1 : /*
2 : +----------------------------------------------------------------------+
3 : | PHP Version 5 |
4 : +----------------------------------------------------------------------+
5 : | Copyright (c) 1997-2009 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: image.c 277324 2009-03-17 03:25:57Z scottmac $ */
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 :
34 : #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
35 : #include "zlib.h"
36 : #endif
37 :
38 : /* file type markers */
39 : PHPAPI const char php_sig_gif[3] = {'G', 'I', 'F'};
40 : PHPAPI const char php_sig_psd[4] = {'8', 'B', 'P', 'S'};
41 : PHPAPI const char php_sig_bmp[2] = {'B', 'M'};
42 : PHPAPI const char php_sig_swf[3] = {'F', 'W', 'S'};
43 : PHPAPI const char php_sig_swc[3] = {'C', 'W', 'S'};
44 : PHPAPI const char php_sig_jpg[3] = {(char) 0xff, (char) 0xd8, (char) 0xff};
45 : PHPAPI const char php_sig_png[8] = {(char) 0x89, (char) 0x50, (char) 0x4e, (char) 0x47,
46 : (char) 0x0d, (char) 0x0a, (char) 0x1a, (char) 0x0a};
47 : PHPAPI const char php_sig_tif_ii[4] = {'I','I', (char)0x2A, (char)0x00};
48 : PHPAPI const char php_sig_tif_mm[4] = {'M','M', (char)0x00, (char)0x2A};
49 : PHPAPI const char php_sig_jpc[3] = {(char)0xff, (char)0x4f, (char)0xff};
50 : PHPAPI const char php_sig_jp2[12] = {(char)0x00, (char)0x00, (char)0x00, (char)0x0c,
51 : (char)0x6a, (char)0x50, (char)0x20, (char)0x20,
52 : (char)0x0d, (char)0x0a, (char)0x87, (char)0x0a};
53 : PHPAPI const char php_sig_iff[4] = {'F','O','R','M'};
54 : PHPAPI const char php_sig_ico[3] = {(char)0x00, (char)0x00, (char)0x01};
55 :
56 : /* REMEMBER TO ADD MIME-TYPE TO FUNCTION php_image_type_to_mime_type */
57 : /* PCX must check first 64bytes and byte 0=0x0a and byte2 < 0x06 */
58 :
59 : /* return info as a struct, to make expansion easier */
60 :
61 : struct gfxinfo {
62 : unsigned int width;
63 : unsigned int height;
64 : unsigned int bits;
65 : unsigned int channels;
66 : };
67 :
68 : /* {{{ PHP_MINIT_FUNCTION(imagetypes)
69 : * Register IMAGETYPE_<xxx> constants used by GetImageSize(), image_type_to_mime_type, ext/exif */
70 : PHP_MINIT_FUNCTION(imagetypes)
71 17633 : {
72 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_GIF", IMAGE_FILETYPE_GIF, CONST_CS | CONST_PERSISTENT);
73 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_JPEG", IMAGE_FILETYPE_JPEG, CONST_CS | CONST_PERSISTENT);
74 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_PNG", IMAGE_FILETYPE_PNG, CONST_CS | CONST_PERSISTENT);
75 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_SWF", IMAGE_FILETYPE_SWF, CONST_CS | CONST_PERSISTENT);
76 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_PSD", IMAGE_FILETYPE_PSD, CONST_CS | CONST_PERSISTENT);
77 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_BMP", IMAGE_FILETYPE_BMP, CONST_CS | CONST_PERSISTENT);
78 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_TIFF_II", IMAGE_FILETYPE_TIFF_II, CONST_CS | CONST_PERSISTENT);
79 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_TIFF_MM", IMAGE_FILETYPE_TIFF_MM, CONST_CS | CONST_PERSISTENT);
80 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_JPC", IMAGE_FILETYPE_JPC, CONST_CS | CONST_PERSISTENT);
81 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_JP2", IMAGE_FILETYPE_JP2, CONST_CS | CONST_PERSISTENT);
82 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_JPX", IMAGE_FILETYPE_JPX, CONST_CS | CONST_PERSISTENT);
83 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_JB2", IMAGE_FILETYPE_JB2, CONST_CS | CONST_PERSISTENT);
84 : #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
85 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_SWC", IMAGE_FILETYPE_SWC, CONST_CS | CONST_PERSISTENT);
86 : #endif
87 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_IFF", IMAGE_FILETYPE_IFF, CONST_CS | CONST_PERSISTENT);
88 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_WBMP", IMAGE_FILETYPE_WBMP, CONST_CS | CONST_PERSISTENT);
89 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_JPEG2000",IMAGE_FILETYPE_JPC, CONST_CS | CONST_PERSISTENT); /* keep alias */
90 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_XBM", IMAGE_FILETYPE_XBM, CONST_CS | CONST_PERSISTENT);
91 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_ICO", IMAGE_FILETYPE_ICO, CONST_CS | CONST_PERSISTENT);
92 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_UNKNOWN", IMAGE_FILETYPE_UNKNOWN, CONST_CS | CONST_PERSISTENT);
93 17633 : REGISTER_LONG_CONSTANT("IMAGETYPE_COUNT", IMAGE_FILETYPE_COUNT, CONST_CS | CONST_PERSISTENT);
94 17633 : return SUCCESS;
95 : }
96 : /* }}} */
97 :
98 : /* {{{ php_handle_gif
99 : * routine to handle GIF files. If only everything were that easy... ;} */
100 : static struct gfxinfo *php_handle_gif (php_stream * stream TSRMLS_DC)
101 5 : {
102 5 : struct gfxinfo *result = NULL;
103 : unsigned char dim[5];
104 :
105 5 : if (php_stream_seek(stream, 3, SEEK_CUR))
106 0 : return NULL;
107 :
108 5 : if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
109 0 : return NULL;
110 :
111 5 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
112 5 : result->width = (unsigned int)dim[0] | (((unsigned int)dim[1])<<8);
113 5 : result->height = (unsigned int)dim[2] | (((unsigned int)dim[3])<<8);
114 5 : result->bits = dim[4]&0x80 ? ((((unsigned int)dim[4])&0x07) + 1) : 0;
115 5 : result->channels = 3; /* allways */
116 :
117 5 : return result;
118 : }
119 : /* }}} */
120 :
121 : /* {{{ php_handle_psd
122 : */
123 : static struct gfxinfo *php_handle_psd (php_stream * stream TSRMLS_DC)
124 2 : {
125 2 : struct gfxinfo *result = NULL;
126 : unsigned char dim[8];
127 :
128 2 : if (php_stream_seek(stream, 11, SEEK_CUR))
129 0 : return NULL;
130 :
131 2 : if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
132 0 : return NULL;
133 :
134 2 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
135 2 : result->height = (((unsigned int)dim[0]) << 24) + (((unsigned int)dim[1]) << 16) + (((unsigned int)dim[2]) << 8) + ((unsigned int)dim[3]);
136 2 : result->width = (((unsigned int)dim[4]) << 24) + (((unsigned int)dim[5]) << 16) + (((unsigned int)dim[6]) << 8) + ((unsigned int)dim[7]);
137 :
138 2 : return result;
139 : }
140 : /* }}} */
141 :
142 : /* {{{ php_handle_bmp
143 : */
144 : static struct gfxinfo *php_handle_bmp (php_stream * stream TSRMLS_DC)
145 3 : {
146 3 : struct gfxinfo *result = NULL;
147 : unsigned char dim[16];
148 : int size;
149 :
150 3 : if (php_stream_seek(stream, 11, SEEK_CUR))
151 0 : return NULL;
152 :
153 3 : if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
154 0 : return NULL;
155 :
156 3 : size = (((unsigned int)dim[ 3]) << 24) + (((unsigned int)dim[ 2]) << 16) + (((unsigned int)dim[ 1]) << 8) + ((unsigned int) dim[ 0]);
157 3 : if (size == 12) {
158 0 : result = (struct gfxinfo *) ecalloc (1, sizeof(struct gfxinfo));
159 0 : result->width = (((unsigned int)dim[ 5]) << 8) + ((unsigned int) dim[ 4]);
160 0 : result->height = (((unsigned int)dim[ 7]) << 8) + ((unsigned int) dim[ 6]);
161 0 : result->bits = ((unsigned int)dim[11]);
162 6 : } else if (size > 12 && (size <= 64 || size == 108)) {
163 3 : result = (struct gfxinfo *) ecalloc (1, sizeof(struct gfxinfo));
164 3 : result->width = (((unsigned int)dim[ 7]) << 24) + (((unsigned int)dim[ 6]) << 16) + (((unsigned int)dim[ 5]) << 8) + ((unsigned int) dim[ 4]);
165 3 : result->height = (((unsigned int)dim[11]) << 24) + (((unsigned int)dim[10]) << 16) + (((unsigned int)dim[ 9]) << 8) + ((unsigned int) dim[ 8]);
166 3 : result->bits = (((unsigned int)dim[15]) << 8) + ((unsigned int)dim[14]);
167 : } else {
168 0 : return NULL;
169 : }
170 :
171 3 : return result;
172 : }
173 : /* }}} */
174 :
175 : /* {{{ php_swf_get_bits
176 : * routines to handle SWF files. */
177 : static unsigned long int php_swf_get_bits (unsigned char* buffer, unsigned int pos, unsigned int count)
178 30 : {
179 : unsigned int loop;
180 30 : unsigned long int result = 0;
181 :
182 412 : for (loop = pos; loop < pos + count; loop++)
183 : {
184 382 : result = result +
185 : ((((buffer[loop / 8]) >> (7 - (loop % 8))) & 0x01) << (count - (loop - pos) - 1));
186 : }
187 30 : return result;
188 : }
189 : /* }}} */
190 :
191 : #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
192 : /* {{{ php_handle_swc
193 : */
194 : static struct gfxinfo *php_handle_swc(php_stream * stream TSRMLS_DC)
195 3 : {
196 3 : struct gfxinfo *result = NULL;
197 :
198 : long bits;
199 : unsigned char a[64];
200 3 : unsigned long len=64, szlength;
201 3 : int factor=1,maxfactor=16;
202 3 : int slength, status=0;
203 3 : char *b, *buf=NULL, *bufz=NULL;
204 :
205 3 : b = ecalloc (1, len + 1);
206 :
207 3 : if (php_stream_seek(stream, 5, SEEK_CUR))
208 0 : return NULL;
209 :
210 3 : if (php_stream_read(stream, a, sizeof(a)) != sizeof(a))
211 0 : return NULL;
212 :
213 3 : if (uncompress(b, &len, a, sizeof(a)) != Z_OK) {
214 : /* failed to decompress the file, will try reading the rest of the file */
215 3 : if (php_stream_seek(stream, 8, SEEK_SET))
216 0 : return NULL;
217 :
218 3 : slength = php_stream_copy_to_mem(stream, &bufz, PHP_STREAM_COPY_ALL, 0);
219 :
220 : /*
221 : * zlib::uncompress() wants to know the output data length
222 : * if none was given as a parameter
223 : * we try from input length * 2 up to input length * 2^8
224 : * doubling it whenever it wasn't big enough
225 : * that should be eneugh for all real life cases
226 : */
227 :
228 : do {
229 3 : szlength=slength*(1<<factor++);
230 3 : buf = (char *) erealloc(buf,szlength);
231 3 : status = uncompress(buf, &szlength, bufz, slength);
232 3 : } while ((status==Z_BUF_ERROR)&&(factor<maxfactor));
233 :
234 3 : if (bufz) {
235 3 : pefree(bufz, 0);
236 : }
237 :
238 3 : if (status == Z_OK) {
239 3 : memcpy(b, buf, len);
240 : }
241 :
242 3 : if (buf) {
243 3 : efree(buf);
244 : }
245 : }
246 :
247 3 : if (!status) {
248 3 : result = (struct gfxinfo *) ecalloc (1, sizeof (struct gfxinfo));
249 3 : bits = php_swf_get_bits (b, 0, 5);
250 3 : result->width = (php_swf_get_bits (b, 5 + bits, bits) -
251 : php_swf_get_bits (b, 5, bits)) / 20;
252 3 : result->height = (php_swf_get_bits (b, 5 + (3 * bits), bits) -
253 : php_swf_get_bits (b, 5 + (2 * bits), bits)) / 20;
254 : } else {
255 0 : result = NULL;
256 : }
257 :
258 3 : efree (b);
259 3 : return result;
260 : }
261 : /* }}} */
262 : #endif
263 :
264 : /* {{{ php_handle_swf
265 : */
266 : static struct gfxinfo *php_handle_swf (php_stream * stream TSRMLS_DC)
267 3 : {
268 3 : struct gfxinfo *result = NULL;
269 : long bits;
270 : unsigned char a[32];
271 :
272 3 : if (php_stream_seek(stream, 5, SEEK_CUR))
273 0 : return NULL;
274 :
275 3 : if (php_stream_read(stream, a, sizeof(a)) != sizeof(a))
276 0 : return NULL;
277 :
278 3 : result = (struct gfxinfo *) ecalloc (1, sizeof (struct gfxinfo));
279 3 : bits = php_swf_get_bits (a, 0, 5);
280 3 : result->width = (php_swf_get_bits (a, 5 + bits, bits) -
281 : php_swf_get_bits (a, 5, bits)) / 20;
282 3 : result->height = (php_swf_get_bits (a, 5 + (3 * bits), bits) -
283 : php_swf_get_bits (a, 5 + (2 * bits), bits)) / 20;
284 3 : result->bits = 0;
285 3 : result->channels = 0;
286 3 : return result;
287 : }
288 : /* }}} */
289 :
290 : /* {{{ php_handle_png
291 : * routine to handle PNG files */
292 : static struct gfxinfo *php_handle_png (php_stream * stream TSRMLS_DC)
293 7 : {
294 7 : struct gfxinfo *result = NULL;
295 : unsigned char dim[9];
296 : /* Width: 4 bytes
297 : * Height: 4 bytes
298 : * Bit depth: 1 byte
299 : * Color type: 1 byte
300 : * Compression method: 1 byte
301 : * Filter method: 1 byte
302 : * Interlace method: 1 byte
303 : */
304 :
305 7 : if (php_stream_seek(stream, 8, SEEK_CUR))
306 0 : return NULL;
307 :
308 7 : if((php_stream_read(stream, dim, sizeof(dim))) < sizeof(dim))
309 0 : return NULL;
310 :
311 7 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
312 7 : result->width = (((unsigned int)dim[0]) << 24) + (((unsigned int)dim[1]) << 16) + (((unsigned int)dim[2]) << 8) + ((unsigned int)dim[3]);
313 7 : result->height = (((unsigned int)dim[4]) << 24) + (((unsigned int)dim[5]) << 16) + (((unsigned int)dim[6]) << 8) + ((unsigned int)dim[7]);
314 7 : result->bits = (unsigned int)dim[8];
315 7 : return result;
316 : }
317 : /* }}} */
318 :
319 : /* routines to handle JPEG data */
320 :
321 : /* some defines for the different JPEG block types */
322 : #define M_SOF0 0xC0 /* Start Of Frame N */
323 : #define M_SOF1 0xC1 /* N indicates which compression process */
324 : #define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */
325 : #define M_SOF3 0xC3
326 : #define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */
327 : #define M_SOF6 0xC6
328 : #define M_SOF7 0xC7
329 : #define M_SOF9 0xC9
330 : #define M_SOF10 0xCA
331 : #define M_SOF11 0xCB
332 : #define M_SOF13 0xCD
333 : #define M_SOF14 0xCE
334 : #define M_SOF15 0xCF
335 : #define M_SOI 0xD8
336 : #define M_EOI 0xD9 /* End Of Image (end of datastream) */
337 : #define M_SOS 0xDA /* Start Of Scan (begins compressed data) */
338 : #define M_APP0 0xe0
339 : #define M_APP1 0xe1
340 : #define M_APP2 0xe2
341 : #define M_APP3 0xe3
342 : #define M_APP4 0xe4
343 : #define M_APP5 0xe5
344 : #define M_APP6 0xe6
345 : #define M_APP7 0xe7
346 : #define M_APP8 0xe8
347 : #define M_APP9 0xe9
348 : #define M_APP10 0xea
349 : #define M_APP11 0xeb
350 : #define M_APP12 0xec
351 : #define M_APP13 0xed
352 : #define M_APP14 0xee
353 : #define M_APP15 0xef
354 : #define M_COM 0xFE /* COMment */
355 :
356 : #define M_PSEUDO 0xFFD8 /* pseudo marker for start of image(byte 0) */
357 :
358 : /* {{{ php_read2
359 : */
360 : static unsigned short php_read2(php_stream * stream TSRMLS_DC)
361 228 : {
362 : unsigned char a[2];
363 :
364 : /* just return 0 if we hit the end-of-file */
365 228 : if((php_stream_read(stream, a, sizeof(a))) <= 0) return 0;
366 :
367 228 : return (((unsigned short)a[0]) << 8) + ((unsigned short)a[1]);
368 : }
369 : /* }}} */
370 :
371 : /* {{{ php_next_marker
372 : * get next marker byte from file */
373 : static unsigned int php_next_marker(php_stream * stream, int last_marker, int comment_correction, int ff_read TSRMLS_DC)
374 177 : {
375 177 : int a=0, marker;
376 :
377 : /* get marker byte, swallowing possible padding */
378 179 : if (last_marker==M_COM && comment_correction) {
379 : /* some software does not count the length bytes of COM section */
380 : /* one company doing so is very much envolved in JPEG... so we accept too */
381 : /* by the way: some of those companies changed their code now... */
382 2 : comment_correction = 2;
383 : } else {
384 175 : last_marker = 0;
385 175 : comment_correction = 0;
386 : }
387 177 : if (ff_read) {
388 30 : a = 1; /* already read 0xff in filetype detection */
389 : }
390 : do {
391 326 : if ((marker = php_stream_getc(stream)) == EOF)
392 : {
393 0 : return M_EOI;/* we hit EOF */
394 : }
395 326 : if (last_marker==M_COM && comment_correction>0)
396 : {
397 3 : if (marker != 0xFF)
398 : {
399 2 : marker = 0xff;
400 2 : comment_correction--;
401 : } else {
402 1 : last_marker = M_PSEUDO; /* stop skipping non 0xff for M_COM */
403 : }
404 : }
405 326 : if (++a > 25)
406 : {
407 : /* who knows the maxim amount of 0xff? though 7 */
408 : /* but found other implementations */
409 0 : return M_EOI;
410 : }
411 326 : } while (marker == 0xff);
412 177 : if (a < 2)
413 : {
414 0 : return M_EOI; /* at least one 0xff is needed before marker code */
415 : }
416 177 : if ( last_marker==M_COM && comment_correction)
417 : {
418 0 : return M_EOI; /* ah illegal: char after COM section not 0xFF */
419 : }
420 177 : return (unsigned int)marker;
421 : }
422 : /* }}} */
423 :
424 : /* {{{ php_skip_variable
425 : * skip over a variable-length block; assumes proper length marker */
426 : static int php_skip_variable(php_stream * stream TSRMLS_DC)
427 91 : {
428 91 : off_t length = ((unsigned int)php_read2(stream TSRMLS_CC));
429 :
430 91 : if (length < 2) {
431 0 : return 0;
432 : }
433 91 : length = length - 2;
434 91 : php_stream_seek(stream, (long)length, SEEK_CUR);
435 91 : return 1;
436 : }
437 : /* }}} */
438 :
439 : /* {{{ php_read_APP
440 : */
441 : static int php_read_APP(php_stream * stream, unsigned int marker, zval *info TSRMLS_DC)
442 29 : {
443 : unsigned short length;
444 : unsigned char *buffer;
445 : unsigned char markername[16];
446 : zval *tmp;
447 :
448 29 : length = php_read2(stream TSRMLS_CC);
449 29 : if (length < 2) {
450 0 : return 0;
451 : }
452 29 : length -= 2; /* length includes itself */
453 :
454 29 : buffer = emalloc(length);
455 :
456 29 : if (php_stream_read(stream, buffer, (long) length) <= 0) {
457 0 : efree(buffer);
458 0 : return 0;
459 : }
460 :
461 29 : snprintf(markername, sizeof(markername), "APP%d", marker - M_APP0);
462 :
463 29 : if (zend_hash_find(Z_ARRVAL_P(info), markername, strlen(markername)+1, (void **) &tmp) == FAILURE) {
464 : /* XXX we onyl catch the 1st tag of it's kind! */
465 29 : add_assoc_stringl(info, markername, buffer, length, 1);
466 : }
467 :
468 29 : efree(buffer);
469 29 : return 1;
470 : }
471 : /* }}} */
472 :
473 : /* {{{ php_handle_jpeg
474 : main loop to parse JPEG structure */
475 : static struct gfxinfo *php_handle_jpeg (php_stream * stream, zval *info TSRMLS_DC)
476 30 : {
477 30 : struct gfxinfo *result = NULL;
478 30 : unsigned int marker = M_PSEUDO;
479 30 : unsigned short length, ff_read=1;
480 :
481 : for (;;) {
482 177 : marker = php_next_marker(stream, marker, 1, ff_read TSRMLS_CC);
483 177 : ff_read = 0;
484 177 : switch (marker) {
485 : case M_SOF0:
486 : case M_SOF1:
487 : case M_SOF2:
488 : case M_SOF3:
489 : case M_SOF5:
490 : case M_SOF6:
491 : case M_SOF7:
492 : case M_SOF9:
493 : case M_SOF10:
494 : case M_SOF11:
495 : case M_SOF13:
496 : case M_SOF14:
497 : case M_SOF15:
498 30 : if (result == NULL) {
499 : /* handle SOFn block */
500 30 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
501 30 : length = php_read2(stream TSRMLS_CC);
502 30 : result->bits = php_stream_getc(stream);
503 30 : result->height = php_read2(stream TSRMLS_CC);
504 30 : result->width = php_read2(stream TSRMLS_CC);
505 30 : result->channels = php_stream_getc(stream);
506 30 : if (!info || length < 8) { /* if we don't want an extanded info -> return */
507 3 : return result;
508 : }
509 27 : if (php_stream_seek(stream, length - 8, SEEK_CUR)) { /* file error after info */
510 0 : return result;
511 : }
512 : } else {
513 0 : if (!php_skip_variable(stream TSRMLS_CC)) {
514 0 : return result;
515 : }
516 : }
517 27 : break;
518 :
519 : case M_APP0:
520 : case M_APP1:
521 : case M_APP2:
522 : case M_APP3:
523 : case M_APP4:
524 : case M_APP5:
525 : case M_APP6:
526 : case M_APP7:
527 : case M_APP8:
528 : case M_APP9:
529 : case M_APP10:
530 : case M_APP11:
531 : case M_APP12:
532 : case M_APP13:
533 : case M_APP14:
534 : case M_APP15:
535 32 : if (info) {
536 29 : if (!php_read_APP(stream, marker, info TSRMLS_CC)) { /* read all the app markes... */
537 0 : return result;
538 : }
539 : } else {
540 3 : if (!php_skip_variable(stream TSRMLS_CC)) {
541 0 : return result;
542 : }
543 : }
544 32 : break;
545 :
546 : case M_SOS:
547 : case M_EOI:
548 27 : return result; /* we're about to hit image data, or are at EOF. stop processing. */
549 :
550 : default:
551 88 : if (!php_skip_variable(stream TSRMLS_CC)) { /* anything else isn't interesting */
552 0 : return result;
553 : }
554 : break;
555 : }
556 147 : }
557 :
558 : return result; /* perhaps image broken -> no info but size */
559 : }
560 : /* }}} */
561 :
562 : /* {{{ php_read4
563 : */
564 : static unsigned int php_read4(php_stream * stream TSRMLS_DC)
565 21 : {
566 : unsigned char a[4];
567 :
568 : /* just return 0 if we hit the end-of-file */
569 21 : if ((php_stream_read(stream, a, sizeof(a))) != sizeof(a)) return 0;
570 :
571 21 : return (((unsigned int)a[0]) << 24)
572 : + (((unsigned int)a[1]) << 16)
573 : + (((unsigned int)a[2]) << 8)
574 : + (((unsigned int)a[3]));
575 : }
576 : /* }}} */
577 :
578 : /* {{{ JPEG 2000 Marker Codes */
579 : #define JPEG2000_MARKER_PREFIX 0xFF /* All marker codes start with this */
580 : #define JPEG2000_MARKER_SOC 0x4F /* Start of Codestream */
581 : #define JPEG2000_MARKER_SOT 0x90 /* Start of Tile part */
582 : #define JPEG2000_MARKER_SOD 0x93 /* Start of Data */
583 : #define JPEG2000_MARKER_EOC 0xD9 /* End of Codestream */
584 : #define JPEG2000_MARKER_SIZ 0x51 /* Image and tile size */
585 : #define JPEG2000_MARKER_COD 0x52 /* Coding style default */
586 : #define JPEG2000_MARKER_COC 0x53 /* Coding style component */
587 : #define JPEG2000_MARKER_RGN 0x5E /* Region of interest */
588 : #define JPEG2000_MARKER_QCD 0x5C /* Quantization default */
589 : #define JPEG2000_MARKER_QCC 0x5D /* Quantization component */
590 : #define JPEG2000_MARKER_POC 0x5F /* Progression order change */
591 : #define JPEG2000_MARKER_TLM 0x55 /* Tile-part lengths */
592 : #define JPEG2000_MARKER_PLM 0x57 /* Packet length, main header */
593 : #define JPEG2000_MARKER_PLT 0x58 /* Packet length, tile-part header */
594 : #define JPEG2000_MARKER_PPM 0x60 /* Packed packet headers, main header */
595 : #define JPEG2000_MARKER_PPT 0x61 /* Packed packet headers, tile part header */
596 : #define JPEG2000_MARKER_SOP 0x91 /* Start of packet */
597 : #define JPEG2000_MARKER_EPH 0x92 /* End of packet header */
598 : #define JPEG2000_MARKER_CRG 0x63 /* Component registration */
599 : #define JPEG2000_MARKER_COM 0x64 /* Comment */
600 : /* }}} */
601 :
602 : /* {{{ php_handle_jpc
603 : Main loop to parse JPEG2000 raw codestream structure */
604 : static struct gfxinfo *php_handle_jpc(php_stream * stream TSRMLS_DC)
605 6 : {
606 6 : struct gfxinfo *result = NULL;
607 : unsigned short dummy_short;
608 : int highest_bit_depth, bit_depth;
609 : unsigned char first_marker_id;
610 : unsigned int i;
611 :
612 : /* JPEG 2000 components can be vastly different from one another.
613 : Each component can be sampled at a different resolution, use
614 : a different colour space, have a seperate colour depth, and
615 : be compressed totally differently! This makes giving a single
616 : "bit depth" answer somewhat problematic. For this implementation
617 : we'll use the highest depth encountered. */
618 :
619 : /* Get the single byte that remains after the file type indentification */
620 6 : first_marker_id = php_stream_getc(stream);
621 :
622 : /* Ensure that this marker is SIZ (as is mandated by the standard) */
623 6 : if (first_marker_id != JPEG2000_MARKER_SIZ) {
624 0 : php_error_docref(NULL TSRMLS_CC, E_WARNING, "JPEG2000 codestream corrupt(Expected SIZ marker not found after SOC)");
625 0 : return NULL;
626 : }
627 :
628 6 : result = (struct gfxinfo *)ecalloc(1, sizeof(struct gfxinfo));
629 :
630 6 : dummy_short = php_read2(stream TSRMLS_CC); /* Lsiz */
631 6 : dummy_short = php_read2(stream TSRMLS_CC); /* Rsiz */
632 6 : result->width = php_read4(stream TSRMLS_CC); /* Xsiz */
633 6 : result->height = php_read4(stream TSRMLS_CC); /* Ysiz */
634 :
635 : #if MBO_0
636 : php_read4(stream TSRMLS_CC); /* XOsiz */
637 : php_read4(stream TSRMLS_CC); /* YOsiz */
638 : php_read4(stream TSRMLS_CC); /* XTsiz */
639 : php_read4(stream TSRMLS_CC); /* YTsiz */
640 : php_read4(stream TSRMLS_CC); /* XTOsiz */
641 : php_read4(stream TSRMLS_CC); /* YTOsiz */
642 : #else
643 6 : if (php_stream_seek(stream, 24, SEEK_CUR)) {
644 0 : efree(result);
645 0 : return NULL;
646 : }
647 : #endif
648 :
649 6 : result->channels = php_read2(stream TSRMLS_CC); /* Csiz */
650 6 : if (result->channels < 0 || result->channels > 256) {
651 0 : efree(result);
652 0 : return NULL;
653 : }
654 :
655 : /* Collect bit depth info */
656 6 : highest_bit_depth = 0;
657 24 : for (i = 0; i < result->channels; i++) {
658 18 : bit_depth = php_stream_getc(stream); /* Ssiz[i] */
659 18 : bit_depth++;
660 18 : if (bit_depth > highest_bit_depth) {
661 6 : highest_bit_depth = bit_depth;
662 : }
663 :
664 18 : php_stream_getc(stream); /* XRsiz[i] */
665 18 : php_stream_getc(stream); /* YRsiz[i] */
666 : }
667 :
668 6 : result->bits = highest_bit_depth;
669 :
670 6 : return result;
671 : }
672 : /* }}} */
673 :
674 : /* {{{ php_handle_jp2
675 : main loop to parse JPEG 2000 JP2 wrapper format structure */
676 : static struct gfxinfo *php_handle_jp2(php_stream *stream TSRMLS_DC)
677 3 : {
678 3 : struct gfxinfo *result = NULL;
679 : unsigned int box_length;
680 : unsigned int box_type;
681 3 : char jp2c_box_id[] = {(char)0x6a, (char)0x70, (char)0x32, (char)0x63};
682 :
683 : /* JP2 is a wrapper format for JPEG 2000. Data is contained within "boxes".
684 : Boxes themselves can be contained within "super-boxes". Super-Boxes can
685 : contain super-boxes which provides us with a hierarchical storage system.
686 :
687 : It is valid for a JP2 file to contain multiple individual codestreams.
688 : We'll just look for the first codestream at the root of the box structure
689 : and handle that.
690 : */
691 :
692 : for (;;)
693 : {
694 9 : box_length = php_read4(stream TSRMLS_CC); /* LBox */
695 : /* TBox */
696 9 : if (php_stream_read(stream, (void *)&box_type, sizeof(box_type)) != sizeof(box_type)) {
697 : /* Use this as a general "out of stream" error */
698 0 : break;
699 : }
700 :
701 9 : if (box_length == 1) {
702 : /* We won't handle XLBoxes */
703 0 : return NULL;
704 : }
705 :
706 9 : if (!memcmp(&box_type, jp2c_box_id, 4))
707 : {
708 : /* Skip the first 3 bytes to emulate the file type examination */
709 3 : php_stream_seek(stream, 3, SEEK_CUR);
710 :
711 3 : result = php_handle_jpc(stream TSRMLS_CC);
712 3 : break;
713 : }
714 :
715 : /* Stop if this was the last box */
716 6 : if ((int)box_length <= 0) {
717 0 : break;
718 : }
719 :
720 : /* Skip over LBox (Which includes both TBox and LBox itself */
721 6 : if (php_stream_seek(stream, box_length - 8, SEEK_CUR)) {
722 0 : break;
723 : }
724 6 : }
725 :
726 3 : if (result == NULL) {
727 0 : php_error_docref(NULL TSRMLS_CC, E_WARNING, "JP2 file has no codestreams at root level");
728 : }
729 :
730 3 : return result;
731 : }
732 : /* }}} */
733 :
734 : /* {{{ tiff constants
735 : */
736 : PHPAPI const int php_tiff_bytes_per_format[] = {0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8};
737 :
738 : /* uncompressed only */
739 : #define TAG_IMAGEWIDTH 0x0100
740 : #define TAG_IMAGEHEIGHT 0x0101
741 : /* compressed images only */
742 : #define TAG_COMP_IMAGEWIDTH 0xA002
743 : #define TAG_COMP_IMAGEHEIGHT 0xA003
744 :
745 : #define TAG_FMT_BYTE 1
746 : #define TAG_FMT_STRING 2
747 : #define TAG_FMT_USHORT 3
748 : #define TAG_FMT_ULONG 4
749 : #define TAG_FMT_URATIONAL 5
750 : #define TAG_FMT_SBYTE 6
751 : #define TAG_FMT_UNDEFINED 7
752 : #define TAG_FMT_SSHORT 8
753 : #define TAG_FMT_SLONG 9
754 : #define TAG_FMT_SRATIONAL 10
755 : #define TAG_FMT_SINGLE 11
756 : #define TAG_FMT_DOUBLE 12
757 : /* }}} */
758 :
759 : /* {{{ php_ifd_get16u
760 : * Convert a 16 bit unsigned value from file's native byte order */
761 : static int php_ifd_get16u(void *Short, int motorola_intel)
762 150 : {
763 150 : if (motorola_intel) {
764 30 : return (((unsigned char *)Short)[0] << 8) | ((unsigned char *)Short)[1];
765 : } else {
766 120 : return (((unsigned char *)Short)[1] << 8) | ((unsigned char *)Short)[0];
767 : }
768 : }
769 : /* }}} */
770 :
771 : /* {{{ php_ifd_get16s
772 : * Convert a 16 bit signed value from file's native byte order */
773 : static signed short php_ifd_get16s(void *Short, int motorola_intel)
774 6 : {
775 6 : return (signed short)php_ifd_get16u(Short, motorola_intel);
776 : }
777 : /* }}} */
778 :
779 : /* {{{ php_ifd_get32s
780 : * Convert a 32 bit signed value from file's native byte order */
781 : static int php_ifd_get32s(void *Long, int motorola_intel)
782 23 : {
783 23 : if (motorola_intel) {
784 8 : return ((( char *)Long)[0] << 24) | (((unsigned char *)Long)[1] << 16)
785 : | (((unsigned char *)Long)[2] << 8 ) | (((unsigned char *)Long)[3] << 0 );
786 : } else {
787 15 : return ((( char *)Long)[3] << 24) | (((unsigned char *)Long)[2] << 16)
788 : | (((unsigned char *)Long)[1] << 8 ) | (((unsigned char *)Long)[0] << 0 );
789 : }
790 : }
791 : /* }}} */
792 :
793 : /* {{{ php_ifd_get32u
794 : * Convert a 32 bit unsigned value from file's native byte order */
795 : static unsigned php_ifd_get32u(void *Long, int motorola_intel)
796 17 : {
797 17 : return (unsigned)php_ifd_get32s(Long, motorola_intel) & 0xffffffff;
798 : }
799 : /* }}} */
800 :
801 : /* {{{ php_handle_tiff
802 : main loop to parse TIFF structure */
803 : static struct gfxinfo *php_handle_tiff (php_stream * stream, zval *info, int motorola_intel TSRMLS_DC)
804 4 : {
805 4 : struct gfxinfo *result = NULL;
806 : int i, num_entries;
807 : unsigned char *dir_entry;
808 4 : size_t ifd_size, dir_size, entry_value, width=0, height=0, ifd_addr;
809 : int entry_tag , entry_type;
810 : char *ifd_data, ifd_ptr[4];
811 :
812 4 : if (php_stream_read(stream, ifd_ptr, 4) != 4)
813 0 : return NULL;
814 4 : ifd_addr = php_ifd_get32u(ifd_ptr, motorola_intel);
815 4 : if (php_stream_seek(stream, ifd_addr-8, SEEK_CUR))
816 0 : return NULL;
817 4 : ifd_size = 2;
818 4 : ifd_data = emalloc(ifd_size);
819 4 : if (php_stream_read(stream, ifd_data, 2) != 2) {
820 0 : efree(ifd_data);
821 0 : return NULL;
822 : }
823 4 : num_entries = php_ifd_get16u(ifd_data, motorola_intel);
824 4 : dir_size = 2/*num dir entries*/ +12/*length of entry*/*num_entries +4/* offset to next ifd (points to thumbnail or NULL)*/;
825 4 : ifd_size = dir_size;
826 4 : ifd_data = erealloc(ifd_data,ifd_size);
827 4 : if (php_stream_read(stream, ifd_data+2, dir_size-2) != dir_size-2) {
828 0 : efree(ifd_data);
829 0 : return NULL;
830 : }
831 : /* now we have the directory we can look how long it should be */
832 4 : ifd_size = dir_size;
833 57 : for(i=0;i<num_entries;i++) {
834 53 : dir_entry = ifd_data+2+i*12;
835 53 : entry_tag = php_ifd_get16u(dir_entry+0, motorola_intel);
836 53 : entry_type = php_ifd_get16u(dir_entry+2, motorola_intel);
837 53 : switch(entry_type) {
838 : case TAG_FMT_BYTE:
839 : case TAG_FMT_SBYTE:
840 0 : entry_value = (size_t)(dir_entry[8]);
841 0 : break;
842 : case TAG_FMT_USHORT:
843 34 : entry_value = php_ifd_get16u(dir_entry+8, motorola_intel);
844 34 : break;
845 : case TAG_FMT_SSHORT:
846 0 : entry_value = php_ifd_get16s(dir_entry+8, motorola_intel);
847 0 : break;
848 : case TAG_FMT_ULONG:
849 13 : entry_value = php_ifd_get32u(dir_entry+8, motorola_intel);
850 13 : break;
851 : case TAG_FMT_SLONG:
852 0 : entry_value = php_ifd_get32s(dir_entry+8, motorola_intel);
853 0 : break;
854 : default:
855 6 : continue;
856 : }
857 47 : switch(entry_tag) {
858 : case TAG_IMAGEWIDTH:
859 : case TAG_COMP_IMAGEWIDTH:
860 4 : width = entry_value;
861 4 : break;
862 : case TAG_IMAGEHEIGHT:
863 : case TAG_COMP_IMAGEHEIGHT:
864 4 : height = entry_value;
865 : break;
866 : }
867 : }
868 4 : efree(ifd_data);
869 4 : if ( width && height) {
870 : /* not the same when in for-loop */
871 4 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
872 4 : result->height = height;
873 4 : result->width = width;
874 4 : result->bits = 0;
875 4 : result->channels = 0;
876 4 : return result;
877 : }
878 0 : return NULL;
879 : }
880 : /* }}} */
881 :
882 : /* {{{ php_handle_psd
883 : */
884 : static struct gfxinfo *php_handle_iff(php_stream * stream TSRMLS_DC)
885 3 : {
886 : struct gfxinfo * result;
887 : unsigned char a[10];
888 : int chunkId;
889 : int size;
890 : short width, height, bits;
891 :
892 3 : if (php_stream_read(stream, a, 8) != 8) {
893 0 : return NULL;
894 : }
895 3 : if (strncmp(a+4, "ILBM", 4) && strncmp(a+4, "PBM ", 4)) {
896 0 : return NULL;
897 : }
898 :
899 : /* loop chunks to find BMHD chunk */
900 : do {
901 3 : if (php_stream_read(stream, a, 8) != 8) {
902 0 : return NULL;
903 : }
904 3 : chunkId = php_ifd_get32s(a+0, 1);
905 3 : size = php_ifd_get32s(a+4, 1);
906 3 : if (size < 0) {
907 0 : return NULL;
908 : }
909 3 : if ((size & 1) == 1) {
910 0 : size++;
911 : }
912 3 : if (chunkId == 0x424d4844) { /* BMHD chunk */
913 3 : if (size < 9 || php_stream_read(stream, a, 9) != 9) {
914 0 : return NULL;
915 : }
916 3 : width = php_ifd_get16s(a+0, 1);
917 3 : height = php_ifd_get16s(a+2, 1);
918 3 : bits = a[8] & 0xff;
919 3 : if (width > 0 && height > 0 && bits > 0 && bits < 33) {
920 3 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
921 3 : result->width = width;
922 3 : result->height = height;
923 3 : result->bits = bits;
924 3 : result->channels = 0;
925 3 : return result;
926 : }
927 : } else {
928 0 : if (php_stream_seek(stream, size, SEEK_CUR)) {
929 0 : return NULL;
930 : }
931 : }
932 0 : } while (1);
933 : }
934 : /* }}} */
935 :
936 : /* {{{ php_get_wbmp
937 : * int WBMP file format type
938 : * byte Header Type
939 : * byte Extended Header
940 : * byte Header Data (type 00 = multibyte)
941 : * byte Header Data (type 11 = name/pairs)
942 : * int Number of columns
943 : * int Number of rows
944 : */
945 : static int php_get_wbmp(php_stream *stream, struct gfxinfo **result, int check TSRMLS_DC)
946 11 : {
947 11 : int i, width = 0, height = 0;
948 :
949 11 : if (php_stream_rewind(stream)) {
950 0 : return 0;
951 : }
952 :
953 : /* get type */
954 11 : if (php_stream_getc(stream) != 0) {
955 9 : return 0;
956 : }
957 :
958 : /* skip header */
959 : do {
960 2 : i = php_stream_getc(stream);
961 2 : if (i < 0) {
962 0 : return 0;
963 : }
964 2 : } while (i & 0x80);
965 :
966 : /* get width */
967 : do {
968 2 : i = php_stream_getc(stream);
969 2 : if (i < 0) {
970 0 : return 0;
971 : }
972 2 : width = (width << 7) | (i & 0x7f);
973 2 : } while (i & 0x80);
974 :
975 : /* get height */
976 : do {
977 2 : i = php_stream_getc(stream);
978 2 : if (i < 0) {
979 0 : return 0;
980 : }
981 2 : height = (height << 7) | (i & 0x7f);
982 2 : } while (i & 0x80);
983 :
984 : /* maximum valid sizes for wbmp (although 127x127 may be a more accurate one) */
985 2 : if (!height || !width || height > 2048 || width > 2048) {
986 0 : return 0;
987 : }
988 :
989 2 : if (!check) {
990 1 : (*result)->width = width;
991 1 : (*result)->height = height;
992 : }
993 :
994 2 : return IMAGE_FILETYPE_WBMP;
995 : }
996 : /* }}} */
997 :
998 : /* {{{ php_handle_wbmp
999 : */
1000 : static struct gfxinfo *php_handle_wbmp(php_stream * stream TSRMLS_DC)
1001 1 : {
1002 1 : struct gfxinfo *result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
1003 :
1004 1 : if (!php_get_wbmp(stream, &result, 0 TSRMLS_CC)) {
1005 0 : efree(result);
1006 0 : return NULL;
1007 : }
1008 :
1009 1 : return result;
1010 : }
1011 : /* }}} */
1012 :
1013 : /* {{{ php_get_xbm
1014 : */
1015 : static int php_get_xbm(php_stream *stream, struct gfxinfo **result TSRMLS_DC)
1016 10 : {
1017 : char *fline;
1018 : char *iname;
1019 : char *type;
1020 : int value;
1021 10 : unsigned int width = 0, height = 0;
1022 :
1023 10 : if (result) {
1024 1 : *result = NULL;
1025 : }
1026 10 : if (php_stream_rewind(stream)) {
1027 0 : return 0;
1028 : }
1029 30 : while ((fline=php_stream_gets(stream, NULL, 0)) != NULL) {
1030 12 : iname = estrdup(fline); /* simple way to get necessary buffer of required size */
1031 12 : if (sscanf(fline, "#define %s %d", iname, &value) == 2) {
1032 4 : if (!(type = strrchr(iname, '_'))) {
1033 0 : type = iname;
1034 : } else {
1035 4 : type++;
1036 : }
1037 :
1038 4 : if (!strcmp("width", type)) {
1039 2 : width = (unsigned int) value;
1040 2 : if (height) {
1041 0 : efree(iname);
1042 0 : break;
1043 : }
1044 : }
1045 4 : if (!strcmp("height", type)) {
1046 2 : height = (unsigned int) value;
1047 2 : if (width) {
1048 2 : efree(iname);
1049 2 : break;
1050 : }
1051 : }
1052 : }
1053 10 : efree(fline);
1054 10 : efree(iname);
1055 : }
1056 10 : if (fline) {
1057 2 : efree(fline);
1058 : }
1059 :
1060 10 : if (width && height) {
1061 2 : if (result) {
1062 1 : *result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
1063 1 : (*result)->width = width;
1064 1 : (*result)->height = height;
1065 : }
1066 2 : return IMAGE_FILETYPE_XBM;
1067 : }
1068 :
1069 8 : return 0;
1070 : }
1071 : /* }}} */
1072 :
1073 : /* {{{ php_handle_xbm
1074 : */
1075 : static struct gfxinfo *php_handle_xbm(php_stream * stream TSRMLS_DC)
1076 1 : {
1077 : struct gfxinfo *result;
1078 1 : php_get_xbm(stream, &result TSRMLS_CC);
1079 1 : return result;
1080 : }
1081 : /* }}} */
1082 :
1083 : /* {{{ php_handle_ico
1084 : */
1085 : static struct gfxinfo *php_handle_ico(php_stream * stream TSRMLS_DC)
1086 0 : {
1087 0 : struct gfxinfo *result = NULL;
1088 : unsigned char dim[16];
1089 0 : int num_icons = 0;
1090 :
1091 0 : if (php_stream_read(stream, dim, 2) != 2)
1092 0 : return NULL;
1093 :
1094 0 : num_icons = (((unsigned int)dim[1]) << 8) + ((unsigned int) dim[0]);
1095 :
1096 0 : if (num_icons < 1 || num_icons > 255)
1097 0 : return NULL;
1098 :
1099 0 : result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
1100 :
1101 0 : while (num_icons > 0)
1102 : {
1103 0 : if (php_stream_read(stream, dim, sizeof(dim)) != sizeof(dim))
1104 0 : break;
1105 :
1106 0 : if ((((unsigned int)dim[7]) << 8) + ((unsigned int)dim[6]) >= result->bits)
1107 : {
1108 0 : result->width = (unsigned int)dim[0];
1109 0 : result->height = (unsigned int)dim[1];
1110 0 : result->bits = (((unsigned int)dim[7]) << 8) + ((unsigned int)dim[6]);
1111 : }
1112 0 : num_icons--;
1113 : }
1114 :
1115 0 : return result;
1116 : }
1117 : /* }}} */
1118 :
1119 : /* {{{ php_image_type_to_mime_type
1120 : * Convert internal image_type to mime type */
1121 : PHPAPI char * php_image_type_to_mime_type(int image_type)
1122 191 : {
1123 191 : switch( image_type) {
1124 : case IMAGE_FILETYPE_GIF:
1125 14 : return "image/gif";
1126 : case IMAGE_FILETYPE_JPEG:
1127 59 : return "image/jpeg";
1128 : case IMAGE_FILETYPE_PNG:
1129 11 : return "image/png";
1130 : case IMAGE_FILETYPE_SWF:
1131 : case IMAGE_FILETYPE_SWC:
1132 13 : return "application/x-shockwave-flash";
1133 : case IMAGE_FILETYPE_PSD:
1134 6 : return "image/psd";
1135 : case IMAGE_FILETYPE_BMP:
1136 7 : return "image/x-ms-bmp";
1137 : case IMAGE_FILETYPE_TIFF_II:
1138 : case IMAGE_FILETYPE_TIFF_MM:
1139 21 : return "image/tiff";
1140 : case IMAGE_FILETYPE_IFF:
1141 7 : return "image/iff";
1142 : case IMAGE_FILETYPE_WBMP:
1143 4 : return "image/vnd.wap.wbmp";
1144 : case IMAGE_FILETYPE_JPC:
1145 8 : return "application/octet-stream";
1146 : case IMAGE_FILETYPE_JP2:
1147 7 : return "image/jp2";
1148 : case IMAGE_FILETYPE_XBM:
1149 4 : return "image/xbm";
1150 : case IMAGE_FILETYPE_ICO:
1151 3 : return "image/vnd.microsoft.icon";
1152 : default:
1153 : case IMAGE_FILETYPE_UNKNOWN:
1154 27 : return "application/octet-stream"; /* suppose binary format */
1155 : }
1156 : }
1157 : /* }}} */
1158 :
1159 : /* {{{ proto string image_type_to_mime_type(int imagetype)
1160 : Get Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype */
1161 : PHP_FUNCTION(image_type_to_mime_type)
1162 99 : {
1163 : long p_image_type;
1164 :
1165 99 : if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &p_image_type) == FAILURE) {
1166 9 : return;
1167 : }
1168 :
1169 90 : ZVAL_STRING(return_value, (char*)php_image_type_to_mime_type(p_image_type), 1);
1170 : }
1171 : /* }}} */
1172 :
1173 : /* {{{ proto string image_type_to_extension(int imagetype [, bool include_dot])
1174 : Get file extension for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype */
1175 : PHP_FUNCTION(image_type_to_extension)
1176 38 : {
1177 : long image_type;
1178 38 : zend_bool inc_dot=1;
1179 :
1180 38 : if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l|b", &image_type, &inc_dot) == FAILURE) {
1181 4 : RETURN_FALSE;
1182 : }
1183 :
1184 34 : switch (image_type) {
1185 : case IMAGE_FILETYPE_GIF:
1186 2 : RETURN_STRING(".gif" + !inc_dot, 1);
1187 : case IMAGE_FILETYPE_JPEG:
1188 2 : RETURN_STRING(".jpeg" + !inc_dot, 1);
1189 : case IMAGE_FILETYPE_PNG:
1190 2 : RETURN_STRING(".png" + !inc_dot, 1);
1191 : case IMAGE_FILETYPE_SWF:
1192 : case IMAGE_FILETYPE_SWC:
1193 2 : RETURN_STRING(".swf" + !inc_dot, 1);
1194 : case IMAGE_FILETYPE_PSD:
1195 2 : RETURN_STRING(".psd" + !inc_dot, 1);
1196 : case IMAGE_FILETYPE_BMP:
1197 : case IMAGE_FILETYPE_WBMP:
1198 4 : RETURN_STRING(".bmp" + !inc_dot, 1);
1199 : case IMAGE_FILETYPE_TIFF_II:
1200 : case IMAGE_FILETYPE_TIFF_MM:
1201 4 : RETURN_STRING(".tiff" + !inc_dot, 1);
1202 : case IMAGE_FILETYPE_IFF:
1203 2 : RETURN_STRING(".iff" + !inc_dot, 1);
1204 : case IMAGE_FILETYPE_JPC:
1205 4 : RETURN_STRING(".jpc" + !inc_dot, 1);
1206 : case IMAGE_FILETYPE_JP2:
1207 2 : RETURN_STRING(".jp2" + !inc_dot, 1);
1208 : case IMAGE_FILETYPE_JPX:
1209 2 : RETURN_STRING(".jpx" + !inc_dot, 1);
1210 : case IMAGE_FILETYPE_JB2:
1211 2 : RETURN_STRING(".jb2" + !inc_dot, 1);
1212 : case IMAGE_FILETYPE_XBM:
1213 2 : RETURN_STRING(".xbm" + !inc_dot, 1);
1214 : case IMAGE_FILETYPE_ICO:
1215 0 : RETURN_STRING(".ico" + !inc_dot, 1);
1216 : }
1217 :
1218 2 : RETURN_FALSE;
1219 : }
1220 : /* }}} */
1221 :
1222 : /* {{{ php_imagetype
1223 : detect filetype from first bytes */
1224 : PHPAPI int php_getimagetype(php_stream * stream, char *filetype TSRMLS_DC)
1225 81 : {
1226 : char tmp[12];
1227 :
1228 81 : if ( !filetype) filetype = tmp;
1229 81 : if((php_stream_read(stream, filetype, 3)) != 3) {
1230 4 : php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1231 4 : return IMAGE_FILETYPE_UNKNOWN;
1232 : }
1233 :
1234 : /* BYTES READ: 3 */
1235 77 : if (!memcmp(filetype, php_sig_gif, 3)) {
1236 5 : return IMAGE_FILETYPE_GIF;
1237 72 : } else if (!memcmp(filetype, php_sig_jpg, 3)) {
1238 31 : return IMAGE_FILETYPE_JPEG;
1239 41 : } else if (!memcmp(filetype, php_sig_png, 3)) {
1240 7 : if (php_stream_read(stream, filetype+3, 5) != 5) {
1241 0 : php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1242 0 : return IMAGE_FILETYPE_UNKNOWN;
1243 : }
1244 7 : if (!memcmp(filetype, php_sig_png, 8)) {
1245 7 : return IMAGE_FILETYPE_PNG;
1246 : } else {
1247 0 : php_error_docref(NULL TSRMLS_CC, E_WARNING, "PNG file corrupted by ASCII conversion");
1248 0 : return IMAGE_FILETYPE_UNKNOWN;
1249 : }
1250 34 : } else if (!memcmp(filetype, php_sig_swf, 3)) {
1251 3 : return IMAGE_FILETYPE_SWF;
1252 31 : } else if (!memcmp(filetype, php_sig_swc, 3)) {
1253 3 : return IMAGE_FILETYPE_SWC;
1254 28 : } else if (!memcmp(filetype, php_sig_psd, 3)) {
1255 2 : return IMAGE_FILETYPE_PSD;
1256 26 : } else if (!memcmp(filetype, php_sig_bmp, 2)) {
1257 3 : return IMAGE_FILETYPE_BMP;
1258 23 : } else if (!memcmp(filetype, php_sig_jpc, 3)) {
1259 3 : return IMAGE_FILETYPE_JPC;
1260 : }
1261 :
1262 20 : if (php_stream_read(stream, filetype+3, 1) != 1) {
1263 0 : php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1264 0 : return IMAGE_FILETYPE_UNKNOWN;
1265 : }
1266 : /* BYTES READ: 4 */
1267 20 : if (!memcmp(filetype, php_sig_tif_ii, 4)) {
1268 3 : return IMAGE_FILETYPE_TIFF_II;
1269 17 : } else if (!memcmp(filetype, php_sig_tif_mm, 4)) {
1270 1 : return IMAGE_FILETYPE_TIFF_MM;
1271 16 : } else if (!memcmp(filetype, php_sig_iff, 4)) {
1272 3 : return IMAGE_FILETYPE_IFF;
1273 13 : } else if (!memcmp(filetype, php_sig_ico, 3)) {
1274 0 : return IMAGE_FILETYPE_ICO;
1275 : }
1276 :
1277 13 : if (php_stream_read(stream, filetype+4, 8) != 8) {
1278 0 : php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Read error!");
1279 0 : return IMAGE_FILETYPE_UNKNOWN;
1280 : }
1281 : /* BYTES READ: 12 */
1282 13 : if (!memcmp(filetype, php_sig_jp2, 12)) {
1283 3 : return IMAGE_FILETYPE_JP2;
1284 : }
1285 :
1286 : /* AFTER ALL ABOVE FAILED */
1287 10 : if (php_get_wbmp(stream, NULL, 1 TSRMLS_CC)) {
1288 1 : return IMAGE_FILETYPE_WBMP;
1289 : }
1290 9 : if (php_get_xbm(stream, NULL TSRMLS_CC)) {
1291 1 : return IMAGE_FILETYPE_XBM;
1292 : }
1293 8 : return IMAGE_FILETYPE_UNKNOWN;
1294 : }
1295 : /* }}} */
1296 :
1297 : /* {{{ proto array getimagesize(string imagefile [, array info])
1298 : Get the size of an image as 4-element array */
1299 : PHP_FUNCTION(getimagesize)
1300 111 : {
1301 111 : zval **info = NULL;
1302 : char *arg1, *temp;
1303 111 : int arg1_len, itype = 0, argc = ZEND_NUM_ARGS();
1304 111 : struct gfxinfo *result = NULL;
1305 111 : php_stream * stream = NULL;
1306 :
1307 111 : if (zend_parse_parameters(argc TSRMLS_CC, "s|Z", &arg1, &arg1_len, &info) == FAILURE) {
1308 8 : return;
1309 : }
1310 :
1311 103 : if (argc == 2) {
1312 67 : zval_dtor(*info);
1313 67 : array_init(*info);
1314 : }
1315 :
1316 103 : stream = php_stream_open_wrapper(arg1, "rb", STREAM_MUST_SEEK|REPORT_ERRORS|IGNORE_PATH|ENFORCE_SAFE_MODE, NULL);
1317 :
1318 103 : if (!stream) {
1319 23 : RETURN_FALSE;
1320 : }
1321 :
1322 80 : itype = php_getimagetype(stream, NULL TSRMLS_CC);
1323 80 : switch( itype) {
1324 : case IMAGE_FILETYPE_GIF:
1325 5 : result = php_handle_gif(stream TSRMLS_CC);
1326 5 : break;
1327 : case IMAGE_FILETYPE_JPEG:
1328 30 : if (info) {
1329 27 : result = php_handle_jpeg(stream, *info TSRMLS_CC);
1330 : } else {
1331 3 : result = php_handle_jpeg(stream, NULL TSRMLS_CC);
1332 : }
1333 30 : break;
1334 : case IMAGE_FILETYPE_PNG:
1335 7 : result = php_handle_png(stream TSRMLS_CC);
1336 7 : break;
1337 : case IMAGE_FILETYPE_SWF:
1338 3 : result = php_handle_swf(stream TSRMLS_CC);
1339 3 : break;
1340 : case IMAGE_FILETYPE_SWC:
1341 : #if HAVE_ZLIB && !defined(COMPILE_DL_ZLIB)
1342 3 : result = php_handle_swc(stream TSRMLS_CC);
1343 : #else
1344 : 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");
1345 : #endif
1346 3 : break;
1347 : case IMAGE_FILETYPE_PSD:
1348 2 : result = php_handle_psd(stream TSRMLS_CC);
1349 2 : break;
1350 : case IMAGE_FILETYPE_BMP:
1351 3 : result = php_handle_bmp(stream TSRMLS_CC);
1352 3 : break;
1353 : case IMAGE_FILETYPE_TIFF_II:
1354 3 : result = php_handle_tiff(stream, NULL, 0 TSRMLS_CC);
1355 3 : break;
1356 : case IMAGE_FILETYPE_TIFF_MM:
1357 1 : result = php_handle_tiff(stream, NULL, 1 TSRMLS_CC);
1358 1 : break;
1359 : case IMAGE_FILETYPE_JPC:
1360 3 : result = php_handle_jpc(stream TSRMLS_CC);
1361 3 : break;
1362 : case IMAGE_FILETYPE_JP2:
1363 3 : result = php_handle_jp2(stream TSRMLS_CC);
1364 3 : break;
1365 : case IMAGE_FILETYPE_IFF:
1366 3 : result = php_handle_iff(stream TSRMLS_CC);
1367 3 : break;
1368 : case IMAGE_FILETYPE_WBMP:
1369 1 : result = php_handle_wbmp(stream TSRMLS_CC);
1370 1 : break;
1371 : case IMAGE_FILETYPE_XBM:
1372 1 : result = php_handle_xbm(stream TSRMLS_CC);
1373 1 : break;
1374 : case IMAGE_FILETYPE_ICO:
1375 0 : result = php_handle_ico(stream TSRMLS_CC);
1376 : break;
1377 : default:
1378 : case IMAGE_FILETYPE_UNKNOWN:
1379 : break;
1380 : }
1381 :
1382 80 : php_stream_close(stream);
1383 :
1384 80 : if (result) {
1385 68 : array_init(return_value);
1386 68 : add_index_long(return_value, 0, result->width);
1387 68 : add_index_long(return_value, 1, result->height);
1388 68 : add_index_long(return_value, 2, itype);
1389 68 : spprintf(&temp, 0, "width=\"%d\" height=\"%d\"", result->width, result->height);
1390 68 : add_index_string(return_value, 3, temp, 0);
1391 :
1392 68 : if (result->bits != 0) {
1393 54 : add_assoc_long(return_value, "bits", result->bits);
1394 : }
1395 68 : if (result->channels != 0) {
1396 41 : add_assoc_long(return_value, "channels", result->channels);
1397 : }
1398 68 : add_assoc_string(return_value, "mime", (char*)php_image_type_to_mime_type(itype), 1);
1399 68 : efree(result);
1400 : } else {
1401 12 : RETURN_FALSE;
1402 : }
1403 : }
1404 : /* }}} */
1405 :
1406 : /*
1407 : * Local variables:
1408 : * tab-width: 4
1409 : * c-basic-offset: 4
1410 : * End:
1411 : * vim600: sw=4 ts=4 fdm=marker
1412 : * vim<600: sw=4 ts=4
1413 : */
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