Add pow

.prettierrc

@@ -0,0 +1,12 @@
+{
+ "singleQuote": false,
+ "printWidth": 80,
+ "overrides": [
+ {
+ "files": ["**/*.html"],
+ "options": {
+ "printWidth": 120
+ }
+ }
+ ]
+}

Cargo.toml

@@ -18,15 +18,20 @@ fuel-types = "0.43.0"
 fuels-accounts = "0.54.0"
 fuels-core = "0.54.0"
 handlebars = "4.2"
+hex = "0.4.3"
 lazy_static = "1.4"
 memoize = "0.3.1"
+num-bigint = "0.4"
+rand = "0.8.5"
 reqwest = { version = "0.11", features = ["json", "rustls-tls-webpki-roots"], default-features = false }
 secrecy = "0.8"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0" }
+sha2 = "0.10"
+sha256 = "1.1.4"
 tokio = { version = "1.0", features = ["full"] }
 tower = { version = "0.4", features = ["buffer", "limit", "load-shed", "util", "timeout"] }
-tower-http = { version = "0.2.5", features = ["cors", "trace", "set-header"] }
+tower-http = { version = "0.2.5", features = ["cors", "trace", "set-header", "fs"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
 

README.md

@@ -1,26 +1,28 @@
-Faucet App
-===
+# Faucet App
+
 [![build](https://github.com/FuelLabs/faucet/actions/workflows/ci.yml/badge.svg)](https://github.com/FuelLabs/faucet/actions/workflows/ci.yml)
 [![discord](https://img.shields.io/badge/chat%20on-discord-orange?&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)](https://discord.gg/xfpK4Pe)
 
 A simple faucet app for dispensing tokens on a fuel network. It uses Google captcha for spam resistance
 without requiring any social media based identification.
 
 ## Configuration
+
 The faucet makes use of environment variables for configuration.
 
-| Environment Variable | Description |
-|----------------------|-------------------------------------------------------------------------|
-| RUST_LOG | EnvFilter configuration for adjusting logging granularity. |
-| HUMAN_LOGGING | If false, logs will be output as machine readable JSON. |
-| CAPTCHA_SECRET | The secret key used for enabling Google captcha authentication. |
-| CAPTCHA_KEY | The website key used for enabling Google captcha authentication. |
-| WALLET_SECRET_KEY | A hex formatted string of the wallet private key that owns some tokens. |
-| FUEL_NODE_URL | The GraphQL endpoint for connecting to fuel-core. |
+| Environment Variable | Description  |
+| -------------------- | ----------------------------------------------------------------------------------------------- |
+| RUST_LOG | EnvFilter configuration for adjusting logging granularity.  |
+| HUMAN_LOGGING | If false, logs will be output as machine readable JSON.  |
+| CAPTCHA_SECRET | The secret key used for enabling Google captcha authentication.  |
+| CAPTCHA_KEY | The website key used for enabling Google captcha authentication.  |
+| WALLET_SECRET_KEY | A hex formatted string of the wallet private key that owns some tokens.  |
+| FUEL_NODE_URL | The GraphQL endpoint for connecting to fuel-core.  |
 | PUBLIC_FUEL_NODE_URL | The public GraphQL endpoint for connecting to fuel-core. Ex.: https://node.fuel.network/graphql |
-| SERVICE_PORT | The port the service will listen for http connections on. |
-| DISPENSE_AMOUNT | Dispense amount on each faucet |
-| MIN_GAS_PRICE | The minimum gas price to use in each transfer |
+| SERVICE_PORT | The port the service will listen for http connections on. |
+| DISPENSE_AMOUNT | Dispense amount on each faucet |
+| MIN_GAS_PRICE | The minimum gas price to use in each transfer |
+| POW_DIFFICULTY | Number of leading zeroes that a valid proof of work hash must have |
 
 ## Build and Run
 
@@ -29,3 +31,9 @@ To run locally, assuming environment variables have already been set:
 ```sh
 cargo run
 ```
+
+You will need a fuel node running. You can run one with the default configuration to make the faucet work:
+
+```sh
+fuel-core run --chain ./chain_config.json --db-type in-memory
+```

build.rs

@@ -3,10 +3,14 @@ use std::{env, fs, path::Path};
 
 fn main() {
  let out_dir = env::var("OUT_DIR").unwrap();
- let dest_path = Path::new(&out_dir).join("index.html");
+ let html_dest_path = Path::new(&out_dir).join("index.html");
  let page = include_bytes!("./static/index.html");
  let minified = minify_html::minify(page, &Cfg::spec_compliant());
- fs::write(dest_path, minified).expect("failed to save minified index page");
+ fs::write(html_dest_path, minified).expect("failed to save minified index page");
+
+ let worker_dest_path = Path::new(&out_dir).join("worker.js");
+ let worker_script = include_bytes!("./static/worker.js");
+ fs::write(worker_dest_path, worker_script).expect("failed to save worker script");
 
  println!("cargo:rerun-if-changed=static");
 }

chain_config.json

@@ -0,0 +1,160 @@
+{
+ "chain_name": "local",
+ "block_gas_limit": 1000000000,
+ "initial_state": {
+ "coins": [
+ {
+ "owner": "0x5b96f1d44868f0fec7416a020fa4bbcdb511462e474b8d988f66210fd892468d",
+ "amount": "0xff00000000000000",
+ "asset_id": "0x0000000000000000000000000000000000000000000000000000000000000000"
+ }
+ ]
+ },
+ "consensus_parameters": {
+ "tx_params": {
+ "max_inputs": 255,
+ "max_outputs": 255,
+ "max_witnesses": 255,
+ "max_gas_per_tx": 100000000,
+ "max_size": 17825792
+ },
+ "predicate_params": {
+ "max_predicate_length": 1048576,
+ "max_predicate_data_length": 1048576,
+ "max_message_data_length": 1048576,
+ "max_gas_per_predicate": 100000000
+ },
+ "script_params": {
+ "max_script_length": 1048576,
+ "max_script_data_length": 1048576
+ },
+ "contract_params": {
+ "contract_max_size": 16777216,
+ "max_storage_slots": 255
+ },
+ "fee_params": { "gas_price_factor": 1000000000, "gas_per_byte": 4 },
+ "chain_id": 0,
+ "gas_costs": {
+ "add": 1,
+ "addi": 1,
+ "aloc": 1,
+ "and": 1,
+ "andi": 1,
+ "bal": 13,
+ "bhei": 1,
+ "bhsh": 1,
+ "burn": 132,
+ "cb": 1,
+ "cfei": 1,
+ "cfsi": 1,
+ "croo": 16,
+ "div": 1,
+ "divi": 1,
+ "eck1": 951,
+ "ecr1": 3000,
+ "ed19": 3000,
+ "eq": 1,
+ "exp": 1,
+ "expi": 1,
+ "flag": 1,
+ "gm": 1,
+ "gt": 1,
+ "gtf": 1,
+ "ji": 1,
+ "jmp": 1,
+ "jne": 1,
+ "jnei": 1,
+ "jnzi": 1,
+ "jmpf": 1,
+ "jmpb": 1,
+ "jnzf": 1,
+ "jnzb": 1,
+ "jnef": 1,
+ "jneb": 1,
+ "lb": 1,
+ "log": 9,
+ "lt": 1,
+ "lw": 1,
+ "mint": 135,
+ "mlog": 1,
+ "mod": 1,
+ "modi": 1,
+ "move": 1,
+ "movi": 1,
+ "mroo": 2,
+ "mul": 1,
+ "muli": 1,
+ "mldv": 1,
+ "noop": 1,
+ "not": 1,
+ "or": 1,
+ "ori": 1,
+ "poph": 2,
+ "popl": 2,
+ "pshh": 2,
+ "pshl": 2,
+ "ret_contract": 13,
+ "rvrt_contract": 13,
+ "sb": 1,
+ "sll": 1,
+ "slli": 1,
+ "srl": 1,
+ "srli": 1,
+ "srw": 12,
+ "sub": 1,
+ "subi": 1,
+ "sw": 1,
+ "sww": 67,
+ "time": 1,
+ "tr": 105,
+ "tro": 60,
+ "wdcm": 1,
+ "wqcm": 1,
+ "wdop": 1,
+ "wqop": 1,
+ "wdml": 1,
+ "wqml": 1,
+ "wddv": 1,
+ "wqdv": 2,
+ "wdmd": 3,
+ "wqmd": 4,
+ "wdam": 2,
+ "wqam": 3,
+ "wdmm": 3,
+ "wqmm": 3,
+ "xor": 1,
+ "xori": 1,
+ "call": { "LightOperation": { "base": 144, "units_per_gas": 214 } },
+ "ccp": { "LightOperation": { "base": 15, "units_per_gas": 103 } },
+ "csiz": { "LightOperation": { "base": 17, "units_per_gas": 790 } },
+ "k256": { "LightOperation": { "base": 11, "units_per_gas": 214 } },
+ "ldc": { "LightOperation": { "base": 15, "units_per_gas": 272 } },
+ "logd": { "LightOperation": { "base": 26, "units_per_gas": 64 } },
+ "mcl": { "LightOperation": { "base": 1, "units_per_gas": 3333 } },
+ "mcli": { "LightOperation": { "base": 1, "units_per_gas": 3333 } },
+ "mcp": { "LightOperation": { "base": 1, "units_per_gas": 2000 } },
+ "mcpi": { "LightOperation": { "base": 3, "units_per_gas": 2000 } },
+ "meq": { "LightOperation": { "base": 1, "units_per_gas": 2500 } },
+ "retd_contract": {
+ "LightOperation": { "base": 29, "units_per_gas": 62 }
+ },
+ "s256": { "LightOperation": { "base": 2, "units_per_gas": 214 } },
+ "scwq": { "LightOperation": { "base": 13, "units_per_gas": 5 } },
+ "smo": { "LightOperation": { "base": 209, "units_per_gas": 55 } },
+ "srwq": { "LightOperation": { "base": 47, "units_per_gas": 5 } },
+ "swwq": { "LightOperation": { "base": 44, "units_per_gas": 5 } },
+ "contract_root": { "LightOperation": { "base": 75, "units_per_gas": 1 } },
+ "state_root": { "LightOperation": { "base": 412, "units_per_gas": 1 } },
+ "new_storage_per_byte": 1,
+ "vm_initialization": {
+ "HeavyOperation": { "base": 2000, "gas_per_unit": 0 }
+ }
+ },
+ "base_asset_id": "0000000000000000000000000000000000000000000000000000000000000000"
+ },
+ "consensus": {
+ "PoA": {
+ "signing_key": "22ec92c3105c942a6640bdc4e4907286ec4728e8cfc0d8ac59aad4d8e1ccaefb"
+ }
+ }
+}