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// Copyright (c) 2012 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_BROWSER_POLICY_USER_POLICY_CACHE_H_
#define CHROME_BROWSER_POLICY_USER_POLICY_CACHE_H_
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/values.h"
#include "chrome/browser/policy/cloud_policy_cache_base.h"
#include "chrome/browser/policy/user_policy_disk_cache.h"
class FilePath;
namespace enterprise_management {
class CachedCloudPolicyResponse;
// <Old-style policy support> (see comment below)
class GenericValue;
// </Old-style policy support>
} // namespace enterprise_management
namespace policy {
class PolicyMap;
// CloudPolicyCacheBase implementation that persists policy information
// into the file specified by the c'tor parameter |backing_file_path|.
class UserPolicyCache : public CloudPolicyCacheBase,
public UserPolicyDiskCache::Delegate {
public:
// |backing_file_path| is the path to the cache file.
// |wait_for_policy_fetch| is true if the cache should be ready only after
// an attempt was made to fetch user policy.
UserPolicyCache(const FilePath& backing_file_path,
bool wait_for_policy_fetch);
virtual ~UserPolicyCache();
// CloudPolicyCacheBase implementation:
virtual void Load() OVERRIDE;
virtual bool SetPolicy(
const enterprise_management::PolicyFetchResponse& policy) OVERRIDE;
virtual void SetUnmanaged() OVERRIDE;
virtual void SetFetchingDone() OVERRIDE;
private:
class DiskCache;
// UserPolicyDiskCache::Delegate implementation:
virtual void OnDiskCacheLoaded(
UserPolicyDiskCache::LoadResult result,
const enterprise_management::CachedCloudPolicyResponse&
cached_response) OVERRIDE;
// CloudPolicyCacheBase implementation:
virtual bool DecodePolicyData(
const enterprise_management::PolicyData& policy_data,
PolicyMap* policies) OVERRIDE;
// Checks if this cache is ready, and invokes SetReady() if so.
void CheckIfReady();
// <Old-style policy support>
// The following member functions are needed to support old-style policy and
// can be removed once all server-side components (CPanel, D3) have been
// migrated to providing the new policy format.
//
// If |policies| is empty and |policy_data| contains a field named
// "repeated GenericNamedValue named_value = 2;", the policies in that field
// are added to |policies| as LEVEL_MANDATORY, SCOPE_USER policies.
void MaybeDecodeOldstylePolicy(const std::string& policy_data,
PolicyMap* policies);
Value* DecodeIntegerValue(google::protobuf::int64 value) const;
Value* DecodeValue(const enterprise_management::GenericValue& value) const;
// </Old-style policy support>
// Manages the cache file.
scoped_refptr<UserPolicyDiskCache> disk_cache_;
// Used for constructing the weak ptr passed to |disk_cache_|.
base::WeakPtrFactory<UserPolicyDiskCache::Delegate> weak_ptr_factory_;
// True if the disk cache has been loaded.
bool disk_cache_ready_;
// True if at least one attempt was made to refresh the cache with a freshly
// fetched policy, or if there is no need to wait for that.
bool fetch_ready_;
DISALLOW_COPY_AND_ASSIGN(UserPolicyCache);
};
} // namespace policy
#endif // CHROME_BROWSER_POLICY_USER_POLICY_CACHE_H_
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