/* {{{ php_stream_bucket_attach */
static void php_stream_bucket_attach(int append, INTERNAL_FUNCTION_PARAMETERS)
{
zval *zbrigade, *zobject;
zval *pzbucket, *pzdata;
php_stream_bucket_brigade *brigade;
php_stream_bucket *bucket;
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_RESOURCE(zbrigade)
Z_PARAM_OBJECT(zobject)
ZEND_PARSE_PARAMETERS_END_EX(RETURN_FALSE);
if (NULL == (pzbucket = zend_hash_str_find(Z_OBJPROP_P(zobject), "bucket", sizeof("bucket")-1))) {
php_error_docref(NULL, E_WARNING, "Object has no bucket property");
RETURN_FALSE;
}
if ((brigade = (php_stream_bucket_brigade*)zend_fetch_resource(
Z_RES_P(zbrigade), PHP_STREAM_BRIGADE_RES_NAME, le_bucket_brigade)) == NULL) {
RETURN_FALSE;
}
if ((bucket = (php_stream_bucket *)zend_fetch_resource_ex(pzbucket, PHP_STREAM_BUCKET_RES_NAME, le_bucket)) == NULL) {
RETURN_FALSE;
}
if (NULL != (pzdata = zend_hash_str_find(Z_OBJPROP_P(zobject), "data", sizeof("data")-1)) && Z_TYPE_P(pzdata) == IS_STRING) {
if (!bucket->own_buf) {
bucket = php_stream_bucket_make_writeable(bucket);
}
if (bucket->buflen != Z_STRLEN_P(pzdata)) {
bucket->buf = perealloc(bucket->buf, Z_STRLEN_P(pzdata), bucket->is_persistent);
bucket->buflen = Z_STRLEN_P(pzdata);
}
memcpy(bucket->buf, Z_STRVAL_P(pzdata), bucket->buflen);
}
if (append) {
php_stream_bucket_append(brigade, bucket);
} else {
php_stream_bucket_prepend(brigade, bucket);
}
/* This is a hack necessary to accommodate situations where bucket is appended to the stream
* multiple times. See bug35916.phpt for reference.
*/
if (bucket->refcount == 1) {
bucket->refcount++;
}
}
/* {{{ php_stream_bucket_attach */
static void php_stream_bucket_attach(int append, INTERNAL_FUNCTION_PARAMETERS)
{
zval *zbrigade, *zobject;
zval *pzbucket, *pzdata;
php_stream_bucket_brigade *brigade;
php_stream_bucket *bucket;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "zo", &zbrigade, &zobject) == FAILURE) {
RETURN_FALSE;
}
if (NULL == (pzbucket = zend_hash_str_find(Z_OBJPROP_P(zobject), "bucket", sizeof("bucket")-1))) {
php_error_docref(NULL, E_WARNING, "Object has no bucket property");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(brigade, php_stream_bucket_brigade *, zbrigade, -1, PHP_STREAM_BRIGADE_RES_NAME, le_bucket_brigade);
ZEND_FETCH_RESOURCE(bucket, php_stream_bucket *, pzbucket, -1, PHP_STREAM_BUCKET_RES_NAME, le_bucket);
if (NULL != (pzdata = zend_hash_str_find(Z_OBJPROP_P(zobject), "data", sizeof("data")-1)) && Z_TYPE_P(pzdata) == IS_STRING) {
if (!bucket->own_buf) {
bucket = php_stream_bucket_make_writeable(bucket);
}
if ((int)bucket->buflen != Z_STRLEN_P(pzdata)) {
bucket->buf = perealloc(bucket->buf, Z_STRLEN_P(pzdata), bucket->is_persistent);
bucket->buflen = Z_STRLEN_P(pzdata);
}
memcpy(bucket->buf, Z_STRVAL_P(pzdata), bucket->buflen);
}
if (append) {
php_stream_bucket_append(brigade, bucket);
} else {
php_stream_bucket_prepend(brigade, bucket);
}
/* This is a hack necessary to accommodate situations where bucket is appended to the stream
* multiple times. See bug35916.phpt for reference.
*/
if (bucket->refcount == 1) {
bucket->refcount++;
}
}
static php_stream_filter_status_t php_zlib_inflate_filter(
php_stream *stream,
php_stream_filter *thisfilter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed,
int flags
TSRMLS_DC)
{
php_zlib_filter_data *data;
php_stream_bucket *bucket;
size_t consumed = 0;
int status;
php_stream_filter_status_t exit_status = PSFS_FEED_ME;
if (!thisfilter || !thisfilter->abstract) {
/* Should never happen */
return PSFS_ERR_FATAL;
}
data = (php_zlib_filter_data *)(thisfilter->abstract);
while (buckets_in->head) {
size_t bin = 0, desired;
bucket = buckets_in->head;
bucket = php_stream_bucket_make_writeable(buckets_in->head TSRMLS_CC);
while (bin < (unsigned int) bucket->buflen) {
if (data->finished) {
consumed += bucket->buflen;
break;
}
desired = bucket->buflen - bin;
if (desired > data->inbuf_len) {
desired = data->inbuf_len;
}
memcpy(data->strm.next_in, bucket->buf + bin, desired);
data->strm.avail_in = desired;
status = inflate(&(data->strm), flags & PSFS_FLAG_FLUSH_CLOSE ? Z_FINISH : Z_SYNC_FLUSH);
if (status == Z_STREAM_END) {
inflateEnd(&(data->strm));
data->finished = '\1';
} else if (status != Z_OK) {
/* Something bad happened */
php_stream_bucket_delref(bucket TSRMLS_CC);
/* reset these because despite the error the filter may be used again */
data->strm.next_in = data->inbuf;
data->strm.avail_in = 0;
return PSFS_ERR_FATAL;
}
desired -= data->strm.avail_in; /* desired becomes what we consumed this round through */
data->strm.next_in = data->inbuf;
data->strm.avail_in = 0;
bin += desired;
if (data->strm.avail_out < data->outbuf_len) {
php_stream_bucket *out_bucket;
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
out_bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0 TSRMLS_CC);
php_stream_bucket_append(buckets_out, out_bucket TSRMLS_CC);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
} else if (status == Z_STREAM_END && data->strm.avail_out >= data->outbuf_len) {
/* no more data to decompress, and nothing was spat out */
php_stream_bucket_delref(bucket TSRMLS_CC);
return PSFS_PASS_ON;
}
}
consumed += bucket->buflen;
php_stream_bucket_delref(bucket TSRMLS_CC);
}
if (!data->finished && flags & PSFS_FLAG_FLUSH_CLOSE) {
/* Spit it out! */
status = Z_OK;
while (status == Z_OK) {
status = inflate(&(data->strm), Z_FINISH);
if (data->strm.avail_out < data->outbuf_len) {
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0 TSRMLS_CC);
php_stream_bucket_append(buckets_out, bucket TSRMLS_CC);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
}
}
}
if (bytes_consumed) {
*bytes_consumed = consumed;
}
return exit_status;
}
static php_stream_filter_status_t php_bz2_decompress_filter(
php_stream *stream,
php_stream_filter *thisfilter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed,
int flags
)
{
php_bz2_filter_data *data;
php_stream_bucket *bucket;
size_t consumed = 0;
int status;
php_stream_filter_status_t exit_status = PSFS_FEED_ME;
bz_stream *streamp;
if (!Z_PTR(thisfilter->abstract)) {
/* Should never happen */
return PSFS_ERR_FATAL;
}
data = (php_bz2_filter_data *)Z_PTR(thisfilter->abstract);
streamp = &(data->strm);
while (buckets_in->head) {
size_t bin = 0, desired;
bucket = php_stream_bucket_make_writeable(buckets_in->head);
while (bin < bucket->buflen) {
if (data->status == PHP_BZ2_UNITIALIZED) {
status = BZ2_bzDecompressInit(streamp, 0, data->small_footprint);
if (BZ_OK != status) {
php_stream_bucket_delref(bucket);
return PSFS_ERR_FATAL;
}
data->status = PHP_BZ2_RUNNING;
}
if (data->status != PHP_BZ2_RUNNING) {
consumed += bucket->buflen;
break;
}
desired = bucket->buflen - bin;
if (desired > data->inbuf_len) {
desired = data->inbuf_len;
}
memcpy(data->strm.next_in, bucket->buf + bin, desired);
data->strm.avail_in = desired;
status = BZ2_bzDecompress(&(data->strm));
if (status == BZ_STREAM_END) {
BZ2_bzDecompressEnd(&(data->strm));
if (data->expect_concatenated) {
data->status = PHP_BZ2_UNITIALIZED;
} else {
data->status = PHP_BZ2_FINISHED;
}
} else if (status != BZ_OK) {
/* Something bad happened */
php_stream_bucket_delref(bucket);
return PSFS_ERR_FATAL;
}
desired -= data->strm.avail_in; /* desired becomes what we consumed this round through */
data->strm.next_in = data->inbuf;
data->strm.avail_in = 0;
consumed += desired;
bin += desired;
if (data->strm.avail_out < data->outbuf_len) {
php_stream_bucket *out_bucket;
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
out_bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0);
php_stream_bucket_append(buckets_out, out_bucket);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
} else if (status == BZ_STREAM_END && data->strm.avail_out >= data->outbuf_len) {
/* no more data to decompress, and nothing was spat out */
php_stream_bucket_delref(bucket);
return PSFS_PASS_ON;
}
}
php_stream_bucket_delref(bucket);
}
if ((data->status == PHP_BZ2_RUNNING) && (flags & PSFS_FLAG_FLUSH_CLOSE)) {
/* Spit it out! */
status = BZ_OK;
while (status == BZ_OK) {
status = BZ2_bzDecompress(&(data->strm));
if (data->strm.avail_out < data->outbuf_len) {
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0);
php_stream_bucket_append(buckets_out, bucket);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
} else if (status == BZ_OK) {
break;
}
}
}
if (bytes_consumed) {
*bytes_consumed = consumed;
}
return exit_status;
}
static php_stream_filter_status_t php_bz2_compress_filter(
php_stream *stream,
php_stream_filter *thisfilter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed,
int flags
)
{
php_bz2_filter_data *data;
php_stream_bucket *bucket;
size_t consumed = 0;
int status;
php_stream_filter_status_t exit_status = PSFS_FEED_ME;
if (!Z_PTR(thisfilter->abstract)) {
/* Should never happen */
return PSFS_ERR_FATAL;
}
data = (php_bz2_filter_data *)Z_PTR(thisfilter->abstract);
while (buckets_in->head) {
size_t bin = 0, desired;
bucket = php_stream_bucket_make_writeable(buckets_in->head);
while (bin < bucket->buflen) {
desired = bucket->buflen - bin;
if (desired > data->inbuf_len) {
desired = data->inbuf_len;
}
memcpy(data->strm.next_in, bucket->buf + bin, desired);
data->strm.avail_in = desired;
status = BZ2_bzCompress(&(data->strm), flags & PSFS_FLAG_FLUSH_CLOSE ? BZ_FINISH : (flags & PSFS_FLAG_FLUSH_INC ? BZ_FLUSH : BZ_RUN));
if (status != BZ_RUN_OK && status != BZ_FLUSH_OK && status != BZ_FINISH_OK) {
/* Something bad happened */
php_stream_bucket_delref(bucket);
return PSFS_ERR_FATAL;
}
desired -= data->strm.avail_in; /* desired becomes what we consumed this round through */
data->strm.next_in = data->inbuf;
data->strm.avail_in = 0;
consumed += desired;
bin += desired;
if (data->strm.avail_out < data->outbuf_len) {
php_stream_bucket *out_bucket;
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
out_bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0);
php_stream_bucket_append(buckets_out, out_bucket);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
}
}
php_stream_bucket_delref(bucket);
}
if (flags & PSFS_FLAG_FLUSH_CLOSE) {
/* Spit it out! */
status = BZ_FINISH_OK;
while (status == BZ_FINISH_OK) {
status = BZ2_bzCompress(&(data->strm), BZ_FINISH);
if (data->strm.avail_out < data->outbuf_len) {
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0);
php_stream_bucket_append(buckets_out, bucket);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
}
}
}
if (bytes_consumed) {
*bytes_consumed = consumed;
}
return exit_status;
}
static php_stream_filter_status_t php_mcrypt_filter(
php_stream *stream,
php_stream_filter *thisfilter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed,
int flags TSRMLS_DC)
{
php_mcrypt_filter_data *data;
php_stream_bucket *bucket;
size_t consumed = 0;
php_stream_filter_status_t exit_status = PSFS_FEED_ME;
if (!thisfilter || !thisfilter->abstract) {
/* Should never happen */
return PSFS_ERR_FATAL;
}
data = (php_mcrypt_filter_data *)(thisfilter->abstract);
while(buckets_in->head) {
bucket = buckets_in->head;
consumed += bucket->buflen;
if (data->blocksize) {
/* Blockmode cipher */
char *outchunk;
int chunklen = bucket->buflen + data->block_used, n;
php_stream_bucket *newbucket;
outchunk = pemalloc(chunklen, data->persistent);
if (data->block_used) {
memcpy(outchunk, data->block_buffer, data->block_used);
}
memcpy(outchunk + data->block_used, bucket->buf, bucket->buflen);
for(n=0; (n + data->blocksize) <= chunklen; n += data->blocksize) {
if (data->encrypt) {
mcrypt_generic(data->module, outchunk + n, data->blocksize);
} else {
mdecrypt_generic(data->module, outchunk + n, data->blocksize);
}
}
data->block_used = chunklen - n;
memcpy(data->block_buffer, outchunk + n, data->block_used);
newbucket = php_stream_bucket_new(stream, outchunk, n, 1, data->persistent TSRMLS_CC);
php_stream_bucket_append(buckets_out, newbucket TSRMLS_CC);
exit_status = PSFS_PASS_ON;
php_stream_bucket_unlink(bucket TSRMLS_CC);
php_stream_bucket_delref(bucket TSRMLS_CC);
} else {
/* Stream cipher */
php_stream_bucket_make_writeable(bucket TSRMLS_CC);
if (data->encrypt) {
mcrypt_generic(data->module, bucket->buf, bucket->buflen);
} else {
mdecrypt_generic(data->module, bucket->buf, bucket->buflen);
}
php_stream_bucket_append(buckets_out, bucket TSRMLS_CC);
exit_status = PSFS_PASS_ON;
}
}
if ((flags & PSFS_FLAG_FLUSH_CLOSE) && data->blocksize && data->block_used) {
php_stream_bucket *newbucket;
memset(data->block_buffer + data->block_used, 0, data->blocksize - data->block_used);
if (data->encrypt) {
mcrypt_generic(data->module, data->block_buffer, data->blocksize);
} else {
mdecrypt_generic(data->module, data->block_buffer, data->blocksize);
}
newbucket = php_stream_bucket_new(stream, data->block_buffer, data->blocksize, 0, data->persistent TSRMLS_CC);
php_stream_bucket_append(buckets_out, newbucket TSRMLS_CC);
exit_status = PSFS_PASS_ON;
}
if (bytes_consumed) {
*bytes_consumed = consumed;
}
return exit_status;
}
static php_stream_filter_status_t php_zlib_inflate_filter(
php_stream *stream,
php_stream_filter *thisfilter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed,
int flags
TSRMLS_DC)
{
php_zlib_filter_data *data;
php_stream_bucket *bucket;
size_t consumed = 0, original_out, original_in;
int status;
php_stream_filter_status_t exit_status = PSFS_FEED_ME;
z_stream *streamp;
if (!thisfilter || !thisfilter->abstract) {
/* Should never happen */
return PSFS_ERR_FATAL;
}
data = (php_zlib_filter_data *)(thisfilter->abstract);
streamp = &(data->strm);
original_in = data->strm.total_in;
original_out = data->strm.total_out;
while (buckets_in->head) {
size_t bin = 0, desired;
bucket = php_stream_bucket_make_writeable(buckets_in->head TSRMLS_CC);
while (bin < bucket->buflen) {
desired = bucket->buflen - bin;
if (desired > data->inbuf_len) {
desired = data->inbuf_len;
}
memcpy(data->strm.next_in, bucket->buf + bin, desired);
data->strm.avail_in = desired;
status = inflate(&(data->strm), flags & PSFS_FLAG_FLUSH_CLOSE ? Z_FINISH : Z_SYNC_FLUSH);
if (status != Z_OK && status != Z_STREAM_END) {
/* Something bad happened */
php_stream_bucket_delref(bucket TSRMLS_CC);
return PSFS_ERR_FATAL;
}
desired -= data->strm.avail_in; /* desired becomes what we consumed this round through */
data->strm.next_in = data->inbuf;
data->strm.avail_in = 0;
consumed += desired;
bin += desired;
if (!desired) {
flags |= PSFS_FLAG_FLUSH_CLOSE;
break;
}
if (data->strm.avail_out < data->outbuf_len) {
php_stream_bucket *out_bucket;
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
out_bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0 TSRMLS_CC);
php_stream_bucket_append(buckets_out, out_bucket TSRMLS_CC);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
}
}
php_stream_bucket_delref(bucket TSRMLS_CC);
}
if (flags & PSFS_FLAG_FLUSH_CLOSE) {
/* Spit it out! */
status = Z_OK;
while (status == Z_OK) {
status = inflate(&(data->strm), Z_FINISH);
if (data->strm.avail_out < data->outbuf_len) {
size_t bucketlen = data->outbuf_len - data->strm.avail_out;
bucket = php_stream_bucket_new(stream, estrndup(data->outbuf, bucketlen), bucketlen, 1, 0 TSRMLS_CC);
php_stream_bucket_append(buckets_out, bucket TSRMLS_CC);
data->strm.avail_out = data->outbuf_len;
data->strm.next_out = data->outbuf;
exit_status = PSFS_PASS_ON;
}
}
}
if (bytes_consumed) {
*bytes_consumed = consumed;
}
return exit_status;
}