Cable-Desktop/libtextsecure/helpers.js
lilia 3e0bce2b21 Move, rename, and simplify toArrayBuffer helper
This function is only ever used to convert groupIds from strings to
array buffers in sendmessage.

// FREEBIE
2016-03-13 04:56:28 -07:00

77 rivejä
2,3 KiB
JavaScript

/*
* vim: ts=4:sw=4:expandtab
*/
window.textsecure = window.textsecure || {};
/*********************************
*** Type conversion utilities ***
*********************************/
// Strings/arrays
//TODO: Throw all this shit in favor of consistent types
//TODO: Namespace
var StaticByteBufferProto = new dcodeIO.ByteBuffer().__proto__;
var StaticArrayBufferProto = new ArrayBuffer().__proto__;
var StaticUint8ArrayProto = new Uint8Array().__proto__;
function getString(thing) {
if (thing === Object(thing)) {
if (thing.__proto__ == StaticUint8ArrayProto)
return String.fromCharCode.apply(null, thing);
if (thing.__proto__ == StaticArrayBufferProto)
return getString(new Uint8Array(thing));
if (thing.__proto__ == StaticByteBufferProto)
return thing.toString("binary");
}
return thing;
}
function getStringable(thing) {
return (typeof thing == "string" || typeof thing == "number" || typeof thing == "boolean" ||
(thing === Object(thing) &&
(thing.__proto__ == StaticArrayBufferProto ||
thing.__proto__ == StaticUint8ArrayProto ||
thing.__proto__ == StaticByteBufferProto)));
}
// Number formatting utils
window.textsecure.utils = function() {
var self = {};
self.unencodeNumber = function(number) {
return number.split(".");
};
self.isNumberSane = function(number) {
return number[0] == "+" &&
/^[0-9]+$/.test(number.substring(1));
}
/**************************
*** JSON'ing Utilities ***
**************************/
function ensureStringed(thing) {
if (getStringable(thing))
return getString(thing);
else if (thing instanceof Array) {
var res = [];
for (var i = 0; i < thing.length; i++)
res[i] = ensureStringed(thing[i]);
return res;
} else if (thing === Object(thing)) {
var res = {};
for (var key in thing)
res[key] = ensureStringed(thing[key]);
return res;
} else if (thing === null) {
return null;
}
throw new Error("unsure of how to jsonify object of type " + typeof thing);
}
self.jsonThing = function(thing) {
return JSON.stringify(ensureStringed(thing));
}
return self;
}();