src/modcmd.c

   1 /* modcmd.c - Generalized module command support
   2  * Copyright 2002-2004 srvx Development Team
   3  *
   4  * This file is part of srvx.
   5  *
   6  * srvx 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 "arch-version.h"
  22 #include "chanserv.h"
  23 #include "conf.h"
  24 #include "modcmd.h"
  25 #include "saxdb.h"
  26
  27 struct pending_template {
  28     struct svccmd *cmd;
  29     char *base;
  30     struct pending_template *next;
  31 };
  32
  33 static struct dict *modules;
  34 static struct dict *services;
  35 static struct pending_template *pending_templates;
  36 static struct module *modcmd_module;
  37 static struct modcmd *bind_command, *help_command, *version_command;
  38 static const struct message_entry msgtab[] = {
  39     { "MCMSG_BARE_FLAG", "Flag %.*s must be preceded by a + or -." },
  40     { "MCMSG_UNKNOWN_FLAG", "Unknown module flag %.*s." },
  41     { "MCMSG_BAD_OPSERV_LEVEL", "Invalid $O access level %s." },
  42     { "MCMSG_BAD_CHANSERV_LEVEL", "Invalid $C access level %s." },
  43     { "MCMSG_LEVEL_TOO_LOW", "You cannot set the access requirements for %s (your level is too low.)" },
  44     { "MCMSG_LEVEL_TOO_HIGH", "You cannot set the access requirements to %s (that is too high)." },
  45     { "MCMSG_BAD_OPTION", "Unknown option %s." },
  46     { "MCMSG_MUST_QUALIFY", "You $bMUST$b \"/msg %s@$s %s\" (not just /msg %s)." },
  47     { "MCMSG_ACCOUNT_SUSPENDED", "Your account has been suspended." },
  48     { "MCMSG_CHAN_NOT_REGISTERED", "%s has not been registered with $C." },
  49     { "MCMSG_CHAN_SUSPENDED", "$b$C$b access to $b%s$b has been temporarily suspended (%s)." },
  50     { "MCMSG_NO_CHANNEL_ACCESS", "You lack access to %s." },
  51     { "MCMSG_LOW_CHANNEL_ACCESS", "You lack sufficient access in %s to use this command." },
  52     { "MCMSG_REQUIRES_JOINABLE", "You must be in %s (or on its userlist) to use this command." },
  53     { "MCMSG_MUST_BE_HELPING", "You must have security override (helping mode) on to use this command." },
  54     { "MCMSG_MISSING_COMMAND", "You must specify a command as well as a channel." },
  55     { "MCMSG_NO_CHANNEL_BEFORE", "You may not give a channel name before this command." },
  56     { "MCMSG_NO_PLUS_CHANNEL", "You may not use a +channel with this command." },
  57     { "MCMSG_COMMAND_ALIASES", "%s is an alias for: %s" },
  58     { "MCMSG_COMMAND_BINDING", "%s is a binding of: %s" },
  59     { "MCMSG_ALIAS_ERROR", "Error in alias expansion for %s; check the error log for details." },
  60     { "MCMSG_INTERNAL_COMMAND", "$b%s$b is an internal command and cannot be called directly; please check command bindings." },
  61     { "MCMSG_UNKNOWN_MODULE", "Unknown module %s." },
  62     { "MCMSG_UNKNOWN_SERVICE", "Unknown service %s." },
  63     { "MCMSG_ALREADY_BOUND", "%s already has a command bound as %s." },
  64     { "MCMSG_UNKNOWN_COMMAND_2", "Unknown command name %s (relative to service %s)." },
  65     { "MCMSG_COMMAND_MODIFIED", "Option $b%s$b for $b%s$b has been set." },
  66     { "MCMSG_INSPECTION_REFUSED", "You do not have access to inspect command %s." },
  67     { "MCMSG_CANNOT_DOUBLE_ALIAS", "You cannot bind to a complex (argument-carrying) bind." },
  68     { "MCMSG_BAD_ALIAS_ARGUMENT", "Invalid alias argument $b%s$b." },
  69     { "MCMSG_COMMAND_BOUND", "New command %s bound to %s." },
  70     { "MCMSG_MODULE_BOUND", "Bound %d commands from %s to %s." },
  71     { "MCMSG_NO_COMMAND_BOUND", "%s has nothing bound as command %s." },
  72     { "MCMSG_UNBIND_PROHIBITED", "It wouldn't be very much fun to unbind the last %s command, now would it?" },
  73     { "MCMSG_COMMAND_UNBOUND", "Unbound command %s from %s." },
  74     { "MCMSG_HELPFILE_UNBOUND", "Since that was the last command from module %s on the service, the helpfile for %s was removed." },
  75     { "MCMSG_NO_HELPFILE", "Module %s does not have a help file." },
  76     { "MCMSG_HELPFILE_ERROR", "Syntax error reading %s; help contents not changed." },
  77     { "MCMSG_HELPFILE_READ", "Read %s help database in "FMT_TIME_T".%03lu seconds." },
  78     { "MCMSG_COMMAND_TIME", "Command $b%s$b finished in "FMT_TIME_T".%06lu seconds." },
  79     { "MCMSG_NEED_OPSERV_LEVEL", "You must have $O access of at least $b%u$b." },
  80     { "MCMSG_NEED_CHANSERV_LEVEL", "You must have $C access of at least $b%u$b in the channel." },
  81     { "MCMSG_NEED_ACCOUNT_FLAGS", "You must have account flags $b%s$b." },
  82     { "MCMSG_NEED_NOTHING", "Anyone may use the $b%s$b command." },
  83     { "MCMSG_NEED_STAFF_ACCESS", "You must be network staff." },
  84     { "MCMSG_NEED_STAFF_OPER", "You must be an IRC operator." },
  85     { "MCMSG_NEED_STAFF_NETHELPER", "You must be a network helper." },
  86     { "MCMSG_NEED_STAFF_NETHELPER_OR_OPER", "You must be a network helper or IRC operator." },
  87     { "MCMSG_NEED_STAFF_SHELPER", "You must be a support helper." },
  88     { "MCMSG_NEED_STAFF_SHELPER_OR_OPER", "You must be a support helper or IRC operator." },
  89     { "MCMSG_NEED_STAFF_HELPER", "You must be a network or support helper." },
  90     { "MCMSG_NEED_JOINABLE", "The channel must be open or you must be in the channel or on its userlist." },
  91     { "MCMSG_NEED_CHANUSER_CSUSPENDABLE", "You must be on the channel's userlist, and the channel can be suspended." },
  92     { "MCMSG_NEED_CHANUSER", "You must be on the channel's userlist." },
  93     { "MCMSG_NEED_REGCHAN", "You must specify a channel registered with $C." },
  94     { "MCMSG_NEED_CHANNEL", "You must specify a channel that exists." },
  95     { "MCMSG_NEED_AUTHED", "You must be authenticated with $N." },
  96     { "MCMSG_IS_TOY", "$b%s$b is a toy command." },
  97     { "MCMSG_END_REQUIREMENTS", "End of requirements for $b%s$b." },
  98     { "MCMSG_ALREADY_HELPING", "You already have security override enabled." },
  99     { "MCMSG_ALREADY_NOT_HELPING", "You already have security override disabled." },
 100     { "MCMSG_NOW_HELPING", "Security override has been enabled." },
 101     { "MCMSG_NOW_NOT_HELPING", "Security override has been disabled." },
 102     { "MCMSG_JOINER_CHOICES", "Subcommands of %s: %s" },
 103     { "MCMSG_MODULE_INFO", "Commands exported by module $b%s$b:" },
 104     { "MCMSG_SERVICE_INFO", "Commands bound to service $b%s$b:" },
 105     { "MCMSG_TOYS_DISABLED", "Toys are disabled in %s." },
 106     { "MCMSG_PUBLIC_DENY", "Public commands in $b%s$b are restricted." },
 107     { "MCMSG_HELPFILE_SEQUENCE", "Help priority %d: %s" },
 108     { "MCMSG_HELPFILE_SEQUENCE_SET", "Set helpfile priority sequence for %s." },
 109     { "MCMSG_BAD_SERVICE_NICK", "$b%s$b is an invalid nickname." },
 110     { "MCMSG_ALREADY_SERVICE", "$b%s$b is already a service." },
 111     { "MCMSG_NEW_SERVICE", "Added new service bot $b%s$b." },
 112     { "MCMSG_SERVICE_RENAMED", "Service renamed to $b%s$b." },
 113     { "MCMSG_NO_TRIGGER", "$b%s$b does not have an in-channel trigger." },
 114     { "MCMSG_REMOVED_TRIGGER", "Removed trigger from $b%s$b." },
 115     { "MCMSG_DUPLICATE_TRIGGER", "$b%s$b already uses trigger $b%c$b." },
 116     { "MCMSG_CURRENT_TRIGGER", "Trigger for $b%s$b is $b%c$b." },
 117     { "MCMSG_NEW_TRIGGER", "Changed trigger for $b%s$b to $b%c$b." },
 118     { "MCMSG_SERVICE_PRIVILEGED", "Service $b%s$b privileged: $b%s$b." },
 119     { "MCMSG_SERVICE_REMOVED", "Service $b%s$b has been deleted." },
 120     { "MCMSG_FILE_NOT_OPENED", "Unable to open file $b%s$b for writing." },
 121     { "MCMSG_MESSAGES_DUMPED", "Messages written to $b%s$b." },
 122     { "MCMSG_MESSAGE_DUMP_FAILED", "Message dump failed: %s." },
 123     { "MCMSG_COMMAND_FLAGS", "Command flags are %s (inferred: %s)." },
 124     { "MCMSG_COMMAND_ACCOUNT_FLAGS", "Requires account flags +%s, prohibits account flags +%s." },
 125     { "MCMSG_COMMAND_ACCESS_LEVEL", "Requires channel access %d and $O access %d." },
 126     { "MCMSG_COMMAND_USES", "%s has been used %d times." },
 127     { NULL, NULL }
 128 };
 129 struct userData *_GetChannelUser(struct chanData *channel, struct handle_info *handle, int override, int allow_suspended);
 130
 131 #define ACTION_ALLOW     1
 132 #define ACTION_OVERRIDE  2
 133 #define ACTION_NOCHANNEL 4
 134 #define ACTION_STAFF     8
 135
 136 #define RESOLVE_DEPTH    4
 137
 138 static struct modcmd_flag {
 139     const char *name;
 140     unsigned int flag;
 141 } flags[] = {
 142     { "acceptchan", MODCMD_ACCEPT_CHANNEL },
 143     { "acceptpluschan", MODCMD_ACCEPT_PCHANNEL },
 144     { "authed", MODCMD_REQUIRE_AUTHED },
 145     { "channel", MODCMD_REQUIRE_CHANNEL },
 146     { "chanuser", MODCMD_REQUIRE_CHANUSER },
 147     { "disabled", MODCMD_DISABLED },
 148     { "ignore_csuspend", MODCMD_IGNORE_CSUSPEND },
 149     { "joinable", MODCMD_REQUIRE_JOINABLE },
 150     { "keepbound", MODCMD_KEEP_BOUND },
 151     { "loghostmask", MODCMD_LOG_HOSTMASK },
 152     { "nolog", MODCMD_NO_LOG },
 153     { "networkhelper", MODCMD_REQUIRE_NETWORK_HELPER },
 154     { "never_csuspend", MODCMD_NEVER_CSUSPEND },
 155     { "oper", MODCMD_REQUIRE_OPER },
 156     { "qualified", MODCMD_REQUIRE_QUALIFIED },
 157     { "regchan", MODCMD_REQUIRE_REGCHAN },
 158     { "supporthelper", MODCMD_REQUIRE_SUPPORT_HELPER },
 159     { "helping", MODCMD_REQUIRE_HELPING },
 160     { "toy", MODCMD_TOY },
 161     { NULL, 0 }
 162 };
 163
 164 static int
 165 flags_bsearch(const void *a, const void *b) {
 166     const char *key = a;
 167     const struct modcmd_flag *flag = b;
 168     return ircncasecmp(key, flag->name, strlen(flag->name));
 169 }
 170
 171 static int
 172 flags_qsort(const void *a, const void *b) {
 173     const struct modcmd_flag *fa = a, *fb = b;
 174     return irccasecmp(fa->name, fb->name);
 175 }
 176
 177 DEFINE_LIST(svccmd_list, struct svccmd*);
 178 DEFINE_LIST(module_list, struct module*);
 179
 180 static void
 181 free_service_command(void *data) {
 182     struct svccmd *svccmd;
 183     unsigned int nn;
 184
 185     svccmd = data;
 186     if (svccmd->alias.used) {
 187         for (nn=0; nn<svccmd->alias.used; ++nn)
 188             free(svccmd->alias.list[nn]);
 189         free(svccmd->alias.list);
 190     }
 191     free(svccmd->name);
 192     free(svccmd);
 193 }
 194
 195 static void
 196 free_service(void *data) {
 197     struct service *service = data;
 198     dict_delete(service->commands);
 199     module_list_clean(&service->modules);
 200     free(service);
 201 }
 202
 203 static void
 204 free_module_command(void *data) {
 205     struct modcmd *modcmd = data;
 206     free_service_command(modcmd->defaults);
 207     free(modcmd->name);
 208     free(modcmd);
 209 }
 210
 211 static void
 212 free_module(void *data) {
 213     struct module *module = data;
 214     dict_delete(module->commands);
 215     close_helpfile(module->helpfile);
 216     free(module->name);
 217     free(module);
 218 }
 219
 220 struct module *
 221 module_register(const char *name, struct log_type *clog, const char *helpfile_name, expand_func_t expand_help) {
 222     struct module *newmod;
 223
 224     newmod = calloc(1, sizeof(*newmod));
 225     newmod->name = strdup(name);
 226     newmod->commands = dict_new();
 227     dict_set_free_data(newmod->commands, free_module_command);
 228     newmod->clog = clog;
 229     newmod->helpfile_name = helpfile_name;
 230     newmod->expand_help = expand_help;
 231     if (newmod->helpfile_name) {
 232         newmod->helpfile = open_helpfile(newmod->helpfile_name, newmod->expand_help);
 233     }
 234     dict_insert(modules, newmod->name, newmod);
 235     return newmod;
 236 }
 237
 238 struct module *
 239 module_find(const char *name) {
 240     return dict_find(modules, name, NULL);
 241 }
 242
 243 static void
 244 add_pending_template(struct svccmd *cmd, const char *target) {
 245     struct pending_template *pending = calloc(1, sizeof(*pending));
 246     pending->cmd = cmd;
 247     pending->base = strdup(target);
 248     pending->next = pending_templates;
 249     pending_templates = pending;
 250 }
 251
 252 static struct svccmd *
 253 svccmd_resolve_name(struct svccmd *origin, const char *name) {
 254     char *sep, svcname[MAXLEN];
 255
 256     if ((sep = strchr(name, '.'))) {
 257         memcpy(svcname, name, sep-name);
 258         svcname[sep-name] = 0;
 259         name = sep + 1;
 260         if (svcname[0] == '*') {
 261             struct module *module = module_find(svcname+1);
 262             struct modcmd *cmd = module ? dict_find(module->commands, name, NULL) : NULL;
 263             return cmd ? cmd->defaults : NULL;
 264         } else {
 265             struct service *service = service_find(svcname);
 266             return service ? dict_find(service->commands, name, NULL) : NULL;
 267         }
 268     } else {
 269         if (origin->parent) {
 270             return dict_find(origin->parent->commands, name, NULL);
 271         } else {
 272             struct modcmd *cmd = dict_find(origin->command->parent->commands, name, NULL);
 273             return cmd ? cmd->defaults : NULL;
 274         }
 275     }
 276 }
 277
 278 static void
 279 modcmd_set_effective_flags(struct svccmd *cmd) {
 280     int flags = cmd->flags | cmd->command->flags;
 281     if (cmd->min_opserv_level > 0)
 282         flags |= MODCMD_REQUIRE_OPER;
 283     if (cmd->min_channel_access > 0)
 284         flags |= MODCMD_REQUIRE_CHANUSER;
 285     if (flags & MODCMD_REQUIRE_CHANUSER)
 286         flags |= MODCMD_REQUIRE_REGCHAN;
 287     if (flags & MODCMD_REQUIRE_REGCHAN)
 288         flags |= MODCMD_REQUIRE_CHANNEL;
 289     if (flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))
 290         flags |= MODCMD_REQUIRE_AUTHED;
 291     cmd->effective_flags = flags;
 292 }
 293
 294 static void
 295 svccmd_copy_rules(struct svccmd *dest, struct svccmd *src) {
 296     dest->flags |= src->flags;
 297     dest->req_account_flags |= src->req_account_flags;
 298     dest->deny_account_flags |= src->deny_account_flags;
 299     if (src->min_opserv_level > dest->min_opserv_level)
 300         dest->min_opserv_level = src->min_opserv_level;
 301     if (src->min_channel_access > dest->min_channel_access)
 302         dest->min_channel_access = src->min_channel_access;
 303     modcmd_set_effective_flags(dest);
 304 }
 305
 306 static int
 307 svccmd_configure(struct svccmd *cmd, struct userNode *user, struct userNode *bot, const char *param, const char *value) {
 308     if (!irccasecmp(param, "flags")) {
 309         unsigned int set_flags, rem_flags;
 310         struct modcmd_flag *flag;
 311         int opt, end;
 312
 313         for (set_flags = rem_flags = 0; 1; value += end) {
 314             end = strcspn(value, ",");
 315             if (*value == '+')
 316                 opt = 1;
 317             else if (*value == '-')
 318                 opt = 0;
 319             else {
 320                 if (user)
 321                     send_message(user, bot, "MCMSG_BARE_FLAG", end, value);
 322                 else
 323                     log_module(MAIN_LOG, LOG_ERROR, "Flag %.*s must be preceded by a + or - (for command %s).", end, value, cmd->name);
 324                 return 0;
 325             }
 326             value++;
 327             flag = bsearch(value, flags, ArrayLength(flags)-1, sizeof(flags[0]), flags_bsearch);
 328             if (!flag) {
 329                 if (user)
 330                     send_message(user, bot, "MCMSG_UNKNOWN_FLAG", end, value);
 331                 else
 332                     log_module(MAIN_LOG, LOG_ERROR, "Unknown module flag %.*s (for command %s).", end, value, cmd->name);
 333                 return 0;
 334             }
 335             if (opt)
 336                 set_flags |= flag->flag, rem_flags &= ~flag->flag;
 337             else
 338                 rem_flags |= flag->flag, set_flags &= ~flag->flag;
 339             if (!value[end-1])
 340                 break;
 341         }
 342         cmd->flags = (cmd->flags | set_flags) & ~rem_flags;
 343         return 1;
 344     } else if (!irccasecmp(param, "channel_level") || !irccasecmp(param, "channel_access") || !irccasecmp(param, "access")) {
 345         unsigned short ul;
 346         if (!irccasecmp(value, "none") || !irccasecmp(value, "0")) {
 347             cmd->min_channel_access = 0;
 348             return 1;
 349         } else if ((ul = user_level_from_name(value, UL_OWNER)) > 0) {
 350             cmd->min_channel_access = ul;
 351             return 1;
 352         } else if (user) {
 353             send_message(user, bot, "MCMSG_BAD_CHANSERV_LEVEL", value);
 354             return 0;
 355         } else {
 356             log_module(MAIN_LOG, LOG_ERROR, "Invalid ChanServ access level %s (for command %s).", value, cmd->name);
 357             return 0;
 358         }
 359     } else if (!irccasecmp(param, "oper_level") || !irccasecmp(param, "oper_access") || !irccasecmp(param, "level")) {
 360         unsigned int newval = atoi(value);
 361         if (!isdigit(value[0]) || (newval > 1000)) {
 362             if (user)
 363                 send_message(user, bot, "MCMSG_BAD_OPSERV_LEVEL", value);
 364             else
 365                 log_module(MAIN_LOG, LOG_ERROR, "Invalid OpServ access level %s (for command %s).", value, cmd->name);
 366             return 0;
 367         }
 368         if (user && (!user->handle_info || (cmd->min_opserv_level > user->handle_info->opserv_level))) {
 369             send_message(user, bot, "MCMSG_LEVEL_TOO_LOW", cmd->name);
 370             return 0;
 371         }
 372         if (user && (!user->handle_info || (newval > user->handle_info->opserv_level))) {
 373             send_message(user, bot, "MCMSG_LEVEL_TOO_HIGH", value);
 374             return 0;
 375         }
 376         cmd->min_opserv_level = newval;
 377         return 1;
 378     } else if (!irccasecmp(param, "account_flags")) {
 379         return nickserv_modify_handle_flags(user, bot, value, &cmd->req_account_flags, &cmd->deny_account_flags);
 380     } else {
 381         if (user)
 382             send_message(user, bot, "MCMSG_BAD_OPTION", param);
 383         else
 384             log_module(MAIN_LOG, LOG_ERROR, "Unknown option %s (for command %s).", param, cmd->name);
 385         return 0;
 386     }
 387 }
 388
 389 struct modcmd *
 390 modcmd_register(struct module *module, const char *name, modcmd_func_t func, unsigned int min_argc, unsigned int flags, ...) {
 391     struct modcmd *newcmd;
 392     va_list args;
 393     const char *param, *value;
 394
 395     newcmd = calloc(1, sizeof(*newcmd));
 396     newcmd->name = strdup(name);
 397     newcmd->parent = module;
 398     newcmd->func = func;
 399     newcmd->min_argc = min_argc;
 400     newcmd->flags = flags;
 401     newcmd->defaults = calloc(1, sizeof(*newcmd->defaults));
 402     newcmd->defaults->name = strdup(newcmd->name);
 403     newcmd->defaults->command = newcmd;
 404     dict_insert(module->commands, newcmd->name, newcmd);
 405     if (newcmd->flags & (MODCMD_REQUIRE_REGCHAN|MODCMD_REQUIRE_CHANNEL|MODCMD_REQUIRE_CHANUSER|MODCMD_REQUIRE_JOINABLE)) {
 406         newcmd->defaults->flags |= MODCMD_ACCEPT_CHANNEL;
 407     }
 408     if (newcmd->flags & MODCMD_REQUIRE_STAFF) {
 409         newcmd->defaults->flags |= MODCMD_REQUIRE_AUTHED;
 410     }
 411     va_start(args, flags);
 412     while ((param = va_arg(args, const char*))) {
 413         value = va_arg(args, const char*);
 414         if (!irccasecmp(param, "template")) {
 415             struct svccmd *svccmd = svccmd_resolve_name(newcmd->defaults, value);
 416             if (svccmd) {
 417                 svccmd_copy_rules(newcmd->defaults, svccmd);
 418             } else {
 419                 log_module(MAIN_LOG, LOG_ERROR, "Unable to resolve template name %s for %s.%s.", value, newcmd->parent->name, newcmd->name);
 420             }
 421             add_pending_template(newcmd->defaults, value);
 422         } else {
 423             svccmd_configure(newcmd->defaults, NULL, NULL, param, value);
 424         }
 425     }
 426     modcmd_set_effective_flags(newcmd->defaults);
 427     va_end(args);
 428     return newcmd;
 429 }
 430
 431 /* This is kind of a lame hack, but it is actually simpler than having
 432  * the permission check vary based on the command itself, or having a
 433  * more generic rule system.
 434  */
 435 int
 436 svccmd_can_invoke(struct userNode *user, struct userNode *bot, struct svccmd *cmd, struct chanNode *channel, int options) {
 437     unsigned int uData_checked = 0;
 438     struct userData *uData = NULL;
 439     int rflags = 0, flags = cmd->effective_flags;
 440
 441     if (flags & MODCMD_DISABLED) {
 442         if (options & SVCCMD_NOISY)
 443             send_message(user, bot, "MSG_COMMAND_DISABLED", cmd->name);
 444         return 0;
 445     }
 446     if ((flags & MODCMD_REQUIRE_QUALIFIED) && !(options & SVCCMD_QUALIFIED)) {
 447         if (options & SVCCMD_NOISY)
 448             send_message(user, bot, "MCMSG_MUST_QUALIFY", bot->nick, cmd->name, bot->nick);
 449         return 0;
 450     }
 451     if (flags & MODCMD_REQUIRE_AUTHED) {
 452         if (!user->handle_info) {
 453             if (options & SVCCMD_NOISY)
 454                 send_message(user, bot, "MSG_AUTHENTICATE");
 455             return 0;
 456         }
 457         if (HANDLE_FLAGGED(user->handle_info, SUSPENDED)) {
 458             if (options & SVCCMD_NOISY)
 459                 send_message(user, bot, "MCMSG_ACCOUNT_SUSPENDED");
 460             return 0;
 461         }
 462     }
 463     if (channel || (options & SVCCMD_NOISY)) {
 464         if ((flags & MODCMD_REQUIRE_CHANNEL) && !channel) {
 465             if (options & SVCCMD_NOISY)
 466                 send_message(user, bot, "MSG_INVALID_CHANNEL");
 467             return 0;
 468         }
 469         if (flags & MODCMD_REQUIRE_REGCHAN) {
 470             if (!channel->channel_info) {
 471                 if (options & SVCCMD_NOISY)
 472                     send_message(user, bot, "MCMSG_CHAN_NOT_REGISTERED", channel->name);
 473                 return 0;
 474             } else if (IsSuspended(channel->channel_info) && !(flags & MODCMD_IGNORE_CSUSPEND)) {
 475                 /* allow security-override users to always ignore channel suspensions, but flag it as a staff command */
 476                 if (!user->handle_info
 477                     || !HANDLE_FLAGGED(user->handle_info, HELPING)
 478                     || (flags & MODCMD_NEVER_CSUSPEND)) {
 479                     if (options & SVCCMD_NOISY)
 480                         send_message(user, bot, "MCMSG_CHAN_SUSPENDED", channel->name, channel->channel_info->suspended->reason);
 481                     return 0;
 482                 }
 483                 rflags |= ACTION_STAFF;
 484             }
 485         }
 486         if (flags & MODCMD_REQUIRE_CHANUSER) {
 487             if (!uData_checked)
 488                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 489             if (!uData) {
 490                 if (options & SVCCMD_NOISY)
 491                     send_message(user, bot, "MCMSG_NO_CHANNEL_ACCESS", channel->name);
 492                 return 0;
 493             } else if (uData->access < cmd->min_channel_access) {
 494                 if (options & SVCCMD_NOISY)
 495                     send_message(user, bot, "MCMSG_LOW_CHANNEL_ACCESS", channel->name);
 496                 return 0;
 497             }
 498         }
 499         if ((flags & MODCMD_REQUIRE_JOINABLE) && channel) {
 500             if (!uData_checked)
 501                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 502             if ((channel->modes & (MODE_INVITEONLY|MODE_KEY|MODE_SECRET))
 503                 && !uData
 504                 && !IsService(user)
 505                 && !GetUserMode(channel, user)) {
 506                 if (options & SVCCMD_NOISY)
 507                     send_message(user, bot, "MCMSG_REQUIRES_JOINABLE", channel->name);
 508                 return 0;
 509             }
 510         }
 511         if ((flags & MODCMD_TOY) && channel) {
 512             if (!channel->channel_info)
 513                 rflags |= ACTION_NOCHANNEL;
 514             else switch (channel->channel_info->chOpts[chToys]) {
 515             case 'd':
 516                 if (options & SVCCMD_NOISY)
 517                     send_message(user, bot, "MCMSG_TOYS_DISABLED", channel->name);
 518                 return 0;
 519             case 'n':
 520                 rflags |= ACTION_NOCHANNEL;
 521                 break;
 522             case 'p':
 523                 break;
 524             }
 525         }
 526     }
 527     if (flags & MODCMD_REQUIRE_STAFF) {
 528         if (((flags & MODCMD_REQUIRE_OPER) && IsOper(user))
 529             || ((flags & MODCMD_REQUIRE_NETWORK_HELPER) && IsNetworkHelper(user))
 530             || ((flags & MODCMD_REQUIRE_SUPPORT_HELPER) && IsSupportHelper(user))) {
 531             /* allow it */
 532             rflags |= ACTION_STAFF;
 533         } else {
 534             if (options & SVCCMD_NOISY)
 535                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 536             return 0;
 537         }
 538     }
 539     if (flags & MODCMD_REQUIRE_HELPING) {
 540         if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
 541             if (options & SVCCMD_NOISY)
 542                 send_message(user, bot, "MCMSG_MUST_BE_HELPING");
 543             return 0;
 544         }
 545         rflags |= ACTION_STAFF;
 546     }
 547     if (cmd->min_opserv_level > 0) {
 548         if (!oper_has_access(user, bot, cmd->min_opserv_level, !(options & SVCCMD_NOISY))) return 0;
 549         rflags |= ACTION_STAFF;
 550     }
 551     if (cmd->req_account_flags || cmd->deny_account_flags) {
 552         if (!user->handle_info) {
 553             if (options & SVCCMD_NOISY)
 554                 send_message(user, bot, "MSG_AUTHENTICATE");
 555             return 0;
 556         }
 557         /* Do we want separate or different messages here? */
 558         if ((cmd->req_account_flags & ~user->handle_info->flags)
 559             || (cmd->deny_account_flags & user->handle_info->flags)) {
 560             if (options & SVCCMD_NOISY)
 561                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 562             return 0;
 563         }
 564     }
 565
 566     /* If it's an override, return a special value. */
 567     if ((flags & MODCMD_REQUIRE_CHANUSER)
 568         && (options & SVCCMD_NOISY)
 569         && (uData->access > 500)
 570         && (!(uData = _GetChannelUser(channel->channel_info, user->handle_info, 0, 0))
 571             || uData->access < cmd->min_channel_access)
 572         && !(flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))) {
 573         rflags |= ACTION_OVERRIDE;
 574     }
 575     return rflags | ACTION_ALLOW;
 576 }
 577
 578 static int
 579 svccmd_expand_alias(struct svccmd *cmd, unsigned int old_argc, char *old_argv[], char *new_argv[]) {
 580     unsigned int ii, new_argc;
 581     char *arg;
 582
 583     for (ii=new_argc=0; ii<cmd->alias.used; ++ii) {
 584         arg = cmd->alias.list[ii];
 585         if (arg[0] != '$') {
 586             new_argv[new_argc++] = arg;
 587             continue;
 588         }
 589         if (arg[1] == '$') {
 590             new_argv[new_argc++] = arg + 1;
 591         } else if (isdigit(arg[1])) {
 592             unsigned int lbound, ubound, jj;
 593             char *end_num;
 594
 595             lbound = strtoul(arg+1, &end_num, 10);
 596             switch (end_num[0]) {
 597             case 0: ubound = lbound; break;
 598             case '-':
 599                 if (end_num[1] == 0) {
 600                     ubound = old_argc - 1;
 601                     break;
 602                 } else if (isdigit(end_num[1])) {
 603                     ubound = strtoul(end_num+1, NULL, 10);
 604                     break;
 605                 }
 606                 /* else fall through to default case */
 607             default:
 608                 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);
 609                 return 0;
 610             }
 611             if (ubound >= old_argc)
 612                 ubound = old_argc - 1;
 613             if (lbound < old_argc)
 614                 for (jj = lbound; jj <= ubound; )
 615                     new_argv[new_argc++] = old_argv[jj++];
 616         } else {
 617             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);
 618             return 0;
 619         }
 620     }
 621     return new_argc;
 622 }
 623
 624 int
 625 svccmd_invoke_argv(struct userNode *user, struct service *service, struct chanNode *channel, unsigned int argc, char *argv[], unsigned int server_qualified) {
 626     extern struct userNode *chanserv;
 627     struct svccmd *cmd;
 628     unsigned int cmd_arg, perms, flags, options;
 629     char channel_name[CHANNELLEN+1];
 630
 631     /* First check pubcmd for the channel. */
 632     if (channel && (channel->channel_info) && (service->bot == chanserv)
 633         && !check_user_level(channel, user, lvlPubCmd, 1, 0)) {
 634         send_message(user, service->bot, "MCMSG_PUBLIC_DENY", channel->name);
 635         return 0;
 636     }
 637
 638     options = (server_qualified ? SVCCMD_QUALIFIED : 0) | SVCCMD_DEBIT | SVCCMD_NOISY;
 639     /* Find the command argument. */
 640     cmd_arg = IsChannelName(argv[0]) ? 1 : 0;
 641     if (argc < cmd_arg+1) {
 642         send_message(user, service->bot, "MCMSG_MISSING_COMMAND");
 643         return 0;
 644     }
 645     if (!isalnum(*argv[cmd_arg])) {
 646         /* Silently ignore stuff that doesn't begin with a letter or number. */
 647         return 0;
 648     }
 649     cmd = dict_find(service->commands, argv[cmd_arg], NULL);
 650     if (!cmd) {
 651         if (!channel)
 652             send_message(user, service->bot, "MSG_COMMAND_UNKNOWN", argv[cmd_arg]);
 653         return 0;
 654     }
 655     flags = cmd->effective_flags;
 656     /* If they put a channel name first, check if the command allows
 657      * it.  If so, swap it with the command name.
 658      */
 659     if (cmd_arg == 1) {
 660         char *tmp;
 661         /* Complain if we're not supposed to accept the channel. */
 662         if (!(flags & MODCMD_ACCEPT_CHANNEL)) {
 663             send_message(user, service->bot, "MCMSG_NO_CHANNEL_BEFORE");
 664             return 0;
 665         }
 666         if (!(flags & MODCMD_ACCEPT_PCHANNEL)
 667             && (argv[0][0] == '+')) {
 668             send_message(user, service->bot, "MCMSG_NO_PLUS_CHANNEL");
 669             return 0;
 670         }
 671         tmp = argv[1];
 672         argv[1] = argv[0];
 673         argv[0] = tmp;
 674     }
 675
 676     /* Try to grab a channel handle before alias expansion.
 677      * If the command accepts a channel name, and argv[1] is
 678      * one, use it as a channel name, and hide it from logging.
 679      */
 680     if ((argc > 1)
 681         && (flags & MODCMD_ACCEPT_CHANNEL)
 682         && IsChannelName(argv[1])
 683         && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 684         && (channel = dict_find(channels, argv[1], NULL))) {
 685         argv[1] = argv[0];
 686         argv++, argc--;
 687         cmd_arg = 1;
 688     }
 689
 690     /* Expand the alias arguments, if there are any. */
 691     if (cmd->alias.used) {
 692         char *new_argv[MAXNUMPARAMS];
 693         argc = svccmd_expand_alias(cmd, argc, argv, new_argv);
 694         if (!argc) {
 695             send_message(service->bot, user, "MCMSG_ALIAS_ERROR", cmd->name);
 696             return 0;
 697         }
 698         argv = new_argv;
 699
 700         /* Try again to grab a handle to the channel after alias
 701          * expansion, overwriting any previous channel. This should,
 702          * of course, only be done again if an alias was acually
 703          * expanded. */
 704         if ((argc > 1)
 705             && (flags & MODCMD_ACCEPT_CHANNEL)
 706             && IsChannelName(argv[1])
 707             && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 708             && (channel = dict_find(channels, argv[1], NULL))) {
 709             argv[1] = argv[0];
 710             argv++, argc--;
 711             cmd_arg = 1;
 712         }
 713     }
 714
 715     /* Figure out what actions we should do for it.. */
 716     if (cmd_arg && (flags & MODCMD_TOY)) {
 717         /* Do not let user manually specify a channel. */
 718         channel = NULL;
 719     }
 720     if (argc < cmd->command->min_argc) {
 721         send_message(user, service->bot, "MSG_MISSING_PARAMS", cmd->name);
 722         return 0;
 723     }
 724     if (!cmd->command->func) {
 725         send_message(user, service->bot, "MCMSG_INTERNAL_COMMAND", cmd->name);
 726         return 0;
 727     }
 728     perms = svccmd_can_invoke(user, service->bot, cmd, channel, options);
 729     if (!perms)
 730         return 0;
 731     cmd->uses++;
 732     if (perms & ACTION_NOCHANNEL)
 733         channel = NULL;
 734
 735     if (channel)
 736         safestrncpy(channel_name, channel->name, sizeof(channel_name));
 737     else
 738         channel_name[0] = 0;
 739     if (!cmd->command->func(user, channel, argc, argv, cmd))
 740         return 0;
 741     if (!(flags & MODCMD_NO_LOG)) {
 742         enum log_severity slvl;
 743         if (perms & ACTION_STAFF)
 744             slvl = LOG_STAFF;
 745         else if (perms & ACTION_OVERRIDE)
 746             slvl = LOG_OVERRIDE;
 747         else
 748             slvl = LOG_COMMAND;
 749         /* Unsplit argv after running the function to get the benefit
 750          * of any mangling/hiding done by the commands. */
 751         log_audit(cmd->command->parent->clog, slvl, user, service->bot, channel_name, ((flags & MODCMD_LOG_HOSTMASK) ? AUDIT_HOSTMASK : 0), unsplit_string(argv, argc, NULL));
 752     }
 753     return 1;
 754 }
 755
 756 int
 757 svccmd_send_help(struct userNode *user, struct userNode *bot, struct svccmd *cmd) {
 758     char cmdname[MAXLEN];
 759     unsigned int nn;
 760     /* Show command name (in bold). */
 761     for (nn=0; cmd->name[nn]; nn++)
 762         cmdname[nn] = toupper(cmd->name[nn]);
 763     cmdname[nn] = 0;
 764     send_message_type(4, user, bot, "$b%s$b", cmdname);
 765     /* If it's an alias, show what it's an alias for. */
 766     if (cmd->alias.used) {
 767         char alias_text[MAXLEN];
 768         unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 769         send_message(user, bot, "MCMSG_COMMAND_ALIASES", cmd->name, alias_text);
 770     }
 771     /* Show the help entry for the underlying command. */
 772     return send_help(user, bot, cmd->command->parent->helpfile, cmd->command->name);
 773 }
 774
 775 int
 776 svccmd_send_help_2(struct userNode *user, struct service *service, const char *topic) {
 777     struct module *module;
 778     struct svccmd *cmd;
 779     unsigned int ii;
 780
 781     if ((cmd = dict_find(service->commands, topic, NULL)))
 782         return svccmd_send_help(user, service->bot, cmd);
 783     if (!topic)
 784         topic = "<index>";
 785     for (ii = 0; ii < service->modules.used; ++ii) {
 786         module = service->modules.list[ii];
 787         if (!module->helpfile)
 788             continue;
 789         if (dict_find(module->helpfile->db, topic, NULL))
 790             return send_help(user, service->bot, module->helpfile, topic);
 791     }
 792     send_message(user, service->bot, "MSG_TOPIC_UNKNOWN");
 793     return 0;
 794 }
 795
 796 static int
 797 svccmd_invoke(struct userNode *user, struct service *service, struct chanNode *channel, char *text, int server_qualified) {
 798     unsigned int argc;
 799     char *argv[MAXNUMPARAMS];
 800
 801     if (!*text)
 802         return 0;
 803     if (service->privileged) {
 804         if (!IsOper(user)) {
 805             send_message(user, service->bot, "MSG_SERVICE_PRIVILEGED", service->bot->nick);
 806             return 0;
 807         }
 808         if (!user->handle_info) {
 809             send_message(user, service->bot, "MSG_AUTHENTICATE");
 810             return 0;
 811         }
 812         if (HANDLE_FLAGGED(user->handle_info, OPER_SUSPENDED)) {
 813             send_message(user, service->bot, "MSG_OPER_SUSPENDED");
 814             return 0;
 815         }
 816     }
 817     argc = split_line(text, false, ArrayLength(argv), argv);
 818     return argc ? svccmd_invoke_argv(user, service, channel, argc, argv, server_qualified) : 0;
 819 }
 820
 821 void
 822 modcmd_privmsg(struct userNode *user, struct userNode *bot, char *text, int server_qualified) {
 823     struct service *service;
 824
 825     if (!(service = dict_find(services, bot->nick, NULL))) {
 826         log_module(MAIN_LOG, LOG_ERROR, "modcmd_privmsg got privmsg for unhandled service %s, unregistering.", bot->nick);
 827         reg_privmsg_func(bot, NULL);
 828         return;
 829     }
 830
 831     if (text[0] == '\x01') {
 832         char *term, response[MAXLEN];
 833
 834         text++; /* Skip leading ^A. */
 835         /* Chop off final ^A. */
 836         term = strchr(text, '\x01');
 837         if (!term)
 838             return;
 839         *term = '\0';
 840         /* Parse out leading text. */
 841         term = strchr(text, ' ');
 842         if (term) {
 843             *term++ = '\0';
 844             if (!*term)
 845                 term = NULL;
 846         }
 847         /* No dict lookup since these are so few. */
 848         if (!irccasecmp(text, "CLIENTINFO")) {
 849             /* Use \001 instead of \x01 because apparently \x01C is
 850              * interpreted as ASCII FS (\034, decimal 28, hex 1C).
 851              */
 852             irc_notice_user(bot, user, "\001CLIENTINFO CLIENTINFO PING TIME USERINFO VERSION\x01");
 853         } else if (!irccasecmp(text, "PING")) {
 854             if (term) {
 855                 snprintf(response, sizeof(response), "\x01PONG %s\x01", term);
 856                 irc_notice_user(bot, user, response);
 857             } else {
 858                 irc_notice_user(bot,user, "\x01PONG\x01");
 859             }
 860         } else if (!irccasecmp(text, "TIME")) {
 861             struct tm tm;
 862             localtime_r(&now, &tm);
 863             strftime(response, sizeof(response), "\x01TIME %a %b %d %H:%M:%S %Y\x01", &tm);
 864             irc_notice_user(bot, user, response);
 865         } else if (!irccasecmp(text, "USERINFO")) {
 866             snprintf(response, sizeof(response), "\x01USERINFO %s\x01", bot->info);
 867             irc_notice_user(bot, user, response);
 868         } else if (!irccasecmp(text, "VERSION")) {
 869             /* This function provides copyright management information
 870              * to end users of srvx. You should not alter, disable or
 871              * remove this command or its accessibility to normal IRC
 872              * users, except to add copyright information pertaining
 873              * to changes you make to srvx.
 874              */
 875             snprintf(response, sizeof(response), "\x01VERSION %s (%s) %s\x01", PACKAGE_STRING, CODENAME, "");
 876             irc_notice_user(bot, user, response);
 877         }
 878         return;
 879     }
 880
 881     if (service->msg_hook && service->msg_hook(user, bot, text, server_qualified))
 882         return;
 883     svccmd_invoke(user, service, NULL, text, server_qualified);
 884 }
 885
 886 void
 887 modcmd_chanmsg(struct userNode *user, struct chanNode *chan, char *text, struct userNode *bot) {
 888     struct service *service;
 889     if (!(service = dict_find(services, bot->nick, NULL))) return;
 890     svccmd_invoke(user, service, chan, text, 0);
 891 }
 892
 893 struct service *
 894 service_register(struct userNode *bot) {
 895     struct service *service;
 896     if ((service = dict_find(services, bot->nick, NULL)))
 897         return service;
 898     service = calloc(1, sizeof(*service));
 899     module_list_init(&service->modules);
 900     service->commands = dict_new();
 901     service->bot = bot;
 902     dict_set_free_data(service->commands, free_service_command);
 903     dict_insert(services, service->bot->nick, service);
 904     reg_privmsg_func(bot, modcmd_privmsg);
 905     return service;
 906 }
 907
 908 struct service *
 909 service_find(const char *name) {
 910     return dict_find(services, name, NULL);
 911 }
 912
 913 static void
 914 svccmd_insert(struct service *service, char *name, struct svccmd *svccmd, struct modcmd *modcmd) {
 915     unsigned int ii;
 916     svccmd->parent = service;
 917     svccmd->name = name;
 918     svccmd->command = modcmd;
 919     svccmd->command->bind_count++;
 920     dict_insert(service->commands, svccmd->name, svccmd);
 921     for (ii=0; ii<service->modules.used; ++ii) {
 922         if (service->modules.list[ii] == svccmd->command->parent) break;
 923     }
 924     if (ii == service->modules.used) {
 925         module_list_append(&service->modules, svccmd->command->parent);
 926     }
 927 }
 928
 929 struct svccmd *
 930 service_bind_modcmd(struct service *service, struct modcmd *cmd, const char *name) {
 931     struct svccmd *svccmd;
 932     if ((svccmd = dict_find(service->commands, name, NULL))) {
 933         if (svccmd->command == cmd) return svccmd;
 934         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);
 935         return NULL;
 936     }
 937     svccmd = calloc(1, sizeof(*svccmd));
 938     svccmd_insert(service, strdup(name), svccmd, cmd);
 939     svccmd_copy_rules(svccmd, cmd->defaults);
 940     return svccmd;
 941 }
 942
 943 static unsigned int
 944 service_bind_module(struct service *service, struct module *module) {
 945     dict_iterator_t it;
 946     struct modcmd *modcmd;
 947     unsigned int count;
 948
 949     count = 0;
 950     for (it = dict_first(module->commands); it; it = iter_next(it)) {
 951         modcmd = iter_data(it);
 952         if (!((modcmd->flags | modcmd->defaults->flags) & MODCMD_NO_DEFAULT_BIND))
 953             if (service_bind_modcmd(service, modcmd, iter_key(it)))
 954                 count++;
 955     }
 956     return count;
 957 }
 958
 959 /* This MUST return argc if the alias expansion code knows how to deal
 960  * with every argument in argv; otherwise, it MUST return the index of
 961  * an argument that the expansion code does not know how to deal with.
 962  */
 963 static unsigned int
 964 check_alias_args(char *argv[], unsigned int argc) {
 965     unsigned int arg;
 966
 967     for (arg=0; arg<argc; ++arg) {
 968         if (argv[arg][0] != '$') {
 969             continue;
 970         } else if (argv[arg][1] == '$') {
 971             continue;
 972         } else if (isdigit(argv[arg][1])) {
 973             char *end_num;
 974
 975             strtoul(argv[arg]+1, &end_num, 10);
 976             switch (end_num[0]) {
 977             case 0:
 978                 continue;
 979             case '-':
 980                 if (end_num[1] == 0)
 981                     continue;
 982                 else if (isdigit(end_num[1]))
 983                     continue;
 984                 /* else fall through to default case */
 985             default:
 986                 return arg;
 987             }
 988         } else
 989             return arg;
 990     }
 991     return arg;
 992 }
 993
 994 static unsigned int
 995 collapse_cmdname(char *argv[], unsigned int argc, char *dest) {
 996     unsigned int ii, pos, arg;
 997     if (!argc) {
 998         dest[0] = 0;
 999         return 0;
1000     }
1001     for (ii=pos=0, arg=0; argv[arg][ii]; ) {
1002         if (argv[arg][ii] == '\\') {
1003             if (argv[arg][ii+1]) {
1004                 /* escaping a real character just puts it in literally */
1005                 dest[pos++] = argv[arg][++ii];
1006             } else if ((arg+1) == argc) {
1007                 /* we ran to the end of the argument list; abort */
1008                 break;
1009             } else {
1010                 /* escape at end of a word is a space */
1011                 dest[pos++] = ' ';
1012                 ii = 0;
1013                 arg++;
1014             }
1015         } else {
1016             /* normal characters don't need escapes */
1017             dest[pos++] = argv[arg][ii++];
1018         }
1019     }
1020     dest[pos] = 0;
1021     return arg + 1;
1022 }
1023
1024 static MODCMD_FUNC(cmd_bind) {
1025     struct service *service;
1026     struct svccmd *template, *newcmd;
1027     char *svcname, *dot;
1028     char newname[MAXLEN], cmdname[MAXLEN];
1029     unsigned int arg, diff;
1030
1031     assert(argc > 3);
1032     svcname = argv[1];
1033     arg = collapse_cmdname(argv+2, argc-2, newname) + 2;
1034     if (!arg) {
1035         reply("MSG_MISSING_PARAMS", cmd->name);
1036         return 0;
1037     }
1038     diff = collapse_cmdname(argv+arg, argc-arg, cmdname);
1039     if (!diff) {
1040         reply("MSG_MISSING_PARAMS", cmd->name);
1041         return 0;
1042     }
1043     arg += diff;
1044
1045     if (!(service = service_find(svcname))) {
1046         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1047         return 0;
1048     }
1049
1050     if ((newcmd = dict_find(service->commands, newname, NULL))) {
1051         reply("MCMSG_ALREADY_BOUND", service->bot->nick, newname);
1052         return 0;
1053     }
1054
1055     if ((dot = strchr(cmdname, '.')) && (dot[1] == '*') && (dot[2] == 0)) {
1056         unsigned int count;
1057         struct module *module;
1058         *dot = 0;
1059         module = module_find((cmdname[0] == '*') ? cmdname+1 : cmdname);
1060         if (!module) {
1061             reply("MSG_MODULE_UNKNOWN", cmdname);
1062             return 0;
1063         }
1064         count = service_bind_module(service, module);
1065         reply("MCMSG_MODULE_BOUND", count, module->name, service->bot->nick);
1066         return count != 0;
1067     }
1068     newcmd = calloc(1, sizeof(*newcmd));
1069     newcmd->name = strdup(newname);
1070     newcmd->parent = service;
1071     if (!(template = svccmd_resolve_name(newcmd, cmdname))) {
1072         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, service->bot->nick);
1073         free(newcmd->name);
1074         free(newcmd);
1075         return 0;
1076     }
1077     if (template->alias.used) {
1078         reply("MCMSG_CANNOT_DOUBLE_ALIAS");
1079         free(newcmd->name);
1080         free(newcmd);
1081         return 0;
1082     }
1083
1084     if (argc > arg) {
1085         /* a more complicated alias; fix it up */
1086         unsigned int nn;
1087
1088         arg -= diff;
1089         nn = check_alias_args(argv+arg, argc-arg);
1090         if (nn+arg < argc) {
1091             reply("MCMSG_BAD_ALIAS_ARGUMENT", argv[nn+arg]);
1092             free(newcmd->name);
1093             free(newcmd);
1094             return 0;
1095         }
1096         newcmd->alias.used = newcmd->alias.size = argc-arg;
1097         newcmd->alias.list = calloc(newcmd->alias.size, sizeof(newcmd->alias.list[0]));
1098         for (nn=0; nn<newcmd->alias.used; ++nn)
1099             newcmd->alias.list[nn] = strdup(argv[nn+arg]);
1100     }
1101
1102     svccmd_insert(service, newcmd->name, newcmd, template->command);
1103     svccmd_copy_rules(newcmd, template);
1104     reply("MCMSG_COMMAND_BOUND", newcmd->name, newcmd->parent->bot->nick);
1105     return 1;
1106 }
1107
1108 static int
1109 service_recheck_bindings(struct service *service, struct module *module) {
1110     dict_iterator_t it;
1111     struct svccmd *cmd;
1112
1113     for (it = dict_first(service->commands); it; it = iter_next(it)) {
1114         cmd = iter_data(it);
1115         if (cmd->command->parent == module) return 0;
1116     }
1117     /* No more bindings, remove it from our list. */
1118     module_list_remove(&service->modules, module);
1119     return 1;
1120 }
1121
1122 static svccmd_unbind_func_t *suf_list;
1123 unsigned int suf_size, suf_used;
1124
1125 void
1126 reg_svccmd_unbind_func(svccmd_unbind_func_t handler) {
1127     if (suf_used == suf_size) {
1128         if (suf_size) {
1129             suf_size <<= 1;
1130             suf_list = realloc(suf_list, suf_size*sizeof(svccmd_unbind_func_t));
1131         } else {
1132             suf_size = 8;
1133             suf_list = malloc(suf_size*sizeof(svccmd_unbind_func_t));
1134         }
1135     }
1136     suf_list[suf_used++] = handler;
1137 }
1138
1139 static MODCMD_FUNC(cmd_unbind) {
1140     struct service *service;
1141     struct userNode *bot;
1142     struct svccmd *bound;
1143     struct module *module;
1144     const char *svcname;
1145     unsigned int arg, ii;
1146     char cmdname[MAXLEN];
1147
1148     assert(argc > 2);
1149     svcname = argv[1];
1150     arg = collapse_cmdname(argv+2, argc-2, cmdname) + 2;
1151     if (!arg) {
1152         reply("MSG_MISSING_PARAMS", cmd->name);
1153         return 0;
1154     }
1155     if (!(service = service_find(svcname))) {
1156         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1157         return 0;
1158     }
1159     if (!(bound = dict_find(service->commands, cmdname, NULL))) {
1160         reply("MCMSG_NO_COMMAND_BOUND", service->bot->nick, cmdname);
1161         return 0;
1162     }
1163     if ((bound->command->flags & MODCMD_KEEP_BOUND) && (bound->command->bind_count == 1)) {
1164         reply("MCMSG_UNBIND_PROHIBITED", bound->command->name);
1165         return 0;
1166     }
1167
1168     for (ii=0; ii<suf_used; ii++)
1169         suf_list[ii](bound);
1170     /* If this command binding is removing itself, we must take care
1171      * not to dereference it after the dict_remove.
1172      */
1173     bot = cmd->parent->bot;
1174     module = cmd->command->parent;
1175     dict_remove(service->commands, bound->name);
1176     send_message(user, bot, "MCMSG_COMMAND_UNBOUND", cmdname, service->bot->nick);
1177     if (service_recheck_bindings(service, module))
1178         send_message(user, bot, "MCMSG_HELPFILE_UNBOUND", module->name, module->name);
1179     return 1;
1180 }
1181
1182 static MODCMD_FUNC(cmd_readhelp) {
1183     const char *modname;
1184     struct module *module;
1185     struct helpfile *old_helpfile;
1186     struct timeval start, stop;
1187
1188     assert(argc > 1);
1189     modname = argv[1];
1190     if (!(module = module_find(modname))) {
1191         reply("MSG_MODULE_UNKNOWN", modname);
1192         return 0;
1193     }
1194     if (!module->helpfile_name) {
1195         reply("MCMSG_NO_HELPFILE", module->name);
1196         return 0;
1197     }
1198     old_helpfile = module->helpfile;
1199     gettimeofday(&start, NULL);
1200     module->helpfile = open_helpfile(module->helpfile_name, module->expand_help);
1201     if (!module->helpfile) {
1202         module->helpfile = old_helpfile;
1203         reply("MCMSG_HELPFILE_ERROR", module->helpfile_name);
1204         return 0;
1205     }
1206     if (old_helpfile) close_helpfile(old_helpfile);
1207     gettimeofday(&stop, NULL);
1208     stop.tv_sec -= start.tv_sec;
1209     stop.tv_usec -= start.tv_usec;
1210     if (stop.tv_usec < 0) {
1211         stop.tv_sec -= 1;
1212         stop.tv_usec += 1000000;
1213     }
1214     reply("MCMSG_HELPFILE_READ", module->name, stop.tv_sec, stop.tv_usec/1000);
1215     return 1;
1216 }
1217
1218 static MODCMD_FUNC(cmd_help) {
1219     const char *topic;
1220
1221     topic = (argc < 2) ? NULL : unsplit_string(argv+1, argc-1, NULL);
1222     return svccmd_send_help_2(user, cmd->parent, topic);
1223 }
1224
1225 static MODCMD_FUNC(cmd_timecmd) {
1226     struct timeval start, stop;
1227     char cmd_text[MAXLEN];
1228
1229     unsplit_string(argv+1, argc-1, cmd_text);
1230     gettimeofday(&start, NULL);
1231     svccmd_invoke(user, cmd->parent, channel, cmd_text, 0);
1232     gettimeofday(&stop, NULL);
1233     stop.tv_sec -= start.tv_sec;
1234     stop.tv_usec -= start.tv_usec;
1235     if (stop.tv_usec < 0) {
1236         stop.tv_sec -= 1;
1237         stop.tv_usec += 1000000;
1238     }
1239     reply("MCMSG_COMMAND_TIME", cmd_text, stop.tv_sec, stop.tv_usec);
1240     return 1;
1241 }
1242
1243 static MODCMD_FUNC(cmd_command) {
1244     struct svccmd *svccmd;
1245     const char *cmd_name, *fmt_str;
1246     unsigned int flags, shown_flags, nn, pos;
1247     char buf[MAXLEN];
1248
1249     assert(argc >= 2);
1250     cmd_name = unsplit_string(argv+1, argc-1, NULL);
1251     if (!(svccmd = svccmd_resolve_name(cmd, cmd_name))) {
1252         reply("MCMSG_UNKNOWN_COMMAND_2", cmd_name, cmd->parent->bot->nick);
1253         return 0;
1254     }
1255     pos = snprintf(buf, sizeof(buf), "%s.%s", svccmd->command->parent->name, svccmd->command->name);
1256     if (svccmd->alias.used) {
1257         buf[pos++] = ' ';
1258         unsplit_string((char**)svccmd->alias.list+1, svccmd->alias.used-1, buf+pos);
1259         reply("MCMSG_COMMAND_ALIASES", svccmd->name, buf);
1260     } else {
1261         reply("MCMSG_COMMAND_BINDING", svccmd->name, buf);
1262     }
1263     flags = svccmd->effective_flags;
1264     if ((svccmd->parent && svccmd->parent->privileged && !IsOper(user))
1265         || ((flags & MODCMD_REQUIRE_STAFF)
1266             && !IsOper(user) && !IsNetworkHelper(user) && !IsSupportHelper(user))) {
1267         reply("MCMSG_INSPECTION_REFUSED", svccmd->name);
1268         return 0;
1269     }
1270     if (flags & MODCMD_DISABLED) {
1271         reply("MSG_COMMAND_DISABLED", svccmd->name);
1272         return 1;
1273     }
1274     shown_flags = 0;
1275     if (svccmd->min_opserv_level > 0) {
1276         reply("MCMSG_NEED_OPSERV_LEVEL", svccmd->min_opserv_level);
1277         shown_flags |= MODCMD_REQUIRE_OPER | MODCMD_REQUIRE_AUTHED;
1278     }
1279     if (svccmd->min_channel_access > 0) {
1280         reply("MCMSG_NEED_CHANSERV_LEVEL", svccmd->min_channel_access);
1281         shown_flags |= MODCMD_REQUIRE_CHANUSER | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1282     }
1283     if (svccmd->req_account_flags) {
1284         for (nn=pos=0; nn<32; nn++) {
1285             if (!(svccmd->req_account_flags & (1 << nn))) continue;
1286             buf[pos++] = HANDLE_FLAGS[nn];
1287         }
1288         buf[pos] = 0;
1289         reply("MCMSG_NEED_ACCOUNT_FLAGS", buf);
1290         shown_flags |= MODCMD_REQUIRE_AUTHED;
1291     }
1292     if (!flags && !shown_flags) {
1293         reply("MCMSG_NEED_NOTHING", svccmd->name);
1294         return 1;
1295     }
1296     if (flags & ~shown_flags & MODCMD_REQUIRE_HELPING) {
1297         reply("MCMSG_MUST_BE_HELPING");
1298         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1299     }
1300     if (flags & ~shown_flags & MODCMD_REQUIRE_STAFF) {
1301         switch (flags & MODCMD_REQUIRE_STAFF) {
1302         default: case MODCMD_REQUIRE_STAFF:
1303             fmt_str = "MCMSG_NEED_STAFF_ACCESS";
1304             break;
1305         case MODCMD_REQUIRE_OPER:
1306             fmt_str = "MCMSG_NEED_STAFF_OPER";
1307             break;
1308         case MODCMD_REQUIRE_NETWORK_HELPER:
1309             fmt_str = "MCMSG_NEED_STAFF_NETHELPER";
1310             break;
1311         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_NETWORK_HELPER:
1312             fmt_str = "MCMSG_NEED_STAFF_NETHELPER_OR_OPER";
1313             break;
1314         case MODCMD_REQUIRE_SUPPORT_HELPER:
1315             fmt_str = "MCMSG_NEED_STAFF_SHELPER";
1316             break;
1317         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_SUPPORT_HELPER:
1318             fmt_str = "MCMSG_NEED_STAFF_SHELPER_OR_OPER";
1319             break;
1320         case MODCMD_REQUIRE_SUPPORT_HELPER|MODCMD_REQUIRE_NETWORK_HELPER:
1321             fmt_str = "MCMSG_NEED_STAFF_HELPER";
1322             break;
1323         }
1324         reply(fmt_str);
1325         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1326     }
1327     if (flags & ~shown_flags & MODCMD_REQUIRE_JOINABLE) {
1328         reply("MCMSG_NEED_JOINABLE");
1329         shown_flags |= MODCMD_REQUIRE_CHANUSER;
1330     }
1331     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANUSER) {
1332         if (flags & ~shown_flags & MODCMD_IGNORE_CSUSPEND)
1333             reply("MCMSG_NEED_CHANUSER_CSUSPENDABLE");
1334         else
1335             reply("MCMSG_NEED_CHANUSER");
1336         shown_flags |= MODCMD_IGNORE_CSUSPEND | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1337     }
1338     if (flags & ~shown_flags & MODCMD_REQUIRE_REGCHAN) {
1339         reply("MCMSG_NEED_REGCHAN");
1340         shown_flags |= MODCMD_REQUIRE_CHANNEL;
1341     }
1342     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANNEL)
1343         reply("MCMSG_NEED_CHANNEL");
1344     if (flags & ~shown_flags & MODCMD_REQUIRE_AUTHED)
1345         reply("MCMSG_NEED_AUTHED");
1346     if (flags & ~shown_flags & MODCMD_TOY)
1347         reply("MCMSG_IS_TOY", svccmd->name);
1348     if (flags & ~shown_flags & MODCMD_REQUIRE_QUALIFIED) {
1349         const char *botnick = svccmd->parent ? svccmd->parent->bot->nick : "SomeBot";
1350         reply("MCMSG_MUST_QUALIFY", botnick, svccmd->name, botnick);
1351     }
1352     reply("MCMSG_END_REQUIREMENTS", svccmd->name);
1353     return 1;
1354 }
1355
1356 static void
1357 modcmd_describe_command(struct userNode *user, struct svccmd *cmd, struct svccmd *target) {
1358     char buf1[MAXLEN], buf2[MAXLEN];
1359     unsigned int ii, len, buf1_used, buf2_used;
1360
1361     if (target->alias.used) {
1362         unsplit_string((char**)target->alias.list, target->alias.used, buf1);
1363         reply("MCMSG_COMMAND_ALIASES", target->name, buf1);
1364     } else {
1365         snprintf(buf1, sizeof(buf1), "%s.%s", target->command->parent->name, target->command->name);
1366         reply("MCMSG_COMMAND_BINDING", target->name, buf1);
1367     }
1368     for (ii = buf1_used = buf2_used = 0; flags[ii].name; ++ii) {
1369         if (target->flags & flags[ii].flag) {
1370             if (buf1_used)
1371                 buf1[buf1_used++] = ',';
1372             len = strlen(flags[ii].name);
1373             memcpy(buf1 + buf1_used, flags[ii].name, len);
1374             buf1_used += len;
1375         } else if (target->effective_flags & flags[ii].flag) {
1376             if (buf2_used)
1377                 buf2[buf2_used++] = ',';
1378             len = strlen(flags[ii].name);
1379             memcpy(buf2 + buf2_used, flags[ii].name, len);
1380             buf2_used += len;
1381         }
1382     }
1383     if (buf1_used)
1384         buf1[buf1_used] = '\0';
1385     else
1386         strcpy(buf1, user_find_message(user, "MSG_NONE"));
1387     if (buf2_used)
1388         buf2[buf2_used] = '\0';
1389     else
1390         strcpy(buf2, user_find_message(user, "MSG_NONE"));
1391     reply("MCMSG_COMMAND_FLAGS", buf1, buf2);
1392     for (ii = buf1_used = buf2_used = 0; handle_flags[ii]; ++ii) {
1393         if (target->req_account_flags & (1 << ii))
1394             buf1[buf1_used++] = handle_flags[ii];
1395         else if (target->deny_account_flags & (1 << ii))
1396             buf2[buf2_used++] = handle_flags[ii];
1397     }
1398     buf1[buf1_used] = buf2[buf2_used] = '\0';
1399     reply("MCMSG_COMMAND_ACCOUNT_FLAGS", buf1, buf2);
1400     reply("MCMSG_COMMAND_ACCESS_LEVEL", target->min_channel_access, target->min_opserv_level);
1401     reply("MCMSG_COMMAND_USES", target->name, target->uses);
1402 }
1403
1404 static MODCMD_FUNC(cmd_modcmd) {
1405     struct svccmd *svccmd;
1406     unsigned int arg, changed;
1407     char cmdname[MAXLEN];
1408
1409     assert(argc >= 2);
1410     arg = collapse_cmdname(argv+1, argc-1, cmdname) + 1;
1411     if (!arg) {
1412         reply("MSG_MISSING_PARAMS", cmd->name);
1413         return 0;
1414     }
1415     if (!(svccmd = svccmd_resolve_name(cmd, cmdname))) {
1416         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, cmd->parent->bot->nick);
1417         return 0;
1418     }
1419     for (changed = 0; arg+1 < argc; arg += 2) {
1420         if (svccmd_configure(svccmd, user, cmd->parent->bot, argv[arg], argv[arg+1])) {
1421             reply("MCMSG_COMMAND_MODIFIED", argv[arg], svccmd->name);
1422             changed = 1;
1423         }
1424     }
1425     if (changed)
1426         modcmd_set_effective_flags(svccmd);
1427     modcmd_describe_command(user, cmd, svccmd);
1428     return changed;
1429 }
1430
1431 static MODCMD_FUNC(cmd_god) {
1432     int helping;
1433
1434     if (argc > 1) {
1435         if (enabled_string(argv[1])) {
1436             if (HANDLE_FLAGGED(user->handle_info, HELPING)) {
1437                 reply("MCMSG_ALREADY_HELPING");
1438                 return 0;
1439             }
1440             helping = 1;
1441         } else if (disabled_string(argv[1])) {
1442             if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
1443                 reply("MCMSG_ALREADY_NOT_HELPING");
1444                 return 0;
1445             }
1446             helping = 0;
1447         } else {
1448             reply("MSG_INVALID_BINARY", argv[1]);
1449             return 0;
1450         }
1451     } else {
1452         helping = !IsHelping(user);
1453     }
1454
1455     if (helping) {
1456         HANDLE_SET_FLAG(user->handle_info, HELPING);
1457         reply("MCMSG_NOW_HELPING");
1458     } else {
1459         HANDLE_CLEAR_FLAG(user->handle_info, HELPING);
1460         reply("MCMSG_NOW_NOT_HELPING");
1461     }
1462
1463     return 1;
1464 }
1465
1466 static MODCMD_FUNC(cmd_joiner) {
1467     char cmdname[80];
1468
1469     if (argc < 2) {
1470         int len = sprintf(cmdname, "%s ", cmd->name);
1471         dict_iterator_t it;
1472         struct string_buffer sbuf;
1473
1474         string_buffer_init(&sbuf);
1475         for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1476             if (!ircncasecmp(iter_key(it), cmdname, len)) {
1477                 if (sbuf.used) string_buffer_append_string(&sbuf, ", ");
1478                 string_buffer_append_string(&sbuf, iter_key(it));
1479             }
1480         }
1481         if (!sbuf.used) string_buffer_append(&sbuf, 0);
1482         reply("MCMSG_JOINER_CHOICES", cmd->name, sbuf.list);
1483         string_buffer_clean(&sbuf);
1484         return 1;
1485     }
1486     sprintf(cmdname, "%s %s", cmd->name, argv[1]);
1487     argv[1] = cmdname;
1488     svccmd_invoke_argv(user, cmd->parent, channel, argc-1, argv+1, 0);
1489     return 0; /* never try to log this; the recursive one logs it */
1490 }
1491
1492 static MODCMD_FUNC(cmd_stats_modules) {
1493     struct helpfile_table tbl;
1494     dict_iterator_t it;
1495     unsigned int ii;
1496     struct module *mod;
1497     struct modcmd *modcmd;
1498
1499     if (argc < 2) {
1500         tbl.length = dict_size(modules) + 1;
1501         tbl.width = 3;
1502         tbl.flags = TABLE_PAD_LEFT;
1503         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1504         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1505         tbl.contents[0][0] = "Module";
1506         tbl.contents[0][1] = "Commands";
1507         tbl.contents[0][2] = "Helpfile";
1508         for (ii=1, it=dict_first(modules); it; it=iter_next(it), ii++) {
1509             mod = iter_data(it);
1510             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1511             tbl.contents[ii][0] = mod->name;
1512             tbl.contents[ii][1] = strtab(dict_size(mod->commands));
1513             tbl.contents[ii][2] = mod->helpfile_name ? mod->helpfile_name : "(none)";
1514         }
1515     } else if (!(mod = dict_find(modules, argv[1], NULL))) {
1516         reply("MCMSG_UNKNOWN_MODULE", argv[1]);
1517         return 0;
1518     } else {
1519         reply("MCMSG_MODULE_INFO", mod->name);
1520         tbl.length = dict_size(mod->commands) + 1;
1521         tbl.width = 3;
1522         tbl.flags = TABLE_PAD_LEFT;
1523         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1524         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1525         tbl.contents[0][0] = "Command";
1526         tbl.contents[0][1] = "Min. Args";
1527         tbl.contents[0][2] = "Bind Count";
1528         for (ii=1, it=dict_first(mod->commands); it; it=iter_next(it), ii++) {
1529             modcmd = iter_data(it);
1530             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1531             tbl.contents[ii][0] = modcmd->name;
1532             tbl.contents[ii][1] = strtab(modcmd->min_argc);
1533             tbl.contents[ii][2] = strtab(modcmd->bind_count);
1534         }
1535     }
1536     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1537     return 0;
1538 }
1539
1540 static MODCMD_FUNC(cmd_stats_services) {
1541     struct helpfile_table tbl;
1542     dict_iterator_t it;
1543     unsigned int ii;
1544     struct service *service;
1545     struct svccmd *svccmd;
1546     char *extra;
1547
1548     if (argc < 2) {
1549         tbl.length = dict_size(services) + 1;
1550         tbl.width = 4;
1551         tbl.flags = TABLE_PAD_LEFT;
1552         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1553         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1554         tbl.contents[0][0] = "Service";
1555         tbl.contents[0][1] = "Commands";
1556         tbl.contents[0][2] = "Priv'd?";
1557         tbl.contents[0][3] = "Trigger";
1558         extra = calloc(2, tbl.length);
1559         for (ii=1, it=dict_first(services); it; it=iter_next(it), ii++) {
1560             service = iter_data(it);
1561             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1562             tbl.contents[ii][0] = service->bot->nick;
1563             tbl.contents[ii][1] = strtab(dict_size(service->commands));
1564             tbl.contents[ii][2] = service->privileged ? "yes" : "no";
1565             extra[ii*2] = service->trigger;
1566             tbl.contents[ii][3] = extra+ii*2;
1567         }
1568         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1569         free(extra);
1570         return 0;
1571     } else if (!(service = dict_find(services, argv[1], NULL))) {
1572         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1573         return 0;
1574     } else {
1575         tbl.length = dict_size(service->commands) + 1;
1576         tbl.width = 5;
1577         tbl.flags = TABLE_PAD_LEFT | TABLE_NO_FREE;
1578         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1579         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1580         tbl.contents[0][0] = "Command";
1581         tbl.contents[0][1] = "Module";
1582         tbl.contents[0][2] = "ModCmd";
1583         tbl.contents[0][3] = "Alias?";
1584         tbl.contents[0][4] = strdup("Uses");
1585         for (ii=1, it=dict_first(service->commands); it; it=iter_next(it), ii++) {
1586             svccmd = iter_data(it);
1587             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1588             tbl.contents[ii][0] = svccmd->name;
1589             tbl.contents[ii][1] = svccmd->command->parent->name;
1590             tbl.contents[ii][2] = svccmd->command->name;
1591             tbl.contents[ii][3] = svccmd->alias.used ? "yes" : "no";
1592             tbl.contents[ii][4] = extra = malloc(12);
1593             sprintf(extra, "%u", svccmd->uses);
1594         }
1595         reply("MCMSG_SERVICE_INFO", service->bot->nick);
1596         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1597         for (ii=0; ii<tbl.length; ii++) {
1598             free((char*)tbl.contents[ii][4]);
1599             free(tbl.contents[ii]);
1600         }
1601         free(tbl.contents);
1602         return 0;
1603     }
1604 }
1605
1606 static MODCMD_FUNC(cmd_showcommands) {
1607     struct svccmd_list commands;
1608     struct helpfile_table tbl;
1609     struct svccmd *svccmd;
1610     dict_iterator_t it;
1611     unsigned int ii, ignore_flags = 0;
1612     unsigned int max_opserv_level = 1000;
1613     unsigned short max_chanserv_level = 500;
1614     char show_opserv_level = 0, show_channel_access = 0;
1615
1616     /* Check to see what the max access they want to see is. */
1617     for (ii=1; ii<argc; ++ii) {
1618         if (isdigit(argv[ii][0]))
1619             max_opserv_level = atoi(argv[ii]);
1620         else
1621             max_chanserv_level = user_level_from_name(argv[ii], UL_OWNER);
1622     }
1623
1624     /* Find the matching commands. */
1625     svccmd_list_init(&commands);
1626     if (cmd->parent->privileged)
1627         ignore_flags = MODCMD_REQUIRE_OPER;
1628     for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1629         svccmd = iter_data(it);
1630         if (strchr(svccmd->name, ' '))
1631             continue;
1632         if (!svccmd_can_invoke(user, svccmd->parent->bot, svccmd, channel, SVCCMD_QUALIFIED))
1633             continue;
1634         if (svccmd->min_opserv_level > max_opserv_level)
1635             continue;
1636         if (svccmd->min_channel_access > max_chanserv_level)
1637             continue;
1638         if (svccmd->min_opserv_level > 0)
1639             show_opserv_level = 1;
1640         if (svccmd->min_channel_access > 0)
1641             show_channel_access = 1;
1642         if (svccmd->effective_flags
1643             & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING)
1644             & ~ignore_flags) {
1645             show_channel_access = 1;
1646         }
1647         svccmd_list_append(&commands, svccmd);
1648     }
1649
1650     /* Build the table. */
1651     tbl.length = commands.used + 1;
1652     tbl.width = 1 + show_opserv_level + show_channel_access;
1653     tbl.flags = TABLE_REPEAT_ROWS;
1654     tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1655     tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1656     tbl.contents[0][ii = 0] = "Command";
1657     if (show_opserv_level)
1658         tbl.contents[0][++ii] = "OpServ Level";
1659     if (show_channel_access)
1660         tbl.contents[0][++ii] = "ChanServ Access";
1661     for (ii=0; ii<commands.used; ++ii) {
1662         svccmd = commands.list[ii];
1663         tbl.contents[ii+1] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1664         tbl.contents[ii+1][0] = svccmd->name;
1665         if (show_opserv_level)
1666             tbl.contents[ii+1][1] = strtab(svccmd->min_opserv_level);
1667         if (show_channel_access) {
1668             const char *access;
1669             int flags = svccmd->effective_flags;
1670             if (flags & MODCMD_REQUIRE_HELPING)
1671                 access = "helping";
1672             else if (flags & MODCMD_REQUIRE_STAFF) {
1673                 switch (flags & MODCMD_REQUIRE_STAFF) {
1674                 case MODCMD_REQUIRE_OPER: access = "oper"; break;
1675                 case MODCMD_REQUIRE_OPER | MODCMD_REQUIRE_NETWORK_HELPER:
1676                 case MODCMD_REQUIRE_NETWORK_HELPER: access = "net.helper"; break;
1677                 default: access = "staff"; break;
1678                 }
1679             } else
1680                 access = strtab(svccmd->min_channel_access);
1681             tbl.contents[ii+1][1+show_opserv_level] = access;
1682         }
1683     }
1684     svccmd_list_clean(&commands);
1685     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1686     return 0;
1687 }
1688
1689 static MODCMD_FUNC(cmd_helpfiles) {
1690     struct service *service;
1691     unsigned int ii;
1692
1693     if (!(service = dict_find(services, argv[1], NULL))) {
1694         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1695         return 0;
1696     }
1697
1698     if (argc < 3) {
1699         for (ii=0; ii<service->modules.used; ++ii)
1700             reply("MCMSG_HELPFILE_SEQUENCE", ii+1, service->modules.list[ii]->name);
1701         return 0;
1702     }
1703
1704     service->modules.used = 0;
1705     for (ii=0; ii<argc-2; ii++) {
1706         struct module *module = dict_find(modules, argv[ii+2], NULL);
1707         if (!module) {
1708             reply("MCMSG_UNKNOWN_MODULE", argv[ii+2]);
1709             continue;
1710         }
1711         module_list_append(&service->modules, module);
1712     }
1713     reply("MCMSG_HELPFILE_SEQUENCE_SET", service->bot->nick);
1714     return 1;
1715 }
1716
1717 static MODCMD_FUNC(cmd_service_add) {
1718     const char *nick, *hostname, *desc;
1719     struct userNode *bot;
1720
1721     nick = argv[1];
1722     if (!is_valid_nick(nick)) {
1723         reply("MCMSG_BAD_SERVICE_NICK", nick);
1724         return 0;
1725     }
1726     hostname = argv[2];
1727     desc = unsplit_string(argv+3, argc-3, NULL);
1728     bot = GetUserH(nick);
1729     if (bot && IsService(bot)) {
1730         reply("MCMSG_ALREADY_SERVICE", bot->nick);
1731         return 0;
1732     }
1733     bot = AddService(nick, desc, hostname);
1734     service_register(bot);
1735     reply("MCMSG_NEW_SERVICE", bot->nick);
1736     return 1;
1737 }
1738
1739 static MODCMD_FUNC(cmd_service_rename) {
1740     struct service *service;
1741
1742     if (!(service = service_find(argv[1]))) {
1743         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1744         return 0;
1745     }
1746     NickChange(service->bot, argv[2], 0);
1747     reply("MCMSG_SERVICE_RENAMED", service->bot->nick);
1748     return 1;
1749 }
1750
1751 static MODCMD_FUNC(cmd_service_trigger) {
1752     struct userNode *bogon;
1753     struct service *service;
1754
1755     if (!(service = service_find(argv[1]))) {
1756         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1757         return 0;
1758     }
1759     if (argc < 3) {
1760         if (service->trigger)
1761             reply("MCMSG_CURRENT_TRIGGER", service->bot->nick, service->trigger);
1762         else
1763             reply("MCMSG_NO_TRIGGER", service->bot->nick);
1764         return 1;
1765     }
1766     if (service->trigger)
1767         reg_chanmsg_func(service->trigger, NULL, NULL);
1768     if (!irccasecmp(argv[2], "none") || !irccasecmp(argv[2], "remove")) {
1769         service->trigger = 0;
1770         reply("MCMSG_REMOVED_TRIGGER", service->bot->nick);
1771     } else if ((bogon = get_chanmsg_bot(argv[2][0]))) {
1772         reply("MCMSG_DUPLICATE_TRIGGER", bogon->nick, argv[2][0]);
1773         return 1;
1774     } else {
1775         service->trigger = argv[2][0];
1776         reg_chanmsg_func(service->trigger, service->bot, modcmd_chanmsg);
1777         reply("MCMSG_NEW_TRIGGER", service->bot->nick, service->trigger);
1778     }
1779     return 1;
1780 }
1781
1782 static MODCMD_FUNC(cmd_service_privileged) {
1783     struct service *service;
1784     const char *newval;
1785
1786     if (!(service = service_find(argv[1]))) {
1787         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1788         return 0;
1789     }
1790     if (argc >= 3)
1791         service->privileged = true_string(argv[2]) || enabled_string(argv[2]);
1792     newval = user_find_message(user, service->privileged ? "MSG_ON" : "MSG_OFF");
1793     reply("MCMSG_SERVICE_PRIVILEGED", service->bot->nick, newval);
1794     return 1;
1795 }
1796
1797 static MODCMD_FUNC(cmd_service_remove) {
1798     char *name, *reason;
1799     struct service *service;
1800
1801     name = argv[1];
1802     if (argc > 2)
1803         reason = unsplit_string(argv+2, argc-2, NULL);
1804     else
1805         reason = "Removing bot";
1806     if (!(service = service_find(name))) {
1807         reply("MCMSG_UNKNOWN_SERVICE", name);
1808         return 0;
1809     }
1810     DelUser(service->bot, NULL, 1, reason);
1811     reply("MCMSG_SERVICE_REMOVED", name);
1812     dict_remove(services, name);
1813     return 1;
1814 }
1815
1816 static MODCMD_FUNC(cmd_dump_messages) {
1817     const char *fname = "strings.db";
1818     struct saxdb_context *ctx;
1819     dict_iterator_t it;
1820     FILE *pf;
1821     int res;
1822
1823     if (!(pf = fopen(fname, "w"))) {
1824         reply("MCMSG_FILE_NOT_OPENED", fname);
1825         return 0;
1826     }
1827     if (!(ctx = saxdb_open_context(pf))) {
1828         reply("MSG_INTERNAL_FAILURE");
1829         return 0;
1830     }
1831     if ((res = setjmp(ctx->jbuf)) != 0) {
1832         ctx->complex.used = 0; /* to avoid false assert()s in close */
1833         saxdb_close_context(ctx);
1834         fclose(pf);
1835         reply("MCMSG_MESSAGE_DUMP_FAILED", strerror(res));
1836         return 0;
1837     } else {
1838         for (it = dict_first(lang_C->messages); it; it = iter_next(it))
1839             saxdb_write_string(ctx, iter_key(it), iter_data(it));
1840         saxdb_close_context(ctx);
1841         fclose(pf);
1842         reply("MCMSG_MESSAGES_DUMPED", fname);
1843         return 1;
1844     }
1845 }
1846
1847 static MODCMD_FUNC(cmd_version) {
1848     /* This function provides copyright management information to end
1849      * users of srvx. You should not alter, disable or remove this
1850      * command or its accessibility to normal IRC users, except to add
1851      * copyright information pertaining to changes you make to srvx.
1852      */
1853     send_message_type(4, user, cmd->parent->bot, "$b"PACKAGE_STRING"$b ("CODENAME"), Built: "__DATE__", "__TIME__".\nCopyright 2000-2004 srvx Development Team.\nThe srvx Development Team includes Paul Chang, Adrian Dewhurst, Miles Peterson, Michael Poole and others.\nThe srvx Development Team can be reached at http://sf.net/projects/srvx/ or in #srvx on irc.gamesurge.net.");
1854     if ((argc > 1) && !irccasecmp(argv[1], "arch"))
1855         send_message_type(4, user, cmd->parent->bot, "%s", "");
1856     return 1;
1857 }
1858
1859
1860 void
1861 modcmd_nick_change(struct userNode *user, const char *old_nick) {
1862     struct service *svc;
1863     if (!(svc = dict_find(services, old_nick, NULL)))
1864         return;
1865     dict_remove2(services, old_nick, 1);
1866     dict_insert(services, user->nick, svc);
1867 }
1868
1869 void
1870 modcmd_cleanup(void) {
1871     dict_delete(services);
1872     dict_delete(modules);
1873     if (suf_list)
1874         free(suf_list);
1875 }
1876
1877 static void
1878 modcmd_saxdb_write_command(struct saxdb_context *ctx, struct svccmd *cmd) {
1879     char buf[MAXLEN];
1880     unsigned int nn, len, pos;
1881     struct svccmd *template = cmd->command->defaults;
1882
1883     saxdb_start_record(ctx, cmd->name, 0);
1884     sprintf(buf, "%s.%s", cmd->command->parent->name, cmd->command->name);
1885     saxdb_write_string(ctx, "command", buf);
1886     if (cmd->alias.used)
1887         saxdb_write_string_list(ctx, "aliased", &cmd->alias);
1888     if (cmd->min_opserv_level != template->min_opserv_level)
1889         saxdb_write_int(ctx, "oper_access", cmd->min_opserv_level);
1890     if (cmd->min_channel_access != template->min_channel_access)
1891         saxdb_write_int(ctx, "channel_access", cmd->min_channel_access);
1892     if (cmd->flags != template->flags) {
1893         if (cmd->flags) {
1894             for (nn=pos=0; flags[nn].name; ++nn) {
1895                 if (cmd->flags & flags[nn].flag) {
1896                     buf[pos++] = '+';
1897                     len = strlen(flags[nn].name);
1898                     memcpy(buf+pos, flags[nn].name, len);
1899                     pos += len;
1900                     buf[pos++] = ',';
1901                 }
1902             }
1903         } else {
1904             pos = 1;
1905         }
1906         buf[--pos] = 0;
1907         saxdb_write_string(ctx, "flags", buf);
1908     }
1909     if ((cmd->req_account_flags != template->req_account_flags)
1910         || (cmd->deny_account_flags != template->req_account_flags)) {
1911         pos = 0;
1912         if (cmd->req_account_flags) {
1913             buf[pos++] = '+';
1914             for (nn=0; nn<32; nn++)
1915                 if (cmd->req_account_flags & (1 << nn))
1916                     buf[pos++] = handle_flags[nn];
1917         }
1918         if (cmd->deny_account_flags) {
1919             buf[pos++] = '-';
1920             for (nn=0; nn<32; nn++)
1921                 if (cmd->deny_account_flags & (1 << nn))
1922                     buf[pos++] = handle_flags[nn];
1923         }
1924         buf[pos] = 0;
1925         saxdb_write_string(ctx, "account_flags", buf);
1926     }
1927     saxdb_end_record(ctx);
1928 }
1929
1930 static int
1931 modcmd_saxdb_write(struct saxdb_context *ctx) {
1932     struct string_list slist;
1933     dict_iterator_t it, it2;
1934     struct service *service;
1935     unsigned int ii;
1936
1937     saxdb_start_record(ctx, "bots", 1);
1938     for (it = dict_first(services); it; it = iter_next(it)) {
1939         char buff[16];
1940         service = iter_data(it);
1941         saxdb_start_record(ctx, service->bot->nick, 1);
1942         if (service->trigger) {
1943             buff[0] = service->trigger;
1944             buff[1] = '\0';
1945             saxdb_write_string(ctx, "trigger", buff);
1946         }
1947         saxdb_write_string(ctx, "description", service->bot->info);
1948         saxdb_write_string(ctx, "hostname", service->bot->hostname);
1949         if (service->privileged)
1950             saxdb_write_string(ctx, "privileged", "1");
1951         saxdb_end_record(ctx);
1952     }
1953     saxdb_end_record(ctx);
1954
1955     saxdb_start_record(ctx, "services", 1);
1956     for (it = dict_first(services); it; it = iter_next(it)) {
1957         service = iter_data(it);
1958         saxdb_start_record(ctx, service->bot->nick, 1);
1959         for (it2 = dict_first(service->commands); it2; it2 = iter_next(it2))
1960             modcmd_saxdb_write_command(ctx, iter_data(it2));
1961         saxdb_end_record(ctx);
1962     }
1963     saxdb_end_record(ctx);
1964
1965     saxdb_start_record(ctx, "helpfiles", 1);
1966     slist.size = 0;
1967     for (it = dict_first(services); it; it = iter_next(it)) {
1968         service = iter_data(it);
1969         slist.used = 0;
1970         for (ii = 0; ii < service->modules.used; ++ii)
1971             string_list_append(&slist, service->modules.list[ii]->name);
1972         saxdb_write_string_list(ctx, iter_key(it), &slist);
1973     }
1974     if (slist.list)
1975         free(slist.list);
1976     saxdb_end_record(ctx);
1977
1978     return 0;
1979 }
1980
1981 static int
1982 append_entry(const char *key, UNUSED_ARG(void *data), void *extra) {
1983     struct helpfile_expansion *exp = extra;
1984     int row = exp->value.table.length++;
1985     exp->value.table.contents[row] = calloc(1, sizeof(char*));
1986     exp->value.table.contents[row][0] = key;
1987     return 0;
1988 }
1989
1990 static struct helpfile_expansion
1991 modcmd_expand(const char *variable) {
1992     struct helpfile_expansion exp;
1993     extern struct userNode *message_source;
1994     struct service *service;
1995
1996     service = dict_find(services, message_source->nick, NULL);
1997     if (!irccasecmp(variable, "index")) {
1998         exp.type = HF_TABLE;
1999         exp.value.table.length = 1;
2000         exp.value.table.width = 1;
2001         exp.value.table.flags = TABLE_REPEAT_ROWS;
2002         exp.value.table.contents = calloc(dict_size(service->commands)+1, sizeof(char**));
2003         exp.value.table.contents[0] = calloc(1, sizeof(char*));
2004         exp.value.table.contents[0][0] = "Commands:";
2005         dict_foreach(service->commands, append_entry, &exp);
2006         return exp;
2007     } else if (!irccasecmp(variable, "languages")) {
2008         struct string_buffer sbuf;
2009         dict_iterator_t it;
2010         sbuf.used = sbuf.size = 0;
2011         sbuf.list = NULL;
2012         for (it = dict_first(languages); it; it = iter_next(it)) {
2013             string_buffer_append_string(&sbuf, iter_key(it));
2014             string_buffer_append(&sbuf, ' ');
2015         }
2016         sbuf.list[--sbuf.used] = 0;
2017         exp.type = HF_STRING;
2018         exp.value.str = sbuf.list;
2019         return exp;
2020     }
2021     exp.type = HF_STRING;
2022     exp.value.str = NULL;
2023     return exp;
2024 }
2025
2026 static void
2027 modcmd_load_bots(struct dict *db, int default_nick) {
2028     dict_iterator_t it;
2029
2030     for (it = dict_first(db); it; it = iter_next(it)) {
2031         struct record_data *rd;
2032         struct service *svc;
2033         const char *nick, *desc, *hostname;
2034
2035         rd = iter_data(it);
2036         if (rd->type != RECDB_OBJECT) {
2037             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'bots/%s' in modcmd db (expected object).", iter_key(it));
2038             continue;
2039         }
2040         nick = database_get_data(rd->d.object, "nick", RECDB_QSTRING);
2041         if (!nick) {
2042             if (default_nick)
2043                 nick = iter_key(it);
2044             else
2045                 continue;
2046         }
2047         svc = service_find(nick);
2048         desc = database_get_data(rd->d.object, "description", RECDB_QSTRING);
2049         hostname = database_get_data(rd->d.object, "hostname", RECDB_QSTRING);
2050         if (desc) {
2051             if (!svc)
2052                 svc = service_register(AddService(nick, desc, hostname));
2053             else if (hostname)
2054                 strcpy(svc->bot->hostname, hostname);
2055             desc = database_get_data(rd->d.object, "trigger", RECDB_QSTRING);
2056             if (desc)
2057                 svc->trigger = desc[0];
2058             desc = database_get_data(rd->d.object, "privileged", RECDB_QSTRING);
2059             if (desc && (true_string(desc) || enabled_string(desc)))
2060                 svc->privileged = 1;
2061         }
2062     }
2063 }
2064
2065 static void
2066 modcmd_conf_read(void) {
2067     modcmd_load_bots(conf_get_data("services", RECDB_OBJECT), 0);
2068 }
2069
2070 void
2071 modcmd_init(void) {
2072     qsort(flags, ArrayLength(flags)-1, sizeof(flags[0]), flags_qsort);
2073     modules = dict_new();
2074     dict_set_free_data(modules, free_module);
2075     services = dict_new();
2076     dict_set_free_data(services, free_service);
2077     reg_nick_change_func(modcmd_nick_change);
2078     reg_exit_func(modcmd_cleanup);
2079     conf_register_reload(modcmd_conf_read);
2080
2081     modcmd_module = module_register("modcmd", MAIN_LOG, "modcmd.help", modcmd_expand);
2082     bind_command = modcmd_register(modcmd_module, "bind", cmd_bind, 4, MODCMD_KEEP_BOUND, "oper_level", "800", NULL);
2083     help_command = modcmd_register(modcmd_module, "help", cmd_help, 1, 0, "flags", "+nolog", NULL);
2084     modcmd_register(modcmd_module, "command", cmd_command, 2, 0, "flags", "+nolog", NULL);
2085     modcmd_register(modcmd_module, "modcmd", cmd_modcmd, 2, MODCMD_KEEP_BOUND, "template", "bind", NULL);
2086     modcmd_register(modcmd_module, "god", cmd_god, 0, MODCMD_REQUIRE_AUTHED, "flags", "+oper,+networkhelper", NULL);
2087     modcmd_register(modcmd_module, "readhelp", cmd_readhelp, 2, 0, "oper_level", "650", NULL);
2088     modcmd_register(modcmd_module, "timecmd", cmd_timecmd, 2, 0, "oper_level", "1", NULL);
2089     modcmd_register(modcmd_module, "unbind", cmd_unbind, 3, 0, "template", "bind", NULL);
2090     modcmd_register(modcmd_module, "joiner", cmd_joiner, 1, 0, NULL);
2091     modcmd_register(modcmd_module, "stats modules", cmd_stats_modules, 1, 0, "flags", "+oper", NULL);
2092     modcmd_register(modcmd_module, "stats services", cmd_stats_services, 1, 0, "flags", "+oper", NULL);
2093     modcmd_register(modcmd_module, "showcommands", cmd_showcommands, 1, 0, "flags", "+acceptchan", NULL);
2094     modcmd_register(modcmd_module, "helpfiles", cmd_helpfiles, 2, 0, "template", "bind", NULL);
2095     modcmd_register(modcmd_module, "service add", cmd_service_add, 4, 0, "flags", "+oper", NULL);
2096     modcmd_register(modcmd_module, "service rename", cmd_service_rename, 3, 0, "flags", "+oper", NULL);
2097     modcmd_register(modcmd_module, "service trigger", cmd_service_trigger, 2, 0, "flags", "+oper", NULL);
2098     modcmd_register(modcmd_module, "service privileged", cmd_service_privileged, 2, 0, "flags", "+oper", NULL);
2099     modcmd_register(modcmd_module, "service remove", cmd_service_remove, 2, 0, "flags", "+oper", NULL);
2100     modcmd_register(modcmd_module, "dumpmessages", cmd_dump_messages, 1, 0, "oper_level", "1000", NULL);
2101     version_command = modcmd_register(modcmd_module, "version", cmd_version, 1, 0, NULL);
2102     message_register_table(msgtab);
2103 }
2104
2105 static void
2106 modcmd_db_load_command(struct service *service, const char *cmdname, struct dict *obj) {
2107     struct svccmd *svccmd;
2108     struct module *module;
2109     struct modcmd *modcmd;
2110     struct string_list *slist;
2111     const char *str, *sep;
2112     char buf[MAXLEN];
2113
2114     str = database_get_data(obj, "command", RECDB_QSTRING);
2115     if (!str) {
2116         log_module(MAIN_LOG, LOG_ERROR, "Missing command for service %s command %s in modcmd.db", service->bot->nick, cmdname);
2117         return;
2118     }
2119     sep = strchr(str, '.');
2120     if (!sep) {
2121         log_module(MAIN_LOG, LOG_ERROR, "Invalid command %s for service %s command %s in modcmd.db", str, service->bot->nick, cmdname);
2122         return;
2123     }
2124     memcpy(buf, str, sep-str);
2125     buf[sep-str] = 0;
2126     if (!(module = module_find(buf))) {
2127         log_module(MAIN_LOG, LOG_ERROR, "Unknown module %s for service %s command %s in modcmd.db", buf, service->bot->nick, cmdname);
2128         return;
2129     }
2130     if (!(modcmd = dict_find(module->commands, sep+1, NULL))) {
2131         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);
2132         return;
2133     }
2134     /* Now that we know we have a command to use, fill in the basics. */
2135     svccmd = calloc(1, sizeof(*svccmd));
2136     svccmd_insert(service, strdup(cmdname), svccmd, modcmd);
2137     if ((str = database_get_data(obj, "template", RECDB_QSTRING))) {
2138         add_pending_template(svccmd, str);
2139     } else {
2140         svccmd_copy_rules(svccmd, modcmd->defaults);
2141     }
2142     if ((str = database_get_data(obj, "account_flags", RECDB_QSTRING))) {
2143         svccmd->req_account_flags = svccmd->deny_account_flags = 0;
2144         svccmd_configure(svccmd, NULL, service->bot, "account_flags", str);
2145     }
2146     if ((str = database_get_data(obj, "flags", RECDB_QSTRING))) {
2147         svccmd->flags = 0;
2148         svccmd_configure(svccmd, NULL, service->bot, "flags", str);
2149     }
2150     if ((str = database_get_data(obj, "oper_access", RECDB_QSTRING))
2151         || (str = database_get_data(obj, "opserv_level", RECDB_QSTRING))) {
2152         svccmd_configure(svccmd, NULL, service->bot, "oper_access", str);
2153     }
2154     if ((str = database_get_data(obj, "channel_access", RECDB_QSTRING))
2155         || (str = database_get_data(obj, "chanserv_level", RECDB_QSTRING))) {
2156         svccmd_configure(svccmd, NULL, service->bot, "channel_access", str);
2157     }
2158     if ((slist = database_get_data(obj, "aliased", RECDB_STRING_LIST))) {
2159         unsigned int nn;
2160         svccmd->alias.used = svccmd->alias.size = slist->used;
2161         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2162         for (nn=0; nn<slist->used; ++nn)
2163             svccmd->alias.list[nn] = strdup(slist->list[nn]);
2164     }
2165     modcmd_set_effective_flags(svccmd);
2166 }
2167
2168 static struct svccmd *
2169 service_make_alias(struct service *service, const char *alias, ...) {
2170     char *arg, *argv[MAXNUMPARAMS];
2171     unsigned int nn, argc;
2172     struct svccmd *svccmd, *template;
2173     va_list args;
2174
2175     va_start(args, alias);
2176     argc = 0;
2177     while (1) {
2178         arg = va_arg(args, char*);
2179         if (!arg)
2180             break;
2181         argv[argc++] = arg;
2182     }
2183     va_end(args);
2184     svccmd = calloc(1, sizeof(*svccmd));
2185     if (!(template = svccmd_resolve_name(svccmd, argv[0]))) {
2186         log_module(MAIN_LOG, LOG_ERROR, "Invalid base command %s for alias %s in service %s", argv[0], alias, service->bot->nick);
2187         free(svccmd->name);
2188         free(svccmd);
2189         return NULL;
2190     }
2191     if (argc > 1) {
2192         svccmd->alias.used = svccmd->alias.size = argc;
2193         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2194         for (nn=0; nn<argc; nn++)
2195             svccmd->alias.list[nn] = strdup(argv[nn]);
2196     }
2197     svccmd_insert(service, strdup(alias), svccmd, template->command);
2198     svccmd_copy_rules(svccmd, template);
2199     return svccmd;
2200 }
2201
2202 static int saxdb_present;
2203
2204 static int
2205 modcmd_saxdb_read(struct dict *db) {
2206     struct dict *db2;
2207     dict_iterator_t it, it2;
2208     struct record_data *rd, *rd2;
2209     struct service *service;
2210
2211     modcmd_load_bots(database_get_data(db, "bots", RECDB_OBJECT), 1);
2212     db2 = database_get_data(db, "services", RECDB_OBJECT);
2213     if (!db2) {
2214         log_module(MAIN_LOG, LOG_ERROR, "Missing section 'services' in modcmd db.");
2215         return 1;
2216     }
2217     for (it = dict_first(db2); it; it = iter_next(it)) {
2218         rd = iter_data(it);
2219         if (rd->type != RECDB_OBJECT) {
2220             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s' in modcmd db (expected object).", iter_key(it));
2221             continue;
2222         }
2223         if (!(service = service_find(iter_key(it)))) {
2224             log_module(MAIN_LOG, LOG_ERROR, "Unknown service '%s' listed in modcmd db.", iter_key(it));
2225             continue;
2226         }
2227         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2228             rd2 = iter_data(it2);
2229             if (rd2->type != RECDB_OBJECT) {
2230                 log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s/%s' in modcmd db (expected object).", iter_key(it), iter_key(it2));
2231                 continue;
2232             }
2233             modcmd_db_load_command(service, iter_key(it2), rd2->d.object);
2234         }
2235     }
2236     db2 = database_get_data(db, "helpfiles", RECDB_OBJECT);
2237     for (it = dict_first(db2); it; it = iter_next(it)) {
2238         struct module *module;
2239         struct string_list *slist;
2240         unsigned int ii;
2241
2242         rd = iter_data(it);
2243         if (rd->type != RECDB_STRING_LIST) {
2244             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'helpfiles/%s' in modcmd db (expected string list).", iter_key(it));
2245             continue;
2246         }
2247         slist = rd->d.slist;
2248         if (!(service = service_find(iter_key(it)))) {
2249             /* We probably whined about the service being missing above. */
2250             continue;
2251         }
2252         service->modules.used = 0;
2253         for (ii=0; ii<slist->used; ++ii) {
2254             if (!(module = dict_find(modules, slist->list[ii], NULL))) {
2255                 log_module(MAIN_LOG, LOG_ERROR, "Unknown module '%s' listed in modcmd 'helpfiles/%s'.", slist->list[ii], iter_key(it));
2256                 continue;
2257             }
2258             module_list_append(&service->modules, module);
2259         }
2260     }
2261     saxdb_present = 1;
2262     return 0;
2263 }
2264
2265 static void
2266 create_default_binds(void) {
2267     /* Which services should import which modules by default? */
2268     struct {
2269         const char *svcname;
2270         /* C is lame and requires a fixed size for this array.
2271          * Be sure you NULL-terminate each array and increment the
2272          * size here if you add more default modules to any
2273          * service. */
2274         const char *modnames[8];
2275     } def_binds[] = {
2276         { "ChanServ", { "ChanServ", NULL } },
2277         { "Global", { "Global", NULL } },
2278         { "NickServ", { "NickServ", NULL } },
2279         { "OpServ", { "OpServ", "modcmd", "sendmail", "saxdb", "proxycheck", NULL } },
2280         { NULL, { NULL } }
2281     };
2282     unsigned int ii, jj;
2283     char buf[128], *nick;
2284     struct service *service;
2285     struct module *module;
2286
2287     for (ii = 0; def_binds[ii].svcname; ++ii) {
2288         sprintf(buf, "services/%s/nick", def_binds[ii].svcname);
2289         if (!(nick = conf_get_data(buf, RECDB_QSTRING)))
2290             continue;
2291         if (!(service = service_find(nick)))
2292             continue;
2293         if (dict_size(service->commands) > 0)
2294             continue;
2295
2296         /* Bind the default modules for this service to it */
2297         for (jj = 0; def_binds[ii].modnames[jj]; ++jj) {
2298             if (!(module = module_find(def_binds[ii].modnames[jj])))
2299                 continue;
2300             service_bind_module(service, module);
2301         }
2302
2303         /* Bind the help and version commands to this service */
2304         service_bind_modcmd(service, help_command, help_command->name);
2305         service_bind_modcmd(service, version_command, version_command->name);
2306
2307         /* Now some silly hax.. (aliases that most people want) */
2308         if (!irccasecmp(def_binds[ii].svcname, "ChanServ")) {
2309             service_make_alias(service, "addowner", "*chanserv.adduser", "$1", "owner", NULL);
2310             service_make_alias(service, "addcoowner", "*chanserv.adduser", "$1", "coowner", NULL);
2311             service_make_alias(service, "addmaster", "*chanserv.adduser", "$1", "master", NULL);
2312             service_make_alias(service, "addop", "*chanserv.adduser", "$1", "op", NULL);
2313             service_make_alias(service, "addpeon", "*chanserv.adduser", "$1", "peon", NULL);
2314             service_make_alias(service, "delowner", "*chanserv.deluser", "owner", "$1", NULL);
2315             service_make_alias(service, "delcoowner", "*chanserv.deluser", "coowner", "$1", NULL);
2316             service_make_alias(service, "delmaster", "*chanserv.deluser", "master", "$1", NULL);
2317             service_make_alias(service, "delop", "*chanserv.deluser", "op", "$1", NULL);
2318             service_make_alias(service, "delpeon", "*chanserv.deluser", "peon", "$1", NULL);
2319             service_make_alias(service, "command", "*modcmd.command", NULL);
2320             service_make_alias(service, "god", "*modcmd.god", NULL);
2321         } else if (!irccasecmp(def_binds[ii].svcname, "OpServ")) {
2322             struct svccmd *svccmd;
2323             svccmd = service_make_alias(service, "stats", "*modcmd.joiner", NULL);
2324             svccmd->min_opserv_level = 101;
2325             svccmd = service_make_alias(service, "service", "*modcmd.joiner", NULL);
2326             svccmd->min_opserv_level = 900;
2327         }
2328     }
2329 }
2330
2331 static void
2332 import_aliases_db() {
2333     struct dict *db;
2334     dict_iterator_t it, it2;
2335     struct record_data *rd, *rd2;
2336     struct service *service;
2337     struct module *module;
2338
2339     if (!(db = parse_database("aliases.db")))
2340         return;
2341     for (it = dict_first(db); it; it = iter_next(it)) {
2342         service = service_find(iter_key(it));
2343         if (!service)
2344             continue;
2345         module = module_find(service->bot->nick);
2346         rd = iter_data(it);
2347         if (rd->type != RECDB_OBJECT)
2348             continue;
2349         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2350             struct modcmd *command;
2351             rd2 = iter_data(it2);
2352             if (rd2->type != RECDB_QSTRING)
2353                 continue;
2354             command = dict_find(module->commands, rd2->d.qstring, NULL);
2355             if (!command)
2356                 continue;
2357             service_bind_modcmd(service, command, iter_key(it2));
2358         }
2359     }
2360 }
2361
2362 void
2363 modcmd_finalize(void) {
2364     dict_iterator_t it;
2365
2366     /* Check databases. */
2367     saxdb_register("modcmd", modcmd_saxdb_read, modcmd_saxdb_write);
2368     create_default_binds();
2369     if (!saxdb_present)
2370         import_aliases_db();
2371
2372     /* Register services for their triggers. */
2373     for (it = dict_first(services); it; it = iter_next(it)) {
2374         struct service *svc = iter_data(it);
2375         if (svc->trigger)
2376             reg_chanmsg_func(svc->trigger, svc->bot, modcmd_chanmsg);
2377     }
2378
2379     /* Resolve command rule-templates. */
2380     while (pending_templates) {
2381         struct pending_template *ptempl = pending_templates;
2382         struct svccmd *svccmd;
2383
2384         pending_templates = ptempl->next;
2385         /* Only overwrite the current template if we have a valid template. */
2386         if (!strcmp(ptempl->base, "*")) {
2387             /* Do nothing. */
2388         } else if ((svccmd = svccmd_resolve_name(ptempl->cmd, ptempl->base))) {
2389             svccmd_copy_rules(ptempl->cmd, svccmd);
2390         } else {
2391             assert(ptempl->cmd->parent);
2392             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);
2393         }
2394         free(ptempl->base);
2395         free(ptempl);
2396     }
2397 }