forked from PrestaShop/PrestaShop
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ImageManager.php
642 lines (570 loc) · 23.6 KB
/
ImageManager.php
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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
<?php
/**
* 2007-2017 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* https://opensource.org/licenses/OSL-3.0
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to [email protected] so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
* @author PrestaShop SA <[email protected]>
* @copyright 2007-2017 PrestaShop SA
* @license https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* International Registered Trademark & Property of PrestaShop SA
*/
/**
* Class ImageManagerCore
*
* This class includes functions for image manipulation
*
* @since 1.5.0
*/
class ImageManagerCore
{
const ERROR_FILE_NOT_EXIST = 1;
const ERROR_FILE_WIDTH = 2;
const ERROR_MEMORY_LIMIT = 3;
/**
* Generate a cached thumbnail for object lists (eg. carrier, order statuses...etc)
*
* @param string $image Real image filename
* @param string $cacheImage Cached filename
* @param int $size Desired size
* @param string $imageType Image type
* @param bool $disableCache When turned on a timestamp will be added to the image URI to disable the HTTP cache
* @param bool $regenerate When turned on and the file already exist, the file will be regenerated
*
*@return string
*/
public static function thumbnail($image, $cacheImage, $size, $imageType = 'jpg', $disableCache = true, $regenerate = false)
{
if (!file_exists($image)) {
return '';
}
if (file_exists(_PS_TMP_IMG_DIR_.$cacheImage) && $regenerate) {
@unlink(_PS_TMP_IMG_DIR_.$cacheImage);
}
if ($regenerate || !file_exists(_PS_TMP_IMG_DIR_.$cacheImage)) {
$infos = getimagesize($image);
// Evaluate the memory required to resize the image: if it's too much, you can't resize it.
if (!ImageManager::checkImageMemoryLimit($image)) {
return false;
}
$x = $infos[0];
$y = $infos[1];
$maxX = $size * 3;
// Size is already ok
if ($y < $size && $x <= $maxX) {
copy($image, _PS_TMP_IMG_DIR_.$cacheImage);
} else {
// We need to resize */
$ratioX = $x / ($y / $size);
if ($ratioX > $maxX) {
$ratioX = $maxX;
$size = $y / ($x / $maxX);
}
ImageManager::resize($image, _PS_TMP_IMG_DIR_.$cacheImage, $ratioX, $size, $imageType);
}
}
return '<img src="'.self::getThumbnailPath($cacheImage, $disableCache).'" alt="" class="imgm img-thumbnail" />';
}
/**
* @param $cacheImage
* @param $disableCache
* @return string
*/
public static function getThumbnailPath($cacheImage, $disableCache)
{
$cacheParam = $disableCache ? '?time='.time() : '';
if (Context::getContext()->controller->controller_type == 'admin') {
return '../img/tmp/'.$cacheImage.$cacheParam;
}
return _PS_TMP_IMG_.$cacheImage.$cacheParam;
}
/**
* Check if memory limit is too long or not
*
* @param mixed $image
*
* @return bool
*/
public static function checkImageMemoryLimit($image)
{
$infos = @getimagesize($image);
if (!is_array($infos) || !isset($infos['bits'])) {
return true;
}
$memoryLimit = Tools::getMemoryLimit();
// memory_limit == -1 => unlimited memory
if (function_exists('memory_get_usage') && (int) $memoryLimit != -1) {
$currentMemory = memory_get_usage();
$channel = isset($infos['channels']) ? ($infos['channels'] / 8) : 1;
// Evaluate the memory required to resize the image: if it's too much, you can't resize it.
// For perfs, avoid computing static maths formulas in the code. pow(2, 16) = 65536 ; 1024 * 1024 = 1048576
if (($infos[0] * $infos[1] * $infos['bits'] * $channel + 65536) * 1.8 + $currentMemory > $memoryLimit - 1048576) {
return false;
}
}
return true;
}
/**
* Resize, cut and optimize image
*
* @param string $sourceFile Image object from $_FILE
* @param string $destinationFile Destination filename
* @param int $destinationWidth Desired width (optional)
* @param int $destinationHeight Desired height (optional)
* @param string $fileType Desired file_type (may be override by PS_IMAGE_QUALITY)
* @param bool $forceType Don't override $file_type
* @param int $error Out error code
* @param int $targetWidth Needed by AdminImportController to speed up the import process
* @param int $targetHeight Needed by AdminImportController to speed up the import process
* @param int $quality Needed by AdminImportController to speed up the import process
* @param int $sourceWidth Needed by AdminImportController to speed up the import process
* @param int $sourceHeight Needed by AdminImportController to speed up the import process
*
*@return bool Operation result
*/
public static function resize(
$sourceFile,
$destinationFile,
$destinationWidth = null,
$destinationHeight = null,
$fileType = 'jpg',
$forceType = false,
&$error = 0,
&$targetWidth = null,
&$targetHeight = null,
$quality = 5,
&$sourceWidth = null,
&$sourceHeight = null
) {
clearstatcache(true, $sourceFile);
if (!file_exists($sourceFile) || !filesize($sourceFile)) {
return !($error = self::ERROR_FILE_NOT_EXIST);
}
list($tmpWidth, $tmpHeight, $type) = getimagesize($sourceFile);
$rotate = 0;
if (function_exists('exif_read_data') && function_exists('mb_strtolower')) {
$exif = @exif_read_data($sourceFile);
if ($exif && isset($exif['Orientation'])) {
switch ($exif['Orientation']) {
case 3:
$sourceWidth = $tmpWidth;
$sourceHeight = $tmpHeight;
$rotate = 180;
break;
case 6:
$sourceWidth = $tmpHeight;
$sourceHeight = $tmpWidth;
$rotate = -90;
break;
case 8:
$sourceWidth = $tmpHeight;
$sourceHeight = $tmpWidth;
$rotate = 90;
break;
default:
$sourceWidth = $tmpWidth;
$sourceHeight = $tmpHeight;
}
} else {
$sourceWidth = $tmpWidth;
$sourceHeight = $tmpHeight;
}
} else {
$sourceWidth = $tmpWidth;
$sourceHeight = $tmpHeight;
}
// If PS_IMAGE_QUALITY is activated, the generated image will be a PNG with .jpg as a file extension.
// This allow for higher quality and for transparency. JPG source files will also benefit from a higher quality
// because JPG reencoding by GD, even with max quality setting, degrades the image.
if (Configuration::get('PS_IMAGE_QUALITY') == 'png_all'
|| (Configuration::get('PS_IMAGE_QUALITY') == 'png' && $type == IMAGETYPE_PNG) && !$forceType) {
$fileType = 'png';
}
if (!$sourceWidth) {
return !($error = self::ERROR_FILE_WIDTH);
}
if (!$destinationWidth) {
$destinationWidth = $sourceWidth;
}
if (!$destinationHeight) {
$destinationHeight = $sourceHeight;
}
$widthDiff = $destinationWidth / $sourceWidth;
$heightDiff = $destinationHeight / $sourceHeight;
$psImageGenerationMethod = Configuration::get('PS_IMAGE_GENERATION_METHOD');
if ($widthDiff > 1 && $heightDiff > 1) {
$nextWidth = $sourceWidth;
$nextHeight = $sourceHeight;
} else {
if ($psImageGenerationMethod == 2 || (!$psImageGenerationMethod && $widthDiff > $heightDiff)) {
$nextHeight = $destinationHeight;
$nextWidth = round(($sourceWidth * $nextHeight) / $sourceHeight);
$destinationWidth = (int) (!$psImageGenerationMethod ? $destinationWidth : $nextWidth);
} else {
$nextWidth = $destinationWidth;
$nextHeight = round($sourceHeight * $destinationWidth / $sourceWidth);
$destinationHeight = (int) (!$psImageGenerationMethod ? $destinationHeight : $nextHeight);
}
}
if (!ImageManager::checkImageMemoryLimit($sourceFile)) {
return !($error = self::ERROR_MEMORY_LIMIT);
}
$targetWidth = $destinationWidth;
$targetHeight = $destinationHeight;
$destImage = imagecreatetruecolor($destinationWidth, $destinationHeight);
// If image is a PNG and the output is PNG, fill with transparency. Else fill with white background.
if ($fileType == 'png' && $type == IMAGETYPE_PNG) {
imagealphablending($destImage, false);
imagesavealpha($destImage, true);
$transparent = imagecolorallocatealpha($destImage, 255, 255, 255, 127);
imagefilledrectangle($destImage, 0, 0, $destinationWidth, $destinationHeight, $transparent);
} else {
$white = imagecolorallocate($destImage, 255, 255, 255);
imagefilledrectangle($destImage, 0, 0, $destinationWidth, $destinationHeight, $white);
}
$srcImage = ImageManager::create($type, $sourceFile);
if ($rotate) {
$srcImage = imagerotate($srcImage, $rotate, 0);
}
if ($destinationWidth >= $sourceWidth && $destinationHeight >= $sourceHeight) {
imagecopyresized($destImage, $srcImage, (int) (($destinationWidth - $nextWidth) / 2), (int) (($destinationHeight - $nextHeight) / 2), 0, 0, $nextWidth, $nextHeight, $sourceWidth, $sourceHeight);
} else {
ImageManager::imagecopyresampled($destImage, $srcImage, (int) (($destinationWidth - $nextWidth) / 2), (int) (($destinationHeight - $nextHeight) / 2), 0, 0, $nextWidth, $nextHeight, $sourceWidth, $sourceHeight, $quality);
}
$writeFile = ImageManager::write($fileType, $destImage, $destinationFile);
Hook::exec('actionOnImageResizeAfter', array('dst_file' => $destinationFile, 'file_type' => $fileType));
@imagedestroy($srcImage);
file_put_contents(
dirname($destinationFile) . DIRECTORY_SEPARATOR . 'fileType',
$fileType
);
return $writeFile;
}
/**
* @param $dstImage
* @param $srcImage
* @param $dstX
* @param $dstY
* @param $srcX
* @param $srcY
* @param $dstW
* @param $dstH
* @param $srcW
* @param $srcH
* @param int $quality
*
* @return bool
*/
public static function imagecopyresampled(
&$dstImage,
$srcImage,
$dstX,
$dstY,
$srcX,
$srcY,
$dstW,
$dstH,
$srcW,
$srcH,
$quality = 3
) {
// Plug-and-Play fastimagecopyresampled function replaces much slower imagecopyresampled.
// Just include this function and change all "imagecopyresampled" references to "fastimagecopyresampled".
// Typically from 30 to 60 times faster when reducing high resolution images down to thumbnail size using the default quality setting.
// Author: Tim Eckel - Date: 09/07/07 - Version: 1.1 - Project: FreeRingers.net - Freely distributable - These comments must remain.
//
// Optional "quality" parameter (defaults is 3). Fractional values are allowed, for example 1.5. Must be greater than zero.
// Between 0 and 1 = Fast, but mosaic results, closer to 0 increases the mosaic effect.
// 1 = Up to 350 times faster. Poor results, looks very similar to imagecopyresized.
// 2 = Up to 95 times faster. Images appear a little sharp, some prefer this over a quality of 3.
// 3 = Up to 60 times faster. Will give high quality smooth results very close to imagecopyresampled, just faster.
// 4 = Up to 25 times faster. Almost identical to imagecopyresampled for most images.
// 5 = No speedup. Just uses imagecopyresampled, no advantage over imagecopyresampled.
if (empty($srcImage) || empty($dstImage) || $quality <= 0) {
return false;
}
if ($quality < 5 && (($dstW * $quality) < $srcW || ($dstH * $quality) < $srcH)) {
$temp = imagecreatetruecolor($dstW * $quality + 1, $dstH * $quality + 1);
imagecopyresized($temp, $srcImage, 0, 0, $srcX, $srcY, $dstW * $quality + 1, $dstH * $quality + 1, $srcW, $srcH);
imagecopyresampled($dstImage, $temp, $dstX, $dstY, 0, 0, $dstW, $dstH, $dstW * $quality, $dstH * $quality);
imagedestroy($temp);
} else {
imagecopyresampled($dstImage, $srcImage, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH);
}
return true;
}
/**
* Check if file is a real image
*
* @param string $filename File path to check
* @param string $fileMimeType File known mime type (generally from $_FILES)
* @param array $mimeTypeList Allowed MIME types
*
* @return bool
*/
public static function isRealImage($filename, $fileMimeType = null, $mimeTypeList = null)
{
// Detect mime content type
$mimeType = false;
if (!$mimeTypeList) {
$mimeTypeList = array('image/gif', 'image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png', 'image/x-png');
}
// Try 4 different methods to determine the mime type
if (function_exists('getimagesize')) {
$imageInfo = @getimagesize($filename);
if ($imageInfo) {
$mimeType = $imageInfo['mime'];
} else {
$fileMimeType = false;
}
} elseif (function_exists('finfo_open')) {
$const = defined('FILEINFO_MIME_TYPE') ? FILEINFO_MIME_TYPE : FILEINFO_MIME;
$finfo = finfo_open($const);
$mimeType = finfo_file($finfo, $filename);
finfo_close($finfo);
} elseif (function_exists('mime_content_type')) {
$mimeType = mime_content_type($filename);
} elseif (function_exists('exec')) {
$mimeType = trim(exec('file -b --mime-type '.escapeshellarg($filename)));
if (!$mimeType) {
$mimeType = trim(exec('file --mime '.escapeshellarg($filename)));
}
if (!$mimeType) {
$mimeType = trim(exec('file -bi '.escapeshellarg($filename)));
}
}
if ($fileMimeType && (empty($mimeType) || $mimeType == 'regular file' || $mimeType == 'text/plain')) {
$mimeType = $fileMimeType;
}
// For each allowed MIME type, we are looking for it inside the current MIME type
foreach ($mimeTypeList as $type) {
if (strstr($mimeType, $type)) {
return true;
}
}
return false;
}
/**
* Check if image file extension is correct
*
* @param string $filename Real filename
* @param array|null $authorizedExtensions
*
* @return bool True if it's correct
*/
public static function isCorrectImageFileExt($filename, $authorizedExtensions = null)
{
// Filter on file extension
if ($authorizedExtensions === null) {
$authorizedExtensions = array('gif', 'jpg', 'jpeg', 'jpe', 'png');
}
$nameExplode = explode('.', $filename);
if (count($nameExplode) >= 2) {
$currentExtension = strtolower($nameExplode[count($nameExplode) - 1]);
if (!in_array($currentExtension, $authorizedExtensions)) {
return false;
}
} else {
return false;
}
return true;
}
/**
* Validate image upload (check image type and weight)
*
* @param array $file Upload $_FILE value
* @param int $maxFileSize Maximum upload size
*
* @return bool|string Return false if no error encountered
*/
public static function validateUpload($file, $maxFileSize = 0, $types = null)
{
if ((int) $maxFileSize > 0 && $file['size'] > (int) $maxFileSize) {
return Context::getContext()->getTranslator()->trans('Image is too large (%1$d kB). Maximum allowed: %2$d kB', array($file['size'] / 1024, $maxFileSize / 1024), 'Admin.Notifications.Error');
}
if (!ImageManager::isRealImage($file['tmp_name'], $file['type']) || !ImageManager::isCorrectImageFileExt($file['name'], $types) || preg_match('/\%00/', $file['name'])) {
return Context::getContext()->getTranslator()->trans('Image format not recognized, allowed formats are: .gif, .jpg, .png', array(), 'Admin.Notifications.Error');
}
if ($file['error']) {
return Context::getContext()->getTranslator()->trans('Error while uploading image; please change your server\'s settings. (Error code: %s)', array($file['error']), 'Admin.Notifications.Error');
}
return false;
}
/**
* Validate icon upload
*
* @param array $file Upload $_FILE value
* @param int $maxFileSize Maximum upload size
*
* @return bool|string Return false if no error encountered
*/
public static function validateIconUpload($file, $maxFileSize = 0)
{
if ((int) $maxFileSize > 0 && $file['size'] > $maxFileSize) {
return Context::getContext()->getTranslator()->trans('Image is too large (%1$d kB). Maximum allowed: %2$d kB', array($file['size'] / 1000, $maxFileSize / 1000), 'Admin.Notifications.Error');
}
if (substr($file['name'], -4) != '.ico') {
return Context::getContext()->getTranslator()->trans('Image format not recognized, allowed formats are: .ico', array(), 'Admin.Notifications.Error');
}
if ($file['error']) {
return Context::getContext()->getTranslator()->trans('Error while uploading image; please change your server\'s settings.', array(), 'Admin.Notifications.Error');
}
return false;
}
/**
* Cut image
*
* @param array $srcFile Origin filename
* @param string $dstFile Destination filename
* @param int $dstWidth Desired width
* @param int $dstHeight Desired height
* @param string $fileType
* @param int $dstX
* @param int $dstY
*
* @return bool Operation result
*/
public static function cut($srcFile, $dstFile, $dstWidth = null, $dstHeight = null, $fileType = 'jpg', $dstX = 0, $dstY = 0)
{
if (!file_exists($srcFile)) {
return false;
}
// Source information
$srcInfo = getimagesize($srcFile);
$src = array(
'width' => $srcInfo[0],
'height' => $srcInfo[1],
'ressource' => ImageManager::create($srcInfo[2], $srcFile),
);
// Destination information
$dest = array();
$dest['x'] = $dstX;
$dest['y'] = $dstY;
$dest['width'] = !is_null($dstWidth) ? $dstWidth : $src['width'];
$dest['height'] = !is_null($dstHeight) ? $dstHeight : $src['height'];
$dest['ressource'] = ImageManager::createWhiteImage($dest['width'], $dest['height']);
$white = imagecolorallocate($dest['ressource'], 255, 255, 255);
imagecopyresampled($dest['ressource'], $src['ressource'], 0, 0, $dest['x'], $dest['y'], $dest['width'], $dest['height'], $dest['width'], $dest['height']);
imagecolortransparent($dest['ressource'], $white);
$return = ImageManager::write($fileType, $dest['ressource'], $dstFile);
Hook::exec('actionOnImageCutAfter', array('dst_file' => $dstFile, 'file_type' => $fileType));
@imagedestroy($src['ressource']);
return $return;
}
/**
* Create an image with GD extension from a given type
*
* @param string $type
* @param string $filename
* @return resource
*/
public static function create($type, $filename)
{
switch ($type) {
case IMAGETYPE_GIF:
return imagecreatefromgif($filename);
break;
case IMAGETYPE_PNG:
return imagecreatefrompng($filename);
break;
case IMAGETYPE_JPEG:
default:
return imagecreatefromjpeg($filename);
break;
}
}
/**
* Create an empty image with white background
*
* @param int $width
* @param int $height
* @return resource
*/
public static function createWhiteImage($width, $height)
{
$image = imagecreatetruecolor($width, $height);
$white = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $white);
return $image;
}
/**
* Generate and write image
*
* @param string $type
* @param resource $resource
* @param string $filename
*
* @return bool
*/
public static function write($type, $resource, $filename)
{
static $psPngQuality = null;
static $psJpegQuality = null;
if ($psPngQuality === null) {
$psPngQuality = Configuration::get('PS_PNG_QUALITY');
}
if ($psJpegQuality === null) {
$psJpegQuality = Configuration::get('PS_JPEG_QUALITY');
}
switch ($type) {
case 'gif':
$success = imagegif($resource, $filename);
break;
case 'png':
$quality = ($psPngQuality === false ? 7 : $psPngQuality);
$success = imagepng($resource, $filename, (int) $quality);
break;
case 'jpg':
case 'jpeg':
default:
$quality = ($psJpegQuality === false ? 90 : $psJpegQuality);
imageinterlace($resource, 1); /// make it PROGRESSIVE
$success = imagejpeg($resource, $filename, (int) $quality);
break;
}
imagedestroy($resource);
@chmod($filename, 0664);
return $success;
}
/**
* Return the mime type by the file extension
*
* @param string $fileName
*
* @return string
*/
public static function getMimeTypeByExtension($fileName)
{
$types = array(
'image/gif' => array('gif'),
'image/jpeg' => array('jpg', 'jpeg'),
'image/png' => array('png'),
);
$extension = substr($fileName, strrpos($fileName, '.') + 1);
$mimeType = null;
foreach ($types as $mime => $exts) {
if (in_array($extension, $exts)) {
$mimeType = $mime;
break;
}
}
if ($mimeType === null) {
$mimeType = 'image/jpeg';
}
return $mimeType;
}
}