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// Copyright (c) 2011 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 CHROME_COMMON_EXTENSIONS_MANIFEST_H_
#define CHROME_COMMON_EXTENSIONS_MANIFEST_H_
#pragma once
#include <map>
#include <string>
#include <set>
#include "base/memory/scoped_ptr.h"
#include "base/string16.h"
namespace base {
class DictionaryValue;
class ListValue;
class Value;
}
namespace extensions {
// Lightweight wrapper around a DictionaryValue representing an extension's
// manifest. Currently enforces access to properties of the manifest based
// on manifest type.
//
// TODO(aa): Move more smarts about mmanifest into this class over time.
class Manifest {
public:
// Flags for matching types of extension manifests.
enum Type {
kTypeNone = 0,
// Extension::TYPE_EXTENSION and Extension::TYPE_USER_SCRIPT
kTypeExtension = 1 << 0,
// Extension::TYPE_THEME
kTypeTheme = 1 << 1,
// Extension::TYPE_HOSTED_APP
kTypeHostedApp = 1 << 2,
// Extension::TYPE_PACKAGED_APP
kTypePackagedApp = 1 << 3,
// Extension::TYPE_PLATFORM_APP
kTypePlatformApp = 1 << 4,
// All types
kTypeAll = (1 << 5) - 1,
};
// Returns all known keys (this is used for testing).
static std::set<std::string> GetAllKnownKeys();
// Takes over ownership of |value|.
explicit Manifest(base::DictionaryValue* value);
virtual ~Manifest();
// Returns true if all keys in the manifest can be specified by
// the extension type.
bool ValidateManifest(string16* error) const;
// Returns the manifest type.
Type GetType() const;
// Returns true if the manifest represents an Extension::TYPE_THEME.
bool IsTheme() const;
// Returns true for Extension::TYPE_PLATFORM_APP
bool IsPlatformApp() const;
// Returns true for Extension::TYPE_PACKAGED_APP.
bool IsPackagedApp() const;
// Returns true for Extension::TYPE_HOSTED_APP.
bool IsHostedApp() const;
// These access the wrapped manifest value, returning false when the property
// does not exist or if the manifest type can't access it.
bool HasKey(const std::string& key) const;
bool Get(const std::string& path, base::Value** out_value) const;
bool GetBoolean(const std::string& path, bool* out_value) const;
bool GetInteger(const std::string& path, int* out_value) const;
bool GetString(const std::string& path, std::string* out_value) const;
bool GetString(const std::string& path, string16* out_value) const;
bool GetDictionary(const std::string& path,
base::DictionaryValue** out_value) const;
bool GetList(const std::string& path, base::ListValue** out_value) const;
// Returns a new Manifest equal to this one, passing ownership to
// the caller.
Manifest* DeepCopy() const;
// Returns true if this equals the |other| manifest.
bool Equals(const Manifest* other) const;
// Gets the underlying DictionaryValue representing the manifest.
// Note: only know this when you KNOW you don't need the validation.
base::DictionaryValue* value() const { return value_.get(); }
private:
// Returns true if the extension can specify the given |path|.
bool CanAccessPath(const std::string& path) const;
scoped_ptr<base::DictionaryValue> value_;
};
} // namespace extensions
#endif // CHROME_COMMON_EXTENSIONS_MANIFEST_H_
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