Details
-
Bug
-
Status: Closed
-
Minor
-
Resolution: Fixed
-
9.0
-
Steps to reproduce
- Use a Linux machine.
- Build commit ea2c8ba of Solr as described in the section below.
- Build the films collection as described below.
- Start the server using the command ./bin/solr start -f -p 8983 -s /tmp/home
- Request the URL given in the bug description.
Compiling the server
git clone https://github.com/apache/lucene-solr cd lucene-solr git checkout ea2c8ba ant compile cd solr ant server
Building the collection and reproducing the bug
We followed Exercise 2 from the Solr Tutorial.
mkdir -p /tmp/home echo '<?xml version="1.0" encoding="UTF-8" ?><solr></solr>' > /tmp/home/solr.xml
In one terminal start a Solr instance in foreground:
./bin/solr start -f -p 8983 -s /tmp/home
In another terminal, create a collection of movies, with no shards and no replication, and initialize it:
bin/solr create -c films curl -X POST -H 'Content-type:application/json' --data-binary '{"add-field": {"name":"name", "type":"text_general", "multiValued":false, "stored":true}}' http://localhost:8983/solr/films/schema curl -X POST -H 'Content-type:application/json' --data-binary '{"add-copy-field" : {"source":"*","dest":"_text_"}}' http://localhost:8983/solr/films/schema ./bin/post -c films example/films/films.json curl -v “URL_BUG”Please check the issue description below to find the “URL_BUG” that will allow you to reproduce the issue reported.
Steps to reproduce Use a Linux machine. Build commit ea2c8ba of Solr as described in the section below. Build the films collection as described below. Start the server using the command ./bin/solr start -f -p 8983 -s /tmp/home Request the URL given in the bug description. Compiling the server git clone https://github.com/apache/lucene-solr cd lucene-solr git checkout ea2c8ba ant compile cd solr ant server Building the collection and reproducing the bug We followed Exercise 2 from the Solr Tutorial . mkdir -p /tmp/home echo '<?xml version="1.0" encoding="UTF-8" ?><solr></solr>' > /tmp/home/solr.xml In one terminal start a Solr instance in foreground: ./bin/solr start -f -p 8983 -s /tmp/home In another terminal, create a collection of movies, with no shards and no replication, and initialize it: bin/solr create -c films curl -X POST -H 'Content-type:application/json' --data-binary '{"add-field": {"name":"name", "type":"text_general", "multiValued":false, "stored":true}}' http://localhost:8983/solr/films/schema curl -X POST -H 'Content-type:application/json' --data-binary '{"add-copy-field" : {"source":"*","dest":"_text_"}}' http://localhost:8983/solr/films/schema ./bin/post -c films example/films/films.json curl -v “URL_BUG” Please check the issue description below to find the “URL_BUG” that will allow you to reproduce the issue reported.
Description
Requesting the following URL causes Solr to return an HTTP 500 error response:
http://localhost:8983/solr/films/select?df=&explainOther=debug=all&debugQuery=on
The error response seems to be caused by the following uncaught exception:
java.lang.StringIndexOutOfBoundsException: String index out of range: 0 at java.lang.String.charAt(String.java:658) at org.apache.solr.parser.SolrQueryParserBase.getFieldQuery(SolrQueryParserBase.java:1045) at org.apache.solr.parser.SolrQueryParserBase.handleBareTokenQuery(SolrQueryParserBase.java:801) at org.apache.solr.parser.QueryParser.Term(QueryParser.java:421) at org.apache.solr.parser.QueryParser.Clause(QueryParser.java:278) at org.apache.solr.parser.QueryParser.Query(QueryParser.java:162) at org.apache.solr.parser.QueryParser.TopLevelQuery(QueryParser.java:131) at org.apache.solr.parser.SolrQueryParserBase.parse(SolrQueryParserBase.java:255) at org.apache.solr.search.LuceneQParser.parse(LuceneQParser.java:49) at org.apache.solr.search.QParser.getQuery(QParser.java:173) at org.apache.solr.util.SolrPluginUtils.doSimpleQuery(SolrPluginUtils.java:479) at org.apache.solr.util.SolrPluginUtils.doStandardResultsDebug(SolrPluginUtils.java:390) at org.apache.solr.util.SolrPluginUtils.doStandardDebug(SolrPluginUtils.java:343) at org.apache.solr.handler.component.DebugComponent.process(DebugComponent.java:100) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:306) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199)
The “df” parameter means that we set the empty string as default field
. Since we do not give a field in the query, the default field is substituted in getFieldQuery. We then check if the field starts with “_” by using charAt(0).
A trivial fix would be to replace field.charAt(0) == ‘’ with field.startsWith(“”).
To set up an environment to reproduce this bug, follow the description in the ‘Environment’ field.
We automatically found this issue and ~70 more like this using Diffblue Microservices Testing. Find more information on this fuzz testing campaign.
Attachments
Attachments
Issue Links
- links to
