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/**
* @file llhttpassetstorage.h
* @brief Class for loading asset data to/from an external source over http.
*
* $LicenseInfo:firstyear=2003&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LLHTTPASSETSTORAGE_H
#define LLHTTPASSETSTORAGE_H
#include "llassetstorage.h"
#include "curl/curl.h"
class LLVFile;
class LLHTTPAssetRequest;
typedef void (*progress_callback)(void* userdata);
struct LLTempAssetData;
typedef std::map<LLUUID,LLTempAssetData> uuid_tempdata_map;
class LLHTTPAssetStorage : public LLAssetStorage
{
public:
LLHTTPAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
LLVFS *vfs, LLVFS *static_vfs,
const LLHost &upstream_host,
const std::string& web_host,
const std::string& local_web_host,
const std::string& host_name);
LLHTTPAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
LLVFS *vfs, LLVFS *static_vfs,
const std::string& web_host,
const std::string& local_web_host,
const std::string& host_name);
virtual ~LLHTTPAssetStorage();
using LLAssetStorage::storeAssetData; // Unhiding virtuals...
virtual void storeAssetData(
const LLUUID& uuid,
LLAssetType::EType atype,
LLStoreAssetCallback callback,
void* user_data,
bool temp_file = false,
bool is_priority = false,
bool store_local = false,
const LLUUID& requesting_agent_id = LLUUID::null,
bool user_waiting=FALSE,
F64 timeout=LL_ASSET_STORAGE_TIMEOUT);
virtual void storeAssetData(
const std::string& filename,
const LLUUID& asset_id,
LLAssetType::EType atype,
LLStoreAssetCallback callback,
void* user_data,
bool temp_file,
bool is_priority,
bool user_waiting=FALSE,
F64 timeout=LL_ASSET_STORAGE_TIMEOUT);
virtual LLSD getPendingDetails(ERequestType rt,
LLAssetType::EType asset_type,
const std::string& detail_prefix) const;
virtual LLSD getPendingRequest(ERequestType rt,
LLAssetType::EType asset_type,
const LLUUID& asset_id) const;
virtual bool deletePendingRequest(ERequestType rt,
LLAssetType::EType asset_type,
const LLUUID& asset_id);
// Hack. One off curl download an URL to a file. Probably should be elsewhere.
// Only used by lldynamicstate. The API is broken, and should be replaced with
// a generic HTTP file fetch - Doug 9/25/06
S32 getURLToFile(const LLUUID& uuid, LLAssetType::EType asset_type, const std::string &url, const std::string& filename, progress_callback callback, void *userdata);
LLAssetRequest* findNextRequest(request_list_t& pending, request_list_t& running);
void checkForTimeouts();
static size_t curlDownCallback(void *data, size_t size, size_t nmemb, void *user_data);
static size_t curlFileDownCallback(void *data, size_t size, size_t nmemb, void *user_data);
static size_t curlUpCallback(void *data, size_t size, size_t nmemb, void *user_data);
static size_t nullOutputCallback(void *data, size_t size, size_t nmemb, void *user_data);
// Should only be used by the LLHTTPAssetRequest
void addRunningRequest(ERequestType rt, LLHTTPAssetRequest* request);
void removeRunningRequest(ERequestType rt, LLHTTPAssetRequest* request);
request_list_t* getRunningList(ERequestType rt);
const request_list_t* getRunningList(ERequestType rt) const;
// Temp assets are stored on sim nodes, they have agent ID and location data associated with them.
virtual void addTempAssetData(const LLUUID& asset_id, const LLUUID& agent_id, const std::string& host_name);
virtual BOOL hasTempAssetData(const LLUUID& texture_id) const;
virtual std::string getTempAssetHostName(const LLUUID& texture_id) const;
virtual LLUUID getTempAssetAgentID(const LLUUID& texture_id) const;
virtual void removeTempAssetData(const LLUUID& asset_id);
virtual void removeTempAssetDataByAgentID(const LLUUID& agent_id);
// Pass LLUUID::null for all
virtual void dumpTempAssetData(const LLUUID& avatar_id) const;
virtual void clearTempAssetData();
protected:
void _queueDataRequest(const LLUUID& uuid, LLAssetType::EType type,
void (*callback)(LLVFS *vfs, const LLUUID&, LLAssetType::EType, void *, S32, LLExtStat),
void *user_data, BOOL duplicate, BOOL is_priority);
private:
void _init(const std::string& web_host, const std::string& local_web_host, const std::string& host_name);
// This will return the correct base URI for any http asset request
std::string getBaseURL(const LLUUID& asset_id, LLAssetType::EType asset_type);
// Check for running uploads that have timed out
// Bump these to the back of the line to let other uploads complete.
void bumpTimedOutUploads();
protected:
std::string mBaseURL;
std::string mLocalBaseURL;
std::string mHostName;
CURLM *mCurlMultiHandle;
request_list_t mRunningDownloads;
request_list_t mRunningUploads;
request_list_t mRunningLocalUploads;
uuid_tempdata_map mTempAssets;
};
#endif
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