pdf verbesserung

app/Controller/Component/MiconwareSessionComponent.php

@@ -81,4 +81,100 @@ class MiconwareSessionComponent extends Component {
 		));
 		if($this->validate_password($password,$users['User']['password']) and !$this->isLoggedin()){
 			$this->User->id = $users['User']['id'];
-			$result = $this->User->saveField('la
+			$result = $this->User->saveField('last_login', date("Y-m-d H:i:s"));
+			if($result)
+				$result = $this->Session->write('user',$users['User']['id']);
+			return $result;
+		}
+		return false;
+	}
+
+	public function logout(){
+		if($this->isLoggedin()){
+			$this->Session->delete('user');
+			return true;
+		}
+		return false;
+	}
+
+	public function setFlash($message,$element = 'flash',$params = array(),$key = 'flash') {
+		$this->Session->setFlash($message, $element,$params,$key);
+	}
+	
+	public function getApplication($appDirectory,$user_id=false){
+		if(!$user_id)
+			$user_id = $this->Session->read('user');
+		$this->$appDirectory = ClassRegistry::init($appDirectory);
+		return $this->$appDirectory->find('first',array(
+			'conditions' => array('AppUser.user_id' => $user_id)
+		));
+	}
+	
+	
+	
+	public static function getOpeningCondition(){
+		return array('and'=>array(
+			'DreamjobJobOpening.active'=>true,
+			'DreamjobJobOpening.startdate <='=> date("Y-m-d"),
+			'DreamjobJobOpening.enddate >='=> date("Y-m-d", strtotime("+1 day"))
+		));
+	}
+	
+	public static function generateKey($length=8){
+		return md5(mcrypt_create_iv($length, MCRYPT_DEV_URANDOM));
+	}
+	
+	/**
+	 * PasswordHasg
+	 */
+	public function create_hash($password)
+	{
+		$salt = base64_encode(mcrypt_create_iv(8, MCRYPT_DEV_URANDOM));
+		return "pbkdf2_sha1$10000$" .  $salt . "$" .base64_encode($this->pbkdf2("sha1",$password,$salt,10000,20,true));
+	}
+
+	private function validate_password($password, $correct_hash)
+	{
+		$params = explode("$", $correct_hash);
+		if(count($params) < 4) return false; 
+			$pbkdf2 = base64_decode($params[3]);
+		return $this->slow_equals($pbkdf2,$this->pbkdf2($params[0],$password,$params[2],(int)$params[1],strlen($pbkdf2),true));
+	}
+
+	private function slow_equals($a, $b)
+	{
+		$diff = strlen($a) ^ strlen($b);
+		for($i = 0; $i < strlen($a) && $i < strlen($b); $i++)
+			$diff |= ord($a[$i]) ^ ord($b[$i]);
+		return $diff === 0; 
+	}
+
+	private function pbkdf2($algorithm, $password, $salt, $count, $key_length, $raw_output = false)
+	{
+		$algorithm = strtolower(ltrim($algorithm,"pbkdf2_"));
+		if(!in_array($algorithm, hash_algos(), true))
+			die('PBKDF2 ERROR: Invalid hash algorithm.');
+		if($count <= 0 || $key_length <= 0)
+			die('PBKDF2 ERROR: Invalid parameters.');
+		if (function_exists("hash_pbkdf2")) {
+			if (!$raw_output)
+				$key_length = $key_length * 2;
+			return hash_pbkdf2($algorithm, $password, $salt, $count, $key_length, $raw_output);
+		}
+		$hash_length = strlen(hash($algorithm, "", true));
+		$block_count = ceil($key_length / $hash_length);
+		$output = "";
+		for($i = 1; $i <= $block_count; $i++) {
+			$last = $salt . pack("N", $i);
+			$last = $xorsum = hash_hmac($algorithm, $last, $password, true);
+			for ($j = 1; $j < $count; $j++)
+				$xorsum ^= ($last = hash_hmac($algorithm, $last, $password, true));
+			$output .= $xorsum;
+		}    
+		if($raw_output)
+			return substr($output, 0, $key_length);
+		else
+			return bin2hex(substr($output, 0, $key_length));
+	}
+}
+?>