[7161] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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[8858] | 23 | * Sandro 'smerkli' Merkli |
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[7161] | 24 | * Co-authors: |
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[8858] | 25 | * Oliver Scheuss (original) |
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[7161] | 26 | * |
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| 27 | */ |
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| 28 | |
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[7630] | 29 | #include "WANDiscovery.h" |
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[7161] | 30 | |
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| 31 | #include <enet/enet.h> |
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| 32 | #include <cstring> |
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| 33 | |
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| 34 | #include "core/CoreIncludes.h" |
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| 35 | |
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| 36 | |
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| 37 | namespace orxonox |
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[7284] | 38 | { |
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[10561] | 39 | RegisterAbstractClass(WANDiscovery).inheritsFrom<Configurable>(); |
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| 40 | |
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[7630] | 41 | WANDiscovery::WANDiscovery() |
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[7161] | 42 | { |
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[7737] | 43 | /* debugging output */ |
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[8858] | 44 | orxout(verbose, context::master_server) << "Creating WANDiscovery." << endl; |
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[7737] | 45 | |
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[7750] | 46 | /* register object in orxonox */ |
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[7737] | 47 | RegisterObject(WANDiscovery); |
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[7631] | 48 | |
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[7750] | 49 | /* check for the masterserver address option in orxonox.ini */ |
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[7737] | 50 | this->setConfigValues(); |
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| 51 | |
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[7631] | 52 | /* initialize it and see if it worked */ |
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| 53 | if( msc.initialize() ) |
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[8858] | 54 | orxout(internal_error, context::master_server) << "Could not initialize master server communications!" << endl; |
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[7631] | 55 | |
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| 56 | /* connect and see if it worked */ |
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[7744] | 57 | if( msc.connect( this->msaddress.c_str(), ORX_MSERVER_PORT ) ) |
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[8858] | 58 | orxout(internal_error, context::master_server) << "Could not connect to master server at " |
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| 59 | << this->msaddress << endl; |
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[7667] | 60 | |
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[7737] | 61 | /* debugging output */ |
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[8858] | 62 | orxout(verbose, context::master_server) << "Initialization of WANDiscovery complete." << endl; |
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[7161] | 63 | } |
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| 64 | |
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[7739] | 65 | void WANDiscovery::setConfigValues() |
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| 66 | { |
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[7750] | 67 | /* update msaddress string from orxonox.ini config file, if it |
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| 68 | * has changed. |
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| 69 | */ |
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[8327] | 70 | SetConfigValue( msaddress, "master.orxonox.net"); |
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[7739] | 71 | } |
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| 72 | |
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[7630] | 73 | WANDiscovery::~WANDiscovery() |
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[7631] | 74 | { |
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| 75 | /* clear server list */ |
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| 76 | this->servers_.clear(); |
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[7161] | 77 | } |
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[7284] | 78 | |
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[7631] | 79 | /* callback for the network reply poller */ |
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[8858] | 80 | int WANDiscovery::rhandler( char *addr, ENetEvent *ev ) |
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[7631] | 81 | { |
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[7657] | 82 | /* error recognition */ |
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| 83 | if( !ev || !ev->packet || !ev->packet->data ) |
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[8858] | 84 | { orxout(internal_warning, context::master_server) << "Bad arguments received in WANDiscovery's reply handler." << endl; |
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[7657] | 85 | return 0; |
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| 86 | } |
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| 87 | |
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[7650] | 88 | /* handle incoming data */ |
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| 89 | /* if a list entry arrives add to list */ |
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[7651] | 90 | if( !strncmp( (char*)ev->packet->data, MSPROTO_SERVERLIST_ITEM, |
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[7650] | 91 | MSPROTO_SERVERLIST_ITEM_LEN ) ) |
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| 92 | { |
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| 93 | /* create server structure from that item */ |
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[7651] | 94 | packet::ServerInformation toadd; |
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[7631] | 95 | |
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[7747] | 96 | /* fill in data, -1 for the index: index should be length -1 */ |
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[7651] | 97 | toadd.setServerName( std::string((char*)ev->packet->data + |
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[7749] | 98 | MSPROTO_SERVERLIST_ITEM_LEN+1) ); |
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[7651] | 99 | toadd.setServerIP( std::string((char*)ev->packet->data + |
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[7749] | 100 | MSPROTO_SERVERLIST_ITEM_LEN+1) ); |
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[7650] | 101 | |
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| 102 | /* add to list */ |
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[8858] | 103 | this->servers_.push_back( toadd ); |
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[7650] | 104 | } |
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[7651] | 105 | else if( !strncmp( (char*)ev->packet->data, MSPROTO_SERVERLIST_END, |
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[7650] | 106 | MSPROTO_SERVERLIST_END_LEN ) ) |
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[7672] | 107 | { |
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[7749] | 108 | /* this is the only case where 2 should be returned, |
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[7672] | 109 | * as 1 is used to signal that we're done receiving |
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| 110 | * the list |
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| 111 | */ |
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[7692] | 112 | return 2; |
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[7672] | 113 | } |
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[7650] | 114 | |
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[7631] | 115 | /* done handling, return all ok code 0 */ |
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[7692] | 116 | return 1; |
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[7631] | 117 | } |
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| 118 | |
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[7630] | 119 | void WANDiscovery::discover() |
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[7161] | 120 | { |
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[7631] | 121 | /* clear list */ |
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[7161] | 122 | this->servers_.clear(); |
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[7631] | 123 | |
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| 124 | /* send request to server */ |
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[7657] | 125 | this->msc.sendRequest( MSPROTO_CLIENT " " MSPROTO_REQ_LIST ); |
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[7631] | 126 | |
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[7672] | 127 | /* poll for replies */ |
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[7692] | 128 | int i = WANDISC_MAXTRIES; |
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| 129 | while( i > 0 ) |
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| 130 | { |
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| 131 | /* poll for reply and act according to what was received */ |
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[8858] | 132 | switch( this->msc.pollForReply( this, 500 ) ) |
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[7692] | 133 | { case 0: /* no event occured, decrease timeout */ |
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| 134 | --i; break; |
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| 135 | case 1: /* got a list element, continue */ |
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| 136 | break; |
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| 137 | case 2: /* done. */ |
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| 138 | i = 0; break; |
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| 139 | } |
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| 140 | } |
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[7630] | 141 | } |
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[7284] | 142 | |
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[7630] | 143 | std::string WANDiscovery::getServerListItemName(unsigned int index) |
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| 144 | { |
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[7631] | 145 | /* if the index is out of range, return empty */ |
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| 146 | if( index >= this->servers_.size() ) |
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| 147 | return BLANKSTRING; |
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| 148 | else |
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| 149 | /* else return the name of the server */ |
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| 150 | return this->servers_[index].getServerName(); |
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[7161] | 151 | } |
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[7284] | 152 | |
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[7630] | 153 | std::string WANDiscovery::getServerListItemIP(unsigned int index) |
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[7161] | 154 | { |
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[7631] | 155 | /* if the index is out of range, return empty */ |
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| 156 | if( index >= this->servers_.size() ) |
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| 157 | return BLANKSTRING; |
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| 158 | else |
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| 159 | /* else return the IP of the server */ |
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| 160 | return this->servers_[index].getServerIP(); |
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[7161] | 161 | } |
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[7284] | 162 | |
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| 163 | |
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[7161] | 164 | } // namespace orxonox |
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