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https://github.com/ouqiang/goproxy
Go HTTP(S)代理库, 支持中间人代理解密HTTPS
https://github.com/ouqiang/goproxy
Last synced: 3 months ago
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Go HTTP(S)代理库, 支持中间人代理解密HTTPS
- Host: GitHub
- URL: https://github.com/ouqiang/goproxy
- Owner: ouqiang
- License: apache-2.0
- Created: 2018-08-08T12:26:21.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2022-04-25T05:51:53.000Z (over 2 years ago)
- Last Synced: 2024-06-18T15:27:38.068Z (5 months ago)
- Language: Go
- Homepage:
- Size: 60.5 KB
- Stars: 304
- Watchers: 11
- Forks: 88
- Open Issues: 14
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- go-awesome - ouqiang/goproxy - Go HTTP(S) proxy library, supports man-in-the-middle proxy to decrypt HTTPS (Open source library / The Internet)
README
# goproxy
Go HTTP(S)代理库, 支持中间人代理解密HTTPS
安装
----
```bash
go get github.com/ouqiang/goproxy
```
使用
----
```go
package main
import (
"net/http"
"time"
"github.com/ouqiang/goproxy"
)
func main() {
proxy := goproxy.New()
server := &http.Server{
Addr: ":8080",
Handler: proxy,
ReadTimeout: 1 * time.Minute,
WriteTimeout: 1 * time.Minute,
}
err := server.ListenAndServe()
if err != nil {
panic(err)
}
}
```
### 代理测试
```bash
curl -x localhost:8080 https://www.baidu.com
```
中间人代理, 解密HTTPS
---
系统需导入根证书 mitm-proxy.crt
```go
package main
import (
"crypto/tls"
"net/http"
"sync"
"time"
"github.com/ouqiang/goproxy"
)
// 实现证书缓存接口
type Cache struct {
m sync.Map
}
func (c *Cache) Set(host string, cert *tls.Certificate) {
c.m.Store(host, cert)
}
func (c *Cache) Get(host string) *tls.Certificate {
v, ok := c.m.Load(host)
if !ok {
return nil
}
return v.(*tls.Certificate)
}
func main() {
proxy := goproxy.New(goproxy.WithDecryptHTTPS(&Cache{}))
server := &http.Server{
Addr: ":8080",
Handler: proxy,
ReadTimeout: 1 * time.Minute,
WriteTimeout: 1 * time.Minute,
}
err := server.ListenAndServe()
if err != nil {
panic(err)
}
}
```
事件处理
---
实现Delegate接口
```go
type Delegate interface {
// Connect 收到客户端连接
Connect(ctx *Context, rw http.ResponseWriter)
// Auth 代理身份认证
Auth(ctx *Context, rw http.ResponseWriter)
// BeforeRequest HTTP请求前 设置X-Forwarded-For, 修改Header、Body
BeforeRequest(ctx *Context)
// BeforeResponse 响应发送到客户端前, 修改Header、Body、Status Code
BeforeResponse(ctx *Context, resp *http.Response, err error)
// ParentProxy 上级代理
ParentProxy(*http.Request) (*url.URL, error)
// Finish 本次请求结束
Finish(ctx *Context)
// 记录错误信息
ErrorLog(err error)
}
```
```go
type EventHandler struct{}
func (e *EventHandler) Connect(ctx *goproxy.Context, rw http.ResponseWriter) {
// 保存的数据可以在后面的回调方法中获取
ctx.Data["req_id"] = "uuid"
// 禁止访问某个域名
if strings.Contains(ctx.Req.URL.Host, "example.com") {
rw.WriteHeader(http.StatusForbidden)
ctx.Abort()
return
}
}
func (e *EventHandler) Auth(ctx *goproxy.Context, rw http.ResponseWriter) {
// 身份验证
}
func (e *EventHandler) BeforeRequest(ctx *goproxy.Context) {
// 修改header
ctx.Req.Header.Add("X-Request-Id", ctx.Data["req_id"].(string))
// 设置X-Forwarded-For
if clientIP, _, err := net.SplitHostPort(ctx.Req.RemoteAddr); err == nil {
if prior, ok := ctx.Req.Header["X-Forwarded-For"]; ok {
clientIP = strings.Join(prior, ", ") + ", " + clientIP
}
ctx.Req.Header.Set("X-Forwarded-For", clientIP)
}
// 读取Body
body, err := ioutil.ReadAll(ctx.Req.Body)
if err != nil {
// 错误处理
return
}
// Request.Body只能读取一次, 读取后必须再放回去
// Response.Body同理
ctx.Req.Body = ioutil.NopCloser(bytes.NewReader(body))
}
func (e *EventHandler) BeforeResponse(ctx *goproxy.Context, resp *http.Response, err error) {
if err != nil {
return
}
// 修改response
}
// 设置上级代理
func (e *EventHandler) ParentProxy(req *http.Request) (*url.URL, error) {
return url.Parse("http://localhost:1087")
}
func (e *EventHandler) Finish(ctx *goproxy.Context) {
fmt.Printf("请求结束 URL:%s\n", ctx.Req.URL)
}
// 记录错误日志
func (e *EventHandler) ErrorLog(err error) {
log.Println(err)
}
func main() {
proxy := goproxy.New(goproxy.WithDelegate(&EventHandler{}))
server := &http.Server{
Addr: ":8080",
Handler: proxy,
ReadTimeout: 1 * time.Minute,
WriteTimeout: 1 * time.Minute,
}
err := server.ListenAndServe()
if err != nil {
panic(err)
}
}
```