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      1 /*
      2  * Copyright (C) 2006, 2008 Apple Inc.  All rights reserved.
      3  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
      4  * Copyright (C) 2009 Google Inc.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "config.h"
     29 #include "core/platform/ContentType.h"
     30 
     31 namespace WebCore {
     32 
     33 ContentType::ContentType(const String& contentType)
     34     : m_type(contentType)
     35 {
     36 }
     37 
     38 String ContentType::parameter(const String& parameterName) const
     39 {
     40     String parameterValue;
     41     String strippedType = m_type.stripWhiteSpace();
     42 
     43     // a MIME type can have one or more "param=value" after a semi-colon, and separated from each other by semi-colons
     44     size_t semi = strippedType.find(';');
     45     if (semi != notFound) {
     46         size_t start = strippedType.find(parameterName, semi + 1, false);
     47         if (start != notFound) {
     48             start = strippedType.find('=', start + parameterName.length());
     49             if (start != notFound) {
     50                 size_t quote = strippedType.find('\"', start + 1);
     51                 size_t end = strippedType.find('\"', start + 2);
     52                 if (quote != notFound && end != notFound)
     53                     start = quote;
     54                 else {
     55                     end = strippedType.find(';', start + 1);
     56                     if (end == notFound)
     57                         end = strippedType.length();
     58                 }
     59                 parameterValue = strippedType.substring(start + 1, end - (start + 1)).stripWhiteSpace();
     60             }
     61         }
     62     }
     63 
     64     return parameterValue;
     65 }
     66 
     67 String ContentType::type() const
     68 {
     69     String strippedType = m_type.stripWhiteSpace();
     70 
     71     // "type" can have parameters after a semi-colon, strip them
     72     size_t semi = strippedType.find(';');
     73     if (semi != notFound)
     74         strippedType = strippedType.left(semi).stripWhiteSpace();
     75 
     76     return strippedType;
     77 }
     78 
     79 Vector<String> ContentType::codecs() const
     80 {
     81     String codecsParameter = parameter("codecs");
     82 
     83     if (codecsParameter.isEmpty())
     84         return Vector<String>();
     85 
     86     Vector<String> codecs;
     87     codecsParameter.split(",", codecs);
     88     for (size_t i = 0; i < codecs.size(); ++i)
     89         codecs[i] = codecs[i].simplifyWhiteSpace();
     90 
     91     return codecs;
     92 }
     93 
     94 } // namespace WebCore
     95