Tools/WebServer.ps1
|
function Engine { param ( [Parameter()] [ValidateNotNullOrEmpty()] [Alias('t')] [string] $Engine, [Parameter()] [Alias('s')] [scriptblock] $ScriptBlock = $null, [Parameter()] [Alias('ext')] [string] $Extension ) if ([string]::IsNullOrWhiteSpace($Extension)) { $Extension = $Engine.ToLowerInvariant() } $PodeContext.Server.ViewEngine.Engine = $Engine.ToLowerInvariant() $PodeContext.Server.ViewEngine.Extension = $Extension $PodeContext.Server.ViewEngine.Script = $ScriptBlock $PodeContext.Server.ViewEngine.IsDynamic = ($Engine -ine 'html') } function Start-PodeWebServer { param ( [switch] $Browse ) # setup any inbuilt middleware $inbuilt_middleware = @( (Get-PodeAccessMiddleware), (Get-PodeLimitMiddleware), (Get-PodePublicMiddleware), (Get-PodeRouteValidateMiddleware), (Get-PodeBodyMiddleware), (Get-PodeQueryMiddleware) ) $PodeContext.Server.Middleware = ($inbuilt_middleware + $PodeContext.Server.Middleware) # work out which endpoints to listen on $endpoints = @() $PodeContext.Server.Endpoints | ForEach-Object { # get the protocol $_protocol = (iftet $_.Ssl 'https' 'http') # get the ip address $_ip = "$($_.Address)" if ($_ip -ieq '0.0.0.0') { $_ip = '*' } # get the port $_port = [int]($_.Port) if ($_port -eq 0) { $_port = (iftet $_.Ssl 8443 8080) } # if this endpoint is https, generate a self-signed cert or bind an existing one if ($_.Ssl) { $addr = (iftet $_.IsIPAddress $_.Address $_.HostName) Set-PodeCertificate -Address $addr -Port $_port -Certificate $_.Certificate.Name -Thumbprint $_.Certificate.Thumbprint } # add endpoint to list $endpoints += @{ Prefix = "$($_protocol)://$($_ip):$($_port)/" HostName = "$($_protocol)://$($_.HostName):$($_port)/" } } # create the listener on http and/or https $listener = New-Object System.Net.HttpListener try { # start listening on defined endpoints $endpoints | ForEach-Object { $listener.Prefixes.Add($_.Prefix) } $listener.Start() } catch { $Error[0] | Out-Default if ($null -ne $Listener) { if ($Listener.IsListening) { $Listener.Stop() } dispose $Listener -Close } throw $_.Exception } # script for listening out for incoming requests $listenScript = { param ( [Parameter(Mandatory=$true)] [ValidateNotNull()] $Listener, [Parameter(Mandatory=$true)] [int] $ThreadId ) try { while ($Listener.IsListening -and !$PodeContext.Tokens.Cancellation.IsCancellationRequested) { # get request and response $context = (await $Listener.GetContextAsync()) try { $request = $context.Request $response = $context.Response # reset event data $WebEvent = @{ OnEnd = @() Auth = @{} Response = $response Request = $request Lockable = $PodeContext.Lockable Path = ($request.RawUrl -isplit "\?")[0] Method = $request.HttpMethod.ToLowerInvariant() Protocol = $request.Url.Scheme Endpoint = $request.Url.Authority ContentType = $request.ContentType ErrorType = $null Cookies = $request.Cookies PendingCookies = @{} } # set pode in server response header Set-PodeServerHeader # add logging endware for post-request Add-PodeLogEndware -WebEvent $WebEvent # invoke middleware if ((Invoke-PodeMiddleware -WebEvent $WebEvent -Middleware $PodeContext.Server.Middleware -Route $WebEvent.Path)) { # get the route logic $route = Get-PodeRoute -HttpMethod $WebEvent.Method -Route $WebEvent.Path -Protocol $WebEvent.Protocol ` -Endpoint $WebEvent.Endpoint -CheckWildMethod # invoke route and custom middleware if ((Invoke-PodeMiddleware -WebEvent $WebEvent -Middleware $route.Middleware)) { Invoke-ScriptBlock -ScriptBlock $route.Logic -Arguments $WebEvent -Scoped } } } catch { status 500 -e $_ $Error[0] | Out-Default } # invoke endware specifc to the current web event $_endware = ($WebEvent.OnEnd + @($PodeContext.Server.Endware)) Invoke-PodeEndware -WebEvent $WebEvent -Endware $_endware # close response stream (check if exists, as closing the writer closes this stream on unix) if ($response.OutputStream) { dispose $response.OutputStream -Close -CheckNetwork } } } catch [System.OperationCanceledException] {} catch { $Error[0] | Out-Default throw $_.Exception } } # start the runspace for listening on x-number of threads 1..$PodeContext.Threads | ForEach-Object { Add-PodeRunspace -Type 'Main' -ScriptBlock $listenScript ` -Parameters @{ 'Listener' = $listener; 'ThreadId' = $_ } } # script to keep web server listening until cancelled $waitScript = { param ( [Parameter(Mandatory=$true)] [ValidateNotNull()] $Listener ) try { while ($Listener.IsListening -and !$PodeContext.Tokens.Cancellation.IsCancellationRequested) { Start-Sleep -Seconds 1 } } catch [System.OperationCanceledException] {} catch { $Error[0] | Out-Default throw $_.Exception } finally { if ($null -ne $Listener) { if ($Listener.IsListening) { $Listener.Stop() } dispose $Listener -Close } } } Add-PodeRunspace -Type 'Main' -ScriptBlock $waitScript -Parameters @{ 'Listener' = $listener } # state where we're running Write-Host "Listening on the following $($endpoints.Length) endpoint(s) [$($PodeContext.Threads) thread(s)]:" -ForegroundColor Yellow $endpoints | ForEach-Object { Write-Host "`t- $($_.HostName)" -ForegroundColor Yellow } # browse to the first endpoint, if flagged if ($Browse) { Start-Process $endpoints[0].HostName } } |