455 lines
17 KiB
Python
Executable file
455 lines
17 KiB
Python
Executable file
#!/usr/bin/python
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import sys
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import traceback
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import simplejson
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import re
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import time
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import subprocess
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import optparse
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import os
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import datetime
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import textwrap
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import signal
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root_path = "/mit/tabbott/for_friends"
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sys.path.append(root_path + "/python-zephyr")
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sys.path.append(root_path + "/python-zephyr/build/lib.linux-x86_64-2.6/")
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parser = optparse.OptionParser()
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parser.add_option('--forward-class-messages',
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dest='forward_class_messages',
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default=False,
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action='store_true')
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parser.add_option('--resend-log',
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dest='resend_log',
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default=False,
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action='store_true')
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parser.add_option('--enable-log',
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dest='enable_log',
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default=False,
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action='store_true')
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parser.add_option('--no-forward-personals',
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dest='forward_personals',
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default=True,
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action='store_false')
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parser.add_option('--forward-from-humbug',
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dest='forward_from_humbug',
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default=False,
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action='store_true')
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parser.add_option('--verbose',
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dest='verbose',
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default=False,
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action='store_true')
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parser.add_option('--no-auto-subscribe',
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dest='auto_subscribe',
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default=True,
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action='store_false')
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parser.add_option('--site',
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dest='site',
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default="https://app.humbughq.com",
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action='store')
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parser.add_option('--user',
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dest='user',
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default=os.environ["USER"],
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action='store')
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parser.add_option('--api-key-file',
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dest='api_key_file',
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default=os.path.join(os.environ["HOME"], "Private", ".humbug-api-key"),
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action='store')
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(options, args) = parser.parse_args()
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api_key = file(options.api_key_file).read().strip()
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sys.path.append(".")
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sys.path.append(os.path.dirname(os.path.dirname(__file__)))
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import api.common
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humbug_client = api.common.HumbugAPI(email=options.user + "@mit.edu",
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api_key=api_key,
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verbose=True,
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client="zephyr_mirror",
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site=options.site)
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start_time = time.time()
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def humbug_username(zephyr_username):
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return zephyr_username.lower().split("@")[0] + "@mit.edu"
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def unwrap_lines(body):
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# Split into paragraphs at two consecutive newlines, or a newline followed
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# by an indent.
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return '\n\n'.join(p.replace('\n', ' ') for p in re.split(r'\n[ \t\n]', body))
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def send_humbug(zeph):
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if options.forward_class_messages:
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zeph["forged"] = "yes"
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zeph["sender"] = humbug_username(zeph["sender"])
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zeph['fullname'] = username_to_fullname(zeph['sender'])
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zeph['shortname'] = zeph['sender'].split('@')[0]
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if "subject" in zeph:
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zeph["subject"] = zeph["subject"][:60]
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if zeph['type'] == 'stream':
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# Forward messages sent to -c foo -i bar to stream bar subject "instance"
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if zeph["stream"] == "message":
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zeph['stream'] = zeph['subject']
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zeph['subject'] = "instance %s" % (zeph['stream'])
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elif zeph["stream"] == "tabbott-test5":
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zeph['stream'] = zeph['subject']
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zeph['subject'] = "test instance %s" % (zeph['stream'])
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for key in zeph.keys():
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if isinstance(zeph[key], unicode):
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zeph[key] = zeph[key].encode("utf-8")
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elif isinstance(zeph[key], str):
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zeph[key] = zeph[key].decode("utf-8")
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zeph['content'] = unwrap_lines(zeph['content'])
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return humbug_client.send_message(zeph)
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def fetch_fullname(username):
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try:
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match_user = re.match(r'([a-zA-Z0-9_]+)@mit\.edu', username)
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if match_user:
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proc = subprocess.Popen(['hesinfo', match_user.group(1), 'passwd'],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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out, _err_unused = proc.communicate()
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if proc.returncode == 0:
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return out.split(':')[4].split(',')[0]
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except:
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print >>sys.stderr, '%s: zephyr=>humbug: Error getting fullname for %s' % \
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(datetime.datetime.now(), username)
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traceback.print_exc()
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domains = [
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("@CS.CMU.EDU", " (CMU)"),
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("@ANDREW.CMU.EDU", " (CMU)"),
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("@IASTATE.EDU", " (IASTATE)"),
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("@1TS.ORG", " (1TS)"),
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("@DEMENTIA.ORG", " (DEMENTIA)"),
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("@MIT.EDU", ""),
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]
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for (domain, tag) in domains:
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if username.upper().endswith(domain):
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return username.split("@")[0] + tag
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return username
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fullnames = {}
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def username_to_fullname(username):
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if username not in fullnames:
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fullnames[username] = fetch_fullname(username)
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return fullnames[username]
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current_zephyr_subs = {}
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def ensure_subscribed(sub):
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if sub in current_zephyr_subs:
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return
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subs.add((sub, '*', '*'))
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current_zephyr_subs[sub] = True
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def update_subscriptions_from_humbug():
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try:
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res = humbug_client.get_public_streams()
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streams = res["streams"]
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except:
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print "%s: Error getting public streams:" % (datetime.datetime.now())
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traceback.print_exc()
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return
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for stream in streams:
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ensure_subscribed(stream)
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def maybe_restart_mirroring_script():
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if os.stat(root_path + "/restart_stamp").st_mtime > start_time or \
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(options.user == "tabbott" and
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os.stat(root_path + "/tabbott_stamp").st_mtime > start_time):
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print
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print "%s: zephyr mirroring script has been updated; restarting..." % \
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(datetime.datetime.now())
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os.kill(child_pid, signal.SIGKILL)
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while True:
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try:
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os.execvp(root_path + "/zephyr_mirror.py", sys.argv)
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except:
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print "Error restarting, trying again."
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traceback.print_exc()
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time.sleep(10)
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def process_loop(log):
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sleep_count = 0
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sleep_time = 0.1
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while True:
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notice = zephyr.receive(block=False)
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if notice is not None:
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try:
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process_notice(notice, log)
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except:
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print >>sys.stderr, '%s: zephyr=>humbug: Error relaying zephyr' % \
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(datetime.datetime.now())
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traceback.print_exc()
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time.sleep(2)
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maybe_restart_mirroring_script()
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time.sleep(sleep_time)
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sleep_count += sleep_time
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if sleep_count > 15:
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sleep_count = 0
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if options.forward_class_messages:
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# Ask the Humbug server about any new classes to subscribe to
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update_subscriptions_from_humbug()
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continue
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def process_notice(notice, log):
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try:
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zsig, body = notice.message.split("\x00", 1)
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except ValueError:
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body = notice.message
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zsig = ""
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is_personal = False
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is_huddle = False
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if notice.opcode == "PING":
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# skip PING messages
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return
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if isinstance(zsig, str):
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# Check for width unicode character u'\u200B'.encode("utf-8")
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if u'\u200B'.encode("utf-8") in zsig:
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print "%s: zephyr=>humbug: Skipping message from Humbug!" % \
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(datetime.datetime.now())
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return
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sender = notice.sender.lower().replace("athena.mit.edu", "mit.edu")
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recipient = notice.recipient.lower().replace("athena.mit.edu", "mit.edu")
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zephyr_class = notice.cls.lower()
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instance = notice.instance.lower()
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if (zephyr_class == "message" and recipient != ""):
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is_personal = True
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if body.startswith("CC:"):
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is_huddle = True
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# Map "CC: sipbtest espuser" => "starnine@mit.edu,espuser@mit.edu"
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huddle_recipients_list = [humbug_username(x.strip()) for x in
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body.split("\n")[0][4:].split()]
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if sender not in huddle_recipients_list:
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huddle_recipients_list.append(sender)
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huddle_recipients = ",".join(huddle_recipients_list)
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if (zephyr_class == "mail" and instance == "inbox"):
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is_personal = True
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# Drop messages not to the listed subscriptions
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if (zephyr_class not in current_zephyr_subs) and not \
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(is_personal and options.forward_personals):
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print "%s: zephyr=>humbug: Skipping ... %s/%s/%s" % \
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(datetime.datetime.now(), zephyr_class, instance, is_personal)
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return
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if is_huddle:
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zeph = { 'type' : 'personal',
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'time' : str(notice.time),
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'sender' : sender,
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'recipient' : huddle_recipients,
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'zsig' : zsig, # logged here but not used by app
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'content' : body.split("\n", 1)[1] }
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elif is_personal:
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zeph = { 'type' : 'personal',
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'time' : str(notice.time),
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'sender' : sender,
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'recipient' : humbug_username(recipient),
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'zsig' : zsig, # logged here but not used by app
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'content' : body }
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else:
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zeph = { 'type' : 'stream',
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'time' : str(notice.time),
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'sender' : sender,
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'stream' : zephyr_class,
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'subject' : instance,
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'zsig' : zsig, # logged here but not used by app
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'content' : body }
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# Add instances in for instanced personals
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if zeph['type'] == "personal" and instance != "personal":
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zeph["content"] = "[-i %s]" % (instance,) + "\n" + zeph["content"]
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print "%s: zephyr=>humbug: received a message on %s/%s from %s..." % \
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(datetime.datetime.now(), zephyr_class, instance, notice.sender)
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log.write(simplejson.dumps(zeph) + '\n')
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log.flush()
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res = send_humbug(zeph)
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if res.get("result") != "success":
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print >>sys.stderr, 'Error relaying zephyr'
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print zeph
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print res
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def zephyr_to_humbug(options):
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import mit_subs_list
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if options.auto_subscribe:
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add_humbug_subscriptions()
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if options.forward_class_messages:
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for sub in mit_subs_list.all_subs:
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ensure_subscribed(sub)
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update_subscriptions_from_humbug()
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if options.forward_personals:
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subs.add(("message", "*", options.user + "@ATHENA.MIT.EDU"))
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if subscribed_to_mail_messages():
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subs.add(("mail", "inbox", options.user + "@ATHENA.MIT.EDU"))
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if options.resend_log:
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with open('zephyrs', 'r') as log:
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for ln in log:
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try:
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zeph = simplejson.loads(ln)
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print "%s: zephyr=>humbug: sending saved message to %s from %s..." % \
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(datetime.datetime.now(), zeph.get('class', zeph.get('recipient')),
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zeph['sender'])
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send_humbug(zeph)
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except:
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print >>sys.stderr, 'Could not send saved zephyr'
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traceback.print_exc()
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time.sleep(2)
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print "%s: zephyr=>humbug: Starting receive loop." % (datetime.datetime.now(),)
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if options.enable_log:
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log_file = "zephyrs"
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else:
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log_file = "/dev/null"
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with open(log_file, 'a') as log:
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process_loop(log)
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def forward_to_zephyr(message):
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zsig = u"%s\u200B" % (username_to_fullname(message["sender_email"]))
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if ' dot ' in zsig:
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print "%s: humbug=>zephyr: ERROR! Couldn't compute zsig for %s!" % \
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(datetime.datetime.now(), message["sender_email"])
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return
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wrapped_content = "\n".join("\n".join(textwrap.wrap(line))
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for line in message["content"].split("\n"))
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sender_email = message["sender_email"].replace("mit.edu", "ATHENA.MIT.EDU")
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print "%s: humbug=>zephyr: Forwarding message from %s" % \
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(datetime.datetime.now(), sender_email)
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if message['type'] == "stream":
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zephyr_class = message["display_recipient"]
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instance = message["subject"]
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if (instance == "instance %s" % (zephyr_class,) or
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instance == "test instance %s" % (zephyr_class,)):
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# Forward messages to e.g. -c -i white-magic back from the
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# place we forward them to
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if instance.startswith("test"):
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instance = zephyr_class
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zephyr_class = "tabbott-test5"
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else:
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instance = zephyr_class
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zephyr_class = "message"
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zeph = zephyr.ZNotice(sender=sender_email, auth=True,
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cls=zephyr_class, instance=instance)
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body = "%s\0%s" % (zsig, wrapped_content)
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zeph.setmessage(body)
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zeph.send()
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elif message['type'] == "personal":
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recipient = message["display_recipient"]["email"]
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recipient = recipient.replace("@mit.edu", "@ATHENA.MIT.EDU")
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zeph = zephyr.ZNotice(sender=sender_email,
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auth=True, recipient=recipient,
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cls="message", instance="personal")
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body = "%s\0%s" % (zsig, wrapped_content)
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zeph.setmessage(body)
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zeph.send()
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elif message['type'] == "huddle":
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cc_list = ["CC:"]
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cc_list.extend([user["email"].replace("@mit.edu", "")
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for user in message["display_recipient"]])
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body = "%s\0%s\n%s" % (zsig, " ".join(cc_list), wrapped_content)
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for r in message["display_recipient"]:
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recipient = r["email"].replace("mit.edu", "ATHENA.MIT.EDU")
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zeph = zephyr.ZNotice(sender=sender_email, auth=True,
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recipient=recipient, cls="message",
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instance="personal")
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zeph.setmessage(body)
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zeph.send()
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def maybe_forward_to_zephyr(message):
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if message["sender_email"] == options.user + "@mit.edu":
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timestamp_now = datetime.datetime.now().strftime("%s")
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if float(message["timestamp"]) < float(timestamp_now) - 15:
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print "%s humbug=>zephyr: Alert! Out of order message: %s < %s" % \
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(datetime.datetime.now(), message["timestamp"], timestamp_now)
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return
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forward_to_zephyr(message)
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def humbug_to_zephyr(options):
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# Sync messages from zephyr to humbug
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print "%s: humbug=>zephyr: Starting syncing messages." % (datetime.datetime.now(),)
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humbug_client.call_on_each_message(maybe_forward_to_zephyr,
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options={"mirror": 'zephyr_mirror'})
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def subscribed_to_mail_messages():
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for (cls, instance, recipient) in parse_zephyr_subs(verbose=False):
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if (cls.lower() == "mail" and instance.lower() == "inbox"):
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return True
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return False
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def add_humbug_subscriptions():
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zephyr_subscriptions = set()
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for (cls, instance, recipient) in parse_zephyr_subs(verbose=options.verbose):
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if cls == "message" and recipient == "*":
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if instance == "*":
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continue
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# If you're on -i white-magic on zephyr, get on stream white-magic on humbug
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# instead of subscribing to stream message
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zephyr_subscriptions.add(instance)
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continue
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elif instance != "*" or recipient != "*":
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if options.verbose:
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print "Skipping ~/.zephyr.subs line: [%s,%s,%s]: Non-* values" % \
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(cls, instance, recipient)
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continue
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zephyr_subscriptions.add(cls)
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if len(zephyr_subscriptions) != 0:
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humbug_client.subscribe(list(zephyr_subscriptions))
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def parse_zephyr_subs(verbose=False):
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if verbose:
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print "Adding your ~/.zephyr.subs subscriptions to Humbug!"
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zephyr_subscriptions = set()
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subs_file = os.path.join(os.environ["HOME"], ".zephyr.subs")
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if not os.path.exists(subs_file):
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if verbose:
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print >>sys.stderr, "Couldn't find .zephyr.subs!"
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print >>sys.stderr, "Do you mean to run with --no-auto-subscribe?"
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return []
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for line in file(subs_file, "r").readlines():
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line = line.strip()
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if len(line) == 0:
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continue
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try:
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(cls, instance, recipient) = line.split(",")
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except:
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if verbose:
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print >>sys.stderr, "Couldn't parse ~/.zephyr.subs line: [%s]" % (line,)
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continue
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zephyr_subscriptions.add((cls.strip(), instance.strip(), recipient.strip()))
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return zephyr_subscriptions
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if options.forward_from_humbug:
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print "This option is obsolete."
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sys.exit(0)
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child_pid = os.fork()
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if child_pid == 0:
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# Run the humbug => zephyr mirror in the child
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import zephyr
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zephyr.init()
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humbug_to_zephyr(options)
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sys.exit(0)
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import zephyr
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zephyr.init()
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subs = zephyr.Subscriptions()
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zephyr_to_humbug(options)
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