noperserv/noperserv.c

   1 /*
   2  * NOperserv v0.01
   3  *
   4  * A replacement for Germania's ageing Operservice2
   5  *
   6  * Copyright (C) 2005 Chris Porter.
   7  */
   8
   9 #include "../localuser/localuser.h"
  10 #include "../lib/irc_string.h"
  11 #include "../lib/strlfunc.h"
  12 #include "../lib/version.h"
  13 #include "../authext/authext.h"
  14 #include "noperserv.h"
  15 #include "noperserv_db.h"
  16 #include "noperserv_hooks.h"
  17 #include "noperserv_policy.h"
  18
  19 #include <stdio.h>
  20 #include <string.h>
  21 #include <stdarg.h>
  22
  23 MODULE_VERSION("");
  24
  25 #define FLAGBUFLEN 100
  26
  27 #define NO_FOUND_NICKNAME 1
  28 #define NO_FOUND_AUTHNAME 2
  29
  30 const flag no_commandflags[] = {
  31     { 'o', __NO_OPER },
  32     { 't', __NO_TRUST },
  33     { 's', __NO_STAFF },
  34     { 'S', __NO_SEC },
  35     { 'd', __NO_DEVELOPER },
  36     { 'L', __NO_LEGACY },
  37     { 'O', __NO_OPERED },
  38     { 'r', __NO_AUTHED },
  39     { 'R', __NO_ACCOUNT },
  40     { 'Y', __NO_RELAY },
  41     { '\0', 0 }
  42   };
  43
  44 const flag no_userflags[] = {
  45     { 'o', __NO_OPER },
  46     { 't', __NO_TRUST },
  47     { 's', __NO_STAFF },
  48     { 'S', __NO_SEC },
  49     { 'd', __NO_DEVELOPER },
  50     { 'Y', __NO_RELAY },
  51     { '\0', 0 }
  52   };
  53
  54 const flag no_noticeflags[] = {
  55     { 'm', NL_MANAGEMENT },   /* hello, password, userflags, noticeflags */
  56     { 't', NL_TRUSTS },       /* trust stuff... */
  57     { 'k', NL_KICKKILLS },    /* KICK/KILL commands */
  58     { 'I', NL_MISC },         /* misc commands */
  59     { 'g', NL_GLINES },       /* GLINE commands */
  60     { 'h', NL_HITS },         /* Where a gline or kill is set automatically by the bot */
  61     { 'c', NL_CLONING },      /* Clone detection */
  62     { 'C', NL_CLEARCHAN },    /* When someone clearchans */
  63     { 'f', NL_FAKEUSERS },    /* Fakeuser addition */
  64     { 'b', NL_BROADCASTS },   /* Broadcast/mbroadcast/sbroadcast */
  65     { 'o', NL_OPERATIONS },   /* insmod/rmmod/etc */
  66     { 'O', NL_OPERING },      /* when someone opers */
  67     { 'n', NL_NOTICES },      /* turn off to receive notices instead of privmsgs */
  68     { 'A', NL_ALL_COMMANDS }, /* all commands sent */
  69     { '\0', 0 }
  70   };
  71
  72 int noperserv_hello(void *sender, int cargc, char **cargv);
  73 int noperserv_noticeflags(void *sender, int cargc, char **cargv);
  74 int noperserv_userflags(void *sender, int cargc, char **cargv);
  75 int noperserv_deluser(void *sender, int cargc, char **cargv);
  76 void noperserv_oper_detection(int hooknum, void *arg);
  77 void noperserv_reply(nick *np, char *format, ...) __attribute__ ((format (printf, 2, 3)));
  78
  79 int init = 0;
  80
  81 void _init() {
  82   if(!noperserv_load_db())
  83     return;
  84
  85   noperserv_ext = registernickext("noperserv");
  86
  87   noperserv_setup_hooks();
  88
  89   registercontrolhelpcmd("hello", NO_OPERED | NO_AUTHED, 1, &noperserv_hello, "Syntax: HELLO ?nickname|#authname?\nCreates an account on the service for the specified nick, or if one isn't supplied, your nickname.");
  90   registercontrolhelpcmd("userflags", NO_ACCOUNT, 2, &noperserv_userflags,
  91     "Syntax: USERFLAGS <nickname|#authname> ?modifications?\n"
  92     " Views and modifies user permissions.\n"
  93     " If no nickname or authname is supplied, you are substituted for it.\n"
  94     " If no flags are supplied, flags are just displayed instead of modified."
  95     " Flags:\n"
  96     "  +o: Operator\n"
  97     "  +s: Staff member\n"
  98     "  +S: Security team member\n"
  99     "  +d: NOperserv developer\n"
 100     "  +t: Trust queue worker\n"
 101     "  +Y: Relay\n"
 102     " Additional flags may show up in SHOWCOMMANDS but are not userflags as such:\n"
 103     "  +r: Authed user\n"
 104     "  +R: Registered NOperserv user\n"
 105     "  +O: Must be /OPER'ed\n"
 106     "  +L: Legacy command\n"
 107   );
 108   registercontrolhelpcmd("noticeflags", NO_ACCOUNT, 1, &noperserv_noticeflags,
 109     "Syntax: NOTICEFLAGS ?(nickname|#authname)|flags?\n"
 110     " This command can view and modify your own notice flags, and view that of other users.\n"
 111     " Flags:\n"
 112     "  +m: Management (hello, password, userflags, noticeflags)\n"
 113     "  +t: Trusts\n"
 114     "  +k: KICK/KILL commands\n"
 115     "  +g: GLINE commands\n"
 116     "  +h: Shows when glines are set by code (hits)\n"
 117     "  +c: Clone information\n"
 118     "  +C: CLEARCHAN command\n"
 119     "  +f: FAKEUSER commands\n"
 120     "  +b: BROADCAST commands\n"
 121     "  +o: Operation commands, such as insmod, rmmod, die, etc\n"
 122     "  +O: /OPER\n"
 123     "  +I: Misc commands (resync, etc)\n"
 124     "  +n: Sends notices instead of privmsgs\n"
 125     "  +A: Every single command sent to the service (spammy)\n"
 126   );
 127
 128   registercontrolhelpcmd("deluser", NO_OPERED | NO_ACCOUNT, 2, &noperserv_deluser, "Syntax: DELUSER <nickname|#authname>\nDeletes the specified user.");
 129   registerhook(HOOK_NICK_MODEOPER, &noperserv_oper_detection);
 130
 131   init = 1;
 132 }
 133
 134 #ifdef BROKEN_DLCLOSE
 135 void __fini() {
 136 #else
 137 void _fini() {
 138 #endif
 139   if(!init)
 140     return;
 141
 142   deregisterhook(HOOK_NICK_MODEOPER, &noperserv_oper_detection);
 143
 144   deregistercontrolcmd("noticeflags", &noperserv_noticeflags);
 145   deregistercontrolcmd("userflags", &noperserv_userflags);
 146   deregistercontrolcmd("noticeflags", &noperserv_noticeflags);
 147   deregistercontrolcmd("hello", &noperserv_hello);
 148   deregistercontrolcmd("deluser", &noperserv_deluser);
 149
 150   noperserv_cleanup_hooks();
 151
 152   noperserv_cleanup_db();
 153
 154   releasenickext(noperserv_ext);
 155 }
 156
 157 /* @test */
 158 int noperserv_hello(void *sender, int cargc, char **cargv) {
 159   char *newaccount = NULL;
 160   no_autheduser *au;
 161   int i;
 162   nick *np = (nick *)sender, *np2, *target = NULL;
 163
 164   if(cargc == 0) {
 165     newaccount = np->authname;
 166   } else {
 167     if(cargv[0][0] == '#') {
 168       authname *a = getauthbyname(cargv[0] + 1);
 169       if(!a) {
 170         controlreply(np, "Cannot find anyone with that authname on the network.");
 171         return CMD_ERROR;
 172       }
 173       newaccount = a->name;
 174     } else {
 175       target = getnickbynick(cargv[0]);
 176       if(!target) {
 177         controlreply(np, "Supplied nickname is not on the network.");
 178         return CMD_ERROR;
 179       }
 180       if(!IsAccount(target)) {
 181         controlreply(np, "Supplied user is not authed with the network.");
 182         return CMD_ERROR;
 183       }
 184       newaccount = target->authname;
 185     }
 186   }
 187   au = noperserv_get_autheduser(newaccount);
 188   if(au) {
 189     controlreply(np, "Authname already registered.");
 190     return CMD_ERROR;
 191   }
 192
 193   au = noperserv_new_autheduser(newaccount);
 194   if(!au) {
 195     controlreply(np, "Memory allocation error.");
 196     return CMD_ERROR;
 197   }
 198
 199   if(noperserv_get_autheduser_count() == 1) {
 200     au->authlevel = NO_FIRST_USER_LEVEL;
 201     au->noticelevel = NO_FIRST_USER_DEFAULT_NOTICELEVEL;
 202   } else {
 203     au->authlevel = NO_DEFAULT_LEVEL;
 204     au->noticelevel = NO_DEFAULT_NOTICELEVEL;
 205   }
 206
 207   au->id = noperserv_next_autheduser_id();
 208   noperserv_update_autheduser(au);
 209
 210   for(i=0;i<NICKHASHSIZE;i++)
 211     for(np2=nicktable[i];np2;np2=np2->next)
 212       if(IsAccount(np2) && !ircd_strcmp(newaccount, np2->authname)) {
 213         noperserv_add_to_autheduser(np2, au);
 214         controlreply(np2, "An account has been created for you (auth %s).", au->authname->content);
 215         if(NOGetAuthLevel(au))
 216           controlreply(np2, "User flags: %s", printflags(NOGetAuthLevel(au), no_userflags));
 217         controlreply(np2, "Notice flags: %s", printflags(NOGetNoticeLevel(au), no_noticeflags));
 218       }
 219
 220   if(ircd_strcmp(np->authname, newaccount)) { /* send a message to the person who HELLO'ed if we haven't already been told */
 221     controlreply(np, "Account created for auth %s.", au->authname->content);
 222     if(NOGetAuthLevel(au))
 223       controlreply(np, "User flags: %s", printflags(NOGetAuthLevel(au), no_userflags));
 224     controlreply(np, "Notice flags: %s", printflags(NOGetNoticeLevel(au), no_noticeflags));
 225     controlreply(np, "Instructions sent to all authed users.");
 226   } else if(au->nick && au->nick->next) { /* if we have already been told, tell the user it was sent to more than themselves */
 227     controlreply(np, "Instructions sent to all authed users.");
 228   }
 229
 230   controlwall(NO_OPERED, NL_MANAGEMENT, "%s/%s just HELLO'ed: %s", np->nick, np->authname, au->authname->content);
 231   return CMD_OK;
 232 }
 233
 234 no_autheduser *noperserv_autheduser_from_command(nick *np, char *command, int *typefound, char **returned) {
 235   no_autheduser *au;
 236   if(command[0] == '#') {
 237     au = noperserv_get_autheduser(command + 1);
 238     if(!au) {
 239       controlreply(np, "Authname not found.");
 240     } else {
 241       *typefound = NO_FOUND_AUTHNAME;
 242       *returned = au->authname->content;
 243       return au;
 244     }
 245   } else {
 246     nick *np2 = getnickbynick(command);
 247     if(!np2) {
 248       controlreply(np, "Nickname not on the network.");
 249       return CMD_OK;
 250     }
 251     if(!IsAccount(np2)) {
 252       controlreply(np, "User is not authed with the network.");
 253       return CMD_OK;
 254     }
 255     au = NOGetAuthedUser(np2);
 256     if(!au) {
 257       controlreply(np, "User does not have an account.");
 258     } else {
 259       *typefound = NO_FOUND_NICKNAME;
 260       *returned = np2->nick;
 261       return au;
 262     }
 263   }
 264
 265   return NULL;
 266 }
 267
 268 int noperserv_noticeflags(void *sender, int cargc, char **cargv) {
 269   nick *np = (nick *)sender;
 270   no_autheduser *au;
 271
 272   if(cargc == 1) {
 273     if((cargv[0][0] == '+') || (cargv[0][0] == '-')) {
 274       int ret;
 275       au = NOGetAuthedUser(np);
 276       flag_t fwas = NOGetNoticeLevel(au), permittedchanges = noperserv_policy_permitted_noticeflags(au);
 277
 278       ret = setflags(&au->noticelevel, permittedchanges, cargv[0], no_noticeflags, REJECT_DISALLOWED | REJECT_UNKNOWN);
 279       if(ret != REJECT_UNKNOWN) {
 280         if(ret == REJECT_DISALLOWED) {
 281           flag_t fnow = fwas;
 282           setflags(&fnow, NL_ALL, cargv[0], no_noticeflags, REJECT_NONE);
 283           if(fnow == fwas) {
 284             controlreply(np, "No changes made to existing flags.");
 285           } else {
 286             char ourflags[FLAGBUFLEN], ournoticeflags[FLAGBUFLEN];
 287             controlreply(np, "Flag alterations denied.");
 288
 289             strlcpy(ourflags, printflags(NOGetAuthLevel(au), no_userflags), sizeof(ourflags));
 290             strlcpy(ournoticeflags, printflags(NOGetNoticeLevel(au), no_noticeflags), sizeof(ournoticeflags));
 291             controlwall(NO_OPER, NL_MANAGEMENT, "%s/%s (%s) attempted to NOTICEFLAGS (%s): %s", np->nick, np->authname, ourflags, ournoticeflags, printflagdiff(fwas, fnow, no_noticeflags));
 292             return CMD_ERROR;
 293           }
 294         } else if(ret == REJECT_NONE) {
 295           if(NOGetNoticeLevel(au) == fwas) {
 296             controlreply(np, "No changes made to existing flags.");
 297           } else {
 298             char ourflags[FLAGBUFLEN], ournoticeflags[FLAGBUFLEN], diff[FLAGBUFLEN * 2 + 1], finalflags[FLAGBUFLEN];
 299             no_nicklist *nl = au->nick;
 300             noperserv_update_autheduser(au);
 301             controlreply(np, "Flag alterations complete.");
 302
 303             strlcpy(ourflags, printflags(NOGetAuthLevel(au), no_userflags), sizeof(ourflags));
 304             strlcpy(ournoticeflags, printflags(fwas, no_noticeflags), sizeof(ournoticeflags));
 305             strlcpy(diff, printflagdiff(fwas, NOGetNoticeLevel(au), no_noticeflags), sizeof(diff));
 306             controlwall(NO_OPER, NL_MANAGEMENT, "%s/%s (%s) successfully used NOTICEFLAGS (%s): %s", np->nick, np->authname, ourflags, ournoticeflags, diff);
 307
 308             strlcpy(finalflags, printflags(NOGetNoticeLevel(au), no_noticeflags), sizeof(finalflags));
 309             for(;nl;nl=nl->next)
 310               if(nl->nick != np) {
 311                 controlreply(nl->nick, "!!! %s just used NOTICEFLAGS (%s): %s", np->nick, ournoticeflags, diff);
 312                 controlreply(nl->nick, "Your notice flags are %s", finalflags);
 313               }
 314           }
 315         }
 316       } else {
 317         controlreply(np, "Unknown flag(s) supplied.");
 318         return CMD_ERROR;
 319       }
 320     } else {
 321       int typefound;
 322       char *itemfound;
 323       au = noperserv_autheduser_from_command(np, cargv[0], &typefound, &itemfound);
 324       if(!au)
 325         return CMD_ERROR;
 326
 327       if(au != NOGetAuthedUser(np)) {
 328         controlreply(np, "Notice flags for %s %s are: %s", typefound==NO_FOUND_NICKNAME?"user":"authname", itemfound, printflags(NOGetNoticeLevel(au), no_noticeflags));
 329         return CMD_OK;
 330       }
 331     }
 332   } else {
 333     au = NOGetAuthedUser(np);
 334   }
 335
 336   if(!au) /* shouldn't happen */
 337     return CMD_ERROR;
 338
 339   controlreply(np, "Your notice flags are: %s", printflags(NOGetNoticeLevel(au), no_noticeflags));
 340
 341   return CMD_OK;
 342 }
 343
 344 /* @test */
 345 int noperserv_deluser(void *sender, int cargc, char **cargv) {
 346   nick *np = (nick *)sender;
 347   no_autheduser *target /* target user */, *au = NOGetAuthedUser(np); /* user executing command */
 348   char *userreturned = NULL; /* nickname or authname of the target, pulled from the db */
 349   int typefound; /* whether it was an authname or a username */
 350   no_nicklist *nl;
 351   char targetflags[FLAGBUFLEN], ourflags[FLAGBUFLEN], deleteduser[NOMax(ACCOUNTLEN, NICKLEN) + 1];
 352
 353   if(cargc != 1)
 354     return CMD_USAGE;
 355
 356   target = noperserv_autheduser_from_command(np, cargv[0], &typefound, &userreturned);
 357   if(!target)
 358     return CMD_ERROR;
 359
 360   strlcpy(targetflags, printflags(NOGetAuthLevel(target), no_userflags), sizeof(targetflags));
 361   strlcpy(ourflags, printflags(NOGetAuthLevel(au), no_userflags), sizeof(ourflags));
 362
 363   /* we have to copy it as it might point to an autheduser, which we're about to delete */
 364   strlcpy(deleteduser, userreturned, sizeof(deleteduser));
 365
 366   /* we have to check if target != au, because if successful policy_modification_permitted just returns the flags we're allowed
 367      to modify, if we have no flags we won't be able to delete ourselves */
 368   if((target != au) && !noperserv_policy_permitted_modifications(au, target)) {
 369     controlreply(np, "Deletion denied.");
 370     controlwall(NO_OPER, NL_MANAGEMENT, "%s/%s (%s) attempted to DELUSER %s (%s)", np->nick, np->authname, ourflags, target->authname->content, targetflags);
 371
 372     return CMD_ERROR;
 373   }
 374
 375   for(nl=target->nick;nl;nl=nl->next)
 376     if(nl->nick != np)
 377       controlreply(nl->nick, "!!! %s/%s (%s) just DELUSERed you.", np->nick, np->authname, ourflags);
 378
 379   noperserv_delete_autheduser(target);
 380
 381   controlwall(NO_OPER, NL_MANAGEMENT, "%s/%s (%s) successfully used DELUSER on %s (%s)", np->nick, np->authname, ourflags, target->authname->content, targetflags);
 382
 383   if(target == au) {
 384     controlreply(np, "You have been deleted.");
 385   } else {
 386     controlreply(np, "%s %s deleted.", typefound==NO_FOUND_AUTHNAME?"Auth":"User", deleteduser);
 387   }
 388
 389   return CMD_OK;
 390 }
 391
 392 /* @test */
 393 /* this command needs LOTS of checking */
 394 int noperserv_userflags(void *sender, int cargc, char **cargv) {
 395   nick *np = (nick *)sender;
 396   no_autheduser *au = NOGetAuthedUser(np), *target = NULL;
 397   char *flags = NULL, *nicktarget = NULL;
 398   int typefound;
 399
 400   if(cargc == 0) {
 401     target = au;
 402   } else if(cargc == 1) {
 403     if((cargv[0][0] == '+') || (cargv[0][0] == '-')) { /* modify our own */
 404       flags = cargv[0];
 405       target = au;
 406     } else { /* viewing someone elses */
 407       nicktarget = cargv[0];
 408     }
 409   } else if(cargc == 2) {
 410     nicktarget = cargv[0];
 411     flags = cargv[1];
 412   } else {
 413     return CMD_USAGE;
 414   }
 415
 416   if(nicktarget) {
 417     target = noperserv_autheduser_from_command(np, nicktarget, &typefound, &nicktarget);
 418     if(!target)
 419       return CMD_ERROR;
 420   }
 421
 422   if(flags) {
 423     int ret;
 424     flag_t permitted = noperserv_policy_permitted_modifications(au, target), fwas = NOGetAuthLevel(target), fours = NOGetAuthLevel(au);
 425
 426     ret = setflags(&target->authlevel, permitted, flags, no_userflags, REJECT_DISALLOWED | REJECT_UNKNOWN);
 427     if(ret != REJECT_UNKNOWN) {
 428       if(ret == REJECT_DISALLOWED) {
 429         flag_t fnow = fwas;
 430         setflags(&fnow, NO_ALL_FLAGS, flags, no_userflags, REJECT_NONE);
 431         if(fnow == fwas) {
 432           controlreply(np, "No changes made to existing flags.");
 433         } else {
 434           char targetflags[FLAGBUFLEN], ourflags[FLAGBUFLEN];
 435           controlreply(np, "Flag alterations denied.");
 436
 437           strlcpy(targetflags, printflags(fwas, no_userflags), sizeof(targetflags));
 438           strlcpy(ourflags, printflags(fours, no_userflags), sizeof(ourflags));
 439
 440           controlwall(NO_OPER, NL_MANAGEMENT, "%s/%s (%s) attempted to use USERFLAGS on %s (%s): %s", np->nick, np->authname, ourflags, target->authname->content, targetflags, printflagdiff(fwas, fnow, no_userflags));
 441           return CMD_ERROR;
 442         }
 443       } else if(ret == REJECT_NONE) {
 444         if(NOGetAuthLevel(target) == fwas) {
 445           controlreply(np, "No changes made to existing flags.");
 446         } else {
 447           char targetflags[FLAGBUFLEN], ourflags[FLAGBUFLEN], finalflags[FLAGBUFLEN];
 448           no_nicklist *nl = target->nick;
 449
 450           noperserv_policy_update_noticeflags(fwas, target);
 451           noperserv_update_autheduser(target);
 452
 453           controlreply(np, "Flag alterations complete.");
 454
 455           strlcpy(targetflags, printflags(fwas, no_userflags), sizeof(targetflags));
 456           strlcpy(ourflags, printflags(fours, no_userflags), sizeof(ourflags));
 457
 458           controlwall(NO_OPER, NL_MANAGEMENT, "%s/%s (%s) successfully used USERFLAGS on %s (%s): %s", np->nick, np->authname, ourflags, target->authname->content, targetflags, printflagdiff(fwas, NOGetAuthLevel(target), no_userflags));
 459
 460           strlcpy(finalflags, printflags(NOGetAuthLevel(target), no_userflags), sizeof(finalflags));
 461           for(;nl;nl=nl->next)
 462             if(nl->nick != np) {
 463               controlreply(nl->nick, "!!! %s/%s (%s) just used USERFLAGS on you (%s): %s", np->nick, np->authname, ourflags, targetflags, printflagdiff(fwas, NOGetAuthLevel(target), no_userflags));
 464               controlreply(nl->nick, "Your user flags are now: %s", finalflags);
 465               controlreply(nl->nick, "Your notice flags are now: %s", printflags(target->noticelevel, no_noticeflags));
 466             }
 467         }
 468       }
 469     } else {
 470       controlreply(np, "Unknown flag(s) supplied.");
 471       return CMD_ERROR;
 472     }
 473   }
 474
 475   if(target != au) {
 476     controlreply(np, "User flags for %s %s: %s", typefound==NO_FOUND_AUTHNAME?"auth":"user", nicktarget, printflags(NOGetAuthLevel(target), no_userflags));
 477     controlreply(np, "Notice flags for %s %s: %s", typefound==NO_FOUND_AUTHNAME?"auth":"user", nicktarget, printflags(target->noticelevel, no_noticeflags));
 478   } else {
 479     controlreply(np, "Your user flags are: %s", printflags(NOGetAuthLevel(target), no_userflags));
 480     controlreply(np, "Your notice flags are: %s", printflags(target->noticelevel, no_noticeflags));
 481   }
 482
 483   return CMD_OK;
 484 }
 485
 486 void noperserv_oper_detection(int hooknum, void *arg) {
 487   nick *np = (nick *)arg;
 488
 489   if(np->umodes & UMODE_OPER) {
 490     if(np->opername && strcmp(np->opername->content, "-")) {
 491       controlwall(NO_OPER, NL_OPERING, "%s!%s@%s%s%s just OPERed as %s", np->nick, np->ident, np->host->name->content, IsAccount(np)?"/":"", IsAccount(np)?np->authname:"", np->opername->content);
 492     } else {
 493       controlwall(NO_OPER, NL_OPERING, "%s!%s@%s%s%s just OPERed", np->nick, np->ident, np->host->name->content, IsAccount(np)?"/":"", IsAccount(np)?np->authname:"");
 494     }
 495   } else {
 496     controlwall(NO_OPER, NL_OPERING, "%s!%s@%s%s%s just DEOPERed", np->nick, np->ident, np->host->name->content, IsAccount(np)?"/":"", IsAccount(np)?np->authname:"");
 497   }
 498 }