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annotate simpypi/factory.py @ 19:bf70fc5a115f

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make a real python program
author Jeff Hammel <jhammel@mozilla.com>
date Tue, 28 Feb 2012 16:02:53 -0800
parents 77357c5c33c2
children de28a619880e
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19
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1 #!/usr/bin/env python
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2
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3 """
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4 factories for simpypi
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5 """
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7 import optparse
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8 import os
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9 import shutil
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10 import sys
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11 import tempfile
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12
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13 from paste.httpexceptions import HTTPExceptionHandler
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14 from paste.urlparser import StaticURLParser
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15 from pkg_resources import resource_filename
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16 from wsgi import SimPyPI
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17 from wsgiref import simple_server
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18
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19 class PassthroughFileserver(object):
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20 """serve files if they exist"""
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22 def __init__(self, app, directory):
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23 self.app = app
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24 self.directory = directory
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25 self.fileserver = StaticURLParser(directory)
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27 def __call__(self, environ, start_response):
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28 path = self.path(environ['PATH_INFO'].strip('/'))
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29 if path and os.path.exists(os.path.join(self.directory, path)):
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30 return self.fileserver(environ, start_response)
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31 return self.app(environ, start_response)
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32
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33 class NamespacedFileserver(PassthroughFileserver):
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34
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35 def __init__(self, app, directory, namespace):
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36 PassthroughFileserver.__init__(self, app, directory)
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37 self.namespace = namespace
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38
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39 def __call__(self, environ, start_response):
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40 path = environ['PATH_INFO']
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41 if path == self.namespace:
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42 environ['PATH_INFO'] = '/'
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43 return self.fileserver(environ, start_response)
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44 elif path.startswith(self.namespace + '/'):
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45 environ['PATH_INFO'] = path[len(self.namespace):]
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46 return self.fileserver(environ, start_response)
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47 return self.app(environ, start_response)
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48
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49 def factory(**app_conf):
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50 """create a webob view and wrap it in middleware"""
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51 directory = app_conf['directory']
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52 app = SimPyPI(**app_conf)
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53 return NamespacedFileserver(app, directory, '/index')
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54
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55 def main(args=sys.argv[:]):
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56
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57 # parse command line options
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58 usage = '%prog [options]'
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59 parser = optparse.OptionParser(usage=usage)
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60 parser.add_option('-p', '--port', dest='port',
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61 type='int', default=8080,
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62 help="port to run the server on")
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63 parser.add_option('-d', '--directory', dest='directory',
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64 help='directory to serve')
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65 options, args = parser.parse_args(args)
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66
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67 # create a temporary directory, if none specified
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68 tmpdir = None
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69 if not options.directory:
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70 tmpdir = tempfile.mkdtemp()
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71 options.directory = tmpdir
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72
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73 # serve
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74 print "http://localhost:%d/" % options.port
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75 try:
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76 app = factory(directory=options.directory)
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77 server = simple_server.make_server(host='0.0.0.0', port=port, app=app)
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78 server.serve_forever()
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79 finally:
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80 if tmpdir:
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81 shutil.rmtree(tmpdir)
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82
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83 if __name__ == '__main__':
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84 main()