1c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 2c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Use of this source code is governed by a BSD-style license that can be 3c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// found in the LICENSE file. 4c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 5c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "net/proxy/proxy_resolver_winhttp.h" 6c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 7c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <windows.h> 8c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <winhttp.h> 9c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 10731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick#include "base/metrics/histogram.h" 11c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "base/string_util.h" 123345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#include "base/utf_string_conversions.h" 13c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "googleurl/src/gurl.h" 14c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "net/base/net_errors.h" 15c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "net/proxy/proxy_info.h" 16c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 17c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#pragma comment(lib, "winhttp.lib") 18c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 19c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottusing base::TimeDelta; 20c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottusing base::TimeTicks; 21c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 22c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottnamespace net { 23c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 24c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottstatic void FreeInfo(WINHTTP_PROXY_INFO* info) { 25c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (info->lpszProxy) 26c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott GlobalFree(info->lpszProxy); 27c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (info->lpszProxyBypass) 28c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott GlobalFree(info->lpszProxyBypass); 29c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 30c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 31c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick ScottProxyResolverWinHttp::ProxyResolverWinHttp() 32c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott : ProxyResolver(false /*expects_pac_bytes*/), session_handle_(NULL) { 33c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 34c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 35c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick ScottProxyResolverWinHttp::~ProxyResolverWinHttp() { 36c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott CloseWinHttpSession(); 37c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 38c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 39c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint ProxyResolverWinHttp::GetProxyForURL(const GURL& query_url, 40c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ProxyInfo* results, 41c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott CompletionCallback* /*callback*/, 42c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott RequestHandle* /*request*/, 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const BoundNetLog& /*net_log*/) { 44c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // If we don't have a WinHTTP session, then create a new one. 45c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (!session_handle_ && !OpenWinHttpSession()) 46c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return ERR_FAILED; 47c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 48c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // If we have been given an empty PAC url, then use auto-detection. 49c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 50c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // NOTE: We just use DNS-based auto-detection here like Firefox. We do this 51c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // to avoid WinHTTP's auto-detection code, which while more featureful (it 52c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // supports DHCP based auto-detection) also appears to have issues. 53c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 54c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WINHTTP_AUTOPROXY_OPTIONS options = {0}; 55c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott options.fAutoLogonIfChallenged = FALSE; 56c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott options.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL; 57c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott std::wstring pac_url_wide = ASCIIToWide(pac_url_.spec()); 58c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott options.lpszAutoConfigUrl = pac_url_wide.c_str(); 59c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 60c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WINHTTP_PROXY_INFO info = {0}; 61c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DCHECK(session_handle_); 62c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 63c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Per http://msdn.microsoft.com/en-us/library/aa383153(VS.85).aspx, it is 64c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // necessary to first try resolving with fAutoLogonIfChallenged set to false. 65c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Otherwise, we fail over to trying it with a value of true. This way we 66c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // get good performance in the case where WinHTTP uses an out-of-process 67c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // resolver. This is important for Vista and Win2k3. 6821d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen BOOL ok = WinHttpGetProxyForUrl( 69c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott session_handle_, ASCIIToWide(query_url.spec()).c_str(), &options, &info); 70c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (!ok) { 71c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (ERROR_WINHTTP_LOGIN_FAILURE == GetLastError()) { 72c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott options.fAutoLogonIfChallenged = TRUE; 7321d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen ok = WinHttpGetProxyForUrl( 74c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott session_handle_, ASCIIToWide(query_url.spec()).c_str(), 75c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott &options, &info); 76c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 77c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (!ok) { 78c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DWORD error = GetLastError(); 79c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott LOG(ERROR) << "WinHttpGetProxyForUrl failed: " << error; 80c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // If we got here because of RPC timeout during out of process PAC 81c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // resolution, no further requests on this session are going to work. 82c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (ERROR_WINHTTP_TIMEOUT == error || 83c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR == error) { 84c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott CloseWinHttpSession(); 85c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 86c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return ERR_FAILED; // TODO(darin): Bug 1189288: translate error code. 87c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 88c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 89c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 90c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott int rv = OK; 91c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 92c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott switch (info.dwAccessType) { 93c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott case WINHTTP_ACCESS_TYPE_NO_PROXY: 94c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott results->UseDirect(); 95c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott break; 96c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott case WINHTTP_ACCESS_TYPE_NAMED_PROXY: 97c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // According to MSDN: 98c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 99c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The proxy server list contains one or more of the following strings 100c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // separated by semicolons or whitespace. 101c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 102c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // ([<scheme>=][<scheme>"://"]<server>[":"<port>]) 103c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 104c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Based on this description, ProxyInfo::UseNamedProxy() isn't 105c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // going to handle all the variations (in particular <scheme>=). 106c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 107c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // However in practice, it seems that WinHTTP is simply returning 108c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // things like "foopy1:80;foopy2:80". It strips out the non-HTTP 109c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // proxy types, and stops the list when PAC encounters a "DIRECT". 110c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // So UseNamedProxy() should work OK. 111c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott results->UseNamedProxy(WideToASCII(info.lpszProxy)); 112c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott break; 113c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott default: 114c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott NOTREACHED(); 115c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott rv = ERR_FAILED; 116c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 117c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 118c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FreeInfo(&info); 119c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return rv; 120c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 121c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 122c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottvoid ProxyResolverWinHttp::CancelRequest(RequestHandle request) { 123c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // This is a synchronous ProxyResolver; no possibility for async requests. 124c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott NOTREACHED(); 125c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 126c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 12721d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsenvoid ProxyResolverWinHttp::CancelSetPacScript() { 12821d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen NOTREACHED(); 12921d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen} 13021d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 131c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochint ProxyResolverWinHttp::SetPacScript( 132c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const scoped_refptr<ProxyResolverScriptData>& script_data, 133c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch CompletionCallback* /*callback*/) { 134c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (script_data->type() == ProxyResolverScriptData::TYPE_AUTO_DETECT) { 135c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch pac_url_ = GURL("http://wpad/wpad.dat"); 136c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } else { 137c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch pac_url_ = script_data->url(); 138c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 139c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return OK; 140c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 141c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 142c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottbool ProxyResolverWinHttp::OpenWinHttpSession() { 143c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DCHECK(!session_handle_); 144c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott session_handle_ = WinHttpOpen(NULL, 145c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WINHTTP_ACCESS_TYPE_NO_PROXY, 146c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WINHTTP_NO_PROXY_NAME, 147c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WINHTTP_NO_PROXY_BYPASS, 148c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 0); 149c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (!session_handle_) 150c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return false; 151c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 152c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Since this session handle will never be used for WinHTTP connections, 153c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // these timeouts don't really mean much individually. However, WinHTTP's 154c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // out of process PAC resolution will use a combined (sum of all timeouts) 155c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // value to wait for an RPC reply. 156c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott BOOL rv = WinHttpSetTimeouts(session_handle_, 10000, 10000, 5000, 5000); 157c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DCHECK(rv); 158c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 159c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return true; 160c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 161c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 162c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottvoid ProxyResolverWinHttp::CloseWinHttpSession() { 163c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (session_handle_) { 164c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WinHttpCloseHandle(session_handle_); 165c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott session_handle_ = NULL; 166c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 167c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 168c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 169c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} // namespace net 170