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tdeio/httpfilter

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httpfilter.h
1/*
2 This file is part of the KDE libraries
3 Copyright (c) 2002 Waldo Bastian <bastian@kde.org>
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License version 2 as published by the Free Software Foundation.
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 _HTTPFILTER_H_
21#define _HTTPFILTER_H_
22
23#include <config.h>
24
25#ifdef HAVE_LIBZ
26#define DO_GZIP
27#endif
28
29#ifdef DO_GZIP
30#include <zlib.h>
31#endif
32
33#include <tqobject.h>
34#include <kmdcodec.h>
35
36class HTTPFilterBase : public TQObject
37{
38 TQ_OBJECT
39public:
40 HTTPFilterBase();
41 ~HTTPFilterBase();
42
43 void chain(HTTPFilterBase *previous);
44
45public slots:
46 virtual void slotInput(const TQByteArray &d) = 0;
47
48signals:
49 void output(const TQByteArray &d);
50 void error(int, const TQString &);
51
52protected:
53 HTTPFilterBase *last;
54};
55
56class HTTPFilterChain : public HTTPFilterBase
57{
58 TQ_OBJECT
59public:
60 HTTPFilterChain();
61
62 void addFilter(HTTPFilterBase *filter);
63
64public slots:
65 void slotInput(const TQByteArray &d);
66
67private:
68 HTTPFilterBase *first;
69};
70
71class HTTPFilterMD5 : public HTTPFilterBase
72{
73 TQ_OBJECT
74public:
75 HTTPFilterMD5();
76
77 TQString md5();
78
79public slots:
80 void slotInput(const TQByteArray &d);
81
82private:
83 KMD5 context;
84};
85
86
87class HTTPFilterGZip : public HTTPFilterBase
88{
89 TQ_OBJECT
90public:
91 HTTPFilterGZip();
92 ~HTTPFilterGZip();
93
94public slots:
95 void slotInput(const TQByteArray &d);
96
97protected:
98 int get_byte();
99 int checkHeader();
100#ifdef DO_GZIP
101 z_stream zstr;
102 bool bEof : 1;
103 bool bHasHeader : 1;
104 bool bHasFinished : 1;
105 bool bPlainText : 1;
106 bool bEatTrailer : 1;
107 TQByteArray headerData;
108 int iTrailer;
109#endif
110};
111
112class HTTPFilterDeflate : public HTTPFilterGZip
113{
114 TQ_OBJECT
115public:
116 HTTPFilterDeflate();
117};
118
119#endif

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