Jump to content

AutoIt script to respond to HTTP requests - possible?

Recommended Posts

is it at all possible to have my AutoIt script listen to HTTP requests, and then respond to them? i don't need the full functionality of a web server, and i prefer not to have one installed, if i can do that inside my script.

to clarify, i know how to submit HTTP requests - i'm talking about the other end here.

Link to post
Share on other sites

This is a quick hack around of the TCP help files to reply with some http 1.1. I've only checked it in a local browser (Chrome) and it seems to work OK.

Opt('MustDeclareVars', 1)

#include <MsgBoxConstants.au3>


Func Example()


    Local $sIPAddress = ""
    Local $iPort = 65432

    Local $iListenSocket = TCPListen($sIPAddress, $iPort, 100)
    Local $iError = 0

    If @error Then
        $iError = @error
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "Could not listen, Error code: " & $iError)
        Return False

    Local $iSocket = 0
        $iSocket = TCPAccept($iListenSocket)

        If @error Then
            $iError = @error
            MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "Could not accept the incoming connection, Error code: " & $iError)
            Return False
    Until $iSocket <> -1

    Local $sReceived = TCPRecv($iSocket, 2048) 

    Local $sBody = "<!DOCTYPE html> "
    $sBody &= '<html lang="en"> '
    $sBody &= "<head> "
    $sBody &= '<link rel="shortcut icon" href="about:blank">'
    $sBody &= '<meta charset="utf-8"> '
    $sBody &= "<title>A simple webpage</title> "
    $sBody &= "</head> "
    $sBody &= "<body> "
    $sBody &= "<h1>Simple webpage</h1> "
    $sBody &= "<p>Hello, world!</p> "
    $sBody &= "</body> "
    $sBody &= "</html> "

    Local $sHead = "HTTP/1.1 200 OK" & @CRLF
    $sHead &= "Content-Type: text/html; charset=utf-8 " & @CRLF
    $sHead &= "Content-Length:" & StringLen($sBody) & @CRLF
    $sHead &= "Connection: keep-alive " & @CRLF
    $sHead &= "Cache-Control: s-maxage=300, public, max-age=0 " & @CRLF
    $sHead &= "Content-Language: en-US " & @CRLF
    $sHead &= "Date: Thu, 04 Feb 2019 11:55:18 GMT " & @CRLF
    $sHead &= 'ETag: "2e77ad1dc6ab0b53a2996dfd4653c1c3" ' & @CRLF
    $sHead &= "Server: meinheld/0.6.1 " & @CRLF
    $sHead &= "Strict-Transport-Security: max-age=63072000 " & @CRLF
    $sHead &= "X-Content-Type-Options: nosniff " & @CRLF
    $sHead &= "X-Frame-Options: DENY " & @CRLF
    $sHead &= "X-XSS-Protection: 1; mode=block " & @CRLF
    $sHead &= "Vary: Accept-Encoding,Cookie " & @CRLF
    $sHead &= "Age: 7 "  & @CRLF & @CRLF
    TCPSend($iSocket, $sHead & $sBody)
EndFunc   ;==>Example

Func OnAutoItExit()
    TCPShutdown() ; Close the TCP service.
EndFunc   ;==>OnAutoItExit

To test this, run the AutoIT. In a browser and you should get a hello world web page served up.

Some points:

1) The default behaviour for browsers is to make a second request for the favicon.ico file, which you can see I have prevented in the html header section with a blank link.

2) The HTTP head needs to be separated from the content by a blank line, hence the double @CRLF

3) You can see the browser page request in $sReceived (not used), you can use this to decide what to serve back.

4) Be aware that if you get more fancy and start using css etc. The browser will request the css as a separate request, you cannot serve it the whole page and all the page resources in one hit. You will need to trap the requests and respond accordingly.



Edit: In case you are wondering, that HTTP header data is just a straight rip from some random online source, it can probably be reduced in size etc.

And yes, I should change that variable name from $sBody to $sContent....

Edited by SlackerAl

Problem solving step 1: Write a simple, self-contained, running, replicator of your problem.

Link to post
Share on other sites



Signature beginning:
Please remember: "AutoIt"..... *  Wondering who uses AutoIt and what it can be used for ? * Forum Rules *
ADO.au3 UDF * POP3.au3 UDF * XML.au3 UDF * for other useful stuff click the following button:


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST APIErrorLog.au3 UDF - A logging Library * Include Dependency Tree (Tool for analyzing script relations) *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Good coding practices in AutoIt * 

OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskSchedulerIE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related:How to get reference to PDF object embeded in IE *

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuffOnHungApp handlerAvoid "AutoIt Error" message box in unknown errors  * HTML editor

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2021-10-18

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...