Bugzilla – Attachment 121751 Details for
Bug 28316
Fix ES crashes related to various punctuation characters
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[patch]
Bug 28316: remove unquoted semicolons and screen all followup colons
Bug-28316-remove-unquoted-semicolons-and-screen-al.patch (text/plain), 1.90 KB, created by
Peter Vashchuk
on 2021-06-10 10:51:23 UTC
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Description:
Bug 28316: remove unquoted semicolons and screen all followup colons
Filename:
MIME Type:
Creator:
Peter Vashchuk
Created:
2021-06-10 10:51:23 UTC
Size:
1.90 KB
patch
obsolete
>From 319e5161376040597ed3c4afde61393232bad3bc Mon Sep 17 00:00:00 2001 >From: Petro Vashchuk <stalkernoid@gmail.com> >Date: Thu, 10 Jun 2021 12:35:48 +0300 >Subject: [PATCH] Bug 28316: remove unquoted semicolons and screen all followup > colons > >Currently searches like: "book:", ":book" and "host-item:test:n" >cause internal server errors. > >This patch adds additional regexes that strips the colons from the start >and end of the query, and another regex that screens all follow-up >colons that go after the first colon to avoid errors when searching for >"host-item:test:n". > >To reproduce: >1) using ES, search for the book with title that contains >semicolon at the start or at the end of the line, separated with spaces, >this should cause internal server error. >2) try doing the same with something like "host-item:test:n", it should >result in error as well. >3) apply the patch. >4) repeat steps 1-2, ensure that it works now. >--- > Koha/SearchEngine/Elasticsearch/QueryBuilder.pm | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > >diff --git a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm >index a39931ab0b..ebabbfb3dd 100644 >--- a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm >+++ b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm >@@ -939,12 +939,17 @@ sub _clean_search_term { > $term = $unquoted; > } > >+ $term = $self->_query_regex_escape_process($term); >+ > # Remove unquoted colons that have whitespace on either side of them >+ $term =~ s/^[:\s]+//; >+ $term =~ s/[\s:]+$//; > $term =~ s/(:+)(\s+)$lookahead/$2/g; > $term =~ s/(\s+)(:+)$lookahead/$1/g; >- $term =~ s/^://; > >- $term = $self->_query_regex_escape_process($term); >+ # screen all followups for colons after first colon, >+ # and correctly ignore unevenly backslashed: >+ $term =~ s/((?<!\\)(?:[\\]{2})*:[^:\s]+(?<!\\)(?:[\\]{2})*)(?=:)/$1\\/g; > > return $term; > } >-- >2.31.1
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