How to Write a Web Server in Under 50 Lines

Step-by-Step Guide

1. 1

   Step 1: initialize a socket

   Again, this script does not implement the whole HTTP protocol and is not suitable for production use.
   
   It is, however, very useful as a means of illustrating the basic functionality of a web server. ,, To run it, invoke the following on the command line:"python sever.py ".
   
   If you are running a Posix/Unix OS (ex.
   
   Linux or Mac OS X), you will need to run this with root privileges (append 'sudo' to beginning of the command or run in a superuser session).
   
   To make a request of the server, you can open up a browser window and type the following into the address bar: "http://localhost:/" The browser should receive and render the requested file, or a 404 message.
2. 2

   Step 2: bind it to a port

3. 3

   Step 3: and listen for a request.

4. 4

   Step 4: When a request is received

5. 5

   Step 5: parse the request.

6. 6

   Step 6: if the request is a "GET" request

7. 7

   Step 7: it will be of the form:"GET "

8. 8

   Step 8: If the file requested isn't present

9. 9

   Step 9: send a '404' message through the socket

10. 10

    Step 10: if the file requested is present

11. 11

    Step 11: send its contents through the socket

12. 12

    Step 12: preceded by a '200 OK' status message.

13. 13

    Step 13: Steps 2-5 occur in an infinite loop

14. 14

    Step 14: and the script can be exited with 'ctrl+c'.

15. 15

    Step 15: The script in its entirety:

16. 16

    Step 16: You will want to copy it to an empty file and save it as "server.py".

Detailed Guide

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