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Code Issues 18 Packages Projects Releases 10 Wiki Activity

fix: optimize memory usage, fix agent and code refactor (#118)

Browse Source 
* refactor: simplify io code and make utils module independent

* fix(docker): agent and socket-proxy docker event flushing with modified reverse proxy handler

* refactor: remove unused code

* refactor: remove the use of logging module in most code

* refactor: streamline domain mismatch check in certState function

* tweak: use ecdsa p-256 for autocert

* fix(tests): update health check tests for invalid host and add case for port in host

* feat(acme): custom acme directory

* refactor: code refactor and improved context and error handling

* tweak: optimize memory usage under load

* fix(oidc): restore old user matching behavior

* docs: add ChatGPT assistant to README

---------

Co-authored-by: yusing <yusing@6uo.me>
This commit is contained in:
Yuzerion
2025-05-25 09:45:57 +08:00
committed by GitHub
parent ff08c40403
commit 4a8bd48ad5
98 changed files with 1549 additions and 555 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
socket-proxy/go.mod
View File

@@ -2,4 +2,19 @@ module github.com/yusing/go-proxy/socketproxy
go 1.24.3
require github.com/gorilla/mux v1.8.1
replace github.com/yusing/go-proxy/internal/utils => ../internal/utils
require (
github.com/gorilla/mux v1.8.1
github.com/yusing/go-proxy/internal/utils v0.0.0-00010101000000-000000000000
golang.org/x/net v0.40.0
)
require (
github.com/mattn/go-colorable v0.1.14 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/rs/zerolog v1.34.0 // indirect
go.uber.org/atomic v1.11.0 // indirect
golang.org/x/sys v0.33.0 // indirect
golang.org/x/text v0.25.0 // indirect
)

32
socket-proxy/go.sum
View File

@@ -1,2 +1,34 @@
github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
github.com/rs/zerolog v1.34.0/go.mod h1:bJsvje4Z08ROH4Nhs5iH600c3IkWhwp44iRc54W6wYQ=
github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

17
socket-proxy/pkg/handler.go
View File

@@ -4,30 +4,33 @@ import (
"context"
"net"
"net/http"
"net/http/httputil"
"strings"
"time"
"github.com/gorilla/mux"
"github.com/yusing/go-proxy/socketproxy/pkg/reverseproxy"
)
var dialer = &net.Dialer{KeepAlive: 1 * time.Second}
func dialDockerSocket(ctx context.Context, _, _ string) (net.Conn, error) {
return dialer.DialContext(ctx, "unix", DockerSocket)
func dialDockerSocket(socket string) func(ctx context.Context, _, _ string) (net.Conn, error) {
return func(ctx context.Context, _, _ string) (net.Conn, error) {
return dialer.DialContext(ctx, "unix", socket)
}
}
var DockerSocketHandler = dockerSocketHandler
func dockerSocketHandler() http.HandlerFunc {
rp := &httputil.ReverseProxy{
func dockerSocketHandler(socket string) http.HandlerFunc {
rp := &reverseproxy.ReverseProxy{
Director: func(req *http.Request) {
req.URL.Scheme = "http"
req.URL.Host = "api.moby.localhost"
req.RequestURI = req.URL.String()
},
Transport: &http.Transport{
DialContext: dialDockerSocket,
DialContext: dialDockerSocket(socket),
DisableCompression: true,
},
}
@@ -41,7 +44,7 @@ func endpointNotAllowed(w http.ResponseWriter, _ *http.Request) {
// ref: https://github.com/Tecnativa/docker-socket-proxy/blob/master/haproxy.cfg
func NewHandler() http.Handler {
r := mux.NewRouter()
socketHandler := DockerSocketHandler()
socketHandler := DockerSocketHandler(DockerSocket)
const apiVersionPrefix = `/{version:(?:v[\d\.]+)?}`
const containerPath = "/containers/{id:[a-zA-Z0-9_.-]+}"

2
socket-proxy/pkg/handler_test.go
View File

@@ -9,7 +9,7 @@ import (
. "github.com/yusing/go-proxy/socketproxy/pkg"
)
func mockDockerSocketHandler() http.HandlerFunc {
func mockDockerSocketHandler(_ string) http.HandlerFunc {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("mock docker response"))

367
socket-proxy/pkg/reverseproxy/reverse_proxy.go Normal file
View File

@@ -0,0 +1,367 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// License URL: https://cs.opensource.google/go/go/+/master:LICENSE
// HTTP reverse proxy handler
package reverseproxy
import (
"context"
"errors"
"fmt"
"io"
"log"
"net/http"
"net/http/httptrace"
"net/textproto"
"strings"
"sync"
"github.com/yusing/go-proxy/internal/utils"
"golang.org/x/net/http/httpguts"
)
// ReverseProxy is an HTTP Handler that takes an incoming request and
// sends it to another server, proxying the response back to the
// client.
//
// 1xx responses are forwarded to the client if the underlying
// transport supports ClientTrace.Got1xxResponse.
type ReverseProxy struct {
// Director is a function which modifies
// the request into a new request to be sent
// using Transport. Its response is then copied
// back to the original client unmodified.
// Director must not access the provided Request
// after returning.
//
// By default, the X-Forwarded-For header is set to the
// value of the client IP address. If an X-Forwarded-For
// header already exists, the client IP is appended to the
// existing values. As a special case, if the header
// exists in the Request.Header map but has a nil value
// (such as when set by the Director func), the X-Forwarded-For
// header is not modified.
//
// To prevent IP spoofing, be sure to delete any pre-existing
// X-Forwarded-For header coming from the client or
// an untrusted proxy.
//
// Hop-by-hop headers are removed from the request after
// Director returns, which can remove headers added by
// Director. Use a Rewrite function instead to ensure
// modifications to the request are preserved.
//
// Unparsable query parameters are removed from the outbound
// request if Request.Form is set after Director returns.
//
// At most one of Rewrite or Director may be set.
Director func(*http.Request)
// The transport used to perform proxy requests.
// If nil, http.DefaultTransport is used.
Transport http.RoundTripper
// ErrorLog specifies an optional logger for errors
// that occur when attempting to proxy the request.
// If nil, logging is done via the log package's standard logger.
ErrorLog *log.Logger
// ErrorHandler is an optional function that handles errors
// reaching the backend or errors from ModifyResponse.
//
// If nil, the default is to log the provided error and return
// a 502 Status Bad Gateway response.
ErrorHandler func(http.ResponseWriter, *http.Request, error)
}
func copyHeader(dst, src http.Header) {
for k, vv := range src {
for _, v := range vv {
dst.Add(k, v)
}
}
}
// Hop-by-hop headers. These are removed when sent to the backend.
// As of RFC 7230, hop-by-hop headers are required to appear in the
// Connection header field. These are the headers defined by the
// obsoleted RFC 2616 (section 13.5.1) and are used for backward
// compatibility.
var hopHeaders = []string{
"Connection",
"Proxy-Connection", // non-standard but still sent by libcurl and rejected by e.g. google
"Keep-Alive",
"Proxy-Authenticate",
"Proxy-Authorization",
"Te", // canonicalized version of "TE"
"Trailer", // not Trailers per URL above; https://www.rfc-editor.org/errata_search.php?eid=4522
"Transfer-Encoding",
"Upgrade",
}
func (p *ReverseProxy) defaultErrorHandler(rw http.ResponseWriter, req *http.Request, err error) {
p.logf("http: proxy error: %v", err)
rw.WriteHeader(http.StatusBadGateway)
}
func (p *ReverseProxy) getErrorHandler() func(http.ResponseWriter, *http.Request, error) {
if p.ErrorHandler != nil {
return p.ErrorHandler
}
return p.defaultErrorHandler
}
func (p *ReverseProxy) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
transport := p.Transport
ctx := req.Context()
outreq := req.Clone(ctx)
if req.ContentLength == 0 {
outreq.Body = nil // Issue 16036: nil Body for http.Transport retries
}
if outreq.Body != nil {
// Reading from the request body after returning from a handler is not
// allowed, and the RoundTrip goroutine that reads the Body can outlive
// this handler. This can lead to a crash if the handler panics (see
// Issue 46866). Although calling Close doesn't guarantee there isn't
// any Read in flight after the handle returns, in practice it's safe to
// read after closing it.
defer outreq.Body.Close()
}
if outreq.Header == nil {
outreq.Header = make(http.Header) // Issue 33142: historical behavior was to always allocate
}
p.Director(outreq)
outreq.Close = false
reqUpType := upgradeType(outreq.Header)
if !IsPrint(reqUpType) {
p.getErrorHandler()(rw, req, fmt.Errorf("client tried to switch to invalid protocol %q", reqUpType))
return
}
req.Header.Del("Forwarded")
removeHopByHopHeaders(outreq.Header)
// Issue 21096: tell backend applications that care about trailer support
// that we support trailers. (We do, but we don't go out of our way to
// advertise that unless the incoming client request thought it was worth
// mentioning.) Note that we look at req.Header, not outreq.Header, since
// the latter has passed through removeHopByHopHeaders.
if httpguts.HeaderValuesContainsToken(req.Header["Te"], "trailers") {
outreq.Header.Set("Te", "trailers")
}
if _, ok := outreq.Header["User-Agent"]; !ok {
// If the outbound request doesn't have a User-Agent header set,
// don't send the default Go HTTP client User-Agent.
outreq.Header.Set("User-Agent", "")
}
var (
roundTripMutex sync.Mutex
roundTripDone bool
)
trace := &httptrace.ClientTrace{
Got1xxResponse: func(code int, header textproto.MIMEHeader) error {
roundTripMutex.Lock()
defer roundTripMutex.Unlock()
if roundTripDone {
// If RoundTrip has returned, don't try to further modify
// the ResponseWriter's header map.
return nil
}
h := rw.Header()
copyHeader(h, http.Header(header))
rw.WriteHeader(code)
// Clear headers, it's not automatically done by ResponseWriter.WriteHeader() for 1xx responses
clear(h)
return nil
},
}
outreq = outreq.WithContext(httptrace.WithClientTrace(outreq.Context(), trace))
res, err := transport.RoundTrip(outreq)
roundTripMutex.Lock()
roundTripDone = true
roundTripMutex.Unlock()
if err != nil {
p.getErrorHandler()(rw, outreq, err)
return
}
// Deal with 101 Switching Protocols responses: (WebSocket, h2c, etc)
if res.StatusCode == http.StatusSwitchingProtocols {
p.handleUpgradeResponse(rw, outreq, res)
return
}
removeHopByHopHeaders(res.Header)
copyHeader(rw.Header(), res.Header)
// The "Trailer" header isn't included in the Transport's response,
// at least for *http.Transport. Build it up from Trailer.
announcedTrailers := len(res.Trailer)
if announcedTrailers > 0 {
trailerKeys := make([]string, 0, len(res.Trailer))
for k := range res.Trailer {
trailerKeys = append(trailerKeys, k)
}
rw.Header().Add("Trailer", strings.Join(trailerKeys, ", "))
}
rw.WriteHeader(res.StatusCode)
err = utils.CopyCloseWithContext(ctx, rw, res.Body)
if err != nil {
if !errors.Is(err, context.Canceled) {
p.getErrorHandler()(rw, req, err)
}
return
}
if len(res.Trailer) > 0 {
// Force chunking if we saw a response trailer.
// This prevents net/http from calculating the length for short
// bodies and adding a Content-Length.
http.NewResponseController(rw).Flush()
}
if len(res.Trailer) == announcedTrailers {
copyHeader(rw.Header(), res.Trailer)
return
}
for k, vv := range res.Trailer {
k = http.TrailerPrefix + k
for _, v := range vv {
rw.Header().Add(k, v)
}
}
}
// removeHopByHopHeaders removes hop-by-hop headers.
func removeHopByHopHeaders(h http.Header) {
// RFC 7230, section 6.1: Remove headers listed in the "Connection" header.
for _, f := range h["Connection"] {
for sf := range strings.SplitSeq(f, ",") {
if sf = textproto.TrimString(sf); sf != "" {
h.Del(sf)
}
}
}
// RFC 2616, section 13.5.1: Remove a set of known hop-by-hop headers.
// This behavior is superseded by the RFC 7230 Connection header, but
// preserve it for backwards compatibility.
for _, f := range hopHeaders {
h.Del(f)
}
}
func (p *ReverseProxy) logf(format string, args ...any) {
if p.ErrorLog != nil {
p.ErrorLog.Printf(format, args...)
} else {
log.Printf(format, args...)
}
}
func upgradeType(h http.Header) string {
if !httpguts.HeaderValuesContainsToken(h["Connection"], "Upgrade") {
return ""
}
return h.Get("Upgrade")
}
func (p *ReverseProxy) handleUpgradeResponse(rw http.ResponseWriter, req *http.Request, res *http.Response) {
reqUpType := upgradeType(req.Header)
resUpType := upgradeType(res.Header)
if !IsPrint(resUpType) { // We know reqUpType is ASCII, it's checked by the caller.
p.getErrorHandler()(rw, req, fmt.Errorf("backend tried to switch to invalid protocol %q", resUpType))
return
}
if !strings.EqualFold(reqUpType, resUpType) {
p.getErrorHandler()(rw, req, fmt.Errorf("backend tried to switch protocol %q when %q was requested", resUpType, reqUpType))
return
}
backConn, ok := res.Body.(io.ReadWriteCloser)
if !ok {
p.getErrorHandler()(rw, req, fmt.Errorf("internal error: 101 switching protocols response with non-writable body"))
return
}
rc := http.NewResponseController(rw)
conn, brw, hijackErr := rc.Hijack()
if errors.Is(hijackErr, http.ErrNotSupported) {
p.getErrorHandler()(rw, req, fmt.Errorf("can't switch protocols using non-Hijacker ResponseWriter type %T", rw))
return
}
backConnCloseCh := make(chan bool)
go func() {
// Ensure that the cancellation of a request closes the backend.
// See issue https://golang.org/issue/35559.
select {
case <-req.Context().Done():
case <-backConnCloseCh:
}
backConn.Close()
}()
defer close(backConnCloseCh)
if hijackErr != nil {
p.getErrorHandler()(rw, req, fmt.Errorf("Hijack failed on protocol switch: %v", hijackErr))
return
}
defer conn.Close()
copyHeader(rw.Header(), res.Header)
res.Header = rw.Header()
res.Body = nil // so res.Write only writes the headers; we have res.Body in backConn above
if err := res.Write(brw); err != nil {
p.getErrorHandler()(rw, req, fmt.Errorf("response write: %v", err))
return
}
if err := brw.Flush(); err != nil {
p.getErrorHandler()(rw, req, fmt.Errorf("response flush: %v", err))
return
}
errc := make(chan error, 1)
spc := switchProtocolCopier{user: conn, backend: backConn}
go spc.copyToBackend(errc)
go spc.copyFromBackend(errc)
<-errc
}
// switchProtocolCopier exists so goroutines proxying data back and
// forth have nice names in stacks.
type switchProtocolCopier struct {
user, backend io.ReadWriter
}
func (c switchProtocolCopier) copyFromBackend(errc chan<- error) {
_, err := io.Copy(c.user, c.backend)
errc <- err
}
func (c switchProtocolCopier) copyToBackend(errc chan<- error) {
_, err := io.Copy(c.backend, c.user)
errc <- err
}
func IsPrint(s string) bool {
for _, r := range s {
if r < ' ' || r > '~' {
return false
}
}
return true
}