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Viewing changes to src/Ubuntu/UnityWebApps/bindings/tools/backend/tools.js

  • Committer: CI Train Bot
  • Author(s): Alexandre Abreu
  • Date: 2015-03-19 14:06:48 UTC
  • mfrom: (144.1.15 hmac-tool)
  • Revision ID: ci-train-bot@canonical.com-20150319140648-bqiejete2pkzuoc3
Add tools API that exposed helpers to webaps
Approved by: PS Jenkins bot

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src/Ubuntu/UnityWebApps/bindings/tools/backend/tools.js
 
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/*
 
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 * Copyright 20145 Canonical Ltd.
 
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 *
 
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 * This file is part of unity-webapps-qml.
 
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 *
 
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 * unity-webapps-qml is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
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 * the Free Software Foundation; version 3.
 
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 *
 
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 * unity-webapps-qml is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License
 
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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 */
 
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.import Ubuntu.UnityWebApps 0.2 as UnityWebAppsBridge
 
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/**
 
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 *
 
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 * Tools API backend binding
 
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 *
 
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 */
 
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function createToolsApi(backendDelegate) {
 
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    var PLUGIN_URI = 'Ubuntu.UnityWebApps';
 
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    var VERSION = 0.2;
 
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    var toolsApiInstance = UnityWebAppsBridge.ToolsApi;
 
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    function isValidAlgorithm(algorithm) {
 
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        var algos = ["MD5", "SHA1", "SHA256", "SHA512"]
 
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        return algos.some(function(e) { return e === algorithm; })
 
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    };
 
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    function stringToCryptoAlgorithm(algorithm) {
 
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        var assoc = {
 
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            "MD5": toolsApiInstance.MD5
 
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            , "SHA1": toolsApiInstance.SHA1
 
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            , "SHA256": toolsApiInstance.SHA256
 
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            , "SHA512": toolsApiInstance.SHA512
 
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        };
 
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        return assoc[algorithm]
 
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    };
 
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    return {
 
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        getHmacHash: function(message, algorithm, key, callback) {
 
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            if ( ! isValidAlgorithm(algorithm)) {
 
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                callback({errorMsg: "Invalid algorithm",
 
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                             result: null});
 
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                return;
 
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            }
 
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            callback({errorMsg: "",
 
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                 result: toolsApiInstance.getHmacHash(
 
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                             message, stringToCryptoAlgorithm(algorithm), key)});
 
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        },
 
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        sendHttpRequest: function(url, location, request, payload, callback) {
 
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            if ( ! toolsApiInstance.areCompatibleCorsUrl(url, location)) {
 
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                console.error('sendHttpRequest: incompatible CORS request urls')
 
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                return;
 
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            }
 
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            var xmlrequest = new XMLHttpRequest();
 
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            var verb = payload && payload.length !== 0
 
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                    ? "POST" : "GET"
 
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            xmlrequest.open(verb, url, true);
 
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            xmlrequest.onreadystatechange = function() {
 
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                if (xmlrequest.readyState === XMLHttpRequest.DONE) {
 
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                    callback({
 
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                        errorMsg: xmlrequest.statusText,
 
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                        success: xmlrequest.status == 200,
 
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                        response: xmlrequest.responseText
 
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                    });
 
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                }
 
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            };
 
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            for (var header in request.headers) {
 
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                if (request.headers.hasOwnProperty(header)) {
 
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                    xmlrequest.setRequestHeader(header, request.headers[header])
 
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                }
 
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            }
 
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            xmlrequest.setRequestHeader(
 
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                "Content-Length",
 
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                String(payload.length));
 
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            xmlrequest.send(payload);
 
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        }
 
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    };
 
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}