143 lines
4.4 KiB
JavaScript
143 lines
4.4 KiB
JavaScript
/************************************************
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*** Utilities to store data in local storage ***
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************************************************/
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var storage = {};
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storage.putEncrypted = function(key, value) {
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//TODO
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localStorage.setItem("e" + key, value);
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}
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storage.getEncrypted = function(key, defaultValue) {
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//TODO
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var value = localStorage.getItem("e" + key);
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if (value === null)
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return defaultValue;
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return value;
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}
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storage.putUnencrypted = function(key, value) {
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localStorage.setItem("u" + key, value);
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}
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storage.getUnencrypted = function(key, defaultValue) {
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var value = localStorage.getItem("u" + key);
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if (value === null)
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return defaultValue;
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return value;
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}
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/************************************************
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*** Utilities to communicate with the server ***
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************************************************/
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var URL_BASE = "http://textsecure-test.herokuapp.com";
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var URL_CALLS = {};
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URL_CALLS['devices'] = "/v1/devices";
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URL_CALLS['keys'] = "/v1/keys";
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URL_CALLS['push'] = "/v1/messagesocket";
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/**
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* REQUIRED PARAMS:
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* call: URL_CALLS entry
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* httpType: POST/GET/PUT/etc
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* success_callback: function(response object) called on success
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* error_callback: function(http status code = -1 or != 200) called on failure
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* OPTIONAL PARAMS:
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* urlParameters: crap appended to the url (probably including a leading /)
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* user: user name to be sent in a basic auth header
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* password: password to be sent in a basic auth header
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* jsonData: JSON data sent in the request body
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*/
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function doAjax(param) {
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if (param.urlParameters === undefined)
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param.urlParameters = "";
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$.ajax(URL_BASE + URL_CALLS[param.call] + param.urlParameters, {
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type: param.httpType,
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data: param.jsonData,
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beforeSend: function(xhr) {
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if (param.user !== undefined && param.password !== undefined)
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xhr.setRequestHeader("Authorization", "Basic " + btoa(param.user + ":" + param.password));
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},
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success: function(response, textStatus, jqXHR) {
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param.success_callback(response);
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},
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error: function(jqXHR, textStatus, errorThrown) {
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var code = jqXHR.status;
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if (code > 999 || code < 100)
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code = -1;
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param.error_callback(code);
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},
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cache: false
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});
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}
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function subscribeToPush(user, password, message_callback) {
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var request = { url: URL_BASE + URL_CALLS['push'],
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contentType: 'application/json',
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transport: 'websocket',
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fallbackTransport: 'long-polling',
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logLevel: 'debug', //TODO
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headers: {'Authorization: Basic ' + btoa(user + ":" + password)},
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onOpen = function(response) {
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console.log('Connected to server using ' + response.transport);
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},
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onMessage = function(response) {
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try {
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var message = JSON.parse(response.responseBody);
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} catch (e) {
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console.log('Error parsing server JSON message: ' + response.responseBody);
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return;
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}
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console.log('Received server message' + message); //TODO
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message_callback(message);
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},
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onError = function(response) {
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console.log('Server is down :(');
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//TODO: GUI
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}};
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$.atmosphere.subscribe(request);
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}
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/*******************************************
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*** Utilities to manage keys/randomness ***
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*******************************************/
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function getRandomBytes(size) {
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//TODO: Better random (https://www.grc.com/r&d/js.htm?)
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try {
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var array = new Uint8Array(size);
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window.crypto.getRandomValues(array);
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return array;
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} catch (err) {
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//TODO: ummm...wat?
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}
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}
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function getNewPubKey(keyName) {
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//TODO
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var pubKey = "BRTJzsHPUWRRBxyo5MoaBRidMk2fwDlfqvU91b6pzbED";
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var privKey = "";
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storage.putEncrypted("pubKey" + keyName, pubKey);
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storage.putEncrypted("privKey" + keyName, privKey);
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return pubKey;
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}
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function getExistingPubKey(keyName) {
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return storage.getEncrypted("pubKey" + keyName);
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}
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function generateKeys() {
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var identityKey = getExistingPubKey("identityKey");
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if (identityKey === undefined)
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identityKey = getNewPubKey("identityKey");
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var keyGroupId = storage.getEncrypted("lastKeyGroupId", -1) + 1;
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storage.putEncrypted("lastKeyGroupId", keyGroupId);
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var keys = {};
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keys.keys = [];
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for (var i = 0; i < 100; i++)
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keys.keys[i] = {keyId: i, publicKey: getNewPubKey("key" + keyGroupId + i), identityKey: identityKey};
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// 0xFFFFFF == 16777215
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keys.lastResortKey = {keyId: 16777215, publicKey: getNewPubKey("lastResortKey" + keyGroupId), identityKey: identityKey};
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return keys;
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}
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