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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 4/6] search: note why we do not support FLAG_PURE_NOT
Date: Sat,  5 Sep 2015 09:01:06 +0000	[thread overview]
Message-ID: <1441443668-21092-5-git-send-email-e@80x24.org> (raw)
In-Reply-To: <1441443668-21092-1-git-send-email-e@80x24.org>

Perhaps this can be optionally enabled in the future for smaller
sites.
---
 lib/PublicInbox/Search.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 1874ee9..b6e71da 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -28,6 +28,9 @@ use constant {
 	# 8 - remove redundant/unneeded document data
 	# 9 - disable Message-ID compression
 	SCHEMA_VERSION => 9,
+
+	# n.b. FLAG_PURE_NOT is expensive not suitable for a public website
+	# as it could become a denial-of-service vector
 	QP_FLAGS => FLAG_PHRASE|FLAG_BOOLEAN|FLAG_LOVEHATE|FLAG_WILDCARD,
 };
 
-- 
EW


  parent reply	other threads:[~2015-09-05  9:01 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-05  9:01 [PATCH 0/6] another round of search updates Eric Wong
2015-09-05  9:01 ` [PATCH 1/6] searchview: factor out dump_mset subroutine Eric Wong
2015-09-05  9:01 ` [PATCH 2/6] search: use relevance as secondary sort by default Eric Wong
2015-09-05  9:01 ` [PATCH 3/6] searchview: error description for invalid queries Eric Wong
2015-09-05  9:01 ` Eric Wong [this message]
2015-09-05  9:01 ` [PATCH 5/6] search: tweak parsing for internal queries Eric Wong
2015-09-05  9:01 ` [PATCH 6/6] extmsg: fall back to partial Message-ID matching Eric Wong
2015-09-05  9:14   ` Eric Wong
2015-09-05  9:18     ` [PATCH] extmsg: add note about the deficiency of the implementation Eric Wong

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