root/modules/branches/2.3/conferences/functions.inc.php

<?php /* $Id$ */

// extend extensions class.
// This example is about as simple as it gets
class conferences_conf {
  // return the filename to write
  function get_filename() {
    return "meetme_additional.conf";
  }
  function addMeetme($room, $pin) {
    $this->_meetmes[$room] = $pin;
  }
  // return the output that goes in the file
  function generateConf() {
    $output = "";
    if (isset($this->_meetmes) && is_array($this->_meetmes)) {
      foreach (array_keys($this->_meetmes) as $meetme) {
        $output .= 'conf => '.$meetme.",".$this->_meetmes[$meetme]."\n";
      }
    }
    return $output;
  }
}

// returns a associative arrays with keys 'destination' and 'description'
function conferences_destinations() {
  //get the list of meetmes
  $results = conferences_list();

  // return an associative array with destination and description
  if (isset($results)) {
    foreach($results as $result){
        $extens[] = array('destination' => 'ext-meetme,'.$result['0'].',1', 'description' => $result['1']." <".$result['0'].">");
    }
  return $extens;
  } else {
  return null;
  }
}


/*  Generates dialplan for conferences
  We call this with retrieve_conf
*/
function conferences_get_config($engine) {
  global $ext;  // is this the best way to pass this?
  global $conferences_conf;
  global $version;
  switch($engine) {
    case "asterisk":
      $ext->addInclude('from-internal-additional','ext-meetme');
      $contextname = 'ext-meetme';
      if(is_array($conflist = conferences_list())) {
        
        // Start the conference
        $ext->add($contextname, 'STARTMEETME', '', new ext_meetme('${MEETME_ROOMNUM}','${MEETME_OPTS}','${PIN}'));
        $ext->add($contextname, 'STARTMEETME', '', new ext_hangup(''));
        
        // hangup for whole context
        $ext->add($contextname, 'h', '', new ext_hangup(''));           
        
        foreach($conflist as $item) {
          $room = conferences_get(ltrim($item['0']));
          
          $roomnum = ltrim($item['0']);
          $roomoptions = $room['options'];
          if (version_compare($version, "1.4",">=")) {
            $roomoptions = str_replace('i','I',$roomoptions);
          }
          $roomuserpin = $room['userpin'];
          $roomadminpin = $room['adminpin'];
          $roomjoinmsg = (isset($room['joinmsg'])?$room['joinmsg']:'');
          
          // entry point
          $ext->add($contextname, $roomnum, '', new ext_macro('user-callerid'));
          $ext->add($contextname, $roomnum, '', new ext_setvar('MEETME_ROOMNUM',$roomnum));
          $ext->add($contextname, $roomnum, '', new ext_gotoif('$["${DIALSTATUS}" = "ANSWER"]',($roomuserpin == '' && $roomadminpin == '' ? 'USER' : 'READPIN')));      
          $ext->add($contextname, $roomnum, '', new ext_answer(''));
          $ext->add($contextname, $roomnum, '', new ext_wait(1));
          
          // Deal with PINs -- if exist
          if ($roomuserpin != '' || $roomadminpin != '') {
            $ext->add($contextname, $roomnum, '', new ext_setvar('PINCOUNT','0'));
            $ext->add($contextname, $roomnum, 'READPIN', new ext_read('PIN','enter-conf-pin-number'));
            
            // userpin -- must do always, otherwise if there is just an adminpin
            // there would be no way to get to the conference !
            $ext->add($contextname, $roomnum, '', new ext_gotoif('$[x${PIN} = x'.$roomuserpin.']','USER'));

            // admin pin -- exists
            if ($roomadminpin != '') {
              $ext->add($contextname, $roomnum, '', new ext_gotoif('$[x${PIN} = x'.$roomadminpin.']','ADMIN'));
            }

            // pin invalid
            $ext->add($contextname, $roomnum, '', new ext_setvar('PINCOUNT','$[${PINCOUNT}+1]'));
            $ext->add($contextname, $roomnum, '', new ext_gotoif('$[${PINCOUNT}>3]', "h"));
            $ext->add($contextname, $roomnum, '', new ext_playback('conf-invalidpin'));
            $ext->add($contextname, $roomnum, '', new ext_goto('READPIN'));
            
            // admin mode -- only valid if there is an admin pin
            if ($roomadminpin != '') {
              $ext->add($contextname, $roomnum, 'ADMIN', new ext_setvar('MEETME_OPTS','aA'.$roomoptions));
              if ($roomjoinmsg != '') {  // play joining message if one defined
                $ext->add($contextname, $roomnum, '', new ext_playback($roomjoinmsg));
              }
              $ext->add($contextname, $roomnum, '', new ext_goto('STARTMEETME,1'));             
            }
          }
          
          // user mode
          $ext->add($contextname, $roomnum, 'USER', new ext_setvar('MEETME_OPTS',$roomoptions));
          if ($roomjoinmsg != '') {  // play joining message if one defined
            $ext->add($contextname, $roomnum, '', new ext_playback($roomjoinmsg));
          }
          $ext->add($contextname, $roomnum, '', new ext_goto('STARTMEETME,1'));
          
          // add meetme config
          $conferences_conf->addMeetme($room['exten'],$room['userpin']);
        }
      }

    break;
  }
}

//get the existing meetme extensions
function conferences_list() {
  $results = sql("SELECT exten,description FROM meetme ORDER BY exten","getAll",DB_FETCHMODE_ASSOC);
  foreach($results as $result){
    // check to see if we are in-range for the current AMP User.
    if (isset($result['exten']) && checkRange($result['exten'])){
      // return this item's dialplan destination, and the description
      $extens[] = array($result['exten'],$result['description']);
    }
  }
  if (isset($extens)) {
    return $extens;
  } else {
    return null;
  }
}

function conferences_get($account){
  //get all the variables for the meetme
  $results = sql("SELECT exten,options,userpin,adminpin,description,joinmsg FROM meetme WHERE exten = '$account'","getRow",DB_FETCHMODE_ASSOC);
  return $results;
}

function conferences_del($account){
  $results = sql("DELETE FROM meetme WHERE exten = \"$account\"","query");
}

function conferences_add($account,$name,$userpin,$adminpin,$options,$joinmsg=null){
  $results = sql("INSERT INTO meetme (exten,description,userpin,adminpin,options,joinmsg) values (\"$account\",\"$name\",\"$userpin\",\"$adminpin\",\"$options\",\"$joinmsg\")");
}
?>