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net/server_select.lua @ 2656:9fab59009397
net.server_event: Increase SSL handshake timeout to 30s, make handshake round-trip count configurable, and bump connect timeout to 20s (thanks Flo)
author | Matthew Wild <mwild1@gmail.com> |
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date | Wed, 17 Feb 2010 13:21:33 +0000 |
parent | 2598:8a021b304765 |
child | 2728:3f8d9319d4a3 |
child | 2996:b0515ed4d9d7 |
rev | line source |
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1 -- |
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2 -- server.lua by blastbeat of the luadch project |
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3 -- Re-used here under the MIT/X Consortium License |
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4 -- |
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5 -- Modifications (C) 2008-2009 Matthew Wild, Waqas Hussain |
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6 -- |
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7 |
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8 -- // wrapping luadch stuff // -- |
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9 |
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10 local use = function( what ) |
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11 return _G[ what ] |
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12 end |
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13 local clean = function( tbl ) |
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14 for i, k in pairs( tbl ) do |
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15 tbl[ i ] = nil |
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16 end |
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17 end |
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18 |
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19 local log, table_concat = require ("util.logger").init("socket"), table.concat; |
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20 local out_put = function (...) return log("debug", table_concat{...}); end |
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21 local out_error = function (...) return log("warn", table_concat{...}); end |
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22 local mem_free = collectgarbage |
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23 |
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24 ----------------------------------// DECLARATION //-- |
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25 |
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26 --// constants //-- |
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27 |
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28 local STAT_UNIT = 1 -- byte |
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29 |
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30 --// lua functions //-- |
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31 |
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32 local type = use "type" |
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33 local pairs = use "pairs" |
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34 local ipairs = use "ipairs" |
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35 local tostring = use "tostring" |
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36 local collectgarbage = use "collectgarbage" |
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37 |
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38 --// lua libs //-- |
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39 |
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40 local os = use "os" |
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41 local table = use "table" |
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42 local string = use "string" |
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43 local coroutine = use "coroutine" |
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44 |
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45 --// lua lib methods //-- |
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46 |
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47 local os_time = os.time |
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48 local os_difftime = os.difftime |
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49 local table_concat = table.concat |
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50 local table_remove = table.remove |
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51 local string_len = string.len |
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52 local string_sub = string.sub |
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53 local coroutine_wrap = coroutine.wrap |
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54 local coroutine_yield = coroutine.yield |
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55 |
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56 --// extern libs //-- |
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57 |
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58 local luasec = use "ssl" |
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59 local luasocket = use "socket" or require "socket" |
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60 |
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61 --// extern lib methods //-- |
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62 |
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63 local ssl_wrap = ( luasec and luasec.wrap ) |
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64 local socket_bind = luasocket.bind |
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65 local socket_sleep = luasocket.sleep |
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66 local socket_select = luasocket.select |
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67 local ssl_newcontext = ( luasec and luasec.newcontext ) |
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68 |
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69 --// functions //-- |
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70 |
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71 local id |
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72 local loop |
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73 local stats |
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74 local idfalse |
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75 local addtimer |
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76 local closeall |
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77 local addserver |
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78 local getserver |
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79 local wrapserver |
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80 local getsettings |
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81 local closesocket |
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82 local removesocket |
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83 local removeserver |
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84 local changetimeout |
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85 local wrapconnection |
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86 local changesettings |
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87 |
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88 --// tables //-- |
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89 |
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90 local _server |
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91 local _readlist |
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92 local _timerlist |
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93 local _sendlist |
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94 local _socketlist |
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95 local _closelist |
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96 local _readtimes |
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97 local _writetimes |
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98 |
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99 --// simple data types //-- |
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100 |
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101 local _ |
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102 local _readlistlen |
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103 local _sendlistlen |
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104 local _timerlistlen |
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105 |
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106 local _sendtraffic |
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107 local _readtraffic |
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108 |
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109 local _selecttimeout |
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110 local _sleeptime |
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111 |
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112 local _starttime |
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113 local _currenttime |
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114 |
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115 local _maxsendlen |
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116 local _maxreadlen |
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117 |
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118 local _checkinterval |
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119 local _sendtimeout |
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120 local _readtimeout |
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121 |
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122 local _cleanqueue |
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123 |
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124 local _timer |
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125 |
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126 local _maxclientsperserver |
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127 |
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128 ----------------------------------// DEFINITION //-- |
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129 |
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130 _server = { } -- key = port, value = table; list of listening servers |
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131 _readlist = { } -- array with sockets to read from |
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132 _sendlist = { } -- arrary with sockets to write to |
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133 _timerlist = { } -- array of timer functions |
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134 _socketlist = { } -- key = socket, value = wrapped socket (handlers) |
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135 _readtimes = { } -- key = handler, value = timestamp of last data reading |
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136 _writetimes = { } -- key = handler, value = timestamp of last data writing/sending |
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137 _closelist = { } -- handlers to close |
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138 |
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139 _readlistlen = 0 -- length of readlist |
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140 _sendlistlen = 0 -- length of sendlist |
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141 _timerlistlen = 0 -- lenght of timerlist |
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142 |
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143 _sendtraffic = 0 -- some stats |
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144 _readtraffic = 0 |
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145 |
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146 _selecttimeout = 1 -- timeout of socket.select |
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147 _sleeptime = 0 -- time to wait at the end of every loop |
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148 |
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149 _maxsendlen = 51000 * 1024 -- max len of send buffer |
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150 _maxreadlen = 25000 * 1024 -- max len of read buffer |
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151 |
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152 _checkinterval = 1200000 -- interval in secs to check idle clients |
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153 _sendtimeout = 60000 -- allowed send idle time in secs |
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154 _readtimeout = 6 * 60 * 60 -- allowed read idle time in secs |
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155 |
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156 _cleanqueue = false -- clean bufferqueue after using |
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157 |
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158 _maxclientsperserver = 1000 |
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159 |
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160 _maxsslhandshake = 30 -- max handshake round-trips |
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161 |
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162 ----------------------------------// PRIVATE //-- |
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163 |
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164 wrapserver = function( listeners, socket, ip, serverport, pattern, sslctx, maxconnections ) -- this function wraps a server |
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165 |
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166 maxconnections = maxconnections or _maxclientsperserver |
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167 |
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168 local connections = 0 |
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169 |
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170 local dispatch, disconnect = listeners.onincoming, listeners.ondisconnect |
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171 |
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172 local accept = socket.accept |
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173 |
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174 --// public methods of the object //-- |
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175 |
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176 local handler = { } |
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177 |
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178 handler.shutdown = function( ) end |
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179 |
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180 handler.ssl = function( ) |
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181 return sslctx ~= nil |
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182 end |
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183 handler.sslctx = function( ) |
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184 return sslctx |
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185 end |
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186 handler.remove = function( ) |
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187 connections = connections - 1 |
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188 end |
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189 handler.close = function( ) |
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190 for _, handler in pairs( _socketlist ) do |
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191 if handler.serverport == serverport then |
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192 handler.disconnect( handler, "server closed" ) |
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193 handler:close( true ) |
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194 end |
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195 end |
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196 socket:close( ) |
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197 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
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198 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
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199 _socketlist[ socket ] = nil |
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200 handler = nil |
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201 socket = nil |
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202 --mem_free( ) |
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203 out_put "server.lua: closed server handler and removed sockets from list" |
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204 end |
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205 handler.ip = function( ) |
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206 return ip |
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207 end |
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208 handler.serverport = function( ) |
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209 return serverport |
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210 end |
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211 handler.socket = function( ) |
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212 return socket |
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213 end |
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214 handler.readbuffer = function( ) |
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215 if connections > maxconnections then |
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216 out_put( "server.lua: refused new client connection: server full" ) |
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217 return false |
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218 end |
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219 local client, err = accept( socket ) -- try to accept |
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220 if client then |
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221 local ip, clientport = client:getpeername( ) |
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222 client:settimeout( 0 ) |
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223 local handler, client, err = wrapconnection( handler, listeners, client, ip, serverport, clientport, pattern, sslctx ) -- wrap new client socket |
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224 if err then -- error while wrapping ssl socket |
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225 return false |
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226 end |
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227 connections = connections + 1 |
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228 out_put( "server.lua: accepted new client connection from ", tostring(ip), ":", tostring(clientport), " to ", tostring(serverport)) |
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229 return dispatch( handler ) |
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230 elseif err then -- maybe timeout or something else |
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231 out_put( "server.lua: error with new client connection: ", tostring(err) ) |
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232 return false |
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233 end |
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234 end |
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235 return handler |
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236 end |
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237 |
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238 wrapconnection = function( server, listeners, socket, ip, serverport, clientport, pattern, sslctx ) -- this function wraps a client to a handler object |
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239 |
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240 socket:settimeout( 0 ) |
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241 |
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242 --// local import of socket methods //-- |
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243 |
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244 local send |
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245 local receive |
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246 local shutdown |
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247 |
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248 --// private closures of the object //-- |
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249 |
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250 local ssl |
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251 |
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252 local dispatch = listeners.onincoming |
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253 local status = listeners.onstatus |
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254 local disconnect = listeners.ondisconnect |
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255 |
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256 local bufferqueue = { } -- buffer array |
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257 local bufferqueuelen = 0 -- end of buffer array |
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258 |
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259 local toclose |
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260 local fatalerror |
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261 local needtls |
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262 |
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263 local bufferlen = 0 |
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264 |
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265 local noread = false |
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266 local nosend = false |
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267 |
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268 local sendtraffic, readtraffic = 0, 0 |
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269 |
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270 local maxsendlen = _maxsendlen |
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271 local maxreadlen = _maxreadlen |
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272 |
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273 --// public methods of the object //-- |
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274 |
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275 local handler = bufferqueue -- saves a table ^_^ |
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276 |
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277 handler.dispatch = function( ) |
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278 return dispatch |
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279 end |
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280 handler.disconnect = function( ) |
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281 return disconnect |
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282 end |
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283 handler.setlistener = function( self, listeners ) |
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284 dispatch = listeners.onincoming |
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285 disconnect = listeners.ondisconnect |
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286 status = listeners.onstatus |
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287 end |
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288 handler.getstats = function( ) |
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289 return readtraffic, sendtraffic |
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290 end |
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291 handler.ssl = function( ) |
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292 return ssl |
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293 end |
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294 handler.sslctx = function ( ) |
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295 return sslctx |
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296 end |
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297 handler.send = function( _, data, i, j ) |
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298 return send( socket, data, i, j ) |
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299 end |
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300 handler.receive = function( pattern, prefix ) |
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301 return receive( socket, pattern, prefix ) |
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302 end |
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303 handler.shutdown = function( pattern ) |
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304 return shutdown( socket, pattern ) |
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305 end |
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306 handler.setoption = function (self, option, value) |
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307 if socket.setoption then |
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308 return socket:setoption(option, value); |
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309 end |
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310 return false, "setoption not implemented"; |
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311 end |
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312 handler.close = function( self, forced ) |
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313 if not handler then return true; end |
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314 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
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315 _readtimes[ handler ] = nil |
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316 if bufferqueuelen ~= 0 then |
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317 if not ( forced or fatalerror ) then |
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318 handler.sendbuffer( ) |
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319 if bufferqueuelen ~= 0 then -- try again... |
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320 if handler then |
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321 handler.write = nil -- ... but no further writing allowed |
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322 end |
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323 toclose = true |
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324 return false |
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325 end |
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326 else |
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327 send( socket, table_concat( bufferqueue, "", 1, bufferqueuelen ), 1, bufferlen ) -- forced send |
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328 end |
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329 end |
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330 if socket then |
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331 _ = shutdown and shutdown( socket ) |
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332 socket:close( ) |
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333 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
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334 _socketlist[ socket ] = nil |
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335 socket = nil |
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336 else |
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337 out_put "server.lua: socket already closed" |
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338 end |
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339 if handler then |
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340 _writetimes[ handler ] = nil |
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341 _closelist[ handler ] = nil |
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342 handler = nil |
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343 end |
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344 if server then |
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345 server.remove( ) |
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346 end |
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347 out_put "server.lua: closed client handler and removed socket from list" |
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348 return true |
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349 end |
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350 handler.ip = function( ) |
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351 return ip |
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352 end |
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353 handler.serverport = function( ) |
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354 return serverport |
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355 end |
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356 handler.clientport = function( ) |
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357 return clientport |
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358 end |
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359 local write = function( self, data ) |
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360 bufferlen = bufferlen + string_len( data ) |
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361 if bufferlen > maxsendlen then |
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362 _closelist[ handler ] = "send buffer exceeded" -- cannot close the client at the moment, have to wait to the end of the cycle |
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363 handler.write = idfalse -- dont write anymore |
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364 return false |
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365 elseif socket and not _sendlist[ socket ] then |
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366 _sendlistlen = addsocket(_sendlist, socket, _sendlistlen) |
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367 end |
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368 bufferqueuelen = bufferqueuelen + 1 |
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369 bufferqueue[ bufferqueuelen ] = data |
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370 if handler then |
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371 _writetimes[ handler ] = _writetimes[ handler ] or _currenttime |
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372 end |
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373 return true |
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374 end |
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375 handler.write = write |
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376 handler.bufferqueue = function( self ) |
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377 return bufferqueue |
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378 end |
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379 handler.socket = function( self ) |
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380 return socket |
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381 end |
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382 handler.pattern = function( self, new ) |
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383 pattern = new or pattern |
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384 return pattern |
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385 end |
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386 handler.set_send = function ( self, newsend ) |
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387 send = newsend or send |
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388 return send |
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389 end |
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390 handler.bufferlen = function( self, readlen, sendlen ) |
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391 maxsendlen = sendlen or maxsendlen |
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392 maxreadlen = readlen or maxreadlen |
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393 return bufferlen, maxreadlen, maxsendlen |
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394 end |
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395 handler.lock_read = function (self, switch) |
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396 if switch == true then |
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397 local tmp = _readlistlen |
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398 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
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399 _readtimes[ handler ] = nil |
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400 if _readlistlen ~= tmp then |
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401 noread = true |
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402 end |
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403 elseif switch == false then |
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404 if noread then |
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405 noread = false |
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406 _readlistlen = addsocket(_readlist, socket, _readlistlen) |
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407 _readtimes[ handler ] = _currenttime |
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408 end |
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409 end |
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410 return noread |
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411 end |
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412 handler.lock = function( self, switch ) |
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413 handler.lock_read (switch) |
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414 if switch == true then |
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415 handler.write = idfalse |
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416 local tmp = _sendlistlen |
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417 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
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418 _writetimes[ handler ] = nil |
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419 if _sendlistlen ~= tmp then |
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420 nosend = true |
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421 end |
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422 elseif switch == false then |
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423 handler.write = write |
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424 if nosend then |
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425 nosend = false |
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426 write( "" ) |
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427 end |
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428 end |
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429 return noread, nosend |
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430 end |
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431 local _readbuffer = function( ) -- this function reads data |
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432 local buffer, err, part = receive( socket, pattern ) -- receive buffer with "pattern" |
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433 if not err or (err == "wantread" or err == "timeout") or string_len(part) > 0 then -- received something |
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434 local buffer = buffer or part or "" |
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435 local len = string_len( buffer ) |
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436 if len > maxreadlen then |
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437 disconnect( handler, "receive buffer exceeded" ) |
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438 handler.close( true ) |
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439 return false |
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440 end |
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441 local count = len * STAT_UNIT |
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442 readtraffic = readtraffic + count |
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443 _readtraffic = _readtraffic + count |
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444 _readtimes[ handler ] = _currenttime |
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445 --out_put( "server.lua: read data '", buffer:gsub("[^%w%p ]", "."), "', error: ", err ) |
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446 return dispatch( handler, buffer, err ) |
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447 else -- connections was closed or fatal error |
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448 out_put( "server.lua: client ", tostring(ip), ":", tostring(clientport), " read error: ", tostring(err) ) |
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449 fatalerror = true |
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450 disconnect( handler, err ) |
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451 _ = handler and handler.close( ) |
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452 return false |
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453 end |
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454 end |
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455 local _sendbuffer = function( ) -- this function sends data |
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456 local succ, err, byte, buffer, count; |
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457 local count; |
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458 if socket then |
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459 buffer = table_concat( bufferqueue, "", 1, bufferqueuelen ) |
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460 succ, err, byte = send( socket, buffer, 1, bufferlen ) |
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461 count = ( succ or byte or 0 ) * STAT_UNIT |
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462 sendtraffic = sendtraffic + count |
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463 _sendtraffic = _sendtraffic + count |
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464 _ = _cleanqueue and clean( bufferqueue ) |
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465 --out_put( "server.lua: sended '", buffer, "', bytes: ", tostring(succ), ", error: ", tostring(err), ", part: ", tostring(byte), ", to: ", tostring(ip), ":", tostring(clientport) ) |
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466 else |
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467 succ, err, count = false, "closed", 0; |
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468 end |
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469 if succ then -- sending succesful |
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470 bufferqueuelen = 0 |
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471 bufferlen = 0 |
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472 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) -- delete socket from writelist |
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473 _ = needtls and handler:starttls(nil, true) |
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474 _writetimes[ handler ] = nil |
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475 _ = toclose and handler.close( ) |
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476 return true |
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477 elseif byte and ( err == "timeout" or err == "wantwrite" ) then -- want write |
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478 buffer = string_sub( buffer, byte + 1, bufferlen ) -- new buffer |
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479 bufferqueue[ 1 ] = buffer -- insert new buffer in queue |
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480 bufferqueuelen = 1 |
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481 bufferlen = bufferlen - byte |
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482 _writetimes[ handler ] = _currenttime |
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483 return true |
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484 else -- connection was closed during sending or fatal error |
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485 out_put( "server.lua: client ", tostring(ip), ":", tostring(clientport), " write error: ", tostring(err) ) |
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486 fatalerror = true |
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487 disconnect( handler, err ) |
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488 _ = handler and handler.close( ) |
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489 return false |
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490 end |
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491 end |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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492 |
2581
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493 -- Set the sslctx |
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494 local handshake; |
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495 function handler.set_sslctx(self, new_sslctx) |
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496 ssl = true |
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497 sslctx = new_sslctx; |
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498 local wrote |
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499 local read |
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500 handshake = coroutine_wrap( function( client ) -- create handshake coroutine |
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501 local err |
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502 for i = 1, _maxsslhandshake do |
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503 _sendlistlen = ( wrote and removesocket( _sendlist, client, _sendlistlen ) ) or _sendlistlen |
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504 _readlistlen = ( read and removesocket( _readlist, client, _readlistlen ) ) or _readlistlen |
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505 read, wrote = nil, nil |
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506 _, err = client:dohandshake( ) |
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507 if not err then |
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508 out_put( "server.lua: ssl handshake done" ) |
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509 handler.readbuffer = _readbuffer -- when handshake is done, replace the handshake function with regular functions |
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510 handler.sendbuffer = _sendbuffer |
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511 _ = status and status( handler, "ssl-handshake-complete" ) |
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512 _readlistlen = addsocket(_readlist, client, _readlistlen) |
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513 return true |
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514 else |
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515 out_put( "server.lua: error during ssl handshake: ", tostring(err) ) |
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516 if err == "wantwrite" and not wrote then |
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517 _sendlistlen = addsocket(_sendlist, client, _sendlistlen) |
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518 wrote = true |
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519 elseif err == "wantread" and not read then |
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520 _readlistlen = addsocket(_readlist, client, _readlistlen) |
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521 read = true |
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522 else |
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523 break; |
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|
524 end |
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|
525 --coroutine_yield( handler, nil, err ) -- handshake not finished |
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526 coroutine_yield( ) |
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|
527 end |
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528 end |
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changeset
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529 disconnect( handler, "ssl handshake failed" ) |
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530 _ = handler and handler:close( true ) -- forced disconnect |
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changeset
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531 return false -- handshake failed |
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|
532 end |
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|
533 ) |
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534 end |
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535 if luasec then |
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536 if sslctx then -- ssl? |
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537 handler:set_sslctx(sslctx); |
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538 out_put("server.lua: ", "starting ssl handshake") |
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539 local err |
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540 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket |
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541 if err then |
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542 out_put( "server.lua: ssl error: ", tostring(err) ) |
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543 --mem_free( ) |
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544 return nil, nil, err -- fatal error |
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545 end |
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changeset
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546 socket:settimeout( 0 ) |
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547 handler.readbuffer = handshake |
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548 handler.sendbuffer = handshake |
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549 handshake( socket ) -- do handshake |
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550 if not socket then |
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551 return nil, nil, "ssl handshake failed"; |
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552 end |
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553 else |
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554 local sslctx; |
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555 handler.starttls = function( self, _sslctx, now ) |
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556 if _sslctx then |
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557 sslctx = _sslctx; |
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558 handler:set_sslctx(sslctx); |
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559 end |
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560 if not now then |
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561 out_put "server.lua: we need to do tls, but delaying until later" |
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562 needtls = true |
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563 return |
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564 end |
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565 out_put( "server.lua: attempting to start tls on " .. tostring( socket ) ) |
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566 local oldsocket, err = socket |
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567 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket |
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568 --out_put( "server.lua: sslwrapped socket is " .. tostring( socket ) ) |
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569 if err then |
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570 out_put( "server.lua: error while starting tls on client: ", tostring(err) ) |
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571 return nil, err -- fatal error |
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572 end |
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573 |
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|
574 socket:settimeout( 0 ) |
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575 |
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576 -- add the new socket to our system |
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577 |
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578 send = socket.send |
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|
579 receive = socket.receive |
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580 shutdown = id |
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|
581 |
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|
582 _socketlist[ socket ] = handler |
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|
583 _readlistlen = addsocket(_readlist, socket, _readlistlen) |
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|
584 |
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|
585 -- remove traces of the old socket |
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|
586 |
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|
587 _readlistlen = removesocket( _readlist, oldsocket, _readlistlen ) |
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588 _sendlistlen = removesocket( _sendlist, oldsocket, _sendlistlen ) |
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|
589 _socketlist[ oldsocket ] = nil |
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|
590 |
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|
591 handler.starttls = nil |
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|
592 needtls = nil |
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|
593 |
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|
594 -- Secure now |
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|
595 ssl = true |
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|
596 |
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|
597 handler.readbuffer = handshake |
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|
598 handler.sendbuffer = handshake |
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|
599 handshake( socket ) -- do handshake |
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600 end |
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|
601 handler.readbuffer = _readbuffer |
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changeset
|
602 handler.sendbuffer = _sendbuffer |
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|
603 end |
2597
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|
604 else |
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changeset
|
605 handler.readbuffer = _readbuffer |
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changeset
|
606 handler.sendbuffer = _sendbuffer |
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|
607 end |
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|
608 send = socket.send |
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|
609 receive = socket.receive |
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|
610 shutdown = ( ssl and id ) or socket.shutdown |
2318
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changeset
|
611 |
2581
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|
612 _socketlist[ socket ] = handler |
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|
613 _readlistlen = addsocket(_readlist, socket, _readlistlen) |
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|
614 |
2581
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|
615 return handler, socket |
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|
616 end |
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changeset
|
617 |
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changeset
|
618 id = function( ) |
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changeset
|
619 end |
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|
620 |
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changeset
|
621 idfalse = function( ) |
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622 return false |
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623 end |
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624 |
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625 addsocket = function( list, socket, len ) |
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626 if not list[ socket ] then |
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627 len = len + 1 |
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628 list[ len ] = socket |
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|
629 list[ socket ] = len |
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630 end |
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631 return len; |
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632 end |
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633 |
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634 removesocket = function( list, socket, len ) -- this function removes sockets from a list ( copied from copas ) |
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635 local pos = list[ socket ] |
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636 if pos then |
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changeset
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637 list[ socket ] = nil |
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changeset
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638 local last = list[ len ] |
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639 list[ len ] = nil |
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|
640 if last ~= socket then |
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641 list[ last ] = pos |
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642 list[ pos ] = last |
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643 end |
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|
644 return len - 1 |
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645 end |
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646 return len |
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|
647 end |
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648 |
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649 closesocket = function( socket ) |
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650 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
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651 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
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652 _socketlist[ socket ] = nil |
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653 socket:close( ) |
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654 --mem_free( ) |
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655 end |
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656 |
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657 ----------------------------------// PUBLIC //-- |
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658 |
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659 addserver = function( addr, port, listeners, pattern, sslctx ) -- this function provides a way for other scripts to reg a server |
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660 local err |
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661 if type( listeners ) ~= "table" then |
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662 err = "invalid listener table" |
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663 end |
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664 if not type( port ) == "number" or not ( port >= 0 and port <= 65535 ) then |
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665 err = "invalid port" |
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666 elseif _server[ port ] then |
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667 err = "listeners on port '" .. port .. "' already exist" |
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668 elseif sslctx and not luasec then |
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669 err = "luasec not found" |
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670 end |
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671 if err then |
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672 out_error( "server.lua, port ", port, ": ", err ) |
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673 return nil, err |
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674 end |
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675 addr = addr or "*" |
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676 local server, err = socket_bind( addr, port ) |
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|
677 if err then |
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|
678 out_error( "server.lua, port ", port, ": ", err ) |
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|
679 return nil, err |
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680 end |
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681 local handler, err = wrapserver( listeners, server, addr, port, pattern, sslctx, _maxclientsperserver ) -- wrap new server socket |
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682 if not handler then |
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683 server:close( ) |
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684 return nil, err |
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|
685 end |
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686 server:settimeout( 0 ) |
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687 _readlistlen = addsocket(_readlist, server, _readlistlen) |
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688 _server[ port ] = handler |
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689 _socketlist[ server ] = handler |
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|
690 out_put( "server.lua: new "..(sslctx and "ssl " or "").."server listener on '", addr, ":", port, "'" ) |
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|
691 return handler |
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692 end |
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|
693 |
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694 getserver = function ( port ) |
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695 return _server[ port ]; |
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696 end |
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697 |
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698 removeserver = function( port ) |
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699 local handler = _server[ port ] |
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|
700 if not handler then |
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701 return nil, "no server found on port '" .. tostring( port ) .. "'" |
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702 end |
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703 handler:close( ) |
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704 _server[ port ] = nil |
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|
705 return true |
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706 end |
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|
707 |
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|
708 closeall = function( ) |
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|
709 for _, handler in pairs( _socketlist ) do |
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|
710 handler:close( ) |
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|
711 _socketlist[ _ ] = nil |
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|
712 end |
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|
713 _readlistlen = 0 |
1b9f424e695e
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|
714 _sendlistlen = 0 |
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|
715 _timerlistlen = 0 |
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716 _server = { } |
1b9f424e695e
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717 _readlist = { } |
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718 _sendlist = { } |
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|
719 _timerlist = { } |
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|
720 _socketlist = { } |
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|
721 --mem_free( ) |
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722 end |
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|
723 |
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|
724 getsettings = function( ) |
2581
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diff
changeset
|
725 return _selecttimeout, _sleeptime, _maxsendlen, _maxreadlen, _checkinterval, _sendtimeout, _readtimeout, _cleanqueue, _maxclientsperserver, _maxsslhandshake |
2318
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diff
changeset
|
726 end |
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|
727 |
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changeset
|
728 changesettings = function( new ) |
2581
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parents:
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diff
changeset
|
729 if type( new ) ~= "table" then |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
Matthew Wild <mwild1@gmail.com>
parents:
2559
diff
changeset
|
730 return nil, "invalid settings table" |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
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diff
changeset
|
731 end |
1b9f424e695e
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parents:
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diff
changeset
|
732 _selecttimeout = tonumber( new.timeout ) or _selecttimeout |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
733 _sleeptime = tonumber( new.sleeptime ) or _sleeptime |
1b9f424e695e
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parents:
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diff
changeset
|
734 _maxsendlen = tonumber( new.maxsendlen ) or _maxsendlen |
1b9f424e695e
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diff
changeset
|
735 _maxreadlen = tonumber( new.maxreadlen ) or _maxreadlen |
1b9f424e695e
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parents:
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diff
changeset
|
736 _checkinterval = tonumber( new.checkinterval ) or _checkinterval |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
2559
diff
changeset
|
737 _sendtimeout = tonumber( new.sendtimeout ) or _sendtimeout |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
738 _readtimeout = tonumber( new.readtimeout ) or _readtimeout |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
739 _cleanqueue = new.cleanqueue |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
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diff
changeset
|
740 _maxclientsperserver = new._maxclientsperserver or _maxclientsperserver |
1b9f424e695e
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parents:
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diff
changeset
|
741 _maxsslhandshake = new._maxsslhandshake or _maxsslhandshake |
1b9f424e695e
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parents:
2559
diff
changeset
|
742 return true |
2318
a831de056de3
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changeset
|
743 end |
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changeset
|
744 |
a831de056de3
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diff
changeset
|
745 addtimer = function( listener ) |
2581
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parents:
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diff
changeset
|
746 if type( listener ) ~= "function" then |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
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diff
changeset
|
747 return nil, "invalid listener function" |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
748 end |
1b9f424e695e
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diff
changeset
|
749 _timerlistlen = _timerlistlen + 1 |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
2559
diff
changeset
|
750 _timerlist[ _timerlistlen ] = listener |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
Matthew Wild <mwild1@gmail.com>
parents:
2559
diff
changeset
|
751 return true |
2318
a831de056de3
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diff
changeset
|
752 end |
a831de056de3
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diff
changeset
|
753 |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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diff
changeset
|
754 stats = function( ) |
2581
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parents:
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diff
changeset
|
755 return _readtraffic, _sendtraffic, _readlistlen, _sendlistlen, _timerlistlen |
2318
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diff
changeset
|
756 end |
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diff
changeset
|
757 |
a831de056de3
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diff
changeset
|
758 local dontstop = true; -- thinking about tomorrow, ... |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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diff
changeset
|
759 |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
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diff
changeset
|
760 setquitting = function (quit) |
a831de056de3
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parents:
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diff
changeset
|
761 dontstop = not quit; |
a831de056de3
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parents:
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diff
changeset
|
762 return; |
a831de056de3
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diff
changeset
|
763 end |
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Matthew Wild <mwild1@gmail.com>
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diff
changeset
|
764 |
2581
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diff
changeset
|
765 loop = function( ) -- this is the main loop of the program |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
Matthew Wild <mwild1@gmail.com>
parents:
2559
diff
changeset
|
766 while dontstop do |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
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diff
changeset
|
767 local read, write, err = socket_select( _readlist, _sendlist, _selecttimeout ) |
1b9f424e695e
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diff
changeset
|
768 for i, socket in ipairs( write ) do -- send data waiting in writequeues |
1b9f424e695e
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2559
diff
changeset
|
769 local handler = _socketlist[ socket ] |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
2559
diff
changeset
|
770 if handler then |
1b9f424e695e
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Matthew Wild <mwild1@gmail.com>
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diff
changeset
|
771 handler.sendbuffer( ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
772 else |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
Matthew Wild <mwild1@gmail.com>
parents:
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diff
changeset
|
773 closesocket( socket ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
2559
diff
changeset
|
774 out_put "server.lua: found no handler and closed socket (writelist)" -- this should not happen |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
775 end |
1b9f424e695e
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parents:
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diff
changeset
|
776 end |
1b9f424e695e
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parents:
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diff
changeset
|
777 for i, socket in ipairs( read ) do -- receive data |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
Matthew Wild <mwild1@gmail.com>
parents:
2559
diff
changeset
|
778 local handler = _socketlist[ socket ] |
1b9f424e695e
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Matthew Wild <mwild1@gmail.com>
parents:
2559
diff
changeset
|
779 if handler then |
1b9f424e695e
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2559
diff
changeset
|
780 handler.readbuffer( ) |
1b9f424e695e
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parents:
2559
diff
changeset
|
781 else |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
2559
diff
changeset
|
782 closesocket( socket ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
783 out_put "server.lua: found no handler and closed socket (readlist)" -- this can happen |
1b9f424e695e
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diff
changeset
|
784 end |
1b9f424e695e
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changeset
|
785 end |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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parents:
2559
diff
changeset
|
786 for handler, err in pairs( _closelist ) do |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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2559
diff
changeset
|
787 handler.disconnect( )( handler, err ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
788 handler:close( true ) -- forced disconnect |
1b9f424e695e
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changeset
|
789 end |
1b9f424e695e
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diff
changeset
|
790 clean( _closelist ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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2559
diff
changeset
|
791 _currenttime = os_time( ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
Matthew Wild <mwild1@gmail.com>
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2559
diff
changeset
|
792 if os_difftime( _currenttime - _timer ) >= 1 then |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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2559
diff
changeset
|
793 for i = 1, _timerlistlen do |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
794 _timerlist[ i ]( _currenttime ) -- fire timers |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
795 end |
1b9f424e695e
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parents:
2559
diff
changeset
|
796 _timer = _currenttime |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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2559
diff
changeset
|
797 end |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
798 socket_sleep( _sleeptime ) -- wait some time |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
799 --collectgarbage( ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
800 end |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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2559
diff
changeset
|
801 return "quitting" |
2318
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changeset
|
802 end |
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diff
changeset
|
803 |
2339
b04014f42fce
net.server_select: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2318
diff
changeset
|
804 local function get_backend() |
b04014f42fce
net.server_select: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2318
diff
changeset
|
805 return "select"; |
b04014f42fce
net.server_select: Add get_backend() method
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2318
diff
changeset
|
806 end |
b04014f42fce
net.server_select: Add get_backend() method
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2318
diff
changeset
|
807 |
2318
a831de056de3
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diff
changeset
|
808 --// EXPERIMENTAL //-- |
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changeset
|
809 |
2541
2febd008214e
net.server_select: Remove startssl parameter to the client/server creation functions - passing a sslctx now indicates you want to use SSL from the start
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parents:
2478
diff
changeset
|
810 local wrapclient = function( socket, ip, serverport, listeners, pattern, sslctx ) |
2581
1b9f424e695e
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diff
changeset
|
811 local handler = wrapconnection( nil, listeners, socket, ip, serverport, "clientport", pattern, sslctx ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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changeset
|
812 _socketlist[ socket ] = handler |
1b9f424e695e
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changeset
|
813 _sendlistlen = addsocket(_sendlist, socket, _sendlistlen) |
1b9f424e695e
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changeset
|
814 return handler, socket |
2318
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|
815 end |
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changeset
|
816 |
2541
2febd008214e
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2478
diff
changeset
|
817 local addclient = function( address, port, listeners, pattern, sslctx ) |
2581
1b9f424e695e
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changeset
|
818 local client, err = luasocket.tcp( ) |
1b9f424e695e
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changeset
|
819 if err then |
1b9f424e695e
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changeset
|
820 return nil, err |
1b9f424e695e
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changeset
|
821 end |
1b9f424e695e
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changeset
|
822 client:settimeout( 0 ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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changeset
|
823 _, err = client:connect( address, port ) |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
824 if err then -- try again |
1b9f424e695e
net.server_select: *Major* whitespace refactoring to meet Prosody's coding style guidelines, we now have tabs
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diff
changeset
|
825 local handler = wrapclient( client, address, port, listeners ) |
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826 else |
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827 wrapconnection( nil, listeners, client, address, port, "clientport", pattern, sslctx ) |
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828 end |
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829 end |
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830 |
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831 --// EXPERIMENTAL //-- |
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832 |
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833 ----------------------------------// BEGIN //-- |
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834 |
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835 use "setmetatable" ( _socketlist, { __mode = "k" } ) |
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836 use "setmetatable" ( _readtimes, { __mode = "k" } ) |
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837 use "setmetatable" ( _writetimes, { __mode = "k" } ) |
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838 |
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839 _timer = os_time( ) |
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840 _starttime = os_time( ) |
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841 |
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842 addtimer( function( ) |
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843 local difftime = os_difftime( _currenttime - _starttime ) |
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844 if difftime > _checkinterval then |
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845 _starttime = _currenttime |
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846 for handler, timestamp in pairs( _writetimes ) do |
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847 if os_difftime( _currenttime - timestamp ) > _sendtimeout then |
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848 --_writetimes[ handler ] = nil |
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849 handler.disconnect( )( handler, "send timeout" ) |
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850 handler:close( true ) -- forced disconnect |
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851 end |
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852 end |
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853 for handler, timestamp in pairs( _readtimes ) do |
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854 if os_difftime( _currenttime - timestamp ) > _readtimeout then |
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855 --_readtimes[ handler ] = nil |
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856 handler.disconnect( )( handler, "read timeout" ) |
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857 handler:close( ) -- forced disconnect? |
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858 end |
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859 end |
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860 end |
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861 end |
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862 ) |
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863 |
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864 local function setlogger(new_logger) |
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865 local old_logger = log; |
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866 if new_logger then |
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867 log = new_logger; |
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868 end |
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869 return old_logger; |
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870 end |
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871 |
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872 ----------------------------------// PUBLIC INTERFACE //-- |
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873 |
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874 return { |
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875 |
2581
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876 addclient = addclient, |
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877 wrapclient = wrapclient, |
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878 |
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879 loop = loop, |
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880 stats = stats, |
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881 closeall = closeall, |
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882 addtimer = addtimer, |
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883 addserver = addserver, |
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884 getserver = getserver, |
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885 setlogger = setlogger, |
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886 getsettings = getsettings, |
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887 setquitting = setquitting, |
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888 removeserver = removeserver, |
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889 get_backend = get_backend, |
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890 changesettings = changesettings, |
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891 } |