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-rw-r--r--include/functions_session.inc.php63
1 files changed, 39 insertions, 24 deletions
diff --git a/include/functions_session.inc.php b/include/functions_session.inc.php
index a92deb7a4..ce66e3a30 100644
--- a/include/functions_session.inc.php
+++ b/include/functions_session.inc.php
@@ -31,7 +31,7 @@
// "Er4Tgh6", "Rrp08P", "54gj"
// input : none (using global variable)
// output : $key
-function generate_key()
+function generate_key($size)
{
global $conf;
@@ -44,7 +44,7 @@ function generate_key()
$init = substr( $init, 0, 8 );
mt_srand( $init );
$key = '';
- for ( $i = 0; $i < $conf['session_id_size']; $i++ )
+ for ( $i = 0; $i < $size; $i++ )
{
$c = mt_rand( 0, 2 );
if ( $c == 0 ) $key .= chr( mt_rand( 65, 90 ) );
@@ -54,38 +54,53 @@ function generate_key()
return $key;
}
-// The function create_session finds a non-already-used session key and
-// returns it once found for the given user.
-function session_create( $username )
+/**
+ * create a new session and returns the session identifier
+ *
+ * - find a non-already-used session key
+ * - create a session in database
+ * - return session identifier
+ *
+ * @param int userid
+ * @param string method : cookie or URI
+ * @param int session_lentgh : in seconds
+ * @return string
+ */
+function session_create($userid, $method, $session_length)
{
global $conf;
+
// 1. searching an unused session key
$id_found = false;
- while ( !$id_found )
+ while (!$id_found)
{
- $generated_id = generate_key();
- $query = 'select id';
- $query.= ' from '.PREFIX_TABLE.'sessions';
- $query.= " where id = '".$generated_id."';";
- $result = mysql_query( $query );
- if ( mysql_num_rows( $result ) == 0 )
+ $generated_id = generate_key($conf['session_id_size_'.$method]);
+ $query = '
+SELECT id
+ FROM '.SESSIONS_TABLE.'
+ WHERE id = \''.$generated_id.'\'
+;';
+ $result = mysql_query($query);
+ if (mysql_num_rows($result) == 0)
{
$id_found = true;
}
}
- // 2. retrieving id of the username given in parameter
- $query = 'select id';
- $query.= ' from '.USERS_TABLE;
- $query.= " where username = '".$username."';";
- $row = mysql_fetch_array( mysql_query( $query ) );
- $user_id = $row['id'];
// 3. inserting session in database
- $expiration = $conf['session_time'] * 60 + time();
- $query = 'insert into '.PREFIX_TABLE.'sessions';
- $query.= ' (id,user_id,expiration,ip) values';
- $query.= "('".$generated_id."','".$user_id;
- $query.= "','".$expiration."','".$_SERVER['REMOTE_ADDR']."');";
- mysql_query( $query );
+ $expiration = $session_length + time();
+ $query = '
+INSERT INTO '.SESSIONS_TABLE.'
+ (id,user_id,expiration,ip)
+ VALUES
+ (\''.$generated_id.'\','.$userid.','.$expiration.',
+ \''.$_SERVER['REMOTE_ADDR'].'\')
+;';
+ mysql_query($query);
+
+ if ($method == 'cookie')
+ {
+ setcookie('id', $generated_id, $session_length+time(), cookie_path());
+ }
return $generated_id;
}