blob: ea1b7d43c62a9cd817d7c607fc4960c43ee5d279 (
plain)
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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
<?php
namespace JsonRPC\Request;
use Exception;
use JsonRPC\Exception\AccessDeniedException;
use JsonRPC\Exception\AuthenticationFailureException;
use JsonRPC\Exception\InvalidJsonRpcFormatException;
use JsonRPC\MiddlewareHandler;
use JsonRPC\ProcedureHandler;
use JsonRPC\Response\ResponseBuilder;
use JsonRPC\Validator\JsonFormatValidator;
use JsonRPC\Validator\RpcFormatValidator;
/**
* Class RequestParser
*
* @package JsonRPC
* @author Frederic Guillot
*/
class RequestParser
{
/**
* Request payload
*
* @access protected
* @var mixed
*/
protected $payload;
/**
* List of exceptions that should not be relayed to the client
*
* @access protected
* @var array()
*/
protected $localExceptions = array(
'JsonRPC\Exception\AuthenticationFailureException',
'JsonRPC\Exception\AccessDeniedException',
);
/**
* ProcedureHandler
*
* @access protected
* @var ProcedureHandler
*/
protected $procedureHandler;
/**
* MiddlewareHandler
*
* @access protected
* @var MiddlewareHandler
*/
protected $middlewareHandler;
/**
* Get new object instance
*
* @static
* @access public
* @return RequestParser
*/
public static function create()
{
return new static();
}
/**
* Set payload
*
* @access public
* @param mixed $payload
* @return $this
*/
public function withPayload($payload)
{
$this->payload = $payload;
return $this;
}
/**
* Exception classes that should not be relayed to the client
*
* @access public
* @param mixed $exception
* @return $this
*/
public function withLocalException($exception)
{
if (is_array($exception)) {
$this->localExceptions = array_merge($this->localExceptions, $exception);
} else {
$this->localExceptions[] = $exception;
}
return $this;
}
/**
* Set procedure handler
*
* @access public
* @param ProcedureHandler $procedureHandler
* @return $this
*/
public function withProcedureHandler(ProcedureHandler $procedureHandler)
{
$this->procedureHandler = $procedureHandler;
return $this;
}
/**
* Set middleware handler
*
* @access public
* @param MiddlewareHandler $middlewareHandler
* @return $this
*/
public function withMiddlewareHandler(MiddlewareHandler $middlewareHandler)
{
$this->middlewareHandler = $middlewareHandler;
return $this;
}
/**
* Parse incoming request
*
* @access public
* @return string
* @throws AccessDeniedException
* @throws AuthenticationFailureException
*/
public function parse()
{
try {
JsonFormatValidator::validate($this->payload);
RpcFormatValidator::validate($this->payload);
$this->middlewareHandler
->withProcedure($this->payload['method'])
->execute();
$result = $this->procedureHandler->executeProcedure(
$this->payload['method'],
empty($this->payload['params']) ? array() : $this->payload['params']
);
if (! $this->isNotification()) {
return ResponseBuilder::create()
->withId($this->payload['id'])
->withResult($result)
->build();
}
} catch (Exception $e) {
return $this->handleExceptions($e);
}
return '';
}
/**
* Handle exceptions
*
* @access protected
* @param Exception $e
* @return string
* @throws Exception
*/
protected function handleExceptions(Exception $e)
{
foreach ($this->localExceptions as $exception) {
if ($e instanceof $exception) {
throw $e;
}
}
if ($e instanceof InvalidJsonRpcFormatException || ! $this->isNotification()) {
return ResponseBuilder::create()
->withId(isset($this->payload['id']) ? $this->payload['id'] : null)
->withException($e)
->build();
}
return '';
}
/**
* Return true if the message is a notification
*
* @access protected
* @return bool
*/
protected function isNotification()
{
return is_array($this->payload) && !isset($this->payload['id']);
}
}
|
