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<?php |
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/** |
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* Content negotiation fix for Surge. |
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* |
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* @see https://dominikschilling.de/notes/http-accept-header-wordpress-cache-activitypub/ |
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* |
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* @package Activitypub |
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*/ |
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|
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$representation = 'html'; |
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|
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if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) { |
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/* |
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* For a given URL, the html and ActivityPub representations must land in different cache buckets, |
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* and this boundary must match how the plugin negotiates that same URL, or one representation could |
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* be replayed for the other. Reuse the plugin's single source of truth: |
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* Activitypub\accept_prefers_activitypub(), which buckets a request as JSON when its highest-priority |
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* (by `q`, then order) media type is ActivityPub. That keeps an ActivityPub-preferring client such |
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* as Mastodon (which also accepts `text/html;q=0.1`) in the JSON bucket instead of the html one. |
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* |
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* This mirrors only the Accept-header branch of Query::is_activitypub_request(), which is the sole |
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* branch that varies a single URL. The `?activitypub` override also forces JSON, but it changes |
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* the URL and Surge already keys on the full URL, so those requests are segregated on their own and |
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* never share a bucket with the negotiated ones. |
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* |
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* Do NOT call Activitypub\is_activitypub_request() here. Surge runs this config from its |
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* advanced-cache.php drop-in, on the cache-serve path, before the plugin, the main $wp_query, and |
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* the plugin's autoloader exist, so that function (which needs all three) would fatal. Only the |
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* dependency-free accept_prefers_activitypub() is safe on this path. functions-request.php is |
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* side-effect-free and the plugin loads it with require_once, so including it here neither runs |
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* code nor risks a redeclare. |
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*/ |
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require_once __DIR__ . '/../includes/functions-request.php'; |
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|
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// phpcs:ignore WordPress.Security.ValidatedSanitizedInput |
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if ( \Activitypub\accept_prefers_activitypub( $_SERVER['HTTP_ACCEPT'] ) ) { |
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$representation = 'json'; |
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} |
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} |
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|
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// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UndefinedVariable |
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$config['variants']['representation'] = $representation; |
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unset( $representation ); |
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|
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// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UndefinedVariable |
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return $config; |
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|
