[racktables] / wwwroot / index.php

<?php
ob_start();
# Neither "throw/catch" for custom exceptions nor printException() will
# work without first loading exceptions.php.
require_once 'inc/exceptions.php';
try {
// Code block below is a module request dispatcher. Turning it into a
// function will break things because of the way require() works.
	switch (TRUE)
	{
	case ! array_key_exists ('module', $_REQUEST):
	case 'interface' == $_REQUEST['module']:
		require_once 'inc/interface.php';
		// init.php has to be included after interface.php, otherwise the bits
		// set by local.php get lost
		require_once 'inc/init.php';
		prepareNavigation();
		// Security context is built on the requested page/tab/bypass data,
		// do not override.
		fixContext();
		redirectIfNecessary();
		if (! permitted())
		{
			renderAccessDenied (FALSE);
			break;
		}
		header ('Content-Type: text/html; charset=UTF-8');
		// Only store the tab name after clearance is got. Any failure is unhandleable.
		if (isset ($_REQUEST['tab']) and ! isset ($_SESSION['RTLT'][$pageno]['dont_remember']))
			$_SESSION['RTLT'][$pageno] = array ('tabname' => $tabno, 'time' => time());
		// call the main handler - page or tab handler.
		if (isset ($tabhandler[$pageno][$tabno]))
			call_user_func ($tabhandler[$pageno][$tabno], getBypassValue());
		elseif (isset ($page[$pageno]['handler']))
			$page[$pageno]['handler'] ($tabno);
		else
			throw new RackTablesError ("Failed to find handler for page '${pageno}', tab '${tabno}'", RackTablesError::INTERNAL);
		// Embed the current text in OB into interface layout (the latter also
		// empties color message buffer).
		$contents = ob_get_contents();
		ob_clean();
		renderInterfaceHTML ($pageno, $tabno, $contents);
		break;
	case 'chrome' == $_REQUEST['module']:
		require_once 'inc/init.php';
		genericAssertion ('uri', 'string');
		proxyStaticURI ($_REQUEST['uri']);
		break;
	case 'download' == $_REQUEST['module']:
		require_once 'inc/init.php';
		$pageno = 'file';
		$tabno = 'download';
		fixContext();
		if (!permitted())
		{
			renderAccessDenied (FALSE);
			break;
		}
		$file = getFile (getBypassValue());
		header("Content-Type: {$file['type']}");
		header("Content-Length: {$file['size']}");
		if (! array_key_exists ('asattach', $_REQUEST) or $_REQUEST['asattach'] != 'no')
			header("Content-Disposition: attachment; filename={$file['name']}");
		echo $file['contents'];
		break;
	case 'image' == $_REQUEST['module']:
		# The difference between "image" and "download" ways to serve the same
		# picture file is that the former is used in <IMG SRC=...> construct,
		# and the latter is accessed as a standalone URL and can reply with any
		# Content-type. Hence "image" module indicates failures with internally
		# built images, and "download" can return a full-fledged "permission
		# denied" or "exception" HTML page instead of the file requested.
		require_once 'inc/init.php'; // for authentication check
		// 'progressbar's never change, attempt an IMS shortcut before loading init.php
		if (@$_REQUEST['img'] == 'progressbar')
			if (checkCachedResponse (0, CACHE_DURATION))
				exit;
		require_once 'inc/render_image.php';
		try
		{
			dispatchImageRequest();
		}
		catch (Exception $e)
		{
			ob_clean();
			renderErrorImage();
		}
		break;
	case 'ajax' == $_REQUEST['module']:
		require_once 'inc/ajax-interface.php';
		require_once 'inc/init.php';
		try
		{
			dispatchAJAXRequest();
		}
		catch (InvalidRequestArgException $e)
		{
			ob_clean();
			echo "NAK\nMalformed request";
		}
		catch (Exception $e)
		{
			ob_clean();
			echo "NAK\nRuntime exception: ". $e->getMessage();
		}
		break;
	case 'redirect' == $_REQUEST['module']:
		// Include init after ophandlers/snmp, not before, so local.php can redefine things.
		require_once 'inc/ophandlers.php';
		// snmp.php is an exception, it is treated by a special hack
		if (isset ($_REQUEST['op']) and $_REQUEST['op'] == 'querySNMPData')
			require_once 'inc/snmp.php';
		require_once 'inc/init.php';
		try
		{
			genericAssertion ('op', 'string');
			$op = $_REQUEST['op'];
			prepareNavigation();
			$location = buildWideRedirectURL();
			// FIXME: find a better way to handle this error
			if ($op == 'addFile' && !isset($_FILES['file']['error']))
				throw new RackTablesError ('File upload error, check upload_max_filesize in php.ini', RackTablesError::MISCONFIGURED);
			fixContext();
			if
			(
				!isset ($ophandler[$pageno][$tabno][$op]) or
				!function_exists ($ophandler[$pageno][$tabno][$op])
			)
				throw new RackTablesError ("Invalid navigation data for '${pageno}-${tabno}-${op}'", RackTablesError::INTERNAL);
			// We have a chance to handle an error before starting HTTP header.
			if (!isset ($delayauth[$pageno][$tabno][$op]) and !permitted())
				showError ('Operation not permitted');
			else
			{
				// Call below does the job of bypass argument assertion, if such is required,
				// so the ophandler function doesn't have to re-assert this portion of its
				// arguments. And it would be even better to pass returned value to ophandler,
				// so it is not necessary to remember the name of bypass in it.
				getBypassValue();
				if (strlen ($redirect_to = call_user_func ($ophandler[$pageno][$tabno][$op])))
					$location = $redirect_to;
			}
			header ("Location: " . $location);
		}
		// known "soft" failures require a short error message
		catch (InvalidRequestArgException $e)
		{
			ob_clean();
			showError ($e->getMessage());
			header ('Location: ' . $location);
		}
		catch (RTDatabaseError $e)
		{
			ob_clean();
			showError ('Database error: ' . $e->getMessage());
			header ('Location: ' . $location);
		}
		// any other error requires no special handling and will be caught outside
		break;
	case 'popup' == $_REQUEST['module']:
		require_once 'inc/popup.php';
		require_once 'inc/init.php';
		renderPopupHTML();
		break;
	case 'upgrade' == $_REQUEST['module']:
		require_once 'inc/config.php'; // for CODE_VERSION
		require_once 'inc/dictionary.php';
		require_once 'inc/upgrade.php';
		// Enforce default value for now, releases prior to 0.17.0 didn't support 'httpd' auth source.
		$user_auth_src = 'database';
		if (FALSE === @include_once 'inc/secret.php')
			die ('<center>There is no working RackTables instance here, <a href="?module=installer">install</a>?</center>');
		try
		{
			$dbxlink = new PDO ($pdo_dsn, $db_username, $db_password);
		}
		catch (PDOException $e)
		{
			die ("Database connection failed:\n\n" . $e->getMessage());
		}
		renderUpgraderHTML();
		break;
	case 'installer' == $_REQUEST['module']:
		require_once 'inc/dictionary.php';
		require_once 'inc/install.php';
		renderInstallerHTML();
		break;
	default:
		throw new InvalidRequestArgException ('module', $_REQUEST['module']);
	}
	ob_end_flush();
}
catch (Exception $e)
{
	ob_end_clean();
	# prevent message appearing in foreign tab
	if (isset ($_SESSION['log']))
		unset ($_SESSION['log']);
	printException ($e);
}
?>
Commit	Line	Data
b325120a	1	<?php
90a3d6d8	2	ob_start();
91bd1d6e DO	3	# Neither "throw/catch" for custom exceptions nor printException() will
	4	# work without first loading exceptions.php.
	5	require_once 'inc/exceptions.php';
90a3d6d8	6	try {
87c744a9 DO	7	// Code block below is a module request dispatcher. Turning it into a
87c744a9 DO	8	// function will break things because of the way require() works.
c5dfde62	9	switch (TRUE)
36ef72d9	10	{
c5dfde62 DO	11	case ! array_key_exists ('module', $_REQUEST):
	12	case 'interface' == $_REQUEST['module']:
	13	require_once 'inc/interface.php';
	14	// init.php has to be included after interface.php, otherwise the bits
	15	// set by local.php get lost
	16	require_once 'inc/init.php';
	17	prepareNavigation();
	18	// Security context is built on the requested page/tab/bypass data,
	19	// do not override.
	20	fixContext();
	21	redirectIfNecessary();
	22	if (! permitted())
	23	{
	24	renderAccessDenied (FALSE);
	25	break;
	26	}
	27	header ('Content-Type: text/html; charset=UTF-8');
	28	// Only store the tab name after clearance is got. Any failure is unhandleable.
	29	if (isset ($_REQUEST['tab']) and ! isset ($_SESSION['RTLT'][$pageno]['dont_remember']))
	30	$_SESSION['RTLT'][$pageno] = array ('tabname' => $tabno, 'time' => time());
	31	// call the main handler - page or tab handler.
	32	if (isset ($tabhandler[$pageno][$tabno]))
	33	call_user_func ($tabhandler[$pageno][$tabno], getBypassValue());
	34	elseif (isset ($page[$pageno]['handler']))
	35	$page[$pageno]['handler'] ($tabno);
	36	else
	37	throw new RackTablesError ("Failed to find handler for page '${pageno}', tab '${tabno}'", RackTablesError::INTERNAL);
	38	// Embed the current text in OB into interface layout (the latter also
	39	// empties color message buffer).
	40	$contents = ob_get_contents();
	41	ob_clean();
	42	renderInterfaceHTML ($pageno, $tabno, $contents);
	43	break;
19f22ad8	44	case 'chrome' == $_REQUEST['module']:
4afb4c10	45	require_once 'inc/init.php';
36ef72d9 DO	46	genericAssertion ('uri', 'string');
	47	proxyStaticURI ($_REQUEST['uri']);
	48	break;
c5dfde62	49	case 'download' == $_REQUEST['module']:
4afb4c10	50	require_once 'inc/init.php';
0415b520 DO	51	$pageno = 'file';
	52	$tabno = 'download';
	53	fixContext();
	54	if (!permitted())
	55	{
87c744a9 DO	56	renderAccessDenied (FALSE);
87c744a9 DO	57	break;
0415b520	58	}
0415b520 DO	59	$file = getFile (getBypassValue());
	60	header("Content-Type: {$file['type']}");
	61	header("Content-Length: {$file['size']}");
39cfa9a7	62	if (! array_key_exists ('asattach', $_REQUEST) or $_REQUEST['asattach'] != 'no')
0415b520 DO	63	header("Content-Disposition: attachment; filename={$file['name']}");
	64	echo $file['contents'];
	65	break;
c5dfde62	66	case 'image' == $_REQUEST['module']:
b849b7e1 DO	67	# The difference between "image" and "download" ways to serve the same
	68	# picture file is that the former is used in <IMG SRC=...> construct,
	69	# and the latter is accessed as a standalone URL and can reply with any
	70	# Content-type. Hence "image" module indicates failures with internally
	71	# built images, and "download" can return a full-fledged "permission
	72	# denied" or "exception" HTML page instead of the file requested.
8b912171	73	require_once 'inc/init.php'; // for authentication check
5beb7c53 AA	74	// 'progressbar's never change, attempt an IMS shortcut before loading init.php
5beb7c53 AA	75	if (@$_REQUEST['img'] == 'progressbar')
8b912171	76	if (checkCachedResponse (0, CACHE_DURATION))
5beb7c53	77	exit;
4afb4c10	78	require_once 'inc/render_image.php';
4afb4c10 DO	79	try
	80	{
	81	dispatchImageRequest();
	82	}
	83	catch (Exception $e)
	84	{
87c744a9	85	ob_clean();
11566bd6	86	renderErrorImage();
4afb4c10 DO	87	}
4afb4c10 DO	88	break;
c5dfde62	89	case 'ajax' == $_REQUEST['module']:
9f4f431c DO	90	require_once 'inc/ajax-interface.php';
	91	require_once 'inc/init.php';
	92	try
	93	{
	94	dispatchAJAXRequest();
	95	}
	96	catch (InvalidRequestArgException $e)
	97	{
	98	ob_clean();
	99	echo "NAK\nMalformed request";
	100	}
	101	catch (Exception $e)
	102	{
	103	ob_clean();
	104	echo "NAK\nRuntime exception: ". $e->getMessage();
	105	}
	106	break;
c5dfde62	107	case 'redirect' == $_REQUEST['module']:
87c744a9 DO	108	// Include init after ophandlers/snmp, not before, so local.php can redefine things.
	109	require_once 'inc/ophandlers.php';
	110	// snmp.php is an exception, it is treated by a special hack
	111	if (isset ($_REQUEST['op']) and $_REQUEST['op'] == 'querySNMPData')
	112	require_once 'inc/snmp.php';
	113	require_once 'inc/init.php';
	114	try
	115	{
	116	genericAssertion ('op', 'string');
	117	$op = $_REQUEST['op'];
	118	prepareNavigation();
	119	$location = buildWideRedirectURL();
	120	// FIXME: find a better way to handle this error
	121	if ($op == 'addFile' && !isset($_FILES['file']['error']))
	122	throw new RackTablesError ('File upload error, check upload_max_filesize in php.ini', RackTablesError::MISCONFIGURED);
	123	fixContext();
	124	if
	125	(
	126	!isset ($ophandler[$pageno][$tabno][$op]) or
	127	!function_exists ($ophandler[$pageno][$tabno][$op])
	128	)
	129	throw new RackTablesError ("Invalid navigation data for '${pageno}-${tabno}-${op}'", RackTablesError::INTERNAL);
	130	// We have a chance to handle an error before starting HTTP header.
	131	if (!isset ($delayauth[$pageno][$tabno][$op]) and !permitted())
	132	showError ('Operation not permitted');
	133	else
	134	{
	135	// Call below does the job of bypass argument assertion, if such is required,
	136	// so the ophandler function doesn't have to re-assert this portion of its
	137	// arguments. And it would be even better to pass returned value to ophandler,
	138	// so it is not necessary to remember the name of bypass in it.
	139	getBypassValue();
	140	if (strlen ($redirect_to = call_user_func ($ophandler[$pageno][$tabno][$op])))
	141	$location = $redirect_to;
	142	}
	143	header ("Location: " . $location);
	144	}
	145	// known "soft" failures require a short error message
93c946ac	146	catch (InvalidRequestArgException $e)
87c744a9 DO	147	{
	148	ob_clean();
	149	showError ($e->getMessage());
	150	header ('Location: ' . $location);
	151	}
	152	catch (RTDatabaseError $e)
	153	{
	154	ob_clean();
	155	showError ('Database error: ' . $e->getMessage());
	156	header ('Location: ' . $location);
	157	}
	158	// any other error requires no special handling and will be caught outside
	159	break;
e0ce8064 DO	160	case 'popup' == $_REQUEST['module']:
e0ce8064 DO	161	require_once 'inc/popup.php';
e0ce8064 DO	162	require_once 'inc/init.php';
	163	renderPopupHTML();
	164	break;
964b0388 DO	165	case 'upgrade' == $_REQUEST['module']:
	166	require_once 'inc/config.php'; // for CODE_VERSION
	167	require_once 'inc/dictionary.php';
	168	require_once 'inc/upgrade.php';
	169	// Enforce default value for now, releases prior to 0.17.0 didn't support 'httpd' auth source.
	170	$user_auth_src = 'database';
	171	if (FALSE === @include_once 'inc/secret.php')
e37cfe5f	172	die ('<center>There is no working RackTables instance here, <a href="?module=installer">install</a>?</center>');
964b0388 DO	173	try
	174	{
	175	$dbxlink = new PDO ($pdo_dsn, $db_username, $db_password);
	176	}
	177	catch (PDOException $e)
	178	{
	179	die ("Database connection failed:\n\n" . $e->getMessage());
	180	}
	181	renderUpgraderHTML();
	182	break;
91bd1d6e	183	case 'installer' == $_REQUEST['module']:
e37cfe5f DO	184	require_once 'inc/dictionary.php';
	185	require_once 'inc/install.php';
	186	renderInstallerHTML();
	187	break;
36ef72d9 DO	188	default:
	189	throw new InvalidRequestArgException ('module', $_REQUEST['module']);
	190	}
0415b520	191	ob_end_flush();
36ef72d9	192	}
c5dfde62 DO	193	catch (Exception $e)
c5dfde62 DO	194	{
90a3d6d8	195	ob_end_clean();
91bd1d6e DO	196	# prevent message appearing in foreign tab
	197	if (isset ($_SESSION['log']))
	198	unset ($_SESSION['log']);
c5dfde62	199	printException ($e);
90a3d6d8	200	}
e410ebfc	201	?>