Design question regarding Web Site Monitoring

[Guest]

I am looking for a VB.NET code that I can use to monitor an independent Web
Site, I would like to do an equivalent of a PING of the site every 5 minutes
or so and make sure that it returns the appropriate login is screen. I then
will use the response to send an email if the site is not responding properly.

I would think that somewhere on the Web this code exists but I could not
find it. Can someone point me to such a site?

 

[Cor Ligthert]

Genojoe,

If it is as simple as you write than you can use the processtart in a timer
event and than every time catch the answer.

I once made a sample for somebody however it is in C# and I don't have it
directly in VBNet. I assume that you can use it.

http://groups-beta.google.com/group/microsoft.public.dotnet.general/msg/cf52223d9d1b82c9?hl=en

If you really cannot translate it, tell it, than I do that.

I hope this helps,

Cor

 

[Guest]

Conversion was easy using:
http://authors.aspalliance.com/aldotnet/examples/translate.aspx

This solution executes PING and gives the standard PING response. Actually,
I want to hit the site with a string such as google.com then read sufficient
information from the return so that I can verify that the correct page is
being displayed. For example, I want to verify that the return page contains
"Please enter your login ID"

I modified your code slightly but when I execute it, it only opens the Web
site and does not return anything to p.StandardOutput.

Here is the code that I used:

Dim p As New Process
Dim pi As New ProcessStartInfo
pi.UseShellExecute = False
pi.RedirectStandardOutput = True
pi.Arguments = "www.google.com"
pi.FileName = "C:\Program Files\Internet Explorer\iexplore.exe"
p.StartInfo = pi
p.Start()
Dim sr As System.IO.StreamReader = p.StandardOutput
Dim s As String = sr.ReadToEnd
MsgBox(s)

 

[Cor Ligthert]

Joe,

I modified your code slightly but when I execute it, it only opens the Web
site and does not return anything to p.StandardOutput.

Because that I gave you the wrong one.



You know how to translate you said.

\\\
Process p = new Process();
ProcessStartInfo pi = new ProcessStartInfo();
pi.UseShellExecute = false;
pi.RedirectStandardOutput = true;
pi.Arguments = "www.google.com";
pi.WorkingDirectory = "C:\\windows\\system32";
//this for nt* computers
pi.FileName = "ping";
p.StartInfo = pi;
p.Start();
System.IO.StreamReader sr = p.StandardOutput;
System.Text.StringBuilder sb = new System.Text.StringBuilder("");
int input = sr.Read();
while (input != -1)
{
sb.Append((char) input);
input = sr.Read();
}
MessageBox.Show(sb.ToString());
///

Sorry

Cor

 

[Guest]

I had your code correctly translated to what you showed below.
Unfortunately, that is not what I want to happen. I do not want to execute
PING. Instead, I want to open the returning HTML code and search to see if
it contains "Please enter your login ID."

The code that I displayed was a modification of your code in an attempt to
accomplish this result.

 

[Cor Ligthert]

Joe,

You can use axwebbrowser or Httprequest for that, there are tons of software
for what you ask on Internet. I have myself as well samples for that, you
can search for those in Google newsgroups. However they fit only a part of
your question. Raw HTML data is not easy to check using a program.

Cor

 

[Guest]

FYI; Here is the code that I found. Inspiration came from:
http://www.w3coder.com

Dim myHttpWebRequest As HttpWebRequest =
CType(WebRequest.Create("http://www.mangia.tzo.com/CMS"), HttpWebRequest)
Dim myHttpWebResponse As HttpWebResponse =
CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
Dim receiveStream As Stream = myHttpWebResponse.GetResponseStream()
Dim encode As System.Text.Encoding =
System.Text.Encoding.GetEncoding("utf-8")
Dim readStream As New StreamReader(receiveStream, encode)
Dim s As String = readStream.ReadToEnd()
Dim i As Integer = InStr(s, "User Name:")

If i > 0 Then
C.MsgInfo("Site contains ""User Name""")
End If

readStream.Close()
myHttpWebResponse.Close()


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