newsearch/ns-gline.c

   1 /*
   2  * GLINE functionality
   3  */
   4
   5 #include "newsearch.h"
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 #include "../control/control.h" /* controlreply() */
  11 #include "../irc/irc.h" /* irc_send() */
  12 #include "../lib/irc_string.h" /* IPtostr(), longtoduration(), durationtolong() */
  13
  14 /* used for *_free functions that need to warn users of certain things
  15    i.e. hitting too many users in a (kill) or (gline) - declared in newsearch.c */
  16 extern const struct nick *senderNSExtern;
  17
  18 void *gline_exe(struct searchNode *thenode, int type, void *theinput);
  19 void gline_free(struct searchNode *thenode);
  20
  21 struct gline_localdata {
  22   unsigned int marker;
  23   unsigned int duration;
  24   int count;
  25 };
  26
  27 struct searchNode *gline_parse(int type, int argc, char **argv) {
  28   struct gline_localdata *localdata;
  29   struct searchNode *thenode;
  30
  31   if (!(localdata = (struct gline_localdata *) malloc(sizeof(struct gline_localdata)))) {
  32     parseError = "malloc: could not allocate memory for this search.";
  33     return NULL;
  34   }
  35   localdata->count = 0;
  36   localdata->marker = nextnickmarker();
  37
  38   /* gline durations */
  39   if (argc<1)
  40     localdata->duration = NSGLINE_DURATION;
  41   else {
  42     localdata->duration = durationtolong(argv[0]);
  43     /* error checking on gline duration */
  44     if (localdata->duration == 0)
  45       localdata->duration = NSGLINE_DURATION;
  46   }
  47
  48   if (!(thenode=(struct searchNode *)malloc(sizeof (struct searchNode)))) {
  49     /* couldn't malloc() memory for thenode, so free localdata to avoid leakage */
  50     parseError = "malloc: could not allocate memory for this search.";
  51     free(localdata);
  52     return NULL;
  53   }
  54
  55   thenode->returntype = RETURNTYPE_BOOL;
  56   thenode->localdata = localdata;
  57   thenode->exe = gline_exe;
  58   thenode->free = gline_free;
  59
  60   return thenode;
  61 }
  62
  63 void *gline_exe(struct searchNode *thenode, int type, void *theinput) {
  64   struct gline_localdata *localdata;
  65   nick *np = (nick *)theinput;
  66
  67   localdata = thenode->localdata;
  68
  69   np->marker = localdata->marker;
  70   localdata->count++;
  71
  72   switch (type) {
  73     case RETURNTYPE_INT:
  74     case RETURNTYPE_BOOL:
  75       return (void *)1;
  76     case RETURNTYPE_STRING:
  77      return "1";
  78   }
  79   return NULL;
  80 }
  81
  82 void gline_free(struct searchNode *thenode) {
  83   struct gline_localdata *localdata;
  84   nick *np, *nnp;
  85   int i, safe=0;
  86
  87   localdata = thenode->localdata;
  88
  89   if (localdata->count > NSMAX_GLINE_LIMIT) {
  90     /* need to warn the user that they have just tried to twat half the network ... */
  91     controlreply(senderNSExtern, "Warning: your pattern matches too many users (%d) - nothing done.", localdata->count);
  92     free(localdata);
  93     free(thenode);
  94     return;
  95   }
  96
  97   for (i=0;i<NICKHASHSIZE;i++) {
  98     for (np=nicktable[i];np;np=nnp) {
  99       nnp = np->next;
 100       if (np->marker == localdata->marker) {
 101         if (!IsOper(np) && !IsService(np) && !IsXOper(np)) {
 102           if (np->ident[0] == '~')
 103             irc_send("%s GL * +*@%s %u :You (%s!%s@%s) have been glined for violating our terms of service.",
 104               mynumeric->content, IPtostr(np->ipaddress), localdata->duration, np->nick, np->ident, IPtostr(np->ipaddress));
 105           else
 106             irc_send("%s GL * +%s@%s %u :You (%s!%s@%s) have been glined for violating our terms of service.",
 107               mynumeric->content, np->ident, IPtostr(np->ipaddress), localdata->duration, np->nick, np->ident, IPtostr(np->ipaddress));
 108         }
 109         else
 110             safe++;
 111       }
 112     }
 113   }
 114   if (safe)
 115     controlreply(senderNSExtern, "Warning: your pattern matched privileged users (%d in total) - these have not been touched.", safe);
 116   /* notify opers of the action */
 117   controlwall(NO_OPER, NL_GLINES, "%s/%s glined %d %s via nicksearch for %s [%d untouched].", senderNSExtern->nick, senderNSExtern->authname, (localdata->count - safe),
 118     (localdata->count - safe) != 1 ? "users" : "user", longtoduration(localdata->duration, 1), safe);
 119   free(localdata);
 120   free(thenode);
 121 }