newsearch/ns-gline.c

   1 /*
   2  * GLINE functionality
   3  */
   4
   5 #include "newsearch.h"
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10
  11 #include "../control/control.h" /* controlreply() */
  12 #include "../irc/irc.h" /* irc_send() */
  13 #include "../lib/irc_string.h" /* IPtostr(), longtoduration(), durationtolong() */
  14
  15 /* used for *_free functions that need to warn users of certain things
  16    i.e. hitting too many users in a (kill) or (gline) - declared in newsearch.c */
  17 extern nick *senderNSExtern;
  18
  19 void *gline_exe(struct searchNode *thenode, void *theinput);
  20 void gline_free(struct searchNode *thenode);
  21
  22 struct gline_localdata {
  23   unsigned int marker;
  24   unsigned int duration;
  25   int count;
  26   int type;
  27   char reason[NSMAX_REASON_LEN];
  28 };
  29
  30 struct searchNode *gline_parse(int type, int argc, char **argv) {
  31   struct gline_localdata *localdata;
  32   struct searchNode *thenode;
  33   int len;
  34
  35   if (!(localdata = (struct gline_localdata *) malloc(sizeof(struct gline_localdata)))) {
  36     parseError = "malloc: could not allocate memory for this search.";
  37     return NULL;
  38   }
  39   localdata->count = 0;
  40   localdata->type = type;
  41   if (type == SEARCHTYPE_CHANNEL)
  42     localdata->marker = nextchanmarker();
  43   else
  44     localdata->marker = nextnickmarker();
  45
  46   switch (argc) {
  47   case 0:
  48     localdata->duration = NSGLINE_DURATION;
  49     snprintf(localdata->reason, NSMAX_REASON_LEN, ".");
  50     break;
  51
  52   case 1:
  53     if (strchr(argv[0], ' ') == NULL) { /* duration specified */
  54       localdata->duration = durationtolong(argv[0]);
  55       /* error checking on gline duration */
  56       if (localdata->duration == 0)
  57         localdata->duration = NSGLINE_DURATION;
  58       snprintf(localdata->reason, NSMAX_REASON_LEN, ".");
  59     }
  60     else { /* reason specified */
  61       localdata->duration = NSGLINE_DURATION;
  62       len = snprintf(localdata->reason, NSMAX_REASON_LEN, ":%s", argv[0]);
  63       /* strip leading and trailing '"'s */
  64       localdata->reason[1] = ' ';
  65       localdata->reason[len-1] = '\0';
  66     }
  67     break;
  68
  69   case 2:
  70     localdata->duration = durationtolong(argv[0]);
  71     /* error checking on gline duration */
  72     if (localdata->duration == 0)
  73       localdata->duration = NSGLINE_DURATION;
  74     len = snprintf(localdata->reason, NSMAX_REASON_LEN, ":%s", argv[1]);
  75     /* strip leading and trailing '"'s */
  76     localdata->reason[1] = ' ';
  77     localdata->reason[len-1] = '\0';
  78     break;
  79
  80   default:
  81     free(localdata);
  82     parseError = "gline: invalid number of arguments";
  83     return NULL;
  84   }
  85
  86   if (!(thenode=(struct searchNode *)malloc(sizeof (struct searchNode)))) {
  87     /* couldn't malloc() memory for thenode, so free localdata to avoid leakage */
  88     parseError = "malloc: could not allocate memory for this search.";
  89     free(localdata);
  90     return NULL;
  91   }
  92
  93   thenode->returntype = RETURNTYPE_BOOL;
  94   thenode->localdata = localdata;
  95   thenode->exe = gline_exe;
  96   thenode->free = gline_free;
  97
  98   return thenode;
  99 }
 100
 101 void *gline_exe(struct searchNode *thenode, void *theinput) {
 102   struct gline_localdata *localdata;
 103   nick *np;
 104   chanindex *cip;
 105
 106   localdata = thenode->localdata;
 107
 108   if (localdata->type == SEARCHTYPE_CHANNEL) {
 109     cip = (chanindex *)theinput;
 110     cip->marker = localdata->marker;
 111     localdata->count += cip->channel->users->totalusers;
 112   }
 113   else {
 114     np = (nick *)theinput;
 115     np->marker = localdata->marker;
 116     localdata->count++;
 117   }
 118
 119   return (void *)1;
 120 }
 121
 122 void gline_free(struct searchNode *thenode) {
 123   struct gline_localdata *localdata;
 124   nick *np, *nnp;
 125   chanindex *cip, *ncip;
 126   int i, j, safe=0;
 127
 128   localdata = thenode->localdata;
 129
 130   if (localdata->count > NSMAX_GLINE_LIMIT) {
 131     /* need to warn the user that they have just tried to twat half the network ... */
 132     controlreply(senderNSExtern, "Warning: your pattern matches too many users (%d) - nothing done.", localdata->count);
 133     free(localdata);
 134     free(thenode);
 135     return;
 136   }
 137
 138   if (localdata->type == SEARCHTYPE_CHANNEL) {
 139     for (i=0;i<CHANNELHASHSIZE;i++) {
 140       for (cip=chantable[i];cip;cip=ncip) {
 141         ncip = cip->next;
 142         if (cip != NULL && cip->channel != NULL && cip->marker == localdata->marker) {
 143           for (j=0;j<cip->channel->users->hashsize;j++) {
 144             if (cip->channel->users->content[j]==nouser)
 145               continue;
 146
 147             if ((np=getnickbynumeric(cip->channel->users->content[j]))) {
 148               if (!IsOper(np) && !IsService(np) && !IsXOper(np)) {
 149                 if (np->host->clonecount <= NSMAX_GLINE_CLONES)
 150                   irc_send("%s GL * +*@%s %u :You (%s!%s@%s) have been glined for violating our terms of service%s",
 151                     mynumeric->content, IPtostr(np->p_ipaddr), localdata->duration, np->nick, np->ident, IPtostr(np->p_ipaddr), localdata->reason);
 152                 else
 153                   irc_send("%s GL * +%s@%s %u :You (%s!%s@%s) have been glined for violating our terms of service%s",
 154                     mynumeric->content, np->ident, IPtostr(np->p_ipaddr), localdata->duration, np->nick, np->ident, IPtostr(np->p_ipaddr), localdata->reason);
 155                 }
 156                 else
 157                   safe++;
 158             }
 159           }
 160         }
 161       }
 162     }
 163   }
 164   else {
 165     for (i=0;i<NICKHASHSIZE;i++) {
 166       for (np=nicktable[i];np;np=nnp) {
 167         nnp = np->next;
 168         if (np->marker == localdata->marker) {
 169           if (!IsOper(np) && !IsService(np) && !IsXOper(np)) {
 170             if (np->host->clonecount <= NSMAX_GLINE_CLONES)
 171               irc_send("%s GL * +*@%s %u :You (%s!%s@%s) have been glined for violating our terms of service%s",
 172                 mynumeric->content, IPtostr(np->p_ipaddr), localdata->duration, np->nick, np->ident, IPtostr(np->p_ipaddr), localdata->reason);
 173             else
 174               irc_send("%s GL * +%s@%s %u :You (%s!%s@%s) have been glined for violating our terms of service%s",
 175                 mynumeric->content, np->ident, IPtostr(np->p_ipaddr), localdata->duration, np->nick, np->ident, IPtostr(np->p_ipaddr), localdata->reason);
 176           }
 177           else
 178               safe++;
 179         }
 180       }
 181     }
 182   }
 183   if (safe)
 184     controlreply(senderNSExtern, "Warning: your pattern matched privileged users (%d in total) - these have not been touched.", safe);
 185   /* notify opers of the action */
 186   controlwall(NO_OPER, NL_GLINES, "%s/%s glined %d %s via %s for %s [%d untouched].", senderNSExtern->nick, senderNSExtern->authname, (localdata->count - safe),
 187     (localdata->count - safe) != 1 ? "users" : "user", (localdata->type == SEARCHTYPE_CHANNEL) ? "chansearch" : "nicksearch", longtoduration(localdata->duration, 1), safe);
 188   free(localdata);
 189   free(thenode);
 190 }