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_HELP_COMMAND_ALIAS", "$uAlias for:$u %s" },
  59     { "MCMSG_COMMAND_BINDING", "%s is a binding of: %s" },
  60     { "MCMSG_ALIAS_ERROR", "Error in alias expansion for %s; check the error log for details." },
  61     { "MCMSG_INTERNAL_COMMAND", "$b%s$b is an internal command and cannot be called directly; please check command bindings." },
  62     { "MCMSG_UNKNOWN_MODULE", "Unknown module %s." },
  63     { "MCMSG_UNKNOWN_SERVICE", "Unknown service %s." },
  64     { "MCMSG_ALREADY_BOUND", "%s already has a command bound as %s." },
  65     { "MCMSG_UNKNOWN_COMMAND_2", "Unknown command name %s (relative to service %s)." },
  66     { "MCMSG_COMMAND_MODIFIED", "Option $b%s$b for $b%s$b has been set." },
  67     { "MCMSG_INSPECTION_REFUSED", "You do not have access to inspect command %s." },
  68     { "MCMSG_CANNOT_DOUBLE_ALIAS", "You cannot bind to a complex (argument-carrying) bind." },
  69     { "MCMSG_BAD_ALIAS_ARGUMENT", "Invalid alias argument $b%s$b." },
  70     { "MCMSG_COMMAND_BOUND", "New command %s bound to %s." },
  71     { "MCMSG_MODULE_BOUND", "Bound %d commands from %s to %s." },
  72     { "MCMSG_NO_COMMAND_BOUND", "%s has nothing bound as command %s." },
  73     { "MCMSG_UNBIND_PROHIBITED", "It wouldn't be very much fun to unbind the last %s command, now would it?" },
  74     { "MCMSG_COMMAND_UNBOUND", "Unbound command %s from %s." },
  75     { "MCMSG_HELPFILE_UNBOUND", "Since that was the last command from module %s on the service, the helpfile for %s was removed." },
  76     { "MCMSG_NO_HELPFILE", "Module %s does not have a help file." },
  77     { "MCMSG_HELPFILE_ERROR", "Syntax error reading %s; help contents not changed." },
  78     { "MCMSG_HELPFILE_READ", "Read %s help database in "FMT_TIME_T".%03lu seconds." },
  79     { "MCMSG_COMMAND_TIME", "Command $b%s$b finished in "FMT_TIME_T".%06lu seconds." },
  80     { "MCMSG_NEED_OPSERV_LEVEL", "You must have $O access of at least $b%u$b." },
  81     { "MCMSG_NEED_CHANSERV_LEVEL", "You must have $C access of at least $b%u$b in the channel." },
  82     { "MCMSG_NEED_ACCOUNT_FLAGS", "You must have account flags $b%s$b." },
  83     { "MCMSG_NEED_NOTHING", "Anyone may use the $b%s$b command." },
  84     { "MCMSG_NEED_STAFF_ACCESS", "You must be network staff." },
  85     { "MCMSG_NEED_STAFF_OPER", "You must be an IRC operator." },
  86     { "MCMSG_NEED_STAFF_NETHELPER", "You must be a network helper." },
  87     { "MCMSG_NEED_STAFF_NETHELPER_OR_OPER", "You must be a network helper or IRC operator." },
  88     { "MCMSG_NEED_STAFF_SHELPER", "You must be a support helper." },
  89     { "MCMSG_NEED_STAFF_SHELPER_OR_OPER", "You must be a support helper or IRC operator." },
  90     { "MCMSG_NEED_STAFF_HELPER", "You must be a network or support helper." },
  91     { "MCMSG_NEED_JOINABLE", "The channel must be open or you must be in the channel or on its userlist." },
  92     { "MCMSG_NEED_CHANUSER_CSUSPENDABLE", "You must be on the channel's userlist, and the channel can be suspended." },
  93     { "MCMSG_NEED_CHANUSER", "You must be on the channel's userlist." },
  94     { "MCMSG_NEED_REGCHAN", "You must specify a channel registered with $C." },
  95     { "MCMSG_NEED_CHANNEL", "You must specify a channel that exists." },
  96     { "MCMSG_NEED_AUTHED", "You must be authenticated with $N." },
  97     { "MCMSG_IS_TOY", "$b%s$b is a toy command." },
  98     { "MCMSG_END_REQUIREMENTS", "End of requirements for $b%s$b." },
  99     { "MCMSG_ALREADY_HELPING", "You already have security override enabled." },
 100     { "MCMSG_ALREADY_NOT_HELPING", "You already have security override disabled." },
 101     { "MCMSG_NOW_HELPING", "Security override has been enabled." },
 102     { "MCMSG_NOW_NOT_HELPING", "Security override has been disabled." },
 103     { "MCMSG_JOINER_CHOICES", "Subcommands of %s: %s" },
 104     { "MCMSG_MODULE_INFO", "Commands exported by module $b%s$b:" },
 105     { "MCMSG_SERVICE_INFO", "Commands bound to service $b%s$b:" },
 106     { "MCMSG_TOYS_DISABLED", "Toys are disabled in %s." },
 107     { "MCMSG_PUBLIC_DENY", "Public commands in $b%s$b are restricted." },
 108     { "MCMSG_HELPFILE_SEQUENCE", "Help priority %d: %s" },
 109     { "MCMSG_HELPFILE_SEQUENCE_SET", "Set helpfile priority sequence for %s." },
 110     { "MCMSG_BAD_SERVICE_NICK", "$b%s$b is an invalid nickname." },
 111     { "MCMSG_ALREADY_SERVICE", "$b%s$b is already a service." },
 112     { "MCMSG_NEW_SERVICE", "Added new service bot $b%s$b." },
 113     { "MCMSG_SERVICE_RENAMED", "Service renamed to $b%s$b." },
 114     { "MCMSG_NO_TRIGGER", "$b%s$b does not have an in-channel trigger." },
 115     { "MCMSG_REMOVED_TRIGGER", "Removed trigger from $b%s$b." },
 116     { "MCMSG_DUPLICATE_TRIGGER", "$b%s$b already uses trigger $b%c$b." },
 117     { "MCMSG_CURRENT_TRIGGER", "Trigger for $b%s$b is $b%c$b." },
 118     { "MCMSG_NEW_TRIGGER", "Changed trigger for $b%s$b to $b%c$b." },
 119     { "MCMSG_SERVICE_PRIVILEGED", "Service $b%s$b privileged: $b%s$b." },
 120     { "MCMSG_SERVICE_REMOVED", "Service $b%s$b has been deleted." },
 121     { "MCMSG_FILE_NOT_OPENED", "Unable to open file $b%s$b for writing." },
 122     { "MCMSG_MESSAGES_DUMPED", "Messages written to $b%s$b." },
 123     { "MCMSG_MESSAGE_DUMP_FAILED", "Message dump failed: %s." },
 124     { "MCMSG_COMMAND_FLAGS", "Command flags are %s (inferred: %s)." },
 125     { "MCMSG_COMMAND_ACCOUNT_FLAGS", "Requires account flags +%s, prohibits account flags +%s." },
 126     { "MCMSG_COMMAND_ACCESS_LEVEL", "Requires channel access %d and $O access %d." },
 127     { "MCMSG_COMMAND_USES", "%s has been used %d times." },
 128     { NULL, NULL }
 129 };
 130 struct userData *_GetChannelUser(struct chanData *channel, struct handle_info *handle, int override, int allow_suspended);
 131
 132 #define ACTION_ALLOW     1
 133 #define ACTION_OVERRIDE  2
 134 #define ACTION_NOCHANNEL 4
 135 #define ACTION_STAFF     8
 136
 137 #define RESOLVE_DEPTH    4
 138
 139 static struct modcmd_flag {
 140     const char *name;
 141     unsigned int flag;
 142 } flags[] = {
 143     { "acceptchan", MODCMD_ACCEPT_CHANNEL },
 144     { "acceptpluschan", MODCMD_ACCEPT_PCHANNEL },
 145     { "authed", MODCMD_REQUIRE_AUTHED },
 146     { "channel", MODCMD_REQUIRE_CHANNEL },
 147     { "chanuser", MODCMD_REQUIRE_CHANUSER },
 148     { "disabled", MODCMD_DISABLED },
 149     { "ignore_csuspend", MODCMD_IGNORE_CSUSPEND },
 150     { "joinable", MODCMD_REQUIRE_JOINABLE },
 151     { "keepbound", MODCMD_KEEP_BOUND },
 152     { "loghostmask", MODCMD_LOG_HOSTMASK },
 153     { "nolog", MODCMD_NO_LOG },
 154     { "networkhelper", MODCMD_REQUIRE_NETWORK_HELPER },
 155     { "never_csuspend", MODCMD_NEVER_CSUSPEND },
 156     { "oper", MODCMD_REQUIRE_OPER },
 157     { "qualified", MODCMD_REQUIRE_QUALIFIED },
 158     { "regchan", MODCMD_REQUIRE_REGCHAN },
 159     { "supporthelper", MODCMD_REQUIRE_SUPPORT_HELPER },
 160     { "helping", MODCMD_REQUIRE_HELPING },
 161     { "toy", MODCMD_TOY },
 162     { NULL, 0 }
 163 };
 164
 165 static int
 166 flags_bsearch(const void *a, const void *b) {
 167     const char *key = a;
 168     const struct modcmd_flag *flag = b;
 169     return ircncasecmp(key, flag->name, strlen(flag->name));
 170 }
 171
 172 static int
 173 flags_qsort(const void *a, const void *b) {
 174     const struct modcmd_flag *fa = a, *fb = b;
 175     return irccasecmp(fa->name, fb->name);
 176 }
 177
 178 DEFINE_LIST(svccmd_list, struct svccmd*);
 179 DEFINE_LIST(module_list, struct module*);
 180
 181 static void
 182 free_service_command(void *data) {
 183     struct svccmd *svccmd;
 184     unsigned int nn;
 185
 186     svccmd = data;
 187     if (svccmd->alias.used) {
 188         for (nn=0; nn<svccmd->alias.used; ++nn)
 189             free(svccmd->alias.list[nn]);
 190         free(svccmd->alias.list);
 191     }
 192     free(svccmd->name);
 193     free(svccmd);
 194 }
 195
 196 static void
 197 free_service(void *data) {
 198     struct service *service = data;
 199     dict_delete(service->commands);
 200     module_list_clean(&service->modules);
 201     free(service);
 202 }
 203
 204 static void
 205 free_module_command(void *data) {
 206     struct modcmd *modcmd = data;
 207     free_service_command(modcmd->defaults);
 208     free(modcmd->name);
 209     free(modcmd);
 210 }
 211
 212 static void
 213 free_module(void *data) {
 214     struct module *module = data;
 215     dict_delete(module->commands);
 216     close_helpfile(module->helpfile);
 217     free(module->name);
 218     free(module);
 219 }
 220
 221 struct module *
 222 module_register(const char *name, struct log_type *clog, const char *helpfile_name, expand_func_t expand_help) {
 223     struct module *newmod;
 224
 225     newmod = calloc(1, sizeof(*newmod));
 226     newmod->name = strdup(name);
 227     newmod->commands = dict_new();
 228     dict_set_free_data(newmod->commands, free_module_command);
 229     newmod->clog = clog;
 230     newmod->helpfile_name = helpfile_name;
 231     newmod->expand_help = expand_help;
 232     if (newmod->helpfile_name) {
 233         newmod->helpfile = open_helpfile(newmod->helpfile_name, newmod->expand_help);
 234     }
 235     dict_insert(modules, newmod->name, newmod);
 236     return newmod;
 237 }
 238
 239 struct module *
 240 module_find(const char *name) {
 241     return dict_find(modules, name, NULL);
 242 }
 243
 244 static void
 245 add_pending_template(struct svccmd *cmd, const char *target) {
 246     struct pending_template *pending = calloc(1, sizeof(*pending));
 247     pending->cmd = cmd;
 248     pending->base = strdup(target);
 249     pending->next = pending_templates;
 250     pending_templates = pending;
 251 }
 252
 253 static struct svccmd *
 254 svccmd_resolve_name(struct svccmd *origin, const char *name) {
 255     char *sep, svcname[MAXLEN];
 256
 257     if ((sep = strchr(name, '.'))) {
 258         memcpy(svcname, name, sep-name);
 259         svcname[sep-name] = 0;
 260         name = sep + 1;
 261         if (svcname[0] == '*') {
 262             struct module *module = module_find(svcname+1);
 263             struct modcmd *cmd = module ? dict_find(module->commands, name, NULL) : NULL;
 264             return cmd ? cmd->defaults : NULL;
 265         } else {
 266             struct service *service = service_find(svcname);
 267             return service ? dict_find(service->commands, name, NULL) : NULL;
 268         }
 269     } else {
 270         if (origin->parent) {
 271             return dict_find(origin->parent->commands, name, NULL);
 272         } else {
 273             struct modcmd *cmd = dict_find(origin->command->parent->commands, name, NULL);
 274             return cmd ? cmd->defaults : NULL;
 275         }
 276     }
 277 }
 278
 279 static void
 280 modcmd_set_effective_flags(struct svccmd *cmd) {
 281     int flags = cmd->flags | cmd->command->flags;
 282     if (cmd->min_opserv_level > 0)
 283         flags |= MODCMD_REQUIRE_OPER;
 284     if (cmd->min_channel_access > 0)
 285         flags |= MODCMD_REQUIRE_CHANUSER;
 286     if (flags & MODCMD_REQUIRE_CHANUSER)
 287         flags |= MODCMD_REQUIRE_REGCHAN;
 288     if (flags & MODCMD_REQUIRE_REGCHAN)
 289         flags |= MODCMD_REQUIRE_CHANNEL;
 290     if (flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))
 291         flags |= MODCMD_REQUIRE_AUTHED;
 292     cmd->effective_flags = flags;
 293 }
 294
 295 static void
 296 svccmd_copy_rules(struct svccmd *dest, struct svccmd *src) {
 297     dest->flags |= src->flags;
 298     dest->req_account_flags |= src->req_account_flags;
 299     dest->deny_account_flags |= src->deny_account_flags;
 300     if (src->min_opserv_level > dest->min_opserv_level)
 301         dest->min_opserv_level = src->min_opserv_level;
 302     if (src->min_channel_access > dest->min_channel_access)
 303         dest->min_channel_access = src->min_channel_access;
 304     modcmd_set_effective_flags(dest);
 305 }
 306
 307 static int
 308 svccmd_configure(struct svccmd *cmd, struct userNode *user, struct userNode *bot, const char *param, const char *value) {
 309     if (!irccasecmp(param, "flags")) {
 310         unsigned int set_flags, rem_flags;
 311         struct modcmd_flag *flag;
 312         int opt, end;
 313
 314         for (set_flags = rem_flags = 0; 1; value += end) {
 315             end = strcspn(value, ",");
 316             if (*value == '+')
 317                 opt = 1;
 318             else if (*value == '-')
 319                 opt = 0;
 320             else {
 321                 if (user)
 322                     send_message(user, bot, "MCMSG_BARE_FLAG", end, value);
 323                 else
 324                     log_module(MAIN_LOG, LOG_ERROR, "Flag %.*s must be preceded by a + or - (for command %s).", end, value, cmd->name);
 325                 return 0;
 326             }
 327             value++;
 328             flag = bsearch(value, flags, ArrayLength(flags)-1, sizeof(flags[0]), flags_bsearch);
 329             if (!flag) {
 330                 if (user)
 331                     send_message(user, bot, "MCMSG_UNKNOWN_FLAG", end, value);
 332                 else
 333                     log_module(MAIN_LOG, LOG_ERROR, "Unknown module flag %.*s (for command %s).", end, value, cmd->name);
 334                 return 0;
 335             }
 336             if (opt)
 337                 set_flags |= flag->flag, rem_flags &= ~flag->flag;
 338             else
 339                 rem_flags |= flag->flag, set_flags &= ~flag->flag;
 340             if (!value[end-1])
 341                 break;
 342         }
 343         cmd->flags = (cmd->flags | set_flags) & ~rem_flags;
 344         return 1;
 345     } else if (!irccasecmp(param, "channel_level") || !irccasecmp(param, "channel_access") || !irccasecmp(param, "access")) {
 346         unsigned short ul;
 347         if (!irccasecmp(value, "none") || !irccasecmp(value, "0")) {
 348             cmd->min_channel_access = 0;
 349             return 1;
 350         } else if ((ul = user_level_from_name(value, UL_OWNER)) > 0) {
 351             cmd->min_channel_access = ul;
 352             return 1;
 353         } else if (user) {
 354             send_message(user, bot, "MCMSG_BAD_CHANSERV_LEVEL", value);
 355             return 0;
 356         } else {
 357             log_module(MAIN_LOG, LOG_ERROR, "Invalid ChanServ access level %s (for command %s).", value, cmd->name);
 358             return 0;
 359         }
 360     } else if (!irccasecmp(param, "oper_level") || !irccasecmp(param, "oper_access") || !irccasecmp(param, "level")) {
 361         unsigned int newval = atoi(value);
 362         if (!isdigit(value[0]) || (newval > 1000)) {
 363             if (user)
 364                 send_message(user, bot, "MCMSG_BAD_OPSERV_LEVEL", value);
 365             else
 366                 log_module(MAIN_LOG, LOG_ERROR, "Invalid OpServ access level %s (for command %s).", value, cmd->name);
 367             return 0;
 368         }
 369         if (user && (!user->handle_info || (cmd->min_opserv_level > user->handle_info->opserv_level))) {
 370             send_message(user, bot, "MCMSG_LEVEL_TOO_LOW", cmd->name);
 371             return 0;
 372         }
 373         if (user && (!user->handle_info || (newval > user->handle_info->opserv_level))) {
 374             send_message(user, bot, "MCMSG_LEVEL_TOO_HIGH", value);
 375             return 0;
 376         }
 377         cmd->min_opserv_level = newval;
 378         return 1;
 379     } else if (!irccasecmp(param, "account_flags")) {
 380         return nickserv_modify_handle_flags(user, bot, value, &cmd->req_account_flags, &cmd->deny_account_flags);
 381     } else {
 382         if (user)
 383             send_message(user, bot, "MCMSG_BAD_OPTION", param);
 384         else
 385             log_module(MAIN_LOG, LOG_ERROR, "Unknown option %s (for command %s).", param, cmd->name);
 386         return 0;
 387     }
 388 }
 389
 390 struct modcmd *
 391 modcmd_register(struct module *module, const char *name, modcmd_func_t func, unsigned int min_argc, unsigned int flags, ...) {
 392     struct modcmd *newcmd;
 393     va_list args;
 394     const char *param, *value;
 395
 396     newcmd = calloc(1, sizeof(*newcmd));
 397     newcmd->name = strdup(name);
 398     newcmd->parent = module;
 399     newcmd->func = func;
 400     newcmd->min_argc = min_argc;
 401     newcmd->flags = flags;
 402     newcmd->defaults = calloc(1, sizeof(*newcmd->defaults));
 403     newcmd->defaults->name = strdup(newcmd->name);
 404     newcmd->defaults->command = newcmd;
 405     dict_insert(module->commands, newcmd->name, newcmd);
 406     if (newcmd->flags & (MODCMD_REQUIRE_REGCHAN|MODCMD_REQUIRE_CHANNEL|MODCMD_REQUIRE_CHANUSER|MODCMD_REQUIRE_JOINABLE)) {
 407         newcmd->defaults->flags |= MODCMD_ACCEPT_CHANNEL;
 408     }
 409     if (newcmd->flags & MODCMD_REQUIRE_STAFF) {
 410         newcmd->defaults->flags |= MODCMD_REQUIRE_AUTHED;
 411     }
 412     va_start(args, flags);
 413     while ((param = va_arg(args, const char*))) {
 414         value = va_arg(args, const char*);
 415         if (!irccasecmp(param, "template")) {
 416             struct svccmd *svccmd = svccmd_resolve_name(newcmd->defaults, value);
 417             if (svccmd) {
 418                 svccmd_copy_rules(newcmd->defaults, svccmd);
 419             } else {
 420                 log_module(MAIN_LOG, LOG_ERROR, "Unable to resolve template name %s for %s.%s.", value, newcmd->parent->name, newcmd->name);
 421             }
 422             add_pending_template(newcmd->defaults, value);
 423         } else {
 424             svccmd_configure(newcmd->defaults, NULL, NULL, param, value);
 425         }
 426     }
 427     modcmd_set_effective_flags(newcmd->defaults);
 428     va_end(args);
 429     return newcmd;
 430 }
 431
 432 /* This is kind of a lame hack, but it is actually simpler than having
 433  * the permission check vary based on the command itself, or having a
 434  * more generic rule system.
 435  */
 436 int
 437 svccmd_can_invoke(struct userNode *user, struct userNode *bot, struct svccmd *cmd, struct chanNode *channel, int options) {
 438     unsigned int uData_checked = 0;
 439     struct userData *uData = NULL;
 440     int rflags = 0, flags = cmd->effective_flags;
 441
 442     if (flags & MODCMD_DISABLED) {
 443         if (options & SVCCMD_NOISY)
 444             send_message(user, bot, "MSG_COMMAND_DISABLED", cmd->name);
 445         return 0;
 446     }
 447     if ((flags & MODCMD_REQUIRE_QUALIFIED) && !(options & SVCCMD_QUALIFIED)) {
 448         if (options & SVCCMD_NOISY)
 449             send_message(user, bot, "MCMSG_MUST_QUALIFY", bot->nick, cmd->name, bot->nick);
 450         return 0;
 451     }
 452     if (flags & MODCMD_REQUIRE_AUTHED) {
 453         if (!user->handle_info) {
 454             if (options & SVCCMD_NOISY)
 455                 send_message(user, bot, "MSG_AUTHENTICATE");
 456             return 0;
 457         }
 458         if (HANDLE_FLAGGED(user->handle_info, SUSPENDED)) {
 459             if (options & SVCCMD_NOISY)
 460                 send_message(user, bot, "MCMSG_ACCOUNT_SUSPENDED");
 461             return 0;
 462         }
 463     }
 464     if (channel || (options & SVCCMD_NOISY)) {
 465         if ((flags & MODCMD_REQUIRE_CHANNEL) && !channel) {
 466             if (options & SVCCMD_NOISY)
 467                 send_message(user, bot, "MSG_INVALID_CHANNEL");
 468             return 0;
 469         }
 470         if (flags & MODCMD_REQUIRE_REGCHAN) {
 471             if (!channel->channel_info) {
 472                 if (options & SVCCMD_NOISY)
 473                     send_message(user, bot, "MCMSG_CHAN_NOT_REGISTERED", channel->name);
 474                 return 0;
 475             } else if (IsSuspended(channel->channel_info) && !(flags & MODCMD_IGNORE_CSUSPEND)) {
 476                 /* allow security-override users to always ignore channel suspensions, but flag it as a staff command */
 477                 if (!user->handle_info
 478                     || !HANDLE_FLAGGED(user->handle_info, HELPING)
 479                     || (flags & MODCMD_NEVER_CSUSPEND)) {
 480                     if (options & SVCCMD_NOISY)
 481                         send_message(user, bot, "MCMSG_CHAN_SUSPENDED", channel->name, channel->channel_info->suspended->reason);
 482                     return 0;
 483                 }
 484                 rflags |= ACTION_STAFF;
 485             }
 486         }
 487         if (flags & MODCMD_REQUIRE_CHANUSER) {
 488             if (!uData_checked)
 489                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 490             if (!uData) {
 491                 if (options & SVCCMD_NOISY)
 492                     send_message(user, bot, "MCMSG_NO_CHANNEL_ACCESS", channel->name);
 493                 return 0;
 494             } else if (uData->access < cmd->min_channel_access) {
 495                 if (options & SVCCMD_NOISY)
 496                     send_message(user, bot, "MCMSG_LOW_CHANNEL_ACCESS", channel->name);
 497                 return 0;
 498             }
 499         }
 500         if ((flags & MODCMD_REQUIRE_JOINABLE) && channel) {
 501             if (!uData_checked)
 502                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 503             if ((channel->modes & (MODE_INVITEONLY|MODE_KEY|MODE_SECRET))
 504                 && !uData
 505                 && !IsService(user)
 506                 && !GetUserMode(channel, user)) {
 507                 if (options & SVCCMD_NOISY)
 508                     send_message(user, bot, "MCMSG_REQUIRES_JOINABLE", channel->name);
 509                 return 0;
 510             }
 511         }
 512         if ((flags & MODCMD_TOY) && channel) {
 513             if (!channel->channel_info)
 514                 rflags |= ACTION_NOCHANNEL;
 515             else switch (channel->channel_info->chOpts[chToys]) {
 516             case 'd':
 517                 if (options & SVCCMD_NOISY)
 518                     send_message(user, bot, "MCMSG_TOYS_DISABLED", channel->name);
 519                 return 0;
 520             case 'n':
 521                 rflags |= ACTION_NOCHANNEL;
 522                 break;
 523             case 'p':
 524                 break;
 525             }
 526         }
 527     }
 528     if (flags & MODCMD_REQUIRE_STAFF) {
 529         if (((flags & MODCMD_REQUIRE_OPER) && IsOper(user))
 530             || ((flags & MODCMD_REQUIRE_NETWORK_HELPER) && IsNetworkHelper(user))
 531             || ((flags & MODCMD_REQUIRE_SUPPORT_HELPER) && IsSupportHelper(user))) {
 532             /* allow it */
 533             rflags |= ACTION_STAFF;
 534         } else {
 535             if (options & SVCCMD_NOISY)
 536                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 537             return 0;
 538         }
 539     }
 540     if (flags & MODCMD_REQUIRE_HELPING) {
 541         if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
 542             if (options & SVCCMD_NOISY)
 543                 send_message(user, bot, "MCMSG_MUST_BE_HELPING");
 544             return 0;
 545         }
 546         rflags |= ACTION_STAFF;
 547     }
 548     if (cmd->min_opserv_level > 0) {
 549         if (!oper_has_access(user, bot, cmd->min_opserv_level, !(options & SVCCMD_NOISY))) return 0;
 550         rflags |= ACTION_STAFF;
 551     }
 552     if (cmd->req_account_flags || cmd->deny_account_flags) {
 553         if (!user->handle_info) {
 554             if (options & SVCCMD_NOISY)
 555                 send_message(user, bot, "MSG_AUTHENTICATE");
 556             return 0;
 557         }
 558         /* Do we want separate or different messages here? */
 559         if ((cmd->req_account_flags & ~user->handle_info->flags)
 560             || (cmd->deny_account_flags & user->handle_info->flags)) {
 561             if (options & SVCCMD_NOISY)
 562                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 563             return 0;
 564         }
 565     }
 566
 567     /* If it's an override, return a special value. */
 568     if ((flags & MODCMD_REQUIRE_CHANUSER)
 569         && (options & SVCCMD_NOISY)
 570         && (uData->access > 500)
 571         && (!(uData = _GetChannelUser(channel->channel_info, user->handle_info, 0, 0))
 572             || uData->access < cmd->min_channel_access)
 573         && !(flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))) {
 574         rflags |= ACTION_OVERRIDE;
 575     }
 576     return rflags | ACTION_ALLOW;
 577 }
 578
 579 static int
 580 svccmd_expand_alias(struct svccmd *cmd, unsigned int old_argc, char *old_argv[], char *new_argv[]) {
 581     unsigned int ii, new_argc;
 582     char *arg;
 583
 584     for (ii=new_argc=0; ii<cmd->alias.used; ++ii) {
 585         arg = cmd->alias.list[ii];
 586         if (arg[0] != '$') {
 587             new_argv[new_argc++] = arg;
 588             continue;
 589         }
 590         if (arg[1] == '$') {
 591             new_argv[new_argc++] = arg + 1;
 592         } else if (isdigit(arg[1])) {
 593             unsigned int lbound, ubound, jj;
 594             char *end_num;
 595
 596             lbound = strtoul(arg+1, &end_num, 10);
 597             switch (end_num[0]) {
 598             case 0: ubound = lbound; break;
 599             case '-':
 600                 if (end_num[1] == 0) {
 601                     ubound = old_argc - 1;
 602                     break;
 603                 } else if (isdigit(end_num[1])) {
 604                     ubound = strtoul(end_num+1, NULL, 10);
 605                     break;
 606                 }
 607                 /* else fall through to default case */
 608             default:
 609                 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);
 610                 return 0;
 611             }
 612             if (ubound >= old_argc)
 613                 ubound = old_argc - 1;
 614             if (lbound < old_argc)
 615                 for (jj = lbound; jj <= ubound; )
 616                     new_argv[new_argc++] = old_argv[jj++];
 617         } else {
 618             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);
 619             return 0;
 620         }
 621     }
 622     return new_argc;
 623 }
 624
 625 int
 626 svccmd_invoke_argv(struct userNode *user, struct service *service, struct chanNode *channel, unsigned int argc, char *argv[], unsigned int server_qualified) {
 627     extern struct userNode *chanserv;
 628     struct svccmd *cmd;
 629     unsigned int cmd_arg, perms, flags, options;
 630     char channel_name[CHANNELLEN+1];
 631
 632     /* First check pubcmd for the channel. */
 633     if (channel && (channel->channel_info) && (service->bot == chanserv)
 634         && !check_user_level(channel, user, lvlPubCmd, 1, 0)) {
 635         send_message(user, service->bot, "MCMSG_PUBLIC_DENY", channel->name);
 636         return 0;
 637     }
 638
 639     options = (server_qualified ? SVCCMD_QUALIFIED : 0) | SVCCMD_DEBIT | SVCCMD_NOISY;
 640     /* Find the command argument. */
 641     cmd_arg = IsChannelName(argv[0]) ? 1 : 0;
 642     if (argc < cmd_arg+1) {
 643         send_message(user, service->bot, "MCMSG_MISSING_COMMAND");
 644         return 0;
 645     }
 646     if (!isalnum(*argv[cmd_arg])) {
 647         /* Silently ignore stuff that doesn't begin with a letter or number. */
 648         return 0;
 649     }
 650     cmd = dict_find(service->commands, argv[cmd_arg], NULL);
 651     if (!cmd) {
 652         if (!channel)
 653             send_message(user, service->bot, "MSG_COMMAND_UNKNOWN", argv[cmd_arg]);
 654         return 0;
 655     }
 656     flags = cmd->effective_flags;
 657     /* If they put a channel name first, check if the command allows
 658      * it.  If so, swap it with the command name.
 659      */
 660     if (cmd_arg == 1) {
 661         char *tmp;
 662         /* Complain if we're not supposed to accept the channel. */
 663         if (!(flags & MODCMD_ACCEPT_CHANNEL)) {
 664             send_message(user, service->bot, "MCMSG_NO_CHANNEL_BEFORE");
 665             return 0;
 666         }
 667         if (!(flags & MODCMD_ACCEPT_PCHANNEL)
 668             && (argv[0][0] == '+')) {
 669             send_message(user, service->bot, "MCMSG_NO_PLUS_CHANNEL");
 670             return 0;
 671         }
 672         tmp = argv[1];
 673         argv[1] = argv[0];
 674         argv[0] = tmp;
 675     }
 676
 677     /* Try to grab a channel handle before alias expansion.
 678      * If the command accepts a channel name, and argv[1] is
 679      * one, use it as a channel name, and hide it from logging.
 680      */
 681     if ((argc > 1)
 682         && (flags & MODCMD_ACCEPT_CHANNEL)
 683         && IsChannelName(argv[1])
 684         && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 685         && (channel = dict_find(channels, argv[1], NULL))) {
 686         argv[1] = argv[0];
 687         argv++, argc--;
 688         cmd_arg = 1;
 689     }
 690
 691     /* Expand the alias arguments, if there are any. */
 692     if (cmd->alias.used) {
 693         char *new_argv[MAXNUMPARAMS];
 694         argc = svccmd_expand_alias(cmd, argc, argv, new_argv);
 695         if (!argc) {
 696             send_message(service->bot, user, "MCMSG_ALIAS_ERROR", cmd->name);
 697             return 0;
 698         }
 699         argv = new_argv;
 700
 701         /* Try again to grab a handle to the channel after alias
 702          * expansion, overwriting any previous channel. This should,
 703          * of course, only be done again if an alias was acually
 704          * expanded. */
 705         if ((argc > 1)
 706             && (flags & MODCMD_ACCEPT_CHANNEL)
 707             && IsChannelName(argv[1])
 708             && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 709             && (channel = dict_find(channels, argv[1], NULL))) {
 710             argv[1] = argv[0];
 711             argv++, argc--;
 712             cmd_arg = 1;
 713         }
 714     }
 715
 716     /* Figure out what actions we should do for it.. */
 717     if (cmd_arg && (flags & MODCMD_TOY)) {
 718         /* Do not let user manually specify a channel. */
 719         channel = NULL;
 720     }
 721     if (argc < cmd->command->min_argc) {
 722         send_message(user, service->bot, "MSG_MISSING_PARAMS", cmd->name);
 723         return 0;
 724     }
 725     if (!cmd->command->func) {
 726         send_message(user, service->bot, "MCMSG_INTERNAL_COMMAND", cmd->name);
 727         return 0;
 728     }
 729     perms = svccmd_can_invoke(user, service->bot, cmd, channel, options);
 730     if (!perms)
 731         return 0;
 732     cmd->uses++;
 733     if (perms & ACTION_NOCHANNEL)
 734         channel = NULL;
 735
 736     if (channel)
 737         safestrncpy(channel_name, channel->name, sizeof(channel_name));
 738     else
 739         channel_name[0] = 0;
 740     if (!cmd->command->func(user, channel, argc, argv, cmd))
 741         return 0;
 742     if (!(flags & MODCMD_NO_LOG)) {
 743         enum log_severity slvl;
 744         if (perms & ACTION_STAFF)
 745             slvl = LOG_STAFF;
 746         else if (perms & ACTION_OVERRIDE)
 747             slvl = LOG_OVERRIDE;
 748         else
 749             slvl = LOG_COMMAND;
 750         /* Unsplit argv after running the function to get the benefit
 751          * of any mangling/hiding done by the commands. */
 752         log_audit(cmd->command->parent->clog, slvl, user, service->bot, channel_name, ((flags & MODCMD_LOG_HOSTMASK) ? AUDIT_HOSTMASK : 0), unsplit_string(argv, argc, NULL));
 753     }
 754     return 1;
 755 }
 756
 757 int
 758 svccmd_send_help(struct userNode *user, struct userNode *bot, struct svccmd *cmd) {
 759     char cmdname[MAXLEN];
 760     unsigned int nn;
 761     int r;
 762     /* Show command name (in bold). */
 763     for (nn=0; cmd->name[nn]; nn++)
 764         cmdname[nn] = toupper(cmd->name[nn]);
 765     cmdname[nn] = 0;
 766     send_message_type(4, user, bot, "=--- $b%s$b ---=", cmdname);
 767
 768     /* Show the help entry for the underlying command. */
 769         /* Lets not show help for a parent command, thats not what
 770          * they asked for!
 771          * return send_help(user, bot, cmd->command->parent->helpfile, cmd->command->name);
 772          * TODO: We actually DO want to show the parent IF there is no other help.
 773          */
 774     r = send_help(user, bot, cmd->command->parent->helpfile, cmd->name);
 775
 776     /* If it's an alias, show what it's an alias for. */
 777     if (cmd->alias.used) {
 778         char alias_text[MAXLEN];
 779         unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 780         send_message(user, bot, "MCMSG_HELP_COMMAND_ALIAS", alias_text);
 781     }
 782     return r;
 783 }
 784
 785 int
 786 svccmd_send_help_2(struct userNode *user, struct service *service, const char *topic) {
 787     struct module *module;
 788     struct svccmd *cmd;
 789     unsigned int ii;
 790
 791     /* If there is a command, send help for the command */
 792     if ((cmd = dict_find(service->commands, topic, NULL)))
 793         return svccmd_send_help(user, service->bot, cmd);
 794
 795     /* If there is no topic show the index */
 796     if (!topic)
 797         topic = "<index>";
 798     /* look for the thing in the included help files */
 799     for (ii = 0; ii < service->modules.used; ++ii) {
 800         module = service->modules.list[ii];
 801         if (!module->helpfile)
 802             continue;
 803         if (dict_find(module->helpfile->db, topic, NULL))
 804             return send_help(user, service->bot, module->helpfile, topic);
 805     }
 806     /* Otherwise say we cant find it */
 807     send_message(user, service->bot, "MSG_TOPIC_UNKNOWN");
 808     return 0;
 809 }
 810
 811 static int
 812 svccmd_invoke(struct userNode *user, struct service *service, struct chanNode *channel, char *text, int server_qualified) {
 813     unsigned int argc;
 814     char *argv[MAXNUMPARAMS];
 815
 816     if (!*text)
 817         return 0;
 818     if (service->privileged) {
 819         if (!IsOper(user)) {
 820             send_message(user, service->bot, "MSG_SERVICE_PRIVILEGED", service->bot->nick);
 821             return 0;
 822         }
 823         if (!user->handle_info) {
 824             send_message(user, service->bot, "MSG_AUTHENTICATE");
 825             return 0;
 826         }
 827         if (HANDLE_FLAGGED(user->handle_info, OPER_SUSPENDED)) {
 828             send_message(user, service->bot, "MSG_OPER_SUSPENDED");
 829             return 0;
 830         }
 831     }
 832     argc = split_line(text, false, ArrayLength(argv), argv);
 833     return argc ? svccmd_invoke_argv(user, service, channel, argc, argv, server_qualified) : 0;
 834 }
 835
 836 void
 837 modcmd_privmsg(struct userNode *user, struct userNode *bot, char *text, int server_qualified) {
 838     struct service *service;
 839
 840     if (!(service = dict_find(services, bot->nick, NULL))) {
 841         log_module(MAIN_LOG, LOG_ERROR, "modcmd_privmsg got privmsg for unhandled service %s, unregistering.", bot->nick);
 842         reg_privmsg_func(bot, NULL);
 843         return;
 844     }
 845
 846     if (text[0] == '\x01') {
 847         char *term, response[MAXLEN];
 848
 849         text++; /* Skip leading ^A. */
 850         /* Chop off final ^A. */
 851         term = strchr(text, '\x01');
 852         if (!term)
 853             return;
 854         *term = '\0';
 855         /* Parse out leading text. */
 856         term = strchr(text, ' ');
 857         if (term) {
 858             *term++ = '\0';
 859             if (!*term)
 860                 term = NULL;
 861         }
 862         /* No dict lookup since these are so few. */
 863         if (!irccasecmp(text, "CLIENTINFO")) {
 864             /* Use \001 instead of \x01 because apparently \x01C is
 865              * interpreted as ASCII FS (\034, decimal 28, hex 1C).
 866              */
 867             irc_notice_user(bot, user, "\001CLIENTINFO CLIENTINFO PING TIME USERINFO VERSION\x01");
 868         } else if (!irccasecmp(text, "PING")) {
 869             if (term) {
 870                 snprintf(response, sizeof(response), "\x01PONG %s\x01", term);
 871                 irc_notice_user(bot, user, response);
 872             } else {
 873                 irc_notice_user(bot,user, "\x01PONG\x01");
 874             }
 875         } else if (!irccasecmp(text, "TIME")) {
 876             struct tm tm;
 877             localtime_r(&now, &tm);
 878             strftime(response, sizeof(response), "\x01TIME %a %b %d %H:%M:%S %Y\x01", &tm);
 879             irc_notice_user(bot, user, response);
 880         } else if (!irccasecmp(text, "USERINFO")) {
 881             snprintf(response, sizeof(response), "\x01USERINFO %s\x01", bot->info);
 882             irc_notice_user(bot, user, response);
 883         } else if (!irccasecmp(text, "VERSION")) {
 884             /* This function provides copyright management information
 885              * to end users of srvx. You should not alter, disable or
 886              * remove this command or its accessibility to normal IRC
 887              * users, except to add copyright information pertaining
 888              * to changes you make to srvx.
 889              */
 890             snprintf(response, sizeof(response), "\x01VERSION %s (%s) %s\x01", PACKAGE_STRING, CODENAME, "");
 891             irc_notice_user(bot, user, response);
 892         }
 893         return;
 894     }
 895
 896     if (service->msg_hook && service->msg_hook(user, bot, text, server_qualified))
 897         return;
 898     svccmd_invoke(user, service, NULL, text, server_qualified);
 899 }
 900
 901 void
 902 modcmd_chanmsg(struct userNode *user, struct chanNode *chan, char *text, struct userNode *bot) {
 903     struct service *service;
 904     if (!(service = dict_find(services, bot->nick, NULL))) return;
 905     svccmd_invoke(user, service, chan, text, 0);
 906 }
 907
 908 struct service *
 909 service_register(struct userNode *bot) {
 910     struct service *service;
 911     if ((service = dict_find(services, bot->nick, NULL)))
 912         return service;
 913     service = calloc(1, sizeof(*service));
 914     module_list_init(&service->modules);
 915     service->commands = dict_new();
 916     service->bot = bot;
 917     dict_set_free_data(service->commands, free_service_command);
 918     dict_insert(services, service->bot->nick, service);
 919     reg_privmsg_func(bot, modcmd_privmsg);
 920     return service;
 921 }
 922
 923 struct service *
 924 service_find(const char *name) {
 925     return dict_find(services, name, NULL);
 926 }
 927
 928 static void
 929 svccmd_insert(struct service *service, char *name, struct svccmd *svccmd, struct modcmd *modcmd) {
 930     unsigned int ii;
 931     svccmd->parent = service;
 932     svccmd->name = name;
 933     svccmd->command = modcmd;
 934     svccmd->command->bind_count++;
 935     dict_insert(service->commands, svccmd->name, svccmd);
 936     for (ii=0; ii<service->modules.used; ++ii) {
 937         if (service->modules.list[ii] == svccmd->command->parent) break;
 938     }
 939     if (ii == service->modules.used) {
 940         module_list_append(&service->modules, svccmd->command->parent);
 941     }
 942 }
 943
 944 struct svccmd *
 945 service_bind_modcmd(struct service *service, struct modcmd *cmd, const char *name) {
 946     struct svccmd *svccmd;
 947     if ((svccmd = dict_find(service->commands, name, NULL))) {
 948         if (svccmd->command == cmd) return svccmd;
 949         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);
 950         return NULL;
 951     }
 952     svccmd = calloc(1, sizeof(*svccmd));
 953     svccmd_insert(service, strdup(name), svccmd, cmd);
 954     svccmd_copy_rules(svccmd, cmd->defaults);
 955     return svccmd;
 956 }
 957
 958 static unsigned int
 959 service_bind_module(struct service *service, struct module *module) {
 960     dict_iterator_t it;
 961     struct modcmd *modcmd;
 962     unsigned int count;
 963
 964     count = 0;
 965     for (it = dict_first(module->commands); it; it = iter_next(it)) {
 966         modcmd = iter_data(it);
 967         if (!((modcmd->flags | modcmd->defaults->flags) & MODCMD_NO_DEFAULT_BIND))
 968             if (service_bind_modcmd(service, modcmd, iter_key(it)))
 969                 count++;
 970     }
 971     return count;
 972 }
 973
 974 /* This MUST return argc if the alias expansion code knows how to deal
 975  * with every argument in argv; otherwise, it MUST return the index of
 976  * an argument that the expansion code does not know how to deal with.
 977  */
 978 static unsigned int
 979 check_alias_args(char *argv[], unsigned int argc) {
 980     unsigned int arg;
 981
 982     for (arg=0; arg<argc; ++arg) {
 983         if (argv[arg][0] != '$') {
 984             continue;
 985         } else if (argv[arg][1] == '$') {
 986             continue;
 987         } else if (isdigit(argv[arg][1])) {
 988             char *end_num;
 989
 990             strtoul(argv[arg]+1, &end_num, 10);
 991             switch (end_num[0]) {
 992             case 0:
 993                 continue;
 994             case '-':
 995                 if (end_num[1] == 0)
 996                     continue;
 997                 else if (isdigit(end_num[1]))
 998                     continue;
 999                 /* else fall through to default case */
1000             default:
1001                 return arg;
1002             }
1003         } else
1004             return arg;
1005     }
1006     return arg;
1007 }
1008
1009 static unsigned int
1010 collapse_cmdname(char *argv[], unsigned int argc, char *dest) {
1011     unsigned int ii, pos, arg;
1012     if (!argc) {
1013         dest[0] = 0;
1014         return 0;
1015     }
1016     for (ii=pos=0, arg=0; argv[arg][ii]; ) {
1017         if (argv[arg][ii] == '\\') {
1018             if (argv[arg][ii+1]) {
1019                 /* escaping a real character just puts it in literally */
1020                 dest[pos++] = argv[arg][++ii];
1021             } else if ((arg+1) == argc) {
1022                 /* we ran to the end of the argument list; abort */
1023                 break;
1024             } else {
1025                 /* escape at end of a word is a space */
1026                 dest[pos++] = ' ';
1027                 ii = 0;
1028                 arg++;
1029             }
1030         } else {
1031             /* normal characters don't need escapes */
1032             dest[pos++] = argv[arg][ii++];
1033         }
1034     }
1035     dest[pos] = 0;
1036     return arg + 1;
1037 }
1038
1039 static MODCMD_FUNC(cmd_bind) {
1040     struct service *service;
1041     struct svccmd *template, *newcmd;
1042     char *svcname, *dot;
1043     char newname[MAXLEN], cmdname[MAXLEN];
1044     unsigned int arg, diff;
1045
1046     assert(argc > 3);
1047     svcname = argv[1];
1048     arg = collapse_cmdname(argv+2, argc-2, newname) + 2;
1049     if (!arg) {
1050         reply("MSG_MISSING_PARAMS", cmd->name);
1051         return 0;
1052     }
1053     diff = collapse_cmdname(argv+arg, argc-arg, cmdname);
1054     if (!diff) {
1055         reply("MSG_MISSING_PARAMS", cmd->name);
1056         return 0;
1057     }
1058     arg += diff;
1059
1060     if (!(service = service_find(svcname))) {
1061         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1062         return 0;
1063     }
1064
1065     if ((newcmd = dict_find(service->commands, newname, NULL))) {
1066         reply("MCMSG_ALREADY_BOUND", service->bot->nick, newname);
1067         return 0;
1068     }
1069
1070     if ((dot = strchr(cmdname, '.')) && (dot[1] == '*') && (dot[2] == 0)) {
1071         unsigned int count;
1072         struct module *module;
1073         *dot = 0;
1074         module = module_find((cmdname[0] == '*') ? cmdname+1 : cmdname);
1075         if (!module) {
1076             reply("MSG_MODULE_UNKNOWN", cmdname);
1077             return 0;
1078         }
1079         count = service_bind_module(service, module);
1080         reply("MCMSG_MODULE_BOUND", count, module->name, service->bot->nick);
1081         return count != 0;
1082     }
1083     newcmd = calloc(1, sizeof(*newcmd));
1084     newcmd->name = strdup(newname);
1085     newcmd->parent = service;
1086     if (!(template = svccmd_resolve_name(newcmd, cmdname))) {
1087         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, service->bot->nick);
1088         free(newcmd->name);
1089         free(newcmd);
1090         return 0;
1091     }
1092     if (template->alias.used) {
1093         reply("MCMSG_CANNOT_DOUBLE_ALIAS");
1094         free(newcmd->name);
1095         free(newcmd);
1096         return 0;
1097     }
1098
1099     if (argc > arg) {
1100         /* a more complicated alias; fix it up */
1101         unsigned int nn;
1102
1103         arg -= diff;
1104         nn = check_alias_args(argv+arg, argc-arg);
1105         if (nn+arg < argc) {
1106             reply("MCMSG_BAD_ALIAS_ARGUMENT", argv[nn+arg]);
1107             free(newcmd->name);
1108             free(newcmd);
1109             return 0;
1110         }
1111         newcmd->alias.used = newcmd->alias.size = argc-arg;
1112         newcmd->alias.list = calloc(newcmd->alias.size, sizeof(newcmd->alias.list[0]));
1113         for (nn=0; nn<newcmd->alias.used; ++nn)
1114             newcmd->alias.list[nn] = strdup(argv[nn+arg]);
1115     }
1116
1117     svccmd_insert(service, newcmd->name, newcmd, template->command);
1118     svccmd_copy_rules(newcmd, template);
1119     reply("MCMSG_COMMAND_BOUND", newcmd->name, newcmd->parent->bot->nick);
1120     return 1;
1121 }
1122
1123 static int
1124 service_recheck_bindings(struct service *service, struct module *module) {
1125     dict_iterator_t it;
1126     struct svccmd *cmd;
1127
1128     for (it = dict_first(service->commands); it; it = iter_next(it)) {
1129         cmd = iter_data(it);
1130         if (cmd->command->parent == module) return 0;
1131     }
1132     /* No more bindings, remove it from our list. */
1133     module_list_remove(&service->modules, module);
1134     return 1;
1135 }
1136
1137 static svccmd_unbind_func_t *suf_list;
1138 unsigned int suf_size, suf_used;
1139
1140 void
1141 reg_svccmd_unbind_func(svccmd_unbind_func_t handler) {
1142     if (suf_used == suf_size) {
1143         if (suf_size) {
1144             suf_size <<= 1;
1145             suf_list = realloc(suf_list, suf_size*sizeof(svccmd_unbind_func_t));
1146         } else {
1147             suf_size = 8;
1148             suf_list = malloc(suf_size*sizeof(svccmd_unbind_func_t));
1149         }
1150     }
1151     suf_list[suf_used++] = handler;
1152 }
1153
1154 static MODCMD_FUNC(cmd_unbind) {
1155     struct service *service;
1156     struct userNode *bot;
1157     struct svccmd *bound;
1158     struct module *module;
1159     const char *svcname;
1160     unsigned int arg, ii;
1161     char cmdname[MAXLEN];
1162
1163     assert(argc > 2);
1164     svcname = argv[1];
1165     arg = collapse_cmdname(argv+2, argc-2, cmdname) + 2;
1166     if (!arg) {
1167         reply("MSG_MISSING_PARAMS", cmd->name);
1168         return 0;
1169     }
1170     if (!(service = service_find(svcname))) {
1171         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1172         return 0;
1173     }
1174     if (!(bound = dict_find(service->commands, cmdname, NULL))) {
1175         reply("MCMSG_NO_COMMAND_BOUND", service->bot->nick, cmdname);
1176         return 0;
1177     }
1178     if ((bound->command->flags & MODCMD_KEEP_BOUND) && (bound->command->bind_count == 1)) {
1179         reply("MCMSG_UNBIND_PROHIBITED", bound->command->name);
1180         return 0;
1181     }
1182
1183     for (ii=0; ii<suf_used; ii++)
1184         suf_list[ii](bound);
1185     /* If this command binding is removing itself, we must take care
1186      * not to dereference it after the dict_remove.
1187      */
1188     bot = cmd->parent->bot;
1189     module = cmd->command->parent;
1190     dict_remove(service->commands, bound->name);
1191     send_message(user, bot, "MCMSG_COMMAND_UNBOUND", cmdname, service->bot->nick);
1192     if (service_recheck_bindings(service, module))
1193         send_message(user, bot, "MCMSG_HELPFILE_UNBOUND", module->name, module->name);
1194     return 1;
1195 }
1196
1197 static MODCMD_FUNC(cmd_readhelp) {
1198     const char *modname;
1199     struct module *module;
1200     struct helpfile *old_helpfile;
1201     struct timeval start, stop;
1202
1203     assert(argc > 1);
1204     modname = argv[1];
1205     if (!(module = module_find(modname))) {
1206         reply("MSG_MODULE_UNKNOWN", modname);
1207         return 0;
1208     }
1209     if (!module->helpfile_name) {
1210         reply("MCMSG_NO_HELPFILE", module->name);
1211         return 0;
1212     }
1213     old_helpfile = module->helpfile;
1214     gettimeofday(&start, NULL);
1215     module->helpfile = open_helpfile(module->helpfile_name, module->expand_help);
1216     if (!module->helpfile) {
1217         module->helpfile = old_helpfile;
1218         reply("MCMSG_HELPFILE_ERROR", module->helpfile_name);
1219         return 0;
1220     }
1221     if (old_helpfile) close_helpfile(old_helpfile);
1222     gettimeofday(&stop, NULL);
1223     stop.tv_sec -= start.tv_sec;
1224     stop.tv_usec -= start.tv_usec;
1225     if (stop.tv_usec < 0) {
1226         stop.tv_sec -= 1;
1227         stop.tv_usec += 1000000;
1228     }
1229     reply("MCMSG_HELPFILE_READ", module->name, stop.tv_sec, stop.tv_usec/1000);
1230     return 1;
1231 }
1232
1233 static MODCMD_FUNC(cmd_help) {
1234     const char *topic;
1235
1236     topic = (argc < 2) ? NULL : unsplit_string(argv+1, argc-1, NULL);
1237     return svccmd_send_help_2(user, cmd->parent, topic);
1238 }
1239
1240 static MODCMD_FUNC(cmd_timecmd) {
1241     struct timeval start, stop;
1242     char cmd_text[MAXLEN];
1243
1244     unsplit_string(argv+1, argc-1, cmd_text);
1245     gettimeofday(&start, NULL);
1246     svccmd_invoke(user, cmd->parent, channel, cmd_text, 0);
1247     gettimeofday(&stop, NULL);
1248     stop.tv_sec -= start.tv_sec;
1249     stop.tv_usec -= start.tv_usec;
1250     if (stop.tv_usec < 0) {
1251         stop.tv_sec -= 1;
1252         stop.tv_usec += 1000000;
1253     }
1254     reply("MCMSG_COMMAND_TIME", cmd_text, stop.tv_sec, stop.tv_usec);
1255     return 1;
1256 }
1257
1258 static MODCMD_FUNC(cmd_command) {
1259     struct svccmd *svccmd;
1260     const char *cmd_name, *fmt_str;
1261     unsigned int flags, shown_flags, nn, pos;
1262     char buf[MAXLEN];
1263
1264     assert(argc >= 2);
1265     cmd_name = unsplit_string(argv+1, argc-1, NULL);
1266     if (!(svccmd = svccmd_resolve_name(cmd, cmd_name))) {
1267         reply("MCMSG_UNKNOWN_COMMAND_2", cmd_name, cmd->parent->bot->nick);
1268         return 0;
1269     }
1270     pos = snprintf(buf, sizeof(buf), "%s.%s", svccmd->command->parent->name, svccmd->command->name);
1271     if (svccmd->alias.used) {
1272         buf[pos++] = ' ';
1273         unsplit_string((char**)svccmd->alias.list+1, svccmd->alias.used-1, buf+pos);
1274         reply("MCMSG_COMMAND_ALIASES", svccmd->name, buf);
1275     } else {
1276         reply("MCMSG_COMMAND_BINDING", svccmd->name, buf);
1277     }
1278     flags = svccmd->effective_flags;
1279     if ((svccmd->parent && svccmd->parent->privileged && !IsOper(user))
1280         || ((flags & MODCMD_REQUIRE_STAFF)
1281             && !IsOper(user) && !IsNetworkHelper(user) && !IsSupportHelper(user))) {
1282         reply("MCMSG_INSPECTION_REFUSED", svccmd->name);
1283         return 0;
1284     }
1285     if (flags & MODCMD_DISABLED) {
1286         reply("MSG_COMMAND_DISABLED", svccmd->name);
1287         return 1;
1288     }
1289     shown_flags = 0;
1290     if (svccmd->min_opserv_level > 0) {
1291         reply("MCMSG_NEED_OPSERV_LEVEL", svccmd->min_opserv_level);
1292         shown_flags |= MODCMD_REQUIRE_OPER | MODCMD_REQUIRE_AUTHED;
1293     }
1294     if (svccmd->min_channel_access > 0) {
1295         reply("MCMSG_NEED_CHANSERV_LEVEL", svccmd->min_channel_access);
1296         shown_flags |= MODCMD_REQUIRE_CHANUSER | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1297     }
1298     if (svccmd->req_account_flags) {
1299         for (nn=pos=0; nn<32; nn++) {
1300             if (!(svccmd->req_account_flags & (1 << nn))) continue;
1301             buf[pos++] = HANDLE_FLAGS[nn];
1302         }
1303         buf[pos] = 0;
1304         reply("MCMSG_NEED_ACCOUNT_FLAGS", buf);
1305         shown_flags |= MODCMD_REQUIRE_AUTHED;
1306     }
1307     if (!flags && !shown_flags) {
1308         reply("MCMSG_NEED_NOTHING", svccmd->name);
1309         return 1;
1310     }
1311     if (flags & ~shown_flags & MODCMD_REQUIRE_HELPING) {
1312         reply("MCMSG_MUST_BE_HELPING");
1313         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1314     }
1315     if (flags & ~shown_flags & MODCMD_REQUIRE_STAFF) {
1316         switch (flags & MODCMD_REQUIRE_STAFF) {
1317         default: case MODCMD_REQUIRE_STAFF:
1318             fmt_str = "MCMSG_NEED_STAFF_ACCESS";
1319             break;
1320         case MODCMD_REQUIRE_OPER:
1321             fmt_str = "MCMSG_NEED_STAFF_OPER";
1322             break;
1323         case MODCMD_REQUIRE_NETWORK_HELPER:
1324             fmt_str = "MCMSG_NEED_STAFF_NETHELPER";
1325             break;
1326         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_NETWORK_HELPER:
1327             fmt_str = "MCMSG_NEED_STAFF_NETHELPER_OR_OPER";
1328             break;
1329         case MODCMD_REQUIRE_SUPPORT_HELPER:
1330             fmt_str = "MCMSG_NEED_STAFF_SHELPER";
1331             break;
1332         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_SUPPORT_HELPER:
1333             fmt_str = "MCMSG_NEED_STAFF_SHELPER_OR_OPER";
1334             break;
1335         case MODCMD_REQUIRE_SUPPORT_HELPER|MODCMD_REQUIRE_NETWORK_HELPER:
1336             fmt_str = "MCMSG_NEED_STAFF_HELPER";
1337             break;
1338         }
1339         reply(fmt_str);
1340         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1341     }
1342     if (flags & ~shown_flags & MODCMD_REQUIRE_JOINABLE) {
1343         reply("MCMSG_NEED_JOINABLE");
1344         shown_flags |= MODCMD_REQUIRE_CHANUSER;
1345     }
1346     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANUSER) {
1347         if (flags & ~shown_flags & MODCMD_IGNORE_CSUSPEND)
1348             reply("MCMSG_NEED_CHANUSER_CSUSPENDABLE");
1349         else
1350             reply("MCMSG_NEED_CHANUSER");
1351         shown_flags |= MODCMD_IGNORE_CSUSPEND | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1352     }
1353     if (flags & ~shown_flags & MODCMD_REQUIRE_REGCHAN) {
1354         reply("MCMSG_NEED_REGCHAN");
1355         shown_flags |= MODCMD_REQUIRE_CHANNEL;
1356     }
1357     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANNEL)
1358         reply("MCMSG_NEED_CHANNEL");
1359     if (flags & ~shown_flags & MODCMD_REQUIRE_AUTHED)
1360         reply("MCMSG_NEED_AUTHED");
1361     if (flags & ~shown_flags & MODCMD_TOY)
1362         reply("MCMSG_IS_TOY", svccmd->name);
1363     if (flags & ~shown_flags & MODCMD_REQUIRE_QUALIFIED) {
1364         const char *botnick = svccmd->parent ? svccmd->parent->bot->nick : "SomeBot";
1365         reply("MCMSG_MUST_QUALIFY", botnick, svccmd->name, botnick);
1366     }
1367     reply("MCMSG_END_REQUIREMENTS", svccmd->name);
1368     return 1;
1369 }
1370
1371 static void
1372 modcmd_describe_command(struct userNode *user, struct svccmd *cmd, struct svccmd *target) {
1373     char buf1[MAXLEN], buf2[MAXLEN];
1374     unsigned int ii, len, buf1_used, buf2_used;
1375
1376     if (target->alias.used) {
1377         unsplit_string((char**)target->alias.list, target->alias.used, buf1);
1378         reply("MCMSG_COMMAND_ALIASES", target->name, buf1);
1379     } else {
1380         snprintf(buf1, sizeof(buf1), "%s.%s", target->command->parent->name, target->command->name);
1381         reply("MCMSG_COMMAND_BINDING", target->name, buf1);
1382     }
1383     for (ii = buf1_used = buf2_used = 0; flags[ii].name; ++ii) {
1384         if (target->flags & flags[ii].flag) {
1385             if (buf1_used)
1386                 buf1[buf1_used++] = ',';
1387             len = strlen(flags[ii].name);
1388             memcpy(buf1 + buf1_used, flags[ii].name, len);
1389             buf1_used += len;
1390         } else if (target->effective_flags & flags[ii].flag) {
1391             if (buf2_used)
1392                 buf2[buf2_used++] = ',';
1393             len = strlen(flags[ii].name);
1394             memcpy(buf2 + buf2_used, flags[ii].name, len);
1395             buf2_used += len;
1396         }
1397     }
1398     if (buf1_used)
1399         buf1[buf1_used] = '\0';
1400     else
1401         strcpy(buf1, user_find_message(user, "MSG_NONE"));
1402     if (buf2_used)
1403         buf2[buf2_used] = '\0';
1404     else
1405         strcpy(buf2, user_find_message(user, "MSG_NONE"));
1406     reply("MCMSG_COMMAND_FLAGS", buf1, buf2);
1407     for (ii = buf1_used = buf2_used = 0; handle_flags[ii]; ++ii) {
1408         if (target->req_account_flags & (1 << ii))
1409             buf1[buf1_used++] = handle_flags[ii];
1410         else if (target->deny_account_flags & (1 << ii))
1411             buf2[buf2_used++] = handle_flags[ii];
1412     }
1413     buf1[buf1_used] = buf2[buf2_used] = '\0';
1414     reply("MCMSG_COMMAND_ACCOUNT_FLAGS", buf1, buf2);
1415     reply("MCMSG_COMMAND_ACCESS_LEVEL", target->min_channel_access, target->min_opserv_level);
1416     reply("MCMSG_COMMAND_USES", target->name, target->uses);
1417 }
1418
1419 static MODCMD_FUNC(cmd_modcmd) {
1420     struct svccmd *svccmd;
1421     unsigned int arg, changed;
1422     char cmdname[MAXLEN];
1423
1424     assert(argc >= 2);
1425     arg = collapse_cmdname(argv+1, argc-1, cmdname) + 1;
1426     if (!arg) {
1427         reply("MSG_MISSING_PARAMS", cmd->name);
1428         return 0;
1429     }
1430     if (!(svccmd = svccmd_resolve_name(cmd, cmdname))) {
1431         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, cmd->parent->bot->nick);
1432         return 0;
1433     }
1434     for (changed = 0; arg+1 < argc; arg += 2) {
1435         if (svccmd_configure(svccmd, user, cmd->parent->bot, argv[arg], argv[arg+1])) {
1436             reply("MCMSG_COMMAND_MODIFIED", argv[arg], svccmd->name);
1437             changed = 1;
1438         }
1439     }
1440     if (changed)
1441         modcmd_set_effective_flags(svccmd);
1442     modcmd_describe_command(user, cmd, svccmd);
1443     return changed;
1444 }
1445
1446 static MODCMD_FUNC(cmd_god) {
1447     int helping;
1448
1449     if (argc > 1) {
1450         if (enabled_string(argv[1])) {
1451             if (HANDLE_FLAGGED(user->handle_info, HELPING)) {
1452                 reply("MCMSG_ALREADY_HELPING");
1453                 return 0;
1454             }
1455             helping = 1;
1456         } else if (disabled_string(argv[1])) {
1457             if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
1458                 reply("MCMSG_ALREADY_NOT_HELPING");
1459                 return 0;
1460             }
1461             helping = 0;
1462         } else {
1463             reply("MSG_INVALID_BINARY", argv[1]);
1464             return 0;
1465         }
1466     } else {
1467         helping = !IsHelping(user);
1468     }
1469
1470     if (helping) {
1471         HANDLE_SET_FLAG(user->handle_info, HELPING);
1472         reply("MCMSG_NOW_HELPING");
1473     } else {
1474         HANDLE_CLEAR_FLAG(user->handle_info, HELPING);
1475         reply("MCMSG_NOW_NOT_HELPING");
1476     }
1477
1478     return 1;
1479 }
1480
1481 static MODCMD_FUNC(cmd_joiner) {
1482     char cmdname[80];
1483
1484     if (argc < 2) {
1485         int len = sprintf(cmdname, "%s ", cmd->name);
1486         dict_iterator_t it;
1487         struct string_buffer sbuf;
1488
1489         string_buffer_init(&sbuf);
1490         for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1491             if (!ircncasecmp(iter_key(it), cmdname, len)) {
1492                 if (sbuf.used) string_buffer_append_string(&sbuf, ", ");
1493                 string_buffer_append_string(&sbuf, iter_key(it));
1494             }
1495         }
1496         if (!sbuf.used) string_buffer_append(&sbuf, 0);
1497         reply("MCMSG_JOINER_CHOICES", cmd->name, sbuf.list);
1498         string_buffer_clean(&sbuf);
1499         return 1;
1500     }
1501     sprintf(cmdname, "%s %s", cmd->name, argv[1]);
1502     argv[1] = cmdname;
1503     svccmd_invoke_argv(user, cmd->parent, channel, argc-1, argv+1, 0);
1504     return 0; /* never try to log this; the recursive one logs it */
1505 }
1506
1507 static MODCMD_FUNC(cmd_stats_modules) {
1508     struct helpfile_table tbl;
1509     dict_iterator_t it;
1510     unsigned int ii;
1511     struct module *mod;
1512     struct modcmd *modcmd;
1513
1514     if (argc < 2) {
1515         tbl.length = dict_size(modules) + 1;
1516         tbl.width = 3;
1517         tbl.flags = TABLE_PAD_LEFT;
1518         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1519         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1520         tbl.contents[0][0] = "Module";
1521         tbl.contents[0][1] = "Commands";
1522         tbl.contents[0][2] = "Helpfile";
1523         for (ii=1, it=dict_first(modules); it; it=iter_next(it), ii++) {
1524             mod = iter_data(it);
1525             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1526             tbl.contents[ii][0] = mod->name;
1527             tbl.contents[ii][1] = strtab(dict_size(mod->commands));
1528             tbl.contents[ii][2] = mod->helpfile_name ? mod->helpfile_name : "(none)";
1529         }
1530     } else if (!(mod = dict_find(modules, argv[1], NULL))) {
1531         reply("MCMSG_UNKNOWN_MODULE", argv[1]);
1532         return 0;
1533     } else {
1534         reply("MCMSG_MODULE_INFO", mod->name);
1535         tbl.length = dict_size(mod->commands) + 1;
1536         tbl.width = 3;
1537         tbl.flags = TABLE_PAD_LEFT;
1538         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1539         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1540         tbl.contents[0][0] = "Command";
1541         tbl.contents[0][1] = "Min. Args";
1542         tbl.contents[0][2] = "Bind Count";
1543         for (ii=1, it=dict_first(mod->commands); it; it=iter_next(it), ii++) {
1544             modcmd = iter_data(it);
1545             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1546             tbl.contents[ii][0] = modcmd->name;
1547             tbl.contents[ii][1] = strtab(modcmd->min_argc);
1548             tbl.contents[ii][2] = strtab(modcmd->bind_count);
1549         }
1550     }
1551     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1552     return 0;
1553 }
1554
1555 static MODCMD_FUNC(cmd_stats_services) {
1556     struct helpfile_table tbl;
1557     dict_iterator_t it;
1558     unsigned int ii;
1559     struct service *service;
1560     struct svccmd *svccmd;
1561     char *extra;
1562
1563     if (argc < 2) {
1564         tbl.length = dict_size(services) + 1;
1565         tbl.width = 4;
1566         tbl.flags = TABLE_PAD_LEFT;
1567         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1568         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1569         tbl.contents[0][0] = "Service";
1570         tbl.contents[0][1] = "Commands";
1571         tbl.contents[0][2] = "Priv'd?";
1572         tbl.contents[0][3] = "Trigger";
1573         extra = calloc(2, tbl.length);
1574         for (ii=1, it=dict_first(services); it; it=iter_next(it), ii++) {
1575             service = iter_data(it);
1576             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1577             tbl.contents[ii][0] = service->bot->nick;
1578             tbl.contents[ii][1] = strtab(dict_size(service->commands));
1579             tbl.contents[ii][2] = service->privileged ? "yes" : "no";
1580             extra[ii*2] = service->trigger;
1581             tbl.contents[ii][3] = extra+ii*2;
1582         }
1583         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1584         free(extra);
1585         return 0;
1586     } else if (!(service = dict_find(services, argv[1], NULL))) {
1587         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1588         return 0;
1589     } else {
1590         tbl.length = dict_size(service->commands) + 1;
1591         tbl.width = 5;
1592         tbl.flags = TABLE_PAD_LEFT | TABLE_NO_FREE;
1593         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1594         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1595         tbl.contents[0][0] = "Command";
1596         tbl.contents[0][1] = "Module";
1597         tbl.contents[0][2] = "ModCmd";
1598         tbl.contents[0][3] = "Alias?";
1599         tbl.contents[0][4] = strdup("Uses");
1600         for (ii=1, it=dict_first(service->commands); it; it=iter_next(it), ii++) {
1601             svccmd = iter_data(it);
1602             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1603             tbl.contents[ii][0] = svccmd->name;
1604             tbl.contents[ii][1] = svccmd->command->parent->name;
1605             tbl.contents[ii][2] = svccmd->command->name;
1606             tbl.contents[ii][3] = svccmd->alias.used ? "yes" : "no";
1607             tbl.contents[ii][4] = extra = malloc(12);
1608             sprintf(extra, "%u", svccmd->uses);
1609         }
1610         reply("MCMSG_SERVICE_INFO", service->bot->nick);
1611         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1612         for (ii=0; ii<tbl.length; ii++) {
1613             free((char*)tbl.contents[ii][4]);
1614             free(tbl.contents[ii]);
1615         }
1616         free(tbl.contents);
1617         return 0;
1618     }
1619 }
1620
1621 static MODCMD_FUNC(cmd_showcommands) {
1622     struct svccmd_list commands;
1623     struct helpfile_table tbl;
1624     struct svccmd *svccmd;
1625     dict_iterator_t it;
1626     unsigned int ii, ignore_flags = 0;
1627     unsigned int max_opserv_level = 1000;
1628     unsigned short max_chanserv_level = 500;
1629     char show_opserv_level = 0, show_channel_access = 0;
1630
1631     /* Check to see what the max access they want to see is. */
1632     for (ii=1; ii<argc; ++ii) {
1633         if (isdigit(argv[ii][0]))
1634             max_opserv_level = atoi(argv[ii]);
1635         else
1636             max_chanserv_level = user_level_from_name(argv[ii], UL_OWNER);
1637     }
1638
1639     /* Find the matching commands. */
1640     svccmd_list_init(&commands);
1641     if (cmd->parent->privileged)
1642         ignore_flags = MODCMD_REQUIRE_OPER;
1643     for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1644         svccmd = iter_data(it);
1645         if (strchr(svccmd->name, ' '))
1646             continue;
1647         if (!svccmd_can_invoke(user, svccmd->parent->bot, svccmd, channel, SVCCMD_QUALIFIED))
1648             continue;
1649         if (svccmd->min_opserv_level > max_opserv_level)
1650             continue;
1651         if (svccmd->min_channel_access > max_chanserv_level)
1652             continue;
1653         if (svccmd->min_opserv_level > 0)
1654             show_opserv_level = 1;
1655         if (svccmd->min_channel_access > 0)
1656             show_channel_access = 1;
1657         if (svccmd->effective_flags
1658             & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING)
1659             & ~ignore_flags) {
1660             show_channel_access = 1;
1661         }
1662         svccmd_list_append(&commands, svccmd);
1663     }
1664
1665     /* Build the table. */
1666     tbl.length = commands.used + 1;
1667     tbl.width = 1 + show_opserv_level + show_channel_access;
1668     tbl.flags = TABLE_REPEAT_ROWS;
1669     tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1670     tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1671     tbl.contents[0][ii = 0] = "Command";
1672     if (show_opserv_level)
1673         tbl.contents[0][++ii] = "OpServ Level";
1674     if (show_channel_access)
1675         tbl.contents[0][++ii] = "ChanServ Access";
1676     for (ii=0; ii<commands.used; ++ii) {
1677         svccmd = commands.list[ii];
1678         tbl.contents[ii+1] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1679         tbl.contents[ii+1][0] = svccmd->name;
1680         if (show_opserv_level)
1681             tbl.contents[ii+1][1] = strtab(svccmd->min_opserv_level);
1682         if (show_channel_access) {
1683             const char *access;
1684             int flags = svccmd->effective_flags;
1685             if (flags & MODCMD_REQUIRE_HELPING)
1686                 access = "helping";
1687             else if (flags & MODCMD_REQUIRE_STAFF) {
1688                 switch (flags & MODCMD_REQUIRE_STAFF) {
1689                 case MODCMD_REQUIRE_OPER: access = "oper"; break;
1690                 case MODCMD_REQUIRE_OPER | MODCMD_REQUIRE_NETWORK_HELPER:
1691                 case MODCMD_REQUIRE_NETWORK_HELPER: access = "net.helper"; break;
1692                 default: access = "staff"; break;
1693                 }
1694             } else
1695                 access = strtab(svccmd->min_channel_access);
1696             tbl.contents[ii+1][1+show_opserv_level] = access;
1697         }
1698     }
1699     svccmd_list_clean(&commands);
1700     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1701     return 0;
1702 }
1703
1704 static MODCMD_FUNC(cmd_helpfiles) {
1705     struct service *service;
1706     unsigned int ii;
1707
1708     if (!(service = dict_find(services, argv[1], NULL))) {
1709         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1710         return 0;
1711     }
1712
1713     if (argc < 3) {
1714         for (ii=0; ii<service->modules.used; ++ii)
1715             reply("MCMSG_HELPFILE_SEQUENCE", ii+1, service->modules.list[ii]->name);
1716         return 0;
1717     }
1718
1719     service->modules.used = 0;
1720     for (ii=0; ii<argc-2; ii++) {
1721         struct module *module = dict_find(modules, argv[ii+2], NULL);
1722         if (!module) {
1723             reply("MCMSG_UNKNOWN_MODULE", argv[ii+2]);
1724             continue;
1725         }
1726         module_list_append(&service->modules, module);
1727     }
1728     reply("MCMSG_HELPFILE_SEQUENCE_SET", service->bot->nick);
1729     return 1;
1730 }
1731
1732 static MODCMD_FUNC(cmd_service_add) {
1733     const char *nick, *hostname, *desc;
1734     struct userNode *bot;
1735
1736     nick = argv[1];
1737     if (!is_valid_nick(nick)) {
1738         reply("MCMSG_BAD_SERVICE_NICK", nick);
1739         return 0;
1740     }
1741     hostname = argv[2];
1742     desc = unsplit_string(argv+3, argc-3, NULL);
1743     bot = GetUserH(nick);
1744     if (bot && IsService(bot)) {
1745         reply("MCMSG_ALREADY_SERVICE", bot->nick);
1746         return 0;
1747     }
1748     bot = AddService(nick, desc, hostname);
1749     service_register(bot);
1750     reply("MCMSG_NEW_SERVICE", bot->nick);
1751     return 1;
1752 }
1753
1754 static MODCMD_FUNC(cmd_service_rename) {
1755     struct service *service;
1756
1757     if (!(service = service_find(argv[1]))) {
1758         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1759         return 0;
1760     }
1761     NickChange(service->bot, argv[2], 0);
1762     reply("MCMSG_SERVICE_RENAMED", service->bot->nick);
1763     return 1;
1764 }
1765
1766 static MODCMD_FUNC(cmd_service_trigger) {
1767     struct userNode *bogon;
1768     struct service *service;
1769
1770     if (!(service = service_find(argv[1]))) {
1771         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1772         return 0;
1773     }
1774     if (argc < 3) {
1775         if (service->trigger)
1776             reply("MCMSG_CURRENT_TRIGGER", service->bot->nick, service->trigger);
1777         else
1778             reply("MCMSG_NO_TRIGGER", service->bot->nick);
1779         return 1;
1780     }
1781     if (service->trigger)
1782         reg_chanmsg_func(service->trigger, NULL, NULL);
1783     if (!irccasecmp(argv[2], "none") || !irccasecmp(argv[2], "remove")) {
1784         service->trigger = 0;
1785         reply("MCMSG_REMOVED_TRIGGER", service->bot->nick);
1786     } else if ((bogon = get_chanmsg_bot(argv[2][0]))) {
1787         reply("MCMSG_DUPLICATE_TRIGGER", bogon->nick, argv[2][0]);
1788         return 1;
1789     } else {
1790         service->trigger = argv[2][0];
1791         reg_chanmsg_func(service->trigger, service->bot, modcmd_chanmsg);
1792         reply("MCMSG_NEW_TRIGGER", service->bot->nick, service->trigger);
1793     }
1794     return 1;
1795 }
1796
1797 static MODCMD_FUNC(cmd_service_privileged) {
1798     struct service *service;
1799     const char *newval;
1800
1801     if (!(service = service_find(argv[1]))) {
1802         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1803         return 0;
1804     }
1805     if (argc >= 3)
1806         service->privileged = true_string(argv[2]) || enabled_string(argv[2]);
1807     newval = user_find_message(user, service->privileged ? "MSG_ON" : "MSG_OFF");
1808     reply("MCMSG_SERVICE_PRIVILEGED", service->bot->nick, newval);
1809     return 1;
1810 }
1811
1812 static MODCMD_FUNC(cmd_service_remove) {
1813     char *name, *reason;
1814     struct service *service;
1815
1816     name = argv[1];
1817     if (argc > 2)
1818         reason = unsplit_string(argv+2, argc-2, NULL);
1819     else
1820         reason = "Removing bot";
1821     if (!(service = service_find(name))) {
1822         reply("MCMSG_UNKNOWN_SERVICE", name);
1823         return 0;
1824     }
1825     DelUser(service->bot, NULL, 1, reason);
1826     reply("MCMSG_SERVICE_REMOVED", name);
1827     dict_remove(services, name);
1828     return 1;
1829 }
1830
1831 static MODCMD_FUNC(cmd_dump_messages) {
1832     const char *fname = "strings.db";
1833     struct saxdb_context *ctx;
1834     dict_iterator_t it;
1835     FILE *pf;
1836     int res;
1837
1838     if (!(pf = fopen(fname, "w"))) {
1839         reply("MCMSG_FILE_NOT_OPENED", fname);
1840         return 0;
1841     }
1842     if (!(ctx = saxdb_open_context(pf))) {
1843         reply("MSG_INTERNAL_FAILURE");
1844         return 0;
1845     }
1846     if ((res = setjmp(ctx->jbuf)) != 0) {
1847         ctx->complex.used = 0; /* to avoid false assert()s in close */
1848         saxdb_close_context(ctx);
1849         fclose(pf);
1850         reply("MCMSG_MESSAGE_DUMP_FAILED", strerror(res));
1851         return 0;
1852     } else {
1853         for (it = dict_first(lang_C->messages); it; it = iter_next(it))
1854             saxdb_write_string(ctx, iter_key(it), iter_data(it));
1855         saxdb_close_context(ctx);
1856         fclose(pf);
1857         reply("MCMSG_MESSAGES_DUMPED", fname);
1858         return 1;
1859     }
1860 }
1861
1862 static MODCMD_FUNC(cmd_version) {
1863     /* This function provides copyright management information to end
1864      * users of srvx. You should not alter, disable or remove this
1865      * command or its accessibility to normal IRC users, except to add
1866      * copyright information pertaining to changes you make to srvx.
1867      */
1868     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.");
1869     if ((argc > 1) && !irccasecmp(argv[1], "arch"))
1870         send_message_type(4, user, cmd->parent->bot, "%s", "");
1871     return 1;
1872 }
1873
1874
1875 void
1876 modcmd_nick_change(struct userNode *user, const char *old_nick) {
1877     struct service *svc;
1878     if (!(svc = dict_find(services, old_nick, NULL)))
1879         return;
1880     dict_remove2(services, old_nick, 1);
1881     dict_insert(services, user->nick, svc);
1882 }
1883
1884 void
1885 modcmd_cleanup(void) {
1886     dict_delete(services);
1887     dict_delete(modules);
1888     if (suf_list)
1889         free(suf_list);
1890 }
1891
1892 static void
1893 modcmd_saxdb_write_command(struct saxdb_context *ctx, struct svccmd *cmd) {
1894     char buf[MAXLEN];
1895     unsigned int nn, len, pos;
1896     struct svccmd *template = cmd->command->defaults;
1897
1898     saxdb_start_record(ctx, cmd->name, 0);
1899     sprintf(buf, "%s.%s", cmd->command->parent->name, cmd->command->name);
1900     saxdb_write_string(ctx, "command", buf);
1901     if (cmd->alias.used)
1902         saxdb_write_string_list(ctx, "aliased", &cmd->alias);
1903     if (cmd->min_opserv_level != template->min_opserv_level)
1904         saxdb_write_int(ctx, "oper_access", cmd->min_opserv_level);
1905     if (cmd->min_channel_access != template->min_channel_access)
1906         saxdb_write_int(ctx, "channel_access", cmd->min_channel_access);
1907     if (cmd->flags != template->flags) {
1908         if (cmd->flags) {
1909             for (nn=pos=0; flags[nn].name; ++nn) {
1910                 if (cmd->flags & flags[nn].flag) {
1911                     buf[pos++] = '+';
1912                     len = strlen(flags[nn].name);
1913                     memcpy(buf+pos, flags[nn].name, len);
1914                     pos += len;
1915                     buf[pos++] = ',';
1916                 }
1917             }
1918         } else {
1919             pos = 1;
1920         }
1921         buf[--pos] = 0;
1922         saxdb_write_string(ctx, "flags", buf);
1923     }
1924     if ((cmd->req_account_flags != template->req_account_flags)
1925         || (cmd->deny_account_flags != template->req_account_flags)) {
1926         pos = 0;
1927         if (cmd->req_account_flags) {
1928             buf[pos++] = '+';
1929             for (nn=0; nn<32; nn++)
1930                 if (cmd->req_account_flags & (1 << nn))
1931                     buf[pos++] = handle_flags[nn];
1932         }
1933         if (cmd->deny_account_flags) {
1934             buf[pos++] = '-';
1935             for (nn=0; nn<32; nn++)
1936                 if (cmd->deny_account_flags & (1 << nn))
1937                     buf[pos++] = handle_flags[nn];
1938         }
1939         buf[pos] = 0;
1940         saxdb_write_string(ctx, "account_flags", buf);
1941     }
1942     saxdb_end_record(ctx);
1943 }
1944
1945 static int
1946 modcmd_saxdb_write(struct saxdb_context *ctx) {
1947     struct string_list slist;
1948     dict_iterator_t it, it2;
1949     struct service *service;
1950     unsigned int ii;
1951
1952     saxdb_start_record(ctx, "bots", 1);
1953     for (it = dict_first(services); it; it = iter_next(it)) {
1954         char buff[16];
1955         service = iter_data(it);
1956         saxdb_start_record(ctx, service->bot->nick, 1);
1957         if (service->trigger) {
1958             buff[0] = service->trigger;
1959             buff[1] = '\0';
1960             saxdb_write_string(ctx, "trigger", buff);
1961         }
1962         saxdb_write_string(ctx, "description", service->bot->info);
1963         saxdb_write_string(ctx, "hostname", service->bot->hostname);
1964         if (service->privileged)
1965             saxdb_write_string(ctx, "privileged", "1");
1966         saxdb_end_record(ctx);
1967     }
1968     saxdb_end_record(ctx);
1969
1970     saxdb_start_record(ctx, "services", 1);
1971     for (it = dict_first(services); it; it = iter_next(it)) {
1972         service = iter_data(it);
1973         saxdb_start_record(ctx, service->bot->nick, 1);
1974         for (it2 = dict_first(service->commands); it2; it2 = iter_next(it2))
1975             modcmd_saxdb_write_command(ctx, iter_data(it2));
1976         saxdb_end_record(ctx);
1977     }
1978     saxdb_end_record(ctx);
1979
1980     saxdb_start_record(ctx, "helpfiles", 1);
1981     slist.size = 0;
1982     for (it = dict_first(services); it; it = iter_next(it)) {
1983         service = iter_data(it);
1984         slist.used = 0;
1985         for (ii = 0; ii < service->modules.used; ++ii)
1986             string_list_append(&slist, service->modules.list[ii]->name);
1987         saxdb_write_string_list(ctx, iter_key(it), &slist);
1988     }
1989     if (slist.list)
1990         free(slist.list);
1991     saxdb_end_record(ctx);
1992
1993     return 0;
1994 }
1995
1996 static int
1997 append_entry(const char *key, UNUSED_ARG(void *data), void *extra) {
1998     struct helpfile_expansion *exp = extra;
1999     int row = exp->value.table.length++;
2000     exp->value.table.contents[row] = calloc(1, sizeof(char*));
2001     exp->value.table.contents[row][0] = key;
2002     return 0;
2003 }
2004
2005 static struct helpfile_expansion
2006 modcmd_expand(const char *variable) {
2007     struct helpfile_expansion exp;
2008     extern struct userNode *message_source;
2009     struct service *service;
2010
2011     service = dict_find(services, message_source->nick, NULL);
2012     if (!irccasecmp(variable, "index")) {
2013         exp.type = HF_TABLE;
2014         exp.value.table.length = 1;
2015         exp.value.table.width = 1;
2016         exp.value.table.flags = TABLE_REPEAT_ROWS;
2017         exp.value.table.contents = calloc(dict_size(service->commands)+1, sizeof(char**));
2018         exp.value.table.contents[0] = calloc(1, sizeof(char*));
2019         exp.value.table.contents[0][0] = "Commands:";
2020         dict_foreach(service->commands, append_entry, &exp);
2021         return exp;
2022     } else if (!irccasecmp(variable, "languages")) {
2023         struct string_buffer sbuf;
2024         dict_iterator_t it;
2025         sbuf.used = sbuf.size = 0;
2026         sbuf.list = NULL;
2027         for (it = dict_first(languages); it; it = iter_next(it)) {
2028             string_buffer_append_string(&sbuf, iter_key(it));
2029             string_buffer_append(&sbuf, ' ');
2030         }
2031         sbuf.list[--sbuf.used] = 0;
2032         exp.type = HF_STRING;
2033         exp.value.str = sbuf.list;
2034         return exp;
2035     }
2036     exp.type = HF_STRING;
2037     exp.value.str = NULL;
2038     return exp;
2039 }
2040
2041 static void
2042 modcmd_load_bots(struct dict *db, int default_nick) {
2043     dict_iterator_t it;
2044
2045     for (it = dict_first(db); it; it = iter_next(it)) {
2046         struct record_data *rd;
2047         struct service *svc;
2048         const char *nick, *desc, *hostname;
2049
2050         rd = iter_data(it);
2051         if (rd->type != RECDB_OBJECT) {
2052             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'bots/%s' in modcmd db (expected object).", iter_key(it));
2053             continue;
2054         }
2055         nick = database_get_data(rd->d.object, "nick", RECDB_QSTRING);
2056         if (!nick) {
2057             if (default_nick)
2058                 nick = iter_key(it);
2059             else
2060                 continue;
2061         }
2062         svc = service_find(nick);
2063         desc = database_get_data(rd->d.object, "description", RECDB_QSTRING);
2064         hostname = database_get_data(rd->d.object, "hostname", RECDB_QSTRING);
2065         if (desc) {
2066             if (!svc)
2067                 svc = service_register(AddService(nick, desc, hostname));
2068             else if (hostname)
2069                 strcpy(svc->bot->hostname, hostname);
2070             desc = database_get_data(rd->d.object, "trigger", RECDB_QSTRING);
2071             if (desc)
2072                 svc->trigger = desc[0];
2073             desc = database_get_data(rd->d.object, "privileged", RECDB_QSTRING);
2074             if (desc && (true_string(desc) || enabled_string(desc)))
2075                 svc->privileged = 1;
2076         }
2077     }
2078 }
2079
2080 static void
2081 modcmd_conf_read(void) {
2082     modcmd_load_bots(conf_get_data("services", RECDB_OBJECT), 0);
2083 }
2084
2085 void
2086 modcmd_init(void) {
2087     qsort(flags, ArrayLength(flags)-1, sizeof(flags[0]), flags_qsort);
2088     modules = dict_new();
2089     dict_set_free_data(modules, free_module);
2090     services = dict_new();
2091     dict_set_free_data(services, free_service);
2092     reg_nick_change_func(modcmd_nick_change);
2093     reg_exit_func(modcmd_cleanup);
2094     conf_register_reload(modcmd_conf_read);
2095
2096     modcmd_module = module_register("modcmd", MAIN_LOG, "modcmd.help", modcmd_expand);
2097     bind_command = modcmd_register(modcmd_module, "bind", cmd_bind, 4, MODCMD_KEEP_BOUND, "oper_level", "800", NULL);
2098     help_command = modcmd_register(modcmd_module, "help", cmd_help, 1, 0, "flags", "+nolog", NULL);
2099     modcmd_register(modcmd_module, "command", cmd_command, 2, 0, "flags", "+nolog", NULL);
2100     modcmd_register(modcmd_module, "modcmd", cmd_modcmd, 2, MODCMD_KEEP_BOUND, "template", "bind", NULL);
2101     modcmd_register(modcmd_module, "god", cmd_god, 0, MODCMD_REQUIRE_AUTHED, "flags", "+oper,+networkhelper", NULL);
2102     modcmd_register(modcmd_module, "readhelp", cmd_readhelp, 2, 0, "oper_level", "650", NULL);
2103     modcmd_register(modcmd_module, "timecmd", cmd_timecmd, 2, 0, "oper_level", "1", NULL);
2104     modcmd_register(modcmd_module, "unbind", cmd_unbind, 3, 0, "template", "bind", NULL);
2105     modcmd_register(modcmd_module, "joiner", cmd_joiner, 1, 0, NULL);
2106     modcmd_register(modcmd_module, "stats modules", cmd_stats_modules, 1, 0, "flags", "+oper", NULL);
2107     modcmd_register(modcmd_module, "stats services", cmd_stats_services, 1, 0, "flags", "+oper", NULL);
2108     modcmd_register(modcmd_module, "showcommands", cmd_showcommands, 1, 0, "flags", "+acceptchan", NULL);
2109     modcmd_register(modcmd_module, "helpfiles", cmd_helpfiles, 2, 0, "template", "bind", NULL);
2110     modcmd_register(modcmd_module, "service add", cmd_service_add, 4, 0, "flags", "+oper", NULL);
2111     modcmd_register(modcmd_module, "service rename", cmd_service_rename, 3, 0, "flags", "+oper", NULL);
2112     modcmd_register(modcmd_module, "service trigger", cmd_service_trigger, 2, 0, "flags", "+oper", NULL);
2113     modcmd_register(modcmd_module, "service privileged", cmd_service_privileged, 2, 0, "flags", "+oper", NULL);
2114     modcmd_register(modcmd_module, "service remove", cmd_service_remove, 2, 0, "flags", "+oper", NULL);
2115     modcmd_register(modcmd_module, "dumpmessages", cmd_dump_messages, 1, 0, "oper_level", "1000", NULL);
2116     version_command = modcmd_register(modcmd_module, "version", cmd_version, 1, 0, NULL);
2117     message_register_table(msgtab);
2118 }
2119
2120 static void
2121 modcmd_db_load_command(struct service *service, const char *cmdname, struct dict *obj) {
2122     struct svccmd *svccmd;
2123     struct module *module;
2124     struct modcmd *modcmd;
2125     struct string_list *slist;
2126     const char *str, *sep;
2127     char buf[MAXLEN];
2128
2129     str = database_get_data(obj, "command", RECDB_QSTRING);
2130     if (!str) {
2131         log_module(MAIN_LOG, LOG_ERROR, "Missing command for service %s command %s in modcmd.db", service->bot->nick, cmdname);
2132         return;
2133     }
2134     sep = strchr(str, '.');
2135     if (!sep) {
2136         log_module(MAIN_LOG, LOG_ERROR, "Invalid command %s for service %s command %s in modcmd.db", str, service->bot->nick, cmdname);
2137         return;
2138     }
2139     memcpy(buf, str, sep-str);
2140     buf[sep-str] = 0;
2141     if (!(module = module_find(buf))) {
2142         log_module(MAIN_LOG, LOG_ERROR, "Unknown module %s for service %s command %s in modcmd.db", buf, service->bot->nick, cmdname);
2143         return;
2144     }
2145     if (!(modcmd = dict_find(module->commands, sep+1, NULL))) {
2146         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);
2147         return;
2148     }
2149     /* Now that we know we have a command to use, fill in the basics. */
2150     svccmd = calloc(1, sizeof(*svccmd));
2151     svccmd_insert(service, strdup(cmdname), svccmd, modcmd);
2152     if ((str = database_get_data(obj, "template", RECDB_QSTRING))) {
2153         add_pending_template(svccmd, str);
2154     } else {
2155         svccmd_copy_rules(svccmd, modcmd->defaults);
2156     }
2157     if ((str = database_get_data(obj, "account_flags", RECDB_QSTRING))) {
2158         svccmd->req_account_flags = svccmd->deny_account_flags = 0;
2159         svccmd_configure(svccmd, NULL, service->bot, "account_flags", str);
2160     }
2161     if ((str = database_get_data(obj, "flags", RECDB_QSTRING))) {
2162         svccmd->flags = 0;
2163         svccmd_configure(svccmd, NULL, service->bot, "flags", str);
2164     }
2165     if ((str = database_get_data(obj, "oper_access", RECDB_QSTRING))
2166         || (str = database_get_data(obj, "opserv_level", RECDB_QSTRING))) {
2167         svccmd_configure(svccmd, NULL, service->bot, "oper_access", str);
2168     }
2169     if ((str = database_get_data(obj, "channel_access", RECDB_QSTRING))
2170         || (str = database_get_data(obj, "chanserv_level", RECDB_QSTRING))) {
2171         svccmd_configure(svccmd, NULL, service->bot, "channel_access", str);
2172     }
2173     if ((slist = database_get_data(obj, "aliased", RECDB_STRING_LIST))) {
2174         unsigned int nn;
2175         svccmd->alias.used = svccmd->alias.size = slist->used;
2176         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2177         for (nn=0; nn<slist->used; ++nn)
2178             svccmd->alias.list[nn] = strdup(slist->list[nn]);
2179     }
2180     modcmd_set_effective_flags(svccmd);
2181 }
2182
2183 static struct svccmd *
2184 service_make_alias(struct service *service, const char *alias, ...) {
2185     char *arg, *argv[MAXNUMPARAMS];
2186     unsigned int nn, argc;
2187     struct svccmd *svccmd, *template;
2188     va_list args;
2189
2190     va_start(args, alias);
2191     argc = 0;
2192     while (1) {
2193         arg = va_arg(args, char*);
2194         if (!arg)
2195             break;
2196         argv[argc++] = arg;
2197     }
2198     va_end(args);
2199     svccmd = calloc(1, sizeof(*svccmd));
2200     if (!(template = svccmd_resolve_name(svccmd, argv[0]))) {
2201         log_module(MAIN_LOG, LOG_ERROR, "Invalid base command %s for alias %s in service %s", argv[0], alias, service->bot->nick);
2202         free(svccmd->name);
2203         free(svccmd);
2204         return NULL;
2205     }
2206     if (argc > 1) {
2207         svccmd->alias.used = svccmd->alias.size = argc;
2208         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2209         for (nn=0; nn<argc; nn++)
2210             svccmd->alias.list[nn] = strdup(argv[nn]);
2211     }
2212     svccmd_insert(service, strdup(alias), svccmd, template->command);
2213     svccmd_copy_rules(svccmd, template);
2214     return svccmd;
2215 }
2216
2217 static int saxdb_present;
2218
2219 static int
2220 modcmd_saxdb_read(struct dict *db) {
2221     struct dict *db2;
2222     dict_iterator_t it, it2;
2223     struct record_data *rd, *rd2;
2224     struct service *service;
2225
2226     modcmd_load_bots(database_get_data(db, "bots", RECDB_OBJECT), 1);
2227     db2 = database_get_data(db, "services", RECDB_OBJECT);
2228     if (!db2) {
2229         log_module(MAIN_LOG, LOG_ERROR, "Missing section 'services' in modcmd db.");
2230         return 1;
2231     }
2232     for (it = dict_first(db2); it; it = iter_next(it)) {
2233         rd = iter_data(it);
2234         if (rd->type != RECDB_OBJECT) {
2235             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s' in modcmd db (expected object).", iter_key(it));
2236             continue;
2237         }
2238         if (!(service = service_find(iter_key(it)))) {
2239             log_module(MAIN_LOG, LOG_ERROR, "Unknown service '%s' listed in modcmd db.", iter_key(it));
2240             continue;
2241         }
2242         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2243             rd2 = iter_data(it2);
2244             if (rd2->type != RECDB_OBJECT) {
2245                 log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s/%s' in modcmd db (expected object).", iter_key(it), iter_key(it2));
2246                 continue;
2247             }
2248             modcmd_db_load_command(service, iter_key(it2), rd2->d.object);
2249         }
2250     }
2251     db2 = database_get_data(db, "helpfiles", RECDB_OBJECT);
2252     for (it = dict_first(db2); it; it = iter_next(it)) {
2253         struct module *module;
2254         struct string_list *slist;
2255         unsigned int ii;
2256
2257         rd = iter_data(it);
2258         if (rd->type != RECDB_STRING_LIST) {
2259             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'helpfiles/%s' in modcmd db (expected string list).", iter_key(it));
2260             continue;
2261         }
2262         slist = rd->d.slist;
2263         if (!(service = service_find(iter_key(it)))) {
2264             /* We probably whined about the service being missing above. */
2265             continue;
2266         }
2267         service->modules.used = 0;
2268         for (ii=0; ii<slist->used; ++ii) {
2269             if (!(module = dict_find(modules, slist->list[ii], NULL))) {
2270                 log_module(MAIN_LOG, LOG_ERROR, "Unknown module '%s' listed in modcmd 'helpfiles/%s'.", slist->list[ii], iter_key(it));
2271                 continue;
2272             }
2273             module_list_append(&service->modules, module);
2274         }
2275     }
2276     saxdb_present = 1;
2277     return 0;
2278 }
2279
2280 static void
2281 create_default_binds(void) {
2282     /* Which services should import which modules by default? */
2283     struct {
2284         const char *svcname;
2285         /* C is lame and requires a fixed size for this array.
2286          * Be sure you NULL-terminate each array and increment the
2287          * size here if you add more default modules to any
2288          * service. */
2289         const char *modnames[8];
2290     } def_binds[] = {
2291         { "ChanServ", { "ChanServ", NULL } },
2292         { "Global", { "Global", NULL } },
2293         { "NickServ", { "NickServ", NULL } },
2294         { "OpServ", { "OpServ", "modcmd", "sendmail", "saxdb", "proxycheck", NULL } },
2295         { NULL, { NULL } }
2296     };
2297     unsigned int ii, jj;
2298     char buf[128], *nick;
2299     struct service *service;
2300     struct module *module;
2301
2302     for (ii = 0; def_binds[ii].svcname; ++ii) {
2303         sprintf(buf, "services/%s/nick", def_binds[ii].svcname);
2304         if (!(nick = conf_get_data(buf, RECDB_QSTRING)))
2305             continue;
2306         if (!(service = service_find(nick)))
2307             continue;
2308         if (dict_size(service->commands) > 0)
2309             continue;
2310
2311         /* Bind the default modules for this service to it */
2312         for (jj = 0; def_binds[ii].modnames[jj]; ++jj) {
2313             if (!(module = module_find(def_binds[ii].modnames[jj])))
2314                 continue;
2315             service_bind_module(service, module);
2316         }
2317
2318         /* Bind the help and version commands to this service */
2319         service_bind_modcmd(service, help_command, help_command->name);
2320         service_bind_modcmd(service, version_command, version_command->name);
2321
2322         /* Now some silly hax.. (aliases that most people want) */
2323         if (!irccasecmp(def_binds[ii].svcname, "ChanServ")) {
2324             service_make_alias(service, "addowner", "*chanserv.adduser", "$1", "owner", NULL);
2325             service_make_alias(service, "addcoowner", "*chanserv.adduser", "$1", "coowner", NULL);
2326             service_make_alias(service, "addmanager", "*chanserv.adduser", "$1", "manager", NULL);
2327             service_make_alias(service, "addop", "*chanserv.adduser", "$1", "op", NULL);
2328             service_make_alias(service, "addpeon", "*chanserv.adduser", "$1", "peon", NULL);
2329             service_make_alias(service, "delowner", "*chanserv.deluser", "owner", "$1", NULL);
2330             service_make_alias(service, "delcoowner", "*chanserv.deluser", "coowner", "$1", NULL);
2331             service_make_alias(service, "delmanager", "*chanserv.deluser", "manager", "$1", NULL);
2332             service_make_alias(service, "delop", "*chanserv.deluser", "op", "$1", NULL);
2333             service_make_alias(service, "delpeon", "*chanserv.deluser", "peon", "$1", NULL);
2334             service_make_alias(service, "command", "*modcmd.command", NULL);
2335             service_make_alias(service, "god", "*modcmd.god", NULL);
2336         } else if (!irccasecmp(def_binds[ii].svcname, "OpServ")) {
2337             struct svccmd *svccmd;
2338             svccmd = service_make_alias(service, "stats", "*modcmd.joiner", NULL);
2339             svccmd->min_opserv_level = 101;
2340             svccmd = service_make_alias(service, "service", "*modcmd.joiner", NULL);
2341             svccmd->min_opserv_level = 900;
2342         }
2343     }
2344 }
2345
2346 static void
2347 import_aliases_db() {
2348     struct dict *db;
2349     dict_iterator_t it, it2;
2350     struct record_data *rd, *rd2;
2351     struct service *service;
2352     struct module *module;
2353
2354     if (!(db = parse_database("aliases.db")))
2355         return;
2356     for (it = dict_first(db); it; it = iter_next(it)) {
2357         service = service_find(iter_key(it));
2358         if (!service)
2359             continue;
2360         module = module_find(service->bot->nick);
2361         rd = iter_data(it);
2362         if (rd->type != RECDB_OBJECT)
2363             continue;
2364         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2365             struct modcmd *command;
2366             rd2 = iter_data(it2);
2367             if (rd2->type != RECDB_QSTRING)
2368                 continue;
2369             command = dict_find(module->commands, rd2->d.qstring, NULL);
2370             if (!command)
2371                 continue;
2372             service_bind_modcmd(service, command, iter_key(it2));
2373         }
2374     }
2375 }
2376
2377 void
2378 modcmd_finalize(void) {
2379     dict_iterator_t it;
2380
2381     /* Check databases. */
2382     saxdb_register("modcmd", modcmd_saxdb_read, modcmd_saxdb_write);
2383     create_default_binds();
2384     if (!saxdb_present)
2385         import_aliases_db();
2386
2387     /* Register services for their triggers. */
2388     for (it = dict_first(services); it; it = iter_next(it)) {
2389         struct service *svc = iter_data(it);
2390         if (svc->trigger)
2391             reg_chanmsg_func(svc->trigger, svc->bot, modcmd_chanmsg);
2392     }
2393
2394     /* Resolve command rule-templates. */
2395     while (pending_templates) {
2396         struct pending_template *ptempl = pending_templates;
2397         struct svccmd *svccmd;
2398
2399         pending_templates = ptempl->next;
2400         /* Only overwrite the current template if we have a valid template. */
2401         if (!strcmp(ptempl->base, "*")) {
2402             /* Do nothing. */
2403         } else if ((svccmd = svccmd_resolve_name(ptempl->cmd, ptempl->base))) {
2404             svccmd_copy_rules(ptempl->cmd, svccmd);
2405         } else {
2406             assert(ptempl->cmd->parent);
2407             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);
2408         }
2409         free(ptempl->base);
2410         free(ptempl);
2411     }
2412 }