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Changelog

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HEAD

v2.4.13 2024-04-22

  • Release tagged for arm64 docker building only.

v2.4.12 2024-04-20

  • Update library dependencies.

  • Fix docker and github packages publishing issue.

v2.4.11 2024-04-03

  • Update library dependencies.

  • Build with Go-1.22.2

v2.4.10 2024-03-17

  • Update library dependencies.

v2.4.9 2024-02-16

  • Minimum Go version now 1.21 due to quic-go dependency, due to better cryto/tls support for QUIC in Go-1.21.

  • Update library dependencies.

v2.4.8 2023-12-19

  • Add --automaxprocs flag to set GOMAXPROCS automatically to match Linux container CPU quota/limits.

  • Update library dependencies.

v2.4.7 - 2023-11-13

  • Add http3/quic server support. New flag --quic. Requires --ssl-listen.

v2.4.6 - 2023-10-25

  • Add --no-debug-vars flag to disable /debug/vars when --metrics is enabled. (#66, #67)

v2.4.5 - 2023-10-23

  • fix htrie matching of non punycode (eg. unicode) idna hostnames

  • slightly faster logging (update to mlog dependency)

  • address a logging issue with missing url path output in "built outgoing request" debug log

  • moderate improve performance of hostname rule processing (approx 12-30% in microbenchmarks)

  • slight improvement in request path url processing (approx 2-4% in microbenchmarks)

  • fix /debug/vars being enabled by default (#65) due to expvars import side effect

v2.4.4 - 2023-07-25

  • update dependencies

  • bump version in go.mod (and fix all internal module references)
    ref: discussion #62

v2.4.3 - 2023-02-18

v2.4.2 - 2023-02-16

  • update library dependency prometheus, covering CVE-2022-21698.
    Note that for go-camo, the issue in the prometheus library was exploitable only when the metrics option/flag (--metrics) is enabled.

  • build with go1.19.5

v2.4.1 - 2022-09-28

  • Rebuild release with go-1.19.1

v2.4.0 - 2022-01-30

  • Add support for internal address proxies (HTTP(S)_PROXY).
    issue #55

  • Add some additional documentation/caveats regarding HTTP(S)_PROXY usage.

v2.3.0 - 2021-10-20

  • Add support for listening on a unix socket.

  • A more graceful shutdown process, under SIGINT or SIGTERM.

v2.2.2 - 2021-08-21

  • Change test only helper library

  • structure logging (json) support for http requests (debug logging).
    PR #52

v2.2.1 - 2021-03-25

  • Update some dependencies.

v2.2.0 - 2021-01-10

  • Move ip filtering to Dialer.Control, to further improve SSRF protections.
    Note: Added a few additional debug log messages emitted when ip filtering

v2.1.5 - 2020-08-11

  • Rebuild release with go-1.15

v2.1.4 - 2020-02-18

  • Rebuild release with go-1.13.8

  • Experimental windows build

v2.1.3 - 2019-12-18

  • Rebuild release with go-1.13.5

v2.1.2 - 2019-11-17

  • Fix for enabling metrics collection in proxy

v2.1.1 - 2019-11-12

v2.1.0 - 2019-10-02

  • Support audio/* with --allow-content-audio flag (similar to how video is handled)

  • Additional metrics datapoints when using --metrics

  • Support only go 1.13, due to use of new error wrapping semantics

  • Improve client connection early abort handling

  • Improve max response side handling — only read MaxSize KB from any upstream server. Note: This may result in partial responses to clients for chunked encoding requests that are longer than MaxSize, as there is no way to signal the client other than closing the connection.

  • Change default of --max-size to 0, as previously chunked encoding responses bypassed size restrictions (only content-length was previously enforced). To avoid unexpected failures (preserve backwards compatibility in this regard), set max-size to 0 by default moving forward. Previous default was 5mb (use --max-size=5120 to set to previous default).

v2.0.1 - 2019-09-12

  • Slightly optimize some structure layouts to reduce memory overhead.

  • Switch htrie node map from uint8 to uint32, due to go map optimizations. See commit bbf7b9ffee83 for more info.

  • Update man page generation (makefile) to use asciidoctor. Not only is this easier to maintain, but it has the nice property of being rendered on github.

v2.0.0 - 2019-09-08

  • Remove --allow-list flag, and replace with a unified filtering flag filter-ruleset. See go-camo-filtering(5) for more information on the accepted syntax.

  • Update man pages.

  • Refactor some internals (remove some regex in favor of a trie like data structure for some comparisons)

v1.1.7 - 2019-08-14

  • Remove old stats flag, endpoint, and feature, in favor of the new Prometheus endpoint. Good amount of code removal as well.

  • Use a sync.Pool []byte buffer for io.CopyBuffer (instead of io.Copy). It should reduce some small amount of GC pressure (a bit less garbage).

v1.1.6 - 2019-07-26

  • Support range requests to get safari video support working (#36)

v1.1.5 - 2019-07-23

  • Security fixes / SSRF

    • Fix: Ensure non-GET/HEAD request does not send outbound request (#35)

    • Fix: Validate redirect urls the same as initial urls (#35)

  • Split out exception for missing content types (#32)

  • Prometheus compatible metrics endpoint added (#34)

  • Disabled credential/userinfo (user:pass@ style) type urls by default. Added cli flag (--allow-credential-urls) to retain prior behavior (which allows them).

v1.1.4 - 2019-02-26

  • disable passing/generating x-forwarded-for header by default

  • add new --enable-xfwd4 flag to enable x-forwarded-for header passing/generation

  • add optional json output for stats

  • remove gomaxprocs code, as it is no longer necessary

  • documentation fixes (man page update, spelling, etc)

  • build release with go-1.12

v1.1.3 - 2018-09-15

  • switch to go-1.11 w/GO111MODULE support.
    this makes building outside GOPATH easy.
    Looks like heroku supports it now too? (heroku-buildpack-go issue #249)

  • build release with go-1.11

  • fix ipv6 length comparison

v1.1.2 - 2018-07-30

  • fix SSRF leak, where certain requests would not match defined and custom ip deny-lists as expected

v1.1.1 - 2018-07-18

  • change /healthcheck response to 200 instead of 204.
    solves configuration issue with some loadbalancers.

v1.1.0 - 2018-07-16

  • add flag to allow video/* as content type (disabled by default)

  • allow setting custom server name

  • add flag to expose the current version version in http response header (similar to how it is done for -V cli output)

  • change root route to return 404

  • add /healthcheck route that returns 204 status (no body content) useful for load balancers to check that service is running

v1.0.18 - 2018-05-15

  • change repo layout and build pipeline to dep/gox/GOPATH style

  • lint fixes and minor struct alignment changes (minor optimization)

  • update mlog dependency

  • build with go-1.10.2

v1.0.17 - 2018-01-25

  • update dependency versions to current

  • include deps in tree (ease build for heroku)

  • minor makefile cleanup

  • rebuild with go-1.9.3

v1.0.16 - 2017-08-29

  • rebuild with go-1.9

v1.0.15 - 2017-02-18

  • rebuild with go-1.8

  • strip binaries as part of default build

v1.0.14 - 2017-02-15

  • Pass through ETag header from server. The previous omission was inconsistent with passing the if-none-match client request header.

v1.0.13 - 2017-01-22

  • resolve potential resource leak with redirection failures and http response body closing

v1.0.12 - 2017-01-16

  • better address rejection logic

v1.0.11 - 2017-01-16

  • resolve hostname and check against rfc1918 (best effort blocking of dns rebind attacks)

  • fix regex match bug with 172.16.0.0/12 addresses (over eager match)

v1.0.10 - 2017-01-03

  • apply a more friendly default content-security-policy

v1.0.9 - 2016-11-27

  • just a rebuild of 1.0.8 with go 1.7.3

v1.0.8 - 2016-08-20

  • update go version support

  • build release with go1.7

v1.0.7 - 2016-04-18

  • conver to different logging mechanism (mlog)

  • fix a go16 logging issue

  • add --no-log-ts command line option

v1.0.6 - 2016-04-07

  • use sync/atomic for internal stats counters

  • reorganize some struct memory layout a little

  • add -VV license info output

  • move simple-server to its own repo

  • more performant stats (replaced mutex with sync/atomic)

  • fewer spawned goroutines when using stats

v1.0.5 - 2016-02-18

  • Build release with go1.6

  • Switch to building with gb

v1.0.4 - 2015-08-28

  • Minor change for go1.5 with proxy timeout 504

v1.0.3 - 2015-04-25

  • revert to stdlib http client

v1.0.2 - 2015-03-08

  • fix issue with http date header generation

v1.0.1 - 2014-12-16

  • optimization for allow-list checks

  • keepalive options fix

v1.0.0 - 2014-06-22

  • minor code organization changes

  • fix for heroku build issue with example code

v0.6.0 - 2014-06-13

  • use simple router instead of gorilla/mux to reduce overhead and increase performance.

  • move some code from camo proxy into the simple router

v0.5.0 - 2014-06-02

  • some minor changes to Makefile/building

  • add support for HTTP HEAD requests

  • add support for adding custom default response headers

  • return custom headers on 404s as well.

  • enable http keepalives on upstream/backends

  • add support for disable http keepalives on frontend/backend separately

  • upgrade library deps

  • various bug fixes

v0.4.0 - 2014-05-23

  • remove config support (use env or cli flags)

  • turn allowlist into a cli flag to parse a plain text file vs json config

  • clean ups/general code hygiene

v0.3.0 - 2014-05-13

  • Transparent base64 url support

v0.2.0 - 2014-04-17

v0.1.3 - 2013-06-24

  • fix bug in loop prevention

  • bump max idle conn count

  • keep idle conn trimmer running

v0.1.2 - 2013-03-30

  • Add ReadTimeout to http.Server, to close excessive keepalive goroutines

v0.1.1 - 2013-02-27

  • optimize date header generation to use a ticker

  • performance improvements

  • fix a few subtle race conditions with stats

v0.1.0 - 2013-01-19

  • Refactor logging a bit

  • Move encoding functionality into a submodule to reduce import size (and thus resultant binary size) for url-tool

  • Prevent request loop

  • Remove custom Denylist support. Filtering should be done on signed url generation. rfc1918 filtering retained and internalized so as do reduce internal network exposue surface and avoid non-routable effort.

  • Inverted redirect boolean. Redirects are now followed by default, and the flag no-follow was learned.

  • Use new flag parsing library for nicer help and cleaner usage.

  • Specify a fallback accept header if none is provided by client.

v0.0.4 - 2012-09-02

  • Refactor Stats code out of camoproxy

  • Make stats an optional flag in go-camo

  • Minor documentation cleanup

  • Clean up excessive logging on client initiated broken pipe

v0.0.3 - 2012-08-05

  • organize and clean up code

  • make header filters exported

  • start filtering response headers

  • add default Server name

  • fix bug dealing with header filtering logic

  • add cli utility to encode/decode urls for testing, etc.

  • change repo layout to be friendlier for Go development/building

  • timeout flag is now a duration (15s, 10m, 1h, etc)

  • X-Forwarded-For support

  • Added more info to readme

v0.0.2 - 2012-07-12

  • documentation cleanup

  • code reorganization

  • some cleanup of command flag text

  • logging code simplification

v0.0.1 - 2012-07-07

  • initial release