1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Copyright 2016 - 2018, Cake Development Corporation (http://cakedc.com) |
4
|
|
|
* |
5
|
|
|
* Licensed under The MIT License |
6
|
|
|
* Redistributions of files must retain the above copyright notice. |
7
|
|
|
* |
8
|
|
|
* @copyright Copyright 2016 - 2018, Cake Development Corporation (http://cakedc.com) |
9
|
|
|
* @license MIT License (http://www.opensource.org/licenses/mit-license.php) |
10
|
|
|
*/ |
11
|
|
|
|
12
|
|
|
namespace CakeDC\Api\Service\Renderer; |
13
|
|
|
|
14
|
|
|
use CakeDC\Api\Exception\ValidationException; |
15
|
|
|
use CakeDC\Api\Service\Action\Result; |
16
|
|
|
use Cake\Core\Configure; |
17
|
|
|
use Cake\Utility\Hash; |
18
|
|
|
use Exception; |
19
|
|
|
use stdClass; |
20
|
|
|
|
21
|
|
|
/** |
22
|
|
|
* Class JSendRenderer |
23
|
|
|
* JSend content negotiation Renderer. |
24
|
|
|
* |
25
|
|
|
* @package CakeDC\Api\Service\Renderer |
26
|
|
|
*/ |
27
|
|
|
class JSendRenderer extends BaseRenderer |
28
|
|
|
{ |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* Success status. |
32
|
|
|
*/ |
33
|
|
|
const STATUS_SUCCESS = 'success'; |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* Fail status. |
37
|
|
|
*/ |
38
|
|
|
const STATUS_FAIL = 'fail'; |
39
|
|
|
|
40
|
|
|
/** |
41
|
|
|
* Error status. |
42
|
|
|
*/ |
43
|
|
|
const STATUS_ERROR = 'error'; |
44
|
|
|
|
45
|
|
|
/** |
46
|
|
|
* Response status. |
47
|
|
|
*/ |
48
|
|
|
public $status = self::STATUS_SUCCESS; |
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* HTTP error code. |
52
|
|
|
*/ |
53
|
|
|
public $errorCode = 200; |
54
|
|
|
|
55
|
|
|
/** |
56
|
|
|
* Confirms if the specified content type is acceptable for the response. |
57
|
|
|
* |
58
|
|
|
* @return bool |
59
|
|
|
*/ |
60
|
|
|
public function accept() |
61
|
|
|
{ |
62
|
|
|
$request = $this->_service->getRequest(); |
63
|
|
|
|
64
|
|
|
return ($request->accepts('application/json') || $request->accepts('text/json') || $request->accepts('text/javascript')); |
65
|
|
|
} |
66
|
|
|
|
67
|
|
|
/** |
68
|
|
|
* Builds the HTTP response. |
69
|
|
|
* |
70
|
|
|
* @param Result $result The result object returned by the Service. |
71
|
|
|
* @return bool |
72
|
|
|
*/ |
73
|
53 |
|
public function response(Result $result = null) |
74
|
|
|
{ |
75
|
53 |
|
$response = $this->_service->getResponse(); |
76
|
|
|
|
77
|
53 |
|
$data = $result->getData(); |
|
|
|
|
78
|
53 |
|
$payload = $result->getPayload(); |
79
|
|
|
$return = [ |
80
|
|
|
'data' => $data |
81
|
53 |
|
]; |
82
|
53 |
|
if (is_array($payload)) { |
83
|
53 |
|
$return = Hash::merge($return, $payload); |
84
|
53 |
|
} |
85
|
53 |
|
$this->_mapStatus($result); |
|
|
|
|
86
|
|
|
|
87
|
53 |
|
$this->_service->setResponse($response->withStringBody($this->_format($this->status, $return))->withStatus($result->getCode())->withType('application/json')); |
88
|
|
|
|
89
|
53 |
|
return true; |
90
|
|
|
} |
91
|
|
|
|
92
|
|
|
/** |
93
|
|
|
* Processes an exception thrown while processing the request. |
94
|
|
|
* |
95
|
|
|
* @param Exception $exception The exception object. |
96
|
|
|
* @return void |
97
|
|
|
*/ |
98
|
9 |
|
public function error(Exception $exception) |
99
|
|
|
{ |
100
|
9 |
|
$response = $this->_service->getResponse(); |
101
|
9 |
|
if ($exception instanceof ValidationException) { |
102
|
1 |
|
$data = $exception->getValidationErrors(); |
103
|
1 |
|
} else { |
104
|
8 |
|
$data = null; |
105
|
|
|
} |
106
|
9 |
|
$message = $this->_buildMessage($exception); |
107
|
9 |
|
$trace = $this->_stackTrace($exception); |
108
|
9 |
|
$this->_service->setResponse($response->withStringBody($this->_error($message, $exception->getCode(), $data, $trace))->withStatus((int)$this->errorCode)->withType('application/json')); |
109
|
9 |
|
} |
110
|
|
|
|
111
|
|
|
/** |
112
|
|
|
* Formats a response to JSend specification. |
113
|
|
|
* |
114
|
|
|
* @param string $status The status of the response. |
115
|
|
|
* @param array $response The response properties. |
116
|
|
|
* @return string |
117
|
|
|
*/ |
118
|
58 |
|
protected function _format($status, $response = []) |
119
|
|
|
{ |
120
|
58 |
|
$object = new stdClass(); |
121
|
58 |
|
$object->status = $status; |
122
|
58 |
|
foreach ($response as $param => $value) { |
123
|
58 |
|
$object->{$param} = $value; |
124
|
58 |
|
} |
125
|
58 |
|
$format = Configure::read('debug') ? JSON_PRETTY_PRINT : 0; |
126
|
|
|
|
127
|
58 |
|
return json_encode($object, $format); |
128
|
|
|
} |
129
|
|
|
|
130
|
|
|
/** |
131
|
|
|
* Creates a successful response. |
132
|
|
|
* |
133
|
|
|
* @param array $data The response data object. |
134
|
|
|
* @return string |
135
|
|
|
*/ |
136
|
|
|
protected function _success($data = null) |
137
|
|
|
{ |
138
|
|
|
return $this->_format(self::STATUS_SUCCESS, ['data' => $data]); |
139
|
|
|
} |
140
|
|
|
|
141
|
|
|
/** |
142
|
|
|
* Creates a failure response. |
143
|
|
|
* |
144
|
|
|
* @param array $data The response data object. |
145
|
|
|
* @return string |
146
|
|
|
*/ |
147
|
|
|
protected function _fail($data = null) |
148
|
|
|
{ |
149
|
|
|
return $this->_format(self::STATUS_FAIL, ['data' => $data]); |
150
|
|
|
} |
151
|
|
|
|
152
|
|
|
/** |
153
|
|
|
* Creates an error response. |
154
|
|
|
* |
155
|
|
|
* @param string $message The error message. |
156
|
|
|
* @param int $code The error code. |
157
|
|
|
* @param array $data The response data object. |
158
|
|
|
* @param array $trace The exception trace |
159
|
|
|
* @return string |
160
|
|
|
*/ |
161
|
9 |
|
protected function _error($message = 'Unknown error', $code = 0, $data = null, $trace = null) |
162
|
|
|
{ |
163
|
|
|
$response = [ |
164
|
9 |
|
'message' => $message, |
165
|
9 |
|
'code' => $code, |
166
|
|
|
'data' => $data |
167
|
9 |
|
]; |
168
|
9 |
|
if (Configure::read('debug') > 0) { |
169
|
8 |
|
$response['trace'] = $trace; |
170
|
8 |
|
} |
171
|
|
|
|
172
|
9 |
|
return $this->_format(self::STATUS_ERROR, $response); |
173
|
|
|
} |
174
|
|
|
|
175
|
|
|
/** |
176
|
|
|
* Update status based on result code |
177
|
|
|
* |
178
|
|
|
* @param Result $result A result object instance. |
179
|
|
|
* @return void |
180
|
|
|
*/ |
181
|
53 |
|
protected function _mapStatus(Result $result) |
182
|
|
|
{ |
183
|
53 |
|
$code = (int)$result->getCode(); |
184
|
53 |
|
if ($code == 0 || $code >= 200 && $code <= 399) { |
185
|
53 |
|
$this->status = self::STATUS_SUCCESS; |
186
|
53 |
|
} else { |
187
|
|
|
$this->status = self::STATUS_ERROR; |
188
|
|
|
} |
189
|
53 |
|
} |
190
|
|
|
} |
191
|
|
|
|
If a variable is not always an object, we recommend to add an additional type check to ensure your method call is safe: