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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/proxy/proxy_resolver_winhttp.h" | |
| 6 | |
| 7 #include <windows.h> | |
| 8 #include <winhttp.h> | |
| 9 | |
| 10 #include "base/metrics/histogram.h" | |
| 11 #include "base/strings/string_util.h" | |
| 12 #include "base/strings/utf_string_conversions.h" | |
| 13 #include "net/base/net_errors.h" | |
| 14 #include "net/proxy/proxy_info.h" | |
| 15 #include "url/gurl.h" | |
| 16 | |
| 17 #pragma comment(lib, "winhttp.lib") | |
| 18 | |
| 19 using base::TimeDelta; | |
| 20 using base::TimeTicks; | |
| 21 | |
| 22 namespace net { | |
| 23 | |
| 24 static void FreeInfo(WINHTTP_PROXY_INFO* info) { | |
| 25 if (info->lpszProxy) | |
| 26 GlobalFree(info->lpszProxy); | |
| 27 if (info->lpszProxyBypass) | |
| 28 GlobalFree(info->lpszProxyBypass); | |
| 29 } | |
| 30 | |
| 31 ProxyResolverWinHttp::ProxyResolverWinHttp() | |
| 32 : ProxyResolver(false /*expects_pac_bytes*/), session_handle_(NULL) { | |
| 33 } | |
| 34 | |
| 35 ProxyResolverWinHttp::~ProxyResolverWinHttp() { | |
| 36 CloseWinHttpSession(); | |
| 37 } | |
| 38 | |
| 39 int ProxyResolverWinHttp::GetProxyForURL(const GURL& query_url, | |
| 40 ProxyInfo* results, | |
| 41 const CompletionCallback& /*callback*/, | |
| 42 RequestHandle* /*request*/, | |
| 43 const BoundNetLog& /*net_log*/) { | |
| 44 // If we don't have a WinHTTP session, then create a new one. | |
| 45 if (!session_handle_ && !OpenWinHttpSession()) | |
| 46 return ERR_FAILED; | |
| 47 | |
| 48 // If we have been given an empty PAC url, then use auto-detection. | |
| 49 // | |
| 50 // NOTE: We just use DNS-based auto-detection here like Firefox. We do this | |
| 51 // to avoid WinHTTP's auto-detection code, which while more featureful (it | |
| 52 // supports DHCP based auto-detection) also appears to have issues. | |
| 53 // | |
| 54 WINHTTP_AUTOPROXY_OPTIONS options = {0}; | |
| 55 options.fAutoLogonIfChallenged = FALSE; | |
| 56 options.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL; | |
| 57 base::string16 pac_url16 = base::ASCIIToUTF16(pac_url_.spec()); | |
| 58 options.lpszAutoConfigUrl = pac_url16.c_str(); | |
| 59 | |
| 60 WINHTTP_PROXY_INFO info = {0}; | |
| 61 DCHECK(session_handle_); | |
| 62 | |
| 63 // Per http://msdn.microsoft.com/en-us/library/aa383153(VS.85).aspx, it is | |
| 64 // necessary to first try resolving with fAutoLogonIfChallenged set to false. | |
| 65 // Otherwise, we fail over to trying it with a value of true. This way we | |
| 66 // get good performance in the case where WinHTTP uses an out-of-process | |
| 67 // resolver. This is important for Vista and Win2k3. | |
| 68 BOOL ok = WinHttpGetProxyForUrl(session_handle_, | |
| 69 base::ASCIIToUTF16(query_url.spec()).c_str(), | |
| 70 &options, &info); | |
| 71 if (!ok) { | |
| 72 if (ERROR_WINHTTP_LOGIN_FAILURE == GetLastError()) { | |
| 73 options.fAutoLogonIfChallenged = TRUE; | |
| 74 ok = WinHttpGetProxyForUrl( | |
| 75 session_handle_, base::ASCIIToUTF16(query_url.spec()).c_str(), | |
| 76 &options, &info); | |
| 77 } | |
| 78 if (!ok) { | |
| 79 DWORD error = GetLastError(); | |
| 80 // If we got here because of RPC timeout during out of process PAC | |
| 81 // resolution, no further requests on this session are going to work. | |
| 82 if (ERROR_WINHTTP_TIMEOUT == error || | |
| 83 ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR == error) { | |
| 84 CloseWinHttpSession(); | |
| 85 } | |
| 86 return ERR_FAILED; // TODO(darin): Bug 1189288: translate error code. | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 int rv = OK; | |
| 91 | |
| 92 switch (info.dwAccessType) { | |
| 93 case WINHTTP_ACCESS_TYPE_NO_PROXY: | |
| 94 results->UseDirect(); | |
| 95 break; | |
| 96 case WINHTTP_ACCESS_TYPE_NAMED_PROXY: | |
| 97 // According to MSDN: | |
| 98 // | |
| 99 // The proxy server list contains one or more of the following strings | |
| 100 // separated by semicolons or whitespace. | |
| 101 // | |
| 102 // ([<scheme>=][<scheme>"://"]<server>[":"<port>]) | |
| 103 // | |
| 104 // Based on this description, ProxyInfo::UseNamedProxy() isn't | |
| 105 // going to handle all the variations (in particular <scheme>=). | |
| 106 // | |
| 107 // However in practice, it seems that WinHTTP is simply returning | |
| 108 // things like "foopy1:80;foopy2:80". It strips out the non-HTTP | |
| 109 // proxy types, and stops the list when PAC encounters a "DIRECT". | |
| 110 // So UseNamedProxy() should work OK. | |
| 111 results->UseNamedProxy(base::UTF16ToASCII(info.lpszProxy)); | |
| 112 break; | |
| 113 default: | |
| 114 NOTREACHED(); | |
| 115 rv = ERR_FAILED; | |
| 116 } | |
| 117 | |
| 118 FreeInfo(&info); | |
| 119 return rv; | |
| 120 } | |
| 121 | |
| 122 void ProxyResolverWinHttp::CancelRequest(RequestHandle request) { | |
| 123 // This is a synchronous ProxyResolver; no possibility for async requests. | |
| 124 NOTREACHED(); | |
| 125 } | |
| 126 | |
| 127 LoadState ProxyResolverWinHttp::GetLoadState(RequestHandle request) const { | |
| 128 NOTREACHED(); | |
| 129 return LOAD_STATE_IDLE; | |
| 130 } | |
| 131 | |
| 132 void ProxyResolverWinHttp::CancelSetPacScript() { | |
| 133 NOTREACHED(); | |
| 134 } | |
| 135 | |
| 136 int ProxyResolverWinHttp::SetPacScript( | |
| 137 const scoped_refptr<ProxyResolverScriptData>& script_data, | |
| 138 const CompletionCallback& /*callback*/) { | |
| 139 if (script_data->type() == ProxyResolverScriptData::TYPE_AUTO_DETECT) { | |
| 140 pac_url_ = GURL("http://wpad/wpad.dat"); | |
| 141 } else { | |
| 142 pac_url_ = script_data->url(); | |
| 143 } | |
| 144 return OK; | |
| 145 } | |
| 146 | |
| 147 bool ProxyResolverWinHttp::OpenWinHttpSession() { | |
| 148 DCHECK(!session_handle_); | |
| 149 session_handle_ = WinHttpOpen(NULL, | |
| 150 WINHTTP_ACCESS_TYPE_NO_PROXY, | |
| 151 WINHTTP_NO_PROXY_NAME, | |
| 152 WINHTTP_NO_PROXY_BYPASS, | |
| 153 0); | |
| 154 if (!session_handle_) | |
| 155 return false; | |
| 156 | |
| 157 // Since this session handle will never be used for WinHTTP connections, | |
| 158 // these timeouts don't really mean much individually. However, WinHTTP's | |
| 159 // out of process PAC resolution will use a combined (sum of all timeouts) | |
| 160 // value to wait for an RPC reply. | |
| 161 BOOL rv = WinHttpSetTimeouts(session_handle_, 10000, 10000, 5000, 5000); | |
| 162 DCHECK(rv); | |
| 163 | |
| 164 return true; | |
| 165 } | |
| 166 | |
| 167 void ProxyResolverWinHttp::CloseWinHttpSession() { | |
| 168 if (session_handle_) { | |
| 169 WinHttpCloseHandle(session_handle_); | |
| 170 session_handle_ = NULL; | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 } // namespace net | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master