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annotate roundup/cgi/exceptions.py @ 4587:a2eb4fb3e6d8

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New Chameleon templating engine, engine is now configurable. We now have two configurable templating engines, the old Zope TAL templates (called zopetal in the config) and the new Chameleon (called chameleon in the config). A new config-option "template_engine" under [main] can take these config-options, the default is zopetal. Thanks to Cheer Xiao for the idea of making this configurable *and* for the actual implementation! Cheer Xiao commit log: - The original TAL engine ported from Zope is thereafter referred to as "zopetal", in speech and in code - A new option "template_engine" under [main] introduced - Zopetal-specific code stripped from cgi/templating.py to form the new cgi/engine_zopetal.py - Interface to Chameleon in cgi/engine_chameleon.py - Engines are supposed to provide a Templates class that mimics the behavior of the old cgi.templating.Templates. The Templates class is preferably subclassed from cgi.templating.TemplatesBase. - New function cgi.templating.get_templates to get the appropriate engine's Templates instance according to the engine name
author Ralf Schlatterbeck <rsc@runtux.com>
date Thu, 23 Feb 2012 18:10:03 +0100
parents bbab97f8ffb2
children 65fef7858606
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1 """Exceptions for use in Roundup's web interface.
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2 """
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3
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4 __docformat__ = 'restructuredtext'
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5
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6 from roundup.exceptions import LoginError, Unauthorised
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7 import cgi
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8
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9 class HTTPException(Exception):
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10 pass
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12 class Redirect(HTTPException):
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13 pass
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15 class NotFound(HTTPException):
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16 pass
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17
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18 class NotModified(HTTPException):
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19 pass
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21 class FormError(ValueError):
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22 """An 'expected' exception occurred during form parsing.
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24 That is, something we know can go wrong, and don't want to alarm the user
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25 with.
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27 We trap this at the user interface level and feed back a nice error to the
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28 user.
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30 """
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31 pass
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33 class SendFile(Exception):
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34 """Send a file from the database."""
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36 class SendStaticFile(Exception):
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37 """Send a static file from the instance html directory."""
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39 class SeriousError(Exception):
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40 """Raised when we can't reasonably display an error message on a
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41 templated page.
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43 The exception value will be displayed in the error page, HTML
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44 escaped.
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45 """
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46 def __str__(self):
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47 return """
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48 <html><head><title>Roundup issue tracker: An error has occurred</title>
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49 <link rel="stylesheet" type="text/css" href="@@file/style.css">
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50 </head>
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51 <body class="body" marginwidth="0" marginheight="0">
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52 <p class="error-message">%s</p>
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53 </body></html>
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54 """%cgi.escape(self.args[0])
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56 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/