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42 lines (38 loc) · 1.25 KB
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var tty = require("tty"),
keypress = require("keypress");
var util = {};
util.setRawMode = function(mode) {
if (process.stdin.setRawMode) {
process.stdin.setRawMode(mode);
} else {
tty.setRawMode(mode);
}
};
util.passphrase = function(prompt, callback) {
process.stderr.write(prompt);
keypress(process.stdin);
process.stdin.resume();
var passphrase = "";
process.stdin.on("keypress", function(c, key) {
if (key && (key.name == "return" || key.name == "enter")) {
process.stderr.write("\n");
process.stdin.pause();
callback(passphrase);
} else if (key && key.name == "backspace") {
if (passphrase.length > 0) {
passphrase = passphrase.substring(0, passphrase.length-1);
process.stderr.write('\x1B[D\x1B[K');
}
} else if (key && key.ctrl && key.name == "u") {
process.stderr.write(passphrase.replace(/./g, '\x1B[D'));
passphrase = "";
} else if (key && key.ctrl && key.name == "c") {
process.stdin.pause();
callback(null);
} else {
process.stderr.write("*");
passphrase += c;
}
});
};
module.exports = util;