RetroShare/libretroshare/src/retroshare/rsgxsiface.h

277 lines
11 KiB
C++

/*******************************************************************************
* libretroshare/src/retroshare: rsgxsiface.h *
* *
* libretroshare: retroshare core library *
* *
* Copyright (C) 2012 Christopher Evi-Parker *
* Copyright (C) 2019 Gioacchino Mazzurco <gio@eigenlab.org> *
* *
* This program 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, either version 3 of the *
* License, or (at your option) any later version. *
* *
* This program 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 program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#pragma once
#include "retroshare/rsreputations.h"
#include "retroshare/rsgxsservice.h"
#include "gxs/rsgxsdata.h"
#include "retroshare/rsgxsifacetypes.h"
#include "util/rsdeprecate.h"
#include "serialiser/rsserializable.h"
#include "rsitems/rsserviceids.h"
#include "retroshare/rsevents.h"
/*!
* This structure is used to transport group summary information when a GXS
* service is searched. It contains the group information as well as a context
* string to tell where the information was found. It is more compact than a
* GroupMeta object, so as to make search responses as light as possible.
*/
struct RsGxsGroupSummary : RsSerializable
{
RsGxsGroupSummary() :
mPublishTs(0), mNumberOfMessages(0),mLastMessageTs(0),
mSignFlags(0),mPopularity(0) {}
RsGxsGroupId mGroupId;
std::string mGroupName;
RsGxsId mAuthorId;
rstime_t mPublishTs;
uint32_t mNumberOfMessages;
rstime_t mLastMessageTs;
uint32_t mSignFlags;
uint32_t mPopularity;
std::string mSearchContext;
/// @see RsSerializable::serial_process
void serial_process( RsGenericSerializer::SerializeJob j,
RsGenericSerializer::SerializeContext& ctx )
{
RS_SERIAL_PROCESS(mGroupId);
RS_SERIAL_PROCESS(mGroupName);
RS_SERIAL_PROCESS(mAuthorId);
RS_SERIAL_PROCESS(mPublishTs);
RS_SERIAL_PROCESS(mNumberOfMessages);
RS_SERIAL_PROCESS(mLastMessageTs);
RS_SERIAL_PROCESS(mSignFlags);
RS_SERIAL_PROCESS(mPopularity);
RS_SERIAL_PROCESS(mSearchContext);
}
~RsGxsGroupSummary();
};
/*!
* Stores ids of changed gxs groups and messages.
* It is used to notify about GXS changes.
*/
struct RsGxsChanges : RsEvent
{
RsGxsChanges();
/// Type of the service
RsServiceType mServiceType;
std::map<RsGxsGroupId, std::set<RsGxsMessageId> > mMsgs;
std::map<RsGxsGroupId, std::set<RsGxsMessageId> > mMsgsMeta;
std::list<RsGxsGroupId> mGrps;
std::list<RsGxsGroupId> mGrpsMeta;
std::list<TurtleRequestId> mDistantSearchReqs;
/// @see RsSerializable
void serial_process( RsGenericSerializer::SerializeJob j,
RsGenericSerializer::SerializeContext& ctx) override
{
RsEvent::serial_process(j,ctx);
RS_SERIAL_PROCESS(mServiceType);
RS_SERIAL_PROCESS(mMsgs);
RS_SERIAL_PROCESS(mMsgsMeta);
RS_SERIAL_PROCESS(mGrps);
RS_SERIAL_PROCESS(mGrpsMeta);
RS_SERIAL_PROCESS(mDistantSearchReqs);
}
RsTokenService* mService; /// Weak pointer, not serialized
};
/*!
* All implementations must offer thread safety
*/
struct RsGxsIface
{
/*!
* \brief serviceType
* \return The 16-bits service type. See @serialiser/rsserviceids.h
*/
virtual uint16_t serviceType() const =0;
#ifdef TO_REMOVE
/*!
* Gxs services should call this for automatic handling of
* changes, send
* @param changes
*/
virtual void receiveChanges(std::vector<RsGxsNotify*>& changes) = 0;
#endif
/*!
* @return handle to token service for this GXS service
*/
virtual RsTokenService* getTokenService() = 0;
/* Generic Lists */
/*!
* Retrieve list of group ids associated to a request token
* @param token token to be redeemed for this request
* @param groupIds the ids return for given request token
* @return false if request token is invalid, check token status for error report
*/
virtual bool getGroupList(const uint32_t &token,
std::list<RsGxsGroupId> &groupIds) = 0;
/*!
* Retrieves list of msg ids associated to a request token
* @param token token to be redeemed for this request
* @param msgIds the ids return for given request token
* @return false if request token is invalid, check token status for error report
*/
virtual bool getMsgList(const uint32_t &token,
GxsMsgIdResult& msgIds) = 0;
/*!
* Retrieves list of msg related ids associated to a request token
* @param token token to be redeemed for this request
* @param msgIds the ids return for given request token
* @return false if request token is invalid, check token status for error report
*/
virtual bool getMsgRelatedList(const uint32_t &token,
MsgRelatedIdResult& msgIds) = 0;
/*!
* @param token token to be redeemed for group summary request
* @param groupInfo the ids returned for given request token
* @return false if request token is invalid, check token status for error report
*/
virtual bool getGroupMeta(const uint32_t &token,
std::list<RsGroupMetaData> &groupInfo) = 0;
/*!
* @param token token to be redeemed for message summary request
* @param msgInfo the message metadata returned for given request token
* @return false if request token is invalid, check token status for error report
*/
virtual bool getMsgMeta(const uint32_t &token,
GxsMsgMetaMap &msgInfo) = 0;
/*!
* @param token token to be redeemed for message related summary request
* @param msgInfo the message metadata returned for given request token
* @return false if request token is invalid, check token status for error report
*/
virtual bool getMsgRelatedMeta(const uint32_t &token,
GxsMsgRelatedMetaMap &msgInfo) = 0;
/*!
* subscribes to group, and returns token which can be used
* to be acknowledged to get group Id
* @param token token to redeem for acknowledgement
* @param grpId the id of the group to subscribe to
*/
virtual bool subscribeToGroup(uint32_t& token, const RsGxsGroupId& grpId, bool subscribe) = 0;
/*!
* This allows the client service to acknowledge that their msgs has
* been created/modified and retrieve the create/modified msg ids
* @param token the token related to modification/create request
* @param msgIds map of grpid->msgIds of message created/modified
* @return true if token exists false otherwise
*/
virtual bool acknowledgeTokenMsg(const uint32_t& token, std::pair<RsGxsGroupId, RsGxsMessageId>& msgId) = 0;
/*!
* This allows the client service to acknowledge that their grps has
* been created/modified and retrieve the create/modified grp ids
* @param token the token related to modification/create request
* @param msgIds vector of ids of groups created/modified
* @return true if token exists false otherwise
*/
virtual bool acknowledgeTokenGrp(const uint32_t& token, RsGxsGroupId& grpId) = 0;
/*!
* Gets service statistic for a given services
* @param token value to to retrieve requested stats
* @param stats the status
* @return true if token exists false otherwise
*/
virtual bool getServiceStatistic(const uint32_t& token, GxsServiceStatistic& stats) = 0;
/*!
*
* @param token to be redeemed
* @param stats the stats associated to token request
* @return true if token is false otherwise
*/
virtual bool getGroupStatistic(const uint32_t& token, GxsGroupStatistic& stats) = 0;
/*!
*
* @param token value set to be redeemed with acknowledgement
* @param grpId group id for cutoff value to be set
* @param CutOff The cut off value to set
*/
virtual void setGroupReputationCutOff(uint32_t& token, const RsGxsGroupId& grpId, int CutOff) = 0;
/*!
* @return storage/sync time of messages in secs
*/
virtual uint32_t getDefaultStoragePeriod() = 0;
virtual uint32_t getStoragePeriod(const RsGxsGroupId& grpId) = 0;
virtual void setStoragePeriod(const RsGxsGroupId& grpId,uint32_t age_in_secs) = 0;
virtual uint32_t getDefaultSyncPeriod() = 0;
virtual uint32_t getSyncPeriod(const RsGxsGroupId& grpId) = 0;
virtual void setSyncPeriod(const RsGxsGroupId& grpId,uint32_t age_in_secs) = 0;
virtual RsReputationLevel minReputationForForwardingMessages(
uint32_t group_sign_flags,uint32_t identity_flags ) = 0;
/**
* @brief Export group public data in base64 format
* @jsonapi{development}
* @param[out] radix storage for the generated base64 data
* @param[in] groupId Id of the group of which to output the data
* @param[out] errMsg optional storage for error message, meaningful only in
* case of failure
* @return false if something failed, true otherwhise
*/
virtual bool exportGroupBase64(
std::string& radix, const RsGxsGroupId& groupId,
std::string& errMsg = RS_DEFAULT_STORAGE_PARAM(std::string) ) = 0;
/**
* @brief Import group public data from base64 string
* @param[in] radix group invite in radix format
* @param[out] groupId optional storage for imported group id
* @param[out] errMsg optional storage for error message, meaningful only in
* case of failure
* @return false if some error occurred, true otherwise
*/
virtual bool importGroupBase64(
const std::string& radix,
RsGxsGroupId& groupId = RS_DEFAULT_STORAGE_PARAM(RsGxsGroupId),
std::string& errMsg = RS_DEFAULT_STORAGE_PARAM(std::string) ) = 0;
virtual ~RsGxsIface();
};