15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_permissions.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_switches.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ppapi { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 13a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)PpapiPermissions::PpapiPermissions() : permissions_(0) {} 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 15a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)PpapiPermissions::PpapiPermissions(uint32 perms) : permissions_(perms) {} 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 17a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)PpapiPermissions::~PpapiPermissions() {} 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PpapiPermissions PpapiPermissions::AllPermissions() { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PpapiPermissions(PERMISSION_ALL_BITS); 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PpapiPermissions PpapiPermissions::GetForCommandLine(uint32 base_perms) { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32 additional_permissions = 0; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if !defined(OS_NACL) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Testing permissions. The testing flag implies all permissions since the 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // test plugin needs to test all interfaces. 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (CommandLine::ForCurrentProcess()->HasSwitch( 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kEnablePepperTesting)) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) additional_permissions |= ppapi::PERMISSION_ALL_BITS; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PpapiPermissions(base_perms | additional_permissions); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PpapiPermissions::HasPermission(Permission perm) const { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check that "perm" is a power of two to make sure the caller didn't set 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // more than one permission bit. We may want to change how permissions are 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // represented in the future so don't want callers making assumptions about 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // bits. 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32 perm_int = static_cast<uint32>(perm); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!perm_int) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; // You always have "no permission". 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK((perm_int & (perm_int - 1)) == 0); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return !!(permissions_ & perm_int); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ppapi 52