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<?php
class RSSUtils {
static function calculate_article_hash($article, $pluginhost) {
$tmp = "";
$ignored_fields = [ "feed", "guid", "guid_hashed", "owner_uid", "force_catchup" ];
foreach ($article as $k => $v) {
if (in_array($k, $ignored_fields))
continue;
if ($k != "feed" && isset($v)) {
$x = strip_tags(
is_array($v) ? implode(",", array_keys($v)) : $v);
$tmp .= sha1("$k:" . sha1($x));
}
}
return sha1(implode(",", $pluginhost->get_plugin_names()) . $tmp);
}
// Strips utf8mb4 characters (i.e. emoji) for mysql
static function strip_utf8mb4($str) {
return preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $str);
}
static function cleanup_feed_browser() {
$pdo = Db::pdo();
$pdo->query("DELETE FROM ttrss_feedbrowser_cache");
}
static function cleanup_feed_icons() {
$pdo = Db::pdo();
$sth = $pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ?");
// check icon files once every Config::get(Config::CACHE_MAX_DAYS) days
$icon_files = array_filter(glob(Config::get(Config::ICONS_DIR) . "/*.ico"),
function($f) { return filemtime($f) < time() - 86400 * Config::get(Config::CACHE_MAX_DAYS); });
foreach ($icon_files as $icon) {
$feed_id = basename($icon, ".ico");
$sth->execute([$feed_id]);
if ($sth->fetch()) {
@touch($icon);
} else {
Debug::log("Removing orphaned feed icon: $icon");
unlink($icon);
}
}
}
static function update_daemon_common($limit = null, $options = []) {
if (!$limit) $limit = Config::get(Config::DAEMON_FEED_LIMIT);
if (get_schema_version() != SCHEMA_VERSION) {
die("Schema version is wrong, please upgrade the database.\n");
}
$pdo = Db::pdo();
if (!Config::get(Config::SINGLE_USER_MODE) && Config::get(Config::DAEMON_UPDATE_LOGIN_LIMIT) > 0) {
$login_limit = (int) Config::get(Config::DAEMON_UPDATE_LOGIN_LIMIT);
if (Config::get(Config::DB_TYPE) == "pgsql") {
$login_thresh_qpart = "AND last_login >= NOW() - INTERVAL '$login_limit days'";
} else {
$login_thresh_qpart = "AND last_login >= DATE_SUB(NOW(), INTERVAL $login_limit DAY)";
}
} else {
$login_thresh_qpart = "";
}
$default_interval = (int) Prefs::get_default(Prefs::DEFAULT_UPDATE_INTERVAL);
if (Config::get(Config::DB_TYPE) == "pgsql") {
$update_limit_qpart = "AND ((
update_interval = 0
AND (p.value IS NULL OR p.value != '-1')
AND last_updated < NOW() - CAST((COALESCE(p.value, '$default_interval') || ' minutes') AS INTERVAL)
) OR (
update_interval > 0
AND last_updated < NOW() - CAST((update_interval || ' minutes') AS INTERVAL)
) OR (
update_interval >= 0
AND (p.value IS NULL OR p.value != '-1')
AND (last_updated = '1970-01-01 00:00:00' OR last_updated IS NULL)
))";
} else {
$update_limit_qpart = "AND ((
update_interval = 0
AND (p.value IS NULL OR p.value != '-1')
AND last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(COALESCE(p.value, '$default_interval'), SIGNED INTEGER) MINUTE)
) OR (
update_interval > 0
AND last_updated < DATE_SUB(NOW(), INTERVAL update_interval MINUTE)
) OR (
update_interval >= 0
AND (p.value IS NULL OR p.value != '-1')
AND (last_updated = '1970-01-01 00:00:00' OR last_updated IS NULL)
))";
}
// Test if feed is currently being updated by another process.
if (Config::get(Config::DB_TYPE) == "pgsql") {
$updstart_thresh_qpart = "AND (last_update_started IS NULL OR last_update_started < NOW() - INTERVAL '10 minutes')";
} else {
$updstart_thresh_qpart = "AND (last_update_started IS NULL OR last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
}
$query_limit = $limit ? sprintf("LIMIT %d", $limit) : "";
// Update the least recently updated feeds first
$query_order = "ORDER BY last_updated";
if (Config::get(Config::DB_TYPE) == "pgsql")
$query_order .= " NULLS FIRST";
$query = "SELECT f.feed_url, f.last_updated
FROM
ttrss_feeds f, ttrss_users u LEFT JOIN ttrss_user_prefs2 p ON
(p.owner_uid = u.id AND profile IS NULL AND pref_name = 'DEFAULT_UPDATE_INTERVAL')
WHERE
f.owner_uid = u.id
$login_thresh_qpart
$update_limit_qpart
$updstart_thresh_qpart
$query_order $query_limit";
//print "$query\n";
$res = $pdo->query($query);
$feeds_to_update = array();
while ($line = $res->fetch()) {
array_push($feeds_to_update, $line['feed_url']);
}
Debug::log(sprintf("Scheduled %d feeds to update...", count($feeds_to_update)));
// Update last_update_started before actually starting the batch
// in order to minimize collision risk for parallel daemon tasks
if (count($feeds_to_update) > 0) {
$feeds_qmarks = arr_qmarks($feeds_to_update);
$tmph = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE feed_url IN ($feeds_qmarks)");
$tmph->execute($feeds_to_update);
}
$nf = 0;
$bstarted = microtime(true);
$batch_owners = [];
$user_query = "SELECT f.id,
last_updated,
f.owner_uid,
u.login AS owner,
f.title
FROM ttrss_feeds f, ttrss_users u LEFT JOIN ttrss_user_prefs2 p ON
(p.owner_uid = u.id AND profile IS NULL AND pref_name = 'DEFAULT_UPDATE_INTERVAL')
WHERE
f.owner_uid = u.id
AND feed_url = :feed
$login_thresh_qpart
$update_limit_qpart
ORDER BY f.id $query_limit";
//print "$user_query\n";
// since we have feed xml cached, we can deal with other feeds with the same url
$usth = $pdo->prepare($user_query);
foreach ($feeds_to_update as $feed) {
Debug::log("Base feed: $feed");
$usth->execute(["feed" => $feed]);
if ($tline = $usth->fetch()) {
Debug::log(sprintf("=> %s (ID: %d, U: %s [%d]), last updated: %s", $tline["title"], $tline["id"],
$tline["owner"], $tline["owner_uid"],
$tline["last_updated"] ? $tline["last_updated"] : "never"));
if (!in_array($tline["owner_uid"], $batch_owners))
array_push($batch_owners, $tline["owner_uid"]);
$fstarted = microtime(true);
$quiet = (isset($options["quiet"])) ? "--quiet" : "";
$log = function_exists("flock") && isset($options['log']) ? '--log '.$options['log'] : '';
$log_level = isset($options['log-level']) ? '--log-level '.$options['log-level'] : '';
/* shared hosting may have this disabled and it's not strictly required */
if (self::function_enabled('passthru')) {
$exit_code = 0;
passthru(Config::get(Config::PHP_EXECUTABLE) . " update.php --update-feed " . $tline["id"] . " --pidlock feed-" . $tline["id"] . " $quiet $log $log_level", $exit_code);
Debug::log(sprintf("<= %.4f (sec) exit code: %d", microtime(true) - $fstarted, $exit_code));
// -1 can be caused by a SIGCHLD handler which daemon master process installs (not every setup, apparently)
if ($exit_code != 0 && $exit_code != -1) {
$festh = $pdo->prepare("SELECT last_error FROM ttrss_feeds WHERE id = ?");
$festh->execute([$tline["id"]]);
if ($ferow = $festh->fetch()) {
$error_message = $ferow["last_error"];
} else {
$error_message = "N/A";
}
Debug::log("!! Last error: $error_message");
Logger::log(E_USER_NOTICE,
sprintf("Update process for feed %d (%s, owner UID: %d) failed with exit code: %d (%s).",
$tline["id"], clean($tline["title"]), $tline["owner_uid"], $exit_code, clean($error_message)));
$combined_error_message = sprintf("Update process failed with exit code: %d (%s)",
$exit_code, clean($error_message));
# mark failed feed as having an update error (unless it is already marked)
$fusth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ? WHERE id = ? AND last_error = ''");
$fusth->execute([$combined_error_message, $tline["id"]]);
}
} else {
try {
if (!self::update_rss_feed($tline["id"], true)) {
Logger::log(E_USER_NOTICE,
sprintf("Update request for feed %d (%s, owner UID: %d) failed: %s.",
$tline["id"], clean($tline["title"]), $tline["owner_uid"], clean(UrlHelper::$fetch_last_error)));
}
Debug::log(sprintf("<= %.4f (sec) (not using a separate process)", microtime(true) - $fstarted));
} catch (PDOException $e) {
Logger::log_error(E_USER_WARNING, $e->getMessage(), $e->getFile(), $e->getLine(), $e->getTraceAsString());
try {
$pdo->rollback();
} catch (PDOException $e) {
// it doesn't matter if there wasn't actually anything to rollback, PDO Exception can be
// thrown outside of an active transaction during feed update
}
}
}
++$nf;
}
}
if ($nf > 0) {
Debug::log(sprintf("Processed %d feeds in %.4f (sec), %.4f (sec/feed avg)", $nf,
microtime(true) - $bstarted, (microtime(true) - $bstarted) / $nf));
}
foreach ($batch_owners as $owner_uid) {
Debug::log("Running housekeeping tasks for user $owner_uid...");
self::housekeeping_user($owner_uid);
}
// Send feed digests by email if needed.
Digest::send_headlines_digests();
return $nf;
}
// this is used when subscribing
static function set_basic_feed_info($feed) {
$pdo = Db::pdo();
$sth = $pdo->prepare("SELECT owner_uid,feed_url,auth_pass,auth_login
FROM ttrss_feeds WHERE id = ?");
$sth->execute([$feed]);
if ($row = $sth->fetch()) {
$owner_uid = $row["owner_uid"];
$auth_login = $row["auth_login"];
$auth_pass = $row["auth_pass"];
$fetch_url = $row["feed_url"];
$pluginhost = new PluginHost();
$user_plugins = get_pref(Prefs::_ENABLED_PLUGINS, $owner_uid);
$pluginhost->load(Config::get(Config::PLUGINS), PluginHost::KIND_ALL);
$pluginhost->load((string)$user_plugins, PluginHost::KIND_USER, $owner_uid);
//$pluginhost->load_data();
$basic_info = [];
$pluginhost->run_hooks_callback(PluginHost::HOOK_FEED_BASIC_INFO, function ($result) use (&$basic_info) {
$basic_info = $result;
}, $basic_info, $fetch_url, $owner_uid, $feed, $auth_login, $auth_pass);
if (!$basic_info) {
$feed_data = UrlHelper::fetch($fetch_url, false,
$auth_login, $auth_pass, false,
Config::get(Config::FEED_FETCH_TIMEOUT),
0);
$feed_data = trim($feed_data);
$rss = new FeedParser($feed_data);
$rss->init();
if (!$rss->error()) {
$basic_info = array(
'title' => mb_substr(clean($rss->get_title()), 0, 199),
'site_url' => mb_substr(rewrite_relative_url($fetch_url, clean($rss->get_link())), 0, 245)
);
}
}
if ($basic_info && is_array($basic_info)) {
$sth = $pdo->prepare("SELECT title, site_url FROM ttrss_feeds WHERE id = ?");
$sth->execute([$feed]);
if ($row = $sth->fetch()) {
$registered_title = $row["title"];
$orig_site_url = $row["site_url"];
if ($basic_info['title'] && (!$registered_title || $registered_title == "[Unknown]")) {
$sth = $pdo->prepare("UPDATE ttrss_feeds SET
title = ? WHERE id = ?");
$sth->execute([$basic_info['title'], $feed]);
}
if ($basic_info['site_url'] && $orig_site_url != $basic_info['site_url']) {
$sth = $pdo->prepare("UPDATE ttrss_feeds SET
site_url = ? WHERE id = ?");
$sth->execute([$basic_info['site_url'], $feed]);
}
}
}
}
}
static function update_rss_feed($feed, $no_cache = false) {
Debug::log("start", Debug::$LOG_VERBOSE);
$pdo = Db::pdo();
$sth = $pdo->prepare("SELECT title, site_url FROM ttrss_feeds WHERE id = ?");
$sth->execute([$feed]);
if (!$row = $sth->fetch()) {
Debug::log("feed $feed not found, skipping.");
user_error("Attempt to update unknown/invalid feed $feed", E_USER_WARNING);
return false;
}
$title = $row["title"];
$site_url = $row["site_url"];
// feed was batch-subscribed or something, we need to get basic info
// this is not optimal currently as it fetches stuff separately TODO: optimize
if ($title == "[Unknown]" || !$title || !$site_url) {
Debug::log("setting basic feed info for $feed [$title, $site_url]...");
self::set_basic_feed_info($feed);
}
$sth = $pdo->prepare("SELECT id,update_interval,auth_login,
feed_url,auth_pass,cache_images,
mark_unread_on_update, owner_uid,
auth_pass_encrypted, feed_language,
last_modified,
".SUBSTRING_FOR_DATE."(last_unconditional, 1, 19) AS last_unconditional
FROM ttrss_feeds WHERE id = ?");
$sth->execute([$feed]);
if ($row = $sth->fetch()) {
$owner_uid = $row["owner_uid"];
$mark_unread_on_update = $row["mark_unread_on_update"];
$sth = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE id = ?");
$sth->execute([$feed]);
$auth_login = $row["auth_login"];
$auth_pass = $row["auth_pass"];
$stored_last_modified = $row["last_modified"];
$last_unconditional = $row["last_unconditional"];
$cache_images = $row["cache_images"];
$fetch_url = $row["feed_url"];
$feed_language = mb_strtolower($row["feed_language"]);
if (!$feed_language)
$feed_language = mb_strtolower(get_pref(Prefs::DEFAULT_SEARCH_LANGUAGE, $owner_uid));
if (!$feed_language)
$feed_language = 'simple';
} else {
return false;
}
$date_feed_processed = date('Y-m-d H:i');
$cache_filename = Config::get(Config::CACHE_DIR) . "/feeds/" . sha1($fetch_url) . ".xml";
$pluginhost = new PluginHost();
$user_plugins = get_pref(Prefs::_ENABLED_PLUGINS, $owner_uid);
$pluginhost->load(Config::get(Config::PLUGINS), PluginHost::KIND_ALL);
$pluginhost->load((string)$user_plugins, PluginHost::KIND_USER, $owner_uid);
//$pluginhost->load_data();
$rss_hash = false;
$force_refetch = isset($_REQUEST["force_refetch"]);
$feed_data = "";
Debug::log("running HOOK_FETCH_FEED handlers...", Debug::$LOG_VERBOSE);
$start_ts = microtime(true);
$last_article_timestamp = 0;
$pluginhost->chain_hooks_callback(PluginHost::HOOK_FETCH_FEED,
function ($result, $plugin) use (&$feed_data, $start_ts) {
$feed_data = $result;
Debug::log(sprintf("=== %.4f (sec) %s", microtime(true) - $start_ts, get_class($plugin)), Debug::$LOG_VERBOSE);
},
$feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass);
if ($feed_data) {
Debug::log("feed data has been modified by a plugin.", Debug::$LOG_VERBOSE);
} else {
Debug::log("feed data has not been modified by a plugin.", Debug::$LOG_VERBOSE);
}
// try cache
if (!$feed_data &&
file_exists($cache_filename) &&
is_readable($cache_filename) &&
!$auth_login && !$auth_pass &&
filemtime($cache_filename) > time() - 30) {
Debug::log("using local cache [$cache_filename].", Debug::$LOG_VERBOSE);
@$feed_data = file_get_contents($cache_filename);
if ($feed_data) {
$rss_hash = sha1($feed_data);
}
} else {
Debug::log("local cache will not be used for this feed", Debug::$LOG_VERBOSE);
}
// fetch feed from source
if (!$feed_data) {
Debug::log("last unconditional update request: $last_unconditional", Debug::$LOG_VERBOSE);
if (ini_get("open_basedir") && function_exists("curl_init")) {
Debug::log("not using CURL due to open_basedir restrictions", Debug::$LOG_VERBOSE);
}
if (time() - strtotime($last_unconditional) > Config::get(Config::MAX_CONDITIONAL_INTERVAL)) {
Debug::log("maximum allowed interval for conditional requests exceeded, forcing refetch", Debug::$LOG_VERBOSE);
$force_refetch = true;
} else {
Debug::log("stored last modified for conditional request: $stored_last_modified", Debug::$LOG_VERBOSE);
}
Debug::log("fetching [$fetch_url] (force_refetch: $force_refetch)...", Debug::$LOG_VERBOSE);
$feed_data = UrlHelper::fetch([
"url" => $fetch_url,
"login" => $auth_login,
"pass" => $auth_pass,
"timeout" => $no_cache ? Config::get(Config::FEED_FETCH_NO_CACHE_TIMEOUT) : Config::get(Config::FEED_FETCH_TIMEOUT),
"last_modified" => $force_refetch ? "" : $stored_last_modified
]);
$feed_data = trim($feed_data);
Debug::log("fetch done.", Debug::$LOG_VERBOSE);
Debug::log("effective URL (after redirects): " . clean(UrlHelper::$fetch_effective_url) . " (IP: ".UrlHelper::$fetch_effective_ip_addr.")", Debug::$LOG_VERBOSE);
Debug::log("source last modified: " . UrlHelper::$fetch_last_modified, Debug::$LOG_VERBOSE);
if ($feed_data && UrlHelper::$fetch_last_modified != $stored_last_modified) {
$sth = $pdo->prepare("UPDATE ttrss_feeds SET last_modified = ? WHERE id = ?");
$sth->execute([substr(UrlHelper::$fetch_last_modified, 0, 245), $feed]);
}
// cache vanilla feed data for re-use
if ($feed_data && !$auth_pass && !$auth_login && is_writable(Config::get(Config::CACHE_DIR) . "/feeds")) {
$new_rss_hash = sha1($feed_data);
if ($new_rss_hash != $rss_hash) {
Debug::log("saving $cache_filename", Debug::$LOG_VERBOSE);
@file_put_contents($cache_filename, $feed_data);
}
}
}
if (!$feed_data) {
Debug::log("unable to fetch: ".UrlHelper::$fetch_last_error." [".UrlHelper::$fetch_last_error_code."]", Debug::$LOG_VERBOSE);
// If-Modified-Since
if (UrlHelper::$fetch_last_error_code == 304) {
Debug::log("source claims data not modified, nothing to do.", Debug::$LOG_VERBOSE);
$error_message = "";
$sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
last_successful_update = NOW(),
last_updated = NOW() WHERE id = ?");
} else {
$error_message = UrlHelper::$fetch_last_error;
$sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
last_updated = NOW() WHERE id = ?");
}
$sth->execute([$error_message, $feed]);
return $error_message == "";
}
Debug::log("running HOOK_FEED_FETCHED handlers...", Debug::$LOG_VERBOSE);
$feed_data_checksum = md5($feed_data);
$start_ts = microtime(true);
$pluginhost->chain_hooks_callback(PluginHost::HOOK_FEED_FETCHED,
function ($result, $plugin) use (&$feed_data, $start_ts) {
$feed_data = $result;
Debug::log(sprintf("=== %.4f (sec) %s", microtime(true) - $start_ts, get_class($plugin)), Debug::$LOG_VERBOSE);
},
$feed_data, $fetch_url, $owner_uid, $feed);
if (md5($feed_data) != $feed_data_checksum) {
Debug::log("feed data has been modified by a plugin.", Debug::$LOG_VERBOSE);
} else {
Debug::log("feed data has not been modified by a plugin.", Debug::$LOG_VERBOSE);
}
$rss = new FeedParser($feed_data);
$rss->init();
if (!$rss->error()) {
Debug::log("running HOOK_FEED_PARSED handlers...", Debug::$LOG_VERBOSE);
// We use local pluginhost here because we need to load different per-user feed plugins
$start_ts = microtime(true);
$pluginhost->chain_hooks_callback(PluginHost::HOOK_FEED_PARSED,
function($result, $plugin) use ($start_ts) {
Debug::log(sprintf("=== %.4f (sec) %s", microtime(true) - $start_ts, get_class($plugin)), Debug::$LOG_VERBOSE);
},
$rss, $feed);
Debug::log("language: $feed_language", Debug::$LOG_VERBOSE);
Debug::log("processing feed data...", Debug::$LOG_VERBOSE);
if (Config::get(Config::DB_TYPE) == "pgsql") {
$favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
} else {
$favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
}
$sth = $pdo->prepare("SELECT owner_uid,favicon_avg_color,
(favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
favicon_needs_check
FROM ttrss_feeds WHERE id = ?");
$sth->execute([$feed]);
if ($row = $sth->fetch()) {
$favicon_needs_check = $row["favicon_needs_check"];
$favicon_avg_color = $row["favicon_avg_color"];
$owner_uid = $row["owner_uid"];
} else {
return false;
}
$site_url = mb_substr(rewrite_relative_url($fetch_url, clean($rss->get_link())), 0, 245);
Debug::log("site_url: $site_url", Debug::$LOG_VERBOSE);
Debug::log("feed_title: " . clean($rss->get_title()), Debug::$LOG_VERBOSE);
if ($favicon_needs_check || $force_refetch) {
/* terrible hack: if we crash on floicon shit here, we won't check
* the icon avgcolor again (unless the icon got updated) */
$favicon_file = Config::get(Config::ICONS_DIR) . "/$feed.ico";
$favicon_modified = file_exists($favicon_file) ? filemtime($favicon_file) : -1;
Debug::log("checking favicon for feed $feed...", Debug::$LOG_VERBOSE);
self::check_feed_favicon($site_url, $feed);
$favicon_modified_new = file_exists($favicon_file) ? filemtime($favicon_file) : -1;
if ($favicon_modified_new > $favicon_modified)
$favicon_avg_color = '';
$favicon_colorstring = "";
if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
require_once "colors.php";
$sth = $pdo->prepare("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
id = ?");
$sth->execute([$feed]);
$favicon_color = \Colors\calculate_avg_color($favicon_file);
$favicon_colorstring = ",favicon_avg_color = " . $pdo->quote($favicon_color);
} else if ($favicon_avg_color == 'fail') {
Debug::log("floicon failed on this file, not trying to recalculate avg color", Debug::$LOG_VERBOSE);
}
$sth = $pdo->prepare("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
$favicon_colorstring WHERE id = ?");
$sth->execute([$feed]);
}
Debug::log("loading filters & labels...", Debug::$LOG_VERBOSE);
$filters = self::load_filters($feed, $owner_uid);
if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
print_r($filters);
}
Debug::log("" . count($filters) . " filters loaded.", Debug::$LOG_VERBOSE);
$items = $rss->get_items();
if (!is_array($items)) {
Debug::log("no articles found.", Debug::$LOG_VERBOSE);
$sth = $pdo->prepare("UPDATE ttrss_feeds
SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = ?");
$sth->execute([$feed]);
return true; // no articles
}
Debug::log("processing articles...", Debug::$LOG_VERBOSE);
$tstart = time();
foreach ($items as $item) {
$pdo->beginTransaction();
if (Debug::get_loglevel() >= 3) {
print_r($item);
}
if (ini_get("max_execution_time") > 0 && time() - $tstart >= ini_get("max_execution_time") * 0.7) {
Debug::log("looks like there's too many articles to process at once, breaking out", Debug::$LOG_VERBOSE);
$pdo->commit();
break;
}
$entry_guid = strip_tags($item->get_id());
if (!$entry_guid) $entry_guid = strip_tags($item->get_link());
if (!$entry_guid) $entry_guid = self::make_guid_from_title($item->get_title());
if (!$entry_guid) {
$pdo->commit();
continue;
}
$entry_guid_hashed_compat = 'SHA1:' . sha1("$owner_uid,$entry_guid");
$entry_guid_hashed = json_encode(["ver" => 2, "uid" => $owner_uid, "hash" => 'SHA1:' . sha1($entry_guid)]);
$entry_guid = "$owner_uid,$entry_guid";
Debug::log("guid $entry_guid (hash: $entry_guid_hashed compat: $entry_guid_hashed_compat)", Debug::$LOG_VERBOSE);
$entry_timestamp = (int)$item->get_date();
Debug::log("orig date: " . $item->get_date(), Debug::$LOG_VERBOSE);
$entry_title = strip_tags($item->get_title());
$entry_link = rewrite_relative_url($site_url, clean($item->get_link()));
$entry_language = mb_substr(trim($item->get_language()), 0, 2);
Debug::log("title $entry_title", Debug::$LOG_VERBOSE);
Debug::log("link $entry_link", Debug::$LOG_VERBOSE);
Debug::log("language $entry_language", Debug::$LOG_VERBOSE);
if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
$entry_content = $item->get_content();
if (!$entry_content) $entry_content = $item->get_description();
if (Debug::get_loglevel() >= 3) {
print "content: ";
print htmlspecialchars($entry_content);
print "\n";
}
$entry_comments = mb_substr(strip_tags($item->get_comments_url()), 0, 245);
$num_comments = (int) $item->get_comments_count();
$entry_author = strip_tags($item->get_author());
$entry_guid = mb_substr($entry_guid, 0, 245);
Debug::log("author $entry_author", Debug::$LOG_VERBOSE);
Debug::log("looking for tags...", Debug::$LOG_VERBOSE);
$entry_tags = $item->get_categories();
Debug::log("tags found: " . join(", ", $entry_tags), Debug::$LOG_VERBOSE);
Debug::log("done collecting data.", Debug::$LOG_VERBOSE);
$sth = $pdo->prepare("SELECT id, content_hash, lang FROM ttrss_entries
WHERE guid IN (?, ?, ?)");
$sth->execute([$entry_guid, $entry_guid_hashed, $entry_guid_hashed_compat]);
if ($row = $sth->fetch()) {
$base_entry_id = $row["id"];
$entry_stored_hash = $row["content_hash"];
$article_labels = Article::_get_labels($base_entry_id, $owner_uid);
$existing_tags = Article::_get_tags($base_entry_id, $owner_uid);
$entry_tags = array_unique(array_merge($entry_tags, $existing_tags));
} else {
$base_entry_id = false;
$entry_stored_hash = "";
$article_labels = array();
}
Debug::log("looking for enclosures...", Debug::$LOG_VERBOSE);
// enclosures
$enclosures = array();
$encs = $item->_get_enclosures();
if (is_array($encs)) {
foreach ($encs as $e) {
$pluginhost->chain_hooks_callback(PluginHost::HOOK_ENCLOSURE_IMPORTED,
function ($result) use (&$e) {
$e = $result;
},
$e, $feed);
$e_item = array(
rewrite_relative_url($site_url, $e->link),
$e->type, $e->length, $e->title, $e->width, $e->height);
// Yet another episode of "mysql utf8_general_ci is gimped"
if (Config::get(Config::DB_TYPE) == "mysql" && Config::get(Config::MYSQL_CHARSET) != "UTF8MB4") {
for ($i = 0; $i < count($e_item); $i++) {
if (is_string($e_item[$i])) {
$e_item[$i] = self::strip_utf8mb4($e_item[$i]);
}
}
}
array_push($enclosures, $e_item);
}
}
$article = array("owner_uid" => $owner_uid, // read only
"guid" => $entry_guid, // read only
"guid_hashed" => $entry_guid_hashed, // read only
"title" => $entry_title,
"content" => $entry_content,
"link" => $entry_link,
"labels" => $article_labels, // current limitation: can add labels to article, can't remove them
"tags" => $entry_tags,
"author" => $entry_author,
"force_catchup" => false, // ugly hack for the time being
"score_modifier" => 0, // no previous value, plugin should recalculate score modifier based on content if needed
"language" => $entry_language,
"timestamp" => $entry_timestamp,
"num_comments" => $num_comments,
"enclosures" => $enclosures,
"feed" => array("id" => $feed,
"fetch_url" => $fetch_url,
"site_url" => $site_url,
"cache_images" => $cache_images)
);
$entry_plugin_data = "";
$entry_current_hash = self::calculate_article_hash($article, $pluginhost);
Debug::log("article hash: $entry_current_hash [stored=$entry_stored_hash]", Debug::$LOG_VERBOSE);
if ($entry_current_hash == $entry_stored_hash && !isset($_REQUEST["force_rehash"])) {
Debug::log("stored article seems up to date [IID: $base_entry_id], updating timestamp only", Debug::$LOG_VERBOSE);
// we keep encountering the entry in feeds, so we need to
// update date_updated column so that we don't get horrible
// dupes when the entry gets purged and reinserted again e.g.
// in the case of SLOW SLOW OMG SLOW updating feeds
$sth = $pdo->prepare("UPDATE ttrss_entries SET date_updated = NOW()
WHERE id = ?");
$sth->execute([$base_entry_id]);
$pdo->commit();
continue;
}
Debug::log("hash differs, applying plugin filters:", Debug::$LOG_VERBOSE);
$start_ts = microtime(true);
$pluginhost->chain_hooks_callback(PluginHost::HOOK_ARTICLE_FILTER,
function ($result, $plugin) use (&$article, &$entry_plugin_data, $start_ts) {
$article = $result;
$entry_plugin_data .= mb_strtolower(get_class($plugin)) . ",";
Debug::log(sprintf("=== %.4f (sec) %s", microtime(true) - $start_ts, get_class($plugin)),
Debug::$LOG_VERBOSE);
},
$article);
if (Debug::get_loglevel() >= 3) {
print "processed content: ";
print htmlspecialchars($article["content"]);
print "\n";
}
Debug::log("plugin data: $entry_plugin_data", Debug::$LOG_VERBOSE);
// Workaround: 4-byte unicode requires utf8mb4 in MySQL. See https://tt-rss.org/forum/viewtopic.php?f=1&t=3377&p=20077#p20077
if (Config::get(Config::DB_TYPE) == "mysql" && Config::get(Config::MYSQL_CHARSET) != "UTF8MB4") {
foreach ($article as $k => $v) {
// i guess we'll have to take the risk of 4byte unicode labels & tags here
if (is_string($article[$k])) {
$article[$k] = self::strip_utf8mb4($v);
}
}
}
/* Collect article tags here so we could filter by them: */
$matched_rules = [];
$matched_filters = [];
$article_filters = self::get_article_filters($filters, $article["title"],
$article["content"], $article["link"], $article["author"],
$article["tags"], $matched_rules, $matched_filters);
// $article_filters should be renamed to something like $filter_actions; actual filter objects are in $matched_filters
$pluginhost->run_hooks(PluginHost::HOOK_FILTER_TRIGGERED,
$feed, $owner_uid, $article, $matched_filters, $matched_rules, $article_filters);
$matched_filter_ids = array_map(function($f) { return $f['id']; }, $matched_filters);
if (count($matched_filter_ids) > 0) {
$filter_ids_qmarks = arr_qmarks($matched_filter_ids);
$fsth = $pdo->prepare("UPDATE ttrss_filters2 SET last_triggered = NOW() WHERE
id IN ($filter_ids_qmarks) AND owner_uid = ?");
$fsth->execute(array_merge($matched_filter_ids, [$owner_uid]));
}
if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
Debug::log("matched filters: ", Debug::$LOG_VERBOSE);
if (count($matched_filters) != 0) {
print_r($matched_filters);
}
Debug::log("matched filter rules: ", Debug::$LOG_VERBOSE);
if (count($matched_rules) != 0) {
print_r($matched_rules);
}
Debug::log("filter actions: ", Debug::$LOG_VERBOSE);
if (count($article_filters) != 0) {
print_r($article_filters);
}
}
$plugin_filter_names = self::find_article_filters($article_filters, "plugin");
$plugin_filter_actions = $pluginhost->get_filter_actions();
if (count($plugin_filter_names) > 0) {
Debug::log("applying plugin filter actions...", Debug::$LOG_VERBOSE);
foreach ($plugin_filter_names as $pfn) {
list($pfclass,$pfaction) = explode(":", $pfn["param"]);
if (isset($plugin_filter_actions[$pfclass])) {
$plugin = $pluginhost->get_plugin($pfclass);
Debug::log("... $pfclass: $pfaction", Debug::$LOG_VERBOSE);
if ($plugin) {
$start = microtime(true);
$article = $plugin->hook_article_filter_action($article, $pfaction);
Debug::log(sprintf("=== %.4f (sec)", microtime(true) - $start), Debug::$LOG_VERBOSE);
} else {
Debug::log("??? $pfclass: plugin object not found.", Debug::$LOG_VERBOSE);
}
} else {
Debug::log("??? $pfclass: filter plugin not registered.", Debug::$LOG_VERBOSE);
}
}
}
$entry_tags = $article["tags"];
$entry_title = strip_tags($article["title"]);
$entry_author = mb_substr(strip_tags($article["author"]), 0, 245);
$entry_link = strip_tags($article["link"]);
$entry_content = $article["content"]; // escaped below
$entry_force_catchup = $article["force_catchup"];
$article_labels = $article["labels"];
$entry_score_modifier = (int) $article["score_modifier"];
$entry_language = $article["language"];
$entry_timestamp = $article["timestamp"];
$num_comments = $article["num_comments"];
$enclosures = $article["enclosures"];
if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
$entry_timestamp = time();
}
$entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
Debug::log("date $entry_timestamp [$entry_timestamp_fmt]", Debug::$LOG_VERBOSE);
Debug::log("num_comments: $num_comments", Debug::$LOG_VERBOSE);
if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
Debug::log("article labels:", Debug::$LOG_VERBOSE);
if (count($article_labels) != 0) {
print_r($article_labels);
}
}
Debug::log("force catchup: $entry_force_catchup", Debug::$LOG_VERBOSE);
if ($cache_images)
self::cache_media($entry_content, $site_url);
$csth = $pdo->prepare("SELECT id FROM ttrss_entries
WHERE guid IN (?, ?, ?)");
$csth->execute([$entry_guid, $entry_guid_hashed, $entry_guid_hashed_compat]);
if (!$row = $csth->fetch()) {
Debug::log("base guid [$entry_guid or $entry_guid_hashed] not found, creating...", Debug::$LOG_VERBOSE);
// base post entry does not exist, create it
$usth = $pdo->prepare(
"INSERT INTO ttrss_entries
(title,
guid,
link,
updated,
content,
content_hash,
no_orig_date,
date_updated,
date_entered,
comments,
num_comments,
plugin_data,
lang,
author)
VALUES
(?, ?, ?, ?, ?, ?,
false,
NOW(),
?, ?, ?, ?, ?, ?)");
$usth->execute([$entry_title,
$entry_guid_hashed,
$entry_link,
$entry_timestamp_fmt,
"$entry_content",
$entry_current_hash,
$date_feed_processed,
$entry_comments,
(int)$num_comments,
$entry_plugin_data,
"$entry_language",
"$entry_author"]);
}
$csth->execute([$entry_guid, $entry_guid_hashed, $entry_guid_hashed_compat]);
$entry_ref_id = 0;
$entry_int_id = 0;
if ($row = $csth->fetch()) {
Debug::log("base guid found, checking for user record", Debug::$LOG_VERBOSE);
$ref_id = $row['id'];
$entry_ref_id = $ref_id;
if (self::find_article_filter($article_filters, "filter")) {
Debug::log("article is filtered out, nothing to do.", Debug::$LOG_VERBOSE);
$pdo->commit();
continue;
}
$score = self::calculate_article_score($article_filters) + $entry_score_modifier;
Debug::log("initial score: $score [including plugin modifier: $entry_score_modifier]", Debug::$LOG_VERBOSE);
// check for user post link to main table
$sth = $pdo->prepare("SELECT ref_id, int_id FROM ttrss_user_entries WHERE
ref_id = ? AND owner_uid = ?");
$sth->execute([$ref_id, $owner_uid]);
// okay it doesn't exist - create user entry
if ($row = $sth->fetch()) {
$entry_ref_id = $row["ref_id"];
$entry_int_id = $row["int_id"];
Debug::log("user record FOUND: RID: $entry_ref_id, IID: $entry_int_id", Debug::$LOG_VERBOSE);
} else {
Debug::log("user record not found, creating...", Debug::$LOG_VERBOSE);
if ($score >= -500 && !self::find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) {
$unread = 1;
$last_read_qpart = null;
} else {
$unread = 0;
$last_read_qpart = date("Y-m-d H:i"); // we can't use NOW() here because it gets quoted
}
if (self::find_article_filter($article_filters, 'mark') || $score > 1000) {
$marked = 1;
} else {
$marked = 0;
}
if (self::find_article_filter($article_filters, 'publish')) {
$published = 1;
} else {
$published = 0;
}
$last_marked = ($marked == 1) ? 'NOW()' : 'NULL';
$last_published = ($published == 1) ? 'NOW()' : 'NULL';
$sth = $pdo->prepare(
"INSERT INTO ttrss_user_entries
(ref_id, owner_uid, feed_id, unread, last_read, marked,
published, score, tag_cache, label_cache, uuid,
last_marked, last_published)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, '', '', '', ".$last_marked.", ".$last_published.")");
$sth->execute([$ref_id, $owner_uid, $feed, $unread, $last_read_qpart, $marked,
$published, $score]);
$sth = $pdo->prepare("SELECT int_id FROM ttrss_user_entries WHERE
ref_id = ? AND owner_uid = ? AND
feed_id = ? LIMIT 1");
$sth->execute([$ref_id, $owner_uid, $feed]);
if ($row = $sth->fetch())
$entry_int_id = $row['int_id'];
}
Debug::log("resulting RID: $entry_ref_id, IID: $entry_int_id", Debug::$LOG_VERBOSE);
if (Config::get(Config::DB_TYPE) == "pgsql")
$tsvector_qpart = "tsvector_combined = to_tsvector(:ts_lang, :ts_content),";
else
$tsvector_qpart = "";
$sth = $pdo->prepare("UPDATE ttrss_entries
SET title = :title,
$tsvector_qpart
content = :content,
content_hash = :content_hash,
updated = :updated,
date_updated = NOW(),
num_comments = :num_comments,
plugin_data = :plugin_data,
author = :author,
lang = :lang
WHERE id = :id");
$params = [":title" => $entry_title,
":content" => "$entry_content",
":content_hash" => $entry_current_hash,
":updated" => $entry_timestamp_fmt,
":num_comments" => (int)$num_comments,
":plugin_data" => $entry_plugin_data,
":author" => "$entry_author",
":lang" => $entry_language,
":id" => $ref_id];
if (Config::get(Config::DB_TYPE) == "pgsql") {
$params[":ts_lang"] = $feed_language;
$params[":ts_content"] = mb_substr(strip_tags($entry_title . " " . $entry_content), 0, 900000);
}
$sth->execute($params);
// update aux data
$sth = $pdo->prepare("UPDATE ttrss_user_entries
SET score = ? WHERE ref_id = ?");
$sth->execute([$score, $ref_id]);
if ($mark_unread_on_update &&
!$entry_force_catchup &&
!self::find_article_filter($article_filters, 'catchup')) {
Debug::log("article updated, marking unread as requested.", Debug::$LOG_VERBOSE);
$sth = $pdo->prepare("UPDATE ttrss_user_entries
SET last_read = null, unread = true WHERE ref_id = ?");
$sth->execute([$ref_id]);
} else {
Debug::log("article updated, but we're forbidden to mark it unread.", Debug::$LOG_VERBOSE);
}
}
Debug::log("assigning labels [other]...", Debug::$LOG_VERBOSE);
foreach ($article_labels as $label) {
Labels::add_article($entry_ref_id, $label[1], $owner_uid);
}
Debug::log("assigning labels [filters]...", Debug::$LOG_VERBOSE);
self::assign_article_to_label_filters($entry_ref_id, $article_filters,
$owner_uid, $article_labels);
if ($cache_images)
self::cache_enclosures($enclosures, $site_url);
if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
Debug::log("article enclosures:", Debug::$LOG_VERBOSE);
print_r($enclosures);
}
$esth = $pdo->prepare("SELECT id FROM ttrss_enclosures
WHERE content_url = ? AND content_type = ? AND post_id = ?");
$usth = $pdo->prepare("INSERT INTO ttrss_enclosures
(content_url, content_type, title, duration, post_id, width, height) VALUES
(?, ?, ?, ?, ?, ?, ?)");
foreach ($enclosures as $enc) {
$enc_url = $enc[0];
$enc_type = $enc[1];
$enc_dur = (int)$enc[2];
$enc_title = $enc[3];
$enc_width = intval($enc[4]);
$enc_height = intval($enc[5]);
$esth->execute([$enc_url, $enc_type, $entry_ref_id]);
if (!$esth->fetch()) {
$usth->execute([$enc_url, $enc_type, (string)$enc_title, $enc_dur, $entry_ref_id, $enc_width, $enc_height]);
}
}
// check for manual tags (we have to do it here since they're loaded from filters)
foreach ($article_filters as $f) {
if ($f["type"] == "tag") {
$manual_tags = array_map('trim', explode(",", mb_strtolower($f["param"])));
foreach ($manual_tags as $tag) {
array_push($entry_tags, $tag);
}
}
}
// Skip boring tags
$boring_tags = array_map('trim',
explode(",", mb_strtolower(
get_pref(Prefs::BLACKLISTED_TAGS, $owner_uid))));
$entry_tags = FeedItem_Common::normalize_categories(
array_unique(
array_diff($entry_tags, $boring_tags)));
Debug::log("filtered tags: " . implode(", ", $entry_tags), Debug::$LOG_VERBOSE);
// Save article tags in the database
if (count($entry_tags) > 0) {
$tsth = $pdo->prepare("SELECT id FROM ttrss_tags
WHERE tag_name = ? AND post_int_id = ? AND
owner_uid = ? LIMIT 1");
$usth = $pdo->prepare("INSERT INTO ttrss_tags
(owner_uid,tag_name,post_int_id)
VALUES (?, ?, ?)");
foreach ($entry_tags as $tag) {
$tsth->execute([$tag, $entry_int_id, $owner_uid]);
if (!$tsth->fetch()) {
$usth->execute([$owner_uid, $tag, $entry_int_id]);
}
}
/* update the cache */
$tsth = $pdo->prepare("UPDATE ttrss_user_entries
SET tag_cache = ? WHERE ref_id = ?
AND owner_uid = ?");
$tsth->execute([
join(",", $entry_tags),
$entry_ref_id,
$owner_uid
]);
}
Debug::log("article processed", Debug::$LOG_VERBOSE);
$pdo->commit();
}
Debug::log("purging feed...", Debug::$LOG_VERBOSE);
Feeds::_purge($feed, 0);
$sth = $pdo->prepare("UPDATE ttrss_feeds SET
last_updated = NOW(),
last_unconditional = NOW(),
last_successful_update = NOW(),
last_error = '' WHERE id = ?");
$sth->execute([$feed]);
} else {
$error_msg = mb_substr($rss->error(), 0, 245);
Debug::log("fetch error: $error_msg", Debug::$LOG_VERBOSE);
if (count($rss->errors()) > 1) {
foreach ($rss->errors() as $error) {
Debug::log("+ $error", Debug::$LOG_VERBOSE);
}
}
$sth = $pdo->prepare("UPDATE ttrss_feeds SET
last_error = ?,
last_updated = NOW(),
last_unconditional = NOW() WHERE id = ?");
$sth->execute([$error_msg, $feed]);
unset($rss);
Debug::log("update failed.", Debug::$LOG_VERBOSE);
return false;
}
Debug::log("update done.", Debug::$LOG_VERBOSE);
return true;
}
/* TODO: move to DiskCache? */
static function cache_enclosures($enclosures, $site_url) {
$cache = new DiskCache("images");
if ($cache->is_writable()) {
foreach ($enclosures as $enc) {
if (preg_match("/(image|audio|video)/", $enc[1])) {
$src = rewrite_relative_url($site_url, $enc[0]);
$local_filename = sha1($src);
Debug::log("cache_enclosures: downloading: $src to $local_filename", Debug::$LOG_VERBOSE);
if (!$cache->exists($local_filename)) {
$file_content = UrlHelper::fetch(array("url" => $src,
"http_referrer" => $src,
"max_size" => Config::get(Config::MAX_CACHE_FILE_SIZE)));
if ($file_content) {
$cache->put($local_filename, $file_content);
} else {
Debug::log("cache_enclosures: failed with ".UrlHelper::$fetch_last_error_code.": ".UrlHelper::$fetch_last_error);
}
} else if (is_writable($local_filename)) {
$cache->touch($local_filename);
}
}
}
}
}
/* TODO: move to DiskCache? */
static function cache_media_url($cache, $url, $site_url) {
$url = rewrite_relative_url($site_url, $url);
$local_filename = sha1($url);
Debug::log("cache_media: checking $url", Debug::$LOG_VERBOSE);
if (!$cache->exists($local_filename)) {
Debug::log("cache_media: downloading: $url to $local_filename", Debug::$LOG_VERBOSE);
$file_content = UrlHelper::fetch(array("url" => $url,
"http_referrer" => $url,
"max_size" => Config::get(Config::MAX_CACHE_FILE_SIZE)));
if ($file_content) {
$cache->put($local_filename, $file_content);
} else {
Debug::log("cache_media: failed with ".UrlHelper::$fetch_last_error_code.": ".UrlHelper::$fetch_last_error);
}
} else if ($cache->is_writable($local_filename)) {
$cache->touch($local_filename);
}
}
/* TODO: move to DiskCache? */
static function cache_media($html, $site_url) {
$cache = new DiskCache("images");
if ($html && $cache->is_writable()) {
$doc = new DOMDocument();
if (@$doc->loadHTML($html)) {
$xpath = new DOMXPath($doc);
$entries = $xpath->query('(//img[@src]|//source[@src|@srcset]|//video[@poster|@src])');
foreach ($entries as $entry) {
foreach (array('src', 'poster') as $attr) {
if ($entry->hasAttribute($attr) && strpos($entry->getAttribute($attr), "data:") !== 0) {
self::cache_media_url($cache, $entry->getAttribute($attr), $site_url);
}
}
if ($entry->hasAttribute("srcset")) {
$matches = self::decode_srcset($entry->getAttribute('srcset'));
for ($i = 0; $i < count($matches); $i++) {
self::cache_media_url($cache, $matches[$i]["url"], $site_url);
}
}
}
}
}
}
static function expire_error_log() {
Debug::log("Removing old error log entries...");
$pdo = Db::pdo();
if (Config::get(Config::DB_TYPE) == "pgsql") {
$pdo->query("DELETE FROM ttrss_error_log
WHERE created_at < NOW() - INTERVAL '7 days'");
} else {
$pdo->query("DELETE FROM ttrss_error_log
WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
}
}
// deprecated; table not used
static function expire_feed_archive() {
$pdo = Db::pdo();
$pdo->query("DELETE FROM ttrss_archived_feeds");
}
static function expire_lock_files() {
Debug::log("Removing old lock files...", Debug::$LOG_VERBOSE);
$num_deleted = 0;
if (is_writable(Config::get(Config::LOCK_DIRECTORY))) {
$files = glob(Config::get(Config::LOCK_DIRECTORY) . "/*.lock");
if ($files) {
foreach ($files as $file) {
if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
unlink($file);
++$num_deleted;
}
}
}
}
Debug::log("Removed $num_deleted old lock files.");
}
/**
* Source: http://www.php.net/manual/en/function.parse-url.php#104527
* Returns the url query as associative array
*
* @param string query
* @return array params
*/
/* static function convertUrlQuery($query) {
$queryParts = explode('&', $query);
$params = array();
foreach ($queryParts as $param) {
$item = explode('=', $param);
$params[$item[0]] = $item[1];
}
return $params;
} */
static function get_article_filters($filters, $title, $content, $link, $author, $tags, &$matched_rules = false, &$matched_filters = false) {
$matches = array();
foreach ($filters as $filter) {
$match_any_rule = $filter["match_any_rule"];
$inverse = $filter["inverse"];
$filter_match = false;
$last_processed_rule = false;
foreach ($filter["rules"] as $rule) {
$match = false;
$reg_exp = str_replace('/', '\/', (string)$rule["reg_exp"]);
$reg_exp = str_replace("\n", "", $reg_exp); // reg_exp may be formatted with CRs now because of textarea, we need to strip those
$rule_inverse = $rule["inverse"];
$last_processed_rule = $rule;
if (empty($reg_exp))
continue;
switch ($rule["type"]) {
case "title":
$match = @preg_match("/$reg_exp/iu", $title);
break;
case "content":
// we don't need to deal with multiline regexps
$content = (string)preg_replace("/[\r\n\t]/", "", $content);
$match = @preg_match("/$reg_exp/iu", $content);
break;
case "both":
// we don't need to deal with multiline regexps
$content = (string)preg_replace("/[\r\n\t]/", "", $content);
$match = (@preg_match("/$reg_exp/iu", $title) || @preg_match("/$reg_exp/iu", $content));
break;
case "link":
$match = @preg_match("/$reg_exp/iu", $link);
break;
case "author":
$match = @preg_match("/$reg_exp/iu", $author);
break;
case "tag":
foreach ($tags as $tag) {
if (@preg_match("/$reg_exp/iu", $tag)) {
$match = true;
break;
}
}
break;
}
if ($rule_inverse) $match = !$match;
if ($match_any_rule) {
if ($match) {
$filter_match = true;
break;
}
} else {
$filter_match = $match;
if (!$match) {
break;
}
}
}
if ($inverse) $filter_match = !$filter_match;
if ($filter_match) {
if (is_array($matched_rules)) array_push($matched_rules, $last_processed_rule);
if (is_array($matched_filters)) array_push($matched_filters, $filter);
foreach ($filter["actions"] AS $action) {
array_push($matches, $action);
// if Stop action encountered, perform no further processing
if (isset($action["type"]) && $action["type"] == "stop") return $matches;
}
}
}
return $matches;
}
static function find_article_filter($filters, $filter_name) {
foreach ($filters as $f) {
if ($f["type"] == $filter_name) {
return $f;
};
}
return false;
}
static function find_article_filters($filters, $filter_name) {
$results = array();
foreach ($filters as $f) {
if ($f["type"] == $filter_name) {
array_push($results, $f);
};
}
return $results;
}
static function calculate_article_score($filters) {
$score = 0;
foreach ($filters as $f) {
if ($f["type"] == "score") {
$score += $f["param"];
};
}
return $score;
}
static function labels_contains_caption($labels, $caption) {
foreach ($labels as $label) {
if ($label[1] == $caption) {
return true;
}
}
return false;
}
static function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
foreach ($filters as $f) {
if ($f["type"] == "label") {
if (!self::labels_contains_caption($article_labels, $f["param"])) {
Labels::add_article($id, $f["param"], $owner_uid);
}
}
}
}
static function make_guid_from_title($title) {
return preg_replace("/[ \"\',.:;]/", "-",
mb_strtolower(strip_tags($title), 'utf-8'));
}
/* counter cache is no longer used, if called truncate leftover data */
static function cleanup_counters_cache() {
$pdo = Db::pdo();
$pdo->query("DELETE FROM ttrss_counters_cache");
$pdo->query("DELETE FROM ttrss_cat_counters_cache");
}
static function disable_failed_feeds() {
if (Config::get(Config::DAEMON_UNSUCCESSFUL_DAYS_LIMIT) > 0) {
$pdo = Db::pdo();
$pdo->beginTransaction();
$days = Config::get(Config::DAEMON_UNSUCCESSFUL_DAYS_LIMIT);
if (Config::get(Config::DB_TYPE) == "pgsql") {
$interval_query = "last_successful_update < NOW() - INTERVAL '$days days' AND last_updated > NOW() - INTERVAL '1 days'";
} else /* if (Config::get(Config::DB_TYPE) == "mysql") */ {
$interval_query = "last_successful_update < DATE_SUB(NOW(), INTERVAL $days DAY) AND last_updated > DATE_SUB(NOW(), INTERVAL 1 DAY)";
}
$sth = $pdo->prepare("SELECT id, title, owner_uid
FROM ttrss_feeds
WHERE update_interval != -1 AND last_successful_update IS NOT NULL AND $interval_query");
$sth->execute();
while ($row = $sth->fetch()) {
Logger::log(E_USER_NOTICE,
sprintf("Auto disabling feed %d (%s, UID: %d) because it failed to update for %d days.",
$row["id"], clean($row["title"]), $row["owner_uid"], Config::get(Config::DAEMON_UNSUCCESSFUL_DAYS_LIMIT)));
Debug::log(sprintf("Auto-disabling feed %d (%s) (failed to update for %d days).", $row["id"],
clean($row["title"]), Config::get(Config::DAEMON_UNSUCCESSFUL_DAYS_LIMIT)));
}
$sth = $pdo->prepare("UPDATE ttrss_feeds SET update_interval = -1 WHERE
update_interval != -1 AND last_successful_update IS NOT NULL AND $interval_query");
$sth->execute();
$pdo->commit();
}
}
static function housekeeping_user($owner_uid) {
$tmph = new PluginHost();
UserHelper::load_user_plugins($owner_uid, $tmph);
$tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING);
}
static function housekeeping_common() {
DiskCache::expire();
self::expire_lock_files();
self::expire_error_log();
self::expire_feed_archive();
self::cleanup_feed_browser();
self::cleanup_feed_icons();
self::disable_failed_feeds();
Article::_purge_orphans();
self::cleanup_counters_cache();
PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING);
}
static function check_feed_favicon($site_url, $feed) {
$icon_file = Config::get(Config::ICONS_DIR) . "/$feed.ico";
$favicon_url = self::get_favicon_url($site_url);
if (!$favicon_url) {
Debug::log("couldn't find favicon URL in $site_url", Debug::$LOG_VERBOSE);
return false;
}
// Limiting to "image" type misses those served with text/plain
$contents = UrlHelper::fetch([
'url' => $favicon_url,
'max_size' => Config::get(Config::MAX_FAVICON_FILE_SIZE),
//'type' => 'image',
]);
if (!$contents) {
Debug::log("fetching favicon $favicon_url failed", Debug::$LOG_VERBOSE);
return false;
}
// Crude image type matching.
// Patterns gleaned from the file(1) source code.
if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
// 0 string \000\000\001\000 MS Windows icon resource
//error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
}
elseif (preg_match('/^GIF8/', $contents)) {
// 0 string GIF8 GIF image data
//error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
}
elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
// 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
//error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
}
elseif (preg_match('/^\xff\xd8/', $contents)) {
// 0 beshort 0xffd8 JPEG image data
//error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
}
elseif (preg_match('/^BM/', $contents)) {
// 0 string BM PC bitmap (OS2, Windows BMP files)
//error_log("check_feed_favicon, favicon_url=$favicon_url isa BMP image");
}
else {
//error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
Debug::log("favicon $favicon_url type is unknown (not updating)", Debug::$LOG_VERBOSE);
return false;
}
Debug::log("setting contents of $icon_file", Debug::$LOG_VERBOSE);
$fp = @fopen($icon_file, "w");
if (!$fp) {
Debug::log("failed to open $icon_file for writing", Debug::$LOG_VERBOSE);
return false;
}
fwrite($fp, $contents);
fclose($fp);
chmod($icon_file, 0644);
clearstatcache();
return $icon_file;
}
static function is_gzipped($feed_data) {
return strpos(substr($feed_data, 0, 3),
"\x1f" . "\x8b" . "\x08", 0) === 0;
}
static function load_filters($feed_id, $owner_uid) {
$filters = array();
$feed_id = (int) $feed_id;
$cat_id = (int)Feeds::_cat_of_feed($feed_id);
if ($cat_id == 0)
$null_cat_qpart = "cat_id IS NULL OR";
else
$null_cat_qpart = "";
$pdo = Db::pdo();
$sth = $pdo->prepare("SELECT * FROM ttrss_filters2 WHERE
owner_uid = ? AND enabled = true ORDER BY order_id, title");
$sth->execute([$owner_uid]);
$check_cats = array_merge(
Feeds::_get_parent_cats($cat_id, $owner_uid),
[$cat_id]);
$check_cats_str = join(",", $check_cats);
$check_cats_fullids = array_map(function($a) { return "CAT:$a"; }, $check_cats);
while ($line = $sth->fetch()) {
$filter_id = $line["id"];
$match_any_rule = sql_bool_to_bool($line["match_any_rule"]);
$sth2 = $pdo->prepare("SELECT
r.reg_exp, r.inverse, r.feed_id, r.cat_id, r.cat_filter, r.match_on, t.name AS type_name
FROM ttrss_filters2_rules AS r,
ttrss_filter_types AS t
WHERE
(match_on IS NOT NULL OR
(($null_cat_qpart (cat_id IS NULL AND cat_filter = false) OR cat_id IN ($check_cats_str)) AND
(feed_id IS NULL OR feed_id = ?))) AND
filter_type = t.id AND filter_id = ?");
$sth2->execute([$feed_id, $filter_id]);
$rules = array();
$actions = array();
while ($rule_line = $sth2->fetch()) {
# print_r($rule_line);
if ($rule_line["match_on"]) {
$match_on = json_decode($rule_line["match_on"], true);
if (in_array("0", $match_on) || in_array($feed_id, $match_on) || count(array_intersect($check_cats_fullids, $match_on)) > 0) {
$rule = array();
$rule["reg_exp"] = $rule_line["reg_exp"];
$rule["type"] = $rule_line["type_name"];
$rule["inverse"] = sql_bool_to_bool($rule_line["inverse"]);
array_push($rules, $rule);
} else if (!$match_any_rule) {
// this filter contains a rule that doesn't match to this feed/category combination
// thus filter has to be rejected
$rules = [];
break;
}
} else {
$rule = array();
$rule["reg_exp"] = $rule_line["reg_exp"];
$rule["type"] = $rule_line["type_name"];
$rule["inverse"] = sql_bool_to_bool($rule_line["inverse"]);
array_push($rules, $rule);
}
}
if (count($rules) > 0) {
$sth2 = $pdo->prepare("SELECT a.action_param,t.name AS type_name
FROM ttrss_filters2_actions AS a,
ttrss_filter_actions AS t
WHERE
action_id = t.id AND filter_id = ?");
$sth2->execute([$filter_id]);
while ($action_line = $sth2->fetch()) {
# print_r($action_line);
$action = array();
$action["type"] = $action_line["type_name"];
$action["param"] = $action_line["action_param"];
array_push($actions, $action);
}
}
$filter = [];
$filter["id"] = $filter_id;
$filter["match_any_rule"] = sql_bool_to_bool($line["match_any_rule"]);
$filter["inverse"] = sql_bool_to_bool($line["inverse"]);
$filter["rules"] = $rules;
$filter["actions"] = $actions;
if (count($rules) > 0 && count($actions) > 0) {
array_push($filters, $filter);
}
}
return $filters;
}
/**
* Try to determine the favicon URL for a feed.
* adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
* http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
*
* @param string $url A feed or page URL
* @access public
* @return mixed The favicon URL, or false if none was found.
*/
static function get_favicon_url($url) {
$favicon_url = false;
if ($html = @UrlHelper::fetch($url)) {
$doc = new DOMDocument();
if (@$doc->loadHTML($html)) {
$xpath = new DOMXPath($doc);
$base = $xpath->query('/html/head/base[@href]');
foreach ($base as $b) {
$url = rewrite_relative_url($url, $b->getAttribute("href"));
break;
}
$entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
if (count($entries) > 0) {
foreach ($entries as $entry) {
$favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
break;
}
}
}
}
if (!$favicon_url)
$favicon_url = rewrite_relative_url($url, "/favicon.ico");
return $favicon_url;
}
// https://community.tt-rss.org/t/problem-with-img-srcset/3519
static function decode_srcset($srcset) {
$matches = [];
preg_match_all(
'/(?:\A|,)\s*(?P<url>(?!,)\S+(?<!,))\s*(?P<size>\s\d+w|\s\d+(?:\.\d+)?(?:[eE][+-]?\d+)?x|)\s*(?=,|\Z)/',
$srcset, $matches, PREG_SET_ORDER
);
foreach ($matches as $m) {
array_push($matches, [
"url" => trim($m["url"]),
"size" => trim($m["size"])
]);
}
return $matches;
}
static function encode_srcset($matches) {
$tokens = [];
foreach ($matches as $m) {
array_push($tokens, trim($m["url"]) . " " . trim($m["size"]));
}
return implode(",", $tokens);
}
static function function_enabled($func) {
return !in_array($func,
explode(',', (string)ini_get('disable_functions')));
}
}