X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=classes%2Fhandler%2Fpublic.php;h=dbed3fee6f6b2e578a3f27b7713ba426914c4e2d;hb=253dbd48562f0742befe0335278c4e26ac313efe;hp=037e6bf0f46cc767abc845c2425fba3da4eefe26;hpb=bf5bcb8e272feb19103d601d29f17cb9917e95c3;p=tt-rss.git

diff --git a/classes/handler/public.php b/classes/handler/public.php
old mode 100644
new mode 100755
index 037e6bf0..dbed3fee
--- a/classes/handler/public.php
+++ b/classes/handler/public.php
@@ -2,8 +2,8 @@
 class Handler_Public extends Handler {
 
 	private function generate_syndicated_feed($owner_uid, $feed, $is_cat,
-		$limit, $offset, $search, $search_mode,
-		$view_mode = false, $format = 'atom', $order = false, $orig_guid = false) {
+		$limit, $offset, $search,
+		$view_mode = false, $format = 'atom', $order = false, $orig_guid = false, $start_ts = false) {
 
 		require_once "lib/MiniTemplator.class.php";
 
@@ -15,19 +15,16 @@ class Handler_Public extends Handler {
 		if (!$limit) $limit = 60;
 
 		$date_sort_field = "date_entered DESC, updated DESC";
-		$date_check_field = "date_entered";
 
 		if ($feed == -2 && !$is_cat) {
 			$date_sort_field = "last_published DESC";
-			$date_check_field = "last_published";
 		} else if ($feed == -1 && !$is_cat) {
 			$date_sort_field = "last_marked DESC";
-			$date_check_field = "last_marked";
 		}
 
 		switch ($order) {
 		case "title":
-			$date_sort_field = "ttrss_entries.title";
+			$date_sort_field = "ttrss_entries.title, date_entered, updated";
 			break;
 		case "date_reverse":
 			$date_sort_field = "date_entered, updated";
@@ -37,37 +34,45 @@ class Handler_Public extends Handler {
 			break;
 		}
 
-		$qfh_ret = queryFeedHeadlines($feed,
-			1, $view_mode, $is_cat, $search, $search_mode,
-			$date_sort_field, $offset, $owner_uid,
-			false, 0, false, true);
-
-		$result = $qfh_ret[0];
-
-		if ($this->dbh->num_rows($result) != 0) {
-
-			$ts = strtotime($this->dbh->fetch_result($result, 0, $date_check_field));
-
-			if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) &&
-					strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $ts) {
-		      header('HTTP/1.0 304 Not Modified');
-		      return;
+		$params = array(
+			"owner_uid" => $owner_uid,
+			"feed" => $feed,
+			"limit" => $limit,
+			"view_mode" => $view_mode,
+			"cat_view" => $is_cat,
+			"search" => $search,
+			"override_order" => $date_sort_field,
+			"include_children" => true,
+			"ignore_vfeed_group" => true,
+			"offset" => $offset,
+			"start_ts" => $start_ts
+		);
+
+		if (!$is_cat && is_numeric($feed) && $feed < PLUGIN_FEED_BASE_INDEX && $feed > LABEL_BASE_INDEX) {
+
+			$user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
+
+			$tmppluginhost = new PluginHost();
+			$tmppluginhost->load(PLUGINS, PluginHost::KIND_ALL);
+			$tmppluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
+			$tmppluginhost->load_data();
+
+			$handler = $tmppluginhost->get_feed_handler(
+				PluginHost::feed_to_pfeed_id($feed));
+
+			if ($handler) {
+				$qfh_ret = $handler->get_headlines(PluginHost::feed_to_pfeed_id($feed),
+					$options);
 			}
 
-			$last_modified = gmdate("D, d M Y H:i:s", $ts) . " GMT";
-			header("Last-Modified: $last_modified", true);
+		} else {
+			$qfh_ret = Feeds::queryFeedHeadlines($params);
 		}
 
-		$qfh_ret = queryFeedHeadlines($feed,
-			$limit, $view_mode, $is_cat, $search, $search_mode,
-			$date_sort_field, $offset, $owner_uid,
-			false, 0, false, true);
-
-
 		$result = $qfh_ret[0];
 		$feed_title = htmlspecialchars($qfh_ret[1]);
 		$feed_site_url = $qfh_ret[2];
-		$last_error = $qfh_ret[3];
+		/* $last_error = $qfh_ret[3]; */
 
 		$feed_self_url = get_self_url_prefix() .
 			"/public.php?op=rss&id=$feed&key=" .
@@ -84,28 +89,28 @@ class Handler_Public extends Handler {
 			$tpl->setVariable('VERSION', VERSION, true);
 			$tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url), true);
 
-			if (PUBSUBHUBBUB_HUB && $feed == -2) {
-				$tpl->setVariable('HUB_URL', htmlspecialchars(PUBSUBHUBBUB_HUB), true);
-				$tpl->addBlock('feed_hub');
-			}
-
 			$tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()), true);
-			while ($line = $this->dbh->fetch_assoc($result)) {
-				$line["content_preview"] = truncate_string(strip_tags($line["content"]), 100, '...');
+			while ($line = $result->fetch()) {
+
+				$line["content_preview"] = sanitize(truncate_string(strip_tags($line["content"]), 100, '...'));
 
 				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_QUERY_HEADLINES) as $p) {
 					$line = $p->hook_query_headlines($line);
 				}
 
+				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_EXPORT_FEED) as $p) {
+					$line = $p->hook_article_export_feed($line, $feed, $is_cat);
+				}
+
 				$tpl->setVariable('ARTICLE_ID',
 					htmlspecialchars($orig_guid ? $line['link'] :
-						get_self_url_prefix() .
-							"/public.php?url=" . urlencode($line['link'])), true);
+							$this->make_article_tag_uri($line['id'], $line['date_entered'])), true);
 				$tpl->setVariable('ARTICLE_LINK', htmlspecialchars($line['link']), true);
 				$tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($line['title']), true);
 				$tpl->setVariable('ARTICLE_EXCERPT', $line["content_preview"], true);
 
-				$content = sanitize($line["content"], false, $owner_uid);
+				$content = sanitize($line["content"], false, $owner_uid,
+					$feed_site_url, false, $line["id"]);
 
 				if ($line['note']) {
 					$content = "<div style=\"$note_style\">Article note: " . $line['note'] . "</div>" .
@@ -122,22 +127,22 @@ class Handler_Public extends Handler {
 
 				$tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']), true);
 
-				$tpl->setVariable('ARTICLE_SOURCE_LINK', htmlspecialchars($line['site_url']), true);
+				$tpl->setVariable('ARTICLE_SOURCE_LINK', htmlspecialchars($line['site_url'] ? $line["site_url"] : get_self_url_prefix()), true);
 				$tpl->setVariable('ARTICLE_SOURCE_TITLE', htmlspecialchars($line['feed_title'] ? $line['feed_title'] : $feed_title), true);
 
-				$tags = get_article_tags($line["id"], $owner_uid);
+				$tags = Article::get_article_tags($line["id"], $owner_uid);
 
 				foreach ($tags as $tag) {
 					$tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag), true);
 					$tpl->addBlock('category');
 				}
 
-				$enclosures = get_article_enclosures($line["id"]);
+				$enclosures = Article::get_article_enclosures($line["id"]);
 
 				foreach ($enclosures as $e) {
 					$type = htmlspecialchars($e['content_type']);
 					$url = htmlspecialchars($e['content_url']);
-					$length = $e['duration'];
+					$length = $e['duration'] ? $e['duration'] : 1;
 
 					$tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url, true);
 					$tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type, true);
@@ -154,7 +159,7 @@ class Handler_Public extends Handler {
 			$tpl->addBlock('feed');
 			$tpl->generateOutputToString($tmp);
 
-			if (@!$_REQUEST["noxml"]) {
+			if (@!clean($_REQUEST["noxml"])) {
 				header("Content-Type: text/xml; charset=utf-8");
 			} else {
 				header("Content-Type: text/plain; charset=utf-8");
@@ -169,32 +174,35 @@ class Handler_Public extends Handler {
 			$feed['version'] = VERSION;
 			$feed['feed_url'] = $feed_self_url;
 
-			if (PUBSUBHUBBUB_HUB && $feed == -2) {
-				$feed['hub_url'] = PUBSUBHUBBUB_HUB;
-			}
-
 			$feed['self_url'] = get_self_url_prefix();
 
 			$feed['articles'] = array();
 
-			while ($line = $this->dbh->fetch_assoc($result)) {
-				$line["content_preview"] = truncate_string(strip_tags($line["content_preview"]), 100, '...');
+			while ($line = $result->fetch()) {
+
+				$line["content_preview"] = sanitize(truncate_string(strip_tags($line["content_preview"]), 100, '...'));
+
 				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_QUERY_HEADLINES) as $p) {
 					$line = $p->hook_query_headlines($line, 100);
 				}
+
+				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_EXPORT_FEED) as $p) {
+					$line = $p->hook_article_export_feed($line, $feed, $is_cat);
+				}
+
 				$article = array();
 
 				$article['id'] = $line['link'];
 				$article['link']	= $line['link'];
 				$article['title'] = $line['title'];
 				$article['excerpt'] = $line["content_preview"];
-				$article['content'] = sanitize($line["content"], false, $owner_uid);
+				$article['content'] = sanitize($line["content"], false, $owner_uid, $feed_site_url, false, $line["id"]);
 				$article['updated'] = date('c', strtotime($line["updated"]));
 
 				if ($line['note']) $article['note'] = $line['note'];
 				if ($article['author']) $article['author'] = $line['author'];
 
-				$tags = get_article_tags($line["id"], $owner_uid);
+				$tags = Article::get_article_tags($line["id"], $owner_uid);
 
 				if (count($tags) > 0) {
 					$article['tags'] = array();
@@ -204,7 +212,7 @@ class Handler_Public extends Handler {
 					}
 				}
 
-				$enclosures = get_article_enclosures($line["id"]);
+				$enclosures = Article::get_article_enclosures($line["id"]);
 
 				if (count($enclosures) > 0) {
 					$article['enclosures'] = array();
@@ -231,38 +239,39 @@ class Handler_Public extends Handler {
 	}
 
 	function getUnread() {
-		$login = $this->dbh->escape_string($_REQUEST["login"]);
-		$fresh = $_REQUEST["fresh"] == "1";
+		$login = clean($_REQUEST["login"]);
+		$fresh = clean($_REQUEST["fresh"]) == "1";
 
-		$result = $this->dbh->query("SELECT id FROM ttrss_users WHERE login = '$login'");
+		$sth = $this->pdo->prepare("SELECT id FROM ttrss_users WHERE login = ?");
+		$sth->execute([$login]);
 
-		if ($this->dbh->num_rows($result) == 1) {
-			$uid = $this->dbh->fetch_result($result, 0, "id");
+		if ($row = $sth->fetch()) {
+			$uid = $row["id"];
 
-			print getGlobalUnread($uid);
+			print Feeds::getGlobalUnread($uid);
 
 			if ($fresh) {
 				print ";";
-				print getFeedArticles(-3, false, true, $uid);
+				print Feeds::getFeedArticles(-3, false, true, $uid);
 			}
 
 		} else {
 			print "-1;User not found";
 		}
-
 	}
 
 	function getProfiles() {
-		$login = $this->dbh->escape_string($_REQUEST["login"]);
+		$login = clean($_REQUEST["login"]);
 
-		$result = $this->dbh->query("SELECT ttrss_settings_profiles.* FROM ttrss_settings_profiles,ttrss_users
-			WHERE ttrss_users.id = ttrss_settings_profiles.owner_uid AND login = '$login' ORDER BY title");
+		$sth = $this->pdo->prepare("SELECT ttrss_settings_profiles.* FROM ttrss_settings_profiles,ttrss_users
+			WHERE ttrss_users.id = ttrss_settings_profiles.owner_uid AND login = ? ORDER BY title");
+		$sth->execute([$login]);
 
 		print "<select dojoType='dijit.form.Select' style='width : 220px; margin : 0px' name='profile'>";
 
 		print "<option value='0'>" . __("Default profile") . "</option>";
 
-		while ($line = $this->dbh->fetch_assoc($result)) {
+		while ($line = $sth->fetch()) {
 			$id = $line["id"];
 			$title = $line["title"];
 
@@ -272,89 +281,25 @@ class Handler_Public extends Handler {
 		print "</select>";
 	}
 
-	function pubsub() {
-		$mode = $this->dbh->escape_string($_REQUEST['hub_mode']);
-		if (!$mode) $mode = $this->dbh->escape_string($_REQUEST['hub.mode']);
-
-		$feed_id = (int) $this->dbh->escape_string($_REQUEST['id']);
-		$feed_url = $this->dbh->escape_string($_REQUEST['hub_topic']);
-
-		if (!$feed_url) $feed_url = $this->dbh->escape_string($_REQUEST['hub.topic']);
-
-		if (!PUBSUBHUBBUB_ENABLED) {
-			header('HTTP/1.0 404 Not Found');
-			echo "404 Not found (Disabled by server)";
-			return;
-		}
-
-		// TODO: implement hub_verifytoken checking
-		// TODO: store requested rel=self or whatever for verification
-		// (may be different from stored feed url) e.g. http://url/ or http://url
-
-		$result = $this->dbh->query("SELECT feed_url FROM ttrss_feeds
-			WHERE id = '$feed_id'");
-
-		if ($this->dbh->num_rows($result) != 0) {
-
-			$check_feed_url = $this->dbh->fetch_result($result, 0, "feed_url");
-
-			// ignore url checking for the time being
-			if ($check_feed_url && (true || $check_feed_url == $feed_url || !$feed_url)) {
-				if ($mode == "subscribe") {
-
-					$this->dbh->query("UPDATE ttrss_feeds SET pubsub_state = 2
-						WHERE id = '$feed_id'");
-
-					print $_REQUEST['hub_challenge'];
-					return;
-
-				} else if ($mode == "unsubscribe") {
-
-					$this->dbh->query("UPDATE ttrss_feeds SET pubsub_state = 0
-						WHERE id = '$feed_id'");
-
-					print $_REQUEST['hub_challenge'];
-					return;
-
-				} else if (!$mode) {
-
-					// Received update ping, schedule feed update.
-					//update_rss_feed($feed_id, true, true);
-
-					$this->dbh->query("UPDATE ttrss_feeds SET
-						last_update_started = '1970-01-01',
-						last_updated = '1970-01-01' WHERE id = '$feed_id'");
-
-				}
-			} else {
-				header('HTTP/1.0 404 Not Found');
-				echo "404 Not found (URL check failed)";
-			}
-		} else {
-			header('HTTP/1.0 404 Not Found');
-			echo "404 Not found (Feed not found)";
-		}
-
-	}
-
 	function logout() {
 		logout_user();
 		header("Location: index.php");
 	}
 
 	function share() {
-		$uuid = $this->dbh->escape_string($_REQUEST["key"]);
+		$uuid = clean($_REQUEST["key"]);
 
-		$result = $this->dbh->query("SELECT ref_id, owner_uid FROM ttrss_user_entries WHERE
-			uuid = '$uuid'");
+		$sth = $this->pdo->prepare("SELECT ref_id, owner_uid FROM ttrss_user_entries WHERE
+			uuid = ?");
+		$sth->execute([$uuid]);
 
-		if ($this->dbh->num_rows($result) != 0) {
+		if ($row = $sth->fetch()) {
 			header("Content-Type: text/html");
 
-			$id = $this->dbh->fetch_result($result, 0, "ref_id");
-			$owner_uid = $this->dbh->fetch_result($result, 0, "owner_uid");
+			$id = $row["ref_id"];
+			$owner_uid = $row["owner_uid"];
 
-			$article = format_article($id, false, true, $owner_uid);
+			$article = Article::format_article($id, false, true, $owner_uid);
 
 			print_r($article['content']);
 
@@ -365,19 +310,19 @@ class Handler_Public extends Handler {
 	}
 
 	function rss() {
-		$feed = $this->dbh->escape_string($_REQUEST["id"]);
-		$key = $this->dbh->escape_string($_REQUEST["key"]);
-		$is_cat = sql_bool_to_bool($_REQUEST["is_cat"]);
-		$limit = (int)$this->dbh->escape_string($_REQUEST["limit"]);
-		$offset = (int)$this->dbh->escape_string($_REQUEST["offset"]);
+		$feed = clean($_REQUEST["id"]);
+		$key = clean($_REQUEST["key"]);
+		$is_cat = clean($_REQUEST["is_cat"]);
+		$limit = (int)clean($_REQUEST["limit"]);
+		$offset = (int)clean($_REQUEST["offset"]);
 
-		$search = $this->dbh->escape_string($_REQUEST["q"]);
-		$search_mode = $this->dbh->escape_string($_REQUEST["smode"]);
-		$view_mode = $this->dbh->escape_string($_REQUEST["view-mode"]);
-		$order = $this->dbh->escape_string($_REQUEST["order"]);
+		$search = clean($_REQUEST["q"]);
+		$view_mode = clean($_REQUEST["view-mode"]);
+		$order = clean($_REQUEST["order"]);
+		$start_ts = clean($_REQUEST["ts"]);
 
-		$format = $this->dbh->escape_string($_REQUEST['format']);
-		$orig_guid = sql_bool_to_bool($_REQUEST["orig_guid"]);
+		$format = clean($_REQUEST['format']);
+		$orig_guid = clean($_REQUEST["orig_guid"]);
 
 		if (!$format) $format = 'atom';
 
@@ -388,33 +333,34 @@ class Handler_Public extends Handler {
 		$owner_id = false;
 
 		if ($key) {
-			$result = $this->dbh->query("SELECT owner_uid FROM
-				ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
+			$sth = $this->pdo->prepare("SELECT owner_uid FROM
+				ttrss_access_keys WHERE access_key = ? AND feed_id = ?");
+			$sth->execute([$key, $feed]);
 
-			if ($this->dbh->num_rows($result) == 1)
-				$owner_id = $this->dbh->fetch_result($result, 0, "owner_uid");
+			if ($row = $sth->fetch())
+				$owner_id = $row["owner_uid"];
 		}
 
 		if ($owner_id) {
 			$this->generate_syndicated_feed($owner_id, $feed, $is_cat, $limit,
-				$offset, $search, $search_mode, $view_mode, $format, $order, $orig_guid);
+				$offset, $search, $view_mode, $format, $order, $orig_guid, $start_ts);
 		} else {
 			header('HTTP/1.1 403 Forbidden');
 		}
 	}
 
 	function updateTask() {
-		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_UPDATE_TASK, "hook_update_task", $op);
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_UPDATE_TASK, "hook_update_task", false);
 	}
 
 	function housekeepingTask() {
-		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", $op);
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", false);
 	}
 
 	function globalUpdateFeeds() {
-		RPC::updaterandomfeed_real($this->dbh);
+		RPC::updaterandomfeed_real();
 
-		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_UPDATE_TASK, "hook_update_task", $op);
+		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_UPDATE_TASK, "hook_update_task", false);
 	}
 
 	function sharepopup() {
@@ -427,22 +373,22 @@ class Handler_Public extends Handler {
 		<link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
 		<link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">";
 
-		stylesheet_tag("css/utility.css");
-		javascript_tag("lib/prototype.js");
-		javascript_tag("lib/scriptaculous/scriptaculous.js?load=effects,dragdrop,controls");
+		echo stylesheet_tag("css/default.css");
+		echo javascript_tag("lib/prototype.js");
+		echo javascript_tag("lib/scriptaculous/scriptaculous.js?load=effects,controls");
 		print "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
-			</head><body id='sharepopup'>";
+			</head><body id='sharepopup' class='ttrss_utility'>";
 
-		$action = $_REQUEST["action"];
+		$action = clean($_REQUEST["action"]);
 
 		if ($_SESSION["uid"]) {
 
 			if ($action == 'share') {
 
-				$title = $this->dbh->escape_string(strip_tags($_REQUEST["title"]));
-				$url = $this->dbh->escape_string(strip_tags($_REQUEST["url"]));
-				$content = $this->dbh->escape_string(strip_tags($_REQUEST["content"]));
-				$labels = $this->dbh->escape_string(strip_tags($_REQUEST["labels"]));
+				$title = strip_tags(clean($_REQUEST["title"]));
+				$url = strip_tags(clean($_REQUEST["url"]));
+				$content = strip_tags(clean($_REQUEST["content"]));
+				$labels = strip_tags(clean($_REQUEST["labels"]));
 
 				Article::create_published_article($title, $url, $content, $labels,
 					$_SESSION["uid"]);
@@ -452,8 +398,8 @@ class Handler_Public extends Handler {
 				print "</script>";
 
 			} else {
-				$title = htmlspecialchars($_REQUEST["title"]);
-				$url = htmlspecialchars($_REQUEST["url"]);
+				$title = htmlspecialchars(clean($_REQUEST["title"]));
+				$url = htmlspecialchars(clean($_REQUEST["url"]));
 
 				?>
 
@@ -495,7 +441,7 @@ class Handler_Public extends Handler {
 					</div>
 					<button type="submit"><?php echo __('Share') ?></button>
 					<button onclick="return window.close()"><?php echo __('Cancel') ?></button>
-					</div>
+					</td>
 
 				</form>
 				</td></tr></table>
@@ -540,9 +486,9 @@ class Handler_Public extends Handler {
 	function login() {
 		if (!SINGLE_USER_MODE) {
 
-			$login = $this->dbh->escape_string($_POST["login"]);
-			$password = $_POST["password"];
-			$remember_me = $_POST["remember_me"];
+			$login = clean($_POST["login"]);
+			$password = clean($_POST["password"]);
+			$remember_me = clean($_POST["remember_me"]);
 
 			if ($remember_me) {
 				session_set_cookie_params(SESSION_COOKIE_LIFETIME);
@@ -550,8 +496,6 @@ class Handler_Public extends Handler {
 				session_set_cookie_params(0);
 			}
 
-			@session_start();
-
 			if (authenticate_user($login, $password)) {
 				$_POST["password"] = "";
 
@@ -560,32 +504,51 @@ class Handler_Public extends Handler {
 				}
 
 				$_SESSION["ref_schema_version"] = get_schema_version(true);
-				$_SESSION["bw_limit"] = !!$_POST["bw_limit"];
+				$_SESSION["bw_limit"] = !!clean($_POST["bw_limit"]);
 
-				if ($_POST["profile"]) {
+				if (clean($_POST["profile"])) {
 
-					$profile = $this->dbh->escape_string($_POST["profile"]);
+					$profile = clean($_POST["profile"]);
 
-					$result = $this->dbh->query("SELECT id FROM ttrss_settings_profiles
-						WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
+					$sth = $this->pdo->prepare("SELECT id FROM ttrss_settings_profiles
+						WHERE id = ? AND owner_uid = ?");
+					$sth->execute([$profile, $_SESSION['uid']]);
 
-					if ($this->dbh->num_rows($result) != 0) {
+					if ($sth->fetch()) {
 						$_SESSION["profile"] = $profile;
 					}
 				}
 			} else {
-				$_SESSION["login_error_msg"] = __("Incorrect username or password");
-				user_error("Failed login attempt from {$_SERVER['REMOTE_ADDR']}", E_USER_WARNING);
+
+				// start an empty session to deliver login error message
+				@session_start();
+
+				if (!isset($_SESSION["login_error_msg"]))
+					$_SESSION["login_error_msg"] = __("Incorrect username or password");
+
+				user_error("Failed login attempt for $login from {$_SERVER['REMOTE_ADDR']}", E_USER_WARNING);
 			}
 
-			if ($_REQUEST['return']) {
-				header("Location: " . $_REQUEST['return']);
+			if (clean($_REQUEST['return'])) {
+				header("Location: " . clean($_REQUEST['return']));
 			} else {
-				header("Location: " . SELF_URL_PATH);
+				header("Location: " . get_self_url_prefix());
 			}
 		}
 	}
 
+	/* function subtest() {
+		header("Content-type: text/plain; charset=utf-8");
+
+		$url = clean($_REQUEST["url"]);
+
+		print "$url\n\n";
+
+
+		print_r(get_feeds_from_html($url, fetch_file_contents($url)));
+
+	} */
+
 	function subscribe() {
 		if (SINGLE_USER_MODE) {
 			login_sequence();
@@ -593,24 +556,25 @@ class Handler_Public extends Handler {
 
 		if ($_SESSION["uid"]) {
 
-			$feed_url = $this->dbh->escape_string(trim($_REQUEST["feed_url"]));
+			$feed_url = trim(clean($_REQUEST["feed_url"]));
 
 			header('Content-Type: text/html; charset=utf-8');
 			print "<html>
 				<head>
-					<title>Tiny Tiny RSS</title>
-					<link rel=\"stylesheet\" type=\"text/css\" href=\"css/utility.css\">
-					<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
-					<link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
-					<link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">
+					<title>Tiny Tiny RSS</title>";
+			print stylesheet_tag("css/default.css");
+
+            print "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
+                <link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
+                <link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">
 
 				</head>
-				<body>
+				<body class='claro ttrss_utility'>
 				<img class=\"floatingLogo\" src=\"images/logo_small.png\"
 			  		alt=\"Tiny Tiny RSS\"/>
 					<h1>".__("Subscribe to feed...")."</h1><div class='content'>";
 
-			$rc = subscribe_to_feed($feed_url);
+			$rc = Feeds::subscribe_to_feed($feed_url);
 
 			switch ($rc['code']) {
 			case 0:
@@ -658,10 +622,12 @@ class Handler_Public extends Handler {
 			$tt_uri = get_self_url_prefix();
 
 			if ($rc['code'] <= 2){
-				$result = $this->dbh->query("SELECT id FROM ttrss_feeds WHERE
-					feed_url = '$feed_url' AND owner_uid = " . $_SESSION["uid"]);
+			    $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
+					feed_url = ? AND owner_uid = ?");
+			    $sth->execute([$feed_url, $_SESSION['uid']]);
+			    $row = $sth->fetch();
 
-				$feed_id = $this->dbh->fetch_result($result, 0, "id");
+				$feed_id = $row["id"];
 			} else {
 				$feed_id = 0;
 			}
@@ -688,120 +654,75 @@ class Handler_Public extends Handler {
 		}
 	}
 
-	function subscribe2() {
-		$feed_url = $this->dbh->escape_string(trim($_REQUEST["feed_url"]));
-		$cat_id = $this->dbh->escape_string($_REQUEST["cat_id"]);
-		$from = $this->dbh->escape_string($_REQUEST["from"]);
-		$feed_urls = array();
-
-		/* only read authentication information from POST */
-
-		$auth_login = $this->dbh->escape_string(trim($_POST["auth_login"]));
-		$auth_pass = $this->dbh->escape_string(trim($_POST["auth_pass"]));
-
-		$rc = subscribe_to_feed($feed_url, $cat_id, $auth_login, $auth_pass);
-
-		switch ($rc) {
-		case 1:
-			print_notice(T_sprintf("Subscribed to <b>%s</b>.", $feed_url));
-			break;
-		case 2:
-			print_error(T_sprintf("Could not subscribe to <b>%s</b>.", $feed_url));
-			break;
-		case 3:
-			print_error(T_sprintf("No feeds found in <b>%s</b>.", $feed_url));
-			break;
-		case 0:
-			print_warning(T_sprintf("Already subscribed to <b>%s</b>.", $feed_url));
-			break;
-		case 4:
-			print_notice(__("Multiple feed URLs found."));
- 			$contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
-			if (is_html($contents)) {
-				$feed_urls = get_feeds_from_html($url, $contents);
-			}
-			break;
-		case 5:
-			print_error(T_sprintf("Could not subscribe to <b>%s</b>.<br>Can't download the Feed URL.", $feed_url));
-			break;
-		}
-
-		if ($feed_urls) {
-			print "<form action=\"backend.php\">";
-			print "<input type=\"hidden\" name=\"op\" value=\"pref-feeds\">";
-			print "<input type=\"hidden\" name=\"quiet\" value=\"1\">";
-			print "<input type=\"hidden\" name=\"method\" value=\"add\">";
-
-			print "<select name=\"feed_url\">";
-
-			foreach ($feed_urls as $url => $name) {
-				$url = htmlspecialchars($url);
-				$name = htmlspecialchars($name);
-				print "<option value=\"$url\">$name</option>";
-			}
-
-			print "<input type=\"submit\" value=\"".__("Subscribe to selected feed")."\">";
-			print "</form>";
-		}
-
-		$tp_uri = get_self_url_prefix() . "/prefs.php";
-		$tt_uri = get_self_url_prefix();
-
-		if ($rc <= 2){
-			$result = $this->dbh->query("SELECT id FROM ttrss_feeds WHERE
-				feed_url = '$feed_url' AND owner_uid = " . $_SESSION["uid"]);
-
-			$feed_id = $this->dbh->fetch_result($result, 0, "id");
-		} else {
-			$feed_id = 0;
-		}
-
-		print "<p>";
-
-		if ($feed_id) {
-			print "<form method=\"GET\" style='display: inline'
-				action=\"$tp_uri\">
-				<input type=\"hidden\" name=\"tab\" value=\"feedConfig\">
-				<input type=\"hidden\" name=\"method\" value=\"editFeed\">
-				<input type=\"hidden\" name=\"methodparam\" value=\"$feed_id\">
-				<input type=\"submit\" value=\"".__("Edit subscription options")."\">
-				</form>";
-		}
-
-		print "<form style='display: inline' method=\"GET\" action=\"$tt_uri\">
-			<input type=\"submit\" value=\"".__("Return to Tiny Tiny RSS")."\">
-			</form></p>";
-
-		print "</body></html>";
-	}
-
 	function index() {
 		header("Content-Type: text/plain");
-		print json_encode(array("error" => array("code" => 7)));
+		print error_json(13);
 	}
 
 	function forgotpass() {
 		startup_gettext();
 
+		@$hash = clean($_REQUEST["hash"]);
+
 		header('Content-Type: text/html; charset=utf-8');
 		print "<html><head><title>Tiny Tiny RSS</title>
 		<link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
 		<link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">";
 
-		stylesheet_tag("css/utility.css");
-		javascript_tag("lib/prototype.js");
+		echo stylesheet_tag("lib/dijit/themes/claro/claro.css");
+		echo stylesheet_tag("css/default.css");
+		echo javascript_tag("lib/prototype.js");
 
 		print "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
-			</head><body id='forgotpass'>";
+			</head><body class='claro ttrss_utility'>";
 
 		print '<div class="floatingLogo"><img src="images/logo_small.png"></div>';
 		print "<h1>".__("Password recovery")."</h1>";
 		print "<div class='content'>";
 
-		@$method = $_POST['method'];
+		@$method = clean($_POST['method']);
+
+		if ($hash) {
+			$login = clean($_REQUEST["login"]);
+
+			if ($login) {
+				$sth = $this->pdo->prepare("SELECT id, resetpass_token FROM ttrss_users
+					WHERE login = ?");
+				$sth->execute([$login]);
+
+				if ($row = $sth->fetch()) {
+					$id = $row["id"];
+					$resetpass_token_full = $row["resetpass_token"];
+					list($timestamp, $resetpass_token) = explode(":", $resetpass_token_full);
 
-		if (!$method) {
-			print_notice(__("You will need to provide valid account name and email. New password will be sent on your email address."));
+					if ($timestamp && $resetpass_token &&
+						$timestamp >= time() - 15*60*60 &&
+						$resetpass_token == $hash) {
+
+							$sth = $this->pdo->prepare("UPDATE ttrss_users SET resetpass_token = NULL
+								WHERE id = ?");
+							$sth->execute([$id]);
+
+							Pref_Users::resetUserPassword($id, true);
+
+							print "<p>"."Completed."."</p>";
+
+					} else {
+						print_error("Some of the information provided is missing or incorrect.");
+					}
+				} else {
+					print_error("Some of the information provided is missing or incorrect.");
+				}
+			} else {
+				print_error("Some of the information provided is missing or incorrect.");
+			}
+
+			print "<form method=\"GET\" action=\"index.php\">
+				<input type=\"submit\" value=\"".__("Return to Tiny Tiny RSS")."\">
+				</form>";
+
+		} else if (!$method) {
+			print_notice(__("You will need to provide valid account name and email. A password reset link will be sent to your email address."));
 
 			print "<form method='POST' action='public.php'>";
 			print "<input type='hidden' name='method' value='do'>";
@@ -809,17 +730,17 @@ class Handler_Public extends Handler {
 
 			print "<fieldset>";
 			print "<label>".__("Login:")."</label>";
-			print "<input type='text' name='login' value='' required>";
+			print "<input class='input input-text' type='text' name='login' value='' required>";
 			print "</fieldset>";
 
 			print "<fieldset>";
 			print "<label>".__("Email:")."</label>";
-			print "<input type='email' name='email' value='' required>";
+			print "<input class='input input-text' type='email' name='email' value='' required>";
 			print "</fieldset>";
 
 			print "<fieldset>";
 			print "<label>".__("How much is two plus two:")."</label>";
-			print "<input type='text' name='test' value='' required>";
+			print "<input class='input input-text' type='text' name='test' value='' required>";
 			print "</fieldset>";
 
 			print "<p/>";
@@ -828,9 +749,9 @@ class Handler_Public extends Handler {
 			print "</form>";
 		} else if ($method == 'do') {
 
-			$login = $this->dbh->escape_string($_POST["login"]);
-			$email = $this->dbh->escape_string($_POST["email"]);
-			$test = $this->dbh->escape_string($_POST["test"]);
+			$login = clean($_POST["login"]);
+			$email = clean($_POST["email"]);
+			$test = clean($_POST["test"]);
 
 			if (($test != 4 && $test != 'four') || !$email || !$login) {
 				print_error(__('Some of the required form parameters are missing or incorrect.'));
@@ -842,17 +763,60 @@ class Handler_Public extends Handler {
 
 			} else {
 
-				$result = $this->dbh->query("SELECT id FROM ttrss_users
-					WHERE login = '$login' AND email = '$email'");
+				print_notice("Password reset instructions are being sent to your email address.");
+
+				$sth = $this->pdo->prepare("SELECT id FROM ttrss_users
+					WHERE login = ? AND email = ?");
+				$sth->execute([$login, $email]);
+
+				if ($row = $sth->fetch()) {
+					$id = $row["id"];
+
+					if ($id) {
+						$resetpass_token = sha1(get_random_bytes(128));
+						$resetpass_link = get_self_url_prefix() . "/public.php?op=forgotpass&hash=" . $resetpass_token .
+							"&login=" . urlencode($login);
+
+						require_once 'classes/ttrssmailer.php';
+						require_once "lib/MiniTemplator.class.php";
+
+						$tpl = new MiniTemplator;
 
-				if ($this->dbh->num_rows($result) != 0) {
-					$id = $this->dbh->fetch_result($result, 0, "id");
+						$tpl->readTemplateFromFile("templates/resetpass_link_template.txt");
 
-					Pref_Users::resetUserPassword($id, false);
+						$tpl->setVariable('LOGIN', $login);
+						$tpl->setVariable('RESETPASS_LINK', $resetpass_link);
 
-					print "<p>";
+						$tpl->addBlock('message');
 
-					print "<p>"."Completed."."</p>";
+						$message = "";
+
+						$tpl->generateOutputToString($message);
+
+						$mail = new ttrssMailer();
+
+						$rc = $mail->quickMail($email, $login,
+							__("[tt-rss] Password reset request"),
+							$message, false);
+
+						if (!$rc) print_error($mail->ErrorInfo);
+
+						$resetpass_token_full = time() . ":" . $resetpass_token;
+
+						$sth = $this->pdo->prepare("UPDATE ttrss_users
+							SET resetpass_token = ?
+							WHERE login = ? AND email = ?");
+
+						$sth->execute([$resetpass_token_full, $login, $email]);
+
+						//Pref_Users::resetUserPassword($id, false);
+
+						print "<p>";
+
+						print "<p>"."Completed."."</p>";
+					} else {
+						print_error("User ID not found.");
+					}
 
 					print "<form method=\"GET\" action=\"index.php\">
 						<input type=\"submit\" value=\"".__("Return to Tiny Tiny RSS")."\">
@@ -890,7 +854,7 @@ class Handler_Public extends Handler {
 			<head>
 			<title>Database Updater</title>
 			<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
-			<link rel="stylesheet" type="text/css" href="css/utility.css"/>
+			<link rel="stylesheet" type="text/css" href="css/default.css"/>
 			<link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\">
 			<link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">
 			</head>
@@ -898,7 +862,7 @@ class Handler_Public extends Handler {
 				span.ok { color : #009000; font-weight : bold; }
 				span.err { color : #ff0000; font-weight : bold; }
 			</style>
-		<body>
+		<body class="claro ttrss_utility">
 			<script type='text/javascript'>
 			function confirmOP() {
 				return confirm("Update the database?");
@@ -912,8 +876,8 @@ class Handler_Public extends Handler {
 			<div class="content">
 
 			<?php
-				@$op = $_REQUEST["subop"];
-				$updater = new DbUpdater(Db::get(), DB_TYPE, SCHEMA_VERSION);
+				@$op = clean($_REQUEST["subop"]);
+				$updater = new DbUpdater(Db::pdo(), DB_TYPE, SCHEMA_VERSION);
 
 				if ($op == "performupdate") {
 					if ($updater->isUpdateRequired()) {
@@ -927,7 +891,7 @@ class Handler_Public extends Handler {
 						for ($i = $updater->getSchemaVersion() + 1; $i <= SCHEMA_VERSION; $i++) {
 							print "<li>Performing update up to version $i...";
 
-							$result = $updater->performUpdateTo($i);
+							$result = $updater->performUpdateTo($i, true);
 
 							if (!$result) {
 								print "<span class='err'>FAILED!</span></li></ul>";
@@ -937,7 +901,7 @@ class Handler_Public extends Handler {
 								<input type=\"submit\" value=\"".__("Return to Tiny Tiny RSS")."\">
 								</form>";
 
-								break;
+								return;
 							} else {
 								print "<span class='ok'>OK!</span></li>";
 							}
@@ -963,10 +927,10 @@ class Handler_Public extends Handler {
 
 						print "<h2>Database update required</h2>";
 
-						print "<h3>";
-						printf("Your Tiny Tiny RSS database needs update to the latest version: %d to %d.",
-							$updater->getSchemaVersion(), SCHEMA_VERSION);
-						print "</h3>";
+						print_notice("<h4>".
+						sprintf("Your Tiny Tiny RSS database needs update to the latest version: %d to %d.",
+							$updater->getSchemaVersion(), SCHEMA_VERSION).
+						"</h4>");
 
 						print_warning("Please backup your database before proceeding.");
 
@@ -993,5 +957,65 @@ class Handler_Public extends Handler {
 		<?php
 	}
 
+	function cached_url() {
+		@$req_filename = basename($_GET['hash']);
+
+		// we don't need an extension to find the file, hash is a complete URL
+		$hash = preg_replace("/\.[^\.]*$/", "", $req_filename);
+
+		if ($hash) {
+
+			$filename = CACHE_DIR . '/images/' . $hash;
+
+			if (file_exists($filename)) {
+				header("Content-Disposition: inline; filename=\"$req_filename\"");
+
+				send_local_file($filename);
+
+			} else {
+				header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
+				echo "File not found.";
+			}
+		}
+	}
+
+	private function make_article_tag_uri($id, $timestamp) {
+
+		$timestamp = date("Y-m-d", strtotime($timestamp));
+
+		return "tag:" . parse_url(get_self_url_prefix(), PHP_URL_HOST) . ",$timestamp:/$id";
+	}
+
+	// this should be used very carefully because this endpoint is exposed to unauthenticated users
+	// plugin data is not loaded because there's no user context and owner_uid/session may or may not be available
+	// in general, don't do anything user-related in here and do not modify $_SESSION
+	public function pluginhandler() {
+		$host = new PluginHost();
+
+		$plugin = basename(clean($_REQUEST["plugin"]));
+		$method = clean($_REQUEST["pmethod"]);
+
+		$host->load($plugin, PluginHost::KIND_USER, 0);
+		$host->load_data();
+
+		$pclass = $host->get_plugin($plugin);
+
+		if ($pclass) {
+			if (method_exists($pclass, $method)) {
+				if ($pclass->is_public_method($method)) {
+					$pclass->$method();
+				} else {
+					header("Content-Type: text/json");
+					print error_json(6);
+				}
+			} else {
+				header("Content-Type: text/json");
+				print error_json(13);
+			}
+		} else {
+			header("Content-Type: text/json");
+			print error_json(14);
+		}
+	}
 }
 ?>