view roundup/cgi/exceptions.py @ 5396:831787cf6694

Python 3 preparation: update next() usage for iterators. Tool-assisted patch. Note that various classes in TAL code with next() methods are not actually Python iterators and so are not changed in this patch, but roundup/cgi/ZTUtils/Iterator.py includes the IterIter class which converts between the two styles of iterator.
author Joseph Myers <jsm@polyomino.org.uk>
date Tue, 24 Jul 2018 23:12:32 +0000
parents 32f95ec6bd8e
children 07abc8d36940
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"""Exceptions for use in Roundup's web interface.
"""

__docformat__ = 'restructuredtext'

from roundup.exceptions import LoginError, Unauthorised
import cgi

class HTTPException(BaseException):
    pass

class Redirect(HTTPException):
    pass

class NotFound(HTTPException):
    pass

class NotModified(HTTPException):
    pass

class DetectorError(BaseException):
    """Raised when a detector throws an exception.
Contains details of the exception."""
    def __init__(self, subject, html, txt):
        self.subject = subject
        self.html = html
        self.txt = txt

class FormError(ValueError):
    """An 'expected' exception occurred during form parsing.

    That is, something we know can go wrong, and don't want to alarm the user
    with.

    We trap this at the user interface level and feed back a nice error to the
    user.

    """
    pass

class SendFile(BaseException):
    """Send a file from the database."""

class SendStaticFile(BaseException):
    """Send a static file from the instance html directory."""

class SeriousError(BaseException):
    """Raised when we can't reasonably display an error message on a
    templated page.

    The exception value will be displayed in the error page, HTML
    escaped.
    """
    def __str__(self):
        return """
<html><head><title>Roundup issue tracker: An error has occurred</title>
 <link rel="stylesheet" type="text/css" href="@@file/style.css">
</head>
<body class="body" marginwidth="0" marginheight="0">
 <p class="error-message">%s</p>
</body></html>
"""%cgi.escape(self.args[0])

# vim: set filetype=python sts=4 sw=4 et si :

Roundup Issue Tracker: http://roundup-tracker.org/