189 lines
6.6 KiB
PHP
189 lines
6.6 KiB
PHP
<?php
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/**
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* Extension for the Group object to add subsites support
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*
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* @package subsites
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*/
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class GroupSubsites extends DataExtension implements PermissionProvider {
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private static $db = array(
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'AccessAllSubsites' => 'Boolean'
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);
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private static $many_many = array(
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'Subsites' => 'Subsite'
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);
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private static $defaults = array(
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'AccessAllSubsites' => true
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);
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/**
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* Migrations for GroupSubsites data.
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*/
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function requireDefaultRecords() {
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// Migration for Group.SubsiteID data from when Groups only had a single subsite
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$groupFields = DB::field_list('Group');
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// Detection of SubsiteID field is the trigger for old-style-subsiteID migration
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if(isset($groupFields['SubsiteID'])) {
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// Migrate subsite-specific data
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DB::query('INSERT INTO "Group_Subsites" ("GroupID", "SubsiteID")
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SELECT "ID", "SubsiteID" FROM "Group" WHERE "SubsiteID" > 0');
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// Migrate global-access data
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DB::query('UPDATE "Group" SET "AccessAllSubsites" = 1 WHERE "SubsiteID" = 0');
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// Move the field out of the way so that this migration doesn't get executed again
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DB::get_schema()->renameField('Group', 'SubsiteID', '_obsolete_SubsiteID');
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// No subsite access on anything means that we've just installed the subsites module.
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// Make all previous groups global-access groups
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} else if(!DB::query('SELECT "Group"."ID" FROM "Group"
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LEFT JOIN "Group_Subsites" ON "Group_Subsites"."GroupID" = "Group"."ID" AND "Group_Subsites"."SubsiteID" > 0
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WHERE "AccessAllSubsites" = 1
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OR "Group_Subsites"."GroupID" IS NOT NULL ')->value()) {
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DB::query('UPDATE "Group" SET "AccessAllSubsites" = 1');
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}
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}
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function updateCMSFields(FieldList $fields) {
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if($this->owner->canEdit() ){
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// i18n tab
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$fields->findOrMakeTab('Root.Subsites',_t('GroupSubsites.SECURITYTABTITLE','Subsites'));
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$subsites = Subsite::accessible_sites(array('ADMIN', 'SECURITY_SUBSITE_GROUP'), true);
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$subsiteMap = $subsites->map();
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// Prevent XSS injection
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$subsiteMap = Convert::raw2xml($subsiteMap);
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// Interface is different if you have the rights to modify subsite group values on
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// all subsites
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if(isset($subsiteMap[0])) {
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$fields->addFieldToTab("Root.Subsites", new OptionsetField("AccessAllSubsites",
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_t('GroupSubsites.ACCESSRADIOTITLE', 'Give this group access to'),
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array(
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1 => _t('GroupSubsites.ACCESSALL', "All subsites"),
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0 => _t('GroupSubsites.ACCESSONLY', "Only these subsites"),
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)
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));
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unset($subsiteMap[0]);
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$fields->addFieldToTab("Root.Subsites", new CheckboxSetField("Subsites", "",
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$subsiteMap));
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} else {
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if (sizeof($subsiteMap) <= 1) {
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$fields->addFieldToTab("Root.Subsites", new ReadonlyField("SubsitesHuman",
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_t('GroupSubsites.ACCESSRADIOTITLE', 'Give this group access to'),
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reset($subsiteMap)));
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} else {
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$fields->addFieldToTab("Root.Subsites", new CheckboxSetField("Subsites",
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_t('GroupSubsites.ACCESSRADIOTITLE', 'Give this group access to'),
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$subsiteMap));
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}
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}
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}
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}
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/**
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* If this group belongs to a subsite,
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* append the subsites title to the group title
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* to make it easy to distinguish in the tree-view
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* of the security admin interface.
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*/
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function alternateTreeTitle() {
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if($this->owner->AccessAllSubsites) {
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$title = _t('GroupSubsites.GlobalGroup', 'global group');
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return htmlspecialchars($this->owner->Title, ENT_QUOTES) . ' <i>(' . $title . ')</i>';
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} else {
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$subsites = Convert::raw2xml(implode(", ", $this->owner->Subsites()->column('Title')));
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return htmlspecialchars($this->owner->Title) . " <i>($subsites)</i>";
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}
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}
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/**
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* Update any requests to limit the results to the current site
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*/
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public function augmentSQL(SQLSelect $query) {
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if(Subsite::$disable_subsite_filter) return;
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if(Cookie::get('noSubsiteFilter') == 'true') return;
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// If you're querying by ID, ignore the sub-site - this is a bit ugly...
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if(!$query->filtersOnID()) {
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/*if($context = DataObject::context_obj()) $subsiteID = (int)$context->SubsiteID;
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else */$subsiteID = (int)Subsite::currentSubsiteID();
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// Don't filter by Group_Subsites if we've already done that
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$hasGroupSubsites = false;
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foreach($query->getFrom() as $item) {
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if((is_array($item) && strpos($item['table'], 'Group_Subsites')!==false) || (!is_array($item) && strpos($item, 'Group_Subsites')!==false)) {
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$hasGroupSubsites = true;
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break;
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}
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}
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if(!$hasGroupSubsites) {
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if($subsiteID) {
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$query->addLeftJoin("Group_Subsites", "\"Group_Subsites\".\"GroupID\"
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= \"Group\".\"ID\" AND \"Group_Subsites\".\"SubsiteID\" = $subsiteID");
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$query->addWhere("(\"Group_Subsites\".\"SubsiteID\" IS NOT NULL OR
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\"Group\".\"AccessAllSubsites\" = 1)");
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} else {
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$query->addWhere("\"Group\".\"AccessAllSubsites\" = 1");
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}
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}
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// WORKAROUND for databases that complain about an ORDER BY when the column wasn't selected (e.g. SQL Server)
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$select=$query->getSelect();
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if(isset($select[0]) && !$select[0] == 'COUNT(*)') {
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$query->orderby = "\"AccessAllSubsites\" DESC" . ($query->orderby ? ', ' : '') . $query->orderby;
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}
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}
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}
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function onBeforeWrite() {
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// New record test approximated by checking whether the ID has changed.
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// Note also that the after write test is only used when we're *not* on a subsite
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if($this->owner->isChanged('ID') && !Subsite::currentSubsiteID()) {
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$this->owner->AccessAllSubsites = 1;
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}
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}
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function onAfterWrite() {
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// New record test approximated by checking whether the ID has changed.
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// Note also that the after write test is only used when we're on a subsite
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if($this->owner->isChanged('ID') && $currentSubsiteID = Subsite::currentSubsiteID()) {
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$subsites = $this->owner->Subsites();
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$subsites->add($currentSubsiteID);
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}
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}
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function alternateCanEdit() {
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// Find the sites that this group belongs to and the sites where we have appropriate perm.
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$accessibleSites = Subsite::accessible_sites('CMS_ACCESS_SecurityAdmin')->column('ID');
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$linkedSites = $this->owner->Subsites()->column('ID');
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// We are allowed to access this site if at we have CMS_ACCESS_SecurityAdmin permission on
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// at least one of the sites
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return (bool)array_intersect($accessibleSites, $linkedSites);
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}
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function providePermissions() {
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return array(
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'SECURITY_SUBSITE_GROUP' => array(
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'name' => _t('GroupSubsites.MANAGE_SUBSITES', 'Manage subsites for groups'),
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'category' => _t('Permissions.PERMISSIONS_CATEGORY', 'Roles and access permissions'),
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'help' => _t('GroupSubsites.MANAGE_SUBSITES_HELP', 'Ability to limit the permissions for a group to one or more subsites.'),
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'sort' => 200
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)
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);
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}
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}
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?>
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