mirror of
https://github.com/friendica/friendica
synced 2024-05-28 09:38:18 +02:00
287 lines
8.6 KiB
PHP
287 lines
8.6 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Module\Search;
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use Friendica\Content\Nav;
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use Friendica\Content\Pager;
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use Friendica\Content\Text\HTML;
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use Friendica\Content\Widget;
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use Friendica\Core\Cache\Duration;
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use Friendica\Core\Logger;
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use Friendica\Core\Renderer;
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use Friendica\Core\Search;
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use Friendica\Core\Session;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\Contact;
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use Friendica\Model\Item;
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use Friendica\Model\Tag;
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use Friendica\Module\BaseSearch;
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use Friendica\Network\HTTPException;
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use Friendica\Util\Strings;
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class Index extends BaseSearch
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{
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public static function content(array $parameters = [])
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{
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$search = (!empty($_GET['q']) ? Strings::escapeTags(trim(rawurldecode($_GET['q']))) : '');
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if (DI::config()->get('system', 'block_public') && !Session::isAuthenticated()) {
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throw new HTTPException\ForbiddenException(DI::l10n()->t('Public access denied.'));
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}
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if (DI::config()->get('system', 'local_search') && !Session::isAuthenticated()) {
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$e = new HTTPException\ForbiddenException(DI::l10n()->t('Only logged in users are permitted to perform a search.'));
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$e->httpdesc = DI::l10n()->t('Public access denied.');
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throw $e;
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}
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if (DI::config()->get('system', 'permit_crawling') && !Session::isAuthenticated()) {
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// Default values:
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// 10 requests are "free", after the 11th only a call per minute is allowed
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$free_crawls = intval(DI::config()->get('system', 'free_crawls'));
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if ($free_crawls == 0)
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$free_crawls = 10;
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$crawl_permit_period = intval(DI::config()->get('system', 'crawl_permit_period'));
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if ($crawl_permit_period == 0)
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$crawl_permit_period = 10;
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$remote = $_SERVER['REMOTE_ADDR'];
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$result = DI::cache()->get('remote_search:' . $remote);
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if (!is_null($result)) {
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$resultdata = json_decode($result);
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if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
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throw new HTTPException\TooManyRequestsException(DI::l10n()->t('Only one search per minute is permitted for not logged in users.'));
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}
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DI::cache()->set('remote_search:' . $remote, json_encode(['time' => time(), 'accesses' => $resultdata->accesses + 1]), Duration::HOUR);
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} else {
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DI::cache()->set('remote_search:' . $remote, json_encode(['time' => time(), 'accesses' => 1]), Duration::HOUR);
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}
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}
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if (local_user()) {
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DI::page()['aside'] .= Widget\SavedSearches::getHTML(Search::getSearchPath($search), $search);
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}
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Nav::setSelected('search');
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$tag = false;
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if (!empty($_GET['tag'])) {
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$tag = true;
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$search = '#' . Strings::escapeTags(trim(rawurldecode($_GET['tag'])));
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}
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// contruct a wrapper for the search header
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$o = Renderer::replaceMacros(Renderer::getMarkupTemplate('content_wrapper.tpl'), [
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'name' => 'search-header',
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'$title' => DI::l10n()->t('Search'),
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'$title_size' => 3,
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'$content' => HTML::search($search, 'search-box', false)
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]);
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if (!$search) {
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return $o;
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}
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if (strpos($search, '#') === 0) {
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$tag = true;
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$search = substr($search, 1);
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}
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self::tryRedirectToProfile($search);
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if (strpos($search, '@') === 0 || strpos($search, '!') === 0) {
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return self::performContactSearch($search);
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}
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self::tryRedirectToPost($search);
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if (!empty($_GET['search-option'])) {
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switch ($_GET['search-option']) {
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case 'fulltext':
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break;
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case 'tags':
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$tag = true;
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break;
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case 'contacts':
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return self::performContactSearch($search, '@');
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case 'forums':
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return self::performContactSearch($search, '!');
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}
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}
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$tag = $tag || DI::config()->get('system', 'only_tag_search');
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// Here is the way permissions work in the search module...
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// Only public posts can be shown
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// OR your own posts if you are a logged in member
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// No items will be shown if the member has a blocked profile wall.
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if (DI::mode()->isMobile()) {
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$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_mobile_network',
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DI::config()->get('system', 'itemspage_network_mobile'));
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} else {
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$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_network',
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DI::config()->get('system', 'itemspage_network'));
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}
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$pager = new Pager(DI::l10n(), DI::args()->getQueryString(), $itemsPerPage);
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if ($tag) {
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Logger::info('Start tag search.', ['q' => $search]);
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$uriids = Tag::getURIIdListByTag($search, local_user(), $pager->getStart(), $pager->getItemsPerPage());
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if (!empty($uriids)) {
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$params = ['order' => ['id' => true], 'group_by' => ['uri-id']];
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$items = Item::selectForUser(local_user(), [], ['uri-id' => $uriids], $params);
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$r = Item::inArray($items);
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} else {
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$r = [];
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}
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} else {
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Logger::info('Start fulltext search.', ['q' => $search]);
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$condition = [
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"(`uid` = 0 OR (`uid` = ? AND NOT `global`))
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AND `body` LIKE CONCAT('%',?,'%')",
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local_user(), $search
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];
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$params = [
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'order' => ['id' => true],
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'limit' => [$pager->getStart(), $pager->getItemsPerPage()]
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];
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$items = Item::selectForUser(local_user(), [], $condition, $params);
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$r = Item::inArray($items);
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}
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if (!DBA::isResult($r)) {
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notice(DI::l10n()->t('No results.'));
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return $o;
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}
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if ($tag) {
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$title = DI::l10n()->t('Items tagged with: %s', $search);
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} else {
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$title = DI::l10n()->t('Results for: %s', $search);
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}
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$o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'), [
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'$title' => $title
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]);
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Logger::info('Start Conversation.', ['q' => $search]);
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$o .= conversation(DI::app(), $r, 'search', false, false, 'commented', local_user());
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$o .= $pager->renderMinimal(count($r));
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return $o;
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}
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/**
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* Tries to redirect to a local profile page based on the input.
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*
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* This method separates logged in and anonymous users. Logged in users can trigger contact probes to import
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* non-existing contacts while anonymous users can only trigger a local lookup.
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*
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* Formats matched:
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* - @user@domain
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* - user@domain
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* - Any fully-formed URL
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*
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* @param string $search
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* @throws HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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private static function tryRedirectToProfile(string $search)
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{
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$isUrl = !empty(parse_url($search, PHP_URL_SCHEME));
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$isAddr = (bool)preg_match('/^@?([a-z0-9.-_]+@[a-z0-9.-_:]+)$/i', trim($search), $matches);
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if (!$isUrl && !$isAddr) {
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return;
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}
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if ($isAddr) {
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$search = $matches[1];
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}
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if (local_user()) {
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// User-specific contact URL/address search
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$contact_id = Contact::getIdForURL($search, local_user());
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if (!$contact_id) {
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// User-specific contact URL/address search and probe
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$contact_id = Contact::getIdForURL($search);
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}
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} else {
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// Cheaper local lookup for anonymous users, no probe
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if ($isAddr) {
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$contact = Contact::selectFirst(['id'], ['addr' => $search, 'uid' => 0]);
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} else {
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$contact = Contact::getByURL($search, null, ['id']) ?: ['id' => 0];
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}
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if (DBA::isResult($contact)) {
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$contact_id = $contact['id'];
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}
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}
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if (!empty($contact_id)) {
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DI::baseUrl()->redirect('contact/' . $contact_id);
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}
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}
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/**
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* Fetch/search a post by URL and redirects to its local representation if it was found.
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*
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* @param string $search
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* @throws HTTPException\InternalServerErrorException
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*/
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private static function tryRedirectToPost(string $search)
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{
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if (parse_url($search, PHP_URL_SCHEME) == '') {
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return;
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}
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if (local_user()) {
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// Post URL search
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$item_id = Item::fetchByLink($search, local_user());
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if (!$item_id) {
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// If the user-specific search failed, we search and probe a public post
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$item_id = Item::fetchByLink($search);
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}
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} else {
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// Cheaper local lookup for anonymous users, no probe
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$item_id = Item::searchByLink($search);
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}
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if (!empty($item_id)) {
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$item = Item::selectFirst(['guid'], ['id' => $item_id]);
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if (DBA::isResult($item)) {
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DI::baseUrl()->redirect('display/' . $item['guid']);
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}
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}
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}
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}
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