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 PHP: Test and Code Coverage Analysis
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LCOV - code coverage report
Current view: top level - ext/filter - filter.c (source / functions) Hit Total Coverage
Test: PHP Code Coverage Lines: 332 366 90.7 %
Date: 2015-01-26 Functions: 22 22 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :   +----------------------------------------------------------------------+
       3             :   | PHP Version 7                                                        |
       4             :   +----------------------------------------------------------------------+
       5             :   | Copyright (c) 1997-2015 The PHP Group                                |
       6             :   +----------------------------------------------------------------------+
       7             :   | This source file is subject to version 3.01 of the PHP license,      |
       8             :   | that is bundled with this package in the file LICENSE, and is        |
       9             :   | available through the world-wide-web at the following url:           |
      10             :   | http://www.php.net/license/3_01.txt                                  |
      11             :   | If you did not receive a copy of the PHP license and are unable to   |
      12             :   | obtain it through the world-wide-web, please send a note to          |
      13             :   | license@php.net so we can mail you a copy immediately.               |
      14             :   +----------------------------------------------------------------------+
      15             :   | Authors: Rasmus Lerdorf <rasmus@php.net>                             |
      16             :   |          Derick Rethans <derick@php.net>                             |
      17             :   |          Pierre-A. Joye <pierre@php.net>                             |
      18             :   |          Ilia Alshanetsky <iliaa@php.net>                            |
      19             :   +----------------------------------------------------------------------+
      20             : */
      21             : 
      22             : /* $Id: 85cfbf091395a26b34441a4ddc9e03b3508d448f $ */
      23             : 
      24             : #ifdef HAVE_CONFIG_H
      25             : #include "config.h"
      26             : #endif
      27             : 
      28             : #include "php_filter.h"
      29             : 
      30             : ZEND_DECLARE_MODULE_GLOBALS(filter)
      31             : 
      32             : #include "filter_private.h"
      33             : 
      34             : typedef struct filter_list_entry {
      35             :         const char *name;
      36             :         int    id;
      37             :         void (*function)(PHP_INPUT_FILTER_PARAM_DECL);
      38             : } filter_list_entry;
      39             : 
      40             : /* {{{ filter_list */
      41             : static const filter_list_entry filter_list[] = {
      42             :         { "int",             FILTER_VALIDATE_INT,           php_filter_int             },
      43             :         { "boolean",         FILTER_VALIDATE_BOOLEAN,       php_filter_boolean         },
      44             :         { "float",           FILTER_VALIDATE_FLOAT,         php_filter_float           },
      45             : 
      46             :         { "validate_regexp", FILTER_VALIDATE_REGEXP,        php_filter_validate_regexp },
      47             :         { "validate_domain", FILTER_VALIDATE_DOMAIN,        php_filter_validate_domain },
      48             :         { "validate_url",    FILTER_VALIDATE_URL,           php_filter_validate_url    },
      49             :         { "validate_email",  FILTER_VALIDATE_EMAIL,         php_filter_validate_email  },
      50             :         { "validate_ip",     FILTER_VALIDATE_IP,            php_filter_validate_ip     },
      51             :         { "validate_mac",    FILTER_VALIDATE_MAC,           php_filter_validate_mac    },
      52             : 
      53             :         { "string",          FILTER_SANITIZE_STRING,        php_filter_string          },
      54             :         { "stripped",        FILTER_SANITIZE_STRING,        php_filter_string          },
      55             :         { "encoded",         FILTER_SANITIZE_ENCODED,       php_filter_encoded         },
      56             :         { "special_chars",   FILTER_SANITIZE_SPECIAL_CHARS, php_filter_special_chars   },
      57             :         { "full_special_chars",   FILTER_SANITIZE_FULL_SPECIAL_CHARS, php_filter_full_special_chars   },
      58             :         { "unsafe_raw",      FILTER_UNSAFE_RAW,             php_filter_unsafe_raw      },
      59             :         { "email",           FILTER_SANITIZE_EMAIL,         php_filter_email           },
      60             :         { "url",             FILTER_SANITIZE_URL,           php_filter_url             },
      61             :         { "number_int",      FILTER_SANITIZE_NUMBER_INT,    php_filter_number_int      },
      62             :         { "number_float",    FILTER_SANITIZE_NUMBER_FLOAT,  php_filter_number_float    },
      63             :         { "magic_quotes",    FILTER_SANITIZE_MAGIC_QUOTES,  php_filter_magic_quotes    },
      64             : 
      65             :         { "callback",        FILTER_CALLBACK,               php_filter_callback        },
      66             : };
      67             : /* }}} */
      68             : 
      69             : #ifndef PARSE_ENV
      70             : #define PARSE_ENV 4
      71             : #endif
      72             : 
      73             : #ifndef PARSE_SERVER
      74             : #define PARSE_SERVER 5
      75             : #endif
      76             : 
      77             : #ifndef PARSE_SESSION
      78             : #define PARSE_SESSION 6
      79             : #endif
      80             : 
      81             : static unsigned int php_sapi_filter(int arg, char *var, char **val, size_t val_len, size_t *new_val_len);
      82             : static unsigned int php_sapi_filter_init(void);
      83             : 
      84             : /* {{{ arginfo */
      85             : ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_input, 0, 0, 2)
      86             :         ZEND_ARG_INFO(0, type)
      87             :         ZEND_ARG_INFO(0, variable_name)
      88             :         ZEND_ARG_INFO(0, filter)
      89             :         ZEND_ARG_INFO(0, options)
      90             : ZEND_END_ARG_INFO()
      91             : 
      92             : ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_var, 0, 0, 1)
      93             :         ZEND_ARG_INFO(0, variable)
      94             :         ZEND_ARG_INFO(0, filter)
      95             :         ZEND_ARG_INFO(0, options)
      96             : ZEND_END_ARG_INFO()
      97             : 
      98             : ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_input_array, 0, 0, 1)
      99             :         ZEND_ARG_INFO(0, type)
     100             :         ZEND_ARG_INFO(0, definition)
     101             :         ZEND_ARG_INFO(0, add_empty)
     102             : ZEND_END_ARG_INFO()
     103             : 
     104             : ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_var_array, 0, 0, 1)
     105             :         ZEND_ARG_INFO(0, data)
     106             :         ZEND_ARG_INFO(0, definition)
     107             :         ZEND_ARG_INFO(0, add_empty)
     108             : ZEND_END_ARG_INFO()
     109             : 
     110             : ZEND_BEGIN_ARG_INFO(arginfo_filter_list, 0)
     111             : ZEND_END_ARG_INFO()
     112             : 
     113             : ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_has_var, 0, 0, 2)
     114             :         ZEND_ARG_INFO(0, type)
     115             :         ZEND_ARG_INFO(0, variable_name)
     116             : ZEND_END_ARG_INFO()
     117             : 
     118             : ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_id, 0, 0, 1)
     119             :         ZEND_ARG_INFO(0, filtername)
     120             : ZEND_END_ARG_INFO()
     121             : /* }}} */
     122             : 
     123             : /* {{{ filter_functions[]
     124             :  */
     125             : static const zend_function_entry filter_functions[] = {
     126             :         PHP_FE(filter_input,            arginfo_filter_input)
     127             :         PHP_FE(filter_var,              arginfo_filter_var)
     128             :         PHP_FE(filter_input_array,      arginfo_filter_input_array)
     129             :         PHP_FE(filter_var_array,        arginfo_filter_var_array)
     130             :         PHP_FE(filter_list,             arginfo_filter_list)
     131             :         PHP_FE(filter_has_var,          arginfo_filter_has_var)
     132             :         PHP_FE(filter_id,               arginfo_filter_id)
     133             :         PHP_FE_END
     134             : };
     135             : /* }}} */
     136             : 
     137             : /* {{{ filter_module_entry
     138             :  */
     139             : zend_module_entry filter_module_entry = {
     140             : #if ZEND_MODULE_API_NO >= 20010901
     141             :         STANDARD_MODULE_HEADER,
     142             : #endif
     143             :         "filter",
     144             :         filter_functions,
     145             :         PHP_MINIT(filter),
     146             :         PHP_MSHUTDOWN(filter),
     147             :         NULL,
     148             :         PHP_RSHUTDOWN(filter),
     149             :         PHP_MINFO(filter),
     150             :         "0.11.0",
     151             :         STANDARD_MODULE_PROPERTIES
     152             : };
     153             : /* }}} */
     154             : 
     155             : #ifdef COMPILE_DL_FILTER
     156             : #ifdef ZTS
     157             : ZEND_TSRMLS_CACHE_DEFINE;
     158             : #endif
     159             : ZEND_GET_MODULE(filter)
     160             : #endif
     161             : 
     162       20786 : static PHP_INI_MH(UpdateDefaultFilter) /* {{{ */
     163             : {
     164       20786 :         int i, size = sizeof(filter_list) / sizeof(filter_list_entry);
     165             : 
     166      311770 :         for (i = 0; i < size; ++i) {
     167      311770 :                 if ((strcasecmp(new_value->val, filter_list[i].name) == 0)) {
     168       20786 :                         IF_G(default_filter) = filter_list[i].id;
     169       20786 :                         return SUCCESS;
     170             :                 }
     171             :         }
     172             :         /* Fallback to the default filter */
     173           0 :         IF_G(default_filter) = FILTER_DEFAULT;
     174           0 :         return SUCCESS;
     175             : }
     176             : /* }}} */
     177             : 
     178             : /* {{{ PHP_INI
     179             :  */
     180       20786 : static PHP_INI_MH(OnUpdateFlags)
     181             : {
     182       20786 :         if (!new_value) {
     183       20780 :                 IF_G(default_filter_flags) = FILTER_FLAG_NO_ENCODE_QUOTES;
     184             :         } else {
     185           6 :                 IF_G(default_filter_flags) = atoi(new_value->val);
     186             :         }
     187       20786 :         return SUCCESS;
     188             : }
     189             : 
     190             : PHP_INI_BEGIN()
     191             :         STD_PHP_INI_ENTRY("filter.default",   "unsafe_raw", PHP_INI_SYSTEM|PHP_INI_PERDIR, UpdateDefaultFilter, default_filter, zend_filter_globals, filter_globals)
     192             :         PHP_INI_ENTRY("filter.default_flags", NULL,     PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateFlags)
     193             : PHP_INI_END()
     194             : /* }}} */
     195             : 
     196       20786 : static void php_filter_init_globals(zend_filter_globals *filter_globals) /* {{{ */
     197             : {
     198             : #if defined(COMPILE_DL_FILTER) && defined(ZTS)
     199             : ZEND_TSRMLS_CACHE_UPDATE;
     200             : #endif
     201       20786 :         ZVAL_UNDEF(&filter_globals->post_array);
     202       20786 :         ZVAL_UNDEF(&filter_globals->get_array);
     203       20786 :         ZVAL_UNDEF(&filter_globals->cookie_array);
     204       20786 :         ZVAL_UNDEF(&filter_globals->env_array);
     205       20786 :         ZVAL_UNDEF(&filter_globals->server_array);
     206       20786 :         ZVAL_UNDEF(&filter_globals->session_array);
     207       20786 :         filter_globals->default_filter = FILTER_DEFAULT;
     208       20786 : }
     209             : /* }}} */
     210             : 
     211             : #define PARSE_REQUEST 99
     212             : 
     213             : /* {{{ PHP_MINIT_FUNCTION
     214             :  */
     215       20786 : PHP_MINIT_FUNCTION(filter)
     216             : {
     217       20786 :         ZEND_INIT_MODULE_GLOBALS(filter, php_filter_init_globals, NULL);
     218             : 
     219       20786 :         REGISTER_INI_ENTRIES();
     220             : 
     221       20786 :         REGISTER_LONG_CONSTANT("INPUT_POST",  PARSE_POST,     CONST_CS | CONST_PERSISTENT);
     222       20786 :         REGISTER_LONG_CONSTANT("INPUT_GET",           PARSE_GET,              CONST_CS | CONST_PERSISTENT);
     223       20786 :         REGISTER_LONG_CONSTANT("INPUT_COOKIE",        PARSE_COOKIE,   CONST_CS | CONST_PERSISTENT);
     224       20786 :         REGISTER_LONG_CONSTANT("INPUT_ENV",           PARSE_ENV,              CONST_CS | CONST_PERSISTENT);
     225       20786 :         REGISTER_LONG_CONSTANT("INPUT_SERVER",        PARSE_SERVER,   CONST_CS | CONST_PERSISTENT);
     226       20786 :         REGISTER_LONG_CONSTANT("INPUT_SESSION", PARSE_SESSION,        CONST_CS | CONST_PERSISTENT);
     227       20786 :         REGISTER_LONG_CONSTANT("INPUT_REQUEST", PARSE_REQUEST,        CONST_CS | CONST_PERSISTENT);
     228             : 
     229       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_NONE", FILTER_FLAG_NONE, CONST_CS | CONST_PERSISTENT);
     230             : 
     231       20786 :         REGISTER_LONG_CONSTANT("FILTER_REQUIRE_SCALAR", FILTER_REQUIRE_SCALAR, CONST_CS | CONST_PERSISTENT);
     232       20786 :         REGISTER_LONG_CONSTANT("FILTER_REQUIRE_ARRAY", FILTER_REQUIRE_ARRAY, CONST_CS | CONST_PERSISTENT);
     233       20786 :         REGISTER_LONG_CONSTANT("FILTER_FORCE_ARRAY", FILTER_FORCE_ARRAY, CONST_CS | CONST_PERSISTENT);
     234       20786 :         REGISTER_LONG_CONSTANT("FILTER_NULL_ON_FAILURE", FILTER_NULL_ON_FAILURE, CONST_CS | CONST_PERSISTENT);
     235             : 
     236       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_INT", FILTER_VALIDATE_INT, CONST_CS | CONST_PERSISTENT);
     237       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_BOOLEAN", FILTER_VALIDATE_BOOLEAN, CONST_CS | CONST_PERSISTENT);
     238       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_FLOAT", FILTER_VALIDATE_FLOAT, CONST_CS | CONST_PERSISTENT);
     239             : 
     240       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_REGEXP", FILTER_VALIDATE_REGEXP, CONST_CS | CONST_PERSISTENT);
     241       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_DOMAIN", FILTER_VALIDATE_DOMAIN, CONST_CS | CONST_PERSISTENT);
     242       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_URL", FILTER_VALIDATE_URL, CONST_CS | CONST_PERSISTENT);
     243       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_EMAIL", FILTER_VALIDATE_EMAIL, CONST_CS | CONST_PERSISTENT);
     244       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_IP", FILTER_VALIDATE_IP, CONST_CS | CONST_PERSISTENT);
     245       20786 :         REGISTER_LONG_CONSTANT("FILTER_VALIDATE_MAC", FILTER_VALIDATE_MAC, CONST_CS | CONST_PERSISTENT);
     246             : 
     247       20786 :         REGISTER_LONG_CONSTANT("FILTER_DEFAULT", FILTER_DEFAULT, CONST_CS | CONST_PERSISTENT);
     248       20786 :         REGISTER_LONG_CONSTANT("FILTER_UNSAFE_RAW", FILTER_UNSAFE_RAW, CONST_CS | CONST_PERSISTENT);
     249             : 
     250       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_STRING", FILTER_SANITIZE_STRING, CONST_CS | CONST_PERSISTENT);
     251       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_STRIPPED", FILTER_SANITIZE_STRING, CONST_CS | CONST_PERSISTENT);
     252       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_ENCODED", FILTER_SANITIZE_ENCODED, CONST_CS | CONST_PERSISTENT);
     253       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_SPECIAL_CHARS", FILTER_SANITIZE_SPECIAL_CHARS, CONST_CS | CONST_PERSISTENT);
     254       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_FULL_SPECIAL_CHARS", FILTER_SANITIZE_FULL_SPECIAL_CHARS, CONST_CS | CONST_PERSISTENT);
     255       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_EMAIL", FILTER_SANITIZE_EMAIL, CONST_CS | CONST_PERSISTENT);
     256       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_URL", FILTER_SANITIZE_URL, CONST_CS | CONST_PERSISTENT);
     257       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_NUMBER_INT", FILTER_SANITIZE_NUMBER_INT, CONST_CS | CONST_PERSISTENT);
     258       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_NUMBER_FLOAT", FILTER_SANITIZE_NUMBER_FLOAT, CONST_CS | CONST_PERSISTENT);
     259       20786 :         REGISTER_LONG_CONSTANT("FILTER_SANITIZE_MAGIC_QUOTES", FILTER_SANITIZE_MAGIC_QUOTES, CONST_CS | CONST_PERSISTENT);
     260             : 
     261       20786 :         REGISTER_LONG_CONSTANT("FILTER_CALLBACK", FILTER_CALLBACK, CONST_CS | CONST_PERSISTENT);
     262             : 
     263       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ALLOW_OCTAL", FILTER_FLAG_ALLOW_OCTAL, CONST_CS | CONST_PERSISTENT);
     264       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ALLOW_HEX", FILTER_FLAG_ALLOW_HEX, CONST_CS | CONST_PERSISTENT);
     265             : 
     266       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_STRIP_LOW", FILTER_FLAG_STRIP_LOW, CONST_CS | CONST_PERSISTENT);
     267       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_STRIP_HIGH", FILTER_FLAG_STRIP_HIGH, CONST_CS | CONST_PERSISTENT);
     268       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_STRIP_BACKTICK", FILTER_FLAG_STRIP_BACKTICK, CONST_CS | CONST_PERSISTENT);
     269       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ENCODE_LOW", FILTER_FLAG_ENCODE_LOW, CONST_CS | CONST_PERSISTENT);
     270       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ENCODE_HIGH", FILTER_FLAG_ENCODE_HIGH, CONST_CS | CONST_PERSISTENT);
     271       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ENCODE_AMP", FILTER_FLAG_ENCODE_AMP, CONST_CS | CONST_PERSISTENT);
     272       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_NO_ENCODE_QUOTES", FILTER_FLAG_NO_ENCODE_QUOTES, CONST_CS | CONST_PERSISTENT);
     273       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_EMPTY_STRING_NULL", FILTER_FLAG_EMPTY_STRING_NULL, CONST_CS | CONST_PERSISTENT);
     274             : 
     275       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ALLOW_FRACTION", FILTER_FLAG_ALLOW_FRACTION, CONST_CS | CONST_PERSISTENT);
     276       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ALLOW_THOUSAND", FILTER_FLAG_ALLOW_THOUSAND, CONST_CS | CONST_PERSISTENT);
     277       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_ALLOW_SCIENTIFIC", FILTER_FLAG_ALLOW_SCIENTIFIC, CONST_CS | CONST_PERSISTENT);
     278             : 
     279       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_SCHEME_REQUIRED", FILTER_FLAG_SCHEME_REQUIRED, CONST_CS | CONST_PERSISTENT);
     280       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_HOST_REQUIRED", FILTER_FLAG_HOST_REQUIRED, CONST_CS | CONST_PERSISTENT);
     281       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_PATH_REQUIRED", FILTER_FLAG_PATH_REQUIRED, CONST_CS | CONST_PERSISTENT);
     282       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_QUERY_REQUIRED", FILTER_FLAG_QUERY_REQUIRED, CONST_CS | CONST_PERSISTENT);
     283             : 
     284       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_IPV4", FILTER_FLAG_IPV4, CONST_CS | CONST_PERSISTENT);
     285       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_IPV6", FILTER_FLAG_IPV6, CONST_CS | CONST_PERSISTENT);
     286       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_NO_RES_RANGE", FILTER_FLAG_NO_RES_RANGE, CONST_CS | CONST_PERSISTENT);
     287       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_NO_PRIV_RANGE", FILTER_FLAG_NO_PRIV_RANGE, CONST_CS | CONST_PERSISTENT);
     288             : 
     289       20786 :         REGISTER_LONG_CONSTANT("FILTER_FLAG_HOSTNAME", FILTER_FLAG_HOSTNAME, CONST_CS | CONST_PERSISTENT);
     290             : 
     291       20786 :         sapi_register_input_filter(php_sapi_filter, php_sapi_filter_init);
     292             : 
     293       20786 :         return SUCCESS;
     294             : }
     295             : /* }}} */
     296             : 
     297             : /* {{{ PHP_MSHUTDOWN_FUNCTION
     298             :  */
     299       20820 : PHP_MSHUTDOWN_FUNCTION(filter)
     300             : {
     301       20820 :         UNREGISTER_INI_ENTRIES();
     302             : 
     303       20820 :         return SUCCESS;
     304             : }
     305             : /* }}} */
     306             : 
     307             : /* {{{ PHP_RSHUTDOWN_FUNCTION
     308             :  */
     309             : #define VAR_ARRAY_COPY_DTOR(a)   \
     310             :         if (!Z_ISUNDEF(IF_G(a))) {   \
     311             :                 zval_ptr_dtor(&IF_G(a)); \
     312             :                 ZVAL_UNDEF(&IF_G(a));    \
     313             :         }
     314             : 
     315       20779 : PHP_RSHUTDOWN_FUNCTION(filter)
     316             : {
     317       20779 :         VAR_ARRAY_COPY_DTOR(get_array)
     318       20779 :         VAR_ARRAY_COPY_DTOR(post_array)
     319       20779 :         VAR_ARRAY_COPY_DTOR(cookie_array)
     320       20779 :         VAR_ARRAY_COPY_DTOR(server_array)
     321       20779 :         VAR_ARRAY_COPY_DTOR(env_array)
     322       20779 :         VAR_ARRAY_COPY_DTOR(session_array)
     323       20779 :         return SUCCESS;
     324             : }
     325             : /* }}} */
     326             : 
     327             : /* {{{ PHP_MINFO_FUNCTION
     328             :  */
     329         144 : PHP_MINFO_FUNCTION(filter)
     330             : {
     331         144 :         php_info_print_table_start();
     332         144 :         php_info_print_table_row( 2, "Input Validation and Filtering", "enabled" );
     333         144 :         php_info_print_table_row( 2, "Revision", "$Id: 85cfbf091395a26b34441a4ddc9e03b3508d448f $");
     334         144 :         php_info_print_table_end();
     335             : 
     336         144 :         DISPLAY_INI_ENTRIES();
     337         144 : }
     338             : /* }}} */
     339             : 
     340        1034 : static filter_list_entry php_find_filter(zend_long id) /* {{{ */
     341             : {
     342        1034 :         int i, size = sizeof(filter_list) / sizeof(filter_list_entry);
     343             : 
     344        9009 :         for (i = 0; i < size; ++i) {
     345        9004 :                 if (filter_list[i].id == id) {
     346        1029 :                         return filter_list[i];
     347             :                 }
     348             :         }
     349             :         /* Fallback to "string" filter */
     350          75 :         for (i = 0; i < size; ++i) {
     351          75 :                 if (filter_list[i].id == FILTER_DEFAULT) {
     352           5 :                         return filter_list[i];
     353             :                 }
     354             :         }
     355             :         /* To shut up GCC */
     356           0 :         return filter_list[0];
     357             : }
     358             : /* }}} */
     359             : 
     360       20743 : static unsigned int php_sapi_filter_init(void)
     361             : {
     362       20743 :         ZVAL_UNDEF(&IF_G(get_array));
     363       20743 :         ZVAL_UNDEF(&IF_G(post_array));
     364       20743 :         ZVAL_UNDEF(&IF_G(cookie_array));
     365       20743 :         ZVAL_UNDEF(&IF_G(server_array));
     366       20743 :         ZVAL_UNDEF(&IF_G(env_array));
     367       20743 :         ZVAL_UNDEF(&IF_G(session_array));
     368       20743 :         return SUCCESS;
     369             : }
     370             : 
     371        1034 : static void php_zval_filter(zval *value, zend_long filter, zend_long flags, zval *options, char* charset, zend_bool copy) /* {{{ */
     372             : {
     373             :         filter_list_entry  filter_func;
     374             : 
     375        1034 :         filter_func = php_find_filter(filter);
     376             : 
     377        1034 :         if (!filter_func.id) {
     378             :                 /* Find default filter */
     379           0 :                 filter_func = php_find_filter(FILTER_DEFAULT);
     380             :         }
     381             : 
     382        1034 :         if (copy) {
     383        1696 :                 SEPARATE_ZVAL(value);
     384             :         }
     385             : 
     386             :         /* #49274, fatal error with object without a toString method
     387             :           Fails nicely instead of getting a recovarable fatal error. */
     388        1034 :         if (Z_TYPE_P(value) == IS_OBJECT) {
     389             :                 zend_class_entry *ce;
     390             : 
     391           2 :                 ce = Z_OBJCE_P(value);
     392           2 :                 if (!ce->__tostring) {
     393           1 :                         ZVAL_FALSE(value);
     394           1 :                         return;
     395             :                 }
     396             :         }
     397             : 
     398             :         /* Here be strings */
     399        1033 :         convert_to_string(value);
     400             : 
     401        1033 :         filter_func.function(value, flags, options, charset);
     402             : 
     403        1294 :         if (options && (Z_TYPE_P(options) == IS_ARRAY || Z_TYPE_P(options) == IS_OBJECT) &&
     404          41 :                 ((flags & FILTER_NULL_ON_FAILURE && Z_TYPE_P(value) == IS_NULL) ||
     405          41 :                 (!(flags & FILTER_NULL_ON_FAILURE) && Z_TYPE_P(value) == IS_FALSE)) &&
     406          26 :                 zend_hash_str_exists(HASH_OF(options), "default", sizeof("default") - 1)) {
     407             :                 zval *tmp;
     408           1 :                 if ((tmp = zend_hash_str_find(HASH_OF(options), "default", sizeof("default") - 1)) != NULL) {
     409           1 :                         ZVAL_COPY(value, tmp);
     410             :                 }
     411             :         }
     412             : }
     413             : /* }}} */
     414             : 
     415      102301 : static unsigned int php_sapi_filter(int arg, char *var, char **val, size_t val_len, size_t *new_val_len) /* {{{ */
     416             : {
     417             :         zval  new_var, raw_var;
     418      102301 :         zval *array_ptr = NULL, *orig_array_ptr = NULL;
     419      102301 :         int retval = 0;
     420             : 
     421             :         assert(*val != NULL);
     422             : 
     423             : #define PARSE_CASE(s,a,t)                               \
     424             :                 case s:                                         \
     425             :                         if (Z_ISUNDEF(IF_G(a))) {                       \
     426             :                                 array_init(&IF_G(a));                               \
     427             :                         }                                                                               \
     428             :                         array_ptr = &IF_G(a);                               \
     429             :                         orig_array_ptr = &PG(http_globals)[t];      \
     430             :                         break;
     431             : 
     432      102301 :         switch (arg) {
     433         117 :                 PARSE_CASE(PARSE_POST,    post_array,    TRACK_VARS_POST)
     434         235 :                 PARSE_CASE(PARSE_GET,     get_array,     TRACK_VARS_GET)
     435          39 :                 PARSE_CASE(PARSE_COOKIE,  cookie_array,  TRACK_VARS_COOKIE)
     436      101791 :                 PARSE_CASE(PARSE_SERVER,  server_array,  TRACK_VARS_SERVER)
     437           0 :                 PARSE_CASE(PARSE_ENV,     env_array,     TRACK_VARS_ENV)
     438             : 
     439             :                 case PARSE_STRING: /* PARSE_STRING is used by parse_str() function */
     440         119 :                         retval = 1;
     441             :                         break;
     442             :         }
     443             : 
     444             :         /*
     445             :          * According to rfc2965, more specific paths are listed above the less specific ones.
     446             :          * If we encounter a duplicate cookie name, we should skip it, since it is not possible
     447             :          * to have the same (plain text) cookie name for the same path and we should not overwrite
     448             :          * more specific cookies with the less specific ones.
     449             :         */
     450      102340 :         if (arg == PARSE_COOKIE && orig_array_ptr &&
     451          39 :                         zend_symtable_str_exists(Z_ARRVAL_P(orig_array_ptr), var, strlen(var))) {
     452           3 :                 return 0;
     453             :         }
     454             : 
     455      102298 :         if (array_ptr) {
     456             :                 /* Store the RAW variable internally */
     457      204358 :                 ZVAL_STRINGL(&raw_var, *val, val_len);
     458      102179 :                 php_register_variable_ex(var, &raw_var, array_ptr);
     459             :         }
     460             : 
     461      102298 :         if (val_len) {
     462             :                 /* Register mangled variable */
     463       81650 :                 if (IF_G(default_filter) != FILTER_UNSAFE_RAW) {
     464          18 :                         ZVAL_STRINGL(&new_var, *val, val_len);
     465           9 :                         php_zval_filter(&new_var, IF_G(default_filter), IF_G(default_filter_flags), NULL, NULL, 0);
     466             :                 } else {
     467      163282 :                         ZVAL_STRINGL(&new_var, *val, val_len);
     468             :                 }
     469             :         } else { /* empty string */
     470       20648 :                 ZVAL_EMPTY_STRING(&new_var);
     471             :         }
     472             : 
     473      102298 :         if (orig_array_ptr) {
     474      102179 :                 php_register_variable_ex(var, &new_var, orig_array_ptr);
     475             :         }
     476             : 
     477      102298 :         if (retval) {
     478         119 :                 if (new_val_len) {
     479         111 :                         *new_val_len = Z_STRLEN(new_var);
     480             :                 }
     481         119 :                 efree(*val);
     482         119 :                 if (Z_STRLEN(new_var)) {
     483         112 :                         *val = estrndup(Z_STRVAL(new_var), Z_STRLEN(new_var));
     484             :                 } else {
     485           7 :                         *val = estrdup("");
     486             :                 }
     487         119 :                 zval_ptr_dtor(&new_var);
     488             :         }
     489             : 
     490      102298 :         return retval;
     491             : }
     492             : /* }}} */
     493             : 
     494          21 : static void php_zval_filter_recursive(zval *value, zend_long filter, zend_long flags, zval *options, char *charset, zend_bool copy) /* {{{ */
     495             : {
     496          21 :         if (Z_TYPE_P(value) == IS_ARRAY) {
     497             :                 zval *element;
     498             : 
     499          21 :                 if (Z_ARRVAL_P(value)->u.v.nApplyCount > 1) {
     500           0 :                         return;
     501             :                 }
     502             : 
     503         111 :                 ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(value), element) {
     504          45 :                         ZVAL_DEREF(element);
     505         114 :                         SEPARATE_ZVAL_NOREF(element);
     506          45 :                         if (Z_TYPE_P(element) == IS_ARRAY) {
     507           6 :                                 Z_ARRVAL_P(element)->u.v.nApplyCount++;
     508           6 :                                 php_zval_filter_recursive(element, filter, flags, options, charset, copy);
     509           6 :                                 Z_ARRVAL_P(element)->u.v.nApplyCount--;
     510             :                         } else {
     511          39 :                                 php_zval_filter(element, filter, flags, options, charset, copy);
     512             :                         }
     513             :                 } ZEND_HASH_FOREACH_END();
     514             :         } else {
     515           0 :                 php_zval_filter(value, filter, flags, options, charset, copy);
     516             :         }
     517             : }
     518             : /* }}} */
     519             : 
     520          48 : static zval *php_filter_get_storage(zend_long arg)/* {{{ */
     521             : 
     522             : {
     523          48 :         zval *array_ptr = NULL;
     524             : 
     525          48 :         switch (arg) {
     526             :                 case PARSE_GET:
     527          23 :                         array_ptr = &IF_G(get_array);
     528          23 :                         break;
     529             :                 case PARSE_POST:
     530          14 :                         array_ptr = &IF_G(post_array);
     531          14 :                         break;
     532             :                 case PARSE_COOKIE:
     533           7 :                         array_ptr = &IF_G(cookie_array);
     534           7 :                         break;
     535             :                 case PARSE_SERVER:
     536           2 :                         if (PG(auto_globals_jit)) {
     537           2 :                                 zend_string *name = zend_string_init("_SERVER", sizeof("_SERVER") - 1, 0);
     538           2 :                                 zend_is_auto_global(name);
     539             :                                 zend_string_release(name);
     540             :                         }
     541           2 :                         array_ptr = &IF_G(server_array);
     542           2 :                         break;
     543             :                 case PARSE_ENV:
     544           0 :                         if (PG(auto_globals_jit)) {
     545           0 :                                 zend_string *name = zend_string_init("_ENV", sizeof("_ENV") - 1, 0);
     546           0 :                                 zend_is_auto_global(name);
     547             :                                 zend_string_release(name);
     548             :                         }
     549           0 :                         array_ptr = &IF_G(env_array) ? &IF_G(env_array) : &PG(http_globals)[TRACK_VARS_ENV];
     550           0 :                         break;
     551             :                 case PARSE_SESSION:
     552             :                         /* FIXME: Implement session source */
     553           0 :                         php_error_docref(NULL, E_WARNING, "INPUT_SESSION is not yet implemented");
     554           0 :                         break;
     555             :                 case PARSE_REQUEST:
     556             :                         /* FIXME: Implement request source */
     557           0 :                         php_error_docref(NULL, E_WARNING, "INPUT_REQUEST is not yet implemented");
     558             :                         break;
     559             :         }
     560             : 
     561          48 :         return array_ptr;
     562             : }
     563             : /* }}} */
     564             : 
     565             : /* {{{ proto mixed filter_has_var(constant type, string variable_name)
     566             :  * Returns true if the variable with the name 'name' exists in source.
     567             :  */
     568          31 : PHP_FUNCTION(filter_has_var)
     569             : {
     570             :         zend_long         arg;
     571             :         zend_string *var;
     572          31 :         zval        *array_ptr = NULL;
     573             : 
     574          31 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "lS", &arg, &var) == FAILURE) {
     575           9 :                 RETURN_FALSE;
     576             :         }
     577             : 
     578          22 :         array_ptr = php_filter_get_storage(arg);
     579             : 
     580          62 :         if (array_ptr && HASH_OF(array_ptr) && zend_hash_exists(HASH_OF(array_ptr), var)) {
     581           9 :                 RETURN_TRUE;
     582             :         }
     583             : 
     584          13 :         RETURN_FALSE;
     585             : }
     586             : /* }}} */
     587             : 
     588        1007 : static void php_filter_call(zval *filtered, zend_long filter, zval *filter_args, const int copy, zend_long filter_flags) /* {{{ */
     589             : {
     590        1007 :         zval *options = NULL;
     591             :         zval *option;
     592        1007 :         char *charset = NULL;
     593             : 
     594        1950 :         if (filter_args && Z_TYPE_P(filter_args) != IS_ARRAY) {
     595         183 :                 zend_long lval = zval_get_long(filter_args);
     596             : 
     597         183 :                 if (filter != -1) { /* handler for array apply */
     598             :                         /* filter_args is the filter_flags */
     599         172 :                         filter_flags = lval;
     600             : 
     601         172 :                         if (!(filter_flags & FILTER_REQUIRE_ARRAY ||  filter_flags & FILTER_FORCE_ARRAY)) {
     602         167 :                                 filter_flags |= FILTER_REQUIRE_SCALAR;
     603             :                         }
     604             :                 } else {
     605          11 :                         filter = lval;
     606             :                 }
     607         824 :         } else if (filter_args) {
     608         577 :                 if ((option = zend_hash_str_find(HASH_OF(filter_args), "filter", sizeof("filter") - 1)) != NULL) {
     609           9 :                         filter = zval_get_long(option);
     610             :                 }
     611             : 
     612         577 :                 if ((option = zend_hash_str_find(HASH_OF(filter_args), "flags", sizeof("flags") - 1)) != NULL) {
     613         311 :                         filter_flags = zval_get_long(option);
     614             : 
     615         311 :                         if (!(filter_flags & FILTER_REQUIRE_ARRAY ||  filter_flags & FILTER_FORCE_ARRAY)) {
     616         300 :                                 filter_flags |= FILTER_REQUIRE_SCALAR;
     617             :                         }
     618             :                 }
     619             : 
     620         577 :                 if ((option = zend_hash_str_find(HASH_OF(filter_args), "options", sizeof("options") - 1)) != NULL) {
     621         264 :                         if (filter != FILTER_CALLBACK) {
     622         227 :                                 if (Z_TYPE_P(option) == IS_ARRAY) {
     623          37 :                                         options = option;
     624             :                                 }
     625             :                         } else {
     626          37 :                                 options = option;
     627          37 :                                 filter_flags = 0;
     628             :                         }
     629             :                 }
     630             :         }
     631             : 
     632        1007 :         if (Z_TYPE_P(filtered) == IS_ARRAY) {
     633          20 :                 if (filter_flags & FILTER_REQUIRE_SCALAR) {
     634           5 :                         if (copy) {
     635           6 :                                 SEPARATE_ZVAL(filtered);
     636             :                         }
     637           5 :                         zval_ptr_dtor(filtered);
     638           5 :                         if (filter_flags & FILTER_NULL_ON_FAILURE) {
     639           0 :                                 ZVAL_NULL(filtered);
     640             :                         } else {
     641           5 :                                 ZVAL_FALSE(filtered);
     642             :                         }
     643           5 :                         return;
     644             :                 }
     645          15 :                 php_zval_filter_recursive(filtered, filter, filter_flags, options, charset, copy);
     646          15 :                 return;
     647             :         }
     648         987 :         if (filter_flags & FILTER_REQUIRE_ARRAY) {
     649           1 :                 if (copy) {
     650           1 :                         SEPARATE_ZVAL(filtered);
     651             :                 }
     652           1 :                 zval_ptr_dtor(filtered);
     653           1 :                 if (filter_flags & FILTER_NULL_ON_FAILURE) {
     654           0 :                         ZVAL_NULL(filtered);
     655             :                 } else {
     656           1 :                         ZVAL_FALSE(filtered);
     657             :                 }
     658           1 :                 return;
     659             :         }
     660             : 
     661         986 :         php_zval_filter(filtered, filter, filter_flags, options, charset, copy);
     662         986 :         if (filter_flags & FILTER_FORCE_ARRAY) {
     663             :                 zval tmp;
     664           5 :                 ZVAL_COPY_VALUE(&tmp, filtered);
     665           5 :                 array_init(filtered);
     666           5 :                 add_next_index_zval(filtered, &tmp);
     667             :         }
     668             : }
     669             : /* }}} */
     670             : 
     671          23 : static void php_filter_array_handler(zval *input, zval *op, zval *return_value, zend_bool add_empty) /* {{{ */
     672             : {
     673             :         zend_string *arg_key;
     674             :         zval *tmp, *arg_elm;
     675             : 
     676          23 :         if (!op) {
     677           2 :                 zval_ptr_dtor(return_value);
     678           2 :                 ZVAL_DUP(return_value, input);
     679           2 :                 php_filter_call(return_value, FILTER_DEFAULT, NULL, 0, FILTER_REQUIRE_ARRAY);
     680          21 :         } else if (Z_TYPE_P(op) == IS_LONG) {
     681           1 :                 zval_ptr_dtor(return_value);
     682           1 :                 ZVAL_DUP(return_value, input);
     683           1 :                 php_filter_call(return_value, Z_LVAL_P(op), NULL, 0, FILTER_REQUIRE_ARRAY);
     684          20 :         } else if (Z_TYPE_P(op) == IS_ARRAY) {
     685          15 :                 array_init(return_value);
     686             : 
     687          81 :                 ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(op), arg_key, arg_elm) {
     688          34 :                         if (arg_key == NULL) {
     689           0 :                                 php_error_docref(NULL, E_WARNING, "Numeric keys are not allowed in the definition array");
     690           0 :                                 zval_ptr_dtor(return_value);
     691           0 :                                 RETURN_FALSE;
     692             :                         }
     693          34 :                         if (arg_key->len == 0) {
     694           2 :                                 php_error_docref(NULL, E_WARNING, "Empty keys are not allowed in the definition array");
     695           2 :                                 zval_ptr_dtor(return_value);
     696           2 :                                 RETURN_FALSE;
     697             :                         }
     698          32 :                         if ((tmp = zend_hash_find(Z_ARRVAL_P(input), arg_key)) == NULL) {
     699          10 :                                 if (add_empty) {
     700           9 :                                         add_assoc_null_ex(return_value, arg_key->val, arg_key->len);
     701             :                                 }
     702             :                         } else {
     703             :                                 zval nval;
     704          22 :                                 ZVAL_DEREF(tmp);
     705          22 :                                 ZVAL_DUP(&nval, tmp);
     706          22 :                                 php_filter_call(&nval, -1, arg_elm, 0, FILTER_REQUIRE_SCALAR);
     707          22 :                                 zend_hash_update(Z_ARRVAL_P(return_value), arg_key, &nval);
     708             :                         }
     709             :                 } ZEND_HASH_FOREACH_END();
     710             :         } else {
     711           5 :                 RETURN_FALSE;
     712             :         }
     713             : }
     714             : /* }}} */
     715             : 
     716             : /* {{{ proto mixed filter_input(constant type, string variable_name [, long filter [, mixed options]])
     717             :  * Returns the filtered variable 'name'* from source `type`.
     718             :  */
     719          26 : PHP_FUNCTION(filter_input)
     720             : {
     721          26 :         zend_long fetch_from, filter = FILTER_DEFAULT;
     722          26 :         zval *filter_args = NULL, *tmp;
     723          26 :         zval *input = NULL;
     724             :         zend_string *var;
     725             : 
     726          26 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "lS|lz", &fetch_from, &var, &filter, &filter_args) == FAILURE) {
     727           1 :                 return;
     728             :         }
     729             : 
     730          25 :         if (!PHP_FILTER_ID_EXISTS(filter)) {
     731           0 :                 RETURN_FALSE;
     732             :         }
     733             : 
     734          25 :         input = php_filter_get_storage(fetch_from);
     735             : 
     736          75 :         if (!input || !HASH_OF(input) || (tmp = zend_hash_find(HASH_OF(input), var)) == NULL) {
     737           5 :                 zend_long filter_flags = 0;
     738             :                 zval *option, *opt, *def;
     739           5 :                 if (filter_args) {
     740           2 :                         if (Z_TYPE_P(filter_args) == IS_LONG) {
     741           0 :                                 filter_flags = Z_LVAL_P(filter_args);
     742           3 :                         } else if (Z_TYPE_P(filter_args) == IS_ARRAY && (option = zend_hash_str_find(HASH_OF(filter_args), "flags", sizeof("flags") - 1)) != NULL) {
     743           1 :                                 filter_flags = zval_get_long(option);
     744             :                         }
     745           5 :                         if (Z_TYPE_P(filter_args) == IS_ARRAY &&
     746           2 :                                 (opt = zend_hash_str_find(HASH_OF(filter_args), "options", sizeof("options") - 1)) != NULL &&
     747             :                                 Z_TYPE_P(opt) == IS_ARRAY &&
     748           1 :                                 (def = zend_hash_str_find(HASH_OF(opt), "default", sizeof("default") - 1)) != NULL) {
     749           1 :                                 ZVAL_COPY(return_value, def);
     750           1 :                                 return;
     751             :                         }
     752             :                 }
     753             : 
     754             :                 /* The FILTER_NULL_ON_FAILURE flag inverts the usual return values of
     755             :                  * the function: normally when validation fails false is returned, and
     756             :                  * when the input value doesn't exist NULL is returned. With the flag
     757             :                  * set, NULL and false should be returned, respectively. Ergo, although
     758             :                  * the code below looks incorrect, it's actually right. */
     759           4 :                 if (filter_flags & FILTER_NULL_ON_FAILURE) {
     760           0 :                         RETURN_FALSE;
     761             :                 } else {
     762           4 :                         RETURN_NULL();
     763             :                 }
     764             :         }
     765             : 
     766          20 :         ZVAL_DUP(return_value, tmp);
     767             : 
     768          20 :         php_filter_call(return_value, filter, filter_args, 1, FILTER_REQUIRE_SCALAR);
     769             : }
     770             : /* }}} */
     771             : 
     772             : /* {{{ proto mixed filter_var(mixed variable [, long filter [, mixed options]])
     773             :  * Returns the filtered version of the variable.
     774             :  */
     775         968 : PHP_FUNCTION(filter_var)
     776             : {
     777         968 :         zend_long filter = FILTER_DEFAULT;
     778         968 :         zval *filter_args = NULL, *data;
     779             : 
     780         968 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z/|lz", &data, &filter, &filter_args) == FAILURE) {
     781           4 :                 return;
     782             :         }
     783             : 
     784         964 :         if (!PHP_FILTER_ID_EXISTS(filter)) {
     785           2 :                 RETURN_FALSE;
     786             :         }
     787             : 
     788         962 :         ZVAL_DUP(return_value, data);
     789             : 
     790         962 :         php_filter_call(return_value, filter, filter_args, 1, FILTER_REQUIRE_SCALAR);
     791             : }
     792             : /* }}} */
     793             : 
     794             : /* {{{ proto mixed filter_input_array(constant type, [, mixed options [, bool add_empty]]])
     795             :  * Returns an array with all arguments defined in 'definition'.
     796             :  */
     797           1 : PHP_FUNCTION(filter_input_array)
     798             : {
     799             :         zend_long    fetch_from;
     800           1 :         zval   *array_input = NULL, *op = NULL;
     801           1 :         zend_bool add_empty = 1;
     802             : 
     803           1 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|zb",  &fetch_from, &op, &add_empty) == FAILURE) {
     804           0 :                 return;
     805             :         }
     806             : 
     807           2 :         if (op && (Z_TYPE_P(op) != IS_ARRAY) && (Z_TYPE_P(op) == IS_LONG && !PHP_FILTER_ID_EXISTS(Z_LVAL_P(op)))) {
     808           0 :                 RETURN_FALSE;
     809             :         }
     810             : 
     811           1 :         array_input = php_filter_get_storage(fetch_from);
     812             : 
     813           2 :         if (!array_input || !HASH_OF(array_input)) {
     814           0 :                 zend_long filter_flags = 0;
     815             :                 zval *option;
     816           0 :                 if (op) {
     817           0 :                         if (Z_TYPE_P(op) == IS_LONG) {
     818           0 :                                 filter_flags = Z_LVAL_P(op);
     819           0 :                         } else if (Z_TYPE_P(op) == IS_ARRAY && (option = zend_hash_str_find(HASH_OF(op), "flags", sizeof("flags") - 1)) != NULL) {
     820           0 :                                 filter_flags = zval_get_long(option);
     821             :                         }
     822             :                 }
     823             : 
     824             :                 /* The FILTER_NULL_ON_FAILURE flag inverts the usual return values of
     825             :                  * the function: normally when validation fails false is returned, and
     826             :                  * when the input value doesn't exist NULL is returned. With the flag
     827             :                  * set, NULL and false should be returned, respectively. Ergo, although
     828             :                  * the code below looks incorrect, it's actually right. */
     829           0 :                 if (filter_flags & FILTER_NULL_ON_FAILURE) {
     830           0 :                         RETURN_FALSE;
     831             :                 } else {
     832           0 :                         RETURN_NULL();
     833             :                 }
     834             :         }
     835             : 
     836           1 :         php_filter_array_handler(array_input, op, return_value, add_empty);
     837             : }
     838             : /* }}} */
     839             : 
     840             : /* {{{ proto mixed filter_var_array(array data, [, mixed options [, bool add_empty]]])
     841             :  * Returns an array with all arguments defined in 'definition'.
     842             :  */
     843          31 : PHP_FUNCTION(filter_var_array)
     844             : {
     845          31 :         zval *array_input = NULL, *op = NULL;
     846          31 :         zend_bool add_empty = 1;
     847             : 
     848          31 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "a|zb",  &array_input, &op, &add_empty) == FAILURE) {
     849           1 :                 return;
     850             :         }
     851             : 
     852          72 :         if (op && (Z_TYPE_P(op) != IS_ARRAY) && (Z_TYPE_P(op) == IS_LONG && !PHP_FILTER_ID_EXISTS(Z_LVAL_P(op)))) {
     853           8 :                 RETURN_FALSE;
     854             :         }
     855             : 
     856          22 :         php_filter_array_handler(array_input, op, return_value, add_empty);
     857             : }
     858             : /* }}} */
     859             : 
     860             : /* {{{ proto filter_list()
     861             :  * Returns a list of all supported filters */
     862           3 : PHP_FUNCTION(filter_list)
     863             : {
     864           3 :         int i, size = sizeof(filter_list) / sizeof(filter_list_entry);
     865             : 
     866           3 :         if (zend_parse_parameters_none() == FAILURE) {
     867           1 :                 return;
     868             :         }
     869             : 
     870           2 :         array_init(return_value);
     871          44 :         for (i = 0; i < size; ++i) {
     872          42 :                 add_next_index_string(return_value, (char *)filter_list[i].name);
     873             :         }
     874             : }
     875             : /* }}} */
     876             : 
     877             : /* {{{ proto filter_id(string filtername)
     878             :  * Returns the filter ID belonging to a named filter */
     879         218 : PHP_FUNCTION(filter_id)
     880             : {
     881             :         int i;
     882             :         size_t filter_len;
     883         218 :         int size = sizeof(filter_list) / sizeof(filter_list_entry);
     884             :         char *filter;
     885             : 
     886         218 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &filter, &filter_len) == FAILURE) {
     887           2 :                 return;
     888             :         }
     889             : 
     890        2393 :         for (i = 0; i < size; ++i) {
     891        2391 :                 if (strcmp(filter_list[i].name, filter) == 0) {
     892         214 :                         RETURN_LONG(filter_list[i].id);
     893             :                 }
     894             :         }
     895             : 
     896           2 :         RETURN_FALSE;
     897             : }
     898             : /* }}} */
     899             : 
     900             : /*
     901             :  * Local variables:
     902             :  * tab-width: 4
     903             :  * c-basic-offset: 4
     904             :  * End:
     905             :  * vim600: noet sw=4 ts=4 fdm=marker
     906             :  * vim<600: noet sw=4 ts=4
     907             :  */

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