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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 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. |
+----------------------------------------------------------------------+
| Authors: Bob Weinand <bwoebi@php.net> |
+----------------------------------------------------------------------+
*/
#include "phpdbg_webdata_transfer.h"
#include "ext/standard/php_var.h"
static int phpdbg_is_auto_global(char *name, int len) {
int ret;
zend_string *str = zend_string_init(name, len, 0);
ret = zend_is_auto_global(str);
zend_string_free(str);
return ret;
}
PHPDBG_API void phpdbg_webdata_compress(char **msg, size_t *len) {
zval array;
HashTable *ht;
zval zv[9] = {{{0}}};
array_init(&array);
ht = Z_ARRVAL(array);
/* fetch superglobals */
{
phpdbg_is_auto_global(ZEND_STRL("GLOBALS"));
/* might be JIT */
phpdbg_is_auto_global(ZEND_STRL("_ENV"));
phpdbg_is_auto_global(ZEND_STRL("_SERVER"));
phpdbg_is_auto_global(ZEND_STRL("_REQUEST"));
array_init(&zv[1]);
zend_hash_copy(Z_ARRVAL(zv[1]), &EG(symbol_table), NULL);
Z_ARRVAL(zv[1])->pDestructor = NULL; /* we're operating on a copy! Don't double free zvals */
zend_hash_str_del(Z_ARRVAL(zv[1]), ZEND_STRL("GLOBALS")); /* do not use the reference to itself in json */
zend_hash_str_add(ht, ZEND_STRL("GLOBALS"), &zv[1]);
}
/* save php://input */
{
php_stream *stream;
zend_string *str;
stream = php_stream_temp_create_ex(TEMP_STREAM_DEFAULT, SAPI_POST_BLOCK_SIZE, PG(upload_tmp_dir));
if ((str = php_stream_copy_to_mem(stream, PHP_STREAM_COPY_ALL, 0))) {
ZVAL_STR(&zv[2], str);
} else {
ZVAL_EMPTY_STRING(&zv[2]);
}
Z_SET_REFCOUNT(zv[2], 1);
zend_hash_str_add(ht, ZEND_STRL("input"), &zv[2]);
}
/* change sapi name */
{
if (sapi_module.name) {
ZVAL_STRING(&zv[6], sapi_module.name);
} else {
Z_TYPE_INFO(zv[6]) = IS_NULL;
}
zend_hash_str_add(ht, ZEND_STRL("sapi_name"), &zv[6]);
Z_SET_REFCOUNT(zv[6], 1);
}
/* handle modules / extensions */
{
zend_module_entry *module;
zend_extension *extension;
zend_llist_position pos;
array_init(&zv[7]);
ZEND_HASH_FOREACH_PTR(&module_registry, module) {
zval *value = ecalloc(sizeof(zval), 1);
ZVAL_STRING(value, module->name);
zend_hash_next_index_insert(Z_ARRVAL(zv[7]), value);
} ZEND_HASH_FOREACH_END();
zend_hash_str_add(ht, ZEND_STRL("modules"), &zv[7]);
array_init(&zv[8]);
extension = (zend_extension *) zend_llist_get_first_ex(&zend_extensions, &pos);
while (extension) {
zval *value = ecalloc(sizeof(zval), 1);
ZVAL_STRING(value, extension->name);
zend_hash_next_index_insert(Z_ARRVAL(zv[8]), value);
extension = (zend_extension *) zend_llist_get_next_ex(&zend_extensions, &pos);
}
zend_hash_str_add(ht, ZEND_STRL("extensions"), &zv[8]);
}
/* switch cwd */
if (SG(options) & SAPI_OPTION_NO_CHDIR) {
char *ret = NULL;
char path[MAXPATHLEN];
#if HAVE_GETCWD
ret = VCWD_GETCWD(path, MAXPATHLEN);
#elif HAVE_GETWD
ret = VCWD_GETWD(path);
#endif
if (ret) {
ZVAL_STRING(&zv[5], path);
Z_SET_REFCOUNT(zv[5], 1);
zend_hash_str_add(ht, ZEND_STRL("cwd"), &zv[5]);
}
}
/* get system ini entries */
{
zend_ini_entry *ini_entry;
array_init(&zv[3]);
ZEND_HASH_FOREACH_PTR(EG(ini_directives), ini_entry) {
zval *value = ecalloc(sizeof(zval), 1);
if (ini_entry->modified) {
if (!ini_entry->orig_value) {
efree(value);
continue;
}
ZVAL_STR(value, ini_entry->orig_value);
} else {
if (!ini_entry->value) {
efree(value);
continue;
}
ZVAL_STR(value, ini_entry->value);
}
zend_hash_add(Z_ARRVAL(zv[3]), ini_entry->name, value);
} ZEND_HASH_FOREACH_END();
zend_hash_str_add(ht, ZEND_STRL("systemini"), &zv[3]);
}
/* get perdir ini entries */
if (EG(modified_ini_directives)) {
zend_ini_entry *ini_entry;
array_init(&zv[4]);
ZEND_HASH_FOREACH_PTR(EG(ini_directives), ini_entry) {
zval *value = ecalloc(sizeof(zval), 1);
if (!ini_entry->value) {
efree(value);
continue;
}
ZVAL_STR(value, ini_entry->value);
zend_hash_add(Z_ARRVAL(zv[4]), ini_entry->name, value);
} ZEND_HASH_FOREACH_END();
zend_hash_str_add(ht, ZEND_STRL("userini"), &zv[4]);
}
/* encode data */
{
php_serialize_data_t var_hash;
smart_str buf = {0};
PHP_VAR_SERIALIZE_INIT(var_hash);
php_var_serialize(&buf, &array, &var_hash);
PHP_VAR_SERIALIZE_DESTROY(var_hash);
*msg = ZSTR_VAL(buf.s);
*len = ZSTR_LEN(buf.s);
}
zend_array_destroy(Z_ARR(array));
}