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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ProxyServer.h"
#include "KURL.h"
#include "Logging.h"
#include <wtf/RetainPtr.h>
#include <wtf/text/CString.h>
#if PLATFORM(WIN)
#include <CFNetwork/CFNetwork.h>
#endif
namespace WebCore {
static void processProxyServers(Vector<ProxyServer>& proxyServers, CFArrayRef proxies, CFURLRef url);
static void proxyAutoConfigurationResultCallback(void *context, CFArrayRef proxies, CFErrorRef error)
{
// We only expect a single result callback per invocation. Stop our runloop to unblock our caller.
CFRunLoopStop(CFRunLoopGetCurrent());
Vector<ProxyServer>* proxyServers = (Vector<ProxyServer>*)context;
if (!proxies) {
ASSERT(error);
RetainPtr<CFStringRef> errorDescriptionCF = adoptCF(CFErrorCopyDescription(error));
String errorDescription(errorDescriptionCF.get());
LOG(Network, "Failed to process proxy auto-configuration file with error: %s", errorDescription.utf8().data());
return;
}
processProxyServers(*proxyServers, proxies, 0);
}
static void processProxyServers(Vector<ProxyServer>& proxyServers, CFArrayRef proxies, CFURLRef url)
{
CFIndex numProxies = CFArrayGetCount(proxies);
for (CFIndex i = 0; i < numProxies; ++i) {
CFDictionaryRef proxyDictionary = static_cast<CFDictionaryRef>(CFArrayGetValueAtIndex(proxies, i));
ProxyServer::Type type = ProxyServer::Direct;
CFStringRef typeString = static_cast<CFStringRef>(CFDictionaryGetValue(proxyDictionary, kCFProxyTypeKey));
if (!url) {
// If we have no URL then we're processing an auto-configuration response.
// It isn't sensible to receive another auto-configured proxy in such a response.
ASSERT(!CFEqual(typeString, kCFProxyTypeAutoConfigurationURL));
}
if (CFEqual(typeString, kCFProxyTypeAutoConfigurationURL)) {
if (!url)
continue;
// FIXME: We should restructure to allow this to happen asynchronously.
CFURLRef scriptURL = static_cast<CFURLRef>(CFDictionaryGetValue(proxyDictionary, kCFProxyAutoConfigurationURLKey));
if (!scriptURL || CFGetTypeID(scriptURL) != CFURLGetTypeID())
continue;
CFStreamClientContext context = { 0, (void*)&proxyServers, 0, 0, 0 };
RetainPtr<CFRunLoopSourceRef> runLoopSource = adoptCF(CFNetworkExecuteProxyAutoConfigurationURL(scriptURL, url, proxyAutoConfigurationResultCallback, &context));
CFStringRef privateRunLoopMode = CFSTR("com.apple.WebKit.ProxyAutoConfiguration");
CFTimeInterval timeout = 5;
CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource.get(), privateRunLoopMode);
CFRunLoopRunInMode(privateRunLoopMode, timeout, 0);
CFRunLoopRemoveSource(CFRunLoopGetCurrent(), runLoopSource.get(), privateRunLoopMode);
CFRunLoopSourceInvalidate(runLoopSource.get());
// The proxyAutoConfigurationResultCallback has added any relevant ProxyServers to proxyServers.
continue;
}
if (CFEqual(typeString, kCFProxyTypeNone)) {
proxyServers.append(ProxyServer(ProxyServer::Direct, String(), -1));
continue;
}
if (CFEqual(typeString, kCFProxyTypeHTTP))
type = ProxyServer::HTTP;
else if (CFEqual(typeString, kCFProxyTypeHTTPS))
type = ProxyServer::HTTPS;
else if (CFEqual(typeString, kCFProxyTypeSOCKS))
type = ProxyServer::SOCKS;
else {
// We don't know how to handle this type.
continue;
}
CFStringRef host = static_cast<CFStringRef>(CFDictionaryGetValue(proxyDictionary, kCFProxyHostNameKey));
CFNumberRef port = static_cast<CFNumberRef>(CFDictionaryGetValue(proxyDictionary, kCFProxyPortNumberKey));
SInt32 portValue;
CFNumberGetValue(port, kCFNumberSInt32Type, &portValue);
proxyServers.append(ProxyServer(type, host, portValue));
}
}
static void addProxyServersForURL(Vector<ProxyServer>& proxyServers, const KURL& url)
{
RetainPtr<CFDictionaryRef> proxySettings = adoptCF(CFNetworkCopySystemProxySettings());
if (!proxySettings)
return;
RetainPtr<CFURLRef> cfURL = url.createCFURL();
RetainPtr<CFArrayRef> proxiesForURL = adoptCF(CFNetworkCopyProxiesForURL(cfURL.get(), proxySettings.get()));
if (!proxiesForURL)
return;
processProxyServers(proxyServers, proxiesForURL.get(), cfURL.get());
}
Vector<ProxyServer> proxyServersForURL(const KURL& url, const NetworkingContext*)
{
Vector<ProxyServer> proxyServers;
addProxyServersForURL(proxyServers, url);
return proxyServers;
}
} // namespace WebCore
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