friendica/include/tags.php

116 lines
3.7 KiB
PHP

<?php
function create_tags_from_item($itemid) {
global $a;
$profile_base = $a->get_baseurl();
$profile_data = parse_url($profile_base);
$profile_base_friendica = $profile_data['host'].$profile_data['path']."/profile/";
$profile_base_diaspora = $profile_data['host'].$profile_data['path']."/u/";
$searchpath = $a->get_baseurl()."/search?tag=";
$messages = q("SELECT `guid`, `uid`, `id`, `edited`, `deleted`, `title`, `body`, `tag`, `parent` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
if (!$messages)
return;
$message = $messages[0];
// Clean up all tags
q("DELETE FROM `term` WHERE `otype` = %d AND `oid` = %d AND `type` IN (%d, %d)",
intval(TERM_OBJ_POST),
intval($itemid),
intval(TERM_HASHTAG),
intval(TERM_MENTION));
if ($message["deleted"])
return;
$cachefile = get_cachefile($message["guid"]."-".hash("md5", $message['body']));
if (($cachefile != '') AND !file_exists($cachefile)) {
$s = prepare_text($message['body']);
$stamp1 = microtime(true);
file_put_contents($cachefile, $s);
$a->save_timestamp($stamp1, "file");
logger('create_tags_from_item: put item '.$message["id"].' into cachefile '.$cachefile);
}
$taglist = explode(",", $message["tag"]);
$tags = "";
foreach ($taglist as $tag)
if ((substr(trim($tag), 0, 1) == "#") OR (substr(trim($tag), 0, 1) == "@"))
$tags .= " ".trim($tag);
else
$tags .= " #".trim($tag);
$data = " ".$message["title"]." ".$message["body"]." ".$tags." ";
$tags = array();
$pattern = "/\W\#([^\[].*?)[\s'\".,:;\?!\[\]\/]/ism";
if (preg_match_all($pattern, $data, $matches))
foreach ($matches[1] as $match)
$tags["#".strtolower($match)] = ""; // $searchpath.strtolower($match);
$pattern = "/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism";
if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
foreach ($matches as $match)
$tags[$match[1].strtolower(trim($match[3], ',.:;[]/\"?!'))] = $match[2];
}
foreach ($tags as $tag=>$link) {
if (substr(trim($tag), 0, 1) == "#") {
// try to ignore #039 or #1 or anything like that
if(ctype_digit(substr(trim($tag),1)))
continue;
// try to ignore html hex escapes, e.g. #x2317
if((substr(trim($tag),1,1) == 'x' || substr(trim($tag),1,1) == 'X') && ctype_digit(substr(trim($tag),2)))
continue;
$type = TERM_HASHTAG;
$term = substr($tag, 1);
} elseif (substr(trim($tag), 0, 1) == "@") {
$type = TERM_MENTION;
$term = substr($tag, 1);
} else { // This shouldn't happen
$type = TERM_HASHTAG;
$term = $tag;
}
$r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`) VALUES (%d, %d, %d, %d, '%s', '%s')",
intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval($type), dbesc($term), dbesc($link));
// Search for mentions
if ((substr($tag, 0, 1) == '@') AND (strpos($link, $profile_base_friendica) OR strpos($link, $profile_base_diaspora))) {
$users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
foreach ($users AS $user) {
if ($user["uid"] == $message["uid"]) {
q("UPDATE `item` SET `mention` = 1 WHERE `id` = %d", intval($itemid));
q("UPDATE `thread` SET `mention` = 1 WHERE `iid` = %d", intval($message["parent"]));
}
}
}
}
}
function create_tags_from_itemuri($itemuri, $uid) {
$messages = q("SELECT `id` FROM `item` WHERE uri ='%s' AND uid=%d", dbesc($itemuri), intval($uid));
if(count($messages)) {
foreach ($messages as $message)
create_tags_from_item($message["id"]);
}
}
function update_items() {
//$messages = q("SELECT `id` FROM `item` where tag !='' ORDER BY `created` DESC limit 10");
$messages = q("SELECT `id` FROM `item` where tag !=''");
foreach ($messages as $message)
create_tags_from_item($message["id"]);
}
?>