Sharepoint 2013: from app to host

E ora Sharepoint 2013, accediamo al nostro sharepoint host a partire da un app su office 365

var hostweburl;

var appweburl;

 

function sharePointReady() {

    // retrieve passed app web/host web URLs..

    hostweburl = decodeURIComponent($.getUrlVar("SPHostUrl"));

    appweburl = decodeURIComponent($.getUrlVar("SPAppWebUrl"));

 

    loadDependentScripts();

}

 

function loadDependentScripts() {

    var scriptbase = hostweburl + "/_layouts/15/";

 

    // Load the js files and continue to the successHandler

    $.getScript(scriptbase + "SP.Runtime.js",

        function () {

            $.getScript(scriptbase + "SP.js",

                function () { $.getScript(scriptbase + "SP.RequestExecutor.js", getAllHostWebPropsUsingREST); }

                );

        }

    );

}

 

function getAllHostWebPropsUsingREST() {

    var executor;

 

    // although we're fetching data from the host web, SP.RequestExecutor gets initialized with the app web URL..

    executor = new SP.RequestExecutor(appweburl);

    executor.executeAsync(

        {

            url:

                appweburl +

                "/_api/SP.AppContextSite(@target)/web/?@target='" + hostweburl + "'",

            method: "GET",

            headers: { "Accept": "application/json; odata=verbose" },

            success: onGetAllHostWebPropsUsingRESTSuccess,

            error: onGetAllHostWebPropsUsingRESTFail

        }

    );

}

 

function onGetAllHostWebPropsUsingRESTSuccess(data) {

    var jsonObject = JSON.parse(data.body);

    // note that here our jsonObject.d object (representing the web) has ALL properties because 

    // we did not select specific ones in our REST URL. However, we're just displaying the web title here..

    $('#hostWebTitle').text(jsonObject.d.Title);

}

 

function onGetAllHostWebPropsUsingRESTFail(data, errorCode, errorMessage) {

    alert('Failed to get host site. Error:' + errorMessage);

}

 

// jQuery plugin for fetching querystring parameters..

jQuery.extend({

    getUrlVars: function () {

        var vars = [], hash;

        var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');

        for (var i = 0; i < hashes.length; i++) {

            hash = hashes[i].split('=');

            vars.push(hash[0]);

            vars[hash[0]] = hash[1];

        }

        return vars;

    },

    getUrlVar: function (name) {

        return jQuery.getUrlVars()[name];

    }

});