Mercurial > hg > martINI

annotate martini/web.py @ 8:81aed4352851

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make martini work with an ordered dictionary
author Jeff Hammel <jhammel@mozilla.com>
date Wed, 24 Nov 2010 11:05:40 -0800
parents 3c3522ce6e3a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 """
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2 a view with webob + genshi for editing and viewing .ini files
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3 """
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4 import os
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5 import re
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6
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7 from genshi.template import TemplateLoader
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8 from martini.config import ConfigMunger
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9 from martini.utils import getbool
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10 from martini.utils import getlist
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11 from paste.httpexceptions import HTTPExceptionHandler
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12 from paste.urlparser import StaticURLParser
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13 from pkg_resources import resource_filename
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14 from webob import Request, Response, exc
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15
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16 class MartiniWebView(object):
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17
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18 ### class level variables
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19 defaults = { 'auto_reload': 'True',
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20 'files': None,
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21 'directories': None }
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22
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23 def __init__(self, **kw):
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24
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25 # set instance parameters from kw and defaults
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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 = getbool(self.auto_reload)
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29
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30 # files
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31 self.files = getlist(self.files)
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32 if self.files:
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33 assert [ f for f in self.files if os.path.isabs(f) ]
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34 self.files = dict([(os.path.basename(f), f)
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35 for f in self.files])
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36 else:
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37 self.files = {}
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38
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39 # directories
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40 self.directories = getlist(self.directories)
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41 if self.directories:
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42 assert [ d for d in self.directories if os.path.isabs(d) ]
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43 if len(self.directories) > 1 or self.files:
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44 # namespace directories
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45 self.directories = dict([(os.path.basename(d), d)
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46 for d in self.directories])
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47 else:
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48 # don't namespace a single directory
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49 self.directories = { '': self.directories[0] }
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50 else:
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51 self.directories = {}
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52
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53 # have to have something to serve!
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54 assert self.files or self.directories
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55
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56 # methods to respond to
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57 self.response_functions = { 'GET': self.get,
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58 'POST': self.post,
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59 }
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60
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61 # template loader
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62 templates_dir = resource_filename(__name__, 'templates')
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63 self.loader = TemplateLoader(templates_dir,
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64 auto_reload=self.auto_reload)
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65
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66 # fileserver
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67 self.fileserver = StaticURLParser(resource_filename(__name__, 'static'))
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68
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69 def file(self, path):
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70 path = path.strip('/')
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71 if not path:
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72 return None
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73 f = self.files.get(path, None)
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74 if f is None:
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75 if path in self.directories:
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76 return self.directories[path]
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77 if '/' in path:
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78 path = path.split('/', 1)[-1]
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79 for d in self.directories.values():
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80 filename = os.path.join(d, path)
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81 if os.path.exists(filename):
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82 return filename
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83 else:
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84 return f
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85
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86 ### methods dealing with HTTP
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87 def __call__(self, environ, start_response):
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88 request = Request(environ)
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89
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90 if request.path_info.strip('/') and os.path.exists(os.path.join(resource_filename(__name__, 'static'), request.path_info.strip('/'))):
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91 return self.fileserver(environ, start_response)
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92
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93 if request.path_info.endswith('/'):
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94 if request.path_info.strip('/'):
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95 raise exc.HTTPFound(location=request.path_info.rstrip('/'))
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96 else:
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97 if request.path_info != '/':
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98 raise exc.HTTPFound(location='/')
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99 res = self.make_response(request)
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100 return res(environ, start_response)
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101
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102 def make_response(self, request):
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103 return self.response_functions.get(request.method, self.error)(request)
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104
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105 def get_response(self, text, content_type='text/html'):
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106 """make an HTTP response from text"""
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107 res = Response(content_type=content_type, body=text)
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108 return res
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109
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
110 def get(self, request):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
111 """
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
112 return response to a GET requst
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
113 """
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
114
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
115 # index of all resources
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
116 if not request.path_info.strip('/'):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
117 template = self.loader.load('index.html')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
118 items = self.files.keys() + self.directories.keys()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
119 res = template.generate(request=request, items=items).render('html', doctype='html')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
120 return self.get_response(res)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
121
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
122 # get the file
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
123 f = self.file(request.path_info)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
124 if not f:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
125 raise exc.HTTPNotFound()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
126
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
127 # index page of a directory
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
128 if os.path.isdir(f):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
129 template = self.loader.load('index.html')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
130 items = os.listdir(f)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
131 res = template.generate(request=request, items=items).render('html', doctype='html')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
132 return self.get_response(res)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
133
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
134 # get configuration
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
135 conf = ConfigMunger(f)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
136
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
137 # render the template
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
138 template = self.loader.load('table.html')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
139 res = template.generate(request=request, sections=conf.dict()).render('html', doctype='html')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
140 # generate the response
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
141 return self.get_response(res)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
142
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
143 def post(self, request):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
144 """
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
145 return response to a POST request
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
146 """
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
147
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
148 if not request.path_info.strip('/'):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
149 raise exc.HTTPMethodNotAllowed()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
150
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
151 # get the file
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
152 f = self.file(request.path_info)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
153 if not f:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
154 raise exc.HTTPNotFound()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
155 if os.path.isdir(f):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
156 raise exc.HTTPMethodNotAllowed()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
157
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
158 regex = '\[([^\]]+)\](.*)'
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
159
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
160 conf = ConfigMunger(f)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
161
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
162 delete = request.POST.getall('delete')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
163 if delete:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
164 del request.POST['delete']
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
165
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
166 for key, value in request.POST.items():
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
167 value = ' '.join(value.strip().split())
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
168 match = re.match(regex, key)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
169 section, option = match.groups()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
170 if option:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
171 conf.set(section, option, value)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
172 else:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
173 if value:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
174 conf.move_section(section, value)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
175 else:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
176 conf.add_section(section)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
177
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
178 for d in delete:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
179 match = re.match(regex, d)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
180 section, option = match.groups()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
181 if conf.has_section(section):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
182 if option:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
183 conf.remove_option(section, option)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
184 else:
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
185 conf.remove_section(section)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
186
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
187 output = file(f, 'w')
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
188 conf.write(output)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
189
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
190 return exc.HTTPSeeOther(location=request.path_info)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
191
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
192 def error(self, request):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
193 """deal with non-supported methods"""
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
194 return exc.HTTPMethodNotAllowed("Only %r operations are allowed" % self.response_functions.keys())
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
195
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
196
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
197 ### paste factory
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
198
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
199 def factory(global_conf, **app_conf):
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
200 """create a webob view and wrap it in middleware"""
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
201 keystr = 'martini.'
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
202 args = dict([(key.split(keystr, 1)[-1], value)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
203 for key, value in app_conf.items()
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
204 if key.startswith(keystr) ])
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
205 app = MartiniWebView(**args)
3c3522ce6e3a initial import of martINI from https://svn.openplans.org/svn/standalone/martINI/
k0s <k0scist@gmail.com>
parents:
diff changeset
206 return HTTPExceptionHandler(app)