"""

 WSGI Utilities

 (from web.py)

 """

 import os, sys

 import http

 import webapi as web

 from utils import listget

 from net import validaddr, validip

 import httpserver

 def runfcgi(func, addr=('localhost', 8000)):

     """Runs a WSGI function as a FastCGI server."""

     import flup.server.fcgi as flups

     return flups.WSGIServer(func, multiplexed=True, bindAddress=addr, debug=False).run()

 def runscgi(func, addr=('localhost', 4000)):

     """Runs a WSGI function as an SCGI server."""

     import flup.server.scgi as flups

     return flups.WSGIServer(func, bindAddress=addr, debug=False).run()

 def runwsgi(func):

     """

     Runs a WSGI-compatible `func` using FCGI, SCGI, or a simple web server,

     as appropriate based on context and `sys.argv`.

     """

     if os.environ.has_key('SERVER_SOFTWARE'): # cgi

         os.environ['FCGI_FORCE_CGI'] = 'Y'

     if (os.environ.has_key('PHP_FCGI_CHILDREN') #lighttpd fastcgi

       or os.environ.has_key('SERVER_SOFTWARE')):

         return runfcgi(func, None)

     if 'fcgi' in sys.argv or 'fastcgi' in sys.argv:

         args = sys.argv[1:]

         if 'fastcgi' in args: args.remove('fastcgi')

         elif 'fcgi' in args: args.remove('fcgi')

         if args:

             return runfcgi(func, validaddr(args[0]))

         else:

             return runfcgi(func, None)

     if 'scgi' in sys.argv:

         args = sys.argv[1:]

         args.remove('scgi')

         if args:

             return runscgi(func, validaddr(args[0]))

         else:

             return runscgi(func)

     return httpserver.runsimple(func, validip(listget(sys.argv, 1, '')))

 def _is_dev_mode():

     # Some embedded python interpreters won't have sys.arv

     # For details, see https://github.com/webpy/webpy/issues/87

     argv = getattr(sys, "argv", [])

     # quick hack to check if the program is running in dev mode.

     if os.environ.has_key('SERVER_SOFTWARE') \

         or os.environ.has_key('PHP_FCGI_CHILDREN') \

         or 'fcgi' in argv or 'fastcgi' in argv \

         or 'mod_wsgi' in argv:

             return False

     return True

 # When running the builtin-server, enable debug mode if not already set.

 web.config.setdefault('debug', _is_dev_mode())