Functions/Invoke-WebFileRequest.ps1
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# Copyright (c) 2017, the WebKit for Windows project authors. Please see the # AUTHORS file for details. All rights reserved. Use of this source code is # governed by a BSD-style license that can be found in the LICENSE file. <# .Synopsis Gets a remote file therough a web request. .Parameter Url The path to the file. .Parameter DestinationPath The path download to. .Example Invoke-WebFileRequest -Url https://bootstrap.pypa.io/get-pip.py -DestinationPath C:\get-pip.py. #> Function Invoke-WebFileRequest { Param( [Parameter(Mandatory)] [string] $url, [Parameter(Mandatory)] [string] $destinationPath ) # Store off the security protocol $oldSecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol; # Determine the security protocol required $securityProtocol = 0; $uri = [System.Uri]$url; foreach ($protocol in 'tls12', 'tls11', 'tls') { $tcpClient = New-Object Net.Sockets.TcpClient; $tcpClient.Connect($uri.Host, $uri.Port) $sslStream = New-Object Net.Security.SslStream $tcpClient.GetStream(); $sslStream.ReadTimeout = 15000; $sslStream.WriteTimeout = 15000; try { $sslStream.AuthenticateAsClient($uri.Host, $null, $protocol, $false); $supports = $true; } catch { $supports = $false; } $sslStream.Dispose(); $tcpClient.Dispose(); if ($supports) { switch ($protocol) { 'tls12' { $securityProtocol = ($securityProtocol -bor [System.Net.SecurityProtocolType]::Tls12) } 'tls11' { $securityProtocol = ($securityProtocol -bor [System.Net.SecurityProtocolType]::Tls11) } 'tls' { $securityProtocol = ($securityProtocol -bor [System.Net.SecurityProtocolType]::Tls) } } } } [System.Net.ServicePointManager]::SecurityProtocol = $securityProtocol; # Download the file (New-Object System.Net.WebClient).DownloadFile($url, $destinationPath); # Restore the security protocol [System.Net.ServicePointManager]::SecurityProtocol = $oldSecurityProtocol; } |