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     return (np && rup && IsOper(np) && UHasOperPriv(rup));
  38
  39   default: /* By default opers can override anything */
  40     return (np && rup && IsOper(np) && UHasOperPriv(rup));
  41   }
  42 }
  43
  44 /* Generic access check function.
  45  * Note that the chanindex is returned for success, this
  46  * can be used to avoid duplicate hash lookups */
  47
  48 chanindex *cs_checkaccess(nick *np, const char *chan, unsigned int flags,
  49                           chanindex *cip, const char *cmdname, int priv, int quiet) {
  50   reguser *rup=getreguserfromnick(np);
  51   regchan *rcp;
  52   regchanuser *rcup=NULL;
  53   unsigned long *lp;
  54
  55   if ((flags & CA_AUTHED) && !rup)
  56     return NULL;
  57
  58   if (!cip && !(cip=findchanindex(chan))) {
  59     if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, chan);
  60     return NULL;
  61   }
  62
  63   if (!(rcp=cip->exts[chanservext]) ||
  64       (CIsSuspended(rcp) && !cs_privcheck(QPRIV_SUSPENDBYPASS, np))) {
  65     if (!quiet) chanservstdmessage(np, QM_UNKNOWNCHAN, cip->name->content);
  66     return NULL;
  67   }
  68
  69   if (rcp && rup)
  70     rcup=findreguseronchannel(rcp, rup);
  71
  72   if (!cs_privcheck(priv,np)) {
  73     if ((flags & CA_VOICEPRIV) &&
  74         !(rcp && (CIsVoiceAll(rcp)) &&
  75           !(cip->channel && (nickbanned_visible(np, cip->channel) || IsInviteOnly(cip->channel)))) &&
  76         !(rcup && (CUHasVoicePriv(rcup)))) {
  77       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  78       return NULL;
  79     }
  80
  81     if ((flags & CA_NEEDKNOWN) && !rup) {
  82       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  83       return NULL;
  84     }
  85
  86     if ((flags & CA_NEEDKNOWN) && (!rcup || !CUKnown(rcup))) {
  87       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  88       return NULL;
  89     }
  90
  91     if (((flags & CA_OPPRIV    ) && !CUHasOpPriv(rcup))     ||
  92         ((flags & CA_MASTERPRIV) && !CUHasMasterPriv(rcup)) ||
  93         ((flags & CA_OWNERPRIV)  && !CUIsOwner(rcup))       ||
  94         ((flags & CA_TOPICPRIV ) && !CUHasTopicPriv(rcup))) {
  95       if (!quiet) chanservstdmessage(np, QM_NOACCESSONCHAN, cip->name->content, cmdname);
  96       return NULL;
  97     }
  98   }
  99
 100   if ((flags & CA_ONCHANREQ) && !(cip->channel)) {
 101     if (!quiet) chanservstdmessage(np, QM_NOTONCHAN, cip->name->content);
 102     return NULL;
 103   }
 104
 105   if (cip->channel) {
 106     lp=getnumerichandlefromchanhash(cip->channel->users, np->numeric);
 107
 108     if ((flags & CA_ONCHANREQ) && !lp) {
 109       if (!quiet) chanservstdmessage(np, QM_NOTONCHAN, cip->name->content);
 110       return NULL;
 111     }
 112
 113     if ((flags & CA_OPPED) && !(*lp & CUMODE_OP)) {
 114       if (!quiet) chanservstdmessage(np, QM_NOTOPPED, cip->name->content);
 115       return NULL;
 116     }
 117
 118     if ((flags & CA_DEOPPED) && (*lp & CUMODE_OP)) {
 119       if (!quiet) chanservstdmessage(np, QM_ALREADYOPPED, cip->name->content);
 120       return NULL;
 121     }
 122
 123     if ((flags & CA_VOICED) && !(*lp & CUMODE_VOICE)) {
 124       if (!quiet) chanservstdmessage(np, QM_NOTVOICED, cip->name->content);
 125       return NULL;
 126     }
 127
 128     if ((flags & CA_DEVOICED) && (*lp & CUMODE_VOICE)) {
 129       if (!quiet) chanservstdmessage(np, QM_ALREADYVOICED, cip->name->content);
 130       return NULL;
 131     }
 132
 133     if ((flags & CA_OFFCHAN) && lp) {
 134       if (!quiet) chanservstdmessage(np, QM_ALREADYONCHAN, cip->name->content);
 135       return NULL;
 136     }
 137   }
 138
 139   return cip;
 140 }
 141