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     return (rup && UHasHelperPriv(rup));
  25
  26   case QPRIV_VIEWCOMMENTS:
  27   case QPRIV_VIEWEMAIL:
  28   case QPRIV_CHANGECHANLEV:
  29   case QPRIV_CHANGECHANFLAGS:
  30   case QPRIV_CHANGECHANMODES:
  31   case QPRIV_CHANGEAUTOLIMIT:
  32   case QPRIV_CHANGEBANTIMER:
  33   case QPRIV_CHANGEUSERFLAGS:
  34     return (np && rup && IsOper(np) && UHasOperPriv(rup));
  35
  36   default:
  37     return 0;
  38   }
  39 }
  40
  41 /* Generic access check function.
  42  * Note that the chanindex is returned for success, this
  43  * can be used to avoid duplicate hash lookups */
  44
  45 chanindex *cs_checkaccess(nick *np, const char *chan, unsigned int flags,
  46                           chanindex *cip, const char *cmdname, int priv, int quiet) {
  47   reguser *rup=getreguserfromnick(np);
  48   regchan *rcp;
  49   regchanuser *rcup=NULL;
  50   unsigned long *lp;
  51
  52   if ((flags & CA_AUTHED) && !rup)
  53     return NULL;
  54
  55   if (!cip && !(cip=findchanindex(chan))) {
  56     if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, chan);
  57     return NULL;
  58   }
  59
  60   if (!(rcp=cip->exts[chanservext]) ||
  61       (CIsSuspended(rcp) && !cs_privcheck(QPRIV_SUSPENDBYPASS, np))) {
  62     if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, cip->name->content);
  63     return NULL;
  64   }
  65
  66   if (!priv || !cs_privcheck(priv,np)) {
  67     if ((flags & CA_VOICEPRIV) &&
  68         !(rcp && (CIsVoiceAll(rcp)) &&
  69           !(cip->channel && (nickbanned(np, cip->channel) || IsInviteOnly(cip->channel)))) &&
  70         !(rcup && (CUHasVoicePriv(rcup)))) {
  71       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  72       return NULL;
  73     }
  74
  75     if ((flags & CA_NEEDKNOWN) && !rup) {
  76       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  77       return NULL;
  78     }
  79
  80     if ((flags & CA_NEEDKNOWN) && (!(rcup=findreguseronchannel(rcp, rup)) ||
  81         !CUKnown(rcup))) {
  82       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  83       return NULL;
  84     }
  85
  86     if (((flags & CA_OPPRIV    ) && !CUHasOpPriv(rcup))     ||
  87         ((flags & CA_MASTERPRIV) && !CUHasMasterPriv(rcup)) ||
  88         ((flags & CA_OWNERPRIV)  && !CUIsOwner(rcup))       ||
  89         ((flags & CA_TOPICPRIV ) && !CUHasTopicPriv(rcup))) {
  90       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  91       return NULL;
  92     }
  93   }
  94
  95   if ((flags & CA_ONCHANREQ) && !(cip->channel)) {
  96     if (!quiet) chanservstdmessage(np, QM_NOTONCHAN, cip->name->content);
  97     return NULL;
  98   }
  99
 100   if (cip->channel) {
 101     lp=getnumerichandlefromchanhash(cip->channel->users, np->numeric);
 102
 103     if ((flags & CA_ONCHANREQ) && !lp) {
 104       if (!quiet) chanservstdmessage(np, QM_NOTONCHAN, cip->name->content);
 105       return NULL;
 106     }
 107
 108     if ((flags & CA_OPPED) && !(*lp & CUMODE_OP)) {
 109       if (!quiet) chanservstdmessage(np, QM_NOTOPPED, cip->name->content);
 110       return NULL;
 111     }
 112
 113     if ((flags & CA_DEOPPED) && (*lp & CUMODE_OP)) {
 114       if (!quiet) chanservstdmessage(np, QM_ALREADYOPPED, cip->name->content);
 115       return NULL;
 116     }
 117
 118     if ((flags & CA_VOICED) && !(*lp & CUMODE_VOICE)) {
 119       if (!quiet) chanservstdmessage(np, QM_NOTVOICED, cip->name->content);
 120       return NULL;
 121     }
 122
 123     if ((flags & CA_DEVOICED) && (*lp & CUMODE_VOICE)) {
 124       if (!quiet) chanservstdmessage(np, QM_ALREADYVOICED, cip->name->content);
 125       return NULL;
 126     }
 127
 128     if ((flags & CA_OFFCHAN) && lp) {
 129       if (!quiet) chanservstdmessage(np, QM_ALREADYONCHAN, cip->name->content);
 130       return NULL;
 131     }
 132   }
 133
 134   return cip;
 135 }
 136