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net/server_event.lua @ 6905:0e81e3dab896
Merge 0.10->trunk
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 11 Oct 2015 20:03:00 +0200 |
parent | 6862:7a81fb23de5d |
child | 6929:03bc9e197fcc |
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1 --[[ |
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2 |
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3 |
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4 server.lua based on lua/libevent by blastbeat |
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5 |
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6 notes: |
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7 -- when using luaevent, never register 2 or more EV_READ at one socket, same for EV_WRITE |
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8 -- you cant even register a new EV_READ/EV_WRITE callback inside another one |
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9 -- to do some of the above, use timeout events or something what will called from outside |
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10 -- dont let garbagecollect eventcallbacks, as long they are running |
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11 -- when using luasec, there are 4 cases of timeout errors: wantread or wantwrite during reading or writing |
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12 |
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13 --]] |
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14 -- luacheck: ignore 212/self 431/err 211/ret |
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15 |
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16 local SCRIPT_NAME = "server_event.lua" |
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17 local SCRIPT_VERSION = "0.05" |
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18 local SCRIPT_AUTHOR = "blastbeat" |
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19 local LAST_MODIFIED = "2009/11/20" |
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20 |
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21 local cfg = { |
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22 MAX_CONNECTIONS = 100000, -- max per server connections (use "ulimit -n" on *nix) |
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23 MAX_HANDSHAKE_ATTEMPTS= 1000, -- attempts to finish ssl handshake |
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24 HANDSHAKE_TIMEOUT = 60, -- timeout in seconds per handshake attempt |
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25 MAX_READ_LENGTH = 1024 * 1024 * 1024 * 1024, -- max bytes allowed to read from sockets |
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26 MAX_SEND_LENGTH = 1024 * 1024 * 1024 * 1024, -- max bytes size of write buffer (for writing on sockets) |
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27 ACCEPT_QUEUE = 128, -- might influence the length of the pending sockets queue |
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28 ACCEPT_DELAY = 10, -- seconds to wait until the next attempt of a full server to accept |
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29 READ_TIMEOUT = 60 * 60 * 6, -- timeout in seconds for read data from socket |
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30 WRITE_TIMEOUT = 180, -- timeout in seconds for write data on socket |
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31 CONNECT_TIMEOUT = 20, -- timeout in seconds for connection attempts |
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32 CLEAR_DELAY = 5, -- seconds to wait for clearing interface list (and calling ondisconnect listeners) |
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33 DEBUG = true, -- show debug messages |
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34 } |
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35 |
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36 local pairs = pairs |
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37 local select = select |
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38 local require = require |
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39 local tostring = tostring |
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40 local setmetatable = setmetatable |
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41 |
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42 local t_insert = table.insert |
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43 local t_concat = table.concat |
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44 local s_sub = string.sub |
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45 |
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46 local coroutine_wrap = coroutine.wrap |
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47 local coroutine_yield = coroutine.yield |
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48 |
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49 local has_luasec, ssl = pcall ( require , "ssl" ) |
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50 local socket = require "socket" |
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51 local levent = require "luaevent.core" |
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52 |
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53 local socket_gettime = socket.gettime |
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54 local getaddrinfo = socket.dns.getaddrinfo |
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55 |
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56 local log = require ("util.logger").init("socket") |
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57 |
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58 local function debug(...) |
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59 return log("debug", ("%s "):rep(select('#', ...)), ...) |
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60 end |
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61 -- local vdebug = debug; |
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62 |
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63 local bitor = ( function( ) -- thx Rici Lake |
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64 local hasbit = function( x, p ) |
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65 return x % ( p + p ) >= p |
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66 end |
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67 return function( x, y ) |
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68 local p = 1 |
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69 local z = 0 |
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70 local limit = x > y and x or y |
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71 while p <= limit do |
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72 if hasbit( x, p ) or hasbit( y, p ) then |
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73 z = z + p |
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74 end |
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75 p = p + p |
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76 end |
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77 return z |
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78 end |
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79 end )( ) |
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80 |
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81 local base = levent.new( ) |
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82 local addevent = base.addevent |
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83 local EV_READ = levent.EV_READ |
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84 local EV_WRITE = levent.EV_WRITE |
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85 local EV_TIMEOUT = levent.EV_TIMEOUT |
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86 local EV_SIGNAL = levent.EV_SIGNAL |
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87 |
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88 local EV_READWRITE = bitor( EV_READ, EV_WRITE ) |
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89 |
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90 local interfacelist = { } |
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91 |
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92 -- Client interface methods |
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93 local interface_mt = {}; interface_mt.__index = interface_mt; |
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94 |
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95 -- Private methods |
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96 function interface_mt:_close() |
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97 return self:_destroy(); |
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98 end |
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99 |
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101 local callback = function( event ) |
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102 if EV_TIMEOUT == event then -- timeout during connection |
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103 self.fatalerror = "connection timeout" |
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104 self:ontimeout() -- call timeout listener |
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105 self:_close() |
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106 debug( "new connection failed. id:", self.id, "error:", self.fatalerror ) |
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107 else |
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108 if plainssl and has_luasec then -- start ssl session |
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109 self:starttls(self._sslctx, true) |
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110 else -- normal connection |
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111 self:_start_session(true) |
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112 end |
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113 debug( "new connection established. id:", self.id ) |
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114 end |
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115 self.eventconnect = nil |
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116 return -1 |
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117 end |
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118 self.eventconnect = addevent( base, self.conn, EV_WRITE, callback, cfg.CONNECT_TIMEOUT ) |
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119 return true |
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120 end |
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121 function interface_mt:_start_session(call_onconnect) -- new session, for example after startssl |
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122 if self.type == "client" then |
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123 local callback = function( ) |
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124 self:_lock( false, false, false ) |
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125 --vdebug( "start listening on client socket with id:", self.id ) |
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126 self.eventread = addevent( base, self.conn, EV_READ, self.readcallback, cfg.READ_TIMEOUT ); -- register callback |
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127 if call_onconnect then |
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128 self:onconnect() |
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129 end |
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130 self.eventsession = nil |
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131 return -1 |
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132 end |
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133 self.eventsession = addevent( base, nil, EV_TIMEOUT, callback, 0 ) |
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134 else |
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135 self:_lock( false ) |
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136 --vdebug( "start listening on server socket with id:", self.id ) |
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137 self.eventread = addevent( base, self.conn, EV_READ, self.readcallback ) -- register callback |
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138 end |
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139 return true |
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140 end |
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141 function interface_mt:_start_ssl(call_onconnect) -- old socket will be destroyed, therefore we have to close read/write events first |
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142 --vdebug( "starting ssl session with client id:", self.id ) |
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143 local _ |
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144 _ = self.eventread and self.eventread:close( ) -- close events; this must be called outside of the event callbacks! |
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145 _ = self.eventwrite and self.eventwrite:close( ) |
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146 self.eventread, self.eventwrite = nil, nil |
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147 local err |
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148 self.conn, err = ssl.wrap( self.conn, self._sslctx ) |
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149 if err then |
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150 self.fatalerror = err |
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151 self.conn = nil -- cannot be used anymore |
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152 if call_onconnect then |
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153 self.ondisconnect = nil -- dont call this when client isnt really connected |
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154 end |
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155 self:_close() |
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156 debug( "fatal error while ssl wrapping:", err ) |
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157 return false |
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158 end |
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159 self.conn:settimeout( 0 ) -- set non blocking |
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160 local handshakecallback = coroutine_wrap(function( event ) |
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161 local _, err |
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162 local attempt = 0 |
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163 local maxattempt = cfg.MAX_HANDSHAKE_ATTEMPTS |
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164 while attempt < maxattempt do -- no endless loop |
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165 attempt = attempt + 1 |
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166 debug( "ssl handshake of client with id:"..tostring(self)..", attempt:"..attempt ) |
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167 if attempt > maxattempt then |
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168 self.fatalerror = "max handshake attempts exceeded" |
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169 elseif EV_TIMEOUT == event then |
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170 self.fatalerror = "timeout during handshake" |
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171 else |
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172 _, err = self.conn:dohandshake( ) |
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173 if not err then |
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174 self:_lock( false, false, false ) -- unlock the interface; sending, closing etc allowed |
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175 self.send = self.conn.send -- caching table lookups with new client object |
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176 self.receive = self.conn.receive |
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177 if not call_onconnect then -- trigger listener |
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178 self:onstatus("ssl-handshake-complete"); |
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179 end |
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180 self:_start_session( call_onconnect ) |
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181 debug( "ssl handshake done" ) |
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182 self.eventhandshake = nil |
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183 return -1 |
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184 end |
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185 if err == "wantwrite" then |
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186 event = EV_WRITE |
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187 elseif err == "wantread" then |
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188 event = EV_READ |
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189 else |
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190 debug( "ssl handshake error:", err ) |
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191 self.fatalerror = err |
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192 end |
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193 end |
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194 if self.fatalerror then |
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195 if call_onconnect then |
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196 self.ondisconnect = nil -- dont call this when client isnt really connected |
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197 end |
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198 self:_close() |
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199 debug( "handshake failed because:", self.fatalerror ) |
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200 self.eventhandshake = nil |
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201 return -1 |
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202 end |
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203 event = coroutine_yield( event, cfg.HANDSHAKE_TIMEOUT ) -- yield this monster... |
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204 end |
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205 end |
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206 ) |
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207 debug "starting handshake..." |
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208 self:_lock( false, true, true ) -- unlock read/write events, but keep interface locked |
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209 self.eventhandshake = addevent( base, self.conn, EV_READWRITE, handshakecallback, cfg.HANDSHAKE_TIMEOUT ) |
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210 return true |
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211 end |
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212 function interface_mt:_destroy() -- close this interface + events and call last listener |
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213 debug( "closing client with id:", self.id, self.fatalerror ) |
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214 self:_lock( true, true, true ) -- first of all, lock the interface to avoid further actions |
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215 local _ |
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216 _ = self.eventread and self.eventread:close( ) |
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217 if self.type == "client" then |
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218 _ = self.eventwrite and self.eventwrite:close( ) |
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219 _ = self.eventhandshake and self.eventhandshake:close( ) |
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220 _ = self.eventstarthandshake and self.eventstarthandshake:close( ) |
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221 _ = self.eventconnect and self.eventconnect:close( ) |
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222 _ = self.eventsession and self.eventsession:close( ) |
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223 _ = self.eventwritetimeout and self.eventwritetimeout:close( ) |
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224 _ = self.eventreadtimeout and self.eventreadtimeout:close( ) |
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225 _ = self.ondisconnect and self:ondisconnect( self.fatalerror ~= "client to close" and self.fatalerror) -- call ondisconnect listener (wont be the case if handshake failed on connect) |
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226 _ = self.conn and self.conn:close( ) -- close connection |
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227 _ = self._server and self._server:counter(-1); |
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228 self.eventread, self.eventwrite = nil, nil |
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229 self.eventstarthandshake, self.eventhandshake, self.eventclose = nil, nil, nil |
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230 self.readcallback, self.writecallback = nil, nil |
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231 else |
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232 self.conn:close( ) |
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233 self.eventread, self.eventclose = nil, nil |
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234 self.interface, self.readcallback = nil, nil |
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235 end |
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236 interfacelist[ self ] = nil |
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237 return true |
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238 end |
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239 |
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240 function interface_mt:_lock(nointerface, noreading, nowriting) -- lock or unlock this interface or events |
6861 | 241 self.nointerface, self.noreading, self.nowriting = nointerface, noreading, nowriting |
242 return nointerface, noreading, nowriting | |
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243 end |
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244 |
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245 --TODO: Deprecate |
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246 function interface_mt:lock_read(switch) |
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247 if switch then |
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248 return self:pause(); |
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249 else |
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250 return self:resume(); |
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251 end |
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252 end |
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253 |
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254 function interface_mt:pause() |
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255 return self:_lock(self.nointerface, true, self.nowriting); |
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256 end |
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257 |
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258 function interface_mt:resume() |
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259 self:_lock(self.nointerface, false, self.nowriting); |
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260 if not self.eventread then |
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261 self.eventread = addevent( base, self.conn, EV_READ, self.readcallback, cfg.READ_TIMEOUT ); -- register callback |
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262 end |
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263 end |
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264 |
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265 function interface_mt:counter(c) |
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266 if c then |
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267 self._connections = self._connections + c |
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268 end |
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269 return self._connections |
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270 end |
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271 |
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272 -- Public methods |
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273 function interface_mt:write(data) |
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274 if self.nowriting then return nil, "locked" end |
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275 --vdebug( "try to send data to client, id/data:", self.id, data ) |
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276 data = tostring( data ) |
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277 local len = #data |
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278 local total = len + self.writebufferlen |
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279 if total > cfg.MAX_SEND_LENGTH then -- check buffer length |
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280 local err = "send buffer exceeded" |
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281 debug( "error:", err ) -- to much, check your app |
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282 return nil, err |
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283 end |
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284 t_insert(self.writebuffer, data) -- new buffer |
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285 self.writebufferlen = total |
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286 if not self.eventwrite then -- register new write event |
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287 --vdebug( "register new write event" ) |
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288 self.eventwrite = addevent( base, self.conn, EV_WRITE, self.writecallback, cfg.WRITE_TIMEOUT ) |
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289 end |
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290 return true |
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291 end |
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292 function interface_mt:close() |
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293 if self.nointerface then return nil, "locked"; end |
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294 debug( "try to close client connection with id:", self.id ) |
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295 if self.type == "client" then |
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296 self.fatalerror = "client to close" |
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297 if self.eventwrite then -- wait for incomplete write request |
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298 self:_lock( true, true, false ) |
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299 debug "closing delayed until writebuffer is empty" |
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300 return nil, "writebuffer not empty, waiting" |
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301 else -- close now |
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302 self:_lock( true, true, true ) |
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303 self:_close() |
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304 return true |
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305 end |
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306 else |
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307 debug( "try to close server with id:", tostring(self.id)) |
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308 self.fatalerror = "server to close" |
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309 self:_lock( true ) |
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310 self:_close( 0 ) |
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311 return true |
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312 end |
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313 end |
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314 |
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315 function interface_mt:socket() |
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316 return self.conn |
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317 end |
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318 |
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319 function interface_mt:server() |
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320 return self._server or self; |
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321 end |
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322 |
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323 function interface_mt:port() |
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324 return self._port |
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325 end |
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326 |
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327 function interface_mt:serverport() |
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328 return self._serverport |
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329 end |
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330 |
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331 function interface_mt:ip() |
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332 return self._ip |
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333 end |
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334 |
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335 function interface_mt:ssl() |
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336 return self._usingssl |
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337 end |
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338 interface_mt.clientport = interface_mt.port -- COMPAT server_select |
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339 |
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340 function interface_mt:type() |
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341 return self._type or "client" |
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342 end |
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343 |
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344 function interface_mt:connections() |
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345 return self._connections |
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346 end |
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347 |
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348 function interface_mt:address() |
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349 return self.addr |
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350 end |
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351 |
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352 function interface_mt:set_sslctx(sslctx) |
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353 self._sslctx = sslctx; |
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354 if sslctx then |
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355 self.starttls = nil; -- use starttls() of interface_mt |
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356 else |
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357 self.starttls = false; -- prevent starttls() |
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358 end |
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359 end |
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360 |
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361 function interface_mt:set_mode(pattern) |
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362 if pattern then |
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363 self._pattern = pattern; |
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364 end |
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365 return self._pattern; |
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366 end |
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367 |
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368 function interface_mt:set_send(new_send) -- luacheck: ignore 212 |
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369 -- No-op, we always use the underlying connection's send |
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370 end |
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371 |
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372 function interface_mt:starttls(sslctx, call_onconnect) |
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373 debug( "try to start ssl at client id:", self.id ) |
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374 local err |
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375 self._sslctx = sslctx; |
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376 if self._usingssl then -- startssl was already called |
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377 err = "ssl already active" |
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378 end |
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379 if err then |
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380 debug( "error:", err ) |
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381 return nil, err |
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382 end |
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383 self._usingssl = true |
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384 self.startsslcallback = function( ) -- we have to start the handshake outside of a read/write event |
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385 self.startsslcallback = nil |
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386 self:_start_ssl(call_onconnect); |
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387 self.eventstarthandshake = nil |
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388 return -1 |
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389 end |
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390 if not self.eventwrite then |
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391 self:_lock( true, true, true ) -- lock the interface, to not disturb the handshake |
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392 self.eventstarthandshake = addevent( base, nil, EV_TIMEOUT, self.startsslcallback, 0 ) -- add event to start handshake |
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393 else -- wait until writebuffer is empty |
6860 | 394 self:_lock( true, true, false ) |
395 debug "ssl session delayed until writebuffer is empty..." | |
396 end | |
397 self.starttls = false; | |
398 return true | |
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399 end |
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400 |
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401 function interface_mt:setoption(option, value) |
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402 if self.conn.setoption then |
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403 return self.conn:setoption(option, value); |
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404 end |
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405 return false, "setoption not implemented"; |
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406 end |
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407 |
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408 function interface_mt:setlistener(listener) |
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409 self:ondetach(); -- Notify listener that it is no longer responsible for this connection |
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410 self.onconnect, self.ondisconnect, self.onincoming, self.ontimeout, |
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411 self.onreadtimeout, self.onstatus, self.ondetach |
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412 = listener.onconnect, listener.ondisconnect, listener.onincoming, listener.ontimeout, |
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413 listener.onreadtimeout, listener.onstatus, listener.ondetach; |
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414 end |
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415 |
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416 -- Stub handlers |
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417 function interface_mt:onconnect() |
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418 end |
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419 function interface_mt:onincoming() |
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420 end |
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421 function interface_mt:ondisconnect() |
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422 end |
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423 function interface_mt:ontimeout() |
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424 end |
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425 function interface_mt:onreadtimeout() |
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426 self.fatalerror = "timeout during receiving" |
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427 debug( "connection failed:", self.fatalerror ) |
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428 self:_close() |
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429 self.eventread = nil |
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430 end |
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431 function interface_mt:ondrain() |
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432 end |
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433 function interface_mt:ondetach() |
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434 end |
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435 function interface_mt:onstatus() |
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436 end |
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437 |
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438 -- End of client interface methods |
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439 |
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440 local function handleclient( client, ip, port, server, pattern, listener, sslctx ) -- creates an client interface |
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441 --vdebug("creating client interfacce...") |
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442 local interface = { |
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443 type = "client"; |
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444 conn = client; |
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445 currenttime = socket_gettime( ); -- safe the origin |
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446 writebuffer = {}; -- writebuffer |
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447 writebufferlen = 0; -- length of writebuffer |
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448 send = client.send; -- caching table lookups |
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449 receive = client.receive; |
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450 onconnect = listener.onconnect; -- will be called when client disconnects |
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451 ondisconnect = listener.ondisconnect; -- will be called when client disconnects |
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452 onincoming = listener.onincoming; -- will be called when client sends data |
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453 ontimeout = listener.ontimeout; -- called when fatal socket timeout occurs |
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454 onreadtimeout = listener.onreadtimeout; -- called when socket inactivity timeout occurs |
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455 ondrain = listener.ondrain; -- called when writebuffer is empty |
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456 ondetach = listener.ondetach; -- called when disassociating this listener from this connection |
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457 onstatus = listener.onstatus; -- called for status changes (e.g. of SSL/TLS) |
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458 eventread = false, eventwrite = false, eventclose = false, |
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459 eventhandshake = false, eventstarthandshake = false; -- event handler |
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460 eventconnect = false, eventsession = false; -- more event handler... |
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461 eventwritetimeout = false; -- even more event handler... |
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462 eventreadtimeout = false; |
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463 fatalerror = false; -- error message |
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464 writecallback = false; -- will be called on write events |
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465 readcallback = false; -- will be called on read events |
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466 nointerface = true; -- lock/unlock parameter of this interface |
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467 noreading = false, nowriting = false; -- locks of the read/writecallback |
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468 startsslcallback = false; -- starting handshake callback |
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469 position = false; -- position of client in interfacelist |
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470 |
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471 -- Properties |
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472 _ip = ip, _port = port, _server = server, _pattern = pattern, |
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473 _serverport = (server and server:port() or nil), |
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474 _sslctx = sslctx; -- parameters |
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475 _usingssl = false; -- client is using ssl; |
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476 } |
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477 if not has_luasec then interface.starttls = false; end |
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478 interface.id = tostring(interface):match("%x+$"); |
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479 interface.writecallback = function( event ) -- called on write events |
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480 --vdebug( "new client write event, id/ip/port:", interface, ip, port ) |
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481 if interface.nowriting or ( interface.fatalerror and ( "client to close" ~= interface.fatalerror ) ) then -- leave this event |
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482 --vdebug( "leaving this event because:", interface.nowriting or interface.fatalerror ) |
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483 interface.eventwrite = false |
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484 return -1 |
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485 end |
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486 if EV_TIMEOUT == event then -- took too long to write some data to socket -> disconnect |
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487 interface.fatalerror = "timeout during writing" |
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488 debug( "writing failed:", interface.fatalerror ) |
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489 interface:_close() |
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490 interface.eventwrite = false |
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491 return -1 |
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492 else -- can write :) |
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493 if interface._usingssl then -- handle luasec |
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494 if interface.eventreadtimeout then -- we have to read first |
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495 local ret = interface.readcallback( ) -- call readcallback |
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496 --vdebug( "tried to read in writecallback, result:", ret ) |
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497 end |
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498 if interface.eventwritetimeout then -- luasec only |
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499 interface.eventwritetimeout:close( ) -- first we have to close timeout event which where regged after a wantread error |
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500 interface.eventwritetimeout = false |
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501 end |
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502 end |
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503 interface.writebuffer = { t_concat(interface.writebuffer) } |
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504 local succ, err, byte = interface.conn:send( interface.writebuffer[1], 1, interface.writebufferlen ) |
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505 --vdebug( "write data:", interface.writebuffer, "error:", err, "part:", byte ) |
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506 if succ then -- writing succesful |
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507 interface.writebuffer[1] = nil |
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508 interface.writebufferlen = 0 |
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509 interface:ondrain(); |
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510 if interface.fatalerror then |
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511 debug "closing client after writing" |
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512 interface:_close() -- close interface if needed |
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513 elseif interface.startsslcallback then -- start ssl connection if needed |
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514 debug "starting ssl handshake after writing" |
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515 interface.eventstarthandshake = addevent( base, nil, EV_TIMEOUT, interface.startsslcallback, 0 ) |
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516 elseif interface.eventreadtimeout then |
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517 return EV_WRITE, EV_TIMEOUT |
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518 end |
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519 interface.eventwrite = nil |
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520 return -1 |
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521 elseif byte and (err == "timeout" or err == "wantwrite") then -- want write again |
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522 --vdebug( "writebuffer is not empty:", err ) |
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523 interface.writebuffer[1] = s_sub( interface.writebuffer[1], byte + 1, interface.writebufferlen ) -- new buffer |
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524 interface.writebufferlen = interface.writebufferlen - byte |
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525 if "wantread" == err then -- happens only with luasec |
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526 local callback = function( ) |
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527 interface:_close() |
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528 interface.eventwritetimeout = nil |
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529 return -1; |
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530 end |
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531 interface.eventwritetimeout = addevent( base, nil, EV_TIMEOUT, callback, cfg.WRITE_TIMEOUT ) -- reg a new timeout event |
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532 debug( "wantread during write attempt, reg it in readcallback but dont know what really happens next..." ) |
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533 -- hopefully this works with luasec; its simply not possible to use 2 different write events on a socket in luaevent |
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534 return -1 |
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535 end |
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536 return EV_WRITE, cfg.WRITE_TIMEOUT |
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537 else -- connection was closed during writing or fatal error |
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538 interface.fatalerror = err or "fatal error" |
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539 debug( "connection failed in write event:", interface.fatalerror ) |
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540 interface:_close() |
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541 interface.eventwrite = nil |
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542 return -1 |
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543 end |
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544 end |
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545 end |
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546 |
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547 interface.readcallback = function( event ) -- called on read events |
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548 --vdebug( "new client read event, id/ip/port:", tostring(interface.id), tostring(ip), tostring(port) ) |
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549 if interface.noreading or interface.fatalerror then -- leave this event |
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550 --vdebug( "leaving this event because:", tostring(interface.noreading or interface.fatalerror) ) |
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551 interface.eventread = nil |
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552 return -1 |
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553 end |
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554 if EV_TIMEOUT == event and interface:onreadtimeout() ~= true then |
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555 return -1 -- took too long to get some data from client -> disconnect |
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556 end |
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557 if interface._usingssl then -- handle luasec |
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558 if interface.eventwritetimeout then -- ok, in the past writecallback was regged |
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559 local ret = interface.writecallback( ) -- call it |
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560 --vdebug( "tried to write in readcallback, result:", tostring(ret) ) |
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561 end |
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562 if interface.eventreadtimeout then |
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563 interface.eventreadtimeout:close( ) |
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564 interface.eventreadtimeout = nil |
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565 end |
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566 end |
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567 local buffer, err, part = interface.conn:receive( interface._pattern ) -- receive buffer with "pattern" |
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568 --vdebug( "read data:", tostring(buffer), "error:", tostring(err), "part:", tostring(part) ) |
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569 buffer = buffer or part |
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570 if buffer and #buffer > cfg.MAX_READ_LENGTH then -- check buffer length |
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571 interface.fatalerror = "receive buffer exceeded" |
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572 debug( "fatal error:", interface.fatalerror ) |
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573 interface:_close() |
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574 interface.eventread = nil |
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575 return -1 |
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576 end |
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577 if err and ( err ~= "timeout" and err ~= "wantread" ) then |
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578 if "wantwrite" == err then -- need to read on write event |
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579 if not interface.eventwrite then -- register new write event if needed |
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580 interface.eventwrite = addevent( base, interface.conn, EV_WRITE, interface.writecallback, cfg.WRITE_TIMEOUT ) |
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581 end |
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582 interface.eventreadtimeout = addevent( base, nil, EV_TIMEOUT, |
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583 function( ) |
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584 interface:_close() |
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585 end, cfg.READ_TIMEOUT |
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586 ) |
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587 debug( "wantwrite during read attempt, reg it in writecallback but dont know what really happens next..." ) |
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588 -- to be honest i dont know what happens next, if it is allowed to first read, the write etc... |
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589 else -- connection was closed or fatal error |
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590 interface.fatalerror = err |
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591 debug( "connection failed in read event:", interface.fatalerror ) |
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592 interface:_close() |
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593 interface.eventread = nil |
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594 return -1 |
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595 end |
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596 else |
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597 interface.onincoming( interface, buffer, err ) -- send new data to listener |
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598 end |
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599 if interface.noreading then |
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600 interface.eventread = nil; |
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601 return -1; |
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602 end |
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603 return EV_READ, cfg.READ_TIMEOUT |
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604 end |
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605 |
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606 client:settimeout( 0 ) -- set non blocking |
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607 setmetatable(interface, interface_mt) |
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608 interfacelist[ interface ] = true -- add to interfacelist |
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609 return interface |
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610 end |
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611 |
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612 local function handleserver( server, addr, port, pattern, listener, sslctx ) -- creates an server interface |
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613 debug "creating server interface..." |
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614 local interface = { |
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615 _connections = 0; |
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616 |
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617 conn = server; |
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618 onconnect = listener.onconnect; -- will be called when new client connected |
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619 eventread = false; -- read event handler |
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620 eventclose = false; -- close event handler |
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621 readcallback = false; -- read event callback |
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622 fatalerror = false; -- error message |
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623 nointerface = true; -- lock/unlock parameter |
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624 |
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625 _ip = addr, _port = port, _pattern = pattern, |
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626 _sslctx = sslctx; |
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627 } |
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628 interface.id = tostring(interface):match("%x+$"); |
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629 interface.readcallback = function( event ) -- server handler, called on incoming connections |
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630 --vdebug( "server can accept, id/addr/port:", interface, addr, port ) |
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631 if interface.fatalerror then |
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632 --vdebug( "leaving this event because:", self.fatalerror ) |
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633 interface.eventread = nil |
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634 return -1 |
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635 end |
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636 local delay = cfg.ACCEPT_DELAY |
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637 if EV_TIMEOUT == event then |
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638 if interface._connections >= cfg.MAX_CONNECTIONS then -- check connection count |
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639 debug( "to many connections, seconds to wait for next accept:", delay ) |
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640 return EV_TIMEOUT, delay -- timeout... |
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641 else |
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642 return EV_READ -- accept again |
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643 end |
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644 end |
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645 --vdebug("max connection check ok, accepting...") |
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646 local client, err = server:accept() -- try to accept; TODO: check err |
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647 while client do |
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648 if interface._connections >= cfg.MAX_CONNECTIONS then |
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649 client:close( ) -- refuse connection |
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650 debug( "maximal connections reached, refuse client connection; accept delay:", delay ) |
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651 return EV_TIMEOUT, delay -- delay for next accept attempt |
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652 end |
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653 local client_ip, client_port = client:getpeername( ) |
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654 interface._connections = interface._connections + 1 -- increase connection count |
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655 local clientinterface = handleclient( client, client_ip, client_port, interface, pattern, listener, sslctx ) |
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656 --vdebug( "client id:", clientinterface, "startssl:", startssl ) |
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657 if has_luasec and sslctx then |
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658 clientinterface:starttls(sslctx, true) |
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659 else |
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660 clientinterface:_start_session( true ) |
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661 end |
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662 debug( "accepted incoming client connection from:", client_ip or "<unknown IP>", client_port or "<unknown port>", "to", port or "<unknown port>"); |
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663 |
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664 client, err = server:accept() -- try to accept again |
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665 end |
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666 return EV_READ |
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667 end |
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668 |
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669 server:settimeout( 0 ) |
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670 setmetatable(interface, interface_mt) |
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671 interfacelist[ interface ] = true |
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672 interface:_start_session() |
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673 return interface |
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674 end |
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675 |
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676 local function addserver( addr, port, listener, pattern, sslctx, startssl ) -- TODO: check arguments |
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677 --vdebug( "creating new tcp server with following parameters:", addr or "nil", port or "nil", sslctx or "nil", startssl or "nil") |
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678 if sslctx and not has_luasec then |
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679 debug "fatal error: luasec not found" |
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680 return nil, "luasec not found" |
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681 end |
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682 local server, err = socket.bind( addr, port, cfg.ACCEPT_QUEUE ) -- create server socket |
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683 if not server then |
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684 debug( "creating server socket on "..addr.." port "..port.." failed:", err ) |
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685 return nil, err |
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686 end |
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687 local interface = handleserver( server, addr, port, pattern, listener, sslctx, startssl ) -- new server handler |
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688 debug( "new server created with id:", tostring(interface)) |
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689 return interface |
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690 end |
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net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
691 |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
692 local function wrapclient( client, ip, port, listeners, pattern, sslctx ) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
693 local interface = handleclient( client, ip, port, nil, pattern, listeners, sslctx ) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
694 interface:_start_connection(sslctx) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
695 return interface, client |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
696 --function handleclient( client, ip, port, server, pattern, listener, _, sslctx ) -- creates an client interface |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
697 end |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
698 |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
699 local function addclient( addr, serverport, listener, pattern, sslctx, typ ) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
700 if sslctx and not has_luasec then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
701 debug "need luasec, but not available" |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
702 return nil, "luasec not found" |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
703 end |
6861 | 704 if getaddrinfo and not typ then |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
705 local addrinfo, err = getaddrinfo(addr) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
706 if not addrinfo then return nil, err end |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
707 if addrinfo[1] and addrinfo[1].family == "inet6" then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
708 typ = "tcp6" |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
709 end |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
710 end |
6861 | 711 local create = socket[typ or "tcp"] |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
712 if type( create ) ~= "function" then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
713 return nil, "invalid socket type" |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
714 end |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
715 local client, err = create() -- creating new socket |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
716 if not client then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
717 debug( "cannot create socket:", err ) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
718 return nil, err |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
719 end |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
720 client:settimeout( 0 ) -- set nonblocking |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
721 local res, err = client:connect( addr, serverport ) -- connect |
6861 | 722 if res or ( err == "timeout" or err == "Operation already in progress" ) then |
723 if client.getsockname then | |
724 addr = client:getsockname( ) | |
725 end | |
726 local interface = wrapclient( client, addr, serverport, listener, pattern, sslctx ) | |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
727 debug( "new connection id:", interface.id ) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
728 return interface, err |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
729 else |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
730 debug( "new connection failed:", err ) |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
731 return nil, err |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
732 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
733 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
734 |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
735 local function loop( ) -- starts the event loop |
2333
ed824115becf
net.server_event: Return "quitting" on loop exit to be compatible with net.server_select, and give Prosody a way to know why the loop broke
Matthew Wild <mwild1@gmail.com>
parents:
2318
diff
changeset
|
736 base:loop( ) |
ed824115becf
net.server_event: Return "quitting" on loop exit to be compatible with net.server_select, and give Prosody a way to know why the loop broke
Matthew Wild <mwild1@gmail.com>
parents:
2318
diff
changeset
|
737 return "quitting"; |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
738 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
739 |
6850
41de00647ad3
server_event: Move local references to various functions to top of file
Kim Alvefur <zash@zash.se>
parents:
6849
diff
changeset
|
740 local function newevent( ... ) |
41de00647ad3
server_event: Move local references to various functions to top of file
Kim Alvefur <zash@zash.se>
parents:
6849
diff
changeset
|
741 return addevent( base, ... ) |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
742 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
743 |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
744 local function closeallservers ( arg ) |
6849
0455b9686e16
server_event: Replace implementation of ordered set with a simple table set
Kim Alvefur <zash@zash.se>
parents:
6819
diff
changeset
|
745 for item in pairs( interfacelist ) do |
2334
4cedfeeaaed4
net.server_event: Fix closeallservers() to work correctly after the giant refactorizification
Matthew Wild <mwild1@gmail.com>
parents:
2333
diff
changeset
|
746 if item.type == "server" then |
4cedfeeaaed4
net.server_event: Fix closeallservers() to work correctly after the giant refactorizification
Matthew Wild <mwild1@gmail.com>
parents:
2333
diff
changeset
|
747 item:close( arg ) |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
748 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
749 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
750 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
751 |
2335
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
752 local function setquitting(yes) |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
753 if yes then |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
754 -- Quit now |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
755 closeallservers(); |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
756 base:loopexit(); |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
757 end |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
758 end |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
759 |
4399
1b4161970842
net.server_event, net.server_select: Fixed some global pollution.
Waqas Hussain <waqas20@gmail.com>
parents:
4377
diff
changeset
|
760 local function get_backend() |
2340
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
761 return base:method(); |
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
762 end |
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
763 |
2434
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
764 -- We need to hold onto the events to stop them |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
765 -- being garbage-collected |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
766 local signal_events = {}; -- [signal_num] -> event object |
4399
1b4161970842
net.server_event, net.server_select: Fixed some global pollution.
Waqas Hussain <waqas20@gmail.com>
parents:
4377
diff
changeset
|
767 local function hook_signal(signal_num, handler) |
6856
489f4ae291bf
server_event: Remove unused argument [luacheck]
Kim Alvefur <zash@zash.se>
parents:
6855
diff
changeset
|
768 local function _handler() |
2434
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
769 local ret = handler(); |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
770 if ret ~= false then -- Continue handling this signal? |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
771 return EV_SIGNAL; -- Yes |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
772 end |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
773 return -1; -- Close this event |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
774 end |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
775 signal_events[signal_num] = base:addevent(signal_num, EV_SIGNAL, _handler); |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
776 return signal_events[signal_num]; |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
777 end |
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
778 |
3003
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
779 local function link(sender, receiver, buffersize) |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
780 local sender_locked; |
5776
bd0ff8ae98a8
Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
5756
diff
changeset
|
781 |
3003
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
782 function receiver:ondrain() |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
783 if sender_locked then |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
784 sender:resume(); |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
785 sender_locked = nil; |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
786 end |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
787 end |
5776
bd0ff8ae98a8
Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
5756
diff
changeset
|
788 |
3003
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
789 function sender:onincoming(data) |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
790 receiver:write(data); |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
791 if receiver.writebufferlen >= buffersize then |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
792 sender_locked = true; |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
793 sender:pause(); |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
794 end |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
795 end |
6314
8029b8a5f37a
net.server_select/event: Switch sender mode to *a when reading, to make sure we get all available data
Matthew Wild <mwild1@gmail.com>
parents:
6047
diff
changeset
|
796 sender:set_mode("*a"); |
3003
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
797 end |
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
798 |
6862
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
799 local function add_task(delay, callback) |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
800 local event_handle; |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
801 event_handle = base:addevent(nil, 0, function () |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
802 local ret = callback(socket_gettime()); |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
803 if ret then |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
804 return 0, ret; |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
805 elseif event_handle then |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
806 return -1; |
6481
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
807 end |
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
808 end |
6862
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
809 , delay); |
6481
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
810 end |
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
811 |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
812 return { |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
813 cfg = cfg, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
814 base = base, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
815 loop = loop, |
3003
48871a549b4c
net.server_select, net.server_event: Add server.link() to link 2 connections with an intermediate buffer of the specified size
Matthew Wild <mwild1@gmail.com>
parents:
3002
diff
changeset
|
816 link = link, |
6853
a2cc477eb19b
server_event: Rename luaevent module variable to avoid name clash [luacheck]
Kim Alvefur <zash@zash.se>
parents:
6852
diff
changeset
|
817 event = levent, |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
818 event_base = base, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
819 addevent = newevent, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
820 addserver = addserver, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
821 addclient = addclient, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
822 wrapclient = wrapclient, |
2336
fb1d9d2444df
Rename closeallservers to closeall in the public API (same as net.server_select) and expose setquitting
Matthew Wild <mwild1@gmail.com>
parents:
2335
diff
changeset
|
823 setquitting = setquitting, |
fb1d9d2444df
Rename closeallservers to closeall in the public API (same as net.server_select) and expose setquitting
Matthew Wild <mwild1@gmail.com>
parents:
2335
diff
changeset
|
824 closeall = closeallservers, |
2340
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
825 get_backend = get_backend, |
2434
4403d4473783
net.server_event: Add server.hook_signal(signal_num, handler) to wrap libevent's signal-catching interface
Matthew Wild <mwild1@gmail.com>
parents:
2375
diff
changeset
|
826 hook_signal = hook_signal, |
6481
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
827 add_task = add_task, |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
828 |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
829 __NAME = SCRIPT_NAME, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
830 __DATE = LAST_MODIFIED, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
831 __AUTHOR = SCRIPT_AUTHOR, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
832 __VERSION = SCRIPT_VERSION, |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
833 |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
834 } |