PowerShellを使用してWebサイトからSSL証明書をダウンロードするにはどうすればよいですか？
PowerShellを使用して、たとえば https://www.Outlook.com からSSL証明書をダウンロードしたいと思います。出来ますか？誰かが私を助けることができますか？
ServicePointオブジェクトのHttpWebRequestプロパティを使用して、公開鍵を取得できるはずです。この必要な情報は、問題のサイトにhttpリクエストを送信すると入力されます。
信頼できない証明書を持つサイトにリクエストが行われると、GetResponseメソッドは例外をスローしますが、ServicePointにはまだCertificateが含まれているため、WebExceptionステータスが信頼の失敗の場合。
したがって、次のようなものが機能するはずです。
_function Get-PublicKey
{
[OutputType([byte[]])]
PARAM (
[Uri]$Uri
)
if (-Not ($uri.Scheme -eq "https"))
{
Write-Error "You can only get keys for https addresses"
return
}
$request = [System.Net.HttpWebRequest]::Create($uri)
try
{
#Make the request but ignore (dispose it) the response, since we only care about the service point
$request.GetResponse().Dispose()
}
catch [System.Net.WebException]
{
if ($_.Exception.Status -eq [System.Net.WebExceptionStatus]::TrustFailure)
{
#We ignore trust failures, since we only want the certificate, and the service point is still populated at this point
}
else
{
#Let other exceptions bubble up, or write-error the exception and return from this method
throw
}
}
#The ServicePoint object should now contain the Certificate for the site.
$servicePoint = $request.ServicePoint
$key = $servicePoint.Certificate.GetPublicKey()
Write-Output $key
}
Get-PublicKey -Uri "https://www.bing.com"
Get-PublicKey -Uri "https://www.facebook.com"
_メソッドを何度も呼び出したい場合で、同じアドレスを持つものがある場合は、ServicePointManager.FindServicePoint(System.Uri)メソッドを使用して関数を改善することをお勧めします。これは、リクエストが既に行われている場合にキャッシュされたバージョンを返すためです。そのサイトに。したがって、サービスポイントに情報が入力されているかどうかを確認できます。そうでない場合は、Webリクエストを行います。ある場合は、既存の情報を使用して、httpリクエストを保存します。
より多くの知識を共有するには:-)
$webRequest = [Net.WebRequest]::Create("https://www.Outlook.com")
try { $webRequest.GetResponse() } catch {}
$cert = $webRequest.ServicePoint.Certificate
$bytes = $cert.Export([Security.Cryptography.X509Certificates.X509ContentType]::Cert)
set-content -value $bytes -encoding byte -path "$pwd\Outlook.Com.cer"
私の同僚のマイケルJ.ライオンズはこれを私と共有しました。
function Get-WebsiteCertificate {
[CmdletBinding()]
param (
[Parameter(Mandatory=$true)] [System.Uri]
$Uri,
[Parameter()] [System.IO.FileInfo]
$OutputFile,
[Parameter()] [Switch]
$UseSystemProxy,
[Parameter()] [Switch]
$UseDefaultCredentials,
[Parameter()] [Switch]
$TrustAllCertificates
)
try {
$request = [System.Net.WebRequest]::Create($Uri)
if ($UseSystemProxy) {
$request.Proxy = [System.Net.WebRequest]::DefaultWebProxy
}
if ($UseSystemProxy -and $UseDefaultCredentials) {
$request.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials
}
if ($TrustAllCertificates) {
# Create a compilation environment
$Provider=New-Object Microsoft.CSharp.CSharpCodeProvider
$Compiler=$Provider.CreateCompiler()
$Params=New-Object System.CodeDom.Compiler.CompilerParameters
$Params.GenerateExecutable=$False
$Params.GenerateInMemory=$True
$Params.IncludeDebugInformation=$False
$Params.ReferencedAssemblies.Add("System.DLL") > $null
$TASource=@'
namespace Local.ToolkitExtensions.Net.CertificatePolicy {
public class TrustAll : System.Net.ICertificatePolicy {
public TrustAll() {
}
public bool CheckValidationResult(System.Net.ServicePoint sp,
System.Security.Cryptography.X509Certificates.X509Certificate cert,
System.Net.WebRequest req, int problem) {
return true;
}
}
}
'@
$TAResults=$Provider.CompileAssemblyFromSource($Params,$TASource)
$TAAssembly=$TAResults.CompiledAssembly
## We now create an instance of the TrustAll and attach it to the ServicePointManager
$TrustAll=$TAAssembly.CreateInstance("Local.ToolkitExtensions.Net.CertificatePolicy.TrustAll")
[System.Net.ServicePointManager]::CertificatePolicy=$TrustAll
}
$response = $request.GetResponse()
$servicePoint = $request.ServicePoint
$certificate = $servicePoint.Certificate
if ($OutputFile) {
$certBytes = $certificate.Export(
[System.Security.Cryptography.X509Certificates.X509ContentType]::Cert
)
[System.IO.File]::WriteAllBytes( $OutputFile, $certBytes )
$OutputFile.Refresh()
return $OutputFile
} else {
return $certificate
}
} catch {
Write-Error "Failed to get website certificate. The error was '$_'."
return $null
}
<#
.SYNOPSIS
Retrieves the certificate used by a website.
.DESCRIPTION
Retrieves the certificate used by a website. Returns either an object or file.
.PARAMETER Uri
The URL of the website. This should start with https.
.PARAMETER OutputFile
Specifies what file to save the certificate as.
.PARAMETER UseSystemProxy
Whether or not to use the system proxy settings.
.PARAMETER UseDefaultCredentials
Whether or not to use the system logon credentials for the proxy.
.PARAMETER TrustAllCertificates
Ignore certificate errors for certificates that are expired, have a mismatched common name or are self signed.
.EXAMPLE
PS C:\> Get-WebsiteCertificate "https://www.gmail.com" -UseSystemProxy -UseDefaultCredentials -TrustAllCertificates -OutputFile C:\gmail.cer
.INPUTS
Does not accept pipeline input.
.OUTPUTS
System.Security.Cryptography.X509Certificates.X509Certificate, System.IO.FileInfo
#>
}
function Import-Certificate {
<#
.SYNOPSIS
Imports certificate in specified certificate store.
.DESCRIPTION
Imports certificate in specified certificate store.
.PARAMETER CertFile
The certificate file to be imported.
.PARAMETER StoreNames
The certificate store(s) in which the certificate should be imported.
.PARAMETER LocalMachine
Using the local machine certificate store to import the certificate
.PARAMETER CurrentUser
Using the current user certificate store to import the certificate
.PARAMETER CertPassword
The password which may be used to protect the certificate file
.EXAMPLE
PS C:\> Import-Certificate C:\Temp\myCert.cer
Imports certificate file myCert.cer into the current users personal store
.EXAMPLE
PS C:\> Import-Certificate -CertFile C:\Temp\myCert.cer -StoreNames my
Imports certificate file myCert.cer into the current users personal store
.EXAMPLE
PS C:\> Import-Certificate -Cert $certificate -StoreNames my -StoreType LocalMachine
Imports the certificate stored in $certificate into the local machines personal store
.EXAMPLE
PS C:\> Import-Certificate -Cert $certificate -SN my -ST Machine
Imports the certificate stored in $certificate into the local machines personal store using alias names
.EXAMPLE
PS C:\> ls cert:\currentUser\TrustedPublisher | Import-Certificate -ST Machine -SN TrustedPublisher
Copies the certificates found in current users TrustedPublishers store to local machines TrustedPublisher using alias
.INPUTS
System.String|System.Security.Cryptography.X509Certificates.X509Certificate2, System.String, System.String
.OUTPUTS
NA
.NOTES
NAME: Import-Certificate
AUTHOR: Patrick Sczepanksi (Original anti121)
VERSION: 20110502
#Requires -Version 2.0
.LINK
http://poshcode.org/2643
http://poshcode.org/1937 (Link to original script)
#>
[CmdletBinding()]
param
(
[Parameter(ValueFromPipeline=$true,Mandatory=$true, Position=0, ParameterSetName="CertFile")]
[System.IO.FileInfo]
$CertFile,
[Parameter(ValueFromPipeline=$true,Mandatory=$true, Position=0, ParameterSetName="Cert")]
[System.Security.Cryptography.X509Certificates.X509Certificate2]
$Cert,
[Parameter(Position=1)]
[Alias("SN")]
[string[]] $StoreNames = "My",
[Parameter(Position=2)]
[Alias("Type","ST")]
[ValidateSet("LocalMachine","Machine","CurrentUser","User")]
[string]$StoreType = "CurrentUser",
[Parameter(Position=3)]
[Alias("Password","PW")]
[string] $CertPassword
)
begin
{
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Security")
}
process
{
switch ($pscmdlet.ParameterSetName) {
"CertFile" {
try {
$Cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2 $($CertFile.FullName),$CertPassword
}
catch {
Write-Error ("Error reading '$CertFile': $_ .") -ErrorAction:Continue
}
}
"Cert" {
}
default {
Write-Error "Missing parameter:`nYou need to specify either a certificate or a certificate file name."
}
}
switch -regex ($storeType) {
"Machine$" { $StoreScope = "LocalMachine" }
"User$" { $StoreScope = "CurrentUser" }
}
if ( $Cert ) {
$StoreNames | ForEach-Object {
$StoreName = $_
Write-Verbose " [Import-Certificate] :: $($Cert.Subject) ($($Cert.Thumbprint))"
Write-Verbose " [Import-Certificate] :: Import into cert:\$StoreScope\$StoreName"
if (Test-Path "cert:\$StoreScope\$StoreName") {
try
{
$store = New-Object System.Security.Cryptography.X509Certificates.X509Store $StoreName, $StoreScope
$store.Open([System.Security.Cryptography.X509Certificates.OpenFlags]::ReadWrite)
$store.Add($Cert)
if ( $CertFile ) {
Write-Verbose " [Import-Certificate] :: Successfully added '$CertFile' to 'cert:\$StoreScope\$StoreName'."
} else {
Write-Verbose " [Import-Certificate] :: Successfully added '$($Cert.Subject) ($($Cert.Thumbprint))' to 'cert:\$StoreScope\$StoreName'."
}
}
catch
{
Write-Error ("Error adding '$($Cert.Subject) ($($Cert.Thumbprint))' to 'cert:\$StoreScope\$StoreName': $_ .") -ErrorAction:Continue
}
if ( $store ) {
$store.Close()
}
}
else {
Write-Warning "Certificate store '$StoreName' does not exist. Skipping..."
}
}
} else {
Write-Warning "No certificates found."
}
}
end {
Write-Host "Finished importing certificates."
}
}
私はこれらの関数を次のようにうまく使用しました：
##Import self-signed certificate
Get-WebsiteCertificate $baseUrl local.cer -trust | Out-Null
Import-Certificate -certfile local.cer -SN Root | Out-Null