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https://github.com/tobychui/zoraxy.git
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init commit
This commit is contained in:
Toby Chui
21
mod/dynamicproxy/dpcore/LICENSE
Normal file
21
mod/dynamicproxy/dpcore/LICENSE
Normal file
@@ -0,0 +1,21 @@
|
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MIT License
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||||
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||||
Copyright (c) 2018-present tobychui
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Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
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||||
copies or substantial portions of the Software.
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||||
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||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
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SOFTWARE.
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416
mod/dynamicproxy/dpcore/dpcore.go
Normal file
416
mod/dynamicproxy/dpcore/dpcore.go
Normal file
@@ -0,0 +1,416 @@
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package dpcore
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import (
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"errors"
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"fmt"
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"io"
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"log"
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"net"
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"net/http"
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"net/url"
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"path/filepath"
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"strings"
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"sync"
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"time"
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)
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var onExitFlushLoop func()
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const (
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defaultTimeout = time.Minute * 5
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)
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// ReverseProxy is an HTTP Handler that takes an incoming request and
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// sends it to another server, proxying the response back to the
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// client, support http, also support https tunnel using http.hijacker
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type ReverseProxy struct {
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// Set the timeout of the proxy server, default is 5 minutes
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Timeout time.Duration
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// Director must be a function which modifies
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// the request into a new request to be sent
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// using Transport. Its response is then copied
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// back to the original client unmodified.
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// Director must not access the provided Request
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// after returning.
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Director func(*http.Request)
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// The transport used to perform proxy requests.
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// default is http.DefaultTransport.
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Transport http.RoundTripper
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// FlushInterval specifies the flush interval
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// to flush to the client while copying the
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// response body. If zero, no periodic flushing is done.
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FlushInterval time.Duration
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// ErrorLog specifies an optional logger for errors
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// that occur when attempting to proxy the request.
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// If nil, logging goes to os.Stderr via the log package's
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// standard logger.
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ErrorLog *log.Logger
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// ModifyResponse is an optional function that
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// modifies the Response from the backend.
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// If it returns an error, the proxy returns a StatusBadGateway error.
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ModifyResponse func(*http.Response) error
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//Prepender is an optional prepend text for URL rewrite
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//
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Prepender string
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Verbal bool
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}
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type requestCanceler interface {
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CancelRequest(req *http.Request)
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}
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func NewDynamicProxyCore(target *url.URL, prepender string) *ReverseProxy {
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targetQuery := target.RawQuery
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director := func(req *http.Request) {
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req.URL.Scheme = target.Scheme
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req.URL.Host = target.Host
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req.URL.Path = singleJoiningSlash(target.Path, req.URL.Path)
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// If Host is empty, the Request.Write method uses
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// the value of URL.Host.
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// force use URL.Host
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req.Host = req.URL.Host
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if targetQuery == "" || req.URL.RawQuery == "" {
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req.URL.RawQuery = targetQuery + req.URL.RawQuery
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} else {
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req.URL.RawQuery = targetQuery + "&" + req.URL.RawQuery
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}
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if _, ok := req.Header["User-Agent"]; !ok {
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req.Header.Set("User-Agent", "")
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}
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}
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return &ReverseProxy{
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Director: director,
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Prepender: prepender,
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Verbal: false,
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}
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}
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func singleJoiningSlash(a, b string) string {
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aslash := strings.HasSuffix(a, "/")
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bslash := strings.HasPrefix(b, "/")
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switch {
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case aslash && bslash:
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return a + b[1:]
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case !aslash && !bslash:
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return a + "/" + b
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}
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return a + b
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}
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func copyHeader(dst, src http.Header) {
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for k, vv := range src {
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for _, v := range vv {
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dst.Add(k, v)
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}
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}
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}
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// Hop-by-hop headers. These are removed when sent to the backend.
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// http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html
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var hopHeaders = []string{
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//"Connection",
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"Proxy-Connection", // non-standard but still sent by libcurl and rejected by e.g. google
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"Keep-Alive",
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"Proxy-Authenticate",
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"Proxy-Authorization",
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"Te", // canonicalized version of "TE"
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"Trailer", // not Trailers per URL above; http://www.rfc-editor.org/errata_search.php?eid=4522
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"Transfer-Encoding",
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//"Upgrade",
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}
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func (p *ReverseProxy) copyResponse(dst io.Writer, src io.Reader) {
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if p.FlushInterval != 0 {
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if wf, ok := dst.(writeFlusher); ok {
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mlw := &maxLatencyWriter{
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dst: wf,
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latency: p.FlushInterval,
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done: make(chan bool),
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}
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go mlw.flushLoop()
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defer mlw.stop()
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dst = mlw
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}
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}
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io.Copy(dst, src)
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}
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type writeFlusher interface {
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io.Writer
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http.Flusher
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}
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type maxLatencyWriter struct {
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dst writeFlusher
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latency time.Duration
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mu sync.Mutex
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done chan bool
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}
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func (m *maxLatencyWriter) Write(b []byte) (int, error) {
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m.mu.Lock()
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defer m.mu.Unlock()
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return m.dst.Write(b)
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}
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func (m *maxLatencyWriter) flushLoop() {
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t := time.NewTicker(m.latency)
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defer t.Stop()
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for {
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select {
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case <-m.done:
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if onExitFlushLoop != nil {
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onExitFlushLoop()
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}
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return
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case <-t.C:
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m.mu.Lock()
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m.dst.Flush()
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m.mu.Unlock()
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}
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}
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}
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func (m *maxLatencyWriter) stop() {
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m.done <- true
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}
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func (p *ReverseProxy) logf(format string, args ...interface{}) {
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if p.ErrorLog != nil {
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p.ErrorLog.Printf(format, args...)
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} else {
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log.Printf(format, args...)
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}
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}
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func removeHeaders(header http.Header) {
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// Remove hop-by-hop headers listed in the "Connection" header.
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if c := header.Get("Connection"); c != "" {
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for _, f := range strings.Split(c, ",") {
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if f = strings.TrimSpace(f); f != "" {
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header.Del(f)
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}
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}
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}
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// Remove hop-by-hop headers
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for _, h := range hopHeaders {
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if header.Get(h) != "" {
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header.Del(h)
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}
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}
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if header.Get("A-Upgrade") != "" {
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header.Set("Upgrade", header.Get("A-Upgrade"))
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header.Del("A-Upgrade")
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}
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}
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func addXForwardedForHeader(req *http.Request) {
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if clientIP, _, err := net.SplitHostPort(req.RemoteAddr); err == nil {
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// If we aren't the first proxy retain prior
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// X-Forwarded-For information as a comma+space
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// separated list and fold multiple headers into one.
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if prior, ok := req.Header["X-Forwarded-For"]; ok {
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clientIP = strings.Join(prior, ", ") + ", " + clientIP
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}
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req.Header.Set("X-Forwarded-For", clientIP)
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}
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}
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func (p *ReverseProxy) ProxyHTTP(rw http.ResponseWriter, req *http.Request) error {
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transport := p.Transport
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if transport == nil {
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transport = http.DefaultTransport
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}
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outreq := new(http.Request)
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// Shallow copies of maps, like header
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*outreq = *req
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if cn, ok := rw.(http.CloseNotifier); ok {
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if requestCanceler, ok := transport.(requestCanceler); ok {
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// After the Handler has returned, there is no guarantee
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// that the channel receives a value, so to make sure
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reqDone := make(chan struct{})
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defer close(reqDone)
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clientGone := cn.CloseNotify()
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go func() {
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select {
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case <-clientGone:
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requestCanceler.CancelRequest(outreq)
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case <-reqDone:
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}
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}()
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}
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}
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p.Director(outreq)
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outreq.Close = false
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// We may modify the header (shallow copied above), so we only copy it.
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outreq.Header = make(http.Header)
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copyHeader(outreq.Header, req.Header)
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// Remove hop-by-hop headers listed in the "Connection" header, Remove hop-by-hop headers.
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removeHeaders(outreq.Header)
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// Add X-Forwarded-For Header.
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addXForwardedForHeader(outreq)
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res, err := transport.RoundTrip(outreq)
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if err != nil {
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if p.Verbal {
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p.logf("http: proxy error: %v", err)
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}
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rw.WriteHeader(http.StatusBadGateway)
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return err
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}
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// Remove hop-by-hop headers listed in the "Connection" header of the response, Remove hop-by-hop headers.
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removeHeaders(res.Header)
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|
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if p.ModifyResponse != nil {
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if err := p.ModifyResponse(res); err != nil {
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if p.Verbal {
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p.logf("http: proxy error: %v", err)
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}
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rw.WriteHeader(http.StatusBadGateway)
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return err
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}
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}
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|
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//Custom header rewriter functions
|
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if res.Header.Get("Location") != "" {
|
||||
//Custom redirection fto this rproxy relative path
|
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fmt.Println(res.Header.Get("Location"))
|
||||
res.Header.Set("Location", filepath.ToSlash(filepath.Join(p.Prepender, res.Header.Get("Location"))))
|
||||
}
|
||||
// Copy header from response to client.
|
||||
copyHeader(rw.Header(), res.Header)
|
||||
|
||||
// The "Trailer" header isn't included in the Transport's response, Build it up from Trailer.
|
||||
if len(res.Trailer) > 0 {
|
||||
trailerKeys := make([]string, 0, len(res.Trailer))
|
||||
for k := range res.Trailer {
|
||||
trailerKeys = append(trailerKeys, k)
|
||||
}
|
||||
rw.Header().Add("Trailer", strings.Join(trailerKeys, ", "))
|
||||
}
|
||||
|
||||
rw.WriteHeader(res.StatusCode)
|
||||
if len(res.Trailer) > 0 {
|
||||
// Force chunking if we saw a response trailer.
|
||||
// This prevents net/http from calculating the length for short
|
||||
// bodies and adding a Content-Length.
|
||||
if fl, ok := rw.(http.Flusher); ok {
|
||||
fl.Flush()
|
||||
}
|
||||
}
|
||||
|
||||
p.copyResponse(rw, res.Body)
|
||||
// close now, instead of defer, to populate res.Trailer
|
||||
res.Body.Close()
|
||||
copyHeader(rw.Header(), res.Trailer)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *ReverseProxy) ProxyHTTPS(rw http.ResponseWriter, req *http.Request) error {
|
||||
hij, ok := rw.(http.Hijacker)
|
||||
if !ok {
|
||||
p.logf("http server does not support hijacker")
|
||||
return errors.New("http server does not support hijacker")
|
||||
}
|
||||
|
||||
clientConn, _, err := hij.Hijack()
|
||||
if err != nil {
|
||||
if p.Verbal {
|
||||
p.logf("http: proxy error: %v", err)
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
proxyConn, err := net.Dial("tcp", req.URL.Host)
|
||||
if err != nil {
|
||||
if p.Verbal {
|
||||
p.logf("http: proxy error: %v", err)
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// The returned net.Conn may have read or write deadlines
|
||||
// already set, depending on the configuration of the
|
||||
// Server, to set or clear those deadlines as needed
|
||||
// we set timeout to 5 minutes
|
||||
deadline := time.Now()
|
||||
if p.Timeout == 0 {
|
||||
deadline = deadline.Add(time.Minute * 5)
|
||||
} else {
|
||||
deadline = deadline.Add(p.Timeout)
|
||||
}
|
||||
|
||||
err = clientConn.SetDeadline(deadline)
|
||||
if err != nil {
|
||||
if p.Verbal {
|
||||
p.logf("http: proxy error: %v", err)
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
err = proxyConn.SetDeadline(deadline)
|
||||
if err != nil {
|
||||
if p.Verbal {
|
||||
p.logf("http: proxy error: %v", err)
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
_, err = clientConn.Write([]byte("HTTP/1.0 200 OK\r\n\r\n"))
|
||||
if err != nil {
|
||||
if p.Verbal {
|
||||
p.logf("http: proxy error: %v", err)
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
go func() {
|
||||
io.Copy(clientConn, proxyConn)
|
||||
clientConn.Close()
|
||||
proxyConn.Close()
|
||||
}()
|
||||
|
||||
io.Copy(proxyConn, clientConn)
|
||||
proxyConn.Close()
|
||||
clientConn.Close()
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *ReverseProxy) ServeHTTP(rw http.ResponseWriter, req *http.Request) error {
|
||||
if req.Method == "CONNECT" {
|
||||
err := p.ProxyHTTPS(rw, req)
|
||||
return err
|
||||
} else {
|
||||
err := p.ProxyHTTP(rw, req)
|
||||
return err
|
||||
}
|
||||
}
|
||||
216
mod/dynamicproxy/dynamicproxy.go
Normal file
216
mod/dynamicproxy/dynamicproxy.go
Normal file
@@ -0,0 +1,216 @@
|
||||
package dynamicproxy
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"log"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"imuslab.com/arozos/ReverseProxy/mod/dynamicproxy/dpcore"
|
||||
"imuslab.com/arozos/ReverseProxy/mod/reverseproxy"
|
||||
)
|
||||
|
||||
/*
|
||||
Allow users to setup manual proxying for specific path
|
||||
|
||||
*/
|
||||
type Router struct {
|
||||
ListenPort int
|
||||
ProxyEndpoints *sync.Map
|
||||
SubdomainEndpoint *sync.Map
|
||||
Running bool
|
||||
Root *ProxyEndpoint
|
||||
mux http.Handler
|
||||
useTLS bool
|
||||
server *http.Server
|
||||
}
|
||||
|
||||
type RouterOption struct {
|
||||
Port int
|
||||
}
|
||||
|
||||
type ProxyEndpoint struct {
|
||||
Root string
|
||||
Domain string
|
||||
RequireTLS bool
|
||||
Proxy *dpcore.ReverseProxy `json:"-"`
|
||||
}
|
||||
|
||||
type SubdomainEndpoint struct {
|
||||
MatchingDomain string
|
||||
Domain string
|
||||
RequireTLS bool
|
||||
Proxy *reverseproxy.ReverseProxy `json:"-"`
|
||||
}
|
||||
|
||||
type ProxyHandler struct {
|
||||
Parent *Router
|
||||
}
|
||||
|
||||
func NewDynamicProxy(port int) (*Router, error) {
|
||||
proxyMap := sync.Map{}
|
||||
domainMap := sync.Map{}
|
||||
thisRouter := Router{
|
||||
ListenPort: port,
|
||||
ProxyEndpoints: &proxyMap,
|
||||
SubdomainEndpoint: &domainMap,
|
||||
Running: false,
|
||||
useTLS: false,
|
||||
server: nil,
|
||||
}
|
||||
|
||||
thisRouter.mux = &ProxyHandler{
|
||||
Parent: &thisRouter,
|
||||
}
|
||||
|
||||
return &thisRouter, nil
|
||||
}
|
||||
|
||||
//Start the dynamic routing
|
||||
func (router *Router) StartProxyService() error {
|
||||
//Create a new server object
|
||||
if router.server != nil {
|
||||
return errors.New("Reverse proxy server already running")
|
||||
}
|
||||
|
||||
if router.Root == nil {
|
||||
return errors.New("Reverse proxy router root not set")
|
||||
}
|
||||
|
||||
router.server = &http.Server{Addr: ":" + strconv.Itoa(router.ListenPort), Handler: router.mux}
|
||||
router.Running = true
|
||||
go func() {
|
||||
err := router.server.ListenAndServe()
|
||||
log.Println("[DynamicProxy] " + err.Error())
|
||||
}()
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (router *Router) StopProxyService() error {
|
||||
if router.server == nil {
|
||||
return errors.New("Reverse proxy server already stopped")
|
||||
}
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
||||
defer cancel()
|
||||
err := router.server.Shutdown(ctx)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
//Discard the server object
|
||||
router.server = nil
|
||||
router.Running = false
|
||||
return nil
|
||||
}
|
||||
|
||||
/*
|
||||
Add an URL into a custom proxy services
|
||||
*/
|
||||
func (router *Router) AddVirtualDirectoryProxyService(rootname string, domain string, requireTLS bool) error {
|
||||
if domain[len(domain)-1:] == "/" {
|
||||
domain = domain[:len(domain)-1]
|
||||
}
|
||||
|
||||
if rootname[len(rootname)-1:] == "/" {
|
||||
rootname = rootname[:len(rootname)-1]
|
||||
}
|
||||
|
||||
webProxyEndpoint := domain
|
||||
if requireTLS {
|
||||
webProxyEndpoint = "https://" + webProxyEndpoint
|
||||
} else {
|
||||
webProxyEndpoint = "http://" + webProxyEndpoint
|
||||
}
|
||||
//Create a new proxy agent for this root
|
||||
path, err := url.Parse(webProxyEndpoint)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
proxy := dpcore.NewDynamicProxyCore(path, rootname)
|
||||
|
||||
endpointObject := ProxyEndpoint{
|
||||
Root: rootname,
|
||||
Domain: domain,
|
||||
RequireTLS: requireTLS,
|
||||
Proxy: proxy,
|
||||
}
|
||||
|
||||
router.ProxyEndpoints.Store(rootname, &endpointObject)
|
||||
|
||||
log.Println("Adding Proxy Rule: ", rootname+" to "+domain)
|
||||
return nil
|
||||
}
|
||||
|
||||
/*
|
||||
Remove routing from RP
|
||||
|
||||
*/
|
||||
func (router *Router) RemoveProxy(ptype string, key string) error {
|
||||
if ptype == "vdir" {
|
||||
router.ProxyEndpoints.Delete(key)
|
||||
return nil
|
||||
} else if ptype == "subd" {
|
||||
router.SubdomainEndpoint.Delete(key)
|
||||
return nil
|
||||
}
|
||||
return errors.New("invalid ptype")
|
||||
}
|
||||
|
||||
/*
|
||||
Add an default router for the proxy server
|
||||
*/
|
||||
func (router *Router) SetRootProxy(proxyLocation string, requireTLS bool) error {
|
||||
if proxyLocation[len(proxyLocation)-1:] == "/" {
|
||||
proxyLocation = proxyLocation[:len(proxyLocation)-1]
|
||||
}
|
||||
|
||||
webProxyEndpoint := proxyLocation
|
||||
if requireTLS {
|
||||
webProxyEndpoint = "https://" + webProxyEndpoint
|
||||
} else {
|
||||
webProxyEndpoint = "http://" + webProxyEndpoint
|
||||
}
|
||||
//Create a new proxy agent for this root
|
||||
path, err := url.Parse(webProxyEndpoint)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
proxy := dpcore.NewDynamicProxyCore(path, "")
|
||||
|
||||
rootEndpoint := ProxyEndpoint{
|
||||
Root: "/",
|
||||
Domain: proxyLocation,
|
||||
RequireTLS: requireTLS,
|
||||
Proxy: proxy,
|
||||
}
|
||||
|
||||
router.Root = &rootEndpoint
|
||||
return nil
|
||||
}
|
||||
|
||||
//Do all the main routing in here
|
||||
func (h *ProxyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||||
if strings.Contains(r.Host, ".") {
|
||||
//This might be a subdomain. See if there are any subdomain proxy router for this
|
||||
sep := h.Parent.getSubdomainProxyEndpointFromHostname(r.Host)
|
||||
if sep != nil {
|
||||
h.subdomainRequest(w, r, sep)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
targetProxyEndpoint := h.Parent.getTargetProxyEndpointFromRequestURI(r.RequestURI)
|
||||
if targetProxyEndpoint != nil {
|
||||
h.proxyRequest(w, r, targetProxyEndpoint)
|
||||
} else {
|
||||
h.proxyRequest(w, r, h.Parent.Root)
|
||||
}
|
||||
}
|
||||
99
mod/dynamicproxy/proxyRequestHandler.go
Normal file
99
mod/dynamicproxy/proxyRequestHandler.go
Normal file
@@ -0,0 +1,99 @@
|
||||
package dynamicproxy
|
||||
|
||||
import (
|
||||
"log"
|
||||
"net/http"
|
||||
"net/url"
|
||||
|
||||
"imuslab.com/arozos/ReverseProxy/mod/websocketproxy"
|
||||
)
|
||||
|
||||
func (router *Router) getTargetProxyEndpointFromRequestURI(requestURI string) *ProxyEndpoint {
|
||||
var targetProxyEndpoint *ProxyEndpoint = nil
|
||||
router.ProxyEndpoints.Range(func(key, value interface{}) bool {
|
||||
rootname := key.(string)
|
||||
if len(requestURI) >= len(rootname) && requestURI[:len(rootname)] == rootname {
|
||||
thisProxyEndpoint := value.(*ProxyEndpoint)
|
||||
targetProxyEndpoint = thisProxyEndpoint
|
||||
}
|
||||
return true
|
||||
})
|
||||
|
||||
return targetProxyEndpoint
|
||||
}
|
||||
|
||||
func (router *Router) getSubdomainProxyEndpointFromHostname(hostname string) *SubdomainEndpoint {
|
||||
var targetSubdomainEndpoint *SubdomainEndpoint = nil
|
||||
ep, ok := router.SubdomainEndpoint.Load(hostname)
|
||||
if ok {
|
||||
targetSubdomainEndpoint = ep.(*SubdomainEndpoint)
|
||||
}
|
||||
|
||||
return targetSubdomainEndpoint
|
||||
}
|
||||
|
||||
func (router *Router) rewriteURL(rooturl string, requestURL string) string {
|
||||
if len(requestURL) > len(rooturl) {
|
||||
return requestURL[len(rooturl):]
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (h *ProxyHandler) subdomainRequest(w http.ResponseWriter, r *http.Request, target *SubdomainEndpoint) {
|
||||
r.Header.Set("X-Forwarded-Host", r.Host)
|
||||
requestURL := r.URL.String()
|
||||
if r.Header["Upgrade"] != nil && r.Header["Upgrade"][0] == "websocket" {
|
||||
//Handle WebSocket request. Forward the custom Upgrade header and rewrite origin
|
||||
r.Header.Set("A-Upgrade", "websocket")
|
||||
wsRedirectionEndpoint := target.Domain
|
||||
if wsRedirectionEndpoint[len(wsRedirectionEndpoint)-1:] != "/" {
|
||||
//Append / to the end of the redirection endpoint if not exists
|
||||
wsRedirectionEndpoint = wsRedirectionEndpoint + "/"
|
||||
}
|
||||
if len(requestURL) > 0 && requestURL[:1] == "/" {
|
||||
//Remove starting / from request URL if exists
|
||||
requestURL = requestURL[1:]
|
||||
}
|
||||
u, _ := url.Parse("ws://" + wsRedirectionEndpoint + requestURL)
|
||||
if target.RequireTLS {
|
||||
u, _ = url.Parse("wss://" + wsRedirectionEndpoint + requestURL)
|
||||
}
|
||||
wspHandler := websocketproxy.NewProxy(u)
|
||||
wspHandler.ServeHTTP(w, r)
|
||||
return
|
||||
}
|
||||
|
||||
r.Host = r.URL.Host
|
||||
err := target.Proxy.ServeHTTP(w, r)
|
||||
if err != nil {
|
||||
log.Println(err.Error())
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func (h *ProxyHandler) proxyRequest(w http.ResponseWriter, r *http.Request, target *ProxyEndpoint) {
|
||||
rewriteURL := h.Parent.rewriteURL(target.Root, r.RequestURI)
|
||||
r.URL, _ = url.Parse(rewriteURL)
|
||||
r.Header.Set("X-Forwarded-Host", r.Host)
|
||||
if r.Header["Upgrade"] != nil && r.Header["Upgrade"][0] == "websocket" {
|
||||
//Handle WebSocket request. Forward the custom Upgrade header and rewrite origin
|
||||
r.Header.Set("A-Upgrade", "websocket")
|
||||
wsRedirectionEndpoint := target.Domain
|
||||
if wsRedirectionEndpoint[len(wsRedirectionEndpoint)-1:] != "/" {
|
||||
wsRedirectionEndpoint = wsRedirectionEndpoint + "/"
|
||||
}
|
||||
u, _ := url.Parse("ws://" + wsRedirectionEndpoint + r.URL.String())
|
||||
if target.RequireTLS {
|
||||
u, _ = url.Parse("wss://" + wsRedirectionEndpoint + r.URL.String())
|
||||
}
|
||||
wspHandler := websocketproxy.NewProxy(u)
|
||||
wspHandler.ServeHTTP(w, r)
|
||||
return
|
||||
}
|
||||
|
||||
r.Host = r.URL.Host
|
||||
err := target.Proxy.ServeHTTP(w, r)
|
||||
if err != nil {
|
||||
log.Println(err.Error())
|
||||
}
|
||||
}
|
||||
44
mod/dynamicproxy/subdomain.go
Normal file
44
mod/dynamicproxy/subdomain.go
Normal file
@@ -0,0 +1,44 @@
|
||||
package dynamicproxy
|
||||
|
||||
import (
|
||||
"log"
|
||||
"net/url"
|
||||
|
||||
"imuslab.com/arozos/ReverseProxy/mod/reverseproxy"
|
||||
)
|
||||
|
||||
/*
|
||||
Add an URL intoa custom subdomain service
|
||||
|
||||
*/
|
||||
|
||||
func (router *Router) AddSubdomainRoutingService(hostnameWithSubdomain string, domain string, requireTLS bool) error {
|
||||
if domain[len(domain)-1:] == "/" {
|
||||
domain = domain[:len(domain)-1]
|
||||
}
|
||||
|
||||
webProxyEndpoint := domain
|
||||
if requireTLS {
|
||||
webProxyEndpoint = "https://" + webProxyEndpoint
|
||||
} else {
|
||||
webProxyEndpoint = "http://" + webProxyEndpoint
|
||||
}
|
||||
|
||||
//Create a new proxy agent for this root
|
||||
path, err := url.Parse(webProxyEndpoint)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
proxy := reverseproxy.NewReverseProxy(path)
|
||||
|
||||
router.SubdomainEndpoint.Store(hostnameWithSubdomain, &SubdomainEndpoint{
|
||||
MatchingDomain: hostnameWithSubdomain,
|
||||
Domain: domain,
|
||||
RequireTLS: requireTLS,
|
||||
Proxy: proxy,
|
||||
})
|
||||
|
||||
log.Println("Adding Subdomain Rule: ", hostnameWithSubdomain+" to "+domain)
|
||||
return nil
|
||||
}
|
||||
Reference in New Issue
Block a user