1/*
2    Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
3
4    This library is free software; you can redistribute it and/or
5    modify it under the terms of the GNU Library General Public
6    License as published by the Free Software Foundation; either
7    version 2 of the License, or (at your option) any later version.
8
9    This library is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12    Library General Public License for more details.
13
14    You should have received a copy of the GNU Library General Public License
15    along with this library; see the file COPYING.LIB.  If not, write to
16    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17    Boston, MA 02110-1301, USA.
18*/
19
20#ifndef MIMESniffing_h
21#define MIMESniffing_h
22
23#include <stddef.h>
24
25// MIME type sniffing implementation based on http://tools.ietf.org/html/draft-abarth-mime-sniff-06
26
27class MIMESniffer {
28public:
29    MIMESniffer(const char* advertisedMIMEType, bool isSupportedImageType);
30
31    size_t dataSize() const { return m_dataSize; }
32    const char* sniff(const char* data, size_t size) const { return m_function ?  m_function(data, size) : 0; }
33    bool isValid() const { return m_dataSize > 0; }
34
35private:
36    typedef const char* (*SniffFunction)(const char*, size_t);
37    size_t m_dataSize;
38    SniffFunction m_function;
39};
40
41#endif // MIMESniffing_h
42