codysnider / tt-rss

classes/handler/public.php

<?php
class Handler_Public extends Handler {

    private function generate_syndicated_feed($owner_uid, $feed, $is_cat,
        $limit, $offset, $search,
        $view_mode = false, $format = 'atom', $order = false, $orig_guid = false, $start_ts = false) {

        require_once "lib/MiniTemplator.class.php";

        $note_style = "background-color : #fff7d5;
			border-width : 1px; ".
            "padding : 5px; border-style : dashed; border-color : #e7d796;".
            "margin-bottom : 1em; color : #9a8c59;";

        if (!$limit) {
            $limit = 60;
        }

        $date_sort_field = "date_entered DESC, updated DESC";

        if ($feed == -2 && !$is_cat) {
            $date_sort_field = "last_published DESC";
        } else if ($feed == -1 && !$is_cat) {
            $date_sort_field = "last_marked DESC";
        }

        switch ($order) {
        case "title":
            $date_sort_field = "ttrss_entries.title, date_entered, updated";
            break;
        case "date_reverse":
            $date_sort_field = "date_entered, updated";
            break;
        case "feed_dates":
            $date_sort_field = "updated DESC";
            break;
        }

        $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), $params);
            }

        } else {
            $qfh_ret = Feeds::queryFeedHeadlines($params);
        }

        $result = $qfh_ret[0];
        $feed_title = htmlspecialchars($qfh_ret[1]);
        $feed_site_url = $qfh_ret[2];
        /* $last_error = $qfh_ret[3]; */

        $feed_self_url = get_self_url_prefix().
            "/public.php?op=rss&id=$feed&key=".
            Feeds::get_feed_access_key($feed, false, $owner_uid);

        if (!$feed_site_url) {
            $feed_site_url = get_self_url_prefix();
        }

        if ($format == 'atom') {
            $tpl = new MiniTemplator;

            $tpl->readTemplateFromFile("templates/generated_feed.txt");

            $tpl->setVariable('FEED_TITLE', $feed_title, true);
            $tpl->setVariable('VERSION', get_version(), true);
            $tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url), true);

            $tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()), true);
            while ($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'] : $this->make_article_tag_uri($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,
                    $feed_site_url, false, $line["id"]);

                if ($line['note']) {
                    $content = "<div style=\"$note_style\">Article note: ".$line['note']."</div>".
                        $content;
                    $tpl->setVariable('ARTICLE_NOTE', htmlspecialchars($line['note']), true);
                }

                $tpl->setVariable('ARTICLE_CONTENT', $content, true);

                $tpl->setVariable('ARTICLE_UPDATED_ATOM',
                    date('c', strtotime($line["updated"])), true);
                $tpl->setVariable('ARTICLE_UPDATED_RFC822',
                    date(DATE_RFC822, strtotime($line["updated"])), true);

                $tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']), 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);

                $tags = Article::get_article_tags($line["id"], $owner_uid);

                foreach ($tags as $tag) {
                    $tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag), true);
                    $tpl->addBlock('category');
                }

                $enclosures = Article::get_article_enclosures($line["id"]);

                if (count($enclosures) > 0) {
                    foreach ($enclosures as $e) {
                        $type = htmlspecialchars($e['content_type']);
                        $url = htmlspecialchars($e['content_url']);
                        $length = $e['duration'] ? $e['duration'] : 1;

                        $tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url, true);
                        $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type, true);
                        $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', $length, true);

                        $tpl->addBlock('enclosure');
                    }
                } else {
                    $tpl->setVariable('ARTICLE_ENCLOSURE_URL', null, true);
                    $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', null, true);
                    $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', null, true);
                }

                list ($og_image, $og_stream) = Article::get_article_image($enclosures, $line['content'], $feed_site_url);

                $tpl->setVariable('ARTICLE_OG_IMAGE', $og_image, true);

                $tpl->addBlock('entry');
            }

            $tmp = "";

            $tpl->addBlock('feed');
            $tpl->generateOutputToString($tmp);

            if (@!clean($_REQUEST["noxml"])) {
                header("Content-Type: text/xml; charset=utf-8");
            } else {
                header("Content-Type: text/plain; charset=utf-8");
            }

            print $tmp;
        } else if ($format == 'json') {

            $feed = array();

            $feed['title'] = $feed_title;
            $feed['feed_url'] = $feed_self_url;

            $feed['self_url'] = get_self_url_prefix();

            $feed['articles'] = array();

            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, $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'];
                }

                $tags = Article::get_article_tags($line["id"], $owner_uid);

                if (count($tags) > 0) {
                    $article['tags'] = array();

                    foreach ($tags as $tag) {
                        array_push($article['tags'], $tag);
                    }
                }

                $enclosures = Article::get_article_enclosures($line["id"]);

                if (count($enclosures) > 0) {
                    $article['enclosures'] = array();

                    foreach ($enclosures as $e) {
                        $type = $e['content_type'];
                        $url = $e['content_url'];
                        $length = $e['duration'];

                        array_push($article['enclosures'], array("url" => $url, "type" => $type, "length" => $length));
                    }
                }

                array_push($feed['articles'], $article);
            }

            header("Content-Type: text/json; charset=utf-8");
            print json_encode($feed);

        } else {
            header("Content-Type: text/plain; charset=utf-8");
            print json_encode(array("error" => array("message" => "Unknown format")));
        }
    }

    public function getUnread() {
        $login = clean($_REQUEST["login"]);
        $fresh = clean($_REQUEST["fresh"]) == "1";

        $sth = $this->pdo->prepare("SELECT id FROM ttrss_users WHERE login = ?");
        $sth->execute([$login]);

        if ($row = $sth->fetch()) {
            $uid = $row["id"];

            print Feeds::getGlobalUnread($uid);

            if ($fresh) {
                print ";";
                print Feeds::getFeedArticles(-3, false, true, $uid);
            }

        } else {
            print "-1;User not found";
        }
    }

    public function getProfiles() {
        $login = clean($_REQUEST["login"]);
        $rv = [];

        if ($login) {
            $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]);

            $rv = [["value" => 0, "label" => __("Default profile")]];

            while ($line = $sth->fetch()) {
                $id = $line["id"];
                $title = $line["title"];

                array_push($rv, ["label" => $title, "value" => $id]);
            }
        }

        print json_encode($rv);
    }

    public function logout() {
        logout_user();
        header("Location: index.php");
    }

    public function share() {
        $uuid = clean($_REQUEST["key"]);

        if ($uuid) {
            $sth = $this->pdo->prepare("SELECT ref_id, owner_uid
						FROM ttrss_user_entries WHERE uuid = ?");
            $sth->execute([$uuid]);

            if ($row = $sth->fetch()) {
                header("Content-Type: text/html");

                $id = $row["ref_id"];
                $owner_uid = $row["owner_uid"];

                print $this->format_article($id, $owner_uid);

                return;
            }
        }

        header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
        print "Article not found.";
    }

    private function format_article($id, $owner_uid) {

        $pdo = Db::pdo();

        $sth = $pdo->prepare("SELECT id,title,link,content,feed_id,comments,int_id,lang,
			".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
			(SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
			(SELECT title FROM ttrss_feeds WHERE id = feed_id) as feed_title,
			(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) as hide_images,
			(SELECT always_display_enclosures FROM ttrss_feeds WHERE id = feed_id) as always_display_enclosures,
			num_comments,
			tag_cache,
			author,
			guid,
			orig_feed_id,
			note
			FROM ttrss_entries,ttrss_user_entries
			WHERE	id = ? AND ref_id = id AND owner_uid = ?");
        $sth->execute([$id, $owner_uid]);

        $rv = '';

        if ($line = $sth->fetch()) {

            $line["tags"] = Article::get_article_tags($id, $owner_uid, $line["tag_cache"]);
            unset($line["tag_cache"]);

            $line["content"] = sanitize($line["content"],
                $line['hide_images'],
                $owner_uid, $line["site_url"], false, $line["id"]);

            foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE) as $p) {
                $line = $p->hook_render_article($line);
            }

            $line['content'] = DiskCache::rewriteUrls($line['content']);

            $enclosures = Article::get_article_enclosures($line["id"]);

            header("Content-Type: text/html");

            $rv .= "<!DOCTYPE html>
                    <html><head>
                    <meta http-equiv='Content-Type' content='text/html; charset=utf-8'/>
                    <title>".$line["title"]."</title>".
                    stylesheet_tag("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'>";

            $rv .= "<meta property='og:title' content=\"".htmlspecialchars(html_entity_decode($line["title"], ENT_NOQUOTES | ENT_HTML401))."\"/>\n";
            $rv .= "<meta property='og:description' content=\"".
                htmlspecialchars(
                    truncate_string(
                        preg_replace("/[\r\n\t]/", "",
                            preg_replace("/ {1,}/", " ",
                                strip_tags(html_entity_decode($line["content"], ENT_NOQUOTES | ENT_HTML401))
                            )
                    ), 500, "...")
                )."\"/>\n";

            $rv .= "</head>";

            list ($og_image, $og_stream) = Article::get_article_image($enclosures, $line['content'], $line["site_url"]);

            if ($og_image) {
                $rv .= "<meta property='og:image' content=\"".htmlspecialchars($og_image)."\"/>";
            }

            $rv .= "<body class='flat ttrss_utility ttrss_zoom'>";
            $rv .= "<div class='container'>";

            if ($line["link"]) {
                $rv .= "<h1><a target='_blank' rel='noopener noreferrer'
					title=\"".htmlspecialchars($line['title'])."\"
					href=\"" .htmlspecialchars($line["link"])."\">".$line["title"]."</a></h1>";
            } else {
                $rv .= "<h1>".$line["title"]."</h1>";
            }

            $rv .= "<div class='content post'>";

            /* header */

            $rv .= "<div class='header'>";
            $rv .= "<div class='row'>"; # row

            //$entry_author = $line["author"] ? " - " . $line["author"] : "";
            $parsed_updated = make_local_datetime($line["updated"], true,
                $owner_uid, true);

            $rv .= "<div>".$line['author']."</div>";
            $rv .= "<div>$parsed_updated</div>";

            $rv .= "</div>"; # row

            $rv .= "</div>"; # header

            /* content */

            $lang = $line['lang'] ? $line['lang'] : "en";
            $rv .= "<div class='content' lang='$lang'>";

            /* content body */

            $rv .= $line["content"];

            $rv .= Article::format_article_enclosures($id,
                $line["always_display_enclosures"],
                $line["content"],
                $line["hide_images"]);

            $rv .= "</div>"; # content

            $rv .= "</div>"; # post

        }

        foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_FORMAT_ARTICLE) as $p) {
            $rv = $p->hook_format_article($rv, $line, true);
        }

        return $rv;

    }

    public function rss() {
        $feed = clean($_REQUEST["id"]);
        $key = clean($_REQUEST["key"]);
        $is_cat = clean($_REQUEST["is_cat"]);
        $limit = (int) clean($_REQUEST["limit"]);
        $offset = (int) clean($_REQUEST["offset"]);

        $search = clean($_REQUEST["q"]);
        $view_mode = clean($_REQUEST["view-mode"]);
        $order = clean($_REQUEST["order"]);
        $start_ts = clean($_REQUEST["ts"]);

        $format = clean($_REQUEST['format']);
        $orig_guid = clean($_REQUEST["orig_guid"]);

        if (!$format) {
            $format = 'atom';
        }

        if (SINGLE_USER_MODE) {
            authenticate_user("admin", null);
        }

        $owner_id = false;

        if ($key) {
            $sth = $this->pdo->prepare("SELECT owner_uid FROM
				ttrss_access_keys WHERE access_key = ? AND feed_id = ?");
            $sth->execute([$key, $feed]);

            if ($row = $sth->fetch()) {
                            $owner_id = $row["owner_uid"];
            }
        }

        if ($owner_id) {
            $this->generate_syndicated_feed($owner_id, $feed, $is_cat, $limit,
                $offset, $search, $view_mode, $format, $order, $orig_guid, $start_ts);
        } else {
            header('HTTP/1.1 403 Forbidden');
        }
    }

    public function updateTask() {
        PluginHost::getInstance()->run_hooks(PluginHost::HOOK_UPDATE_TASK, "hook_update_task", false);
    }

    public function housekeepingTask() {
        PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", false);
    }

    public function globalUpdateFeeds() {
        RPC::updaterandomfeed_real();

        PluginHost::getInstance()->run_hooks(PluginHost::HOOK_UPDATE_TASK, "hook_update_task", false);
    }

    public function sharepopup() {
        if (SINGLE_USER_MODE) {
            login_sequence();
        }

        header('Content-Type: text/html; charset=utf-8');
        ?>
		<!DOCTYPE html>
		<html>
		<head>
			<title><?php echo __("Share with Tiny Tiny RSS") ?></title>
			<?php
            echo stylesheet_tag("css/default.css");
            echo javascript_tag("lib/prototype.js");
            echo javascript_tag("lib/dojo/dojo.js");
            echo javascript_tag("lib/dojo/tt-rss-layer.js");
            echo javascript_tag("lib/scriptaculous/scriptaculous.js?load=effects,controls")
            ?>
			<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 class='flat ttrss_utility share_popup'>
		<script type="text/javascript">
			require(['dojo/parser', "dojo/ready", 'dijit/form/Button','dijit/form/CheckBox', 'dijit/form/Form',
				'dijit/form/Select','dijit/form/TextBox','dijit/form/ValidationTextBox'],function(parser, ready){
				ready(function() {
					parser.parse();

					new Ajax.Autocompleter('labels_value', 'labels_choices',
						"backend.php?op=rpc&method=completeLabels",
						{ tokens: ',', paramName: "search" });
				});
			});
		</script>
		<div class="content">

		<?php

        $action = clean($_REQUEST["action"]);

        if ($_SESSION["uid"]) {

            if ($action == 'share') {

                $title = strip_tags(clean($_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"]);

                print "<script type='text/javascript'>";
                print "window.close();";
                print "</script>";

            } else {
                $title = htmlspecialchars(clean($_REQUEST["title"]));
                $url = htmlspecialchars(clean($_REQUEST["url"]));

                ?>
				<form id='share_form' name='share_form'>

					<input type="hidden" name="op" value="sharepopup">
					<input type="hidden" name="action" value="share">

					<fieldset>
						<label><?php echo __("Title:") ?></label>
						<input style='width : 270px' dojoType='dijit.form.TextBox' name='title' value="<?php echo $title ?>">
					</fieldset>

					<fieldset>
						<label><?php echo __("URL:") ?></label>
						<input style='width : 270px' name='url' dojoType='dijit.form.TextBox' value="<?php echo $url ?>">
					</fieldset>

					<fieldset>
						<label><?php echo __("Content:") ?></label>
						<input style='width : 270px' name='content' dojoType='dijit.form.TextBox' value="">
					</fieldset>

					<fieldset>
						<label><?php echo __("Labels:") ?></label>
						<input style='width : 270px' name='labels' dojoType='dijit.form.TextBox' id="labels_value"
						   placeholder='Alpha, Beta, Gamma' value="">
						<div class="autocomplete" id="labels_choices"
							 style="display : block"></div>
					</fieldset>

					<hr/>

					<fieldset>
						<button dojoType='dijit.form.Button' class="alt-primary" type="submit"><?php echo __('Share') ?></button>
						<button dojoType='dijit.form.Button' onclick="return window.close()"><?php echo __('Cancel') ?></button>
						<span class="text-muted small"><?php echo __("Shared article will appear in the Published feed.") ?></span>
					</fieldset>

				</form>
				<?php

            }

        } else {

            $return = urlencode(make_self_url());
            print_error("Not logged in"); ?>

			<form action="public.php?return=<?php echo $return ?>" method="post">

				<input type="hidden" name="op" value="login">

				<fieldset>
					<label><?php echo __("Login:") ?></label>
					<input name="login" id="login" dojoType="dijit.form.TextBox" type="text"
						   onchange="fetchProfiles()" onfocus="fetchProfiles()" onblur="fetchProfiles()"
						   required="1" value="<?php echo $_SESSION["fake_login"] ?>" />
				</fieldset>

				<fieldset>
					<label><?php echo __("Password:") ?></label>

					<input type="password" name="password" required="1"
						   dojoType="dijit.form.TextBox"
						   class="input input-text"
						   value="<?php echo $_SESSION["fake_password"] ?>"/>
				</fieldset>

				<hr/>

				<fieldset>
					<label> </label>

					<button dojoType="dijit.form.Button" type="submit" class="alt-primary"><?php echo __('Log in') ?></button>
				</fieldset>

			</form>
			<?php
        }

        print "</div></body></html>";
    }

    public function login() {
        if (!SINGLE_USER_MODE) {

            $login = clean($_POST["login"]);
            $password = clean($_POST["password"]);
            $remember_me = clean($_POST["remember_me"]);

            if ($remember_me) {
                session_set_cookie_params(SESSION_COOKIE_LIFETIME);
            } else {
                session_set_cookie_params(0);
            }

            if (authenticate_user($login, $password)) {
                $_POST["password"] = "";

                if (get_schema_version() >= 120) {
                    $_SESSION["language"] = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
                }

                $_SESSION["ref_schema_version"] = get_schema_version(true);
                $_SESSION["bw_limit"] = !!clean($_POST["bw_limit"]);

                if (clean($_POST["profile"])) {

                    $profile = (int) clean($_POST["profile"]);

                    $sth = $this->pdo->prepare("SELECT id FROM ttrss_settings_profiles
						WHERE id = ? AND owner_uid = ?");
                    $sth->execute([$profile, $_SESSION['uid']]);

                    if ($sth->fetch()) {
                        $_SESSION["profile"] = $profile;
                        } else {
                        $_SESSION["profile"] = null;
                    }
                }
            } else {

                // 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);
            }

            $return = clean($_REQUEST['return']);

            if ($_REQUEST['return'] && mb_strpos($return, SELF_URL_PATH) === 0) {
                header("Location: ".clean($_REQUEST['return']));
            } else {
                header("Location: ".get_self_url_prefix());
            }
        }
    }

    public function subscribe() {
        if (SINGLE_USER_MODE) {
            login_sequence();
        }

        if ($_SESSION["uid"]) {

            $feed_url = trim(clean($_REQUEST["feed_url"]));

            header('Content-Type: text/html; charset=utf-8');
            ?>
			<!DOCTYPE html>
			<html>
			<head>
				<title>Tiny Tiny RSS</title>
				<?php
                    echo stylesheet_tag("css/default.css");
                    echo javascript_tag("lib/prototype.js");
                    echo javascript_tag("lib/dojo/dojo.js");
                    echo javascript_tag("lib/dojo/tt-rss-layer.js");
                ?>
				<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 class='flat ttrss_utility'>
			<script type="text/javascript">
				require(['dojo/parser', "dojo/ready", 'dijit/form/Button','dijit/form/CheckBox', 'dijit/form/Form',
					'dijit/form/Select','dijit/form/TextBox','dijit/form/ValidationTextBox'],function(parser, ready){
					ready(function() {
						parser.parse();
					});
				});
			</script>
			<div class="container">
			<h1><?php echo __("Subscribe to feed...") ?></h1>
			<div class='content'>
			<?php

            if (!$feed_url) {
                ?>
				<form method="post">
					<input type="hidden" name="op" value="subscribe">
					<fieldset>
						<label>Feed or site URL:</label>
						<input style="width: 300px" dojoType="dijit.form.ValidationTextBox" required="1" name="feed_url">
					</fieldset>

					<button class="alt-primary" dojoType="dijit.form.Button" type="submit">
						<?php echo __("Subscribe") ?>
					</button>

					<a href="index.php"><?php echo __("Return to Tiny Tiny RSS") ?></a>
				</form>
				<?php
            } else {

                $rc = Feeds::subscribe_to_feed($feed_url);
                $feed_urls = false;

                switch ($rc['code']) {
                case 0:
                    print_warning(T_sprintf("Already subscribed to <b>%s</b>.", $feed_url));
                    break;
                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 4:
                    $feed_urls = $rc["feeds"];
                    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='public.php'>";
                    print "<input type='hidden' name='op' value='subscribe'>";

                    print "<fieldset>";
                    print "<label style='display : inline'>".__("Multiple feed URLs found:")."</label>";
                    print "<select name='feed_url' dojoType='dijit.form.Select'>";

                    foreach ($feed_urls as $url => $name) {
                        $url = htmlspecialchars($url);
                        $name = htmlspecialchars($name);

                        print "<option value=\"$url\">$name</option>";
                    }

                    print "</select>";
                    print "</fieldset>";

                    print "<button class='alt-primary' dojoType='dijit.form.Button' type='submit'>".__("Subscribe to selected feed")."</button>";
                    print "<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>";

                    print "</form>";
                }

                $tp_uri = get_self_url_prefix()."/prefs.php";

                if ($rc['code'] <= 2) {
                    $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 = $row["id"];
                } else {
                    $feed_id = 0;
                }

                if ($feed_id) {
                    print "<form method='GET' action=\"$tp_uri\">
					<input type='hidden' name='tab' value='feedConfig'>
					<input type='hidden' name='method' value='editfeed'>
					<input type='hidden' name='methodparam' value='$feed_id'>
					<button dojoType='dijit.form.Button' class='alt-info' type='submit'>".__("Edit subscription options")."</button>
					<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>
					</form>";
                }
            }

            print "</div></div></body></html>";

        } else {
            render_login_form();
        }
    }

    public function index() {
        header("Content-Type: text/plain");
        print error_json(13);
    }

    public function forgotpass() {
        startup_gettext();

The function startup_gettext() has been deprecated: Loaded in bootstrap

        session_start();

        @$hash = clean($_REQUEST["hash"]);

        header('Content-Type: text/html; charset=utf-8');
        ?>
		<!DOCTYPE html>
		<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">
			<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
			<?php
                echo stylesheet_tag("css/default.css");
                echo javascript_tag("lib/prototype.js");
                echo javascript_tag("lib/dojo/dojo.js");
                echo javascript_tag("lib/dojo/tt-rss-layer.js");
            ?>
		</head>
		<body class='flat ttrss_utility'>
		<div class='container'>

		<script type="text/javascript">
		require(['dojo/parser', "dojo/ready", 'dijit/form/Button','dijit/form/CheckBox', 'dijit/form/Form',
    		'dijit/form/Select','dijit/form/TextBox','dijit/form/ValidationTextBox'],function(parser, ready){
			ready(function() {
				parser.parse();
			});
		});
		</script>
		<?php

        print "<h1>".__("Password recovery")."</h1>";
        print "<div class='content'>";

        @$method = clean($_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 ($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 "<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>";

        } else if (!$method) {
            print_notice(__("You will need to provide valid account name and email. Password reset link will be sent to your email address."));

            print "<form method='POST' action='public.php'>
				<input type='hidden' name='method' value='do'>
				<input type='hidden' name='op' value='forgotpass'>

				<fieldset>
				<label>".__("Login:")."</label>
				<input dojoType='dijit.form.TextBox' type='text' name='login' value='' required>
				</fieldset>

				<fieldset>
				<label>".__("Email:")."</label>
				<input dojoType='dijit.form.TextBox' type='email' name='email' value='' required>
				</fieldset>";

            $_SESSION["pwdreset:testvalue1"] = rand(1, 10);
            $_SESSION["pwdreset:testvalue2"] = rand(1, 10);

            print "<fieldset>
				<label>".T_sprintf("How much is %d + %d:", $_SESSION["pwdreset:testvalue1"], $_SESSION["pwdreset:testvalue2"])."</label>
				<input dojoType='dijit.form.TextBox' type='text' name='test' value='' required>
				</fieldset>

				<hr/>
				<fieldset>
				<button dojoType='dijit.form.Button' type='submit' class='alt-danger'>".__("Reset password")."</button>
				<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>
				</fieldset>

				</form>";
        } else if ($method == 'do') {

            $login = clean($_POST["login"]);
            $email = clean($_POST["email"]);
            $test = clean($_POST["test"]);

            if ($test != ($_SESSION["pwdreset:testvalue1"] + $_SESSION["pwdreset:testvalue2"]) || !$email || !$login) {
                print_error(__('Some of the required form parameters are missing or incorrect.'));

                print "<form method='GET' action='public.php'>
					<input type='hidden' name='op' value='forgotpass'>
					<button dojoType='dijit.form.Button' type='submit' class='alt-primary'>".__("Go back")."</button>
					</form>";

            } else {

                // prevent submitting this form multiple times
                $_SESSION["pwdreset:testvalue1"] = rand(1, 1000);
                $_SESSION["pwdreset:testvalue2"] = rand(1, 1000);

                $sth = $this->pdo->prepare("SELECT id FROM ttrss_users
					WHERE login = ? AND email = ?");
                $sth->execute([$login, $email]);

                if ($row = $sth->fetch()) {
                    print_notice("Password reset instructions are being sent to your email address.");

                    $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 "lib/MiniTemplator.class.php";

                        $tpl = new MiniTemplator;

                        $tpl->readTemplateFromFile("templates/resetpass_link_template.txt");

                        $tpl->setVariable('LOGIN', $login);
                        $tpl->setVariable('RESETPASS_LINK', $resetpass_link);
                        $tpl->setVariable('TTRSS_HOST', SELF_URL_PATH);

                        $tpl->addBlock('message');

                        $message = "";

                        $tpl->generateOutputToString($message);

                        $mailer = new Mailer();

                        $rc = $mailer->mail(["to_name" => $login,
                            "to_address" => $email,
                            "subject" => __("[tt-rss] Password reset request"),
                            "message" => $message]);

                        if (!$rc) {
                            print_error($mailer->error());
                        }

                        $resetpass_token_full = time().":".$resetpass_token;

                        $sth = $this->pdo->prepare("UPDATE ttrss_users
							SET resetpass_token = ?
							WHERE login = ? AND email = ?");

                        $sth->execute([$resetpass_token_full, $login, $email]);

                    } else {
                        print_error("User ID not found.");
                    }

                    print "<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>";

                } else {
                    print_error(__("Sorry, login and email combination not found."));

                    print "<form method='GET' action='public.php'>
						<input type='hidden' name='op' value='forgotpass'>
						<button dojoType='dijit.form.Button' type='submit'>".__("Go back")."</button>
						</form>";

                }
            }

        }

        print "</div>";
        print "</div>";
        print "</body>";
        print "</html>";

    }

    public function dbupdate() {
        startup_gettext();

The function startup_gettext() has been deprecated: Loaded in bootstrap

        if (!SINGLE_USER_MODE && $_SESSION["access_level"] < 10) {
            $_SESSION["login_error_msg"] = __("Your access level is insufficient to run this script.");
            render_login_form();
            exit;
        }

        ?>
		<!DOCTYPE html>
		<html>
			<head>
			<title>Database Updater</title>
			<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
			<?php echo stylesheet_tag("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">
			<?php
                echo stylesheet_tag("css/default.css");
                echo javascript_tag("lib/prototype.js");
                echo javascript_tag("lib/dojo/dojo.js");
                echo javascript_tag("lib/dojo/tt-rss-layer.js");
            ?>
			<style type="text/css">
				span.ok { color : #009000; font-weight : bold; }
				span.err { color : #ff0000; font-weight : bold; }
			</style>
		</head>
		<body class="flat ttrss_utility">

			<script type="text/javascript">
				require(['dojo/parser', "dojo/ready", 'dijit/form/Button','dijit/form/CheckBox', 'dijit/form/Form',
					'dijit/form/Select','dijit/form/TextBox','dijit/form/ValidationTextBox'],function(parser, ready){
					ready(function() {
						parser.parse();
					});
				});

				public function confirmOP() {
					return confirm("Update the database?");
				}
			</script>

			<div class="container">
			<h1><?php echo __("Database Updater") ?></h1>

			<div class="content">

			<?php
                @$op = clean($_REQUEST["subop"]);
                $updater = new DbUpdater(DB_TYPE, SCHEMA_VERSION);

                if ($op == "performupdate") {
                    if ($updater->isUpdateRequired()) {

                        print "<h2>".T_sprintf("Performing updates to version %d", SCHEMA_VERSION)."</h2>";

                        for ($i = $updater->getSchemaVersion() + 1; $i <= SCHEMA_VERSION; $i++) {
                            print "<ul>";

                            print "<li class='text-info'>".T_sprintf("Updating to version %d", $i)."</li>";

                            print "<li>";
                            $result = $updater->performUpdateTo($i, true);
                            print "</li>";

                            if (!$result) {
                                print "</ul>";

                                print_error("One of the updates failed. Either retry the process or perform updates manually.");

                                print "<form method='POST'>
									<input type='hidden' name='subop' value='performupdate'>
									<button type='submit' dojoType='dijit.form.Button' class='alt-danger' onclick='return confirmOP()'>".__("Try again")."</button>
									<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>
								</form>";

                                return;
                            } else {
                                print "<li class='text-success'>".__("Completed.")."</li>";
                                print "</ul>";
                            }
                        }

                        print_notice("Your Tiny Tiny RSS database is now updated to the latest version.");

                        print "<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>";

                    } else {
                        print_notice("Tiny Tiny RSS database is up to date.");

                        print "<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>";
                    }
                } else {
                    if ($updater->isUpdateRequired()) {

                        print "<h2>".T_sprintf("Tiny Tiny RSS database needs update to the latest version (%d to %d).",
                            $updater->getSchemaVersion(), SCHEMA_VERSION)."</h2>";

                        if (DB_TYPE == "mysql") {
                            print_error("<strong>READ THIS:</strong> Due to MySQL limitations, your database is not completely protected while updating. ".
                                "Errors may put it in an inconsistent state requiring manual rollback. <strong>BACKUP YOUR DATABASE BEFORE CONTINUING.</strong>");
                        } else {
                            print_warning("Please backup your database before proceeding.");
                        }

                        print "<form method='POST'>
							<input type='hidden' name='subop' value='performupdate'>
							<button type='submit' dojoType='dijit.form.Button' class='alt-danger' onclick='return confirmOP()'>".__("Perform updates")."</button>
						</form>";

                    } else {

                        print_notice("Tiny Tiny RSS database is up to date.");

                        print "<a href='index.php'>".__("Return to Tiny Tiny RSS")."</a>";
                    }
                }
            ?>

			</div>
			</div>
			</body>
			</html>
		<?php
    }

    public function cached_url() {
        list ($cache_dir, $filename) = explode("/", $_GET["file"], 2);

        // we do not allow files with extensions at the moment
        $filename = str_replace(".", "", $filename);

        $cache = new DiskCache($cache_dir);

        if ($cache->exists($filename)) {
            $cache->send($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();

        $plugin_name = clean_filename($_REQUEST["plugin"]);
        $method = clean($_REQUEST["pmethod"]);

        $host->load($plugin_name, PluginHost::KIND_USER, 0);
        $host->load_data();

        $plugin = $host->get_plugin($plugin_name);

        if ($plugin) {
            if (method_exists($plugin, $method)) {
                if ($plugin->is_public_method($method)) {
                    $plugin->$method();
                } else {
                    user_error("PluginHandler[PUBLIC]: Requested private method '$method' of plugin '$plugin_name'.", E_USER_WARNING);
                    header("Content-Type: text/json");
                    print error_json(6);
                }
            } else {
                user_error("PluginHandler[PUBLIC]: Requested unknown method '$method' of plugin '$plugin_name'.", E_USER_WARNING);
                header("Content-Type: text/json");
                print error_json(13);
            }
        } else {
            user_error("PluginHandler[PUBLIC]: Requested method '$method' of unknown plugin '$plugin_name'.", E_USER_WARNING);
            header("Content-Type: text/json");
            print error_json(14);
        }
    }
}