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108 lines
4.6 KiB
Python
108 lines
4.6 KiB
Python
import msgpack
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from django.core.management.base import BaseCommand
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from redis import StrictRedis
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from core.db.storage import db
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from core.lib.rules import NotificationRuleData
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from core.models import NotificationRule
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from core.util import logs
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log = logs.get_logger("processing")
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def process_rules(data):
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all_rules = NotificationRule.objects.filter(enabled=True, interval=0)
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for index, index_messages in data.items():
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for message in index_messages:
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for rule in all_rules:
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# Quicker helper to get the data without spinning
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# up a NotificationRuleData object
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parsed_rule = rule.parse()
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matched = {}
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# Rule is invalid, this shouldn't happen
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if "index" not in parsed_rule:
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continue
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if "source" not in parsed_rule:
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continue
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rule_index = parsed_rule["index"]
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rule_source = parsed_rule["source"]
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# if not type(rule_index) == list:
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# rule_index = [rule_index]
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# if not type(rule_source) == list:
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# rule_source = [rule_source]
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if index not in rule_index:
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# We don't care about this index, go to the next one
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continue
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if message["src"] not in rule_source:
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# We don't care about this source, go to the next one
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continue
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matched["index"] = index
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matched["source"] = message["src"]
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rule_field_length = len(parsed_rule.keys())
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matched_field_number = 0
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for field, value in parsed_rule.items():
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# if not type(value) == list:
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# value = [value]
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if field == "src":
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# We already checked this
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continue
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if field == "tokens":
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# Check if tokens are in the rule
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# We only check if *at least one* token matches
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for token in value:
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if "tokens" in message:
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if token in message["tokens"]:
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matched_field_number += 1
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matched[field] = token
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# Break out of the token matching loop
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break
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# Continue to next field
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continue
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if field == "msg":
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# Allow partial matches for msg
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for msg in value:
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if "msg" in message:
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if msg.lower() in message["msg"].lower():
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matched_field_number += 1
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matched[field] = msg
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# Break out of the msg matching loop
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break
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# Continue to next field
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continue
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if field in message and message[field] in value:
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# Do exact matches for all other fields
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matched_field_number += 1
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matched[field] = message[field]
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# Subtract 2, 1 for source and 1 for index
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if matched_field_number == rule_field_length - 2:
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meta = {"matched": matched, "total_hits": 1}
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# Parse the rule, we saved some work above to avoid doing this,
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# but it makes delivering messages significantly easier as we can
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# use the same code as for scheduling.
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rule_data_object = NotificationRuleData(rule.user, rule, db=db)
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# rule_notify(rule, index, message, meta=meta)
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rule_data_object.rule_matched_sync(
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index, message, meta=meta, mode="ondemand"
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)
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class Command(BaseCommand):
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def handle(self, *args, **options):
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r = StrictRedis(unix_socket_path="/var/run/socks/redis.sock", db=0)
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p = r.pubsub()
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p.psubscribe("messages")
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for message in p.listen():
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if message:
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if message["channel"] == b"messages":
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data = message["data"]
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try:
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unpacked = msgpack.unpackb(data, raw=False)
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except TypeError:
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continue
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process_rules(unpacked)
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