[2005] Catching ad url's in browser

I've been building an advanced browser, and it's been fun, here's the latest problem i'm suffering from, :eek2:

When i navigate to a page that uses ad.google.blah, the original url is resolved, then its resolving the ad url as well, is there any way to stop this, maybe by checking the link against the hosts file?

if you need to see code, i'll post it


Redmo

you mean you are trying to prevent embedded content like an ad on a page from displaying?

No, if i wanted to do that, i could remove the content by comparing my url string to the contents of the hosts file, but this is what's happening

url= http://sourceforge.net
resovled url = http://ad.uk.doubleclick.net/adi/N1120.blah blah

is there a way i can stop this from happening?

Redmo

i guess I do need you to post your code. I dont know what you mean by url versus resolved url

Ok, here's what i'm using when go is clicked, there's no checks in there to see what kind of url it is, it just does what its supposed to do

VB Code:

Private Sub tsbGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tsbGo.Click
 
        'make sure string isn't empty
        If tscbAddress.Text = Nothing Then
            MsgBox("Please enter an Address", MsgBoxStyle.MsgBoxHelp, "Warning")
        Else
            'catch about:home
            If CBool(String.Compare(tscbAddress.Text.Substring(0, 6), "about:home")) = True Then
            Else
                'catch about:blank
                If CBool(String.Compare(tscbAddress.Text.Substring(0, 6), "about:blank")) = True Then
 
                Else
                    
                    'finds out if string contains the required http:// 
                    If CBool(String.Compare(tscbAddress.Text.Substring(0, 7), "http://")) = True Then
                        'if it does, then no need to add it
                        If tscbAddress.Text.Contains("http://") Then
                        Else
                            'if it doesn't then we add it here
                            tscbAddress.Text = "http://" & tscbAddress.Text.ToString()
                        End If
                    End If
                End If
            End If
        End If
 
        Try
            tmrBrowser.Enabled = True ' Start the animation
            wbPKMN.Navigate(tscbAddress.Text) ' Get the URL from the control, and send the WebBrowser to fetch and display it
        Catch ex As UriFormatException
            nwWriteLogMsg(ex.Message, ".\nwpps2k6err.log", ex.StackTrace, ex.TargetSite.ToString, ex.Source, ex.HelpLink)
            With frmException
                .lblTitle.Text = "UriFormatException"
                .txtDesc.Text = ex.Message & " Error Number: " & Err.Number
                .lblSource.Text = ex.Source
                .lblTargetMethod.Text = ex.TargetSite.ToString
                .ctbSTrace.Text = ex.StackTrace
                .ShowDialog(Me)
            End With
        End Try
        
 
    End Sub

The code for the keypress event is exactly the same, no point in using different code to do the same thing :)

Its like the page url is sorted, then its treating the ad's as if the go event has been fired again, therefore runnin this again, and putting the new url in the combobox.

Redmo

I still don't see the problem. The code in this routine should only fire when the button is clicked.

Do you have other code in the webbrowsers navigate complete or document complete events?

This is the code for my WebBrowser_completed

VB Code:

Private Sub wbPKMN_Navigated(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserNavigatedEventArgs) Handles wbPKMN.Navigated
 
        tscbAddress.Text = e.Url.AbsoluteUri ' add completed url to tscbaddress text.
 
        'Run test to see if the url is already in the collection
        If tscbAddress.Items.Contains(e.Url.AbsoluteUri) Then
            'if so, then we don't need to add it again
            Exit Sub
        Else
            'add the url to the collection
            tscbAddress.Items.Add(e.Url.AbsoluteUri)
        End If
 
    End Sub

The only other code that's ran on a regular basis is the selectedIndexChanged

VB Code:

Private Sub tscbAddress_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tscbAddress.SelectedIndexChanged
        'Get selected item by casting from object
        Dim SelectedUrl As String = CType(tscbAddress.SelectedItem, String)
        
        
        
        Try
            'If string is empty then exit try
            If SelectedUrl Is Nothing Then
                Exit Sub
            End If
            
            'if string is already in the collection then exit sub
            If tscbAddress.Items.Contains(SelectedUrl) = True Then
                wbPKMN.Navigate(SelectedUrl)
                
            End If
        Catch ex As UriFormatException
            nwWriteLogMsg(ex.Message, ".\nwpps2k6err.log", ex.StackTrace, ex.TargetSite.ToString, ex.Source, ex.HelpLink)
            With frmException
                .lblTitle.Text = "UriFormatException"
                .txtDesc.Text = ex.Message & " Error Number: " & Err.Number
                .lblSource.Text = ex.Source
                .lblTargetMethod.Text = ex.TargetSite.ToString
                .ctbSTrace.Text = ex.StackTrace
                .ShowDialog(Me)
            End With
        End Try
    End Sub

This is baffling, but i'm sure i'll come up with an answer eventually :(

Redmo

I think your problem is not a coding problem. When a web-browser goes to a page that links offsite. It must resolve those links as well. Or in otherwords if the site links to an ad-site for content. That is being resolved after the initial page has been resolved. So what seems to happening is your catching the last resolved URL. Which comes from with in the web-page it self. Just a thought.

Yes, i agree daystar, if i try to catch the offending urls in a trap, i could be tryin to grab 100's of ad urls. I'll figure out a way around it though, give me time :D

Redmo