This source file includes following definitions.
- php_zlib_alloc
- php_zlib_free
- deflate_rsrc_dtor
- inflate_rsrc_dtor
- php_zlib_output_conflict_check
- php_zlib_output_encoding
- php_zlib_output_handler_ex
- php_zlib_output_handler
- php_zlib_output_handler_context_init
- php_zlib_output_handler_context_dtor
- php_zlib_output_handler_init
- php_zlib_output_compression_start
- php_zlib_encode
- php_zlib_inflate_rounds
- php_zlib_decode
- php_zlib_cleanup_ob_gzhandler_mess
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- zlib_create_dictionary_string
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_INI_MH
- PHP_INI_MH
- PHP_INI_BEGIN
- PHP_MSHUTDOWN_FUNCTION
- PHP_RINIT_FUNCTION
- PHP_RSHUTDOWN_FUNCTION
- PHP_MINFO_FUNCTION
- PHP_GINIT_FUNCTION
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25 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28
29 #include "php.h"
30 #include "SAPI.h"
31 #include "php_ini.h"
32 #include "ext/standard/info.h"
33 #include "ext/standard/file.h"
34 #include "ext/standard/php_string.h"
35 #include "php_zlib.h"
36
37
38
39
40
41
42
43
44
45 #undef gzopen
46 #undef gzseek
47 #undef gztell
48
49 int le_deflate;
50 int le_inflate;
51
52 ZEND_DECLARE_MODULE_GLOBALS(zlib);
53
54
55
56 static voidpf php_zlib_alloc(voidpf opaque, uInt items, uInt size)
57 {
58 return (voidpf)safe_emalloc(items, size, 0);
59 }
60
61 static void php_zlib_free(voidpf opaque, voidpf address)
62 {
63 efree((void*)address);
64 }
65
66
67
68
69 void deflate_rsrc_dtor(zend_resource *res)
70 {
71 z_stream *ctx = zend_fetch_resource(res, NULL, le_deflate);
72 deflateEnd(ctx);
73 efree(ctx);
74 }
75
76 void inflate_rsrc_dtor(zend_resource *res)
77 {
78 z_stream *ctx = zend_fetch_resource(res, NULL, le_inflate);
79 if (((php_zlib_context *) ctx)->inflateDict) {
80 efree(((php_zlib_context *) ctx)->inflateDict);
81 }
82 inflateEnd(ctx);
83 efree(ctx);
84 }
85
86
87
88
89 static int php_zlib_output_conflict_check(const char *handler_name, size_t handler_name_len)
90 {
91 if (php_output_get_level() > 0) {
92 if (php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME))
93 || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("ob_gzhandler"))
94 || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("mb_output_handler"))
95 || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("URL-Rewriter"))) {
96 return FAILURE;
97 }
98 }
99 return SUCCESS;
100 }
101
102
103
104 static int php_zlib_output_encoding(void)
105 {
106 zval *enc;
107
108 if (!ZLIBG(compression_coding)) {
109 if ((Z_TYPE(PG(http_globals)[TRACK_VARS_SERVER]) == IS_ARRAY || zend_is_auto_global_str(ZEND_STRL("_SERVER"))) &&
110 (enc = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_ACCEPT_ENCODING", sizeof("HTTP_ACCEPT_ENCODING") - 1))) {
111 convert_to_string(enc);
112 if (strstr(Z_STRVAL_P(enc), "gzip")) {
113 ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_GZIP;
114 } else if (strstr(Z_STRVAL_P(enc), "deflate")) {
115 ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_DEFLATE;
116 }
117 }
118 }
119 return ZLIBG(compression_coding);
120 }
121
122
123
124 static int php_zlib_output_handler_ex(php_zlib_context *ctx, php_output_context *output_context)
125 {
126 int flags = Z_SYNC_FLUSH;
127
128 if (output_context->op & PHP_OUTPUT_HANDLER_START) {
129
130 if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
131 return FAILURE;
132 }
133 }
134
135 if (output_context->op & PHP_OUTPUT_HANDLER_CLEAN) {
136
137 deflateEnd(&ctx->Z);
138
139 if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
140
141 return SUCCESS;
142 } else {
143
144 if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
145 return FAILURE;
146 }
147 ctx->buffer.used = 0;
148 }
149 } else {
150 if (output_context->in.used) {
151
152 if (ctx->buffer.free < output_context->in.used) {
153 if (!(ctx->buffer.aptr = erealloc_recoverable(ctx->buffer.data, ctx->buffer.used + ctx->buffer.free + output_context->in.used))) {
154 deflateEnd(&ctx->Z);
155 return FAILURE;
156 }
157 ctx->buffer.data = ctx->buffer.aptr;
158 ctx->buffer.free += output_context->in.used;
159 }
160 memcpy(ctx->buffer.data + ctx->buffer.used, output_context->in.data, output_context->in.used);
161 ctx->buffer.free -= output_context->in.used;
162 ctx->buffer.used += output_context->in.used;
163 }
164 output_context->out.size = PHP_ZLIB_BUFFER_SIZE_GUESS(output_context->in.used);
165 output_context->out.data = emalloc(output_context->out.size);
166 output_context->out.free = 1;
167 output_context->out.used = 0;
168
169 ctx->Z.avail_in = ctx->buffer.used;
170 ctx->Z.next_in = (Bytef *) ctx->buffer.data;
171 ctx->Z.avail_out = output_context->out.size;
172 ctx->Z.next_out = (Bytef *) output_context->out.data;
173
174 if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
175 flags = Z_FINISH;
176 } else if (output_context->op & PHP_OUTPUT_HANDLER_FLUSH) {
177 flags = Z_FULL_FLUSH;
178 }
179
180 switch (deflate(&ctx->Z, flags)) {
181 case Z_OK:
182 if (flags == Z_FINISH) {
183 deflateEnd(&ctx->Z);
184 return FAILURE;
185 }
186 case Z_STREAM_END:
187 if (ctx->Z.avail_in) {
188 memmove(ctx->buffer.data, ctx->buffer.data + ctx->buffer.used - ctx->Z.avail_in, ctx->Z.avail_in);
189 }
190 ctx->buffer.free += ctx->buffer.used - ctx->Z.avail_in;
191 ctx->buffer.used = ctx->Z.avail_in;
192 output_context->out.used = output_context->out.size - ctx->Z.avail_out;
193 break;
194 default:
195 deflateEnd(&ctx->Z);
196 return FAILURE;
197 }
198
199 if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
200 deflateEnd(&ctx->Z);
201 }
202 }
203
204 return SUCCESS;
205 }
206
207
208
209 static int php_zlib_output_handler(void **handler_context, php_output_context *output_context)
210 {
211 php_zlib_context *ctx = *(php_zlib_context **) handler_context;
212
213 if (!php_zlib_output_encoding()) {
214
215
216
217
218
219
220
221
222
223
224 if ((output_context->op & PHP_OUTPUT_HANDLER_START)
225 && (output_context->op != (PHP_OUTPUT_HANDLER_START|PHP_OUTPUT_HANDLER_CLEAN|PHP_OUTPUT_HANDLER_FINAL))
226 ) {
227 sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0);
228 }
229 return FAILURE;
230 }
231
232 if (SUCCESS != php_zlib_output_handler_ex(ctx, output_context)) {
233 return FAILURE;
234 }
235
236 if (!(output_context->op & PHP_OUTPUT_HANDLER_CLEAN)) {
237 int flags;
238
239 if (SUCCESS == php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_GET_FLAGS, &flags)) {
240
241 if (!(flags & PHP_OUTPUT_HANDLER_STARTED)) {
242 if (SG(headers_sent) || !ZLIBG(output_compression)) {
243 deflateEnd(&ctx->Z);
244 return FAILURE;
245 }
246 switch (ZLIBG(compression_coding)) {
247 case PHP_ZLIB_ENCODING_GZIP:
248 sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1);
249 break;
250 case PHP_ZLIB_ENCODING_DEFLATE:
251 sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1);
252 break;
253 default:
254 deflateEnd(&ctx->Z);
255 return FAILURE;
256 }
257 sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0);
258 php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_IMMUTABLE, NULL);
259 }
260 }
261 }
262
263 return SUCCESS;
264 }
265
266
267
268 static php_zlib_context *php_zlib_output_handler_context_init(void)
269 {
270 php_zlib_context *ctx = (php_zlib_context *) ecalloc(1, sizeof(php_zlib_context));
271 ctx->Z.zalloc = php_zlib_alloc;
272 ctx->Z.zfree = php_zlib_free;
273 return ctx;
274 }
275
276
277
278 static void php_zlib_output_handler_context_dtor(void *opaq)
279 {
280 php_zlib_context *ctx = (php_zlib_context *) opaq;
281
282 if (ctx) {
283 if (ctx->buffer.data) {
284 efree(ctx->buffer.data);
285 }
286 efree(ctx);
287 }
288 }
289
290
291
292 static php_output_handler *php_zlib_output_handler_init(const char *handler_name, size_t handler_name_len, size_t chunk_size, int flags)
293 {
294 php_output_handler *h = NULL;
295
296 if (!ZLIBG(output_compression)) {
297 ZLIBG(output_compression) = chunk_size ? chunk_size : PHP_OUTPUT_HANDLER_DEFAULT_SIZE;
298 }
299
300 ZLIBG(handler_registered) = 1;
301
302 if ((h = php_output_handler_create_internal(handler_name, handler_name_len, php_zlib_output_handler, chunk_size, flags))) {
303 php_output_handler_set_context(h, php_zlib_output_handler_context_init(), php_zlib_output_handler_context_dtor);
304 }
305
306 return h;
307 }
308
309
310
311 static void php_zlib_output_compression_start(void)
312 {
313 zval zoh;
314 php_output_handler *h;
315
316 switch (ZLIBG(output_compression)) {
317 case 0:
318 break;
319 case 1:
320 ZLIBG(output_compression) = PHP_OUTPUT_HANDLER_DEFAULT_SIZE;
321
322 default:
323 if ( php_zlib_output_encoding() &&
324 (h = php_zlib_output_handler_init(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS)) &&
325 (SUCCESS == php_output_handler_start(h))) {
326 if (ZLIBG(output_handler) && *ZLIBG(output_handler)) {
327 ZVAL_STRING(&zoh, ZLIBG(output_handler));
328 php_output_start_user(&zoh, ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS);
329 zval_ptr_dtor(&zoh);
330 }
331 }
332 break;
333 }
334 }
335
336
337
338 static zend_string *php_zlib_encode(const char *in_buf, size_t in_len, int encoding, int level)
339 {
340 int status;
341 z_stream Z;
342 zend_string *out;
343
344 memset(&Z, 0, sizeof(z_stream));
345 Z.zalloc = php_zlib_alloc;
346 Z.zfree = php_zlib_free;
347
348 if (Z_OK == (status = deflateInit2(&Z, level, Z_DEFLATED, encoding, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) {
349 out = zend_string_alloc(PHP_ZLIB_BUFFER_SIZE_GUESS(in_len), 0);
350
351 Z.next_in = (Bytef *) in_buf;
352 Z.next_out = (Bytef *) ZSTR_VAL(out);
353 Z.avail_in = in_len;
354 Z.avail_out = ZSTR_LEN(out);
355
356 status = deflate(&Z, Z_FINISH);
357 deflateEnd(&Z);
358
359 if (Z_STREAM_END == status) {
360
361 out = zend_string_truncate(out, Z.total_out, 0);
362 ZSTR_VAL(out)[ZSTR_LEN(out)] = '\0';
363 return out;
364 } else {
365 zend_string_free(out);
366 }
367 }
368
369 php_error_docref(NULL, E_WARNING, "%s", zError(status));
370 return NULL;
371 }
372
373
374
375 static inline int php_zlib_inflate_rounds(z_stream *Z, size_t max, char **buf, size_t *len)
376 {
377 int status, round = 0;
378 php_zlib_buffer buffer = {NULL, NULL, 0, 0, 0};
379
380 *buf = NULL;
381 *len = 0;
382
383 buffer.size = (max && (max < Z->avail_in)) ? max : Z->avail_in;
384
385 do {
386 if ((max && (max <= buffer.used)) || !(buffer.aptr = erealloc_recoverable(buffer.data, buffer.size))) {
387 status = Z_MEM_ERROR;
388 } else {
389 buffer.data = buffer.aptr;
390 Z->avail_out = buffer.free = buffer.size - buffer.used;
391 Z->next_out = (Bytef *) buffer.data + buffer.used;
392 #if 0
393 fprintf(stderr, "\n%3d: %3d PRIOR: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);
394 #endif
395 status = inflate(Z, Z_NO_FLUSH);
396
397 buffer.used += buffer.free - Z->avail_out;
398 buffer.free = Z->avail_out;
399 #if 0
400 fprintf(stderr, "%3d: %3d AFTER: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);
401 #endif
402 buffer.size += (buffer.size >> 3) + 1;
403 }
404 } while ((Z_BUF_ERROR == status || (Z_OK == status && Z->avail_in)) && ++round < 100);
405
406 if (status == Z_STREAM_END) {
407 buffer.data = erealloc(buffer.data, buffer.used + 1);
408 buffer.data[buffer.used] = '\0';
409 *buf = buffer.data;
410 *len = buffer.used;
411 } else {
412 if (buffer.data) {
413 efree(buffer.data);
414 }
415
416
417 status = (status == Z_OK) ? Z_DATA_ERROR : status;
418 }
419 return status;
420 }
421
422
423
424 static int php_zlib_decode(const char *in_buf, size_t in_len, char **out_buf, size_t *out_len, int encoding, size_t max_len)
425 {
426 int status = Z_DATA_ERROR;
427 z_stream Z;
428
429 memset(&Z, 0, sizeof(z_stream));
430 Z.zalloc = php_zlib_alloc;
431 Z.zfree = php_zlib_free;
432
433 if (in_len) {
434 retry_raw_inflate:
435 status = inflateInit2(&Z, encoding);
436 if (Z_OK == status) {
437 Z.next_in = (Bytef *) in_buf;
438 Z.avail_in = in_len + 1;
439
440 switch (status = php_zlib_inflate_rounds(&Z, max_len, out_buf, out_len)) {
441 case Z_STREAM_END:
442 inflateEnd(&Z);
443 return SUCCESS;
444
445 case Z_DATA_ERROR:
446
447 if (PHP_ZLIB_ENCODING_ANY == encoding) {
448 inflateEnd(&Z);
449 encoding = PHP_ZLIB_ENCODING_RAW;
450 goto retry_raw_inflate;
451 }
452 }
453 inflateEnd(&Z);
454 }
455 }
456
457 *out_buf = NULL;
458 *out_len = 0;
459
460 php_error_docref(NULL, E_WARNING, "%s", zError(status));
461 return FAILURE;
462 }
463
464
465
466 static void php_zlib_cleanup_ob_gzhandler_mess(void)
467 {
468 if (ZLIBG(ob_gzhandler)) {
469 deflateEnd(&(ZLIBG(ob_gzhandler)->Z));
470 php_zlib_output_handler_context_dtor(ZLIBG(ob_gzhandler));
471 ZLIBG(ob_gzhandler) = NULL;
472 }
473 }
474
475
476
477
478 static PHP_FUNCTION(ob_gzhandler)
479 {
480 char *in_str;
481 size_t in_len;
482 zend_long flags = 0;
483 php_output_context ctx = {0};
484 int encoding, rv;
485
486
487
488
489
490
491
492
493
494 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "sl", &in_str, &in_len, &flags)) {
495 RETURN_FALSE;
496 }
497
498 if (!(encoding = php_zlib_output_encoding())) {
499 RETURN_FALSE;
500 }
501
502 if (flags & PHP_OUTPUT_HANDLER_START) {
503 switch (encoding) {
504 case PHP_ZLIB_ENCODING_GZIP:
505 sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1);
506 break;
507 case PHP_ZLIB_ENCODING_DEFLATE:
508 sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1);
509 break;
510 }
511 sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0);
512 }
513
514 if (!ZLIBG(ob_gzhandler)) {
515 ZLIBG(ob_gzhandler) = php_zlib_output_handler_context_init();
516 }
517
518 ctx.op = flags;
519 ctx.in.data = in_str;
520 ctx.in.used = in_len;
521
522 rv = php_zlib_output_handler_ex(ZLIBG(ob_gzhandler), &ctx);
523
524 if (SUCCESS != rv) {
525 if (ctx.out.data && ctx.out.free) {
526 efree(ctx.out.data);
527 }
528 php_zlib_cleanup_ob_gzhandler_mess();
529 RETURN_FALSE;
530 }
531
532 if (ctx.out.data) {
533 RETVAL_STRINGL(ctx.out.data, ctx.out.used);
534 if (ctx.out.free) {
535 efree(ctx.out.data);
536 }
537 } else {
538 RETVAL_EMPTY_STRING();
539 }
540 }
541
542
543
544
545 static PHP_FUNCTION(zlib_get_coding_type)
546 {
547 if (zend_parse_parameters_none() == FAILURE) {
548 return;
549 }
550 switch (ZLIBG(compression_coding)) {
551 case PHP_ZLIB_ENCODING_GZIP:
552 RETURN_STRINGL("gzip", sizeof("gzip") - 1);
553 case PHP_ZLIB_ENCODING_DEFLATE:
554 RETURN_STRINGL("deflate", sizeof("deflate") - 1);
555 default:
556 RETURN_FALSE;
557 }
558 }
559
560
561
562
563 static PHP_FUNCTION(gzfile)
564 {
565 char *filename;
566 size_t filename_len;
567 int flags = REPORT_ERRORS;
568 char buf[8192] = {0};
569 register int i = 0;
570 zend_long use_include_path = 0;
571 php_stream *stream;
572
573 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "p|l", &filename, &filename_len, &use_include_path)) {
574 return;
575 }
576
577 if (use_include_path) {
578 flags |= USE_PATH;
579 }
580
581
582 stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC);
583
584 if (!stream) {
585
586 RETURN_FALSE;
587 }
588
589
590 array_init(return_value);
591
592
593 memset(buf, 0, sizeof(buf));
594
595 while (php_stream_gets(stream, buf, sizeof(buf) - 1) != NULL) {
596 add_index_string(return_value, i++, buf);
597 }
598 php_stream_close(stream);
599 }
600
601
602
603
604 static PHP_FUNCTION(gzopen)
605 {
606 char *filename;
607 char *mode;
608 size_t filename_len, mode_len;
609 int flags = REPORT_ERRORS;
610 php_stream *stream;
611 zend_long use_include_path = 0;
612
613 if (zend_parse_parameters(ZEND_NUM_ARGS(), "ps|l", &filename, &filename_len, &mode, &mode_len, &use_include_path) == FAILURE) {
614 return;
615 }
616
617 if (use_include_path) {
618 flags |= USE_PATH;
619 }
620
621 stream = php_stream_gzopen(NULL, filename, mode, flags, NULL, NULL STREAMS_CC);
622
623 if (!stream) {
624 RETURN_FALSE;
625 }
626 php_stream_to_zval(stream, return_value);
627 }
628
629
630
631
632 static PHP_FUNCTION(readgzfile)
633 {
634 char *filename;
635 size_t filename_len;
636 int flags = REPORT_ERRORS;
637 php_stream *stream;
638 size_t size;
639 zend_long use_include_path = 0;
640
641 if (zend_parse_parameters(ZEND_NUM_ARGS(), "p|l", &filename, &filename_len, &use_include_path) == FAILURE) {
642 return;
643 }
644
645 if (use_include_path) {
646 flags |= USE_PATH;
647 }
648
649 stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC);
650
651 if (!stream) {
652 RETURN_FALSE;
653 }
654 size = php_stream_passthru(stream);
655 php_stream_close(stream);
656 RETURN_LONG(size);
657 }
658
659
660 #define PHP_ZLIB_ENCODE_FUNC(name, default_encoding) \
661 static PHP_FUNCTION(name) \
662 { \
663 zend_string *in, *out; \
664 zend_long level = -1; \
665 zend_long encoding = default_encoding; \
666 if (default_encoding) { \
667 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "S|ll", &in, &level, &encoding)) { \
668 return; \
669 } \
670 } else { \
671 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "Sl|l", &in, &encoding, &level)) { \
672 return; \
673 } \
674 } \
675 if (level < -1 || level > 9) { \
676 php_error_docref(NULL, E_WARNING, "compression level (%pd) must be within -1..9", level); \
677 RETURN_FALSE; \
678 } \
679 switch (encoding) { \
680 case PHP_ZLIB_ENCODING_RAW: \
681 case PHP_ZLIB_ENCODING_GZIP: \
682 case PHP_ZLIB_ENCODING_DEFLATE: \
683 break; \
684 default: \
685 php_error_docref(NULL, E_WARNING, "encoding mode must be either ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE"); \
686 RETURN_FALSE; \
687 } \
688 if ((out = php_zlib_encode(ZSTR_VAL(in), ZSTR_LEN(in), encoding, level)) == NULL) { \
689 RETURN_FALSE; \
690 } \
691 RETURN_STR(out); \
692 }
693
694 #define PHP_ZLIB_DECODE_FUNC(name, encoding) \
695 static PHP_FUNCTION(name) \
696 { \
697 char *in_buf, *out_buf; \
698 size_t in_len; \
699 size_t out_len; \
700 zend_long max_len = 0; \
701 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "s|l", &in_buf, &in_len, &max_len)) { \
702 return; \
703 } \
704 if (max_len < 0) { \
705 php_error_docref(NULL, E_WARNING, "length (%pd) must be greater or equal zero", max_len); \
706 RETURN_FALSE; \
707 } \
708 if (SUCCESS != php_zlib_decode(in_buf, in_len, &out_buf, &out_len, encoding, max_len)) { \
709 RETURN_FALSE; \
710 } \
711 RETVAL_STRINGL(out_buf, out_len); \
712 efree(out_buf); \
713 }
714
715
716
717 PHP_ZLIB_ENCODE_FUNC(zlib_encode, 0);
718
719
720
721
722 PHP_ZLIB_DECODE_FUNC(zlib_decode, PHP_ZLIB_ENCODING_ANY);
723
724
725
726
727
728 PHP_ZLIB_ENCODE_FUNC(gzdeflate, PHP_ZLIB_ENCODING_RAW);
729
730
731
732
733 PHP_ZLIB_ENCODE_FUNC(gzencode, PHP_ZLIB_ENCODING_GZIP);
734
735
736
737
738 PHP_ZLIB_ENCODE_FUNC(gzcompress, PHP_ZLIB_ENCODING_DEFLATE);
739
740
741
742
743 PHP_ZLIB_DECODE_FUNC(gzinflate, PHP_ZLIB_ENCODING_RAW);
744
745
746
747
748 PHP_ZLIB_DECODE_FUNC(gzdecode, PHP_ZLIB_ENCODING_GZIP);
749
750
751
752
753 PHP_ZLIB_DECODE_FUNC(gzuncompress, PHP_ZLIB_ENCODING_DEFLATE);
754
755
756 static zend_bool zlib_create_dictionary_string(HashTable *options, char **dict, size_t *dictlen) {
757 zval *option_buffer;
758
759 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("dictionary"))) != NULL) {
760 ZVAL_DEREF(option_buffer);
761 switch (Z_TYPE_P(option_buffer)) {
762 case IS_STRING: {
763 zend_string *str = Z_STR_P(option_buffer);
764 int i;
765 zend_bool last_null = 1;
766
767 for (i = 0; i < ZSTR_LEN(str); i++) {
768 if (ZSTR_VAL(str)[i]) {
769 last_null = 0;
770 } else {
771 if (last_null) {
772 php_error_docref(NULL, E_WARNING, "dictionary string must not contain empty entries (two consecutive NULL-bytes or one at the very beginning)");
773 return 0;
774 }
775 last_null = 1;
776 }
777 }
778 if (!last_null) {
779 php_error_docref(NULL, E_WARNING, "dictionary string must be NULL-byte terminated (each dictionary entry has to be NULL-terminated)");
780 }
781
782 *dict = emalloc(ZSTR_LEN(str));
783 memcpy(*dict, ZSTR_VAL(str), ZSTR_LEN(str));
784 *dictlen = ZSTR_LEN(str);
785 } break;
786
787 case IS_ARRAY: {
788 HashTable *dictionary = Z_ARR_P(option_buffer);
789
790 if (zend_hash_num_elements(dictionary) > 0) {
791 char *dictptr;
792 zval *cur;
793 zend_string **strings = emalloc(sizeof(zend_string *) * zend_hash_num_elements(dictionary));
794 zend_string **end, **ptr = strings - 1;
795
796 ZEND_HASH_FOREACH_VAL(dictionary, cur) {
797 int i;
798
799 *++ptr = zval_get_string(cur);
800 if (!*ptr || ZSTR_LEN(*ptr) == 0) {
801 if (*ptr) {
802 efree(*ptr);
803 }
804 while (--ptr >= strings) {
805 efree(ptr);
806 }
807 efree(strings);
808 php_error_docref(NULL, E_WARNING, "dictionary entries must be non-empty strings");
809 return 0;
810 }
811 for (i = 0; i < ZSTR_LEN(*ptr); i++) {
812 if (ZSTR_VAL(*ptr)[i] == 0) {
813 do {
814 efree(ptr);
815 } while (--ptr >= strings);
816 efree(strings);
817 php_error_docref(NULL, E_WARNING, "dictionary entries must not contain a NULL-byte");
818 return 0;
819 }
820 }
821
822 *dictlen += ZSTR_LEN(*ptr) + 1;
823 } ZEND_HASH_FOREACH_END();
824
825 dictptr = *dict = emalloc(*dictlen);
826 ptr = strings;
827 end = strings + zend_hash_num_elements(dictionary);
828 do {
829 memcpy(dictptr, ZSTR_VAL(*ptr), ZSTR_LEN(*ptr));
830 dictptr += ZSTR_LEN(*ptr);
831 *dictptr++ = 0;
832 zend_string_release(*ptr);
833 } while (++ptr != end);
834 efree(strings);
835 }
836 } break;
837
838 default:
839 php_error_docref(NULL, E_WARNING, "dictionary must be of type zero-terminated string or array, got %s", zend_get_type_by_const(Z_TYPE_P(option_buffer)));
840 return 0;
841 }
842 }
843
844 return 1;
845 }
846
847
848
849 PHP_FUNCTION(inflate_init)
850 {
851 z_stream *ctx;
852 zend_long encoding, window = 15;
853 char *dict = NULL;
854 size_t dictlen = 0;
855 HashTable *options = NULL;
856 zval *option_buffer;
857
858 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "l|H", &encoding, &options)) {
859 return;
860 }
861
862 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("window"))) != NULL) {
863 window = zval_get_long(option_buffer);
864 }
865 if (window < 8 || window > 15) {
866 php_error_docref(NULL, E_WARNING, "zlib window size (lograithm) (%pd) must be within 8..15", window);
867 RETURN_FALSE;
868 }
869
870 if (!zlib_create_dictionary_string(options, &dict, &dictlen)) {
871 RETURN_FALSE;
872 }
873
874 switch (encoding) {
875 case PHP_ZLIB_ENCODING_RAW:
876 case PHP_ZLIB_ENCODING_GZIP:
877 case PHP_ZLIB_ENCODING_DEFLATE:
878 break;
879 default:
880 php_error_docref(NULL, E_WARNING, "encoding mode must be ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE");
881 RETURN_FALSE;
882 }
883
884 ctx = ecalloc(1, sizeof(php_zlib_context));
885 ctx->zalloc = php_zlib_alloc;
886 ctx->zfree = php_zlib_free;
887 ((php_zlib_context *) ctx)->inflateDict = dict;
888 ((php_zlib_context *) ctx)->inflateDictlen = dictlen;
889
890 if (encoding < 0) {
891 encoding += 15 - window;
892 } else {
893 encoding -= 15 - window;
894 }
895
896 if (Z_OK == inflateInit2(ctx, encoding)) {
897 RETURN_RES(zend_register_resource(ctx, le_inflate));
898 } else {
899 efree(ctx);
900 php_error_docref(NULL, E_WARNING, "failed allocating zlib.inflate context");
901 RETURN_FALSE;
902 }
903 }
904
905
906
907
908 PHP_FUNCTION(inflate_add)
909 {
910 zend_string *out;
911 char *in_buf;
912 size_t in_len, buffer_used = 0, CHUNK_SIZE = 8192;
913 zval *res;
914 z_stream *ctx;
915 zend_long flush_type = Z_SYNC_FLUSH;
916 int status;
917
918 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "rs|l", &res, &in_buf, &in_len, &flush_type)) {
919 return;
920 }
921
922 if (!(ctx = zend_fetch_resource_ex(res, NULL, le_inflate))) {
923 php_error_docref(NULL, E_WARNING, "Invalid zlib.inflate resource");
924 RETURN_FALSE;
925 }
926
927 switch (flush_type) {
928 case Z_NO_FLUSH:
929 case Z_PARTIAL_FLUSH:
930 case Z_SYNC_FLUSH:
931 case Z_FULL_FLUSH:
932 case Z_BLOCK:
933 case Z_FINISH:
934 break;
935
936 default:
937 php_error_docref(NULL, E_WARNING,
938 "flush mode must be ZLIB_NO_FLUSH, ZLIB_PARTIAL_FLUSH, ZLIB_SYNC_FLUSH, ZLIB_FULL_FLUSH, ZLIB_BLOCK or ZLIB_FINISH");
939 RETURN_FALSE;
940 }
941
942 if (in_len <= 0 && flush_type != Z_FINISH) {
943 RETURN_EMPTY_STRING();
944 }
945
946 out = zend_string_alloc((in_len > CHUNK_SIZE) ? in_len : CHUNK_SIZE, 0);
947 ctx->next_in = (Bytef *) in_buf;
948 ctx->next_out = (Bytef *) ZSTR_VAL(out);
949 ctx->avail_in = in_len;
950 ctx->avail_out = ZSTR_LEN(out);
951
952 do {
953 status = inflate(ctx, flush_type);
954 buffer_used = ZSTR_LEN(out) - ctx->avail_out;
955
956 switch (status) {
957 case Z_OK:
958 if (ctx->avail_out == 0) {
959
960 out = zend_string_realloc(out, ZSTR_LEN(out) + CHUNK_SIZE, 0);
961 ctx->avail_out = CHUNK_SIZE;
962 ctx->next_out = (Bytef *) ZSTR_VAL(out) + buffer_used;
963 break;
964 } else {
965 goto complete;
966 }
967 case Z_STREAM_END:
968 inflateReset(ctx);
969 goto complete;
970 case Z_BUF_ERROR:
971 if (flush_type == Z_FINISH && ctx->avail_out == 0) {
972
973 out = zend_string_realloc(out, ZSTR_LEN(out) + CHUNK_SIZE, 0);
974 ctx->avail_out = CHUNK_SIZE;
975 ctx->next_out = (Bytef *) ZSTR_VAL(out) + buffer_used;
976 break;
977 } else {
978
979 goto complete;
980 }
981 case Z_NEED_DICT:
982 if (((php_zlib_context *) ctx)->inflateDict) {
983 php_zlib_context *php_ctx = (php_zlib_context *) ctx;
984 switch (inflateSetDictionary(ctx, (Bytef *) php_ctx->inflateDict, php_ctx->inflateDictlen)) {
985 case Z_OK:
986 efree(php_ctx->inflateDict);
987 php_ctx->inflateDict = NULL;
988 break;
989 case Z_DATA_ERROR:
990 php_error_docref(NULL, E_WARNING, "dictionary does not match expected dictionary (incorrect adler32 hash)");
991 efree(php_ctx->inflateDict);
992 zend_string_release(out);
993 php_ctx->inflateDict = NULL;
994 RETURN_FALSE;
995 EMPTY_SWITCH_DEFAULT_CASE()
996 }
997 break;
998 } else {
999 php_error_docref(NULL, E_WARNING, "inflating this data requires a preset dictionary, please specify it in the options array of inflate_init()");
1000 RETURN_FALSE;
1001 }
1002 default:
1003 zend_string_release(out);
1004 php_error_docref(NULL, E_WARNING, "%s", zError(status));
1005 RETURN_FALSE;
1006 }
1007 } while (1);
1008
1009 complete: {
1010 out = zend_string_realloc(out, buffer_used, 0);
1011 ZSTR_VAL(out)[buffer_used] = 0;
1012 RETURN_STR(out);
1013 }
1014 }
1015
1016
1017
1018
1019 PHP_FUNCTION(deflate_init)
1020 {
1021 z_stream *ctx;
1022 zend_long encoding, level = -1, memory = 8, window = 15, strategy = Z_DEFAULT_STRATEGY;
1023 char *dict = NULL;
1024 size_t dictlen = 0;
1025 HashTable *options = NULL;
1026 zval *option_buffer;
1027
1028 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "l|H", &encoding, &options)) {
1029 return;
1030 }
1031
1032 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("level"))) != NULL) {
1033 level = zval_get_long(option_buffer);
1034 }
1035 if (level < -1 || level > 9) {
1036 php_error_docref(NULL, E_WARNING, "compression level (%pd) must be within -1..9", level);
1037 RETURN_FALSE;
1038 }
1039
1040 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("memory"))) != NULL) {
1041 memory = zval_get_long(option_buffer);
1042 }
1043 if (memory < 1 || memory > 9) {
1044 php_error_docref(NULL, E_WARNING, "compression memory level (%pd) must be within 1..9", memory);
1045 RETURN_FALSE;
1046 }
1047
1048 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("window"))) != NULL) {
1049 window = zval_get_long(option_buffer);
1050 }
1051 if (window < 8 || window > 15) {
1052 php_error_docref(NULL, E_WARNING, "zlib window size (logarithm) (%pd) must be within 8..15", window);
1053 RETURN_FALSE;
1054 }
1055
1056 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("strategy"))) != NULL) {
1057 strategy = zval_get_long(option_buffer);
1058 }
1059 switch (strategy) {
1060 case Z_FILTERED:
1061 case Z_HUFFMAN_ONLY:
1062 case Z_RLE:
1063 case Z_FIXED:
1064 case Z_DEFAULT_STRATEGY:
1065 break;
1066 default:
1067 php_error_docref(NULL, E_WARNING, "strategy must be one of ZLIB_FILTERED, ZLIB_HUFFMAN_ONLY, ZLIB_RLE, ZLIB_FIXED or ZLIB_DEFAULT_STRATEGY");
1068 RETURN_FALSE;
1069 }
1070
1071 if (!zlib_create_dictionary_string(options, &dict, &dictlen)) {
1072 RETURN_FALSE;
1073 }
1074
1075 switch (encoding) {
1076 case PHP_ZLIB_ENCODING_RAW:
1077 case PHP_ZLIB_ENCODING_GZIP:
1078 case PHP_ZLIB_ENCODING_DEFLATE:
1079 break;
1080 default:
1081 php_error_docref(NULL, E_WARNING,
1082 "encoding mode must be ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE");
1083 RETURN_FALSE;
1084 }
1085
1086 ctx = ecalloc(1, sizeof(php_zlib_context));
1087 ctx->zalloc = php_zlib_alloc;
1088 ctx->zfree = php_zlib_free;
1089
1090 if (encoding < 0) {
1091 encoding += 15 - window;
1092 } else {
1093 encoding -= 15 - window;
1094 }
1095
1096 if (Z_OK == deflateInit2(ctx, level, Z_DEFLATED, encoding, memory, strategy)) {
1097 if (dict) {
1098 int success = deflateSetDictionary(ctx, (Bytef *) dict, dictlen);
1099 ZEND_ASSERT(success == Z_OK);
1100 efree(dict);
1101 }
1102
1103 RETURN_RES(zend_register_resource(ctx, le_deflate));
1104 } else {
1105 efree(ctx);
1106 php_error_docref(NULL, E_WARNING, "failed allocating zlib.deflate context");
1107 RETURN_FALSE;
1108 }
1109 }
1110
1111
1112
1113
1114 PHP_FUNCTION(deflate_add)
1115 {
1116 zend_string *out;
1117 char *in_buf;
1118 size_t in_len, out_size;
1119 zval *res;
1120 z_stream *ctx;
1121 zend_long flush_type = Z_SYNC_FLUSH;
1122 int status;
1123
1124 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "rs|l", &res, &in_buf, &in_len, &flush_type)) {
1125 return;
1126 }
1127
1128 if (!(ctx = zend_fetch_resource_ex(res, NULL, le_deflate))) {
1129 php_error_docref(NULL, E_WARNING, "Invalid deflate resource");
1130 RETURN_FALSE;
1131 }
1132
1133 switch (flush_type) {
1134 case Z_BLOCK:
1135 #if ZLIB_VERNUM < 0x1240L
1136 php_error_docref(NULL, E_WARNING,
1137 "zlib >= 1.2.4 required for BLOCK deflate; current version: %s", ZLIB_VERSION);
1138 RETURN_FALSE;
1139 #endif
1140 case Z_NO_FLUSH:
1141 case Z_PARTIAL_FLUSH:
1142 case Z_SYNC_FLUSH:
1143 case Z_FULL_FLUSH:
1144 case Z_FINISH:
1145 break;
1146
1147 default:
1148 php_error_docref(NULL, E_WARNING,
1149 "flush mode must be ZLIB_NO_FLUSH, ZLIB_PARTIAL_FLUSH, ZLIB_SYNC_FLUSH, ZLIB_FULL_FLUSH, ZLIB_BLOCK or ZLIB_FINISH");
1150 RETURN_FALSE;
1151 }
1152
1153 if (in_len <= 0 && flush_type != Z_FINISH) {
1154 RETURN_EMPTY_STRING();
1155 }
1156
1157 out_size = PHP_ZLIB_BUFFER_SIZE_GUESS(ctx->total_in + in_len);
1158 out_size = (ctx->total_out >= out_size) ? 16 : (out_size - ctx->total_out);
1159 out_size = (out_size < 16) ? 16 : out_size;
1160 out = zend_string_alloc(out_size, 0);
1161
1162 ctx->next_in = (Bytef *) in_buf;
1163 ctx->next_out = (Bytef *) ZSTR_VAL(out);
1164 ctx->avail_in = in_len;
1165 ctx->avail_out = ZSTR_LEN(out);
1166
1167 status = deflate(ctx, flush_type);
1168 switch (status) {
1169 case Z_OK:
1170 ZSTR_LEN(out) = (char *) ctx->next_out - ZSTR_VAL(out);
1171 ZSTR_VAL(out)[ZSTR_LEN(out)] = 0;
1172 RETURN_STR(out);
1173 break;
1174 case Z_STREAM_END:
1175 ZSTR_LEN(out) = (char *) ctx->next_out - ZSTR_VAL(out);
1176 ZSTR_VAL(out)[ZSTR_LEN(out)] = 0;
1177 deflateReset(ctx);
1178 RETURN_STR(out);
1179 break;
1180 default:
1181 zend_string_release(out);
1182 php_error_docref(NULL, E_WARNING, "zlib error (%s)", zError(status));
1183 RETURN_FALSE;
1184 }
1185 }
1186
1187
1188 #ifdef COMPILE_DL_ZLIB
1189 #ifdef ZTS
1190 ZEND_TSRMLS_CACHE_DEFINE()
1191 #endif
1192 ZEND_GET_MODULE(php_zlib)
1193 #endif
1194
1195
1196 ZEND_BEGIN_ARG_INFO_EX(arginfo_ob_gzhandler, 0, 0, 2)
1197 ZEND_ARG_INFO(0, data)
1198 ZEND_ARG_INFO(0, flags)
1199 ZEND_END_ARG_INFO()
1200
1201 ZEND_BEGIN_ARG_INFO(arginfo_zlib_get_coding_type, 0)
1202 ZEND_END_ARG_INFO()
1203
1204 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzfile, 0, 0, 1)
1205 ZEND_ARG_INFO(0, filename)
1206 ZEND_ARG_INFO(0, use_include_path)
1207 ZEND_END_ARG_INFO()
1208
1209 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzopen, 0, 0, 2)
1210 ZEND_ARG_INFO(0, filename)
1211 ZEND_ARG_INFO(0, mode)
1212 ZEND_ARG_INFO(0, use_include_path)
1213 ZEND_END_ARG_INFO()
1214
1215 ZEND_BEGIN_ARG_INFO_EX(arginfo_readgzfile, 0, 0, 1)
1216 ZEND_ARG_INFO(0, filename)
1217 ZEND_ARG_INFO(0, use_include_path)
1218 ZEND_END_ARG_INFO()
1219
1220 ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_encode, 0, 0, 2)
1221 ZEND_ARG_INFO(0, data)
1222 ZEND_ARG_INFO(0, encoding)
1223 ZEND_ARG_INFO(0, level)
1224 ZEND_END_ARG_INFO()
1225
1226 ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_decode, 0, 0, 1)
1227 ZEND_ARG_INFO(0, data)
1228 ZEND_ARG_INFO(0, max_decoded_len)
1229 ZEND_END_ARG_INFO()
1230
1231 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdeflate, 0, 0, 1)
1232 ZEND_ARG_INFO(0, data)
1233 ZEND_ARG_INFO(0, level)
1234 ZEND_ARG_INFO(0, encoding)
1235 ZEND_END_ARG_INFO()
1236
1237 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzencode, 0, 0, 1)
1238 ZEND_ARG_INFO(0, data)
1239 ZEND_ARG_INFO(0, level)
1240 ZEND_ARG_INFO(0, encoding)
1241 ZEND_END_ARG_INFO()
1242
1243 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzcompress, 0, 0, 1)
1244 ZEND_ARG_INFO(0, data)
1245 ZEND_ARG_INFO(0, level)
1246 ZEND_ARG_INFO(0, encoding)
1247 ZEND_END_ARG_INFO()
1248
1249 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzinflate, 0, 0, 1)
1250 ZEND_ARG_INFO(0, data)
1251 ZEND_ARG_INFO(0, max_decoded_len)
1252 ZEND_END_ARG_INFO()
1253
1254 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdecode, 0, 0, 1)
1255 ZEND_ARG_INFO(0, data)
1256 ZEND_ARG_INFO(0, max_decoded_len)
1257 ZEND_END_ARG_INFO()
1258
1259 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzuncompress, 0, 0, 1)
1260 ZEND_ARG_INFO(0, data)
1261 ZEND_ARG_INFO(0, max_decoded_len)
1262 ZEND_END_ARG_INFO()
1263
1264 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzputs, 0, 0, 2)
1265 ZEND_ARG_INFO(0, fp)
1266 ZEND_ARG_INFO(0, str)
1267 ZEND_ARG_INFO(0, length)
1268 ZEND_END_ARG_INFO()
1269
1270 ZEND_BEGIN_ARG_INFO(arginfo_gzpassthru, 0)
1271 ZEND_ARG_INFO(0, fp)
1272 ZEND_END_ARG_INFO()
1273
1274 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzseek, 0, 0, 2)
1275 ZEND_ARG_INFO(0, fp)
1276 ZEND_ARG_INFO(0, offset)
1277 ZEND_ARG_INFO(0, whence)
1278 ZEND_END_ARG_INFO()
1279
1280 ZEND_BEGIN_ARG_INFO(arginfo_gzread, 0)
1281 ZEND_ARG_INFO(0, fp)
1282 ZEND_ARG_INFO(0, length)
1283 ZEND_END_ARG_INFO()
1284
1285 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgetss, 0, 0, 1)
1286 ZEND_ARG_INFO(0, fp)
1287 ZEND_ARG_INFO(0, length)
1288 ZEND_ARG_INFO(0, allowable_tags)
1289 ZEND_END_ARG_INFO()
1290
1291 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgets, 0, 0, 1)
1292 ZEND_ARG_INFO(0, fp)
1293 ZEND_ARG_INFO(0, length)
1294 ZEND_END_ARG_INFO()
1295
1296 ZEND_BEGIN_ARG_INFO_EX(arginfo_deflate_init, 0, 0, 1)
1297 ZEND_ARG_INFO(0, encoding)
1298 ZEND_ARG_INFO(0, level)
1299 ZEND_END_ARG_INFO()
1300
1301 ZEND_BEGIN_ARG_INFO_EX(arginfo_deflate_add, 0, 0, 2)
1302 ZEND_ARG_INFO(0, resource)
1303 ZEND_ARG_INFO(0, add)
1304 ZEND_ARG_INFO(0, flush_behavior)
1305 ZEND_END_ARG_INFO()
1306
1307 ZEND_BEGIN_ARG_INFO_EX(arginfo_inflate_init, 0, 0, 1)
1308 ZEND_ARG_INFO(0, encoding)
1309 ZEND_END_ARG_INFO()
1310
1311 ZEND_BEGIN_ARG_INFO_EX(arginfo_inflate_add, 0, 0, 2)
1312 ZEND_ARG_INFO(0, resource)
1313 ZEND_ARG_INFO(0, flush_behavior)
1314 ZEND_END_ARG_INFO()
1315
1316
1317
1318
1319 static const zend_function_entry php_zlib_functions[] = {
1320 PHP_FE(readgzfile, arginfo_readgzfile)
1321 PHP_FALIAS(gzrewind, rewind, arginfo_gzpassthru)
1322 PHP_FALIAS(gzclose, fclose, arginfo_gzpassthru)
1323 PHP_FALIAS(gzeof, feof, arginfo_gzpassthru)
1324 PHP_FALIAS(gzgetc, fgetc, arginfo_gzpassthru)
1325 PHP_FALIAS(gzgets, fgets, arginfo_gzgets)
1326 PHP_FALIAS(gzgetss, fgetss, arginfo_gzgetss)
1327 PHP_FALIAS(gzread, fread, arginfo_gzread)
1328 PHP_FE(gzopen, arginfo_gzopen)
1329 PHP_FALIAS(gzpassthru, fpassthru, arginfo_gzpassthru)
1330 PHP_FALIAS(gzseek, fseek, arginfo_gzseek)
1331 PHP_FALIAS(gztell, ftell, arginfo_gzpassthru)
1332 PHP_FALIAS(gzwrite, fwrite, arginfo_gzputs)
1333 PHP_FALIAS(gzputs, fwrite, arginfo_gzputs)
1334 PHP_FE(gzfile, arginfo_gzfile)
1335 PHP_FE(gzcompress, arginfo_gzcompress)
1336 PHP_FE(gzuncompress, arginfo_gzuncompress)
1337 PHP_FE(gzdeflate, arginfo_gzdeflate)
1338 PHP_FE(gzinflate, arginfo_gzinflate)
1339 PHP_FE(gzencode, arginfo_gzencode)
1340 PHP_FE(gzdecode, arginfo_gzdecode)
1341 PHP_FE(zlib_encode, arginfo_zlib_encode)
1342 PHP_FE(zlib_decode, arginfo_zlib_decode)
1343 PHP_FE(zlib_get_coding_type, arginfo_zlib_get_coding_type)
1344 PHP_FE(deflate_init, arginfo_deflate_init)
1345 PHP_FE(deflate_add, arginfo_deflate_add)
1346 PHP_FE(inflate_init, arginfo_inflate_init)
1347 PHP_FE(inflate_add, arginfo_inflate_add)
1348 PHP_FE(ob_gzhandler, arginfo_ob_gzhandler)
1349 PHP_FE_END
1350 };
1351
1352
1353
1354 static PHP_INI_MH(OnUpdate_zlib_output_compression)
1355 {
1356 int int_value;
1357 char *ini_value;
1358 zend_long *p;
1359 #ifndef ZTS
1360 char *base = (char *) mh_arg2;
1361 #else
1362 char *base;
1363
1364 base = (char *) ts_resource(*((int *) mh_arg2));
1365 #endif
1366
1367 if (new_value == NULL) {
1368 return FAILURE;
1369 }
1370
1371 if (!strncasecmp(ZSTR_VAL(new_value), "off", sizeof("off"))) {
1372 int_value = 0;
1373 } else if (!strncasecmp(ZSTR_VAL(new_value), "on", sizeof("on"))) {
1374 int_value = 1;
1375 } else {
1376 int_value = zend_atoi(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
1377 }
1378 ini_value = zend_ini_string("output_handler", sizeof("output_handler"), 0);
1379
1380 if (ini_value && *ini_value && int_value) {
1381 php_error_docref("ref.outcontrol", E_CORE_ERROR, "Cannot use both zlib.output_compression and output_handler together!!");
1382 return FAILURE;
1383 }
1384 if (stage == PHP_INI_STAGE_RUNTIME) {
1385 int status = php_output_get_status();
1386 if (status & PHP_OUTPUT_SENT) {
1387 php_error_docref("ref.outcontrol", E_WARNING, "Cannot change zlib.output_compression - headers already sent");
1388 return FAILURE;
1389 }
1390 }
1391
1392 p = (zend_long *) (base+(size_t) mh_arg1);
1393 *p = int_value;
1394
1395 ZLIBG(output_compression) = ZLIBG(output_compression_default);
1396 if (stage == PHP_INI_STAGE_RUNTIME && int_value) {
1397 if (!php_output_handler_started(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME))) {
1398 php_zlib_output_compression_start();
1399 }
1400 }
1401
1402 return SUCCESS;
1403 }
1404
1405
1406
1407 static PHP_INI_MH(OnUpdate_zlib_output_handler)
1408 {
1409 if (stage == PHP_INI_STAGE_RUNTIME && (php_output_get_status() & PHP_OUTPUT_SENT)) {
1410 php_error_docref("ref.outcontrol", E_WARNING, "Cannot change zlib.output_handler - headers already sent");
1411 return FAILURE;
1412 }
1413
1414 return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
1415 }
1416
1417
1418
1419 PHP_INI_BEGIN()
1420 STD_PHP_INI_BOOLEAN("zlib.output_compression", "0", PHP_INI_ALL, OnUpdate_zlib_output_compression, output_compression_default, zend_zlib_globals, zlib_globals)
1421 STD_PHP_INI_ENTRY("zlib.output_compression_level", "-1", PHP_INI_ALL, OnUpdateLong, output_compression_level, zend_zlib_globals, zlib_globals)
1422 STD_PHP_INI_ENTRY("zlib.output_handler", "", PHP_INI_ALL, OnUpdate_zlib_output_handler, output_handler, zend_zlib_globals, zlib_globals)
1423 PHP_INI_END()
1424
1425
1426
1427
1428 static PHP_MINIT_FUNCTION(zlib)
1429 {
1430 php_register_url_stream_wrapper("compress.zlib", &php_stream_gzip_wrapper);
1431 php_stream_filter_register_factory("zlib.*", &php_zlib_filter_factory);
1432
1433 php_output_handler_alias_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_handler_init);
1434 php_output_handler_conflict_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_conflict_check);
1435 php_output_handler_conflict_register(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), php_zlib_output_conflict_check);
1436
1437 le_deflate = zend_register_list_destructors_ex(deflate_rsrc_dtor, NULL, "zlib.deflate", module_number);
1438 le_inflate = zend_register_list_destructors_ex(inflate_rsrc_dtor, NULL, "zlib.inflate", module_number);
1439
1440 REGISTER_LONG_CONSTANT("FORCE_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT);
1441 REGISTER_LONG_CONSTANT("FORCE_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT);
1442
1443 REGISTER_LONG_CONSTANT("ZLIB_ENCODING_RAW", PHP_ZLIB_ENCODING_RAW, CONST_CS|CONST_PERSISTENT);
1444 REGISTER_LONG_CONSTANT("ZLIB_ENCODING_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT);
1445 REGISTER_LONG_CONSTANT("ZLIB_ENCODING_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT);
1446
1447 REGISTER_LONG_CONSTANT("ZLIB_NO_FLUSH", Z_NO_FLUSH, CONST_CS|CONST_PERSISTENT);
1448 REGISTER_LONG_CONSTANT("ZLIB_PARTIAL_FLUSH", Z_PARTIAL_FLUSH, CONST_CS|CONST_PERSISTENT);
1449 REGISTER_LONG_CONSTANT("ZLIB_SYNC_FLUSH", Z_SYNC_FLUSH, CONST_CS|CONST_PERSISTENT);
1450 REGISTER_LONG_CONSTANT("ZLIB_FULL_FLUSH", Z_FULL_FLUSH, CONST_CS|CONST_PERSISTENT);
1451 REGISTER_LONG_CONSTANT("ZLIB_BLOCK", Z_BLOCK, CONST_CS|CONST_PERSISTENT);
1452 REGISTER_LONG_CONSTANT("ZLIB_FINISH", Z_FINISH, CONST_CS|CONST_PERSISTENT);
1453
1454 REGISTER_LONG_CONSTANT("ZLIB_FILTERED", Z_FILTERED, CONST_CS|CONST_PERSISTENT);
1455 REGISTER_LONG_CONSTANT("ZLIB_HUFFMAN_ONLY", Z_HUFFMAN_ONLY, CONST_CS|CONST_PERSISTENT);
1456 REGISTER_LONG_CONSTANT("ZLIB_RLE", Z_RLE, CONST_CS|CONST_PERSISTENT);
1457 REGISTER_LONG_CONSTANT("ZLIB_FIXED", Z_FIXED, CONST_CS|CONST_PERSISTENT);
1458 REGISTER_LONG_CONSTANT("ZLIB_DEFAULT_STRATEGY", Z_DEFAULT_STRATEGY, CONST_CS|CONST_PERSISTENT);
1459
1460 REGISTER_STRING_CONSTANT("ZLIB_VERSION", ZLIB_VERSION, CONST_CS|CONST_PERSISTENT);
1461 REGISTER_LONG_CONSTANT("ZLIB_VERNUM", ZLIB_VERNUM, CONST_CS|CONST_PERSISTENT);
1462
1463 REGISTER_INI_ENTRIES();
1464 return SUCCESS;
1465 }
1466
1467
1468
1469 static PHP_MSHUTDOWN_FUNCTION(zlib)
1470 {
1471 php_unregister_url_stream_wrapper("zlib");
1472 php_stream_filter_unregister_factory("zlib.*");
1473
1474 UNREGISTER_INI_ENTRIES();
1475
1476 return SUCCESS;
1477 }
1478
1479
1480
1481 static PHP_RINIT_FUNCTION(zlib)
1482 {
1483 ZLIBG(compression_coding) = 0;
1484 if (!ZLIBG(handler_registered)) {
1485 ZLIBG(output_compression) = ZLIBG(output_compression_default);
1486 php_zlib_output_compression_start();
1487 }
1488
1489 return SUCCESS;
1490 }
1491
1492
1493
1494 static PHP_RSHUTDOWN_FUNCTION(zlib)
1495 {
1496 php_zlib_cleanup_ob_gzhandler_mess();
1497 ZLIBG(handler_registered) = 0;
1498
1499 return SUCCESS;
1500 }
1501
1502
1503
1504 static PHP_MINFO_FUNCTION(zlib)
1505 {
1506 php_info_print_table_start();
1507 php_info_print_table_header(2, "ZLib Support", "enabled");
1508 php_info_print_table_row(2, "Stream Wrapper", "compress.zlib://");
1509 php_info_print_table_row(2, "Stream Filter", "zlib.inflate, zlib.deflate");
1510 php_info_print_table_row(2, "Compiled Version", ZLIB_VERSION);
1511 php_info_print_table_row(2, "Linked Version", (char *) zlibVersion());
1512 php_info_print_table_end();
1513
1514 DISPLAY_INI_ENTRIES();
1515 }
1516
1517
1518
1519 static PHP_GINIT_FUNCTION(zlib)
1520 {
1521 #if defined(COMPILE_DL_ZLIB) && defined(ZTS)
1522 ZEND_TSRMLS_CACHE_UPDATE();
1523 #endif
1524 zlib_globals->ob_gzhandler = NULL;
1525 zlib_globals->handler_registered = 0;
1526 }
1527
1528
1529
1530 zend_module_entry php_zlib_module_entry = {
1531 STANDARD_MODULE_HEADER,
1532 "zlib",
1533 php_zlib_functions,
1534 PHP_MINIT(zlib),
1535 PHP_MSHUTDOWN(zlib),
1536 PHP_RINIT(zlib),
1537 PHP_RSHUTDOWN(zlib),
1538 PHP_MINFO(zlib),
1539 PHP_ZLIB_VERSION,
1540 PHP_MODULE_GLOBALS(zlib),
1541 PHP_GINIT(zlib),
1542 NULL,
1543 NULL,
1544 STANDARD_MODULE_PROPERTIES_EX
1545 };
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555