mirror of https://github.com/friendica/friendica
326 lines
9.0 KiB
PHP
326 lines
9.0 KiB
PHP
<?php
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/**
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* @file include/tags.php
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*/
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use Friendica\App;
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use Friendica\Content\Feature;
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use Friendica\Core\System;
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use Friendica\Database\DBM;
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use Friendica\Model\Contact;
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function create_tags_from_item($itemid)
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{
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$profile_base = System::baseUrl();
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$profile_data = parse_url($profile_base);
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$profile_path = defaults($profile_data, 'path', '');
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$profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
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$profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
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$messages = q("SELECT `guid`, `uid`, `id`, `edited`, `deleted`, `created`, `received`, `title`, `body`, `tag`, `parent` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
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if (!$messages)
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return;
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$message = $messages[0];
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// Clean up all tags
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q("DELETE FROM `term` WHERE `otype` = %d AND `oid` = %d AND `type` IN (%d, %d)",
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intval(TERM_OBJ_POST),
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intval($itemid),
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intval(TERM_HASHTAG),
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intval(TERM_MENTION));
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if ($message['deleted']) {
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return;
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}
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$taglist = explode(',', $message['tag']);
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$tags = '';
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foreach ($taglist as $tag) {
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if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
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$tags .= ' ' . trim($tag);
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} else {
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$tags .= ' #' . trim($tag);
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}
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}
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$data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags . ' ';
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// ignore anything in a code block
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$data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
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$tags = array();
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$pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
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if (preg_match_all($pattern, $data, $matches)) {
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foreach ($matches[1] as $match) {
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$tags['#' . strtolower($match)] = '';
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}
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}
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$pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
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if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
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foreach ($matches as $match) {
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$tags[$match[1] . strtolower(trim($match[3], ',.:;[]/\"?!'))] = $match[2];
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}
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}
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foreach ($tags as $tag => $link) {
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if (substr(trim($tag), 0, 1) == '#') {
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// try to ignore #039 or #1 or anything like that
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if (ctype_digit(substr(trim($tag), 1)))
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continue;
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// try to ignore html hex escapes, e.g. #x2317
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if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2)))
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continue;
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$type = TERM_HASHTAG;
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$term = substr($tag, 1);
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} elseif (substr(trim($tag), 0, 1) == '@') {
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$type = TERM_MENTION;
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$term = substr($tag, 1);
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} else { // This shouldn't happen
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$type = TERM_HASHTAG;
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$term = $tag;
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}
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if ($message['uid'] == 0) {
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$global = true;
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q("UPDATE `term` SET `global` = 1 WHERE `otype` = %d AND `guid` = '%s'",
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intval(TERM_OBJ_POST), dbesc($message['guid']));
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} else {
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$isglobal = q("SELECT `global` FROM `term` WHERE `uid` = 0 AND `otype` = %d AND `guid` = '%s'",
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intval(TERM_OBJ_POST), dbesc($message['guid']));
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$global = (count($isglobal) > 0);
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}
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q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `guid`, `created`, `received`, `global`)
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VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s', %d)",
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intval($message['uid']), intval($itemid), intval(TERM_OBJ_POST), intval($type), dbesc($term),
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dbesc($link), dbesc($message['guid']), dbesc($message['created']), dbesc($message['received']), intval($global));
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// Search for mentions
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if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
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$users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
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foreach ($users AS $user) {
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if ($user['uid'] == $message['uid']) {
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q("UPDATE `item` SET `mention` = 1 WHERE `id` = %d", intval($itemid));
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q("UPDATE `thread` SET `mention` = 1 WHERE `iid` = %d", intval($message['parent']));
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}
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}
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}
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}
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}
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function create_tags_from_itemuri($itemuri, $uid)
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{
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$messages = q("SELECT `id` FROM `item` WHERE uri ='%s' AND uid=%d", dbesc($itemuri), intval($uid));
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if (count($messages)) {
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foreach ($messages as $message) {
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create_tags_from_item($message['id']);
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}
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}
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}
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function update_items()
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{
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$messages = dba::p("SELECT `oid`,`item`.`guid`, `item`.`created`, `item`.`received` FROM `term` INNER JOIN `item` ON `item`.`id`=`term`.`oid` WHERE `term`.`otype` = 1 AND `term`.`guid` = ''");
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logger('fetched messages: ' . dba::num_rows($messages));
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while ($message = dba::fetch($messages)) {
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if ($message['uid'] == 0) {
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$global = true;
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q("UPDATE `term` SET `global` = 1 WHERE `otype` = %d AND `guid` = '%s'",
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intval(TERM_OBJ_POST), dbesc($message['guid']));
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} else {
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$isglobal = q("SELECT `global` FROM `term` WHERE `uid` = 0 AND `otype` = %d AND `guid` = '%s'",
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intval(TERM_OBJ_POST), dbesc($message['guid']));
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$global = (count($isglobal) > 0);
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}
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q("UPDATE `term` SET `guid` = '%s', `created` = '%s', `received` = '%s', `global` = %d WHERE `otype` = %d AND `oid` = %d",
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dbesc($message['guid']), dbesc($message['created']), dbesc($message['received']),
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intval($global), intval(TERM_OBJ_POST), intval($message['oid']));
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}
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dba::close($messages);
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$messages = dba::p("SELECT `guid` FROM `item` WHERE `uid` = 0");
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logger('fetched messages: ' . dba::num_rows($messages));
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while ($message = dba::fetch(messages)) {
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q("UPDATE `item` SET `global` = 1 WHERE `guid` = '%s'", dbesc($message['guid']));
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}
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dba::close($messages);
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}
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/**
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* @brief Get alphabetical sorted array of used tags/terms of an user including
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* a weighting by frequency of use.
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*
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* @param int $uid The user ID.
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* @param int $count Max number of displayed tags/terms.
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* @param int $owner_id The contact id of the owner of the tagged items.
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* @param string $flags Special item flags.
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* @param int $type The tag/term type.
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*
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* @return arr Alphabetical sorted array of used tags of an user.
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*/
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function tagadelic($uid, $count = 0, $owner_id = 0, $flags = '', $type = TERM_HASHTAG)
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{
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require_once 'include/security.php';
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$item_condition = item_condition();
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$sql_options = item_permissions_sql($uid);
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$limit = $count ? sprintf('LIMIT %d', intval($count)) : '';
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if ($flags) {
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if ($flags === 'wall') {
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$sql_options .= ' AND `item`.`wall` ';
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}
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}
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if ($owner_id) {
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$sql_options .= ' AND `item`.`owner-id` = ' . intval($owner_id) . ' ';
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}
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// Fetch tags
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$r = dba::p("SELECT `term`, COUNT(`term`) AS `total` FROM `term`
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LEFT JOIN `item` ON `term`.`oid` = `item`.`id`
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WHERE `term`.`uid` = ? AND `term`.`type` = ?
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AND `term`.`otype` = ?
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AND $item_condition $sql_options
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GROUP BY `term` ORDER BY `total` DESC $limit",
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$uid,
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$type,
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TERM_OBJ_POST
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);
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if (!DBM::is_result($r)) {
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return array();
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}
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return tag_calc($r);
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}
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/**
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* @brief Construct a tag/term cloud block for an user.
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*
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* @param int $uid The user ID.
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* @param int $count Max number of displayed tags/terms.
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* @param int $owner_id The contact ID of the owner of the tagged items.
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* @param string $flags Special item flags.
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* @param int $type The tag/term type.
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*
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* @return string HTML formatted output.
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*/
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function wtagblock($uid, $count = 0, $owner_id = 0, $flags = '', $type = TERM_HASHTAG)
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{
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$o = '';
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$r = tagadelic($uid, $count, $owner_id, $flags, $type);
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if (count($r)) {
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$contact = dba::selectFirst('contact', ['url'], ['id' => $uid]);
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$url = System::removedBaseUrl($contact['url']);
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foreach ($r as $rr) {
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$tag['level'] = $rr[2];
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$tag['url'] = $url . '?tag=' . urlencode($rr[0]);
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$tag['name'] = $rr[0];
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$tags[] = $tag;
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}
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$tpl = get_markup_template('tagblock_widget.tpl');
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$o = replace_macros($tpl, array(
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'$title' => t('Tags'),
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'$tags' => $tags
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));
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}
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return $o;
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}
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/**
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* @brief Calculate weighting of tags according to the frequency of use.
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*
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* @param array $arr Array of tags/terms with tag/term name and total count of use.
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* @return array Alphabetical sorted array of used tags/terms of an user.
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*/
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function tag_calc($arr)
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{
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$tags = array();
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$min = 1e9;
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$max = -1e9;
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$x = 0;
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if (!$arr) {
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return array();
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}
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foreach ($arr as $rr) {
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$tags[$x][0] = $rr['term'];
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$tags[$x][1] = log($rr['total']);
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$tags[$x][2] = 0;
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$min = min($min, $tags[$x][1]);
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$max = max($max, $tags[$x][1]);
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$x ++;
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}
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usort($tags, 'tags_sort');
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$range = max(.01, $max - $min) * 1.0001;
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for ($x = 0; $x < count($tags); $x ++) {
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$tags[$x][2] = 1 + floor(9 * ($tags[$x][1] - $min) / $range);
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}
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return $tags;
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}
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/**
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* @brief Compare function to sort tags/terms alphabetically.
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*
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* @param type $a
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* @param type $b
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*
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* @return int
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*/
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function tags_sort($a, $b)
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{
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if (strtolower($a[0]) == strtolower($b[0])) {
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return 0;
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}
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return ((strtolower($a[0]) < strtolower($b[0])) ? -1 : 1);
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}
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/**
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* @brief Insert a tag cloud widget for the present profile.
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*
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* @param int $limit Max number of displayed tags.
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* @return string HTML formattat output.
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*/
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function tagcloud_wall_widget($limit = 50)
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{
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$a = get_app();
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if (!$a->profile['profile_uid'] || !$a->profile['url']) {
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return '';
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}
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if (Feature::isEnabled($a->profile['profile_uid'], 'tagadelic')) {
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$owner_id = Contact::getIdForURL($a->profile['url']);
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if (!$owner_id) {
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return '';
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}
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return wtagblock($a->profile['profile_uid'], $limit, $owner_id, 'wall');
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}
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return '';
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}
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