feat(net): support proxy configuration via config file (#1359)

* support proxy

* debug

* debug2

* del debug

* add proxy configuration with env var fallback

* comments to en

* refactor(env): fallback env

---------

Co-authored-by: jyxjjj <773933146@qq.com>

Author: jenfonro

drivers/base/client.go

@@ -25,6 +25,7 @@ func InitClient() {
 		}),
 	).SetTLSClientConfig(&tls.Config{InsecureSkipVerify: conf.Conf.TlsInsecureSkipVerify})
 	NoRedirectClient.SetHeader("user-agent", UserAgent)
+	net.SetRestyProxyIfConfigured(NoRedirectClient)
 
 	RestyClient = NewRestyClient()
 	HttpClient = net.NewHttpClient()
@@ -37,5 +38,7 @@ func NewRestyClient() *resty.Client {
 		SetRetryResetReaders(true).
 		SetTimeout(DefaultTimeout).
 		SetTLSClientConfig(&tls.Config{InsecureSkipVerify: conf.Conf.TlsInsecureSkipVerify})
+
+	net.SetRestyProxyIfConfigured(client)
 	return client
 }

internal/bootstrap/config.go

@@ -140,6 +140,10 @@ func InitConfig() {
 		log.Fatalf("create temp dir error: %+v", err)
 	}
 	log.Debugf("config: %+v", conf.Conf)
+
+	// Validate and display proxy configuration status
+	validateProxyConfig()
+
 	base.InitClient()
 	initURL()
 }
@@ -179,3 +183,14 @@ func CleanTempDir() {
 		}
 	}
 }
+
+// validateProxyConfig validates proxy configuration and displays status at startup
+func validateProxyConfig() {
+	if conf.Conf.ProxyAddress != "" {
+		if _, err := url.Parse(conf.Conf.ProxyAddress); err == nil {
+			log.Infof("Proxy enabled: %s", conf.Conf.ProxyAddress)
+		} else {
+			log.Errorf("Invalid proxy address format: %s, error: %v", conf.Conf.ProxyAddress, err)
+		}
+	}
+}

internal/conf/config.go

@@ -131,6 +131,7 @@ type Config struct {
 	FTP                   FTP         `json:"ftp" envPrefix:"FTP_"`
 	SFTP                  SFTP        `json:"sftp" envPrefix:"SFTP_"`
 	LastLaunchedVersion   string      `json:"last_launched_version"`
+	ProxyAddress          string      `json:"proxy_address" env:"PROXY_ADDRESS"`
 }
 
 func DefaultConfig(dataDir string) *Config {
@@ -244,5 +245,6 @@ func DefaultConfig(dataDir string) *Config {
 			Listen: ":5222",
 		},
 		LastLaunchedVersion: "",
+		ProxyAddress:        "",
 	}
 }

internal/net/serve.go

@@ -283,11 +283,15 @@ func HttpClient() *http.Client {
 }
 
 func NewHttpClient() *http.Client {
+	transport := &http.Transport{
+		Proxy:           http.ProxyFromEnvironment,
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: conf.Conf.TlsInsecureSkipVerify},
+	}
+
+	SetProxyIfConfigured(transport)
+
 	return &http.Client{
-		Timeout: time.Hour * 48,
-		Transport: &http.Transport{
-			Proxy:           http.ProxyFromEnvironment,
-			TLSClientConfig: &tls.Config{InsecureSkipVerify: conf.Conf.TlsInsecureSkipVerify},
-		},
+		Timeout:   time.Hour * 48,
+		Transport: transport,
 	}
 }

internal/net/util.go

@@ -7,12 +7,15 @@ import (
 	"mime/multipart"
 	"net/http"
 	"net/textproto"
+	"net/url"
 	"strings"
 	"time"
 
+	"github.com/OpenListTeam/OpenList/v4/internal/conf"
 	"github.com/OpenListTeam/OpenList/v4/pkg/utils"
 
 	"github.com/OpenListTeam/OpenList/v4/pkg/http_range"
+	"github.com/go-resty/resty/v2"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -350,3 +353,23 @@ func GetRangedHttpReader(readCloser io.ReadCloser, offset, length int64) (io.Rea
 	// return an io.ReadCloser that is limited to `length` bytes.
 	return &LimitedReadCloser{readCloser, length_int}, nil
 }
+
+// SetProxyIfConfigured sets proxy for HTTP Transport if configured
+func SetProxyIfConfigured(transport *http.Transport) {
+	// If proxy address is configured, override environment variable settings
+	if conf.Conf.ProxyAddress != "" {
+		if proxyURL, err := url.Parse(conf.Conf.ProxyAddress); err == nil {
+			transport.Proxy = http.ProxyURL(proxyURL)
+		}
+	}
+}
+
+// SetRestyProxyIfConfigured sets proxy for Resty client if configured
+func SetRestyProxyIfConfigured(client *resty.Client) {
+	// If proxy address is configured, override environment variable settings
+	if conf.Conf.ProxyAddress != "" {
+		if proxyURL, err := url.Parse(conf.Conf.ProxyAddress); err == nil {
+			client.SetProxy(proxyURL.String())
+		}
+	}
+}