]> git.wh0rd.org - tt-rss.git/blobdiff - backend.php
misc interface cleanups, only allow daemon to start when ENABLE_UPDATE_DAEMON is...
[tt-rss.git] / backend.php
index cf9c5d86021493a7606827cc62cf337ac27ea039..d1ff69142ee71fecc1f332a0a14f14cb3625ed8b 100644 (file)
@@ -1,6 +1,6 @@
 <?
        session_start();
-
+       
        if ($_GET["debug"]) {
                define('DEFAULT_ERROR_LEVEL', E_ALL);
        } else {
@@ -28,7 +28,7 @@
                exit;
        }
 
-       define('SCHEMA_VERSION', 2);
+       define('SCHEMA_VERSION', 5);
 
        require_once "sanity_check.php";
        require_once "config.php";
                pg_query("set client_encoding = 'utf-8'");
        }
 
+       if ($_SESSION["uid"]) {
+               if (get_pref($link, "HIDE_READ_FEEDS") == "true") {
+                       setcookie("ttrss_vf_hreadf", 1);
+               } else {
+                       setcookie("ttrss_vf_hreadf", 0);
+               }  
+
+               setcookie('ttrss_vf_refresh', FEEDS_FRAME_REFRESH);
+               setcookie('ttrss_vf_daemon', ENABLE_UPDATE_DAEMON);
+       }
+
        $fetch = $_GET["fetch"];
 
        setcookie("ttrss_icons_url", ICONS_URL);
 
+       if (!sanity_check($link)) { return; }
+
        function getAllCounters($link) {
                getLabelCounters($link);
                getFeedCounters($link);
@@ -71,7 +84,8 @@
                $result = db_query($link, "SELECT cat_id,SUM((SELECT COUNT(int_id) 
                                FROM ttrss_user_entries WHERE feed_id = ttrss_feeds.id 
                                        AND unread = true)) AS unread FROM ttrss_feeds 
-                       WHERE owner_uid = ".$_SESSION["uid"]." GROUP BY cat_id");
+                       WHERE 
+                               owner_uid = ".$_SESSION["uid"]." GROUP BY cat_id");
 
                while ($line = db_fetch_assoc($result)) {
                        $line["cat_id"] = sprintf("%d", $line["cat_id"]);
                }
        }
 
-       function getFeedCounter($link, $id) {
+/*     function getFeedCounter($link, $id) {
        
                $result = db_query($link, "SELECT 
                                count(id) as count,last_error
                        $last_error = htmlspecialchars(db_fetch_result($result, 0, "last_error"));
                        
                        print "<counter type=\"feed\" id=\"$id\" counter=\"$count\" error=\"$last_error\"/>";           
-       }
+       } */
 
        function getFeedCounters($link, $smart_mode = SMART_RPC_COUNTERS) {
 
 
                $old_counters = $_SESSION["fctr_last_value"];
 
-               $result = db_query($link, "SELECT id,last_error,
+               $result = db_query($link, "SELECT id,last_error,parent_feed,
                        (SELECT count(id) 
                                FROM ttrss_entries,ttrss_user_entries 
                                WHERE feed_id = ttrss_feeds.id AND 
                                        ttrss_user_entries.ref_id = ttrss_entries.id
                                AND unread = true AND owner_uid = ".$_SESSION["uid"].") as count
-                       FROM ttrss_feeds WHERE owner_uid = ".$_SESSION["uid"]);
+                       FROM ttrss_feeds WHERE owner_uid = ".$_SESSION["uid"] . "
+                               AND parent_feed IS NULL");
 
                $fctrs_modified = false;
 
                
                        $id = $line["id"];
                        $count = $line["count"];
-                       $last_error = htmlspecialchars($line["last_error"]);    
-
+                       $last_error = htmlspecialchars($line["last_error"]);
+       
                        $has_img = is_file(ICONS_DIR . "/$id.ico");
 
+                       $tmp_result = db_query($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 = '$id' AND unread = true GROUP BY ttrss_feeds.id");
+                       
+                       if (db_num_rows($tmp_result) > 0) {                             
+                               while ($l = db_fetch_assoc($tmp_result)) {
+                                       $count += $l["unread"];
+                               }
+                       }
+
                        if (!$smart_mode || $old_counters[$id] != $count) {
                                $old_counters[$id] = $count;
                                $fctrs_modified = true;
                print "<script type=\"text/javascript\" src=\"functions.js\"></script>
                        <script type=\"text/javascript\" src=\"feedlist.js\"></script>
                        <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
+                       <!--[if gte IE 5.5000]>
+                       <script type=\"text/javascript\" src=\"pngfix.js\"></script>
+                       <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss-ie.css\">
+                       <![endif]-->
                        </head><body onload=\"init()\">";
 
                print "<ul class=\"feedList\" id=\"feedList\">";
                                $order_by_qpart = "title";
                        }
 
-                       $result = db_query($link, "SELECT *,
-                               (SELECT count(id) FROM ttrss_entries,ttrss_user_entries
+                       $result = db_query($link, "SELECT ttrss_feeds.*,
+                               (SELECT COUNT(id) FROM ttrss_entries,ttrss_user_entries
                                        WHERE feed_id = ttrss_feeds.id AND 
                                        ttrss_user_entries.ref_id = ttrss_entries.id AND
                                        owner_uid = '$owner_uid') AS total,
-                               (SELECT count(id) FROM ttrss_entries,ttrss_user_entries
+                               (SELECT COUNT(id) FROM ttrss_entries,ttrss_user_entries
                                        WHERE feed_id = ttrss_feeds.id AND unread = true
                                                AND ttrss_user_entries.ref_id = ttrss_entries.id
                                                AND owner_uid = '$owner_uid') as unread,
-                               (SELECT title FROM ttrss_feed_categories 
-                                       WHERE id = cat_id) AS category,
                                cat_id,last_error,
-                               (SELECT collapsed FROM ttrss_feed_categories
-                                       WHERE id = cat_id) AS collapsed
-                               FROM ttrss_feeds WHERE owner_uid = '$owner_uid' ORDER BY $order_by_qpart");                     
-       
+                               ttrss_feed_categories.title AS category,
+                               ttrss_feed_categories.collapsed 
+                               FROM ttrss_feeds LEFT JOIN ttrss_feed_categories 
+                                       ON (ttrss_feed_categories.id = cat_id)                          
+                               WHERE 
+                                       ttrss_feeds.owner_uid = '$owner_uid' AND parent_feed IS NULL
+                               ORDER BY $order_by_qpart"); 
+
                        $actid = $_GET["actid"];
        
                        /* real feeds */
                                $total = $line["total"];
                                $unread = $line["unread"];
 
+                               $tmp_result = db_query($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"];
 
                                        // !!! NO SPACE before <ul...feedCatList - breaks firstChild DOM function
                                        // -> keyboard navigation, etc.
-                                       print "<li id=\"feedCatHolder\" class=\"$holder_class\"><ul class=\"feedCatList\">";
+                                       print "<li id=\"feedCatHolder\" class=\"$holder_class\"><ul class=\"feedCatList\" id=\"FCATLIST-$cat_id\">";
                                }
        
                                printFeedEntry($feed_id, $class, $feed, $unread, 
 
                $subop = $_GET["subop"];
 
+               if ($subop == "setpref") {
+                       if (WEB_DEMO_MODE) {
+                               return;
+                       }
+
+                       print "<rpc-reply>";
+
+                       $key = db_escape_string($_GET["key"]);
+                       $value = db_escape_string($_GET["value"]);
+
+                       set_pref($link, $key, $value);
+
+                       print "<param-set key=\"$key\" value=\"$value\"/>";
+
+                       print "</rpc-reply>";
+
+               }
+
                if ($subop == "getLabelCounters") {
                        $aid = $_GET["aid"];            
                        print "<rpc-reply>";
                }
 
                if ($subop == "forceUpdateAllFeeds" || $subop == "updateAllFeeds") {
-               
-                       update_all_feeds($link, $subop == "forceUpdateAllFeeds");                       
+       
+                       if (ENABLE_UPDATE_DAEMON) {
+
+                               if ($subop == "forceUpdateAllFeeds") {                          
+
+                                       $result = db_query($link, "SELECT count(id) AS cid FROM
+                                               ttrss_scheduled_updates WHERE feed_id IS NULL AND
+                                                       owner_uid = " . $_SESSION["uid"]);
+       
+                                       $cid = db_fetch_result($result, 0, "cid");
+       
+#                                      print "<rpc-reply>";
+       
+                                       if ($cid == 0) {
+       
+                                               db_query($link, "INSERT INTO ttrss_scheduled_updates
+                                                       (owner_uid, feed_id, entered) VALUES
+                                                       (".$_SESSION["uid"].", NULL, NOW())");
+                                                       
+//                                             print "<!-- ScheduledOK -->";
+                                               
+                                       } else {
+//                                             print "<!-- RequestAlreadyInQueue -->";
+                                       }
+       
+#                                      print "</rpc-reply>";
+                               }
+                               
+                       } else {        
+                               update_all_feeds($link, $subop == "forceUpdateAllFeeds");
+                       }
 
                        $omode = $_GET["omode"];
 
                        }
                        getGlobalCounters($link);
                        print "</rpc-reply>";
+
                }
        
                /* GET["cmode"] = 0 - mark as read, 1 - as unread, 2 - toggle */
                }
 
                if ($subop == "sanityCheck") {
-
-                       $error_code = 0;
-
-                       $result = db_query($link, "SELECT schema_version FROM ttrss_version");
-
-                       $schema_version = db_fetch_result($result, 0, "schema_version");
-
-                       if ($schema_version != SCHEMA_VERSION) {
-                               $error_code = 5;
+                       if (sanity_check($link)) {
+                               print "<error error-code=\"0\"/>";
                        }
-
-                       print "<error error-code='$error_code'/>";
                }
 
                if ($subop == "globalPurge") {
                        print "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">  
                                <script type=\"text/javascript\" src=\"functions.js\"></script>
                                <script type=\"text/javascript\" src=\"viewfeed.js\"></script>
+                               <!--[if gte IE 5.5000]>
+                               <script type=\"text/javascript\" src=\"pngfix.js\"></script>
+                               <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss-ie.css\">
+                               <![endif]-->
                                </head><body onload='init()'>";
                }
 
                if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
 
-                       $tmp_result = db_query($link, "SELECT feed_url FROM ttrss_feeds
-                               WHERE id = '$feed'");
+/*                     if (ENABLE_UPDATE_DAEMON) {
 
-                       $feed_url = db_fetch_result($tmp_result, 0, "feed_url");
+                               if ($cid == 0) {
 
-                       update_rss_feed($link, $feed_url, $feed);
+                                       db_query($link, "INSERT INTO ttrss_scheduled_updates
+                                               (owner_uid, feed_id, entered) VALUES
+                                               (".$_SESSION["uid"].", '$feed', NOW())");
+                               }
 
+                       } else { 
+                               // fixme update_rss_feed...
+                       } */
+
+                       $tmp_result = db_query($link, "SELECT feed_url FROM ttrss_feeds
+                               WHERE id = '$feed'");
+                       $feed_url = db_fetch_result($tmp_result, 0, "feed_url");                                
+                       update_rss_feed($link, $feed_url, $feed, ENABLE_UPDATE_DAEMON);
                }
 
                if ($subop == "MarkAllRead")  {
                        if (sprintf("%d", $feed) != 0) {
                        
                                if ($feed > 0) {
-                                       db_query($link, "UPDATE ttrss_user_entries 
-                                               SET unread = false,last_read = NOW() 
-                                               WHERE feed_id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
+
+                                       $tmp_result = db_query($link, "SELECT id 
+                                               FROM ttrss_feeds WHERE parent_feed = '$feed'
+                                               ORDER BY cat_id,title");
+
+                                       $parent_ids = array();
+
+                                       if (db_num_rows($tmp_result) > 0) {
+                                               while ($p = db_fetch_assoc($tmp_result)) {
+                                                       array_push($parent_ids, "feed_id = " . $p["id"]);
+                                               }
+
+                                               $children_qpart = implode(" OR ", $parent_ids);
+                                               
+                                               db_query($link, "UPDATE ttrss_user_entries 
+                                                       SET unread = false,last_read = NOW() 
+                                                       WHERE (feed_id = '$feed' OR $children_qpart) 
+                                                       AND owner_uid = " . $_SESSION["uid"]);
+
+                                       } else {                                                
+                                               db_query($link, "UPDATE ttrss_user_entries 
+                                                       SET unread = false,last_read = NOW() 
+                                                       WHERE feed_id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
+                                       }
                                                
                                } else if ($feed < 0 && $feed > -10) { // special, like starred
 
                $search_mode = db_escape_string($_GET["smode"]);
 
                if ($search) {
-                       $search_query_part = "(upper(title) LIKE upper('%$search%') 
-                               OR content LIKE '%$search%') AND";
+                       $search_query_part = "(upper(ttrss_entries.title) LIKE upper('%$search%') 
+                               OR ttrss_entries.content LIKE '%$search%') AND";
                } else {
                        $search_query_part = "";
                }
                $view_query_part = "";
 
                if ($view_mode == "Adaptive") {
-                       if ($feed != -1) {
+                       if ($search) {
+                               $view_query_part = " ";
+                       } else if ($feed != -1) {
                                $unread = getFeedUnread($link, $feed);
                                if ($unread > 0) {
                                        $view_query_part = " unread = true AND ";
                        $view_query_part = " unread = true AND ";
                }
 
-/*             if ($view_mode == "Unread or Starred") {
-                       $view_query_part = " (unread = true OR marked = true) AND ";
-               }
-
-               if ($view_mode == "Unread or Updated") {
-                       $view_query_part = " (unread = true OR last_read is NULL) AND ";
-               } */
-
-/*             $result = db_query($link, "SELECT count(id) AS total_entries 
-                       FROM ttrss_entries WHERE 
-                       $search_query_part
-                       feed_id = '$feed'");
-
-               $total_entries = db_fetch_result($result, 0, "total_entries"); */
-
-/*             $result = db_query("SELECT count(id) AS unread_entries 
-                       FROM ttrss_entries WHERE 
-                       $search_query_part
-                       unread = true AND
-                       feed_id = '$feed'");
-
-               $unread_entries = db_fetch_result($result, 0, "unread_entries"); */
-
                if ($limit && $limit != "All") {
                        $limit_query_part = "LIMIT " . $limit;
                } 
 
                // override query strategy and enable feed display when searching globally
                if ($search && $search_mode == "All feeds") {
-                       $query_strategy_part = "id > 0";
-                       $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
-                               id = feed_id) as feed_title,";
+                       $query_strategy_part = "ttrss_entries.id > 0";
+                       $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
                } else if (sprintf("%d", $feed) == 0) {
                        $query_strategy_part = "ttrss_entries.id > 0";
                        $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
                                id = feed_id) as feed_title,";
                } else if ($feed >= 0) {
-                       $query_strategy_part = "feed_id = '$feed'";
+               
+                       $tmp_result = db_query($link, "SELECT id 
+                               FROM ttrss_feeds WHERE parent_feed = '$feed'
+                               ORDER BY cat_id,title");
+
+                       $parent_ids = array();
+
+                       if (db_num_rows($tmp_result) > 0) {
+                               while ($p = db_fetch_assoc($tmp_result)) {
+                                       array_push($parent_ids, "feed_id = " . $p["id"]);
+                               }
+
+                               $query_strategy_part = sprintf("(feed_id = %d OR %s)", 
+                                       $feed, implode(" OR ", $parent_ids));
+       
+                               $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
+                       } else {
+                               $query_strategy_part = "feed_id = '$feed'";
+                       }
                } else if ($feed == -1) { // starred virtual feed
                        $query_strategy_part = "marked = true";
-                       $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
-                               id = feed_id) as feed_title,";
+                       $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
                } else if ($feed <= -10) { // labels
                        $label_id = -$feed - 11;
 
                
                        $query_strategy_part = db_fetch_result($tmp_result, 0, "sql_exp");
        
-                       $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
-                               id = feed_id) as feed_title,";
+                       $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
                } else {
                        $query_strategy_part = "id > 0"; // dumb
                }
                $feed_title = "";
 
                if ($search && $search_mode == "All feeds") {
-                       $feed_title = "Search results";
-               } else if (sprintf("%d", $feed) == 0) {
-                       $feed_title = $feed;
+                       $feed_title = "Global search results ($search)";
+               } else if ($search && sprintf("%d", $feed) == 0) {
+                       $feed_title = "Feed search results ($search, $feed)";
                } else if ($feed > 0) {
                        $result = db_query($link, "SELECT title,site_url,last_error FROM ttrss_feeds 
                                WHERE id = '$feed'");
 //                     }
 
                        $result = db_query($link, "SELECT 
-                                       id,title,
+                                       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,
                                        $content_query_part
                                        SUBSTRING(updated,1,19) as updated_noms
                                FROM
-                                       ttrss_entries,ttrss_user_entries
+                                       ttrss_entries,ttrss_user_entries,ttrss_feeds
                                WHERE
+                               ttrss_user_entries.feed_id = ttrss_feeds.id AND
                                ttrss_user_entries.ref_id = ttrss_entries.id AND
-                               owner_uid = '".$_SESSION["uid"]."' AND
+                               ttrss_user_entries.owner_uid = '".$_SESSION["uid"]."' AND
                                $search_query_part
                                $view_query_part
                                $query_strategy_part ORDER BY $order_by
                                print "<td class=\"headlineActions\">
                                        Select: 
                                                                <a href=\"javascript:selectTableRowsByIdPrefix('headlinesList', 
-                                                                       'RROW-', 'RCHK-', true)\">All</a>,
+                                                                       'RROW-', 'RCHK-', true, '', true)\">All</a>,
                                                                <a href=\"javascript:selectTableRowsByIdPrefix('headlinesList', 
-                                                                       'RROW-', 'RCHK-', true, 'Unread')\">Unread</a>,
+                                                                       'RROW-', 'RCHK-', true, 'Unread', true)\">Unread</a>,
                                                                <a href=\"javascript:selectTableRowsByIdPrefix('headlinesList', 
                                                                        'RROW-', 'RCHK-', false)\">None</a>
                                                &nbsp;&nbsp;
 
                                if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
                                        $content_preview = truncate_string(strip_tags($line["content_preview"]), 
-                                               200);
+                                               100);
                                }
 
                                if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
                                        if ($line["feed_title"]) {                      
                                                print "<td class='hlContent'>$content_link</td>";
                                                print "<td class='hlFeed'>
-                                                       <a href='javascript:viewfeed($feed_id)'>".$line["feed_title"]."</a>&nbsp;</td>";
+                                                       <a href='javascript:viewfeed($feed_id)'>".
+                                                               $line["feed_title"]."</a>&nbsp;</td>";
                                        } else {                        
                                                print "<td class='hlContent' valign='middle'>";
                
 
                                        print "<div style=\"float : right\">$updated_fmt</div>";
                                        
-                                       print "<a href=\"".$line["link"]."\">".$line["title"]."</a>";
+                                       print "<a target=\"new\" href=\"".$line["link"]."\">".$line["title"]."</a>";
 
                                        if ($line["feed_title"]) {      
                                                print "&nbsp;(<a href='javascript:viewfeed($feed_id)'>".$line["feed_title"]."</a>)";
                $subop = $_REQUEST["subop"];
                $quiet = $_REQUEST["quiet"];
 
+               if ($subop == "massSubscribe") {
+                       $ids = split(",", db_escape_string($_GET["ids"]));
+
+                       $subscribed = array();
+
+                       foreach ($ids as $id) {
+                               $result = db_query($link, "SELECT feed_url,title FROM ttrss_feeds
+                                       WHERE id = '$id'");
+
+                               $feed_url = db_fetch_result($result, 0, "feed_url");
+                               $title = db_fetch_result($result, 0, "title");
+
+                               $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE
+                                       feed_url = '$feed_url' AND owner_uid = " . $_SESSION["uid"]);
+
+                               if (db_num_rows($result) == 0) {                        
+                                       $result = db_query($link,
+                                               "INSERT INTO ttrss_feeds (owner_uid,feed_url,title,cat_id) 
+                                               VALUES ('".$_SESSION["uid"]."', '$feed_url', '$title', NULL)");
+
+                                       array_push($subscribed, $title);
+                               }
+                       }
+
+                       if (count($subscribed) > 0) {
+                               print "<div class=\"notice\">";
+                               print "<b>Subscribed to feeds:</b>";
+                               print "<ul class=\"nomarks\">";
+                               foreach ($subscribed as $title) {
+                                       print "<li>$title</li>";
+                               }
+                               print "</ul>";
+                               print "</div>";
+                       }
+               }               
+
+               if ($subop == "browse") {
+
+                       if (!ENABLE_FEED_BROWSER) {
+                               print "Feed browser is administratively disabled.";
+                               return;
+                       }
+                       
+                       print "<div class=\"infoBoxContents\">";
+
+                       print "<h1>Feed browser</h1>";
+
+                       print "<p>Showing top 50 registered feeds, sorted by popularity:</p>";
+
+                       $result = db_query($link, "SELECT feed_url,count(id) AS subscribers 
+                               FROM ttrss_feeds 
+                               WHERE auth_login = '' AND auth_pass = '' AND private = false
+                               GROUP BY feed_url ORDER BY subscribers DESC LIMIT 50");
+                       
+                       print "<ul class='browseFeedList' id='browseFeedList'>";
+
+                       $feedctr = 0;
+                       
+                       while ($line = db_fetch_assoc($result)) {
+                               $feed_url = $line["feed_url"];
+                               $subscribers = $line["subscribers"];
+
+                               $sub_result = db_query($link, "SELECT id
+                                       FROM ttrss_feeds WHERE feed_url = '$feed_url' AND owner_uid =" . 
+                                       $_SESSION["uid"]);
+
+                               if (db_num_rows($sub_result) > 0) {
+                                       continue; // already subscribed
+                               }
+                       
+                               $det_result = db_query($link, "SELECT site_url,title,id 
+                                       FROM ttrss_feeds WHERE feed_url = '$feed_url' LIMIT 1");
+
+                               $details = db_fetch_assoc($det_result);
+                       
+                               $icon_file = ICONS_DIR . "/" . $details["id"] . ".ico";
+
+                               if (file_exists($icon_file) && filesize($icon_file) > 0) {
+                                               $feed_icon = "<img class=\"tinyFeedIcon\"       src=\"" . ICONS_URL . 
+                                                       "/".$details["id"].".ico\">";
+                               } else {
+                                       $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
+                               }
+
+                               $check_box = "<input onclick='toggleSelectListRow(this)' class='feedBrowseCB' 
+                                       type=\"checkbox\" id=\"FBCHK-" . $details["id"] . "\">";
+
+                               $class = ($feedctr % 2) ? "even" : "odd";
+
+                               print "<li class='$class' id=\"FBROW-".$details["id"]."\">$check_box".
+                                       "$feed_icon " . db_unescape_string($details["title"]) . 
+                                       "&nbsp;<span class='subscribers'>($subscribers)</span></li>";
+
+                                       ++$feedctr;
+                       }
+
+                       if ($feedctr == 0) {
+                               print "<li>No feeds found to subscribe.</li>";
+                       }
+
+                       print "</ul>";
+
+                       print "<div align='center'>
+                               <input type=\"submit\" class=\"button\" 
+                               onclick=\"feedBrowserSubscribe()\" value=\"Subscribe\">
+                               <input type='submit' class='button'                     
+                               onclick=\"closeInfoBox()\" value=\"Cancel\"></div>";
+
+                       print "</div>";
+                       return;
+               }
+
                if ($subop == "editfeed") {
                        $feed_id = db_escape_string($_GET["id"]);
 
                        print "<td><input id=\"iedit_updintl\" 
                                value=\"$update_interval\"></td></tr>";
 
+                       $row_class = toggleEvenOdd($row_class);
+                       print "<tr class='$row_class'><td>Link to:</td>";
+
+                       $tmp_result = db_query($link, "SELECT COUNT(id) AS count
+                               FROM ttrss_feeds WHERE parent_feed = '$feed_id'");
+
+                       $linked_count = db_fetch_result($tmp_result, 0, "count");
+
+                       $parent_feed = db_fetch_result($result, 0, "parent_feed");
+
+                       if ($linked_count > 0) {
+                               $disabled = "disabled";
+                       }
+
+                       print "<select $disabled  id=\"iedit_parent_feed\">";
+                       
+                       print "<option id=\"0\">Not linked</option>";
+
+                       if (get_pref($link, 'ENABLE_FEED_CATS')) {
+                               if ($cat_id) {
+                                       $cat_qpart = "AND cat_id = '$cat_id'";
+                               } else {
+                                       $cat_qpart = "AND cat_id IS NULL";
+                               }
+                       }
+
+                       $tmp_result = db_query($link, "SELECT id,title FROM ttrss_feeds
+                               WHERE id != '$feed_id' AND owner_uid = ".$_SESSION["uid"]." 
+                                       $cat_qpart ORDER BY title");
+
+                               if (db_num_rows($tmp_result) > 0) {
+                                       print "<option disabled>--------</option>";
+                               }
+
+                               while ($tmp_line = db_fetch_assoc($tmp_result)) {
+                                       if ($tmp_line["id"] == $parent_feed) {
+                                               $is_selected = "selected";
+                                       } else {
+                                               $is_selected = "";
+                                       }
+                                       printf("<option $is_selected id='%d'>%s</option>", 
+                                               $tmp_line["id"], $tmp_line["title"]);
+                               }
+
+                               print "</select></td>";
+                               print "</td></tr>";
+
                        $purge_interval = db_fetch_result($result, 0, "purge_interval");
                        $row_class = toggleEvenOdd($row_class);
 
                        print "<td><input type=\"password\" id=\"iedit_pass\" 
                                value=\"$auth_pass\"></td></tr>";
 
+                       $row_class = toggleEvenOdd($row_class);
+                       $private = sql_bool_to_bool(db_fetch_result($result, 0, "private"));
+
+                       if ($private) {
+                               $checked = "checked";
+                       } else {
+                               $checked = "";
+                       }
+
+                       print "<tr class='$row_class'><td>Options:</td>";
+                       print "<td><input type=\"checkbox\" id=\"iedit_private\" 
+                               $checked><label for=\"iedit_private\">Hide from feed browser</label>
+                               </td></tr>";
+
                        print "</table>";
                        print "</div>";
 
                        print "<div align='center'>
-                               <input type='submit' class='button'                     
-                               onclick=\"feedEditCancel()\" value=\"Cancel\">
                                <input type=\"submit\" class=\"button\" 
-                               onclick=\"feedEditSave()\" value=\"Save\"></div>";
+                               onclick=\"feedEditSave()\" value=\"Save\">
+                               <input type='submit' class='button'                     
+                               onclick=\"feedEditCancel()\" value=\"Cancel\"></div>";
                        return;
                }
 
                        $cat_id = db_escape_string($_POST["catid"]);
                        $auth_login = db_escape_string($_POST["login"]);
                        $auth_pass = db_escape_string($_POST["pass"]);
+                       $parent_feed = db_escape_string($_POST["pfeed"]);
+                       $private = db_escape_string($_POST["is_pvt"]);
 
                        if (strtoupper($upd_intl) == "DEFAULT")
                                $upd_intl = 0;
                                $category_qpart = 'cat_id = NULL';
                        }
 
+                       if ($parent_feed != 0) {
+                               $parent_qpart = "parent_feed = '$parent_feed'";
+                       } else {
+                               $parent_qpart = 'parent_feed = NULL';
+                       }
+
                        $result = db_query($link, "UPDATE ttrss_feeds SET 
                                $category_qpart,
+                               $parent_qpart,
                                title = '$feed_title', feed_url = '$feed_link',
                                update_interval = '$upd_intl',
                                purge_interval = '$purge_intl',
                                auth_login = '$auth_login',
-                               auth_pass = '$auth_pass'
+                               auth_pass = '$auth_pass',
+                               private = '$private'                            
                                WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);                    
                }
 
                                $feed_link = db_escape_string(trim($_GET["link"]));
                                $cat_id = db_escape_string($_GET["cid"]);
 
-                               if ($cat_id == "0") {
+                               if ($cat_id == "0" || !$cat_id) {
                                        $cat_qpart = "NULL";
                                } else {
                                        $cat_qpart = "'$cat_id'";
                                onchange=\"javascript:addFeed()\"
                                size=\"40\">
                                <input type=\"submit\" class=\"button\"
-                               onclick=\"javascript:addFeed()\" value=\"Add feed\">
-                       </td><td align='right'>
+                               onclick=\"javascript:addFeed()\" value=\"Add feed\">";
+
+               if (ENABLE_FEED_BROWSER) {
+                       print "&nbsp;(<a href='javascript:browseFeeds()'>Top 50</a>)";
+               }
+               
+               print "</td><td align='right'>
                                <input id=\"feed_search\" size=\"20\"  
                                onchange=\"javascript:updateFeedList()\"
                                value=\"$feed_search\">
                $_SESSION["pref_sort_feeds"] = $feeds_sort;
 
                if ($feed_search) {
-                       $search_qpart = "(UPPER(title) LIKE UPPER('%$feed_search%') OR
-                               UPPER(feed_url) LIKE UPPER('%$feed_search%')) AND";
+                       $search_qpart = "(UPPER(F1.title) LIKE UPPER('%$feed_search%') OR
+                               UPPER(F1.feed_url) LIKE UPPER('%$feed_search%')) AND";
                } else {
                        $search_qpart = "";
                }
 
                $result = db_query($link, "SELECT 
-                               id,title,feed_url,substring(last_updated,1,16) as last_updated,
-                               update_interval,purge_interval,cat_id,
-                               (SELECT title FROM ttrss_feed_categories 
-                                       WHERE id = cat_id) AS category
+                               F1.id,
+                               F1.title,
+                               F1.feed_url,
+                               substring(F1.last_updated,1,16) AS last_updated,
+                               F1.parent_feed,
+                               F1.update_interval,
+                               F1.purge_interval,
+                               F1.cat_id,
+                               F2.title AS parent_title,
+                               C1.title AS category                            
                        FROM 
-                               ttrss_feeds 
+                               ttrss_feeds AS F1 
+                               LEFT JOIN ttrss_feeds AS F2
+                                       ON (F1.parent_feed = F2.id)
+                               LEFT JOIN ttrss_feed_categories AS C1
+                                       ON (F1.cat_id = C1.id)
                        WHERE 
-                               $search_qpart owner_uid = '".$_SESSION["uid"]."'                        
+                               $search_qpart F1.owner_uid = '".$_SESSION["uid"]."'                     
                        ORDER by category,$feeds_sort,title");
 
                if (db_num_rows($result) != 0) {
                                $edit_title = truncate_string($edit_title, 40);
                                $edit_link = truncate_string($edit_link, 60);
 
+                               $parent_title = $line["parent_title"];
+                               if ($parent_title) {
+                                       $parent_title = "<span class='groupPrompt'>(linked to 
+                                               $parent_title)</span>";
+                               }
+
                                print "<td><a href=\"javascript:editFeed($feed_id);\">" . 
-                                       "$feed_icon $edit_title" . "</a></td>";         
+                                       "$feed_icon $edit_title $parent_title" . "</a></td>";           
                                        
                                print "<td><a href=\"javascript:editFeed($feed_id);\">" . 
                                        $edit_link . "</a></td>";               
                                ttrss_filter_types.description AS filter_type_descr,
                                feed_id,
                                ttrss_filter_actions.description AS action_description,
-                               (SELECT title FROM ttrss_feeds WHERE id = feed_id) AS feed_title
+                               ttrss_feeds.title AS feed_title
                        FROM 
-                               ttrss_filters,ttrss_filter_types,ttrss_filter_actions
+                               ttrss_filter_types,ttrss_filter_actions,ttrss_filters LEFT JOIN
+                                       ttrss_feeds ON (ttrss_filters.feed_id = ttrss_feeds.id)
                        WHERE
                                filter_type = ttrss_filter_types.id AND
                                ttrss_filter_actions.id = action_id AND
                        print "<p>";
        
                        if ($subop == "edit") {
-                               print "Edit feed:
+                               print "Edit filter:
                                        <input type=\"submit\" class=\"button\" 
-                                               onclick=\"javascript:filterEditCancel()\" value=\"Cancel\">
+                                               onclick=\"javascript:filterEditSave()\" value=\"Save\">
                                        <input type=\"submit\" class=\"button\" 
-                                               onclick=\"javascript:filterEditSave()\" value=\"Save\">";
+                                               onclick=\"javascript:filterEditCancel()\" value=\"Cancel\">";
                                                
                        } else {
        
                                        <input type=\"submit\" class=\"button\" 
                                                onclick=\"javascript:labelTest()\" value=\"Test\">
                                        <input type=\"submit\" class=\"button\" 
-                                               onclick=\"javascript:labelEditCancel()\" value=\"Cancel\">
+                                               onclick=\"javascript:labelEditSave()\" value=\"Save\">
                                        <input type=\"submit\" class=\"button\" 
-                                               onclick=\"javascript:labelEditSave()\" value=\"Save\">";
+                                               onclick=\"javascript:labelEditCancel()\" value=\"Cancel\">";
                                                
                        } else {
        
 
                if ($id == "search") {
 
+                       $active_feed_id = db_escape_string($_GET["param"]);
+
                        print "<input id=\"searchbox\" class=\"extSearch\"                      
                        onblur=\"javascript:enableHotkeys()\" onfocus=\"javascript:disableHotkeys()\"
                        onchange=\"javascript:search()\">
                        <select id=\"searchmodebox\">
-                               <option selected>All feeds</option>
-                               <option>This feed</option>
-                       </select>               
+                               <option selected>All feeds</option>";
+                               
+                       if ($active_feed_id) {                          
+                               print "<option>This feed</option>";
+                       } else {
+                               print "<option disabled>This feed</option>";
+                       }
+                       
+                       print "</select>                
                        <input type=\"submit\" 
                                class=\"button\" onclick=\"javascript:search()\" value=\"Search\">
                        <input class=\"button\"
 
                        $_SESSION["prefs_op_result"] = "save-config";
 
+                       $_SESSION["prefs_cache"] = false;
+
                        foreach (array_keys($_POST) as $pref_name) {
                        
                                $pref_name = db_escape_string($pref_name);
                                print "Unknown option: $pref_name";
                        }
 
+               } else if ($subop == "Change e-mail") {
+
+                       if (WEB_DEMO_MODE) {
+                               header("Location: prefs.php");
+                               return;
+                       }
+
+                       $email = db_escape_string($_GET["email"]);
+                       $active_uid = $_SESSION["uid"];
+
+                       if ($email) {
+                               db_query($link, "UPDATE ttrss_users SET email = '$email' 
+                                               WHERE id = '$active_uid'");                             
+                       }
+
+                       header("Location: prefs.php");
+
                } else if ($subop == "Change password") {
 
                        if (WEB_DEMO_MODE) {
 
                        if (!SINGLE_USER_MODE) {
 
-                               $result = db_query($link, "SELECT id FROM ttrss_users
+                               $result = db_query($link, "SELECT id,email FROM ttrss_users
                                        WHERE id = ".$_SESSION["uid"]." AND (pwd_hash = 'password' OR
                                                pwd_hash = 'SHA1:".sha1("password")."')");
 
 
                                $_SESSION["prefs_op_result"] = "";
 
+                               print "<form action=\"backend.php\" method=\"GET\">";
+       
+                               print "<table width=\"100%\" class=\"prefPrefsList\">";
+                               print "<tr><td colspan='3'><h3>Personal data</h3></tr></td>";
+
+                               $result = db_query($link, "SELECT email FROM ttrss_users
+                                       WHERE id = ".$_SESSION["uid"]);
+                                       
+                               $email = db_fetch_result($result, 0, "email");
+       
+                               print "<tr><td width=\"40%\">E-mail</td>";
+                               print "<td><input class=\"editbox\" name=\"email\" 
+                                       value=\"$email\"></td></tr>";
+       
+                               print "</table>";
+       
+                               print "<input type=\"hidden\" name=\"op\" value=\"pref-prefs\">";
+       
+                               print "<p><input class=\"button\" type=\"submit\" 
+                                       value=\"Change e-mail\" name=\"subop\">";
+
+                               print "</form>";
+
                                print "<form action=\"backend.php\" method=\"POST\">";
        
                                print "<table width=\"100%\" class=\"prefPrefsList\">";
                                $tmp_user_pwd = make_password(8);
                                $pwd_hash = 'SHA1:' . sha1($tmp_user_pwd);
 
-                               db_query($link, "INSERT INTO ttrss_users (login,pwd_hash,access_level)
-                                       VALUES ('$login', '$pwd_hash', 0)");
+                               db_query($link, "INSERT INTO ttrss_users 
+                                       (login,pwd_hash,access_level,last_login)
+                                       VALUES ('$login', '$pwd_hash', 0, NOW())");
 
 
                                $result = db_query($link, "SELECT id FROM ttrss_users WHERE 
                        $uid = $line["id"];
                        $edit_uid = $_GET["id"];
 
-                       if ($uid == $_SESSION["uid"] || ($subop == "edit" && $uid != $edit_uid)) {
+                       if ($subop == "edit" && $uid != $edit_uid) {
                                $class .= "Grayed";
                                $this_row_id = "";
                        } else {
                print "<p>";
 
                if ($subop == "edit") {
-                       print "Edit label:
+                       print "Edit user:
                                <input type=\"submit\" class=\"button\" 
-                                       onclick=\"javascript:userEditCancel()\" value=\"Cancel\">
+                                       onclick=\"javascript:userEditSave()\" value=\"Save\">
                                <input type=\"submit\" class=\"button\" 
-                                       onclick=\"javascript:userEditSave()\" value=\"Save\">";
+                                       onclick=\"javascript:userEditCancel()\" value=\"Cancel\">";
                                        
                } else {
 
                print "<h1>Subscribed feeds</h1>";
 
                $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
-                       WHERE owner_uid = '$uid' ORDER BY title LIMIT 20");
+                       WHERE owner_uid = '$uid' ORDER BY title");
 
-               print "<ul class=\"nomarks\">";
+               print "<ul class=\"userFeedList\">";
 
                while ($line = db_fetch_assoc($result)) {
 
                        $site_url = db_fetch_result($result, 0, "site_url");
        
                        $result = db_query($link, "SELECT COUNT(id) AS subscribed
-                                               FROM ttrss_feeds WHERE feed_url = '$feed_url'");
+                                               FROM ttrss_feeds WHERE feed_url = '$feed_url' AND private = false");
        
                        $subscribed = db_fetch_result($result, 0, "subscribed");
        
                        onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
        }       
 
+       if ($op == "pref-feed-browser") {
+
+               if (!ENABLE_FEED_BROWSER) {
+                       print "Feed browser is administratively disabled.";
+                       return;
+               }
+
+               $subop = $_REQUEST["subop"];
+
+               if ($subop == "details") {
+                       $id = db_escape_string($_GET["id"]);
+
+                       print "<div class=\"browserFeedInfo\">";
+                       print "<b>Feed information:</b>";
+                       print "<div class=\"detailsPart\">";
+
+                       $result = db_query($link, "SELECT 
+                                       feed_url,site_url,
+                                       SUBSTRING(last_updated,1,19) AS last_updated
+                               FROM ttrss_feeds WHERE id = '$id'");
+
+                       $feed_url = db_fetch_result($result, 0, "feed_url");
+                       $site_url = db_fetch_result($result, 0, "site_url");
+                       $last_updated = db_fetch_result($result, 0, "last_updated");
+
+                       if (get_pref($link, 'HEADLINES_SMART_DATE')) {
+                               $last_updated = smart_date_time(strtotime($last_updated));
+                       } else {
+                               $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
+                               $last_updated = date($short_date, strtotime($last_updated));
+                       }
+
+                       print "Site: <a href='$site_url'>$site_url</a> ".
+                               "(<a href='$feed_url'>feed</a>), ".
+                               "Last updated: $last_updated";
+
+                       print "</div>";
+
+                       $result = db_query($link, "SELECT 
+                                       ttrss_entries.title,
+                                       content,
+                                       substring(date_entered,1,19) as date_entered,
+                                       substring(updated,1,19) as updated
+                               FROM ttrss_entries,ttrss_user_entries
+                               WHERE   ttrss_entries.id = ref_id AND feed_id = '$id' 
+                               ORDER BY updated DESC LIMIT 5");
+
+                       if (db_num_rows($result) > 0) {
+                               
+                               print "<b>Last headlines:</b><br>";
+                               
+                               print "<div class=\"detailsPart\">";
+                               print "<ul class=\"compact\">";
+                               while ($line = db_fetch_assoc($result)) {
+
+                                       if (get_pref($link, 'HEADLINES_SMART_DATE')) {
+                                               $entry_dt = smart_date_time(strtotime($line["updated"]));
+                                       } else {
+                                               $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
+                                               $entry_dt = date($short_date, strtotime($line["updated"]));
+                                       }                               
+               
+                                       print "<li>" . $line["title"] . 
+                                               "&nbsp;<span class=\"insensitive\">($entry_dt)</span></li>";    
+                               }               
+                               print "</ul></div>";
+                       }
+
+                       print "</div>";
+                               
+                       return;
+               }
+
+               $result = db_query($link, "SELECT feed_url,count(id) AS subscribers 
+                       FROM ttrss_feeds 
+                       WHERE auth_login = '' AND auth_pass = '' AND private = false
+                       GROUP BY feed_url ORDER BY subscribers DESC LIMIT 100");
+               
+               print "<ul class='nomarks' id='browseBigFeedList'>";
+
+               $feedctr = 0;
+               
+               while ($line = db_fetch_assoc($result)) {
+                       $feed_url = $line["feed_url"];
+                       $subscribers = $line["subscribers"];
+
+                       $sub_result = db_query($link, "SELECT id
+                               FROM ttrss_feeds WHERE feed_url = '$feed_url' AND owner_uid =" . 
+                               $_SESSION["uid"]);
+
+                       if (db_num_rows($sub_result) > 0) {
+                               continue; // already subscribed
+                       }
+               
+                       $det_result = db_query($link, "SELECT site_url,title,id 
+                               FROM ttrss_feeds WHERE feed_url = '$feed_url' LIMIT 1");
+
+                       $details = db_fetch_assoc($det_result);
+               
+                       $icon_file = ICONS_DIR . "/" . $details["id"] . ".ico";
+
+                       if (file_exists($icon_file) && filesize($icon_file) > 0) {
+                                       $feed_icon = "<img class=\"tinyFeedIcon\"       src=\"" . ICONS_URL . 
+                                               "/".$details["id"].".ico\">";
+                       } else {
+                               $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
+                       }
+
+                       $check_box = "<input onclick='toggleSelectListRow(this)' class='feedBrowseCB' 
+                               type=\"checkbox\" id=\"FBCHK-" . $details["id"] . "\">";
+
+                       $class = ($feedctr % 2) ? "even" : "odd";
+
+                       print "<li class='$class' id=\"FBROW-".$details["id"]."\">$check_box".
+                               "$feed_icon ";
+                               
+                       print "<a href=\"javascript:browserToggleExpand('".$details["id"]."')\">" . 
+                               $details["title"] ."</a>&nbsp;" .
+                               "<span class='subscribers'>($subscribers)</span>";
+                       
+                       print "<div class=\"browserDetails\" id=\"BRDET-" . $details["id"] . "\">";
+                       print "</div>";
+                               
+                       print "</li>";
+
+                               ++$feedctr;
+               }
+
+               if ($feedctr == 0) {
+                       print "<li>No feeds found to subscribe.</li>";
+               }
+
+               print "</ul>";
+
+               print "<p>Selection: 
+                       <input type='submit' class='button' onclick=\"feedBrowserSubscribe()\" 
+                       value=\"Subscribe\"></p>";
+
+               print "</div>";
+
+       }
+
        db_close($link);
 ?>