]> git.wh0rd.org - tt-rss.git/blobdiff - backend.php
pref-feeds/add: properly handle rc=3
[tt-rss.git] / backend.php
index 656dcbf9c2155ee4618ddd3a4755d3702886844e..6b93d1b3c5444c55079fa68e8bdc05b1ca3cc40c 100644 (file)
 <?php
-       require_once "sessions.php";
-       require_once "modules/backend-rpc.php";
-       
-       header("Cache-Control: no-cache, max-age=0, must-revalidate");
-       header("Pragma: no-cache");
-       header("Expires: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
-       
-/*     if ($_GET["debug"]) {
-               define('DEFAULT_ERROR_LEVEL', E_ALL);
-       } else {
-               define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
-       }
-       
-       error_reporting(DEFAULT_ERROR_LEVEL); */
+       /* remove ill effects of magic quotes */
 
-       define('SCHEMA_VERSION', 13);
+       if (get_magic_quotes_gpc()) {
+               function stripslashes_deep($value) {
+                       $value = is_array($value) ?
+                               array_map('stripslashes_deep', $value) : stripslashes($value);
+                               return $value;
+               }
 
+               $_POST = array_map('stripslashes_deep', $_POST);
+               $_GET = array_map('stripslashes_deep', $_GET);
+               $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
+               $_REQUEST = array_map('stripslashes_deep', $_REQUEST);
+       }
+
+       require_once "functions.php";
+       require_once "sessions.php";
+       require_once "modules/backend-rpc.php";
        require_once "sanity_check.php";
        require_once "config.php";
-       
        require_once "db.php";
        require_once "db-prefs.php";
-       require_once "functions.php";
+
+       no_cache_incantation();
+
+       startup_gettext();
 
        $script_started = getmicrotime();
 
-       $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); 
+       $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
 
        if (!$link) {
                if (DB_TYPE == "mysql") {
                        print mysql_error();
                }
-               // PG seems to display its own errors just fine by default.             
+               // PG seems to display its own errors just fine by default.
                return;
        }
 
-       if (DB_TYPE == "pgsql") {
-               pg_query("set client_encoding = 'UTF-8'");
-               pg_set_client_encoding("UNICODE");
-       }
+       init_connection($link);
 
        $op = $_REQUEST["op"];
+       $subop = $_REQUEST["subop"];
+       $mode = $_REQUEST["mode"];
 
-       $print_exec_time = false;
-
-       if ((!$op || $op == "rpc" || $op == "rss" || $op == "digestSend" ||
-                       $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
-               header("Content-Type: application/xml; charset=utf-8");
+       if ((!$op || $op == "rss" || $op == "dlg") && !$_REQUEST["noxml"]) {
+                       header("Content-Type: application/xml; charset=utf-8");
        } else {
-               header("Content-Type: text/html; charset=utf-8");
+                       header("Content-Type: text/plain; charset=utf-8");
        }
 
-       if (!$op) {
-               header("Content-Type: application/xml");
-               print_error_xml(7); exit;
+       if (ENABLE_GZIP_OUTPUT) {
+               ob_start("ob_gzhandler");
        }
 
-       if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" 
-                       && $op != "rss" && $op != "getUnread") {
-
-               if ($op == "rpc") {
-                       print_error_xml(6); die;
-               } else {
-                       print "
-                       <html><body>
-                               <p>Error: Not logged in.</p>
-                               <script type=\"text/javascript\">
-                                       if (parent.window != 'undefined') {
-                                               parent.window.location = \"tt-rss.php\";                
-                                       } else {
-                                               window.location = \"tt-rss.php\";
-                                       }
-                               </script>
-                       </body></html>
-                       ";
-               }
-               exit;
+       if (SINGLE_USER_MODE) {
+               authenticate_user($link, "admin", null);
+       }
+
+       if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" &&
+                       $op != "rss" && $op != "getUnread" && $op != "getProfiles" &&
+                       $op != "fbexport" && $op != "logout" && $op != "pubsub") {
+
+               header("Content-Type: text/plain");
+               print json_encode(array("error" => array("code" => 6)));
+               return;
        }
 
        $purge_intervals = array(
-               0  => _("Use default"),
-               -1 => _("Never purge"),
-               5  => _("1 week old"),
-               14 => _("2 weeks old"),
-               31 => _("1 month old"),
-               60 => _("2 months old"),
-               90 => _("3 months old"));
+               0  => __("Use default"),
+               -1 => __("Never purge"),
+               5  => __("1 week old"),
+               14 => __("2 weeks old"),
+               31 => __("1 month old"),
+               60 => __("2 months old"),
+               90 => __("3 months old"));
 
        $update_intervals = array(
-               0   => _("Use default"),
-               -1  => _("Disable updates"),
-               30  => _("Each 30 minutes"),
-               60  => _("Hourly"),
-               240 => _("Each 4 hours"),
-               720 => _("Each 12 hours"),
-               1440 => _("Daily"),
-               10080 => _("Weekly"));
-
+               0   => __("Default interval"),
+               -1  => __("Disable updates"),
+               15  => __("Each 15 minutes"),
+               30  => __("Each 30 minutes"),
+               60  => __("Hourly"),
+               240 => __("Each 4 hours"),
+               720 => __("Each 12 hours"),
+               1440 => __("Daily"),
+               10080 => __("Weekly"));
+
+       $update_intervals_nodefault = array(
+               -1  => __("Disable updates"),
+               15  => __("Each 15 minutes"),
+               30  => __("Each 30 minutes"),
+               60  => __("Hourly"),
+               240 => __("Each 4 hours"),
+               720 => __("Each 12 hours"),
+               1440 => __("Daily"),
+               10080 => __("Weekly"));
+
+       $update_methods = array(
+               0   => __("Default"),
+               1   => __("Magpie"),
+               2   => __("SimplePie"),
+               3   => __("Twitter OAuth"));
+
+       if (DEFAULT_UPDATE_METHOD == "1") {
+               $update_methods[0] .= ' (SimplePie)';
+       } else {
+               $update_methods[0] .= ' (Magpie)';
+       }
 
        $access_level_names = array(
-               0 => _("User"), 
-               10 => _("Administrator"));
+               0 => __("User"),
+               5 => __("Power User"),
+               10 => __("Administrator"));
 
        require_once "modules/pref-prefs.php";
        require_once "modules/popup-dialog.php";
        require_once "modules/pref-filters.php";
        require_once "modules/pref-labels.php";
        require_once "modules/pref-users.php";
-       require_once "modules/pref-feed-browser.php"; 
-
-
-       if (!sanity_check($link)) { return; }
+       require_once "modules/pref-instances.php";
 
-       if ($op == "rpc") {
-               handle_rpc_request($link);
-       }
-       
-       if ($op == "feeds") {
-
-               $tags = $_GET["tags"];
-
-               $subop = $_GET["subop"];
-
-               if ($subop == "catchupAll") {
-                       db_query($link, "UPDATE ttrss_user_entries SET 
-                               last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
-               }
-
-               if ($subop == "collapse") {
-                       $cat_id = db_escape_string($_GET["cid"]);
-
-                       db_query($link, "UPDATE ttrss_feed_categories SET
-                               collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " . 
-                               $_SESSION["uid"]);
-                       return;
-               }
-
-               outputFeedList($link, $tags);
+       $error = sanity_check($link);
 
+       if ($error['code'] != 0 && $op != "logout") {
+               print json_encode(array("error" => $error));
+               return;
        }
 
-       if ($op == "view") {
-
-               $id = db_escape_string($_GET["id"]);
-               $feed_id = db_escape_string($_GET["feed"]);
-
-               $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
-                       WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
-
-               if (db_num_rows($result) == 1) {
-                       $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
-               } else {
-                       $rtl_content = false;
-               }
-
-               if ($rtl_content) {
-                       $rtl_tag = "dir=\"RTL\"";
-                       $rtl_class = "RTL";
-               } else {
-                       $rtl_tag = "";
-                       $rtl_class = "";
-               }
-
-               $result = db_query($link, "UPDATE ttrss_user_entries 
-                       SET unread = false,last_read = NOW() 
-                       WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
-
-               $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
-                       SUBSTRING(updated,1,16) as updated,
-                       (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
-                       num_comments,
-                       author
-                       FROM ttrss_entries,ttrss_user_entries
-                       WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
-
-               if ($result) {
-
-                       $link_target = "";
-
-                       if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW')) {
-                               $link_target = "target=\"_new\"";
+       switch($op) { // Select action according to $op value.
+               case "rpc":
+                       // Handle remote procedure calls.
+                       handle_rpc_request($link);
+               break; // rpc
+
+               case "feeds":
+                       $subop = $_REQUEST["subop"];
+                       $root = (bool)$_REQUEST["root"];
+
+                       switch($subop) {
+                               case "catchupAll":
+                                       db_query($link, "UPDATE ttrss_user_entries SET
+                                               last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
+                                       ccache_zero_all($link, $_SESSION["uid"]);
+
+                               break;
+
+                               case "collapse":
+                                       $cat_id = db_escape_string($_REQUEST["cid"]);
+                                       $mode = (int) db_escape_string($_REQUEST['mode']);
+                                       toggle_collapse_cat($link, $cat_id, $mode);
+                                       return;
+                               break;
                        }
 
-                       $line = db_fetch_assoc($result);
-
-                       if ($line["icon_url"]) {
-                               $feed_icon = "<img class=\"feedIcon\" src=\"" . $line["icon_url"] . "\">";
+                       if (!$root) {
+                               print json_encode(outputFeedList($link));
                        } else {
-                               $feed_icon = "&nbsp;";
-                       }
 
-/*                     if ($line["comments"] && $line["link"] != $line["comments"]) {
-                               $entry_comments = "(<a href=\"".$line["comments"]."\">Comments</a>)";
-                       } else {
-                               $entry_comments = "";
-                       } */
+                               $feeds = outputFeedList($link, false);
 
-                       $num_comments = $line["num_comments"];
-                       $entry_comments = "";
+                               $root = array();
+                               $root['id'] = 'root';
+                               $root['name'] = __('Feeds');
+                               $root['items'] = $feeds['items'];
 
-                       if ($num_comments > 0) {
-                               if ($line["comments"]) {
-                                       $comments_url = $line["comments"];
-                               } else {
-                                       $comments_url = $line["link"];
-                               }
-                               $entry_comments = "<a $link_target href=\"$comments_url\">$num_comments comments</a>";
-                       } else {
-                               if ($line["comments"] && $line["link"] != $line["comments"]) {
-                                       $entry_comments = "<a $link_target href=\"".$line["comments"]."\">comments</a>";
-                               }                               
+                               $fl = array();
+                               $fl['identifier'] = 'id';
+                               $fl['label'] = 'name';
+                               $fl['items'] = array($root);
+
+                               print json_encode($fl);
                        }
 
-                       print "<div class=\"postReply\">";
+               break; // feeds
 
-                       print "<div class=\"postHeader\">";
+               case "la":
+                       $id = db_escape_string($_REQUEST['id']);
 
-                       $entry_author = $line["author"];
+                       $result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
+                               WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'
+                               LIMIT 1");
 
-                       if ($entry_author) {
-                               $entry_author = _(" - by ") . $entry_author;
-                       }
+                       if (db_num_rows($result) == 1) {
+                               $article_url = db_fetch_result($result, 0, 'link');
+                               $article_url = str_replace("\n", "", $article_url);
 
-                       $parsed_updated = date(get_pref($link, 'LONG_DATE_FORMAT'), 
-                               strtotime($line["updated"]));
-               
-                       print "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
+                               header("Location: $article_url");
+                               return;
 
-                       if ($line["link"]) {
-                               print "<div clear='both'><a $link_target href=\"" . $line["link"] . "\">" . 
-                                       $line["title"] . "</a>$entry_author</div>";
                        } else {
-                               print "<div clear='both'>" . $line["title"] . "$entry_author</div>";
+                               print_error(__("Article not found."));
                        }
+               break;
 
-                       $tmp_result = db_query($link, "SELECT DISTINCT tag_name FROM
-                               ttrss_tags WHERE post_int_id = " . $line["int_id"] . "
-                               ORDER BY tag_name");
-       
-                       $tags_str = "";
-                       $f_tags_str = "";
-
-                       $num_tags = 0;
-
-                       while ($tmp_line = db_fetch_assoc($tmp_result)) {
-                               $num_tags++;
-                               $tag = $tmp_line["tag_name"];                           
-                               $tag_str = "<a href=\"javascript:viewfeed('$tag')\">$tag</a>, "; 
-                               
-                               if ($num_tags == 6) {
-                                       $tags_str .= "<a href=\"javascript:showBlockElement('allEntryTags')\">...</a>";
-                               } else if ($num_tags < 6) {
-                                       $tags_str .= $tag_str;
-                               }
-                               $f_tags_str .= $tag_str;
-                       }
+               case "view":
 
-                       $tags_str = preg_replace("/, $/", "", $tags_str);
-                       $f_tags_str = preg_replace("/, $/", "", $f_tags_str);
+                       $id = db_escape_string($_REQUEST["id"]);
+                       $cids = split(",", db_escape_string($_REQUEST["cids"]));
+                       $mode = db_escape_string($_REQUEST["mode"]);
+                       $omode = db_escape_string($_REQUEST["omode"]);
 
-                       if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
+                       // in prefetch mode we only output requested cids, main article
+                       // just gets marked as read (it already exists in client cache)
 
-                       if (!$tags_str) $tags_str = '<span class="tagList">'._('no tags').'</span>';
+                       $articles = array();
 
-                       print "<div style='float : right'>$tags_str 
-                               <a title=\"Edit tags for this article\" 
-                                       href=\"javascript:editArticleTags($id, $feed_id)\">(+)</a></div>
-                               <div clear='both'>$entry_comments</div>";
-
-                       print "</div>";
+                       if ($mode == "") {
+                               array_push($articles, format_article($link, $id, false));
+                       } else if ($mode == "zoom") {
+                               array_push($articles, format_article($link, $id, false, true, true));
+                       } else if ($mode == "raw") {
+                               if ($_REQUEST['html']) {
+                                       header("Content-Type: text/html");
+                                       print '<link rel="stylesheet" type="text/css" href="tt-rss.css"/>';
+                               }
 
-                       print "<div class=\"postIcon\">" . $feed_icon . "</div>";
-                       print "<div class=\"postContent\">";
-                       
-                       if (db_num_rows($tmp_result) > 0) {
-                               print "<div id=\"allEntryTags\">"._('Tags:')."$f_tags_str</div>";
+                               $article = format_article($link, $id, false);
+                               print $article['content'];
+                               return;
+                       } else {
+                               catchupArticleById($link, $id, 0);
                        }
 
-                       if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW')) {
-                               $line["content"] = preg_replace("/href=/i", "target=\"_new\" href=", $line["content"]);
+                       if (!$_SESSION["bw_limit"]) {
+                               foreach ($cids as $cid) {
+                                       if ($cid) {
+                                               array_push($articles, format_article($link, $cid, false, false));
+                                       }
+                               }
                        }
 
-                       $line["content"] = sanitize_rss($line["content"]);
-
-                       print $line["content"] . "</div>";
-                       
-                       print "</div>";
+                       print json_encode($articles);
 
-               }
-       }
+               break; // view
 
-       if ($op == "viewfeed") {
+               case "viewfeed":
 
-               $feed = db_escape_string($_GET["feed"]);
-               $subop = db_escape_string($_GET["subop"]);
-               $view_mode = db_escape_string($_GET["view_mode"]);
-               $limit = db_escape_string($_GET["limit"]);
-               $cat_view = db_escape_string($_GET["cat"]);
-               $next_unread_feed = db_escape_string($_GET["nuf"]);
-               $offset = db_escape_string($_GET["skip"]);
+                       $timing_info = getmicrotime();
 
-               if (!$offset) $offset = 0;
+                       $reply = array();
 
-               if ($subop == "undefined") $subop = "";
+                       if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 
-               if ($subop == "CatchupSelected") {
-                       $ids = split(",", db_escape_string($_GET["ids"]));
-                       $cmode = sprintf("%d", $_GET["cmode"]);
+                       $omode = db_escape_string($_REQUEST["omode"]);
 
-                       catchupArticlesById($link, $ids, $cmode);
-               }
+                       $feed = db_escape_string($_REQUEST["feed"]);
+                       $subop = db_escape_string($_REQUEST["subop"]);
+                       $view_mode = db_escape_string($_REQUEST["view_mode"]);
+                       $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
+                       @$cat_view = db_escape_string($_REQUEST["cat"]);
+                       @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
+                       @$offset = db_escape_string($_REQUEST["skip"]);
+                       @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
+                       $order_by = db_escape_string($_REQUEST["order_by"]);
 
-               if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
-                       update_generic_feed($link, $feed, $cat_view);
-               }
-
-               if ($subop == "MarkAllRead")  {
-                       catchup_feed($link, $feed, $cat_view);
-
-                       if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
-                               if ($next_unread_feed) {
-                                       $feed = $next_unread_feed;
-                               }
-                       }
-               }
+                       /* Feed -5 is a special case: it is used to display auxiliary information
+                        * when there's nothing to load - e.g. no stuff in fresh feed */
 
-               if ($feed_id > 0) {             
-                       $result = db_query($link,
-                               "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
-               
-                       if (db_num_rows($result) == 0) {
-                               print "<div align='center'>"._('Feed not found.')."</div>";
+                       if ($feed == -5) {
+                               print json_encode(generate_dashboard_feed($link));
                                return;
                        }
-               }
-
-               if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
-       
-                       $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
-                               WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
 
-                       if (db_num_rows($result) == 1) {
-                               $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
-                       } else {
-                               $rtl_content = false;
-                       }
-       
-                       if ($rtl_content) {
-                               $rtl_tag = "dir=\"RTL\"";
-                       } else {
-                               $rtl_tag = "";
+                       $result = false;
+
+                       if ($feed < -10) {
+                               $label_feed = -11-$feed;
+                               $result = db_query($link, "SELECT id FROM ttrss_labels2 WHERE
+                                       id = '$label_feed' AND owner_uid = " . $_SESSION['uid']);
+                       } else if (!$cat_view && $feed > 0) {
+                               $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE
+                                       id = '$feed' AND owner_uid = " . $_SESSION['uid']);
+                       } else if ($cat_view && $feed > 0) {
+                               $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
+                                       id = '$feed' AND owner_uid = " . $_SESSION['uid']);
                        }
-               } else {
-                       $rtl_tag = "";
-                       $rtl_content = false;
-               }
 
-               $script_dt_add = get_script_dt_add();
-
-/*             print "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">  
-                       <script type=\"text/javascript\" src=\"prototype.js\"></script>
-                       <script type=\"text/javascript\" src=\"functions.js?$script_dt_add\"></script>
-                       <script type=\"text/javascript\" src=\"viewfeed.js?$script_dt_add\"></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 $rtl_tag>
-                       <script type=\"text/javascript\">
-                       if (document.addEventListener) {
-                               document.addEventListener(\"DOMContentLoaded\", init, null);
+                       if ($result && db_num_rows($result) == 0) {
+                               print json_encode(generate_error_feed($link, __("Feed not found.")));
+                               return;
                        }
-                       window.onload = init;
-                       </script>"; */
 
-               /// START /////////////////////////////////////////////////////////////////////////////////
+                       /* Updating a label ccache means recalculating all of the caches
+                        * so for performance reasons we don't do that here */
 
-               $search = db_escape_string($_GET["query"]);
-               $search_mode = db_escape_string($_GET["search_mode"]);
-               $match_on = db_escape_string($_GET["match_on"]);
-
-               if (!$match_on) {
-                       $match_on = "both";
-               }
-
-               $real_offset = $offset * $limit;
-
-               $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, 
-                       $search, $search_mode, $match_on, false, $real_offset);
-
-               $result = $qfh_ret[0];
-               $feed_title = $qfh_ret[1];
-               $feed_site_url = $qfh_ret[2];
-               $last_error = $qfh_ret[3];
-               
-               /// STOP //////////////////////////////////////////////////////////////////////////////////
-
-               print "<div id=\"headlinesContainer\" $rtl_tag>";
-
-               if (!$result) {
-                       print "<div align='center'>"._("Could not display feed (query failed). Please check label match syntax or local configuration.")."</div>";
-                       return;
-               }
-
-               print_headline_subtoolbar($link, $feed_site_url, $feed_title, false, 
-                       $rtl_content, $feed, $cat_view, $search, $match_on, $search_mode, 
-                       $offset, $limit);
-
-               print "<div id=\"headlinesInnerContainer\">";
-
-               if (db_num_rows($result) > 0) {
-
-#                      print "\{$offset}";
-
-                       if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
-                               print "<table class=\"headlinesList\" id=\"headlinesList\" 
-                                       cellspacing=\"0\" width=\"100%\">";
+                       if ($feed >= 0) {
+                               ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
                        }
 
-                       $lnum = 0;
-       
-                       error_reporting (DEFAULT_ERROR_LEVEL);
-       
-                       $num_unread = 0;
-       
-                       while ($line = db_fetch_assoc($result)) {
-
-                               $class = ($lnum % 2) ? "even" : "odd";
-       
-                               $id = $line["id"];
-                               $feed_id = $line["feed_id"];
-       
-                               if ($line["last_read"] == "" && 
-                                               ($line["unread"] != "t" && $line["unread"] != "1")) {
-       
-                                       $update_pic = "<img id='FUPDPIC-$id' src=\"images/updated.png\" 
-                                               alt=\"Updated\">";
-                               } else {
-                                       $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\" 
-                                               alt=\"Updated\">";
-                               }
-       
-                               if ($line["unread"] == "t" || $line["unread"] == "1") {
-                                       $class .= "Unread";
-                                       ++$num_unread;
-                                       $is_unread = true;
-                               } else {
-                                       $is_unread = false;
-                               }
-       
-                               if ($line["marked"] == "t" || $line["marked"] == "1") {
-                                       $marked_pic = "<img id=\"FMARKPIC-$id\" src=\"images/mark_set.png\" 
-                                               class=\"markedPic\"
-                                               alt=\"Reset mark\" onclick='javascript:toggleMark($id)'>";
-                               } else {
-                                       $marked_pic = "<img id=\"FMARKPIC-$id\" src=\"images/mark_unset.png\" 
-                                               class=\"markedPic\"
-                                               alt=\"Set mark\" onclick='javascript:toggleMark($id)'>";
-                               }
+                       set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
+                       set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
+                       set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 
-#                              $content_link = "<a target=\"_new\" href=\"".$line["link"]."\">" .
-#                                      $line["title"] . "</a>";
-
-                               $content_link = "<a href=\"javascript:view($id,$feed_id);\">" .
-                                       $line["title"] . "</a>";
+                       if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
+                               db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
+                                       WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
+                       }
 
-#                              $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
-#                                      $line["title"] . "</a>";
+                       $reply['headlines'] = array();
 
-                               if (get_pref($link, 'HEADLINES_SMART_DATE')) {
-                                       $updated_fmt = smart_date_time(strtotime($line["updated"]));
-                               } else {
-                                       $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
-                                       $updated_fmt = date($short_date, strtotime($line["updated"]));
-                               }                               
+                       if (!$next_unread_feed)
+                               $reply['headlines']['id'] = $feed;
+                       else
+                               $reply['headlines']['id'] = $next_unread_feed;
 
-                               if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
-                                       $content_preview = truncate_string(strip_tags($line["content_preview"]), 
-                                               100);
-                               }
+                       $reply['headlines']['is_cat'] = (bool) $cat_view;
 
-                               $entry_author = $line["author"];
+                       $override_order = false;
 
-                               if ($entry_author) {
-                                       $entry_author = " - by $entry_author";
-                               }
+                       if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
+                               $date_sort_field = "updated";
+                       } else {
+                               $date_sort_field = "date_entered";
+                       }
 
-                               if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
-                                       
-                                       print "<tr class='$class' id='RROW-$id'>";
-               
-                                       print "<td class='hlUpdatePic'>$update_pic</td>";
-               
-                                       print "<td class='hlSelectRow'>
-                                               <input type=\"checkbox\" onclick=\"toggleSelectRow(this)\"
-                                                       class=\"feedCheckBox\" id=\"RCHK-$id\">
-                                               </td>";
-               
-                                       print "<td class='hlMarkedPic'>$marked_pic</td>";
-
-                                       if ($line["feed_title"]) {                      
-                                               print "<td class='hlContent'>$content_link</td>";
-                                               print "<td class='hlFeed'>
-                                                       <a href=\"javascript:viewfeed($feed_id, '', false)\">".
-                                                               $line["feed_title"]."</a>&nbsp;</td>";
-                                       } else {                        
-                                               print "<td class='hlContent' valign='middle'>";
-
-                                               print "<a href=\"javascript:view($id,$feed_id);\">" .
-                                                       $line["title"];
-
-                                               if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
-                                                       if ($content_preview) {
-                                                               print "<span class=\"contentPreview\"> - $content_preview</span>";
-                                                       }
-                                               }
-               
-                                               print "</a>";
-                                               print "</td>";
-                                       }
-                                       
-                                       print "<td class=\"hlUpdated\"><nobr>$updated_fmt&nbsp;</nobr></td>";
-               
-                                       print "</tr>";
-
-                               } else {
-                                       
-                                       if ($is_unread) {
-                                               $add_class = "Unread";
+                       switch ($order_by) {
+                               case "date":
+                                       if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
+                                               $override_order = "$date_sort_field";
                                        } else {
-                                               $add_class = "";
-                                       }       
-                                       
-                                       print "<div class=\"cdmArticle$add_class\" id=\"RROW-$id\">";
-
-                                       print "<div class=\"cdmHeader\">";
-
-                                       print "<div class=\"articleUpdated\">$updated_fmt</div>";
-                                       
-                                       print "<a class=\"title\" 
-                                               onclick=\"javascript:toggleUnread($id, 0)\"
-                                               target=\"new\" href=\"".$line["link"]."\">".$line["title"]."</a>";
-
-                                       print $entry_author;
-
-                                       if ($line["feed_title"]) {      
-                                               print "&nbsp;(<a href='javascript:viewfeed($feed_id)'>".$line["feed_title"]."</a>)";
+                                               $override_order = "$date_sort_field DESC";
                                        }
+                                       break;
 
-                                       print "</div>";
+                               case "title":
+                                       if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
+                                               $override_order = "title DESC, $date_sort_field";
+                                       } else {
+                                               $override_order = "title, $date_sort_field DESC";
+                                       }
+                                       break;
 
-                                       print "<div class=\"cdmContent\">" . $line["content_preview"] . "</div><br clear=\"all\">";
+                               case "score":
+                                       if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
+                                               $override_order = "score, $date_sort_field";
+                                       } else {
+                                               $override_order = "score DESC, $date_sort_field DESC";
+                                       }
+                                       break;
+                       }
 
-                                       print "<div class=\"cdmFooter\">";
+                       if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 
-                                       print "$marked_pic";
+                       $ret = format_headlines_list($link, $feed, $subop,
+                               $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
+                               $vgroup_last_feed, $override_order);
 
-                                       print "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this, 
-                                                       'RROW-$id')\" class=\"feedCheckBox\" id=\"RCHK-$id\">";
+                       $topmost_article_ids = $ret[0];
+                       $headlines_count = $ret[1];
+                       $returned_feed = $ret[2];
+                       $disable_cache = $ret[3];
+                       $vgroup_last_feed = $ret[4];
 
-                                       $tags = get_article_tags($link, $id);
+                       $reply['headlines']['content'] = $ret[5];
+                       $reply['headlines']['toolbar'] = $ret[6];
 
-                                       $tags_str = "";
+                       if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 
-                                       foreach ($tags as $tag) {
-                                               $num_tags++;
-                                               $tags_str .= "<a href=\"javascript:viewfeed('$tag')\">$tag</a>, "; 
-                                       }
+                       $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
+                                       $cat_view, true);
 
-                                       $tags_str = preg_replace("/, $/", "", $tags_str);
+                       if ($headlines_unread == -1) {
+                               $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
+                       }
 
-                                       if ($tags_str == "") $tags_str = "no tags";
-       
-                                       print " $tags_str <a title=\"Edit tags for this article\" 
-                                                       href=\"javascript:editArticleTags($id, $feed_id, true)\">(+)</a>";
+                       $reply['headlines-info'] = array("count" => (int) $headlines_count,
+                               "vgroup_last_feed" => $vgroup_last_feed,
+                               "unread" => (int) $headlines_unread,
+                               "disable_cache" => (bool) $disable_cache);
 
-                                       print "</div>";
+                       if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 
-#                                      print "<div align=\"center\"><a class=\"cdmToggleLink\"
-#                                                      href=\"javascript:toggleUnread($id)\">
-#                                                      Toggle unread</a></div>";
+                       if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
+                               $articles = array();
 
-                                       print "</div>"; 
+                               foreach ($topmost_article_ids as $id) {
+                                       array_push($articles, format_article($link, $id, $feed, false));
+                               }
 
-                               }                               
-       
-                               ++$lnum;
+                               $reply['articles'] = $articles;
                        }
 
-                       if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {                        
-                               print "</table>";
+                       if ($subop) {
+                               $reply['counters'] = getAllCounters($link, $omode, $feed);
                        }
 
-//                     print_headline_subtoolbar($link, 
-//                             "javascript:catchupPage()", "Mark page as read", true, $rtl_content);
+                       if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 
+                       $reply['runtime-info'] = make_runtime_info($link);
 
-               } else {
-                       print "<div class='whiteBox'>"._('No articles found.')."</div>";
-               }
+                       print json_encode($reply);
 
-               print "</div>";
+               break; // viewfeed
 
-               print "</div>";
-       }
+               case "pref-feeds":
+                       module_pref_feeds($link);
+               break; // pref-feeds
 
-       if ($op == "pref-feeds") {
-               module_pref_feeds($link);
-       }
+               case "pref-filters":
+                       module_pref_filters($link);
+               break; // pref-filters
 
-       if ($op == "pref-filters") {
-               module_pref_filters($link);
-       }
+               case "pref-labels":
+                       module_pref_labels($link);
+               break; // pref-labels
 
-       if ($op == "pref-labels") {
-               module_pref_labels($link);
-       }
+               case "pref-prefs":
+                       module_pref_prefs($link);
+               break; // pref-prefs
 
-       if ($op == "pref-prefs") {
-               module_pref_prefs($link);
-       }
+               case "pref-users":
+                       module_pref_users($link);
+               break; // prefs-users
 
-       if ($op == "pref-users") {
-               module_pref_users($link);
-       }
+               case "help":
+                       module_help($link);
+               break; // help
 
-       if ($op == "help") {
-               module_help($link);
-       }
+               case "dlg":
+                       module_popup_dialog($link);
+               break; // dlg
 
-       if ($op == "dlg") {
-               module_popup_dialog($link);
-       }
+               case "pref-pub-items":
+                       module_pref_pub_items($link);
+               break; // pref-pub-items
 
-       // update feeds of all users, may be used anonymously
-       if ($op == "globalUpdateFeeds") {
+               case "globalUpdateFeeds":
+                       // Update all feeds needing a update.
+                       update_daemon_common($link, 0, true, true);
+               break; // globalUpdateFeeds
 
-               $result = db_query($link, "SELECT id FROM ttrss_users");
+               case "pref-feed-browser":
+                       module_pref_feed_browser($link);
+               break; // pref-feed-browser
 
-               while ($line = db_fetch_assoc($result)) {
-                       $user_id = $line["id"];
-//                     print "<!-- updating feeds of uid $user_id -->";
-                       update_all_feeds($link, false, $user_id);
-               }
+               case "pref-instances":
+                       module_pref_instances($link);
+               break; // pref-instances
 
-               print "<rpc-reply>
-                       <message msg=\"All feeds updated\"/>
-               </rpc-reply>";
+               case "rss":
+                       $feed = db_escape_string($_REQUEST["id"]);
+                       $key = db_escape_string($_REQUEST["key"]);
+                       $is_cat = $_REQUEST["is_cat"] != false;
+                       $limit = (int)db_escape_string($_REQUEST["limit"]);
 
-       }
-
-       if ($op == "user-details") {
-
-               if (WEB_DEMO_MODE || $_SESSION["access_level"] < 10) {
-                       return;
-               }
-                         
-/*             print "<html><head>
-                       <title>Tiny Tiny RSS : User Details</title>
-                       <link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
-                       <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
-                       </head><body>"; */
-
-               $uid = sprintf("%d", $_GET["id"]);
-
-               print "<div id=\"infoBoxTitle\">User details</div>";
-
-               print "<div class='infoBoxContents'>";
-
-               $result = db_query($link, "SELECT login,
-                       SUBSTRING(last_login,1,16) AS last_login,
-                       access_level,
-                       (SELECT COUNT(int_id) FROM ttrss_user_entries 
-                               WHERE owner_uid = id) AS stored_articles
-                       FROM ttrss_users 
-                       WHERE id = '$uid'");
-                       
-               if (db_num_rows($result) == 0) {
-                       print "<h1>User not found</h1>";
-                       return;
-               }
-               
-#              print "<h1>User Details</h1>";
-
-               $login = db_fetch_result($result, 0, "login");
+                       $search = db_escape_string($_REQUEST["q"]);
+                       $match_on = db_escape_string($_REQUEST["m"]);
+                       $search_mode = db_escape_string($_REQUEST["smode"]);
+                       $view_mode = db_escape_string($_REQUEST["view-mode"]);
 
-#              print "<h1>$login</h1>";
-
-               print "<table width='100%'>";
+                       if (SINGLE_USER_MODE) {
+                               authenticate_user($link, "admin", null);
+                       }
 
-               $last_login = date(get_pref($link, 'LONG_DATE_FORMAT'),
-                       strtotime(db_fetch_result($result, 0, "last_login")));
-               $access_level = db_fetch_result($result, 0, "access_level");
-               $stored_articles = db_fetch_result($result, 0, "stored_articles");
+                       $owner_id = false;
 
-#              print "<tr><td>Username</td><td>$login</td></tr>";
-#              print "<tr><td>Access level</td><td>$access_level</td></tr>";
-               print "<tr><td>Last logged in</td><td>$last_login</td></tr>";
-               print "<tr><td>Stored articles</td><td>$stored_articles</td></tr>";
+                       if ($key) {
+                               $result = db_query($link, "SELECT owner_uid FROM
+                                       ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 
-               $result = db_query($link, "SELECT COUNT(id) as num_feeds FROM ttrss_feeds
-                       WHERE owner_uid = '$uid'");
+                               if (db_num_rows($result) == 1)
+                                       $owner_id = db_fetch_result($result, 0, "owner_uid");
+                       }
 
-               $num_feeds = db_fetch_result($result, 0, "num_feeds");
+                       if ($owner_id) {
+                               $_SESSION['uid'] = $owner_id;
 
-               print "<tr><td>Subscribed feeds count</td><td>$num_feeds</td></tr>";
+                               generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
+                                       $search, $search_mode, $match_on, $view_mode);
+                       } else {
+                               header('HTTP/1.1 403 Forbidden');
+                       }
+               break; // rss
 
-/*             $result = db_query($link, "SELECT 
-                       SUM(LENGTH(content)+LENGTH(title)+LENGTH(link)+LENGTH(guid)) AS db_size 
-                       FROM ttrss_user_entries,ttrss_entries 
-                               WHERE owner_uid = '$uid' AND ref_id = id");
+               case "getUnread":
+                       $login = db_escape_string($_REQUEST["login"]);
+                       $fresh = $_REQUEST["fresh"] == "1";
 
-               $db_size = round(db_fetch_result($result, 0, "db_size") / 1024);
+                       $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 
-               print "<tr><td>Approx. used DB size</td><td>$db_size KBytes</td></tr>";  */
+                       if (db_num_rows($result) == 1) {
+                               $uid = db_fetch_result($result, 0, "id");
 
-               print "</table>";
+                               print getGlobalUnread($link, $uid);
 
-               print "<h1>Subscribed feeds</h1>";
+                               if ($fresh) {
+                                       print ";";
+                                       print getFeedArticles($link, -3, false, true, $uid);
+                               }
 
-               $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
-                       WHERE owner_uid = '$uid' ORDER BY title");
+                       } else {
+                               print "-1;User not found";
+                       }
 
-               print "<ul class=\"userFeedList\">";
+               break; // getUnread
 
-               $row_class = "odd";
+               case "digestTest":
+                       print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
+               break; // digestTest
 
-               while ($line = db_fetch_assoc($result)) {
+               case "digestSend":
+                       send_headlines_digests($link);
+               break; // digestSend
 
-                       $icon_file = ICONS_URL."/".$line["id"].".ico";
+               case "loading":
+                       header("Content-type: text/html");
+                       print __("Loading, please wait...") . " " .
+                               "<img src='images/indicator_tiny.gif'>";
+               break; // loading
 
-                       if (file_exists($icon_file) && filesize($icon_file) > 0) {
-                               $feed_icon = "<img class=\"tinyFeedIcon\" src=\"$icon_file\">";
-                       } else {
-                               $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
-                       }
+               case "getProfiles":
+                       $login = db_escape_string($_REQUEST["login"]);
+                       $password = db_escape_string($_REQUEST["password"]);
 
-                       print "<li class=\"$row_class\">$feed_icon&nbsp;<a href=\"".$line["site_url"]."\">".$line["title"]."</a></li>";
+                       if (authenticate_user($link, $login, $password)) {
+                               $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
+                                       WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 
-                       $row_class = toggleEvenOdd($row_class);
+                               print "<select style='width: 100%' name='profile'>";
 
-               }
+                               print "<option value='0'>" . __("Default profile") . "</option>";
 
-               if (db_num_rows($result) < $num_feeds) {
-                        // FIXME - add link to show ALL subscribed feeds here somewhere
-                       print "<li><img 
-                               class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">&nbsp;...</li>";
-               }
-               
-               print "</ul>";
+                               while ($line = db_fetch_assoc($result)) {
+                                       $id = $line["id"];
+                                       $title = $line["title"];
 
-               print "</div>";
+                                       print "<option value='$id'>$title</option>";
+                               }
 
-               print "<div align='center'>
-                       <input type='submit' class='button'                     
-                       onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
+                               print "</select>";
 
-//             print "</body></html>"; 
+                               $_SESSION = array();
+                       }
+               break; // getprofiles
 
-       }
+               case "pubsub":
+                       $mode = db_escape_string($_REQUEST['hub_mode']);
+                       $feed_id = db_escape_string($_REQUEST['id']);
+                       $feed_url = db_escape_string($_REQUEST['hub_topic']);
 
-       if ($op == "pref-feed-browser") {
-               module_pref_feed_browser($link);
-       }
+                       // TODO: implement hub_verifytoken checking
 
-       if ($op == "rss") {
-               $feed = db_escape_string($_GET["id"]);
-               $user = db_escape_string($_GET["user"]);
-               $pass = db_escape_string($_GET["pass"]);
-               $is_cat = $_GET["is_cat"] != false;
+                       $result = db_query($link, "SELECT feed_url FROM ttrss_feeds
+                               WHERE id = '$feed_id'");
 
-               $search = db_escape_string($_GET["q"]);
-               $match_on = db_escape_string($_GET["m"]);
-               $search_mode = db_escape_string($_GET["smode"]);
+                       $check_feed_url = db_fetch_result($result, 0, "feed_url");
 
-               if (!$_SESSION["uid"] && $user && $pass) {
-                       authenticate_user($link, $user, $pass);
-               }
+                       if ($check_feed_url && ($check_feed_url == $feed_url || !$feed_url)) {
+                               if ($mode == "subscribe") {
 
-               if ($_SESSION["uid"] ||
-                       http_authenticate_user($link)) {
+                                       db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 2
+                                               WHERE id = '$feed_id'");
 
-                               generate_syndicated_feed($link, $feed, $is_cat, 
-                                       $search, $search_mode, $match_on);
-               }
-       }
+                                       print $_REQUEST['hub_challenge'];
+                                       return;
 
-       if ($op == "labelFromSearch") {
-               $search = db_escape_string($_GET["search"]);
-               $search_mode = db_escape_string($_GET["smode"]);
-               $match_on = db_escape_string($_GET["match"]);
-               $is_cat = db_escape_string($_GET["is_cat"]);
-               $title = db_escape_string($_GET["title"]);
-               $feed = sprintf("%d", $_GET["feed"]);
+                               } else if ($mode == "unsubscribe") {
 
-               $label_qparts = array();
+                                       db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 0
+                                               WHERE id = '$feed_id'");
 
-               $search_expr = getSearchSql($search, $match_on);
+                                       print $_REQUEST['hub_challenge'];
+                                       return;
 
-               if ($is_cat) {
-                       if ($feed != 0) {
-                               $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
-                       } else {
-                               $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
-                       }
-               } else {
-                       if ($search_mode == "all_feeds") {
-                               // NOOP
-                       } else if ($search_mode == "this_cat") {
+                               } else if (!$mode) {
 
-                               $tmp_result = db_query($link, "SELECT cat_id
-                                       FROM ttrss_feeds WHERE id = '$feed'");
+                                       // Received update ping, schedule feed update.
 
-                               $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
+                                       update_rss_feed($link, $feed_id, true, true);
 
-                               if ($cat_id > 0) {
-                                       $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
-                               } else {
-                                       $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
                                }
                        } else {
-                               $search_expr .= " AND ttrss_feeds.id = $feed ";
+                               header('HTTP/1.0 404 Not Found');
                        }
 
-               }
+               break; // pubsub
 
-               $search_expr = db_escape_string($search_expr);
+               case "logout":
+                       logout_user();
+                       header("Location: tt-rss.php");
+               break; // logout
 
-               print $search_expr;
+               case "fbexport":
 
-               if ($title) {
-                       $result = db_query($link,
-                               "INSERT INTO ttrss_labels (sql_exp,description,owner_uid) 
-                               VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
-               }
-       }
+                       $access_key = db_escape_string($_POST["key"]);
 
-       if ($op == "getUnread") {
-               $login = db_escape_string($_GET["login"]);
+                       // TODO: rate limit checking using last_connected
+                       $result = db_query($link, "SELECT id FROM ttrss_linked_instances
+                               WHERE access_key = '$access_key'");
 
-               header("Content-Type: text/plain; charset=utf-8");
+                       if (db_num_rows($result) == 1) {
 
-               $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
+                               $instance_id = db_fetch_result($result, 0, "id");
 
-               if (db_num_rows($result) == 1) {
-                       $uid = db_fetch_result($result, 0, "id");
-                       print getGlobalUnread($link, $uid);
-               } else {
-                       print "-1;User not found";
-               }
+                               $result = db_query($link, "SELECT feed_url, site_url, title, subscribers
+                                       FROM ttrss_feedbrowser_cache ORDER BY subscribers DESC LIMIT 100");
 
-               $print_exec_time = false;
-       }
+                               $feeds = array();
 
-       if ($op == "digestTest") {
-               header("Content-Type: text/plain");
-               print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
-               $print_exec_time = false;
+                               while ($line = db_fetch_assoc($result)) {
+                                       array_push($feeds, $line);
+                               }
 
-       }
+                               db_query($link, "UPDATE ttrss_linked_instances SET
+                                       last_status_in = 1 WHERE id = '$instance_id'");
 
-       if ($op == "digestSend") {
-               header("Content-Type: text/plain");
-               send_headlines_digests($link);
-               $print_exec_time = false;
+                               print json_encode(array("feeds" => $feeds));
+                       } else {
+                               print json_encode(array("error" => array("code" => 6)));
+                       }
+               break; // fbexport
 
-       }
+               default:
+                       header("Content-Type: text/plain");
+                       print json_encode(array("error" => array("code" => 7)));
+               break; // fallback
+       } // Select action according to $op value.
 
+       // We close the connection to database.
        db_close($link);
 ?>
-
-<?php if ($print_exec_time) { ?>
-<!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
-<?php } ?>