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Added auth functions to implement creation of home calendar and

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addition of default relationships, and write replacement for
auth_other_awl which uses these.
This commit is contained in:
Andrew McMillan 2007-10-28 10:27:16 +13:00
parent e49987b069
commit b27b0d4c7b
1 changed files with 142 additions and 0 deletions
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inc/auth-functions.php Normal file
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<?php
/**
* The authentication handling plugins can be used by the Session class to
* provide authentication.
*
* Each authenticate hook needs to:
* - Accept a username / password
* - Confirm the username / password are correct
* - Create (or update) a 'usr' record in our database
* - Return the 'usr' record as an object
* - Return === false when authentication fails
*
* It can expect that:
* - Configuration data will be in $c->authenticate_hook['config'], which might be an array, or whatever is needed.
*
* In order to be called:
* - This file should be included
* - $c->authenticate_hook['call'] should be set to the name of the plugin
* - $c->authenticate_hook['config'] should be set up with any configuration data for the plugin
*
* @package davical
* @subpackage authentication
* @author Andrew McMillan <andrew@catalyst.net.nz>
* @copyright Catalyst IT Ltd
* @license http://gnu.org/copyleft/gpl.html GNU GPL v2
*/
require_once("AWLUtilities.php");
/**
* Create a default home calendar for the user.
* @param string $username The username of the user we are creating relationships for.
*/
function CreateHomeCalendar( $username ) {
global $session, $c;
if ( ! isset($c->home_calendar_name) || strlen($c->home_calendar_name) == 0 ) return true;
$usr = getUserByName( $username );
$parent_path = "/".$username."/";
$calendar_path = $parent_path . $c->home_calendar_name."/";
$dav_etag = md5($usr->user_no . $calendar_path);
$sql = "INSERT INTO collection (user_no, parent_container, dav_name, dav_etag, dav_displayname, is_calendar, ";
$sql .= "created, modified) VALUES( ?, ?, ?, ?, ?, true, current_timestamp, current_timestamp );";
$qry = new PgQuery( $sql, $this->user_no, $parent_path, $calendar_path, $dav_etag, $usr->fullname) );
if ( $qry->Exec() ) {
$c->messages[] = i18n("Home calendar added.");
dbg_error_log("User",":Write: Created user's home calendar at '%s'", $calendar_path );
}
else {
$c->messages[] = i18n("There was an error writing to the database.");
return false;
}
return true;
}
/**
* Create default relationships
* @param string $username The username of the user we are creating relationships for.
*/
function CreateDefaultRelationships( $username ) {
global $session, $c;
if ( ! isset($c->default_relationships) || !is_array($c->default_relationships) || count($c->default_relationships) == 0 ) return false;
$usr = getUserByName( $username );
$sql = "";
foreach( $c->default_relationships AS $to_user => $permission ) {
$sql .= "INSERT INTO relationship (from_user, to_user, rt_id) ";
$sql .= "VALUES( $usr->user_no, $to_user, (select rt_id from relationship_type where confers = '$permission' order by rt_id limit 1) );";
}
$qry = new PgQuery( $sql );
if ( $qry->Exec() ) {
$c->messages[] = i18n("Default relationships added.");
dbg_error_log("User",":Write: Added default relationships" );
}
else {
$c->messages[] = i18n("There was an error writing to the database.");
return false;
}
return true;
}
/**
* Authenticate against a different PostgreSQL database which contains a usr table in
* the AWL format.
*
* @package davical
*/
function AuthExternalAWL( $username, $password ) {
global $c;
$authconn = pg_Connect($c->authenticate_hook['config']['connection']);
if ( ! $authconn ) {
echo <<<EOERRMSG
<html><head><title>Database Connection Failure</title></head><body>
<h1>Database Error</h1>
<h3>Could not connect to PostgreSQL database</h3>
</body>
</html>
EOERRMSG;
exit(1);
}
if ( isset($c->authenticate_hook['config']['columns']) )
$cols = $c->authenticate_hook['config']['columns'];
else
$cols = "*";
$qry = new PgQuery("SELECT $cols FROM usr WHERE lower(username) = ? ", strtolower($username) );
$qry->SetConnection($authconn);
if ( $qry->Exec('Login',__LINE,__FILE__) && $qry->rows == 1 ) {
$usr = $qry->Fetch();
if ( session_validate_password( $password, $usr->password ) ) {
$qry = new PgQuery("SELECT * FROM usr WHERE user_no = $usr->user_no;" );
if ( $qry->Exec('Login',__LINE,__FILE__) && $qry->rows == 1 )
$type = "UPDATE";
else
$type = "INSERT";
include_once("DataUpdate.php");
$qry = new PgQuery( sql_from_object( $usr, $type, 'usr', "WHERE user_no=$usr->user_no" ) );
$qry->Exec('Login',__LINE,__FILE__);
/**
* We disallow login by inactive users _after_ we have updated the local copy
*/
if ( isset($usr->active) && $usr->active == 'f' ) return false;
if ( $type == 'INSERT' ) {
CreateHomeCalendar($usr->username);
CreateDefaultRelationships($usr->username);
}
return $usr;
}
}
return false;
}