From 97b7d5c0380ac0fdc846306689d3d8015b6b6e62 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Wed, 5 Mar 2014 16:48:41 +0400
Subject: [PATCH] split functions php into two parts because syntastic is too
 slow get_feeds_from_html: stricter feed detection based on whatwg guidelines

---
 classes/handler/public.php |   12 +
 include/functions.php      | 2396 +----------------------------------
 include/functions2.php     | 2397 ++++++++++++++++++++++++++++++++++++
 3 files changed, 2411 insertions(+), 2394 deletions(-)
 create mode 100644 include/functions2.php

diff --git a/classes/handler/public.php b/classes/handler/public.php
index 2ea7447d..bd504526 100644
--- a/classes/handler/public.php
+++ b/classes/handler/public.php
@@ -587,6 +587,18 @@ class Handler_Public extends Handler {
 		}
 	}
 
+	function subtest() {
+		header("Content-type: text/plain; charset=utf-8");
+
+		$url = $_REQUEST["url"];
+
+		print "$url\n\n";
+
+
+		print_r(get_feeds_from_html($url, fetch_file_contents($url)));
+
+	}
+
 	function subscribe() {
 		if (SINGLE_USER_MODE) {
 			login_sequence();
diff --git a/include/functions.php b/include/functions.php
index 75722515..37efefbc 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -1996,2399 +1996,7 @@
 		}
 	}
 
-	function make_init_params() {
-		$params = array();
-
-		foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
-			"ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
-			"CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE",
-			"HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
-
-				 $params[strtolower($param)] = (int) get_pref($param);
-		 }
-
-		$params["icons_url"] = ICONS_URL;
-		$params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
-		$params["default_view_mode"] = get_pref("_DEFAULT_VIEW_MODE");
-		$params["default_view_limit"] = (int) get_pref("_DEFAULT_VIEW_LIMIT");
-		$params["default_view_order_by"] = get_pref("_DEFAULT_VIEW_ORDER_BY");
-		$params["bw_limit"] = (int) $_SESSION["bw_limit"];
-		$params["label_base_index"] = (int) LABEL_BASE_INDEX;
-
-		$result = db_query("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
-			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
-
-		$max_feed_id = db_fetch_result($result, 0, "mid");
-		$num_feeds = db_fetch_result($result, 0, "nf");
-
-		$params["max_feed_id"] = (int) $max_feed_id;
-		$params["num_feeds"] = (int) $num_feeds;
-
-		$params["hotkeys"] = get_hotkeys_map();
-
-		$params["csrf_token"] = $_SESSION["csrf_token"];
-		$params["widescreen"] = (int) $_COOKIE["ttrss_widescreen"];
-
-		$params['simple_update'] = defined('SIMPLE_UPDATE_MODE') && SIMPLE_UPDATE_MODE;
-
-		return $params;
-	}
-
-	function get_hotkeys_info() {
-		$hotkeys = array(
-			__("Navigation") => array(
-				"next_feed" => __("Open next feed"),
-				"prev_feed" => __("Open previous feed"),
-				"next_article" => __("Open next article"),
-				"prev_article" => __("Open previous article"),
-				"next_article_noscroll" => __("Open next article (don't scroll long articles)"),
-				"prev_article_noscroll" => __("Open previous article (don't scroll long articles)"),
-				"next_article_noexpand" => __("Move to next article (don't expand or mark read)"),
-				"prev_article_noexpand" => __("Move to previous article (don't expand or mark read)"),
-				"search_dialog" => __("Show search dialog")),
-			__("Article") => array(
-				"toggle_mark" => __("Toggle starred"),
-				"toggle_publ" => __("Toggle published"),
-				"toggle_unread" => __("Toggle unread"),
-				"edit_tags" => __("Edit tags"),
-				"dismiss_selected" => __("Dismiss selected"),
-				"dismiss_read" => __("Dismiss read"),
-				"open_in_new_window" => __("Open in new window"),
-				"catchup_below" => __("Mark below as read"),
-				"catchup_above" => __("Mark above as read"),
-				"article_scroll_down" => __("Scroll down"),
-				"article_scroll_up" => __("Scroll up"),
-				"select_article_cursor" => __("Select article under cursor"),
-				"email_article" => __("Email article"),
-				"close_article" => __("Close/collapse article"),
-				"toggle_expand" => __("Toggle article expansion (combined mode)"),
-				"toggle_widescreen" => __("Toggle widescreen mode"),
-				"toggle_embed_original" => __("Toggle embed original")),
-			__("Article selection") => array(
-				"select_all" => __("Select all articles"),
-				"select_unread" => __("Select unread"),
-				"select_marked" => __("Select starred"),
-				"select_published" => __("Select published"),
-				"select_invert" => __("Invert selection"),
-				"select_none" => __("Deselect everything")),
-			__("Feed") => array(
-				"feed_refresh" => __("Refresh current feed"),
-				"feed_unhide_read" => __("Un/hide read feeds"),
-				"feed_subscribe" => __("Subscribe to feed"),
-				"feed_edit" => __("Edit feed"),
-				"feed_catchup" => __("Mark as read"),
-				"feed_reverse" => __("Reverse headlines"),
-				"feed_debug_update" => __("Debug feed update"),
-				"catchup_all" => __("Mark all feeds as read"),
-				"cat_toggle_collapse" => __("Un/collapse current category"),
-				"toggle_combined_mode" => __("Toggle combined mode"),
-				"toggle_cdm_expanded" => __("Toggle auto expand in combined mode")),
-			__("Go to") => array(
-				"goto_all" => __("All articles"),
-				"goto_fresh" => __("Fresh"),
-				"goto_marked" => __("Starred"),
-				"goto_published" => __("Published"),
-				"goto_tagcloud" => __("Tag cloud"),
-				"goto_prefs" => __("Preferences")),
-			__("Other") => array(
-				"create_label" => __("Create label"),
-				"create_filter" => __("Create filter"),
-				"collapse_sidebar" => __("Un/collapse sidebar"),
-				"help_dialog" => __("Show help dialog"))
-			);
-
-		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_INFO) as $plugin) {
-			$hotkeys = $plugin->hook_hotkey_info($hotkeys);
-		}
-
-		return $hotkeys;
-	}
-
-	function get_hotkeys_map() {
-		$hotkeys = array(
-//			"navigation" => array(
-				"k" => "next_feed",
-				"j" => "prev_feed",
-				"n" => "next_article",
-				"p" => "prev_article",
-				"(38)|up" => "prev_article",
-				"(40)|down" => "next_article",
-//				"^(38)|Ctrl-up" => "prev_article_noscroll",
-//				"^(40)|Ctrl-down" => "next_article_noscroll",
-				"(191)|/" => "search_dialog",
-//			"article" => array(
-				"s" => "toggle_mark",
-				"*s" => "toggle_publ",
-				"u" => "toggle_unread",
-				"*t" => "edit_tags",
-				"*d" => "dismiss_selected",
-				"*x" => "dismiss_read",
-				"o" => "open_in_new_window",
-				"c p" => "catchup_below",
-				"c n" => "catchup_above",
-				"*n" => "article_scroll_down",
-				"*p" => "article_scroll_up",
-				"*(38)|Shift+up" => "article_scroll_up",
-				"*(40)|Shift+down" => "article_scroll_down",
-				"a *w" => "toggle_widescreen",
-				"a e" => "toggle_embed_original",
-				"e" => "email_article",
-				"a q" => "close_article",
-//			"article_selection" => array(
-				"a a" => "select_all",
-				"a u" => "select_unread",
-				"a *u" => "select_marked",
-				"a p" => "select_published",
-				"a i" => "select_invert",
-				"a n" => "select_none",
-//			"feed" => array(
-				"f r" => "feed_refresh",
-				"f a" => "feed_unhide_read",
-				"f s" => "feed_subscribe",
-				"f e" => "feed_edit",
-				"f q" => "feed_catchup",
-				"f x" => "feed_reverse",
-				"f *d" => "feed_debug_update",
-				"f *c" => "toggle_combined_mode",
-				"f c" => "toggle_cdm_expanded",
-				"*q" => "catchup_all",
-				"x" => "cat_toggle_collapse",
-//			"goto" => array(
-				"g a" => "goto_all",
-				"g f" => "goto_fresh",
-				"g s" => "goto_marked",
-				"g p" => "goto_published",
-				"g t" => "goto_tagcloud",
-				"g *p" => "goto_prefs",
-//			"other" => array(
-				"(9)|Tab" => "select_article_cursor", // tab
-				"c l" => "create_label",
-				"c f" => "create_filter",
-				"c s" => "collapse_sidebar",
-				"^(191)|Ctrl+/" => "help_dialog",
-			);
-
-		if (get_pref('COMBINED_DISPLAY_MODE')) {
-			$hotkeys["^(38)|Ctrl-up"] = "prev_article_noscroll";
-			$hotkeys["^(40)|Ctrl-down"] = "next_article_noscroll";
-		}
-
-		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_MAP) as $plugin) {
-			$hotkeys = $plugin->hook_hotkey_map($hotkeys);
-		}
-
-		$prefixes = array();
-
-		foreach (array_keys($hotkeys) as $hotkey) {
-			$pair = explode(" ", $hotkey, 2);
-
-			if (count($pair) > 1 && !in_array($pair[0], $prefixes)) {
-				array_push($prefixes, $pair[0]);
-			}
-		}
-
-		return array($prefixes, $hotkeys);
-	}
-
-	function make_runtime_info() {
-		$data = array();
-
-		$result = db_query("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
-			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
-
-		$max_feed_id = db_fetch_result($result, 0, "mid");
-		$num_feeds = db_fetch_result($result, 0, "nf");
-
-		$data["max_feed_id"] = (int) $max_feed_id;
-		$data["num_feeds"] = (int) $num_feeds;
-
-		$data['last_article_id'] = getLastArticleId();
-		$data['cdm_expanded'] = get_pref('CDM_EXPANDED');
-
-		$data['dep_ts'] = calculate_dep_timestamp();
-		$data['reload_on_ts_change'] = !defined('_NO_RELOAD_ON_TS_CHANGE');
-
-		if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
-
-			$data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
-
-			if (time() - $_SESSION["daemon_stamp_check"] > 30) {
-
-				$stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
-
-				if ($stamp) {
-					$stamp_delta = time() - $stamp;
-
-					if ($stamp_delta > 1800) {
-						$stamp_check = 0;
-					} else {
-						$stamp_check = 1;
-						$_SESSION["daemon_stamp_check"] = time();
-					}
-
-					$data['daemon_stamp_ok'] = $stamp_check;
-
-					$stamp_fmt = date("Y.m.d, G:i", $stamp);
-
-					$data['daemon_stamp'] = $stamp_fmt;
-				}
-			}
-		}
-
-		if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
-				$new_version_details = @check_for_update();
-
-				$data['new_version_available'] = (int) ($new_version_details != false);
-
-				$_SESSION["last_version_check"] = time();
-				$_SESSION["version_data"] = $new_version_details;
-		}
-
-		return $data;
-	}
-
-	function search_to_sql($search) {
-
-		$search_query_part = "";
-
-		$keywords = str_getcsv($search, " ");
-		$query_keywords = array();
-		$search_words = array();
-
-		foreach ($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 '%".
-						db_escape_string(mb_strtolower($commandpair[1]))."%'))");
-				} else {
-					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
-					array_push($search_words, $k);
-				}
-				break;
-			case "author":
-				if ($commandpair[1]) {
-					array_push($query_keywords, "($not (LOWER(author) LIKE '%".
-						db_escape_string(mb_strtolower($commandpair[1]))."%'))");
-				} else {
-					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$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 '%".
-							db_escape_string(mb_strtolower($commandpair[1]))."%'))");
-				} else {
-					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$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) $not LIKE UPPER('%$k%')
-							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$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) $not LIKE UPPER('%$k%'))");
-					if (!$not) array_push($search_words, $k);
-				}
-				break;
-			default:
-				if (strpos($k, "@") === 0) {
-
-					$user_tz_string = get_pref('USER_TIMEZONE', $_SESSION['uid']);
-					$orig_ts = strtotime(substr($k, 1));
-					$k = date("Y-m-d", convert_timestamp($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 {
-					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
-							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
-
-					if (!$not) array_push($search_words, $k);
-				}
-			}
-		}
-
-		$search_query_part = implode("AND", $query_keywords);
-
-		return array($search_query_part, $search_words);
-	}
-
-	function getParentCategories($cat, $owner_uid) {
-		$rv = array();
-
-		$result = db_query("SELECT parent_cat FROM ttrss_feed_categories
-			WHERE id = '$cat' AND parent_cat IS NOT NULL AND owner_uid = $owner_uid");
-
-		while ($line = db_fetch_assoc($result)) {
-			array_push($rv, $line["parent_cat"]);
-			$rv = array_merge($rv, getParentCategories($line["parent_cat"], $owner_uid));
-		}
-
-		return $rv;
-	}
-
-	function getChildCategories($cat, $owner_uid) {
-		$rv = array();
-
-		$result = db_query("SELECT id FROM ttrss_feed_categories
-			WHERE parent_cat = '$cat' AND owner_uid = $owner_uid");
-
-		while ($line = db_fetch_assoc($result)) {
-			array_push($rv, $line["id"]);
-			$rv = array_merge($rv, getChildCategories($line["id"], $owner_uid));
-		}
-
-		return $rv;
-	}
-
-	function queryFeedHeadlines($feed, $limit, $view_mode, $cat_view, $search, $search_mode, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false, $ignore_vfeed_group = false, $override_strategy = false, $override_vfeed = false) {
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$ext_tables_part = "";
-		$search_words = array();
-
-			if ($search) {
-
-				if (SPHINX_ENABLED) {
-					$ids = join(",", @sphinx_search($search, 0, 500));
-
-					if ($ids)
-						$search_query_part = "ref_id IN ($ids) AND ";
-					else
-						$search_query_part = "ref_id = -1 AND ";
-
-				} else {
-					list($search_query_part, $search_words) = search_to_sql($search);
-					$search_query_part .= " AND ";
-				}
-
-			} else {
-				$search_query_part = "";
-			}
-
-			if ($filter) {
-
-				if (DB_TYPE == "pgsql") {
-					$query_strategy_part .= " AND updated > NOW() - INTERVAL '14 days' ";
-				} else {
-					$query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL 14 DAY) ";
-				}
-
-				$override_order = "updated DESC";
-
-				$filter_query_part = filter_to_sql($filter, $owner_uid);
-
-				// Try to check if SQL regexp implementation chokes on a valid regexp
-
-
-				$result = db_query("SELECT true AS true_val FROM ttrss_entries,
-					ttrss_user_entries, ttrss_feeds
-					WHERE $filter_query_part LIMIT 1", false);
-
-				if ($result) {
-					$test = db_fetch_result($result, 0, "true_val");
-
-					if (!$test) {
-						$filter_query_part = "false AND";
-					} else {
-						$filter_query_part .= " AND";
-					}
-				} else {
-					$filter_query_part = "false AND";
-				}
-
-			} else {
-				$filter_query_part = "";
-			}
-
-			if ($since_id) {
-				$since_id_part = "ttrss_entries.id > $since_id AND ";
-			} else {
-				$since_id_part = "";
-			}
-
-			$view_query_part = "";
-
-			if ($view_mode == "adaptive") {
-				if ($search) {
-					$view_query_part = " ";
-				} else if ($feed != -1) {
-
-					$unread = getFeedUnread($feed, $cat_view);
-
-					if ($cat_view && $feed > 0 && $include_children)
-						$unread += getCategoryChildrenUnread($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 != -6) {
-				$view_query_part = " unread = true AND ";
-			}
-
-			if ($limit > 0) {
-				$limit_query_part = "LIMIT " . $limit;
-			}
-
-			$allow_archived = false;
-
-			$vfeed_query_part = "";
-
-			// override query strategy and enable feed display when searching globally
-			if ($search && $search_mode == "all_feeds") {
-				$query_strategy_part = "true";
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-			/* tags */
-			} else if (!is_numeric($feed)) {
-				$query_strategy_part = "true";
-				$vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
-					id = feed_id) as feed_title,";
-			} else if ($search && $search_mode == "this_cat") {
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-
-				if ($feed > 0) {
-					if ($include_children) {
-						$subcats = getChildCategories($feed, $owner_uid);
-						array_push($subcats, $feed);
-						$cats_qpart = join(",", $subcats);
-					} else {
-						$cats_qpart = $feed;
-					}
-
-					$query_strategy_part = "ttrss_feeds.cat_id IN ($cats_qpart)";
-
-				} else {
-					$query_strategy_part = "ttrss_feeds.cat_id IS NULL";
-				}
-
-			} else if ($feed > 0) {
-
-				if ($cat_view) {
-
-					if ($feed > 0) {
-						if ($include_children) {
-							# sub-cats
-							$subcats = getChildCategories($feed, $owner_uid);
-
-							array_push($subcats, $feed);
-							$query_strategy_part = "cat_id IN (".
-									implode(",", $subcats).")";
-
-						} else {
-							$query_strategy_part = "cat_id = '$feed'";
-						}
-
-					} else {
-						$query_strategy_part = "cat_id IS NULL";
-					}
-
-					$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-
-				} else {
-					$query_strategy_part = "feed_id = '$feed'";
-				}
-			} else if ($feed == 0 && !$cat_view) { // archive virtual feed
-				$query_strategy_part = "feed_id IS NULL";
-				$allow_archived = true;
-			} else if ($feed == 0 && $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
-				$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 OR labels category
-
-				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 == -6) { // recently read
-				$query_strategy_part = "unread = false AND last_read IS NOT NULL";
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-				$allow_archived = true;
-
-				if (!$override_order) $override_order = "last_read DESC";
-
-/*			} else if ($feed == -7) { // shared
-				$query_strategy_part = "uuid != ''";
-				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
-				$allow_archived = true; */
-			} else if ($feed == -3) { // fresh virtual feed
-				$query_strategy_part = "unread = true AND score >= 0";
-
-				$intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
-
-				if (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 == -4) { // 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
-				$label_id = feed_to_label_id($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";
-			}
-
-			$order_by = "score DESC, date_entered DESC, updated DESC";
-
-			if ($view_mode == "unread_first") {
-				$order_by = "unread DESC, $order_by";
-			}
-
-			if ($override_order) {
-				$order_by = $override_order;
-			}
-
-			if ($override_strategy) {
-				$query_strategy_part = $override_strategy;
-			}
-
-			if ($override_vfeed) {
-				$vfeed_query_part = $override_vfeed;
-			}
-
-			$feed_title = "";
-
-			if ($search) {
-				$feed_title = T_sprintf("Search results: %s", $search);
-			} else {
-				if ($cat_view) {
-					$feed_title = getCategoryTitle($feed);
-				} else {
-					if (is_numeric($feed) && $feed > 0) {
-						$result = db_query("SELECT title,site_url,last_error,last_updated
-							FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
-
-						$feed_title = db_fetch_result($result, 0, "title");
-						$feed_site_url = db_fetch_result($result, 0, "site_url");
-						$last_error = db_fetch_result($result, 0, "last_error");
-						$last_updated = db_fetch_result($result, 0, "last_updated");
-					} else {
-						$feed_title = getFeedTitle($feed);
-					}
-				}
-			}
-
-
-			$content_query_part = "content, ";
-
-
-			if (is_numeric($feed)) {
-
-				if ($feed >= 0) {
-					$feed_kind = "Feeds";
-				} else {
-					$feed_kind = "Labels";
-				}
-
-				if ($limit_query_part) {
-					$offset_query_part = "OFFSET $offset";
-				}
-
-				// proper override_order applied above
-				if ($vfeed_query_part && !$ignore_vfeed_group && get_pref('VFEED_GROUP_BY_FEED', $owner_uid)) {
-					if (!$override_order) {
-						$order_by = "ttrss_feeds.title, $order_by";
-					} else {
-						$order_by = "ttrss_feeds.title, $override_order";
-					}
-				}
-
-				if (!$allow_archived) {
-					$from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
-					$feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
-
-				} else {
-					$from_qpart = "ttrss_entries$ext_tables_part,ttrss_user_entries
-						LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
-				}
-
-				if ($vfeed_query_part)
-					$vfeed_query_part .= "favicon_avg_color,";
-
-				$query = "SELECT DISTINCT
-						date_entered,
-						guid,
-						ttrss_entries.id,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,orig_feed_id,
-						last_marked, last_published,
-						$vfeed_query_part
-						$content_query_part
-						author,score
-					FROM
-						$from_qpart
-					WHERE
-					$feed_check_qpart
-					ttrss_user_entries.ref_id = ttrss_entries.id AND
-					ttrss_user_entries.owner_uid = '$owner_uid' AND
-					$search_query_part
-					$filter_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;
-
-				$result = db_query($query);
-
-			} else {
-				// browsing by tag
-
-				$select_qpart = "SELECT DISTINCT " .
-								"date_entered," .
-								"guid," .
-								"note," .
-								"ttrss_entries.id as id," .
-								"title," .
-								"updated," .
-								"unread," .
-								"feed_id," .
-								"orig_feed_id," .
-								"marked," .
-								"num_comments, " .
-								"comments, " .
-								"tag_cache," .
-								"label_cache," .
-								"link," .
-								"lang," .
-								"uuid," .
-								"last_read," .
-								"(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) AS hide_images," .
-								"last_marked, last_published, " .
-								$since_id_part .
-								$vfeed_query_part .
-								$content_query_part .
-								"score ";
-
-				$feed_kind = "Tags";
-				$all_tags = explode(",", $feed);
-				if ($search_mode == 'any') {
-					$tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
-					$from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
-					$where_qpart = " WHERE " .
-								   "ref_id = ttrss_entries.id AND " .
-								   "ttrss_user_entries.owner_uid = $owner_uid AND " .
-								   "post_int_id = int_id AND $tag_sql AND " .
-								   $view_query_part .
-								   $search_query_part .
-								   $query_strategy_part . " ORDER BY $order_by " .
-								   $limit_query_part;
-
-				} else {
-					$i = 1;
-					$sub_selects = array();
-					$sub_ands = array();
-					foreach ($all_tags as $term) {
-						array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
-						$i++;
-					}
-					if ($i > 2) {
-						$x = 1;
-						$y = 2;
-						do {
-							array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
-							$x++;
-							$y++;
-						} while ($y < $i);
-					}
-					array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
-					array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
-					$from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
-					$where_qpart = " WHERE " . implode(" AND ", $sub_ands);
-				}
-				//				error_log("TAG SQL: " . $tag_sql);
-				// $tag_sql = "tag_name = '$feed'";   DEFAULT way
-
-				//				error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
-				$result = db_query($select_qpart . $from_qpart . $where_qpart);
-			}
-
-			return array($result, $feed_title, $feed_site_url, $last_error, $last_updated, $search_words);
-
-	}
-
-	function sanitize($str, $force_remove_images = false, $owner = false, $site_url = false, $highlight_words = false, $article_id = false) {
-		if (!$owner) $owner = $_SESSION["uid"];
-
-		$res = trim($str); if (!$res) return '';
-
-		$charset_hack = '<head>
-			<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
-		</head>';
-
-		$res = trim($res); if (!$res) return '';
-
-		libxml_use_internal_errors(true);
-
-		$doc = new DOMDocument();
-		$doc->loadHTML($charset_hack . $res);
-		$xpath = new DOMXPath($doc);
-
-		$entries = $xpath->query('(//a[@href]|//img[@src])');
-
-		foreach ($entries as $entry) {
-
-			if ($site_url) {
-
-				if ($entry->hasAttribute('href')) {
-					$entry->setAttribute('href',
-						rewrite_relative_url($site_url, $entry->getAttribute('href')));
-
-					$entry->setAttribute('rel', 'noreferrer');
-				}
-
-				if ($entry->hasAttribute('src')) {
-					$src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
-
-					$cached_filename = CACHE_DIR . '/images/' . sha1($src) . '.png';
-
-					if (file_exists($cached_filename)) {
-						$src = SELF_URL_PATH . '/image.php?hash=' . sha1($src);
-					}
-
-					$entry->setAttribute('src', $src);
-				}
-
-				if ($entry->nodeName == 'img') {
-					if (($owner && get_pref("STRIP_IMAGES", $owner)) ||
-							$force_remove_images || $_SESSION["bw_limit"]) {
-
-						$p = $doc->createElement('p');
-
-						$a = $doc->createElement('a');
-						$a->setAttribute('href', $entry->getAttribute('src'));
-
-						$a->appendChild(new DOMText($entry->getAttribute('src')));
-						$a->setAttribute('target', '_blank');
-
-						$p->appendChild($a);
-
-						$entry->parentNode->replaceChild($p, $entry);
-					}
-				}
-			}
-
-			if (strtolower($entry->nodeName) == "a") {
-				$entry->setAttribute("target", "_blank");
-			}
-		}
-
-		$entries = $xpath->query('//iframe');
-		foreach ($entries as $entry) {
-			$entry->setAttribute('sandbox', 'allow-scripts');
-
-		}
-
-		$allowed_elements = array('a', 'address', 'audio', 'article', 'aside',
-			'b', 'bdi', 'bdo', 'big', 'blockquote', 'body', 'br',
-			'caption', 'cite', 'center', 'code', 'col', 'colgroup',
-			'data', 'dd', 'del', 'details', 'div', 'dl', 'font',
-			'dt', 'em', 'footer', 'figure', 'figcaption',
-			'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'html', 'i',
-			'img', 'ins', 'kbd', 'li', 'main', 'mark', 'nav', 'noscript',
-			'ol', 'p', 'pre', 'q', 'ruby', 'rp', 'rt', 's', 'samp', 'section',
-			'small', 'source', 'span', 'strike', 'strong', 'sub', 'summary',
-			'sup', 'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'time',
-			'tr', 'track', 'tt', 'u', 'ul', 'var', 'wbr', 'video' );
-
-		if ($_SESSION['hasSandbox']) $allowed_elements[] = 'iframe';
-
-		$disallowed_attributes = array('id', 'style', 'class');
-
-		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SANITIZE) as $plugin) {
-			$retval = $plugin->hook_sanitize($doc, $site_url, $allowed_elements, $disallowed_attributes, $article_id);
-			if (is_array($retval)) {
-				$doc = $retval[0];
-				$allowed_elements = $retval[1];
-				$disallowed_attributes = $retval[2];
-			} else {
-				$doc = $retval;
-			}
-		}
-
-		$doc->removeChild($doc->firstChild); //remove doctype
-		$doc = strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes);
-
-		if ($highlight_words) {
-			foreach ($highlight_words as $word) {
-
-				// http://stackoverflow.com/questions/4081372/highlight-keywords-in-a-paragraph
-
-				$elements = $xpath->query("//*/text()");
-
-				foreach ($elements as $child) {
-
-					$fragment = $doc->createDocumentFragment();
-					$text = $child->textContent;
-
-					while (($pos = mb_stripos($text, $word)) !== false) {
-						$fragment->appendChild(new DomText(mb_substr($text, 0, $pos)));
-						$word = mb_substr($text, $pos, mb_strlen($word));
-						$highlight = $doc->createElement('span');
-						$highlight->appendChild(new DomText($word));
-						$highlight->setAttribute('class', 'highlight');
-						$fragment->appendChild($highlight);
-						$text = mb_substr($text, $pos + mb_strlen($word));
-					}
-
-					if (!empty($text)) $fragment->appendChild(new DomText($text));
-
-					$child->parentNode->replaceChild($fragment, $child);
-				}
-			}
-		}
-
-		$res = $doc->saveHTML();
-
-		return $res;
-	}
-
-	function strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes) {
-		$xpath = new DOMXPath($doc);
-		$entries = $xpath->query('//*');
-
-		foreach ($entries as $entry) {
-			if (!in_array($entry->nodeName, $allowed_elements)) {
-				$entry->parentNode->removeChild($entry);
-			}
-
-			if ($entry->hasAttributes()) {
-				$attrs_to_remove = array();
-
-				foreach ($entry->attributes as $attr) {
-
-					if (strpos($attr->nodeName, 'on') === 0) {
-						array_push($attrs_to_remove, $attr);
-					}
-
-					if (in_array($attr->nodeName, $disallowed_attributes)) {
-						array_push($attrs_to_remove, $attr);
-					}
-				}
-
-				foreach ($attrs_to_remove as $attr) {
-					$entry->removeAttributeNode($attr);
-				}
-			}
-		}
-
-		return $doc;
-	}
-
-	function check_for_update() {
-		if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
-			$version_url = "http://tt-rss.org/version.php?ver=" . VERSION .
-				"&iid=" . sha1(SELF_URL_PATH);
-
-			$version_data = @fetch_file_contents($version_url);
-
-			if ($version_data) {
-				$version_data = json_decode($version_data, true);
-				if ($version_data && $version_data['version']) {
-					if (version_compare(VERSION_STATIC, $version_data['version']) == -1) {
-						return $version_data;
-					}
-				}
-			}
-		}
-		return false;
-	}
-
-	function catchupArticlesById($ids, $cmode, $owner_uid = false) {
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-		if (count($ids) == 0) return;
-
-		$tmp_ids = array();
-
-		foreach ($ids as $id) {
-			array_push($tmp_ids, "ref_id = '$id'");
-		}
-
-		$ids_qpart = join(" OR ", $tmp_ids);
-
-		if ($cmode == 0) {
-			db_query("UPDATE ttrss_user_entries SET
-			unread = false,last_read = NOW()
-			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
-		} else if ($cmode == 1) {
-			db_query("UPDATE ttrss_user_entries SET
-			unread = true
-			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
-		} else {
-			db_query("UPDATE ttrss_user_entries SET
-			unread = NOT unread,last_read = NOW()
-			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
-		}
-
-		/* update ccache */
-
-		$result = db_query("SELECT DISTINCT feed_id FROM ttrss_user_entries
-			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
-
-		while ($line = db_fetch_assoc($result)) {
-			ccache_update($line["feed_id"], $owner_uid);
-		}
-	}
-
-	function get_article_tags($id, $owner_uid = 0, $tag_cache = false) {
-
-		$a_id = db_escape_string($id);
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$query = "SELECT DISTINCT tag_name,
-			owner_uid as owner FROM
-			ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
-			ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
-
-		$tags = array();
-
-		/* check cache first */
-
-		if ($tag_cache === false) {
-			$result = db_query("SELECT tag_cache FROM ttrss_user_entries
-				WHERE ref_id = '$id' AND owner_uid = $owner_uid");
-
-			$tag_cache = db_fetch_result($result, 0, "tag_cache");
-		}
-
-		if ($tag_cache) {
-			$tags = explode(",", $tag_cache);
-		} else {
-
-			/* do it the hard way */
-
-			$tmp_result = db_query($query);
-
-			while ($tmp_line = db_fetch_assoc($tmp_result)) {
-				array_push($tags, $tmp_line["tag_name"]);
-			}
-
-			/* update the cache */
-
-			$tags_str = db_escape_string(join(",", $tags));
-
-			db_query("UPDATE ttrss_user_entries
-				SET tag_cache = '$tags_str' WHERE ref_id = '$id'
-				AND owner_uid = $owner_uid");
-		}
-
-		return $tags;
-	}
-
-	function trim_array($array) {
-		$tmp = $array;
-		array_walk($tmp, 'trim');
-		return $tmp;
-	}
-
-	function tag_is_valid($tag) {
-		if ($tag == '') return false;
-		if (preg_match("/^[0-9]*$/", $tag)) return false;
-		if (mb_strlen($tag) > 250) return false;
-
-		if (!$tag) return false;
-
-		return true;
-	}
-
-	function render_login_form() {
-		header('Cache-Control: public');
-
-		require_once "login_form.php";
-		exit;
-	}
-
-	function format_warning($msg, $id = "") {
-		return "<div class=\"warning\" id=\"$id\">
-			<span><img src=\"images/alert.png\"></span><span>$msg</span></div>";
-	}
-
-	function format_notice($msg, $id = "") {
-		return "<div class=\"notice\" id=\"$id\">
-			<span><img src=\"images/information.png\"></span><span>$msg</span></div>";
-	}
-
-	function format_error($msg, $id = "") {
-		return "<div class=\"error\" id=\"$id\">
-			<span><img src=\"images/alert.png\"></span><span>$msg</span></div>";
-	}
-
-	function print_notice($msg) {
-		return print format_notice($msg);
-	}
-
-	function print_warning($msg) {
-		return print format_warning($msg);
-	}
-
-	function print_error($msg) {
-		return print format_error($msg);
-	}
-
-
-	function T_sprintf() {
-		$args = func_get_args();
-		return vsprintf(__(array_shift($args)), $args);
-	}
-
-	function format_inline_player($url, $ctype) {
-
-		$entry = "";
-
-		$url = htmlspecialchars($url);
-
-		if (strpos($ctype, "audio/") === 0) {
-
-			if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
-				$_SESSION["hasMp3"])) {
-
-				$entry .= "<audio preload=\"none\" controls>
-					<source type=\"$ctype\" src=\"$url\"></source>
-					</audio>";
-
-			} else {
-
-				$entry .= "<object type=\"application/x-shockwave-flash\"
-					data=\"lib/button/musicplayer.swf?song_url=$url\"
-					width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
-					<param name=\"movie\"
-						value=\"lib/button/musicplayer.swf?song_url=$url\" />
-					</object>";
-			}
-
-			if ($entry) $entry .= "&nbsp; <a target=\"_blank\"
-				href=\"$url\">" . basename($url) . "</a>";
-
-			return $entry;
-
-		}
-
-		return "";
-
-/*		$filename = substr($url, strrpos($url, "/")+1);
-
-		$entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
-			$filename . " (" . $ctype . ")" . "</a>"; */
-
-	}
-
-	function format_article($id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$rv = array();
-
-		$rv['id'] = $id;
-
-		/* we can figure out feed_id from article id anyway, why do we
-		 * pass feed_id here? let's ignore the argument :(*/
-
-		$result = db_query("SELECT feed_id FROM ttrss_user_entries
-			WHERE ref_id = '$id'");
-
-		$feed_id = (int) db_fetch_result($result, 0, "feed_id");
-
-		$rv['feed_id'] = $feed_id;
-
-		//if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
-
-		if ($mark_as_read) {
-			$result = db_query("UPDATE ttrss_user_entries
-				SET unread = false,last_read = NOW()
-				WHERE ref_id = '$id' AND owner_uid = $owner_uid");
-
-			ccache_update($feed_id, $owner_uid);
-		}
-
-		$result = db_query("SELECT id,title,link,content,feed_id,comments,int_id,lang,
-			".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
-			(SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
-			(SELECT title FROM ttrss_feeds WHERE id = feed_id) as feed_title,
-			(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) as hide_images,
-			(SELECT always_display_enclosures FROM ttrss_feeds WHERE id = feed_id) as always_display_enclosures,
-			num_comments,
-			tag_cache,
-			author,
-			orig_feed_id,
-			note
-			FROM ttrss_entries,ttrss_user_entries
-			WHERE	id = '$id' AND ref_id = id AND owner_uid = $owner_uid");
-
-		if ($result) {
-
-			$line = db_fetch_assoc($result);
-
-			$line["tags"] = get_article_tags($id, $owner_uid, $line["tag_cache"]);
-			unset($line["tag_cache"]);
-
-			$line["content"] = sanitize($line["content"],
-				sql_bool_to_bool($line['hide_images']),
-				$owner_uid, $line["site_url"], false, $line["id"]);
-
-			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE) as $p) {
-				$line = $p->hook_render_article($line);
-			}
-
-			$num_comments = $line["num_comments"];
-			$entry_comments = "";
-
-			if ($num_comments > 0) {
-				if ($line["comments"]) {
-					$comments_url = htmlspecialchars($line["comments"]);
-				} else {
-					$comments_url = htmlspecialchars($line["link"]);
-				}
-				$entry_comments = "<a class=\"postComments\"
-					target='_blank' href=\"$comments_url\">$num_comments ".
-					_ngettext("comment", "comments", $num_comments)."</a>";
-
-			} else {
-				if ($line["comments"] && $line["link"] != $line["comments"]) {
-					$entry_comments = "<a class=\"postComments\" target='_blank' href=\"".htmlspecialchars($line["comments"])."\">".__("comments")."</a>";
-				}
-			}
-
-			if ($zoom_mode) {
-				header("Content-Type: text/html");
-				$rv['content'] .= "<html><head>
-						<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
-						<title>Tiny Tiny RSS - ".$line["title"]."</title>".
-						stylesheet_tag("css/tt-rss.css").
-						stylesheet_tag("css/zoom.css").
-						stylesheet_tag("css/dijit.css")."
-
-						<link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
-						<link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">
-
-						<script type=\"text/javascript\">
-						function openSelectedAttachment(elem) {
-							try {
-								var url = elem[elem.selectedIndex].value;
-
-								if (url) {
-									window.open(url);
-									elem.selectedIndex = 0;
-								}
-
-							} catch (e) {
-								exception_error(\"openSelectedAttachment\", e);
-							}
-						}
-					</script>
-					</head><body id=\"ttrssZoom\">";
-			}
-
-			$rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
-
-			$rv['content'] .= "<div class=\"postHeader\" id=\"POSTHDR-$id\">";
-
-			$entry_author = $line["author"];
-
-			if ($entry_author) {
-				$entry_author = __(" - ") . $entry_author;
-			}
-
-			$parsed_updated = make_local_datetime($line["updated"], true,
-				$owner_uid, true);
-
-			if (!$zoom_mode)
-				$rv['content'] .= "<div class=\"postDate\">$parsed_updated</div>";
-
-			if ($line["link"]) {
-				$rv['content'] .= "<div class='postTitle'><a target='_blank'
-					title=\"".htmlspecialchars($line['title'])."\"
-					href=\"" .
-					htmlspecialchars($line["link"]) . "\">" .
-					$line["title"] . "</a>" .
-					"<span class='author'>$entry_author</span></div>";
-			} else {
-				$rv['content'] .= "<div class='postTitle'>" . $line["title"] . "$entry_author</div>";
-			}
-
-			if ($zoom_mode) {
-				$feed_title = "<a href=\"".htmlspecialchars($line["site_url"]).
-					"\" target=\"_blank\">".
-					htmlspecialchars($line["feed_title"])."</a>";
-
-				$rv['content'] .= "<div class=\"postFeedTitle\">$feed_title</div>";
-
-				$rv['content'] .= "<div class=\"postDate\">$parsed_updated</div>";
-			}
-
-			$tags_str = format_tags_string($line["tags"], $id);
-			$tags_str_full = join(", ", $line["tags"]);
-
-			if (!$tags_str_full) $tags_str_full = __("no tags");
-
-			if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
-
-			$rv['content'] .= "<div class='postTags' style='float : right'>
-				<img src='images/tag.png'
-				class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
-
-			if (!$zoom_mode) {
-				$rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
-					<a title=\"".__('Edit tags for this article')."\"
-					href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
-
-				$rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
-					id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
-					position=\"below\">$tags_str_full</div>";
-
-				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_BUTTON) as $p) {
-					$rv['content'] .= $p->hook_article_button($line);
-				}
-
-			} else {
-				$tags_str = strip_tags($tags_str);
-				$rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
-			}
-			$rv['content'] .= "</div>";
-			$rv['content'] .= "<div clear='both'>";
-
-			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_LEFT_BUTTON) as $p) {
-				$rv['content'] .= $p->hook_article_left_button($line);
-			}
-
-			$rv['content'] .= "$entry_comments</div>";
-
-			if ($line["orig_feed_id"]) {
-
-				$tmp_result = db_query("SELECT * FROM ttrss_archived_feeds
-					WHERE id = ".$line["orig_feed_id"]);
-
-				if (db_num_rows($tmp_result) != 0) {
-
-					$rv['content'] .= "<div clear='both'>";
-					$rv['content'] .= __("Originally from:");
-
-					$rv['content'] .= "&nbsp;";
-
-					$tmp_line = db_fetch_assoc($tmp_result);
-
-					$rv['content'] .= "<a target='_blank'
-						href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
-						$tmp_line['title'] . "</a>";
-
-					$rv['content'] .= "&nbsp;";
-
-					$rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
-					$rv['content'] .= "<img title='".__('Feed URL')."' class='tinyFeedIcon' src='images/pub_set.png'></a>";
-
-					$rv['content'] .= "</div>";
-				}
-			}
-
-			$rv['content'] .= "</div>";
-
-			$rv['content'] .= "<div id=\"POSTNOTE-$id\">";
-				if ($line['note']) {
-					$rv['content'] .= format_article_note($id, $line['note'], !$zoom_mode);
-				}
-			$rv['content'] .= "</div>";
-
-			if (!$line['lang']) $line['lang'] = 'en';
-
-			$rv['content'] .= "<div class=\"postContent\" lang=\"".$line['lang']."\">";
-
-			$rv['content'] .= $line["content"];
-			$rv['content'] .= format_article_enclosures($id,
-				sql_bool_to_bool($line["always_display_enclosures"]),
-				$line["content"],
-				sql_bool_to_bool($line["hide_images"]));
-
-			$rv['content'] .= "</div>";
-
-			$rv['content'] .= "</div>";
-
-		}
-
-		if ($zoom_mode) {
-			$rv['content'] .= "
-				<div class='footer'>
-				<button onclick=\"return window.close()\">".
-					__("Close this window")."</button></div>";
-			$rv['content'] .= "</body></html>";
-		}
-
-		return $rv;
-
-	}
-
-	function print_checkpoint($n, $s) {
-		$ts = microtime(true);
-		echo sprintf("<!-- CP[$n] %.4f seconds -->\n", $ts - $s);
-		return $ts;
-	}
-
-	function sanitize_tag($tag) {
-		$tag = trim($tag);
-
-		$tag = mb_strtolower($tag, 'utf-8');
-
-		$tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
-
-//		$tag = str_replace('"', "", $tag);
-//		$tag = str_replace("+", " ", $tag);
-		$tag = str_replace("technorati tag: ", "", $tag);
-
-		return $tag;
-	}
-
-	function get_self_url_prefix() {
-		if (strrpos(SELF_URL_PATH, "/") === strlen(SELF_URL_PATH)-1) {
-			return substr(SELF_URL_PATH, 0, strlen(SELF_URL_PATH)-1);
-		} else {
-			return SELF_URL_PATH;
-		}
-	}
-
-	/**
-	 * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
-	 *
-	 * @return string The Mozilla Firefox feed adding URL.
-	 */
-	function add_feed_url() {
-		//$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
-
-		$url_path = get_self_url_prefix() .
-			"/public.php?op=subscribe&feed_url=%s";
-		return $url_path;
-	} // function add_feed_url
-
-	function encrypt_password($pass, $salt = '', $mode2 = false) {
-		if ($salt && $mode2) {
-			return "MODE2:" . hash('sha256', $salt . $pass);
-		} else if ($salt) {
-			return "SHA1X:" . sha1("$salt:$pass");
-		} else {
-			return "SHA1:" . sha1($pass);
-		}
-	} // function encrypt_password
-
-	function load_filters($feed_id, $owner_uid, $action_id = false) {
-		$filters = array();
-
-		$cat_id = (int)getFeedCategory($feed_id);
-
-		if ($cat_id == 0)
-			$null_cat_qpart = "cat_id IS NULL OR";
-		else
-			$null_cat_qpart = "";
-
-		$result = db_query("SELECT * FROM ttrss_filters2 WHERE
-			owner_uid = $owner_uid AND enabled = true ORDER BY order_id, title");
-
-		$check_cats = join(",", array_merge(
-			getParentCategories($cat_id, $owner_uid),
-			array($cat_id)));
-
-		while ($line = db_fetch_assoc($result)) {
-			$filter_id = $line["id"];
-
-			$result2 = db_query("SELECT
-				r.reg_exp, r.inverse, r.feed_id, r.cat_id, r.cat_filter, t.name AS type_name
-				FROM ttrss_filters2_rules AS r,
-				ttrss_filter_types AS t
-				WHERE
-					($null_cat_qpart (cat_id IS NULL AND cat_filter = false) OR cat_id IN ($check_cats)) AND
-					(feed_id IS NULL OR feed_id = '$feed_id') AND
-					filter_type = t.id AND filter_id = '$filter_id'");
-
-			$rules = array();
-			$actions = array();
-
-			while ($rule_line = db_fetch_assoc($result2)) {
-#				print_r($rule_line);
-
-				$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);
-			}
-
-			$result2 = db_query("SELECT a.action_param,t.name AS type_name
-				FROM ttrss_filters2_actions AS a,
-				ttrss_filter_actions AS t
-				WHERE
-					action_id = t.id AND filter_id = '$filter_id'");
-
-			while ($action_line = db_fetch_assoc($result2)) {
-#				print_r($action_line);
-
-				$action = array();
-				$action["type"] = $action_line["type_name"];
-				$action["param"] = $action_line["action_param"];
-
-				array_push($actions, $action);
-			}
-
-
-			$filter = array();
-			$filter["match_any_rule"] = sql_bool_to_bool($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 $filters;
-	}
-
-	function get_score_pic($score) {
-		if ($score > 100) {
-			return "score_high.png";
-		} else if ($score > 0) {
-			return "score_half_high.png";
-		} else if ($score < -100) {
-			return "score_low.png";
-		} else if ($score < 0) {
-			return "score_half_low.png";
-		} else {
-			return "score_neutral.png";
-		}
-	}
-
-	function feed_has_icon($id) {
-		return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
-	}
-
-	function init_plugins() {
-		PluginHost::getInstance()->load(PLUGINS, PluginHost::KIND_ALL);
-
-		return true;
-	}
-
-	function format_tags_string($tags, $id) {
-		if (!is_array($tags) || count($tags) == 0) {
-			return __("no tags");
-		} else {
-			$maxtags = min(5, count($tags));
-
-			for ($i = 0; $i < $maxtags; $i++) {
-				$tags_str .= "<a class=\"tag\" href=\"#\" onclick=\"viewfeed('".$tags[$i]."')\">" . $tags[$i] . "</a>, ";
-			}
-
-			$tags_str = mb_substr($tags_str, 0, mb_strlen($tags_str)-2);
-
-			if (count($tags) > $maxtags)
-				$tags_str .= ", &hellip;";
-
-			return $tags_str;
-		}
-	}
-
-	function format_article_labels($labels, $id) {
-
-		if (!is_array($labels)) return '';
-
-		$labels_str = "";
-
-		foreach ($labels as $l) {
-			$labels_str .= sprintf("<span class='hlLabelRef'
-				style='color : %s; background-color : %s'>%s</span>",
-					$l[2], $l[3], $l[1]);
-			}
-
-		return $labels_str;
-
-	}
-
-	function format_article_note($id, $note, $allow_edit = true) {
-
-		$str = "<div class='articleNote'	onclick=\"editArticleNote($id)\">
-			<div class='noteEdit' onclick=\"editArticleNote($id)\">".
-			($allow_edit ? __('(edit note)') : "")."</div>$note</div>";
-
-		return $str;
-	}
-
-
-	function get_feed_category($feed_cat, $parent_cat_id = false) {
-		if ($parent_cat_id) {
-			$parent_qpart = "parent_cat = '$parent_cat_id'";
-			$parent_insert = "'$parent_cat_id'";
-		} else {
-			$parent_qpart = "parent_cat IS NULL";
-			$parent_insert = "NULL";
-		}
-
-		$result = db_query(
-			"SELECT id FROM ttrss_feed_categories
-			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
-
-		if (db_num_rows($result) == 0) {
-			return false;
-		} else {
-			return db_fetch_result($result, 0, "id");
-		}
-	}
-
-	function add_feed_category($feed_cat, $parent_cat_id = false) {
-
-		if (!$feed_cat) return false;
-
-		db_query("BEGIN");
-
-		if ($parent_cat_id) {
-			$parent_qpart = "parent_cat = '$parent_cat_id'";
-			$parent_insert = "'$parent_cat_id'";
-		} else {
-			$parent_qpart = "parent_cat IS NULL";
-			$parent_insert = "NULL";
-		}
-
-		$feed_cat = mb_substr($feed_cat, 0, 250);
-
-		$result = db_query(
-			"SELECT id FROM ttrss_feed_categories
-			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
-
-		if (db_num_rows($result) == 0) {
-
-			$result = db_query(
-				"INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
-				VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
-
-			db_query("COMMIT");
-
-			return true;
-		}
-
-		return false;
-	}
-
-	function getArticleFeed($id) {
-		$result = db_query("SELECT feed_id FROM ttrss_user_entries
-			WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
-
-		if (db_num_rows($result) != 0) {
-			return db_fetch_result($result, 0, "feed_id");
-		} else {
-			return 0;
-		}
-	}
-
-	/**
-	 * Fixes incomplete URLs by prepending "http://".
-	 * Also replaces feed:// with http://, and
-	 * prepends a trailing slash if the url is a domain name only.
-	 *
-	 * @param string $url Possibly incomplete URL
-	 *
-	 * @return string Fixed URL.
-	 */
-	function fix_url($url) {
-		if (strpos($url, '://') === false) {
-			$url = 'http://' . $url;
-		} else if (substr($url, 0, 5) == 'feed:') {
-			$url = 'http:' . substr($url, 5);
-		}
-
-		//prepend slash if the URL has no slash in it
-		// "http://www.example" -> "http://www.example/"
-		if (strpos($url, '/', strpos($url, ':') + 3) === false) {
-			$url .= '/';
-		}
-
-		if ($url != "http:///")
-			return $url;
-		else
-			return '';
-	}
-
-	function validate_feed_url($url) {
-		$parts = parse_url($url);
-
-		return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
-
-	}
-
-	function get_article_enclosures($id) {
-
-		$query = "SELECT * FROM ttrss_enclosures
-			WHERE post_id = '$id' AND content_url != ''";
-
-		$rv = array();
-
-		$result = db_query($query);
-
-		if (db_num_rows($result) > 0) {
-			while ($line = db_fetch_assoc($result)) {
-				array_push($rv, $line);
-			}
-		}
-
-		return $rv;
-	}
-
-	function save_email_address($email) {
-		// FIXME: implement persistent storage of emails
-
-		if (!$_SESSION['stored_emails'])
-			$_SESSION['stored_emails'] = array();
-
-		if (!in_array($email, $_SESSION['stored_emails']))
-			array_push($_SESSION['stored_emails'], $email);
-	}
-
-
-	function get_feed_access_key($feed_id, $is_cat, $owner_uid = false) {
-
-		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
-
-		$sql_is_cat = bool_to_sql_bool($is_cat);
-
-		$result = db_query("SELECT access_key FROM ttrss_access_keys
-			WHERE feed_id = '$feed_id'	AND is_cat = $sql_is_cat
-			AND owner_uid = " . $owner_uid);
-
-		if (db_num_rows($result) == 1) {
-			return db_fetch_result($result, 0, "access_key");
-		} else {
-			$key = db_escape_string(uniqid(base_convert(rand(), 10, 36)));
-
-			$result = db_query("INSERT INTO ttrss_access_keys
-				(access_key, feed_id, is_cat, owner_uid)
-				VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
-
-			return $key;
-		}
-		return false;
-	}
-
-	function get_feeds_from_html($url, $content)
-	{
-		$url     = fix_url($url);
-		$baseUrl = substr($url, 0, strrpos($url, '/') + 1);
-
-		libxml_use_internal_errors(true);
-
-		$doc = new DOMDocument();
-		$doc->loadHTML($content);
-		$xpath = new DOMXPath($doc);
-		$entries = $xpath->query('/html/head/link[@rel="alternate"]');
-		$feedUrls = array();
-		foreach ($entries as $entry) {
-			if ($entry->hasAttribute('href')) {
-				$title = $entry->getAttribute('title');
-				if ($title == '') {
-					$title = $entry->getAttribute('type');
-				}
-				$feedUrl = rewrite_relative_url(
-					$baseUrl, $entry->getAttribute('href')
-				);
-				$feedUrls[$feedUrl] = $title;
-			}
-		}
-		return $feedUrls;
-	}
-
-	function is_html($content) {
-		return preg_match("/<html|DOCTYPE html/i", substr($content, 0, 20)) !== 0;
-	}
-
-	function url_is_html($url, $login = false, $pass = false) {
-		return is_html(fetch_file_contents($url, false, $login, $pass));
-	}
-
-	function print_label_select($name, $value, $attributes = "") {
-
-		$result = db_query("SELECT caption FROM ttrss_labels2
-			WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
-
-		print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
-			"\" $attributes onchange=\"labelSelectOnChange(this)\" >";
-
-		while ($line = db_fetch_assoc($result)) {
-
-			$issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
-
-			print "<option value=\"".htmlspecialchars($line["caption"])."\"
-				$issel>" . htmlspecialchars($line["caption"]) . "</option>";
-
-		}
-
-#		print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
-
-		print "</select>";
-
-
-	}
-
-	function format_article_enclosures($id, $always_display_enclosures,
-					$article_content, $hide_images = false) {
-
-		$result = get_article_enclosures($id);
-		$rv = '';
-
-		if (count($result) > 0) {
-
-			$entries_html = array();
-			$entries = array();
-			$entries_inline = array();
-
-			foreach ($result as $line) {
-
-				$url = $line["content_url"];
-				$ctype = $line["content_type"];
-				$title = $line["title"];
-
-				if (!$ctype) $ctype = __("unknown type");
-
-				$filename = substr($url, strrpos($url, "/")+1);
-
-				$player = format_inline_player($url, $ctype);
-
-				if ($player) array_push($entries_inline, $player);
-
-#				$entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
-#					$filename . " (" . $ctype . ")" . "</a>";
-
-				$entry = "<div onclick=\"window.open('".htmlspecialchars($url)."')\"
-					dojoType=\"dijit.MenuItem\">$filename ($ctype)</div>";
-
-				array_push($entries_html, $entry);
-
-				$entry = array();
-
-				$entry["type"] = $ctype;
-				$entry["filename"] = $filename;
-				$entry["url"] = $url;
-				$entry["title"] = $title;
-
-				array_push($entries, $entry);
-			}
-
-			if ($_SESSION['uid'] && !get_pref("STRIP_IMAGES") && !$_SESSION["bw_limit"]) {
-				if ($always_display_enclosures ||
-							!preg_match("/<img/i", $article_content)) {
-
-					foreach ($entries as $entry) {
-
-						if (preg_match("/image/", $entry["type"]) ||
-								preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
-
-								if (!$hide_images) {
-									$rv .= "<p><img
-									alt=\"".htmlspecialchars($entry["filename"])."\"
-									src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
-								} else {
-									$rv .= "<p><a target=\"_blank\"
-									href=\"".htmlspecialchars($entry["url"])."\"
-									>" .htmlspecialchars($entry["url"]) . "</a></p>";
-								}
-
-								if ($entry['title']) {
-									$rv.= "<div class=\"enclosure_title\">${entry['title']}</div>";
-								}
-						}
-					}
-				}
-			}
-
-			if (count($entries_inline) > 0) {
-				$rv .= "<hr clear='both'/>";
-				foreach ($entries_inline as $entry) { $rv .= $entry; };
-				$rv .= "<hr clear='both'/>";
-			}
-
-			$rv .= "<select class=\"attachments\" onchange=\"openSelectedAttachment(this)\">".
-				"<option value=''>" . __('Attachments')."</option>";
-
-			foreach ($entries as $entry) {
-				if ($entry["title"])
-					$title = "&mdash; " . truncate_string($entry["title"], 30);
-				else
-					$title = "";
-
-				$rv .= "<option value=\"".htmlspecialchars($entry["url"])."\">" . htmlspecialchars($entry["filename"]) . "$title</option>";
-
-			};
-
-			$rv .= "</select>";
-		}
-
-		return $rv;
-	}
-
-	function getLastArticleId() {
-		$result = db_query("SELECT MAX(ref_id) AS id FROM ttrss_user_entries
-			WHERE owner_uid = " . $_SESSION["uid"]);
-
-		if (db_num_rows($result) == 1) {
-			return db_fetch_result($result, 0, "id");
-		} else {
-			return -1;
-		}
-	}
-
-	function build_url($parts) {
-		return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
-	}
-
-	/**
-	 * Converts a (possibly) relative URL to a absolute one.
-	 *
-	 * @param string $url     Base URL (i.e. from where the document is)
-	 * @param string $rel_url Possibly relative URL in the document
-	 *
-	 * @return string Absolute URL
-	 */
-	function rewrite_relative_url($url, $rel_url) {
-		if (strpos($rel_url, ":") !== false) {
-			return $rel_url;
-		} else if (strpos($rel_url, "://") !== false) {
-			return $rel_url;
-		} else if (strpos($rel_url, "//") === 0) {
-			# protocol-relative URL (rare but they exist)
-			return $rel_url;
-		} else if (strpos($rel_url, "/") === 0)
-		{
-			$parts = parse_url($url);
-			$parts['path'] = $rel_url;
-
-			return build_url($parts);
-
-		} else {
-			$parts = parse_url($url);
-			if (!isset($parts['path'])) {
-				$parts['path'] = '/';
-			}
-			$dir = $parts['path'];
-			if (substr($dir, -1) !== '/') {
-				$dir = dirname($parts['path']);
-				$dir !== '/' && $dir .= '/';
-			}
-			$parts['path'] = $dir . $rel_url;
-
-			return build_url($parts);
-		}
-	}
-
-	function sphinx_search($query, $offset = 0, $limit = 30) {
-		require_once 'lib/sphinxapi.php';
-
-		$sphinxClient = new SphinxClient();
-
-		$sphinxpair = explode(":", SPHINX_SERVER, 2);
-
-		$sphinxClient->SetServer($sphinxpair[0], (int)$sphinxpair[1]);
-		$sphinxClient->SetConnectTimeout(1);
-
-		$sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
-			'feed_title' => 20));
-
-		$sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
-		$sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
-		$sphinxClient->SetLimits($offset, $limit, 1000);
-		$sphinxClient->SetArrayResult(false);
-		$sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
-
-		$result = $sphinxClient->Query($query, SPHINX_INDEX);
-
-		$ids = array();
-
-		if (is_array($result['matches'])) {
-			foreach (array_keys($result['matches']) as $int_id) {
-				$ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
-				array_push($ids, $ref_id);
-			}
-		}
-
-		return $ids;
-	}
-
-	function cleanup_tags($days = 14, $limit = 1000) {
-
-		if (DB_TYPE == "pgsql") {
-			$interval_query = "date_updated < NOW() - INTERVAL '$days days'";
-		} else if (DB_TYPE == "mysql") {
-			$interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
-		}
-
-		$tags_deleted = 0;
-
-		while ($limit > 0) {
-			$limit_part = 500;
-
-			$query = "SELECT ttrss_tags.id AS id
-				FROM ttrss_tags, ttrss_user_entries, ttrss_entries
-				WHERE post_int_id = int_id AND $interval_query AND
-				ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
-
-			$result = db_query($query);
-
-			$ids = array();
-
-			while ($line = db_fetch_assoc($result)) {
-				array_push($ids, $line['id']);
-			}
-
-			if (count($ids) > 0) {
-				$ids = join(",", $ids);
-
-				$tmp_result = db_query("DELETE FROM ttrss_tags WHERE id IN ($ids)");
-				$tags_deleted += db_affected_rows($tmp_result);
-			} else {
-				break;
-			}
-
-			$limit -= $limit_part;
-		}
-
-		return $tags_deleted;
-	}
-
-	function print_user_stylesheet() {
-		$value = get_pref('USER_STYLESHEET');
-
-		if ($value) {
-			print "<style type=\"text/css\">";
-			print str_replace("<br/>", "\n", $value);
-			print "</style>";
-		}
-
-	}
-
-	function filter_to_sql($filter, $owner_uid) {
-		$query = array();
-
-		if (DB_TYPE == "pgsql")
-			$reg_qpart = "~";
-		else
-			$reg_qpart = "REGEXP";
-
-		foreach ($filter["rules"] AS $rule) {
-			$rule['reg_exp'] = str_replace('/', '\/', $rule["reg_exp"]);
-			$regexp_valid = preg_match('/' . $rule['reg_exp'] . '/',
-				$rule['reg_exp']) !== FALSE;
-
-			if ($regexp_valid) {
-
-				$rule['reg_exp'] = db_escape_string($rule['reg_exp']);
-
-					switch ($rule["type"]) {
-					case "title":
-						$qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
-							$rule['reg_exp'] . "')";
-						break;
-					case "content":
-						$qpart = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
-							$rule['reg_exp'] . "')";
-						break;
-					case "both":
-						$qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
-							$rule['reg_exp'] . "') OR LOWER(" .
-							"ttrss_entries.content) $reg_qpart LOWER('" . $rule['reg_exp'] . "')";
-						break;
-					case "tag":
-						$qpart = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
-							$rule['reg_exp'] . "')";
-						break;
-					case "link":
-						$qpart = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
-							$rule['reg_exp'] . "')";
-						break;
-					case "author":
-						$qpart = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
-							$rule['reg_exp'] . "')";
-						break;
-				}
-
-				if (isset($rule['inverse'])) $qpart = "NOT ($qpart)";
-
-				if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) {
-					$qpart .= " AND feed_id = " . db_escape_string($rule["feed_id"]);
-				}
-
-				if (isset($rule["cat_id"])) {
-
-					if ($rule["cat_id"] > 0) {
-						$children = getChildCategories($rule["cat_id"], $owner_uid);
-						array_push($children, $rule["cat_id"]);
-
-						$children = join(",", $children);
-
-						$cat_qpart = "cat_id IN ($children)";
-					} else {
-						$cat_qpart = "cat_id IS NULL";
-					}
-
-					$qpart .= " AND $cat_qpart";
-				}
-
-				$qpart .= " AND feed_id IS NOT NULL";
-
-				array_push($query, "($qpart)");
-
-			}
-		}
-
-		if (count($query) > 0) {
-			$fullquery = "(" . join($filter["match_any_rule"] ? "OR" : "AND", $query) . ")";
-		} else {
-			$fullquery = "(false)";
-		}
-
-		if ($filter['inverse']) $fullquery = "(NOT $fullquery)";
-
-		return $fullquery;
-	}
-
-	if (!function_exists('gzdecode')) {
-		function gzdecode($string) { // no support for 2nd argument
-			return file_get_contents('compress.zlib://data:who/cares;base64,'.
-				base64_encode($string));
-		}
-	}
-
-	function get_random_bytes($length) {
-		if (function_exists('openssl_random_pseudo_bytes')) {
-			return openssl_random_pseudo_bytes($length);
-		} else {
-			$output = "";
-
-			for ($i = 0; $i < $length; $i++)
-				$output .= chr(mt_rand(0, 255));
-
-			return $output;
-		}
-	}
-
-	function read_stdin() {
-		$fp = fopen("php://stdin", "r");
-
-		if ($fp) {
-			$line = trim(fgets($fp));
-			fclose($fp);
-			return $line;
-		}
-
-		return null;
-	}
-
-	function tmpdirname($path, $prefix) {
-		// Use PHP's tmpfile function to create a temporary
-		// directory name. Delete the file and keep the name.
-		$tempname = tempnam($path,$prefix);
-		if (!$tempname)
-			return false;
-
-		if (!unlink($tempname))
-			return false;
-
-       return $tempname;
-	}
-
-	function getFeedCategory($feed) {
-		$result = db_query("SELECT cat_id FROM ttrss_feeds
-			WHERE id = '$feed'");
-
-		if (db_num_rows($result) > 0) {
-			return db_fetch_result($result, 0, "cat_id");
-		} else {
-			return false;
-		}
-
-	}
-
-	function implements_interface($class, $interface) {
-		return in_array($interface, class_implements($class));
-	}
-
-	function geturl($url, $depth = 0){
-
-		if ($depth == 20) return $url;
-
-		if (!function_exists('curl_init'))
-			return user_error('CURL Must be installed for geturl function to work. Ask your host to enable it or uncomment extension=php_curl.dll in php.ini', E_USER_ERROR);
-
-		$curl = curl_init();
-		$header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
-		$header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
-		$header[] = "Cache-Control: max-age=0";
-		$header[] = "Connection: keep-alive";
-		$header[] = "Keep-Alive: 300";
-		$header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
-		$header[] = "Accept-Language: en-us,en;q=0.5";
-		$header[] = "Pragma: ";
-
-		curl_setopt($curl, CURLOPT_URL, $url);
-		curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0 Firefox/5.0');
-		curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
-		curl_setopt($curl, CURLOPT_HEADER, true);
-		curl_setopt($curl, CURLOPT_REFERER, $url);
-		curl_setopt($curl, CURLOPT_ENCODING, 'gzip,deflate');
-		curl_setopt($curl, CURLOPT_AUTOREFERER, true);
-		curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
-		//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); //CURLOPT_FOLLOWLOCATION Disabled...
-		curl_setopt($curl, CURLOPT_TIMEOUT, 60);
-		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
-
-		if (defined('_CURL_HTTP_PROXY')) {
-			curl_setopt($curl, CURLOPT_PROXY, _CURL_HTTP_PROXY);
-		}
-
-		if ((OPENSSL_VERSION_NUMBER >= 0x0090808f) && (OPENSSL_VERSION_NUMBER < 0x10000000)) {
-			curl_setopt($curl, CURLOPT_SSLVERSION, 3);
-		}
-
-		$html = curl_exec($curl);
-
-		$status = curl_getinfo($curl);
-
-		if($status['http_code']!=200){
-			if($status['http_code'] == 301 || $status['http_code'] == 302) {
-				curl_close($curl);
-				list($header) = explode("\r\n\r\n", $html, 2);
-				$matches = array();
-				preg_match("/(Location:|URI:)[^(\n)]*/", $header, $matches);
-				$url = trim(str_replace($matches[1],"",$matches[0]));
-				$url_parsed = parse_url($url);
-				return (isset($url_parsed))? geturl($url, $depth + 1):'';
-			}
-
-			global $fetch_last_error;
-
-			$fetch_last_error = curl_errno($curl) . " " . curl_error($curl);
-			curl_close($curl);
-
-#			$oline='';
-#			foreach($status as $key=>$eline){$oline.='['.$key.']'.$eline.' ';}
-#			$line =$oline." \r\n ".$url."\r\n-----------------\r\n";
-#			$handle = @fopen('./curl.error.log', 'a');
-#			fwrite($handle, $line);
-			return FALSE;
-		}
-		curl_close($curl);
-		return $url;
-	}
-
-	function get_minified_js($files) {
-		require_once 'lib/jshrink/Minifier.php';
-
-		$rv = '';
-
-		foreach ($files as $js) {
-			if (!isset($_GET['debug'])) {
-				$cached_file = CACHE_DIR . "/js/".basename($js).".js";
-
-				if (file_exists($cached_file) &&
-						is_readable($cached_file) &&
-						filemtime($cached_file) >= filemtime("js/$js.js")) {
-
-					$rv .= file_get_contents($cached_file);
-
-				} else {
-					$minified = JShrink\Minifier::minify(file_get_contents("js/$js.js"));
-					file_put_contents($cached_file, $minified);
-					$rv .= $minified;
-				}
-			} else {
-				$rv .= file_get_contents("js/$js.js");
-			}
-		}
-
-		return $rv;
-	}
-
-	function stylesheet_tag($filename) {
-		$timestamp = filemtime($filename);
-
-		return "<link rel=\"stylesheet\" type=\"text/css\" href=\"$filename?$timestamp\"/>\n";
-	}
-
-	function javascript_tag($filename) {
-		$query = "";
-
-		if (!(strpos($filename, "?") === FALSE)) {
-			$query = substr($filename, strpos($filename, "?")+1);
-			$filename = substr($filename, 0, strpos($filename, "?"));
-		}
-
-		$timestamp = filemtime($filename);
-
-		if ($query) $timestamp .= "&$query";
-
-		return "<script type=\"text/javascript\" charset=\"utf-8\" src=\"$filename?$timestamp\"></script>\n";
-	}
-
-	function calculate_dep_timestamp() {
-		$files = array_merge(glob("js/*.js"), glob("css/*.css"));
-
-		$max_ts = -1;
-
-		foreach ($files as $file) {
-			if (filemtime($file) > $max_ts) $max_ts = filemtime($file);
-		}
-
-		return $max_ts;
-	}
-
-	function T_js_decl($s1, $s2) {
-		if ($s1 && $s2) {
-			$s1 = preg_replace("/\n/", "", $s1);
-			$s2 = preg_replace("/\n/", "", $s2);
-
-			$s1 = preg_replace("/\"/", "\\\"", $s1);
-			$s2 = preg_replace("/\"/", "\\\"", $s2);
-
-			return "T_messages[\"$s1\"] = \"$s2\";\n";
-		}
-	}
-
-	function init_js_translations() {
-
-	print 'var T_messages = new Object();
-
-		function __(msg) {
-			if (T_messages[msg]) {
-				return T_messages[msg];
-			} else {
-				return msg;
-			}
-		}
-
-		function ngettext(msg1, msg2, n) {
-			return __((parseInt(n) > 1) ? msg2 : msg1);
-		}';
-
-		$l10n = _get_reader();
-
-		for ($i = 0; $i < $l10n->total; $i++) {
-			$orig = $l10n->get_original_string($i);
-			if(strpos($orig, "\000") !== FALSE) { // Plural forms
-				$key = explode(chr(0), $orig);
-				print T_js_decl($key[0], _ngettext($key[0], $key[1], 1)); // Singular
-				print T_js_decl($key[1], _ngettext($key[0], $key[1], 2)); // Plural
-			} else {
-				$translation = __($orig);
-				print T_js_decl($orig, $translation);
-			}
-		}
-	}
-
-	function label_to_feed_id($label) {
-		return LABEL_BASE_INDEX - 1 - abs($label);
-	}
-
-	function feed_to_label_id($feed) {
-		return LABEL_BASE_INDEX - 1 + abs($feed);
-	}
-
-	function format_libxml_error($error) {
-		return T_sprintf("LibXML error %s at line %d (column %d): %s",
-				$error->code, $error->line, $error->column,
-				$error->message);
-	}
+	// TODO: less dumb splitting
+	require_once "functions2.php";
 
 ?>
diff --git a/include/functions2.php b/include/functions2.php
new file mode 100644
index 00000000..4e979614
--- /dev/null
+++ b/include/functions2.php
@@ -0,0 +1,2397 @@
+<?php
+	function make_init_params() {
+		$params = array();
+
+		foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
+			"ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
+			"CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE",
+			"HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
+
+				 $params[strtolower($param)] = (int) get_pref($param);
+		 }
+
+		$params["icons_url"] = ICONS_URL;
+		$params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
+		$params["default_view_mode"] = get_pref("_DEFAULT_VIEW_MODE");
+		$params["default_view_limit"] = (int) get_pref("_DEFAULT_VIEW_LIMIT");
+		$params["default_view_order_by"] = get_pref("_DEFAULT_VIEW_ORDER_BY");
+		$params["bw_limit"] = (int) $_SESSION["bw_limit"];
+		$params["label_base_index"] = (int) LABEL_BASE_INDEX;
+
+		$result = db_query("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
+			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
+
+		$max_feed_id = db_fetch_result($result, 0, "mid");
+		$num_feeds = db_fetch_result($result, 0, "nf");
+
+		$params["max_feed_id"] = (int) $max_feed_id;
+		$params["num_feeds"] = (int) $num_feeds;
+
+		$params["hotkeys"] = get_hotkeys_map();
+
+		$params["csrf_token"] = $_SESSION["csrf_token"];
+		$params["widescreen"] = (int) $_COOKIE["ttrss_widescreen"];
+
+		$params['simple_update'] = defined('SIMPLE_UPDATE_MODE') && SIMPLE_UPDATE_MODE;
+
+		return $params;
+	}
+
+	function get_hotkeys_info() {
+		$hotkeys = array(
+			__("Navigation") => array(
+				"next_feed" => __("Open next feed"),
+				"prev_feed" => __("Open previous feed"),
+				"next_article" => __("Open next article"),
+				"prev_article" => __("Open previous article"),
+				"next_article_noscroll" => __("Open next article (don't scroll long articles)"),
+				"prev_article_noscroll" => __("Open previous article (don't scroll long articles)"),
+				"next_article_noexpand" => __("Move to next article (don't expand or mark read)"),
+				"prev_article_noexpand" => __("Move to previous article (don't expand or mark read)"),
+				"search_dialog" => __("Show search dialog")),
+			__("Article") => array(
+				"toggle_mark" => __("Toggle starred"),
+				"toggle_publ" => __("Toggle published"),
+				"toggle_unread" => __("Toggle unread"),
+				"edit_tags" => __("Edit tags"),
+				"dismiss_selected" => __("Dismiss selected"),
+				"dismiss_read" => __("Dismiss read"),
+				"open_in_new_window" => __("Open in new window"),
+				"catchup_below" => __("Mark below as read"),
+				"catchup_above" => __("Mark above as read"),
+				"article_scroll_down" => __("Scroll down"),
+				"article_scroll_up" => __("Scroll up"),
+				"select_article_cursor" => __("Select article under cursor"),
+				"email_article" => __("Email article"),
+				"close_article" => __("Close/collapse article"),
+				"toggle_expand" => __("Toggle article expansion (combined mode)"),
+				"toggle_widescreen" => __("Toggle widescreen mode"),
+				"toggle_embed_original" => __("Toggle embed original")),
+			__("Article selection") => array(
+				"select_all" => __("Select all articles"),
+				"select_unread" => __("Select unread"),
+				"select_marked" => __("Select starred"),
+				"select_published" => __("Select published"),
+				"select_invert" => __("Invert selection"),
+				"select_none" => __("Deselect everything")),
+			__("Feed") => array(
+				"feed_refresh" => __("Refresh current feed"),
+				"feed_unhide_read" => __("Un/hide read feeds"),
+				"feed_subscribe" => __("Subscribe to feed"),
+				"feed_edit" => __("Edit feed"),
+				"feed_catchup" => __("Mark as read"),
+				"feed_reverse" => __("Reverse headlines"),
+				"feed_debug_update" => __("Debug feed update"),
+				"catchup_all" => __("Mark all feeds as read"),
+				"cat_toggle_collapse" => __("Un/collapse current category"),
+				"toggle_combined_mode" => __("Toggle combined mode"),
+				"toggle_cdm_expanded" => __("Toggle auto expand in combined mode")),
+			__("Go to") => array(
+				"goto_all" => __("All articles"),
+				"goto_fresh" => __("Fresh"),
+				"goto_marked" => __("Starred"),
+				"goto_published" => __("Published"),
+				"goto_tagcloud" => __("Tag cloud"),
+				"goto_prefs" => __("Preferences")),
+			__("Other") => array(
+				"create_label" => __("Create label"),
+				"create_filter" => __("Create filter"),
+				"collapse_sidebar" => __("Un/collapse sidebar"),
+				"help_dialog" => __("Show help dialog"))
+			);
+
+		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_INFO) as $plugin) {
+			$hotkeys = $plugin->hook_hotkey_info($hotkeys);
+		}
+
+		return $hotkeys;
+	}
+
+	function get_hotkeys_map() {
+		$hotkeys = array(
+//			"navigation" => array(
+				"k" => "next_feed",
+				"j" => "prev_feed",
+				"n" => "next_article",
+				"p" => "prev_article",
+				"(38)|up" => "prev_article",
+				"(40)|down" => "next_article",
+//				"^(38)|Ctrl-up" => "prev_article_noscroll",
+//				"^(40)|Ctrl-down" => "next_article_noscroll",
+				"(191)|/" => "search_dialog",
+//			"article" => array(
+				"s" => "toggle_mark",
+				"*s" => "toggle_publ",
+				"u" => "toggle_unread",
+				"*t" => "edit_tags",
+				"*d" => "dismiss_selected",
+				"*x" => "dismiss_read",
+				"o" => "open_in_new_window",
+				"c p" => "catchup_below",
+				"c n" => "catchup_above",
+				"*n" => "article_scroll_down",
+				"*p" => "article_scroll_up",
+				"*(38)|Shift+up" => "article_scroll_up",
+				"*(40)|Shift+down" => "article_scroll_down",
+				"a *w" => "toggle_widescreen",
+				"a e" => "toggle_embed_original",
+				"e" => "email_article",
+				"a q" => "close_article",
+//			"article_selection" => array(
+				"a a" => "select_all",
+				"a u" => "select_unread",
+				"a *u" => "select_marked",
+				"a p" => "select_published",
+				"a i" => "select_invert",
+				"a n" => "select_none",
+//			"feed" => array(
+				"f r" => "feed_refresh",
+				"f a" => "feed_unhide_read",
+				"f s" => "feed_subscribe",
+				"f e" => "feed_edit",
+				"f q" => "feed_catchup",
+				"f x" => "feed_reverse",
+				"f *d" => "feed_debug_update",
+				"f *c" => "toggle_combined_mode",
+				"f c" => "toggle_cdm_expanded",
+				"*q" => "catchup_all",
+				"x" => "cat_toggle_collapse",
+//			"goto" => array(
+				"g a" => "goto_all",
+				"g f" => "goto_fresh",
+				"g s" => "goto_marked",
+				"g p" => "goto_published",
+				"g t" => "goto_tagcloud",
+				"g *p" => "goto_prefs",
+//			"other" => array(
+				"(9)|Tab" => "select_article_cursor", // tab
+				"c l" => "create_label",
+				"c f" => "create_filter",
+				"c s" => "collapse_sidebar",
+				"^(191)|Ctrl+/" => "help_dialog",
+			);
+
+		if (get_pref('COMBINED_DISPLAY_MODE')) {
+			$hotkeys["^(38)|Ctrl-up"] = "prev_article_noscroll";
+			$hotkeys["^(40)|Ctrl-down"] = "next_article_noscroll";
+		}
+
+		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_MAP) as $plugin) {
+			$hotkeys = $plugin->hook_hotkey_map($hotkeys);
+		}
+
+		$prefixes = array();
+
+		foreach (array_keys($hotkeys) as $hotkey) {
+			$pair = explode(" ", $hotkey, 2);
+
+			if (count($pair) > 1 && !in_array($pair[0], $prefixes)) {
+				array_push($prefixes, $pair[0]);
+			}
+		}
+
+		return array($prefixes, $hotkeys);
+	}
+
+	function make_runtime_info() {
+		$data = array();
+
+		$result = db_query("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
+			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
+
+		$max_feed_id = db_fetch_result($result, 0, "mid");
+		$num_feeds = db_fetch_result($result, 0, "nf");
+
+		$data["max_feed_id"] = (int) $max_feed_id;
+		$data["num_feeds"] = (int) $num_feeds;
+
+		$data['last_article_id'] = getLastArticleId();
+		$data['cdm_expanded'] = get_pref('CDM_EXPANDED');
+
+		$data['dep_ts'] = calculate_dep_timestamp();
+		$data['reload_on_ts_change'] = !defined('_NO_RELOAD_ON_TS_CHANGE');
+
+		if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
+
+			$data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
+
+			if (time() - $_SESSION["daemon_stamp_check"] > 30) {
+
+				$stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
+
+				if ($stamp) {
+					$stamp_delta = time() - $stamp;
+
+					if ($stamp_delta > 1800) {
+						$stamp_check = 0;
+					} else {
+						$stamp_check = 1;
+						$_SESSION["daemon_stamp_check"] = time();
+					}
+
+					$data['daemon_stamp_ok'] = $stamp_check;
+
+					$stamp_fmt = date("Y.m.d, G:i", $stamp);
+
+					$data['daemon_stamp'] = $stamp_fmt;
+				}
+			}
+		}
+
+		if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
+				$new_version_details = @check_for_update();
+
+				$data['new_version_available'] = (int) ($new_version_details != false);
+
+				$_SESSION["last_version_check"] = time();
+				$_SESSION["version_data"] = $new_version_details;
+		}
+
+		return $data;
+	}
+
+	function search_to_sql($search) {
+
+		$search_query_part = "";
+
+		$keywords = str_getcsv($search, " ");
+		$query_keywords = array();
+		$search_words = array();
+
+		foreach ($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 '%".
+						db_escape_string(mb_strtolower($commandpair[1]))."%'))");
+				} else {
+					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
+							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
+					array_push($search_words, $k);
+				}
+				break;
+			case "author":
+				if ($commandpair[1]) {
+					array_push($query_keywords, "($not (LOWER(author) LIKE '%".
+						db_escape_string(mb_strtolower($commandpair[1]))."%'))");
+				} else {
+					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
+							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$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 '%".
+							db_escape_string(mb_strtolower($commandpair[1]))."%'))");
+				} else {
+					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
+							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$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) $not LIKE UPPER('%$k%')
+							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$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) $not LIKE UPPER('%$k%'))");
+					if (!$not) array_push($search_words, $k);
+				}
+				break;
+			default:
+				if (strpos($k, "@") === 0) {
+
+					$user_tz_string = get_pref('USER_TIMEZONE', $_SESSION['uid']);
+					$orig_ts = strtotime(substr($k, 1));
+					$k = date("Y-m-d", convert_timestamp($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 {
+					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
+							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
+
+					if (!$not) array_push($search_words, $k);
+				}
+			}
+		}
+
+		$search_query_part = implode("AND", $query_keywords);
+
+		return array($search_query_part, $search_words);
+	}
+
+	function getParentCategories($cat, $owner_uid) {
+		$rv = array();
+
+		$result = db_query("SELECT parent_cat FROM ttrss_feed_categories
+			WHERE id = '$cat' AND parent_cat IS NOT NULL AND owner_uid = $owner_uid");
+
+		while ($line = db_fetch_assoc($result)) {
+			array_push($rv, $line["parent_cat"]);
+			$rv = array_merge($rv, getParentCategories($line["parent_cat"], $owner_uid));
+		}
+
+		return $rv;
+	}
+
+	function getChildCategories($cat, $owner_uid) {
+		$rv = array();
+
+		$result = db_query("SELECT id FROM ttrss_feed_categories
+			WHERE parent_cat = '$cat' AND owner_uid = $owner_uid");
+
+		while ($line = db_fetch_assoc($result)) {
+			array_push($rv, $line["id"]);
+			$rv = array_merge($rv, getChildCategories($line["id"], $owner_uid));
+		}
+
+		return $rv;
+	}
+
+	function queryFeedHeadlines($feed, $limit, $view_mode, $cat_view, $search, $search_mode, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false, $ignore_vfeed_group = false, $override_strategy = false, $override_vfeed = false) {
+
+		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
+
+		$ext_tables_part = "";
+		$search_words = array();
+
+			if ($search) {
+
+				if (SPHINX_ENABLED) {
+					$ids = join(",", @sphinx_search($search, 0, 500));
+
+					if ($ids)
+						$search_query_part = "ref_id IN ($ids) AND ";
+					else
+						$search_query_part = "ref_id = -1 AND ";
+
+				} else {
+					list($search_query_part, $search_words) = search_to_sql($search);
+					$search_query_part .= " AND ";
+				}
+
+			} else {
+				$search_query_part = "";
+			}
+
+			if ($filter) {
+
+				if (DB_TYPE == "pgsql") {
+					$query_strategy_part .= " AND updated > NOW() - INTERVAL '14 days' ";
+				} else {
+					$query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL 14 DAY) ";
+				}
+
+				$override_order = "updated DESC";
+
+				$filter_query_part = filter_to_sql($filter, $owner_uid);
+
+				// Try to check if SQL regexp implementation chokes on a valid regexp
+
+
+				$result = db_query("SELECT true AS true_val FROM ttrss_entries,
+					ttrss_user_entries, ttrss_feeds
+					WHERE $filter_query_part LIMIT 1", false);
+
+				if ($result) {
+					$test = db_fetch_result($result, 0, "true_val");
+
+					if (!$test) {
+						$filter_query_part = "false AND";
+					} else {
+						$filter_query_part .= " AND";
+					}
+				} else {
+					$filter_query_part = "false AND";
+				}
+
+			} else {
+				$filter_query_part = "";
+			}
+
+			if ($since_id) {
+				$since_id_part = "ttrss_entries.id > $since_id AND ";
+			} else {
+				$since_id_part = "";
+			}
+
+			$view_query_part = "";
+
+			if ($view_mode == "adaptive") {
+				if ($search) {
+					$view_query_part = " ";
+				} else if ($feed != -1) {
+
+					$unread = getFeedUnread($feed, $cat_view);
+
+					if ($cat_view && $feed > 0 && $include_children)
+						$unread += getCategoryChildrenUnread($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 != -6) {
+				$view_query_part = " unread = true AND ";
+			}
+
+			if ($limit > 0) {
+				$limit_query_part = "LIMIT " . $limit;
+			}
+
+			$allow_archived = false;
+
+			$vfeed_query_part = "";
+
+			// override query strategy and enable feed display when searching globally
+			if ($search && $search_mode == "all_feeds") {
+				$query_strategy_part = "true";
+				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
+			/* tags */
+			} else if (!is_numeric($feed)) {
+				$query_strategy_part = "true";
+				$vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
+					id = feed_id) as feed_title,";
+			} else if ($search && $search_mode == "this_cat") {
+				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
+
+				if ($feed > 0) {
+					if ($include_children) {
+						$subcats = getChildCategories($feed, $owner_uid);
+						array_push($subcats, $feed);
+						$cats_qpart = join(",", $subcats);
+					} else {
+						$cats_qpart = $feed;
+					}
+
+					$query_strategy_part = "ttrss_feeds.cat_id IN ($cats_qpart)";
+
+				} else {
+					$query_strategy_part = "ttrss_feeds.cat_id IS NULL";
+				}
+
+			} else if ($feed > 0) {
+
+				if ($cat_view) {
+
+					if ($feed > 0) {
+						if ($include_children) {
+							# sub-cats
+							$subcats = getChildCategories($feed, $owner_uid);
+
+							array_push($subcats, $feed);
+							$query_strategy_part = "cat_id IN (".
+									implode(",", $subcats).")";
+
+						} else {
+							$query_strategy_part = "cat_id = '$feed'";
+						}
+
+					} else {
+						$query_strategy_part = "cat_id IS NULL";
+					}
+
+					$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
+
+				} else {
+					$query_strategy_part = "feed_id = '$feed'";
+				}
+			} else if ($feed == 0 && !$cat_view) { // archive virtual feed
+				$query_strategy_part = "feed_id IS NULL";
+				$allow_archived = true;
+			} else if ($feed == 0 && $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
+				$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 OR labels category
+
+				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 == -6) { // recently read
+				$query_strategy_part = "unread = false AND last_read IS NOT NULL";
+				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
+				$allow_archived = true;
+
+				if (!$override_order) $override_order = "last_read DESC";
+
+/*			} else if ($feed == -7) { // shared
+				$query_strategy_part = "uuid != ''";
+				$vfeed_query_part = "ttrss_feeds.title AS feed_title,";
+				$allow_archived = true; */
+			} else if ($feed == -3) { // fresh virtual feed
+				$query_strategy_part = "unread = true AND score >= 0";
+
+				$intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
+
+				if (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 == -4) { // 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
+				$label_id = feed_to_label_id($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";
+			}
+
+			$order_by = "score DESC, date_entered DESC, updated DESC";
+
+			if ($view_mode == "unread_first") {
+				$order_by = "unread DESC, $order_by";
+			}
+
+			if ($override_order) {
+				$order_by = $override_order;
+			}
+
+			if ($override_strategy) {
+				$query_strategy_part = $override_strategy;
+			}
+
+			if ($override_vfeed) {
+				$vfeed_query_part = $override_vfeed;
+			}
+
+			$feed_title = "";
+
+			if ($search) {
+				$feed_title = T_sprintf("Search results: %s", $search);
+			} else {
+				if ($cat_view) {
+					$feed_title = getCategoryTitle($feed);
+				} else {
+					if (is_numeric($feed) && $feed > 0) {
+						$result = db_query("SELECT title,site_url,last_error,last_updated
+							FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
+
+						$feed_title = db_fetch_result($result, 0, "title");
+						$feed_site_url = db_fetch_result($result, 0, "site_url");
+						$last_error = db_fetch_result($result, 0, "last_error");
+						$last_updated = db_fetch_result($result, 0, "last_updated");
+					} else {
+						$feed_title = getFeedTitle($feed);
+					}
+				}
+			}
+
+
+			$content_query_part = "content, ";
+
+
+			if (is_numeric($feed)) {
+
+				if ($feed >= 0) {
+					$feed_kind = "Feeds";
+				} else {
+					$feed_kind = "Labels";
+				}
+
+				if ($limit_query_part) {
+					$offset_query_part = "OFFSET $offset";
+				}
+
+				// proper override_order applied above
+				if ($vfeed_query_part && !$ignore_vfeed_group && get_pref('VFEED_GROUP_BY_FEED', $owner_uid)) {
+					if (!$override_order) {
+						$order_by = "ttrss_feeds.title, $order_by";
+					} else {
+						$order_by = "ttrss_feeds.title, $override_order";
+					}
+				}
+
+				if (!$allow_archived) {
+					$from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
+					$feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
+
+				} else {
+					$from_qpart = "ttrss_entries$ext_tables_part,ttrss_user_entries
+						LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
+				}
+
+				if ($vfeed_query_part)
+					$vfeed_query_part .= "favicon_avg_color,";
+
+				$query = "SELECT DISTINCT
+						date_entered,
+						guid,
+						ttrss_entries.id,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,orig_feed_id,
+						last_marked, last_published,
+						$vfeed_query_part
+						$content_query_part
+						author,score
+					FROM
+						$from_qpart
+					WHERE
+					$feed_check_qpart
+					ttrss_user_entries.ref_id = ttrss_entries.id AND
+					ttrss_user_entries.owner_uid = '$owner_uid' AND
+					$search_query_part
+					$filter_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;
+
+				$result = db_query($query);
+
+			} else {
+				// browsing by tag
+
+				$select_qpart = "SELECT DISTINCT " .
+								"date_entered," .
+								"guid," .
+								"note," .
+								"ttrss_entries.id as id," .
+								"title," .
+								"updated," .
+								"unread," .
+								"feed_id," .
+								"orig_feed_id," .
+								"marked," .
+								"num_comments, " .
+								"comments, " .
+								"tag_cache," .
+								"label_cache," .
+								"link," .
+								"lang," .
+								"uuid," .
+								"last_read," .
+								"(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) AS hide_images," .
+								"last_marked, last_published, " .
+								$since_id_part .
+								$vfeed_query_part .
+								$content_query_part .
+								"score ";
+
+				$feed_kind = "Tags";
+				$all_tags = explode(",", $feed);
+				if ($search_mode == 'any') {
+					$tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
+					$from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
+					$where_qpart = " WHERE " .
+								   "ref_id = ttrss_entries.id AND " .
+								   "ttrss_user_entries.owner_uid = $owner_uid AND " .
+								   "post_int_id = int_id AND $tag_sql AND " .
+								   $view_query_part .
+								   $search_query_part .
+								   $query_strategy_part . " ORDER BY $order_by " .
+								   $limit_query_part;
+
+				} else {
+					$i = 1;
+					$sub_selects = array();
+					$sub_ands = array();
+					foreach ($all_tags as $term) {
+						array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
+						$i++;
+					}
+					if ($i > 2) {
+						$x = 1;
+						$y = 2;
+						do {
+							array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
+							$x++;
+							$y++;
+						} while ($y < $i);
+					}
+					array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
+					array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
+					$from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
+					$where_qpart = " WHERE " . implode(" AND ", $sub_ands);
+				}
+				//				error_log("TAG SQL: " . $tag_sql);
+				// $tag_sql = "tag_name = '$feed'";   DEFAULT way
+
+				//				error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
+				$result = db_query($select_qpart . $from_qpart . $where_qpart);
+			}
+
+			return array($result, $feed_title, $feed_site_url, $last_error, $last_updated, $search_words);
+
+	}
+
+	function sanitize($str, $force_remove_images = false, $owner = false, $site_url = false, $highlight_words = false, $article_id = false) {
+		if (!$owner) $owner = $_SESSION["uid"];
+
+		$res = trim($str); if (!$res) return '';
+
+		$charset_hack = '<head>
+			<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+		</head>';
+
+		$res = trim($res); if (!$res) return '';
+
+		libxml_use_internal_errors(true);
+
+		$doc = new DOMDocument();
+		$doc->loadHTML($charset_hack . $res);
+		$xpath = new DOMXPath($doc);
+
+		$entries = $xpath->query('(//a[@href]|//img[@src])');
+
+		foreach ($entries as $entry) {
+
+			if ($site_url) {
+
+				if ($entry->hasAttribute('href')) {
+					$entry->setAttribute('href',
+						rewrite_relative_url($site_url, $entry->getAttribute('href')));
+
+					$entry->setAttribute('rel', 'noreferrer');
+				}
+
+				if ($entry->hasAttribute('src')) {
+					$src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
+
+					$cached_filename = CACHE_DIR . '/images/' . sha1($src) . '.png';
+
+					if (file_exists($cached_filename)) {
+						$src = SELF_URL_PATH . '/image.php?hash=' . sha1($src);
+					}
+
+					$entry->setAttribute('src', $src);
+				}
+
+				if ($entry->nodeName == 'img') {
+					if (($owner && get_pref("STRIP_IMAGES", $owner)) ||
+							$force_remove_images || $_SESSION["bw_limit"]) {
+
+						$p = $doc->createElement('p');
+
+						$a = $doc->createElement('a');
+						$a->setAttribute('href', $entry->getAttribute('src'));
+
+						$a->appendChild(new DOMText($entry->getAttribute('src')));
+						$a->setAttribute('target', '_blank');
+
+						$p->appendChild($a);
+
+						$entry->parentNode->replaceChild($p, $entry);
+					}
+				}
+			}
+
+			if (strtolower($entry->nodeName) == "a") {
+				$entry->setAttribute("target", "_blank");
+			}
+		}
+
+		$entries = $xpath->query('//iframe');
+		foreach ($entries as $entry) {
+			$entry->setAttribute('sandbox', 'allow-scripts');
+
+		}
+
+		$allowed_elements = array('a', 'address', 'audio', 'article', 'aside',
+			'b', 'bdi', 'bdo', 'big', 'blockquote', 'body', 'br',
+			'caption', 'cite', 'center', 'code', 'col', 'colgroup',
+			'data', 'dd', 'del', 'details', 'div', 'dl', 'font',
+			'dt', 'em', 'footer', 'figure', 'figcaption',
+			'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'html', 'i',
+			'img', 'ins', 'kbd', 'li', 'main', 'mark', 'nav', 'noscript',
+			'ol', 'p', 'pre', 'q', 'ruby', 'rp', 'rt', 's', 'samp', 'section',
+			'small', 'source', 'span', 'strike', 'strong', 'sub', 'summary',
+			'sup', 'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'time',
+			'tr', 'track', 'tt', 'u', 'ul', 'var', 'wbr', 'video' );
+
+		if ($_SESSION['hasSandbox']) $allowed_elements[] = 'iframe';
+
+		$disallowed_attributes = array('id', 'style', 'class');
+
+		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SANITIZE) as $plugin) {
+			$retval = $plugin->hook_sanitize($doc, $site_url, $allowed_elements, $disallowed_attributes, $article_id);
+			if (is_array($retval)) {
+				$doc = $retval[0];
+				$allowed_elements = $retval[1];
+				$disallowed_attributes = $retval[2];
+			} else {
+				$doc = $retval;
+			}
+		}
+
+		$doc->removeChild($doc->firstChild); //remove doctype
+		$doc = strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes);
+
+		if ($highlight_words) {
+			foreach ($highlight_words as $word) {
+
+				// http://stackoverflow.com/questions/4081372/highlight-keywords-in-a-paragraph
+
+				$elements = $xpath->query("//*/text()");
+
+				foreach ($elements as $child) {
+
+					$fragment = $doc->createDocumentFragment();
+					$text = $child->textContent;
+
+					while (($pos = mb_stripos($text, $word)) !== false) {
+						$fragment->appendChild(new DomText(mb_substr($text, 0, $pos)));
+						$word = mb_substr($text, $pos, mb_strlen($word));
+						$highlight = $doc->createElement('span');
+						$highlight->appendChild(new DomText($word));
+						$highlight->setAttribute('class', 'highlight');
+						$fragment->appendChild($highlight);
+						$text = mb_substr($text, $pos + mb_strlen($word));
+					}
+
+					if (!empty($text)) $fragment->appendChild(new DomText($text));
+
+					$child->parentNode->replaceChild($fragment, $child);
+				}
+			}
+		}
+
+		$res = $doc->saveHTML();
+
+		return $res;
+	}
+
+	function strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes) {
+		$xpath = new DOMXPath($doc);
+		$entries = $xpath->query('//*');
+
+		foreach ($entries as $entry) {
+			if (!in_array($entry->nodeName, $allowed_elements)) {
+				$entry->parentNode->removeChild($entry);
+			}
+
+			if ($entry->hasAttributes()) {
+				$attrs_to_remove = array();
+
+				foreach ($entry->attributes as $attr) {
+
+					if (strpos($attr->nodeName, 'on') === 0) {
+						array_push($attrs_to_remove, $attr);
+					}
+
+					if (in_array($attr->nodeName, $disallowed_attributes)) {
+						array_push($attrs_to_remove, $attr);
+					}
+				}
+
+				foreach ($attrs_to_remove as $attr) {
+					$entry->removeAttributeNode($attr);
+				}
+			}
+		}
+
+		return $doc;
+	}
+
+	function check_for_update() {
+		if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
+			$version_url = "http://tt-rss.org/version.php?ver=" . VERSION .
+				"&iid=" . sha1(SELF_URL_PATH);
+
+			$version_data = @fetch_file_contents($version_url);
+
+			if ($version_data) {
+				$version_data = json_decode($version_data, true);
+				if ($version_data && $version_data['version']) {
+					if (version_compare(VERSION_STATIC, $version_data['version']) == -1) {
+						return $version_data;
+					}
+				}
+			}
+		}
+		return false;
+	}
+
+	function catchupArticlesById($ids, $cmode, $owner_uid = false) {
+
+		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
+		if (count($ids) == 0) return;
+
+		$tmp_ids = array();
+
+		foreach ($ids as $id) {
+			array_push($tmp_ids, "ref_id = '$id'");
+		}
+
+		$ids_qpart = join(" OR ", $tmp_ids);
+
+		if ($cmode == 0) {
+			db_query("UPDATE ttrss_user_entries SET
+			unread = false,last_read = NOW()
+			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
+		} else if ($cmode == 1) {
+			db_query("UPDATE ttrss_user_entries SET
+			unread = true
+			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
+		} else {
+			db_query("UPDATE ttrss_user_entries SET
+			unread = NOT unread,last_read = NOW()
+			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
+		}
+
+		/* update ccache */
+
+		$result = db_query("SELECT DISTINCT feed_id FROM ttrss_user_entries
+			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
+
+		while ($line = db_fetch_assoc($result)) {
+			ccache_update($line["feed_id"], $owner_uid);
+		}
+	}
+
+	function get_article_tags($id, $owner_uid = 0, $tag_cache = false) {
+
+		$a_id = db_escape_string($id);
+
+		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
+
+		$query = "SELECT DISTINCT tag_name,
+			owner_uid as owner FROM
+			ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
+			ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
+
+		$tags = array();
+
+		/* check cache first */
+
+		if ($tag_cache === false) {
+			$result = db_query("SELECT tag_cache FROM ttrss_user_entries
+				WHERE ref_id = '$id' AND owner_uid = $owner_uid");
+
+			$tag_cache = db_fetch_result($result, 0, "tag_cache");
+		}
+
+		if ($tag_cache) {
+			$tags = explode(",", $tag_cache);
+		} else {
+
+			/* do it the hard way */
+
+			$tmp_result = db_query($query);
+
+			while ($tmp_line = db_fetch_assoc($tmp_result)) {
+				array_push($tags, $tmp_line["tag_name"]);
+			}
+
+			/* update the cache */
+
+			$tags_str = db_escape_string(join(",", $tags));
+
+			db_query("UPDATE ttrss_user_entries
+				SET tag_cache = '$tags_str' WHERE ref_id = '$id'
+				AND owner_uid = $owner_uid");
+		}
+
+		return $tags;
+	}
+
+	function trim_array($array) {
+		$tmp = $array;
+		array_walk($tmp, 'trim');
+		return $tmp;
+	}
+
+	function tag_is_valid($tag) {
+		if ($tag == '') return false;
+		if (preg_match("/^[0-9]*$/", $tag)) return false;
+		if (mb_strlen($tag) > 250) return false;
+
+		if (!$tag) return false;
+
+		return true;
+	}
+
+	function render_login_form() {
+		header('Cache-Control: public');
+
+		require_once "login_form.php";
+		exit;
+	}
+
+	function format_warning($msg, $id = "") {
+		return "<div class=\"warning\" id=\"$id\">
+			<span><img src=\"images/alert.png\"></span><span>$msg</span></div>";
+	}
+
+	function format_notice($msg, $id = "") {
+		return "<div class=\"notice\" id=\"$id\">
+			<span><img src=\"images/information.png\"></span><span>$msg</span></div>";
+	}
+
+	function format_error($msg, $id = "") {
+		return "<div class=\"error\" id=\"$id\">
+			<span><img src=\"images/alert.png\"></span><span>$msg</span></div>";
+	}
+
+	function print_notice($msg) {
+		return print format_notice($msg);
+	}
+
+	function print_warning($msg) {
+		return print format_warning($msg);
+	}
+
+	function print_error($msg) {
+		return print format_error($msg);
+	}
+
+
+	function T_sprintf() {
+		$args = func_get_args();
+		return vsprintf(__(array_shift($args)), $args);
+	}
+
+	function format_inline_player($url, $ctype) {
+
+		$entry = "";
+
+		$url = htmlspecialchars($url);
+
+		if (strpos($ctype, "audio/") === 0) {
+
+			if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
+				$_SESSION["hasMp3"])) {
+
+				$entry .= "<audio preload=\"none\" controls>
+					<source type=\"$ctype\" src=\"$url\"></source>
+					</audio>";
+
+			} else {
+
+				$entry .= "<object type=\"application/x-shockwave-flash\"
+					data=\"lib/button/musicplayer.swf?song_url=$url\"
+					width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
+					<param name=\"movie\"
+						value=\"lib/button/musicplayer.swf?song_url=$url\" />
+					</object>";
+			}
+
+			if ($entry) $entry .= "&nbsp; <a target=\"_blank\"
+				href=\"$url\">" . basename($url) . "</a>";
+
+			return $entry;
+
+		}
+
+		return "";
+
+/*		$filename = substr($url, strrpos($url, "/")+1);
+
+		$entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
+			$filename . " (" . $ctype . ")" . "</a>"; */
+
+	}
+
+	function format_article($id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
+		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
+
+		$rv = array();
+
+		$rv['id'] = $id;
+
+		/* we can figure out feed_id from article id anyway, why do we
+		 * pass feed_id here? let's ignore the argument :(*/
+
+		$result = db_query("SELECT feed_id FROM ttrss_user_entries
+			WHERE ref_id = '$id'");
+
+		$feed_id = (int) db_fetch_result($result, 0, "feed_id");
+
+		$rv['feed_id'] = $feed_id;
+
+		//if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
+
+		if ($mark_as_read) {
+			$result = db_query("UPDATE ttrss_user_entries
+				SET unread = false,last_read = NOW()
+				WHERE ref_id = '$id' AND owner_uid = $owner_uid");
+
+			ccache_update($feed_id, $owner_uid);
+		}
+
+		$result = db_query("SELECT id,title,link,content,feed_id,comments,int_id,lang,
+			".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
+			(SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
+			(SELECT title FROM ttrss_feeds WHERE id = feed_id) as feed_title,
+			(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) as hide_images,
+			(SELECT always_display_enclosures FROM ttrss_feeds WHERE id = feed_id) as always_display_enclosures,
+			num_comments,
+			tag_cache,
+			author,
+			orig_feed_id,
+			note
+			FROM ttrss_entries,ttrss_user_entries
+			WHERE	id = '$id' AND ref_id = id AND owner_uid = $owner_uid");
+
+		if ($result) {
+
+			$line = db_fetch_assoc($result);
+
+			$line["tags"] = get_article_tags($id, $owner_uid, $line["tag_cache"]);
+			unset($line["tag_cache"]);
+
+			$line["content"] = sanitize($line["content"],
+				sql_bool_to_bool($line['hide_images']),
+				$owner_uid, $line["site_url"], false, $line["id"]);
+
+			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE) as $p) {
+				$line = $p->hook_render_article($line);
+			}
+
+			$num_comments = $line["num_comments"];
+			$entry_comments = "";
+
+			if ($num_comments > 0) {
+				if ($line["comments"]) {
+					$comments_url = htmlspecialchars($line["comments"]);
+				} else {
+					$comments_url = htmlspecialchars($line["link"]);
+				}
+				$entry_comments = "<a class=\"postComments\"
+					target='_blank' href=\"$comments_url\">$num_comments ".
+					_ngettext("comment", "comments", $num_comments)."</a>";
+
+			} else {
+				if ($line["comments"] && $line["link"] != $line["comments"]) {
+					$entry_comments = "<a class=\"postComments\" target='_blank' href=\"".htmlspecialchars($line["comments"])."\">".__("comments")."</a>";
+				}
+			}
+
+			if ($zoom_mode) {
+				header("Content-Type: text/html");
+				$rv['content'] .= "<html><head>
+						<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
+						<title>Tiny Tiny RSS - ".$line["title"]."</title>".
+						stylesheet_tag("css/tt-rss.css").
+						stylesheet_tag("css/zoom.css").
+						stylesheet_tag("css/dijit.css")."
+
+						<link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
+						<link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">
+
+						<script type=\"text/javascript\">
+						function openSelectedAttachment(elem) {
+							try {
+								var url = elem[elem.selectedIndex].value;
+
+								if (url) {
+									window.open(url);
+									elem.selectedIndex = 0;
+								}
+
+							} catch (e) {
+								exception_error(\"openSelectedAttachment\", e);
+							}
+						}
+					</script>
+					</head><body id=\"ttrssZoom\">";
+			}
+
+			$rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
+
+			$rv['content'] .= "<div class=\"postHeader\" id=\"POSTHDR-$id\">";
+
+			$entry_author = $line["author"];
+
+			if ($entry_author) {
+				$entry_author = __(" - ") . $entry_author;
+			}
+
+			$parsed_updated = make_local_datetime($line["updated"], true,
+				$owner_uid, true);
+
+			if (!$zoom_mode)
+				$rv['content'] .= "<div class=\"postDate\">$parsed_updated</div>";
+
+			if ($line["link"]) {
+				$rv['content'] .= "<div class='postTitle'><a target='_blank'
+					title=\"".htmlspecialchars($line['title'])."\"
+					href=\"" .
+					htmlspecialchars($line["link"]) . "\">" .
+					$line["title"] . "</a>" .
+					"<span class='author'>$entry_author</span></div>";
+			} else {
+				$rv['content'] .= "<div class='postTitle'>" . $line["title"] . "$entry_author</div>";
+			}
+
+			if ($zoom_mode) {
+				$feed_title = "<a href=\"".htmlspecialchars($line["site_url"]).
+					"\" target=\"_blank\">".
+					htmlspecialchars($line["feed_title"])."</a>";
+
+				$rv['content'] .= "<div class=\"postFeedTitle\">$feed_title</div>";
+
+				$rv['content'] .= "<div class=\"postDate\">$parsed_updated</div>";
+			}
+
+			$tags_str = format_tags_string($line["tags"], $id);
+			$tags_str_full = join(", ", $line["tags"]);
+
+			if (!$tags_str_full) $tags_str_full = __("no tags");
+
+			if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
+
+			$rv['content'] .= "<div class='postTags' style='float : right'>
+				<img src='images/tag.png'
+				class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
+
+			if (!$zoom_mode) {
+				$rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
+					<a title=\"".__('Edit tags for this article')."\"
+					href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
+
+				$rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
+					id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
+					position=\"below\">$tags_str_full</div>";
+
+				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_BUTTON) as $p) {
+					$rv['content'] .= $p->hook_article_button($line);
+				}
+
+			} else {
+				$tags_str = strip_tags($tags_str);
+				$rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
+			}
+			$rv['content'] .= "</div>";
+			$rv['content'] .= "<div clear='both'>";
+
+			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_LEFT_BUTTON) as $p) {
+				$rv['content'] .= $p->hook_article_left_button($line);
+			}
+
+			$rv['content'] .= "$entry_comments</div>";
+
+			if ($line["orig_feed_id"]) {
+
+				$tmp_result = db_query("SELECT * FROM ttrss_archived_feeds
+					WHERE id = ".$line["orig_feed_id"]);
+
+				if (db_num_rows($tmp_result) != 0) {
+
+					$rv['content'] .= "<div clear='both'>";
+					$rv['content'] .= __("Originally from:");
+
+					$rv['content'] .= "&nbsp;";
+
+					$tmp_line = db_fetch_assoc($tmp_result);
+
+					$rv['content'] .= "<a target='_blank'
+						href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
+						$tmp_line['title'] . "</a>";
+
+					$rv['content'] .= "&nbsp;";
+
+					$rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
+					$rv['content'] .= "<img title='".__('Feed URL')."' class='tinyFeedIcon' src='images/pub_set.png'></a>";
+
+					$rv['content'] .= "</div>";
+				}
+			}
+
+			$rv['content'] .= "</div>";
+
+			$rv['content'] .= "<div id=\"POSTNOTE-$id\">";
+				if ($line['note']) {
+					$rv['content'] .= format_article_note($id, $line['note'], !$zoom_mode);
+				}
+			$rv['content'] .= "</div>";
+
+			if (!$line['lang']) $line['lang'] = 'en';
+
+			$rv['content'] .= "<div class=\"postContent\" lang=\"".$line['lang']."\">";
+
+			$rv['content'] .= $line["content"];
+			$rv['content'] .= format_article_enclosures($id,
+				sql_bool_to_bool($line["always_display_enclosures"]),
+				$line["content"],
+				sql_bool_to_bool($line["hide_images"]));
+
+			$rv['content'] .= "</div>";
+
+			$rv['content'] .= "</div>";
+
+		}
+
+		if ($zoom_mode) {
+			$rv['content'] .= "
+				<div class='footer'>
+				<button onclick=\"return window.close()\">".
+					__("Close this window")."</button></div>";
+			$rv['content'] .= "</body></html>";
+		}
+
+		return $rv;
+
+	}
+
+	function print_checkpoint($n, $s) {
+		$ts = microtime(true);
+		echo sprintf("<!-- CP[$n] %.4f seconds -->\n", $ts - $s);
+		return $ts;
+	}
+
+	function sanitize_tag($tag) {
+		$tag = trim($tag);
+
+		$tag = mb_strtolower($tag, 'utf-8');
+
+		$tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
+
+//		$tag = str_replace('"', "", $tag);
+//		$tag = str_replace("+", " ", $tag);
+		$tag = str_replace("technorati tag: ", "", $tag);
+
+		return $tag;
+	}
+
+	function get_self_url_prefix() {
+		if (strrpos(SELF_URL_PATH, "/") === strlen(SELF_URL_PATH)-1) {
+			return substr(SELF_URL_PATH, 0, strlen(SELF_URL_PATH)-1);
+		} else {
+			return SELF_URL_PATH;
+		}
+	}
+
+	/**
+	 * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
+	 *
+	 * @return string The Mozilla Firefox feed adding URL.
+	 */
+	function add_feed_url() {
+		//$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
+
+		$url_path = get_self_url_prefix() .
+			"/public.php?op=subscribe&feed_url=%s";
+		return $url_path;
+	} // function add_feed_url
+
+	function encrypt_password($pass, $salt = '', $mode2 = false) {
+		if ($salt && $mode2) {
+			return "MODE2:" . hash('sha256', $salt . $pass);
+		} else if ($salt) {
+			return "SHA1X:" . sha1("$salt:$pass");
+		} else {
+			return "SHA1:" . sha1($pass);
+		}
+	} // function encrypt_password
+
+	function load_filters($feed_id, $owner_uid, $action_id = false) {
+		$filters = array();
+
+		$cat_id = (int)getFeedCategory($feed_id);
+
+		if ($cat_id == 0)
+			$null_cat_qpart = "cat_id IS NULL OR";
+		else
+			$null_cat_qpart = "";
+
+		$result = db_query("SELECT * FROM ttrss_filters2 WHERE
+			owner_uid = $owner_uid AND enabled = true ORDER BY order_id, title");
+
+		$check_cats = join(",", array_merge(
+			getParentCategories($cat_id, $owner_uid),
+			array($cat_id)));
+
+		while ($line = db_fetch_assoc($result)) {
+			$filter_id = $line["id"];
+
+			$result2 = db_query("SELECT
+				r.reg_exp, r.inverse, r.feed_id, r.cat_id, r.cat_filter, t.name AS type_name
+				FROM ttrss_filters2_rules AS r,
+				ttrss_filter_types AS t
+				WHERE
+					($null_cat_qpart (cat_id IS NULL AND cat_filter = false) OR cat_id IN ($check_cats)) AND
+					(feed_id IS NULL OR feed_id = '$feed_id') AND
+					filter_type = t.id AND filter_id = '$filter_id'");
+
+			$rules = array();
+			$actions = array();
+
+			while ($rule_line = db_fetch_assoc($result2)) {
+#				print_r($rule_line);
+
+				$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);
+			}
+
+			$result2 = db_query("SELECT a.action_param,t.name AS type_name
+				FROM ttrss_filters2_actions AS a,
+				ttrss_filter_actions AS t
+				WHERE
+					action_id = t.id AND filter_id = '$filter_id'");
+
+			while ($action_line = db_fetch_assoc($result2)) {
+#				print_r($action_line);
+
+				$action = array();
+				$action["type"] = $action_line["type_name"];
+				$action["param"] = $action_line["action_param"];
+
+				array_push($actions, $action);
+			}
+
+
+			$filter = array();
+			$filter["match_any_rule"] = sql_bool_to_bool($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 $filters;
+	}
+
+	function get_score_pic($score) {
+		if ($score > 100) {
+			return "score_high.png";
+		} else if ($score > 0) {
+			return "score_half_high.png";
+		} else if ($score < -100) {
+			return "score_low.png";
+		} else if ($score < 0) {
+			return "score_half_low.png";
+		} else {
+			return "score_neutral.png";
+		}
+	}
+
+	function feed_has_icon($id) {
+		return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
+	}
+
+	function init_plugins() {
+		PluginHost::getInstance()->load(PLUGINS, PluginHost::KIND_ALL);
+
+		return true;
+	}
+
+	function format_tags_string($tags, $id) {
+		if (!is_array($tags) || count($tags) == 0) {
+			return __("no tags");
+		} else {
+			$maxtags = min(5, count($tags));
+
+			for ($i = 0; $i < $maxtags; $i++) {
+				$tags_str .= "<a class=\"tag\" href=\"#\" onclick=\"viewfeed('".$tags[$i]."')\">" . $tags[$i] . "</a>, ";
+			}
+
+			$tags_str = mb_substr($tags_str, 0, mb_strlen($tags_str)-2);
+
+			if (count($tags) > $maxtags)
+				$tags_str .= ", &hellip;";
+
+			return $tags_str;
+		}
+	}
+
+	function format_article_labels($labels, $id) {
+
+		if (!is_array($labels)) return '';
+
+		$labels_str = "";
+
+		foreach ($labels as $l) {
+			$labels_str .= sprintf("<span class='hlLabelRef'
+				style='color : %s; background-color : %s'>%s</span>",
+					$l[2], $l[3], $l[1]);
+			}
+
+		return $labels_str;
+
+	}
+
+	function format_article_note($id, $note, $allow_edit = true) {
+
+		$str = "<div class='articleNote'	onclick=\"editArticleNote($id)\">
+			<div class='noteEdit' onclick=\"editArticleNote($id)\">".
+			($allow_edit ? __('(edit note)') : "")."</div>$note</div>";
+
+		return $str;
+	}
+
+
+	function get_feed_category($feed_cat, $parent_cat_id = false) {
+		if ($parent_cat_id) {
+			$parent_qpart = "parent_cat = '$parent_cat_id'";
+			$parent_insert = "'$parent_cat_id'";
+		} else {
+			$parent_qpart = "parent_cat IS NULL";
+			$parent_insert = "NULL";
+		}
+
+		$result = db_query(
+			"SELECT id FROM ttrss_feed_categories
+			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
+
+		if (db_num_rows($result) == 0) {
+			return false;
+		} else {
+			return db_fetch_result($result, 0, "id");
+		}
+	}
+
+	function add_feed_category($feed_cat, $parent_cat_id = false) {
+
+		if (!$feed_cat) return false;
+
+		db_query("BEGIN");
+
+		if ($parent_cat_id) {
+			$parent_qpart = "parent_cat = '$parent_cat_id'";
+			$parent_insert = "'$parent_cat_id'";
+		} else {
+			$parent_qpart = "parent_cat IS NULL";
+			$parent_insert = "NULL";
+		}
+
+		$feed_cat = mb_substr($feed_cat, 0, 250);
+
+		$result = db_query(
+			"SELECT id FROM ttrss_feed_categories
+			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
+
+		if (db_num_rows($result) == 0) {
+
+			$result = db_query(
+				"INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
+				VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
+
+			db_query("COMMIT");
+
+			return true;
+		}
+
+		return false;
+	}
+
+	function getArticleFeed($id) {
+		$result = db_query("SELECT feed_id FROM ttrss_user_entries
+			WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
+
+		if (db_num_rows($result) != 0) {
+			return db_fetch_result($result, 0, "feed_id");
+		} else {
+			return 0;
+		}
+	}
+
+	/**
+	 * Fixes incomplete URLs by prepending "http://".
+	 * Also replaces feed:// with http://, and
+	 * prepends a trailing slash if the url is a domain name only.
+	 *
+	 * @param string $url Possibly incomplete URL
+	 *
+	 * @return string Fixed URL.
+	 */
+	function fix_url($url) {
+		if (strpos($url, '://') === false) {
+			$url = 'http://' . $url;
+		} else if (substr($url, 0, 5) == 'feed:') {
+			$url = 'http:' . substr($url, 5);
+		}
+
+		//prepend slash if the URL has no slash in it
+		// "http://www.example" -> "http://www.example/"
+		if (strpos($url, '/', strpos($url, ':') + 3) === false) {
+			$url .= '/';
+		}
+
+		if ($url != "http:///")
+			return $url;
+		else
+			return '';
+	}
+
+	function validate_feed_url($url) {
+		$parts = parse_url($url);
+
+		return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
+
+	}
+
+	function get_article_enclosures($id) {
+
+		$query = "SELECT * FROM ttrss_enclosures
+			WHERE post_id = '$id' AND content_url != ''";
+
+		$rv = array();
+
+		$result = db_query($query);
+
+		if (db_num_rows($result) > 0) {
+			while ($line = db_fetch_assoc($result)) {
+				array_push($rv, $line);
+			}
+		}
+
+		return $rv;
+	}
+
+	function save_email_address($email) {
+		// FIXME: implement persistent storage of emails
+
+		if (!$_SESSION['stored_emails'])
+			$_SESSION['stored_emails'] = array();
+
+		if (!in_array($email, $_SESSION['stored_emails']))
+			array_push($_SESSION['stored_emails'], $email);
+	}
+
+
+	function get_feed_access_key($feed_id, $is_cat, $owner_uid = false) {
+
+		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
+
+		$sql_is_cat = bool_to_sql_bool($is_cat);
+
+		$result = db_query("SELECT access_key FROM ttrss_access_keys
+			WHERE feed_id = '$feed_id'	AND is_cat = $sql_is_cat
+			AND owner_uid = " . $owner_uid);
+
+		if (db_num_rows($result) == 1) {
+			return db_fetch_result($result, 0, "access_key");
+		} else {
+			$key = db_escape_string(uniqid(base_convert(rand(), 10, 36)));
+
+			$result = db_query("INSERT INTO ttrss_access_keys
+				(access_key, feed_id, is_cat, owner_uid)
+				VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
+
+			return $key;
+		}
+		return false;
+	}
+
+	function get_feeds_from_html($url, $content)
+	{
+		$url     = fix_url($url);
+		$baseUrl = substr($url, 0, strrpos($url, '/') + 1);
+
+		libxml_use_internal_errors(true);
+
+		$doc = new DOMDocument();
+		$doc->loadHTML($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"]');
+		$feedUrls = array();
+		foreach ($entries as $entry) {
+			if ($entry->hasAttribute('href')) {
+				$title = $entry->getAttribute('title');
+				if ($title == '') {
+					$title = $entry->getAttribute('type');
+				}
+				$feedUrl = rewrite_relative_url(
+					$baseUrl, $entry->getAttribute('href')
+				);
+				$feedUrls[$feedUrl] = $title;
+			}
+		}
+		return $feedUrls;
+	}
+
+	function is_html($content) {
+		return preg_match("/<html|DOCTYPE html/i", substr($content, 0, 20)) !== 0;
+	}
+
+	function url_is_html($url, $login = false, $pass = false) {
+		return is_html(fetch_file_contents($url, false, $login, $pass));
+	}
+
+	function print_label_select($name, $value, $attributes = "") {
+
+		$result = db_query("SELECT caption FROM ttrss_labels2
+			WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
+
+		print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
+			"\" $attributes onchange=\"labelSelectOnChange(this)\" >";
+
+		while ($line = db_fetch_assoc($result)) {
+
+			$issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
+
+			print "<option value=\"".htmlspecialchars($line["caption"])."\"
+				$issel>" . htmlspecialchars($line["caption"]) . "</option>";
+
+		}
+
+#		print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
+
+		print "</select>";
+
+
+	}
+
+	function format_article_enclosures($id, $always_display_enclosures,
+					$article_content, $hide_images = false) {
+
+		$result = get_article_enclosures($id);
+		$rv = '';
+
+		if (count($result) > 0) {
+
+			$entries_html = array();
+			$entries = array();
+			$entries_inline = array();
+
+			foreach ($result as $line) {
+
+				$url = $line["content_url"];
+				$ctype = $line["content_type"];
+				$title = $line["title"];
+
+				if (!$ctype) $ctype = __("unknown type");
+
+				$filename = substr($url, strrpos($url, "/")+1);
+
+				$player = format_inline_player($url, $ctype);
+
+				if ($player) array_push($entries_inline, $player);
+
+#				$entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
+#					$filename . " (" . $ctype . ")" . "</a>";
+
+				$entry = "<div onclick=\"window.open('".htmlspecialchars($url)."')\"
+					dojoType=\"dijit.MenuItem\">$filename ($ctype)</div>";
+
+				array_push($entries_html, $entry);
+
+				$entry = array();
+
+				$entry["type"] = $ctype;
+				$entry["filename"] = $filename;
+				$entry["url"] = $url;
+				$entry["title"] = $title;
+
+				array_push($entries, $entry);
+			}
+
+			if ($_SESSION['uid'] && !get_pref("STRIP_IMAGES") && !$_SESSION["bw_limit"]) {
+				if ($always_display_enclosures ||
+							!preg_match("/<img/i", $article_content)) {
+
+					foreach ($entries as $entry) {
+
+						if (preg_match("/image/", $entry["type"]) ||
+								preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
+
+								if (!$hide_images) {
+									$rv .= "<p><img
+									alt=\"".htmlspecialchars($entry["filename"])."\"
+									src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
+								} else {
+									$rv .= "<p><a target=\"_blank\"
+									href=\"".htmlspecialchars($entry["url"])."\"
+									>" .htmlspecialchars($entry["url"]) . "</a></p>";
+								}
+
+								if ($entry['title']) {
+									$rv.= "<div class=\"enclosure_title\">${entry['title']}</div>";
+								}
+						}
+					}
+				}
+			}
+
+			if (count($entries_inline) > 0) {
+				$rv .= "<hr clear='both'/>";
+				foreach ($entries_inline as $entry) { $rv .= $entry; };
+				$rv .= "<hr clear='both'/>";
+			}
+
+			$rv .= "<select class=\"attachments\" onchange=\"openSelectedAttachment(this)\">".
+				"<option value=''>" . __('Attachments')."</option>";
+
+			foreach ($entries as $entry) {
+				if ($entry["title"])
+					$title = "&mdash; " . truncate_string($entry["title"], 30);
+				else
+					$title = "";
+
+				$rv .= "<option value=\"".htmlspecialchars($entry["url"])."\">" . htmlspecialchars($entry["filename"]) . "$title</option>";
+
+			};
+
+			$rv .= "</select>";
+		}
+
+		return $rv;
+	}
+
+	function getLastArticleId() {
+		$result = db_query("SELECT MAX(ref_id) AS id FROM ttrss_user_entries
+			WHERE owner_uid = " . $_SESSION["uid"]);
+
+		if (db_num_rows($result) == 1) {
+			return db_fetch_result($result, 0, "id");
+		} else {
+			return -1;
+		}
+	}
+
+	function build_url($parts) {
+		return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
+	}
+
+	/**
+	 * Converts a (possibly) relative URL to a absolute one.
+	 *
+	 * @param string $url     Base URL (i.e. from where the document is)
+	 * @param string $rel_url Possibly relative URL in the document
+	 *
+	 * @return string Absolute URL
+	 */
+	function rewrite_relative_url($url, $rel_url) {
+		if (strpos($rel_url, ":") !== false) {
+			return $rel_url;
+		} else if (strpos($rel_url, "://") !== false) {
+			return $rel_url;
+		} else if (strpos($rel_url, "//") === 0) {
+			# protocol-relative URL (rare but they exist)
+			return $rel_url;
+		} else if (strpos($rel_url, "/") === 0)
+		{
+			$parts = parse_url($url);
+			$parts['path'] = $rel_url;
+
+			return build_url($parts);
+
+		} else {
+			$parts = parse_url($url);
+			if (!isset($parts['path'])) {
+				$parts['path'] = '/';
+			}
+			$dir = $parts['path'];
+			if (substr($dir, -1) !== '/') {
+				$dir = dirname($parts['path']);
+				$dir !== '/' && $dir .= '/';
+			}
+			$parts['path'] = $dir . $rel_url;
+
+			return build_url($parts);
+		}
+	}
+
+	function sphinx_search($query, $offset = 0, $limit = 30) {
+		require_once 'lib/sphinxapi.php';
+
+		$sphinxClient = new SphinxClient();
+
+		$sphinxpair = explode(":", SPHINX_SERVER, 2);
+
+		$sphinxClient->SetServer($sphinxpair[0], (int)$sphinxpair[1]);
+		$sphinxClient->SetConnectTimeout(1);
+
+		$sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
+			'feed_title' => 20));
+
+		$sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
+		$sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
+		$sphinxClient->SetLimits($offset, $limit, 1000);
+		$sphinxClient->SetArrayResult(false);
+		$sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
+
+		$result = $sphinxClient->Query($query, SPHINX_INDEX);
+
+		$ids = array();
+
+		if (is_array($result['matches'])) {
+			foreach (array_keys($result['matches']) as $int_id) {
+				$ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
+				array_push($ids, $ref_id);
+			}
+		}
+
+		return $ids;
+	}
+
+	function cleanup_tags($days = 14, $limit = 1000) {
+
+		if (DB_TYPE == "pgsql") {
+			$interval_query = "date_updated < NOW() - INTERVAL '$days days'";
+		} else if (DB_TYPE == "mysql") {
+			$interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
+		}
+
+		$tags_deleted = 0;
+
+		while ($limit > 0) {
+			$limit_part = 500;
+
+			$query = "SELECT ttrss_tags.id AS id
+				FROM ttrss_tags, ttrss_user_entries, ttrss_entries
+				WHERE post_int_id = int_id AND $interval_query AND
+				ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
+
+			$result = db_query($query);
+
+			$ids = array();
+
+			while ($line = db_fetch_assoc($result)) {
+				array_push($ids, $line['id']);
+			}
+
+			if (count($ids) > 0) {
+				$ids = join(",", $ids);
+
+				$tmp_result = db_query("DELETE FROM ttrss_tags WHERE id IN ($ids)");
+				$tags_deleted += db_affected_rows($tmp_result);
+			} else {
+				break;
+			}
+
+			$limit -= $limit_part;
+		}
+
+		return $tags_deleted;
+	}
+
+	function print_user_stylesheet() {
+		$value = get_pref('USER_STYLESHEET');
+
+		if ($value) {
+			print "<style type=\"text/css\">";
+			print str_replace("<br/>", "\n", $value);
+			print "</style>";
+		}
+
+	}
+
+	function filter_to_sql($filter, $owner_uid) {
+		$query = array();
+
+		if (DB_TYPE == "pgsql")
+			$reg_qpart = "~";
+		else
+			$reg_qpart = "REGEXP";
+
+		foreach ($filter["rules"] AS $rule) {
+			$rule['reg_exp'] = str_replace('/', '\/', $rule["reg_exp"]);
+			$regexp_valid = preg_match('/' . $rule['reg_exp'] . '/',
+				$rule['reg_exp']) !== FALSE;
+
+			if ($regexp_valid) {
+
+				$rule['reg_exp'] = db_escape_string($rule['reg_exp']);
+
+					switch ($rule["type"]) {
+					case "title":
+						$qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
+							$rule['reg_exp'] . "')";
+						break;
+					case "content":
+						$qpart = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
+							$rule['reg_exp'] . "')";
+						break;
+					case "both":
+						$qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
+							$rule['reg_exp'] . "') OR LOWER(" .
+							"ttrss_entries.content) $reg_qpart LOWER('" . $rule['reg_exp'] . "')";
+						break;
+					case "tag":
+						$qpart = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
+							$rule['reg_exp'] . "')";
+						break;
+					case "link":
+						$qpart = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
+							$rule['reg_exp'] . "')";
+						break;
+					case "author":
+						$qpart = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
+							$rule['reg_exp'] . "')";
+						break;
+				}
+
+				if (isset($rule['inverse'])) $qpart = "NOT ($qpart)";
+
+				if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) {
+					$qpart .= " AND feed_id = " . db_escape_string($rule["feed_id"]);
+				}
+
+				if (isset($rule["cat_id"])) {
+
+					if ($rule["cat_id"] > 0) {
+						$children = getChildCategories($rule["cat_id"], $owner_uid);
+						array_push($children, $rule["cat_id"]);
+
+						$children = join(",", $children);
+
+						$cat_qpart = "cat_id IN ($children)";
+					} else {
+						$cat_qpart = "cat_id IS NULL";
+					}
+
+					$qpart .= " AND $cat_qpart";
+				}
+
+				$qpart .= " AND feed_id IS NOT NULL";
+
+				array_push($query, "($qpart)");
+
+			}
+		}
+
+		if (count($query) > 0) {
+			$fullquery = "(" . join($filter["match_any_rule"] ? "OR" : "AND", $query) . ")";
+		} else {
+			$fullquery = "(false)";
+		}
+
+		if ($filter['inverse']) $fullquery = "(NOT $fullquery)";
+
+		return $fullquery;
+	}
+
+	if (!function_exists('gzdecode')) {
+		function gzdecode($string) { // no support for 2nd argument
+			return file_get_contents('compress.zlib://data:who/cares;base64,'.
+				base64_encode($string));
+		}
+	}
+
+	function get_random_bytes($length) {
+		if (function_exists('openssl_random_pseudo_bytes')) {
+			return openssl_random_pseudo_bytes($length);
+		} else {
+			$output = "";
+
+			for ($i = 0; $i < $length; $i++)
+				$output .= chr(mt_rand(0, 255));
+
+			return $output;
+		}
+	}
+
+	function read_stdin() {
+		$fp = fopen("php://stdin", "r");
+
+		if ($fp) {
+			$line = trim(fgets($fp));
+			fclose($fp);
+			return $line;
+		}
+
+		return null;
+	}
+
+	function tmpdirname($path, $prefix) {
+		// Use PHP's tmpfile function to create a temporary
+		// directory name. Delete the file and keep the name.
+		$tempname = tempnam($path,$prefix);
+		if (!$tempname)
+			return false;
+
+		if (!unlink($tempname))
+			return false;
+
+       return $tempname;
+	}
+
+	function getFeedCategory($feed) {
+		$result = db_query("SELECT cat_id FROM ttrss_feeds
+			WHERE id = '$feed'");
+
+		if (db_num_rows($result) > 0) {
+			return db_fetch_result($result, 0, "cat_id");
+		} else {
+			return false;
+		}
+
+	}
+
+	function implements_interface($class, $interface) {
+		return in_array($interface, class_implements($class));
+	}
+
+	function geturl($url, $depth = 0){
+
+		if ($depth == 20) return $url;
+
+		if (!function_exists('curl_init'))
+			return user_error('CURL Must be installed for geturl function to work. Ask your host to enable it or uncomment extension=php_curl.dll in php.ini', E_USER_ERROR);
+
+		$curl = curl_init();
+		$header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
+		$header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
+		$header[] = "Cache-Control: max-age=0";
+		$header[] = "Connection: keep-alive";
+		$header[] = "Keep-Alive: 300";
+		$header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
+		$header[] = "Accept-Language: en-us,en;q=0.5";
+		$header[] = "Pragma: ";
+
+		curl_setopt($curl, CURLOPT_URL, $url);
+		curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0 Firefox/5.0');
+		curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
+		curl_setopt($curl, CURLOPT_HEADER, true);
+		curl_setopt($curl, CURLOPT_REFERER, $url);
+		curl_setopt($curl, CURLOPT_ENCODING, 'gzip,deflate');
+		curl_setopt($curl, CURLOPT_AUTOREFERER, true);
+		curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
+		//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); //CURLOPT_FOLLOWLOCATION Disabled...
+		curl_setopt($curl, CURLOPT_TIMEOUT, 60);
+		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
+
+		if (defined('_CURL_HTTP_PROXY')) {
+			curl_setopt($curl, CURLOPT_PROXY, _CURL_HTTP_PROXY);
+		}
+
+		if ((OPENSSL_VERSION_NUMBER >= 0x0090808f) && (OPENSSL_VERSION_NUMBER < 0x10000000)) {
+			curl_setopt($curl, CURLOPT_SSLVERSION, 3);
+		}
+
+		$html = curl_exec($curl);
+
+		$status = curl_getinfo($curl);
+
+		if($status['http_code']!=200){
+			if($status['http_code'] == 301 || $status['http_code'] == 302) {
+				curl_close($curl);
+				list($header) = explode("\r\n\r\n", $html, 2);
+				$matches = array();
+				preg_match("/(Location:|URI:)[^(\n)]*/", $header, $matches);
+				$url = trim(str_replace($matches[1],"",$matches[0]));
+				$url_parsed = parse_url($url);
+				return (isset($url_parsed))? geturl($url, $depth + 1):'';
+			}
+
+			global $fetch_last_error;
+
+			$fetch_last_error = curl_errno($curl) . " " . curl_error($curl);
+			curl_close($curl);
+
+#			$oline='';
+#			foreach($status as $key=>$eline){$oline.='['.$key.']'.$eline.' ';}
+#			$line =$oline." \r\n ".$url."\r\n-----------------\r\n";
+#			$handle = @fopen('./curl.error.log', 'a');
+#			fwrite($handle, $line);
+			return FALSE;
+		}
+		curl_close($curl);
+		return $url;
+	}
+
+	function get_minified_js($files) {
+		require_once 'lib/jshrink/Minifier.php';
+
+		$rv = '';
+
+		foreach ($files as $js) {
+			if (!isset($_GET['debug'])) {
+				$cached_file = CACHE_DIR . "/js/".basename($js).".js";
+
+				if (file_exists($cached_file) &&
+						is_readable($cached_file) &&
+						filemtime($cached_file) >= filemtime("js/$js.js")) {
+
+					$rv .= file_get_contents($cached_file);
+
+				} else {
+					$minified = JShrink\Minifier::minify(file_get_contents("js/$js.js"));
+					file_put_contents($cached_file, $minified);
+					$rv .= $minified;
+				}
+			} else {
+				$rv .= file_get_contents("js/$js.js");
+			}
+		}
+
+		return $rv;
+	}
+
+	function stylesheet_tag($filename) {
+		$timestamp = filemtime($filename);
+
+		return "<link rel=\"stylesheet\" type=\"text/css\" href=\"$filename?$timestamp\"/>\n";
+	}
+
+	function javascript_tag($filename) {
+		$query = "";
+
+		if (!(strpos($filename, "?") === FALSE)) {
+			$query = substr($filename, strpos($filename, "?")+1);
+			$filename = substr($filename, 0, strpos($filename, "?"));
+		}
+
+		$timestamp = filemtime($filename);
+
+		if ($query) $timestamp .= "&$query";
+
+		return "<script type=\"text/javascript\" charset=\"utf-8\" src=\"$filename?$timestamp\"></script>\n";
+	}
+
+	function calculate_dep_timestamp() {
+		$files = array_merge(glob("js/*.js"), glob("css/*.css"));
+
+		$max_ts = -1;
+
+		foreach ($files as $file) {
+			if (filemtime($file) > $max_ts) $max_ts = filemtime($file);
+		}
+
+		return $max_ts;
+	}
+
+	function T_js_decl($s1, $s2) {
+		if ($s1 && $s2) {
+			$s1 = preg_replace("/\n/", "", $s1);
+			$s2 = preg_replace("/\n/", "", $s2);
+
+			$s1 = preg_replace("/\"/", "\\\"", $s1);
+			$s2 = preg_replace("/\"/", "\\\"", $s2);
+
+			return "T_messages[\"$s1\"] = \"$s2\";\n";
+		}
+	}
+
+	function init_js_translations() {
+
+	print 'var T_messages = new Object();
+
+		function __(msg) {
+			if (T_messages[msg]) {
+				return T_messages[msg];
+			} else {
+				return msg;
+			}
+		}
+
+		function ngettext(msg1, msg2, n) {
+			return __((parseInt(n) > 1) ? msg2 : msg1);
+		}';
+
+		$l10n = _get_reader();
+
+		for ($i = 0; $i < $l10n->total; $i++) {
+			$orig = $l10n->get_original_string($i);
+			if(strpos($orig, "\000") !== FALSE) { // Plural forms
+				$key = explode(chr(0), $orig);
+				print T_js_decl($key[0], _ngettext($key[0], $key[1], 1)); // Singular
+				print T_js_decl($key[1], _ngettext($key[0], $key[1], 2)); // Plural
+			} else {
+				$translation = __($orig);
+				print T_js_decl($orig, $translation);
+			}
+		}
+	}
+
+	function label_to_feed_id($label) {
+		return LABEL_BASE_INDEX - 1 - abs($label);
+	}
+
+	function feed_to_label_id($feed) {
+		return LABEL_BASE_INDEX - 1 + abs($feed);
+	}
+
+	function format_libxml_error($error) {
+		return T_sprintf("LibXML error %s at line %d (column %d): %s",
+				$error->code, $error->line, $error->column,
+				$error->message);
+	}
+?>
-- 
2.39.2