src/modcmd.c

   1 /* modcmd.c - Generalized module command support
   2  * Copyright 2002-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * x3 is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "../ChangeLog"
  22 #include "chanserv.h"
  23 #include "conf.h"
  24 #include "modcmd.h"
  25 #include "opserv.h"
  26 #include "saxdb.h"
  27 #include "timeq.h"
  28
  29 struct pending_template {
  30     struct svccmd *cmd;
  31     char *base;
  32     struct pending_template *next;
  33 };
  34
  35 extern unsigned long god_timeout;
  36 static struct dict *modules;
  37 static struct dict *services;
  38 static struct pending_template *pending_templates;
  39 static struct module *modcmd_module;
  40 static struct modcmd *bind_command, *help_command, *version_command;
  41 static const struct message_entry msgtab[] = {
  42     { "MCMSG_BARE_FLAG", "Flag %.*s must be preceded by a + or -." },
  43     { "MCMSG_UNKNOWN_FLAG", "Unknown module flag %.*s." },
  44     { "MCMSG_BAD_OPSERV_LEVEL", "Invalid $O access level %s." },
  45     { "MCMSG_BAD_CHANSERV_LEVEL", "Invalid $C access level %s." },
  46     { "MCMSG_LEVEL_TOO_LOW", "You cannot set the access requirements for %s (your level is too low.)" },
  47     { "MCMSG_LEVEL_TOO_HIGH", "You cannot set the access requirements to %s (that is too high)." },
  48     { "MCMSG_BAD_OPTION", "Unknown option %s." },
  49     { "MCMSG_MUST_QUALIFY", "You $bMUST$b \"/msg %s@$s %s\" (not just /msg %s)." },
  50     { "MCMSG_ACCOUNT_SUSPENDED", "Your account has been suspended." },
  51     { "MCMSG_CHAN_NOT_REGISTERED", "%s has not been registered with $C." },
  52     { "MCMSG_CHAN_SUSPENDED", "$b$C$b access to $b%s$b has been temporarily suspended (%s)." },
  53     { "MCMSG_NO_CHANNEL_ACCESS", "You lack access to %s." },
  54     { "MCMSG_LOW_CHANNEL_ACCESS", "You lack sufficient access in %s to use this command." },
  55     { "MCMSG_REQUIRES_JOINABLE", "You must be in %s (or on its userlist) to use this command." },
  56     { "MCMSG_MUST_BE_HELPING", "You must have security override (helping mode) on to use this command." },
  57     { "MCMSG_MISSING_COMMAND", "You must specify a command as well as a channel." },
  58     { "MCMSG_NO_CHANNEL_BEFORE", "You may not give a channel name before this command." },
  59     { "MCMSG_NO_PLUS_CHANNEL", "You may not use a +channel with this command." },
  60     { "MCMSG_COMMAND_ALIASES", "%s is an alias for: %s" },
  61     { "MCMSG_HELP_COMMAND_ALIAS", "$uAlias for:$u %s" },
  62     { "MCMSG_HELP_COMMAND_HEADER", "Command help for: $b%s$b" },
  63     { "MCMSG_HELP_COMMAND_UNKNOWN", "No help available for that command." },
  64     { "MCMSG_HELP_TOPIC_HEADER",   "Help topic: $b%s$b" },
  65     { "MCMSG_HELP_DIVIDER", "=---------------------------------------=" },
  66     { "MCMSG_HELP_FOOTER",  "=------------- End of Help -------------=" },
  67     { "MCMSG_COMMAND_BINDING", "%s is a binding of: %s" },
  68     { "MCMSG_ALIAS_ERROR", "Error in alias expansion for %s; check the error log for details." },
  69     { "MCMSG_INTERNAL_COMMAND", "$b%s$b is an internal command and cannot be called directly; please check command bindings." },
  70     { "MCMSG_UNKNOWN_MODULE", "Unknown module %s." },
  71     { "MCMSG_UNKNOWN_SERVICE", "Unknown service %s." },
  72     { "MCMSG_ALREADY_BOUND", "%s already has a command bound as %s." },
  73     { "MCMSG_UNKNOWN_COMMAND_2", "Unknown command name %s (relative to service %s)." },
  74     { "MCMSG_COMMAND_MODIFIED", "Option $b%s$b for $b%s$b has been set." },
  75     { "MCMSG_INSPECTION_REFUSED", "You do not have access to inspect command %s." },
  76     { "MCMSG_CANNOT_DOUBLE_ALIAS", "You cannot bind to a complex (argument-carrying) bind." },
  77     { "MCMSG_BAD_ALIAS_ARGUMENT", "Invalid alias argument $b%s$b." },
  78     { "MCMSG_COMMAND_BOUND", "New command %s bound to %s." },
  79     { "MCMSG_MODULE_BOUND", "Bound %d commands from %s to %s." },
  80     { "MCMSG_NO_COMMAND_BOUND", "%s has nothing bound as command %s." },
  81     { "MCMSG_UNBIND_PROHIBITED", "It wouldn't be very much fun to unbind the last %s command, now would it?" },
  82     { "MCMSG_COMMAND_UNBOUND", "Unbound command %s from %s." },
  83     { "MCMSG_HELPFILE_UNBOUND", "Since that was the last command from module %s on the service, the helpfile for %s was removed." },
  84     { "MCMSG_NO_HELPFILE", "Module %s does not have a help file." },
  85     { "MCMSG_HELPFILE_ERROR", "Syntax error reading %s; help contents not changed." },
  86     { "MCMSG_HELPFILE_READ", "Read %s help database in "FMT_TIME_T".%03lu seconds." },
  87     { "MCMSG_COMMAND_TIME", "Command $b%s$b finished in "FMT_TIME_T".%06lu seconds." },
  88     { "MCMSG_NEED_OPSERV_LEVEL", "You must have $O access of at least $b%u$b." },
  89     { "MCMSG_NEED_CHANSERV_LEVEL", "You must have $C access of at least $b%u$b in the channel." },
  90     { "MCMSG_NEED_ACCOUNT_FLAGS", "You must have account flags $b%s$b." },
  91     { "MCMSG_NEED_NOTHING", "Anyone may use the $b%s$b command." },
  92     { "MCMSG_NEED_STAFF_ACCESS", "You must be network staff." },
  93     { "MCMSG_NEED_STAFF_OPER", "You must be an IRC operator." },
  94     { "MCMSG_NEED_STAFF_NETHELPER", "You must be a network helper." },
  95     { "MCMSG_NEED_STAFF_NETHELPER_OR_OPER", "You must be a network helper or IRC operator." },
  96     { "MCMSG_NEED_STAFF_SHELPER", "You must be a support helper." },
  97     { "MCMSG_NEED_STAFF_SHELPER_OR_OPER", "You must be a support helper or IRC operator." },
  98     { "MCMSG_NEED_STAFF_HELPER", "You must be a network or support helper." },
  99     { "MCMSG_NEED_JOINABLE", "The channel must be open or you must be in the channel or on its userlist." },
 100     { "MCMSG_NEED_CHANUSER_CSUSPENDABLE", "You must be on the channel's userlist, and the channel can be suspended." },
 101     { "MCMSG_NEED_CHANUSER", "You must be on the channel's userlist." },
 102     { "MCMSG_NEED_REGCHAN", "You must specify a channel registered with $C." },
 103     { "MCMSG_NEED_CHANNEL", "You must specify a channel that exists." },
 104     { "MCMSG_NEED_AUTHED", "You must be authenticated with $N." },
 105     { "MCMSG_IS_TOY", "$b%s$b is a toy command." },
 106     { "MCMSG_END_REQUIREMENTS", "End of requirements for $b%s$b." },
 107     { "MCMSG_ALREADY_HELPING", "You already have security override enabled." },
 108     { "MCMSG_ALREADY_NOT_HELPING", "You already have security override disabled." },
 109     { "MCMSG_NOW_HELPING", "Security override has been enabled." },
 110     { "MCMSG_NOW_NOT_HELPING", "Security override has been disabled." },
 111     { "MCMSG_JOINER_CHOICES", "Subcommands of %s: %s" },
 112     { "MCMSG_MODULE_INFO", "Commands exported by module $b%s$b:" },
 113     { "MCMSG_SERVICE_INFO", "Commands bound to service $b%s$b:" },
 114     { "MCMSG_TOYS_DISABLED", "Toys are disabled in %s." },
 115     { "MCMSG_PUBLIC_DENY", "Public commands in $b%s$b are restricted." },
 116     { "MCMSG_HELPFILE_SEQUENCE", "Help priority %d: %s" },
 117     { "MCMSG_HELPFILE_SEQUENCE_SET", "Set helpfile priority sequence for %s." },
 118     { "MCMSG_BAD_SERVICE_NICK", "$b%s$b is an invalid nickname." },
 119     { "MCMSG_ALREADY_SERVICE", "$b%s$b is already a service." },
 120     { "MCMSG_NEW_SERVICE", "Added new service bot $b%s$b." },
 121     { "MCMSG_SERVICE_RENAMED", "Service renamed to $b%s$b." },
 122     { "MCMSG_NO_TRIGGER", "$b%s$b does not have an in-channel trigger." },
 123     { "MCMSG_REMOVED_TRIGGER", "Removed trigger from $b%s$b." },
 124     { "MCMSG_DUPLICATE_TRIGGER", "$b%s$b already uses trigger $b%c$b." },
 125     { "MCMSG_CURRENT_TRIGGER", "Trigger for $b%s$b is $b%c$b." },
 126     { "MCMSG_NEW_TRIGGER", "Changed trigger for $b%s$b to $b%c$b." },
 127     { "MCMSG_SERVICE_PRIVILEGED", "Service $b%s$b privileged: $b%s$b." },
 128     { "MCMSG_SERVICE_REMOVED", "Service $b%s$b has been deleted." },
 129     { "MCMSG_FILE_NOT_OPENED", "Unable to open file $b%s$b for writing." },
 130     { "MCMSG_MESSAGES_DUMPED", "Messages written to $b%s$b." },
 131     { "MCMSG_MESSAGE_DUMP_FAILED", "Message dump failed: %s." },
 132     { "MCMSG_COMMAND_FLAGS", "Command flags are %s (inferred: %s)." },
 133     { "MCMSG_COMMAND_ACCOUNT_FLAGS", "Requires account flags +%s, prohibits account flags +%s." },
 134     { "MCMSG_COMMAND_ACCESS_LEVEL", "Requires channel access %d and $O access %d." },
 135     { "MCMSG_COMMAND_USES", "%s has been used %d times." },
 136     { "MCMSG_GOD_EXPIRED", "Security override expired." },
 137     { NULL, NULL }
 138 };
 139 struct userData *_GetChannelUser(struct chanData *channel, struct handle_info *handle, int override, int allow_suspended);
 140
 141 #define ACTION_ALLOW     1
 142 #define ACTION_OVERRIDE  2
 143 #define ACTION_NOCHANNEL 4
 144 #define ACTION_STAFF     8
 145
 146 #define RESOLVE_DEPTH    4
 147
 148 static struct modcmd_flag {
 149     const char *name;
 150     unsigned int flag;
 151 } flags[] = {
 152     { "acceptchan", MODCMD_ACCEPT_CHANNEL },
 153     { "acceptpluschan", MODCMD_ACCEPT_PCHANNEL },
 154     { "authed", MODCMD_REQUIRE_AUTHED },
 155     { "channel", MODCMD_REQUIRE_CHANNEL },
 156     { "chanuser", MODCMD_REQUIRE_CHANUSER },
 157     { "disabled", MODCMD_DISABLED },
 158     { "helping", MODCMD_REQUIRE_HELPING },
 159     { "ignore_csuspend", MODCMD_IGNORE_CSUSPEND },
 160     { "joinable", MODCMD_REQUIRE_JOINABLE },
 161     { "keepbound", MODCMD_KEEP_BOUND },
 162     { "loghostmask", MODCMD_LOG_HOSTMASK },
 163     { "networkhelper", MODCMD_REQUIRE_NETWORK_HELPER },
 164     { "never_csuspend", MODCMD_NEVER_CSUSPEND },
 165     { "nolog", MODCMD_NO_LOG },
 166     { "oper", MODCMD_REQUIRE_OPER },
 167     { "qualified", MODCMD_REQUIRE_QUALIFIED },
 168     { "regchan", MODCMD_REQUIRE_REGCHAN },
 169     { "supporthelper", MODCMD_REQUIRE_SUPPORT_HELPER },
 170     { "toy", MODCMD_TOY },
 171     { NULL, 0 }
 172 };
 173
 174 static int
 175 flags_bsearch(const void *a, const void *b) {
 176     const char *key = a;
 177     const struct modcmd_flag *flag = b;
 178     return ircncasecmp(key, flag->name, strlen(flag->name));
 179 }
 180
 181 static int
 182 flags_qsort(const void *a, const void *b) {
 183     const struct modcmd_flag *fa = a, *fb = b;
 184     return irccasecmp(fa->name, fb->name);
 185 }
 186
 187 DEFINE_LIST(svccmd_list, struct svccmd*);
 188 DEFINE_LIST(module_list, struct module*);
 189
 190 static void
 191 free_service_command(void *data) {
 192     struct svccmd *svccmd;
 193     unsigned int nn;
 194
 195     svccmd = data;
 196     if (svccmd->alias.used) {
 197         for (nn=0; nn<svccmd->alias.used; ++nn)
 198             free(svccmd->alias.list[nn]);
 199         free(svccmd->alias.list);
 200     }
 201     free(svccmd->name);
 202     free(svccmd);
 203 }
 204
 205 static void
 206 free_service(void *data) {
 207     struct service *service = data;
 208     dict_delete(service->commands);
 209     module_list_clean(&service->modules);
 210     free(service);
 211 }
 212
 213 static void
 214 free_module_command(void *data) {
 215     struct modcmd *modcmd = data;
 216     free_service_command(modcmd->defaults);
 217     free(modcmd->name);
 218     free(modcmd);
 219 }
 220
 221 static void
 222 free_module(void *data) {
 223     struct module *module = data;
 224     dict_delete(module->commands);
 225     close_helpfile(module->helpfile);
 226     free(module->name);
 227     free(module);
 228 }
 229
 230 struct module *
 231 module_register(const char *name, struct log_type *clog, const char *helpfile_name, expand_func_t expand_help) {
 232     struct module *newmod;
 233
 234     newmod = calloc(1, sizeof(*newmod));
 235     newmod->name = strdup(name);
 236     newmod->commands = dict_new();
 237     dict_set_free_data(newmod->commands, free_module_command);
 238     newmod->clog = clog;
 239     newmod->helpfile_name = helpfile_name;
 240     newmod->expand_help = expand_help;
 241     if (newmod->helpfile_name) {
 242         newmod->helpfile = open_helpfile(newmod->helpfile_name, newmod->expand_help);
 243     }
 244     dict_insert(modules, newmod->name, newmod);
 245     return newmod;
 246 }
 247
 248 struct module *
 249 module_find(const char *name) {
 250     return dict_find(modules, name, NULL);
 251 }
 252
 253 static void
 254 add_pending_template(struct svccmd *cmd, const char *target) {
 255     struct pending_template *pending = calloc(1, sizeof(*pending));
 256     pending->cmd = cmd;
 257     pending->base = strdup(target);
 258     pending->next = pending_templates;
 259     pending_templates = pending;
 260 }
 261
 262 struct svccmd *
 263 svccmd_resolve_name(struct svccmd *origin, const char *name) {
 264     char *sep, svcname[MAXLEN];
 265
 266     if ((sep = strchr(name, '.'))) {
 267         memcpy(svcname, name, sep-name);
 268         svcname[sep-name] = 0;
 269         name = sep + 1;
 270         if (svcname[0] == '*') {
 271             struct module *module = module_find(svcname+1);
 272             struct modcmd *cmd = module ? dict_find(module->commands, name, NULL) : NULL;
 273             return cmd ? cmd->defaults : NULL;
 274         } else {
 275             struct service *service = service_find(svcname);
 276             return service ? dict_find(service->commands, name, NULL) : NULL;
 277         }
 278     } else {
 279         if (origin->parent) {
 280             return dict_find(origin->parent->commands, name, NULL);
 281         } else {
 282             struct modcmd *cmd = dict_find(origin->command->parent->commands, name, NULL);
 283             return cmd ? cmd->defaults : NULL;
 284         }
 285     }
 286 }
 287
 288 static void
 289 modcmd_set_effective_flags(struct svccmd *cmd) {
 290     int flags = cmd->flags | cmd->command->flags;
 291     if (cmd->min_opserv_level > 0)
 292         flags |= MODCMD_REQUIRE_OPER;
 293     if (cmd->min_channel_access > 0)
 294         flags |= MODCMD_REQUIRE_CHANUSER;
 295     if (flags & MODCMD_REQUIRE_CHANUSER)
 296         flags |= MODCMD_REQUIRE_REGCHAN;
 297     if (flags & MODCMD_REQUIRE_REGCHAN)
 298         flags |= MODCMD_REQUIRE_CHANNEL;
 299     if (flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))
 300         flags |= MODCMD_REQUIRE_AUTHED;
 301     cmd->effective_flags = flags;
 302 }
 303
 304 static void
 305 svccmd_copy_rules(struct svccmd *dest, struct svccmd *src) {
 306     dest->flags |= src->flags;
 307     dest->req_account_flags |= src->req_account_flags;
 308     dest->deny_account_flags |= src->deny_account_flags;
 309     if (src->min_opserv_level > dest->min_opserv_level)
 310         dest->min_opserv_level = src->min_opserv_level;
 311     if (src->min_channel_access > dest->min_channel_access)
 312         dest->min_channel_access = src->min_channel_access;
 313     modcmd_set_effective_flags(dest);
 314 }
 315
 316 static int
 317 svccmd_configure(struct svccmd *cmd, struct userNode *user, struct userNode *bot, const char *param, const char *value) {
 318     if (!irccasecmp(param, "flags")) {
 319         unsigned int set_flags, rem_flags;
 320         struct modcmd_flag *flag;
 321         int opt, end;
 322
 323         for (set_flags = rem_flags = 0; 1; value += end) {
 324             end = strcspn(value, ",");
 325             if (*value == '+')
 326                 opt = 1;
 327             else if (*value == '-')
 328                 opt = 0;
 329             else {
 330                 if (user)
 331                     send_message(user, bot, "MCMSG_BARE_FLAG", end, value);
 332                 else
 333                     log_module(MAIN_LOG, LOG_ERROR, "Flag %.*s must be preceded by a + or - (for command %s).", end, value, cmd->name);
 334                 return 0;
 335             }
 336             value++;
 337             flag = bsearch(value, flags, ArrayLength(flags)-1, sizeof(flags[0]), flags_bsearch);
 338             if (!flag) {
 339                 if (user)
 340                     send_message(user, bot, "MCMSG_UNKNOWN_FLAG", end, value);
 341                 else
 342                     log_module(MAIN_LOG, LOG_ERROR, "Unknown module flag %.*s (for command %s).", end, value, cmd->name);
 343                 return 0;
 344             }
 345             if (opt)
 346                 set_flags |= flag->flag, rem_flags &= ~flag->flag;
 347             else
 348                 rem_flags |= flag->flag, set_flags &= ~flag->flag;
 349             if (!value[end-1])
 350                 break;
 351         }
 352         cmd->flags = (cmd->flags | set_flags) & ~rem_flags;
 353         return 1;
 354     } else if (!irccasecmp(param, "channel_level") || !irccasecmp(param, "channel_access") || !irccasecmp(param, "access")) {
 355         unsigned short ul;
 356         if (!irccasecmp(value, "none") || !irccasecmp(value, "0")) {
 357             cmd->min_channel_access = 0;
 358             return 1;
 359         } else if ((ul = user_level_from_name(value, UL_OWNER)) > 0) {
 360             cmd->min_channel_access = ul;
 361             return 1;
 362         } else if (user) {
 363             send_message(user, bot, "MCMSG_BAD_CHANSERV_LEVEL", value);
 364             return 0;
 365         } else {
 366             log_module(MAIN_LOG, LOG_ERROR, "Invalid ChanServ access level %s (for command %s).", value, cmd->name);
 367             return 0;
 368         }
 369     } else if (!irccasecmp(param, "oper_level") || !irccasecmp(param, "oper_access") || !irccasecmp(param, "level")) {
 370         unsigned int newval = atoi(value);
 371         if (!isdigit(value[0]) || (newval > 1000)) {
 372             if (user)
 373                 send_message(user, bot, "MCMSG_BAD_OPSERV_LEVEL", value);
 374             else
 375                 log_module(MAIN_LOG, LOG_ERROR, "Invalid OpServ access level %s (for command %s).", value, cmd->name);
 376             return 0;
 377         }
 378         if (user && (!user->handle_info || (cmd->min_opserv_level > user->handle_info->opserv_level))) {
 379             send_message(user, bot, "MCMSG_LEVEL_TOO_LOW", cmd->name);
 380             return 0;
 381         }
 382         if (user && (!user->handle_info || (newval > user->handle_info->opserv_level))) {
 383             send_message(user, bot, "MCMSG_LEVEL_TOO_HIGH", value);
 384             return 0;
 385         }
 386         cmd->min_opserv_level = newval;
 387         return 1;
 388     } else if (!irccasecmp(param, "account_flags")) {
 389         return nickserv_modify_handle_flags(user, bot, value, &cmd->req_account_flags, &cmd->deny_account_flags);
 390     } else {
 391         if (user)
 392             send_message(user, bot, "MCMSG_BAD_OPTION", param);
 393         else
 394             log_module(MAIN_LOG, LOG_ERROR, "Unknown option %s (for command %s).", param, cmd->name);
 395         return 0;
 396     }
 397 }
 398
 399 struct modcmd *
 400 modcmd_register(struct module *module, const char *name, modcmd_func_t func, unsigned int min_argc, unsigned int flags, ...) {
 401     struct modcmd *newcmd;
 402     va_list args;
 403     const char *param, *value;
 404
 405     newcmd = calloc(1, sizeof(*newcmd));
 406     newcmd->name = strdup(name);
 407     newcmd->parent = module;
 408     newcmd->func = func;
 409     newcmd->min_argc = min_argc;
 410     newcmd->flags = flags;
 411     newcmd->defaults = calloc(1, sizeof(*newcmd->defaults));
 412     newcmd->defaults->name = strdup(newcmd->name);
 413     newcmd->defaults->command = newcmd;
 414     dict_insert(module->commands, newcmd->name, newcmd);
 415     if (newcmd->flags & (MODCMD_REQUIRE_REGCHAN|MODCMD_REQUIRE_CHANNEL|MODCMD_REQUIRE_CHANUSER|MODCMD_REQUIRE_JOINABLE)) {
 416         newcmd->defaults->flags |= MODCMD_ACCEPT_CHANNEL;
 417     }
 418     if (newcmd->flags & MODCMD_REQUIRE_STAFF) {
 419         newcmd->defaults->flags |= MODCMD_REQUIRE_AUTHED;
 420     }
 421     va_start(args, flags);
 422     while ((param = va_arg(args, const char*))) {
 423         value = va_arg(args, const char*);
 424         if (!irccasecmp(param, "template")) {
 425             struct svccmd *svccmd = svccmd_resolve_name(newcmd->defaults, value);
 426             if (svccmd) {
 427                 svccmd_copy_rules(newcmd->defaults, svccmd);
 428             } else {
 429                 log_module(MAIN_LOG, LOG_ERROR, "Unable to resolve template name %s for %s.%s.", value, newcmd->parent->name, newcmd->name);
 430             }
 431             add_pending_template(newcmd->defaults, value);
 432         } else {
 433             svccmd_configure(newcmd->defaults, NULL, NULL, param, value);
 434         }
 435     }
 436     modcmd_set_effective_flags(newcmd->defaults);
 437     va_end(args);
 438     return newcmd;
 439 }
 440
 441 /* This is kind of a lame hack, but it is actually simpler than having
 442  * the permission check vary based on the command itself, or having a
 443  * more generic rule system.
 444  */
 445 int
 446 svccmd_can_invoke(struct userNode *user, struct userNode *bot, struct svccmd *cmd, struct chanNode *channel, int options) {
 447     unsigned int uData_checked = 0;
 448     struct userData *uData = NULL;
 449     int rflags = 0, flags = cmd->effective_flags;
 450
 451     if (flags & MODCMD_DISABLED) {
 452         if (options & SVCCMD_NOISY)
 453             send_message(user, bot, "MSG_COMMAND_DISABLED", cmd->name);
 454         return 0;
 455     }
 456     if ((flags & MODCMD_REQUIRE_QUALIFIED) && !(options & SVCCMD_QUALIFIED)) {
 457         if (options & SVCCMD_NOISY)
 458             send_message(user, bot, "MCMSG_MUST_QUALIFY", bot->nick, cmd->name, bot->nick);
 459         return 0;
 460     }
 461     if (flags & MODCMD_REQUIRE_AUTHED) {
 462         if (!user->handle_info) {
 463             if (options & SVCCMD_NOISY)
 464                 send_message(user, bot, "MSG_AUTHENTICATE");
 465             return 0;
 466         }
 467         if (HANDLE_FLAGGED(user->handle_info, SUSPENDED)) {
 468             if (options & SVCCMD_NOISY)
 469                 send_message(user, bot, "MCMSG_ACCOUNT_SUSPENDED");
 470             return 0;
 471         }
 472     }
 473     if (channel || (options & SVCCMD_NOISY)) {
 474         if ((flags & MODCMD_REQUIRE_CHANNEL) && !channel) {
 475             if (options & SVCCMD_NOISY)
 476                 send_message(user, bot, "MSG_INVALID_CHANNEL");
 477             return 0;
 478         }
 479         if (flags & MODCMD_REQUIRE_REGCHAN) {
 480             if (!channel->channel_info) {
 481                 if (options & SVCCMD_NOISY)
 482                     send_message(user, bot, "MCMSG_CHAN_NOT_REGISTERED", channel->name);
 483                 return 0;
 484             } else if (IsSuspended(channel->channel_info) && !(flags & MODCMD_IGNORE_CSUSPEND)) {
 485                 /* allow security-override users to always ignore channel suspensions, but flag it as a staff command */
 486                 if (!user->handle_info
 487                     || !HANDLE_FLAGGED(user->handle_info, HELPING)
 488                     || (flags & MODCMD_NEVER_CSUSPEND)) {
 489                     if (options & SVCCMD_NOISY)
 490                         send_message(user, bot, "MCMSG_CHAN_SUSPENDED", channel->name, channel->channel_info->suspended->reason);
 491                     return 0;
 492                 }
 493                 rflags |= ACTION_STAFF;
 494             }
 495         }
 496         if (flags & MODCMD_REQUIRE_CHANUSER) {
 497             if (!uData_checked)
 498                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 499             if (!uData) {
 500                 if (options & SVCCMD_NOISY)
 501                     send_message(user, bot, "MCMSG_NO_CHANNEL_ACCESS", channel->name);
 502                 return 0;
 503             } else if (uData->access < cmd->min_channel_access) {
 504                 if (options & SVCCMD_NOISY)
 505                     send_message(user, bot, "MCMSG_LOW_CHANNEL_ACCESS", channel->name);
 506                 return 0;
 507             }
 508         }
 509         if ((flags & MODCMD_REQUIRE_JOINABLE) && channel) {
 510             if (!uData_checked)
 511                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 512             if ((channel->modes & (MODE_INVITEONLY|MODE_KEY|MODE_SECRET))
 513                 && !uData
 514                 && !IsService(user)
 515                 && !GetUserMode(channel, user)) {
 516                 if (options & SVCCMD_NOISY)
 517                     send_message(user, bot, "MCMSG_REQUIRES_JOINABLE", channel->name);
 518                 return 0;
 519             }
 520         }
 521         if ((flags & MODCMD_TOY) && channel) {
 522             if (!channel->channel_info)
 523                 rflags |= ACTION_NOCHANNEL;
 524             else switch (channel->channel_info->chOpts[chToys]) {
 525             case 'd':
 526                 if (options & SVCCMD_NOISY)
 527                     send_message(user, bot, "MCMSG_TOYS_DISABLED", channel->name);
 528                 return 0;
 529             case 'n':
 530                 rflags |= ACTION_NOCHANNEL;
 531                 break;
 532             case 'p':
 533                 break;
 534             }
 535         }
 536     }
 537     if (flags & MODCMD_REQUIRE_STAFF) {
 538         if (((flags & MODCMD_REQUIRE_OPER) && IsOper(user))
 539             || ((flags & MODCMD_REQUIRE_NETWORK_HELPER) && IsNetworkHelper(user))
 540             || ((flags & MODCMD_REQUIRE_SUPPORT_HELPER) && IsSupportHelper(user))) {
 541             /* allow it */
 542             rflags |= ACTION_STAFF;
 543         } else {
 544             if (options & SVCCMD_NOISY)
 545                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 546             return 0;
 547         }
 548     }
 549     if (flags & MODCMD_REQUIRE_HELPING) {
 550         if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
 551             if (options & SVCCMD_NOISY)
 552                 send_message(user, bot, "MCMSG_MUST_BE_HELPING");
 553             return 0;
 554         }
 555         rflags |= ACTION_STAFF;
 556     }
 557     if (cmd->min_opserv_level > 0) {
 558         if (!oper_has_access(user, bot, cmd->min_opserv_level, !(options & SVCCMD_NOISY)))
 559           return 0;
 560         rflags |= ACTION_STAFF;
 561     }
 562     if (cmd->req_account_flags || cmd->deny_account_flags) {
 563         if (!user->handle_info) {
 564             if (options & SVCCMD_NOISY)
 565                 send_message(user, bot, "MSG_AUTHENTICATE");
 566             return 0;
 567         }
 568         /* Do we want separate or different messages here? */
 569         if ((cmd->req_account_flags & ~user->handle_info->flags)
 570             || (cmd->deny_account_flags & user->handle_info->flags)) {
 571             if (options & SVCCMD_NOISY)
 572                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 573             return 0;
 574         }
 575     }
 576
 577     /* If it's an override, return a special value. */
 578     if ((flags & MODCMD_REQUIRE_CHANUSER)
 579         && (options & SVCCMD_NOISY)
 580         && (!uData || (uData->access > 500))
 581         && (!(uData = _GetChannelUser(channel->channel_info, user->handle_info, 0, 0))
 582             || uData->access < cmd->min_channel_access)
 583         && !(flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))) {
 584         rflags |= ACTION_OVERRIDE;
 585     }
 586     return rflags | ACTION_ALLOW;
 587 }
 588
 589 static int
 590 svccmd_expand_alias(struct svccmd *cmd, unsigned int old_argc, char *old_argv[], char *new_argv[]) {
 591     unsigned int ii, new_argc;
 592     char *arg;
 593
 594     for (ii=new_argc=0; ii<cmd->alias.used; ++ii) {
 595         arg = cmd->alias.list[ii];
 596         if (arg[0] != '$') {
 597             new_argv[new_argc++] = arg;
 598             continue;
 599         }
 600         if (arg[1] == '$') {
 601             new_argv[new_argc++] = arg + 1;
 602         } else if (isdigit(arg[1])) {
 603             unsigned int lbound, ubound, jj;
 604             char *end_num;
 605
 606             lbound = strtoul(arg+1, &end_num, 10);
 607             switch (end_num[0]) {
 608             case 0: ubound = lbound; break;
 609             case '-':
 610                 if (end_num[1] == 0) {
 611                     ubound = old_argc - 1;
 612                     break;
 613                 } else if (isdigit(end_num[1])) {
 614                     ubound = strtoul(end_num+1, NULL, 10);
 615                     break;
 616                 }
 617                 /* else fall through to default case */
 618             default:
 619                 log_module(MAIN_LOG, LOG_ERROR, "Alias expansion parse error in %s (near %s; %s.%s arg %d).", arg, end_num, cmd->parent->bot->nick, cmd->name, ii);
 620                 return 0;
 621             }
 622             if (ubound >= old_argc)
 623                 ubound = old_argc - 1;
 624             if (lbound < old_argc)
 625                 for (jj = lbound; jj <= ubound; )
 626                     new_argv[new_argc++] = old_argv[jj++];
 627         } else {
 628             log_module(MAIN_LOG, LOG_ERROR, "Alias expansion: I do not know how to handle %s (%s.%s arg %d).", arg, cmd->parent->bot->nick, cmd->name, ii);
 629             return 0;
 630         }
 631     }
 632     return new_argc;
 633 }
 634
 635 int
 636 svccmd_invoke_argv(struct userNode *user, struct service *service, struct chanNode *channel, unsigned int argc, char *argv[], unsigned int server_qualified) {
 637     extern struct userNode *chanserv;
 638     struct svccmd *cmd;
 639     unsigned int cmd_arg, perms, flags, options;
 640     char channel_name[CHANNELLEN+1];
 641
 642     options = (server_qualified ? SVCCMD_QUALIFIED : 0) | SVCCMD_DEBIT | SVCCMD_NOISY;
 643     /* Find the command argument. */
 644     cmd_arg = IsChannelName(argv[0]) ? 1 : 0;
 645     if (argc < cmd_arg+1) {
 646         send_message(user, service->bot, "MCMSG_MISSING_COMMAND");
 647         return 0;
 648     }
 649     if (!isalnum(*argv[cmd_arg])) {
 650         /* Silently ignore stuff that doesn't begin with a letter or number. */
 651         return 0;
 652     }
 653     cmd = dict_find(service->commands, argv[cmd_arg], NULL);
 654     if (!cmd) {
 655         if (!channel)
 656             send_message(user, service->bot, "MSG_COMMAND_UNKNOWN", argv[cmd_arg]);
 657         return 0;
 658     }
 659
 660     /* Check pubcmd for the channel. */
 661     if (channel && (channel->channel_info) && (service->bot == chanserv)
 662         && !check_user_level(channel, user, lvlPubCmd, 1, 0)) {
 663         send_message(user, service->bot, "MCMSG_PUBLIC_DENY", channel->name);
 664         return 0;
 665     }
 666
 667     flags = cmd->effective_flags;
 668     /* If they put a channel name first, check if the command allows
 669      * it.  If so, swap it with the command name.
 670      */
 671     if (cmd_arg == 1) {
 672         char *tmp;
 673         /* Complain if we're not supposed to accept the channel. */
 674         if (!(flags & MODCMD_ACCEPT_CHANNEL)) {
 675             send_message(user, service->bot, "MCMSG_NO_CHANNEL_BEFORE");
 676             return 0;
 677         }
 678         if (!(flags & MODCMD_ACCEPT_PCHANNEL)
 679             && (argv[0][0] == '+')) {
 680             send_message(user, service->bot, "MCMSG_NO_PLUS_CHANNEL");
 681             return 0;
 682         }
 683         tmp = argv[1];
 684         argv[1] = argv[0];
 685         argv[0] = tmp;
 686     }
 687
 688     /* Try to grab a channel handle before alias expansion.
 689      * If the command accepts a channel name, and argv[1] is
 690      * one, use it as a channel name, and hide it from logging.
 691      */
 692     if ((argc > 1)
 693         && (flags & MODCMD_ACCEPT_CHANNEL)
 694         && IsChannelName(argv[1])
 695         && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 696         && (channel = dict_find(channels, argv[1], NULL))) {
 697         argv[1] = argv[0];
 698         argv++, argc--;
 699         cmd_arg = 1;
 700     }
 701
 702     /* Expand the alias arguments, if there are any. */
 703     if (cmd->alias.used) {
 704         char *new_argv[MAXNUMPARAMS];
 705         argc = svccmd_expand_alias(cmd, argc, argv, new_argv);
 706         if (!argc) {
 707             send_message(service->bot, user, "MCMSG_ALIAS_ERROR", cmd->name);
 708             return 0;
 709         }
 710         argv = new_argv;
 711
 712         /* Try again to grab a handle to the channel after alias
 713          * expansion, overwriting any previous channel. This should,
 714          * of course, only be done again if an alias was acually
 715          * expanded. */
 716         if ((argc > 1)
 717             && (flags & MODCMD_ACCEPT_CHANNEL)
 718             && IsChannelName(argv[1])
 719             && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 720             && (channel = dict_find(channels, argv[1], NULL))) {
 721             argv[1] = argv[0];
 722             argv++, argc--;
 723             cmd_arg = 1;
 724         }
 725     }
 726
 727     /* Figure out what actions we should do for it.. */
 728     if (cmd_arg && (flags & MODCMD_TOY)) {
 729         /* Do not let user manually specify a channel. */
 730         channel = NULL;
 731     }
 732     if (argc < cmd->command->min_argc) {
 733         send_message(user, service->bot, "MSG_MISSING_PARAMS", cmd->name);
 734         svccmd_send_help_brief(user, service->bot, cmd);
 735         return 0;
 736     }
 737     if (!cmd->command->func) {
 738         send_message(user, service->bot, "MCMSG_INTERNAL_COMMAND", cmd->name);
 739         return 0;
 740     }
 741     perms = svccmd_can_invoke(user, service->bot, cmd, channel, options);
 742     if (!perms)
 743         return 0;
 744     cmd->uses++;
 745     if (perms & ACTION_NOCHANNEL)
 746         channel = NULL;
 747
 748     if (channel)
 749         safestrncpy(channel_name, channel->name, sizeof(channel_name));
 750     else
 751         channel_name[0] = 0;
 752     if (!cmd->command->func(user, channel, argc, argv, cmd))
 753         return 0;
 754     if (!(flags & MODCMD_NO_LOG)) {
 755         enum log_severity slvl;
 756         if (perms & ACTION_STAFF)
 757             slvl = LOG_STAFF;
 758         else if (perms & ACTION_OVERRIDE)
 759             slvl = LOG_OVERRIDE;
 760         else
 761             slvl = LOG_COMMAND;
 762         /* Unsplit argv after running the function to get the benefit
 763          * of any mangling/hiding done by the commands. */
 764         log_audit(cmd->command->parent->clog, slvl, user, service->bot, channel_name, AUDIT_HOSTMASK, unsplit_string(argv, argc, NULL));
 765     }
 766     return 1;
 767 }
 768
 769 /* First line (syntax usually) only help.. used for wrong param counts etc */
 770 int
 771 svccmd_send_help_brief(struct userNode *user, struct userNode *bot, struct svccmd *cmd) {
 772     int r;
 773
 774     /* If it's an alias, show what it's an alias for. */
 775     if (cmd->alias.used) {
 776         char alias_text[MAXLEN];
 777         unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 778         send_message(user, bot, "MCMSG_COMMAND_ALIASES", cmd->name, cmd->command->name);
 779     }
 780     /* Send the syntax line of help.. */
 781     r = send_help_brief(user, bot, cmd->command->parent->helpfile, cmd->name);
 782     if(!r) {
 783         if(cmd->command->name)
 784         {
 785            send_message(user, bot, "MCMSG_COMMAND_ALIASES", cmd->name, cmd->command->name);
 786            r = send_help_brief(user, bot, cmd->command->parent->helpfile, cmd->command->name);
 787         }
 788     }
 789     return r;
 790 }
 791
 792 int is_joiner(struct svccmd *cmd)
 793 {
 794     if(cmd->command->name)
 795     {
 796         if(strcasecmp("joiner", cmd->command->name))
 797             return(0);
 798         else
 799             return(1);
 800     }
 801     return(0);
 802 /*
 803     if(cmd->alias.used)
 804     {
 805         char alias_text[MAXLEN];
 806         unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 807         if(strcasecmp("joiner", alias_text))
 808             return(0);
 809         else
 810             return(1);
 811     }
 812 */
 813 }
 814
 815 int
 816 svccmd_send_help(struct userNode *user, struct service *service, const char *topic) {
 817     struct module *module;
 818     struct svccmd *cmd;
 819     char cmdname[MAXLEN];
 820     unsigned int nn, ii;
 821     int helpsent = 0;
 822
 823     /* If there is no topic show the index */
 824     if (!topic)
 825         topic = "<index>";
 826     /* make heading str (uppercase) */
 827     for (nn=0; topic[nn]; nn++)
 828             cmdname[nn] = toupper(topic[nn]);
 829     cmdname[nn] = 0;
 830
 831     /* If there is a command 'topic', send command help for the command (unless its bound to JOINER) */
 832     if ((cmd = dict_find(service->commands, topic, NULL)) && !is_joiner(cmd))
 833     {
 834         send_message(user, service->bot, "MCMSG_HELP_COMMAND_HEADER", cmdname);
 835         send_message(user, service->bot, "MCMSG_HELP_DIVIDER");
 836         helpsent = send_help(user, service->bot, cmd->command->parent->helpfile, cmd->name);
 837
 838         /* Show if its an alias, or a binding of another command */
 839         if (cmd->alias.used)
 840         {
 841             char alias_text[MAXLEN];
 842             unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 843             send_message(user, service->bot, "MCMSG_HELP_COMMAND_ALIAS", alias_text);
 844             /* If send_help above didnt work, try again with the referenced command.. */
 845             if(!helpsent)
 846                 helpsent = send_help(user, service->bot, cmd->command->parent->helpfile, alias_text);
 847         }
 848         else if(cmd->command->name && strcasecmp(cmd->command->name, cmd->name))
 849         {
 850             send_message(user, service->bot, "MCMSG_HELP_COMMAND_ALIAS", cmd->command->name);
 851             /* If send_help above didnt work, try again with the referenced command.. */
 852             if(!helpsent)
 853                 helpsent = send_help(user, service->bot, cmd->command->parent->helpfile, cmd->command->name);
 854         }
 855         /* If send_help still couldnt find it, tell them sorry */
 856         if(!helpsent)
 857             send_message(user, service->bot, "MCMSG_HELP_COMMAND_UNKNOWN");
 858         send_message(user, service->bot, "MCMSG_HELP_FOOTER");
 859         return true;
 860     }
 861     else /* look for topic in the help files loaded to this nick/service */
 862     {
 863         /* Check for non command help in first primary help file, then next and so on */
 864         /* Note - we need to think about default bindings. see opserv.helpfiles */
 865             for(ii = 0; ii < service->modules.used; ii++)
 866             {
 867                 module = service->modules.list[ii];
 868                 if(!module->helpfile)
 869                     continue;
 870                 if(dict_find(module->helpfile->db, topic, NULL))
 871                 {
 872                     if (module->helpfile && dict_find(module->helpfile->db, topic, NULL))
 873                     {
 874
 875                         send_message(user, service->bot, "MCMSG_HELP_TOPIC_HEADER", cmdname);
 876                         send_message(user, service->bot, "MCMSG_HELP_DIVIDER");
 877                         /* This should never fail but maybe if something is odd? */
 878                         if(!send_help(user, service->bot, module->helpfile, topic))
 879                             send_message(user, service->bot, "MSG_TOPIC_UNKNOWN");
 880                         send_message(user, service->bot, "MCMSG_HELP_FOOTER");
 881                         return true;
 882                     }
 883                 }
 884             }
 885     }
 886     /* Otherwise say we cant find it */
 887     send_message(user, service->bot, "MSG_TOPIC_UNKNOWN");
 888     return 0;
 889 }
 890
 891 static int
 892 svccmd_invoke(struct userNode *user, struct service *service, struct chanNode *channel, char *text, int server_qualified) {
 893     unsigned int argc;
 894     char *argv[MAXNUMPARAMS];
 895
 896     if (!*text)
 897         return 0;
 898     if (service->privileged) {
 899         if (!IsOper(user)) {
 900             send_message(user, service->bot, "MSG_SERVICE_PRIVILEGED", service->bot->nick);
 901             return 0;
 902         }
 903         if (!user->handle_info) {
 904             send_message(user, service->bot, "MSG_AUTHENTICATE");
 905             return 0;
 906         }
 907         if (HANDLE_FLAGGED(user->handle_info, OPER_SUSPENDED)) {
 908             send_message(user, service->bot, "MSG_OPER_SUSPENDED");
 909             return 0;
 910         }
 911     }
 912     argc = split_line(text, false, ArrayLength(argv), argv);
 913     return argc ? svccmd_invoke_argv(user, service, channel, argc, argv, server_qualified) : 0;
 914 }
 915
 916 void
 917 modcmd_privmsg(struct userNode *user, struct userNode *bot, char *text, int server_qualified) {
 918     struct service *service;
 919
 920     if (!(service = dict_find(services, bot->nick, NULL))) {
 921         log_module(MAIN_LOG, LOG_ERROR, "modcmd_privmsg got privmsg for unhandled service %s, unregistering.", bot->nick);
 922         reg_privmsg_func(bot, NULL);
 923         return;
 924     }
 925
 926     if (text[0] == '\x01') {
 927         char *term, response[MAXLEN];
 928
 929         text++; /* Skip leading ^A. */
 930         /* Chop off final ^A. */
 931         term = strchr(text, '\x01');
 932         if (!term)
 933             return;
 934         *term = '\0';
 935         /* Parse out leading text. */
 936         term = strchr(text, ' ');
 937         if (term) {
 938             *term++ = '\0';
 939             if (!*term)
 940                 term = NULL;
 941         }
 942         /* No dict lookup since these are so few. */
 943         if (!irccasecmp(text, "CLIENTINFO")) {
 944             /* Use \001 instead of \x01 because apparently \x01C is
 945              * interpreted as ASCII FS (\034, decimal 28, hex 1C).
 946              */
 947             irc_notice_user(bot, user, "\001CLIENTINFO CLIENTINFO PING TIME USERINFO VERSION\x01");
 948         } else if (!irccasecmp(text, "PING")) {
 949             if (term) {
 950                 snprintf(response, sizeof(response), "\x01PING %s\x01", term);
 951                 irc_notice_user(bot, user, response);
 952             } else {
 953                 irc_notice_user(bot,user, "\x01PING\x01");
 954             }
 955         } else if (!irccasecmp(text, "TIME")) {
 956             struct tm tm;
 957             localtime_r(&now, &tm);
 958             strftime(response, sizeof(response), "\x01TIME %a %b %d %H:%M:%S %Y\x01", &tm);
 959             irc_notice_user(bot, user, response);
 960         } else if (!irccasecmp(text, "USERINFO")) {
 961             snprintf(response, sizeof(response), "\x01USERINFO %s\x01", bot->info);
 962             irc_notice_user(bot, user, response);
 963         } else if (!irccasecmp(text, "VERSION")) {
 964             /* This function provides copyright management information
 965              * to end users of X3. You should not alter, disable or
 966              * remove this command or its accessibility to normal IRC
 967              * users, except to add copyright information pertaining
 968              * to changes you make to X3.
 969              */
 970             snprintf(response, sizeof(response), "\x01VERSION %s\x01", PACKAGE_STRING);
 971             irc_notice_user(bot, user, response);
 972         } else if (!irccasecmp(text, "GENDER")) {
 973              snprintf(response, sizeof(response), "\x01GENDER ummm im still deciding\x01");
 974              irc_notice_user(bot, user, response);
 975         }
 976         return;
 977     }
 978
 979     if (service->msg_hook && service->msg_hook(user, bot, text, server_qualified))
 980         return;
 981     svccmd_invoke(user, service, NULL, text, server_qualified);
 982 }
 983
 984 void
 985 modcmd_chanmsg(struct userNode *user, struct chanNode *chan, char *text, struct userNode *bot) {
 986     struct service *service;
 987     if (!(service = dict_find(services, bot->nick, NULL))) return;
 988     svccmd_invoke(user, service, chan, text, 0);
 989 }
 990
 991 struct service *
 992 service_register(struct userNode *bot) {
 993     struct service *service;
 994     if ((service = dict_find(services, bot->nick, NULL)))
 995         return service;
 996     service = calloc(1, sizeof(*service));
 997     module_list_init(&service->modules);
 998     service->commands = dict_new();
 999     service->bot = bot;
1000     dict_set_free_data(service->commands, free_service_command);
1001     dict_insert(services, service->bot->nick, service);
1002     reg_privmsg_func(bot, modcmd_privmsg);
1003     return service;
1004 }
1005
1006 struct service *
1007 service_find(const char *name) {
1008     return dict_find(services, name, NULL);
1009 }
1010
1011 static void
1012 svccmd_insert(struct service *service, char *name, struct svccmd *svccmd, struct modcmd *modcmd) {
1013     unsigned int ii;
1014     svccmd->parent = service;
1015     svccmd->name = name;
1016     svccmd->command = modcmd;
1017     svccmd->command->bind_count++;
1018     dict_insert(service->commands, svccmd->name, svccmd);
1019     for (ii=0; ii<service->modules.used; ++ii) {
1020         if (service->modules.list[ii] == svccmd->command->parent) break;
1021     }
1022     if (ii == service->modules.used) {
1023         module_list_append(&service->modules, svccmd->command->parent);
1024     }
1025 }
1026
1027 struct svccmd *
1028 service_bind_modcmd(struct service *service, struct modcmd *cmd, const char *name) {
1029     struct svccmd *svccmd;
1030     if ((svccmd = dict_find(service->commands, name, NULL))) {
1031         if (svccmd->command == cmd) return svccmd;
1032         log_module(MAIN_LOG, LOG_ERROR, "Tried to bind command %s.%s into service %s as %s, but already bound (as %s.%s).", cmd->parent->name, cmd->name, service->bot->nick, name, svccmd->command->parent->name, svccmd->command->name);
1033         return NULL;
1034     }
1035     svccmd = calloc(1, sizeof(*svccmd));
1036     svccmd_insert(service, strdup(name), svccmd, cmd);
1037     svccmd_copy_rules(svccmd, cmd->defaults);
1038     return svccmd;
1039 }
1040
1041 static unsigned int
1042 service_bind_module(struct service *service, struct module *module) {
1043     dict_iterator_t it;
1044     struct modcmd *modcmd;
1045     unsigned int count;
1046
1047     count = 0;
1048     for (it = dict_first(module->commands); it; it = iter_next(it)) {
1049         modcmd = iter_data(it);
1050         if (!((modcmd->flags | modcmd->defaults->flags) & MODCMD_NO_DEFAULT_BIND))
1051             if (service_bind_modcmd(service, modcmd, iter_key(it)))
1052                 count++;
1053     }
1054     return count;
1055 }
1056
1057 /* This MUST return argc if the alias expansion code knows how to deal
1058  * with every argument in argv; otherwise, it MUST return the index of
1059  * an argument that the expansion code does not know how to deal with.
1060  */
1061 static unsigned int
1062 check_alias_args(char *argv[], unsigned int argc) {
1063     unsigned int arg;
1064
1065     for (arg=0; arg<argc; ++arg) {
1066         if (argv[arg][0] != '$') {
1067             continue;
1068         } else if (argv[arg][1] == '$') {
1069             continue;
1070         } else if (isdigit(argv[arg][1])) {
1071             char *end_num;
1072
1073             strtoul(argv[arg]+1, &end_num, 10);
1074             switch (end_num[0]) {
1075             case 0:
1076                 continue;
1077             case '-':
1078                 if (end_num[1] == 0)
1079                     continue;
1080                 else if (isdigit(end_num[1]))
1081                     continue;
1082                 /* else fall through to default case */
1083             default:
1084                 return arg;
1085             }
1086         } else
1087             return arg;
1088     }
1089     return arg;
1090 }
1091
1092 static unsigned int
1093 collapse_cmdname(char *argv[], unsigned int argc, char *dest) {
1094     unsigned int ii, pos, arg;
1095     if (!argc) {
1096         dest[0] = 0;
1097         return 0;
1098     }
1099     for (ii=pos=0, arg=0; argv[arg][ii]; ) {
1100         if (argv[arg][ii] == '\\') {
1101             if (argv[arg][ii+1]) {
1102                 /* escaping a real character just puts it in literally */
1103                 dest[pos++] = argv[arg][++ii];
1104             } else if ((arg+1) == argc) {
1105                 /* we ran to the end of the argument list; abort */
1106                 break;
1107             } else {
1108                 /* escape at end of a word is a space */
1109                 dest[pos++] = ' ';
1110                 ii = 0;
1111                 arg++;
1112             }
1113         } else {
1114             /* normal characters don't need escapes */
1115             dest[pos++] = argv[arg][ii++];
1116         }
1117     }
1118     dest[pos] = 0;
1119     return arg + 1;
1120 }
1121
1122 static MODCMD_FUNC(cmd_bind) {
1123     struct service *service;
1124     struct svccmd *template, *newcmd;
1125     char *svcname, *dot;
1126     char newname[MAXLEN], cmdname[MAXLEN];
1127     unsigned int arg, diff;
1128
1129     assert(argc > 3);
1130     svcname = argv[1];
1131     arg = collapse_cmdname(argv+2, argc-2, newname) + 2;
1132     if (!arg) {
1133         reply("MSG_MISSING_PARAMS", cmd->name);
1134         return 0;
1135     }
1136     diff = collapse_cmdname(argv+arg, argc-arg, cmdname);
1137     if (!diff) {
1138         reply("MSG_MISSING_PARAMS", cmd->name);
1139         return 0;
1140     }
1141     arg += diff;
1142
1143     if (!(service = service_find(svcname))) {
1144         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1145         return 0;
1146     }
1147
1148     if ((newcmd = dict_find(service->commands, newname, NULL))) {
1149         reply("MCMSG_ALREADY_BOUND", service->bot->nick, newname);
1150         return 0;
1151     }
1152
1153     if ((dot = strchr(cmdname, '.')) && (dot[1] == '*') && (dot[2] == 0)) {
1154         unsigned int count;
1155         struct module *module;
1156         *dot = 0;
1157         module = module_find((cmdname[0] == '*') ? cmdname+1 : cmdname);
1158         if (!module) {
1159             reply("MSG_MODULE_UNKNOWN", cmdname);
1160             return 0;
1161         }
1162         count = service_bind_module(service, module);
1163         reply("MCMSG_MODULE_BOUND", count, module->name, service->bot->nick);
1164         return count != 0;
1165     }
1166     newcmd = calloc(1, sizeof(*newcmd));
1167     newcmd->name = strdup(newname);
1168     newcmd->parent = service;
1169     if (!(template = svccmd_resolve_name(newcmd, cmdname))) {
1170         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, service->bot->nick);
1171         free(newcmd->name);
1172         free(newcmd);
1173         return 0;
1174     }
1175     if (template->alias.used) {
1176         reply("MCMSG_CANNOT_DOUBLE_ALIAS");
1177         free(newcmd->name);
1178         free(newcmd);
1179         return 0;
1180     }
1181
1182     if (argc > arg) {
1183         /* a more complicated alias; fix it up */
1184         unsigned int nn;
1185
1186         arg -= diff;
1187         nn = check_alias_args(argv+arg, argc-arg);
1188         if (nn+arg < argc) {
1189             reply("MCMSG_BAD_ALIAS_ARGUMENT", argv[nn+arg]);
1190             free(newcmd->name);
1191             free(newcmd);
1192             return 0;
1193         }
1194         newcmd->alias.used = newcmd->alias.size = argc-arg;
1195         newcmd->alias.list = calloc(newcmd->alias.size, sizeof(newcmd->alias.list[0]));
1196         for (nn=0; nn<newcmd->alias.used; ++nn)
1197             newcmd->alias.list[nn] = strdup(argv[nn+arg]);
1198     }
1199
1200     svccmd_insert(service, newcmd->name, newcmd, template->command);
1201     svccmd_copy_rules(newcmd, template);
1202     reply("MCMSG_COMMAND_BOUND", newcmd->name, newcmd->parent->bot->nick);
1203     return 1;
1204 }
1205
1206 static int
1207 service_recheck_bindings(struct service *service, struct module *module) {
1208     dict_iterator_t it;
1209     struct svccmd *cmd;
1210
1211     for (it = dict_first(service->commands); it; it = iter_next(it)) {
1212         cmd = iter_data(it);
1213         if (cmd->command->parent == module) return 0;
1214     }
1215     /* No more bindings, remove it from our list. */
1216     module_list_remove(&service->modules, module);
1217     return 1;
1218 }
1219
1220 static svccmd_unbind_func_t *suf_list;
1221 unsigned int suf_size, suf_used;
1222
1223 void
1224 reg_svccmd_unbind_func(svccmd_unbind_func_t handler) {
1225     if (suf_used == suf_size) {
1226         if (suf_size) {
1227             suf_size <<= 1;
1228             suf_list = realloc(suf_list, suf_size*sizeof(svccmd_unbind_func_t));
1229         } else {
1230             suf_size = 8;
1231             suf_list = malloc(suf_size*sizeof(svccmd_unbind_func_t));
1232         }
1233     }
1234     suf_list[suf_used++] = handler;
1235 }
1236
1237 static MODCMD_FUNC(cmd_unbind) {
1238     struct service *service;
1239     struct userNode *bot;
1240     struct svccmd *bound;
1241     struct module *module;
1242     const char *svcname;
1243     unsigned int arg, ii;
1244     char cmdname[MAXLEN];
1245
1246     assert(argc > 2);
1247     svcname = argv[1];
1248     arg = collapse_cmdname(argv+2, argc-2, cmdname) + 2;
1249     if (!arg) {
1250         reply("MSG_MISSING_PARAMS", cmd->name);
1251         return 0;
1252     }
1253     if (!(service = service_find(svcname))) {
1254         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1255         return 0;
1256     }
1257     if (!(bound = dict_find(service->commands, cmdname, NULL))) {
1258         reply("MCMSG_NO_COMMAND_BOUND", service->bot->nick, cmdname);
1259         return 0;
1260     }
1261     if ((bound->command->flags & MODCMD_KEEP_BOUND) && (bound->command->bind_count == 1)) {
1262         reply("MCMSG_UNBIND_PROHIBITED", bound->command->name);
1263         return 0;
1264     }
1265
1266     for (ii=0; ii<suf_used; ii++)
1267         suf_list[ii](bound);
1268     /* If this command binding is removing itself, we must take care
1269      * not to dereference it after the dict_remove.
1270      */
1271     bot = cmd->parent->bot;
1272     module = cmd->command->parent;
1273     dict_remove(service->commands, bound->name);
1274     send_message(user, bot, "MCMSG_COMMAND_UNBOUND", cmdname, service->bot->nick);
1275     if (service_recheck_bindings(service, module))
1276         send_message(user, bot, "MCMSG_HELPFILE_UNBOUND", module->name, module->name);
1277     return 1;
1278 }
1279
1280 static MODCMD_FUNC(cmd_readhelp) {
1281     const char *modname;
1282     struct module *module;
1283     struct helpfile *old_helpfile;
1284     struct timeval start, stop;
1285
1286     assert(argc > 1);
1287     modname = argv[1];
1288     if (!(module = module_find(modname))) {
1289         reply("MSG_MODULE_UNKNOWN", modname);
1290         return 0;
1291     }
1292     if (!module->helpfile_name) {
1293         reply("MCMSG_NO_HELPFILE", module->name);
1294         return 0;
1295     }
1296     old_helpfile = module->helpfile;
1297     gettimeofday(&start, NULL);
1298     module->helpfile = open_helpfile(module->helpfile_name, module->expand_help);
1299     if (!module->helpfile) {
1300         module->helpfile = old_helpfile;
1301         reply("MCMSG_HELPFILE_ERROR", module->helpfile_name);
1302         return 0;
1303     }
1304     if (old_helpfile) close_helpfile(old_helpfile);
1305     gettimeofday(&stop, NULL);
1306     stop.tv_sec -= start.tv_sec;
1307     stop.tv_usec -= start.tv_usec;
1308     if (stop.tv_usec < 0) {
1309         stop.tv_sec -= 1;
1310         stop.tv_usec += 1000000;
1311     }
1312     reply("MCMSG_HELPFILE_READ", module->name, stop.tv_sec, stop.tv_usec/1000);
1313     return 1;
1314 }
1315
1316 static MODCMD_FUNC(cmd_help) {
1317     const char *topic;
1318
1319     topic = (argc < 2) ? NULL : unsplit_string(argv+1, argc-1, NULL);
1320     return svccmd_send_help(user, cmd->parent, topic);
1321 }
1322
1323 static MODCMD_FUNC(cmd_timecmd) {
1324     struct timeval start, stop;
1325     char cmd_text[MAXLEN];
1326
1327     unsplit_string(argv+1, argc-1, cmd_text);
1328     gettimeofday(&start, NULL);
1329     svccmd_invoke(user, cmd->parent, channel, cmd_text, 0);
1330     gettimeofday(&stop, NULL);
1331     stop.tv_sec -= start.tv_sec;
1332     stop.tv_usec -= start.tv_usec;
1333     if (stop.tv_usec < 0) {
1334         stop.tv_sec -= 1;
1335         stop.tv_usec += 1000000;
1336     }
1337     reply("MCMSG_COMMAND_TIME", cmd_text, stop.tv_sec, stop.tv_usec);
1338     return 1;
1339 }
1340
1341 static MODCMD_FUNC(cmd_command) {
1342     struct svccmd *svccmd;
1343     const char *cmd_name, *fmt_str;
1344     unsigned int flags, shown_flags, nn, pos;
1345     char buf[MAXLEN];
1346
1347     assert(argc >= 2);
1348     cmd_name = unsplit_string(argv+1, argc-1, NULL);
1349     if (!(svccmd = svccmd_resolve_name(cmd, cmd_name))) {
1350         reply("MCMSG_UNKNOWN_COMMAND_2", cmd_name, cmd->parent->bot->nick);
1351         return 0;
1352     }
1353     pos = snprintf(buf, sizeof(buf), "%s.%s", svccmd->command->parent->name, svccmd->command->name);
1354     if (svccmd->alias.used) {
1355         buf[pos++] = ' ';
1356         unsplit_string((char**)svccmd->alias.list+1, svccmd->alias.used-1, buf+pos);
1357         reply("MCMSG_COMMAND_ALIASES", svccmd->name, buf);
1358     } else {
1359         reply("MCMSG_COMMAND_BINDING", svccmd->name, buf);
1360     }
1361     flags = svccmd->effective_flags;
1362     if ((svccmd->parent && svccmd->parent->privileged && !IsOper(user))
1363         || ((flags & MODCMD_REQUIRE_STAFF)
1364             && !IsOper(user) && !IsNetworkHelper(user) && !IsSupportHelper(user))) {
1365         reply("MCMSG_INSPECTION_REFUSED", svccmd->name);
1366         return 0;
1367     }
1368     if (flags & MODCMD_DISABLED) {
1369         reply("MSG_COMMAND_DISABLED", svccmd->name);
1370         return 1;
1371     }
1372     shown_flags = 0;
1373     if (svccmd->min_opserv_level > 0) {
1374         reply("MCMSG_NEED_OPSERV_LEVEL", svccmd->min_opserv_level);
1375         shown_flags |= MODCMD_REQUIRE_OPER | MODCMD_REQUIRE_AUTHED;
1376     }
1377     if (svccmd->min_channel_access > 0) {
1378         reply("MCMSG_NEED_CHANSERV_LEVEL", svccmd->min_channel_access);
1379         shown_flags |= MODCMD_REQUIRE_CHANUSER | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1380     }
1381     if (svccmd->req_account_flags) {
1382         for (nn=pos=0; nn<32; nn++) {
1383             if (!(svccmd->req_account_flags & (1 << nn))) continue;
1384             buf[pos++] = HANDLE_FLAGS[nn];
1385         }
1386         buf[pos] = 0;
1387         reply("MCMSG_NEED_ACCOUNT_FLAGS", buf);
1388         shown_flags |= MODCMD_REQUIRE_AUTHED;
1389     }
1390     if (!flags && !shown_flags) {
1391         reply("MCMSG_NEED_NOTHING", svccmd->name);
1392         return 1;
1393     }
1394     if (flags & ~shown_flags & MODCMD_REQUIRE_HELPING) {
1395         reply("MCMSG_MUST_BE_HELPING");
1396         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1397     }
1398     if (flags & ~shown_flags & MODCMD_REQUIRE_STAFF) {
1399         switch (flags & MODCMD_REQUIRE_STAFF) {
1400         default: case MODCMD_REQUIRE_STAFF:
1401             fmt_str = "MCMSG_NEED_STAFF_ACCESS";
1402             break;
1403         case MODCMD_REQUIRE_OPER:
1404             fmt_str = "MCMSG_NEED_STAFF_OPER";
1405             break;
1406         case MODCMD_REQUIRE_NETWORK_HELPER:
1407             fmt_str = "MCMSG_NEED_STAFF_NETHELPER";
1408             break;
1409         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_NETWORK_HELPER:
1410             fmt_str = "MCMSG_NEED_STAFF_NETHELPER_OR_OPER";
1411             break;
1412         case MODCMD_REQUIRE_SUPPORT_HELPER:
1413             fmt_str = "MCMSG_NEED_STAFF_SHELPER";
1414             break;
1415         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_SUPPORT_HELPER:
1416             fmt_str = "MCMSG_NEED_STAFF_SHELPER_OR_OPER";
1417             break;
1418         case MODCMD_REQUIRE_SUPPORT_HELPER|MODCMD_REQUIRE_NETWORK_HELPER:
1419             fmt_str = "MCMSG_NEED_STAFF_HELPER";
1420             break;
1421         }
1422         reply(fmt_str);
1423         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1424     }
1425     if (flags & ~shown_flags & MODCMD_REQUIRE_JOINABLE) {
1426         reply("MCMSG_NEED_JOINABLE");
1427         shown_flags |= MODCMD_REQUIRE_CHANUSER;
1428     }
1429     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANUSER) {
1430         if (flags & ~shown_flags & MODCMD_IGNORE_CSUSPEND)
1431             reply("MCMSG_NEED_CHANUSER_CSUSPENDABLE");
1432         else
1433             reply("MCMSG_NEED_CHANUSER");
1434         shown_flags |= MODCMD_IGNORE_CSUSPEND | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1435     }
1436     if (flags & ~shown_flags & MODCMD_REQUIRE_REGCHAN) {
1437         reply("MCMSG_NEED_REGCHAN");
1438         shown_flags |= MODCMD_REQUIRE_CHANNEL;
1439     }
1440     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANNEL)
1441         reply("MCMSG_NEED_CHANNEL");
1442     if (flags & ~shown_flags & MODCMD_REQUIRE_AUTHED)
1443         reply("MCMSG_NEED_AUTHED");
1444     if (flags & ~shown_flags & MODCMD_TOY)
1445         reply("MCMSG_IS_TOY", svccmd->name);
1446     if (flags & ~shown_flags & MODCMD_REQUIRE_QUALIFIED) {
1447         const char *botnick = svccmd->parent ? svccmd->parent->bot->nick : "SomeBot";
1448         reply("MCMSG_MUST_QUALIFY", botnick, svccmd->name, botnick);
1449     }
1450     reply("MCMSG_END_REQUIREMENTS", svccmd->name);
1451     return 1;
1452 }
1453
1454 static void
1455 modcmd_describe_command(struct userNode *user, struct svccmd *cmd, struct svccmd *target) {
1456     char buf1[MAXLEN], buf2[MAXLEN];
1457     unsigned int ii, len, buf1_used, buf2_used;
1458
1459     if (target->alias.used) {
1460         unsplit_string((char**)target->alias.list, target->alias.used, buf1);
1461         reply("MCMSG_COMMAND_ALIASES", target->name, buf1);
1462     } else {
1463         snprintf(buf1, sizeof(buf1), "%s.%s", target->command->parent->name, target->command->name);
1464         reply("MCMSG_COMMAND_BINDING", target->name, buf1);
1465     }
1466     for (ii = buf1_used = buf2_used = 0; flags[ii].name; ++ii) {
1467         if (target->flags & flags[ii].flag) {
1468             if (buf1_used)
1469                 buf1[buf1_used++] = ',';
1470             len = strlen(flags[ii].name);
1471             memcpy(buf1 + buf1_used, flags[ii].name, len);
1472             buf1_used += len;
1473         } else if (target->effective_flags & flags[ii].flag) {
1474             if (buf2_used)
1475                 buf2[buf2_used++] = ',';
1476             len = strlen(flags[ii].name);
1477             memcpy(buf2 + buf2_used, flags[ii].name, len);
1478             buf2_used += len;
1479         }
1480     }
1481     if (buf1_used)
1482         buf1[buf1_used] = '\0';
1483     else
1484         strcpy(buf1, user_find_message(user, "MSG_NONE"));
1485     if (buf2_used)
1486         buf2[buf2_used] = '\0';
1487     else
1488         strcpy(buf2, user_find_message(user, "MSG_NONE"));
1489     reply("MCMSG_COMMAND_FLAGS", buf1, buf2);
1490     for (ii = buf1_used = buf2_used = 0; handle_flags[ii]; ++ii) {
1491         if (target->req_account_flags & (1 << ii))
1492             buf1[buf1_used++] = handle_flags[ii];
1493         else if (target->deny_account_flags & (1 << ii))
1494             buf2[buf2_used++] = handle_flags[ii];
1495     }
1496     buf1[buf1_used] = buf2[buf2_used] = '\0';
1497     reply("MCMSG_COMMAND_ACCOUNT_FLAGS", buf1, buf2);
1498     reply("MCMSG_COMMAND_ACCESS_LEVEL", target->min_channel_access, target->min_opserv_level);
1499     reply("MCMSG_COMMAND_USES", target->name, target->uses);
1500 }
1501
1502 static MODCMD_FUNC(cmd_modcmd) {
1503     struct svccmd *svccmd;
1504     unsigned int arg, changed;
1505     char cmdname[MAXLEN];
1506
1507     assert(argc >= 2);
1508     arg = collapse_cmdname(argv+1, argc-1, cmdname) + 1;
1509     if (!arg) {
1510         reply("MSG_MISSING_PARAMS", cmd->name);
1511         return 0;
1512     }
1513     if (!(svccmd = svccmd_resolve_name(cmd, cmdname))) {
1514         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, cmd->parent->bot->nick);
1515         return 0;
1516     }
1517     for (changed = 0; arg+1 < argc; arg += 2) {
1518         if (svccmd_configure(svccmd, user, cmd->parent->bot, argv[arg], argv[arg+1])) {
1519             reply("MCMSG_COMMAND_MODIFIED", argv[arg], svccmd->name);
1520             changed = 1;
1521         }
1522     }
1523     if (changed)
1524         modcmd_set_effective_flags(svccmd);
1525     modcmd_describe_command(user, cmd, svccmd);
1526     return changed;
1527 }
1528
1529 static void
1530 timeout_god(void *data)
1531 {
1532     extern struct userNode *chanserv;
1533     struct userNode *user = data;
1534
1535     if(!user || !IsHelping(user)) return;
1536
1537     HANDLE_CLEAR_FLAG(user->handle_info, HELPING);
1538     send_message(user, chanserv, "MCMSG_GOD_EXPIRED");
1539 }
1540
1541 static MODCMD_FUNC(cmd_god) {
1542     int helping;
1543
1544     if (argc > 1) {
1545         if (enabled_string(argv[1])) {
1546             if (HANDLE_FLAGGED(user->handle_info, HELPING)) {
1547                 reply("MCMSG_ALREADY_HELPING");
1548                 return 0;
1549             }
1550             helping = 1;
1551         } else if (disabled_string(argv[1])) {
1552             if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
1553                 reply("MCMSG_ALREADY_NOT_HELPING");
1554                 return 0;
1555             }
1556             helping = 0;
1557         } else {
1558             reply("MSG_INVALID_BINARY", argv[1]);
1559             return 0;
1560         }
1561     } else {
1562         helping = !IsHelping(user);
1563     }
1564
1565     if (helping) {
1566         HANDLE_SET_FLAG(user->handle_info, HELPING);
1567         timeq_add(now + god_timeout, timeout_god, user);
1568         reply("MCMSG_NOW_HELPING");
1569     } else {
1570         HANDLE_CLEAR_FLAG(user->handle_info, HELPING);
1571         timeq_del(0, timeout_god, user, TIMEQ_IGNORE_WHEN);
1572         reply("MCMSG_NOW_NOT_HELPING");
1573     }
1574
1575     return 1;
1576 }
1577
1578 static MODCMD_FUNC(cmd_joiner) {
1579     char cmdname[MAXLEN];
1580
1581     if (argc < 2) {
1582         int len = sprintf(cmdname, "%s ", cmd->name);
1583         dict_iterator_t it;
1584         struct string_buffer sbuf;
1585
1586         string_buffer_init(&sbuf);
1587         for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1588             if (!ircncasecmp(iter_key(it), cmdname, len)) {
1589                 if (sbuf.used) string_buffer_append_string(&sbuf, ", ");
1590                 string_buffer_append_string(&sbuf, iter_key(it));
1591             }
1592         }
1593         if (!sbuf.used) string_buffer_append(&sbuf, 0);
1594         reply("MCMSG_JOINER_CHOICES", cmd->name, sbuf.list);
1595         string_buffer_clean(&sbuf);
1596         return 1;
1597     }
1598     sprintf(cmdname, "%s %s", cmd->name, argv[1]);
1599     argv[1] = cmdname;
1600     svccmd_invoke_argv(user, cmd->parent, channel, argc-1, argv+1, 0);
1601     return 0; /* never try to log this; the recursive one logs it */
1602 }
1603
1604 static MODCMD_FUNC(cmd_stats_modules) {
1605     struct helpfile_table tbl;
1606     dict_iterator_t it;
1607     unsigned int ii;
1608     struct module *mod;
1609     struct modcmd *modcmd;
1610
1611     if (argc < 2) {
1612         tbl.length = dict_size(modules) + 1;
1613         tbl.width = 3;
1614         tbl.flags = TABLE_PAD_LEFT;
1615         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1616         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1617         tbl.contents[0][0] = "Module";
1618         tbl.contents[0][1] = "Commands";
1619         tbl.contents[0][2] = "Helpfile";
1620         for (ii=1, it=dict_first(modules); it; it=iter_next(it), ii++) {
1621             mod = iter_data(it);
1622             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1623             tbl.contents[ii][0] = mod->name;
1624             tbl.contents[ii][1] = strtab(dict_size(mod->commands));
1625             tbl.contents[ii][2] = mod->helpfile_name ? mod->helpfile_name : "(none)";
1626         }
1627     } else if (!(mod = dict_find(modules, argv[1], NULL))) {
1628         reply("MCMSG_UNKNOWN_MODULE", argv[1]);
1629         return 0;
1630     } else {
1631         reply("MCMSG_MODULE_INFO", mod->name);
1632         tbl.length = dict_size(mod->commands) + 1;
1633         tbl.width = 3;
1634         tbl.flags = TABLE_PAD_LEFT;
1635         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1636         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1637         tbl.contents[0][0] = "Command";
1638         tbl.contents[0][1] = "Min. Args";
1639         tbl.contents[0][2] = "Bind Count";
1640         for (ii=1, it=dict_first(mod->commands); it; it=iter_next(it), ii++) {
1641             modcmd = iter_data(it);
1642             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1643             tbl.contents[ii][0] = modcmd->name;
1644             tbl.contents[ii][1] = strtab(modcmd->min_argc);
1645             tbl.contents[ii][2] = strtab(modcmd->bind_count);
1646         }
1647     }
1648     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1649     return 0;
1650 }
1651
1652 static MODCMD_FUNC(cmd_stats_services) {
1653     struct helpfile_table tbl;
1654     dict_iterator_t it;
1655     unsigned int ii;
1656     struct service *service;
1657     struct svccmd *svccmd;
1658     char *extra;
1659
1660     if (argc < 2) {
1661         tbl.length = dict_size(services) + 1;
1662         tbl.width = 4;
1663         tbl.flags = TABLE_PAD_LEFT;
1664         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1665         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1666         tbl.contents[0][0] = "Service";
1667         tbl.contents[0][1] = "Commands";
1668         tbl.contents[0][2] = "Priv'd?";
1669         tbl.contents[0][3] = "Trigger";
1670         extra = calloc(2, tbl.length);
1671         for (ii=1, it=dict_first(services); it; it=iter_next(it), ii++) {
1672             service = iter_data(it);
1673             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1674             tbl.contents[ii][0] = service->bot->nick;
1675             tbl.contents[ii][1] = strtab(dict_size(service->commands));
1676             tbl.contents[ii][2] = service->privileged ? "yes" : "no";
1677             extra[ii*2] = service->trigger;
1678             tbl.contents[ii][3] = extra+ii*2;
1679         }
1680         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1681         free(extra);
1682         return 0;
1683     } else if (!(service = dict_find(services, argv[1], NULL))) {
1684         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1685         return 0;
1686     } else {
1687         tbl.length = dict_size(service->commands) + 1;
1688         tbl.width = 5;
1689         tbl.flags = TABLE_PAD_LEFT | TABLE_NO_FREE;
1690         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1691         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1692         tbl.contents[0][0] = "Command";
1693         tbl.contents[0][1] = "Module";
1694         tbl.contents[0][2] = "ModCmd";
1695         tbl.contents[0][3] = "Alias?";
1696         tbl.contents[0][4] = strdup("Uses");
1697         for (ii=1, it=dict_first(service->commands); it; it=iter_next(it), ii++) {
1698             svccmd = iter_data(it);
1699             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1700             tbl.contents[ii][0] = svccmd->name;
1701             tbl.contents[ii][1] = svccmd->command->parent->name;
1702             tbl.contents[ii][2] = svccmd->command->name;
1703             tbl.contents[ii][3] = svccmd->alias.used ? "yes" : "no";
1704             tbl.contents[ii][4] = extra = malloc(12);
1705             sprintf(extra, "%u", svccmd->uses);
1706         }
1707         reply("MCMSG_SERVICE_INFO", service->bot->nick);
1708         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1709         for (ii=0; ii<tbl.length; ii++) {
1710             free((char*)tbl.contents[ii][4]);
1711             free(tbl.contents[ii]);
1712         }
1713         free(tbl.contents);
1714         return 0;
1715     }
1716 }
1717
1718 static MODCMD_FUNC(cmd_showcommands) {
1719     struct svccmd_list commands;
1720     struct helpfile_table tbl;
1721     struct svccmd *svccmd;
1722     dict_iterator_t it;
1723     unsigned int ii, ignore_flags = 0;
1724     unsigned int max_opserv_level = 1000;
1725     unsigned short max_chanserv_level = 500;
1726     char show_opserv_level = 0, show_channel_access = 0;
1727
1728     /* Check to see what the max access they want to see is. */
1729     for (ii=1; ii<argc; ++ii) {
1730         if (isdigit(argv[ii][0]))
1731             max_opserv_level = atoi(argv[ii]);
1732         else
1733             max_chanserv_level = user_level_from_name(argv[ii], UL_OWNER);
1734     }
1735
1736     /* Find the matching commands. */
1737     svccmd_list_init(&commands);
1738     if (cmd->parent->privileged)
1739         ignore_flags = MODCMD_REQUIRE_OPER;
1740     for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1741         svccmd = iter_data(it);
1742         if (strchr(svccmd->name, ' '))
1743             continue;
1744         if (!svccmd_can_invoke(user, svccmd->parent->bot, svccmd, channel, SVCCMD_QUALIFIED))
1745             continue;
1746         if (svccmd->min_opserv_level > max_opserv_level)
1747             continue;
1748         if (svccmd->min_channel_access > max_chanserv_level)
1749             continue;
1750         if (svccmd->min_opserv_level > 0)
1751             show_opserv_level = 1;
1752         if (svccmd->min_channel_access > 0)
1753             show_channel_access = 1;
1754         if (svccmd->effective_flags
1755             & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING)
1756             & ~ignore_flags) {
1757             show_channel_access = 1;
1758         }
1759         svccmd_list_append(&commands, svccmd);
1760     }
1761
1762     /* Build the table. */
1763     tbl.length = commands.used + 1;
1764     tbl.width = 1 + show_opserv_level + show_channel_access;
1765     tbl.flags = TABLE_REPEAT_ROWS;
1766     tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1767     tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1768     tbl.contents[0][ii = 0] = "Command";
1769     if (show_opserv_level)
1770         tbl.contents[0][++ii] = "OpServ Level";
1771     if (show_channel_access)
1772         tbl.contents[0][++ii] = "ChanServ Access";
1773     for (ii=0; ii<commands.used; ++ii) {
1774         svccmd = commands.list[ii];
1775         tbl.contents[ii+1] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1776         tbl.contents[ii+1][0] = svccmd->name;
1777         if (show_opserv_level)
1778             tbl.contents[ii+1][1] = strtab(svccmd->min_opserv_level);
1779         if (show_channel_access) {
1780             const char *access;
1781             int flags = svccmd->effective_flags;
1782             if (flags & MODCMD_REQUIRE_HELPING)
1783                 access = "helping";
1784             else if (flags & MODCMD_REQUIRE_STAFF) {
1785                 if (flags & MODCMD_REQUIRE_OPER)
1786                     access = "oper";
1787                 else if (flags & MODCMD_REQUIRE_NETWORK_HELPER)
1788                     access = "net.helper";
1789                 else
1790                     access = "staff";
1791             } else
1792                 access = strtab(svccmd->min_channel_access);
1793             tbl.contents[ii+1][1+show_opserv_level] = access;
1794         }
1795     }
1796     svccmd_list_clean(&commands);
1797     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1798     return 0;
1799 }
1800
1801 static MODCMD_FUNC(cmd_helpfiles) {
1802     struct service *service;
1803     unsigned int ii;
1804
1805     if (!(service = dict_find(services, argv[1], NULL))) {
1806         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1807         return 0;
1808     }
1809
1810     if (argc < 3) {
1811         for (ii=0; ii<service->modules.used; ++ii)
1812             reply("MCMSG_HELPFILE_SEQUENCE", ii+1, service->modules.list[ii]->name);
1813         return 0;
1814     }
1815
1816     service->modules.used = 0;
1817     for (ii=0; ii<argc-2; ii++) {
1818         struct module *module = dict_find(modules, argv[ii+2], NULL);
1819         if (!module) {
1820             reply("MCMSG_UNKNOWN_MODULE", argv[ii+2]);
1821             continue;
1822         }
1823         module_list_append(&service->modules, module);
1824     }
1825     reply("MCMSG_HELPFILE_SEQUENCE_SET", service->bot->nick);
1826     return 1;
1827 }
1828
1829 static MODCMD_FUNC(cmd_service_add) {
1830     const char *nick, *hostname, *desc;
1831     struct userNode *bot;
1832
1833     nick = argv[1];
1834     if (!is_valid_nick(nick)) {
1835         reply("MCMSG_BAD_SERVICE_NICK", nick);
1836         return 0;
1837     }
1838     hostname = argv[2];
1839     desc = unsplit_string(argv+3, argc-3, NULL);
1840     bot = GetUserH(nick);
1841     if (bot && IsService(bot)) {
1842         reply("MCMSG_ALREADY_SERVICE", bot->nick);
1843         return 0;
1844     }
1845     bot = AddService(nick, NULL, desc, hostname);
1846     service_register(bot);
1847     reply("MCMSG_NEW_SERVICE", bot->nick);
1848     return 1;
1849 }
1850
1851 static MODCMD_FUNC(cmd_service_rename) {
1852     struct service *service;
1853
1854     if (!(service = service_find(argv[1]))) {
1855         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1856         return 0;
1857     }
1858     NickChange(service->bot, argv[2], 0);
1859     reply("MCMSG_SERVICE_RENAMED", service->bot->nick);
1860     return 1;
1861 }
1862
1863 static MODCMD_FUNC(cmd_service_trigger) {
1864     struct userNode *bogon;
1865     struct service *service;
1866
1867     if (!(service = service_find(argv[1]))) {
1868         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1869         return 0;
1870     }
1871     if (argc < 3) {
1872         if (service->trigger)
1873             reply("MCMSG_CURRENT_TRIGGER", service->bot->nick, service->trigger);
1874         else
1875             reply("MCMSG_NO_TRIGGER", service->bot->nick);
1876         return 1;
1877     }
1878     if (service->trigger)
1879         reg_chanmsg_func(service->trigger, NULL, NULL);
1880     if (!irccasecmp(argv[2], "none") || !irccasecmp(argv[2], "remove")) {
1881         service->trigger = 0;
1882         reply("MCMSG_REMOVED_TRIGGER", service->bot->nick);
1883     } else if ((bogon = get_chanmsg_bot(argv[2][0]))) {
1884         reply("MCMSG_DUPLICATE_TRIGGER", bogon->nick, argv[2][0]);
1885         return 1;
1886     } else {
1887         service->trigger = argv[2][0];
1888         reg_chanmsg_func(service->trigger, service->bot, modcmd_chanmsg);
1889         reply("MCMSG_NEW_TRIGGER", service->bot->nick, service->trigger);
1890     }
1891     return 1;
1892 }
1893
1894 static MODCMD_FUNC(cmd_service_privileged) {
1895     struct service *service;
1896     const char *newval;
1897
1898     if (!(service = service_find(argv[1]))) {
1899         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1900         return 0;
1901     }
1902     if (argc >= 3)
1903         service->privileged = true_string(argv[2]) || enabled_string(argv[2]);
1904     newval = user_find_message(user, service->privileged ? "MSG_ON" : "MSG_OFF");
1905     reply("MCMSG_SERVICE_PRIVILEGED", service->bot->nick, newval);
1906     return 1;
1907 }
1908
1909 static MODCMD_FUNC(cmd_service_remove) {
1910     char *name, *reason;
1911     struct service *service;
1912
1913     name = argv[1];
1914     if (argc > 2)
1915         reason = unsplit_string(argv+2, argc-2, NULL);
1916     else
1917         reason = "Removing bot";
1918     if (!(service = service_find(name))) {
1919         reply("MCMSG_UNKNOWN_SERVICE", name);
1920         return 0;
1921     }
1922     DelUser(service->bot, NULL, 1, reason);
1923     reply("MCMSG_SERVICE_REMOVED", name);
1924     dict_remove(services, name);
1925     return 1;
1926 }
1927
1928 static MODCMD_FUNC(cmd_dump_messages) {
1929     const char *fname = "strings.db";
1930     struct saxdb_context *ctx;
1931     dict_iterator_t it;
1932     FILE *pf;
1933     int res;
1934
1935     if (!(pf = fopen(fname, "w"))) {
1936         reply("MCMSG_FILE_NOT_OPENED", fname);
1937         return 0;
1938     }
1939     if (!(ctx = saxdb_open_context(pf))) {
1940         reply("MSG_INTERNAL_FAILURE");
1941         return 0;
1942     }
1943     if ((res = setjmp(ctx->jbuf)) != 0) {
1944         ctx->complex.used = 0; /* to avoid false assert()s in close */
1945         saxdb_close_context(ctx);
1946         fclose(pf);
1947         reply("MCMSG_MESSAGE_DUMP_FAILED", strerror(res));
1948         return 0;
1949     } else {
1950         for (it = dict_first(lang_C->messages); it; it = iter_next(it))
1951             saxdb_write_string(ctx, iter_key(it), iter_data(it));
1952         saxdb_close_context(ctx);
1953         fclose(pf);
1954         reply("MCMSG_MESSAGES_DUMPED", fname);
1955         return 1;
1956     }
1957 }
1958
1959 static MODCMD_FUNC(cmd_version) {
1960     /* This function provides copyright management information to end
1961      * users of X3. You should not alter, disable or remove this
1962      * command or its accessibility to normal IRC users, except to add
1963      * copyright information pertaining to changes you make to X3.
1964      */
1965
1966     char *svn = NULL, *svnver = NULL, *svndate = NULL, *v = 0, ver[MAXLEN];
1967     int vc = 0;
1968
1969     strcpy(ver, CVS_VERSION);
1970     for (svn = x3_strtok(&v, ver, " "); svn;
1971          svn = x3_strtok(&v, 0, " ")) {
1972         if (vc == 2)
1973             svnver = svn;
1974         else if (vc == 3)
1975             svndate = svn;
1976         vc++;
1977     }
1978
1979     send_message_type(4, user, cmd->parent->bot, "$b"PACKAGE_STRING"+[%s %s]$b (Based on srvx 1.3.x), Built: "__DATE__", "__TIME__".", svnver, svndate);
1980     send_message_type(4, user, cmd->parent->bot, "$b$b");
1981     send_message_type(4, user, cmd->parent->bot, "Copyright 2000-2006 srvx Development Team.");
1982     send_message_type(4, user, cmd->parent->bot, "Copyright 2004-2006 X3 Development Team.");
1983     send_message_type(4, user, cmd->parent->bot, "$b$b");
1984     send_message_type(4, user, cmd->parent->bot, "The srvx 1.3.x Development Team includes Paul Chang, Adrian Dewhurst, Miles Peterson, Michael Poole and others.");
1985     send_message_type(4, user, cmd->parent->bot, "The X3 Development Team includes Alex Schumann, Reed Loden, Neil Spierling.");
1986     send_message_type(4, user, cmd->parent->bot, "The X3 Development Team can be reached at http://sourceforge.net/projects/evilnet or in #evilnet on irc.afternet.org.");
1987     send_message_type(4, user, cmd->parent->bot, "$b$b");
1988     send_message_type(4, user, cmd->parent->bot, "Thanks goes to Adrian M (thiefmaster), Joe Hansche (joeatrr), Martijn Smit (wasted), and to any other people who have contributed to X3.");
1989     send_message_type(4, user, cmd->parent->bot, "This program is free software; see COPYING in the distribution.");
1990
1991     return 1;
1992 }
1993
1994 static void create_default_binds(int rebind);
1995
1996 static MODCMD_FUNC(cmd_rebindall) {
1997     send_message_type(4, user, cmd->parent->bot, "$bRe-binding all default commands to respective services..$b");
1998     create_default_binds(1);
1999     return 1;
2000 }
2001
2002
2003 void
2004 modcmd_nick_change(struct userNode *user, const char *old_nick) {
2005     struct service *svc;
2006     if (!(svc = dict_find(services, old_nick, NULL)))
2007         return;
2008     dict_remove2(services, old_nick, 1);
2009     dict_insert(services, user->nick, svc);
2010 }
2011
2012 void
2013 modcmd_cleanup(void) {
2014     dict_delete(services);
2015     dict_delete(modules);
2016     if (suf_list)
2017         free(suf_list);
2018 }
2019
2020 static void
2021 modcmd_saxdb_write_command(struct saxdb_context *ctx, struct svccmd *cmd) {
2022     char buf[MAXLEN];
2023     unsigned int nn, len, pos;
2024     struct svccmd *template = cmd->command->defaults;
2025
2026     saxdb_start_record(ctx, cmd->name, 0);
2027     sprintf(buf, "%s.%s", cmd->command->parent->name, cmd->command->name);
2028     saxdb_write_string(ctx, "command", buf);
2029     if (cmd->alias.used)
2030         saxdb_write_string_list(ctx, "aliased", &cmd->alias);
2031     if (cmd->min_opserv_level != template->min_opserv_level)
2032         saxdb_write_int(ctx, "oper_access", cmd->min_opserv_level);
2033     if (cmd->min_channel_access != template->min_channel_access)
2034         saxdb_write_int(ctx, "channel_access", cmd->min_channel_access);
2035     if (cmd->flags != template->flags) {
2036         if (cmd->flags) {
2037             for (nn=pos=0; flags[nn].name; ++nn) {
2038                 if (cmd->flags & flags[nn].flag) {
2039                     buf[pos++] = '+';
2040                     len = strlen(flags[nn].name);
2041                     memcpy(buf+pos, flags[nn].name, len);
2042                     pos += len;
2043                     buf[pos++] = ',';
2044                 }
2045             }
2046         } else {
2047             pos = 1;
2048         }
2049         buf[--pos] = 0;
2050         saxdb_write_string(ctx, "flags", buf);
2051     }
2052     if ((cmd->req_account_flags != template->req_account_flags)
2053         || (cmd->deny_account_flags != template->req_account_flags)) {
2054         pos = 0;
2055         if (cmd->req_account_flags) {
2056             buf[pos++] = '+';
2057             for (nn=0; nn<32; nn++)
2058                 if (cmd->req_account_flags & (1 << nn))
2059                     buf[pos++] = handle_flags[nn];
2060         }
2061         if (cmd->deny_account_flags) {
2062             buf[pos++] = '-';
2063             for (nn=0; nn<32; nn++)
2064                 if (cmd->deny_account_flags & (1 << nn))
2065                     buf[pos++] = handle_flags[nn];
2066         }
2067         buf[pos] = 0;
2068         saxdb_write_string(ctx, "account_flags", buf);
2069     }
2070     saxdb_end_record(ctx);
2071 }
2072
2073 static int
2074 modcmd_saxdb_write(struct saxdb_context *ctx) {
2075     struct string_list slist;
2076     dict_iterator_t it, it2;
2077     struct service *service;
2078     unsigned int ii;
2079
2080     saxdb_start_record(ctx, "bots", 1);
2081     for (it = dict_first(services); it; it = iter_next(it)) {
2082         char buff[16];
2083         service = iter_data(it);
2084         saxdb_start_record(ctx, service->bot->nick, 1);
2085         if (service->trigger) {
2086             buff[0] = service->trigger;
2087             buff[1] = '\0';
2088             saxdb_write_string(ctx, "trigger", buff);
2089         }
2090         saxdb_write_string(ctx, "description", service->bot->info);
2091         saxdb_write_string(ctx, "hostname", service->bot->hostname);
2092         if (service->privileged)
2093             saxdb_write_string(ctx, "privileged", "1");
2094         saxdb_end_record(ctx);
2095     }
2096     saxdb_end_record(ctx);
2097
2098     saxdb_start_record(ctx, "services", 1);
2099     for (it = dict_first(services); it; it = iter_next(it)) {
2100         service = iter_data(it);
2101         saxdb_start_record(ctx, service->bot->nick, 1);
2102         for (it2 = dict_first(service->commands); it2; it2 = iter_next(it2))
2103             modcmd_saxdb_write_command(ctx, iter_data(it2));
2104         saxdb_end_record(ctx);
2105     }
2106     saxdb_end_record(ctx);
2107
2108     saxdb_start_record(ctx, "helpfiles", 1);
2109     slist.size = 0;
2110     for (it = dict_first(services); it; it = iter_next(it)) {
2111         service = iter_data(it);
2112         slist.used = 0;
2113         for (ii = 0; ii < service->modules.used; ++ii)
2114             string_list_append(&slist, service->modules.list[ii]->name);
2115         saxdb_write_string_list(ctx, iter_key(it), &slist);
2116     }
2117     if (slist.list)
2118         free(slist.list);
2119     saxdb_end_record(ctx);
2120
2121     return 0;
2122 }
2123
2124 static int
2125 append_entry(const char *key, UNUSED_ARG(void *data), void *extra) {
2126     struct helpfile_expansion *exp = extra;
2127     int row = exp->value.table.length++;
2128     exp->value.table.contents[row] = calloc(1, sizeof(char*));
2129     exp->value.table.contents[row][0] = key;
2130     return 0;
2131 }
2132
2133 static struct helpfile_expansion
2134 modcmd_expand(const char *variable) {
2135     struct helpfile_expansion exp;
2136     extern struct userNode *message_source;
2137     struct service *service;
2138
2139     service = dict_find(services, message_source->nick, NULL);
2140     if (!irccasecmp(variable, "index")) {
2141         exp.type = HF_TABLE;
2142         exp.value.table.length = 1;
2143         exp.value.table.width = 1;
2144         exp.value.table.flags = TABLE_REPEAT_ROWS | TABLE_NO_HEADERS;
2145         exp.value.table.contents = calloc(dict_size(service->commands)+1, sizeof(char**));
2146         exp.value.table.contents[0] = calloc(1, sizeof(char*));
2147         exp.value.table.contents[0][0] = "Commands";
2148         dict_foreach(service->commands, append_entry, &exp);
2149         return exp;
2150     } else if (!irccasecmp(variable, "languages")) {
2151         struct string_buffer sbuf;
2152         dict_iterator_t it;
2153         sbuf.used = sbuf.size = 0;
2154         sbuf.list = NULL;
2155         for (it = dict_first(languages); it; it = iter_next(it)) {
2156             string_buffer_append_string(&sbuf, iter_key(it));
2157             string_buffer_append(&sbuf, ' ');
2158         }
2159         sbuf.list[--sbuf.used] = 0;
2160         exp.type = HF_STRING;
2161         exp.value.str = sbuf.list;
2162         return exp;
2163     }
2164     exp.type = HF_STRING;
2165     exp.value.str = NULL;
2166     return exp;
2167 }
2168
2169 static void
2170 modcmd_load_bots(struct dict *db, int default_nick) {
2171     dict_iterator_t it;
2172
2173     for (it = dict_first(db); it; it = iter_next(it)) {
2174         struct record_data *rd;
2175         struct service *svc;
2176         const char *nick, *desc, *hostname;
2177
2178         rd = iter_data(it);
2179         if (rd->type != RECDB_OBJECT) {
2180             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'bots/%s' in modcmd db (expected object).", iter_key(it));
2181             continue;
2182         }
2183         nick = database_get_data(rd->d.object, "nick", RECDB_QSTRING);
2184         if (!nick) {
2185             if (default_nick)
2186                 nick = iter_key(it);
2187             else
2188                 continue;
2189         }
2190         svc = service_find(nick);
2191         desc = database_get_data(rd->d.object, "description", RECDB_QSTRING);
2192         hostname = database_get_data(rd->d.object, "hostname", RECDB_QSTRING);
2193         if (desc) {
2194             if (!svc)
2195                 svc = service_register(AddService(nick, NULL, desc, hostname));
2196             else if (hostname)
2197                 strcpy(svc->bot->hostname, hostname);
2198             desc = database_get_data(rd->d.object, "trigger", RECDB_QSTRING);
2199             if (desc)
2200                 svc->trigger = desc[0];
2201             desc = database_get_data(rd->d.object, "privileged", RECDB_QSTRING);
2202             if (desc && (true_string(desc) || enabled_string(desc)))
2203                 svc->privileged = 1;
2204         }
2205     }
2206 }
2207
2208 static void
2209 modcmd_conf_read(void) {
2210     modcmd_load_bots(conf_get_data("services", RECDB_OBJECT), 0);
2211 }
2212
2213 void
2214 modcmd_init(void) {
2215     qsort(flags, ArrayLength(flags)-1, sizeof(flags[0]), flags_qsort);
2216     modules = dict_new();
2217     dict_set_free_data(modules, free_module);
2218     services = dict_new();
2219     dict_set_free_data(services, free_service);
2220     reg_nick_change_func(modcmd_nick_change);
2221     reg_exit_func(modcmd_cleanup);
2222     conf_register_reload(modcmd_conf_read);
2223
2224     modcmd_module = module_register("modcmd", MAIN_LOG, "modcmd.help", modcmd_expand);
2225     bind_command = modcmd_register(modcmd_module, "bind", cmd_bind, 4, MODCMD_KEEP_BOUND, "oper_level", "800", NULL);
2226     help_command = modcmd_register(modcmd_module, "help", cmd_help, 1, 0, "flags", "+nolog", NULL);
2227     modcmd_register(modcmd_module, "command", cmd_command, 2, 0, "flags", "+nolog", NULL);
2228     modcmd_register(modcmd_module, "modcmd", cmd_modcmd, 2, MODCMD_KEEP_BOUND, "template", "bind", NULL);
2229     modcmd_register(modcmd_module, "god", cmd_god, 0, MODCMD_REQUIRE_AUTHED, "flags", "+oper,+networkhelper", NULL);
2230     modcmd_register(modcmd_module, "readhelp", cmd_readhelp, 2, 0, "oper_level", "650", NULL);
2231     modcmd_register(modcmd_module, "timecmd", cmd_timecmd, 2, 0, "oper_level", "1", NULL);
2232     modcmd_register(modcmd_module, "unbind", cmd_unbind, 3, 0, "template", "bind", NULL);
2233     modcmd_register(modcmd_module, "joiner", cmd_joiner, 1, 0, NULL);
2234     modcmd_register(modcmd_module, "stats modules", cmd_stats_modules, 1, 0, "flags", "+oper", NULL);
2235     modcmd_register(modcmd_module, "stats services", cmd_stats_services, 1, 0, "flags", "+oper", NULL);
2236     modcmd_register(modcmd_module, "showcommands", cmd_showcommands, 1, 0, "flags", "+acceptchan", NULL);
2237     modcmd_register(modcmd_module, "helpfiles", cmd_helpfiles, 2, 0, "template", "bind", NULL);
2238     modcmd_register(modcmd_module, "service add", cmd_service_add, 4, 0, "flags", "+oper", NULL);
2239     modcmd_register(modcmd_module, "service rename", cmd_service_rename, 3, 0, "flags", "+oper", NULL);
2240     modcmd_register(modcmd_module, "service trigger", cmd_service_trigger, 2, 0, "flags", "+oper", NULL);
2241     modcmd_register(modcmd_module, "service privileged", cmd_service_privileged, 2, 0, "flags", "+oper", NULL);
2242     modcmd_register(modcmd_module, "service remove", cmd_service_remove, 2, 0, "flags", "+oper", NULL);
2243     modcmd_register(modcmd_module, "dumpmessages", cmd_dump_messages, 1, 0, "oper_level", "1000", NULL);
2244     modcmd_register(modcmd_module, "rebindall", cmd_rebindall, 0, MODCMD_KEEP_BOUND, "oper_level", "800", NULL);
2245     version_command = modcmd_register(modcmd_module, "version", cmd_version, 1, 0, NULL);
2246     message_register_table(msgtab);
2247 }
2248
2249 static void
2250 modcmd_db_load_command(struct service *service, const char *cmdname, struct dict *obj) {
2251     struct svccmd *svccmd;
2252     struct module *module;
2253     struct modcmd *modcmd;
2254     struct string_list *slist;
2255     const char *str, *sep;
2256     char buf[MAXLEN];
2257
2258     str = database_get_data(obj, "command", RECDB_QSTRING);
2259     if (!str) {
2260         log_module(MAIN_LOG, LOG_ERROR, "Missing command for service %s command %s in modcmd.db", service->bot->nick, cmdname);
2261         return;
2262     }
2263     sep = strchr(str, '.');
2264     if (!sep) {
2265         log_module(MAIN_LOG, LOG_ERROR, "Invalid command %s for service %s command %s in modcmd.db", str, service->bot->nick, cmdname);
2266         return;
2267     }
2268     memcpy(buf, str, sep-str);
2269     buf[sep-str] = 0;
2270     if (!(module = module_find(buf))) {
2271         log_module(MAIN_LOG, LOG_ERROR, "Unknown module %s for service %s command %s in modcmd.db", buf, service->bot->nick, cmdname);
2272         return;
2273     }
2274     if (!(modcmd = dict_find(module->commands, sep+1, NULL))) {
2275         log_module(MAIN_LOG, LOG_ERROR, "Unknown command %s in module %s for service %s command %s", sep+1, module->name, service->bot->nick, cmdname);
2276         return;
2277     }
2278     /* Now that we know we have a command to use, fill in the basics. */
2279     svccmd = calloc(1, sizeof(*svccmd));
2280     svccmd_insert(service, strdup(cmdname), svccmd, modcmd);
2281     if ((str = database_get_data(obj, "template", RECDB_QSTRING))) {
2282         add_pending_template(svccmd, str);
2283     } else {
2284         svccmd_copy_rules(svccmd, modcmd->defaults);
2285     }
2286     if ((str = database_get_data(obj, "account_flags", RECDB_QSTRING))) {
2287         svccmd->req_account_flags = svccmd->deny_account_flags = 0;
2288         svccmd_configure(svccmd, NULL, service->bot, "account_flags", str);
2289     }
2290     if ((str = database_get_data(obj, "flags", RECDB_QSTRING))) {
2291         svccmd->flags = 0;
2292         svccmd_configure(svccmd, NULL, service->bot, "flags", str);
2293     }
2294     if ((str = database_get_data(obj, "oper_access", RECDB_QSTRING))
2295         || (str = database_get_data(obj, "opserv_level", RECDB_QSTRING))) {
2296         svccmd_configure(svccmd, NULL, service->bot, "oper_access", str);
2297     }
2298     if ((str = database_get_data(obj, "channel_access", RECDB_QSTRING))
2299         || (str = database_get_data(obj, "chanserv_level", RECDB_QSTRING))) {
2300         svccmd_configure(svccmd, NULL, service->bot, "channel_access", str);
2301     }
2302     if ((slist = database_get_data(obj, "aliased", RECDB_STRING_LIST))) {
2303         unsigned int nn;
2304         svccmd->alias.used = svccmd->alias.size = slist->used;
2305         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2306         for (nn=0; nn<slist->used; ++nn)
2307             svccmd->alias.list[nn] = strdup(slist->list[nn]);
2308     }
2309     modcmd_set_effective_flags(svccmd);
2310 }
2311
2312 static struct svccmd *
2313 service_make_alias(struct service *service, const char *alias, ...) {
2314     char *arg, *argv[MAXNUMPARAMS];
2315     unsigned int nn, argc;
2316     struct svccmd *svccmd, *template;
2317     va_list args;
2318
2319     va_start(args, alias);
2320     argc = 0;
2321     while (1) {
2322         arg = va_arg(args, char*);
2323         if (!arg)
2324             break;
2325         argv[argc++] = arg;
2326     }
2327     va_end(args);
2328     svccmd = calloc(1, sizeof(*svccmd));
2329     if (!(template = svccmd_resolve_name(svccmd, argv[0]))) {
2330         log_module(MAIN_LOG, LOG_ERROR, "Invalid base command %s for alias %s in service %s", argv[0], alias, service->bot->nick);
2331         free(svccmd->name);
2332         free(svccmd);
2333         return NULL;
2334     }
2335     if (argc > 1) {
2336         svccmd->alias.used = svccmd->alias.size = argc;
2337         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2338         for (nn=0; nn<argc; nn++)
2339             svccmd->alias.list[nn] = strdup(argv[nn]);
2340     }
2341     svccmd_insert(service, strdup(alias), svccmd, template->command);
2342     svccmd_copy_rules(svccmd, template);
2343     return svccmd;
2344 }
2345
2346 static int saxdb_present;
2347
2348 static int
2349 modcmd_saxdb_read(struct dict *db) {
2350     struct dict *db2;
2351     dict_iterator_t it, it2;
2352     struct record_data *rd, *rd2;
2353     struct service *service;
2354
2355     modcmd_load_bots(database_get_data(db, "bots", RECDB_OBJECT), 1);
2356     db2 = database_get_data(db, "services", RECDB_OBJECT);
2357     if (!db2) {
2358         log_module(MAIN_LOG, LOG_ERROR, "Missing section 'services' in modcmd db.");
2359         return 1;
2360     }
2361     for (it = dict_first(db2); it; it = iter_next(it)) {
2362         rd = iter_data(it);
2363         if (rd->type != RECDB_OBJECT) {
2364             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s' in modcmd db (expected object).", iter_key(it));
2365             continue;
2366         }
2367         if (!(service = service_find(iter_key(it)))) {
2368             log_module(MAIN_LOG, LOG_ERROR, "Unknown service '%s' listed in modcmd db.", iter_key(it));
2369             continue;
2370         }
2371         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2372             rd2 = iter_data(it2);
2373             if (rd2->type != RECDB_OBJECT) {
2374                 log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s/%s' in modcmd db (expected object).", iter_key(it), iter_key(it2));
2375                 continue;
2376             }
2377             modcmd_db_load_command(service, iter_key(it2), rd2->d.object);
2378         }
2379     }
2380     db2 = database_get_data(db, "helpfiles", RECDB_OBJECT);
2381     for (it = dict_first(db2); it; it = iter_next(it)) {
2382         struct module *module;
2383         struct string_list *slist;
2384         unsigned int ii;
2385
2386         rd = iter_data(it);
2387         if (rd->type != RECDB_STRING_LIST) {
2388             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'helpfiles/%s' in modcmd db (expected string list).", iter_key(it));
2389             continue;
2390         }
2391         slist = rd->d.slist;
2392         if (!(service = service_find(iter_key(it)))) {
2393             /* We probably whined about the service being missing above. */
2394             continue;
2395         }
2396         service->modules.used = 0;
2397         for (ii=0; ii<slist->used; ++ii) {
2398             if (!(module = dict_find(modules, slist->list[ii], NULL))) {
2399                 log_module(MAIN_LOG, LOG_ERROR, "Unknown module '%s' listed in modcmd 'helpfiles/%s'.", slist->list[ii], iter_key(it));
2400                 continue;
2401             }
2402             module_list_append(&service->modules, module);
2403         }
2404     }
2405     saxdb_present = 1;
2406     return 0;
2407 }
2408
2409 static void
2410 create_default_binds(int rebind) {
2411     /* Which services should import which modules by default? */
2412     struct {
2413         const char *svcname;
2414         /* C is lame and requires a fixed size for this array.
2415          * Be sure you NULL-terminate each array and increment the
2416          * size here if you add more default modules to any
2417          * service. */
2418         const char *modnames[8];
2419     } def_binds[] = {
2420         { "ChanServ", { "ChanServ", NULL } },
2421         { "Global", { "Global", NULL } },
2422         { "NickServ", { "NickServ", NULL } },
2423         { "OpServ", { "OpServ", "modcmd", "sendmail", "saxdb", "proxycheck", NULL } },
2424         { "SpamServ", { "SpamServ", NULL } },
2425         { NULL, { NULL } }
2426     };
2427     unsigned int ii, jj;
2428     char buf[128], *nick;
2429     struct service *service;
2430     struct module *module;
2431
2432     for (ii = 0; def_binds[ii].svcname; ++ii) {
2433         sprintf(buf, "services/%s/nick", def_binds[ii].svcname);
2434         if (!(nick = conf_get_data(buf, RECDB_QSTRING)))
2435             continue;
2436         if (!(service = service_find(nick)))
2437             continue;
2438         if (dict_size(service->commands) > 0 && !rebind)
2439             continue;
2440
2441         /* Bind the default modules for this service to it */
2442         for (jj = 0; def_binds[ii].modnames[jj]; ++jj) {
2443             if (!(module = module_find(def_binds[ii].modnames[jj])))
2444                 continue;
2445             service_bind_module(service, module);
2446         }
2447
2448         /* Bind the help and version commands to this service */
2449         service_bind_modcmd(service, help_command, help_command->name);
2450         service_bind_modcmd(service, version_command, version_command->name);
2451
2452         /* Now some silly hax.. (aliases that most people want) */
2453         if (!irccasecmp(def_binds[ii].svcname, "ChanServ")) {
2454             service_make_alias(service, "addowner", "*chanserv.adduser", "$1", "owner", NULL);
2455             service_make_alias(service, "addcoowner", "*chanserv.adduser", "$1", "coowner", NULL);
2456             service_make_alias(service, "addco", "*chanserv.adduser", "$1", "coowner", NULL);
2457             service_make_alias(service, "addmanager", "*chanserv.adduser", "$1", "manager", NULL);
2458             service_make_alias(service, "addop", "*chanserv.adduser", "$1", "op", NULL);
2459             service_make_alias(service, "addhop", "*chanserv.adduser", "$1", "halfop", NULL);
2460             service_make_alias(service, "addpeon", "*chanserv.adduser", "$1", "peon", NULL);
2461             service_make_alias(service, "delowner", "*chanserv.deluser", "owner", "$1", NULL);
2462             service_make_alias(service, "delcoowner", "*chanserv.deluser", "coowner", "$1", NULL);
2463             service_make_alias(service, "delmanager", "*chanserv.deluser", "manager", "$1", NULL);
2464             service_make_alias(service, "delop", "*chanserv.deluser", "op", "$1", NULL);
2465             service_make_alias(service, "delpeon", "*chanserv.deluser", "peon", "$1", NULL);
2466             service_make_alias(service, "llist", "*chanserv.lamers", "$1",  NULL);
2467             service_make_alias(service, "command", "*modcmd.command", NULL);
2468             service_make_alias(service, "god", "*modcmd.god", NULL);
2469         } else if (!irccasecmp(def_binds[ii].svcname, "OpServ")) {
2470             struct svccmd *svccmd;
2471             svccmd = service_make_alias(service, "stats", "*modcmd.joiner", NULL);
2472             svccmd->min_opserv_level = 101;
2473             svccmd = service_make_alias(service, "service", "*modcmd.joiner", NULL);
2474             svccmd->min_opserv_level = 900;
2475             svccmd = service_make_alias(service, "routing", "*modcmd.joiner", NULL);
2476             svccmd->min_opserv_level = 100;
2477         }
2478     }
2479 }
2480
2481 static void
2482 import_aliases_db() {
2483     struct dict *db;
2484     dict_iterator_t it, it2;
2485     struct record_data *rd, *rd2;
2486     struct service *service;
2487     struct module *module;
2488
2489     if (!(db = parse_database("aliases.db")))
2490         return;
2491     for (it = dict_first(db); it; it = iter_next(it)) {
2492         service = service_find(iter_key(it));
2493         if (!service)
2494             continue;
2495         module = module_find(service->bot->nick);
2496         rd = iter_data(it);
2497         if (rd->type != RECDB_OBJECT)
2498             continue;
2499         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2500             struct modcmd *command;
2501             rd2 = iter_data(it2);
2502             if (rd2->type != RECDB_QSTRING)
2503                 continue;
2504             command = dict_find(module->commands, rd2->d.qstring, NULL);
2505             if (!command)
2506                 continue;
2507             service_bind_modcmd(service, command, iter_key(it2));
2508         }
2509     }
2510 }
2511
2512 void
2513 modcmd_finalize(void) {
2514     dict_iterator_t it;
2515
2516     /* Check databases. */
2517     saxdb_register("modcmd", modcmd_saxdb_read, modcmd_saxdb_write);
2518     create_default_binds(0);
2519     if (!saxdb_present)
2520         import_aliases_db();
2521
2522     /* Register services for their triggers. */
2523     for (it = dict_first(services); it; it = iter_next(it)) {
2524         struct service *svc = iter_data(it);
2525         if (svc->trigger)
2526             reg_chanmsg_func(svc->trigger, svc->bot, modcmd_chanmsg);
2527     }
2528
2529     /* Resolve command rule-templates. */
2530     while (pending_templates) {
2531         struct pending_template *ptempl = pending_templates;
2532         struct svccmd *svccmd;
2533
2534         pending_templates = ptempl->next;
2535         /* Only overwrite the current template if we have a valid template. */
2536         if (!strcmp(ptempl->base, "*")) {
2537             /* Do nothing. */
2538         } else if ((svccmd = svccmd_resolve_name(ptempl->cmd, ptempl->base))) {
2539             svccmd_copy_rules(ptempl->cmd, svccmd);
2540         } else {
2541             assert(ptempl->cmd->parent);
2542             log_module(MAIN_LOG, LOG_ERROR, "Unable to resolve template name %s for command %s in service %s.", ptempl->base, ptempl->cmd->name, ptempl->cmd->parent->bot->nick);
2543         }
2544         free(ptempl->base);
2545         free(ptempl);
2546     }
2547 }