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Direktori : /opt/alt/python37/share/doc/alt-python37-mako-1.1.0/examples/wsgi/ |
Current File : //opt/alt/python37/share/doc/alt-python37-mako-1.1.0/examples/wsgi/run_wsgi.py |
#!/usr/bin/python from __future__ import absolute_import from __future__ import division from __future__ import print_function from __future__ import unicode_literals import cgi, re, os, posixpath, mimetypes from mako.lookup import TemplateLookup from mako import exceptions root = './' port = 8000 lookup = TemplateLookup( directories=[root + 'templates', root + 'htdocs'], filesystem_checks=True, module_directory='./modules', # even better would be to use 'charset' in start_response output_encoding='ascii', encoding_errors='replace' ) def serve(environ, start_response): """serves requests using the WSGI callable interface.""" fieldstorage = cgi.FieldStorage( fp = environ['wsgi.input'], environ = environ, keep_blank_values = True ) d = dict([(k, getfield(fieldstorage[k])) for k in fieldstorage]) uri = environ.get('PATH_INFO', '/') if not uri: uri = '/index.html' else: uri = re.sub(r'^/$', '/index.html', uri) if re.match(r'.*\.html$', uri): try: template = lookup.get_template(uri) except exceptions.TopLevelLookupException: start_response("404 Not Found", []) return [str.encode("Cant find template '%s'" % uri)] start_response("200 OK", [('Content-type','text/html')]) try: return [template.render(**d)] except: return [exceptions.html_error_template().render()] else: u = re.sub(r'^\/+', '', uri) filename = os.path.join(root, u) if os.path.isfile(filename): start_response("200 OK", [('Content-type',guess_type(uri))]) return [open(filename, 'rb').read()] else: start_response("404 Not Found", []) return [str.encode("File not found: '%s'" % filename)] def getfield(f): """convert values from cgi.Field objects to plain values.""" if isinstance(f, list): return [getfield(x) for x in f] else: return f.value extensions_map = mimetypes.types_map.copy() def guess_type(path): """return a mimetype for the given path based on file extension.""" base, ext = posixpath.splitext(path) if ext in extensions_map: return extensions_map[ext] ext = ext.lower() if ext in extensions_map: return extensions_map[ext] else: return 'text/html' if __name__ == '__main__': import wsgiref.simple_server server = wsgiref.simple_server.make_server('', port, serve) print("Server listening on port %d" % port) server.serve_forever()