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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
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8 from handlers import Index
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9
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10 from paste.fileapp import FileApp
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11 from pkg_resources import resource_filename
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12 from webob import Request, Response, exc
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13
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14 class Dispatcher(object):
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15
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16 ### class level variables
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17 defaults = {'auto_reload': 'False',
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18 'template_dirs': '',
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19 }
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20
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21 def __init__(self, **kw):
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22
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23 # set instance parameters from kw and defaults
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24 for key in self.defaults:
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25 setattr(self, key, kw.get(key, self.defaults[key]))
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26 self.auto_reload = self.auto_reload.lower() == 'true'
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27
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28 # request handlers
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29 self.handlers = [ Index ]
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30
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31 # template directories
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32 self.template_dirs = self.template_dirs.split()
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33 self.template_dirs.append(resource_filename(__name__, 'templates'))
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34
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35 def __call__(self, environ, start_response):
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36
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37 # get a request object
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38 request = Request(environ)
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39
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40 # get the path
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41 path = request.path_info.strip('/').split('/')
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42 if path == ['']:
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43 path = []
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44 request.environ['path'] = path
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45
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46 # match the request to a handler
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47 for h in self.handlers:
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48 handler = h.match(self, request)
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49 if handler is not None:
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50 break
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51 else:
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52 handler = exc.HTTPNotFound
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53
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54 # get response
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55 res = handler()
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56 return res(environ, start_response)
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