feat: implement paginated outboxes
Mastodon will *only* show posts if they're paginated, fun fact.
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@ -47,33 +47,57 @@ function get_actor(string $preferred_username) {
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die();
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die();
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}
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}
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function get_actor_outbox(string $preferred_username) {
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/** /api/v1/actor/:preferred_username/outbox?before=:before_date_iso&limit=:limit
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* Returns an OrderedCollectionPage of at most `limit` pages published before
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* `before_date_iso`.
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*
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* Parameters:
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* before ISO timestamp string. Only posts published before this time are included
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* limit Integer. Number of posts to include in the result. Default: 20. Max: HOSTAS_MAX_POSTS_PER_PAGE
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*/
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function get_actor_outbox_paged(string $preferred_username) {
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header('Content-Type: application/activity+json');
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header('Content-Type: application/activity+json');
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$before = array_key_exists('before', $_GET) ? $_GET['before'] : date(DATE_ISO8601, time());
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$after = array_key_exists('after', $_GET) ? $_GET['after'] : date(DATE_ISO8601, 0);
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$limit = array_key_exists('limit', $_GET) ? $_GET['limit'] : 20;
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// Parameters in $_GET with a + character will get replaced with whitespace,
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// so we've got to change it back
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$before = str_replace(" ", "+", $before);
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$after = str_replace(" ", "+", $after);
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// Cap the limit at the configured maximum
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if ($limit > HOSTAS_MAX_POSTS_PER_PAGE) {
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$limit = HOSTAS_MAX_POSTS_PER_PAGE;
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}
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$conn = new SQLite3(HOSTAS_DATABASE_PATH);
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$conn = new SQLite3(HOSTAS_DATABASE_PATH);
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$actor = get_actor_or_exit($conn, $preferred_username);
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$actor = get_actor_or_exit($conn, $preferred_username);
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$create_activities_result = prepare_and_execute($conn,
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$sql_query = <<<'EOT'
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"select object.id as object_id, object.type as object_type,
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select object.id as object_id, object.type as object_type,
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activity.actor as activity_actor, post.id as post_id,
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activity.actor as activity_actor, post.id as post_id,
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post.published as post_published, post.type as post_type,
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post.published as post_published, post.type as post_type,
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post.content as post_content
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post.content as post_content, post.published as post_published
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from object
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from object
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join activity on activity.objectId = object.id
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join activity on activity.objectId = object.id
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join object as post on activity.object = post.id
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join object as post on activity.object = post.id
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where activity.actor = :actor_id
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where
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order by object.published",
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activity_actor = :actor_id
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/*
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and post_published < :before
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"select object.id as object_id, object.type as object_type,
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and post_published > :after
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post.id as post_id, post.type as post.type, post.published as post_published,
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order by object.published desc
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post.url as post_url, post.content as post_content
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limit :limit
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from object
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EOT;
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join activity on activity.objectId = object.id
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join object as post on activity.object = post.id
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$create_activities_result = prepare_and_execute($conn, $sql_query,
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where activity.actor = :actor_id
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array(
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order by object.published",
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':actor_id' => $actor['id'],
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*/
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':before' => strtotime($before),
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array(':actor_id' => $actor['id'])
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':after' => strtotime($after),
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':limit' => $limit
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)
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);
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);
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$total_items = 0;
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$total_items = 0;
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@ -99,12 +123,64 @@ function get_actor_outbox(string $preferred_username) {
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));
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));
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}
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}
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$clean_uri = 'https://' . HOSTAS_DOMAIN . strtok($_SERVER['REQUEST_URI'], '?');
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$response = array(
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'@context' => HOSTAS_CONTEXT,
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'id' => 'https://' . HOSTAS_DOMAIN . $_SERVER['REQUEST_URI'],
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'type' => 'OrderedCollectionPage',
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'partOf' => 'https://' . HOSTAS_DOMAIN . $clean_uri,
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'orderedItems' => $ordered_items,
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);
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if ($total_items === 0) {
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// There may be previous items, so we can reuse the before param. We
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// need to do some pre-processing to avoid characters getting escaped
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// from the URL
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$latest_time = str_replace(" ", "+", $before);
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$response['prev'] = $clean_uri . "?after=$latest_time";
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} else {
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$earliest_time = $ordered_items[array_key_last($ordered_items)]['published'];
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$latest_time = $ordered_items[0]['published'];
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$response['prev'] = $clean_uri . "?after=$latest_time";
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$response['next'] = $clean_uri . "?before=$earliest_time";
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}
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echo json_encode($response);
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die();
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}
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function get_actor_outbox(string $preferred_username) {
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header('Content-Type: application/activity+json');
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$conn = new SQLite3(HOSTAS_DATABASE_PATH);
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$actor = get_actor_or_exit($conn, $preferred_username);
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$sql_query = <<<'EOT'
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select count(post.id) as post_count, min(post.published)
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from object
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join activity on activity.objectId = object.id
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join object as post on activity.object = post.id
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where activity.actor = :actor_id
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EOT;
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$items_count_result = prepare_and_execute($conn, $sql_query,
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array(':actor_id' => $actor['id'])
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);
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$items_count_row = $items_count_result->fetchArray(SQLITE3_ASSOC);
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$total_items = $items_count_row['post_count'];
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$collection_id = "https://" . HOSTAS_DOMAIN . "/api/v1/actor/$preferred_username/outbox";
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echo json_encode(array(
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echo json_encode(array(
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'@context' => HOSTAS_CONTEXT,
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'@context' => HOSTAS_CONTEXT,
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'id' => "https://" . HOSTAS_DOMAIN . "/api/v1/actor/$preferred_username/outbox",
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'id' => $collection_id,
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'type' => 'OrderedCollection',
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'type' => 'OrderedCollection',
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'totalItems' => $total_items,
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'totalItems' => $total_items,
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'orderedItems' => $ordered_items,
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'first' => $collection_id . '?before=' . date(DATE_ISO8601, time()),
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'last' => $collection_id . '?after=' . date(DATE_ISO8601, 0),
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));
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));
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die();
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die();
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@ -118,8 +194,15 @@ switch ($_SERVER['REQUEST_METHOD']) {
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case 'GET':
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case 'GET':
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if (sizeof(REQUEST_PATH) === 3) {
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if (sizeof(REQUEST_PATH) === 3) {
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if (REQUEST_PATH[2] === 'inbox') get_actor_inbox(REQUEST_PATH[1]);
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if (REQUEST_PATH[2] === 'inbox') get_actor_inbox(REQUEST_PATH[1]);
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else if (REQUEST_PATH[2] === 'outbox') get_actor_outbox(REQUEST_PATH[1]);
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else if (REQUEST_PATH[2] === 'outbox') {
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if (array_key_exists('before', $_GET) || array_key_exists('after', $_GET)) {
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get_actor_outbox_paged(REQUEST_PATH[1]);
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} else {
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get_actor_outbox(REQUEST_PATH[1]);
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}
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}
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}
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}
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get_actor(REQUEST_PATH[1]);
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get_actor(REQUEST_PATH[1]);
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break;
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break;
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default:
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default:
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