diff options
Diffstat (limited to 'ext/session/session.c')
| -rw-r--r-- | ext/session/session.c | 130 |
1 files changed, 129 insertions, 1 deletions
diff --git a/ext/session/session.c b/ext/session/session.c index 7bb6584621..5b4820a65c 100644 --- a/ext/session/session.c +++ b/ext/session/session.c @@ -505,8 +505,17 @@ static void php_session_initialize(TSRMLS_D) /* {{{ */ */ } if (val) { + PHP_MD5_CTX context; + + /* Store read data's MD5 hash */ + PHP_MD5Init(&context); + PHP_MD5Update(&context, val, vallen); + PHP_MD5Final(PS(session_data_hash), &context); + php_session_decode(val, vallen TSRMLS_CC); efree(val); + } else { + memset(PS(session_data_hash),'\0', 16); } if (!PS(use_cookies) && PS(send_cookie)) { @@ -529,7 +538,19 @@ static void php_session_save_current_state(TSRMLS_D) /* {{{ */ val = php_session_encode(&vallen TSRMLS_CC); if (val) { - ret = PS(mod)->s_write(&PS(mod_data), PS(id), val, vallen TSRMLS_CC); + PHP_MD5_CTX context; + unsigned char digest[16]; + + /* Generate data's MD5 hash */ + PHP_MD5Init(&context); + PHP_MD5Update(&context, val, vallen); + PHP_MD5Final(digest, &context); + /* Write only when save is required */ + if (memcmp(digest, PS(session_data_hash), 16)) { + ret = PS(mod)->s_write(&PS(mod_data), PS(id), val, vallen TSRMLS_CC); + } else { + ret = SUCCESS; + } efree(val); } else { ret = PS(mod)->s_write(&PS(mod_data), PS(id), "", 0 TSRMLS_CC); @@ -727,6 +748,7 @@ static PHP_INI_MH(OnUpdateHashFunc) /* {{{ */ } #endif /* HAVE_HASH_EXT }}} */ + php_error_docref(NULL TSRMLS_CC, E_WARNING, "session.configuration 'session.hash_function' must be existing hash function. %s does not exist.", new_value); return FAILURE; } /* }}} */ @@ -1567,6 +1589,26 @@ static void php_session_flush(TSRMLS_D) /* {{{ */ } /* }}} */ +static void php_session_abort(TSRMLS_D) /* {{{ */ +{ + if (PS(session_status) == php_session_active) { + PS(session_status) = php_session_none; + if (PS(mod_data) || PS(mod_user_implemented)) { + PS(mod)->s_close(&PS(mod_data) TSRMLS_CC); + } + } +} +/* }}} */ + +static void php_session_reset(TSRMLS_D) /* {{{ */ +{ + if (PS(session_status) == php_session_active) { + php_session_initialize(TSRMLS_C); + } +} +/* }}} */ + + PHPAPI void session_adapt_url(const char *url, size_t urllen, char **new, size_t *newlen TSRMLS_DC) /* {{{ */ { if (PS(apply_trans_sid) && (PS(session_status) == php_session_active)) { @@ -1685,6 +1727,31 @@ static PHP_FUNCTION(session_module_name) } /* }}} */ +/* {{{ proto mixed session_serializer_name([string newname]) + Return the current serializer name used for encode/decode session data. If newname is given, the serialzer name is replaced with newname and return bool */ +static PHP_FUNCTION(session_serializer_name) +{ + char *name = NULL; + int name_len; + + if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) { + return; + } + + /* Return serializer name */ + if (!name) { + RETURN_STRING(zend_ini_string("session.serialize_handler", sizeof("session.serialize_handler"), 0), 1); + } + + /* Set serializer name */ + if (zend_alter_ini_entry("session.serialize_handler", sizeof("session.serialize_handler"), name, name_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME) == SUCCESS) { + RETURN_TRUE; + } else { + RETURN_FALSE; + } +} +/* }}} */ + /* {{{ proto void session_set_save_handler(string open, string close, string read, string write, string destroy, string gc, string create_sid) Sets user-level functions */ static PHP_FUNCTION(session_set_save_handler) @@ -2048,6 +2115,22 @@ static PHP_FUNCTION(session_write_close) } /* }}} */ +/* {{{ proto void session_abort(void) + Abort session and end session. Session data will not be written */ +static PHP_FUNCTION(session_abort) +{ + php_session_abort(TSRMLS_C); +} +/* }}} */ + +/* {{{ proto void session_reset(void) + Reset session data from saved session data */ +static PHP_FUNCTION(session_reset) +{ + php_session_reset(TSRMLS_C); +} +/* }}} */ + /* {{{ proto int session_status(void) Returns the current session status */ static PHP_FUNCTION(session_status) @@ -2060,6 +2143,39 @@ static PHP_FUNCTION(session_status) } /* }}} */ +/* {{{ proto int session_gc([int maxlifetime]) + Execute garbage collection returns number of deleted data */ +static PHP_FUNCTION(session_gc) +{ + int nrdels = -1; + long maxlifetime = PS(gc_maxlifetime); + + if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &maxlifetime) == FAILURE) { + return; + } + + /* Session must be active to have PS(mod) */ + if (PS(session_status) != php_session_active) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Trying to garbage collect without active session"); + RETURN_FALSE; + } + + if (!PS(mod) || !PS(mod)->s_gc) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Session save handler does not have gc()"); + RETURN_FALSE; + } + PS(mod)->s_gc(&PS(mod_data), maxlifetime, &nrdels TSRMLS_CC); + + if (nrdels < 0) { + /* Files save handler return -1 if there is not a permission to remove. + Save handlder should return negative nrdels when something wrong. */ + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Session gc failed. Check permission or session storage"); + RETURN_FALSE; + } + RETURN_LONG((long)nrdels); +} +/* }}} */ + /* {{{ proto void session_register_shutdown(void) Registers session_write_close() as a shutdown function */ static PHP_FUNCTION(session_register_shutdown) @@ -2106,6 +2222,10 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_session_module_name, 0, 0, 0) ZEND_ARG_INFO(0, module) ZEND_END_ARG_INFO() +ZEND_BEGIN_ARG_INFO_EX(arginfo_session_serializer_name, 0, 0, 0) + ZEND_ARG_INFO(0, module) +ZEND_END_ARG_INFO() + ZEND_BEGIN_ARG_INFO_EX(arginfo_session_save_path, 0, 0, 0) ZEND_ARG_INFO(0, path) ZEND_END_ARG_INFO() @@ -2151,6 +2271,10 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_session_set_cookie_params, 0, 0, 1) ZEND_ARG_INFO(0, httponly) ZEND_END_ARG_INFO() +ZEND_BEGIN_ARG_INFO(arginfo_session_gc, 0) + ZEND_ARG_INFO(0, maxlifetime) +ZEND_END_ARG_INFO() + ZEND_BEGIN_ARG_INFO(arginfo_session_class_open, 0) ZEND_ARG_INFO(0, save_path) ZEND_ARG_INFO(0, session_name) @@ -2185,6 +2309,7 @@ ZEND_END_ARG_INFO() static const zend_function_entry session_functions[] = { PHP_FE(session_name, arginfo_session_name) PHP_FE(session_module_name, arginfo_session_module_name) + PHP_FE(session_serializer_name, arginfo_session_serializer_name) PHP_FE(session_save_path, arginfo_session_save_path) PHP_FE(session_id, arginfo_session_id) PHP_FE(session_regenerate_id, arginfo_session_regenerate_id) @@ -2199,7 +2324,10 @@ static const zend_function_entry session_functions[] = { PHP_FE(session_set_cookie_params, arginfo_session_set_cookie_params) PHP_FE(session_get_cookie_params, arginfo_session_void) PHP_FE(session_write_close, arginfo_session_void) + PHP_FE(session_abort, arginfo_session_void) + PHP_FE(session_reset, arginfo_session_void) PHP_FE(session_status, arginfo_session_void) + PHP_FE(session_gc, arginfo_session_gc) PHP_FE(session_register_shutdown, arginfo_session_void) PHP_FALIAS(session_commit, session_write_close, arginfo_session_void) PHP_FE_END |