WebCore/ResourceResponseCFNet.cpp

   1 /*
   2  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "ResourceResponseCFNet.h"
  28
  29 #include "HTTPParsers.h"
  30 #include "MIMETypeRegistry.h"
  31 #include "ResourceResponse.h"
  32 #include <CFNetwork/CFURLResponsePriv.h>
  33 #include <wtf/RetainPtr.h>
  34
  35 using namespace std;
  36
  37 // We would like a better value for a maximum time_t,
  38 // but there is no way to do that in C with any certainty.
  39 // INT_MAX should work well enough for our purposes.
  40 #define MAX_TIME_T ((time_t)INT_MAX)
  41
  42 namespace WebCore {
  43
  44 CFURLResponseRef ResourceResponse::cfURLResponse() const
  45 {
  46     return m_cfResponse.get();
  47 }
  48
  49 static inline bool filenameHasSaneExtension(const String& filename)
  50 {
  51     int dot = filename.find('.');
  52
  53     // The dot can't be the first or last character in the filename.
  54     int length = filename.length();
  55     return dot > 0 && dot < length - 1;
  56 }
  57
  58 static time_t toTimeT(CFAbsoluteTime time)
  59 {
  60     static const double maxTimeAsDouble = std::numeric_limits<time_t>::max();
  61     static const double minTimeAsDouble = std::numeric_limits<time_t>::min();
  62     return min(max(minTimeAsDouble, time + kCFAbsoluteTimeIntervalSince1970), maxTimeAsDouble);
  63 }
  64
  65 void ResourceResponse::platformLazyInit()
  66 {
  67     if (m_isUpToDate)
  68         return;
  69     m_isUpToDate = true;
  70
  71     if (m_isNull) {
  72         ASSERT(!m_cfResponse.get());
  73         return;
  74     }
  75
  76     // FIXME: We may need to do MIME type sniffing here (unless that is done in CFURLResponseGetMIMEType).
  77
  78     m_url = CFURLResponseGetURL(m_cfResponse.get());
  79     m_mimeType = CFURLResponseGetMIMEType(m_cfResponse.get());
  80     m_expectedContentLength = CFURLResponseGetExpectedContentLength(m_cfResponse.get());
  81     m_textEncodingName = CFURLResponseGetTextEncodingName(m_cfResponse.get());
  82
  83     m_expirationDate = toTimeT(CFURLResponseGetExpirationTime(m_cfResponse.get()));
  84     m_lastModifiedDate = toTimeT(CFURLResponseGetLastModifiedDate(m_cfResponse.get()));
  85
  86     RetainPtr<CFStringRef> suggestedFilename(AdoptCF, CFURLResponseCopySuggestedFilename(m_cfResponse.get()));
  87     m_suggestedFilename = suggestedFilename.get();
  88
  89     CFHTTPMessageRef httpResponse = CFURLResponseGetHTTPResponse(m_cfResponse.get());
  90     if (httpResponse) {
  91         m_httpStatusCode = CFHTTPMessageGetResponseStatusCode(httpResponse);
  92
  93         RetainPtr<CFStringRef> statusLine(AdoptCF, CFHTTPMessageCopyResponseStatusLine(httpResponse));
  94         String statusText(statusLine.get());
  95         int spacePos = statusText.find(" ");
  96         if (spacePos != -1)
  97             statusText = statusText.substring(spacePos + 1);
  98         m_httpStatusText = statusText;
  99
 100         RetainPtr<CFDictionaryRef> headers(AdoptCF, CFHTTPMessageCopyAllHeaderFields(httpResponse));
 101         CFIndex headerCount = CFDictionaryGetCount(headers.get());
 102         Vector<const void*, 128> keys(headerCount);
 103         Vector<const void*, 128> values(headerCount);
 104         CFDictionaryGetKeysAndValues(headers.get(), keys.data(), values.data());
 105         for (int i = 0; i < headerCount; ++i)
 106             m_httpHeaderFields.set((CFStringRef)keys[i], (CFStringRef)values[i]);
 107     } else
 108         m_httpStatusCode = 0;
 109 }
 110
 111 bool ResourceResponse::platformCompare(const ResourceResponse& a, const ResourceResponse& b)
 112 {
 113     return CFEqual(a.cfURLResponse(), b.cfURLResponse());
 114 }
 115
 116
 117 }