forked from nosilver4u/ewwwio-silo
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ewww-image-optimizer.php
2204 lines (2170 loc) · 108 KB
/
ewww-image-optimizer.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
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
// check to see if the cloud constant is defined (which would mean we've already run init) and then set it properly if not
function ewww_image_optimizer_cloud_init() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_CLOUD' ) && ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) && ewww_image_optimizer_get_option( 'ewww_image_optimizer_jpg_level' ) > 10 && ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) > 10 ) {
define( 'EWWW_IMAGE_OPTIMIZER_CLOUD', TRUE );
} elseif ( ! defined( 'EWWW_IMAGE_OPTIMIZER_CLOUD' ) ) {
define( 'EWWW_IMAGE_OPTIMIZER_CLOUD', FALSE );
}
ewwwio_memory( __FUNCTION__ );
}
function ewww_image_optimizer_exec_init() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
// If cloud is fully enabled, we're going to skip all the checks related to the bundled tools
if ( EWWW_IMAGE_OPTIMIZER_CLOUD ) {
ewwwio_debug_message( 'cloud options enabled, shutting off binaries' );
ewww_image_optimizer_disable_tools();
// Check if this is an unsupported OS (not Linux or Mac OSX or FreeBSD or Windows or SunOS)
} elseif ( 'Linux' != PHP_OS && 'Darwin' != PHP_OS && 'FreeBSD' != PHP_OS && 'WINNT' != PHP_OS && 'SunOS' != PHP_OS ) {
// call the function to display a notice
ewww_image_optimizer_notice_os();
// turn off all the tools
ewwwio_debug_message( 'unsupported OS, disabling tools: ' . PHP_OS );
ewww_image_optimizer_disable_tools();
} else {
ewww_image_optimizer_tool_init();
add_action( 'load-upload.php', 'ewww_image_optimizer_tool_init', 9 );
add_action( 'load-media-new.php', 'ewww_image_optimizer_tool_init' );
add_action( 'load-media_page_ewww-image-optimizer-bulk', 'ewww_image_optimizer_tool_init' );
add_action( 'load-settings_page_ewww-image-optimizer/ewww-image-optimizer', 'ewww_image_optimizer_tool_init' );
add_action( 'load-plugins.php', 'ewww_image_optimizer_tool_init' );
add_action( 'load-ims_gallery_page_ewww-ims-optimize', 'ewww_image_optimizer_tool_init' );
add_action( 'load-media_page_ewww-image-optimizer-unoptimized', 'ewww_image_optimizer_tool_init' );
add_action( 'load-flagallery_page_flag-manage-gallery', 'ewww_image_optimizer_tool_init' );
// add_action( 'load-', 'ewww_image_optimizer_tool_init' );
}
ewwwio_memory( __FUNCTION__ );
}
// check for binary installation and availability
function ewww_image_optimizer_tool_init() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
// make sure the bundled tools are installed
if( ! ewww_image_optimizer_get_option( 'ewww_image_optimizer_skip_bundle' ) ) {
ewww_image_optimizer_install_tools();
}
// echo ewww_image_optimizer_get_option( 'ewww_image_optimizer_skip_bundle' ) . "bundle skipper\n";
if ( EWWW_IMAGE_OPTIMIZER_CLOUD ) {
ewwwio_debug_message( 'cloud options enabled, shutting off binaries' );
ewww_image_optimizer_disable_tools();
}
// check for optimization utilities and register a notice if something is missing
ewww_image_optimizer_notice_utils();
// ewww_image_optimizer_debug_log();
}
// set some default option values
function ewww_image_optimizer_set_defaults() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
add_option( 'ewww_image_optimizer_disable_pngout', true );
add_option( 'ewww_image_optimizer_optipng_level', 2 );
add_option( 'ewww_image_optimizer_pngout_level', 2 );
add_option( 'ewww_image_optimizer_remove_meta', true );
add_option( 'ewww_image_optimizer_jpg_level', '10' );
add_option( 'ewww_image_optimizer_png_level', '10' );
add_option( 'ewww_image_optimizer_gif_level', '10' );
add_option( 'ewww_image_optimizer_pdf_level', '0' );
}
// tells the user they are on an unsupported operating system
function ewww_image_optimizer_notice_os() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
if ( ! defined( 'EWWW_CLI' ) ) {
echo "<div id='ewww-image-optimizer-warning-os' class='error'><p><strong>" . esc_html__('EWWW Image Optimizer is supported on Linux, FreeBSD, Mac OSX, and Windows', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ".</strong> " . sprintf(esc_html__('Unfortunately, the EWWW Image Optimizer plugin does not work with %s', EWWW_IMAGE_OPTIMIZER_DOMAIN), htmlentities( PHP_OS ) ) . ".</p></div>";
} else {
EWWWIO_CLI::warning( __('EWWW Image Optimizer is supported on Linux, FreeBSD, Mac OSX, and Windows', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ". " . sprintf( __('Unfortunately, the EWWW Image Optimizer plugin does not work with %s', EWWW_IMAGE_OPTIMIZER_DOMAIN), PHP_OS ) . "." );
}
}
// generates the source and destination paths for the executables that we bundle with the plugin based on the operating system
function ewww_image_optimizer_install_paths() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
if (PHP_OS == 'WINNT') {
$gifsicle_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'gifsicle.exe';
$optipng_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'optipng.exe';
$jpegtran_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'jpegtran.exe';
$pngquant_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'pngquant.exe';
$webp_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'cwebp.exe';
$gifsicle_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle.exe';
$optipng_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng.exe';
$jpegtran_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran.exe';
$pngquant_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant.exe';
$webp_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp.exe';
}
if (PHP_OS == 'Darwin') {
$gifsicle_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'gifsicle-mac';
$optipng_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'optipng-mac';
$jpegtran_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'jpegtran-mac';
$pngquant_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'pngquant-mac';
$webp_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'cwebp-mac9';
$gifsicle_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle';
$optipng_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng';
$jpegtran_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran';
$pngquant_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant';
$webp_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp';
}
if (PHP_OS == 'SunOS') {
$gifsicle_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'gifsicle-sol';
$optipng_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'optipng-sol';
$jpegtran_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'jpegtran-sol';
$pngquant_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'pngquant-sol';
$webp_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'cwebp-sol';
$gifsicle_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle';
$optipng_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng';
$jpegtran_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran';
$pngquant_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant';
$webp_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp';
}
if (PHP_OS == 'FreeBSD') {
$arch_type = php_uname('m');
ewwwio_debug_message( "CPU architecture: $arch_type" );
$gifsicle_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'gifsicle-fbsd';
$optipng_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'optipng-fbsd';
$jpegtran_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'jpegtran-fbsd';
$pngquant_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'pngquant-fbsd';
$webp_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'cwebp-fbsd';
$gifsicle_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle';
$optipng_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng';
$jpegtran_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran';
$pngquant_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant';
$webp_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp';
}
if (PHP_OS == 'Linux') {
$arch_type = php_uname('m');
ewwwio_debug_message( "CPU architecture: $arch_type" );
$gifsicle_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'gifsicle-linux';
$optipng_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'optipng-linux';
$jpegtran_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'jpegtran-linux';
$pngquant_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'pngquant-linux';
$webp_src = EWWW_IMAGE_OPTIMIZER_BINARY_PATH . 'cwebp-linux';
$gifsicle_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle';
$optipng_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng';
$jpegtran_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran';
$pngquant_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant';
$webp_dst = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp';
}
ewwwio_debug_message( "generated paths:<br>$jpegtran_src<br>$optipng_src<br>$gifsicle_src<br>$pngquant_src<br>$webp_src<br>$jpegtran_dst<br>$optipng_dst<br>$gifsicle_dst<br>$pngquant_dst<br>$webp_dst" );
ewwwio_memory( __FUNCTION__ );
return array( $jpegtran_src, $optipng_src, $gifsicle_src, $pngquant_src, $webp_src, $jpegtran_dst, $optipng_dst, $gifsicle_dst, $pngquant_dst, $webp_dst );
}
function ewww_image_optimizer_check_permissions( $file, $minimum ) {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$perms = fileperms( $file );
ewwwio_debug_message( "permissions for $file: " . substr( sprintf( '%o', $perms ), -4 ) );
$perms_pass = true;
if ( ( $perms & 0x8000 ) != 0x8000 ) {
$perms_pass = false;
}
$minimum = str_split( $minimum );
if ( $minimum[0] == 'r' && ! ( $perms & 0x0100 ) ) {
$perms_pass = false;
}
if ( $minimum[1] == 'w' && ! ( $perms & 0x0080 ) ) {
$perms_pass = false;
}
if ( $minimum[2] == 'x' && ! ( $perms & 0x0040 ) ) {
$perms_pass = false;
}
if ( $minimum[3] == 'r' && ! ( $perms & 0x0020 ) ) {
$perms_pass = false;
}
if ( $minimum[4] == 'w' && ! ( $perms & 0x0010 ) ) {
$perms_pass = false;
}
if ( $minimum[5] == 'x' && ! ( $perms & 0x0008 ) ) {
$perms_pass = false;
}
if ( $minimum[6] == 'r' && ! ( $perms & 0x0004 ) ) {
$perms_pass = false;
}
if ( $minimum[7] == 'w' && ! ( $perms & 0x0002 ) ) {
$perms_pass = false;
}
if ( $minimum[8] == 'x' && ! ( $perms & 0x0001 ) ) {
$perms_pass = false;
}
if ( $perms_pass ) {
ewwwio_debug_message( 'permissions ok' );
} else {
ewwwio_debug_message( 'permissions insufficient' );
}
return $perms_pass;
}
function ewww_image_optimizer_tool_folder_notice() {
if ( ! defined( 'EWWW_CLI' ) ) {
echo "<div id='ewww-image-optimizer-warning-tool-folder-create' class='error'><p><strong>" . esc_html__('EWWW Image Optimizer could not create the tool folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ": " . htmlentities(EWWW_IMAGE_OPTIMIZER_TOOL_PATH) . ".</strong> " . esc_html__('Please adjust permissions or create the folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ".</p></div>";
} else {
EWWWIO_CLI::warning( __('EWWW Image Optimizer could not create the tool folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ": " . EWWW_IMAGE_OPTIMIZER_TOOL_PATH . ". " . __('Please adjust permissions or create the folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "." );
}
}
function ewww_image_optimizer_tool_folder_permissions_notice() {
if ( ! defined( 'EWWW_CLI' ) ) {
$settings_page = '/?settings=1';
echo "<div id='ewww-image-optimizer-warning-tool-folder-permissions' class='error'><p><strong>" . sprintf( esc_html__( 'EWWW Image Optimizer could not install tools in %s', EWWW_IMAGE_OPTIMIZER_DOMAIN ), htmlentities( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) . ".</strong> " . sprintf( esc_html__( 'Please adjust permissions or create the folder. If you have installed the tools elsewhere on your system, check the option to %s.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), esc_html__( 'Use System Paths', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ) . " " . wp_kses( sprintf( __( 'For more details, visit the %1$s or the %2$s.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), "<a href='$settings_page'>" . __('Settings Page', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "</a>", "<a href='https://wordpress.org/extend/plugins/ewww-image-optimizer/installation/'>" . __('Installation Instructions', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "</a>" ), array( 'a' => array( 'href' => array() ) ) ) . '</p></div>';
} else {
EWWWIO_CLI::warning( sprintf( __( 'EWWW Image Optimizer could not install tools in %s', EWWW_IMAGE_OPTIMIZER_DOMAIN ), EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) . ". " . sprintf( __( 'Please adjust permissions or create the folder. If you have installed the tools elsewhere on your system, enable the option to %s.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), esc_html__( 'Use System Paths', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ) );
}
}
// installs the executables that are bundled with the plugin
function ewww_image_optimizer_install_tools () {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
ewwwio_debug_message( "Checking/Installing tools in " . EWWW_IMAGE_OPTIMIZER_TOOL_PATH );
$toolfail = false;
if ( ! is_dir( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) && is_writable( dirname( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) ) {
ewwwio_debug_message( 'folder does not exist, creating...' );
if ( ! mkdir( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) {
ewwwio_debug_message( 'could not create folder' );
return;
}
} elseif ( is_dir( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) {
if ( ! is_writable( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) {
ewwwio_debug_message( 'tool folder is not writable, not installing anything' );
return;
}
$ewww_perms = substr( sprintf( '%o', fileperms( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ), -4 );
ewwwio_debug_message( "tool folder permissions: $ewww_perms" );
} else {
ewwwio_debug_message( 'parent folder is not writable, and the tools/ folder does not exist' );
return;
}
list ( $jpegtran_src, $optipng_src, $gifsicle_src, $pngquant_src, $webp_src, $jpegtran_dst, $optipng_dst, $gifsicle_dst, $pngquant_dst, $webp_dst ) = ewww_image_optimizer_install_paths();
$skip = ewww_image_optimizer_skip_tools();
if ( ! $skip['jpegtran'] && ( ! file_exists( $jpegtran_dst ) || filesize( $jpegtran_dst ) != filesize( $jpegtran_src ) ) ) {
ewwwio_debug_message( 'jpegtran not found or different size, installing' );
if ( ! copy( $jpegtran_src, $jpegtran_dst ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not copy jpegtran' );
}
}
if ( ! $skip['gifsicle'] && ( ! file_exists( $gifsicle_dst ) || filesize( $gifsicle_dst ) != filesize( $gifsicle_src ) ) ) {
ewwwio_debug_message( 'gifsicle not found or different size, installing' );
if ( ! copy( $gifsicle_src, $gifsicle_dst ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not copy gifsicle' );
}
}
if ( ! $skip['optipng'] && ( ! file_exists( $optipng_dst ) || filesize( $optipng_dst ) != filesize( $optipng_src ) ) ) {
ewwwio_debug_message( 'optipng not found or different size, installing' );
if ( ! copy( $optipng_src, $optipng_dst ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not copy optipng' );
}
}
if ( ! $skip['pngquant'] && ( ! file_exists( $pngquant_dst ) || filesize( $pngquant_dst ) != filesize( $pngquant_src ) ) ) {
ewwwio_debug_message( 'pngquant not found or different size, installing' );
if ( ! copy( $pngquant_src, $pngquant_dst ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not copy pngquant' );
}
}
if ( ! $skip['webp'] && ( ! file_exists( $webp_dst ) || filesize( $webp_dst ) != filesize( $webp_src ) ) ) {
ewwwio_debug_message( 'webp not found or different size, installing' );
if ( ! copy( $webp_src, $webp_dst ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not copy webp' );
}
}
// install special version of cwebp for Mac OSX 10.8 systems
if ( PHP_OS == 'Darwin' && ! $skip['webp'] ) {
$webp8_dst = $webp_dst . '-alt';
$webp8_src = str_replace( 'mac9', 'mac8', $webp_src );
if ( ! file_exists( $webp8_dst ) || ( ewww_image_optimizer_md5check( $webp8_dst ) && filesize( $webp8_dst ) != filesize( $webp8_src ) ) ) {
ewwwio_debug_message( "copying $webp8_src to $webp8_dst" );
if ( ! copy( $webp8_src, $webp8_dst ) ) {
// this isn't a fatal error, besides we'll see it in the debug if needed
ewwwio_debug_message( 'could not copy OSX 10.8 cwebp to cwebp-alt' );
}
if ( ! ewww_image_optimizer_check_permissions( $webp8_dst, 'rwxr-xr-x' ) ) {
if ( ! chmod( $webp8_dst, 0755 ) ) {
ewwwio_debug_message( 'could not set cwebp8-alt permissions' );
}
}
}
}
if ( PHP_OS != 'WINNT' && ! $toolfail ) {
ewwwio_debug_message( 'Linux/UNIX style OS, checking permissions' );
if ( ! $skip['jpegtran'] && ! ewww_image_optimizer_check_permissions( $jpegtran_dst, 'rwxr-xr-x' ) ) {
if ( ! chmod( $jpegtran_dst, 0755 ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not set jpegtran permissions' );
}
}
if ( ! $skip['gifsicle'] && ! ewww_image_optimizer_check_permissions( $gifsicle_dst, 'rwxr-xr-x' ) ) {
if ( ! chmod( $gifsicle_dst, 0755 ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not set gifsicle permissions' );
}
}
if ( ! $skip['optipng'] && ! ewww_image_optimizer_check_permissions( $optipng_dst, 'rwxr-xr-x' ) ) {
if ( ! chmod( $optipng_dst, 0755 ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not set optipng permissions' );
}
}
if ( ! $skip['pngquant'] && ! ewww_image_optimizer_check_permissions( $pngquant_dst, 'rwxr-xr-x' ) ) {
if ( ! chmod( $pngquant_dst, 0755 ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not set pngquant permissions' );
}
}
if ( ! $skip['webp'] && ! ewww_image_optimizer_check_permissions( $webp_dst, 'rwxr-xr-x' ) ) {
if ( ! chmod( $webp_dst, 0755 ) ) {
$toolfail = true;
ewwwio_debug_message( 'could not set webp permissions' );
}
}
}
if ( $toolfail ) {
if ( ! defined( 'EWWW_CLI' ) ) {
$settings_page = '/?settings=1';
echo "<div id='ewww-image-optimizer-warning-tool-install' class='error'><p><strong>" . sprintf( esc_html__( 'EWWW Image Optimizer could not install tools in %s', EWWW_IMAGE_OPTIMIZER_DOMAIN ), htmlentities( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) . ".</strong> " . sprintf( esc_html__( 'Please adjust permissions or create the folder. If you have installed the tools elsewhere on your system, check the option to %s.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), esc_html__( 'Use System Paths', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ) . " " . wp_kses( sprintf( __( 'For more details, visit the %1$s or the %2$s.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), "<a href='$settings_page'>" . __( 'Settings Page', EWWW_IMAGE_OPTIMIZER_DOMAIN ) . "</a>", "<a href='https://wordpress.org/extend/plugins/ewww-image-optimizer/installation/'>" . __( 'Installation Instructions', EWWW_IMAGE_OPTIMIZER_DOMAIN ) . '</a>'), array( 'a' => array( 'href' => array() ) ) ) . '</p></div>';
} else {
EWWWIO_CLI::warning( sprintf( __( 'EWWW Image Optimizer could not install tools in %s', EWWW_IMAGE_OPTIMIZER_DOMAIN ), EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) . ". " . sprintf( __( 'Please adjust permissions or create the folder. If you have installed the tools elsewhere on your system, enable the %s option.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), 'ewww_image_optimizer_skip_bundle' ) );
}
}
ewwwio_memory( __FUNCTION__ );
}
// checks which tools should be skipped, and returns an array with each tool
function ewww_image_optimizer_skip_tools() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$skip['jpegtran'] = false;
$skip['optipng'] = false;
$skip['gifsicle'] = false;
$skip['pngout'] = false;
// except these which are off by default
$skip['pngquant'] = true;
$skip['webp'] = true;
// if the user has disabled a variable, we aren't going to bother checking to see if it is there
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_jpg_level' ) == 0 || ewww_image_optimizer_get_option( 'ewww_image_optimizer_jpg_level' ) > 10 ) {
$skip['jpegtran'] = true;
}
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_disable_optipng' ) || ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) == 0 || ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) && ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) > 10 ) ) {
$skip['optipng'] = true;
}
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_gif_level' ) == 0 || ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) ) {
$skip['gifsicle'] = true;
}
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_disable_pngout' ) || ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) == 0 || ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) && ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) > 10 ) ) {
$skip['pngout'] = true;
}
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) == 40 && ! ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) ) {
$skip['pngquant'] = false;
}
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_webp' ) && ! ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) && ewww_image_optimizer_get_option( 'ewww_image_optimizer_jpg_level' ) > 10 && ewww_image_optimizer_get_option( 'ewww_image_optimizer_png_level' ) > 10 ) ) {
$skip['webp'] = false;
}
foreach ( $skip as $tool => $disabled ) {
if ( ! $disabled ) {
ewwwio_debug_message( "enabled: $tool" );
}
}
return $skip;
}
// we check for safe mode and exec, then also direct the user where to go if they don't have the tools installed
// this is another function called by hook usually
function ewww_image_optimizer_notice_utils() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
// Check if exec is disabled
if ( ewww_image_optimizer_exec_check() ) {
//display a warning if exec() is disabled, can't run much of anything without it
if ( ! defined( 'EWWW_CLI' ) ) {
echo "<div id='ewww-image-optimizer-warning-exec' class='error'><p>" . esc_html__( 'EWWW Image Optimizer requires exec() or an API key. Your system administrator has disabled the exec() function, ask them to enable it.', EWWW_IMAGE_OPTIMIZER_DOMAIN ) . "</p></div>";
} else {
EWWWIO_CLI::error( __( 'EWWW Image Optimizer requires exec() or an API key. Your system administrator has disabled the exec() function, ask them to enable it.', EWWW_IMAGE_OPTIMIZER_DOMAIN ) );
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_NOEXEC' ) ) {
define( 'EWWW_IMAGE_OPTIMIZER_NOEXEC', true );
}
ewwwio_debug_message( 'exec seems to be disabled' );
ewww_image_optimizer_disable_tools();
return;
// otherwise, query the php settings for safe mode
} elseif ( ewww_image_optimizer_safemode_check() ) {
// display a warning to the user
if ( ! defined( 'EWWW_CLI' ) ) {
echo "<div id='ewww-image-optimizer-warning-opt-png' class='error'><p>" . esc_html__( 'Safe Mode is turned on for PHP. This application cannot operate in Safe Mode unless you have an API key.', EWWW_IMAGE_OPTIMIZER_DOMAIN ) . "</p></div>";
} else {
EWWWIO_CLI::error( __( 'Safe Mode is turned on for PHP. This application cannot operate in Safe Mode unless you have an API key.', EWWW_IMAGE_OPTIMIZER_DOMAIN ) );
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_NOEXEC' ) ) {
define( 'EWWW_IMAGE_OPTIMIZER_NOEXEC', true );
}
ewwwio_debug_message( 'safe mode appears to be enabled' );
ewww_image_optimizer_disable_tools();
return;
} else {
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_NOEXEC' ) ) {
define( 'EWWW_IMAGE_OPTIMIZER_NOEXEC', false );
}
}
$skip = ewww_image_optimizer_skip_tools();
// attempt to retrieve values for utility paths, and store them in the appropriate variables
$required = ewww_image_optimizer_path_check( ! $skip['jpegtran'], ! $skip['optipng'], ! $skip['gifsicle'], ! $skip['pngout'], ! $skip['pngquant'], ! $skip['webp'] );
// we are going to store our validation results in $missing
$missing = array();
// go through each of the required tools
foreach( $required as $key => $req ) {
// if the tool wasn't found, add it to the $missing array if we are supposed to check the tool in question
switch( $key ) {
case 'JPEGTRAN':
if ( ! $skip['jpegtran'] && empty( $req ) ) {
$missing[] = 'jpegtran';
$req = false;
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_' . $key ) ) {
ewwwio_debug_message( "defining EWWW_IMAGE_OPTIMIZER_$key" );
define( 'EWWW_IMAGE_OPTIMIZER_' . $key, $req );
}
break;
case 'OPTIPNG':
if ( ! $skip['optipng'] && empty( $req ) ) {
$missing[] = 'optipng';
$req = false;
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_' . $key ) ) {
ewwwio_debug_message( "defining EWWW_IMAGE_OPTIMIZER_$key" );
define( 'EWWW_IMAGE_OPTIMIZER_' . $key, $req );
}
break;
case 'GIFSICLE':
if ( ! $skip['gifsicle'] && empty( $req ) ) {
$missing[] = 'gifsicle';
$req = false;
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_' . $key ) ) {
ewwwio_debug_message( "defining EWWW_IMAGE_OPTIMIZER_$key" );
define( 'EWWW_IMAGE_OPTIMIZER_' . $key, $req );
}
break;
case 'PNGOUT':
if ( ! $skip['pngout'] && empty( $req ) ) {
$missing[] = 'pngout';
$req = false;
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_' . $key ) ) {
ewwwio_debug_message( "defining EWWW_IMAGE_OPTIMIZER_$key" );
define( 'EWWW_IMAGE_OPTIMIZER_' . $key, $req );
}
break;
case 'PNGQUANT':
if ( ! $skip['pngquant'] && empty( $req ) ) {
$missing[] = 'pngquant';
$req = false;
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_' . $key ) ) {
ewwwio_debug_message( "defining EWWW_IMAGE_OPTIMIZER_$key" );
define( 'EWWW_IMAGE_OPTIMIZER_' . $key, $req );
}
break;
case 'WEBP':
if ( ! $skip['webp'] && empty( $req ) ) {
$missing[] = 'webp';
$req = false;
}
if ( ! defined( 'EWWW_IMAGE_OPTIMIZER_' . $key ) ) {
ewwwio_debug_message( "defining EWWW_IMAGE_OPTIMIZER_$key" );
define( 'EWWW_IMAGE_OPTIMIZER_' . $key, $req );
}
break;
}
}
// expand the missing utilities list for use in the error message
$msg = implode( ', ', $missing );
// if there is a message, display the warning
if( ! empty( $msg ) ){
$settings_page = '/?settings=1';
if ( ! is_dir( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) {
ewww_image_optimizer_tool_folder_notice();
} elseif ( ! is_writable( EWWW_IMAGE_OPTIMIZER_TOOL_PATH ) ) {
ewww_image_optimizer_tool_folder_permissions_notice();
}
if ( ! defined( 'EWWW_CLI' ) ) {
echo "<div id='ewww-image-optimizer-warning-opt-missing' class='error'><p>" . wp_kses( sprintf(__('EWWW Image Optimizer uses %1$s, %2$s, %3$s, %4$s, %5$s, and %6$s. You are missing: %7$s. Please install via the %8$s or the %9$s.', EWWW_IMAGE_OPTIMIZER_DOMAIN), "<a href='http://jpegclub.org/jpegtran/'>jpegtran</a>", "<a href='http://optipng.sourceforge.net/'>optipng</a>", "<a href='http://advsys.net/ken/utils.htm'>pngout</a>", "<a href='http://pngquant.org/'>pngquant</a>", "<a href='http://www.lcdf.org/gifsicle/'>gifsicle</a>", "<a href='https://developers.google.com/speed/webp/'>cwebp</a>", $msg, "<a href='$settings_page'>" . __('Settings Page', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "</a>", "<a href='https://wordpress.org/extend/plugins/ewww-image-optimizer/installation/'>" . __('Installation Instructions', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "</a>"), array( 'a' => array( 'href' => array() ) ) ) . "</p></div>";
} else {
EWWWIO_CLI::error( sprintf( __( 'EWWW Image Optimizer uses %1$s, %2$s, %3$s, %4$s, %5$s, and %6$s. You are missing: %7$s.', EWWW_IMAGE_OPTIMIZER_DOMAIN ), "jpegtran (http://jpegclub.org/jpegtran/)", "optipng (http://optipng.sourceforge.net/)", "pngout (http://advsys.net/ken/utils.htm", "pngquant (http://pngquant.org/)", "gifsicle (http://www.lcdf.org/gifsicle/)", "cwebp (https://developers.google.com/speed/webp/)", $msg ) );
}
ewwwio_memory( __FUNCTION__ );
}
}
// function to check if exec() is disabled
function ewww_image_optimizer_exec_check() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$disabled = ini_get( 'disable_functions' );
ewwwio_debug_message( "disable_functions: $disabled" );
$suhosin_disabled = ini_get( 'suhosin.executor.func.blacklist' );
ewwwio_debug_message( "suhosin_blacklist: $suhosin_disabled" );
if ( preg_match( '/([\s,]+exec|^exec)/', $disabled ) || preg_match( '/([\s,]+exec|^exec)/', $suhosin_disabled ) ) {
ewwwio_memory( __FUNCTION__ );
return true;
} else {
ewwwio_memory( __FUNCTION__ );
return false;
}
}
// function to check if safe mode is on
function ewww_image_optimizer_safemode_check() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$safe_mode = ini_get( 'safe_mode' );
ewwwio_debug_message( "safe_mode = $safe_mode" );
switch ( strtolower( $safe_mode ) ) {
case 'off':
ewwwio_memory( __FUNCTION__ );
return false;
case 'on':
case true:
ewwwio_memory( __FUNCTION__ );
return true;
default:
ewwwio_memory( __FUNCTION__ );
return false;
}
}
// If the utitilites are in the content folder, we use that. Otherwise, we check system paths. We also do a basic check to make sure we weren't given a malicious path.
function ewww_image_optimizer_path_check( $j = true, $o = true, $g = true, $p = true, $q = true, $w = true) {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$jpegtran = false;
$optipng = false;
$gifsicle = false;
$pngout = false;
$pngquant = false;
$webp = false;
if ( EWWW_IMAGE_OPTIMIZER_NOEXEC ) {
return array(
'JPEGTRAN' => false,
'OPTIPNG' => false,
'GIFSICLE' => false,
'PNGOUT' => false,
'PNGQUANT' => false,
'WEBP' => false,
);
}
if ( 'WINNT' == PHP_OS ) {
if ( $j ) {
$jpegtran = ewww_image_optimizer_find_win_binary( 'jpegtran', 'j' );
}
if ( $o ) {
$optipng = ewww_image_optimizer_find_win_binary( 'optipng', 'o' );
}
if ( $g ) {
$gifsicle = ewww_image_optimizer_find_win_binary( 'gifsicle', 'g' );
}
if ( $p ) {
$pngout = ewww_image_optimizer_find_win_binary( 'pngout', 'p' );
}
if ( $q ) {
$pngquant = ewww_image_optimizer_find_win_binary( 'pngquant', 'q' );
}
if ( $w ) {
$webp = ewww_image_optimizer_find_win_binary( 'cwebp', 'w' );
}
} else {
if ( $j ) {
$jpegtran = ewww_image_optimizer_find_nix_binary( 'jpegtran', 'j' );
if ( ! $jpegtran ) {
$jpegtran = ewww_image_optimizer_find_nix_binary( 'jpegtran', 'jb' );
}
}
if ( $o ) {
$optipng = ewww_image_optimizer_find_nix_binary( 'optipng', 'o' );
if ( ! $optipng ) {
$optipng = ewww_image_optimizer_find_nix_binary( 'optipng', 'ob' );
}
}
if ( $g ) {
$gifsicle = ewww_image_optimizer_find_nix_binary( 'gifsicle', 'g' );
if ( ! $gifsicle ) {
$gifsicle = ewww_image_optimizer_find_nix_binary( 'gifsicle', 'gb' );
}
}
if ( $p ) {
// pngout is special and has a dynamic and static binary to check
$pngout = ewww_image_optimizer_find_nix_binary( 'pngout-static', 'p' );
if ( ! $pngout ) {
$pngout = ewww_image_optimizer_find_nix_binary( 'pngout', 'p' );
}
if ( ! $pngout ) {
$pngout = ewww_image_optimizer_find_nix_binary( 'pngout-static', 'pb' );
}
if ( ! $pngout ) {
$pngout = ewww_image_optimizer_find_nix_binary( 'pngout', 'pb' );
}
}
if ( $q ) {
$pngquant = ewww_image_optimizer_find_nix_binary( 'pngquant', 'q' );
if ( ! $pngquant ) {
$pngquant = ewww_image_optimizer_find_nix_binary( 'pngquant', 'qb' );
}
}
if ( $w ) {
$webp = ewww_image_optimizer_find_nix_binary( 'cwebp', 'w' );
if ( ! $webp ) {
$webp = ewww_image_optimizer_find_nix_binary( 'cwebp', 'wb' );
}
}
}
if ( $jpegtran ) ewwwio_debug_message( "using: $jpegtran" );
if ( $optipng ) ewwwio_debug_message( "using: $optipng" );
if ( $gifsicle ) ewwwio_debug_message( "using: $gifsicle" );
if ( $pngout ) ewwwio_debug_message( "using: $pngout" );
if ( $pngquant ) ewwwio_debug_message( "using: $pngquant" );
if ( $webp ) ewwwio_debug_message( "using: $webp" );
ewwwio_memory( __FUNCTION__ );
return array(
'JPEGTRAN' => $jpegtran,
'OPTIPNG' => $optipng,
'GIFSICLE' => $gifsicle,
'PNGOUT' => $pngout,
'PNGQUANT' => $pngquant,
'WEBP' => $webp,
);
}
// checks the binary at $path against a list of valid sha256 checksums (formerly md5sums)
function ewww_image_optimizer_md5check( $path ) {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$binary_sum = hash_file( 'sha256', $path );
ewwwio_debug_message( "$path: $binary_sum" );
$valid_sums = array(
'463de9ba684d54d27185cb6487a0b22b7571a87419abde4dee72c9b107f23315', // jpegtran-mac 9, EWWW 1.3.0
'0b94f82e3d740d1853281e9aaee5cc7122c27fd63da9d6d62ed3398997cbed1e', // jpegtran-linux 9, EWWW 1.4.0
'f5f079bfe6f3f48c17738679292f35cdee44afe8f8413cdbc4f555cee7de4173', // jpegtran-linux64 9, EWWW 1.4.0
'ec71f638d2101f08fab66f4d139746d4042352bc75d55bd093aa446081892e0c', // jpegtran-fbsd 9, EWWW 1.4.0
'356532227fce51fcb9df29f143ab9d202fbd40f18e2b8234aee95937c93bd67e', // jpegtran-fbsd64 9, EWWW 1.4.0
'7be857837764dff4f0d7d2c5d546bf4d2573af7f326ced908ac229d60fd054c6', // jpegtran.exe 9, EWWW 1.4.0
'bce5205bb240532c01273b5442a44244a8a27a74fb47e2ce467c18b91fabea6b', // jpegtran-sol 9, EWWW 1.7.4
'cadc7be4688632bf2860562a1596f1b2b54b9a9c8b27df7ecabca49b1dcd8a5f', // jpegtran-fbsd 9a, EWWW 2.0.0
'bab4aa853c143534503464eeb35893d16799cf859ff22f9a4e62aa383f4fc99c', // jpegtran-fbsd64 9a, EWWW 2.0.0
'deb7e0f579fac767196611aa110052864e3093017970ff74de709b41e265e8b1', // jpegtran-linux 9a, EWWW 2.0.0
'b991fde396ebcc0e4f805df44b1797fe369f7f19e9392684dd4052e3f23c441e', // jpegtran-linux64 9a, EWWW 2.0.0
'436835bd42b27d2f05440bc5dc5174f2a896d38f8a550d96704d39969951d9ac', // jpegtran-mac 9a, EWWW 2.0.0
'bdf3c6b6cb16287a3f62e7cde8f69f8bda5d310abca28e00068c526f9f37cc89', // jpegtran-sol 9a, EWWW 2.0.0
'3c2746d0b1ae150b13b767715af45ff601e394c01ada929cbe16e6dcd18fb199', // jpegtran.exe 9a, EWWW 2.0.0
'8e11f7df5735b36d3ecc95c84b0e355355a766d3ccafbf751bcf343a8952432c', // jpegtran-fbsd 9b, EWWW 2.6.0
'21d8046e07cb298dfd2f3b1e321c67c378a4d35fa8adc3521acc42b5b8088d64', // jpegtran-linux 9b, EWWW 2.6.0
'4d1a1c601d291f96dc03ea7e42ab9137a17f93ebc391353db65b4e32c1e9fbdb', // jpegtran-mac 9b, EWWW 2.6.0
'7e8719703d31e1ab9bf2b2ad7ab633649012ab6aae46ea40462365b9c00876d5', // jpegtran-sol 9b, EWWW 2.6.0
'9767f05ae1b59d4fea25a73b276dcd1245f5281b53386dc03784539265bffbea', // jpegtran.exe 9b, EWWW 2.6.0
'6deddb5562ac13ffc3e46a0af79b592e92fb4553c5df294b6e0052bc890fd0e3', // optipng-linux 0.7.4, EWWW 1.2.0
'51df81fa8c765efbe0aa4c1cf5293e25e7e2e7f6962f5161615239c54aec4c01', // optipng-linux 0.7.4, EWWW 1.3.0
'7a56cca66471ce2b6cdff4460db0d75258ef05de8da1eda0448e4d4ad9ae252f', // optipng-mac 0.7.4, EWWW 1.3.0
'2f9140cdc3ef1f7687baa710f0bba84c5f7f11e3f62c3ce43124e23b849ac5ff', // optipng-linux 0.7.4, EWWW 1.3.7
'5d59467363c457bf743f4df121c365dd43365357f1cdea5f3752a7ca1b3e315a', // optipng-fbsd 0.7.4, EWWW 1.4.0
'1af8077958a88a3064a71903841f901179e27fe137774085565619fb199c653a', // optipng.exe 0.7.4, EWWW 1.4.0
'f692fef395b8689de033b9f2ce80c867c8a229c52e948df733377e20b62773a9', // optipng-sol 0.7.4, EWWW 1.7.4
'e17d327cd89ab34eff7f994806fe9f2c124d6cc6cd309fa4c3911d5ce90312c9', // optipng-fbsd 0.7.5, EWWW 2.0.0
'd263ecfb5b29ed08920e26cf604a86d3484daee5b80605e445cf97aa14d8aebc', // optipng-linux 0.7.5, EWWW 2.0.0
'6f15cb2e8d25e51037efa7bcec7499c96eb11e576536a478edfee500207655ae', // optipng-mac 0.7.5, EWWW 2.0.0
'1d2de40b009f16e9c709f9b0c15a47abb8da57668a918ac9a0723ddc6de6c30a', // optipng-sol 0.7.5, EWWW 2.0.0
'fad3a0fd95706d53576f72593bf13d3e31d1c896c852bfd5b9ba602eca0bd2b6', // optipng.exe 0.7.5, EWWW 2.0.0
'9d60eaeb9dc5167a57a5f3af236d56b4149d1043b543f2faa38a0936fa6b54b2', // optipng-fbsd 0.7.6, EWWW 2.8.0
'853ca5936a2dd92a17b3518fd55db6be35e1b2bebfabca3949c34700072e08b8', // optipng-linux 0.7.6, EWWW 2.8.0
'd4f11e96733aed64a72e744843dcd0929e144a7fc97f40d405a034a72eb9bbc6', // optipng-mac 0.7.6, EWWW 2.8.0
'1ed9343194cfca0a1c32677c974192746adfd48cb4cea6a2df668452df0e68f7', // optipng-sol 0.7.6, EWWW 2.8.0
'03b86ce2c08e2cc78d76d3d3dd173986b498b055c3c19e13a97a7c3c674772c6', // optipng.exe 0.7.6, EWWW 2.8.0
'a2292c0085863a65c99cb41ff8418ce63033e162906df72e8fdde52f0633579b', // gifsicle linux 1.67, EWWW 1.2.0
'd7f9609b6fd0000b2eaad2bd0c3cb85476988b18705762e915bda3f2e6007801', // gifsicle-linux 1.68, EWWW 1.3.0
'204a839a50367adb8cd23fae5d1913a5ca8b41307f054156ed152748d3e7934d', // gifsicle-linux 1.68, EWWW 1.3.7
'23e208099fa7ce75a3f98144190d6362d69b90c6f0a534ffa45dbbf789f7d99c', // gifsicle-mac 1.68, EWWW 1.3.0
'8b08243a7cc655512a03403f6c3814176e28bbd140df7c059bd321a9a0151c18', // gifsicle-fbsd 1.70, EWWW 1.4.0
'fd074673967ee9d387208f047c081a6331663b4076f4a6a608d6f646622af718', // gifsicle-linux 1.70, EWWW 1.4.0 - 1.7.4
'bc32a390e86d2d8f40e970b2dc059015b51afe26794d92a936c1fe7216db805d', // gifsicle-mac 1.70, EWWW 1.4.0
'41e67a35cd178f781b5224d196185e4243e6c2b3bece43277130fe07cdda402f', // gifsicle-sol 1.70, EWWW 1.7.4
'3c6d9fabd1ea1014b8f58063dd00a653980c06bc1b45e96a47d866247263a1e1', // gifsicle.exe 1.70, EWWW 1.4.0
'decba7a95b637bee53847af680fd37bde8bd568528412c514b7bd794056fd4ff', // gifsicle-fbsd 1.78, EWWW 1.7.5
'c28e5e4b5344f77f415973d013e4cb393fc550e8de44117b090d534e98b30d1c', // gifsicle-linux 1.78, EWWW 1.7.5 - 1.9.3
'fc2de863e8579b0d540003300e918cee450bc8e026018c631dffc0ed851a8c1c', // gifsicle-mac 1.78, EWWW 1.7.5
'74d011ee1b6d9fe6d5d8bdb4cd17db0c5987fa6e3d495b42439cd70b0763c07a', // gifsicle-sol 1.78, EWWW 1.7.5
'7c10da38f4afb28373779d40a30710aa9fb369e82f7f29363554bea965d132df', // gifsicle.exe 1.78, EWWW 1.7.5
'e75acedd0725fba64ee72855b796cdfa8dac9959d63e89a9e0e5ba059ae013c2', // gifsicle-fbsd 1.84, EWWW 2.0.0
'a4f0f21bc4bea51f5d304fe944262c12f671d70a3e5f688061da7bb036e84ff8', // gifsicle-linux 1.84, EWWW 2.0.0 - 2.4.3
'5f4176b3fe69f975563d2ce7e76615ab558f5f1839b9bfa6f6de1b3c3fa11c02', // gifsicle-mac 1.84, EWWW 2.0.0
'9f0027bed22d4be60012488ab726c3a131d9f3e1e276e9400c578173347a9a48', // gifsicle-sol 1.84, EWWW 2.0.0
'72f0077e8591292d09efee09a181458b34fb3c0e9a6ac7e8e11cec574bf619ac', // gifsicle.exe 1.84, EWWW 2.0.0
'c64936b429e46b6a75339df00eb8daa39d335844c906fa16d4d0af481851e91e', // gifsicle-fbsd 1.87, EWWW 2.4.4
'deea065a91c8429edecf42ccef78636065f7ae0dad867df7696128c6711e4735', // gifsicle-linux 1.87, EWWW 2.4.4
'2e0d8b7413173555bbec6e019c3cd7c55f7d582a017a0af7b14cfd24a6921f51', // gifsicle-mac 1.87, EWWW 2.4.4
'3966e01474601059c6a13aefbe4f313c6cb6d49c799f7850966950892a9ab45a', // gifsicle-sol 1.87, EWWW 2.4.4
'40b86b2ea6642f4c921152923af1e631922b624f7d23189f53c659506c7179b5', // gifsicle.exe 1.87, EWWW 2.4.4
'3da9e1a764a459d78dc1468ba60d882ff042050a86f82d895777b172b50f2f19', // gifsicle.exe 1.87, EWWW 2.4.5
'bdea95497d6e60aae8938cae8e999ef74a255ad603531bf523dcdb531f61fc8f', // 20110722-bsd/i686/pngout
'57c09b3ebd7d4623d16f6056efd7951e8f98e2362a27993a7d865af677875c00', // 20110722-bsd-static/i686/pngout-static
'17960599ca28a61aeb883a68b2eb52c513b730a410a0db75a7c2c22e0a3f925a', // 20110722-linux/i686/pngout
'689f68bcbf39e68cdf0f0a350d59c0acafdbcf7ff122e25b5a8b58ed3a8f18ef', // 20110722-linux/x86_64/pngout
'2028eea62f04b074b7693e5ce625c848ff6521206782616c893ca93637644a51', // 20110722-linux-static/i686/pngout-static
'7d071c3a6ac9c4e8077f029dbba1cde49008d38adf897401e951f9c2e7ce8bb1', // 20110722-linux-static/x86_64/pngout-static
'89c510b551718d263433bb37e67364cab582a71bf7f5558213a121bb86cb5f98', // 20110722-mac/pngout
'e383a5293e3b1934c87367799f6eaefbd6714cfa004262f273fb7f2f4d15930b', // 20130221-bsd/i686/pngout
'd2b70c882be527543818d84552cc4e6faf40da3cec45286e5c36ed73e9611b7b', // 20130221-bsd/amd64/pngout
'bc08e1f883ba92a04e44fe4e756e1afc3b77fc1d072519adff6ce2f7787109bb', // 20130221-bsd-static/i686/pngout-static
'860779de32c1fe34f211da036471d6e4ecc0d35527727d476f29623785cf6f82', // 20130221-bsd-static/amd64/pngout-static
'edd8e6173bf3b862c6c40c4b5aad6514169a58ee9b0b34d8c37e475005889592', // 20130221-linux/i686/pngout
'f6a053d1c03b69e2ac4435aaa5b5e13ea5169d9a262286595f9f455d8da5caf1', // 20130221-linux/x86_64/pngout
'9591669b3984a19f0aab3a8e8fad98c5274b3c30daecf46b35d22df934546618', // 20130221-linux-static/i686/pngout-static
'25d2aab99796c26f1e9cf1f2a9713920be40ce1b99e02c2c50b67fa6e3da06be', // 20130221-linux-static/x86_64/pngout-static
'57fd225f3ae921309ee4570f1970629d31cb02946983405d1b1f648aeaab30a1', // 20130221-mac/pngout
'3dfeb927e96853d2470350b0a916dc263cd4ebe878b402773dba105a6644e796', // 20150319-bsd/i686/pngout
'60a2848c79551a3e79ffcea7f54964767e25bb05c2255b0ea6a1eb03605661d2', // 20150319-bsd/amd64/pngout
'52dd45f15221f2ff30739151f30aedb5e3377dd6bccd350d4bce9429d7fa5e8b', // 20150319-bsd-static/i686/pngout-static
'12ffa454936e1d35dc96749208d740695fea26d07267b6a17b9890db0f156026', // 20150319-bsd-static/amd64/pngout-static
'5b97595c2b4e5f47ba797b105b3b56dbb769437bdc9092f07f6c57bc457ee667', // 20150319-linux/i686/pngout
'a496985d02c785c05f21f653fc4d61a5a171a68f691119448bc3c3152246f0d7', // 20150319-linux/x86_64/pngout
'b6641cb01b684c42e40076b91f98485dd115f6200d3f0baf989f1a4ae43c603a', // 20150319-linux-static/i686/pngout-static
'2b8245fe21a648101b8e7399a9dfcc4cf42a39dafa7aab673a7c47901bf82e4a', // 20150319-linux-static/x86_64/pngout-static
'12afd90e04387d4c3be985042c1eada89e0c4504f84c0b4739c459c7b3831774', // 20150319-mac/pngout
'843f0be42e86680c1663c4ef58eb0677ace15fc29ab23897c83f4b7e5af3ef36', // 20150319-windows/pngout.exe 20150319
'aa3993937455094c0f66ac77d60bf53be441fdf8f14618520c2af68f2253085d', // 20150920-mac/pngout
'8417d5d60bc66442ecc666e31ec7b9e1b7c55f48291e74b4b81f35703e2aef2e', // pngquant-fbsd 2.0.2, EWWW 1.8.3
'78668c38d0be70764b18f3f4e0ea2b647df2ae87cedb2216d0ef69c8c55b688a', // pngquant-linux 2.0.2, EWWW 1.8.3
'7df1b7f6ed73a189083dd931fb3380d236d34790318f00233b59c8f26f90665f', // pngquant-mac 2.0.2, EWWW 1.8.3
'56d2c6212eb595f5eab8a7469e56fa8d3d0e6ffc231aef27742134fba4a39298', // pngquant-sol 2.0.2, EWWW 1.8.3
'd3851c962cd59d74a35174bf3ce71d876dfcd8bdf76f81cd428b2ab7e53c0515', // pngquant.exe 2.0.2, EWWW 1.8.3
'0ee6f1dbf4fa168b11ce60860e5700ca0e5125323a43540a78c76644835abc84', // pngquant-fbsd 2.3.0, EWWW 2.0.0
'85d8a70930a554f50181a1d061577cf67ef2e76e2cbd5bcb1b7f006064ff1444', // pngquant-linux 2.3.0, EWWW 2.0.0
'a807f769922fdad0ba07307c548df8cf8eeced649d04237d13dfc95757161459', // pngquant-mac 2.3.0, EWWW 2.0.0
'cf2cc40274c438b35e93bd0346c2a6d871bd7a7bdd90c52f4e79f369cb8ded74', // pngquant-sol 2.3.0, EWWW 2.0.0
'7454aba77b1a2b63a42d8a5870d3c2d733c7efb2d828643d5e64784af1f65f2a', // pngquant.exe 2.3.0, EWWW 2.0.0
'6287f1bb7179c7b6d71a41112222347ed97b6eae4e79b180d7e1e332a4bde3e2', // pngquant-fbsd 2.5.2, EWWW 2.5.4
'fcfe4d3a602e7b491f4126a2707144f5f9cc9359d13f443575d7ea6a74e85ddb', // pngquant-linux 2.5.2, EWWW 2.5.4
'35794819a35e949dc0c0d6f90d0bb675791fa9bc3f405eb19f48ea31bb6456a8', // pngquant-mac 2.5.2, EWWW 2.5.4
'c242586c70d83af544334f1846b838ef68c6ab4fc247b2cff9ad4b714f825866', // pngquant-sol 2.5.2, EWWW 2.5.4
'ad79d9b3395d41404b28362972bd68db3c58d5be5f063884df3a595fc38c6a98', // pngquant.exe 2.5.2, EWWW 2.5.4
'bf0e12f996802dc114a864e5150647ce41089a5a2b5e36c3a270ac848b655c26', // cwebp-fbsd 0.4.1, EWWW 2.0.0
'5349646072c3ef5f8b4588bbee8635e882c245439e2d86b863f04b7e27f4fafe', // cwebp-fbsd64 0.4.1, EWWW 2.0.0
'3044c02cfef53f4361f7b2db49c5679f894ed346f665d4c8d91c6675d84dbf67', // cwebp-linux6 0.4.1, EWWW 2.0.0
'c9899718a5e272a082fd7c9d93d7c23d8a50f49d1b739a9aa1ef404f78cd7baf', // cwebp-linux664 0.4.1, EWWW 2.0.0
'2a0dff5c80fd5fa170babd0c0571f4499606f8d09bf820938da41a311d6dec6f', // cwebp-linux8 0.4.1, EWWW 2.0.0
'c1dfbbad935e31bde2e517dff43911c0651a8e5f78c022a252a864278065ae11', // cwebp-linux864 0.4.1, EWWW 2.0.0
'bae23f1614d391b136e8618a21590e4a9f0614c8716b86a6a7067527e9950d87', // cwebp-mac7 0.4.1, EWWW 2.0.0
'bc72654fead42c6d4fd841cecdee6ccbf21b2407292593ec982f31d39b566955', // cwebp-mac8 0.4.1, EWWW 2.0.0
'7fa005dc6a18563e4f6574bec83c92cabf786d8ee845503d80fa52e370dc4903', // cwebp-sol 0.4.1, EWWW 2.0.0
'6486779c8e1e9cc7c63ae03c416fc6d5dc7598c58a6cddbe9a41e70d804410f9', // cwebp.exe 0.4.1, EWWW 2.0.0
'814a168f190c4712df231b1f7d1910185ef823953b54c9fb8b354f415172a371', // cwebp-fbsd64 0.4.3, EWWW 2.4.4
'0f867ea2db0db895612bd15916ad31bc71c89ef2ad74552b7e878df09b843da5', // cwebp-linux6 0.4.3, EWWW 2.4.4
'179c7b9a2fbc1af542b3653bff58ca4dcb35bebf346687c12bb667ab49e9e21b', // cwebp-linux664 0.4.3, EWWW 2.4.4
'212e59654bbb6147ee8a554bf8eb7b5c11f75b9ef14ac3e6ee92ad726a47339a', // cwebp-linux8 0.4.3, EWWW 2.4.4
'b491509221f7c97e8dcc3bdd6f7fc201f40bc93062618bfba06f84aac7704558', // cwebp-linux864 0.4.3, EWWW 2.4.4
'2e8c5f53f44656ec80f11cca3c985200f502c88ea47bb34063e09eb6313e04a6', // cwebp-mac8 0.4.3, EWWW 2.4.4
'963a09a2c45ba036291b32ecb665541e40c232bb0f2474810ac2a9ddf8837fe4', // cwebp-mac9 0.4.3, EWWW 2.4.4
'2642d98bb75bc2fd2d969ba1d27b8628fd7fa73a7a204ed8f71a65e124abcac0', // cwebp-sol 0.4.3, EWWW 2.4.4
'64cd62e33201b0d14ec4823b64d93f92825f2e8f5239726f5b00ed9ff944a581', // cwebp.exe 0.4.3, EWWW 2.4.4
'7d7329671d445924dafcaacee7f2db6f4ce33567ffca41aa5b5818ebff806bc5', // cwebp-fbsd64 0.4.4, EWWW 2.5.4
'f1a48031d0ab602080f5646695ce8a3e84d5470f1be99d1b8fc20aded9c7839b', // cwebp-linux6 0.4.4, EWWW 2.5.4
'b2bef90b62d80b35d4c5a41f793454e95e5159bf0aec2e4bd8c19fc3de3556bd', // cwebp-linux664 0.4.4, EWWW 2.5.4
'd3c358524efd50f6e078362733870229ca1e1db8885580b6814c2535b4d20612', // cwebp-linux8 0.4.4, EWWW 2.5.4
'271deeec579c252e364495addad03d9c1f3248c2177a01638002b25eee787ded', // cwebp-linux864 0.4.4, EWWW 2.5.4
'379e2b95e20dd33f4667c134099df358e178f6a6bf32f3a5b6b78bbb6950b4b5', // cwebp-mac9 0.4.4, EWWW 2.5.4
'118ea3f0bcdcce6128d64e34159c93c3324cb038c9e5a51efaf530ea52af7070', // cwebp-sol 0.4.4, EWWW 2.5.4
'43941c1d7169e66fb1fd62a1950286b230d3e5bec3bbb14fdb4ac091ca7a0f9f', // cwebp.exe 0.4.4, EWWW 2.5.4
'26d5d88dee2993d1d0e16f5e60318cd8adec485614facd6c7f9c22c71eb7b2e5', // cwebp-fbsd 0.5.0 EWWW 2.6.0
'60b1738d6502691227a46658cd7656b4a52702680f169e8e04d72077e967aeed', // cwebp-linux 0.5.0, EWWW 2.6.0
'276a0221a4c978825903572c2b68b3010399375d6b9dc7429286caf625cae95a', // cwebp-mac9 0.5.0, EWWW 2.6.0
'be3e81ec7267e7878ddd4ee01df1553966952f74bbfd30a5523d12d53f019ecb', // cwebp-sol 0.5.0, EWWW 2.6.0
'b41123ec06f21765f50ec1b017839f99ab4f28497d87da722817a6023e4a3b32', // cwebp.exe 0.5.0, EWWW 2.6.0
'f0547a6219c5c05d0af29c5e411e054b9d795567f4ae2e27893815af9383c60f', // cwebp-fbsd 0.5.1, EWWW 2.9.9
'9eaf670bb2d567421c7e2918112dc00406c60f008b120f648cf0bdba73ee9b6b', // cwebp-linux 0.5.1, EWWW 2.9.9
'1202ea932b315913d3736460dd3d50bc5b251b7a0a8f0468c63144ba427679c2', // cwebp-mac9 0.5.1, EWWW 2.9.9
'27ba0abce52e74744f6235fcde9b153b5052b9c15cd78e74feffaea9dafcc178', // cwebp-sol 0.5.1, EWWW 2.9.9
'b02864989f0a1a263caa796c5b8caf18c1f774ed0ba08a9350e8820459875f51', // cwebp.exe 0.5.1, EWWW 2.9.9
);
foreach ( $valid_sums as $checksum ) {
if ( $checksum === $binary_sum ) {
ewwwio_debug_message( 'checksum verified, binary is intact' );
ewwwio_memory( __FUNCTION__ );
return TRUE;
}
}
ewwwio_memory( __FUNCTION__ );
return FALSE;
}
// check the mimetype of the given file ($path) with various methods
// valid values for $type are 'b' for binary or 'i' for image
function ewww_image_optimizer_mimetype( $path, $case ) {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
ewwwio_debug_message( "testing mimetype: $path" );
$type = false;
if ( $case === 'i' && preg_match( '/^RIFF.+WEBPVP8/', file_get_contents( $path, NULL, NULL, 0, 16 ) ) ) {
return 'image/webp';
}
if ( $case === 'i' && strpos( $path, 's3' ) === 0 ) {
$pathextension = strtolower( pathinfo( $path, PATHINFO_EXTENSION ) );
switch ( $pathextension ) {
case 'jpg':
case 'jpeg':
case 'jpe':
ewwwio_debug_message( 's3 type: image/jpeg' );
return 'image/jpeg';
case 'png':
ewwwio_debug_message( 's3 type: image/png' );
return 'image/png';
case 'gif':
ewwwio_debug_message( 's3 type: image/gif' );
return 'image/gif';
case 'pdf':
ewwwio_debug_message( 's3 type: application/pdf' );
return 'application/pdf';
}
}
if ( function_exists( 'finfo_file' ) && defined( 'FILEINFO_MIME' ) ) {
// create a finfo resource
$finfo = finfo_open( FILEINFO_MIME );
// retrieve the mimetype
$type = explode( ';', finfo_file( $finfo, $path ) );
$type = $type[0];
finfo_close( $finfo );
ewwwio_debug_message( "finfo_file: $type" );
}
// see if we can use the getimagesize function
if ( empty( $type ) && function_exists( 'getimagesize' ) && $case === 'i' ) {
// run getimagesize on the file
$type = getimagesize($path);
// make sure we have results
if(false !== $type){
// store the mime-type
$type = $type['mime'];
}
ewwwio_debug_message( "getimagesize: $type" );
}
// see if we can use mime_content_type
if ( empty( $type ) && function_exists( 'mime_content_type' ) ) {
// retrieve and store the mime-type
$type = mime_content_type( $path );
ewwwio_debug_message( "mime_content_type: $type" );
}
// if nothing else has worked, try the 'file' command
if ( ( empty( $type ) || $type != 'application/x-executable' ) && $case === 'b' ) {
// find the 'file' command
if ( $file = ewww_image_optimizer_find_nix_binary( 'file', 'f' ) ) {
// run 'file' on the file in question
exec( "$file $path", $filetype );
ewwwio_debug_message( "file command: {$filetype[0]}" );
// if we've found a proper binary
if ( ( strpos( $filetype[0], 'ELF' ) && strpos( $filetype[0], 'executable' ) ) || strpos( $filetype[0], 'Mach-O universal binary' ) ) {
$type = 'application/x-executable';
}
}
}
// if we are dealing with a binary, and found an executable
if ( $case === 'b' && preg_match( '/executable|octet-stream/', $type ) ) {
ewwwio_memory( __FUNCTION__ );
return $type;
// otherwise, if we are dealing with an image
} elseif ( $case == 'i' ) {
ewwwio_memory( __FUNCTION__ );
return $type;
// if all else fails, bail
} else {
ewwwio_debug_message( 'no mime functions or not a binary' );
ewwwio_memory( __FUNCTION__ );
return false;
}
}
// escape any spaces in the filename, not sure any more than that is necessary for unixy systems
function ewww_image_optimizer_escapeshellcmd( $path ) {
return ( preg_replace( '/ /', '\ ', $path ) );
}
// test the given path ($path) to see if it returns a valid version string
// returns: version string if found, FALSE if not
function ewww_image_optimizer_tool_found( $path, $tool ) {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
ewwwio_debug_message( "testing case: $tool at $path" );
// '*b' cases are 'blind' testing in case we can't get at the version string, but the binaries are actually working, we run a test compression, and compare the results with what they should be
switch( $tool ) {
case 'j': // jpegtran
exec( $path . ' -v ' . EWWW_IMAGE_OPTIMIZER_IMAGES_PATH . 'sample.jpg 2>&1', $jpegtran_version );
if ( ! empty( $jpegtran_version ) ) ewwwio_debug_message( "$path: {$jpegtran_version[0]}" );
foreach ( $jpegtran_version as $jout ) {
if ( preg_match( '/Independent JPEG Group/', $jout ) ) {
ewwwio_debug_message( 'optimizer found' );
return $jout;
}
}
break;
case 'jb':
$upload_dir = wp_upload_dir();
$testjpg = trailingslashit( $upload_dir['basedir'] ) . 'testopti.jpg';
exec( $path . ' -copy none -optimize -outfile ' . ewww_image_optimizer_escapeshellarg( $testjpg ) . ' ' . ewww_image_optimizer_escapeshellarg( EWWW_IMAGE_OPTIMIZER_IMAGES_PATH . 'testorig.jpg' ) );
$testjpgsize = ewww_image_optimizer_filesize( $testjpg );
ewwwio_debug_message( "blind testing jpegtran, is $testjpgsize smaller than 5700?" );
if ( $testjpgsize ) {
unlink( $testjpg );
}
if ( 0 < $testjpgsize && $testjpgsize < 5700 ) {
ewwwio_debug_message( 'optimizer found' );
return esc_html__( 'unknown', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ;
}
break;
case 'o': // optipng
exec( $path . ' -v 2>&1', $optipng_version );
if ( ! empty( $optipng_version ) ) ewwwio_debug_message( "$path: {$optipng_version[0]}" );
if ( ! empty( $optipng_version ) && strpos( $optipng_version[0], 'OptiPNG' ) === 0 ) {
ewwwio_debug_message( 'optimizer found' );
return $optipng_version[0];
}
break;
case 'ob':
$upload_dir = wp_upload_dir();
$testpng = trailingslashit( $upload_dir['basedir'] ) . 'testopti.png';
exec( $path . ' -out ' . ewww_image_optimizer_escapeshellarg( $testpng ) . ' -o1 -quiet -strip all ' . ewww_image_optimizer_escapeshellarg( EWWW_IMAGE_OPTIMIZER_IMAGES_PATH . 'testorig.png' ) );
$testpngsize = ewww_image_optimizer_filesize( $testpng );
ewwwio_debug_message( "blind testing optipng, is $testpngsize smaller than 110?" );
if ( $testpngsize ) {
unlink( $testpng );
}
if ( 0 < $testpngsize && $testpngsize < 110 ) {
ewwwio_debug_message( 'optimizer found' );
return esc_html__( 'unknown', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ;
}
break;
case 'g': // gifsicle
exec( $path . ' --version 2>&1', $gifsicle_version );
if ( ! empty( $gifsicle_version ) ) ewwwio_debug_message( "$path: {$gifsicle_version[0]}" );
if ( ! empty( $gifsicle_version ) && strpos( $gifsicle_version[0], 'LCDF Gifsicle' ) === 0 ) {
ewwwio_debug_message( 'optimizer found' );
return $gifsicle_version[0];
}
break;
case 'gb':
$upload_dir = wp_upload_dir();
$testgif = trailingslashit( $upload_dir['basedir'] ) . 'testopti.gif';
exec( $path . ' -O3 -o ' . ewww_image_optimizer_escapeshellarg( $testgif ) . ' ' . ewww_image_optimizer_escapeshellarg( EWWW_IMAGE_OPTIMIZER_IMAGES_PATH . 'testorig.gif' ) );
$testgifsize = ewww_image_optimizer_filesize( $testgif );
ewwwio_debug_message( "blind testing gifsicle, is $testgifsize smaller than 12000?" );
if ( $testgifsize ) {
unlink( $testgif );
}
if ( 0 < $testgifsize && $testgifsize < 12000 ) {
ewwwio_debug_message( 'optimizer found' );
return esc_html__( 'unknown', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ;
}
break;
case 'p': // pngout
exec( "$path 2>&1", $pngout_version );
if ( ! empty( $pngout_version ) ) ewwwio_debug_message( "$path: {$pngout_version[0]}" );
if ( ! empty( $pngout_version ) && strpos( $pngout_version[0], 'PNGOUT' ) === 0 ) {
ewwwio_debug_message( 'optimizer found' );
return $pngout_version[0];
}
break;
case 'pb':
$upload_dir = wp_upload_dir();
$testpng = trailingslashit( $upload_dir['basedir'] ) . 'testopti.png';
exec( $path . ' -s3 -q ' . ewww_image_optimizer_escapeshellarg( EWWW_IMAGE_OPTIMIZER_IMAGES_PATH . 'testorig.png' ) . ' ' . ewww_image_optimizer_escapeshellarg( $testpng ) );
$testpngsize = ewww_image_optimizer_filesize( $testpng );
ewwwio_debug_message( "blind testing pngout, is $testpngsize smaller than 110?" );
if ( $testpngsize ) {
unlink( $testpng );
}
if ( 0 < $testpngsize && $testpngsize < 110 ) {
ewwwio_debug_message( 'optimizer found' );
return esc_html__( 'unknown', EWWW_IMAGE_OPTIMIZER_DOMAIN ) ;
}
break;
case 'q': // pngquant
exec( $path . ' -V 2>&1', $pngquant_version );
if ( ! empty( $pngquant_version ) ) ewwwio_debug_message( "$path: {$pngquant_version[0]}" );
if ( ! empty( $pngquant_version ) && substr( $pngquant_version[0], 0, 3 ) >= 2.0 ) {
ewwwio_debug_message( 'optimizer found' );
return $pngquant_version[0];
}
break;
case 'qb':
$upload_dir = wp_upload_dir();
$testpng = trailingslashit( $upload_dir['basedir'] ) . 'testopti.png';
exec( $path . ' -o ' . ewww_image_optimizer_escapeshellarg( $testpng ) . ' ' . ewww_image_optimizer_escapeshellarg( EWWW_IMAGE_OPTIMIZER_IMAGES_PATH . 'testorig.png' ) );
$testpngsize = ewww_image_optimizer_filesize( $testpng );