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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 typedef struct __CFHTTPMessage* CFHTTPMessageRef;
     40 
     41 namespace WebCore {
     42 
     43 class AuthenticationChallenge;
     44 class Credential;
     45 class SocketStreamHandleClient;
     46 
     47 class SocketStreamHandle : public ThreadSafeRefCounted<SocketStreamHandle>, public SocketStreamHandleBase, public AuthenticationClient {
     48 public:
     49     static PassRefPtr<SocketStreamHandle> create(const KURL& url, SocketStreamHandleClient* client) { return adoptRef(new SocketStreamHandle(url, client)); }
     50 
     51     virtual ~SocketStreamHandle();
     52 
     53     using ThreadSafeRefCounted<SocketStreamHandle>::ref;
     54     using ThreadSafeRefCounted<SocketStreamHandle>::deref;
     55 
     56 private:
     57     virtual int platformSend(const char* data, int length);
     58     virtual void platformClose();
     59 
     60     SocketStreamHandle(const KURL&, SocketStreamHandleClient*);
     61     void createStreams();
     62     void scheduleStreams();
     63     void chooseProxy();
     64 #ifndef BUILDING_ON_TIGER
     65     void chooseProxyFromArray(CFArrayRef);
     66     void executePACFileURL(CFURLRef);
     67     void removePACRunLoopSource();
     68     RetainPtr<CFRunLoopSourceRef> m_pacRunLoopSource;
     69     static void pacExecutionCallback(void* client, CFArrayRef proxyList, CFErrorRef error);
     70     static void pacExecutionCallbackMainThread(void*);
     71     static CFStringRef copyPACExecutionDescription(void*);
     72 #endif
     73 
     74     bool shouldUseSSL() const { return m_url.protocolIs("wss"); }
     75     unsigned short port() const;
     76 
     77     void addCONNECTCredentials(CFHTTPMessageRef response);
     78 
     79     static CFStringRef copyCFStreamDescription(void* );
     80     static void readStreamCallback(CFReadStreamRef, CFStreamEventType, void*);
     81     static void writeStreamCallback(CFWriteStreamRef, CFStreamEventType, void*);
     82 #if PLATFORM(WIN)
     83     static void readStreamCallbackMainThread(void*);
     84     static void writeStreamCallbackMainThread(void*);
     85 #endif
     86     void readStreamCallback(CFStreamEventType);
     87     void writeStreamCallback(CFStreamEventType);
     88 
     89 #ifndef BUILDING_ON_TIGER
     90     void reportErrorToClient(CFErrorRef);
     91 #endif
     92 
     93     // No authentication for streams per se, but proxy may ask for credentials.
     94     virtual void receivedCredential(const AuthenticationChallenge&, const Credential&);
     95     virtual void receivedRequestToContinueWithoutCredential(const AuthenticationChallenge&);
     96     virtual void receivedCancellation(const AuthenticationChallenge&);
     97 
     98     virtual void refAuthenticationClient() { ref(); }
     99     virtual void derefAuthenticationClient() { deref(); }
    100 
    101     enum ConnectingSubstate { New, ExecutingPACFile, WaitingForCredentials, WaitingForConnect, Connected };
    102     ConnectingSubstate m_connectingSubstate;
    103 
    104     enum ConnectionType { Unknown, Direct, SOCKSProxy, CONNECTProxy };
    105     ConnectionType m_connectionType;
    106     RetainPtr<CFStringRef> m_proxyHost;
    107     RetainPtr<CFNumberRef> m_proxyPort;
    108 
    109     RetainPtr<CFHTTPMessageRef> m_proxyResponseMessage;
    110     bool m_sentStoredCredentials;
    111     RetainPtr<CFReadStreamRef> m_readStream;
    112     RetainPtr<CFWriteStreamRef> m_writeStream;
    113 
    114     RetainPtr<CFURLRef> m_httpsURL; // ws(s): replaced with https:
    115 };
    116 
    117 }  // namespace WebCore
    118 
    119 #endif  // SocketStreamHandle_h
    120