mirror of
https://github.com/silverstripe/silverstripe-subsites
synced 2024-10-22 11:05:55 +02:00
364 lines
13 KiB
PHP
364 lines
13 KiB
PHP
<?php
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namespace SilverStripe\Subsites\Extensions;
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use SilverStripe\Admin\CMSMenu;
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use SilverStripe\CMS\Model\SiteTree;
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use SilverStripe\Control\Controller;
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use SilverStripe\Control\Session;
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use SilverStripe\Core\Config\Config;
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use SilverStripe\Core\Convert;
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use SilverStripe\Core\Extension;
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use SilverStripe\Forms\HiddenField;
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use SilverStripe\ORM\ArrayList;
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use SilverStripe\ORM\DataObject;
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use SilverStripe\Security\Member;
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use SilverStripe\Security\Permission;
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use SilverStripe\Security\Security;
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use SilverStripe\Subsites\Model\Subsite;
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use SilverStripe\View\ArrayData;
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use SilverStripe\View\Requirements;
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/**
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* Decorator designed to add subsites support to LeftAndMain
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*
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* @package subsites
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*/
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class LeftAndMainSubsites extends Extension
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{
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private static $allowed_actions = ['CopyToSubsite'];
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/**
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* Normally SubsiteID=0 on a DataObject means it is only accessible from the special "main site".
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* However in some situations SubsiteID=0 will be understood as a "globally accessible" object in which
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* case this property is set to true (i.e. in AssetAdmin).
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*/
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private static $treats_subsite_0_as_global = false;
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public function init()
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{
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Requirements::css('subsites/css/LeftAndMain_Subsites.css');
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Requirements::javascript('subsites/javascript/LeftAndMain_Subsites.js');
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Requirements::javascript('subsites/javascript/VirtualPage_Subsites.js');
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}
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/**
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* Set the title of the CMS tree
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*/
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public function getCMSTreeTitle()
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{
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$subsite = Subsite::currentSubsite();
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return $subsite ? Convert::raw2xml($subsite->Title) : _t('LeftAndMain.SITECONTENTLEFT');
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}
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public function updatePageOptions(&$fields)
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{
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$fields->push(new HiddenField('SubsiteID', 'SubsiteID', Subsite::currentSubsiteID()));
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}
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/**
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* Find all subsites accessible for current user on this controller.
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*
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* @param bool $includeMainSite
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* @param string $mainSiteTitle
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* @param null $member
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* @return ArrayList of <a href='psi_element://Subsite'>Subsite</a> instances.
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* instances.
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*/
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public function sectionSites($includeMainSite = true, $mainSiteTitle = 'Main site', $member = null)
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{
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if ($mainSiteTitle == 'Main site') {
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$mainSiteTitle = _t('Subsites.MainSiteTitle', 'Main site');
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}
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// Rationalise member arguments
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if (!$member) {
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$member = Member::currentUser();
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}
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if (!$member) {
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return new ArrayList();
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}
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if (!is_object($member)) {
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$member = DataObject::get_by_id(Member::class, $member);
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}
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// Collect permissions - honour the LeftAndMain::required_permission_codes, current model requires
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// us to check if the user satisfies ALL permissions. Code partly copied from LeftAndMain::canView.
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$codes = [];
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$extraCodes = Config::inst()->get($this->owner->class, 'required_permission_codes');
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if ($extraCodes !== false) {
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if ($extraCodes) {
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$codes = array_merge($codes, (array)$extraCodes);
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} else {
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$codes[] = "CMS_ACCESS_{$this->owner->class}";
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}
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} else {
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// Check overriden - all subsites accessible.
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return Subsite::all_sites();
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}
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// Find subsites satisfying all permissions for the Member.
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$codesPerSite = [];
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$sitesArray = [];
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foreach ($codes as $code) {
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$sites = Subsite::accessible_sites($code, $includeMainSite, $mainSiteTitle, $member);
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foreach ($sites as $site) {
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// Build the structure for checking how many codes match.
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$codesPerSite[$site->ID][$code] = true;
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// Retain Subsite objects for later.
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$sitesArray[$site->ID] = $site;
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}
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}
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// Find sites that satisfy all codes conjuncitvely.
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$accessibleSites = new ArrayList();
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foreach ($codesPerSite as $siteID => $siteCodes) {
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if (count($siteCodes) == count($codes)) {
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$accessibleSites->push($sitesArray[$siteID]);
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}
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}
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return $accessibleSites;
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}
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/*
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* Returns a list of the subsites accessible to the current user.
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* It's enough for any section to be accessible for the section to be included.
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*/
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public function Subsites()
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{
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return Subsite::all_accessible_sites();
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}
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/*
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* Generates a list of subsites with the data needed to
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* produce a dropdown site switcher
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* @return ArrayList
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*/
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public function ListSubsites()
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{
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$list = $this->Subsites();
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$currentSubsiteID = Subsite::currentSubsiteID();
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if ($list == null || $list->count() == 1 && $list->first()->DefaultSite == true) {
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return false;
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}
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Requirements::javascript('subsites/javascript/LeftAndMain_Subsites.js');
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$output = new ArrayList();
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foreach ($list as $subsite) {
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$CurrentState = $subsite->ID == $currentSubsiteID ? 'selected' : '';
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$output->push(new ArrayData([
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'CurrentState' => $CurrentState,
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'ID' => $subsite->ID,
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'Title' => Convert::raw2xml($subsite->Title)
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]));
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}
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return $output;
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}
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public function alternateMenuDisplayCheck($controllerName)
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{
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if (!class_exists($controllerName)) {
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return false;
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}
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// Check subsite support.
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if (Subsite::currentSubsiteID() == 0) {
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// Main site always supports everything.
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return true;
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}
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// It's not necessary to check access permissions here. Framework calls canView on the controller,
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// which in turn uses the Permission API which is augmented by our GroupSubsites.
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$controller = singleton($controllerName);
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return $controller->hasMethod('subsiteCMSShowInMenu') && $controller->subsiteCMSShowInMenu();
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}
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public function CanAddSubsites()
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{
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return Permission::check('ADMIN', 'any', null, 'all');
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}
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/**
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* Helper for testing if the subsite should be adjusted.
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* @param $adminClass
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* @param $recordSubsiteID
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* @param $currentSubsiteID
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* @return bool
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*/
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public function shouldChangeSubsite($adminClass, $recordSubsiteID, $currentSubsiteID)
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{
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if (Config::inst()->get($adminClass, 'treats_subsite_0_as_global') && $recordSubsiteID == 0) {
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return false;
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}
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if ($recordSubsiteID != $currentSubsiteID) {
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return true;
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}
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return false;
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}
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/**
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* Check if the current controller is accessible for this user on this subsite.
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*/
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public function canAccess()
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{
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// Admin can access everything, no point in checking.
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$member = Member::currentUser();
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if ($member &&
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(
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Permission::checkMember($member, 'ADMIN') || // 'Full administrative rights' in SecurityAdmin
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Permission::checkMember($member,
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'CMS_ACCESS_LeftAndMain') // 'Access to all CMS sections' in SecurityAdmin
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)
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) {
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return true;
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}
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// Check if we have access to current section on the current subsite.
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$accessibleSites = $this->owner->sectionSites(true, 'Main site', $member);
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return $accessibleSites->count() && $accessibleSites->find('ID', Subsite::currentSubsiteID());
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}
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/**
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* Prevent accessing disallowed resources. This happens after onBeforeInit has executed,
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* so all redirections should've already taken place.
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*/
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public function alternateAccessCheck()
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{
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return $this->owner->canAccess();
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}
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/**
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* Redirect the user to something accessible if the current section/subsite is forbidden.
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*
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* This is done via onBeforeInit as it needs to be done before the LeftAndMain::init has a
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* chance to forbids access via alternateAccessCheck.
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*
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* If we need to change the subsite we force the redirection to /admin/ so the frontend is
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* fully re-synchronised with the internal session. This is better than risking some panels
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* showing data from another subsite.
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*/
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public function onBeforeInit()
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{
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// We are accessing the CMS, so we need to let Subsites know we will be using the session.
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Subsite::$use_session_subsiteid = true;
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// FIRST, check if we need to change subsites due to the URL.
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// Catch forced subsite changes that need to cause CMS reloads.
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if (isset($_GET['SubsiteID'])) {
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// Clear current page when subsite changes (or is set for the first time)
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if (!Session::get('SubsiteID') || $_GET['SubsiteID'] != Session::get('SubsiteID')) {
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Session::clear("{$this->owner->class}.currentPage");
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}
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// Update current subsite in session
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Subsite::changeSubsite($_GET['SubsiteID']);
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//Redirect to clear the current page
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if ($this->owner->canView(Member::currentUser())) {
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//Redirect to clear the current page
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return $this->owner->redirect($this->owner->Link());
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}
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//Redirect to the default CMS section
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return $this->owner->redirect('admin/');
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}
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// Automatically redirect the session to appropriate subsite when requesting a record.
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// This is needed to properly initialise the session in situations where someone opens the CMS via a link.
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$record = $this->owner->currentPage();
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if ($record
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&& isset($record->SubsiteID, $this->owner->urlParams['ID'])
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&& is_numeric($record->SubsiteID)
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&& $this->shouldChangeSubsite($this->owner->class, $record->SubsiteID, Subsite::currentSubsiteID())
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) {
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// Update current subsite in session
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Subsite::changeSubsite($record->SubsiteID);
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if ($this->owner->canView(Member::currentUser())) {
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//Redirect to clear the current page
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return $this->owner->redirect($this->owner->Link());
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}
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//Redirect to the default CMS section
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return $this->owner->redirect('admin/');
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}
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// SECOND, check if we need to change subsites due to lack of permissions.
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if (!$this->owner->canAccess()) {
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$member = Member::currentUser();
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// Current section is not accessible, try at least to stick to the same subsite.
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$menu = CMSMenu::get_menu_items();
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foreach ($menu as $candidate) {
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if ($candidate->controller && $candidate->controller != $this->owner->class) {
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$accessibleSites = singleton($candidate->controller)->sectionSites(true, 'Main site', $member);
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if ($accessibleSites->count() && $accessibleSites->find('ID', Subsite::currentSubsiteID())) {
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// Section is accessible, redirect there.
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return $this->owner->redirect(singleton($candidate->controller)->Link());
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}
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}
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}
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// If no section is available, look for other accessible subsites.
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foreach ($menu as $candidate) {
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if ($candidate->controller) {
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$accessibleSites = singleton($candidate->controller)->sectionSites(true, 'Main site', $member);
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if ($accessibleSites->count()) {
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Subsite::changeSubsite($accessibleSites->First()->ID);
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return $this->owner->redirect(singleton($candidate->controller)->Link());
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}
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}
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}
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// We have not found any accessible section or subsite. User should be denied access.
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return Security::permissionFailure($this->owner);
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}
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// Current site is accessible. Allow through.
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return;
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}
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public function augmentNewSiteTreeItem(&$item)
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{
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$item->SubsiteID = isset($_POST['SubsiteID']) ? $_POST['SubsiteID'] : Subsite::currentSubsiteID();
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}
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public function onAfterSave($record)
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{
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if ($record->hasMethod('NormalRelated') && ($record->NormalRelated() || $record->ReverseRelated())) {
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$this->owner->response->addHeader('X-Status',
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rawurlencode(_t('LeftAndMainSubsites.Saved', 'Saved, please update related pages.')));
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}
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}
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/**
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* @param array $data
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* @param Form $form
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*/
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public function copytosubsite($data, $form)
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{
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$page = DataObject::get_by_id(SiteTree::class, $data['ID']);
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$subsite = DataObject::get_by_id('Subsite', $data['CopyToSubsiteID']);
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$includeChildren = isset($data['CopyToSubsiteWithChildren']) ? $data['CopyToSubsiteWithChildren'] : false;
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$newPage = $page->duplicateToSubsite($subsite->ID, $includeChildren);
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$response = $this->owner->getResponse();
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$response->addHeader('X-Reload', true);
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return $this->owner->redirect(Controller::join_links(
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$this->owner->Link('show'),
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$newPage->ID
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));
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}
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}
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