chanserv/chancmds/users.c

   1 /*
   2  * CMDNAME: users
   3  * CMDLEVEL: QCMD_AUTHED
   4  * CMDARGS: 1
   5  * CMDDESC: Displays a list of users on the channel.
   6  * CMDFUNC: csc_dousers
   7  * CMDPROTO: int csc_dousers(void *source, int cargc, char **cargv);
   8  * CMDHELP: Usage: USERS <channel>
   9  * CMDHELP: Displays a list of users on the named channel along with their usernames and flags
  10  * CMDHELP: on the channel, where:
  11  * CMDHELP: channel - channel to use
  12  * CMDHELP: USERS requires operator (+o) access on the named channel.
  13  */
  14
  15 #include "../chanserv.h"
  16 #include "../../nick/nick.h"
  17 #include "../../lib/flags.h"
  18 #include "../../lib/irc_string.h"
  19 #include "../../channel/channel.h"
  20 #include "../../parser/parser.h"
  21 #include "../../irc/irc.h"
  22 #include "../../localuser/localuserchannel.h"
  23 #include <string.h>
  24 #include <stdio.h>
  25
  26 #define ISQ   0x40000000
  27 #define ISOP  0x20000000
  28 #define ISV   0x10000000
  29
  30 struct chanuserrec {
  31   unsigned int flags; /* Something that sorts nicely */
  32   regchanuser *rcup;
  33   reguser *rup;
  34   nick *np;
  35 };
  36
  37 static int comparetheflags(const void *a, const void *b) {
  38   const struct chanuserrec *ra=a, *rb=b;
  39
  40   return rb->flags-ra->flags;
  41 }
  42
  43 int csc_dousers(void *source, int cargc, char **cargv) {
  44   nick *sender=source, *np;
  45   chanindex *cip;
  46   regchan *rcp;
  47   struct chanuserrec *theusers;
  48   regchanuser *rcup;
  49   channel *cp;
  50   unsigned int i,j;
  51   char *flagbuf, *unbuf, modechar;
  52   char uhbuf[USERLEN+HOSTLEN+2];
  53   flag_t flagmask;
  54   unsigned int ops,voices,users,flags,qops,masters;
  55
  56   if (cargc<1) {
  57     chanservstdmessage(sender, QM_NOTENOUGHPARAMS, "users");
  58     return CMD_ERROR;
  59   }
  60
  61   if (!(cip=cs_checkaccess(sender, cargv[0], CA_OPPRIV,
  62                            NULL, "users", QPRIV_VIEWFULLCHANLEV, 0)))
  63     return CMD_ERROR;
  64
  65   rcp=cip->exts[chanservext];
  66
  67   if (!(cp=cip->channel)) {
  68     chanservstdmessage(sender,QM_EMPTYCHAN,cip->name->content);
  69     return CMD_ERROR;
  70   }
  71
  72   if (!cs_privcheck(QPRIV_VIEWFULLCHANLEV, sender) && !getnumerichandlefromchanhash(cip->channel->users,sender->numeric)) {
  73     chanservstdmessage(sender,QM_NOTONCHAN,cip->name->content);
  74     return CMD_ERROR;
  75   }
  76
  77   theusers=malloc(cp->users->totalusers * sizeof(struct chanuserrec));
  78   memset(theusers,0,cp->users->totalusers * sizeof(struct chanuserrec));
  79
  80   for (i=0,j=0;i<cp->users->hashsize;i++) {
  81     if (cp->users->content[i]==nouser)
  82       continue;
  83
  84     if (!(np=getnickbynumeric(cp->users->content[i])))
  85       goto out;
  86
  87     theusers[j].np=np;
  88
  89     theusers[j].flags=(cp->users->content[i]>>2) & 0x30000000;
  90
  91     if (np==chanservnick) {
  92       theusers[j].flags|=0x40000000;
  93     }
  94
  95     theusers[j].rup=getreguserfromnick(np);
  96     if (theusers[j].rup) {
  97       theusers[j].rcup=findreguseronchannel(rcp, theusers[j].rup);
  98       if (theusers[j].rcup)
  99         theusers[j].flags |= theusers[j].rcup->flags;
 100     }
 101     j++;
 102   }
 103
 104   qsort(theusers, j, sizeof(struct chanuserrec), comparetheflags);
 105
 106   chanservstdmessage(sender,QM_USERSHEADER, cip->name->content);
 107
 108   flagmask=QCUFLAGS_PUBLIC;
 109   ops=voices=users=flags=qops=masters=0;
 110   if (cs_checkaccess(sender, NULL, CA_MASTERPRIV, cip, "users", 0, 1))
 111     flagmask |= QCUFLAGS_PUNISH;
 112
 113   if (cs_privcheck(QPRIV_VIEWFULLCHANLEV, sender))
 114     flagmask = QCUFLAG_ALL;
 115
 116   for (i=0;i<j;i++) {
 117     if (theusers[i].flags & ISOP) {
 118       ops++;
 119       modechar='@';
 120     } else if (theusers[i].flags & ISV) {
 121       voices++;
 122       modechar='+';
 123     } else {
 124       users++;
 125       modechar=' ';
 126     }
 127
 128     if (theusers[i].flags & ISQ) {
 129       modechar='@';
 130       unbuf="It's me!";
 131       flagbuf="";
 132     } else {
 133       if (theusers[i].rup) {
 134         unbuf=theusers[i].rup->username;
 135       } else {
 136         unbuf="";
 137       }
 138
 139       rcup=theusers[i].rcup;
 140
 141       if (rcup) {
 142         flags++;
 143         if (CUHasOpPriv(rcup))
 144           qops++;
 145
 146         if (CUIsMaster(rcup) || CUIsOwner(rcup))
 147           masters++;
 148       }
 149
 150       if (theusers[i].rcup && (theusers[i].rcup->flags & flagmask)) {
 151         flagbuf=printflags((flagmask | (theusers[i].np==sender?QCUFLAGS_PERSONAL:0)) & theusers[i].rcup->flags, rcuflags);
 152       } else {
 153         flagbuf="";
 154       }
 155     }
 156     np=theusers[i].np;
 157     chanservsendmessage(sender, "%c%-15s %-15s %-12s (%s)",modechar,np->nick,unbuf,flagbuf,visibleuserhost(np, uhbuf));
 158   }
 159   free(theusers);
 160
 161   chanservstdmessage(sender, QM_ENDOFLIST);
 162   chanservstdmessage(sender, QM_USERSSUMMARY, j, ops, voices, users, flags, qops, masters);
 163   return CMD_OK;
 164
 165   out:
 166   free(theusers);
 167   return CMD_ERROR;
 168 }