Get-SAMLMetadata.ps1
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.SYNOPSIS This script returns some of the metadata information provided by a remote identity provider. .DESCRIPTION This script returns some of the metadata information provided by a remote identity provider. .PARAMETER ADFSHostname ADFS server hostname, this DNS name is used to connect to well known federation metadata URL https://$ADFSHostname/FederationMetadata/2007-06/FederationMetadata.xml Default value: None Mandatory: Either this value or MetadataURL must be specified .PARAMETER MetadataURL URL where metadata is stored. If this URL is set, ADFSHostname paramater is ignored. Default value: None Mandatory: Either this value or ADFSHostname must be specified .PARAMETER Output Specfies which part of metadata to return. "WS-Fed-WebSSO-Config" data includes: ADFS/STS Identifier aka /adfs/services/trust WS Federation ADFS/STS URL aka /adfs/ls Service display name Signing Certificates "SAML2-WebSSO-Config" data includes: ADFS/STS Identifier aka /adfs/services/trust SingleLogoutServices Binding / URL of Single Logout Endpoints SingleSignOnServices Binding / URL of SSO Endpoints Signing Certificates "XML-File": Saves metadata to XML file named METADATA_$Hostname_yyyy-MM-dd.xml Default value: WS-Fed-WebSSO-Config Mandatory: No .NOTES Author : Martin Rublik (martin.rublik@bspc.sk) Created : 2018-07-10 Version : 1.2 Changelog: V 1.0 (2016-03-23) - intial version V 1.1 (2017-09-19) - added verbos information and encryption certificates V 1.2 (2018-07-10) - added insecure option, output to file License: The MIT License (MIT) Copyright (c) 2016 Martin Rublik Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. .EXAMPLE .\GetSAMLMetadata.ps1 -ADFSHostname adfs.example.com Return WS Federation related data from adfs.example.com .EXAMPLE $certs = .\GetSAMLMetadata.ps1 -ADFSHostname adfs.example.com | Select-Object -ExpandProperty SigningCertificates Return signing certificates for adfs.example.com with WS-Federation support. These certificates can be used in configuration scripts. .EXAMPLE $certs = .\GetSAMLMetadata.ps1 -ADFSHostname adfs.example.com -Out SAML2-WebSSO-Config | Select-Object -ExpandProperty SigningCertificates Return signing certificates for adfs.example.com with WS-Federation support. These certificates can be used in configuration scripts. .EXAMPLE .\GetSAMLMetadata.ps1 -ADFSHostname adfs.example.com -Out SAML2-WebSSO-Config | Select-Object -ExpandProperty SigningCertificates | foreach { Set-Content -Encoding Byte -Path "SIGN-$($_.Thumbprint).crt" $_.RawData } Save token signing certificates to filesystem. #> function Get-SAMLMetadata { [cmdletbinding(ConfirmImpact = 'Low')] param( [string] $ADFSHostname, [string] $MetadataURL, [ValidateSet("WS-Fed-WebSSO-Config","SAML2-WebSSO-Config","XML-File",IgnoreCase = $true)] [string] $Output="WS-Fed-WebSSO-Config", [switch] $Insecure ) try { #Add-Type -AssemblyName "System.IdentityModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" if (-not $MetadataURL) { $MetadataURL="https://$ADFSHostname/FederationMetadata/2007-06/FederationMetadata.xml" } if ($Insecure) { if (-not ([System.Management.Automation.PSTypeName]'ServerCertificateValidationCallback').Type) { $certCallback=@" using System; using System.Net; using System.Net.Security; using System.Security.Cryptography.X509Certificates; public class ServerCertificateValidationCallback { public static void Ignore() { if(ServicePointManager.ServerCertificateValidationCallback ==null) { ServicePointManager.ServerCertificateValidationCallback += delegate ( Object obj, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors ) { return true; }; } } } "@ Add-Type $certCallback } [ServerCertificateValidationCallback]::Ignore(); Write-Error "Switching to insecure channel, metadata is not verified at all" Write-Warning "Downloading from:`n $MetadataURL" }else { Write-Warning "Caution, the metadata is verified strictly on SSL/TLS transport level, XML digital signature is not checked. `nDownloading from:`n $MetadataURL" } if ( $Output.ToLower().Equals("xml-file") ) { $Uri = New-Object System.Uri($MetadataURL) $FileName = "METADATA_$($Uri.Host)_$((get-date).ToString("yyyy-MM-dd")).xml" Invoke-WebRequest -Uri $MetadataURL -OutFile $FileName Write-Output "Data written to $(Get-Location)\$FileName" return } $metadataResponse = Invoke-WebRequest -Uri $MetadataURL $metadataSerializer = New-Object System.IdentityModel.Metadata.MetadataSerializer $metadataSerializer.CertificateValidationMode = [System.ServiceModel.Security.X509CertificateValidationMode]::None $metadataResponse.RawContentStream.Position=0 $entityDescriptor = $metadataSerializer.ReadMetadata($metadataResponse.RawContentStream); $STSDesc = $entityDescriptor.RoleDescriptors | Where-Object {$_.gettype().Name -eq "SecurityTokenServiceDescriptor"} $IDPSSODesc = $entityDescriptor.RoleDescriptors | Where-Object {$_.gettype().Name -eq "IdentityProviderSingleSignOnDescriptor"} $result=New-Object PSObject $result | Add-Member -MemberType NoteProperty Id -Value $entityDescriptor.EntityId.Id -Force $result | Add-Member -MemberType NoteProperty Organization -Value $entityDescriptor.Organization -Force if ( $Output.ToLower().Equals("ws-fed-websso-config") ) { $result | Add-Member -MemberType NoteProperty ServiceDisplayName -Value $STSDesc.ServiceDisplayName -Force $passiveURLs=@(); if ($STSDesc.PassiveRequestorEndpoints.Count -gt 0) { foreach($reference in $STSDesc.PassiveRequestorEndpoints) {$passiveURLs+=$reference.Uri} } $result | Add-Member -MemberType NoteProperty PassiveRequestorEndpoints -Value $passiveURLs -Force $singingCerts=@(); if ($STSDesc.Keys.Count -gt 0) { foreach($key in $STSDesc.Keys) { try { if ($key.Use -eq "Signing") { # http://www.leeholmes.com/blog/2007/06/19/invoking-generic-methods-on-non-generic-classes-in-powershell/ $genericFindRawCertMethod = [System.IdentityModel.Tokens.SecurityKeyIdentifier].GetMethod("Find"); $closedFindRawCertMethod = $genericFindRawCertMethod.MakeGenericMethod([System.IdentityModel.Tokens.X509RawDataKeyIdentifierClause]); $keyInfo = $closedFindRawCertMethod.Invoke($key.KeyInfo,$null); $cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2(,$keyInfo.GetX509RawData()) $singingCerts+=$cert } }catch { # TODO err handling Write-Warning $_.Exception.Message } } } $result | Add-Member -MemberType NoteProperty SigningCertificates -Value $singingCerts -Force } if ( $Output.ToLower().Equals("saml2-websso-config")) { $result | Add-Member -MemberType NoteProperty SingleLogoutServices -Value $IDPSSODesc.SingleLogoutServices -Force $result | Add-Member -MemberType NoteProperty SingleSignOnServices -Value $IDPSSODesc.SingleSignOnServices -Force $singingCerts=@(); $encryptionCerts=@(); if ($IDPSSODesc.Keys.Count -gt 0) { foreach($key in $IDPSSODesc.Keys) { try { if ($key.Use -eq "Signing") { # http://www.leeholmes.com/blog/2007/06/19/invoking-generic-methods-on-non-generic-classes-in-powershell/ $genericFindRawCertMethod = [System.IdentityModel.Tokens.SecurityKeyIdentifier].GetMethod("Find"); $closedFindRawCertMethod = $genericFindRawCertMethod.MakeGenericMethod([System.IdentityModel.Tokens.X509RawDataKeyIdentifierClause]); $keyInfo = $closedFindRawCertMethod.Invoke($key.KeyInfo,$null); $cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2(,$keyInfo.GetX509RawData()) $singingCerts+=$cert } if ($key.Use -eq "Encryption") { # http://www.leeholmes.com/blog/2007/06/19/invoking-generic-methods-on-non-generic-classes-in-powershell/ $genericFindRawCertMethod = [System.IdentityModel.Tokens.SecurityKeyIdentifier].GetMethod("Find"); $closedFindRawCertMethod = $genericFindRawCertMethod.MakeGenericMethod([System.IdentityModel.Tokens.X509RawDataKeyIdentifierClause]); $keyInfo = $closedFindRawCertMethod.Invoke($key.KeyInfo,$null); $cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2(,$keyInfo.GetX509RawData()) $encryptionCerts+=$cert } }catch { Write-Warning $_.Exception.Message } } } $result | Add-Member -MemberType NoteProperty SigningCertificates -Value $singingCerts -Force $result | Add-Member -MemberType NoteProperty EncryptionCertificates -Value $encryptionCerts -Force } $result }catch { throw $_.Exception } } |