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 "struct_auth.h"
  18 #include "struct_connection.h"
  19 #include "ircd_client.h"
  20 #include "IOHandler/IOSockets.h"
  21 #include "IOHandler/IODNSLookup.h"
  22 #include "version.h"
  23
  24 static IODNS_CALLBACK(auth_dns_callback);
  25 static void auth_free(struct Auth *auth);
  26
  27 static struct Auth *authlist_first = NULL;
  28 static struct Auth *authlist_last = NULL;
  29
  30 struct Auth *auth_new(struct Connection *conn) {
  31         struct Auth *auth = calloc(1, sizeof(*auth));
  32         socket_printf(conn, "NOTICE AUTH :*** NextIRCd v%d.%d (%s)", VERSION_NUMBER, patchlevel, revision);
  33
  34         auth->conn = conn;
  35         time(&auth->startup_time);
  36
  37         auth->prev = authlist_last;
  38         auth->next = NULL;
  39         if(!authlist_last)
  40                 authlist_first = auth
  41         authlist_last = auth;
  42
  43         auth_start_dnsreverse(auth);
  44
  45         return auth;
  46 }
  47
  48 void auth_start_dnsreverse(struct Auth *auth) {
  49         socket_printf(auth->conn, "NOTICE AUTH :*** Looking up your hostname");
  50
  51         struct IODNSAddress *sockaddr;
  52         sockaddr = iosocket_get_remote_addr(auth->conn->socket);
  53         if(sockaddr) {
  54                 auth->dnslookup = iodns_getnameinfo(sockaddr->address, sockaddr->addresslen, auth_dns_callback, auth);
  55         } else {
  56                 // critical error!
  57         }
  58 }
  59
  60 static IODNS_CALLBACK(auth_dns_callback) {
  61         struct Auth *auth = event->query->data;
  62         struct IODNSResult *dnsresult = event->result;
  63
  64         auth->dnslookup = NULL;
  65
  66         if(event->type == IODNSEVENT_SUCCESS) {
  67                 strncpy(auth->host, dnsresult->result.host, HOSTLEN);
  68                 socket_printf(auth->conn, "NOTICE AUTH :*** Found your hostname (%s)", auth->host);
  69         } else {
  70                 struct IODNSAddress *sockaddr = iosocket_get_remote_addr(auth->conn->socket);
  71                 if(sockaddr->addresslen == sizeof(struct sockaddr_in)) {
  72                         //ipv4
  73                         inet_ntop(AF_INET, (void *)(&((struct sockaddr_in *)sockaddr->address)->sin_addr), auth->host, HOSTLEN);
  74                 } else {
  75                         //ipv6
  76                         inet_ntop(AF_INET6, (void *)(&((struct sockaddr_in6 *)sockaddr->address)->sin6_addr), auth->host, HOSTLEN);
  77                 }
  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
  95                         auth->sent_ping = 1;
  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 }