1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798 |
- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "net/http/proxy_client_socket.h"
- #include <unordered_set>
- #include "base/metrics/histogram_macros.h"
- #include "base/strings/string_util.h"
- #include "base/strings/stringprintf.h"
- #include "net/base/host_port_pair.h"
- #include "net/base/net_errors.h"
- #include "net/http/http_auth_controller.h"
- #include "net/http/http_request_info.h"
- #include "net/http/http_response_headers.h"
- #include "net/http/http_response_info.h"
- #include "url/gurl.h"
- namespace net {
- void ProxyClientSocket::SetStreamPriority(RequestPriority priority) {}
- // static
- void ProxyClientSocket::BuildTunnelRequest(
- const HostPortPair& endpoint,
- const HttpRequestHeaders& extra_headers,
- const std::string& user_agent,
- std::string* request_line,
- HttpRequestHeaders* request_headers) {
- // RFC 7230 Section 5.4 says a client MUST send a Host header field in all
- // HTTP/1.1 request messages, and Host SHOULD be the first header field
- // following the request-line. Add "Proxy-Connection: keep-alive" for compat
- // with HTTP/1.0 proxies such as Squid (required for NTLM authentication).
- std::string host_and_port = endpoint.ToString();
- *request_line =
- base::StringPrintf("CONNECT %s HTTP/1.1\r\n", host_and_port.c_str());
- request_headers->SetHeader(HttpRequestHeaders::kHost, host_and_port);
- request_headers->SetHeader(HttpRequestHeaders::kProxyConnection,
- "keep-alive");
- if (!user_agent.empty())
- request_headers->SetHeader(HttpRequestHeaders::kUserAgent, user_agent);
- request_headers->MergeFrom(extra_headers);
- }
- // static
- int ProxyClientSocket::HandleProxyAuthChallenge(
- HttpAuthController* auth,
- HttpResponseInfo* response,
- const NetLogWithSource& net_log) {
- DCHECK(response->headers.get());
- int rv = auth->HandleAuthChallenge(response->headers, response->ssl_info,
- false, true, net_log);
- auth->TakeAuthInfo(&response->auth_challenge);
- if (rv == OK)
- return ERR_PROXY_AUTH_REQUESTED;
- return rv;
- }
- // static
- void ProxyClientSocket::SanitizeProxyAuth(HttpResponseInfo& response) {
- DCHECK(response.headers);
- // Copy status line and all hop-by-hop headers to preserve keep-alive
- // behavior.
- const char* kHeadersToKeep[] = {
- "connection", "proxy-connection", "keep-alive", "trailer",
- "transfer-encoding", "upgrade",
- "content-length",
- "proxy-authenticate",
- };
- // Create a list of all present header not in |kHeadersToKeep|, and then
- // remove them.
- size_t iter = 0;
- std::string header_name;
- std::string header_value;
- std::unordered_set<std::string> headers_to_remove;
- while (response.headers->EnumerateHeaderLines(&iter, &header_name,
- &header_value)) {
- bool remove = true;
- for (const char* header : kHeadersToKeep) {
- if (base::EqualsCaseInsensitiveASCII(header, header_name)) {
- remove = false;
- break;
- }
- }
- if (remove)
- headers_to_remove.insert(header_name);
- }
- response.headers->RemoveHeaders(headers_to_remove);
- }
- } // namespace net
|