1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_BASE_HTTPBASE_H__
#define TALK_BASE_HTTPBASE_H__
#include "talk/base/httpcommon.h"
namespace talk_base {
class StreamInterface;
//////////////////////////////////////////////////////////////////////
// HttpParser
//////////////////////////////////////////////////////////////////////
class HttpParser {
public:
HttpParser();
virtual ~HttpParser();
void reset();
bool process(const char* buffer, size_t len, size_t& read, HttpError& err);
void end_of_input();
void complete(HttpError err);
protected:
bool process_line(const char* line, size_t len, HttpError& err);
// HttpParser Interface
virtual HttpError onHttpRecvLeader(const char* line, size_t len) = 0;
virtual HttpError onHttpRecvHeader(const char* name, size_t nlen,
const char* value, size_t vlen) = 0;
virtual HttpError onHttpRecvHeaderComplete(bool chunked, size_t& data_size) = 0;
virtual HttpError onHttpRecvData(const char* data, size_t len, size_t& read) = 0;
virtual void onHttpRecvComplete(HttpError err) = 0;
private:
enum State {
ST_LEADER, ST_HEADERS,
ST_CHUNKSIZE, ST_CHUNKTERM, ST_TRAILERS,
ST_DATA, ST_COMPLETE
} state_;
bool chunked_;
size_t data_size_;
};
//////////////////////////////////////////////////////////////////////
// IHttpNotify
//////////////////////////////////////////////////////////////////////
enum HttpMode { HM_NONE, HM_CONNECT, HM_RECV, HM_SEND };
class IHttpNotify {
public:
virtual HttpError onHttpHeaderComplete(bool chunked, size_t& data_size) = 0;
virtual void onHttpComplete(HttpMode mode, HttpError err) = 0;
virtual void onHttpClosed(HttpError err) = 0;
};
//////////////////////////////////////////////////////////////////////
// HttpBase
//////////////////////////////////////////////////////////////////////
class HttpBase : private HttpParser, public sigslot::has_slots<> {
public:
HttpBase();
virtual ~HttpBase();
void notify(IHttpNotify* notify) { notify_ = notify; }
bool attach(StreamInterface* stream);
StreamInterface* stream() { return stream_; }
StreamInterface* detach();
bool isConnected() const;
void send(HttpData* data);
void recv(HttpData* data);
void abort(HttpError err);
HttpMode mode() const { return mode_; }
void set_ignore_data(bool ignore) { ignore_data_ = ignore; }
bool ignore_data() const { return ignore_data_; }
protected:
void flush_data();
void queue_headers();
void do_complete(HttpError err = HE_NONE);
void OnEvent(StreamInterface* stream, int events, int error);
// HttpParser Interface
virtual HttpError onHttpRecvLeader(const char* line, size_t len);
virtual HttpError onHttpRecvHeader(const char* name, size_t nlen,
const char* value, size_t vlen);
virtual HttpError onHttpRecvHeaderComplete(bool chunked, size_t& data_size);
virtual HttpError onHttpRecvData(const char* data, size_t len, size_t& read);
virtual void onHttpRecvComplete(HttpError err);
private:
enum { kBufferSize = 32 * 1024 };
HttpMode mode_;
HttpData* data_;
IHttpNotify* notify_;
StreamInterface* stream_;
char buffer_[kBufferSize];
size_t len_;
bool ignore_data_, chunk_data_;
HttpData::const_iterator header_;
};
//////////////////////////////////////////////////////////////////////
} // namespace talk_base
#endif // TALK_BASE_HTTPBASE_H__
|
