mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
125 lines
4.0 KiB
C++
125 lines
4.0 KiB
C++
// 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/rand_util.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 {
|
|
|
|
// static
|
|
void ProxyClientSocket::BuildTunnelRequest(
|
|
const HostPortPair& endpoint,
|
|
const HttpRequestHeaders& auth_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(auth_headers);
|
|
request_headers->SetHeader("Padding", std::string(base::RandInt(16, 32), '.'));
|
|
}
|
|
|
|
// 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);
|
|
response->auth_challenge = auth->auth_info();
|
|
if (rv == OK)
|
|
return ERR_PROXY_AUTH_REQUESTED;
|
|
return rv;
|
|
}
|
|
|
|
// static
|
|
bool ProxyClientSocket::SanitizeProxyAuth(HttpResponseInfo* response) {
|
|
DCHECK(response && response->headers.get());
|
|
|
|
// 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);
|
|
|
|
return true;
|
|
}
|
|
|
|
// static
|
|
bool ProxyClientSocket::SanitizeProxyRedirect(HttpResponseInfo* response) {
|
|
DCHECK(response && response->headers.get());
|
|
|
|
std::string location;
|
|
if (!response->headers->IsRedirect(&location))
|
|
return false;
|
|
|
|
// Return minimal headers; set "Content-Length: 0" to ignore response body.
|
|
std::string fake_response_headers = base::StringPrintf(
|
|
"HTTP/1.0 302 Found\n"
|
|
"Location: %s\n"
|
|
"Content-Length: 0\n"
|
|
"Connection: close\n"
|
|
"\n",
|
|
location.c_str());
|
|
std::string raw_headers =
|
|
HttpUtil::AssembleRawHeaders(fake_response_headers.data(),
|
|
fake_response_headers.length());
|
|
response->headers = new HttpResponseHeaders(raw_headers);
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace net
|