Skip to content

Can the content filter regex backtracks be optimized? #10

Description

@deltafactory

I have an edge-case scenario but wanted to suggest an improvement because it "could" affect users some day.

I am applying the content filter as an output buffer so that I can also convert non-https links outside of the post content. When applied to a 518K JSON payload, the preg_replace_callback() function fails. I could likely address this by modifying the pcre backtrack/recursion limits on my server.

Your users may trigger a similar edge case only if they have a large post_content field - unlikely, but remotely possible and a nasty gremlin to detect as there are no errors to explain the missing output.

I would submit a patch if/when I raise my regex game.

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions