import logging

from copy import copy

from django.core.mail import EmailMultiAlternatives

from django.views.debug import ExceptionReporter

from app import settings

class HackathonDevEmailHandler(logging.Handler):

"""An exception log handler that emails log entries to site hackathon devs.

If the request is passed as the first argument to the log record,

request data will be provided in the email report.

This is replicated from Django log to use the default backend properly.

See: https://docs.djangoproject.com/en/1.11/howto/error-reporting/

"""

def emit(self, record):

try:

request = record.request

except Exception:

request = None

subject = '%s: %s' % (

record.levelname,

record.getMessage()

)

subject = subject.replace('\n', '\\n').replace('\r', '\\r')

# Since we add a nicely formatted traceback on our own, create a copy

# of the log record without the exception data.

no_exc_record = copy(record)

no_exc_record.exc_info = None

no_exc_record.exc_text = None

if record.exc_info:

exc_info = record.exc_info

else:

exc_info = (None, record.getMessage(), None)

if settings.HACKATHON_DEV_EMAILS:

reporter = ExceptionReporter(request, is_email=True, *exc_info)

message = "%s\n\n%s" % (self.format(no_exc_record), reporter.get_traceback_text())

html_message = reporter.get_traceback_html()

msg = EmailMultiAlternatives(subject,

message,

'server@' + settings.HACKATHON_DOMAIN,

settings.HACKATHON_DEV_EMAILS)

msg.attach_alternative(html_message, 'text/html')

msg.send(fail_silently=True)