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) 2004-2010, Michael Wallner <mike@php.net> |
10 +--------------------------------------------------------------------+
13 /* $Id: http_encoding_api.c 298592 2010-04-26 11:47:29Z mike $ */
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 PHP_HTTP_API
const char *php_http_encoding_dechunk(const char *encoded
, size_t encoded_len
, char **decoded
, size_t *decoded_len TSRMLS_DC
)
35 const char *e_ptr
= encoded
;
38 *decoded
= ecalloc(1, encoded_len
);
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_http_error(HE_NOTICE
, PHP_HTTP_E_ENCODING
, "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_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "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_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "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_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "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_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "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 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
);
132 buffer
.used
+= buffer
.free
- Z
->avail_out
;
133 buffer
.free
= Z
->avail_out
;
135 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
);
137 PHP_HTTP_INFLATE_BUFFER_SIZE_ALIGN(buffer
.size
);
139 } while ((Z_BUF_ERROR
== status
|| (Z_OK
== status
&& Z
->avail_in
)) && ++round
< PHP_HTTP_INFLATE_ROUNDS
);
141 if (status
== Z_OK
|| status
== Z_STREAM_END
) {
142 php_http_buffer_shrink(&buffer
);
143 php_http_buffer_fix(&buffer
);
147 php_http_buffer_dtor(&buffer
);
153 PHP_HTTP_API STATUS
php_http_encoding_deflate(int flags
, const char *data
, size_t data_len
, char **encoded
, size_t *encoded_len TSRMLS_DC
)
155 int status
, level
, wbits
, strategy
;
158 PHP_HTTP_DEFLATE_LEVEL_SET(flags
, level
);
159 PHP_HTTP_DEFLATE_WBITS_SET(flags
, wbits
);
160 PHP_HTTP_DEFLATE_STRATEGY_SET(flags
, strategy
);
162 memset(&Z
, 0, sizeof(z_stream
));
166 status
= deflateInit2(&Z
, level
, Z_DEFLATED
, wbits
, MAX_MEM_LEVEL
, strategy
);
167 if (Z_OK
== status
) {
168 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len
);
169 *encoded
= emalloc(*encoded_len
);
171 Z
.next_in
= (Bytef
*) data
;
172 Z
.next_out
= (Bytef
*) *encoded
;
173 Z
.avail_in
= data_len
;
174 Z
.avail_out
= *encoded_len
;
176 status
= deflate(&Z
, Z_FINISH
);
179 if (Z_STREAM_END
== status
) {
180 /* size buffer down to actual length */
181 *encoded
= erealloc(*encoded
, Z
.total_out
+ 1);
182 (*encoded
)[*encoded_len
= Z
.total_out
] = '\0';
185 STR_SET(*encoded
, NULL
);
190 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Could not deflate data: %s", zError(status
));
194 PHP_HTTP_API STATUS
php_http_encoding_inflate(const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len TSRMLS_DC
)
197 int status
, wbits
= PHP_HTTP_WINDOW_BITS_ANY
;
199 memset(&Z
, 0, sizeof(z_stream
));
202 status
= inflateInit2(&Z
, wbits
);
203 if (Z_OK
== status
) {
204 Z
.next_in
= (Bytef
*) data
;
205 Z
.avail_in
= data_len
;
207 switch (status
= php_http_inflate_rounds(&Z
, Z_NO_FLUSH
, decoded
, decoded_len
)) {
213 status
= Z_DATA_ERROR
;
217 /* raw deflated data? */
218 if (PHP_HTTP_WINDOW_BITS_ANY
== wbits
) {
220 wbits
= PHP_HTTP_WINDOW_BITS_RAW
;
221 goto retry_raw_inflate
;
226 if (decoded_len
&& *decoded
) {
231 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Could not inflate data: %s", zError(status
));
235 PHP_HTTP_API 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 TSRMLS_DC
)
240 s
= pemalloc(sizeof(*s
), (flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
242 memset(s
, 0, sizeof(*s
));
245 TSRMLS_SET_CTX(s
->ts
);
247 if ((s
->ops
= ops
)) {
248 php_http_encoding_stream_t
*ss
= s
->ops
->init(s
);
258 pefree(s
, (flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
263 PHP_HTTP_API php_http_encoding_stream_t
*php_http_encoding_stream_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
265 TSRMLS_FETCH_FROM_CTX(from
->ts
);
267 if (!from
->ops
->copy
) {
271 return from
->ops
->copy(from
, php_http_encoding_stream_init(to
, from
->ops
, from
->flags TSRMLS_CC
));
274 PHP_HTTP_API STATUS
php_http_encoding_stream_reset(php_http_encoding_stream_t
**s
)
276 php_http_encoding_stream_t
*ss
;
277 if ((*s
)->ops
->dtor
) {
280 if ((ss
= (*s
)->ops
->init(*s
))) {
287 PHP_HTTP_API STATUS
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
)
289 if (!s
->ops
->update
) {
292 return s
->ops
->update(s
, in_str
, in_len
, out_str
, out_len
);
295 PHP_HTTP_API STATUS
php_http_encoding_stream_flush(php_http_encoding_stream_t
*s
, char **out_str
, size_t *out_len
)
297 if (!s
->ops
->flush
) {
300 return s
->ops
->flush(s
, out_str
, out_len
);
303 PHP_HTTP_API zend_bool
php_http_encoding_stream_done(php_http_encoding_stream_t
*s
)
308 return s
->ops
->done(s
);
311 PHP_HTTP_API STATUS
php_http_encoding_stream_finish(php_http_encoding_stream_t
*s
, char **out_str
, size_t *out_len
)
313 if (!s
->ops
->finish
) {
316 return s
->ops
->finish(s
, out_str
, out_len
);
319 PHP_HTTP_API
void php_http_encoding_stream_dtor(php_http_encoding_stream_t
*s
)
326 PHP_HTTP_API
void php_http_encoding_stream_free(php_http_encoding_stream_t
**s
)
329 if ((*s
)->ops
->dtor
) {
332 pefree(*s
, ((*s
)->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
338 php_http_buffer buffer
;
343 static php_http_encoding_stream_t
*deflate_init(php_http_encoding_stream_t
*s
)
345 int status
, level
, wbits
, strategy
, p
= (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
);
346 z_streamp ctx
= pecalloc(1, sizeof(z_stream
), p
);
347 TSRMLS_FETCH_FROM_CTX(s
->ts
);
349 PHP_HTTP_DEFLATE_LEVEL_SET(s
->flags
, level
);
350 PHP_HTTP_DEFLATE_WBITS_SET(s
->flags
, wbits
);
351 PHP_HTTP_DEFLATE_STRATEGY_SET(s
->flags
, strategy
);
353 if (Z_OK
== (status
= deflateInit2(ctx
, level
, Z_DEFLATED
, wbits
, MAX_MEM_LEVEL
, strategy
))) {
354 if ((ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
359 status
= Z_MEM_ERROR
;
362 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to initialize deflate encoding stream: %s", zError(status
));
366 static php_http_encoding_stream_t
*inflate_init(php_http_encoding_stream_t
*s
)
368 int status
, wbits
, p
= (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
);
369 z_streamp ctx
= pecalloc(1, sizeof(z_stream
), p
);
370 TSRMLS_FETCH_FROM_CTX(s
->ts
);
372 PHP_HTTP_INFLATE_WBITS_SET(s
->flags
, wbits
);
374 if (Z_OK
== (status
= inflateInit2(ctx
, wbits
))) {
375 if ((ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
380 status
= Z_MEM_ERROR
;
383 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to initialize inflate stream: %s", zError(status
));
387 static php_http_encoding_stream_t
*dechunk_init(php_http_encoding_stream_t
*s
)
389 struct dechunk_ctx
*ctx
= pecalloc(1, sizeof(*ctx
), (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
390 TSRMLS_FETCH_FROM_CTX(s
->ts
);
392 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)) {
403 static php_http_encoding_stream_t
*deflate_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
405 z_streamp from_ctx
= from
->ctx
, to_ctx
= to
->ctx
;
407 deflateCopy(to_ctx
, from_ctx
);
408 php_http_buffer_append(to_ctx
->opaque
, PHP_HTTP_BUFFER_VAL(from_ctx
->opaque
), PHP_HTTP_BUFFER_LEN(from_ctx
->opaque
));
413 static php_http_encoding_stream_t
*inflate_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
415 z_streamp from_ctx
= from
->ctx
, to_ctx
= to
->ctx
;
417 inflateCopy(to_ctx
, from_ctx
);
418 php_http_buffer_append(to_ctx
->opaque
, PHP_HTTP_BUFFER_VAL(from_ctx
->opaque
), PHP_HTTP_BUFFER_LEN(from_ctx
->opaque
));
423 static php_http_encoding_stream_t
*dechunk_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
425 struct dechunk_ctx
*from_ctx
= from
->ctx
, *to_ctx
= to
->ctx
;
427 to_ctx
->hexlen
= from_ctx
->hexlen
;
428 to_ctx
->zeroed
= from_ctx
->zeroed
;
429 php_http_buffer_append(&to_ctx
->buffer
, PHP_HTTP_BUFFER_VAL(&from_ctx
->buffer
), PHP_HTTP_BUFFER_LEN(&from_ctx
->buffer
));
434 static STATUS
deflate_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **encoded
, size_t *encoded_len
)
437 z_streamp ctx
= s
->ctx
;
438 TSRMLS_FETCH_FROM_CTX(s
->ts
);
440 /* append input to our buffer */
441 php_http_buffer_append(PHP_HTTP_BUFFER(ctx
->opaque
), data
, data_len
);
443 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
444 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
447 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len
);
448 *encoded
= emalloc(*encoded_len
);
449 ctx
->avail_out
= *encoded_len
;
450 ctx
->next_out
= (Bytef
*) *encoded
;
452 switch (status
= deflate(ctx
, PHP_HTTP_ENCODING_STREAM_FLUSH_FLAG(s
->flags
))) {
455 /* cut processed chunk off the buffer */
457 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
459 php_http_buffer_reset(PHP_HTTP_BUFFER(ctx
->opaque
));
462 /* size buffer down to actual size */
463 *encoded_len
-= ctx
->avail_out
;
464 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
465 (*encoded
)[*encoded_len
] = '\0';
469 STR_SET(*encoded
, NULL
);
471 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to update deflate stream: %s", zError(status
));
475 static STATUS
inflate_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
478 z_streamp ctx
= s
->ctx
;
479 TSRMLS_FETCH_FROM_CTX(s
->ts
);
481 /* append input to buffer */
482 php_http_buffer_append(PHP_HTTP_BUFFER(ctx
->opaque
), data
, data_len
);
485 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
486 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
488 switch (status
= php_http_inflate_rounds(ctx
, PHP_HTTP_ENCODING_STREAM_FLUSH_FLAG(s
->flags
), decoded
, decoded_len
)) {
493 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
495 php_http_buffer_reset(PHP_HTTP_BUFFER(ctx
->opaque
));
500 /* raw deflated data ? */
501 if (!(s
->flags
& PHP_HTTP_INFLATE_TYPE_RAW
) && !ctx
->total_out
) {
503 s
->flags
|= PHP_HTTP_INFLATE_TYPE_RAW
;
504 inflateInit2(ctx
, PHP_HTTP_WINDOW_BITS_RAW
);
505 goto retry_raw_inflate
;
509 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to update inflate stream: %s", zError(status
));
513 static STATUS
dechunk_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
516 struct dechunk_ctx
*ctx
= s
->ctx
;
517 TSRMLS_FETCH_FROM_CTX(s
->ts
);
522 if (PHP_HTTP_BUFFER_NOMEM
== php_http_buffer_append(&ctx
->buffer
, data
, data_len
)) {
525 if (!php_http_buffer_fix(&ctx
->buffer
)) {
532 php_http_buffer_init(&tmp
);
534 /* we have data in our buffer */
535 while (PHP_HTTP_BUFFER_LEN(&ctx
->buffer
)) {
537 /* we already know the size of the chunk and are waiting for data */
540 /* not enough data buffered */
541 if (PHP_HTTP_BUFFER_LEN(&ctx
->buffer
) < ctx
->hexlen
) {
544 if (s
->flags
& PHP_HTTP_ENCODING_STREAM_FLUSH_FULL
) {
545 /* flush all data (should only be chunk data) */
546 php_http_buffer_append(&tmp
, PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), PHP_HTTP_BUFFER_LEN(&ctx
->buffer
));
547 /* waiting for less data now */
548 ctx
->hexlen
-= PHP_HTTP_BUFFER_LEN(&ctx
->buffer
);
549 /* no more buffered data */
550 php_http_buffer_reset(&ctx
->buffer
);
554 /* we have too less data and don't need to flush */
560 /* we seem to have all data of the chunk */
562 php_http_buffer_append(&tmp
, PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), ctx
->hexlen
);
563 /* remove outgoing data from the buffer */
564 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, ctx
->hexlen
);
571 /* we don't know the length of the chunk yet */
575 /* ignore preceeding CRLFs (too loose?) */
576 while (off
< PHP_HTTP_BUFFER_LEN(&ctx
->buffer
) && (
577 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\n' ||
578 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\r')) {
582 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, off
);
585 /* still data there? */
586 if (PHP_HTTP_BUFFER_LEN(&ctx
->buffer
)) {
590 /* we need eol, so we can be sure we have all hex digits */
591 php_http_buffer_fix(&ctx
->buffer
);
592 if ((eolstr
= php_http_locate_bin_eol(PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), PHP_HTTP_BUFFER_LEN(&ctx
->buffer
), &eollen
))) {
595 /* read in chunk size */
596 ctx
->hexlen
= strtoul(PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), &stop
, 16);
598 /* if strtoul() stops at the beginning of the buffered data
599 there's domething oddly wrong, i.e. bad input */
600 if (stop
== PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)) {
601 php_http_buffer_dtor(&tmp
);
605 /* cut out <chunk size hex><chunk extension><eol> */
606 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, eolstr
+ eollen
- PHP_HTTP_BUFFER_VAL(&ctx
->buffer
));
607 /* buffer->hexlen is 0 now or contains the size of the next chunk */
611 /* ignore following CRLFs (too loose?) */
612 while (off
< PHP_HTTP_BUFFER_LEN(&ctx
->buffer
) && (
613 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\n' ||
614 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\r')) {
618 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, off
);
626 /* we have not enough data buffered to read in chunk size */
634 php_http_buffer_fix(&tmp
);
635 *decoded
= PHP_HTTP_BUFFER_VAL(&tmp
);
636 *decoded_len
= PHP_HTTP_BUFFER_LEN(&tmp
);
641 static STATUS
deflate_flush(php_http_encoding_stream_t
*s
, char **encoded
, size_t *encoded_len
)
644 z_streamp ctx
= s
->ctx
;
645 TSRMLS_FETCH_FROM_CTX(s
->ts
);
647 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
;
648 *encoded
= emalloc(*encoded_len
);
652 ctx
->avail_out
= *encoded_len
;
653 ctx
->next_out
= (Bytef
*) *encoded
;
655 switch (status
= deflate(ctx
, Z_FULL_FLUSH
)) {
658 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
- ctx
->avail_out
;
659 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
660 (*encoded
)[*encoded_len
] = '\0';
664 STR_SET(*encoded
, NULL
);
666 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to flush deflate stream: %s", zError(status
));
670 static STATUS
dechunk_flush(php_http_encoding_stream_t
*s
, char **decoded
, size_t *decoded_len
)
672 struct dechunk_ctx
*ctx
= s
->ctx
;
675 /* flush all data (should only be chunk data) */
676 php_http_buffer_fix(&ctx
->buffer
);
677 php_http_buffer_data(&ctx
->buffer
, decoded
, decoded_len
);
678 /* waiting for less data now */
679 ctx
->hexlen
-= PHP_HTTP_BUFFER_LEN(&ctx
->buffer
);
680 /* no more buffered data */
681 php_http_buffer_reset(&ctx
->buffer
);
690 static STATUS
deflate_finish(php_http_encoding_stream_t
*s
, char **encoded
, size_t *encoded_len
)
693 z_streamp ctx
= s
->ctx
;
694 TSRMLS_FETCH_FROM_CTX(s
->ts
);
696 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
;
697 *encoded
= emalloc(*encoded_len
);
699 /* deflate remaining input */
700 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
701 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
703 ctx
->avail_out
= *encoded_len
;
704 ctx
->next_out
= (Bytef
*) *encoded
;
707 status
= deflate(ctx
, Z_FINISH
);
708 } while (Z_OK
== status
);
710 if (Z_STREAM_END
== status
) {
711 /* cut processed intp off */
712 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
715 *encoded_len
-= ctx
->avail_out
;
716 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
717 (*encoded
)[*encoded_len
] = '\0';
721 STR_SET(*encoded
, NULL
);
723 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to finish deflate stream: %s", zError(status
));
727 static STATUS
inflate_finish(php_http_encoding_stream_t
*s
, char **decoded
, size_t *decoded_len
)
730 z_streamp ctx
= s
->ctx
;
731 TSRMLS_FETCH_FROM_CTX(s
->ts
);
733 if (!PHP_HTTP_BUFFER_LEN(ctx
->opaque
)) {
739 *decoded_len
= (PHP_HTTP_BUFFER_LEN(ctx
->opaque
) + 1) * PHP_HTTP_INFLATE_ROUNDS
;
740 *decoded
= emalloc(*decoded_len
);
742 /* inflate remaining input */
743 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
744 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
746 ctx
->avail_out
= *decoded_len
;
747 ctx
->next_out
= (Bytef
*) *decoded
;
749 if (Z_STREAM_END
== (status
= inflate(ctx
, Z_FINISH
))) {
750 /* cut processed input off */
751 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
754 *decoded_len
-= ctx
->avail_out
;
755 *decoded
= erealloc(*decoded
, *decoded_len
+ 1);
756 (*decoded
)[*decoded_len
] = '\0';
760 STR_SET(*decoded
, NULL
);
762 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to finish inflate stream: %s", zError(status
));
766 static zend_bool
deflate_done(php_http_encoding_stream_t
*s
)
768 z_streamp ctx
= s
->ctx
;
769 return !ctx
->avail_in
&& !PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
772 static zend_bool
inflate_done(php_http_encoding_stream_t
*s
)
774 z_streamp ctx
= s
->ctx
;
775 return !ctx
->avail_in
&& !PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
778 static zend_bool
dechunk_done(php_http_encoding_stream_t
*s
)
780 return ((struct dechunk_ctx
*) s
->ctx
)->zeroed
;
783 static void deflate_dtor(php_http_encoding_stream_t
*s
)
786 z_streamp ctx
= s
->ctx
;
789 php_http_buffer_free((php_http_buffer
**) &ctx
->opaque
);
792 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
797 static void inflate_dtor(php_http_encoding_stream_t
*s
)
800 z_streamp ctx
= s
->ctx
;
803 php_http_buffer_free((php_http_buffer
**) &ctx
->opaque
);
806 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
811 static void dechunk_dtor(php_http_encoding_stream_t
*s
)
814 struct dechunk_ctx
*ctx
= s
->ctx
;
816 php_http_buffer_dtor(&ctx
->buffer
);
817 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
822 static php_http_encoding_stream_ops_t php_http_encoding_deflate_ops
= {
832 PHP_HTTP_API php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_deflate_ops(void)
834 return &php_http_encoding_deflate_ops
;
837 static php_http_encoding_stream_ops_t php_http_encoding_inflate_ops
= {
847 PHP_HTTP_API php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_inflate_ops(void)
849 return &php_http_encoding_inflate_ops
;
852 static php_http_encoding_stream_ops_t php_http_encoding_dechunk_ops
= {
862 PHP_HTTP_API php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_dechunk_ops(void)
864 return &php_http_encoding_dechunk_ops
;
867 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpEncodingStream, method, 0, req_args)
868 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpEncodingStream, method, 0)
869 #define PHP_HTTP_ENCSTREAM_ME(method, visibility) PHP_ME(HttpEncodingStream, method, PHP_HTTP_ARGS(HttpEncodingStream, method), visibility)
871 PHP_HTTP_BEGIN_ARGS(__construct
, 0)
872 PHP_HTTP_ARG_VAL(flags
, 0)
875 PHP_HTTP_BEGIN_ARGS(update
, 1)
876 PHP_HTTP_ARG_VAL(data
, 0)
879 PHP_HTTP_EMPTY_ARGS(flush
);
880 PHP_HTTP_EMPTY_ARGS(done
);
881 PHP_HTTP_EMPTY_ARGS(finish
);
883 zend_class_entry
*php_http_encoding_stream_class_entry
;
884 zend_function_entry php_http_encoding_stream_method_entry
[] = {
885 PHP_HTTP_ENCSTREAM_ME(__construct
, ZEND_ACC_PUBLIC
|ZEND_ACC_CTOR
)
886 PHP_HTTP_ENCSTREAM_ME(update
, ZEND_ACC_PUBLIC
)
887 PHP_HTTP_ENCSTREAM_ME(flush
, ZEND_ACC_PUBLIC
)
888 PHP_HTTP_ENCSTREAM_ME(done
, ZEND_ACC_PUBLIC
)
889 PHP_HTTP_ENCSTREAM_ME(finish
, ZEND_ACC_PUBLIC
)
893 static zend_object_handlers php_http_encoding_stream_object_handlers
;
895 zend_object_value
php_http_encoding_stream_object_new(zend_class_entry
*ce TSRMLS_DC
)
897 return php_http_encoding_stream_object_new_ex(ce
, NULL
, NULL TSRMLS_CC
);
900 zend_object_value
php_http_encoding_stream_object_new_ex(zend_class_entry
*ce
, php_http_encoding_stream_t
*s
, php_http_encoding_stream_object_t
**ptr TSRMLS_DC
)
902 zend_object_value ov
;
903 php_http_encoding_stream_object_t
*o
;
905 o
= ecalloc(1, sizeof(*o
));
906 zend_object_std_init((zend_object
*) o
, ce TSRMLS_CC
);
907 object_properties_init((zend_object
*) o
, ce
);
917 ov
.handle
= zend_objects_store_put((zend_object
*) o
, NULL
, php_http_encoding_stream_object_free
, NULL TSRMLS_CC
);
918 ov
.handlers
= &php_http_encoding_stream_object_handlers
;
923 zend_object_value
php_http_encoding_stream_object_clone(zval
*this_ptr TSRMLS_DC
)
925 zend_object_value new_ov
;
926 php_http_encoding_stream_object_t
*new_obj
= NULL
, *old_obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
928 new_ov
= php_http_encoding_stream_object_new_ex(old_obj
->zo
.ce
, php_http_encoding_stream_copy(old_obj
->stream
, NULL
), &new_obj TSRMLS_CC
);
929 zend_objects_clone_members(&new_obj
->zo
, new_ov
, &old_obj
->zo
, Z_OBJ_HANDLE_P(this_ptr
) TSRMLS_CC
);
934 void php_http_encoding_stream_object_free(void *object TSRMLS_DC
)
936 php_http_encoding_stream_object_t
*o
= (php_http_encoding_stream_object_t
*) object
;
939 php_http_encoding_stream_free(&o
->stream TSRMLS_CC
);
941 zend_object_std_dtor((zend_object
*) o TSRMLS_CC
);
945 PHP_METHOD(HttpEncodingStream
, __construct
)
947 with_error_handling(EH_THROW
, PHP_HTTP_EX_CE(runtime
)) {
950 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "|l", &flags
)) {
951 with_error_handling(EH_THROW
, PHP_HTTP_EX_CE(encoding
)) {
952 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
955 php_http_encoding_stream_ops_t
*ops
= NULL
;
957 if (instanceof_function(obj
->zo
.ce
, php_http_deflate_stream_class_entry TSRMLS_CC
)) {
958 ops
= &php_http_encoding_deflate_ops
;
959 } else if (instanceof_function(obj
->zo
.ce
, php_http_inflate_stream_class_entry TSRMLS_CC
)) {
960 ops
= &php_http_encoding_inflate_ops
;
961 } else if (instanceof_function(obj
->zo
.ce
, php_http_dechunk_stream_class_entry TSRMLS_CC
)) {
962 ops
= &php_http_encoding_dechunk_ops
;
966 obj
->stream
= php_http_encoding_stream_init(obj
->stream
, ops
, flags TSRMLS_CC
);
968 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Unknown HttpEncodingStream class %s", obj
->zo
.ce
->name
);
972 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "HttpEncodingStream cannot be initialized twice");
974 } end_error_handling();
976 } end_error_handling();
979 PHP_METHOD(HttpEncodingStream
, update
)
984 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s", &data_str
, &data_len
)) {
985 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
991 if (SUCCESS
== php_http_encoding_stream_update(obj
->stream
, data_str
, data_len
, &encoded_str
, &encoded_len TSRMLS_CC
)) {
992 RETURN_STRINGL(encoded_str
, encoded_len
, 0);
999 PHP_METHOD(HttpEncodingStream
, flush
)
1001 if (SUCCESS
== zend_parse_parameters_none()) {
1002 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
1008 if (SUCCESS
== php_http_encoding_stream_flush(obj
->stream
, &encoded_str
, &encoded_len TSRMLS_CC
)) {
1009 RETURN_STRINGL(encoded_str
, encoded_len
, 0);
1016 PHP_METHOD(HttpEncodingStream
, done
)
1018 if (SUCCESS
== zend_parse_parameters_none()) {
1019 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
1022 RETURN_BOOL(php_http_encoding_stream_done(obj
->stream
));
1028 PHP_METHOD(HttpEncodingStream
, finish
)
1030 if (SUCCESS
== zend_parse_parameters_none()) {
1031 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
1037 if (SUCCESS
== php_http_encoding_stream_finish(obj
->stream
, &encoded_str
, &encoded_len TSRMLS_CC
)) {
1038 if (SUCCESS
== php_http_encoding_stream_reset(&obj
->stream
)) {
1039 RETURN_STRINGL(encoded_str
, encoded_len
, 0);
1041 STR_FREE(encoded_str
);
1049 #undef PHP_HTTP_BEGIN_ARGS
1050 #undef PHP_HTTP_EMPTY_ARGS
1051 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpDeflateStream, method, 0, req_args)
1052 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpDeflateStream, method, 0)
1053 #define PHP_HTTP_DEFLATE_ME(method, visibility) PHP_ME(HttpDeflateStream, method, PHP_HTTP_ARGS(HttpDeflateStream, method), visibility)
1055 PHP_HTTP_BEGIN_ARGS(encode
, 1)
1056 PHP_HTTP_ARG_VAL(data
, 0)
1057 PHP_HTTP_ARG_VAL(flags
, 0)
1060 zend_class_entry
*php_http_deflate_stream_class_entry
;
1061 zend_function_entry php_http_deflate_stream_method_entry
[] = {
1062 PHP_HTTP_DEFLATE_ME(encode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1064 EMPTY_FUNCTION_ENTRY
1067 PHP_METHOD(HttpDeflateStream
, encode
)
1073 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s|l", &str
, &len
, &flags
)) {
1077 if (SUCCESS
== php_http_encoding_deflate(flags
, str
, len
, &enc_str
, &enc_len TSRMLS_CC
)) {
1078 RETURN_STRINGL(enc_str
, enc_len
, 0);
1084 #undef PHP_HTTP_BEGIN_ARGS
1085 #undef PHP_HTTP_EMPTY_ARGS
1086 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpInflateStream, method, 0, req_args)
1087 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpInflateStream, method, 0)
1088 #define PHP_HTTP_INFLATE_ME(method, visibility) PHP_ME(HttpInflateStream, method, PHP_HTTP_ARGS(HttpInflateStream, method), visibility)
1090 PHP_HTTP_BEGIN_ARGS(decode
, 1)
1091 PHP_HTTP_ARG_VAL(data
, 0)
1094 zend_class_entry
*php_http_inflate_stream_class_entry
;
1095 zend_function_entry php_http_inflate_stream_method_entry
[] = {
1096 PHP_HTTP_INFLATE_ME(decode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1098 EMPTY_FUNCTION_ENTRY
1101 PHP_METHOD(HttpInflateStream
, decode
)
1106 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s", &str
, &len
)) {
1110 if (SUCCESS
== php_http_encoding_inflate(str
, len
, &enc_str
, &enc_len TSRMLS_CC
)) {
1111 RETURN_STRINGL(enc_str
, enc_len
, 0);
1117 #undef PHP_HTTP_BEGIN_ARGS
1118 #undef PHP_HTTP_EMPTY_ARGS
1119 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpDechunkStream, method, 0, req_args)
1120 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpDechunkStream, method, 0)
1121 #define PHP_HTTP_DECHUNK_ME(method, visibility) PHP_ME(HttpDechunkStream, method, PHP_HTTP_ARGS(HttpDechunkStream, method), visibility)
1123 PHP_HTTP_BEGIN_ARGS(decode
, 1)
1124 PHP_HTTP_ARG_VAL(data
, 0)
1125 PHP_HTTP_ARG_VAL(decoded_len
, 1)
1128 zend_class_entry
*php_http_dechunk_stream_class_entry
;
1129 zend_function_entry php_http_dechunk_stream_method_entry
[] = {
1130 PHP_HTTP_DECHUNK_ME(decode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1132 EMPTY_FUNCTION_ENTRY
1135 PHP_METHOD(HttpDechunkStream
, decode
)
1141 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s|z!", &str
, &len
, &zlen
)) {
1142 const char *end_ptr
;
1146 if ((end_ptr
= php_http_encoding_dechunk(str
, len
, &enc_str
, &enc_len TSRMLS_CC
))) {
1149 ZVAL_LONG(zlen
, str
+ len
- end_ptr
);
1151 RETURN_STRINGL(enc_str
, enc_len
, 0);
1157 PHP_MINIT_FUNCTION(http_encoding
)
1159 PHP_HTTP_REGISTER_CLASS(http
\\encoding
, Stream
, http_encoding_stream
, php_http_object_class_entry
, ZEND_ACC_EXPLICIT_ABSTRACT_CLASS
);
1160 php_http_encoding_stream_class_entry
->create_object
= php_http_encoding_stream_object_new
;
1161 memcpy(&php_http_encoding_stream_object_handlers
, zend_get_std_object_handlers(), sizeof(zend_object_handlers
));
1162 php_http_encoding_stream_object_handlers
.clone_obj
= php_http_encoding_stream_object_clone
;
1164 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_NONE"), PHP_HTTP_ENCODING_STREAM_FLUSH_NONE TSRMLS_CC
);
1165 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_SYNC"), PHP_HTTP_ENCODING_STREAM_FLUSH_SYNC TSRMLS_CC
);
1166 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_FULL"), PHP_HTTP_ENCODING_STREAM_FLUSH_FULL TSRMLS_CC
);
1168 PHP_HTTP_REGISTER_CLASS(http
\\encoding
\\stream
, Deflate
, http_deflate_stream
, php_http_encoding_stream_class_entry
, 0);
1170 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_GZIP"), PHP_HTTP_DEFLATE_TYPE_GZIP TSRMLS_CC
);
1171 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_ZLIB"), PHP_HTTP_DEFLATE_TYPE_ZLIB TSRMLS_CC
);
1172 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_RAW"), PHP_HTTP_DEFLATE_TYPE_RAW TSRMLS_CC
);
1173 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_DEF"), PHP_HTTP_DEFLATE_LEVEL_DEF TSRMLS_CC
);
1174 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_MIN"), PHP_HTTP_DEFLATE_LEVEL_MIN TSRMLS_CC
);
1175 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_MAX"), PHP_HTTP_DEFLATE_LEVEL_MAX TSRMLS_CC
);
1176 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_DEF"), PHP_HTTP_DEFLATE_STRATEGY_DEF TSRMLS_CC
);
1177 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_FILT"), PHP_HTTP_DEFLATE_STRATEGY_FILT TSRMLS_CC
);
1178 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_HUFF"), PHP_HTTP_DEFLATE_STRATEGY_HUFF TSRMLS_CC
);
1179 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_RLE"), PHP_HTTP_DEFLATE_STRATEGY_RLE TSRMLS_CC
);
1180 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_FIXED"), PHP_HTTP_DEFLATE_STRATEGY_FIXED TSRMLS_CC
);
1182 PHP_HTTP_REGISTER_CLASS(http
\\encoding
\\stream
, Inflate
, http_inflate_stream
, php_http_encoding_stream_class_entry
, 0);
1183 PHP_HTTP_REGISTER_CLASS(http
\\encoding
\\stream
, Dechunk
, http_dechunk_stream
, php_http_encoding_stream_class_entry
, 0);
1194 * vim600: noet sw=4 ts=4 fdm=marker
1195 * vim<600: noet sw=4 ts=4