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65 lines
1.7 KiB
65 lines
1.7 KiB
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import os
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import logging
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try:
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from urlparse import urlparse
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except ImportError:
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from urllib.parse import urlparse
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from werkzeug.wrappers import Request
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from werkzeug.exceptions import ImATeapot
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from isso import make_app, wsgi
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from isso.core import Config
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logger = logging.getLogger("isso")
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class Dispatcher(object):
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"""
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A dispatcher to support different websites. Dispatches based on
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HTTP-Host. If HTTP-Host is not provided, display an error message.
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"""
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def __init__(self, *confs):
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self.isso = {}
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for conf in map(Config.load, confs):
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app = make_app(conf)
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for origin in conf.getiter("general", "host"):
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self.isso[origin.rstrip("/")] = app
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def __call__(self, environ, start_response):
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if Request(environ).url.endswith((".js", ".css")):
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return self.isso.values()[0](environ, start_response)
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if "HTTP_X_ORIGIN" in environ and "HTTP_ORIGIN" not in environ:
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environ["HTTP_ORIGIN"] = environ["HTTP_X_ORIGIN"]
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origin = environ.get("HTTP_ORIGIN", wsgi.host(environ))
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try:
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# logger.info("dispatch %s", origin)
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return self.isso[origin](environ, start_response)
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except KeyError:
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# logger.info("unable to dispatch %s", origin)
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resp = ImATeapot("unable to dispatch %s" % origin)
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return resp(environ, start_response)
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if "ISSO_SETTINGS" not in os.environ:
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logger.fatal('no such environment variable: ISSO_SETTINGS')
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else:
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confs = os.environ["ISSO_SETTINGS"].split(";")
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for path in confs:
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if not os.path.isfile(path):
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logger.fatal("%s: no such file", path)
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break
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else:
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application = Dispatcher(*confs)
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