function dispatchImageRequest()
{
genericAssertion('img', 'string');
global $pageno, $tabno;
switch ($_REQUEST['img']) {
case 'minirack':
// rack security context
$pageno = 'rack';
$tabno = 'default';
fixContext();
assertPermission();
dispatchMiniRackThumbRequest(getBypassValue());
break;
case 'midirack':
// rack security context
$pageno = 'rack';
$tabno = 'default';
fixContext();
assertPermission();
genericAssertion('scale', 'uint');
# Scaling implies no caching, there is no special dispatching.
header('Content-type: image/png');
printRackThumbImage(getBypassValue(), $_REQUEST['scale']);
break;
case 'preview':
// file security context
$pageno = 'file';
$tabno = 'download';
fixContext();
assertPermission();
renderImagePreview(getBypassValue());
break;
case 'cactigraph':
$pageno = 'object';
$tabno = 'cacti';
fixContext();
assertPermission();
genericAssertion('server_id', 'uint');
genericAssertion('graph_id', 'uint');
if (!array_key_exists($_REQUEST['graph_id'], getCactiGraphsForObject(getBypassValue()))) {
throw new InvalidRequestArgException('graph_id', $_REQUEST['graph_id']);
}
proxyCactiRequest($_REQUEST['server_id'], $_REQUEST['graph_id']);
break;
case 'muningraph':
$pageno = 'object';
$tabno = 'munin';
fixContext();
assertPermission();
genericAssertion('server_id', 'uint');
genericAssertion('graph', 'string');
if (!array_key_exists($_REQUEST['graph'], getMuninGraphsForObject(getBypassValue()))) {
throw new InvalidRequestArgException('graph', $_REQUEST['graph']);
}
proxyMuninRequest($_REQUEST['server_id'], $_REQUEST['graph']);
break;
default:
renderErrorImage();
}
}
function dispatchImageRequest()
{
genericAssertion('img', 'string');
global $pageno, $tabno;
switch ($_REQUEST['img']) {
case 'minirack':
// rack security context
$pageno = 'rack';
$tabno = 'default';
fixContext();
assertPermission();
renderRackThumb(getBypassValue());
break;
case 'preview':
// file security context
$pageno = 'file';
$tabno = 'download';
fixContext();
assertPermission();
renderImagePreview(getBypassValue());
break;
case 'cactigraph':
$pageno = 'object';
$tabno = 'cacti';
fixContext();
assertPermission();
genericAssertion('graph_id', 'uint');
if (!array_key_exists($_REQUEST['graph_id'], getCactiGraphsForObject(getBypassValue()))) {
throw new InvalidRequestArgException('graph_id', $_REQUEST['graph_id']);
}
proxyCactiRequest($_REQUEST['graph_id']);
break;
default:
renderErrorImage();
}
}
# 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
require_once 'inc/solutions.php';
try {
dispatchImageRequest();
} catch (RTPermissionDenied $e) {
ob_clean();
renderAccessDeniedImage();
} catch (Exception $e) {
ob_clean();
renderErrorImage();
}
break;
case 'svg' == $_REQUEST['module']:
require_once 'inc/init.php';
require_once 'inc/solutions.php';
header('Content-Type: image/svg+xml');
echo '<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>' . "\n";
echo '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">' . "\n";
try {
genericAssertion('view', 'string');
if (!array_key_exists($_REQUEST['view'], $svghandler)) {
throw new InvalidRequestArgException('view', $_REQUEST['view'], 'undefined view');
}
if (!is_callable($svghandler[$_REQUEST['view']])) {
throw new RackTablesError('missing handler function', RackTablesError::INTERNAL);
