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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  * Copyright (C) 2009 Google Inc.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef SocketStreamHandle_h
     33 #define SocketStreamHandle_h
     34 
     35 #include "AuthenticationClient.h"
     36 #include "SocketStreamHandleBase.h"
     37 #include <wtf/RetainPtr.h>
     38 
     39 namespace WebCore {
     40 
     41     class AuthenticationChallenge;
     42     class Credential;
     43     class SocketStreamHandleClient;
     44 
     45     class SocketStreamHandle : public RefCounted<SocketStreamHandle>, public SocketStreamHandleBase, public AuthenticationClient {
     46     public:
     47         static PassRefPtr<SocketStreamHandle> create(const KURL& url, SocketStreamHandleClient* client) { return adoptRef(new SocketStreamHandle(url, client)); }
     48 
     49         virtual ~SocketStreamHandle();
     50 
     51         using RefCounted<SocketStreamHandle>::ref;
     52         using RefCounted<SocketStreamHandle>::deref;
     53 
     54     private:
     55         virtual int platformSend(const char* data, int length);
     56         virtual void platformClose();
     57 
     58         SocketStreamHandle(const KURL&, SocketStreamHandleClient*);
     59         void createStreams();
     60         void scheduleStreams();
     61         void chooseProxy();
     62 #ifndef BUILDING_ON_TIGER
     63         void chooseProxyFromArray(CFArrayRef);
     64         void executePACFileURL(CFURLRef);
     65         void removePACRunLoopSource();
     66         RetainPtr<CFRunLoopSourceRef> m_pacRunLoopSource;
     67         static void pacExecutionCallback(void* client, CFArrayRef proxyList, CFErrorRef error);
     68         static void pacExecutionCallbackMainThread(void*);
     69         static CFStringRef copyPACExecutionDescription(void*);
     70 #endif
     71 
     72         bool shouldUseSSL() const { return m_url.protocolIs("wss"); }
     73 
     74         void addCONNECTCredentials(CFHTTPMessageRef response);
     75 
     76         static CFStringRef copyCFStreamDescription(void* );
     77         static void readStreamCallback(CFReadStreamRef, CFStreamEventType, void*);
     78         static void writeStreamCallback(CFWriteStreamRef, CFStreamEventType, void*);
     79 #if PLATFORM(WIN)
     80         static void readStreamCallbackMainThread(void*);
     81         static void writeStreamCallbackMainThread(void*);
     82 #endif
     83         void readStreamCallback(CFStreamEventType);
     84         void writeStreamCallback(CFStreamEventType);
     85 
     86         // No authentication for streams per se, but proxy may ask for credentials.
     87         virtual void receivedCredential(const AuthenticationChallenge&, const Credential&);
     88         virtual void receivedRequestToContinueWithoutCredential(const AuthenticationChallenge&);
     89         virtual void receivedCancellation(const AuthenticationChallenge&);
     90 
     91         virtual void refAuthenticationClient() { ref(); }
     92         virtual void derefAuthenticationClient() { deref(); }
     93 
     94         enum ConnectingSubstate { New, ExecutingPACFile, WaitingForCredentials, WaitingForConnect, Connected };
     95         ConnectingSubstate m_connectingSubstate;
     96 
     97         enum ConnectionType { Unknown, Direct, SOCKSProxy, CONNECTProxy };
     98         ConnectionType m_connectionType;
     99         RetainPtr<CFStringRef> m_proxyHost;
    100         RetainPtr<CFNumberRef> m_proxyPort;
    101 
    102         RetainPtr<CFHTTPMessageRef> m_proxyResponseMessage;
    103         bool m_sentStoredCredentials;
    104         RetainPtr<CFReadStreamRef> m_readStream;
    105         RetainPtr<CFWriteStreamRef> m_writeStream;
    106 
    107         RetainPtr<CFURLRef> m_httpsURL; // ws(s): replaced with https:
    108     };
    109 
    110 }  // namespace WebCore
    111 
    112 #endif  // SocketStreamHandle_h
    113