chanserv/chancmds/chanlev.c

   1 /* Automatically generated by refactor.pl.
   2  *
   3  *
   4  * CMDNAME: chanlev
   5  * CMDLEVEL: QCMD_AUTHED
   6  * CMDARGS: 3
   7  * CMDDESC: Shows or modifies user access on a channel.
   8  * CMDFUNC: csc_dochanlev
   9  * CMDPROTO: int csc_dochanlev(void *source, int cargc, char **cargv);
  10  * CMDHELP: Usage: CHANLEV <channel> [<user> [<change>]]
  11  * CMDHELP: Displays or alters the access of known users on a channel, where:
  12  * CMDHELP: channel - the channel to use
  13  * CMDHELP: user    - the user to list or modify.  user can be specified as either an active
  14  * CMDHELP:           nickname on the network or #accountname.  If user is not specified then
  15  * CMDHELP:           all known users are listed.
  16  * CMDHELP: change  - lists the flags to add or remove, with + to add or - to remove.  For
  17  * CMDHELP:           example, +ao to add a and o flags, or -gv to remove g and v flags.  This
  18  * CMDHELP:           can be used to add or remove users from the channel.  If change is not
  19  * CMDHELP:           specified then the current access of the named user is displayed.
  20  * CMDHELP: Displaying known user information requires you to be known (+k) on the named channel.
  21  * CMDHELP: Adjusting flags for other users requires master (+m) access on the named channel.
  22  * CMDHELP: Adding or removing the +m flag for other users requires owner (+n) access on the
  23  * CMDHELP:  named channel.
  24  * CMDHELP: You may always remove your own flags, except +qdb flags (which are not visible to you).
  25  * CMDHELP: Adding or removing personal flags requires you to be known (+k) on the named channel.
  26  * CMDHELP: Note that channel owners (+n) can grant +n to channel masters but they must use
  27  * CMDHELP: the GIVEOWNER command for this.
  28  * CMDHELP: The access level flags determine which commands a user is allowed to use on a channel.
  29  * CMDHELP: Holding an access flag also grants access to any action requiring a lesser flag (e.g.
  30  * CMDHELP: +m users can perform actions requiring operator (+o) status even if they do not
  31  * CMDHELP: actually have +o set).  The access flags are listed in descending order.
  32  * CMDHELP: Valid flags are:
  33  * CMDHELP: Access level flags - these control the user's overall privilege level on the channel:
  34  * CMDHELP:  +n OWNER     Can add or remove masters and all other flags (except personal flags)
  35  * CMDHELP:  +m MASTER    Can add or remove all access except master or owner
  36  * CMDHELP:  +o OP        Can get ops on the channel
  37  * CMDHELP:  +v VOICE     Can get voice on the channel
  38  * CMDHELP:  +k KNOWN     Known on the channel - can get invites to the channel via INVITE
  39  * CMDHELP: Punishment flags - these restrict the user on the channel in some way:
  40  * CMDHELP:  +q DEVOICE   Not allowed to be voiced on the channel
  41  * CMDHELP:  +d DEOP      Not allowed to be opped on the channel
  42  * CMDHELP:  +b BANNED    Banned from the channel
  43  * CMDHELP: Extra flags - these control specific behaviour on the channel:
  44  * CMDHELP:  +a AUTOOP    Ops the user automatically when they join the channel (the user
  45  * CMDHELP:               must also hold +o in order to have this flag)
  46  * CMDHELP:  +g AUTOVOICE Voices the user automatically when they join the channel (the
  47  * CMDHELP:               user must also hold +v in order to have this flag)
  48  * CMDHELP:  +p PROTECT   If the user has +o or +v, this makes sure they will always have
  49  * CMDHELP:               that status, they will be reopped/voiced if deopped/voiced
  50  * CMDHELP:  +t TOPIC     Can use SETTOPIC to alter the topic on the channel
  51  * CMDHELP: Personal flags - these control user personal preferences and can only be changed
  52  * CMDHELP:                  by the user concerned.  They are not visible to other users.
  53  * CMDHELP:  +w NOWELCOME Prevents the welcome message being sent when you join the channel.
  54  * CMDHELP:  +j AUTOINV   Invites you to the channel automatically when you authenticate.
  55  * CMDHELP: Note that non-sensible combinations of flags are not allowed.  After making a
  56  * CMDHELP: change the current status of the named user on the channel will be confirmed.
  57  */
  58
  59 #include "../chanserv.h"
  60 #include "../../nick/nick.h"
  61 #include "../../lib/flags.h"
  62 #include "../../lib/irc_string.h"
  63 #include "../../channel/channel.h"
  64 #include "../../parser/parser.h"
  65 #include "../../irc/irc.h"
  66 #include "../../localuser/localuserchannel.h"
  67 #include <string.h>
  68 #include <stdio.h>
  69
  70 int compareflags(const void *u1, const void *u2) {
  71   const regchanuser *r1=*(void **)u1, *r2=*(void **)u2;
  72   flag_t f1,f2;
  73
  74   for (f1=QCUFLAG_OWNER;f1;f1>>=1)
  75     if (r1->flags & f1)
  76       break;
  77
  78   for (f2=QCUFLAG_OWNER;f2;f2>>=1)
  79     if (r2->flags & f2)
  80       break;
  81
  82   if (f1==f2) {
  83     return ircd_strcmp(r1->user->username, r2->user->username);
  84   } else {
  85     return f2-f1;
  86   }
  87 }
  88
  89 int csc_dochanlev(void *source, int cargc, char **cargv) {
  90   nick *sender=source;
  91   chanindex *cip;
  92   regchan *rcp;
  93   regchanuser *rcup, *trcup, *rcuplist;
  94   regchanuser **rusers;
  95   reguser *rup=getreguserfromnick(sender), *target;
  96   char time1[TIMELEN],time2[TIMELEN];
  97   char flagbuf[30];
  98   flag_t flagmask, changemask, flags, oldflags;
  99   int showtimes=0;
 100   int donehead=0;
 101   int i,j;
 102   int newuser=0;
 103   int usercount;
 104   void *args[3];
 105
 106   if (cargc<1) {
 107     chanservstdmessage(sender, QM_NOTENOUGHPARAMS, "chanlev");
 108     return CMD_ERROR;
 109   }
 110
 111   if (!(cip=cs_checkaccess(sender, cargv[0], CA_KNOWN,
 112                            NULL, "chanlev", QPRIV_VIEWFULLCHANLEV, 0)))
 113     return CMD_ERROR;
 114
 115   rcp=cip->exts[chanservext];
 116   rcup=findreguseronchannel(rcp, rup);
 117
 118   /* Set flagmask for +v/+o users (can't see bans etc.) */
 119   flagmask = (QCUFLAG_OWNER | QCUFLAG_MASTER | QCUFLAG_OP | QCUFLAG_VOICE | QCUFLAG_AUTOVOICE |
 120               QCUFLAG_AUTOOP | QCUFLAG_TOPIC | QCUFLAG_PROTECT | QCUFLAG_KNOWN);
 121
 122   /* masters and above can see everything except personal flags */
 123   if (rcup && CUHasMasterPriv(rcup)) {
 124     flagmask = QCUFLAG_ALL & ~QCUFLAGS_PERSONAL;
 125     showtimes=1;
 126   }
 127
 128   /* Staff access, show everything */
 129   if (cs_privcheck(QPRIV_VIEWFULLCHANLEV, sender)) {
 130     flagmask = QCUFLAG_ALL;
 131     showtimes=1;
 132   }
 133
 134   if (cargc==1) {
 135     /* One arg: list chanlev */
 136     int ncnt=0,mcnt=0,ocnt=0,vcnt=0,kcnt=0,bcnt=0;
 137
 138     if (cs_privcheck(QPRIV_VIEWFULLCHANLEV, sender)) {
 139       reguser *founder=NULL, *addedby=NULL;
 140       addedby=findreguserbyID(rcp->addedby);
 141       chanservstdmessage(sender, QM_ADDEDBY, addedby ? addedby->username : "(unknown)");
 142       founder=findreguserbyID(rcp->founder);
 143       chanservstdmessage(sender, QM_FOUNDER, founder ? founder->username : "(unknown)");
 144       if (rcp->chantype) {
 145         chanservstdmessage(sender, QM_CHANTYPE, chantypes[rcp->chantype]->content);
 146       }
 147     }
 148
 149     if (CIsSuspended(rcp) && cs_privcheck(QPRIV_VIEWCHANSUSPENSION, sender)) {
 150       char *bywhom;
 151
 152       if(cs_privcheck(QPRIV_VIEWSUSPENDEDBY, sender)) {
 153         reguser *trup = findreguserbyID(rcp->suspendby);
 154         if(trup) {
 155           bywhom = trup->username;
 156         } else {
 157          bywhom = "(unknown)";
 158         }
 159       } else {
 160         bywhom = "(hidden)";
 161       }
 162
 163       chanservstdmessage(sender, QM_CHANLEV_SUSPENDREASON, rcp->suspendreason?rcp->suspendreason->content:"(no reason)");
 164       chanservstdmessage(sender, QM_CHANLEV_SUSPENDBY, bywhom);
 165       chanservstdmessage(sender, QM_CHANLEV_SUSPENDSINCE, rcp->suspendtime);
 166     }
 167
 168     if (rcp->comment && (cs_privcheck(QPRIV_VIEWCOMMENTS, sender)))
 169       chanservstdmessage(sender, QM_SHORT_COMMENT, rcp->comment->content);
 170
 171     /* Count users */
 172     for (i=0,usercount=0;i<REGCHANUSERHASHSIZE;i++)
 173       for (rcuplist=rcp->regusers[i];rcuplist;rcuplist=rcuplist->nextbychan)
 174         usercount++;
 175
 176     /* Allocate array */
 177     rusers=(regchanuser **)malloc(usercount * sizeof(regchanuser *));
 178
 179     /* Fill array */
 180     for (j=i=0;i<REGCHANUSERHASHSIZE;i++) {
 181       for (rcuplist=rcp->regusers[i];rcuplist;rcuplist=rcuplist->nextbychan) {
 182         if (!(flags=rcuplist->flags & flagmask))
 183           continue;
 184
 185         rusers[j++]=rcuplist;
 186       }
 187     }
 188
 189     /* Sort */
 190     qsort(rusers, j, sizeof(regchanuser *), compareflags);
 191
 192     /* List */
 193     for (i=0;i<j;i++) {
 194       rcuplist=rusers[i];
 195
 196       if (!(flags=rcuplist->flags & flagmask))
 197         continue;
 198
 199       /* If you're listing yourself, we should show personal flags too */
 200       if (rcuplist==rcup) {
 201         flags=rcuplist->flags & (flagmask | QCUFLAGS_PERSONAL);
 202       }
 203
 204       /* Do the count here; note that +n's aren't counted as +m (and so on).  We're not
 205        * using the IsX() macros because the displayed count needs to match up with
 206        * the displayed flags... */
 207       if (flags & QCUFLAG_OWNER) ncnt++; else
 208       if (flags & QCUFLAG_MASTER) mcnt++; else
 209       if (flags & QCUFLAG_OP) ocnt++; else
 210       if (flags & QCUFLAG_VOICE) vcnt++; else
 211       if (flags & QCUFLAG_KNOWN) kcnt++;
 212       if (flags & QCUFLAG_BANNED) bcnt++;
 213
 214       if (!donehead) {
 215         chanservstdmessage(sender, QM_CHANLEVHEADER, cip->name->content);
 216         if (showtimes)
 217           chanservstdmessage(sender, QM_CHANLEVCOLFULL);
 218         else
 219           chanservstdmessage(sender, QM_CHANLEVCOLSHORT);
 220         donehead=1;
 221       }
 222
 223       if (showtimes) {
 224         if (!rcuplist->usetime) {
 225           strcpy(time1,"Never");
 226         } else {
 227           q9strftime(time1,sizeof(time1),rcuplist->usetime);
 228         }
 229         if (!rcuplist->changetime) {
 230           strcpy(time2, "Unknown");
 231         } else {
 232           q9strftime(time2,sizeof(time2),rcuplist->changetime);
 233         }
 234         chanservsendmessage(sender, " %-15s %-13s %-14s  %-14s  %s", rcuplist->user->username,
 235                             printflags(flags, rcuflags), time1, time2, rcuplist->info?rcuplist->info->content:"");
 236       } else
 237         chanservsendmessage(sender, " %-15s %s", rcuplist->user->username, printflags(flags, rcuflags));
 238     }
 239
 240     if (donehead) {
 241       chanservstdmessage(sender, QM_ENDOFLIST);
 242       chanservstdmessage(sender, QM_CHANLEVSUMMARY, j, ncnt, mcnt, ocnt, vcnt, kcnt, bcnt);
 243     } else {
 244       chanservstdmessage(sender, QM_NOUSERSONCHANLEV, cip->name->content);
 245     }
 246
 247     triggerhook(HOOK_CHANSERV_CHANLEVDUMP, sender);
 248
 249     free(rusers);
 250   } else {
 251     /* 2 or more args.. relates to one specific user */
 252     if (!(target=findreguser(sender, cargv[1])))
 253       return CMD_ERROR; /* If there was an error, findreguser will have sent a message saying why.. */
 254
 255     rcuplist=findreguseronchannel(rcp, target);
 256
 257     if (cargc>2) {
 258       /* To change chanlev you have to either.. */
 259       if (!( cs_privcheck(QPRIV_CHANGECHANLEV, sender) ||             /* Have override privilege */
 260              (rcup && rcuplist && (rcup==rcuplist) && CUKnown(rcup)) || /* Be manipulting yourself (oo er..) */
 261              (rcup && CUHasMasterPriv(rcup) &&                        /* Have +m or +n on the channel */
 262               !(rcuplist && CUIsOwner(rcuplist) && !CUIsOwner(rcup))) /* masters can't screw with owners */
 263              )) {
 264         chanservstdmessage(sender, QM_NOACCESSONCHAN, cip->name->content, "chanlev");
 265         return CMD_ERROR;
 266       }
 267
 268       if (!rcuplist) {
 269         /* new user, we could store a count instead... that's probably better... */
 270         unsigned int chanlevcount, channelcount;
 271
 272         for (chanlevcount=i=0;i<REGCHANUSERHASHSIZE;i++)
 273           for (rcuplist=rcp->regusers[i];rcuplist;rcuplist=rcuplist->nextbychan)
 274             chanlevcount++;
 275
 276         if(chanlevcount >= MAXCHANLEVS) {
 277           chanservstdmessage(sender, QM_TOOMANYCHANLEVS);
 278           return CMD_ERROR;
 279         }
 280
 281         channelcount=0;
 282         for (trcup=target->knownon;trcup;trcup=trcup->nextbyuser)
 283           channelcount++;
 284
 285         if(channelcount >= MAXCHANNELS) {
 286           chanservstdmessage(sender, QM_TOOMANYCHANNELS);
 287           return CMD_ERROR;
 288         }
 289
 290         rcuplist=getregchanuser();
 291         rcuplist->user=target;
 292         rcuplist->chan=rcp;
 293         rcuplist->flags=0;
 294         rcuplist->changetime=time(NULL);
 295         rcuplist->usetime=0;
 296         rcuplist->info=NULL;
 297         newuser=1;
 298       }
 299
 300       if (cs_privcheck(QPRIV_CHANGECHANLEV, sender)) {
 301         /* Opers are allowed to change everything */
 302         changemask = QCUFLAG_ALL;
 303       } else {
 304         changemask=0;
 305
 306         /* Everyone can change their own flags (except +dqb), and control (and see) personal flags */
 307         if (rcup==rcuplist) {
 308           changemask = (rcup->flags | QCUFLAGS_PERSONAL) & ~(QCUFLAGS_PUNISH);
 309           flagmask |= QCUFLAGS_PERSONAL;
 310         }
 311
 312         /* Masters are allowed to manipulate +ovagtbqdpk */
 313         if (CUHasMasterPriv(rcup))
 314           changemask |= ( QCUFLAG_KNOWN | QCUFLAG_OP | QCUFLAG_VOICE | QCUFLAG_AUTOOP | QCUFLAG_AUTOVOICE |
 315                           QCUFLAG_TOPIC | QCUFLAG_PROTECT | QCUFLAGS_PUNISH);
 316
 317         /* Owners are allowed to manipulate +ms as well.
 318          * We allow +n to be given initially, but we check later to see if the flag has been added.
 319          * if it has, abort and say "use giveowner"
 320          */
 321         if (CUIsOwner(rcup))
 322           changemask |= ( QCUFLAG_MASTER | QCUFLAG_OWNER );
 323       }
 324
 325       oldflags=rcuplist->flags;
 326       if (setflags(&(rcuplist->flags), changemask, cargv[2], rcuflags, REJECT_UNKNOWN | REJECT_DISALLOWED)) {
 327         chanservstdmessage(sender, QM_INVALIDCHANLEVCHANGE);
 328         if (newuser)
 329           freeregchanuser(rcuplist);
 330         return CMD_ERROR;
 331       }
 332
 333       /* check to see if +n has been given.  Opers can bypass this. */
 334       if (!cs_privcheck(QPRIV_CHANGECHANLEV, sender) && !(oldflags & QCUFLAG_OWNER) && (rcuplist->flags & QCUFLAG_OWNER)) {
 335         rcuplist->flags=oldflags;
 336         chanservstdmessage(sender, QM_USEGIVEOWNER);
 337         if (newuser)
 338           freeregchanuser(rcuplist);
 339         return CMD_ERROR;
 340       }
 341
 342       /* Fix up impossible combinations */
 343       rcuplist->flags = cs_sanitisechanlev(rcuplist->flags);
 344
 345       /* Check if anything "significant" has changed */
 346       if ((oldflags ^ rcuplist->flags) & (QCUFLAG_OWNER | QCUFLAG_MASTER | QCUFLAG_OP))
 347         rcuplist->changetime=time(NULL);
 348
 349       if(rcuplist->flags == oldflags) {
 350         chanservstdmessage(sender, QM_CHANLEVNOCHANGE);
 351         if (newuser)
 352           freeregchanuser(rcuplist);
 353         return CMD_OK;
 354       }
 355
 356       strcpy(flagbuf,printflags(oldflags,rcuflags));
 357       cs_log(sender,"CHANLEV %s #%s %s (%s -> %s)",cip->name->content,rcuplist->user->username,cargv[2],
 358              flagbuf,printflags(rcuplist->flags,rcuflags));
 359       csdb_chanlevhistory_insert(rcp, sender, rcuplist->user, oldflags, rcuplist->flags);
 360
 361       /* The user has to be on the relevant chanlev list before we trigger the hook.
 362        * So that enlisting has been hoisted to here. */
 363       if (newuser && rcuplist->flags) {
 364         addregusertochannel(rcuplist);
 365       }
 366
 367       args[0]=sender;
 368       args[1]=rcuplist;
 369       args[2]=(void *)oldflags;
 370
 371       triggerhook(HOOK_CHANSERV_CHANLEVMOD, args);
 372
 373       /* Now see what we do next */
 374       if (rcuplist->flags) {
 375         /* User still valid: update or create */
 376         if (newuser) {
 377           csdb_createchanuser(rcuplist);
 378         } else {
 379           csdb_updatechanuser(rcuplist);
 380         }
 381         chanservstdmessage(sender, QM_CHANLEVCHANGED, cargv[1], cip->name->content,
 382                            printflags(rcuplist->flags & flagmask, rcuflags));
 383       } else {
 384         /* User has no flags: delete */
 385         if (!newuser) {
 386           chanservstdmessage(sender, QM_CHANLEVREMOVED, cargv[1], cip->name->content);
 387           csdb_deletechanuser(rcuplist);
 388           delreguserfromchannel(rcp, target);
 389         }
 390         freeregchanuser(rcuplist);
 391         rcuplist=NULL;
 392         if (cs_removechannelifempty(sender, rcp)) {
 393           chanservstdmessage(sender, QM_CHANLEVEMPTIEDCHANNEL);
 394           return CMD_OK;
 395         }
 396       }
 397
 398       /* Update the channel if needed */
 399       rcp->status |= QCSTAT_OPCHECK;
 400       cs_timerfunc(cip);
 401     } else {
 402       if (rcuplist == rcup)
 403         flagmask |= QCUFLAGS_PERSONAL;
 404       if (rcuplist && (rcuplist->flags & flagmask)) {
 405         chanservstdmessage(sender, QM_CHANUSERFLAGS, cargv[1], cip->name->content,
 406                            printflags(rcuplist->flags & flagmask, rcuflags));
 407       } else {
 408         chanservstdmessage(sender, QM_CHANUSERUNKNOWN, cargv[1], cip->name->content);
 409       }
 410     }
 411   }
 412
 413
 414   return CMD_OK;
 415 }