Merge branch 'master' into css-feedtree-counter

Conflicts:
	tt-rss.css

17 files changed, 1132 insertions, 1296 deletions

diff --git a/include/autoload.php b/include/autoload.php
new file mode 100644
index 000000000..505b44477
--- /dev/null
+++ b/include/autoload.php
@@ -0,0 +1,14 @@
+<?php
+	require_once "functions.php";
+
+	function __autoload($class) {
+		$class_file = str_replace("_", "/", strtolower(basename($class)));
+
+		$file = dirname(__FILE__)."/../classes/$class_file.php";
+
+		if (file_exists($file)) {
+			require $file;
+		}
+
+	}
+?>
diff --git a/include/ccache.php b/include/ccache.php
index c53b1a08c..d89b9efe0 100644
--- a/include/ccache.php
+++ b/include/ccache.php
@@ -1,19 +1,19 @@
 <?php
-	/* function ccache_zero($link, $feed_id, $owner_uid) {
-		db_query($link, "UPDATE ttrss_counters_cache SET
+	/* function ccache_zero($feed_id, $owner_uid) {
+		db_query("UPDATE ttrss_counters_cache SET
 			value = 0, updated = NOW() WHERE
 			feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
 	} */
 
-	function ccache_zero_all($link, $owner_uid) {
-		db_query($link, "UPDATE ttrss_counters_cache SET
+	function ccache_zero_all($owner_uid) {
+		db_query("UPDATE ttrss_counters_cache SET
 			value = 0 WHERE owner_uid = '$owner_uid'");
 
-		db_query($link, "UPDATE ttrss_cat_counters_cache SET
+		db_query("UPDATE ttrss_cat_counters_cache SET
 			value = 0 WHERE owner_uid = '$owner_uid'");
 	}
 
-	function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
+	function ccache_remove($feed_id, $owner_uid, $is_cat = false) {
 
 		if (!$is_cat) {
 			$table = "ttrss_counters_cache";
@@ -21,39 +21,39 @@
 			$table = "ttrss_cat_counters_cache";
 		}
 
-		db_query($link, "DELETE FROM $table WHERE
+		db_query("DELETE FROM $table WHERE
 			feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
 
 	}
 
-	function ccache_update_all($link, $owner_uid) {
+	function ccache_update_all($owner_uid) {
 
-		if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
+		if (get_pref('ENABLE_FEED_CATS', $owner_uid)) {
 
-			$result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
+			$result = db_query("SELECT feed_id FROM ttrss_cat_counters_cache
 				WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
 
 			while ($line = db_fetch_assoc($result)) {
-				ccache_update($link, $line["feed_id"], $owner_uid, true);
+				ccache_update($line["feed_id"], $owner_uid, true);
 			}
 
 			/* We have to manually include category 0 */
 
-			ccache_update($link, 0, $owner_uid, true);
+			ccache_update(0, $owner_uid, true);
 
 		} else {
-			$result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
+			$result = db_query("SELECT feed_id FROM ttrss_counters_cache
 				WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
 
 			while ($line = db_fetch_assoc($result)) {
-				print ccache_update($link, $line["feed_id"], $owner_uid);
+				print ccache_update($line["feed_id"], $owner_uid);
 
 			}
 
 		}
 	}
 
-	function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
+	function ccache_find($feed_id, $owner_uid, $is_cat = false,
 		$no_update = false) {
 
 		if (!is_numeric($feed_id)) return;
@@ -61,7 +61,7 @@
 		if (!$is_cat) {
 			$table = "ttrss_counters_cache";
 			/* if ($feed_id > 0) {
-				$tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
+				$tmp_result = db_query("SELECT owner_uid FROM ttrss_feeds
 					WHERE id = '$feed_id'");
 				$owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
 			} */
@@ -75,7 +75,7 @@
 			$date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
 		}
 
-		$result = db_query($link, "SELECT value FROM $table
+		$result = db_query("SELECT value FROM $table
 			WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
 			LIMIT 1");
 
@@ -85,30 +85,30 @@
 			if ($no_update) {
 				return -1;
 			} else {
-				return ccache_update($link, $feed_id, $owner_uid, $is_cat);
+				return ccache_update($feed_id, $owner_uid, $is_cat);
 			}
 		}
 
 	}
 
-	function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
+	function ccache_update($feed_id, $owner_uid, $is_cat = false,
 		$update_pcat = true) {
 
 		if (!is_numeric($feed_id)) return;
 
 		/* if (!$is_cat && $feed_id > 0) {
-			$tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
+			$tmp_result = db_query("SELECT owner_uid FROM ttrss_feeds
 				WHERE id = '$feed_id'");
 			$owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
 		} */
 
-		$prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
+		$prev_unread = ccache_find($feed_id, $owner_uid, $is_cat, true);
 
 		/* When updating a label, all we need to do is recalculate feed counters
 		 * because labels are not cached */
 
 		if ($feed_id < 0) {
-			ccache_update_all($link, $owner_uid);
+			ccache_update_all($owner_uid);
 			return;
 		}
 
@@ -127,14 +127,14 @@
 
 			/* Recalculate counters for child feeds */
 
-			$result = db_query($link, "SELECT id FROM ttrss_feeds
+			$result = db_query("SELECT id FROM ttrss_feeds
 						WHERE owner_uid = '$owner_uid' AND $cat_qpart");
 
 			while ($line = db_fetch_assoc($result)) {
-				ccache_update($link, $line["id"], $owner_uid, false, false);
+				ccache_update($line["id"], $owner_uid, false, false);
 			}
 
-			$result = db_query($link, "SELECT SUM(value) AS sv
+			$result = db_query("SELECT SUM(value) AS sv
 				FROM ttrss_counters_cache, ttrss_feeds
 				WHERE id = feed_id AND $cat_qpart AND
 				ttrss_feeds.owner_uid = '$owner_uid'");
@@ -142,27 +142,27 @@
 			$unread = (int) db_fetch_result($result, 0, "sv");
 
 		} else {
-			$unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
+			$unread = (int) getFeedArticles($feed_id, $is_cat, true, $owner_uid);
 		}
 
-		db_query($link, "BEGIN");
+		db_query("BEGIN");
 
-		$result = db_query($link, "SELECT feed_id FROM $table
+		$result = db_query("SELECT feed_id FROM $table
 			WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
 
 		if (db_num_rows($result) == 1) {
-			db_query($link, "UPDATE $table SET
+			db_query("UPDATE $table SET
 				value = '$unread', updated = NOW() WHERE
 				feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
 
 		} else {
-			db_query($link, "INSERT INTO $table
+			db_query("INSERT INTO $table
 				(feed_id, value, owner_uid, updated)
 				VALUES
 				($feed_id, $unread, $owner_uid, NOW())");
 		}
 
-		db_query($link, "COMMIT");
+		db_query("COMMIT");
 
 		if ($feed_id > 0 && $prev_unread != $unread) {
 
@@ -172,36 +172,36 @@
 
 				if ($update_pcat) {
 
-					$result = db_query($link, "SELECT cat_id FROM ttrss_feeds
+					$result = db_query("SELECT cat_id FROM ttrss_feeds
 						WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
 
 					$cat_id = (int) db_fetch_result($result, 0, "cat_id");
 
-					ccache_update($link, $cat_id, $owner_uid, true);
+					ccache_update($cat_id, $owner_uid, true);
 
 				}
 			}
 		} else if ($feed_id < 0) {
-			ccache_update_all($link, $owner_uid);
+			ccache_update_all($owner_uid);
 		}
 
 		return $unread;
 	}
 
-	/* function ccache_cleanup($link, $owner_uid) {
+	/* function ccache_cleanup($owner_uid) {
 
 		if (DB_TYPE == "pgsql") {
-			db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
+			db_query("DELETE FROM ttrss_counters_cache AS c1 WHERE
 				(SELECT count(*) FROM ttrss_counters_cache AS c2
 					WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
 					AND owner_uid = '$owner_uid'");
 
-			db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
+			db_query("DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
 				(SELECT count(*) FROM ttrss_cat_counters_cache AS c2
 					WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
 					AND owner_uid = '$owner_uid'");
 		} else {
-			db_query($link, "DELETE c1 FROM
+			db_query("DELETE c1 FROM
 					ttrss_counters_cache AS c1,
 					ttrss_counters_cache AS c2
 				WHERE
@@ -209,7 +209,7 @@
 					c1.owner_uid = c2.owner_uid AND
 					c1.feed_id = c2.feed_id");
 
-			db_query($link, "DELETE c1 FROM
+			db_query("DELETE c1 FROM
 					ttrss_cat_counters_cache AS c1,
 					ttrss_cat_counters_cache AS c2
 				WHERE
diff --git a/include/colors.php b/include/colors.php
index d1e970728..41bf7b819 100644
--- a/include/colors.php
+++ b/include/colors.php
@@ -1,5 +1,7 @@
 <?php
 
+require_once "lib/floIcon.php";
+
 function _resolve_htmlcolor($color) {
 	$htmlcolors = array ("aliceblue" => "#f0f8ff",
 		"antiquewhite" => "#faebd7",
@@ -235,16 +237,16 @@ function rgb2hsl($arr) {
    } else {
       $s = $del_Max / $var_Max;
 
-      $del_R = ( ( ( $max - $var_R ) / 6 ) + ( $del_Max / 2 ) ) / $del_Max;
-      $del_G = ( ( ( $max - $var_G ) / 6 ) + ( $del_Max / 2 ) ) / $del_Max;
-      $del_B = ( ( ( $max - $var_B ) / 6 ) + ( $del_Max / 2 ) ) / $del_Max;
+      $del_R = ((($var_Max - $var_R ) / 6 ) + ($del_Max / 2 ) ) / $del_Max;
+      $del_G = ((($var_Max - $var_G ) / 6 ) + ($del_Max / 2 ) ) / $del_Max;
+      $del_B = ((($var_Max - $var_B ) / 6 ) + ($del_Max / 2 ) ) / $del_Max;
 
       if      ($var_R == $var_Max) $h = $del_B - $del_G;
-      else if ($var_G == $var_Max) $h = ( 1 / 3 ) + $del_R - $del_B;
-      else if ($var_B == $var_Max) $h = ( 2 / 3 ) + $del_G - $del_R;
+      else if ($var_G == $var_Max) $h = (1 / 3 ) + $del_R - $del_B;
+      else if ($var_B == $var_Max) $h = (2 / 3 ) + $del_G - $del_R;
 
-      if ($H < 0) $h++;
-      if ($H > 1) $h--;
+      if ($h < 0) $h++;
+      if ($h > 1) $h--;
    }
 
    return array($h, $s, $v);
@@ -259,10 +261,10 @@ function hsl2rgb($arr) {
         $r = $g = $B = $v * 255;
     } else {
         $var_H = $h * 6;
-        $var_i = floor( $var_H );
-        $var_1 = $v * ( 1 - $s );
-        $var_2 = $v * ( 1 - $s * ( $var_H - $var_i ) );
-        $var_3 = $v * ( 1 - $s * (1 - ( $var_H - $var_i ) ) );
+        $var_i = floor($var_H );
+        $var_1 = $v * (1 - $s );
+        $var_2 = $v * (1 - $s * ($var_H - $var_i ) );
+        $var_3 = $v * (1 - $s * (1 - ($var_H - $var_i ) ) );
 
         if       ($var_i == 0) { $var_R = $v     ; $var_G = $var_3  ; $var_B = $var_1 ; }
         else if  ($var_i == 1) { $var_R = $var_2 ; $var_G = $v      ; $var_B = $var_1 ; }
@@ -278,4 +280,62 @@ function hsl2rgb($arr) {
     return array($r, $g, $B);
 }
 
+	function colorPalette($imageFile, $numColors, $granularity = 5) {
+	   $granularity = max(1, abs((int)$granularity));
+	   $colors = array();
+
+		$size = @getimagesize($imageFile);
+
+		if (!defined('_DISABLE_FLOICON') && strtolower($size['mime']) == 'image/vnd.microsoft.icon') {
+			$ico = new floIcon();
+			@$ico->readICO($imageFile);
+
+			if(count($ico->images)==0)
+				return null;
+			else
+				$img = @$ico->images[count($ico->images)-1]->getImageResource();
+
+		} else {
+		   $img = @imagecreatefromstring(file_get_contents($imageFile));
+		}
+
+		if (!$img) return false;
+
+	   for($x = 0; $x < $size[0]; $x += $granularity) {
+	      for($y = 0; $y < $size[1]; $y += $granularity) {
+	         $thisColor = imagecolorat($img, $x, $y);
+	         $rgb = imagecolorsforindex($img, $thisColor);
+	         $red = round(round(($rgb['red'] / 0x33)) * 0x33);
+	         $green = round(round(($rgb['green'] / 0x33)) * 0x33);
+	         $blue = round(round(($rgb['blue'] / 0x33)) * 0x33);
+	         $thisRGB = sprintf('%02X%02X%02X', $red, $green, $blue);
+	         if(array_key_exists($thisRGB, $colors)) {
+	            $colors[$thisRGB]++;
+	         } else{
+	            $colors[$thisRGB] = 1;
+	         }
+	      }
+		}
+
+	   arsort($colors);
+	   return array_slice(array_keys($colors), 0, $numColors);
+	}
+
+	function calculate_avg_color($iconFile) {
+		$palette = colorPalette($iconFile, 4, 4);
+
+		if (is_array($palette)) {
+			foreach ($palette as $p) {
+				$hsl = rgb2hsl(_color_unpack("#$p"));
+
+				if ($hsl[1] > 0.25 && $hsl[2] > 0.25 &&
+					!($hsl[0] >= 0 && $hsl[0] < 0.01 && $hsl[1] < 0.01) &&
+					!($hsl[0] >= 0 && $hsl[0] < 0.01 && $hsl[2] > 0.99)) {
+
+					return _color_pack(hsl2rgb($hsl));
+				}
+			}
+		}
+		return '';
+	}
 ?>
diff --git a/include/crypt.php b/include/crypt.php
new file mode 100644
index 000000000..f06483ef1
--- /dev/null
+++ b/include/crypt.php
@@ -0,0 +1,36 @@
+<?php
+	function decrypt_string($str) {
+		$pair = explode(":", $str);
+
+		if (count($pair) == 2) {
+			@$iv = base64_decode($pair[0]);
+			@$encstr = base64_decode($pair[1]);
+
+			if ($iv && $encstr) {
+				$key = hash('SHA256', FEED_CRYPT_KEY, true);
+
+				$str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $encstr,
+					MCRYPT_MODE_CBC, $iv);
+
+				if ($str) return rtrim($str);
+			}
+		}
+
+		return false;
+	}
+
+	function encrypt_string($str) {
+		$key = hash('SHA256', FEED_CRYPT_KEY, true);
+
+		$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,
+			MCRYPT_MODE_CBC), MCRYPT_RAND);
+
+		$encstr = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $str,
+			MCRYPT_MODE_CBC, $iv);
+
+		$iv_base64 = base64_encode($iv);
+		$encstr_base64 = base64_encode($encstr);
+
+		return "$iv_base64:$encstr_base64";
+	}
+?>
diff --git a/include/db-prefs.php b/include/db-prefs.php
index 1ee3d609a..d122f3baf 100644
--- a/include/db-prefs.php
+++ b/include/db-prefs.php
@@ -1,186 +1,11 @@
 <?php
-	require_once "config.php";
 	require_once "db.php";
 
-	if (!defined('DISABLE_SESSIONS') && !defined('PREFS_NO_CACHE')) {
-		if (!$_SESSION["prefs_cache"])
-			$_SESSION["prefs_cache"] = array();
+	function get_pref($pref_name, $user_id = false, $die_on_error = false) {
+		return Db_Prefs::get()->read($pref_name, $user_id, $die_on_error);
 	}
 
-	function cache_prefs($link) {
-		$profile = false;
-
-		$user_id = $_SESSION["uid"];
-		@$profile = $_SESSION["profile"];
-
-		if ($profile) {
-			$profile_qpart = "profile = '$profile' AND";
-		} else {
-			$profile_qpart = "profile IS NULL AND";
-		}
-
-		if (get_schema_version($link) < 63) $profile_qpart = "";
-
-		$result = db_query($link, "SELECT
-			value,ttrss_prefs_types.type_name as type_name,ttrss_prefs.pref_name AS pref_name
-			FROM
-				ttrss_user_prefs,ttrss_prefs,ttrss_prefs_types
-			WHERE
-				$profile_qpart
-				ttrss_prefs.pref_name NOT LIKE '_MOBILE%' AND
-				ttrss_prefs_types.id = type_id AND
-				owner_uid = '$user_id' AND
-				ttrss_user_prefs.pref_name = ttrss_prefs.pref_name");
-
-		while ($line = db_fetch_assoc($result)) {
-			if ($user_id == $_SESSION["uid"]) {
-				$pref_name = $line["pref_name"];
-
-				$_SESSION["prefs_cache"][$pref_name]["type"] = $line["type_name"];
-				$_SESSION["prefs_cache"][$pref_name]["value"] = $line["value"];
-			}
-		}
-	}
-
-	function get_pref($link, $pref_name, $user_id = false, $die_on_error = false) {
-
-		$pref_name = db_escape_string($link, $pref_name);
-		$prefs_cache = true;
-		$profile = false;
-
-		if (!$user_id) {
-			$user_id = $_SESSION["uid"];
-			@$profile = $_SESSION["profile"];
-		} else {
-			$user_id = sprintf("%d", $user_id);
-			//$prefs_cache = false;
-		}
-
-		if ($prefs_cache && !defined('DISABLE_SESSIONS') && !defined('PREFS_NO_CACHE')) {
-			if ($_SESSION["prefs_cache"] && @$_SESSION["prefs_cache"][$pref_name]) {
-				$tuple = $_SESSION["prefs_cache"][$pref_name];
-				return convert_pref_type($tuple["value"], $tuple["type"]);
-			}
-		}
-
-		if ($profile) {
-			$profile_qpart = "profile = '$profile' AND";
-		} else {
-			$profile_qpart = "profile IS NULL AND";
-		}
-
-		if (get_schema_version($link) < 63) $profile_qpart = "";
-
-		$result = db_query($link, "SELECT
-			value,ttrss_prefs_types.type_name as type_name
-			FROM
-				ttrss_user_prefs,ttrss_prefs,ttrss_prefs_types
-			WHERE
-				$profile_qpart
-				ttrss_user_prefs.pref_name = '$pref_name' AND
-				ttrss_prefs_types.id = type_id AND
-				owner_uid = '$user_id' AND
-				ttrss_user_prefs.pref_name = ttrss_prefs.pref_name");
-
-		if (db_num_rows($result) > 0) {
-			$value = db_fetch_result($result, 0, "value");
-			$type_name = db_fetch_result($result, 0, "type_name");
-
-			if (!defined('DISABLE_SESSIONS')) {
-				if ($user_id == $_SESSION["uid"]) {
-					$_SESSION["prefs_cache"][$pref_name]["type"] = $type_name;
-					$_SESSION["prefs_cache"][$pref_name]["value"] = $value;
-				}
-			}
-
-			return convert_pref_type($value, $type_name);
-
-		} else {
-			if ($die_on_error) {
-				die("Fatal error, unknown preferences key: $pref_name");
-			} else {
-				return null;
-			}
-		}
-	}
-
-	function convert_pref_type($value, $type_name) {
-		if ($type_name == "bool") {
-			return $value == "true";
-		} else if ($type_name == "integer") {
-			return sprintf("%d", $value);
-		} else {
-			return $value;
-		}
-	}
-
-	function set_pref($link, $pref_name, $value, $user_id = false, $strip_tags = true) {
-		$pref_name = db_escape_string($link, $pref_name);
-		$value = db_escape_string($link, $value, $strip_tags);
-
-		if (!$user_id) {
-			$user_id = $_SESSION["uid"];
-			@$profile = $_SESSION["profile"];
-		} else {
-			$user_id = sprintf("%d", $user_id);
-			$prefs_cache = false;
-		}
-
-		if ($profile) {
-			$profile_qpart = "AND profile = '$profile'";
-		} else {
-			$profile_qpart = "AND profile IS NULL";
-		}
-
-		if (get_schema_version($link) < 63) $profile_qpart = "";
-
-		$type_name = "";
-		$current_value = "";
-
-		if (!defined('DISABLE_SESSIONS') && !defined('PREFS_NO_CACHE')) {
-			if ($_SESSION["prefs_cache"] && @$_SESSION["prefs_cache"][$pref_name]) {
-				$type_name = $_SESSION["prefs_cache"][$pref_name]["type"];
-				$current_value = $_SESSION["prefs_cache"][$pref_name]["value"];
-			}
-		}
-
-		if (!$type_name) {
-			$result = db_query($link, "SELECT type_name
-				FROM ttrss_prefs,ttrss_prefs_types
-				WHERE pref_name = '$pref_name' AND type_id = ttrss_prefs_types.id");
-
-			if (db_num_rows($result) > 0)
-				$type_name = db_fetch_result($result, 0, "type_name");
-		} else if ($current_value == $value) {
-			return;
-		}
-
-		if ($type_name) {
-			if ($type_name == "bool") {
-				if ($value == "1" || $value == "true") {
-					$value = "true";
-				} else {
-					$value = "false";
-				}
-			} else if ($type_name == "integer") {
-				$value = sprintf("%d", $value);
-			}
-
-			if ($pref_name == 'USER_TIMEZONE' && $value == '') {
-				$value = 'UTC';
-			}
-
-			db_query($link, "UPDATE ttrss_user_prefs SET
-				value = '$value' WHERE pref_name = '$pref_name'
-					$profile_qpart
-					AND owner_uid = " . $_SESSION["uid"]);
-
-			if (!defined('DISABLE_SESSIONS')) {
-				if ($user_id == $_SESSION["uid"]) {
-					$_SESSION["prefs_cache"][$pref_name]["type"] = $type_name;
-					$_SESSION["prefs_cache"][$pref_name]["value"] = $value;
-				}
-			}
-		}
+	function set_pref($pref_name, $value, $user_id = false, $strip_tags = true) {
+		return Db_Prefs::get()->write($pref_name, $value, $user_id, $strip_tags);
 	}
 ?>
diff --git a/include/db.php b/include/db.php
index a70a1d878..55d1d654e 100644
--- a/include/db.php
+++ b/include/db.php
@@ -1,138 +1,36 @@
 <?php
 
-require_once "config.php";
-
-function db_connect($host, $user, $pass, $db) {
-	if (DB_TYPE == "pgsql") {
-
-		$string = "dbname=$db user=$user";
-
-		if ($pass) {
-			$string .= " password=$pass";
-		}
-
-		if ($host) {
-			$string .= " host=$host";
-		}
-
-		if (defined('DB_PORT') && DB_PORT) {
-			$string = "$string port=" . DB_PORT;
-		}
-
-		$link = pg_connect($string);
-
-		if (!$link) {
-			die("Unable to connect to database (as $user to $host, database $db):" . pg_last_error());
-		}
-
-		return $link;
-
-	} else if (DB_TYPE == "mysql") {
-		$link = mysql_connect($host, $user, $pass);
-		if ($link) {
-			$result = mysql_select_db($db, $link);
-			if (!$result) {
-				die("Can't select DB: " . mysql_error($link));
-			}
-			return $link;
-		} else {
-			die("Unable to connect to database (as $user to $host, database $db): " . mysql_error());
-		}
-	}
+function db_escape_string($s, $strip_tags = true) {
+	return Db::get()->escape_string($s, $strip_tags);
 }
 
-function db_escape_string($link, $s, $strip_tags = true) {
-	if ($strip_tags) $s = strip_tags($s);
-
-	if (DB_TYPE == "pgsql") {
-		return pg_escape_string($link, $s);
-	} else {
-		return mysql_real_escape_string($s, $link);
-	}
-}
-
-function db_query($link, $query, $die_on_error = true) {
-	if (DB_TYPE == "pgsql") {
-		$result = pg_query($link, $query);
-		if (!$result) {
-			$query = htmlspecialchars($query); // just in case
-			if ($die_on_error) {
-				die("Query <i>$query</i> failed [$result]: " . ($link ? pg_last_error($link) : "No connection"));
-			}
-		}
-		return $result;
-	} else if (DB_TYPE == "mysql") {
-		$result = mysql_query($query, $link);
-		if (!$result) {
-			$query = htmlspecialchars($query);
-			if ($die_on_error) {
-				die("Query <i>$query</i> failed: " . ($link ? mysql_error($link) : "No connection"));
-			}
-		}
-		return $result;
-	}
+function db_query($query, $die_on_error = true) {
+	return Db::get()->query($query, $die_on_error);
 }
 
 function db_fetch_assoc($result) {
-	if (DB_TYPE == "pgsql") {
-		return pg_fetch_assoc($result);
-	} else if (DB_TYPE == "mysql") {
-		return mysql_fetch_assoc($result);
-	}
+	return Db::get()->fetch_assoc($result);
 }
 
 
 function db_num_rows($result) {
-	if (DB_TYPE == "pgsql") {
-		return pg_num_rows($result);
-	} else if (DB_TYPE == "mysql") {
-		return mysql_num_rows($result);
-	}
+	return Db::get()->num_rows($result);
 }
 
 function db_fetch_result($result, $row, $param) {
-	if (DB_TYPE == "pgsql") {
-		return pg_fetch_result($result, $row, $param);
-	} else if (DB_TYPE == "mysql") {
-		// I hate incoherent naming of PHP functions
-		return mysql_result($result, $row, $param);
-	}
-}
-
-function db_unescape_string($str) {
-	$tmp = str_replace("\\\"", "\"", $str);
-	$tmp = str_replace("\\'", "'", $tmp);
-	return $tmp;
-}
-
-function db_close($link) {
-	if (DB_TYPE == "pgsql") {
-
-		return pg_close($link);
-
-	} else if (DB_TYPE == "mysql") {
-		return mysql_close($link);
-	}
+	return Db::get()->fetch_result($result, $row, $param);
 }
 
-function db_affected_rows($link, $result) {
-	if (DB_TYPE == "pgsql") {
-		return pg_affected_rows($result);
-	} else if (DB_TYPE == "mysql") {
-		return mysql_affected_rows($link);
-	}
+function db_affected_rows($result) {
+	return Db::get()->affected_rows($result);
 }
 
-function db_last_error($link) {
-	if (DB_TYPE == "pgsql") {
-		return pg_last_error($link);
-	} else if (DB_TYPE == "mysql") {
-		return mysql_error($link);
-	}
+function db_last_error() {
+	return Db::get()->last_error();
 }
 
 function db_quote($str){
-	return("'$str'");
+	return Db::get()->quote($str);
 }
 
 ?>
diff --git a/include/digest.php b/include/digest.php
index ab29d9432..965fd1a79 100644
--- a/include/digest.php
+++ b/include/digest.php
@@ -6,7 +6,7 @@
 	 * @param integer $limit The maximum number of articles by digest.
 	 * @return boolean Return false if digests are not enabled.
 	 */
-	function send_headlines_digests($link, $debug = false) {
+	function send_headlines_digests($debug = false) {
 
 		require_once 'classes/ttrssmailer.php';
 
@@ -21,28 +21,28 @@
 			$interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL 1 DAY)";
 		}
 
-		$result = db_query($link, "SELECT id,email FROM ttrss_users
+		$result = db_query("SELECT id,email FROM ttrss_users
 				WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
 
 		while ($line = db_fetch_assoc($result)) {
 
-			if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
-				$preferred_ts = strtotime(get_pref($link, 'DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
+			if (get_pref('DIGEST_ENABLE', $line['id'], false)) {
+				$preferred_ts = strtotime(get_pref('DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
 
 				// try to send digests within 2 hours of preferred time
 				if ($preferred_ts && time() >= $preferred_ts &&
 						time() - $preferred_ts <= 7200) {
 
-					if ($debug) print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
+					if ($debug) _debug("Sending digest for UID:" . $line['id'] . " - " . $line["email"]);
 
-					$do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
+					$do_catchup = get_pref('DIGEST_CATCHUP', $line['id'], false);
 
 					global $tz_offset;
 
 					// reset tz_offset global to prevent tz cache clash between users
 					$tz_offset = -1;
 
-					$tuple = prepare_headlines_digest($link, $line["id"], 1, $limit);
+					$tuple = prepare_headlines_digest($line["id"], 1, $limit);
 					$digest = $tuple[0];
 					$headlines_count = $tuple[1];
 					$affected_ids = $tuple[2];
@@ -54,19 +54,19 @@
 
 						$rc = $mail->quickMail($line["email"], $line["login"] , DIGEST_SUBJECT, $digest, $digest_text);
 
-						if (!$rc && $debug) print "ERROR: " . $mail->ErrorInfo;
+						if (!$rc && $debug) _debug("ERROR: " . $mail->ErrorInfo);
 
-						if ($debug) print "RC=$rc\n";
+						if ($debug) _debug("RC=$rc");
 
 						if ($rc && $do_catchup) {
-							if ($debug) print "Marking affected articles as read...\n";
-							catchupArticlesById($link, $affected_ids, 0, $line["id"]);
+							if ($debug) _debug("Marking affected articles as read...");
+							catchupArticlesById($affected_ids, 0, $line["id"]);
 						}
 					} else {
-						if ($debug) print "No headlines\n";
+						if ($debug) _debug("No headlines");
 					}
 
-					db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
+					db_query("UPDATE ttrss_users SET last_digest_sent = NOW()
 						WHERE id = " . $line["id"]);
 
 				}
@@ -77,7 +77,7 @@
 
 	}
 
-	function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 1000) {
+	function prepare_headlines_digest($user_id, $days = 1, $limit = 1000) {
 
 		require_once "lib/MiniTemplator.class.php";
 
@@ -87,7 +87,7 @@
 		$tpl->readTemplateFromFile("templates/digest_template_html.txt");
 		$tpl_t->readTemplateFromFile("templates/digest_template.txt");
 
-		$user_tz_string = get_pref($link, 'USER_TIMEZONE', $user_id);
+		$user_tz_string = get_pref('USER_TIMEZONE', $user_id);
 		$local_ts = convert_timestamp(time(), 'UTC', $user_tz_string);
 
 		$tpl->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
@@ -104,7 +104,7 @@
 			$interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
 		}
 
-		$result = db_query($link, "SELECT ttrss_entries.title,
+		$result = db_query("SELECT ttrss_entries.title,
 				ttrss_feeds.title AS feed_title,
 				COALESCE(ttrss_feed_categories.title, '".__('Uncategorized')."') AS cat_title,
 				date_updated,
@@ -143,7 +143,7 @@
 
 			array_push($affected_ids, $line["ref_id"]);
 
-			$updated = make_local_datetime($link, $line['last_updated'], false,
+			$updated = make_local_datetime($line['last_updated'], false,
 				$user_id);
 
 /*			if ($line["score"] != 0) {
@@ -152,7 +152,7 @@
 				$line["title"] .= " (".$line['score'].")";
 			} */
 
-			if (get_pref($link, 'ENABLE_FEED_CATS', $user_id)) {
+			if (get_pref('ENABLE_FEED_CATS', $user_id)) {
 				$line['feed_title'] = $line['cat_title'] . " / " . $line['feed_title'];
 			}
 
diff --git a/include/errorhandler.php b/include/errorhandler.php
new file mode 100644
index 000000000..9acef2357
--- /dev/null
+++ b/include/errorhandler.php
@@ -0,0 +1,37 @@
+<?php
+function ttrss_error_handler($errno, $errstr, $file, $line, $context) {
+	global $logger;
+
+	if (error_reporting() == 0 || !$errno) return false;
+
+	$file = substr(str_replace(dirname(dirname(__FILE__)), "", $file), 1);
+
+	return Logger::get()->log_error($errno, $errstr, $file, $line, $context);
+}
+
+function ttrss_fatal_handler() {
+	global $logger;
+
+	$error = error_get_last();
+
+	if ($error !== NULL) {
+		$errno = $error["type"];
+		$file = $error["file"];
+		$line = $error["line"];
+		$errstr  = $error["message"];
+
+		if (!$errno) return false;
+
+		$context = debug_backtrace();
+
+		$file = substr(str_replace(dirname(dirname(__FILE__)), "", $file), 1);
+
+		return Logger::get()->log_error($errno, $errstr, $file, $line, $context);
+	}
+
+	return false;
+}
+
+register_shutdown_function('ttrss_fatal_handler');
+set_error_handler('ttrss_error_handler');
+?>
diff --git a/include/feedbrowser.php b/include/feedbrowser.php
index e5ee4a70d..6c245121f 100644
--- a/include/feedbrowser.php
+++ b/include/feedbrowser.php
@@ -1,5 +1,5 @@
 <?php
-	function make_feed_browser($link, $search, $limit, $mode = 1) {
+	function make_feed_browser($search, $limit, $mode = 1) {
 
 		$owner_uid = $_SESSION["uid"];
 		$rv = '';
@@ -12,13 +12,13 @@
 		}
 
 		if ($mode == 1) {
-			/* $result = db_query($link, "SELECT feed_url, subscribers FROM
+			/* $result = db_query("SELECT feed_url, subscribers FROM
 			 ttrss_feedbrowser_cache WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
 			WHERE tf.feed_url = ttrss_feedbrowser_cache.feed_url
 			AND owner_uid = '$owner_uid') $search_qpart
 			ORDER BY subscribers DESC LIMIT $limit"); */
 
-			$result = db_query($link, "SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
+			$result = db_query("SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
 						(SELECT feed_url, site_url, title, subscribers FROM ttrss_feedbrowser_cache UNION ALL
 							SELECT feed_url, site_url, title, subscribers FROM ttrss_linked_feeds) AS qqq
 						WHERE
@@ -28,7 +28,7 @@
 						GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT $limit");
 
 		} else if ($mode == 2) {
-			$result = db_query($link, "SELECT *,
+			$result = db_query("SELECT *,
 						(SELECT COUNT(*) FROM ttrss_user_entries WHERE
 					 		orig_feed_id = ttrss_archived_feeds.id) AS articles_archived
 						FROM
diff --git a/include/functions.php b/include/functions.php
index 4ac4e0968..e3e113786 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -1,25 +1,16 @@
 <?php
 	define('EXPECTED_CONFIG_VERSION', 26);
-	define('SCHEMA_VERSION', 116);
+	define('SCHEMA_VERSION', 120);
 
 	define('LABEL_BASE_INDEX', -1024);
 	define('PLUGIN_FEED_BASE_INDEX', -128);
 
+	define('COOKIE_LIFETIME_LONG', 86400*365);
+
 	$fetch_last_error = false;
 	$fetch_last_error_code = false;
 	$fetch_last_content_type = false;
-	$pluginhost = false;
-
-	function __autoload($class) {
-		$class_file = str_replace("_", "/", strtolower(basename($class)));
-
-		$file = dirname(__FILE__)."/../classes/$class_file.php";
-
-		if (file_exists($file)) {
-			require $file;
-		}
-
-	}
+	$fetch_curl_used = false;
 
 	mb_internal_encoding("UTF-8");
 	date_default_timezone_set('UTC');
@@ -106,8 +97,12 @@
 			$lang = _TRANSLATION_OVERRIDE_DEFAULT;
 		}
 
-		if ($_SESSION["language"] && $_SESSION["language"] != "auto") {
-			$lang = $_SESSION["language"];
+		if ($_SESSION["uid"] && get_schema_version() >= 120) {
+			$pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
+
+			if ($pref_lang) {
+				$lang = $pref_lang;
+			}
 		}
 
 		if ($lang) {
@@ -124,8 +119,6 @@
 		}
 	}
 
-	startup_gettext();
-
 	require_once 'db-prefs.php';
 	require_once 'version.php';
 	require_once 'ccache.php';
@@ -136,8 +129,6 @@
 
 	require_once 'lib/pubsubhubbub/publisher.php';
 
-	$tz_offset = -1;
-	$utc_tz = new DateTimeZone('UTC');
 	$schema_version = false;
 
 	/**
@@ -146,13 +137,14 @@
 	 * @param string $msg The debug message.
 	 * @return void
 	 */
-	function _debug($msg) {
+	function _debug($msg, $show = true) {
+
 		$ts = strftime("%H:%M:%S", time());
 		if (function_exists('posix_getpid')) {
 			$ts = "$ts/" . posix_getpid();
 		}
 
-		if (!(defined('QUIET') && QUIET)) {
+		if ($show && !(defined('QUIET') && QUIET)) {
 			print "[$ts] $msg\n";
 		}
 
@@ -177,13 +169,13 @@
 	 * @access public
 	 * @return void
 	 */
-	function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
+	function purge_feed($feed_id, $purge_interval, $debug = false) {
 
-		if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
+		if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id);
 
 		$rows = -1;
 
-		$result = db_query($link,
+		$result = db_query(
 			"SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 
 		$owner_uid = false;
@@ -194,7 +186,7 @@
 
 		if ($purge_interval == -1 || !$purge_interval) {
 			if ($owner_uid) {
-				ccache_update($link, $feed_id, $owner_uid);
+				ccache_update($feed_id, $owner_uid);
 			}
 			return;
 		}
@@ -202,7 +194,7 @@
 		if (!$owner_uid) return;
 
 		if (FORCE_ARTICLE_PURGE == 0) {
-			$purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
+			$purge_unread = get_pref("PURGE_UNREAD_ARTICLES",
 				$owner_uid, false);
 		} else {
 			$purge_unread = true;
@@ -212,11 +204,11 @@
 		if (!$purge_unread) $query_limit = " unread = false AND ";
 
 		if (DB_TYPE == "pgsql") {
-			$pg_version = get_pgsql_version($link);
+			$pg_version = get_pgsql_version();
 
 			if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 
-				$result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
+				$result = db_query("DELETE FROM ttrss_user_entries WHERE
 					ttrss_entries.id = ref_id AND
 					marked = false AND
 					feed_id = '$feed_id' AND
@@ -225,7 +217,7 @@
 
 			} else {
 
-				$result = db_query($link, "DELETE FROM ttrss_user_entries
+				$result = db_query("DELETE FROM ttrss_user_entries
 					USING ttrss_entries
 					WHERE ttrss_entries.id = ref_id AND
 					marked = false AND
@@ -234,28 +226,25 @@
 					ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 			}
 
-			$rows = pg_affected_rows($result);
-
 		} else {
 
-/*			$result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
+/*			$result = db_query("DELETE FROM ttrss_user_entries WHERE
 				marked = false AND feed_id = '$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
+			$result = db_query("DELETE FROM ttrss_user_entries
 				USING ttrss_user_entries, ttrss_entries
 				WHERE ttrss_entries.id = ref_id AND
 				marked = false AND
 				feed_id = '$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);
+		$rows = db_affected_rows($result);
+
+		ccache_update($feed_id, $owner_uid);
 
 		if ($debug) {
 			_debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
@@ -264,16 +253,16 @@
 		return $rows;
 	} // function purge_feed
 
-	function feed_purge_interval($link, $feed_id) {
+	function feed_purge_interval($feed_id) {
 
-		$result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
+		$result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
 			WHERE id = '$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,
+			if ($purge_interval == 0) $purge_interval = get_pref(
 				'PURGE_OLD_DAYS', $owner_uid);
 
 			return $purge_interval;
@@ -283,20 +272,20 @@
 		}
 	}
 
-	function purge_orphans($link, $do_output = false) {
+	function purge_orphans($do_output = false) {
 
 		// purge orphaned posts in main content table
-		$result = db_query($link, "DELETE FROM ttrss_entries WHERE
+		$result = db_query("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);
+			$rows = db_affected_rows($result);
 			_debug("Purged $rows orphaned posts.");
 		}
 	}
 
-	function get_feed_update_interval($link, $feed_id) {
-		$result = db_query($link, "SELECT owner_uid, update_interval FROM
+	function get_feed_update_interval($feed_id) {
+		$result = db_query("SELECT owner_uid, update_interval FROM
 			ttrss_feeds WHERE id = '$feed_id'");
 
 		if (db_num_rows($result) == 1) {
@@ -306,7 +295,7 @@
 			if ($update_interval != 0) {
 				return $update_interval;
 			} else {
-				return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
+				return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 			}
 
 		} else {
@@ -319,32 +308,35 @@
 		global $fetch_last_error;
 		global $fetch_last_error_code;
 		global $fetch_last_content_type;
+		global $fetch_curl_used;
 
 		$url = str_replace(' ', '%20', $url);
 
-		if (!defined('NO_CURL') && function_exists('curl_init') && !ini_get("open_basedir")) {
+		if (!defined('NO_CURL') && function_exists('curl_init')) {
 
-			if (ini_get("safe_mode")) {
+			$fetch_curl_used = true;
+
+			if (ini_get("safe_mode") || ini_get("open_basedir")) {
 				$ch = curl_init(geturl($url));
 			} else {
 				$ch = curl_init($url);
 			}
 
-			if ($timestamp) {
+			if ($timestamp && !$post_query) {
 				curl_setopt($ch, CURLOPT_HTTPHEADER,
 					array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
 			}
 
 			curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
 			curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
-			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode"));
+			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode") && !ini_get("open_basedir"));
 			curl_setopt($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($ch, CURLOPT_ENCODING, "");
 			curl_setopt($ch, CURLOPT_REFERER, $url);
 
 			if ($post_query) {
@@ -387,6 +379,9 @@
 
 			return $contents;
 		} else {
+
+			$fetch_curl_used = false;
+
 			if ($login && $pass){
 				$url_parts = array();
 
@@ -399,20 +394,43 @@
 				}
 			}
 
-			$data = @file_get_contents($url);
+			if (!$post_query && $timestamp) {
+				$context = stream_context_create(array(
+					'http' => array(
+						'method' => 'GET',
+						'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
+					)));
+			} else {
+				$context = NULL;
+			}
+
+			$old_error = error_get_last();
+
+			$data = @file_get_contents($url, false, $context);
 
 			$fetch_last_content_type = false;  // reset if no type was sent from server
-			foreach ($http_response_header as $h) {
-				if (substr(strtolower($h), 0, 13) == 'content-type:') {
-					$fetch_last_content_type = substr($h, 14);
-					// don't abort here b/c there might be more than one
-					// e.g. if we were being redirected -- last one is the right one
+			if (isset($http_response_header) && is_array($http_response_header)) {
+				foreach ($http_response_header as $h) {
+					if (substr(strtolower($h), 0, 13) == 'content-type:') {
+						$fetch_last_content_type = substr($h, 14);
+						// don't abort here b/c there might be more than one
+						// e.g. if we were being redirected -- last one is the right one
+					}
+
+					if (substr(strtolower($h), 0, 7) == 'http/1.') {
+						$fetch_last_error_code = (int) substr($h, 9, 3);
+					}
 				}
 			}
 
-			if (!$data && function_exists('error_get_last')) {
+			if (!$data) {
 				$error = error_get_last();
-				$fetch_last_error = $error["message"];
+
+				if ($error['message'] != $old_error['message']) {
+					$fetch_last_error = $error["message"];
+				} else {
+					$fetch_last_error = "HTTP Code: $fetch_last_error_code";
+				}
 			}
 			return $data;
 		}
@@ -461,7 +479,7 @@
 		return $favicon_url;
 	} // function get_favicon_url
 
-	function check_feed_favicon($site_url, $feed, $link) {
+	function check_feed_favicon($site_url, $feed) {
 #		print "FAVICON [$site_url]: $favicon_url\n";
 
 		$icon_file = ICONS_DIR . "/$feed.ico";
@@ -508,6 +526,7 @@
 					}
 				}
 			}
+            return $icon_file;
 		}
 	}
 
@@ -562,9 +581,9 @@
 		}
 	}
 
-	function initialize_user_prefs($link, $uid, $profile = false) {
+	function initialize_user_prefs($uid, $profile = false) {
 
-		$uid = db_escape_string($link, $uid);
+		$uid = db_escape_string($uid);
 
 		if (!$profile) {
 			$profile = "NULL";
@@ -573,13 +592,13 @@
 			$profile_qpart = "AND profile = '$profile'";
 		}
 
-		if (get_schema_version($link) < 63) $profile_qpart = "";
+		if (get_schema_version() < 63) $profile_qpart = "";
 
-		db_query($link, "BEGIN");
+		db_query("BEGIN");
 
-		$result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
+		$result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
 
-		$u_result = db_query($link, "SELECT pref_name
+		$u_result = db_query("SELECT pref_name
 			FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 
 		$active_prefs = array();
@@ -592,16 +611,16 @@
 			if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 //				print "adding " . $line["pref_name"] . "<br>";
 
-				$line["def_value"] = db_escape_string($link, $line["def_value"]);
-				$line["pref_name"] = db_escape_string($link, $line["pref_name"]);
+				$line["def_value"] = db_escape_string($line["def_value"]);
+				$line["pref_name"] = db_escape_string($line["pref_name"]);
 
-				if (get_schema_version($link) < 63) {
-					db_query($link, "INSERT INTO ttrss_user_prefs
+				if (get_schema_version() < 63) {
+					db_query("INSERT INTO ttrss_user_prefs
 						(owner_uid,pref_name,value) VALUES
 						('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 
 				} else {
-					db_query($link, "INSERT INTO ttrss_user_prefs
+					db_query("INSERT INTO ttrss_user_prefs
 						(owner_uid,pref_name,value, profile) VALUES
 						('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 				}
@@ -609,7 +628,7 @@
 			}
 		}
 
-		db_query($link, "COMMIT");
+		db_query("COMMIT");
 
 	}
 
@@ -623,13 +642,12 @@
 		return "";
 	}
 
-	function authenticate_user($link, $login, $password, $check_only = false) {
+	function authenticate_user($login, $password, $check_only = false) {
 
 		if (!SINGLE_USER_MODE) {
 			$user_id = false;
 
-			global $pluginhost;
-			foreach ($pluginhost->get_hooks($pluginhost::HOOK_AUTH_USER) as $plugin) {
+			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
 
 				$user_id = (int) $plugin->authenticate($login, $password);
 
@@ -643,16 +661,16 @@
 				@session_start();
 
 				$_SESSION["uid"] = $user_id;
-				$_SESSION["version"] = VERSION;
+				$_SESSION["version"] = VERSION_STATIC;
 
-				$result = db_query($link, "SELECT login,access_level,pwd_hash FROM ttrss_users
+				$result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
 					WHERE id = '$user_id'");
 
 				$_SESSION["name"] = db_fetch_result($result, 0, "login");
 				$_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 				$_SESSION["csrf_token"] = sha1(uniqid(rand(), true));
 
-				db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
+				db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 					$_SESSION["uid"]);
 
 				$_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
@@ -661,7 +679,7 @@
 
 				$_SESSION["last_version_check"] = time();
 
-				initialize_user_prefs($link, $_SESSION["uid"]);
+				initialize_user_prefs($_SESSION["uid"]);
 
 				return true;
 			}
@@ -685,7 +703,7 @@
 
 			$_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 
-			initialize_user_prefs($link, $_SESSION["uid"]);
+			initialize_user_prefs($_SESSION["uid"]);
 
 			return true;
 		}
@@ -714,13 +732,13 @@
 
 	// user preferences are checked on every login, not here
 
-	function initialize_user($link, $uid) {
+	function initialize_user($uid) {
 
-		db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
+		db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 			values ('$uid', 'Tiny Tiny RSS: New Releases',
 			'http://tt-rss.org/releases.rss')");
 
-		db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
+		db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 			values ('$uid', 'Tiny Tiny RSS: Forum',
 				'http://tt-rss.org/forum/rss.php')");
 	}
@@ -736,70 +754,61 @@
 		return $csrf_token == $_SESSION['csrf_token'];
 	}
 
-	function load_user_plugins($link, $owner_uid) {
+	function load_user_plugins($owner_uid) {
 		if ($owner_uid) {
-			$plugins = get_pref($link, "_ENABLED_PLUGINS", $owner_uid);
+			$plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
 
-			global $pluginhost;
-			$pluginhost->load($plugins, $pluginhost::KIND_USER, $owner_uid);
+			PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
 
-			if (get_schema_version($link) > 100) {
-				$pluginhost->load_data();
+			if (get_schema_version() > 100) {
+				PluginHost::getInstance()->load_data();
 			}
 		}
 	}
 
-	function login_sequence($link) {
-		$_SESSION["prefs_cache"] = false;
-
+	function login_sequence() {
 		if (SINGLE_USER_MODE) {
 			@session_start();
-			authenticate_user($link, "admin", null);
-			cache_prefs($link);
-			load_user_plugins($link, $_SESSION["uid"]);
+			authenticate_user("admin", null);
+			load_user_plugins($_SESSION["uid"]);
 		} else {
-			if (!validate_session($link)) $_SESSION["uid"] = false;
+			if (!validate_session()) $_SESSION["uid"] = false;
 
 			if (!$_SESSION["uid"]) {
 
-				if (AUTH_AUTO_LOGIN && authenticate_user($link, null, null)) {
-				    $_SESSION["ref_schema_version"] = get_schema_version($link, true);
+				if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
+				    $_SESSION["ref_schema_version"] = get_schema_version(true);
 				} else {
-					 authenticate_user($link, null, null, true);
+					 authenticate_user(null, null, true);
 				}
 
 				if (!$_SESSION["uid"]) {
 					@session_destroy();
 					setcookie(session_name(), '', time()-42000, '/');
 
-					render_login_form($link);
+					render_login_form();
 					exit;
 				}
 
 			} else {
 				/* bump login timestamp */
-				db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
+				db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 					$_SESSION["uid"]);
 				$_SESSION["last_login_update"] = time();
 			}
 
-			if ($_SESSION["uid"] && $_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
-				setcookie("ttrss_lang", $_SESSION["language"],
-					time() + SESSION_COOKIE_LIFETIME);
-			}
-
 			if ($_SESSION["uid"]) {
-				cache_prefs($link);
-				load_user_plugins($link, $_SESSION["uid"]);
+				startup_gettext();
+				load_user_plugins($_SESSION["uid"]);
 
 				/* cleanup ccache */
 
-				db_query($link, "DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
+				db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
 					$_SESSION["uid"] . " AND
 						(SELECT COUNT(id) FROM ttrss_feeds WHERE
 							ttrss_feeds.id = feed_id) = 0");
 
-				db_query($link, "DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
+				db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
 					$_SESSION["uid"] . " AND
 						(SELECT COUNT(id) FROM ttrss_feed_categories WHERE
 							ttrss_feed_categories.id = feed_id) = 0");
@@ -835,56 +844,62 @@
 		return $dt->format('U') + $dest_tz->getOffset($dt);
 	}
 
-	function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
+	function make_local_datetime($timestamp, $long, $owner_uid = false,
 					$no_smart_dt = false) {
 
 		if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 		if (!$timestamp) $timestamp = '1970-01-01 0:00';
 
 		global $utc_tz;
-		global $tz_offset;
+		global $user_tz;
+
+		if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
+
+		$timestamp = substr($timestamp, 0, 19);
 
 		# We store date in UTC internally
 		$dt = new DateTime($timestamp, $utc_tz);
 
-		if ($tz_offset == -1) {
+		$user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
 
-			$user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
+		if ($user_tz_string != 'Automatic') {
 
 			try {
-				$user_tz = new DateTimeZone($user_tz_string);
+				if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
 			} catch (Exception $e) {
 				$user_tz = $utc_tz;
 			}
 
 			$tz_offset = $user_tz->getOffset($dt);
+		} else {
+			$tz_offset = (int) -$_SESSION["clientTzOffset"];
 		}
 
 		$user_timestamp = $dt->format('U') + $tz_offset;
 
 		if (!$no_smart_dt) {
-			return smart_date_time($link, $user_timestamp,
+			return smart_date_time($user_timestamp,
 				$tz_offset, $owner_uid);
 		} else {
 			if ($long)
-				$format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
+				$format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 			else
-				$format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
+				$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 
 			return date($format, $user_timestamp);
 		}
 	}
 
-	function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
+	function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false) {
 		if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 
 		if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
 			return date("G:i", $timestamp);
 		} else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
-			$format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
+			$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 			return date($format, $timestamp);
 		} else {
-			$format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
+			$format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 			return date($format, $timestamp);
 		}
 	}
@@ -908,11 +923,11 @@
 	// Session caching removed due to causing wrong redirects to upgrade
 	// script when get_schema_version() is called on an obsolete session
 	// created on a previous schema version.
-	function get_schema_version($link, $nocache = false) {
+	function get_schema_version($nocache = false) {
 		global $schema_version;
 
-		if (!$schema_version) {
-			$result = db_query($link, "SELECT schema_version FROM ttrss_version");
+		if (!$schema_version && !$nocache) {
+			$result = db_query("SELECT schema_version FROM ttrss_version");
 			$version = db_fetch_result($result, 0, "schema_version");
 			$schema_version = $version;
 			return $version;
@@ -921,24 +936,24 @@
 		}
 	}
 
-	function sanity_check($link) {
+	function sanity_check() {
 		require_once 'errors.php';
 
 		$error_code = 0;
-		$schema_version = get_schema_version($link, true);
+		$schema_version = get_schema_version(true);
 
 		if ($schema_version != SCHEMA_VERSION) {
 			$error_code = 5;
 		}
 
 		if (DB_TYPE == "mysql") {
-			$result = db_query($link, "SELECT true", false);
+			$result = db_query("SELECT true", false);
 			if (db_num_rows($result) != 1) {
 				$error_code = 10;
 			}
 		}
 
-		if (db_escape_string($link, "testTEST") != "testTEST") {
+		if (db_escape_string("testTEST") != "testTEST") {
 			$error_code = 12;
 		}
 
@@ -997,7 +1012,7 @@
 		}
 	}
 
-	function catchup_feed($link, $feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
+	function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
 
 			if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 
@@ -1039,7 +1054,7 @@
 					if ($feed >= 0) {
 
 						if ($feed > 0) {
-							$children = getChildCategories($link, $feed, $owner_uid);
+							$children = getChildCategories($feed, $owner_uid);
 							array_push($children, $feed);
 
 							$children = join(",", $children);
@@ -1049,7 +1064,7 @@
 							$cat_qpart = "cat_id IS NULL";
 						}
 
-						db_query($link, "UPDATE ttrss_user_entries
+						db_query("UPDATE ttrss_user_entries
 							SET unread = false, last_read = NOW() WHERE ref_id IN
 								(SELECT id FROM
 									(SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
@@ -1058,7 +1073,7 @@
 
 					} else if ($feed == -2) {
 
-						db_query($link, "UPDATE ttrss_user_entries
+						db_query("UPDATE ttrss_user_entries
 							SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
 								FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
 								AND unread = true AND $date_qpart AND owner_uid = $owner_uid");
@@ -1066,7 +1081,7 @@
 
 				} else if ($feed > 0) {
 
-					db_query($link, "UPDATE ttrss_user_entries
+					db_query("UPDATE ttrss_user_entries
 						SET unread = false, last_read = NOW() WHERE ref_id IN
 							(SELECT id FROM
 								(SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
@@ -1075,7 +1090,7 @@
 				} else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
 
 					if ($feed == -1) {
-						db_query($link, "UPDATE ttrss_user_entries
+						db_query("UPDATE ttrss_user_entries
 							SET unread = false, last_read = NOW() WHERE ref_id IN
 								(SELECT id FROM
 									(SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
@@ -1083,7 +1098,7 @@
 					}
 
 					if ($feed == -2) {
-						db_query($link, "UPDATE ttrss_user_entries
+						db_query("UPDATE ttrss_user_entries
 							SET unread = false, last_read = NOW() WHERE ref_id IN
 								(SELECT id FROM
 									(SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
@@ -1092,7 +1107,7 @@
 
 					if ($feed == -3) {
 
-						$intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
+						$intl = get_pref("FRESH_ARTICLE_MAX_AGE");
 
 						if (DB_TYPE == "pgsql") {
 							$match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
@@ -1101,7 +1116,7 @@
 								INTERVAL $intl HOUR) ";
 						}
 
-						db_query($link, "UPDATE ttrss_user_entries
+						db_query("UPDATE ttrss_user_entries
 							SET unread = false, last_read = NOW() WHERE ref_id IN
 								(SELECT id FROM
 									(SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
@@ -1109,7 +1124,7 @@
 					}
 
 					if ($feed == -4) {
-						db_query($link, "UPDATE ttrss_user_entries
+						db_query("UPDATE ttrss_user_entries
 							SET unread = false, last_read = NOW() WHERE ref_id IN
 								(SELECT id FROM
 									(SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
@@ -1120,7 +1135,7 @@
 
 					$label_id = feed_to_label_id($feed);
 
-					db_query($link, "UPDATE ttrss_user_entries
+					db_query("UPDATE ttrss_user_entries
 						SET unread = false, last_read = NOW() WHERE ref_id IN
 							(SELECT id FROM
 								(SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
@@ -1129,10 +1144,10 @@
 
 				}
 
-				ccache_update($link, $feed, $owner_uid, $cat_view);
+				ccache_update($feed, $owner_uid, $cat_view);
 
 			} else { // tag
-				db_query($link, "UPDATE ttrss_user_entries
+				db_query("UPDATE ttrss_user_entries
 					SET unread = false, last_read = NOW() WHERE ref_id IN
 						(SELECT id FROM
 							(SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
@@ -1142,18 +1157,18 @@
 			}
 	}
 
-	function getAllCounters($link) {
-		$data = getGlobalCounters($link);
+	function getAllCounters() {
+		$data = getGlobalCounters();
 
-		$data = array_merge($data, getVirtCounters($link));
-		$data = array_merge($data, getLabelCounters($link));
-		$data = array_merge($data, getFeedCounters($link, $active_feed));
-		$data = array_merge($data, getCategoryCounters($link));
+		$data = array_merge($data, getVirtCounters());
+		$data = array_merge($data, getLabelCounters());
+		$data = array_merge($data, getFeedCounters());
+		$data = array_merge($data, getCategoryCounters());
 
 		return $data;
 	}
 
-	function getCategoryTitle($link, $cat_id) {
+	function getCategoryTitle($cat_id) {
 
 		if ($cat_id == -1) {
 			return __("Special");
@@ -1161,7 +1176,7 @@
 			return __("Labels");
 		} else {
 
-			$result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
+			$result = db_query("SELECT title FROM ttrss_feed_categories WHERE
 				id = '$cat_id'");
 
 			if (db_num_rows($result) == 1) {
@@ -1173,17 +1188,17 @@
 	}
 
 
-	function getCategoryCounters($link) {
+	function getCategoryCounters() {
 		$ret_arr = array();
 
 		/* Labels category */
 
 		$cv = array("id" => -2, "kind" => "cat",
-			"counter" => getCategoryUnread($link, -2));
+			"counter" => getCategoryUnread(-2));
 
 		array_push($ret_arr, $cv);
 
-		$result = db_query($link, "SELECT id AS cat_id, value AS unread,
+		$result = db_query("SELECT id AS cat_id, value AS unread,
 			(SELECT COUNT(id) FROM ttrss_feed_categories AS c2
 				WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
 			FROM ttrss_feed_categories, ttrss_cat_counters_cache
@@ -1195,7 +1210,7 @@
 			$line["cat_id"] = (int) $line["cat_id"];
 
 			if ($line["num_children"] > 0) {
-				$child_counter = getCategoryChildrenUnread($link, $line["cat_id"], $_SESSION["uid"]);
+				$child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
 			} else {
 				$child_counter = 0;
 			}
@@ -1209,7 +1224,7 @@
 		/* Special case: NULL category doesn't actually exist in the DB */
 
 		$cv = array("id" => 0, "kind" => "cat",
-			"counter" => (int) ccache_find($link, 0, $_SESSION["uid"], true));
+			"counter" => (int) ccache_find(0, $_SESSION["uid"], true));
 
 		array_push($ret_arr, $cv);
 
@@ -1217,23 +1232,23 @@
 	}
 
 	// only accepts real cats (>= 0)
-	function getCategoryChildrenUnread($link, $cat, $owner_uid = false) {
+	function getCategoryChildrenUnread($cat, $owner_uid = false) {
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
-		$result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
+		$result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
 				AND owner_uid = $owner_uid");
 
 		$unread = 0;
 
 		while ($line = db_fetch_assoc($result)) {
-			$unread += getCategoryUnread($link, $line["id"], $owner_uid);
-			$unread += getCategoryChildrenUnread($link, $line["id"], $owner_uid);
+			$unread += getCategoryUnread($line["id"], $owner_uid);
+			$unread += getCategoryChildrenUnread($line["id"], $owner_uid);
 		}
 
 		return $unread;
 	}
 
-	function getCategoryUnread($link, $cat, $owner_uid = false) {
+	function getCategoryUnread($cat, $owner_uid = false) {
 
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
@@ -1245,7 +1260,7 @@
 				$cat_query = "cat_id IS NULL";
 			}
 
-			$result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
+			$result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
 					AND owner_uid = " . $owner_uid);
 
 			$cat_feeds = array();
@@ -1257,7 +1272,7 @@
 
 			$match_part = implode(" OR ", $cat_feeds);
 
-			$result = db_query($link, "SELECT COUNT(int_id) AS unread
+			$result = db_query("SELECT COUNT(int_id) AS unread
 				FROM ttrss_user_entries
 				WHERE	unread = true AND ($match_part)
 				AND owner_uid = " . $owner_uid);
@@ -1271,10 +1286,10 @@
 
 			return $unread;
 		} else if ($cat == -1) {
-			return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
+			return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
 		} else if ($cat == -2) {
 
-			$result = db_query($link, "
+			$result = db_query("
 				SELECT COUNT(unread) AS unread FROM
 					ttrss_user_entries, ttrss_user_labels2
 				WHERE article_id = ref_id AND unread = true
@@ -1287,14 +1302,14 @@
 		}
 	}
 
-	function getFeedUnread($link, $feed, $is_cat = false) {
-		return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
+	function getFeedUnread($feed, $is_cat = false) {
+		return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
 	}
 
-	function getLabelUnread($link, $label_id, $owner_uid = false) {
+	function getLabelUnread($label_id, $owner_uid = false) {
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
-		$result = db_query($link, "SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
+		$result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
 			WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
 
 		if (db_num_rows($result) != 0) {
@@ -1304,7 +1319,7 @@
 		}
 	}
 
-	function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
+	function getFeedArticles($feed, $is_cat = false, $unread_only = false,
 		$owner_uid = false) {
 
 		$n_feed = (int) $feed;
@@ -1319,14 +1334,14 @@
 		}
 
 		if ($is_cat) {
-			return getCategoryUnread($link, $n_feed, $owner_uid);
+			return getCategoryUnread($n_feed, $owner_uid);
 		} else if ($n_feed == -6) {
 			return 0;
 		} else if ($feed != "0" && $n_feed == 0) {
 
-			$feed = db_escape_string($link, $feed);
+			$feed = db_escape_string($feed);
 
-			$result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
+			$result = db_query("SELECT SUM((SELECT COUNT(int_id)
 				FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
 					AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
 				WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
@@ -1339,7 +1354,7 @@
 		} else if ($n_feed == -3) {
 			$match_part = "unread = true AND score >= 0";
 
-			$intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
+			$intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
 
 			if (DB_TYPE == "pgsql") {
 				$match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
@@ -1363,7 +1378,7 @@
 
 			$label_id = feed_to_label_id($feed);
 
-			return getLabelUnread($link, $label_id, $owner_uid);
+			return getLabelUnread($label_id, $owner_uid);
 
 		}
 
@@ -1382,11 +1397,11 @@
 
 			//echo "[$feed/$query]\n";
 
-			$result = db_query($link, $query);
+			$result = db_query($query);
 
 		} else {
 
-			$result = db_query($link, "SELECT COUNT(post_int_id) AS unread
+			$result = db_query("SELECT COUNT(post_int_id) AS unread
 				FROM ttrss_tags,ttrss_user_entries,ttrss_entries
 				WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
 				AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
@@ -1397,13 +1412,13 @@
 		return $unread;
 	}
 
-	function getGlobalUnread($link, $user_id = false) {
+	function getGlobalUnread($user_id = false) {
 
 		if (!$user_id) {
 			$user_id = $_SESSION["uid"];
 		}
 
-		$result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
+		$result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
 			WHERE owner_uid = '$user_id' AND feed_id > 0");
 
 		$c_id = db_fetch_result($result, 0, "c_id");
@@ -1411,11 +1426,11 @@
 		return $c_id;
 	}
 
-	function getGlobalCounters($link, $global_unread = -1) {
+	function getGlobalCounters($global_unread = -1) {
 		$ret_arr = array();
 
 		if ($global_unread == -1) {
-			$global_unread = getGlobalUnread($link);
+			$global_unread = getGlobalUnread();
 		}
 
 		$cv = array("id" => "global-unread",
@@ -1423,7 +1438,7 @@
 
 		array_push($ret_arr, $cv);
 
-		$result = db_query($link, "SELECT COUNT(id) AS fn FROM
+		$result = db_query("SELECT COUNT(id) AS fn FROM
 			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
 
 		$subscribed_feeds = db_fetch_result($result, 0, "fn");
@@ -1436,48 +1451,43 @@
 		return $ret_arr;
 	}
 
-	function getVirtCounters($link) {
+	function getVirtCounters() {
 
 		$ret_arr = array();
 
 		for ($i = 0; $i >= -4; $i--) {
 
-			$count = getFeedUnread($link, $i);
+			$count = getFeedUnread($i);
 
 			$cv = array("id" => $i,
 				"counter" => (int) $count);
 
-//			if (get_pref($link, 'EXTENDED_FEEDLIST'))
-//				$cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
+//			if (get_pref('EXTENDED_FEEDLIST'))
+//				$cv["xmsg"] = getFeedArticles($i)." ".__("total");
 
 			array_push($ret_arr, $cv);
 		}
 
-		global $pluginhost;
-
-		if ($pluginhost) {
-			$feeds = $pluginhost->get_feeds(-1);
-
-			if (is_array($feeds)) {
-				foreach ($feeds as $feed) {
-					$cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
-						"counter" => $feed['sender']->get_unread($feed['id']));
+		$feeds = PluginHost::getInstance()->get_feeds(-1);
 
+		if (is_array($feeds)) {
+			foreach ($feeds as $feed) {
+				$cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
+					"counter" => $feed['sender']->get_unread($feed['id']));
 					array_push($ret_arr, $cv);
-				}
 			}
 		}
 
 		return $ret_arr;
 	}
 
-	function getLabelCounters($link, $descriptions = false) {
+	function getLabelCounters($descriptions = false) {
 
 		$ret_arr = array();
 
 		$owner_uid = $_SESSION["uid"];
 
-		$result = db_query($link, "SELECT id,caption,COUNT(unread) AS unread
+		$result = db_query("SELECT id,caption,COUNT(unread) AS unread
 			FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
 				(ttrss_labels2.id = label_id)
 				LEFT JOIN ttrss_user_entries ON (ref_id = article_id AND unread = true
@@ -1498,8 +1508,8 @@
 			if ($descriptions)
 				$cv["description"] = $label_name;
 
-//			if (get_pref($link, 'EXTENDED_FEEDLIST'))
-//				$cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
+//			if (get_pref('EXTENDED_FEEDLIST'))
+//				$cv["xmsg"] = getFeedArticles($id)." ".__("total");
 
 			array_push($ret_arr, $cv);
 		}
@@ -1507,7 +1517,7 @@
 		return $ret_arr;
 	}
 
-	function getFeedCounters($link, $active_feed = false) {
+	function getFeedCounters($active_feed = false) {
 
 		$ret_arr = array();
 
@@ -1520,7 +1530,7 @@
 				AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
 				AND ttrss_counters_cache.feed_id = id";
 
-		$result = db_query($link, $query);
+		$result = db_query($query);
 		$fctrs_modified = false;
 
 		while ($line = db_fetch_assoc($result)) {
@@ -1529,7 +1539,7 @@
 			$count = $line["count"];
 			$last_error = htmlspecialchars($line["last_error"]);
 
-			$last_updated = make_local_datetime($link, $line['last_updated'], false);
+			$last_updated = make_local_datetime($line['last_updated'], false);
 
 			$has_img = feed_has_icon($id);
 
@@ -1544,8 +1554,8 @@
 			if ($last_error)
 				$cv["error"] = $last_error;
 
-//			if (get_pref($link, 'EXTENDED_FEEDLIST'))
-//				$cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
+//			if (get_pref('EXTENDED_FEEDLIST'))
+//				$cv["xmsg"] = getFeedArticles($id)." ".__("total");
 
 			if ($active_feed && $id == $active_feed)
 				$cv["title"] = truncate_string($line["title"], 30);
@@ -1557,8 +1567,8 @@
 		return $ret_arr;
 	}
 
-	function get_pgsql_version($link) {
-		$result = db_query($link, "SELECT version() AS version");
+	function get_pgsql_version() {
+		$result = db_query("SELECT version() AS version");
 		$version = explode(" ", db_fetch_result($result, 0, "version"));
 		return $version[1];
 	}
@@ -1574,8 +1584,9 @@
 	 *                     Here you should call extractfeedurls in rpc-backend
 	 *                     to get all possible feeds.
 	 *                 5 - Couldn't download the URL content.
+	 *                 6 - Content is an invalid XML.
 	 */
-	function subscribe_to_feed($link, $url, $cat_id = 0,
+	function subscribe_to_feed($url, $cat_id = 0,
 			$auth_login = '', $auth_pass = '') {
 
 		global $fetch_last_error;
@@ -1604,31 +1615,53 @@
 			$url = key($feedUrls);
 		}
 
+		/* libxml_use_internal_errors(true);
+		$doc = new DOMDocument();
+		$doc->loadXML($contents);
+		$error = libxml_get_last_error();
+		libxml_clear_errors();
+
+		if ($error) {
+			$error_message = format_libxml_error($error);
+
+			return array("code" => 6, "message" => $error_message);
+		} */
+
 		if ($cat_id == "0" || !$cat_id) {
 			$cat_qpart = "NULL";
 		} else {
 			$cat_qpart = "'$cat_id'";
 		}
 
-		$result = db_query($link,
+		$result = db_query(
 			"SELECT id FROM ttrss_feeds
 			WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
 
+		if (strlen(FEED_CRYPT_KEY) > 0) {
+			require_once "crypt.php";
+			$auth_pass = substr(encrypt_string($auth_pass), 0, 250);
+			$auth_pass_encrypted = 'true';
+		} else {
+			$auth_pass_encrypted = 'false';
+		}
+
+		$auth_pass = db_escape_string($auth_pass);
+
 		if (db_num_rows($result) == 0) {
-			$result = db_query($link,
+			$result = db_query(
 				"INSERT INTO ttrss_feeds
-					(owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
+					(owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
 				VALUES ('".$_SESSION["uid"]."', '$url',
-				'[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0)");
+				'[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
 
-			$result = db_query($link,
+			$result = db_query(
 				"SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
 					AND owner_uid = " . $_SESSION["uid"]);
 
 			$feed_id = db_fetch_result($result, 0, "id");
 
 			if ($feed_id) {
-				update_rss_feed($link, $feed_id, true);
+				update_rss_feed($feed_id, false, false, false, $contents);
 			}
 
 			return array("code" => 1);
@@ -1637,7 +1670,7 @@
 		}
 	}
 
-	function print_feed_select($link, $id, $default_id = "",
+	function print_feed_select($id, $default_id = "",
 		$attributes = "", $include_all_feeds = true,
 	  	$root_id = false, $nest_level = 0) {
 
@@ -1649,14 +1682,14 @@
 			}
 		}
 
-		if (get_pref($link, 'ENABLE_FEED_CATS')) {
+		if (get_pref('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,
+			$result = db_query("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
@@ -1673,10 +1706,10 @@
 					$line["id"], htmlspecialchars($line["title"]));
 
 				if ($line["num_children"] > 0)
-					print_feed_select($link, $id, $default_id, $attributes,
+					print_feed_select($id, $default_id, $attributes,
 						$include_all_feeds, $line["id"], $nest_level+1);
 
-				$feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
+				$feed_result = db_query("SELECT id,title FROM ttrss_feeds
 					WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
 
 				while ($fline = db_fetch_assoc($feed_result)) {
@@ -1693,12 +1726,13 @@
 			}
 
 			if (!$root_id) {
-				$is_selected = ($default_id == "CAT:0") ? "selected=\"1\"" : "";
+				$default_is_cat = ($default_id == "CAT:0");
+				$is_selected = $default_is_cat ? "selected=\"1\"" : "";
 
 				printf("<option $is_selected value='CAT:0'>%s</option>",
 					__("Uncategorized"));
 
-				$feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
+				$feed_result = db_query("SELECT id,title FROM ttrss_feeds
 					WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
 
 				while ($fline = db_fetch_assoc($feed_result)) {
@@ -1715,7 +1749,7 @@
 			}
 
 		} else {
-			$result = db_query($link, "SELECT id,title FROM ttrss_feeds
+			$result = db_query("SELECT id,title FROM ttrss_feeds
 				WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
 
 			while ($line = db_fetch_assoc($result)) {
@@ -1732,7 +1766,7 @@
 		}
 	}
 
-	function print_feed_cat_select($link, $id, $default_id,
+	function print_feed_cat_select($id, $default_id,
 		$attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
 
 			if (!$root_id) {
@@ -1744,7 +1778,7 @@
 			else
 				$parent_qpart = "parent_cat IS NULL";
 
-			$result = db_query($link, "SELECT id,title,
+			$result = db_query("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
@@ -1765,7 +1799,7 @@
 						$line["id"], htmlspecialchars($line["title"]));
 
 				if ($line["num_children"] > 0)
-					print_feed_cat_select($link, $id, $default_id, $attributes,
+					print_feed_cat_select($id, $default_id, $attributes,
 						$include_all_cats, $line["id"], $nest_level+1);
 			}
 
@@ -1791,13 +1825,13 @@
 		return ($val == "on") ? "true" : "false";
 	}
 
-	function getFeedCatTitle($link, $id) {
+	function getFeedCatTitle($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
+			$result = db_query("SELECT ttrss_feed_categories.title
 				FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
 					cat_id = ttrss_feed_categories.id");
 			if (db_num_rows($result) == 1) {
@@ -1840,11 +1874,13 @@
 			}
 			break;
 		}
+
+		return false;
 	}
 
-	function getFeedTitle($link, $id, $cat = false) {
+	function getFeedTitle($id, $cat = false) {
 		if ($cat) {
-			return getCategoryTitle($link, $id);
+			return getCategoryTitle($id);
 		} else if ($id == -1) {
 			return __("Starred articles");
 		} else if ($id == -2) {
@@ -1859,7 +1895,7 @@
 			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'");
+			$result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
 			if (db_num_rows($result) == 1) {
 				return db_fetch_result($result, 0, "caption");
 			} else {
@@ -1867,7 +1903,7 @@
 			}
 
 		} else if (is_numeric($id) && $id > 0) {
-			$result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
+			$result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
 			if (db_num_rows($result) == 1) {
 				return db_fetch_result($result, 0, "title");
 			} else {
@@ -1878,7 +1914,7 @@
 		}
 	}
 
-	function make_init_params($link) {
+	function make_init_params() {
 		$params = array();
 
 		foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
@@ -1886,18 +1922,18 @@
 			"CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE",
 			"HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
 
-				 $params[strtolower($param)] = (int) get_pref($link, $param);
+				 $params[strtolower($param)] = (int) get_pref($param);
 		 }
 
 		$params["icons_url"] = ICONS_URL;
 		$params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
-		$params["default_view_mode"] = get_pref($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["default_view_mode"] = get_pref("_DEFAULT_VIEW_MODE");
+		$params["default_view_limit"] = (int) get_pref("_DEFAULT_VIEW_LIMIT");
+		$params["default_view_order_by"] = get_pref("_DEFAULT_VIEW_ORDER_BY");
 		$params["bw_limit"] = (int) $_SESSION["bw_limit"];
 		$params["label_base_index"] = (int) LABEL_BASE_INDEX;
 
-		$result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
+		$result = db_query("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
 			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
 
 		$max_feed_id = db_fetch_result($result, 0, "mid");
@@ -1906,8 +1942,8 @@
 		$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["collapsed_feedlist"] = (int) get_pref("_COLLAPSED_FEEDLIST");
+		$params["hotkeys"] = get_hotkeys_map();
 
 		$params["csrf_token"] = $_SESSION["csrf_token"];
 		$params["widescreen"] = (int) $_COOKIE["ttrss_widescreen"];
@@ -1917,7 +1953,7 @@
 		return $params;
 	}
 
-	function get_hotkeys_info($link) {
+	function get_hotkeys_info() {
 		$hotkeys = array(
 			__("Navigation") => array(
 				"next_feed" => __("Open next feed"),
@@ -1980,15 +2016,14 @@
 				"help_dialog" => __("Show help dialog"))
 			);
 
-		global $pluginhost;
-		foreach ($pluginhost->get_hooks($pluginhost::HOOK_HOTKEY_INFO) as $plugin) {
+		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_INFO) as $plugin) {
 			$hotkeys = $plugin->hook_hotkey_info($hotkeys);
 		}
 
 		return $hotkeys;
 	}
 
-	function get_hotkeys_map($link) {
+	function get_hotkeys_map() {
 		$hotkeys = array(
 //			"navigation" => array(
 				"k" => "next_feed",
@@ -2052,13 +2087,12 @@
 				"^(191)|Ctrl+/" => "help_dialog",
 			);
 
-		if (get_pref($link, 'COMBINED_DISPLAY_MODE')) {
+		if (get_pref('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) {
+		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_MAP) as $plugin) {
 			$hotkeys = $plugin->hook_hotkey_map($hotkeys);
 		}
 
@@ -2075,10 +2109,10 @@
 		return array($prefixes, $hotkeys);
 	}
 
-	function make_runtime_info($link) {
+	function make_runtime_info() {
 		$data = array();
 
-		$result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
+		$result = db_query("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
 			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
 
 		$max_feed_id = db_fetch_result($result, 0, "mid");
@@ -2087,8 +2121,8 @@
 		$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['last_article_id'] = getLastArticleId();
+		$data['cdm_expanded'] = get_pref('CDM_EXPANDED');
 
 		$data['dep_ts'] = calculate_dep_timestamp();
 		$data['reload_on_ts_change'] = !defined('_NO_RELOAD_ON_TS_CHANGE');
@@ -2121,7 +2155,7 @@
 		}
 
 		if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
-				$new_version_details = @check_for_update($link);
+				$new_version_details = @check_for_update();
 
 				$data['new_version_available'] = (int) ($new_version_details != false);
 
@@ -2132,7 +2166,7 @@
 		return $data;
 	}
 
-	function search_to_sql($link, $search) {
+	function search_to_sql($search) {
 
 		$search_query_part = "";
 
@@ -2153,7 +2187,7 @@
 			case "title":
 				if ($commandpair[1]) {
 					array_push($query_keywords, "($not (LOWER(ttrss_entries.title) LIKE '%".
-						db_escape_string($link, mb_strtolower($commandpair[1]))."%'))");
+						db_escape_string(mb_strtolower($commandpair[1]))."%'))");
 				} else {
 					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
 							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
@@ -2162,7 +2196,7 @@
 			case "author":
 				if ($commandpair[1]) {
 					array_push($query_keywords, "($not (LOWER(author) LIKE '%".
-						db_escape_string($link, mb_strtolower($commandpair[1]))."%'))");
+						db_escape_string(mb_strtolower($commandpair[1]))."%'))");
 				} else {
 					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
 							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
@@ -2176,7 +2210,7 @@
 						array_push($query_keywords, "($not (note IS NULL OR note = ''))");
 					else
 						array_push($query_keywords, "($not (LOWER(note) LIKE '%".
-							db_escape_string($link, mb_strtolower($commandpair[1]))."%'))");
+							db_escape_string(mb_strtolower($commandpair[1]))."%'))");
 				} else {
 					array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
 							OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
@@ -2209,7 +2243,7 @@
 			default:
 				if (strpos($k, "@") === 0) {
 
-					$user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
+					$user_tz_string = get_pref('USER_TIMEZONE', $_SESSION['uid']);
 					$orig_ts = strtotime(substr($k, 1));
 					$k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
 
@@ -2228,35 +2262,35 @@
 		return $search_query_part;
 	}
 
-	function getParentCategories($link, $cat, $owner_uid) {
+	function getParentCategories($cat, $owner_uid) {
 		$rv = array();
 
-		$result = db_query($link, "SELECT parent_cat FROM ttrss_feed_categories
+		$result = db_query("SELECT parent_cat FROM ttrss_feed_categories
 			WHERE id = '$cat' AND parent_cat IS NOT NULL AND owner_uid = $owner_uid");
 
 		while ($line = db_fetch_assoc($result)) {
 			array_push($rv, $line["parent_cat"]);
-			$rv = array_merge($rv, getParentCategories($link, $line["parent_cat"], $owner_uid));
+			$rv = array_merge($rv, getParentCategories($line["parent_cat"], $owner_uid));
 		}
 
 		return $rv;
 	}
 
-	function getChildCategories($link, $cat, $owner_uid) {
+	function getChildCategories($cat, $owner_uid) {
 		$rv = array();
 
-		$result = db_query($link, "SELECT id FROM ttrss_feed_categories
+		$result = db_query("SELECT id FROM ttrss_feed_categories
 			WHERE parent_cat = '$cat' AND owner_uid = $owner_uid");
 
 		while ($line = db_fetch_assoc($result)) {
 			array_push($rv, $line["id"]);
-			$rv = array_merge($rv, getChildCategories($link, $line["id"], $owner_uid));
+			$rv = array_merge($rv, getChildCategories($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, $ignore_vfeed_group = false) {
+	function queryFeedHeadlines($feed, $limit, $view_mode, $cat_view, $search, $search_mode, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false, $ignore_vfeed_group = false) {
 
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
@@ -2273,7 +2307,7 @@
 						$search_query_part = "ref_id = -1 AND ";
 
 				} else {
-					$search_query_part = search_to_sql($link, $search);
+					$search_query_part = search_to_sql($search);
 					$search_query_part .= " AND ";
 				}
 
@@ -2291,10 +2325,10 @@
 
 				$override_order = "updated DESC";
 
-				$filter_query_part = filter_to_sql($link, $filter, $owner_uid);
+				$filter_query_part = filter_to_sql($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,
+				$result = db_query("SELECT true AS true_val FROM ttrss_entries,
 					ttrss_user_entries, ttrss_feeds, ttrss_feed_categories
 					WHERE $filter_query_part LIMIT 1", false);
 
@@ -2327,10 +2361,10 @@
 					$view_query_part = " ";
 				} else if ($feed != -1) {
 
-					$unread = getFeedUnread($link, $feed, $cat_view);
+					$unread = getFeedUnread($feed, $cat_view);
 
 					if ($cat_view && $feed > 0 && $include_children)
-						$unread += getCategoryChildrenUnread($link, $feed);
+						$unread += getCategoryChildrenUnread($feed);
 
 					if ($unread > 0)
 			        $view_query_part = " unread = true AND ";
@@ -2376,7 +2410,7 @@
 
 				if ($feed > 0) {
 					if ($include_children) {
-						$subcats = getChildCategories($link, $feed, $owner_uid);
+						$subcats = getChildCategories($feed, $owner_uid);
 						array_push($subcats, $feed);
 						$cats_qpart = join(",", $subcats);
 					} else {
@@ -2396,7 +2430,7 @@
 					if ($feed > 0) {
 						if ($include_children) {
 							# sub-cats
-							$subcats = getChildCategories($link, $feed, $owner_uid);
+							$subcats = getChildCategories($feed, $owner_uid);
 
 							array_push($subcats, $feed);
 							$query_strategy_part = "cat_id IN (".
@@ -2459,7 +2493,7 @@
 			} else if ($feed == -3) { // fresh virtual feed
 				$query_strategy_part = "unread = true AND score >= 0";
 
-				$intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
+				$intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
 
 				if (DB_TYPE == "pgsql") {
 					$query_strategy_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
@@ -2503,17 +2537,18 @@
 				$feed_title = T_sprintf("Search results: %s", $search);
 			} else {
 				if ($cat_view) {
-					$feed_title = getCategoryTitle($link, $feed);
+					$feed_title = getCategoryTitle($feed);
 				} else {
 					if (is_numeric($feed) && $feed > 0) {
-						$result = db_query($link, "SELECT title,site_url,last_error
+						$result = db_query("SELECT title,site_url,last_error,last_updated
 							FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
 
 						$feed_title = db_fetch_result($result, 0, "title");
 						$feed_site_url = db_fetch_result($result, 0, "site_url");
 						$last_error = db_fetch_result($result, 0, "last_error");
+						$last_updated = db_fetch_result($result, 0, "last_updated");
 					} else {
-						$feed_title = getFeedTitle($link, $feed);
+						$feed_title = getFeedTitle($feed);
 					}
 				}
 			}
@@ -2533,7 +2568,7 @@
 				}
 
 				// proper override_order applied above
-				if ($vfeed_query_part && !$ignore_vfeed_group && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
+				if ($vfeed_query_part && !$ignore_vfeed_group && get_pref('VFEED_GROUP_BY_FEED', $owner_uid)) {
 					if (!$override_order) {
 						$order_by = "ttrss_feeds.title, $order_by";
 					} else {
@@ -2550,6 +2585,9 @@
 						LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
 				}
 
+				if ($vfeed_query_part)
+					$vfeed_query_part .= "favicon_avg_color,";
+
 				$query = "SELECT DISTINCT
 						date_entered,
 						guid,
@@ -2584,7 +2622,7 @@
 
 				if ($_REQUEST["debug"]) print $query;
 
-				$result = db_query($link, $query);
+				$result = db_query($query);
 
 			} else {
 				// browsing by tag
@@ -2653,14 +2691,14 @@
 				// $tag_sql = "tag_name = '$feed'";   DEFAULT way
 
 				//				error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
-				$result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
+				$result = db_query($select_qpart . $from_qpart . $where_qpart);
 			}
 
-			return array($result, $feed_title, $feed_site_url, $last_error);
+			return array($result, $feed_title, $feed_site_url, $last_error, $last_updated);
 
 	}
 
-	function sanitize($link, $str, $force_remove_images = false, $owner = false, $site_url = false) {
+	function sanitize($str, $force_remove_images = false, $owner = false, $site_url = false) {
 		if (!$owner) $owner = $_SESSION["uid"];
 
 		$res = trim($str); if (!$res) return '';
@@ -2703,7 +2741,7 @@
 				}
 
 				if ($entry->nodeName == 'img') {
-					if (($owner && get_pref($link, "STRIP_IMAGES", $owner)) ||
+					if (($owner && get_pref("STRIP_IMAGES", $owner)) ||
 							$force_remove_images || $_SESSION["bw_limit"]) {
 
 						$p = $doc->createElement('p');
@@ -2748,18 +2786,14 @@
 
 		$disallowed_attributes = array('id', 'style', 'class');
 
-		global $pluginhost;
-
-		if (isset($pluginhost)) {
-			foreach ($pluginhost->get_hooks($pluginhost::HOOK_SANITIZE) as $plugin) {
-				$retval = $plugin->hook_sanitize($doc, $site_url, $allowed_elements, $disallowed_attributes);
-				if (is_array($retval)) {
-					$doc = $retval[0];
-					$allowed_elements = $retval[1];
-					$disallowed_attributes = $retval[2];
-				} else {
-					$doc = $retval;
-				}
+		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SANITIZE) as $plugin) {
+			$retval = $plugin->hook_sanitize($doc, $site_url, $allowed_elements, $disallowed_attributes);
+			if (is_array($retval)) {
+				$doc = $retval[0];
+				$allowed_elements = $retval[1];
+				$disallowed_attributes = $retval[2];
+			} else {
+				$doc = $retval;
 			}
 		}
 
@@ -2770,7 +2804,8 @@
 	}
 
 	function strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes) {
-		$entries = $doc->getElementsByTagName("*");
+		$xpath = new DOMXPath($doc);
+		$entries = $xpath->query('//*');
 
 		foreach ($entries as $entry) {
 			if (!in_array($entry->nodeName, $allowed_elements)) {
@@ -2800,7 +2835,7 @@
 		return $doc;
 	}
 
-	function check_for_update($link) {
+	function check_for_update() {
 		if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
 			$version_url = "http://tt-rss.org/version.php?ver=" . VERSION .
 				"&iid=" . sha1(SELF_URL_PATH);
@@ -2820,7 +2855,7 @@
 		return false;
 	}
 
-	function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
+	function catchupArticlesById($ids, $cmode, $owner_uid = false) {
 
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 		if (count($ids) == 0) return;
@@ -2834,32 +2869,32 @@
 		$ids_qpart = join(" OR ", $tmp_ids);
 
 		if ($cmode == 0) {
-			db_query($link, "UPDATE ttrss_user_entries SET
+			db_query("UPDATE ttrss_user_entries SET
 			unread = false,last_read = NOW()
 			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
 		} else if ($cmode == 1) {
-			db_query($link, "UPDATE ttrss_user_entries SET
+			db_query("UPDATE ttrss_user_entries SET
 			unread = true
 			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
 		} else {
-			db_query($link, "UPDATE ttrss_user_entries SET
+			db_query("UPDATE ttrss_user_entries SET
 			unread = NOT unread,last_read = NOW()
 			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
 		}
 
 		/* update ccache */
 
-		$result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
+		$result = db_query("SELECT DISTINCT feed_id FROM ttrss_user_entries
 			WHERE ($ids_qpart) AND owner_uid = $owner_uid");
 
 		while ($line = db_fetch_assoc($result)) {
-			ccache_update($link, $line["feed_id"], $owner_uid);
+			ccache_update($line["feed_id"], $owner_uid);
 		}
 	}
 
-	function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
+	function get_article_tags($id, $owner_uid = 0, $tag_cache = false) {
 
-		$a_id = db_escape_string($link, $id);
+		$a_id = db_escape_string($id);
 
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
@@ -2868,13 +2903,12 @@
 			ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
 			ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
 
-		$obj_id = md5("TAGS:$owner_uid:$id");
 		$tags = array();
 
 		/* check cache first */
 
 		if ($tag_cache === false) {
-			$result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
+			$result = db_query("SELECT tag_cache FROM ttrss_user_entries
 				WHERE ref_id = '$id' AND owner_uid = $owner_uid");
 
 			$tag_cache = db_fetch_result($result, 0, "tag_cache");
@@ -2886,7 +2920,7 @@
 
 			/* do it the hard way */
 
-			$tmp_result = db_query($link, $query);
+			$tmp_result = db_query($query);
 
 			while ($tmp_line = db_fetch_assoc($tmp_result)) {
 				array_push($tags, $tmp_line["tag_name"]);
@@ -2894,9 +2928,9 @@
 
 			/* update the cache */
 
-			$tags_str = db_escape_string($link, join(",", $tags));
+			$tags_str = db_escape_string(join(",", $tags));
 
-			db_query($link, "UPDATE ttrss_user_entries
+			db_query("UPDATE ttrss_user_entries
 				SET tag_cache = '$tags_str' WHERE ref_id = '$id'
 				AND owner_uid = $owner_uid");
 		}
@@ -2924,36 +2958,29 @@
 		return true;
 	}
 
-	function render_login_form($link) {
+	function render_login_form() {
+		header('Cache-Control: public');
+
 		require_once "login_form.php";
 		exit;
 	}
 
-	// from http://developer.apple.com/internet/safari/faq.html
-	function no_cache_incantation() {
-		header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
-		header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
-		header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
-		header("Cache-Control: post-check=0, pre-check=0", false);
-		header("Pragma: no-cache"); // HTTP/1.0
-	}
-
 	function format_warning($msg, $id = "") {
 		global $link;
 		return "<div class=\"warning\" id=\"$id\">
-			<img src=\"images/sign_excl.svg\"><div class='inner'>$msg</div></div>";
+			<span><img src=\"images/sign_excl.svg\"></span><span>$msg</span></div>";
 	}
 
 	function format_notice($msg, $id = "") {
 		global $link;
 		return "<div class=\"notice\" id=\"$id\">
-			<img src=\"images/sign_info.svg\"><div class='inner'>$msg</div></div>";
+			<span><img src=\"images/sign_info.svg\"></span><span>$msg</span></div>";
 	}
 
 	function format_error($msg, $id = "") {
 		global $link;
 		return "<div class=\"error\" id=\"$id\">
-			<img src=\"images/sign_excl.svg\"><div class='inner'>$msg</div></div>";
+			<span><img src=\"images/sign_excl.svg\"></span><span>$msg</span></div>";
 	}
 
 	function print_notice($msg) {
@@ -2974,7 +3001,7 @@
 		return vsprintf(__(array_shift($args)), $args);
 	}
 
-	function format_inline_player($link, $url, $ctype) {
+	function format_inline_player($url, $ctype) {
 
 		$entry = "";
 
@@ -2983,19 +3010,12 @@
 		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();
+				$_SESSION["hasMp3"])) {
 
-				$entry .= "<audio id=\"$id\"\" controls style='display : none'>
+				$entry .= "<audio controls>
 					<source type=\"$ctype\" src=\"$url\"></source>
 					</audio>";
 
-				$entry .= "<span onclick=\"player(this)\"
-					title=\"".__("Click to play")."\" status=\"0\"
-					class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
-
 			} else {
 
 				$entry .= "<object type=\"application/x-shockwave-flash\"
@@ -3022,7 +3042,7 @@
 
 	}
 
-	function format_article($link, $id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
+	function format_article($id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
 		$rv = array();
@@ -3030,9 +3050,9 @@
 		$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 :( */
+		 * pass feed_id here? let's ignore the argument :(*/
 
-		$result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
+		$result = db_query("SELECT feed_id FROM ttrss_user_entries
 			WHERE ref_id = '$id'");
 
 		$feed_id = (int) db_fetch_result($result, 0, "feed_id");
@@ -3042,14 +3062,14 @@
 		//if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
 
 		if ($mark_as_read) {
-			$result = db_query($link, "UPDATE ttrss_user_entries
+			$result = db_query("UPDATE ttrss_user_entries
 				SET unread = false,last_read = NOW()
 				WHERE ref_id = '$id' AND owner_uid = $owner_uid");
 
-			ccache_update($link, $feed_id, $owner_uid);
+			ccache_update($feed_id, $owner_uid);
 		}
 
-		$result = db_query($link, "SELECT id,title,link,content,feed_id,comments,int_id,
+		$result = db_query("SELECT id,title,link,content,feed_id,comments,int_id,
 			".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
 			(SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
 			(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) as hide_images,
@@ -3069,14 +3089,12 @@
 
 			$tag_cache = $line["tag_cache"];
 
-			$line["tags"] = get_article_tags($link, $id, $owner_uid, $line["tag_cache"]);
+			$line["tags"] = get_article_tags($id, $owner_uid, $line["tag_cache"]);
 			unset($line["tag_cache"]);
 
-			$line["content"] = sanitize($link, $line["content"], false, $owner_uid,	$line["site_url"]);
+			$line["content"] = sanitize($line["content"], false, $owner_uid,	$line["site_url"]);
 
-			global $pluginhost;
-
-			foreach ($pluginhost->get_hooks($pluginhost::HOOK_RENDER_ARTICLE) as $p) {
+			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE) as $p) {
 				$line = $p->hook_render_article($line);
 			}
 
@@ -3115,7 +3133,7 @@
 				$entry_author = __(" - ") . $entry_author;
 			}
 
-			$parsed_updated = make_local_datetime($link, $line["updated"], true,
+			$parsed_updated = make_local_datetime($line["updated"], true,
 				$owner_uid, true);
 
 			$rv['content'] .= "<div class=\"postDate\">$parsed_updated</div>";
@@ -3151,8 +3169,7 @@
 					id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
 					position=\"below\">$tags_str_full</div>";
 
-				global $pluginhost;
-				foreach ($pluginhost->get_hooks($pluginhost::HOOK_ARTICLE_BUTTON) as $p) {
+				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_BUTTON) as $p) {
 					$rv['content'] .= $p->hook_article_button($line);
 				}
 
@@ -3163,8 +3180,7 @@
 			$rv['content'] .= "</div>";
 			$rv['content'] .= "<div clear='both'>";
 
-			global $pluginhost;
-			foreach ($pluginhost->get_hooks($pluginhost::HOOK_ARTICLE_LEFT_BUTTON) as $p) {
+			foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_LEFT_BUTTON) as $p) {
 				$rv['content'] .= $p->hook_article_left_button($line);
 			}
 
@@ -3172,7 +3188,7 @@
 
 			if ($line["orig_feed_id"]) {
 
-				$tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
+				$tmp_result = db_query("SELECT * FROM ttrss_archived_feeds
 					WHERE id = ".$line["orig_feed_id"]);
 
 				if (db_num_rows($tmp_result) != 0) {
@@ -3208,7 +3224,7 @@
 			$rv['content'] .= "<div class=\"postContent\">";
 
 			$rv['content'] .= $line["content"];
-			$rv['content'] .= format_article_enclosures($link, $id,
+			$rv['content'] .= format_article_enclosures($id,
 				sql_bool_to_bool($line["always_display_enclosures"]),
 				$line["content"],
 				sql_bool_to_bool($line["hide_images"]));
@@ -3233,7 +3249,7 @@
 
 	function print_checkpoint($n, $s) {
 		$ts = microtime(true);
-		echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
+		echo sprintf("<!-- CP[$n] %.4f seconds -->\n", $ts - $s);
 		return $ts;
 	}
 
@@ -3282,22 +3298,22 @@
 		}
 	} // function encrypt_password
 
-	function load_filters($link, $feed_id, $owner_uid, $action_id = false) {
+	function load_filters($feed_id, $owner_uid, $action_id = false) {
 		$filters = array();
 
-		$cat_id = (int)getFeedCategory($link, $feed_id);
+		$cat_id = (int)getFeedCategory($feed_id);
 
-		$result = db_query($link, "SELECT * FROM ttrss_filters2 WHERE
+		$result = db_query("SELECT * FROM ttrss_filters2 WHERE
 			owner_uid = $owner_uid AND enabled = true ORDER BY order_id, title");
 
 		$check_cats = join(",", array_merge(
-			getParentCategories($link, $cat_id, $owner_uid),
+			getParentCategories($cat_id, $owner_uid),
 			array($cat_id)));
 
 		while ($line = db_fetch_assoc($result)) {
 			$filter_id = $line["id"];
 
-			$result2 = db_query($link, "SELECT
+			$result2 = db_query("SELECT
 				r.reg_exp, r.inverse, r.feed_id, r.cat_id, r.cat_filter, t.name AS type_name
 				FROM ttrss_filters2_rules AS r,
 				ttrss_filter_types AS t
@@ -3320,7 +3336,7 @@
 				array_push($rules, $rule);
 			}
 
-			$result2 = db_query($link, "SELECT a.action_param,t.name AS type_name
+			$result2 = db_query("SELECT a.action_param,t.name AS type_name
 				FROM ttrss_filters2_actions AS a,
 				ttrss_filter_actions AS t
 				WHERE
@@ -3369,80 +3385,35 @@
 		return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
 	}
 
-	function init_connection($link) {
-		if ($link) {
-
-			if (DB_TYPE == "pgsql") {
-				pg_query($link, "set client_encoding = 'UTF-8'");
-				pg_set_client_encoding("UNICODE");
-				pg_query($link, "set datestyle = 'ISO, european'");
-				pg_query($link, "set TIME ZONE 0");
-			} else {
-				db_query($link, "SET time_zone = '+0:0'");
+	function init_plugins() {
+		PluginHost::getInstance()->load(PLUGINS, PluginHost::KIND_ALL);
 
-				if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
-					db_query($link, "SET NAMES " . MYSQL_CHARSET);
-				}
-			}
-
-			global $pluginhost;
-
-			$pluginhost = new PluginHost($link);
-			$pluginhost->load(PLUGINS, $pluginhost::KIND_ALL);
-
-			return true;
-		} else {
-			print "Unable to connect to database:" . db_last_error();
-			return false;
-		}
+		return true;
 	}
 
 	function format_tags_string($tags, $id) {
+		if (!is_array($tags) || count($tags) == 0) {
+			return __("no tags");
+		} else {
+			$maxtags = min(5, count($tags));
 
-		$tags_str = "";
-		$tags_nolinks_str = "";
-
-		$num_tags = 0;
-
-		$tag_limit = 6;
-
-		$formatted_tags = array();
-
-		foreach ($tags as $tag) {
-			$num_tags++;
-			$tag_escaped = str_replace("'", "\\'", $tag);
-
-			if (mb_strlen($tag) > 30) {
-				$tag = truncate_string($tag, 30);
-			}
-
-			$tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
-
-			array_push($formatted_tags, $tag_str);
-
-			$tmp_tags_str = implode(", ", $formatted_tags);
-
-			if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
-				break;
+			for ($i = 0; $i < $maxtags; $i++) {
+				$tags_str .= "<a href=\"#\" onclick=\"viewfeed('".$tags[$i]."'\")>" . $tags[$i] . "</a>, ";
 			}
-		}
 
-		$tags_str = implode(", ", $formatted_tags);
+			$tags_str = mb_substr($tags_str, 0, mb_strlen($tags_str)-2);
 
-		if ($num_tags < count($tags)) {
-			$tags_str .= ", &hellip;";
-		}
+			if (count($tags) > $maxtags)
+				$tags_str .= ", &hellip;";
 
-		if ($num_tags == 0) {
-			$tags_str = __("no tags");
+			return $tags_str;
 		}
-
-		return $tags_str;
-
 	}
 
 	function format_article_labels($labels, $id) {
 
+		if (!is_array($labels)) return '';
+
 		$labels_str = "";
 
 		foreach ($labels as $l) {
@@ -3465,7 +3436,7 @@
 	}
 
 
-	function get_feed_category($link, $feed_cat, $parent_cat_id = false) {
+	function get_feed_category($feed_cat, $parent_cat_id = false) {
 		if ($parent_cat_id) {
 			$parent_qpart = "parent_cat = '$parent_cat_id'";
 			$parent_insert = "'$parent_cat_id'";
@@ -3474,7 +3445,7 @@
 			$parent_insert = "NULL";
 		}
 
-		$result = db_query($link,
+		$result = db_query(
 			"SELECT id FROM ttrss_feed_categories
 			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
 
@@ -3485,11 +3456,11 @@
 		}
 	}
 
-	function add_feed_category($link, $feed_cat, $parent_cat_id = false) {
+	function add_feed_category($feed_cat, $parent_cat_id = false) {
 
 		if (!$feed_cat) return false;
 
-		db_query($link, "BEGIN");
+		db_query("BEGIN");
 
 		if ($parent_cat_id) {
 			$parent_qpart = "parent_cat = '$parent_cat_id'";
@@ -3501,17 +3472,17 @@
 
 		$feed_cat = mb_substr($feed_cat, 0, 250);
 
-		$result = db_query($link,
+		$result = db_query(
 			"SELECT id FROM ttrss_feed_categories
 			WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
 
 		if (db_num_rows($result) == 0) {
 
-			$result = db_query($link,
+			$result = db_query(
 				"INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
 				VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
 
-			db_query($link, "COMMIT");
+			db_query("COMMIT");
 
 			return true;
 		}
@@ -3519,8 +3490,8 @@
 		return false;
 	}
 
-	function getArticleFeed($link, $id) {
-		$result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
+	function getArticleFeed($id) {
+		$result = db_query("SELECT feed_id FROM ttrss_user_entries
 			WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
 
 		if (db_num_rows($result) != 0) {
@@ -3565,14 +3536,14 @@
 
 	}
 
-	function get_article_enclosures($link, $id) {
+	function get_article_enclosures($id) {
 
 		$query = "SELECT * FROM ttrss_enclosures
 			WHERE post_id = '$id' AND content_url != ''";
 
 		$rv = array();
 
-		$result = db_query($link, $query);
+		$result = db_query($query);
 
 		if (db_num_rows($result) > 0) {
 			while ($line = db_fetch_assoc($result)) {
@@ -3583,7 +3554,7 @@
 		return $rv;
 	}
 
-	function save_email_address($link, $email) {
+	function save_email_address($email) {
 		// FIXME: implement persistent storage of emails
 
 		if (!$_SESSION['stored_emails'])
@@ -3594,22 +3565,22 @@
 	}
 
 
-	function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
+	function get_feed_access_key($feed_id, $is_cat, $owner_uid = false) {
 
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
 		$sql_is_cat = bool_to_sql_bool($is_cat);
 
-		$result = db_query($link, "SELECT access_key FROM ttrss_access_keys
+		$result = db_query("SELECT access_key FROM ttrss_access_keys
 			WHERE feed_id = '$feed_id'	AND is_cat = $sql_is_cat
 			AND owner_uid = " . $owner_uid);
 
 		if (db_num_rows($result) == 1) {
 			return db_fetch_result($result, 0, "access_key");
 		} else {
-			$key = db_escape_string($link, sha1(uniqid(rand(), true)));
+			$key = db_escape_string(sha1(uniqid(rand(), true)));
 
-			$result = db_query($link, "INSERT INTO ttrss_access_keys
+			$result = db_query("INSERT INTO ttrss_access_keys
 				(access_key, feed_id, is_cat, owner_uid)
 				VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
 
@@ -3653,9 +3624,9 @@
 		return is_html(fetch_file_contents($url, false, $login, $pass));
 	}
 
-	function print_label_select($link, $name, $value, $attributes = "") {
+	function print_label_select($name, $value, $attributes = "") {
 
-		$result = db_query($link, "SELECT caption FROM ttrss_labels2
+		$result = db_query("SELECT caption FROM ttrss_labels2
 			WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
 
 		print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
@@ -3677,10 +3648,10 @@
 
 	}
 
-	function format_article_enclosures($link, $id, $always_display_enclosures,
+	function format_article_enclosures($id, $always_display_enclosures,
 					$article_content, $hide_images = false) {
 
-		$result = get_article_enclosures($link, $id);
+		$result = get_article_enclosures($id);
 		$rv = '';
 
 		if (count($result) > 0) {
@@ -3698,7 +3669,7 @@
 
 				$filename = substr($url, strrpos($url, "/")+1);
 
-				$player = format_inline_player($link, $url, $ctype);
+				$player = format_inline_player($url, $ctype);
 
 				if ($player) array_push($entries_inline, $player);
 
@@ -3719,7 +3690,7 @@
 				array_push($entries, $entry);
 			}
 
-			if ($_SESSION['uid'] && !get_pref($link, "STRIP_IMAGES") && !$_SESSION["bw_limit"]) {
+			if ($_SESSION['uid'] && !get_pref("STRIP_IMAGES") && !$_SESSION["bw_limit"]) {
 				if ($always_display_enclosures ||
 							!preg_match("/<img/i", $article_content)) {
 
@@ -3763,8 +3734,8 @@
 		return $rv;
 	}
 
-	function getLastArticleId($link) {
-		$result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
+	function getLastArticleId() {
+		$result = db_query("SELECT MAX(ref_id) AS id FROM ttrss_user_entries
 			WHERE owner_uid = " . $_SESSION["uid"]);
 
 		if (db_num_rows($result) == 1) {
@@ -3822,7 +3793,9 @@
 
 		$sphinxClient = new SphinxClient();
 
-		$sphinxClient->SetServer('localhost', 9312);
+		$sphinxpair = explode(":", SPHINX_SERVER, 2);
+
+		$sphinxClient->SetServer($sphinxpair[0], $sphinxpair[1]);
 		$sphinxClient->SetConnectTimeout(1);
 
 		$sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
@@ -3848,7 +3821,7 @@
 		return $ids;
 	}
 
-	function cleanup_tags($link, $days = 14, $limit = 1000) {
+	function cleanup_tags($days = 14, $limit = 1000) {
 
 		if (DB_TYPE == "pgsql") {
 			$interval_query = "date_updated < NOW() - INTERVAL '$days days'";
@@ -3866,7 +3839,7 @@
 				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);
+			$result = db_query($query);
 
 			$ids = array();
 
@@ -3877,8 +3850,8 @@
 			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);
+				$tmp_result = db_query("DELETE FROM ttrss_tags WHERE id IN ($ids)");
+				$tags_deleted += db_affected_rows($tmp_result);
 			} else {
 				break;
 			}
@@ -3889,8 +3862,8 @@
 		return $tags_deleted;
 	}
 
-	function print_user_stylesheet($link) {
-		$value = get_pref($link, 'USER_STYLESHEET');
+	function print_user_stylesheet() {
+		$value = get_pref('USER_STYLESHEET');
 
 		if ($value) {
 			print "<style type=\"text/css\">";
@@ -3946,7 +3919,7 @@
 			return $html;
 	}
 
-	function filter_to_sql($link, $filter, $owner_uid) {
+	function filter_to_sql($filter, $owner_uid) {
 		$query = array();
 
 		if (DB_TYPE == "pgsql")
@@ -3960,7 +3933,7 @@
 
 			if ($regexp_valid) {
 
-				$rule['reg_exp'] = db_escape_string($link, $rule['reg_exp']);
+				$rule['reg_exp'] = db_escape_string($rule['reg_exp']);
 
 					switch ($rule["type"]) {
 					case "title":
@@ -3993,13 +3966,13 @@
 				if (isset($rule['inverse'])) $qpart = "NOT ($qpart)";
 
 				if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) {
-					$qpart .= " AND feed_id = " . db_escape_string($link, $rule["feed_id"]);
+					$qpart .= " AND feed_id = " . db_escape_string($rule["feed_id"]);
 				}
 
 				if (isset($rule["cat_id"])) {
 
 					if ($rule["cat_id"] > 0) {
-						$children = getChildCategories($link, $rule["cat_id"], $owner_uid);
+						$children = getChildCategories($rule["cat_id"], $owner_uid);
 						array_push($children, $rule["cat_id"]);
 
 						$children = join(",", $children);
@@ -4073,8 +4046,8 @@
        return $tempname;
 	}
 
-	function getFeedCategory($link, $feed) {
-		$result = db_query($link, "SELECT cat_id FROM ttrss_feeds
+	function getFeedCategory($feed) {
+		$result = db_query("SELECT cat_id FROM ttrss_feeds
 			WHERE id = '$feed'");
 
 		if (db_num_rows($result) > 0) {
@@ -4091,7 +4064,8 @@
 
 	function geturl($url){
 
-		(function_exists('curl_init')) ? '' : die('cURL Must be installed for geturl function to work. Ask your host to enable it or uncomment extension=php_curl.dll in php.ini');
+		if (!function_exists('curl_init'))
+			return user_error('CURL Must be installed for geturl function to work. Ask your host to enable it or uncomment extension=php_curl.dll in php.ini', E_USER_ERROR);
 
 		$curl = curl_init();
 		$header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
@@ -4126,7 +4100,7 @@
 				preg_match("/(Location:|URI:)[^(\n)]*/", $header, $matches);
 				$url = trim(str_replace($matches[1],"",$matches[0]));
 				$url_parsed = parse_url($url);
-				return (isset($url_parsed))? geturl($url, $referer):'';
+				return (isset($url_parsed))? geturl($url):'';
 			}
 			$oline='';
 			foreach($status as $key=>$eline){$oline.='['.$key.']'.$eline.' ';}
@@ -4245,4 +4219,10 @@
 		return LABEL_BASE_INDEX - 1 + abs($feed);
 	}
 
+	function format_libxml_error($error) {
+		return T_sprintf("LibXML error %s at line %d (column %d): %s",
+				$error->code, $error->line, $error->column,
+				$error->message);
+	}
+
 ?>
diff --git a/include/labels.php b/include/labels.php
index 655b51555..c2a48a338 100644
--- a/include/labels.php
+++ b/include/labels.php
@@ -1,6 +1,6 @@
 <?php
-	function label_find_id($link, $label, $owner_uid) {
-		$result = db_query($link,
+	function label_find_id($label, $owner_uid) {
+		$result = db_query(
 			"SELECT id FROM ttrss_labels2 WHERE caption = '$label'
 				AND owner_uid = '$owner_uid' LIMIT 1");
 
@@ -11,12 +11,12 @@
 		}
 	}
 
-	function get_article_labels($link, $id, $owner_uid = false) {
+	function get_article_labels($id, $owner_uid = false) {
 		$rv = array();
 
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
-		$result = db_query($link, "SELECT label_cache FROM
+		$result = db_query("SELECT label_cache FROM
 			ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
 			$owner_uid);
 
@@ -33,7 +33,7 @@
 			}
 		}
 
-		$result = db_query($link,
+		$result = db_query(
 			"SELECT DISTINCT label_id,caption,fg_color,bg_color
 				FROM ttrss_labels2, ttrss_user_labels2
 			WHERE id = label_id
@@ -48,16 +48,16 @@
 		}
 
 		if (count($rv) > 0)
-			label_update_cache($link, $owner_uid, $id, $rv);
+			label_update_cache($owner_uid, $id, $rv);
 		else
-			label_update_cache($link, $owner_uid, $id, array("no-labels" => 1));
+			label_update_cache($owner_uid, $id, array("no-labels" => 1));
 
 		return $rv;
 	}
 
 
-	function label_find_caption($link, $label, $owner_uid) {
-		$result = db_query($link,
+	function label_find_caption($label, $owner_uid) {
+		$result = db_query(
 			"SELECT caption FROM ttrss_labels2 WHERE id = '$label'
 				AND owner_uid = '$owner_uid' LIMIT 1");
 
@@ -68,10 +68,10 @@
 		}
 	}
 
-	function get_all_labels($link, $owner_uid) {
+	function get_all_labels($owner_uid) {
 		$rv = array();
 
-		$result = db_query($link, "SELECT fg_color, bg_color, caption FROM ttrss_labels2 WHERE owner_uid = " . $owner_uid);
+		$result = db_query("SELECT fg_color, bg_color, caption FROM ttrss_labels2 WHERE owner_uid = " . $owner_uid);
 
 		while ($line = db_fetch_assoc($result)) {
 			array_push($rv, $line);
@@ -80,50 +80,50 @@
 		return $rv;
 	}
 
-	function label_update_cache($link, $owner_uid, $id, $labels = false, $force = false) {
+	function label_update_cache($owner_uid, $id, $labels = false, $force = false) {
 
 		if ($force)
-			label_clear_cache($link, $id);
+			label_clear_cache($id);
 
 		if (!$labels)
-			$labels = get_article_labels($link, $id);
+			$labels = get_article_labels($id);
 
-		$labels = db_escape_string($link, json_encode($labels));
+		$labels = db_escape_string(json_encode($labels));
 
-		db_query($link, "UPDATE ttrss_user_entries SET
+		db_query("UPDATE ttrss_user_entries SET
 			label_cache = '$labels' WHERE ref_id = '$id' AND  owner_uid = '$owner_uid'");
 
 	}
 
-	function label_clear_cache($link, $id) {
+	function label_clear_cache($id) {
 
-		db_query($link, "UPDATE ttrss_user_entries SET
+		db_query("UPDATE ttrss_user_entries SET
 			label_cache = '' WHERE ref_id = '$id'");
 
 	}
 
-	function label_remove_article($link, $id, $label, $owner_uid) {
+	function label_remove_article($id, $label, $owner_uid) {
 
-		$label_id = label_find_id($link, $label, $owner_uid);
+		$label_id = label_find_id($label, $owner_uid);
 
 		if (!$label_id) return;
 
-		$result = db_query($link,
+		$result = db_query(
 			"DELETE FROM ttrss_user_labels2
 			WHERE
 				label_id = '$label_id' AND
 				article_id = '$id'");
 
-		label_clear_cache($link, $id);
+		label_clear_cache($id);
 	}
 
-	function label_add_article($link, $id, $label, $owner_uid) {
+	function label_add_article($id, $label, $owner_uid) {
 
-		$label_id = label_find_id($link, $label, $owner_uid);
+		$label_id = label_find_id($label, $owner_uid);
 
 		if (!$label_id) return;
 
-		$result = db_query($link,
+		$result = db_query(
 			"SELECT
 				article_id FROM ttrss_labels2, ttrss_user_labels2
 			WHERE
@@ -133,66 +133,66 @@
 			LIMIT 1");
 
 		if (db_num_rows($result) == 0) {
-			db_query($link, "INSERT INTO ttrss_user_labels2
+			db_query("INSERT INTO ttrss_user_labels2
 				(label_id, article_id) VALUES ('$label_id', '$id')");
 		}
 
-		label_clear_cache($link, $id);
+		label_clear_cache($id);
 
 	}
 
-	function label_remove($link, $id, $owner_uid) {
+	function label_remove($id, $owner_uid) {
 		if (!$owner_uid) $owner_uid = $_SESSION["uid"];
 
-		db_query($link, "BEGIN");
+		db_query("BEGIN");
 
-		$result = db_query($link, "SELECT caption FROM ttrss_labels2
+		$result = db_query("SELECT caption FROM ttrss_labels2
 			WHERE id = '$id'");
 
 		$caption = db_fetch_result($result, 0, "caption");
 
-		$result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
+		$result = db_query("DELETE FROM ttrss_labels2 WHERE id = '$id'
 			AND owner_uid = " . $owner_uid);
 
-		if (db_affected_rows($link, $result) != 0 && $caption) {
+		if (db_affected_rows($result) != 0 && $caption) {
 
 			/* Remove access key for the label */
 
 			$ext_id = LABEL_BASE_INDEX - 1 - $id;
 
-			db_query($link, "DELETE FROM ttrss_access_keys WHERE
+			db_query("DELETE FROM ttrss_access_keys WHERE
 				feed_id = '$ext_id' AND owner_uid = $owner_uid");
 
 			/* Remove cached data */
 
-			db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
+			db_query("UPDATE ttrss_user_entries SET label_cache = ''
 				WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
 
 		}
 
-		db_query($link, "COMMIT");
+		db_query("COMMIT");
 	}
 
-	function label_create($link, $caption, $fg_color = '', $bg_color = '', $owner_uid = false) {
+	function label_create($caption, $fg_color = '', $bg_color = '', $owner_uid = false) {
 
 		if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 
-		db_query($link, "BEGIN");
+		db_query("BEGIN");
 
 		$result = false;
 
-		$result = db_query($link, "SELECT id FROM ttrss_labels2
+		$result = db_query("SELECT id FROM ttrss_labels2
 			WHERE caption = '$caption' AND owner_uid = $owner_uid");
 
 		if (db_num_rows($result) == 0) {
-			$result = db_query($link,
+			$result = db_query(
 				"INSERT INTO ttrss_labels2 (caption,owner_uid,fg_color,bg_color)
 					VALUES ('$caption', '$owner_uid', '$fg_color', '$bg_color')");
 
-			$result = db_affected_rows($link, $result) != 0;
+			$result = db_affected_rows($result) != 0;
 		}
 
-		db_query($link, "COMMIT");
+		db_query("COMMIT");
 
 		return $result;
 	}
diff --git a/include/login_form.php b/include/login_form.php
index 7ac7111c8..b7dae1016 100644
--- a/include/login_form.php
+++ b/include/login_form.php
@@ -188,6 +188,8 @@ function bwLimitChange(elem) {
 				value="<?php echo $_SESSION["fake_login"] ?>" />
 		</div>
 
+		<?php if (strpos(PLUGINS, "auth_internal") !== FALSE) { ?>
+
 		<div class="row">
 			<label><?php echo __("Password:") ?></label>
 			<input type="password" name="password" required="1"
@@ -197,13 +199,7 @@ function bwLimitChange(elem) {
 			<a class='forgotpass' href="public.php?op=forgotpass"><?php echo __("I forgot my password") ?></a>
 		</div>
 
-		<div class="row">
-			<label><?php echo __("Language:") ?></label>
-			<?php
-				print_select_hash("language", $_COOKIE["ttrss_lang"], get_translations(),
-					"style='width : 220px; margin : 0px' dojoType='dijit.form.Select'");
-			?>
-		</div>
+		<?php } ?>
 
 		<div class="row">
 			<label><?php echo __("Profile:") ?></label>
@@ -218,7 +214,11 @@ function bwLimitChange(elem) {
 			<label>&nbsp;</label>
 			<input dojoType="dijit.form.CheckBox" name="bw_limit" id="bw_limit" type="checkbox"
 				onchange="bwLimitChange(this)">
-			<label style='display : inline' for="bw_limit"><?php echo __("Use less traffic") ?></label>
+			<label id="bw_limit_label" style='display : inline' for="bw_limit"><?php echo __("Use less traffic") ?></label>
+		</div>
+
+		<div dojoType="dijit.Tooltip" connectId="bw_limit_label" position="below">
+<?php echo __("Does not display images in articles, reduces automatic refreshes."); ?>
 		</div>
 
 		<?php if (SESSION_COOKIE_LIFETIME > 0) { ?>
diff --git a/include/rssfuncs.php b/include/rssfuncs.php
index 727e42897..d5fc14f79 100644
--- a/include/rssfuncs.php
+++ b/include/rssfuncs.php
@@ -1,34 +1,34 @@
 <?php
-	define('DAEMON_UPDATE_LOGIN_LIMIT', 30);
-	define('DAEMON_FEED_LIMIT', 100);
-	define('DAEMON_SLEEP_INTERVAL', 60);
+	define_default('DAEMON_UPDATE_LOGIN_LIMIT', 30);
+	define_default('DAEMON_FEED_LIMIT', 500);
+	define_default('DAEMON_SLEEP_INTERVAL', 120);
 
-	function update_feedbrowser_cache($link) {
+	function update_feedbrowser_cache() {
 
-		$result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
+		$result = db_query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
 	  		FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
 				WHERE tf.feed_url = ttrss_feeds.feed_url
 				AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
 				GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
 
-		db_query($link, "BEGIN");
+		db_query("BEGIN");
 
-		db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
+		db_query("DELETE FROM ttrss_feedbrowser_cache");
 
 		$count = 0;
 
 		while ($line = db_fetch_assoc($result)) {
-			$subscribers = db_escape_string($link, $line["subscribers"]);
-			$feed_url = db_escape_string($link, $line["feed_url"]);
-			$title = db_escape_string($link, $line["title"]);
-			$site_url = db_escape_string($link, $line["site_url"]);
+			$subscribers = db_escape_string($line["subscribers"]);
+			$feed_url = db_escape_string($line["feed_url"]);
+			$title = db_escape_string($line["title"]);
+			$site_url = db_escape_string($line["site_url"]);
 
-			$tmp_result = db_query($link, "SELECT subscribers FROM
+			$tmp_result = db_query("SELECT subscribers FROM
 				ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
 
 			if (db_num_rows($tmp_result) == 0) {
 
-				db_query($link, "INSERT INTO ttrss_feedbrowser_cache
+				db_query("INSERT INTO ttrss_feedbrowser_cache
 					(feed_url, site_url, title, subscribers) VALUES ('$feed_url',
 						'$site_url', '$title', '$subscribers')");
 
@@ -38,7 +38,7 @@
 
 		}
 
-		db_query($link, "COMMIT");
+		db_query("COMMIT");
 
 		return $count;
 
@@ -57,9 +57,15 @@
 	 * @param boolean $debug Set to false to disable debug output. Default to true.
 	 * @return void
 	 */
-	function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
+	function update_daemon_common($limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
 		// Process all other feeds using last_updated and interval parameters
 
+		$schema_version = get_schema_version();
+
+		if ($schema_version != SCHEMA_VERSION) {
+			die("Schema version is wrong, please upgrade the database.\n");
+		}
+
 		define('PREFS_NO_CACHE', true);
 
 		// Test if the user has loggued in recently. If not, it does not update its feeds.
@@ -98,19 +104,16 @@
 
 		// Test if feed is currently being updated by another process.
 		if (DB_TYPE == "pgsql") {
-			$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '5 minutes')";
+			$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
 		} else {
-			$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 5 MINUTE))";
+			$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
 		}
 
 		// Test if there is a limit to number of updated feeds
 		$query_limit = "";
 		if($limit) $query_limit = sprintf("LIMIT %d", $limit);
 
-		$random_qpart = sql_random_function();
-
-		// We search for feed needing update.
-		$result = db_query($link, "SELECT DISTINCT ttrss_feeds.feed_url,$random_qpart
+		$query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
 			FROM
 				ttrss_feeds, ttrss_users, ttrss_user_prefs
 			WHERE
@@ -119,16 +122,17 @@
 				AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
 				$login_thresh_qpart $update_limit_qpart
 				$updstart_thresh_qpart
-			ORDER BY $random_qpart $query_limit");
+				ORDER BY last_updated $query_limit";
 
-		$user_prefs_cache = array();
+		// We search for feed needing update.
+		$result = db_query($query);
 
 		if($debug) _debug(sprintf("Scheduled %d feeds to update...", db_num_rows($result)));
 
 		// Here is a little cache magic in order to minimize risk of double feed updates.
 		$feeds_to_update = array();
 		while ($line = db_fetch_assoc($result)) {
-			array_push($feeds_to_update, db_escape_string($link, $line['feed_url']));
+			array_push($feeds_to_update, db_escape_string($line['feed_url']));
 		}
 
 		// We update the feed last update started date before anything else.
@@ -139,32 +143,29 @@
 			$feeds_quoted = array();
 
 			foreach ($feeds_to_update as $feed) {
-				array_push($feeds_quoted, "'" . db_escape_string($link, $feed) . "'");
+				array_push($feeds_quoted, "'" . db_escape_string($feed) . "'");
 			}
 
-			db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
+			db_query(sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
 				WHERE feed_url IN (%s)", implode(',', $feeds_quoted)));
 		}
 
-		expire_cached_files($debug);
-		expire_lock_files($debug);
-
 		$nf = 0;
 
 		// For each feed, we call the feed update function.
 		foreach ($feeds_to_update as $feed) {
 			if($debug) _debug("Base feed: $feed");
 
-			//update_rss_feed($link, $line["id"], true);
+			//update_rss_feed($line["id"], true);
 
 			// since we have the data cached, we can deal with other feeds with the same url
 
-			$tmp_result = db_query($link, "SELECT DISTINCT ttrss_feeds.id,last_updated
+			$tmp_result = db_query("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
 			FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
 				ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
 				ttrss_users.id = ttrss_user_prefs.owner_uid AND
 				ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
-				feed_url = '".db_escape_string($link, $feed)."' AND
+				feed_url = '".db_escape_string($feed)."' AND
 				(ttrss_feeds.update_interval > 0 OR
 					ttrss_user_prefs.value != '-1')
 				$login_thresh_qpart
@@ -172,8 +173,8 @@
 
 			if (db_num_rows($tmp_result) > 0) {
 				while ($tline = db_fetch_assoc($tmp_result)) {
-					if($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"]);
-					update_rss_feed($link, $tline["id"], true);
+					if($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
+					update_rss_feed($tline["id"], true);
 					++$nf;
 				}
 			}
@@ -182,199 +183,200 @@
 		require_once "digest.php";
 
 		// Send feed digests by email if needed.
-		send_headlines_digests($link, $debug);
+		send_headlines_digests($debug);
 
 		return $nf;
 
 	} // function update_daemon_common
 
 	// ignore_daemon is not used
-	function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false,
-		$override_url = false) {
-
-		require_once "lib/simplepie/simplepie.inc";
+	function update_rss_feed($feed, $ignore_daemon = false, $no_cache = false,
+		$override_url = false, $override_data = false) {
 
 		$debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
 
-		if ($debug_enabled) {
-			_debug("update_rss_feed: start");
-		}
+		_debug("start", $debug_enabled);
 
-		$result = db_query($link, "SELECT id,update_interval,auth_login,
+		$result = db_query("SELECT id,update_interval,auth_login,
 			feed_url,auth_pass,cache_images,last_updated,
 			mark_unread_on_update, owner_uid,
-			pubsub_state
+			pubsub_state, auth_pass_encrypted,
+			(SELECT max(date_entered) FROM
+				ttrss_entries, ttrss_user_entries where ref_id = id AND feed_id = '$feed') AS last_article_timestamp
 			FROM ttrss_feeds WHERE id = '$feed'");
 
 		if (db_num_rows($result) == 0) {
-			if ($debug_enabled) {
-				_debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
-			}
+			_debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
 			return false;
 		}
 
 		$last_updated = db_fetch_result($result, 0, "last_updated");
+		$last_article_timestamp = @strtotime(db_fetch_result($result, 0, "last_article_timestamp"));
+
+		if (defined('_DISABLE_HTTP_304'))
+			$last_article_timestamp = 0;
+
 		$owner_uid = db_fetch_result($result, 0, "owner_uid");
 		$mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
 			0, "mark_unread_on_update"));
 		$pubsub_state = db_fetch_result($result, 0, "pubsub_state");
+		$auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
+			0, "auth_pass_encrypted"));
 
-		db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
+		db_query("UPDATE ttrss_feeds SET last_update_started = NOW()
 			WHERE id = '$feed'");
 
 		$auth_login = db_fetch_result($result, 0, "auth_login");
 		$auth_pass = db_fetch_result($result, 0, "auth_pass");
 
+		if ($auth_pass_encrypted) {
+			require_once "crypt.php";
+			$auth_pass = decrypt_string($auth_pass);
+		}
+
 		$cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 		$fetch_url = db_fetch_result($result, 0, "feed_url");
 
-		$feed = db_escape_string($link, $feed);
+		$feed = db_escape_string($feed);
 
 		if ($override_url) $fetch_url = $override_url;
 
 		$date_feed_processed = date('Y-m-d H:i');
 
-		$cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".feed";
-
-		// Ignore cache if new feed or manual update.
-		$cache_age = ($no_cache || is_null($last_updated) || $last_updated == '1970-01-01 00:00:00') ?
-			30 : get_feed_update_interval($link, $feed) * 60;
-
-		if ($debug_enabled) {
-			_debug("update_rss_feed: cache filename: $cache_filename exists: " . file_exists($cache_filename));
-			_debug("update_rss_feed: cache age: $cache_age; no cache: $no_cache");
-		}
-
-		$cached_feed_data_hash = false;
+		$cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".xml";
 
 		$rss = false;
 		$rss_hash = false;
 		$cache_timestamp = file_exists($cache_filename) ? filemtime($cache_filename) : 0;
-		$last_updated_timestamp = strtotime($last_updated);
 
-		if (file_exists($cache_filename) &&
+		$force_refetch = isset($_REQUEST["force_refetch"]);
+
+		if ($override_data) {
+			$feed_data = $override_data;
+		}
+
+		if (!$feed_data && file_exists($cache_filename) &&
 			is_readable($cache_filename) &&
 			!$auth_login && !$auth_pass &&
-			filemtime($cache_filename) > time() - $cache_age) {
+			filemtime($cache_filename) > time() - 30) {
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: using local cache.");
-				}
+			_debug("using local cache.", $debug_enabled);
 
-				if ($cache_timestamp > $last_updated_timestamp) {
-					@$rss_data = file_get_contents($cache_filename);
+			@$feed_data = file_get_contents($cache_filename);
 
-					if ($rss_data) {
-						$rss_hash = sha1($rss_data);
-						@$rss = unserialize($rss_data);
-					}
-				} else {
-					if ($debug_enabled) {
-						_debug("update_rss_feed: local cache valid and older than last_updated, nothing to do.");
-					}
-					return;
-				}
+			if ($feed_data) {
+				$rss_hash = sha1($feed_data);
+			}
+
+		} else {
+			_debug("local cache will not be used for this feed", $debug_enabled);
 		}
 
-		if (!$rss) {
+		if (!$feed_data) {
+			_debug("fetching [$fetch_url]...", $debug_enabled);
+			_debug("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $last_article_timestamp), $debug_enabled);
 
-			if (!$feed_data) {
-				if ($debug_enabled) {
-					_debug("update_rss_feed: fetching [$fetch_url] (ts: $cache_timestamp/$last_updated_timestamp)");
-				}
-
-				$force_refetch = isset($_REQUEST["force_refetch"]);
+			$feed_data = fetch_file_contents($fetch_url, false,
+				$auth_login, $auth_pass, false,
+				$no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
+				$force_refetch ? 0 : $last_article_timestamp);
 
-				$feed_data = fetch_file_contents($fetch_url, false,
-					$auth_login, $auth_pass, false,
-					$no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
-					$force_refetch ? 0 : max($last_updated_timestamp, $cache_timestamp));
+			global $fetch_curl_used;
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: fetch done.");
-				}
+			if (!$fetch_curl_used) {
+				$tmp = @gzdecode($feed_data);
 
+				if ($tmp) $feed_data = $tmp;
 			}
 
-			if (!$feed_data) {
-				global $fetch_last_error;
-				global $fetch_last_error_code;
+			$feed_data = trim($feed_data);
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: unable to fetch: $fetch_last_error [$fetch_last_error_code]");
-				}
+			_debug("fetch done.", $debug_enabled);
 
-				$error_escaped = '';
+			if ($feed_data) {
+				$error = verify_feed_xml($feed_data);
 
-				// If-Modified-Since
-				if ($fetch_last_error_code != 304) {
-					$error_escaped = db_escape_string($link, $fetch_last_error);
-				} else {
-					if ($debug_enabled) {
-						_debug("update_rss_feed: source claims data not modified, nothing to do.");
+				if ($error) {
+					_debug("error verifying XML, code: " . $error->code, $debug_enabled);
+
+					if ($error->code == 26) {
+						_debug("got error 26, trying to decode entities...", $debug_enabled);
+
+						$feed_data = html_entity_decode($feed_data, ENT_COMPAT, 'UTF-8');
+
+						$error = verify_feed_xml($feed_data);
+
+						if ($error) $feed_data = '';
 					}
 				}
+			}
+		}
 
-				db_query($link,
-					"UPDATE ttrss_feeds SET last_error = '$error_escaped',
-						last_updated = NOW() WHERE id = '$feed'");
+		if (!$feed_data) {
+			global $fetch_last_error;
+			global $fetch_last_error_code;
 
-				return;
+			_debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
+
+			$error_escaped = '';
+
+			// If-Modified-Since
+			if ($fetch_last_error_code != 304) {
+				$error_escaped = db_escape_string($fetch_last_error);
+			} else {
+				_debug("source claims data not modified, nothing to do.", $debug_enabled);
 			}
+
+			db_query(
+				"UPDATE ttrss_feeds SET last_error = '$error_escaped',
+					last_updated = NOW() WHERE id = '$feed'");
+
+			return;
 		}
 
-		$pluginhost = new PluginHost($link);
+		$pluginhost = new PluginHost();
 		$pluginhost->set_debug($debug_enabled);
-		$user_plugins = get_pref($link, "_ENABLED_PLUGINS", $owner_uid);
+		$user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
 
-		$pluginhost->load(PLUGINS, $pluginhost::KIND_ALL);
-		$pluginhost->load($user_plugins, $pluginhost::KIND_USER, $owner_uid);
+		$pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
+		$pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
 		$pluginhost->load_data();
 
-		foreach ($pluginhost->get_hooks($pluginhost::HOOK_FEED_FETCHED) as $plugin) {
+		foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
 			$feed_data = $plugin->hook_feed_fetched($feed_data);
 		}
 
+		// set last update to now so if anything *simplepie* crashes later we won't be
+		// continuously failing on the same feed
+		//db_query("UPDATE ttrss_feeds SET last_updated = NOW() WHERE id = '$feed'");
+
 		if (!$rss) {
-			$rss = new SimplePie();
-			$rss->set_sanitize_class("SanitizeDummy");
-			// simplepie ignores the above and creates default sanitizer anyway,
-			// so let's override it...
-			$rss->sanitize = new SanitizeDummy();
-			$rss->set_output_encoding('UTF-8');
-			$rss->set_raw_data($feed_data);
-			$rss->enable_cache(false);
-
-			@$rss->init();
+			$rss = new FeedParser($feed_data);
+			$rss->init();
 		}
 
 //		print_r($rss);
 
-		$feed = db_escape_string($link, $feed);
+		$feed = db_escape_string($feed);
 
 		if (!$rss->error()) {
 
 			// cache data for later
 			if (!$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
-				$rss_data = serialize($rss);
 				$new_rss_hash = sha1($rss_data);
 
-				if ($new_rss_hash != $rss_hash) {
-					if ($debug_enabled) {
-						_debug("update_rss_feed: saving $cache_filename");
-					}
-					@file_put_contents($cache_filename, serialize($rss));
+				if ($new_rss_hash != $rss_hash && count($rss->get_items()) > 0 ) {
+					_debug("saving $cache_filename", $debug_enabled);
+					@file_put_contents($cache_filename, $feed_data);
 				}
 			}
 
 			// We use local pluginhost here because we need to load different per-user feed plugins
-			$pluginhost->run_hooks($pluginhost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
+			$pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
 
-			if ($debug_enabled) {
-				_debug("update_rss_feed: processing feed data...");
-			}
+			_debug("processing feed data...", $debug_enabled);
 
-//			db_query($link, "BEGIN");
+//			db_query("BEGIN");
 
 			if (DB_TYPE == "pgsql") {
 				$favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
@@ -382,7 +384,7 @@
 				$favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
 			}
 
-			$result = db_query($link, "SELECT title,site_url,owner_uid,
+			$result = db_query("SELECT title,site_url,owner_uid,favicon_avg_color,
 				(favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
 						favicon_needs_check
 				FROM ttrss_feeds WHERE id = '$feed'");
@@ -391,59 +393,80 @@
 			$orig_site_url = db_fetch_result($result, 0, "site_url");
 			$favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
 				"favicon_needs_check"));
+			$favicon_avg_color = db_fetch_result($result, 0, "favicon_avg_color");
 
 			$owner_uid = db_fetch_result($result, 0, "owner_uid");
 
-			$site_url = db_escape_string($link, mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
+			$site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
 
-			if ($debug_enabled) {
-				_debug("update_rss_feed: checking favicon...");
-			}
+			_debug("site_url: $site_url", $debug_enabled);
+			_debug("feed_title: " . $rss->get_title(), $debug_enabled);
+
+			if ($favicon_needs_check || $force_refetch) {
+
+				/* terrible hack: if we crash on floicon shit here, we won't check
+				 * the icon avgcolor again (unless the icon got updated) */
+
+				$favicon_file = ICONS_DIR . "/$feed.ico";
+				$favicon_modified = @filemtime($favicon_file);
+
+				_debug("checking favicon...", $debug_enabled);
+
+				check_feed_favicon($site_url, $feed);
+				$favicon_modified_new = @filemtime($favicon_file);
+
+				if ($favicon_modified_new > $favicon_modified)
+					$favicon_avg_color = '';
+
+				if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
+						require_once "colors.php";
+
+						db_query("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
+							id = '$feed'");
 
-			if ($favicon_needs_check) {
-				check_feed_favicon($site_url, $feed, $link);
+						$favicon_color = db_escape_string(
+							calculate_avg_color($favicon_file));
 
-				db_query($link, "UPDATE ttrss_feeds SET favicon_last_checked = NOW()
+						$favicon_colorstring = ",favicon_avg_color = '".$favicon_color."'";
+				} else if ($favicon_avg_color == 'fail') {
+					_debug("floicon failed on this file, not trying to recalculate avg color", $debug_enabled);
+				}
+
+				db_query("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
+					$favicon_colorstring
 					WHERE id = '$feed'");
 			}
 
 			if (!$registered_title || $registered_title == "[Unknown]") {
 
-				$feed_title = db_escape_string($link, $rss->get_title());
+				$feed_title = db_escape_string($rss->get_title());
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: registering title: $feed_title");
-				}
+				if ($feed_title) {
+					_debug("registering title: $feed_title", $debug_enabled);
 
-				db_query($link, "UPDATE ttrss_feeds SET
-					title = '$feed_title' WHERE id = '$feed'");
+					db_query("UPDATE ttrss_feeds SET
+						title = '$feed_title' WHERE id = '$feed'");
+				}
 			}
 
 			if ($site_url && $orig_site_url != $site_url) {
-				db_query($link, "UPDATE ttrss_feeds SET
+				db_query("UPDATE ttrss_feeds SET
 					site_url = '$site_url' WHERE id = '$feed'");
 			}
 
-			if ($debug_enabled) {
-				_debug("update_rss_feed: loading filters & labels...");
-			}
+			_debug("loading filters & labels...", $debug_enabled);
 
-			$filters = load_filters($link, $feed, $owner_uid);
-			$labels = get_all_labels($link, $owner_uid);
+			$filters = load_filters($feed, $owner_uid);
+			$labels = get_all_labels($owner_uid);
 
-			if ($debug_enabled) {
-				//print_r($filters);
-				_debug("update_rss_feed: " . count($filters) . " filters loaded.");
-			}
+			_debug("" . count($filters) . " filters loaded.", $debug_enabled);
 
 			$items = $rss->get_items();
 
 			if (!is_array($items)) {
-				if ($debug_enabled) {
-					_debug("update_rss_feed: no articles found.");
-				}
+				_debug("no articles found.", $debug_enabled);
 
-				db_query($link, "UPDATE ttrss_feeds
+				db_query("UPDATE ttrss_feeds
 					SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 
 				return; // no articles
@@ -451,7 +474,7 @@
 
 			if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
 
-				if ($debug_enabled) _debug("update_rss_feed: checking for PUSH hub...");
+				_debug("checking for PUSH hub...", $debug_enabled);
 
 				$feed_hub_url = false;
 
@@ -464,7 +487,7 @@
 					}
 				}
 
-				if ($debug_enabled) _debug("update_rss_feed: feed hub url: $feed_hub_url");
+				_debug("feed hub url: $feed_hub_url", $debug_enabled);
 
 				if ($feed_hub_url && function_exists('curl_init') &&
 					!ini_get("open_basedir")) {
@@ -478,17 +501,14 @@
 
 					$rc = $s->subscribe($fetch_url);
 
-					if ($debug_enabled)
-						_debug("update_rss_feed: feed hub url found, subscribe request sent.");
+					_debug("feed hub url found, subscribe request sent.", $debug_enabled);
 
-					db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
+					db_query("UPDATE ttrss_feeds SET pubsub_state = 1
 						WHERE id = '$feed'");
 				}
 			}
 
-			if ($debug_enabled) {
-				_debug("update_rss_feed: processing articles...");
-			}
+			_debug("processing articles...", $debug_enabled);
 
 			foreach ($items as $item) {
 				if ($_REQUEST['xdebug'] == 3) {
@@ -499,17 +519,21 @@
 				if (!$entry_guid) $entry_guid = $item->get_link();
 				if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: guid $entry_guid");
-				}
+				_debug("f_guid $entry_guid", $debug_enabled);
 
 				if (!$entry_guid) continue;
 
 				$entry_guid = "$owner_uid,$entry_guid";
 
+				$entry_guid_hashed = db_escape_string('SHA1:' . sha1($entry_guid));
+
+				_debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
+
 				$entry_timestamp = "";
 
-				$entry_timestamp = strtotime($item->get_date());
+				$entry_timestamp = $item->get_date();
+
+				_debug("orig date: " . $item->get_date(), $debug_enabled);
 
 				if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
 					$entry_timestamp = time();
@@ -520,18 +544,16 @@
 
 				$entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
-				}
+				_debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
 
+//				$entry_title = html_entity_decode($item->get_title(), ENT_COMPAT, 'UTF-8');
+//				$entry_title = decode_numeric_entities($entry_title);
 				$entry_title = $item->get_title();
 
 				$entry_link = rewrite_relative_url($site_url, $item->get_link());
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: title $entry_title");
-					_debug("update_rss_feed: link $entry_link");
-				}
+				_debug("title $entry_title", $debug_enabled);
+				_debug("link $entry_link", $debug_enabled);
 
 				if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 
@@ -539,38 +561,24 @@
 				if (!$entry_content) $entry_content = $item->get_description();
 
 				if ($_REQUEST["xdebug"] == 2) {
-					print "update_rss_feed: content: ";
+					print "content: ";
 					print $entry_content;
 					print "\n";
 				}
 
-				$entry_comments = $item->data["comments"];
+				$entry_comments = $item->get_comments_url();
+				$entry_author = $item->get_author();
 
-				if ($item->get_author()) {
-					$entry_author_item = $item->get_author();
-					$entry_author = $entry_author_item->get_name();
-					if (!$entry_author) $entry_author = $entry_author_item->get_email();
+				$entry_guid = db_escape_string(mb_substr($entry_guid, 0, 245));
 
-					$entry_author = db_escape_string($link, $entry_author);
-				}
-
-				$entry_guid = db_escape_string($link, mb_substr($entry_guid, 0, 245));
-
-				$entry_comments = db_escape_string($link, mb_substr($entry_comments, 0, 245));
-				$entry_author = db_escape_string($link, mb_substr($entry_author, 0, 245));
+				$entry_comments = db_escape_string(mb_substr(trim($entry_comments), 0, 245));
+				$entry_author = db_escape_string(mb_substr(trim($entry_author), 0, 245));
 
-				$num_comments = $item->get_item_tags('http://purl.org/rss/1.0/modules/slash/', 'comments');
-
-				if (is_array($num_comments) && is_array($num_comments[0])) {
-					$num_comments = (int) $num_comments[0]["data"];
-				} else {
-					$num_comments = 0;
-				}
+				$num_comments = (int) $item->get_comments_count();
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: num_comments: $num_comments");
-					_debug("update_rss_feed: looking for tags [1]...");
-				}
+				_debug("author $entry_author", $debug_enabled);
+				_debug("num_comments: $num_comments", $debug_enabled);
+				_debug("looking for tags...", $debug_enabled);
 
 				// parse <category> entries into tags
 
@@ -580,42 +588,26 @@
 
 				if (is_array($additional_tags_src)) {
 					foreach ($additional_tags_src as $tobj) {
-						array_push($additional_tags, $tobj->get_term());
+						array_push($additional_tags, $tobj);
 					}
 				}
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: category tags:");
-					print_r($additional_tags);
-				}
-
-				if ($debug_enabled) {
-					_debug("update_rss_feed: looking for tags [2]...");
-				}
-
 				$entry_tags = array_unique($additional_tags);
 
 				for ($i = 0; $i < count($entry_tags); $i++)
 					$entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
 
-				if ($debug_enabled) {
-					//_debug("update_rss_feed: unfiltered tags found:");
-					//print_r($entry_tags);
-				}
+				_debug("tags found: " . join(",", $entry_tags), $debug_enabled);
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: done collecting data.");
-				}
+				_debug("done collecting data.", $debug_enabled);
 
 				// TODO: less memory-hungry implementation
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: applying plugin filters..");
-				}
+				_debug("applying plugin filters..", $debug_enabled);
 
 				// FIXME not sure if owner_uid is a good idea here, we may have a base entry without user entry (?)
-				$result = db_query($link, "SELECT plugin_data,title,content,link,tag_cache,author FROM ttrss_entries, ttrss_user_entries
-					WHERE ref_id = id AND guid = '".db_escape_string($link, $entry_guid)."' AND owner_uid = $owner_uid");
+				$result = db_query("SELECT plugin_data,title,content,link,tag_cache,author FROM ttrss_entries, ttrss_user_entries
+					WHERE ref_id = id AND (guid = '".db_escape_string($entry_guid)."' OR guid = '$entry_guid_hashed') AND owner_uid = $owner_uid");
 
 				if (db_num_rows($result) != 0) {
 					$entry_plugin_data = db_fetch_result($result, 0, "plugin_data");
@@ -639,44 +631,40 @@
 					"author" => $entry_author,
 					"stored" => $stored_article);
 
-				foreach ($pluginhost->get_hooks($pluginhost::HOOK_ARTICLE_FILTER) as $plugin) {
+				foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
 					$article = $plugin->hook_article_filter($article);
 				}
 
 				$entry_tags = $article["tags"];
-				$entry_guid = db_escape_string($link, $entry_guid);
-				$entry_title = db_escape_string($link, $article["title"]);
-				$entry_author = db_escape_string($link, $article["author"]);
-				$entry_link = db_escape_string($link, $article["link"]);
-				$entry_plugin_data = db_escape_string($link, $article["plugin_data"]);
+				$entry_guid = db_escape_string($entry_guid);
+				$entry_title = db_escape_string($article["title"]);
+				$entry_author = db_escape_string($article["author"]);
+				$entry_link = db_escape_string($article["link"]);
+				$entry_plugin_data = db_escape_string($article["plugin_data"]);
 				$entry_content = $article["content"]; // escaped below
 
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: plugin data: $entry_plugin_data");
-				}
+				_debug("plugin data: $entry_plugin_data", $debug_enabled);
 
 				if ($cache_images && is_writable(CACHE_DIR . '/images'))
 					cache_images($entry_content, $site_url, $debug_enabled);
 
-				$entry_content = db_escape_string($link, $entry_content, false);
+				$entry_content = db_escape_string($entry_content, false);
 
 				$content_hash = "SHA1:" . sha1($entry_content);
 
-				db_query($link, "BEGIN");
+				db_query("BEGIN");
 
-				$result = db_query($link, "SELECT id FROM	ttrss_entries
-					WHERE guid = '$entry_guid'");
+				$result = db_query("SELECT id FROM	ttrss_entries
+					WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
 
 				if (db_num_rows($result) == 0) {
 
-					if ($debug_enabled) {
-						_debug("update_rss_feed: base guid [$entry_guid] not found");
-					}
+					_debug("base guid [$entry_guid] not found", $debug_enabled);
 
 					// base post entry does not exist, create it
 
-					$result = db_query($link,
+					$result = db_query(
 						"INSERT INTO ttrss_entries
 							(title,
 							guid,
@@ -694,7 +682,7 @@
 							author)
 						VALUES
 							('$entry_title',
-							'$entry_guid',
+							'$entry_guid_hashed',
 							'$entry_link',
 							'$entry_timestamp_fmt',
 							'$entry_content',
@@ -718,31 +706,29 @@
 
 					$base_entry_id = db_fetch_result($result, 0, "id");
 
-					db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
+					db_query("UPDATE ttrss_entries SET date_updated = NOW()
 						WHERE id = '$base_entry_id'");
 
-					$article_labels = get_article_labels($link, $base_entry_id, $owner_uid);
+					$article_labels = get_article_labels($base_entry_id, $owner_uid);
 				}
 
 				// now it should exist, if not - bad luck then
 
-				$result = db_query($link, "SELECT
-						id,content_hash,no_orig_date,title,plugin_data,
+				$result = db_query("SELECT
+						id,content_hash,no_orig_date,title,plugin_data,guid,
 						".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
 						".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
 						num_comments
 					FROM
 						ttrss_entries
-					WHERE guid = '$entry_guid'");
+					WHERE guid = '$entry_guid' OR guid = '$entry_guid_hashed'");
 
 				$entry_ref_id = 0;
 				$entry_int_id = 0;
 
 				if (db_num_rows($result) == 1) {
 
-					if ($debug_enabled) {
-						_debug("update_rss_feed: base guid [$entry_guid] found, checking for user record");
-					}
+					_debug("base guid found, checking for user record", $debug_enabled);
 
 					// this will be used below in update handler
 					$orig_content_hash = db_fetch_result($result, 0, "content_hash");
@@ -755,10 +741,18 @@
 					$ref_id = db_fetch_result($result, 0, "id");
 					$entry_ref_id = $ref_id;
 
+					/* $stored_guid = db_fetch_result($result, 0, "guid");
+					if ($stored_guid != $entry_guid_hashed) {
+						if ($debug_enabled) _debug("upgrading compat guid to hashed one", $debug_enabled);
+
+						db_query("UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
+							id = '$ref_id'");
+					} */
+
 					// check for user post link to main table
 
 					// do we allow duplicate posts with same GUID in different feeds?
-					if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
+					if (get_pref("ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
 						$dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
 					} else {
 						$dupcheck_qpart = "";
@@ -771,22 +765,20 @@
 						$entry_tags);
 
 					if ($debug_enabled) {
-						_debug("update_rss_feed: article filters: ");
+						_debug("article filters: ", $debug_enabled);
 						if (count($article_filters) != 0) {
 							print_r($article_filters);
 						}
 					}
 
 					if (find_article_filter($article_filters, "filter")) {
-						db_query($link, "COMMIT"); // close transaction in progress
+						db_query("COMMIT"); // close transaction in progress
 						continue;
 					}
 
 					$score = calculate_article_score($article_filters);
 
-					if ($debug_enabled) {
-						_debug("update_rss_feed: initial score: $score");
-					}
+					_debug("initial score: $score", $debug_enabled);
 
 					$query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
 							ref_id = '$ref_id' AND owner_uid = '$owner_uid'
@@ -794,14 +786,12 @@
 
 //					if ($_REQUEST["xdebug"]) print "$query\n";
 
-					$result = db_query($link, $query);
+					$result = db_query($query);
 
 					// okay it doesn't exist - create user entry
 					if (db_num_rows($result) == 0) {
 
-						if ($debug_enabled) {
-							_debug("update_rss_feed: user record not found, creating...");
-						}
+						_debug("user record not found, creating...", $debug_enabled);
 
 						if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
 							$unread = 'true';
@@ -827,7 +817,7 @@
 
 						if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_DUPLICATE_THRESHOLD')) {
 
-							$result = db_query($link, "SELECT COUNT(*) AS similar FROM
+							$result = db_query("SELECT COUNT(*) AS similar FROM
 									ttrss_entries,ttrss_user_entries
 								WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
 									AND similarity(title, '$entry_title') >= "._NGRAM_TITLE_DUPLICATE_THRESHOLD."
@@ -835,9 +825,7 @@
 
 							$ngram_similar = db_fetch_result($result, 0, "similar");
 
-							if ($debug_enabled) {
-								_debug("update_rss_feed: N-gram similar results: $ngram_similar");
-							}
+							_debug("N-gram similar results: $ngram_similar", $debug_enabled);
 
 							if ($ngram_similar > 0) {
 								$unread = 'false';
@@ -847,7 +835,7 @@
 						$last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
 						$last_published = ($published == 'true') ? 'NOW()' : 'NULL';
 
-						$result = db_query($link,
+						$result = db_query(
 							"INSERT INTO ttrss_user_entries
 								(ref_id, owner_uid, feed_id, unread, last_read, marked,
 								published, score, tag_cache, label_cache, uuid,
@@ -859,14 +847,14 @@
 						if (PUBSUBHUBBUB_HUB && $published == 'true') {
 							$rss_link = get_self_url_prefix() .
 								"/public.php?op=rss&id=-2&key=" .
-								get_feed_access_key($link, -2, false, $owner_uid);
+								get_feed_access_key(-2, false, $owner_uid);
 
 							$p = new Publisher(PUBSUBHUBBUB_HUB);
 
 							$pubsub_result = $p->publish_update($rss_link);
 						}
 
-						$result = db_query($link,
+						$result = db_query(
 							"SELECT int_id FROM ttrss_user_entries WHERE
 								ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
 								feed_id = '$feed' LIMIT 1");
@@ -875,17 +863,13 @@
 							$entry_int_id = db_fetch_result($result, 0, "int_id");
 						}
 					} else {
-						if ($debug_enabled) {
-							_debug("update_rss_feed: user record FOUND");
-						}
+						_debug("user record FOUND", $debug_enabled);
 
 						$entry_ref_id = db_fetch_result($result, 0, "ref_id");
 						$entry_int_id = db_fetch_result($result, 0, "int_id");
 					}
 
-					if ($debug_enabled) {
-						_debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
-					}
+					_debug("RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
 
 					$post_needs_update = false;
 					$update_insignificant = false;
@@ -905,7 +889,7 @@
 						$update_insignificant = false;
 					}
 
-					if (db_escape_string($link, $orig_title) != $entry_title) {
+					if (db_escape_string($orig_title) != $entry_title) {
 						$post_needs_update = true;
 						$update_insignificant = false;
 					}
@@ -915,12 +899,12 @@
 					if ($post_needs_update) {
 
 						if (defined('DAEMON_EXTENDED_DEBUG')) {
-							_debug("update_rss_feed: post $entry_guid needs update...");
+							_debug("post $entry_guid_hashed needs update...", $debug_enabled);
 						}
 
 //						print "<!-- post $orig_title needs update : $post_needs_update -->";
 
-						db_query($link, "UPDATE ttrss_entries
+						db_query("UPDATE ttrss_entries
 							SET title = '$entry_title', content = '$entry_content',
 								content_hash = '$content_hash',
 								updated = '$entry_timestamp_fmt',
@@ -930,25 +914,21 @@
 
 						if (!$update_insignificant) {
 							if ($mark_unread_on_update) {
-								db_query($link, "UPDATE ttrss_user_entries
+								db_query("UPDATE ttrss_user_entries
 									SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
 							}
 						}
 					}
 				}
 
-				db_query($link, "COMMIT");
+				db_query("COMMIT");
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: assigning labels...");
-				}
+				_debug("assigning labels...", $debug_enabled);
 
-				assign_article_to_label_filters($link, $entry_ref_id, $article_filters,
+				assign_article_to_label_filters($entry_ref_id, $article_filters,
 					$owner_uid, $article_labels);
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: looking for enclosures...");
-				}
+				_debug("looking for enclosures...", $debug_enabled);
 
 				// enclosures
 
@@ -965,28 +945,28 @@
 				}
 
 				if ($debug_enabled) {
-					_debug("update_rss_feed: article enclosures:");
+					_debug("article enclosures:", $debug_enabled);
 					print_r($enclosures);
 				}
 
-				db_query($link, "BEGIN");
+				db_query("BEGIN");
 
 				foreach ($enclosures as $enc) {
-					$enc_url = db_escape_string($link, $enc[0]);
-					$enc_type = db_escape_string($link, $enc[1]);
-					$enc_dur = db_escape_string($link, $enc[2]);
+					$enc_url = db_escape_string($enc[0]);
+					$enc_type = db_escape_string($enc[1]);
+					$enc_dur = db_escape_string($enc[2]);
 
-					$result = db_query($link, "SELECT id FROM ttrss_enclosures
+					$result = db_query("SELECT id FROM ttrss_enclosures
 						WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
 
 					if (db_num_rows($result) == 0) {
-						db_query($link, "INSERT INTO ttrss_enclosures
+						db_query("INSERT INTO ttrss_enclosures
 							(content_url, content_type, title, duration, post_id) VALUES
 							('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
 					}
 				}
 
-				db_query($link, "COMMIT");
+				db_query("COMMIT");
 
 				// check for manual tags (we have to do it here since they're loaded from filters)
 
@@ -1005,7 +985,7 @@
 
 				// Skip boring tags
 
-				$boring_tags = trim_array(explode(",", mb_strtolower(get_pref($link,
+				$boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
 					'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
 
 				$filtered_tags = array();
@@ -1022,7 +1002,7 @@
 				$filtered_tags = array_unique($filtered_tags);
 
 				if ($debug_enabled) {
-					_debug("update_rss_feed: filtered article tags:");
+					_debug("filtered article tags:", $debug_enabled);
 					print_r($filtered_tags);
 				}
 
@@ -1030,22 +1010,22 @@
 
 				if (count($filtered_tags) > 0) {
 
-					db_query($link, "BEGIN");
+					db_query("BEGIN");
 
 					foreach ($filtered_tags as $tag) {
 
 						$tag = sanitize_tag($tag);
-						$tag = db_escape_string($link, $tag);
+						$tag = db_escape_string($tag);
 
 						if (!tag_is_valid($tag)) continue;
 
-						$result = db_query($link, "SELECT id FROM ttrss_tags
+						$result = db_query("SELECT id FROM ttrss_tags
 							WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 							owner_uid = '$owner_uid' LIMIT 1");
 
 							if ($result && db_num_rows($result) == 0) {
 
-								db_query($link, "INSERT INTO ttrss_tags
+								db_query("INSERT INTO ttrss_tags
 									(owner_uid,tag_name,post_int_id)
 									VALUES ('$owner_uid','$tag', '$entry_int_id')");
 							}
@@ -1057,73 +1037,60 @@
 
 					$tags_to_cache = array_unique($tags_to_cache);
 
-					$tags_str = db_escape_string($link, join(",", $tags_to_cache));
+					$tags_str = db_escape_string(join(",", $tags_to_cache));
 
-					db_query($link, "UPDATE ttrss_user_entries
+					db_query("UPDATE ttrss_user_entries
 						SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
 						AND owner_uid = $owner_uid");
 
-					db_query($link, "COMMIT");
+					db_query("COMMIT");
 				}
 
-				if (get_pref($link, "AUTO_ASSIGN_LABELS", $owner_uid, false)) {
-					if ($debug_enabled) {
-						_debug("update_rss_feed: auto-assigning labels...");
-					}
+				if (get_pref("AUTO_ASSIGN_LABELS", $owner_uid, false)) {
+					_debug("auto-assigning labels...", $debug_enabled);
 
 					foreach ($labels as $label) {
 						$caption = preg_quote($label["caption"]);
 
 						if ($caption && preg_match("/\b$caption\b/i", "$tags_str " . strip_tags($entry_content) . " $entry_title")) {
 							if (!labels_contains_caption($article_labels, $caption)) {
-								label_add_article($link, $entry_ref_id, $caption, $owner_uid);
+								label_add_article($entry_ref_id, $caption, $owner_uid);
 							}
 						}
 					}
 				}
 
-				if ($debug_enabled) {
-					_debug("update_rss_feed: article processed");
-				}
+				_debug("article processed", $debug_enabled);
 			}
 
 			if (!$last_updated) {
-				if ($debug_enabled) {
-					_debug("update_rss_feed: new feed, catching it up...");
-				}
-				catchup_feed($link, $feed, false, $owner_uid);
+				_debug("new feed, catching it up...", $debug_enabled);
+				catchup_feed($feed, false, $owner_uid);
 			}
 
-			if ($debug_enabled) {
-				_debug("purging feed...");
-			}
+			_debug("purging feed...", $debug_enabled);
 
-			purge_feed($link, $feed, 0, $debug_enabled);
+			purge_feed($feed, 0, $debug_enabled);
 
-			db_query($link, "UPDATE ttrss_feeds
+			db_query("UPDATE ttrss_feeds
 				SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 
-//			db_query($link, "COMMIT");
+//			db_query("COMMIT");
 
 		} else {
 
-			$error_msg = db_escape_string($link, mb_substr($rss->error(), 0, 245));
+			$error_msg = db_escape_string(mb_substr($rss->error(), 0, 245));
 
-			if ($debug_enabled) {
-				_debug("update_rss_feed: error fetching feed: $error_msg");
-			}
+			_debug("error fetching feed: $error_msg", $debug_enabled);
 
-			db_query($link,
+			db_query(
 				"UPDATE ttrss_feeds SET last_error = '$error_msg',
 					last_updated = NOW() WHERE id = '$feed'");
 		}
 
 		unset($rss);
 
-		if ($debug_enabled) {
-			_debug("update_rss_feed: done");
-		}
-
+		_debug("done", $debug_enabled);
 	}
 
 	function cache_images($html, $site_url, $debug) {
@@ -1169,8 +1136,21 @@
 		return $doc->saveXML($node);
 	}
 
+	function expire_error_log($debug) {
+		if ($debug) _debug("Removing old error log entries...");
+
+		if (DB_TYPE == "pgsql") {
+			db_query("DELETE FROM ttrss_error_log
+				WHERE created_at < NOW() - INTERVAL '7 days'");
+		} else {
+			db_query("DELETE FROM ttrss_error_log
+				WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
+		}
+
+	}
+
 	function expire_lock_files($debug) {
-		if ($debug) _debug("Removing old lock files...");
+		//if ($debug) _debug("Removing old lock files...");
 
 		$num_deleted = 0;
 
@@ -1179,7 +1159,7 @@
 
 			if ($files) {
 				foreach ($files as $file) {
-					if (!file_is_locked($file) && time() - filemtime($file) > 86400*2) {
+					if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
 						unlink($file);
 						++$num_deleted;
 					}
@@ -1187,14 +1167,14 @@
 			}
 		}
 
-		if ($debug) _debug("Removed $num_deleted files.");
+		if ($debug) _debug("Removed $num_deleted old lock files.");
 	}
 
 	function expire_cached_files($debug) {
-		foreach (array("simplepie", "images", "export") as $dir) {
+		foreach (array("simplepie", "images", "export", "upload") as $dir) {
 			$cache_dir = CACHE_DIR . "/$dir";
 
-			if ($debug) _debug("Expiring $cache_dir");
+//			if ($debug) _debug("Expiring $cache_dir");
 
 			$num_deleted = 0;
 
@@ -1212,7 +1192,7 @@
 				}
 			}
 
-			if ($debug) _debug("Removed $num_deleted files.");
+			if ($debug) _debug("$cache_dir: removed $num_deleted files.");
 		}
 	}
 
@@ -1246,7 +1226,7 @@
 
 			foreach ($filter["rules"] as $rule) {
 				$match = false;
-				$reg_exp = $rule["reg_exp"];
+				$reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
 				$rule_inverse = $rule["inverse"];
 
 				if (!$reg_exp)
@@ -1275,8 +1255,12 @@
 					$match = @preg_match("/$reg_exp/i", $author);
 					break;
 				case "tag":
-					$tag_string = join(",", $tags);
-					$match = @preg_match("/$reg_exp/i", $tag_string);
+					foreach ($tags as $tag) {
+						if (@preg_match("/$reg_exp/i", $tag)) {
+							$match = true;
+							break;
+						}
+					}
 					break;
 				}
 
@@ -1351,11 +1335,11 @@
 		return false;
 	}
 
-	function assign_article_to_label_filters($link, $id, $filters, $owner_uid, $article_labels) {
+	function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
 		foreach ($filters as $f) {
 			if ($f["type"] == "label") {
 				if (!labels_contains_caption($article_labels, $f["param"])) {
-					label_add_article($link, $id, $f["param"], $owner_uid);
+					label_add_article($id, $f["param"], $owner_uid);
 				}
 			}
 		}
@@ -1366,5 +1350,26 @@
 			mb_strtolower(strip_tags($title), 'utf-8'));
 	}
 
+	function verify_feed_xml($feed_data) {
+		libxml_use_internal_errors(true);
+		$doc = new DOMDocument();
+		$doc->loadXML($feed_data);
+		$error = libxml_get_last_error();
+		libxml_clear_errors();
+		return $error;
+	}
 
+	function housekeeping_common($debug) {
+		expire_cached_files($debug);
+		expire_lock_files($debug);
+		expire_error_log($debug);
+
+		$count = update_feedbrowser_cache();
+		_debug("Feedbrowser updated, $count feeds processed.");
+
+		purge_orphans( true);
+		$rc = cleanup_tags( 14, 50000);
+
+		_debug("Cleaned $rc cached tags.");
+	}
 ?>
diff --git a/include/sanity_check.php b/include/sanity_check.php
index 99d3051f3..b2888b1d7 100644
--- a/include/sanity_check.php
+++ b/include/sanity_check.php
@@ -21,7 +21,7 @@
 		return $url_path;
 	}
 
-	function initial_sanity_check($link) {
+	function initial_sanity_check() {
 
 		$errors = array();
 
@@ -55,6 +55,10 @@
 				array_push($errors, "Image cache is not writable (chmod -R 777 ".CACHE_DIR."/images)");
 			}
 
+			if (!is_writable(CACHE_DIR . "/upload")) {
+				array_push($errors, "Upload cache is not writable (chmod -R 777 ".CACHE_DIR."/upload)");
+			}
+
 			if (!is_writable(CACHE_DIR . "/export")) {
 				array_push($errors, "Data export cache is not writable (chmod -R 777 ".CACHE_DIR."/export)");
 			}
@@ -63,6 +67,14 @@
 				array_push($errors, "Javascript cache is not writable (chmod -R 777 ".CACHE_DIR."/js)");
 			}
 
+			if (strlen(FEED_CRYPT_KEY) > 0 && strlen(FEED_CRYPT_KEY) != 24) {
+				array_push($errors, "FEED_CRYPT_KEY should be exactly 24 characters in length.");
+			}
+
+			if (strlen(FEED_CRYPT_KEY) > 0 && !function_exists("mcrypt_decrypt")) {
+				array_push($errors, "FEED_CRYPT_KEY requires mcrypt functions which are not found.");
+			}
+
 			if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) {
 				array_push($errors,
 					"Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh");
@@ -76,14 +88,10 @@
 			}
 
 			if (SINGLE_USER_MODE) {
-				$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
-
-				if ($link) {
-					$result = db_query($link, "SELECT id FROM ttrss_users WHERE id = 1");
+				$result = db_query("SELECT id FROM ttrss_users WHERE id = 1");
 
-					if (db_num_rows($result) != 1) {
-						array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found.");
-					}
+				if (db_num_rows($result) != 1) {
+					array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found.");
 				}
 			}
 
@@ -102,10 +110,6 @@
 				array_push($errors, "LOCK_DIRECTORY defined in config.php is not writable (chmod -R 777 ".LOCK_DIRECTORY.").\n");
 			}
 
-			if (ini_get("open_basedir")) {
-				array_push($errors, "PHP configuration option open_basedir is not supported. Please disable this in PHP settings file (php.ini).");
-			}
-
 			if (!function_exists("curl_init") && !ini_get("allow_url_fopen")) {
 				array_push($errors, "PHP configuration option allow_url_fopen is disabled, and CURL functions are not present. Either enable allow_url_fopen or install PHP extension for CURL.");
 			}
@@ -114,7 +118,7 @@
 				array_push($errors, "PHP support for JSON is required, but was not found.");
 			}
 
-			if (DB_TYPE == "mysql" && !function_exists("mysql_connect")) {
+			if (DB_TYPE == "mysql" && !function_exists("mysql_connect") && !function_exists("mysqli_connect")) {
 				array_push($errors, "PHP support for MySQL is required for configured DB_TYPE in config.php.");
 			}
 
@@ -194,6 +198,6 @@
 		}
 	}
 
-	initial_sanity_check($link);
+	initial_sanity_check();
 
 ?>
diff --git a/include/sanity_config.php b/include/sanity_config.php
index cb1c1e8ca..7d8afe102 100644
--- a/include/sanity_config.php
+++ b/include/sanity_config.php
@@ -1,3 +1,3 @@
-<?php # This file has been generated at:  Mon Apr 1 18:30:54 IDT 2013
+<?php # This file has been generated at:  Fri Apr 19 09:22:33 MSK 2013
 define('GENERATED_CONFIG_CHECK', 26);
-$requred_defines = array( 'DB_TYPE', 'DB_HOST', 'DB_USER', 'DB_NAME', 'DB_PASS', 'MYSQL_CHARSET', 'SELF_URL_PATH', 'SINGLE_USER_MODE', 'SIMPLE_UPDATE_MODE', 'PHP_EXECUTABLE', 'LOCK_DIRECTORY', 'CACHE_DIR', 'ICONS_DIR', 'ICONS_URL', 'AUTH_AUTO_CREATE', 'AUTH_AUTO_LOGIN', 'FORCE_ARTICLE_PURGE', 'PUBSUBHUBBUB_HUB', 'PUBSUBHUBBUB_ENABLED', 'SPHINX_ENABLED', 'SPHINX_INDEX', 'ENABLE_REGISTRATION', 'REG_NOTIFY_ADDRESS', 'REG_MAX_USERS', 'SESSION_COOKIE_LIFETIME', 'SESSION_CHECK_ADDRESS', 'SMTP_FROM_NAME', 'SMTP_FROM_ADDRESS', 'DIGEST_SUBJECT', 'SMTP_HOST', 'SMTP_PORT', 'SMTP_LOGIN', 'SMTP_PASSWORD', 'CHECK_FOR_NEW_VERSION', 'ENABLE_GZIP_OUTPUT', 'PLUGINS', 'CONFIG_VERSION'); ?>
+$requred_defines = array( 'DB_TYPE', 'DB_HOST', 'DB_USER', 'DB_NAME', 'DB_PASS', 'MYSQL_CHARSET', 'SELF_URL_PATH', 'FEED_CRYPT_KEY', 'SINGLE_USER_MODE', 'SIMPLE_UPDATE_MODE', 'PHP_EXECUTABLE', 'LOCK_DIRECTORY', 'CACHE_DIR', 'ICONS_DIR', 'ICONS_URL', 'AUTH_AUTO_CREATE', 'AUTH_AUTO_LOGIN', 'FORCE_ARTICLE_PURGE', 'PUBSUBHUBBUB_HUB', 'PUBSUBHUBBUB_ENABLED', 'SPHINX_ENABLED', 'SPHINX_SERVER', 'SPHINX_INDEX', 'ENABLE_REGISTRATION', 'REG_NOTIFY_ADDRESS', 'REG_MAX_USERS', 'SESSION_COOKIE_LIFETIME', 'SESSION_CHECK_ADDRESS', 'SMTP_FROM_NAME', 'SMTP_FROM_ADDRESS', 'DIGEST_SUBJECT', 'SMTP_SERVER', 'SMTP_LOGIN', 'SMTP_PASSWORD', 'CHECK_FOR_NEW_VERSION', 'ENABLE_GZIP_OUTPUT', 'PLUGINS', 'LOG_DESTINATION', 'CONFIG_VERSION'); ?>
diff --git a/include/sessions.php b/include/sessions.php
index 402e8b8de..423ef0eda 100644
--- a/include/sessions.php
+++ b/include/sessions.php
@@ -2,7 +2,9 @@
 	// Original from http://www.daniweb.com/code/snippet43.html
 
 	require_once "config.php";
-	require_once "db.php";
+	require_once "classes/db.php";
+	require_once "autoload.php";
+	require_once "errorhandler.php";
 	require_once "lib/accept-to-gettext.php";
 	require_once "lib/gettext/gettext.inc";
 	require_once "version.php";
@@ -21,14 +23,12 @@
 	ini_set("session.gc_maxlifetime", $session_expire);
 	ini_set("session.cookie_lifetime", min(0, SESSION_COOKIE_LIFETIME));
 
-	global $session_connection;
-
-	function session_get_schema_version($link, $nocache = false) {
+	function session_get_schema_version($nocache = false) {
 		global $schema_version;
 
 		if (!$schema_version) {
-			$result = db_query($link, "SELECT schema_version FROM ttrss_version");
-			$version = db_fetch_result($result, 0, "schema_version");
+			$result = Db::get()->query("SELECT schema_version FROM ttrss_version");
+			$version = Db::get()->fetch_result($result, 0, "schema_version");
 			$schema_version = $version;
 			return $version;
 		} else {
@@ -36,11 +36,10 @@
 		}
 	}
 
-	function validate_session($link) {
+	function validate_session() {
 		if (SINGLE_USER_MODE) return true;
-		if (!$link) return false;
 
-		if (VERSION != $_SESSION["version"]) return false;
+		if (VERSION_STATIC != $_SESSION["version"]) return false;
 
 		$check_ip = $_SESSION['ip_address'];
 
@@ -63,21 +62,21 @@
 			return false;
 		}
 
-		if ($_SESSION["ref_schema_version"] != session_get_schema_version($link, true))
+		if ($_SESSION["ref_schema_version"] != session_get_schema_version(true))
 			return false;
 
 		if (sha1($_SERVER['HTTP_USER_AGENT']) != $_SESSION["user_agent"])
 			return false;
 
 		if ($_SESSION["uid"]) {
-			$result = db_query($link,
+			$result = Db::get()->query(
 				"SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
 
 			// user not found
-			if (db_num_rows($result) == 0) {
+			if (Db::get()->num_rows($result) == 0) {
 				return false;
 			} else {
-				$pwd_hash = db_fetch_result($result, 0, "pwd_hash");
+				$pwd_hash = Db::get()->fetch_result($result, 0, "pwd_hash");
 
 				if ($pwd_hash != $_SESSION["pwd_hash"]) {
 					return false;
@@ -85,101 +84,63 @@
 			}
 		}
 
-/*		if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
-
-			//print_r($_SESSION);
-
-			if (time() > $_SESSION["cookie_lifetime"]) {
-				return false;
-			}
-		} */
-
 		return true;
 	}
 
 
 	function ttrss_open ($s, $n) {
-		global $session_connection;
-
-		$session_connection = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
-
 		return true;
 	}
 
 	function ttrss_read ($id){
+		global $session_expire;
+
+		$res = Db::get()->query("SELECT data FROM ttrss_sessions WHERE id='$id'");
 
-		global $session_connection,$session_read;
+		if (Db::get()->num_rows($res) != 1) {
 
-		$query = "SELECT data FROM ttrss_sessions WHERE id='$id'";
+			$expire = time() + $session_expire;
 
-		$res = db_query($session_connection, $query);
+			Db::get()->query("INSERT INTO ttrss_sessions (id, data, expire)
+					VALUES ('$id', '', '$expire')");
 
-		if (db_num_rows($res) != 1) {
 		 	return "";
 		} else {
-			$session_read = db_fetch_assoc($res);
-			$session_read["data"] = base64_decode($session_read["data"]);
-			return $session_read["data"];
+			return base64_decode(Db::get()->fetch_result($res, 0, "data"));
 		}
+
 	}
 
 	function ttrss_write ($id, $data) {
+		global $session_expire;
 
-		if (! $data) {
-			return false;
-		}
-
-		global $session_connection, $session_read, $session_expire;
-
+		$data = base64_encode($data);
 		$expire = time() + $session_expire;
 
-		$data = db_escape_string($session_connection, base64_encode($data), false);
-
-		if ($session_read) {
-		 	$query = "UPDATE ttrss_sessions SET data='$data',
-					expire='$expire' WHERE id='$id'";
-		} else {
-		 	$query = "INSERT INTO ttrss_sessions (id, data, expire)
-					VALUES ('$id', '$data', '$expire')";
-		}
+		Db::get()->query("UPDATE ttrss_sessions SET data='$data', expire='$expire' WHERE id='$id'");
 
-		db_query($session_connection, $query);
 		return true;
 	}
 
 	function ttrss_close () {
-
-		global $session_connection;
-
-		//db_close($session_connection);
-
 		return true;
 	}
 
-	function ttrss_destroy ($id) {
-
-		global $session_connection;
-
-		$query = "DELETE FROM ttrss_sessions WHERE id = '$id'";
-
-		db_query($session_connection, $query);
+	function ttrss_destroy($id) {
+		Db::get()->query("DELETE FROM ttrss_sessions WHERE id = '$id'");
 
 		return true;
 	}
 
 	function ttrss_gc ($expire) {
-
-		global $session_connection;
-
-		$query = "DELETE FROM ttrss_sessions WHERE expire < " . time();
-
-		db_query($session_connection, $query);
+		Db::get()->query("DELETE FROM ttrss_sessions WHERE expire < " . time());
 	}
 
 	if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) {
 		session_set_save_handler("ttrss_open",
 			"ttrss_close", "ttrss_read", "ttrss_write",
 			"ttrss_destroy", "ttrss_gc");
+		register_shutdown_function('session_write_close');
 	}
 
 	if (!defined('NO_SESSION_AUTOSTART')) {
diff --git a/include/version.php b/include/version.php
index 61851dffb..0e583f9ec 100644
--- a/include/version.php
+++ b/include/version.php
@@ -1,3 +1,19 @@
 <?php
-	define('VERSION', "1.7.8");
+	define('VERSION_STATIC', '1.7.8');
+
+	function get_version() {
+		date_default_timezone_set('UTC');
+		$root_dir = dirname(dirname(__FILE__));
+
+		if (is_dir("$root_dir/.git") && file_exists("$root_dir/.git/ORIG_HEAD")) {
+
+			$suffix = substr(trim(file_get_contents("$root_dir/.git/ORIG_HEAD")), 0, 7);
+
+			return VERSION_STATIC . ".$suffix";
+		} else {
+			return VERSION_STATIC;
+		}
+	}
+
+	define('VERSION', get_version());
 ?>