env: supports for http and socks5 proxies

util/http.go

@@ -5,8 +5,16 @@ import (
 	"time"
 )
 
-var httpSession = &http.Client{
-	Timeout: 20 * time.Second,
+var httpSession = NewHTTPSession()
+
+func NewHTTPSession() *http.Client {
+	session := &http.Client{
+		Timeout: 20 * time.Second,
+		Transport: &http.Transport{
+			Proxy: http.ProxyFromEnvironment,
+		},
+	}
+	return session
 }
 
 func GetHTTPSession() *http.Client {