1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ppapi/shared_impl/ppapi_permissions.h" 6 7 #include "base/command_line.h" 8 #include "base/logging.h" 9 #include "ppapi/shared_impl/ppapi_switches.h" 10 11 namespace ppapi { 12 PpapiPermissions()13PpapiPermissions::PpapiPermissions() : permissions_(0) {} 14 PpapiPermissions(uint32 perms)15PpapiPermissions::PpapiPermissions(uint32 perms) : permissions_(perms) {} 16 ~PpapiPermissions()17PpapiPermissions::~PpapiPermissions() {} 18 19 // static AllPermissions()20PpapiPermissions PpapiPermissions::AllPermissions() { 21 return PpapiPermissions(PERMISSION_ALL_BITS); 22 } 23 24 // static GetForCommandLine(uint32 base_perms)25PpapiPermissions PpapiPermissions::GetForCommandLine(uint32 base_perms) { 26 uint32 additional_permissions = 0; 27 28 #if !defined(OS_NACL) 29 // Testing permissions. The testing flag implies all permissions since the 30 // test plugin needs to test all interfaces. 31 if (CommandLine::ForCurrentProcess()->HasSwitch( 32 switches::kEnablePepperTesting)) 33 additional_permissions |= ppapi::PERMISSION_ALL_BITS; 34 #endif 35 36 return PpapiPermissions(base_perms | additional_permissions); 37 } 38 HasPermission(Permission perm) const39bool PpapiPermissions::HasPermission(Permission perm) const { 40 // Check that "perm" is a power of two to make sure the caller didn't set 41 // more than one permission bit. We may want to change how permissions are 42 // represented in the future so don't want callers making assumptions about 43 // bits. 44 uint32 perm_int = static_cast<uint32>(perm); 45 if (!perm_int) 46 return true; // You always have "no permission". 47 DCHECK((perm_int & (perm_int - 1)) == 0); 48 return !!(permissions_ & perm_int); 49 } 50 51 } // namespace ppapi 52