# The Python ISAPI package.
# Exceptions thrown by the DLL framework.
class ISAPIError(Exception):
def __init__(self, errno, strerror = None, funcname = None):
# named attributes match IOError etc.
self.errno = errno
self.strerror = strerror
self.funcname = funcname
Exception.__init__(self, errno, strerror, funcname)
def __str__(self):
if self.strerror is None:
try:
import win32api
self.strerror = win32api.FormatMessage(self.errno).strip()
except:
self.strerror = "no error message is available"
# str() looks like a win32api error.
return str( (self.errno, self.strerror, self.funcname) )
class FilterError(ISAPIError):
pass
class ExtensionError(ISAPIError):
pass
# A little development aid - a filter or extension callback function can
# raise one of these exceptions, and the handler module will be reloaded.
# This means you can change your code without restarting IIS.
# After a reload, your filter/extension will have the GetFilterVersion/
# GetExtensionVersion function called, but with None as the first arg.
class InternalReloadException(Exception):
pass
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