wsgi.py 文件源码

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, '')))