Let's say I want to show two WkWebView side by side, each logged in to the same website, but with two different accounts. The logins (and other data) should be persisted between launches
According to this 2017 wwdc talk, it can be done. This is the result I get: they share data.
And this is what I want, not sharing data.
According to the speaker, it's possible. He just doesn't say how.
A few approaches I've tried
Instantiating a new WkWebView. That made no difference. They still share data. I tried instantiating both from a storyboard and in code.
Changing my bundle identifier. Not a viable solution as I want the two datastores to run side by side. But it works, and also it seems the data (sans cookies) is stored in /Users/username/Library/WebKit/(bundle-identifier)
Instantiating a new WKProcessPool with webView.configuration.processPool = WKProcessPool(). Made no difference.
Handling cookies myself. This would be my last resort. I'd set the WKWebsiteDataStore to be the .nonPersistent() one, and save and delete cookies in my own store on open and close (the cookie observer doesn't trigger in nonPersistent). Bad in three ways: 1. I need a secure place to store them - (Keychain)? 2. It won't persist whatever the sites may have in Local Storage, 3: added work and complexity
Related
I have a WebAPI service, written in ASP.NET (not Core), for which I am trying to generate documentation, in order to allow other devs to use it. I found Swashbuckle, and installed it. Then, since I also use OData for some of my services, I added Swashbuckle.OData. Then, I modified the CustomProvider setting in SwaggerConfig to use the ODataSwaggerProvider. I also set ResolveConflictingActions(apiDescriptions => apiDescriptions.First()) because I had a few Actions with the same URL path, differing only by query string (I'll need to address that later). So far so good.
Then, I tested it. I started my web app, then added "/swagger/" to then end. I got a message stating that it was loading the resource info. However, after several minutes, I got a browser error debug popup, stating "Error: Not enough storage is available to complete this operation." It asks if I want to debug, and if I do, it takes me to the debugger in IE (the browser I'm using). The only code in the stack is either from jquery-1-8-0-min-js or swagger-ui-min-js (this part confuses me, as there is no "swagger-ui-min-js" file in my project; I'm assuming it's embedded in the dll). There is no part of the stack trace that floats back up to my code, and all the code there is minified, so it's very difficult to debug.
However, I do know that it is at least partially working, as three of the controllers do show up in the resulting page after you close the error popup. You can navigate through them, and all the GETs, POSTs, PUTs, and DELETEs seem to be there, and you can test them.
Is it the case that whenever you navigate to the "/swagger/" url, Swagger hits all the URLs in the service, in order to generate the documentation? I'm wondering if maybe it is hitting an action that is taking a particularly long time to run, or possibly its generated documentation is taking too much disk space (I have plenty of space on my disk, but maybe it is referring to RAM?).
Anyway, even if that were not an issue, how can I get it to generate something, some kind of document file, that I can send off to someone? I see no new files added to my folders, so it would seem that it re-does the whole process every time you navigate to the swagger URL.
When I tried the Chrome browser, I no longer had the issue (I was using IE11 before). Not sure what the problem was, but this was the workaround.
After a research it seems that Meteor Sessions are reset after refreshing page or opening the website in new tab, i.e. they are not usual server-side sessions but something like global javascript variables on client-side. Some people advice to use AmplifyJS, but I'm not sure that it will work like usual session in other frameworks/languages and also it is a third party library, so is there any normal way to use sessions in Meteor, i.e. keep user-specific data on server?
At this moment I'm handling that by using custom Collections, but it is not an ideal way of doing that because it is needed to remove expired values from Collection manually, which makes additional troubles.
Yes this is correct. Despite the name Session is nothing like a cookie, but just a reactive form of a variable stored in a hashmap
To keep data persistent across tabs you need to use a Collections (as this is the only way to reactively share data across tabs) - Cookies can't work because they can't be made reactive as data needs to be sent to the server to notify the client when there is a change. There really wouldn't be another way at the moment as the publish/subscribe methods can only send down data from collections at the moment.
You can use your setup you have now with your custom collection. You can use a server side cron job to remove expired data (either with Meteor.setInterval or Tom Coleman's cron.
There is a package developed just for that: https://atmospherejs.com/u2622/persistent-session
After installation you can use the following functions to set sessions which are persistent:
//store a persistent session variable which is stored across templates
Session.setPersistent(key, value);
//same as above, but automatically deletes session data when user logs out
Session.setAuth(key, value);
I've tried the package and it works like charm.
I kick off 5 uploads (of varying size) via the BackgroundTransferService. I have the following questions about the way it works:
It seems that on the emulator it does 2 uploads at a time. Is this how it works on the actual device? Can I programmatically change this behavior?
Can I count on the uploads going out in the order that I submitted them? I seem to be getting conflicting results in my testing.
When I inspect the BackgroundTransferService in my application, does it contain requests from other apps as well or just mine?
Do I need to reconnect events for all the BackgroundTransferRequest objects when coming back from being tombstoned? What about coming back from being reactivated?
Do I need to disconnect events from the BackgroundTransferRequest when I remove it from the BackgroundTransferService.Requests collection?
When I try to upload a non-existing URL:Port (on the localhost), the TransferStatus is reported as WaitingForNonVoiceBlockingNetwork. The upload never actually completes/fails. Is this how it is on the device? Should I remove the request when it encounters this TransferStatus?
You cannot influence the behaviour of the BTS. If you don't like the way it works you can write the transfer functionality as part of your own application but then you have to handle running in the background yourself.
There is no guarantee on sequence.
The BTS may be handling requests from other apps but you won't be able to see the details. Requests() will only return details for your app.
Surely a quick test will tell you this.
It's good practice to.
Have you checked the TransferError property whe you reach this situation? This is a perfectly valild status in other situations and so you shouldn't treat this as a automatic fail.
Im pretty new to struts2 and Ajax ,Actually i have a drop down menu in JSP lets say first.jsp, When user select a choice from dropdown menu,I am calling a function of Action class lets say Method1.In this method i am fetching some value from DB(lets say:a,b,c) and one value from java memory lets say d.Then I am forwarding to second.jsp and display all the parameters(a,b,c and d) in tabular format.
Now problem is that the parameter d is dynamic ,this is updating by some other application and if its change then I have to show it on JSP wihout any action.
One solution is I use in second.jsp , so after interval of 10 second again Mehod1 will call and it will fetch value(a,b,c) from db and updated value of d from java memory. and disply it to second.jsp.But in this case i am unnecessary retrieving value from db while my purpose is just to get value d from memory.This is working but this is causing my application to slower.
Can any body suggetst some other solution? or can i do it using ajax and how?
Any other advice? any help is appreciated.try to be more clear, i'm in lack of ideas in this problem, even it sounds like a classic :I have spend hours trying to play around with this but have got nowhere
Okay... What you're asking is a little fuzzy so let me rephrase:
You have a user (USER1) who opens a web page and sees some data.
You have a second user (USER2) (who may be an application) who is able set a value from time to time.
When USER2 updates that value you want USER1 to see it change in their open browser window?
If this is the case you need to understand basic ajax. For that get these demo applications working:
This example uses dojo and perhaps the S2 ajax tag lib I don't remember I prefer not to use ajax tags (as they are deprecated and prefer jquery for ajax):
http://struts.apache.org/2.x/docs/struts-2-spring-2-jpa-ajax.html
This example here shows a very similar application but using jquery, no tag library, upgraded to Spring 3, it still needs polish:
http://www.kenmcwilliams.com/Downloads/
Now that you know how to get data via ajax, look at the request with firebug. You'll see that the request is just like a typical function call, the browser keeps waiting for the data to come back.
What you do is simply not return from the action until new data is provided. This is called long polling see: http://en.wikipedia.org/wiki/Comet_%28programming%29#Ajax_with_long_polling
If you have not written a simple chat program, using just terminal windows I recommend you do so. Two windows per client (client-send, client-receive windows) and you'll need a server program. I remember hacking one together in a few hours using _Thinking In Java 2nd Edition (Later books took out the networking section if I remember correctly). Anyways between understanding client server interaction and long polling will let you get things working. It would be fun to extend the simple terminal based chat application to a S2 ajax chat application. Would make an awesome tutorial! PS: This is just an application of the producer/consumer problem (If you understand that then I guess you don't need to do the fun exercise).
The interfaces would look very pretty if the server was managed by spring. I know there must be nice servers already written but I am not familiar with any, but would love to hear of one.
I'm looking at using Subsonic with a multi-tenant ASP.net web application. There are multiple DB's (one per client/instance). The user logs in with a domain suffix to their username (e.g. user#tenant1, user#tenant2).
The custom membership provider will then determine which database a user is using, and authenticate against it. All user-initiated calls in the webapp will be wrapped in a SharedDbConnectionScope call, however I have a question regarding caching subsonic items.
Basically each instance will have a few records that rarely change (search options/configurations). I would like to read these in the Application_Start event, and cache them into the ApplicationState.
In the Application_Start event, it would loop over each client database, use a SharedDbConnectionScope to connect to each DB, and create these cached records (e.g. Application('tenant1_search_obj') = subsonic_object
When a user loads the search page, it would then check what domain a user is in, and then retreive that search option from the cache.
Is this feasible? I'm just concerned that if I cache an object, when I retrieve it from the application cache it won't know what connection its using, and might possibly pull in the wrong data.
I'd like to avoid putting this in the session object if possible.
it's possible, but probably not a good idea since it doesn't scale at all - you're going to pop a new connection for every single client whether they show up or not.
Maybe your best bet is to "lazy load" the setting - first hit on the search page loads the config into the cache or Application settings and there it stays.
Other than that - to answer your question it is possible. If you're using SubSonic 3, just create a new provider on the fly using ProviderFactory.GetProvider(connectionString, "System.Data.SqlClient") and then execute your stuff against it.
For SubSonic 2 - SharedConnectionScope is what you want.