modules/m_privs.c

   1 /*
   2  * m_privs.c: Shows effective operator privileges
   3  *
   4  * Copyright (C) 2008 Jilles Tjoelker
   5  * Copyright (C) 2008 charybdis development team
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are
   9  * met:
  10  *
  11  * 1.Redistributions of source code must retain the above copyright notice,
  12  *   this list of conditions and the following disclaimer.
  13  * 2.Redistributions in binary form must reproduce the above copyright
  14  *   notice, this list of conditions and the following disclaimer in the
  15  *   documentation and/or other materials provided with the distribution.
  16  * 3.The name of the author may not be used to endorse or promote products
  17  *   derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  23  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  25  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  27  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  28  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "stdinc.h"
  33 #include "client.h"
  34 #include "common.h"
  35 #include "numeric.h"
  36 #include "send.h"
  37 #include "msg.h"
  38 #include "parse.h"
  39 #include "modules.h"
  40 #include "s_conf.h"
  41 #include "s_newconf.h"
  42
  43 static int m_privs(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  44 static int me_privs(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  45 static int mo_privs(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  46
  47 struct Message privs_msgtab = {
  48         "PRIVS", 0, 0, 0, 0,
  49         {mg_unreg, {m_privs, 0}, mg_ignore, mg_ignore, {me_privs, 0}, {mo_privs, 0}}
  50 };
  51
  52 mapi_clist_av1 privs_clist[] = {
  53         &privs_msgtab,
  54         NULL
  55 };
  56
  57 /* XXX this is a copy, not so nice */
  58 struct mode_table
  59 {
  60         const char *name;
  61         unsigned int mode;
  62 };
  63
  64 /* there is no such table like this anywhere else */
  65 static struct mode_table auth_client_table[] = {
  66         {"resv_exempt",         FLAGS2_EXEMPTRESV       },
  67         {"kline_exempt",        FLAGS2_EXEMPTKLINE      },
  68         {"flood_exempt",        FLAGS2_EXEMPTFLOOD      },
  69         {"spambot_exempt",      FLAGS2_EXEMPTSPAMBOT    },
  70         {"shide_exempt",        FLAGS2_EXEMPTSHIDE      },
  71         {"jupe_exempt",         FLAGS2_EXEMPTJUPE       },
  72         {"extend_chans",        FLAGS2_EXTENDCHANS      },
  73         {NULL, 0}
  74 };
  75
  76 DECLARE_MODULE_AV1(privs, NULL, NULL, privs_clist, NULL, NULL, "");
  77
  78 static void show_privs(struct Client *source_p, struct Client *target_p)
  79 {
  80         char buf[512];
  81         struct mode_table *p;
  82
  83         buf[0] = '\0';
  84         if (target_p->localClient->privset)
  85                 rb_strlcat(buf, target_p->localClient->privset->privs, sizeof buf);
  86         if (IsOper(target_p))
  87         {
  88                 if (buf[0] != '\0')
  89                         rb_strlcat(buf, " ", sizeof buf);
  90                 rb_strlcat(buf, "operator:", sizeof buf);
  91                 rb_strlcat(buf, target_p->localClient->opername, sizeof buf);
  92
  93                 if (target_p->localClient->privset)
  94                 {
  95                         if (buf[0] != '\0')
  96                                 rb_strlcat(buf, " ", sizeof buf);
  97                         rb_strlcat(buf, "privset:", sizeof buf);
  98                         rb_strlcat(buf, target_p->localClient->privset->name, sizeof buf);
  99                 }
 100         }
 101         p = &auth_client_table[0];
 102         while (p->name != NULL)
 103         {
 104                 if (target_p->flags2 & p->mode)
 105                 {
 106                         if (buf[0] != '\0')
 107                                 rb_strlcat(buf, " ", sizeof buf);
 108                         rb_strlcat(buf, p->name, sizeof buf);
 109                 }
 110                 p++;
 111         }
 112         sendto_one_numeric(source_p, RPL_PRIVS, form_str(RPL_PRIVS),
 113                         target_p->name, buf);
 114 }
 115
 116 static int me_privs(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 117 {
 118         struct Client *target_p;
 119
 120         if (!IsOper(source_p) || parc < 2 || EmptyString(parv[1]))
 121                 return 0;
 122
 123         /* we cannot show privs for remote clients */
 124         if((target_p = find_person(parv[1])) && MyClient(target_p))
 125                 show_privs(source_p, target_p);
 126
 127         return 0;
 128 }
 129
 130 static int mo_privs(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 131 {
 132         struct Client *target_p;
 133
 134         if (parc < 2 || EmptyString(parv[1]))
 135                 target_p = source_p;
 136         else
 137         {
 138                 target_p = find_named_person(parv[1]);
 139                 if (target_p == NULL)
 140                 {
 141                         sendto_one_numeric(source_p, ERR_NOSUCHNICK,
 142                                            form_str(ERR_NOSUCHNICK), parv[1]);
 143                         return 0;
 144                 }
 145         }
 146
 147         if (MyClient(target_p))
 148                 show_privs(source_p, target_p);
 149         else
 150                 sendto_one(target_p, ":%s ENCAP %s PRIVS %s",
 151                                 get_id(source_p, target_p),
 152                                 target_p->servptr->name,
 153                                 use_id(target_p));
 154         return 0;
 155 }
 156
 157 static int m_privs(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 158 {
 159         if (parc >= 2 && !EmptyString(parv[1]) &&
 160                         irccmp(parv[1], source_p->name)) {
 161                 sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
 162                                    form_str(ERR_NOPRIVILEGES));
 163                 return 0;
 164         }
 165
 166         show_privs(source_p, source_p);
 167         return 0;
 168 }