extensions/common/permissions/api_permission.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/api_permission.h"
   6
   7 #include "extensions/common/permissions/api_permission_set.h"
   8 #include "ui/base/l10n/l10n_util.h"
   9
  10 namespace {
  11
  12 using extensions::APIPermission;
  13 using extensions::APIPermissionInfo;
  14 using extensions::PermissionMessage;
  15 using extensions::PermissionMessages;
  16
  17 class SimpleAPIPermission : public APIPermission {
  18  public:
  19   explicit SimpleAPIPermission(const APIPermissionInfo* permission)
  20     : APIPermission(permission) { }
  21
  22   ~SimpleAPIPermission() override {}
  23
  24   extensions::PermissionIDSet GetPermissions() const override {
  25     extensions::PermissionIDSet permissions;
  26     permissions.insert(id());
  27     return permissions;
  28   }
  29
  30   bool HasMessages() const override {
  31     return info()->message_id() > PermissionMessage::kNone;
  32   }
  33
  34   PermissionMessages GetMessages() const override {
  35     DCHECK(HasMessages());
  36     PermissionMessages result;
  37     result.push_back(GetMessage_());
  38     return result;
  39   }
  40
  41   bool Check(const APIPermission::CheckParam* param) const override {
  42     return !param;
  43   }
  44
  45   bool Contains(const APIPermission* rhs) const override {
  46     CHECK_EQ(info(), rhs->info());
  47     return true;
  48   }
  49
  50   bool Equal(const APIPermission* rhs) const override {
  51     if (this != rhs)
  52       CHECK_EQ(info(), rhs->info());
  53     return true;
  54   }
  55
  56   bool FromValue(const base::Value* value,
  57                  std::string* /*error*/,
  58                  std::vector<std::string>* /*unhandled_permissions*/) override {
  59     return (value == NULL);
  60   }
  61
  62   scoped_ptr<base::Value> ToValue() const override {
  63     return scoped_ptr<base::Value>();
  64   }
  65
  66   APIPermission* Clone() const override {
  67     return new SimpleAPIPermission(info());
  68   }
  69
  70   APIPermission* Diff(const APIPermission* rhs) const override {
  71     CHECK_EQ(info(), rhs->info());
  72     return NULL;
  73   }
  74
  75   APIPermission* Union(const APIPermission* rhs) const override {
  76     CHECK_EQ(info(), rhs->info());
  77     return new SimpleAPIPermission(info());
  78   }
  79
  80   APIPermission* Intersect(const APIPermission* rhs) const override {
  81     CHECK_EQ(info(), rhs->info());
  82     return new SimpleAPIPermission(info());
  83   }
  84
  85   void Write(IPC::Message* m) const override {}
  86
  87   bool Read(const IPC::Message* m, base::PickleIterator* iter) override {
  88     return true;
  89   }
  90
  91   void Log(std::string* log) const override {}
  92 };
  93
  94 }  // namespace
  95
  96 namespace extensions {
  97
  98 APIPermission::APIPermission(const APIPermissionInfo* info)
  99   : info_(info) {
 100   DCHECK(info_);
 101 }
 102
 103 APIPermission::~APIPermission() { }
 104
 105 APIPermission::ID APIPermission::id() const {
 106   return info()->id();
 107 }
 108
 109 const char* APIPermission::name() const {
 110   return info()->name();
 111 }
 112
 113 PermissionMessage APIPermission::GetMessage_() const {
 114   return info()->GetMessage_();
 115 }
 116
 117 //
 118 // APIPermissionInfo
 119 //
 120
 121 APIPermissionInfo::APIPermissionInfo(const APIPermissionInfo::InitInfo& info)
 122     : id_(info.id),
 123       name_(info.name),
 124       flags_(info.flags),
 125       l10n_message_id_(info.l10n_message_id),
 126       message_id_(info.message_id ? info.message_id : PermissionMessage::kNone),
 127       api_permission_constructor_(info.constructor) {
 128 }
 129
 130 APIPermissionInfo::~APIPermissionInfo() { }
 131
 132 APIPermission* APIPermissionInfo::CreateAPIPermission() const {
 133   return api_permission_constructor_ ?
 134     api_permission_constructor_(this) : new SimpleAPIPermission(this);
 135 }
 136
 137 PermissionMessage APIPermissionInfo::GetMessage_() const {
 138   return PermissionMessage(
 139       message_id_, l10n_util::GetStringUTF16(l10n_message_id_));
 140 }
 141
 142 }  // namespace extensions