"Detect automatically",
					"ca_CA" => "Català",
					"cs_CZ" => "Česky",
					"en_US" => "English",
					"es_ES" => "Español",
					"de_DE" => "Deutsch",
					"fr_FR" => "Français",
					"hu_HU" => "Magyar (Hungarian)",
					"it_IT" => "Italiano",
					"ja_JP" => "日本語 (Japanese)",
					"lv_LV" => "Latviešu",
					"nb_NO" => "Norwegian bokmål",
					"nl_NL" => "Dutch",
					"pl_PL" => "Polski",
					"ru_RU" => "Русский",
					"pt_BR" => "Portuguese/Brazil",
					"zh_CN" => "Simplified Chinese");
		return $tr;
	}
	require_once "lib/accept-to-gettext.php";
	require_once "lib/gettext/gettext.inc";
	function startup_gettext() {
		# Get locale from Accept-Language header
		$lang = al2gt(array_keys(get_translations()), "text/html");
		if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
			$lang = _TRANSLATION_OVERRIDE_DEFAULT;
		}
		if ($_SESSION["language"] && $_SESSION["language"] != "auto") {
			$lang = $_SESSION["language"];
		}
		if ($lang) {
			if (defined('LC_MESSAGES')) {
				_setlocale(LC_MESSAGES, $lang);
			} else if (defined('LC_ALL')) {
				_setlocale(LC_ALL, $lang);
			}
			_bindtextdomain("messages", "locale");
			_textdomain("messages");
			_bind_textdomain_codeset("messages", "UTF-8");
		}
	}
	startup_gettext();
	require_once 'db-prefs.php';
	require_once 'version.php';
	require_once 'ccache.php';
	require_once 'labels.php';
	define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
	ini_set('user_agent', SELF_USER_AGENT);
	require_once 'lib/pubsubhubbub/publisher.php';
	$tz_offset = -1;
	$utc_tz = new DateTimeZone('UTC');
	$schema_version = false;
	/**
	 * Print a timestamped debug message.
	 *
	 * @param string $msg The debug message.
	 * @return void
	 */
	function _debug($msg) {
		$ts = strftime("%H:%M:%S", time());
		if (function_exists('posix_getpid')) {
			$ts = "$ts/" . posix_getpid();
		}
		if (!(defined('QUIET') && QUIET)) {
			print "[$ts] $msg\n";
		}
		if (defined('LOGFILE'))  {
			$fp = fopen(LOGFILE, 'a+');
			if ($fp) {
				fputs($fp, "[$ts] $msg\n");
				fclose($fp);
			}
		}
	} // function _debug
	/**
	 * Purge a feed old posts.
	 *
	 * @param mixed $link A database connection.
	 * @param mixed $feed_id The id of the purged feed.
	 * @param mixed $purge_interval Olderness of purged posts.
	 * @param boolean $debug Set to True to enable the debug. False by default.
	 * @access public
	 * @return void
	 */
	function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
		if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
		$rows = -1;
		$result = db_query($link,
			"SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
		$owner_uid = false;
		if (db_num_rows($result) == 1) {
			$owner_uid = db_fetch_result($result, 0, "owner_uid");
		}
		if ($purge_interval == -1 || !$purge_interval) {
			if ($owner_uid) {
				ccache_update($link, $feed_id, $owner_uid);
			}
			return;
		}
		if (!$owner_uid) return;
		if (FORCE_ARTICLE_PURGE == 0) {
			$purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
				$owner_uid, false);
		} else {
			$purge_unread = true;
			$purge_interval = FORCE_ARTICLE_PURGE;
		}
		if (!$purge_unread) $query_limit = " unread = false AND ";
		if (DB_TYPE == "pgsql") {
			$pg_version = get_pgsql_version($link);
			if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
				$result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
					ttrss_entries.id = ref_id AND
					marked = false AND
					feed_id = '$feed_id' AND
					$query_limit
					ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
			} else {
				$result = db_query($link, "DELETE FROM ttrss_user_entries
					USING ttrss_entries
					WHERE ttrss_entries.id = ref_id AND
					marked = false AND
					feed_id = '$feed_id' AND
					$query_limit
					ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
			}
			$rows = pg_affected_rows($result);
		} else {
/*			$result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
				marked = false AND feed_id = '$feed_id' AND
				(SELECT date_updated FROM ttrss_entries WHERE
					id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
			$result = db_query($link, "DELETE FROM ttrss_user_entries
				USING ttrss_user_entries, ttrss_entries
				WHERE ttrss_entries.id = ref_id AND
				marked = false AND
				feed_id = '$feed_id' AND
				$query_limit
				ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
			$rows = mysql_affected_rows($link);
		}
		ccache_update($link, $feed_id, $owner_uid);
		if ($debug) {
			_debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
		}
		return $rows;
	} // function purge_feed
	function feed_purge_interval($link, $feed_id) {
		$result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
			WHERE id = '$feed_id'");
		if (db_num_rows($result) == 1) {
			$purge_interval = db_fetch_result($result, 0, "purge_interval");
			$owner_uid = db_fetch_result($result, 0, "owner_uid");
			if ($purge_interval == 0) $purge_interval = get_pref($link,
				'PURGE_OLD_DAYS', $owner_uid);
			return $purge_interval;
		} else {
			return -1;
		}
	}
	function purge_orphans($link, $do_output = false) {
		// purge orphaned posts in main content table
		$result = db_query($link, "DELETE FROM ttrss_entries WHERE
			(SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
		if ($do_output) {
			$rows = db_affected_rows($link, $result);
			_debug("Purged $rows orphaned posts.");
		}
	}
	function get_feed_update_interval($link, $feed_id) {
		$result = db_query($link, "SELECT owner_uid, update_interval FROM
			ttrss_feeds WHERE id = '$feed_id'");
		if (db_num_rows($result) == 1) {
			$update_interval = db_fetch_result($result, 0, "update_interval");
			$owner_uid = db_fetch_result($result, 0, "owner_uid");
			if ($update_interval != 0) {
				return $update_interval;
			} else {
				return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
			}
		} else {
			return -1;
		}
	}
	function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false, $timeout = false) {
		global $fetch_last_error;
		if (function_exists('curl_init') && !ini_get("open_basedir")) {
			if (ini_get("safe_mode")) {
				$ch = curl_init(geturl($url));
			} else {
				$ch = curl_init($url);
			}
			curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : 15);
			curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : 45);
			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode"));
			curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
			curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
			curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
			curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
			curl_setopt($ch, CURLOPT_ENCODING , "gzip");
			curl_setopt($ch, CURLOPT_REFERER, $url);
			if ($post_query) {
				curl_setopt($ch, CURLOPT_POST, true);
				curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
			}
			if ($login && $pass)
				curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
			$contents = @curl_exec($ch);
			if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
				curl_setopt($ch, CURLOPT_ENCODING, 'none');
				$contents = @curl_exec($ch);
			}
			if ($contents === false) {
				$fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
				curl_close($ch);
				return false;
			}
			$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
			$content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
			if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
				if (curl_errno($ch) != 0) {
					$fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
				} else {
					$fetch_last_error = "HTTP Code: $http_code";
				}
				curl_close($ch);
				return false;
			}
			curl_close($ch);
			return $contents;
		} else {
			if ($login && $pass){
				$url_parts = array();
				preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
				$pass = urlencode($pass);
				if ($url_parts[1] && $url_parts[2]) {
					$url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
				}
			}
			$data = @file_get_contents($url);
			@$gzdecoded = gzdecode($data);
			if ($gzdecoded) $data = $gzdecoded;
			if (!$data && function_exists('error_get_last')) {
				$error = error_get_last();
				$fetch_last_error = $error["message"];
			}
			return $data;
		}
	}
	/**
	 * Try to determine the favicon URL for a feed.
	 * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
	 * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
	 *
	 * @param string $url A feed or page URL
	 * @access public
	 * @return mixed The favicon URL, or false if none was found.
	 */
	function get_favicon_url($url) {
		$favicon_url = false;
		if ($html = @fetch_file_contents($url)) {
			libxml_use_internal_errors(true);
			$doc = new DOMDocument();
			$doc->loadHTML($html);
			$xpath = new DOMXPath($doc);
			$base = $xpath->query('/html/head/base');
			foreach ($base as $b) {
				$url = $b->getAttribute("href");
				break;
			}
			$entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
			if (count($entries) > 0) {
				foreach ($entries as $entry) {
					$favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
					break;
				}
			}
		}
		if (!$favicon_url)
			$favicon_url = rewrite_relative_url($url, "/favicon.ico");
		return $favicon_url;
	} // function get_favicon_url
	function check_feed_favicon($site_url, $feed, $link) {
#		print "FAVICON [$site_url]: $favicon_url\n";
		$icon_file = ICONS_DIR . "/$feed.ico";
		if (!file_exists($icon_file)) {
			$favicon_url = get_favicon_url($site_url);
			if ($favicon_url) {
				// Limiting to "image" type misses those served with text/plain
				$contents = fetch_file_contents($favicon_url); // , "image");
				if ($contents) {
					// Crude image type matching.
					// Patterns gleaned from the file(1) source code.
					if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
						// 0       string  \000\000\001\000        MS Windows icon resource
						//error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
					}
					elseif (preg_match('/^GIF8/', $contents)) {
						// 0       string          GIF8            GIF image data
						//error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
					}
					elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
						// 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
						//error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
					}
					elseif (preg_match('/^\xff\xd8/', $contents)) {
						// 0       beshort         0xffd8          JPEG image data
						//error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
					}
					else {
						//error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
						$contents = "";
					}
				}
				if ($contents) {
					$fp = @fopen($icon_file, "w");
					if ($fp) {
						fwrite($fp, $contents);
						fclose($fp);
						chmod($icon_file, 0644);
					}
				}
			}
		}
	}
	function print_select($id, $default, $values, $attributes = "") {
		print "";
		foreach ($values as $v) {
			if ($v == $default)
				$sel = "selected=\"1\"";
			 else
			 	$sel = "";
			$v = trim($v);
			print "$v ";
		}
		print " ";
	}
	function print_select_hash($id, $default, $values, $attributes = "") {
		print "";
		foreach (array_keys($values) as $v) {
			if ($v == $default)
				$sel = 'selected="selected"';
			 else
			 	$sel = "";
			$v = trim($v);
			print "".$values[$v]." ";
		}
		print " ";
	}
	function print_radio($id, $default, $true_is, $values, $attributes = "") {
		foreach ($values as $v) {
			if ($v == $default)
				$sel = "checked";
			 else
			 	$sel = "";
			if ($v == $true_is) {
				$sel .= " value=\"1\"";
			} else {
				$sel .= " value=\"0\"";
			}
			print "";
			if ($include_all_feeds) {
				$is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
				print "".__('All feeds')." ";
			}
		}
		if (get_pref($link, 'ENABLE_FEED_CATS')) {
			if ($root_id)
				$parent_qpart = "parent_cat = '$root_id'";
			else
				$parent_qpart = "parent_cat IS NULL";
			$result = db_query($link, "SELECT id,title,
				(SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
					c2.parent_cat = ttrss_feed_categories.id) AS num_children
				FROM ttrss_feed_categories
				WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
			while ($line = db_fetch_assoc($result)) {
				for ($i = 0; $i < $nest_level; $i++)
					$line["title"] = " - " . $line["title"];
				$is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
				printf("%s ",
					$line["id"], htmlspecialchars($line["title"]));
				if ($line["num_children"] > 0)
					print_feed_select($link, $id, $default_id, $attributes,
						$include_all_feeds, $line["id"], $nest_level+1);
				$feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
					WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
				while ($fline = db_fetch_assoc($feed_result)) {
					$is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
					$fline["title"] = " + " . $fline["title"];
					for ($i = 0; $i < $nest_level; $i++)
						$fline["title"] = " - " . $fline["title"];
					printf("%s ",
						$fline["id"], htmlspecialchars($fline["title"]));
				}
			}
			if (!$root_id) {
				$is_selected = ($default_id == "CAT:0") ? "selected=\"1\"" : "";
				printf("%s ",
					__("Uncategorized"));
				$feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
					WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
				while ($fline = db_fetch_assoc($feed_result)) {
					$is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
					$fline["title"] = " + " . $fline["title"];
					for ($i = 0; $i < $nest_level; $i++)
						$fline["title"] = " - " . $fline["title"];
					printf("%s ",
						$fline["id"], htmlspecialchars($fline["title"]));
				}
			}
		} else {
			$result = db_query($link, "SELECT id,title FROM ttrss_feeds
				WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
			while ($line = db_fetch_assoc($result)) {
				$is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
				printf("%s ",
					$line["id"], htmlspecialchars($line["title"]));
			}
		}
		if (!$root_id) {
			print " ";
		}
	}
	function print_feed_cat_select($link, $id, $default_id,
		$attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
			if (!$root_id) {
					print "";
			}
			if ($root_id)
				$parent_qpart = "parent_cat = '$root_id'";
			else
				$parent_qpart = "parent_cat IS NULL";
			$result = db_query($link, "SELECT id,title,
				(SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
					c2.parent_cat = ttrss_feed_categories.id) AS num_children
				FROM ttrss_feed_categories
				WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
			while ($line = db_fetch_assoc($result)) {
				if ($line["id"] == $default_id) {
					$is_selected = "selected=\"1\"";
				} else {
					$is_selected = "";
				}
				for ($i = 0; $i < $nest_level; $i++)
					$line["title"] = " - " . $line["title"];
				if ($line["title"])
					printf("%s ",
						$line["id"], htmlspecialchars($line["title"]));
				if ($line["num_children"] > 0)
					print_feed_cat_select($link, $id, $default_id, $attributes,
						$include_all_cats, $line["id"], $nest_level+1);
			}
			if (!$root_id) {
				if ($include_all_cats) {
					if (db_num_rows($result) > 0) {
						print "-------- ";
					}
					if ($default_id == 0) {
						$is_selected = "selected=\"1\"";
					} else {
						$is_selected = "";
					}
					print "".__('Uncategorized')." ";
				}
				print " ";
			}
		}
	function checkbox_to_sql_bool($val) {
		return ($val == "on") ? "true" : "false";
	}
	function getFeedCatTitle($link, $id) {
		if ($id == -1) {
			return __("Special");
		} else if ($id < LABEL_BASE_INDEX) {
			return __("Labels");
		} else if ($id > 0) {
			$result = db_query($link, "SELECT ttrss_feed_categories.title
				FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
					cat_id = ttrss_feed_categories.id");
			if (db_num_rows($result) == 1) {
				return db_fetch_result($result, 0, "title");
			} else {
				return __("Uncategorized");
			}
		} else {
			return "getFeedCatTitle($id) failed";
		}
	}
	function getFeedIcon($id) {
		switch ($id) {
		case 0:
			return "images/archive.png";
			break;
		case -1:
			return "images/mark_set.svg";
			break;
		case -2:
			return "images/pub_set.svg";
			break;
		case -3:
			return "images/fresh.png";
			break;
		case -4:
			return "images/tag.png";
			break;
		case -6:
			return "images/recently_read.png";
			break;
		default:
			if ($id < LABEL_BASE_INDEX) {
				return "images/label.png";
			} else {
				if (file_exists(ICONS_DIR . "/$id.ico"))
					return ICONS_URL . "/$id.ico";
			}
			break;
		}
	}
	function getFeedTitle($link, $id, $cat = false) {
		if ($cat) {
			return getCategoryTitle($link, $id);
		} else if ($id == -1) {
			return __("Starred articles");
		} else if ($id == -2) {
			return __("Published articles");
		} else if ($id == -3) {
			return __("Fresh articles");
		} else if ($id == -4) {
			return __("All articles");
		} else if ($id === 0 || $id === "0") {
			return __("Archived articles");
		} else if ($id == -6) {
			return __("Recently read");
		} else if ($id < LABEL_BASE_INDEX) {
			$label_id = feed_to_label_id($id);
			$result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
			if (db_num_rows($result) == 1) {
				return db_fetch_result($result, 0, "caption");
			} else {
				return "Unknown label ($label_id)";
			}
		} else if (is_numeric($id) && $id > 0) {
			$result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
			if (db_num_rows($result) == 1) {
				return db_fetch_result($result, 0, "title");
			} else {
				return "Unknown feed ($id)";
			}
		} else {
			return $id;
		}
	}
	function make_init_params($link) {
		$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", "DEFAULT_ARTICLE_LIMIT",
			"HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
				 $params[strtolower($param)] = (int) get_pref($link, $param);
		 }
		$params["icons_url"] = ICONS_URL;
		$params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
		$params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
		$params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
		$params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
		$params["bw_limit"] = (int) $_SESSION["bw_limit"];
		$params["label_base_index"] = (int) LABEL_BASE_INDEX;
		$result = db_query($link, "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;
		$params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
		$params["hotkeys"] = get_hotkeys_map($link);
		$params["csrf_token"] = $_SESSION["csrf_token"];
		$params["widescreen"] = (int) $_COOKIE["ttrss_widescreen"];
		$params['simple_update'] = defined('SIMPLE_UPDATE_MODE') && SIMPLE_UPDATE_MODE;
		return $params;
	}
	function get_hotkeys_info($link) {
		$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)"),
				"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_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")),
			__("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"))
			);
		return $hotkeys;
	}
	function get_hotkeys_map($link) {
		$hotkeys = array(
//			"navigation" => array(
				"k" => "next_feed",
				"j" => "prev_feed",
				"n" => "next_article",
				"p" => "prev_article",
				"(38)|up" => "prev_article",
				"(40)|down" => "next_article",
//				"^(38)|Ctrl-up" => "prev_article_noscroll",
//				"^(40)|Ctrl-down" => "next_article_noscroll",
				"(191)|/" => "search_dialog",
//			"article" => array(
				"s" => "toggle_mark",
				"*s" => "toggle_publ",
				"u" => "toggle_unread",
				"*t" => "edit_tags",
				"*d" => "dismiss_selected",
				"*x" => "dismiss_read",
				"o" => "open_in_new_window",
				"c p" => "catchup_below",
				"c n" => "catchup_above",
				"*n" => "article_scroll_down",
				"*p" => "article_scroll_up",
				"*(38)|Shift+up" => "article_scroll_up",
				"*(40)|Shift+down" => "article_scroll_down",
				"a *w" => "toggle_widescreen",
				"a e" => "toggle_embed_original",
				"e" => "email_article",
				"a q" => "close_article",
//			"article_selection" => array(
				"a a" => "select_all",
				"a u" => "select_unread",
				"a *u" => "select_marked",
				"a p" => "select_published",
				"a i" => "select_invert",
				"a n" => "select_none",
//			"feed" => array(
				"f r" => "feed_refresh",
				"f a" => "feed_unhide_read",
				"f s" => "feed_subscribe",
				"f e" => "feed_edit",
				"f q" => "feed_catchup",
				"f x" => "feed_reverse",
				"f *d" => "feed_debug_update",
				"f *c" => "toggle_combined_mode",
				"*q" => "catchup_all",
				"x" => "cat_toggle_collapse",
//			"goto" => array(
				"g a" => "goto_all",
				"g f" => "goto_fresh",
				"g s" => "goto_marked",
				"g p" => "goto_published",
				"g t" => "goto_tagcloud",
				"g *p" => "goto_prefs",
//			"other" => array(
				"(9)|Tab" => "select_article_cursor", // tab
				"c l" => "create_label",
				"c f" => "create_filter",
				"c s" => "collapse_sidebar",
				"^(191)|Ctrl+/" => "help_dialog",
			);
		if (get_pref($link, 'COMBINED_DISPLAY_MODE')) {
			$hotkeys["^(38)|Ctrl-up"] = "prev_article_noscroll";
			$hotkeys["^(40)|Ctrl-down"] = "next_article_noscroll";
		}
		global $pluginhost;
		foreach ($pluginhost->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, $hotkeys);
	}
	function make_runtime_info($link) {
		$data = array();
		$result = db_query($link, "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;
		$data['last_article_id'] = getLastArticleId($link);
		$data['cdm_expanded'] = get_pref($link, '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()) {
				$new_version_details = @check_for_update($link);
				$data['new_version_available'] = (int) ($new_version_details != false);
				$_SESSION["last_version_check"] = time();
				$_SESSION["version_data"] = $new_version_details;
		}
		return $data;
	}
	function search_to_sql($link, $search) {
		$search_query_part = "";
		$keywords = explode(" ", $search);
		$query_keywords = array();
		foreach ($keywords as $k) {
			if (strpos($k, "-") === 0) {
				$k = substr($k, 1);
				$not = "NOT";
			} else {
				$not = "";
			}
			$commandpair = explode(":", mb_strtolower($k), 2);
			if ($commandpair[0] == "note" && $commandpair[1]) {
				if ($commandpair[1] == "true")
					array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
				else
					array_push($query_keywords, "($not (note IS NULL OR note = ''))");
			} else if ($commandpair[0] == "star" && $commandpair[1]) {
				if ($commandpair[1] == "true")
					array_push($query_keywords, "($not (marked = true))");
				else
					array_push($query_keywords, "($not (marked = false))");
			} else if ($commandpair[0] == "pub" && $commandpair[1]) {
				if ($commandpair[1] == "true")
					array_push($query_keywords, "($not (published = true))");
				else
					array_push($query_keywords, "($not (published = false))");
			} else if (strpos($k, "@") === 0) {
				$user_tz_string = get_pref($link, '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%'))");
			}
		}
		$search_query_part = implode("AND", $query_keywords);
		return $search_query_part;
	}
	function getParentCategories($link, $cat, $owner_uid) {
		$rv = array();
		$result = db_query($link, "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($link, $line["parent_cat"], $owner_uid));
		}
		return $rv;
	}
	function getChildCategories($link, $cat, $owner_uid) {
		$rv = array();
		$result = db_query($link, "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($link, $line["id"], $owner_uid));
		}
		return $rv;
	}
	function queryFeedHeadlines($link, $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, $ignore_vfeed_group = false) {
		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
		$ext_tables_part = "";
			if ($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 {
					$search_query_part = search_to_sql($link, $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";
				$filter_query_part = filter_to_sql($link, $filter, $owner_uid);
				// Try to check if SQL regexp implementation chokes on a valid regexp
				$result = db_query($link, "SELECT true AS true_val FROM ttrss_entries,
					ttrss_user_entries, ttrss_feeds, ttrss_feed_categories
					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) {
					$unread = getFeedUnread($link, $feed, $cat_view);
					if ($cat_view && $feed > 0 && $include_children)
						$unread += getCategoryChildrenUnread($link, $feed);
					if ($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) {
						$subcats = getChildCategories($link, $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
							$subcats = getChildCategories($link, $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 == -3) { // fresh virtual feed
				$query_strategy_part = "unread = true AND score >= 0";
				$intl = get_pref($link, "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
				$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 {
				$query_strategy_part = "true";
			}
			if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
				$date_sort_field = "updated";
			} else {
				$date_sort_field = "date_entered";
			}
			$order_by = "$date_sort_field DESC, updated DESC";
			if ($view_mode == "unread_first") {
				$order_by = "unread DESC, $order_by";
			}
			if ($override_order) {
				$order_by = $override_order;
			}
			$feed_title = "";
			if ($search) {
				$feed_title = T_sprintf("Search results: %s", $search);
			} else {
				if ($cat_view) {
					$feed_title = getCategoryTitle($link, $feed);
				} else {
					if (is_numeric($feed) && $feed > 0) {
						$result = db_query($link, "SELECT title,site_url,last_error
							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");
					} else {
						$feed_title = getFeedTitle($link, $feed);
					}
				}
			}
			$content_query_part = "content as content_preview, cached_content, ";
			if (is_numeric($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 && !$ignore_vfeed_group && get_pref($link, '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)";
				}
				$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,
						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;
				$result = db_query($link, $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," .
								"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 . "]");
				$result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
			}
			return array($result, $feed_title, $feed_site_url, $last_error);
	}
	function sanitize($link, $str, $force_remove_images = false, $owner = false, $site_url = false) {
		if (!$owner) $owner = $_SESSION["uid"];
		$res = trim($str); if (!$res) return '';
		if (strpos($res, "href=") === false)
			$res = rewrite_urls($res);
		$charset_hack = '
			
			$msg
 ";
	}
	function format_notice($msg, $id = "") {
		global $link;
		return "
			$msg
 ";
	}
	function format_error($msg, $id = "") {
		global $link;
		return "
			$msg
 ";
	}
	function print_notice($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)), $args);
	}
	function format_inline_player($link, $url, $ctype) {
		$entry = "";
		$url = htmlspecialchars($url);
		if (strpos($ctype, "audio/") === 0) {
			if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
				strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
				strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
				$id = 'AUDIO-' . uniqid();
				$entry .= "
					 ";
				$entry .= "".__("Play")." ";
			} else {
				$entry .= "
					 ";
			}
			if ($entry) $entry .= "  " . basename($url) . " ";
			return $entry;
		}
		return "";
/*		$filename = substr($url, strrpos($url, "/")+1);
		$entry .= " " .
			$filename . " (" . $ctype . ")" . " "; */
	}
	function format_article($link, $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 :( */
		$result = db_query($link, "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 "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"]);
				}
				$entry_comments = "$num_comments comments ";
			} else {
				if ($line["comments"] && $line["link"] != $line["comments"]) {
					$entry_comments = "comments ";
				}
			}
			if ($zoom_mode) {
				header("Content-Type: text/html");
				$rv['content'] .= "
						Tiny Tiny RSS - ".$line["title"]." 
						";
			$rv['content'] .= "";
			$rv['content'] .= "
";
				if ($line['note']) {
					$rv['content'] .= format_article_note($id, $line['note'], !$zoom_mode);
				}
			$rv['content'] .= "
";
			$rv['content'] .= "
";
			$rv['content'] .= $line["content"];
			$rv['content'] .= format_article_enclosures($link, $id,
				$always_display_enclosures, $line["content"], $line["hide_images"]);
			$rv['content'] .= "
";
			$rv['content'] .= "
$tag ";
			array_push($formatted_tags, $tag_str);
			$tmp_tags_str = implode(", ", $formatted_tags);
			if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
				break;
			}
		}
		$tags_str = implode(", ", $formatted_tags);
		if ($num_tags < count($tags)) {
			$tags_str .= ", …";
		}
		if ($num_tags == 0) {
			$tags_str = __("no tags");
		}
		return $tags_str;
	}
	function format_article_labels($labels, $id) {
		$labels_str = "";
		foreach ($labels as $l) {
			$labels_str .= sprintf("%s ",
					$l[2], $l[3], $l[1]);
			}
		return $labels_str;
	}
	function format_article_note($id, $note, $allow_edit = true) {
		$str = "
			".
			($allow_edit ? __('(edit note)') : "")."
$note
 ";
		return $str;
	}
	function get_feed_category($link, $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";
		}
		$result = db_query($link,
			"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($result, 0, "id");
		}
	}
	function add_feed_category($link, $feed_cat, $parent_cat_id = false) {
		if (!$feed_cat) return false;
		db_query($link, "BEGIN");
		if ($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";
		}
		$result = db_query($link,
			"SELECT id FROM ttrss_feed_categories
			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
		if (db_num_rows($result) == 0) {
			$result = db_query($link,
				"INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
				VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
			db_query($link, "COMMIT");
			return true;
		}
		return false;
	}
	function getArticleFeed($link, $id) {
		$result = db_query($link, "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' || $parts['scheme'] == 'https');
	}
	function get_article_enclosures($link, $id) {
		$query = "SELECT * FROM ttrss_enclosures
			WHERE post_id = '$id' AND content_url != ''";
		$rv = array();
		$result = db_query($link, $query);
		if (db_num_rows($result) > 0) {
			while ($line = db_fetch_assoc($result)) {
				array_push($rv, $line);
			}
		}
		return $rv;
	}
	function save_email_address($link, $email) {
		// FIXME: implement persistent storage of emails
		if (!$_SESSION['stored_emails'])
			$_SESSION['stored_emails'] = array();
		if (!in_array($email, $_SESSION['stored_emails']))
			array_push($_SESSION['stored_emails'], $email);
	}
	function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
		$sql_is_cat = bool_to_sql_bool($is_cat);
		$result = db_query($link, "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 {
			$key = db_escape_string($link, sha1(uniqid(rand(), true)));
			$result = db_query($link, "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("/";
		while ($line = db_fetch_assoc($result)) {
			$issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
			print "" . htmlspecialchars($line["caption"]) . " ";
		}
#		print "" .__("Add label...") . " ";
		print "";
	}
	function format_article_enclosures($link, $id, $always_display_enclosures,
					$article_content, $hide_images = false) {
		$result = get_article_enclosures($link, $id);
		$rv = '';
		if (count($result) > 0) {
			$entries_html = array();
			$entries = array();
			$entries_inline = array();
			foreach ($result as $line) {
				$url = $line["content_url"];
				$ctype = $line["content_type"];
				if (!$ctype) $ctype = __("unknown type");
				$filename = substr($url, strrpos($url, "/")+1);
				$player = format_inline_player($link, $url, $ctype);
				if ($player) array_push($entries_inline, $player);
#				$entry .= " " .
#					$filename . " (" . $ctype . ")" . " ";
				$entry = "$filename ($ctype)
";
				array_push($entries_html, $entry);
				$entry = array();
				$entry["type"] = $ctype;
				$entry["filename"] = $filename;
				$entry["url"] = $url;
				array_push($entries, $entry);
			}
			if ($_SESSION['uid'] && !get_pref($link, "STRIP_IMAGES") && !$_SESSION["bw_limit"]) {
				if ($always_display_enclosures ||
							!preg_match("/" .htmlspecialchars($entry["url"]) . " 
";
								}
						}
					}
				}
			}
			if (count($entries_inline) > 0) {
				$rv .= "".
				"" . __('Attachments')." ";
			foreach ($entries as $entry) {
				$rv .= "" . htmlspecialchars($entry["filename"]) . " ";
			};
			$rv .= " ";
		}
		return $rv;
	}
	function getLastArticleId($link) {
		$result = db_query($link, "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, "magnet:") === 0) {
			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();
		$sphinxClient->SetServer('localhost', 9312);
		$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 $ids;
	}
	function cleanup_tags($link, $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";
			$result = db_query($link, $query);
			$ids = array();
			while ($line = db_fetch_assoc($result)) {
				array_push($ids, $line['id']);
			}
			if (count($ids) > 0) {
				$ids = join(",", $ids);
				$tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
				$tags_deleted += db_affected_rows($link, $tmp_result);
			} else {
				break;
			}
			$limit -= $limit_part;
		}
		return $tags_deleted;
	}
	function print_user_stylesheet($link) {
		$value = get_pref($link, 'USER_STYLESHEET');
		if ($value) {
			print "";
		}
	}
	function rewrite_urls($html) {
		libxml_use_internal_errors(true);
		$charset_hack = '