def __call__(self, environ, start_response):
"""
This is straight copied from the original ErrorMiddleware code. Unfortunately they
didnt separate out the actual exception handling into a function, so I must override...
basically just adds the handle_async_exception() call
"""
# We want to be careful about not sending headers twice,
# and the content type that the app has committed to (if there
# is an exception in the iterator body of the response)
if environ.get('paste.throw_errors'):
return self.application(environ, start_response)
environ['paste.throw_errors'] = True
try:
__traceback_supplement__ = errormiddleware.Supplement, self, environ
sr_checker = errormiddleware.ResponseStartChecker(start_response)
app_iter = self.application(environ, sr_checker)
return self.make_catching_iter(app_iter, environ, sr_checker)
except:
exc_info = sys.exc_info()
try:
count = get_debug_count(environ)
base_path = Request(environ).application_url + '/_debug/'
exc_data = collector.collect_exception(*exc_info)
exc_data.view_url = base_path + str(count)
if self.reporters:
for reporter in self.reporters:
reporter.report(exc_data)
#is_async is set by the @ajax decorator
if environ.get('is_async', None):
start_response('500 Internal Server Error',
[('content-type', 'application/json; charset=utf8')],
exc_info)
response = handle_async_exception(exc_info, environ)
else:
start_response('500 Internal Server Error',
[('content-type', 'text/html; charset=utf8')],
exc_info)
# @@: it would be nice to deal with bad content types here
response = self.exception_handler(exc_info, environ)
if isinstance(response, unicode):
response = response.encode('utf8')
return [response]
finally:
# clean up locals...
exc_info = None
def respond(self, environ, start_response):
"""
This is straight copied from the original ErrorMiddleware code. Unfortunately they
didnt separate out the actual exception handling into a function, so I must override...
basically just adds the handle_async_exception() call
"""
req = Request(environ)
if req.environ.get('paste.throw_errors'):
return self.application(environ, start_response)
base_path = req.application_url + '/_debug'
req.environ['paste.throw_errors'] = True
started = []
def detect_start_response(status, headers, exc_info=None):
try:
return start_response(status, headers, exc_info)
except:
raise
else:
started.append(True)
try:
__traceback_supplement__ = errormiddleware.Supplement, self, environ
app_iter = self.application(environ, detect_start_response)
# Don't create a list from a paste.fileapp object
if isinstance(app_iter, fileapp._FileIter):
return app_iter
try:
return_iter = list(app_iter)
return return_iter
finally:
if hasattr(app_iter, 'close'):
app_iter.close()
except:
exc_info = sys.exc_info()
is_async = environ.get('is_async', None) == True
content_type = is_async and 'application/json' or 'text/html'
# Tell the Registry to save its StackedObjectProxies current state
# for later restoration
registry.restorer.save_registry_state(environ)
count = get_debug_count(environ)
view_uri = self.make_view_url(environ, base_path, count)
if not started:
headers = [('content-type', content_type)]
headers.append(('X-Debug-URL', view_uri))
start_response('500 Internal Server Error',
headers,
exc_info)
environ['wsgi.errors'].write('Debug at: %s\n' % view_uri)
exc_data = collector.collect_exception(*exc_info)
exc_data.view_url = view_uri
if self.reporters:
for reporter in self.reporters:
reporter.report(exc_data)
debug_info = DebugInfo(count, exc_info, exc_data, base_path,
environ, view_uri, self.error_template,
self.templating_formatters, self.head_html,
self.footer_html, self.libraries)
assert count not in self.debug_infos
self.debug_infos[count] = debug_info
if is_async:
return [handle_async_exception(exc_info, environ, debug_info=debug_info)]
# @@: it would be nice to deal with bad content types here
return debug_info.content()