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Fixed h2c enable crash bug

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- Moved h2c roundtripper to a dedicated module
- Fixed h2c enable crash bug
This commit is contained in:
Toby Chui 2025-02-11 21:53:21 +08:00
parent e624227dae
commit 7555611ba5
3 changed files with 52 additions and 16 deletions
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4
src/go.sum
View File

@ -669,8 +669,6 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
@ -941,8 +939,6 @@ golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=

19
src/mod/dynamicproxy/dpcore/dpcore.go
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@ -2,7 +2,6 @@ package dpcore
import (
"context"
"crypto/tls"
"errors"
"io"
"log"
@ -12,8 +11,8 @@ import (
"strings"
"time"
"golang.org/x/net/http2"
"imuslab.com/zoraxy/mod/dynamicproxy/domainsniff"
"imuslab.com/zoraxy/mod/dynamicproxy/modh2c"
"imuslab.com/zoraxy/mod/dynamicproxy/permissionpolicy"
)
@ -104,14 +103,6 @@ func NewDynamicProxyCore(target *url.URL, prepender string, dpcOptions *DpcoreOp
}
thisTransporter := http.DefaultTransport
if dpcOptions.UseH2CRoundTripper {
thisTransporter = &http2.Transport{
DialTLS: func(network, addr string, cfg *tls.Config) (net.Conn, error) {
return net.Dial(network, addr)
},
AllowHTTP: true,
}
}
//Hack the default transporter to handle more connections
optimalConcurrentConnection := 32
@ -121,13 +112,17 @@ func NewDynamicProxyCore(target *url.URL, prepender string, dpcOptions *DpcoreOp
thisTransporter.(*http.Transport).MaxConnsPerHost = optimalConcurrentConnection * 2
thisTransporter.(*http.Transport).DisableCompression = true
//TODO: Add user adjustable timeout option here
if dpcOptions.IgnoreTLSVerification {
//Ignore TLS certificate validation error
thisTransporter.(*http.Transport).TLSClientConfig.InsecureSkipVerify = true
}
//TODO: Add user adjustable timeout option here
if dpcOptions.UseH2CRoundTripper {
//Use H2C RoundTripper for HTTP/2.0 connection
thisTransporter = modh2c.NewH2CRoundTripper()
}
return &ReverseProxy{
Director: director,
Prepender: prepender,

45
src/mod/dynamicproxy/modh2c/modh2c.go Normal file
View File

@ -0,0 +1,45 @@
package modh2c
/*
modh2c.go
This module is a simple h2c roundtripper for dpcore
*/
import (
"context"
"crypto/tls"
"net"
"net/http"
"time"
"golang.org/x/net/http2"
)
type H2CRoundTripper struct {
}
func NewH2CRoundTripper() *H2CRoundTripper {
return &H2CRoundTripper{}
}
// Example from https://github.com/thrawn01/h2c-golang-example/blob/master/cmd/client/main.go
func (h2c *H2CRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
req, err := http.NewRequestWithContext(ctx, req.Method, req.RequestURI, nil)
if err != nil {
return nil, err
}
tr := &http2.Transport{
AllowHTTP: true,
DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
var d net.Dialer
return d.DialContext(ctx, network, addr)
},
}
return tr.RoundTrip(req)
}