HttpWebRequest.GetResponse And HttpWebResponse Freezes?

Sep 20, 2011

I'm currently working on making a database driven app without using SQL and instead using a simplistic web directory to store information.Unfortunately after just beginning I hit a rock wall on creating a login screen. As it works right now, every user has a directory and within that directory is file called "access" which has a password. While I'm aware that's it not secure, that's later to come, but right now I'd just like it to work. But the program uses WebRequest to see whether or not there is a directory under the given username, if there is then the username is considered valid and it moves on to check the password- where I start to have trouble. The password verification uses WebRequest and WebResponse as well, using StreamReader to read the access file. At the moment, the password checker only works once in a single program instance. Otherwise trying to check another login will cause the program to hang or freeze when declaring the WebResponse variable (resp).

This is the password verification code (with URL's removed):

Dim Username As String = My.Settings.usrUsername'The function is in a BackgroundWorker so I use My.Settings to communicate with the UI.
Dim Password As String
Dim usrPassword As String = My.Settings.usrPassword

[code]....

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Httpwebresponse = Request.getresponse Freezes?

Dec 13, 2010

I tried using suggestions from other posts for this and still no resolution. When sending a POST request, at times it will just begin to freeze and stall. I set up my code as follows and now basically if I cannot figure out why it is freezing, then itneeds to timeout, handle the exception and restart the function.

For i As Integer = 0 To searchItems.Count - 1
If uri.Scheme = uri.UriSchemeHttps Then
Dim request As HttpWebRequest = HttpWebRequest.Create(url)

[code].....

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i am getting error 401 un authozied, but i am giving correct user name and password of the network user name and password of my system.

i am getting error in this line
HttpWebResponse
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[code]....

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I'm having a ridiculous time trying to get an SMS API working (ZeepMobile, if you're interested) with .NET... I've been around .NET for a few years, but with all this social networking and API stuff, I need to get into the HttpWebRequest a bit. I'm new at it, but not completely new; I was able to hook up my site to Twitter without too much fuss (ie, I was able to modify someone's code to work for me).

Anyways, the way their API works is to send an SMS message, you send them a POST and they respond back to you. I can send it just fine, but every time I do, rather than echo back something helpful to figure out what the error is, I get the Yellow Error Page Of Death (YEPOD) saying something to the effect of "The remote server returned an error: (400) Bad Request." This occurs on my line:

'...creation of httpwebrequest here...'
Dim myWebResponse As WebResponse
myWebResponse = request.GetResponse() '<--- error line

Is there any way to simply receive the error from the server rather than have the webserver throw an exception and give me the YEPOD?

EDIT: Here's my whole code block:

Public Shared Function SendTextMessage(ByVal username As String, _
ByVal txt As String) As String
Dim content As String = "user_id=" + _
username + "&body=" + Current.Server.UrlEncode(txt)

[code]....

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[code]....

Am I missing anything? It stops and throws that error on the line that calls GetResponse()?

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[Code]...

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[Code].....

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Private Sub Download(ByVal stateURI As String, ByVal userName As String, ByVal pWord As String)

[code].....

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[code].....

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[code].....

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Here is the sample code

Public Sub GetData()
Dim Buffer(1024) As Byte
Dim sHttpData As String

[Code].....

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[Code].....

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My Code Here
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Here is My Code
Try
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