You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
1.9 KiB
99 lines
1.9 KiB
// Copyright 2021 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package proxy
|
|
|
|
import (
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"strings"
|
|
"sync"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
|
|
"github.com/gobwas/glob"
|
|
)
|
|
|
|
var (
|
|
once sync.Once
|
|
hostMatchers []glob.Glob
|
|
)
|
|
|
|
// GetProxyURL returns proxy url
|
|
func GetProxyURL() string {
|
|
if !setting.Proxy.Enabled {
|
|
return ""
|
|
}
|
|
|
|
if setting.Proxy.ProxyURL == "" {
|
|
if os.Getenv("http_proxy") != "" {
|
|
return os.Getenv("http_proxy")
|
|
}
|
|
return os.Getenv("https_proxy")
|
|
}
|
|
return setting.Proxy.ProxyURL
|
|
}
|
|
|
|
// Match return true if url needs to be proxied
|
|
func Match(u string) bool {
|
|
if !setting.Proxy.Enabled {
|
|
return false
|
|
}
|
|
|
|
// enforce do once
|
|
Proxy()
|
|
|
|
for _, v := range hostMatchers {
|
|
if v.Match(u) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// Proxy returns the system proxy
|
|
func Proxy() func(req *http.Request) (*url.URL, error) {
|
|
if !setting.Proxy.Enabled {
|
|
return func(req *http.Request) (*url.URL, error) {
|
|
return nil, nil
|
|
}
|
|
}
|
|
if setting.Proxy.ProxyURL == "" {
|
|
return http.ProxyFromEnvironment
|
|
}
|
|
|
|
once.Do(func() {
|
|
for _, h := range setting.Proxy.ProxyHosts {
|
|
if g, err := glob.Compile(h); err == nil {
|
|
hostMatchers = append(hostMatchers, g)
|
|
} else {
|
|
log.Error("glob.Compile %s failed: %v", h, err)
|
|
}
|
|
}
|
|
})
|
|
|
|
return func(req *http.Request) (*url.URL, error) {
|
|
for _, v := range hostMatchers {
|
|
if v.Match(req.URL.Host) {
|
|
return http.ProxyURL(setting.Proxy.ProxyURLFixed)(req)
|
|
}
|
|
}
|
|
return http.ProxyFromEnvironment(req)
|
|
}
|
|
}
|
|
|
|
// EnvWithProxy returns os.Environ(), with a https_proxy env, if the given url
|
|
// needs to be proxied.
|
|
func EnvWithProxy(u *url.URL) []string {
|
|
envs := os.Environ()
|
|
if strings.EqualFold(u.Scheme, "http") || strings.EqualFold(u.Scheme, "https") {
|
|
if Match(u.Host) {
|
|
envs = append(envs, "https_proxy="+GetProxyURL())
|
|
}
|
|
}
|
|
|
|
return envs
|
|
}
|