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1 """
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2 request dispatcher:
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3 data persisting across requests should go here
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4 """
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5
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6 import os
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7 from handlers import Index
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8 from webob import Request, Response, exc
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9
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10 here = os.path.dirname(os.path.abspath(__file__))
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11
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12 class Dispatcher(object):
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13
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14 ### class level variables
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15 defaults = {'auto_reload': 'False',
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16 'template_dirs': '',
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17 }
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18
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19 def __init__(self, directory, **kw):
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20
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21 self.directory = directory
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22 assert os.path.exists(directory)
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23
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24 # set instance parameters from kw and defaults
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25 # XXX unneeded for now
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26 # for key in self.defaults:
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27 # setattr(self, key, kw.get(key, self.defaults[key]))
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28 # self.auto_reload = self.auto_reload.lower() == 'true'
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29
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30 # request handlers
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31 self.handlers = [ Index ]
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32
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33 # template directories
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34 # self.template_dirs = self.template_dirs.split()
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35 self.template_dirs = [os.path.join(here, 'templates')]
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36
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37 def __call__(self, environ, start_response):
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38
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39 # get a request object
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40 request = Request(environ)
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41
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42 # get the path
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43 path = request.path_info.strip('/').split('/')
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44 if path == ['']:
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45 path = []
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46 request.environ['path'] = path
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47
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48 # match the request to a handler
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49 for h in self.handlers:
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50 handler = h.match(self, request)
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51 if handler is not None:
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52 break
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53 else:
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54 handler = exc.HTTPNotFound
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55
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56 # get response
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57 res = handler()
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58 return res(environ, start_response)
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