chanserv/chancmds/giveowner.c

   1 /*
   2  * CMDNAME: giveowner
   3  * CMDLEVEL: QCMD_AUTHED
   4  * CMDARGS: 3
   5  * CMDDESC: Gives total control over a channel to another user.
   6  * CMDFUNC: csc_dogiveowner
   7  * CMDPROTO: int csc_dogiveowner(void *source, int cargc, char **cargv);
   8  * CMDHELP: Usage: GIVEOWNER <channel> <user> [<code>]
   9  * CMDHELP: Gives complete control (+n flag) to the named user on the channel.  The new owner
  10  * CMDHELP: will have full control over the channel, including the ability to remove the
  11  * CMDHELP: existing owner(s).  As a precaution the named user must already have master (+m)
  12  * CMDHELP: access on the channel.  Use this command with extreme caution.  Where:
  13  * CMDHELP: channel - channel to use
  14  * CMDHELP: user    - user to give owner to, either a nickname on the network or #accountname.
  15  * CMDHELP: code    - a unique code used to authorize the operation.  If the code is not
  16  * CMDHELP:           supplied, the appropriate code will be provided together with a
  17  * CMDHELP:           warning about the dangers of this command.  If the wrong code is
  18  * CMDHELP:           entered owner access will not be granted.
  19  * CMDHELP: GIVEOWNER requires owner (+n) access on the named channel.
  20  */
  21
  22 #include "../chanserv.h"
  23 #include "../../nick/nick.h"
  24 #include "../../lib/flags.h"
  25 #include "../../lib/irc_string.h"
  26 #include "../../channel/channel.h"
  27 #include "../../parser/parser.h"
  28 #include "../../irc/irc.h"
  29 #include "../../localuser/localuserchannel.h"
  30 #include <string.h>
  31 #include <stdio.h>
  32
  33 int csc_dogiveowner(void *source, int cargc, char **cargv) {
  34   nick *sender=source;
  35   chanindex *cip;
  36   regchan *rcp;
  37   regchanuser *rcup;
  38   reguser *rup=getreguserfromnick(sender), *target;
  39   char flagbuf[30];
  40   flag_t oldflags;
  41   unsigned int thehash;
  42   char hashstr[100];
  43
  44   if (cargc<2) {
  45     chanservstdmessage(sender, QM_NOTENOUGHPARAMS, "giveowner");
  46     return CMD_ERROR;
  47   }
  48
  49   /* You need to either be +n or have the relevant override... */
  50   if (!(cip=cs_checkaccess(sender, cargv[0], CA_OWNERPRIV,
  51                            NULL, "giveowner", QPRIV_CHANGECHANLEV, 0)))
  52     return CMD_ERROR;
  53
  54   rcp=cip->exts[chanservext];
  55
  56   if (!(target=findreguser(sender, cargv[1])))
  57     return CMD_ERROR; /* If there was an error, findreguser will have sent a message saying why.. */
  58
  59   rcup=findreguseronchannel(rcp, target);
  60
  61   /* Can't promote if already owner */
  62   if (rcup->flags & QCUFLAG_OWNER) {
  63     chanservstdmessage(sender,QM_GIVEOWNERALREADYOWNER,target->username,cip->name->content);
  64     return CMD_ERROR;
  65   }
  66
  67   /* You can only promote a master */
  68   if (!rcup || !(rcup->flags & QCUFLAG_MASTER)) {
  69     chanservstdmessage(sender,QM_GIVEOWNERNOTMASTER,target->username,cip->name->content);
  70     return CMD_ERROR;
  71   }
  72
  73   /* Compute ze hash */
  74   sprintf(hashstr,"%u.%u.%u",rcp->ID,target->ID,rup->ID);
  75   thehash=crc32(hashstr);
  76
  77   sprintf(hashstr,"%x",thehash);
  78
  79   if (cargc<3) {
  80     chanservstdmessage(sender,QM_GIVEOWNERNEEDHASH,cip->name->content,target->username,
  81                             cip->name->content,target->username,hashstr);
  82     return CMD_OK;
  83   }
  84
  85   if (ircd_strcmp(cargv[2], hashstr)) {
  86     chanservstdmessage(sender,QM_GIVEOWNERWRONGHASH,target->username,
  87                             cip->name->content);
  88     return CMD_ERROR;
  89   }
  90
  91   /* OK, hash matches, do it. */
  92   oldflags = rcup->flags;
  93   rcup->flags |= QCUFLAG_OWNER;
  94
  95   chanservstdmessage(sender,QM_DONE);
  96
  97   strcpy(flagbuf,printflags(oldflags,rcuflags));
  98   cs_log(sender,"GIVEOWNER %s #%s (%s -> %s)",cip->name->content,rcup->user->username,
  99              flagbuf,printflags(rcup->flags,rcuflags));
 100
 101   csdb_chanlevhistory_insert(rcp, sender, rcup->user, oldflags, rcup->flags);
 102   csdb_updatechanuser(rcup);
 103
 104   return CMD_OK;
 105 }