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   1  <?php
   2  /**
   3   * Class representing vEvents.
   4   *
   5   * $Horde: framework/iCalendar/iCalendar/vevent.php,v 1.31 2004/08/18 03:16:24 chuck Exp $
   6   *
   7   * Copyright 2003-2004 Mike Cochrane <mike@graftonhall.co.nz>
   8   *
   9   * See the enclosed file COPYING for license information (LGPL). If you
  10   * did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
  11   *
  12   * @author  Mike Cochrane <mike@graftonhall.co.nz>
  13   * @version $Revision: 18927 $
  14   * @since   Horde 3.0
  15   * @package Horde_iCalendar
  16   */
  17  class Horde_iCalendar_vevent extends Horde_iCalendar {
  18  
  19      function getType()
  20      {
  21          return 'vEvent';
  22      }
  23  
  24      function parsevCalendar($data)
  25      {
  26          parent::parsevCalendar($data, 'VEVENT');
  27      }
  28  
  29      function exportvCalendar()
  30      {
  31          // Default values.
  32          $requiredAttributes = array();
  33          $requiredAttributes['DTSTAMP'] = time();
  34          #$requiredAttributes['ORGANIZER'] = 'Unknown Organizer';
  35          $requiredAttributes['UID'] = $this->_exportDateTime(time()) . '@' . $_SERVER['SERVER_NAME'];
  36  
  37          $method = !empty($this->_container) ?
  38              $this->_container->getAttribute('METHOD') : 'PUBLISH';
  39  
  40          switch ($method) {
  41          case 'PUBLISH':
  42              $requiredAttributes['DTSTART']  = time();
  43              $requiredAttributes['SUMMARY']  = '';
  44              break;
  45  
  46          case 'REQUEST':
  47              $requiredAttributes['ATTENDEE'] = '';
  48              $requiredAttributes['DTSTART']  = time();
  49              $requiredAttributes['SUMMARY']  = '';
  50              break;
  51  
  52          case 'REPLY':
  53              $requiredAttributes['ATTENDEE'] = '';
  54              break;
  55  
  56          case 'ADD':
  57              $requiredAttributes['DTSTART']  = time();
  58              $requiredAttributes['SEQUENCE'] = 1;
  59              $requiredAttributes['SUMMARY']  = '';
  60              break;
  61  
  62          case 'CANCEL':
  63              $requiredAttributes['ATTENDEE'] = '';
  64              $requiredAttributes['SEQUENCE'] = 1;
  65              break;
  66  
  67          case 'REFRESH':
  68              $requiredAttributes['ATTENDEE'] = '';
  69              break;
  70          }
  71  
  72          foreach ($requiredAttributes as $name => $default_value) {
  73              if (is_a($this->getAttribute($name), 'PEAR_Error')) {
  74                  $this->setAttribute($name, $default_value);
  75              }
  76          }
  77  
  78          return parent::_exportvData('VEVENT');
  79      }
  80  
  81      /**
  82       * Update the status of an attendee of an event.
  83       *
  84       * @param $email    The email address of the attendee.
  85       * @param $status   The participant status to set.
  86       * @param $fullname The full name of the participant to set.
  87       */
  88      function updateAttendee($email, $status, $fullname = '')
  89      {
  90          foreach ($this->_attributes as $key => $attribute) {
  91              if ($attribute['name'] == 'ATTENDEE' && $attribute['value'] == 'MAILTO:' . $email) {
  92                  $this->_attributes[$key]['params']['PARTSTAT'] = $status;
  93                  if (!empty($fullname)) {
  94                      $this->_attributes[$key]['params']['CN'] = $fullname;
  95                  }
  96                  unset($this->_attributes[$key]['params']['RSVP']);
  97                  return;
  98              }
  99          }
 100          $params = array('PARTSTAT' => $status);
 101          if (!empty($fullname)) {
 102              $params['CN'] = $fullname;
 103          }
 104          $this->setAttribute('ATTENDEE', 'MAILTO:' . $email, $params);
 105      }
 106  
 107      /**
 108       * Return the organizer display name or email.
 109       *
 110       * @return string  The organizer name to display for this event.
 111       */
 112      function organizerName()
 113      {
 114          $organizer = $this->getAttribute('ORGANIZER', true);
 115          if (is_a($organizer, 'PEAR_Error')) {
 116              return null;
 117          }
 118  
 119          if (isset($organizer[0]['CN'])) {
 120              return $organizer[0]['CN'];
 121          }
 122  
 123          $organizer = parse_url($this->getAttribute('ORGANIZER'));
 124  
 125          return $organizer['path'];
 126      }
 127  
 128      /**
 129       * Update this event with details from another event.
 130       *
 131       * @param object Horde_iCalendar_vEvent $vevent  The vEvent with latest details.
 132       */
 133      function updateFromvEvent($vevent)
 134      {
 135          $newAttributes = $vevent->getAllAttributes();
 136          foreach ($newAttributes as $newAttribute) {
 137              $currentValue = $this->getAttribute($newAttribute['name']);
 138              if (is_a($currentValue, 'PEAR_error')) {
 139                  // Already exists so just add it.
 140                  $this->setAttribute($newAttribute['name'], $newAttribute['value'], $newAttribute['params']);
 141              } else {
 142                  // Already exists so locate and modify.
 143                  $found = false;
 144  
 145                  // Try matching the attribte name and value incase
 146                  // only the params changed (eg attendee updating
 147                  // status).
 148                  foreach ($this->_attributes as $id => $attr) {
 149                      if ($attr['name'] == $newAttribute['name'] &&
 150                          $attr['value'] == $newAttribute['value']) {
 151                          // merge the params
 152                          foreach ($newAttribute['params'] as $param_id => $param_name) {
 153                              $this->_attributes[$id]['params'][$param_id] = $param_name;
 154                          }
 155                          $found = true;
 156                          break;
 157                      }
 158                  }
 159                  if (!$found) {
 160                      // Else match the first attribute with the same
 161                      // name (eg changing start time).
 162                      foreach ($this->_attributes as $id => $attr) {
 163                          if ($attr['name'] == $newAttribute['name']) {
 164                              $this->_attributes[$id]['value'] = $newAttribute['value'];
 165                              // Merge the params.
 166                              foreach ($newAttribute['params'] as $param_id => $param_name) {
 167                                  $this->_attributes[$id]['params'][$param_id] = $param_name;
 168                              }
 169                              break;
 170                          }
 171                      }
 172                  }
 173              }
 174          }
 175      }
 176  
 177      /**
 178       * Update just the attendess of event with details from another
 179       * event.
 180       *
 181       * @param object Horde_iCalendar_vEvent $vevent  The vEvent with latest details
 182       */
 183      function updateAttendeesFromvEvent($vevent)
 184      {
 185          $newAttributes = $vevent->getAllAttributes();
 186          foreach ($newAttributes as $newAttribute) {
 187              if (!$newAttribute['name'] == 'ATTENDEE') {
 188                  continue;
 189              }
 190              $currentValue = $this->getAttribute($newAttribute['name']);
 191              if (is_a($currentValue, 'PEAR_error')) {
 192                  // Already exists so just add it.
 193                  $this->setAttribute($newAttribute['name'], $newAttribute['value'], $newAttribute['params']);
 194              } else {
 195                  // Already exists so locate and modify.
 196                  $found = false;
 197                  // Try matching the attribte name and value incase
 198                  // only the params changed (eg attendee updating
 199                  // status).
 200                  foreach ($this->_attributes as $id => $attr) {
 201                      if ($attr['name'] == $newAttribute['name'] &&
 202                          $attr['value'] == $newAttribute['value']) {
 203                          // Merge the params.
 204                          foreach ($newAttribute['params'] as $param_id => $param_name) {
 205                              $this->_attributes[$id]['params'][$param_id] = $param_name;
 206                          }
 207                          $found = true;
 208                          break;
 209                      }
 210                  }
 211  
 212                  if (!$found) {
 213                      // Else match the first attribute with the same
 214                      // name (eg changing start time).
 215                      foreach ($this->_attributes as $id => $attr) {
 216                          if ($attr['name'] == $newAttribute['name']) {
 217                              $this->_attributes[$id]['value'] = $newAttribute['value'];
 218                              // Merge the params.
 219                              foreach ($newAttribute['params'] as $param_id => $param_name) {
 220                                  $this->_attributes[$id]['params'][$param_id] = $param_name;
 221                              }
 222                              break;
 223                          }
 224                      }
 225                  }
 226              }
 227          }
 228      }
 229  
 230  }