blob: b8173bf4948695c84ff4f9d8b49c74ec638bad42 (
plain) (
blame)
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
|
//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.fcgi.parser;
import java.nio.ByteBuffer;
public class EndRequestContentParser extends ContentParser
{
private final Parser.Listener listener;
private State state = State.APPLICATION;
private int cursor;
private int application;
private int protocol;
public EndRequestContentParser(HeaderParser headerParser, Parser.Listener listener)
{
super(headerParser);
this.listener = listener;
}
@Override
public Result parse(ByteBuffer buffer)
{
while (buffer.hasRemaining())
{
switch (state)
{
case APPLICATION:
{
if (buffer.remaining() >= 4)
{
application = buffer.getInt();
state = State.PROTOCOL;
}
else
{
state = State.APPLICATION_BYTES;
cursor = 0;
}
break;
}
case APPLICATION_BYTES:
{
int quarterInt = buffer.get() & 0xFF;
application = (application << 8) + quarterInt;
if (++cursor == 4)
state = State.PROTOCOL;
break;
}
case PROTOCOL:
{
protocol = buffer.get() & 0xFF;
state = State.RESERVED;
break;
}
case RESERVED:
{
if (buffer.remaining() >= 3)
{
buffer.position(buffer.position() + 3);
onEnd();
reset();
return Result.COMPLETE;
}
else
{
state = State.APPLICATION_BYTES;
cursor = 0;
break;
}
}
case RESERVED_BYTES:
{
buffer.get();
if (++cursor == 0)
{
onEnd();
reset();
return Result.COMPLETE;
}
break;
}
default:
{
throw new IllegalStateException();
}
}
}
return Result.PENDING;
}
private void onEnd()
{
if (application != 0)
listener.onFailure(getRequest(), new Exception("FastCGI application returned code " + application));
else if (protocol != 0)
listener.onFailure(getRequest(), new Exception("FastCGI server returned code " + protocol));
else
listener.onEnd(getRequest());
}
private void reset()
{
state = State.APPLICATION;
cursor = 0;
application = 0;
protocol = 0;
}
private enum State
{
APPLICATION, APPLICATION_BYTES, PROTOCOL, RESERVED, RESERVED_BYTES
}
}
|
