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