Can't end BackgroundTask: no background task exists with identifier , or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug.
self.backgroundTaskIdentifier = UIApplication.shared.beginBackgroundTask(expirationHandler: {
if self.backgroundTaskIdentifier != UIBackgroundTaskIdentifier.invalid{
UIApplication.shared.endBackgroundTask(self.backgroundTaskIdentifier!)
self.backgroundTaskIdentifier = UIBackgroundTaskIdentifier.invalid
}
})
Related
I Have the following model
class Process: Object {
#objc dynamic var processID:Int = 1
let steps = List<Step>()
}
class Step: Object {
#objc private dynamic var stepCode: Int = 0
#objc dynamic var stepDateUTC: Date? = nil
var stepType: ProcessStepType {
get {
return ProcessStepType(rawValue: stepCode) ?? .created
}
set {
stepCode = newValue.rawValue
}
}
}
enum ProcessStepType: Int { // to review - real value
case created = 0
case scheduled = 1
case processing = 2
case paused = 3
case finished = 4
}
A process can start, processing , paused , resume (to be in step processing again), pause , resume again,etc. the current step is the one with the latest stepDateUTC
I am trying to get all Processes, having for last step ,a step of stepType processing "processing ", ie. where for the last stepDate, stepCode is 2 .
I came with the following predicate... which doesn't work. Any idea of the right perform to perform such query ?
my best trial is the one. Is it possible to get to this result via one realm query .
let processes = realm.objects(Process.self).filter(NSPredicate(format: "ANY steps.stepCode = 2 AND NOT (ANY steps.stepCode = 4)")
let ongoingprocesses = processes.filter(){$0.steps.sorted(byKeyPath: "stepDateUTC", ascending: false).first!.stepType == .processing}
what I hoped would work
NSPredicate(format: "steps[LAST].stepCode = \(TicketStepType.processing.rawValue)")
I understand [LAST] is not supported by realm (as per the cheatsheet). but is there anyway around I could achieve my goal through a realm query?
There are a few ways to approach this and it doesn't appear the date property is relevant because lists are stored in sequential order (as long as they are not altered), so the last element in the List was added last.
This first piece of code will filter for processes where the last element is 'processing'. I coded this long-handed so the flow is more understandable.
let results = realm.objects(Process.self).filter { p in
let lastIndex = p.steps.count - 1
let step = p.steps[lastIndex]
let type = step.stepType
if type == .processing {
return true
}
return false
}
Note that Realm objects are lazily loaded - which means thousands of objects have a low memory impact. By filtering using Swift, the objects are filtered in memory so the impact is more significant.
The second piece of code is what I would suggest as it makes filtering much simpler, but would require a slight change to the Process model.
class Process: Object {
#objc dynamic var processID:Int = 1
let stepHistory = List<Step>() //RENAMED: the history of the steps
#objc dynamic var name = ""
//ADDED: new property tracks current step
#objc dynamic var current_step = ProcessStepType.created.index
}
My thought here is that the Process model keeps a 'history' of steps that have occurred so far, and then what the current_step is.
I also modified the ProcessStepType enum to make it more filterable friendly.
enum ProcessStepType: Int { // to review - real value
case created = 0
case scheduled = 1
case processing = 2
case paused = 3
case finished = 4
//this is used when filtering
var index: Int {
switch self {
case .created:
return 0
case .scheduled:
return 1
case .processing:
return 2
case .paused:
return 3
case .finished:
return 4
}
}
}
Then to return all processes where the last step in the list is 'processing' here's the filter
let results2 = realm.objects(Process.self).filter("current_step == %#", ProcessStepType.processing.index)
The final thought is to add some code to the Process model so when a step is added to the list, the current_step var is also updated. Coding that is left to the OP.
I use PloneBooking3.0.0a2 with Plone4.3.3, but if I want to show periodic bookings I get an unsufficient privileges error. In my opinion there are two functions responsible for that:
function showPeriodicityResult(url, alt_url, target_id, form_id, waiting_text) {
ajaxobject = getXmlHttpRequest();
form = document.getElementById(form_id);
periodicity_type = getPeriodicityType(form);
periodicity_end_date = form['periodicity_form_periodicity_end_date_0'].value;
periodicity_variable = form['periodicity2_x'].value;
query = getPeriodicityQuery(periodicity_type, periodicity_end_date, periodicity_variable);
url = url + query + "&d=" + (new Date()).getTime();
alt_url = alt_url + query;
// Opera does not support ajax
if (ajaxobject == null) {
window.location = alt_url;
} else {
var node = document.getElementById(target_id);
node.innerHTML = waiting_text;
ajaxobject.open('GET', url, true);
ajaxobject.onreadystatechange = function(){CallBackGenerateAjaxHTML(ajaxobject, target_id);};
ajaxobject.send(null);
}
}
and
function CallBackGenerateAjaxHTML(ajaxobject, target_id) {
if (ajaxobject.readyState == 4) {
if (ajaxobject.status > 299 || ajaxobject.status < 200) {
return;
}
elem = document.getElementById(target_id);
elem.innerHTML = ajaxobject.responseText;
}
}
Especially the innerHTML setting with responseText seems to be a problem. Is there is a quick answer like Plone version diff from 3 to 4 or must I work in-depth?
You mentioned in the comments that the portal.uid_catalog raises the Unauthorized.
When I recall correctly the uid-catalog requires a higher permission since the last Plone hotfix. But you also can search an Item when given a UID with the normal Catalog.
here_obj python:portal.portal_catalog(UID=here_uid)[0].getObject();
This way you should be able to get your Object.
We want to add some type of functionality that when a page takes longer than x seconds to load a warning is presented. We don't want that to throw a WaitTimeoutException, because the test can still execute cleanly, just longer than desired. We would still use the default timeout to throw our WaitTimeoutException after 20 seconds. This implies that x is less than 20. It's essentially a performance check on the page itself.
I've tried using the onLoad function:
void onLoad(Page previousPage) {
double warnSeconds = 0.001
LocalDateTime warnTime = LocalDateTime.now().plusMillis((int)(warnSeconds * 1000))
boolean warned = false
boolean pageReady = false
while(!warned && !pageReady) {
if(LocalDateTime.now() > warnTime) {
log.warn("${this.class.simpleName} took longer than ${warnSeconds} seconds to load")
warned = true
}
pageReady = js.exec('return document.readyState') == 'complete'
}
}
However:
"Sets this browser's page to be the given page, which has already been
initialised with this browser instance."
Any help would be great. Thanks.
______________________________________EDIT_______________________________________
Instead of using my own timer, used javascript window.performance. Now I'm looking to be able to access a variable in my test from my pages.
______________________________________EDIT_______________________________________
void onLoad(Page previousPage) {
def performance
//TODO system property page time
def pageTime = 8000
if (browser.driver instanceof InternetExplorerDriver) {
performance = js.exec('return JSON.stringify(window.performance.toJSON());')
} else {
performance = js.exec('return window.performance || window.webkitPerformance || window.mozPerformance ' +
'|| window.msPerformance;')
}
int time = performance['timing']['loadEventEnd'] - performance['timing']['fetchStart']
if (time > pageTime) {
String errorMessage = "${this.class.simpleName} took longer than ${pageTime} milliseconds " +
"to load. Took ${time} milliseconds."
log.error(errorMessage)
//TODO Soft Assert
}
}
New chunk of code to actually get the correct performance data instead of using my own timer. Now where I have //TODO Soft Assert, I have an object in my test that I want to access from my Page Object, but have no context. How can I get context?
Does anyone know how to parse a credit card string input from a Magnetic Card Swiper?
I tried a JavaScript parser but never got it to work. This is what the input looks like.
%BNNNNNNNNNNNNNNNN^DOE/JOHN
^1210201901000101000100061000000?;NNNNNNNNNNNNNNNN=12102019010106111001?
The N's are the credit card number.
See the Magnetic Stripe Card entry # Wikipedia:
Track one, Format B:
Start sentinel — one character (generally '%')
Format code="B" — one character (alpha only)
Primary account number (PAN) — up to 19 characters. Usually, but not
always, matches the credit card number
printed on the front of the card.
Field Separator — one character (generally '^')
Name — two to 26 characters
Field Separator — one character (generally '^')
Expiration date — four characters in the form YYMM.
Service code — three characters
Discretionary data — may include Pin Verification Key Indicator (PVKI,
1 character), PIN Verification Value
(PVV, 4 characters), Card Verification
Value or Card Verification Code (CVV
or CVK, 3 characters)
End sentinel — one character (generally '?')
Longitudinal redundancy check (LRC) — one character (Most reader devices
do not return this value when the card
is swiped to the presentation layer,
and use it only to verify the input
internally to the reader.)
I hope the data is fake, otherwise Anyone could get the:
Name
Expiration Date
CVV
And I'm not sure but I think the credit card number (or # of possibilities) can be computed using the LRC.
I did you one better: I made a video showing how to do exactly this with ASP.Net/c#:
http://www.markhagan.me/Samples/CreditCardSwipeMagneticStripProcessing
Here is the section of code that you probably care about:
protected void CardReader_OTC(object sender, EventArgs e)
{
bool CaretPresent = false;
bool EqualPresent = false;
CaretPresent = CardReader.Text.Contains("^");
EqualPresent = CardReader.Text.Contains("=");
if (CaretPresent)
{
string[] CardData = CardReader.Text.Split('^');
//B1234123412341234^CardUser/John^030510100000019301000000877000000?
PersonName.Text = FormatName(CardData[1]);
CardNumber.Text = FormatCardNumber(CardData[0]);
CardExpiration.Text = CardData[2].Substring(2, 2) + "/" + CardData[2].Substring(0, 2);
}
else if (EqualPresent)
{
string[] CardData = CardReader.Text.Split('=');
//1234123412341234=0305101193010877?
CardNumber.Text = FormatCardNumber(CardData[0]);
CardExpiration.Text = CardData[1].Substring(2, 2) + "/" + CardData[1].Substring(0, 2);
}
}
The complete code is on that website I linked above.
From what I can remember:
That is a two-track magnetic strip data - first track starts with % and ends with ?, the second track starts with ; and ends with ?. These are Start/End markers.
The first track is alphanumeric, the second track is numeric, and there is a third track which is numeric also (if my memory serves correct).
The data between the start/end markers can be variable depending on the recording density of the magnetic strip. The higher the density, the more it can be recorded on one track.
Using a regex to get at the data may not be a reliable method to pick out the information required.
And not all credit cards have exactly two tracks, some uses three tracks.
Generally for a card-not present transaction (i.e. MOTO transactions) you will need cc#, expiry and possibly the CVV (aka CVC2 etc). You can obtain the first 2 from a card-swipe as this in the track data. CVV is printed on the card.
Name on card doesn't matter so much. Unless your acquirer and the cardholder are using address verification, but you can find that between ^^, it may have white space padding which you can remove.
The part you want is track2 NNNNNNNNNNNNNNNN=1210 where NNNNN=card number PAN, and 1210 = Expiry date.
Even if track1 is empty (which sometimes it is as it's not used in processing), you will still get the ;?, so you could use the index of the second ; as start of the string and = as the end of the cc# string. With the 4 characters after the = as the expiry.
I would advise getting the card holder to sign something in record of the transaction otherwise they could dispute the card and do a charge-back.
And not all credit cards have exactly two tracks, some uses three tracks.
Only track2 is used for processing and has a standardized format.
Debit cards can't generally be processed (unless they have a visa-debit card or something).
P.S. you shouldn't store cc data in plain text, so try and keep everything in mem or strong encryption.
Try this :
https://github.com/pdamer/CardReader/blob/master/CardReader.js
Or this:
http://blog.cnizz.com/2008/10/16/javascript-snippet-for-handling-credit-card-readers/
I think that what u need
here is my code:
1st the listener to get the data.... this data needs validation which i am looking for help on. A good swipe works fine, but a bad swipe will cause an error in the parser.
$('#cc-dialog-form').keypress(function(e)
{
var charCode = e.which;
//ie? evt = e || window.event;
track_start = '%';
finished = false;
timeout = 100;
track_start_code = track_start.charCodeAt(0);
//console.log('Track_start_code: ' + track_start_code);
//console.log('keycode ' + e.keycode);
//console.log('charcode ' + charCode);
//console.log('track_start_code ' + track_start_code);
if (charCode == track_start_code)
{
collect_track_data = true;
$('#offline_cc_entry').hide();
$('#cc_online').hide();
$('#Manual_CC_DATA').hide();
$('#cc_loading_image').show();
}
if (collect_track_data)
{
if (charCode == $.ui.keyCode.ENTER)
{
//all done
//console.log( card_data);
collect_track_data = false;
$('#cc_loading_image').hide();
$('#Manual_CC_DATA').show();
//console.log("Track Data: " + card_data);
process_swipe_cc_payment(card_data);
card_data = '';
}
else
{
card_data = card_data + String.fromCharCode(charCode);
console.log(card_data);
if (e.preventDefault) e.preventDefault();
e.returnValue=false;
return false;
}
}
else
{
//i am guessing this will be regular input?
if (charCode == $.ui.keyCode.ENTER)
{
process_keyed_or_offline_CC_payment();
}
}
//console.log("which: " + e.which);
//console.log("keyCode: " + e.keyCode);
//track and collect data here?
});
And here is the parser.... note I put it all in one function so I can destroy all the variables so they are not lingering in a browser.
parse_data = true;
if (parse_data)
{
var parsed_card_data = {};
parsed_card_data['card_data'] = card_data;
var tracks = card_data.split("?");
//console.log ("tracks");
//console.log (tracks);
parsed_card_data['track1'] = tracks[0];
parsed_card_data['track2'] = tracks[1];
//if there is a third track we might find it under tracks[2]
//splitting the card data OPTION 1
var track1_parsed = tracks[0].split("^");
//console.log (track1_parsed);
//track1 data....
var card_number_track1 = track1_parsed[0].substring(2);
parsed_card_data['card_number_track1'] = card_number_track1;
var details2_1 = tracks[1].split(";");
details2_1 = details2_1[1].split("=");
var exp_date_track_1 = details2_1[1];
exp_date_track_1 = exp_date_track_1.substring(0, exp_date_track_1.length - 1);
exp_date_track_1 = exp_date_track_1.substring(2, 4) + "/" + exp_date_track_1.substring(0,2);
parsed_card_data['exp_track1'] = exp_date_track_1;
//now check if track one matches track 2...
track2_parsed = tracks[1].split("=");
card_number_track_2 = track2_parsed[0].substring(1);
parsed_card_data['card_number_track_2'] = card_number_track_2;
exp_date_track_2 = track2_parsed[1].substring(0,4);
exp_date_track_2 = exp_date_track_2.substring(2, 4) + "/" + exp_date_track_2.substring(0,2);
parsed_card_data['exp_date_track_2'] = exp_date_track_2;
var primary_account_number = card_number_track1.substring(0,1);
if(card_number_track1 == card_number_track_2 && exp_date_track_1 == exp_date_track_2)
{
//now make a security feature showing the last 4 digits only....
parsed_card_data['secure_card_number'] = "xxxx " + card_number_track1.substring(card_number_track1.length-4, card_number_track1.length);
if(card_number_track1.length == 15)
{
parsed_card_data['card_type'] = "American Express";
}
else if(primary_account_number == 4)
{
parsed_card_data['card_type'] = "Visa";
}
else if(primary_account_number == 5)
{
parsed_card_data['card_type'] = "Master Card";
}
else if(primary_account_number == 6)
{
parsed_card_data['card_type'] = "Discover";
}
else
{
parsed_card_data['card_type'] = false;
}
var names_1 = track1_parsed[1].split("/");
parsed_card_data['first_name'] = names_1[1].trim();
parsed_card_data['last_name'] = names_1[0].trim();
//console.log("return Data");
//console.log(return_data);
}
else
{
parsed_card_data = false;
}
//zero out the variables...
tracks = '';
track1_parsed = '';
card_number_track1 = '';
details2_1 = '';
exp_date_track_1 = '';
track2_parsed = '';
card_number_track_2 = '';
exp_date_track_2 = '';
primary_account_number = '';
}
if(parsed_card_data)
{
//console.log(parsed_card_data);
$('#card_type').val(parsed_card_data['card_type']);
$('#credit_card_number').val(parsed_card_data['secure_card_number']);
$('#expiration').val(parsed_card_data['exp']);
$('#card_holder').val(parsed_card_data['first_name']+ " " + parsed_card_data['last_name']);
//parsed_card_data['track1'] is basically what we want???
$('#CC_SWIPE_INSTRUCTIONS').hide();
$('#CC_DATA').hide();
$('#cc_loading_image').show();
var post_string = {};
post_string['ajax_request'] = 'CREDIT_CARD_PAYMENT';
post_string['amount'] = $('#cc_input').val();
post_string['card_data'] = parsed_card_data;
post_string['pos_sales_invoice_id'] = pos_sales_invoice_id;
post_string['pos_payment_gateway_id'] = $('#pos_payment_gateway_id').val();
post_string['line'] = 'online';
post_string['swipe'] = 'swipe';
card_data = '';
parsed_card_data = {};
var url = 'ajax_requests.php';
$.ajax({
type: 'POST',
url: url,
data: post_string,
async: true,
success: function(response)
{
$('#cc_loading_image').hide();
console.log(response);
$('#CC_RESPONSE').show();
$('#CC_RESPONSE').html(response);
//here we would update the payment table - currently we will just refresh
post_string = '';
}
});
post_string = '';
}
else
{
//error
alert("Read Error");
$( "#cc-dialog-form" ).dialog( "close" );
}
It seems that it is impossible to capture the keyboard event normally used for copy when running a Flex application in the browser or as an AIR app, presumably because the browser or OS is intercepting it first.
Is there a way to tell the browser or OS to let the event through?
For example, on an AdvancedDataGrid I have set the keyUp event to handleCaseListKeyUp(event), which calls the following function:
private function handleCaseListKeyUp(event:KeyboardEvent):void
{
var char:String = String.fromCharCode(event.charCode).toUpperCase();
if (event.ctrlKey && char == "C")
{
trace("Ctrl-C");
copyCasesToClipboard();
return;
}
if (!event.ctrlKey && char == "C")
{
trace("C");
copyCasesToClipboard();
return;
}
// Didn't match event to capture, just drop out.
trace("charCode: " + event.charCode);
trace("char: " + char);
trace("keyCode: " + event.keyCode);
trace("ctrlKey: " + event.ctrlKey);
trace("altKey: " + event.altKey);
trace("shiftKey: " + event.shiftKey);
}
When run, I can never get the release of the "C" key while also pressing the command key (which shows up as KeyboardEvent.ctrlKey). I get the following trace results:
charCode: 0
char:
keyCode: 17
ctrlKey: false
altKey: false
shiftKey: false
As you can see, the only event I can capture is the release of the command key, the release of the "C" key while holding the command key isn't even sent.
Has anyone successfully implemented standard copy and paste keyboard handling?
Am I destined to just use the "C" key on it's own (as shown in the code example) or make a copy button available?
Or do I need to create the listener manually at a higher level and pass the event down into my modular application's guts?
I did a test where I listened for key up events on the stage and noticed that (on my Mac) I could capture control-c, control-v, etc. just fine, but anything involving command (the key) wasn't captured until I released the command key, and then ctrlKey was false (even though the docs says that ctrlKey should be true for the command key on the Mac), and the charCode was 0. Pretty useless, in short.
Another incredibly annoying thing that I just realized is that ctrl-c can't be captured by event.ctrlKey && event.keyCode = Keyboard.C (or ...event.charCode == 67), instead you have to test for charCode or keyCode being 3. It kind of makes sense for charCode since ctrl-c is 3 in the ASCII table, but it doesn't make sense for keyCode, which is supposed to represent the key on the keyboard, not the typed character. The same goes for all other key combos (because every ctrl combo has an ASCII equivalent).
Edit Found a bug in the Flex bug system about this: https://bugs.adobe.com/jira/browse/FP-375
I've found one workaround to this one based on the capture sequence. When you press Cmd+A, for example, the sequence is:
type: KEY_DOWN, keyCode 15
type: KEY_UP, keyCode 15
type: KEY_DOWN, keyCode 65
So everytime you get keyCode 15 down and then up and the next capture is down you can assume that the user pressed the key combination. My implementation end up like this:
protected var lastKeys:Array;
this.stage.addEventListener(KeyboardEvent.KEY_DOWN, keyHandler, false, 0, true);
this.stage.addEventListener(KeyboardEvent.KEY_UP, keyHandler, false, 0, true);
private function getCmdKey(ev:KeyboardEvent):Boolean {
this.lastKeys.push(ev);
this.lastKeys = this.lastKeys.splice(Math.max(0, this.lastKeys.length-3), 3);
if (this.lastKeys.length < 3) return false;
if (ev.keyCode != 15 && ev.type == KeyboardEvent.KEY_UP) {
var firstKey:KeyboardEvent = this.lastKeys[0] as KeyboardEvent;
var secondKey:KeyboardEvent = this.lastKeys[1] as KeyboardEvent;
if (firstKey.keyCode == 15 && firstKey.type == KeyboardEvent.KEY_DOWN &&
secondKey.keyCode == 15 && secondKey.type == KeyboardEvent.KEY_UP) {
return true;
}
}
return false;
}
private function keyHandler(ev:KeyboardEvent):void {
var cmdKey:Boolean = this.getCmdKey(ev.clone() as KeyboardEvent);
var ctrlKey:Boolean = ev.ctrlKey || cmdKey;
if (ctrlKey) {
if (ev.keyCode == 65) {
// ctrl + "a"-- select all!
}
}
}
For me, the following works:
private var _ctrlHoldFlag:Boolean = false;
// Do something if CTRL was held down and C was pressed
// Otherwise release the ctrl flag if it was pressed
public function onKey_Up(event:KeyboardEvent):void {
var keycode_c:uint = 67;
if (_ctrlHoldFlag && event.keyCode == keycode_c)
{
//do whatever you need on CTRL-C
}
if (event.ctrlKey)
{
_ctrlHoldFlag = false;
}
}
// Track ctrl key down press
public function onKey_Down(event:KeyboardEvent):void
{
if (event.ctrlKey)
{
_ctrlHoldFlag = true;
}
}