const ENCRYPTED_MESSAGE_REGEX = /<!-- ba-e2eemsg-(\d{4}) -->(\S+?)<!-- end-msg -->/;
// "Global" object for name directory and messages
var directory = null;
var messages = {
"0": [],
"1": [],
"2": []
}
var current_tab = 0;
async function checkLogin() {
localforage.getItem("logged_in").then(function (value) {
// This code runs once the value has been loaded
// from the offline store.
if (value !== true) {
window.location.replace("/index.html");
}
}).catch(function (err) {
// This code runs if there were any errors
console.log(err);
});
}
// -----------HTML HELPERS-----------
function htmlEncode(value) {
// Create a in-memory element, set its inner text (which is automatically encoded)
// Then grab the encoded contents back out. The element never exists on the DOM.
return $("<textarea/>").text(value).html();
}
function htmlDecode(value) {
return $("<textarea/>").html(value).text();
}
// ---------------------------------
// Try to fetch name:id directory
async function loadDirectory() {
$.ajax({
url: DIRECTORY_URL,
crossDomain: true,
dataType: "json",
cache: false,
type: "GET",
success: async function (data) {
// If we were able to retrieve it, update the saved directory
let promises_to_run = [
localforage.getItem("username").then((value) => {
username = value;
}),
localforage.getItem("password").then((value) => {
password = value;
}),
localforage.getItem("grades").then((value) => {
grades = value;
})
];
await Promise.all(promises_to_run);
var gsecdata;
try {
let gsecInstance = new gsec();
await gsecInstance.login(username, password);
gsecdata = await gsecInstance.fetchTeachersDirectory().catch( (err) => {
gsecErrorHandlerUI(err);
setLoading(false);
});
} catch (err) {
gsecErrorHandlerUI(err);
setLoading(false);
}
directory = {...gsecdata, ...data };
console.log(directory);
localforage.setItem("directory", directory);
// Populate autocomplete
populateAutocomplete();
},
error: () => {
// Otherwise, try to retrieve stored directory
localforage.getItem("directory").then((stored_directory) => {
if (stored_directory === null) {
// If unable, set directory to null (so other functions know that we don't have it)
UIAlert( D("nameDirectoryNotSet"), "loadDirectory(): stored_directory === null" );
directory = null;
// Disable send button
document.getElementById("msg-send").disabled = true;
} else {
directory = stored_directory;
// Populate autocomplete
populateAutocomplete();
}
});
}
});
}
function populateAutocomplete() {
let elems = document.querySelectorAll(".autocomplete-fullname");
// če se uporablja globalna var directory, ki je shranjena kot objekt (vedno shranjen kot reference), bo pri let x=y x le pointer na object y
// in se bo spremenil z spremembo "originala". spodnja stvar itak ni preveč efficent, loop čez vseh 7000 ljudi bi lahko delal težave...
// kakšen Object.keys bi bila boljša varianta ampak raje napišem tale komentar... idk, to se mi je zdelo uporabno ampak sedaj obžalujem
// samo guglal sem "copying an object js"
let autocomplete_entries = Object.assign({}, directory);
for (let variableKey in autocomplete_entries) {
autocomplete_entries[variableKey] = null;
}
M.Autocomplete.init(elems, {
data: autocomplete_entries,
onAutocomplete: validateName,
minLength: 0
});
$(document).ready(function () {
if (window.location.hash.length > 1 && !window.location.hash.substring(1).startsWith("beziapp")) {
var hashValue = decodeURIComponent(window.location.hash.substring(1));
$("#full-name").val(hashValue);
if (hashValue in directory) {
$("#msg-send").removeAttr("disabled");
}
$("#beziapp-new-message").modal();
$("#beziapp-new-message").modal("open");
}
});
M.updateTextFields();
validateName();
}
// Function to toggle loading bar
function setLoading(state) {
if (state) {
$("#loading-bar").removeClass("hidden");
} else {
$("#loading-bar").addClass("hidden");
}
}
// Function, responsible for fetching and displaying data
async function loadMessages(force_refresh = true, messageType = 0) {
setLoading(true);
// Load required data
let promises_to_run = [
localforage.getItem("username").then((value) => {
username = value;
}),
localforage.getItem("password").then((value) => {
password = value;
}),
localforage.getItem("messages").then((value) => {
messages = value;
})
];
Promise.all(promises_to_run).then(() => {
if (messages[messageType] == null || messages[messageType].length === 0 || force_refresh) {
$.ajax({
url: API_ENDPOINT,
crossDomain: true,
data: {
"u": username,
"p": password,
"m": "fetchsporocilaseznam",
"a": messageType // Message type, see API doc for details
},
dataType: "json",
cache: false,
type: "GET",
success: (data) => {
// If data is null, the request failed
if (data === null) {
UIAlert( D("requestFailed") );
setLoading(false);
} else {
// Save messages & populate view
// console.log(data); // debug
messages[messageType.toString()] = data;
localforage.setItem("messages", messages).then((value) => {
displayData(messageType);
setLoading(false);
});
}
},
error: () => {
UIAlert( D("errorFetchingMessages") );
setLoading(false);
}
})
} else {
displayData(messageType);
setLoading(false);
}
});
}
async function loadMsg(id) {
setLoading(true);
// Load required data
let promises_to_run = [
localforage.getItem("username").then((value) => {
username = value;
}),
localforage.getItem("password").then((value) => {
password = value;
}),
];
Promise.all(promises_to_run).then(() => {
$.ajax({
url: API_ENDPOINT,
crossDomain: true,
data: {
"u": username,
"p": password,
"m": "fetchsporocilo",
"a": id.replace(/_/g, "|")
},
dataType: "json",
cache: false,
type: "GET",
success: (data) => {
// If data is null, the request failed
if (data === null) {
UIAlert( `${D("unableToReceiveTheMessage")} ${D("requestFailed")}` );
} else {
displayMessage(id, data);
}
setLoading(false);
},
error: () => {
UIAlert( `${D("unableToReceiveTheMessage")} ${D("noInternetConnection")}` );
setLoading(false);
}
})
});
}
async function deleteMsg(id) {
setLoading(true);
// Load required data
let promises_to_run = [
localforage.getItem("username").then((value) => {
username = value;
}), localforage.getItem("password").then((value) => {
password = value;
}),
];
Promise.all(promises_to_run).then(() => {
$.ajax({
url: API_ENDPOINT,
crossDomain: true,
data: {
"u": username,
"p": password,
"m": "izbrisisporocilo",
"a": id
},
dataType: "json",
cache: false,
type: "GET",
success: (data) => {
// If data is null, the request failed
if (data === null) {
UIAlert( `${D("unableToDeleteTheMessage")} ${D("requestFailed")}` );
} else {
document.getElementById("msg_box-" + id).remove();
}
setLoading(false);
},
error: () => {
UIAlert( `${D("unableToDeleteTheMessage")} ${D("noInternetConnection")}` );
setLoading(false);
}
})
});
}
function displayMessage(id, data) {
let regex_results = ENCRYPTED_MESSAGE_REGEX.exec(data["telo"]);
if (regex_results != null) {
var datatodecrypt = regex_results[2];
var randomencdivid = Math.floor(Math.random() * 9999).toString().padStart(4, "0");
var msgcontent = `
<div id='ba-msg-e2ee-form-${randomencdivid}'>
${D("thisMessageWasEncrypted")}
<input type="password" autocomplete="new-password" id="ba-msg-e2ee-password-${randomencdivid}" placeholder="${S("password")} ...">
<button
type="button"
value="Decrypt"
class="btn waves-effect waves-light"
onclick="
try {
$('#ba-msg-e2ee-content-${randomencdivid}').html(
filterXSS(
sjcl.decrypt(
$('#ba-msg-e2ee-password-${randomencdivid}').val(),
$('#ba-msg-e2ee-content-${randomencdivid}').html()
)
)
);
$('#ba-msg-e2ee-content-${randomencdivid}').show();
$('#ba-msg-e2ee-form-${randomencdivid}').hide();
} catch (err) {
alert('${D("incorrectPassword")}');
}
"
>
${S("decrypt")}
</button>
</div>
<div id="ba-msg-e2ee-content-${randomencdivid}" hidden>
${datatodecrypt}
</div>
`
$(`#msg_body-${id.replace(/\|/g, "_")}`).html(msgcontent);
} else {
$(`#msg_body-${id.replace(/\|/g, "_")}`).html(filterXSS(data["telo"]));
}
}
// Function for displaying data
function displayData(messageType) {
let div_selector = "";
switch (messageType) {
case 0:
div_selector = "#beziapp-received";
break;
case 1:
div_selector = "#beziapp-sent";
break;
case 2:
div_selector = "#beziapp-deleted";
break;
}
// $("#storage-bar").show();
$("#storage-progressbar").width(Number(Number(getNumMessages(messageType) / 120) * 100).toFixed(2) + "%");
$("#storage-stats").text(`${getNumMessages(messageType)}/120`);
let msg_list = $(div_selector);
msg_list.html("");
messages[messageType.toString()].forEach(element => {
if (!element["zadeva"].startsWith("ba-ctlmsg")) {
msg_list.append(`
<div class="col s12 m12" id="msg_box-${filterXSS(element["id"])}">
<div class="card color-card">
<div class="card-content general-text">
<span class="card-title">
${filterXSS(element["zadeva"])}
</span>
<p id="msg_body-${filterXSS(element["id"]).replace(/\|/g, "_")}">
<button
class="btn waves-effect waves-light"
onclick="loadMsg('${filterXSS(element["id"])}')"
type="submit"
>
Load message
<i class="material-icons right">move_to_inbox</i>
</button>
<p>
</div>
<div class="card-action general-text">
<a onclick="deleteMsg('${filterXSS(element["id"])}')">
<i class="material-icons">delete</i>
</a>
<a onclick="
$('#full-name').val('${filterXSS(element["posiljatelj"])}');
$('#msg-subject').val('Re: ${filterXSS(element["zadeva"])}');
M.updateTextFields();
"
data-target="beziapp-new-message"
class="modal-trigger"
>
<i class="material-icons">reply</i>
</a>
${filterXSS(element["posiljatelj"])} » ${filterXSS(element["datum"]["dan"])}. ${filterXSS(element["datum"]["mesec"])}. ${filterXSS(element["datum"]["leto"])} at ${filterXSS(element["cas"]["ura"]).padStart(2, "0")}:${filterXSS(element["cas"]["minuta"]).padStart(2, "0")}
</div>
</div>
</div>
`);
}
});
}
// -1 = cumulative
function getNumMessages(messageType = -1) {
if (messageType === -1) {
let sum = 0;
for (const [messageType, messageList] of Object.entries(messages)) {
sum += messageList.length;
}
return sum;
} else {
var what_to_return = messages[messageType].length;
if(what_to_return == null)
return 0
return what_to_return;
}
}
async function sendMessage(recipient_number, subject, body) {
setLoading(true);
let promises_to_run = [
localforage.getItem("username").then((value) => {
username = value;
}),
localforage.getItem("password").then((value) => {
password = value;
}),
];
Promise.all(promises_to_run).then(() => {
$.ajax({
url: API_ENDPOINT,
crossDomain: true,
data: {
"u": username,
"p": password,
"m": "posljisporocilo",
"a": recipient_number,
"b": subject,
"c": body
},
dataType: "json",
cache: false,
type: "POST",
success: () => {
// we CAN'T know wether the message was delievered
UIAlert(D("messageWasProbablySent"));
setLoading(false);
},
error: () => {
UIAlert(D("errorSendingMessage"), D("noInternetConnection"));
setLoading(false);
}
})
});
}
async function validateName() {
if (directory !== null) {
if ($("#full-name").val() in directory) {
$("#full-name").addClass("valid");
$("#full-name").removeClass("invalid");
$("#msg-send").removeAttr("disabled");
} else {
$("#full-name").addClass("invalid");
$("#full-name").removeClass("valid");
$("#msg-send").attr("disabled", "disabled");
}
}
}
// Setup event listeners for buttons
function setupEventListeners() {
// Button to add a photo
$("#msg-add-photo").click(() => {
let input = document.createElement("input");
input.type = "file";
input.onchange = (e) => {
// getting a hold of the file reference
let file = e.target.files[0];
// setting up the reader
let reader = new FileReader();
reader.readAsDataURL(file); // this is reading as data url
// here we tell the reader what to do when it's done reading...
reader.onload = readerEvent => {
additionalstufftoaddtomessage += `<br><img src="${readerEvent.target.result}" />`; // this is the content!
if ($("#msg-added-image").html().length > 1) {
$("#msg-added-image").append(`<img style="width: 20mm" src="${readerEvent.target.result}" />`);
} else {
$("#msg-added-image").html(`
<input
type="button"
value="${S("removeImages")}"
class="btn waves-effect waves-light"
onclick="
additionalstufftoaddtomessage = '';
$('#msg-added-image').html('');
"
/>
<br>
${D("largeImagesNote")}
<br>
${S("attachedImages")}:
<br>
<img style="width:20mm" src="${readerEvent.target.result}" />
`);
// ravno obratni narekovaji
}
UIAlert(D("imageAddedAsAnAttachment"));
}
}
input.click();
});
// Verify recipient when input loses focus
$("#full-name").on("blur", validateName);
// Setup refresh icon
$("#refresh-icon").click(() => {
loadMessages(true, current_tab);
});
// Setup checkbox handler
$("#encrypt-checkbox").change(function() {
if (this.checked) {
$("#encryption-key-input").prop("hidden", false);
} else {
$("#encryption-key-input").prop("hidden", true);
}
});
// Button to send message
$("#msg-send").click(() => {
localforage.getItem("directory").then(function (value) {
var msgcontent = $("#msg-body").val() + additionalstufftoaddtomessage;
var msgsubject = $("#msg-subject").val();
if ($("#encryption-key-input").prop("hidden") !== true) {
var randomencdivid = Math.floor(Math.random() * 9999).toString().padStart(4, "0");
var addrparts = window.location.href.split("/"); // engleski
var encrypted_message = sjcl.encrypt($("#msg-e2ee-pass-input").val(), msgcontent);
msgcontent = `
<script src="${addrparts[0]}//${addrparts[2]}/js/lib/sjcl.js"></script>
<div id="ba-msg-e2ee-form-${randomencdivid}">
This message was encrypted by BežiApp.
<input type="password" autocomplete="new-password" id="ba-msg-e2ee-password-${randomencdivid}" placeholder="Enter password ...">
<input type="button" value="Decrypt" onclick="
try {
console.log($('ba-msg-e2ee-content-${randomencdivid}').text());
$('#ba-msg-e2ee-content-${randomencdivid}').html(
sjcl.decrypt(
$('#ba-msg-e2ee-password-${randomencdivid}').val(),
$('#ba-msg-e2ee-content-${randomencdivid}').text()
)
);
$('#ba-msg-e2ee-content-${randomencdivid}').show();
$('#ba-msg-e2ee-form-${randomencdivid}').hide();
} catch(err) {
alert('${D("incorrectPassword")}');
}
">
</div>
<div id="ba-msg-e2ee-content-${randomencdivid}" hidden>
<!-- ba-e2eemsg-${msgcontent.length.toString().padStart(4, "0")} -->${encrypted_message}<!-- end-msg -->
</div>
`
}
console.log(msgcontent);
console.log(encrypted_message);
sendMessage(value[$("#full-name").val()], msgsubject, htmlEncode(msgcontent));
$("#msg-body").val("");
$("#full-name").val("");
$("#msg-subject").val("");
// $("#msg-send").prop("disabled", true);
$("#msg-send").attr("disabled", "disabled");
additionalstufftoaddtomessage = "";
$("#msg-added-image").html("");
$("#msg-e2ee-pass").hide();
}).catch(function (err) {
UIAlert( `${D("unableToReadDirectory")} ${D("messageCouldNotBeSend")}`, "45245" );
console.log(err);
});
});
}
function getUrlParameter(sParam) {
const url_params = new URLSearchParams(window.location.search);
const found_param = url_params.get(sParam);
return found_param
}
var additionalstufftoaddtomessage = "";
document.addEventListener("DOMContentLoaded", () => {
checkLogin();
// Setup modals
const modal_elems = document.querySelectorAll('.modal');
const modal_options = {
onOpenStart: () => { $("#fab-new").hide() },
onCloseEnd: () => { $("#fab-new").show() },
dismissible: false
};
M.Modal.init(modal_elems, modal_options);
loadDirectory();
setupEventListeners();
// Setup tabs
const tabs = document.querySelectorAll(".tabs");
const tab_options = {
// swipeable: true, // TODO: figure out how to fix height when it's enabled (it's good for UX to have it enabled)
onShow: (tab) => {
if ($(tab).hasClass("active")) {
switch (tab.id) {
case "beziapp-received":
current_tab = 0;
loadMessages(false, 0);
break;
case "beziapp-sent":
current_tab = 1;
loadMessages(false, 1);
break;
case "beziapp-deleted":
current_tab = 2;
loadMessages(false, 2);
break;
}
}
}
};
M.Tabs.init(tabs, tab_options);
// Setup floating action button
const fab_options = {
hoverEnabled: false,
toolbarEnabled: false
}
const fab_elem = document.querySelectorAll(".fixed-action-btn");
M.FloatingActionButton.init(fab_elem, fab_options);
var receivedmessages = null;
loadMessages(true, 0);
M.updateTextFields();
// Setup side menu
const menus = document.querySelectorAll(".side-menu");
M.Sidenav.init(menus, { edge: "right", draggable: true });
});
