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https://issues.apache.org/jira/browse/SOLR-11501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17152100#comment-17152100
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Mikhail Khludnev edited comment on SOLR-11501 at 7/6/20, 3:34 PM:
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[^SOLR-11501-breaker.patch]Attached two tests, both are green before this
commit. The one with enclosed parenthesis {{uf=\* \_query_&q=\{!lucene
df=text_sw}(gigabyte)}} fails after this commit. (Note: this commit and
reproducer was found by [~anatolii_siuniaev]). Interesting there's a
straightforward fix attached to SOLR-14557, however it fixes lucene parser jj
grammar.
was (Author: mkhludnev):
Attached two tests, both are green before this commit. The one with enclosed
parenthesis {{uf=\* \_query_&q=\{!lucene df=text_sw}(gigabyte)}} fails after
this commit. (Note: this commit and reproducer was found by
[~anatolii_siuniaev]). Interesting there's a straightforward fix attached to
SOLR-14557, however it fixes lucene parser jj grammar.
> Depending on the parser, QParser should not parse local-params
> --------------------------------------------------------------
>
> Key: SOLR-11501
> URL: https://issues.apache.org/jira/browse/SOLR-11501
> Project: Solr
> Issue Type: Improvement
> Components: query parsers
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Fix For: 7.2
>
> Attachments: SOLR-11501-breaker.patch,
> SOLR_11501_limit_local_params_parsing.patch,
> SOLR_11501_limit_local_params_parsing.patch
>
>
> Solr should not parse local-params (and thus be able to switch the query
> parser) in certain circumstances. _Perhaps_ it is when the QParser.getParser
> is passed "lucene" for the {{defaultParser}}? This particular approach is
> just a straw-man; I suspect certain valid embedded queries could no longer
> work if this is done incorrectly. Whatever the solution, I don't think we
> should assume 'q' is special, as it's valid and useful to build up queries
> containing user input in other ways, e.g. {{q= +field:value +\{!dismax
> v=$qq\}&qq=user input}} and we want to protect the user input there
> similarly from unwelcome query parsing switching.
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