/usr/lib/nodejs/node-xmpp/xmpp/server.js is in node-node-xmpp 0.3.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | var dns = require('dns');
var Connection = require('./connection');
var ltx = require('ltx');
var util = require('util');
var SRV = require('./srv');
var NS_SERVER = 'jabber:server';
var NS_DIALBACK = 'jabber:server:dialback';
var NS_XMPP_SASL = 'urn:ietf:params:xml:ns:xmpp-sasl';
/**
* Dialback-specific events:
* (1) dialbackKey(from, to, key)
* (2) dialbackVerify(from, to, id, key)
* (3) dialbackVerified(from, to, id, isValid)
* (4) dialbackResult(from, to, isValid)
*/
function Server(socket) {
var self = this;
Connection.Connection.call(this, socket);
this.xmlns[''] = NS_SERVER;
this.xmlns['db'] = NS_DIALBACK;
this.xmppVersion = '1.0';
this.addListener('rawStanza', function(stanza) {
var key = stanza.getText();
if (stanza.is('result', NS_DIALBACK)) {
if (stanza.attrs.from && stanza.attrs.to &&
stanza.attrs.type) {
self.emit('dialbackResult',
stanza.attrs.from, stanza.attrs.to,
stanza.attrs.type == 'valid');
} else if (stanza.attrs.from && stanza.attrs.to) {
self.emit('dialbackKey',
stanza.attrs.from, stanza.attrs.to,
key);
}
} else if (stanza.is('verify', NS_DIALBACK)) {
if (stanza.attrs.from && stanza.attrs.to &&
stanza.attrs.id && stanza.attrs.type) {
self.emit('dialbackVerified',
stanza.attrs.from, stanza.attrs.to,
stanza.attrs.id, stanza.attrs.type == 'valid');
} else if (stanza.attrs.from && stanza.attrs.to &&
stanza.attrs.id) {
self.emit('dialbackVerify',
stanza.attrs.from, stanza.attrs.to,
stanza.attrs.id, key);
}
} else
self.emit('stanza', stanza);
});
}
util.inherits(Server, Connection.Connection);
exports.dialbackKey = function(from, to, key) {
return new ltx.Element('db:result', { to: to,
from: from }).
t(key);
};
exports.dialbackVerify = function(from, to, id, key) {
return new ltx.Element('db:verify', { to: to,
from: from,
id: id }).
t(key);
};
exports.dialbackVerified = function(from, to, id, isValid) {
return new ltx.Element('db:verify', { to: to,
from: from,
id: id,
type: isValid ? 'valid' : 'invalid' });
};
exports.dialbackResult = function(from, to, isValid) {
return new ltx.Element('db:result', { to: to,
from: from,
type: isValid ? 'valid' : 'invalid' });
};
exports.IncomingServer = function(stream, credentials) {
var self = this;
Server.call(this, stream);
this.startParser();
this.streamId = generateId();
this.addListener('streamStart', function(streamAttrs) {
if (streamAttrs.to &&
credentials &&
credentials.hasOwnProperty(streamAttrs.to))
// TLS cert & key for this domain
self.credentials = credentials[streamAttrs.to];
// No credentials means we cannot <starttls/> on the server
// side. Unfortunately this is required for XMPP 1.0.
if (!self.credentials)
delete self.xmppVersion;
self.startStream();
});
this.addListener('rawStanza', function(stanza) {
if (stanza.is('starttls', Connection.NS_XMPP_TLS)) {
self.send(new ltx.Element('proceed', { xmlns: Connection.NS_XMPP_TLS }));
self.setSecure(self.credentials, true);
}
});
return self;
};
util.inherits(exports.IncomingServer, Server);
exports.IncomingServer.prototype.startStream = function() {
Server.prototype.startStream.call(this);
if (this.xmppVersion == '1.0') {
this.send("<stream:features>");
if (this.credentials && !this.isSecure)
this.send("<starttls xmlns='" + Connection.NS_XMPP_TLS + "'/>");
this.send("</stream:features>");
}
};
exports.OutgoingServer = function(srcDomain, destDomain, credentials) {
var self = this;
Server.call(this);
this.streamTo = destDomain;
// For outgoing, we only need our own cert & key
this.credentials = credentials;
// No credentials means we cannot <starttls/> on the server
// side. Unfortunately this is required for XMPP 1.0.
if (!this.credentials)
delete this.xmppVersion;
this.socket.addListener('secure', function() {
self.startStream();
});
this.addListener('streamStart', function(attrs) {
if (attrs.version !== "1.0")
// Don't wait for <stream:features/>
self.emit('auth', 'dialback');
});
self.addListener('rawStanza', function(stanza) {
if (stanza.is('features', Connection.NS_STREAM)) {
var mechsEl;
if ((mechsEl = stanza.getChild('mechanisms', NS_XMPP_SASL))) {
var mechs = mechsEl.getChildren('mechanism', NS_XMPP_SASL).
map(function(el) { return el.getText(); });
if (mechs.indexOf('EXTERNAL') >= 0)
self.emit('auth', 'external');
else
self.emit('auth', 'dialback');
} else {
// No SASL mechanisms
self.emit('auth', 'dialback');
}
}
});
var attempt = SRV.connect(this.socket, ['_xmpp-server._tcp',
'_jabber._tcp'],
destDomain, 5269);
attempt.addListener('connect', function() {
self.startParser();
self.startStream();
});
attempt.addListener('error', function(e) {
self.emit('error', e);
});
};
util.inherits(exports.OutgoingServer, Server);
function generateId() {
var r = new Buffer(16);
for(var i = 0; i < r.length; i++) {
r[i] = 48 + Math.floor(Math.random() * 10); // '0'..'9'
}
return r.toString();
};
|