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zephyr_mirror: Improve zwrite error handling. 

(imported from commit a6b5b9c0c9bd6ffde0b2b783c87528bdcae03566)
This commit is contained in:
Tim Abbott 2012-11-16 13:07:54 -05:00
parent 6026c80de6
commit eac3ae2ed1
1 changed files with 43 additions and 22 deletions
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63
api/bots/zephyr_mirror.py
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@ -337,9 +337,14 @@ def send_zephyr(zwrite_args, content):
if p.returncode:
print "zwrite command '%s' failed with return code %d:" % (
" ".join(zwrite_args), p.returncode,)
if stdout:
print stdout
elif stderr:
print "zwrite command '%s' printed the following warning:" % (
" ".join(zwrite_args),)
if stderr:
print stderr
return p.returncode
return (p.returncode, stderr)
def send_authed_zephyr(zwrite_args, content):
return send_zephyr(zwrite_args, content)
@ -390,34 +395,50 @@ def forward_to_zephyr(message):
(zwrite_args, wrapped_content.encode("utf-8")))
return
if send_authed_zephyr(zwrite_args, wrapped_content) != 0:
# If your tickets have expired, Humbug users got your zephyr but MIT
# zephyr users didn't. Try to re-send unauthed, and send a Humbug
# notifying the user that they should check their tickets/mirror.
error_msg = """Hi there! This is an automated message from Humbug.
heading = "Hi there! This is an automated message from Humbug."
support_closing = """If you have any questions, please be in touch through the \
Feedback tab or at support@humbughq.com."""
(code, stderr) = send_authed_zephyr(zwrite_args, wrapped_content)
if code == 0 and stderr == "":
return
elif code == 0:
return send_error_humbug("""%s
Your last message was successfully mirrored to zephyr, but zwrite \
returned the following warning:
%s
If you have any questions, please be in touch through the Feedback tab or at \
support@humbughq.com."""
if send_unauthed_zephyr(zwrite_args, wrapped_content) != 0:
error_msg_detail = """\
Your Humbug-Zephyr mirror bot was unable to forward that last message \
from Humbug to Zephyr. That means that while Humbug users (like you) \
received it, Zephyr users did not.
%s""" % (heading, stderr, support_closing))
elif code != 0 and (stderr.startswith("zwrite: Ticket expired while sending notice to ") or
stderr.startswith("zwrite: No credentials cache found while sending notice to ")):
# Retry sending the message unauthenticated; if that works,
# just notify the user that they need to renew their tickets
(code, stderr) = send_unauthed_zephyr(zwrite_args, wrapped_content)
if code == 0:
return send_error_humbug("""%s
Please check that /mit/tabbott/humbug/zephyr_mirror.py is still \
running and that you have valid Kerberos tickets, and then you can \
resend your message if you would still like it to be mirrored.
"""
else:
error_msg_detail = """\
Your last message was forwarded from Humbug to Zephyr unauthenticated, \
because your Kerberos tickets have expired. It was sent successfully, \
but please renew your Kerberos tickets in the screen session where you \
are running the Humbug-Zephyr mirroring bot, so we can send \
authenticated Zephyr messages for you again."""
send_error_humbug(error_msg % (error_msg_detail,))
authenticated Zephyr messages for you again.
%s""" % (heading, support_closing))
# zwrite failed and it wasn't because of expired tickets: This is
# probably because the recipient isn't subscribed to personals,
# but regardless, we should just notify the user.
return send_error_humbug("""%s
Your Humbug-Zephyr mirror bot was unable to forward that last message \
from Humbug to Zephyr. That means that while Humbug users (like you) \
received it, Zephyr users did not. The error message from zwrite was:
%s
%s""" % (heading, stderr, support_closing))
def maybe_forward_to_zephyr(message):
if (message["sender_email"] == options.user + "@mit.edu"):