Changed the protocol for messages exchange to WebSocket

Changed the protocol for messages exchange, it now uses WebSocket internally.
This change allows running `udptlspipe` server behind a CDN if that CDN
supports WebSocket.

CHANGELOG.md

@@ -11,7 +11,15 @@ adheres to [Semantic Versioning][semver].
 
 ## [Unreleased]
 
-[unreleased]: https://github.com/ameshkov/udptlspipe/compare/v1.1.0...HEAD
+[unreleased]: https://github.com/ameshkov/udptlspipe/compare/v1.2.0...HEAD
+
+## [1.2.0] - 2024-02-05
+
+* Changed the protocol for messages exchange, it now uses WebSocket internally.
+  This change allows running `udptlspipe` server behind a CDN if that CDN
+  supports WebSocket.
+
+[1.2.0]: https://github.com/ameshkov/udptlspipe/releases/tag/v1.2.0
 
 ## [1.1.0] - 2024-02-03
 

README.md

@@ -26,9 +26,13 @@ to keep it that way.
 
 * Cross-platform (Windows/macOS/Linux/Android/*BSD).
 * Simple configuration, no complicated configuration files.
-* Mimics Google Chrome's TLS ClientHello.
+* Mimics Android's okhttp library.
 * Active probing protection in server mode.
 * Suitable to wrap WireGuard, OpenVPN, and other UDP session.
+* Uses WebSocket for data transfer so can be behind
+  [a CDN that supports WS][cdnwebsocket].
+
+[cdnwebsocket]: https://www.cdnplanet.com/guides/websockets/
 
 <a id="why"></a>
 
@@ -226,5 +230,6 @@ Help Options:
 
 * [X] Docker image.
 * [X] Certificate configuration.
-* [ ] Use WebSocket for transport instead of the custom binary proto.
+* [X] Use WebSocket for transport instead of the custom binary proto.
+* [ ] Use several upstream connections instead of a single one.
 * [ ] Automatic TLS certs generation (let's encrypt, lego).

go.mod

@@ -4,21 +4,24 @@ go 1.21.6
 
 require (
 	github.com/AdguardTeam/golibs v0.20.0
+	github.com/gobwas/ws v1.3.2
 	github.com/jessevdk/go-flags v1.5.0
 	github.com/refraction-networking/utls v1.6.2
 	github.com/stretchr/testify v1.8.4
 	golang.org/x/net v0.20.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/andybalholm/brotli v1.0.6 // indirect
 	github.com/cloudflare/circl v1.3.7 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/gobwas/httphead v0.1.0 // indirect
+	github.com/gobwas/pool v0.2.1 // indirect
 	github.com/klauspost/compress v1.17.4 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/quic-go/quic-go v0.40.1 // indirect
 	golang.org/x/crypto v0.18.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -11,6 +11,12 @@ github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
 github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
+github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
+github.com/gobwas/httphead v0.1.0/go.mod h1:O/RXo79gxV8G+RqlR/otEwx4Q36zl9rqC5u12GKvMCM=
+github.com/gobwas/pool v0.2.1 h1:xfeeEhW7pwmX8nuLVlqbzVc7udMDrwetjEv+TZIz1og=
+github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
+github.com/gobwas/ws v1.3.2 h1:zlnbNHxumkRvfPWgfXu8RBwyNR1x8wh9cf5PTOCqs9Q=
+github.com/gobwas/ws v1.3.2/go.mod h1:hRKAFb8wOxFROYNsT1bqfWnhX+b5MFeJM9r2ZSwg/KY=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38 h1:yAJXTCF9TqKcTiHJAE8dj7HMvPfh66eeA2JYW7eFpSE=
@@ -43,6 +49,7 @@ golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1m
 golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
 golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
 golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
 golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=

internal/cmd/cmd.go

@@ -10,12 +10,11 @@ import (
 	"syscall"
 	"time"
 
-	tls "github.com/refraction-networking/utls"
-
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/ameshkov/udptlspipe/internal/pipe"
 	"github.com/ameshkov/udptlspipe/internal/version"
 	goFlags "github.com/jessevdk/go-flags"
+	tls "github.com/refraction-networking/utls"
 )
 
 // Main is the entry point for the command-line tool.