RetroShare/libretroshare/src/services/p3chatservice.h
csoler e9d6940b09 Improvements to chat lobbies:
- added generic methods and items for bouncing generic objects through lobbies
	- added handling of peer typing status
	- proper handling of peer join/leave lobby
	- added sub item ids to lobby messages to allow proper message splitting
	- made 2 different message splitting methods for normal chat vs. lobbies. In v0.6, we'll have to handle all messages the same way.
	- added parent id to RsChatLobbyMsgItem, to allow threaded chat.
	- added possibility to make a lobby public/private (not yet fully working)
	- added items for requesting/exchanging list of public lobbies at friends' (not yet fully working)
	- major cleaning of p3chatservice.cc

Next move:
	- gui for listing friend public lobbies, joining them, etc.
	- load/save of persistent lobbies.
	- autoremove of inactive lobbies

Warning: lobby message items of this version are incompatible with previous versions. It won't crash, but
messages will not pass through.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@4755 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2012-01-06 22:17:08 +00:00

300 lines
11 KiB
C++

/*
* libretroshare/src/services chatservice.h
*
* Services for RetroShare.
*
* Copyright 2004-2008 by Robert Fernie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
*/
#ifndef SERVICE_CHAT_HEADER
#define SERVICE_CHAT_HEADER
#include <list>
#include <string>
#include <vector>
#include "serialiser/rsmsgitems.h"
#include "services/p3service.h"
#include "retroshare/rsmsgs.h"
class p3LinkMgr;
class p3HistoryMgr;
//!The basic Chat service.
/**
*
* Can be used to send and receive chats, immediate status (using notify), avatars, and custom status
* This service uses rsnotify (callbacks librs clients (e.g. rs-gui))
* @see NotifyBase
*/
class p3ChatService: public p3Service, public p3Config, public pqiMonitor
{
public:
p3ChatService(p3LinkMgr *cm, p3HistoryMgr *historyMgr);
/***** overloaded from p3Service *****/
/*!
* This retrieves all chat msg items and also (important!)
* processes chat-status items that are in service item queue. chat msg item requests are also processed and not returned
* (important! also) notifications sent to notify base on receipt avatar, immediate status and custom status
* : notifyCustomState, notifyChatStatus, notifyPeerHasNewAvatar
* @see NotifyBase
*/
virtual int tick();
virtual int status();
/*************** pqiMonitor callback ***********************/
virtual void statusChange(const std::list<pqipeer> &plist);
/*!
* public chat sent to all peers
*/
int sendPublicChat(const std::wstring &msg);
/********* RsMsgs ***********/
/*!
* chat is sent to specifc peer
* @param id peer to send chat msg to
*/
bool sendPrivateChat(const std::string &id, const std::wstring &msg);
/*!
* can be used to send 'immediate' status msgs, these status updates are meant for immediate use by peer (not saved by rs)
* e.g currently used to update user when a peer 'is typing' during a chat
*/
void sendStatusString(const std::string& peer_id,const std::string& status_str) ;
/*!
* send to all peers online
*@see sendStatusString()
*/
void sendGroupChatStatusString(const std::string& status_str) ;
/*!
* this retrieves custom status for a peers, generate a requests to the peer
* @param peer_id the id of the peer you want status string for
*/
std::string getCustomStateString(const std::string& peer_id) ;
/*!
* sets the client's custom status, generates 'status available' item sent to all online peers
*/
void setOwnCustomStateString(const std::string&) ;
/*!
* @return client's custom string
*/
std::string getOwnCustomStateString() ;
/*! gets the peer's avatar in jpeg format, if available. Null otherwise. Also asks the peer to send
* its avatar, if not already available. Creates a new unsigned char array. It's the caller's
* responsibility to delete this ones used.
*/
void getAvatarJpegData(const std::string& peer_id,unsigned char *& data,int& size) ;
/*!
* Sets the avatar data and size for client's account
* @param data is copied, so should be destroyed by the caller
*/
void setOwnAvatarJpegData(const unsigned char *data,int size) ;
/*!
* Gets the avatar data for clients account
* data is in jpeg format
*/
void getOwnAvatarJpegData(unsigned char *& data,int& size) ;
/*!
* returns the count of messages in public queue
* @param public or private queue
*/
int getPublicChatQueueCount();
/*!
* This retrieves all public chat msg items
*/
bool getPublicChatQueue(std::list<ChatInfo> &chats);
/*!
* returns the count of messages in private queue
* @param public or private queue
*/
int getPrivateChatQueueCount(bool incoming);
/*!
* @param id's of available private chat messages
*/
bool getPrivateChatQueueIds(bool incoming, std::list<std::string> &ids);
/*!
* This retrieves all private chat msg items for peer
*/
bool getPrivateChatQueue(bool incoming, const std::string &id, std::list<ChatInfo> &chats);
/*!
* @param clear private chat queue
*/
bool clearPrivateChatQueue(bool incoming, const std::string &id);
bool getVirtualPeerId(const ChatLobbyId&, std::string& virtual_peer_id) ;
bool isLobbyId(const std::string&, ChatLobbyId&) ;
void getChatLobbyList(std::list<ChatLobbyInfo, std::allocator<ChatLobbyInfo> >&) ;
bool acceptLobbyInvite(const ChatLobbyId& id) ;
void denyLobbyInvite(const ChatLobbyId& id) ;
void getPendingChatLobbyInvites(std::list<ChatLobbyInvite>& invites) ;
void invitePeerToLobby(const ChatLobbyId&, const std::string&) ;
void unsubscribeChatLobby(const ChatLobbyId& lobby_id) ;
bool setNickNameForChatLobby(const ChatLobbyId& lobby_id,const std::string& nick) ;
bool getNickNameForChatLobby(const ChatLobbyId& lobby_id,std::string& nick) ;
bool setDefaultNickNameForChatLobby(const std::string& nick) ;
bool getDefaultNickNameForChatLobby(std::string& nick) ;
void sendLobbyStatusString(const ChatLobbyId& id,const std::string& status_string) ;
ChatLobbyId createChatLobby(const std::string& lobby_name,const std::list<std::string>& invited_friends,uint32_t privacy_type) ;
void getListOfNearbyChatLobbies(std::vector<PublicChatLobbyRecord>& public_lobbies) ;
protected:
/************* from p3Config *******************/
virtual RsSerialiser *setupSerialiser() ;
/*!
* chat msg items and custom status are saved
*/
virtual bool saveList(bool& cleanup, std::list<RsItem*>&) ;
virtual void saveDone();
virtual bool loadList(std::list<RsItem*>& load) ;
private:
RsMutex mChatMtx;
class AvatarInfo ;
class StateStringInfo ;
// Receive chat queue
void receiveChatQueue();
void initRsChatInfo(RsChatMsgItem *c, ChatInfo &i);
/// Send avatar info to peer in jpeg format.
void sendAvatarJpegData(const std::string& peer_id) ;
/// Send custom state info to peer
void sendCustomState(const std::string& peer_id);
/// Receive the avatar in a chat item, with RS_CHAT_RECEIVE_AVATAR flag.
void receiveAvatarJpegData(RsChatAvatarItem *ci) ; // new method
void receiveStateString(const std::string& id,const std::string& s) ;
/// methods for handling various Chat items.
bool handleRecvChatMsgItem(RsChatMsgItem *item) ; // returns false if the item should be deleted.
void handleRecvChatStatusItem(RsChatStatusItem *item) ;
void handleRecvChatAvatarItem(RsChatAvatarItem *item) ;
void handleRecvChatLobbyListRequest(RsChatLobbyListRequestItem *item) ;
void handleRecvChatLobbyList(RsChatLobbyListItem *item) ;
void handleRecvChatLobbyEventItem(RsChatLobbyEventItem *item) ;
/// Sends a request for an avatar to the peer of given id
void sendAvatarRequest(const std::string& peer_id) ;
/// Send a request for custom status string
void sendCustomStateRequest(const std::string& peer_id);
/// called as a proxy to sendItem(). Possibly splits item into multiple items of size lower than the maximum item size.
void checkSizeAndSendMessage(RsChatLobbyMsgItem *item) ;
void checkSizeAndSendMessage_deprecated(RsChatMsgItem *item) ; // keep for compatibility for a few weeks.
/// Called when a RsChatMsgItem is received. The item may be collapsed with any waiting partial chat item from the same peer.
bool locked_checkAndRebuildPartialMessage(RsChatLobbyMsgItem*) ;
bool locked_checkAndRebuildPartialMessage_deprecated(RsChatMsgItem*) ;
/// receive and handle chat lobby item
bool recvLobbyChat(RsChatLobbyMsgItem*,const std::string& src_peer_id) ;
bool sendLobbyChat(const std::wstring&, const ChatLobbyId&) ;
void handleRecvLobbyInvite(RsChatLobbyInviteItem*) ;
void checkAndRedirectMsgToLobby(RsChatMsgItem*) ;
void handleConnectionChallenge(RsChatLobbyConnectChallengeItem *item) ;
void sendConnectionChallenge(ChatLobbyId id) ;
void handleFriendUnsubscribeLobby(RsChatLobbyUnsubscribeItem*) ;
void cleanLobbyCaches() ;
bool bounceLobbyObject(RsChatLobbyBouncingObject *obj, const std::string& peer_id) ;
void sendLobbyStatusItem(const ChatLobbyId&, int type, const std::string& status_string) ;
void sendLobbyStatusPeerLiving(const ChatLobbyId& lobby_id) ;
void sendLobbyStatusNewPeer(const ChatLobbyId& lobby_id) ;
void locked_initLobbyBouncableObject(const ChatLobbyId& id,RsChatLobbyBouncingObject&) ;
static std::string makeVirtualPeerId(ChatLobbyId) ;
static uint64_t makeConnexionChallengeCode(ChatLobbyId lobby_id,ChatLobbyMsgId msg_id) ;
void locked_printDebugInfo() const ;
RsChatAvatarItem *makeOwnAvatarItem() ;
RsChatStatusItem *makeOwnCustomStateStringItem() ;
p3LinkMgr *mLinkMgr;
p3HistoryMgr *mHistoryMgr;
std::list<RsChatMsgItem *> publicList;
std::list<RsChatMsgItem *> privateIncomingList;
std::list<RsChatMsgItem *> privateOutgoingList;
AvatarInfo *_own_avatar ;
std::map<std::string,AvatarInfo *> _avatars ;
std::map<std::string,RsChatMsgItem *> _pendingPartialMessages ;
std::map<ChatLobbyMsgId,std::vector<RsChatLobbyMsgItem*> > _pendingPartialLobbyMessages ; // should be used for all chat msgs after version updgrade
std::string _custom_status_string ;
std::map<std::string,StateStringInfo> _state_strings ;
class ChatLobbyEntry: public ChatLobbyInfo
{
public:
std::map<ChatLobbyMsgId,time_t> msg_cache ;
std::string virtual_peer_id ;
int connexion_challenge_count ;
time_t last_connexion_challenge_time ;
};
std::map<ChatLobbyId,ChatLobbyEntry> _chat_lobbys ;
std::map<ChatLobbyId,ChatLobbyInvite> _lobby_invites_queue ;
std::map<ChatLobbyId,PublicChatLobbyRecord> _public_lobbies ;
std::map<std::string,ChatLobbyId> _lobby_ids ;
std::string _default_nick_name ;
time_t last_lobby_challenge_time ; // prevents bruteforce attack
};
class p3ChatService::StateStringInfo
{
public:
StateStringInfo()
{
_custom_status_string = "" ; // the custom status string of the peer
_peer_is_new = false ; // true when the peer has a new avatar
_own_is_new = false ; // true when I myself a new avatar to send to this peer.
}
std::string _custom_status_string ;
int _peer_is_new ; // true when the peer has a new avatar
int _own_is_new ; // true when I myself a new avatar to send to this peer.
};
#endif // SERVICE_CHAT_HEADER