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LDAPAccountManager/lam/templates/3rdParty/pla/lib/ds.php

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2014-07-15 18:21:39 +00:00
<?php
/**
* Classes and functions for communication of Data Stores
*
* @author The phpLDAPadmin development team
* @package phpLDAPadmin
*/
/**
* This abstract class provides the basic variables and methods.
*
* @package phpLDAPadmin
* @subpackage DataStore
*/
abstract class DS {
# ID of this db.
protected $index;
# Configuration paramters.
protected $default;
protected $custom;
protected $type;
abstract function __construct($index);
/**
* This will make the connection to the datasource
*/
abstract protected function connect($method,$debug=false);
/**
* Login to the datastore
* method: default = anon, connect to ds using bind_id not auth_id.
* method: 'user', connect with auth_id
* method: '<freetext>', any custom extra connection to ds.
*/
abstract public function login($user=null,$pass=null,$method=null);
/**
* Query the datasource
*/
abstract public function query($query,$method,$index=null,$debug=false);
/**
* Return error details from previous operation
*/
abstract protected function getErrorMessage();
abstract protected function getErrorNum();
/**
* Functions that set and verify object configuration details
*/
public function setDefaults($defaults) {
foreach ($defaults as $key => $details)
foreach ($details as $setting => $value)
$this->default->{$key}[$setting] = $value;
}
public function isDefaultKey($key) {
return isset($this->default->$key);
}
public function isDefaultSetting($key,$setting) {
return array_key_exists($setting,$this->default->{$key});
}
/**
* Return a configuration value
*/
public function getValue($key,$setting,$fatal=true) {
if (defined('DEBUG_ENABLED') && DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,1,__FILE__,__LINE__,__METHOD__,$fargs);
if (isset($this->custom->{$key}[$setting]))
return $this->custom->{$key}[$setting];
elseif (isset($this->default->{$key}[$setting]) && array_key_exists('default',$this->default->{$key}[$setting]))
return $this->default->{$key}[$setting]['default'];
elseif ($fatal)
debug_dump_backtrace("Error trying to get a non-existant value ($key,$setting)",1);
else
return null;
}
/**
* Set a configuration value
*/
public function setValue($key,$setting,$value) {
if (isset($this->custom->{$key}[$setting]))
system_message(array(
'title'=>('Configuration setting already defined.'),
'body'=>sprintf('A call has been made to reset a configuration value (%s,%s,%s)',
$key,$setting,$value),
'type'=>'info'));
$this->custom->{$key}[$setting] = $value;
}
/**
* Return the untested config items
*/
public function untested() {
$result = array();
foreach ($this->default as $option => $details)
foreach ($details as $param => $values)
if (isset($values['untested']) && $values['untested'])
array_push($result,sprintf('%s.%s',$option,$param));
return $result;
}
/**
* Get the name of this datastore
*/
public function getName() {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
return $this->getValue('server','name');
}
/**
* Functions that enable login and logout of the application
*/
/**
* Return the authentication type for this object
*/
public function getAuthType() {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
switch ($this->getValue('login','auth_type')) {
case 'cookie':
case 'config':
case 'http':
case 'proxy':
case 'session':
case 'sasl':
return $this->getValue('login','auth_type');
default:
die(sprintf('Error: <b>%s</b> hasnt been configured for auth_type <b>%s</b>',__METHOD__,
$this->getValue('login','auth_type')));
}
}
/**
* Get the login name of the user logged into this datastore's connection method
* If this returns null, we are not logged in.
* If this returns '', we are logged in with anonymous
*/
public function getLogin($method=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
$method = $this->getMethod($method);
# For anonymous binds
if ($method == 'anon')
if (isset($_SESSION['USER'][$this->index][$method]['name']))
return '';
else
return null;
switch ($this->getAuthType()) {
case 'cookie':
if (! isset($_COOKIE[$method.'-USER']))
# If our bind_id is set, we'll pass that back for logins.
return (! is_null($this->getValue('login','bind_id')) && $method == 'login') ? $this->getValue('login','bind_id') : null;
else
return blowfish_decrypt($_COOKIE[$method.'-USER']);
case 'config':
if (! isset($_SESSION['USER'][$this->index][$method]['name']))
return $this->getValue('login','bind_id');
else
return blowfish_decrypt($_SESSION['USER'][$this->index][$method]['name']);
case 'proxy':
if (! isset($_SESSION['USER'][$this->index][$method]['proxy']))
return $this->getValue('login','bind_id');
else
return blowfish_decrypt($_SESSION['USER'][$this->index][$method]['proxy']);
case 'http':
case 'session':
case 'sasl':
if (! isset($_SESSION['USER'][$this->index][$method]['name']))
# If our bind_id is set, we'll pass that back for logins.
return (! is_null($this->getValue('login','bind_id')) && $method == 'login') ? $this->getValue('login','bind_id') : null;
else
return blowfish_decrypt($_SESSION['USER'][$this->index][$method]['name']);
default:
die(sprintf('Error: %s hasnt been configured for auth_type %s',__METHOD__,$this->getAuthType()));
}
}
/**
* Set the login details of the user logged into this datastore's connection method
*/
protected function setLogin($user,$pass,$method=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
$method = $this->getMethod($method);
switch ($this->getAuthType()) {
case 'cookie':
set_cookie($method.'-USER',blowfish_encrypt($user),NULL,'/');
set_cookie($method.'-PASS',blowfish_encrypt($pass),NULL,'/');
return true;
case 'config':
return true;
case 'proxy':
if (isset($_SESSION['USER'][$this->index][$method]['proxy']))
unset($_SESSION['USER'][$this->index][$method]['proxy']);
case 'http':
case 'session':
case 'sasl':
$_SESSION['USER'][$this->index][$method]['name'] = blowfish_encrypt($user);
$_SESSION['USER'][$this->index][$method]['pass'] = blowfish_encrypt($pass);
return true;
default:
die(sprintf('Error: %s hasnt been configured for auth_type %s',__METHOD__,$this->getAuthType()));
}
}
/**
* Get the login password of the user logged into this datastore's connection method
*/
protected function getPassword($method=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
$method = $this->getMethod($method);
# For anonymous binds
if ($method == 'anon')
if (isset($_SESSION['USER'][$this->index][$method]['name']))
return '';
else
return null;
switch ($this->getAuthType()) {
case 'cookie':
if (! isset($_COOKIE[$method.'-PASS']))
# If our bind_id is set, we'll pass that back for logins.
return (! is_null($this->getValue('login','bind_pass')) && $method == 'login') ? $this->getValue('login','bind_pass') : null;
else
return blowfish_decrypt($_COOKIE[$method.'-PASS']);
case 'config':
case 'proxy':
if (! isset($_SESSION['USER'][$this->index][$method]['pass']))
return $this->getValue('login','bind_pass');
else
return blowfish_decrypt($_SESSION['USER'][$this->index][$method]['pass']);
case 'http':
case 'session':
case 'sasl':
if (! isset($_SESSION['USER'][$this->index][$method]['pass']))
# If our bind_pass is set, we'll pass that back for logins.
return (! is_null($this->getValue('login','bind_pass')) && $method == 'login') ? $this->getValue('login','bind_pass') : null;
else
return blowfish_decrypt($_SESSION['USER'][$this->index][$method]['pass']);
default:
die(sprintf('Error: %s hasnt been configured for auth_type %s',__METHOD__,$this->getAuthType()));
}
}
/**
* Return if this datastore's connection method has been logged into
*/
public function isLoggedIn($method=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
static $CACHE = array();
$method = $this->getMethod($method);
if (isset($CACHE[$this->index][$method]) && ! is_null($CACHE[$this->index][$method]))
return $CACHE[$this->index][$method];
$CACHE[$this->index][$method] = null;
# For some authentication types, we need to do the login here
switch ($this->getAuthType()) {
case 'config':
if (! $CACHE[$this->index][$method] = $this->login($this->getLogin($method),$this->getPassword($method),$method))
system_message(array(
'title'=>('Unable to login.'),
'body'=>('Your configuration file has authentication set to CONFIG based authentication, however, the userid/password failed to login'),
'type'=>'error'));
break;
case 'http':
# If our auth vars are not set, throw up a login box.
if (! isset($_SERVER['PHP_AUTH_USER'])) {
# If this server is not in focus, skip the basic auth prompt.
if (get_request('server_id','REQUEST') != $this->getIndex()) {
$CACHE[$this->index][$method] = false;
break;
}
header(sprintf('WWW-Authenticate: Basic realm="%s %s"',app_name(),_('login')));
if ($_SERVER['SERVER_PROTOCOL'] == 'HTTP/1.0')
header('HTTP/1.0 401 Unauthorized'); // http 1.0 method
else
header('Status: 401 Unauthorized'); // http 1.1 method
# If we still dont have login details...
if (! isset($_SERVER['PHP_AUTH_USER'])) {
system_message(array(
'title'=>('Unable to login.'),
'body'=>('Your configuration file has authentication set to HTTP based authentication, however, there was none presented'),
'type'=>'error'));
$CACHE[$this->index][$method] = false;
}
# Check our auth vars are valid.
} else {
if (! $this->login($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW'],$method)) {
system_message(array(
'title'=>('Unable to login.'),
'body'=>('Your HTTP based authentication is not accepted by the LDAP server'),
'type'=>'error'));
$CACHE[$this->index][$method] = false;
} else
$CACHE[$this->index][$method] = true;
}
break;
case 'proxy':
$CACHE[$this->index][$method] = $this->login($this->getValue('login','bind_id'),$this->getValue('login','bind_pass'),$method);
break;
case 'sasl':
# Propogate any given Kerberos credential cache location
if (isset($_ENV['REDIRECT_KRB5CCNAME']))
putenv(sprintf('KRB5CCNAME=%s',$_ENV['REDIRECT_KRB5CCNAME']));
elseif (isset($_SERVER['KRB5CCNAME']))
putenv(sprintf('KRB5CCNAME=%s',$_SERVER['KRB5CCNAME']));
# Map the SASL auth ID to a DN
$regex = $this->getValue('login', 'sasl_dn_regex');
$replacement = $this->getValue('login', 'sasl_dn_replacement');
if ($regex && $replacement) {
$userDN = preg_replace($regex, $replacement, $_SERVER['REMOTE_USER']);
$CACHE[$this->index][$method] = $this->login($userDN, '', $method);
}
# Otherwise, use the user name as is
else {
$CACHE[$this->index][$method] = $this->login($_SERVER['REMOTE_USER'], '', $method);
}
break;
default:
$CACHE[$this->index][$method] = is_null($this->getLogin($method)) ? false : true;
}
return $CACHE[$this->index][$method];
}
/**
* Logout of this datastore's connection method
*/
public function logout($method=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
$method = $this->getMethod($method);
unset ($_SESSION['cache'][$this->index]);
switch ($this->getAuthType()) {
case 'cookie':
set_cookie($method.'-USER','',time()-3600,'/');
set_cookie($method.'-PASS','',time()-3600,'/');
case 'config':
return true;
case 'http':
case 'proxy':
case 'session':
case 'sasl':
if (isset($_SESSION['USER'][$this->index][$method]))
unset($_SESSION['USER'][$this->index][$method]);
return true;
default:
die(sprintf('Error: %s hasnt been configured for auth_type %s',__METHOD__,$this->getAuthType()));
}
}
/**
* Functions that return the condition of the datasource
*/
public function isVisible() {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
return $this->getValue('server','visible');
}
public function isReadOnly() {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
if (! trim($this->getLogin(null)) && $_SESSION[APPCONFIG]->getValue('appearance','anonymous_bind_implies_read_only'))
return true;
else
return $this->getValue('server','read_only');
}
public function getIndex() {
if (defined('DEBUG_ENABLED') && DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,1,__FILE__,__LINE__,__METHOD__,$fargs,$this->index);
return $this->index;
}
/**
* Work out which connection method to use.
* If a method is passed, then it will be passed back. If no method is passed, then we'll
* check to see if the user is logged in. If they are, then 'user' is used, otherwise
* 'anon' is used.
*
* @param int Server ID
* @return string Connection Method
*/
protected function getMethod($method=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
static $CACHE = array();
# Immediately return if method is set.
if (! is_null($method))
return $method;
# If we have been here already, then return our result
if (isset($CACHE[$this->index]) && ! is_null($CACHE))
return $CACHE[$this->index];
$CACHE[$this->index] = 'anon';
if ($this->isLoggedIn('user'))
$CACHE[$this->index] = 'user';
return $CACHE[$this->index];
}
/**
* This method should be overridden in application specific ds files
*/
public function isSessionValid() {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,1,__FILE__,__LINE__,__METHOD__,$fargs,true);
return true;
}
/**
* Return the time left in seconds until this connection times out. If there is not timeout,
* this function will return null.
*/
public function inactivityTime() {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
if ($this->isLoggedIn() && ! in_array($this->getAuthType(),array('config','http')))
return time()+($this->getValue('login','timeout')*60);
else
return null;
}
}
/**
* The list of database sources
*
* @package phpLDAPadmin
* @subpackage DataStore
*/
class Datastore {
# Out DS index id
private $index;
# List of all the objects
private $objects = array();
# Default settings
private $default;
public function __construct() {
$this->default = new StdClass;
$this->default->server['id'] = array(
'desc'=>'Server ID',
'default'=>null);
$this->default->server['name'] = array(
'desc'=>'Server name',
'default'=>null);
# Connectivity Info
$this->default->server['host'] = array(
'desc'=>'Host Name',
'default'=>'127.0.0.1');
$this->default->server['port'] = array(
'desc'=>'Port Number',
'default'=>null);
# Read or write only access
$this->default->server['read_only'] = array(
'desc'=>'Server is in READ ONLY mode',
'default'=>false);
$this->default->server['visible'] = array(
'desc'=>'Whether this server is visible',
'default'=>true);
# Authentication Information
$this->default->login['auth_type'] = array(
'desc'=>'Authentication Type',
'default'=>'session');
/*
/* ID to login to this application, this assumes that there is
* application authentication on top of authentication required to
* access the data source **
$this->default->login['auth_id'] = array(
'desc'=>'User Login ID to login to this DS',
'untested'=>true,
'default'=>null);
$this->default->login['auth_pass'] = array(
'desc'=>'User Login Password to login to this DS',
'untested'=>true,
'default'=>null);
*/
$this->default->login['auth_text'] = array(
'desc'=>'Text to show at the login prompt',
'default'=>null);
$this->default->login['bind_id'] = array(
'desc'=>'User Login ID to bind to this DS',
'default'=>null);
$this->default->login['bind_pass'] = array(
'desc'=>'User Login Password to bind to this DS',
'default'=>null);
$this->default->login['timeout'] = array(
'desc'=>'Session timout in seconds',
'default'=>session_cache_expire()-1);
$this->default->login['sasl_dn_regex'] = array(
'desc'=>'SASL authorization id to user dn PCRE regular expression',
'untested'=>true,
'default'=>null);
$this->default->login['sasl_dn_replacement'] = array(
'desc'=>'SASL authorization id to user dn PCRE regular expression replacement string',
'untested'=>true,
'default'=>null);
# Prefix for custom pages
$this->default->custom['pages_prefix'] = array(
'desc'=>'Prefix name for custom pages',
'default'=>'custom_');
}
/**
* Create a new database object
*/
public function newServer($type) {
if (class_exists($type)) {
$this->index = count($this->objects)+1;
$this->objects[$this->index] = new $type($this->index);
$this->objects[$this->index]->setDefaults($this->default);
return $this->index;
} else {
printf('ERROR: Class [%s] doesnt exist',$type);
die();
}
}
/**
* Set values for a database object.
*/
public function setValue($key,$setting,$value) {
if (! $this->objects[$this->index]->isDefaultKey($key))
error("ERROR: Setting a key [$key] that isnt predefined.",'error',true);
if (! $this->objects[$this->index]->isDefaultSetting($key,$setting))
error("ERROR: Setting a index [$key,$setting] that isnt predefined.",'error',true);
# Test if its should be an array or not.
if (is_array($this->objects[$this->index]->getValue($key,$setting)) && ! is_array($value))
error("Error in configuration file, {$key}['$setting'] SHOULD be an array of values.",'error',true);
if (! is_array($this->objects[$this->index]->getValue($key,$setting)) && is_array($value))
error("Error in configuration file, {$key}['$setting'] should NOT be an array of values.",'error',true);
# Store the value in the object.
$this->objects[$this->index]->setValue($key,$setting,$value);
}
/**
* Get a list of all the configured servers.
*
* @param boolean Only show visible servers.
* @return array list of all configured servers.
*/
public function getServerList($isVisible=true) {
if (defined('DEBUG_ENABLED') && DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
static $CACHE;
if (isset($CACHE[$isVisible]))
return $CACHE[$isVisible];
$CACHE[$isVisible] = array();
# Debugging incase objects is not set.
if (! $this->objects) {
print "<PRE>";
debug_print_backtrace();
die();
}
foreach ($this->objects as $id => $server)
if (! $isVisible || ($isVisible && $server->getValue('server','visible')))
$CACHE[$isVisible][$id] = $server;
masort($CACHE[$isVisible],'name');
return $CACHE[$isVisible];
}
/**
* Return an object Instance of a configured database.
*
* @param int Index
* @return object Datastore instance object.
*/
public function Instance($index=null) {
if (defined('DEBUG_ENABLED') && DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
# If no index defined, then pick the lowest one.
if (is_null($index) || ! trim($index) || ! is_numeric($index))
$index = min($this->GetServerList())->getIndex();
if (! isset($this->objects[$index]))
debug_dump_backtrace(sprintf('Error: Datastore instance [%s] doesnt exist?',htmlspecialchars($index)),1);
if (defined('DEBUG_ENABLED') && DEBUG_ENABLED)
debug_log('Returning instance of database (%s)',3,0,__FILE__,__LINE__,__METHOD__,$index);
return $this->objects[$index];
}
/**
* Return an object Instance of a configured database.
*
* @param string Name of the instance to retrieve
* @return object Datastore instance object.
*/
public function InstanceName($name=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
foreach ($this->getServerList(false) as $index)
if ($this->objects[$index]->getName() == $name)
return $this->objects[$index];
# If we get here, then no object with the name exists.
return null;
}
/**
* Return an object Instance of a configured database.
*
* @param string ID of the instance to retrieve
* @return object Datastore instance object.
*/
public function InstanceId($id=null) {
if (DEBUG_ENABLED && (($fargs=func_get_args())||$fargs='NOARGS'))
debug_log('Entered (%%)',17,0,__FILE__,__LINE__,__METHOD__,$fargs);
foreach ($this->getServerList(false) as $index)
if ($this->objects[$index->getIndex()]->getValue('server','id') == $id)
return $this->objects[$index->getIndex()];
# If we get here, then no object with the name exists.
return null;
}
}
?>