/*
|
* Copyright 2016, Joyent, Inc. All rights reserved.
|
* Author: Alex Wilson <alex.wilson@joyent.com>
|
*
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
* of this software and associated documentation files (the "Software"), to
|
* deal in the Software without restriction, including without limitation the
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
* sell copies of the Software, and to permit persons to whom the Software is
|
* furnished to do so, subject to the following conditions:
|
*
|
* The above copyright notice and this permission notice shall be included in
|
* all copies or substantial portions of the Software.
|
*
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
* IN THE SOFTWARE.
|
*/
|
|
module.exports = {
|
getPass: getPass
|
};
|
|
const mod_tty = require('tty');
|
const mod_fs = require('fs');
|
const mod_assert = require('assert-plus');
|
|
var BACKSPACE = String.fromCharCode(127);
|
var CTRLC = '\u0003';
|
var CTRLD = '\u0004';
|
|
function getPass(opts, cb) {
|
if (typeof (opts) === 'function' && cb === undefined) {
|
cb = opts;
|
opts = {};
|
}
|
mod_assert.object(opts, 'options');
|
mod_assert.func(cb, 'callback');
|
|
mod_assert.optionalString(opts.prompt, 'options.prompt');
|
if (opts.prompt === undefined)
|
opts.prompt = 'Password';
|
|
openTTY(function (err, rfd, wfd, rtty, wtty) {
|
if (err) {
|
cb(err);
|
return;
|
}
|
|
wtty.write(opts.prompt + ':');
|
rtty.resume();
|
rtty.setRawMode(true);
|
rtty.resume();
|
rtty.setEncoding('utf8');
|
|
var pw = '';
|
rtty.on('data', onData);
|
|
function onData(data) {
|
var str = data.toString('utf8');
|
for (var i = 0; i < str.length; ++i) {
|
var ch = str[i];
|
switch (ch) {
|
case '\r':
|
case '\n':
|
case CTRLD:
|
cleanup();
|
cb(null, pw);
|
return;
|
case CTRLC:
|
cleanup();
|
cb(new Error('Aborted'));
|
return;
|
case BACKSPACE:
|
pw = pw.slice(0, pw.length - 1);
|
break;
|
default:
|
pw += ch;
|
break;
|
}
|
}
|
}
|
|
function cleanup() {
|
wtty.write('\r\n');
|
rtty.setRawMode(false);
|
rtty.pause();
|
rtty.removeListener('data', onData);
|
if (wfd !== undefined && wfd !== rfd) {
|
wtty.end();
|
mod_fs.closeSync(wfd);
|
}
|
if (rfd !== undefined) {
|
rtty.end();
|
mod_fs.closeSync(rfd);
|
}
|
}
|
});
|
}
|
|
function openTTY(cb) {
|
mod_fs.open('/dev/tty', 'r+', function (err, rttyfd) {
|
if ((err && (err.code === 'ENOENT' || err.code === 'EACCES')) ||
|
(process.version.match(/^v0[.][0-8][.]/))) {
|
cb(null, undefined, undefined, process.stdin,
|
process.stdout);
|
return;
|
}
|
var rtty = new mod_tty.ReadStream(rttyfd);
|
mod_fs.open('/dev/tty', 'w+', function (err3, wttyfd) {
|
var wtty = new mod_tty.WriteStream(wttyfd);
|
if (err3) {
|
cb(err3);
|
return;
|
}
|
cb(null, rttyfd, wttyfd, rtty, wtty);
|
});
|
});
|
}
|
