Create A Http Listener?
Jan 4, 2010create a http listener using vb .net.
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Using HTTP Listener To Parse URL Parameters?
Jul 7, 2011I intend to write a .NET application that does logging and analytics to data using VS 2010. I want to link my application with an external non .NET application via intranet. This external application provides integration through URL triggers. When an event occurs it can send this event parameters to any application via HTTP/HTTPS POST or GET requests. It allows me to select the event parameters to be included in the HTTP request that will be sent as URL parameters. URL parameters consist of a name and a value, and are separated from the URL with a question mark (?).
So an example request can look like this: [URL] any dynamic elements in the URL are displayed in brackets (<>), and are replaced by the corresponding event used at run time.
Now what design method should I follow to create a component in my application to listen to the URL request and parse it's elements. Knowing that I want to protect my URL listener with a username and password.
Possible To Create A TCP Listener That Does Not Need A Specific Number Of Connections Initialized?
Jan 30, 2009I am totally new to socket connections, so I've pieced together code from the internet to try and start a TCP Listener object. [code] Is it possible to create a TCP listener that does not need a specific number of connections initialized? Can I just have it listen on an open port until data is received? I will be receiving a lot of data at once from many servers...
View 1 RepliesVS 2008 Intercept Specific URLS - Create A Listener Type Application
Sep 30, 2009I'm wondering if it's possible to create a listener type application that would monitor webaddresses that the user attempts to go to. And can then either block or redirect the browser to another website. Purpose: I know this seems to sound a little weird but what I'm attempting to do is a NetNanny type application that can run on the user's PC and the allow, prevent, rewrite (would look for particular keywords and rewrite them "words I wouldn't want my 7yr old seeing or reading), or redirect to other webpages. I would also like to be able to handle both IE and Firefox browser with this one application.
[Code]...
Create A HTTP Web Server In VB Code?
Jun 2, 2010I want a PC to operate as a mini HTTP web server that can receive requests from local (WIFI) devices. I know how to resolve the addresses so that the URL of the PC will be known on the WIFI network, but I'm not sure how to get the PC to act as a HTTP server.
View 12 RepliesCreate An HTTP Request In Program With These Properties?
Jul 27, 2011I need to know how to create an HTTP request in vb.net with these properties? No idea which parts I send in as text, and what might be built in properties.[code]...
View 6 RepliesHttp - Create A Post With The HttpWebRequest Class?
Nov 10, 2009How to create an POST with the HttpWebRequest Class in VB.net (2008)? I can find exemples with text only but not with text and files.
View 1 RepliesHTTP Client Component For Communicating With HTTP Servers
Jan 17, 2009Anyone know anymore .DLL Files that are like this?
HTTP client component for communicating with HTTP servers. [URL]
Im looking for something that acts like Web Browser Control But it is not. It should be like HttpWebRequest Class But handle the stuff properly like a Web Browser Control Does.
So i found Chilkat HTTP .NET
Regex - Extracting HTTP Link(http://) For The String In .NET?
Sep 28, 2011I have the following column values in my table Sample values:
[URL]
I want to have 2 variables having the links and content separate - example:
[URL]
I guess it can be done via String functions or regular expression.
Add Listener (event) To A Program?
Nov 14, 2011I'm writing an add on to an existing program through an API, but the event I need doesn't exist. How do i go about creating my own event in VB.
I'm writing a plug-in for a program called promis-e that works in conjunction with Microstation CAD platform to generate electrical drawings.I need to call a function I wrote when a new symbol is added to the active drawing, but that event isn't available in promise, so I was wondering if I could write my own event in Microstation that calls that function ?
Add Winsock Listener In Program?
Nov 1, 2009How to add winsock listener in Vb 2008
View 1 RepliesCommunications :: TcpClient/Listener ?
Jan 16, 2010I'm having a hard time getting the fundamentals down about these TCP Socket classes.
When you use TcpClient, you can set the IP Address or domain name to connect to the server end of the socket. I see examples that use "localhost" as the first parameter for TcpClient. Is this just a broadcast over the network to find the server that has a TcpListener listening on the dictated port of the second parameter of the TcpClient declaration? With any IP address for TcpClient (I realize that's an option, though), how does "localhost" find the TcpListener server?
Stop A Listener Properly?
Jan 22, 2012When I stop my TCP Listener by the Stop command, I always get an error because I use BeginAcceptTcpClient to accept the clients. How can I stop a listener properly?
View 1 RepliesThreading Clients Using A Tcp Listener?
Dec 2, 2009(Using vb 2008 express.)
I am trying to create a server to send clients text on request. I am using a tcp listener to accept clients then send each client to a thread in a threadpool which deals with each client's request then closes the client connection. It seems to work fine but I would like to know how it works. Using the listen loop below I cant help feeling I should be sending some values to the threaded sub. How does it know which client each thread is dealing with?
Sub ListenLoop()
Looop:
Client = Server.AcceptTcpClient
[Code].....
Use Tcpclient And Listener To Use A No-ip Host?
Apr 27, 2009is there a way to use my tcpclient and listener to use a no-ip host because i am on a laptop
View 5 RepliesChat Server / Listener Program
Dec 16, 2010I am trying to write a program that has a server/listener program and then 2 client programs, the 2 client programs are supposed to be able to chat with each other. Can anyone point me in the right direction on this?
View 4 RepliesEvent Driven Tcp Listener Method?
Aug 23, 2011I'm another newbie with VB (2010) so please bear with me. I am attempting to make a method that is event driven by data threads on the Ethernet port. Simply put, the method is to wait until a data thread from a "Control By Web" 5-input device sends an "information update" data packet to the application, with the application then processing the information. This application is on a private, well controlled network, with no access to the internet. I have a method that is working right now reading data packets when invoked with a timer (see code below) but I really need it to be event driven.
' this is added at the top of the class
Dim tcplistener As New TcpListener(IPAddress.Any, ip_port)
'this is added in the "form1_load" module
[code]....
How To Use Infinite Loops In Event Listener
May 1, 2012I am trying to build a small window component, which has two buttons.
When I click on the Start button, my code needs to establish the connection to server and keep checking the status (this is infinite loop, I have a boolean global variable which is set to true and based on this loop will work).
When I click on stop button, it should stop checking (I will make global variable to false).
I have code to check my server status.
However, since it is kind of infinite loop, moment i click on start, window form is not taking any other actions, since the control not coming out of event listener of start button.
I have many scenarios like this kind of infinite loops.
How to resolve this, what kind of approch should i follow in vb.
SMTP Listener Corrupting HTML?
Jan 30, 2009I have an SMTP listener that accepts incoming connections and routes the message to a folder using FileStream. I have to add x-sender: email@address.com and x-receiver: email@address.com to the first two lines of the file so it can be put in a pickup folder for relay later. It seems as though this way of handling the incoming stream is corrupting the HTML in the email message body. Does anyone have a clue what I am doing wrong or a suggestion that would point me in the right direction regarding what I am missing?
View 7 RepliesVb2008 Creating A Port Listener?
Oct 9, 2009I am using vb2008. I am creating a port listener. When I test the listener I get an exception in the code as shown below.I send one record through ("Hello") . When it tries to read again I get the error. This read would result in EOF. When this happens, shouldn't i go to 0? Instead it keeps its previous value of 5 which is the number of characters in "Hello"
m_blnStop = False
Dim server As TcpListener
server = Nothing
Try
[code]....
VS 2008 TCP Listener - Only Responds To 1st Message?
Apr 8, 2009OK this is my third thread on TCP problems and the first two I managed to figure out for myself within 10 mins of posting before anyone had a chance to reply so lets see if it works again - failing that if you have any advice I'd be most grateful.
I have a server app which should be sitting and listening for messages on one port (4000) and then processing requests and sending data back via another TCP client on a different port (4001). My code is based on someone else's example and it works fine sending and receiving the first message, however after the first message the listener seems to stop listening and never gets any further messages.
Am I misunderstanding how they work? After I get the first message do I need to close the listener and create a new one, or should the same listener keep working until I close it?
[Code]...
TCP Send String - No Example Of A Client With A Tcp Listener Built In?
Dec 23, 2011I create a small program witch is a tcp client.I sent a asqii string to a tcp device over ethernet thads acts like a server.As soon as the device recieves the input string it will respond back with response data. The problem is i am not getting any response data back from the divice. The lenght of the string is max. 30 characters.When a use WireShark i see the reponse, but VB read nothing.I have read many threads with explenations about server/client connections but no example of a client with a tcp listener built in.I think thad the stream read is to late after the send instruction.
View 2 RepliesSMTP Mail Server Coding - Write A Port Listener And Display The Message In A Text Box?
Jan 31, 2012I am looking to make a SMTP (Port 25) listener to listen in and accept incoming mail, look at the message source, make changes if needed, and retransmit the message out another port. This iwll make it act like a sort-of intermediary service.how one would write a port listener in VB.net, that could listen in on the port, and display the message in a text box (the whole source, headers and all, since that's what the mail comes in as anyway).
View 3 RepliesInternet Radio Listener - Display Live Artist / Song Info From Several Stations On A Windows Form?
Jan 22, 2010but is there some way to create a program that would be able to listen to internet radio and possibly display live artist/song info from several stations on a windows form? Has anybody done anything like this or have any ideas as to how to tackle this?
View 1 RepliesMake A Basic Client And Listener Chat Room - : Error1Method 'Private Sub CliInfo' Does Not Have A Signature Compatible With Delegate
Dec 9, 2009Im trying to make a basic client and listener chat room but im having problems with method invoker.
Error: Error1Method 'Private Sub CliInfo(CliMess As String)' does not have a signature compatible with delegate 'Delegate Sub MethodInvoker()'
Imports System.Net.Sockets
Imports System.Threading
Imports System.Text[code]......
VS 2010 : HTTP Webrequest Post Inside HTTP Webrequest Post?
Oct 6, 2011Im trying to create a software which can post into yahoogroups.I've done trying to log in yahoomail but my problem is when I am going to post in yahoogroups, I am turning back in to yahoo log in page.
Here's my code so far:
Quote:
Imports System.IO
Imports System.Net
Imports System.Text
[code]....
Sockets - Check That If Another Computer In The Network Send Some String Data To The Listener Computer?
Mar 19, 2012i have a task to create a TCP Server (a program that is listening on its network card interfaces for incoming data stream).I have search on the internet and i found that i can use two methods : Socket or TCPListener class.I have created an example for Socket class, but i wondering how could i test it? I need to check that if another computer in the network send some string data to the listener computer , then this message should be displayed.Here is the example from microsoft that i am using for TCP Server using Socket:
Public Shared Sub Main()
' Data buffer for incoming data.
Dim data = nothingc[code]....
But it does not work because of the PORT setting.If in the TCP Server i have "Dim localEndPoint As New IPEndPoint(ipAddress, 0)" the client crashes, but if i change the port from any (0) to 11000 for example,the client works fine.Do you know why?
Later edit2:Maybe i should have started with this question:Which method is recommended for my scope?asynchronous or synchronous method ?
Adding A Window Listener To A WPF-Window?
Jan 15, 2010How can I add an window/event listener/handler to a wpf-window? I want to know, if the user wants to close the window.
View 2 RepliesJavascript - Register A Client-side Event Listener On A Server-side Event?
Dec 28, 2011Ultimately, what I want to accomplish is an AJAX-based messaging system. I already have a database table for messages, and an ASPX to add new messages (and declare old messages no longer relevant).
The current messaging system simply polls the server every 15 seconds, and re-pulls the current message set.
What I am looking to do is: On $(document).ready(), register an ajax callback function that listens for a server-side event (e.g., MessagesUpdated) On table insert/update, fire MessagesUpdated server-side.
This way, whenever the table is updated (or new records added), any clients listening know that new data is available and can re-poll the server then.
Ideally, I'd also like to make the new data available as an event argument (to minimize re-polling the db).
I can find references to something like this in other languages, but I cannot find any actual code examples to get me started.
Assuming this is possible to do via .Net, can anyone help get me started on this?
I'm using the 2.0 Framework. Also while I added a VB.Net tag, I can read C# reasonably well, so please feel free to post in either language.
.net - WCF Via HTTP GET?
Jul 7, 2011I have a WCF service which I'm trying to access via a browser. It works fine via the test client, but my breakp[oints are not called when using a browser. My web.config has
<system.serviceModel>
<client>
<endpoint address="http://localhost:84/BillService.svc"
[code].....