library/ESign/Signature.php

   1 <?php
   2
   3 namespace ESign;
   4
   5 /**
   6  * Signature class
   7  *
   8  * Copyright (C) 2013 OEMR 501c3 www.oemr.org
   9  *
  10  * LICENSE: This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 3
  13  * of the License, or (at your option) any later version.
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program. If not, see <http://opensource.org/licenses/gpl-license.php>;.
  20  *
  21  * @package OpenEMR
  22  * @author  Ken Chapple <ken@mi-squared.com>
  23  * @author  Medical Information Integration, LLC
  24  * @link    http://www.open-emr.org
  25  **/
  26
  27 require_once $GLOBALS['srcdir'].'/ESign/SignatureIF.php';
  28 require_once $GLOBALS['srcdir'].'/ESign/Utils/Verification.php';
  29
  30 class Signature implements SignatureIF
  31 {
  32     private $id; // id of the signature
  33     private $tid;
  34     private $table;
  35     private $isLock = null; // flag signifying whether the signable object is locked
  36     private $uid; // user id of the signer
  37     private $firstName; // first name of signer
  38     private $lastName; // last name of signer
  39     private $datetime; // date and time of the signature
  40     private $hash; // hash of the thing being signed on (SignableIF)
  41     private $signatureHash = null; // hash of data in this signature
  42     private $amendment = null; // note about the signature, if any
  43
  44     private $_verification = null;
  45
  46     public function __construct($id, $tid, $table, $isLock, $uid, $firstName, $lastName, $datetime, $hash, $amendment = null, $signatureHash = null)
  47     {
  48         $this->id = $id;
  49         $this->tid = $tid;
  50         $this->table = $table;
  51         $this->isLock = $isLock;
  52         $this->uid = $uid;
  53         $this->firstName = $firstName;
  54         $this->lastName = $lastName;
  55         $this->datetime = $datetime;
  56         $this->hash = $hash;
  57         $this->amendment = $amendment;
  58         $this->signatureHash = $signatureHash;
  59
  60         $this->_verification = new Utils_Verification();
  61     }
  62
  63     public function getClass()
  64     {
  65         $class = "";
  66         if ($this->isLock() === true) {
  67             $class .= " locked";
  68         }
  69
  70         return $class;
  71     }
  72
  73     public function getId()
  74     {
  75         return $this->id;
  76     }
  77
  78     public function getUid()
  79     {
  80         return $this->uid;
  81     }
  82
  83     public function setUid($uid)
  84     {
  85         $this->uid = $uid;
  86     }
  87
  88     public function getFirstName()
  89     {
  90         return $this->firstName;
  91     }
  92
  93     public function getLastName()
  94     {
  95         return $this->lastName;
  96     }
  97
  98     public function getDatetime()
  99     {
 100         return $this->datetime;
 101     }
 102
 103     public function isLock()
 104     {
 105         if ($this->isLock > 0) {
 106             return true;
 107         }
 108
 109         return false;
 110     }
 111
 112     public function getAmendment()
 113     {
 114         return $this->amendment;
 115     }
 116
 117     public function getData()
 118     {
 119         $data = array( $this->tid, $this->table, $this->uid, $this->isLock, $this->hash, $this->amendment );
 120         return $data;
 121     }
 122
 123     public function verify()
 124     {
 125         return $this->_verification->verify($this->getData(), $this->signatureHash);
 126     }
 127 }