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 $ */
19 static inline int eol_match(char **line
, int *eol_len
)
23 while (' ' == *ptr
) ++ptr
;
25 if (ptr
== php_http_locate_eol(*line
, eol_len
)) {
33 PHP_HTTP_API
const char *php_http_encoding_dechunk(const char *encoded
, size_t encoded_len
, char **decoded
, size_t *decoded_len TSRMLS_DC
)
37 const char *e_ptr
= encoded
;
40 *decoded
= ecalloc(1, encoded_len
);
42 while ((encoded
+ encoded_len
- e_ptr
) > 0) {
43 ulong chunk_len
= 0, rest
;
45 chunk_len
= strtoul(e_ptr
, &n_ptr
, 16);
47 /* we could not read in chunk size */
50 * if this is the first turn and there doesn't seem to be a chunk
51 * size at the begining of the body, do not fail on apparently
52 * not encoded data and return a copy
54 if (e_ptr
== encoded
) {
55 php_http_error(HE_NOTICE
, PHP_HTTP_E_ENCODING
, "Data does not seem to be chunked encoded");
56 memcpy(*decoded
, encoded
, encoded_len
);
57 *decoded_len
= encoded_len
;
58 return encoded
+ encoded_len
;
61 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
);
68 /* move over '0' chunked encoding terminator and any new lines */
81 /* there should be CRLF after the chunk size, but we'll ignore SP+ too */
82 if (*n_ptr
&& !eol_match(&n_ptr
, &eol_len
)) {
84 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));
86 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
);
91 /* chunk size pretends more data than we actually got, so it's probably a truncated message */
92 if (chunk_len
> (rest
= encoded
+ encoded_len
- n_ptr
)) {
93 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
);
98 memcpy(*decoded
+ *decoded_len
, n_ptr
, chunk_len
);
99 *decoded_len
+= chunk_len
;
101 if (chunk_len
== rest
) {
102 e_ptr
= n_ptr
+ chunk_len
;
105 /* advance to next chunk */
106 e_ptr
= n_ptr
+ chunk_len
+ eol_len
;
113 static inline int php_http_inflate_rounds(z_stream
*Z
, int flush
, char **buf
, size_t *len
)
115 int status
= 0, round
= 0;
116 php_http_buffer_t buffer
;
121 php_http_buffer_init_ex(&buffer
, Z
->avail_in
, PHP_HTTP_BUFFER_INIT_PREALLOC
);
124 if (PHP_HTTP_BUFFER_NOMEM
== php_http_buffer_resize_ex(&buffer
, buffer
.size
, 0, 1)) {
125 status
= Z_MEM_ERROR
;
127 Z
->avail_out
= buffer
.free
;
128 Z
->next_out
= (Bytef
*) buffer
.data
+ buffer
.used
;
130 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
);
132 status
= inflate(Z
, flush
);
134 buffer
.used
+= buffer
.free
- Z
->avail_out
;
135 buffer
.free
= Z
->avail_out
;
137 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
);
139 PHP_HTTP_INFLATE_BUFFER_SIZE_ALIGN(buffer
.size
);
141 } while ((Z_BUF_ERROR
== status
|| (Z_OK
== status
&& Z
->avail_in
)) && ++round
< PHP_HTTP_INFLATE_ROUNDS
);
143 if (status
== Z_OK
|| status
== Z_STREAM_END
) {
144 php_http_buffer_shrink(&buffer
);
145 php_http_buffer_fix(&buffer
);
149 php_http_buffer_dtor(&buffer
);
155 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
)
157 int status
, level
, wbits
, strategy
;
160 PHP_HTTP_DEFLATE_LEVEL_SET(flags
, level
);
161 PHP_HTTP_DEFLATE_WBITS_SET(flags
, wbits
);
162 PHP_HTTP_DEFLATE_STRATEGY_SET(flags
, strategy
);
164 memset(&Z
, 0, sizeof(z_stream
));
168 status
= deflateInit2(&Z
, level
, Z_DEFLATED
, wbits
, MAX_MEM_LEVEL
, strategy
);
169 if (Z_OK
== status
) {
170 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len
);
171 *encoded
= emalloc(*encoded_len
);
173 Z
.next_in
= (Bytef
*) data
;
174 Z
.next_out
= (Bytef
*) *encoded
;
175 Z
.avail_in
= data_len
;
176 Z
.avail_out
= *encoded_len
;
178 status
= deflate(&Z
, Z_FINISH
);
181 if (Z_STREAM_END
== status
) {
182 /* size buffer down to actual length */
183 *encoded
= erealloc(*encoded
, Z
.total_out
+ 1);
184 (*encoded
)[*encoded_len
= Z
.total_out
] = '\0';
187 STR_SET(*encoded
, NULL
);
192 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Could not deflate data: %s", zError(status
));
196 PHP_HTTP_API STATUS
php_http_encoding_inflate(const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len TSRMLS_DC
)
199 int status
, wbits
= PHP_HTTP_WINDOW_BITS_ANY
;
201 memset(&Z
, 0, sizeof(z_stream
));
204 status
= inflateInit2(&Z
, wbits
);
205 if (Z_OK
== status
) {
206 Z
.next_in
= (Bytef
*) data
;
207 Z
.avail_in
= data_len
;
209 switch (status
= php_http_inflate_rounds(&Z
, Z_NO_FLUSH
, decoded
, decoded_len
)) {
215 status
= Z_DATA_ERROR
;
219 /* raw deflated data? */
220 if (PHP_HTTP_WINDOW_BITS_ANY
== wbits
) {
222 wbits
= PHP_HTTP_WINDOW_BITS_RAW
;
223 goto retry_raw_inflate
;
229 if (decoded_len
&& *decoded
) {
234 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Could not inflate data: %s", zError(status
));
238 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
)
243 s
= pemalloc(sizeof(*s
), (flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
245 memset(s
, 0, sizeof(*s
));
248 TSRMLS_SET_CTX(s
->ts
);
250 if ((s
->ops
= ops
)) {
251 php_http_encoding_stream_t
*ss
= s
->ops
->init(s
);
261 pefree(s
, (flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
266 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
)
268 TSRMLS_FETCH_FROM_CTX(from
->ts
);
270 if (!from
->ops
->copy
) {
274 return from
->ops
->copy(from
, php_http_encoding_stream_init(to
, from
->ops
, from
->flags TSRMLS_CC
));
277 PHP_HTTP_API STATUS
php_http_encoding_stream_reset(php_http_encoding_stream_t
**s
)
279 php_http_encoding_stream_t
*ss
;
280 if ((*s
)->ops
->dtor
) {
283 if ((ss
= (*s
)->ops
->init(*s
))) {
290 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
)
292 if (!s
->ops
->update
) {
295 return s
->ops
->update(s
, in_str
, in_len
, out_str
, out_len
);
298 PHP_HTTP_API STATUS
php_http_encoding_stream_flush(php_http_encoding_stream_t
*s
, char **out_str
, size_t *out_len
)
300 if (!s
->ops
->flush
) {
305 return s
->ops
->flush(s
, out_str
, out_len
);
308 PHP_HTTP_API zend_bool
php_http_encoding_stream_done(php_http_encoding_stream_t
*s
)
313 return s
->ops
->done(s
);
316 PHP_HTTP_API STATUS
php_http_encoding_stream_finish(php_http_encoding_stream_t
*s
, char **out_str
, size_t *out_len
)
318 if (!s
->ops
->finish
) {
323 return s
->ops
->finish(s
, out_str
, out_len
);
326 PHP_HTTP_API
void php_http_encoding_stream_dtor(php_http_encoding_stream_t
*s
)
333 PHP_HTTP_API
void php_http_encoding_stream_free(php_http_encoding_stream_t
**s
)
336 if ((*s
)->ops
->dtor
) {
339 pefree(*s
, ((*s
)->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
345 php_http_buffer_t buffer
;
350 static php_http_encoding_stream_t
*deflate_init(php_http_encoding_stream_t
*s
)
352 int status
, level
, wbits
, strategy
, p
= (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
);
353 z_streamp ctx
= pecalloc(1, sizeof(z_stream
), p
);
354 TSRMLS_FETCH_FROM_CTX(s
->ts
);
356 PHP_HTTP_DEFLATE_LEVEL_SET(s
->flags
, level
);
357 PHP_HTTP_DEFLATE_WBITS_SET(s
->flags
, wbits
);
358 PHP_HTTP_DEFLATE_STRATEGY_SET(s
->flags
, strategy
);
360 if (Z_OK
== (status
= deflateInit2(ctx
, level
, Z_DEFLATED
, wbits
, MAX_MEM_LEVEL
, strategy
))) {
361 if ((ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
366 status
= Z_MEM_ERROR
;
369 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to initialize deflate encoding stream: %s", zError(status
));
373 static php_http_encoding_stream_t
*inflate_init(php_http_encoding_stream_t
*s
)
375 int status
, wbits
, p
= (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
);
376 z_streamp ctx
= pecalloc(1, sizeof(z_stream
), p
);
377 TSRMLS_FETCH_FROM_CTX(s
->ts
);
379 PHP_HTTP_INFLATE_WBITS_SET(s
->flags
, wbits
);
381 if (Z_OK
== (status
= inflateInit2(ctx
, wbits
))) {
382 if ((ctx
->opaque
= php_http_buffer_init_ex(NULL
, PHP_HTTP_DEFLATE_BUFFER_SIZE
, p
? PHP_HTTP_BUFFER_INIT_PERSISTENT
: 0))) {
387 status
= Z_MEM_ERROR
;
390 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to initialize inflate stream: %s", zError(status
));
394 static php_http_encoding_stream_t
*dechunk_init(php_http_encoding_stream_t
*s
)
396 struct dechunk_ctx
*ctx
= pecalloc(1, sizeof(*ctx
), (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
398 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)) {
409 static php_http_encoding_stream_t
*deflate_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
411 z_streamp from_ctx
= from
->ctx
, to_ctx
= to
->ctx
;
413 deflateCopy(to_ctx
, from_ctx
);
414 php_http_buffer_append(to_ctx
->opaque
, PHP_HTTP_BUFFER_VAL(from_ctx
->opaque
), PHP_HTTP_BUFFER_LEN(from_ctx
->opaque
));
419 static php_http_encoding_stream_t
*inflate_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
421 z_streamp from_ctx
= from
->ctx
, to_ctx
= to
->ctx
;
423 inflateCopy(to_ctx
, from_ctx
);
424 php_http_buffer_append(to_ctx
->opaque
, PHP_HTTP_BUFFER_VAL(from_ctx
->opaque
), PHP_HTTP_BUFFER_LEN(from_ctx
->opaque
));
429 static php_http_encoding_stream_t
*dechunk_copy(php_http_encoding_stream_t
*from
, php_http_encoding_stream_t
*to
)
431 struct dechunk_ctx
*from_ctx
= from
->ctx
, *to_ctx
= to
->ctx
;
433 to_ctx
->hexlen
= from_ctx
->hexlen
;
434 to_ctx
->zeroed
= from_ctx
->zeroed
;
435 php_http_buffer_append(&to_ctx
->buffer
, PHP_HTTP_BUFFER_VAL(&from_ctx
->buffer
), PHP_HTTP_BUFFER_LEN(&from_ctx
->buffer
));
440 static STATUS
deflate_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **encoded
, size_t *encoded_len
)
443 z_streamp ctx
= s
->ctx
;
444 TSRMLS_FETCH_FROM_CTX(s
->ts
);
446 /* append input to our buffer */
447 php_http_buffer_append(PHP_HTTP_BUFFER(ctx
->opaque
), data
, data_len
);
449 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
450 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
453 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len
);
454 *encoded
= emalloc(*encoded_len
);
455 ctx
->avail_out
= *encoded_len
;
456 ctx
->next_out
= (Bytef
*) *encoded
;
458 switch (status
= deflate(ctx
, PHP_HTTP_ENCODING_STREAM_FLUSH_FLAG(s
->flags
))) {
461 /* cut processed chunk off the buffer */
463 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
465 php_http_buffer_reset(PHP_HTTP_BUFFER(ctx
->opaque
));
468 /* size buffer down to actual size */
469 *encoded_len
-= ctx
->avail_out
;
470 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
471 (*encoded
)[*encoded_len
] = '\0';
475 STR_SET(*encoded
, NULL
);
477 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to update deflate stream: %s", zError(status
));
481 static STATUS
inflate_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
484 z_streamp ctx
= s
->ctx
;
485 TSRMLS_FETCH_FROM_CTX(s
->ts
);
487 /* append input to buffer */
488 php_http_buffer_append(PHP_HTTP_BUFFER(ctx
->opaque
), data
, data_len
);
491 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
492 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
494 switch (status
= php_http_inflate_rounds(ctx
, PHP_HTTP_ENCODING_STREAM_FLUSH_FLAG(s
->flags
), decoded
, decoded_len
)) {
499 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
501 php_http_buffer_reset(PHP_HTTP_BUFFER(ctx
->opaque
));
506 /* raw deflated data ? */
507 if (!(s
->flags
& PHP_HTTP_INFLATE_TYPE_RAW
) && !ctx
->total_out
) {
509 s
->flags
|= PHP_HTTP_INFLATE_TYPE_RAW
;
510 inflateInit2(ctx
, PHP_HTTP_WINDOW_BITS_RAW
);
511 goto retry_raw_inflate
;
516 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to update inflate stream: %s", zError(status
));
520 static STATUS
dechunk_update(php_http_encoding_stream_t
*s
, const char *data
, size_t data_len
, char **decoded
, size_t *decoded_len
)
522 php_http_buffer_t tmp
;
523 struct dechunk_ctx
*ctx
= s
->ctx
;
524 TSRMLS_FETCH_FROM_CTX(s
->ts
);
527 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Dechunk encoding stream has already reached the end of chunked input");
530 if ((PHP_HTTP_BUFFER_NOMEM
== php_http_buffer_append(&ctx
->buffer
, data
, data_len
)) || !php_http_buffer_fix(&ctx
->buffer
)) {
538 php_http_buffer_init(&tmp
);
540 /* we have data in our buffer */
541 while (PHP_HTTP_BUFFER_LEN(&ctx
->buffer
)) {
543 /* we already know the size of the chunk and are waiting for data */
546 /* not enough data buffered */
547 if (PHP_HTTP_BUFFER_LEN(&ctx
->buffer
) < ctx
->hexlen
) {
550 if (s
->flags
& PHP_HTTP_ENCODING_STREAM_FLUSH_FULL
) {
551 /* flush all data (should only be chunk data) */
552 php_http_buffer_append(&tmp
, PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), PHP_HTTP_BUFFER_LEN(&ctx
->buffer
));
553 /* waiting for less data now */
554 ctx
->hexlen
-= PHP_HTTP_BUFFER_LEN(&ctx
->buffer
);
555 /* no more buffered data */
556 php_http_buffer_reset(&ctx
->buffer
);
560 /* we have too less data and don't need to flush */
566 /* we seem to have all data of the chunk */
568 php_http_buffer_append(&tmp
, PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), ctx
->hexlen
);
569 /* remove outgoing data from the buffer */
570 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, ctx
->hexlen
);
577 /* we don't know the length of the chunk yet */
581 /* ignore preceeding CRLFs (too loose?) */
582 while (off
< PHP_HTTP_BUFFER_LEN(&ctx
->buffer
) && (
583 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\n' ||
584 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\r')) {
588 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, off
);
591 /* still data there? */
592 if (PHP_HTTP_BUFFER_LEN(&ctx
->buffer
)) {
596 /* we need eol, so we can be sure we have all hex digits */
597 php_http_buffer_fix(&ctx
->buffer
);
598 if ((eolstr
= php_http_locate_bin_eol(PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), PHP_HTTP_BUFFER_LEN(&ctx
->buffer
), &eollen
))) {
601 /* read in chunk size */
602 ctx
->hexlen
= strtoul(PHP_HTTP_BUFFER_VAL(&ctx
->buffer
), &stop
, 16);
604 /* if strtoul() stops at the beginning of the buffered data
605 there's domething oddly wrong, i.e. bad input */
606 if (stop
== PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)) {
607 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to parse chunk len from '%.*s'", MIN(16, ctx
->buffer
.used
), ctx
->buffer
.data
);
608 php_http_buffer_dtor(&tmp
);
612 /* cut out <chunk size hex><chunk extension><eol> */
613 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, eolstr
+ eollen
- PHP_HTTP_BUFFER_VAL(&ctx
->buffer
));
614 /* buffer->hexlen is 0 now or contains the size of the next chunk */
618 /* ignore following CRLFs (too loose?) */
619 while (off
< PHP_HTTP_BUFFER_LEN(&ctx
->buffer
) && (
620 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\n' ||
621 PHP_HTTP_BUFFER_VAL(&ctx
->buffer
)[off
] == '\r')) {
625 php_http_buffer_cut(PHP_HTTP_BUFFER(&ctx
->buffer
), 0, off
);
633 /* we have not enough data buffered to read in chunk size */
641 php_http_buffer_fix(&tmp
);
642 *decoded
= PHP_HTTP_BUFFER_VAL(&tmp
);
643 *decoded_len
= PHP_HTTP_BUFFER_LEN(&tmp
);
648 static STATUS
deflate_flush(php_http_encoding_stream_t
*s
, char **encoded
, size_t *encoded_len
)
651 z_streamp ctx
= s
->ctx
;
652 TSRMLS_FETCH_FROM_CTX(s
->ts
);
654 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
;
655 *encoded
= emalloc(*encoded_len
);
659 ctx
->avail_out
= *encoded_len
;
660 ctx
->next_out
= (Bytef
*) *encoded
;
662 switch (status
= deflate(ctx
, Z_FULL_FLUSH
)) {
665 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
- ctx
->avail_out
;
666 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
667 (*encoded
)[*encoded_len
] = '\0';
671 STR_SET(*encoded
, NULL
);
673 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to flush deflate stream: %s", zError(status
));
677 static STATUS
dechunk_flush(php_http_encoding_stream_t
*s
, char **decoded
, size_t *decoded_len
)
679 struct dechunk_ctx
*ctx
= s
->ctx
;
682 /* flush all data (should only be chunk data) */
683 php_http_buffer_fix(&ctx
->buffer
);
684 php_http_buffer_data(&ctx
->buffer
, decoded
, decoded_len
);
685 /* waiting for less data now */
686 ctx
->hexlen
-= PHP_HTTP_BUFFER_LEN(&ctx
->buffer
);
687 /* no more buffered data */
688 php_http_buffer_reset(&ctx
->buffer
);
697 static STATUS
deflate_finish(php_http_encoding_stream_t
*s
, char **encoded
, size_t *encoded_len
)
700 z_streamp ctx
= s
->ctx
;
701 TSRMLS_FETCH_FROM_CTX(s
->ts
);
703 *encoded_len
= PHP_HTTP_DEFLATE_BUFFER_SIZE
;
704 *encoded
= emalloc(*encoded_len
);
706 /* deflate remaining input */
707 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
708 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
710 ctx
->avail_out
= *encoded_len
;
711 ctx
->next_out
= (Bytef
*) *encoded
;
714 status
= deflate(ctx
, Z_FINISH
);
715 } while (Z_OK
== status
);
717 if (Z_STREAM_END
== status
) {
718 /* cut processed intp off */
719 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
722 *encoded_len
-= ctx
->avail_out
;
723 *encoded
= erealloc(*encoded
, *encoded_len
+ 1);
724 (*encoded
)[*encoded_len
] = '\0';
728 STR_SET(*encoded
, NULL
);
730 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to finish deflate stream: %s", zError(status
));
734 static STATUS
inflate_finish(php_http_encoding_stream_t
*s
, char **decoded
, size_t *decoded_len
)
737 z_streamp ctx
= s
->ctx
;
738 TSRMLS_FETCH_FROM_CTX(s
->ts
);
740 if (!PHP_HTTP_BUFFER_LEN(ctx
->opaque
)) {
746 *decoded_len
= (PHP_HTTP_BUFFER_LEN(ctx
->opaque
) + 1) * PHP_HTTP_INFLATE_ROUNDS
;
747 *decoded
= emalloc(*decoded_len
);
749 /* inflate remaining input */
750 ctx
->next_in
= (Bytef
*) PHP_HTTP_BUFFER_VAL(ctx
->opaque
);
751 ctx
->avail_in
= PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
753 ctx
->avail_out
= *decoded_len
;
754 ctx
->next_out
= (Bytef
*) *decoded
;
756 if (Z_STREAM_END
== (status
= inflate(ctx
, Z_FINISH
))) {
757 /* cut processed input off */
758 php_http_buffer_cut(PHP_HTTP_BUFFER(ctx
->opaque
), 0, PHP_HTTP_BUFFER_LEN(ctx
->opaque
) - ctx
->avail_in
);
761 *decoded_len
-= ctx
->avail_out
;
762 *decoded
= erealloc(*decoded
, *decoded_len
+ 1);
763 (*decoded
)[*decoded_len
] = '\0';
767 STR_SET(*decoded
, NULL
);
769 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Failed to finish inflate stream: %s", zError(status
));
773 static zend_bool
deflate_done(php_http_encoding_stream_t
*s
)
775 z_streamp ctx
= s
->ctx
;
776 return !ctx
->avail_in
&& !PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
779 static zend_bool
inflate_done(php_http_encoding_stream_t
*s
)
781 z_streamp ctx
= s
->ctx
;
782 return !ctx
->avail_in
&& !PHP_HTTP_BUFFER_LEN(ctx
->opaque
);
785 static zend_bool
dechunk_done(php_http_encoding_stream_t
*s
)
787 return ((struct dechunk_ctx
*) s
->ctx
)->zeroed
;
790 static void deflate_dtor(php_http_encoding_stream_t
*s
)
793 z_streamp ctx
= s
->ctx
;
796 php_http_buffer_free((php_http_buffer_t
**) &ctx
->opaque
);
799 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
804 static void inflate_dtor(php_http_encoding_stream_t
*s
)
807 z_streamp ctx
= s
->ctx
;
810 php_http_buffer_free((php_http_buffer_t
**) &ctx
->opaque
);
813 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
818 static void dechunk_dtor(php_http_encoding_stream_t
*s
)
821 struct dechunk_ctx
*ctx
= s
->ctx
;
823 php_http_buffer_dtor(&ctx
->buffer
);
824 pefree(ctx
, (s
->flags
& PHP_HTTP_ENCODING_STREAM_PERSISTENT
));
829 static php_http_encoding_stream_ops_t php_http_encoding_deflate_ops
= {
839 PHP_HTTP_API php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_deflate_ops(void)
841 return &php_http_encoding_deflate_ops
;
844 static php_http_encoding_stream_ops_t php_http_encoding_inflate_ops
= {
854 PHP_HTTP_API php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_inflate_ops(void)
856 return &php_http_encoding_inflate_ops
;
859 static php_http_encoding_stream_ops_t php_http_encoding_dechunk_ops
= {
869 PHP_HTTP_API php_http_encoding_stream_ops_t
*php_http_encoding_stream_get_dechunk_ops(void)
871 return &php_http_encoding_dechunk_ops
;
874 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpEncodingStream, method, 0, req_args)
875 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpEncodingStream, method, 0)
876 #define PHP_HTTP_ENCSTREAM_ME(method, visibility) PHP_ME(HttpEncodingStream, method, PHP_HTTP_ARGS(HttpEncodingStream, method), visibility)
878 PHP_HTTP_BEGIN_ARGS(__construct
, 0)
879 PHP_HTTP_ARG_VAL(flags
, 0)
882 PHP_HTTP_BEGIN_ARGS(update
, 1)
883 PHP_HTTP_ARG_VAL(data
, 0)
886 PHP_HTTP_EMPTY_ARGS(flush
);
887 PHP_HTTP_EMPTY_ARGS(done
);
888 PHP_HTTP_EMPTY_ARGS(finish
);
890 zend_class_entry
*php_http_encoding_stream_class_entry
;
891 zend_function_entry php_http_encoding_stream_method_entry
[] = {
892 PHP_HTTP_ENCSTREAM_ME(__construct
, ZEND_ACC_PUBLIC
|ZEND_ACC_CTOR
)
893 PHP_HTTP_ENCSTREAM_ME(update
, ZEND_ACC_PUBLIC
)
894 PHP_HTTP_ENCSTREAM_ME(flush
, ZEND_ACC_PUBLIC
)
895 PHP_HTTP_ENCSTREAM_ME(done
, ZEND_ACC_PUBLIC
)
896 PHP_HTTP_ENCSTREAM_ME(finish
, ZEND_ACC_PUBLIC
)
900 static zend_object_handlers php_http_encoding_stream_object_handlers
;
902 zend_object_value
php_http_encoding_stream_object_new(zend_class_entry
*ce TSRMLS_DC
)
904 return php_http_encoding_stream_object_new_ex(ce
, NULL
, NULL TSRMLS_CC
);
907 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
)
909 zend_object_value ov
;
910 php_http_encoding_stream_object_t
*o
;
912 o
= ecalloc(1, sizeof(*o
));
913 zend_object_std_init((zend_object
*) o
, ce TSRMLS_CC
);
914 object_properties_init((zend_object
*) o
, ce
);
924 ov
.handle
= zend_objects_store_put((zend_object
*) o
, NULL
, php_http_encoding_stream_object_free
, NULL TSRMLS_CC
);
925 ov
.handlers
= &php_http_encoding_stream_object_handlers
;
930 zend_object_value
php_http_encoding_stream_object_clone(zval
*this_ptr TSRMLS_DC
)
932 zend_object_value new_ov
;
933 php_http_encoding_stream_object_t
*new_obj
= NULL
, *old_obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
935 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
);
936 zend_objects_clone_members(&new_obj
->zo
, new_ov
, &old_obj
->zo
, Z_OBJ_HANDLE_P(this_ptr
) TSRMLS_CC
);
941 void php_http_encoding_stream_object_free(void *object TSRMLS_DC
)
943 php_http_encoding_stream_object_t
*o
= (php_http_encoding_stream_object_t
*) object
;
946 php_http_encoding_stream_free(&o
->stream
);
948 zend_object_std_dtor((zend_object
*) o TSRMLS_CC
);
952 PHP_METHOD(HttpEncodingStream
, __construct
)
954 with_error_handling(EH_THROW
, php_http_exception_class_entry
) {
957 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "|l", &flags
)) {
958 with_error_handling(EH_THROW
, php_http_exception_class_entry
) {
959 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
962 php_http_encoding_stream_ops_t
*ops
= NULL
;
964 if (instanceof_function(obj
->zo
.ce
, php_http_deflate_stream_class_entry TSRMLS_CC
)) {
965 ops
= &php_http_encoding_deflate_ops
;
966 } else if (instanceof_function(obj
->zo
.ce
, php_http_inflate_stream_class_entry TSRMLS_CC
)) {
967 ops
= &php_http_encoding_inflate_ops
;
968 } else if (instanceof_function(obj
->zo
.ce
, php_http_dechunk_stream_class_entry TSRMLS_CC
)) {
969 ops
= &php_http_encoding_dechunk_ops
;
973 obj
->stream
= php_http_encoding_stream_init(obj
->stream
, ops
, flags TSRMLS_CC
);
975 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "Unknown HttpEncodingStream class %s", obj
->zo
.ce
->name
);
979 php_http_error(HE_WARNING
, PHP_HTTP_E_ENCODING
, "HttpEncodingStream cannot be initialized twice");
981 } end_error_handling();
983 } end_error_handling();
986 PHP_METHOD(HttpEncodingStream
, update
)
991 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s", &data_str
, &data_len
)) {
992 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
998 if (SUCCESS
== php_http_encoding_stream_update(obj
->stream
, data_str
, data_len
, &encoded_str
, &encoded_len
)) {
999 RETURN_STRINGL(encoded_str
, encoded_len
, 0);
1006 PHP_METHOD(HttpEncodingStream
, flush
)
1008 if (SUCCESS
== zend_parse_parameters_none()) {
1009 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
1015 if (SUCCESS
== php_http_encoding_stream_flush(obj
->stream
, &encoded_str
, &encoded_len
)) {
1016 RETURN_STRINGL(encoded_str
, encoded_len
, 0);
1023 PHP_METHOD(HttpEncodingStream
, done
)
1025 if (SUCCESS
== zend_parse_parameters_none()) {
1026 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
1029 RETURN_BOOL(php_http_encoding_stream_done(obj
->stream
));
1035 PHP_METHOD(HttpEncodingStream
, finish
)
1037 if (SUCCESS
== zend_parse_parameters_none()) {
1038 php_http_encoding_stream_object_t
*obj
= zend_object_store_get_object(getThis() TSRMLS_CC
);
1044 if (SUCCESS
== php_http_encoding_stream_finish(obj
->stream
, &encoded_str
, &encoded_len
)) {
1045 if (SUCCESS
== php_http_encoding_stream_reset(&obj
->stream
)) {
1046 RETURN_STRINGL(encoded_str
, encoded_len
, 0);
1048 STR_FREE(encoded_str
);
1056 #undef PHP_HTTP_BEGIN_ARGS
1057 #undef PHP_HTTP_EMPTY_ARGS
1058 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpDeflateStream, method, 0, req_args)
1059 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpDeflateStream, method, 0)
1060 #define PHP_HTTP_DEFLATE_ME(method, visibility) PHP_ME(HttpDeflateStream, method, PHP_HTTP_ARGS(HttpDeflateStream, method), visibility)
1062 PHP_HTTP_BEGIN_ARGS(encode
, 1)
1063 PHP_HTTP_ARG_VAL(data
, 0)
1064 PHP_HTTP_ARG_VAL(flags
, 0)
1067 zend_class_entry
*php_http_deflate_stream_class_entry
;
1068 zend_function_entry php_http_deflate_stream_method_entry
[] = {
1069 PHP_HTTP_DEFLATE_ME(encode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1071 EMPTY_FUNCTION_ENTRY
1074 PHP_METHOD(HttpDeflateStream
, encode
)
1080 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s|l", &str
, &len
, &flags
)) {
1084 if (SUCCESS
== php_http_encoding_deflate(flags
, str
, len
, &enc_str
, &enc_len TSRMLS_CC
)) {
1085 RETURN_STRINGL(enc_str
, enc_len
, 0);
1091 #undef PHP_HTTP_BEGIN_ARGS
1092 #undef PHP_HTTP_EMPTY_ARGS
1093 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpInflateStream, method, 0, req_args)
1094 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpInflateStream, method, 0)
1095 #define PHP_HTTP_INFLATE_ME(method, visibility) PHP_ME(HttpInflateStream, method, PHP_HTTP_ARGS(HttpInflateStream, method), visibility)
1097 PHP_HTTP_BEGIN_ARGS(decode
, 1)
1098 PHP_HTTP_ARG_VAL(data
, 0)
1101 zend_class_entry
*php_http_inflate_stream_class_entry
;
1102 zend_function_entry php_http_inflate_stream_method_entry
[] = {
1103 PHP_HTTP_INFLATE_ME(decode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1105 EMPTY_FUNCTION_ENTRY
1108 PHP_METHOD(HttpInflateStream
, decode
)
1113 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s", &str
, &len
)) {
1117 if (SUCCESS
== php_http_encoding_inflate(str
, len
, &enc_str
, &enc_len TSRMLS_CC
)) {
1118 RETURN_STRINGL(enc_str
, enc_len
, 0);
1124 #undef PHP_HTTP_BEGIN_ARGS
1125 #undef PHP_HTTP_EMPTY_ARGS
1126 #define PHP_HTTP_BEGIN_ARGS(method, req_args) PHP_HTTP_BEGIN_ARGS_EX(HttpDechunkStream, method, 0, req_args)
1127 #define PHP_HTTP_EMPTY_ARGS(method) PHP_HTTP_EMPTY_ARGS_EX(HttpDechunkStream, method, 0)
1128 #define PHP_HTTP_DECHUNK_ME(method, visibility) PHP_ME(HttpDechunkStream, method, PHP_HTTP_ARGS(HttpDechunkStream, method), visibility)
1130 PHP_HTTP_BEGIN_ARGS(decode
, 1)
1131 PHP_HTTP_ARG_VAL(data
, 0)
1132 PHP_HTTP_ARG_VAL(decoded_len
, 1)
1135 zend_class_entry
*php_http_dechunk_stream_class_entry
;
1136 zend_function_entry php_http_dechunk_stream_method_entry
[] = {
1137 PHP_HTTP_DECHUNK_ME(decode
, ZEND_ACC_PUBLIC
|ZEND_ACC_STATIC
)
1139 EMPTY_FUNCTION_ENTRY
1142 PHP_METHOD(HttpDechunkStream
, decode
)
1148 if (SUCCESS
== zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC
, "s|z!", &str
, &len
, &zlen
)) {
1149 const char *end_ptr
;
1153 if ((end_ptr
= php_http_encoding_dechunk(str
, len
, &enc_str
, &enc_len TSRMLS_CC
))) {
1156 ZVAL_LONG(zlen
, str
+ len
- end_ptr
);
1158 RETURN_STRINGL(enc_str
, enc_len
, 0);
1164 PHP_MINIT_FUNCTION(http_encoding
)
1166 PHP_HTTP_REGISTER_CLASS(http
\\Encoding
, Stream
, http_encoding_stream
, php_http_object_class_entry
, ZEND_ACC_EXPLICIT_ABSTRACT_CLASS
);
1167 php_http_encoding_stream_class_entry
->create_object
= php_http_encoding_stream_object_new
;
1168 memcpy(&php_http_encoding_stream_object_handlers
, zend_get_std_object_handlers(), sizeof(zend_object_handlers
));
1169 php_http_encoding_stream_object_handlers
.clone_obj
= php_http_encoding_stream_object_clone
;
1171 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_NONE"), PHP_HTTP_ENCODING_STREAM_FLUSH_NONE TSRMLS_CC
);
1172 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_SYNC"), PHP_HTTP_ENCODING_STREAM_FLUSH_SYNC TSRMLS_CC
);
1173 zend_declare_class_constant_long(php_http_encoding_stream_class_entry
, ZEND_STRL("FLUSH_FULL"), PHP_HTTP_ENCODING_STREAM_FLUSH_FULL TSRMLS_CC
);
1175 PHP_HTTP_REGISTER_CLASS(http
\\Encoding
\\Stream
, Deflate
, http_deflate_stream
, php_http_encoding_stream_class_entry
, 0);
1177 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_GZIP"), PHP_HTTP_DEFLATE_TYPE_GZIP TSRMLS_CC
);
1178 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_ZLIB"), PHP_HTTP_DEFLATE_TYPE_ZLIB TSRMLS_CC
);
1179 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("TYPE_RAW"), PHP_HTTP_DEFLATE_TYPE_RAW TSRMLS_CC
);
1180 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_DEF"), PHP_HTTP_DEFLATE_LEVEL_DEF TSRMLS_CC
);
1181 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_MIN"), PHP_HTTP_DEFLATE_LEVEL_MIN TSRMLS_CC
);
1182 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("LEVEL_MAX"), PHP_HTTP_DEFLATE_LEVEL_MAX TSRMLS_CC
);
1183 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_DEF"), PHP_HTTP_DEFLATE_STRATEGY_DEF TSRMLS_CC
);
1184 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_FILT"), PHP_HTTP_DEFLATE_STRATEGY_FILT TSRMLS_CC
);
1185 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_HUFF"), PHP_HTTP_DEFLATE_STRATEGY_HUFF TSRMLS_CC
);
1186 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_RLE"), PHP_HTTP_DEFLATE_STRATEGY_RLE TSRMLS_CC
);
1187 zend_declare_class_constant_long(php_http_deflate_stream_class_entry
, ZEND_STRL("STRATEGY_FIXED"), PHP_HTTP_DEFLATE_STRATEGY_FIXED TSRMLS_CC
);
1189 PHP_HTTP_REGISTER_CLASS(http
\\Encoding
\\Stream
, Inflate
, http_inflate_stream
, php_http_encoding_stream_class_entry
, 0);
1190 PHP_HTTP_REGISTER_CLASS(http
\\Encoding
\\Stream
, Dechunk
, http_dechunk_stream
, php_http_encoding_stream_class_entry
, 0);
1201 * vim600: noet sw=4 ts=4 fdm=marker
1202 * vim<600: noet sw=4 ts=4