";
			foreach ($ids as $id) {
				$result = db_query($link, "DELETE FROM ttrss_archived_feeds WHERE
					(SELECT COUNT(*) FROM ttrss_user_entries 
						WHERE orig_feed_id = '$id') = 0 AND
						id = '$id' AND owner_uid = ".$_SESSION["uid"]);
				$rc = db_affected_rows($link, $result);
				print "";
			}
			print "";
			return;
		}
		if ($subop == "addfeed") {
			$feed = db_escape_string($_REQUEST['feed']);
			$cat = db_escape_string($_REQUEST['cat']);
			$login = db_escape_string($_REQUEST['login']);
			$pass = db_escape_string($_REQUEST['pass']);
			$rc = subscribe_to_feed($link, $feed, $cat, $login, $pass);
			print "";
			print "";
			print "";
			return;
		}
		if ($subop == "extractfeedurls") {
			print "";
			$urls = get_feeds_from_html($_REQUEST['url']);
			print "";
			print "";
			return;
		}
		if ($subop == "togglepref") {
			print "";
			$key = db_escape_string($_REQUEST["key"]);
			set_pref($link, $key, !get_pref($link, $key));
			$value = get_pref($link, $key);
			print "";
			print "";
			return;
		}
		if ($subop == "setpref") {
			print "";
			$key = db_escape_string($_REQUEST["key"]);
			$value = db_escape_string($_REQUEST["value"]);
			set_pref($link, $key, $value);
			print "";
			print "";
			return;
		}
		if ($subop == "mark") {
			$mark = $_REQUEST["mark"];
			$id = db_escape_string($_REQUEST["id"]);
			if ($mark == "1") {
				$mark = "true";
			} else {
				$mark = "false";
			}
			// FIXME this needs collision testing
			$result = db_query($link, "UPDATE ttrss_user_entries SET marked = $mark
				WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "delete") {
			$ids = db_escape_string($_REQUEST["ids"]);
			$result = db_query($link, "DELETE FROM ttrss_user_entries 				
				WHERE ref_id IN ($ids) AND owner_uid = " . $_SESSION["uid"]);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "unarchive") {
			$ids = db_escape_string($_REQUEST["ids"]);
			$result = db_query($link, "UPDATE ttrss_user_entries 
				SET feed_id = orig_feed_id, orig_feed_id = NULL
				WHERE ref_id IN ($ids) AND owner_uid = " . $_SESSION["uid"]);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "archive") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			foreach ($ids as $id) {
				archive_article($link, $id, $_SESSION["uid"]);
			}
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "publ") {
			$pub = $_REQUEST["pub"];
			$id = db_escape_string($_REQUEST["id"]);
			$note = trim(strip_tags(db_escape_string($_REQUEST["note"])));
			if ($pub == "1") {
				$pub = "true";
			} else {
				$pub = "false";
			}
			if ($note != 'undefined') {
				$note_qpart = "note = '$note',";
			}
			// FIXME this needs collision testing
			$result = db_query($link, "UPDATE ttrss_user_entries SET 
				$note_qpart
				published = $pub
				WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
			print "";
			
			if ($note != 'undefined') {
				$note_size = strlen($note);
				print "";
				print "";
				print "";
			}
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "updateFeed") {
			$feed_id = db_escape_string($_REQUEST["feed"]);
			update_rss_feed($link, $feed_id);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "updateAllFeeds" || $subop == "getAllCounters") {
			$last_article_id = (int) $_REQUEST["last_article_id"];	
			print "";
			if ($last_article_id != getLastArticleId($link)) {
				print "";
			}
 
			print_runtime_info($link);
			print "";
			return;
		}
		/* GET["cmode"] = 0 - mark as read, 1 - as unread, 2 - toggle */
		if ($subop == "catchupSelected") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			$cmode = sprintf("%d", $_REQUEST["cmode"]);
			catchupArticlesById($link, $ids, $cmode);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "markSelected") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			$cmode = sprintf("%d", $_REQUEST["cmode"]);
			markArticlesById($link, $ids, $cmode);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "publishSelected") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			$cmode = sprintf("%d", $_REQUEST["cmode"]);
			publishArticlesById($link, $ids, $cmode);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "sanityCheck") {
			print "";
			if (sanity_check($link)) {
				print "";
				print "";
				print_runtime_info($link);
				# assign client-passed params to session
				$_SESSION["client.userAgent"] = $_REQUEST["ua"];
			}
			print "";
			return;
		}		
		if ($subop == "globalPurge") {
			print "";
			global_purge_old_posts($link, true);
			print "";
			return;
		}
		if ($subop == "getArticleLink") {
			$id = db_escape_string($_REQUEST["id"]);
			$result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
				WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'");
			if (db_num_rows($result) == 1) {
				$link = htmlspecialchars(strip_tags(db_fetch_result($result, 0, "link")));
				print "$link$id";
			} else {
				print "Article not found";
			}
			return;
		}
		if ($subop == "setArticleTags") {
			global $memcache;
			$id = db_escape_string($_REQUEST["id"]);
			$tags_str = db_escape_string($_REQUEST["tags_str"]);
			$tags = array_unique(trim_array(split(",", $tags_str)));
			db_query($link, "BEGIN");
			$result = db_query($link, "SELECT int_id FROM ttrss_user_entries WHERE
				ref_id = '$id' AND owner_uid = '".$_SESSION["uid"]."' LIMIT 1");
			if (db_num_rows($result) == 1) {
				$tags_to_cache = array();
				$int_id = db_fetch_result($result, 0, "int_id");
				db_query($link, "DELETE FROM ttrss_tags WHERE 
					post_int_id = $int_id AND owner_uid = '".$_SESSION["uid"]."'");
				foreach ($tags as $tag) {
					$tag = sanitize_tag($tag);	
					if (!tag_is_valid($tag)) {
						continue;
					}
					if (preg_match("/^[0-9]*$/", $tag)) {
						continue;
					}
//					print "";
					
					if ($tag != '') {
						db_query($link, "INSERT INTO ttrss_tags 
							(post_int_id, owner_uid, tag_name) VALUES ('$int_id', '".$_SESSION["uid"]."', '$tag')");
					}
					array_push($tags_to_cache, $tag);
				}
				/* update tag cache */
				$tags_str = join(",", $tags_to_cache);
				db_query($link, "UPDATE ttrss_user_entries 
					SET tag_cache = '$tags_str' WHERE ref_id = '$id'
					AND owner_uid = " . $_SESSION["uid"]);
			}
			db_query($link, "COMMIT");
			if ($memcache) {
				$obj_id = md5("TAGS:".$_SESSION["uid"].":$id");
				$memcache->delete($obj_id);
			}
			$tags_str = format_tags_string(get_article_tags($link, $id), $id);
			print "
				
				";
			return;
		}
		if ($subop == "regenOPMLKey") {
			print "";
			update_feed_access_key($link, 'OPML:Publish', 
				false, $_SESSION["uid"]);
			$new_link = opml_publish_url($link);		
			print "";
			print "";
			return;
		}
		if ($subop == "logout") {
			logout_user();
			print_error_xml(6);
			return;
		}
		if ($subop == "completeTags") {
			$search = db_escape_string($_REQUEST["search"]);
			$result = db_query($link, "SELECT DISTINCT tag_name FROM ttrss_tags 
				WHERE owner_uid = '".$_SESSION["uid"]."' AND
			  	tag_name LIKE '$search%' ORDER BY tag_name
				LIMIT 10");
			print "
";
			while ($line = db_fetch_assoc($result)) {
				print "- " . $line["tag_name"] . "
 ";
			}
			print "
";
			return;
		}
		if ($subop == "purge") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			$days = sprintf("%d", $_REQUEST["days"]);
			print "";
			print "";
			print "";
			return;
		}
/*		if ($subop == "setScore") {
			$id = db_escape_string($_REQUEST["id"]);
			$score = sprintf("%d", $_REQUEST["score"]);
			$result = db_query($link, "UPDATE ttrss_user_entries SET score = '$score'
				WHERE ref_id = '$id' AND owner_uid = ".$_SESSION["uid"]);
			print "Acknowledged.";
			return;
		} */
		if ($subop == "getArticles") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			print "";
			foreach ($ids as $id) {
				if ($id) {
					outputArticleXML($link, $id, 0, false);
				}
			}
			print "";
			return;
		}
		if ($subop == "checkDate") {
			$date = db_escape_string($_REQUEST["date"]);
			$date_parsed = strtotime($date);
			print "";
			if ($date_parsed) {
				print "1";
			} else {
				print "0";
			}
			print "";
			return;
		}
		if ($subop == "removeFromLabel") {
			$ids = explode(",", db_escape_string($_REQUEST["ids"]));
			$label_id = db_escape_string($_REQUEST["lid"]);
			$label = db_escape_string(label_find_caption($link, $label_id, 
				$_SESSION["uid"]));
			print "";
			print "";
			if ($label) {
				foreach ($ids as $id) {
					label_remove_article($link, $id, $label, $_SESSION["uid"]);
					print "";
				}
			}
			print "";
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "assignToLabel") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			$label_id = db_escape_string($_REQUEST["lid"]);
			$label = db_escape_string(label_find_caption($link, $label_id, 
				$_SESSION["uid"]));
			print "";			
			print "";
			if ($label) {
				foreach ($ids as $id) {
					label_add_article($link, $id, $label, $_SESSION["uid"]);
					print "";
				}
			}
			print "";
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "updateFeedBrowser") {
			$search = db_escape_string($_REQUEST["search"]);
			$limit = db_escape_string($_REQUEST["limit"]);
			$mode = db_escape_string($_REQUEST["mode"]);
			print "";
			print "";
			print "";
			print "";
			print "";
			print "";
			print "";
			return;
		}
		if ($subop == "massSubscribe") {
			$ids = split(",", db_escape_string($_REQUEST["ids"]));
			$mode = $_REQUEST["mode"];
			$subscribed = array();
			foreach ($ids as $id) {
				if ($mode == 1) {
					$result = db_query($link, "SELECT feed_url,title FROM ttrss_feeds
						WHERE id = '$id'");
				} else if ($mode == 2) {
					$result = db_query($link, "SELECT * FROM ttrss_archived_feeds
						WHERE id = '$id' AND owner_uid = " . $_SESSION["uid"]);
					$orig_id = db_escape_string(db_fetch_result($result, 0, "id"));
					$site_url = db_escape_string(db_fetch_result($result, 0, "site_url"));
				}
	
				$feed_url = db_escape_string(db_fetch_result($result, 0, "feed_url"));
				$title = db_escape_string(db_fetch_result($result, 0, "title"));
	
				$title_orig = db_fetch_result($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($result) == 0) {			
					if ($mode == 1) {
						$result = db_query($link,
							"INSERT INTO ttrss_feeds (owner_uid,feed_url,title,cat_id) 
							VALUES ('".$_SESSION["uid"]."', '$feed_url', '$title', NULL)");
					} else if ($mode == 2) {
						$result = db_query($link,
							"INSERT INTO ttrss_feeds (id,owner_uid,feed_url,title,cat_id,site_url) 
							VALUES ('$orig_id','".$_SESSION["uid"]."', '$feed_url', '$title', NULL, '$site_url')");
					}
					array_push($subscribed, $title_orig);
				}
			}
			$num_feeds = count($subscribed);
			print "";
			print "";
			print "";
			return;
		} 
		if ($subop == "download") {
			$stage = (int) $_REQUEST["stage"];
			$cidt = (int)db_escape_string($_REQUEST["cidt"]);
			$cidb = (int)db_escape_string($_REQUEST["cidb"]);
			$sync = db_escape_string($_REQUEST["sync"]);
			//$amount = (int) $_REQUEST["amount"];
			//$unread_only = db_escape_string($_REQUEST["unread_only"]);
			//if (!$amount) $amount = 50;
			/* Amount is not used by the frontend offline.js anymore, it goes by
			 * date_qpart below + cidb/cidt IDs */
			$amount = 2000;
			$unread_only = true;
			print "";
			$sync = split(";", $sync);
			print "";
			if (count($sync) > 0) {
				if (strtotime($sync[0])) {
					$last_online = db_escape_string($sync[0]);
					print "";
					
					for ($i = 1; $i < count($sync); $i++) {
						$e = split(",", $sync[$i]);
						if (count($e) == 3) {
							$id = (int) $e[0];
							$unread = bool_to_sql_bool((bool) $e[1]);
							$marked = (bool)$e[2];
							if ($marked) {
								$marked = bool_to_sql_bool($marked);
								$marked_qpart = "marked = $marked,";
							}
							$query = "UPDATE ttrss_user_entries SET 
								$marked_qpart
								unread = $unread, 
								last_read = '$last_online' 
							WHERE ref_id = '$id' AND 
								(last_read IS NULL OR last_read < '$last_online') AND
								owner_uid = ".$_SESSION["uid"];
							$result = db_query($link, $query);
							print "";
						}
					}
					/* Maybe we need to further update local DB for this client */
					$query = "SELECT ref_id,unread,marked FROM ttrss_user_entries
						WHERE last_read >= '$last_online' AND
								owner_uid = ".$_SESSION["uid"] . " LIMIT 1000";
					$result = db_query($link, $query);
					while ($line = db_fetch_assoc($result)) {
						$unread = (int) sql_bool_to_bool($line["unread"]);
						$marked = (int) sql_bool_to_bool($line["marked"]);
						print "";
					}
				}
			}
			print "";
			if ($stage == 0) {
				print "";
				$result = db_query($link, "SELECT id, title, cat_id FROM
					ttrss_feeds WHERE owner_uid = ".$_SESSION["uid"]);
				while ($line = db_fetch_assoc($result)) {
					$has_icon = (int) feed_has_icon($line["id"]);
					print "";
				}
				print "";
				print "";
				$result = db_query($link, "SELECT id, title, collapsed FROM
					ttrss_feed_categories WHERE owner_uid = ".$_SESSION["uid"]);
					print "";
					print "";
					print "";
				while ($line = db_fetch_assoc($result)) {
					print "";
				}
				print "";
				print "";
				$result = db_query($link, "SELECT * FROM
					ttrss_labels2 WHERE owner_uid = ".$_SESSION["uid"]);
				while ($line = db_fetch_assoc($result)) {
					print "";
				}
				print "";
			}
			if ($stage > 0) {
				print "";
				$limit = 10;
				$skip = $limit*($stage-1);
				print "";
				if ($amount > 0) $amount -= $skip;
				if ($amount > 0) {
					$limit = min($limit, $amount);
					if ($unread_only) {
						$unread_qpart = "(unread = true OR marked = true) AND ";
					}
					if ($cidt && $cidb) {
						$cid_qpart =  "(ttrss_entries.id > $cidt OR ttrss_entries.id < $cidb) AND ";
					}
					if (DB_TYPE == "pgsql") {
						$date_qpart = "updated >= NOW() - INTERVAL '1 week' AND";
					} else {
						$date_qpart = "updated >= DATE_SUB(NOW(), INTERVAL 1 WEEK) AND";
					}			
					$result = db_query($link,
						"SELECT DISTINCT ttrss_entries.id,ttrss_entries.title,
							guid,link,comments,
							feed_id,content,updated,unread,marked FROM
							ttrss_user_entries,ttrss_entries,ttrss_feeds
						WHERE $unread_qpart $cid_qpart $date_qpart
							ttrss_feeds.id = feed_id AND
							ref_id = ttrss_entries.id AND 
							ttrss_user_entries.owner_uid = ".$_SESSION["uid"]."
							ORDER BY updated DESC LIMIT $limit OFFSET $skip");
					if (function_exists('json_encode')) {
						while ($line = db_fetch_assoc($result)) {
							print "";
						}	
					}
				}
				print "";
			}
			print "";
			return;
		}
		if ($subop == "digest-get-contents") {
			$article_id = db_escape_string($_REQUEST['article_id']);
			$result = db_query($link, "SELECT content 
				FROM ttrss_entries, ttrss_user_entries
				WHERE id = '$article_id' AND ref_id = id AND owner_uid = ".$_SESSION['uid']);
			print "";
			print "";
			print "";
			return;
		}
		if ($subop == "digest-update") {
			$feed_id = db_escape_string($_REQUEST['feed_id']);
			$offset = db_escape_string($_REQUEST['offset']);
			$seq = db_escape_string($_REQUEST['seq']);
		
			if (!$feed_id) $feed_id = -4;
			if (!$offset) $offset = 0;
			print "";
			print "$seq";
			$headlines = api_get_headlines($link, $feed_id, 10, $offset,
				'', ($feed_id == -4), true, false, "unread", "updated DESC");
			//function api_get_headlines($link, $feed_id, $limit, $offset,
			//		$filter, $is_cat, $show_excerpt, $show_content, $view_mode) {
			print "";
			print "";
			print "";
			return;
		}
		if ($subop == "digest-init") {
			print "";
			$tmp_feeds = api_get_feeds($link, false, true, false, 0);
			$feeds = array();
			foreach ($tmp_feeds as $f) {
				if ($f['id'] > 0 || $f['id'] == -4) array_push($feeds, $f);
			}
			print "";
			print "";
			return;
		}
		if ($subop == "catchupFeed") {
			$feed_id = db_escape_string($_REQUEST['feed_id']);
			$is_cat = db_escape_string($_REQUEST['is_cat']);
			print "";
			catchup_feed($link, $feed_id, $is_cat);
			print "";
			return;
		}
		if ($subop == "sendEmail") {
			$secretkey = $_REQUEST['secretkey'];
			print "";
			if (DIGEST_ENABLE && $_SESSION['email_secretkey'] && 
						$secretkey == $_SESSION['email_secretkey']) {
				$_SESSION['email_secretkey'] = '';
				$destination = $_REQUEST['destination'];
				$subject = $_REQUEST['subject'];
				$content = $_REQUEST['content'];
				$replyto = strip_tags($_SESSION['email_replyto']);
				$fromname = strip_tags($_SESSION['email_fromname']);
				$mail = new PHPMailer();
				$mail->PluginDir = "lib/phpmailer/";
				$mail->SetLanguage("en", "lib/phpmailer/language/");
				$mail->CharSet = "UTF-8";
				$mail->From = $replyto;
				$mail->FromName = $fromname;
				$mail->AddAddress($destination);
				if (DIGEST_SMTP_HOST) {
					$mail->Host = DIGEST_SMTP_HOST;
					$mail->Mailer = "smtp";
					$mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
					$mail->Username = DIGEST_SMTP_LOGIN;
					$mail->Password = DIGEST_SMTP_PASSWORD;
				}
				$mail->IsHTML(false);
				$mail->Subject = $subject;
				$mail->Body = $content;
				$rc = $mail->Send();
				if (!$rc) {
					print "ErrorInfo . "]]>";
				} else {
					save_email_address($link, db_escape_string($destination));
					print "UPDATE_COUNTERS";
				}
			} else {
				print "Not authorized.";
			}
			print "";
			return;
		}
		if ($subop == "completeEmails") {
			$search = db_escape_string($_REQUEST["search"]);
			print "";
			foreach ($_SESSION['stored_emails'] as $email) {
				if (strpos($email, $search) !== false) {
					print "- $email
 ";
				}
			}
			print "
";
			return;
		}
		if ($subop == "quickAddCat") {
			print "";	
			$cat = db_escape_string($_REQUEST["cat"]);
			add_feed_category($link, $cat);
			$result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
				title = '$cat' AND owner_uid = " . $_SESSION["uid"]);
			if (db_num_rows($result) == 1) {
				$id = db_fetch_result($result, 0, "id");
			} else {
				$id = 0;
			}
			print_feed_cat_select($link, "cat_id", $id);
			print "";
			return;
		}
		if ($subop == "regenFeedKey") {
			$feed_id = db_escape_string($_REQUEST['id']);
			$is_cat = (bool) db_escape_string($_REQUEST['is_cat']);
			print "";
			$new_key = update_feed_access_key($link, $feed_id, $is_cat);
			print "";
			print "";
			return;
		}
		if ($subop == "clearKeys") {
			db_query($link, "DELETE FROM ttrss_access_keys WHERE
				owner_uid = " . $_SESSION["uid"]);
			print "";
			print "UPDATE_COUNTERS";
			print "";
			return;
		}
		if ($subop == "verifyRegexp") {
			$reg_exp = $_REQUEST["reg_exp"];
			print "";
			if (@preg_match("/$reg_exp/i", "TEST") === false) {
				print "INVALID";
			} else {
				print "OK";
			}
			print "";
			return;
		}
		print "Unknown method: $subop";
	}
?>