/usr/lib/nodejs/mute-stream/mute.js is in node-mute-stream 0.0.4-1.
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 | var Stream = require('stream')
module.exports = MuteStream
// var out = new MuteStream(process.stdout)
// argument auto-pipes
function MuteStream (opts) {
Stream.apply(this)
opts = opts || {}
this.writable = this.readable = true
this.muted = false
this.on('pipe', this._onpipe)
this.replace = opts.replace
// For readline-type situations
// This much at the start of a line being redrawn after a ctrl char
// is seen (such as backspace) won't be redrawn as the replacement
this._prompt = opts.prompt || null
this._hadControl = false
}
MuteStream.prototype = Object.create(Stream.prototype)
Object.defineProperty(MuteStream.prototype, 'constructor', {
value: MuteStream,
enumerable: false
})
MuteStream.prototype.mute = function () {
this.muted = true
}
MuteStream.prototype.unmute = function () {
this.muted = false
}
Object.defineProperty(MuteStream.prototype, '_onpipe', {
value: onPipe,
enumerable: false,
writable: true,
configurable: true
})
function onPipe (src) {
this._src = src
}
Object.defineProperty(MuteStream.prototype, 'isTTY', {
get: getIsTTY,
set: setIsTTY,
enumerable: true,
configurable: true
})
function getIsTTY () {
return( (this._dest) ? this._dest.isTTY
: (this._src) ? this._src.isTTY
: false
)
}
// basically just get replace the getter/setter with a regular value
function setIsTTY (isTTY) {
Object.defineProperty(this, 'isTTY', {
value: isTTY,
enumerable: true,
writable: true,
configurable: true
})
}
Object.defineProperty(MuteStream.prototype, 'rows', {
get: function () {
return( this._dest ? this._dest.rows
: this._src ? this._src.rows
: undefined )
}, enumerable: true, configurable: true })
Object.defineProperty(MuteStream.prototype, 'columns', {
get: function () {
return( this._dest ? this._dest.columns
: this._src ? this._src.columns
: undefined )
}, enumerable: true, configurable: true })
MuteStream.prototype.pipe = function (dest) {
this._dest = dest
return Stream.prototype.pipe.call(this, dest)
}
MuteStream.prototype.pause = function () {
if (this._src) return this._src.pause()
}
MuteStream.prototype.resume = function () {
if (this._src) return this._src.resume()
}
MuteStream.prototype.write = function (c) {
if (this.muted) {
if (!this.replace) return true
if (c.match(/^\u001b/)) {
this._hadControl = true
return this.emit('data', c)
} else {
if (this._prompt && this._hadControl &&
c.indexOf(this._prompt) === 0) {
this._hadControl = false
this.emit('data', this._prompt)
c = c.substr(this._prompt.length)
}
c = c.toString().replace(/./g, this.replace)
}
}
this.emit('data', c)
}
MuteStream.prototype.end = function (c) {
if (this.muted) {
if (c && this.replace) {
c = c.toString().replace(/./g, this.replace)
} else {
c = null
}
}
if (c) this.emit('data', c)
this.emit('end')
}
function proxy (fn) { return function () {
var d = this._dest
var s = this._src
if (d && d[fn]) d[fn].apply(d, arguments)
if (s && s[fn]) s[fn].apply(s, arguments)
}}
MuteStream.prototype.destroy = proxy('destroy')
MuteStream.prototype.destroySoon = proxy('destroySoon')
MuteStream.prototype.close = proxy('close')
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