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Diffstat (limited to 'ext/mcrypt/mcrypt_filter.c')
-rw-r--r--ext/mcrypt/mcrypt_filter.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/ext/mcrypt/mcrypt_filter.c b/ext/mcrypt/mcrypt_filter.c
deleted file mode 100644
index fc5aefbbe4..0000000000
--- a/ext/mcrypt/mcrypt_filter.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- +----------------------------------------------------------------------+
- | PHP Version 7 |
- +----------------------------------------------------------------------+
- | Copyright (c) 1997-2016 The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.01 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.php.net/license/3_01.txt |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Author: Sara Golemon <pollita@php.net> |
- +----------------------------------------------------------------------+
-
- $Id$
-*/
-
-#include "php.h"
-
-#include "php_mcrypt_filter.h"
-#include "php_ini.h"
-#include <mcrypt.h>
-
-typedef struct _php_mcrypt_filter_data {
- MCRYPT module;
- char encrypt;
- int blocksize;
- char *block_buffer;
- int block_used;
- char persistent;
-} php_mcrypt_filter_data;
-
-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)
-{
- 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 || !Z_PTR(thisfilter->abstract)) {
- /* Should never happen */
- return PSFS_ERR_FATAL;
- }
-
- data = (php_mcrypt_filter_data *)(Z_PTR(thisfilter->abstract));
- while(buckets_in->head) {
- bucket = buckets_in->head;
-
- consumed += bucket->buflen;
-
- if (data->blocksize) {
- /* Blockmode cipher */
- char *outchunk;
- int chunklen = (int)(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);
- php_stream_bucket_append(buckets_out, newbucket);
-
- exit_status = PSFS_PASS_ON;
-
- php_stream_bucket_unlink(bucket);
- php_stream_bucket_delref(bucket);
- } else {
- /* Stream cipher */
- php_stream_bucket_make_writeable(bucket);
- if (data->encrypt) {
- mcrypt_generic(data->module, bucket->buf, (int)bucket->buflen);
- } else {
- mdecrypt_generic(data->module, bucket->buf, (int)bucket->buflen);
- }
- php_stream_bucket_append(buckets_out, bucket);
-
- 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);
- php_stream_bucket_append(buckets_out, newbucket);
-
- exit_status = PSFS_PASS_ON;
- }
-
- if (bytes_consumed) {
- *bytes_consumed = consumed;
- }
-
- return exit_status;
-}
-
-static void php_mcrypt_filter_dtor(php_stream_filter *thisfilter)
-{
- if (thisfilter && Z_PTR(thisfilter->abstract)) {
- php_mcrypt_filter_data *data = (php_mcrypt_filter_data*) Z_PTR(thisfilter->abstract);
-
- if (data->block_buffer) {
- pefree(data->block_buffer, data->persistent);
- }
-
- mcrypt_generic_deinit(data->module);
- mcrypt_module_close(data->module);
-
- pefree(data, data->persistent);
- }
-}
-
-static php_stream_filter_ops php_mcrypt_filter_ops = {
- php_mcrypt_filter,
- php_mcrypt_filter_dtor,
- "mcrypt.*"
-};
-
-/* {{{ php_mcrypt_filter_create
- * Instantiate mcrypt filter
- */
-static php_stream_filter *php_mcrypt_filter_create(const char *filtername, zval *filterparams, int persistent)
-{
- int encrypt = 1, iv_len, key_len, keyl, result;
- const char *cipher = filtername + sizeof("mcrypt.") - 1;
- zval *tmpzval;
- MCRYPT mcrypt_module;
- char *iv = NULL, *key = NULL;
- char *algo_dir = INI_STR("mcrypt.algorithms_dir");
- char *mode_dir = INI_STR("mcrypt.modes_dir");
- char *mode = "cbc";
- php_mcrypt_filter_data *data;
-
- php_error_docref(NULL, E_DEPRECATED, "mcrypt and mdecrypt stream filters have been deprecated");
-
- if (strncasecmp(filtername, "mdecrypt.", sizeof("mdecrypt.") - 1) == 0) {
- encrypt = 0;
- cipher += sizeof("de") - 1;
- } else if (strncasecmp(filtername, "mcrypt.", sizeof("mcrypt.") - 1) != 0) {
- /* Should never happen */
- return NULL;
- }
-
- if (!filterparams || Z_TYPE_P(filterparams) != IS_ARRAY) {
- php_error_docref(NULL, E_WARNING, "Filter parameters for %s must be an array", filtername);
- return NULL;
- }
-
- if ((tmpzval = zend_hash_str_find(Z_ARRVAL_P(filterparams), ZEND_STRL("mode")))) {
- if (Z_TYPE_P(tmpzval) == IS_STRING) {
- mode = Z_STRVAL_P(tmpzval);
- } else {
- php_error_docref(NULL, E_WARNING, "mode is not a string, ignoring");
- }
- }
-
- if ((tmpzval=zend_hash_str_find(Z_ARRVAL_P(filterparams), ZEND_STRL("algorithms_dir")))) {
- if (Z_TYPE_P(tmpzval) == IS_STRING) {
- algo_dir = Z_STRVAL_P(tmpzval);
- } else {
- php_error_docref(NULL, E_WARNING, "algorithms_dir is not a string, ignoring");
- }
- }
-
- if ((tmpzval=zend_hash_str_find(Z_ARRVAL_P(filterparams), ZEND_STRL("modes_dir")))) {
- if (Z_TYPE_P(tmpzval) == IS_STRING) {
- mode_dir = Z_STRVAL_P(tmpzval);
- } else {
- php_error_docref(NULL, E_WARNING, "modes_dir is not a string, ignoring");
- }
- }
-
- if ((tmpzval = zend_hash_str_find(Z_ARRVAL_P(filterparams), ZEND_STRL("key"))) &&
- Z_TYPE_P(tmpzval) == IS_STRING) {
- key = Z_STRVAL_P(tmpzval);
- key_len = (int)Z_STRLEN_P(tmpzval);
- } else {
- php_error_docref(NULL, E_WARNING, "key not specified or is not a string");
- return NULL;
- }
-
- mcrypt_module = mcrypt_module_open((char *)cipher, algo_dir, mode, mode_dir);
- if (mcrypt_module == MCRYPT_FAILED) {
- php_error_docref(NULL, E_WARNING, "Could not open encryption module");
- return NULL;
- }
- iv_len = mcrypt_enc_get_iv_size(mcrypt_module);
- keyl = mcrypt_enc_get_key_size(mcrypt_module);
- if (keyl < key_len) {
- key_len = keyl;
- }
-
- if (!(tmpzval = zend_hash_str_find(Z_ARRVAL_P(filterparams), ZEND_STRL("iv"))) ||
- Z_TYPE_P(tmpzval) != IS_STRING) {
- php_error_docref(NULL, E_WARNING, "Filter parameter[iv] not provided or not of type: string");
- mcrypt_module_close(mcrypt_module);
- return NULL;
- }
-
- iv = emalloc(iv_len + 1);
- if ((size_t)iv_len <= Z_STRLEN_P(tmpzval)) {
- memcpy(iv, Z_STRVAL_P(tmpzval), iv_len);
- } else {
- memcpy(iv, Z_STRVAL_P(tmpzval), Z_STRLEN_P(tmpzval));
- memset(iv + Z_STRLEN_P(tmpzval), 0, iv_len - Z_STRLEN_P(tmpzval));
- }
-
- result = mcrypt_generic_init(mcrypt_module, key, key_len, iv);
- efree(iv);
- if (result < 0) {
- switch (result) {
- case -3:
- php_error_docref(NULL, E_WARNING, "Key length incorrect");
- break;
- case -4:
- php_error_docref(NULL, E_WARNING, "Memory allocation error");
- break;
- case -1:
- default:
- php_error_docref(NULL, E_WARNING, "Unknown error");
- break;
- }
- mcrypt_module_close(mcrypt_module);
- return NULL;
- }
-
- data = pemalloc(sizeof(php_mcrypt_filter_data), persistent);
- data->module = mcrypt_module;
- data->encrypt = encrypt;
- if (mcrypt_enc_is_block_mode(mcrypt_module)) {
- data->blocksize = mcrypt_enc_get_block_size(mcrypt_module);
- data->block_buffer = pemalloc(data->blocksize, persistent);
- } else {
- data->blocksize = 0;
- data->block_buffer = NULL;
- }
- data->block_used = 0;
- data->persistent = persistent;
-
- return php_stream_filter_alloc(&php_mcrypt_filter_ops, data, persistent);
-}
-/* }}} */
-
-php_stream_filter_factory php_mcrypt_filter_factory = {
- php_mcrypt_filter_create
-};
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim600: noet sw=4 ts=4 fdm=marker
- * vim<600: noet sw=4 ts=4
- */
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