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annotate roundup/cgi/exceptions.py @ 5079:65fef7858606

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issue2550826 IOError in detector causes apache 'premature end of script headers' error Capture all exceptions from auditors/reactors and raise a DetectorError instead. This allows failures like IOErrors from the detectors (e.g. unable to access files) to be handled. Previously an IOError just resulted in no output (premature end of headers under apache). Problem diagnosed and initial patch created by Tom Ekberg (tekberg). Patch application/mods and testing by rouilj.
author John Rouillard <rouilj@ieee.org>
date Fri, 10 Jun 2016 23:33:11 -0400
parents bbab97f8ffb2
children 32f95ec6bd8e
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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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20
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21 class DetectorError(Exception):
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22 """Raised when a detector throws an exception.
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23 Contains details of the exception."""
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24 def __init__(self, subject, html, txt):
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25 self.subject = subject
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26 self.html = html
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27 self.txt = txt
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28
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29 class FormError(ValueError):
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30 """An 'expected' exception occurred during form parsing.
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32 That is, something we know can go wrong, and don't want to alarm the user
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33 with.
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35 We trap this at the user interface level and feed back a nice error to the
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36 user.
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38 """
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39 pass
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41 class SendFile(Exception):
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42 """Send a file from the database."""
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44 class SendStaticFile(Exception):
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45 """Send a static file from the instance html directory."""
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46
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47 class SeriousError(Exception):
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48 """Raised when we can't reasonably display an error message on a
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49 templated page.
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51 The exception value will be displayed in the error page, HTML
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52 escaped.
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53 """
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54 def __str__(self):
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55 return """
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56 <html><head><title>Roundup issue tracker: An error has occurred</title>
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57 <link rel="stylesheet" type="text/css" href="@@file/style.css">
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58 </head>
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59 <body class="body" marginwidth="0" marginheight="0">
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60 <p class="error-message">%s</p>
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61 </body></html>
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62 """%cgi.escape(self.args[0])
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64 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/