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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include <zencore/iohash.h>
#include <zencore/logging.h>
#include <zencore/refcount.h>
#include <zencore/thread.h>
#include <zenhttp/httpserver.h>
#include <atomic>
#include <chrono>
#include <list>
#include <memory>
#include <set>
#include <vector>
struct ZenCacheValue;
namespace zen {
namespace detail {
struct CloudCacheSessionState;
}
class IoBuffer;
class CloudCacheClient;
struct IoHash;
class CbObjectView;
/**
* Cached access token, for use with `Authorization:` header
*/
struct CloudCacheAccessToken
{
static constexpr int64_t ExpireMarginInSeconds = 30;
std::string Value;
std::chrono::steady_clock::time_point ExpireTime;
bool IsValid() const
{
return !Value.empty() &&
ExpireMarginInSeconds <
std::chrono::duration_cast<std::chrono::seconds>(ExpireTime - std::chrono::steady_clock::now()).count();
}
};
struct CloudCacheResult
{
IoBuffer Response;
int64_t Bytes{};
double ElapsedSeconds{};
int32_t ErrorCode{};
std::string Reason;
bool Success = false;
};
struct PutRefResult : CloudCacheResult
{
std::vector<IoHash> Needs;
};
struct FinalizeRefResult : CloudCacheResult
{
std::vector<IoHash> Needs;
};
struct CloudCacheExistsResult : CloudCacheResult
{
std::set<IoHash> Have;
};
/**
* Context for performing Jupiter operations
*
* Maintains an HTTP connection so that subsequent operations don't need to go
* through the whole connection setup process
*
*/
class CloudCacheSession
{
public:
CloudCacheSession(CloudCacheClient* CacheClient);
~CloudCacheSession();
CloudCacheResult Authenticate();
CloudCacheResult GetDerivedData(std::string_view BucketId, std::string_view Key);
CloudCacheResult GetDerivedData(std::string_view BucketId, const IoHash& Key);
CloudCacheResult GetRef(std::string_view BucketId, const IoHash& Key, ZenContentType RefType);
CloudCacheResult GetBlob(const IoHash& Key);
CloudCacheResult GetCompressedBlob(const IoHash& Key);
CloudCacheResult GetObject(const IoHash& Key);
CloudCacheResult PutDerivedData(std::string_view BucketId, std::string_view Key, IoBuffer DerivedData);
CloudCacheResult PutDerivedData(std::string_view BucketId, const IoHash& Key, IoBuffer DerivedData);
PutRefResult PutRef(std::string_view BucketId, const IoHash& Key, IoBuffer Ref, ZenContentType RefType);
CloudCacheResult PutBlob(const IoHash& Key, IoBuffer Blob);
CloudCacheResult PutCompressedBlob(const IoHash& Key, IoBuffer Blob);
CloudCacheResult PutObject(const IoHash& Key, IoBuffer Object);
FinalizeRefResult FinalizeRef(std::string_view BucketId, const IoHash& Key, const IoHash& RefHah);
CloudCacheResult RefExists(std::string_view BucketId, const IoHash& Key);
CloudCacheResult BlobExists(const IoHash& Key);
CloudCacheResult CompressedBlobExists(const IoHash& Key);
CloudCacheResult ObjectExists(const IoHash& Key);
CloudCacheExistsResult BlobExists(const std::set<IoHash>& Keys);
CloudCacheExistsResult CompressedBlobExists(const std::set<IoHash>& Keys);
CloudCacheExistsResult ObjectExists(const std::set<IoHash>& Keys);
CloudCacheResult PostComputeTasks(std::string_view ChannelId, IoBuffer TasksData);
CloudCacheResult GetComputeUpdates(std::string_view ChannelId, const uint32_t WaitSeconds = 0);
CloudCacheResult GetObjectTree(const IoHash& Key);
std::vector<IoHash> Filter(std::string_view BucketId, const std::vector<IoHash>& ChunkHashes);
private:
inline spdlog::logger& Log() { return m_Log; }
const CloudCacheAccessToken& GetAccessToken();
bool VerifyAccessToken(long StatusCode);
CloudCacheResult CacheTypeExists(std::string_view TypeId, const IoHash& Key);
CloudCacheExistsResult CacheTypeExists(std::string_view TypeId, const std::set<IoHash>& Keys);
spdlog::logger& m_Log;
RefPtr<CloudCacheClient> m_CacheClient;
detail::CloudCacheSessionState* m_SessionState;
};
struct CloudCacheClientOptions
{
std::string_view Name;
std::string_view ServiceUrl;
std::string_view DdcNamespace;
std::string_view BlobStoreNamespace;
std::string_view OAuthProvider;
std::string_view OAuthClientId;
std::string_view OAuthSecret;
std::string_view AccessToken;
std::chrono::milliseconds ConnectTimeout{5000};
std::chrono::milliseconds Timeout{};
bool UseLegacyDdc = false;
};
/**
* Jupiter upstream cache client
*/
class CloudCacheClient : public RefCounted
{
public:
CloudCacheClient(const CloudCacheClientOptions& Options);
~CloudCacheClient();
CloudCacheAccessToken AcquireAccessToken();
std::string_view DdcNamespace() const { return m_DdcNamespace; }
std::string_view BlobStoreNamespace() const { return m_BlobStoreNamespace; }
std::string_view ServiceUrl() const { return m_ServiceUrl; }
bool IsValid() const { return m_IsValid; }
spdlog::logger& Logger() { return m_Log; }
private:
spdlog::logger& m_Log;
std::string m_ServiceUrl;
std::string m_OAuthDomain;
std::string m_OAuthUriPath;
std::string m_OAuthFullUri;
std::string m_DdcNamespace;
std::string m_BlobStoreNamespace;
std::string m_OAuthClientId;
std::string m_OAuthSecret;
std::string m_AccessToken;
std::chrono::milliseconds m_ConnectTimeout{};
std::chrono::milliseconds m_Timeout{};
bool m_IsValid = false;
RwLock m_SessionStateLock;
std::list<detail::CloudCacheSessionState*> m_SessionStateCache;
detail::CloudCacheSessionState* AllocSessionState();
void FreeSessionState(detail::CloudCacheSessionState*);
friend class CloudCacheSession;
};
} // namespace zen
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