Add DateTimeZone's __serialize and __unserialize methods

ext/date/php_date.c

@@ -1969,10 +1969,20 @@ static void php_timezone_to_string(php_timezone_obj *tzobj, zval *zv)
 	}
 }
 
+void date_timezone_object_to_hash(php_timezone_obj *tzobj, HashTable *props)
+{
+	zval zv;
+
+	ZVAL_LONG(&zv, tzobj->type);
+	zend_hash_str_update(props, "timezone_type", strlen("timezone_type"), &zv);
+
+	php_timezone_to_string(tzobj, &zv);
+	zend_hash_str_update(props, "timezone", strlen("timezone"), &zv);
+}
+
 static HashTable *date_object_get_properties_for_timezone(zend_object *object, zend_prop_purpose purpose) /* {{{ */
 {
 	HashTable *props;
-	zval zv;
 	php_timezone_obj *tzobj;
 
 	switch (purpose) {
@@ -1992,11 +2002,7 @@ static HashTable *date_object_get_properties_for_timezone(zend_object *object, z
 		return props;
 	}
 
-	ZVAL_LONG(&zv, tzobj->type);
-	zend_hash_str_update(props, "timezone_type", sizeof("timezone_type")-1, &zv);
-
-	php_timezone_to_string(tzobj, &zv);
-	zend_hash_str_update(props, "timezone", sizeof("timezone")-1, &zv);
+	date_timezone_object_to_hash(tzobj, props);
 
 	return props;
 } /* }}} */
@@ -3500,7 +3506,7 @@ PHP_FUNCTION(date_diff)
 }
 /* }}} */
 
-static zend_result timezone_initialize(php_timezone_obj *tzobj, const char *tz, size_t tz_len) /* {{{ */
+static bool timezone_initialize(php_timezone_obj *tzobj, const char *tz, size_t tz_len) /* {{{ */
 {
 	timelib_time *dummy_t = ecalloc(1, sizeof(timelib_time));
 	int           dst, not_found;
@@ -3509,19 +3515,19 @@ static zend_result timezone_initialize(php_timezone_obj *tzobj, const char *tz,
 	if (strlen(tz) != tz_len) {
 		php_error_docref(NULL, E_WARNING, "Timezone must not contain null bytes");
 		efree(dummy_t);
-		return FAILURE;
+		return false;
 	}
 
 	dummy_t->z = timelib_parse_zone(&tz, &dst, dummy_t, &not_found, DATE_TIMEZONEDB, php_date_parse_tzfile_wrapper);
 	if (not_found) {
 		php_error_docref(NULL, E_WARNING, "Unknown or bad timezone (%s)", orig_tz);
 		efree(dummy_t);
-		return FAILURE;
+		return false;
 	} else {
 		set_timezone_from_timelib_time(tzobj, dummy_t);
 		timelib_free(dummy_t->tz_abbr);
 		efree(dummy_t);
-		return SUCCESS;
+		return true;
 	}
 } /* }}} */
 
@@ -3536,7 +3542,7 @@ PHP_FUNCTION(timezone_open)
 	ZEND_PARSE_PARAMETERS_END();
 
 	tzobj = Z_PHPTIMEZONE_P(php_date_instantiate(date_ce_timezone, return_value));
-	if (FAILURE == timezone_initialize(tzobj, ZSTR_VAL(tz), ZSTR_LEN(tz))) {
+	if (!timezone_initialize(tzobj, ZSTR_VAL(tz), ZSTR_LEN(tz))) {
 		zval_ptr_dtor(return_value);
 		RETURN_FALSE;
 	}
@@ -3561,25 +3567,25 @@ PHP_METHOD(DateTimeZone, __construct)
 }
 /* }}} */
 
-static zend_result php_date_timezone_initialize_from_hash(zval **return_value, php_timezone_obj **tzobj, HashTable *myht) /* {{{ */
+static bool php_date_timezone_initialize_from_hash(zval **return_value, php_timezone_obj **tzobj, HashTable *myht) /* {{{ */
 {
 	zval            *z_timezone_type;
 
 	if ((z_timezone_type = zend_hash_str_find(myht, "timezone_type", sizeof("timezone_type") - 1)) == NULL) {
-		return FAILURE;
+		return false;
 	}
 
 	zval *z_timezone;
 
 	if ((z_timezone = zend_hash_str_find(myht, "timezone", sizeof("timezone") - 1)) == NULL) {
-		return FAILURE;
+		return false;
 	}
 
 	if (Z_TYPE_P(z_timezone_type) != IS_LONG) {
-		return FAILURE;
+		return false;
 	}
 	if (Z_TYPE_P(z_timezone) != IS_STRING) {
-		return FAILURE;
+		return false;
 	}
 	return timezone_initialize(*tzobj, Z_STRVAL_P(z_timezone), Z_STRLEN_P(z_timezone));
 } /* }}} */
@@ -3599,7 +3605,7 @@ PHP_METHOD(DateTimeZone, __set_state)
 
 	php_date_instantiate(date_ce_timezone, return_value);
 	tzobj = Z_PHPTIMEZONE_P(return_value);
-	if (php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht) == FAILURE) {
+	if (!php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht)) {
 		zend_throw_error(NULL, "Timezone initialization failed");
 		zval_ptr_dtor(return_value);
 	}
@@ -3619,12 +3625,51 @@ PHP_METHOD(DateTimeZone, __wakeup)
 
 	myht = Z_OBJPROP_P(object);
 
-	if (php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht) == FAILURE) {
+	if (!php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht)) {
 		zend_throw_error(NULL, "Timezone initialization failed");
 	}
 }
 /* }}} */
 
+/* {{{ */
+PHP_METHOD(DateTimeZone, __serialize)
+{
+	zval             *object = ZEND_THIS;
+	php_timezone_obj *tzobj;
+	HashTable        *myht;
+
+	ZEND_PARSE_PARAMETERS_NONE();
+
+	tzobj = Z_PHPTIMEZONE_P(object);
+	DATE_CHECK_INITIALIZED(tzobj->initialized, DateTimeZone);
+
+	array_init(return_value);
+	myht = Z_ARRVAL_P(return_value);
+	date_timezone_object_to_hash(tzobj, myht);
+}
+/* }}} */
+
+/* {{{ */
+PHP_METHOD(DateTimeZone, __unserialize)
+{
+	zval             *object = ZEND_THIS;
+	php_timezone_obj *tzobj;
+	zval             *array;
+	HashTable        *myht;
+
+	ZEND_PARSE_PARAMETERS_START(1, 1)
+		Z_PARAM_ARRAY(array)
+	ZEND_PARSE_PARAMETERS_END();
+
+	tzobj = Z_PHPTIMEZONE_P(object);
+	myht = Z_ARRVAL_P(array);
+
+	if (!php_date_timezone_initialize_from_hash(&object, &tzobj, myht)) {
+		zend_throw_error(NULL, "Invalid serialization data for DateTimeZone object");
+	}
+}
+/* }}} */
+
 /* {{{ Returns the name of the timezone. */
 PHP_FUNCTION(timezone_name_get)
 {

ext/date/php_date.stub.php

@@ -453,6 +453,10 @@ class DateTimeZone
      */
     public static function listIdentifiers(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null): array {}
 
+    public function __serialize(): array {}
+
+    public function __unserialize(array $data): void {}
+
     /** @tentative-return-type */
     public function __wakeup(): void {}
 

ext/date/php_date_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: ea354510fbf64c42ee1cdd6fd786ab937516226c */
+ * Stub hash: a157de6bca4bcf5a9ddace9e81ef700f132b4dda */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_strtotime, 0, 1, MAY_BE_LONG|MAY_BE_FALSE)
 	ZEND_ARG_TYPE_INFO(0, datetime, IS_STRING, 0)
@@ -431,6 +431,10 @@ ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_DateTimeZone_lis
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, countryCode, IS_STRING, 1, "null")
 ZEND_END_ARG_INFO()
 
+#define arginfo_class_DateTimeZone___serialize arginfo_timezone_abbreviations_list
+
+#define arginfo_class_DateTimeZone___unserialize arginfo_class_DateTimeInterface___unserialize
+
 #define arginfo_class_DateTimeZone___wakeup arginfo_class_DateTimeInterface___wakeup
 
 ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_OBJ_INFO_EX(arginfo_class_DateTimeZone___set_state, 0, 1, DateTimeZone, 0)
@@ -553,6 +557,8 @@ ZEND_METHOD(DateTimeImmutable, setTimestamp);
 ZEND_METHOD(DateTimeImmutable, createFromMutable);
 ZEND_METHOD(DateTimeImmutable, createFromInterface);
 ZEND_METHOD(DateTimeZone, __construct);
+ZEND_METHOD(DateTimeZone, __serialize);
+ZEND_METHOD(DateTimeZone, __unserialize);
 ZEND_METHOD(DateTimeZone, __wakeup);
 ZEND_METHOD(DateTimeZone, __set_state);
 ZEND_METHOD(DateInterval, __construct);
@@ -696,6 +702,8 @@ static const zend_function_entry class_DateTimeZone_methods[] = {
 	ZEND_ME_MAPPING(getLocation, timezone_location_get, arginfo_class_DateTimeZone_getLocation, ZEND_ACC_PUBLIC)
 	ZEND_ME_MAPPING(listAbbreviations, timezone_abbreviations_list, arginfo_class_DateTimeZone_listAbbreviations, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
 	ZEND_ME_MAPPING(listIdentifiers, timezone_identifiers_list, arginfo_class_DateTimeZone_listIdentifiers, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
+	ZEND_ME(DateTimeZone, __serialize, arginfo_class_DateTimeZone___serialize, ZEND_ACC_PUBLIC)
+	ZEND_ME(DateTimeZone, __unserialize, arginfo_class_DateTimeZone___unserialize, ZEND_ACC_PUBLIC)
 	ZEND_ME(DateTimeZone, __wakeup, arginfo_class_DateTimeZone___wakeup, ZEND_ACC_PUBLIC)
 	ZEND_ME(DateTimeZone, __set_state, arginfo_class_DateTimeZone___set_state, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
 	ZEND_FE_END

ext/date/tests/DateTimeZone_serialisation.phpt

@@ -0,0 +1,58 @@
+--TEST--
+Test DateTimeZone::__serialize and DateTime::__unserialize
+--FILE--
+<?php
+$tz = new DateTimeZone("CEST");
+var_dump($tz->__serialize());
+
+$tz = new DateTimeZone("UTC");
+$tz->__unserialize(
+	[
+		'timezone_type' => 3,
+		'timezone' => 'Europe/London',
+	]
+);
+var_dump($tz);
+
+$tz->__unserialize(
+	[
+		'timezone_type' => 2,
+		'timezone' => 'CEST',
+	]
+);
+var_dump($tz);
+
+$tz->__unserialize(
+	[
+		'timezone_type' => 1,
+		'timezone' => '+0130',
+	]
+);
+var_dump($tz);
+
+?>
+--EXPECTF--
+array(2) {
+  ["timezone_type"]=>
+  int(2)
+  ["timezone"]=>
+  string(4) "CEST"
+}
+object(DateTimeZone)#%d (%d) {
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+object(DateTimeZone)#%d (%d) {
+  ["timezone_type"]=>
+  int(2)
+  ["timezone"]=>
+  string(4) "CEST"
+}
+object(DateTimeZone)#%d (%d) {
+  ["timezone_type"]=>
+  int(1)
+  ["timezone"]=>
+  string(6) "+01:30"
+}

ext/date/tests/DateTimeZone_serialize_errors.phpt

@@ -0,0 +1,15 @@
+--TEST--
+Test unserialization of DateTimeZone with null byte 
+--FILE--
+<?php
+$serialized = 'O:12:"DateTimeZone":2:{s:13:"timezone_type";i:3;s:8:"timezone";s:17:"Ame' . "\0" .'rica/New_York";}';
+
+try {
+	$tz = unserialize($serialized);
+} catch (Throwable $e) {
+	echo $e->getMessage(), "\n";
+}
+?>
+--EXPECTF--
+Warning: DateTimeZone::__unserialize(): Timezone must not contain null bytes in %s on line %d
+Invalid serialization data for DateTimeZone object

ext/date/tests/bug68942.phpt

@@ -6,9 +6,9 @@ $data = unserialize('a:2:{i:0;O:12:"DateTimeZone":2:{s:13:"timezone_type";a:2:{i
 var_dump($data);
 ?>
 --EXPECTF--
-Fatal error: Uncaught Error: Timezone initialization failed in %s:%d
+Fatal error: Uncaught Error: Invalid serialization data for DateTimeZone object in %s:%d
 Stack trace:
-#0 [internal function]: DateTimeZone->__wakeup()
+#0 [internal function]: DateTimeZone->__unserialize(Array)
 #1 %s(%d): unserialize('a:2:{i:0;O:12:"...')
 #2 {main}
   thrown in %s on line %d