src/remoteplayer.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2016 celeron55, Perttu Ahola <celeron55@gmail.com>
   4 Copyright (C) 2014-2016 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU Lesser General Public License as published by
   8 the Free Software Foundation; either version 2.1 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU Lesser General Public License for more details.
  15
  16 You should have received a copy of the GNU Lesser General Public License along
  17 with this program; if not, write to the Free Software Foundation, Inc.,
  18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 */
  20
  21 #include "remoteplayer.h"
  22 #include <json/json.h>
  23 #include "filesys.h"
  24 #include "gamedef.h"
  25 #include "porting.h"  // strlcpy
  26 #include "server.h"
  27 #include "settings.h"
  28 #include "convert_json.h"
  29 #include "server/player_sao.h"
  30
  31 /*
  32         RemotePlayer
  33 */
  34
  35 // static config cache for remoteplayer
  36 bool RemotePlayer::m_setting_cache_loaded = false;
  37 float RemotePlayer::m_setting_chat_message_limit_per_10sec = 0.0f;
  38 u16 RemotePlayer::m_setting_chat_message_limit_trigger_kick = 0;
  39
  40 RemotePlayer::RemotePlayer(const char *name, IItemDefManager *idef):
  41         Player(name, idef)
  42 {
  43         if (!RemotePlayer::m_setting_cache_loaded) {
  44                 RemotePlayer::m_setting_chat_message_limit_per_10sec =
  45                         g_settings->getFloat("chat_message_limit_per_10sec");
  46                 RemotePlayer::m_setting_chat_message_limit_trigger_kick =
  47                         g_settings->getU16("chat_message_limit_trigger_kick");
  48                 RemotePlayer::m_setting_cache_loaded = true;
  49         }
  50
  51         movement_acceleration_default   = g_settings->getFloat("movement_acceleration_default")   * BS;
  52         movement_acceleration_air       = g_settings->getFloat("movement_acceleration_air")       * BS;
  53         movement_acceleration_fast      = g_settings->getFloat("movement_acceleration_fast")      * BS;
  54         movement_speed_walk             = g_settings->getFloat("movement_speed_walk")             * BS;
  55         movement_speed_crouch           = g_settings->getFloat("movement_speed_crouch")           * BS;
  56         movement_speed_fast             = g_settings->getFloat("movement_speed_fast")             * BS;
  57         movement_speed_climb            = g_settings->getFloat("movement_speed_climb")            * BS;
  58         movement_speed_jump             = g_settings->getFloat("movement_speed_jump")             * BS;
  59         movement_liquid_fluidity        = g_settings->getFloat("movement_liquid_fluidity")        * BS;
  60         movement_liquid_fluidity_smooth = g_settings->getFloat("movement_liquid_fluidity_smooth") * BS;
  61         movement_liquid_sink            = g_settings->getFloat("movement_liquid_sink")            * BS;
  62         movement_gravity                = g_settings->getFloat("movement_gravity")                * BS;
  63
  64         // Skybox defaults:
  65         m_cloud_params  = SkyboxDefaults::getCloudDefaults();
  66         m_skybox_params = SkyboxDefaults::getSkyDefaults();
  67         m_sun_params    = SkyboxDefaults::getSunDefaults();
  68         m_moon_params   = SkyboxDefaults::getMoonDefaults();
  69         m_star_params   = SkyboxDefaults::getStarDefaults();
  70 }
  71
  72
  73 RemotePlayerChatResult RemotePlayer::canSendChatMessage()
  74 {
  75         // Rate limit messages
  76         u32 now = time(NULL);
  77         float time_passed = now - m_last_chat_message_sent;
  78         m_last_chat_message_sent = now;
  79
  80         // If this feature is disabled
  81         if (m_setting_chat_message_limit_per_10sec <= 0.0) {
  82                 return RPLAYER_CHATRESULT_OK;
  83         }
  84
  85         m_chat_message_allowance += time_passed * (m_setting_chat_message_limit_per_10sec / 8.0f);
  86         if (m_chat_message_allowance > m_setting_chat_message_limit_per_10sec) {
  87                 m_chat_message_allowance = m_setting_chat_message_limit_per_10sec;
  88         }
  89
  90         if (m_chat_message_allowance < 1.0f) {
  91                 infostream << "Player " << m_name
  92                                 << " chat limited due to excessive message amount." << std::endl;
  93
  94                 // Kick player if flooding is too intensive
  95                 m_message_rate_overhead++;
  96                 if (m_message_rate_overhead > RemotePlayer::m_setting_chat_message_limit_trigger_kick) {
  97                         return RPLAYER_CHATRESULT_KICK;
  98                 }
  99
 100                 return RPLAYER_CHATRESULT_FLOODING;
 101         }
 102
 103         // Reinit message overhead
 104         if (m_message_rate_overhead > 0) {
 105                 m_message_rate_overhead = 0;
 106         }
 107
 108         m_chat_message_allowance -= 1.0f;
 109         return RPLAYER_CHATRESULT_OK;
 110 }
 111
 112 void RemotePlayer::onSuccessfulSave()
 113 {
 114         setModified(false);
 115         if (m_sao)
 116                 m_sao->getMeta().setModified(false);
 117 }