chanserv/chancmds/tempban.c

   1 /* Automatically generated by refactor.pl.
   2  *
   3  *
   4  * CMDNAME: tempban
   5  * CMDLEVEL: QCMD_AUTHED
   6  * CMDARGS: 4
   7  * CMDDESC: Bans a hostmask on a channel for a specified time period.
   8  * CMDFUNC: csc_dotempban
   9  * CMDPROTO: int csc_dotempban(void *source, int cargc, char **cargv);
  10  * CMDHELP: Usage: TEMPBAN <channel> <hostmask> <duration> [<reason>]
  11  * CMDHELP: Temporarily bans the provided hostmask on the channel.  If the ban is
  12  * CMDHELP: removed from the channel e.g. by a channel op or the BANTIMER feature, the
  13  * CMDHELP: ban will be reapplied if a matching user joins the channel.  When the time
  14  * CMDHELP: expires the ban will be removed automatically.  Bans set with the PERMBAN
  15  * CMDHELP: command can be removed via BANCLEAR or BANDEL.  Any users matching the hostmask
  16  * CMDHELP: will be kicked from the channel.
  17  * CMDHELP: Where:
  18  * CMDHELP: channel  - channel to set a ban on
  19  * CMDHELP: hostmask - hostmask (nick!user@host) to ban.
  20  * CMDHELP: duration - length of time to apply the ban for.  Suffixes m (minutes), h (hours),
  21  * CMDHELP:            d (days), w (weeks), M (months) and y (years) can be used to specify
  22  * CMDHELP:            the duration, for example 3d, 5h, 1h30m, 1M.
  23  * CMDHELP: reason   - reason for the ban.  This will be used in kick messages when kicking
  24  * CMDHELP:            users matching the ban.  If this is not provided the generic message
  25  * CMDHELP:            \"Banned.\" will be used.
  26  * CMDHELP: TEMPBAN requires master (+m) access on the named channel.
  27  */
  28
  29 #include "../chanserv.h"
  30 #include "../../nick/nick.h"
  31 #include "../../lib/flags.h"
  32 #include "../../lib/irc_string.h"
  33 #include "../../channel/channel.h"
  34 #include "../../parser/parser.h"
  35 #include "../../irc/irc.h"
  36 #include "../../localuser/localuserchannel.h"
  37 #include <string.h>
  38 #include <stdio.h>
  39
  40 int csc_dotempban(void *source, int cargc, char **cargv) {
  41   nick *sender=source;
  42   chanindex *cip;
  43   regban *rbp, *toreplace = NULL;
  44   regchan *rcp;
  45   reguser *rup=getreguserfromnick(sender);
  46   unsigned int duration;
  47   struct chanban *b;
  48   char banbuf[1024];
  49   unsigned int count = 0;
  50
  51   if (cargc<3) {
  52     chanservstdmessage(sender, QM_NOTENOUGHPARAMS, "tempban");
  53     return CMD_ERROR;
  54   }
  55
  56   if (!(cip=cs_checkaccess(sender, cargv[0], CA_MASTERPRIV, NULL, "tempban",0, 0)))
  57     return CMD_ERROR;
  58
  59   rcp=cip->exts[chanservext];
  60
  61   duration=durationtolong(cargv[2]);
  62   if (duration > 400000000) {
  63     chanservstdmessage(sender, QM_DURATIONTOOLONG, cargv[2]);
  64     return CMD_ERROR;
  65   }
  66   duration+=time(NULL);
  67
  68   /* saves us having to do repeat a LOT more sanity checking *wink* *wink* */
  69   b=makeban(cargv[1]);
  70   snprintf(banbuf,sizeof(banbuf),"%s",bantostring(b));
  71   freechanban(b);
  72   b=makeban(banbuf);
  73
  74   for(rbp=rcp->bans;rbp;rbp=rbp->next) {
  75     count++;
  76     if(banequal(b,rbp->cbp)) {
  77       if(rbp->expiry && (duration > rbp->expiry)) {
  78         if(toreplace) { /* shouldn't happen */
  79           chanservsendmessage(sender, "Internal error, duplicate bans found on banlist.");
  80         } else {
  81           toreplace=rbp;
  82           continue;
  83         }
  84       } else {
  85         chanservstdmessage(sender, QM_NOTREPLACINGBANLDURATION);
  86       }
  87     } else if(banoverlap(rbp->cbp,b)) {
  88       chanservstdmessage(sender, QM_NEWBANALREADYBANNED, bantostring(rbp->cbp));
  89     } else if(banoverlap(b,rbp->cbp)) {
  90       chanservstdmessage(sender, QM_NEWBANOVERLAPS, bantostring(rbp->cbp), banbuf);
  91     } else {
  92       continue;
  93     }
  94
  95     freechanban(b);
  96     return CMD_ERROR;
  97   }
  98
  99   if(count >= MAXBANS) {
 100     freechanban(b);
 101     chanservstdmessage(sender, QM_TOOMANYBANS);
 102     return CMD_ERROR;
 103   }
 104
 105   if(toreplace) {
 106     freechanban(b);
 107     chanservstdmessage(sender, QM_REPLACINGBANSDURATION);
 108     rbp=toreplace;
 109     if(rbp->reason)
 110       freesstring(toreplace->reason);
 111   } else {
 112     rbp=getregban();
 113     rbp->ID=++lastbanID;
 114     rbp->cbp=b;
 115
 116     rbp->next=rcp->bans;
 117     rcp->bans=rbp;
 118   }
 119
 120   rbp->setby=rup->ID;
 121   rbp->expiry=duration;
 122   if (cargc>3)
 123     rbp->reason=getsstring(cargv[3],200);
 124   else
 125     rbp->reason=NULL;
 126
 127   cs_setregban(cip, rbp);
 128   if(toreplace) {
 129     csdb_updateban(rcp, rbp);
 130   } else {
 131     csdb_createban(rcp, rbp);
 132   }
 133
 134   chanservstdmessage(sender, QM_DONE);
 135   return CMD_OK;
 136 }