[sql-web.git] / lib / security.lib.php

<?php
/*
	(c) 2005 Joe Presbrey
*/

require_once('mitsql.lib.php');

class Login {
	private $id, $u, $p;
    private $info;
    function Login($u, $p=null) {
		if (empty($u)) return;
   		$this->u = $u;
		$this->p = $p;
		if (is_numeric($u)) {
			$this->id = $u;
			$opt = sprintf(" Username = '%s' OR UserId = '%s'", mysql_escape_string($u), mysql_escape_string($u));
		} else {
			$opt = sprintf(" Username = '%s'", mysql_escape_string($u));
			$opt .= (is_null($p)?'':sprintf(" AND Password='%s'", mysql_escape_string(base64_encode($p))));
		}
        $sql = sprintf("SELECT UserId, Username, Name, Email, UL, bEnabled
                        FROM User
                        WHERE %s", $opt);
        $r = fetchRows(DBSelect($sql),'UserId');
		$this->info = count($r)?array_shift($r):$r;
	}
    function exists() {
        return count($this->info);
    }
	function isValid() {
		return $this->getUL()>0;
	}
    function isEnabled() {
        return $this->exists() && $this->info['bEnabled']==1;
    }
    function canLogin() {
        return $this->isEnabled() && $this->isValid();
    }
    function canSignup() {
        return !$this->isEnabled() && $this->isValid();
    }
    function getUserId() {
        return $this->exists()?$this->info['UserId']:'';
    }
    function getUsername() {
        return $this->exists()?$this->info['Username']:'';
    }
    function getName() {
        return $this->exists()?$this->info['Name']:'';
    }
    function getEmail() {
        return $this->exists()?$this->info['Email']:'';
    }
    function getUL() {
        return $this->exists()?$this->info['UL']:'';
    }
    function expire() {
        $this->info = null;
    }
    function refresh() {
		if (!empty($this->id)) {
			$this->Login($this->id);
		} else {
			$this->Login($this->u,$this->p);
		}
    }
    function update($name=null,$email=null) {
        if (!$this->exists()) return;
        $arr = array();
		if ($name == $this->getName()) $name = null;
		if ($email == $this->getEmail()) $email = null;
        is_null($name) || $arr['Name'] = $name;
        is_null($email) || $arr['Email'] = $email;
		$upd = buildSQLSet($arr);
        $sql = sprintf("UPDATE User %s WHERE UserId = '%s'",
                        $upd, mysql_escape_string($this->getUserId()));
		if (!empty($upd) && $upd != 'SET')
			DBUpdate($sql);
		if (isset($arr['Name']))
			$this->info['Name'] = $arr['Name'];
		if (isset($arr['Email']))
			$this->info['Email'] = $arr['Email'];
	}
}

class User {
	private $userId;
	private $info;
	private $dblist;
    function User($userId) {
		$this->userId = $userId;
        $sql = sprintf("SELECT User.UserId, Username, Name, Email, UL, bEnabled, nBytesSoft, nBytesHard, nBytes, nDatabases, nDatabasesHard, IF(nBytes>nBytesHard,1,0) AS bOverQuota
                        FROM User
						INNER JOIN UserQuota ON User.UserId = UserQuota.UserId
						INNER JOIN UserStat ON User.UserId = UserStat.UserId
                        WHERE User.UserId = '%s'",
                        mysql_escape_string($userId));
        $r = fetchRows(DBSelect($sql),'UserId');
        $this->info = count($r)?array_shift($r):$r;
		$this->dblist = $this->getDBList();
    }
	function refresh() {
		unset($this->dblist);
		$this->User($this->userId);
		/*
        $sql = sprintf("SELECT UserId, Username, Name, Email, UL, bEnabled
                        FROM User
                        WHERE UserId = '%s'",
                        mysql_escape_string($this->userId));
        $r = fetchRows(DBSelect($sql),'UserId');
        $this->info = count($r)?array_shift($r):$r;
		unset($this->dblist);
		$this->getDBList();
		*/
	}
    function exists() {
        return count($this->info);
    }
    function getUserId() {
        return $this->exists()?$this->info['UserId']:'';
    }
    function getUsername() {
        return $this->exists()?$this->info['Username']:'';
    }
    function isOverQuota() {
        return $this->exists()?($this->info['bOverQuota']>0?true:false):'';
    }
    function getBytes() {
        if($this->exists()) {
			$arr['nBytes'] = $this->info['nBytes'];
			$arr['nBytesSoft'] = $this->info['nBytesSoft'];
			$arr['nBytesHard'] = $this->info['nBytesHard'];
			return $arr;
		}
    }
	function setPassword($pwd) {
		$arr['Password'] = base64_encode($pwd);
        $sql = sprintf("UPDATE User %s WHERE UserId = '%s'",
                        buildSQLSet($arr), mysql_escape_string($this->getUserId()));
        DBUpdate($sql);
		$sql = sprintf('SET PASSWORD FOR \'%s\'@\'%%\'=PASSWORD(\'%s\')',
						mysql_escape_string($this->getUsername()),
						mysql_escape_string($pwd));
		DBSet($sql);
	}
	function signup($pwd) {
		$this->pass = $pwd;
		$arr['Password'] = base64_encode($pwd);
		$arr['bEnabled'] = 1;
		$arr['dSignup'] = 'NOW()';
        $sql = sprintf("UPDATE User %s WHERE UserId = '%s'",
                        buildSQLSet($arr), mysql_escape_string($this->getUserId()));
        DBUpdate($sql);

		$this->setUsage();
		$this->setAccess();
	}
	function setUsage($yes=true) {
		$verb = $yes?'GRANT':'REVOKE';
		$prep = $yes?'TO':'FROM';
		$suffix = $yes?sprintf("IDENTIFIED BY '%s'",mysql_escape_string($this->pass)):'';
		$sql = sprintf("%s USAGE ON * . * %s '%s'@'%s' %s",
						mysql_escape_string($verb),
						mysql_escape_string($prep),
						mysql_escape_string($this->getUsername()),
						'%',
						$suffix);
		DBGrant($sql);
	}
	function setAccess($db=null,$yes=true) {
		$verb = $yes?'GRANT':'REVOKE';
		$prep = $yes?'TO':'FROM';
		if (is_null($db)) {
			$dbs = $this->getDBList();
		} else {
			$dbs[] = array('Name'=>$db);
		}
		foreach($dbs as $db) {
			$name = $db['Name'];
			$sql = sprintf("%s ALL PRIVILEGES ON `%s` . * %s '%s'@'%s'",
							mysql_escape_string($verb),
							mysql_escape_string($name),
							mysql_escape_string($prep),
							mysql_escape_string($this->getUsername()),
							'%');
			DBGrant($sql);
		}
	}
	function getDBList() {
		if (isset($this->dblist)) {
			return $this->dblist;
		} else {
			//			LEFT JOIN DBQuota ON DBQuota.DatabaseId = DBOwner.DatabaseId
			$sql = sprintf("SELECT *
						FROM DBOwner
						INNER JOIN DB ON DB.DatabaseId = DBOwner.DatabaseId
						INNER JOIN DBQuota ON DBQuota.DatabaseId = DBOwner.DatabaseId
						WHERE DBOwner.UserId = '%s' AND DB.bEnabled=1",
						mysql_escape_string($this->getUserId()));
//			$r = fetchRows(DBSelect($sql),'DatabaseId');
			$r = fetchRows(DBSelect($sql),'Name');
			ksort($r);
			return $r;
		}
	}
	function addDB($name) {
		if (in_array($name, array_keys($this->getDBList()))) return false;
		if (!addDB($name, $this->getUserId())) return false;
		$this->setAccess($name);
		return true;
	}
	function delDB($name) {
		if (!in_array($name, array_keys($this->getDBList()))) return false;
		if (!delDB($name)) return false;//, $this->getUserId())) return false;
		$this->setAccess($name,false);
		return true;
	}
}


function isLoggedIn($aLogin=null) {
    if (is_null($aLogin)) {
        global $Login;
        $aLogin = $Login;
    }
    return !empty($aLogin) && ($aLogin instanceof Login) && $aLogin->canLogin();
}

function isAdmin($aLogin=null) {
    if (is_null($aLogin)) {
        global $Login;
        $aLogin = $Login;
    }
    return !empty($aLogin) && ($aLogin instanceof Login) && $aLogin->getUL()>=100;
}

function isImpersonating() {
	return isSess('_UserId') && isSess('UserId');
}

function isOffline() {
	return (defined('OFFLINE') && OFFLINE);
}

function isOnline() {
	return !isOffline();
}

function impersonate($userId=null) {
	$wasImpersonating = isImpersonating();
	if ($wasImpersonating) {
		if (is_null($userId) || empty($userId)) {
			sess('UserId',sess('_UserId'));
			sess('_UserId','');
		} elseif ($userId>0) {
			sess('UserId',$userId);
		} else {
			return false;
		}
	} elseif (isLoggedIn()) {
		sess('_UserId',sess('UserId'));
		sess('UserId',$userId);
		return true;
	} else {
		return false;
	}
}

function isSSL() {
	return isset($_SERVER['SERVER_PORT'])?($_SERVER['SERVER_PORT'] == 443):false;
}

function getSSLCert() {
    if (DEVEL && file_exists('.forceauth')) {
        $fu = explode('|',file_get_contents('.forceauth'));
        $name = trim($fu[0]);
        $email = trim($fu[1]);
    } else {
        $name = isset($_SERVER['SSL_CLIENT_S_DN_CN'])?$_SERVER['SSL_CLIENT_S_DN_CN']:null;
        $email = isset($_SERVER['SSL_CLIENT_S_DN_Email'])?$_SERVER['SSL_CLIENT_S_DN_Email']:null;
    }
    if (!is_null($email)) {
        $user = explode('@',$email);
		$user = $user[0];
        return array('Username'=>$user, 'Name'=>$name, 'Email'=>$email);
	} else {
		return null;
	}
}

## 302 REDIRECTS

function redirect($target=null,$secure=null) {
    $base = (is_null($target)||substr($target,0,1)=='?')?$_SERVER['REDIRECT_URL']:(dirname($_SERVER['REDIRECT_URL']).'/');
    redirectFull(is_null($target)?$base:($base.$target),$secure);
}
function redirectStart() {
	redirectFull(BASE_URL,null);
}
function redirectFull($target,$secure) {
	//redirect2((((isSSL()&&is_null($secure))||$secure==true)?'https://':'http://').$_SERVER['SERVER_NAME'].$target);
	redirect2((((isSSL()&&is_null($secure))||$secure==true)?'https://scripts-cert.mit.edu':'http://scripts.mit.edu').$target);
}
function redirect2($target) {
	header('Location: '.$target);
	exit;
}
function flipSSL() {
	//return (isSSL()?'http://':'https://').$_SERVER['SERVER_NAME'].$_SERVER['REDIRECT_URL'];
	return (isSSL()?'http://scripts.mit.edu':'https://scripts-cert.mit.edu').$_SERVER['REDIRECT_URL'];
}

## USER SCRIPTS

function addUser($sslCredentials) {
    global $_NEW_USER, $_NEW_USERQUOTA, $_NEW_USERSTAT;

    $arr = array_merge($sslCredentials, $_NEW_USER);
    $sql = sprintf("INSERT INTO User %s",
                    buildSQLInsert($arr));
    $UserId = DBInsert($sql);

	$arr = $_NEW_USERQUOTA;
	$arr['UserId'] = $UserId;
    $sql = sprintf("INSERT INTO UserQuota %s",
                    buildSQLInsert($arr));
	DBInsert($sql);

	$arr = $_NEW_USERSTAT;
	$arr['UserId'] = $UserId;
    $sql = sprintf("INSERT INTO UserStat %s",
                    buildSQLInsert($arr));
	DBInsert($sql);

	return $UserId;
}

function addDB($dbname,$userid) {
	global $_NEW_DB, $_NEW_DBQUOTA, $_NEW_DBOWNER;

	DBCreate(sprintf('CREATE DATABASE `%s`', mysql_escape_string($dbname)));
	if (mysql_error()) return false;

	$newdb['Name'] = $dbname;
	$arr = array_merge($newdb, $_NEW_DB);
	$arr['bEnabled'] = 1;
	$sql = sprintf("INSERT IGNORE INTO DB %s",
                    buildSQLInsert($arr));
	$DBId = DBInsert($sql);
	if (empty($DBId)) {
		$sql = sprintf("SELECT DatabaseId FROM DB WHERE Name = '%s'",
						mysql_escape_string($dbname));
		$r = fetchRows(DBSelect($sql), 'DatabaseId');
		if (count($r)) {
			$r = array_shift($r);
			$DBId = $r['DatabaseId'];
		} else {
			return false;
		}
		$sql = sprintf("UPDATE DB %s WHERE DB.DatabaseId = '%s'",
						buildSQLSet($arr),
						$DBId);
		DBUpdate($sql);
	}

	DBDelete(sprintf("DELETE FROM DBOwner WHERE DatabaseId = '%s'", mysql_escape_string($DBId)));
	DBDelete(sprintf("DELETE FROM DBQuota WHERE DatabaseId = '%s'", mysql_escape_string($DBId)));
	
	$arr = $_NEW_DBQUOTA;
	$arr['DatabaseId'] = $DBId;
	$sql = sprintf("INSERT IGNORE INTO DBQuota %s",
					buildSQLInsert($arr));
	DBInsert($sql);

	$arr = $_NEW_DBOWNER;
	$arr['DatabaseId'] = $DBId;
	$arr['UserId'] = $userid;
	$sql = sprintf("INSERT IGNORE INTO DBOwner %s",
					buildSQLInsert($arr));
	DBInsert($sql);

	return $DBId;
}

function delDB($dbname) {
	global $_NEW_DB, $_NEW_DBQUOTA, $_NEW_DBOWNER;

	DBCreate(sprintf('DROP DATABASE `%s`', mysql_escape_string($dbname)));

	$arr['bEnabled'] = 0;
	$sql = sprintf("UPDATE DB %s WHERE DB.Name = '%s'",
					buildSQLSet($arr),
					$dbname);
	DBUpdate($sql);

	return true;
}

?>
Commit	Line	Data
997305cf	1	<?php
79ffa771 JP	2	/*
	3	(c) 2005 Joe Presbrey
	4	*/
997305cf JP	5
	6	require_once('mitsql.lib.php');
	7
	8	class Login {
e346f2b3 JP	9	private $id, $u, $p;
e346f2b3 JP	10	private $info;
997305cf	11	function Login($u, $p=null) {
377015e0	12	if (empty($u)) return;
e47be57b	13	$this->u = $u;
dc478ec8	14	$this->p = $p;
e47be57b JP	15	if (is_numeric($u)) {
e47be57b JP	16	$this->id = $u;
da0d337f	17	$opt = sprintf(" Username = '%s' OR UserId = '%s'", mysql_escape_string($u), mysql_escape_string($u));
e47be57b JP	18	} else {
	19	$opt = sprintf(" Username = '%s'", mysql_escape_string($u));
	20	$opt .= (is_null($p)?'':sprintf(" AND Password='%s'", mysql_escape_string(base64_encode($p))));
	21	}
997305cf JP	22	$sql = sprintf("SELECT UserId, Username, Name, Email, UL, bEnabled
997305cf JP	23	FROM User
377015e0	24	WHERE %s", $opt);
997305cf	25	$r = fetchRows(DBSelect($sql),'UserId');
e47be57b JP	26	$this->info = count($r)?array_shift($r):$r;
e47be57b JP	27	}
997305cf	28	function exists() {
dc478ec8	29	return count($this->info);
997305cf	30	}
dc478ec8 JP	31	function isValid() {
	32	return $this->getUL()>0;
	33	}
997305cf JP	34	function isEnabled() {
	35	return $this->exists() && $this->info['bEnabled']==1;
	36	}
dc478ec8 JP	37	function canLogin() {
	38	return $this->isEnabled() && $this->isValid();
	39	}
	40	function canSignup() {
	41	return !$this->isEnabled() && $this->isValid();
	42	}
997305cf	43	function getUserId() {
dc478ec8	44	return $this->exists()?$this->info['UserId']:'';
997305cf JP	45	}
997305cf JP	46	function getUsername() {
dc478ec8	47	return $this->exists()?$this->info['Username']:'';
997305cf JP	48	}
997305cf JP	49	function getName() {
dc478ec8	50	return $this->exists()?$this->info['Name']:'';
997305cf JP	51	}
997305cf JP	52	function getEmail() {
dc478ec8	53	return $this->exists()?$this->info['Email']:'';
997305cf JP	54	}
997305cf JP	55	function getUL() {
dc478ec8	56	return $this->exists()?$this->info['UL']:'';
997305cf JP	57	}
	58	function expire() {
	59	$this->info = null;
	60	}
	61	function refresh() {
e47be57b JP	62	if (!empty($this->id)) {
	63	$this->Login($this->id);
	64	} else {
	65	$this->Login($this->u,$this->p);
	66	}
997305cf JP	67	}
	68	function update($name=null,$email=null) {
	69	if (!$this->exists()) return;
	70	$arr = array();
dc478ec8 JP	71	if ($name == $this->getName()) $name = null;
dc478ec8 JP	72	if ($email == $this->getEmail()) $email = null;
997305cf JP	73	is_null($name) \|\| $arr['Name'] = $name;
997305cf JP	74	is_null($email) \|\| $arr['Email'] = $email;
e47be57b	75	$upd = buildSQLSet($arr);
997305cf	76	$sql = sprintf("UPDATE User %s WHERE UserId = '%s'",
3ebfe9a3	77	$upd, mysql_escape_string($this->getUserId()));
e47be57b JP	78	if (!empty($upd) && $upd != 'SET')
e47be57b JP	79	DBUpdate($sql);
dc478ec8	80	if (isset($arr['Name']))
377015e0	81	$this->info['Name'] = $arr['Name'];
dc478ec8	82	if (isset($arr['Email']))
377015e0	83	$this->info['Email'] = $arr['Email'];
dc478ec8 JP	84	}
	85	}
	86
	87	class User {
e346f2b3 JP	88	private $userId;
	89	private $info;
	90	private $dblist;
dc478ec8 JP	91	function User($userId) {
dc478ec8 JP	92	$this->userId = $userId;
6ba4f54c	93	$sql = sprintf("SELECT User.UserId, Username, Name, Email, UL, bEnabled, nBytesSoft, nBytesHard, nBytes, nDatabases, nDatabasesHard, IF(nBytes>nBytesHard,1,0) AS bOverQuota
dc478ec8	94	FROM User
e47be57b JP	95	INNER JOIN UserQuota ON User.UserId = UserQuota.UserId
e47be57b JP	96	INNER JOIN UserStat ON User.UserId = UserStat.UserId
88b7d384	97	WHERE User.UserId = '%s'",
dc478ec8 JP	98	mysql_escape_string($userId));
	99	$r = fetchRows(DBSelect($sql),'UserId');
	100	$this->info = count($r)?array_shift($r):$r;
377015e0	101	$this->dblist = $this->getDBList();
997305cf	102	}
88b7d384 JP	103	function refresh() {
	104	unset($this->dblist);
	105	$this->User($this->userId);
	106	/*
6ba4f54c	107	$sql = sprintf("SELECT UserId, Username, Name, Email, UL, bEnabled
88b7d384 JP	108	FROM User
	109	WHERE UserId = '%s'",
	110	mysql_escape_string($this->userId));
	111	$r = fetchRows(DBSelect($sql),'UserId');
	112	$this->info = count($r)?array_shift($r):$r;
	113	unset($this->dblist);
	114	$this->getDBList();
	115	*/
	116	}
dc478ec8 JP	117	function exists() {
	118	return count($this->info);
	119	}
	120	function getUserId() {
	121	return $this->exists()?$this->info['UserId']:'';
	122	}
	123	function getUsername() {
	124	return $this->exists()?$this->info['Username']:'';
88b7d384	125	}
9c70b481 JP	126	function isOverQuota() {
	127	return $this->exists()?($this->info['bOverQuota']>0?true:false):'';
	128	}
88b7d384 JP	129	function getBytes() {
	130	if($this->exists()) {
	131	$arr['nBytes'] = $this->info['nBytes'];
	132	$arr['nBytesSoft'] = $this->info['nBytesSoft'];
	133	$arr['nBytesHard'] = $this->info['nBytesHard'];
	134	return $arr;
	135	}
dc478ec8 JP	136	}
	137	function setPassword($pwd) {
	138	$arr['Password'] = base64_encode($pwd);
	139	$sql = sprintf("UPDATE User %s WHERE UserId = '%s'",
	140	buildSQLSet($arr), mysql_escape_string($this->getUserId()));
	141	DBUpdate($sql);
377015e0 JP	142	$sql = sprintf('SET PASSWORD FOR \'%s\'@\'%%\'=PASSWORD(\'%s\')',
	143	mysql_escape_string($this->getUsername()),
	144	mysql_escape_string($pwd));
	145	DBSet($sql);
dc478ec8 JP	146	}
	147	function signup($pwd) {
	148	$this->pass = $pwd;
	149	$arr['Password'] = base64_encode($pwd);
	150	$arr['bEnabled'] = 1;
	151	$arr['dSignup'] = 'NOW()';
	152	$sql = sprintf("UPDATE User %s WHERE UserId = '%s'",
	153	buildSQLSet($arr), mysql_escape_string($this->getUserId()));
	154	DBUpdate($sql);
	155
	156	$this->setUsage();
	157	$this->setAccess();
	158	}
	159	function setUsage($yes=true) {
	160	$verb = $yes?'GRANT':'REVOKE';
	161	$prep = $yes?'TO':'FROM';
3ebfe9a3	162	$suffix = $yes?sprintf("IDENTIFIED BY '%s'",mysql_escape_string($this->pass)):'';
dc478ec8 JP	163	$sql = sprintf("%s USAGE ON * . * %s '%s'@'%s' %s",
	164	mysql_escape_string($verb),
	165	mysql_escape_string($prep),
	166	mysql_escape_string($this->getUsername()),
	167	'%',
3ebfe9a3	168	$suffix);
dc478ec8 JP	169	DBGrant($sql);
	170	}
	171	function setAccess($db=null,$yes=true) {
	172	$verb = $yes?'GRANT':'REVOKE';
	173	$prep = $yes?'TO':'FROM';
	174	if (is_null($db)) {
88b7d384	175	$dbs = $this->getDBList();
dc478ec8 JP	176	} else {
	177	$dbs[] = array('Name'=>$db);
	178	}
	179	foreach($dbs as $db) {
	180	$name = $db['Name'];
	181	$sql = sprintf("%s ALL PRIVILEGES ON `%s` . * %s '%s'@'%s'",
	182	mysql_escape_string($verb),
	183	mysql_escape_string($name),
	184	mysql_escape_string($prep),
377015e0	185	mysql_escape_string($this->getUsername()),
dc478ec8 JP	186	'%');
	187	DBGrant($sql);
	188	}
	189	}
	190	function getDBList() {
88b7d384 JP	191	if (isset($this->dblist)) {
	192	return $this->dblist;
	193	} else {
	194	// LEFT JOIN DBQuota ON DBQuota.DatabaseId = DBOwner.DatabaseId
	195	$sql = sprintf("SELECT *
dc478ec8	196	FROM DBOwner
e47be57b JP	197	INNER JOIN DB ON DB.DatabaseId = DBOwner.DatabaseId
e47be57b JP	198	INNER JOIN DBQuota ON DBQuota.DatabaseId = DBOwner.DatabaseId
88b7d384	199	WHERE DBOwner.UserId = '%s' AND DB.bEnabled=1",
dc478ec8	200	mysql_escape_string($this->getUserId()));
88b7d384 JP	201	// $r = fetchRows(DBSelect($sql),'DatabaseId');
88b7d384 JP	202	$r = fetchRows(DBSelect($sql),'Name');
9c70b481	203	ksort($r);
88b7d384 JP	204	return $r;
88b7d384 JP	205	}
dc478ec8	206	}
377015e0	207	function addDB($name) {
4a77eeb5	208	if (in_array($name, array_keys($this->getDBList()))) return false;
377015e0 JP	209	if (!addDB($name, $this->getUserId())) return false;
	210	$this->setAccess($name);
	211	return true;
	212	}
e47be57b JP	213	function delDB($name) {
	214	if (!in_array($name, array_keys($this->getDBList()))) return false;
	215	if (!delDB($name)) return false;//, $this->getUserId())) return false;
	216	$this->setAccess($name,false);
	217	return true;
	218	}
997305cf JP	219	}
	220
	221
	222	function isLoggedIn($aLogin=null) {
	223	if (is_null($aLogin)) {
	224	global $Login;
	225	$aLogin = $Login;
	226	}
e346f2b3	227	return !empty($aLogin) && ($aLogin instanceof Login) && $aLogin->canLogin();
997305cf JP	228	}
997305cf JP	229
e47be57b JP	230	function isAdmin($aLogin=null) {
	231	if (is_null($aLogin)) {
	232	global $Login;
	233	$aLogin = $Login;
	234	}
e346f2b3	235	return !empty($aLogin) && ($aLogin instanceof Login) && $aLogin->getUL()>=100;
e47be57b JP	236	}
e47be57b JP	237
88b7d384 JP	238	function isImpersonating() {
	239	return isSess('_UserId') && isSess('UserId');
	240	}
	241
8ed5cf01 JP	242	function isOffline() {
	243	return (defined('OFFLINE') && OFFLINE);
	244	}
	245
	246	function isOnline() {
	247	return !isOffline();
	248	}
	249
88b7d384 JP	250	function impersonate($userId=null) {
	251	$wasImpersonating = isImpersonating();
	252	if ($wasImpersonating) {
224df904	253	if (is_null($userId) \|\| empty($userId)) {
88b7d384	254	sess('UserId',sess('_UserId'));
224df904	255	sess('_UserId','');
88b7d384 JP	256	} elseif ($userId>0) {
	257	sess('UserId',$userId);
	258	} else {
	259	return false;
	260	}
	261	} elseif (isLoggedIn()) {
	262	sess('_UserId',sess('UserId'));
	263	sess('UserId',$userId);
	264	return true;
	265	} else {
	266	return false;
	267	}
	268	}
	269
997305cf	270	function isSSL() {
aaaa7a8f	271	return isset($_SERVER['SERVER_PORT'])?($_SERVER['SERVER_PORT'] == 443):false;
997305cf JP	272	}
	273
	274	function getSSLCert() {
	275	if (DEVEL && file_exists('.forceauth')) {
	276	$fu = explode('\|',file_get_contents('.forceauth'));
dc478ec8 JP	277	$name = trim($fu[0]);
dc478ec8 JP	278	$email = trim($fu[1]);
997305cf JP	279	} else {
	280	$name = isset($_SERVER['SSL_CLIENT_S_DN_CN'])?$_SERVER['SSL_CLIENT_S_DN_CN']:null;
	281	$email = isset($_SERVER['SSL_CLIENT_S_DN_Email'])?$_SERVER['SSL_CLIENT_S_DN_Email']:null;
	282	}
	283	if (!is_null($email)) {
	284	$user = explode('@',$email);
	285	$user = $user[0];
	286	return array('Username'=>$user, 'Name'=>$name, 'Email'=>$email);
	287	} else {
	288	return null;
	289	}
	290	}
	291
	292	## 302 REDIRECTS
	293
1389493c	294	function redirect($target=null,$secure=null) {
997305cf	295	$base = (is_null($target)\|\|substr($target,0,1)=='?')?$_SERVER['REDIRECT_URL']:(dirname($_SERVER['REDIRECT_URL']).'/');
dc478ec8	296	redirectFull(is_null($target)?$base:($base.$target),$secure);
997305cf	297	}
224df904 JP	298	function redirectStart() {
	299	redirectFull(BASE_URL,null);
	300	}
dc478ec8	301	function redirectFull($target,$secure) {
51722d40 JP	302	//redirect2((((isSSL()&&is_null($secure))\|\|$secure==true)?'https://':'http://').$_SERVER['SERVER_NAME'].$target);
51722d40 JP	303	redirect2((((isSSL()&&is_null($secure))\|\|$secure==true)?'https://scripts-cert.mit.edu':'http://scripts.mit.edu').$target);
997305cf JP	304	}
	305	function redirect2($target) {
	306	header('Location: '.$target);
	307	exit;
	308	}
dc478ec8	309	function flipSSL() {
51722d40 JP	310	//return (isSSL()?'http://':'https://').$_SERVER['SERVER_NAME'].$_SERVER['REDIRECT_URL'];
51722d40 JP	311	return (isSSL()?'http://scripts.mit.edu':'https://scripts-cert.mit.edu').$_SERVER['REDIRECT_URL'];
dc478ec8	312	}
997305cf JP	313
	314	## USER SCRIPTS
	315
	316	function addUser($sslCredentials) {
dc478ec8 JP	317	global $_NEW_USER, $_NEW_USERQUOTA, $_NEW_USERSTAT;
dc478ec8 JP	318
997305cf JP	319	$arr = array_merge($sslCredentials, $_NEW_USER);
	320	$sql = sprintf("INSERT INTO User %s",
	321	buildSQLInsert($arr));
dc478ec8 JP	322	$UserId = DBInsert($sql);
	323
	324	$arr = $_NEW_USERQUOTA;
	325	$arr['UserId'] = $UserId;
	326	$sql = sprintf("INSERT INTO UserQuota %s",
	327	buildSQLInsert($arr));
	328	DBInsert($sql);
	329
	330	$arr = $_NEW_USERSTAT;
	331	$arr['UserId'] = $UserId;
1389493c	332	$sql = sprintf("INSERT INTO UserStat %s",
dc478ec8 JP	333	buildSQLInsert($arr));
	334	DBInsert($sql);
	335
	336	return $UserId;
997305cf JP	337	}
997305cf JP	338
377015e0	339	function addDB($dbname,$userid) {
e47be57b	340	global $_NEW_DB, $_NEW_DBQUOTA, $_NEW_DBOWNER;
377015e0 JP	341
377015e0 JP	342	DBCreate(sprintf('CREATE DATABASE `%s`', mysql_escape_string($dbname)));
69e08b46	343	if (mysql_error()) return false;
377015e0 JP	344
377015e0 JP	345	$newdb['Name'] = $dbname;
e47be57b	346	$arr = array_merge($newdb, $_NEW_DB);
377015e0	347	$arr['bEnabled'] = 1;
e47be57b	348	$sql = sprintf("INSERT IGNORE INTO DB %s",
377015e0	349	buildSQLInsert($arr));
e47be57b JP	350	$DBId = DBInsert($sql);
	351	if (empty($DBId)) {
	352	$sql = sprintf("SELECT DatabaseId FROM DB WHERE Name = '%s'",
	353	mysql_escape_string($dbname));
	354	$r = fetchRows(DBSelect($sql), 'DatabaseId');
	355	if (count($r)) {
	356	$r = array_shift($r);
	357	$DBId = $r['DatabaseId'];
	358	} else {
	359	return false;
	360	}
	361	$sql = sprintf("UPDATE DB %s WHERE DB.DatabaseId = '%s'",
	362	buildSQLSet($arr),
	363	$DBId);
	364	DBUpdate($sql);
e47be57b	365	}
69e08b46 JP	366
	367	DBDelete(sprintf("DELETE FROM DBOwner WHERE DatabaseId = '%s'", mysql_escape_string($DBId)));
	368	DBDelete(sprintf("DELETE FROM DBQuota WHERE DatabaseId = '%s'", mysql_escape_string($DBId)));
	369
	370	$arr = $_NEW_DBQUOTA;
	371	$arr['DatabaseId'] = $DBId;
	372	$sql = sprintf("INSERT IGNORE INTO DBQuota %s",
	373	buildSQLInsert($arr));
	374	DBInsert($sql);
	375
	376	$arr = $_NEW_DBOWNER;
	377	$arr['DatabaseId'] = $DBId;
	378	$arr['UserId'] = $userid;
	379	$sql = sprintf("INSERT IGNORE INTO DBOwner %s",
	380	buildSQLInsert($arr));
	381	DBInsert($sql);
	382
	383	return $DBId;
e47be57b JP	384	}
	385
	386	function delDB($dbname) {
	387	global $_NEW_DB, $_NEW_DBQUOTA, $_NEW_DBOWNER;
	388
	389	DBCreate(sprintf('DROP DATABASE `%s`', mysql_escape_string($dbname)));
	390
	391	$arr['bEnabled'] = 0;
	392	$sql = sprintf("UPDATE DB %s WHERE DB.Name = '%s'",
	393	buildSQLSet($arr),
	394	$dbname);
	395	DBUpdate($sql);
377015e0	396
e47be57b	397	return true;
377015e0 JP	398	}
377015e0 JP	399
88b7d384	400	?>