重构优化

src/http_client.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"net"
+	"net/http"
+	"time"
+)
+
+var (
+	// 全局HTTP客户端 - 用于代理请求（长超时）
+	globalHTTPClient *http.Client
+	// 搜索HTTP客户端 - 用于API请求（短超时） 
+	searchHTTPClient *http.Client
+)
+
+// initHTTPClients 初始化HTTP客户端
+func initHTTPClients() {
+	// 代理客户端配置 - 适用于大文件传输
+	globalHTTPClient = &http.Client{
+		Transport: &http.Transport{
+			DialContext: (&net.Dialer{
+				Timeout:   30 * time.Second,
+				KeepAlive: 30 * time.Second,
+			}).DialContext,
+			MaxIdleConns:          1000,
+			MaxIdleConnsPerHost:   1000,
+			IdleConnTimeout:       90 * time.Second,
+			TLSHandshakeTimeout:   10 * time.Second,
+			ExpectContinueTimeout: 1 * time.Second,
+			ResponseHeaderTimeout: 300 * time.Second,
+		},
+	}
+	
+	// 搜索客户端配置 - 适用于API调用
+	searchHTTPClient = &http.Client{
+		Timeout: 10 * time.Second,
+		Transport: &http.Transport{
+			DialContext: (&net.Dialer{
+				Timeout:   5 * time.Second,
+				KeepAlive: 30 * time.Second,
+			}).DialContext,
+			MaxIdleConns:        100,
+			MaxIdleConnsPerHost: 10,
+			IdleConnTimeout:     90 * time.Second,
+			TLSHandshakeTimeout: 5 * time.Second,
+			DisableCompression:  false,
+		},
+	}
+}
+
+// GetGlobalHTTPClient 获取全局HTTP客户端（用于代理）
+func GetGlobalHTTPClient() *http.Client {
+	return globalHTTPClient
+}
+
+// GetSearchHTTPClient 获取搜索HTTP客户端（用于API调用）
+func GetSearchHTTPClient() *http.Client {
+	return searchHTTPClient
+}