BaseHttpHandler custom methods

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January 28th, 2012, 11:57 AM

hdattada

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Join Date: Jan 2012

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BaseHttpHandler custom methods

Hi I am trying to create a simple webserver program in python 3.2.2 and I want the server to process different methods other than GET and POST. These methods are handled by default by the library.

I want to handle a OPTIONS method and I used a do_OPTIONS() method to handle it. But the programs still doesnt recognize this method. Can someone please help me with that.

Code:

import string,cgi,time
from os import curdir, sep
from http.server import BaseHTTPRequestHandler, HTTPServer
#import pri

class MyHandler(BaseHTTPRequestHandler):

    def do_GET(self):
        try:
            if self.path.endswith(".html"):
                f = open(curdir + sep + self.path) #self.path has /test.html
#note that this potentially makes every file on your computer readable by the internet

                self.send_response(200)
                self.send_header('Content-type',   'text/html')
                self.end_headers()
                self.wfile.write(f.read())
                f.close()
                return
            if self.path.endswith(".esp"):   #our dynamic content
                self.send_response(200)
                self.send_header('Content-type',   'text/html')
                self.end_headers()
                self.wfile.write("hey, today is the" + str(time.localtime()[7]))
            ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
            if ctype == 'multipart/form-data':
                query=cgi.parse_multipart(self.rfile, pdict)
            self.send_response(301)
            
            self.end_headers()
            upfilecontent = query.get('upfile')
            print (("filecontent", upfilecontent[0]))
            self.wfile.write("<HTML>POST OK.<BR><BR>");
            self.wfile.write(upfilecontent[0]);
            
        except :
            pass
         
def do_OPTIONS(self):
         try:
            self.send_response(200)
         except:
            pass

def main():
    try:
        server = HTTPServer(('', 5080), MyHandler)
        print ('started httpserver...')
        server.serve_forever()
    except KeyboardInterrupt:
        print ('^C received, shutting down server')
        server.socket.close()

if __name__ == '__main__':
    main()

and I get the below error:

<head>
<meta http-equiv="Content-Type" content="t
/html;charset=utf-8">
<title>Error response</title>
</head>
<bod
<h1>Error response</h1>
<p>Error code: 400</p>
<p>Messag
Bad HTTP/0.9 request type ('OPTIONS').</p>
<p>Error code explanation:
- Bad request syntax or unsupported method.</p>
</body>
</html>

January 28th, 2012, 10:08 PM

b49P23TIvg

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Join Date: Aug 2011

Posts: 1,075

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code tags here use square [brackets], not angle brackets <code>

January 28th, 2012, 10:19 PM

hdattada

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Quote:

Originally Posted by b49P23TIvg

code tags here use square [brackets], not angle brackets <code>

Thank you for pointing this out.

January 28th, 2012, 11:50 PM

hdattada

Registered User

Join Date: Jan 2012

Posts: 3

Time spent in forums: 58 m 2 sec
Reputation Power: 0

I fixed it. There was an issue with the request I was sending to the program. Initially I was sending OPTIONS HTTP/1.1 as the method request through telnet.

However, the correct way to send a request is
OPTIONS * HTTP/1.1