374 lines
8.0 KiB
PHP
374 lines
8.0 KiB
PHP
<?php
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/**
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* @copyright 2006-2009 City of Bloomington, Indiana
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* @license http://www.gnu.org/licenses/agpl.txt GNU/AGPL, see LICENSE.txt
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* @author Cliff Ingham <inghamn@bloomington.in.gov>
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*/
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class User extends SystemUser
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{
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private $id;
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private $person_id;
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private $username;
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private $password;
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private $authenticationMethod;
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private $person;
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private $roles = array();
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private $newPassword; // the User's new password, unencrypted
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/**
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* @param int|string $id
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*/
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public function __construct($id = null)
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{
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if ($id) {
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if (is_array($id)) {
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$result = $id;
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}
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else {
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if (ctype_digit($id)) {
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$sql = 'select * from users where id=?';
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}
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else {
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$sql = 'select * from users where username=?';
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}
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$zend_db = Database::getConnection();
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$result = $zend_db->fetchRow($sql,array($id));
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}
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if ($result) {
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foreach ($result as $field=>$value) {
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if ($value) {
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$this->$field = $value;
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}
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}
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}
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else {
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throw new Exception('users/unknownUser');
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}
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}
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else {
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// This is where the code goes to generate a new, empty instance.
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// Set any default values for properties that need it here
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}
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}
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/**
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* Throws an exception if anything's wrong
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* @throws Exception $e
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*/
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public function validate()
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{
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if (!$this->person_id) {
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throw new Exception('users/missingPerson_id');
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}
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if (!$this->username) {
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throw new Exception('users/missingUsername');
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}
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}
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/**
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* Saves this record back to the database
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*
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* This generates generic SQL that should work right away.
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* You can replace this $fields code with your own custom SQL
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* for each property of this class,
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*/
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public function save()
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{
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$this->validate();
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$data = array();
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$data['person_id'] = $this->person_id;
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$data['username'] = $this->username;
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// Passwords should not be updated by default. Use the savePassword() function
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$data['authenticationMethod'] = $this->authenticationMethod
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? $this->authenticationMethod
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: null;
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// Do the database calls
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if ($this->id) {
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$this->update($data);
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}
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else {
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$this->insert($data);
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}
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// Save the password only if it's changed
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if ($this->passwordHasChanged()) {
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$this->savePassword();
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}
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$this->updateRoles();
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}
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private function update($data)
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{
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$zend_db = Database::getConnection();
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$zend_db->update('users',$data,"id={$this->id}");
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}
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private function insert($data)
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{
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$zend_db = Database::getConnection();
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$zend_db->insert('users',$data);
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$this->id = $zend_db->lastInsertId('users','id');
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}
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/**
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* Removes this object from the database
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*/
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public function delete()
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{
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$zend_db = Database::getConnection();
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$zend_db->delete('user_roles',"user_id={$this->id}");
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$zend_db->delete('users',"id={$this->id}");
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}
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//----------------------------------------------------------------
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// Generic Getters
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//----------------------------------------------------------------
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/**
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* @return int
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*/
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public function getId()
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{
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return $this->id;
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}
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/**
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* @return int
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*/
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public function getPerson_id()
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{
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return $this->person_id;
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}
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/**
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* @return string
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*/
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public function getUsername()
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{
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return $this->username;
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}
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/**
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* @return string
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*/
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public function getAuthenticationMethod()
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{
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return $this->authenticationMethod;
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}
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/**
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* @return Person
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*/
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public function getPerson()
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{
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if ($this->person_id) {
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if (!$this->person) {
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$this->person = new Person($this->person_id);
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}
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return $this->person;
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}
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return null;
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}
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//----------------------------------------------------------------
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// Generic Setters
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//----------------------------------------------------------------
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/**
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* @param int $int
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*/
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public function setPerson_id($int)
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{
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$this->person = new Person($int);
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$this->person_id = $int;
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}
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/**
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* @param string $string
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*/
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public function setUsername($string)
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{
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$this->username = trim($string);
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}
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/**
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* Takes a user-given password and converts it to an MD5 Hash
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* @param String $string
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*/
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public function setPassword($string)
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{
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// Save the user given password, so we can update it externally, if needed
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$this->newPassword = trim($string);
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$this->password = md5(trim($string));
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}
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/**
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* Takes a pre-existing MD5 hash
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* @param MD5 $hash
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*/
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public function setPasswordHash($hash)
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{
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$this->password = trim($hash);
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}
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/**
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* @param string $authenticationMethod
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*/
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public function setAuthenticationMethod($string)
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{
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$this->authenticationMethod = $string;
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if ($this->authenticationMethod != 'local') {
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$this->password = null;
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$this->saveLocalPassword();
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}
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}
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/**
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* @param Person $person
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*/
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public function setPerson($person)
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{
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$this->person_id = $person->getId();
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$this->person = $person;
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}
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//----------------------------------------------------------------
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// Custom Functions
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// We recommend adding all your custom code down here at the bottom
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//----------------------------------------------------------------
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/**
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* @return string
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*/
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public function getFirstname()
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{
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return $this->getPerson()->getFirstname();
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}
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/**
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* @return string
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*/
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public function getLastname()
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{
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return $this->getPerson()->getLastname();
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}
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/**
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* @return string
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*/
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public function getEmail()
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{
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return $this->getPerson()->getEmail();
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}
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/**
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* Returns an array of Role names with the role id as the array index
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*
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* @return array
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*/
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public function getRoles()
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{
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if (!count($this->roles)) {
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if ($this->id) {
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$zend_db = Database::getConnection();
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$select = new Zend_Db_Select($zend_db);
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$select->from('user_roles','role_id')
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->joinLeft('roles','role_id=id','name')
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->where('user_id=?');
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$result = $zend_db->fetchAll($select,$this->id);
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foreach ($result as $row) {
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$this->roles[$row['role_id']] = $row['name'];
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}
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}
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}
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return $this->roles;
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}
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/**
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* Takes an array of role names. Loads the Roles from the database
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*
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* @param array $roleNames An array of names
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*/
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public function setRoles($roleNames)
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{
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$this->roles = array();
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foreach ($roleNames as $name) {
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$role = new Role($name);
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$this->roles[$role->getId()] = $role->getName();
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}
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}
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/**
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* Takes a string or an array of strings and checks if the user has that role
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*
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* @param Array|String $roles
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* @return boolean
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*/
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public function hasRole($roles)
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{
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if (is_array($roles)) {
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foreach ($roles as $roleName) {
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if (in_array($roleName,$this->getRoles())) {
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return true;
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}
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}
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return false;
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}
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else {
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return in_array($roles,$this->getRoles());
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}
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}
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/**
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* Saves the current roles back to the database
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*/
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private function updateRoles()
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{
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$zend_db = Database::getConnection();
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$roles = $this->getRoles();
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$zend_db->delete('user_roles',"user_id={$this->id}");
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foreach ($roles as $id=>$name) {
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$data = array('user_id'=>$this->id,'role_id'=>$id);
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$zend_db->insert('user_roles',$data);
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}
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}
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/**
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* Since passwords can be stored externally, we only want to bother trying
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* to save them when they've actually changed
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* @return boolean
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*/
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public function passwordHasChanged()
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{
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return $this->newPassword ? true : false;
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}
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/**
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* Callback function from the SystemUser class
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* The SystemUser will determine where the password should be stored.
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* If the password is stored locally, it will call this function
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*/
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protected function saveLocalPassword()
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{
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if ($this->id) {
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$zend_db = Database::getConnection();
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// Passwords in the class should already be MD5 hashed
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$zend_db->update('users',array('password'=>$this->password),"id={$this->id}");
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}
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}
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/**
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* Callback function from the SystemUser class
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*
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* The SystemUser class will determine where the authentication
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* should occur. If the user should be authenticated locally,
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* this function will be called.
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*
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* @param string $password
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* @return boolean
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*/
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protected function authenticateDatabase($password)
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{
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$zend_db = Database::getConnection();
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$md5 = md5($password);
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$id = $zend_db->fetchOne('select id from users where username=? and password=?',
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array($this->username,$md5));
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return $id ? true : false;
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}
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}
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