X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=classes%2Fpref%2Ffeeds.php;h=d70c1a26add83d7d2e88751c58b4d24946a4e8cc;hb=4a1d122c8758c61955ca8344d6c1017ef80bc62e;hp=c57cccc44e9f17fd2e5ce2fc4ec6e78c364f4a8e;hpb=41694a956d4cbe4da633a967c06908b69e942c17;p=tt-rss.git

diff --git a/classes/pref/feeds.php b/classes/pref/feeds.php
index c57cccc4..d70c1a26 100644
--- a/classes/pref/feeds.php
+++ b/classes/pref/feeds.php
@@ -15,11 +15,11 @@ class Pref_Feeds extends Handler_Protected {
 	}
 
 	function renamecat() {
-		$title = db_escape_string($this->link, $_REQUEST['title']);
-		$id = db_escape_string($this->link, $_REQUEST['id']);
+		$title = $this->dbh->escape_string($_REQUEST['title']);
+		$id = $this->dbh->escape_string($_REQUEST['id']);
 
 		if ($title) {
-			db_query($this->link, "UPDATE ttrss_feed_categories SET
+			$this->dbh->query("UPDATE ttrss_feed_categories SET
 				title = '$title' WHERE id = '$id' AND owner_uid = " . $_SESSION["uid"]);
 		}
 		return;
@@ -36,15 +36,14 @@ class Pref_Feeds extends Handler_Protected {
 
 		// first one is set by API
 		$show_empty_cats = $_REQUEST['force_show_empty'] ||
-			($_REQUEST['mode'] != 2 && !$search &&
-				get_pref($this->link, '_PREFS_SHOW_EMPTY_CATS'));
+			($_REQUEST['mode'] != 2 && !$search);
 
 		$items = array();
 
-		$result = db_query($this->link, "SELECT id, title FROM ttrss_feed_categories
+		$result = $this->dbh->query("SELECT id, title FROM ttrss_feed_categories
 				WHERE owner_uid = " . $_SESSION["uid"] . " AND parent_cat = '$cat_id' ORDER BY order_id, title");
 
-		while ($line = db_fetch_assoc($result)) {
+		while ($line = $this->dbh->fetch_assoc($result)) {
 
 			$cat = array();
 			$cat['id'] = 'CAT:' . $line['id'];
@@ -55,32 +54,36 @@ class Pref_Feeds extends Handler_Protected {
 			$cat['type'] = 'category';
 			$cat['unread'] = 0;
 			$cat['child_unread'] = 0;
+			$cat['auxcounter'] = 0;
+			$cat['parent_id'] = $cat_id;
 
 			$cat['items'] = $this->get_category_items($line['id']);
 
-			$cat['param'] = vsprintf(_ngettext('(%d feed)', '(%d feeds)', count($cat['items'])), count($cat['items']));
+			$num_children = $this->calculate_children_count($cat);
+			$cat['param'] = vsprintf(_ngettext('(%d feed)', '(%d feeds)', $num_children), $num_children);
 
-			if (count($cat['items']) > 0 || $show_empty_cats)
+			if ($num_children > 0 || $show_empty_cats)
 				array_push($items, $cat);
 
 		}
 
-		$feed_result = db_query($this->link, "SELECT id, title, last_error,
+		$feed_result = $this->dbh->query("SELECT id, title, last_error,
 			".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
 			FROM ttrss_feeds
 			WHERE cat_id = '$cat_id' AND owner_uid = ".$_SESSION["uid"].
 			"$search_qpart ORDER BY order_id, title");
 
-		while ($feed_line = db_fetch_assoc($feed_result)) {
+		while ($feed_line = $this->dbh->fetch_assoc($feed_result)) {
 			$feed = array();
 			$feed['id'] = 'FEED:' . $feed_line['id'];
 			$feed['bare_id'] = (int)$feed_line['id'];
+			$feed['auxcounter'] = 0;
 			$feed['name'] = $feed_line['title'];
 			$feed['checkbox'] = false;
 			$feed['unread'] = 0;
 			$feed['error'] = $feed_line['last_error'];
 			$feed['icon'] = getFeedIcon($feed_line['id']);
-			$feed['param'] = make_local_datetime($this->link,
+			$feed['param'] = make_local_datetime(
 				$feed_line['last_updated'], true);
 
 			array_push($items, $feed);
@@ -108,7 +111,7 @@ class Pref_Feeds extends Handler_Protected {
 		$root['items'] = array();
 		$root['type'] = 'category';
 
-		$enable_cats = get_pref($this->link, 'ENABLE_FEED_CATS');
+		$enable_cats = get_pref('ENABLE_FEED_CATS');
 
 		if ($_REQUEST['mode'] == 2) {
 
@@ -124,9 +127,7 @@ class Pref_Feeds extends Handler_Protected {
 
 			/* Plugin feeds for -1 */
 
-			global $pluginhost;
-
-			$feeds = $pluginhost->get_feeds(-1);
+			$feeds = PluginHost::getInstance()->get_feeds(-1);
 
 			if ($feeds) {
 				foreach ($feeds as $feed) {
@@ -135,6 +136,7 @@ class Pref_Feeds extends Handler_Protected {
 					$item = array();
 					$item['id'] = 'FEED:' . $feed_id;
 					$item['bare_id'] = (int)$feed_id;
+					$item['auxcounter'] = 0;
 					$item['name'] = $feed['title'];
 					$item['checkbox'] = false;
 					$item['error'] = '';
@@ -154,18 +156,18 @@ class Pref_Feeds extends Handler_Protected {
 				$root['items'] = array_merge($root['items'], $cat['items']);
 			}
 
-			$result = db_query($this->link, "SELECT * FROM
+			$result = $this->dbh->query("SELECT * FROM
 				ttrss_labels2 WHERE owner_uid = ".$_SESSION['uid']." ORDER by caption");
 
-			if (db_num_rows($result) > 0) {
+			if ($this->dbh->num_rows($result) > 0) {
 
-				if (get_pref($this->link, 'ENABLE_FEED_CATS')) {
+				if (get_pref('ENABLE_FEED_CATS')) {
 					$cat = $this->feedlist_init_cat(-2);
 				} else {
 					$cat['items'] = array();
 				}
 
-				while ($line = db_fetch_assoc($result)) {
+				while ($line = $this->dbh->fetch_assoc($result)) {
 
 					$label_id = label_to_feed_id($line['id']);
 
@@ -187,16 +189,16 @@ class Pref_Feeds extends Handler_Protected {
 
 		if ($enable_cats) {
 			$show_empty_cats = $_REQUEST['force_show_empty'] ||
-				($_REQUEST['mode'] != 2 && !$search &&
-				get_pref($this->link, '_PREFS_SHOW_EMPTY_CATS'));
+				($_REQUEST['mode'] != 2 && !$search);
 
-			$result = db_query($this->link, "SELECT id, title FROM ttrss_feed_categories
+			$result = $this->dbh->query("SELECT id, title FROM ttrss_feed_categories
 				WHERE owner_uid = " . $_SESSION["uid"] . " AND parent_cat IS NULL ORDER BY order_id, title");
 
-			while ($line = db_fetch_assoc($result)) {
+			while ($line = $this->dbh->fetch_assoc($result)) {
 				$cat = array();
 				$cat['id'] = 'CAT:' . $line['id'];
 				$cat['bare_id'] = (int)$line['id'];
+				$cat['auxcounter'] = 0;
 				$cat['name'] = $line['title'];
 				$cat['items'] = array();
 				$cat['checkbox'] = false;
@@ -206,9 +208,10 @@ class Pref_Feeds extends Handler_Protected {
 
 				$cat['items'] = $this->get_category_items($line['id']);
 
-				$cat['param'] = vsprintf(_ngettext('(%d feed)', '(%d feeds)', count($cat['items'])), count($cat['items']));
+				$num_children = $this->calculate_children_count($cat);
+				$cat['param'] = vsprintf(_ngettext('(%d feed)', '(%d feeds)', $num_children), $num_children);
 
-				if (count($cat['items']) > 0 || $show_empty_cats)
+				if ($num_children > 0 || $show_empty_cats)
 					array_push($root['items'], $cat);
 
 				$root['param'] += count($cat['items']);
@@ -219,6 +222,7 @@ class Pref_Feeds extends Handler_Protected {
 			$cat = array();
 			$cat['id'] = 'CAT:0';
 			$cat['bare_id'] = 0;
+			$cat['auxcounter'] = 0;
 			$cat['name'] = __("Uncategorized");
 			$cat['items'] = array();
 			$cat['type'] = 'category';
@@ -226,21 +230,22 @@ class Pref_Feeds extends Handler_Protected {
 			$cat['unread'] = 0;
 			$cat['child_unread'] = 0;
 
-			$feed_result = db_query($this->link, "SELECT id, title,last_error,
+			$feed_result = $this->dbh->query("SELECT id, title,last_error,
 				".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
 				FROM ttrss_feeds
 				WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"].
 				"$search_qpart ORDER BY order_id, title");
 
-			while ($feed_line = db_fetch_assoc($feed_result)) {
+			while ($feed_line = $this->dbh->fetch_assoc($feed_result)) {
 				$feed = array();
 				$feed['id'] = 'FEED:' . $feed_line['id'];
 				$feed['bare_id'] = (int)$feed_line['id'];
+				$feed['auxcounter'] = 0;
 				$feed['name'] = $feed_line['title'];
 				$feed['checkbox'] = false;
 				$feed['error'] = $feed_line['last_error'];
 				$feed['icon'] = getFeedIcon($feed_line['id']);
-				$feed['param'] = make_local_datetime($this->link,
+				$feed['param'] = make_local_datetime(
 					$feed_line['last_updated'], true);
 				$feed['unread'] = 0;
 				$feed['type'] = 'feed';
@@ -253,25 +258,26 @@ class Pref_Feeds extends Handler_Protected {
 			if (count($cat['items']) > 0 || $show_empty_cats)
 				array_push($root['items'], $cat);
 
-			$root['param'] += count($cat['items']);
-			$root['param'] = vsprintf(_ngettext('(%d feed)', '(%d feeds)', count($cat['items'])), count($cat['items']));
+			$num_children = $this->calculate_children_count($root);
+			$root['param'] = vsprintf(_ngettext('(%d feed)', '(%d feeds)', $num_children), $num_children);
 
 		} else {
-			$feed_result = db_query($this->link, "SELECT id, title, last_error,
+			$feed_result = $this->dbh->query("SELECT id, title, last_error,
 				".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
 				FROM ttrss_feeds
 				WHERE owner_uid = ".$_SESSION["uid"].
 				"$search_qpart ORDER BY order_id, title");
 
-			while ($feed_line = db_fetch_assoc($feed_result)) {
+			while ($feed_line = $this->dbh->fetch_assoc($feed_result)) {
 				$feed = array();
 				$feed['id'] = 'FEED:' . $feed_line['id'];
 				$feed['bare_id'] = (int)$feed_line['id'];
+				$feed['auxcounter'] = 0;
 				$feed['name'] = $feed_line['title'];
 				$feed['checkbox'] = false;
 				$feed['error'] = $feed_line['last_error'];
 				$feed['icon'] = getFeedIcon($feed_line['id']);
-				$feed['param'] = make_local_datetime($this->link,
+				$feed['param'] = make_local_datetime(
 					$feed_line['last_updated'], true);
 				$feed['unread'] = 0;
 				$feed['type'] = 'feed';
@@ -296,22 +302,17 @@ class Pref_Feeds extends Handler_Protected {
 	}
 
 	function catsortreset() {
-		db_query($this->link, "UPDATE ttrss_feed_categories
+		$this->dbh->query("UPDATE ttrss_feed_categories
 				SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 		return;
 	}
 
 	function feedsortreset() {
-		db_query($this->link, "UPDATE ttrss_feeds
+		$this->dbh->query("UPDATE ttrss_feeds
 				SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 		return;
 	}
 
-	function togglehiddenfeedcats() {
-		set_pref($this->link, '_PREFS_SHOW_EMPTY_CATS',
-			(get_pref($this->link, '_PREFS_SHOW_EMPTY_CATS') ? 'false' : 'true'));
-	}
-
 	private function process_category_order(&$data_map, $item_id, $parent_id = false, $nest_level = 0) {
 		$debug = isset($_REQUEST["debug"]);
 
@@ -326,12 +327,12 @@ class Pref_Feeds extends Handler_Protected {
 		if ($item_id != 'root') {
 			if ($parent_id && $parent_id != 'root') {
 				$parent_bare_id = substr($parent_id, strpos($parent_id, ':')+1);
-				$parent_qpart = db_escape_string($this->link, $parent_bare_id);
+				$parent_qpart = $this->dbh->escape_string($parent_bare_id);
 			} else {
 				$parent_qpart = 'NULL';
 			}
 
-			db_query($this->link, "UPDATE ttrss_feed_categories
+			$this->dbh->query("UPDATE ttrss_feed_categories
 				SET parent_cat = $parent_qpart WHERE id = '$bare_item_id' AND
 				owner_uid = " . $_SESSION["uid"]);
 		}
@@ -352,12 +353,12 @@ class Pref_Feeds extends Handler_Protected {
 					if (strpos($id, "FEED") === 0) {
 
 						$cat_id = ($item_id != "root") ?
-							db_escape_string($this->link, $bare_item_id) : "NULL";
+							$this->dbh->escape_string($bare_item_id) : "NULL";
 
 						$cat_qpart = ($cat_id != 0) ? "cat_id = '$cat_id'" :
 							"cat_id = NULL";
 
-						db_query($this->link, "UPDATE ttrss_feeds
+						$this->dbh->query("UPDATE ttrss_feeds
 							SET order_id = $order_id, $cat_qpart
 							WHERE id = '$bare_id' AND
 								owner_uid = " . $_SESSION["uid"]);
@@ -367,12 +368,12 @@ class Pref_Feeds extends Handler_Protected {
 							$nest_level+1);
 
 						if ($item_id != 'root') {
-							$parent_qpart = db_escape_string($this->link, $bare_id);
+							$parent_qpart = $this->dbh->escape_string($bare_id);
 						} else {
 							$parent_qpart = 'NULL';
 						}
 
-						db_query($this->link, "UPDATE ttrss_feed_categories
+						$this->dbh->query("UPDATE ttrss_feed_categories
 								SET order_id = '$order_id' WHERE id = '$bare_id' AND
 								owner_uid = " . $_SESSION["uid"]);
 					}
@@ -395,7 +396,7 @@ class Pref_Feeds extends Handler_Protected {
 #		print_r($data['items']);
 
 		if (is_array($data) && is_array($data['items'])) {
-			$cat_order_id = 0;
+#			$cat_order_id = 0;
 
 			$data_map = array();
 			$root_item = false;
@@ -424,7 +425,7 @@ class Pref_Feeds extends Handler_Protected {
 				++$cat_order_id;
 
 				if ($bare_id > 0) {
-					db_query($this->link, "UPDATE ttrss_feed_categories
+					$this->dbh->query("UPDATE ttrss_feed_categories
 						SET order_id = '$cat_order_id' WHERE id = '$bare_id' AND
 						owner_uid = " . $_SESSION["uid"]);
 				}
@@ -441,7 +442,7 @@ class Pref_Feeds extends Handler_Protected {
 						else
 							$cat_query = "cat_id = NULL";
 
-						db_query($this->link, "UPDATE ttrss_feeds
+						$this->dbh->query("UPDATE ttrss_feeds
 							SET order_id = '$feed_order_id',
 							$cat_query
 							WHERE id = '$feed_id' AND
@@ -457,13 +458,16 @@ class Pref_Feeds extends Handler_Protected {
 	}
 
 	function removeicon() {
-		$feed_id = db_escape_string($this->link, $_REQUEST["feed_id"]);
+		$feed_id = $this->dbh->escape_string($_REQUEST["feed_id"]);
 
-		$result = db_query($this->link, "SELECT id FROM ttrss_feeds
+		$result = $this->dbh->query("SELECT id FROM ttrss_feeds
 			WHERE id = '$feed_id' AND owner_uid = ". $_SESSION["uid"]);
 
-		if (db_num_rows($result) != 0) {
+		if ($this->dbh->num_rows($result) != 0) {
 			@unlink(ICONS_DIR . "/$feed_id.ico");
+
+			$this->dbh->query("UPDATE ttrss_feeds SET favicon_avg_color = NULL
+				where id = '$feed_id'");
 		}
 
 		return;
@@ -488,18 +492,23 @@ class Pref_Feeds extends Handler_Protected {
 		}
 
 		$icon_file = $tmp_file;
-		$feed_id = db_escape_string($this->link, $_REQUEST["feed_id"]);
+		$feed_id = $this->dbh->escape_string($_REQUEST["feed_id"]);
 
 		if (is_file($icon_file) && $feed_id) {
-			if (filesize($icon_file) < 20000) {
+			if (filesize($icon_file) < 65535) {
 
-				$result = db_query($this->link, "SELECT id FROM ttrss_feeds
+				$result = $this->dbh->query("SELECT id FROM ttrss_feeds
 					WHERE id = '$feed_id' AND owner_uid = ". $_SESSION["uid"]);
 
-				if (db_num_rows($result) != 0) {
+				if ($this->dbh->num_rows($result) != 0) {
 					@unlink(ICONS_DIR . "/$feed_id.ico");
-					rename($icon_file, ICONS_DIR . "/$feed_id.ico");
-					$rc = 0;
+					if (rename($icon_file, ICONS_DIR . "/$feed_id.ico")) {
+						$this->dbh->query("UPDATE ttrss_feeds SET
+							favicon_avg_color = ''
+							WHERE id = '$feed_id'");
+
+						$rc = 0;
+					}
 				} else {
 					$rc = 2;
 				}
@@ -522,16 +531,16 @@ class Pref_Feeds extends Handler_Protected {
 		global $purge_intervals;
 		global $update_intervals;
 
-		$feed_id = db_escape_string($this->link, $_REQUEST["id"]);
+		$feed_id = $this->dbh->escape_string($_REQUEST["id"]);
 
-		$result = db_query($this->link,
+		$result = $this->dbh->query(
 			"SELECT * FROM ttrss_feeds WHERE id = '$feed_id' AND
 				owner_uid = " . $_SESSION["uid"]);
 
-		$auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result, 0,
+		$auth_pass_encrypted = sql_bool_to_bool($this->dbh->fetch_result($result, 0,
 			"auth_pass_encrypted"));
 
-		$title = htmlspecialchars(db_fetch_result($result,
+		$title = htmlspecialchars($this->dbh->fetch_result($result,
 			0, "title"));
 
 		print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"id\" value=\"$feed_id\">";
@@ -549,8 +558,8 @@ class Pref_Feeds extends Handler_Protected {
 
 		/* Feed URL */
 
-		$feed_url = db_fetch_result($result, 0, "feed_url");
-		$feed_url = htmlspecialchars(db_fetch_result($result,
+		$feed_url = $this->dbh->fetch_result($result, 0, "feed_url");
+		$feed_url = htmlspecialchars($this->dbh->fetch_result($result,
 			0, "feed_url"));
 
 		print "<hr/>";
@@ -561,25 +570,26 @@ class Pref_Feeds extends Handler_Protected {
 			regExp='^(http|https)://.*' style=\"width : 20em\"
 			name=\"feed_url\" value=\"$feed_url\">";
 
-		$last_error = db_fetch_result($result, 0, "last_error");
+		$last_error = $this->dbh->fetch_result($result, 0, "last_error");
 
 		if ($last_error) {
-			print "&nbsp;<span title=\"".htmlspecialchars($last_error)."\"
-				class=\"feed_error\">(error)</span>";
+			print "&nbsp;<img src=\"images/error.png\" alt=\"(error)\"
+				style=\"vertical-align : middle\"
+				title=\"".htmlspecialchars($last_error)."\">";
 
 		}
 
 		/* Category */
 
-		if (get_pref($this->link, 'ENABLE_FEED_CATS')) {
+		if (get_pref('ENABLE_FEED_CATS')) {
 
-			$cat_id = db_fetch_result($result, 0, "cat_id");
+			$cat_id = $this->dbh->fetch_result($result, 0, "cat_id");
 
 			print "<hr/>";
 
 			print __('Place in category:') . " ";
 
-			print_feed_cat_select($this->link, "cat_id", $cat_id,
+			print_feed_cat_select("cat_id", $cat_id,
 				'dojoType="dijit.form.Select"');
 		}
 
@@ -590,14 +600,14 @@ class Pref_Feeds extends Handler_Protected {
 
 		/* Update Interval */
 
-		$update_interval = db_fetch_result($result, 0, "update_interval");
+		$update_interval = $this->dbh->fetch_result($result, 0, "update_interval");
 
 		print_select_hash("update_interval", $update_interval, $update_intervals,
 			'dojoType="dijit.form.Select"');
 
 		/* Purge intl */
 
-		$purge_interval = db_fetch_result($result, 0, "purge_interval");
+		$purge_interval = $this->dbh->fetch_result($result, 0, "purge_interval");
 
 		print "<hr/>";
 		print __('Article purging:') . " ";
@@ -610,13 +620,13 @@ class Pref_Feeds extends Handler_Protected {
 		print "<div class=\"dlgSec\">".__("Authentication")."</div>";
 		print "<div class=\"dlgSecCont\">";
 
-		$auth_login = htmlspecialchars(db_fetch_result($result, 0, "auth_login"));
+		$auth_login = htmlspecialchars($this->dbh->fetch_result($result, 0, "auth_login"));
 
 		print "<input dojoType=\"dijit.form.TextBox\" id=\"feedEditDlg_login\"
 			placeHolder=\"".__("Login")."\"
 			name=\"auth_login\" value=\"$auth_login\"><hr/>";
 
-		$auth_pass = db_fetch_result($result, 0, "auth_pass");
+		$auth_pass = $this->dbh->fetch_result($result, 0, "auth_pass");
 
 		if ($auth_pass_encrypted) {
 			require_once "crypt.php";
@@ -637,7 +647,7 @@ class Pref_Feeds extends Handler_Protected {
 		print "<div class=\"dlgSec\">".__("Options")."</div>";
 		print "<div class=\"dlgSecCont\">";
 
-		$private = sql_bool_to_bool(db_fetch_result($result, 0, "private"));
+		$private = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "private"));
 
 		if ($private) {
 			$checked = "checked=\"1\"";
@@ -648,7 +658,7 @@ class Pref_Feeds extends Handler_Protected {
 		print "<input dojoType=\"dijit.form.CheckBox\" type=\"checkbox\" name=\"private\" id=\"private\"
 			$checked>&nbsp;<label for=\"private\">".__('Hide from Popular feeds')."</label>";
 
-		$include_in_digest = sql_bool_to_bool(db_fetch_result($result, 0, "include_in_digest"));
+		$include_in_digest = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "include_in_digest"));
 
 		if ($include_in_digest) {
 			$checked = "checked=\"1\"";
@@ -661,7 +671,7 @@ class Pref_Feeds extends Handler_Protected {
 			$checked>&nbsp;<label for=\"include_in_digest\">".__('Include in e-mail digest')."</label>";
 
 
-		$always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
+		$always_display_enclosures = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "always_display_enclosures"));
 
 		if ($always_display_enclosures) {
 			$checked = "checked";
@@ -673,7 +683,7 @@ class Pref_Feeds extends Handler_Protected {
 			name=\"always_display_enclosures\"
 			$checked>&nbsp;<label for=\"always_display_enclosures\">".__('Always display image attachments')."</label>";
 
-		$hide_images = sql_bool_to_bool(db_fetch_result($result, 0, "hide_images"));
+		$hide_images = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "hide_images"));
 
 		if ($hide_images) {
 			$checked = "checked=\"1\"";
@@ -686,7 +696,7 @@ class Pref_Feeds extends Handler_Protected {
 			$checked>&nbsp;<label for=\"hide_images\">".
 		__('Do not embed images')."</label>";
 
-		$cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
+		$cache_images = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "cache_images"));
 
 		if ($cache_images) {
 			$checked = "checked=\"1\"";
@@ -699,7 +709,7 @@ class Pref_Feeds extends Handler_Protected {
 			$checked>&nbsp;<label for=\"cache_images\">".
 		__('Cache images locally')."</label>";
 
-		$mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result, 0, "mark_unread_on_update"));
+		$mark_unread_on_update = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "mark_unread_on_update"));
 
 		if ($mark_unread_on_update) {
 			$checked = "checked";
@@ -728,14 +738,17 @@ class Pref_Feeds extends Handler_Protected {
 			<input type=\"hidden\" name=\"op\" value=\"pref-feeds\">
 			<input type=\"hidden\" name=\"feed_id\" value=\"$feed_id\">
 			<input type=\"hidden\" name=\"method\" value=\"uploadicon\">
-			<button dojoType=\"dijit.form.Button\" onclick=\"return uploadFeedIcon();\"
+			<button class=\"small\" dojoType=\"dijit.form.Button\" onclick=\"return uploadFeedIcon();\"
 				type=\"submit\">".__('Replace')."</button>
-			<button dojoType=\"dijit.form.Button\" onclick=\"return removeFeedIcon($feed_id);\"
+			<button class=\"small\" dojoType=\"dijit.form.Button\" onclick=\"return removeFeedIcon($feed_id);\"
 				type=\"submit\">".__('Remove')."</button>
 			</form>";
 
 		print "</div>";
 
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_EDIT_FEED,
+			"hook_prefs_edit_feed", $feed_id);
+
 		$title = htmlspecialchars($title, ENT_QUOTES);
 
 		print "<div class='dlgButtons'>
@@ -744,7 +757,7 @@ class Pref_Feeds extends Handler_Protected {
 				__('Unsubscribe')."</button>";
 
 		if (PUBSUBHUBBUB_ENABLED) {
-			$pubsub_state = db_fetch_result($result, 0, "pubsub_state");
+			$pubsub_state = $this->dbh->fetch_result($result, 0, "pubsub_state");
 			$pubsub_btn_disabled = ($pubsub_state == 2) ? "" : "disabled=\"1\"";
 
 			print "<button dojoType=\"dijit.form.Button\" id=\"pubsubReset_Btn\" $pubsub_btn_disabled
@@ -768,7 +781,7 @@ class Pref_Feeds extends Handler_Protected {
 		global $purge_intervals;
 		global $update_intervals;
 
-		$feed_ids = db_escape_string($this->link, $_REQUEST["ids"]);
+		$feed_ids = $this->dbh->escape_string($_REQUEST["ids"]);
 
 		print_notice("Enable the options you wish to apply using checkboxes on the right:");
 
@@ -781,34 +794,13 @@ class Pref_Feeds extends Handler_Protected {
 		print "<div class=\"dlgSec\">".__("Feed")."</div>";
 		print "<div class=\"dlgSecCont\">";
 
-		/* Title */
-
-		print "<input dojoType=\"dijit.form.ValidationTextBox\"
-			disabled=\"1\" style=\"font-size : 16px; width : 20em;\" required=\"1\"
-			name=\"title\" value=\"$title\">";
-
-		$this->batch_edit_cbox("title");
-
-		/* Feed URL */
-
-		print "<br/>";
-
-		print __('URL:') . " ";
-		print "<input dojoType=\"dijit.form.ValidationTextBox\" disabled=\"1\"
-			required=\"1\" regExp='^(http|https)://.*' style=\"width : 20em\"
-			name=\"feed_url\" value=\"$feed_url\">";
-
-		$this->batch_edit_cbox("feed_url");
-
 		/* Category */
 
-		if (get_pref($this->link, 'ENABLE_FEED_CATS')) {
-
-			print "<br/>";
+		if (get_pref('ENABLE_FEED_CATS')) {
 
 			print __('Place in category:') . " ";
 
-			print_feed_cat_select($this->link, "cat_id", $cat_id,
+			print_feed_cat_select("cat_id", false,
 				'disabled="1" dojoType="dijit.form.Select"');
 
 			$this->batch_edit_cbox("cat_id");
@@ -822,7 +814,7 @@ class Pref_Feeds extends Handler_Protected {
 
 		/* Update Interval */
 
-		print_select_hash("update_interval", $update_interval, $update_intervals,
+		print_select_hash("update_interval", "", $update_intervals,
 			'disabled="1" dojoType="dijit.form.Select"');
 
 		$this->batch_edit_cbox("update_interval");
@@ -835,7 +827,7 @@ class Pref_Feeds extends Handler_Protected {
 
 			print __('Article purging:') . " ";
 
-			print_select_hash("purge_interval", $purge_interval, $purge_intervals,
+			print_select_hash("purge_interval", "", $purge_intervals,
 				'disabled="1" dojoType="dijit.form.Select"');
 
 			$this->batch_edit_cbox("purge_interval");
@@ -847,13 +839,13 @@ class Pref_Feeds extends Handler_Protected {
 
 		print "<input dojoType=\"dijit.form.TextBox\"
 			placeHolder=\"".__("Login")."\" disabled=\"1\"
-			name=\"auth_login\" value=\"$auth_login\">";
+			name=\"auth_login\" value=\"\">";
 
 		$this->batch_edit_cbox("auth_login");
 
-		print "<br/><input dojoType=\"dijit.form.TextBox\" type=\"password\" name=\"auth_pass\"
+		print "<hr/> <input dojoType=\"dijit.form.TextBox\" type=\"password\" name=\"auth_pass\"
 			placeHolder=\"".__("Password")."\" disabled=\"1\"
-			value=\"$auth_pass\">";
+			value=\"\">";
 
 		$this->batch_edit_cbox("auth_pass");
 
@@ -924,27 +916,27 @@ class Pref_Feeds extends Handler_Protected {
 
 	function editsaveops($batch) {
 
-		$feed_title = db_escape_string($this->link, trim($_POST["title"]));
-		$feed_link = db_escape_string($this->link, trim($_POST["feed_url"]));
-		$upd_intl = (int) db_escape_string($this->link, $_POST["update_interval"]);
-		$purge_intl = (int) db_escape_string($this->link, $_POST["purge_interval"]);
-		$feed_id = (int) db_escape_string($this->link, $_POST["id"]); /* editSave */
-		$feed_ids = db_escape_string($this->link, $_POST["ids"]); /* batchEditSave */
-		$cat_id = (int) db_escape_string($this->link, $_POST["cat_id"]);
-		$auth_login = db_escape_string($this->link, trim($_POST["auth_login"]));
+		$feed_title = $this->dbh->escape_string(trim($_POST["title"]));
+		$feed_link = $this->dbh->escape_string(trim($_POST["feed_url"]));
+		$upd_intl = (int) $this->dbh->escape_string($_POST["update_interval"]);
+		$purge_intl = (int) $this->dbh->escape_string($_POST["purge_interval"]);
+		$feed_id = (int) $this->dbh->escape_string($_POST["id"]); /* editSave */
+		$feed_ids = $this->dbh->escape_string($_POST["ids"]); /* batchEditSave */
+		$cat_id = (int) $this->dbh->escape_string($_POST["cat_id"]);
+		$auth_login = $this->dbh->escape_string(trim($_POST["auth_login"]));
 		$auth_pass = trim($_POST["auth_pass"]);
-		$private = checkbox_to_sql_bool(db_escape_string($this->link, $_POST["private"]));
+		$private = checkbox_to_sql_bool($this->dbh->escape_string($_POST["private"]));
 		$include_in_digest = checkbox_to_sql_bool(
-			db_escape_string($this->link, $_POST["include_in_digest"]));
+			$this->dbh->escape_string($_POST["include_in_digest"]));
 		$cache_images = checkbox_to_sql_bool(
-			db_escape_string($this->link, $_POST["cache_images"]));
+			$this->dbh->escape_string($_POST["cache_images"]));
 		$hide_images = checkbox_to_sql_bool(
-			db_escape_string($this->link, $_POST["hide_images"]));
+			$this->dbh->escape_string($_POST["hide_images"]));
 		$always_display_enclosures = checkbox_to_sql_bool(
-			db_escape_string($this->link, $_POST["always_display_enclosures"]));
+			$this->dbh->escape_string($_POST["always_display_enclosures"]));
 
 		$mark_unread_on_update = checkbox_to_sql_bool(
-			db_escape_string($this->link, $_POST["mark_unread_on_update"]));
+			$this->dbh->escape_string($_POST["mark_unread_on_update"]));
 
 		if (strlen(FEED_CRYPT_KEY) > 0) {
 			require_once "crypt.php";
@@ -954,9 +946,9 @@ class Pref_Feeds extends Handler_Protected {
 			$auth_pass_encrypted = 'false';
 		}
 
-		$auth_pass = db_escape_string($this->link, $auth_pass);
+		$auth_pass = $this->dbh->escape_string($auth_pass);
 
-		if (get_pref($this->link, 'ENABLE_FEED_CATS')) {
+		if (get_pref('ENABLE_FEED_CATS')) {
 			if ($cat_id && $cat_id != 0) {
 				$category_qpart = "cat_id = '$cat_id',";
 				$category_qpart_nocomma = "cat_id = '$cat_id'";
@@ -971,7 +963,7 @@ class Pref_Feeds extends Handler_Protected {
 
 		if (!$batch) {
 
-			$result = db_query($this->link, "UPDATE ttrss_feeds SET
+			$this->dbh->query("UPDATE ttrss_feeds SET
 				$category_qpart
 				title = '$feed_title', feed_url = '$feed_link',
 				update_interval = '$upd_intl',
@@ -987,6 +979,9 @@ class Pref_Feeds extends Handler_Protected {
 				mark_unread_on_update = $mark_unread_on_update
 			WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
 
+			PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_SAVE_FEED,
+				"hook_prefs_save_feed", $feed_id);
+
 		} else {
 			$feed_data = array();
 
@@ -996,7 +991,7 @@ class Pref_Feeds extends Handler_Protected {
 				}
 			}
 
-			db_query($this->link, "BEGIN");
+			$this->dbh->query("BEGIN");
 
 			foreach (array_keys($feed_data) as $k) {
 
@@ -1059,23 +1054,23 @@ class Pref_Feeds extends Handler_Protected {
 				}
 
 				if ($qpart) {
-					db_query($this->link,
+					$this->dbh->query(
 						"UPDATE ttrss_feeds SET $qpart WHERE id IN ($feed_ids)
 						AND owner_uid = " . $_SESSION["uid"]);
 					print "<br/>";
 				}
 			}
 
-			db_query($this->link, "COMMIT");
+			$this->dbh->query("COMMIT");
 		}
 		return;
 	}
 
 	function resetPubSub() {
 
-		$ids = db_escape_string($this->link, $_REQUEST["ids"]);
+		$ids = $this->dbh->escape_string($_REQUEST["ids"]);
 
-		db_query($this->link, "UPDATE ttrss_feeds SET pubsub_state = 0 WHERE id IN ($ids)
+		$this->dbh->query("UPDATE ttrss_feeds SET pubsub_state = 0 WHERE id IN ($ids)
 			AND owner_uid = " . $_SESSION["uid"]);
 
 		return;
@@ -1083,30 +1078,30 @@ class Pref_Feeds extends Handler_Protected {
 
 	function remove() {
 
-		$ids = split(",", db_escape_string($this->link, $_REQUEST["ids"]));
+		$ids = explode(",", $this->dbh->escape_string($_REQUEST["ids"]));
 
 		foreach ($ids as $id) {
-			Pref_Feeds::remove_feed($this->link, $id, $_SESSION["uid"]);
+			Pref_Feeds::remove_feed($id, $_SESSION["uid"]);
 		}
 
 		return;
 	}
 
 	function clear() {
-		$id = db_escape_string($this->link, $_REQUEST["id"]);
-		$this->clear_feed_articles($this->link, $id);
+		$id = $this->dbh->escape_string($_REQUEST["id"]);
+		$this->clear_feed_articles($id);
 	}
 
 	function rescore() {
 		require_once "rssfuncs.php";
 
-		$ids = split(",", db_escape_string($this->link, $_REQUEST["ids"]));
+		$ids = explode(",", $this->dbh->escape_string($_REQUEST["ids"]));
 
 		foreach ($ids as $id) {
 
-			$filters = load_filters($this->link, $id, $_SESSION["uid"], 6);
+			$filters = load_filters($id, $_SESSION["uid"], 6);
 
-			$result = db_query($this->link, "SELECT
+			$result = $this->dbh->query("SELECT
 				title, content, link, ref_id, author,".
 				SUBSTRING_FOR_DATE."(updated, 1, 19) AS updated
 			  	FROM
@@ -1117,9 +1112,9 @@ class Pref_Feeds extends Handler_Protected {
 
 			$scores = array();
 
-			while ($line = db_fetch_assoc($result)) {
+			while ($line = $this->dbh->fetch_assoc($result)) {
 
-				$tags = get_article_tags($this->link, $line["ref_id"]);
+				$tags = get_article_tags($line["ref_id"]);
 
 				$article_filters = get_article_filters($filters, $line['title'],
 					$line['content'], $line['link'], strtotime($line['updated']),
@@ -1134,15 +1129,15 @@ class Pref_Feeds extends Handler_Protected {
 
 			foreach (array_keys($scores) as $s) {
 				if ($s > 1000) {
-					db_query($this->link, "UPDATE ttrss_user_entries SET score = '$s',
+					$this->dbh->query("UPDATE ttrss_user_entries SET score = '$s',
 						marked = true WHERE
 						ref_id IN (" . join(',', $scores[$s]) . ")");
 				} else if ($s < -500) {
-					db_query($this->link, "UPDATE ttrss_user_entries SET score = '$s',
+					$this->dbh->query("UPDATE ttrss_user_entries SET score = '$s',
 						unread = false WHERE
 						ref_id IN (" . join(',', $scores[$s]) . ")");
 				} else {
-					db_query($this->link, "UPDATE ttrss_user_entries SET score = '$s' WHERE
+					$this->dbh->query("UPDATE ttrss_user_entries SET score = '$s' WHERE
 						ref_id IN (" . join(',', $scores[$s]) . ")");
 				}
 			}
@@ -1154,16 +1149,16 @@ class Pref_Feeds extends Handler_Protected {
 
 	function rescoreAll() {
 
-		$result = db_query($this->link,
+		$result = $this->dbh->query(
 			"SELECT id FROM ttrss_feeds WHERE owner_uid = " . $_SESSION['uid']);
 
-		while ($feed_line = db_fetch_assoc($result)) {
+		while ($feed_line = $this->dbh->fetch_assoc($result)) {
 
 			$id = $feed_line["id"];
 
-			$filters = load_filters($this->link, $id, $_SESSION["uid"], 6);
+			$filters = load_filters($id, $_SESSION["uid"], 6);
 
-			$tmp_result = db_query($this->link, "SELECT
+			$tmp_result = $this->dbh->query("SELECT
 				title, content, link, ref_id, author,".
 				  	SUBSTRING_FOR_DATE."(updated, 1, 19) AS updated
 					FROM
@@ -1174,9 +1169,9 @@ class Pref_Feeds extends Handler_Protected {
 
 			$scores = array();
 
-			while ($line = db_fetch_assoc($tmp_result)) {
+			while ($line = $this->dbh->fetch_assoc($tmp_result)) {
 
-				$tags = get_article_tags($this->link, $line["ref_id"]);
+				$tags = get_article_tags($line["ref_id"]);
 
 				$article_filters = get_article_filters($filters, $line['title'],
 					$line['content'], $line['link'], strtotime($line['updated']),
@@ -1191,11 +1186,11 @@ class Pref_Feeds extends Handler_Protected {
 
 			foreach (array_keys($scores) as $s) {
 				if ($s > 1000) {
-					db_query($this->link, "UPDATE ttrss_user_entries SET score = '$s',
+					$this->dbh->query("UPDATE ttrss_user_entries SET score = '$s',
 						marked = true WHERE
 						ref_id IN (" . join(',', $scores[$s]) . ")");
 				} else {
-					db_query($this->link, "UPDATE ttrss_user_entries SET score = '$s' WHERE
+					$this->dbh->query("UPDATE ttrss_user_entries SET score = '$s' WHERE
 						ref_id IN (" . join(',', $scores[$s]) . ")");
 				}
 			}
@@ -1206,9 +1201,9 @@ class Pref_Feeds extends Handler_Protected {
 	}
 
 	function categorize() {
-		$ids = split(",", db_escape_string($this->link, $_REQUEST["ids"]));
+		$ids = explode(",", $this->dbh->escape_string($_REQUEST["ids"]));
 
-		$cat_id = db_escape_string($this->link, $_REQUEST["cat_id"]);
+		$cat_id = $this->dbh->escape_string($_REQUEST["cat_id"]);
 
 		if ($cat_id == 0) {
 			$cat_id_qpart = 'NULL';
@@ -1216,30 +1211,30 @@ class Pref_Feeds extends Handler_Protected {
 			$cat_id_qpart = "'$cat_id'";
 		}
 
-		db_query($this->link, "BEGIN");
+		$this->dbh->query("BEGIN");
 
 		foreach ($ids as $id) {
 
-			db_query($this->link, "UPDATE ttrss_feeds SET cat_id = $cat_id_qpart
+			$this->dbh->query("UPDATE ttrss_feeds SET cat_id = $cat_id_qpart
 				WHERE id = '$id'
 			  	AND owner_uid = " . $_SESSION["uid"]);
 
 		}
 
-		db_query($this->link, "COMMIT");
+		$this->dbh->query("COMMIT");
 	}
 
 	function removeCat() {
-		$ids = split(",", db_escape_string($this->link, $_REQUEST["ids"]));
+		$ids = explode(",", $this->dbh->escape_string($_REQUEST["ids"]));
 		foreach ($ids as $id) {
-			$this->remove_feed_category($this->link, $id, $_SESSION["uid"]);
+			$this->remove_feed_category($id, $_SESSION["uid"]);
 		}
 	}
 
 	function addCat() {
-		$feed_cat = db_escape_string($this->link, trim($_REQUEST["cat"]));
+		$feed_cat = $this->dbh->escape_string(trim($_REQUEST["cat"]));
 
-		add_feed_category($this->link, $feed_cat);
+		add_feed_category($feed_cat);
 	}
 
 	function index() {
@@ -1247,10 +1242,10 @@ class Pref_Feeds extends Handler_Protected {
 		print "<div dojoType=\"dijit.layout.AccordionContainer\" region=\"center\">";
 		print "<div id=\"pref-feeds-feeds\" dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Feeds')."\">";
 
-		$result = db_query($this->link, "SELECT COUNT(id) AS num_errors
+		$result = $this->dbh->query("SELECT COUNT(id) AS num_errors
 			FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
 
-		$num_errors = db_fetch_result($result, 0, "num_errors");
+		$num_errors = $this->dbh->fetch_result($result, 0, "num_errors");
 
 		if ($num_errors > 0) {
 
@@ -1265,13 +1260,18 @@ class Pref_Feeds extends Handler_Protected {
 			$interval_qpart = "DATE_SUB(NOW(), INTERVAL 3 MONTH)";
 		}
 
-		$result = db_query($this->link, "SELECT COUNT(*) AS num_inactive FROM ttrss_feeds WHERE
+		// could be performance-intensive and prevent feeds pref-panel from showing
+		if (!defined('_DISABLE_INACTIVE_FEEDS') || !_DISABLE_INACTIVE_FEEDS) {
+			$result = $this->dbh->query("SELECT COUNT(*) AS num_inactive FROM ttrss_feeds WHERE
 					(SELECT MAX(updated) FROM ttrss_entries, ttrss_user_entries WHERE
 						ttrss_entries.id = ref_id AND
 							ttrss_user_entries.feed_id = ttrss_feeds.id) < $interval_qpart AND
 			ttrss_feeds.owner_uid = ".$_SESSION["uid"]);
 
-		$num_inactive = db_fetch_result($result, 0, "num_inactive");
+			$num_inactive = $this->dbh->fetch_result($result, 0, "num_inactive");
+		} else {
+			$num_inactive = 0;
+		}
 
 		if ($num_inactive > 0) {
 			$inactive_button = "<button dojoType=\"dijit.form.Button\"
@@ -1279,7 +1279,7 @@ class Pref_Feeds extends Handler_Protected {
 					__("Inactive feeds") . "</button>";
 		}
 
-		$feed_search = db_escape_string($this->link, $_REQUEST["search"]);
+		$feed_search = $this->dbh->escape_string($_REQUEST["search"]);
 
 		if (array_key_exists("search", $_REQUEST)) {
 			$_SESSION["prefs_feed_search"] = $feed_search;
@@ -1322,7 +1322,7 @@ class Pref_Feeds extends Handler_Protected {
 			.__('Unsubscribe')."</div> ";
 		print "</div></div>";
 
-		if (get_pref($this->link, 'ENABLE_FEED_CATS')) {
+		if (get_pref('ENABLE_FEED_CATS')) {
 			print "<div dojoType=\"dijit.form.DropDownButton\">".
 					"<span>" . __('Categories')."</span>";
 			print "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
@@ -1339,9 +1339,6 @@ class Pref_Feeds extends Handler_Protected {
 		print $error_button;
 		print $inactive_button;
 
-		print "<button onclick=\"toggleHiddenFeedCats()\"
-			dojoType=\"dijit.form.Button\">".__('(Un)hide empty categories')."</button>";
-
 		if (defined('_ENABLE_FEED_DEBUGGING')) {
 
 			print "<select id=\"feedActionChooser\" onchange=\"feedActionChange()\">
@@ -1406,9 +1403,7 @@ class Pref_Feeds extends Handler_Protected {
 
 		print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('OPML')."\">";
 
-		print "<p>" . __("Using OPML you can export and import your feeds, filters, labels and Tiny Tiny RSS settings.") . " ";
-
-		print __("Only main settings profile can be migrated using OPML.") . "</p>";
+		print_notice(__("Using OPML you can export and import your feeds, filters, labels and Tiny Tiny RSS settings.") . __("Only main settings profile can be migrated using OPML."));
 
 		print "<iframe id=\"upload_iframe\"
 			name=\"upload_iframe\" onload=\"opmlImportComplete(this)\"
@@ -1442,8 +1437,7 @@ class Pref_Feeds extends Handler_Protected {
 		print "<button dojoType=\"dijit.form.Button\" onclick=\"return displayDlg('".__("Public OPML URL")."','pubOPMLUrl')\">".
 			__('Display published OPML URL')."</button> ";
 
-		global $pluginhost;
-		$pluginhost->run_hooks($pluginhost::HOOK_PREFS_TAB_SECTION,
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_TAB_SECTION,
 			"hook_prefs_tab_section", "prefFeedsOPML");
 
 		print "</div>"; # pane
@@ -1452,7 +1446,7 @@ class Pref_Feeds extends Handler_Protected {
 
 			print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Firefox integration')."\">";
 
-			print "<p>" . __('This Tiny Tiny RSS site can be used as a Firefox Feed Reader by clicking the link below.') . "</p>";
+			print_notice(__('This Tiny Tiny RSS site can be used as a Firefox Feed Reader by clicking the link below.'));
 
 			print "<p>";
 
@@ -1469,35 +1463,27 @@ class Pref_Feeds extends Handler_Protected {
 
 		print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Published & shared articles / Generated feeds')."\">";
 
-		print "<h3>" . __("Published articles and generated feeds") . "</h3>";
-
-		print "<p>".__('Published articles are exported as a public RSS feed and can be subscribed by anyone who knows the URL specified below.')."</p>";
+		print_notice(__('Published articles are exported as a public RSS feed and can be subscribed by anyone who knows the URL specified below.'));
 
 		$rss_url = '-2::' . htmlspecialchars(get_self_url_prefix() .
 				"/public.php?op=rss&id=-2&view-mode=all_articles");;
 
+		print "<p>";
+
 		print "<button dojoType=\"dijit.form.Button\" onclick=\"return displayDlg('".__("View as RSS")."','generatedFeed', '$rss_url')\">".
 			__('Display URL')."</button> ";
 
 		print "<button dojoType=\"dijit.form.Button\" onclick=\"return clearFeedAccessKeys()\">".
 			__('Clear all generated URLs')."</button> ";
 
-		print "<h3>" . __("Articles shared by URL") . "</h3>";
-
-		print "<p>" . __("You can disable all articles shared by unique URLs here.") . "</p>";
+		print "</p>";
 
-		print "<button dojoType=\"dijit.form.Button\" onclick=\"return clearArticleAccessKeys()\">".
-			__('Unshare all articles')."</button> ";
-
-		global $pluginhost;
-		$pluginhost->run_hooks($pluginhost::HOOK_PREFS_TAB_SECTION,
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_TAB_SECTION,
 			"hook_prefs_tab_section", "prefFeedsPublishedGenerated");
 
 		print "</div>"; #pane
 
-		global $pluginhost;
-
-		$pluginhost->run_hooks($pluginhost::HOOK_PREFS_TAB,
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_TAB,
 			"hook_prefs_tab", "prefFeeds");
 
 		print "</div>"; #container
@@ -1508,14 +1494,14 @@ class Pref_Feeds extends Handler_Protected {
 		$cat_id = (int) $cat_id;
 
 		if ($cat_id > 0) {
-			$cat_unread = ccache_find($this->link, $cat_id, $_SESSION["uid"], true);
+			$cat_unread = ccache_find($cat_id, $_SESSION["uid"], true);
 		} else if ($cat_id == 0 || $cat_id == -2) {
-			$cat_unread = getCategoryUnread($this->link, $cat_id);
+			$cat_unread = getCategoryUnread($cat_id);
 		}
 
 		$obj['id'] = 'CAT:' . $cat_id;
 		$obj['items'] = array();
-		$obj['name'] = getCategoryTitle($this->link, $cat_id);
+		$obj['name'] = getCategoryTitle($cat_id);
 		$obj['type'] = 'category';
 		$obj['unread'] = (int) $cat_unread;
 		$obj['bare_id'] = $cat_id;
@@ -1528,10 +1514,10 @@ class Pref_Feeds extends Handler_Protected {
 		$feed_id = (int) $feed_id;
 
 		if (!$title)
-			$title = getFeedTitle($this->link, $feed_id, false);
+			$title = getFeedTitle($feed_id, false);
 
 		if ($unread === false)
-			$unread = getFeedUnread($this->link, $feed_id, false);
+			$unread = getFeedUnread($feed_id, false);
 
 		$obj['id'] = 'FEED:' . $feed_id;
 		$obj['name'] = $title;
@@ -1541,6 +1527,7 @@ class Pref_Feeds extends Handler_Protected {
 		$obj['updated'] = $updated;
 		$obj['icon'] = getFeedIcon($feed_id);
 		$obj['bare_id'] = $feed_id;
+		$obj['auxcounter'] = 0;
 
 		return $obj;
 	}
@@ -1553,7 +1540,7 @@ class Pref_Feeds extends Handler_Protected {
 			$interval_qpart = "DATE_SUB(NOW(), INTERVAL 3 MONTH)";
 		}
 
-		$result = db_query($this->link, "SELECT ttrss_feeds.title, ttrss_feeds.site_url,
+		$result = $this->dbh->query("SELECT ttrss_feeds.title, ttrss_feeds.site_url,
 		  		ttrss_feeds.feed_url, ttrss_feeds.id, MAX(updated) AS last_article
 			FROM ttrss_feeds, ttrss_entries, ttrss_user_entries WHERE
 				(SELECT MAX(updated) FROM ttrss_entries, ttrss_user_entries WHERE
@@ -1565,7 +1552,7 @@ class Pref_Feeds extends Handler_Protected {
 			GROUP BY ttrss_feeds.title, ttrss_feeds.id, ttrss_feeds.site_url, ttrss_feeds.feed_url
 			ORDER BY last_article");
 
-		print "<h2" .__("These feeds have not been updated with new content for 3 months (oldest first):") . "</h2>";
+		print "<p" .__("These feeds have not been updated with new content for 3 months (oldest first):") . "</p>";
 
 		print "<div dojoType=\"dijit.Toolbar\">";
 		print "<div dojoType=\"dijit.form.DropDownButton\">".
@@ -1584,17 +1571,14 @@ class Pref_Feeds extends Handler_Protected {
 
 		$lnum = 1;
 
-		while ($line = db_fetch_assoc($result)) {
+		while ($line = $this->dbh->fetch_assoc($result)) {
 
-			$class = ($lnum % 2) ? "even" : "odd";
 			$feed_id = $line["id"];
 			$this_row_id = "id=\"FUPDD-$feed_id\"";
 
 			# class needed for selectTableRows()
 			print "<tr class=\"placeholder\" $this_row_id>";
 
-			$edit_title = htmlspecialchars($line["title"]);
-
 			# id needed for selectTableRows()
 			print "<td width='5%' align='center'><input
 				onclick='toggleSelectRow2(this);' dojoType=\"dijit.form.CheckBox\"
@@ -1607,7 +1591,7 @@ class Pref_Feeds extends Handler_Protected {
 				htmlspecialchars($line["title"])."</a>";
 
 			print "</td><td class=\"insensitive\" align='right'>";
-			print make_local_datetime($this->link, $line['last_article'], false);
+			print make_local_datetime($line['last_article'], false);
 			print "</td>";
 			print "</tr>";
 
@@ -1631,10 +1615,7 @@ class Pref_Feeds extends Handler_Protected {
 	}
 
 	function feedsWithErrors() {
-		print "<h2>" . __("These feeds have not been updated because of errors:") .
-			"</h2>";
-
-		$result = db_query($this->link, "SELECT id,title,feed_url,last_error,site_url
+		$result = $this->dbh->query("SELECT id,title,feed_url,last_error,site_url
 		FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
 
 		print "<div dojoType=\"dijit.Toolbar\">";
@@ -1654,17 +1635,14 @@ class Pref_Feeds extends Handler_Protected {
 
 		$lnum = 1;
 
-		while ($line = db_fetch_assoc($result)) {
+		while ($line = $this->dbh->fetch_assoc($result)) {
 
-			$class = ($lnum % 2) ? "even" : "odd";
 			$feed_id = $line["id"];
 			$this_row_id = "id=\"FERDD-$feed_id\"";
 
 			# class needed for selectTableRows()
 			print "<tr class=\"placeholder\" $this_row_id>";
 
-			$edit_title = htmlspecialchars($line["title"]);
-
 			# id needed for selectTableRows()
 			print "<td width='5%' align='center'><input
 				onclick='toggleSelectRow2(this);' dojoType=\"dijit.form.CheckBox\"
@@ -1708,53 +1686,53 @@ class Pref_Feeds extends Handler_Protected {
 	 * @param integer $id The id of the feed to purge.
 	 * @return void
 	 */
-	private function clear_feed_articles($link, $id) {
+	private function clear_feed_articles($id) {
 
 		if ($id != 0) {
-			$result = db_query($link, "DELETE FROM ttrss_user_entries
+			$result = $this->dbh->query("DELETE FROM ttrss_user_entries
 			WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
 		} else {
-			$result = db_query($link, "DELETE FROM ttrss_user_entries
+			$result = $this->dbh->query("DELETE FROM ttrss_user_entries
 			WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
 		}
 
-		$result = db_query($link, "DELETE FROM ttrss_entries WHERE
+		$result = $this->dbh->query("DELETE FROM ttrss_entries WHERE
 			(SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 
-		ccache_update($link, $id, $_SESSION['uid']);
+		ccache_update($id, $_SESSION['uid']);
 	} // function clear_feed_articles
 
-	private function remove_feed_category($link, $id, $owner_uid) {
+	private function remove_feed_category($id, $owner_uid) {
 
-		db_query($link, "DELETE FROM ttrss_feed_categories
+		$this->dbh->query("DELETE FROM ttrss_feed_categories
 			WHERE id = '$id' AND owner_uid = $owner_uid");
 
-		ccache_remove($link, $id, $owner_uid, true);
+		ccache_remove($id, $owner_uid, true);
 	}
 
-	static function remove_feed($link, $id, $owner_uid) {
+	static function remove_feed($id, $owner_uid) {
 
 		if ($id > 0) {
 
 			/* save starred articles in Archived feed */
 
-			db_query($link, "BEGIN");
+			db_query("BEGIN");
 
 			/* prepare feed if necessary */
 
-			$result = db_query($link, "SELECT feed_url FROM ttrss_feeds WHERE id = $id
+			$result = db_query("SELECT feed_url FROM ttrss_feeds WHERE id = $id
 				AND owner_uid = $owner_uid");
 
-			$feed_url = db_escape_string($link, db_fetch_result($result, 0, "feed_url"));
+			$feed_url = db_escape_string(db_fetch_result($result, 0, "feed_url"));
 
-			$result = db_query($link, "SELECT id FROM ttrss_archived_feeds
+			$result = db_query("SELECT id FROM ttrss_archived_feeds
 				WHERE feed_url = '$feed_url' AND owner_uid = $owner_uid");
 
 			if (db_num_rows($result) == 0) {
-				$result = db_query($link, "SELECT MAX(id) AS id FROM ttrss_archived_feeds");
+				$result = db_query("SELECT MAX(id) AS id FROM ttrss_archived_feeds");
 				$new_feed_id = (int)db_fetch_result($result, 0, "id") + 1;
 
-				db_query($link, "INSERT INTO ttrss_archived_feeds
+				db_query("INSERT INTO ttrss_archived_feeds
 					(id, owner_uid, title, feed_url, site_url)
 				SELECT $new_feed_id, owner_uid, title, feed_url, site_url from ttrss_feeds
 				WHERE id = '$id'");
@@ -1764,31 +1742,31 @@ class Pref_Feeds extends Handler_Protected {
 				$archive_id = db_fetch_result($result, 0, "id");
 			}
 
-			db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
+			db_query("UPDATE ttrss_user_entries SET feed_id = NULL,
 				orig_feed_id = '$archive_id' WHERE feed_id = '$id' AND
 					marked = true AND owner_uid = $owner_uid");
 
 			/* Remove access key for the feed */
 
-			db_query($link, "DELETE FROM ttrss_access_keys WHERE
+			db_query("DELETE FROM ttrss_access_keys WHERE
 				feed_id = '$id' AND owner_uid = $owner_uid");
 
 			/* remove the feed */
 
-			db_query($link, "DELETE FROM ttrss_feeds
+			db_query("DELETE FROM ttrss_feeds
 					WHERE id = '$id' AND owner_uid = $owner_uid");
 
-			db_query($link, "COMMIT");
+			db_query("COMMIT");
 
 			if (file_exists(ICONS_DIR . "/$id.ico")) {
 				unlink(ICONS_DIR . "/$id.ico");
 			}
 
-			ccache_remove($link, $id, $owner_uid);
+			ccache_remove($id, $owner_uid);
 
 		} else {
-			label_remove($link, feed_to_label_id($id), $owner_uid);
-			//ccache_remove($link, $id, $owner_uid); don't think labels are cached
+			label_remove(feed_to_label_id($id), $owner_uid);
+			//ccache_remove($id, $owner_uid); don't think labels are cached
 		}
 	}
 
@@ -1799,9 +1777,9 @@ class Pref_Feeds extends Handler_Protected {
 		print "<table width='100%'><tr><td>
 			".__("Add one valid RSS feed per line (no feed detection is done)")."
 		</td><td align='right'>";
-		if (get_pref($this->link, 'ENABLE_FEED_CATS')) {
+		if (get_pref('ENABLE_FEED_CATS')) {
 			print __('Place in category:') . " ";
-			print_feed_cat_select($this->link, "cat", false, 'dojoType="dijit.form.Select"');
+			print_feed_cat_select("cat", false, 'dojoType="dijit.form.Select"');
 		}
 		print "</td></tr><tr><td colspan='2'>";
 		print "<textarea
@@ -1841,17 +1819,17 @@ class Pref_Feeds extends Handler_Protected {
 	}
 
 	function batchAddFeeds() {
-		$cat_id = db_escape_string($this->link, $_REQUEST['cat']);
+		$cat_id = $this->dbh->escape_string($_REQUEST['cat']);
 		$feeds = explode("\n", $_REQUEST['feeds']);
-		$login = db_escape_string($this->link, $_REQUEST['login']);
+		$login = $this->dbh->escape_string($_REQUEST['login']);
 		$pass = trim($_REQUEST['pass']);
 
 		foreach ($feeds as $feed) {
-			$feed = db_escape_string($this->link, trim($feed));
+			$feed = $this->dbh->escape_string(trim($feed));
 
 			if (validate_feed_url($feed)) {
 
-				db_query($this->link, "BEGIN");
+				$this->dbh->query("BEGIN");
 
 				if ($cat_id == "0" || !$cat_id) {
 					$cat_qpart = "NULL";
@@ -1859,7 +1837,7 @@ class Pref_Feeds extends Handler_Protected {
 					$cat_qpart = "'$cat_id'";
 				}
 
-				$result = db_query($this->link,
+				$result = $this->dbh->query(
 					"SELECT id FROM ttrss_feeds
 					WHERE feed_url = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 
@@ -1871,69 +1849,82 @@ class Pref_Feeds extends Handler_Protected {
 					$auth_pass_encrypted = 'false';
 				}
 
-				$pass = db_escape_string($this->link, $pass);
+				$pass = $this->dbh->escape_string($pass);
 
-				if (db_num_rows($result) == 0) {
-					$result = db_query($this->link,
+				if ($this->dbh->num_rows($result) == 0) {
+					$result = $this->dbh->query(
 						"INSERT INTO ttrss_feeds
 							(owner_uid,feed_url,title,cat_id,auth_login,auth_pass,update_method,auth_pass_encrypted)
 						VALUES ('".$_SESSION["uid"]."', '$feed',
 							'[Unknown]', $cat_qpart, '$login', '$pass', 0, $auth_pass_encrypted)");
 				}
 
-				db_query($this->link, "COMMIT");
+				$this->dbh->query("COMMIT");
 			}
 		}
 	}
 
 	function regenOPMLKey() {
-		$this->update_feed_access_key($this->link, 'OPML:Publish',
+		$this->update_feed_access_key('OPML:Publish',
 		false, $_SESSION["uid"]);
 
-		$new_link = Opml::opml_publish_url($this->link);
+		$new_link = Opml::opml_publish_url();
 
 		print json_encode(array("link" => $new_link));
 	}
 
 	function regenFeedKey() {
-		$feed_id = db_escape_string($this->link, $_REQUEST['id']);
-		$is_cat = db_escape_string($this->link, $_REQUEST['is_cat']) == "true";
+		$feed_id = $this->dbh->escape_string($_REQUEST['id']);
+		$is_cat = $this->dbh->escape_string($_REQUEST['is_cat']) == "true";
 
-		$new_key = $this->update_feed_access_key($this->link, $feed_id, $is_cat);
+		$new_key = $this->update_feed_access_key($feed_id, $is_cat);
 
 		print json_encode(array("link" => $new_key));
 	}
 
 
-	private function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
+	private function update_feed_access_key($feed_id, $is_cat, $owner_uid = false) {
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
 		$sql_is_cat = bool_to_sql_bool($is_cat);
 
-		$result = db_query($link, "SELECT access_key FROM ttrss_access_keys
+		$result = $this->dbh->query("SELECT access_key FROM ttrss_access_keys
 			WHERE feed_id = '$feed_id'	AND is_cat = $sql_is_cat
 			AND owner_uid = " . $owner_uid);
 
-		if (db_num_rows($result) == 1) {
-			$key = db_escape_string($this->link, sha1(uniqid(rand(), true)));
+		if ($this->dbh->num_rows($result) == 1) {
+			$key = $this->dbh->escape_string(uniqid(base_convert(rand(), 10, 36)));
 
-			db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
+			$this->dbh->query("UPDATE ttrss_access_keys SET access_key = '$key'
 				WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
 				AND owner_uid = " . $owner_uid);
 
 			return $key;
 
 		} else {
-			return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
+			return get_feed_access_key($feed_id, $is_cat, $owner_uid);
 		}
 	}
 
 	// Silent
 	function clearKeys() {
-		db_query($this->link, "DELETE FROM ttrss_access_keys WHERE
+		$this->dbh->query("DELETE FROM ttrss_access_keys WHERE
 			owner_uid = " . $_SESSION["uid"]);
 	}
 
+	private function calculate_children_count($cat) {
+		$c = 0;
+
+		foreach ($cat['items'] as $child) {
+			if ($child['type'] == 'category') {
+				$c += $this->calculate_children_count($child);
+			} else {
+				$c += 1;
+			}
+		}
+
+		return $c;
+	}
 
 }
 ?>