Simple script for launching an HTTP Server with CORS enabled. Includes index.json as part of the default index files to serve

httpServerCors

#! /usr/bin/env python2
from SimpleHTTPServer import SimpleHTTPRequestHandler
import os
import BaseHTTPServer

class CORSRequestHandler (SimpleHTTPRequestHandler):
    def end_headers (self):
        self.send_header('Access-Control-Allow-Origin', '*')
        SimpleHTTPRequestHandler.end_headers(self)

    def send_head (self):
        """Common code for GET and HEAD commands.
        
        This sends the response code and MIME headers.
            
        Return value is either a file object (which has to be copied
        to the outputfile by the caller unless the command was HEAD,
        and must be closed by the caller under all circumstances), or
        None, in which case the caller has nothing further to do.
        """
        path = self.translate_path(self.path)
        f = None
        if os.path.isdir(path):
            for index in "index.html", "index.htm", "index.json":
                index = os.path.join(path, index)
                if os.path.exists(index):
                    path = index
                    break
        else:
            return self.list_directory(path)
        
        ctype = self.guess_type(path)
        if ctype.startswith('text/'):
            mode = 'r'
        else:
            mode = 'rb'
        try:
            f = open(path, mode)
        except IOError:
            self.send_error(404, "File not found")
            return None
        self.send_response(200)
        self.send_header("Content-type", ctype)
        self.end_headers()
        return f
        
    def guess_type(self, path):
        mimetype = SimpleHTTPRequestHandler.guess_type(self, path)
        if mimetype == 'application/octet-stream':
            if path.endswith('json'):
                mimetype = 'application/json'
 
        return mimetype	

if __name__ == '__main__':
    BaseHTTPServer.test(CORSRequestHandler, BaseHTTPServer.HTTPServer)