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Merge branch 'PHP-5.6' into PHP-7.0

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* PHP-5.6:
  Improved fix for bug #68063 (Empty session IDs do still start sessions).
This commit is contained in:
Yasuo Ohgaki 2016-01-15 10:19:01 +09:00
commit 132d919c85
3 changed files with 14 additions and 11 deletions
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1
NEWS
View file

@ -44,6 +44,7 @@ PHP NEWS
immediately). (Laruence)
- Session:
. Improved fix for bug #68063 (Empty session IDs do still start sessions). (Yasuo)
. Fixed bug #71038 (session_start() returns TRUE on failure).
Session save handlers must return 'string' always for successful read.
i.e. Non-existing session read must return empty string. PHP 7.0 is made

10
ext/session/session.c
View file

@ -522,7 +522,10 @@ static void php_session_initialize(void) /* {{{ */
}
/* If there is no ID, use session module to create one */
if (!PS(id)) {
if (!PS(id) || !ZSTR_VAL(PS(id))[0]) {
if (PS(id)) {
efree(PS(id));
}
PS(id) = PS(mod)->s_create_sid(&PS(mod_data));
if (!PS(id)) {
php_session_abort();
@ -2282,11 +2285,6 @@ static PHP_FUNCTION(session_start)
RETURN_FALSE;
}
if (PS(id) && !(ZSTR_LEN(PS(id)))) {
php_error_docref(NULL, E_WARNING, "Cannot start session with empty session ID");
RETURN_FALSE;
}
/* set options */
if (options) {
ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(options), num_idx, str_idx, value) {

14
ext/session/tests/bug68063.phpt
View file

@ -3,18 +3,22 @@ Bug #68063 (Empty session IDs do still start sessions)
--SKIPIF--
<?php include('skipif.inc'); ?>
--INI--
session.use_strict_mode=0
session.hash_function=1
session.hash_bits_per_character=4
--FILE--
<?php
// Empty session ID may happen by browser bugs
// Could also be set with a cookie like "PHPSESSID=; path=/"
session_id('');
// Will still start the session and return true
// Start the session with empty string should result in new session ID
var_dump(session_start());
// Returns an empty string
// Returns newly created session ID
var_dump(session_id());
?>
--EXPECTF--
Warning: session_start(): Cannot start session with empty session ID in %s on line %d
bool(false)
string(0) ""
bool(true)
string(40) "%s"