Special characters like Backspace in content are not accepted by solr

amateescu / search_api_solr

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Special characters like Backspace in content are not accepted by solr #66

Closed Berdir closed 5 years ago

Berdir commented 9 years ago

We had an Error 400 Illegal character ((CTRL-CHAR, code 8)) exception when indexing content on one site.

After quite a bit of debugging, I found the node that was causing it and I also managed, after many wrong tries, to configure the ignore characters search api filter to exclude \x08.

It seems that either solarium or search_api_solr should always drop characters that solr will not accept to avoid errors like that. It could log a warning message or so?

mkalkbrenner commented 9 years ago

In apachesolr 7.x we had a filter for that. The equivalent here seems to be Solarium\Core\Query\Helper::filterControlCharacters(). So we should create a patch for Solarium.