Check if password-protected web file exists - powershell

Question

I need to check to see if a password-protected web file exists in a directory.
I keep getting a (401) Unauthorized error so, Lines 5-6 are not working.
Script Code:
$currdate = Get-Date -format "yyyyMMdd"
$Username = "username"
$Password = "password"
$url = "http://some.website/" + $currdate + "/somedirectory/some.file.txt"
$WebClient = New-Object System.Net.WebClient
$WebClient.Credentials = New-Object System.Net.Networkcredential($Username, $Password)
$HTTP_Request = [System.Net.WebRequest]::Create($url)
$HTTP_Response = $HTTP_Request.GetResponse()
$HTTP_Status = [int]$HTTP_Response.StatusCode
If ($HTTP_Status -eq 200) {
Write-Host "File exists!"
}
Else {
Write-Host "File does not exist..."
}
$HTTP_Response.Close()
What am I doing wrong?

Answer 1

You use two objects WebClient and WebRequest, you need only one.
You set the credential to WebClient, but you do response by WebRequest without credential.
Modify your code as:
$currdate = Get-Date -format "yyyyMMdd"
$Username = "xxxxx"
$Password = "xxxxxx"
$url = "http://some.website/" + $currdate + "/somedirectory/some.file.txt"
# comment these lines,you use WebRequest
#$WebClient = New-Object System.Net.WebClient
#$WebClient.Credentials = New-Object System.Net.Networkcredential($Username, $Password)
$HTTP_Request = [System.Net.WebRequest]::Create($url)
#add this line
$HTTP_Request.Credentials = new-object system.net.networkcredential($Username, $Password)
$HTTP_Response = $HTTP_Request.GetResponse()
$HTTP_Status = [int]$HTTP_Response.StatusCode
If ($HTTP_Status -eq 200) {
Write-Host "File exists!"
}
Else {
Write-Host "File does not exist..."
}
$HTTP_Response.Close()