Add oauth callback via proxy

Improved support for environment variables and configuration files, and standardized default behaviors

conf/config.yaml

@@ -44,4 +44,7 @@ oss:
   max-byte: 10240
 jwt:
   private-key: "./conf/jwt_pri.pem"
-  expire-duration: 360000
+  expire-duration: 360000
+proxy:
+  enable: false
+  host: ""

config/config.go

@@ -30,6 +30,7 @@ type Config struct {
 	Oss      Oss
 	Jwt      Jwt
 	Rustdesk Rustdesk
+	Proxy    Proxy
 }
 
 // Init 初始化配置

config/proxy.go

@@ -0,0 +1,6 @@
+package config
+
+type Proxy struct {
+	Enable bool   `mapstructure:"enable"`
+	Host   string `mapstructure:"host"`
+}

service/oauth.go

@@ -12,6 +12,8 @@ import (
 	"golang.org/x/oauth2/google"
 	"gorm.io/gorm"
 	"io"
+	"net/http"
+	"net/url"
 	"strconv"
 	"sync"
 	"time"
@@ -166,20 +168,44 @@ func (os *OauthService) GetOauthConfig(op string) (error, *oauth2.Config) {
 	return errors.New("ConfigNotFound"), nil
 }
 
+func getHTTPClientWithProxy() *http.Client {
+	if global.Config.Proxy.Enable {
+		if global.Config.Proxy.Host == "" {
+			global.Logger.Warn("Proxy is enabled but proxy host is empty.")
+			return http.DefaultClient
+		}
+		proxyURL, err := url.Parse(global.Config.Proxy.Host)
+		if err != nil {
+			global.Logger.Warn("Invalid proxy URL: ", err)
+			return http.DefaultClient
+		}
+		transport := &http.Transport{
+			Proxy: http.ProxyURL(proxyURL),
+		}
+		return &http.Client{Transport: transport}
+	}
+	return http.DefaultClient
+}
+
 func (os *OauthService) GithubCallback(code string) (error error, userData *GithubUserdata) {
 	err, oauthConfig := os.GetOauthConfig(model.OauthTypeGithub)
 	if err != nil {
 		return err, nil
 	}
-	token, err := oauthConfig.Exchange(context.Background(), code)
+
+	// 使用代理配置创建 HTTP 客户端
+	httpClient := getHTTPClientWithProxy()
+	ctx := context.WithValue(context.Background(), oauth2.HTTPClient, httpClient)
+
+	token, err := oauthConfig.Exchange(ctx, code)
 	if err != nil {
 		global.Logger.Warn("oauthConfig.Exchange() failed: ", err)
 		error = errors.New("GetOauthTokenError")
 		return
 	}
 
-	// 创建一个 HTTP 客户端，并将 access_token 添加到 Authorization 头中
-	client := oauthConfig.Client(context.Background(), token)
+	// 使用带有代理的 HTTP 客户端获取用户信息
+	client := oauthConfig.Client(ctx, token)
 	resp, err := client.Get("https://api.github.com/user")
 	if err != nil {
 		global.Logger.Warn("failed getting user info: ", err)
@@ -193,7 +219,7 @@ func (os *OauthService) GithubCallback(code string) (error error, userData *Gith
 		}
 	}(resp.Body)
 
-	// 在这里处理 GitHub 用户信息
+	// 解析用户信息
 	if err = json.NewDecoder(resp.Body).Decode(&userData); err != nil {
 		global.Logger.Warn("failed decoding user info: ", err)
 		error = errors.New("DecodeOauthUserInfoError")
@@ -204,14 +230,23 @@ func (os *OauthService) GithubCallback(code string) (error error, userData *Gith
 
 func (os *OauthService) GoogleCallback(code string) (error error, userData *GoogleUserdata) {
 	err, oauthConfig := os.GetOauthConfig(model.OauthTypeGoogle)
-	token, err := oauthConfig.Exchange(context.Background(), code)
+	if err != nil {
+		return err, nil
+	}
+
+	// 使用代理配置创建 HTTP 客户端
+	httpClient := getHTTPClientWithProxy()
+	ctx := context.WithValue(context.Background(), oauth2.HTTPClient, httpClient)
+
+	token, err := oauthConfig.Exchange(ctx, code)
 	if err != nil {
 		global.Logger.Warn("oauthConfig.Exchange() failed: ", err)
 		error = errors.New("GetOauthTokenError")
 		return
 	}
-	// 创建 HTTP 客户端，并将 access_token 添加到 Authorization 头中
-	client := oauthConfig.Client(context.Background(), token)
+
+	// 使用带有代理的 HTTP 客户端获取用户信息
+	client := oauthConfig.Client(ctx, token)
 	resp, err := client.Get("https://www.googleapis.com/oauth2/v2/userinfo")
 	if err != nil {
 		global.Logger.Warn("failed getting user info: ", err)
@@ -225,8 +260,9 @@ func (os *OauthService) GoogleCallback(code string) (error error, userData *Goog
 		}
 	}(resp.Body)
 
+	// 解析用户信息
 	if err = json.NewDecoder(resp.Body).Decode(&userData); err != nil {
-		global.Logger.Warn("failed decoding user info: %s\n", err)
+		global.Logger.Warn("failed decoding user info: ", err)
 		error = errors.New("DecodeOauthUserInfoError")
 		return
 	}