src/modcmd.c

   1 /* modcmd.c - Generalized module command support
   2  * Copyright 2002-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * x3 is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "../ChangeLog"
  22 #include "chanserv.h"
  23 #include "conf.h"
  24 #include "compat.h"
  25 #include "modcmd.h"
  26 #include "opserv.h"
  27 #include "saxdb.h"
  28 #include "timeq.h"
  29
  30
  31 struct pending_template {
  32     struct svccmd *cmd;
  33     char *base;
  34     struct pending_template *next;
  35 };
  36
  37 extern unsigned long god_timeout;
  38 static struct dict *modules;
  39 static struct dict *services;
  40 static struct pending_template *pending_templates;
  41 static struct module *modcmd_module;
  42 static struct modcmd *bind_command, *help_command, *version_command, *credits_command;
  43 static const struct message_entry msgtab[] = {
  44     { "MCMSG_BARE_FLAG", "Flag %.*s must be preceded by a + or -." },
  45     { "MCMSG_UNKNOWN_FLAG", "Unknown module flag %.*s." },
  46     { "MCMSG_BAD_OPSERV_LEVEL", "Invalid $O access level %s." },
  47     { "MCMSG_BAD_CHANSERV_LEVEL", "Invalid $C access level %s." },
  48     { "MCMSG_LEVEL_TOO_LOW", "You cannot set the access requirements for %s (your level is too low.)" },
  49     { "MCMSG_LEVEL_TOO_HIGH", "You cannot set the access requirements to %s (that is too high)." },
  50     { "MCMSG_BAD_OPTION", "Unknown option %s." },
  51     { "MCMSG_MUST_QUALIFY", "You $bMUST$b \"/msg %s@$s %s\" (not just /msg %s)." },
  52     { "MCMSG_ACCOUNT_SUSPENDED", "Your account has been suspended." },
  53     { "MCMSG_CHAN_NOT_REGISTERED", "%s has not been registered with $C." },
  54     { "MCMSG_CHAN_SUSPENDED", "$b$C$b access to $b%s$b has been temporarily suspended (%s)." },
  55     { "MCMSG_NO_CHANNEL_ACCESS", "You lack access to %s." },
  56     { "MCMSG_LOW_CHANNEL_ACCESS", "You lack sufficient access in %s to use this command." },
  57     { "MCMSG_REQUIRES_JOINABLE", "You must be in %s (or on its userlist) to use this command." },
  58     { "MCMSG_MUST_BE_HELPING", "You must have security override (helping mode) on to use this command." },
  59     { "MCMSG_MISSING_COMMAND", "You must specify a command as well as a channel." },
  60     { "MCMSG_NO_CHANNEL_BEFORE", "You may not give a channel name before this command." },
  61     { "MCMSG_NO_PLUS_CHANNEL", "You may not use a +channel with this command." },
  62     { "MCMSG_COMMAND_ALIASES", "%s is an alias for: %s" },
  63     { "MCMSG_HELP_COMMAND_ALIAS", "$uAlias for:$u %s" },
  64     { "MCMSG_HELP_COMMAND_HEADER", "Command help for: $b%s$b" },
  65     { "MCMSG_HELP_COMMAND_UNKNOWN", "No help available for that command." },
  66     { "MCMSG_HELP_TOPIC_HEADER",   "Help topic: $b%s$b" },
  67     { "MCMSG_HELP_DIVIDER", "=---------------------------------------=" },
  68     { "MCMSG_HELP_FOOTER",  "=------------- End of Help -------------=" },
  69     { "MCMSG_COMMAND_BINDING", "%s is a binding of: %s" },
  70     { "MCMSG_ALIAS_ERROR", "Error in alias expansion for %s; check the error log for details." },
  71     { "MCMSG_INTERNAL_COMMAND", "$b%s$b is an internal command and cannot be called directly; please check command bindings." },
  72     { "MCMSG_UNKNOWN_MODULE", "Unknown module %s." },
  73     { "MCMSG_UNKNOWN_SERVICE", "Unknown service %s." },
  74     { "MCMSG_ALREADY_BOUND", "%s already has a command bound as %s." },
  75     { "MCMSG_UNKNOWN_COMMAND_2", "Unknown command name %s (relative to service %s)." },
  76     { "MCMSG_COMMAND_MODIFIED", "Option $b%s$b for $b%s$b has been set." },
  77     { "MCMSG_INSPECTION_REFUSED", "You do not have access to inspect command %s." },
  78     { "MCMSG_CANNOT_DOUBLE_ALIAS", "You cannot bind to a complex (argument-carrying) bind." },
  79     { "MCMSG_BAD_ALIAS_ARGUMENT", "Invalid alias argument $b%s$b." },
  80     { "MCMSG_COMMAND_BOUND", "New command %s bound to %s." },
  81     { "MCMSG_MODULE_BOUND", "Bound %d commands from %s to %s." },
  82     { "MCMSG_NO_COMMAND_BOUND", "%s has nothing bound as command %s." },
  83     { "MCMSG_UNBIND_PROHIBITED", "It wouldn't be very much fun to unbind the last %s command, now would it?" },
  84     { "MCMSG_COMMAND_UNBOUND", "Unbound command %s from %s." },
  85     { "MCMSG_HELPFILE_UNBOUND", "Since that was the last command from module %s on the service, the helpfile for %s was removed." },
  86     { "MCMSG_NO_HELPFILE", "Module %s does not have a help file." },
  87     { "MCMSG_HELPFILE_ERROR", "Syntax error reading %s; help contents not changed." },
  88     { "MCMSG_HELPFILE_READ", "Read %s help database in "FMT_TIME_T".%03lu seconds." },
  89     { "MCMSG_COMMAND_TIME", "Command $b%s$b finished in "FMT_TIME_T".%06lu seconds." },
  90     { "MCMSG_NEED_OPSERV_LEVEL", "You must have $O access of at least $b%u$b." },
  91     { "MCMSG_NEED_CHANSERV_LEVEL", "You must have $C access of at least $b%u$b in the channel." },
  92     { "MCMSG_NEED_ACCOUNT_FLAGS", "You must have account flags $b%s$b." },
  93     { "MCMSG_NEED_NOTHING", "Anyone may use the $b%s$b command." },
  94     { "MCMSG_NEED_STAFF_ACCESS", "You must be network staff." },
  95     { "MCMSG_NEED_STAFF_OPER", "You must be an IRC operator." },
  96     { "MCMSG_NEED_STAFF_NETHELPER", "You must be a network helper." },
  97     { "MCMSG_NEED_STAFF_NETHELPER_OR_OPER", "You must be a network helper or IRC operator." },
  98     { "MCMSG_NEED_STAFF_SHELPER", "You must be a support helper." },
  99     { "MCMSG_NEED_STAFF_SHELPER_OR_OPER", "You must be a support helper or IRC operator." },
 100     { "MCMSG_NEED_STAFF_HELPER", "You must be a network or support helper." },
 101     { "MCMSG_NEED_JOINABLE", "The channel must be open or you must be in the channel or on its userlist." },
 102     { "MCMSG_NEED_CHANUSER_CSUSPENDABLE", "You must be on the channel's userlist, and the channel can be suspended." },
 103     { "MCMSG_NEED_CHANUSER", "You must be on the channel's userlist." },
 104     { "MCMSG_NEED_REGCHAN", "You must specify a channel registered with $C." },
 105     { "MCMSG_NEED_CHANNEL", "You must specify a channel that exists." },
 106     { "MCMSG_NEED_AUTHED", "You must be authenticated with $N." },
 107     { "MCMSG_IS_TOY", "$b%s$b is a toy command." },
 108     { "MCMSG_END_REQUIREMENTS", "End of requirements for $b%s$b." },
 109     { "MCMSG_ALREADY_HELPING", "You already have security override enabled." },
 110     { "MCMSG_ALREADY_NOT_HELPING", "You already have security override disabled." },
 111     { "MCMSG_NOW_HELPING", "Security override has been enabled." },
 112     { "MCMSG_NOW_NOT_HELPING", "Security override has been disabled." },
 113     { "MCMSG_JOINER_CHOICES", "Subcommands of %s: %s" },
 114     { "MCMSG_MODULE_INFO", "Commands exported by module $b%s$b:" },
 115     { "MCMSG_SERVICE_INFO", "Commands bound to service $b%s$b:" },
 116     { "MCMSG_TOYS_DISABLED", "Toys are disabled in %s." },
 117     { "MCMSG_PUBLIC_DENY", "Public commands in $b%s$b are restricted." },
 118     { "MCMSG_HELPFILE_SEQUENCE", "Help priority %d: %s" },
 119     { "MCMSG_HELPFILE_SEQUENCE_SET", "Set helpfile priority sequence for %s." },
 120     { "MCMSG_BAD_SERVICE_NICK", "$b%s$b is an invalid nickname." },
 121     { "MCMSG_ALREADY_SERVICE", "$b%s$b is already a service." },
 122     { "MCMSG_NEW_SERVICE", "Added new service bot $b%s$b." },
 123     { "MCMSG_SERVICE_RENAMED", "Service renamed to $b%s$b." },
 124     { "MCMSG_NO_TRIGGER", "$b%s$b does not have an in-channel trigger." },
 125     { "MCMSG_REMOVED_TRIGGER", "Removed trigger from $b%s$b." },
 126     { "MCMSG_DUPLICATE_TRIGGER", "$b%s$b already uses trigger $b%c$b." },
 127     { "MCMSG_CURRENT_TRIGGER", "Trigger for $b%s$b is $b%c$b." },
 128     { "MCMSG_NEW_TRIGGER", "Changed trigger for $b%s$b to $b%c$b." },
 129     { "MCMSG_SERVICE_PRIVILEGED", "Service $b%s$b privileged: $b%s$b." },
 130     { "MCMSG_SERVICE_REMOVED", "Service $b%s$b has been deleted." },
 131     { "MCMSG_FILE_NOT_OPENED", "Unable to open file $b%s$b for writing." },
 132     { "MCMSG_MESSAGES_DUMPED", "Messages written to $b%s$b." },
 133     { "MCMSG_MESSAGE_DUMP_FAILED", "Message dump failed: %s." },
 134     { "MCMSG_COMMAND_FLAGS", "Command flags are %s (inferred: %s)." },
 135     { "MCMSG_COMMAND_ACCOUNT_FLAGS", "Requires account flags +%s, prohibits account flags +%s." },
 136     { "MCMSG_COMMAND_ACCESS_LEVEL", "Requires channel access %d and $O access %d." },
 137     { "MCMSG_COMMAND_USES", "%s has been used %d times." },
 138     { "MCMSG_GOD_EXPIRED", "Security override expired." },
 139     { NULL, NULL }
 140 };
 141 struct userData *_GetChannelUser(struct chanData *channel, struct handle_info *handle, int override, int allow_suspended);
 142
 143 #define ACTION_ALLOW     1
 144 #define ACTION_OVERRIDE  2
 145 #define ACTION_NOCHANNEL 4
 146 #define ACTION_STAFF     8
 147
 148 #define RESOLVE_DEPTH    4
 149
 150 static struct modcmd_flag {
 151     const char *name;
 152     unsigned int flag;
 153 } modcmd_flags[] = {
 154     { "acceptchan", MODCMD_ACCEPT_CHANNEL },
 155     { "acceptpluschan", MODCMD_ACCEPT_PCHANNEL },
 156     { "authed", MODCMD_REQUIRE_AUTHED },
 157     { "channel", MODCMD_REQUIRE_CHANNEL },
 158     { "chanuser", MODCMD_REQUIRE_CHANUSER },
 159     { "disabled", MODCMD_DISABLED },
 160     { "helping", MODCMD_REQUIRE_HELPING },
 161     { "ignore_csuspend", MODCMD_IGNORE_CSUSPEND },
 162     { "joinable", MODCMD_REQUIRE_JOINABLE },
 163     { "keepbound", MODCMD_KEEP_BOUND },
 164     { "loghostmask", MODCMD_LOG_HOSTMASK },
 165     { "networkhelper", MODCMD_REQUIRE_NETWORK_HELPER },
 166     { "never_csuspend", MODCMD_NEVER_CSUSPEND },
 167     { "nolog", MODCMD_NO_LOG },
 168     { "oper", MODCMD_REQUIRE_OPER },
 169     { "qualified", MODCMD_REQUIRE_QUALIFIED },
 170     { "regchan", MODCMD_REQUIRE_REGCHAN },
 171     { "supporthelper", MODCMD_REQUIRE_SUPPORT_HELPER },
 172     { "toy", MODCMD_TOY },
 173     { NULL, 0 }
 174 };
 175
 176 static int
 177 flags_bsearch(const void *a, const void *b) {
 178     const char *key = a;
 179     const struct modcmd_flag *flag = b;
 180     return ircncasecmp(key, flag->name, strlen(flag->name));
 181 }
 182
 183 static int
 184 flags_qsort(const void *a, const void *b) {
 185     const struct modcmd_flag *fa = a, *fb = b;
 186     return irccasecmp(fa->name, fb->name);
 187 }
 188
 189 DEFINE_LIST(svccmd_list, struct svccmd*)
 190 DEFINE_LIST(module_list, struct module*)
 191
 192 static void
 193 free_service_command(void *data) {
 194     struct svccmd *svccmd;
 195     unsigned int nn;
 196
 197     svccmd = data;
 198     if (svccmd->alias.used) {
 199         for (nn=0; nn<svccmd->alias.used; ++nn)
 200             free(svccmd->alias.list[nn]);
 201         free(svccmd->alias.list);
 202     }
 203     free(svccmd->name);
 204     free(svccmd);
 205 }
 206
 207 static void
 208 free_service(void *data) {
 209     struct service *service = data;
 210     dict_delete(service->commands);
 211     module_list_clean(&service->modules);
 212     free(service);
 213 }
 214
 215 static void
 216 free_module_command(void *data) {
 217     struct modcmd *modcmd = data;
 218     free_service_command(modcmd->defaults);
 219     free(modcmd->name);
 220     free(modcmd);
 221 }
 222
 223 static void
 224 free_module(void *data) {
 225     struct module *module = data;
 226     dict_delete(module->commands);
 227     close_helpfile(module->helpfile);
 228     free(module->name);
 229     free(module);
 230 }
 231
 232 struct module *
 233 module_register(const char *name, struct log_type *clog, const char *helpfile_name, expand_func_t expand_help) {
 234     struct module *newmod;
 235
 236     newmod = calloc(1, sizeof(*newmod));
 237     newmod->name = strdup(name);
 238     newmod->commands = dict_new();
 239     dict_set_free_data(newmod->commands, free_module_command);
 240     newmod->clog = clog;
 241     newmod->helpfile_name = helpfile_name;
 242     newmod->expand_help = expand_help;
 243     if (newmod->helpfile_name) {
 244         newmod->helpfile = open_helpfile(newmod->helpfile_name, newmod->expand_help);
 245     }
 246     dict_insert(modules, newmod->name, newmod);
 247     return newmod;
 248 }
 249
 250 struct module *
 251 module_find(const char *name) {
 252     return dict_find(modules, name, NULL);
 253 }
 254
 255 static void
 256 add_pending_template(struct svccmd *cmd, const char *target) {
 257     struct pending_template *pending = calloc(1, sizeof(*pending));
 258     pending->cmd = cmd;
 259     pending->base = strdup(target);
 260     pending->next = pending_templates;
 261     pending_templates = pending;
 262 }
 263
 264 struct svccmd *
 265 svccmd_resolve_name(struct svccmd *origin, const char *name) {
 266     char *sep, svcname[MAXLEN];
 267
 268     if ((sep = strchr(name, '.'))) {
 269         memcpy(svcname, name, sep-name);
 270         svcname[sep-name] = 0;
 271         name = sep + 1;
 272         if (svcname[0] == '*') {
 273             struct module *module = module_find(svcname+1);
 274             struct modcmd *cmd = module ? dict_find(module->commands, name, NULL) : NULL;
 275             return cmd ? cmd->defaults : NULL;
 276         } else {
 277             struct service *service = service_find(svcname);
 278             return service ? dict_find(service->commands, name, NULL) : NULL;
 279         }
 280     } else {
 281         if (origin->parent) {
 282             return dict_find(origin->parent->commands, name, NULL);
 283         } else {
 284             struct modcmd *cmd = dict_find(origin->command->parent->commands, name, NULL);
 285             return cmd ? cmd->defaults : NULL;
 286         }
 287     }
 288 }
 289
 290 static void
 291 modcmd_set_effective_flags(struct svccmd *cmd) {
 292     int flags = cmd->flags | cmd->command->flags;
 293     if (cmd->min_opserv_level > 0)
 294         flags |= MODCMD_REQUIRE_OPER;
 295     if (cmd->min_channel_access > 0)
 296         flags |= MODCMD_REQUIRE_CHANUSER;
 297     if (flags & MODCMD_REQUIRE_CHANUSER)
 298         flags |= MODCMD_REQUIRE_REGCHAN;
 299     if (flags & MODCMD_REQUIRE_REGCHAN)
 300         flags |= MODCMD_REQUIRE_CHANNEL;
 301     if (flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))
 302         flags |= MODCMD_REQUIRE_AUTHED;
 303     cmd->effective_flags = flags;
 304 }
 305
 306 static void
 307 svccmd_copy_rules(struct svccmd *dest, struct svccmd *src) {
 308     dest->flags |= src->flags;
 309     dest->req_account_flags |= src->req_account_flags;
 310     dest->deny_account_flags |= src->deny_account_flags;
 311     if (src->min_opserv_level > dest->min_opserv_level)
 312         dest->min_opserv_level = src->min_opserv_level;
 313     if (src->min_channel_access > dest->min_channel_access)
 314         dest->min_channel_access = src->min_channel_access;
 315     modcmd_set_effective_flags(dest);
 316 }
 317
 318 static int
 319 svccmd_configure(struct svccmd *cmd, struct userNode *user, struct userNode *bot, const char *param, const char *value) {
 320     if (!irccasecmp(param, "flags")) {
 321         unsigned int set_flags, rem_flags;
 322         struct modcmd_flag *flag;
 323         int opt, end;
 324
 325         for (set_flags = rem_flags = 0; 1; value += end) {
 326             end = strcspn(value, ",");
 327             if (*value == '+')
 328                 opt = 1;
 329             else if (*value == '-')
 330                 opt = 0;
 331             else {
 332                 if (user)
 333                     send_message(user, bot, "MCMSG_BARE_FLAG", end, value);
 334                 else
 335                     log_module(MAIN_LOG, LOG_ERROR, "Flag %.*s must be preceded by a + or - (for command %s).", end, value, cmd->name);
 336                 return 0;
 337             }
 338             value++;
 339             flag = bsearch(value, modcmd_flags, ArrayLength(modcmd_flags)-1, sizeof(modcmd_flags[0]), flags_bsearch);
 340             if (!flag) {
 341                 if (user)
 342                     send_message(user, bot, "MCMSG_UNKNOWN_FLAG", end, value);
 343                 else
 344                     log_module(MAIN_LOG, LOG_ERROR, "Unknown module flag %.*s (for command %s).", end, value, cmd->name);
 345                 return 0;
 346             }
 347             if (opt)
 348                 set_flags |= flag->flag, rem_flags &= ~flag->flag;
 349             else
 350                 rem_flags |= flag->flag, set_flags &= ~flag->flag;
 351             if (!value[end-1])
 352                 break;
 353         }
 354         cmd->flags = (cmd->flags | set_flags) & ~rem_flags;
 355         return 1;
 356     } else if (!irccasecmp(param, "channel_level") || !irccasecmp(param, "channel_access") || !irccasecmp(param, "access")) {
 357         unsigned short ul;
 358         if (!irccasecmp(value, "none") || !irccasecmp(value, "0")) {
 359             cmd->min_channel_access = 0;
 360             return 1;
 361         } else if ((ul = user_level_from_name(value, UL_OWNER)) > 0) {
 362             cmd->min_channel_access = ul;
 363             return 1;
 364         } else if (user) {
 365             send_message(user, bot, "MCMSG_BAD_CHANSERV_LEVEL", value);
 366             return 0;
 367         } else {
 368             log_module(MAIN_LOG, LOG_ERROR, "Invalid ChanServ access level %s (for command %s).", value, cmd->name);
 369             return 0;
 370         }
 371     } else if (!irccasecmp(param, "oper_level") || !irccasecmp(param, "oper_access") || !irccasecmp(param, "level")) {
 372         unsigned int newval = atoi(value);
 373         if (!isdigit(value[0]) || (newval > 1000)) {
 374             if (user)
 375                 send_message(user, bot, "MCMSG_BAD_OPSERV_LEVEL", value);
 376             else
 377                 log_module(MAIN_LOG, LOG_ERROR, "Invalid OpServ access level %s (for command %s).", value, cmd->name);
 378             return 0;
 379         }
 380         if (user && (!user->handle_info || (cmd->min_opserv_level > user->handle_info->opserv_level))) {
 381             send_message(user, bot, "MCMSG_LEVEL_TOO_LOW", cmd->name);
 382             return 0;
 383         }
 384         if (user && (!user->handle_info || (newval > user->handle_info->opserv_level))) {
 385             send_message(user, bot, "MCMSG_LEVEL_TOO_HIGH", value);
 386             return 0;
 387         }
 388         cmd->min_opserv_level = newval;
 389         return 1;
 390     } else if (!irccasecmp(param, "account_flags")) {
 391         return nickserv_modify_handle_flags(user, bot, value, &cmd->req_account_flags, &cmd->deny_account_flags);
 392     } else {
 393         if (user)
 394             send_message(user, bot, "MCMSG_BAD_OPTION", param);
 395         else
 396             log_module(MAIN_LOG, LOG_ERROR, "Unknown option %s (for command %s).", param, cmd->name);
 397         return 0;
 398     }
 399 }
 400
 401 struct modcmd *
 402 modcmd_register(struct module *module, const char *name, modcmd_func_t func, unsigned int min_argc, unsigned int flags, ...) {
 403     struct modcmd *newcmd;
 404     va_list args;
 405     const char *param, *value;
 406
 407     newcmd = calloc(1, sizeof(*newcmd));
 408     newcmd->name = strdup(name);
 409     newcmd->parent = module;
 410     newcmd->func = func;
 411     newcmd->min_argc = min_argc;
 412     newcmd->flags = flags;
 413     newcmd->defaults = calloc(1, sizeof(*newcmd->defaults));
 414     newcmd->defaults->name = strdup(newcmd->name);
 415     newcmd->defaults->command = newcmd;
 416     dict_insert(module->commands, newcmd->name, newcmd);
 417     if (newcmd->flags & (MODCMD_REQUIRE_REGCHAN|MODCMD_REQUIRE_CHANNEL|MODCMD_REQUIRE_CHANUSER|MODCMD_REQUIRE_JOINABLE)) {
 418         newcmd->defaults->flags |= MODCMD_ACCEPT_CHANNEL;
 419     }
 420     if (newcmd->flags & MODCMD_REQUIRE_STAFF) {
 421         newcmd->defaults->flags |= MODCMD_REQUIRE_AUTHED;
 422     }
 423     va_start(args, flags);
 424     while ((param = va_arg(args, const char*))) {
 425         value = va_arg(args, const char*);
 426         if (!irccasecmp(param, "template")) {
 427             struct svccmd *svccmd = svccmd_resolve_name(newcmd->defaults, value);
 428             if (svccmd) {
 429                 svccmd_copy_rules(newcmd->defaults, svccmd);
 430             } else {
 431                 log_module(MAIN_LOG, LOG_ERROR, "Unable to resolve template name %s for %s.%s.", value, newcmd->parent->name, newcmd->name);
 432             }
 433             add_pending_template(newcmd->defaults, value);
 434         } else {
 435             svccmd_configure(newcmd->defaults, NULL, NULL, param, value);
 436         }
 437     }
 438     modcmd_set_effective_flags(newcmd->defaults);
 439     va_end(args);
 440     return newcmd;
 441 }
 442
 443 /* This is kind of a lame hack, but it is actually simpler than having
 444  * the permission check vary based on the command itself, or having a
 445  * more generic rule system.
 446  */
 447 int
 448 svccmd_can_invoke(struct userNode *user, struct userNode *bot, struct svccmd *cmd, struct chanNode *channel, int options) {
 449     extern struct userNode *chanserv;
 450     unsigned int uData_checked = 0;
 451     struct userData *uData = NULL;
 452     int rflags = 0, flags = cmd->effective_flags;
 453
 454     if (flags & MODCMD_DISABLED) {
 455         if (options & SVCCMD_NOISY)
 456             send_message(user, bot, "MSG_COMMAND_DISABLED", cmd->name);
 457         return 0;
 458     }
 459     if ((flags & MODCMD_REQUIRE_QUALIFIED) && !(options & SVCCMD_QUALIFIED)) {
 460         if (options & SVCCMD_NOISY)
 461             send_message(user, bot, "MCMSG_MUST_QUALIFY", bot->nick, cmd->name, bot->nick);
 462         return 0;
 463     }
 464     if (flags & MODCMD_REQUIRE_AUTHED) {
 465         if (!user->handle_info) {
 466             if (options & SVCCMD_NOISY)
 467                 send_message(user, bot, "MSG_AUTHENTICATE");
 468             return 0;
 469         }
 470         if (HANDLE_FLAGGED(user->handle_info, SUSPENDED)) {
 471             if (options & SVCCMD_NOISY)
 472                 send_message(user, bot, "MCMSG_ACCOUNT_SUSPENDED");
 473             return 0;
 474         }
 475     }
 476     if (channel || (options & SVCCMD_NOISY)) {
 477         if ((flags & MODCMD_REQUIRE_CHANNEL) && !channel) {
 478             if (options & SVCCMD_NOISY)
 479                 send_message(user, bot, "MSG_INVALID_CHANNEL");
 480             return 0;
 481         }
 482         if (flags & MODCMD_REQUIRE_REGCHAN) {
 483             if (!chanserv) {
 484                 /* Just use the inferred MODCMD_REQUIRE_CHANNEL. */
 485             } else if (!channel->channel_info) {
 486                 if (options & SVCCMD_NOISY)
 487                     send_message(user, bot, "MCMSG_CHAN_NOT_REGISTERED", channel->name);
 488                 return 0;
 489             } else if (IsSuspended(channel->channel_info) && !(flags & MODCMD_IGNORE_CSUSPEND)) {
 490                 /* Allow security-override users to ignore most channel
 491                  * suspensions, but flag that use as a staff command.
 492                  */
 493                 if (!IsHelping(user) || (flags & MODCMD_NEVER_CSUSPEND)) {
 494                     if (options & SVCCMD_NOISY)
 495                         send_message(user, bot, "MCMSG_CHAN_SUSPENDED", channel->name, channel->channel_info->suspended->reason);
 496                     return 0;
 497                 }
 498                 rflags |= ACTION_STAFF;
 499             }
 500         }
 501         if (flags & MODCMD_REQUIRE_CHANUSER) {
 502             if (!uData_checked)
 503                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 504             if (!chanserv) {
 505                 /* Assume someone knows what they're doing. */
 506             } else if (!uData) {
 507                 if (options & SVCCMD_NOISY)
 508                     send_message(user, bot, "MCMSG_NO_CHANNEL_ACCESS", channel->name);
 509                 return 0;
 510             } else if (uData->access < cmd->min_channel_access) {
 511                 if (options & SVCCMD_NOISY)
 512                     send_message(user, bot, "MCMSG_LOW_CHANNEL_ACCESS", channel->name);
 513                 return 0;
 514             }
 515         }
 516         if ((flags & MODCMD_REQUIRE_JOINABLE) && channel) {
 517             if (!uData_checked)
 518                 uData = _GetChannelUser(channel->channel_info, user->handle_info, 1, 0), uData_checked = 1;
 519             if ((channel->modes & (MODE_INVITEONLY|MODE_KEY|MODE_SECRET))
 520                 && !uData
 521                 && !IsService(user)
 522                 && !GetUserMode(channel, user)) {
 523                 if (options & SVCCMD_NOISY)
 524                     send_message(user, bot, "MCMSG_REQUIRES_JOINABLE", channel->name);
 525                 return 0;
 526             }
 527         }
 528         if ((flags & MODCMD_TOY) && channel) {
 529             if (!channel->channel_info)
 530                 rflags |= ACTION_NOCHANNEL;
 531             else switch (channel->channel_info->chOpts[chToys]) {
 532             case 'd':
 533                 if (options & SVCCMD_NOISY)
 534                     send_message(user, bot, "MCMSG_TOYS_DISABLED", channel->name);
 535                 return 0;
 536             case 'n':
 537                 rflags |= ACTION_NOCHANNEL;
 538                 break;
 539             case 'p':
 540                 break;
 541             }
 542         }
 543     }
 544     if (flags & MODCMD_REQUIRE_STAFF) {
 545         if (((flags & MODCMD_REQUIRE_OPER) && IsOper(user))
 546             || ((flags & MODCMD_REQUIRE_NETWORK_HELPER) && IsNetworkHelper(user))
 547             || ((flags & MODCMD_REQUIRE_SUPPORT_HELPER) && IsSupportHelper(user))) {
 548             /* allow it */
 549             rflags |= ACTION_STAFF;
 550         } else {
 551             if (options & SVCCMD_NOISY)
 552                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 553             return 0;
 554         }
 555     }
 556     if (flags & MODCMD_REQUIRE_HELPING) {
 557         if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
 558             if (options & SVCCMD_NOISY)
 559                 send_message(user, bot, "MCMSG_MUST_BE_HELPING");
 560             return 0;
 561         }
 562         rflags |= ACTION_STAFF;
 563     }
 564     if (cmd->min_opserv_level > 0) {
 565         if (!oper_has_access(user, bot, cmd->min_opserv_level, !(options & SVCCMD_NOISY)))
 566           return 0;
 567         rflags |= ACTION_STAFF;
 568     }
 569     if (cmd->req_account_flags || cmd->deny_account_flags) {
 570         if (!user->handle_info) {
 571             if (options & SVCCMD_NOISY)
 572                 send_message(user, bot, "MSG_AUTHENTICATE");
 573             return 0;
 574         }
 575         /* Do we want separate or different messages here? */
 576         if ((cmd->req_account_flags & ~user->handle_info->flags)
 577             || (cmd->deny_account_flags & user->handle_info->flags)) {
 578             if (options & SVCCMD_NOISY)
 579                 send_message(user, bot, "MSG_COMMAND_PRIVILEGED", cmd->name);
 580             return 0;
 581         }
 582     }
 583
 584     /* If it's an override, return a special value. */
 585     if ((flags & MODCMD_REQUIRE_CHANUSER)
 586         && (options & SVCCMD_NOISY)
 587         && (!uData || (uData->access > 500))
 588         && (!(uData = _GetChannelUser(channel->channel_info, user->handle_info, 0, 0))
 589             || uData->access < cmd->min_channel_access)
 590         && !(flags & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING))) {
 591         rflags |= ACTION_OVERRIDE;
 592     }
 593     return rflags | ACTION_ALLOW;
 594 }
 595
 596 static int
 597 svccmd_expand_alias(struct svccmd *cmd, unsigned int old_argc, char *old_argv[], char *new_argv[]) {
 598     unsigned int ii, new_argc;
 599     char *arg;
 600
 601     for (ii=new_argc=0; ii<cmd->alias.used; ++ii) {
 602         arg = cmd->alias.list[ii];
 603         if (arg[0] != '$') {
 604             new_argv[new_argc++] = arg;
 605             continue;
 606         }
 607         if (arg[1] == '$') {
 608             new_argv[new_argc++] = arg + 1;
 609         } else if (isdigit(arg[1])) {
 610             unsigned int lbound, ubound, jj;
 611             char *end_num;
 612
 613             lbound = strtoul(arg+1, &end_num, 10);
 614             switch (end_num[0]) {
 615             case 0: ubound = lbound; break;
 616             case '-':
 617                 if (end_num[1] == 0) {
 618                     ubound = old_argc - 1;
 619                     break;
 620                 } else if (isdigit(end_num[1])) {
 621                     ubound = strtoul(end_num+1, NULL, 10);
 622                     break;
 623                 }
 624                 /* else fall through to default case */
 625             default:
 626                 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);
 627                 return 0;
 628             }
 629             if (lbound >= old_argc)
 630                 return -1;
 631             if (ubound >= old_argc)
 632                 ubound = old_argc - 1;
 633             if (lbound < old_argc)
 634                 for (jj = lbound; jj <= ubound; )
 635                     new_argv[new_argc++] = old_argv[jj++];
 636         } else {
 637             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);
 638             return 0;
 639         }
 640     }
 641     return new_argc;
 642 }
 643
 644 int
 645 svccmd_invoke_argv(struct userNode *user, struct service *service, struct chanNode *channel, unsigned int argc, char *argv[], unsigned int server_qualified) {
 646     extern struct userNode *chanserv;
 647     struct svccmd *cmd;
 648     unsigned int cmd_arg, perms, flags, options, result;
 649     char channel_name[CHANNELLEN+1];
 650
 651     options = (server_qualified ? SVCCMD_QUALIFIED : 0) | SVCCMD_DEBIT | SVCCMD_NOISY;
 652     /* Find the command argument. */
 653     cmd_arg = IsChannelName(argv[0]) ? 1 : 0;
 654     if (argc < cmd_arg+1) {
 655         send_message(user, service->bot, "MCMSG_MISSING_COMMAND");
 656         return 0;
 657     }
 658     if (!isalnum(*argv[cmd_arg])) {
 659         /* Silently ignore stuff that doesn't begin with a letter or number. */
 660         return 0;
 661     }
 662     cmd = dict_find(service->commands, argv[cmd_arg], NULL);
 663     if (!cmd) {
 664         if (!channel)
 665             send_message(user, service->bot, "MSG_COMMAND_UNKNOWN", argv[cmd_arg]);
 666         return 0;
 667     }
 668
 669     /* Check pubcmd for the channel. */
 670     if (channel && (channel->channel_info) && (service->bot == chanserv)
 671         && !check_user_level(channel, user, lvlPubCmd, 1, 0)) {
 672         send_message(user, service->bot, "MCMSG_PUBLIC_DENY", channel->name);
 673         return 0;
 674     }
 675
 676     flags = cmd->effective_flags;
 677     /* If they put a channel name first, check if the command allows
 678      * it.  If so, swap it with the command name.
 679      */
 680     if (cmd_arg == 1) {
 681         char *tmp;
 682         /* Complain if we're not supposed to accept the channel. */
 683         if (!(flags & MODCMD_ACCEPT_CHANNEL)) {
 684             send_message(user, service->bot, "MCMSG_NO_CHANNEL_BEFORE");
 685             return 0;
 686         }
 687         if (!(flags & MODCMD_ACCEPT_PCHANNEL)
 688             && (argv[0][0] == '+')) {
 689             send_message(user, service->bot, "MCMSG_NO_PLUS_CHANNEL");
 690             return 0;
 691         }
 692         tmp = argv[1];
 693         argv[1] = argv[0];
 694         argv[0] = tmp;
 695     }
 696
 697     /* Try to grab a channel handle before alias expansion.
 698      * If the command accepts a channel name, and argv[1] is
 699      * one, use it as a channel name, and hide it from logging.
 700      */
 701     if ((argc > 1)
 702         && (flags & MODCMD_ACCEPT_CHANNEL)
 703         && IsChannelName(argv[1])
 704         && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 705         && (channel = dict_find(channels, argv[1], NULL))) {
 706         argv[1] = argv[0];
 707         argv++, argc--;
 708         cmd_arg = 1;
 709     }
 710
 711     /* Expand the alias arguments, if there are any. */
 712     if (cmd->alias.used) {
 713         char *new_argv[MAXNUMPARAMS];
 714         int res;
 715
 716         res = svccmd_expand_alias(cmd, argc, argv, new_argv);
 717         if (res < 0) {
 718             send_message(user, service->bot, "MSG_MISSING_PARAMS", cmd->name);
 719             return 0;
 720         } else if (res == 0) {
 721             send_message(user, service->bot, "MCMSG_ALIAS_ERROR", cmd->name);
 722             return 0;
 723         }
 724         argc = res;
 725         argv = new_argv;
 726
 727         /* Try again to grab a handle to the channel after alias
 728          * expansion, overwriting any previous channel. This should,
 729          * of course, only be done again if an alias was acually
 730          * expanded. */
 731         if ((argc > 1)
 732             && (flags & MODCMD_ACCEPT_CHANNEL)
 733             && IsChannelName(argv[1])
 734             && ((argv[1][0] != '+') || (flags & MODCMD_ACCEPT_PCHANNEL))
 735             && (channel = dict_find(channels, argv[1], NULL))) {
 736             argv[1] = argv[0];
 737             argv++, argc--;
 738             cmd_arg = 1;
 739         }
 740     }
 741
 742     /* Figure out what actions we should do for it.. */
 743     if (cmd_arg && (flags & MODCMD_TOY)) {
 744         /* Do not let user manually specify a channel. */
 745         channel = NULL;
 746     }
 747     if (argc < cmd->command->min_argc) {
 748         send_message(user, service->bot, "MSG_MISSING_PARAMS", cmd->name);
 749         svccmd_send_help_brief(user, service->bot, cmd);
 750         return 0;
 751     }
 752     if (!cmd->command->func) {
 753         send_message(user, service->bot, "MCMSG_INTERNAL_COMMAND", cmd->name);
 754         return 0;
 755     }
 756     perms = svccmd_can_invoke(user, service->bot, cmd, channel, options);
 757     if (!perms)
 758         return 0;
 759     cmd->uses++;
 760     if (perms & ACTION_NOCHANNEL)
 761         channel = NULL;
 762
 763     if (channel)
 764         safestrncpy(channel_name, channel->name, sizeof(channel_name));
 765     else
 766         channel_name[0] = 0;
 767     if (!(result = cmd->command->func(user, channel, argc, argv, cmd)))
 768         return 0;
 769     if (!(flags & MODCMD_NO_LOG)) {
 770         enum log_severity slvl;
 771         if (result & CMD_LOG_OVERRIDE)
 772             slvl = LOG_OVERRIDE;
 773         else if ((perms & ACTION_STAFF) || (result & CMD_LOG_STAFF))
 774             slvl = LOG_STAFF;
 775         else if (perms & ACTION_OVERRIDE)
 776             slvl = LOG_OVERRIDE;
 777         else
 778             slvl = LOG_COMMAND;
 779         /* Unsplit argv after running the function to get the benefit
 780          * of any mangling/hiding done by the commands. */
 781         log_audit(cmd->command->parent->clog, slvl, user, service->bot, channel_name, AUDIT_HOSTMASK, unsplit_string(argv, argc, NULL));
 782     }
 783     return 1;
 784 }
 785
 786 /* First line (syntax usually) only help.. used for wrong param counts etc */
 787 int
 788 svccmd_send_help_brief(struct userNode *user, struct userNode *bot, struct svccmd *cmd) {
 789     int r;
 790
 791     /* If it's an alias, show what it's an alias for. */
 792     if (cmd->alias.used) {
 793         char alias_text[MAXLEN];
 794         unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 795         send_message(user, bot, "MCMSG_COMMAND_ALIASES", cmd->name, cmd->command->name);
 796     }
 797     /* Send the syntax line of help.. */
 798     r = send_help_brief(user, bot, cmd->command->parent->helpfile, cmd->name);
 799     if(!r) {
 800         if(cmd->command->name)
 801         {
 802            send_message(user, bot, "MCMSG_COMMAND_ALIASES", cmd->name, cmd->command->name);
 803            r = send_help_brief(user, bot, cmd->command->parent->helpfile, cmd->command->name);
 804         }
 805     }
 806     return r;
 807 }
 808
 809 int is_joiner(struct svccmd *cmd)
 810 {
 811     if(cmd->command->name)
 812     {
 813         if(strcasecmp("joiner", cmd->command->name))
 814             return(0);
 815         else
 816             return(1);
 817     }
 818     return(0);
 819 /*
 820     if(cmd->alias.used)
 821     {
 822         char alias_text[MAXLEN];
 823         unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 824         if(strcasecmp("joiner", alias_text))
 825             return(0);
 826         else
 827             return(1);
 828     }
 829 */
 830 }
 831
 832 int
 833 svccmd_send_help(struct userNode *user, struct service *service, const char *topic) {
 834     struct module *module;
 835     struct svccmd *cmd;
 836     char cmdname[MAXLEN];
 837     unsigned int nn, ii;
 838     int helpsent = 0;
 839
 840     /* If there is no topic show the index */
 841     if (!topic)
 842         topic = "<index>";
 843     /* make heading str (uppercase) */
 844     for (nn=0; topic[nn]; nn++)
 845             cmdname[nn] = toupper(topic[nn]);
 846     cmdname[nn] = 0;
 847
 848     /* If there is a command 'topic', send command help for the command (unless its bound to JOINER) */
 849     if ((cmd = dict_find(service->commands, topic, NULL)) && !is_joiner(cmd))
 850     {
 851         send_message(user, service->bot, "MCMSG_HELP_COMMAND_HEADER", cmdname);
 852         send_message(user, service->bot, "MCMSG_HELP_DIVIDER");
 853         helpsent = send_help(user, service->bot, cmd->command->parent->helpfile, cmd->name);
 854
 855         /* Show if its an alias, or a binding of another command */
 856         if (cmd->alias.used)
 857         {
 858             char alias_text[MAXLEN];
 859             unsplit_string((char**)cmd->alias.list, cmd->alias.used, alias_text);
 860             send_message(user, service->bot, "MCMSG_HELP_COMMAND_ALIAS", alias_text);
 861             /* If send_help above didnt work, try again with the referenced command.. */
 862             if(!helpsent)
 863                 helpsent = send_help(user, service->bot, cmd->command->parent->helpfile, alias_text);
 864         }
 865         else if(cmd->command->name && strcasecmp(cmd->command->name, cmd->name))
 866         {
 867             send_message(user, service->bot, "MCMSG_HELP_COMMAND_ALIAS", cmd->command->name);
 868             /* If send_help above didnt work, try again with the referenced command.. */
 869             if(!helpsent)
 870                 helpsent = send_help(user, service->bot, cmd->command->parent->helpfile, cmd->command->name);
 871         }
 872         /* If send_help still couldnt find it, tell them sorry */
 873         if(!helpsent)
 874             send_message(user, service->bot, "MCMSG_HELP_COMMAND_UNKNOWN");
 875         send_message(user, service->bot, "MCMSG_HELP_FOOTER");
 876         return true;
 877     }
 878     else /* look for topic in the help files loaded to this nick/service */
 879     {
 880         /* Check for non command help in first primary help file, then next and so on */
 881         /* Note - we need to think about default bindings. see opserv.helpfiles */
 882             for(ii = 0; ii < service->modules.used; ii++)
 883             {
 884                 module = service->modules.list[ii];
 885                 if(!module->helpfile)
 886                     continue;
 887                 if(dict_find(module->helpfile->db, topic, NULL))
 888                 {
 889                     if (module->helpfile && dict_find(module->helpfile->db, topic, NULL))
 890                     {
 891
 892                         send_message(user, service->bot, "MCMSG_HELP_TOPIC_HEADER", cmdname);
 893                         send_message(user, service->bot, "MCMSG_HELP_DIVIDER");
 894                         /* This should never fail but maybe if something is odd? */
 895                         if(!send_help(user, service->bot, module->helpfile, topic))
 896                             send_message(user, service->bot, "MSG_TOPIC_UNKNOWN");
 897                         send_message(user, service->bot, "MCMSG_HELP_FOOTER");
 898                         return true;
 899                     }
 900                 }
 901             }
 902     }
 903     /* Otherwise say we cant find it */
 904     send_message(user, service->bot, "MSG_TOPIC_UNKNOWN");
 905     return 0;
 906 }
 907
 908 static int
 909 svccmd_invoke(struct userNode *user, struct service *service, struct chanNode *channel, const char *text, int server_qualified) {
 910     unsigned int argc;
 911     char *argv[MAXNUMPARAMS];
 912     char tmpline[MAXLEN];
 913
 914     if (!*text)
 915         return 0;
 916     if (service->privileged) {
 917         if (!IsOper(user)) {
 918             send_message(user, service->bot, "MSG_SERVICE_PRIVILEGED", service->bot->nick);
 919             return 0;
 920         }
 921         if (!user->handle_info) {
 922             send_message(user, service->bot, "MSG_AUTHENTICATE");
 923             return 0;
 924         }
 925         if (HANDLE_FLAGGED(user->handle_info, OPER_SUSPENDED)) {
 926             send_message(user, service->bot, "MSG_OPER_SUSPENDED");
 927             return 0;
 928         }
 929     }
 930     safestrncpy(tmpline, text, sizeof(tmpline));
 931     argc = split_line(tmpline, false, ArrayLength(argv), argv);
 932     return argc ? svccmd_invoke_argv(user, service, channel, argc, argv, server_qualified) : 0;
 933 }
 934
 935 char *cvs_verstring() {
 936   static char verstring[MAXLEN] = { 0 };
 937
 938   if(!*verstring) {
 939     char *svn = NULL, *svnver = NULL, *svndate = NULL, *v = 0, ver[MAXLEN];
 940     int vc = 0;
 941
 942     strcpy(ver, CVS_VERSION);
 943     for (svn = x3_strtok(&v, ver, " "); svn;
 944          svn = x3_strtok(&v, 0, " ")) {
 945         if (vc == 2)
 946             svnver = svn;
 947         else if (vc == 3)
 948             svndate = svn;
 949         vc++;
 950     }
 951     sprintf(verstring, "%s %s", svnver, svndate);
 952   }
 953   return verstring;
 954 }
 955
 956
 957 void
 958 modcmd_privmsg(struct userNode *user, struct userNode *bot, const char *text, int server_qualified) {
 959     struct service *service;
 960
 961     if (!(service = dict_find(services, bot->nick, NULL))) {
 962         log_module(MAIN_LOG, LOG_ERROR, "modcmd_privmsg got privmsg for unhandled service %s, unregistering.", bot->nick);
 963         reg_privmsg_func(bot, NULL);
 964         return;
 965     }
 966
 967     if (text[0] == '\x01') {
 968         char *term, response[MAXLEN];
 969
 970         text++; /* Skip leading ^A. */
 971         /* Chop off final ^A. */
 972         term = strchr(text, '\x01');
 973         if (!term)
 974             return;
 975         *term = '\0';
 976         /* Parse out leading text. */
 977         term = strchr(text, ' ');
 978         if (term) {
 979             *term++ = '\0';
 980             if (!*term)
 981                 term = NULL;
 982         }
 983         /* No dict lookup since these are so few. */
 984         if (!irccasecmp(text, "CLIENTINFO")) {
 985             /* Use \001 instead of \x01 because apparently \x01C is
 986              * interpreted as ASCII FS (\034, decimal 28, hex 1C).
 987              */
 988             irc_notice_user(bot, user, "\001CLIENTINFO CLIENTINFO PING TIME USERINFO VERSION\x01");
 989         } else if (!irccasecmp(text, "PING")) {
 990             if (term) {
 991                 snprintf(response, sizeof(response), "\x01PING %s\x01", term);
 992                 irc_notice_user(bot, user, response);
 993             } else {
 994                 irc_notice_user(bot,user, "\x01PING\x01");
 995             }
 996         } else if (!irccasecmp(text, "TIME")) {
 997             struct tm tm;
 998             localtime_r(&now, &tm);
 999             strftime(response, sizeof(response), "\x01TIME %a %b %d %H:%M:%S %Y\x01", &tm);
1000             irc_notice_user(bot, user, response);
1001         } else if (!irccasecmp(text, "USERINFO")) {
1002             snprintf(response, sizeof(response), "\x01USERINFO %s\x01", bot->info);
1003             irc_notice_user(bot, user, response);
1004         } else if (!irccasecmp(text, "VERSION")) {
1005             snprintf(response, sizeof(response), "\x01VERSION %s+[%s]\x01", PACKAGE_STRING, cvs_verstring());
1006             irc_notice_user(bot, user, response);
1007         } else if (!irccasecmp(text, "GENDER")) {
1008              snprintf(response, sizeof(response), "\x01GENDER ummm im still deciding\x01");
1009              irc_notice_user(bot, user, response);
1010         }
1011         return;
1012     }
1013
1014     if (service->msg_hook && service->msg_hook(user, bot, text, server_qualified))
1015         return;
1016     svccmd_invoke(user, service, NULL, text, server_qualified);
1017 }
1018
1019 void
1020 modcmd_chanmsg(struct userNode *user, struct chanNode *chan, const char *text, struct userNode *bot, unsigned int is_notice) {
1021     struct service *service;
1022     if (!(service = dict_find(services, bot->nick, NULL)))
1023         return;
1024     svccmd_invoke(user, service, chan, text, 0);
1025     (void)is_notice;
1026 }
1027
1028 struct service *
1029 service_register(struct userNode *bot) {
1030     struct service *service;
1031     if ((service = dict_find(services, bot->nick, NULL)))
1032         return service;
1033     service = calloc(1, sizeof(*service));
1034     module_list_init(&service->modules);
1035     service->commands = dict_new();
1036     service->bot = bot;
1037     dict_set_free_data(service->commands, free_service_command);
1038     dict_insert(services, service->bot->nick, service);
1039     reg_privmsg_func(bot, modcmd_privmsg);
1040     return service;
1041 }
1042
1043 struct service *
1044 service_find(const char *name) {
1045     return dict_find(services, name, NULL);
1046 }
1047
1048 static void
1049 svccmd_insert(struct service *service, char *name, struct svccmd *svccmd, struct modcmd *modcmd) {
1050     unsigned int ii;
1051     svccmd->parent = service;
1052     svccmd->name = name;
1053     svccmd->command = modcmd;
1054     svccmd->command->bind_count++;
1055     dict_insert(service->commands, svccmd->name, svccmd);
1056     for (ii=0; ii<service->modules.used; ++ii) {
1057         if (service->modules.list[ii] == svccmd->command->parent) break;
1058     }
1059     if (ii == service->modules.used) {
1060         module_list_append(&service->modules, svccmd->command->parent);
1061     }
1062 }
1063
1064 struct svccmd *
1065 service_bind_modcmd(struct service *service, struct modcmd *cmd, const char *name) {
1066     struct svccmd *svccmd;
1067     if ((svccmd = dict_find(service->commands, name, NULL))) {
1068         if (svccmd->command == cmd) return svccmd;
1069         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);
1070         return NULL;
1071     }
1072     svccmd = calloc(1, sizeof(*svccmd));
1073     svccmd_insert(service, strdup(name), svccmd, cmd);
1074     svccmd_copy_rules(svccmd, cmd->defaults);
1075     return svccmd;
1076 }
1077
1078 static unsigned int
1079 service_bind_module(struct service *service, struct module *module) {
1080     dict_iterator_t it;
1081     struct modcmd *modcmd;
1082     unsigned int count;
1083
1084     count = 0;
1085     for (it = dict_first(module->commands); it; it = iter_next(it)) {
1086         modcmd = iter_data(it);
1087         if (!((modcmd->flags | modcmd->defaults->flags) & MODCMD_NO_DEFAULT_BIND))
1088             if (service_bind_modcmd(service, modcmd, iter_key(it)))
1089                 count++;
1090     }
1091     return count;
1092 }
1093
1094 /* This MUST return argc if the alias expansion code knows how to deal
1095  * with every argument in argv; otherwise, it MUST return the index of
1096  * an argument that the expansion code does not know how to deal with.
1097  */
1098 static unsigned int
1099 check_alias_args(char *argv[], unsigned int argc) {
1100     unsigned int arg;
1101
1102     for (arg=0; arg<argc; ++arg) {
1103         if (argv[arg][0] != '$') {
1104             continue;
1105         } else if (argv[arg][1] == '$') {
1106             continue;
1107         } else if (isdigit(argv[arg][1])) {
1108             char *end_num;
1109             unsigned long tmp;
1110
1111             tmp = strtoul(argv[arg]+1, &end_num, 10);
1112             switch (end_num[0]) {
1113             case 0:
1114                 continue;
1115             case '-':
1116                 if (end_num[1] == 0)
1117                     continue;
1118                 else if (isdigit(end_num[1]))
1119                     continue;
1120                 /* else fall through to default case */
1121             default:
1122                 return arg;
1123             }
1124         } else {
1125             switch(argv[arg][1]) {
1126                 case 'a':
1127                 case 'n':
1128                 case 'm':
1129                     continue;
1130                 default:
1131                     return arg;
1132             }
1133         }
1134     }
1135     return arg;
1136 }
1137
1138 static unsigned int
1139 collapse_cmdname(char *argv[], unsigned int argc, char *dest) {
1140     unsigned int ii, pos, arg;
1141     if (!argc) {
1142         dest[0] = 0;
1143         return 0;
1144     }
1145     for (ii=pos=0, arg=0; argv[arg][ii]; ) {
1146         if (argv[arg][ii] == '\\') {
1147             if (argv[arg][ii+1]) {
1148                 /* escaping a real character just puts it in literally */
1149                 dest[pos++] = argv[arg][++ii];
1150             } else if ((arg+1) == argc) {
1151                 /* we ran to the end of the argument list; abort */
1152                 break;
1153             } else {
1154                 /* escape at end of a word is a space */
1155                 dest[pos++] = ' ';
1156                 ii = 0;
1157                 arg++;
1158             }
1159         } else {
1160             /* normal characters don't need escapes */
1161             dest[pos++] = argv[arg][ii++];
1162         }
1163     }
1164     dest[pos] = 0;
1165     return arg + 1;
1166 }
1167
1168 static MODCMD_FUNC(cmd_bind) {
1169     struct service *service;
1170     struct svccmd *template, *newcmd;
1171     char *svcname, *dot;
1172     char newname[MAXLEN], cmdname[MAXLEN];
1173     unsigned int arg, diff;
1174
1175     assert(argc > 3);
1176     svcname = argv[1];
1177     arg = collapse_cmdname(argv+2, argc-2, newname) + 2;
1178     if (!arg) {
1179         reply("MSG_MISSING_PARAMS", cmd->name);
1180         return 0;
1181     }
1182     diff = collapse_cmdname(argv+arg, argc-arg, cmdname);
1183     if (!diff) {
1184         reply("MSG_MISSING_PARAMS", cmd->name);
1185         return 0;
1186     }
1187     arg += diff;
1188
1189     if (!(service = service_find(svcname))) {
1190         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1191         return 0;
1192     }
1193
1194     if ((newcmd = dict_find(service->commands, newname, NULL))) {
1195         reply("MCMSG_ALREADY_BOUND", service->bot->nick, newname);
1196         return 0;
1197     }
1198
1199     if ((dot = strchr(cmdname, '.')) && (dot[1] == '*') && (dot[2] == 0)) {
1200         unsigned int count;
1201         struct module *module;
1202         *dot = 0;
1203         module = module_find((cmdname[0] == '*') ? cmdname+1 : cmdname);
1204         if (!module) {
1205             reply("MSG_MODULE_UNKNOWN", cmdname);
1206             return 0;
1207         }
1208         count = service_bind_module(service, module);
1209         reply("MCMSG_MODULE_BOUND", count, module->name, service->bot->nick);
1210         return count != 0;
1211     }
1212     newcmd = calloc(1, sizeof(*newcmd));
1213     newcmd->name = strdup(newname);
1214     newcmd->parent = service;
1215     if (!(template = svccmd_resolve_name(newcmd, cmdname))) {
1216         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, service->bot->nick);
1217         free(newcmd->name);
1218         free(newcmd);
1219         return 0;
1220     }
1221     if (template->alias.used) {
1222         reply("MCMSG_CANNOT_DOUBLE_ALIAS");
1223         free(newcmd->name);
1224         free(newcmd);
1225         return 0;
1226     }
1227
1228     if (argc > arg) {
1229         /* a more complicated alias; fix it up */
1230         unsigned int nn;
1231
1232         arg -= diff;
1233         nn = check_alias_args(argv+arg, argc-arg);
1234         if (nn+arg < argc) {
1235             reply("MCMSG_BAD_ALIAS_ARGUMENT", argv[nn+arg]);
1236             free(newcmd->name);
1237             free(newcmd);
1238             return 0;
1239         }
1240         newcmd->alias.used = newcmd->alias.size = argc-arg;
1241         newcmd->alias.list = calloc(newcmd->alias.size, sizeof(newcmd->alias.list[0]));
1242         for (nn=0; nn<newcmd->alias.used; ++nn)
1243             newcmd->alias.list[nn] = strdup(argv[nn+arg]);
1244     }
1245
1246     svccmd_insert(service, newcmd->name, newcmd, template->command);
1247     svccmd_copy_rules(newcmd, template);
1248     reply("MCMSG_COMMAND_BOUND", newcmd->name, newcmd->parent->bot->nick);
1249     return 1;
1250 }
1251
1252 static int
1253 service_recheck_bindings(struct service *service, struct module *module) {
1254     dict_iterator_t it;
1255     struct svccmd *cmd;
1256
1257     for (it = dict_first(service->commands); it; it = iter_next(it)) {
1258         cmd = iter_data(it);
1259         if (cmd->command->parent == module) return 0;
1260     }
1261     /* No more bindings, remove it from our list. */
1262     module_list_remove(&service->modules, module);
1263     return 1;
1264 }
1265
1266 static svccmd_unbind_func_t *suf_list;
1267 unsigned int suf_size, suf_used;
1268
1269 void
1270 reg_svccmd_unbind_func(svccmd_unbind_func_t handler) {
1271     if (suf_used == suf_size) {
1272         if (suf_size) {
1273             suf_size <<= 1;
1274             suf_list = realloc(suf_list, suf_size*sizeof(svccmd_unbind_func_t));
1275         } else {
1276             suf_size = 8;
1277             suf_list = malloc(suf_size*sizeof(svccmd_unbind_func_t));
1278         }
1279     }
1280     suf_list[suf_used++] = handler;
1281 }
1282
1283 static MODCMD_FUNC(cmd_unbind) {
1284     struct service *service;
1285     struct userNode *bot;
1286     struct svccmd *bound;
1287     struct module *module;
1288     const char *svcname;
1289     unsigned int arg, ii;
1290     char cmdname[MAXLEN];
1291
1292     assert(argc > 2);
1293     svcname = argv[1];
1294     arg = collapse_cmdname(argv+2, argc-2, cmdname) + 2;
1295     if (!arg) {
1296         reply("MSG_MISSING_PARAMS", cmd->name);
1297         return 0;
1298     }
1299     if (!(service = service_find(svcname))) {
1300         reply("MCMSG_UNKNOWN_SERVICE", svcname);
1301         return 0;
1302     }
1303     if (!(bound = dict_find(service->commands, cmdname, NULL))) {
1304         reply("MCMSG_NO_COMMAND_BOUND", service->bot->nick, cmdname);
1305         return 0;
1306     }
1307     if ((bound->command->flags & MODCMD_KEEP_BOUND) && (bound->command->bind_count == 1)) {
1308         reply("MCMSG_UNBIND_PROHIBITED", bound->command->name);
1309         return 0;
1310     }
1311
1312     for (ii=0; ii<suf_used; ii++)
1313         suf_list[ii](bound);
1314     /* If this command binding is removing itself, we must take care
1315      * not to dereference it after the dict_remove.
1316      */
1317     bot = cmd->parent->bot;
1318     module = cmd->command->parent;
1319     dict_remove(service->commands, bound->name);
1320     send_message(user, bot, "MCMSG_COMMAND_UNBOUND", cmdname, service->bot->nick);
1321     if (service_recheck_bindings(service, module))
1322         send_message(user, bot, "MCMSG_HELPFILE_UNBOUND", module->name, module->name);
1323     return 1;
1324 }
1325
1326 static MODCMD_FUNC(cmd_readhelp) {
1327     const char *modname;
1328     struct module *module;
1329     struct helpfile *old_helpfile;
1330     struct timeval start, stop;
1331
1332     assert(argc > 1);
1333     modname = argv[1];
1334     if (!(module = module_find(modname))) {
1335         reply("MSG_MODULE_UNKNOWN", modname);
1336         return 0;
1337     }
1338     if (!module->helpfile_name) {
1339         reply("MCMSG_NO_HELPFILE", module->name);
1340         return 0;
1341     }
1342     old_helpfile = module->helpfile;
1343     gettimeofday(&start, NULL);
1344     module->helpfile = open_helpfile(module->helpfile_name, module->expand_help);
1345     if (!module->helpfile) {
1346         module->helpfile = old_helpfile;
1347         reply("MCMSG_HELPFILE_ERROR", module->helpfile_name);
1348         return 0;
1349     }
1350     if (old_helpfile) close_helpfile(old_helpfile);
1351     gettimeofday(&stop, NULL);
1352     stop.tv_sec -= start.tv_sec;
1353     stop.tv_usec -= start.tv_usec;
1354     if (stop.tv_usec < 0) {
1355         stop.tv_sec -= 1;
1356         stop.tv_usec += 1000000;
1357     }
1358     reply("MCMSG_HELPFILE_READ", module->name, stop.tv_sec, stop.tv_usec/1000);
1359     return 1;
1360 }
1361
1362 static MODCMD_FUNC(cmd_help) {
1363     const char *topic;
1364
1365     topic = (argc < 2) ? NULL : unsplit_string(argv+1, argc-1, NULL);
1366     return svccmd_send_help(user, cmd->parent, topic);
1367 }
1368
1369 static MODCMD_FUNC(cmd_timecmd) {
1370     struct timeval start, stop;
1371     char cmd_text[MAXLEN];
1372
1373     unsplit_string(argv+1, argc-1, cmd_text);
1374     gettimeofday(&start, NULL);
1375     svccmd_invoke(user, cmd->parent, channel, cmd_text, 0);
1376     gettimeofday(&stop, NULL);
1377     stop.tv_sec -= start.tv_sec;
1378     stop.tv_usec -= start.tv_usec;
1379     if (stop.tv_usec < 0) {
1380         stop.tv_sec -= 1;
1381         stop.tv_usec += 1000000;
1382     }
1383     reply("MCMSG_COMMAND_TIME", cmd_text, stop.tv_sec, stop.tv_usec);
1384     return 1;
1385 }
1386
1387 static MODCMD_FUNC(cmd_command) {
1388     struct svccmd *svccmd;
1389     const char *cmd_name, *fmt_str;
1390     unsigned int flags, shown_flags, nn, pos;
1391     char buf[MAXLEN];
1392
1393     assert(argc >= 2);
1394     cmd_name = unsplit_string(argv+1, argc-1, NULL);
1395     if (!(svccmd = svccmd_resolve_name(cmd, cmd_name))) {
1396         reply("MCMSG_UNKNOWN_COMMAND_2", cmd_name, cmd->parent->bot->nick);
1397         return 0;
1398     }
1399     pos = snprintf(buf, sizeof(buf), "%s.%s", svccmd->command->parent->name, svccmd->command->name);
1400     if (svccmd->alias.used) {
1401         buf[pos++] = ' ';
1402         unsplit_string((char**)svccmd->alias.list+1, svccmd->alias.used-1, buf+pos);
1403         reply("MCMSG_COMMAND_ALIASES", svccmd->name, buf);
1404     } else {
1405         reply("MCMSG_COMMAND_BINDING", svccmd->name, buf);
1406     }
1407     flags = svccmd->effective_flags;
1408     if ((svccmd->parent && svccmd->parent->privileged && !IsOper(user))
1409         || ((flags & MODCMD_REQUIRE_STAFF)
1410             && !IsOper(user) && !IsNetworkHelper(user) && !IsSupportHelper(user))) {
1411         reply("MCMSG_INSPECTION_REFUSED", svccmd->name);
1412         return 0;
1413     }
1414     if (flags & MODCMD_DISABLED) {
1415         reply("MSG_COMMAND_DISABLED", svccmd->name);
1416         return 1;
1417     }
1418     shown_flags = 0;
1419     if (svccmd->min_opserv_level > 0) {
1420         reply("MCMSG_NEED_OPSERV_LEVEL", svccmd->min_opserv_level);
1421         shown_flags |= MODCMD_REQUIRE_OPER | MODCMD_REQUIRE_AUTHED;
1422     }
1423     if (svccmd->min_channel_access > 0) {
1424         reply("MCMSG_NEED_CHANSERV_LEVEL", svccmd->min_channel_access);
1425         shown_flags |= MODCMD_REQUIRE_CHANUSER | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1426     }
1427     if (svccmd->req_account_flags) {
1428         for (nn=pos=0; nn<32; nn++) {
1429             if (!(svccmd->req_account_flags & (1 << nn))) continue;
1430             buf[pos++] = HANDLE_FLAGS[nn];
1431         }
1432         buf[pos] = 0;
1433         reply("MCMSG_NEED_ACCOUNT_FLAGS", buf);
1434         shown_flags |= MODCMD_REQUIRE_AUTHED;
1435     }
1436     if (!flags && !shown_flags) {
1437         reply("MCMSG_NEED_NOTHING", svccmd->name);
1438         return 1;
1439     }
1440     if (flags & ~shown_flags & MODCMD_REQUIRE_HELPING) {
1441         reply("MCMSG_MUST_BE_HELPING");
1442         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1443     }
1444     if (flags & ~shown_flags & MODCMD_REQUIRE_STAFF) {
1445         switch (flags & MODCMD_REQUIRE_STAFF) {
1446         default: case MODCMD_REQUIRE_STAFF:
1447             fmt_str = "MCMSG_NEED_STAFF_ACCESS";
1448             break;
1449         case MODCMD_REQUIRE_OPER:
1450             fmt_str = "MCMSG_NEED_STAFF_OPER";
1451             break;
1452         case MODCMD_REQUIRE_NETWORK_HELPER:
1453             fmt_str = "MCMSG_NEED_STAFF_NETHELPER";
1454             break;
1455         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_NETWORK_HELPER:
1456             fmt_str = "MCMSG_NEED_STAFF_NETHELPER_OR_OPER";
1457             break;
1458         case MODCMD_REQUIRE_SUPPORT_HELPER:
1459             fmt_str = "MCMSG_NEED_STAFF_SHELPER";
1460             break;
1461         case MODCMD_REQUIRE_OPER|MODCMD_REQUIRE_SUPPORT_HELPER:
1462             fmt_str = "MCMSG_NEED_STAFF_SHELPER_OR_OPER";
1463             break;
1464         case MODCMD_REQUIRE_SUPPORT_HELPER|MODCMD_REQUIRE_NETWORK_HELPER:
1465             fmt_str = "MCMSG_NEED_STAFF_HELPER";
1466             break;
1467         }
1468         reply(fmt_str);
1469         shown_flags |= MODCMD_REQUIRE_AUTHED | MODCMD_REQUIRE_STAFF;
1470     }
1471     if (flags & ~shown_flags & MODCMD_REQUIRE_JOINABLE) {
1472         reply("MCMSG_NEED_JOINABLE");
1473         shown_flags |= MODCMD_REQUIRE_CHANUSER;
1474     }
1475     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANUSER) {
1476         if (flags & ~shown_flags & MODCMD_IGNORE_CSUSPEND)
1477             reply("MCMSG_NEED_CHANUSER_CSUSPENDABLE");
1478         else
1479             reply("MCMSG_NEED_CHANUSER");
1480         shown_flags |= MODCMD_IGNORE_CSUSPEND | MODCMD_REQUIRE_REGCHAN | MODCMD_REQUIRE_CHANNEL | MODCMD_REQUIRE_AUTHED;
1481     }
1482     if (flags & ~shown_flags & MODCMD_REQUIRE_REGCHAN) {
1483         reply("MCMSG_NEED_REGCHAN");
1484         shown_flags |= MODCMD_REQUIRE_CHANNEL;
1485     }
1486     if (flags & ~shown_flags & MODCMD_REQUIRE_CHANNEL)
1487         reply("MCMSG_NEED_CHANNEL");
1488     if (flags & ~shown_flags & MODCMD_REQUIRE_AUTHED)
1489         reply("MCMSG_NEED_AUTHED");
1490     if (flags & ~shown_flags & MODCMD_TOY)
1491         reply("MCMSG_IS_TOY", svccmd->name);
1492     if (flags & ~shown_flags & MODCMD_REQUIRE_QUALIFIED) {
1493         const char *botnick = svccmd->parent ? svccmd->parent->bot->nick : "SomeBot";
1494         reply("MCMSG_MUST_QUALIFY", botnick, svccmd->name, botnick);
1495     }
1496     reply("MCMSG_END_REQUIREMENTS", svccmd->name);
1497     return 1;
1498 }
1499
1500 static void
1501 modcmd_describe_command(struct userNode *user, struct svccmd *cmd, struct svccmd *target) {
1502     char buf1[MAXLEN], buf2[MAXLEN];
1503     unsigned int ii, len, buf1_used, buf2_used;
1504
1505     if (target->alias.used) {
1506         unsplit_string((char**)target->alias.list, target->alias.used, buf1);
1507         reply("MCMSG_COMMAND_ALIASES", target->name, buf1);
1508     } else {
1509         snprintf(buf1, sizeof(buf1), "%s.%s", target->command->parent->name, target->command->name);
1510         reply("MCMSG_COMMAND_BINDING", target->name, buf1);
1511     }
1512     for (ii = buf1_used = buf2_used = 0; modcmd_flags[ii].name; ++ii) {
1513         const struct modcmd_flag *flag = &modcmd_flags[ii];
1514         if (target->flags & flag->flag) {
1515             if (buf1_used)
1516                 buf1[buf1_used++] = ',';
1517             len = strlen(flag->name);
1518             memcpy(buf1 + buf1_used, flag->name, len);
1519             buf1_used += len;
1520         } else if (target->effective_flags & flag->flag) {
1521             if (buf2_used)
1522                 buf2[buf2_used++] = ',';
1523             len = strlen(flag->name);
1524             memcpy(buf2 + buf2_used, flag->name, len);
1525             buf2_used += len;
1526         }
1527     }
1528     if (buf1_used)
1529         buf1[buf1_used] = '\0';
1530     else
1531         strcpy(buf1, user_find_message(user, "MSG_NONE"));
1532     if (buf2_used)
1533         buf2[buf2_used] = '\0';
1534     else
1535         strcpy(buf2, user_find_message(user, "MSG_NONE"));
1536     reply("MCMSG_COMMAND_FLAGS", buf1, buf2);
1537     for (ii = buf1_used = buf2_used = 0; handle_flags[ii]; ++ii) {
1538         if (target->req_account_flags & (1 << ii))
1539             buf1[buf1_used++] = handle_flags[ii];
1540         else if (target->deny_account_flags & (1 << ii))
1541             buf2[buf2_used++] = handle_flags[ii];
1542     }
1543     buf1[buf1_used] = buf2[buf2_used] = '\0';
1544     reply("MCMSG_COMMAND_ACCOUNT_FLAGS", buf1, buf2);
1545     reply("MCMSG_COMMAND_ACCESS_LEVEL", target->min_channel_access, target->min_opserv_level);
1546     reply("MCMSG_COMMAND_USES", target->name, target->uses);
1547 }
1548
1549 static MODCMD_FUNC(cmd_modcmd) {
1550     struct svccmd *svccmd;
1551     unsigned int arg, changed;
1552     char cmdname[MAXLEN];
1553
1554     assert(argc >= 2);
1555     arg = collapse_cmdname(argv+1, argc-1, cmdname) + 1;
1556     if (!arg) {
1557         reply("MSG_MISSING_PARAMS", cmd->name);
1558         return 0;
1559     }
1560     if (!(svccmd = svccmd_resolve_name(cmd, cmdname))) {
1561         reply("MCMSG_UNKNOWN_COMMAND_2", cmdname, cmd->parent->bot->nick);
1562         return 0;
1563     }
1564     for (changed = 0; arg+1 < argc; arg += 2) {
1565         if (svccmd_configure(svccmd, user, cmd->parent->bot, argv[arg], argv[arg+1])) {
1566             reply("MCMSG_COMMAND_MODIFIED", argv[arg], svccmd->name);
1567             changed = 1;
1568         }
1569     }
1570     if (changed)
1571         modcmd_set_effective_flags(svccmd);
1572     modcmd_describe_command(user, cmd, svccmd);
1573     return changed;
1574 }
1575
1576 static void
1577 timeout_god(void *data)
1578 {
1579     extern struct userNode *chanserv;
1580     struct userNode *user = data;
1581
1582     if(!user || !IsHelping(user)) return;
1583
1584     HANDLE_CLEAR_FLAG(user->handle_info, HELPING);
1585     send_message(user, chanserv, "MCMSG_GOD_EXPIRED");
1586 }
1587
1588 static MODCMD_FUNC(cmd_god) {
1589     int helping;
1590
1591     if (argc > 1) {
1592         if (enabled_string(argv[1])) {
1593             if (HANDLE_FLAGGED(user->handle_info, HELPING)) {
1594                 reply("MCMSG_ALREADY_HELPING");
1595                 return 0;
1596             }
1597             helping = 1;
1598         } else if (disabled_string(argv[1])) {
1599             if (!HANDLE_FLAGGED(user->handle_info, HELPING)) {
1600                 reply("MCMSG_ALREADY_NOT_HELPING");
1601                 return 0;
1602             }
1603             helping = 0;
1604         } else {
1605             reply("MSG_INVALID_BINARY", argv[1]);
1606             return 0;
1607         }
1608     } else {
1609         helping = !IsHelping(user);
1610     }
1611
1612     if (helping) {
1613         HANDLE_SET_FLAG(user->handle_info, HELPING);
1614         timeq_add(now + god_timeout, timeout_god, user);
1615         reply("MCMSG_NOW_HELPING");
1616     } else {
1617         HANDLE_CLEAR_FLAG(user->handle_info, HELPING);
1618         timeq_del(0, timeout_god, user, TIMEQ_IGNORE_WHEN);
1619         reply("MCMSG_NOW_NOT_HELPING");
1620     }
1621
1622     return 1;
1623 }
1624
1625 static MODCMD_FUNC(cmd_joiner) {
1626     char cmdname[MAXLEN];
1627
1628     if (argc < 2) {
1629         int len = sprintf(cmdname, "%s ", cmd->name);
1630         dict_iterator_t it;
1631         struct string_buffer sbuf;
1632
1633         string_buffer_init(&sbuf);
1634         for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1635             if (!ircncasecmp(iter_key(it), cmdname, len)) {
1636                 if (sbuf.used) string_buffer_append_string(&sbuf, ", ");
1637                 string_buffer_append_string(&sbuf, iter_key(it));
1638             }
1639         }
1640         if (!sbuf.used) string_buffer_append(&sbuf, 0);
1641         reply("MCMSG_JOINER_CHOICES", cmd->name, sbuf.list);
1642         string_buffer_clean(&sbuf);
1643         return 1;
1644     }
1645     sprintf(cmdname, "%s %s", cmd->name, argv[1]);
1646     argv[1] = cmdname;
1647     svccmd_invoke_argv(user, cmd->parent, channel, argc-1, argv+1, 0);
1648     return 0; /* never try to log this; the recursive one logs it */
1649 }
1650
1651 static MODCMD_FUNC(cmd_stats_modules) {
1652     struct helpfile_table tbl;
1653     dict_iterator_t it;
1654     unsigned int ii;
1655     struct module *mod;
1656     struct modcmd *modcmd;
1657
1658     if (argc < 2) {
1659         tbl.length = dict_size(modules) + 1;
1660         tbl.width = 3;
1661         tbl.flags = TABLE_PAD_LEFT;
1662         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1663         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1664         tbl.contents[0][0] = "Module";
1665         tbl.contents[0][1] = "Commands";
1666         tbl.contents[0][2] = "Helpfile";
1667         for (ii=1, it=dict_first(modules); it; it=iter_next(it), ii++) {
1668             mod = iter_data(it);
1669             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1670             tbl.contents[ii][0] = mod->name;
1671             tbl.contents[ii][1] = strtab(dict_size(mod->commands));
1672             tbl.contents[ii][2] = mod->helpfile_name ? mod->helpfile_name : "(none)";
1673         }
1674     } else if (!(mod = dict_find(modules, argv[1], NULL))) {
1675         reply("MCMSG_UNKNOWN_MODULE", argv[1]);
1676         return 0;
1677     } else {
1678         reply("MCMSG_MODULE_INFO", mod->name);
1679         tbl.length = dict_size(mod->commands) + 1;
1680         tbl.width = 3;
1681         tbl.flags = TABLE_PAD_LEFT;
1682         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1683         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1684         tbl.contents[0][0] = "Command";
1685         tbl.contents[0][1] = "Min. Args";
1686         tbl.contents[0][2] = "Bind Count";
1687         for (ii=1, it=dict_first(mod->commands); it; it=iter_next(it), ii++) {
1688             modcmd = iter_data(it);
1689             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1690             tbl.contents[ii][0] = modcmd->name;
1691             tbl.contents[ii][1] = strtab(modcmd->min_argc);
1692             tbl.contents[ii][2] = strtab(modcmd->bind_count);
1693         }
1694     }
1695     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1696     return 0;
1697 }
1698
1699 static MODCMD_FUNC(cmd_stats_services) {
1700     struct helpfile_table tbl;
1701     dict_iterator_t it;
1702     unsigned int ii;
1703     struct service *service;
1704     struct svccmd *svccmd;
1705     char *extra;
1706
1707     if (argc < 2) {
1708         tbl.length = dict_size(services) + 1;
1709         tbl.width = 4;
1710         tbl.flags = TABLE_PAD_LEFT;
1711         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1712         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1713         tbl.contents[0][0] = "Service";
1714         tbl.contents[0][1] = "Commands";
1715         tbl.contents[0][2] = "Priv'd?";
1716         tbl.contents[0][3] = "Trigger";
1717         extra = calloc(2, tbl.length);
1718         for (ii=1, it=dict_first(services); it; it=iter_next(it), ii++) {
1719             service = iter_data(it);
1720             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1721             tbl.contents[ii][0] = service->bot->nick;
1722             tbl.contents[ii][1] = strtab(dict_size(service->commands));
1723             tbl.contents[ii][2] = service->privileged ? "yes" : "no";
1724             extra[ii*2] = service->trigger;
1725             tbl.contents[ii][3] = extra+ii*2;
1726         }
1727         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1728         free(extra);
1729         return 0;
1730     } else if (!(service = dict_find(services, argv[1], NULL))) {
1731         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1732         return 0;
1733     } else {
1734         tbl.length = dict_size(service->commands) + 1;
1735         tbl.width = 5;
1736         tbl.flags = TABLE_PAD_LEFT | TABLE_NO_FREE;
1737         tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1738         tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1739         tbl.contents[0][0] = "Command";
1740         tbl.contents[0][1] = "Module";
1741         tbl.contents[0][2] = "ModCmd";
1742         tbl.contents[0][3] = "Alias?";
1743         tbl.contents[0][4] = strdup("Uses");
1744         for (ii=1, it=dict_first(service->commands); it; it=iter_next(it), ii++) {
1745             svccmd = iter_data(it);
1746             tbl.contents[ii] = calloc(tbl.width, sizeof(tbl.contents[ii][0]));
1747             tbl.contents[ii][0] = svccmd->name;
1748             tbl.contents[ii][1] = svccmd->command->parent->name;
1749             tbl.contents[ii][2] = svccmd->command->name;
1750             tbl.contents[ii][3] = svccmd->alias.used ? "yes" : "no";
1751             tbl.contents[ii][4] = extra = malloc(12);
1752             sprintf(extra, "%u", svccmd->uses);
1753         }
1754         reply("MCMSG_SERVICE_INFO", service->bot->nick);
1755         table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1756         for (ii=0; ii<tbl.length; ii++) {
1757             free((char*)tbl.contents[ii][4]);
1758             free(tbl.contents[ii]);
1759         }
1760         free(tbl.contents);
1761         return 0;
1762     }
1763 }
1764
1765 static MODCMD_FUNC(cmd_showcommands) {
1766     struct svccmd_list commands;
1767     struct helpfile_table tbl;
1768     struct svccmd *svccmd;
1769     dict_iterator_t it;
1770     unsigned int ii, ignore_flags = 0;
1771     unsigned int max_opserv_level = 1000;
1772     unsigned short max_chanserv_level = 500;
1773     char show_opserv_level = 0, show_channel_access = 0;
1774
1775     /* Check to see what the max access they want to see is. */
1776     for (ii=1; ii<argc; ++ii) {
1777         if (isdigit(argv[ii][0]))
1778             max_opserv_level = atoi(argv[ii]);
1779         else
1780             max_chanserv_level = user_level_from_name(argv[ii], UL_OWNER);
1781     }
1782
1783     /* Find the matching commands. */
1784     svccmd_list_init(&commands);
1785     if (cmd->parent->privileged)
1786         ignore_flags = MODCMD_REQUIRE_OPER;
1787     for (it = dict_first(cmd->parent->commands); it; it = iter_next(it)) {
1788         svccmd = iter_data(it);
1789         if (strchr(svccmd->name, ' '))
1790             continue;
1791         if (!svccmd_can_invoke(user, svccmd->parent->bot, svccmd, channel, SVCCMD_QUALIFIED))
1792             continue;
1793         if (svccmd->min_opserv_level > max_opserv_level)
1794             continue;
1795         if (svccmd->min_channel_access > max_chanserv_level)
1796             continue;
1797         if (svccmd->min_opserv_level > 0)
1798             show_opserv_level = 1;
1799         if (svccmd->min_channel_access > 0)
1800             show_channel_access = 1;
1801         if (svccmd->effective_flags
1802             & (MODCMD_REQUIRE_STAFF|MODCMD_REQUIRE_HELPING)
1803             & ~ignore_flags) {
1804             show_channel_access = 1;
1805         }
1806         svccmd_list_append(&commands, svccmd);
1807     }
1808
1809     /* Build the table. */
1810     tbl.length = commands.used + 1;
1811     tbl.width = 1 + show_opserv_level + show_channel_access;
1812     tbl.flags = TABLE_REPEAT_ROWS;
1813     tbl.contents = calloc(tbl.length, sizeof(tbl.contents[0]));
1814     tbl.contents[0] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1815     tbl.contents[0][ii = 0] = "Command";
1816     if (show_opserv_level)
1817         tbl.contents[0][++ii] = "OpServ Level";
1818     if (show_channel_access)
1819         tbl.contents[0][++ii] = "ChanServ Access";
1820     for (ii=0; ii<commands.used; ++ii) {
1821         svccmd = commands.list[ii];
1822         tbl.contents[ii+1] = calloc(tbl.width, sizeof(tbl.contents[0][0]));
1823         tbl.contents[ii+1][0] = svccmd->name;
1824         if (show_opserv_level)
1825             tbl.contents[ii+1][1] = strtab(svccmd->min_opserv_level);
1826         if (show_channel_access) {
1827             const char *access_name;
1828             int flags = svccmd->effective_flags;
1829             if (flags & MODCMD_REQUIRE_HELPING)
1830                 access_name = "helping";
1831             else if (flags & MODCMD_REQUIRE_STAFF) {
1832                 if (flags & MODCMD_REQUIRE_OPER)
1833                     access_name = "oper";
1834                 else if (flags & MODCMD_REQUIRE_NETWORK_HELPER)
1835                     access_name = "net.helper";
1836                 else
1837                     access_name = "staff";
1838             } else
1839                 access_name = strtab(svccmd->min_channel_access);
1840             tbl.contents[ii+1][1+show_opserv_level] = access_name;
1841         }
1842     }
1843     svccmd_list_clean(&commands);
1844     table_send(cmd->parent->bot, user->nick, 0, 0, tbl);
1845     return 0;
1846 }
1847
1848 static MODCMD_FUNC(cmd_helpfiles) {
1849     struct service *service;
1850     unsigned int ii;
1851
1852     if (!(service = dict_find(services, argv[1], NULL))) {
1853         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1854         return 0;
1855     }
1856
1857     if (argc < 3) {
1858         for (ii=0; ii<service->modules.used; ++ii)
1859             reply("MCMSG_HELPFILE_SEQUENCE", ii+1, service->modules.list[ii]->name);
1860         return 0;
1861     }
1862
1863     service->modules.used = 0;
1864     for (ii=0; ii<argc-2; ii++) {
1865         struct module *module = dict_find(modules, argv[ii+2], NULL);
1866         if (!module) {
1867             reply("MCMSG_UNKNOWN_MODULE", argv[ii+2]);
1868             continue;
1869         }
1870         module_list_append(&service->modules, module);
1871     }
1872     reply("MCMSG_HELPFILE_SEQUENCE_SET", service->bot->nick);
1873     return 1;
1874 }
1875
1876 static MODCMD_FUNC(cmd_service_add) {
1877     const char *nick, *hostname, *desc;
1878     struct userNode *bot;
1879
1880     nick = argv[1];
1881     if (!is_valid_nick(nick)) {
1882         reply("MCMSG_BAD_SERVICE_NICK", nick);
1883         return 0;
1884     }
1885     hostname = argv[2];
1886     desc = unsplit_string(argv+3, argc-3, NULL);
1887     bot = GetUserH(nick);
1888     if (bot && IsService(bot)) {
1889         reply("MCMSG_ALREADY_SERVICE", bot->nick);
1890         return 0;
1891     }
1892     bot = AddLocalUser(nick, nick, hostname, desc, NULL);
1893     service_register(bot);
1894     reply("MCMSG_NEW_SERVICE", bot->nick);
1895     return 1;
1896 }
1897
1898 static MODCMD_FUNC(cmd_service_rename) {
1899     struct service *service;
1900
1901     if (!(service = service_find(argv[1]))) {
1902         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1903         return 0;
1904     }
1905     NickChange(service->bot, argv[2], 0);
1906     reply("MCMSG_SERVICE_RENAMED", service->bot->nick);
1907     return 1;
1908 }
1909
1910 static MODCMD_FUNC(cmd_service_trigger) {
1911     struct userNode *bogon;
1912     struct service *service;
1913
1914     if (!(service = service_find(argv[1]))) {
1915         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1916         return 0;
1917     }
1918     if (argc < 3) {
1919         if (service->trigger)
1920             reply("MCMSG_CURRENT_TRIGGER", service->bot->nick, service->trigger);
1921         else
1922             reply("MCMSG_NO_TRIGGER", service->bot->nick);
1923         return 1;
1924     }
1925     if (service->trigger)
1926         reg_chanmsg_func(service->trigger, NULL, NULL);
1927     if (!irccasecmp(argv[2], "none") || !irccasecmp(argv[2], "remove")) {
1928         service->trigger = 0;
1929         reply("MCMSG_REMOVED_TRIGGER", service->bot->nick);
1930     } else if ((bogon = get_chanmsg_bot(argv[2][0]))) {
1931         reply("MCMSG_DUPLICATE_TRIGGER", bogon->nick, argv[2][0]);
1932         return 1;
1933     } else {
1934         service->trigger = argv[2][0];
1935         reg_chanmsg_func(service->trigger, service->bot, modcmd_chanmsg);
1936         reply("MCMSG_NEW_TRIGGER", service->bot->nick, service->trigger);
1937     }
1938     return 1;
1939 }
1940
1941 static MODCMD_FUNC(cmd_service_privileged) {
1942     struct service *service;
1943     const char *newval;
1944
1945     if (!(service = service_find(argv[1]))) {
1946         reply("MCMSG_UNKNOWN_SERVICE", argv[1]);
1947         return 0;
1948     }
1949     if (argc >= 3)
1950         service->privileged = true_string(argv[2]) || enabled_string(argv[2]);
1951     newval = user_find_message(user, service->privileged ? "MSG_ON" : "MSG_OFF");
1952     reply("MCMSG_SERVICE_PRIVILEGED", service->bot->nick, newval);
1953     return 1;
1954 }
1955
1956 static MODCMD_FUNC(cmd_service_remove) {
1957     char *name, *reason;
1958     struct service *service;
1959
1960     name = argv[1];
1961     if (argc > 2)
1962         reason = unsplit_string(argv+2, argc-2, NULL);
1963     else
1964         reason = "Removing bot";
1965     if (!(service = service_find(name))) {
1966         reply("MCMSG_UNKNOWN_SERVICE", name);
1967         return 0;
1968     }
1969     DelUser(service->bot, NULL, 1, reason);
1970     reply("MCMSG_SERVICE_REMOVED", name);
1971     dict_remove(services, name);
1972     return 1;
1973 }
1974
1975 static MODCMD_FUNC(cmd_dump_messages) {
1976     const char *fname = "strings.db";
1977     struct saxdb_context *ctx;
1978     dict_iterator_t it;
1979     FILE *pf;
1980     int res;
1981
1982     if (!(pf = fopen(fname, "w"))) {
1983         reply("MCMSG_FILE_NOT_OPENED", fname);
1984         return 0;
1985     }
1986     if (!(ctx = saxdb_open_context(pf))) {
1987         reply("MSG_INTERNAL_FAILURE");
1988         return 0;
1989     }
1990
1991     if ((res = setjmp(*saxdb_jmp_buf(ctx))) != 0) {
1992         saxdb_close_context(ctx, 1);
1993         reply("MCMSG_MESSAGE_DUMP_FAILED", strerror(res));
1994         return 0;
1995     } else {
1996         for (it = dict_first(lang_C->messages); it; it = iter_next(it))
1997             saxdb_write_string(ctx, iter_key(it), iter_data(it));
1998         saxdb_close_context(ctx, 1);
1999         reply("MCMSG_MESSAGES_DUMPED", fname);
2000         return 1;
2001     }
2002 }
2003
2004 static MODCMD_FUNC(cmd_version) {
2005     send_message_type(4, user, cmd->parent->bot, "$b"PACKAGE_STRING"+[%s]$b (Based on srvx 1.3.x), Built: "__DATE__", "__TIME__".", cvs_verstring());
2006     send_message_type(4, user, cmd->parent->bot, "See $bCREDITS$b for more information.");
2007     return 1;
2008 }
2009
2010 /* This function provides copyright management information to end
2011  * users of X3. You should not alter, disable or remove this
2012  * command or its accessibility to normal IRC users, except to add
2013  * copyright information pertaining to changes you make to X3.
2014  */
2015 static MODCMD_FUNC(cmd_credits) {
2016     send_message_type(4, user, cmd->parent->bot, "$b"PACKAGE"$b is based on srvx");
2017     send_message_type(4, user, cmd->parent->bot, "Copyright 2000-2007 srvx Development Team.");
2018     send_message_type(4, user, cmd->parent->bot, "Copyright 2004-2007 X3 Development Team.");
2019     send_message_type(4, user, cmd->parent->bot, "This software is OSI Certified Open Source Software.");
2020     send_message_type(4, user, cmd->parent->bot, "OSI Certified is a certification mark of the Open Source Initiative.");
2021     send_message_type(4, user, cmd->parent->bot, "$b$b");
2022     send_message_type(4, user, cmd->parent->bot, "The srvx 1.3.x Development Team includes Paul Chang, Adrian Dewhurst, Miles Peterson, Michael Poole and others.");
2023     send_message_type(4, user, cmd->parent->bot, "The X3 Development Team includes Alex Schumann, Reed Loden, Neil Spierling.");
2024     send_message_type(4, user, cmd->parent->bot, "The X3 Development Team can be reached at http://evilnet.sourceforge.net or in #evilnet on irc.afternet.org.");
2025     send_message_type(4, user, cmd->parent->bot, "$b$b");
2026     send_message_type(4, user, cmd->parent->bot, "Thanks goes to ThiefMaster, Joe Hansche (joeatrr), Martijn Smit (wasted), and to any other people who have contributed to X3.");
2027     send_message_type(4, user, cmd->parent->bot, "This program is free software; see COPYING in the distribution files.");
2028
2029     return 1;
2030 }
2031
2032 static void create_default_binds(int rebind);
2033
2034 static MODCMD_FUNC(cmd_rebindall) {
2035     send_message_type(4, user, cmd->parent->bot, "$bRe-binding all default commands to respective services..$b");
2036     create_default_binds(1);
2037     return 1;
2038 }
2039
2040 static MODCMD_FUNC(cmd_tell) {
2041     struct userNode *target;
2042     char *msg;
2043
2044     target = GetUserH(argv[1]);
2045     msg = unsplit_string(argv + 2, argc - 2, NULL);
2046     if (!target) {
2047         reply("MSG_NOT_TARGET_NAME");
2048         return 0;
2049     }
2050     send_message_type(MSG_TYPE_NOXLATE, target, cmd->parent->bot, "%s", msg);
2051     return 1;
2052 }
2053
2054 void
2055 modcmd_nick_change(struct userNode *user, const char *old_nick) {
2056     struct service *svc;
2057     if (!(svc = dict_find(services, old_nick, NULL)))
2058         return;
2059     dict_remove2(services, old_nick, 1);
2060     dict_insert(services, user->nick, svc);
2061 }
2062
2063 void
2064 modcmd_cleanup(void) {
2065     dict_delete(services);
2066     dict_delete(modules);
2067     if (suf_list)
2068         free(suf_list);
2069 }
2070
2071 static void
2072 modcmd_saxdb_write_command(struct saxdb_context *ctx, struct svccmd *cmd) {
2073     char buf[MAXLEN];
2074     unsigned int nn, len, pos;
2075     struct svccmd *template = cmd->command->defaults;
2076
2077     saxdb_start_record(ctx, cmd->name, 0);
2078     sprintf(buf, "%s.%s", cmd->command->parent->name, cmd->command->name);
2079     saxdb_write_string(ctx, "command", buf);
2080     if (cmd->alias.used)
2081         saxdb_write_string_list(ctx, "aliased", &cmd->alias);
2082     if (cmd->min_opserv_level != template->min_opserv_level)
2083         saxdb_write_int(ctx, "oper_access", cmd->min_opserv_level);
2084     if (cmd->min_channel_access != template->min_channel_access)
2085         saxdb_write_int(ctx, "channel_access", cmd->min_channel_access);
2086     if (cmd->flags != template->flags) {
2087         if (cmd->flags) {
2088             for (nn=pos=0; modcmd_flags[nn].name; ++nn) {
2089                 const struct modcmd_flag *flag = &modcmd_flags[nn];
2090                 if (cmd->flags & flag->flag) {
2091                     buf[pos++] = '+';
2092                     len = strlen(flag->name);
2093                     memcpy(buf+pos, flag->name, len);
2094                     pos += len;
2095                     buf[pos++] = ',';
2096                 }
2097             }
2098         } else {
2099             pos = 1;
2100         }
2101         buf[--pos] = 0;
2102         saxdb_write_string(ctx, "flags", buf);
2103     }
2104     if ((cmd->req_account_flags != template->req_account_flags)
2105         || (cmd->deny_account_flags != template->req_account_flags)) {
2106         pos = 0;
2107         if (cmd->req_account_flags) {
2108             buf[pos++] = '+';
2109             for (nn=0; nn<32; nn++)
2110                 if (cmd->req_account_flags & (1 << nn))
2111                     buf[pos++] = handle_flags[nn];
2112         }
2113         if (cmd->deny_account_flags) {
2114             buf[pos++] = '-';
2115             for (nn=0; nn<32; nn++)
2116                 if (cmd->deny_account_flags & (1 << nn))
2117                     buf[pos++] = handle_flags[nn];
2118         }
2119         buf[pos] = 0;
2120         saxdb_write_string(ctx, "account_flags", buf);
2121     }
2122     saxdb_end_record(ctx);
2123 }
2124
2125 static int
2126 modcmd_saxdb_write(struct saxdb_context *ctx) {
2127     struct string_list slist;
2128     dict_iterator_t it, it2;
2129     struct service *service;
2130     unsigned int ii;
2131
2132     saxdb_start_record(ctx, "bots", 1);
2133     for (it = dict_first(services); it; it = iter_next(it)) {
2134         char buff[16];
2135         service = iter_data(it);
2136         saxdb_start_record(ctx, service->bot->nick, 1);
2137         if (service->trigger) {
2138             buff[0] = service->trigger;
2139             buff[1] = '\0';
2140             saxdb_write_string(ctx, "trigger", buff);
2141         }
2142         saxdb_write_string(ctx, "description", service->bot->info);
2143         saxdb_write_string(ctx, "hostname", service->bot->hostname);
2144         if (service->privileged)
2145             saxdb_write_string(ctx, "privileged", "1");
2146         saxdb_end_record(ctx);
2147     }
2148     saxdb_end_record(ctx);
2149
2150     saxdb_start_record(ctx, "services", 1);
2151     for (it = dict_first(services); it; it = iter_next(it)) {
2152         service = iter_data(it);
2153         saxdb_start_record(ctx, service->bot->nick, 1);
2154         for (it2 = dict_first(service->commands); it2; it2 = iter_next(it2))
2155             modcmd_saxdb_write_command(ctx, iter_data(it2));
2156         saxdb_end_record(ctx);
2157     }
2158     saxdb_end_record(ctx);
2159
2160     saxdb_start_record(ctx, "helpfiles", 1);
2161     slist.size = 0;
2162     for (it = dict_first(services); it; it = iter_next(it)) {
2163         service = iter_data(it);
2164         slist.used = 0;
2165         for (ii = 0; ii < service->modules.used; ++ii)
2166             string_list_append(&slist, service->modules.list[ii]->name);
2167         saxdb_write_string_list(ctx, iter_key(it), &slist);
2168     }
2169     if (slist.list)
2170         free(slist.list);
2171     saxdb_end_record(ctx);
2172
2173     return 0;
2174 }
2175
2176 static int
2177 append_entry(const char *key, UNUSED_ARG(void *data), void *extra) {
2178     struct helpfile_expansion *exp = extra;
2179     int row = exp->value.table.length++;
2180     exp->value.table.contents[row] = calloc(1, sizeof(char*));
2181     exp->value.table.contents[row][0] = key;
2182     return 0;
2183 }
2184
2185 static struct helpfile_expansion
2186 modcmd_expand(const char *variable) {
2187     struct helpfile_expansion exp;
2188     extern struct userNode *message_source;
2189     struct service *service;
2190
2191     service = dict_find(services, message_source->nick, NULL);
2192     if (!irccasecmp(variable, "index")) {
2193         exp.type = HF_TABLE;
2194         exp.value.table.length = 1;
2195         exp.value.table.width = 1;
2196         exp.value.table.flags = TABLE_REPEAT_ROWS | TABLE_NO_HEADERS;
2197         exp.value.table.contents = calloc(dict_size(service->commands)+1, sizeof(char**));
2198         exp.value.table.contents[0] = calloc(1, sizeof(char*));
2199         exp.value.table.contents[0][0] = "Commands";
2200         dict_foreach(service->commands, append_entry, &exp);
2201         return exp;
2202     } else if (!irccasecmp(variable, "languages")) {
2203         struct string_buffer sbuf;
2204         dict_iterator_t it;
2205         sbuf.used = sbuf.size = 0;
2206         sbuf.list = NULL;
2207         for (it = dict_first(languages); it; it = iter_next(it)) {
2208             string_buffer_append_string(&sbuf, iter_key(it));
2209             string_buffer_append(&sbuf, ' ');
2210         }
2211         sbuf.list[--sbuf.used] = 0;
2212         exp.type = HF_STRING;
2213         exp.value.str = sbuf.list;
2214         return exp;
2215     }
2216     exp.type = HF_STRING;
2217     exp.value.str = NULL;
2218     return exp;
2219 }
2220
2221 static void
2222 modcmd_load_bots(struct dict *db, int default_nick) {
2223     dict_iterator_t it;
2224
2225     for (it = dict_first(db); it; it = iter_next(it)) {
2226         struct record_data *rd;
2227         struct service *svc;
2228         const char *nick, *desc, *hostname;
2229
2230         rd = iter_data(it);
2231         if (rd->type != RECDB_OBJECT) {
2232             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'bots/%s' in modcmd db (expected object).", iter_key(it));
2233             continue;
2234         }
2235         nick = database_get_data(rd->d.object, "nick", RECDB_QSTRING);
2236         if (!nick) {
2237             if (default_nick)
2238                 nick = iter_key(it);
2239             else
2240                 continue;
2241         }
2242         svc = service_find(nick);
2243         desc = database_get_data(rd->d.object, "description", RECDB_QSTRING);
2244         hostname = database_get_data(rd->d.object, "hostname", RECDB_QSTRING);
2245         if (desc) {
2246             if (!svc)
2247                 svc = service_register(AddLocalUser(nick, nick, hostname, desc, NULL));
2248             else if (hostname)
2249                 strcpy(svc->bot->hostname, hostname);
2250             desc = database_get_data(rd->d.object, "trigger", RECDB_QSTRING);
2251             if (desc)
2252                 svc->trigger = desc[0];
2253             desc = database_get_data(rd->d.object, "privileged", RECDB_QSTRING);
2254             if (desc && (true_string(desc) || enabled_string(desc)))
2255                 svc->privileged = 1;
2256         }
2257     }
2258 }
2259
2260 static void
2261 modcmd_conf_read(void) {
2262     modcmd_load_bots(conf_get_data("services", RECDB_OBJECT), 0);
2263 }
2264
2265 void
2266 modcmd_init(void) {
2267     qsort(modcmd_flags, ArrayLength(modcmd_flags)-1, sizeof(modcmd_flags[0]), flags_qsort);
2268     modules = dict_new();
2269     dict_set_free_data(modules, free_module);
2270     services = dict_new();
2271     dict_set_free_data(services, free_service);
2272     reg_nick_change_func(modcmd_nick_change);
2273     reg_exit_func(modcmd_cleanup);
2274     conf_register_reload(modcmd_conf_read);
2275
2276     modcmd_module = module_register("modcmd", MAIN_LOG, "modcmd.help", modcmd_expand);
2277     bind_command = modcmd_register(modcmd_module, "bind", cmd_bind, 4, MODCMD_KEEP_BOUND, "oper_level", "800", NULL);
2278     help_command = modcmd_register(modcmd_module, "help", cmd_help, 1, 0, "flags", "+nolog", NULL);
2279     modcmd_register(modcmd_module, "command", cmd_command, 2, 0, "flags", "+nolog", NULL);
2280     modcmd_register(modcmd_module, "modcmd", cmd_modcmd, 2, MODCMD_KEEP_BOUND, "template", "bind", NULL);
2281     modcmd_register(modcmd_module, "god", cmd_god, 0, MODCMD_REQUIRE_AUTHED, "flags", "+oper,+networkhelper", NULL);
2282     modcmd_register(modcmd_module, "readhelp", cmd_readhelp, 2, 0, "oper_level", "650", NULL);
2283     modcmd_register(modcmd_module, "timecmd", cmd_timecmd, 2, 0, "oper_level", "1", NULL);
2284     modcmd_register(modcmd_module, "unbind", cmd_unbind, 3, 0, "template", "bind", NULL);
2285     modcmd_register(modcmd_module, "joiner", cmd_joiner, 1, 0, NULL);
2286     modcmd_register(modcmd_module, "stats modules", cmd_stats_modules, 1, 0, "flags", "+oper", NULL);
2287     modcmd_register(modcmd_module, "stats services", cmd_stats_services, 1, 0, "flags", "+oper", NULL);
2288     modcmd_register(modcmd_module, "showcommands", cmd_showcommands, 1, 0, "flags", "+acceptchan", NULL);
2289     modcmd_register(modcmd_module, "helpfiles", cmd_helpfiles, 2, 0, "template", "bind", NULL);
2290     modcmd_register(modcmd_module, "service add", cmd_service_add, 4, 0, "flags", "+oper", NULL);
2291     modcmd_register(modcmd_module, "service rename", cmd_service_rename, 3, 0, "flags", "+oper", NULL);
2292     modcmd_register(modcmd_module, "service trigger", cmd_service_trigger, 2, 0, "flags", "+oper", NULL);
2293     modcmd_register(modcmd_module, "service privileged", cmd_service_privileged, 2, 0, "flags", "+oper", NULL);
2294     modcmd_register(modcmd_module, "service remove", cmd_service_remove, 2, 0, "flags", "+oper", NULL);
2295     modcmd_register(modcmd_module, "dumpmessages", cmd_dump_messages, 1, 0, "oper_level", "1000", NULL);
2296     modcmd_register(modcmd_module, "tell", cmd_tell, 3, 0, "flags", "+oper", NULL);
2297     modcmd_register(modcmd_module, "rebindall", cmd_rebindall, 0, MODCMD_KEEP_BOUND, "oper_level", "800", NULL);
2298     version_command = modcmd_register(modcmd_module, "version", cmd_version, 1, 0, NULL);
2299     credits_command = modcmd_register(modcmd_module, "credits", cmd_credits, 1, 0, NULL);
2300     message_register_table(msgtab);
2301
2302 }
2303
2304 static void
2305 modcmd_db_load_command(struct service *service, const char *cmdname, struct dict *obj) {
2306     struct svccmd *svccmd;
2307     struct module *module;
2308     struct modcmd *modcmd;
2309     struct string_list *slist;
2310     const char *str, *sep;
2311     char buf[MAXLEN];
2312
2313     str = database_get_data(obj, "command", RECDB_QSTRING);
2314     if (!str) {
2315         log_module(MAIN_LOG, LOG_ERROR, "Missing command for service %s command %s in modcmd.db", service->bot->nick, cmdname);
2316         return;
2317     }
2318     sep = strchr(str, '.');
2319     if (!sep) {
2320         log_module(MAIN_LOG, LOG_ERROR, "Invalid command %s for service %s command %s in modcmd.db", str, service->bot->nick, cmdname);
2321         return;
2322     }
2323     memcpy(buf, str, sep-str);
2324     buf[sep-str] = 0;
2325     if (!(module = module_find(buf))) {
2326         log_module(MAIN_LOG, LOG_ERROR, "Unknown module %s for service %s command %s in modcmd.db", buf, service->bot->nick, cmdname);
2327         return;
2328     }
2329     if (!(modcmd = dict_find(module->commands, sep+1, NULL))) {
2330         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);
2331         return;
2332     }
2333     /* Now that we know we have a command to use, fill in the basics. */
2334     svccmd = calloc(1, sizeof(*svccmd));
2335     svccmd_insert(service, strdup(cmdname), svccmd, modcmd);
2336     if ((str = database_get_data(obj, "template", RECDB_QSTRING))) {
2337         add_pending_template(svccmd, str);
2338     } else {
2339         svccmd_copy_rules(svccmd, modcmd->defaults);
2340     }
2341     if ((str = database_get_data(obj, "account_flags", RECDB_QSTRING))) {
2342         svccmd->req_account_flags = svccmd->deny_account_flags = 0;
2343         svccmd_configure(svccmd, NULL, service->bot, "account_flags", str);
2344     }
2345     if ((str = database_get_data(obj, "flags", RECDB_QSTRING))) {
2346         svccmd->flags = 0;
2347         svccmd_configure(svccmd, NULL, service->bot, "flags", str);
2348     }
2349     if ((str = database_get_data(obj, "oper_access", RECDB_QSTRING))
2350         || (str = database_get_data(obj, "opserv_level", RECDB_QSTRING))) {
2351         svccmd_configure(svccmd, NULL, service->bot, "oper_access", str);
2352     }
2353     if ((str = database_get_data(obj, "channel_access", RECDB_QSTRING))
2354         || (str = database_get_data(obj, "chanserv_level", RECDB_QSTRING))) {
2355         svccmd_configure(svccmd, NULL, service->bot, "channel_access", str);
2356     }
2357     if ((slist = database_get_data(obj, "aliased", RECDB_STRING_LIST))) {
2358         unsigned int nn;
2359         svccmd->alias.used = svccmd->alias.size = slist->used;
2360         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2361         for (nn=0; nn<slist->used; ++nn)
2362             svccmd->alias.list[nn] = strdup(slist->list[nn]);
2363     }
2364     modcmd_set_effective_flags(svccmd);
2365 }
2366
2367 static struct svccmd *
2368 service_make_alias(struct service *service, const char *alias, ...) {
2369     char *arg, *argv[MAXNUMPARAMS];
2370     unsigned int nn, argc;
2371     struct svccmd *svccmd, *template;
2372     va_list args;
2373
2374     va_start(args, alias);
2375     argc = 0;
2376     while (1) {
2377         arg = va_arg(args, char*);
2378         if (!arg)
2379             break;
2380         argv[argc++] = arg;
2381     }
2382     va_end(args);
2383     svccmd = calloc(1, sizeof(*svccmd));
2384     if (!(template = svccmd_resolve_name(svccmd, argv[0]))) {
2385         log_module(MAIN_LOG, LOG_ERROR, "Invalid base command %s for alias %s in service %s", argv[0], alias, service->bot->nick);
2386         free(svccmd->name);
2387         free(svccmd);
2388         return NULL;
2389     }
2390     if (argc > 1) {
2391         svccmd->alias.used = svccmd->alias.size = argc;
2392         svccmd->alias.list = calloc(svccmd->alias.size, sizeof(svccmd->alias.list[0]));
2393         for (nn=0; nn<argc; nn++)
2394             svccmd->alias.list[nn] = strdup(argv[nn]);
2395     }
2396     svccmd_insert(service, strdup(alias), svccmd, template->command);
2397     svccmd_copy_rules(svccmd, template);
2398     return svccmd;
2399 }
2400
2401 static int saxdb_present;
2402
2403 static int
2404 modcmd_saxdb_read(struct dict *db) {
2405     struct dict *db2;
2406     dict_iterator_t it, it2;
2407     struct record_data *rd, *rd2;
2408     struct service *service;
2409
2410     modcmd_load_bots(database_get_data(db, "bots", RECDB_OBJECT), 1);
2411     db2 = database_get_data(db, "services", RECDB_OBJECT);
2412     if (!db2) {
2413         log_module(MAIN_LOG, LOG_ERROR, "Missing section 'services' in modcmd db.");
2414         return 1;
2415     }
2416     for (it = dict_first(db2); it; it = iter_next(it)) {
2417         rd = iter_data(it);
2418         if (rd->type != RECDB_OBJECT) {
2419             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s' in modcmd db (expected object).", iter_key(it));
2420             continue;
2421         }
2422         if (!(service = service_find(iter_key(it)))) {
2423             log_module(MAIN_LOG, LOG_ERROR, "Unknown service '%s' listed in modcmd db.", iter_key(it));
2424             continue;
2425         }
2426         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2427             rd2 = iter_data(it2);
2428             if (rd2->type != RECDB_OBJECT) {
2429                 log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'services/%s/%s' in modcmd db (expected object).", iter_key(it), iter_key(it2));
2430                 continue;
2431             }
2432             modcmd_db_load_command(service, iter_key(it2), rd2->d.object);
2433         }
2434     }
2435     db2 = database_get_data(db, "helpfiles", RECDB_OBJECT);
2436     for (it = dict_first(db2); it; it = iter_next(it)) {
2437         struct module *module;
2438         struct string_list *slist;
2439         unsigned int ii;
2440
2441         rd = iter_data(it);
2442         if (rd->type != RECDB_STRING_LIST) {
2443             log_module(MAIN_LOG, LOG_ERROR, "Bad type for 'helpfiles/%s' in modcmd db (expected string list).", iter_key(it));
2444             continue;
2445         }
2446         slist = rd->d.slist;
2447         if (!(service = service_find(iter_key(it)))) {
2448             /* We probably whined about the service being missing above. */
2449             continue;
2450         }
2451         service->modules.used = 0;
2452         for (ii=0; ii<slist->used; ++ii) {
2453             if (!(module = dict_find(modules, slist->list[ii], NULL))) {
2454                 log_module(MAIN_LOG, LOG_ERROR, "Unknown module '%s' listed in modcmd 'helpfiles/%s'.", slist->list[ii], iter_key(it));
2455                 continue;
2456             }
2457             module_list_append(&service->modules, module);
2458         }
2459     }
2460     saxdb_present = 1;
2461     return 0;
2462 }
2463
2464 static void
2465 create_default_binds(int rebind) {
2466     /* Which services should import which modules by default? */
2467     struct {
2468         const char *svcname;
2469         /* C is lame and requires a fixed size for this array.
2470          * Be sure you NULL-terminate each array and increment the
2471          * size here if you add more default modules to any
2472          * service. */
2473         const char *modnames[8];
2474     } def_binds[] = {
2475         { "ChanServ", { "ChanServ", NULL } },
2476         { "Global", { "Global", NULL } },
2477         { "NickServ", { "NickServ", NULL } },
2478         { "OpServ", { "OpServ", "modcmd", "sendmail", "saxdb", "proxycheck", NULL } },
2479         { "SpamServ", { "SpamServ", NULL } },
2480         { NULL, { NULL } }
2481     };
2482     unsigned int ii, jj;
2483     char buf[128], *nick;
2484     struct service *service;
2485     struct module *module;
2486
2487     for (ii = 0; def_binds[ii].svcname; ++ii) {
2488         sprintf(buf, "services/%s/nick", def_binds[ii].svcname);
2489         if (!(nick = conf_get_data(buf, RECDB_QSTRING)))
2490             continue;
2491         if (!(service = service_find(nick)))
2492             continue;
2493         if (dict_size(service->commands) > 0 && !rebind)
2494             continue;
2495
2496         /* Bind the default modules for this service to it */
2497         for (jj = 0; def_binds[ii].modnames[jj]; ++jj) {
2498             if (!(module = module_find(def_binds[ii].modnames[jj])))
2499                 continue;
2500             service_bind_module(service, module);
2501         }
2502
2503         /* Bind the help and version commands to this service */
2504         service_bind_modcmd(service, help_command, help_command->name);
2505         service_bind_modcmd(service, version_command, version_command->name);
2506         service_bind_modcmd(service, credits_command, credits_command->name);
2507
2508         /* Now some silly hax.. (aliases that most people want) */
2509         if (!irccasecmp(def_binds[ii].svcname, "ChanServ")) {
2510             service_make_alias(service, "addowner", "*chanserv.adduser", "$1", "owner", "$2", NULL);
2511             service_make_alias(service, "addcoowner", "*chanserv.adduser", "$1", "coowner", "$2", NULL);
2512             service_make_alias(service, "addco", "*chanserv.adduser", "$1", "coowner", "$2", NULL);
2513             service_make_alias(service, "addmanager", "*chanserv.adduser", "$1", "manager", "$2", NULL);
2514             service_make_alias(service, "addop", "*chanserv.adduser", "$1", "op", "$2", NULL);
2515             service_make_alias(service, "addhop", "*chanserv.adduser", "$1", "halfop", "$2", NULL);
2516             service_make_alias(service, "addpeon", "*chanserv.adduser", "$1", "peon", "$2", NULL);
2517             service_make_alias(service, "addpal", "*chanserv.adduser", "$1", "pal", "$2", NULL);
2518             service_make_alias(service, "delowner", "*chanserv.deluser", "owner", "$1", NULL);
2519             service_make_alias(service, "delcoowner", "*chanserv.deluser", "coowner", "$1", NULL);
2520             service_make_alias(service, "delmanager", "*chanserv.deluser", "manager", "$1", NULL);
2521             service_make_alias(service, "delop", "*chanserv.deluser", "op", "$1", NULL);
2522             service_make_alias(service, "delpeon", "*chanserv.deluser", "peon", "$1", NULL);
2523             service_make_alias(service, "delpal", "*chanserv.deluser", "pal", "$1", NULL);
2524             service_make_alias(service, "llist", "*chanserv.lamers", "$1",  NULL);
2525             service_make_alias(service, "command", "*modcmd.command", NULL);
2526             service_make_alias(service, "god", "*modcmd.god", NULL);
2527         } else if (!irccasecmp(def_binds[ii].svcname, "OpServ")) {
2528             struct svccmd *svccmd;
2529             svccmd = service_make_alias(service, "stats", "*modcmd.joiner", NULL);
2530             svccmd->min_opserv_level = 101;
2531             svccmd = service_make_alias(service, "service", "*modcmd.joiner", NULL);
2532             svccmd->min_opserv_level = 900;
2533             svccmd = service_make_alias(service, "routing", "*modcmd.joiner", NULL);
2534             svccmd->min_opserv_level = 100;
2535         }
2536     }
2537 }
2538
2539 static void
2540 import_aliases_db() {
2541     struct dict *db;
2542     dict_iterator_t it, it2;
2543     struct record_data *rd, *rd2;
2544     struct service *service;
2545     struct module *module;
2546
2547     if (!(db = parse_database("aliases.db")))
2548         return;
2549     for (it = dict_first(db); it; it = iter_next(it)) {
2550         service = service_find(iter_key(it));
2551         if (!service)
2552             continue;
2553         module = module_find(service->bot->nick);
2554         rd = iter_data(it);
2555         if (rd->type != RECDB_OBJECT)
2556             continue;
2557         for (it2 = dict_first(rd->d.object); it2; it2 = iter_next(it2)) {
2558             struct modcmd *command;
2559             rd2 = iter_data(it2);
2560             if (rd2->type != RECDB_QSTRING)
2561                 continue;
2562             command = dict_find(module->commands, rd2->d.qstring, NULL);
2563             if (!command)
2564                 continue;
2565             service_bind_modcmd(service, command, iter_key(it2));
2566         }
2567     }
2568 }
2569
2570 void
2571 modcmd_finalize(void) {
2572     dict_iterator_t it;
2573
2574     /* Check databases. */
2575     saxdb_register("modcmd", modcmd_saxdb_read, modcmd_saxdb_write);
2576     create_default_binds(0);
2577     if (!saxdb_present)
2578         import_aliases_db();
2579
2580     /* Register services for their triggers. */
2581     for (it = dict_first(services); it; it = iter_next(it)) {
2582         struct service *svc = iter_data(it);
2583         if (svc->trigger)
2584             reg_chanmsg_func(svc->trigger, svc->bot, modcmd_chanmsg);
2585     }
2586
2587     /* Resolve command rule-templates. */
2588     while (pending_templates) {
2589         struct pending_template *ptempl = pending_templates;
2590         struct svccmd *svccmd;
2591
2592         pending_templates = ptempl->next;
2593         /* Only overwrite the current template if we have a valid template. */
2594         if (!strcmp(ptempl->base, "*")) {
2595             /* Do nothing. */
2596         } else if ((svccmd = svccmd_resolve_name(ptempl->cmd, ptempl->base))) {
2597             svccmd_copy_rules(ptempl->cmd, svccmd);
2598         } else {
2599             assert(ptempl->cmd->parent);
2600             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);
2601         }
2602         free(ptempl->base);
2603         free(ptempl);
2604     }
2605 }