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[READ-ONLY] Mirror of https://github.com/VibeDevelopers/Comet.
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288/* * Comet: a slightly advanced ircd * m_scan.c: Provides information about various targets on various topics * * Copyright (c) 2006 Ariadne Conill <ariadne -at- dereferenced.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * 1.Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2.Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3.The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */
#include "stdinc.h"#include "class.h"#include "hook.h"#include "client.h"#include "hash.h"#include "hash.h"#include "match.h"#include "ircd.h"#include "numeric.h"#include "s_serv.h"#include "s_conf.h"#include "s_newconf.h"#include "s_user.h"#include "send.h"#include "msg.h"#include "parse.h"#include "modules.h"#include "logger.h"#include "response.h"
static const char scan_desc[] = "Provides the SCAN command to show users that have a mode set or cleared";
static void mo_scan(struct MsgBuf *, struct Client *, struct Client *, int, const char **);static void scan_umodes(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct Message scan_msgtab = { "SCAN", 0, 0, 0, 0, {mg_ignore, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_scan, 2}}};
mapi_clist_av1 scan_clist[] = { &scan_msgtab, NULL };
DECLARE_MODULE_AV2(scan, NULL, NULL, scan_clist, NULL, NULL, NULL, NULL, scan_desc);
typedef void (*scan_handler)(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct scan_cmd { const char *name; int operlevel; scan_handler handler;} scan_cmds[] = { {"UMODES", L_OPER, scan_umodes}, {NULL, 0, NULL}};
static const char *empty_sockhost = "255.255.255.255";static const char *spoofed_sockhost = "0";
/* * m_scan * parv[1] = options [or target] * parv[2] = [target] */static voidmo_scan(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]){ struct scan_cmd *sptr;
if(!IsOperGeneral(source_p)) { sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "general"); return; }
for (sptr = scan_cmds; sptr->name != NULL; sptr++) { if (!irccmp(sptr->name, parv[1])) { if (!(sptr->operlevel == L_ADMIN && !IsOperAdmin(source_p))) sptr->handler(msgbuf_p, client_p, source_p, parc, parv);
return; } }
sendto_one_notice(source_p, ":*** %s is not an implemented SCAN target", parv[1]);}
static voidscan_umodes(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]){ unsigned int allowed_umodes = 0, disallowed_umodes = 0; int what = MODE_ADD; int mode; bool list_users = true; int list_max = 500; int list_count = 0, count = 0; const char *mask = NULL; const char *c; struct Client *target_p; rb_dlink_list *target_list = &lclient_list; /* local clients only by default */ rb_dlink_node *tn; int i; const char *sockhost; char buf[512];
if (parc < 3) { if (MyClient(source_p)) sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name, source_p->name, "SCAN UMODES");
return; }
if (parv[2][0] != '+' && parv[2][0] != '-') { sendto_one_notice(source_p, ":SCAN UMODES: umodes parameter must start with '+' or '-'"); return; }
for (c = parv[2]; *c; c++) { switch(*c) { case '+': what = MODE_ADD; break; case '-': what = MODE_DEL; break; default: if ((mode = user_modes[(unsigned char) *c]) != 0) { if (what == MODE_ADD) allowed_umodes |= mode; else disallowed_umodes |= mode; } } }
for (i = 3; i < parc; i++) { if (!irccmp(parv[i], "no-list")) list_users = false; else if (!irccmp(parv[i], "list")) list_users = true; else if (!irccmp(parv[i], "global")) target_list = &global_client_list; else if (i < (parc - 1)) { if (!irccmp(parv[i], "list-max")) list_max = atoi(parv[++i]); else if (!irccmp(parv[i], "mask")) mask = parv[++i]; else { sendto_one_notice(source_p, ":SCAN UMODES: invalid parameters"); return; } } else { sendto_one_notice(source_p, ":SCAN UMODES: invalid parameters"); return; } } if (target_list == &global_client_list && list_users) { if (IsOperSpy(source_p)) { if (!ConfigFileEntry.operspy_dont_care_user_info) { rb_strlcpy(buf, "UMODES", sizeof buf); for (i = 2; i < parc; i++) { rb_strlcat(buf, " ", sizeof buf); rb_strlcat(buf, parv[i], sizeof buf); } report_operspy(source_p, "SCAN", buf); } } else { sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "spy"); return; } }
if (list_users) begin_local_response_batch();
RB_DLINK_FOREACH(tn, target_list->head) { unsigned int working_umodes = 0; char maskbuf[BUFSIZE];
target_p = tn->data;
if (!IsClient(target_p)) continue;
if(EmptyString(target_p->sockhost)) sockhost = empty_sockhost; else if(!show_ip(source_p, target_p)) sockhost = spoofed_sockhost; else sockhost = target_p->sockhost;
working_umodes = target_p->umodes;
/* require that we have the allowed umodes... */ if ((working_umodes & allowed_umodes) != allowed_umodes) continue;
/* require that we have NONE of the disallowed ones */ if ((working_umodes & disallowed_umodes) != 0) continue;
if (mask != NULL) { snprintf(maskbuf, sizeof maskbuf, "%s!%s@%s", target_p->name, target_p->username, target_p->host);
if (!match(mask, maskbuf)) continue; }
if (list_users && (!list_max || (list_count < list_max))) { char modebuf[BUFSIZE]; char *m = modebuf;
*m++ = '+';
for (i = 0; i < 128; i++) { if (target_p->umodes & user_modes[i]) *m++ = (char) i; }
*m++ = '\0';
list_count++;
sendto_one_numeric(source_p, RPL_SCANUMODES, form_str(RPL_SCANUMODES), target_p->name, target_p->username, target_p->host, sockhost, target_p->servptr->name, modebuf, target_p->info); } count++; }
sendto_one_numeric(source_p, RPL_SCANMATCHED, form_str(RPL_SCANMATCHED), count);}