root/extensions/common/permissions/api_permission.cc

DEFINITIONS

1. HasMessages
2. GetMessages
3. Check
4. Contains
5. Equal
6. FromValue
7. ToValue
8. Clone
9. Diff
10. Union
11. Intersect
12. Write
13. Read
14. Log
15. id
16. name
17. GetMessage_
18. api_permission_constructor_
19. CreateAPIPermission
20. GetMessage_

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "extensions/common/permissions/api_permission.h"

#include "ui/base/l10n/l10n_util.h"

namespace {

using extensions::APIPermission;
using extensions::APIPermissionInfo;
using extensions::PermissionMessage;
using extensions::PermissionMessages;

class SimpleAPIPermission : public APIPermission {
 public:
  explicit SimpleAPIPermission(const APIPermissionInfo* permission)
    : APIPermission(permission) { }

  virtual ~SimpleAPIPermission() { }

  virtual bool HasMessages() const OVERRIDE {
    return info()->message_id() > PermissionMessage::kNone;
  }

  virtual PermissionMessages GetMessages() const OVERRIDE {
    DCHECK(HasMessages());
    PermissionMessages result;
    result.push_back(GetMessage_());
    return result;
  }

  virtual bool Check(
      const APIPermission::CheckParam* param) const OVERRIDE {
    return !param;
  }

  virtual bool Contains(const APIPermission* rhs) const OVERRIDE {
    CHECK_EQ(info(), rhs->info());
    return true;
  }

  virtual bool Equal(const APIPermission* rhs) const OVERRIDE {
    if (this != rhs)
      CHECK_EQ(info(), rhs->info());
    return true;
  }

  virtual bool FromValue(
      const base::Value* value,
      std::string* /*error*/,
      std::vector<std::string>* /*unhandled_permissions*/) OVERRIDE {
    return (value == NULL);
  }

  virtual scoped_ptr<base::Value> ToValue() const OVERRIDE {
    return scoped_ptr<base::Value>();
  }

  virtual APIPermission* Clone() const OVERRIDE {
    return new SimpleAPIPermission(info());
  }

  virtual APIPermission* Diff(const APIPermission* rhs) const OVERRIDE {
    CHECK_EQ(info(), rhs->info());
    return NULL;
  }

  virtual APIPermission* Union(const APIPermission* rhs) const OVERRIDE {
    CHECK_EQ(info(), rhs->info());
    return new SimpleAPIPermission(info());
  }

  virtual APIPermission* Intersect(const APIPermission* rhs) const OVERRIDE {
    CHECK_EQ(info(), rhs->info());
    return new SimpleAPIPermission(info());
  }

  virtual void Write(IPC::Message* m) const OVERRIDE { }

  virtual bool Read(const IPC::Message* m, PickleIterator* iter) OVERRIDE {
    return true;
  }

  virtual void Log(std::string* log) const OVERRIDE { }
};

}  // namespace

namespace extensions {

APIPermission::APIPermission(const APIPermissionInfo* info)
  : info_(info) {
  DCHECK(info_);
}

APIPermission::~APIPermission() { }

APIPermission::ID APIPermission::id() const {
  return info()->id();
}

const char* APIPermission::name() const {
  return info()->name();
}

PermissionMessage APIPermission::GetMessage_() const {
  return info()->GetMessage_();
}

//
// APIPermissionInfo
//

APIPermissionInfo::APIPermissionInfo(
    APIPermission::ID id,
    const char* name,
    int l10n_message_id,
    PermissionMessage::ID message_id,
    int flags,
    APIPermissionConstructor api_permission_constructor)
    : id_(id),
      name_(name),
      flags_(flags),
      l10n_message_id_(l10n_message_id),
      message_id_(message_id),
      api_permission_constructor_(api_permission_constructor) { }


APIPermissionInfo::~APIPermissionInfo() { }

APIPermission* APIPermissionInfo::CreateAPIPermission() const {
  return api_permission_constructor_ ?
    api_permission_constructor_(this) : new SimpleAPIPermission(this);
}

PermissionMessage APIPermissionInfo::GetMessage_() const {
  return PermissionMessage(
      message_id_, l10n_util::GetStringUTF16(l10n_message_id_));
}

}  // namespace extensions