root/modules/branches/2.4/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;
    }
}

function conferences_getdest($exten) {
    return array('ext-meetme,'.$exten.',1');
}

function conferences_getdestinfo($dest) {
    global $active_modules;

    if (substr(trim($dest),0,11) == 'ext-meetme,') {
        $exten = explode(',',$dest);
        $exten = $exten[1];
        $thisexten = conferences_get($exten);
        if (empty($thisexten)) {
            return array();
        } else {
            //$type = isset($active_modules['announcement']['type'])?$active_modules['announcement']['type']:'setup';
            return array('description' => 'Conference Room '.$exten.': '.$thisexten['description'],
                         'edit_url' => 'config.php?display=conferences&extdisplay='.urlencode($exten),
                                  );
        }
    } else {
        return false;
    }
}

/*     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;
    }
}

function conferences_check_extensions($exten=true) {
    $extenlist = array();
    if (is_array($exten) && empty($exten)) {
        return $extenlist;
    }
    $sql = "SELECT exten, description FROM meetme ";
    if (is_array($exten)) {
        $sql .= "WHERE exten in ('".implode("','",$exten)."')";
    }
    $sql .= " ORDER BY exten";
    $results = sql($sql,"getAll",DB_FETCHMODE_ASSOC);

    foreach ($results as $result) {
        $thisexten = $result['exten'];
        $extenlist[$thisexten]['description'] = _("Conference: ").$result['description'];
        $extenlist[$thisexten]['status'] = 'INUSE';
        $extenlist[$thisexten]['edit_url'] = 'config.php?display=conferences&extdisplay='.urlencode($thisexten);
    }
    return $extenlist;
}

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