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1 #!/usr/bin/env python
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2
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3 """
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4 WSGI app for FileServer
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5
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6 Reference:
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7 - http://docs.webob.org/en/latest/file-example.html
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8 """
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9
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10 import mimetypes
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11 import os
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12 from webob import Request, Response, exc
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13
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14 def get_mimetype(filename):
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15 type, encoding = mimetypes.guess_type(filename)
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16 # We'll ignore encoding, even though we shouldn't really
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17 return type or 'application/octet-stream'
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18
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19 def file_response(filename):
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20 res = Response(content_type=get_mimetype(filename))
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21 res.body = open(filename, 'rb').read()
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22 return res
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23
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24 class FileApp(object):
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25 """
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26 serve static files
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27 """
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28
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29 def __init__(self, filename):
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30 self.filename = filename
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31
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32 def __call__(self, environ, start_response):
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33 res = file_response(self.filename)
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34 return res(environ, start_response)
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35
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36 class DirectoryServer(object):
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37
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38 def __init__(self, directory):
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39 assert os.path.exists(directory), "'%s' does not exist" % directory
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40 assert os.path.isdir(directory), "'%s' is not a directory" % directory
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41 self.directory = directory
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42
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43 @staticmethod
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44 def normpath(path):
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45 return os.path.normcase(os.path.abspath(path))
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46
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47 def __call__(self, environ, start_response):
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48 request = Request(environ)
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49 # TODO method_not_allowed: Allow: GET, HEAD
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50 path_info = request.path_info
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51 if not path_info:
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52 pass # self.add slash
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53 full = self.normpath(os.path.join(self.directory, path_info.strip('/')))
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54 if not full.startswith(self.directory):
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55 # Out of bounds
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56 return exc.HTTPNotFound()(environ, start_response)
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57 if not os.path.exists(full):
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58 return exc.HTTPNotFound()(environ, start_response)
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59
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60 if os.path.isdir(full):
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61 # serve directory index
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62 if not path_info.endswith('/'):
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63 return self.add_slash(environ, start_response)
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64 index = self.index(full)
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65 response_headers = [('Content-Type', 'text/html'),
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66 ('Content-Length', str(len(index)))]
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67 response = Response(index, content_type='text/html')
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68 return response(environ, start_response)
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69
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70 # serve file
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71 if path_info.endswith('/'):
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72 # we create the `full` filename above by stripping off
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73 # '/' from both sides; so we correct here
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74 return exc.HTTPNotFound()(environ, start_response)
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75 response = file_response(full)
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76 return response(environ, start_response)
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77
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78 if __name__ == '__main__':
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79 from wsgiref import simple_server
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80 app = Handler()
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81 server = simple_server.make_server(host='0.0.0.0', port=8080, app=app)
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82 server.serve_forever()
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