Simple web server built with PowerShell.

httpListener.ps1

# This is a super **SIMPLE** example of how to create a very basic powershell webserver
# 2019-05-18 UPDATE — Created by @19WAS85 and and evalued by @jakobii and the comunity.
# 2021-01-05 UPDATE — Edited by @Sonic853.
param(
    $ip = "localhost",
    $Port = 8080,
    $parentPath = [IO.Path]::Combine([IO.Path]::GetDirectoryName($MyInvocation.MyCommand.Path), "web")
)
# Http Server
$http = [System.Net.HttpListener]::new() 

$DefaultPage = , 'index.html', 'index.htm'

$PSV = $PSVersionTable.PSVersion.ToString()

# Hostname and port to listen on
$http.Prefixes.Add("http://" + $ip + ":$Port/")

# Start the Http Server 
$http.Start()



# Log ready message to terminal 
if ($http.IsListening) {
    write-host " HTTP Server Ready!  " -f 'black' -b 'gre'
    write-host "now try going to $($http.Prefixes)" -f 'y'
    # write-host "then try going to $($http.Prefixes)other/path" -f 'y'
}


# INFINTE LOOP
# Used to listen for requests
while ($http.IsListening) {



    # Get Request Url
    # When a request is made in a web browser the GetContext() method will return a request object
    # Our route examples below will use the request object properties to decide how to respond
    $context = $http.GetContext()

    # $url = $context.Request.RawUrl
    # $h = $context.Request.Url.Host
    # $path = $url.TrimStart('/').split("?")[0]
    $path = $context.Request.Url.AbsolutePath.TrimStart('/')

    if ($context.Request.HttpMethod -eq 'GET') {
        # We can log the request to the terminal
        write-host "$($context.Request.UserHostAddress)  =>  $($context.Request.Url)" -f 'mag'

        # if ($path -eq "exit") {
        #     [string]$html = "bye!"
        #     $buffer = [System.Text.Encoding]::UTF8.GetBytes($html)
        #     $context.Response.AddHeader("Server", "PowerShell " + $PSV)
        #     $context.Response.ContentLength64 = $buffer.Length
        #     $context.Response.OutputStream.Write($buffer, 0, $buffer.Length) #stream to broswer
        #     $context.Response.OutputStream.Close() # close the response
        #     break
        # }

        if ([IO.File]::Exists([IO.Path]::Combine($parentPath, $path))) {
            $fullPath = [IO.Path]::Combine($parentPath, $path)
        }
        else {
            $fullPath = ""
            for ($i = 0; $i -lt $DefaultPage.Count; $i++) {
                $fullPath = [IO.Path]::Combine($parentPath, $path, $DefaultPage[$i])
                if ([IO.File]::Exists($fullPath)) {
                    break
                }
            }
        }

        # the html/data you want to send to the browser
        if ([IO.File]::Exists($fullPath)) {
            [string]$html = Get-Content $fullPath -Raw
        }
        else {
            $context.Response.StatusCode = 404
            [string]$html = "<h1>404 - File Not Found</h1><address>Powershell/$PSV Server at $ip Port $Port</address>"
        }
        
        #resposed to the request
        try {
            $buffer = [System.Text.Encoding]::UTF8.GetBytes($html) # convert htmtl to bytes
        }
        catch {
            $buffer = [System.Text.Encoding]::UTF8.GetBytes(" ")
        }
        $context.Response.AddHeader("Server", "PowerShell " + $PSV)
        $context.Response.ContentLength64 = $buffer.Length
        $context.Response.OutputStream.Write($buffer, 0, $buffer.Length) #stream to broswer
        $context.Response.OutputStream.Close() # close the response
    
    }

} 
$http.Stop()
# Note:
# To end the loop you have to kill the powershell terminal. ctrl-c wont work :/