Replace get_remote_metadata_by_actor with Remote_Actors::fetch_by_uri

[pfefferle]

Fixes #

Proposed changes:

Other information:

• Have you written new tests for your changes, if applicable?

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• Go to '..'

Changelog entry

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Changelog Entry Details

Significance

• Patch
• Minor
• Major

Type

• Added - for new features
• Changed - for changes in existing functionality
• Deprecated - for soon-to-be removed features
• Removed - for now removed features
• Fixed - for any bug fixes
• Security - in case of vulnerabilities

Message

[Copilot]

Pull Request Overview

This PR replaces the deprecated get_remote_metadata_by_actor function with the new Remote_Actors::fetch_by_uri method, updating the ActivityPub system to use a more consistent actor fetching mechanism.

• Updates all filter hooks from pre_get_remote_metadata_by_actor to activitypub_pre_http_get_remote_object
• Refactors code to use Remote_Actors::fetch_by_uri() instead of the deprecated function
• Updates test data structures to include required fields like type and inbox

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/includes/collection/class-test-interactions.php	Updates test hooks and mock data to use new actor fetching system
tests/includes/class-test-mention.php	Updates test setup to use new filter hook
includes/collection/class-remote-actors.php	Changes null coalescing operator to short ternary for actor name handling
includes/collection/class-interactions.php	Refactors to use Remote_Actors class instead of deprecated function
includes/class-mention.php	Updates mention processing to use new actor fetching mechanism

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