Created
August 24, 2011 09:42
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<?php | |
/** | |
* Initializes the session handler, starting a session if needed. | |
*/ | |
function drupal_session_initialize() { | |
global $user, $is_https; | |
session_set_save_handler('_drupal_session_open', '_drupal_session_close', '_drupal_session_read', '_drupal_session_write', '_drupal_session_destroy', '_drupal_session_garbage_collection'); | |
// We use !empty() in the following check to ensure that blank session IDs | |
// are not valid. | |
if (!empty($_COOKIE[session_name()]) || ($is_https && variable_get('https', FALSE) && !empty($_COOKIE[substr(session_name(), 1)]))) { | |
// If a session cookie exists, initialize the session. Otherwise the | |
// session is only started on demand in drupal_session_commit(), making | |
// anonymous users not use a session cookie unless something is stored in | |
// $_SESSION. This allows HTTP proxies to cache anonymous pageviews. | |
drupal_session_start(); | |
if (!empty($user->uid) || !empty($_SESSION)) { | |
drupal_page_is_cacheable(FALSE); | |
} | |
} | |
else { | |
// Set a session identifier for this request. This is necessary because | |
// we lazily start sessions at the end of this request, and some | |
// processes (like drupal_get_token()) needs to know the future | |
// session ID in advance. | |
$user = drupal_anonymous_user(); | |
// Less random sessions (which are much faster to generate) are used for | |
// anonymous users than are generated in drupal_session_regenerate() when | |
// a user becomes authenticated. | |
session_id(drupal_hash_base64(uniqid(mt_rand(), TRUE))); | |
} | |
date_default_timezone_set(drupal_get_user_timezone()); | |
} |
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