1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
17 /** Used to indicate command success codes
21 CMD_FAILURE = 0, /* Command exists, but failed */
22 CMD_SUCCESS = 1, /* Command exists, and succeeded */
23 CMD_INVALID = 2 /* Command doesnt exist at all! */
24 #define CMD_LOCALONLY CMD_FAILURE
27 /** Translation types for translation of parameters to UIDs.
28 * This allows the core commands to not have to be aware of how UIDs
29 * work (making it still possible to write other linking modules which
30 * do not use UID (but why would you want to?)
34 TR_END, /* End of known parameters, everything after this is TR_TEXT */
35 TR_TEXT, /* Raw text, leave as-is */
36 TR_NICK, /* Nickname, translate to UUID for server->server */
37 TR_CUSTOM /* Custom translation handled by EncodeParameter/DecodeParameter */
40 /** Routing types for a command. Any command which is created defaults
41 * to having its command broadcasted on success. This behaviour may be
42 * overridden to one of the route types shown below (see the #defines
43 * below for more information on each one's behaviour)
54 /** Defines routing information for a command, containing a destination
55 * server id (if applicable) and a routing type from the enum above.
57 struct RouteDescriptor
59 /** Routing type from the enum above
62 /** For unicast, the destination server's name
64 const std::string serverdest;
66 /** Create a RouteDescriptor
68 RouteDescriptor(RouteType t, const std::string &d)
69 : type(t), serverdest(d) { }
72 /** Do not route this command */
73 #define ROUTE_LOCALONLY (RouteDescriptor(ROUTE_TYPE_LOCALONLY, ""))
74 /** Route this command to all servers, fail if not understood */
75 #define ROUTE_BROADCAST (RouteDescriptor(ROUTE_TYPE_BROADCAST, ""))
76 /** Route this command to a single server (do nothing if own server name specified) */
77 #define ROUTE_UNICAST(x) (RouteDescriptor(ROUTE_TYPE_UNICAST, x))
78 /** Route this command to all servers wrapped via ENCAP, so ignored if not understood */
79 #define ROUTE_OPT_BCAST (RouteDescriptor(ROUTE_TYPE_OPT_BCAST, ""))
80 /** Route this command to a single server wrapped via ENCAP, so ignored if not understood */
81 #define ROUTE_OPT_UCAST(x) (RouteDescriptor(ROUTE_TYPE_OPT_UCAST, x))
83 /** A structure that defines a command. Every command available
84 * in InspIRCd must be defined as derived from Command.
86 class CoreExport Command : public Extensible
89 /** Owner/Creator object
91 InspIRCd* ServerInstance;
97 /** Creator module, NULL for core commands */
100 /** User flags needed to execute the command or 0
104 /** Minimum number of parameters command takes
106 const unsigned int min_params;
108 /** Maximum number of parameters command takes.
109 * This is used by the command parser to join extra parameters into one last param.
110 * If not set, no munging is done to this command.
112 const unsigned int max_params;
116 long double use_count;
120 long double total_bytes;
122 /** True if the command is disabled to non-opers
126 /** True if the command can be issued before registering
128 bool works_before_reg;
130 /** Syntax string for the command, displayed if non-empty string.
131 * This takes place of the text in the 'not enough parameters' numeric.
135 /** Translation type list for possible parameters, used to tokenize
136 * parameters into UIDs and SIDs etc.
138 std::vector<TranslateType> translation;
140 /** How many seconds worth of penalty does this command have?
144 /** Create a new command.
145 * @param Instance Pointer to creator class
146 * @param cmd Command name. This must be UPPER CASE.
147 * @param flags User mode required to execute the command. May ONLY be one mode - it's a string to give warnings if people mix params up.
148 * For oper only commands, set this to 'o', otherwise use 0.
149 * @param minpara Minimum parameters required for the command.
150 * @param maxpara Maximum number of parameters this command may have - extra parameters will be tossed into one last space-seperated param.
151 * @param before_reg If this is set to true, the command will
152 * be allowed before the user is 'registered' (has sent USER,
153 * NICK, optionally PASS, and been resolved).
155 Command(InspIRCd* Instance, Module* me, const std::string &cmd, const char *flags, int minpara, bool before_reg = false, int penalty = 1) :
156 ServerInstance(Instance), command(cmd), creator(me), flags_needed(flags ? *flags : 0),
157 min_params(minpara), max_params(0), disabled(false), works_before_reg(before_reg), Penalty(penalty)
163 Command(InspIRCd* Instance, Module* me, const std::string &cmd, const char *flags, int minpara, int maxpara, bool before_reg = false, int penalty = 1) :
164 ServerInstance(Instance), command(cmd), creator(me), flags_needed(flags ? *flags : 0),
165 min_params(minpara), max_params(maxpara), disabled(false), works_before_reg(before_reg), Penalty(penalty)
171 /** Handle the command from a user.
172 * @param parameters The parameters for the command.
173 * @param user The user who issued the command.
174 * @return Return CMD_SUCCESS on success, or CMD_FAILURE on failure.
175 * If the command succeeds but should remain local to this server,
176 * return CMD_LOCALONLY.
178 virtual CmdResult Handle(const std::vector<std::string>& parameters, User* user) = 0;
180 virtual RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
182 return ROUTE_BROADCAST;
185 /** Handle an internal request from another command, the core, or a module
187 * @param Zero or more parameters, whos form is specified by the command ID.
188 * @return Return CMD_SUCCESS on success, or CMD_FAILURE on failure.
189 * If the command succeeds but should remain local to this server,
190 * return CMD_LOCALONLY.
192 virtual CmdResult HandleInternal(const unsigned int /* id */, const std::deque<classbase*>& /* params */)
197 /** Handle the command from a server.
198 * Not currently used in this version of InspIRCd.
199 * @param parameters The parameters given
200 * @param servername The server name which issued the command
201 * @return Return CMD_SUCCESS on success, or CMD_FAILURE on failure.
202 * If the command succeeds but should remain local to this server,
203 * return CMD_LOCALONLY.
205 virtual CmdResult HandleServer(const std::vector<std::string>& /* parameters */, const std::string& /* servername */)
210 /** Encode a parameter for server->server transmission.
211 * Used for parameters for which the translation type is TR_CUSTOM.
212 * @param parameter The parameter to encode. Can be modified in place.
213 * @param index The parameter index (0 == first parameter).
215 virtual void EncodeParameter(std::string& parameter, int index)
219 /** Decode a parameter from server->server transmission.
220 * Not currently used in this version of InspIRCd.
221 * Used for parameters for which the translation type is TR_CUSTOM.
222 * @param parameter The parameter to decode. Can be modified in place.
223 * @param index The parameter index (0 == first parameter).
225 virtual void DecodeParameter(std::string& parameter, int index)
229 /** Disable or enable this command.
230 * @param setting True to disable the command.
232 void Disable(bool setting)
237 /** Obtain this command's disable state.
238 * @return true if the command is currently disabled
239 * (disabled commands can be used only by operators)
246 /** @return true if the command works before registration.
248 bool WorksBeforeReg()
250 return works_before_reg;
253 /** Standard constructor gubbins
261 /** A hash of commands used by the core
263 typedef nspace::hash_map<std::string,Command*> Commandtable;
265 /** Shortcut macros for defining translation lists
267 #define TRANSLATE1(x1) translation.push_back(x1);
268 #define TRANSLATE2(x1,x2) translation.push_back(x1);translation.push_back(x2);
269 #define TRANSLATE3(x1,x2,x3) translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);
270 #define TRANSLATE4(x1,x2,x3,x4) translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);
271 #define TRANSLATE5(x1,x2,x3,x4,x5) translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
272 translation.push_back(x5);
273 #define TRANSLATE6(x1,x2,x3,x4,x5,x6) translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
274 translation.push_back(x5);translation.push_back(x6);
275 #define TRANSLATE7(x1,x2,x3,x4,x5,x6,x7) translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
276 translation.push_back(x5);translation.push_back(x6);translation.push_back(x7);
277 #define TRANSLATE8(x1,x2,x3,x4,x5,x6,x7,x8) translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
278 translation.push_back(x5);translation.push_back(x6);translation.push_back(x7);translation.push_back(x8);