tt-rss/classes/pref/system.php

<?php

class Pref_System extends Handler_Protected {

	private $log_page_limit = 15;

	function before($method) {
		if (parent::before($method)) {
			if ($_SESSION["access_level"] < 10) {
				print __("Your access level is insufficient to open this tab.");
				return false;
			}
			return true;
		}
		return false;
	}

	function csrf_ignore($method) {
		$csrf_ignored = array("index");

		return array_search($method, $csrf_ignored) !== false;
	}

	function clearLog() {
		$this->pdo->query("DELETE FROM ttrss_error_log");
	}

	private function log_viewer(int $page, int $severity) {
		$errno_values = [];

		switch ($severity) {
			case E_USER_ERROR:
				$errno_values = [ E_ERROR, E_USER_ERROR, E_PARSE ];
				break;
			case E_USER_WARNING:
				$errno_values = [ E_ERROR, E_USER_ERROR, E_PARSE, E_WARNING, E_USER_WARNING, E_DEPRECATED, E_USER_DEPRECATED ];
				break;
		}

		if (count($errno_values) > 0) {
			$errno_qmarks = arr_qmarks($errno_values);
			$errno_filter_qpart = "errno IN ($errno_qmarks)";
		} else {
			$errno_filter_qpart = "true";
		}

		$limit = $this->log_page_limit;
		$offset = $limit * $page;

		$sth = $this->pdo->prepare("SELECT
				COUNT(id) AS total_pages
			FROM
				ttrss_error_log
			WHERE
				$errno_filter_qpart");

		$sth->execute($errno_values);

		if ($res = $sth->fetch()) {
			$total_pages = (int)($res["total_pages"] / $limit);
		} else {
			$total_pages = 0;
		}

		print "<div dojoType='dijit.layout.BorderContainer' gutters='false'>";

		print "<div region='top' dojoType='fox.Toolbar'>";

		print "<button dojoType='dijit.form.Button'
			onclick='Helpers.EventLog.refresh()'>".__('Refresh')."</button>";

		$prev_page_disabled = $page <= 0 ? "disabled" : "";

		print "<button dojoType='dijit.form.Button' $prev_page_disabled
			onclick='Helpers.EventLog.prevPage()'>".__('&lt;&lt;')."</button>";

		print "<button dojoType='dijit.form.Button' disabled>".T_sprintf('Page %d of %d', $page+1, $total_pages+1)."</button>";

		$next_page_disabled = $page >= $total_pages ? "disabled" : "";

		print "<button dojoType='dijit.form.Button' $next_page_disabled
			onclick='Helpers.EventLog.nextPage()'>".__('&gt;&gt;')."</button>";

		print "<button dojoType='dijit.form.Button'
			onclick='Helpers.EventLog.clear()'>".__('Clear')."</button>";

		print "<div class='pull-right'>";

		print __("Severity:") . " ";
		print_select_hash("severity", $severity,
			[
				E_USER_ERROR => __("Errors"),
				E_USER_WARNING => __("Warnings"),
				E_USER_NOTICE => __("Everything")
			], 'dojoType="fox.form.Select" onchange="Helpers.EventLog.refresh()"');

		print "</div>"; # pull-right

		print "</div>"; # toolbar

		print '<div style="padding : 0px" dojoType="dijit.layout.ContentPane" region="center">';

		print "<table width='100%' class='event-log'>";

		print "<tr class='title'>
			<td width='5%'>".__("Error")."</td>
			<td>".__("Filename")."</td>
			<td>".__("Message")."</td>
			<td width='5%'>".__("User")."</td>
			<td width='5%'>".__("Date")."</td>
			</tr>";

		$sth = $this->pdo->prepare("SELECT
				errno, errstr, filename, lineno, created_at, login, context
			FROM
				ttrss_error_log LEFT JOIN ttrss_users ON (owner_uid = ttrss_users.id)
			WHERE
				$errno_filter_qpart
			ORDER BY
				ttrss_error_log.id DESC
			LIMIT $limit OFFSET $offset");

		$sth->execute($errno_values);

		while ($line = $sth->fetch()) {
			print "<tr>";

			foreach ($line as $k => $v) {
				$line[$k] = htmlspecialchars($v);
			}

			print "<td class='errno'>" . Logger::$errornames[$line["errno"]] . " (" . $line["errno"] . ")</td>";
			print "<td class='filename'>" . $line["filename"] . ":" . $line["lineno"] . "</td>";
			print "<td class='errstr'>" . $line["errstr"] . "\n" .  $line["context"] . "</td>";
			print "<td class='login'>" . $line["login"] . "</td>";

			print "<td class='timestamp'>" .
				TimeHelper::make_local_datetime($line["created_at"], false) . "</td>";

			print "</tr>";
		}

		print "</table>";
	}

	function index() {

		$severity = (int) ($_REQUEST["severity"] ?? E_USER_WARNING);
		$page = (int) ($_REQUEST["page"] ?? 0);

		print "<div dojoType='dijit.layout.AccordionContainer' region='center'>";
		print "<div dojoType='dijit.layout.AccordionPane' style='padding : 0'
			title='<i class=\"material-icons\">report</i> ".__('Event Log')."'>";

		if (LOG_DESTINATION == "sql") {

			$this->log_viewer($page, $severity);

		} else {
			print_notice("Please set LOG_DESTINATION to 'sql' in config.php to enable database logging.");
		}

		print "</div>"; # content pane
		print "</div>"; # container
		print "</div>"; # accordion pane

		print "<div dojoType='dijit.layout.AccordionPane'
			title='<i class=\"material-icons\">info</i> ".__('PHP Information')."'>";

		ob_start();
		phpinfo();
		$info = ob_get_contents();
		ob_end_clean();

		print "<div class='phpinfo'>";
		print preg_replace( '%^.*<body>(.*)</body>.*$%ms','$1', $info);
		print "</div>";

		print "</div>"; # accordion pane

		PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_TAB, "prefSystem");

		print "</div>"; #container
	}

}