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111 lines
2.9 KiB
Go
111 lines
2.9 KiB
Go
package main
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import (
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"bytes"
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"crypto/sha1"
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"crypto/tls"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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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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"github.com/yookoala/gofast"
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)
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type fakeResponseWriter struct {
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io.WriteCloser
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header http.Header
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}
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func newFakeResponseWriter(out io.WriteCloser) *fakeResponseWriter {
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return &fakeResponseWriter{
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WriteCloser: out,
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header: make(http.Header),
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}
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}
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func (w *fakeResponseWriter) Header() http.Header {
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return w.header
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}
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func (w *fakeResponseWriter) WriteHeader(statusCode int) {
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// Do nothing
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}
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func serveFastCGI(c *tls.Conn, connFactory gofast.ConnFactory, u *url.URL, filePath string) {
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header := map[string][]string{
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"Accept": {"*/*"},
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"Host": {u.Hostname()},
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}
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r := &http.Request{
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Method: "GET",
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URL: u,
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Proto: "HTTP/1.1",
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ProtoMajor: 1,
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ProtoMinor: 1,
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Header: header,
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Body: ioutil.NopCloser(bytes.NewReader(nil)),
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Host: u.Host,
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RemoteAddr: c.RemoteAddr().String(),
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}
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req := gofast.NewRequest(r)
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req.Params["CONTENT_TYPE"] = r.Header.Get("Content-Type")
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req.Params["CONTENT_LENGTH"] = r.Header.Get("Content-Length")
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req.Params["HTTP_HOST"] = r.Host
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req.Params["HTTPS"] = "on"
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req.Params["GATEWAY_INTERFACE"] = "CGI/1.1"
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req.Params["REMOTE_ADDR"] = strings.SplitN(c.RemoteAddr().String(), ":", 2)[0]
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req.Params["REMOTE_PORT"] = "1965"
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req.Params["SERVER_PORT"] = "1965"
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req.Params["SERVER_NAME"] = r.Host
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req.Params["SERVER_PROTOCOL"] = r.Proto
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req.Params["SERVER_SOFTWARE"] = "twins"
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req.Params["REDIRECT_STATUS"] = "200"
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req.Params["REQUEST_METHOD"] = r.Method
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req.Params["REQUEST_URI"] = r.RequestURI
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req.Params["QUERY_STRING"] = r.URL.RawQuery
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req.Params["DOCUMENT_ROOT"] = filepath.Dir(filePath)
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req.Params["DOCUMENT_URI"] = r.URL.Path
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req.Params["SCRIPT_FILENAME"] = filePath
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req.Params["SCRIPT_NAME"] = filepath.Base(filePath)
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certLabel := 'A'
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clientCerts := c.ConnectionState().PeerCertificates
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for i := 0; i < len(clientCerts) && i < 26; i++ {
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req.Params["CLIENT_CERT_"+string(certLabel+rune(i))] = fmt.Sprintf("%x", sha1.Sum(clientCerts[i].Raw))
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}
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w := newFakeResponseWriter(c)
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client, err := gofast.SimpleClientFactory(connFactory)()
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if err != nil {
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log.Printf("FastCGI Error: %s", err)
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http.Error(w, "Failed to connect to FastCGI server", http.StatusInternalServerError)
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return
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}
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resp, err := client.Do(req)
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if err != nil {
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log.Printf("FastCGI Error: %s", err)
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http.Error(w, "Failed to connect to FastCGI server", http.StatusInternalServerError)
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return
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}
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errBuffer := new(bytes.Buffer)
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err = resp.WriteTo(w, errBuffer)
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if err != nil {
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log.Printf("FastCGI Error: %s", err)
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http.Error(w, "Failed to connect to FastCGI server", http.StatusInternalServerError)
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return
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} else if errBuffer.Len() > 0 {
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log.Printf("FastCGI Error: %s", errBuffer.String())
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http.Error(w, "Failed to connect to FastCGI server", http.StatusInternalServerError)
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}
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}
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