def fail(value, context_info=None, src_exception=None, err_condition=None):
"""Wrapper to raise (and log) DAVError."""
if isinstance(value, Exception):
e = as_DAVError(value)
else:
e = DAVError(value, context_info, src_exception, err_condition)
_logger.error("Raising DAVError {}".format(e.get_user_info()))
raise e
def fail(value, context_info=None, src_exception=None, err_condition=None):
"""Wrapper to raise (and log) DAVError."""
if isinstance(value, Exception):
e = as_DAVError(value)
else:
e = DAVError(value, context_info, src_exception, err_condition)
_logger.debug("Raising DAVError {}".format(e.get_user_info()))
raise e
def __call__(self, environ, start_response):
# Intercept start_response
sub_app_start_response = util.SubAppStartResponse()
try:
try:
# request_server app may be a generator (for example the GET handler)
# So we must iterate - not return self.next_app(..)!
# Otherwise the we could not catch exceptions here.
response_started = False
app_iter = self.next_app(environ, sub_app_start_response)
for v in app_iter:
# Start response (the first time)
if not response_started:
# Success!
start_response(
sub_app_start_response.status,
sub_app_start_response.response_headers,
sub_app_start_response.exc_info,
)
response_started = True
yield v
# Close out iterator
if hasattr(app_iter, "close"):
app_iter.close()
# Start response (if it hasn't been done yet)
if not response_started:
# Success!
start_response(
sub_app_start_response.status,
sub_app_start_response.response_headers,
sub_app_start_response.exc_info,
)
return
except DAVError as e:
_logger.debug("re-raising {}".format(e))
raise
except Exception as e:
# Caught a non-DAVError
if self._catch_all_exceptions:
# Catch all exceptions to return as 500 Internal Error
# traceback.print_exc(10, environ.get("wsgi.errors") or sys.stderr)
_logger.error("{}".format(traceback.format_exc(10)))
raise as_DAVError(e)
else:
_logger.error("Caught Exception\n{}".format(
traceback.format_exc(10)))
# traceback.print_exc(10, sys.stderr)
raise
except DAVError as e:
_logger.debug("caught {}".format(e))
status = get_http_status_string(e)
# Dump internal errors to console
if e.value == HTTP_INTERNAL_ERROR:
tb = traceback.format_exc(10)
_logger.error(
"Caught HTTPRequestException(HTTP_INTERNAL_ERROR)\n{}".
format(tb))
# traceback.print_exc(10, environ.get("wsgi.errors") or sys.stdout)
_logger.error("e.srcexception:\n{}".format(e.srcexception))
elif e.value in (HTTP_NOT_MODIFIED, HTTP_NO_CONTENT):
# _logger.warn("Forcing empty error response for {}".format(e.value))
# See paste.lint: these code don't have content
start_response(status, [("Content-Length", "0"),
("Date", util.get_rfc1123_time())])
yield b""
return
# If exception has pre-/post-condition: return as XML response,
# else return as HTML
content_type, body = e.get_response_page()
# TODO: provide exc_info=sys.exc_info()?
start_response(
status,
[
("Content-Type", content_type),
("Content-Length", str(len(body))),
("Date", util.get_rfc1123_time()),
],
)
yield body
return
def __call__(self, environ, start_response):
# Intercept start_response
sub_app_start_response = util.SubAppStartResponse()
try:
try:
# request_server app may be a generator (for example the GET handler)
# So we must iterate - not return self.next_app(..)!
# Otherwise the we could not catch exceptions here.
response_started = False
app_iter = self.next_app(environ, sub_app_start_response)
for v in app_iter:
# Start response (the first time)
if not response_started:
# Success!
start_response(
sub_app_start_response.status,
sub_app_start_response.response_headers,
sub_app_start_response.exc_info,
)
response_started = True
yield v
# Close out iterator
if hasattr(app_iter, "close"):
app_iter.close()
# Start response (if it hasn't been done yet)
if not response_started:
# Success!
start_response(
sub_app_start_response.status,
sub_app_start_response.response_headers,
sub_app_start_response.exc_info,
)
return
except DAVError as e:
_logger.debug("re-raising {}".format(e))
raise
except Exception as e:
# Caught a non-DAVError
if self.catch_all_exceptions:
# Catch all exceptions to return as 500 Internal Error
# traceback.print_exc(10, environ.get("wsgi.errors") or sys.stderr)
_logger.error("{}".format(traceback.format_exc(10)))
raise as_DAVError(e)
else:
_logger.error(
"Caught Exception\n{}".format(traceback.format_exc(10))
)
# traceback.print_exc(10, sys.stderr)
raise
except DAVError as e:
_logger.debug("caught {}".format(e))
status = get_http_status_string(e)
# Dump internal errors to console
if e.value == HTTP_INTERNAL_ERROR:
tb = traceback.format_exc(10)
_logger.error(
"Caught HTTPRequestException(HTTP_INTERNAL_ERROR)\n{}".format(tb)
)
# traceback.print_exc(10, environ.get("wsgi.errors") or sys.stdout)
_logger.error("e.src_exception:\n{}".format(e.src_exception))
elif e.value in (HTTP_NOT_MODIFIED, HTTP_NO_CONTENT):
# _logger.warning("Forcing empty error response for {}".format(e.value))
# See paste.lint: these code don't have content
start_response(
status, [("Content-Length", "0"), ("Date", util.get_rfc1123_time())]
)
yield b""
return
# If exception has pre-/post-condition: return as XML response,
# else return as HTML
content_type, body = e.get_response_page()
# TODO: provide exc_info=sys.exc_info()?
start_response(
status,
[
("Content-Type", content_type),
("Content-Length", str(len(body))),
("Date", util.get_rfc1123_time()),
],
)
yield body
return
