feat: MethodSwitchServer ( Fixes #9 )

Author: StartAutomating

Servers/MethodSwitchServer.ps1

@@ -0,0 +1,68 @@
+<#
+.SYNOPSIS
+    Method Switch Server
+.DESCRIPTION
+    A simple server implemented in a single switch.
+
+    Each HTTP Method is processed in a separate case.
+.EXAMPLE
+    ./MethodSwitchServer.ps1
+#>
+param(
+# The rootUrl of the server.  By default, a random loopback address.
+[string]$RootUrl=
+    "http://127.0.0.1:$(Get-Random -Minimum 4200 -Maximum 42000)/",
+
+[Collections.IDictionary]
+$Dictionary = [Ordered]@{
+    "/" = @{ContentType='text/html';Content='<h1>Hello World</h1>'}
+}
+)
+
+$httpListener = [Net.HttpListener]::new()
+$httpListener.Prefixes.Add($RootUrl)
+Write-Warning "Listening on $RootUrl $($httpListener.Start())"
+
+$io = [Ordered]@{ # Pack our job input into an IO dictionary
+    HttpListener = $httpListener ;
+}
+
+# Our server is a thread job
+Start-ThreadJob -ScriptBlock {param([Collections.IDictionary]$io)
+    $psvariable = $ExecutionContext.SessionState.PSVariable
+    foreach ($key in $io.Keys) { # First, let's unpack.
+        if ($io[$key] -is [PSVariable]) { $psvariable.set($io[$key]) }
+        else { $psvariable.set($key, $io[$key]) }
+    }
+    
+    # Listen for the next request
+    :nextRequest while ($httpListener.IsListening) {     
+        $getContext = $httpListener.GetContextAsync()
+        while (-not $getContext.Wait(17)) { }
+        $time = [DateTime]::Now
+        $request, $reply =
+            $getContext.Result.Request, $getContext.Result.Response                
+        switch ($request.httpMethod) {
+            get {                
+                $reply.Close(
+                    $OutputEncoding.GetBytes(
+                        "Getting $($request.Url)"
+                            ), $false)
+            }
+            head {
+                $reply.ContentLength = 0
+                $reply.Close()
+            }
+            default {
+                $timeToRespond = [DateTime]::Now - $time
+                $myReply = "$($request.HttpMethod) $($request.Url) $($timeToRespond)"
+                $reply.Close($OutputEncoding.GetBytes($myReply), $false)
+            }
+        }
+    }            
+} -ThrottleLimit 100 -ArgumentList $IO -Name "$RootUrl" | # Output our job,
+    Add-Member -NotePropertyMembers @{ # but attach a few properties first:
+        HttpListener=$httpListener # * The listener (so we can stop it)
+        IO=$IO # * The IO (so we can change it)
+        Url="$RootUrl" # The URL (so we can easily access it).
+    } -Force -PassThru # Pass all of that thru and return it to you.