Scenario:
Open bot try a few commands.
Close laptop.
open again.
Bot says unable to connect.
I figured that this is because web socket closed. Is there a way to keep it open?
This issue is not related to web sockets, per se, but to Direct Line and the general nature of web pages.
When you open a web page it is largely static, assuming it's an every day run-of-the-mill page. If you close your laptop and reopen it nothing about the page should really change because there is no "live" connection being maintained.
However, when you load a page hosting a bot using Web Chat a live connection is opened via Direct Line. If you close your laptop and reopen it, then that connection is severed. Without direction, Web Chat doesn't know how to (re-)establish the connection without the page being reloaded.
Look over the answer I posted here. It shows how you can setup Web Chat to persist conversations with a bot when a user refreshes a page and/or navigates away and returns. It does rely on sessionStorage() for part of its implementation which means it will only persist for the current session. If the user fully closes and opens the window, then a new connection is created.
To maintain "sessions" even when the user closes the window would require a more robust solution.
Hope of help!
Related
I'm currently visiting Egypt and skype stopped working after a few days. It gives me "Skype home unavailable" and the status icon keeps spinning. I already searched the net for this issue and tried a few things which did not work. I also tried web skype and it the status icon shows green but messages don't go through anyway. I'm not asking about this general issue which seems to have many possible sources.
Now, while searching for this problem I came to realise that some web pages from skype web site are also not accessible, and I suspect it is either a HTTPS protocol configuration, or the Internet service is blocking skype.
For instance, this page:
https://support.skype.com/en/faq/FA10953/how-can-i-update-my-windows-firewall-settings-after-reinstalling-or-upgrading-skype
does not work in Firefox ("Secure Conection Failed") and in IE11 it only started working after after I actived SSL 2.0 and 3.0. Still, although skype-web opened once now I'm not even able to open it.
The address https://web.skype.com/ retuns "This page can’t be displayed" in IE11. And the button "Fix connection problems" finds nothing. After a few retries it seems to work out. Skype messages eventually eventually seem to get through but I can never do a live chat or a call or even a real phone call.
So, any idea why I can't access this and other skype pages? Is there some updated authentication protocol not well supported? Is there a way I can track it (I'm not a network specialist but maybe I can try something).
I found about blockage in Egypt: http://stepfeed.com/more-categories/big-news/egypt-blocks-popular-voip-apps-monitoring-facebook-skype/#.V0M9uVIiggQ
but I was able to use it when I arrived.
I'm trying to make a Firefox addon with the Firefox Add-on SDK and API, and I have some questions about their possibilities before I start using them.
My college's Wi-Fi authorization expires every 30 minutes only to have fun pissing off their students. There are already some autofill addons available on many browsers but it's still destructing to move the mouse pointer onto the "Login" button and click it when there is one second left to turn in a midterm paper. I've heard my friends complaining like this for months and I myself think the thing is actually annoying sometimes, so I decided to develop a Firefox addon that takes charge of the job so that the authorization process will feel not even existing once the addon is activated. (I just want to impress my friends honestly.)
For ease I would like to develop the addon within the Firefox add-on SDK. I found that my addon would be utilizing the page-mod, password and request APIs; page-mod to detect the Wi-Fi service's auto-redirection into their authorization page, password to fill in the page's form by a student ID and password stored in the individual Firefox browser, request to redirect the "Login Successful!" page into the originally given destination.
So I guess it should be possible to achieve my goal with this SDK and APIs, but there are still some questions that I need to ask before I proceed:
Is it possible to pass a callback function to page-mod::PageMod (not as a String or a URL to another JavaScript file)? If not, can it be done using the lower level API?
Is it possible to actually redirect a page in a tab into another page only using high level APIs?
Is it possible to remember the original destination's location (with the request method and contents) and call it in the process of page-mod::PageMod (in order to re-redirect out of the authorization page)? If not, can it be done using the lower level API?
Is it possible to perform the addon's redirection function on inactive (background) tabs where the opened webpages automatically keep connecting to the Internet and get redirected to the authorization page?
Thank you so much for reading and please spare a little bit of your time for me. Thank you again!
Is it possible to pass a callback function to page-mod::PageMod (not as a String or a URL to another JavaScript file)? If not, can it be done using the lower level API?
No, everything that goes through the port is serialized using JSON serialization (See docs). Instead you would probably emit an event from your content script to execute the callback method with parameters you pass it in the module scope and hardcode parts that need to be done in the content script with port event listeners.
Is it possible to actually redirect a page in a tab into another page only using high level APIs?
Totally, if you're in a content script, you can just set window.location, or in your modules you set the location of a tab, see https://developer.mozilla.org/en-US/Add-ons/SDK/High-Level_APIs/tabs#url.
Is it possible to remember the original destination's location (with the request method and contents) and call it in the process of page-mod::PageMod (in order to re-redirect out of the authorization page)? If not, can it be done using the lower level API?
Possible? Yes, depends a lot on how the redirection from the W-LAN works. Generally all the SDK offers you is getting load/ready events for tabs and reading a tab's current URL. So if you get a ready event at the point of the redirect you're fine. If your college login remembers the redirect target using a get parameter in the URL you're fine. If your college doesn't adjust the URL, you're fine. If you really need to dig through the request, you'll have to ge a bit deeper than even what the SDK offers you, but it is possible.
Is it possible to perform the addon's redirection function on inactive (background) tabs where the opened webpages automatically keep connecting to the Internet and get redirected to the authorization page?
JS execution for Add-ons is not paused based on a tabs state.
We are developing a web application which will be deployed to many clients. The application handles sensitive data, so security is necessary.
We are using Spring 4 MVC and Spring Security. Currently I have the session-timeout set up and that works fine, but I need a way for the client to be automatically redirected (client leaves application running and computer unlocked, people passing by would have access).
I was thinking of a way to accomplish this would be to have the client somehow send out periodic (every minute?) fake requests to the server. Maybe just a refresh? This way when the session gets invalidated, the client will automatically get redirected out of the application. I do not know if this is possible, and if it it is, how to implement it. Any suggestions?
You can watch mouse movement, but that's about the best you're going to get for indication of a user still being there without listening to the click event. But there is no way for javascript to tell if it is the active tab or if the browser is even open. (well, you could get the width and height of the browser and that'd tell you if it was minimized)
How can I detect with JavaScript/jQuery if the user is currently active on the page?
I am facing a scenario where live Twilio call gets dropped, if the browser window in which call is received is reloaded. Is there a way to overcome this set-back without affecting the live calls?
Twilio Evangelist here.
Based on your question, I assume you are using the Twilio Client JavaScript SDK? If that is indeed the case, then unfortunately, if the page thats hosting the SDK gets reloaded the connection between the browser and Twilio will drop since the browser is reloading everything, including the JavaScript SDK.
There are a couple of different techniques I can think of off the top of my head that you can use to help avoid page reloads, and another idea that could help you recover a call where the connection to the browser has dropped because of a page reload. A lot of this is going to depend on your specific app and the experience you are trying to create for your users.
So to help avoid having to reload the page:
1) Use AJAX requests to your server in order to avoid page reloads. If your page includes content like a form, or you want to update the page content with data form the server, you can look using AJAX requests to the server instead of a normal full page postback to submit the form, or to retrieve the data form the server. This would help in avoiding having to reload the entire page in those two scenarios.
2) Use an iFrame to host your page content, and then put the Twilio SDK in the parent page (the one that defined the iFrame). This would let you reload the content hosted in the iframe, without having to reload the entire host page, avoiding a reload the the Twilio library. The downside to this is that communicating between content in an iframe and its host can get really messy fast.
Neither of these two techniques is fool-proof. Obviously a user can always just hit the refresh button on their browser, and thats going to cause the connection to drop.
In a case where the page does get reloaded, and the connection from Twilio to the browser gets dropped, one idea is to leverage Twilios capability to help reconnect the caller together. When a user calls your twilio phone number, instead of connecting them directly to the Twilio Client running in the browser (by dialing a client with <Client>), instead dial that caller into a conference <Conference>, and then have the browser client connect into that same conference. The benefit to that is if the browser disconnects, the original caller won't get hung up on, they will still be sitting in the conference room. As long as you've saved the Conference SID or name, you can have the browser client reconnect to that conference.
Hope that helps point you in the right direction.
WP7 newbie here..
In my application, I am using embedded web browser control to load an external web page.
I have a PIN based validation step in that application, which involves
1) User Leaving the current application, (which has a external web page loaded in the embedded web browser) to launch the SMS Inbox.
2) User reads the SMS he just received, which has the PIN. I am sending this SMS to the user.
3) The User then needs to resume back to the original application by hitting back button, to enter the PIN which he received in the SMS earlier.
Once user enters Step2, my application will go into background, and subsequently will get tombstoned. Once user enter Step3, I want to restore application state (with the embedded web browser control), without making a fresh HTTP request again to load the web page.
So, with the given scenario in my mind, I have following two questions -
1) Is there a better way to do all this, like not having to exit the original application, and still let user read the SMS. ( i.e any api to read sms ?)
2) Is there a way to serialize the browser state/save entire web page (with images, css, js) , such that entire web page can be rendered exactly the way it was, when user left the running application.
Important points:
1) I can only use SMS as a communication channel. I can not use something like raw push notification channel, which could let me show PIN to the user, without exiting the application.
2) I am targeting Windows phone 7.0 runtime, but if there is a better option available in Windows Mango update, please do tell me.
Any sort of help is greatly appreciated.
Update:
Added link to the embedded web browser component.
1) There is no API that would let you access the contents of the Messaging hub from inside your application. This is set up for privacy purposes.
2) By default, the web browser saves its state. So if you navigate away from your app, and then come back - the same web page will still be there unless you explicitly re-navigate on activation
1) The better way to do this would be to not embed the web page within an app. Just build a mobile website. If all the functionality is within the web page you gain nothing but problems by trying to put it inside an app.
The web browser control is not intended to be used to create an alternative browser (which is really what you're doing).
2) You can try using the SaveToString() method to store the state of the page when tombstoned but this doesn't allow for modifications to the page since it was loaded (including anything dynamically updated or any state in javascript). If you have multiple pages you'll also need to maintain the internal backstack and the state of each page separately.
Short answer: If you want to put your application logic in a webBrowser control then you can't support tombstoning. Fast-App-Switching (in Mango) partially addresses this but not completely.