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authorLibravatar Terin Stock <terinjokes@gmail.com>2025-03-09 17:47:56 +0100
committerLibravatar Terin Stock <terinjokes@gmail.com>2025-12-01 22:08:04 +0100
commitb1af8fd87760b34e3ff2fd3bda38f211815a0473 (patch)
tree9317fad1a7ec298d7a8d2678e4e422953bbc6f33 /vendor/google.golang.org/grpc/internal/transport/proxy.go
parent[chore] update URLs to forked source (diff)
downloadgotosocial-b1af8fd87760b34e3ff2fd3bda38f211815a0473.tar.xz
[chore] remove vendor
Diffstat (limited to 'vendor/google.golang.org/grpc/internal/transport/proxy.go')
-rw-r--r--vendor/google.golang.org/grpc/internal/transport/proxy.go116
1 files changed, 0 insertions, 116 deletions
diff --git a/vendor/google.golang.org/grpc/internal/transport/proxy.go b/vendor/google.golang.org/grpc/internal/transport/proxy.go
deleted file mode 100644
index d77384595..000000000
--- a/vendor/google.golang.org/grpc/internal/transport/proxy.go
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- *
- * Copyright 2017 gRPC authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-package transport
-
-import (
- "bufio"
- "context"
- "encoding/base64"
- "fmt"
- "io"
- "net"
- "net/http"
- "net/http/httputil"
- "net/url"
-
- "google.golang.org/grpc/internal"
- "google.golang.org/grpc/internal/proxyattributes"
- "google.golang.org/grpc/resolver"
-)
-
-const proxyAuthHeaderKey = "Proxy-Authorization"
-
-// To read a response from a net.Conn, http.ReadResponse() takes a bufio.Reader.
-// It's possible that this reader reads more than what's need for the response
-// and stores those bytes in the buffer. bufConn wraps the original net.Conn
-// and the bufio.Reader to make sure we don't lose the bytes in the buffer.
-type bufConn struct {
- net.Conn
- r io.Reader
-}
-
-func (c *bufConn) Read(b []byte) (int, error) {
- return c.r.Read(b)
-}
-
-func basicAuth(username, password string) string {
- auth := username + ":" + password
- return base64.StdEncoding.EncodeToString([]byte(auth))
-}
-
-func doHTTPConnectHandshake(ctx context.Context, conn net.Conn, grpcUA string, opts proxyattributes.Options) (_ net.Conn, err error) {
- defer func() {
- if err != nil {
- conn.Close()
- }
- }()
-
- req := &http.Request{
- Method: http.MethodConnect,
- URL: &url.URL{Host: opts.ConnectAddr},
- Header: map[string][]string{"User-Agent": {grpcUA}},
- }
- if user := opts.User; user != nil {
- u := user.Username()
- p, _ := user.Password()
- req.Header.Add(proxyAuthHeaderKey, "Basic "+basicAuth(u, p))
- }
- if err := sendHTTPRequest(ctx, req, conn); err != nil {
- return nil, fmt.Errorf("failed to write the HTTP request: %v", err)
- }
-
- r := bufio.NewReader(conn)
- resp, err := http.ReadResponse(r, req)
- if err != nil {
- return nil, fmt.Errorf("reading server HTTP response: %v", err)
- }
- defer resp.Body.Close()
- if resp.StatusCode != http.StatusOK {
- dump, err := httputil.DumpResponse(resp, true)
- if err != nil {
- return nil, fmt.Errorf("failed to do connect handshake, status code: %s", resp.Status)
- }
- return nil, fmt.Errorf("failed to do connect handshake, response: %q", dump)
- }
- // The buffer could contain extra bytes from the target server, so we can't
- // discard it. However, in many cases where the server waits for the client
- // to send the first message (e.g. when TLS is being used), the buffer will
- // be empty, so we can avoid the overhead of reading through this buffer.
- if r.Buffered() != 0 {
- return &bufConn{Conn: conn, r: r}, nil
- }
- return conn, nil
-}
-
-// proxyDial establishes a TCP connection to the specified address and performs an HTTP CONNECT handshake.
-func proxyDial(ctx context.Context, addr resolver.Address, grpcUA string, opts proxyattributes.Options) (net.Conn, error) {
- conn, err := internal.NetDialerWithTCPKeepalive().DialContext(ctx, "tcp", addr.Addr)
- if err != nil {
- return nil, err
- }
- return doHTTPConnectHandshake(ctx, conn, grpcUA, opts)
-}
-
-func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
- req = req.WithContext(ctx)
- if err := req.Write(conn); err != nil {
- return fmt.Errorf("failed to write the HTTP request: %v", err)
- }
- return nil
-}