iamdoubz
996685e1ab
Its Contact holds pn-prid=...:voip&...:remote, and PJSIP_DIAL_CONTACTS passes that '&' through, so Dial rejected the whole device list and the call dropped for every device of the user. sp-sub-contacts walks the AOR's contacts, drops pn-* params and FILTERs the rest. call-test registers a phone with such a Contact and checks it is rung.
79 lines
3.2 KiB
JavaScript
79 lines
3.2 KiB
JavaScript
// SPDX-License-Identifier: AGPL-3.0-or-later
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// A phone that registers like iOS Linphone: push params holding '&' in its Contact. Answers
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// qualify OPTIONS, prints the Request-URI of each INVITE ("INVITE <uri>") and turns it down (486),
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// so the real phone on the same extension takes the call. call-test.ts runs it.
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// Usage: node pn-phone.mjs <asterisk host> <user> <password>
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import { createHash, randomUUID } from 'node:crypto';
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import { createSocket } from 'node:dgram';
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import { lookup } from 'node:dns/promises';
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import { networkInterfaces } from 'node:os';
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const [astHost, user, pass] = process.argv.slice(2);
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const md5 = (s) => createHash('md5').update(s).digest('hex');
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const ast = (await lookup(astHost)).address;
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const me = Object.values(networkInterfaces())
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.flat()
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.find((i) => i.family === 'IPv4' && !i.internal).address;
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const PORT = 5080;
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const uri = `sip:${astHost}`;
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const callId = randomUUID();
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const tag = randomUUID().slice(0, 8);
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const contact =
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`<sip:${user}@${me}:${PORT};pn-prid=AAAA1111:voip&bbbb2222:remote;pn-provider=apns;` +
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`pn-param=ABCD1234.org.linphone.phone.voip&remote;x-test=keep-me>`;
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const sock = createSocket('udp4');
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const send = (msg) => sock.send(msg, 5060, ast);
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const register = (cseq, auth) =>
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[
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`REGISTER ${uri} SIP/2.0`,
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`Via: SIP/2.0/UDP ${me}:${PORT};rport;branch=z9hG4bK${randomUUID().slice(0, 12)}`,
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'Max-Forwards: 70',
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`From: <sip:${user}@${astHost}>;tag=${tag}`,
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`To: <sip:${user}@${astHost}>`,
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`Call-ID: ${callId}`,
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`CSeq: ${cseq} REGISTER`,
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`Contact: ${contact}`,
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'Expires: 300',
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...(auth ? [`Authorization: ${auth}`] : []),
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'Content-Length: 0',
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'',
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'',
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].join('\r\n');
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/** A response to a request: its Via, From, Call-ID and CSeq, and a To tag. */
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const reply = (req, status) => {
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const keep = req.split('\r\n').filter((l) => /^(Via|From|To|Call-ID|CSeq):/i.test(l));
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const lines = keep.map((l) => (/^To:/i.test(l) && !/;tag=/.test(l) ? `${l};tag=${tag}` : l));
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return [`SIP/2.0 ${status}`, ...lines, 'Content-Length: 0', '', ''].join('\r\n');
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};
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sock.on('message', (buf) => {
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const msg = buf.toString();
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const first = msg.split('\r\n')[0];
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const challenge = /WWW-Authenticate: Digest (.*)/i.exec(msg)?.[1];
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if (first.includes(' 401 ') && challenge) {
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const p = Object.fromEntries(
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[...challenge.matchAll(/(\w+)="?([^",]*)"?/g)].map((m) => [m[1], m[2]]),
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);
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const cnonce = randomUUID().slice(0, 8);
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const ha1 = md5(`${user}:${p.realm}:${pass}`);
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const ha2 = md5(`REGISTER:${uri}`);
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const response = md5(`${ha1}:${p.nonce}:00000001:${cnonce}:auth:${ha2}`);
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send(
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register(
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2,
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`Digest username="${user}", realm="${p.realm}", nonce="${p.nonce}", uri="${uri}", ` +
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`response="${response}", algorithm=MD5, qop=auth, nc=00000001, cnonce="${cnonce}"` +
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(p.opaque ? `, opaque="${p.opaque}"` : ''),
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),
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);
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} else if (first.startsWith('SIP/2.0 ')) console.log(`REGISTER ${first}`);
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else if (first.startsWith('OPTIONS ')) send(reply(msg, '200 OK'));
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else if (first.startsWith('INVITE ')) {
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console.log(first.split(' ').slice(0, 2).join(' '));
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send(reply(msg, '486 Busy Here'));
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}
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});
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sock.bind(PORT, () => send(register(1)));
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