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Diffstat (limited to 'contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.util.js')
-rw-r--r-- | contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.util.js | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.util.js b/contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.util.js deleted file mode 100644 index 042a123c32..0000000000 --- a/contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.util.js +++ /dev/null @@ -1,408 +0,0 @@ -/** - * Contains utility classes used in SDP class. - * - */ - -/** - * Class holds a=ssrc lines and media type a=mid - * @param ssrc synchronization source identifier number(a=ssrc lines from SDP) - * @param type media type eg. "audio" or "video"(a=mid frm SDP) - * @constructor - */ -function ChannelSsrc(ssrc, type) { - this.ssrc = ssrc; - this.type = type; - this.lines = []; -} - -/** - * Class holds a=ssrc-group: lines - * @param semantics - * @param ssrcs - * @constructor - */ -function ChannelSsrcGroup(semantics, ssrcs, line) { - this.semantics = semantics; - this.ssrcs = ssrcs; -} - -/** - * Helper class represents media channel. Is a container for ChannelSsrc, holds channel idx and media type. - * @param channelNumber channel idx in SDP media array. - * @param mediaType media type(a=mid) - * @constructor - */ -function MediaChannel(channelNumber, mediaType) { - /** - * SDP channel number - * @type {*} - */ - this.chNumber = channelNumber; - /** - * Channel media type(a=mid) - * @type {*} - */ - this.mediaType = mediaType; - /** - * The maps of ssrc numbers to ChannelSsrc objects. - */ - this.ssrcs = {}; - - /** - * The array of ChannelSsrcGroup objects. - * @type {Array} - */ - this.ssrcGroups = []; -} - -SDPUtil = { - iceparams: function (mediadesc, sessiondesc) { - var data = null; - if (SDPUtil.find_line(mediadesc, 'a=ice-ufrag:', sessiondesc) && - SDPUtil.find_line(mediadesc, 'a=ice-pwd:', sessiondesc)) { - data = { - ufrag: SDPUtil.parse_iceufrag(SDPUtil.find_line(mediadesc, 'a=ice-ufrag:', sessiondesc)), - pwd: SDPUtil.parse_icepwd(SDPUtil.find_line(mediadesc, 'a=ice-pwd:', sessiondesc)) - }; - } - return data; - }, - parse_iceufrag: function (line) { - return line.substring(12); - }, - build_iceufrag: function (frag) { - return 'a=ice-ufrag:' + frag; - }, - parse_icepwd: function (line) { - return line.substring(10); - }, - build_icepwd: function (pwd) { - return 'a=ice-pwd:' + pwd; - }, - parse_mid: function (line) { - return line.substring(6); - }, - parse_mline: function (line) { - var parts = line.substring(2).split(' '), - data = {}; - data.media = parts.shift(); - data.port = parts.shift(); - data.proto = parts.shift(); - if (parts[parts.length - 1] === '') { // trailing whitespace - parts.pop(); - } - data.fmt = parts; - return data; - }, - build_mline: function (mline) { - return 'm=' + mline.media + ' ' + mline.port + ' ' + mline.proto + ' ' + mline.fmt.join(' '); - }, - parse_rtpmap: function (line) { - var parts = line.substring(9).split(' '), - data = {}; - data.id = parts.shift(); - parts = parts[0].split('/'); - data.name = parts.shift(); - data.clockrate = parts.shift(); - data.channels = parts.length ? parts.shift() : '1'; - return data; - }, - /** - * Parses SDP line "a=sctpmap:..." and extracts SCTP port from it. - * @param line eg. "a=sctpmap:5000 webrtc-datachannel" - * @returns [SCTP port number, protocol, streams] - */ - parse_sctpmap: function (line) - { - var parts = line.substring(10).split(' '); - var sctpPort = parts[0]; - var protocol = parts[1]; - // Stream count is optional - var streamCount = parts.length > 2 ? parts[2] : null; - return [sctpPort, protocol, streamCount];// SCTP port - }, - build_rtpmap: function (el) { - var line = 'a=rtpmap:' + el.getAttribute('id') + ' ' + el.getAttribute('name') + '/' + el.getAttribute('clockrate'); - if (el.getAttribute('channels') && el.getAttribute('channels') != '1') { - line += '/' + el.getAttribute('channels'); - } - return line; - }, - parse_crypto: function (line) { - var parts = line.substring(9).split(' '), - data = {}; - data.tag = parts.shift(); - data['crypto-suite'] = parts.shift(); - data['key-params'] = parts.shift(); - if (parts.length) { - data['session-params'] = parts.join(' '); - } - return data; - }, - parse_fingerprint: function (line) { // RFC 4572 - var parts = line.substring(14).split(' '), - data = {}; - data.hash = parts.shift(); - data.fingerprint = parts.shift(); - // TODO assert that fingerprint satisfies 2UHEX *(":" 2UHEX) ? - return data; - }, - parse_fmtp: function (line) { - var parts = line.split(' '), - i, key, value, - data = []; - parts.shift(); - parts = parts.join(' ').split(';'); - for (i = 0; i < parts.length; i++) { - key = parts[i].split('=')[0]; - while (key.length && key[0] == ' ') { - key = key.substring(1); - } - value = parts[i].split('=')[1]; - if (key && value) { - data.push({name: key, value: value}); - } else if (key) { - // rfc 4733 (DTMF) style stuff - data.push({name: '', value: key}); - } - } - return data; - }, - parse_icecandidate: function (line) { - var candidate = {}, - elems = line.split(' '); - candidate.foundation = elems[0].substring(12); - candidate.component = elems[1]; - candidate.protocol = elems[2].toLowerCase(); - candidate.priority = elems[3]; - candidate.ip = elems[4]; - candidate.port = elems[5]; - // elems[6] => "typ" - candidate.type = elems[7]; - candidate.generation = 0; // default value, may be overwritten below - for (var i = 8; i < elems.length; i += 2) { - switch (elems[i]) { - case 'raddr': - candidate['rel-addr'] = elems[i + 1]; - break; - case 'rport': - candidate['rel-port'] = elems[i + 1]; - break; - case 'generation': - candidate.generation = elems[i + 1]; - break; - case 'tcptype': - candidate.tcptype = elems[i + 1]; - break; - default: // TODO - console.log('parse_icecandidate not translating "' + elems[i] + '" = "' + elems[i + 1] + '"'); - } - } - candidate.network = '1'; - candidate.id = Math.random().toString(36).substr(2, 10); // not applicable to SDP -- FIXME: should be unique, not just random - return candidate; - }, - build_icecandidate: function (cand) { - var line = ['a=candidate:' + cand.foundation, cand.component, cand.protocol, cand.priority, cand.ip, cand.port, 'typ', cand.type].join(' '); - line += ' '; - switch (cand.type) { - case 'srflx': - case 'prflx': - case 'relay': - if (cand.hasOwnAttribute('rel-addr') && cand.hasOwnAttribute('rel-port')) { - line += 'raddr'; - line += ' '; - line += cand['rel-addr']; - line += ' '; - line += 'rport'; - line += ' '; - line += cand['rel-port']; - line += ' '; - } - break; - } - if (cand.hasOwnAttribute('tcptype')) { - line += 'tcptype'; - line += ' '; - line += cand.tcptype; - line += ' '; - } - line += 'generation'; - line += ' '; - line += cand.hasOwnAttribute('generation') ? cand.generation : '0'; - return line; - }, - parse_ssrc: function (desc) { - // proprietary mapping of a=ssrc lines - // TODO: see "Jingle RTP Source Description" by Juberti and P. Thatcher on google docs - // and parse according to that - var lines = desc.split('\r\n'), - data = {}; - for (var i = 0; i < lines.length; i++) { - if (lines[i].substring(0, 7) == 'a=ssrc:') { - var idx = lines[i].indexOf(' '); - data[lines[i].substr(idx + 1).split(':', 2)[0]] = lines[i].substr(idx + 1).split(':', 2)[1]; - } - } - return data; - }, - parse_rtcpfb: function (line) { - var parts = line.substr(10).split(' '); - var data = {}; - data.pt = parts.shift(); - data.type = parts.shift(); - data.params = parts; - return data; - }, - parse_extmap: function (line) { - var parts = line.substr(9).split(' '); - var data = {}; - data.value = parts.shift(); - if (data.value.indexOf('/') != -1) { - data.direction = data.value.substr(data.value.indexOf('/') + 1); - data.value = data.value.substr(0, data.value.indexOf('/')); - } else { - data.direction = 'both'; - } - data.uri = parts.shift(); - data.params = parts; - return data; - }, - find_line: function (haystack, needle, sessionpart) { - var lines = haystack.split('\r\n'); - for (var i = 0; i < lines.length; i++) { - if (lines[i].substring(0, needle.length) == needle) { - return lines[i]; - } - } - if (!sessionpart) { - return false; - } - // search session part - lines = sessionpart.split('\r\n'); - for (var j = 0; j < lines.length; j++) { - if (lines[j].substring(0, needle.length) == needle) { - return lines[j]; - } - } - return false; - }, - find_lines: function (haystack, needle, sessionpart) { - var lines = haystack.split('\r\n'), - needles = []; - for (var i = 0; i < lines.length; i++) { - if (lines[i].substring(0, needle.length) == needle) - needles.push(lines[i]); - } - if (needles.length || !sessionpart) { - return needles; - } - // search session part - lines = sessionpart.split('\r\n'); - for (var j = 0; j < lines.length; j++) { - if (lines[j].substring(0, needle.length) == needle) { - needles.push(lines[j]); - } - } - return needles; - }, - candidateToJingle: function (line) { - // a=candidate:2979166662 1 udp 2113937151 192.168.2.100 57698 typ host generation 0 - // <candidate component=... foundation=... generation=... id=... ip=... network=... port=... priority=... protocol=... type=.../> - if (line.indexOf('candidate:') === 0) { - line = 'a=' + line; - } else if (line.substring(0, 12) != 'a=candidate:') { - console.log('parseCandidate called with a line that is not a candidate line'); - console.log(line); - return null; - } - if (line.substring(line.length - 2) == '\r\n') // chomp it - line = line.substring(0, line.length - 2); - var candidate = {}, - elems = line.split(' '), - i; - if (elems[6] != 'typ') { - console.log('did not find typ in the right place'); - console.log(line); - return null; - } - candidate.foundation = elems[0].substring(12); - candidate.component = elems[1]; - candidate.protocol = elems[2].toLowerCase(); - candidate.priority = elems[3]; - candidate.ip = elems[4]; - candidate.port = elems[5]; - // elems[6] => "typ" - candidate.type = elems[7]; - - candidate.generation = '0'; // default, may be overwritten below - for (i = 8; i < elems.length; i += 2) { - switch (elems[i]) { - case 'raddr': - candidate['rel-addr'] = elems[i + 1]; - break; - case 'rport': - candidate['rel-port'] = elems[i + 1]; - break; - case 'generation': - candidate.generation = elems[i + 1]; - break; - case 'tcptype': - candidate.tcptype = elems[i + 1]; - break; - default: // TODO - console.log('not translating "' + elems[i] + '" = "' + elems[i + 1] + '"'); - } - } - candidate.network = '1'; - candidate.id = Math.random().toString(36).substr(2, 10); // not applicable to SDP -- FIXME: should be unique, not just random - return candidate; - }, - candidateFromJingle: function (cand) { - var line = 'a=candidate:'; - line += cand.getAttribute('foundation'); - line += ' '; - line += cand.getAttribute('component'); - line += ' '; - line += cand.getAttribute('protocol'); //.toUpperCase(); // chrome M23 doesn't like this - line += ' '; - line += cand.getAttribute('priority'); - line += ' '; - line += cand.getAttribute('ip'); - line += ' '; - line += cand.getAttribute('port'); - line += ' '; - line += 'typ'; - line += ' ' + cand.getAttribute('type'); - line += ' '; - switch (cand.getAttribute('type')) { - case 'srflx': - case 'prflx': - case 'relay': - if (cand.getAttribute('rel-addr') && cand.getAttribute('rel-port')) { - line += 'raddr'; - line += ' '; - line += cand.getAttribute('rel-addr'); - line += ' '; - line += 'rport'; - line += ' '; - line += cand.getAttribute('rel-port'); - line += ' '; - } - break; - } - if (cand.getAttribute('protocol').toLowerCase() == 'tcp') { - line += 'tcptype'; - line += ' '; - line += cand.getAttribute('tcptype'); - line += ' '; - } - line += 'generation'; - line += ' '; - line += cand.getAttribute('generation') || '0'; - return line + '\r\n'; - } -}; - -exports.SDPUtil = SDPUtil; - |