telebit.js/lib/cli-common.js

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'use strict';
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module.exports.debug = (-1 !== (process.env.NODE_DEBUG||'').split(/\s+/g).indexOf('telebit'));
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var common = module.exports;
var path = require('path');
var url = require('url');
var fs = require('fs');
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var mkdirp = require('mkdirp');
var os = require('os');
var homedir = os.homedir();
var urequest = require('@root/request');
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common._NOTIFICATIONS = {
'newsletter': [ 'newsletter', 'communityMember' ]
, 'important': [ 'communityMember' ]
};
common.CONFIG_KEYS = [
'newsletter'
, 'communityMember'
, 'telemetry'
, 'sshAuto'
, 'email'
, 'agreeTos'
, 'relay'
, 'token'
, 'pretoken'
, 'secret'
];
//, '_servernames' // list instead of object
//, '_ports' // list instead of object
//, '_otp' // otp should not be saved
//, '_token' // temporary token
common.getPort = function (config, cb) {
var portfile = path.resolve(config.sock || common.DEFAULT_SOCK_PATH, '..', 'telebit.port');
if (cb) {
return fs.readFile(portfile, 'utf8', function (err, text) {
cb(err, parseInt((text||'').trim(), 10) || null);
});
} else {
try {
return parseInt(fs.readFileSync(portfile, 'utf8').trim(), 10) || null;
} catch(e) {
return null;
}
}
};
common.setPort = function (config, num, cb) {
var portfile = path.resolve(config.sock || common.DEFAULT_SOCK_PATH, '..', 'telebit.port');
var numstr = (num || '').toString();
if (cb) {
return fs.writeFile(portfile, numstr, 'utf8', function (err) {
cb(err);
});
} else {
try {
return fs.writeFileSync(portfile, numstr, 'utf8');
} catch(e) {
return null;
}
}
};
common.removePort = function (config, cb) {
var portfile = path.resolve(config.sock || common.DEFAULT_SOCK_PATH, '..', 'telebit.port');
if (cb) {
return fs.unlink(portfile, function (err, text) {
cb(err, (text||'').trim());
});
} else {
try {
return fs.unlinkSync(portfile);
} catch(e) {
return null;
}
}
};
common.pipename = function (config) {
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var _ipc = {
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path: (config.sock || common.DEFAULT_SOCK_PATH)
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, comment: (/^win/i.test(os.platform()) ? 'windows pipe' : 'unix socket')
, type: (/^win/i.test(os.platform()) ? 'pipe' : 'socket')
};
if ('pipe' === _ipc.type) {
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// https://docs.microsoft.com/en-us/windows/desktop/ipc/pipe-names
// Allows all characters accept backslash as part of the name
_ipc.path = '\\\\.\\pipe\\' + _ipc.path.replace(/\\/g, '/');
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}
return _ipc;
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};
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common.DEFAULT_SOCK_PATH = path.join(homedir, '.local/share/telebit/var/run', 'telebit.sock');
common.DEFAULT_CONFIG_PATH = path.join(homedir, '.config/telebit', 'telebitd.yml');
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common.parseUrl = function (hostname) {
var location = url.parse(hostname);
if (!location.protocol || /\./.test(location.protocol)) {
hostname = 'https://' + hostname;
location = url.parse(hostname);
}
hostname = location.hostname + (location.port ? ':' + location.port : '');
hostname = location.protocol.replace(/https?/, 'https') + '//' + hostname + location.pathname;
return hostname;
};
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common.parseHostname = function (hostname) {
var location = url.parse(hostname);
if (!location.protocol || /\./.test(location.protocol)) {
hostname = 'https://' + hostname;
location = url.parse(hostname);
}
//hostname = location.hostname + (location.port ? ':' + location.port : '');
//hostname = location.protocol.replace(/https?/, 'https') + '//' + hostname + location.pathname;
return location.hostname;
};
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common.apiDirectory = '_apis/telebit.cloud/index.json';
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common.otp = function getOtp() {
return Math.round(Math.random() * 9999).toString().padStart(4, '0');
};
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common.signToken = function (state) {
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var JWT = require('./jwt.js');
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var tokenData = {
domains: Object.keys(state.config.servernames || {}).filter(function (name) {
return /\./.test(name);
})
, ports: Object.keys(state.config.ports || {}).filter(function (port) {
port = parseInt(port, 10);
return port > 0 && port <= 65535;
})
, aud: state._relayUrl
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, iss: Math.round(Date.now() / 1000)
};
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return JWT.sign(tokenData, state.config.secret);
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};
common.api = {};
common.api.directory = function (state, next) {
state._relayUrl = common.parseUrl(state.relay);
urequest({ url: state._relayUrl + common.apiDirectory, json: true }, function (err, resp, dir) {
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if (!dir) { dir = { api_host: ':hostname', tunnel: { method: "wss", pathname: "" } }; }
state._apiDirectory = dir;
next(err, dir);
});
};
common.api._parseWss = function (state, dir) {
if (!dir || !dir.api_host) {
dir = { api_host: ':hostname', tunnel: { method: "wss", pathname: "" } };
}
state._relayHostname = common.parseHostname(state.relay);
return dir.tunnel.method + '://' + dir.api_host.replace(/:hostname/g, state._relayHostname) + dir.tunnel.pathname;
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};
common.api.wss = function (state, cb) {
common.api.directory(state, function (err, dir) {
cb(err, common.api._parseWss(state, dir));
});
};
common.api.token = function (state, handlers) {
common.api.directory(state, function (err, dir) {
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// directory, requested, connect, tunnelUrl, offer, granted, end
function afterDir() {
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if (common.debug) { console.log('[debug] after dir'); }
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state.wss = common.api._parseWss(state, dir);
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handlers.tunnelUrl(state.wss, function () {
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if (common.debug) { console.log('[debug] after tunnelUrl'); }
if (state.config.secret /* && !state.config.token */) {
state.config._token = common.signToken(state);
}
state.token = state.token || state.config.token || state.config._token;
if (state.token) {
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if (common.debug) { console.log('[debug] token via token or secret'); }
// { token, pretoken }
handlers.connect(state.token, function () {
handlers.end(null, function () {});
});
return;
}
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// backwards compat (TODO remove)
if (err || !dir || !dir.pair_request) {
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if (common.debug) { console.log('[debug] no dir, connect'); }
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handlers.error(new Error("No token found or generated, and no pair_request api found."));
return;
}
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// TODO sign token with own private key, including public key and thumbprint
// (much like ACME JOSE account)
var otp = state.config._otp; // common.otp();
var authReq = {
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subject: state.config.email
, subject_scheme: 'mailto'
// TODO create domains list earlier
, scope: (state.config._servernames || Object.keys(state.config.servernames || {}))
.concat(state.config._ports || Object.keys(state.config.ports || {})).join(',')
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, otp: otp
, hostname: os.hostname()
// Used for User-Agent
, os_type: os.type()
, os_platform: os.platform()
, os_release: os.release()
, os_arch: os.arch()
};
var pairRequestUrl = url.resolve('https://' + dir.api_host.replace(/:hostname/g, state._relayHostname), dir.pair_request.pathname);
var req = {
url: pairRequestUrl
, method: dir.pair_request.method
, json: authReq
};
var firstReq = true;
var firstReady = true;
function gotoNext(req) {
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if (common.debug) { console.log('[debug] gotoNext called'); }
if (common.debug) { console.log(req); }
urequest(req, function (err, resp, body) {
if (err) {
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if (common.debug) { console.log('[debug] gotoNext error'); }
err._request = req;
err._hint = '[telebitd.js] pair request';
handlers.error(err, function () {});
return;
}
function checkLocation() {
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if (common.debug) { console.log('[debug] checkLocation'); }
if (common.debug) { console.log(body); }
// pending, try again
if ('pending' === body.status && resp.headers.location) {
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if (common.debug) { console.log('[debug] pending'); }
setTimeout(gotoNext, 2 * 1000, { url: resp.headers.location, json: true });
return;
}
if ('ready' === body.status) {
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if (common.debug) { console.log('[debug] ready'); }
if (firstReady) {
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if (common.debug) { console.log('[debug] first ready'); }
firstReady = false;
state.token = body.access_token;
state.config.token = state.token;
handlers.offer(body.access_token, function () {
/*ignore*/
});
}
setTimeout(gotoNext, 2 * 1000, req);
return;
}
if ('complete' === body.status) {
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if (common.debug) { console.log('[debug] complete'); }
handlers.granted(null, function () {
handlers.end(null, function () {});
});
return;
}
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if (common.debug) { console.log('[debug] bad status'); }
var err = new Error("Bad State:" + body.status);
err._request = req;
handlers.error(err, function () {});
}
if (firstReq) {
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if (common.debug) { console.log('[debug] first req'); }
handlers.requested(authReq, function () {
handlers.connect(body.access_token || body.jwt, function () {
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var err;
if (!resp.headers.location) {
err = new Error("bad authentication request response");
err._resp = resp.toJSON();
handlers.error(err, function () {});
return;
}
setTimeout(gotoNext, 2 * 1000, { url: resp.headers.location, json: true });
});
});
firstReq = false;
return;
} else {
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if (common.debug) { console.log('[debug] other req'); }
checkLocation();
}
});
}
gotoNext(req);
});
}
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if (dir && dir.api_host) {
handlers.directory(dir, afterDir);
} else {
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// backwards compat
dir = { api_host: ':hostname', tunnel: { method: "wss", pathname: "" } };
afterDir();
}
});
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};
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common._init = function (rootpath, confpath) {
try {
mkdirp.sync(path.join(rootpath, 'var', 'log'));
mkdirp.sync(path.join(rootpath, 'var', 'run'));
mkdirp.sync(path.join(confpath));
} catch(e) {
console.error(e);
}
};