1 /* modcmd.h - Generalized module command support
2 * Copyright 2002-2004 srvx Development Team
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version. Important limitations are
8 * listed in the COPYING file that accompanies this software.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, email srvx-maintainers@srvx.net.
19 #if !defined(MODCMDS_H)
31 #define MODCMD_FUNC(NAME) int NAME(struct userNode *user, UNUSED_ARG(struct chanNode *channel), UNUSED_ARG(unsigned int argc), UNUSED_ARG(char **argv), UNUSED_ARG(struct svccmd *cmd))
32 typedef MODCMD_FUNC(modcmd_func_t);
33 #define SVCMSG_HOOK(NAME) int NAME(struct userNode *user, struct userNode *target, char *text, int server_qualified);
34 typedef SVCMSG_HOOK(svcmsg_hook_t);
36 DECLARE_LIST(svccmd_list, struct svccmd*);
37 DECLARE_LIST(module_list, struct module*);
39 #if defined(__GNUC__) && (__GNUC__ < 3)
40 #define reply(FMT...) send_message(user, cmd->parent->bot, FMT)
41 #elif !defined(S_SPLINT_S) /* doesn't recognize C99 variadic macros */
42 #define reply(...) send_message(user, cmd->parent->bot, __VA_ARGS__)
44 #define modcmd_get_handle_info(USER, NAME) smart_get_handle_info(cmd->parent->bot, USER, NAME)
45 #define modcmd_chanmode_announce(CHANGE) mod_chanmode_announce(cmd->parent->bot, channel, CHANGE)
46 #define modcmd_chanmode(ARGV, ARGC, FLAGS) mod_chanmode(cmd->parent->bot, channel, ARGV, ARGC, FLAGS)
48 /* Miscellaneous flags controlling a command */
49 #define MODCMD_DISABLED 0x001
50 #define MODCMD_NO_LOG 0x002
51 #define MODCMD_KEEP_BOUND 0x004
52 #define MODCMD_ACCEPT_CHANNEL 0x008
53 #define MODCMD_ACCEPT_PCHANNEL 0x010
54 #define MODCMD_NO_DEFAULT_BIND 0x020
55 #define MODCMD_LOG_HOSTMASK 0x040
56 #define MODCMD_IGNORE_CSUSPEND 0x080
57 #define MODCMD_NEVER_CSUSPEND 0x100
58 /* Requirement (access control) flags */
59 #define MODCMD_REQUIRE_AUTHED 0x001000
60 #define MODCMD_REQUIRE_CHANNEL 0x002000
61 #define MODCMD_REQUIRE_REGCHAN 0x004000
62 #define MODCMD_REQUIRE_CHANUSER 0x008000
63 #define MODCMD_REQUIRE_JOINABLE 0x010000
64 #define MODCMD_REQUIRE_QUALIFIED 0x020000
65 #define MODCMD_REQUIRE_OPER 0x040000
66 #define MODCMD_REQUIRE_NETWORK_HELPER 0x080000
67 #define MODCMD_REQUIRE_SUPPORT_HELPER 0x100000
68 #define MODCMD_REQUIRE_HELPING 0x200000
69 #define MODCMD_TOY 0x400000
70 #define MODCMD_REQUIRE_STAFF (MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_NETWORK_HELPER|MODCMD_REQUIRE_SUPPORT_HELPER)
72 #define SVCCMD_QUALIFIED 0x000001
73 #define SVCCMD_DEBIT 0x000002
74 #define SVCCMD_NOISY 0x000004
76 /* Modularized commands work like this:
78 * Modules define commands. Services contain "bindings" of those
81 * The module-defined commands (modcmd structs) contain the parameters
82 * fixed by code; for example, assuming a channel was provided, or
83 * that the user has ChanServ access to that channel.
85 * Service command bindings (svccmd structs) define additional access
86 * controls (and a count of how many times the command has been used)
87 * as well as a link to the modcmd providing the function.
89 * Aliased commands are special svccmds that have alias expansion
90 * information in an "extra" pointer. In the future, this may be
91 * moved into the svccmd struct if there are no other commands that
94 * The user must meet all the requirements (in flags, access levels,
95 * etc.) before the command is executed. As an exception, for the
96 * "staff" permission checks (oper/network helper/support helper), any
97 * one is sufficient to permit the command usage.
101 struct userNode *bot;
102 struct module_list modules;
103 struct dict *commands; /* contains struct svccmd* */
104 svcmsg_hook_t *msg_hook;
105 unsigned int privileged : 1;
111 struct service *parent; /* where is this command bound? */
112 struct modcmd *command; /* what is the implementation? */
113 struct string_list alias; /* if it's a complicated binding, what is the expansion? */
114 unsigned int uses; /* how many times was this command used? */
116 unsigned long req_account_flags;
117 unsigned long deny_account_flags;
118 unsigned int min_opserv_level;
119 unsigned int min_channel_access;
120 unsigned int effective_flags;
124 char *name; /* name of module */
125 struct dict *commands; /* contains struct modcmd* */
126 struct log_type *clog; /* where to send logged commands */
127 const char *helpfile_name; /* name to use for helpfile */
128 expand_func_t expand_help; /* expander function for helpfile */
129 struct helpfile *helpfile; /* help file to use in case of syntax error */
134 struct module *parent;
136 struct svccmd *defaults;
137 unsigned int min_argc;
139 unsigned int bind_count;
142 /* Register a command. The varadic argument section consists of a set
143 * of name/value pairs, where the name and value are strings that give
144 * the default parameters for the command. (The "flags" argument
145 * gives the required parameters.) The set is ended by a null name
146 * pointer (without any value argument).
148 struct modcmd *modcmd_register(struct module *module, const char *name, modcmd_func_t func, unsigned int min_argc, unsigned int flags, ...);
150 /* Register a command-providing module. clog is where to log loggable
151 * commands (those without the MODCMD_NO_LOG flag and which succeed).
153 struct module *module_register(const char *name, struct log_type *clog, const char *helpfile_name, expand_func_t expand_help);
154 /* Find a module by name. Returns NULL if no such module is registered. */
155 struct module *module_find(const char *name);
157 /* Register a command-using service. */
158 struct service *service_register(struct userNode *bot, char trigger);
159 /* Find a service by name. */
160 struct service *service_find(const char *name);
161 /* Bind one command to a service. */
162 struct svccmd *service_bind_modcmd(struct service *service, struct modcmd *cmd, const char *name);
164 /* Send help for a command to a user. */
165 int svccmd_send_help(struct userNode *user, struct userNode *bot, struct svccmd *cmd);
166 /* .. and if somebody doesn't have a modcmd handy .. */
167 int svccmd_send_help_2(struct userNode *user, struct service *service, const char *topic);
168 /* Check whether a user may invoke a command or not. If they can,
169 * return non-zero. If they cannot (and noisy is non-zero), tell them
170 * why not and return 0.
172 int svccmd_can_invoke(struct userNode *user, struct userNode *bot, struct svccmd *cmd, struct chanNode *channel, int flags);
173 /* Execute a command. Returns non-zero on success. */
174 int svccmd_invoke_argv(struct userNode *user, struct service *service, struct chanNode *channel, unsigned int argc, char *argv[], unsigned int server_qualified);
175 /* Get notification when a command is being unbound. This lets
176 * services which cache svccmd references remove them.
178 typedef void (*svccmd_unbind_func_t)(struct svccmd *target);
179 void reg_svccmd_unbind_func(svccmd_unbind_func_t handler);
181 /* Initialize the module command subsystem. */
182 void modcmd_init(void);
183 /* Finalize the command mappings, read aliases, etc. Do this after
184 * all other modules have registered their commands.
186 void modcmd_finalize(void);
188 #endif /* !defined(MODCMDS_H) */