mirror of
https://github.com/YunoHost-Apps/movim_ynh.git
synced 2024-09-03 19:46:19 +02:00
344 lines
14 KiB
PHP
344 lines
14 KiB
PHP
<?php
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class JingletoSDP {
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private $sdp = '';
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private $jingle;
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private $action;
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// Only used for ICE Candidate (Jingle transport-info)
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public $media;
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private $values = array(
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'session_sdp_id' => 1,
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'session_version' => 0,
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'nettype' => 'IN',
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'addrtype' => 'IP4',
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'unicast_address' => '0.0.0.0'
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);
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function __construct($jingle) {
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$this->jingle = $jingle;
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if(isset($this->jingle->attributes()->sid)) {
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$sid = (string)$this->jingle->attributes()->sid;
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//$sid = substr(base_convert($sid, 30, 10), 0, 6);
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$s = Session::start();
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$s->set('jingleSid', $sid);
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//$this->values['session_id'] = $sid;
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}
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$this->action = (string)$this->jingle->attributes()->action;
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}
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function getSessionId(){
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$s = Session::start();
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/*if($sid = $s->get('jingleSid')){
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return $sid;
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}
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else{
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$sessid = $this->jingle->attributes()->sid;
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return substr(base_convert($sessid, 30, 10), 0, 6);
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}*/
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return substr(base_convert($s->get('jingleSid'), 30, 10), 0, 6);
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}
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function generate() {
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if($this->jingle->attributes()->initiator) {
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$username = explode('@', (string)$this->jingle->attributes()->initiator);
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$username = $username[0];
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} else
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$username = '-';
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$this->values['session_sdp_id'] = $this->getSessionId();
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$sdp_version =
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'v=0';
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$sdp_origin =
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'o='.
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$username.' '.
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$this->values['session_sdp_id'].' '.
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$this->values['session_version'].' '.
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$this->values['nettype'].' '.
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$this->values['addrtype'].' '.
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$this->values['unicast_address'];
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$sdp_session_name =
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's=SIP Call'; // Use the sessid ?
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$sdp_timing =
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't=0 0';
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$sdp_medias = '';
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foreach($this->jingle->children() as $content) {
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$media_header_ids = array();
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$media_header_first_port = null;
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$media_header_last_ip = null;
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$sdp_media = '';
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// http://xmpp.org/extensions/xep-0338.html
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if((string)$content->getName() == 'group') {
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$sdp_media .=
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"\r\na=group:".
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(string)$content->attributes()->semantics;
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foreach($content->children() as $content) {
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$sdp_media .= " ".(string)$content->attributes()->name;
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}
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}
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if($content->getName() != 'content')
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break;
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if(isset($content->transport->attributes()->ufrag))
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$sdp_media .= "\r\na=ice-ufrag:".$content->transport->attributes()->ufrag;
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if(isset($content->transport->attributes()->pwd))
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$sdp_media .= "\r\na=ice-pwd:".$content->transport->attributes()->pwd;
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if(isset($content->description)) {
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foreach($content->description->children() as $payload) {
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switch($payload->getName()) {
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case 'rtp-hdrext':
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$sdp_media .=
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"\r\na=extmap:".
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$payload->attributes()->id;
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if(isset($payload->attributes()->senders))
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$sdp_media .= ' '.$payload->attributes()->senders;
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$sdp_media .= ' '.$payload->attributes()->uri;
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break;
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case 'rtcp-mux':
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$sdp_media .=
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"\r\na=rtcp-mux";
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case 'encryption':
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if(isset($payload->crypto)) {
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$sdp_media .=
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"\r\na=crypto:".
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$payload->crypto->attributes()->tag.' '.
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$payload->crypto->attributes()->{'crypto-suite'}.' '.
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$payload->crypto->attributes()->{'key-params'};
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// TODO session params ?
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}
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if(isset($payload->{'zrtp-hash'})) {
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$sdp_media .=
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"\r\na=zrtp-hash:".
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$payload->{'zrtp-hash'}->attributes()->version.' '.
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(string)$payload->{'zrtp-hash'};
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}
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break;
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case 'payload-type':
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$sdp_media .=
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"\r\na=rtpmap:".
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$payload->attributes()->id;
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array_push($media_header_ids, $payload->attributes()->id);
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if(isset($payload->attributes()->name)) {
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$sdp_media .= ' '.$payload->attributes()->name;
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if(isset($payload->attributes()->clockrate)) {
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$sdp_media .= '/'.$payload->attributes()->clockrate;
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if(isset($payload->attributes()->channels)) {
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$sdp_media .= '/'.$payload->attributes()->channels;
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}
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}
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}
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$first_fmtp = true;
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foreach($payload->children() as $param) {
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switch($param->getName()) {
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case 'rtcp-fb' :
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$sdp_media .=
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"\r\na=rtcp-fb:".
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$param->attributes()->id.' '.
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$param->attributes()->type;
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if(isset($param->attributes()->subtype)) {
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$sdp_media .= ' '.$param->attributes()->subtype;
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}
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break;
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// http://xmpp.org/extensions/xep-0167.html#format
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case 'parameter' :
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if($first_fmtp) {
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$sdp_media .=
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"\r\na=fmtp:".
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$payload->attributes()->id.
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' ';
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} else {
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$sdp_media .= '; ';
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}
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if(isset($param->attributes()->name)) {
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$sdp_media .=
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$param->attributes()->name.
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'=';
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}
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$sdp_media .=
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$param->attributes()->value;
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$first_fmtp = false;
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break;
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}
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// TODO rtcp_fb_trr_int ?
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}
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break;
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/*case 'source':
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foreach($payload->children() as $s) {
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$sdp_media .=
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"\r\na=ssrc:".$payload->attributes()->id.' '.
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$s->attributes()->name.':'.
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$s->attributes()->value;
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}
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break;*/
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}
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// TODO sendrecv ?
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}
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}
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if(isset($content->description)
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&& isset($content->description->attributes()->ptime)) {
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$sdp_media .=
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"\r\na=ptime:".$content->description->attributes()->ptime;
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}
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if(isset($content->description)
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&& isset($content->description->attributes()->maxptime)) {
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$sdp_media .=
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"\r\na=maxptime:".$content->description->attributes()->maxptime;
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}
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foreach($content->transport->children() as $payload) {
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switch($payload->getName()) {
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case 'fingerprint':
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if(isset($content->transport->fingerprint->attributes()->hash)) {
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$sdp_media .=
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"\r\na=fingerprint:".
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$content->transport->fingerprint->attributes()->hash.
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' '.
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$content->transport->fingerprint;
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}
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if(isset($content->transport->fingerprint->attributes()->setup)) {
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$sdp_media .=
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"\r\na=setup:".
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$content->transport->fingerprint->attributes()->setup;
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}
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break;
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// http://xmpp.org/extensions/inbox/jingle-dtls.html
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case 'sctpmap':
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$sdp_media .=
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"\r\na=sctpmap:".
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$payload->attributes()->number.' '.
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$payload->attributes()->protocol.' '.
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$payload->attributes()->streams.' '
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;
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array_push($media_header_ids, $payload->attributes()->number);
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break;
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case 'candidate':
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$sdp_media .=
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"\r\na=candidate:".
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$payload->attributes()->foundation.' '.
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$payload->attributes()->component.' '.
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$payload->attributes()->protocol.' '.
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$payload->attributes()->priority.' '.
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$payload->attributes()->ip.' '.
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$payload->attributes()->port.' '.
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'typ '.$payload->attributes()->type;
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if(isset($payload->attributes()->{'rel-addr'})
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&& isset($payload->attributes()->{'rel-port'})) {
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$sdp_media .=
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' raddr '.$payload->attributes()->{'rel-addr'}.
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' rport '.$payload->attributes()->{'rel-port'};
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if($media_header_first_port == null)
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$media_header_first_port = $payload->attributes()->port;
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}
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if(isset($payload->attributes()->generation)) {
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$sdp_media .=
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' generation '.$payload->attributes()->generation.
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' network '.$payload->attributes()->network.
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' id '.$payload->attributes()->id;
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}
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$media_header_last_ip = $payload->attributes()->ip;
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break;
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}
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}
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if($media_header_first_port == null)
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$media_header_first_port = 1;
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if($media_header_last_ip == null)
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$media_header_last_ip = '0.0.0.0';
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if(isset($content->description))
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$this->media = (string)$content->description->attributes()->media;
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else
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$this->media = (string)$content->attributes()->name;
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if($this->action != 'transport-info') {
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$sdp_media_header =
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"\r\nm=".$this->media.
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' '.$media_header_first_port.' ';
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if(isset($content->transport->sctpmap)) {
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$sdp_media_header .= 'DTLS/SCTP';
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} elseif(isset($content->description->crypto)
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|| isset($content->transport->fingerprint)) {
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$sdp_media_header .= 'RTP/SAVPF';
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} else {
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$sdp_media_header .= 'RTP/AVP';
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}
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$sdp_media_header = $sdp_media_header.' '.implode(' ', $media_header_ids);
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$sdp_medias .=
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$sdp_media_header.
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"\r\nc=IN IP4 ".$media_header_last_ip.
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$sdp_media;
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//"\r\na=sendrecv";
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} else {
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$sdp_medias = $sdp_media;
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}
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}
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if($this->action != 'transport-info') {
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$this->sdp .= /*"\r\n".*/$sdp_version;
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$this->sdp .= "\r\n".$sdp_origin;
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$this->sdp .= "\r\n".$sdp_session_name;
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$this->sdp .= "\r\n".$sdp_timing;
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}
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$this->sdp .= $sdp_medias;
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return $this->sdp."\r\n";
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}
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}
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