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 "platform/ContentType.h"
30
31namespace blink {
32
33ContentType::ContentType(const String& contentType)
34    : m_type(contentType)
35{
36}
37
38String 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 != kNotFound) {
46        size_t start = strippedType.find(parameterName, semi + 1, false);
47        if (start != kNotFound) {
48            start = strippedType.find('=', start + parameterName.length());
49            if (start != kNotFound) {
50                size_t quote = strippedType.find('\"', start + 1);
51                size_t end = strippedType.find('\"', start + 2);
52                if (quote != kNotFound && end != kNotFound) {
53                    start = quote;
54                } else {
55                    end = strippedType.find(';', start + 1);
56                    if (end == kNotFound)
57                        end = strippedType.length();
58                }
59                parameterValue = strippedType.substring(start + 1, end - (start + 1)).stripWhiteSpace();
60            }
61        }
62    }
63
64    return parameterValue;
65}
66
67String 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 != kNotFound)
74        strippedType = strippedType.left(semi).stripWhiteSpace();
75
76    return strippedType;
77}
78
79Vector<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 blink
95