chanserv/chanservprivs.c

   1 /* chanservprivs.c */
   2
   3 #include "chanserv.h"
   4 #include "../nick/nick.h"
   5 #include "../lib/irc_string.h"
   6 #include <string.h>
   7 #include <ctype.h>
   8
   9 int cs_privcheck(int privnum, nick *np) {
  10   reguser *rup=NULL;
  11
  12   if (np)
  13     rup=getreguserfromnick(np);
  14
  15   switch(privnum) {
  16   case QPRIV_SUSPENDBYPASS:
  17   case QPRIV_VIEWCHANFLAGS:
  18   case QPRIV_VIEWFULLCHANLEV:
  19   case QPRIV_VIEWFULLWHOIS:
  20   case QPRIV_VIEWCHANMODES:
  21   case QPRIV_VIEWAUTOLIMIT:
  22   case QPRIV_VIEWBANTIMER:
  23   case QPRIV_VIEWUSERFLAGS:
  24   case QPRIV_VIEWCHANSUSPENSION:
  25     return (rup && UHasHelperPriv(rup));
  26
  27   case QPRIV_VIEWCOMMENTS:
  28   case QPRIV_VIEWEMAIL:
  29   case QPRIV_CHANGECHANLEV:
  30   case QPRIV_CHANGECHANFLAGS:
  31   case QPRIV_CHANGECHANMODES:
  32   case QPRIV_CHANGEAUTOLIMIT:
  33   case QPRIV_CHANGEBANTIMER:
  34   case QPRIV_CHANGEUSERFLAGS:
  35   case QPRIV_VIEWSUSPENDEDBY:
  36   case QPRIV_VIEWWALLMESSAGE: /* if you change VIEWWALLMESSAGE alter chanservwallmessage too */
  37   case QPRIV_VIEWREALHOST:
  38     return (np && rup && IsOper(np) && UHasOperPriv(rup));
  39
  40   default: /* By default opers can override anything */
  41     return (np && rup && IsOper(np) && UHasOperPriv(rup));
  42   }
  43 }
  44
  45 /* Generic access check function.
  46  * Note that the chanindex is returned for success, this
  47  * can be used to avoid duplicate hash lookups */
  48
  49 chanindex *cs_checkaccess(nick *np, const char *chan, unsigned int flags,
  50                           chanindex *cip, const char *cmdname, int priv, int quiet) {
  51   reguser *rup=getreguserfromnick(np);
  52   regchan *rcp;
  53   regchanuser *rcup=NULL;
  54   unsigned long *lp;
  55
  56   if ((flags & CA_AUTHED) && !rup)
  57     return NULL;
  58
  59   if (!cip && !(cip=findchanindex(chan))) {
  60     if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, chan);
  61     return NULL;
  62   }
  63
  64   if (!(rcp=cip->exts[chanservext])) {
  65     if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, cip->name->content);
  66     return NULL;
  67   }
  68
  69
  70   if (CIsSuspended(rcp)) {
  71     if (cs_privcheck(QPRIV_SUSPENDBYPASS, np)) {
  72       if (!quiet) chanservstdmessage(np, QM_BYPASSINGSUSPEND, cip->name->content);
  73     } else {
  74       if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, cip->name->content);
  75       return NULL;
  76     }
  77   }
  78
  79   if (rcp && rup)
  80     rcup=findreguseronchannel(rcp, rup);
  81
  82   if (!cs_privcheck(priv,np)) {
  83     if ((flags & CA_VOICEPRIV) &&
  84         !(rcp && CIsVoiceAll(rcp) && !(rcup && CUIsQuiet(rcup)) &&
  85           !(cip->channel && (nickbanned(np, cip->channel, 1) || IsInviteOnly(cip->channel)))) &&
  86         !(rcup && CUHasVoicePriv(rcup))) {
  87       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  88       return NULL;
  89     }
  90
  91     if ((flags & CA_NEEDKNOWN) && !rup) {
  92       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  93       return NULL;
  94     }
  95
  96     if ((flags & CA_NEEDKNOWN) && (!rcup || !CUKnown(rcup))) {
  97       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  98       return NULL;
  99     }
 100
 101     if (((flags & CA_OPPRIV    ) && !CUHasOpPriv(rcup))     ||
 102         ((flags & CA_MASTERPRIV) && !CUHasMasterPriv(rcup)) ||
 103         ((flags & CA_OWNERPRIV)  && !CUIsOwner(rcup))       ||
 104         ((flags & CA_TOPICPRIV ) && !CUHasTopicPriv(rcup))) {
 105       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
 106       return NULL;
 107     }
 108   }
 109
 110   if ((flags & CA_ONCHANREQ) && !(cip->channel)) {
 111     if (!quiet) chanservstdmessage(np, QM_NOTONCHAN, cip->name->content);
 112     return NULL;
 113   }
 114
 115   if (cip->channel) {
 116     lp=getnumerichandlefromchanhash(cip->channel->users, np->numeric);
 117
 118     if ((flags & CA_ONCHANREQ) && !lp) {
 119       if (!quiet) chanservstdmessage(np, QM_NOTONCHAN, cip->name->content);
 120       return NULL;
 121     }
 122
 123     if ((flags & CA_OPPED) && !(*lp & CUMODE_OP)) {
 124       if (!quiet) chanservstdmessage(np, QM_NOTOPPED, cip->name->content);
 125       return NULL;
 126     }
 127
 128     if ((flags & CA_DEOPPED) && (*lp & CUMODE_OP)) {
 129       if (!quiet) chanservstdmessage(np, QM_ALREADYOPPED, cip->name->content);
 130       return NULL;
 131     }
 132
 133     if ((flags & CA_VOICED) && !(*lp & CUMODE_VOICE)) {
 134       if (!quiet) chanservstdmessage(np, QM_NOTVOICED, cip->name->content);
 135       return NULL;
 136     }
 137
 138     if ((flags & CA_DEVOICED) && (*lp & CUMODE_VOICE)) {
 139       if (!quiet) chanservstdmessage(np, QM_ALREADYVOICED, cip->name->content);
 140       return NULL;
 141     }
 142
 143     if ((flags & CA_OFFCHAN) && lp) {
 144       if (!quiet) chanservstdmessage(np, QM_ALREADYONCHAN, cip->name->content);
 145       return NULL;
 146     }
 147   }
 148
 149   return cip;
 150 }
 151