🐛 S3/WebDAV 数据同步无法使用代理 Fix https://github.com/siyuan-note/siyuan/issues/6695

kernel/util/net.go

@@ -0,0 +1,75 @@
+// SiYuan - Build Your Eternal Digital Garden
+// Copyright (c) 2020-present, b3log.org
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package util
+
+import (
+	"context"
+	"crypto/tls"
+	"net"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/88250/gulu"
+	"github.com/gin-gonic/gin"
+	"github.com/olahol/melody"
+)
+
+func GetRemoteAddr(session *melody.Session) string {
+	ret := session.Request.Header.Get("X-forwarded-for")
+	ret = strings.TrimSpace(ret)
+	if "" == ret {
+		ret = session.Request.Header.Get("X-Real-IP")
+	}
+	ret = strings.TrimSpace(ret)
+	if "" == ret {
+		return session.Request.RemoteAddr
+	}
+	return strings.Split(ret, ",")[0]
+}
+
+func JsonArg(c *gin.Context, result *gulu.Result) (arg map[string]interface{}, ok bool) {
+	arg = map[string]interface{}{}
+	if err := c.BindJSON(&arg); nil != err {
+		result.Code = -1
+		result.Msg = "parses request failed"
+		return
+	}
+
+	ok = true
+	return
+}
+
+func NewTransport(skipTlsVerify bool) *http.Transport {
+	return &http.Transport{
+		Proxy: http.ProxyFromEnvironment,
+		DialContext: defaultTransportDialContext(&net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}),
+		ForceAttemptHTTP2:     true,
+		MaxIdleConns:          100,
+		IdleConnTimeout:       90 * time.Second,
+		TLSHandshakeTimeout:   10 * time.Second,
+		ExpectContinueTimeout: 1 * time.Second,
+
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: skipTlsVerify}}
+}
+
+func defaultTransportDialContext(dialer *net.Dialer) func(context.Context, string, string) (net.Conn, error) {
+	return dialer.DialContext
+}