2 +--------------------------------------------------------------------+
4 +--------------------------------------------------------------------+
5 | Redistribution and use in source and binary forms, with or without |
6 | modification, are permitted provided that the conditions mentioned |
7 | in the accompanying LICENSE file are met. |
8 +--------------------------------------------------------------------+
9 | Copyright (c) 2004-2014, Michael Wallner <mike@php.net> |
10 +--------------------------------------------------------------------+
13 #include "php_http_api.h"
17 static inline int eol_match(char **line
, int *eol_len
)
21 while (' ' == *ptr
) ++ptr
;
23 if (ptr
== php_http_locate_eol(*line
, eol_len
)) {
31 const char *php_http_encoding_dechunk(const char *encoded
, size_t encoded_len
, char **decoded
, size_t *decoded_len
)
35 const char *e_ptr
= encoded
;
38 *decoded
= ecalloc(1, encoded_len
+ 1);
40 while ((encoded
+ encoded_len
- e_ptr
) > 0) {
41 ulong chunk_len
= 0, rest
;
43 chunk_len
= strtoul(e_ptr
, &n_ptr
, 16);
45 /* we could not read in chunk size */
48 * if this is the first turn and there doesn't seem to be a chunk
49 * size at the begining of the body, do not fail on apparently
50 * not encoded data and return a copy
52 if (e_ptr
== encoded
) {
53 php_error_docref(NULL
, E_NOTICE
, "Data does not seem to be chunked encoded");
54 memcpy(*decoded
, encoded
, encoded_len
);
55 *decoded_len
= encoded_len
;
56 return encoded
+ encoded_len
;
59 php_error_docref(NULL
, E_WARNING
, "Expected chunk size at pos %tu of %zu but got trash", n_ptr
- encoded
, encoded_len
);
66 /* move over '0' chunked encoding terminator and any new lines */
79 /* there should be CRLF after the chunk size, but we'll ignore SP+ too */
80 if (*n_ptr
&& !eol_match(&n_ptr
, &eol_len
)) {
82 php_error_docref(NULL
, E_WARNING
, "Expected CRLF at pos %tu of %zu but got 0x%02X 0x%02X", n_ptr
- encoded
, encoded_len
, *n_ptr
, *(n_ptr
+ 1));
84 php_error_docref(NULL
, E_WARNING
, "Expected LF at pos %tu of %zu but got 0x%02X", n_ptr
- encoded
, encoded_len
, *n_ptr
);
89 /* chunk size pretends more data than we actually got, so it's probably a truncated message */
90 if (chunk_len
> (rest
= encoded
+ encoded_len
- n_ptr
)) {
91 php_error_docref(NULL
, E_WARNING
, "Truncated message: chunk size %lu exceeds remaining data size %lu at pos %tu of %zu", chunk_len
, rest
, n_ptr
- encoded
, encoded_len
);
96 memcpy(*decoded
+ *decoded_len
, n_ptr
, chunk_len
);
97 *decoded_len
+= chunk_len
;
99 if (chunk_len
== rest
) {
100 e_ptr
= n_ptr
+ chunk_len
;
103 /* advance to next chunk */
104 e_ptr
= n_ptr
+ chunk_len
+ eol_len
;
111 static inline int php_http_inflate_rounds(z_stream
*Z
, int flush
, char **buf
, size_t *len
)
113 int status
= 0, round
= 0;
114 php_http_buffer_t buffer
;
119 php_http_buffer_init_ex(&buffer
, Z
->avail_in
, PHP_HTTP_BUFFER_INIT_PREALLOC
);
122 if (PHP_HTTP_BUFFER_NOMEM
== php_http_buffer_resize_ex(&buffer
, buffer
.size
, 0, 1)) {
123 status
= Z_MEM_ERROR
;
125 Z
->avail_out
= buffer
.free
;
126 Z
->next_out
= (Bytef
*) buffer
.data
+ buffer
.used
;
128 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
);
130 status
= inflate(Z
, flush
);
131 php_http_buffer_account(&buffer
, buffer
.free
- Z
->avail_out
);
133 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
);
135 PHP_HTTP_INFLATE_BUFFER_SIZE_ALIGN(buffer
.size
);
137 } while ((Z_BUF_ERROR
== status
|| (Z_OK
== status
&& Z
->avail_in
)) && ++round
< PHP_HTTP_INFLATE_ROUNDS
);
139 if (status
== Z_OK
|| status
== Z_STREAM_END
) {
140 php_http_buffer_shrink(&buffer
);
141 php_http_buffer_fix(&buffer
);
145 php_http_buffer_dtor(&buffer
);
151 ZEND_RESULT_CODE
php_http_encoding_deflate(int flags
, const char *data
, size_t data_len
, char **encoded
, size_t *encoded_len
)
153 int status
, level
, wbits
, strategy
;
156 PHP_HTTP_DEFLATE_LEVEL_SET(flags
, level
);
157 PHP_HTTP_DEFLATE_WBITS_SET(flags
, wbits
);
158 PHP_HTTP_DEFLATE_STRATEGY_SET(flags
, strategy
);
160 memset(&Z
, 0, sizeof(z_stream
));
164 status
= deflateInit2(&Z
, level
, Z_DEFLATED
, wbits
, MAX_MEM_LEVEL
, strategy
);
165 if (Z_OK
== status
) {
166 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len
);
167 *encoded
= emalloc(*encoded_len
);
169 Z
.next_in
= (Bytef
*) data
;
170 Z
.next_out
= (Bytef
*) *encoded
;
171 Z
.avail_in
= data_len
;
172 Z
.avail_out
= *encoded_len
;
174 status
= deflate(&Z
, Z_FINISH
);
177 if (Z_STREAM_END
== status
) {
178 /* size buffer down to actual length */
179 *encoded
= erealloc(*encoded
, Z
.total_out
+ 1);
180 (*encoded
)[*encoded_len
= Z
.total_out
] = '\0';
183 PTR_SET(*encoded
, NULL
);
188 php_error_docref(NULL
, E_WARNING
, "Could not deflate data: %s", zError(status
));
192 ZEND_RESULT_CODE
php_http_encoding_inflate(const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
195 int status
, wbits
= PHP_HTTP_WINDOW_BITS_ANY
;
197 memset(&Z
, 0, sizeof(z_stream
));
200 status
= inflateInit2(&Z
, wbits
);
201 if (Z_OK
== status
) {
202 Z
.next_in
= (Bytef
*) data
;
203 Z
.avail_in
= data_len
+ 1; /* include the terminating NULL, see #61287 */
205 switch (status
= php_http_inflate_rounds(&Z
, Z_NO_FLUSH
, decoded
, decoded_len
)) {
211 status
= Z_DATA_ERROR
;
215 /* raw deflated data? */
216 if (PHP_HTTP_WINDOW_BITS_ANY
== wbits
) {
218 wbits
= PHP_HTTP_WINDOW_BITS_RAW
;
219 goto retry_raw_inflate
;
225 if (decoded_len
&& *decoded
) {
230 php_error_docref(NULL
, E_WARNING
, "Could not inflate data: %s", zError(status
));
234 php_http_encoding_stream_t
*php_http_encoding_stream_init(php_http_encoding_stream_t
*s
, php_http_encoding_stream_ops_t
*ops
, unsigned flags
)
239 s
= pemalloc(sizeof(*s
), (flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
241 memset(s
, 0, sizeof(*s
));
245 if ((s
->ops
= ops
)) {
246 php_http_encoding_stream_t
*ss
= s
->ops
->init(s
);
256 pefree(s
, (flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
261 php_http_encoding_stream_t
*php_http_encoding_stream_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
263 if (from
->ops
->copy
) {
265 php_http_encoding_stream_t
*ns
;
267 if ((freeme
= !to
)) {
268 to
= pemalloc(sizeof(*to
), (from
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
270 memset(to
, 0, sizeof(*to
));
272 to
->flags
= from
->flags
;
275 if ((ns
= to
->ops
->copy(from
, to
))) {
282 pefree(to
, (to
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
289 ZEND_RESULT_CODE
php_http_encoding_stream_reset(php_http_encoding_stream_t
**s
)
291 php_http_encoding_stream_t
*ss
;
293 if ((*s
)->ops
->dtor
) {
296 if ((ss
= (*s
)->ops
->init(*s
))) {
303 ZEND_RESULT_CODE
php_http_encoding_stream_update(php_http_encoding_stream_t
*s
, const char *in_str
, size_t in_len
, char **out_str
, size_t *out_len
)
305 if (!s
->ops
->update
) {
308 return s
->ops
->update(s
, in_str
, in_len
, out_str
, out_len
);
311 ZEND_RESULT_CODE
php_http_encoding_stream_flush(php_http_encoding_stream_t
*s
, char **out_str
, size_t *out_len
)
313 if (!s
->ops
->flush
) {
318 return s
->ops
->flush(s
, out_str
, out_len
);
321 zend_bool
php_http_encoding_stream_done(php_http_encoding_stream_t
*s
)
326 return s
->ops
->done(s
);
329 ZEND_RESULT_CODE
php_http_encoding_stream_finish(php_http_encoding_stream_t
*s
, char **out_str
, size_t *out_len
)
331 if (!s
->ops
->finish
) {
336 return s
->ops
->finish(s
, out_str
, out_len
);
339 void php_http_encoding_stream_dtor(php_http_encoding_stream_t
*s
)
346 void php_http_encoding_stream_free(php_http_encoding_stream_t
**s
)
349 if ((*s
)->ops
->dtor
) {
352 pefree(*s
, ((*s
)->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
358 php_http_buffer_t buffer
;
363 static php_http_encoding_stream_t
*deflate_init(php_http_encoding_stream_t
*s
)
365 int status
, level
, wbits
, strategy
, p
= (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
);
366 z_streamp ctx
= pecalloc(1, sizeof(z_stream
), p
);
368 PHP_HTTP_DEFLATE_LEVEL_SET(s
->flags
, level
);
369 PHP_HTTP_DEFLATE_WBITS_SET(s
->flags
, wbits
);
370 PHP_HTTP_DEFLATE_STRATEGY_SET(s
->flags
, strategy
);
372 if (Z_OK
== (status
= deflateInit2(ctx
, level
, Z_DEFLATED
, wbits
, MAX_MEM_LEVEL
, strategy
))) {
373 if ((ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
378 status
= Z_MEM_ERROR
;
381 php_error_docref(NULL
, E_WARNING
, "Failed to initialize deflate encoding stream: %s", zError(status
));
385 static php_http_encoding_stream_t
*inflate_init(php_http_encoding_stream_t
*s
)
387 int status
, wbits
, p
= (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
);
388 z_streamp ctx
= pecalloc(1, sizeof(z_stream
), p
);
390 PHP_HTTP_INFLATE_WBITS_SET(s
->flags
, wbits
);
392 if (Z_OK
== (status
= inflateInit2(ctx
, wbits
))) {
393 if ((ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
398 status
= Z_MEM_ERROR
;
401 php_error_docref(NULL
, E_WARNING
, "Failed to initialize inflate stream: %s", zError(status
));
405 static php_http_encoding_stream_t
*dechunk_init(php_http_encoding_stream_t
*s
)
407 struct dechunk_ctx
*ctx
= pecalloc(1, sizeof(*ctx
), (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
409 if (!php_http_buffer_init_ex(&ctx
->buffer
, PHP_HTTP_BUFFER_DEFAULT_SIZE
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
) ? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0)) {
420 static php_http_encoding_stream_t
*deflate_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
422 int status
, p
= to
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
;
423 z_streamp from_ctx
= from
->ctx
, to_ctx
= pecalloc(1, sizeof(*to_ctx
), p
);
425 if (Z_OK
== (status
= deflateCopy(to_ctx
, from_ctx
))) {
426 if ((to_ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
427 php_http_buffer_append(to_ctx
->opaque
, PHP_HTTP_BUFFER(from_ctx
->opaque
)->data
, PHP_HTTP_BUFFER(from_ctx
->opaque
)->used
);
432 status
= Z_MEM_ERROR
;
434 php_error_docref(NULL
, E_WARNING
, "Failed to copy deflate encoding stream: %s", zError(status
));
438 static php_http_encoding_stream_t
*inflate_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
440 int status
, p
= from
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
;
441 z_streamp from_ctx
= from
->ctx
, to_ctx
= pecalloc(1, sizeof(*to_ctx
), p
);
443 if (Z_OK
== (status
= inflateCopy(to_ctx
, from_ctx
))) {
444 if ((to_ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
445 php_http_buffer_append(to_ctx
->opaque
, PHP_HTTP_BUFFER(from_ctx
->opaque
)->data
, PHP_HTTP_BUFFER(from_ctx
->opaque
)->used
);
450 status
= Z_MEM_ERROR
;
452 php_error_docref(NULL
, E_WARNING
, "Failed to copy inflate encoding stream: %s", zError(status
));
456 static php_http_encoding_stream_t
*dechunk_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
458 int p
= from
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
;
459 struct dechunk_ctx
*from_ctx
= from
->ctx
, *to_ctx
= pemalloc(sizeof(*to_ctx
), p
);
461 if (php_http_buffer_init_ex(&to_ctx
->buffer
, PHP_HTTP_BUFFER_DEFAULT_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0)) {
462 to_ctx
->hexlen
= from_ctx
->hexlen
;
463 to_ctx
->zeroed
= from_ctx
->zeroed
;
464 php_http_buffer_append(&to_ctx
->buffer
, from_ctx
->buffer
.data
, from_ctx
->buffer
.used
);
469 php_error_docref(NULL
, E_WARNING
, "Failed to copy inflate encoding stream: out of memory");
473 static ZEND_RESULT_CODE
deflate_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **encoded
, size_t *encoded_len
)
476 z_streamp ctx
= s
->ctx
;
478 /* append input to our buffer */
479 php_http_buffer_append(PHP_HTTP_BUFFER(ctx
->opaque
), data
, data_len
);
481 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER(ctx
->opaque
)->data
;
482 ctx
->avail_in
= PHP_HTTP_BUFFER(ctx
->opaque
)->used
;
485 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len
);
486 *encoded
= emalloc(*encoded_len
);
487 ctx
->avail_out
= *encoded_len
;
488 ctx
->next_out
= (Bytef
*) *encoded
;
490 switch (status
= deflate(ctx
, PHP_HTTP_ENCODING_STREAM_FLUSH_FLAG(s
->flags
))) {
493 /* cut processed chunk off the buffer */
495 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER(ctx
->opaque
)->used
- ctx
->avail_in
);
497 php_http_buffer_reset(PHP_HTTP_BUFFER(ctx
->opaque
));
500 /* size buffer down to actual size */
501 *encoded_len
-= ctx
->avail_out
;
502 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
503 (*encoded
)[*encoded_len
] = '\0';
507 PTR_SET(*encoded
, NULL
);
509 php_error_docref(NULL
, E_WARNING
, "Failed to update deflate stream: %s", zError(status
));
513 static ZEND_RESULT_CODE
inflate_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
516 z_streamp ctx
= s
->ctx
;
518 /* append input to buffer */
519 php_http_buffer_append(PHP_HTTP_BUFFER(ctx
->opaque
), data
, data_len
);
522 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER(ctx
->opaque
)->data
;
523 ctx
->avail_in
= PHP_HTTP_BUFFER(ctx
->opaque
)->used
;
525 switch (status
= php_http_inflate_rounds(ctx
, PHP_HTTP_ENCODING_STREAM_FLUSH_FLAG(s
->flags
), decoded
, decoded_len
)) {
530 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER(ctx
->opaque
)->used
- ctx
->avail_in
);
532 php_http_buffer_reset(PHP_HTTP_BUFFER(ctx
->opaque
));
537 /* raw deflated data ? */
538 if (!(s
->flags
& PHP_HTTP_INFLATE_TYPE_RAW
) && !ctx
->total_out
) {
540 s
->flags
|= PHP_HTTP_INFLATE_TYPE_RAW
;
541 inflateInit2(ctx
, PHP_HTTP_WINDOW_BITS_RAW
);
542 goto retry_raw_inflate
;
547 php_error_docref(NULL
, E_WARNING
, "Failed to update inflate stream: %s", zError(status
));
551 static ZEND_RESULT_CODE
dechunk_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
553 php_http_buffer_t tmp
;
554 struct dechunk_ctx
*ctx
= s
->ctx
;
557 php_error_docref(NULL
, E_WARNING
, "Dechunk encoding stream has already reached the end of chunked input");
560 if ((PHP_HTTP_BUFFER_NOMEM
== php_http_buffer_append(&ctx
->buffer
, data
, data_len
)) || !php_http_buffer_fix(&ctx
->buffer
)) {
568 php_http_buffer_init(&tmp
);
570 /* we have data in our buffer */
571 while (ctx
->buffer
.used
) {
573 /* we already know the size of the chunk and are waiting for data */
576 /* not enough data buffered */
577 if (ctx
->buffer
.used
< ctx
->hexlen
) {
580 if (s
->flags
& PHP_HTTP_ENCODING_STREAM_FLUSH_FULL
) {
581 /* flush all data (should only be chunk data) */
582 php_http_buffer_append(&tmp
, ctx
->buffer
.data
, ctx
->buffer
.used
);
583 /* waiting for less data now */
584 ctx
->hexlen
-= ctx
->buffer
.used
;
585 /* no more buffered data */
586 php_http_buffer_reset(&ctx
->buffer
);
590 /* we have too less data and don't need to flush */
596 /* we seem to have all data of the chunk */
598 php_http_buffer_append(&tmp
, ctx
->buffer
.data
, ctx
->hexlen
);
599 /* remove outgoing data from the buffer */
600 php_http_buffer_cut(&ctx
->buffer
, 0, ctx
->hexlen
);
607 /* we don't know the length of the chunk yet */
611 /* ignore preceeding CRLFs (too loose?) */
612 while (off
< ctx
->buffer
.used
&& (
613 ctx
->buffer
.data
[off
] == '\n' ||
614 ctx
->buffer
.data
[off
] == '\r')) {
618 php_http_buffer_cut(&ctx
->buffer
, 0, off
);
621 /* still data there? */
622 if (ctx
->buffer
.used
) {
626 /* we need eol, so we can be sure we have all hex digits */
627 php_http_buffer_fix(&ctx
->buffer
);
628 if ((eolstr
= php_http_locate_bin_eol(ctx
->buffer
.data
, ctx
->buffer
.used
, &eollen
))) {
631 /* read in chunk size */
632 ctx
->hexlen
= strtoul(ctx
->buffer
.data
, &stop
, 16);
634 /* if strtoul() stops at the beginning of the buffered data
635 there's something oddly wrong, i.e. bad input */
636 if (stop
== ctx
->buffer
.data
) {
637 php_error_docref(NULL TSRMLS_CC
, E_WARNING
, "Failed to parse chunk len from '%.*s'", (int) MIN(16, ctx
->buffer
.used
), ctx
->buffer
.data
);
638 php_http_buffer_dtor(&tmp
);
642 /* cut out <chunk size hex><chunk extension><eol> */
643 php_http_buffer_cut(&ctx
->buffer
, 0, eolstr
+ eollen
- ctx
->buffer
.data
);
644 /* buffer->hexlen is 0 now or contains the size of the next chunk */
648 /* ignore following CRLFs (too loose?) */
649 while (off
< ctx
->buffer
.used
&& (
650 ctx
->buffer
.data
[off
] == '\n' ||
651 ctx
->buffer
.data
[off
] == '\r')) {
655 php_http_buffer_cut(&ctx
->buffer
, 0, off
);
663 /* we have not enough data buffered to read in chunk size */
671 php_http_buffer_fix(&tmp
);
673 *decoded_len
= tmp
.used
;
678 static ZEND_RESULT_CODE
deflate_flush(php_http_encoding_stream_t
*s
, char **encoded
, size_t *encoded_len
)
681 z_streamp ctx
= s
->ctx
;
683 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
;
684 *encoded
= emalloc(*encoded_len
);
688 ctx
->avail_out
= *encoded_len
;
689 ctx
->next_out
= (Bytef
*) *encoded
;
691 switch (status
= deflate(ctx
, Z_FULL_FLUSH
)) {
694 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
- ctx
->avail_out
;
695 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
696 (*encoded
)[*encoded_len
] = '\0';
700 PTR_SET(*encoded
, NULL
);
702 php_error_docref(NULL
, E_WARNING
, "Failed to flush deflate stream: %s", zError(status
));
706 static ZEND_RESULT_CODE
dechunk_flush(php_http_encoding_stream_t
*s
, char **decoded
, size_t *decoded_len
)
708 struct dechunk_ctx
*ctx
= s
->ctx
;
711 /* flush all data (should only be chunk data) */
712 php_http_buffer_fix(&ctx
->buffer
);
713 php_http_buffer_data(&ctx
->buffer
, decoded
, decoded_len
);
714 /* waiting for less data now */
715 ctx
->hexlen
-= ctx
->buffer
.used
;
716 /* no more buffered data */
717 php_http_buffer_reset(&ctx
->buffer
);
726 static ZEND_RESULT_CODE
deflate_finish(php_http_encoding_stream_t
*s
, char **encoded
, size_t *encoded_len
)
729 z_streamp ctx
= s
->ctx
;
731 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
;
732 *encoded
= emalloc(*encoded_len
);
734 /* deflate remaining input */
735 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER(ctx
->opaque
)->data
;
736 ctx
->avail_in
= PHP_HTTP_BUFFER(ctx
->opaque
)->used
;
738 ctx
->avail_out
= *encoded_len
;
739 ctx
->next_out
= (Bytef
*) *encoded
;
742 status
= deflate(ctx
, Z_FINISH
);
743 } while (Z_OK
== status
);
745 if (Z_STREAM_END
== status
) {
746 /* cut processed input off */
747 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER(ctx
->opaque
)->used
- ctx
->avail_in
);
750 *encoded_len
-= ctx
->avail_out
;
751 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
752 (*encoded
)[*encoded_len
] = '\0';
756 PTR_SET(*encoded
, NULL
);
758 php_error_docref(NULL
, E_WARNING
, "Failed to finish deflate stream: %s", zError(status
));
762 static ZEND_RESULT_CODE
inflate_finish(php_http_encoding_stream_t
*s
, char **decoded
, size_t *decoded_len
)
765 z_streamp ctx
= s
->ctx
;
767 if (!PHP_HTTP_BUFFER(ctx
->opaque
)->used
) {
773 *decoded_len
= (PHP_HTTP_BUFFER(ctx
->opaque
)->used
+ 1) * PHP_HTTP_INFLATE_ROUNDS
;
774 *decoded
= emalloc(*decoded_len
);
776 /* inflate remaining input */
777 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER(ctx
->opaque
)->data
;
778 ctx
->avail_in
= PHP_HTTP_BUFFER(ctx
->opaque
)->used
;
780 ctx
->avail_out
= *decoded_len
;
781 ctx
->next_out
= (Bytef
*) *decoded
;
783 if (Z_STREAM_END
== (status
= inflate(ctx
, Z_FINISH
))) {
784 /* cut processed input off */
785 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER(ctx
->opaque
)->used
- ctx
->avail_in
);
788 *decoded_len
-= ctx
->avail_out
;
789 *decoded
= erealloc(*decoded
, *decoded_len
+ 1);
790 (*decoded
)[*decoded_len
] = '\0';
794 PTR_SET(*decoded
, NULL
);
796 php_error_docref(NULL
, E_WARNING
, "Failed to finish inflate stream: %s", zError(status
));
800 static zend_bool
deflate_done(php_http_encoding_stream_t
*s
)
802 z_streamp ctx
= s
->ctx
;
803 return !ctx
->avail_in
&& !PHP_HTTP_BUFFER(ctx
->opaque
)->used
;
806 static zend_bool
inflate_done(php_http_encoding_stream_t
*s
)
808 z_streamp ctx
= s
->ctx
;
809 return !ctx
->avail_in
&& !PHP_HTTP_BUFFER(ctx
->opaque
)->used
;
812 static zend_bool
dechunk_done(php_http_encoding_stream_t
*s
)
814 return ((struct dechunk_ctx
*) s
->ctx
)->zeroed
;
817 static void deflate_dtor(php_http_encoding_stream_t
*s
)
820 z_streamp ctx
= s
->ctx
;
823 php_http_buffer_free((php_http_buffer_t
**) &ctx
->opaque
);
826 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
831 static void inflate_dtor(php_http_encoding_stream_t
*s
)
834 z_streamp ctx
= s
->ctx
;
837 php_http_buffer_free((php_http_buffer_t
**) &ctx
->opaque
);
840 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
845 static void dechunk_dtor(php_http_encoding_stream_t
*s
)
848 struct dechunk_ctx
*ctx
= s
->ctx
;
850 php_http_buffer_dtor(&ctx
->buffer
);
851 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
856 static php_http_encoding_stream_ops_t php_http_encoding_deflate_ops
= {
866 php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_deflate_ops(void)
868 return &php_http_encoding_deflate_ops
;
871 static php_http_encoding_stream_ops_t php_http_encoding_inflate_ops
= {
881 php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_inflate_ops(void)
883 return &php_http_encoding_inflate_ops
;
886 static php_http_encoding_stream_ops_t php_http_encoding_dechunk_ops
= {
896 php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_dechunk_ops(void)
898 return &php_http_encoding_dechunk_ops
;
901 static zend_object_handlers php_http_encoding_stream_object_handlers
;
903 zend_object
*php_http_encoding_stream_object_new(zend_class_entry
*ce
)
905 return &php_http_encoding_stream_object_new_ex(ce
, NULL
)->zo
;
908 php_http_encoding_stream_object_t
*php_http_encoding_stream_object_new_ex(zend_class_entry
*ce
, php_http_encoding_stream_t
*s
)
910 php_http_encoding_stream_object_t
*o
;
912 o
= ecalloc(1, sizeof(*o
) + (ce
->default_properties_count
- 1) * sizeof(zval
));
913 zend_object_std_init(&o
->zo
, ce
);
914 object_properties_init(&o
->zo
, ce
);
920 o
->zo
.handlers
= &php_http_encoding_stream_object_handlers
;
925 zend_object
*php_http_encoding_stream_object_clone(zval
*object
)
927 php_http_encoding_stream_object_t
*new_obj
= NULL
, *old_obj
= PHP_HTTP_OBJ(NULL
, object
);
928 php_http_encoding_stream_t
*cpy
= php_http_encoding_stream_copy(old_obj
->stream
, NULL
);
930 new_obj
= php_http_encoding_stream_object_new_ex(old_obj
->zo
.ce
, cpy
);
931 zend_objects_clone_members(&new_obj
->zo
, &old_obj
->zo
);
936 void php_http_encoding_stream_object_free(zend_object
*object
)
938 php_http_encoding_stream_object_t
*o
= PHP_HTTP_OBJ(object
, NULL
);
941 php_http_encoding_stream_free(&o
->stream
);
943 zend_object_std_dtor(object
);
946 ZEND_BEGIN_ARG_INFO_EX(ai_HttpEncodingStream___construct
, 0, 0, 0)
947 ZEND_ARG_INFO(0, flags
)
949 static PHP_METHOD(HttpEncodingStream
, __construct
)
952 php_http_encoding_stream_object_t
*obj
;
953 php_http_encoding_stream_ops_t
*ops
;
955 php_http_expect(SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS(), "|l", &flags
), invalid_arg
, return);
957 obj
= PHP_HTTP_OBJ(NULL
, getThis());
960 php_http_throw(bad_method_call
, "http\\Encoding\\Stream cannot be initialized twice", NULL
);
964 if (instanceof_function(obj
->zo
.ce
, php_http_deflate_stream_class_entry
)) {
965 ops
= &php_http_encoding_deflate_ops
;
966 } else if (instanceof_function(obj
->zo
.ce
, php_http_inflate_stream_class_entry
)) {
967 ops
= &php_http_encoding_inflate_ops
;
968 } else if (instanceof_function(obj
->zo
.ce
, php_http_dechunk_stream_class_entry
)) {
969 ops
= &php_http_encoding_dechunk_ops
;
971 php_http_throw(runtime
, "Unknown http\\Encoding\\Stream class '%s'", obj
->zo
.ce
->name
->val
);
975 php_http_expect(obj
->stream
= php_http_encoding_stream_init(obj
->stream
, ops
, flags
), runtime
, return);
978 ZEND_BEGIN_ARG_INFO_EX(ai_HttpEncodingStream_update
, 0, 0, 1)
979 ZEND_ARG_INFO(0, data
)
981 static PHP_METHOD(HttpEncodingStream
, update
)
986 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS(), "s", &data_str
, &data_len
)) {
987 php_http_encoding_stream_object_t
*obj
= PHP_HTTP_OBJ(NULL
, getThis());
990 char *encoded_str
= NULL
;
993 if (SUCCESS
== php_http_encoding_stream_update(obj
->stream
, data_str
, data_len
, &encoded_str
, &encoded_len
)) {
995 RETURN_STR(php_http_cs2zs(encoded_str
, encoded_len
));
997 RETURN_EMPTY_STRING();
1004 ZEND_BEGIN_ARG_INFO_EX(ai_HttpEncodingStream_flush
, 0, 0, 0)
1005 ZEND_END_ARG_INFO();
1006 static PHP_METHOD(HttpEncodingStream
, flush
)
1008 if (SUCCESS
== zend_parse_parameters_none()) {
1009 php_http_encoding_stream_object_t
*obj
= PHP_HTTP_OBJ(NULL
, getThis());
1012 char *encoded_str
= NULL
;
1015 if (SUCCESS
== php_http_encoding_stream_flush(obj
->stream
, &encoded_str
, &encoded_len
)) {
1017 RETURN_STR(php_http_cs2zs(encoded_str
, encoded_len
));
1019 RETURN_EMPTY_STRING();
1026 ZEND_BEGIN_ARG_INFO_EX(ai_HttpEncodingStream_done
, 0, 0, 0)
1027 ZEND_END_ARG_INFO();
1028 static PHP_METHOD(HttpEncodingStream
, done
)
1030 if (SUCCESS
== zend_parse_parameters_none()) {
1031 php_http_encoding_stream_object_t
*obj
= PHP_HTTP_OBJ(NULL
, getThis());
1034 RETURN_BOOL(php_http_encoding_stream_done(obj
->stream
));
1039 ZEND_BEGIN_ARG_INFO_EX(ai_HttpEncodingStream_finish
, 0, 0, 0)
1040 ZEND_END_ARG_INFO();
1041 static PHP_METHOD(HttpEncodingStream
, finish
)
1043 if (SUCCESS
== zend_parse_parameters_none()) {
1044 php_http_encoding_stream_object_t
*obj
= PHP_HTTP_OBJ(NULL
, getThis());
1047 char *encoded_str
= NULL
;
1050 if (SUCCESS
== php_http_encoding_stream_finish(obj
->stream
, &encoded_str
, &encoded_len
)) {
1051 if (SUCCESS
== php_http_encoding_stream_reset(&obj
->stream
)) {
1053 RETURN_STR(php_http_cs2zs(encoded_str
, encoded_len
));
1055 RETURN_EMPTY_STRING();
1058 PTR_FREE(encoded_str
);
1065 static zend_function_entry php_http_encoding_stream_methods
[] = {
1066 PHP_ME(HttpEncodingStream
, __construct
, ai_HttpEncodingStream___construct
, ZEND_ACC_PUBLIC
|ZEND_ACC_CTOR
)
1067 PHP_ME(HttpEncodingStream
, update
, ai_HttpEncodingStream_update
, ZEND_ACC_PUBLIC
)
1068 PHP_ME(HttpEncodingStream
, flush
, ai_HttpEncodingStream_flush
, ZEND_ACC_PUBLIC
)
1069 PHP_ME(HttpEncodingStream
, done
, ai_HttpEncodingStream_done
, ZEND_ACC_PUBLIC
)
1070 PHP_ME(HttpEncodingStream
, finish
, ai_HttpEncodingStream_finish
, ZEND_ACC_PUBLIC
)
1071 EMPTY_FUNCTION_ENTRY
1074 ZEND_BEGIN_ARG_INFO_EX(ai_HttpDeflateStream_encode
, 0, 0, 1)
1075 ZEND_ARG_INFO(0, data
)
1076 ZEND_ARG_INFO(0, flags
)
1077 ZEND_END_ARG_INFO();
1078 static PHP_METHOD(HttpDeflateStream
, encode
)
1082 zend_long flags
= 0;
1084 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS(), "s|l", &str
, &len
, &flags
)) {
1085 char *enc_str
= NULL
;
1088 if (SUCCESS
== php_http_encoding_deflate(flags
, str
, len
, &enc_str
, &enc_len
)) {
1090 RETURN_STR(php_http_cs2zs(enc_str
, enc_len
));
1092 RETURN_EMPTY_STRING();
1099 static zend_function_entry php_http_deflate_stream_methods
[] = {
1100 PHP_ME(HttpDeflateStream
, encode
, ai_HttpDeflateStream_encode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1101 EMPTY_FUNCTION_ENTRY
1104 ZEND_BEGIN_ARG_INFO_EX(ai_HttpInflateStream_decode
, 0, 0, 1)
1105 ZEND_ARG_INFO(0, data
)
1106 ZEND_END_ARG_INFO();
1107 static PHP_METHOD(HttpInflateStream
, decode
)
1112 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS(), "s", &str
, &len
)) {
1113 char *enc_str
= NULL
;
1116 if (SUCCESS
== php_http_encoding_inflate(str
, len
, &enc_str
, &enc_len
)) {
1118 RETURN_STR(php_http_cs2zs(enc_str
, enc_len
));
1120 RETURN_EMPTY_STRING();
1127 static zend_function_entry php_http_inflate_stream_methods
[] = {
1128 PHP_ME(HttpInflateStream
, decode
, ai_HttpInflateStream_decode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1129 EMPTY_FUNCTION_ENTRY
1132 ZEND_BEGIN_ARG_INFO_EX(ai_HttpDechunkStream_decode
, 0, 0, 1)
1133 ZEND_ARG_INFO(0, data
)
1134 ZEND_ARG_INFO(1, decoded_len
)
1135 ZEND_END_ARG_INFO();
1136 static PHP_METHOD(HttpDechunkStream
, decode
)
1142 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS(), "s|z!", &str
, &len
, &zlen
)) {
1143 const char *end_ptr
;
1144 char *enc_str
= NULL
;
1147 if ((end_ptr
= php_http_encoding_dechunk(str
, len
, &enc_str
, &enc_len
))) {
1150 ZVAL_LONG(zlen
, str
+ len
- end_ptr
);
1153 RETURN_STR(php_http_cs2zs(enc_str
, enc_len
));
1155 RETURN_EMPTY_STRING();
1162 static zend_function_entry php_http_dechunk_stream_methods
[] = {
1163 PHP_ME(HttpDechunkStream
, decode
, ai_HttpDechunkStream_decode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1164 EMPTY_FUNCTION_ENTRY
1167 zend_class_entry
*php_http_encoding_stream_class_entry
;
1168 zend_class_entry
*php_http_deflate_stream_class_entry
;
1169 zend_class_entry
*php_http_inflate_stream_class_entry
;
1170 zend_class_entry
*php_http_dechunk_stream_class_entry
;
1172 PHP_MINIT_FUNCTION(http_encoding
)
1174 zend_class_entry ce
= {0};
1176 INIT_NS_CLASS_ENTRY(ce
, "http\\Encoding", "Stream", php_http_encoding_stream_methods
);
1177 php_http_encoding_stream_class_entry
= zend_register_internal_class(&ce
);
1178 php_http_encoding_stream_class_entry
->ce_flags
|= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS
;
1179 php_http_encoding_stream_class_entry
->create_object
= php_http_encoding_stream_object_new
;
1180 memcpy(&php_http_encoding_stream_object_handlers
, zend_get_std_object_handlers(), sizeof(zend_object_handlers
));
1181 php_http_encoding_stream_object_handlers
.clone_obj
= php_http_encoding_stream_object_clone
;
1182 php_http_encoding_stream_object_handlers
.free_obj
= php_http_encoding_stream_object_free
;
1184 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_NONE"), PHP_HTTP_ENCODING_STREAM_FLUSH_NONE
);
1185 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_SYNC"), PHP_HTTP_ENCODING_STREAM_FLUSH_SYNC
);
1186 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_FULL"), PHP_HTTP_ENCODING_STREAM_FLUSH_FULL
);
1188 memset(&ce
, 0, sizeof(ce
));
1189 INIT_NS_CLASS_ENTRY(ce
, "http\\Encoding\\Stream", "Deflate", php_http_deflate_stream_methods
);
1190 php_http_deflate_stream_class_entry
= zend_register_internal_class_ex(&ce
, php_http_encoding_stream_class_entry
);
1192 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_GZIP"), PHP_HTTP_DEFLATE_TYPE_GZIP
);
1193 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_ZLIB"), PHP_HTTP_DEFLATE_TYPE_ZLIB
);
1194 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_RAW"), PHP_HTTP_DEFLATE_TYPE_RAW
);
1195 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_DEF"), PHP_HTTP_DEFLATE_LEVEL_DEF
);
1196 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_MIN"), PHP_HTTP_DEFLATE_LEVEL_MIN
);
1197 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_MAX"), PHP_HTTP_DEFLATE_LEVEL_MAX
);
1198 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_DEF"), PHP_HTTP_DEFLATE_STRATEGY_DEF
);
1199 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_FILT"), PHP_HTTP_DEFLATE_STRATEGY_FILT
);
1200 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_HUFF"), PHP_HTTP_DEFLATE_STRATEGY_HUFF
);
1201 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_RLE"), PHP_HTTP_DEFLATE_STRATEGY_RLE
);
1202 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_FIXED"), PHP_HTTP_DEFLATE_STRATEGY_FIXED
);
1204 memset(&ce
, 0, sizeof(ce
));
1205 INIT_NS_CLASS_ENTRY(ce
, "http\\Encoding\\Stream", "Inflate", php_http_inflate_stream_methods
);
1206 php_http_inflate_stream_class_entry
= zend_register_internal_class_ex(&ce
, php_http_encoding_stream_class_entry
);
1208 memset(&ce
, 0, sizeof(ce
));
1209 INIT_NS_CLASS_ENTRY(ce
, "http\\Encoding\\Stream", "Dechunk", php_http_dechunk_stream_methods
);
1210 php_http_dechunk_stream_class_entry
= zend_register_internal_class_ex(&ce
, php_http_encoding_stream_class_entry
);
1221 * vim600: noet sw=4 ts=4 fdm=marker
1222 * vim<600: noet sw=4 ts=4