move to psr-4 autoloader

1 files changed, 0 insertions, 2507 deletions

diff --git a/classes/feeds.php b/classes/feeds.php
deleted file mode 100755
index a97ac221f..000000000
--- a/classes/feeds.php
+++ /dev/null
@@ -1,2507 +0,0 @@
-<?php
-require_once "colors.php";
-
-class Feeds extends Handler_Protected {
-	/** special feed for archived articles */
-	const FEED_ARCHIVED = 0;
-
-	/** special feed for starred articles */
-	const FEED_STARRED = -1;
-
-	/** special feed for published articles */
-	const FEED_PUBLISHED = -2;
-
-	/** special feed for archived articles */
-	const FEED_FRESH = -3;
-
-	/** special feed for all articles */
-	const FEED_ALL = -4;
-
-	/**
-	 * a special case feed used to display auxiliary information when there's nothing to load (e.g. no stuff in fresh feed)
-	 *
-	 * TODO: Remove this and 'Feeds::_generate_dashboard_feed()'?  It only seems to be used if 'Feeds::view()' (also potentially removable)
-	 * gets passed the ID.
-	 */
-	const FEED_DASHBOARD = -5;
-
-	/** special feed for recently read articles */
-	const FEED_RECENTLY_READ = -6;
-
-	/** special feed for error scenarios (e.g. feed not found) */
-	const FEED_ERROR = -7;
-
-	/** special "category" for uncategorized articles */
-	const CATEGORY_UNCATEGORIZED = 0;
-
-	/** special category for "special" articles (e.g. Starred, Published, Archived, plugin-provided, etc.) */
-	const CATEGORY_SPECIAL = -1;
-
-	/** special category for labels */
-	const CATEGORY_LABELS = -2;
-
-	/** special category for all feeds, excluding virtual feeds (e.g. labels and such) */
-	const CATEGORY_ALL_EXCEPT_VIRTUAL = -3;
-
-	/** special category for all feeds, including virtual feeds (e.g. labels and such) */
-	const CATEGORY_ALL = -4;
-
-	const NEVER_GROUP_FEEDS = [ Feeds::FEED_RECENTLY_READ, Feeds::FEED_ARCHIVED ];
-	const NEVER_GROUP_BY_DATE = [ Feeds::FEED_PUBLISHED, Feeds::FEED_STARRED, Feeds::FEED_FRESH ];
-
-	function csrf_ignore(string $method): bool {
-		$csrf_ignored = array("index");
-
-		return array_search($method, $csrf_ignored) !== false;
-	}
-
-	/**
-	 * @param string|int $feed
-	 * @return array{0: array<int, int>, 1: int, 2: int, 3: bool, 4: array<string, mixed>} $topmost_article_ids, $headlines_count, $feed, $disable_cache, $reply
-	 */
-	private function _format_headlines_list($feed, string $method, string $view_mode, int $limit, bool $cat_view,
-					int $offset, string $override_order, bool $include_children, ?int $check_first_id = null,
-					?bool $skip_first_id_check = false, ? string $order_by = ''): array {
-
-		$disable_cache = false;
-
-		$span = Tracer::start(__METHOD__);
-		$span->setAttribute('func.args', json_encode(func_get_args()));
-
-		$reply = [];
-		$rgba_cache = [];
-		$topmost_article_ids = [];
-
-		if (!$offset) $offset = 0;
-		if ($method == "undefined") $method = "";
-
-		$method_split = explode(":", $method);
-
-		if ($method == "ForceUpdate" && $feed > 0 && is_numeric($feed)) {
-            $sth = $this->pdo->prepare("UPDATE ttrss_feeds
-                            SET last_updated = '1970-01-01', last_update_started = '1970-01-01'
-                            WHERE id = ?");
-            $sth->execute([$feed]);
-		}
-
-		if ($method_split[0] == "MarkAllReadGR")  {
-			$this->_catchup($method_split[1], false);
-		}
-
-		// FIXME: might break tag display?
-
-		if (is_numeric($feed) && $feed > 0 && !$cat_view) {
-			$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? LIMIT 1");
-			$sth->execute([$feed]);
-
-			if (!$sth->fetch()) {
-				$reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
-			}
-		}
-
-		$search = $_REQUEST["query"] ?? "";
-		$search_language = $_REQUEST["search_language"] ?? ""; // PGSQL only
-
-		if ($search) {
-			$disable_cache = true;
-		}
-
-		$qfh_ret = [];
-
-		if (!$cat_view && is_numeric($feed) && $feed < PLUGIN_FEED_BASE_INDEX && $feed > LABEL_BASE_INDEX) {
-
-			/** @var IVirtualFeed|false $handler */
-			$handler = PluginHost::getInstance()->get_feed_handler(
-				PluginHost::feed_to_pfeed_id($feed));
-
-			if ($handler) {
-				$options = array(
-					"limit" => $limit,
-					"view_mode" => $view_mode,
-					"cat_view" => $cat_view,
-					"search" => $search,
-					"override_order" => $override_order,
-					"offset" => $offset,
-					"owner_uid" => $_SESSION["uid"],
-					"filter" => false,
-					"since_id" => 0,
-					"include_children" => $include_children,
-					"order_by" => $order_by);
-
-				$qfh_ret = $handler->get_headlines(PluginHost::feed_to_pfeed_id($feed),
-					$options);
-			}
-
-		} else {
-
-			$params = array(
-				"feed" => $feed,
-				"limit" => $limit,
-				"view_mode" => $view_mode,
-				"cat_view" => $cat_view,
-				"search" => $search,
-				"search_language" => $search_language,
-				"override_order" => $override_order,
-				"offset" => $offset,
-				"include_children" => $include_children,
-				"check_first_id" => $check_first_id,
-				"skip_first_id_check" => $skip_first_id_check,
-                "order_by" => $order_by
-			);
-
-			$qfh_ret = $this->_get_headlines($params);
-		}
-
-		$vfeed_group_enabled = get_pref(Prefs::VFEED_GROUP_BY_FEED) &&
-			!(in_array($feed, self::NEVER_GROUP_FEEDS) && !$cat_view);
-
-		$result = $qfh_ret[0]; // this could be either a PDO query result or a -1 if first id changed
-		$feed_title = $qfh_ret[1];
-		$feed_site_url = $qfh_ret[2];
-		$last_error = $qfh_ret[3];
-		$last_updated = strpos($qfh_ret[4] ?? "", '1970-') === false ?
-			TimeHelper::make_local_datetime($qfh_ret[4], false) : __("Never");
-		$highlight_words = $qfh_ret[5];
-		$reply['first_id'] = $qfh_ret[6];
-		$reply['is_vfeed'] = $qfh_ret[7];
-		$query_error_override = $qfh_ret[8];
-
-		$reply['search_query'] = [$search, $search_language];
-		$reply['vfeed_group_enabled'] = $vfeed_group_enabled;
-
-		$span->addEvent('plugin_menu_items');
-
-		$plugin_menu_items = "";
-		PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_HEADLINE_TOOLBAR_SELECT_MENU_ITEM2,
-			function ($result) use (&$plugin_menu_items) {
-				$plugin_menu_items .= $result;
-			},
-			$feed, $cat_view);
-
-		$plugin_buttons = "";
-		PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_HEADLINE_TOOLBAR_BUTTON,
-			function ($result) use (&$plugin_buttons) {
-				$plugin_buttons .= $result;
-			},
-			$feed, $cat_view);
-
-		$reply['toolbar'] = [
-			'site_url' => $feed_site_url,
-			'title' => strip_tags($feed_title),
-			'error' => $last_error,
-			'last_updated' => $last_updated,
-			'plugin_menu_items' => $plugin_menu_items,
-			'plugin_buttons' => $plugin_buttons,
-		];
-
-		$reply['content'] = [];
-
-		if ($offset == 0)
-			PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_HEADLINES_BEFORE,
-					function ($result) use (&$reply) {
-						$reply['content'] .= $result;
-					},
-					$feed, $cat_view, $qfh_ret);
-
-		$span->addEvent('articles');
-
-		$headlines_count = 0;
-
-		if ($result instanceof PDOStatement) {
-			while ($line = $result->fetch(PDO::FETCH_ASSOC)) {
-				$span->addEvent('article: ' . $line['id']);
-
-				++$headlines_count;
-
-				if (!get_pref(Prefs::SHOW_CONTENT_PREVIEW)) {
-					$line["content_preview"] = "";
-				} else {
-					$line["content_preview"] =  "&mdash; " . truncate_string(strip_tags($line["content"]), 250);
-
-					$max_excerpt_length = 250;
-
-					PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_QUERY_HEADLINES,
-						function ($result) use (&$line) {
-							$line = $result;
-						},
-						$line, $max_excerpt_length);
-				}
-
-				$id = $line["id"];
-
-				// frontend doesn't expect pdo returning booleans as strings on mysql
-				if (Config::get(Config::DB_TYPE) == "mysql") {
-					foreach (["unread", "marked", "published"] as $k) {
-						if (is_integer($line[$k])) {
-							$line[$k] = $line[$k] === 1;
-						} else {
-							$line[$k] = $line[$k] === "1";
-						}
-					}
-				}
-
-				// normalize archived feed
-				if ($line['feed_id'] === null) {
-					$line['feed_id'] = Feeds::FEED_ARCHIVED;
-					$line["feed_title"] = __("Archived articles");
-				}
-
-				$feed_id = $line["feed_id"];
-
-				if ($line["num_labels"] > 0) {
-					$label_cache = $line["label_cache"];
-					$labels = false;
-
-					if ($label_cache) {
-						$label_cache = json_decode($label_cache, true);
-
-						if ($label_cache) {
-							if ($label_cache["no-labels"] ?? 0 == 1)
-								$labels = [];
-							else
-								$labels = $label_cache;
-						}
-					} else {
-						$labels = Article::_get_labels($id);
-					}
-
-					$line["labels"] = $labels;
-				} else {
-					$line["labels"] = [];
-				}
-
-				if (count($topmost_article_ids) < 3) {
-					array_push($topmost_article_ids, $id);
-				}
-
-				$line["feed_title"] = $line["feed_title"] ?? "";
-
-				$button_doc = new DOMDocument();
-
-				$line["buttons_left"] = "";
-				PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_ARTICLE_LEFT_BUTTON,
-					function ($result, $plugin) use (&$line, &$button_doc) {
-						if ($result && $button_doc->loadXML($result)) {
-
-							/** @var DOMElement|null $child */
-							$child = $button_doc->firstChild;
-
-							if ($child) {
-								do {
-									/** @var DOMElement|null $child */
-									$child->setAttribute('data-plugin-name', get_class($plugin));
-								} while ($child = $child->nextSibling);
-
-								$line["buttons_left"] .= $button_doc->saveXML($button_doc->firstChild);
-							}
-						} else if ($result) {
-							user_error(get_class($plugin) .
-								" plugin: content provided in HOOK_ARTICLE_LEFT_BUTTON is not valid XML: " .
-								Errors::libxml_last_error() . " $result", E_USER_WARNING);
-						}
-					},
-					$line);
-
-				$line["buttons"] = "";
-
-				PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_ARTICLE_BUTTON,
-					function ($result, $plugin) use (&$line, &$button_doc) {
-						if ($result && $button_doc->loadXML($result)) {
-
-							/** @var DOMElement|null $child */
-							$child = $button_doc->firstChild;
-
-							if ($child) {
-								do {
-									/** @var DOMElement|null $child */
-									$child->setAttribute('data-plugin-name', get_class($plugin));
-								} while ($child = $child->nextSibling);
-
-								$line["buttons"] .= $button_doc->saveXML($button_doc->firstChild);
-							}
-						} else if ($result) {
-							user_error(get_class($plugin) .
-								" plugin: content provided in HOOK_ARTICLE_BUTTON is not valid XML: " .
-								Errors::libxml_last_error() . " $result", E_USER_WARNING);
-						}
-					},
-					$line);
-
-				$line["content"] = Sanitizer::sanitize($line["content"],
-					$line['hide_images'], null, $line["site_url"], $highlight_words, $line["id"]);
-
-				if (!get_pref(Prefs::CDM_EXPANDED)) {
-					$line["cdm_excerpt"] = "<span class='collapse'>
-						<i class='material-icons' onclick='return Article.cdmUnsetActive(event)'
-								title=\"" . __("Collapse article") . "\">remove_circle</i></span>";
-
-					if (get_pref(Prefs::SHOW_CONTENT_PREVIEW)) {
-						$line["cdm_excerpt"] .= "<span class='excerpt'>" . $line["content_preview"] . "</span>";
-					}
-				}
-
-				if ($line["num_enclosures"] > 0) {
-					$line["enclosures"] = Article::_format_enclosures($id,
-						sql_bool_to_bool($line["always_display_enclosures"]),
-						$line["content"],
-						sql_bool_to_bool($line["hide_images"]));
-				} else {
-					$line["enclosures"] = [ 'formatted' => '', 'entries' => [] ];
-				}
-
-				$line["updated_long"] = TimeHelper::make_local_datetime($line["updated"],true);
-				$line["updated"] = TimeHelper::make_local_datetime($line["updated"], false, null, false, true);
-
-				$line['imported'] = T_sprintf("Imported at %s",
-					TimeHelper::make_local_datetime($line["date_entered"], false));
-
-				if ($line["tag_cache"])
-					$tags = explode(",", $line["tag_cache"]);
-				else
-					$tags = [];
-
-				$line["tags"] = $tags;
-
-				//$line["tags"] = Article::_get_tags($line["id"], false, $line["tag_cache"]);
-
-				$line['has_icon'] = self::_has_icon($feed_id);
-
-			    //setting feed headline background color, needs to change text color based on dark/light
-				$fav_color = $line['favicon_avg_color'] ?? false;
-
-				$span->addEvent("colors");
-
-				require_once "colors.php";
-
-				if (!isset($rgba_cache[$feed_id])) {
-					if ($fav_color && $fav_color != 'fail') {
-						$rgba_cache[$feed_id] = \Colors\_color_unpack($fav_color);
-					} else {
-						$rgba_cache[$feed_id] = \Colors\_color_unpack($this->_color_of($line['feed_title']));
-					}
-				}
-
-				if (isset($rgba_cache[$feed_id])) {
-				    $line['feed_bg_color'] = 'rgba(' . implode(",", $rgba_cache[$feed_id]) . ',0.3)';
-				}
-
-				$span->addEvent("HOOK_RENDER_ARTICLE_CDM");
-
-				PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_RENDER_ARTICLE_CDM,
-					function ($result, $plugin) use (&$line) {
-						$line = $result;
-					},
-					$line);
-
-				$line['content'] = DiskCache::rewrite_urls($line['content']);
-
-				/* we don't need those */
-
-				foreach (["date_entered", "guid", "last_published", "last_marked", "tag_cache", "favicon_avg_color",
-								"uuid", "label_cache", "yyiw", "num_enclosures"] as $k)
-					unset($line[$k]);
-
-				array_push($reply['content'], $line);
-			}
-		}
-
-		if (!$headlines_count) {
-
-			if ($result instanceof PDOStatement) {
-
-				if ($query_error_override) {
-					$message = $query_error_override;
-				} else {
-					switch ($view_mode) {
-						case "unread":
-							$message = __("No unread articles found to display.");
-							break;
-						case "updated":
-							$message = __("No updated articles found to display.");
-							break;
-						case "marked":
-							$message = __("No starred articles found to display.");
-							break;
-						default:
-							if ($feed < LABEL_BASE_INDEX) {
-								$message = __("No articles found to display. You can assign articles to labels manually from article header context menu (applies to all selected articles) or use a filter.");
-							} else {
-								$message = __("No articles found to display.");
-							}
-					}
-				}
-
-				if (!$offset && $message) {
-					$reply['content'] = "<div class='whiteBox'>$message";
-
-					$reply['content'] .= "<p><span class=\"text-muted\">";
-
-					$sth = $this->pdo->prepare("SELECT " . SUBSTRING_FOR_DATE . "(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
-                        WHERE owner_uid = ?");
-					$sth->execute([$_SESSION['uid']]);
-					$row = $sth->fetch();
-
-					$last_updated = TimeHelper::make_local_datetime($row["last_updated"], false);
-
-					$reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
-
-					$num_errors = ORM::for_table('ttrss_feeds')
-						->where_not_equal('last_error', '')
-						->where('owner_uid', $_SESSION['uid'])
-						->where_gte('update_interval', 0)
-						->count('id');
-
-					if ($num_errors > 0) {
-						$reply['content'] .= "<br/>";
-						$reply['content'] .= "<a class=\"text-muted\" href=\"#\" onclick=\"CommonDialogs.showFeedsWithErrors()\">" .
-							__('Some feeds have update errors (click for details)') . "</a>";
-					}
-					$reply['content'] .= "</span></p></div>";
-
-				}
-			} else if (is_numeric($result) && $result == -1) {
-				$reply['first_id_changed'] = true;
-			}
-		}
-
-		$span->end();
-
-		return array($topmost_article_ids, $headlines_count, $feed, $disable_cache, $reply);
-	}
-
-	function catchupAll(): void {
-		$sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
-						last_read = NOW(), unread = false WHERE unread = true AND owner_uid = ?");
-		$sth->execute([$_SESSION['uid']]);
-
-		print json_encode(array("message" => "UPDATE_COUNTERS"));
-	}
-
-	function view(): void {
-		$reply = array();
-
-		$feed = $_REQUEST["feed"];
-		$method = $_REQUEST["m"] ?? "";
-		$view_mode = $_REQUEST["view_mode"] ?? "";
-		$limit = 30;
-		$cat_view = self::_param_to_bool($_REQUEST["cat"] ?? false);
-		$next_unread_feed = $_REQUEST["nuf"] ?? 0;
-		$offset = (int) ($_REQUEST["skip"] ?? 0);
-		$order_by = $_REQUEST["order_by"] ?? "";
-		$check_first_id = $_REQUEST["fid"] ?? 0;
-
-		if (is_numeric($feed)) $feed = (int) $feed;
-
-		if ($feed == Feeds::FEED_DASHBOARD) {
-			print json_encode($this->_generate_dashboard_feed());
-			return;
-		}
-
-		$sth = false;
-		if ($feed < LABEL_BASE_INDEX) {
-
-			$label_feed = Labels::feed_to_label_id($feed);
-
-			$sth = $this->pdo->prepare("SELECT id FROM ttrss_labels2 WHERE
-							id = ? AND owner_uid = ?");
-			$sth->execute([$label_feed, $_SESSION['uid']]);
-
-		} else if (!$cat_view && is_numeric($feed) && $feed > 0) {
-
-			$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
-							id = ? AND owner_uid = ?");
-			$sth->execute([$feed, $_SESSION['uid']]);
-
-		} else if ($cat_view && is_numeric($feed) && $feed > 0) {
-
-			$sth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories WHERE
-							id = ? AND owner_uid = ?");
-
-			$sth->execute([$feed, $_SESSION['uid']]);
-		}
-
-		if ($sth && !$sth->fetch()) {
-			print json_encode($this->_generate_error_feed(__("Feed not found.")));
-			return;
-		}
-
-		set_pref(Prefs::_DEFAULT_VIEW_MODE, $view_mode);
-		set_pref(Prefs::_DEFAULT_VIEW_ORDER_BY, $order_by);
-
-		/* bump login timestamp if needed */
-		if (time() - $_SESSION["last_login_update"] > 3600) {
-			$user = ORM::for_table('ttrss_users')->find_one($_SESSION["uid"]);
-			$user->last_login = Db::NOW();
-			$user->save();
-
-			$_SESSION["last_login_update"] = time();
-		}
-
-		if (!$cat_view && is_numeric($feed) && $feed > 0) {
-			$sth = $this->pdo->prepare("UPDATE ttrss_feeds SET last_viewed = NOW()
-							WHERE id = ? AND owner_uid = ?");
-			$sth->execute([$feed, $_SESSION['uid']]);
-		}
-
-		$reply['headlines'] = [];
-
-		list($override_order, $skip_first_id_check) = self::_order_to_override_query($order_by);
-
-		$ret = $this->_format_headlines_list($feed, $method,
-			$view_mode, $limit, $cat_view, $offset,
-			$override_order, true, $check_first_id, $skip_first_id_check, $order_by);
-
-		$headlines_count = $ret[1];
-		$disable_cache = $ret[3];
-		$reply['headlines'] = $ret[4];
-
-		if (!$next_unread_feed)
-			$reply['headlines']['id'] = $feed;
-		else
-			$reply['headlines']['id'] = $next_unread_feed;
-
-		$reply['headlines']['is_cat'] = $cat_view;
-
-		$reply['headlines-info'] = ["count" => (int) $headlines_count,
-            						"disable_cache" => (bool) $disable_cache];
-
-		// this is parsed by handleRpcJson() on first viewfeed() to set cdm expanded, etc
-		$reply['runtime-info'] = RPC::_make_runtime_info();
-
-		print json_encode($reply);
-	}
-
-	/**
-	 * @return array<string, array<string, mixed>>
-	 */
-	private function _generate_dashboard_feed(): array {
-		$reply = array();
-
-		$reply['headlines']['id'] = Feeds::FEED_DASHBOARD;
-		$reply['headlines']['is_cat'] = false;
-
-		$reply['headlines']['toolbar'] = '';
-
-		$reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
-
-		$reply['headlines']['content'] .= "<p><span class=\"text-muted\">";
-
-		$sth = $this->pdo->prepare("SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
-			WHERE owner_uid = ?");
-		$sth->execute([$_SESSION['uid']]);
-		$row = $sth->fetch();
-
-		$last_updated = TimeHelper::make_local_datetime($row["last_updated"], false);
-
-		$reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
-
-		$num_errors = ORM::for_table('ttrss_feeds')
-			->where_not_equal('last_error', '')
-			->where('owner_uid', $_SESSION['uid'])
-			->where_gte('update_interval', 0)
-			->count('id');
-
-		if ($num_errors > 0) {
-			$reply['headlines']['content'] .= "<br/>";
-			$reply['headlines']['content'] .= "<a class=\"text-muted\" href=\"#\" onclick=\"CommonDialogs.showFeedsWithErrors()\">".
-				__('Some feeds have update errors (click for details)')."</a>";
-		}
-		$reply['headlines']['content'] .= "</span></p>";
-
-		$reply['headlines-info'] = array("count" => 0,
-			"unread" => 0,
-			"disable_cache" => true);
-
-		return $reply;
-	}
-
-	/**
-	 * @return array<string, mixed>
-	 */
-	private function _generate_error_feed(string $error): array {
-		$reply = array();
-
-		$reply['headlines']['id'] = Feeds::FEED_ERROR;
-		$reply['headlines']['is_cat'] = false;
-
-		$reply['headlines']['toolbar'] = '';
-		$reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
-
-		$reply['headlines-info'] = array("count" => 0,
-			"unread" => 0,
-			"disable_cache" => true);
-
-		return $reply;
-	}
-
-	function subscribeToFeed(): void {
-		print json_encode([
-			"cat_select" => \Controls\select_feeds_cats("cat")
-		]);
-	}
-
-	function search(): void {
-		print json_encode([
-			"show_language" => Config::get(Config::DB_TYPE) == "pgsql",
-			"show_syntax_help" => count(PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SEARCH)) == 0,
-			"all_languages" => Pref_Feeds::get_ts_languages(),
-			"default_language" => get_pref(Prefs::DEFAULT_SEARCH_LANGUAGE)
-		]);
-	}
-
-	function opensite(): void {
-		$feed = ORM::for_table('ttrss_feeds')
-			->find_one((int)$_REQUEST['feed_id']);
-
-		if ($feed) {
-			$site_url = UrlHelper::validate($feed->site_url);
-
-			if ($site_url) {
-				header("Location: $site_url");
-				return;
-			}
-		}
-
-		header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
-		print "Feed not found or has an empty site URL.";
-	}
-
-	function updatedebugger(): void {
-		header("Content-type: text/html");
-
-		$xdebug = isset($_REQUEST["xdebug"]) ? (int)$_REQUEST["xdebug"] : Debug::LOG_VERBOSE;
-
-		if (!in_array($xdebug, Debug::ALL_LOG_LEVELS)) {
-			$xdebug = Debug::LOG_VERBOSE;
-		}
-
-		Debug::set_enabled(true);
-		Debug::set_loglevel((int)Debug::map_loglevel($xdebug));
-
-		$feed_id = (int)$_REQUEST["feed_id"];
-		$do_update = ($_REQUEST["action"] ?? "") == "do_update";
-		$csrf_token = $_POST["csrf_token"];
-
-		$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? AND owner_uid = ?");
-		$sth->execute([$feed_id, $_SESSION['uid']]);
-
-		if (!$sth->fetch()) {
-			print "Access denied.";
-			return;
-		}
-		?>
-		<!DOCTYPE html>
-		<html>
-		<head>
-			<title>Feed Debugger</title>
-			<style type='text/css'>
-				@media (prefers-color-scheme: dark) {
-					body {
-						background : #222;
-					}
-				}
-				body.css_loading * {
-					display : none;
-				}
-
-				.feed-xml {
-					color : green;
-				}
-
-				.log-timestamp {
-					color : gray;
-				}
-
-				.log-timestamp::before {
-					content: "["
-				}
-
-				.log-timestamp::after {
-					content: "]"
-				}
-
-			</style>
-			<script>
-				dojoConfig = {
-					async: true,
-					cacheBust: "<?= get_scripts_timestamp(); ?>",
-					packages: [
-						{ name: "fox", location: "../../js" },
-					]
-				};
-			</script>
-			<?= javascript_tag("js/utility.js") ?>
-			<?= javascript_tag("js/common.js") ?>
-			<?= javascript_tag("lib/dojo/dojo.js") ?>
-			<?= javascript_tag("lib/dojo/tt-rss-layer.js") ?>
-			<?= Config::get_override_links() ?>
-		</head>
-		<body class="flat ttrss_utility feed_debugger css_loading">
-		<script type="text/javascript">
-			require(['dojo/parser', "dojo/ready", 'dijit/form/Button','dijit/form/CheckBox', 'fox/form/Select', 'dijit/form/Form',
-				'dijit/form/Select','dijit/form/TextBox','dijit/form/ValidationTextBox'],function(parser, ready){
-				ready(function() {
-					parser.parse();
-				});
-			});
-		</script>
-
-			<div class="container">
-				<h1>Feed Debugger: <?= "$feed_id: " . $this->_get_title($feed_id) ?></h1>
-				<div class="content">
-					<form method="post" action="" dojoType="dijit.form.Form">
-						<?= \Controls\hidden_tag("op", "feeds") ?>
-						<?= \Controls\hidden_tag("method", "updatedebugger") ?>
-						<?= \Controls\hidden_tag("csrf_token", $csrf_token) ?>
-						<?= \Controls\hidden_tag("action", "do_update") ?>
-						<?= \Controls\hidden_tag("feed_id", (string)$feed_id) ?>
-
-						<fieldset>
-							<label>
-							<?= \Controls\select_hash("xdebug", $xdebug,
-									[Debug::LOG_VERBOSE => "LOG_VERBOSE", Debug::LOG_EXTENDED => "LOG_EXTENDED"]);
-							?></label>
-						</fieldset>
-
-						<fieldset>
-							<label class="checkbox"><?= \Controls\checkbox_tag("force_refetch", isset($_REQUEST["force_refetch"])) ?> Force refetch</label>
-						</fieldset>
-
-						<fieldset class="narrow">
-							<label class="checkbox"><?= \Controls\checkbox_tag("force_rehash", isset($_REQUEST["force_rehash"])) ?> Force rehash</label>
-						</fieldset>
-
-						<fieldset class="narrow">
-							<label class="checkbox"><?= \Controls\checkbox_tag("dump_feed_xml", isset($_REQUEST["dump_feed_xml"])) ?> Dump feed XML</label>
-						</fieldset>
-
-						<?= \Controls\submit_tag("Continue") ?>
-					</form>
-
-					<hr>
-
-					<pre><?php
-
-					if ($do_update) {
-						RSSUtils::update_rss_feed($feed_id, true, true);
-					}
-
-					?></pre>
-				</div>
-			</div>
-		</body>
-		</html>
-		<?php
-
-	}
-
-	/**
-	 * @param array<int, string> $search
-	 */
-	static function _catchup(string $feed_id_or_tag_name, bool $cat_view, ?int $owner_uid = null, string $mode = 'all', ?array $search = null): void {
-
-		if (!$owner_uid) $owner_uid = $_SESSION['uid'];
-
-		$pdo = Db::pdo();
-
-		if (is_array($search) && $search[0]) {
-			$search_qpart = "";
-
-			PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_SEARCH,
-				function ($result) use (&$search_qpart, &$search_words) {
-					if (!empty($result)) {
-						list($search_qpart, $search_words) = $result;
-						return true;
-					}
-				},
-				$search[0]);
-
-			// fall back in case of no plugins
-			if (empty($search_qpart)) {
-				list($search_qpart, $search_words) = self::_search_to_sql($search[0], $search[1], $owner_uid);
-			}
-		} else {
-			$search_qpart = "true";
-		}
-
-		// TODO: all this interval stuff needs some generic generator function
-
-		switch ($mode) {
-			case "1day":
-				if (Config::get(Config::DB_TYPE) == "pgsql") {
-					$date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
-				} else {
-					$date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
-				}
-				break;
-			case "1week":
-				if (Config::get(Config::DB_TYPE) == "pgsql") {
-					$date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
-				} else {
-					$date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
-				}
-				break;
-			case "2week":
-				if (Config::get(Config::DB_TYPE) == "pgsql") {
-					$date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
-				} else {
-					$date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
-				}
-				break;
-			default:
-				$date_qpart = "true";
-		}
-
-		if (is_numeric($feed_id_or_tag_name)) {
-			$feed_id = (int) $feed_id_or_tag_name;
-
-			if ($cat_view) {
-
-				if ($feed_id >= 0) {
-
-					if ($feed_id == Feeds::CATEGORY_UNCATEGORIZED) {
-						$cat_qpart = "cat_id IS NULL";
-					} else {
-						$children = self::_get_child_cats($feed_id, $owner_uid);
-						array_push($children, $feed_id);
-						$children = array_map("intval", $children);
-
-						$children = join(",", $children);
-
-						$cat_qpart = "cat_id IN ($children)";
-					}
-
-					$sth = $pdo->prepare("UPDATE ttrss_user_entries
-						SET unread = false, last_read = NOW() WHERE ref_id IN
-							(SELECT id FROM
-								(SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
-									AND owner_uid = ? AND unread = true AND feed_id IN
-										(SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart AND $search_qpart) as tmp)");
-					$sth->execute([$owner_uid]);
-
-				} else if ($feed_id == Feeds::CATEGORY_LABELS) {
-
-					$sth = $pdo->prepare("UPDATE ttrss_user_entries
-						SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
-							FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart AND $search_qpart) > 0
-							AND unread = true AND owner_uid = ?");
-					$sth->execute([$owner_uid]);
-				}
-
-			} else if ($feed_id > 0) {
-
-				$sth = $pdo->prepare("UPDATE ttrss_user_entries
-					SET unread = false, last_read = NOW() WHERE ref_id IN
-						(SELECT id FROM
-							(SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
-								AND owner_uid = ? AND unread = true AND feed_id = ? AND $date_qpart AND $search_qpart) as tmp)");
-				$sth->execute([$owner_uid, $feed_id]);
-
-			} else if ($feed_id < 0 && $feed_id > LABEL_BASE_INDEX) { // special, like starred
-
-				if ($feed_id == Feeds::FEED_STARRED) {
-					$sth = $pdo->prepare("UPDATE ttrss_user_entries
-						SET unread = false, last_read = NOW() WHERE ref_id IN
-							(SELECT id FROM
-								(SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
-									AND owner_uid = ? AND unread = true AND marked = true AND $date_qpart AND $search_qpart) as tmp)");
-					$sth->execute([$owner_uid]);
-				}
-
-				if ($feed_id == Feeds::FEED_PUBLISHED) {
-					$sth = $pdo->prepare("UPDATE ttrss_user_entries
-						SET unread = false, last_read = NOW() WHERE ref_id IN
-							(SELECT id FROM
-								(SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
-									AND owner_uid = ? AND unread = true AND published = true AND $date_qpart AND $search_qpart) as tmp)");
-					$sth->execute([$owner_uid]);
-				}
-
-				if ($feed_id == Feeds::FEED_FRESH) {
-
-					$intl = (int) get_pref(Prefs::FRESH_ARTICLE_MAX_AGE);
-
-					if (Config::get(Config::DB_TYPE) == "pgsql") {
-						$match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
-					} else {
-						$match_part = "date_entered > DATE_SUB(NOW(),
-							INTERVAL $intl HOUR) ";
-					}
-
-					$sth = $pdo->prepare("UPDATE ttrss_user_entries
-						SET unread = false, last_read = NOW() WHERE ref_id IN
-							(SELECT id FROM
-								(SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
-									AND owner_uid = ? AND score >= 0 AND unread = true AND $date_qpart AND $match_part AND $search_qpart) as tmp)");
-					$sth->execute([$owner_uid]);
-				}
-
-				if ($feed_id == Feeds::FEED_ALL) {
-					$sth = $pdo->prepare("UPDATE ttrss_user_entries
-						SET unread = false, last_read = NOW() WHERE ref_id IN
-							(SELECT id FROM
-								(SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
-									AND owner_uid = ? AND unread = true AND $date_qpart AND $search_qpart) as tmp)");
-					$sth->execute([$owner_uid]);
-				}
-			} else if ($feed_id < LABEL_BASE_INDEX) { // label
-
-				$label_id = Labels::feed_to_label_id($feed_id);
-
-				$sth = $pdo->prepare("UPDATE ttrss_user_entries
-					SET unread = false, last_read = NOW() WHERE ref_id IN
-						(SELECT id FROM
-							(SELECT DISTINCT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
-								AND label_id = ? AND ref_id = article_id
-								AND owner_uid = ? AND unread = true AND $date_qpart AND $search_qpart) as tmp)");
-				$sth->execute([$label_id, $owner_uid]);
-			}
-		} else { // tag
-			$tag_name = $feed_id_or_tag_name;
-
-			$sth = $pdo->prepare("UPDATE ttrss_user_entries
-				SET unread = false, last_read = NOW() WHERE ref_id IN
-					(SELECT id FROM
-						(SELECT DISTINCT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
-							AND post_int_id = int_id AND tag_name = ?
-							AND ttrss_user_entries.owner_uid = ? AND unread = true AND $date_qpart AND $search_qpart) as tmp)");
-			$sth->execute([$tag_name, $owner_uid]);
-		}
-	}
-
-	/**
-	 * @param int|string $feed feed id or tag name
-	 * @param bool $is_cat
-	 * @param bool $unread_only
-	 * @param null|int $owner_uid
-	 * @return int
-	 * @throws PDOException
-	 */
-	static function _get_counters($feed, bool $is_cat = false, bool $unread_only = false, ?int $owner_uid = null): int {
-		$span = OpenTelemetry\API\Trace\Span::getCurrent();
-
-		$span->addEvent(__METHOD__ . ": $feed ($is_cat)");
-
-		$n_feed = (int) $feed;
-		$need_entries = false;
-
-		$pdo = Db::pdo();
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		if ($unread_only) {
-			$unread_qpart = "unread = true";
-		} else {
-			$unread_qpart = "true";
-		}
-
-		$match_part = "";
-
-		if ($is_cat) {
-			return self::_get_cat_unread($n_feed, $owner_uid);
-		} else if(is_numeric($feed) && $feed < PLUGIN_FEED_BASE_INDEX && $feed > LABEL_BASE_INDEX) { // virtual Feed
-			$feed_id = PluginHost::feed_to_pfeed_id($feed);
-			$handler = PluginHost::getInstance()->get_feed_handler($feed_id);
-			if (implements_interface($handler, 'IVirtualFeed')) {
-				/** @var IVirtualFeed $handler */
-				//$span->end();
-				return $handler->get_unread($feed_id);
-			} else {
-				//$span->end();
-				return 0;
-			}
-		} else if ($n_feed == Feeds::FEED_RECENTLY_READ) {
-			//$span->end();
-			return 0;
-		// tags
-		} else if ($feed != "0" && $n_feed == 0) {
-
-			$sth = $pdo->prepare("SELECT SUM((SELECT COUNT(int_id)
-				FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
-					AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
-				WHERE owner_uid = ? AND tag_name = ?");
-
-			$sth->execute([$owner_uid, $feed]);
-			$row = $sth->fetch();
-
-			// Handle 'SUM()' returning null if there are no results
-			//$span->end();
-			return $row["count"] ?? 0;
-
-		} else if ($n_feed == Feeds::FEED_STARRED) {
-			$match_part = "marked = true";
-		} else if ($n_feed == Feeds::FEED_PUBLISHED) {
-			$match_part = "published = true";
-		} else if ($n_feed == Feeds::FEED_FRESH) {
-			$match_part = "unread = true AND score >= 0";
-
-			$intl = (int) get_pref(Prefs::FRESH_ARTICLE_MAX_AGE, $owner_uid);
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-				$match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
-			} else {
-				$match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
-			}
-
-			$need_entries = true;
-
-		} else if ($n_feed == Feeds::FEED_ALL) {
-			$match_part = "true";
-		} else if ($n_feed >= 0) {
-
-			if ($n_feed != Feeds::FEED_ARCHIVED) {
-				$match_part = sprintf("feed_id = %d", $n_feed);
-			} else {
-				$match_part = "feed_id IS NULL";
-			}
-
-		} else if ($feed < LABEL_BASE_INDEX) {
-
-			$label_id = Labels::feed_to_label_id($feed);
-
-			//$span->end();
-			return self::_get_label_unread($label_id, $owner_uid);
-		}
-
-		if ($match_part) {
-
-			if ($need_entries) {
-				$from_qpart = "ttrss_user_entries,ttrss_entries";
-				$from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
-			} else {
-				$from_qpart = "ttrss_user_entries";
-				$from_where = "";
-			}
-
-			$sth = $pdo->prepare("SELECT count(int_id) AS unread
-				FROM $from_qpart WHERE
-				$unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = ?");
-			$sth->execute([$owner_uid]);
-			$row = $sth->fetch();
-
-			//$span->end();
-			return $row["unread"];
-
-		} else {
-
-			$sth = $pdo->prepare("SELECT COUNT(post_int_id) AS unread
-				FROM ttrss_tags,ttrss_user_entries,ttrss_entries
-				WHERE tag_name = ? AND post_int_id = int_id AND ref_id = ttrss_entries.id
-				AND $unread_qpart AND ttrss_tags.owner_uid = ,");
-
-			$sth->execute([$feed, $owner_uid]);
-			$row = $sth->fetch();
-
-			//$span->end();
-			return $row["unread"];
-		}
-	}
-
-	function add(): void {
-		$feed = clean($_REQUEST['feed']);
-		$cat = (int) clean($_REQUEST['cat'] ?? '');
-		$need_auth = isset($_REQUEST['need_auth']);
-		$login = $need_auth ? clean($_REQUEST['login']) : '';
-		$pass = $need_auth ? clean($_REQUEST['pass']) : '';
-
-		$rc = Feeds::_subscribe($feed, $cat, $login, $pass);
-
-		print json_encode(array("result" => $rc));
-	}
-
-	/**
-	 * @return array<string, mixed> (code => Status code, message => error message if available)
-	 *
-	 *                 0 - OK, Feed already exists
-	 *                 1 - OK, Feed added
-	 *                 2 - Invalid URL
-	 *                 3 - URL content is HTML, no feeds available
-	 *                 4 - URL content is HTML which contains multiple feeds.
-	 *                     Here you should call extractfeedurls in rpc-backend
-	 *                     to get all possible feeds.
-	 *                 5 - Couldn't download the URL content.
-	 *                 6 - Content is an invalid XML.
-	 *                 7 - Error while creating feed database entry.
-	 *                 8 - Permission denied (ACCESS_LEVEL_READONLY).
-	 */
-	static function _subscribe(string $url, int $cat_id = 0, string $auth_login = '', string $auth_pass = ''): array {
-
-		$user = ORM::for_table("ttrss_users")->find_one($_SESSION['uid']);
-
-		if ($user && $user->access_level == UserHelper::ACCESS_LEVEL_READONLY) {
-			return ["code" => 8];
-		}
-
-		$pdo = Db::pdo();
-
-		$url = UrlHelper::validate($url);
-
-		if (!$url) return ["code" => 2];
-
-		PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_PRE_SUBSCRIBE,
-			/** @phpstan-ignore-next-line */
-			function ($result) use (&$url, &$auth_login, &$auth_pass) {
-				// arguments are updated inside the hook (if needed)
-			},
-			$url, $auth_login, $auth_pass);
-
-		$contents = UrlHelper::fetch($url, false, $auth_login, $auth_pass);
-
-		PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_SUBSCRIBE_FEED,
-			function ($result) use (&$contents) {
-				$contents = $result;
-			},
-			$contents, $url, $auth_login, $auth_pass);
-
-		if (empty($contents)) {
-			if (preg_match("/cloudflare\.com/", UrlHelper::$fetch_last_error_content)) {
-				UrlHelper::$fetch_last_error .= " (feed behind Cloudflare)";
-			}
-
-			return array("code" => 5, "message" => UrlHelper::$fetch_last_error);
-		}
-
-		if (mb_strpos(UrlHelper::$fetch_last_content_type, "html") !== false && self::_is_html($contents)) {
-			$feedUrls = self::_get_feeds_from_html($url, $contents);
-
-			if (count($feedUrls) == 0) {
-				return array("code" => 3);
-			} else if (count($feedUrls) > 1) {
-				return array("code" => 4, "feeds" => $feedUrls);
-			}
-			//use feed url as new URL
-			$url = key($feedUrls);
-		}
-
-		$feed = ORM::for_table('ttrss_feeds')
-			->where('feed_url', $url)
-			->where('owner_uid', $_SESSION['uid'])
-			->find_one();
-
-		if ($feed) {
-			return ["code" => 0, "feed_id" => $feed->id];
-		} else {
-			$feed = ORM::for_table('ttrss_feeds')->create();
-
-			$feed->set([
-				'owner_uid' => $_SESSION['uid'],
-				'feed_url' => $url,
-				'title' => "[Unknown]",
-				'cat_id' => $cat_id ? $cat_id : null,
-				'auth_login' => (string)$auth_login,
-				'auth_pass' => (string)$auth_pass,
-				'update_method' => 0,
-				'auth_pass_encrypted' => false,
-			]);
-
-			if ($feed->save()) {
-				RSSUtils::update_basic_info($feed->id);
-				return ["code" => 1, "feed_id" => (int) $feed->id];
-			}
-
-			return ["code" => 7];
-		}
-	}
-
-	static function _get_icon_file(int $feed_id): string {
-		$favicon_cache = DiskCache::instance('feed-icons');
-
-		return $favicon_cache->get_full_path((string)$feed_id);
-	}
-
-	static function _get_icon_url(int $feed_id, string $fallback_url = "") : string {
-		if (self::_has_icon($feed_id)) {
-			$icon_url = Config::get_self_url() . "/public.php?" . http_build_query([
-				'op' => 'feed_icon',
-				'id' => $feed_id,
-			]);
-
-			return $icon_url;
-		}
-
-		return $fallback_url;
-	}
-
-	static function _has_icon(int $feed_id): bool {
-		$favicon_cache = DiskCache::instance('feed-icons');
-
-		return $favicon_cache->exists((string)$feed_id);
-	}
-
-	/**
-	 * @return false|string false if the icon ID was unrecognized, otherwise, the icon identifier string
-	 */
-	static function _get_icon(int $id) {
-		switch ($id) {
-			case Feeds::FEED_ARCHIVED:
-				return "archive";
-			case Feeds::FEED_STARRED:
-				return "star";
-			case Feeds::FEED_PUBLISHED:
-				return "rss_feed";
-			case Feeds::FEED_FRESH:
-				return "whatshot";
-			case Feeds::FEED_ALL:
-				return "inbox";
-			case Feeds::FEED_RECENTLY_READ:
-				return "restore";
-			default:
-				if ($id < LABEL_BASE_INDEX) {
-					return "label";
-				} else {
-					return self::_get_icon_url($id);
-				}
-		}
-	}
-
-	/**
-	 * @return false|int false if the feed couldn't be found by URL+owner, otherwise the feed ID
-	 */
-	static function _find_by_url(string $feed_url, int $owner_uid) {
-		$feed = ORM::for_table('ttrss_feeds')
-			->where('owner_uid', $owner_uid)
-			->where('feed_url', $feed_url)
-			->find_one();
-
-		if ($feed) {
-			return $feed->id;
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * $owner_uid defaults to $_SESSION['uid']
-	 *
-	 * @return false|int false if the category/feed couldn't be found by title, otherwise its ID
-	 */
-	static function _find_by_title(string $title, bool $cat = false, int $owner_uid = 0) {
-
-		$res = false;
-
-		if ($cat) {
-			$res = ORM::for_table('ttrss_feed_categories')
-				->where('owner_uid', $owner_uid ? $owner_uid : $_SESSION['uid'])
-				->where('title', $title)
-				->find_one();
-		} else {
-			$res = ORM::for_table('ttrss_feeds')
-				->where('owner_uid', $owner_uid ? $owner_uid : $_SESSION['uid'])
-				->where('title', $title)
-				->find_one();
-		}
-
-		if ($res) {
-			return $res->id;
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string|int $id
-	 */
-	static function _get_title($id, bool $cat = false): string {
-		$pdo = Db::pdo();
-
-		if ($cat) {
-			return self::_get_cat_title($id);
-		} else if ($id == Feeds::FEED_STARRED) {
-			return __("Starred articles");
-		} else if ($id == Feeds::FEED_PUBLISHED) {
-			return __("Published articles");
-		} else if ($id == Feeds::FEED_FRESH) {
-			return __("Fresh articles");
-		} else if ($id == Feeds::FEED_ALL) {
-			return __("All articles");
-		} else if ($id === Feeds::FEED_ARCHIVED) {
-			return __("Archived articles");
-		} else if ($id == Feeds::FEED_RECENTLY_READ) {
-			return __("Recently read");
-		} else if ($id < LABEL_BASE_INDEX) {
-
-			$label_id = Labels::feed_to_label_id($id);
-
-			$sth = $pdo->prepare("SELECT caption FROM ttrss_labels2 WHERE id = ?");
-			$sth->execute([$label_id]);
-
-			if ($row = $sth->fetch()) {
-				return $row["caption"];
-			} else {
-				return "Unknown label ($label_id)";
-			}
-
-		} else if (is_numeric($id) && $id > 0) {
-
-		    $sth = $pdo->prepare("SELECT title FROM ttrss_feeds WHERE id = ?");
-		    $sth->execute([$id]);
-
-		    if ($row = $sth->fetch()) {
-				return $row["title"];
-			} else {
-				return "Unknown feed ($id)";
-			}
-
-		} else {
-			return "$id";
-		}
-	}
-
-	// only real cats
-	static function _get_cat_marked(int $cat, int $owner_uid = 0): int {
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$pdo = Db::pdo();
-
-		if ($cat >= 0) {
-
-			$sth = $pdo->prepare("SELECT SUM(CASE WHEN marked THEN 1 ELSE 0 END) AS marked
-				FROM ttrss_user_entries
-				WHERE feed_id IN (SELECT id FROM ttrss_feeds
-                    WHERE (cat_id = :cat OR (:cat IS NULL AND cat_id IS NULL))
-					AND owner_uid = :uid)
-				AND owner_uid = :uid");
-
-			$sth->execute(["cat" => $cat ? $cat : null, "uid" => $owner_uid]);
-
-			if ($row = $sth->fetch()) {
-				return (int) $row["marked"];
-			}
-		}
-		return 0;
-	}
-
-	static function _get_cat_unread(int $cat, int $owner_uid = 0): int {
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$pdo = Db::pdo();
-
-		if ($cat >= 0) {
-
-			$sth = $pdo->prepare("SELECT SUM(CASE WHEN unread THEN 1 ELSE 0 END) AS unread
-				FROM ttrss_user_entries
-				WHERE feed_id IN (SELECT id FROM ttrss_feeds
-					WHERE (cat_id = :cat OR (:cat IS NULL AND cat_id IS NULL))
-					AND owner_uid = :uid)
-				AND owner_uid = :uid");
-
-			$sth->execute(["cat" => $cat ? $cat : null, "uid" => $owner_uid]);
-
-			if ($row = $sth->fetch()) {
-				return (int) $row["unread"];
-			}
-		} else if ($cat == Feeds::CATEGORY_SPECIAL) {
-			return 0;
-		} else if ($cat == Feeds::CATEGORY_LABELS) {
-
-			$sth = $pdo->prepare("SELECT COUNT(DISTINCT article_id) AS unread
-				FROM ttrss_user_entries ue, ttrss_user_labels2 l
-				WHERE article_id = ref_id AND unread IS true AND ue.owner_uid = :uid");
-
-			$sth->execute(["uid" => $owner_uid]);
-
-			if ($row = $sth->fetch()) {
-				return (int) $row["unread"];
-			}
-		}
-
-		return 0;
-	}
-
-	// only accepts real cats (>= 0)
-	static function _get_cat_children_unread(int $cat, int $owner_uid = 0): int {
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$pdo = Db::pdo();
-
-		$sth = $pdo->prepare("SELECT id FROM ttrss_feed_categories WHERE parent_cat = ?
-				AND owner_uid = ?");
-		$sth->execute([$cat, $owner_uid]);
-
-		$unread = 0;
-
-		while ($line = $sth->fetch()) {
-			$unread += self::_get_cat_unread($line["id"], $owner_uid);
-			$unread += self::_get_cat_children_unread($line["id"], $owner_uid);
-		}
-
-		return $unread;
-	}
-
-	static function _get_global_unread(int $user_id = 0): int {
-
-		if (!$user_id) $user_id = $_SESSION["uid"];
-
-		$pdo = Db::pdo();
-
-		$sth = $pdo->prepare("SELECT SUM(CASE WHEN unread THEN 1 ELSE 0 END) AS count
-			FROM ttrss_user_entries ue
-			WHERE ue.owner_uid = ?");
-
-		$sth->execute([$user_id]);
-		$row = $sth->fetch();
-
-		// Handle 'SUM()' returning null if there are no articles/results (e.g. admin user with no feeds)
-		return $row["count"] ?? 0;
-	}
-
-	static function _get_cat_title(int $cat_id): string {
-		switch ($cat_id) {
-			case Feeds::CATEGORY_UNCATEGORIZED:
-				return __("Uncategorized");
-			case Feeds::CATEGORY_SPECIAL:
-				return __("Special");
-			case Feeds::CATEGORY_LABELS:
-				return __("Labels");
-			default:
-				$cat = ORM::for_table('ttrss_feed_categories')
-					->find_one($cat_id);
-
-				if ($cat) {
-					return $cat->title;
-				} else {
-					return "UNKNOWN";
-				}
-		}
-	}
-
-	private static function _get_label_unread(int $label_id, ?int $owner_uid = null): int {
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$pdo = Db::pdo();
-
-		$sth = $pdo->prepare("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
-			WHERE owner_uid = ? AND unread = true AND label_id = ? AND article_id = ref_id");
-
-		$sth->execute([$owner_uid, $label_id]);
-
-		if ($row = $sth->fetch()) {
-			return $row["unread"];
-		} else {
-			return 0;
-		}
-	}
-
-	/**
-	 * @param array<string, mixed> $params
-	 * @return array<int, mixed> $result, $feed_title, $feed_site_url, $last_error, $last_updated, $highlight_words, $first_id, $is_vfeed, $query_error_override
-	 */
-	static function _get_headlines($params): array {
-
-		$span = Tracer::start(__METHOD__);
-		$span->setAttribute('func.args', json_encode(func_get_args()));
-
-		$pdo = Db::pdo();
-
-		// WARNING: due to highly dynamic nature of this query its going to quote parameters
-		// right before adding them to SQL part
-
-		$feed = $params["feed"];
-		$limit = isset($params["limit"]) ? $params["limit"] : 30;
-		$view_mode = $params["view_mode"];
-		$cat_view = isset($params["cat_view"]) ? $params["cat_view"] : false;
-		$search = isset($params["search"]) ? $params["search"] : false;
-		$search_language = isset($params["search_language"]) ? $params["search_language"] : "";
-		$override_order = isset($params["override_order"]) ? $params["override_order"] : false;
-		$offset = isset($params["offset"]) ? $params["offset"] : 0;
-		$owner_uid = isset($params["owner_uid"]) ? $params["owner_uid"] : $_SESSION["uid"];
-		$since_id = isset($params["since_id"]) ? $params["since_id"] : 0;
-		$include_children = isset($params["include_children"]) ? $params["include_children"] : false;
-		$ignore_vfeed_group = isset($params["ignore_vfeed_group"]) ? $params["ignore_vfeed_group"] : false;
-		$override_strategy = isset($params["override_strategy"]) ? $params["override_strategy"] : false;
-		$override_vfeed = isset($params["override_vfeed"]) ? $params["override_vfeed"] : false;
-		$start_ts = isset($params["start_ts"]) ? $params["start_ts"] : false;
-		$check_first_id = isset($params["check_first_id"]) ? $params["check_first_id"] : false;
-		$skip_first_id_check = isset($params["skip_first_id_check"]) ? $params["skip_first_id_check"] : false;
-		//$order_by = isset($params["order_by"]) ? $params["order_by"] : false;
-
-		$ext_tables_part = "";
-		$limit_query_part = "";
-		$query_error_override = "";
-
-		$search_words = [];
-
-		if ($search) {
-			$search_query_part = "";
-
-			PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_SEARCH,
-				function ($result) use (&$search_query_part, &$search_words) {
-					if (!empty($result)) {
-						list($search_query_part, $search_words) = $result;
-						return true;
-					}
-				},
-				$search);
-
-			// fall back in case of no plugins
-			if (!$search_query_part) {
-				list($search_query_part, $search_words) = self::_search_to_sql($search, $search_language, $owner_uid);
-			}
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-				$test_sth = $pdo->prepare("select $search_query_part
-					FROM ttrss_entries, ttrss_user_entries WHERE id = ref_id limit 1");
-
-				try {
-					$test_sth->execute();
-				} catch (PDOException $e) {
-					// looks like tsquery syntax is invalid
-					$search_query_part = "false";
-
-					$query_error_override = T_sprintf("Incorrect search syntax: %s.", implode(" ", $search_words));
-				}
-			}
-
-			$search_query_part .= " AND ";
-		} else {
-			$search_query_part = "";
-		}
-
-		if ($since_id) {
-			$since_id_part = "ttrss_entries.id > ".$pdo->quote($since_id)." AND ";
-		} else {
-			$since_id_part = "";
-		}
-
-		$view_query_part = "";
-
-		if ($view_mode == "adaptive") {
-			if ($search) {
-				$view_query_part = " ";
-			} else if ($feed != -1) {
-				// not Feeds::FEED_STARRED or Feeds::CATEGORY_SPECIAL
-
-				$unread = Feeds::_get_counters($feed, $cat_view, true);
-
-				if ($cat_view && $feed > 0 && $include_children)
-					$unread += self::_get_cat_children_unread($feed);
-
-				if ($unread > 0) {
-					$view_query_part = " unread = true AND ";
-				}
-			}
-		}
-
-		if ($view_mode == "marked") {
-			$view_query_part = " marked = true AND ";
-		}
-
-		if ($view_mode == "has_note") {
-			$view_query_part = " (note IS NOT NULL AND note != '') AND ";
-		}
-
-		if ($view_mode == "published") {
-			$view_query_part = " published = true AND ";
-		}
-
-		if ($view_mode == "unread" && $feed != Feeds::FEED_RECENTLY_READ) {
-			$view_query_part = " unread = true AND ";
-		}
-
-		if ($limit > 0) {
-			$limit_query_part = "LIMIT " . (int)$limit;
-		}
-
-		$allow_archived = false;
-
-		$vfeed_query_part = "";
-
-		/* tags */
-		if (!is_numeric($feed)) {
-			$query_strategy_part = "true";
-			$vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
-					id = feed_id) as feed_title,";
-		} else if ($feed > 0) {
-
-			if ($cat_view) {
-
-				if ($feed > 0) {
-					if ($include_children) {
-						# sub-cats
-						$subcats = self::_get_child_cats($feed, $owner_uid);
-						array_push($subcats, $feed);
-						$subcats = array_map("intval", $subcats);
-
-						$query_strategy_part = "cat_id IN (".
-							implode(",", $subcats).")";
-
-					} else {
-						$query_strategy_part = "cat_id = " . $pdo->quote((string)$feed);
-					}
-
-				} else {
-					$query_strategy_part = "cat_id IS NULL";
-				}
-
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-
-			} else {
-				$query_strategy_part = "feed_id = " . $pdo->quote((string)$feed);
-			}
-		} else if ($feed == Feeds::FEED_ARCHIVED && !$cat_view) { // archive virtual feed
-			$query_strategy_part = "feed_id IS NULL";
-			$allow_archived = true;
-		} else if ($feed == Feeds::CATEGORY_UNCATEGORIZED && $cat_view) { // uncategorized
-			$query_strategy_part = "cat_id IS NULL AND feed_id IS NOT NULL";
-			$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-		} else if ($feed == -1) { // starred virtual feed, Feeds::FEED_STARRED or Feeds::CATEGORY_SPECIAL
-			$query_strategy_part = "marked = true";
-			$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-			$allow_archived = true;
-
-			if (!$override_order) {
-				$override_order = "last_marked DESC, date_entered DESC, updated DESC";
-			}
-
-		} else if ($feed == -2) { // published virtual feed (Feeds::FEED_PUBLISHED) OR labels category (Feeds::CATEGORY_LABELS)
-
-			if (!$cat_view) {
-				$query_strategy_part = "published = true";
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-				$allow_archived = true;
-
-				if (!$override_order) {
-					$override_order = "last_published DESC, date_entered DESC, updated DESC";
-				}
-
-			} else {
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-
-				$ext_tables_part = "ttrss_labels2,ttrss_user_labels2,";
-
-				$query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
-						ttrss_user_labels2.article_id = ref_id";
-
-			}
-		} else if ($feed == Feeds::FEED_RECENTLY_READ) { // recently read
-			$query_strategy_part = "unread = false AND last_read IS NOT NULL";
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-				$query_strategy_part .= " AND last_read > NOW() - INTERVAL '1 DAY' ";
-			} else {
-				$query_strategy_part .= " AND last_read > DATE_SUB(NOW(), INTERVAL 1 DAY) ";
-			}
-
-			$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-			$allow_archived = true;
-			$ignore_vfeed_group = true;
-
-			if (!$override_order) $override_order = "last_read DESC";
-
-		} else if ($feed == Feeds::FEED_FRESH) { // fresh virtual feed
-			$query_strategy_part = "unread = true AND score >= 0";
-
-			$intl = (int) get_pref(Prefs::FRESH_ARTICLE_MAX_AGE, $owner_uid);
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-				$query_strategy_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
-			} else {
-				$query_strategy_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
-			}
-
-			$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-		} else if ($feed == Feeds::FEED_ALL) { // all articles virtual feed
-			$allow_archived = true;
-			$query_strategy_part = "true";
-			$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-		} else if ($feed <= LABEL_BASE_INDEX) { // labels
-			$label_id = Labels::feed_to_label_id($feed);
-
-			$query_strategy_part = "label_id = $label_id AND
-					ttrss_labels2.id = ttrss_user_labels2.label_id AND
-					ttrss_user_labels2.article_id = ref_id";
-
-			$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-			$ext_tables_part = "ttrss_labels2,ttrss_user_labels2,";
-			$allow_archived = true;
-
-		} else {
-			$query_strategy_part = "true";
-		}
-
-		$order_by = "score DESC, date_entered DESC, updated DESC";
-
-		if ($override_order) {
-			$order_by = $override_order;
-		}
-
-		if ($override_strategy) {
-			$query_strategy_part = $override_strategy;
-		}
-
-		if ($override_vfeed) {
-			$vfeed_query_part = $override_vfeed;
-		}
-
-		$feed_title = "";
-		$feed_site_url = "";
-		$last_error = "";
-		$last_updated = "";
-
-		if ($search) {
-			$feed_title = T_sprintf("Search results: %s", $search);
-		} else {
-			if ($cat_view) {
-				$feed_title = self::_get_cat_title($feed);
-			} else {
-				if (is_numeric($feed) && $feed > 0) {
-					$ssth = $pdo->prepare("SELECT title,site_url,last_error,last_updated
-							FROM ttrss_feeds WHERE id = ? AND owner_uid = ?");
-					$ssth->execute([$feed, $owner_uid]);
-                    $row = $ssth->fetch();
-
-					$feed_title = $row["title"];
-					$feed_site_url = $row["site_url"];
-					$last_error = $row["last_error"];
-					$last_updated = $row["last_updated"];
-				} else {
-					$feed_title = self::_get_title($feed);
-				}
-			}
-		}
-
-		$content_query_part = "content, ";
-
-		if ($limit_query_part) {
-			$offset_query_part = "OFFSET " . (int)$offset;
-		} else {
-			$offset_query_part = "";
-		}
-
-		if ($start_ts) {
-			$start_ts_formatted = date("Y/m/d H:i:s", strtotime($start_ts));
-			$start_ts_query_part = "date_entered >= '$start_ts_formatted' AND";
-		} else {
-			$start_ts_query_part = "";
-		}
-
-		$first_id = 0;
-
-		if (Config::get(Config::DB_TYPE) == "pgsql") {
-			$yyiw_qpart = "to_char(date_entered, 'IYYY-IW') AS yyiw";
-		} else {
-			$yyiw_qpart = "date_format(date_entered, '%Y-%u') AS yyiw";
-		}
-
-		if (is_numeric($feed)) {
-			// proper override_order applied above
-			if ($vfeed_query_part && !$ignore_vfeed_group && get_pref(Prefs::VFEED_GROUP_BY_FEED, $owner_uid)) {
-
-				if (!(in_array($feed, self::NEVER_GROUP_BY_DATE) && !$cat_view)) {
-					$yyiw_desc = $order_by == "date_reverse" ? "" : "desc";
-					$yyiw_order_qpart = "yyiw $yyiw_desc, ";
-				} else {
-					$yyiw_order_qpart = "";
-				}
-
-				if (!$override_order) {
-					$order_by = "$yyiw_order_qpart ttrss_feeds.title, $order_by";
-				} else {
-					$order_by = "$yyiw_order_qpart ttrss_feeds.title, $override_order";
-				}
-			}
-
-			if (!$allow_archived) {
-				$from_qpart = "{$ext_tables_part}ttrss_entries LEFT JOIN ttrss_user_entries ON (ref_id = ttrss_entries.id), ttrss_feeds";
-				$feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
-
-			} else {
-				$from_qpart = "{$ext_tables_part}ttrss_entries LEFT JOIN ttrss_user_entries ON (ref_id = ttrss_entries.id)
-						LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
-				$feed_check_qpart = "";
-			}
-
-			if ($vfeed_query_part) $vfeed_query_part .= "favicon_avg_color,";
-
-			$first_id_query_strategy_part = $query_strategy_part;
-
-			if ($feed == Feeds::FEED_FRESH)
-				$first_id_query_strategy_part = "true";
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-				$sanity_interval_qpart = "date_entered >= NOW() - INTERVAL '1 hour' AND";
-
-				$distinct_columns = str_replace("desc", "", strtolower($order_by));
-				$distinct_qpart = "DISTINCT ON (id, $distinct_columns)";
-			} else {
-				$sanity_interval_qpart = "date_entered >= DATE_SUB(NOW(), INTERVAL 1 hour) AND";
-				$distinct_qpart = "DISTINCT"; //fallback
-			}
-
-			// except for Labels category
-			if (get_pref(Prefs::HEADLINES_NO_DISTINCT, $owner_uid) && !($feed == Feeds::CATEGORY_LABELS && $cat_view)) {
-				$distinct_qpart = "";
-			}
-
-			if (!$search && !$skip_first_id_check) {
-				// if previous topmost article id changed that means our current pagination is no longer valid
-				$query = "SELECT
-							ttrss_entries.id,
-							date_entered,
-							$yyiw_qpart,
-							guid,
-							ttrss_entries.title,
-							ttrss_feeds.title,
-							updated,
-							score,
-							marked,
-							published,
-							last_marked,
-							last_published,
-							last_read
-						FROM
-							$from_qpart
-						WHERE
-						$feed_check_qpart
-						ttrss_user_entries.owner_uid = ".$pdo->quote($owner_uid)." AND
-						$search_query_part
-						$start_ts_query_part
-						$since_id_part
-						$sanity_interval_qpart
-						$first_id_query_strategy_part ORDER BY $order_by LIMIT 1";
-
-				if (!empty($_REQUEST["debug"])) {
-					print "\n*** FIRST ID QUERY ***\n$query\n";
-				}
-
-				$res = $pdo->query($query);
-
-				if (!empty($res) && $row = $res->fetch()) {
-					$first_id = (int)$row["id"];
-
-					if ($offset > 0 && $first_id && $check_first_id && $first_id != $check_first_id) {
-						return array(-1, $feed_title, $feed_site_url, $last_error, $last_updated, $search_words, $first_id, $vfeed_query_part != "", $query_error_override);
-					}
-				}
-			}
-
-			$query = "SELECT $distinct_qpart
-						ttrss_entries.id AS id,
-						date_entered,
-						$yyiw_qpart,
-						guid,
-						ttrss_entries.title,
-						updated,
-						label_cache,
-						tag_cache,
-						always_display_enclosures,
-						site_url,
-						note,
-						num_comments,
-						comments,
-						int_id,
-						uuid,
-						lang,
-						hide_images,
-						unread,feed_id,marked,published,link,last_read,
-						last_marked, last_published,
-						$vfeed_query_part
-						$content_query_part
-						author,score,
-						(SELECT count(label_id) FROM ttrss_user_labels2 WHERE article_id = ttrss_entries.id) AS num_labels,
-						(SELECT count(id) FROM ttrss_enclosures WHERE post_id = ttrss_entries.id) AS num_enclosures
-					FROM
-						$from_qpart
-					WHERE
-					$feed_check_qpart
-					ttrss_user_entries.owner_uid = ".$pdo->quote($owner_uid)." AND
-					$search_query_part
-					$start_ts_query_part
-					$view_query_part
-					$since_id_part
-					$query_strategy_part ORDER BY $order_by
-					$limit_query_part $offset_query_part";
-
-			//if ($_REQUEST["debug"]) print $query;
-
-			if (!empty($_REQUEST["debug"])) {
-				print "\n*** HEADLINES QUERY ***\n$query\n";
-			}
-
-			$res = $pdo->query($query);
-
-		} else {
-			// browsing by tag
-
-			if (get_pref(Prefs::HEADLINES_NO_DISTINCT, $owner_uid)) {
-				$distinct_qpart = "";
-			} else {
-				if (Config::get(Config::DB_TYPE) == "pgsql") {
-					$distinct_columns = str_replace("desc", "", strtolower($order_by));
-					$distinct_qpart = "DISTINCT ON (id, $distinct_columns)";
-				} else {
-					$distinct_qpart = "DISTINCT"; //fallback
-				}
-			}
-
-			$query = "SELECT $distinct_qpart
-							ttrss_entries.id AS id,
-							date_entered,
-							$yyiw_qpart,
-							guid,
-							ttrss_entries.title,
-							updated,
-							label_cache,
-							tag_cache,
-							always_display_enclosures,
-							site_url,
-							note,
-							num_comments,
-							comments,
-							int_id,
-							uuid,
-							lang,
-							hide_images,
-							unread,feed_id,marked,published,link,last_read,
-							last_marked, last_published,
-							$since_id_part
-							$vfeed_query_part
-							$content_query_part
-							author, score,
-							(SELECT count(label_id) FROM ttrss_user_labels2 WHERE article_id = ttrss_entries.id) AS num_labels,
-							(SELECT count(id) FROM ttrss_enclosures WHERE post_id = ttrss_entries.id) AS num_enclosures
-						FROM ttrss_entries,
-							ttrss_user_entries LEFT JOIN ttrss_feeds ON (ttrss_feeds.id = ttrss_user_entries.feed_id),
-							ttrss_tags
-						WHERE
-							ref_id = ttrss_entries.id AND
-							ttrss_user_entries.owner_uid = ".$pdo->quote($owner_uid)." AND
-							post_int_id = int_id AND
-							tag_name = ".$pdo->quote($feed)." AND
-							$view_query_part
-							$search_query_part
-							$start_ts_query_part
-							$query_strategy_part ORDER BY $order_by
-							$limit_query_part $offset_query_part";
-
-			//if ($_REQUEST["debug"]) print $query;
-
-			if (!empty($_REQUEST["debug"])) {
-				print "\n*** TAGS QUERY ***\n$query\n";
-			}
-
-			$res = $pdo->query($query);
-		}
-
-		$span->end();
-
-		return array($res, $feed_title, $feed_site_url, $last_error, $last_updated, $search_words, $first_id, $vfeed_query_part != "", $query_error_override);
-	}
-
-	/**
-	 * @return array<int, int>
-	 */
-	static function _get_parent_cats(int $cat, int $owner_uid): array {
-		$rv = array();
-
-		$pdo = Db::pdo();
-
-		$sth = $pdo->prepare("SELECT parent_cat FROM ttrss_feed_categories
-			WHERE id = ? AND parent_cat IS NOT NULL AND owner_uid = ?");
-		$sth->execute([$cat, $owner_uid]);
-
-		while ($line = $sth->fetch()) {
-			$cat = (int) $line["parent_cat"];
-			array_push($rv, $cat, ...self::_get_parent_cats($cat, $owner_uid));
-		}
-
-		return $rv;
-	}
-
-	/**
-	 * @return array<int, int>
-	 */
-	static function _get_child_cats(int $cat, int $owner_uid): array {
-		$rv = array();
-
-		$pdo = Db::pdo();
-
-		$sth = $pdo->prepare("SELECT id FROM ttrss_feed_categories
-			WHERE parent_cat = ? AND owner_uid = ?");
-		$sth->execute([$cat, $owner_uid]);
-
-		while ($line = $sth->fetch()) {
-			array_push($rv, $line["id"], ...self::_get_child_cats($line["id"], $owner_uid));
-		}
-
-		return $rv;
-	}
-
-	/**
-	 * @param array<int, int> $feeds
-	 * @return array<int, int>
-	 */
-	static function _cats_of(array $feeds, int $owner_uid, bool $with_parents = false): array {
-		if (count($feeds) == 0)
-			return [];
-
-		$pdo = Db::pdo();
-
-		$feeds_qmarks = arr_qmarks($feeds);
-
-		$sth = $pdo->prepare("SELECT DISTINCT cat_id, fc.parent_cat FROM ttrss_feeds f LEFT JOIN ttrss_feed_categories fc
-				ON (fc.id = f.cat_id)
-				WHERE f.owner_uid = ? AND f.id IN ($feeds_qmarks)");
-		$sth->execute([$owner_uid, ...$feeds]);
-
-		$rv = [];
-
-		if ($row = $sth->fetch()) {
-			$cat_id = (int) $row["cat_id"];
-			$rv[] = $cat_id;
-			array_push($rv, (int)$row["cat_id"]);
-
-			if ($with_parents && $row["parent_cat"]) {
-				array_push($rv, ...self::_get_parent_cats($cat_id, $owner_uid));
-			}
-		}
-
-		$rv = array_unique($rv);
-
-		return $rv;
-	}
-
-	// returns Uncategorized as 0
-	static function _cat_of(int $feed) : int {
-		$feed = ORM::for_table('ttrss_feeds')->find_one($feed);
-
-		if ($feed) {
-			return (int)$feed->cat_id;
-		} else {
-			return -1;
-		}
-	}
-
-	private function _color_of(string $name): string {
-		$colormap = [ "#1cd7d7","#d91111","#1212d7","#8e16e5","#7b7b7b",
-			"#39f110","#0bbea6","#ec0e0e","#1534f2","#b9e416",
-			"#479af2","#f36b14","#10c7e9","#1e8fe7","#e22727" ];
-
-		$sum = 0;
-
-		for ($i = 0; $i < strlen($name); $i++) {
-			$sum += ord($name[$i]);
-		}
-
-		$sum %= count($colormap);
-
-		return $colormap[$sum];
-	}
-
-	/**
-	 * @return array<string, string> array of feed URL -> feed title
-	 */
-	private static function _get_feeds_from_html(string $url, string $content): array {
-		$url = UrlHelper::validate($url);
-		$baseUrl = substr($url, 0, strrpos($url, '/') + 1);
-
-		$feedUrls = [];
-
-		$doc = new DOMDocument();
-		if (@$doc->loadHTML($content)) {
-			$xpath = new DOMXPath($doc);
-			$entries = $xpath->query('/html/head/link[@rel="alternate" and '.
-				'(contains(@type,"rss") or contains(@type,"atom"))]|/html/head/link[@rel="feed"]');
-
-			foreach ($entries as $entry) {
-				if ($entry->hasAttribute('href')) {
-					$title = $entry->getAttribute('title');
-					if ($title == '') {
-						$title = $entry->getAttribute('type');
-					}
-					$feedUrl = UrlHelper::rewrite_relative($baseUrl, $entry->getAttribute('href'));
-					$feedUrls[$feedUrl] = $title;
-				}
-			}
-		}
-		return $feedUrls;
-	}
-
-	static function _is_html(string $content): bool {
-		return preg_match("/<html|DOCTYPE html/i", substr($content, 0, 8192)) !== 0;
-	}
-
-	static function _remove_cat(int $id, int $owner_uid): void {
-		$cat = ORM::for_table('ttrss_feed_categories')
-			->where('owner_uid', $owner_uid)
-			->find_one($id);
-
-		if ($cat)
-			$cat->delete();
-	}
-
-	static function _add_cat(string $title, int $owner_uid, int $parent_cat = null, int $order_id = 0): bool {
-
-		$cat = ORM::for_table('ttrss_feed_categories')
-			->where('owner_uid', $owner_uid)
-			->where('parent_cat', $parent_cat)
-			->where('title', $title)
-			->find_one();
-
-		if (!$cat) {
-			$cat = ORM::for_table('ttrss_feed_categories')->create();
-
-			$cat->set([
-				'owner_uid' => $owner_uid,
-				'parent_cat' => $parent_cat,
-				'order_id' => $order_id,
-				'title' => $title,
-			]);
-
-			return $cat->save();
-		}
-
-		return false;
-	}
-
-	static function _clear_access_keys(int $owner_uid): void {
-		$key = ORM::for_table('ttrss_access_keys')
-			->where('owner_uid', $owner_uid)
-			->delete_many();
-	}
-
-	/**
-	 * @param string $feed_id may be a feed ID or tag
-	 *
-	 * @see Handler_Public#generate_syndicated_feed()
-	 */
-	static function _update_access_key(string $feed_id, bool $is_cat, int $owner_uid): ?string {
-		$key = ORM::for_table('ttrss_access_keys')
-			->where('owner_uid', $owner_uid)
-			->where('feed_id', $feed_id)
-			->where('is_cat', $is_cat)
-			->delete_many();
-
-		return self::_get_access_key($feed_id, $is_cat, $owner_uid);
-	}
-
-	/**
-	 * @param string $feed_id may be a feed ID or tag
-	 *
-	 * @see Handler_Public#generate_syndicated_feed()
-	 */
-	static function _get_access_key(string $feed_id, bool $is_cat, int $owner_uid): ?string {
-		$key = ORM::for_table('ttrss_access_keys')
-			->where('owner_uid', $owner_uid)
-			->where('feed_id', $feed_id)
-			->where('is_cat', $is_cat)
-			->find_one();
-
-		if ($key) {
-			return $key->access_key;
-		}
-
-		$key = ORM::for_table('ttrss_access_keys')->create();
-
-		$key->owner_uid = $owner_uid;
-		$key->feed_id = $feed_id;
-		$key->is_cat = $is_cat;
-		$key->access_key = uniqid_short();
-
-		if ($key->save()) {
-			return $key->access_key;
-		}
-
-		return null;
-	}
-
-	static function _purge(int $feed_id, int $purge_interval): ?int {
-
-		if (!$purge_interval) $purge_interval = self::_get_purge_interval($feed_id);
-
-		$pdo = Db::pdo();
-
-		$owner_uid = false;
-		$rows_deleted = 0;
-
-		$sth = $pdo->prepare("SELECT owner_uid FROM ttrss_feeds WHERE id = ?");
-		$sth->execute([$feed_id]);
-
-		if ($row = $sth->fetch()) {
-			$owner_uid = $row["owner_uid"];
-
-			if (Config::get(Config::FORCE_ARTICLE_PURGE) != 0) {
-				Debug::log("purge_feed: FORCE_ARTICLE_PURGE is set, overriding interval to " . Config::get(Config::FORCE_ARTICLE_PURGE), Debug::LOG_VERBOSE);
-				$purge_unread = true;
-				$purge_interval = Config::get(Config::FORCE_ARTICLE_PURGE);
-			} else {
-				$purge_unread = get_pref(Prefs::PURGE_UNREAD_ARTICLES, $owner_uid);
-			}
-
-			$purge_interval = (int) $purge_interval;
-
-			Debug::log("purge_feed: interval $purge_interval days for feed $feed_id, owner: $owner_uid, purge unread: $purge_unread", Debug::LOG_VERBOSE);
-
-			if ($purge_interval <= 0) {
-				Debug::log("purge_feed: purging disabled for this feed, nothing to do.", Debug::LOG_VERBOSE);
-				return null;
-			}
-
-			if (!$purge_unread)
-				$query_limit = " unread = false AND ";
-			else
-				$query_limit = "";
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-				$sth = $pdo->prepare("DELETE FROM ttrss_user_entries
-					USING ttrss_entries
-					WHERE ttrss_entries.id = ref_id AND
-					marked = false AND
-					feed_id = ? AND
-					$query_limit
-					ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
-				$sth->execute([$feed_id]);
-
-			} else {
-				$sth  = $pdo->prepare("DELETE FROM ttrss_user_entries
-					USING ttrss_user_entries, ttrss_entries
-					WHERE ttrss_entries.id = ref_id AND
-					marked = false AND
-					feed_id = ? AND
-					$query_limit
-					ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
-				$sth->execute([$feed_id]);
-
-			}
-
-			$rows_deleted = $sth->rowCount();
-
-			Debug::log("purge_feed: deleted $rows_deleted articles.", Debug::LOG_VERBOSE);
-
-		} else {
-			Debug::log("purge_feed: owner of $feed_id not found", Debug::LOG_VERBOSE);
-		}
-
-		return $rows_deleted;
-	}
-
-	private static function _get_purge_interval(int $feed_id): int {
-		$feed = ORM::for_table('ttrss_feeds')->find_one($feed_id);
-
-		if ($feed) {
-			if ($feed->purge_interval != 0)
-				return $feed->purge_interval;
-			else
-				return get_pref(Prefs::PURGE_OLD_DAYS, $feed->owner_uid);
-		} else {
-			return -1;
-		}
-	}
-
-	/**
-	 * @return array{0: string, 1: array<int, string>} [$search_query_part, $search_words]
-	 */
-	private static function _search_to_sql(string $search, string $search_language, int $owner_uid): array {
-		$keywords = str_getcsv(preg_replace('/(-?\w+)\:"(\w+)/', '"{$1}:{$2}', trim($search)), ' ');
-		$query_keywords = array();
-		$search_words = array();
-		$search_query_leftover = array();
-
-		$pdo = Db::pdo();
-
-		if ($search_language)
-			$search_language = $pdo->quote(mb_strtolower($search_language));
-		else
-			$search_language = $pdo->quote(mb_strtolower(get_pref(Prefs::DEFAULT_SEARCH_LANGUAGE, $owner_uid)));
-
-		foreach ($keywords as $k) {
-			if (strpos($k, "-") === 0) {
-				$k = substr($k, 1);
-				$not = "NOT";
-			} else {
-				$not = "";
-			}
-
-			$commandpair = explode(":", mb_strtolower($k), 2);
-
-			switch ($commandpair[0]) {
-				case "title":
-					if ($commandpair[1]) {
-						array_push($query_keywords, "($not (LOWER(ttrss_entries.title) LIKE ".
-							$pdo->quote('%' . mb_strtolower($commandpair[1]) . '%') ."))");
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						array_push($search_words, $k);
-					}
-					break;
-				case "author":
-					if ($commandpair[1]) {
-						array_push($query_keywords, "($not (LOWER(author) LIKE ".
-							$pdo->quote('%' . mb_strtolower($commandpair[1]) . '%')."))");
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						array_push($search_words, $k);
-					}
-					break;
-				case "note":
-					if ($commandpair[1]) {
-						if ($commandpair[1] == "true")
-							array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
-						else if ($commandpair[1] == "false")
-							array_push($query_keywords, "($not (note IS NULL OR note = ''))");
-						else
-							array_push($query_keywords, "($not (LOWER(note) LIKE ".
-								$pdo->quote('%' . mb_strtolower($commandpair[1]) . '%')."))");
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").")
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						if (!$not) array_push($search_words, $k);
-					}
-					break;
-				case "star":
-
-					if ($commandpair[1]) {
-						if ($commandpair[1] == "true")
-							array_push($query_keywords, "($not (marked = true))");
-						else
-							array_push($query_keywords, "($not (marked = false))");
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").")
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						if (!$not) array_push($search_words, $k);
-					}
-					break;
-				case "pub":
-					if ($commandpair[1]) {
-						if ($commandpair[1] == "true")
-							array_push($query_keywords, "($not (published = true))");
-						else
-							array_push($query_keywords, "($not (published = false))");
-
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						if (!$not) array_push($search_words, $k);
-					}
-					break;
-				case "label":
-					if ($commandpair[1]) {
-						$label_id = Labels::find_id($commandpair[1], $_SESSION["uid"]);
-
-						if ($label_id) {
-							array_push($query_keywords, "($not
-								(ttrss_entries.id IN (
-									SELECT article_id FROM ttrss_user_labels2 WHERE
-										label_id = $label_id)))");
-						} else {
-							array_push($query_keywords, "(false)");
-						}
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").")
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						if (!$not) array_push($search_words, $k);
-					}
-					break;
-				case "unread":
-					if ($commandpair[1]) {
-						if ($commandpair[1] == "true")
-							array_push($query_keywords, "($not (unread = true))");
-						else
-							array_push($query_keywords, "($not (unread = false))");
-
-					} else {
-						array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").")
-								OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						if (!$not) array_push($search_words, $k);
-					}
-					break;
-				default:
-					if (strpos($k, "@") === 0) {
-
-						$user_tz_string = get_pref(Prefs::USER_TIMEZONE, $_SESSION['uid']);
-						$orig_ts = strtotime(substr($k, 1));
-						$k = date("Y-m-d", TimeHelper::convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
-
-						//$k = date("Y-m-d", strtotime(substr($k, 1)));
-
-						array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
-					} else {
-
-						if (Config::get(Config::DB_TYPE) == "pgsql") {
-							$k = mb_strtolower($k);
-							array_push($search_query_leftover, $not ? "!$k" : $k);
-						} else {
-							$k = mb_strtolower($k);
-							array_push($search_query_leftover, $not ? "-$k" : $k);
-
-							//array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").")
-							//	OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))");
-						}
-
-						if (!$not) array_push($search_words, $k);
-					}
-			}
-		}
-
-		if (count($search_query_leftover) > 0) {
-
-			if (Config::get(Config::DB_TYPE) == "pgsql") {
-
-				// if there's no joiners consider this a "simple" search and
-				// concatenate everything with &, otherwise don't try to mess with tsquery syntax
-				if (preg_match("/[&|]/", implode(" " , $search_query_leftover))) {
-					$tsquery = $pdo->quote(implode(" ", $search_query_leftover));
-				} else {
-					$tsquery = $pdo->quote(implode(" & ", $search_query_leftover));
-				}
-
-				array_push($query_keywords,
-					"(tsvector_combined @@ to_tsquery($search_language, $tsquery))");
-			} else {
-				$ft_query = $pdo->quote(implode(" ", $search_query_leftover));
-
-				array_push($query_keywords,
-					"MATCH (ttrss_entries.title, ttrss_entries.content) AGAINST ($ft_query IN BOOLEAN MODE)");
-			}
-		}
-
-		if (count($query_keywords) > 0)
-			$search_query_part = implode("AND ", $query_keywords);
-		else
-			$search_query_part = "false";
-
-		return array($search_query_part, $search_words);
-	}
-
-	/**
-	 * @return array{0: string, 1: bool}
-	 */
-	static function _order_to_override_query(string $order): array {
-		$query = "";
-		$skip_first_id = false;
-
-		PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_HEADLINES_CUSTOM_SORT_OVERRIDE,
-			function ($result) use (&$query, &$skip_first_id) {
-				list ($query, $skip_first_id) = $result;
-
-				// run until first hard match
-				return !empty($query);
-			},
-			$order);
-
-		if (is_string($query) && $query !== "") {
-			return [$query, $skip_first_id];
-		}
-
-		switch ($order) {
-			case "title":
-				$query = "ttrss_entries.title, date_entered, updated";
-				break;
-			case "date_reverse":
-				$query = "updated";
-				$skip_first_id = true;
-				break;
-			case "feed_dates":
-				$query = "updated DESC";
-				break;
-		}
-
-		return [$query, $skip_first_id];
-	}
-
-}
-