src/ircd_auth.c

   1 /* ircd_auth.c - NextIRCd
   2  * Copyright (C) 2012-2013  Philipp Kreil (pk910)
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 #include <string.h>
  18
  19 #include "ircd_auth.h"
  20 #include "ircd_sock.h"
  21 #include "struct_auth.h"
  22 #include "struct_connection.h"
  23 #include "ircd_client.h"
  24 #include "IOHandler/IOSockets.h"
  25 #include "IOHandler/IODNSLookup.h"
  26 #include "version.h"
  27
  28 static void auth_start_dnsreverse(struct Auth *auth);
  29 static IODNS_CALLBACK(auth_dns_callback);
  30 static void auth_free(struct Auth *auth);
  31
  32 static struct Auth *authlist_first = NULL;
  33 static struct Auth *authlist_last = NULL;
  34
  35 struct Auth *auth_new(struct Connection *conn) {
  36         struct Auth *auth = calloc(1, sizeof(*auth));
  37         socket_printf(conn, "NOTICE AUTH :*** NextIRCd v%d.%d (%s)", VERSION_NUMBER, patchlevel, revision);
  38
  39         auth->conn = conn;
  40         conn->data.auth = auth;
  41         time(&auth->startup_time);
  42
  43         auth->prev = authlist_last;
  44         auth->next = NULL;
  45         if(!authlist_last)
  46                 authlist_first = auth;
  47         authlist_last = auth;
  48
  49         auth_start_dnsreverse(auth);
  50
  51         return auth;
  52 }
  53
  54 static void auth_start_dnsreverse(struct Auth *auth) {
  55         socket_printf(auth->conn, "NOTICE AUTH :*** Looking up your hostname");
  56
  57         struct IODNSAddress *sockaddr;
  58         sockaddr = iosocket_get_remote_addr(auth->conn->socket);
  59         if(sockaddr) {
  60                 auth->dnslookup = iodns_getnameinfo(sockaddr->address, sockaddr->addresslen, auth_dns_callback, auth);
  61         } else {
  62                 // critical error!
  63         }
  64 }
  65
  66 static IODNS_CALLBACK(auth_dns_callback) {
  67         struct Auth *auth = event->query->data;
  68         struct IODNSResult *dnsresult = event->result;
  69
  70         auth->dnslookup = NULL;
  71
  72         if(event->type == IODNSEVENT_SUCCESS) {
  73                 strncpy(auth->host, dnsresult->result.host, HOSTLEN);
  74                 socket_printf(auth->conn, "NOTICE AUTH :*** Found your hostname (%s)", auth->host);
  75         } else {
  76                 struct IODNSAddress *sockaddr = iosocket_get_remote_addr(auth->conn->socket);
  77                 iodns_print_address(sockaddr, auth->conn->socket->ipv6, auth->host, HOSTLEN);
  78                 socket_printf(auth->conn, "NOTICE AUTH :*** Couldn't look up your hostname. Using your IP instead (%s)", auth->host);
  79         }
  80         if(dnsresult)
  81                 iodns_free_result(dnsresult);
  82
  83         auth_try_finish(auth);
  84 }
  85
  86
  87 void auth_try_finish(struct Auth *auth) {
  88         if(auth->server) {
  89
  90         } else {
  91                 if(!auth->have_nick || !auth->have_user)
  92                         return;
  93                 if(!auth->sent_ping) {
  94                         auth->sent_ping = 1;
  95                         socket_printf(auth->conn, ":AUTH PING :%d", auth->startup_time);
  96                 } else if(auth->have_pong && auth->have_dnsresolv) {
  97                         struct Client *client = client_connected(auth);
  98                         auth->conn->authed = 1;
  99                         auth->conn->data.client = client;
 100                         auth_free(auth);
 101                 }
 102         }
 103 }
 104
 105 void auth_abort(struct Auth *auth) {
 106
 107 }
 108
 109 static void auth_free(struct Auth *auth) {
 110         if(auth->dnslookup) {
 111
 112         }
 113
 114 }