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