1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
18 #include "inspircd_config.h"
21 #include "inspstring.h"
22 #include "connection.h"
26 /** Channel status for a user
39 /** connect class types
48 /** RFC1459 channel modes
51 /** +s: Server notices */
52 UM_SERVERNOTICE = 's' - 65,
54 UM_WALLOPS = 'w' - 65,
56 UM_INVISIBLE = 'i' - 65,
58 UM_OPERATOR = 'o' - 65,
59 /** +n: Server notice mask */
63 /** Registration state of a user, e.g.
64 * have they sent USER, NICK, PASS yet?
66 enum RegistrationState {
68 #ifndef WIN32 // Burlex: This is already defined in win32, luckily it is still 0.
69 REG_NONE = 0, /* Has sent nothing */
72 REG_USER = 1, /* Has sent USER */
73 REG_NICK = 2, /* Has sent NICK */
74 REG_NICKUSER = 3, /* Bitwise combination of REG_NICK and REG_USER */
75 REG_ALL = 7 /* REG_NICKUSER plus next bit along */
78 /* Required forward declaration */
81 /** Derived from Resolver, and performs user forward/reverse lookups.
83 class CoreExport UserResolver : public Resolver
86 /** User this class is 'attached' to.
89 /** File descriptor teh lookup is bound to
92 /** True if the lookup is forward, false if is a reverse lookup
96 /** Create a resolver.
97 * @param Instance The creating instance
98 * @param user The user to begin lookup on
99 * @param to_resolve The IP or host to resolve
100 * @param qt The query type
101 * @param cache Modified by the constructor if the result was cached
103 UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt, bool &cache);
105 /** Called on successful lookup
106 * @param result Result string
107 * @param ttl Time to live for result
108 * @param cached True if the result was found in the cache
109 * @param resultnum Result number, we are only interested in result 0
111 void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached, int resultnum = 0);
113 /** Called on failed lookup
114 * @param e Error code
115 * @param errormessage Error message string
117 void OnError(ResolverError e, const std::string &errormessage);
121 /** Holds information relevent to <connect allow> and <connect deny> tags in the config file.
123 class CoreExport ConnectClass : public classbase
126 /** Type of line, either CC_ALLOW or CC_DENY
129 /** Connect class name
132 /** Max time to register the connection in seconds
134 unsigned int registration_timeout;
135 /** Number of lines in buffer before excess flood is triggered
138 /** Host mask for this line
141 /** Number of seconds between pings for this line
143 unsigned int pingtime;
144 /** (Optional) Password for this line
148 /** Threshold value for flood disconnect
150 unsigned int threshold;
152 /** Maximum size of sendq for users in this class (bytes)
154 unsigned long sendqmax;
156 /** Maximum size of recvq for users in this class (bytes)
158 unsigned long recvqmax;
160 /** Local max when connecting by this connection class
162 unsigned long maxlocal;
164 /** Global max when connecting by this connection class
166 unsigned long maxglobal;
168 /** Max channels for this class
170 unsigned int maxchans;
172 /** Port number this connect class applies to
178 /** Create a new connect class with no settings.
180 ConnectClass() : type(CC_DENY), name("unnamed"), registration_timeout(0), flood(0), host(""), pingtime(0), pass(""),
181 threshold(0), sendqmax(0), recvqmax(0), maxlocal(0), maxglobal(0) { }
183 /** Create a new connect class to ALLOW connections.
184 * @param thename Name of the connect class
185 * @param timeout The registration timeout
186 * @param fld The flood value
187 * @param hst The IP mask to allow
188 * @param ping The ping frequency
189 * @param pas The password to be used
190 * @param thres The flooding threshold
191 * @param sendq The maximum sendq value
192 * @param recvq The maximum recvq value
193 * @param maxl The maximum local sessions
194 * @param maxg The maximum global sessions
196 ConnectClass(const std::string &thename, unsigned int timeout, unsigned int fld, const std::string &hst, unsigned int ping,
197 const std::string &pas, unsigned int thres, unsigned long sendq, unsigned long recvq,
198 unsigned long maxl, unsigned long maxg, unsigned int maxc, int p = 0) :
199 type(CC_ALLOW), name(thename), registration_timeout(timeout), flood(fld), host(hst), pingtime(ping), pass(pas),
200 threshold(thres), sendqmax(sendq), recvqmax(recvq), maxlocal(maxl), maxglobal(maxg), maxchans(maxc), port(p) { }
202 /** Create a new connect class to DENY connections
203 * @param thename Name of the connect class
204 * @param hst The IP mask to deny
206 ConnectClass(const std::string &thename, const std::string &hst) : type(CC_DENY), name(thename), registration_timeout(0),
207 flood(0), host(hst), pingtime(0), pass(""), threshold(0), sendqmax(0), recvqmax(0), maxlocal(0), maxglobal(0), maxchans(0), port(0) { }
209 /* Create a new connect class based on another class
210 * @param thename The name of the connect class
211 * @param source Another connect class to inherit all but the name from
213 ConnectClass(const std::string &thename, const ConnectClass &source) : type(source.type), name(thename),
214 registration_timeout(source.registration_timeout), flood(source.flood), host(source.host),
215 pingtime(source.pingtime), pass(source.pass), threshold(source.threshold), sendqmax(source.sendqmax),
216 recvqmax(source.recvqmax), maxlocal(source.maxlocal), maxglobal(source.maxglobal), maxchans(source.maxchans),
221 /* Update an existing entry with new values
223 void Update(unsigned int timeout, unsigned int fld, const std::string &hst, unsigned int ping,
224 const std::string &pas, unsigned int thres, unsigned long sendq, unsigned long recvq,
225 unsigned long maxl, unsigned long maxg, unsigned int maxc, int p)
228 registration_timeout = timeout;
258 /** Returns the type, CC_ALLOW or CC_DENY
262 return (type == CC_ALLOW ? CC_ALLOW : CC_DENY);
265 std::string& GetName()
270 /** Returns the registration timeout
272 unsigned int GetRegTimeout()
274 return (registration_timeout ? registration_timeout : 90);
277 /** Returns the flood limit
279 unsigned int GetFlood()
281 return (threshold ? flood : 999);
284 /** Returns the allowed or denied IP mask
286 const std::string& GetHost()
305 /** Returns the ping frequency
307 unsigned int GetPingTime()
309 return (pingtime ? pingtime : 120);
312 /** Returns the password or an empty string
314 const std::string& GetPass()
319 /** Returns the flood threshold value
321 unsigned int GetThreshold()
323 return (threshold ? threshold : 1);
326 /** Returns the maximum sendq value
328 unsigned long GetSendqMax()
330 return (sendqmax ? sendqmax : 262114);
333 /** Returns the maximum recvq value
335 unsigned long GetRecvqMax()
337 return (recvqmax ? recvqmax : 4096);
340 /** Returusn the maximum number of local sessions
342 unsigned long GetMaxLocal()
347 /** Returns the maximum number of global sessions
349 unsigned long GetMaxGlobal()
354 bool operator= (ConnectClass &other)
356 return (other.GetName() == name);
360 /** Holds a complete list of all channels to which a user has been invited and has not yet joined.
362 typedef std::vector<irc::string> InvitedList;
364 /** Holds a complete list of all allow and deny tags from the configuration file (connection classes)
366 typedef std::vector<ConnectClass> ClassVector;
368 /** Typedef for the list of user-channel records for a user
370 typedef std::map<chanrec*, char> UserChanList;
372 /** Shorthand for an iterator into a UserChanList
374 typedef UserChanList::iterator UCListIter;
376 /* Required forward declaration
380 /** Visibility data for a user.
381 * If a user has a non-null instance of this class in their userrec,
382 * then it is used to determine if this user is visible to other users
385 class CoreExport VisData
391 /** Destroy a visdata
394 /** Is this user visible to some other user?
395 * @param user The other user to compare to
396 * @return true True if the user is visible to the other user, false if not
398 virtual bool VisibleTo(userrec* user);
401 /** Holds all information about a user
402 * This class stores all information about a user connected to the irc server. Everything about a
403 * connection is stored here primarily, from the user's socket ID (file descriptor) through to the
404 * user's nickname and hostname. Use the FindNick method of the InspIRCd class to locate a specific user
405 * by nickname, or the FindDescriptor method of the InspIRCd class to find a specific user by their
406 * file descriptor value.
408 class CoreExport userrec : public connection
411 /** Pointer to creator.
412 * This is required to make use of core functions
413 * from within the userrec class.
415 InspIRCd* ServerInstance;
417 /** A list of channels the user has a pending invite to.
418 * Upon INVITE channels are added, and upon JOIN, the
419 * channels are removed from this list.
423 /** Number of channels this user is currently on
425 unsigned int ChannelCount;
427 /** Cached nick!ident@host value using the real hostname
429 char* cached_fullhost;
431 /** Cached nick!ident@ip value using the real IP address
435 /** Cached nick!ident@host value using the masked hostname
437 char* cached_makehost;
439 /** Cached nick!ident@realhost value using the real hostname
441 char* cached_fullrealhost;
443 /** When we erase the user (in the destructor),
444 * we call this method to subtract one from all
445 * mode characters this user is making use of.
447 void DecrementModes();
449 /** Oper-only quit message for this user if non-null
453 /** Max channels for this user
455 unsigned int MaxChans;
458 /** Resolvers for looking up this users IP address
459 * This will occur if and when res_reverse completes.
460 * When this class completes its lookup, userrec::dns_done
461 * will be set from false to true.
463 UserResolver* res_forward;
465 /** Resolvers for looking up this users hostname
466 * This is instantiated by userrec::StartDNSLookup(),
467 * and on success, instantiates userrec::res_reverse.
469 UserResolver* res_reverse;
471 /** User visibility state, see definition of VisData.
475 /** Stored reverse lookup from res_forward
477 std::string stored_host;
479 /** Starts a DNS lookup of the user's IP.
480 * This will cause two UserResolver classes to be instantiated.
481 * When complete, these objects set userrec::dns_done to true.
483 void StartDNSLookup();
485 unsigned int GetMaxChans();
487 /** The users nickname.
488 * An invalid nickname indicates an unregistered connection prior to the NICK command.
489 * Use InspIRCd::IsNick() to validate nicknames.
493 /** The user's unique identifier.
494 * This is the unique identifier which the user has across the network.
496 char uuid[UUID_LENGTH];
498 /** The users ident reply.
499 * Two characters are added to the user-defined limit to compensate for the tilde etc.
501 char ident[IDENTMAX+2];
503 /** The host displayed to non-opers (used for cloaking etc).
504 * This usually matches the value of userrec::host.
508 /** The users full name (GECOS).
510 char fullname[MAXGECOS+1];
512 /** The user's mode list.
513 * This is NOT a null terminated string! In the 1.1 version of InspIRCd
514 * this is an array of values in a similar way to channel modes.
515 * A value of 1 in field (modeletter-65) indicates that the mode is
516 * set, for example, to work out if mode +s is set, we check the field
517 * userrec::modes['s'-65] != 0.
518 * The following RFC characters o, w, s, i have constants defined via an
519 * enum, such as UM_SERVERNOTICE and UM_OPETATOR.
523 /** What snomasks are set on this user.
524 * This functions the same as the above modes.
528 /** Channels this user is on, and the permissions they have there
532 /** The server the user is connected to.
536 /** The user's away message.
537 * If this string is empty, the user is not marked as away.
539 char awaymsg[MAXAWAY+1];
541 /** Number of lines the user can place into the buffer
542 * (up to the global NetBufferSize bytes) before they
543 * are disconnected for excess flood
547 /** Timestamp of current time + connection class timeout.
548 * This user must send USER/NICK before this timestamp is
549 * reached or they will be disconnected.
553 /** The oper type they logged in as, if they are an oper.
554 * This is used to check permissions in operclasses, so that
555 * we can say 'yay' or 'nay' to any commands they issue.
556 * The value of this is the value of a valid 'type name=' tag.
560 /** True when DNS lookups are completed.
561 * The UserResolver classes res_forward and res_reverse will
562 * set this value once they complete.
566 /** Number of seconds between PINGs for this user (set from <connect:allow> tag
568 unsigned int pingmax;
570 /** Password specified by the user when they registered.
571 * This is stored even if the <connect> block doesnt need a password, so that
572 * modules may check it.
576 /** User's receive queue.
577 * Lines from the IRCd awaiting processing are stored here.
578 * Upgraded april 2005, old system a bit hairy.
582 /** User's send queue.
583 * Lines waiting to be sent are stored here until their buffer is flushed.
587 /** Flood counters - lines received
591 /** Flood counters - time lines_in is due to be reset
595 /** Flood counters - Highest value lines_in may reach before the user gets disconnected
599 /** If this is set to true, then all read operations for the user
600 * are dropped into the bit-bucket.
601 * This is used by the global CullList, but please note that setting this value
602 * alone will NOT cause the user to quit. This means it can be used seperately,
603 * for example by shun modules etc.
607 /** IPV4 or IPV6 ip address. Use SetSockAddr to set this and GetProtocolFamily/
608 * GetIPString/GetPort to obtain its values.
612 /** Initialize the clients sockaddr
613 * @param protocol_family The protocol family of the IP address, AF_INET or AF_INET6
614 * @param ip A human-readable IP address for this user matching the protcol_family
615 * @param port The port number of this user or zero for a remote user
617 void SetSockAddr(int protocol_family, const char* ip, int port);
619 /** Get port number from sockaddr
620 * @return The port number of this user.
624 /** Get protocol family from sockaddr
625 * @return The protocol family of this user, either AF_INET or AF_INET6
627 int GetProtocolFamily();
629 /** Get IP string from sockaddr, using static internal buffer
630 * @return The IP string
632 const char* GetIPString();
634 /** Get IP string from sockaddr, using caller-specified buffer
635 * @param buf A buffer to use
636 * @return The IP string
638 const char* GetIPString(char* buf);
640 /* Write error string
642 std::string WriteError;
644 /** Maximum size this user's sendq can become.
645 * Copied from the connect class on connect.
649 /** Maximum size this user's recvq can become.
650 * Copied from the connect class on connect.
654 /** This is true if the user matched an exception when they connected to the ircd.
655 * It isnt valid after this point, and you should not attempt to do anything with it
656 * after this point, because the eline might be removed at a later time, and/or no
657 * longer be applicable to this user. It is only used to save doing the eline lookup
658 * twice (instead we do it once and set this value).
662 /** Default constructor
663 * @throw Nothing at present
664 * @param Instance Creator instance
665 * @param uid User UUID, or empty to allocate one automatically
667 userrec(InspIRCd* Instance, const std::string &uid = "");
669 /** Returns the full displayed host of the user
670 * This member function returns the hostname of the user as seen by other users
671 * on the server, in nick!ident&at;host form.
672 * @return The full masked host of the user
674 virtual char* GetFullHost();
676 /** Returns the full real host of the user
677 * This member function returns the hostname of the user as seen by other users
678 * on the server, in nick!ident&at;host form. If any form of hostname cloaking is in operation,
679 * e.g. through a module, then this method will ignore it and return the true hostname.
680 * @return The full real host of the user
682 virtual char* GetFullRealHost();
684 /** This clears any cached results that are used for GetFullRealHost() etc.
685 * The results of these calls are cached as generating them can be generally expensive.
687 void InvalidateCache();
689 /** Create a displayable mode string for this users snomasks
690 * @return The notice mask character sequence
692 const char* FormatNoticeMasks();
694 /** Process a snomask modifier string, e.g. +abc-de
695 * @param sm A sequence of notice mask characters
696 * @return The cleaned mode sequence which can be output,
697 * e.g. in the above example if masks c and e are not
698 * valid, this function will return +ab-d
700 std::string ProcessNoticeMasks(const char *sm);
702 /** Returns true if a notice mask is set
703 * @param sm A notice mask character to check
704 * @return True if the notice mask is set
706 bool IsNoticeMaskSet(unsigned char sm);
708 /** Changed a specific notice mask value
709 * @param sm The server notice mask to change
710 * @param value An on/off value for this mask
712 void SetNoticeMask(unsigned char sm, bool value);
714 /** Create a displayable mode string for this users umodes
715 * @param The mode string
717 const char* FormatModes();
719 /** Returns true if a specific mode is set
720 * @param m The user mode
721 * @return True if the mode is set
723 bool IsModeSet(unsigned char m);
725 /** Set a specific usermode to on or off
726 * @param m The user mode
727 * @param value On or off setting of the mode
729 void SetMode(unsigned char m, bool value);
731 /** Returns true if a user is invited to a channel.
732 * @param channel A channel name to look up
733 * @return True if the user is invited to the given channel
735 virtual bool IsInvited(const irc::string &channel);
737 /** Adds a channel to a users invite list (invites them to a channel)
738 * @param channel A channel name to add
740 virtual void InviteTo(const irc::string &channel);
742 /** Removes a channel from a users invite list.
743 * This member function is called on successfully joining an invite only channel
744 * to which the user has previously been invited, to clear the invitation.
745 * @param channel The channel to remove the invite to
747 virtual void RemoveInvite(const irc::string &channel);
749 /** Returns true or false for if a user can execute a privilaged oper command.
750 * This is done by looking up their oper type from userrec::oper, then referencing
751 * this to their oper classes and checking the commands they can execute.
752 * @param command A command (should be all CAPS)
753 * @return True if this user can execute the command
755 bool HasPermission(const std::string &command);
757 /** Calls read() to read some data for this user using their fd.
758 * @param buffer The buffer to read into
759 * @param size The size of data to read
760 * @return The number of bytes read, or -1 if an error occured.
762 int ReadData(void* buffer, size_t size);
764 /** This method adds data to the read buffer of the user.
765 * The buffer can grow to any size within limits of the available memory,
766 * managed by the size of a std::string, however if any individual line in
767 * the buffer grows over 600 bytes in length (which is 88 chars over the
768 * RFC-specified limit per line) then the method will return false and the
769 * text will not be inserted.
770 * @param a The string to add to the users read buffer
771 * @return True if the string was successfully added to the read buffer
773 bool AddBuffer(std::string a);
775 /** This method returns true if the buffer contains at least one carriage return
776 * character (e.g. one complete line may be read)
777 * @return True if there is at least one complete line in the users buffer
779 bool BufferIsReady();
781 /** This function clears the entire buffer by setting it to an empty string.
785 /** This method returns the first available string at the tail end of the buffer
786 * and advances the tail end of the buffer past the string. This means it is
787 * a one way operation in a similar way to strtok(), and multiple calls return
788 * multiple lines if they are available. The results of this function if there
789 * are no lines to be read are unknown, always use BufferIsReady() to check if
790 * it is ok to read the buffer before calling GetBuffer().
791 * @return The string at the tail end of this users buffer
793 std::string GetBuffer();
795 /** Sets the write error for a connection. This is done because the actual disconnect
796 * of a client may occur at an inopportune time such as half way through /LIST output.
797 * The WriteErrors of clients are checked at a more ideal time (in the mainloop) and
798 * errored clients purged.
799 * @param error The error string to set.
801 void SetWriteError(const std::string &error);
803 /** Returns the write error which last occured on this connection or an empty string
805 * @return The error string which has occured for this user
807 const char* GetWriteError();
809 /** Adds to the user's write buffer.
810 * You may add any amount of text up to this users sendq value, if you exceed the
811 * sendq value, SetWriteError() will be called to set the users error string to
812 * "SendQ exceeded", and further buffer adds will be dropped.
813 * @param data The data to add to the write buffer
815 void AddWriteBuf(const std::string &data);
817 /** Flushes as much of the user's buffer to the file descriptor as possible.
818 * This function may not always flush the entire buffer, rather instead as much of it
819 * as it possibly can. If the send() call fails to send the entire buffer, the buffer
820 * position is advanced forwards and the rest of the data sent at the next call to
823 void FlushWriteBuf();
825 /** Returns the list of channels this user has been invited to but has not yet joined.
826 * @return A list of channels the user is invited to
828 InvitedList* GetInviteList();
830 /** Creates a wildcard host.
831 * Takes a buffer to use and fills the given buffer with the host in the format *!*@hostname
832 * @return The wildcarded hostname in *!*@host form
834 char* MakeWildHost();
836 /** Creates a usermask with real host.
837 * Takes a buffer to use and fills the given buffer with the hostmask in the format user@host
838 * @return the usermask in the format user@host
842 /** Creates a usermask with real ip.
843 * Takes a buffer to use and fills the given buffer with the ipmask in the format user@ip
844 * @return the usermask in the format user@ip
848 /** Shuts down and closes the user's socket
849 * This will not cause the user to be deleted. Use InspIRCd::QuitUser for this,
850 * which will call CloseSocket() for you.
854 /** Disconnect a user gracefully
855 * @param user The user to remove
856 * @param r The quit reason to show to normal users
857 * @param oreason The quit reason to show to opers
858 * @return Although this function has no return type, on exit the user provided will no longer exist.
860 static void QuitUser(InspIRCd* Instance, userrec *user, const std::string &r, const char* oreason = "");
862 /** Add the user to WHOWAS system
866 /** Oper up the user using the given opertype.
867 * This will also give the +o usermode.
868 * @param opertype The oper type to oper as
870 void Oper(const std::string &opertype);
872 /** Call this method to find the matching <connect> for a user, and to check them against it.
874 void CheckClass(const std::string &explicit_class = "");
876 /** Use this method to fully connect a user.
877 * This will send the message of the day, check G/K/E lines, etc.
881 /** Change this users hash key to a new string.
882 * You should not call this function directly. It is used by the core
883 * to update the users hash entry on a nickchange.
884 * @param New new user_hash key
885 * @return Pointer to userrec in hash (usually 'this')
887 userrec* UpdateNickHash(const char* New);
889 /** Force a nickname change.
890 * If the nickname change fails (for example, because the nick in question
891 * already exists) this function will return false, and you must then either
892 * output an error message, or quit the user for nickname collision.
893 * @param newnick The nickname to change to
894 * @return True if the nickchange was successful.
896 bool ForceNickChange(const char* newnick);
898 /** Add a client to the system.
899 * This will create a new userrec, insert it into the user_hash,
900 * initialize it as not yet registered, and add it to the socket engine.
901 * @param Instance a pointer to the server instance
902 * @param socket The socket id (file descriptor) this user is on
903 * @param port The port number this user connected on
904 * @param iscached This variable is reserved for future use
905 * @param ip The IP address of the user
906 * @return This function has no return value, but a call to AddClient may remove the user.
908 static void AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip);
911 * This will clear the +o usermode and unset the user's oper type
915 /** Return the number of global clones of this user
916 * @return The global clone count of this user
918 unsigned long GlobalCloneCount();
920 /** Return the number of local clones of this user
921 * @return The local clone count of this user
923 unsigned long LocalCloneCount();
925 /** Remove all clone counts from the user, you should
926 * use this if you change the user's IP address in
927 * userrec::ip after they have registered.
929 void RemoveCloneCounts();
931 /** Write text to this user, appending CR/LF.
932 * @param text A std::string to send to the user
934 void Write(std::string text);
936 /** Write text to this user, appending CR/LF.
937 * @param text The format string for text to send to the user
938 * @param ... POD-type format arguments
940 void Write(const char *text, ...);
942 /** Write text to this user, appending CR/LF and prepending :server.name
943 * @param text A std::string to send to the user
945 void WriteServ(const std::string& text);
947 /** Write text to this user, appending CR/LF and prepending :server.name
948 * @param text The format string for text to send to the user
949 * @param ... POD-type format arguments
951 void WriteServ(const char* text, ...);
953 /** Write text to this user, appending CR/LF and prepending :nick!user@host of the user provided in the first parameter.
954 * @param user The user to prepend the :nick!user@host of
955 * @param text A std::string to send to the user
957 void WriteFrom(userrec *user, const std::string &text);
959 /** Write text to this user, appending CR/LF and prepending :nick!user@host of the user provided in the first parameter.
960 * @param user The user to prepend the :nick!user@host of
961 * @param text The format string for text to send to the user
962 * @param ... POD-type format arguments
964 void WriteFrom(userrec *user, const char* text, ...);
966 /** Write text to the user provided in the first parameter, appending CR/LF, and prepending THIS user's :nick!user@host.
967 * @param dest The user to route the message to
968 * @param text A std::string to send to the user
970 void WriteTo(userrec *dest, const std::string &data);
972 /** Write text to the user provided in the first parameter, appending CR/LF, and prepending THIS user's :nick!user@host.
973 * @param dest The user to route the message to
974 * @param text The format string for text to send to the user
975 * @param ... POD-type format arguments
977 void WriteTo(userrec *dest, const char *data, ...);
979 /** Write to all users that can see this user (including this user in the list), appending CR/LF
980 * @param text A std::string to send to the users
982 void WriteCommon(const std::string &text);
984 /** Write to all users that can see this user (including this user in the list), appending CR/LF
985 * @param text The format string for text to send to the users
986 * @param ... POD-type format arguments
988 void WriteCommon(const char* text, ...);
990 /** Write to all users that can see this user (not including this user in the list), appending CR/LF
991 * @param text The format string for text to send to the users
992 * @param ... POD-type format arguments
994 void WriteCommonExcept(const char* text, ...);
996 /** Write to all users that can see this user (not including this user in the list), appending CR/LF
997 * @param text A std::string to send to the users
999 void WriteCommonExcept(const std::string &text);
1001 /** Write a quit message to all common users, as in userrec::WriteCommonExcept but with a specific
1002 * quit message for opers only.
1003 * @param normal_text Normal user quit message
1004 * @param oper_text Oper only quit message
1006 void WriteCommonQuit(const std::string &normal_text, const std::string &oper_text);
1008 /** Write a WALLOPS message from this user to all local opers.
1009 * If this user is not opered, the function will return without doing anything.
1010 * @param text The format string to send in the WALLOPS message
1011 * @param ... Format arguments
1013 void WriteWallOps(const char* text, ...);
1015 /** Write a WALLOPS message from this user to all local opers.
1016 * If this user is not opered, the function will return without doing anything.
1017 * @param text The text to send in the WALLOPS message
1019 void WriteWallOps(const std::string &text);
1021 /** Return true if the user shares at least one channel with another user
1022 * @param other The other user to compare the channel list against
1023 * @return True if the given user shares at least one channel with this user
1025 bool SharesChannelWith(userrec *other);
1027 /** Change the displayed host of a user.
1028 * ALWAYS use this function, rather than writing userrec::dhost directly,
1029 * as this triggers module events allowing the change to be syncronized to
1030 * remote servers. This will also emulate a QUIT and rejoin (where configured)
1031 * before setting their host field.
1032 * @param host The new hostname to set
1033 * @return True if the change succeeded, false if it didn't
1035 bool ChangeDisplayedHost(const char* host);
1037 /** Change the ident (username) of a user.
1038 * ALWAYS use this function, rather than writing userrec::ident directly,
1039 * as this correctly causes the user to seem to quit (where configured)
1040 * before setting their ident field.
1041 * @param host The new ident to set
1042 * @return True if the change succeeded, false if it didn't
1044 bool ChangeIdent(const char* newident);
1046 /** Change a users realname field.
1047 * ALWAYS use this function, rather than writing userrec::fullname directly,
1048 * as this triggers module events allowing the change to be syncronized to
1050 * @param gecos The user's new realname
1051 * @return True if the change succeeded, false if otherwise
1053 bool ChangeName(const char* gecos);
1055 /** Send a command to all local users from this user
1056 * The command given must be able to send text with the
1057 * first parameter as a servermask (e.g. $*), so basically
1058 * you should use PRIVMSG or NOTICE.
1059 * @param command the command to send
1060 * @param text The text format string to send
1061 * @param ... Format arguments
1063 void SendAll(const char* command, char* text, ...);
1065 /** Compile a channel list for this user, and send it to the user 'source'
1066 * Used internally by WHOIS
1067 * @param The user to send the channel list to if it is not too long
1068 * @return This user's channel list
1070 std::string ChannelList(userrec* source);
1072 /** Split the channel list in cl which came from dest, and spool it to this user
1073 * Used internally by WHOIS
1074 * @param dest The user the original channel list came from
1075 * @param cl The channel list as a string obtained from userrec::ChannelList()
1077 void SplitChanList(userrec* dest, const std::string &cl);
1079 /** Remove this user from all channels they are on, and delete any that are now empty.
1080 * This is used by QUIT, and will not send part messages!
1082 void PurgeEmptyChannels();
1084 /** Get the connect class which matches this user's host or IP address
1085 * @param explicit_name Set this string to tie the user to a specific class name
1086 * @return A reference to this user's connect class
1088 ConnectClass* GetClass(const std::string &explicit_name = "");
1090 /** Show the message of the day to this user
1094 /** Show the server RULES file to this user
1098 /** Set oper-specific quit message shown to opers only when the user quits
1099 * (overrides any sent by QuitUser)
1101 void SetOperQuit(const std::string &oquit);
1103 /** Get oper-specific quit message shown only to opers when the user quits.
1104 * (overrides any sent by QuitUser)
1106 const char* GetOperQuit();
1108 /** Handle socket event.
1109 * From EventHandler class.
1110 * @param et Event type
1111 * @param errornum Error number for EVENT_ERROR events
1113 void HandleEvent(EventType et, int errornum = 0);
1115 /** Default destructor
1120 /* Configuration callbacks */