diff options
Diffstat (limited to 'synapse/push/push_rule_evaluator.py')
| -rw-r--r-- | synapse/push/push_rule_evaluator.py | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/synapse/push/push_rule_evaluator.py b/synapse/push/push_rule_evaluator.py index 4654994d2d..753b6469e2 100644 --- a/synapse/push/push_rule_evaluator.py +++ b/synapse/push/push_rule_evaluator.py @@ -22,6 +22,7 @@ import simplejson as json import re from synapse.types import UserID +from synapse.util.caches.lrucache import LruCache logger = logging.getLogger(__name__) @@ -277,18 +278,18 @@ def _glob_matches(glob, value, word_boundary=False): ) if word_boundary: r = r"\b%s\b" % (r,) - r = re.compile(r, flags=re.IGNORECASE) + r = _compile_regex(r) return r.search(value) else: r = r + "$" - r = re.compile(r, flags=re.IGNORECASE) + r = _compile_regex(r) return r.match(value) elif word_boundary: r = re.escape(glob) r = r"\b%s\b" % (r,) - r = re.compile(r, flags=re.IGNORECASE) + r = _compile_regex(r) return r.search(value) else: @@ -306,3 +307,16 @@ def _flatten_dict(d, prefix=[], result={}): _flatten_dict(value, prefix=(prefix+[key]), result=result) return result + + +regex_cache = LruCache(100000) + + +def _compile_regex(regex_str): + r = regex_cache.get(regex_str, None) + if r: + return r + + r = re.compile(regex_str, flags=re.IGNORECASE) + regex_cache[regex_str] = r + return r |