1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Pimf |
4
|
|
|
* |
5
|
|
|
* @copyright Copyright (c) Gjero Krsteski (http://krsteski.de) |
6
|
|
|
* @license http://opensource.org/licenses/MIT MIT |
7
|
|
|
*/ |
8
|
|
|
namespace Pimf; |
9
|
|
|
|
10
|
|
|
use \Pimf\Util\Header, Pimf\Util\Json as UtilJson; |
11
|
|
|
|
12
|
|
|
/** |
13
|
|
|
* Provides a simple interface around the HTTP an HTTPCache-friendly response generating. |
14
|
|
|
* Use this class to build and the current HTTP response before it is returned to the client. |
15
|
|
|
* |
16
|
|
|
* @package Pimf |
17
|
|
|
* @author Gjero Krsteski <[email protected]> |
18
|
|
|
*/ |
19
|
|
|
class Response |
20
|
|
|
{ |
21
|
|
|
/** |
22
|
|
|
* The request method send by the client-browser. |
23
|
|
|
* |
24
|
|
|
* @var string |
25
|
|
|
*/ |
26
|
|
|
protected $requestMethod = null; |
27
|
|
|
|
28
|
|
|
/** |
29
|
|
|
* If the response attempts to send any cached headers. |
30
|
|
|
* |
31
|
|
|
* @var bool |
32
|
|
|
*/ |
33
|
|
|
protected static $cached = false; |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* Type of the data will be send to the client-browser. |
37
|
|
|
* |
38
|
|
|
* @var string |
39
|
|
|
*/ |
40
|
|
|
protected static $typed = null; |
41
|
|
|
|
42
|
|
|
/** |
43
|
|
|
* @param string $requestMethod |
44
|
|
|
* |
45
|
|
|
* @throws \RuntimeException |
46
|
|
|
*/ |
47
|
|
|
public function __construct($requestMethod) |
48
|
|
|
{ |
49
|
|
|
$this->requestMethod = '' . strtoupper($requestMethod); |
50
|
|
|
} |
51
|
|
|
|
52
|
|
|
public function asJSON() |
53
|
|
|
{ |
54
|
|
|
self::$typed = __FUNCTION__; |
55
|
|
|
Header::asJSON(); |
56
|
|
|
|
57
|
|
|
return $this; |
58
|
|
|
} |
59
|
|
|
|
60
|
|
|
public function asHTML() |
61
|
|
|
{ |
62
|
|
|
self::$typed = __FUNCTION__; |
63
|
|
|
Header::asTextHTML(); |
64
|
|
|
|
65
|
|
|
return $this; |
66
|
|
|
} |
67
|
|
|
|
68
|
|
|
public function asPDF() |
69
|
|
|
{ |
70
|
|
|
self::$typed = __FUNCTION__; |
71
|
|
|
Header::asPDF(); |
72
|
|
|
|
73
|
|
|
return $this; |
74
|
|
|
} |
75
|
|
|
|
76
|
|
|
public function asCSV() |
77
|
|
|
{ |
78
|
|
|
self::$typed = __FUNCTION__; |
79
|
|
|
Header::asCSV(); |
80
|
|
|
|
81
|
|
|
return $this; |
82
|
|
|
} |
83
|
|
|
|
84
|
|
|
public function asTEXT() |
85
|
|
|
{ |
86
|
|
|
self::$typed = __FUNCTION__; |
87
|
|
|
Header::asTextPlain(); |
88
|
|
|
|
89
|
|
|
return $this; |
90
|
|
|
} |
91
|
|
|
|
92
|
|
|
public function asZIP() |
93
|
|
|
{ |
94
|
|
|
self::$typed = __FUNCTION__; |
95
|
|
|
Header::asZIP(); |
96
|
|
|
|
97
|
|
|
return $this; |
98
|
|
|
} |
99
|
|
|
|
100
|
|
|
public function asXZIP() |
101
|
|
|
{ |
102
|
|
|
self::$typed = __FUNCTION__; |
103
|
|
|
Header::asXZIP(); |
104
|
|
|
|
105
|
|
|
return $this; |
106
|
|
|
} |
107
|
|
|
|
108
|
|
|
public function asMSWord() |
109
|
|
|
{ |
110
|
|
|
self::$typed = __FUNCTION__; |
111
|
|
|
Header::asMSWord(); |
112
|
|
|
|
113
|
|
|
return $this; |
114
|
|
|
} |
115
|
|
|
|
116
|
|
|
/** |
117
|
|
|
* Sends a download dialog to the browser. |
118
|
|
|
* |
119
|
|
|
* @param string $stream Can be a file-path or a string. |
120
|
|
|
* @param string $name Name of the stream/file should be shown. |
121
|
|
|
* @param boolean $exit Optional for testing |
122
|
|
|
*/ |
123
|
|
|
public function sendStream($stream, $name, $exit = true) |
124
|
|
|
{ |
125
|
|
|
Header::sendDownloadDialog($stream, $name, $exit); |
126
|
|
|
} |
127
|
|
|
|
128
|
|
|
/** |
129
|
|
|
* @param mixed $data |
130
|
|
|
* @param bool $exit |
131
|
|
|
*/ |
132
|
|
|
public function send($data, $exit = true) |
133
|
|
|
{ |
134
|
|
|
$body = $data; |
135
|
|
|
|
136
|
|
|
if (self::$typed === 'asJSON') { |
137
|
|
|
$body = UtilJson::encode($data); |
138
|
|
|
} elseif ($data instanceof \Pimf\View) { |
139
|
|
|
$body = $data->render(); |
140
|
|
|
} |
141
|
|
|
|
142
|
|
|
echo '' . $body; |
143
|
|
|
if ($exit) { |
144
|
|
|
exit(0); |
145
|
|
|
} |
146
|
|
|
} |
147
|
|
|
|
148
|
|
|
/** |
149
|
|
|
* If instead you have a page that has personalization on it |
150
|
|
|
* (say, for example, the splash page contains local news as well), |
151
|
|
|
* you can set a copy to be cached only by the browser. |
152
|
|
|
* |
153
|
|
|
* @param int $seconds Interval in seconds |
154
|
|
|
* |
155
|
|
|
* @return $this |
156
|
|
|
*/ |
157
|
|
|
public function cacheBrowser($seconds) |
158
|
|
|
{ |
159
|
|
|
self::preventMultipleCaching(); |
160
|
|
|
self::$cached = true; |
161
|
|
|
Header::cacheBrowser($seconds); |
162
|
|
|
|
163
|
|
|
return $this; |
164
|
|
|
} |
165
|
|
|
|
166
|
|
|
/** |
167
|
|
|
* If you want to try as hard as possible to keep a page from being cached anywhere. |
168
|
|
|
* |
169
|
|
|
* @return $this |
170
|
|
|
*/ |
171
|
|
|
public function cacheNone() |
172
|
|
|
{ |
173
|
|
|
self::preventMultipleCaching(); |
174
|
|
|
self::$cached = true; |
175
|
|
|
Header::cacheNone(); |
176
|
|
|
|
177
|
|
|
return $this; |
178
|
|
|
} |
179
|
|
|
|
180
|
|
|
/** |
181
|
|
|
* If you want to allow a page to be cached by shared proxies for one minute. |
182
|
|
|
* |
183
|
|
|
* @param int $seconds Interval in seconds |
184
|
|
|
* |
185
|
|
|
* @return $this |
186
|
|
|
*/ |
187
|
|
|
public function cacheNoValidate($seconds = 60) |
188
|
|
|
{ |
189
|
|
|
self::preventMultipleCaching(); |
190
|
|
|
self::$cached = true; |
191
|
|
|
Header::cacheNoValidate($seconds); |
192
|
|
|
|
193
|
|
|
return $this; |
194
|
|
|
} |
195
|
|
|
|
196
|
|
|
/** |
197
|
|
|
* Handles setting pages that are always to be revalidated for freshness by any cache. |
198
|
|
|
* |
199
|
|
|
* @param int $last_modified Timestamp in seconds |
200
|
|
|
* |
201
|
|
|
* @return $this |
202
|
|
|
*/ |
203
|
|
|
public function exitIfNotModifiedSince($last_modified) |
204
|
|
|
{ |
205
|
|
|
self::preventMultipleCaching(); |
206
|
|
|
self::$cached = true; |
207
|
|
|
Header::exitIfNotModifiedSince($last_modified); |
208
|
|
|
|
209
|
|
|
return $this; |
210
|
|
|
} |
211
|
|
|
|
212
|
|
|
/** |
213
|
|
|
* @throws \RuntimeException |
214
|
|
|
*/ |
215
|
|
|
private function preventMultipleCaching() |
216
|
|
|
{ |
217
|
|
|
if ($this->requestMethod != 'GET') { |
218
|
|
|
throw new \RuntimeException('HTTP cache headers can only take effect if request was sent via GET method!'); |
219
|
|
|
} |
220
|
|
|
|
221
|
|
|
if (self::$cached === true) { |
222
|
|
|
throw new \RuntimeException('only one HTTP cache-control can be sent!'); |
223
|
|
|
} |
224
|
|
|
} |
225
|
|
|
} |
226
|
|
|
|