X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fusers.h;h=229edcfa2564aea295979c9f8c966d3fbbc24bc7;hb=8c2d96013084de950e3a63be4ae6ed626c4093ab;hp=7420cc42f2aacff04bfd91e9af19fb5b3566a16d;hpb=bab14f0dd2345c9d7dcbc47c918563709e1ac094;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/users.h b/include/users.h index 7420cc42f..229edcfa2 100644 --- a/include/users.h +++ b/include/users.h @@ -1 +1,1181 @@ -/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #ifndef __USERS_H__ #define __USERS_H__ #include #include "inspircd_config.h" #include "socket.h" #include "channels.h" #include "inspstring.h" #include "connection.h" #include "hashcomp.h" #include "dns.h" /** Channel status for a user */ enum ChanStatus { /** Op */ STATUS_OP = 4, /** Halfop */ STATUS_HOP = 2, /** Voice */ STATUS_VOICE = 1, /** None */ STATUS_NORMAL = 0 }; /** connect class types */ enum ClassTypes { /** connect:allow */ CC_ALLOW = 0, /** connect:deny */ CC_DENY = 1 }; /** RFC1459 channel modes */ enum UserModes { /** +s: Server notices */ UM_SERVERNOTICE = 's' - 65, /** +w: WALLOPS */ UM_WALLOPS = 'w' - 65, /** +i: Invisible */ UM_INVISIBLE = 'i' - 65, /** +o: Operator */ UM_OPERATOR = 'o' - 65, /** +n: Server notice mask */ UM_SNOMASK = 'n' - 65 }; /** Registration state of a user, e.g. * have they sent USER, NICK, PASS yet? */ enum RegistrationState { #ifndef WIN32 // Burlex: This is already defined in win32, luckily it is still 0. REG_NONE = 0, /* Has sent nothing */ #endif REG_USER = 1, /* Has sent USER */ REG_NICK = 2, /* Has sent NICK */ REG_NICKUSER = 3, /* Bitwise combination of REG_NICK and REG_USER */ REG_ALL = 7 /* REG_NICKUSER plus next bit along */ }; /* Required forward declaration */ class InspIRCd; /** Derived from Resolver, and performs user forward/reverse lookups. */ class CoreExport UserResolver : public Resolver { private: /** User this class is 'attached' to. */ userrec* bound_user; /** File descriptor teh lookup is bound to */ int bound_fd; /** True if the lookup is forward, false if is a reverse lookup */ bool fwd; public: /** Create a resolver. * @param Instance The creating instance * @param user The user to begin lookup on * @param to_resolve The IP or host to resolve * @param qt The query type * @param cache Modified by the constructor if the result was cached */ UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt, bool &cache); /** Called on successful lookup * @param result Result string * @param ttl Time to live for result * @param cached True if the result was found in the cache */ void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached); /** Called on failed lookup * @param e Error code * @param errormessage Error message string */ void OnError(ResolverError e, const std::string &errormessage); }; /** Holds information relevent to <connect allow> and <connect deny> tags in the config file. */ class CoreExport ConnectClass : public classbase { private: /** Type of line, either CC_ALLOW or CC_DENY */ char type; /** Max time to register the connection in seconds */ unsigned int registration_timeout; /** Number of lines in buffer before excess flood is triggered */ unsigned int flood; /** Host mask for this line */ std::string host; /** Number of seconds between pings for this line */ unsigned int pingtime; /** (Optional) Password for this line */ std::string pass; /** Threshold value for flood disconnect */ unsigned int threshold; /** Maximum size of sendq for users in this class (bytes) */ unsigned long sendqmax; /** Maximum size of recvq for users in this class (bytes) */ unsigned long recvqmax; /** Local max when connecting by this connection class */ unsigned long maxlocal; /** Global max when connecting by this connection class */ unsigned long maxglobal; /** Port number this connect class applies to */ int port; public: /** Create a new connect class with no settings. */ ConnectClass() : type(CC_DENY), registration_timeout(0), flood(0), host(""), pingtime(0), pass(""), threshold(0), sendqmax(0), recvqmax(0), maxlocal(0), maxglobal(0) { } /** Create a new connect class to ALLOW connections. * @param timeout The registration timeout * @param fld The flood value * @param hst The IP mask to allow * @param ping The ping frequency * @param pas The password to be used * @param thres The flooding threshold * @param sendq The maximum sendq value * @param recvq The maximum recvq value * @param maxl The maximum local sessions * @param maxg The maximum global sessions */ ConnectClass(unsigned int timeout, unsigned int fld, const std::string &hst, unsigned int ping, const std::string &pas, unsigned int thres, unsigned long sendq, unsigned long recvq, unsigned long maxl, unsigned long maxg, int p = 0) : type(CC_ALLOW), registration_timeout(timeout), flood(fld), host(hst), pingtime(ping), pass(pas), threshold(thres), sendqmax(sendq), recvqmax(recvq), maxlocal(maxl), maxglobal(maxg), port(p) { } /** Create a new connect class to DENY connections * @param hst The IP mask to deny */ ConnectClass(const std::string &hst) : type(CC_DENY), registration_timeout(0), flood(0), host(hst), pingtime(0), pass(""), threshold(0), sendqmax(0), recvqmax(0), maxlocal(0), maxglobal(0), port(0) { } /** Returns the type, CC_ALLOW or CC_DENY */ char GetType() { return (type == CC_ALLOW ? CC_ALLOW : CC_DENY); } /** Returns the registration timeout */ unsigned int GetRegTimeout() { return (registration_timeout ? registration_timeout : 90); } /** Returns the flood limit */ unsigned int GetFlood() { return (threshold ? flood : 999); } /** Returns the allowed or denied IP mask */ const std::string& GetHost() { return host; } int GetPort() { return port; } /** Returns the ping frequency */ unsigned int GetPingTime() { return (pingtime ? pingtime : 120); } /** Returns the password or an empty string */ const std::string& GetPass() { return pass; } /** Returns the flood threshold value */ unsigned int GetThreshold() { return (threshold ? threshold : 1); } /** Returns the maximum sendq value */ unsigned long GetSendqMax() { return (sendqmax ? sendqmax : 262114); } /** Returns the maximum recvq value */ unsigned long GetRecvqMax() { return (recvqmax ? recvqmax : 4096); } /** Returusn the maximum number of local sessions */ unsigned long GetMaxLocal() { return maxlocal; } /** Returns the maximum number of global sessions */ unsigned long GetMaxGlobal() { return maxglobal; } }; /** Holds a complete list of all channels to which a user has been invited and has not yet joined. */ typedef std::vector InvitedList; /** Holds a complete list of all allow and deny tags from the configuration file (connection classes) */ typedef std::vector ClassVector; /** Typedef for the list of user-channel records for a user */ typedef std::map UserChanList; /** Shorthand for an iterator into a UserChanList */ typedef UserChanList::iterator UCListIter; /* Required forward declaration */ class userrec; /** Visibility data for a user. * If a user has a non-null instance of this class in their userrec, * then it is used to determine if this user is visible to other users * or not. */ class CoreExport VisData { public: /** Create a visdata */ VisData(); /** Destroy a visdata */ virtual ~VisData(); /** Is this user visible to some other user? * @param user The other user to compare to * @return true True if the user is visible to the other user, false if not */ virtual bool VisibleTo(userrec* user); }; /** Holds all information about a user * This class stores all information about a user connected to the irc server. Everything about a * connection is stored here primarily, from the user's socket ID (file descriptor) through to the * user's nickname and hostname. Use the FindNick method of the InspIRCd class to locate a specific user * by nickname, or the FindDescriptor method of the InspIRCd class to find a specific user by their * file descriptor value. */ class CoreExport userrec : public connection { private: /** Pointer to creator. * This is required to make use of core functions * from within the userrec class. */ InspIRCd* ServerInstance; /** A list of channels the user has a pending invite to. * Upon INVITE channels are added, and upon JOIN, the * channels are removed from this list. */ InvitedList invites; /** Number of channels this user is currently on */ unsigned int ChannelCount; /** Cached nick!ident@host value using the real hostname */ char* cached_fullhost; /** Cached nick!ident@ip value using the real IP address */ char* cached_hostip; /** Cached nick!ident@host value using the masked hostname */ char* cached_makehost; /** Cached nick!ident@realhost value using the real hostname */ char* cached_fullrealhost; /** When we erase the user (in the destructor), * we call this method to subtract one from all * mode characters this user is making use of. */ void DecrementModes(); /** Oper-only quit message for this user if non-null */ char* operquit; public: /** Resolvers for looking up this users IP address * This will occur if and when res_reverse completes. * When this class completes its lookup, userrec::dns_done * will be set from false to true. */ UserResolver* res_forward; /** Resolvers for looking up this users hostname * This is instantiated by userrec::StartDNSLookup(), * and on success, instantiates userrec::res_reverse. */ UserResolver* res_reverse; /** User visibility state, see definition of VisData. */ VisData* Visibility; /** Stored reverse lookup from res_forward */ std::string stored_host; /** Starts a DNS lookup of the user's IP. * This will cause two UserResolver classes to be instantiated. * When complete, these objects set userrec::dns_done to true. */ void StartDNSLookup(); /** The users nickname. * An invalid nickname indicates an unregistered connection prior to the NICK command. * Use InspIRCd::IsNick() to validate nicknames. */ char nick[NICKMAX]; /** The users ident reply. * Two characters are added to the user-defined limit to compensate for the tilde etc. */ char ident[IDENTMAX+2]; /** The host displayed to non-opers (used for cloaking etc). * This usually matches the value of userrec::host. */ char dhost[65]; /** The users full name (GECOS). */ char fullname[MAXGECOS+1]; /** The user's mode list. * This is NOT a null terminated string! In the 1.1 version of InspIRCd * this is an array of values in a similar way to channel modes. * A value of 1 in field (modeletter-65) indicates that the mode is * set, for example, to work out if mode +s is set, we check the field * userrec::modes['s'-65] != 0. * The following RFC characters o, w, s, i have constants defined via an * enum, such as UM_SERVERNOTICE and UM_OPETATOR. */ char modes[64]; /** What snomasks are set on this user. * This functions the same as the above modes. */ char snomasks[64]; /** Channels this user is on, and the permissions they have there */ UserChanList chans; /** The server the user is connected to. */ const char* server; /** The user's away message. * If this string is empty, the user is not marked as away. */ char awaymsg[MAXAWAY+1]; /** Number of lines the user can place into the buffer * (up to the global NetBufferSize bytes) before they * are disconnected for excess flood */ int flood; /** Timestamp of current time + connection class timeout. * This user must send USER/NICK before this timestamp is * reached or they will be disconnected. */ time_t timeout; /** The oper type they logged in as, if they are an oper. * This is used to check permissions in operclasses, so that * we can say 'yay' or 'nay' to any commands they issue. * The value of this is the value of a valid 'type name=' tag. */ char oper[NICKMAX]; /** True when DNS lookups are completed. * The UserResolver classes res_forward and res_reverse will * set this value once they complete. */ bool dns_done; /** Number of seconds between PINGs for this user (set from <connect:allow> tag */ unsigned int pingmax; /** Password specified by the user when they registered. * This is stored even if the block doesnt need a password, so that * modules may check it. */ char password[64]; /** User's receive queue. * Lines from the IRCd awaiting processing are stored here. * Upgraded april 2005, old system a bit hairy. */ std::string recvq; /** User's send queue. * Lines waiting to be sent are stored here until their buffer is flushed. */ std::string sendq; /** Flood counters - lines received */ int lines_in; /** Flood counters - time lines_in is due to be reset */ time_t reset_due; /** Flood counters - Highest value lines_in may reach before the user gets disconnected */ long threshold; /** If this is set to true, then all read operations for the user * are dropped into the bit-bucket. * This is used by the global CullList, but please note that setting this value * alone will NOT cause the user to quit. This means it can be used seperately, * for example by shun modules etc. */ bool muted; /** IPV4 or IPV6 ip address. Use SetSockAddr to set this and GetProtocolFamily/ * GetIPString/GetPort to obtain its values. */ sockaddr* ip; /** Initialize the clients sockaddr * @param protocol_family The protocol family of the IP address, AF_INET or AF_INET6 * @param ip A human-readable IP address for this user matching the protcol_family * @param port The port number of this user or zero for a remote user */ void SetSockAddr(int protocol_family, const char* ip, int port); /** Get port number from sockaddr * @return The port number of this user. */ int GetPort(); /** Get protocol family from sockaddr * @return The protocol family of this user, either AF_INET or AF_INET6 */ int GetProtocolFamily(); /** Get IP string from sockaddr, using static internal buffer * @return The IP string */ const char* GetIPString(); /** Get IP string from sockaddr, using caller-specified buffer * @param buf A buffer to use * @return The IP string */ const char* GetIPString(char* buf); /* Write error string */ std::string WriteError; /** Maximum size this user's sendq can become. * Copied from the connect class on connect. */ long sendqmax; /** Maximum size this user's recvq can become. * Copied from the connect class on connect. */ long recvqmax; /** This is true if the user matched an exception when they connected to the ircd. * It isnt valid after this point, and you should not attempt to do anything with it * after this point, because the eline might be removed at a later time, and/or no * longer be applicable to this user. It is only used to save doing the eline lookup * twice (instead we do it once and set this value). */ bool exempt; /** Default constructor * @throw Nothing at present */ userrec(InspIRCd* Instance); /** Returns the full displayed host of the user * This member function returns the hostname of the user as seen by other users * on the server, in nick!ident&at;host form. * @return The full masked host of the user */ virtual char* GetFullHost(); /** Returns the full real host of the user * This member function returns the hostname of the user as seen by other users * on the server, in nick!ident&at;host form. If any form of hostname cloaking is in operation, * e.g. through a module, then this method will ignore it and return the true hostname. * @return The full real host of the user */ virtual char* GetFullRealHost(); /** This clears any cached results that are used for GetFullRealHost() etc. * The results of these calls are cached as generating them can be generally expensive. */ void InvalidateCache(); /** Create a displayable mode string for this users snomasks * @return The notice mask character sequence */ const char* FormatNoticeMasks(); /** Process a snomask modifier string, e.g. +abc-de * @param sm A sequence of notice mask characters * @return The cleaned mode sequence which can be output, * e.g. in the above example if masks c and e are not * valid, this function will return +ab-d */ std::string ProcessNoticeMasks(const char *sm); /** Returns true if a notice mask is set * @param sm A notice mask character to check * @return True if the notice mask is set */ bool IsNoticeMaskSet(unsigned char sm); /** Changed a specific notice mask value * @param sm The server notice mask to change * @param value An on/off value for this mask */ void SetNoticeMask(unsigned char sm, bool value); /** Create a displayable mode string for this users umodes * @param The mode string */ const char* FormatModes(); /** Returns true if a specific mode is set * @param m The user mode * @return True if the mode is set */ bool IsModeSet(unsigned char m); /** Set a specific usermode to on or off * @param m The user mode * @param value On or off setting of the mode */ void SetMode(unsigned char m, bool value); /** Returns true if a user is invited to a channel. * @param channel A channel name to look up * @return True if the user is invited to the given channel */ virtual bool IsInvited(const irc::string &channel); /** Adds a channel to a users invite list (invites them to a channel) * @param channel A channel name to add */ virtual void InviteTo(const irc::string &channel); /** Removes a channel from a users invite list. * This member function is called on successfully joining an invite only channel * to which the user has previously been invited, to clear the invitation. * @param channel The channel to remove the invite to */ virtual void RemoveInvite(const irc::string &channel); /** Returns true or false for if a user can execute a privilaged oper command. * This is done by looking up their oper type from userrec::oper, then referencing * this to their oper classes and checking the commands they can execute. * @param command A command (should be all CAPS) * @return True if this user can execute the command */ bool HasPermission(const std::string &command); /** Calls read() to read some data for this user using their fd. * @param buffer The buffer to read into * @param size The size of data to read * @return The number of bytes read, or -1 if an error occured. */ int ReadData(void* buffer, size_t size); /** This method adds data to the read buffer of the user. * The buffer can grow to any size within limits of the available memory, * managed by the size of a std::string, however if any individual line in * the buffer grows over 600 bytes in length (which is 88 chars over the * RFC-specified limit per line) then the method will return false and the * text will not be inserted. * @param a The string to add to the users read buffer * @return True if the string was successfully added to the read buffer */ bool AddBuffer(std::string a); /** This method returns true if the buffer contains at least one carriage return * character (e.g. one complete line may be read) * @return True if there is at least one complete line in the users buffer */ bool BufferIsReady(); /** This function clears the entire buffer by setting it to an empty string. */ void ClearBuffer(); /** This method returns the first available string at the tail end of the buffer * and advances the tail end of the buffer past the string. This means it is * a one way operation in a similar way to strtok(), and multiple calls return * multiple lines if they are available. The results of this function if there * are no lines to be read are unknown, always use BufferIsReady() to check if * it is ok to read the buffer before calling GetBuffer(). * @return The string at the tail end of this users buffer */ std::string GetBuffer(); /** Sets the write error for a connection. This is done because the actual disconnect * of a client may occur at an inopportune time such as half way through /LIST output. * The WriteErrors of clients are checked at a more ideal time (in the mainloop) and * errored clients purged. * @param error The error string to set. */ void SetWriteError(const std::string &error); /** Returns the write error which last occured on this connection or an empty string * if none occured. * @return The error string which has occured for this user */ const char* GetWriteError(); /** Adds to the user's write buffer. * You may add any amount of text up to this users sendq value, if you exceed the * sendq value, SetWriteError() will be called to set the users error string to * "SendQ exceeded", and further buffer adds will be dropped. * @param data The data to add to the write buffer */ void AddWriteBuf(const std::string &data); /** Flushes as much of the user's buffer to the file descriptor as possible. * This function may not always flush the entire buffer, rather instead as much of it * as it possibly can. If the send() call fails to send the entire buffer, the buffer * position is advanced forwards and the rest of the data sent at the next call to * this method. */ void FlushWriteBuf(); /** Returns the list of channels this user has been invited to but has not yet joined. * @return A list of channels the user is invited to */ InvitedList* GetInviteList(); /** Creates a wildcard host. * Takes a buffer to use and fills the given buffer with the host in the format *!*@hostname * @return The wildcarded hostname in *!*@host form */ char* MakeWildHost(); /** Creates a usermask with real host. * Takes a buffer to use and fills the given buffer with the hostmask in the format user@host * @return the usermask in the format user@host */ char* MakeHost(); /** Creates a usermask with real ip. * Takes a buffer to use and fills the given buffer with the ipmask in the format user@ip * @return the usermask in the format user@ip */ char* MakeHostIP(); /** Shuts down and closes the user's socket * This will not cause the user to be deleted. Use InspIRCd::QuitUser for this, * which will call CloseSocket() for you. */ void CloseSocket(); /** Disconnect a user gracefully * @param user The user to remove * @param r The quit reason to show to normal users * @param oreason The quit reason to show to opers * @return Although this function has no return type, on exit the user provided will no longer exist. */ static void QuitUser(InspIRCd* Instance, userrec *user, const std::string &r, const char* oreason = ""); /** Add the user to WHOWAS system */ void AddToWhoWas(); /** Oper up the user using the given opertype. * This will also give the +o usermode. * @param opertype The oper type to oper as */ void Oper(const std::string &opertype); /** Call this method to find the matching for a user, and to check them against it. */ void CheckClass(); /** Use this method to fully connect a user. * This will send the message of the day, check G/K/E lines, etc. */ void FullConnect(); /** Change this users hash key to a new string. * You should not call this function directly. It is used by the core * to update the users hash entry on a nickchange. * @param New new user_hash key * @return Pointer to userrec in hash (usually 'this') */ userrec* UpdateNickHash(const char* New); /** Force a nickname change. * If the nickname change fails (for example, because the nick in question * already exists) this function will return false, and you must then either * output an error message, or quit the user for nickname collision. * @param newnick The nickname to change to * @return True if the nickchange was successful. */ bool ForceNickChange(const char* newnick); /** Add a client to the system. * This will create a new userrec, insert it into the user_hash, * initialize it as not yet registered, and add it to the socket engine. * @param Instance a pointer to the server instance * @param socket The socket id (file descriptor) this user is on * @param port The port number this user connected on * @param iscached This variable is reserved for future use * @param ip The IP address of the user * @return This function has no return value, but a call to AddClient may remove the user. */ static void AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip); /** Oper down. * This will clear the +o usermode and unset the user's oper type */ void UnOper(); /** Return the number of global clones of this user * @return The global clone count of this user */ unsigned long GlobalCloneCount(); /** Return the number of local clones of this user * @return The local clone count of this user */ unsigned long LocalCloneCount(); /** Remove all clone counts from the user, you should * use this if you change the user's IP address in * userrec::ip after they have registered. */ void RemoveCloneCounts(); /** Write text to this user, appending CR/LF. * @param text A std::string to send to the user */ void Write(std::string text); /** Write text to this user, appending CR/LF. * @param text The format string for text to send to the user * @param ... POD-type format arguments */ void Write(const char *text, ...); /** Write text to this user, appending CR/LF and prepending :server.name * @param text A std::string to send to the user */ void WriteServ(const std::string& text); /** Write text to this user, appending CR/LF and prepending :server.name * @param text The format string for text to send to the user * @param ... POD-type format arguments */ void WriteServ(const char* text, ...); /** Write text to this user, appending CR/LF and prepending :nick!user@host of the user provided in the first parameter. * @param user The user to prepend the :nick!user@host of * @param text A std::string to send to the user */ void WriteFrom(userrec *user, const std::string &text); /** Write text to this user, appending CR/LF and prepending :nick!user@host of the user provided in the first parameter. * @param user The user to prepend the :nick!user@host of * @param text The format string for text to send to the user * @param ... POD-type format arguments */ void WriteFrom(userrec *user, const char* text, ...); /** Write text to the user provided in the first parameter, appending CR/LF, and prepending THIS user's :nick!user@host. * @param dest The user to route the message to * @param text A std::string to send to the user */ void WriteTo(userrec *dest, const std::string &data); /** Write text to the user provided in the first parameter, appending CR/LF, and prepending THIS user's :nick!user@host. * @param dest The user to route the message to * @param text The format string for text to send to the user * @param ... POD-type format arguments */ void WriteTo(userrec *dest, const char *data, ...); /** Write to all users that can see this user (including this user in the list), appending CR/LF * @param text A std::string to send to the users */ void WriteCommon(const std::string &text); /** Write to all users that can see this user (including this user in the list), appending CR/LF * @param text The format string for text to send to the users * @param ... POD-type format arguments */ void WriteCommon(const char* text, ...); /** Write to all users that can see this user (not including this user in the list), appending CR/LF * @param text The format string for text to send to the users * @param ... POD-type format arguments */ void WriteCommonExcept(const char* text, ...); /** Write to all users that can see this user (not including this user in the list), appending CR/LF * @param text A std::string to send to the users */ void WriteCommonExcept(const std::string &text); /** Write a quit message to all common users, as in userrec::WriteCommonExcept but with a specific * quit message for opers only. * @param normal_text Normal user quit message * @param oper_text Oper only quit message */ void WriteCommonQuit(const std::string &normal_text, const std::string &oper_text); /** Write a WALLOPS message from this user to all local opers. * If this user is not opered, the function will return without doing anything. * @param text The format string to send in the WALLOPS message * @param ... Format arguments */ void WriteWallOps(const char* text, ...); /** Write a WALLOPS message from this user to all local opers. * If this user is not opered, the function will return without doing anything. * @param text The text to send in the WALLOPS message */ void WriteWallOps(const std::string &text); /** Return true if the user shares at least one channel with another user * @param other The other user to compare the channel list against * @return True if the given user shares at least one channel with this user */ bool SharesChannelWith(userrec *other); /** Change the displayed host of a user. * ALWAYS use this function, rather than writing userrec::dhost directly, * as this triggers module events allowing the change to be syncronized to * remote servers. This will also emulate a QUIT and rejoin (where configured) * before setting their host field. * @param host The new hostname to set * @return True if the change succeeded, false if it didn't */ bool ChangeDisplayedHost(const char* host); /** Change the ident (username) of a user. * ALWAYS use this function, rather than writing userrec::ident directly, * as this correctly causes the user to seem to quit (where configured) * before setting their ident field. * @param host The new ident to set * @return True if the change succeeded, false if it didn't */ bool ChangeIdent(const char* newident); /** Change a users realname field. * ALWAYS use this function, rather than writing userrec::fullname directly, * as this triggers module events allowing the change to be syncronized to * remote servers. * @param gecos The user's new realname * @return True if the change succeeded, false if otherwise */ bool ChangeName(const char* gecos); /** Send a command to all local users from this user * The command given must be able to send text with the * first parameter as a servermask (e.g. $*), so basically * you should use PRIVMSG or NOTICE. * @param command the command to send * @param text The text format string to send * @param ... Format arguments */ void SendAll(const char* command, char* text, ...); /** Compile a channel list for this user, and send it to the user 'source' * Used internally by WHOIS * @param The user to send the channel list to if it is not too long * @return This user's channel list */ std::string ChannelList(userrec* source); /** Split the channel list in cl which came from dest, and spool it to this user * Used internally by WHOIS * @param dest The user the original channel list came from * @param cl The channel list as a string obtained from userrec::ChannelList() */ void SplitChanList(userrec* dest, const std::string &cl); /** Remove this user from all channels they are on, and delete any that are now empty. * This is used by QUIT, and will not send part messages! */ void PurgeEmptyChannels(); /** Get the connect class which matches this user's host or IP address * @return A reference to this user's connect class */ ConnectClass* GetClass(); /** Show the message of the day to this user */ void ShowMOTD(); /** Show the server RULES file to this user */ void ShowRULES(); /** Set oper-specific quit message shown to opers only when the user quits * (overrides any sent by QuitUser) */ void SetOperQuit(const std::string &oquit); /** Get oper-specific quit message shown only to opers when the user quits. * (overrides any sent by QuitUser) */ const char* GetOperQuit(); /** Handle socket event. * From EventHandler class. * @param et Event type * @param errornum Error number for EVENT_ERROR events */ void HandleEvent(EventType et, int errornum = 0); /** Default destructor */ virtual ~userrec(); }; /* Configuration callbacks */ class ServerConfig; #endif \ No newline at end of file +/* +------------------------------------+ + * | Inspire Internet Relay Chat Daemon | + * +------------------------------------+ + * + * InspIRCd: (C) 2002-2008 InspIRCd Development Team + * See: http://www.inspircd.org/wiki/index.php/Credits + * + * This program is free but copyrighted software; see + * the file COPYING for details. + * + * --------------------------------------------------- + */ + +#ifndef __USERS_H__ +#define __USERS_H__ + +#include "socket.h" +#include "connection.h" +#include "dns.h" + +#include "mode.h" + +/** Channel status for a user + */ +enum ChanStatus { + /** Op */ + STATUS_OP = 4, + /** Halfop */ + STATUS_HOP = 2, + /** Voice */ + STATUS_VOICE = 1, + /** None */ + STATUS_NORMAL = 0 +}; + +/** connect class types + */ +enum ClassTypes { + /** connect:allow */ + CC_ALLOW = 0, + /** connect:deny */ + CC_DENY = 1 +}; + +/** RFC1459 channel modes + */ +enum UserModes { + /** +s: Server notices */ + UM_SERVERNOTICE = 's' - 65, + /** +w: WALLOPS */ + UM_WALLOPS = 'w' - 65, + /** +i: Invisible */ + UM_INVISIBLE = 'i' - 65, + /** +o: Operator */ + UM_OPERATOR = 'o' - 65, + /** +n: Server notice mask */ + UM_SNOMASK = 'n' - 65 +}; + +/** Registration state of a user, e.g. + * have they sent USER, NICK, PASS yet? + */ +enum RegistrationState { + +#ifndef WIN32 // Burlex: This is already defined in win32, luckily it is still 0. + REG_NONE = 0, /* Has sent nothing */ +#endif + + REG_USER = 1, /* Has sent USER */ + REG_NICK = 2, /* Has sent NICK */ + REG_NICKUSER = 3, /* Bitwise combination of REG_NICK and REG_USER */ + REG_ALL = 7 /* REG_NICKUSER plus next bit along */ +}; + +/* Required forward declaration */ +class Channel; +class UserResolver; + +/** Holds information relevent to <connect allow> and <connect deny> tags in the config file. + */ +class CoreExport ConnectClass : public classbase +{ + private: + /** Type of line, either CC_ALLOW or CC_DENY + */ + char type; + /** Connect class name + */ + std::string name; + /** Max time to register the connection in seconds + */ + unsigned int registration_timeout; + /** Number of lines in buffer before excess flood is triggered + */ + unsigned int flood; + /** Host mask for this line + */ + std::string host; + /** Number of seconds between pings for this line + */ + unsigned int pingtime; + /** (Optional) Password for this line + */ + std::string pass; + + /** (Optional) Hash Method for this line + */ + std::string hash; + + /** Threshold value for flood disconnect + */ + unsigned int threshold; + + /** Maximum size of sendq for users in this class (bytes) + */ + unsigned long sendqmax; + + /** Maximum size of recvq for users in this class (bytes) + */ + unsigned long recvqmax; + + /** Local max when connecting by this connection class + */ + unsigned long maxlocal; + + /** Global max when connecting by this connection class + */ + unsigned long maxglobal; + + /** Max channels for this class + */ + unsigned int maxchans; + + /** Port number this connect class applies to + */ + int port; + +public: + + /** Create a new connect class based on an existing connect class. This is required for std::vector (at least under windows). + */ + ConnectClass(const ConnectClass* source) : classbase(), type(source->type), name(source->name), + registration_timeout(source->registration_timeout), flood(source->flood), host(source->host), + pingtime(source->pingtime), pass(source->pass), hash(source->hash), threshold(source->threshold), sendqmax(source->sendqmax), + recvqmax(source->recvqmax), maxlocal(source->maxlocal), maxglobal(source->maxglobal), maxchans(source->maxchans), + port(source->port), RefCount(0), disabled(false), limit(0) + { + } + + /** Create a new connect class with no settings. + */ + ConnectClass() : type(CC_DENY), name("unnamed"), registration_timeout(0), flood(0), host(""), pingtime(0), pass(""), hash(""), + threshold(0), sendqmax(0), recvqmax(0), maxlocal(0), maxglobal(0), RefCount(0), disabled(false), limit(0) + { + } + + /** Create a new connect class to ALLOW connections. + * @param thename Name of the connect class + * @param timeout The registration timeout + * @param fld The flood value + * @param hst The IP mask to allow + * @param ping The ping frequency + * @param pas The password to be used + * @param hsh The hash to be used + * @param thres The flooding threshold + * @param sendq The maximum sendq value + * @param recvq The maximum recvq value + * @param maxl The maximum local sessions + * @param maxg The maximum global sessions + */ + ConnectClass(const std::string &thename, unsigned int timeout, unsigned int fld, const std::string &hst, unsigned int ping, + const std::string &pas, const std::string &hsh, unsigned int thres, unsigned long sendq, unsigned long recvq, + unsigned long maxl, unsigned long maxg, unsigned int maxc, int p = 0) : + type(CC_ALLOW), name(thename), registration_timeout(timeout), flood(fld), host(hst), pingtime(ping), pass(pas), hash(hsh), + threshold(thres), sendqmax(sendq), recvqmax(recvq), maxlocal(maxl), maxglobal(maxg), maxchans(maxc), port(p), RefCount(0), disabled(false), limit(0) { } + + /** Create a new connect class to DENY connections + * @param thename Name of the connect class + * @param hst The IP mask to deny + */ + ConnectClass(const std::string &thename, const std::string &hst) : type(CC_DENY), name(thename), registration_timeout(0), + flood(0), host(hst), pingtime(0), pass(""), hash(""), threshold(0), sendqmax(0), recvqmax(0), maxlocal(0), maxglobal(0), maxchans(0), port(0), RefCount(0), disabled(false), limit(0) + { + } + + /* Create a new connect class based on another class + * @param thename The name of the connect class + * @param source Another connect class to inherit all but the name from + */ + ConnectClass(const std::string &thename, const ConnectClass* source) : type(source->type), name(thename), + registration_timeout(source->registration_timeout), flood(source->flood), host(source->host), + pingtime(source->pingtime), pass(source->pass), hash(source->hash), threshold(source->threshold), sendqmax(source->sendqmax), + recvqmax(source->recvqmax), maxlocal(source->maxlocal), maxglobal(source->maxglobal), maxchans(source->maxchans), + port(source->port), RefCount(0), disabled(false), limit(0) + { + } + + void SetDisabled(bool t) + { + this->disabled = t; + } + + bool GetDisabled() + { + return this->disabled; + } + + /* Update an existing entry with new values + */ + void Update(unsigned int timeout, unsigned int fld, const std::string &hst, unsigned int ping, + const std::string &pas, unsigned int thres, unsigned long sendq, unsigned long recvq, + unsigned long maxl, unsigned long maxg, unsigned int maxc, int p, unsigned long llimit) + { + if (timeout) + registration_timeout = timeout; + if (fld) + flood = fld; + if (!hst.empty()) + host = hst; + if (ping) + pingtime = ping; + if (!pas.empty()) + pass = pas; + if (thres) + threshold = thres; + if (sendq) + sendqmax = sendq; + if (recvq) + recvqmax = recvq; + if (maxl) + maxlocal = maxl; + if (maxg) + maxglobal = maxg; + if (maxc) + maxchans = maxc; + if (p) + port = p; + + this->limit = llimit; + } + + void Update(const std::string &n, const std::string &hst) + { + name = n; + host = hst; + } + + /** Reference counter. Contains an int as to how many users are connected to this class. :) + * This will be 0 if no users are connected. If a is removed from the config, and there + * are 0 users on it - it will go away in RAM. :) + */ + unsigned long RefCount; + + /** If this is true, any attempt to set a user to this class will fail. Default false. This is really private, it's only in the public section thanks to the way this class is written + */ + bool disabled; + + /** How many users may be in this connect class before they are refused? (0 = disabled = default) + */ + unsigned long limit; + + int GetMaxChans() + { + return maxchans; + } + + /** Returns the type, CC_ALLOW or CC_DENY + */ + char GetType() + { + return (type == CC_ALLOW ? CC_ALLOW : CC_DENY); + } + + std::string& GetName() + { + return name; + } + + /** Returns the registration timeout + */ + unsigned int GetRegTimeout() + { + return (registration_timeout ? registration_timeout : 90); + } + + /** Returns the flood limit + */ + unsigned int GetFlood() + { + return (threshold ? flood : 999); + } + + /** Returns the allowed or denied IP mask + */ + const std::string& GetHost() + { + return host; + } + + /** Get port number + */ + int GetPort() + { + return port; + } + + /** Set port number + */ + void SetPort(int p) + { + port = p; + } + + /** Returns the ping frequency + */ + unsigned int GetPingTime() + { + return (pingtime ? pingtime : 120); + } + + /** Returns the password or an empty string + */ + const std::string& GetPass() + { + return pass; + } + + /** Returns the hash or an empty string + */ + const std::string& GetHash() + { + return hash; + } + + /** Returns the flood threshold value + */ + unsigned int GetThreshold() + { + return (threshold ? threshold : 1); + } + + /** Returns the maximum sendq value + */ + unsigned long GetSendqMax() + { + return (sendqmax ? sendqmax : 262114); + } + + /** Returns the maximum recvq value + */ + unsigned long GetRecvqMax() + { + return (recvqmax ? recvqmax : 4096); + } + + /** Returusn the maximum number of local sessions + */ + unsigned long GetMaxLocal() + { + return maxlocal; + } + + /** Returns the maximum number of global sessions + */ + unsigned long GetMaxGlobal() + { + return maxglobal; + } +}; + +/** Holds a complete list of all channels to which a user has been invited and has not yet joined, and the time at which they'll expire. + */ +typedef std::vector< std::pair > InvitedList; + +/** Holds a complete list of all allow and deny tags from the configuration file (connection classes) + */ +typedef std::vector ClassVector; + +/** Typedef for the list of user-channel records for a user + */ +typedef std::map UserChanList; + +/** Shorthand for an iterator into a UserChanList + */ +typedef UserChanList::iterator UCListIter; + +/* Required forward declaration + */ +class User; + +/** Visibility data for a user. + * If a user has a non-null instance of this class in their User, + * then it is used to determine if this user is visible to other users + * or not. + */ +class CoreExport VisData +{ + public: + /** Create a visdata + */ + VisData(); + /** Destroy a visdata + */ + virtual ~VisData(); + /** Is this user visible to some other user? + * @param user The other user to compare to + * @return true True if the user is visible to the other user, false if not + */ + virtual bool VisibleTo(User* user); +}; + +/** Holds all information about a user + * This class stores all information about a user connected to the irc server. Everything about a + * connection is stored here primarily, from the user's socket ID (file descriptor) through to the + * user's nickname and hostname. Use the FindNick method of the InspIRCd class to locate a specific user + * by nickname, or the FindDescriptor method of the InspIRCd class to find a specific user by their + * file descriptor value. + */ +class CoreExport User : public connection +{ + private: + /** Pointer to creator. + * This is required to make use of core functions + * from within the User class. + */ + InspIRCd* ServerInstance; + + /** A list of channels the user has a pending invite to. + * Upon INVITE channels are added, and upon JOIN, the + * channels are removed from this list. + */ + InvitedList invites; + + /** Number of channels this user is currently on + */ + unsigned int ChannelCount; + + /** Cached nick!ident@host value using the real hostname + */ + char* cached_fullhost; + + /** Cached nick!ident@ip value using the real IP address + */ + char* cached_hostip; + + /** Cached nick!ident@host value using the masked hostname + */ + char* cached_makehost; + + /** Cached nick!ident@realhost value using the real hostname + */ + char* cached_fullrealhost; + + /** When we erase the user (in the destructor), + * we call this method to subtract one from all + * mode characters this user is making use of. + */ + void DecrementModes(); + + /** Max channels for this user + */ + unsigned int MaxChans; + + std::map* AllowedOperCommands; + + /** Allowed user modes from oper classes. */ + bool* AllowedUserModes; + + /** Allowed channel modes from oper classes. */ + bool* AllowedChanModes; + + public: + /** Module responsible for raw i/o + */ + Module* io; + + /** Contains a pointer to the connect class a user is on from - this will be NULL for remote connections. + * The pointer is guarenteed to *always* be valid. :) + */ + ConnectClass *MyClass; + + /** Resolvers for looking up this users IP address + * This will occur if and when res_reverse completes. + * When this class completes its lookup, User::dns_done + * will be set from false to true. + */ + UserResolver* res_forward; + + /** Resolvers for looking up this users hostname + * This is instantiated by User::StartDNSLookup(), + * and on success, instantiates User::res_reverse. + */ + UserResolver* res_reverse; + + /** User visibility state, see definition of VisData. + */ + VisData* Visibility; + + /** Stored reverse lookup from res_forward + */ + std::string stored_host; + + /** Starts a DNS lookup of the user's IP. + * This will cause two UserResolver classes to be instantiated. + * When complete, these objects set User::dns_done to true. + */ + void StartDNSLookup(); + + unsigned int GetMaxChans(); + + /** The users nickname. + * An invalid nickname indicates an unregistered connection prior to the NICK command. + * Use InspIRCd::IsNick() to validate nicknames. + */ + char nick[NICKMAX]; + + /** The user's unique identifier. + * This is the unique identifier which the user has across the network. + */ + char uuid[UUID_LENGTH]; + + /** The users ident reply. + * Two characters are added to the user-defined limit to compensate for the tilde etc. + */ + char ident[IDENTMAX+2]; + + /** The host displayed to non-opers (used for cloaking etc). + * This usually matches the value of User::host. + */ + char dhost[65]; + + /** The users full name (GECOS). + */ + char fullname[MAXGECOS+1]; + + /** The user's mode list. + * This is NOT a null terminated string! In the 1.1 version of InspIRCd + * this is an array of values in a similar way to channel modes. + * A value of 1 in field (modeletter-65) indicates that the mode is + * set, for example, to work out if mode +s is set, we check the field + * User::modes['s'-65] != 0. + * The following RFC characters o, w, s, i have constants defined via an + * enum, such as UM_SERVERNOTICE and UM_OPETATOR. + */ + char modes[64]; + + /** What snomasks are set on this user. + * This functions the same as the above modes. + */ + char snomasks[64]; + + /** Channels this user is on, and the permissions they have there + */ + UserChanList chans; + + /** The server the user is connected to. + */ + const char* server; + + /** The user's away message. + * If this string is empty, the user is not marked as away. + */ + char awaymsg[MAXAWAY+1]; + + /** Time the user last went away. + * This is ONLY RELIABLE if user IS_AWAY()! + */ + time_t awaytime; + + /** Timestamp of current time + connection class timeout. + * This user must send USER/NICK before this timestamp is + * reached or they will be disconnected. + */ + time_t timeout; + + /** The oper type they logged in as, if they are an oper. + * This is used to check permissions in operclasses, so that + * we can say 'yay' or 'nay' to any commands they issue. + * The value of this is the value of a valid 'type name=' tag. + */ + char oper[NICKMAX]; + + /** True when DNS lookups are completed. + * The UserResolver classes res_forward and res_reverse will + * set this value once they complete. + */ + bool dns_done; + + /** Password specified by the user when they registered. + * This is stored even if the block doesnt need a password, so that + * modules may check it. + */ + char password[64]; + + /** User's receive queue. + * Lines from the IRCd awaiting processing are stored here. + * Upgraded april 2005, old system a bit hairy. + */ + std::string recvq; + + /** User's send queue. + * Lines waiting to be sent are stored here until their buffer is flushed. + */ + std::string sendq; + + /** Message user will quit with. Not to be set externally. + */ + std::string quitmsg; + + /** Quit message shown to opers - not to be set externally. + */ + std::string operquitmsg; + + /** Whether or not to send an snotice about this user's quitting + */ + bool quietquit; + + /** Flood counters - lines received + */ + unsigned int lines_in; + + /** Flood counters - time lines_in is due to be reset + */ + time_t reset_due; + + /** If this is set to true, then all socket operations for the user + * are dropped into the bit-bucket. + * This value is set by QuitUser, and is not needed seperately from that call. + * Please note that setting this value alone will NOT cause the user to quit. + */ + bool quitting; + + /** IPV4 or IPV6 ip address. Use SetSockAddr to set this and GetProtocolFamily/ + * GetIPString/GetPort to obtain its values. + */ + sockaddr* ip; + + /** Set by GetIPString() to avoid constantly re-grabbing IP via sockets voodoo. + */ + std::string cachedip; + + /** Initialize the clients sockaddr + * @param protocol_family The protocol family of the IP address, AF_INET or AF_INET6 + * @param ip A human-readable IP address for this user matching the protcol_family + * @param port The port number of this user or zero for a remote user + */ + void SetSockAddr(int protocol_family, const char* ip, int port); + + /** Get port number from sockaddr + * @return The port number of this user. + */ + int GetPort(); + + /** Get protocol family from sockaddr + * @return The protocol family of this user, either AF_INET or AF_INET6 + */ + int GetProtocolFamily(); + + /** Get IP string from sockaddr, using static internal buffer + * @return The IP string + */ + const char* GetIPString(bool translate4in6 = true); + + /* Write error string + */ + std::string WriteError; + + /** This is true if the user matched an exception (E:Line). It is used to save time on ban checks. + */ + bool exempt; + + /** This value contains how far into the penalty threshold the user is. Once its over + * the penalty threshold then commands are held and processed on-timer. + */ + int Penalty; + + /** True if we are flushing penalty lines + */ + bool OverPenalty; + + /** If this bool is set then penalty rules do not apply to this user + */ + bool ExemptFromPenalty; + + /** Default constructor + * @throw CoreException if the UID allocated to the user already exists + * @param Instance Creator instance + * @param uid User UUID, or empty to allocate one automatically + */ + User(InspIRCd* Instance, const std::string &uid = ""); + + /** Check if the user matches a G or K line, and disconnect them if they do + */ + void CheckLines(); + + /** Returns the full displayed host of the user + * This member function returns the hostname of the user as seen by other users + * on the server, in nick!ident&at;host form. + * @return The full masked host of the user + */ + virtual char* GetFullHost(); + + /** Returns the full real host of the user + * This member function returns the hostname of the user as seen by other users + * on the server, in nick!ident&at;host form. If any form of hostname cloaking is in operation, + * e.g. through a module, then this method will ignore it and return the true hostname. + * @return The full real host of the user + */ + virtual char* GetFullRealHost(); + + /** This clears any cached results that are used for GetFullRealHost() etc. + * The results of these calls are cached as generating them can be generally expensive. + */ + void InvalidateCache(); + + /** Create a displayable mode string for this users snomasks + * @return The notice mask character sequence + */ + const char* FormatNoticeMasks(); + + /** Process a snomask modifier string, e.g. +abc-de + * @param sm A sequence of notice mask characters + * @return The cleaned mode sequence which can be output, + * e.g. in the above example if masks c and e are not + * valid, this function will return +ab-d + */ + std::string ProcessNoticeMasks(const char *sm); + + /** Returns true if a notice mask is set + * @param sm A notice mask character to check + * @return True if the notice mask is set + */ + bool IsNoticeMaskSet(unsigned char sm); + + /** Changed a specific notice mask value + * @param sm The server notice mask to change + * @param value An on/off value for this mask + */ + void SetNoticeMask(unsigned char sm, bool value); + + /** Create a displayable mode string for this users umodes + * @param The mode string + */ + const char* FormatModes(); + + /** Returns true if a specific mode is set + * @param m The user mode + * @return True if the mode is set + */ + bool IsModeSet(unsigned char m); + + /** Set a specific usermode to on or off + * @param m The user mode + * @param value On or off setting of the mode + */ + void SetMode(unsigned char m, bool value); + + /** Returns true if a user is invited to a channel. + * @param channel A channel name to look up + * @return True if the user is invited to the given channel + */ + virtual bool IsInvited(const irc::string &channel); + + /** Adds a channel to a users invite list (invites them to a channel) + * @param channel A channel name to add + * @param timeout When the invite should expire (0 == never) + */ + virtual void InviteTo(const irc::string &channel, time_t timeout); + + /** Removes a channel from a users invite list. + * This member function is called on successfully joining an invite only channel + * to which the user has previously been invited, to clear the invitation. + * @param channel The channel to remove the invite to + */ + virtual void RemoveInvite(const irc::string &channel); + + /** Returns true or false for if a user can execute a privilaged oper command. + * This is done by looking up their oper type from User::oper, then referencing + * this to their oper classes and checking the commands they can execute. + * @param command A command (should be all CAPS) + * @return True if this user can execute the command + */ + bool HasPermission(const std::string &command); + + /** Returns true or false if a user can set a privileged user or channel mode. + * This is done by looking up their oper type from User::oper, then referencing + * this to their oper classes, and checking the modes they can set. + * @param mode The mode the check + * @param type ModeType (MODETYPE_CHANNEL or MODETYPE_USER). + * @return True if the user can set or unset this mode. + */ + bool HasModePermission(unsigned char mode, ModeType type); + + /** Calls read() to read some data for this user using their fd. + * @param buffer The buffer to read into + * @param size The size of data to read + * @return The number of bytes read, or -1 if an error occured. + */ + int ReadData(void* buffer, size_t size); + + /** This method adds data to the read buffer of the user. + * The buffer can grow to any size within limits of the available memory, + * managed by the size of a std::string, however if any individual line in + * the buffer grows over 600 bytes in length (which is 88 chars over the + * RFC-specified limit per line) then the method will return false and the + * text will not be inserted. + * @param a The string to add to the users read buffer + * @return True if the string was successfully added to the read buffer + */ + bool AddBuffer(std::string a); + + /** This method returns true if the buffer contains at least one carriage return + * character (e.g. one complete line may be read) + * @return True if there is at least one complete line in the users buffer + */ + bool BufferIsReady(); + + /** This function clears the entire buffer by setting it to an empty string. + */ + void ClearBuffer(); + + /** This method returns the first available string at the tail end of the buffer + * and advances the tail end of the buffer past the string. This means it is + * a one way operation in a similar way to strtok(), and multiple calls return + * multiple lines if they are available. The results of this function if there + * are no lines to be read are unknown, always use BufferIsReady() to check if + * it is ok to read the buffer before calling GetBuffer(). + * @return The string at the tail end of this users buffer + */ + std::string GetBuffer(); + + /** Sets the write error for a connection. This is done because the actual disconnect + * of a client may occur at an inopportune time such as half way through /LIST output. + * The WriteErrors of clients are checked at a more ideal time (in the mainloop) and + * errored clients purged. + * @param error The error string to set. + */ + void SetWriteError(const std::string &error); + + /** Returns the write error which last occured on this connection or an empty string + * if none occured. + * @return The error string which has occured for this user + */ + const char* GetWriteError(); + + /** Adds to the user's write buffer. + * You may add any amount of text up to this users sendq value, if you exceed the + * sendq value, SetWriteError() will be called to set the users error string to + * "SendQ exceeded", and further buffer adds will be dropped. + * @param data The data to add to the write buffer + */ + void AddWriteBuf(const std::string &data); + + /** Flushes as much of the user's buffer to the file descriptor as possible. + * This function may not always flush the entire buffer, rather instead as much of it + * as it possibly can. If the send() call fails to send the entire buffer, the buffer + * position is advanced forwards and the rest of the data sent at the next call to + * this method. + */ + void FlushWriteBuf(); + + /** Returns the list of channels this user has been invited to but has not yet joined. + * @return A list of channels the user is invited to + */ + InvitedList* GetInviteList(); + + /** Creates a wildcard host. + * Takes a buffer to use and fills the given buffer with the host in the format *!*@hostname + * @return The wildcarded hostname in *!*@host form + */ + char* MakeWildHost(); + + /** Creates a usermask with real host. + * Takes a buffer to use and fills the given buffer with the hostmask in the format user@host + * @return the usermask in the format user@host + */ + char* MakeHost(); + + /** Creates a usermask with real ip. + * Takes a buffer to use and fills the given buffer with the ipmask in the format user@ip + * @return the usermask in the format user@ip + */ + char* MakeHostIP(); + + /** Shuts down and closes the user's socket + * This will not cause the user to be deleted. Use InspIRCd::QuitUser for this, + * which will call CloseSocket() for you. + */ + void CloseSocket(); + + /** Add the user to WHOWAS system + */ + void AddToWhoWas(); + + /** Oper up the user using the given opertype. + * This will also give the +o usermode. + * @param opertype The oper type to oper as + */ + void Oper(const std::string &opertype, const std::string &opername); + + /** Call this method to find the matching for a user, and to check them against it. + */ + void CheckClass(); + + /** Use this method to fully connect a user. + * This will send the message of the day, check G/K/E lines, etc. + */ + void FullConnect(); + + /** Change this users hash key to a new string. + * You should not call this function directly. It is used by the core + * to update the users hash entry on a nickchange. + * @param New new user_hash key + * @return Pointer to User in hash (usually 'this') + */ + User* UpdateNickHash(const char* New); + + /** Force a nickname change. + * If the nickname change fails (for example, because the nick in question + * already exists) this function will return false, and you must then either + * output an error message, or quit the user for nickname collision. + * @param newnick The nickname to change to + * @return True if the nickchange was successful. + */ + bool ForceNickChange(const char* newnick); + + /** Oper down. + * This will clear the +o usermode and unset the user's oper type + */ + void UnOper(); + + /** Write text to this user, appending CR/LF. + * @param text A std::string to send to the user + */ + void Write(std::string text); + + /** Write text to this user, appending CR/LF. + * @param text The format string for text to send to the user + * @param ... POD-type format arguments + */ + void Write(const char *text, ...) CUSTOM_PRINTF(2, 3); + + /** Write text to this user, appending CR/LF and prepending :server.name + * @param text A std::string to send to the user + */ + void WriteServ(const std::string& text); + + /** Write text to this user, appending CR/LF and prepending :server.name + * @param text The format string for text to send to the user + * @param ... POD-type format arguments + */ + void WriteServ(const char* text, ...) CUSTOM_PRINTF(2, 3); + + void WriteNumeric(unsigned int numeric, const char* text, ...) CUSTOM_PRINTF(3, 4); + + void WriteNumeric(unsigned int numeric, const std::string &text); + + /** Write text to this user, appending CR/LF and prepending :nick!user@host of the user provided in the first parameter. + * @param user The user to prepend the :nick!user@host of + * @param text A std::string to send to the user + */ + void WriteFrom(User *user, const std::string &text); + + /** Write text to this user, appending CR/LF and prepending :nick!user@host of the user provided in the first parameter. + * @param user The user to prepend the :nick!user@host of + * @param text The format string for text to send to the user + * @param ... POD-type format arguments + */ + void WriteFrom(User *user, const char* text, ...) CUSTOM_PRINTF(3, 4); + + /** Write text to the user provided in the first parameter, appending CR/LF, and prepending THIS user's :nick!user@host. + * @param dest The user to route the message to + * @param text A std::string to send to the user + */ + void WriteTo(User *dest, const std::string &data); + + /** Write text to the user provided in the first parameter, appending CR/LF, and prepending THIS user's :nick!user@host. + * @param dest The user to route the message to + * @param text The format string for text to send to the user + * @param ... POD-type format arguments + */ + void WriteTo(User *dest, const char *data, ...) CUSTOM_PRINTF(3, 4); + + /** Write to all users that can see this user (including this user in the list), appending CR/LF + * @param text A std::string to send to the users + */ + void WriteCommon(const std::string &text); + + /** Write to all users that can see this user (including this user in the list), appending CR/LF + * @param text The format string for text to send to the users + * @param ... POD-type format arguments + */ + void WriteCommon(const char* text, ...) CUSTOM_PRINTF(2, 3); + + /** Write to all users that can see this user (not including this user in the list), appending CR/LF + * @param text The format string for text to send to the users + * @param ... POD-type format arguments + */ + void WriteCommonExcept(const char* text, ...) CUSTOM_PRINTF(2, 3); + + /** Write to all users that can see this user (not including this user in the list), appending CR/LF + * @param text A std::string to send to the users + */ + void WriteCommonExcept(const std::string &text); + + /** Write a quit message to all common users, as in User::WriteCommonExcept but with a specific + * quit message for opers only. + * @param normal_text Normal user quit message + * @param oper_text Oper only quit message + */ + void WriteCommonQuit(const std::string &normal_text, const std::string &oper_text); + + /** Write a WALLOPS message from this user to all local opers. + * If this user is not opered, the function will return without doing anything. + * @param text The format string to send in the WALLOPS message + * @param ... Format arguments + */ + void WriteWallOps(const char* text, ...) CUSTOM_PRINTF(2, 3); + + /** Write a WALLOPS message from this user to all local opers. + * If this user is not opered, the function will return without doing anything. + * @param text The text to send in the WALLOPS message + */ + void WriteWallOps(const std::string &text); + + /** Return true if the user shares at least one channel with another user + * @param other The other user to compare the channel list against + * @return True if the given user shares at least one channel with this user + */ + bool SharesChannelWith(User *other); + + /** Change the displayed host of a user. + * ALWAYS use this function, rather than writing User::dhost directly, + * as this triggers module events allowing the change to be syncronized to + * remote servers. This will also emulate a QUIT and rejoin (where configured) + * before setting their host field. + * @param host The new hostname to set + * @return True if the change succeeded, false if it didn't + */ + bool ChangeDisplayedHost(const char* host); + + /** Change the ident (username) of a user. + * ALWAYS use this function, rather than writing User::ident directly, + * as this correctly causes the user to seem to quit (where configured) + * before setting their ident field. + * @param host The new ident to set + * @return True if the change succeeded, false if it didn't + */ + bool ChangeIdent(const char* newident); + + /** Change a users realname field. + * ALWAYS use this function, rather than writing User::fullname directly, + * as this triggers module events allowing the change to be syncronized to + * remote servers. + * @param gecos The user's new realname + * @return True if the change succeeded, false if otherwise + */ + bool ChangeName(const char* gecos); + + /** Send a command to all local users from this user + * The command given must be able to send text with the + * first parameter as a servermask (e.g. $*), so basically + * you should use PRIVMSG or NOTICE. + * @param command the command to send + * @param text The text format string to send + * @param ... Format arguments + */ + void SendAll(const char* command, const char* text, ...) CUSTOM_PRINTF(3, 4); + + /** Compile a channel list for this user, and send it to the user 'source' + * Used internally by WHOIS + * @param The user to send the channel list to if it is not too long + * @return This user's channel list + */ + std::string ChannelList(User* source); + + /** Split the channel list in cl which came from dest, and spool it to this user + * Used internally by WHOIS + * @param dest The user the original channel list came from + * @param cl The channel list as a string obtained from User::ChannelList() + */ + void SplitChanList(User* dest, const std::string &cl); + + /** Remove this user from all channels they are on, and delete any that are now empty. + * This is used by QUIT, and will not send part messages! + */ + void PurgeEmptyChannels(); + + /** Get the connect class which this user belongs to. + * @return A pointer to this user's connect class + */ + ConnectClass *GetClass(); + + /** Set the connect class to which this user belongs to. + * @param explicit_name Set this string to tie the user to a specific class name. Otherwise, the class is fitted by checking tags from the configuration file. + * @return A reference to this user's current connect class. + */ + ConnectClass *SetClass(const std::string &explicit_name = ""); + + /** Show the message of the day to this user + */ + void ShowMOTD(); + + /** Show the server RULES file to this user + */ + void ShowRULES(); + + /** Set oper-specific quit message shown to opers only when the user quits + * (overrides any sent by QuitUser) + */ + void SetOperQuit(const std::string &oquit); + + /** Get oper-specific quit message shown only to opers when the user quits. + * (overrides any sent by QuitUser) + */ + const char* GetOperQuit(); + + /** Increases a user's command penalty by a set amount. + */ + void IncreasePenalty(int increase); + + /** Decreases a user's command penalty by a set amount. + */ + void DecreasePenalty(int decrease); + + /** Handle socket event. + * From EventHandler class. + * @param et Event type + * @param errornum Error number for EVENT_ERROR events + */ + void HandleEvent(EventType et, int errornum = 0); + + /** Default destructor + */ + virtual ~User(); +}; + +/** Derived from Resolver, and performs user forward/reverse lookups. + */ +class CoreExport UserResolver : public Resolver +{ + private: + /** User this class is 'attached' to. + */ + User* bound_user; + /** File descriptor teh lookup is bound to + */ + int bound_fd; + /** True if the lookup is forward, false if is a reverse lookup + */ + bool fwd; + public: + /** Create a resolver. + * @param Instance The creating instance + * @param user The user to begin lookup on + * @param to_resolve The IP or host to resolve + * @param qt The query type + * @param cache Modified by the constructor if the result was cached + */ + UserResolver(InspIRCd* Instance, User* user, std::string to_resolve, QueryType qt, bool &cache); + + /** Called on successful lookup + * @param result Result string + * @param ttl Time to live for result + * @param cached True if the result was found in the cache + * @param resultnum Result number, we are only interested in result 0 + */ + void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached, int resultnum = 0); + + /** Called on failed lookup + * @param e Error code + * @param errormessage Error message string + */ + void OnError(ResolverError e, const std::string &errormessage); +}; + +/* Configuration callbacks */ +//class ServerConfig; + +#endif +