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1 import logging
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2 from paste.urlparser import PkgResourcesParser
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3 import paste.fileapp
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4 from pylons import request, tmpl_context as c
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5 from pylons.controllers.util import forward
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6 from pylons.i18n.translation import _
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7 from pylons_app.lib.base import BaseController, render
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8 from pylons.middleware import error_document_template, media_path
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9 import cgi
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10 import os
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11
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12 log = logging.getLogger(__name__)
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13 class ErrorController(BaseController):
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14 """
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15 Generates error documents as and when they are required.
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16
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17 The ErrorDocuments middleware forwards to ErrorController when error
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18 related status codes are returned from the application.
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19
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20 This behaviour can be altered by changing the parameters to the
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21 ErrorDocuments middleware in your config/middleware.py file.
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22 """
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23 #
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24 def __before__(self):
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25 pass
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26
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27 def document(self):
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28
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29 resp = request.environ.get('pylons.original_response')
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30 log.debug(resp.status)
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31 c.error_message = cgi.escape(request.GET.get('code', str(resp.status)))
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32 c.error_explanation = self.get_error_explanation(resp.status_int)
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33
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34 c.serv_p = ''.join(['http://', request.environ.get('HTTP_HOST', '')])
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35
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36 #redirect to when error with given seconds
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37 c.redirect_time = 0
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38 c.redirect_module = _('Home page')# name to what your going to be redirected
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39 c.url_redirect = "/"
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40
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41 return render('/errors/error_document.html')
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42
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43
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44 def img(self, id):
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45 """Serve Pylons' stock images"""
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46 return self._serve_file(os.path.join(media_path, 'img', id))
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47
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48 def style(self, id):
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49 """Serve Pylons' stock stylesheets"""
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50 return self._serve_file(os.path.join(media_path, 'style', id))
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51
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52 def _serve_file(self, path):
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53 """Call Paste's FileApp (a WSGI application) to serve the file
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54 at the specified path
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55 """
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56 fapp = paste.fileapp.FileApp(path)
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57 return fapp(request.environ, self.start_response)
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58
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59 def get_error_explanation(self, code):
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60 ''' get the error explanations of int codes
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61 [400, 401, 403, 404, 500]'''
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62 try:
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63 code = int(code)
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64 except:
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65 code = 500
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66
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67 if code == 400:
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68 return _('The request could not be understood by the server due to malformed syntax.')
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69 if code == 401:
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70 return _('Unathorized access to resource')
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71 if code == 403:
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72 return _("You don't have permission to view this page")
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73 if code == 404:
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74 return _('The resource could not be found')
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75 if code == 500:
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76 return _('The server encountered an unexpected condition which prevented it from fulfilling the request.')
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77
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78
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