1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2014 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Rasmus Lerdorf <rasmus@php.net> |
16 | Marcus Boerger <helly@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #include "php.h"
23 #include <stdio.h>
24 #if HAVE_FCNTL_H
25 #include <fcntl.h>
26 #endif
27 #include "fopen_wrappers.h"
28 #include "ext/standard/fsock.h"
29 #if HAVE_UNISTD_H
30 #include <unistd.h>
31 #endif
32 #include "php_image.h"
33 #ifdef PHP_WIN32
34 #include "win32/php_stdint.h"
35 #endif
36
37 #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
38 #include "zlib.h"
39 #endif
40
41 /* file type markers */
42 PHPAPI const char php_sig_gif[3] = {'G', 'I', 'F'};
43 PHPAPI const char php_sig_psd[4] = {'8', 'B', 'P', 'S'};
44 PHPAPI const char php_sig_bmp[2] = {'B', 'M'};
45 PHPAPI const char php_sig_swf[3] = {'F', 'W', 'S'};
46 PHPAPI const char php_sig_swc[3] = {'C', 'W', 'S'};
47 PHPAPI const char php_sig_jpg[3] = {(char) 0xff, (char) 0xd8, (char) 0xff};
48 PHPAPI const char php_sig_png[8] = {(char) 0x89, (char) 0x50, (char) 0x4e, (char) 0x47,
49 (char) 0x0d, (char) 0x0a, (char) 0x1a, (char) 0x0a};
50 PHPAPI const char php_sig_tif_ii[4] = {'I','I', (char)0x2A, (char)0x00};
51 PHPAPI const char php_sig_tif_mm[4] = {'M','M', (char)0x00, (char)0x2A};
52 PHPAPI const char php_sig_jpc[3] = {(char)0xff, (char)0x4f, (char)0xff};
53 PHPAPI const char php_sig_jp2[12] = {(char)0x00, (char)0x00, (char)0x00, (char)0x0c,
54 (char)0x6a, (char)0x50, (char)0x20, (char)0x20,
55 (char)0x0d, (char)0x0a, (char)0x87, (char)0x0a};
56 PHPAPI const char php_sig_iff[4] = {'F','O','R','M'};
57 PHPAPI const char php_sig_ico[4] = {(char)0x00, (char)0x00, (char)0x01, (char)0x00};
58
59 /* REMEMBER TO ADD MIME-TYPE TO FUNCTION php_image_type_to_mime_type */
60 /* PCX must check first 64bytes and byte 0=0x0a and byte2 < 0x06 */
61
62 /* return info as a struct, to make expansion easier */
63
64 struct gfxinfo {
65 unsigned int width;
66 unsigned int height;
67 unsigned int bits;
68 unsigned int channels;
69 };
70
71 /* {{{ PHP_MINIT_FUNCTION(imagetypes)
72 * Register IMAGETYPE_<xxx> constants used by GetImageSize(), image_type_to_mime_type, ext/exif */
PHP_MINIT_FUNCTION(imagetypes)73 PHP_MINIT_FUNCTION(imagetypes)
74 {
75 REGISTER_LONG_CONSTANT("IMAGETYPE_GIF", IMAGE_FILETYPE_GIF, CONST_CS | CONST_PERSISTENT);
76 REGISTER_LONG_CONSTANT("IMAGETYPE_JPEG", IMAGE_FILETYPE_JPEG, CONST_CS | CONST_PERSISTENT);
77 REGISTER_LONG_CONSTANT("IMAGETYPE_PNG", IMAGE_FILETYPE_PNG, CONST_CS | CONST_PERSISTENT);
78 REGISTER_LONG_CONSTANT("IMAGETYPE_SWF", IMAGE_FILETYPE_SWF, CONST_CS | CONST_PERSISTENT);
79 REGISTER_LONG_CONSTANT("IMAGETYPE_PSD", IMAGE_FILETYPE_PSD, CONST_CS | CONST_PERSISTENT);
80 REGISTER_LONG_CONSTANT("IMAGETYPE_BMP", IMAGE_FILETYPE_BMP, CONST_CS | CONST_PERSISTENT);
81 REGISTER_LONG_CONSTANT("IMAGETYPE_TIFF_II", IMAGE_FILETYPE_TIFF_II, CONST_CS | CONST_PERSISTENT);
82 REGISTER_LONG_CONSTANT("IMAGETYPE_TIFF_MM", IMAGE_FILETYPE_TIFF_MM, CONST_CS | CONST_PERSISTENT);
83 REGISTER_LONG_CONSTANT("IMAGETYPE_JPC", IMAGE_FILETYPE_JPC, CONST_CS | CONST_PERSISTENT);
84 REGISTER_LONG_CONSTANT("IMAGETYPE_JP2", IMAGE_FILETYPE_JP2, CONST_CS | CONST_PERSISTENT);
85 REGISTER_LONG_CONSTANT("IMAGETYPE_JPX", IMAGE_FILETYPE_JPX, CONST_CS | CONST_PERSISTENT);
86 REGISTER_LONG_CONSTANT("IMAGETYPE_JB2", IMAGE_FILETYPE_JB2, CONST_CS | CONST_PERSISTENT);
87 #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
88 REGISTER_LONG_CONSTANT("IMAGETYPE_SWC", IMAGE_FILETYPE_SWC, CONST_CS | CONST_PERSISTENT);
89 #endif
90 REGISTER_LONG_CONSTANT("IMAGETYPE_IFF", IMAGE_FILETYPE_IFF, CONST_CS | CONST_PERSISTENT);
91 REGISTER_LONG_CONSTANT("IMAGETYPE_WBMP", IMAGE_FILETYPE_WBMP, CONST_CS | CONST_PERSISTENT);
92 REGISTER_LONG_CONSTANT("IMAGETYPE_JPEG2000",IMAGE_FILETYPE_JPC, CONST_CS | CONST_PERSISTENT); /* keep alias */
93 REGISTER_LONG_CONSTANT("IMAGETYPE_XBM", IMAGE_FILETYPE_XBM, CONST_CS | CONST_PERSISTENT);
94 REGISTER_LONG_CONSTANT("IMAGETYPE_ICO", IMAGE_FILETYPE_ICO, CONST_CS | CONST_PERSISTENT);
95 REGISTER_LONG_CONSTANT("IMAGETYPE_UNKNOWN", IMAGE_FILETYPE_UNKNOWN, CONST_CS | CONST_PERSISTENT);
96 REGISTER_LONG_CONSTANT("IMAGETYPE_COUNT", IMAGE_FILETYPE_COUNT, CONST_CS | CONST_PERSISTENT);
97 return SUCCESS;
98 }
99 /* }}} */
100
101 /* {{{ php_handle_gif
102 * routine to handle GIF files. If only everything were that easy... ;} */
php_handle_gif(php_stream * stream TSRMLS_DC)103 static struct gfxinfo *php_handle_gif (php_stream * stream TSRMLS_DC)
104 {
105 struct gfxinfo *result = NULL;
106 unsigned char dim[5];
107
108 if (php_stream_seek(stream, 3, SEEK_CUR))
109 return NULL;
110
111 if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
112 return NULL;
113
114 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
115 result->width = (unsigned int)dim[0] | (((unsigned int)dim[1])<<8);
116 result->height = (unsigned int)dim[2] | (((unsigned int)dim[3])<<8);
117 result->bits = dim[4]&0x80 ? ((((unsigned int)dim[4])&0x07) + 1) : 0;
118 result->channels = 3; /* always */
119
120 return result;
121 }
122 /* }}} */
123
124 /* {{{ php_handle_psd
125 */
php_handle_psd(php_stream * stream TSRMLS_DC)126 static struct gfxinfo *php_handle_psd (php_stream * stream TSRMLS_DC)
127 {
128 struct gfxinfo *result = NULL;
129 unsigned char dim[8];
130
131 if (php_stream_seek(stream, 11, SEEK_CUR))
132 return NULL;
133
134 if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
135 return NULL;
136
137 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
138 result->height = (((unsigned int)dim[0]) << 24) + (((unsigned int)dim[1]) << 16) + (((unsigned int)dim[2]) << 8) + ((unsigned int)dim[3]);
139 result->width = (((unsigned int)dim[4]) << 24) + (((unsigned int)dim[5]) << 16) + (((unsigned int)dim[6]) << 8) + ((unsigned int)dim[7]);
140
141 return result;
142 }
143 /* }}} */
144
145 /* {{{ php_handle_bmp
146 */
php_handle_bmp(php_stream * stream TSRMLS_DC)147 static struct gfxinfo *php_handle_bmp (php_stream * stream TSRMLS_DC)
148 {
149 struct gfxinfo *result = NULL;
150 unsigned char dim[16];
151 int size;
152
153 if (php_stream_seek(stream, 11, SEEK_CUR))
154 return NULL;
155
156 if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
157 return NULL;
158
159 size = (((unsigned int)dim[ 3]) << 24) + (((unsigned int)dim[ 2]) << 16) + (((unsigned int)dim[ 1]) << 8) + ((unsigned int) dim[ 0]);
160 if (size == 12) {
161 result = (struct gfxinfo *) ecalloc (1, sizeof(struct gfxinfo));
162 result->width = (((unsigned int)dim[ 5]) << 8) + ((unsigned int) dim[ 4]);
163 result->height = (((unsigned int)dim[ 7]) << 8) + ((unsigned int) dim[ 6]);
164 result->bits = ((unsigned int)dim[11]);
165 } else if (size > 12 && (size <= 64 || size == 108 || size == 124)) {
166 result = (struct gfxinfo *) ecalloc (1, sizeof(struct gfxinfo));
167 result->width = (((unsigned int)dim[ 7]) << 24) + (((unsigned int)dim[ 6]) << 16) + (((unsigned int)dim[ 5]) << 8) + ((unsigned int) dim[ 4]);
168 result->height = (((unsigned int)dim[11]) << 24) + (((unsigned int)dim[10]) << 16) + (((unsigned int)dim[ 9]) << 8) + ((unsigned int) dim[ 8]);
169 result->height = abs((int32_t)result->height);
170 result->bits = (((unsigned int)dim[15]) << 8) + ((unsigned int)dim[14]);
171 } else {
172 return NULL;
173 }
174
175 return result;
176 }
177 /* }}} */
178
179 /* {{{ php_swf_get_bits
180 * routines to handle SWF files. */
php_swf_get_bits(unsigned char * buffer,unsigned int pos,unsigned int count)181 static unsigned long int php_swf_get_bits (unsigned char* buffer, unsigned int pos, unsigned int count)
182 {
183 unsigned int loop;
184 unsigned long int result = 0;
185
186 for (loop = pos; loop < pos + count; loop++)
187 {
188 result = result +
189 ((((buffer[loop / 8]) >> (7 - (loop % 8))) & 0x01) << (count - (loop - pos) - 1));
190 }
191 return result;
192 }
193 /* }}} */
194
195 #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
196 /* {{{ php_handle_swc
197 */
php_handle_swc(php_stream * stream TSRMLS_DC)198 static struct gfxinfo *php_handle_swc(php_stream * stream TSRMLS_DC)
199 {
200 struct gfxinfo *result = NULL;
201
202 long bits;
203 unsigned char a[64];
204 unsigned long len=64, szlength;
205 int factor=1,maxfactor=16;
206 int slength, status=0;
207 char *b, *buf=NULL, *bufz=NULL;
208
209 b = ecalloc (1, len + 1);
210
211 if (php_stream_seek(stream, 5, SEEK_CUR))
212 return NULL;
213
214 if (php_stream_read(stream, a, sizeof(a)) != sizeof(a))
215 return NULL;
216
217 if (uncompress(b, &len, a, sizeof(a)) != Z_OK) {
218 /* failed to decompress the file, will try reading the rest of the file */
219 if (php_stream_seek(stream, 8, SEEK_SET))
220 return NULL;
221
222 slength = php_stream_copy_to_mem(stream, &bufz, PHP_STREAM_COPY_ALL, 0);
223
224 /*
225 * zlib::uncompress() wants to know the output data length
226 * if none was given as a parameter
227 * we try from input length * 2 up to input length * 2^8
228 * doubling it whenever it wasn't big enough
229 * that should be eneugh for all real life cases
230 */
231
232 do {
233 szlength=slength*(1<<factor++);
234 buf = (char *) erealloc(buf,szlength);
235 status = uncompress(buf, &szlength, bufz, slength);
236 } while ((status==Z_BUF_ERROR)&&(factor<maxfactor));
237
238 if (bufz) {
239 pefree(bufz, 0);
240 }
241
242 if (status == Z_OK) {
243 memcpy(b, buf, len);
244 }
245
246 if (buf) {
247 efree(buf);
248 }
249 }
250
251 if (!status) {
252 result = (struct gfxinfo *) ecalloc (1, sizeof (struct gfxinfo));
253 bits = php_swf_get_bits (b, 0, 5);
254 result->width = (php_swf_get_bits (b, 5 + bits, bits) -
255 php_swf_get_bits (b, 5, bits)) / 20;
256 result->height = (php_swf_get_bits (b, 5 + (3 * bits), bits) -
257 php_swf_get_bits (b, 5 + (2 * bits), bits)) / 20;
258 } else {
259 result = NULL;
260 }
261
262 efree (b);
263 return result;
264 }
265 /* }}} */
266 #endif
267
268 /* {{{ php_handle_swf
269 */
php_handle_swf(php_stream * stream TSRMLS_DC)270 static struct gfxinfo *php_handle_swf (php_stream * stream TSRMLS_DC)
271 {
272 struct gfxinfo *result = NULL;
273 long bits;
274 unsigned char a[32];
275
276 if (php_stream_seek(stream, 5, SEEK_CUR))
277 return NULL;
278
279 if (php_stream_read(stream, a, sizeof(a)) != sizeof(a))
280 return NULL;
281
282 result = (struct gfxinfo *) ecalloc (1, sizeof (struct gfxinfo));
283 bits = php_swf_get_bits (a, 0, 5);
284 result->width = (php_swf_get_bits (a, 5 + bits, bits) -
285 php_swf_get_bits (a, 5, bits)) / 20;
286 result->height = (php_swf_get_bits (a, 5 + (3 * bits), bits) -
287 php_swf_get_bits (a, 5 + (2 * bits), bits)) / 20;
288 result->bits = 0;
289 result->channels = 0;
290 return result;
291 }
292 /* }}} */
293
294 /* {{{ php_handle_png
295 * routine to handle PNG files */
php_handle_png(php_stream * stream TSRMLS_DC)296 static struct gfxinfo *php_handle_png (php_stream * stream TSRMLS_DC)
297 {
298 struct gfxinfo *result = NULL;
299 unsigned char dim[9];
300 /* Width: 4 bytes
301 * Height: 4 bytes
302 * Bit depth: 1 byte
303 * Color type: 1 byte
304 * Compression method: 1 byte
305 * Filter method: 1 byte
306 * Interlace method: 1 byte
307 */
308
309 if (php_stream_seek(stream, 8, SEEK_CUR))
310 return NULL;
311
312 if((php_stream_read(stream, dim, sizeof(dim))) < sizeof(dim))
313 return NULL;
314
315 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
316 result->width = (((unsigned int)dim[0]) << 24) + (((unsigned int)dim[1]) << 16) + (((unsigned int)dim[2]) << 8) + ((unsigned int)dim[3]);
317 result->height = (((unsigned int)dim[4]) << 24) + (((unsigned int)dim[5]) << 16) + (((unsigned int)dim[6]) << 8) + ((unsigned int)dim[7]);
318 result->bits = (unsigned int)dim[8];
319 return result;
320 }
321 /* }}} */
322
323 /* routines to handle JPEG data */
324
325 /* some defines for the different JPEG block types */
326 #define M_SOF0 0xC0 /* Start Of Frame N */
327 #define M_SOF1 0xC1 /* N indicates which compression process */
328 #define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */
329 #define M_SOF3 0xC3
330 #define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */
331 #define M_SOF6 0xC6
332 #define M_SOF7 0xC7
333 #define M_SOF9 0xC9
334 #define M_SOF10 0xCA
335 #define M_SOF11 0xCB
336 #define M_SOF13 0xCD
337 #define M_SOF14 0xCE
338 #define M_SOF15 0xCF
339 #define M_SOI 0xD8
340 #define M_EOI 0xD9 /* End Of Image (end of datastream) */
341 #define M_SOS 0xDA /* Start Of Scan (begins compressed data) */
342 #define M_APP0 0xe0
343 #define M_APP1 0xe1
344 #define M_APP2 0xe2
345 #define M_APP3 0xe3
346 #define M_APP4 0xe4
347 #define M_APP5 0xe5
348 #define M_APP6 0xe6
349 #define M_APP7 0xe7
350 #define M_APP8 0xe8
351 #define M_APP9 0xe9
352 #define M_APP10 0xea
353 #define M_APP11 0xeb
354 #define M_APP12 0xec
355 #define M_APP13 0xed
356 #define M_APP14 0xee
357 #define M_APP15 0xef
358 #define M_COM 0xFE /* COMment */
359
360 #define M_PSEUDO 0xFFD8 /* pseudo marker for start of image(byte 0) */
361
362 /* {{{ php_read2
363 */
php_read2(php_stream * stream TSRMLS_DC)364 static unsigned short php_read2(php_stream * stream TSRMLS_DC)
365 {
366 unsigned char a[2];
367
368 /* just return 0 if we hit the end-of-file */
369 if((php_stream_read(stream, a, sizeof(a))) <= 0) return 0;
370
371 return (((unsigned short)a[0]) << 8) + ((unsigned short)a[1]);
372 }
373 /* }}} */
374
375 /* {{{ php_next_marker
376 * get next marker byte from file */
php_next_marker(php_stream * stream,int last_marker,int comment_correction,int ff_read TSRMLS_DC)377 static unsigned int php_next_marker(php_stream * stream, int last_marker, int comment_correction, int ff_read TSRMLS_DC)
378 {
379 int a=0, marker;
380
381 /* get marker byte, swallowing possible padding */
382 if (last_marker==M_COM && comment_correction) {
383 /* some software does not count the length bytes of COM section */
384 /* one company doing so is very much envolved in JPEG... so we accept too */
385 /* by the way: some of those companies changed their code now... */
386 comment_correction = 2;
387 } else {
388 last_marker = 0;
389 comment_correction = 0;
390 }
391 if (ff_read) {
392 a = 1; /* already read 0xff in filetype detection */
393 }
394 do {
395 if ((marker = php_stream_getc(stream)) == EOF)
396 {
397 return M_EOI;/* we hit EOF */
398 }
399 if (last_marker==M_COM && comment_correction>0)
400 {
401 if (marker != 0xFF)
402 {
403 marker = 0xff;
404 comment_correction--;
405 } else {
406 last_marker = M_PSEUDO; /* stop skipping non 0xff for M_COM */
407 }
408 }
409 a++;
410 } while (marker == 0xff);
411 if (a < 2)
412 {
413 return M_EOI; /* at least one 0xff is needed before marker code */
414 }
415 if ( last_marker==M_COM && comment_correction)
416 {
417 return M_EOI; /* ah illegal: char after COM section not 0xFF */
418 }
419 return (unsigned int)marker;
420 }
421 /* }}} */
422
423 /* {{{ php_skip_variable
424 * skip over a variable-length block; assumes proper length marker */
php_skip_variable(php_stream * stream TSRMLS_DC)425 static int php_skip_variable(php_stream * stream TSRMLS_DC)
426 {
427 off_t length = ((unsigned int)php_read2(stream TSRMLS_CC));
428
429 if (length < 2) {
430 return 0;
431 }
432 length = length - 2;
433 php_stream_seek(stream, (long)length, SEEK_CUR);
434 return 1;
435 }
436 /* }}} */
437
438 /* {{{ php_read_APP
439 */
php_read_APP(php_stream * stream,unsigned int marker,zval * info TSRMLS_DC)440 static int php_read_APP(php_stream * stream, unsigned int marker, zval *info TSRMLS_DC)
441 {
442 unsigned short length;
443 unsigned char *buffer;
444 unsigned char markername[16];
445 zval *tmp;
446
447 length = php_read2(stream TSRMLS_CC);
448 if (length < 2) {
449 return 0;
450 }
451 length -= 2; /* length includes itself */
452
453 buffer = emalloc(length);
454
455 if (php_stream_read(stream, buffer, (long) length) <= 0) {
456 efree(buffer);
457 return 0;
458 }
459
460 snprintf(markername, sizeof(markername), "APP%d", marker - M_APP0);
461
462 if (zend_hash_find(Z_ARRVAL_P(info), markername, strlen(markername)+1, (void **) &tmp) == FAILURE) {
463 /* XXX we onyl catch the 1st tag of it's kind! */
464 add_assoc_stringl(info, markername, buffer, length, 1);
465 }
466
467 efree(buffer);
468 return 1;
469 }
470 /* }}} */
471
472 /* {{{ php_handle_jpeg
473 main loop to parse JPEG structure */
php_handle_jpeg(php_stream * stream,zval * info TSRMLS_DC)474 static struct gfxinfo *php_handle_jpeg (php_stream * stream, zval *info TSRMLS_DC)
475 {
476 struct gfxinfo *result = NULL;
477 unsigned int marker = M_PSEUDO;
478 unsigned short length, ff_read=1;
479
480 for (;;) {
481 marker = php_next_marker(stream, marker, 1, ff_read TSRMLS_CC);
482 ff_read = 0;
483 switch (marker) {
484 case M_SOF0:
485 case M_SOF1:
486 case M_SOF2:
487 case M_SOF3:
488 case M_SOF5:
489 case M_SOF6:
490 case M_SOF7:
491 case M_SOF9:
492 case M_SOF10:
493 case M_SOF11:
494 case M_SOF13:
495 case M_SOF14:
496 case M_SOF15:
497 if (result == NULL) {
498 /* handle SOFn block */
499 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
500 length = php_read2(stream TSRMLS_CC);
501 result->bits = php_stream_getc(stream);
502 result->height = php_read2(stream TSRMLS_CC);
503 result->width = php_read2(stream TSRMLS_CC);
504 result->channels = php_stream_getc(stream);
505 if (!info || length < 8) { /* if we don't want an extanded info -> return */
506 return result;
507 }
508 if (php_stream_seek(stream, length - 8, SEEK_CUR)) { /* file error after info */
509 return result;
510 }
511 } else {
512 if (!php_skip_variable(stream TSRMLS_CC)) {
513 return result;
514 }
515 }
516 break;
517
518 case M_APP0:
519 case M_APP1:
520 case M_APP2:
521 case M_APP3:
522 case M_APP4:
523 case M_APP5:
524 case M_APP6:
525 case M_APP7:
526 case M_APP8:
527 case M_APP9:
528 case M_APP10:
529 case M_APP11:
530 case M_APP12:
531 case M_APP13:
532 case M_APP14:
533 case M_APP15:
534 if (info) {
535 if (!php_read_APP(stream, marker, info TSRMLS_CC)) { /* read all the app markes... */
536 return result;
537 }
538 } else {
539 if (!php_skip_variable(stream TSRMLS_CC)) {
540 return result;
541 }
542 }
543 break;
544
545 case M_SOS:
546 case M_EOI:
547 return result; /* we're about to hit image data, or are at EOF. stop processing. */
548
549 default:
550 if (!php_skip_variable(stream TSRMLS_CC)) { /* anything else isn't interesting */
551 return result;
552 }
553 break;
554 }
555 }
556
557 return result; /* perhaps image broken -> no info but size */
558 }
559 /* }}} */
560
561 /* {{{ php_read4
562 */
php_read4(php_stream * stream TSRMLS_DC)563 static unsigned int php_read4(php_stream * stream TSRMLS_DC)
564 {
565 unsigned char a[4];
566
567 /* just return 0 if we hit the end-of-file */
568 if ((php_stream_read(stream, a, sizeof(a))) != sizeof(a)) return 0;
569
570 return (((unsigned int)a[0]) << 24)
571 + (((unsigned int)a[1]) << 16)
572 + (((unsigned int)a[2]) << 8)
573 + (((unsigned int)a[3]));
574 }
575 /* }}} */
576
577 /* {{{ JPEG 2000 Marker Codes */
578 #define JPEG2000_MARKER_PREFIX 0xFF /* All marker codes start with this */
579 #define JPEG2000_MARKER_SOC 0x4F /* Start of Codestream */
580 #define JPEG2000_MARKER_SOT 0x90 /* Start of Tile part */
581 #define JPEG2000_MARKER_SOD 0x93 /* Start of Data */
582 #define JPEG2000_MARKER_EOC 0xD9 /* End of Codestream */
583 #define JPEG2000_MARKER_SIZ 0x51 /* Image and tile size */
584 #define JPEG2000_MARKER_COD 0x52 /* Coding style default */
585 #define JPEG2000_MARKER_COC 0x53 /* Coding style component */
586 #define JPEG2000_MARKER_RGN 0x5E /* Region of interest */
587 #define JPEG2000_MARKER_QCD 0x5C /* Quantization default */
588 #define JPEG2000_MARKER_QCC 0x5D /* Quantization component */
589 #define JPEG2000_MARKER_POC 0x5F /* Progression order change */
590 #define JPEG2000_MARKER_TLM 0x55 /* Tile-part lengths */
591 #define JPEG2000_MARKER_PLM 0x57 /* Packet length, main header */
592 #define JPEG2000_MARKER_PLT 0x58 /* Packet length, tile-part header */
593 #define JPEG2000_MARKER_PPM 0x60 /* Packed packet headers, main header */
594 #define JPEG2000_MARKER_PPT 0x61 /* Packed packet headers, tile part header */
595 #define JPEG2000_MARKER_SOP 0x91 /* Start of packet */
596 #define JPEG2000_MARKER_EPH 0x92 /* End of packet header */
597 #define JPEG2000_MARKER_CRG 0x63 /* Component registration */
598 #define JPEG2000_MARKER_COM 0x64 /* Comment */
599 /* }}} */
600
601 /* {{{ php_handle_jpc
602 Main loop to parse JPEG2000 raw codestream structure */
php_handle_jpc(php_stream * stream TSRMLS_DC)603 static struct gfxinfo *php_handle_jpc(php_stream * stream TSRMLS_DC)
604 {
605 struct gfxinfo *result = NULL;
606 unsigned short dummy_short;
607 int highest_bit_depth, bit_depth;
608 unsigned char first_marker_id;
609 unsigned int i;
610
611 /* JPEG 2000 components can be vastly different from one another.
612 Each component can be sampled at a different resolution, use
613 a different colour space, have a separate colour depth, and
614 be compressed totally differently! This makes giving a single
615 "bit depth" answer somewhat problematic. For this implementation
616 we'll use the highest depth encountered. */
617
618 /* Get the single byte that remains after the file type indentification */
619 first_marker_id = php_stream_getc(stream);
620
621 /* Ensure that this marker is SIZ (as is mandated by the standard) */
622 if (first_marker_id != JPEG2000_MARKER_SIZ) {
623 php_error_docref(NULL TSRMLS_CC, E_WARNING, "JPEG2000 codestream corrupt(Expected SIZ marker not found after SOC)");
624 return NULL;
625 }
626
627 result = (struct gfxinfo *)ecalloc(1, sizeof(struct gfxinfo));
628
629 dummy_short = php_read2(stream TSRMLS_CC); /* Lsiz */
630 dummy_short = php_read2(stream TSRMLS_CC); /* Rsiz */
631 result->width = php_read4(stream TSRMLS_CC); /* Xsiz */
632 result->height = php_read4(stream TSRMLS_CC); /* Ysiz */
633
634 #if MBO_0
635 php_read4(stream TSRMLS_CC); /* XOsiz */
636 php_read4(stream TSRMLS_CC); /* YOsiz */
637 php_read4(stream TSRMLS_CC); /* XTsiz */
638 php_read4(stream TSRMLS_CC); /* YTsiz */
639 php_read4(stream TSRMLS_CC); /* XTOsiz */
640 php_read4(stream TSRMLS_CC); /* YTOsiz */
641 #else
642 if (php_stream_seek(stream, 24, SEEK_CUR)) {
643 efree(result);
644 return NULL;
645 }
646 #endif
647
648 result->channels = php_read2(stream TSRMLS_CC); /* Csiz */
649 if (result->channels < 0 || result->channels > 256) {
650 efree(result);
651 return NULL;
652 }
653
654 /* Collect bit depth info */
655 highest_bit_depth = 0;
656 for (i = 0; i < result->channels; i++) {
657 bit_depth = php_stream_getc(stream); /* Ssiz[i] */
658 bit_depth++;
659 if (bit_depth > highest_bit_depth) {
660 highest_bit_depth = bit_depth;
661 }
662
663 php_stream_getc(stream); /* XRsiz[i] */
664 php_stream_getc(stream); /* YRsiz[i] */
665 }
666
667 result->bits = highest_bit_depth;
668
669 return result;
670 }
671 /* }}} */
672
673 /* {{{ php_handle_jp2
674 main loop to parse JPEG 2000 JP2 wrapper format structure */
php_handle_jp2(php_stream * stream TSRMLS_DC)675 static struct gfxinfo *php_handle_jp2(php_stream *stream TSRMLS_DC)
676 {
677 struct gfxinfo *result = NULL;
678 unsigned int box_length;
679 unsigned int box_type;
680 char jp2c_box_id[] = {(char)0x6a, (char)0x70, (char)0x32, (char)0x63};
681
682 /* JP2 is a wrapper format for JPEG 2000. Data is contained within "boxes".
683 Boxes themselves can be contained within "super-boxes". Super-Boxes can
684 contain super-boxes which provides us with a hierarchical storage system.
685
686 It is valid for a JP2 file to contain multiple individual codestreams.
687 We'll just look for the first codestream at the root of the box structure
688 and handle that.
689 */
690
691 for (;;)
692 {
693 box_length = php_read4(stream TSRMLS_CC); /* LBox */
694 /* TBox */
695 if (php_stream_read(stream, (void *)&box_type, sizeof(box_type)) != sizeof(box_type)) {
696 /* Use this as a general "out of stream" error */
697 break;
698 }
699
700 if (box_length == 1) {
701 /* We won't handle XLBoxes */
702 return NULL;
703 }
704
705 if (!memcmp(&box_type, jp2c_box_id, 4))
706 {
707 /* Skip the first 3 bytes to emulate the file type examination */
708 php_stream_seek(stream, 3, SEEK_CUR);
709
710 result = php_handle_jpc(stream TSRMLS_CC);
711 break;
712 }
713
714 /* Stop if this was the last box */
715 if ((int)box_length <= 0) {
716 break;
717 }
718
719 /* Skip over LBox (Which includes both TBox and LBox itself */
720 if (php_stream_seek(stream, box_length - 8, SEEK_CUR)) {
721 break;
722 }
723 }
724
725 if (result == NULL) {
726 php_error_docref(NULL TSRMLS_CC, E_WARNING, "JP2 file has no codestreams at root level");
727 }
728
729 return result;
730 }
731 /* }}} */
732
733 /* {{{ tiff constants
734 */
735 PHPAPI const int php_tiff_bytes_per_format[] = {0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8};
736
737 /* uncompressed only */
738 #define TAG_IMAGEWIDTH 0x0100
739 #define TAG_IMAGEHEIGHT 0x0101
740 /* compressed images only */
741 #define TAG_COMP_IMAGEWIDTH 0xA002
742 #define TAG_COMP_IMAGEHEIGHT 0xA003
743
744 #define TAG_FMT_BYTE 1
745 #define TAG_FMT_STRING 2
746 #define TAG_FMT_USHORT 3
747 #define TAG_FMT_ULONG 4
748 #define TAG_FMT_URATIONAL 5
749 #define TAG_FMT_SBYTE 6
750 #define TAG_FMT_UNDEFINED 7
751 #define TAG_FMT_SSHORT 8
752 #define TAG_FMT_SLONG 9
753 #define TAG_FMT_SRATIONAL 10
754 #define TAG_FMT_SINGLE 11
755 #define TAG_FMT_DOUBLE 12
756 /* }}} */
757
758 /* {{{ php_ifd_get16u
759 * Convert a 16 bit unsigned value from file's native byte order */
php_ifd_get16u(void * Short,int motorola_intel)760 static int php_ifd_get16u(void *Short, int motorola_intel)
761 {
762 if (motorola_intel) {
763 return (((unsigned char *)Short)[0] << 8) | ((unsigned char *)Short)[1];
764 } else {
765 return (((unsigned char *)Short)[1] << 8) | ((unsigned char *)Short)[0];
766 }
767 }
768 /* }}} */
769
770 /* {{{ php_ifd_get16s
771 * Convert a 16 bit signed value from file's native byte order */
php_ifd_get16s(void * Short,int motorola_intel)772 static signed short php_ifd_get16s(void *Short, int motorola_intel)
773 {
774 return (signed short)php_ifd_get16u(Short, motorola_intel);
775 }
776 /* }}} */
777
778 /* {{{ php_ifd_get32s
779 * Convert a 32 bit signed value from file's native byte order */
php_ifd_get32s(void * Long,int motorola_intel)780 static int php_ifd_get32s(void *Long, int motorola_intel)
781 {
782 if (motorola_intel) {
783 return ((( char *)Long)[0] << 24) | (((unsigned char *)Long)[1] << 16)
784 | (((unsigned char *)Long)[2] << 8 ) | (((unsigned char *)Long)[3] << 0 );
785 } else {
786 return ((( char *)Long)[3] << 24) | (((unsigned char *)Long)[2] << 16)
787 | (((unsigned char *)Long)[1] << 8 ) | (((unsigned char *)Long)[0] << 0 );
788 }
789 }
790 /* }}} */
791
792 /* {{{ php_ifd_get32u
793 * Convert a 32 bit unsigned value from file's native byte order */
php_ifd_get32u(void * Long,int motorola_intel)794 static unsigned php_ifd_get32u(void *Long, int motorola_intel)
795 {
796 return (unsigned)php_ifd_get32s(Long, motorola_intel) & 0xffffffff;
797 }
798 /* }}} */
799
800 /* {{{ php_handle_tiff
801 main loop to parse TIFF structure */
php_handle_tiff(php_stream * stream,zval * info,int motorola_intel TSRMLS_DC)802 static struct gfxinfo *php_handle_tiff (php_stream * stream, zval *info, int motorola_intel TSRMLS_DC)
803 {
804 struct gfxinfo *result = NULL;
805 int i, num_entries;
806 unsigned char *dir_entry;
807 size_t ifd_size, dir_size, entry_value, width=0, height=0, ifd_addr;
808 int entry_tag , entry_type;
809 char *ifd_data, ifd_ptr[4];
810
811 if (php_stream_read(stream, ifd_ptr, 4) != 4)
812 return NULL;
813 ifd_addr = php_ifd_get32u(ifd_ptr, motorola_intel);
814 if (php_stream_seek(stream, ifd_addr-8, SEEK_CUR))
815 return NULL;
816 ifd_size = 2;
817 ifd_data = emalloc(ifd_size);
818 if (php_stream_read(stream, ifd_data, 2) != 2) {
819 efree(ifd_data);
820 return NULL;
821 }
822 num_entries = php_ifd_get16u(ifd_data, motorola_intel);
823 dir_size = 2/*num dir entries*/ +12/*length of entry*/*num_entries +4/* offset to next ifd (points to thumbnail or NULL)*/;
824 ifd_size = dir_size;
825 ifd_data = erealloc(ifd_data,ifd_size);
826 if (php_stream_read(stream, ifd_data+2, dir_size-2) != dir_size-2) {
827 efree(ifd_data);
828 return NULL;
829 }
830 /* now we have the directory we can look how long it should be */
831 ifd_size = dir_size;
832 for(i=0;i<num_entries;i++) {
833 dir_entry = ifd_data+2+i*12;
834 entry_tag = php_ifd_get16u(dir_entry+0, motorola_intel);
835 entry_type = php_ifd_get16u(dir_entry+2, motorola_intel);
836 switch(entry_type) {
837 case TAG_FMT_BYTE:
838 case TAG_FMT_SBYTE:
839 entry_value = (size_t)(dir_entry[8]);
840 break;
841 case TAG_FMT_USHORT:
842 entry_value = php_ifd_get16u(dir_entry+8, motorola_intel);
843 break;
844 case TAG_FMT_SSHORT:
845 entry_value = php_ifd_get16s(dir_entry+8, motorola_intel);
846 break;
847 case TAG_FMT_ULONG:
848 entry_value = php_ifd_get32u(dir_entry+8, motorola_intel);
849 break;
850 case TAG_FMT_SLONG:
851 entry_value = php_ifd_get32s(dir_entry+8, motorola_intel);
852 break;
853 default:
854 continue;
855 }
856 switch(entry_tag) {
857 case TAG_IMAGEWIDTH:
858 case TAG_COMP_IMAGEWIDTH:
859 width = entry_value;
860 break;
861 case TAG_IMAGEHEIGHT:
862 case TAG_COMP_IMAGEHEIGHT:
863 height = entry_value;
864 break;
865 }
866 }
867 efree(ifd_data);
868 if ( width && height) {
869 /* not the same when in for-loop */
870 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
871 result->height = height;
872 result->width = width;
873 result->bits = 0;
874 result->channels = 0;
875 return result;
876 }
877 return NULL;
878 }
879 /* }}} */
880
881 /* {{{ php_handle_psd
882 */
php_handle_iff(php_stream * stream TSRMLS_DC)883 static struct gfxinfo *php_handle_iff(php_stream * stream TSRMLS_DC)
884 {
885 struct gfxinfo * result;
886 unsigned char a[10];
887 int chunkId;
888 int size;
889 short width, height, bits;
890
891 if (php_stream_read(stream, a, 8) != 8) {
892 return NULL;
893 }
894 if (strncmp(a+4, "ILBM", 4) && strncmp(a+4, "PBM ", 4)) {
895 return NULL;
896 }
897
898 /* loop chunks to find BMHD chunk */
899 do {
900 if (php_stream_read(stream, a, 8) != 8) {
901 return NULL;
902 }
903 chunkId = php_ifd_get32s(a+0, 1);
904 size = php_ifd_get32s(a+4, 1);
905 if (size < 0) {
906 return NULL;
907 }
908 if ((size & 1) == 1) {
909 size++;
910 }
911 if (chunkId == 0x424d4844) { /* BMHD chunk */
912 if (size < 9 || php_stream_read(stream, a, 9) != 9) {
913 return NULL;
914 }
915 width = php_ifd_get16s(a+0, 1);
916 height = php_ifd_get16s(a+2, 1);
917 bits = a[8] & 0xff;
918 if (width > 0 && height > 0 && bits > 0 && bits < 33) {
919 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
920 result->width = width;
921 result->height = height;
922 result->bits = bits;
923 result->channels = 0;
924 return result;
925 }
926 } else {
927 if (php_stream_seek(stream, size, SEEK_CUR)) {
928 return NULL;
929 }
930 }
931 } while (1);
932 }
933 /* }}} */
934
935 /* {{{ php_get_wbmp
936 * int WBMP file format type
937 * byte Header Type
938 * byte Extended Header
939 * byte Header Data (type 00 = multibyte)
940 * byte Header Data (type 11 = name/pairs)
941 * int Number of columns
942 * int Number of rows
943 */
php_get_wbmp(php_stream * stream,struct gfxinfo ** result,int check TSRMLS_DC)944 static int php_get_wbmp(php_stream *stream, struct gfxinfo **result, int check TSRMLS_DC)
945 {
946 int i, width = 0, height = 0;
947
948 if (php_stream_rewind(stream)) {
949 return 0;
950 }
951
952 /* get type */
953 if (php_stream_getc(stream) != 0) {
954 return 0;
955 }
956
957 /* skip header */
958 do {
959 i = php_stream_getc(stream);
960 if (i < 0) {
961 return 0;
962 }
963 } while (i & 0x80);
964
965 /* get width */
966 do {
967 i = php_stream_getc(stream);
968 if (i < 0) {
969 return 0;
970 }
971 width = (width << 7) | (i & 0x7f);
972 } while (i & 0x80);
973
974 /* get height */
975 do {
976 i = php_stream_getc(stream);
977 if (i < 0) {
978 return 0;
979 }
980 height = (height << 7) | (i & 0x7f);
981 } while (i & 0x80);
982
983 /* maximum valid sizes for wbmp (although 127x127 may be a more accurate one) */
984 if (!height || !width || height > 2048 || width > 2048) {
985 return 0;
986 }
987
988 if (!check) {
989 (*result)->width = width;
990 (*result)->height = height;
991 }
992
993 return IMAGE_FILETYPE_WBMP;
994 }
995 /* }}} */
996
997 /* {{{ php_handle_wbmp
998 */
php_handle_wbmp(php_stream * stream TSRMLS_DC)999 static struct gfxinfo *php_handle_wbmp(php_stream * stream TSRMLS_DC)
1000 {
1001 struct gfxinfo *result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
1002
1003 if (!php_get_wbmp(stream, &result, 0 TSRMLS_CC)) {
1004 efree(result);
1005 return NULL;
1006 }
1007
1008 return result;
1009 }
1010 /* }}} */
1011
1012 /* {{{ php_get_xbm
1013 */
php_get_xbm(php_stream * stream,struct gfxinfo ** result TSRMLS_DC)1014 static int php_get_xbm(php_stream *stream, struct gfxinfo **result TSRMLS_DC)
1015 {
1016 char *fline;
1017 char *iname;
1018 char *type;
1019 int value;
1020 unsigned int width = 0, height = 0;
1021
1022 if (result) {
1023 *result = NULL;
1024 }
1025 if (php_stream_rewind(stream)) {
1026 return 0;
1027 }
1028 while ((fline=php_stream_gets(stream, NULL, 0)) != NULL) {
1029 iname = estrdup(fline); /* simple way to get necessary buffer of required size */
1030 if (sscanf(fline, "#define %s %d", iname, &value) == 2) {
1031 if (!(type = strrchr(iname, '_'))) {
1032 type = iname;
1033 } else {
1034 type++;
1035 }
1036
1037 if (!strcmp("width", type)) {
1038 width = (unsigned int) value;
1039 if (height) {
1040 efree(iname);
1041 break;
1042 }
1043 }
1044 if (!strcmp("height", type)) {
1045 height = (unsigned int) value;
1046 if (width) {
1047 efree(iname);
1048 break;
1049 }
1050 }
1051 }
1052 efree(fline);
1053 efree(iname);
1054 }
1055 if (fline) {
1056 efree(fline);
1057 }
1058
1059 if (width && height) {
1060 if (result) {
1061 *result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
1062 (*result)->width = width;
1063 (*result)->height = height;
1064 }
1065 return IMAGE_FILETYPE_XBM;
1066 }
1067
1068 return 0;
1069 }
1070 /* }}} */
1071
1072 /* {{{ php_handle_xbm
1073 */
php_handle_xbm(php_stream * stream TSRMLS_DC)1074 static struct gfxinfo *php_handle_xbm(php_stream * stream TSRMLS_DC)
1075 {
1076 struct gfxinfo *result;
1077 php_get_xbm(stream, &result TSRMLS_CC);
1078 return result;
1079 }
1080 /* }}} */
1081
1082 /* {{{ php_handle_ico
1083 */
php_handle_ico(php_stream * stream TSRMLS_DC)1084 static struct gfxinfo *php_handle_ico(php_stream * stream TSRMLS_DC)
1085 {
1086 struct gfxinfo *result = NULL;
1087 unsigned char dim[16];
1088 int num_icons = 0;
1089
1090 if (php_stream_read(stream, dim, 2) != 2)
1091 return NULL;
1092
1093 num_icons = (((unsigned int)dim[1]) << 8) + ((unsigned int) dim[0]);
1094
1095 if (num_icons < 1 || num_icons > 255)
1096 return NULL;
1097
1098 result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
1099
1100 while (num_icons > 0)
1101 {
1102 if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
1103 break;
1104
1105 if ((((unsigned int)dim[7]) << 8) + ((unsigned int)dim[6]) >= result->bits)
1106 {
1107 result->width = (unsigned int)dim[0];
1108 result->height = (unsigned int)dim[1];
1109 result->bits = (((unsigned int)dim[7]) << 8) + ((unsigned int)dim[6]);
1110 }
1111 num_icons--;
1112 }
1113
1114 return result;
1115 }
1116 /* }}} */
1117
1118 /* {{{ php_image_type_to_mime_type
1119 * Convert internal image_type to mime type */
php_image_type_to_mime_type(int image_type)1120 PHPAPI char * php_image_type_to_mime_type(int image_type)
1121 {
1122 switch( image_type) {
1123 case IMAGE_FILETYPE_GIF:
1124 return "image/gif";
1125 case IMAGE_FILETYPE_JPEG:
1126 return "image/jpeg";
1127 case IMAGE_FILETYPE_PNG:
1128 return "image/png";
1129 case IMAGE_FILETYPE_SWF:
1130 case IMAGE_FILETYPE_SWC:
1131 return "application/x-shockwave-flash";
1132 case IMAGE_FILETYPE_PSD:
1133 return "image/psd";
1134 case IMAGE_FILETYPE_BMP:
1135 return "image/x-ms-bmp";
1136 case IMAGE_FILETYPE_TIFF_II:
1137 case IMAGE_FILETYPE_TIFF_MM:
1138 return "image/tiff";
1139 case IMAGE_FILETYPE_IFF:
1140 return "image/iff";
1141 case IMAGE_FILETYPE_WBMP:
1142 return "image/vnd.wap.wbmp";
1143 case IMAGE_FILETYPE_JPC:
1144 return "application/octet-stream";
1145 case IMAGE_FILETYPE_JP2:
1146 return "image/jp2";
1147 case IMAGE_FILETYPE_XBM:
1148 return "image/xbm";
1149 case IMAGE_FILETYPE_ICO:
1150 return "image/vnd.microsoft.icon";
1151 default:
1152 case IMAGE_FILETYPE_UNKNOWN:
1153 return "application/octet-stream"; /* suppose binary format */
1154 }
1155 }
1156 /* }}} */
1157
1158 /* {{{ proto string image_type_to_mime_type(int imagetype)
1159 Get Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype */
PHP_FUNCTION(image_type_to_mime_type)1160 PHP_FUNCTION(image_type_to_mime_type)
1161 {
1162 long p_image_type;
1163
1164 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &p_image_type) == FAILURE) {
1165 return;
1166 }
1167
1168 ZVAL_STRING(return_value, (char*)php_image_type_to_mime_type(p_image_type), 1);
1169 }
1170 /* }}} */
1171
1172 /* {{{ proto string image_type_to_extension(int imagetype [, bool include_dot])
1173 Get file extension for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype */
PHP_FUNCTION(image_type_to_extension)1174 PHP_FUNCTION(image_type_to_extension)
1175 {
1176 long image_type;
1177 zend_bool inc_dot=1;
1178
1179 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l|b", &image_type, &inc_dot) == FAILURE) {
1180 RETURN_FALSE;
1181 }
1182
1183 switch (image_type) {
1184 case IMAGE_FILETYPE_GIF:
1185 RETURN_STRING(".gif" + !inc_dot, 1);
1186 case IMAGE_FILETYPE_JPEG:
1187 RETURN_STRING(".jpeg" + !inc_dot, 1);
1188 case IMAGE_FILETYPE_PNG:
1189 RETURN_STRING(".png" + !inc_dot, 1);
1190 case IMAGE_FILETYPE_SWF:
1191 case IMAGE_FILETYPE_SWC:
1192 RETURN_STRING(".swf" + !inc_dot, 1);
1193 case IMAGE_FILETYPE_PSD:
1194 RETURN_STRING(".psd" + !inc_dot, 1);
1195 case IMAGE_FILETYPE_BMP:
1196 case IMAGE_FILETYPE_WBMP:
1197 RETURN_STRING(".bmp" + !inc_dot, 1);
1198 case IMAGE_FILETYPE_TIFF_II:
1199 case IMAGE_FILETYPE_TIFF_MM:
1200 RETURN_STRING(".tiff" + !inc_dot, 1);
1201 case IMAGE_FILETYPE_IFF:
1202 RETURN_STRING(".iff" + !inc_dot, 1);
1203 case IMAGE_FILETYPE_JPC:
1204 RETURN_STRING(".jpc" + !inc_dot, 1);
1205 case IMAGE_FILETYPE_JP2:
1206 RETURN_STRING(".jp2" + !inc_dot, 1);
1207 case IMAGE_FILETYPE_JPX:
1208 RETURN_STRING(".jpx" + !inc_dot, 1);
1209 case IMAGE_FILETYPE_JB2:
1210 RETURN_STRING(".jb2" + !inc_dot, 1);
1211 case IMAGE_FILETYPE_XBM:
1212 RETURN_STRING(".xbm" + !inc_dot, 1);
1213 case IMAGE_FILETYPE_ICO:
1214 RETURN_STRING(".ico" + !inc_dot, 1);
1215 }
1216
1217 RETURN_FALSE;
1218 }
1219 /* }}} */
1220
1221 /* {{{ php_imagetype
1222 detect filetype from first bytes */
php_getimagetype(php_stream * stream,char * filetype TSRMLS_DC)1223 PHPAPI int php_getimagetype(php_stream * stream, char *filetype TSRMLS_DC)
1224 {
1225 char tmp[12];
1226
1227 if ( !filetype) filetype = tmp;
1228 if((php_stream_read(stream, filetype, 3)) != 3) {
1229 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1230 return IMAGE_FILETYPE_UNKNOWN;
1231 }
1232
1233 /* BYTES READ: 3 */
1234 if (!memcmp(filetype, php_sig_gif, 3)) {
1235 return IMAGE_FILETYPE_GIF;
1236 } else if (!memcmp(filetype, php_sig_jpg, 3)) {
1237 return IMAGE_FILETYPE_JPEG;
1238 } else if (!memcmp(filetype, php_sig_png, 3)) {
1239 if (php_stream_read(stream, filetype+3, 5) != 5) {
1240 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1241 return IMAGE_FILETYPE_UNKNOWN;
1242 }
1243 if (!memcmp(filetype, php_sig_png, 8)) {
1244 return IMAGE_FILETYPE_PNG;
1245 } else {
1246 php_error_docref(NULL TSRMLS_CC, E_WARNING, "PNG file corrupted by ASCII conversion");
1247 return IMAGE_FILETYPE_UNKNOWN;
1248 }
1249 } else if (!memcmp(filetype, php_sig_swf, 3)) {
1250 return IMAGE_FILETYPE_SWF;
1251 } else if (!memcmp(filetype, php_sig_swc, 3)) {
1252 return IMAGE_FILETYPE_SWC;
1253 } else if (!memcmp(filetype, php_sig_psd, 3)) {
1254 return IMAGE_FILETYPE_PSD;
1255 } else if (!memcmp(filetype, php_sig_bmp, 2)) {
1256 return IMAGE_FILETYPE_BMP;
1257 } else if (!memcmp(filetype, php_sig_jpc, 3)) {
1258 return IMAGE_FILETYPE_JPC;
1259 }
1260
1261 if (php_stream_read(stream, filetype+3, 1) != 1) {
1262 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1263 return IMAGE_FILETYPE_UNKNOWN;
1264 }
1265 /* BYTES READ: 4 */
1266 if (!memcmp(filetype, php_sig_tif_ii, 4)) {
1267 return IMAGE_FILETYPE_TIFF_II;
1268 } else if (!memcmp(filetype, php_sig_tif_mm, 4)) {
1269 return IMAGE_FILETYPE_TIFF_MM;
1270 } else if (!memcmp(filetype, php_sig_iff, 4)) {
1271 return IMAGE_FILETYPE_IFF;
1272 } else if (!memcmp(filetype, php_sig_ico, 4)) {
1273 return IMAGE_FILETYPE_ICO;
1274 }
1275
1276 if (php_stream_read(stream, filetype+4, 8) != 8) {
1277 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1278 return IMAGE_FILETYPE_UNKNOWN;
1279 }
1280 /* BYTES READ: 12 */
1281 if (!memcmp(filetype, php_sig_jp2, 12)) {
1282 return IMAGE_FILETYPE_JP2;
1283 }
1284
1285 /* AFTER ALL ABOVE FAILED */
1286 if (php_get_wbmp(stream, NULL, 1 TSRMLS_CC)) {
1287 return IMAGE_FILETYPE_WBMP;
1288 }
1289 if (php_get_xbm(stream, NULL TSRMLS_CC)) {
1290 return IMAGE_FILETYPE_XBM;
1291 }
1292 return IMAGE_FILETYPE_UNKNOWN;
1293 }
1294 /* }}} */
1295
php_getimagesize_from_stream(php_stream * stream,zval ** info,INTERNAL_FUNCTION_PARAMETERS)1296 static void php_getimagesize_from_stream(php_stream *stream, zval **info, INTERNAL_FUNCTION_PARAMETERS) /* {{{ */
1297 {
1298 char *temp;
1299 int itype = 0;
1300 struct gfxinfo *result = NULL;
1301
1302 if (!stream) {
1303 RETURN_FALSE;
1304 }
1305
1306 itype = php_getimagetype(stream, NULL TSRMLS_CC);
1307 switch( itype) {
1308 case IMAGE_FILETYPE_GIF:
1309 result = php_handle_gif(stream TSRMLS_CC);
1310 break;
1311 case IMAGE_FILETYPE_JPEG:
1312 if (info) {
1313 result = php_handle_jpeg(stream, *info TSRMLS_CC);
1314 } else {
1315 result = php_handle_jpeg(stream, NULL TSRMLS_CC);
1316 }
1317 break;
1318 case IMAGE_FILETYPE_PNG:
1319 result = php_handle_png(stream TSRMLS_CC);
1320 break;
1321 case IMAGE_FILETYPE_SWF:
1322 result = php_handle_swf(stream TSRMLS_CC);
1323 break;
1324 case IMAGE_FILETYPE_SWC:
1325 #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
1326 result = php_handle_swc(stream TSRMLS_CC);
1327 #else
1328 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "The image is a compressed SWF file, but you do not have a static version of the zlib extension enabled");
1329 #endif
1330 break;
1331 case IMAGE_FILETYPE_PSD:
1332 result = php_handle_psd(stream TSRMLS_CC);
1333 break;
1334 case IMAGE_FILETYPE_BMP:
1335 result = php_handle_bmp(stream TSRMLS_CC);
1336 break;
1337 case IMAGE_FILETYPE_TIFF_II:
1338 result = php_handle_tiff(stream, NULL, 0 TSRMLS_CC);
1339 break;
1340 case IMAGE_FILETYPE_TIFF_MM:
1341 result = php_handle_tiff(stream, NULL, 1 TSRMLS_CC);
1342 break;
1343 case IMAGE_FILETYPE_JPC:
1344 result = php_handle_jpc(stream TSRMLS_CC);
1345 break;
1346 case IMAGE_FILETYPE_JP2:
1347 result = php_handle_jp2(stream TSRMLS_CC);
1348 break;
1349 case IMAGE_FILETYPE_IFF:
1350 result = php_handle_iff(stream TSRMLS_CC);
1351 break;
1352 case IMAGE_FILETYPE_WBMP:
1353 result = php_handle_wbmp(stream TSRMLS_CC);
1354 break;
1355 case IMAGE_FILETYPE_XBM:
1356 result = php_handle_xbm(stream TSRMLS_CC);
1357 break;
1358 case IMAGE_FILETYPE_ICO:
1359 result = php_handle_ico(stream TSRMLS_CC);
1360 break;
1361 default:
1362 case IMAGE_FILETYPE_UNKNOWN:
1363 break;
1364 }
1365
1366 if (result) {
1367 array_init(return_value);
1368 add_index_long(return_value, 0, result->width);
1369 add_index_long(return_value, 1, result->height);
1370 add_index_long(return_value, 2, itype);
1371 spprintf(&temp, 0, "width=\"%d\" height=\"%d\"", result->width, result->height);
1372 add_index_string(return_value, 3, temp, 0);
1373
1374 if (result->bits != 0) {
1375 add_assoc_long(return_value, "bits", result->bits);
1376 }
1377 if (result->channels != 0) {
1378 add_assoc_long(return_value, "channels", result->channels);
1379 }
1380 add_assoc_string(return_value, "mime", (char*)php_image_type_to_mime_type(itype), 1);
1381 efree(result);
1382 } else {
1383 RETURN_FALSE;
1384 }
1385 }
1386 /* }}} */
1387
1388 #define FROM_DATA 0
1389 #define FROM_PATH 1
1390
php_getimagesize_from_any(INTERNAL_FUNCTION_PARAMETERS,int mode)1391 static void php_getimagesize_from_any(INTERNAL_FUNCTION_PARAMETERS, int mode) { /* {{{ */
1392 zval **info = NULL;
1393 php_stream *stream = NULL;
1394 char *input;
1395 int input_len;
1396 const int argc = ZEND_NUM_ARGS();
1397
1398 if (zend_parse_parameters(argc TSRMLS_CC, "s|Z", &input, &input_len, &info) == FAILURE) {
1399 return;
1400 }
1401
1402 if (argc == 2) {
1403 zval_dtor(*info);
1404 array_init(*info);
1405 }
1406
1407
1408 if (mode == FROM_PATH) {
1409 stream = php_stream_open_wrapper(input, "rb", STREAM_MUST_SEEK|REPORT_ERRORS|IGNORE_PATH, NULL);
1410 } else {
1411 stream = php_stream_memory_open(TEMP_STREAM_READONLY, input, input_len);
1412 }
1413
1414 if (!stream) {
1415 RETURN_FALSE;
1416 }
1417
1418 php_getimagesize_from_stream(stream, info, INTERNAL_FUNCTION_PARAM_PASSTHRU);
1419 php_stream_close(stream);
1420 }
1421 /* }}} */
1422
1423 /* {{{ proto array getimagesize(string imagefile [, array info])
1424 Get the size of an image as 4-element array */
PHP_FUNCTION(getimagesize)1425 PHP_FUNCTION(getimagesize)
1426 {
1427 php_getimagesize_from_any(INTERNAL_FUNCTION_PARAM_PASSTHRU, FROM_PATH);
1428 }
1429 /* }}} */
1430
1431 /* {{{ proto array getimagesizefromstring(string data [, array info])
1432 Get the size of an image as 4-element array */
PHP_FUNCTION(getimagesizefromstring)1433 PHP_FUNCTION(getimagesizefromstring)
1434 {
1435 php_getimagesize_from_any(INTERNAL_FUNCTION_PARAM_PASSTHRU, FROM_DATA);
1436 }
1437
1438 /*
1439 * Local variables:
1440 * tab-width: 4
1441 * c-basic-offset: 4
1442 * End:
1443 * vim600: sw=4 ts=4 fdm=marker
1444 * vim<600: sw=4 ts=4
1445 */
1446
