icingadb-web/library/Icingadb/Web/Controller.php
2025-10-21 14:56:41 +02:00

547 lines
19 KiB
PHP

<?php
/* Icinga DB Web | (c) 2020 Icinga GmbH | GPLv2 */
namespace Icinga\Module\Icingadb\Web;
use Exception;
use Generator;
use GuzzleHttp\Psr7\ServerRequest;
use Icinga\Application\Config;
use Icinga\Application\Icinga;
use Icinga\Application\Logger;
use Icinga\Application\Version;
use Icinga\Application\Web;
use Icinga\Data\ConfigObject;
use Icinga\Date\DateFormatter;
use Icinga\Exception\ConfigurationError;
use Icinga\Exception\Http\HttpBadRequestException;
use Icinga\Exception\Json\JsonDecodeException;
use Icinga\Module\Icingadb\Common\Auth;
use Icinga\Module\Icingadb\Common\Database;
use Icinga\Module\Icingadb\Common\SearchControls;
use Icinga\Module\Icingadb\Data\CsvResultSet;
use Icinga\Module\Icingadb\Data\JsonResultSet;
use Icinga\Module\Icingadb\Web\Control\GridViewModeSwitcher;
use Icinga\Module\Icingadb\Web\Control\ViewModeSwitcher;
use Icinga\Module\Icingadb\Widget\ItemTable\StateItemTable;
use Icinga\Module\Pdfexport\PrintableHtmlDocument;
use Icinga\Module\Pdfexport\ProvidedHook\Pdfexport;
use Icinga\Security\SecurityException;
use Icinga\User\Preferences;
use Icinga\User\Preferences\PreferencesStore;
use Icinga\Util\Environment;
use Icinga\Util\Json;
use ipl\Html\Html;
use ipl\Html\ValidHtml;
use ipl\Orm\Query;
use ipl\Orm\UnionQuery;
use ipl\Stdlib\Filter;
use ipl\Web\Compat\CompatController;
use ipl\Web\Control\LimitControl;
use ipl\Web\Control\PaginationControl;
use ipl\Web\Filter\QueryString;
use ipl\Web\Url;
class Controller extends CompatController
{
use Auth;
use Database;
use SearchControls;
/** @var Filter\Rule Filter from query string parameters */
private $filter;
/** @var string|null */
private $format;
/** @var bool */
private $formatProcessed = false;
/**
* Get the filter created from query string parameters
*
* @return Filter\Rule
*/
public function getFilter(): Filter\Rule
{
if ($this->filter === null) {
$this->filter = QueryString::parse((string) $this->params);
}
return $this->filter;
}
/**
* Create column control
*
* @param Query $query
* @param ViewModeSwitcher $viewModeSwitcher
*
* @return array provided columns
*
* @throws HttpBadRequestException
*/
public function createColumnControl(Query $query, ViewModeSwitcher $viewModeSwitcher): array
{
// All of that is essentially what `ColumnControl::apply()` should do
$viewMode = $this->getRequest()->getUrl()->getParam($viewModeSwitcher->getViewModeParam());
$columnsDef = $this->params->shift('columns');
if (! $columnsDef) {
if ($viewMode === 'tabular') {
$this->httpBadRequest('Missing parameter "columns"');
}
return [];
}
$columns = [];
foreach (explode(',', $columnsDef) as $column) {
if ($column = trim($column)) {
$columns[] = $column;
}
}
$query->withColumns($columns);
if (! $viewMode) {
$viewModeSwitcher->setViewMode('tabular');
}
// For now this also returns the columns, but they should be accessible
// by calling `ColumnControl::getColumns()` in the future
return $columns;
}
/**
* Create and return the ViewModeSwitcher
*
* This automatically shifts the view mode URL parameter from {@link $params}.
*
* @param PaginationControl $paginationControl
* @param LimitControl $limitControl
* @param bool $verticalPagination
*
* @return ViewModeSwitcher|GridViewModeSwitcher
*/
public function createViewModeSwitcher(
PaginationControl $paginationControl,
LimitControl $limitControl,
bool $verticalPagination = false
): ViewModeSwitcher {
$controllerName = $this->getRequest()->getControllerName();
// TODO: Make this configurable somehow. The route shouldn't be checked to choose the view modes!
if ($controllerName === 'hostgroups' || $controllerName === 'servicegroups') {
$viewModeSwitcher = new GridViewModeSwitcher();
} else {
$viewModeSwitcher = new ViewModeSwitcher();
}
$viewModeSwitcher->setIdProtector([$this->getRequest(), 'protectId']);
$user = $this->Auth()->getUser();
if (($preferredModes = $user->getAdditional('icingadb.view_modes')) === null) {
try {
$preferredModes = Json::decode(
$user->getPreferences()->getValue('icingadb', 'view_modes', '[]'),
true
);
} catch (JsonDecodeException $e) {
Logger::error('Failed to load preferred view modes for user "%s": %s', $user->getUsername(), $e);
$preferredModes = [];
}
$user->setAdditional('icingadb.view_modes', $preferredModes);
}
$requestRoute = $this->getRequest()->getUrl()->getPath();
if (isset($preferredModes[$requestRoute])) {
$viewModeSwitcher->setDefaultViewMode($preferredModes[$requestRoute]);
}
$viewModeSwitcher->populate([
$viewModeSwitcher->getViewModeParam() => $this->params->shift($viewModeSwitcher->getViewModeParam())
]);
$session = $this->Window()->getSessionNamespace(
'icingadb-viewmode-' . $this->Window()->getContainerId()
);
$viewModeSwitcher->on(
ViewModeSwitcher::ON_SUCCESS,
function (ViewModeSwitcher $viewModeSwitcher) use (
$user,
$preferredModes,
$paginationControl,
$verticalPagination,
&$session
) {
$viewMode = $viewModeSwitcher->getValue($viewModeSwitcher->getViewModeParam());
$requestUrl = Url::fromRequest();
$preferredModes[$requestUrl->getPath()] = $viewMode;
$user->setAdditional('icingadb.view_modes', $preferredModes);
try {
$preferencesStore = PreferencesStore::create(new ConfigObject([
//TODO: Don't set store key as it will no longer be needed once we drop support for
// lower version of icingaweb2 then v2.11.
//https://github.com/Icinga/icingaweb2/pull/4765
'store' => Config::app()->get('global', 'config_backend', 'db'),
'resource' => Config::app()->get('global', 'config_resource')
]), $user);
$preferencesStore->load();
$preferencesStore->save(
new Preferences(['icingadb' => ['view_modes' => Json::encode($preferredModes)]])
);
} catch (Exception $e) {
Logger::error('Failed to save preferred view mode for user "%s": %s', $user->getUsername(), $e);
}
$pageParam = $paginationControl->getPageParam();
$limitParam = LimitControl::DEFAULT_LIMIT_PARAM;
$currentPage = $paginationControl->getCurrentPageNumber();
$requestUrl->setParam($viewModeSwitcher->getViewModeParam(), $viewMode);
if (! $requestUrl->hasParam($limitParam)) {
if ($viewMode === 'minimal' || $viewMode === 'grid') {
$session->set('previous_page', $currentPage);
$session->set('request_path', $requestUrl->getPath());
$limit = $paginationControl->getLimit();
if (! $verticalPagination) {
// We are computing it based on the first element being rendered on this current page
$currentPage = (int) (floor((($currentPage * $limit) - $limit) / ($limit * 2)) + 1);
} else {
$currentPage = (int) (round($currentPage * $limit / ($limit * 2)));
}
$session->set('current_page', $currentPage);
} elseif (
$viewModeSwitcher->getDefaultViewMode() === 'minimal'
|| $viewModeSwitcher->getDefaultViewMode() === 'grid'
) {
$limit = $paginationControl->getLimit();
if ($currentPage === $session->get('current_page')) {
// No other page numbers have been selected, i.e the user only
// switches back and forth without changing the page numbers
$currentPage = $session->get('previous_page');
} elseif (! $verticalPagination) {
$currentPage = (int) (floor((($currentPage * $limit) - $limit) / ($limit / 2)) + 1);
} else {
$currentPage = (int) (floor($currentPage * $limit / ($limit / 2)));
}
$session->clear();
}
if (($requestUrl->hasParam($pageParam) && $currentPage > 1) || $currentPage > 1) {
$requestUrl->setParam($pageParam, $currentPage);
} else {
$requestUrl->remove($pageParam);
}
}
$this->redirectNow($requestUrl);
}
)->handleRequest(ServerRequest::fromGlobals());
$viewMode = $viewModeSwitcher->getViewMode();
if ($viewMode === 'minimal' || $viewMode === 'grid') {
$hasLimitParam = Url::fromRequest()->hasParam($limitControl->getLimitParam());
if ($paginationControl->getDefaultPageSize() <= LimitControl::DEFAULT_LIMIT && ! $hasLimitParam) {
$paginationControl->setDefaultPageSize($paginationControl->getDefaultPageSize() * 2);
$limitControl->setDefaultLimit($limitControl->getDefaultLimit() * 2);
$paginationControl->apply();
}
}
$requestPath = $session->get('request_path');
if ($requestPath && $requestPath !== $requestRoute) {
$session->clear();
}
return $viewModeSwitcher;
}
/**
* Process a search request
*
* @param Query $query
* @param array $additionalColumns
*
* @return void
*/
public function handleSearchRequest(Query $query, array $additionalColumns = [])
{
$q = trim($this->params->shift('q', ''), ' *');
if (! $q) {
return;
}
$filter = Filter::any();
$this->prepareSearchFilter($query, $q, $filter, $additionalColumns);
$redirectUrl = Url::fromRequest();
$redirectUrl->setParams($this->params)->setFilter($filter);
$this->getResponse()->redirectAndExit($redirectUrl);
}
/**
* Prepare the given search filter
*
* @param Query $query
* @param string $search
* @param Filter\Any $filter
* @param array $additionalColumns
*
* @return void
*/
protected function prepareSearchFilter(Query $query, string $search, Filter\Any $filter, array $additionalColumns)
{
$columns = array_merge($query->getModel()->getSearchColumns(), $additionalColumns);
foreach ($columns as $column) {
if (strpos($column, '.') === false) {
$column = $query->getResolver()->qualifyColumn($column, $query->getModel()->getTableName());
}
$filter->add(Filter::like($column, "*$search*"));
}
}
/**
* Require permission to access the given route
*
* @param string $name If NULL, the current controller name is used
*
* @throws SecurityException
*/
public function assertRouteAccess(string $name = null)
{
if (! $name) {
$name = $this->getRequest()->getControllerName();
}
if (! $this->isPermittedRoute($name)) {
throw new SecurityException('No permission to access this route');
}
}
public function export(Query ...$queries)
{
if ($this->format === 'sql') {
foreach ($queries as $query) {
list($sql, $values) = $query->getDb()->getQueryBuilder()->assembleSelect($query->assembleSelect());
$unused = [];
foreach ($values as $value) {
$pos = strpos($sql, '?');
if ($pos !== false) {
if (is_string($value)) {
$value = "'" . $value . "'";
}
$sql = substr_replace($sql, $value, $pos, 1);
} else {
$unused[] = $value;
}
}
if (! empty($unused)) {
$sql .= ' /* Unused values: "' . join('", "', $unused) . '" */';
}
$this->content->add(Html::tag('pre', $sql));
}
return true;
}
// It only makes sense to export a single result to CSV or JSON
$query = $queries[0];
// No matter the format, a limit should only apply if set
if ($this->format !== null) {
if (! Url::fromRequest()->hasParam('limit')) {
$query->limit(null)
->offset(null);
}
}
if ($this->format === 'json' || $this->format === 'csv') {
$response = $this->getResponse();
$fileName = $this->view->title;
ob_end_clean();
Environment::raiseExecutionTime();
if ($this->format === 'json') {
$response
->setHeader('Content-Type', 'application/json')
->setHeader('Cache-Control', 'no-store')
->setHeader(
'Content-Disposition',
'attachment; filename=' . $fileName . '.json'
)
->sendResponse();
JsonResultSet::stream($query);
} else {
$response
->setHeader('Content-Type', 'text/csv')
->setHeader('Cache-Control', 'no-store')
->setHeader(
'Content-Disposition',
'attachment; filename=' . $fileName . '.csv'
)
->sendResponse();
CsvResultSet::stream($query);
}
}
$this->getTabs()->enableDataExports();
}
/**
* @todo Remove once support for Icinga Web 2 v2.9.x is dropped
*/
protected function sendAsPdf()
{
if (! Icinga::app()->getModuleManager()->has('pdfexport')) {
throw new ConfigurationError('The pdfexport module is required for exports to PDF');
}
if (version_compare(Version::VERSION, '2.10.0', '>=')) {
parent::sendAsPdf();
return;
}
putenv('ICINGAWEB_EXPORT_FORMAT=pdf');
Environment::raiseMemoryLimit('512M');
Environment::raiseExecutionTime(300);
$time = DateFormatter::formatDateTime(time());
$doc = (new PrintableHtmlDocument())
->setTitle($this->view->title ?? '')
->setHeader(Html::wantHtml([
Html::tag('span', ['class' => 'title']),
Html::tag('time', null, $time)
]))
->setFooter(Html::wantHtml([
Html::tag('span', null, [
t('Page') . ' ',
Html::tag('span', ['class' => 'pageNumber']),
' / ',
Html::tag('span', ['class' => 'totalPages'])
]),
Html::tag('p', null, Url::fromRequest()->setParams($this->params))
]))
->addHtml($this->content);
$doc->getAttributes()->add('class', 'icinga-module module-icingadb');
Pdfexport::first()->streamPdfFromHtml($doc, sprintf(
'%s-%s',
$this->view->title ?: $this->getRequest()->getActionName(),
$time
));
}
public function dispatch($action)
{
// Notify helpers of action preDispatch state
$this->_helper->notifyPreDispatch();
$this->preDispatch();
if ($this->getRequest()->isDispatched()) {
// If pre-dispatch hooks introduced a redirect then stop dispatch
// @see ZF-7496
if (! $this->getResponse()->isRedirect()) {
$interceptable = $this->$action();
if ($interceptable instanceof Generator) {
foreach ($interceptable as $stopSignal) {
if ($stopSignal === true) {
$this->formatProcessed = true;
break;
}
}
}
}
$this->postDispatch();
}
// whats actually important here is that this action controller is
// shutting down, regardless of dispatching; notify the helpers of this
// state
$this->_helper->notifyPostDispatch();
}
protected function addContent(ValidHtml $content)
{
if ($content instanceof StateItemTable) {
$this->content->getAttributes()->add('class', 'full-height');
}
return parent::addContent($content);
}
public function filter(Query $query, Filter\Rule $filter = null): self
{
if ($this->format !== 'sql' || $this->hasPermission('config/authentication/roles/show')) {
$this->applyRestrictions($query);
}
if ($query instanceof UnionQuery) {
foreach ($query->getUnions() as $query) {
$query->filter($filter ?: $this->getFilter());
}
} else {
$query->filter($filter ?: $this->getFilter());
}
return $this;
}
public function preDispatch()
{
parent::preDispatch();
$this->format = $this->params->shift(
'format',
$this->getRequest()->isApiRequest()
? 'json'
: null
);
}
public function postDispatch()
{
if (! $this->formatProcessed && $this->format !== null && $this->format !== 'pdf') {
// The purpose of this is not only to show that a requested format isn't supported.
// It's main purpose is to not allow to bypass restrictions with `?format=sql` as
// it may be possible that an action applies restrictions, but doesn't support any
// output formats. Since the restrictions are bypassed in method `$this->filter()`
// for the SQL output format and the actual format processing is part of a different
// method (`$this->export()`) which needs to be called explicitly by an action,
// it's otherwise possible for bad individuals to access unrestricted data.
$this->httpBadRequest(t('This route does not support the requested output format'));
}
parent::postDispatch();
}
protected function moduleInit()
{
/** @var Web $app */
$app = Icinga::app();
$app->getFrontController()
->getPlugin('Zend_Controller_Plugin_ErrorHandler')
->setErrorHandlerModule('icingadb');
}
}