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annotate taginthemiddle/example.py @ 0:1c5cbbde4299

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initial commit of middleware tagging; doesnt yet work
author Jeff Hammel <jhammel@mozilla.com>
date Tue, 04 May 2010 08:37:15 -0700
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children c2bb8f873aee
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1c5cbbde4299 initial commit of middleware tagging; doesnt yet work
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1 import os
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3 from dispatcher import Dispatcher
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4 from paste.httpexceptions import HTTPExceptionHandler
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5 from paste.urlparser import StaticURLParser
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6 from pkg_resources import resource_filename
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8 class PassthroughFileserver(object):
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9 """serve files if they exist"""
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11 def __init__(self, app, directory):
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12 self.app = app
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13 self.directory = directory
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14 self.fileserver = StaticURLParser(self.directory)
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16 def __call__(self, environ, start_response):
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17 path = environ['PATH_INFO'].strip('/')
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18 if path and os.path.exists(os.path.join(self.directory, path)):
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19 return self.fileserver(environ, start_response)
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20 return self.app(environ, start_response)
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22 def factory(global_conf, **app_conf):
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23 """create a webob view and wrap it in middleware"""
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25 keystr = 'TagInTheMiddle.'
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26 args = dict([(key.split(keystr, 1)[-1], value)
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27 for key, value in app_conf.items()
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28 if key.startswith(keystr) ])
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29 app = Dispatcher(**args)
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30 return HTTPExceptionHandler(PassthroughFileserver(app, resource_filename(__name__, 'static')))
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