feat: task separate proxy (#727)

internal/protocol/http/fetcher.go

@@ -79,6 +79,7 @@ func (f *Fetcher) Resolve(req *base.Request) error {
 	if err := base.ParseReqExtra[fhttp.ReqExtra](req); err != nil {
 		return err
 	}
+	f.meta.Req = req
 	httpReq, err := f.buildRequest(nil, req)
 	if err != nil {
 		return err
@@ -153,7 +154,6 @@ func (f *Fetcher) Resolve(req *base.Request) error {
 		file.Name = httpReq.URL.Hostname()
 	}
 	res.Files = append(res.Files, file)
-	f.meta.Req = req
 	f.meta.Res = res
 	return nil
 }
@@ -444,7 +444,7 @@ func (f *Fetcher) splitChunk() (chunks []*chunk) {
 
 func (f *Fetcher) buildClient() *http.Client {
 	transport := &http.Transport{
-		Proxy: f.ctl.ProxyConfig.ToHandler(),
+		Proxy: f.ctl.GetProxy(f.meta.Req.Proxy),
 	}
 	// Cookie handle
 	jar, _ := cookiejar.New(nil)

internal/protocol/http/fetcher_test.go

@@ -9,6 +9,8 @@ import (
 	"github.com/GopeedLab/gopeed/pkg/base"
 	"github.com/GopeedLab/gopeed/pkg/protocol/http"
 	"net"
+	gohttp "net/http"
+	"net/url"
 	"testing"
 	"time"
 )
@@ -385,10 +387,12 @@ func downloadResume(listener net.Listener, connections int, t *testing.T) {
 func downloadWithProxy(httpListener net.Listener, proxyListener net.Listener, t *testing.T) {
 	fetcher := downloadReady(httpListener, 4, t)
 	ctl := controller.NewController()
-	ctl.ProxyConfig = &base.DownloaderProxyConfig{
-		Enable: true,
-		Scheme: "socks5",
-		Host:   proxyListener.Addr().String(),
+	ctl.GetProxy = func(requestProxy *base.RequestProxy) func(*gohttp.Request) (*url.URL, error) {
+		return (&base.DownloaderProxyConfig{
+			Enable: true,
+			Scheme: "socks5",
+			Host:   proxyListener.Addr().String(),
+		}).ToHandler()
 	}
 	fetcher.Setup(ctl)
 	err := fetcher.Start()