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php-src/ext/session/php_session.h
Peter Kokot f69c55b5b6
Remove hash dependency from session extension (#14409) 
The session extension once depended on the hash extension for having
hash functions available when using the `session.hash_function` INI
directive. This directive was removed in PHP-7.1 via
3467526a65. At the time it could be marked
as optional dependency, because it only needed to be loaded before the
session in that case.

The removed ext/hash/php_hash.h in the ext/session/php_session.h might
cause BC break for PHP extensions if they rely on transitive include and
use hash extension in the code without explicitly including the
ext/hash/php_hash.h header. Solution is to include the
ext/hash/php_hash.h separately.
2024-06-01 17:06:17 +01:00

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/*
+----------------------------------------------------------------------+
| Copyright (c) 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: |
| https://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: Sascha Schumann <sascha@schumann.cx> |
+----------------------------------------------------------------------+
*/
#ifndef PHP_SESSION_H
#define PHP_SESSION_H
#include "ext/standard/php_var.h"
#include "ext/random/php_random.h"
#define PHP_SESSION_API 20161017
#include "php_version.h"
#define PHP_SESSION_VERSION PHP_VERSION
/* save handler macros */
#define PS_OPEN_ARGS void **mod_data, const char *save_path, const char *session_name
#define PS_CLOSE_ARGS void **mod_data
#define PS_READ_ARGS void **mod_data, zend_string *key, zend_string **val, zend_long maxlifetime
#define PS_WRITE_ARGS void **mod_data, zend_string *key, zend_string *val, zend_long maxlifetime
#define PS_DESTROY_ARGS void **mod_data, zend_string *key
#define PS_GC_ARGS void **mod_data, zend_long maxlifetime, zend_long *nrdels
#define PS_CREATE_SID_ARGS void **mod_data
#define PS_VALIDATE_SID_ARGS void **mod_data, zend_string *key
#define PS_UPDATE_TIMESTAMP_ARGS void **mod_data, zend_string *key, zend_string *val, zend_long maxlifetime
typedef struct ps_module_struct {
const char *s_name;
zend_result (*s_open)(PS_OPEN_ARGS);
zend_result (*s_close)(PS_CLOSE_ARGS);
zend_result (*s_read)(PS_READ_ARGS);
zend_result (*s_write)(PS_WRITE_ARGS);
zend_result (*s_destroy)(PS_DESTROY_ARGS);
zend_long (*s_gc)(PS_GC_ARGS);
zend_string *(*s_create_sid)(PS_CREATE_SID_ARGS);
zend_result (*s_validate_sid)(PS_VALIDATE_SID_ARGS);
zend_result (*s_update_timestamp)(PS_UPDATE_TIMESTAMP_ARGS);
} ps_module;
#define PS_GET_MOD_DATA() *mod_data
#define PS_SET_MOD_DATA(a) *mod_data = (a)
#define PS_OPEN_FUNC(x) zend_result ps_open_##x(PS_OPEN_ARGS)
#define PS_CLOSE_FUNC(x) zend_result ps_close_##x(PS_CLOSE_ARGS)
#define PS_READ_FUNC(x) zend_result ps_read_##x(PS_READ_ARGS)
#define PS_WRITE_FUNC(x) zend_result ps_write_##x(PS_WRITE_ARGS)
#define PS_DESTROY_FUNC(x) zend_result ps_delete_##x(PS_DESTROY_ARGS)
#define PS_GC_FUNC(x) zend_long ps_gc_##x(PS_GC_ARGS)
#define PS_CREATE_SID_FUNC(x) zend_string *ps_create_sid_##x(PS_CREATE_SID_ARGS)
#define PS_VALIDATE_SID_FUNC(x) zend_result ps_validate_sid_##x(PS_VALIDATE_SID_ARGS)
#define PS_UPDATE_TIMESTAMP_FUNC(x) zend_result ps_update_timestamp_##x(PS_UPDATE_TIMESTAMP_ARGS)
/* Legacy save handler module definitions */
#define PS_FUNCS(x) \
PS_OPEN_FUNC(x); \
PS_CLOSE_FUNC(x); \
PS_READ_FUNC(x); \
PS_WRITE_FUNC(x); \
PS_DESTROY_FUNC(x); \
PS_GC_FUNC(x); \
PS_CREATE_SID_FUNC(x)
#define PS_MOD(x) \
#x, ps_open_##x, ps_close_##x, ps_read_##x, ps_write_##x, \
ps_delete_##x, ps_gc_##x, php_session_create_id, \
php_session_validate_sid, php_session_update_timestamp
/* Legacy SID creation enabled save handler module definitions */
#define PS_FUNCS_SID(x) \
PS_OPEN_FUNC(x); \
PS_CLOSE_FUNC(x); \
PS_READ_FUNC(x); \
PS_WRITE_FUNC(x); \
PS_DESTROY_FUNC(x); \
PS_GC_FUNC(x); \
PS_CREATE_SID_FUNC(x); \
PS_VALIDATE_SID_FUNC(x); \
PS_UPDATE_TIMESTAMP_FUNC(x);
#define PS_MOD_SID(x) \
#x, ps_open_##x, ps_close_##x, ps_read_##x, ps_write_##x, \
ps_delete_##x, ps_gc_##x, ps_create_sid_##x, \
php_session_validate_sid, php_session_update_timestamp
/* Update timestamp enabled save handler module definitions
New save handlers should use this API */
#define PS_FUNCS_UPDATE_TIMESTAMP(x) \
PS_OPEN_FUNC(x); \
PS_CLOSE_FUNC(x); \
PS_READ_FUNC(x); \
PS_WRITE_FUNC(x); \
PS_DESTROY_FUNC(x); \
PS_GC_FUNC(x); \
PS_CREATE_SID_FUNC(x); \
PS_VALIDATE_SID_FUNC(x); \
PS_UPDATE_TIMESTAMP_FUNC(x);
#define PS_MOD_UPDATE_TIMESTAMP(x) \
#x, ps_open_##x, ps_close_##x, ps_read_##x, ps_write_##x, \
ps_delete_##x, ps_gc_##x, ps_create_sid_##x, \
ps_validate_sid_##x, ps_update_timestamp_##x
typedef enum {
php_session_disabled,
php_session_none,
php_session_active
} php_session_status;
typedef struct _php_session_rfc1867_progress {
size_t sname_len;
zval sid;
smart_str key;
zend_long update_step;
zend_long next_update;
double next_update_time;
bool cancel_upload;
bool apply_trans_sid;
size_t content_length;
zval data; /* the array exported to session data */
zval files; /* data["files"] array */
zval *post_bytes_processed; /* data["bytes_processed"] */
zval *current_file_bytes_processed;
zval current_file; /* array of currently uploading file */
} php_session_rfc1867_progress;
typedef struct _php_ps_globals {
char *save_path;
char *session_name;
zend_string *id;
char *extern_referer_chk;
char *cache_limiter;
zend_long cookie_lifetime;
char *cookie_path;
char *cookie_domain;
char *cookie_samesite;
bool cookie_secure;
bool cookie_httponly;
const ps_module *mod;
const ps_module *default_mod;
void *mod_data;
php_session_status session_status;
zend_string *session_started_filename;
uint32_t session_started_lineno;
int module_number;
php_random_status_state_pcgoneseq128xslrr64 random_state;
php_random_algo_with_state random;
zend_long gc_probability;
zend_long gc_divisor;
zend_long gc_maxlifetime;
zend_long cache_expire;
struct {
zval ps_open;
zval ps_close;
zval ps_read;
zval ps_write;
zval ps_destroy;
zval ps_gc;
zval ps_create_sid;
zval ps_validate_sid;
zval ps_update_timestamp;
} mod_user_names;
zend_string *mod_user_class_name;
bool mod_user_implemented;
bool mod_user_is_open;
bool auto_start;
bool use_cookies;
bool use_only_cookies;
bool use_trans_sid; /* contains the INI value of whether to use trans-sid */
bool send_cookie;
bool define_sid;
const struct ps_serializer_struct *serializer;
zval http_session_vars;
zend_long sid_length;
zend_long sid_bits_per_character;
php_session_rfc1867_progress *rfc1867_progress;
char *rfc1867_prefix; /* session.upload_progress.prefix */
char *rfc1867_name; /* session.upload_progress.name */
zend_long rfc1867_freq; /* session.upload_progress.freq */
double rfc1867_min_freq; /* session.upload_progress.min_freq */
bool rfc1867_enabled; /* session.upload_progress.enabled */
bool rfc1867_cleanup; /* session.upload_progress.cleanup */
bool use_strict_mode; /* whether or not PHP accepts unknown session ids */
bool lazy_write; /* omit session write when it is possible */
bool in_save_handler; /* state if session is in save handler or not */
bool set_handler; /* state if session module i setting handler or not */
zend_string *session_vars; /* serialized original session data */
} php_ps_globals;
typedef php_ps_globals zend_ps_globals;
extern zend_module_entry session_module_entry;
#define phpext_session_ptr &session_module_entry
#ifdef ZTS
#define PS(v) ZEND_TSRMG(ps_globals_id, php_ps_globals *, v)
#ifdef COMPILE_DL_SESSION
ZEND_TSRMLS_CACHE_EXTERN()
#endif
#else
#define PS(v) (ps_globals.v)
#endif
#define PS_SERIALIZER_ENCODE_ARGS void
#define PS_SERIALIZER_DECODE_ARGS const char *val, size_t vallen
typedef struct ps_serializer_struct {
const char *name;
zend_string *(*encode)(PS_SERIALIZER_ENCODE_ARGS);
zend_result (*decode)(PS_SERIALIZER_DECODE_ARGS);
} ps_serializer;
#define PS_SERIALIZER_ENCODE_NAME(x) ps_srlzr_encode_##x
#define PS_SERIALIZER_DECODE_NAME(x) ps_srlzr_decode_##x
#define PS_SERIALIZER_ENCODE_FUNC(x) \
zend_string *PS_SERIALIZER_ENCODE_NAME(x)(PS_SERIALIZER_ENCODE_ARGS)
#define PS_SERIALIZER_DECODE_FUNC(x) \
zend_result PS_SERIALIZER_DECODE_NAME(x)(PS_SERIALIZER_DECODE_ARGS)
#define PS_SERIALIZER_FUNCS(x) \
PS_SERIALIZER_ENCODE_FUNC(x); \
PS_SERIALIZER_DECODE_FUNC(x)
#define PS_SERIALIZER_ENTRY(x) \
{ #x, PS_SERIALIZER_ENCODE_NAME(x), PS_SERIALIZER_DECODE_NAME(x) }
/* default create id function */
PHPAPI zend_string *php_session_create_id(PS_CREATE_SID_ARGS);
/* Dummy PS module functions */
PHPAPI zend_result php_session_validate_sid(PS_VALIDATE_SID_ARGS);
PHPAPI zend_result php_session_update_timestamp(PS_UPDATE_TIMESTAMP_ARGS);
PHPAPI void session_adapt_url(const char *url, size_t url_len, char **new_url, size_t *new_len);
PHPAPI zend_result php_session_destroy(void);
PHPAPI void php_add_session_var(zend_string *name);
PHPAPI zval *php_set_session_var(zend_string *name, zval *state_val, php_unserialize_data_t *var_hash);
PHPAPI zval *php_get_session_var(zend_string *name);
PHPAPI zval* php_get_session_var_str(const char *name, size_t name_len);
PHPAPI zend_result php_session_register_module(const ps_module *);
PHPAPI zend_result php_session_register_serializer(const char *name,
zend_string *(*encode)(PS_SERIALIZER_ENCODE_ARGS),
zend_result (*decode)(PS_SERIALIZER_DECODE_ARGS));
PHPAPI zend_result php_session_start(void);
PHPAPI zend_result php_session_flush(int write);
PHPAPI php_session_status php_get_session_status(void);
PHPAPI const ps_module *_php_find_ps_module(const char *name);
PHPAPI const ps_serializer *_php_find_ps_serializer(const char *name);
PHPAPI zend_result php_session_valid_key(const char *key);
PHPAPI zend_result php_session_reset_id(void);
#define PS_ADD_VARL(name) do { \
php_add_session_var(name); \
} while (0)
#define PS_ADD_VAR(name) PS_ADD_VARL(name)
#define PS_DEL_VARL(name) do { \
if (!Z_ISNULL(PS(http_session_vars))) { \
zend_hash_del(Z_ARRVAL(PS(http_session_vars)), name); \
} \
} while (0)
#define PS_ENCODE_VARS \
zend_string *key; \
zend_ulong num_key; \
zval *struc;
#define PS_ENCODE_LOOP(code) do { \
HashTable *_ht = Z_ARRVAL_P(Z_REFVAL(PS(http_session_vars))); \
ZEND_HASH_FOREACH_KEY(_ht, num_key, key) { \
if (key == NULL) { \
php_error_docref(NULL, E_WARNING, \
"Skipping numeric key " ZEND_LONG_FMT, num_key);\
continue; \
} \
if ((struc = php_get_session_var(key))) { \
code; \
} \
} ZEND_HASH_FOREACH_END(); \
} while(0)
PHPAPI ZEND_EXTERN_MODULE_GLOBALS(ps)
void php_session_auto_start(void *data);
extern PHPAPI zend_class_entry *php_session_class_entry;
extern PHPAPI zend_class_entry *php_session_iface_entry;
extern PHPAPI zend_class_entry *php_session_id_iface_entry;
extern PHPAPI zend_class_entry *php_session_update_timestamp_iface_entry;
extern PHP_METHOD(SessionHandler, open);
extern PHP_METHOD(SessionHandler, close);
extern PHP_METHOD(SessionHandler, read);
extern PHP_METHOD(SessionHandler, write);
extern PHP_METHOD(SessionHandler, destroy);
extern PHP_METHOD(SessionHandler, gc);
extern PHP_METHOD(SessionHandler, create_sid);
#endif
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