Hooks

activitypub-json.php

• activitypub_json_post Fires after an ActivityPub object is generated and sent to the client.
• activitypub_json_pre Fires before an ActivityPub object is generated and sent to the client.

atproto-did-for-bridgy-fed.php

• atproto_did Filters the ATproto DID served at /.well-known/atproto-did.

class-accept.php

• activitypub_handled_accept Fires after an ActivityPub Accept activity has been handled.

class-actors-controller.php

• activitypub_rest_users_pre Action triggered prior to the ActivityPub profile being created and sent to the client.

class-actors-inbox-controller.php

• activitypub_inbox_post DEPRECATED Use activitypub_rest_inbox_post instead
• activitypub_rest_inbox_array Filter the ActivityPub inbox array.
• activitypub_rest_inbox_post Action triggered after the ActivityPub inbox has been created and sent to the client.
• activitypub_rest_inbox_pre Action triggered prior to the ActivityPub inbox being created and sent to the client.
• activitypub_rest_inbox_query Filters WP_Query arguments when querying Inbox items via the REST API.

class-actors.php

• activitypub_pre_get_by_id Filter the actor before resolving by ID.
• activitypub_pre_get_by_username Filter the username before we do anything else.

class-announce.php

• activitypub_handled_announce Fires after an ActivityPub Announce activity has been handled.
• activitypub_outbox_announce_sent Fires after an outgoing Announce activity has been processed.

class-arrive.php

• activitypub_outbox_arrive_sent Fires after an Arrive activity has created a local blog post.

class-attachments.php

• activitypub_allowed_import_directories Filters the allowed directories for local file imports.
• activitypub_attachments_media_markup Filters the media markup for ActivityPub attachments.
• activitypub_files_media_markup Filters the media markup for ActivityPub file-based attachments.

class-authorization-code.php

• activitypub_oauth_require_pkce Filter whether PKCE is required for public OAuth clients.

class-base.php

• activitypub_attachment Filter the attachment for a post.
• activitypub_extract_mentions Filter the mentions in the post content.
• activitypub_get_image Filter the image URL returned for each post.
• activitypub_get_image_post Hook into the image retrieval process. After image retrieval.
• activitypub_get_image_pre Hook into the image retrieval process. Before image retrieval.
• activitypub_image_exif Filter the EXIF data for an image attachment.
• activitypub_image_src Filter the image source URL.
• activitypub_locale Filter the locale of the post.
• activitypub_transform_set Filter the value before it is set to the Activity-Object $activity_object.

class-blocked-actors.php

• activitypub_add_user_block Fired when a domain or keyword is blocked.
• activitypub_blocked_actors_row_actions Filters the array of row action links on the Blocked Actors list table.
• activitypub_remove_user_block Fired when a domain or keyword is unblocked.

class-blog.php

• activitypub_default_blog_username Filters the default blog username.

class-cache.php

• activitypub_register_caches Fires after all built-in cache handlers are registered.
• activitypub_remote_cache_enabled Filters whether remote media caching is enabled.
• activitypub_sideloading_enabled DEPRECATED Use activitypub_remote_cache_enabled instead

class-cli.php

• activitypub_handled_inbox Fires after any ActivityPub Inbox activity has been handled, regardless of activity type.
• activitypub_handled_inbox_{$type} Fires after an ActivityPub Inbox activity has been handled.
• activitypub_inbox ActivityPub inbox action.
• activitypub_inbox_{$type} ActivityPub inbox action for specific activity types.

class-client.php

• activitypub_oauth_allow_http_redirect_uri

class-clients-controller.php

• activitypub_allow_dynamic_client_registration Filters whether RFC 7591 dynamic client registration is allowed.

class-collection-sync.php

• activitypub_collection_sync Action triggered Collection Sync.
• activitypub_collection_sync_frequency Filter the frequency of Collection-Synchronization headers sent to a given authority.
• activitypub_followers_sync_reconciled Action triggered after reconciliation is complete.

class-comment.php

• activitypub_comment_attachment_ids Filter the attachment IDs for a comment.
• activitypub_comment_attachments Filter the attachments for a comment.
• activitypub_comment_reply_link Filters the HTML markup for the ActivityPub remote comment reply container.
• activitypub_excluded_comment_types Filters the comment types excluded from the comment count.
• activitypub_federation_warning Filters the warning message shown to logged-in users without ActivityPub capability.
• activitypub_hide_comments_for Filters the list of post types to hide comments for.
• activitypub_max_image_attachments Filters the maximum number of media attachments allowed in a post.
• activitypub_the_content Filters the post content after it was transformed for ActivityPub.

class-create.php

• activitypub_handled_create Fires after an ActivityPub Create activity has been handled.
• activitypub_outbox_created_post Fires after a post has been created from an outgoing Create activity.

class-delete.php

• activitypub_handled_delete Fires after an ActivityPub Delete activity has been handled.
• activitypub_outbox_handled_delete Fires after content has been deleted via an outgoing Delete activity.

class-dispatcher.php

• activitypub_additional_inboxes Filters the list of inboxes to send the Activity to.
• activitypub_dispatcher_batch_size Filters the batch size for processing outbox items.
• activitypub_dispatcher_retry_delay Filters the retry delay unit (in seconds).
• activitypub_dispatcher_retry_error_codes Filters the error codes that qualify for a retry.
• activitypub_dispatcher_retry_max_attempts Filters the maximum number of retry attempts.
• activitypub_handled_outbox_ Fires when an activity has been added to the outbox.
• activitypub_outbox_processing_batch_complete Fires when the batch of followers is complete.
• activitypub_outbox_processing_complete Fires when the followers are complete.
• activitypub_pre_send_to_inboxes Fires before sending an Activity to inboxes.
• activitypub_send_activity
• activitypub_send_activity_to_followers Filters whether to send an Activity to followers.
• activitypub_sent_to_inbox Fires after an Activity has been sent to an inbox.

class-emoji.php

• activitypub_pre_import_emoji Filters the result of emoji import before processing.
• activitypub_validate_emoji_src Filters whether a remote emoji URL is valid.

class-enable-mastodon-apps.php

• activitypub_tags_pub_base_url Filters the tags.pub base URL for tag timeline lookups.
• mastodon_api_status_by_url

class-extra-fields.php

• activitypub_actor_extra_fields_limit Filters the number of extra fields to retrieve for an ActivityPub actor.
• activitypub_extra_field_content Filters the content of an extra field.
• activitypub_get_actor_extra_fields Filters the extra fields for an ActivityPub actor.

class-factory.php

• activitypub_transformer Filter the transformer for a given object.

class-file.php

• activitypub_cache_allowed_mime_types Filters the allowed MIME types for a cache type.
• activitypub_cache_is_safe_url Filters whether a URL passes safety validation.
• activitypub_media_cached Fires after a remote media file has been successfully cached.
• activitypub_pre_download_url Filters the download result before fetching a URL.
• activitypub_should_cache_url Filters whether a URL should be cached.

class-follow.php

• activitypub_followers_post_follow DEPRECATED Use activitypub_handled_follow instead
• activitypub_handled_follow Fires after a Follow activity has been handled.

class-followers-controller.php

• activitypub_rest_followers_pre Action triggered prior to the ActivityPub profile being created and sent to the client.

class-followers.php

• activitypub_followers_pre_remove_follower Fires before a Follower is removed.
• activitypub_followers_row_actions Filters the array of row action links for each follower in the Followers list table.

class-following-controller.php

• activitypub_rest_following DEPRECATED Please migrate your Followings to the new internal Following structure.
• activitypub_rest_following_pre Action triggered prior to the ActivityPub profile being created and sent to the client.

class-following.php

• activitypub_following_row_actions Filters the array of row action links on the Following list table.

class-generic-object.php

• activitypub_activity_object_array Filter the array of the ActivityPub object.
• activitypub_json_encode_options Options to be passed to json_encode().

class-handler.php

• activitypub_register_handlers Register additional handlers.
• activitypub_register_outbox_handlers Register additional outbox handlers.

class-http.php

• activitypub_pre_http_get Fires before an HTTP GET request is made.
• activitypub_pre_http_get_remote_object Filters the preemptive return value of a remote object request.
• activitypub_pre_http_post Fires before an HTTP POST request is made.
• activitypub_remote_get_timeout Filters the timeout duration for remote GET requests in ActivityPub.
• activitypub_remote_post_timeout Filters the timeout duration for remote POST requests in ActivityPub.
• activitypub_safe_remote_get_response Action to save the response of the remote GET request.
• activitypub_safe_remote_post_response Action to save the response of the remote POST request.

class-inbox-controller.php

• activitypub_inbox_shared ActivityPub shared inbox action.
• activitypub_inbox_shared_{$type} ActivityPub shared inbox action for specific activity types.
• activitypub_rest_inbox_disallowed ActivityPub inbox disallowed activity.
• activitypub_skip_inbox_storage Filter to skip inbox storage.
• activitypub_validate_object Filter the ActivityPub object validation.

class-interaction-controller.php

• activitypub_interactions_follow_url Filters the URL used for following an ActivityPub actor.
• activitypub_interactions_reply_url Filters the URL used for replying to an ActivityPub object.
• activitypub_interactions_starter_kit_url Filters the URL used for importing a Starter Kit collection.
• activitypub_interactions_url Filters the redirect URL.

class-like.php

• activitypub_handled_like Fires after an ActivityPub Like activity has been handled.
• activitypub_outbox_like_sent Fires after an outgoing Like activity has been processed.

class-link.php

• activitypub_link_rel Filters the rel attribute for ActivityPub links.

class-litespeed-cache.php

• activitypub_litespeed_cache_htaccess_file Filter the htaccess file path.

class-mailer.php

• activitypub_email_template Filter the email template file path.

class-mastodon.php

• activitypub_import_mastodon_post_data Filter the post data before inserting it into the database.

class-migration.php

• activitypub_migrate Fires when the system has to be migrated.
• added_post_meta Fires when post meta is added.

class-moderation.php

• activitypub_add_site_block Fired when a domain or keyword is blocked site-wide.
• activitypub_remove_site_block Fired when a domain or keyword is unblocked site-wide.

class-moderators-controller.php

• activitypub_rest_moderators Filter the list of moderators.

class-move.php

• activitypub_enable_primary_domain_moves Filter to enable automatically moving Fediverse accounts when the domain changes.
• activitypub_handled_move Fires after an ActivityPub Move activity has been handled.
• activitypub_move_failed Fires when an actor move fails during domain change.

class-nodeinfo-controller.php

• activitypub_rest_nodeinfo_pre Fires before the NodeInfo data is created and sent to the client.
• nodeinfo_data Filter the NodeInfo data.

class-notification.php

• 7.5.0 DEPRECATED
• activitypub_notification DEPRECATED

class-outbox-controller.php

• activitypub_outbox_activity_types Filters the activity types included in the outbox collection.
• activitypub_outbox_{$type} Filters the activity to add to outbox.
• activitypub_rest_outbox_array Filter the ActivityPub outbox array.
• activitypub_rest_outbox_item_error Action triggered when an outbox item is not a WP_Post.
• activitypub_rest_outbox_post Action triggered after the ActivityPub profile has been created and sent to the client.
• activitypub_rest_outbox_pre Action triggered prior to the ActivityPub profile being created and sent to the client.
• activitypub_rest_outbox_query Filters WP_Query arguments when querying Outbox items via the REST API.

class-outbox.php

• activitypub_get_outbox_activity Filters the Activity object before it is returned.
• rest_activitypub_outbox_activity_types

class-post-types.php

• activitypub_after_register_post_type Fires after ActivityPub custom post types have been registered.

class-post.php

• activitypub_attachment_ids Filter the attachment IDs for a post.
• activitypub_attachments Filter the attachments for a post.
• activitypub_before_get_content Provides an action hook so plugins can add their own hooks/filters before AP content is generated.
• activitypub_object_content_template Filters the template used to generate ActivityPub object content.
• activitypub_post_location Filter the location Place object for a post.
• filter_media_by_object_type Filter the object type for media attachments.

class-query.php

• activitypub_is_activitypub_request Filters whether the current request is an ActivityPub request.
• activitypub_queried_object Filters the queried object.
• activitypub_should_negotiate_content Filters whether content negotiation should be forced.

class-quote-request.php

• activitypub_handled_quote_request Fires after an ActivityPub QuoteRequest activity has been handled.
• activitypub_quote_comment_deleted Fires after a quote comment has been deleted and Reject activity sent.

class-reject.php

• activitypub_handled_reject Fires after an ActivityPub Reject activity has been handled.

class-remote-actors.php

• activitypub_remote_media_url Filters a remote video URL for caching.

class-remote-posts.php

• activitypub_preserve_ap_post Filter whether to preserve a specific ap_post from being purged.

class-router.php

• activitypub_preview_template Filter the template used for the ActivityPub preview.
• activitypub_supported_taxonomies Filters the taxonomies supported for term redirects.

class-sanitize.php

• activitypub_allowed_html Filters the allowed HTML for ActivityPub content.

class-scheduler.php

• activitypub_cleanup_remote_actors_number Filter the number of remote Actors to clean up.
• activitypub_register_schedulers Register additional schedulers.
• activitypub_scheduler_async_batch_pause Filters the pause between async batches (in seconds).
• activitypub_update_remote_actors_number Filter the number of remote Actors to update.

class-screen-options.php

• activitypub_screen_options Filters Activitypub settings screen options.

class-server.php

• activitypub_oauth_check_permission Filter to override OAuth permission check.

class-settings.php

• activitypub_admin_settings_tabs Filters the tabs displayed in the ActivityPub settings.

class-statistics.php

• activitypub_annual_stats_compiled Fires after annual statistics have been compiled for all users.
• activitypub_monthly_stats_collected Fires after monthly statistics have been collected for all users.
• activitypub_stats_comment_types Filter the comment types tracked in statistics.

class-stats-image.php

• activitypub_stats_image_url This filter is documented in includes/cache/class-stats-image.php

class-surge.php

• activitypub_surge_cache_config_file Filter the config file path.

class-tombstone.php

• activitypub_pre_http_is_tombstone Fires before checking if the URL is a tombstone.

class-undo.php

• activitypub_handled_undo Fires after an ActivityPub Undo activity has been handled.

class-update.php

• activitypub_handled_update Fires after an ActivityPub Update activity has been handled.
• activitypub_outbox_updated_post Fires after a post has been updated from an outgoing Update activity.

class-user.php

• activitypub_construct_model_actor Fires when a model actor is constructed.

class-webfinger-controller.php

• activitypub_rest_webfinger_pre Action triggered prior to the ActivityPub profile being created and sent to the client.

class-welcome-fields.php

• activitypub_onboarding_steps

following-list.php

• activitypub_post_follow_form Action to add custom content after the follow form.

functions-activity.php

• activitypub_activity_object_types Filters the activity object types.
• activitypub_activity_types Filters the activity types.
• activitypub_actor_types Filters the actor types.
• activitypub_collection_types Filters the collection types.
• activitypub_json_context Filters the ActivityPub JSON-LD context.

functions-comment.php

• activitypub_registered_comment_type Fires after a ActivityPub comment type is registered.
• activitypub_reply_intent_params Filters the reply intent parameters.
• activitypub_reply_intent_url Filters the reply intent URL.

functions-federation.php

• activitypub_add_to_outbox_failed Action triggered when adding an object to the outbox fails.
• activitypub_get_wp_object_state Allow plugins to get the federation state of a WordPress object.
• activitypub_mark_wp_object_as_federated Allow plugins to mark WordPress objects as federated.
• post_activitypub_add_to_outbox Action triggered after an object has been added to the outbox.

functions-post.php

• activitypub_content_visibility Filters the visibility of a post.
• activitypub_excerpt_more Filters the excerpt more value.
• activitypub_is_post_disabled Allow plugins to disable posts for ActivityPub.
• activitypub_post_type_description Allow plugins to get the description of a post type.

functions-request.php

• activitypub_use_authorized_fetch Filters whether to use Authorized-Fetch.
• pre_get_remote_metadata_by_actor Filters the metadata before it is retrieved from a remote actor.

functions-url.php

• activitypub_get_upload_baseurl Filters the upload base URL.
• pre_activitypub_get_upload_baseurl Early filter to allow plugins to set the upload base URL.

functions-user.php

• activitypub_is_user_type_disabled Allow plugins to disable user types for ActivityPub.
• activitypub_user_can_activitypub Allow plugins to enable/disable users for ActivityPub.

functions.php

• activitypub_client_ip Filter the client IP address used for rate limiting.
• activitypub_esc_hashtag Allow defining your own custom hashtag generation rules.
• activitypub_is_blog_public Filter whether the blog is public.
• activitypub_site_supports_blocks Allow plugins to disable block editor support,

locale-from-tags.php

• activitypub_snippet_locale_from_tags_codes Filters the list of language codes to detect in post tags.

new-dm.php

• activitypub_new_dm_email Fires at the bottom of the new direct message emails.

new-follower.php

• activitypub_new_follower_email Fires at the bottom of the new follower email.

new-mention.php

• activitypub_new_mention_email Fires at the bottom of the new mention emails.

stats-report.php

• activitypub_stats_report_email Fires at the bottom of the stats report email.

trait-actor-list-table.php

• activitypub_{$key} Filters the columns displayed in the ActivityPub Following list table.
• activitypub_{$this} Filters the sortable columns in the ActivityPub Following list table.

trait-language-map.php

• activitypub_preferred_languages Filters the preferred language codes for language map resolution.

trait-verification.php

• activitypub_defer_signature_verification Filter to defer signature verification.