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<?php
class Page_PermissionManager extends Page
{
/**
* Called before any page rendering happens - early hook to check parameters etc.
*/
protected function doPreprocess()
{
User::load();
if (!User::isLoggedIn()) {
Message::addError('main.no-permission');
Util::redirect('?do=Main'); // does not return
}
$action = Request::any('action', 'show', 'string');
if ($action === 'addRoleToUser') {
$users = Request::post('users', '');
$roles = Request::post('roles', '');
PermissionDbUpdate::addRoleToUser($users, $roles);
} elseif ($action === 'removeRoleFromUser') {
$users = Request::post('users', '');
$roles = Request::post('roles', '');
PermissionDbUpdate::removeRoleFromUser($users, $roles);
} elseif ($action === 'deleteRole') {
$id = Request::post('deleteId', false, 'string');
PermissionDbUpdate::deleteRole($id);
} elseif ($action === 'saveRole') {
$roleID = Request::post("roleid", false);
$rolename = Request::post("rolename");
$locations = self::processLocations(Request::post("locations"));
$permissions = self::processPermissions(Request::post("permissions"));
PermissionDbUpdate::saveRole($rolename, $locations, $permissions, $roleID);
}
}
/**
* Menu etc. has already been generated, now it's time to generate page content.
*/
protected function doRender()
{
$show = Request::get("show", "roles");
// switch between tables, but always show menu to switch tables
if ( $show === 'roles' || $show === 'users' || $show === 'locations' ) {
// get menu button colors
$buttonColors = array();
$buttonColors['rolesButtonClass'] = $show === 'roles' ? 'active' : '';
$buttonColors['usersButtonClass'] = $show === 'users' ? 'active' : '';
$buttonColors['locationsButtonClass'] = $show === 'locations' ? 'active' : '';
Render::addtemplate('_page', $buttonColors);
if ($show === "roles") {
$data = array("roles" => GetPermissionData::getRoles());
Render::addTemplate('rolestable', $data);
} elseif ($show === "users") {
$data = array("user" => GetPermissionData::getUserData(), "roles" => GetPermissionData::getRoles());
Render::addTemplate('userstable', $data);
} elseif ($show === "locations") {
$data = array("location" => GetPermissionData::getLocationData(), "allroles" => GetPermissionData::getRoles());
Render::addTemplate('locationstable', $data);
}
} elseif ($show === "roleEditor") {
$data = array("cancelShow" => Request::get("cancel", "roles"));
$selectedPermissions = array();
$selectedLocations = array();
$roleid = Request::get("roleid", false);
if ($roleid) {
$roleData = GetPermissionData::getRoleData($roleid);
$data["roleid"] = $roleid;
$data["rolename"] = $roleData["rolename"];
$selectedPermissions = $roleData["permissions"];
$selectedLocations = $roleData["locations"];
}
$data["permissionHTML"] = self::generatePermissionHTML(PermissionUtil::getPermissions(), $selectedPermissions);
$data["locationHTML"] = self::generateLocationHTML(Location::getTree(), $selectedLocations);
Render::addTemplate('roleeditor', $data);
}
}
/**
* Recursively generate HTML code for the permission selection tree.
*
* @param array $permissions the permission tree
* @param array $selectedPermissions permissions that should be preselected
* @param array $selectAll true if all pemrissions should be preselected, false if only those in $selectedPermissions
* @param array $permString the prefix permission string with which all permissions in the permission tree should start
* @return string generated html code
*/
private static function generatePermissionHTML($permissions, $selectedPermissions = array(), $selectAll = false, $permString = "")
{
$res = "";
$toplevel = $permString == "";
if ($toplevel && in_array("*", $selectedPermissions)) $selectAll = true;
foreach ($permissions as $k => $v) {
$leaf = !is_array($v);
$nextPermString = $permString ? $permString.".".$k : $k;
$id = $leaf ? $nextPermString : $nextPermString.".*";
$selected = $selectAll || in_array($id, $selectedPermissions);
$res .= Render::parse("treenode",
array("id" => $id,
"name" => $toplevel ? Module::get($k)->getDisplayName() : $k,
"toplevel" => $toplevel,
"checkboxname" => "permissions",
"selected" => $selected,
"HTML" => $leaf ? "" : self::generatePermissionHTML($v, $selectedPermissions, $selected, $nextPermString),
"description" => $leaf ? $v : ""));
}
if ($toplevel) {
$res = Render::parse("treepanel",
array("id" => "*",
"name" => Dictionary::translateFile("template-tags", "lang_permissions"),
"checkboxname" => "permissions",
"selected" => $selectAll,
"HTML" => $res));
}
return $res;
}
/**
* Recursively generate HTML code for the location selection tree.
*
* @param array $locations the location tree
* @param array $selectedLocations locations that should be preselected
* @param array $selectAll true if all locations should be preselected, false if only those in $selectedLocations
* @param array $toplevel true if the location tree are the children of the root location, false if not
* @return string generated html code
*/
private static function generateLocationHTML($locations, $selectedLocations = array(), $selectAll = false, $toplevel = true)
{
$res = "";
if ($toplevel && in_array(0, $selectedLocations)) $selectAll = true;
foreach ($locations as $location) {
$selected = $selectAll || in_array($location["locationid"], $selectedLocations);
$res .= Render::parse("treenode",
array("id" => $location["locationid"],
"name" => $location["locationname"],
"toplevel" => $toplevel,
"checkboxname" => "locations",
"selected" => $selected,
"HTML" => array_key_exists("children", $location) ?
self::generateLocationHTML($location["children"], $selectedLocations, $selected, false) : ""));
}
if ($toplevel) {
$res = Render::parse("treepanel",
array("id" => 0,
"name" => Dictionary::translateFile("template-tags", "lang_locations"),
"checkboxname" => "locations",
"selected" => $selectAll,
"HTML" => $res));
}
return $res;
}
/**
* Remove locations that are already covered by parent locations from the array.
*
* @param array $locations the locationid array
* @return array the locationid array without redundant locationids
*/
private static function processLocations($locations)
{
if (in_array(0, $locations)) return array(NULL);
$result = array();
foreach ($locations as $location) {
$rootchain = array_reverse(Location::getLocationRootChain($location));
foreach ($rootchain as $l) {
if (in_array($l, $result)) break;
if (in_array($l, $locations)) {
$result[] = $l;
break;
}
}
}
return $result;
}
/**
* Remove permissions that are already covered by parent permissions from the array.
*
* @param array $permissions the permissionid array
* @return array the permissionid array without redundant permissionids
*/
private static function processPermissions($permissions)
{
if (in_array("*", $permissions)) return array("*");
$result = array();
foreach ($permissions as $permission) {
$x =& $result;
foreach (explode(".", $permission) as $p) {
$x =& $x[$p];
}
}
return self::extractPermissions($result);
}
/**
* Convert a multidimensional array of permissions to a flat array of permissions.
*
* @param array $permissions multidimensional array of permissionids
* @return array flat array of permissionids
*/
private static function extractPermissions($permissions)
{
$result = array();
foreach ($permissions as $permission => $a) {
if (is_array($a)) {
if (array_key_exists("*", $a)) {
$result[] = $permission.".*";
} else {
foreach (self::extractPermissions($a) as $subPermission) {
$result[] = $permission.".".$subPermission;
}
}
} else {
$result[] = $permission;
}
}
return $result;
}
}
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