def respond(self, environ, start_response):
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)
try:
return_iter = list(app_iter)
return return_iter
finally:
if hasattr(app_iter, 'close'):
app_iter.close()
except:
exc_info = sys.exc_info()
# Tell the Registry to save its StackedObjectProxies current state
# for later restoration
## FIXME: needs to be more abstract (something in the environ)
## to remove the Paste dependency
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', 'text/html')]
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)
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)
assert count not in self.debug_infos
self.debug_infos[count] = debug_info
if self.xmlhttp_key:
if self.xmlhttp_key in req.params:
exc_data = collector.collect_exception(*exc_info)
html, extra_html = formatter.format_html(
exc_data, include_hidden_frames=False,
include_reusable=False, show_extra_data=False)
return [html, extra_html]
# @@: it would be nice to deal with bad content types here
return debug_info.content()
def handle_exception(
exc_info,
error_stream,
html=True,
debug_mode=False,
error_email=None,
error_log=None,
show_exceptions_in_wsgi_errors=False,
error_email_from="errors@localhost",
smtp_server="localhost",
error_subject_prefix="",
error_message=None,
simple_html_error=False,
):
"""
For exception handling outside of a web context
Use like::
import sys
import paste
import paste.error_middleware
try:
do stuff
except:
paste.error_middleware.exception_handler(
sys.exc_info(), paste.CONFIG, sys.stderr, html=False)
If you want to report, but not fully catch the exception, call
``raise`` after ``exception_handler``, which (when given no argument)
will reraise the exception.
"""
reported = False
exc_data = collector.collect_exception(*exc_info)
extra_data = ""
if error_email:
rep = reporter.EmailReporter(
to_addresses=error_email,
from_address=error_email_from,
smtp_server=smtp_server,
subject_prefix=error_subject_prefix,
)
rep_err = send_report(rep, exc_data, html=html)
if rep_err:
extra_data += rep_err
else:
reported = True
if error_log:
rep = reporter.LogReporter(filename=error_log)
rep_err = send_report(rep, exc_data, html=html)
if rep_err:
extra_data += rep_err
else:
reported = True
if show_exceptions_in_wsgi_errors:
rep = reporter.FileReporter(file=error_stream)
rep_err = send_report(rep, exc_data, html=html)
if rep_err:
extra_data += rep_err
else:
reported = True
else:
error_stream.write("Error - %s: %s\n" % (exc_data.exception_type, exc_data.exception_value))
if html:
if debug_mode and simple_html_error:
return_error = formatter.format_html(
exc_data, include_hidden_frames=False, include_reusable=False, show_extra_data=False
)
reported = True
elif debug_mode and not simple_html_error:
error_html = formatter.format_html(exc_data, include_hidden_frames=True, include_reusable=False)
head_html = ""
return_error = error_template(head_html, error_html, extra_data)
extra_data = ""
reported = True
else:
msg = (
error_message
or """
An error occurred. See the error logs for more information.
(Turn debug on to display exception reports here)
"""
)
return_error = error_template("", msg, "")
else:
return_error = None
if not reported and error_stream:
err_report = formatter.format_text(exc_data, show_hidden_frames=True)[0]
err_report += "\n" + "-" * 60 + "\n"
error_stream.write(err_report)
if extra_data:
error_stream.write(extra_data)
return return_error
def format_html(self, exc_data, **kw):
return formatter.format_html(exc_data, **kw)
def __call__(self, environ, start_response):
start_response("500 Server Error", [("Content-type", "text/html")])
return [formatter.format_html(self.exc_data)]
def handle_exception(
exc_info,
error_stream,
html=True,
debug_mode=False,
error_email=None,
error_log=None,
show_exceptions_in_wsgi_errors=False,
error_email_from='errors@localhost',
smtp_server='localhost',
error_subject_prefix='',
error_message=None,
simple_html_error=False,
):
"""
For exception handling outside of a web context
Use like::
import sys
import paste
import paste.error_middleware
try:
do stuff
except:
paste.error_middleware.exception_handler(
sys.exc_info(), paste.CONFIG, sys.stderr, html=False)
If you want to report, but not fully catch the exception, call
``raise`` after ``exception_handler``, which (when given no argument)
will reraise the exception.
"""
reported = False
exc_data = collector.collect_exception(*exc_info)
extra_data = ''
if error_email:
rep = reporter.EmailReporter(to_addresses=error_email,
from_address=error_email_from,
smtp_server=smtp_server,
subject_prefix=error_subject_prefix)
rep_err = send_report(rep, exc_data, html=html)
if rep_err:
extra_data += rep_err
else:
reported = True
if error_log:
rep = reporter.LogReporter(filename=error_log)
rep_err = send_report(rep, exc_data, html=html)
if rep_err:
extra_data += rep_err
else:
reported = True
if show_exceptions_in_wsgi_errors:
rep = reporter.FileReporter(file=error_stream)
rep_err = send_report(rep, exc_data, html=html)
if rep_err:
extra_data += rep_err
else:
reported = True
else:
error_stream.write('Error - %s: %s\n' %
(exc_data.exception_type, exc_data.exception_value))
if html:
if debug_mode and simple_html_error:
return_error = formatter.format_html(exc_data,
include_hidden_frames=False,
include_reusable=False,
show_extra_data=False)
reported = True
elif debug_mode and not simple_html_error:
error_html = formatter.format_html(exc_data,
include_hidden_frames=True,
include_reusable=False)
head_html = ''
return_error = error_template(head_html, error_html, extra_data)
extra_data = ''
reported = True
else:
msg = error_message or '''
An error occurred. See the error logs for more information.
(Turn debug on to display exception reports here)
'''
return_error = error_template('', msg, '')
else:
return_error = None
if not reported and error_stream:
err_report = formatter.format_text(exc_data,
show_hidden_frames=True)[0]
err_report += '\n' + '-' * 60 + '\n'
error_stream.write(err_report)
if extra_data:
error_stream.write(extra_data)
return return_error
def format_html(self, exc_data, **kw):
return formatter.format_html(exc_data, **kw)
def __call__(self, environ, start_response):
start_response('500 Server Error', [('Content-type', 'text/html')])
return [formatter.format_html(self.exc_data)]
