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<?php
/**
* Plaintext authentication backend
*
* If you want to authenticate against something
* else then the builtin flatfile auth system
* you have to reimplement the "required auth
* functions"
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
*/
/**
* Check user+password [required auth function]
*
* Checks if the given user exists and the given
* plaintext password is correct
*
* @author Andreas Gohr <andi@splitbrain.org>
* @return bool
*/
function auth_checkPass($user,$pass){
$users = auth_plain_loadUserData();
$pass = md5($pass); //encode pass
if($users[$user]['pass'] == $pass){
return true;
}else{
return false;
}
}
/**
* Return user info [required auth function]
*
* Returns info about the given user needs to contain
* at least these fields:
*
* name string full name of the user
* mail string email addres of the user
* grps array list of groups the user is in
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function auth_getUserData($user){
$users = auth_plain_loadUserData();
return $users[$user];
}
/**
* Create a new User [required auth function]
*
* Returns false if the user already exists, null when an error
* occured and the cleartext password of the new user if
* everything went well.
*
* The new user HAS TO be added to the default group by this
* function!
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function auth_createUser($user,$name,$mail){
global $conf;
$users = auth_plain_loadUserData();
if(isset($users[$user])) return false;
$pass = auth_pwgen();
$userline = join(':',array($user,
md5($pass),
$name,
$mail,
$conf['defaultgroup']));
$userline .= "\n";
$fh = fopen('conf/users.auth','a');
if($fh){
fwrite($fh,$userline);
fclose($fh);
return $pass;
}
msg('The users.auth file is not writable. Please inform the Wiki-Admin',-1);
return null;
}
/**
* Load all user data
*
* Used by the plaintext auth functions
* loads the user file into a datastructure
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function auth_plain_loadUserData(){
$data = array();
$lines = file('conf/users.auth');
foreach($lines as $line){
$line = preg_replace('/#.*$/','',$line); //ignore comments
$line = trim($line);
if(empty($line)) continue;
$row = split(":",$line,5);
$groups = split(",",$row[4]);
$data[$row[0]]['pass'] = $row[1];
$data[$row[0]]['name'] = urldecode($row[2]);
$data[$row[0]]['mail'] = $row[3];
$data[$row[0]]['grps'] = $groups;
}
return $data;
}
?>
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