../http-hello-world/worlds/server/import.mbt | 1 + .../worlds/server/moon.pkg.json | 1 + .../http-hello-world/worlds/server/top.mbt | 1 + 69 files changed, 6821 insertions(+) create mode 100644 components/moonbit/http-hello-world/.gitignore create mode 100644 components/moonbit/http-hello-world/README.md create mode 100755 components/moonbit/http-hello-world/build.sh create mode 100644 components/moonbit/http-hello-world/build/.gitkeep create mode 100644 components/moonbit/http-hello-world/ffi/moon.pkg.json create mode 100644 components/moonbit/http-hello-world/ffi/top.mbt create mode 100644 components/moonbit/http-hello-world/gen/ffi.mbt create mode 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components/moonbit/http-hello-world/interface/imports/wasi/io/streams/top.mbt create mode 100644 components/moonbit/http-hello-world/moon.mod.json create mode 100644 components/moonbit/http-hello-world/wadm.yaml create mode 100644 components/moonbit/http-hello-world/wasmcloud.toml create mode 100644 components/moonbit/http-hello-world/wit/deps.lock create mode 100644 components/moonbit/http-hello-world/wit/deps.toml create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/command.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/environment.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/exit.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/imports.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/run.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/stdio.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/cli/terminal.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/clocks/monotonic-clock.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/clocks/wall-clock.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/clocks/world.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/filesystem/preopens.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/filesystem/types.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/filesystem/world.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/http/handler.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/http/proxy.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/http/types.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/io/error.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/io/poll.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/io/streams.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/io/world.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/random/insecure-seed.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/random/insecure.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/random/random.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/random/world.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/instance-network.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/ip-name-lookup.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/network.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/tcp-create-socket.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/tcp.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/udp-create-socket.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/udp.wit create mode 100644 components/moonbit/http-hello-world/wit/deps/sockets/world.wit create mode 100644 components/moonbit/http-hello-world/wit/world.wit create mode 100644 components/moonbit/http-hello-world/worlds/server/import.mbt create mode 100644 components/moonbit/http-hello-world/worlds/server/moon.pkg.json create mode 100644 components/moonbit/http-hello-world/worlds/server/top.mbt diff --git a/README.md b/README.md index 9aef6a3..d7d807d 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,14 @@ # wasmCloud-contrib + Community contributions of providers, components, and demos + +## Components + +- [moonbit/http-hello-world](./components/moonbit/http-hello-world/) is an example component that implements the `wasi-http/incoming-handler@0.2.0` interface and is built with [Moonbit](https://www.moonbitlang.com/) + +## Secrets + +There are currently two implementations of [wasmCloud secrets backends](https://wasmcloud.com/docs/deployment/security/secrets#implementing-a-secrets-backend) available in this repository. + +- [secrets-kubernetes](./secrets/secrets-kubernetes/) for using secrets stored in Kubernetes in wasmCloud applications +- [secrets-vault](./secrets/secrets-vault/) for using secrets stored in Vault in wasmCloud applications diff --git a/components/moonbit/http-hello-world/.gitignore b/components/moonbit/http-hello-world/.gitignore new file mode 100644 index 0000000..2d349d4 --- /dev/null +++ b/components/moonbit/http-hello-world/.gitignore @@ -0,0 +1 @@ +build/*.wasm \ No newline at end of file diff --git a/components/moonbit/http-hello-world/README.md b/components/moonbit/http-hello-world/README.md new file mode 100644 index 0000000..7af00f7 --- /dev/null +++ b/components/moonbit/http-hello-world/README.md @@ -0,0 +1,92 @@ +# Moonbit http-bello-world + +This example was created following the [Developing Wasm component model in MoonBit with minimal output size](https://www.moonbitlang.com/blog/component-model) blog. + +## Prerequisites + +- [Rust toolchain](https://www.rust-lang.org/tools/install) to install prerequisites +- wit-deps + - `cargo install wit-deps-cli` +- wasm-tools + - `cargo install wasm-tools` +- Moonbit wit-bindgen fork + - `cargo install wit-bindgen-cli --git https://github.com/peter-jerry-ye/wit-bindgen/ --branch moonbit` +- [Moonbit CLI](https://www.moonbitlang.com/download/#moonbit-cli-tools) +- [wash CLI](https://wasmcloud.com/docs/installation) + +## Run in wasmCloud + +After the tutorial and running the Moonbit Wasm component in wasmtime, we created a `wasmcloud.toml` to encapsulate the build & adapt steps and a `wadm.yaml` for running the component in wasmCloud. + +The `wadm.yaml` was created using [wit2wadm](https://github.com/brooksmtownsend/wit2wadm). You can install the `wit2wadm` plugin using `wash plugin install oci://ghcr.io/brooksmtownsend/wit2wadm:0.2.0`. + +```bash +wash build +wash wit2wadm ./build/gen.wasm --name moonbit-http --description "HTTP hello world demo with a component written in Moonbit" > wadm.yaml +wash up -d +wash app deploy ./wadm.yaml +``` + +Then, once the application is in the `Deployed` status: + +```bash +> curl localhost:8000 +Hello, World% +``` + +## Size & Speed + +As promised, the Moonbit component is tiny! + +```bash +➜ ll build +Permissions Size User Date Modified Name +.rw-r--r-- 22k brooks 7 Aug 10:30 gen.wasm +``` + +Running 100 max instances of the moonbit component, we get impressive numbers for HTTP throughput. As Moonbit evolves, it will be interesting to see how viable the language is for creating performant components. + +```bash +➜ hey -z 20s -c 100 http://localhost:8000 + +Summary: + Total: 20.0071 secs + Slowest: 0.0401 secs + Fastest: 0.0009 secs + Average: 0.0048 secs + Requests/sec: 20901.9356 + + +Response time histogram: + 0.001 [1] | + 0.005 [238066] |■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ + 0.009 [176898] |■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ + 0.013 [2474] | + 0.017 [384] | + 0.021 [140] | + 0.024 [95] | + 0.028 [81] | + 0.032 [47] | + 0.036 [0] | + 0.040 [1] | + + +Latency distribution: + 10% in 0.0035 secs + 25% in 0.0040 secs + 50% in 0.0047 secs + 75% in 0.0054 secs + 90% in 0.0061 secs + 95% in 0.0067 secs + 99% in 0.0084 secs + +Details (average, fastest, slowest): + DNS+dialup: 0.0000 secs, 0.0009 secs, 0.0401 secs + DNS-lookup: 0.0000 secs, 0.0000 secs, 0.0017 secs + req write: 0.0000 secs, 0.0000 secs, 0.0009 secs + resp wait: 0.0046 secs, 0.0007 secs, 0.0400 secs + resp read: 0.0002 secs, 0.0000 secs, 0.0140 secs + +Status code distribution: + [200] 418187 responses +``` diff --git a/components/moonbit/http-hello-world/build.sh b/components/moonbit/http-hello-world/build.sh new file mode 100755 index 0000000..0380aba --- /dev/null +++ b/components/moonbit/http-hello-world/build.sh @@ -0,0 +1,5 @@ +#!/bin/sh + +moon build --target wasm +wasm-tools component embed wit target/wasm/release/build/gen/gen.wasm -o target/wasm/release/build/gen/gen.wasm --encoding utf16 +wasm-tools component new target/wasm/release/build/gen/gen.wasm -o target/wasm/release/build/gen/gen.wasm \ No newline at end of file diff --git a/components/moonbit/http-hello-world/build/.gitkeep b/components/moonbit/http-hello-world/build/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/components/moonbit/http-hello-world/ffi/moon.pkg.json b/components/moonbit/http-hello-world/ffi/moon.pkg.json new file mode 100644 index 0000000..9e26dfe --- /dev/null +++ b/components/moonbit/http-hello-world/ffi/moon.pkg.json @@ -0,0 +1 @@ +{} \ No newline at end of file diff --git a/components/moonbit/http-hello-world/ffi/top.mbt b/components/moonbit/http-hello-world/ffi/top.mbt new file mode 100644 index 0000000..d91f16b --- /dev/null +++ b/components/moonbit/http-hello-world/ffi/top.mbt @@ -0,0 +1,112 @@ + +pub extern "wasm" fn extend16(value : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.extend16_s) + +pub extern "wasm" fn extend8(value : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.extend8_s) + +pub extern "wasm" fn store8(offset : Int, value : Int) = + #|(func (param i32) (param i32) local.get 0 local.get 1 i32.store8) + +pub extern "wasm" fn load8_u(offset : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.load8_u) + +pub extern "wasm" fn load8(offset : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.load8_s) + +pub extern "wasm" fn store16(offset : Int, value : Int) = + #|(func (param i32) (param i32) local.get 0 local.get 1 i32.store16) + +pub extern "wasm" fn load16(offset : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.load16_s) + +pub extern "wasm" fn load16_u(offset : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.load16_u) + +pub extern "wasm" fn store32(offset : Int, value : Int) = + #|(func (param i32) (param i32) local.get 0 local.get 1 i32.store) + +pub extern "wasm" fn load32(offset : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 i32.load) + +pub extern "wasm" fn store64(offset : Int, value : Int64) = + #|(func (param i32) (param i64) local.get 0 local.get 1 i64.store) + +pub extern "wasm" fn load64(offset : Int) -> Int64 = + #|(func (param i32) (result i64) local.get 0 i64.load) + +pub extern "wasm" fn storef32(offset : Int, value : Float) = + #|(func (param i32) (param f32) local.get 0 local.get 1 f32.store) + +pub extern "wasm" fn loadf32(offset : Int) -> Float = + #|(func (param i32) (result f32) local.get 0 f32.load) + +pub extern "wasm" fn storef64(offset : Int, value : Double) = + #|(func (param i32) (param f64) local.get 0 local.get 1 f64.store) + +pub extern "wasm" fn loadf64(offset : Int) -> Double = + #|(func (param i32) (result f64) local.get 0 f64.load) + +pub extern "wasm" fn f32_to_i32(value : Float) -> Int = + #|(func (param f32) (result i32) local.get 0 f32.convert_i32_s) + +pub extern "wasm" fn i32_to_f32(value : Int) -> Float = + #|(func (param i32) (result f32) local.get 0 i32.trunc_f32_s) + +pub extern "wasm" fn f32_to_i64(value : Float) -> Int64 = + #|(func (param f32) (result i64) local.get 0 f32.convert_i64_s) + +pub extern "wasm" fn i64_to_f32(value : Int64) -> Float = + #|(func (param i64) (result f32) local.get 0 i64.trunc_f32_s) + +pub extern "wasm" fn f32_to_f64(value : Float) -> Double = + #|(func (param f32) (result f64) local.get 0 f64.promote_f32) + +pub extern "wasm" fn f64_to_f32(value : Double) -> Float = + #|(func (param f64) (result f32) local.get 0 f32.demote_f64) + +extern "wasm" fn malloc_inline(size : Int) -> Int = + #|(func (param i32) (result i32) local.get 0 call $moonbit.malloc) + +pub fn malloc(size : Int) -> Int { + let words = size / 4 + 1 + let address = malloc_inline(8 + words * 4) + store32(address, 1) + store32(address + 4, words.lsl(8).lor(246)) + store8(address + words * 4 + 7, 3 - size % 4) + address + 8 +} + +pub extern "wasm" fn free(position : Int) = + #|(func (param i32) local.get 0 i32.const 8 i32.sub call $moonbit.decref) + +pub fn copy(dest : Int, src : Int) -> Unit { + let src = src - 8 + let dest = dest - 8 + let src_len = load32(src + 4).land(0xFFFFFF) + let dest_len = load32(dest + 4).land(0xFFFFFF) + let min = if src_len < dest_len { src_len } else { dest_len } + copy_inline(dest, src, min) +} + +extern "wasm" fn copy_inline(dest : Int, src : Int, len : Int) = + #|(func (param i32) (param i32) (param i32) local.get 0 local.get 1 local.get 2 memory.copy) + +pub extern "wasm" fn str2ptr(str : String) -> Int = + #|(func (param i32) (result i32) local.get 0 call $moonbit.decref local.get 0 i32.const 8 i32.add) + +pub extern "wasm" fn ptr2str(ptr : Int) -> String = + #|(func (param i32) (result i32) local.get 0 i32.const 4 i32.sub i32.const 243 i32.store8 local.get 0 i32.const 8 i32.sub) + +pub extern "wasm" fn bytes2ptr(bytes : Bytes) -> Int = + #|(func (param i32) (result i32) local.get 0 call $moonbit.decref local.get 0 i32.const 8 i32.add) + +pub extern "wasm" fn ptr2bytes(ptr : Int) -> Bytes = + #|(func (param i32) (result i32) local.get 0 i32.const 8 i32.sub) + +pub trait Any {} +pub struct Cleanup { + address : Int + size : Int + align : Int +} diff --git a/components/moonbit/http-hello-world/gen/ffi.mbt b/components/moonbit/http-hello-world/gen/ffi.mbt new file mode 100644 index 0000000..1d00cb0 --- /dev/null +++ b/components/moonbit/http-hello-world/gen/ffi.mbt @@ -0,0 +1,23 @@ + +pub fn cabi_realloc( +src_offset : Int, +src_size : Int, +_dst_alignment : Int, +dst_size : Int +) -> Int { + // malloc + if src_offset == 0 && src_size == 0 { + return @ffi.malloc(dst_size) + } + // free + if dst_size <= 0 { + @ffi.free(src_offset) + return 0 + } + // realloc + let dst = @ffi.malloc(dst_size) + @ffi.copy(dst, src_offset) + @ffi.free(src_offset) + dst +} + diff --git a/components/moonbit/http-hello-world/gen/interface_exports_wasi_http_incoming_handler_export.mbt b/components/moonbit/http-hello-world/gen/interface_exports_wasi_http_incoming_handler_export.mbt new file mode 100644 index 0000000..c20cc74 --- /dev/null +++ b/components/moonbit/http-hello-world/gen/interface_exports_wasi_http_incoming_handler_export.mbt @@ -0,0 +1,8 @@ +// Generated by `wit-bindgen` 0.29.0. DO NOT EDIT! + +pub fn wasmExportHandle(p0 : Int, p1 : Int) -> Unit { + + let _ = @incomingHandler.handle(@types.IncomingRequest::IncomingRequest(p0), @types.ResponseOutparam::ResponseOutparam(p1)); + +} + diff --git a/components/moonbit/http-hello-world/gen/moon.pkg.json b/components/moonbit/http-hello-world/gen/moon.pkg.json new file mode 100644 index 0000000..ffc49dc --- /dev/null +++ b/components/moonbit/http-hello-world/gen/moon.pkg.json @@ -0,0 +1,11 @@ + +{ + "link": { + "wasm": { + "exports": ["cabi_realloc:cabi_realloc", "wasmExportHandle:wasi:http/incoming-handler@0.2.0#handle"], + "export-memory-name": "memory", + "heap-start-address": 0 + } + } + ,"import": [{ "path" : "wasmcloud/example/ffi", "alias" : "ffi" }, { "path" : "wasmcloud/example/interface/exports/wasi/http/incomingHandler", "alias" : "incomingHandler" }, { "path" : "wasmcloud/example/interface/imports/wasi/http/types", "alias" : "types" }] +} diff --git a/components/moonbit/http-hello-world/gen/worlds_server_export.mbt b/components/moonbit/http-hello-world/gen/worlds_server_export.mbt new file mode 100644 index 0000000..783b825 --- /dev/null +++ b/components/moonbit/http-hello-world/gen/worlds_server_export.mbt @@ -0,0 +1,2 @@ +// Generated by `wit-bindgen` 0.29.0. DO NOT EDIT! + diff --git a/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/README.md b/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/README.md new file mode 100644 index 0000000..5ec537c --- /dev/null +++ b/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/README.md @@ -0,0 +1,2 @@ +This interface defines a handler of incoming HTTP Requests. It should +be exported by components which can respond to HTTP Requests. \ No newline at end of file diff --git a/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/moon.pkg.json b/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/moon.pkg.json new file mode 100644 index 0000000..c42ba29 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/moon.pkg.json @@ -0,0 +1,9 @@ +{ + "import": [ + { + "path": "wasmcloud/example/interface/imports/wasi/http/types", + "alias": "types" + }, + "wasmcloud/example/interface/imports/wasi/io/streams" + ] +} diff --git a/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/top.mbt b/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/top.mbt new file mode 100644 index 0000000..227d196 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/exports/wasi/http/incomingHandler/top.mbt @@ -0,0 +1,32 @@ +// Generated by `wit-bindgen` 0.28.0. DO NOT EDIT! +/// This function is invoked with an incoming HTTP Request, and a resource +/// `response-outparam` which provides the capability to reply with an HTTP +/// Response. The response is sent by calling the `response-outparam.set` +/// method, which allows execution to continue after the response has been +/// sent. This enables both streaming to the response body, and performing other +/// work. +/// +/// The implementor of this function must write a response to the +/// `response-outparam` before returning, or else the caller will respond +/// with an error on its behalf. +pub fn handle( + request : @types.IncomingRequest, + response_out : @types.ResponseOutparam +) -> Unit { + let response = match request.path_with_query() { + None | Some("/") => make_response(b"Hello, World") + _ => make_response(b"Not Found", status_code=404) + } + |> Ok + response_out.set(response) +} + +fn make_response( + body : Bytes, + ~status_code : UInt = 200 +) -> @types.OutgoingResponse { + let response = @types.outgoing_response(@types.fields()) + response.body().unwrap().write().unwrap().blocking_write_and_flush(body).unwrap() + response.set_status_code(status_code).unwrap() + response +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/README.md b/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/README.md new file mode 100644 index 0000000..0870511 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/README.md @@ -0,0 +1,8 @@ +WASI Monotonic Clock is a clock API intended to let users measure elapsed +time. + +It is intended to be portable at least between Unix-family platforms and +Windows. + +A monotonic clock is a clock which has an unspecified initial value, and +successive reads of the clock will produce non-decreasing values. \ No newline at end of file diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/moon.pkg.json b/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/moon.pkg.json new file mode 100644 index 0000000..40f67ce --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/moon.pkg.json @@ -0,0 +1,9 @@ +{ + "import": [ + { "path": "wasmcloud/example/ffi", "alias": "ffi" }, + { + "path": "wasmcloud/example/interface/imports/wasi/io/poll", + "alias": "poll" + } + ] +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/top.mbt b/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/top.mbt new file mode 100644 index 0000000..bc5aeab --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/clocks/monotonicClock/top.mbt @@ -0,0 +1,38 @@ +// Generated by `wit-bindgen` 0.28.0. DO NOT EDIT! +fn wasmImportNow() -> Int64 = "wasi:clocks/monotonic-clock@0.2.0" "now" + +/// Read the current value of the clock. +/// +/// The clock is monotonic, therefore calling this function repeatedly will +/// produce a sequence of non-decreasing values. +pub fn now() -> UInt64 { + let result : Int64 = wasmImportNow() + return result.to_uint64() +} + +fn wasmImportResolution() -> Int64 = "wasi:clocks/monotonic-clock@0.2.0" "resolution" + +/// Query the resolution of the clock. Returns the duration of time +/// corresponding to a clock tick. +pub fn resolution() -> UInt64 { + let result : Int64 = wasmImportResolution() + return result.to_uint64() +} + +fn wasmImportSubscribeInstant(p0 : Int64) -> Int = "wasi:clocks/monotonic-clock@0.2.0" "subscribe-instant" + +/// Create a `pollable` which will resolve once the specified instant +/// has occurred. +pub fn subscribe_instant(when : UInt64) -> @poll.Pollable { + let result : Int = wasmImportSubscribeInstant(when.to_int64()) + return @poll.Pollable::Pollable(result) +} + +fn wasmImportSubscribeDuration(p0 : Int64) -> Int = "wasi:clocks/monotonic-clock@0.2.0" "subscribe-duration" + +/// Create a `pollable` that will resolve after the specified duration has +/// elapsed from the time this function is invoked. +pub fn subscribe_duration(when : UInt64) -> @poll.Pollable { + let result : Int = wasmImportSubscribeDuration(when.to_int64()) + return @poll.Pollable::Pollable(result) +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/http/types/README.md b/components/moonbit/http-hello-world/interface/imports/wasi/http/types/README.md new file mode 100644 index 0000000..c37c8e3 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/http/types/README.md @@ -0,0 +1,3 @@ +This interface defines all of the types and methods for implementing +HTTP Requests and Responses, both incoming and outgoing, as well as +their headers, trailers, and bodies. \ No newline at end of file diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/http/types/moon.pkg.json b/components/moonbit/http-hello-world/interface/imports/wasi/http/types/moon.pkg.json new file mode 100644 index 0000000..0b06e81 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/http/types/moon.pkg.json @@ -0,0 +1,17 @@ +{ + "import": [ + { "path": "wasmcloud/example/ffi", "alias": "ffi" }, + { + "path": "wasmcloud/example/interface/imports/wasi/io/error", + "alias": "error" + }, + { + "path": "wasmcloud/example/interface/imports/wasi/io/poll", + "alias": "poll" + }, + { + "path": "wasmcloud/example/interface/imports/wasi/io/streams", + "alias": "streams" + } + ] +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/http/types/top.mbt b/components/moonbit/http-hello-world/interface/imports/wasi/http/types/top.mbt new file mode 100644 index 0000000..4ac8156 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/http/types/top.mbt @@ -0,0 +1,2802 @@ +// Generated by `wit-bindgen` 0.28.0. DO NOT EDIT! +/// This type corresponds to HTTP standard Methods. +pub enum Method { + Get + Head + Post + Put + Delete + Connect + Options + Trace + Patch + Other(String) +} derive(Show, Eq) + +/// This type corresponds to HTTP standard Related Schemes. +pub enum Scheme { + Http + Https + Other(String) +} derive(Show, Eq) + +/// Defines the case payload type for `DNS-error` above: +pub struct DnsErrorPayload { + rcode : String? + info_code : UInt? +} derive(Show, Eq) + +/// Defines the case payload type for `TLS-alert-received` above: +pub struct TlsAlertReceivedPayload { + alert_id : Byte? + alert_message : String? +} derive(Show, Eq) + +/// Defines the case payload type for `HTTP-response-{header,trailer}-size` above: +pub struct FieldSizePayload { + field_name : String? + field_size : UInt? +} derive(Show, Eq) + +/// These cases are inspired by the IANA HTTP Proxy Error Types: +/// https://www.iana.org/assignments/http-proxy-status/http-proxy-status.xhtml#table-http-proxy-error-types +pub enum ErrorCode { + DnsTimeout + DnsError(DnsErrorPayload) + DestinationNotFound + DestinationUnavailable + DestinationIpProhibited + DestinationIpUnroutable + ConnectionRefused + ConnectionTerminated + ConnectionTimeout + ConnectionReadTimeout + ConnectionWriteTimeout + ConnectionLimitReached + TlsProtocolError + TlsCertificateError + TlsAlertReceived(TlsAlertReceivedPayload) + HttpRequestDenied + HttpRequestLengthRequired + HttpRequestBodySize(UInt64?) + HttpRequestMethodInvalid + HttpRequestUriInvalid + HttpRequestUriTooLong + HttpRequestHeaderSectionSize(UInt?) + HttpRequestHeaderSize(FieldSizePayload?) + HttpRequestTrailerSectionSize(UInt?) + HttpRequestTrailerSize(FieldSizePayload) + HttpResponseIncomplete + HttpResponseHeaderSectionSize(UInt?) + HttpResponseHeaderSize(FieldSizePayload) + HttpResponseBodySize(UInt64?) + HttpResponseTrailerSectionSize(UInt?) + HttpResponseTrailerSize(FieldSizePayload) + HttpResponseTransferCoding(String?) + HttpResponseContentCoding(String?) + HttpResponseTimeout + HttpUpgradeFailed + HttpProtocolError + LoopDetected + ConfigurationError + InternalError(String?) +} derive(Show, Eq) + +/// This type enumerates the different kinds of errors that may occur when +/// setting or appending to a `fields` resource. +pub enum HeaderError { + InvalidSyntax + Forbidden + Immutable +} derive(Show, Eq) + +/// This following block defines the `fields` resource which corresponds to +/// HTTP standard Fields. Fields are a common representation used for both +/// Headers and Trailers. +/// +/// A `fields` may be mutable or immutable. A `fields` created using the +/// constructor, `from-list`, or `clone` will be mutable, but a `fields` +/// resource given by other means (including, but not limited to, +/// `incoming-request.headers`, `outgoing-request.headers`) might be be +/// immutable. In an immutable fields, the `set`, `append`, and `delete` +/// operations will fail with `header-error.immutable`. +pub type Fields Int derive(Show, Eq) + +fn wasmImportResourceDropFields(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]fields" + +pub fn Fields::drop(self : Fields) -> Unit { + wasmImportResourceDropFields(self.0) +} + +/// Represents an incoming HTTP Request. +pub type IncomingRequest Int derive(Show, Eq) + +fn wasmImportResourceDropIncomingRequest(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]incoming-request" + +pub fn IncomingRequest::drop(self : IncomingRequest) -> Unit { + wasmImportResourceDropIncomingRequest(self.0) +} + +/// Represents an outgoing HTTP Request. +pub type OutgoingRequest Int derive(Show, Eq) + +fn wasmImportResourceDropOutgoingRequest(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]outgoing-request" + +pub fn OutgoingRequest::drop(self : OutgoingRequest) -> Unit { + wasmImportResourceDropOutgoingRequest(self.0) +} + +/// Parameters for making an HTTP Request. Each of these parameters is +/// currently an optional timeout applicable to the transport layer of the +/// HTTP protocol. +/// +/// These timeouts are separate from any the user may use to bound a +/// blocking call to `wasi:io/poll.poll`. +pub type RequestOptions Int derive(Show, Eq) + +fn wasmImportResourceDropRequestOptions(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]request-options" + +pub fn RequestOptions::drop(self : RequestOptions) -> Unit { + wasmImportResourceDropRequestOptions(self.0) +} + +/// Represents the ability to send an HTTP Response. +/// +/// This resource is used by the `wasi:http/incoming-handler` interface to +/// allow a Response to be sent corresponding to the Request provided as the +/// other argument to `incoming-handler.handle`. +pub type ResponseOutparam Int derive(Show, Eq) + +fn wasmImportResourceDropResponseOutparam(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]response-outparam" + +pub fn ResponseOutparam::drop(self : ResponseOutparam) -> Unit { + wasmImportResourceDropResponseOutparam(self.0) +} + +/// Represents an incoming HTTP Response. +pub type IncomingResponse Int derive(Show, Eq) + +fn wasmImportResourceDropIncomingResponse(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]incoming-response" + +pub fn IncomingResponse::drop(self : IncomingResponse) -> Unit { + wasmImportResourceDropIncomingResponse(self.0) +} + +/// Represents an incoming HTTP Request or Response's Body. +/// +/// A body has both its contents - a stream of bytes - and a (possibly +/// empty) set of trailers, indicating that the full contents of the +/// body have been received. This resource represents the contents as +/// an `input-stream` and the delivery of trailers as a `future-trailers`, +/// and ensures that the user of this interface may only be consuming either +/// the body contents or waiting on trailers at any given time. +pub type IncomingBody Int derive(Show, Eq) + +fn wasmImportResourceDropIncomingBody(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]incoming-body" + +pub fn IncomingBody::drop(self : IncomingBody) -> Unit { + wasmImportResourceDropIncomingBody(self.0) +} + +/// Represents a future which may eventually return trailers, or an error. +/// +/// In the case that the incoming HTTP Request or Response did not have any +/// trailers, this future will resolve to the empty set of trailers once the +/// complete Request or Response body has been received. +pub type FutureTrailers Int derive(Show, Eq) + +fn wasmImportResourceDropFutureTrailers(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]future-trailers" + +pub fn FutureTrailers::drop(self : FutureTrailers) -> Unit { + wasmImportResourceDropFutureTrailers(self.0) +} + +/// Represents an outgoing HTTP Response. +pub type OutgoingResponse Int derive(Show, Eq) + +fn wasmImportResourceDropOutgoingResponse(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]outgoing-response" + +pub fn OutgoingResponse::drop(self : OutgoingResponse) -> Unit { + wasmImportResourceDropOutgoingResponse(self.0) +} + +/// Represents an outgoing HTTP Request or Response's Body. +/// +/// A body has both its contents - a stream of bytes - and a (possibly +/// empty) set of trailers, inducating the full contents of the body +/// have been sent. This resource represents the contents as an +/// `output-stream` child resource, and the completion of the body (with +/// optional trailers) with a static function that consumes the +/// `outgoing-body` resource, and ensures that the user of this interface +/// may not write to the body contents after the body has been finished. +/// +/// If the user code drops this resource, as opposed to calling the static +/// method `finish`, the implementation should treat the body as incomplete, +/// and that an error has occurred. The implementation should propagate this +/// error to the HTTP protocol by whatever means it has available, +/// including: corrupting the body on the wire, aborting the associated +/// Request, or sending a late status code for the Response. +pub type OutgoingBody Int derive(Show, Eq) + +fn wasmImportResourceDropOutgoingBody(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]outgoing-body" + +pub fn OutgoingBody::drop(self : OutgoingBody) -> Unit { + wasmImportResourceDropOutgoingBody(self.0) +} + +/// Represents a future which may eventually return an incoming HTTP +/// Response, or an error. +/// +/// This resource is returned by the `wasi:http/outgoing-handler` interface to +/// provide the HTTP Response corresponding to the sent Request. +pub type FutureIncomingResponse Int derive(Show, Eq) + +fn wasmImportResourceDropFutureIncomingResponse(resource : Int) = "wasi:http/types@0.2.0" "[resource-drop]future-incoming-response" + +pub fn FutureIncomingResponse::drop(self : FutureIncomingResponse) -> Unit { + wasmImportResourceDropFutureIncomingResponse(self.0) +} + +fn wasmImportHttpErrorCode(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "http-error-code" + +/// Attempts to extract a http-related `error` from the wasi:io `error` +/// provided. +/// +/// Stream operations which return +/// `wasi:io/stream/stream-error::last-operation-failed` have a payload of +/// type `wasi:io/error/error` with more information about the operation +/// that failed. This payload can be passed through to this function to see +/// if there's http-related information about the error to return. +/// +/// Note that this function is fallible because not all io-errors are +/// http-related errors. +pub fn http_error_code(err : @error.Error_) -> ErrorCode? { + let return_area = @ffi.malloc(40) + wasmImportHttpErrorCode(err.0, return_area) + let lifted198 : ErrorCode? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let lifted197 = match @ffi.load8_u(return_area + 8) { + 0 => ErrorCode::DnsTimeout + 1 => { + let lifted : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result) + } + _ => panic() + } + let lifted14 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => + Option::Some( + @ffi.load16_u(return_area + 30).land(0xFFFF).to_uint(), + ) + _ => panic() + } + ErrorCode::DnsError( + DnsErrorPayload::{ rcode: lifted, info_code: lifted14 }, + ) + } + 2 => ErrorCode::DestinationNotFound + 3 => ErrorCode::DestinationUnavailable + 4 => ErrorCode::DestinationIpProhibited + 5 => ErrorCode::DestinationIpUnroutable + 6 => ErrorCode::ConnectionRefused + 7 => ErrorCode::ConnectionTerminated + 8 => ErrorCode::ConnectionTimeout + 9 => ErrorCode::ConnectionReadTimeout + 10 => ErrorCode::ConnectionWriteTimeout + 11 => ErrorCode::ConnectionLimitReached + 12 => ErrorCode::TlsProtocolError + 13 => ErrorCode::TlsCertificateError + 14 => { + let lifted45 : Byte? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load8_u(return_area + 17).to_byte()) + _ => panic() + } + let lifted51 : String? = match @ffi.load8_u(return_area + 20) { + 0 => Option::None + 1 => { + let result50 = @ffi.ptr2str(@ffi.load32(return_area + 24)) + Option::Some(result50) + } + _ => panic() + } + ErrorCode::TlsAlertReceived( + TlsAlertReceivedPayload::{ + alert_id: lifted45, + alert_message: lifted51, + }, + ) + } + 15 => ErrorCode::HttpRequestDenied + 16 => ErrorCode::HttpRequestLengthRequired + 17 => { + let lifted62 : UInt64? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 24).to_uint64()) + _ => panic() + } + ErrorCode::HttpRequestBodySize(lifted62) + } + 18 => ErrorCode::HttpRequestMethodInvalid + 19 => ErrorCode::HttpRequestUriInvalid + 20 => ErrorCode::HttpRequestUriTooLong + 21 => { + let lifted75 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestHeaderSectionSize(lifted75) + } + 22 => { + let lifted93 : FieldSizePayload? = match + @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let lifted87 : String? = match @ffi.load8_u(return_area + 20) { + 0 => Option::None + 1 => { + let result86 = @ffi.ptr2str(@ffi.load32(return_area + 24)) + Option::Some(result86) + } + _ => panic() + } + let lifted92 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + Option::Some( + FieldSizePayload::{ field_name: lifted87, field_size: lifted92 }, + ) + } + _ => panic() + } + ErrorCode::HttpRequestHeaderSize(lifted93) + } + 23 => { + let lifted100 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSectionSize(lifted100) + } + 24 => { + let lifted108 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result107 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result107) + } + _ => panic() + } + let lifted113 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 32).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSize( + FieldSizePayload::{ field_name: lifted108, field_size: lifted113 }, + ) + } + 25 => ErrorCode::HttpResponseIncomplete + 26 => { + let lifted122 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSectionSize(lifted122) + } + 27 => { + let lifted130 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result129 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result129) + } + _ => panic() + } + let lifted135 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 32).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSize( + FieldSizePayload::{ field_name: lifted130, field_size: lifted135 }, + ) + } + 28 => { + let lifted142 : UInt64? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 24).to_uint64()) + _ => panic() + } + ErrorCode::HttpResponseBodySize(lifted142) + } + 29 => { + let lifted149 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSectionSize(lifted149) + } + 30 => { + let lifted157 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result156 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result156) + } + _ => panic() + } + let lifted162 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 32).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSize( + FieldSizePayload::{ field_name: lifted157, field_size: lifted162 }, + ) + } + 31 => { + let lifted170 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result169 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result169) + } + _ => panic() + } + ErrorCode::HttpResponseTransferCoding(lifted170) + } + 32 => { + let lifted178 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result177 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result177) + } + _ => panic() + } + ErrorCode::HttpResponseContentCoding(lifted178) + } + 33 => ErrorCode::HttpResponseTimeout + 34 => ErrorCode::HttpUpgradeFailed + 35 => ErrorCode::HttpProtocolError + 36 => ErrorCode::LoopDetected + 37 => ErrorCode::ConfigurationError + 38 => { + let lifted196 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result195 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result195) + } + _ => panic() + } + ErrorCode::InternalError(lifted196) + } + _ => panic() + } + Option::Some(lifted197) + } + _ => panic() + } + @ffi.free(return_area) + return lifted198 +} + +fn wasmImportConstructorFields() -> Int = "wasi:http/types@0.2.0" "[constructor]fields" + +/// Construct an empty HTTP Fields. +/// +/// The resulting `fields` is mutable. +pub fn Fields::fields() -> Fields { + let result : Int = wasmImportConstructorFields() + return Fields::Fields(result) +} + +fn wasmImportStaticFieldsFromList(p0 : Int, p1 : Int, p2 : Int) = "wasi:http/types@0.2.0" "[static]fields.from-list" + +/// Construct an HTTP Fields. +/// +/// The resulting `fields` is mutable. +/// +/// The list represents each key-value pair in the Fields. Keys +/// which have multiple values are represented by multiple entries in this +/// list with the same key. +/// +/// The tuple is a pair of the field key, represented as a string, and +/// Value, represented as a list of bytes. +/// +/// An error result will be returned if any `field-key` or `field-value` is +/// syntactically invalid, or if a field is forbidden. +pub fn Fields::from_list( + entries : Array[(String, Bytes)] +) -> Result[Fields, HeaderError] { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let address = @ffi.malloc(entries.length() * 16) + for index = 0; index < entries.length(); index = index + 1 { + let element : (String, Bytes) = entries[index] + let base = address + index * 16 + @ffi.store32(base + 4, element.0.iter().count()) + @ffi.store32(base + 0, @ffi.str2ptr(element.0)) + @ffi.store32(base + 12, element.1.length()) + @ffi.store32(base + 8, @ffi.bytes2ptr(element.1)) + ignoreList.push(element.0) + ignoreList.push(element.1) + } + let return_area = @ffi.malloc(8) + wasmImportStaticFieldsFromList(address, entries.length(), return_area) + let lifted10 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(Fields::Fields(@ffi.load32(return_area + 4))) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => HeaderError::InvalidSyntax + 1 => HeaderError::Forbidden + 2 => HeaderError::Immutable + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(address) + @ffi.free(return_area) + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) + return lifted10 +} + +fn wasmImportMethodFieldsGet(p0 : Int, p1 : Int, p2 : Int, p3 : Int) = "wasi:http/types@0.2.0" "[method]fields.get" + +/// Get all of the values corresponding to a key. If the key is not present +/// in this `fields` or is syntactically invalid, an empty list is returned. +/// However, if the key is present but empty, this is represented by a list +/// with one or more empty field-values present. +pub fn Fields::get(self : Fields, name : String) -> Array[Bytes] { + let return_area = @ffi.malloc(8) + wasmImportMethodFieldsGet( + self.0, + @ffi.str2ptr(name), + name.iter().count(), + return_area, + ) + let array : Array[Bytes] = [] + for index = 0; index < @ffi.load32(return_area + 4); index = index + 1 { + let base = @ffi.load32(return_area + 0) + index * 8 + let result = @ffi.ptr2bytes(@ffi.load32(base + 0)) + array.push(result) + } + @ffi.free(@ffi.load32(return_area + 0)) + ignore(name) + @ffi.free(return_area) + return array +} + +fn wasmImportMethodFieldsHas(p0 : Int, p1 : Int, p2 : Int) -> Int = "wasi:http/types@0.2.0" "[method]fields.has" + +/// Returns `true` when the key is present in this `fields`. If the key is +/// syntactically invalid, `false` is returned. +pub fn Fields::has(self : Fields, name : String) -> Bool { + let result : Int = wasmImportMethodFieldsHas( + self.0, + @ffi.str2ptr(name), + name.iter().count(), + ) + ignore(name) + return result != 0 +} + +fn wasmImportMethodFieldsSet( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int, + p4 : Int, + p5 : Int +) = "wasi:http/types@0.2.0" "[method]fields.set" + +/// Set all of the values for a key. Clears any existing values for that +/// key, if they have been set. +/// +/// Fails with `header-error.immutable` if the `fields` are immutable. +/// +/// Fails with `header-error.invalid-syntax` if the `field-key` or any of +/// the `field-value`s are syntactically invalid. +pub fn Fields::set( + self : Fields, + name : String, + value : Array[Bytes] +) -> Result[Unit, HeaderError] { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let address = @ffi.malloc(value.length() * 8) + for index = 0; index < value.length(); index = index + 1 { + let element : Bytes = value[index] + let base = address + index * 8 + @ffi.store32(base + 4, element.length()) + @ffi.store32(base + 0, @ffi.bytes2ptr(element)) + ignoreList.push(element) + } + let return_area = @ffi.malloc(2) + wasmImportMethodFieldsSet( + self.0, + @ffi.str2ptr(name), + name.iter().count(), + address, + value.length(), + return_area, + ) + let lifted10 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 1) { + 0 => HeaderError::InvalidSyntax + 1 => HeaderError::Forbidden + 2 => HeaderError::Immutable + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + ignore(name) + @ffi.free(address) + @ffi.free(return_area) + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) + return lifted10 +} + +fn wasmImportMethodFieldsDelete(p0 : Int, p1 : Int, p2 : Int, p3 : Int) = "wasi:http/types@0.2.0" "[method]fields.delete" + +/// Delete all values for a key. Does nothing if no values for the key +/// exist. +/// +/// Fails with `header-error.immutable` if the `fields` are immutable. +/// +/// Fails with `header-error.invalid-syntax` if the `field-key` is +/// syntactically invalid. +pub fn Fields::delete( + self : Fields, + name : String +) -> Result[Unit, HeaderError] { + let return_area = @ffi.malloc(2) + wasmImportMethodFieldsDelete( + self.0, + @ffi.str2ptr(name), + name.iter().count(), + return_area, + ) + let lifted8 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 1) { + 0 => HeaderError::InvalidSyntax + 1 => HeaderError::Forbidden + 2 => HeaderError::Immutable + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + ignore(name) + @ffi.free(return_area) + return lifted8 +} + +fn wasmImportMethodFieldsAppend( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int, + p4 : Int, + p5 : Int +) = "wasi:http/types@0.2.0" "[method]fields.append" + +/// Append a value for a key. Does not change or delete any existing +/// values for that key. +/// +/// Fails with `header-error.immutable` if the `fields` are immutable. +/// +/// Fails with `header-error.invalid-syntax` if the `field-key` or +/// `field-value` are syntactically invalid. +pub fn Fields::append( + self : Fields, + name : String, + value : Bytes +) -> Result[Unit, HeaderError] { + let return_area = @ffi.malloc(2) + wasmImportMethodFieldsAppend( + self.0, + @ffi.str2ptr(name), + name.iter().count(), + @ffi.bytes2ptr(value), + value.length(), + return_area, + ) + let lifted8 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 1) { + 0 => HeaderError::InvalidSyntax + 1 => HeaderError::Forbidden + 2 => HeaderError::Immutable + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + ignore(name) + ignore(value) + @ffi.free(return_area) + return lifted8 +} + +fn wasmImportMethodFieldsEntries(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]fields.entries" + +/// Retrieve the full set of keys and values in the Fields. Like the +/// constructor, the list represents each key-value pair. +/// +/// The outer list represents each key-value pair in the Fields. Keys +/// which have multiple values are represented by multiple entries in this +/// list with the same key. +pub fn Fields::entries(self : Fields) -> Array[(String, Bytes)] { + let return_area = @ffi.malloc(8) + wasmImportMethodFieldsEntries(self.0, return_area) + let array : Array[(String, Bytes)] = [] + for index = 0; index < @ffi.load32(return_area + 4); index = index + 1 { + let base = @ffi.load32(return_area + 0) + index * 16 + let result = @ffi.ptr2str(@ffi.load32(base + 0)) + let result0 = @ffi.ptr2bytes(@ffi.load32(base + 8)) + array.push((result, result0)) + } + @ffi.free(@ffi.load32(return_area + 0)) + @ffi.free(return_area) + return array +} + +fn wasmImportMethodFieldsClone(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]fields.clone" + +/// Make a deep copy of the Fields. Equivalent in behavior to calling the +/// `fields` constructor on the return value of `entries`. The resulting +/// `fields` is mutable. +pub fn Fields::clone(self : Fields) -> Fields { + let result : Int = wasmImportMethodFieldsClone(self.0) + return Fields::Fields(result) +} + +fn wasmImportMethodIncomingRequestMethod(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-request.method" + +/// Returns the method of the incoming request. +pub fn IncomingRequest::method(self : IncomingRequest) -> Method { + let return_area = @ffi.malloc(12) + wasmImportMethodIncomingRequestMethod(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => Method::Get + 1 => Method::Head + 2 => Method::Post + 3 => Method::Put + 4 => Method::Delete + 5 => Method::Connect + 6 => Method::Options + 7 => Method::Trace + 8 => Method::Patch + 9 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 4)) + Method::Other(result) + } + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodIncomingRequestPathWithQuery(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-request.path-with-query" + +/// Returns the path with query parameters from the request, as a string. +pub fn IncomingRequest::path_with_query(self : IncomingRequest) -> String? { + let return_area = @ffi.malloc(12) + wasmImportMethodIncomingRequestPathWithQuery(self.0, return_area) + let lifted : String? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 4)) + Option::Some(result) + } + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodIncomingRequestScheme(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-request.scheme" + +/// Returns the protocol scheme from the request. +pub fn IncomingRequest::scheme(self : IncomingRequest) -> Scheme? { + let return_area = @ffi.malloc(16) + wasmImportMethodIncomingRequestScheme(self.0, return_area) + let lifted8 : Scheme? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => Scheme::Http + 1 => Scheme::Https + 2 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 8)) + Scheme::Other(result) + } + _ => panic() + } + Option::Some(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted8 +} + +fn wasmImportMethodIncomingRequestAuthority(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-request.authority" + +/// Returns the authority of the Request's target URI, if present. +pub fn IncomingRequest::authority(self : IncomingRequest) -> String? { + let return_area = @ffi.malloc(12) + wasmImportMethodIncomingRequestAuthority(self.0, return_area) + let lifted : String? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 4)) + Option::Some(result) + } + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodIncomingRequestHeaders(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]incoming-request.headers" + +/// Get the `headers` associated with the request. +/// +/// The returned `headers` resource is immutable: `set`, `append`, and +/// `delete` operations will fail with `header-error.immutable`. +/// +/// The `headers` returned are a child resource: it must be dropped before +/// the parent `incoming-request` is dropped. Dropping this +/// `incoming-request` before all children are dropped will trap. +pub fn IncomingRequest::headers(self : IncomingRequest) -> Fields { + let result : Int = wasmImportMethodIncomingRequestHeaders(self.0) + return Fields::Fields(result) +} + +fn wasmImportMethodIncomingRequestConsume(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-request.consume" + +/// Gives the `incoming-body` associated with this request. Will only +/// return success at most once, and subsequent calls will return error. +pub fn IncomingRequest::consume( + self : IncomingRequest +) -> Result[IncomingBody, Unit] { + let return_area = @ffi.malloc(8) + wasmImportMethodIncomingRequestConsume(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(IncomingBody::IncomingBody(@ffi.load32(return_area + 4))) + 1 => Result::Err(()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportConstructorOutgoingRequest(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[constructor]outgoing-request" + +/// Construct a new `outgoing-request` with a default `method` of `GET`, and +/// `none` values for `path-with-query`, `scheme`, and `authority`. +/// +/// * `headers` is the HTTP Headers for the Request. +/// +/// It is possible to construct, or manipulate with the accessor functions +/// below, an `outgoing-request` with an invalid combination of `scheme` +/// and `authority`, or `headers` which are not permitted to be sent. +/// It is the obligation of the `outgoing-handler.handle` implementation +/// to reject invalid constructions of `outgoing-request`. +pub fn OutgoingRequest::outgoing_request(headers : Fields) -> OutgoingRequest { + let result : Int = wasmImportConstructorOutgoingRequest(headers.0) + return OutgoingRequest::OutgoingRequest(result) +} + +fn wasmImportMethodOutgoingRequestBody(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-request.body" + +/// Returns the resource corresponding to the outgoing Body for this +/// Request. +/// +/// Returns success on the first call: the `outgoing-body` resource for +/// this `outgoing-request` can be retrieved at most once. Subsequent +/// calls will return error. +pub fn OutgoingRequest::body( + self : OutgoingRequest +) -> Result[OutgoingBody, Unit] { + let return_area = @ffi.malloc(8) + wasmImportMethodOutgoingRequestBody(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(OutgoingBody::OutgoingBody(@ffi.load32(return_area + 4))) + 1 => Result::Err(()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodOutgoingRequestMethod(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-request.method" + +/// Get the Method for the Request. +pub fn OutgoingRequest::method(self : OutgoingRequest) -> Method { + let return_area = @ffi.malloc(12) + wasmImportMethodOutgoingRequestMethod(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => Method::Get + 1 => Method::Head + 2 => Method::Post + 3 => Method::Put + 4 => Method::Delete + 5 => Method::Connect + 6 => Method::Options + 7 => Method::Trace + 8 => Method::Patch + 9 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 4)) + Method::Other(result) + } + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodOutgoingRequestSetMethod( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int +) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-request.set-method" + +/// Set the Method for the Request. Fails if the string present in a +/// `method.other` argument is not a syntactically valid method. +pub fn OutgoingRequest::set_method( + self : OutgoingRequest, + method : Method +) -> Result[Unit, Unit] { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let (lowered, lowered27, lowered28) = match method { + Get => (0, 0, 0) + Head => (1, 0, 0) + Post => (2, 0, 0) + Put => (3, 0, 0) + Delete => (4, 0, 0) + Connect => (5, 0, 0) + Options => (6, 0, 0) + Trace => (7, 0, 0) + Patch => (8, 0, 0) + Other(payload26) => { + ignoreList.push(payload26) + (9, @ffi.str2ptr(payload26), payload26.iter().count()) + } + _ => panic() + } + let result : Int = wasmImportMethodOutgoingRequestSetMethod( + self.0, + lowered, + lowered27, + lowered28, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) + return lifted +} + +fn wasmImportMethodOutgoingRequestPathWithQuery(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-request.path-with-query" + +/// Get the combination of the HTTP Path and Query for the Request. +/// When `none`, this represents an empty Path and empty Query. +pub fn OutgoingRequest::path_with_query(self : OutgoingRequest) -> String? { + let return_area = @ffi.malloc(12) + wasmImportMethodOutgoingRequestPathWithQuery(self.0, return_area) + let lifted : String? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 4)) + Option::Some(result) + } + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodOutgoingRequestSetPathWithQuery( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int +) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-request.set-path-with-query" + +/// Set the combination of the HTTP Path and Query for the Request. +/// When `none`, this represents an empty Path and empty Query. Fails is the +/// string given is not a syntactically valid path and query uri component. +pub fn OutgoingRequest::set_path_with_query( + self : OutgoingRequest, + path_with_query : String? +) -> Result[Unit, Unit] { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let (lowered, lowered3, lowered4) = match path_with_query { + None => (0, 0, 0) + Some(payload2) => { + ignoreList.push(payload2) + (1, @ffi.str2ptr(payload2), payload2.iter().count()) + } + } + let result : Int = wasmImportMethodOutgoingRequestSetPathWithQuery( + self.0, + lowered, + lowered3, + lowered4, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) + return lifted +} + +fn wasmImportMethodOutgoingRequestScheme(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-request.scheme" + +/// Get the HTTP Related Scheme for the Request. When `none`, the +/// implementation may choose an appropriate default scheme. +pub fn OutgoingRequest::scheme(self : OutgoingRequest) -> Scheme? { + let return_area = @ffi.malloc(16) + wasmImportMethodOutgoingRequestScheme(self.0, return_area) + let lifted8 : Scheme? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => Scheme::Http + 1 => Scheme::Https + 2 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 8)) + Scheme::Other(result) + } + _ => panic() + } + Option::Some(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted8 +} + +fn wasmImportMethodOutgoingRequestSetScheme( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int, + p4 : Int +) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-request.set-scheme" + +/// Set the HTTP Related Scheme for the Request. When `none`, the +/// implementation may choose an appropriate default scheme. Fails if the +/// string given is not a syntactically valid uri scheme. +pub fn OutgoingRequest::set_scheme( + self : OutgoingRequest, + scheme : Scheme? +) -> Result[Unit, Unit] { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let (lowered14, lowered15, lowered16, lowered17) = match scheme { + None => (0, 0, 0, 0) + Some(payload2) => { + let (lowered, lowered12, lowered13) = match payload2 { + Http => (0, 0, 0) + Https => (1, 0, 0) + Other(payload11) => { + ignoreList.push(payload11) + (2, @ffi.str2ptr(payload11), payload11.iter().count()) + } + _ => panic() + } + (1, lowered, lowered12, lowered13) + } + } + let result : Int = wasmImportMethodOutgoingRequestSetScheme( + self.0, + lowered14, + lowered15, + lowered16, + lowered17, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) + return lifted +} + +fn wasmImportMethodOutgoingRequestAuthority(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-request.authority" + +/// Get the authority of the Request's target URI. A value of `none` may be used +/// with Related Schemes which do not require an authority. The HTTP and +/// HTTPS schemes always require an authority. +pub fn OutgoingRequest::authority(self : OutgoingRequest) -> String? { + let return_area = @ffi.malloc(12) + wasmImportMethodOutgoingRequestAuthority(self.0, return_area) + let lifted : String? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 4)) + Option::Some(result) + } + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodOutgoingRequestSetAuthority( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int +) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-request.set-authority" + +/// Set the authority of the Request's target URI. A value of `none` may be used +/// with Related Schemes which do not require an authority. The HTTP and +/// HTTPS schemes always require an authority. Fails if the string given is +/// not a syntactically valid URI authority. +pub fn OutgoingRequest::set_authority( + self : OutgoingRequest, + authority : String? +) -> Result[Unit, Unit] { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let (lowered, lowered3, lowered4) = match authority { + None => (0, 0, 0) + Some(payload2) => { + ignoreList.push(payload2) + (1, @ffi.str2ptr(payload2), payload2.iter().count()) + } + } + let result : Int = wasmImportMethodOutgoingRequestSetAuthority( + self.0, + lowered, + lowered3, + lowered4, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) + return lifted +} + +fn wasmImportMethodOutgoingRequestHeaders(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-request.headers" + +/// Get the headers associated with the Request. +/// +/// The returned `headers` resource is immutable: `set`, `append`, and +/// `delete` operations will fail with `header-error.immutable`. +/// +/// This headers resource is a child: it must be dropped before the parent +/// `outgoing-request` is dropped, or its ownership is transferred to +/// another component by e.g. `outgoing-handler.handle`. +pub fn OutgoingRequest::headers(self : OutgoingRequest) -> Fields { + let result : Int = wasmImportMethodOutgoingRequestHeaders(self.0) + return Fields::Fields(result) +} + +fn wasmImportConstructorRequestOptions() -> Int = "wasi:http/types@0.2.0" "[constructor]request-options" + +/// Construct a default `request-options` value. +pub fn RequestOptions::request_options() -> RequestOptions { + let result : Int = wasmImportConstructorRequestOptions() + return RequestOptions::RequestOptions(result) +} + +fn wasmImportMethodRequestOptionsConnectTimeout(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]request-options.connect-timeout" + +/// The timeout for the initial connect to the HTTP Server. +pub fn RequestOptions::connect_timeout(self : RequestOptions) -> UInt64? { + let return_area = @ffi.malloc(16) + wasmImportMethodRequestOptionsConnectTimeout(self.0, return_area) + let lifted : UInt64? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 8).to_uint64()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodRequestOptionsSetConnectTimeout( + p0 : Int, + p1 : Int, + p2 : Int64 +) -> Int = "wasi:http/types@0.2.0" "[method]request-options.set-connect-timeout" + +/// Set the timeout for the initial connect to the HTTP Server. An error +/// return value indicates that this timeout is not supported. +pub fn RequestOptions::set_connect_timeout( + self : RequestOptions, + duration : UInt64? +) -> Result[Unit, Unit] { + let (lowered, lowered3) = match duration { + None => (0, 0L) + Some(payload2) => (1, payload2.to_int64()) + } + let result : Int = wasmImportMethodRequestOptionsSetConnectTimeout( + self.0, + lowered, + lowered3, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + return lifted +} + +fn wasmImportMethodRequestOptionsFirstByteTimeout(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]request-options.first-byte-timeout" + +/// The timeout for receiving the first byte of the Response body. +pub fn RequestOptions::first_byte_timeout(self : RequestOptions) -> UInt64? { + let return_area = @ffi.malloc(16) + wasmImportMethodRequestOptionsFirstByteTimeout(self.0, return_area) + let lifted : UInt64? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 8).to_uint64()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodRequestOptionsSetFirstByteTimeout( + p0 : Int, + p1 : Int, + p2 : Int64 +) -> Int = "wasi:http/types@0.2.0" "[method]request-options.set-first-byte-timeout" + +/// Set the timeout for receiving the first byte of the Response body. An +/// error return value indicates that this timeout is not supported. +pub fn RequestOptions::set_first_byte_timeout( + self : RequestOptions, + duration : UInt64? +) -> Result[Unit, Unit] { + let (lowered, lowered3) = match duration { + None => (0, 0L) + Some(payload2) => (1, payload2.to_int64()) + } + let result : Int = wasmImportMethodRequestOptionsSetFirstByteTimeout( + self.0, + lowered, + lowered3, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + return lifted +} + +fn wasmImportMethodRequestOptionsBetweenBytesTimeout(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]request-options.between-bytes-timeout" + +/// The timeout for receiving subsequent chunks of bytes in the Response +/// body stream. +pub fn RequestOptions::between_bytes_timeout(self : RequestOptions) -> UInt64? { + let return_area = @ffi.malloc(16) + wasmImportMethodRequestOptionsBetweenBytesTimeout(self.0, return_area) + let lifted : UInt64? = match @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 8).to_uint64()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodRequestOptionsSetBetweenBytesTimeout( + p0 : Int, + p1 : Int, + p2 : Int64 +) -> Int = "wasi:http/types@0.2.0" "[method]request-options.set-between-bytes-timeout" + +/// Set the timeout for receiving subsequent chunks of bytes in the Response +/// body stream. An error return value indicates that this timeout is not +/// supported. +pub fn RequestOptions::set_between_bytes_timeout( + self : RequestOptions, + duration : UInt64? +) -> Result[Unit, Unit] { + let (lowered, lowered3) = match duration { + None => (0, 0L) + Some(payload2) => (1, payload2.to_int64()) + } + let result : Int = wasmImportMethodRequestOptionsSetBetweenBytesTimeout( + self.0, + lowered, + lowered3, + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + return lifted +} + +fn wasmImportStaticResponseOutparamSet( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int, + p4 : Int64, + p5 : Int, + p6 : Int, + p7 : Int, + p8 : Int +) = "wasi:http/types@0.2.0" "[static]response-outparam.set" + +/// Set the value of the `response-outparam` to either send a response, +/// or indicate an error. +/// +/// This method consumes the `response-outparam` to ensure that it is +/// called at most once. If it is never called, the implementation +/// will respond with an error. +/// +/// The user may provide an `error` to `response` to allow the +/// implementation determine how to respond with an HTTP error response. +pub fn ResponseOutparam::set( + param : ResponseOutparam, + response : Result[OutgoingResponse, ErrorCode] +) -> Unit { + let cleanupList : Array[@ffi.Cleanup] = [] + let ignoreList : Array[@ffi.Any] = [] + let ( + lowered315, + lowered316, + lowered317, + lowered318, + lowered319, + lowered320, + lowered321, + lowered322, + ) = match response { + Ok(payload) => (0, payload.0, 0, 0L, 0, 0, 0, 0) + Err(payload2) => { + let ( + lowered308, + lowered309, + lowered310, + lowered311, + lowered312, + lowered313, + lowered314, + ) = match payload2 { + DnsTimeout => (0, 0, 0L, 0, 0, 0, 0) + DnsError(payload8) => { + let (lowered, lowered15, lowered16) = match payload8.rcode { + None => (0, 0, 0) + Some(payload14) => { + ignoreList.push(payload14) + (1, @ffi.str2ptr(payload14), payload14.iter().count()) + } + } + let (lowered23, lowered24) = match payload8.info_code { + None => (0, 0) + Some(payload22) => (1, payload22.to_int()) + } + ( + 1, + lowered, + Int::to_int64(lowered15), + lowered16, + lowered23, + lowered24, + 0, + ) + } + DestinationNotFound => (2, 0, 0L, 0, 0, 0, 0) + DestinationUnavailable => (3, 0, 0L, 0, 0, 0, 0) + DestinationIpProhibited => (4, 0, 0L, 0, 0, 0, 0) + DestinationIpUnroutable => (5, 0, 0L, 0, 0, 0, 0) + ConnectionRefused => (6, 0, 0L, 0, 0, 0, 0) + ConnectionTerminated => (7, 0, 0L, 0, 0, 0, 0) + ConnectionTimeout => (8, 0, 0L, 0, 0, 0, 0) + ConnectionReadTimeout => (9, 0, 0L, 0, 0, 0, 0) + ConnectionWriteTimeout => (10, 0, 0L, 0, 0, 0, 0) + ConnectionLimitReached => (11, 0, 0L, 0, 0, 0, 0) + TlsProtocolError => (12, 0, 0L, 0, 0, 0, 0) + TlsCertificateError => (13, 0, 0L, 0, 0, 0, 0) + TlsAlertReceived(payload63) => { + let (lowered70, lowered71) = match payload63.alert_id { + None => (0, 0) + Some(payload69) => (1, payload69.to_int()) + } + let (lowered78, lowered79, lowered80) = match + payload63.alert_message { + None => (0, 0, 0) + Some(payload77) => { + ignoreList.push(payload77) + (1, @ffi.str2ptr(payload77), payload77.iter().count()) + } + } + ( + 14, + lowered70, + Int::to_int64(lowered71), + lowered78, + lowered79, + lowered80, + 0, + ) + } + HttpRequestDenied => (15, 0, 0L, 0, 0, 0, 0) + HttpRequestLengthRequired => (16, 0, 0L, 0, 0, 0, 0) + HttpRequestBodySize(payload89) => { + let (lowered96, lowered97) = match payload89 { + None => (0, 0L) + Some(payload95) => (1, payload95.to_int64()) + } + (17, lowered96, lowered97, 0, 0, 0, 0) + } + HttpRequestMethodInvalid => (18, 0, 0L, 0, 0, 0, 0) + HttpRequestUriInvalid => (19, 0, 0L, 0, 0, 0, 0) + HttpRequestUriTooLong => (20, 0, 0L, 0, 0, 0, 0) + HttpRequestHeaderSectionSize(payload109) => { + let (lowered116, lowered117) = match payload109 { + None => (0, 0) + Some(payload115) => (1, payload115.to_int()) + } + (21, lowered116, Int::to_int64(lowered117), 0, 0, 0, 0) + } + HttpRequestHeaderSize(payload120) => { + let ( + lowered144, + lowered145, + lowered146, + lowered147, + lowered148, + lowered149, + ) = match payload120 { + None => (0, 0, 0, 0, 0, 0) + Some(payload126) => { + let (lowered133, lowered134, lowered135) = match + payload126.field_name { + None => (0, 0, 0) + Some(payload132) => { + ignoreList.push(payload132) + (1, @ffi.str2ptr(payload132), payload132.iter().count()) + } + } + let (lowered142, lowered143) = match payload126.field_size { + None => (0, 0) + Some(payload141) => (1, payload141.to_int()) + } + (1, lowered133, lowered134, lowered135, lowered142, lowered143) + } + } + ( + 22, + lowered144, + Int::to_int64(lowered145), + lowered146, + lowered147, + lowered148, + lowered149, + ) + } + HttpRequestTrailerSectionSize(payload152) => { + let (lowered159, lowered160) = match payload152 { + None => (0, 0) + Some(payload158) => (1, payload158.to_int()) + } + (23, lowered159, Int::to_int64(lowered160), 0, 0, 0, 0) + } + HttpRequestTrailerSize(payload163) => { + let (lowered170, lowered171, lowered172) = match + payload163.field_name { + None => (0, 0, 0) + Some(payload169) => { + ignoreList.push(payload169) + (1, @ffi.str2ptr(payload169), payload169.iter().count()) + } + } + let (lowered179, lowered180) = match payload163.field_size { + None => (0, 0) + Some(payload178) => (1, payload178.to_int()) + } + ( + 24, + lowered170, + Int::to_int64(lowered171), + lowered172, + lowered179, + lowered180, + 0, + ) + } + HttpResponseIncomplete => (25, 0, 0L, 0, 0, 0, 0) + HttpResponseHeaderSectionSize(payload186) => { + let (lowered193, lowered194) = match payload186 { + None => (0, 0) + Some(payload192) => (1, payload192.to_int()) + } + (26, lowered193, Int::to_int64(lowered194), 0, 0, 0, 0) + } + HttpResponseHeaderSize(payload197) => { + let (lowered204, lowered205, lowered206) = match + payload197.field_name { + None => (0, 0, 0) + Some(payload203) => { + ignoreList.push(payload203) + (1, @ffi.str2ptr(payload203), payload203.iter().count()) + } + } + let (lowered213, lowered214) = match payload197.field_size { + None => (0, 0) + Some(payload212) => (1, payload212.to_int()) + } + ( + 27, + lowered204, + Int::to_int64(lowered205), + lowered206, + lowered213, + lowered214, + 0, + ) + } + HttpResponseBodySize(payload217) => { + let (lowered224, lowered225) = match payload217 { + None => (0, 0L) + Some(payload223) => (1, payload223.to_int64()) + } + (28, lowered224, lowered225, 0, 0, 0, 0) + } + HttpResponseTrailerSectionSize(payload228) => { + let (lowered235, lowered236) = match payload228 { + None => (0, 0) + Some(payload234) => (1, payload234.to_int()) + } + (29, lowered235, Int::to_int64(lowered236), 0, 0, 0, 0) + } + HttpResponseTrailerSize(payload239) => { + let (lowered246, lowered247, lowered248) = match + payload239.field_name { + None => (0, 0, 0) + Some(payload245) => { + ignoreList.push(payload245) + (1, @ffi.str2ptr(payload245), payload245.iter().count()) + } + } + let (lowered255, lowered256) = match payload239.field_size { + None => (0, 0) + Some(payload254) => (1, payload254.to_int()) + } + ( + 30, + lowered246, + Int::to_int64(lowered247), + lowered248, + lowered255, + lowered256, + 0, + ) + } + HttpResponseTransferCoding(payload259) => { + let (lowered266, lowered267, lowered268) = match payload259 { + None => (0, 0, 0) + Some(payload265) => { + ignoreList.push(payload265) + (1, @ffi.str2ptr(payload265), payload265.iter().count()) + } + } + (31, lowered266, Int::to_int64(lowered267), lowered268, 0, 0, 0) + } + HttpResponseContentCoding(payload271) => { + let (lowered278, lowered279, lowered280) = match payload271 { + None => (0, 0, 0) + Some(payload277) => { + ignoreList.push(payload277) + (1, @ffi.str2ptr(payload277), payload277.iter().count()) + } + } + (32, lowered278, Int::to_int64(lowered279), lowered280, 0, 0, 0) + } + HttpResponseTimeout => (33, 0, 0L, 0, 0, 0, 0) + HttpUpgradeFailed => (34, 0, 0L, 0, 0, 0, 0) + HttpProtocolError => (35, 0, 0L, 0, 0, 0, 0) + LoopDetected => (36, 0, 0L, 0, 0, 0, 0) + ConfigurationError => (37, 0, 0L, 0, 0, 0, 0) + InternalError(payload298) => { + let (lowered305, lowered306, lowered307) = match payload298 { + None => (0, 0, 0) + Some(payload304) => { + ignoreList.push(payload304) + (1, @ffi.str2ptr(payload304), payload304.iter().count()) + } + } + (38, lowered305, Int::to_int64(lowered306), lowered307, 0, 0, 0) + } + _ => panic() + } + ( + 1, lowered308, lowered309, lowered310, lowered311, lowered312, lowered313, + lowered314, + ) + } + _ => panic() + } + wasmImportStaticResponseOutparamSet( + param.0, + lowered315, + lowered316, + lowered317, + lowered318, + lowered319, + lowered320, + lowered321, + lowered322, + ) + cleanupList.each(fn(cleanup) { @ffi.free(cleanup.address) }) + ignore(ignoreList) +} + +fn wasmImportMethodIncomingResponseStatus(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]incoming-response.status" + +/// Returns the status code from the incoming response. +pub fn IncomingResponse::status(self : IncomingResponse) -> UInt { + let result : Int = wasmImportMethodIncomingResponseStatus(self.0) + return result.land(0xFFFF).to_uint() +} + +fn wasmImportMethodIncomingResponseHeaders(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]incoming-response.headers" + +/// Returns the headers from the incoming response. +/// +/// The returned `headers` resource is immutable: `set`, `append`, and +/// `delete` operations will fail with `header-error.immutable`. +/// +/// This headers resource is a child: it must be dropped before the parent +/// `incoming-response` is dropped. +pub fn IncomingResponse::headers(self : IncomingResponse) -> Fields { + let result : Int = wasmImportMethodIncomingResponseHeaders(self.0) + return Fields::Fields(result) +} + +fn wasmImportMethodIncomingResponseConsume(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-response.consume" + +/// Returns the incoming body. May be called at most once. Returns error +/// if called additional times. +pub fn IncomingResponse::consume( + self : IncomingResponse +) -> Result[IncomingBody, Unit] { + let return_area = @ffi.malloc(8) + wasmImportMethodIncomingResponseConsume(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(IncomingBody::IncomingBody(@ffi.load32(return_area + 4))) + 1 => Result::Err(()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodIncomingBodyStream(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]incoming-body.stream" + +/// Returns the contents of the body, as a stream of bytes. +/// +/// Returns success on first call: the stream representing the contents +/// can be retrieved at most once. Subsequent calls will return error. +/// +/// The returned `input-stream` resource is a child: it must be dropped +/// before the parent `incoming-body` is dropped, or consumed by +/// `incoming-body.finish`. +/// +/// This invariant ensures that the implementation can determine whether +/// the user is consuming the contents of the body, waiting on the +/// `future-trailers` to be ready, or neither. This allows for network +/// backpressure is to be applied when the user is consuming the body, +/// and for that backpressure to not inhibit delivery of the trailers if +/// the user does not read the entire body. +pub fn IncomingBody::stream( + self : IncomingBody +) -> Result[@streams.InputStream, Unit] { + let return_area = @ffi.malloc(8) + wasmImportMethodIncomingBodyStream(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => + Result::Ok( + @streams.InputStream::InputStream(@ffi.load32(return_area + 4)), + ) + 1 => Result::Err(()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportStaticIncomingBodyFinish(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[static]incoming-body.finish" + +/// Takes ownership of `incoming-body`, and returns a `future-trailers`. +/// This function will trap if the `input-stream` child is still alive. +pub fn IncomingBody::finish(this : IncomingBody) -> FutureTrailers { + let result : Int = wasmImportStaticIncomingBodyFinish(this.0) + return FutureTrailers::FutureTrailers(result) +} + +fn wasmImportMethodFutureTrailersSubscribe(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]future-trailers.subscribe" + +/// Returns a pollable which becomes ready when either the trailers have +/// been received, or an error has occurred. When this pollable is ready, +/// the `get` method will return `some`. +pub fn FutureTrailers::subscribe(self : FutureTrailers) -> @poll.Pollable { + let result : Int = wasmImportMethodFutureTrailersSubscribe(self.0) + return @poll.Pollable::Pollable(result) +} + +fn wasmImportMethodFutureTrailersGet(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]future-trailers.get" + +/// Returns the contents of the trailers, or an error which occurred, +/// once the future is ready. +/// +/// The outer `option` represents future readiness. Users can wait on this +/// `option` to become `some` using the `subscribe` method. +/// +/// The outer `result` is used to retrieve the trailers or error at most +/// once. It will be success on the first call in which the outer option +/// is `some`, and error on subsequent calls. +/// +/// The inner `result` represents that either the HTTP Request or Response +/// body, as well as any trailers, were received successfully, or that an +/// error occurred receiving them. The optional `trailers` indicates whether +/// or not trailers were present in the body. +/// +/// When some `trailers` are returned by this method, the `trailers` +/// resource is immutable, and a child. Use of the `set`, `append`, or +/// `delete` methods will return an error, and the resource must be +/// dropped before the parent `future-trailers` is dropped. +pub fn FutureTrailers::get( + self : FutureTrailers +) -> Result[Result[Fields?, ErrorCode], Unit]? { + let return_area = @ffi.malloc(56) + wasmImportMethodFutureTrailersGet(self.0, return_area) + let lifted213 : Result[Result[Fields?, ErrorCode], Unit]? = match + @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let lifted212 = match @ffi.load8_u(return_area + 8) { + 0 => { + let lifted209 = match @ffi.load8_u(return_area + 16) { + 0 => { + let lifted : Fields? = match @ffi.load8_u(return_area + 24) { + 0 => Option::None + 1 => Option::Some(Fields::Fields(@ffi.load32(return_area + 28))) + _ => panic() + } + Result::Ok(lifted) + } + 1 => { + let lifted208 = match @ffi.load8_u(return_area + 24) { + 0 => ErrorCode::DnsTimeout + 1 => { + let lifted20 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 36)) + Option::Some(result) + } + _ => panic() + } + let lifted25 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => + Option::Some( + @ffi.load16_u(return_area + 46).land(0xFFFF).to_uint(), + ) + _ => panic() + } + ErrorCode::DnsError( + DnsErrorPayload::{ rcode: lifted20, info_code: lifted25 }, + ) + } + 2 => ErrorCode::DestinationNotFound + 3 => ErrorCode::DestinationUnavailable + 4 => ErrorCode::DestinationIpProhibited + 5 => ErrorCode::DestinationIpUnroutable + 6 => ErrorCode::ConnectionRefused + 7 => ErrorCode::ConnectionTerminated + 8 => ErrorCode::ConnectionTimeout + 9 => ErrorCode::ConnectionReadTimeout + 10 => ErrorCode::ConnectionWriteTimeout + 11 => ErrorCode::ConnectionLimitReached + 12 => ErrorCode::TlsProtocolError + 13 => ErrorCode::TlsCertificateError + 14 => { + let lifted56 : Byte? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load8_u(return_area + 33).to_byte()) + _ => panic() + } + let lifted62 : String? = match + @ffi.load8_u(return_area + 36) { + 0 => Option::None + 1 => { + let result61 = @ffi.ptr2str(@ffi.load32(return_area + 40)) + Option::Some(result61) + } + _ => panic() + } + ErrorCode::TlsAlertReceived( + TlsAlertReceivedPayload::{ + alert_id: lifted56, + alert_message: lifted62, + }, + ) + } + 15 => ErrorCode::HttpRequestDenied + 16 => ErrorCode::HttpRequestLengthRequired + 17 => { + let lifted73 : UInt64? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 40).to_uint64()) + _ => panic() + } + ErrorCode::HttpRequestBodySize(lifted73) + } + 18 => ErrorCode::HttpRequestMethodInvalid + 19 => ErrorCode::HttpRequestUriInvalid + 20 => ErrorCode::HttpRequestUriTooLong + 21 => { + let lifted86 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestHeaderSectionSize(lifted86) + } + 22 => { + let lifted104 : FieldSizePayload? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let lifted98 : String? = match + @ffi.load8_u(return_area + 36) { + 0 => Option::None + 1 => { + let result97 = @ffi.ptr2str( + @ffi.load32(return_area + 40), + ) + Option::Some(result97) + } + _ => panic() + } + let lifted103 : UInt? = match + @ffi.load8_u(return_area + 48) { + 0 => Option::None + 1 => + Option::Some(@ffi.load32(return_area + 52).to_uint()) + _ => panic() + } + Option::Some( + FieldSizePayload::{ + field_name: lifted98, + field_size: lifted103, + }, + ) + } + _ => panic() + } + ErrorCode::HttpRequestHeaderSize(lifted104) + } + 23 => { + let lifted111 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSectionSize(lifted111) + } + 24 => { + let lifted119 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result118 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result118) + } + _ => panic() + } + let lifted124 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 48).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSize( + FieldSizePayload::{ + field_name: lifted119, + field_size: lifted124, + }, + ) + } + 25 => ErrorCode::HttpResponseIncomplete + 26 => { + let lifted133 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSectionSize(lifted133) + } + 27 => { + let lifted141 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result140 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result140) + } + _ => panic() + } + let lifted146 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 48).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSize( + FieldSizePayload::{ + field_name: lifted141, + field_size: lifted146, + }, + ) + } + 28 => { + let lifted153 : UInt64? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 40).to_uint64()) + _ => panic() + } + ErrorCode::HttpResponseBodySize(lifted153) + } + 29 => { + let lifted160 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSectionSize(lifted160) + } + 30 => { + let lifted168 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result167 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result167) + } + _ => panic() + } + let lifted173 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 48).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSize( + FieldSizePayload::{ + field_name: lifted168, + field_size: lifted173, + }, + ) + } + 31 => { + let lifted181 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result180 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result180) + } + _ => panic() + } + ErrorCode::HttpResponseTransferCoding(lifted181) + } + 32 => { + let lifted189 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result188 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result188) + } + _ => panic() + } + ErrorCode::HttpResponseContentCoding(lifted189) + } + 33 => ErrorCode::HttpResponseTimeout + 34 => ErrorCode::HttpUpgradeFailed + 35 => ErrorCode::HttpProtocolError + 36 => ErrorCode::LoopDetected + 37 => ErrorCode::ConfigurationError + 38 => { + let lifted207 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result206 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result206) + } + _ => panic() + } + ErrorCode::InternalError(lifted207) + } + _ => panic() + } + Result::Err(lifted208) + } + _ => panic() + } + Result::Ok(lifted209) + } + 1 => Result::Err(()) + _ => panic() + } + Option::Some(lifted212) + } + _ => panic() + } + @ffi.free(return_area) + return lifted213 +} + +fn wasmImportConstructorOutgoingResponse(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[constructor]outgoing-response" + +/// Construct an `outgoing-response`, with a default `status-code` of `200`. +/// If a different `status-code` is needed, it must be set via the +/// `set-status-code` method. +/// +/// * `headers` is the HTTP Headers for the Response. +pub fn OutgoingResponse::outgoing_response( + headers : Fields +) -> OutgoingResponse { + let result : Int = wasmImportConstructorOutgoingResponse(headers.0) + return OutgoingResponse::OutgoingResponse(result) +} + +fn wasmImportMethodOutgoingResponseStatusCode(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-response.status-code" + +/// Get the HTTP Status Code for the Response. +pub fn OutgoingResponse::status_code(self : OutgoingResponse) -> UInt { + let result : Int = wasmImportMethodOutgoingResponseStatusCode(self.0) + return result.land(0xFFFF).to_uint() +} + +fn wasmImportMethodOutgoingResponseSetStatusCode(p0 : Int, p1 : Int) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-response.set-status-code" + +/// Set the HTTP Status Code for the Response. Fails if the status-code +/// given is not a valid http status code. +pub fn OutgoingResponse::set_status_code( + self : OutgoingResponse, + status_code : UInt +) -> Result[Unit, Unit] { + let result : Int = wasmImportMethodOutgoingResponseSetStatusCode( + self.0, + status_code.to_int(), + ) + let lifted = match result { + 0 => Result::Ok(()) + 1 => Result::Err(()) + _ => panic() + } + return lifted +} + +fn wasmImportMethodOutgoingResponseHeaders(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]outgoing-response.headers" + +/// Get the headers associated with the Request. +/// +/// The returned `headers` resource is immutable: `set`, `append`, and +/// `delete` operations will fail with `header-error.immutable`. +/// +/// This headers resource is a child: it must be dropped before the parent +/// `outgoing-request` is dropped, or its ownership is transferred to +/// another component by e.g. `outgoing-handler.handle`. +pub fn OutgoingResponse::headers(self : OutgoingResponse) -> Fields { + let result : Int = wasmImportMethodOutgoingResponseHeaders(self.0) + return Fields::Fields(result) +} + +fn wasmImportMethodOutgoingResponseBody(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-response.body" + +/// Returns the resource corresponding to the outgoing Body for this Response. +/// +/// Returns success on the first call: the `outgoing-body` resource for +/// this `outgoing-response` can be retrieved at most once. Subsequent +/// calls will return error. +pub fn OutgoingResponse::body( + self : OutgoingResponse +) -> Result[OutgoingBody, Unit] { + let return_area = @ffi.malloc(8) + wasmImportMethodOutgoingResponseBody(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(OutgoingBody::OutgoingBody(@ffi.load32(return_area + 4))) + 1 => Result::Err(()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportMethodOutgoingBodyWrite(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]outgoing-body.write" + +/// Returns a stream for writing the body contents. +/// +/// The returned `output-stream` is a child resource: it must be dropped +/// before the parent `outgoing-body` resource is dropped (or finished), +/// otherwise the `outgoing-body` drop or `finish` will trap. +/// +/// Returns success on the first call: the `output-stream` resource for +/// this `outgoing-body` may be retrieved at most once. Subsequent calls +/// will return error. +pub fn OutgoingBody::write( + self : OutgoingBody +) -> Result[@streams.OutputStream, Unit] { + let return_area = @ffi.malloc(8) + wasmImportMethodOutgoingBodyWrite(self.0, return_area) + let lifted = match @ffi.load8_u(return_area + 0) { + 0 => + Result::Ok( + @streams.OutputStream::OutputStream(@ffi.load32(return_area + 4)), + ) + 1 => Result::Err(()) + _ => panic() + } + @ffi.free(return_area) + return lifted +} + +fn wasmImportStaticOutgoingBodyFinish(p0 : Int, p1 : Int, p2 : Int, p3 : Int) = "wasi:http/types@0.2.0" "[static]outgoing-body.finish" + +/// Finalize an outgoing body, optionally providing trailers. This must be +/// called to signal that the response is complete. If the `outgoing-body` +/// is dropped without calling `outgoing-body.finalize`, the implementation +/// should treat the body as corrupted. +/// +/// Fails if the body's `outgoing-request` or `outgoing-response` was +/// constructed with a Content-Length header, and the contents written +/// to the body (via `write`) does not match the value given in the +/// Content-Length. +pub fn OutgoingBody::finish( + this : OutgoingBody, + trailers : Fields? +) -> Result[Unit, ErrorCode] { + let (lowered, lowered3) = match trailers { + None => (0, 0) + Some(payload2) => (1, payload2.0) + } + let return_area = @ffi.malloc(40) + wasmImportStaticOutgoingBodyFinish(this.0, lowered, lowered3, return_area) + let lifted204 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted203 = match @ffi.load8_u(return_area + 8) { + 0 => ErrorCode::DnsTimeout + 1 => { + let lifted : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result) + } + _ => panic() + } + let lifted20 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => + Option::Some( + @ffi.load16_u(return_area + 30).land(0xFFFF).to_uint(), + ) + _ => panic() + } + ErrorCode::DnsError( + DnsErrorPayload::{ rcode: lifted, info_code: lifted20 }, + ) + } + 2 => ErrorCode::DestinationNotFound + 3 => ErrorCode::DestinationUnavailable + 4 => ErrorCode::DestinationIpProhibited + 5 => ErrorCode::DestinationIpUnroutable + 6 => ErrorCode::ConnectionRefused + 7 => ErrorCode::ConnectionTerminated + 8 => ErrorCode::ConnectionTimeout + 9 => ErrorCode::ConnectionReadTimeout + 10 => ErrorCode::ConnectionWriteTimeout + 11 => ErrorCode::ConnectionLimitReached + 12 => ErrorCode::TlsProtocolError + 13 => ErrorCode::TlsCertificateError + 14 => { + let lifted51 : Byte? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load8_u(return_area + 17).to_byte()) + _ => panic() + } + let lifted57 : String? = match @ffi.load8_u(return_area + 20) { + 0 => Option::None + 1 => { + let result56 = @ffi.ptr2str(@ffi.load32(return_area + 24)) + Option::Some(result56) + } + _ => panic() + } + ErrorCode::TlsAlertReceived( + TlsAlertReceivedPayload::{ + alert_id: lifted51, + alert_message: lifted57, + }, + ) + } + 15 => ErrorCode::HttpRequestDenied + 16 => ErrorCode::HttpRequestLengthRequired + 17 => { + let lifted68 : UInt64? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 24).to_uint64()) + _ => panic() + } + ErrorCode::HttpRequestBodySize(lifted68) + } + 18 => ErrorCode::HttpRequestMethodInvalid + 19 => ErrorCode::HttpRequestUriInvalid + 20 => ErrorCode::HttpRequestUriTooLong + 21 => { + let lifted81 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestHeaderSectionSize(lifted81) + } + 22 => { + let lifted99 : FieldSizePayload? = match + @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let lifted93 : String? = match @ffi.load8_u(return_area + 20) { + 0 => Option::None + 1 => { + let result92 = @ffi.ptr2str(@ffi.load32(return_area + 24)) + Option::Some(result92) + } + _ => panic() + } + let lifted98 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + Option::Some( + FieldSizePayload::{ field_name: lifted93, field_size: lifted98 }, + ) + } + _ => panic() + } + ErrorCode::HttpRequestHeaderSize(lifted99) + } + 23 => { + let lifted106 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSectionSize(lifted106) + } + 24 => { + let lifted114 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result113 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result113) + } + _ => panic() + } + let lifted119 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 32).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSize( + FieldSizePayload::{ field_name: lifted114, field_size: lifted119 }, + ) + } + 25 => ErrorCode::HttpResponseIncomplete + 26 => { + let lifted128 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSectionSize(lifted128) + } + 27 => { + let lifted136 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result135 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result135) + } + _ => panic() + } + let lifted141 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 32).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSize( + FieldSizePayload::{ field_name: lifted136, field_size: lifted141 }, + ) + } + 28 => { + let lifted148 : UInt64? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 24).to_uint64()) + _ => panic() + } + ErrorCode::HttpResponseBodySize(lifted148) + } + 29 => { + let lifted155 : UInt? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 20).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSectionSize(lifted155) + } + 30 => { + let lifted163 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result162 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result162) + } + _ => panic() + } + let lifted168 : UInt? = match @ffi.load8_u(return_area + 28) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 32).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSize( + FieldSizePayload::{ field_name: lifted163, field_size: lifted168 }, + ) + } + 31 => { + let lifted176 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result175 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result175) + } + _ => panic() + } + ErrorCode::HttpResponseTransferCoding(lifted176) + } + 32 => { + let lifted184 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result183 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result183) + } + _ => panic() + } + ErrorCode::HttpResponseContentCoding(lifted184) + } + 33 => ErrorCode::HttpResponseTimeout + 34 => ErrorCode::HttpUpgradeFailed + 35 => ErrorCode::HttpProtocolError + 36 => ErrorCode::LoopDetected + 37 => ErrorCode::ConfigurationError + 38 => { + let lifted202 : String? = match @ffi.load8_u(return_area + 16) { + 0 => Option::None + 1 => { + let result201 = @ffi.ptr2str(@ffi.load32(return_area + 20)) + Option::Some(result201) + } + _ => panic() + } + ErrorCode::InternalError(lifted202) + } + _ => panic() + } + Result::Err(lifted203) + } + _ => panic() + } + @ffi.free(return_area) + return lifted204 +} + +fn wasmImportMethodFutureIncomingResponseSubscribe(p0 : Int) -> Int = "wasi:http/types@0.2.0" "[method]future-incoming-response.subscribe" + +/// Returns a pollable which becomes ready when either the Response has +/// been received, or an error has occurred. When this pollable is ready, +/// the `get` method will return `some`. +pub fn FutureIncomingResponse::subscribe( + self : FutureIncomingResponse +) -> @poll.Pollable { + let result : Int = wasmImportMethodFutureIncomingResponseSubscribe(self.0) + return @poll.Pollable::Pollable(result) +} + +fn wasmImportMethodFutureIncomingResponseGet(p0 : Int, p1 : Int) = "wasi:http/types@0.2.0" "[method]future-incoming-response.get" + +/// Returns the incoming HTTP Response, or an error, once one is ready. +/// +/// The outer `option` represents future readiness. Users can wait on this +/// `option` to become `some` using the `subscribe` method. +/// +/// The outer `result` is used to retrieve the response or error at most +/// once. It will be success on the first call in which the outer option +/// is `some`, and error on subsequent calls. +/// +/// The inner `result` represents that either the incoming HTTP Response +/// status and headers have received successfully, or that an error +/// occurred. Errors may also occur while consuming the response body, +/// but those will be reported by the `incoming-body` and its +/// `output-stream` child. +pub fn FutureIncomingResponse::get( + self : FutureIncomingResponse +) -> Result[Result[IncomingResponse, ErrorCode], Unit]? { + let return_area = @ffi.malloc(56) + wasmImportMethodFutureIncomingResponseGet(self.0, return_area) + let lifted208 : Result[Result[IncomingResponse, ErrorCode], Unit]? = match + @ffi.load8_u(return_area + 0) { + 0 => Option::None + 1 => { + let lifted207 = match @ffi.load8_u(return_area + 8) { + 0 => { + let lifted204 = match @ffi.load8_u(return_area + 16) { + 0 => + Result::Ok( + IncomingResponse::IncomingResponse( + @ffi.load32(return_area + 24), + ), + ) + 1 => { + let lifted203 = match @ffi.load8_u(return_area + 24) { + 0 => ErrorCode::DnsTimeout + 1 => { + let lifted : String? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result = @ffi.ptr2str(@ffi.load32(return_area + 36)) + Option::Some(result) + } + _ => panic() + } + let lifted20 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => + Option::Some( + @ffi.load16_u(return_area + 46).land(0xFFFF).to_uint(), + ) + _ => panic() + } + ErrorCode::DnsError( + DnsErrorPayload::{ rcode: lifted, info_code: lifted20 }, + ) + } + 2 => ErrorCode::DestinationNotFound + 3 => ErrorCode::DestinationUnavailable + 4 => ErrorCode::DestinationIpProhibited + 5 => ErrorCode::DestinationIpUnroutable + 6 => ErrorCode::ConnectionRefused + 7 => ErrorCode::ConnectionTerminated + 8 => ErrorCode::ConnectionTimeout + 9 => ErrorCode::ConnectionReadTimeout + 10 => ErrorCode::ConnectionWriteTimeout + 11 => ErrorCode::ConnectionLimitReached + 12 => ErrorCode::TlsProtocolError + 13 => ErrorCode::TlsCertificateError + 14 => { + let lifted51 : Byte? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load8_u(return_area + 33).to_byte()) + _ => panic() + } + let lifted57 : String? = match + @ffi.load8_u(return_area + 36) { + 0 => Option::None + 1 => { + let result56 = @ffi.ptr2str(@ffi.load32(return_area + 40)) + Option::Some(result56) + } + _ => panic() + } + ErrorCode::TlsAlertReceived( + TlsAlertReceivedPayload::{ + alert_id: lifted51, + alert_message: lifted57, + }, + ) + } + 15 => ErrorCode::HttpRequestDenied + 16 => ErrorCode::HttpRequestLengthRequired + 17 => { + let lifted68 : UInt64? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 40).to_uint64()) + _ => panic() + } + ErrorCode::HttpRequestBodySize(lifted68) + } + 18 => ErrorCode::HttpRequestMethodInvalid + 19 => ErrorCode::HttpRequestUriInvalid + 20 => ErrorCode::HttpRequestUriTooLong + 21 => { + let lifted81 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestHeaderSectionSize(lifted81) + } + 22 => { + let lifted99 : FieldSizePayload? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let lifted93 : String? = match + @ffi.load8_u(return_area + 36) { + 0 => Option::None + 1 => { + let result92 = @ffi.ptr2str( + @ffi.load32(return_area + 40), + ) + Option::Some(result92) + } + _ => panic() + } + let lifted98 : UInt? = match + @ffi.load8_u(return_area + 48) { + 0 => Option::None + 1 => + Option::Some(@ffi.load32(return_area + 52).to_uint()) + _ => panic() + } + Option::Some( + FieldSizePayload::{ + field_name: lifted93, + field_size: lifted98, + }, + ) + } + _ => panic() + } + ErrorCode::HttpRequestHeaderSize(lifted99) + } + 23 => { + let lifted106 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSectionSize(lifted106) + } + 24 => { + let lifted114 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result113 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result113) + } + _ => panic() + } + let lifted119 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 48).to_uint()) + _ => panic() + } + ErrorCode::HttpRequestTrailerSize( + FieldSizePayload::{ + field_name: lifted114, + field_size: lifted119, + }, + ) + } + 25 => ErrorCode::HttpResponseIncomplete + 26 => { + let lifted128 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSectionSize(lifted128) + } + 27 => { + let lifted136 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result135 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result135) + } + _ => panic() + } + let lifted141 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 48).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseHeaderSize( + FieldSizePayload::{ + field_name: lifted136, + field_size: lifted141, + }, + ) + } + 28 => { + let lifted148 : UInt64? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load64(return_area + 40).to_uint64()) + _ => panic() + } + ErrorCode::HttpResponseBodySize(lifted148) + } + 29 => { + let lifted155 : UInt? = match @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 36).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSectionSize(lifted155) + } + 30 => { + let lifted163 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result162 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result162) + } + _ => panic() + } + let lifted168 : UInt? = match @ffi.load8_u(return_area + 44) { + 0 => Option::None + 1 => Option::Some(@ffi.load32(return_area + 48).to_uint()) + _ => panic() + } + ErrorCode::HttpResponseTrailerSize( + FieldSizePayload::{ + field_name: lifted163, + field_size: lifted168, + }, + ) + } + 31 => { + let lifted176 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result175 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result175) + } + _ => panic() + } + ErrorCode::HttpResponseTransferCoding(lifted176) + } + 32 => { + let lifted184 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result183 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result183) + } + _ => panic() + } + ErrorCode::HttpResponseContentCoding(lifted184) + } + 33 => ErrorCode::HttpResponseTimeout + 34 => ErrorCode::HttpUpgradeFailed + 35 => ErrorCode::HttpProtocolError + 36 => ErrorCode::LoopDetected + 37 => ErrorCode::ConfigurationError + 38 => { + let lifted202 : String? = match + @ffi.load8_u(return_area + 32) { + 0 => Option::None + 1 => { + let result201 = @ffi.ptr2str( + @ffi.load32(return_area + 36), + ) + Option::Some(result201) + } + _ => panic() + } + ErrorCode::InternalError(lifted202) + } + _ => panic() + } + Result::Err(lifted203) + } + _ => panic() + } + Result::Ok(lifted204) + } + 1 => Result::Err(()) + _ => panic() + } + Option::Some(lifted207) + } + _ => panic() + } + @ffi.free(return_area) + return lifted208 +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/error/moon.pkg.json b/components/moonbit/http-hello-world/interface/imports/wasi/io/error/moon.pkg.json new file mode 100644 index 0000000..bc3861e --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/error/moon.pkg.json @@ -0,0 +1 @@ +{ "import": [{ "path": "wasmcloud/example/ffi", "alias": "ffi" }] } diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/error/top.mbt b/components/moonbit/http-hello-world/interface/imports/wasi/io/error/top.mbt new file mode 100644 index 0000000..c34255e --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/error/top.mbt @@ -0,0 +1,42 @@ +// Generated by `wit-bindgen` 0.28.0. DO NOT EDIT! +/// A resource which represents some error information. +/// +/// The only method provided by this resource is `to-debug-string`, +/// which provides some human-readable information about the error. +/// +/// In the `wasi:io` package, this resource is returned through the +/// `wasi:io/streams/stream-error` type. +/// +/// To provide more specific error information, other interfaces may +/// offer functions to "downcast" this error into more specific types. For example, +/// errors returned from streams derived from filesystem types can be described using +/// the filesystem's own error-code type. This is done using the function +/// `wasi:filesystem/types/filesystem-error-code`, which takes a `borrow` +/// parameter and returns an `option`. +/// +/// The set of functions which can "downcast" an `error` into a more +/// concrete type is open. +pub type Error_ Int derive(Show, Eq) + +fn wasmImportResourceDropError_(resource : Int) = "wasi:io/error@0.2.0" "[resource-drop]error" + +pub fn Error_::drop(self : Error_) -> Unit { + wasmImportResourceDropError_(self.0) +} + +fn wasmImportMethodErrorToDebugString(p0 : Int, p1 : Int) = "wasi:io/error@0.2.0" "[method]error.to-debug-string" + +/// Returns a string that is suitable to assist humans in debugging +/// this error. +/// +/// WARNING: The returned string should not be consumed mechanically! +/// It may change across platforms, hosts, or other implementation +/// details. Parsing this string is a major platform-compatibility +/// hazard. +pub fn Error_::to_debug_string(self : Error_) -> String { + let return_area = @ffi.malloc(8) + wasmImportMethodErrorToDebugString(self.0, return_area) + let result = @ffi.ptr2str(@ffi.load32(return_area + 0)) + @ffi.free(return_area) + return result +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/README.md b/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/README.md new file mode 100644 index 0000000..d8352c0 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/README.md @@ -0,0 +1,2 @@ +A poll API intended to let users wait for I/O events on multiple handles +at once. \ No newline at end of file diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/moon.pkg.json b/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/moon.pkg.json new file mode 100644 index 0000000..bc3861e --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/moon.pkg.json @@ -0,0 +1 @@ +{ "import": [{ "path": "wasmcloud/example/ffi", "alias": "ffi" }] } diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/top.mbt b/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/top.mbt new file mode 100644 index 0000000..10209cb --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/poll/top.mbt @@ -0,0 +1,71 @@ +// Generated by `wit-bindgen` 0.28.0. DO NOT EDIT! +/// `pollable` represents a single I/O event which may be ready, or not. +pub type Pollable Int derive(Show, Eq) + +fn wasmImportResourceDropPollable(resource : Int) = "wasi:io/poll@0.2.0" "[resource-drop]pollable" + +pub fn Pollable::drop(self : Pollable) -> Unit { + wasmImportResourceDropPollable(self.0) +} + +fn wasmImportMethodPollableReady(p0 : Int) -> Int = "wasi:io/poll@0.2.0" "[method]pollable.ready" + +/// Return the readiness of a pollable. This function never blocks. +/// +/// Returns `true` when the pollable is ready, and `false` otherwise. +pub fn Pollable::ready(self : Pollable) -> Bool { + let result : Int = wasmImportMethodPollableReady(self.0) + return result != 0 +} + +fn wasmImportMethodPollableBlock(p0 : Int) = "wasi:io/poll@0.2.0" "[method]pollable.block" + +/// `block` returns immediately if the pollable is ready, and otherwise +/// blocks until ready. +/// +/// This function is equivalent to calling `poll.poll` on a list +/// containing only this pollable. +pub fn Pollable::block(self : Pollable) -> Unit { + wasmImportMethodPollableBlock(self.0) +} + +fn wasmImportPoll(p0 : Int, p1 : Int, p2 : Int) = "wasi:io/poll@0.2.0" "poll" + +/// Poll for completion on a set of pollables. +/// +/// This function takes a list of pollables, which identify I/O sources of +/// interest, and waits until one or more of the events is ready for I/O. +/// +/// The result `list` contains one or more indices of handles in the +/// argument list that is ready for I/O. +/// +/// This function traps if either: +/// - the list is empty, or: +/// - the list contains more elements than can be indexed with a `u32` value. +/// +/// A timeout can be implemented by adding a pollable from the +/// wasi-clocks API to the list. +/// +/// This function does not return a `result`; polling in itself does not +/// do any I/O so it doesn't fail. If any of the I/O sources identified by +/// the pollables has an error, it is indicated by marking the source as +/// being ready for I/O. +pub fn poll(in : Array[Pollable]) -> Array[UInt] { + let address = @ffi.malloc(in.length() * 4) + for index = 0; index < in.length(); index = index + 1 { + let element : Pollable = in[index] + let base = address + index * 4 + @ffi.store32(base + 0, element.0) + } + let return_area = @ffi.malloc(8) + wasmImportPoll(address, in.length(), return_area) + let array : Array[UInt] = [] + for index2 = 0; index2 < @ffi.load32(return_area + 4); index2 = index2 + 1 { + let base1 = @ffi.load32(return_area + 0) + index2 * 4 + array.push(@ffi.load32(base1 + 0).to_uint()) + } + @ffi.free(@ffi.load32(return_area + 0)) + @ffi.free(address) + @ffi.free(return_area) + return array +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/README.md b/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/README.md new file mode 100644 index 0000000..d5281b6 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/README.md @@ -0,0 +1,5 @@ +WASI I/O is an I/O abstraction API which is currently focused on providing +stream types. + +In the future, the component model is expected to add built-in stream types; +when it does, they are expected to subsume this API. \ No newline at end of file diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/moon.pkg.json b/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/moon.pkg.json new file mode 100644 index 0000000..08aaaf6 --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/moon.pkg.json @@ -0,0 +1,13 @@ +{ + "import": [ + { "path": "wasmcloud/example/ffi", "alias": "ffi" }, + { + "path": "wasmcloud/example/interface/imports/wasi/io/error", + "alias": "error" + }, + { + "path": "wasmcloud/example/interface/imports/wasi/io/poll", + "alias": "poll" + } + ] +} diff --git a/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/top.mbt b/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/top.mbt new file mode 100644 index 0000000..93c96ce --- /dev/null +++ b/components/moonbit/http-hello-world/interface/imports/wasi/io/streams/top.mbt @@ -0,0 +1,601 @@ +// Generated by `wit-bindgen` 0.28.0. DO NOT EDIT! +/// An error for input-stream and output-stream operations. +pub enum StreamError { + LastOperationFailed(@error.Error_) + Closed +} derive(Show, Eq) + +/// An input bytestream. +/// +/// `input-stream`s are *non-blocking* to the extent practical on underlying +/// platforms. I/O operations always return promptly; if fewer bytes are +/// promptly available than requested, they return the number of bytes promptly +/// available, which could even be zero. To wait for data to be available, +/// use the `subscribe` function to obtain a `pollable` which can be polled +/// for using `wasi:io/poll`. +pub type InputStream Int derive(Show, Eq) + +fn wasmImportResourceDropInputStream(resource : Int) = "wasi:io/streams@0.2.0" "[resource-drop]input-stream" + +pub fn InputStream::drop(self : InputStream) -> Unit { + wasmImportResourceDropInputStream(self.0) +} + +/// An output bytestream. +/// +/// `output-stream`s are *non-blocking* to the extent practical on +/// underlying platforms. Except where specified otherwise, I/O operations also +/// always return promptly, after the number of bytes that can be written +/// promptly, which could even be zero. To wait for the stream to be ready to +/// accept data, the `subscribe` function to obtain a `pollable` which can be +/// polled for using `wasi:io/poll`. +/// +/// Dropping an `output-stream` while there's still an active write in +/// progress may result in the data being lost. Before dropping the stream, +/// be sure to fully flush your writes. +pub type OutputStream Int derive(Show, Eq) + +fn wasmImportResourceDropOutputStream(resource : Int) = "wasi:io/streams@0.2.0" "[resource-drop]output-stream" + +pub fn OutputStream::drop(self : OutputStream) -> Unit { + wasmImportResourceDropOutputStream(self.0) +} + +fn wasmImportMethodInputStreamRead(p0 : Int, p1 : Int64, p2 : Int) = "wasi:io/streams@0.2.0" "[method]input-stream.read" + +/// Perform a non-blocking read from the stream. +/// +/// When the source of a `read` is binary data, the bytes from the source +/// are returned verbatim. When the source of a `read` is known to the +/// implementation to be text, bytes containing the UTF-8 encoding of the +/// text are returned. +/// +/// This function returns a list of bytes containing the read data, +/// when successful. The returned list will contain up to `len` bytes; +/// it may return fewer than requested, but not more. The list is +/// empty when no bytes are available for reading at this time. The +/// pollable given by `subscribe` will be ready when more bytes are +/// available. +/// +/// This function fails with a `stream-error` when the operation +/// encounters an error, giving `last-operation-failed`, or when the +/// stream is closed, giving `closed`. +/// +/// When the caller gives a `len` of 0, it represents a request to +/// read 0 bytes. If the stream is still open, this call should +/// succeed and return an empty list, or otherwise fail with `closed`. +/// +/// The `len` parameter is a `u64`, which could represent a list of u8 which +/// is not possible to allocate in wasm32, or not desirable to allocate as +/// as a return value by the callee. The callee may return a list of bytes +/// less than `len` in size while more bytes are available for reading. +pub fn InputStream::read( + self : InputStream, + len : UInt64 +) -> Result[Bytes, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodInputStreamRead(self.0, len.to_int64(), return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => { + let result = @ffi.ptr2bytes(@ffi.load32(return_area + 4)) + Result::Ok(result) + } + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodInputStreamBlockingRead(p0 : Int, p1 : Int64, p2 : Int) = "wasi:io/streams@0.2.0" "[method]input-stream.blocking-read" + +/// Read bytes from a stream, after blocking until at least one byte can +/// be read. Except for blocking, behavior is identical to `read`. +pub fn InputStream::blocking_read( + self : InputStream, + len : UInt64 +) -> Result[Bytes, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodInputStreamBlockingRead(self.0, len.to_int64(), return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => { + let result = @ffi.ptr2bytes(@ffi.load32(return_area + 4)) + Result::Ok(result) + } + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodInputStreamSkip(p0 : Int, p1 : Int64, p2 : Int) = "wasi:io/streams@0.2.0" "[method]input-stream.skip" + +/// Skip bytes from a stream. Returns number of bytes skipped. +/// +/// Behaves identical to `read`, except instead of returning a list +/// of bytes, returns the number of bytes consumed from the stream. +pub fn InputStream::skip( + self : InputStream, + len : UInt64 +) -> Result[UInt64, StreamError] { + let return_area = @ffi.malloc(16) + wasmImportMethodInputStreamSkip(self.0, len.to_int64(), return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(@ffi.load64(return_area + 8).to_uint64()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 8) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 12)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodInputStreamBlockingSkip(p0 : Int, p1 : Int64, p2 : Int) = "wasi:io/streams@0.2.0" "[method]input-stream.blocking-skip" + +/// Skip bytes from a stream, after blocking until at least one byte +/// can be skipped. Except for blocking behavior, identical to `skip`. +pub fn InputStream::blocking_skip( + self : InputStream, + len : UInt64 +) -> Result[UInt64, StreamError] { + let return_area = @ffi.malloc(16) + wasmImportMethodInputStreamBlockingSkip(self.0, len.to_int64(), return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(@ffi.load64(return_area + 8).to_uint64()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 8) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 12)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodInputStreamSubscribe(p0 : Int) -> Int = "wasi:io/streams@0.2.0" "[method]input-stream.subscribe" + +/// Create a `pollable` which will resolve once either the specified stream +/// has bytes available to read or the other end of the stream has been +/// closed. +/// The created `pollable` is a child resource of the `input-stream`. +/// Implementations may trap if the `input-stream` is dropped before +/// all derived `pollable`s created with this function are dropped. +pub fn InputStream::subscribe(self : InputStream) -> @poll.Pollable { + let result : Int = wasmImportMethodInputStreamSubscribe(self.0) + return @poll.Pollable::Pollable(result) +} + +fn wasmImportMethodOutputStreamCheckWrite(p0 : Int, p1 : Int) = "wasi:io/streams@0.2.0" "[method]output-stream.check-write" + +/// Check readiness for writing. This function never blocks. +/// +/// Returns the number of bytes permitted for the next call to `write`, +/// or an error. Calling `write` with more bytes than this function has +/// permitted will trap. +/// +/// When this function returns 0 bytes, the `subscribe` pollable will +/// become ready when this function will report at least 1 byte, or an +/// error. +pub fn OutputStream::check_write( + self : OutputStream +) -> Result[UInt64, StreamError] { + let return_area = @ffi.malloc(16) + wasmImportMethodOutputStreamCheckWrite(self.0, return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(@ffi.load64(return_area + 8).to_uint64()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 8) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 12)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamWrite(p0 : Int, p1 : Int, p2 : Int, p3 : Int) = "wasi:io/streams@0.2.0" "[method]output-stream.write" + +/// Perform a write. This function never blocks. +/// +/// When the destination of a `write` is binary data, the bytes from +/// `contents` are written verbatim. When the destination of a `write` is +/// known to the implementation to be text, the bytes of `contents` are +/// transcoded from UTF-8 into the encoding of the destination and then +/// written. +/// +/// Precondition: check-write gave permit of Ok(n) and contents has a +/// length of less than or equal to n. Otherwise, this function will trap. +/// +/// returns Err(closed) without writing if the stream has closed since +/// the last call to check-write provided a permit. +pub fn OutputStream::write( + self : OutputStream, + contents : Bytes +) -> Result[Unit, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodOutputStreamWrite( + self.0, + @ffi.bytes2ptr(contents), + contents.length(), + return_area, + ) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + ignore(contents) + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamBlockingWriteAndFlush( + p0 : Int, + p1 : Int, + p2 : Int, + p3 : Int +) = "wasi:io/streams@0.2.0" "[method]output-stream.blocking-write-and-flush" + +/// Perform a write of up to 4096 bytes, and then flush the stream. Block +/// until all of these operations are complete, or an error occurs. +/// +/// This is a convenience wrapper around the use of `check-write`, +/// `subscribe`, `write`, and `flush`, and is implemented with the +/// following pseudo-code: +/// +/// ```text +/// let pollable = this.subscribe(); +/// while !contents.is_empty() { +/// // Wait for the stream to become writable +/// pollable.block(); +/// let Ok(n) = this.check-write(); // eliding error handling +/// let len = min(n, contents.len()); +/// let (chunk, rest) = contents.split_at(len); +/// this.write(chunk ); // eliding error handling +/// contents = rest; +/// } +/// this.flush(); +/// // Wait for completion of `flush` +/// pollable.block(); +/// // Check for any errors that arose during `flush` +/// let _ = this.check-write(); // eliding error handling +/// ``` +pub fn OutputStream::blocking_write_and_flush( + self : OutputStream, + contents : Bytes +) -> Result[Unit, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodOutputStreamBlockingWriteAndFlush( + self.0, + @ffi.bytes2ptr(contents), + contents.length(), + return_area, + ) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + ignore(contents) + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamFlush(p0 : Int, p1 : Int) = "wasi:io/streams@0.2.0" "[method]output-stream.flush" + +/// Request to flush buffered output. This function never blocks. +/// +/// This tells the output-stream that the caller intends any buffered +/// output to be flushed. the output which is expected to be flushed +/// is all that has been passed to `write` prior to this call. +/// +/// Upon calling this function, the `output-stream` will not accept any +/// writes (`check-write` will return `ok(0)`) until the flush has +/// completed. The `subscribe` pollable will become ready when the +/// flush has completed and the stream can accept more writes. +pub fn OutputStream::flush(self : OutputStream) -> Result[Unit, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodOutputStreamFlush(self.0, return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamBlockingFlush(p0 : Int, p1 : Int) = "wasi:io/streams@0.2.0" "[method]output-stream.blocking-flush" + +/// Request to flush buffered output, and block until flush completes +/// and stream is ready for writing again. +pub fn OutputStream::blocking_flush( + self : OutputStream +) -> Result[Unit, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodOutputStreamBlockingFlush(self.0, return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamSubscribe(p0 : Int) -> Int = "wasi:io/streams@0.2.0" "[method]output-stream.subscribe" + +/// Create a `pollable` which will resolve once the output-stream +/// is ready for more writing, or an error has occurred. When this +/// pollable is ready, `check-write` will return `ok(n)` with n>0, or an +/// error. +/// +/// If the stream is closed, this pollable is always ready immediately. +/// +/// The created `pollable` is a child resource of the `output-stream`. +/// Implementations may trap if the `output-stream` is dropped before +/// all derived `pollable`s created with this function are dropped. +pub fn OutputStream::subscribe(self : OutputStream) -> @poll.Pollable { + let result : Int = wasmImportMethodOutputStreamSubscribe(self.0) + return @poll.Pollable::Pollable(result) +} + +fn wasmImportMethodOutputStreamWriteZeroes(p0 : Int, p1 : Int64, p2 : Int) = "wasi:io/streams@0.2.0" "[method]output-stream.write-zeroes" + +/// Write zeroes to a stream. +/// +/// This should be used precisely like `write` with the exact same +/// preconditions (must use check-write first), but instead of +/// passing a list of bytes, you simply pass the number of zero-bytes +/// that should be written. +pub fn OutputStream::write_zeroes( + self : OutputStream, + len : UInt64 +) -> Result[Unit, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodOutputStreamWriteZeroes(self.0, len.to_int64(), return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamBlockingWriteZeroesAndFlush( + p0 : Int, + p1 : Int64, + p2 : Int +) = "wasi:io/streams@0.2.0" "[method]output-stream.blocking-write-zeroes-and-flush" + +/// Perform a write of up to 4096 zeroes, and then flush the stream. +/// Block until all of these operations are complete, or an error +/// occurs. +/// +/// This is a convenience wrapper around the use of `check-write`, +/// `subscribe`, `write-zeroes`, and `flush`, and is implemented with +/// the following pseudo-code: +/// +/// ```text +/// let pollable = this.subscribe(); +/// while num_zeroes != 0 { +/// // Wait for the stream to become writable +/// pollable.block(); +/// let Ok(n) = this.check-write(); // eliding error handling +/// let len = min(n, num_zeroes); +/// this.write-zeroes(len); // eliding error handling +/// num_zeroes -= len; +/// } +/// this.flush(); +/// // Wait for completion of `flush` +/// pollable.block(); +/// // Check for any errors that arose during `flush` +/// let _ = this.check-write(); // eliding error handling +/// ``` +pub fn OutputStream::blocking_write_zeroes_and_flush( + self : OutputStream, + len : UInt64 +) -> Result[Unit, StreamError] { + let return_area = @ffi.malloc(12) + wasmImportMethodOutputStreamBlockingWriteZeroesAndFlush( + self.0, + len.to_int64(), + return_area, + ) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 4) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 8)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamSplice(p0 : Int, p1 : Int, p2 : Int64, p3 : Int) = "wasi:io/streams@0.2.0" "[method]output-stream.splice" + +/// Read from one stream and write to another. +/// +/// The behavior of splice is equivalent to: +/// 1. calling `check-write` on the `output-stream` +/// 2. calling `read` on the `input-stream` with the smaller of the +/// `check-write` permitted length and the `len` provided to `splice` +/// 3. calling `write` on the `output-stream` with that read data. +/// +/// Any error reported by the call to `check-write`, `read`, or +/// `write` ends the splice and reports that error. +/// +/// This function returns the number of bytes transferred; it may be less +/// than `len`. +pub fn OutputStream::splice( + self : OutputStream, + src : InputStream, + len : UInt64 +) -> Result[UInt64, StreamError] { + let return_area = @ffi.malloc(16) + wasmImportMethodOutputStreamSplice(self.0, src.0, len.to_int64(), return_area) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(@ffi.load64(return_area + 8).to_uint64()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 8) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 12)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} + +fn wasmImportMethodOutputStreamBlockingSplice( + p0 : Int, + p1 : Int, + p2 : Int64, + p3 : Int +) = "wasi:io/streams@0.2.0" "[method]output-stream.blocking-splice" + +/// Read from one stream and write to another, with blocking. +/// +/// This is similar to `splice`, except that it blocks until the +/// `output-stream` is ready for writing, and the `input-stream` +/// is ready for reading, before performing the `splice`. +pub fn OutputStream::blocking_splice( + self : OutputStream, + src : InputStream, + len : UInt64 +) -> Result[UInt64, StreamError] { + let return_area = @ffi.malloc(16) + wasmImportMethodOutputStreamBlockingSplice( + self.0, + src.0, + len.to_int64(), + return_area, + ) + let lifted6 = match @ffi.load8_u(return_area + 0) { + 0 => Result::Ok(@ffi.load64(return_area + 8).to_uint64()) + 1 => { + let lifted = match @ffi.load8_u(return_area + 8) { + 0 => + StreamError::LastOperationFailed( + @error.Error_::Error_(@ffi.load32(return_area + 12)), + ) + 1 => StreamError::Closed + _ => panic() + } + Result::Err(lifted) + } + _ => panic() + } + @ffi.free(return_area) + return lifted6 +} diff --git a/components/moonbit/http-hello-world/moon.mod.json b/components/moonbit/http-hello-world/moon.mod.json new file mode 100644 index 0000000..4dfd42d --- /dev/null +++ b/components/moonbit/http-hello-world/moon.mod.json @@ -0,0 +1 @@ +{ "name": "wasmcloud/example" } diff --git a/components/moonbit/http-hello-world/wadm.yaml b/components/moonbit/http-hello-world/wadm.yaml new file mode 100644 index 0000000..891f0ef --- /dev/null +++ b/components/moonbit/http-hello-world/wadm.yaml @@ -0,0 +1,31 @@ +apiVersion: core.oam.dev/v1beta1 +kind: Application +metadata: + name: moonbit-http + annotations: + description: HTTP hello world demo with a component written in Moonbit + version: v0.0.1 + labels: + generated-by: wit2wadm +spec: + components: + - name: moonbit-http + type: component + properties: + image: file://./build/gen.wasm + traits: + - type: spreadscaler + properties: + instances: 100 + - name: wasi:http-source + type: capability + properties: + image: ghcr.io/wasmcloud/http-server:canary + traits: + - type: link + properties: + target: moonbit-http + namespace: wasi + package: http + interfaces: + - incoming-handler diff --git a/components/moonbit/http-hello-world/wasmcloud.toml b/components/moonbit/http-hello-world/wasmcloud.toml new file mode 100644 index 0000000..20d7215 --- /dev/null +++ b/components/moonbit/http-hello-world/wasmcloud.toml @@ -0,0 +1,11 @@ +name = "http-hello-world" +version = "0.1.0" +language = "moonbit" +type = "component" + +[component] +wit_world = "hello" +wasm_target = "wasm32-wasi-preview2" +build_command = "./build.sh" +build_artifact = "target/wasm/release/build/gen/gen.wasm" +destination = "build/gen.wasm" diff --git a/components/moonbit/http-hello-world/wit/deps.lock b/components/moonbit/http-hello-world/wit/deps.lock new file mode 100644 index 0000000..5bd958b --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps.lock @@ -0,0 +1,29 @@ +[cli] +sha256 = "285865a31d777181b075f39e92bcfe59c89cd6bacce660be1b9a627646956258" +sha512 = "da2622210a9e3eea82b99f1a5b8a44ce5443d009cb943f7bca0bf9cf4360829b289913d7ee727c011f0f72994ea7dc8e661ebcc0a6b34b587297d80cd9b3f7e8" + +[clocks] +sha256 = "468b4d12892fe926b8eb5d398dbf579d566c93231fa44f415440572c695b7613" +sha512 = "e6b53a07221f1413953c9797c68f08b815fdaebf66419bbc1ea3e8b7dece73731062693634731f311a03957b268cf9cc509c518bd15e513c318aa04a8459b93a" + +[filesystem] +sha256 = "498c465cfd04587db40f970fff2185daa597d074c20b68a8bcbae558f261499b" +sha512 = "ead452f9b7bfb88593a502ec00d76d4228003d51c40fd0408aebc32d35c94673551b00230d730873361567cc209ec218c41fb4e95bad194268592c49e7964347" + +[http] +url = "https://github.com/WebAssembly/wasi-http/archive/v0.2.0.tar.gz" +sha256 = "8f44402bde16c48e28c47dc53eab0b26af5b3b3482a1852cf77673e0880ba1c1" +sha512 = "760695f9a25c25bf75a25b731cb21c3bda9e288e450edda823324ecbc73d5d798bbb5de2edad999566980836f037463ee9e57d61789d04b3f3e381475b1a9a0f" +deps = ["cli", "clocks", "filesystem", "io", "random", "sockets"] + +[io] +sha256 = "7210e5653539a15478f894d4da24cc69d61924cbcba21d2804d69314a88e5a4c" +sha512 = "49184a1b0945a889abd52d25271172ed3dc2db6968fcdddb1bab7ee0081f4a3eeee0977ad2291126a37631c0d86eeea75d822fa8af224c422134500bf9f0f2bb" + +[random] +sha256 = "7371d03c037d924caba2587fb2e7c5773a0d3c5fcecbf7971e0e0ba57973c53d" +sha512 = "964c4e8925a53078e4d94ba907b54f89a0b7e154f46823a505391471466c17f53c8692682e5c85771712acd88b348686173fc07c53a3cfe3d301b8cd8ddd0de4" + +[sockets] +sha256 = "622bd28bbeb43736375dc02bd003fd3a016ff8ee91e14bab488325c6b38bf966" +sha512 = "5a63c1f36de0c4548e1d2297bdbededb28721cbad94ef7825c469eae29d7451c97e00b4c1d6730ee1ec0c4a5aac922961a2795762d4a0c3bb54e30a391a84bae" diff --git a/components/moonbit/http-hello-world/wit/deps.toml b/components/moonbit/http-hello-world/wit/deps.toml new file mode 100644 index 0000000..1b375ee --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps.toml @@ -0,0 +1 @@ +http = "https://github.com/WebAssembly/wasi-http/archive/v0.2.0.tar.gz" diff --git a/components/moonbit/http-hello-world/wit/deps/cli/command.wit b/components/moonbit/http-hello-world/wit/deps/cli/command.wit new file mode 100644 index 0000000..d8005bd --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/command.wit @@ -0,0 +1,7 @@ +package wasi:cli@0.2.0; + +world command { + include imports; + + export run; +} diff --git a/components/moonbit/http-hello-world/wit/deps/cli/environment.wit b/components/moonbit/http-hello-world/wit/deps/cli/environment.wit new file mode 100644 index 0000000..7006523 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/environment.wit @@ -0,0 +1,18 @@ +interface environment { + /// Get the POSIX-style environment variables. + /// + /// Each environment variable is provided as a pair of string variable names + /// and string value. + /// + /// Morally, these are a value import, but until value imports are available + /// in the component model, this import function should return the same + /// values each time it is called. + get-environment: func() -> list>; + + /// Get the POSIX-style arguments to the program. + get-arguments: func() -> list; + + /// Return a path that programs should use as their initial current working + /// directory, interpreting `.` as shorthand for this. + initial-cwd: func() -> option; +} diff --git a/components/moonbit/http-hello-world/wit/deps/cli/exit.wit b/components/moonbit/http-hello-world/wit/deps/cli/exit.wit new file mode 100644 index 0000000..d0c2b82 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/exit.wit @@ -0,0 +1,4 @@ +interface exit { + /// Exit the current instance and any linked instances. + exit: func(status: result); +} diff --git a/components/moonbit/http-hello-world/wit/deps/cli/imports.wit b/components/moonbit/http-hello-world/wit/deps/cli/imports.wit new file mode 100644 index 0000000..083b84a --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/imports.wit @@ -0,0 +1,20 @@ +package wasi:cli@0.2.0; + +world imports { + include wasi:clocks/imports@0.2.0; + include wasi:filesystem/imports@0.2.0; + include wasi:sockets/imports@0.2.0; + include wasi:random/imports@0.2.0; + include wasi:io/imports@0.2.0; + + import environment; + import exit; + import stdin; + import stdout; + import stderr; + import terminal-input; + import terminal-output; + import terminal-stdin; + import terminal-stdout; + import terminal-stderr; +} diff --git a/components/moonbit/http-hello-world/wit/deps/cli/run.wit b/components/moonbit/http-hello-world/wit/deps/cli/run.wit new file mode 100644 index 0000000..a70ee8c --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/run.wit @@ -0,0 +1,4 @@ +interface run { + /// Run the program. + run: func() -> result; +} diff --git a/components/moonbit/http-hello-world/wit/deps/cli/stdio.wit b/components/moonbit/http-hello-world/wit/deps/cli/stdio.wit new file mode 100644 index 0000000..31ef35b --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/stdio.wit @@ -0,0 +1,17 @@ +interface stdin { + use wasi:io/streams@0.2.0.{input-stream}; + + get-stdin: func() -> input-stream; +} + +interface stdout { + use wasi:io/streams@0.2.0.{output-stream}; + + get-stdout: func() -> output-stream; +} + +interface stderr { + use wasi:io/streams@0.2.0.{output-stream}; + + get-stderr: func() -> output-stream; +} diff --git a/components/moonbit/http-hello-world/wit/deps/cli/terminal.wit b/components/moonbit/http-hello-world/wit/deps/cli/terminal.wit new file mode 100644 index 0000000..38c724e --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/cli/terminal.wit @@ -0,0 +1,49 @@ +/// Terminal input. +/// +/// In the future, this may include functions for disabling echoing, +/// disabling input buffering so that keyboard events are sent through +/// immediately, querying supported features, and so on. +interface terminal-input { + /// The input side of a terminal. + resource terminal-input; +} + +/// Terminal output. +/// +/// In the future, this may include functions for querying the terminal +/// size, being notified of terminal size changes, querying supported +/// features, and so on. +interface terminal-output { + /// The output side of a terminal. + resource terminal-output; +} + +/// An interface providing an optional `terminal-input` for stdin as a +/// link-time authority. +interface terminal-stdin { + use terminal-input.{terminal-input}; + + /// If stdin is connected to a terminal, return a `terminal-input` handle + /// allowing further interaction with it. + get-terminal-stdin: func() -> option; +} + +/// An interface providing an optional `terminal-output` for stdout as a +/// link-time authority. +interface terminal-stdout { + use terminal-output.{terminal-output}; + + /// If stdout is connected to a terminal, return a `terminal-output` handle + /// allowing further interaction with it. + get-terminal-stdout: func() -> option; +} + +/// An interface providing an optional `terminal-output` for stderr as a +/// link-time authority. +interface terminal-stderr { + use terminal-output.{terminal-output}; + + /// If stderr is connected to a terminal, return a `terminal-output` handle + /// allowing further interaction with it. + get-terminal-stderr: func() -> option; +} diff --git a/components/moonbit/http-hello-world/wit/deps/clocks/monotonic-clock.wit b/components/moonbit/http-hello-world/wit/deps/clocks/monotonic-clock.wit new file mode 100644 index 0000000..4e4dc3a --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/clocks/monotonic-clock.wit @@ -0,0 +1,45 @@ +package wasi:clocks@0.2.0; +/// WASI Monotonic Clock is a clock API intended to let users measure elapsed +/// time. +/// +/// It is intended to be portable at least between Unix-family platforms and +/// Windows. +/// +/// A monotonic clock is a clock which has an unspecified initial value, and +/// successive reads of the clock will produce non-decreasing values. +/// +/// It is intended for measuring elapsed time. +interface monotonic-clock { + use wasi:io/poll@0.2.0.{pollable}; + + /// An instant in time, in nanoseconds. An instant is relative to an + /// unspecified initial value, and can only be compared to instances from + /// the same monotonic-clock. + type instant = u64; + + /// A duration of time, in nanoseconds. + type duration = u64; + + /// Read the current value of the clock. + /// + /// The clock is monotonic, therefore calling this function repeatedly will + /// produce a sequence of non-decreasing values. + now: func() -> instant; + + /// Query the resolution of the clock. Returns the duration of time + /// corresponding to a clock tick. + resolution: func() -> duration; + + /// Create a `pollable` which will resolve once the specified instant + /// occured. + subscribe-instant: func( + when: instant, + ) -> pollable; + + /// Create a `pollable` which will resolve once the given duration has + /// elapsed, starting at the time at which this function was called. + /// occured. + subscribe-duration: func( + when: duration, + ) -> pollable; +} diff --git a/components/moonbit/http-hello-world/wit/deps/clocks/wall-clock.wit b/components/moonbit/http-hello-world/wit/deps/clocks/wall-clock.wit new file mode 100644 index 0000000..440ca0f --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/clocks/wall-clock.wit @@ -0,0 +1,42 @@ +package wasi:clocks@0.2.0; +/// WASI Wall Clock is a clock API intended to let users query the current +/// time. The name "wall" makes an analogy to a "clock on the wall", which +/// is not necessarily monotonic as it may be reset. +/// +/// It is intended to be portable at least between Unix-family platforms and +/// Windows. +/// +/// A wall clock is a clock which measures the date and time according to +/// some external reference. +/// +/// External references may be reset, so this clock is not necessarily +/// monotonic, making it unsuitable for measuring elapsed time. +/// +/// It is intended for reporting the current date and time for humans. +interface wall-clock { + /// A time and date in seconds plus nanoseconds. + record datetime { + seconds: u64, + nanoseconds: u32, + } + + /// Read the current value of the clock. + /// + /// This clock is not monotonic, therefore calling this function repeatedly + /// will not necessarily produce a sequence of non-decreasing values. + /// + /// The returned timestamps represent the number of seconds since + /// 1970-01-01T00:00:00Z, also known as [POSIX's Seconds Since the Epoch], + /// also known as [Unix Time]. + /// + /// The nanoseconds field of the output is always less than 1000000000. + /// + /// [POSIX's Seconds Since the Epoch]: https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xbd_chap04.html#tag_21_04_16 + /// [Unix Time]: https://en.wikipedia.org/wiki/Unix_time + now: func() -> datetime; + + /// Query the resolution of the clock. + /// + /// The nanoseconds field of the output is always less than 1000000000. + resolution: func() -> datetime; +} diff --git a/components/moonbit/http-hello-world/wit/deps/clocks/world.wit b/components/moonbit/http-hello-world/wit/deps/clocks/world.wit new file mode 100644 index 0000000..c022457 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/clocks/world.wit @@ -0,0 +1,6 @@ +package wasi:clocks@0.2.0; + +world imports { + import monotonic-clock; + import wall-clock; +} diff --git a/components/moonbit/http-hello-world/wit/deps/filesystem/preopens.wit b/components/moonbit/http-hello-world/wit/deps/filesystem/preopens.wit new file mode 100644 index 0000000..da801f6 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/filesystem/preopens.wit @@ -0,0 +1,8 @@ +package wasi:filesystem@0.2.0; + +interface preopens { + use types.{descriptor}; + + /// Return the set of preopened directories, and their path. + get-directories: func() -> list>; +} diff --git a/components/moonbit/http-hello-world/wit/deps/filesystem/types.wit b/components/moonbit/http-hello-world/wit/deps/filesystem/types.wit new file mode 100644 index 0000000..11108fc --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/filesystem/types.wit @@ -0,0 +1,634 @@ +package wasi:filesystem@0.2.0; +/// WASI filesystem is a filesystem API primarily intended to let users run WASI +/// programs that access their files on their existing filesystems, without +/// significant overhead. +/// +/// It is intended to be roughly portable between Unix-family platforms and +/// Windows, though it does not hide many of the major differences. +/// +/// Paths are passed as interface-type `string`s, meaning they must consist of +/// a sequence of Unicode Scalar Values (USVs). Some filesystems may contain +/// paths which are not accessible by this API. +/// +/// The directory separator in WASI is always the forward-slash (`/`). +/// +/// All paths in WASI are relative paths, and are interpreted relative to a +/// `descriptor` referring to a base directory. If a `path` argument to any WASI +/// function starts with `/`, or if any step of resolving a `path`, including +/// `..` and symbolic link steps, reaches a directory outside of the base +/// directory, or reaches a symlink to an absolute or rooted path in the +/// underlying filesystem, the function fails with `error-code::not-permitted`. +/// +/// For more information about WASI path resolution and sandboxing, see +/// [WASI filesystem path resolution]. +/// +/// [WASI filesystem path resolution]: https://github.com/WebAssembly/wasi-filesystem/blob/main/path-resolution.md +interface types { + use wasi:io/streams@0.2.0.{input-stream, output-stream, error}; + use wasi:clocks/wall-clock@0.2.0.{datetime}; + + /// File size or length of a region within a file. + type filesize = u64; + + /// The type of a filesystem object referenced by a descriptor. + /// + /// Note: This was called `filetype` in earlier versions of WASI. + enum descriptor-type { + /// The type of the descriptor or file is unknown or is different from + /// any of the other types specified. + unknown, + /// The descriptor refers to a block device inode. + block-device, + /// The descriptor refers to a character device inode. + character-device, + /// The descriptor refers to a directory inode. + directory, + /// The descriptor refers to a named pipe. + fifo, + /// The file refers to a symbolic link inode. + symbolic-link, + /// The descriptor refers to a regular file inode. + regular-file, + /// The descriptor refers to a socket. + socket, + } + + /// Descriptor flags. + /// + /// Note: This was called `fdflags` in earlier versions of WASI. + flags descriptor-flags { + /// Read mode: Data can be read. + read, + /// Write mode: Data can be written to. + write, + /// Request that writes be performed according to synchronized I/O file + /// integrity completion. The data stored in the file and the file's + /// metadata are synchronized. This is similar to `O_SYNC` in POSIX. + /// + /// The precise semantics of this operation have not yet been defined for + /// WASI. At this time, it should be interpreted as a request, and not a + /// requirement. + file-integrity-sync, + /// Request that writes be performed according to synchronized I/O data + /// integrity completion. Only the data stored in the file is + /// synchronized. This is similar to `O_DSYNC` in POSIX. + /// + /// The precise semantics of this operation have not yet been defined for + /// WASI. At this time, it should be interpreted as a request, and not a + /// requirement. + data-integrity-sync, + /// Requests that reads be performed at the same level of integrety + /// requested for writes. This is similar to `O_RSYNC` in POSIX. + /// + /// The precise semantics of this operation have not yet been defined for + /// WASI. At this time, it should be interpreted as a request, and not a + /// requirement. + requested-write-sync, + /// Mutating directories mode: Directory contents may be mutated. + /// + /// When this flag is unset on a descriptor, operations using the + /// descriptor which would create, rename, delete, modify the data or + /// metadata of filesystem objects, or obtain another handle which + /// would permit any of those, shall fail with `error-code::read-only` if + /// they would otherwise succeed. + /// + /// This may only be set on directories. + mutate-directory, + } + + /// File attributes. + /// + /// Note: This was called `filestat` in earlier versions of WASI. + record descriptor-stat { + /// File type. + %type: descriptor-type, + /// Number of hard links to the file. + link-count: link-count, + /// For regular files, the file size in bytes. For symbolic links, the + /// length in bytes of the pathname contained in the symbolic link. + size: filesize, + /// Last data access timestamp. + /// + /// If the `option` is none, the platform doesn't maintain an access + /// timestamp for this file. + data-access-timestamp: option, + /// Last data modification timestamp. + /// + /// If the `option` is none, the platform doesn't maintain a + /// modification timestamp for this file. + data-modification-timestamp: option, + /// Last file status-change timestamp. + /// + /// If the `option` is none, the platform doesn't maintain a + /// status-change timestamp for this file. + status-change-timestamp: option, + } + + /// Flags determining the method of how paths are resolved. + flags path-flags { + /// As long as the resolved path corresponds to a symbolic link, it is + /// expanded. + symlink-follow, + } + + /// Open flags used by `open-at`. + flags open-flags { + /// Create file if it does not exist, similar to `O_CREAT` in POSIX. + create, + /// Fail if not a directory, similar to `O_DIRECTORY` in POSIX. + directory, + /// Fail if file already exists, similar to `O_EXCL` in POSIX. + exclusive, + /// Truncate file to size 0, similar to `O_TRUNC` in POSIX. + truncate, + } + + /// Number of hard links to an inode. + type link-count = u64; + + /// When setting a timestamp, this gives the value to set it to. + variant new-timestamp { + /// Leave the timestamp set to its previous value. + no-change, + /// Set the timestamp to the current time of the system clock associated + /// with the filesystem. + now, + /// Set the timestamp to the given value. + timestamp(datetime), + } + + /// A directory entry. + record directory-entry { + /// The type of the file referred to by this directory entry. + %type: descriptor-type, + + /// The name of the object. + name: string, + } + + /// Error codes returned by functions, similar to `errno` in POSIX. + /// Not all of these error codes are returned by the functions provided by this + /// API; some are used in higher-level library layers, and others are provided + /// merely for alignment with POSIX. + enum error-code { + /// Permission denied, similar to `EACCES` in POSIX. + access, + /// Resource unavailable, or operation would block, similar to `EAGAIN` and `EWOULDBLOCK` in POSIX. + would-block, + /// Connection already in progress, similar to `EALREADY` in POSIX. + already, + /// Bad descriptor, similar to `EBADF` in POSIX. + bad-descriptor, + /// Device or resource busy, similar to `EBUSY` in POSIX. + busy, + /// Resource deadlock would occur, similar to `EDEADLK` in POSIX. + deadlock, + /// Storage quota exceeded, similar to `EDQUOT` in POSIX. + quota, + /// File exists, similar to `EEXIST` in POSIX. + exist, + /// File too large, similar to `EFBIG` in POSIX. + file-too-large, + /// Illegal byte sequence, similar to `EILSEQ` in POSIX. + illegal-byte-sequence, + /// Operation in progress, similar to `EINPROGRESS` in POSIX. + in-progress, + /// Interrupted function, similar to `EINTR` in POSIX. + interrupted, + /// Invalid argument, similar to `EINVAL` in POSIX. + invalid, + /// I/O error, similar to `EIO` in POSIX. + io, + /// Is a directory, similar to `EISDIR` in POSIX. + is-directory, + /// Too many levels of symbolic links, similar to `ELOOP` in POSIX. + loop, + /// Too many links, similar to `EMLINK` in POSIX. + too-many-links, + /// Message too large, similar to `EMSGSIZE` in POSIX. + message-size, + /// Filename too long, similar to `ENAMETOOLONG` in POSIX. + name-too-long, + /// No such device, similar to `ENODEV` in POSIX. + no-device, + /// No such file or directory, similar to `ENOENT` in POSIX. + no-entry, + /// No locks available, similar to `ENOLCK` in POSIX. + no-lock, + /// Not enough space, similar to `ENOMEM` in POSIX. + insufficient-memory, + /// No space left on device, similar to `ENOSPC` in POSIX. + insufficient-space, + /// Not a directory or a symbolic link to a directory, similar to `ENOTDIR` in POSIX. + not-directory, + /// Directory not empty, similar to `ENOTEMPTY` in POSIX. + not-empty, + /// State not recoverable, similar to `ENOTRECOVERABLE` in POSIX. + not-recoverable, + /// Not supported, similar to `ENOTSUP` and `ENOSYS` in POSIX. + unsupported, + /// Inappropriate I/O control operation, similar to `ENOTTY` in POSIX. + no-tty, + /// No such device or address, similar to `ENXIO` in POSIX. + no-such-device, + /// Value too large to be stored in data type, similar to `EOVERFLOW` in POSIX. + overflow, + /// Operation not permitted, similar to `EPERM` in POSIX. + not-permitted, + /// Broken pipe, similar to `EPIPE` in POSIX. + pipe, + /// Read-only file system, similar to `EROFS` in POSIX. + read-only, + /// Invalid seek, similar to `ESPIPE` in POSIX. + invalid-seek, + /// Text file busy, similar to `ETXTBSY` in POSIX. + text-file-busy, + /// Cross-device link, similar to `EXDEV` in POSIX. + cross-device, + } + + /// File or memory access pattern advisory information. + enum advice { + /// The application has no advice to give on its behavior with respect + /// to the specified data. + normal, + /// The application expects to access the specified data sequentially + /// from lower offsets to higher offsets. + sequential, + /// The application expects to access the specified data in a random + /// order. + random, + /// The application expects to access the specified data in the near + /// future. + will-need, + /// The application expects that it will not access the specified data + /// in the near future. + dont-need, + /// The application expects to access the specified data once and then + /// not reuse it thereafter. + no-reuse, + } + + /// A 128-bit hash value, split into parts because wasm doesn't have a + /// 128-bit integer type. + record metadata-hash-value { + /// 64 bits of a 128-bit hash value. + lower: u64, + /// Another 64 bits of a 128-bit hash value. + upper: u64, + } + + /// A descriptor is a reference to a filesystem object, which may be a file, + /// directory, named pipe, special file, or other object on which filesystem + /// calls may be made. + resource descriptor { + /// Return a stream for reading from a file, if available. + /// + /// May fail with an error-code describing why the file cannot be read. + /// + /// Multiple read, write, and append streams may be active on the same open + /// file and they do not interfere with each other. + /// + /// Note: This allows using `read-stream`, which is similar to `read` in POSIX. + read-via-stream: func( + /// The offset within the file at which to start reading. + offset: filesize, + ) -> result; + + /// Return a stream for writing to a file, if available. + /// + /// May fail with an error-code describing why the file cannot be written. + /// + /// Note: This allows using `write-stream`, which is similar to `write` in + /// POSIX. + write-via-stream: func( + /// The offset within the file at which to start writing. + offset: filesize, + ) -> result; + + /// Return a stream for appending to a file, if available. + /// + /// May fail with an error-code describing why the file cannot be appended. + /// + /// Note: This allows using `write-stream`, which is similar to `write` with + /// `O_APPEND` in in POSIX. + append-via-stream: func() -> result; + + /// Provide file advisory information on a descriptor. + /// + /// This is similar to `posix_fadvise` in POSIX. + advise: func( + /// The offset within the file to which the advisory applies. + offset: filesize, + /// The length of the region to which the advisory applies. + length: filesize, + /// The advice. + advice: advice + ) -> result<_, error-code>; + + /// Synchronize the data of a file to disk. + /// + /// This function succeeds with no effect if the file descriptor is not + /// opened for writing. + /// + /// Note: This is similar to `fdatasync` in POSIX. + sync-data: func() -> result<_, error-code>; + + /// Get flags associated with a descriptor. + /// + /// Note: This returns similar flags to `fcntl(fd, F_GETFL)` in POSIX. + /// + /// Note: This returns the value that was the `fs_flags` value returned + /// from `fdstat_get` in earlier versions of WASI. + get-flags: func() -> result; + + /// Get the dynamic type of a descriptor. + /// + /// Note: This returns the same value as the `type` field of the `fd-stat` + /// returned by `stat`, `stat-at` and similar. + /// + /// Note: This returns similar flags to the `st_mode & S_IFMT` value provided + /// by `fstat` in POSIX. + /// + /// Note: This returns the value that was the `fs_filetype` value returned + /// from `fdstat_get` in earlier versions of WASI. + get-type: func() -> result; + + /// Adjust the size of an open file. If this increases the file's size, the + /// extra bytes are filled with zeros. + /// + /// Note: This was called `fd_filestat_set_size` in earlier versions of WASI. + set-size: func(size: filesize) -> result<_, error-code>; + + /// Adjust the timestamps of an open file or directory. + /// + /// Note: This is similar to `futimens` in POSIX. + /// + /// Note: This was called `fd_filestat_set_times` in earlier versions of WASI. + set-times: func( + /// The desired values of the data access timestamp. + data-access-timestamp: new-timestamp, + /// The desired values of the data modification timestamp. + data-modification-timestamp: new-timestamp, + ) -> result<_, error-code>; + + /// Read from a descriptor, without using and updating the descriptor's offset. + /// + /// This function returns a list of bytes containing the data that was + /// read, along with a bool which, when true, indicates that the end of the + /// file was reached. The returned list will contain up to `length` bytes; it + /// may return fewer than requested, if the end of the file is reached or + /// if the I/O operation is interrupted. + /// + /// In the future, this may change to return a `stream`. + /// + /// Note: This is similar to `pread` in POSIX. + read: func( + /// The maximum number of bytes to read. + length: filesize, + /// The offset within the file at which to read. + offset: filesize, + ) -> result, bool>, error-code>; + + /// Write to a descriptor, without using and updating the descriptor's offset. + /// + /// It is valid to write past the end of a file; the file is extended to the + /// extent of the write, with bytes between the previous end and the start of + /// the write set to zero. + /// + /// In the future, this may change to take a `stream`. + /// + /// Note: This is similar to `pwrite` in POSIX. + write: func( + /// Data to write + buffer: list, + /// The offset within the file at which to write. + offset: filesize, + ) -> result; + + /// Read directory entries from a directory. + /// + /// On filesystems where directories contain entries referring to themselves + /// and their parents, often named `.` and `..` respectively, these entries + /// are omitted. + /// + /// This always returns a new stream which starts at the beginning of the + /// directory. Multiple streams may be active on the same directory, and they + /// do not interfere with each other. + read-directory: func() -> result; + + /// Synchronize the data and metadata of a file to disk. + /// + /// This function succeeds with no effect if the file descriptor is not + /// opened for writing. + /// + /// Note: This is similar to `fsync` in POSIX. + sync: func() -> result<_, error-code>; + + /// Create a directory. + /// + /// Note: This is similar to `mkdirat` in POSIX. + create-directory-at: func( + /// The relative path at which to create the directory. + path: string, + ) -> result<_, error-code>; + + /// Return the attributes of an open file or directory. + /// + /// Note: This is similar to `fstat` in POSIX, except that it does not return + /// device and inode information. For testing whether two descriptors refer to + /// the same underlying filesystem object, use `is-same-object`. To obtain + /// additional data that can be used do determine whether a file has been + /// modified, use `metadata-hash`. + /// + /// Note: This was called `fd_filestat_get` in earlier versions of WASI. + stat: func() -> result; + + /// Return the attributes of a file or directory. + /// + /// Note: This is similar to `fstatat` in POSIX, except that it does not + /// return device and inode information. See the `stat` description for a + /// discussion of alternatives. + /// + /// Note: This was called `path_filestat_get` in earlier versions of WASI. + stat-at: func( + /// Flags determining the method of how the path is resolved. + path-flags: path-flags, + /// The relative path of the file or directory to inspect. + path: string, + ) -> result; + + /// Adjust the timestamps of a file or directory. + /// + /// Note: This is similar to `utimensat` in POSIX. + /// + /// Note: This was called `path_filestat_set_times` in earlier versions of + /// WASI. + set-times-at: func( + /// Flags determining the method of how the path is resolved. + path-flags: path-flags, + /// The relative path of the file or directory to operate on. + path: string, + /// The desired values of the data access timestamp. + data-access-timestamp: new-timestamp, + /// The desired values of the data modification timestamp. + data-modification-timestamp: new-timestamp, + ) -> result<_, error-code>; + + /// Create a hard link. + /// + /// Note: This is similar to `linkat` in POSIX. + link-at: func( + /// Flags determining the method of how the path is resolved. + old-path-flags: path-flags, + /// The relative source path from which to link. + old-path: string, + /// The base directory for `new-path`. + new-descriptor: borrow, + /// The relative destination path at which to create the hard link. + new-path: string, + ) -> result<_, error-code>; + + /// Open a file or directory. + /// + /// The returned descriptor is not guaranteed to be the lowest-numbered + /// descriptor not currently open/ it is randomized to prevent applications + /// from depending on making assumptions about indexes, since this is + /// error-prone in multi-threaded contexts. The returned descriptor is + /// guaranteed to be less than 2**31. + /// + /// If `flags` contains `descriptor-flags::mutate-directory`, and the base + /// descriptor doesn't have `descriptor-flags::mutate-directory` set, + /// `open-at` fails with `error-code::read-only`. + /// + /// If `flags` contains `write` or `mutate-directory`, or `open-flags` + /// contains `truncate` or `create`, and the base descriptor doesn't have + /// `descriptor-flags::mutate-directory` set, `open-at` fails with + /// `error-code::read-only`. + /// + /// Note: This is similar to `openat` in POSIX. + open-at: func( + /// Flags determining the method of how the path is resolved. + path-flags: path-flags, + /// The relative path of the object to open. + path: string, + /// The method by which to open the file. + open-flags: open-flags, + /// Flags to use for the resulting descriptor. + %flags: descriptor-flags, + ) -> result; + + /// Read the contents of a symbolic link. + /// + /// If the contents contain an absolute or rooted path in the underlying + /// filesystem, this function fails with `error-code::not-permitted`. + /// + /// Note: This is similar to `readlinkat` in POSIX. + readlink-at: func( + /// The relative path of the symbolic link from which to read. + path: string, + ) -> result; + + /// Remove a directory. + /// + /// Return `error-code::not-empty` if the directory is not empty. + /// + /// Note: This is similar to `unlinkat(fd, path, AT_REMOVEDIR)` in POSIX. + remove-directory-at: func( + /// The relative path to a directory to remove. + path: string, + ) -> result<_, error-code>; + + /// Rename a filesystem object. + /// + /// Note: This is similar to `renameat` in POSIX. + rename-at: func( + /// The relative source path of the file or directory to rename. + old-path: string, + /// The base directory for `new-path`. + new-descriptor: borrow, + /// The relative destination path to which to rename the file or directory. + new-path: string, + ) -> result<_, error-code>; + + /// Create a symbolic link (also known as a "symlink"). + /// + /// If `old-path` starts with `/`, the function fails with + /// `error-code::not-permitted`. + /// + /// Note: This is similar to `symlinkat` in POSIX. + symlink-at: func( + /// The contents of the symbolic link. + old-path: string, + /// The relative destination path at which to create the symbolic link. + new-path: string, + ) -> result<_, error-code>; + + /// Unlink a filesystem object that is not a directory. + /// + /// Return `error-code::is-directory` if the path refers to a directory. + /// Note: This is similar to `unlinkat(fd, path, 0)` in POSIX. + unlink-file-at: func( + /// The relative path to a file to unlink. + path: string, + ) -> result<_, error-code>; + + /// Test whether two descriptors refer to the same filesystem object. + /// + /// In POSIX, this corresponds to testing whether the two descriptors have the + /// same device (`st_dev`) and inode (`st_ino` or `d_ino`) numbers. + /// wasi-filesystem does not expose device and inode numbers, so this function + /// may be used instead. + is-same-object: func(other: borrow) -> bool; + + /// Return a hash of the metadata associated with a filesystem object referred + /// to by a descriptor. + /// + /// This returns a hash of the last-modification timestamp and file size, and + /// may also include the inode number, device number, birth timestamp, and + /// other metadata fields that may change when the file is modified or + /// replaced. It may also include a secret value chosen by the + /// implementation and not otherwise exposed. + /// + /// Implementations are encourated to provide the following properties: + /// + /// - If the file is not modified or replaced, the computed hash value should + /// usually not change. + /// - If the object is modified or replaced, the computed hash value should + /// usually change. + /// - The inputs to the hash should not be easily computable from the + /// computed hash. + /// + /// However, none of these is required. + metadata-hash: func() -> result; + + /// Return a hash of the metadata associated with a filesystem object referred + /// to by a directory descriptor and a relative path. + /// + /// This performs the same hash computation as `metadata-hash`. + metadata-hash-at: func( + /// Flags determining the method of how the path is resolved. + path-flags: path-flags, + /// The relative path of the file or directory to inspect. + path: string, + ) -> result; + } + + /// A stream of directory entries. + resource directory-entry-stream { + /// Read a single directory entry from a `directory-entry-stream`. + read-directory-entry: func() -> result, error-code>; + } + + /// Attempts to extract a filesystem-related `error-code` from the stream + /// `error` provided. + /// + /// Stream operations which return `stream-error::last-operation-failed` + /// have a payload with more information about the operation that failed. + /// This payload can be passed through to this function to see if there's + /// filesystem-related information about the error to return. + /// + /// Note that this function is fallible because not all stream-related + /// errors are filesystem-related errors. + filesystem-error-code: func(err: borrow) -> option; +} diff --git a/components/moonbit/http-hello-world/wit/deps/filesystem/world.wit b/components/moonbit/http-hello-world/wit/deps/filesystem/world.wit new file mode 100644 index 0000000..663f579 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/filesystem/world.wit @@ -0,0 +1,6 @@ +package wasi:filesystem@0.2.0; + +world imports { + import types; + import preopens; +} diff --git a/components/moonbit/http-hello-world/wit/deps/http/handler.wit b/components/moonbit/http-hello-world/wit/deps/http/handler.wit new file mode 100644 index 0000000..a34a064 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/http/handler.wit @@ -0,0 +1,43 @@ +/// This interface defines a handler of incoming HTTP Requests. It should +/// be exported by components which can respond to HTTP Requests. +interface incoming-handler { + use types.{incoming-request, response-outparam}; + + /// This function is invoked with an incoming HTTP Request, and a resource + /// `response-outparam` which provides the capability to reply with an HTTP + /// Response. The response is sent by calling the `response-outparam.set` + /// method, which allows execution to continue after the response has been + /// sent. This enables both streaming to the response body, and performing other + /// work. + /// + /// The implementor of this function must write a response to the + /// `response-outparam` before returning, or else the caller will respond + /// with an error on its behalf. + handle: func( + request: incoming-request, + response-out: response-outparam + ); +} + +/// This interface defines a handler of outgoing HTTP Requests. It should be +/// imported by components which wish to make HTTP Requests. +interface outgoing-handler { + use types.{ + outgoing-request, request-options, future-incoming-response, error-code + }; + + /// This function is invoked with an outgoing HTTP Request, and it returns + /// a resource `future-incoming-response` which represents an HTTP Response + /// which may arrive in the future. + /// + /// The `options` argument accepts optional parameters for the HTTP + /// protocol's transport layer. + /// + /// This function may return an error if the `outgoing-request` is invalid + /// or not allowed to be made. Otherwise, protocol errors are reported + /// through the `future-incoming-response`. + handle: func( + request: outgoing-request, + options: option + ) -> result; +} diff --git a/components/moonbit/http-hello-world/wit/deps/http/proxy.wit b/components/moonbit/http-hello-world/wit/deps/http/proxy.wit new file mode 100644 index 0000000..687c24d --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/http/proxy.wit @@ -0,0 +1,32 @@ +package wasi:http@0.2.0; + +/// The `wasi:http/proxy` world captures a widely-implementable intersection of +/// hosts that includes HTTP forward and reverse proxies. Components targeting +/// this world may concurrently stream in and out any number of incoming and +/// outgoing HTTP requests. +world proxy { + /// HTTP proxies have access to time and randomness. + include wasi:clocks/imports@0.2.0; + import wasi:random/random@0.2.0; + + /// Proxies have standard output and error streams which are expected to + /// terminate in a developer-facing console provided by the host. + import wasi:cli/stdout@0.2.0; + import wasi:cli/stderr@0.2.0; + + /// TODO: this is a temporary workaround until component tooling is able to + /// gracefully handle the absence of stdin. Hosts must return an eof stream + /// for this import, which is what wasi-libc + tooling will do automatically + /// when this import is properly removed. + import wasi:cli/stdin@0.2.0; + + /// This is the default handler to use when user code simply wants to make an + /// HTTP request (e.g., via `fetch()`). + import outgoing-handler; + + /// The host delivers incoming HTTP requests to a component by calling the + /// `handle` function of this exported interface. A host may arbitrarily reuse + /// or not reuse component instance when delivering incoming HTTP requests and + /// thus a component must be able to handle 0..N calls to `handle`. + export incoming-handler; +} diff --git a/components/moonbit/http-hello-world/wit/deps/http/types.wit b/components/moonbit/http-hello-world/wit/deps/http/types.wit new file mode 100644 index 0000000..755ac6a --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/http/types.wit @@ -0,0 +1,570 @@ +/// This interface defines all of the types and methods for implementing +/// HTTP Requests and Responses, both incoming and outgoing, as well as +/// their headers, trailers, and bodies. +interface types { + use wasi:clocks/monotonic-clock@0.2.0.{duration}; + use wasi:io/streams@0.2.0.{input-stream, output-stream}; + use wasi:io/error@0.2.0.{error as io-error}; + use wasi:io/poll@0.2.0.{pollable}; + + /// This type corresponds to HTTP standard Methods. + variant method { + get, + head, + post, + put, + delete, + connect, + options, + trace, + patch, + other(string) + } + + /// This type corresponds to HTTP standard Related Schemes. + variant scheme { + HTTP, + HTTPS, + other(string) + } + + /// These cases are inspired by the IANA HTTP Proxy Error Types: + /// https://www.iana.org/assignments/http-proxy-status/http-proxy-status.xhtml#table-http-proxy-error-types + variant error-code { + DNS-timeout, + DNS-error(DNS-error-payload), + destination-not-found, + destination-unavailable, + destination-IP-prohibited, + destination-IP-unroutable, + connection-refused, + connection-terminated, + connection-timeout, + connection-read-timeout, + connection-write-timeout, + connection-limit-reached, + TLS-protocol-error, + TLS-certificate-error, + TLS-alert-received(TLS-alert-received-payload), + HTTP-request-denied, + HTTP-request-length-required, + HTTP-request-body-size(option), + HTTP-request-method-invalid, + HTTP-request-URI-invalid, + HTTP-request-URI-too-long, + HTTP-request-header-section-size(option), + HTTP-request-header-size(option), + HTTP-request-trailer-section-size(option), + HTTP-request-trailer-size(field-size-payload), + HTTP-response-incomplete, + HTTP-response-header-section-size(option), + HTTP-response-header-size(field-size-payload), + HTTP-response-body-size(option), + HTTP-response-trailer-section-size(option), + HTTP-response-trailer-size(field-size-payload), + HTTP-response-transfer-coding(option), + HTTP-response-content-coding(option), + HTTP-response-timeout, + HTTP-upgrade-failed, + HTTP-protocol-error, + loop-detected, + configuration-error, + /// This is a catch-all error for anything that doesn't fit cleanly into a + /// more specific case. It also includes an optional string for an + /// unstructured description of the error. Users should not depend on the + /// string for diagnosing errors, as it's not required to be consistent + /// between implementations. + internal-error(option) + } + + /// Defines the case payload type for `DNS-error` above: + record DNS-error-payload { + rcode: option, + info-code: option + } + + /// Defines the case payload type for `TLS-alert-received` above: + record TLS-alert-received-payload { + alert-id: option, + alert-message: option + } + + /// Defines the case payload type for `HTTP-response-{header,trailer}-size` above: + record field-size-payload { + field-name: option, + field-size: option + } + + /// Attempts to extract a http-related `error` from the wasi:io `error` + /// provided. + /// + /// Stream operations which return + /// `wasi:io/stream/stream-error::last-operation-failed` have a payload of + /// type `wasi:io/error/error` with more information about the operation + /// that failed. This payload can be passed through to this function to see + /// if there's http-related information about the error to return. + /// + /// Note that this function is fallible because not all io-errors are + /// http-related errors. + http-error-code: func(err: borrow) -> option; + + /// This type enumerates the different kinds of errors that may occur when + /// setting or appending to a `fields` resource. + variant header-error { + /// This error indicates that a `field-key` or `field-value` was + /// syntactically invalid when used with an operation that sets headers in a + /// `fields`. + invalid-syntax, + + /// This error indicates that a forbidden `field-key` was used when trying + /// to set a header in a `fields`. + forbidden, + + /// This error indicates that the operation on the `fields` was not + /// permitted because the fields are immutable. + immutable, + } + + /// Field keys are always strings. + type field-key = string; + + /// Field values should always be ASCII strings. However, in + /// reality, HTTP implementations often have to interpret malformed values, + /// so they are provided as a list of bytes. + type field-value = list; + + /// This following block defines the `fields` resource which corresponds to + /// HTTP standard Fields. Fields are a common representation used for both + /// Headers and Trailers. + /// + /// A `fields` may be mutable or immutable. A `fields` created using the + /// constructor, `from-list`, or `clone` will be mutable, but a `fields` + /// resource given by other means (including, but not limited to, + /// `incoming-request.headers`, `outgoing-request.headers`) might be be + /// immutable. In an immutable fields, the `set`, `append`, and `delete` + /// operations will fail with `header-error.immutable`. + resource fields { + + /// Construct an empty HTTP Fields. + /// + /// The resulting `fields` is mutable. + constructor(); + + /// Construct an HTTP Fields. + /// + /// The resulting `fields` is mutable. + /// + /// The list represents each key-value pair in the Fields. Keys + /// which have multiple values are represented by multiple entries in this + /// list with the same key. + /// + /// The tuple is a pair of the field key, represented as a string, and + /// Value, represented as a list of bytes. In a valid Fields, all keys + /// and values are valid UTF-8 strings. However, values are not always + /// well-formed, so they are represented as a raw list of bytes. + /// + /// An error result will be returned if any header or value was + /// syntactically invalid, or if a header was forbidden. + from-list: static func( + entries: list> + ) -> result; + + /// Get all of the values corresponding to a key. If the key is not present + /// in this `fields`, an empty list is returned. However, if the key is + /// present but empty, this is represented by a list with one or more + /// empty field-values present. + get: func(name: field-key) -> list; + + /// Returns `true` when the key is present in this `fields`. If the key is + /// syntactically invalid, `false` is returned. + has: func(name: field-key) -> bool; + + /// Set all of the values for a key. Clears any existing values for that + /// key, if they have been set. + /// + /// Fails with `header-error.immutable` if the `fields` are immutable. + set: func(name: field-key, value: list) -> result<_, header-error>; + + /// Delete all values for a key. Does nothing if no values for the key + /// exist. + /// + /// Fails with `header-error.immutable` if the `fields` are immutable. + delete: func(name: field-key) -> result<_, header-error>; + + /// Append a value for a key. Does not change or delete any existing + /// values for that key. + /// + /// Fails with `header-error.immutable` if the `fields` are immutable. + append: func(name: field-key, value: field-value) -> result<_, header-error>; + + /// Retrieve the full set of keys and values in the Fields. Like the + /// constructor, the list represents each key-value pair. + /// + /// The outer list represents each key-value pair in the Fields. Keys + /// which have multiple values are represented by multiple entries in this + /// list with the same key. + entries: func() -> list>; + + /// Make a deep copy of the Fields. Equivelant in behavior to calling the + /// `fields` constructor on the return value of `entries`. The resulting + /// `fields` is mutable. + clone: func() -> fields; + } + + /// Headers is an alias for Fields. + type headers = fields; + + /// Trailers is an alias for Fields. + type trailers = fields; + + /// Represents an incoming HTTP Request. + resource incoming-request { + + /// Returns the method of the incoming request. + method: func() -> method; + + /// Returns the path with query parameters from the request, as a string. + path-with-query: func() -> option; + + /// Returns the protocol scheme from the request. + scheme: func() -> option; + + /// Returns the authority from the request, if it was present. + authority: func() -> option; + + /// Get the `headers` associated with the request. + /// + /// The returned `headers` resource is immutable: `set`, `append`, and + /// `delete` operations will fail with `header-error.immutable`. + /// + /// The `headers` returned are a child resource: it must be dropped before + /// the parent `incoming-request` is dropped. Dropping this + /// `incoming-request` before all children are dropped will trap. + headers: func() -> headers; + + /// Gives the `incoming-body` associated with this request. Will only + /// return success at most once, and subsequent calls will return error. + consume: func() -> result; + } + + /// Represents an outgoing HTTP Request. + resource outgoing-request { + + /// Construct a new `outgoing-request` with a default `method` of `GET`, and + /// `none` values for `path-with-query`, `scheme`, and `authority`. + /// + /// * `headers` is the HTTP Headers for the Request. + /// + /// It is possible to construct, or manipulate with the accessor functions + /// below, an `outgoing-request` with an invalid combination of `scheme` + /// and `authority`, or `headers` which are not permitted to be sent. + /// It is the obligation of the `outgoing-handler.handle` implementation + /// to reject invalid constructions of `outgoing-request`. + constructor( + headers: headers + ); + + /// Returns the resource corresponding to the outgoing Body for this + /// Request. + /// + /// Returns success on the first call: the `outgoing-body` resource for + /// this `outgoing-request` can be retrieved at most once. Subsequent + /// calls will return error. + body: func() -> result; + + /// Get the Method for the Request. + method: func() -> method; + /// Set the Method for the Request. Fails if the string present in a + /// `method.other` argument is not a syntactically valid method. + set-method: func(method: method) -> result; + + /// Get the combination of the HTTP Path and Query for the Request. + /// When `none`, this represents an empty Path and empty Query. + path-with-query: func() -> option; + /// Set the combination of the HTTP Path and Query for the Request. + /// When `none`, this represents an empty Path and empty Query. Fails is the + /// string given is not a syntactically valid path and query uri component. + set-path-with-query: func(path-with-query: option) -> result; + + /// Get the HTTP Related Scheme for the Request. When `none`, the + /// implementation may choose an appropriate default scheme. + scheme: func() -> option; + /// Set the HTTP Related Scheme for the Request. When `none`, the + /// implementation may choose an appropriate default scheme. Fails if the + /// string given is not a syntactically valid uri scheme. + set-scheme: func(scheme: option) -> result; + + /// Get the HTTP Authority for the Request. A value of `none` may be used + /// with Related Schemes which do not require an Authority. The HTTP and + /// HTTPS schemes always require an authority. + authority: func() -> option; + /// Set the HTTP Authority for the Request. A value of `none` may be used + /// with Related Schemes which do not require an Authority. The HTTP and + /// HTTPS schemes always require an authority. Fails if the string given is + /// not a syntactically valid uri authority. + set-authority: func(authority: option) -> result; + + /// Get the headers associated with the Request. + /// + /// The returned `headers` resource is immutable: `set`, `append`, and + /// `delete` operations will fail with `header-error.immutable`. + /// + /// This headers resource is a child: it must be dropped before the parent + /// `outgoing-request` is dropped, or its ownership is transfered to + /// another component by e.g. `outgoing-handler.handle`. + headers: func() -> headers; + } + + /// Parameters for making an HTTP Request. Each of these parameters is + /// currently an optional timeout applicable to the transport layer of the + /// HTTP protocol. + /// + /// These timeouts are separate from any the user may use to bound a + /// blocking call to `wasi:io/poll.poll`. + resource request-options { + /// Construct a default `request-options` value. + constructor(); + + /// The timeout for the initial connect to the HTTP Server. + connect-timeout: func() -> option; + + /// Set the timeout for the initial connect to the HTTP Server. An error + /// return value indicates that this timeout is not supported. + set-connect-timeout: func(duration: option) -> result; + + /// The timeout for receiving the first byte of the Response body. + first-byte-timeout: func() -> option; + + /// Set the timeout for receiving the first byte of the Response body. An + /// error return value indicates that this timeout is not supported. + set-first-byte-timeout: func(duration: option) -> result; + + /// The timeout for receiving subsequent chunks of bytes in the Response + /// body stream. + between-bytes-timeout: func() -> option; + + /// Set the timeout for receiving subsequent chunks of bytes in the Response + /// body stream. An error return value indicates that this timeout is not + /// supported. + set-between-bytes-timeout: func(duration: option) -> result; + } + + /// Represents the ability to send an HTTP Response. + /// + /// This resource is used by the `wasi:http/incoming-handler` interface to + /// allow a Response to be sent corresponding to the Request provided as the + /// other argument to `incoming-handler.handle`. + resource response-outparam { + + /// Set the value of the `response-outparam` to either send a response, + /// or indicate an error. + /// + /// This method consumes the `response-outparam` to ensure that it is + /// called at most once. If it is never called, the implementation + /// will respond with an error. + /// + /// The user may provide an `error` to `response` to allow the + /// implementation determine how to respond with an HTTP error response. + set: static func( + param: response-outparam, + response: result, + ); + } + + /// This type corresponds to the HTTP standard Status Code. + type status-code = u16; + + /// Represents an incoming HTTP Response. + resource incoming-response { + + /// Returns the status code from the incoming response. + status: func() -> status-code; + + /// Returns the headers from the incoming response. + /// + /// The returned `headers` resource is immutable: `set`, `append`, and + /// `delete` operations will fail with `header-error.immutable`. + /// + /// This headers resource is a child: it must be dropped before the parent + /// `incoming-response` is dropped. + headers: func() -> headers; + + /// Returns the incoming body. May be called at most once. Returns error + /// if called additional times. + consume: func() -> result; + } + + /// Represents an incoming HTTP Request or Response's Body. + /// + /// A body has both its contents - a stream of bytes - and a (possibly + /// empty) set of trailers, indicating that the full contents of the + /// body have been received. This resource represents the contents as + /// an `input-stream` and the delivery of trailers as a `future-trailers`, + /// and ensures that the user of this interface may only be consuming either + /// the body contents or waiting on trailers at any given time. + resource incoming-body { + + /// Returns the contents of the body, as a stream of bytes. + /// + /// Returns success on first call: the stream representing the contents + /// can be retrieved at most once. Subsequent calls will return error. + /// + /// The returned `input-stream` resource is a child: it must be dropped + /// before the parent `incoming-body` is dropped, or consumed by + /// `incoming-body.finish`. + /// + /// This invariant ensures that the implementation can determine whether + /// the user is consuming the contents of the body, waiting on the + /// `future-trailers` to be ready, or neither. This allows for network + /// backpressure is to be applied when the user is consuming the body, + /// and for that backpressure to not inhibit delivery of the trailers if + /// the user does not read the entire body. + %stream: func() -> result; + + /// Takes ownership of `incoming-body`, and returns a `future-trailers`. + /// This function will trap if the `input-stream` child is still alive. + finish: static func(this: incoming-body) -> future-trailers; + } + + /// Represents a future which may eventaully return trailers, or an error. + /// + /// In the case that the incoming HTTP Request or Response did not have any + /// trailers, this future will resolve to the empty set of trailers once the + /// complete Request or Response body has been received. + resource future-trailers { + + /// Returns a pollable which becomes ready when either the trailers have + /// been received, or an error has occured. When this pollable is ready, + /// the `get` method will return `some`. + subscribe: func() -> pollable; + + /// Returns the contents of the trailers, or an error which occured, + /// once the future is ready. + /// + /// The outer `option` represents future readiness. Users can wait on this + /// `option` to become `some` using the `subscribe` method. + /// + /// The outer `result` is used to retrieve the trailers or error at most + /// once. It will be success on the first call in which the outer option + /// is `some`, and error on subsequent calls. + /// + /// The inner `result` represents that either the HTTP Request or Response + /// body, as well as any trailers, were received successfully, or that an + /// error occured receiving them. The optional `trailers` indicates whether + /// or not trailers were present in the body. + /// + /// When some `trailers` are returned by this method, the `trailers` + /// resource is immutable, and a child. Use of the `set`, `append`, or + /// `delete` methods will return an error, and the resource must be + /// dropped before the parent `future-trailers` is dropped. + get: func() -> option, error-code>>>; + } + + /// Represents an outgoing HTTP Response. + resource outgoing-response { + + /// Construct an `outgoing-response`, with a default `status-code` of `200`. + /// If a different `status-code` is needed, it must be set via the + /// `set-status-code` method. + /// + /// * `headers` is the HTTP Headers for the Response. + constructor(headers: headers); + + /// Get the HTTP Status Code for the Response. + status-code: func() -> status-code; + + /// Set the HTTP Status Code for the Response. Fails if the status-code + /// given is not a valid http status code. + set-status-code: func(status-code: status-code) -> result; + + /// Get the headers associated with the Request. + /// + /// The returned `headers` resource is immutable: `set`, `append`, and + /// `delete` operations will fail with `header-error.immutable`. + /// + /// This headers resource is a child: it must be dropped before the parent + /// `outgoing-request` is dropped, or its ownership is transfered to + /// another component by e.g. `outgoing-handler.handle`. + headers: func() -> headers; + + /// Returns the resource corresponding to the outgoing Body for this Response. + /// + /// Returns success on the first call: the `outgoing-body` resource for + /// this `outgoing-response` can be retrieved at most once. Subsequent + /// calls will return error. + body: func() -> result; + } + + /// Represents an outgoing HTTP Request or Response's Body. + /// + /// A body has both its contents - a stream of bytes - and a (possibly + /// empty) set of trailers, inducating the full contents of the body + /// have been sent. This resource represents the contents as an + /// `output-stream` child resource, and the completion of the body (with + /// optional trailers) with a static function that consumes the + /// `outgoing-body` resource, and ensures that the user of this interface + /// may not write to the body contents after the body has been finished. + /// + /// If the user code drops this resource, as opposed to calling the static + /// method `finish`, the implementation should treat the body as incomplete, + /// and that an error has occured. The implementation should propogate this + /// error to the HTTP protocol by whatever means it has available, + /// including: corrupting the body on the wire, aborting the associated + /// Request, or sending a late status code for the Response. + resource outgoing-body { + + /// Returns a stream for writing the body contents. + /// + /// The returned `output-stream` is a child resource: it must be dropped + /// before the parent `outgoing-body` resource is dropped (or finished), + /// otherwise the `outgoing-body` drop or `finish` will trap. + /// + /// Returns success on the first call: the `output-stream` resource for + /// this `outgoing-body` may be retrieved at most once. Subsequent calls + /// will return error. + write: func() -> result; + + /// Finalize an outgoing body, optionally providing trailers. This must be + /// called to signal that the response is complete. If the `outgoing-body` + /// is dropped without calling `outgoing-body.finalize`, the implementation + /// should treat the body as corrupted. + /// + /// Fails if the body's `outgoing-request` or `outgoing-response` was + /// constructed with a Content-Length header, and the contents written + /// to the body (via `write`) does not match the value given in the + /// Content-Length. + finish: static func( + this: outgoing-body, + trailers: option + ) -> result<_, error-code>; + } + + /// Represents a future which may eventaully return an incoming HTTP + /// Response, or an error. + /// + /// This resource is returned by the `wasi:http/outgoing-handler` interface to + /// provide the HTTP Response corresponding to the sent Request. + resource future-incoming-response { + /// Returns a pollable which becomes ready when either the Response has + /// been received, or an error has occured. When this pollable is ready, + /// the `get` method will return `some`. + subscribe: func() -> pollable; + + /// Returns the incoming HTTP Response, or an error, once one is ready. + /// + /// The outer `option` represents future readiness. Users can wait on this + /// `option` to become `some` using the `subscribe` method. + /// + /// The outer `result` is used to retrieve the response or error at most + /// once. It will be success on the first call in which the outer option + /// is `some`, and error on subsequent calls. + /// + /// The inner `result` represents that either the incoming HTTP Response + /// status and headers have recieved successfully, or that an error + /// occured. Errors may also occur while consuming the response body, + /// but those will be reported by the `incoming-body` and its + /// `output-stream` child. + get: func() -> option>>; + + } +} diff --git a/components/moonbit/http-hello-world/wit/deps/io/error.wit b/components/moonbit/http-hello-world/wit/deps/io/error.wit new file mode 100644 index 0000000..22e5b64 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/io/error.wit @@ -0,0 +1,34 @@ +package wasi:io@0.2.0; + + +interface error { + /// A resource which represents some error information. + /// + /// The only method provided by this resource is `to-debug-string`, + /// which provides some human-readable information about the error. + /// + /// In the `wasi:io` package, this resource is returned through the + /// `wasi:io/streams/stream-error` type. + /// + /// To provide more specific error information, other interfaces may + /// provide functions to further "downcast" this error into more specific + /// error information. For example, `error`s returned in streams derived + /// from filesystem types to be described using the filesystem's own + /// error-code type, using the function + /// `wasi:filesystem/types/filesystem-error-code`, which takes a parameter + /// `borrow` and returns + /// `option`. + /// + /// The set of functions which can "downcast" an `error` into a more + /// concrete type is open. + resource error { + /// Returns a string that is suitable to assist humans in debugging + /// this error. + /// + /// WARNING: The returned string should not be consumed mechanically! + /// It may change across platforms, hosts, or other implementation + /// details. Parsing this string is a major platform-compatibility + /// hazard. + to-debug-string: func() -> string; + } +} diff --git a/components/moonbit/http-hello-world/wit/deps/io/poll.wit b/components/moonbit/http-hello-world/wit/deps/io/poll.wit new file mode 100644 index 0000000..ddc67f8 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/io/poll.wit @@ -0,0 +1,41 @@ +package wasi:io@0.2.0; + +/// A poll API intended to let users wait for I/O events on multiple handles +/// at once. +interface poll { + /// `pollable` represents a single I/O event which may be ready, or not. + resource pollable { + + /// Return the readiness of a pollable. This function never blocks. + /// + /// Returns `true` when the pollable is ready, and `false` otherwise. + ready: func() -> bool; + + /// `block` returns immediately if the pollable is ready, and otherwise + /// blocks until ready. + /// + /// This function is equivalent to calling `poll.poll` on a list + /// containing only this pollable. + block: func(); + } + + /// Poll for completion on a set of pollables. + /// + /// This function takes a list of pollables, which identify I/O sources of + /// interest, and waits until one or more of the events is ready for I/O. + /// + /// The result `list` contains one or more indices of handles in the + /// argument list that is ready for I/O. + /// + /// If the list contains more elements than can be indexed with a `u32` + /// value, this function traps. + /// + /// A timeout can be implemented by adding a pollable from the + /// wasi-clocks API to the list. + /// + /// This function does not return a `result`; polling in itself does not + /// do any I/O so it doesn't fail. If any of the I/O sources identified by + /// the pollables has an error, it is indicated by marking the source as + /// being reaedy for I/O. + poll: func(in: list>) -> list; +} diff --git a/components/moonbit/http-hello-world/wit/deps/io/streams.wit b/components/moonbit/http-hello-world/wit/deps/io/streams.wit new file mode 100644 index 0000000..6d2f871 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/io/streams.wit @@ -0,0 +1,262 @@ +package wasi:io@0.2.0; + +/// WASI I/O is an I/O abstraction API which is currently focused on providing +/// stream types. +/// +/// In the future, the component model is expected to add built-in stream types; +/// when it does, they are expected to subsume this API. +interface streams { + use error.{error}; + use poll.{pollable}; + + /// An error for input-stream and output-stream operations. + variant stream-error { + /// The last operation (a write or flush) failed before completion. + /// + /// More information is available in the `error` payload. + last-operation-failed(error), + /// The stream is closed: no more input will be accepted by the + /// stream. A closed output-stream will return this error on all + /// future operations. + closed + } + + /// An input bytestream. + /// + /// `input-stream`s are *non-blocking* to the extent practical on underlying + /// platforms. I/O operations always return promptly; if fewer bytes are + /// promptly available than requested, they return the number of bytes promptly + /// available, which could even be zero. To wait for data to be available, + /// use the `subscribe` function to obtain a `pollable` which can be polled + /// for using `wasi:io/poll`. + resource input-stream { + /// Perform a non-blocking read from the stream. + /// + /// When the source of a `read` is binary data, the bytes from the source + /// are returned verbatim. When the source of a `read` is known to the + /// implementation to be text, bytes containing the UTF-8 encoding of the + /// text are returned. + /// + /// This function returns a list of bytes containing the read data, + /// when successful. The returned list will contain up to `len` bytes; + /// it may return fewer than requested, but not more. The list is + /// empty when no bytes are available for reading at this time. The + /// pollable given by `subscribe` will be ready when more bytes are + /// available. + /// + /// This function fails with a `stream-error` when the operation + /// encounters an error, giving `last-operation-failed`, or when the + /// stream is closed, giving `closed`. + /// + /// When the caller gives a `len` of 0, it represents a request to + /// read 0 bytes. If the stream is still open, this call should + /// succeed and return an empty list, or otherwise fail with `closed`. + /// + /// The `len` parameter is a `u64`, which could represent a list of u8 which + /// is not possible to allocate in wasm32, or not desirable to allocate as + /// as a return value by the callee. The callee may return a list of bytes + /// less than `len` in size while more bytes are available for reading. + read: func( + /// The maximum number of bytes to read + len: u64 + ) -> result, stream-error>; + + /// Read bytes from a stream, after blocking until at least one byte can + /// be read. Except for blocking, behavior is identical to `read`. + blocking-read: func( + /// The maximum number of bytes to read + len: u64 + ) -> result, stream-error>; + + /// Skip bytes from a stream. Returns number of bytes skipped. + /// + /// Behaves identical to `read`, except instead of returning a list + /// of bytes, returns the number of bytes consumed from the stream. + skip: func( + /// The maximum number of bytes to skip. + len: u64, + ) -> result; + + /// Skip bytes from a stream, after blocking until at least one byte + /// can be skipped. Except for blocking behavior, identical to `skip`. + blocking-skip: func( + /// The maximum number of bytes to skip. + len: u64, + ) -> result; + + /// Create a `pollable` which will resolve once either the specified stream + /// has bytes available to read or the other end of the stream has been + /// closed. + /// The created `pollable` is a child resource of the `input-stream`. + /// Implementations may trap if the `input-stream` is dropped before + /// all derived `pollable`s created with this function are dropped. + subscribe: func() -> pollable; + } + + + /// An output bytestream. + /// + /// `output-stream`s are *non-blocking* to the extent practical on + /// underlying platforms. Except where specified otherwise, I/O operations also + /// always return promptly, after the number of bytes that can be written + /// promptly, which could even be zero. To wait for the stream to be ready to + /// accept data, the `subscribe` function to obtain a `pollable` which can be + /// polled for using `wasi:io/poll`. + resource output-stream { + /// Check readiness for writing. This function never blocks. + /// + /// Returns the number of bytes permitted for the next call to `write`, + /// or an error. Calling `write` with more bytes than this function has + /// permitted will trap. + /// + /// When this function returns 0 bytes, the `subscribe` pollable will + /// become ready when this function will report at least 1 byte, or an + /// error. + check-write: func() -> result; + + /// Perform a write. This function never blocks. + /// + /// When the destination of a `write` is binary data, the bytes from + /// `contents` are written verbatim. When the destination of a `write` is + /// known to the implementation to be text, the bytes of `contents` are + /// transcoded from UTF-8 into the encoding of the destination and then + /// written. + /// + /// Precondition: check-write gave permit of Ok(n) and contents has a + /// length of less than or equal to n. Otherwise, this function will trap. + /// + /// returns Err(closed) without writing if the stream has closed since + /// the last call to check-write provided a permit. + write: func( + contents: list + ) -> result<_, stream-error>; + + /// Perform a write of up to 4096 bytes, and then flush the stream. Block + /// until all of these operations are complete, or an error occurs. + /// + /// This is a convenience wrapper around the use of `check-write`, + /// `subscribe`, `write`, and `flush`, and is implemented with the + /// following pseudo-code: + /// + /// ```text + /// let pollable = this.subscribe(); + /// while !contents.is_empty() { + /// // Wait for the stream to become writable + /// pollable.block(); + /// let Ok(n) = this.check-write(); // eliding error handling + /// let len = min(n, contents.len()); + /// let (chunk, rest) = contents.split_at(len); + /// this.write(chunk ); // eliding error handling + /// contents = rest; + /// } + /// this.flush(); + /// // Wait for completion of `flush` + /// pollable.block(); + /// // Check for any errors that arose during `flush` + /// let _ = this.check-write(); // eliding error handling + /// ``` + blocking-write-and-flush: func( + contents: list + ) -> result<_, stream-error>; + + /// Request to flush buffered output. This function never blocks. + /// + /// This tells the output-stream that the caller intends any buffered + /// output to be flushed. the output which is expected to be flushed + /// is all that has been passed to `write` prior to this call. + /// + /// Upon calling this function, the `output-stream` will not accept any + /// writes (`check-write` will return `ok(0)`) until the flush has + /// completed. The `subscribe` pollable will become ready when the + /// flush has completed and the stream can accept more writes. + flush: func() -> result<_, stream-error>; + + /// Request to flush buffered output, and block until flush completes + /// and stream is ready for writing again. + blocking-flush: func() -> result<_, stream-error>; + + /// Create a `pollable` which will resolve once the output-stream + /// is ready for more writing, or an error has occured. When this + /// pollable is ready, `check-write` will return `ok(n)` with n>0, or an + /// error. + /// + /// If the stream is closed, this pollable is always ready immediately. + /// + /// The created `pollable` is a child resource of the `output-stream`. + /// Implementations may trap if the `output-stream` is dropped before + /// all derived `pollable`s created with this function are dropped. + subscribe: func() -> pollable; + + /// Write zeroes to a stream. + /// + /// This should be used precisely like `write` with the exact same + /// preconditions (must use check-write first), but instead of + /// passing a list of bytes, you simply pass the number of zero-bytes + /// that should be written. + write-zeroes: func( + /// The number of zero-bytes to write + len: u64 + ) -> result<_, stream-error>; + + /// Perform a write of up to 4096 zeroes, and then flush the stream. + /// Block until all of these operations are complete, or an error + /// occurs. + /// + /// This is a convenience wrapper around the use of `check-write`, + /// `subscribe`, `write-zeroes`, and `flush`, and is implemented with + /// the following pseudo-code: + /// + /// ```text + /// let pollable = this.subscribe(); + /// while num_zeroes != 0 { + /// // Wait for the stream to become writable + /// pollable.block(); + /// let Ok(n) = this.check-write(); // eliding error handling + /// let len = min(n, num_zeroes); + /// this.write-zeroes(len); // eliding error handling + /// num_zeroes -= len; + /// } + /// this.flush(); + /// // Wait for completion of `flush` + /// pollable.block(); + /// // Check for any errors that arose during `flush` + /// let _ = this.check-write(); // eliding error handling + /// ``` + blocking-write-zeroes-and-flush: func( + /// The number of zero-bytes to write + len: u64 + ) -> result<_, stream-error>; + + /// Read from one stream and write to another. + /// + /// The behavior of splice is equivelant to: + /// 1. calling `check-write` on the `output-stream` + /// 2. calling `read` on the `input-stream` with the smaller of the + /// `check-write` permitted length and the `len` provided to `splice` + /// 3. calling `write` on the `output-stream` with that read data. + /// + /// Any error reported by the call to `check-write`, `read`, or + /// `write` ends the splice and reports that error. + /// + /// This function returns the number of bytes transferred; it may be less + /// than `len`. + splice: func( + /// The stream to read from + src: borrow, + /// The number of bytes to splice + len: u64, + ) -> result; + + /// Read from one stream and write to another, with blocking. + /// + /// This is similar to `splice`, except that it blocks until the + /// `output-stream` is ready for writing, and the `input-stream` + /// is ready for reading, before performing the `splice`. + blocking-splice: func( + /// The stream to read from + src: borrow, + /// The number of bytes to splice + len: u64, + ) -> result; + } +} diff --git a/components/moonbit/http-hello-world/wit/deps/io/world.wit b/components/moonbit/http-hello-world/wit/deps/io/world.wit new file mode 100644 index 0000000..5f0b43f --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/io/world.wit @@ -0,0 +1,6 @@ +package wasi:io@0.2.0; + +world imports { + import streams; + import poll; +} diff --git a/components/moonbit/http-hello-world/wit/deps/random/insecure-seed.wit b/components/moonbit/http-hello-world/wit/deps/random/insecure-seed.wit new file mode 100644 index 0000000..47210ac --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/random/insecure-seed.wit @@ -0,0 +1,25 @@ +package wasi:random@0.2.0; +/// The insecure-seed interface for seeding hash-map DoS resistance. +/// +/// It is intended to be portable at least between Unix-family platforms and +/// Windows. +interface insecure-seed { + /// Return a 128-bit value that may contain a pseudo-random value. + /// + /// The returned value is not required to be computed from a CSPRNG, and may + /// even be entirely deterministic. Host implementations are encouraged to + /// provide pseudo-random values to any program exposed to + /// attacker-controlled content, to enable DoS protection built into many + /// languages' hash-map implementations. + /// + /// This function is intended to only be called once, by a source language + /// to initialize Denial Of Service (DoS) protection in its hash-map + /// implementation. + /// + /// # Expected future evolution + /// + /// This will likely be changed to a value import, to prevent it from being + /// called multiple times and potentially used for purposes other than DoS + /// protection. + insecure-seed: func() -> tuple; +} diff --git a/components/moonbit/http-hello-world/wit/deps/random/insecure.wit b/components/moonbit/http-hello-world/wit/deps/random/insecure.wit new file mode 100644 index 0000000..c58f4ee --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/random/insecure.wit @@ -0,0 +1,22 @@ +package wasi:random@0.2.0; +/// The insecure interface for insecure pseudo-random numbers. +/// +/// It is intended to be portable at least between Unix-family platforms and +/// Windows. +interface insecure { + /// Return `len` insecure pseudo-random bytes. + /// + /// This function is not cryptographically secure. Do not use it for + /// anything related to security. + /// + /// There are no requirements on the values of the returned bytes, however + /// implementations are encouraged to return evenly distributed values with + /// a long period. + get-insecure-random-bytes: func(len: u64) -> list; + + /// Return an insecure pseudo-random `u64` value. + /// + /// This function returns the same type of pseudo-random data as + /// `get-insecure-random-bytes`, represented as a `u64`. + get-insecure-random-u64: func() -> u64; +} diff --git a/components/moonbit/http-hello-world/wit/deps/random/random.wit b/components/moonbit/http-hello-world/wit/deps/random/random.wit new file mode 100644 index 0000000..0c017f0 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/random/random.wit @@ -0,0 +1,26 @@ +package wasi:random@0.2.0; +/// WASI Random is a random data API. +/// +/// It is intended to be portable at least between Unix-family platforms and +/// Windows. +interface random { + /// Return `len` cryptographically-secure random or pseudo-random bytes. + /// + /// This function must produce data at least as cryptographically secure and + /// fast as an adequately seeded cryptographically-secure pseudo-random + /// number generator (CSPRNG). It must not block, from the perspective of + /// the calling program, under any circumstances, including on the first + /// request and on requests for numbers of bytes. The returned data must + /// always be unpredictable. + /// + /// This function must always return fresh data. Deterministic environments + /// must omit this function, rather than implementing it with deterministic + /// data. + get-random-bytes: func(len: u64) -> list; + + /// Return a cryptographically-secure random or pseudo-random `u64` value. + /// + /// This function returns the same type of data as `get-random-bytes`, + /// represented as a `u64`. + get-random-u64: func() -> u64; +} diff --git a/components/moonbit/http-hello-world/wit/deps/random/world.wit b/components/moonbit/http-hello-world/wit/deps/random/world.wit new file mode 100644 index 0000000..3da3491 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/random/world.wit @@ -0,0 +1,7 @@ +package wasi:random@0.2.0; + +world imports { + import random; + import insecure; + import insecure-seed; +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/instance-network.wit b/components/moonbit/http-hello-world/wit/deps/sockets/instance-network.wit new file mode 100644 index 0000000..e455d0f --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/instance-network.wit @@ -0,0 +1,9 @@ + +/// This interface provides a value-export of the default network handle.. +interface instance-network { + use network.{network}; + + /// Get a handle to the default network. + instance-network: func() -> network; + +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/ip-name-lookup.wit b/components/moonbit/http-hello-world/wit/deps/sockets/ip-name-lookup.wit new file mode 100644 index 0000000..8e639ec --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/ip-name-lookup.wit @@ -0,0 +1,51 @@ + +interface ip-name-lookup { + use wasi:io/poll@0.2.0.{pollable}; + use network.{network, error-code, ip-address}; + + + /// Resolve an internet host name to a list of IP addresses. + /// + /// Unicode domain names are automatically converted to ASCII using IDNA encoding. + /// If the input is an IP address string, the address is parsed and returned + /// as-is without making any external requests. + /// + /// See the wasi-socket proposal README.md for a comparison with getaddrinfo. + /// + /// This function never blocks. It either immediately fails or immediately + /// returns successfully with a `resolve-address-stream` that can be used + /// to (asynchronously) fetch the results. + /// + /// # Typical errors + /// - `invalid-argument`: `name` is a syntactically invalid domain name or IP address. + /// + /// # References: + /// - + /// - + /// - + /// - + resolve-addresses: func(network: borrow, name: string) -> result; + + resource resolve-address-stream { + /// Returns the next address from the resolver. + /// + /// This function should be called multiple times. On each call, it will + /// return the next address in connection order preference. If all + /// addresses have been exhausted, this function returns `none`. + /// + /// This function never returns IPv4-mapped IPv6 addresses. + /// + /// # Typical errors + /// - `name-unresolvable`: Name does not exist or has no suitable associated IP addresses. (EAI_NONAME, EAI_NODATA, EAI_ADDRFAMILY) + /// - `temporary-resolver-failure`: A temporary failure in name resolution occurred. (EAI_AGAIN) + /// - `permanent-resolver-failure`: A permanent failure in name resolution occurred. (EAI_FAIL) + /// - `would-block`: A result is not available yet. (EWOULDBLOCK, EAGAIN) + resolve-next-address: func() -> result, error-code>; + + /// Create a `pollable` which will resolve once the stream is ready for I/O. + /// + /// Note: this function is here for WASI Preview2 only. + /// It's planned to be removed when `future` is natively supported in Preview3. + subscribe: func() -> pollable; + } +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/network.wit b/components/moonbit/http-hello-world/wit/deps/sockets/network.wit new file mode 100644 index 0000000..9cadf06 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/network.wit @@ -0,0 +1,145 @@ + +interface network { + /// An opaque resource that represents access to (a subset of) the network. + /// This enables context-based security for networking. + /// There is no need for this to map 1:1 to a physical network interface. + resource network; + + /// Error codes. + /// + /// In theory, every API can return any error code. + /// In practice, API's typically only return the errors documented per API + /// combined with a couple of errors that are always possible: + /// - `unknown` + /// - `access-denied` + /// - `not-supported` + /// - `out-of-memory` + /// - `concurrency-conflict` + /// + /// See each individual API for what the POSIX equivalents are. They sometimes differ per API. + enum error-code { + /// Unknown error + unknown, + + /// Access denied. + /// + /// POSIX equivalent: EACCES, EPERM + access-denied, + + /// The operation is not supported. + /// + /// POSIX equivalent: EOPNOTSUPP + not-supported, + + /// One of the arguments is invalid. + /// + /// POSIX equivalent: EINVAL + invalid-argument, + + /// Not enough memory to complete the operation. + /// + /// POSIX equivalent: ENOMEM, ENOBUFS, EAI_MEMORY + out-of-memory, + + /// The operation timed out before it could finish completely. + timeout, + + /// This operation is incompatible with another asynchronous operation that is already in progress. + /// + /// POSIX equivalent: EALREADY + concurrency-conflict, + + /// Trying to finish an asynchronous operation that: + /// - has not been started yet, or: + /// - was already finished by a previous `finish-*` call. + /// + /// Note: this is scheduled to be removed when `future`s are natively supported. + not-in-progress, + + /// The operation has been aborted because it could not be completed immediately. + /// + /// Note: this is scheduled to be removed when `future`s are natively supported. + would-block, + + + /// The operation is not valid in the socket's current state. + invalid-state, + + /// A new socket resource could not be created because of a system limit. + new-socket-limit, + + /// A bind operation failed because the provided address is not an address that the `network` can bind to. + address-not-bindable, + + /// A bind operation failed because the provided address is already in use or because there are no ephemeral ports available. + address-in-use, + + /// The remote address is not reachable + remote-unreachable, + + + /// The TCP connection was forcefully rejected + connection-refused, + + /// The TCP connection was reset. + connection-reset, + + /// A TCP connection was aborted. + connection-aborted, + + + /// The size of a datagram sent to a UDP socket exceeded the maximum + /// supported size. + datagram-too-large, + + + /// Name does not exist or has no suitable associated IP addresses. + name-unresolvable, + + /// A temporary failure in name resolution occurred. + temporary-resolver-failure, + + /// A permanent failure in name resolution occurred. + permanent-resolver-failure, + } + + enum ip-address-family { + /// Similar to `AF_INET` in POSIX. + ipv4, + + /// Similar to `AF_INET6` in POSIX. + ipv6, + } + + type ipv4-address = tuple; + type ipv6-address = tuple; + + variant ip-address { + ipv4(ipv4-address), + ipv6(ipv6-address), + } + + record ipv4-socket-address { + /// sin_port + port: u16, + /// sin_addr + address: ipv4-address, + } + + record ipv6-socket-address { + /// sin6_port + port: u16, + /// sin6_flowinfo + flow-info: u32, + /// sin6_addr + address: ipv6-address, + /// sin6_scope_id + scope-id: u32, + } + + variant ip-socket-address { + ipv4(ipv4-socket-address), + ipv6(ipv6-socket-address), + } + +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/tcp-create-socket.wit b/components/moonbit/http-hello-world/wit/deps/sockets/tcp-create-socket.wit new file mode 100644 index 0000000..c7ddf1f --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/tcp-create-socket.wit @@ -0,0 +1,27 @@ + +interface tcp-create-socket { + use network.{network, error-code, ip-address-family}; + use tcp.{tcp-socket}; + + /// Create a new TCP socket. + /// + /// Similar to `socket(AF_INET or AF_INET6, SOCK_STREAM, IPPROTO_TCP)` in POSIX. + /// On IPv6 sockets, IPV6_V6ONLY is enabled by default and can't be configured otherwise. + /// + /// This function does not require a network capability handle. This is considered to be safe because + /// at time of creation, the socket is not bound to any `network` yet. Up to the moment `bind`/`connect` + /// is called, the socket is effectively an in-memory configuration object, unable to communicate with the outside world. + /// + /// All sockets are non-blocking. Use the wasi-poll interface to block on asynchronous operations. + /// + /// # Typical errors + /// - `not-supported`: The specified `address-family` is not supported. (EAFNOSUPPORT) + /// - `new-socket-limit`: The new socket resource could not be created because of a system limit. (EMFILE, ENFILE) + /// + /// # References + /// - + /// - + /// - + /// - + create-tcp-socket: func(address-family: ip-address-family) -> result; +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/tcp.wit b/components/moonbit/http-hello-world/wit/deps/sockets/tcp.wit new file mode 100644 index 0000000..5902b9e --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/tcp.wit @@ -0,0 +1,353 @@ + +interface tcp { + use wasi:io/streams@0.2.0.{input-stream, output-stream}; + use wasi:io/poll@0.2.0.{pollable}; + use wasi:clocks/monotonic-clock@0.2.0.{duration}; + use network.{network, error-code, ip-socket-address, ip-address-family}; + + enum shutdown-type { + /// Similar to `SHUT_RD` in POSIX. + receive, + + /// Similar to `SHUT_WR` in POSIX. + send, + + /// Similar to `SHUT_RDWR` in POSIX. + both, + } + + /// A TCP socket resource. + /// + /// The socket can be in one of the following states: + /// - `unbound` + /// - `bind-in-progress` + /// - `bound` (See note below) + /// - `listen-in-progress` + /// - `listening` + /// - `connect-in-progress` + /// - `connected` + /// - `closed` + /// See + /// for a more information. + /// + /// Note: Except where explicitly mentioned, whenever this documentation uses + /// the term "bound" without backticks it actually means: in the `bound` state *or higher*. + /// (i.e. `bound`, `listen-in-progress`, `listening`, `connect-in-progress` or `connected`) + /// + /// In addition to the general error codes documented on the + /// `network::error-code` type, TCP socket methods may always return + /// `error(invalid-state)` when in the `closed` state. + resource tcp-socket { + /// Bind the socket to a specific network on the provided IP address and port. + /// + /// If the IP address is zero (`0.0.0.0` in IPv4, `::` in IPv6), it is left to the implementation to decide which + /// network interface(s) to bind to. + /// If the TCP/UDP port is zero, the socket will be bound to a random free port. + /// + /// Bind can be attempted multiple times on the same socket, even with + /// different arguments on each iteration. But never concurrently and + /// only as long as the previous bind failed. Once a bind succeeds, the + /// binding can't be changed anymore. + /// + /// # Typical errors + /// - `invalid-argument`: The `local-address` has the wrong address family. (EAFNOSUPPORT, EFAULT on Windows) + /// - `invalid-argument`: `local-address` is not a unicast address. (EINVAL) + /// - `invalid-argument`: `local-address` is an IPv4-mapped IPv6 address. (EINVAL) + /// - `invalid-state`: The socket is already bound. (EINVAL) + /// - `address-in-use`: No ephemeral ports available. (EADDRINUSE, ENOBUFS on Windows) + /// - `address-in-use`: Address is already in use. (EADDRINUSE) + /// - `address-not-bindable`: `local-address` is not an address that the `network` can bind to. (EADDRNOTAVAIL) + /// - `not-in-progress`: A `bind` operation is not in progress. + /// - `would-block`: Can't finish the operation, it is still in progress. (EWOULDBLOCK, EAGAIN) + /// + /// # Implementors note + /// When binding to a non-zero port, this bind operation shouldn't be affected by the TIME_WAIT + /// state of a recently closed socket on the same local address. In practice this means that the SO_REUSEADDR + /// socket option should be set implicitly on all platforms, except on Windows where this is the default behavior + /// and SO_REUSEADDR performs something different entirely. + /// + /// Unlike in POSIX, in WASI the bind operation is async. This enables + /// interactive WASI hosts to inject permission prompts. Runtimes that + /// don't want to make use of this ability can simply call the native + /// `bind` as part of either `start-bind` or `finish-bind`. + /// + /// # References + /// - + /// - + /// - + /// - + start-bind: func(network: borrow, local-address: ip-socket-address) -> result<_, error-code>; + finish-bind: func() -> result<_, error-code>; + + /// Connect to a remote endpoint. + /// + /// On success: + /// - the socket is transitioned into the `connection` state. + /// - a pair of streams is returned that can be used to read & write to the connection + /// + /// After a failed connection attempt, the socket will be in the `closed` + /// state and the only valid action left is to `drop` the socket. A single + /// socket can not be used to connect more than once. + /// + /// # Typical errors + /// - `invalid-argument`: The `remote-address` has the wrong address family. (EAFNOSUPPORT) + /// - `invalid-argument`: `remote-address` is not a unicast address. (EINVAL, ENETUNREACH on Linux, EAFNOSUPPORT on MacOS) + /// - `invalid-argument`: `remote-address` is an IPv4-mapped IPv6 address. (EINVAL, EADDRNOTAVAIL on Illumos) + /// - `invalid-argument`: The IP address in `remote-address` is set to INADDR_ANY (`0.0.0.0` / `::`). (EADDRNOTAVAIL on Windows) + /// - `invalid-argument`: The port in `remote-address` is set to 0. (EADDRNOTAVAIL on Windows) + /// - `invalid-argument`: The socket is already attached to a different network. The `network` passed to `connect` must be identical to the one passed to `bind`. + /// - `invalid-state`: The socket is already in the `connected` state. (EISCONN) + /// - `invalid-state`: The socket is already in the `listening` state. (EOPNOTSUPP, EINVAL on Windows) + /// - `timeout`: Connection timed out. (ETIMEDOUT) + /// - `connection-refused`: The connection was forcefully rejected. (ECONNREFUSED) + /// - `connection-reset`: The connection was reset. (ECONNRESET) + /// - `connection-aborted`: The connection was aborted. (ECONNABORTED) + /// - `remote-unreachable`: The remote address is not reachable. (EHOSTUNREACH, EHOSTDOWN, ENETUNREACH, ENETDOWN, ENONET) + /// - `address-in-use`: Tried to perform an implicit bind, but there were no ephemeral ports available. (EADDRINUSE, EADDRNOTAVAIL on Linux, EAGAIN on BSD) + /// - `not-in-progress`: A connect operation is not in progress. + /// - `would-block`: Can't finish the operation, it is still in progress. (EWOULDBLOCK, EAGAIN) + /// + /// # Implementors note + /// The POSIX equivalent of `start-connect` is the regular `connect` syscall. + /// Because all WASI sockets are non-blocking this is expected to return + /// EINPROGRESS, which should be translated to `ok()` in WASI. + /// + /// The POSIX equivalent of `finish-connect` is a `poll` for event `POLLOUT` + /// with a timeout of 0 on the socket descriptor. Followed by a check for + /// the `SO_ERROR` socket option, in case the poll signaled readiness. + /// + /// # References + /// - + /// - + /// - + /// - + start-connect: func(network: borrow, remote-address: ip-socket-address) -> result<_, error-code>; + finish-connect: func() -> result, error-code>; + + /// Start listening for new connections. + /// + /// Transitions the socket into the `listening` state. + /// + /// Unlike POSIX, the socket must already be explicitly bound. + /// + /// # Typical errors + /// - `invalid-state`: The socket is not bound to any local address. (EDESTADDRREQ) + /// - `invalid-state`: The socket is already in the `connected` state. (EISCONN, EINVAL on BSD) + /// - `invalid-state`: The socket is already in the `listening` state. + /// - `address-in-use`: Tried to perform an implicit bind, but there were no ephemeral ports available. (EADDRINUSE) + /// - `not-in-progress`: A listen operation is not in progress. + /// - `would-block`: Can't finish the operation, it is still in progress. (EWOULDBLOCK, EAGAIN) + /// + /// # Implementors note + /// Unlike in POSIX, in WASI the listen operation is async. This enables + /// interactive WASI hosts to inject permission prompts. Runtimes that + /// don't want to make use of this ability can simply call the native + /// `listen` as part of either `start-listen` or `finish-listen`. + /// + /// # References + /// - + /// - + /// - + /// - + start-listen: func() -> result<_, error-code>; + finish-listen: func() -> result<_, error-code>; + + /// Accept a new client socket. + /// + /// The returned socket is bound and in the `connected` state. The following properties are inherited from the listener socket: + /// - `address-family` + /// - `keep-alive-enabled` + /// - `keep-alive-idle-time` + /// - `keep-alive-interval` + /// - `keep-alive-count` + /// - `hop-limit` + /// - `receive-buffer-size` + /// - `send-buffer-size` + /// + /// On success, this function returns the newly accepted client socket along with + /// a pair of streams that can be used to read & write to the connection. + /// + /// # Typical errors + /// - `invalid-state`: Socket is not in the `listening` state. (EINVAL) + /// - `would-block`: No pending connections at the moment. (EWOULDBLOCK, EAGAIN) + /// - `connection-aborted`: An incoming connection was pending, but was terminated by the client before this listener could accept it. (ECONNABORTED) + /// - `new-socket-limit`: The new socket resource could not be created because of a system limit. (EMFILE, ENFILE) + /// + /// # References + /// - + /// - + /// - + /// - + accept: func() -> result, error-code>; + + /// Get the bound local address. + /// + /// POSIX mentions: + /// > If the socket has not been bound to a local name, the value + /// > stored in the object pointed to by `address` is unspecified. + /// + /// WASI is stricter and requires `local-address` to return `invalid-state` when the socket hasn't been bound yet. + /// + /// # Typical errors + /// - `invalid-state`: The socket is not bound to any local address. + /// + /// # References + /// - + /// - + /// - + /// - + local-address: func() -> result; + + /// Get the remote address. + /// + /// # Typical errors + /// - `invalid-state`: The socket is not connected to a remote address. (ENOTCONN) + /// + /// # References + /// - + /// - + /// - + /// - + remote-address: func() -> result; + + /// Whether the socket is in the `listening` state. + /// + /// Equivalent to the SO_ACCEPTCONN socket option. + is-listening: func() -> bool; + + /// Whether this is a IPv4 or IPv6 socket. + /// + /// Equivalent to the SO_DOMAIN socket option. + address-family: func() -> ip-address-family; + + /// Hints the desired listen queue size. Implementations are free to ignore this. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// Any other value will never cause an error, but it might be silently clamped and/or rounded. + /// + /// # Typical errors + /// - `not-supported`: (set) The platform does not support changing the backlog size after the initial listen. + /// - `invalid-argument`: (set) The provided value was 0. + /// - `invalid-state`: (set) The socket is in the `connect-in-progress` or `connected` state. + set-listen-backlog-size: func(value: u64) -> result<_, error-code>; + + /// Enables or disables keepalive. + /// + /// The keepalive behavior can be adjusted using: + /// - `keep-alive-idle-time` + /// - `keep-alive-interval` + /// - `keep-alive-count` + /// These properties can be configured while `keep-alive-enabled` is false, but only come into effect when `keep-alive-enabled` is true. + /// + /// Equivalent to the SO_KEEPALIVE socket option. + keep-alive-enabled: func() -> result; + set-keep-alive-enabled: func(value: bool) -> result<_, error-code>; + + /// Amount of time the connection has to be idle before TCP starts sending keepalive packets. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// Any other value will never cause an error, but it might be silently clamped and/or rounded. + /// I.e. after setting a value, reading the same setting back may return a different value. + /// + /// Equivalent to the TCP_KEEPIDLE socket option. (TCP_KEEPALIVE on MacOS) + /// + /// # Typical errors + /// - `invalid-argument`: (set) The provided value was 0. + keep-alive-idle-time: func() -> result; + set-keep-alive-idle-time: func(value: duration) -> result<_, error-code>; + + /// The time between keepalive packets. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// Any other value will never cause an error, but it might be silently clamped and/or rounded. + /// I.e. after setting a value, reading the same setting back may return a different value. + /// + /// Equivalent to the TCP_KEEPINTVL socket option. + /// + /// # Typical errors + /// - `invalid-argument`: (set) The provided value was 0. + keep-alive-interval: func() -> result; + set-keep-alive-interval: func(value: duration) -> result<_, error-code>; + + /// The maximum amount of keepalive packets TCP should send before aborting the connection. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// Any other value will never cause an error, but it might be silently clamped and/or rounded. + /// I.e. after setting a value, reading the same setting back may return a different value. + /// + /// Equivalent to the TCP_KEEPCNT socket option. + /// + /// # Typical errors + /// - `invalid-argument`: (set) The provided value was 0. + keep-alive-count: func() -> result; + set-keep-alive-count: func(value: u32) -> result<_, error-code>; + + /// Equivalent to the IP_TTL & IPV6_UNICAST_HOPS socket options. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// + /// # Typical errors + /// - `invalid-argument`: (set) The TTL value must be 1 or higher. + hop-limit: func() -> result; + set-hop-limit: func(value: u8) -> result<_, error-code>; + + /// The kernel buffer space reserved for sends/receives on this socket. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// Any other value will never cause an error, but it might be silently clamped and/or rounded. + /// I.e. after setting a value, reading the same setting back may return a different value. + /// + /// Equivalent to the SO_RCVBUF and SO_SNDBUF socket options. + /// + /// # Typical errors + /// - `invalid-argument`: (set) The provided value was 0. + receive-buffer-size: func() -> result; + set-receive-buffer-size: func(value: u64) -> result<_, error-code>; + send-buffer-size: func() -> result; + set-send-buffer-size: func(value: u64) -> result<_, error-code>; + + /// Create a `pollable` which can be used to poll for, or block on, + /// completion of any of the asynchronous operations of this socket. + /// + /// When `finish-bind`, `finish-listen`, `finish-connect` or `accept` + /// return `error(would-block)`, this pollable can be used to wait for + /// their success or failure, after which the method can be retried. + /// + /// The pollable is not limited to the async operation that happens to be + /// in progress at the time of calling `subscribe` (if any). Theoretically, + /// `subscribe` only has to be called once per socket and can then be + /// (re)used for the remainder of the socket's lifetime. + /// + /// See + /// for a more information. + /// + /// Note: this function is here for WASI Preview2 only. + /// It's planned to be removed when `future` is natively supported in Preview3. + subscribe: func() -> pollable; + + /// Initiate a graceful shutdown. + /// + /// - `receive`: The socket is not expecting to receive any data from + /// the peer. The `input-stream` associated with this socket will be + /// closed. Any data still in the receive queue at time of calling + /// this method will be discarded. + /// - `send`: The socket has no more data to send to the peer. The `output-stream` + /// associated with this socket will be closed and a FIN packet will be sent. + /// - `both`: Same effect as `receive` & `send` combined. + /// + /// This function is idempotent. Shutting a down a direction more than once + /// has no effect and returns `ok`. + /// + /// The shutdown function does not close (drop) the socket. + /// + /// # Typical errors + /// - `invalid-state`: The socket is not in the `connected` state. (ENOTCONN) + /// + /// # References + /// - + /// - + /// - + /// - + shutdown: func(shutdown-type: shutdown-type) -> result<_, error-code>; + } +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/udp-create-socket.wit b/components/moonbit/http-hello-world/wit/deps/sockets/udp-create-socket.wit new file mode 100644 index 0000000..0482d1f --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/udp-create-socket.wit @@ -0,0 +1,27 @@ + +interface udp-create-socket { + use network.{network, error-code, ip-address-family}; + use udp.{udp-socket}; + + /// Create a new UDP socket. + /// + /// Similar to `socket(AF_INET or AF_INET6, SOCK_DGRAM, IPPROTO_UDP)` in POSIX. + /// On IPv6 sockets, IPV6_V6ONLY is enabled by default and can't be configured otherwise. + /// + /// This function does not require a network capability handle. This is considered to be safe because + /// at time of creation, the socket is not bound to any `network` yet. Up to the moment `bind` is called, + /// the socket is effectively an in-memory configuration object, unable to communicate with the outside world. + /// + /// All sockets are non-blocking. Use the wasi-poll interface to block on asynchronous operations. + /// + /// # Typical errors + /// - `not-supported`: The specified `address-family` is not supported. (EAFNOSUPPORT) + /// - `new-socket-limit`: The new socket resource could not be created because of a system limit. (EMFILE, ENFILE) + /// + /// # References: + /// - + /// - + /// - + /// - + create-udp-socket: func(address-family: ip-address-family) -> result; +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/udp.wit b/components/moonbit/http-hello-world/wit/deps/sockets/udp.wit new file mode 100644 index 0000000..d987a0a --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/udp.wit @@ -0,0 +1,266 @@ + +interface udp { + use wasi:io/poll@0.2.0.{pollable}; + use network.{network, error-code, ip-socket-address, ip-address-family}; + + /// A received datagram. + record incoming-datagram { + /// The payload. + /// + /// Theoretical max size: ~64 KiB. In practice, typically less than 1500 bytes. + data: list, + + /// The source address. + /// + /// This field is guaranteed to match the remote address the stream was initialized with, if any. + /// + /// Equivalent to the `src_addr` out parameter of `recvfrom`. + remote-address: ip-socket-address, + } + + /// A datagram to be sent out. + record outgoing-datagram { + /// The payload. + data: list, + + /// The destination address. + /// + /// The requirements on this field depend on how the stream was initialized: + /// - with a remote address: this field must be None or match the stream's remote address exactly. + /// - without a remote address: this field is required. + /// + /// If this value is None, the send operation is equivalent to `send` in POSIX. Otherwise it is equivalent to `sendto`. + remote-address: option, + } + + + + /// A UDP socket handle. + resource udp-socket { + /// Bind the socket to a specific network on the provided IP address and port. + /// + /// If the IP address is zero (`0.0.0.0` in IPv4, `::` in IPv6), it is left to the implementation to decide which + /// network interface(s) to bind to. + /// If the port is zero, the socket will be bound to a random free port. + /// + /// # Typical errors + /// - `invalid-argument`: The `local-address` has the wrong address family. (EAFNOSUPPORT, EFAULT on Windows) + /// - `invalid-state`: The socket is already bound. (EINVAL) + /// - `address-in-use`: No ephemeral ports available. (EADDRINUSE, ENOBUFS on Windows) + /// - `address-in-use`: Address is already in use. (EADDRINUSE) + /// - `address-not-bindable`: `local-address` is not an address that the `network` can bind to. (EADDRNOTAVAIL) + /// - `not-in-progress`: A `bind` operation is not in progress. + /// - `would-block`: Can't finish the operation, it is still in progress. (EWOULDBLOCK, EAGAIN) + /// + /// # Implementors note + /// Unlike in POSIX, in WASI the bind operation is async. This enables + /// interactive WASI hosts to inject permission prompts. Runtimes that + /// don't want to make use of this ability can simply call the native + /// `bind` as part of either `start-bind` or `finish-bind`. + /// + /// # References + /// - + /// - + /// - + /// - + start-bind: func(network: borrow, local-address: ip-socket-address) -> result<_, error-code>; + finish-bind: func() -> result<_, error-code>; + + /// Set up inbound & outbound communication channels, optionally to a specific peer. + /// + /// This function only changes the local socket configuration and does not generate any network traffic. + /// On success, the `remote-address` of the socket is updated. The `local-address` may be updated as well, + /// based on the best network path to `remote-address`. + /// + /// When a `remote-address` is provided, the returned streams are limited to communicating with that specific peer: + /// - `send` can only be used to send to this destination. + /// - `receive` will only return datagrams sent from the provided `remote-address`. + /// + /// This method may be called multiple times on the same socket to change its association, but + /// only the most recently returned pair of streams will be operational. Implementations may trap if + /// the streams returned by a previous invocation haven't been dropped yet before calling `stream` again. + /// + /// The POSIX equivalent in pseudo-code is: + /// ```text + /// if (was previously connected) { + /// connect(s, AF_UNSPEC) + /// } + /// if (remote_address is Some) { + /// connect(s, remote_address) + /// } + /// ``` + /// + /// Unlike in POSIX, the socket must already be explicitly bound. + /// + /// # Typical errors + /// - `invalid-argument`: The `remote-address` has the wrong address family. (EAFNOSUPPORT) + /// - `invalid-argument`: The IP address in `remote-address` is set to INADDR_ANY (`0.0.0.0` / `::`). (EDESTADDRREQ, EADDRNOTAVAIL) + /// - `invalid-argument`: The port in `remote-address` is set to 0. (EDESTADDRREQ, EADDRNOTAVAIL) + /// - `invalid-state`: The socket is not bound. + /// - `address-in-use`: Tried to perform an implicit bind, but there were no ephemeral ports available. (EADDRINUSE, EADDRNOTAVAIL on Linux, EAGAIN on BSD) + /// - `remote-unreachable`: The remote address is not reachable. (ECONNRESET, ENETRESET, EHOSTUNREACH, EHOSTDOWN, ENETUNREACH, ENETDOWN, ENONET) + /// - `connection-refused`: The connection was refused. (ECONNREFUSED) + /// + /// # References + /// - + /// - + /// - + /// - + %stream: func(remote-address: option) -> result, error-code>; + + /// Get the current bound address. + /// + /// POSIX mentions: + /// > If the socket has not been bound to a local name, the value + /// > stored in the object pointed to by `address` is unspecified. + /// + /// WASI is stricter and requires `local-address` to return `invalid-state` when the socket hasn't been bound yet. + /// + /// # Typical errors + /// - `invalid-state`: The socket is not bound to any local address. + /// + /// # References + /// - + /// - + /// - + /// - + local-address: func() -> result; + + /// Get the address the socket is currently streaming to. + /// + /// # Typical errors + /// - `invalid-state`: The socket is not streaming to a specific remote address. (ENOTCONN) + /// + /// # References + /// - + /// - + /// - + /// - + remote-address: func() -> result; + + /// Whether this is a IPv4 or IPv6 socket. + /// + /// Equivalent to the SO_DOMAIN socket option. + address-family: func() -> ip-address-family; + + /// Equivalent to the IP_TTL & IPV6_UNICAST_HOPS socket options. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// + /// # Typical errors + /// - `invalid-argument`: (set) The TTL value must be 1 or higher. + unicast-hop-limit: func() -> result; + set-unicast-hop-limit: func(value: u8) -> result<_, error-code>; + + /// The kernel buffer space reserved for sends/receives on this socket. + /// + /// If the provided value is 0, an `invalid-argument` error is returned. + /// Any other value will never cause an error, but it might be silently clamped and/or rounded. + /// I.e. after setting a value, reading the same setting back may return a different value. + /// + /// Equivalent to the SO_RCVBUF and SO_SNDBUF socket options. + /// + /// # Typical errors + /// - `invalid-argument`: (set) The provided value was 0. + receive-buffer-size: func() -> result; + set-receive-buffer-size: func(value: u64) -> result<_, error-code>; + send-buffer-size: func() -> result; + set-send-buffer-size: func(value: u64) -> result<_, error-code>; + + /// Create a `pollable` which will resolve once the socket is ready for I/O. + /// + /// Note: this function is here for WASI Preview2 only. + /// It's planned to be removed when `future` is natively supported in Preview3. + subscribe: func() -> pollable; + } + + resource incoming-datagram-stream { + /// Receive messages on the socket. + /// + /// This function attempts to receive up to `max-results` datagrams on the socket without blocking. + /// The returned list may contain fewer elements than requested, but never more. + /// + /// This function returns successfully with an empty list when either: + /// - `max-results` is 0, or: + /// - `max-results` is greater than 0, but no results are immediately available. + /// This function never returns `error(would-block)`. + /// + /// # Typical errors + /// - `remote-unreachable`: The remote address is not reachable. (ECONNRESET, ENETRESET on Windows, EHOSTUNREACH, EHOSTDOWN, ENETUNREACH, ENETDOWN, ENONET) + /// - `connection-refused`: The connection was refused. (ECONNREFUSED) + /// + /// # References + /// - + /// - + /// - + /// - + /// - + /// - + /// - + /// - + receive: func(max-results: u64) -> result, error-code>; + + /// Create a `pollable` which will resolve once the stream is ready to receive again. + /// + /// Note: this function is here for WASI Preview2 only. + /// It's planned to be removed when `future` is natively supported in Preview3. + subscribe: func() -> pollable; + } + + resource outgoing-datagram-stream { + /// Check readiness for sending. This function never blocks. + /// + /// Returns the number of datagrams permitted for the next call to `send`, + /// or an error. Calling `send` with more datagrams than this function has + /// permitted will trap. + /// + /// When this function returns ok(0), the `subscribe` pollable will + /// become ready when this function will report at least ok(1), or an + /// error. + /// + /// Never returns `would-block`. + check-send: func() -> result; + + /// Send messages on the socket. + /// + /// This function attempts to send all provided `datagrams` on the socket without blocking and + /// returns how many messages were actually sent (or queued for sending). This function never + /// returns `error(would-block)`. If none of the datagrams were able to be sent, `ok(0)` is returned. + /// + /// This function semantically behaves the same as iterating the `datagrams` list and sequentially + /// sending each individual datagram until either the end of the list has been reached or the first error occurred. + /// If at least one datagram has been sent successfully, this function never returns an error. + /// + /// If the input list is empty, the function returns `ok(0)`. + /// + /// Each call to `send` must be permitted by a preceding `check-send`. Implementations must trap if + /// either `check-send` was not called or `datagrams` contains more items than `check-send` permitted. + /// + /// # Typical errors + /// - `invalid-argument`: The `remote-address` has the wrong address family. (EAFNOSUPPORT) + /// - `invalid-argument`: The IP address in `remote-address` is set to INADDR_ANY (`0.0.0.0` / `::`). (EDESTADDRREQ, EADDRNOTAVAIL) + /// - `invalid-argument`: The port in `remote-address` is set to 0. (EDESTADDRREQ, EADDRNOTAVAIL) + /// - `invalid-argument`: The socket is in "connected" mode and `remote-address` is `some` value that does not match the address passed to `stream`. (EISCONN) + /// - `invalid-argument`: The socket is not "connected" and no value for `remote-address` was provided. (EDESTADDRREQ) + /// - `remote-unreachable`: The remote address is not reachable. (ECONNRESET, ENETRESET on Windows, EHOSTUNREACH, EHOSTDOWN, ENETUNREACH, ENETDOWN, ENONET) + /// - `connection-refused`: The connection was refused. (ECONNREFUSED) + /// - `datagram-too-large`: The datagram is too large. (EMSGSIZE) + /// + /// # References + /// - + /// - + /// - + /// - + /// - + /// - + /// - + /// - + send: func(datagrams: list) -> result; + + /// Create a `pollable` which will resolve once the stream is ready to send again. + /// + /// Note: this function is here for WASI Preview2 only. + /// It's planned to be removed when `future` is natively supported in Preview3. + subscribe: func() -> pollable; + } +} diff --git a/components/moonbit/http-hello-world/wit/deps/sockets/world.wit b/components/moonbit/http-hello-world/wit/deps/sockets/world.wit new file mode 100644 index 0000000..f8bb92a --- /dev/null +++ b/components/moonbit/http-hello-world/wit/deps/sockets/world.wit @@ -0,0 +1,11 @@ +package wasi:sockets@0.2.0; + +world imports { + import instance-network; + import network; + import udp; + import udp-create-socket; + import tcp; + import tcp-create-socket; + import ip-name-lookup; +} diff --git a/components/moonbit/http-hello-world/wit/world.wit b/components/moonbit/http-hello-world/wit/world.wit new file mode 100644 index 0000000..2874960 --- /dev/null +++ b/components/moonbit/http-hello-world/wit/world.wit @@ -0,0 +1,5 @@ +package wasmcloud:example; + +world server { + export wasi:http/incoming-handler@0.2.0; +} \ No newline at end of file diff --git a/components/moonbit/http-hello-world/worlds/server/import.mbt b/components/moonbit/http-hello-world/worlds/server/import.mbt new file mode 100644 index 0000000..b198d91 --- /dev/null +++ b/components/moonbit/http-hello-world/worlds/server/import.mbt @@ -0,0 +1 @@ +// Generated by `wit-bindgen` 0.29.0. DO NOT EDIT! diff --git a/components/moonbit/http-hello-world/worlds/server/moon.pkg.json b/components/moonbit/http-hello-world/worlds/server/moon.pkg.json new file mode 100644 index 0000000..6f31cf5 --- /dev/null +++ b/components/moonbit/http-hello-world/worlds/server/moon.pkg.json @@ -0,0 +1 @@ +{ } \ No newline at end of file diff --git a/components/moonbit/http-hello-world/worlds/server/top.mbt b/components/moonbit/http-hello-world/worlds/server/top.mbt new file mode 100644 index 0000000..b198d91 --- /dev/null +++ b/components/moonbit/http-hello-world/worlds/server/top.mbt @@ -0,0 +1 @@ +// Generated by `wit-bindgen` 0.29.0. DO NOT EDIT!