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1 """
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2 request dispatcher
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3 """
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4
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5 import os
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6 from handlers import Get, Post
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7 from webob import Request, exc
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8
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9 class Dispatcher(object):
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10
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11 ### class level variables
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12 defaults = { 'directory': None}
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13
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14 def __init__(self, **kw):
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15 for key in self.defaults:
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16 setattr(self, key, kw.get(key, self.defaults[key]))
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17 self.handlers = [ Get, Post ]
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18 assert os.path.exists(self.directory)
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19
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20 ### methods dealing with HTTP
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21 def __call__(self, environ, start_response):
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22 request = Request(environ)
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23 for h in self.handlers:
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24 if h.match(request):
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25 handler = h(self, request)
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26 break
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27 else:
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28 handler = exc.HTTPNotFound
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29 res = handler()
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30 return res(environ, start_response)
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