API: Search endpoint

doc/API-Mastodon.md

@@ -109,6 +109,7 @@ These endpoints use the [Mastodon API entities](https://docs.joinmastodon.org/en
 - [`GET /api/v1/timelines/public`](https://docs.joinmastodon.org/methods/timelines/)
 - [`GET /api/v1/timelines/tag/:hashtag`](https://docs.joinmastodon.org/methods/timelines/)
 - [`GET /api/v1/trends`](https://docs.joinmastodon.org/methods/instance/trends/)
+- [`GET /api/v2/search`](https://docs.joinmastodon.org/methods/search/)
 
 
 ## Currently unimplemented endpoints
@@ -122,7 +123,6 @@ These emdpoints are planned to be implemented
 - [`POST /api/v1/conversations/:id/read`](https://docs.joinmastodon.org/methods/timelines/conversations/)
 - [`GET /api/v1/instance/activity`](https://docs.joinmastodon.org/methods/instance#weekly-activity)
 - [`GET /api/v1/timelines/direct`](https://docs.joinmastodon.org/methods/timelines/)
-- [`GET /api/v2/search`](https://docs.joinmastodon.org/methods/search/)
 
 ## Non supportable endpoints
 

src/Module/Api/Mastodon/Accounts/Search.php

@@ -44,13 +44,13 @@ class Search extends BaseApi
 		$uid = self::getCurrentUserID();
 
 		// What to search for
-		$q = (int)!isset($_REQUEST['q']) ? 0 : $_REQUEST['q'];
+		$q = $_REQUEST['q'] ?? '';
 		// Maximum number of results. Defaults to 40.
-		$limit = (int)!isset($_REQUEST['limit']) ? 40 : $_REQUEST['limit'];
+		$limit = (int)$_REQUEST['limit'] ?? 40;
 		// Attempt WebFinger lookup. Defaults to false. Use this when q is an exact address.
-		$resolve = (int)!isset($_REQUEST['resolve']) ? 0 : $_REQUEST['resolve'];
+		$resolve = (bool)!isset($_REQUEST['resolve']) ? false : ($_REQUEST['resolve'] == 'true');
 		// Only who the user is following. Defaults to false.
-		$following = (int)!isset($_REQUEST['following']) ? 0 : $_REQUEST['following'];
+		$following = (bool)!isset($_REQUEST['following']) ? false : ($_REQUEST['following'] == 'true');
 
 		$accounts = [];
 

src/Module/Api/Mastodon/Search.php

@@ -0,0 +1,194 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Module\Api\Mastodon;
+
+use Friendica\Core\Protocol;
+use Friendica\Core\Search as CoreSearch;
+use Friendica\Core\System;
+use Friendica\Database\DBA;
+use Friendica\DI;
+use Friendica\Model\Contact;
+use Friendica\Model\Post;
+use Friendica\Model\Tag;
+use Friendica\Module\BaseApi;
+use Friendica\Object\Search\ContactResult;
+
+/**
+ * @see https://docs.joinmastodon.org/methods/search/
+ */
+class Search extends BaseApi
+{
+	/**
+	 * @param array $parameters
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	public static function rawContent(array $parameters = [])
+	{
+		self::login(self::SCOPE_READ);
+		$uid = self::getCurrentUserID();
+
+		// If provided, statuses returned will be authored only by this account
+		$account_id = $_REQUEST['account_id'] ?? '';
+		// Return results older than this id
+		$max_id = (int)($_REQUEST['max_id'] ?? 0);
+		// Return results immediately newer than this id
+		$min_id = (int)($_REQUEST['min_id'] ?? 0);
+		// Enum(accounts, hashtags, statuses)
+		$type = $_REQUEST['type'] ?? '';
+		// Filter out unreviewed tags? Defaults to false. Use true when trying to find trending tags.
+		$exclude_unreviewed = (bool)!isset($_REQUEST['exclude_unreviewed']) ? false : ($_REQUEST['exclude_unreviewed'] == 'true');
+		// The search query
+		$q = $_REQUEST['q'] ?? '';
+		// Attempt WebFinger lookup. Defaults to false.
+		$resolve = (bool)!isset($_REQUEST['resolve']) ? false : ($_REQUEST['resolve'] == 'true');
+		// Maximum number of results to load, per type. Defaults to 20. Max 40.
+		$limit = (int)($_REQUEST['limit'] ?? 20);
+		// Offset in search results. Used for pagination. Defaults to 0.
+		$offset = (int)($_REQUEST['offset'] ?? 0);
+		// Only who the user is following. Defaults to false.
+		$following = (bool)!isset($_REQUEST['following']) ? false : ($_REQUEST['following'] == 'true');
+
+		$result = ['accounts' => [], 'statuses' => [], 'hashtags' => []];
+
+		if (empty($type) || ($type == 'accounts')) {
+			$result['accounts'] = self::searchAccounts($uid, $q, $resolve, $limit, $offset, $following);
+		}
+		if ((empty($type) || ($type == 'statuses')) && (strpos($q, '@') == false)) {
+			$result['statuses'] = self::searchStatuses($uid, $q, $account_id, $max_id, $min_id, $limit, $offset);
+		}
+		if ((empty($type) || ($type == 'hashtags')) && (strpos($q, '@') == false)) {
+			$result['hashtags'] = self::searchHashtags($q, $exclude_unreviewed, $limit, $offset);
+		}
+
+		System::jsonExit($result);
+	}
+
+	private static function searchAccounts(int $uid, string $q, bool $resolve, int $limit, int $offset, bool $following)
+	{
+		$accounts = [];
+
+		if (!$following) {
+			if ((strrpos($q, '@') > 0) && $resolve) {
+				$results = CoreSearch::getContactsFromProbe($q);
+			}
+
+			if (empty($results)) {
+				if (DI::config()->get('system', 'poco_local_search')) {
+					$results = CoreSearch::getContactsFromLocalDirectory($q, CoreSearch::TYPE_ALL, 0, $limit);
+				} elseif (!empty(DI::config()->get('system', 'directory'))) {
+					$results = CoreSearch::getContactsFromGlobalDirectory($q, CoreSearch::TYPE_ALL, 1);
+				}
+			}
+			if (!empty($results)) {
+				$counter = 0;
+				foreach ($results->getResults() as $result) {
+					if (++$counter > $limit) {
+						continue;
+					}
+					if ($result instanceof ContactResult) {
+						$id = Contact::getIdForURL($result->getUrl(), 0, false);
+
+						$accounts[] = DI::mstdnAccount()->createFromContactId($id, $uid);
+					}
+				}
+			}
+		} else {
+			$contacts = Contact::searchByName($q, '', $uid);
+
+			$counter = 0;
+			foreach ($contacts as $contact) {
+				if (!in_array($contact['rel'], [Contact::SHARING, Contact::FRIEND])) {
+					continue;
+				}
+				if (++$counter > $limit) {
+					continue;
+				}
+				$accounts[] = DI::mstdnAccount()->createFromContactId($contact['id'], $uid);
+			}
+			DBA::close($contacts);
+		}
+
+		return $accounts;
+	}
+
+	private static function searchStatuses(int $uid, string $q, string $account_id, int $max_id, int $min_id, int $limit, int $offset)
+	{
+		$params = ['order' => ['uri-id' => true], 'limit' => [$offset, $limit]];
+
+		if (substr($q, 0, 1) == '#') {
+			$condition = ["`name` = ? AND (`uid` = ? OR (`uid` = ? AND NOT `global`))
+				AND (`network` IN (?, ?, ?, ?) OR (`uid` = ? AND `uid` != ?))",
+				substr($q, 1), 0, $uid, Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, $uid, 0];
+			$table = 'tag-search-view';
+		} else {
+			$condition = ["`uri-id` IN (SELECT `uri-id` FROM `post-content` WHERE MATCH (`title`, `content-warning`, `body`) AGAINST (? IN BOOLEAN MODE))
+				AND (`uid` = ? OR (`uid` = ? AND NOT `global`)) AND (`network` IN (?, ?, ?, ?) OR (`uid` = ? AND `uid` != ?))",
+				str_replace('@', ' ', $q), 0, $uid, Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, $uid, 0];
+			$table = 'post-user-view';
+		}
+
+		if (!empty($max_id)) {
+			$condition = DBA::mergeConditions($condition, ["`uri-id` < ?", $max_id]);
+		}
+
+		if (!empty($since_id)) {
+			$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $since_id]);
+		}
+
+		if (!empty($min_id)) {
+			$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $min_id]);
+
+			$params['order'] = ['uri-id'];
+		}
+
+		$items = DBA::select($table, ['uri-id'], $condition, $params);
+
+		$statuses = [];
+		while ($item = Post::fetch($items)) {
+			$statuses[] = DI::mstdnStatus()->createFromUriId($item['uri-id'], $uid);
+		}
+		DBA::close($items);
+
+		if (!empty($min_id)) {
+			array_reverse($statuses);
+		}
+
+		return $statuses;
+	}
+
+	private static function searchHashtags(string $q, bool $exclude_unreviewed, int $limit, int $offset)
+	{
+		$q = ltrim($q, '#');
+		$params = ['order' => ['name'], 'limit' => [$offset, $limit]];
+
+		$condition = ["`id` IN (SELECT `tid` FROM `post-tag` WHERE `type` = ? AND `tid` = `id`) AND `name` LIKE ?", Tag::HASHTAG, $q . '%'];
+
+		$tags = DBA::select('tag', ['name'], $condition, $params);
+
+		$hashtags = [];
+		foreach ($tags as $tag) {
+			$hashtags[] = new \Friendica\Object\Api\Mastodon\Tag(DI::baseUrl(), $tag);
+		}
+
+		return $hashtags;
+	}
+}

static/routes.config.php

@@ -150,7 +150,7 @@ return [
 			'/trends'                            => [Module\Api\Mastodon\Trends::class,                   [R::GET         ]],
 		],
 		'/v2' => [
-			'/search'                            => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // @todo
+			'/search'                            => [Module\Api\Mastodon\Search::class,                   [R::GET         ]],
 		],
 		'/friendica' => [
 			'/profile/show'                      => [Module\Api\Friendica\Profile\Show::class, [R::GET         ]],