modules/m_monitor.c

   1 /* modules/m_monitor.c
   2  *
   3  *  Copyright (C) 2005 Lee Hardy <lee@leeh.co.uk>
   4  *  Copyright (C) 2005 ircd-ratbox development team
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met:
   9  *
  10  * 1.Redistributions of source code must retain the above copyright notice,
  11  *   this list of conditions and the following disclaimer.
  12  * 2.Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  * 3.The name of the author may not be used to endorse or promote products
  16  *   derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "stdinc.h"
  32 #include "tools.h"
  33 #include "client.h"
  34 #include "msg.h"
  35 #include "parse.h"
  36 #include "modules.h"
  37 #include "monitor.h"
  38 #include "numeric.h"
  39 #include "s_conf.h"
  40
  41 static int m_monitor(struct Client *, struct Client *, int, const char **);
  42
  43 struct Message monitor_msgtab = {
  44         "MONITOR", 0, 0, 0, MFLG_SLOW,
  45         {mg_unreg, {m_monitor, 2}, mg_ignore, mg_ignore, mg_ignore, {m_monitor, 2}}
  46 };
  47
  48 mapi_clist_av1 monitor_clist[] = { &monitor_msgtab, NULL };
  49 DECLARE_MODULE_AV1(monitor, NULL, NULL, monitor_clist, NULL, NULL, "$Revision: 26 $");
  50
  51 static void
  52 add_monitor(struct Client *client_p, const char *nicks)
  53 {
  54         char onbuf[BUFSIZE], offbuf[BUFSIZE];
  55         struct Client *target_p;
  56         struct monitor *monptr;
  57         const char *name;
  58         char *tmp;
  59         char *p;
  60         char *onptr, *offptr;
  61         int mlen, arglen;
  62         int cur_onlen, cur_offlen;
  63
  64         /* these two are same length, just diff numeric */
  65         cur_offlen = cur_onlen = mlen = sprintf(onbuf, form_str(RPL_MONONLINE),
  66                                                 me.name, client_p->name, "");
  67         sprintf(offbuf, form_str(RPL_MONOFFLINE),
  68                         me.name, client_p->name, "");
  69
  70         onptr = onbuf + mlen;
  71         offptr = offbuf + mlen;
  72
  73         tmp = LOCAL_COPY(nicks);
  74
  75         for(name = strtoken(&p, tmp, ","); name; name = strtoken(&p, NULL, ","))
  76         {
  77                 if(EmptyString(name) || strlen(name) > NICKLEN-1)
  78                         continue;
  79
  80                 if(dlink_list_length(&client_p->localClient->monitor_list) >=
  81                         ConfigFileEntry.max_monitor)
  82                 {
  83                         char buf[100];
  84
  85                         if(cur_onlen != mlen)
  86                                 sendto_one(client_p, "%s", onbuf);
  87                         if(cur_offlen != mlen)
  88                                 sendto_one(client_p, "%s", offbuf);
  89
  90                         if(p)
  91                                 snprintf(buf, sizeof(buf), "%s,%s", name, p);
  92                         else
  93                                 snprintf(buf, sizeof(buf), "%s", name);
  94
  95                         sendto_one(client_p, form_str(ERR_MONLISTFULL),
  96                                         me.name, client_p->name,
  97                                         ConfigFileEntry.max_monitor, buf);
  98                         return;
  99                 }
 100
 101                 monptr = find_monitor(name, 1);
 102
 103                 /* already monitoring this nick */
 104                 if(dlinkFind(client_p, &monptr->users))
 105                         continue;
 106
 107                 dlinkAddAlloc(client_p, &monptr->users);
 108                 dlinkAddAlloc(monptr, &client_p->localClient->monitor_list);
 109
 110                 if((target_p = find_named_person(name)) != NULL)
 111                 {
 112                         if(cur_onlen + strlen(target_p->name) +
 113                            strlen(target_p->username) + strlen(target_p->host) + 3 >= BUFSIZE-3)
 114                         {
 115                                 sendto_one(client_p, "%s", onbuf);
 116                                 cur_onlen = mlen;
 117                                 onptr = onbuf + mlen;
 118                         }
 119
 120                         if(cur_onlen != mlen)
 121                         {
 122                                 *onptr++ = ',';
 123                                 cur_onlen++;
 124                         }
 125
 126                         arglen = sprintf(onptr, "%s!%s@%s",
 127                                         target_p->name, target_p->username,
 128                                         target_p->host);
 129                         onptr += arglen;
 130                         cur_onlen += arglen;
 131                 }
 132                 else
 133                 {
 134                         if(cur_offlen + strlen(name) + 1 >= BUFSIZE-3)
 135                         {
 136                                 sendto_one(client_p, "%s", offbuf);
 137                                 cur_offlen = mlen;
 138                                 offptr = offbuf + mlen;
 139                         }
 140
 141                         if(cur_offlen != mlen)
 142                         {
 143                                 *offptr++ = ',';
 144                                 cur_offlen++;
 145                         }
 146
 147                         arglen = sprintf(offptr, "%s", name);
 148                         offptr += arglen;
 149                         cur_offlen += arglen;
 150                 }
 151         }
 152
 153         if(cur_onlen != mlen)
 154                 sendto_one(client_p, "%s", onbuf);
 155         if(cur_offlen != mlen)
 156                 sendto_one(client_p, "%s", offbuf);
 157 }
 158
 159 static void
 160 del_monitor(struct Client *client_p, const char *nicks)
 161 {
 162         struct monitor *monptr;
 163         const char *name;
 164         char *tmp;
 165         char *p;
 166
 167         if(!dlink_list_length(&client_p->localClient->monitor_list))
 168                 return;
 169
 170         tmp = LOCAL_COPY(nicks);
 171
 172         for(name = strtoken(&p, tmp, ","); name; name = strtoken(&p, NULL, ","))
 173         {
 174                 if(EmptyString(name))
 175                         continue;
 176
 177                 /* not monitored */
 178                 if((monptr = find_monitor(name, 0)) == NULL)
 179                         continue;
 180
 181                 dlinkFindDestroy(client_p, &monptr->users);
 182                 dlinkFindDestroy(monptr, &client_p->localClient->monitor_list);
 183         }
 184 }
 185
 186 static void
 187 list_monitor(struct Client *client_p)
 188 {
 189         char buf[BUFSIZE];
 190         struct monitor *monptr;
 191         char *nbuf;
 192         dlink_node *ptr;
 193         int mlen, arglen, cur_len;
 194
 195         if(!dlink_list_length(&client_p->localClient->monitor_list))
 196         {
 197                 sendto_one(client_p, form_str(RPL_ENDOFMONLIST),
 198                                 me.name, client_p->name);
 199                 return;
 200         }
 201
 202         cur_len = mlen = sprintf(buf, form_str(RPL_MONLIST),
 203                                 me.name, client_p->name, "");
 204         nbuf = buf + mlen;
 205
 206         DLINK_FOREACH(ptr, client_p->localClient->monitor_list.head)
 207         {
 208                 monptr = ptr->data;
 209
 210                 if(cur_len + strlen(monptr->name) + 1 >= BUFSIZE-3)
 211                 {
 212                         sendto_one(client_p, "%s", buf);
 213                         nbuf = buf + mlen;
 214                         cur_len = mlen;
 215                 }
 216
 217                 if(cur_len != mlen)
 218                 {
 219                         *nbuf++ = ',';
 220                         cur_len++;
 221                 }
 222
 223                 arglen = sprintf(nbuf, "%s", monptr->name);
 224                 cur_len += arglen;
 225                 nbuf += arglen;
 226         }
 227
 228         sendto_one(client_p, "%s", buf);
 229         sendto_one(client_p, form_str(RPL_ENDOFMONLIST),
 230                         me.name, client_p->name);
 231 }
 232
 233 static void
 234 show_monitor_status(struct Client *client_p)
 235 {
 236         char onbuf[BUFSIZE], offbuf[BUFSIZE];
 237         struct Client *target_p;
 238         struct monitor *monptr;
 239         char *onptr, *offptr;
 240         int cur_onlen, cur_offlen;
 241         int mlen, arglen;
 242         dlink_node *ptr;
 243
 244         mlen = cur_onlen = sprintf(onbuf, form_str(RPL_MONONLINE),
 245                                         me.name, client_p->name, "");
 246         cur_offlen = sprintf(offbuf, form_str(RPL_MONOFFLINE),
 247                                 me.name, client_p->name, "");
 248
 249         onptr = onbuf + mlen;
 250         offptr = offbuf + mlen;
 251
 252         DLINK_FOREACH(ptr, client_p->localClient->monitor_list.head)
 253         {
 254                 monptr = ptr->data;
 255
 256                 if((target_p = find_named_person(monptr->name)) != NULL)
 257                 {
 258                         if(cur_onlen + strlen(target_p->name) +
 259                            strlen(target_p->username) + strlen(target_p->host) + 3 >= BUFSIZE-3)
 260                         {
 261                                 sendto_one(client_p, "%s", onbuf);
 262                                 cur_onlen = mlen;
 263                                 onptr = onbuf + mlen;
 264                         }
 265
 266                         if(cur_onlen != mlen)
 267                         {
 268                                 *onptr++ = ',';
 269                                 cur_onlen++;
 270                         }
 271
 272                         arglen = sprintf(onptr, "%s!%s@%s",
 273                                         target_p->name, target_p->username,
 274                                         target_p->host);
 275                         onptr += arglen;
 276                         cur_onlen += arglen;
 277                 }
 278                 else
 279                 {
 280                         if(cur_offlen + strlen(monptr->name) + 1 >= BUFSIZE-3)
 281                         {
 282                                 sendto_one(client_p, "%s", offbuf);
 283                                 cur_offlen = mlen;
 284                                 offptr = offbuf + mlen;
 285                         }
 286
 287                         if(cur_offlen != mlen)
 288                         {
 289                                 *offptr++ = ',';
 290                                 cur_offlen++;
 291                         }
 292
 293                         arglen = sprintf(offptr, "%s", monptr->name);
 294                         offptr += arglen;
 295                         cur_offlen += arglen;
 296                 }
 297         }
 298
 299         if(cur_onlen != mlen)
 300                 sendto_one(client_p, "%s", onbuf);
 301         if(cur_offlen != mlen)
 302                 sendto_one(client_p, "%s", offbuf);
 303 }
 304
 305 static int
 306 m_monitor(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 307 {
 308         switch(parv[1][0])
 309         {
 310                 case '+':
 311                         if(parc < 3 || EmptyString(parv[2]))
 312                         {
 313                                 sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS),
 314                                                 me.name, source_p->name, "MONITOR");
 315                                 return 0;
 316                         }
 317
 318                         add_monitor(source_p, parv[2]);
 319                         break;
 320                 case '-':
 321                         if(parc < 3 || EmptyString(parv[2]))
 322                         {
 323                                 sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS),
 324                                                 me.name, source_p->name, "MONITOR");
 325                                 return 0;
 326                         }
 327
 328                         del_monitor(source_p, parv[2]);
 329                         break;
 330
 331                 case 'C':
 332                 case 'c':
 333                         clear_monitor(source_p);
 334                         break;
 335
 336                 case 'L':
 337                 case 'l':
 338                         list_monitor(source_p);
 339                         break;
 340
 341                 case 'S':
 342                 case 's':
 343                         show_monitor_status(source_p);
 344                         break;
 345
 346                 default:
 347                         break;
 348         }
 349
 350         return 0;
 351 }
 352