extensions/common/permissions/permissions_info.cc

   1 // Copyright 2013 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 "extensions/common/permissions/permissions_info.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/logging.h"
   9 #include "base/stl_util.h"
  10 #include "base/strings/string_util.h"
  11
  12 namespace extensions {
  13
  14 static base::LazyInstance<PermissionsInfo> g_permissions_info =
  15     LAZY_INSTANCE_INITIALIZER;
  16
  17 // static
  18 PermissionsInfo* PermissionsInfo::GetInstance() {
  19   return g_permissions_info.Pointer();
  20 }
  21
  22 void PermissionsInfo::AddProvider(const PermissionsProvider& provider) {
  23   std::vector<APIPermissionInfo*> permissions = provider.GetAllPermissions();
  24   std::vector<PermissionsProvider::AliasInfo> aliases =
  25       provider.GetAllAliases();
  26
  27   for (size_t i = 0; i < permissions.size(); ++i)
  28     RegisterPermission(permissions[i]);
  29   for (size_t i = 0; i < aliases.size(); ++i)
  30     RegisterAlias(aliases[i].name, aliases[i].alias);
  31 }
  32
  33 const APIPermissionInfo* PermissionsInfo::GetByID(
  34     APIPermission::ID id) const {
  35   IDMap::const_iterator i = id_map_.find(id);
  36   return (i == id_map_.end()) ? NULL : i->second;
  37 }
  38
  39 const APIPermissionInfo* PermissionsInfo::GetByName(
  40     const std::string& name) const {
  41   NameMap::const_iterator i = name_map_.find(name);
  42   return (i == name_map_.end()) ? NULL : i->second;
  43 }
  44
  45 APIPermissionSet PermissionsInfo::GetAll() const {
  46   APIPermissionSet permissions;
  47   for (IDMap::const_iterator i = id_map_.begin(); i != id_map_.end(); ++i)
  48     permissions.insert(i->second->id());
  49   return permissions;
  50 }
  51
  52 APIPermissionSet PermissionsInfo::GetAllByName(
  53     const std::set<std::string>& permission_names) const {
  54   APIPermissionSet permissions;
  55   for (std::set<std::string>::const_iterator i = permission_names.begin();
  56        i != permission_names.end(); ++i) {
  57     const APIPermissionInfo* permission_info = GetByName(*i);
  58     if (permission_info)
  59       permissions.insert(permission_info->id());
  60   }
  61   return permissions;
  62 }
  63
  64 bool PermissionsInfo::HasChildPermissions(const std::string& name) const {
  65   NameMap::const_iterator i = name_map_.lower_bound(name + '.');
  66   if (i == name_map_.end()) return false;
  67   return StartsWithASCII(i->first, name + '.', true);
  68 }
  69
  70 PermissionsInfo::PermissionsInfo()
  71     : permission_count_(0) {
  72 }
  73
  74 PermissionsInfo::~PermissionsInfo() {
  75   STLDeleteContainerPairSecondPointers(id_map_.begin(), id_map_.end());
  76 }
  77
  78 void PermissionsInfo::RegisterAlias(
  79     const char* name,
  80     const char* alias) {
  81   DCHECK(ContainsKey(name_map_, name));
  82   DCHECK(!ContainsKey(name_map_, alias));
  83   name_map_[alias] = name_map_[name];
  84 }
  85
  86 void PermissionsInfo::RegisterPermission(APIPermissionInfo* permission) {
  87   DCHECK(!ContainsKey(id_map_, permission->id()));
  88   DCHECK(!ContainsKey(name_map_, permission->name()));
  89
  90   id_map_[permission->id()] = permission;
  91   name_map_[permission->name()] = permission;
  92
  93   permission_count_++;
  94 }
  95
  96 }  // namespace extensions