]> git.wh0rd.org - tt-rss.git/blobdiff - functions.php
last-minute theme compatibility fixes for 1.2.7
[tt-rss.git] / functions.php
index 133a8ccf9092a9039a70ebf80edc8afe6ea39734..d9348b44dcf19c591c1802d5a30b040391378a25 100644 (file)
@@ -1,4 +1,4 @@
-<?
+<?php
 
 /*     if ($_GET["debug"]) {
                define('DEFAULT_ERROR_LEVEL', E_ALL);
        require_once 'errors.php';
        require_once 'version.php';
 
-       if (RSS_BACKEND_TYPE == "magpie") {     
-               require_once 'magpierss/rss_utils.inc';
-       } else if (RSS_BACKEND_TYPE == "simplepie") {
-               require_once 'simplepie/simplepie.inc';
-       }
-
+       define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
        define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 
+       require_once "magpierss/rss_fetch.inc";
+       require_once 'magpierss/rss_utils.inc';
+
        function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 
                $rows = -1;
                        $upd_intl = $line["update_interval"];
 
                        if (!$upd_intl || $upd_intl == 0) {
-                               $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
+                               $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id, false);
                        }
 
                        if ($upd_intl < 0) { 
 
        }
 
-       function check_feed_favicon($feed_url, $feed, $link) {
-               $feed_url = str_replace("http://", "", $feed_url);
-               $feed_url = preg_replace("/\/.*$/", "", $feed_url);
-               
-               $icon_url = "http://$feed_url/favicon.ico";
-               $icon_file = ICONS_DIR . "/$feed.ico";
+       function fetch_file_contents($url) {
+               if (USE_CURL_FOR_ICONS) {
+                       $tmpfile = tempnam(TMP_DIRECTORY, "ttrss-tmp");
 
-               if (!file_exists($icon_file)) {
-                               
-                       error_reporting(0);
-                       $r = fopen($icon_url, "r");
-                       error_reporting (DEFAULT_ERROR_LEVEL);
+                       $ch = curl_init($url);
+                       $fp = fopen($tmpfile, "w");
 
-                       if ($r) {
-                               $tmpfname = tempnam(TMP_DIRECTORY, "ttrssicon");
-                       
-                               $t = fopen($tmpfname, "w");
-                               
-                               while (!feof($r)) {
-                                       $buf = fread($r, 16384);
-                                       fwrite($t, $buf);
-                               }
-                               
-                               fclose($r);
-                               fclose($t);
+                       if ($fp) {
+                               curl_setopt($ch, CURLOPT_FILE, $fp);
+                               curl_exec($ch);
+                               curl_close($ch);
+                               fclose($fp);                                    
+                       }
+
+                       $contents =  file_get_contents($tmpfile);
+                       unlink($tmpfile);
+
+                       return $contents;
+
+               } else {
+                       return file_get_contents($url);
+               }
+
+       }
+
+       // adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
+       // http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 
-                               error_reporting(0);
-                               if (!rename($tmpfname, $icon_file)) {
-                                       unlink($tmpfname);
+       function get_favicon_url($url) {
+
+               if ($html = @fetch_file_contents($url)) {
+
+                       if ( preg_match('/<link[^>]+rel="(?:shortcut )?icon"[^>]+?href="([^"]+?)"/si', $html, $matches)) {
+                               // Attempt to grab a favicon link from their webpage url
+                               $linkUrl = html_entity_decode($matches[1]);
+
+                               if (substr($linkUrl, 0, 1) == '/') {
+                                       $urlParts = parse_url($url);
+                                       $faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].$linkUrl;
+                               } else if (substr($linkUrl, 0, 7) == 'http://') {
+                                       $faviconURL = $linkUrl;
+                               } else if (substr($url, -1, 1) == '/') {
+                                       $faviconURL = $url.$linkUrl;
+                               } else {
+                                       $faviconURL = $url.'/'.$linkUrl;
                                }
 
-                               chmod($icon_file, 0644);
+                       } else {
+                               // If unsuccessful, attempt to "guess" the favicon location
+                               $urlParts = parse_url($url);
+                               $faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].'/favicon.ico';
+                       }
+               }
+
+               // Run a test to see if what we have attempted to get actually exists.
+               if(USE_CURL_FOR_ICONS || url_validate($faviconURL)) {
+                       return $faviconURL;
+               } else {
+                       return false;
+               }
+       }
+
+       function url_validate($link) {
+                
+               $url_parts = @parse_url($link);
+
+               if ( empty( $url_parts["host"] ) )
+                               return false;
+
+               if ( !empty( $url_parts["path"] ) ) {
+                               $documentpath = $url_parts["path"];
+               } else {
+                               $documentpath = "/";
+               }
+
+               if ( !empty( $url_parts["query"] ) )
+                               $documentpath .= "?" . $url_parts["query"];
+
+               $host = $url_parts["host"];
+               $port = $url_parts["port"];
+               
+               if ( empty($port) )
+                               $port = "80";
+
+               $socket = @fsockopen( $host, $port, $errno, $errstr, 30 );
+               
+               if ( !$socket )
+                               return false;
                                
-                               error_reporting (DEFAULT_ERROR_LEVEL);
+               fwrite ($socket, "HEAD ".$documentpath." HTTP/1.0\r\nHost: $host\r\n\r\n");
+
+               $http_response = fgets( $socket, 22 );
+
+               $responses = "/(200 OK)|(30[0-9] Moved)/";
+               if ( preg_match($responses, $http_response) ) {
+                               fclose($socket);
+                               return true;
+               } else {
+                               return false;
+               }
+
+       } 
+
+       function check_feed_favicon($site_url, $feed, $link) {
+               $favicon_url = get_favicon_url($site_url);
+
+#              print "FAVICON [$site_url]: $favicon_url\n";
+
+               error_reporting(0);
 
-                       }       
+               $icon_file = ICONS_DIR . "/$feed.ico";
+
+               if ($favicon_url && !file_exists($icon_file)) {
+                       $contents = fetch_file_contents($favicon_url);
+
+                       $fp = fopen($icon_file, "w");
+
+                       if ($fp) {
+                               fwrite($fp, $contents);
+                               fclose($fp);
+                               chmod($icon_file, 0644);
+                       }
                }
+
+               error_reporting(DEFAULT_ERROR_LEVEL);
+
        }
 
        function update_rss_feed($link, $feed_url, $feed, $ignore_daemon = false) {
 
-               if (WEB_DEMO_MODE) return;
-
                if (DAEMON_REFRESH_ONLY && !$_GET["daemon"] && !$ignore_daemon) {
                        return;                 
                }
 
                }
 
-               if (RSS_BACKEND_TYPE == "magpie") {             
-                       error_reporting(0);
-                       $rss = fetch_rss($fetch_url);
-                       error_reporting (DEFAULT_ERROR_LEVEL);
-               } else if (RSS_BACKEND_TYPE == "simplepie") {
-                       
-                       if (!file_exists(SIMPLEPIE_CACHE_DIR)) {
-                                       mkdir(SIMPLEPIE_CACHE_DIR);
-                       }
-
-                       $rss = new SimplePie();
-                       $rss->feed_url($fetch_url);
-                       $rss->cache_location(SIMPLEPIE_CACHE_DIR);
-                       $rss->init();
-               }
+               error_reporting(0);
+               $rss = fetch_rss($fetch_url);
+               error_reporting (DEFAULT_ERROR_LEVEL);
                
                $feed = db_escape_string($feed);
 
-               $rss_check = $rss;
-
-               if (RSS_BACKEND_TYPE == "simplepie") {
-                       $rss_check = $rss->data;
-               }
-               
-               if ($rss_check) {
+               if ($rss) {
                        
 //                     db_query($link, "BEGIN");
 
 
                        $owner_uid = db_fetch_result($result, 0, "owner_uid");
 
-                       if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid)) { 
-                               check_feed_favicon($feed_url, $feed, $link);
+                       if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid, false)) {  
+                               check_feed_favicon($rss->channel["link"], $feed, $link);
                        }
 
                        if (!$registered_title || $registered_title == "[Unknown]") {
                        
-                               if (RSS_BACKEND_TYPE == "magpie") {                             
-                                       $feed_title = db_escape_string($rss->channel["title"]);
-                               } else {
-                                       $feed_title = $rss->get_feed_title();
-                               }
+                               $feed_title = db_escape_string($rss->channel["title"]);
                                
                                db_query($link, "UPDATE ttrss_feeds SET 
                                        title = '$feed_title' WHERE id = '$feed'");
                        }
 
-                       if (RSS_BACKEND_TYPE == "magpie") {                             
-                               $site_url = $rss->channel["link"];
-                               // weird, weird Magpie
-                               if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
-                       } else {
-                               $site_url = $rss->get_feed_link();
-                       }
+                       $site_url = $rss->channel["link"];
+                       // weird, weird Magpie
+                       if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 
                        if ($site_url && $orig_site_url != db_escape_string($site_url)) {
                                db_query($link, "UPDATE ttrss_feeds SET 
 
 //                     print "I: " . $rss->channel["image"]["url"];
 
-                       if (RSS_BACKEND_TYPE == "magpie") {
-                               $icon_url = $rss->image["url"];
-                       } else {
-                               $icon_url = $rss->get_image_url(); # FIXME
-                       }
+                       $icon_url = $rss->image["url"];
 
                        if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
                                $icon_url = db_escape_string($icon_url);
 
                        $result = db_query($link, "SELECT reg_exp,
                                ttrss_filter_types.name AS name,
-                               ttrss_filter_actions.name AS action
+                               ttrss_filter_actions.name AS action,
+                               action_param
                                FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE                                        
+                                       enabled = true AND
                                        owner_uid = $owner_uid AND
                                        ttrss_filter_types.id = filter_type AND
                                        ttrss_filter_actions.id = action_id AND
 
                                $filter["reg_exp"] = $line["reg_exp"];
                                $filter["action"] = $line["action"];
-                               
+                               $filter["action_param"] = $line["action_param"];
+                       
                                array_push($filters[$line["name"]], $filter);
                        }
 
-                       if (RSS_BACKEND_TYPE == "magpie") {                     
-                               $iterator = $rss->items;
-
-                               if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
-                               if (!$iterator || !is_array($iterator)) $iterator = $rss;
+                       $iterator = $rss->items;
 
-                       } else {
-                               $iterator = $rss->get_items();
-                       }
+                       if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
+                       if (!$iterator || !is_array($iterator)) $iterator = $rss;
 
                        if (!is_array($iterator)) {
                                /* db_query($link, "UPDATE ttrss_feeds 
 
                        foreach ($iterator as $item) {
 
-                               if (RSS_BACKEND_TYPE == "magpie") {
-                               
-                                       $entry_guid = $item["id"];
-               
-                                       if (!$entry_guid) $entry_guid = $item["guid"];
-                                       if (!$entry_guid) $entry_guid = $item["link"];
-       
-                                       if (!$entry_guid) continue;
-       
-                                       $entry_timestamp = "";
+                               $entry_guid = $item["id"];
        
-                                       $rss_2_date = $item['pubdate'];
-                                       $rss_1_date = $item['dc']['date'];
-                                       $atom_date = $item['issued'];
-                                       if (!$atom_date) $atom_date = $item['updated'];
+                               if (!$entry_guid) $entry_guid = $item["guid"];
+                               if (!$entry_guid) $entry_guid = $item["link"];
+                               if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
+
+                               if (!$entry_guid) continue;
+
+                               $entry_timestamp = "";
+
+                               $rss_2_date = $item['pubdate'];
+                               $rss_1_date = $item['dc']['date'];
+                               $atom_date = $item['issued'];
+                               if (!$atom_date) $atom_date = $item['updated'];
+                       
+                               if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
+                               if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
+                               if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
                                
-                                       if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
-                                       if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
-                                       if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
-                                       
-                                       if ($entry_timestamp == "") {
-                                               $entry_timestamp = time();
-                                               $no_orig_date = 'true';
-                                       } else {
-                                               $no_orig_date = 'false';
-                                       }
-       
-                                       $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
-       
-                                       $entry_title = $item["title"];
-       
-                                       // strange Magpie workaround
-                                       $entry_link = $item["link_"];
-                                       if (!$entry_link) $entry_link = $item["link"];
-       
-                                       if (!$entry_title) continue;
-                                       if (!$entry_link) continue;
-       
-                                       $entry_content = $item["content:escaped"];
-       
-                                       if (!$entry_content) $entry_content = $item["content:encoded"];
-                                       if (!$entry_content) $entry_content = $item["content"];
-                                       if (!$entry_content) $entry_content = $item["atom_content"];
-                                       if (!$entry_content) $entry_content = $item["summary"];
-                                       if (!$entry_content) $entry_content = $item["description"];
-       
-       //                              if (!$entry_content) continue;
-       
-                                       // WTF
-                                       if (is_array($entry_content)) {
-                                               $entry_content = $entry_content["encoded"];
-                                               if (!$entry_content) $entry_content = $entry_content["escaped"];
-                                       }
-       
-       //                              print_r($item);
-       //                              print_r(htmlspecialchars($entry_content));
-       //                              print "<br>";
-       
-                                       $entry_content_unescaped = $entry_content;
-                                       $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
-       
-                                       $entry_comments = $item["comments"];
-       
-                                       $entry_author = db_escape_string($item['dc']['creator']);
-       
-                                       $entry_guid = db_escape_string($entry_guid);
-       
-                                       $result = db_query($link, "SELECT id FROM       ttrss_entries 
-                                               WHERE guid = '$entry_guid'");
-       
-                                       $entry_content = db_escape_string($entry_content);
-                                       $entry_title = db_escape_string($entry_title);
-                                       $entry_link = db_escape_string($entry_link);
-                                       $entry_comments = db_escape_string($entry_comments);
-       
-                                       $num_comments = db_escape_string($item["slash"]["comments"]);
-       
-                                       if (!$num_comments) $num_comments = 0;
+                               if ($entry_timestamp == "") {
+                                       $entry_timestamp = time();
+                                       $no_orig_date = 'true';
+                               } else {
+                                       $no_orig_date = 'false';
+                               }
+
+                               $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
+
+                               $entry_title = trim(strip_tags($item["title"]));
+
+                               // strange Magpie workaround
+                               $entry_link = $item["link_"];
+                               if (!$entry_link) $entry_link = $item["link"];
+
+                               if (!$entry_title) continue;
+#                                      if (!$entry_link) continue;
+
+                               $entry_link = strip_tags($entry_link);
+
+                               $entry_content = $item["content:escaped"];
+
+                               if (!$entry_content) $entry_content = $item["content:encoded"];
+                               if (!$entry_content) $entry_content = $item["content"];
+                               if (!$entry_content) $entry_content = $item["atom_content"];
+                               if (!$entry_content) $entry_content = $item["summary"];
+                               if (!$entry_content) $entry_content = $item["description"];
+
+//                             if (!$entry_content) continue;
+
+                               // WTF
+                               if (is_array($entry_content)) {
+                                       $entry_content = $entry_content["encoded"];
+                                       if (!$entry_content) $entry_content = $entry_content["escaped"];
+                               }
+
+//                             print_r($item);
+//                             print_r(htmlspecialchars($entry_content));
+//                             print "<br>";
+
+                               $entry_content_unescaped = $entry_content;
+                               $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 
-                               } else if (RSS_BACKEND_TYPE == "simplepie") {
+                               $entry_comments = strip_tags($item["comments"]);
 
-                                       $entry_guid = $item->get_id();
+                               $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 
-                                       if (!$entry_guid) {
-                                                       $entry_guid = $item->get_permalink();
+                               if ($item['author']) {
+                                       if (!$entry_author) {
+                                               $entry_author = db_escape_string(strip_tags($item['author']['name']));
                                        }
-       
-                                       if (!$entry_guid) continue;
-                                       
-                                       $entry_timestamp = $item->get_date("U");
-                                       
-                                       if ($entry_timestamp == "") {
-                                               $entry_timestamp = time();
-                                               $no_orig_date = 'true';
-                                       } else {
-                                               $no_orig_date = 'false';
+
+                                       if (!$entry_author) {
+                                               $entry_author = db_escape_string(strip_tags($item['author']['email']));
                                        }
-       
-                                       $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
-       
-                                       $entry_title = $item->get_title();
-                                       $entry_link = $item->get_permalink();
-       
-                                       if (!$entry_title) continue;
-                                       if (!$entry_link) continue;
 
-                                       $entry_content = $item->get_description();
-                                               
-//                                     print_r(htmlspecialchars($entry_content));
-//                                     print "<br>";
-       
-                                       $entry_content_unescaped = $entry_content;
-                                       $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
-       
-                                       $entry_comments = ""; # FIXME
-                                       
-                                       $entry_author = $item->get_author(0);
+                                       if (!$entry_author) {
+                                               $entry_author = db_escape_string(strip_tags($item['author']));
+                                       }
+                               }
 
-                                       $entry_author = db_escape_string($entry_author->name);
-                                       
-                                       $entry_guid = db_escape_string($entry_guid);
+                               if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 
-                                       $result = db_query($link, "SELECT id FROM       ttrss_entries 
-                                               WHERE guid = '$entry_guid'");
-       
-                                       $entry_content = db_escape_string($entry_content);
-                                       $entry_title = db_escape_string($entry_title);
-                                       $entry_link = db_escape_string($entry_link);
-                                       $entry_comments = db_escape_string($entry_comments);
-       
-                                       $num_comments = 0; # FIXME
-       
-                                       if (!$num_comments) $num_comments = 0;
+                               $entry_guid = db_escape_string(strip_tags($entry_guid));
+
+                               $result = db_query($link, "SELECT id FROM       ttrss_entries 
+                                       WHERE guid = '$entry_guid'");
 
+                               $entry_content = db_escape_string($entry_content);
+                               $entry_title = db_escape_string($entry_title);
+                               $entry_link = db_escape_string($entry_link);
+                               $entry_comments = db_escape_string($entry_comments);
+
+                               $num_comments = db_escape_string($item["slash"]["comments"]);
+
+                               if (!$num_comments) $num_comments = 0;
+
+                               $dc_subject = $item['dc']['subject'];
+
+                               $subject_tags = false;
+
+                               if (is_array($dc_subject)) {
+                                       $subject_tags = $dc_subject;
+                               } else if ($dc_subject) {
+                                       $subject_tags = array($dc_subject);
                                }
 
                                # sanitize content
-                               $entry_content = preg_replace('/<script.*?>/i', 
-                                       "<p class=\"scriptWarn\">", $entry_content);
-
-                               $entry_content = preg_replace('/<\/script>/i', 
-                                       "</p>", $entry_content);
+                               
+                               $entry_content = sanitize_rss($entry_content);
 
                                db_query($link, "BEGIN");
 
                                        // 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", $owner_uid)) {
+                                       if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
                                                $dupcheck_qpart = "AND feed_id = '$feed'";
                                        } else { 
                                                $dupcheck_qpart = "";
 
 //                                     error_reporting(0);
 
-                                       $filter_name = get_filter_name($entry_title, $entry_content, 
+                                       $tuple = get_filter_name($entry_title, $entry_content, 
                                                $entry_link, $filters);
 
+                                       $filter_name = $tuple[0];
+                                       $filter_param = $tuple[1];
+
                                        if ($filter_name == "filter") {
                                                continue;
                                        }
                                        
                                        $post_needs_update = false;
 
-                                       if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid) &&
+                                       if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid, false) &&
                                                ($content_hash != $orig_content_hash)) {
                                                $post_needs_update = true;
                                        }
                                                                num_comments = '$num_comments'
                                                        WHERE id = '$ref_id'");
 
-                                               if (get_pref($link, "MARK_UNREAD_ON_UPDATE")) {
+                                               if (get_pref($link, "MARK_UNREAD_ON_UPDATE", $owner_uid, false)) {
                                                        db_query($link, "UPDATE ttrss_user_entries 
                                                                SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
                                                } else {
 
                                $entry_tags = $entry_tags[1];
 
+                               # check for manual tags
+
+                               if ($filter_name == "tag") {
+
+                                       $manual_tags = trim_array(split(",", $filter_param));
+
+                                       foreach ($manual_tags as $tag) {                                        
+                                               if (tag_is_valid($tag)) {
+                                                       array_push($entry_tags, $tag);
+                                               }
+                                       }
+                               }
+
+                               if ($subject_tags) {
+                                       foreach ($subject_tags as $tag) {
+                                               if (tag_is_valid($tag)) {
+                                                       array_push($entry_tags, $tag);
+                                               }
+                                       }
+                               }
+
                                if (count($entry_tags) > 0) {
                                
                                        db_query($link, "BEGIN");
                        foreach ($filters["title"] as $filter) {
                                $reg_exp = $filter["reg_exp"];                  
                                if (preg_match("/$reg_exp/i", $title)) {
-                                       return $filter["action"];
+                                       return array($filter["action"], $filter["action_param"]);
                                }
                        }
                }
                        foreach ($filters["content"] as $filter) {
                                $reg_exp = $filter["reg_exp"];                  
                                if (preg_match("/$reg_exp/i", $content)) {
-                                       return $filter["action"];
+                                       return array($filter["action"], $filter["action_param"]);
                                }               
                        }
                }
                                $reg_exp = $filter["reg_exp"];          
                                if (preg_match("/$reg_exp/i", $title) || 
                                        preg_match("/$reg_exp/i", $content)) {
-                                       return $filter["action"];
+                                               return array($filter["action"], $filter["action_param"]);
                                }
                        }
                }
                        foreach ($filters["link"] as $filter) {
                                $reg_exp = $filter["reg_exp"];
                                if (preg_match("/$reg_exp/i", $link)) {
-                                       return $filter["action"];
+                                       return array($filter["action"], $filter["action_param"]);
                                }
                        }
                }
                return false;
        }
 
+       function get_filter_matches($title, $content, $link, $filters) {
+
+               $matches = array();
+
+               if ($filters["title"]) {
+                       foreach ($filters["title"] as $filter) {
+                               $reg_exp = $filter["reg_exp"];                  
+                               if (preg_match("/$reg_exp/i", $title)) {
+                                       array_push($matches, array($filter["action"], $filter["action_param"]));
+                               }
+                       }
+               }
+
+               if ($filters["content"]) {
+                       foreach ($filters["content"] as $filter) {
+                               $reg_exp = $filter["reg_exp"];                  
+                               if (preg_match("/$reg_exp/i", $content)) {
+                                       array_push($matches, array($filter["action"], $filter["action_param"]));
+                               }               
+                       }
+               }
+
+               if ($filters["both"]) {
+                       foreach ($filters["both"] as $filter) {                 
+                               $reg_exp = $filter["reg_exp"];          
+                               if (preg_match("/$reg_exp/i", $title) || 
+                                       preg_match("/$reg_exp/i", $content)) {
+                                               array_push($matches, array($filter["action"], $filter["action_param"]));
+                               }
+                       }
+               }
+
+               if ($filters["link"]) {
+                       $reg_exp = $filter["reg_exp"];
+                       foreach ($filters["link"] as $filter) {
+                               $reg_exp = $filter["reg_exp"];
+                               if (preg_match("/$reg_exp/i", $link)) {
+                                       array_push($matches, array($filter["action"], $filter["action_param"]));
+                               }
+                       }
+               }
+
+               return $matches;
+       }
+
        function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link,
                $rtl_content = false, $last_updated = false, $last_error = false) {
 
                        $link_title = "Updated: $last_updated";
                }
 
-               $feed = "<a title=\"$link_title\" id=\"FEEDL-$feed_id\" href=\"javascript:viewfeed('$feed_id', '', false);\">$feed_title</a>";
+               $feed = "<a title=\"$link_title\" id=\"FEEDL-$feed_id\" 
+                       href=\"javascript:viewfeed('$feed_id', '', false);\">$feed_title</a>";
 
                print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
                if (get_pref($link, 'ENABLE_FEED_ICONS')) {
                return true;
        }
 
-       function authenticate_user($link, $login, $password) {
+       function authenticate_user($link, $login, $password, $force_auth = false) {
 
                if (!SINGLE_USER_MODE) {
 
                        $pwd_hash = 'SHA1:' . sha1($password);
-       
-                       $result = db_query($link, "SELECT id,login,access_level FROM ttrss_users WHERE 
-                               login = '$login' AND pwd_hash = '$pwd_hash'");
+
+                       if ($force_auth && defined('_DEBUG_USER_SWITCH')) {
+                               $query = "SELECT id,login,access_level
+                   FROM ttrss_users WHERE
+                        login = '$login'";
+                       } else {
+                               $query = "SELECT id,login,access_level
+                   FROM ttrss_users WHERE
+                        login = '$login' AND pwd_hash = '$pwd_hash'";
+                       }
+
+                       $result = db_query($link, $query);
        
                        if (db_num_rows($result) == 1) {
                                $_SESSION["uid"] = db_fetch_result($result, 0, "id");
        function login_sequence($link) {
                if (!SINGLE_USER_MODE) {
 
+                       if (defined('_DEBUG_USER_SWITCH') && $_SESSION["uid"]) {
+                               $swu = db_escape_string($_REQUEST["swu"]);
+                               if ($swu) {
+                                       $_SESSION["prefs_cache"] = false;
+                                       return authenticate_user($link, $swu, null, true);
+                               }
+                       }
+
                        if (!validate_session($link)) {
                                logout_user();
                                $redirect_uri = get_login_redirect();
 
        function sanity_check($link) {
 
+               error_reporting(0);
+
                $error_code = 0;
                $result = db_query($link, "SELECT schema_version FROM ttrss_version");
                $schema_version = db_fetch_result($result, 0, "schema_version");
                        $error_code = 5;
                }
 
+               if (DB_TYPE == "mysql") {
+                       $result = db_query($link, "SELECT true", false);
+                       if (db_num_rows($result) != 1) {
+                               $error_code = 10;
+                       }
+               }
+
+               error_reporting (DEFAULT_ERROR_LEVEL);
+
                if ($error_code != 0) {
-                       print_error_xml(5);
+                       print_error_xml($error_code);
                        return false;
                } else {
                        return true;
                        }
        }
 
-       function getAllCounters($link) {
-               getLabelCounters($link);
+       function getAllCounters($link, $omode = "tflc") {
+/*             getLabelCounters($link);
                getFeedCounters($link);
                getTagCounters($link);
                getGlobalCounters($link);
                if (get_pref($link, 'ENABLE_FEED_CATS')) {
                        getCategoryCounters($link);
+               } */
+
+               if (!$omode) $omode = "tflc";
+
+               getGlobalCounters($link);
+
+               if (strchr($omode, "l")) getLabelCounters($link);
+               if (strchr($omode, "f")) getFeedCounters($link);
+               if (strchr($omode, "t")) getTagCounters($link);
+               if (strchr($omode, "c")) {                      
+                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                               getCategoryCounters($link);
+                       }
                }
        }       
 
                                FROM ttrss_user_entries WHERE feed_id = ttrss_feeds.id 
                                        AND unread = true)) AS unread FROM ttrss_feeds 
                        WHERE 
-                               owner_uid = ".$_SESSION["uid"]." GROUP BY cat_id");
+                               hidden = false AND owner_uid = ".$_SESSION["uid"]." GROUP BY cat_id");
 
                while ($line = db_fetch_assoc($result)) {
                        $line["cat_id"] = sprintf("%d", $line["cat_id"]);
                }
 
                $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query 
+                               AND hidden = false
                                AND owner_uid = " . $_SESSION["uid"]);
 
                $cat_feeds = array();
                        $match_part = "marked = true";
                } else if ($n_feed > 0) {
 
-                       $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE parent_feed = '$n_feed'
+                       $result = db_query($link, "SELECT id FROM ttrss_feeds 
+                                       WHERE parent_feed = '$n_feed'
+                                       AND hidden = false
                                        AND owner_uid = " . $_SESSION["uid"]);
 
                        if (db_num_rows($result) > 0) {
                                while ($line = db_fetch_assoc($result)) {
                                        array_push($linked_feeds, "feed_id = " . $line["id"]);
                                }
+
+                               array_push($linked_feeds, "feed_id = $n_feed");
                                
                                $match_part = implode(" OR ", $linked_feeds);
 
                                $result = db_query($link, "SELECT COUNT(int_id) AS unread 
-                                       FROM ttrss_user_entries 
-                                       WHERE   unread = true AND ($match_part) AND owner_uid = " . $_SESSION["uid"]);
+                                       FROM ttrss_user_entries
+                                       WHERE   unread = true AND ($match_part) 
+                                       AND owner_uid = " . $_SESSION["uid"]);
 
                                $unread = 0;
 
                                $match_part = "feed_id = '$n_feed'";
                        }
                } else if ($feed < -10) {
+
                        $label_id = -$feed - 11;
 
                        $result = db_query($link, "SELECT sql_exp FROM ttrss_labels WHERE
                                FROM ttrss_user_entries,ttrss_feeds,ttrss_entries WHERE
                                ttrss_user_entries.feed_id = ttrss_feeds.id AND
                                ttrss_user_entries.ref_id = ttrss_entries.id AND 
+                               ttrss_feeds.hidden = false AND
                                unread = true AND ($match_part) AND ttrss_user_entries.owner_uid = " . $_SESSION["uid"]);
                                
                } else {
                }
                
                $unread = db_fetch_result($result, 0, "unread");
+
                return $unread;
        }
 
        /* FIXME this needs reworking */
 
-       function getGlobalUnread($link) {
-               $result = db_query($link, "SELECT count(id) as c_id FROM ttrss_entries,ttrss_user_entries
+       function getGlobalUnread($link, $user_id = false) {
+
+               if (!$user_id) {
+                       $user_id = $_SESSION["uid"];
+               }
+
+               $result = db_query($link, "SELECT count(ttrss_entries.id) as c_id FROM ttrss_entries,ttrss_user_entries,ttrss_feeds
                        WHERE unread = true AND 
+                       ttrss_user_entries.feed_id = ttrss_feeds.id AND
                        ttrss_user_entries.ref_id = ttrss_entries.id AND 
-                       owner_uid = " . $_SESSION["uid"]);
+                       hidden = false AND
+                       ttrss_user_entries.owner_uid = '$user_id'");
                $c_id = db_fetch_result($result, 0, "c_id");
                return $c_id;
        }
                if ($global_unread == -1) {     
                        $global_unread = getGlobalUnread($link);
                }
-               print "<counter type=\"global\" id='global-unread' counter='$global_unread'/>";
+               print "<counter type=\"global\" id='global-unread' 
+                       counter='$global_unread'/>";
+
+               $result = db_query($link, "SELECT COUNT(id) AS fn FROM 
+                       ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
+
+               $subscribed_feeds = db_fetch_result($result, 0, "fn");
+
+               print "<counter type=\"global\" id='subscribed-feeds' 
+                       counter='$subscribed_feeds'/>";
+
        }
 
        function getTagCounters($link, $smart_mode = SMART_RPC_COUNTERS) {
                $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id) 
                        FROM ttrss_user_entries WHERE int_id = post_int_id 
                                AND unread = true)) AS count FROM ttrss_tags 
-                       WHERE owner_uid = 2 GROUP BY tag_name ORDER BY tag_name");
+                       WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name ORDER BY tag_name");
                        
                $tags = array();
 
 
                        $tmp_result = db_query($link, "SELECT count(ttrss_entries.id) as count FROM ttrss_user_entries,ttrss_entries,ttrss_feeds
                                WHERE (" . $line["sql_exp"] . ") AND unread = true AND 
+                               ttrss_feeds.hidden = false AND
                                ttrss_user_entries.feed_id = ttrss_feeds.id AND
                                ttrss_user_entries.ref_id = ttrss_entries.id AND 
                                ttrss_user_entries.owner_uid = ".$_SESSION["uid"]);
        }
 
        function subscribe_to_feed($link, $feed_link, $cat_id = 0) {
-       
+
+               $feed_link = trim(preg_replace("/^feed:/", "", $feed_link));
+
+               if ($feed_link == "") return;
+
                if ($cat_id == "0" || !$cat_id) {
                        $cat_qpart = "NULL";
                } else {
                print "<select id=\"$id\" name=\"$id\" $attributes>";
 
                if ($include_all_cats) {
-                       print "<option value=\"0\">Uncategorized</option>";
+                       print "<option value=\"0\">"._('Uncategorized')."</option>";
                }
 
                $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
 
        function getFeedCatTitle($link, $id) {
                if ($id == -1) {
-                       return "Special";
+                       return _("Special");
                } else if ($id < -10) {
-                       return "Labels";
+                       return _("Labels");
                } else if ($id > 0) {
                        $result = db_query($link, "SELECT ttrss_feed_categories.title 
                                FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
                        if (db_num_rows($result) == 1) {
                                return db_fetch_result($result, 0, "title");
                        } else {
-                               return "Uncategorized";
+                               return _("Uncategorized");
                        }
                } else {
                        return "getFeedCatTitle($id) failed";
 
        function getFeedTitle($link, $id) {
                if ($id == -1) {
-                       return "Starred articles";
+                       return _("Starred articles");
                } else if ($id < -10) {
                        $label_id = -10 - $id;
                        $result = db_query($link, "SELECT description FROM ttrss_labels WHERE id = '$label_id'");
                print "<param key=\"feeds_sort_by_unread\" value=\"" . 
                        sprintf("%d", get_pref($link, "FEEDS_SORT_BY_UNREAD")) . "\"/>";
 
+               print "<param key=\"confirm_feed_catchup\" value=\"" . 
+                       sprintf("%d", get_pref($link, "CONFIRM_FEED_CATCHUP")) . "\"/>";
+
                print "</init-params>";
        }
 
                return $search_query_part;
        }
 
-       function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false) {
+       function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0) {
+
                        if ($search) {
                        
                                $search_query_part = getSearchSql($search, $match_on);
                        $feed_title = "";
 
                        if ($search && $search_mode == "all_feeds") {
-                               $feed_title = "Global search results ($search)";
+                               $feed_title = _("Global search results")." ($search)";
                        } else if ($search && preg_match('/^-?[0-9][0-9]*$/', $feed) == false) {
-                               $feed_title = "Tag search results ($search, $feed)";
+                               $feed_title = _("Tag search results")." ($search, $feed)";
                        } else if (preg_match('/^-?[0-9][0-9]*$/', $feed) == false) {
                                $feed_title = $feed;
                        } else if (preg_match('/^-?[0-9][0-9]*$/', $feed) != false && $feed >= 0) {
                                                        WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
                                                $feed_title = db_fetch_result($result, 0, "title");
                                        } else {
-                                               $feed_title = "Uncategorized";
+                                               $feed_title = _("Uncategorized");
                                        }
 
                                        if ($search) {
-                                               $feed_title = "Category search results ($search, $feed_title)";
+                                               $feed_title = _("Category search results")." ($search, $feed_title)";
                                        }
 
                                } else {
                                        $last_error = db_fetch_result($result, 0, "last_error");
 
                                        if ($search) {
-                                               $feed_title = "Feed search results ($search, $feed_title)";
+                                               $feed_title = _("Feed search results") . " ($search, $feed_title)";
                                        }
                                }
        
                        } else if ($feed == -1) {
-                               $feed_title = "Starred articles";
+                               $feed_title = _("Starred articles");
                        } else if ($feed < -10) {
                                $label_id = -$feed - 11;
                                $result = db_query($link, "SELECT description FROM ttrss_labels
                                $feed_title = db_fetch_result($result, 0, "description");
 
                                if ($search) {
-                                       $feed_title = "Label search results ($search, $feed_title)";
+                                       $feed_title = _("Label search results") . " ($search, $feed_title)";
                                }
                        } else {
                                $feed_title = "?";
                                }
        
                                $content_query_part = "content as content_preview,";
-                               
+
                                $query = "SELECT 
+                                               guid,
                                                ttrss_entries.id,ttrss_entries.title,
                                                SUBSTRING(updated,1,16) as updated,
                                                unread,feed_id,marked,link,last_read,
                                                SUBSTRING(last_read,1,19) as last_read_noms,
                                                $vfeed_query_part
                                                $content_query_part
-                                               SUBSTRING(updated,1,19) as updated_noms
+                                               SUBSTRING(updated,1,19) as updated_noms,
+                                               author
                                        FROM
                                                ttrss_entries,ttrss_user_entries,ttrss_feeds
                                        WHERE
+                                       ttrss_feeds.hidden = false AND
                                        ttrss_user_entries.feed_id = ttrss_feeds.id AND
                                        ttrss_user_entries.ref_id = ttrss_entries.id AND
                                        ttrss_user_entries.owner_uid = '".$_SESSION["uid"]."' AND
                                        $search_query_part
                                        $view_query_part
                                        $query_strategy_part ORDER BY $order_by
-                                       $limit_query_part";
+                                       $limit_query_part OFFSET $offset";
                                        
                                $result = db_query($link, $query);
        
                                $feed_kind = "Tags";
        
                                $result = db_query($link, "SELECT
+                                       guid,
                                        ttrss_entries.id as id,title,
                                        SUBSTRING(updated,1,16) as updated,
                                        unread,feed_id,
                $feed_site_url = $qfh_ret[2];
                $last_error = $qfh_ret[3];
 
-               print "<rss version=\"2.0\">
-                       <channel>
-                       <title>$feed_title</title>
-                       <link>$feed_site_url</link>
-                       <generator>Tiny Tiny RSS v".VERSION."</generator>";
+               print "<rss version=\"2.0\">
+                       <channel>
+                       <title>$feed_title</title>
+                       <link>$feed_site_url</link>
+                       <generator>Tiny Tiny RSS v".VERSION."</generator>";
+               while ($line = db_fetch_assoc($result)) {
+                       print "<item>";
+                       print "<id>" . htmlspecialchars($line["guid"]) . "</id>";
+                       print "<link>" . htmlspecialchars($line["link"]) . "</link>";
+  
+                       $rfc822_date = date('r', strtotime($line["updated"]));
+  
+                       print "<pubDate>$rfc822_date</pubDate>";
+                       print "<title>" . 
+                               htmlspecialchars($line["title"]) . "</title>";
+  
+                       print "<description>" . 
+                               htmlspecialchars($line["content_preview"]) . "</description>";
+  
+                       print "</item>";
+               }
+  
+               print "</channel></rss>";
 
-               while ($line = db_fetch_assoc($result)) {
-                       print "<item>";
-                       print "<link>" . htmlspecialchars($line["link"]) . "</link>";
+       }
 
-                       $rfc822_date = date('r', strtotime($line["updated"]));
+       function getCategoryTitle($link, $cat_id) {
 
-                       print "<pubDate>$rfc822_date</pubDate>";
+               $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
+                       id = '$cat_id'");
 
-                       print "<title>" . 
-                               htmlspecialchars($line["title"]) . "</title>";
+               if (db_num_rows($result) == 1) {
+                       return db_fetch_result($result, 0, "title");
+               } else {
+                       return "Uncategorized";
+               }
+       }
+
+       function sanitize_rss($str) {
+               $res = $str;
+
+               $res = preg_replace('/<script.*?>/i', 
+                       "<p class=\"scriptWarn\">Disabled script: ", $res);
+
+               $res = preg_replace('/<\/script.*?>/i', "</p>", $res);
 
-                       print "<description>" . 
-                               htmlspecialchars($line["content_preview"]) . "</description>";
+/*             $res = preg_replace('/<embed.*?>/i', "", $res);
 
-                       print "</item>";
+               $res = preg_replace('/<object.*?>.*?<\/object>/i', 
+                       "<p class=\"objectWarn\">(Disabled html object 
+                       - flash or other embedded content)</p>", $res);  */
+
+               return $res;
+       }
+
+       function send_headlines_digests($link, $limit = 100) {
+
+               if (!DIGEST_ENABLE) return false;
+
+               $user_limit = DIGEST_EMAIL_LIMIT;
+               $days = 1;
+
+               print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
+
+               if (DB_TYPE == "pgsql") {
+                       $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
+               } else if (DB_TYPE == "mysql") {
+                       $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
                }
 
-               print "</channel></rss>";
+               $result = db_query($link, "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)) {
+                               print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
+
+                               $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
+                               $digest = $tuple[0];
+                               $headlines_count = $tuple[1];
+
+                               if ($headlines_count > 0) {
+                                       $rc = mail($line["login"] . " <" . $line["email"] . ">",
+                                               "[tt-rss] New headlines for last 24 hours", $digest,
+                                               "From: " . MAIL_FROM . "\n".
+                                               "Content-Type: text/plain; charset=\"utf-8\"\n".
+                                               "Content-Transfer-Encoding: 8bit\n");
+                                       print "RC=$rc\n";
+                                       db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW() 
+                                                       WHERE id = " . $line["id"]);
+                               } else {
+                                       print "No headlines\n";
+                               }
+                       }
+               }
+
+//             $digest = prepare_headlines_digest($link, $user_id, $days, $limit);
 
        }
 
-       function getCategoryTitle($link, $cat_id) {
+       function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
+               $tmp =  _("New headlines for last 24 hours, as of ") . date("Y/m/d H:m") . "\n";        
+               $tmp .= "=======================================================\n\n";
 
-               $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
-                       id = '$cat_id'");
+               if (DB_TYPE == "pgsql") {
+                       $interval_query = "ttrss_entries.date_entered > NOW() - INTERVAL '$days days'";
+               } else if (DB_TYPE == "mysql") {
+                       $interval_query = "ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL $days DAY)";
+               }
 
-               if (db_num_rows($result) == 1) {
-                       return db_fetch_result($result, 0, "title");
+               $result = db_query($link, "SELECT ttrss_entries.title,
+                               ttrss_feeds.title AS feed_title,
+                               date_entered,
+                               link,
+                               SUBSTRING(last_updated,1,19) AS last_updated
+                       FROM 
+                               ttrss_user_entries,ttrss_entries,ttrss_feeds 
+                       WHERE 
+                               ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id 
+                               AND include_in_digest = true
+                               AND $interval_query
+                               AND ttrss_user_entries.owner_uid = $user_id
+                               AND unread = true ORDER BY ttrss_feeds.title, date_entered DESC
+                       LIMIT $limit");
+
+               $cur_feed_title = "";
+
+               $headlines_count = db_num_rows($result);
+
+               while ($line = db_fetch_assoc($result)) {
+                       $updated = smart_date_time(strtotime($line["last_updated"]));
+                       $feed_title = $line["feed_title"];
+
+                       if ($cur_feed_title != $feed_title) {
+                               $cur_feed_title = $feed_title;
+
+                               $tmp .= "$feed_title\n\n";
+                       }
+
+                       $tmp .= " * " . trim($line["title"]) . " - $updated\n";
+                       $tmp .= "   " . trim($line["link"]) . "\n";
+                       $tmp .= "\n";
+               }
+
+               $tmp .= "--- \n";
+               $tmp .= _("You have been sent this email because you have enabled daily digests in Tiny Tiny RSS at ") . 
+                       DIGEST_HOSTNAME . "\n".
+                       _("To unsubscribe, visit your configuration options or contact instance owner.\n");
+                       
+
+               return array($tmp, $headlines_count);
+       }
+
+       function check_for_update($link) {
+               $releases_feed = "http://tt-rss.spb.ru/releases.rss";
+
+               if (!CHECK_FOR_NEW_VERSION || $_SESSION["access_level"] < 10) {
+                       return;
+               }
+
+               error_reporting(0);
+               $rss = fetch_rss($releases_feed);
+               error_reporting (DEFAULT_ERROR_LEVEL);
+
+               if ($rss) {
+
+                       $items = $rss->items;
+
+                       if (!$items || !is_array($items)) $items = $rss->entries;
+                       if (!$items || !is_array($items)) $items = $rss;
+
+                       if (!is_array($items) || count($items) == 0) {
+                               return;
+                       }                       
+
+                       $latest_item = $items[0];
+
+                       $latest_version = trim(preg_replace("/(Milestone)|(completed)/", "", $latest_item["title"]));
+
+                       $release_url = sanitize_rss($latest_item["link"]);
+                       $content = sanitize_rss($latest_item["description"]);
+
+                       if (version_compare(VERSION, $latest_version) == -1) {
+                               return "<div class=\"notice\"><a href=\"javascript:showBlockElement('milestoneDetails')\">      
+                                       New version of Tiny-Tiny RSS ($latest_version) is available (click for details)</a>
+                                       <div id=\"milestoneDetails\">$content</div></div>";
+                       }                       
+               }
+       }
+
+       function markArticlesById($link, $ids, $cmode) {
+
+               $tmp_ids = array();
+
+               foreach ($ids as $id) {
+                       array_push($tmp_ids, "ref_id = '$id'");
+               }
+
+               $ids_qpart = join(" OR ", $tmp_ids);
+
+               if ($cmode == 0) {
+                       db_query($link, "UPDATE ttrss_user_entries SET 
+                       marked = false,last_read = NOW()
+                       WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
+               } else if ($cmode == 1) {
+                       db_query($link, "UPDATE ttrss_user_entries SET 
+                       marked = true
+                       WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
                } else {
-                       return "Uncategorized";
+                       db_query($link, "UPDATE ttrss_user_entries SET 
+                       marked = NOT marked,last_read = NOW()
+                       WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
+               }
+       }
+
+       function catchupArticlesById($link, $ids, $cmode) {
+
+               $tmp_ids = array();
+
+               foreach ($ids as $id) {
+                       array_push($tmp_ids, "ref_id = '$id'");
+               }
+
+               $ids_qpart = join(" OR ", $tmp_ids);
+
+               if ($cmode == 0) {
+                       db_query($link, "UPDATE ttrss_user_entries SET 
+                       unread = false,last_read = NOW()
+                       WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
+               } else if ($cmode == 1) {
+                       db_query($link, "UPDATE ttrss_user_entries SET 
+                       unread = true
+                       WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
+               } else {
+                       db_query($link, "UPDATE ttrss_user_entries SET 
+                       unread = NOT unread,last_read = NOW()
+                       WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
+               }
+       }
+
+       function escape_for_form($s) {
+               return htmlspecialchars(db_unescape_string($s));
+       }
+
+       function make_guid_from_title($title) {
+               return preg_replace("/[ \"\',.:;]/", "-", 
+                       mb_strtolower(strip_tags($title)));
+       }
+
+       function print_headline_subtoolbar($link, $feed_site_url, $feed_title, 
+                       $bottom = false, $rtl_content = false, $feed_id = 0,
+                       $is_cat = false, $search = false, $match_on = false,
+                       $search_mode = false, $offset = 0) {
+
+                       $user_page_offset = $offset + 1;
+
+                       if (!$bottom) {
+                               $class = "headlinesSubToolbar";
+                               $tid = "headlineActionsTop";
+                       } else {
+                               $class = "headlinesSubToolbar";
+                               $tid = "headlineActionsBottom";
+                       }
+
+                       print "<table class=\"$class\" id=\"$tid\"
+                               width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"><tr>";
+
+                       if ($rtl_content) {
+                               $rtl_cpart = "RTL";
+                       } else {
+                               $rtl_cpart = "";
+                       }
+
+                       $page_prev_link = "javascript:viewFeedGoPage(-1)";
+                       $page_next_link = "javascript:viewFeedGoPage(1)";
+                       $page_first_link = "javascript:viewFeedGoPage(0)";
+
+                       $catchup_page_link = "catchupPage()";
+                       $catchup_feed_link = "catchupCurrentFeed()";
+
+                       if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
+
+                               $sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
+                               $sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
+                               $sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
+
+                               $tog_unread_link = "javascript:selectionToggleUnread()";
+                               $tog_marked_link = "javascript:selectionToggleMarked()";
+
+                       } else {
+
+                               $sel_all_link = "javascript:cdmSelectArticles('all')";
+                               $sel_unread_link = "javascript:cdmSelectArticles('unread')";
+                               $sel_none_link = "javascript:cdmSelectArticles('none')";
+
+                               $tog_unread_link = "javascript:selectionToggleUnread(true)";
+                               $tog_marked_link = "javascript:selectionToggleMarked(true)";
+
+                       }
+
+                       print "<td class=\"headlineActions$rtl_cpart\">
+                               <ul class=\"headlineDropdownMenu\">
+                               <li class=\"top2\">
+                               Select:
+                                       <a href=\"$sel_all_link\">All</a>,
+                                       <a href=\"$sel_unread_link\">Unread</a>,
+                                       <a href=\"$sel_none_link\">None</a></li>
+                               <li class=\"vsep\">&nbsp;</li>
+                               <li class=\"top\">Selection<ul>
+                                       <li onclick=\"$tog_unread_link\">Toggle Unread</li>
+                                       <li onclick=\"$tog_marked_link\">Toggle Starred</li></ul></li>
+                               <li class=\"vsep\">&nbsp;</li>
+                               <li class=\"top\">Mark as read<ul>
+                                       <li onclick=\"$catchup_page_link\">This Page</li>
+                                       <li onclick=\"$catchup_feed_link\">Entire Feed</li></ul></li>
+                               <li class=\"vsep\">&nbsp;</li>
+                               <!-- <li class=\"top2\">
+                               Page:
+                                       <a href=\"$page_prev_link\">Previous</a>,
+                                       <a href=\"$page_next_link\">Next</a></li> -->
+
+                               <li class=\"top\"><a href=\"$page_next_link\">Next Page</a><ul>
+                                       <li onclick=\"$page_prev_link\">Previous Page</li>
+                                       <li onclick=\"$page_first_link\">First Page</li></ul></li>
+                               </ul>  
+
+                               </td>"; 
+
+                       // old style subtoolbar:
+
+/*                     print "<td class=\"headlineActions$rtl_cpart\">".
+                               _('Select:')."
+                                                       <a href=\"$sel_all_link\">All</a>,
+                                                       <a href=\"$sel_unread_link\">Unread</a>,
+                                                       <a href=\"$sel_none_link\">None</a>
+                                       &nbsp;&nbsp;".
+                                       _('Toggle:')." <a href=\"$tog_unread_link\">Unread</a>,
+                                               <a href=\"$tog_marked_link\">Starred</a>
+                                       &nbsp;&nbsp;".
+                                       _('Mark as read:')."
+                                               <a href=\"#\" onclick=\"$catchup_page_link\">Page</a>,
+                                               <a href=\"#\" onclick=\"$catchup_feed_link\">Feed</a>";
+                       print "</td>";  */
+
+                       if ($search && $feed_id >= 0 && get_pref($link, 'ENABLE_LABELS') && GLOBAL_ENABLE_LABELS) {
+                               print "<td class=\"headlineActions$rtl_cpart\">
+                                       <a href=\"javascript:labelFromSearch('$search', '$search_mode',
+                                                       '$match_on', '$feed_id', '$is_cat');\">
+                                               "._('Convert to Label')."</a></td>";
+                       }
+
+                       print "<td class=\"headlineTitle$rtl_cpart\">";
+               
+                       if ($feed_site_url) {
+                               if (!$bottom) {
+                                       $target = "target=\"_blank\"";
+                               }
+                               print "<a $target href=\"$feed_site_url\">$feed_title</a>";
+                       } else {
+                               print $feed_title;
+                       }
+
+                       if ($search) {
+                               $search_q = "&q=$search&m=$match_on&smode=$search_mode";
+                       }
+
+                       if ($user_page_offset > 1) {
+                               print " [$user_page_offset] ";
+                       }
+
+                       if (!$bottom) {
+                               print "
+                                       <a target=\"_new\" 
+                                               href=\"backend.php?op=rss&id=$feed_id&is_cat=$is_cat$search_q\">
+                                               <img class=\"noborder\" 
+                                                       alt=\"Generated feed\" src=\"images/feed-icon-12x12.png\">
+                                       </a>";
+                       }
+                               
+                       print "</td>";
+                       print "</tr></table>";
+
+               }
+
+       function outputFeedList($link, $tags = false) {
+
+               print "<ul class=\"feedList\" id=\"feedList\">\n";
+
+               $owner_uid = $_SESSION["uid"];
+
+               /* virtual feeds */
+
+               if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                       print "<li class=\"feedCat\">"._('Special')."</li>";
+                       print "<li id=\"feedCatHolder\"><ul class=\"feedCatList\">";
                }
+
+               $num_starred = getFeedUnread($link, -1);
+
+               $class = "virt";
+
+               if ($num_starred > 0) $class .= "Unread";
+
+               printFeedEntry(-1, $class, _("Starred articles"), $num_starred, 
+                       "images/mark_set.png", $link);
+
+               if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                       print "</ul>\n";
+               }
+
+               if (!$tags) {
+
+                       if (GLOBAL_ENABLE_LABELS && get_pref($link, 'ENABLE_LABELS')) {
+       
+                               $result = db_query($link, "SELECT id,sql_exp,description FROM
+                                       ttrss_labels WHERE owner_uid = '$owner_uid' ORDER by description");
+               
+                               if (db_num_rows($result) > 0) {
+                                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                                               print "<li class=\"feedCat\">"._('Labels')."</li>";
+                                               print "<li id=\"feedCatHolder\"><ul class=\"feedCatList\">";
+                                       } else {
+                                               print "<li><hr></li>";
+                                       }
+                               }
+               
+                               while ($line = db_fetch_assoc($result)) {
+       
+                                       error_reporting (0);
+
+                                       $label_id = -$line['id'] - 11;
+                                       $count = getFeedUnread($link, $label_id);
+
+                                       $class = "label";
+       
+                                       if ($count > 0) {
+                                               $class .= "Unread";
+                                       }
+                                       
+                                       error_reporting (DEFAULT_ERROR_LEVEL);
+       
+                                       printFeedEntry($label_id, 
+                                               $class, db_unescape_string($line["description"]), 
+                                               $count, "images/label.png", $link);
+               
+                               }
+
+                               if (db_num_rows($result) > 0) {
+                                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                                               print "</ul>";
+                                       }
+                               }
+
+                       }
+
+                       if (!get_pref($link, 'ENABLE_FEED_CATS')) {
+                               print "<li><hr></li>";
+                       }
+
+                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                               if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
+                                       $order_by_qpart = "category,unread DESC,title";
+                               } else {
+                                       $order_by_qpart = "category,title";
+                               }
+                       } else {
+                               if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
+                                       $order_by_qpart = "unread DESC,title";
+                               } else {                
+                                       $order_by_qpart = "title";
+                               }
+                       }
+
+                       $result = db_query($link, "SELECT ttrss_feeds.*,
+                               SUBSTRING(last_updated,1,19) AS last_updated_noms,
+                               (SELECT COUNT(id) FROM ttrss_entries,ttrss_user_entries
+                                       WHERE feed_id = ttrss_feeds.id AND unread = true
+                                               AND ttrss_user_entries.ref_id = ttrss_entries.id
+                                               AND owner_uid = '$owner_uid') as unread,
+                               cat_id,last_error,
+                               ttrss_feed_categories.title AS category,
+                               ttrss_feed_categories.collapsed 
+                               FROM ttrss_feeds LEFT JOIN ttrss_feed_categories 
+                                       ON (ttrss_feed_categories.id = cat_id)                          
+                               WHERE 
+                                       ttrss_feeds.hidden = false AND
+                                       ttrss_feeds.owner_uid = '$owner_uid' AND parent_feed IS NULL
+                               ORDER BY $order_by_qpart"); 
+
+                       $actid = $_GET["actid"];
+       
+                       /* real feeds */
+       
+                       $lnum = 0;
+       
+                       $total_unread = 0;
+
+                       $category = "";
+
+                       $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
+       
+                       while ($line = db_fetch_assoc($result)) {
+                       
+                               $feed = db_unescape_string($line["title"]);
+                               $feed_id = $line["id"];   
+       
+                               $subop = $_GET["subop"];
+                               
+                               $unread = $line["unread"];
+
+                               if (get_pref($link, 'HEADLINES_SMART_DATE')) {
+                                       $last_updated = smart_date_time(strtotime($line["last_updated_noms"]));
+                               } else {
+                                       $last_updated = date($short_date, strtotime($line["last_updated_noms"]));
+                               }
+
+                               $rtl_content = sql_bool_to_bool($line["rtl_content"]);
+
+                               if ($rtl_content) {
+                                       $rtl_tag = "dir=\"RTL\"";
+                               } else {
+                                       $rtl_tag = "";
+                               }
+
+                               $tmp_result = db_query($link,
+                                       "SELECT id,COUNT(unread) AS unread
+                                       FROM ttrss_feeds LEFT JOIN ttrss_user_entries 
+                                               ON (ttrss_feeds.id = ttrss_user_entries.feed_id) 
+                                       WHERE parent_feed = '$feed_id' AND unread = true 
+                                       GROUP BY ttrss_feeds.id");
+                       
+                               if (db_num_rows($tmp_result) > 0) {                             
+                                       while ($l = db_fetch_assoc($tmp_result)) {
+                                               $unread += $l["unread"];
+                                       }
+                               }
+
+                               $cat_id = $line["cat_id"];
+
+                               $tmp_category = $line["category"];
+
+                               if (!$tmp_category) {
+                                       $tmp_category = _("Uncategorized");
+                               }
+                               
+       //                      $class = ($lnum % 2) ? "even" : "odd";
+
+                               if ($line["last_error"]) {
+                                       $class = "error";
+                               } else {
+                                       $class = "feed";
+                               }
+       
+                               if ($unread > 0) $class .= "Unread";
+       
+                               if ($actid == $feed_id) {
+                                       $class .= "Selected";
+                               }
+       
+                               $total_unread += $unread;
+
+                               if ($category != $tmp_category && get_pref($link, 'ENABLE_FEED_CATS')) {
+                               
+                                       if ($category) {
+                                               print "</ul></li>";
+                                       }
+                               
+                                       $category = $tmp_category;
+
+                                       $collapsed = $line["collapsed"];
+
+                                       // workaround for NULL category
+                                       if ($category == _("Uncategorized")) {
+                                               if ($_COOKIE["ttrss_vf_uclps"] == 1) {
+                                                       $collapsed = "t";
+                                               }
+                                       }
+
+                                       if ($collapsed == "t" || $collapsed == "1") {
+                                               $holder_class = "invisible";
+                                               $ellipsis = "...";
+                                       } else {
+                                               $holder_class = "";
+                                               $ellipsis = "";
+                                       }
+
+                                       $cat_id = sprintf("%d", $cat_id);
+
+                                       $cat_unread = getCategoryUnread($link, $cat_id);
+
+                                       $catctr_class = ($cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
+
+                                       print "<li class=\"feedCat\" id=\"FCAT-$cat_id\">
+                                               <a id=\"FCATN-$cat_id\" href=\"#\"onclick=\"javascript:toggleCollapseCat($cat_id)\">$tmp_category</a>
+                                                       <a href=\"#\" onclick=\"javascript:viewCategory($cat_id)\" id=\"FCAP-$cat_id\">
+                                                       <span id=\"FCATCTR-$cat_id\" title=\"Click to browse category\" 
+                                                       class=\"$catctr_class\">($cat_unread)</span> $ellipsis
+                                                       </a></li>";
+
+                                       // !!! NO SPACE before <ul...feedCatList - breaks firstChild DOM function
+                                       // -> keyboard navigation, etc.
+                                       print "<li id=\"feedCatHolder\" class=\"$holder_class\"><ul class=\"feedCatList\" id=\"FCATLIST-$cat_id\">";
+                               }
+       
+                               printFeedEntry($feed_id, $class, $feed, $unread, 
+                                       "icons/$feed_id.ico", $link, $rtl_content, 
+                                       $last_updated, $line["last_error"]);
+       
+                               ++$lnum;
+                       }
+
+                       if (db_num_rows($result) == 0) {
+                               print "<li>"._('No feeds to display.')."</li>";
+                       }
+
+               } else {
+
+                       // tags
+
+/*                     $result = db_query($link, "SELECT tag_name,count(ttrss_entries.id) AS count
+                               FROM ttrss_tags,ttrss_entries,ttrss_user_entries WHERE
+                               post_int_id = ttrss_user_entries.int_id AND 
+                               unread = true AND ref_id = ttrss_entries.id
+                               AND ttrss_tags.owner_uid = '$owner_uid' GROUP BY tag_name       
+                       UNION
+                               select tag_name,0 as count FROM ttrss_tags WHERE owner_uid = '$owner_uid'
+                       ORDER BY tag_name"); */
+
+                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                               print "<li class=\"feedCat\">"._('Tags')."</li>";
+                               print "<li id=\"feedCatHolder\"><ul class=\"feedCatList\">";
+                       }
+
+                       $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id) 
+                               FROM ttrss_user_entries WHERE int_id = post_int_id 
+                                       AND unread = true)) AS count FROM ttrss_tags 
+                               WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name ORDER BY tag_name");
+
+                       $tags = array();
+       
+                       while ($line = db_fetch_assoc($result)) {
+                               $tags[$line["tag_name"]] += $line["count"];
+                       }
+       
+                       foreach (array_keys($tags) as $tag) {
+       
+                               $unread = $tags[$tag];
+       
+                               $class = "tag";
+       
+                               if ($unread > 0) {
+                                       $class .= "Unread";
+                               }
+       
+                               printFeedEntry($tag, $class, $tag, $unread, "images/tag.png", $link);
+       
+                       } 
+
+                       if (db_num_rows($result) == 0) {
+                               print "<li>No tags to display.</li>";
+                       }
+
+                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                               print "</ul>\n";
+                       }
+
+               }
+
+               print "</ul>";
+
+       }
+
+       function get_article_tags($link, $id) {
+
+               $a_id = db_escape_string($id);
+
+               $tmp_result = db_query($link, "SELECT DISTINCT tag_name FROM
+                       ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
+                               ref_id = '$a_id' AND owner_uid = '".$_SESSION["uid"]."') ORDER BY tag_name");
+
+               $tags = array();        
+       
+               while ($tmp_line = db_fetch_assoc($tmp_result)) {
+                       array_push($tags, $tmp_line["tag_name"]);                               
+               }
+
+               return $tags;
+       }
+
+       function trim_value(&$value) {
+               $value = trim($value);
+       }       
+
+       function trim_array($array) {
+               $tmp = $array;
+               array_walk($tmp, 'trim_value');
+               return $tmp;
+       }
+
+       function tag_is_valid($tag) {
+               return ($tag !='' && !preg_match("/^[0-9]*$/", $tag));
        }
 
 ?>