cors_server.py

cors_server.py

import SimpleHTTPServer
import urllib

class CORSHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
    def send_head(self):

        PREFIX = "/ogcproxy?url="

        """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.

        """
        if self.path[0:len(PREFIX)] == PREFIX:
           self.send_response(200)
           self.end_headers()
           self.copyfile(urllib.urlopen(urllib.unquote(self.path[len(PREFIX):])), self.wfile)
        else:
           path = self.translate_path(self.path)
           #print "path = ", 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("Last-Modified", self.date_time_string(fs.st_mtime))
           self.send_header("Access-Control-Allow-Origin", "*")
           self.end_headers()
           return f


if __name__ == "__main__":
    import os
    import SocketServer

    PORT = 6779

    Handler = CORSHTTPRequestHandler

    httpd = SocketServer.ForkingTCPServer(("", PORT), Handler)

    print "serving at port", PORT
    httpd.serve_forever()