| modification, are permitted provided that the conditions mentioned |
| in the accompanying LICENSE file are met. |
+--------------------------------------------------------------------+
- | Copyright (c) 2004-2010, Michael Wallner <mike@php.net> |
+ | Copyright (c) 2004-2011, Michael Wallner <mike@php.net> |
+--------------------------------------------------------------------+
*/
-/* $Id: http_encoding_api.c 298592 2010-04-26 11:47:29Z mike $ */
+#include "php_http_api.h"
-#include "php_http.h"
+#include <zlib.h>
static inline int eol_match(char **line, int *eol_len)
{
const char *e_ptr = encoded;
*decoded_len = 0;
- *decoded = ecalloc(1, encoded_len);
+ *decoded = ecalloc(1, encoded_len + 1);
while ((encoded + encoded_len - e_ptr) > 0) {
ulong chunk_len = 0, rest;
php_http_error(HE_NOTICE, PHP_HTTP_E_ENCODING, "Data does not seem to be chunked encoded");
memcpy(*decoded, encoded, encoded_len);
*decoded_len = encoded_len;
+ decoded[*decoded_len] = '\0';
return encoded + encoded_len;
} else {
efree(*decoded);
static inline int php_http_inflate_rounds(z_stream *Z, int flush, char **buf, size_t *len)
{
int status = 0, round = 0;
- php_http_buffer buffer;
+ php_http_buffer_t buffer;
*buf = NULL;
*len = 0;
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);
#endif
status = inflate(Z, flush);
-
- buffer.used += buffer.free - Z->avail_out;
- buffer.free = Z->avail_out;
+ php_http_buffer_account(&buffer, buffer.free - Z->avail_out);
#if 0
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);
#endif
status = inflateInit2(&Z, wbits);
if (Z_OK == status) {
Z.next_in = (Bytef *) data;
- Z.avail_in = data_len;
+ Z.avail_in = data_len + 1; /* include the terminating NULL, see #61287 */
switch (status = php_http_inflate_rounds(&Z, Z_NO_FLUSH, decoded, decoded_len)) {
case Z_STREAM_END:
wbits = PHP_HTTP_WINDOW_BITS_RAW;
goto retry_raw_inflate;
}
+ break;
}
inflateEnd(&Z);
{
TSRMLS_FETCH_FROM_CTX(from->ts);
- if (!from->ops->copy) {
- return NULL;
+ if (from->ops->copy) {
+ int freeme;
+ php_http_encoding_stream_t *ns;
+
+ if ((freeme = !to)) {
+ to = pemalloc(sizeof(*to), (from->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT));
+ }
+ memset(to, 0, sizeof(*to));
+
+ to->flags = from->flags;
+ to->ops = from->ops;
+ TSRMLS_SET_CTX(to->ts);
+
+ if ((ns = to->ops->copy(from, to))) {
+ return ns;
+ } else {
+ return to;
+ }
+
+ if (freeme) {
+ pefree(to, (to->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT));
+ }
}
- return from->ops->copy(from, php_http_encoding_stream_init(to, from->ops, from->flags TSRMLS_CC));
+ return NULL;
}
PHP_HTTP_API STATUS php_http_encoding_stream_reset(php_http_encoding_stream_t **s)
PHP_HTTP_API STATUS php_http_encoding_stream_flush(php_http_encoding_stream_t *s, char **out_str, size_t *out_len)
{
if (!s->ops->flush) {
+ *out_str = NULL;
+ *out_len = 0;
return SUCCESS;
}
return s->ops->flush(s, out_str, out_len);
PHP_HTTP_API STATUS php_http_encoding_stream_finish(php_http_encoding_stream_t *s, char **out_str, size_t *out_len)
{
if (!s->ops->finish) {
+ *out_str = NULL;
+ *out_len = 0;
return SUCCESS;
}
return s->ops->finish(s, out_str, out_len);
}
struct dechunk_ctx {
- php_http_buffer buffer;
+ php_http_buffer_t buffer;
ulong hexlen;
unsigned zeroed:1;
};
static php_http_encoding_stream_t *dechunk_init(php_http_encoding_stream_t *s)
{
struct dechunk_ctx *ctx = pecalloc(1, sizeof(*ctx), (s->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT));
- TSRMLS_FETCH_FROM_CTX(s->ts);
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)) {
return NULL;
static php_http_encoding_stream_t *deflate_copy(php_http_encoding_stream_t *from, php_http_encoding_stream_t *to)
{
- z_streamp from_ctx = from->ctx, to_ctx = to->ctx;
-
- deflateCopy(to_ctx, from_ctx);
- php_http_buffer_append(to_ctx->opaque, PHP_HTTP_BUFFER_VAL(from_ctx->opaque), PHP_HTTP_BUFFER_LEN(from_ctx->opaque));
+ int status, p = to->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT;
+ z_streamp from_ctx = from->ctx, to_ctx = pecalloc(1, sizeof(*to_ctx), p);
+ TSRMLS_FETCH_FROM_CTX(from->ts);
- return to;
+ if (Z_OK == (status = deflateCopy(to_ctx, from_ctx))) {
+ if ((to_ctx->opaque = php_http_buffer_init_ex(NULL, PHP_HTTP_DEFLATE_BUFFER_SIZE, p ? PHP_HTTP_BUFFER_INIT_PERSISTENT : 0))) {
+ php_http_buffer_append(to_ctx->opaque, PHP_HTTP_BUFFER_VAL(from_ctx->opaque), PHP_HTTP_BUFFER_LEN(from_ctx->opaque));
+ to->ctx = to_ctx;
+ return to;
+ }
+ deflateEnd(to_ctx);
+ status = Z_MEM_ERROR;
+ }
+ php_http_error(HE_WARNING, PHP_HTTP_E_ENCODING, "Failed to copy deflate encoding stream: %s", zError(status));
+ return NULL;
}
static php_http_encoding_stream_t *inflate_copy(php_http_encoding_stream_t *from, php_http_encoding_stream_t *to)
{
- z_streamp from_ctx = from->ctx, to_ctx = to->ctx;
-
- inflateCopy(to_ctx, from_ctx);
- php_http_buffer_append(to_ctx->opaque, PHP_HTTP_BUFFER_VAL(from_ctx->opaque), PHP_HTTP_BUFFER_LEN(from_ctx->opaque));
+ int status, p = from->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT;
+ z_streamp from_ctx = from->ctx, to_ctx = pecalloc(1, sizeof(*to_ctx), p);
+ TSRMLS_FETCH_FROM_CTX(from->ts);
- return to;
+ if (Z_OK == (status = inflateCopy(to_ctx, from_ctx))) {
+ if ((to_ctx->opaque = php_http_buffer_init_ex(NULL, PHP_HTTP_DEFLATE_BUFFER_SIZE, p ? PHP_HTTP_BUFFER_INIT_PERSISTENT : 0))) {
+ php_http_buffer_append(to_ctx->opaque, PHP_HTTP_BUFFER_VAL(from_ctx->opaque), PHP_HTTP_BUFFER_LEN(from_ctx->opaque));
+ to->ctx = to_ctx;
+ return to;
+ }
+ inflateEnd(to_ctx);
+ status = Z_MEM_ERROR;
+ }
+ php_http_error(HE_WARNING, PHP_HTTP_E_ENCODING, "Failed to copy inflate encoding stream: %s", zError(status));
+ return NULL;
}
static php_http_encoding_stream_t *dechunk_copy(php_http_encoding_stream_t *from, php_http_encoding_stream_t *to)
{
- struct dechunk_ctx *from_ctx = from->ctx, *to_ctx = to->ctx;
-
- to_ctx->hexlen = from_ctx->hexlen;
- to_ctx->zeroed = from_ctx->zeroed;
- php_http_buffer_append(&to_ctx->buffer, PHP_HTTP_BUFFER_VAL(&from_ctx->buffer), PHP_HTTP_BUFFER_LEN(&from_ctx->buffer));
+ int p = from->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT;
+ struct dechunk_ctx *from_ctx = from->ctx, *to_ctx = pemalloc(sizeof(*to_ctx), p);
+ TSRMLS_FETCH_FROM_CTX(from->ts);
- return to;
+ if (php_http_buffer_init_ex(&to_ctx->buffer, PHP_HTTP_BUFFER_DEFAULT_SIZE, p ? PHP_HTTP_BUFFER_INIT_PERSISTENT : 0)) {
+ to_ctx->hexlen = from_ctx->hexlen;
+ to_ctx->zeroed = from_ctx->zeroed;
+ php_http_buffer_append(&to_ctx->buffer, PHP_HTTP_BUFFER_VAL(&from_ctx->buffer), PHP_HTTP_BUFFER_LEN(&from_ctx->buffer));
+ to->ctx = to_ctx;
+ return to;
+ }
+ pefree(to_ctx, p);
+ php_http_error(HE_WARNING, PHP_HTTP_E_ENCODING, "Failed to copy inflate encoding stream: out of memory");
+ return NULL;
}
static STATUS deflate_update(php_http_encoding_stream_t *s, const char *data, size_t data_len, char **encoded, size_t *encoded_len)
/* append input to buffer */
php_http_buffer_append(PHP_HTTP_BUFFER(ctx->opaque), data, data_len);
-
+
retry_raw_inflate:
ctx->next_in = (Bytef *) PHP_HTTP_BUFFER_VAL(ctx->opaque);
ctx->avail_in = PHP_HTTP_BUFFER_LEN(ctx->opaque);
inflateInit2(ctx, PHP_HTTP_WINDOW_BITS_RAW);
goto retry_raw_inflate;
}
+ break;
}
php_http_error(HE_WARNING, PHP_HTTP_E_ENCODING, "Failed to update inflate stream: %s", zError(status));
static STATUS dechunk_update(php_http_encoding_stream_t *s, const char *data, size_t data_len, char **decoded, size_t *decoded_len)
{
- php_http_buffer tmp;
+ php_http_buffer_t tmp;
struct dechunk_ctx *ctx = s->ctx;
TSRMLS_FETCH_FROM_CTX(s->ts);
if (ctx->zeroed) {
+ php_http_error(HE_WARNING, PHP_HTTP_E_ENCODING, "Dechunk encoding stream has already reached the end of chunked input");
return FAILURE;
}
- if (PHP_HTTP_BUFFER_NOMEM == php_http_buffer_append(&ctx->buffer, data, data_len)) {
- return FAILURE;
- }
- if (!php_http_buffer_fix(&ctx->buffer)) {
+ if ((PHP_HTTP_BUFFER_NOMEM == php_http_buffer_append(&ctx->buffer, data, data_len)) || !php_http_buffer_fix(&ctx->buffer)) {
+ /* OOM */
return FAILURE;
}
/* if strtoul() stops at the beginning of the buffered data
there's domething oddly wrong, i.e. bad input */
if (stop == PHP_HTTP_BUFFER_VAL(&ctx->buffer)) {
+ php_http_error(HE_WARNING, PHP_HTTP_E_ENCODING, "Failed to parse chunk len from '%.*s'", MIN(16, ctx->buffer.used), ctx->buffer.data);
php_http_buffer_dtor(&tmp);
return FAILURE;
}
z_streamp ctx = s->ctx;
if (ctx->opaque) {
- php_http_buffer_free((php_http_buffer **) &ctx->opaque);
+ php_http_buffer_free((php_http_buffer_t **) &ctx->opaque);
}
deflateEnd(ctx);
pefree(ctx, (s->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT));
z_streamp ctx = s->ctx;
if (ctx->opaque) {
- php_http_buffer_free((php_http_buffer **) &ctx->opaque);
+ php_http_buffer_free((php_http_buffer_t **) &ctx->opaque);
}
inflateEnd(ctx);
pefree(ctx, (s->flags & PHP_HTTP_ENCODING_STREAM_PERSISTENT));
php_http_encoding_stream_object_t *o = (php_http_encoding_stream_object_t *) object;
if (o->stream) {
- php_http_encoding_stream_free(&o->stream TSRMLS_CC);
+ php_http_encoding_stream_free(&o->stream);
}
zend_object_std_dtor((zend_object *) o TSRMLS_CC);
efree(o);
PHP_METHOD(HttpEncodingStream, __construct)
{
- with_error_handling(EH_THROW, PHP_HTTP_EX_CE(runtime)) {
+ with_error_handling(EH_THROW, php_http_exception_class_entry) {
long flags = 0;
if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &flags)) {
- with_error_handling(EH_THROW, PHP_HTTP_EX_CE(encoding)) {
+ with_error_handling(EH_THROW, php_http_exception_class_entry) {
php_http_encoding_stream_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
if (!obj->stream) {
size_t encoded_len;
char *encoded_str;
- if (SUCCESS == php_http_encoding_stream_update(obj->stream, data_str, data_len, &encoded_str, &encoded_len TSRMLS_CC)) {
+ if (SUCCESS == php_http_encoding_stream_update(obj->stream, data_str, data_len, &encoded_str, &encoded_len)) {
RETURN_STRINGL(encoded_str, encoded_len, 0);
}
}
char *encoded_str;
size_t encoded_len;
- if (SUCCESS == php_http_encoding_stream_flush(obj->stream, &encoded_str, &encoded_len TSRMLS_CC)) {
+ if (SUCCESS == php_http_encoding_stream_flush(obj->stream, &encoded_str, &encoded_len)) {
RETURN_STRINGL(encoded_str, encoded_len, 0);
}
}
char *encoded_str;
size_t encoded_len;
- if (SUCCESS == php_http_encoding_stream_finish(obj->stream, &encoded_str, &encoded_len TSRMLS_CC)) {
+ if (SUCCESS == php_http_encoding_stream_finish(obj->stream, &encoded_str, &encoded_len)) {
if (SUCCESS == php_http_encoding_stream_reset(&obj->stream)) {
- RETURN_STRINGL(encoded_str, encoded_len, 0);
+ if (encoded_str) {
+ RETURN_STRINGL(encoded_str, encoded_len, 0);
+ } else {
+ RETURN_EMPTY_STRING();
+ }
} else {
STR_FREE(encoded_str);
}
{
char *str;
int len;
- zval *zlen;
+ zval *zlen = NULL;
if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|z!", &str, &len, &zlen)) {
const char *end_ptr;
PHP_MINIT_FUNCTION(http_encoding)
{
- PHP_HTTP_REGISTER_CLASS(http\\encoding, Stream, http_encoding_stream, php_http_object_class_entry, ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
+ PHP_HTTP_REGISTER_CLASS(http\\Encoding, Stream, http_encoding_stream, php_http_object_class_entry, ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
php_http_encoding_stream_class_entry->create_object = php_http_encoding_stream_object_new;
memcpy(&php_http_encoding_stream_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
php_http_encoding_stream_object_handlers.clone_obj = php_http_encoding_stream_object_clone;
zend_declare_class_constant_long(php_http_encoding_stream_class_entry, ZEND_STRL("FLUSH_SYNC"), PHP_HTTP_ENCODING_STREAM_FLUSH_SYNC TSRMLS_CC);
zend_declare_class_constant_long(php_http_encoding_stream_class_entry, ZEND_STRL("FLUSH_FULL"), PHP_HTTP_ENCODING_STREAM_FLUSH_FULL TSRMLS_CC);
- PHP_HTTP_REGISTER_CLASS(http\\encoding\\stream, Deflate, http_deflate_stream, php_http_encoding_stream_class_entry, 0);
+ PHP_HTTP_REGISTER_CLASS(http\\Encoding\\Stream, Deflate, http_deflate_stream, php_http_encoding_stream_class_entry, 0);
zend_declare_class_constant_long(php_http_deflate_stream_class_entry, ZEND_STRL("TYPE_GZIP"), PHP_HTTP_DEFLATE_TYPE_GZIP TSRMLS_CC);
zend_declare_class_constant_long(php_http_deflate_stream_class_entry, ZEND_STRL("TYPE_ZLIB"), PHP_HTTP_DEFLATE_TYPE_ZLIB TSRMLS_CC);
zend_declare_class_constant_long(php_http_deflate_stream_class_entry, ZEND_STRL("STRATEGY_RLE"), PHP_HTTP_DEFLATE_STRATEGY_RLE TSRMLS_CC);
zend_declare_class_constant_long(php_http_deflate_stream_class_entry, ZEND_STRL("STRATEGY_FIXED"), PHP_HTTP_DEFLATE_STRATEGY_FIXED TSRMLS_CC);
- PHP_HTTP_REGISTER_CLASS(http\\encoding\\stream, Inflate, http_inflate_stream, php_http_encoding_stream_class_entry, 0);
- PHP_HTTP_REGISTER_CLASS(http\\encoding\\stream, Dechunk, http_dechunk_stream, php_http_encoding_stream_class_entry, 0);
+ PHP_HTTP_REGISTER_CLASS(http\\Encoding\\Stream, Inflate, http_inflate_stream, php_http_encoding_stream_class_entry, 0);
+ PHP_HTTP_REGISTER_CLASS(http\\Encoding\\Stream, Dechunk, http_dechunk_stream, php_http_encoding_stream_class_entry, 0);
return SUCCESS;
}