1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Gravatar.php |
4
|
|
|
* |
5
|
|
|
* @copyright More in license.md |
6
|
|
|
* @license http://www.ipublikuj.eu |
7
|
|
|
* @author Adam Kadlec http://www.ipublikuj.eu |
8
|
|
|
* @package iPublikuj:Gravatar! |
9
|
|
|
* @subpackage common |
10
|
|
|
* @since 1.0.0 |
11
|
|
|
* |
12
|
|
|
* @date 05.04.14 |
13
|
|
|
*/ |
14
|
|
|
|
15
|
|
|
declare(strict_types = 1); |
16
|
|
|
|
17
|
|
|
namespace IPub\Gravatar; |
18
|
|
|
|
19
|
|
|
use Nette; |
20
|
|
|
use Nette\Http; |
21
|
|
|
use Nette\Utils; |
22
|
|
|
|
23
|
|
|
use IPub; |
24
|
|
|
use IPub\Gravatar\Caching; |
25
|
|
|
use IPub\Gravatar\Exceptions; |
26
|
|
|
use IPub\Gravatar\Templating; |
27
|
|
|
|
28
|
|
|
/** |
29
|
|
|
* Gravatar service |
30
|
|
|
* |
31
|
|
|
* @package iPublikuj:Gravatar! |
32
|
|
|
* @subpackage common |
33
|
|
|
* |
34
|
|
|
* @author Adam Kadlec <[email protected]> |
35
|
|
|
*/ |
36
|
1 |
|
final class Gravatar extends \Nette\Object |
37
|
|
|
{ |
38
|
|
|
/** |
39
|
|
|
* Define class name |
40
|
|
|
*/ |
41
|
|
|
const CLASS_NAME = __CLASS__; |
42
|
|
|
|
43
|
|
|
/** |
44
|
|
|
* @var string - URL constants for the avatar images |
45
|
|
|
*/ |
46
|
|
|
const HTTP_URL = 'http://www.gravatar.com/avatar/'; |
47
|
|
|
const HTTPS_URL = 'https://secure.gravatar.com/avatar/'; |
48
|
|
|
|
49
|
|
|
/** |
50
|
|
|
* @var int |
51
|
|
|
*/ |
52
|
|
|
private $expiration = 172800; // two days |
53
|
|
|
|
54
|
|
|
/** |
55
|
|
|
* The size to use for avatars. |
56
|
|
|
* |
57
|
|
|
* @var int |
58
|
|
|
*/ |
59
|
|
|
private $size = 80; |
60
|
|
|
|
61
|
|
|
/** |
62
|
|
|
* The default image to use |
63
|
|
|
* Either a string of the gravatar-recognized default image "type" to use, a URL, or FALSE if using the...default gravatar default image (hah) |
64
|
|
|
* |
65
|
|
|
* @var mixed |
66
|
|
|
*/ |
67
|
|
|
private $defaultImage = FALSE; |
68
|
|
|
|
69
|
|
|
/** |
70
|
|
|
* The maximum rating to allow for the avatar. |
71
|
|
|
* |
72
|
|
|
* @var string |
73
|
|
|
*/ |
74
|
|
|
private $maxRating = 'g'; |
75
|
|
|
|
76
|
|
|
/** |
77
|
|
|
* Should we use the secure (HTTPS) URL base? |
78
|
|
|
* |
79
|
|
|
* @var bool |
80
|
|
|
*/ |
81
|
|
|
private $useSecureUrl = FALSE; |
82
|
|
|
|
83
|
|
|
/** |
84
|
|
|
* @var Utils\Image |
85
|
|
|
*/ |
86
|
|
|
private $image; |
87
|
|
|
|
88
|
|
|
/** |
89
|
|
|
* @var string |
90
|
|
|
*/ |
91
|
|
|
private $type; |
92
|
|
|
|
93
|
|
|
/** |
94
|
|
|
* @var bool |
95
|
|
|
*/ |
96
|
|
|
private $hashEmail = TRUE; |
97
|
|
|
|
98
|
|
|
/** |
99
|
|
|
* @var Caching\Cache |
100
|
|
|
*/ |
101
|
|
|
private $cache; |
102
|
|
|
|
103
|
|
|
/** |
104
|
|
|
* @param Http\Request $httpRequest |
105
|
|
|
* @param Caching\Cache $cache |
106
|
|
|
*/ |
107
|
|
|
public function __construct( |
108
|
|
|
Http\Request $httpRequest, |
109
|
|
|
Caching\Cache $cache |
110
|
|
|
) { |
111
|
1 |
|
$this->useSecureUrl = $httpRequest->isSecured(); |
112
|
|
|
|
113
|
|
|
// Init cache |
114
|
1 |
|
$this->cache = $cache; |
115
|
1 |
|
} |
116
|
|
|
|
117
|
|
|
/** |
118
|
|
|
* Get the email hash to use (after cleaning the string) |
119
|
|
|
* |
120
|
|
|
* @param string|NULL $email |
121
|
|
|
* |
122
|
|
|
* @return string - The hashed form of the email, post cleaning |
123
|
|
|
*/ |
124
|
|
|
public function getEmailHash(string $email = NULL) : string |
125
|
|
|
{ |
126
|
|
|
// Tack the email hash onto the end. |
127
|
1 |
|
if ($this->hashEmail === TRUE && $email !== NULL) { |
128
|
|
|
// Using md5 as per gravatar docs |
129
|
1 |
|
return hash('md5', strtolower(trim($email))); |
130
|
|
|
|
131
|
|
|
} elseif ($email !== NULL) { |
132
|
|
|
return $email; |
133
|
|
|
|
134
|
|
|
} else { |
135
|
|
|
return str_repeat('0', 32); |
136
|
|
|
} |
137
|
|
|
} |
138
|
|
|
|
139
|
|
|
/** |
140
|
|
|
* Set the avatar size to use |
141
|
|
|
* |
142
|
|
|
* @param int $size - The avatar size to use, must be less than 512 and greater than 0. |
143
|
|
|
*/ |
144
|
|
|
public function setSize(int $size) |
145
|
|
|
{ |
146
|
|
|
if ($this->isSizeValid($size)) { |
147
|
|
|
$this->size = $size; |
148
|
1 |
|
} |
149
|
|
|
} |
150
|
|
|
|
151
|
|
|
/** |
152
|
1 |
|
* Get the currently set avatar size |
153
|
1 |
|
* |
154
|
|
|
* @return int |
155
|
|
|
*/ |
156
|
|
|
public function getSize() : int |
157
|
|
|
{ |
158
|
|
|
return $this->size; |
159
|
|
|
} |
160
|
|
|
|
161
|
|
|
/** |
162
|
|
|
* @param int $size |
163
|
|
|
* |
164
|
1 |
|
* @return bool |
165
|
|
|
* |
166
|
|
|
* @throws Exceptions\InvalidArgumentException |
167
|
|
|
*/ |
168
|
1 |
|
public function isSizeValid(int $size) : bool |
169
|
|
|
{ |
170
|
|
|
if ($size > 512 || $size < 0) { |
171
|
|
|
throw new Exceptions\InvalidArgumentException('Size must be within 0 pixels and 512 pixels'); |
172
|
|
|
} |
173
|
|
|
|
174
|
|
|
return TRUE; |
175
|
|
|
} |
176
|
|
|
|
177
|
|
|
/** |
178
|
1 |
|
* Set image cache expiration |
179
|
1 |
|
* |
180
|
|
|
* @param int $expiration |
181
|
|
|
*/ |
182
|
|
|
public function setExpiration(int $expiration) |
183
|
|
|
{ |
184
|
|
|
$this->expiration = $expiration; |
185
|
|
|
} |
186
|
|
|
|
187
|
|
|
/** |
188
|
|
|
* Set the default image to use for avatars |
189
|
|
|
* |
190
|
|
|
* @param mixed $image - The default image to use. Use boolean FALSE for the gravatar default, a string containing a valid image URL, or a string specifying a recognized gravatar "default". |
191
|
1 |
|
* |
192
|
|
|
* @throws Exceptions\InvalidArgumentException |
193
|
|
|
*/ |
194
|
|
|
public function setDefaultImage($image) |
195
|
|
|
{ |
196
|
|
|
// Quick check against boolean FALSE. |
197
|
1 |
|
if ($image === FALSE) { |
198
|
|
|
$this->defaultImage = FALSE; |
199
|
1 |
|
|
200
|
1 |
|
} else { |
201
|
|
|
// Check $image against recognized gravatar "defaults" |
202
|
|
|
// and if it doesn't match any of those we need to see if it is a valid URL. |
203
|
|
|
$_image = strtolower($image); |
204
|
|
|
|
205
|
|
|
if (in_array($_image, ['404', 'mm', 'identicon', 'monsterid', 'wavatar', 'retro'])) { |
206
|
|
|
$this->defaultImage = $_image; |
207
|
|
|
|
208
|
|
|
} else { |
209
|
|
|
if (filter_var($image, FILTER_VALIDATE_URL)) { |
210
|
|
|
$this->defaultImage = rawurlencode($image); |
211
|
1 |
|
|
212
|
|
|
} else { |
213
|
|
|
throw new Exceptions\InvalidArgumentException('The default image is not a valid gravatar "default" and is not a valid URL'); |
214
|
|
|
} |
215
|
|
|
} |
216
|
|
|
} |
217
|
|
|
} |
218
|
|
|
|
219
|
|
|
/** |
220
|
|
|
* Get the current default image setting |
221
|
|
|
* |
222
|
1 |
|
* @param string|NULL $defaultImage |
223
|
1 |
|
* |
224
|
|
|
* @return mixed - False if no default image set, string if one is set |
225
|
|
|
*/ |
226
|
1 |
|
public function getDefaultImage(string $defaultImage = NULL) |
227
|
|
|
{ |
228
|
|
|
if ($defaultImage !== NULL && in_array($defaultImage, ['404', 'mm', 'identicon', 'monsterid', 'wavatar', 'retro'])) { |
229
|
|
|
return $defaultImage; |
230
|
1 |
|
} |
231
|
|
|
|
232
|
|
|
if (filter_var($defaultImage, FILTER_VALIDATE_URL)) { |
233
|
|
|
return rawurldecode($defaultImage); |
234
|
|
|
} |
235
|
|
|
|
236
|
|
|
return $this->defaultImage; |
237
|
|
|
} |
238
|
|
|
|
239
|
|
|
/** |
240
|
|
|
* Set the maximum allowed rating for avatars. |
241
|
|
|
* |
242
|
1 |
|
* @param string $rating - The maximum rating to use for avatars ('g', 'pg', 'r', 'x'). |
243
|
|
|
* |
244
|
1 |
|
* @throws Exceptions\InvalidArgumentException |
245
|
|
|
*/ |
246
|
|
|
public function setMaxRating(string $rating) |
247
|
|
|
{ |
248
|
1 |
|
$rating = strtolower($rating); |
249
|
1 |
|
|
250
|
|
|
if (!in_array($rating, ['g', 'pg', 'r', 'x'])) { |
251
|
|
|
throw new Exceptions\InvalidArgumentException(sprintf('Invalid rating "%s" specified, only "g", "pg", "r", or "x" are allowed to be used.', $rating)); |
252
|
|
|
} |
253
|
|
|
|
254
|
|
|
$this->maxRating = $rating; |
255
|
|
|
} |
256
|
|
|
|
257
|
|
|
/** |
258
|
|
|
* Get the current maximum allowed rating for avatars |
259
|
|
|
* |
260
|
1 |
|
* @param string|NULL $maxRating |
261
|
|
|
* |
262
|
|
|
* @return string - The string representing the current maximum allowed rating ('g', 'pg', 'r', 'x'). |
263
|
|
|
*/ |
264
|
1 |
|
public function getMaxRating(string $maxRating = NULL) : string |
265
|
|
|
{ |
266
|
|
|
if ($maxRating !== NULL && in_array($maxRating, ['g', 'pg', 'r', 'x'])) { |
267
|
|
|
return $maxRating; |
268
|
|
|
} |
269
|
|
|
|
270
|
|
|
return $this->maxRating; |
271
|
|
|
} |
272
|
|
|
|
273
|
|
|
/** |
274
|
|
|
* Returns the Nette\Image instance |
275
|
|
|
* |
276
|
|
|
* @return Utils\Image |
277
|
|
|
*/ |
278
|
|
|
public function getImage() : Utils\Image |
279
|
|
|
{ |
280
|
|
|
return $this->image; |
281
|
|
|
} |
282
|
|
|
|
283
|
|
|
/** |
284
|
|
|
* Returns the type of a image |
285
|
|
|
* |
286
|
|
|
* @return string |
287
|
|
|
*/ |
288
|
|
|
public function getImageType() : string |
289
|
|
|
{ |
290
|
|
|
return $this->type; |
291
|
|
|
} |
292
|
|
|
|
293
|
|
|
/** |
294
|
|
|
* Check if we are using the secure protocol for the image URLs |
295
|
|
|
* |
296
|
|
|
* @return bool - Are we supposed to use the secure protocol? |
297
|
|
|
*/ |
298
|
|
|
public function usingSecureImages() : bool |
299
|
|
|
{ |
300
|
|
|
return $this->useSecureUrl; |
301
|
|
|
} |
302
|
1 |
|
|
303
|
1 |
|
/** |
304
|
|
|
* Enable the use of the secure protocol for image URLs |
305
|
|
|
*/ |
306
|
|
|
public function enableSecureImages() |
307
|
|
|
{ |
308
|
|
|
$this->useSecureUrl = TRUE; |
309
|
|
|
} |
310
|
|
|
|
311
|
|
|
/** |
312
|
|
|
* Disable the use of the secure protocol for image URLs |
313
|
|
|
*/ |
314
|
|
|
public function disableSecureImages() |
315
|
|
|
{ |
316
|
|
|
$this->useSecureUrl = FALSE; |
317
|
|
|
} |
318
|
|
|
|
319
|
|
|
/** |
320
|
|
|
* Create gravatar image |
321
|
|
|
* |
322
|
|
|
* @param string|NULL $email |
323
|
|
|
* @param int|NULL $size |
324
|
|
|
* |
325
|
|
|
* @return Utils\Image |
326
|
|
|
* |
327
|
|
|
* @throws Exceptions\InvalidArgumentException |
328
|
|
|
*/ |
329
|
|
|
public function get(string $email = NULL, int $size = NULL) : Utils\Image |
330
|
|
|
{ |
331
|
|
|
// Set user email address |
332
|
|
|
if ($email !== NULL && !Utils\Validators::isEmail($email)) { |
333
|
|
|
throw new Exceptions\InvalidArgumentException('Inserted email is not valid email address'); |
334
|
|
|
} |
335
|
|
|
|
336
|
|
|
if (!$size || !$this->isSizeValid($size)) { |
|
|
|
|
337
|
|
|
$size = NULL; |
338
|
|
|
} |
339
|
|
|
|
340
|
|
|
// Check if avatar is in cache |
341
|
|
|
if (!$gravatar = $this->cache->load($this->getEmailHash($email) . ($size ? '.' . $size : ''))) { |
342
|
|
|
// Get gravatar content |
343
|
|
|
$gravatar = @file_get_contents($this->buildUrl($email, $size)); |
344
|
|
|
|
345
|
|
|
// Store facebook avatar url into cache |
346
|
|
|
$this->cache->save($this->getEmailHash($email) . ($size ? '.' . $size : ''), $gravatar, [ |
347
|
|
|
Caching\Cache::EXPIRE => '7 days', |
348
|
|
|
]); |
349
|
|
|
} |
350
|
|
|
|
351
|
|
|
$this->image = Utils\Image::fromString($gravatar); |
352
|
|
|
$this->type = Utils\Image::JPEG; |
353
|
|
|
|
354
|
|
|
return $this->image; |
355
|
|
|
} |
356
|
|
|
|
357
|
|
|
/** |
358
|
|
|
* Build the avatar URL based on the provided email address |
359
|
|
|
* |
360
|
|
|
* @param string|NULL $email |
361
|
|
|
* @param int|NULL $size |
362
|
1 |
|
* @param string|NULL $maxRating |
363
|
|
|
* @param string|NULL $defaultImage |
364
|
|
|
* |
365
|
|
|
* @return string |
366
|
|
|
* |
367
|
1 |
|
* @throws Exceptions\InvalidArgumentException |
368
|
|
|
*/ |
369
|
|
|
public function buildUrl(string $email = NULL, int $size = NULL, string $maxRating = NULL, string $defaultImage = NULL) : string |
370
|
1 |
|
{ |
371
|
|
|
// Set user email address |
372
|
|
|
if ($email !== NULL && !Utils\Validators::isEmail($email)) { |
373
|
|
|
throw new Exceptions\InvalidArgumentException('Inserted email is not valid email address'); |
374
|
|
|
} |
375
|
|
|
|
376
|
|
|
// Create base url |
377
|
|
|
$url = $this->createUrl($email, $size, $maxRating, $defaultImage); |
378
|
|
|
|
379
|
|
|
// And we're done. |
380
|
|
|
return $url->getAbsoluteUrl(); |
381
|
|
|
} |
382
|
|
|
|
383
|
1 |
|
/** |
384
|
|
|
* Checks if a gravatar exists for the email. It does this by checking for the presence of 404 in the header |
385
|
1 |
|
* returned. Will return null if fsockopen fails, for example when the hostname cannot be resolved. |
386
|
|
|
* |
387
|
|
|
* @param string $email |
388
|
|
|
* |
389
|
1 |
|
* @return bool|NULL Boolean if we could connect, null if no connection to gravatar.com |
390
|
1 |
|
*/ |
391
|
1 |
|
public function exists(string $email) |
392
|
|
|
{ |
393
|
1 |
|
$path = $this->buildUrl($email, NULL, NULL, '404'); |
394
|
|
|
|
395
|
|
|
if (!$sock = @fsockopen('gravatar.com', 80, $errorNo, $error)) { |
396
|
|
|
return NULL; |
397
|
|
|
} |
398
|
|
|
|
399
|
|
|
fputs($sock, "HEAD " . $path . " HTTP/1.0\r\n\r\n"); |
400
|
|
|
$header = fgets($sock, 128); |
401
|
|
|
fclose($sock); |
402
|
|
|
|
403
|
|
|
return strpos($header, '404') ? FALSE : TRUE; |
404
|
|
|
} |
405
|
|
|
|
406
|
|
|
/** |
407
|
|
|
* @return Templating\Helpers |
408
|
|
|
*/ |
409
|
|
|
public function createTemplateHelpers() : Templating\Helpers |
410
|
|
|
{ |
411
|
|
|
return new Templating\Helpers($this); |
412
|
|
|
} |
413
|
|
|
|
414
|
|
|
/** |
415
|
1 |
|
* @param string $email |
416
|
|
|
* @param int|NULL $size |
417
|
|
|
* @param string|NULL $maxRating |
418
|
1 |
|
* @param string|NULL $defaultImage |
419
|
|
|
* |
420
|
|
|
* @return Http\Url |
421
|
|
|
*/ |
422
|
1 |
|
private function createUrl(string $email, int $size = NULL, string $maxRating = NULL, string $defaultImage = NULL) : Http\Url |
423
|
1 |
|
{ |
424
|
1 |
|
// Tack the email hash onto the end. |
425
|
1 |
|
$emailHash = $this->getEmailHash($email); |
426
|
|
|
|
427
|
|
|
// Start building the URL, and deciding if we're doing this via HTTPS or HTTP. |
428
|
|
|
$url = new Nette\Http\Url(($this->useSecureUrl ? static::HTTPS_URL : static::HTTP_URL) . $emailHash); |
429
|
1 |
|
|
430
|
|
|
if (!$size || !$this->isSizeValid($size)) { |
|
|
|
|
431
|
1 |
|
$size = NULL; |
432
|
|
|
} |
433
|
1 |
|
|
434
|
|
|
// Time to figure out our request params |
435
|
|
|
$params = [ |
436
|
|
|
's' => $size, |
437
|
|
|
'r' => $this->getMaxRating($maxRating), |
438
|
|
|
'd' => $this->getDefaultImage($defaultImage), |
439
|
|
|
'f' => is_null($email) ? 'y' : NULL, |
440
|
|
|
]; |
441
|
|
|
|
442
|
|
|
// Add query params |
443
|
|
|
$url->appendQuery($params); |
444
|
|
|
|
445
|
|
|
return $url; |
446
|
|
|
} |
447
|
|
|
} |
448
|
|
|
|
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
integer
values, zero is a special case, in particular the following results might be unexpected: