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session.c
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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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Sascha Schumann <[email protected]> |
| Andrei Zmievski <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#ifdef PHP_WIN32
# include "win32/winutil.h"
# include "win32/time.h"
#else
# include <sys/time.h>
#endif
#include <sys/stat.h>
#include <fcntl.h>
#include "php_ini.h"
#include "SAPI.h"
#include "rfc1867.h"
#include "php_variables.h"
#include "php_session.h"
#include "session_arginfo.h"
#include "ext/standard/php_random.h"
#include "ext/standard/php_var.h"
#include "ext/date/php_date.h"
#include "ext/standard/php_lcg.h"
#include "ext/standard/url_scanner_ex.h"
#include "ext/standard/info.h"
#include "zend_smart_str.h"
#include "ext/standard/url.h"
#include "ext/standard/basic_functions.h"
#include "ext/standard/head.h"
#include "mod_files.h"
#include "mod_user.h"
#ifdef HAVE_LIBMM
#include "mod_mm.h"
#endif
PHPAPI ZEND_DECLARE_MODULE_GLOBALS(ps)
static int php_session_rfc1867_callback(unsigned int event, void *event_data, void **extra);
static int (*php_session_rfc1867_orig_callback)(unsigned int event, void *event_data, void **extra);
static void php_session_track_init(void);
/* SessionHandler class */
zend_class_entry *php_session_class_entry;
/* SessionHandlerInterface */
zend_class_entry *php_session_iface_entry;
/* SessionIdInterface */
zend_class_entry *php_session_id_iface_entry;
/* SessionUpdateTimestampInterface */
zend_class_entry *php_session_update_timestamp_iface_entry;
#define PS_MAX_SID_LENGTH 256
/* ***********
* Helpers *
*********** */
#define IF_SESSION_VARS() \
if (Z_ISREF_P(&PS(http_session_vars)) && Z_TYPE_P(Z_REFVAL(PS(http_session_vars))) == IS_ARRAY)
#define SESSION_CHECK_ACTIVE_STATE \
if (PS(session_status) == php_session_active) { \
php_error_docref(NULL, E_WARNING, "Session ini settings cannot be changed when a session is active"); \
return FAILURE; \
}
#define SESSION_CHECK_OUTPUT_STATE \
if (SG(headers_sent) && stage != ZEND_INI_STAGE_DEACTIVATE) { \
php_error_docref(NULL, E_WARNING, "Session ini settings cannot be changed after headers have already been sent"); \
return FAILURE; \
}
#define APPLY_TRANS_SID (PS(use_trans_sid) && !PS(use_only_cookies))
static int php_session_send_cookie(void);
static int php_session_abort(void);
/* Initialized in MINIT, readonly otherwise. */
static int my_module_number = 0;
/* Dispatched by RINIT and by php_session_destroy */
static inline void php_rinit_session_globals(void) /* {{{ */
{
/* Do NOT init PS(mod_user_names) here! */
/* TODO: These could be moved to MINIT and removed. These should be initialized by php_rshutdown_session_globals() always when execution is finished. */
PS(id) = NULL;
PS(session_status) = php_session_none;
PS(in_save_handler) = 0;
PS(set_handler) = 0;
PS(mod_data) = NULL;
PS(mod_user_is_open) = 0;
PS(define_sid) = 1;
PS(session_vars) = NULL;
PS(module_number) = my_module_number;
ZVAL_UNDEF(&PS(http_session_vars));
}
/* }}} */
/* Dispatched by RSHUTDOWN and by php_session_destroy */
static inline void php_rshutdown_session_globals(void) /* {{{ */
{
/* Do NOT destroy PS(mod_user_names) here! */
if (!Z_ISUNDEF(PS(http_session_vars))) {
zval_ptr_dtor(&PS(http_session_vars));
ZVAL_UNDEF(&PS(http_session_vars));
}
if (PS(mod_data) || PS(mod_user_implemented)) {
zend_try {
PS(mod)->s_close(&PS(mod_data));
} zend_end_try();
}
if (PS(id)) {
zend_string_release_ex(PS(id), 0);
PS(id) = NULL;
}
if (PS(session_vars)) {
zend_string_release_ex(PS(session_vars), 0);
PS(session_vars) = NULL;
}
/* User save handlers may end up directly here by misuse, bugs in user script, etc. */
/* Set session status to prevent error while restoring save handler INI value. */
PS(session_status) = php_session_none;
}
/* }}} */
PHPAPI int php_session_destroy(void) /* {{{ */
{
int retval = SUCCESS;
if (PS(session_status) != php_session_active) {
php_error_docref(NULL, E_WARNING, "Trying to destroy uninitialized session");
return FAILURE;
}
if (PS(id) && PS(mod)->s_destroy(&PS(mod_data), PS(id)) == FAILURE) {
retval = FAILURE;
if (!EG(exception)) {
php_error_docref(NULL, E_WARNING, "Session object destruction failed");
}
}
php_rshutdown_session_globals();
php_rinit_session_globals();
return retval;
}
/* }}} */
PHPAPI void php_add_session_var(zend_string *name) /* {{{ */
{
IF_SESSION_VARS() {
zval *sess_var = Z_REFVAL(PS(http_session_vars));
SEPARATE_ARRAY(sess_var);
if (!zend_hash_exists(Z_ARRVAL_P(sess_var), name)) {
zval empty_var;
ZVAL_NULL(&empty_var);
zend_hash_update(Z_ARRVAL_P(sess_var), name, &empty_var);
}
}
}
/* }}} */
PHPAPI zval* php_set_session_var(zend_string *name, zval *state_val, php_unserialize_data_t *var_hash) /* {{{ */
{
IF_SESSION_VARS() {
zval *sess_var = Z_REFVAL(PS(http_session_vars));
SEPARATE_ARRAY(sess_var);
return zend_hash_update(Z_ARRVAL_P(sess_var), name, state_val);
}
return NULL;
}
/* }}} */
PHPAPI zval* php_get_session_var(zend_string *name) /* {{{ */
{
IF_SESSION_VARS() {
return zend_hash_find(Z_ARRVAL_P(Z_REFVAL(PS(http_session_vars))), name);
}
return NULL;
}
/* }}} */
static void php_session_track_init(void) /* {{{ */
{
zval session_vars;
zend_string *var_name = zend_string_init("_SESSION", sizeof("_SESSION") - 1, 0);
/* Unconditionally destroy existing array -- possible dirty data */
zend_delete_global_variable(var_name);
if (!Z_ISUNDEF(PS(http_session_vars))) {
zval_ptr_dtor(&PS(http_session_vars));
}
array_init(&session_vars);
ZVAL_NEW_REF(&PS(http_session_vars), &session_vars);
Z_ADDREF_P(&PS(http_session_vars));
zend_hash_update_ind(&EG(symbol_table), var_name, &PS(http_session_vars));
zend_string_release_ex(var_name, 0);
}
/* }}} */
static zend_string *php_session_encode(void) /* {{{ */
{
IF_SESSION_VARS() {
if (!PS(serializer)) {
php_error_docref(NULL, E_WARNING, "Unknown session.serialize_handler. Failed to encode session object");
return NULL;
}
return PS(serializer)->encode();
} else {
php_error_docref(NULL, E_WARNING, "Cannot encode non-existent session");
}
return NULL;
}
/* }}} */
static int php_session_decode(zend_string *data) /* {{{ */
{
if (!PS(serializer)) {
php_error_docref(NULL, E_WARNING, "Unknown session.serialize_handler. Failed to decode session object");
return FAILURE;
}
if (PS(serializer)->decode(ZSTR_VAL(data), ZSTR_LEN(data)) == FAILURE) {
php_session_destroy();
php_session_track_init();
php_error_docref(NULL, E_WARNING, "Failed to decode session object. Session has been destroyed");
return FAILURE;
}
return SUCCESS;
}
/* }}} */
/*
* Note that we cannot use the BASE64 alphabet here, because
* it contains "/" and "+": both are unacceptable for simple inclusion
* into URLs.
*/
static const char hexconvtab[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,-";
static void bin_to_readable(unsigned char *in, size_t inlen, char *out, size_t outlen, char nbits) /* {{{ */
{
unsigned char *p, *q;
unsigned short w;
int mask;
int have;
p = (unsigned char *)in;
q = (unsigned char *)in + inlen;
w = 0;
have = 0;
mask = (1 << nbits) - 1;
while (outlen--) {
if (have < nbits) {
if (p < q) {
w |= *p++ << have;
have += 8;
} else {
/* Should never happen. Input must be large enough. */
ZEND_UNREACHABLE();
break;
}
}
/* consume nbits */
*out++ = hexconvtab[w & mask];
w >>= nbits;
have -= nbits;
}
*out = '\0';
}
/* }}} */
#define PS_EXTRA_RAND_BYTES 60
PHPAPI zend_string *php_session_create_id(PS_CREATE_SID_ARGS) /* {{{ */
{
unsigned char rbuf[PS_MAX_SID_LENGTH + PS_EXTRA_RAND_BYTES];
zend_string *outid;
/* It would be enough to read ceil(sid_length * sid_bits_per_character / 8) bytes here.
* We read sid_length bytes instead for simplicity. */
/* Read additional PS_EXTRA_RAND_BYTES just in case CSPRNG is not safe enough */
if (php_random_bytes_throw(rbuf, PS(sid_length) + PS_EXTRA_RAND_BYTES) == FAILURE) {
return NULL;
}
outid = zend_string_alloc(PS(sid_length), 0);
bin_to_readable(
rbuf, PS(sid_length),
ZSTR_VAL(outid), ZSTR_LEN(outid),
(char)PS(sid_bits_per_character));
return outid;
}
/* }}} */
/* Default session id char validation function allowed by ps_modules.
* If you change the logic here, please also update the error message in
* ps_modules appropriately */
PHPAPI int php_session_valid_key(const char *key) /* {{{ */
{
size_t len;
const char *p;
char c;
int ret = SUCCESS;
for (p = key; (c = *p); p++) {
/* valid characters are a..z,A..Z,0..9 */
if (!((c >= 'a' && c <= 'z')
|| (c >= 'A' && c <= 'Z')
|| (c >= '0' && c <= '9')
|| c == ','
|| c == '-')) {
ret = FAILURE;
break;
}
}
len = p - key;
/* Somewhat arbitrary length limit here, but should be way more than
anyone needs and avoids file-level warnings later on if we exceed MAX_PATH */
if (len == 0 || len > PS_MAX_SID_LENGTH) {
ret = FAILURE;
}
return ret;
}
/* }}} */
static zend_long php_session_gc(bool immediate) /* {{{ */
{
int nrand;
zend_long num = -1;
/* GC must be done before reading session data. */
if ((PS(mod_data) || PS(mod_user_implemented))) {
if (immediate) {
PS(mod)->s_gc(&PS(mod_data), PS(gc_maxlifetime), &num);
return num;
}
nrand = (zend_long) ((float) PS(gc_divisor) * php_combined_lcg());
if (PS(gc_probability) > 0 && nrand < PS(gc_probability)) {
PS(mod)->s_gc(&PS(mod_data), PS(gc_maxlifetime), &num);
}
}
return num;
} /* }}} */
static int php_session_initialize(void) /* {{{ */
{
zend_string *val = NULL;
PS(session_status) = php_session_active;
if (!PS(mod)) {
PS(session_status) = php_session_disabled;
php_error_docref(NULL, E_WARNING, "No storage module chosen - failed to initialize session");
return FAILURE;
}
/* Open session handler first */
if (PS(mod)->s_open(&PS(mod_data), PS(save_path), PS(session_name)) == FAILURE
/* || PS(mod_data) == NULL */ /* FIXME: open must set valid PS(mod_data) with success */
) {
php_session_abort();
if (!EG(exception)) {
php_error_docref(NULL, E_WARNING, "Failed to initialize storage module: %s (path: %s)", PS(mod)->s_name, PS(save_path));
}
return FAILURE;
}
/* If there is no ID, use session module to create one */
if (!PS(id) || !ZSTR_VAL(PS(id))[0]) {
if (PS(id)) {
zend_string_release_ex(PS(id), 0);
}
PS(id) = PS(mod)->s_create_sid(&PS(mod_data));
if (!PS(id)) {
php_session_abort();
if (!EG(exception)) {
zend_throw_error(NULL, "Failed to create session ID: %s (path: %s)", PS(mod)->s_name, PS(save_path));
}
return FAILURE;
}
if (PS(use_cookies)) {
PS(send_cookie) = 1;
}
} else if (PS(use_strict_mode) && PS(mod)->s_validate_sid &&
PS(mod)->s_validate_sid(&PS(mod_data), PS(id)) == FAILURE
) {
if (PS(id)) {
zend_string_release_ex(PS(id), 0);
}
PS(id) = PS(mod)->s_create_sid(&PS(mod_data));
if (!PS(id)) {
PS(id) = php_session_create_id(NULL);
}
if (PS(use_cookies)) {
PS(send_cookie) = 1;
}
}
if (php_session_reset_id() == FAILURE) {
php_session_abort();
return FAILURE;
}
/* Read data */
php_session_track_init();
if (PS(mod)->s_read(&PS(mod_data), PS(id), &val, PS(gc_maxlifetime)) == FAILURE) {
php_session_abort();
/* FYI: Some broken save handlers return FAILURE for non-existent session ID, this is incorrect */
if (!EG(exception)) {
php_error_docref(NULL, E_WARNING, "Failed to read session data: %s (path: %s)", PS(mod)->s_name, PS(save_path));
}
return FAILURE;
}
/* GC must be done after read */
php_session_gc(0);
if (PS(session_vars)) {
zend_string_release_ex(PS(session_vars), 0);
PS(session_vars) = NULL;
}
if (val) {
if (PS(lazy_write)) {
PS(session_vars) = zend_string_copy(val);
}
php_session_decode(val);
zend_string_release_ex(val, 0);
}
return SUCCESS;
}
/* }}} */
static void php_session_save_current_state(int write) /* {{{ */
{
int ret = FAILURE;
if (write) {
IF_SESSION_VARS() {
if (PS(mod_data) || PS(mod_user_implemented)) {
zend_string *val;
val = php_session_encode();
if (val) {
if (PS(lazy_write) && PS(session_vars)
&& PS(mod)->s_update_timestamp
&& PS(mod)->s_update_timestamp != php_session_update_timestamp
&& zend_string_equals(val, PS(session_vars))
) {
ret = PS(mod)->s_update_timestamp(&PS(mod_data), PS(id), val, PS(gc_maxlifetime));
} else {
ret = PS(mod)->s_write(&PS(mod_data), PS(id), val, PS(gc_maxlifetime));
}
zend_string_release_ex(val, 0);
} else {
ret = PS(mod)->s_write(&PS(mod_data), PS(id), ZSTR_EMPTY_ALLOC(), PS(gc_maxlifetime));
}
}
if ((ret == FAILURE) && !EG(exception)) {
if (!PS(mod_user_implemented)) {
php_error_docref(NULL, E_WARNING, "Failed to write session data (%s). Please "
"verify that the current setting of session.save_path "
"is correct (%s)",
PS(mod)->s_name,
PS(save_path));
} else {
php_error_docref(NULL, E_WARNING, "Failed to write session data using user "
"defined save handler. (session.save_path: %s)", PS(save_path));
}
}
}
}
if (PS(mod_data) || PS(mod_user_implemented)) {
PS(mod)->s_close(&PS(mod_data));
}
}
/* }}} */
static void php_session_normalize_vars(void) /* {{{ */
{
PS_ENCODE_VARS;
IF_SESSION_VARS() {
PS_ENCODE_LOOP(
if (Z_TYPE_P(struc) == IS_PTR) {
zval *zv = (zval *)Z_PTR_P(struc);
ZVAL_COPY_VALUE(struc, zv);
ZVAL_UNDEF(zv);
}
);
}
}
/* }}} */
/* *************************
* INI Settings/Handlers *
************************* */
static PHP_INI_MH(OnUpdateSaveHandler) /* {{{ */
{
const ps_module *tmp;
int err_type = E_ERROR;
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
tmp = _php_find_ps_module(ZSTR_VAL(new_value));
if (stage == ZEND_INI_STAGE_RUNTIME) {
err_type = E_WARNING;
}
if (PG(modules_activated) && !tmp) {
/* Do not output error when restoring ini options. */
if (stage != ZEND_INI_STAGE_DEACTIVATE) {
php_error_docref(NULL, err_type, "Session save handler \"%s\" cannot be found", ZSTR_VAL(new_value));
}
return FAILURE;
}
/* "user" save handler should not be set by user */
if (!PS(set_handler) && tmp == ps_user_ptr) {
php_error_docref(NULL, err_type, "Session save handler \"user\" cannot be set by ini_set()");
return FAILURE;
}
PS(default_mod) = PS(mod);
PS(mod) = tmp;
return SUCCESS;
}
/* }}} */
static PHP_INI_MH(OnUpdateSerializer) /* {{{ */
{
const ps_serializer *tmp;
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
tmp = _php_find_ps_serializer(ZSTR_VAL(new_value));
if (PG(modules_activated) && !tmp) {
int err_type;
if (stage == ZEND_INI_STAGE_RUNTIME) {
err_type = E_WARNING;
} else {
err_type = E_ERROR;
}
/* Do not output error when restoring ini options. */
if (stage != ZEND_INI_STAGE_DEACTIVATE) {
php_error_docref(NULL, err_type, "Serialization handler \"%s\" cannot be found", ZSTR_VAL(new_value));
}
return FAILURE;
}
PS(serializer) = tmp;
return SUCCESS;
}
/* }}} */
static PHP_INI_MH(OnUpdateTransSid) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
if (zend_string_equals_literal_ci(new_value, "on")) {
PS(use_trans_sid) = (bool) 1;
} else {
PS(use_trans_sid) = (bool) atoi(ZSTR_VAL(new_value));
}
return SUCCESS;
}
/* }}} */
static PHP_INI_MH(OnUpdateSaveDir) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
/* Only do the safemode/open_basedir check at runtime */
if (stage == PHP_INI_STAGE_RUNTIME || stage == PHP_INI_STAGE_HTACCESS) {
char *p;
if (memchr(ZSTR_VAL(new_value), '\0', ZSTR_LEN(new_value)) != NULL) {
return FAILURE;
}
/* we do not use zend_memrchr() since path can contain ; itself */
if ((p = strchr(ZSTR_VAL(new_value), ';'))) {
char *p2;
p++;
if ((p2 = strchr(p, ';'))) {
p = p2 + 1;
}
} else {
p = ZSTR_VAL(new_value);
}
if (PG(open_basedir) && *p && php_check_open_basedir(p)) {
return FAILURE;
}
}
return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateName) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
/* Numeric session.name won't work at all */
if ((!ZSTR_LEN(new_value) || is_numeric_string(ZSTR_VAL(new_value), ZSTR_LEN(new_value), NULL, NULL, 0))) {
int err_type;
if (stage == ZEND_INI_STAGE_RUNTIME || stage == ZEND_INI_STAGE_ACTIVATE || stage == ZEND_INI_STAGE_STARTUP) {
err_type = E_WARNING;
} else {
err_type = E_ERROR;
}
/* Do not output error when restoring ini options. */
if (stage != ZEND_INI_STAGE_DEACTIVATE) {
php_error_docref(NULL, err_type, "session.name \"%s\" cannot be numeric or empty", ZSTR_VAL(new_value));
}
return FAILURE;
}
return OnUpdateStringUnempty(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateCookieLifetime) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
if (atol(ZSTR_VAL(new_value)) < 0) {
php_error_docref(NULL, E_WARNING, "CookieLifetime cannot be negative");
return FAILURE;
}
return OnUpdateLongGEZero(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateSessionLong) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
return OnUpdateLong(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateSessionString) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateSessionBool) /* {{{ */
{
SESSION_CHECK_OUTPUT_STATE;
SESSION_CHECK_ACTIVE_STATE;
return OnUpdateBool(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateSidLength) /* {{{ */
{
zend_long val;
char *endptr = NULL;
SESSION_CHECK_OUTPUT_STATE;
SESSION_CHECK_ACTIVE_STATE;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (endptr && (*endptr == '\0')
&& val >= 22 && val <= PS_MAX_SID_LENGTH) {
/* Numeric value */
PS(sid_length) = val;
return SUCCESS;
}
php_error_docref(NULL, E_WARNING, "session.configuration \"session.sid_length\" must be between 22 and 256");
return FAILURE;
}
/* }}} */
static PHP_INI_MH(OnUpdateSidBits) /* {{{ */
{
zend_long val;
char *endptr = NULL;
SESSION_CHECK_OUTPUT_STATE;
SESSION_CHECK_ACTIVE_STATE;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (endptr && (*endptr == '\0')
&& val >= 4 && val <=6) {
/* Numeric value */
PS(sid_bits_per_character) = val;
return SUCCESS;
}
php_error_docref(NULL, E_WARNING, "session.configuration \"session.sid_bits_per_character\" must be between 4 and 6");
return FAILURE;
}
/* }}} */
static PHP_INI_MH(OnUpdateLazyWrite) /* {{{ */
{
SESSION_CHECK_ACTIVE_STATE;
SESSION_CHECK_OUTPUT_STATE;
return OnUpdateBool(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateRfc1867Freq) /* {{{ */
{
int tmp;
tmp = zend_atoi(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if(tmp < 0) {
php_error_docref(NULL, E_WARNING, "session.upload_progress.freq must be greater than or equal to 0");
return FAILURE;
}
if(ZSTR_LEN(new_value) > 0 && ZSTR_VAL(new_value)[ZSTR_LEN(new_value)-1] == '%') {
if(tmp > 100) {
php_error_docref(NULL, E_WARNING, "session.upload_progress.freq must be less than or equal to 100%%");
return FAILURE;
}
PS(rfc1867_freq) = -tmp;
} else {
PS(rfc1867_freq) = tmp;
}
return SUCCESS;
} /* }}} */
/* {{{ PHP_INI */
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("session.save_path", "", PHP_INI_ALL, OnUpdateSaveDir, save_path, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.name", "PHPSESSID", PHP_INI_ALL, OnUpdateName, session_name, php_ps_globals, ps_globals)
PHP_INI_ENTRY("session.save_handler", "files", PHP_INI_ALL, OnUpdateSaveHandler)
STD_PHP_INI_BOOLEAN("session.auto_start", "0", PHP_INI_PERDIR, OnUpdateBool, auto_start, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.gc_probability", "1", PHP_INI_ALL, OnUpdateSessionLong, gc_probability, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.gc_divisor", "100", PHP_INI_ALL, OnUpdateSessionLong, gc_divisor, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.gc_maxlifetime", "1440", PHP_INI_ALL, OnUpdateSessionLong, gc_maxlifetime, php_ps_globals, ps_globals)
PHP_INI_ENTRY("session.serialize_handler", "php", PHP_INI_ALL, OnUpdateSerializer)
STD_PHP_INI_ENTRY("session.cookie_lifetime", "0", PHP_INI_ALL, OnUpdateCookieLifetime,cookie_lifetime, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cookie_path", "/", PHP_INI_ALL, OnUpdateSessionString, cookie_path, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cookie_domain", "", PHP_INI_ALL, OnUpdateSessionString, cookie_domain, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cookie_secure", "0", PHP_INI_ALL, OnUpdateSessionBool, cookie_secure, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cookie_httponly", "0", PHP_INI_ALL, OnUpdateSessionBool, cookie_httponly, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cookie_samesite", "", PHP_INI_ALL, OnUpdateString, cookie_samesite, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.use_cookies", "1", PHP_INI_ALL, OnUpdateSessionBool, use_cookies, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.use_only_cookies", "1", PHP_INI_ALL, OnUpdateSessionBool, use_only_cookies, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.use_strict_mode", "0", PHP_INI_ALL, OnUpdateSessionBool, use_strict_mode, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.referer_check", "", PHP_INI_ALL, OnUpdateSessionString, extern_referer_chk, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cache_limiter", "nocache", PHP_INI_ALL, OnUpdateSessionString, cache_limiter, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.cache_expire", "180", PHP_INI_ALL, OnUpdateSessionLong, cache_expire, php_ps_globals, ps_globals)
PHP_INI_ENTRY("session.use_trans_sid", "0", PHP_INI_ALL, OnUpdateTransSid)
PHP_INI_ENTRY("session.sid_length", "32", PHP_INI_ALL, OnUpdateSidLength)
PHP_INI_ENTRY("session.sid_bits_per_character", "4", PHP_INI_ALL, OnUpdateSidBits)
STD_PHP_INI_BOOLEAN("session.lazy_write", "1", PHP_INI_ALL, OnUpdateLazyWrite, lazy_write, php_ps_globals, ps_globals)
/* Upload progress */
STD_PHP_INI_BOOLEAN("session.upload_progress.enabled",
"1", ZEND_INI_PERDIR, OnUpdateBool, rfc1867_enabled, php_ps_globals, ps_globals)
STD_PHP_INI_BOOLEAN("session.upload_progress.cleanup",
"1", ZEND_INI_PERDIR, OnUpdateBool, rfc1867_cleanup, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.upload_progress.prefix",
"upload_progress_", ZEND_INI_PERDIR, OnUpdateString, rfc1867_prefix, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.upload_progress.name",
"PHP_SESSION_UPLOAD_PROGRESS", ZEND_INI_PERDIR, OnUpdateString, rfc1867_name, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.upload_progress.freq", "1%", ZEND_INI_PERDIR, OnUpdateRfc1867Freq, rfc1867_freq, php_ps_globals, ps_globals)
STD_PHP_INI_ENTRY("session.upload_progress.min_freq",
"1", ZEND_INI_PERDIR, OnUpdateReal, rfc1867_min_freq,php_ps_globals, ps_globals)
/* Commented out until future discussion */
/* PHP_INI_ENTRY("session.encode_sources", "globals,track", PHP_INI_ALL, NULL) */
PHP_INI_END()
/* }}} */
/* ***************
* Serializers *
*************** */
PS_SERIALIZER_ENCODE_FUNC(php_serialize) /* {{{ */
{
smart_str buf = {0};
php_serialize_data_t var_hash;
IF_SESSION_VARS() {
PHP_VAR_SERIALIZE_INIT(var_hash);
php_var_serialize(&buf, Z_REFVAL(PS(http_session_vars)), &var_hash);
PHP_VAR_SERIALIZE_DESTROY(var_hash);
}
return buf.s;
}
/* }}} */
PS_SERIALIZER_DECODE_FUNC(php_serialize) /* {{{ */
{
const char *endptr = val + vallen;
zval session_vars;
php_unserialize_data_t var_hash;
int result;
zend_string *var_name = zend_string_init("_SESSION", sizeof("_SESSION") - 1, 0);
ZVAL_NULL(&session_vars);
PHP_VAR_UNSERIALIZE_INIT(var_hash);
result = php_var_unserialize(
&session_vars, (const unsigned char **)&val, (const unsigned char *)endptr, &var_hash);
PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
if (!result) {
zval_ptr_dtor(&session_vars);
ZVAL_NULL(&session_vars);
}
if (!Z_ISUNDEF(PS(http_session_vars))) {
zval_ptr_dtor(&PS(http_session_vars));
}
if (Z_TYPE(session_vars) == IS_NULL) {
array_init(&session_vars);
}
ZVAL_NEW_REF(&PS(http_session_vars), &session_vars);
Z_ADDREF_P(&PS(http_session_vars));
zend_hash_update_ind(&EG(symbol_table), var_name, &PS(http_session_vars));
zend_string_release_ex(var_name, 0);
return result || !vallen ? SUCCESS : FAILURE;
}
/* }}} */
#define PS_BIN_NR_OF_BITS 8
#define PS_BIN_UNDEF (1<<(PS_BIN_NR_OF_BITS-1))
#define PS_BIN_MAX (PS_BIN_UNDEF-1)
PS_SERIALIZER_ENCODE_FUNC(php_binary) /* {{{ */
{
smart_str buf = {0};
php_serialize_data_t var_hash;
PS_ENCODE_VARS;
PHP_VAR_SERIALIZE_INIT(var_hash);
PS_ENCODE_LOOP(
if (ZSTR_LEN(key) > PS_BIN_MAX) continue;
smart_str_appendc(&buf, (unsigned char)ZSTR_LEN(key));
smart_str_appendl(&buf, ZSTR_VAL(key), ZSTR_LEN(key));
php_var_serialize(&buf, struc, &var_hash);
);
smart_str_0(&buf);
PHP_VAR_SERIALIZE_DESTROY(var_hash);
return buf.s;
}
/* }}} */
PS_SERIALIZER_DECODE_FUNC(php_binary) /* {{{ */
{
const char *p;
const char *endptr = val + vallen;
int namelen;
zend_string *name;
php_unserialize_data_t var_hash;
zval *current, rv;
PHP_VAR_UNSERIALIZE_INIT(var_hash);
for (p = val; p < endptr; ) {
namelen = ((unsigned char)(*p)) & (~PS_BIN_UNDEF);
if (namelen < 0 || namelen > PS_BIN_MAX || (p + namelen) >= endptr) {
PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
return FAILURE;
}
name = zend_string_init(p + 1, namelen, 0);
p += namelen + 1;
current = var_tmp_var(&var_hash);
if (php_var_unserialize(current, (const unsigned char **) &p, (const unsigned char *) endptr, &var_hash)) {
ZVAL_PTR(&rv, current);
php_set_session_var(name, &rv, &var_hash);
} else {
zend_string_release_ex(name, 0);
php_session_normalize_vars();
PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
return FAILURE;
}
zend_string_release_ex(name, 0);
}
php_session_normalize_vars();
PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
return SUCCESS;
}
/* }}} */
#define PS_DELIMITER '|'
PS_SERIALIZER_ENCODE_FUNC(php) /* {{{ */
{
smart_str buf = {0};
php_serialize_data_t var_hash;
PS_ENCODE_VARS;
PHP_VAR_SERIALIZE_INIT(var_hash);
PS_ENCODE_LOOP(
smart_str_appendl(&buf, ZSTR_VAL(key), ZSTR_LEN(key));
if (memchr(ZSTR_VAL(key), PS_DELIMITER, ZSTR_LEN(key))) {
PHP_VAR_SERIALIZE_DESTROY(var_hash);
smart_str_free(&buf);
return NULL;
}
smart_str_appendc(&buf, PS_DELIMITER);
php_var_serialize(&buf, struc, &var_hash);
);
smart_str_0(&buf);
PHP_VAR_SERIALIZE_DESTROY(var_hash);
return buf.s;
}
/* }}} */
PS_SERIALIZER_DECODE_FUNC(php) /* {{{ */
{
const char *p, *q;
const char *endptr = val + vallen;
ptrdiff_t namelen;
zend_string *name;
int retval = SUCCESS;
php_unserialize_data_t var_hash;
zval *current, rv;
PHP_VAR_UNSERIALIZE_INIT(var_hash);
p = val;
while (p < endptr) {
q = p;
while (*q != PS_DELIMITER) {
if (++q >= endptr) {
retval = FAILURE;
goto break_outer_loop;
}