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Update Helpers.gs
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Updating PR for changes made in v5.8 release.
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@Lonestarjeepin
Lonestarjeepin authored Dec 15, 2023
1 parent 021a9bb commit 1c9c838
Showing 1 changed file with 157 additions and 44 deletions.
201 changes: 157 additions & 44 deletions Helpers.gs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,54 @@
/**
* Formats the date and time according to the format specified in the configuration.
*
* @param {string} date The date to be formatted.
* @return {string} The formatted date string.
*/
function formatDate(date) {
const year = date.slice(0,4);
const month = date.slice(5,7);
const day = date.slice(8,10);
let formattedDate;

if (dateFormat == "YYYY/MM/DD") {
formattedDate = year + "/" + month + "/" + day
}
else if (dateFormat == "DD/MM/YYYY") {
formattedDate = day + "/" + month + "/" + year
}
else if (dateFormat == "MM/DD/YYYY") {
formattedDate = month + "/" + day + "/" + year
}
else if (dateFormat == "YYYY-MM-DD") {
formattedDate = year + "-" + month + "-" + day
}
else if (dateFormat == "DD-MM-YYYY") {
formattedDate = day + "-" + month + "-" + year
}
else if (dateFormat == "MM-DD-YYYY") {
formattedDate = month + "-" + day + "-" + year
}
else if (dateFormat == "YYYY.MM.DD") {
formattedDate = year + "." + month + "." + day
}
else if (dateFormat == "DD.MM.YYYY") {
formattedDate = day + "." + month + "." + year
}
else if (dateFormat == "MM.DD.YYYY") {
formattedDate = month + "." + day + "." + year
}

if (date.length < 11) {
return formattedDate
}

const time = date.slice(11,16)
const timeZone = date.slice(19)

return formattedDate + " at " + time + " (UTC" + (timeZone == "Z" ? "": timeZone) + ")"
}


/**
* Takes an intended frequency in minutes and adjusts it to be the closest
* acceptable value to use Google "everyMinutes" trigger setting (i.e. one of
Expand Down Expand Up @@ -81,26 +132,39 @@ function fetchSourceCalendars(sourceCalendarURLs){
for (var source of sourceCalendarURLs){
var url = source[0].replace("webcal://", "https://");
var colorId = source[1];

callWithBackoff(function() {
var urlResponse = UrlFetchApp.fetch(url, { 'validateHttpsCertificates' : false, 'muteHttpExceptions' : true });
if (urlResponse.getResponseCode() == 200){
var urlContent = RegExp("(BEGIN:VCALENDAR.*?END:VCALENDAR)", "s").exec(urlResponse.getContentText());
if(urlContent == null){
Logger.log("[ERROR] Incorrect ics/ical URL: " + url);
return;
}
else{
result.push([urlContent[0], colorId]);
return;
var icsContent = urlResponse.getContentText()
const icsRegex = RegExp("(BEGIN:VCALENDAR.*?END:VCALENDAR)", "s")
var urlContent = icsRegex.exec(icsContent);
if (urlContent == null){
// Microsoft Outlook has a bug that sometimes results in incorrectly formatted ics files. This tries to fix that problem.
// Add END:VEVENT for every BEGIN:VEVENT that's missing it
const veventRegex = /BEGIN:VEVENT(?:(?!END:VEVENT).)*?(?=.BEGIN|.END:VCALENDAR|$)/sg;
icsContent = icsContent.replace(veventRegex, (match) => match + "\nEND:VEVENT");

// Add END:VCALENDAR if missing
if (!icsContent.endsWith("END:VCALENDAR")){
icsContent += "\nEND:VCALENDAR";
}
urlContent = icsRegex.exec(icsContent)
if (urlContent == null){
Logger.log("[ERROR] Incorrect ics/ical URL: " + url)
return
}
Logger.log("[WARNING] Microsoft is incorrectly formatting ics/ical at: " + url)
}
result.push([urlContent[0], colorId]);
return;
}
else{ //Throw here to make callWithBackoff run again
throw "Error: Encountered HTTP error " + urlResponse.getResponseCode() + " when accessing " + url;
throw "Error: Encountered HTTP error " + urlResponse.getResponseCode() + " when accessing " + url;
}
}, defaultMaxRetries);
}

return result;
}

Expand Down Expand Up @@ -178,7 +242,7 @@ function parseResponses(responses){
});
}

//No need to process calcelled events as they will be added to gcal's trash anyway
//No need to process cancelled events as they will be added to gcal's trash anyway
result = result.filter(function(event){
try{
return (event.getFirstPropertyValue('status').toString().toLowerCase() != "cancelled");
Expand All @@ -192,10 +256,21 @@ function parseResponses(responses){
event.updatePropertyWithValue('uid', Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, event.toString()).toString());
}
if(event.hasProperty('recurrence-id')){
var recID = new ICAL.Time.fromString(event.getFirstPropertyValue('recurrence-id').toString(), event.getFirstProperty('recurrence-id'));
var recUTC = recID.convertToZone(ICAL.TimezoneService.get('UTC')).toString();

icsEventsIds.push(event.getFirstPropertyValue('uid').toString() + "_" + recUTC);
let recID = new ICAL.Time.fromString(event.getFirstPropertyValue('recurrence-id').toString(), event.getFirstProperty('recurrence-id'));
if (event.getFirstProperty('recurrence-id').getParameter('tzid')){
let recUTCOffset = 0;
let tz = event.getFirstProperty('recurrence-id').getParameter('tzid').toString();
if (tz in tzidreplace){
tz = tzidreplace[tz];
}
let jsTime = new Date();
let utcTime = new Date(Utilities.formatDate(jsTime, "Etc/GMT", "HH:mm:ss MM/dd/yyyy"));
let tgtTime = new Date(Utilities.formatDate(jsTime, tz, "HH:mm:ss MM/dd/yyyy"));
recUTCOffset = (tgtTime - utcTime)/-1000;
recID = recID.adjust(0,0,0,recUTCOffset).toString() + "Z";
event.updatePropertyWithValue('recurrence-id', recID);
}
icsEventsIds.push(event.getFirstPropertyValue('uid').toString() + "_" + recID);
}
else{
icsEventsIds.push(event.getFirstPropertyValue('uid').toString());
Expand All @@ -211,7 +286,7 @@ function parseResponses(responses){
* @param {ICAL.Component} event - The event to process
* @param {string} calendarTz - The timezone of the target calendar
*/
function processEvent(event, calendarTz, targetCalendarId, sourceCalendarName){
function processEvent(event, calendarTz, targetCalendarId, sourceCalendarName){
//------------------------ Create the event object ------------------------
var newEvent = createEvent(event, calendarTz, sourceCalendarName);
if (newEvent == null)
Expand All @@ -231,24 +306,24 @@ function processEvent(event, calendarTz, targetCalendarId, sourceCalendarName){
//------------------------ Send event object to gcal ------------------------
if (needsUpdate){
if (modifyExistingEvents){
oldEvent = calendarEvents[index]
Logger.log("Updating existing event " + newEvent.extendedProperties.private["id"]);
newEvent = callWithBackoff(function(){
return Calendar.Events.update(newEvent, targetCalendarId, calendarEvents[index].id);
}, defaultMaxRetries);
if (newEvent != null && emailSummary){
modifiedEvents.push([[newEvent.summary, newEvent.start.date||newEvent.start.dateTime], targetCalendarName]);
modifiedEvents.push([[oldEvent.summary, newEvent.summary, oldEvent.start.date||oldEvent.start.dateTime, newEvent.start.date||newEvent.start.dateTime, oldEvent.end.date||oldEvent.end.dateTime, newEvent.end.date||newEvent.end.dateTime, oldEvent.location, newEvent.location, oldEvent.description, newEvent.description], targetCalendarName]);
}
}
}
else{
if (addEventsToCalendar){
Logger.log("Adding new event " + newEvent.extendedProperties.private["id"]);

newEvent = callWithBackoff(function(){
return Calendar.Events.insert(newEvent, targetCalendarId);
}, defaultMaxRetries);
if (newEvent != null && emailSummary){
addedEvents.push([[newEvent.summary, newEvent.start.date||newEvent.start.dateTime], targetCalendarName]);
addedEvents.push([[newEvent.summary, newEvent.start.date||newEvent.start.dateTime, newEvent.end.date||newEvent.end.dateTime, newEvent.location, newEvent.description], targetCalendarName]);
}
}
}
Expand Down Expand Up @@ -382,10 +457,8 @@ function createEvent(event, calendarTz, sourceCalendarName){
}

if (addCalToTitle && event.hasProperty('parentCal')){
var calName = event.getFirstPropertyValue('parentCal');
newEvent.summary = "(" + calName + ") " + newEvent.summary;
newEvent.summary = newEvent.summary + " (" + sourceCalendarName + ")";
}

if (event.hasProperty('description'))
newEvent.description = icalEvent.description;

Expand Down Expand Up @@ -473,13 +546,17 @@ function createEvent(event, calendarTz, sourceCalendarName){
newEvent.extendedProperties = { private: { MD5 : digest, fromGAS : sourceCalendarName, id : icalEvent.uid } };

if (event.hasProperty('recurrence-id')){
var recID = new ICAL.Time.fromString(event.getFirstPropertyValue('recurrence-id').toString(), event.getFirstProperty('recurrence-id'));
newEvent.recurringEventId = recID.convertToZone(ICAL.TimezoneService.get('UTC')).toString();
newEvent.recurringEventId = event.getFirstPropertyValue('recurrence-id').toString();
newEvent.extendedProperties.private['rec-id'] = newEvent.extendedProperties.private['id'] + "_" + newEvent.recurringEventId;
}

if (event.hasProperty('color')){
newEvent.colorId = event.getFirstPropertyValue('color').toString();
let colorID = event.getFirstPropertyValue('color').toString();
if (Object.keys(CalendarApp.EventColor).includes(colorID)){
newEvent.colorId = CalendarApp.EventColor[colorID];
}else if(Object.values(CalendarApp.EventColor).includes(colorID)){
newEvent.colorId = colorID;
}; //else unsupported value
}

return newEvent;
Expand Down Expand Up @@ -538,10 +615,19 @@ function checkSkipEvent(event, icalEvent){

var exDates = event.getAllProperties('exdate');
exDates.forEach(function(e){
var ex = new ICAL.Time.fromString(e.getFirstValue().toString());
if (ex < newStartDate){
var values = e.getValues();
values = values.filter(function(value){
return (new ICAL.Time.fromString(value.toString()) > newStartDate);
});
if (values.length == 0){
event.removeProperty(e);
}
else if(values.length == 1){
e.setValue(values[0]);
}
else if(values.length > 1){
e.setValues(values);
}
});

var rdates = event.getAllProperties('rdate');
Expand Down Expand Up @@ -604,7 +690,7 @@ function checkSkipEvent(event, icalEvent){
*
* @param {Calendar.Event} recEvent - The event instance to process
*/
function processEventInstance(recEvent, sourceCalendarName){
function processEventInstance(recEvent){
Logger.log("ID: " + recEvent.extendedProperties.private["id"] + " | Date: "+ recEvent.recurringEventId);

var eventInstanceToPatch = callWithBackoff(function(){
Expand Down Expand Up @@ -635,16 +721,20 @@ function processEventInstance(recEvent, sourceCalendarName){
}

if (eventInstanceToPatch !== null && eventInstanceToPatch.length == 1){
Logger.log("Updating existing event instance");
callWithBackoff(function(){
Calendar.Events.update(recEvent, targetCalendarId, eventInstanceToPatch[0].id);
}, defaultMaxRetries);
if (modifyExistingEvents){
Logger.log("Updating existing event instance");
callWithBackoff(function(){
Calendar.Events.update(recEvent, targetCalendarId, eventInstanceToPatch[0].id);
}, defaultMaxRetries);
}
}
else{
Logger.log("No Instance matched, adding as new event!");
callWithBackoff(function(){
Calendar.Events.insert(recEvent, targetCalendarId);
}, defaultMaxRetries);
if (addEventsToCalendar){
Logger.log("No Instance matched, adding as new event!");
callWithBackoff(function(){
Calendar.Events.insert(recEvent, targetCalendarId);
}, defaultMaxRetries);
}
}
}

Expand Down Expand Up @@ -672,7 +762,7 @@ function processEventCleanup(sourceURL){
}, defaultMaxRetries);

if (emailSummary){
removedEvents.push([[calendarEvents[i].summary, calendarEvents[i].start.date||calendarEvents[i].start.dateTime], targetCalendarName]);
removedEvents.push([[calendarEvents[i].summary, calendarEvents[i].start.date||calendarEvents[i].start.dateTime, calendarEvents[i].end.date||calendarEvents[i].end.dateTime, calendarEvents[i].location, calendarEvents[i].description], targetCalendarName]);
}
}
}
Expand Down Expand Up @@ -890,7 +980,7 @@ function sendSummary() {
var subject;
var body;

var subject = `GAS-ICS-Sync Execution Summary: ${addedEvents.length} new, ${modifiedEvents.length} modified, ${removedEvents.length} deleted`;
var subject = `${customEmailSubject ? customEmailSubject : "GAS-ICS-Sync Execution Summary"}: ${addedEvents.length} new, ${modifiedEvents.length} modified, ${removedEvents.length} deleted`;
addedEvents = condenseCalendarMap(addedEvents);
modifiedEvents = condenseCalendarMap(modifiedEvents);
removedEvents = condenseCalendarMap(removedEvents);
Expand All @@ -899,23 +989,46 @@ function sendSummary() {
for (var tgtCal of addedEvents){
body += `<br/>${tgtCal[0]}: ${tgtCal[1].length} added events<br/><ul>`;
for (var addedEvent of tgtCal[1]){
body += "<li>" + addedEvent[0][0] + " at " + addedEvent[0][1] + "</li>";
body += "<li>"
+ "Name: " + addedEvent[0][0] + "<br/>"
+ "Start: " + formatDate(addedEvent[0][1]) + "<br/>"
+ "End: " + formatDate(addedEvent[0][2]) + "<br/>"
+ (addedEvent[0][3] ? ("Location: " + addedEvent[0][3] + "<br/>") : "")
+ (addedEvent[0][4] ? ("Description: " + addedEvent[0][4] + "<br/>") : "")
+ "</li>";
}
body += "</ul>";
}

for (var tgtCal of modifiedEvents){
body += `<br/>${tgtCal[0]}: ${tgtCal[1].length} modified events<br/><ul>`;
for (var modifiedEvent of tgtCal[1]){
body += "<li>" + modifiedEvent[0][0] + " at " + modifiedEvent[0][1] + "</li>";
body += "<li>"
+ (modifiedEvent[0][0] != modifiedEvent[0][1] ? ("<del>Name: " + modifiedEvent[0][0] + "</del><br/>") : "")
+ "Name: " + modifiedEvent[0][1] + "<br/>"
+ (modifiedEvent[0][2] != modifiedEvent[0][3] ? ("<del>Start: " + formatDate(modifiedEvent[0][2]) + "</del><br/>") : "")
+ " Start: " + formatDate(modifiedEvent[0][3]) + "<br/>"
+ (modifiedEvent[0][4] != modifiedEvent[0][5] ? ("<del>End: " + formatDate(modifiedEvent[0][4]) + "</del><br/>") : "")
+ " End: " + formatDate(modifiedEvent[0][5]) + "<br/>"
+ (modifiedEvent[0][6] != modifiedEvent[0][7] ? ("<del>Location: " + (modifiedEvent[0][6] ? modifiedEvent[0][6] : "") + "</del><br/>") : "")
+ (modifiedEvent[0][7] ? (" Location: " + modifiedEvent[0][7] + "<br/>") : "")
+ (modifiedEvent[0][8] != modifiedEvent[0][9] ? ("<del>Description: " + (modifiedEvent[0][8] ? modifiedEvent[0][8] : "") + "</del><br/>") : "")
+ (modifiedEvent[0][9] ? (" Description: " + modifiedEvent[0][9] + "<br/>") : "")
+ "</li>";
}
body += "</ul>";
}

for (var tgtCal of removedEvents){
body += `<br/>${tgtCal[0]}: ${tgtCal[1].length} removed events<br/><ul>`;
for (var removedEvent of tgtCal[1]){
body += "<li>" + removedEvent[0][0] + " at " + removedEvent[0][1] + "</li>";
body += "<li>"
+ "<del>Name: " + removedEvent[0][0] + "</del><br/>"
+ "<del>Start: " + formatDate(removedEvent[0][1]) + "</del><br/>"
+ "<del>End: " + formatDate(removedEvent[0][2]) + "</del><br/>"
+ (removedEvent[0][3] ? ("<del>Location: " + removedEvent[0][3] + "</del><br/>") : "")
+ (removedEvent[0][4] ? ("<del>Description: " + removedEvent[0][4] + "</del><br/>") : "")
+ "</li>";
}
body += "</ul>";
}
Expand Down Expand Up @@ -985,7 +1098,7 @@ function checkForUpdate(){

var lastAlertedVersion = PropertiesService.getScriptProperties().getProperty("alertedForNewVersion");
try {
var thisVersion = 5.7;
var thisVersion = 5.8;
var latestVersion = getLatestVersion();

if (latestVersion > thisVersion && latestVersion != lastAlertedVersion){
Expand All @@ -1004,4 +1117,4 @@ function checkForUpdate(){
var version = json_decoded[0]["tag_name"];
return Number(version);
}
}
}

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