DAViCal
DAViCalSession.php
1 <?php
17 $session = 1; // Fake initialisation
18 
19 // The Session object uses some (optional) configurable SQL to load
20 // the records related to the logged-on user... (the where clause gets added).
21 // It's very important that someone not be able to externally control this,
22 // so we make it a function rather than a variable.
26 function local_session_sql() {
27  $sql = <<<EOSQL
28 SELECT session.*, usr.*, principal.*
29  FROM session JOIN usr USING(user_no) JOIN principal USING(user_no)
30 EOSQL;
31  return $sql;
32 }
33 
37 require('Session.php');
38 include_once('DAVResource.php');
39 
40 
41 @Session::_CheckLogout();
42 
48 class DAViCalSession extends Session
49 {
50 
51  public $principal_id;
52  private $privilege_resources = array();
53 
62  function __construct( $sid='' ) {
63  $this->principal_id = null;
64  parent::__construct($sid);
65  }
66 
67 
72  function AssignSessionDetails( $u ) {
73  if ( !isset($u->principal_id) ) {
74  // If they don't have a principal_id set then we should re-read from our local database
75  $qry = new AwlQuery('SELECT * FROM dav_principal WHERE username = :username', array(':username' => $u->username) );
76  if ( $qry->Exec() && $qry->rows() == 1 ) {
77  $u = $qry->Fetch();
78  }
79  }
80 
81  parent::AssignSessionDetails( $u );
82  $this->GetRoles();
83  if ( function_exists('awl_set_locale') && isset($this->locale) && $this->locale != '' ) {
84  awl_set_locale($this->locale);
85  }
86  }
87 
88 
92  function GetRoles () {
93  $this->roles = array();
94  $sql = 'SELECT role_name FROM roles JOIN role_member ON roles.role_no=role_member.role_no WHERE user_no = '.$this->user_no;
95  $qry = new AwlQuery( $sql );
96  if ( $qry->Exec('DAViCalSession') && $qry->rows() > 0 ) {
97  while( $role = $qry->Fetch() ) {
98  $this->roles[$role->role_name] = 1;
99  }
100  }
101  }
102 
103 
111  function HavePrivilegeTo( $do_what, $path, $any = null ) {
112  if ( $this->AllowedTo('Admin') ) return true;
113  if ( !isset($this->privilege_resources[$path]) ) {
114  $this->privilege_resources[$path] = new DAVResource($path);
115  }
116  $resource = $this->privilege_resources[$path];
117  if ( isset($resource) && $resource->Exists() ) {
118  return $resource->HavePrivilegeTo($do_what,$any);
119  }
120  return false;
121  }
122 
123 
124 
134  function LoginRequired( $roles = '' ) {
135  global $c, $session, $main_menu, $sub_menu, $tab_menu;
136 
137  $current_domain = (isset($_SERVER['SERVER_NAME'])?$_SERVER['SERVER_NAME']:$_SERVER['SERVER_ADDR']);
138  if ( (isset($c->restrict_admin_domain) && $c->restrict_admin_domain != $current_domain)
139  || (isset($c->restrict_admin_port) && $c->restrict_admin_port != $_SERVER['SERVER_PORT'] ) ) {
140  header('Location: caldav.php');
141  dbg_error_log( 'LOG WARNING', 'Access to "%s" via "%s:%d" rejected.', $_SERVER['REQUEST_URI'], $current_domain, $_SERVER['SERVER_PORT'] );
142  @ob_flush(); exit(0);
143  }
144  if ( isset($c->restrict_admin_roles) && $roles == '' ) $roles = $c->restrict_admin_roles;
145  if ( $this->logged_in && $roles == '' ) return;
146 
150  if ( isset($_SERVER['PHP_AUTH_USER']) && !$this->logged_in && $_SERVER['PHP_AUTH_USER'] != "" && $_SERVER['PHP_AUTH_PW'] != "" && ! $_COOKIE['NoAutoLogin'] ) {
151  if ( $this->Login($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW'],false)) {
152  setcookie('NoAutoLogin',1,0);
153  return;
154  }
155  }
156  if ( ! $this->logged_in ) {
157  $c->messages[] = i18n('You must log in to use this system.');
158  include_once('page-header.php');
159  if ( function_exists('local_index_not_logged_in') ) {
160  local_index_not_logged_in();
161  }
162  else {
163  if ( $this->login_failed ) {
164  $c->messages[] = i18n('Invalid user name or password.');
165  }
166  echo '<h1>'.translate('Log On Please')."</h1>\n";
167  echo '<p>'.translate('For access to the')
168  .' '.translate($c->system_name).' '
169  .translate('you should log on with the username and password that have been issued to you.')
170  ."</p>\n";
171  echo '<p>'.translate('If you would like to request access, please e-mail').' '.$c->admin_email."</p>\n";
172  echo $this->RenderLoginPanel();
173  }
174  }
175  else {
176  $valid_roles = explode(',', $roles);
177  foreach( $valid_roles AS $k => $v ) {
178  if ( $this->AllowedTo($v) ) return;
179  }
180  $c->messages[] = i18n('You are not authorised to use this function.');
181  include_once('page-header.php');
182  }
183 
184  include('page-footer.php');
185  @ob_flush(); exit(0);
186  }
187 }
188 
189 $session = new DAViCalSession();
190 $session->_CheckLogin();
191 
HavePrivilegeTo( $do_what, $path, $any=null)
LoginRequired( $roles='')
__construct( $sid='')