IIS Authentication

Description

Requests users to login to website with NT Account.

More Info

Submitted On
By	Lewis E. Moten III
Level	Beginner
User Rating	5.0 (10 globes from 2 users)
Compatibility	ASP (Active Server Pages)
Category	Security
World	ASP / VbScript
Archive File

Source Code

Dim ObjSite
Call Authenticate(ObjSite)
Sub Authenticate(ByRef pObjSite)
	Dim lLngInstanceID
	Dim lStrMetabasePath
	Dim lBlnContinue
	Dim lBlnLoginFailure
	On Error Resume Next
	lLngInstanceID = Request.ServerVariables("INSTANCE_ID")
	' Programmers Notes ...
	'
	' Metabase Path											Key Type
	' /LM/W3SVC												IIsWebService
	' /LM/W3SVC/N											IIsWebServer
	' /LM/W3SVC/N/ROOT										IIsWebVirtualDir
	' /LM/W3SVC/N/ROOT/WebVirtualDir						IIsWebVirtualDir
	' /LM/W3SVC/N/ROOT/WebVirtualDir/WebDirectory			IIsWebDirectory
	' /LM/W3SVC/N/ROOT/WebVirtualDir/WebDirectory/WebFile	IIsWebFile
	'
	' N = lLngInstanceID
	'
	'
	lStrMetabasePath = Request.ServerVariables("APPL_MD_PATH")
	lStrMetabasePath = Replace(lStrMetabasePath, "/LM/", "IIS://LOCALHOST/", 1, vbTextCompare)
	'
	'
	'
	Set pObjSite = GetObject(lStrMetabasePath)
	If Err = &H800401E4 Or Err = 70 Then
		Response.Status = "401 access denied"
		BlnContinue = False
		BlnLoginFailure = True
	Else
		If Err = 0 Then
			lBlnContinue = True
		Else
			lBlnContinue = False
			lBlnLoginFailure = False
		End If
	End If
	If lBlnLoginFailure Then
		Response.Write "Login Failure.<BR>"
		Response.End
	End If
	If Not lBlnContinue Then
		Response.Write "Can not continue.<BR>"
		Response.End
	End If
End Sub