serve

#!/usr/bin/env python
try:
    from SimpleHTTPServer import SimpleHTTPRequestHandler
    import BaseHTTPServer
    HTTPServer = BaseHTTPServer.HTTPServer
except ImportError:
    # PY3
    from http.server import (SimpleHTTPRequestHandler, BaseHTTPRequestHandler, HTTPServer)
    import http.server as BaseHTTPServer

import os

# essentially like SimpleHTTPRequestHandler, but sets the allow origin
# header.
class RelaxedRequestHandler(SimpleHTTPRequestHandler):
    def send_head(self):
        """
        This is a verbatim copy of the SimpleHTTPRequestHandler.send_head
        method. There are no other ways to inject the  Allow-Origin
        header here...
        """
        path = self.translate_path(self.path)
        f = None
        if os.path.isdir(path):
            if not self.path.endswith('/'):
                # redirect browser - doing basically what apache does
                self.send_response(301)
                self.send_header("Location", self.path + "/")
                self.end_headers()
                return None
            for index in "index.html", "index.htm":
                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)
        try:
            # Always read in binary mode. Opening files in text mode may cause
            # newline translations, making the actual size of the content
            # transmitted *less* than the content-length!
            f = open(path, 'rb')
        except IOError:
            self.send_error(404, "File not found")
            return None
        self.send_response(200)
        self.send_header("Content-type", ctype)
        fs = os.fstat(f.fileno())
        self.send_header("Content-Length", str(fs[6]))
        self.send_header('Access-Control-Allow-Origin', '"*"')
        self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
        self.end_headers()
        return f


BaseHTTPServer.test(RelaxedRequestHandler, HTTPServer)