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// 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.
#ifndef EXTENSIONS_COMMON_PERMISSIONS_MANIFEST_PERMISSION_H_
#define EXTENSIONS_COMMON_PERMISSIONS_MANIFEST_PERMISSION_H_
#include <string>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/pickle.h"
#include "extensions/common/permissions/api_permission_set.h"
namespace base {
class PickleIterator;
class Value;
}
namespace IPC {
class Message;
}
namespace extensions {
// Represent the custom behavior of a top-level manifest entry contributing to
// permission messages and storage.
class ManifestPermission {
public:
ManifestPermission();
virtual ~ManifestPermission();
// The manifest key this permission applies to.
virtual std::string name() const = 0;
// Same as name(), needed for compatibility with APIPermission.
virtual std::string id() const = 0;
// The set of permissions this manifest entry has. These permissions are used
// by PermissionMessageProvider to generate meaningful permission messages
// for the app.
virtual PermissionIDSet GetPermissions() const = 0;
// Parses the ManifestPermission from |value|. Returns false if error happens.
virtual bool FromValue(const base::Value* value) = 0;
// Stores this into a new created Value.
virtual scoped_ptr<base::Value> ToValue() const = 0;
// Clones this.
ManifestPermission* Clone() const;
// Returns a new manifest permission which equals this - |rhs|.
virtual ManifestPermission* Diff(const ManifestPermission* rhs) const = 0;
// Returns a new manifest permission which equals the union of this and |rhs|.
virtual ManifestPermission* Union(const ManifestPermission* rhs) const = 0;
// Returns a new manifest permission which equals the intersect of this and
// |rhs|.
virtual ManifestPermission* Intersect(const ManifestPermission* rhs)
const = 0;
// Returns true if |rhs| is a subset of this.
bool Contains(const ManifestPermission* rhs) const;
// Returns true if |rhs| is equal to this.
bool Equal(const ManifestPermission* rhs) const;
// IPC functions
// Writes this into the given IPC message |m|.
void Write(base::Pickle* m) const;
// Reads from the given IPC message |m|.
bool Read(const base::Pickle* m, base::PickleIterator* iter);
// Logs this permission.
void Log(std::string* log) const;
private:
DISALLOW_COPY_AND_ASSIGN(ManifestPermission);
};
} // namespace extensions
#endif // EXTENSIONS_COMMON_PERMISSIONS_MANIFEST_PERMISSION_H_
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