Longpoll | A PHP / Jquery XHR Longpolling based chat application | Chat library
kandi X-RAY | Longpoll Summary
kandi X-RAY | Longpoll Summary
(Index.php) The chat begins at index.php by requiring you to enter your name along with the name of the person you intend to chat with. These values are stored in cookies and used during the entire chat process to ensure delivery of the message to the intended recipient. If you visit index.php while already logged in, you will be redirected to chat.php. (chat.php) Once logged in, you are directed to chat.php. This is where the magic happens. Consists of the chat box (where you see the conversation) and the message box (where you type out messages). (logout.php) Unsets the cookies and logs you out. A barebones chat system consists of two major actions - sending a message to a specific recipient and receiving the message on the intended recipient’s end. Additional frills of notifying you when the other user is typing etc. are minor modifications of the same mechanisms.
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QUESTION
I have 1 server, 1 Asp.Net Core app, nginx, 2 angular apps being hosting on the same Linux Debian server. My use of SignalR is as: 2 apps getting data from same SignalR hubs. I have 2 hubs. 1 is working perfectly for 2 apps, 1 is working perfectly for one app and doesn't work for another one(but they are using from practically the same code). May I ask for some ideas why this error pops up? Thank You for any help.
P.S. everything works perfectly well on local machine.
Configurations: Asp.Net Core: ...ANSWER
Answered 2021-May-06 at 22:33This looks like an issue with the location order in the nginx config file.
The signalr hub connection seems to try to connect to location / instead of location /api/hubs, as all requests will be caught by index.html. Try moving the location / part below the api part.
QUESTION
I get regularly following error message while running odoo v14 locally in docker:
...ANSWER
Answered 2021-May-04 at 04:58Those logs are a cryptic way Odoo tells you that you need to configure your proxy correctly.
Odoo normal operations are done through the main (also called HTTP) port, which defaults to 8069. However, long polling requests are a bit different:
- In threaded mode (
workers = 0, best for development), they pass though the same 8069 port. - In multiprocess mode (
workers = 2or more, best for production), they use a specific process which listens by default on port 8072.
Your browser knows nothing about how Odoo is configured. It just makes all requests through the same port, whatever it is (tip: HTTP uses 80 by default, and HTTPS uses 443).
That's why, if you are using Odoo in multiprocess mode, there must be an inverse proxy sitting between the web browser and Odoo, directing requests to the right port depending on the path.
Odoo docs give an example nginx configuration and more details. Check them out: https://www.odoo.com/documentation/14.0/setup/deploy.html#id7
QUESTION
I've been developing a deployed Odoo v14 isntance which I used to access using the IP. My intention was to access this instance using a subdomain I own, I have registered domainname.com and created an A record called crm.domainname.com targeting the IP where my Odoo instance is. The link was working correctly but I want to hide the IP and only display crm.domainname.com when Odoo is accessed so I installed Nginx to configure the domain and use it as reverse proxy.
Here is where my problem comes, I don't have much experience configuring Nginx but after some research and experimenting I came up with this configurations (but I think they are redundant)
file /etc/nginx/nginx.conf
ANSWER
Answered 2021-Mar-31 at 11:43I've been able to solve this problem where assets where not loading and it was almost all a misconfiguration of my Nginx!
First of all, in file /etc/nginx/nginx.conf
I've deleted the server block inside http,
I had to include the sites-enabled configuration and remove the server directives to main HTTP block.
QUESTION
ANSWER
Answered 2021-Mar-31 at 06:57If you want nginx to rewrite the url directly you can remove this line:
QUESTION
I have a blazor server app that is a .Net 5.0 application deployed on AWS using AWS Beanstalk. It is a Single Instance deployment, so I currently can't use load balancing (due to current restrictions given to me). The deployed environment platform is "IIS 10.0 running on 64bit Windows Server Core 2019/2.6.3". When i run this locally on VS2019 and local iis server, the app works fine. But once deployed, it throws an error in the browser console:
...ANSWER
Answered 2021-Feb-24 at 20:34Websockets are needed for Blazor. In the windows beanstalk environment, it is apparently disabled by default.
I enabled them by using this pre-defined config from aws.
QUESTION
I need to connect to a SignalR server from Go. I've been trying to use some libraries and articles to help me with it:
- https://github.com/x2v3/signalr
- https://github.com/devigned/signalr-go
- https://www.derpturkey.com/signalr-is-an-abomination-how-to-connect-using-raw-websockets/
- https://blog.3d-logic.com/2015/03/29/signalr-on-the-wire-an-informal-description-of-the-signalr-protocol/
The problem is that I need to retrieve a token from a different port. My SignalR server address is https://server:10446/endpoint, but I need to retrieve my token from https://server:10443/connect/token and this is drifting from the normal SignalR protocol.
I'm able to get my token. And able to get the negotiate step getting the following response:
...ANSWER
Answered 2020-Dec-10 at 11:10Solution was given by Brennan. Thanks a lot for it!
It looks like you're missing part of the message payload. Spec github.com/dotnet/aspnetcore/blob/master/src/SignalR/docs/specs/… "Both the HandshakeRequest and HandshakeResponse messages must be terminated by the ASCII character 0x1E (record separator)."
QUESTION
I'm using https://github.com/tucnak/telebot to creating a bot in golang. I want to add a handler after the bot has been started but it's not working. in other words, I want to add a handler in runtime.
...ANSWER
Answered 2020-Dec-03 at 04:03Well, you can create a new handler after the bot has been(main func) started but you have to call the handler before bot.start(). You can create a new function called handleDelete and there you can handle /delete and then call the function right before bot.start(). Hope that makes sense.
QUESTION
for event in longpoll.listen():
if event.type == VkEventType.MESSAGE_NEW and event.to_me:
if event.from_user:
request = event.text
line = request.lower()
user = event.user_id
if str(line) == "!add " :
print("Data has updated.")
ANSWER
Answered 2020-Dec-02 at 13:15The question "how to make if the line similar to /change admin the function was performed?" is not clear. Also the code expect to have indent.
If understood correctly you need to check if the line has "/change admin" or you want to check if there is "/change" and "admin" in line, although both being same.
If above is the case, considering line has "/change "
QUESTION
I have C# .NET Framework SignalR Client application & ASP.NET Core 2.1 server. When i trying to start connection to SignalR Hub by WebSockets, i get exception.
...ANSWER
Answered 2020-Nov-30 at 12:35I believe this should work:
QUESTION
I am developing a .Net Core (3.1) web application hosted with IIS 10. When I am trying to use SignalR on localhost, I am able to connect totally fine and receive messages from the backend, but after I publish it to IIS, I get the error: "Server returned handshake error: Handshake was canceled." In the client logs on Chrome's console, I get the message: "Information: SSE connected to http://myserver.com/MyApplication/output" before I get the error described above (which you would think means that I connected successfully)...
I have seen other posts where people have suggested that I have to enable webSockets on IIS, and I have already checked the my site has this enabled.
I have also seen people suggest to try using the longPolling argument in the withUrl function when creating the connection, and this has not helped either.
I have also added SignalR Event Log Trace Listeners to my web.config file, and the only warning I get that might be related to this issue is that I get a warning from the .NET runtime that reads "Failed to determine the https port for redirect." I am not sure what this means or if it would be related to SignalR, but as this also appears to deal with Middleware, it might be significant.
One thing that I thought might be related is that my site is just one of multiple hosted on this server, so that when I am running locally, I can use the following to connect to SignalR:
hubConnection = new signalR.HubConnectionBuilder().withUrl("/output").build();
But because of the way this site is deployed on my server, I have to use this:
hubConnection = new signalR.HubConnectionBuilder().withUrl("/MyApplication/output").build();
when I deploy the site or else I get a 404 error...
Would there be any issue there? I noticed when inspecting the network requests that on localhost, the URL to connect with the socket is "wss://localhost:44315/output?id=..." and I get the "Status Code: 101 Switching Protocols", but after I deploy, the url that is used is "http://myserver.com/MyApplication/output?id=..." and I get a "200 OK" just before receiving the error described at the top. Why does wss get used on localhost but http is requested from my client when I deploy?
...ANSWER
Answered 2020-Sep-23 at 22:09FINALLY discovered the issue after days of debugging... The reason I was getting a "101" response on localhost and not when published is because 101 is basically the server (IIS in my case) saying "I support web sockets". I realized that because I wasn't getting this when published, web sockets were probably not enabled in IIS. It was weird, however, because I went into IIS manager and it said that web sockets were enabled, but after much more research, I found that you also have to go into "Server Manager" and enable it as well (see here https://docs.microsoft.com/en-us/iis/get-started/whats-new-in-iis-8/iis-80-websocket-protocol-support and follow step by step instructions). I did not realize both were required.
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Install Longpoll
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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