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net/server_event.lua @ 12604:bd9e006a7a74
various: Update IETF RFC URLs for tools.ietf.org transition
See https://www.ietf.org/blog/finalizing-ietf-tools-transition/
Already done in various other places.
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 05 Aug 2022 16:54:15 +0200 |
parent | 12542:5ec9d6913162 |
child | 12974:ba409c67353b |
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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 can't 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 -- don't 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 = 14 * 60, -- 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 READ_RETRY_DELAY = 1e-06, -- if, after reading, there is still data in buffer, wait this long and continue reading |
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34 DEBUG = true, -- show debug messages |
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35 } |
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36 |
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37 local pairs = pairs |
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38 local select = select |
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39 local require = require |
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40 local tostring = tostring |
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41 local setmetatable = setmetatable |
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42 |
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43 local t_insert = table.insert |
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44 local t_concat = table.concat |
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45 local s_sub = string.sub |
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46 |
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47 local coroutine_wrap = coroutine.wrap |
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48 local coroutine_yield = coroutine.yield |
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49 |
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50 local has_luasec = pcall ( require , "ssl" ) |
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51 local socket = require "socket" |
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52 local levent = require "luaevent.core" |
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53 local inet = require "util.net"; |
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54 local inet_pton = inet.pton; |
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55 local sslconfig = require "util.sslconfig"; |
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56 local tls_impl = require "net.tls_luasec"; |
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57 |
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58 local socket_gettime = socket.gettime |
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59 |
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60 local log = require ("util.logger").init("socket") |
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61 |
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62 local function debug(...) |
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63 return log("debug", ("%s "):rep(select('#', ...)), ...) |
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64 end |
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65 -- local vdebug = debug; |
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66 |
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67 local bitor = ( function( ) -- thx Rici Lake |
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68 local hasbit = function( x, p ) |
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69 return x % ( p + p ) >= p |
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70 end |
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71 return function( x, y ) |
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72 local p = 1 |
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73 local z = 0 |
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74 local limit = x > y and x or y |
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75 while p <= limit do |
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76 if hasbit( x, p ) or hasbit( y, p ) then |
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77 z = z + p |
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78 end |
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79 p = p + p |
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80 end |
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81 return z |
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82 end |
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83 end )( ) |
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84 |
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85 local base = levent.new( ) |
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86 local addevent = base.addevent |
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87 local EV_READ = levent.EV_READ |
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88 local EV_WRITE = levent.EV_WRITE |
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89 local EV_TIMEOUT = levent.EV_TIMEOUT |
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90 local EV_SIGNAL = levent.EV_SIGNAL |
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91 |
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92 local EV_READWRITE = bitor( EV_READ, EV_WRITE ) |
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93 |
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94 local interfacelist = { } |
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95 |
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96 -- Client interface methods |
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97 local interface_mt = {}; interface_mt.__index = interface_mt; |
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98 |
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99 -- Private methods |
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100 function interface_mt:_close() |
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101 return self:_destroy(); |
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102 end |
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103 |
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104 function interface_mt:_start_connection(plainssl) -- called from wrapclient |
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105 local callback = function( event ) |
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106 if EV_TIMEOUT == event then -- timeout during connection |
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107 self.fatalerror = "connection timeout" |
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108 self:ontimeout() -- call timeout listener |
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109 self:_close() |
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110 debug( "new connection failed. id:", self.id, "error:", self.fatalerror ) |
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111 else |
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112 if EV_READWRITE == event then |
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113 if self.readcallback(event) == -1 then |
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114 -- Fatal error occurred |
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115 return -1; |
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116 end |
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117 end |
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118 if plainssl and has_luasec then -- start ssl session |
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119 self:starttls(self._sslctx, true) |
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120 else -- normal connection |
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121 self:_start_session(true) |
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122 end |
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123 debug( "new connection established. id:", self.id ) |
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124 end |
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125 self.eventconnect = nil |
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126 return -1 |
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127 end |
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128 self.eventconnect = addevent( base, self.conn, EV_READWRITE, callback, cfg.CONNECT_TIMEOUT ) |
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129 return true |
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130 end |
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131 function interface_mt:_start_session(call_onconnect) -- new session, for example after startssl |
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132 if self.type == "client" then |
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133 local callback = function( ) |
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134 self:_lock( false, false, false ) |
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135 --vdebug( "start listening on client socket with id:", self.id ) |
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136 self.eventread = addevent( base, self.conn, EV_READ, self.readcallback, cfg.READ_TIMEOUT ); -- register callback |
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137 if call_onconnect then |
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138 self:onconnect() |
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139 end |
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140 self.eventsession = nil |
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141 return -1 |
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142 end |
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143 self.eventsession = addevent( base, nil, EV_TIMEOUT, callback, 0 ) |
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144 else |
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145 self:_lock( false ) |
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146 --vdebug( "start listening on server socket with id:", self.id ) |
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147 self.eventread = addevent( base, self.conn, EV_READ, self.readcallback ) -- register callback |
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148 end |
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149 return true |
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150 end |
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151 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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152 --vdebug( "starting ssl session with client id:", self.id ) |
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153 local _ |
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154 _ = self.eventread and self.eventread:close( ) -- close events; this must be called outside of the event callbacks! |
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155 _ = self.eventwrite and self.eventwrite:close( ) |
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156 self.eventread, self.eventwrite = nil, nil |
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157 local err |
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158 self.conn, err = self._sslctx:wrap(self.conn) |
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159 if err then |
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160 self.fatalerror = err |
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161 self.conn = nil -- cannot be used anymore |
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162 if call_onconnect then |
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163 self.ondisconnect = nil -- don't call this when client isn't really connected |
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164 end |
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165 self:_close() |
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166 debug( "fatal error while ssl wrapping:", err ) |
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167 return false |
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168 end |
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169 |
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170 if self.conn.sni then |
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171 if self.servername then |
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172 self.conn:sni(self.servername); |
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173 elseif next(self._sslctx._sni_contexts) ~= nil then |
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174 self.conn:sni(self._sslctx._sni_contexts, true); |
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175 end |
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176 end |
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177 |
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178 self.conn:settimeout( 0 ) -- set non blocking |
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179 local handshakecallback = coroutine_wrap(function( event ) |
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180 local _, err |
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181 local attempt = 0 |
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182 local maxattempt = cfg.MAX_HANDSHAKE_ATTEMPTS |
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183 while attempt < maxattempt do -- no endless loop |
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184 attempt = attempt + 1 |
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185 debug( "ssl handshake of client with id:"..tostring(self)..", attempt:"..attempt ) |
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186 if attempt > maxattempt then |
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187 self.fatalerror = "max handshake attempts exceeded" |
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188 elseif EV_TIMEOUT == event then |
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189 self.fatalerror = "timeout during handshake" |
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190 else |
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191 _, err = self.conn:dohandshake( ) |
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192 if not err then |
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193 self:_lock( false, false, false ) -- unlock the interface; sending, closing etc allowed |
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194 self.send = self.conn.send -- caching table lookups with new client object |
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195 self.receive = self.conn.receive |
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196 if not call_onconnect then -- trigger listener |
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197 self:onstatus("ssl-handshake-complete"); |
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198 end |
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199 self:_start_session( call_onconnect ) |
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200 debug( "ssl handshake done" ) |
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201 self.eventhandshake = nil |
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202 return -1 |
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203 end |
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204 if err == "wantwrite" then |
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205 event = EV_WRITE |
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206 elseif err == "wantread" then |
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207 event = EV_READ |
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208 else |
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209 debug( "ssl handshake error:", err ) |
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210 self.fatalerror = err |
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211 end |
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212 end |
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213 if self.fatalerror then |
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214 if call_onconnect then |
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215 self.ondisconnect = nil -- don't call this when client isn't really connected |
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216 end |
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217 self:_close() |
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218 debug( "handshake failed because:", self.fatalerror ) |
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219 self.eventhandshake = nil |
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220 return -1 |
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221 end |
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222 event = coroutine_yield( event, cfg.HANDSHAKE_TIMEOUT ) -- yield this monster... |
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223 end |
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224 end |
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225 ) |
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226 debug "starting handshake..." |
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227 self:_lock( false, true, true ) -- unlock read/write events, but keep interface locked |
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228 self.eventhandshake = addevent( base, self.conn, EV_READWRITE, handshakecallback, cfg.HANDSHAKE_TIMEOUT ) |
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229 return true |
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230 end |
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231 function interface_mt:_destroy() -- close this interface + events and call last listener |
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232 debug( "closing client with id:", self.id, self.fatalerror ) |
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233 self:_lock( true, true, true ) -- first of all, lock the interface to avoid further actions |
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234 local _ |
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235 _ = self.eventread and self.eventread:close( ) |
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236 if self.type == "client" then |
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237 _ = self.eventwrite and self.eventwrite:close( ) |
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238 _ = self.eventhandshake and self.eventhandshake:close( ) |
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239 _ = self.eventstarthandshake and self.eventstarthandshake:close( ) |
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240 _ = self.eventconnect and self.eventconnect:close( ) |
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241 _ = self.eventsession and self.eventsession:close( ) |
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242 _ = self.eventwritetimeout and self.eventwritetimeout:close( ) |
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243 _ = self.eventreadtimeout and self.eventreadtimeout:close( ) |
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244 -- call ondisconnect listener (won't be the case if handshake failed on connect) |
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245 _ = self.ondisconnect and self:ondisconnect( self.fatalerror ~= "client to close" and self.fatalerror) |
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246 _ = self.conn and self.conn:close( ) -- close connection |
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247 _ = self._server and self._server:counter(-1); |
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248 self.eventread, self.eventwrite = nil, nil |
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249 self.eventstarthandshake, self.eventhandshake, self.eventclose = nil, nil, nil |
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250 self.readcallback, self.writecallback = nil, nil |
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251 else |
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252 self.conn:close( ) |
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253 self.eventread, self.eventclose = nil, nil |
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254 self.interface, self.readcallback = nil, nil |
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255 end |
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256 interfacelist[ self ] = nil |
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257 return true |
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258 end |
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259 |
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260 function interface_mt:_lock(nointerface, noreading, nowriting) -- lock or unlock this interface or events |
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261 self.nointerface, self.noreading, self.nowriting = nointerface, noreading, nowriting |
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262 return nointerface, noreading, nowriting |
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263 end |
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264 |
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265 --TODO: Deprecate |
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266 function interface_mt:lock_read(switch) |
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267 log("warn", ":lock_read is deprecated, use :pause() and :resume()"); |
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268 if switch then |
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269 return self:pause(); |
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270 else |
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271 return self:resume(); |
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272 end |
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273 end |
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274 |
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275 function interface_mt:pause() |
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276 return self:_lock(self.nointerface, true, self.nowriting); |
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277 end |
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278 |
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279 function interface_mt:sslctx() |
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280 return self._sslctx |
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281 end |
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282 |
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283 function interface_mt:ssl_info() |
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284 local sock = self.conn; |
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285 if not sock.info then return nil, "not-implemented"; end |
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286 return sock:info(); |
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287 end |
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288 |
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289 function interface_mt:ssl_peercertificate() |
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290 local sock = self.conn; |
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291 if not sock.getpeercertificate then return nil, "not-implemented"; end |
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292 return sock:getpeercertificate(); |
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293 end |
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294 |
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295 function interface_mt:ssl_peerverification() |
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296 local sock = self.conn; |
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297 if not sock.getpeerverification then return nil, { { "Chain verification not supported" } }; end |
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298 return sock:getpeerverification(); |
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299 end |
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300 |
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301 function interface_mt:ssl_peerfinished() |
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302 local sock = self.conn; |
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303 if not sock.getpeerfinished then return nil, "not-implemented"; end |
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304 return sock:getpeerfinished(); |
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305 end |
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306 |
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307 function interface_mt:resume() |
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308 self:_lock(self.nointerface, false, self.nowriting); |
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309 if self.readcallback and not self.eventread then |
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310 self.eventread = addevent( base, self.conn, EV_READ, self.readcallback, cfg.READ_TIMEOUT ); -- register callback |
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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:pause_writes() |
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316 return self:_lock(self.nointerface, self.noreading, true); |
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317 end |
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318 |
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319 function interface_mt:resume_writes() |
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320 self:_lock(self.nointerface, self.noreading, false); |
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321 if self.writecallback and not self.eventwrite then |
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322 self.eventwrite = addevent( base, self.conn, EV_WRITE, self.writecallback, cfg.WRITE_TIMEOUT ); -- register callback |
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323 return true; |
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324 end |
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325 end |
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326 |
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327 |
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328 function interface_mt:counter(c) |
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329 if c then |
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330 self._connections = self._connections + c |
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331 end |
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332 return self._connections |
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333 end |
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334 |
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335 -- Public methods |
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336 function interface_mt:write(data) |
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337 if self.nointerface then return nil, "locked"; end |
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338 --vdebug( "try to send data to client, id/data:", self.id, data ) |
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339 data = tostring( data ) |
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340 local len = #data |
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341 local total = len + self.writebufferlen |
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342 if total > cfg.MAX_SEND_LENGTH then -- check buffer length |
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343 local err = "send buffer exceeded" |
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344 debug( "error:", err ) -- to much, check your app |
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345 return nil, err |
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346 end |
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347 t_insert(self.writebuffer, data) -- new buffer |
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348 self.writebufferlen = total |
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349 if not self.eventwrite and not self.nowriting then -- register new write event |
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350 --vdebug( "register new write event" ) |
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351 self.eventwrite = addevent( base, self.conn, EV_WRITE, self.writecallback, cfg.WRITE_TIMEOUT ) |
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352 end |
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353 return true |
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354 end |
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355 function interface_mt:close() |
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356 if self.nointerface then return nil, "locked"; end |
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357 debug( "try to close client connection with id:", self.id ) |
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358 if self.type == "client" then |
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359 self.fatalerror = "client to close" |
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360 if self.eventwrite then -- wait for incomplete write request |
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361 self:_lock( true, true, false ) |
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362 debug "closing delayed until writebuffer is empty" |
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363 return nil, "writebuffer not empty, waiting" |
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364 else -- close now |
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365 self:_lock( true, true, true ) |
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366 self:_close() |
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367 return true |
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368 end |
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369 else |
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370 debug( "try to close server with id:", tostring(self.id)) |
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371 self.fatalerror = "server to close" |
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372 self:_lock( true ) |
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373 self:_close( 0 ) |
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374 return true |
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375 end |
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376 end |
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378 function interface_mt:socket() |
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379 return self.conn |
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380 end |
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381 |
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382 function interface_mt:server() |
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383 return self._server or self; |
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384 end |
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386 function interface_mt:port() |
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387 return self._port |
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388 end |
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390 function interface_mt:serverport() |
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391 return self._serverport |
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392 end |
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393 |
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394 function interface_mt:ip() |
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395 return self._ip |
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396 end |
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397 |
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398 function interface_mt:ssl() |
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399 return self._usingssl |
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400 end |
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401 interface_mt.clientport = interface_mt.port -- COMPAT server_select |
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403 function interface_mt:type() |
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404 return self._type or "client" |
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405 end |
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407 function interface_mt:connections() |
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408 return self._connections |
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409 end |
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411 function interface_mt:address() |
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412 return self.addr |
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413 end |
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414 |
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415 function interface_mt:set_sslctx(sslctx) |
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416 self._sslctx = sslctx; |
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417 if sslctx then |
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418 self.starttls = nil; -- use starttls() of interface_mt |
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419 else |
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420 self.starttls = false; -- prevent starttls() |
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421 end |
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422 end |
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423 |
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424 function interface_mt:set_mode(pattern) |
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425 if pattern then |
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426 self._pattern = pattern; |
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427 end |
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428 return self._pattern; |
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429 end |
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431 function interface_mt:set_send(new_send) -- luacheck: ignore 212 | |
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432 -- No-op, we always use the underlying connection's send |
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433 end |
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434 |
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435 function interface_mt:starttls(sslctx, call_onconnect) |
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436 debug( "try to start ssl at client id:", self.id ) |
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437 local err |
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438 self._sslctx = sslctx; |
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439 if self._usingssl then -- startssl was already called |
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440 err = "ssl already active" |
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441 end |
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442 if err then |
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443 debug( "error:", err ) |
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444 return nil, err |
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445 end |
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446 self._usingssl = true |
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447 self.startsslcallback = function( ) -- we have to start the handshake outside of a read/write event |
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448 self.startsslcallback = nil |
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449 self:_start_ssl(call_onconnect); |
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450 self.eventstarthandshake = nil |
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451 return -1 |
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452 end |
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453 if not self.eventwrite then |
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454 self:_lock( true, true, true ) -- lock the interface, to not disturb the handshake |
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455 self.eventstarthandshake = addevent( base, nil, EV_TIMEOUT, self.startsslcallback, 0 ) -- add event to start handshake |
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456 else |
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457 -- wait until writebuffer is empty |
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458 self:_lock( true, true, false ) |
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459 debug "ssl session delayed until writebuffer is empty..." |
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460 end |
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461 self.starttls = false; |
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462 return true |
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463 end |
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464 |
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465 function interface_mt:setoption(option, value) |
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466 if self.conn.setoption then |
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467 return self.conn:setoption(option, value); |
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468 end |
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469 return false, "setoption not implemented"; |
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470 end |
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471 |
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472 function interface_mt:setlistener(listener, data) |
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473 self:ondetach(); -- Notify listener that it is no longer responsible for this connection |
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474 self.onconnect = listener.onconnect; |
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475 self.ondisconnect = listener.ondisconnect; |
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476 self.onincoming = listener.onincoming; |
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477 self.ontimeout = listener.ontimeout; |
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478 self.onreadtimeout = listener.onreadtimeout; |
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479 self.onstatus = listener.onstatus; |
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480 self.ondetach = listener.ondetach; |
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481 self.onattach = listener.onattach; |
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482 self.onpredrain = listener.onpredrain; |
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483 self.ondrain = listener.ondrain; |
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484 self:onattach(data); |
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485 end |
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486 |
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487 -- Stub handlers |
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488 function interface_mt:onconnect() |
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489 end |
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490 function interface_mt:onincoming() |
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491 end |
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492 function interface_mt:ondisconnect() |
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493 end |
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494 function interface_mt:ontimeout() |
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495 end |
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496 function interface_mt:onreadtimeout() |
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497 end |
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498 function interface_mt:onpredrain() |
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499 end |
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500 function interface_mt:ondrain() |
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501 end |
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502 function interface_mt:ondetach() |
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503 end |
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504 function interface_mt:onattach() |
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505 end |
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506 function interface_mt:onstatus() |
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507 end |
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508 |
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509 -- End of client interface methods |
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510 |
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511 local function handleclient( client, ip, port, server, pattern, listener, sslctx, extra ) -- creates an client interface |
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512 --vdebug("creating client interfacce...") |
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513 local interface = { |
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514 type = "client"; |
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515 conn = client; |
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516 currenttime = socket_gettime( ); -- safe the origin |
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517 writebuffer = {}; -- writebuffer |
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518 writebufferlen = 0; -- length of writebuffer |
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519 send = client.send; -- caching table lookups |
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520 receive = client.receive; |
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521 onconnect = listener.onconnect; -- will be called when client disconnects |
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522 ondisconnect = listener.ondisconnect; -- will be called when client disconnects |
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523 onincoming = listener.onincoming; -- will be called when client sends data |
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524 ontimeout = listener.ontimeout; -- called when fatal socket timeout occurs |
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525 onreadtimeout = listener.onreadtimeout; -- called when socket inactivity timeout occurs |
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526 onpredrain = listener.onpredrain; -- called before writes |
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527 ondrain = listener.ondrain; -- called when writebuffer is empty |
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528 ondetach = listener.ondetach; -- called when disassociating this listener from this connection |
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529 onstatus = listener.onstatus; -- called for status changes (e.g. of SSL/TLS) |
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530 eventread = false, eventwrite = false, eventclose = false, |
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531 eventhandshake = false, eventstarthandshake = false; -- event handler |
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532 eventconnect = false, eventsession = false; -- more event handler... |
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533 eventwritetimeout = false; -- even more event handler... |
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534 eventreadtimeout = false; |
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535 fatalerror = false; -- error message |
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536 writecallback = false; -- will be called on write events |
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537 readcallback = false; -- will be called on read events |
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538 nointerface = true; -- lock/unlock parameter of this interface |
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539 noreading = false, nowriting = false; -- locks of the read/writecallback |
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540 startsslcallback = false; -- starting handshake callback |
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541 position = false; -- position of client in interfacelist |
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542 |
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543 -- Properties |
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544 _ip = ip, _port = port, _server = server, _pattern = pattern, |
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545 _serverport = (server and server:port() or nil), |
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546 _sslctx = sslctx; -- parameters |
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547 _usingssl = false; -- client is using ssl; |
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548 extra = extra; |
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549 servername = extra and extra.servername; |
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550 } |
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551 if not has_luasec then interface.starttls = false; end |
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552 interface.id = tostring(interface):match("%x+$"); |
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553 interface.writecallback = function( event ) -- called on write events |
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554 --vdebug( "new client write event, id/ip/port:", interface, ip, port ) |
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555 if interface.nowriting or ( interface.fatalerror and ( "client to close" ~= interface.fatalerror ) ) then -- leave this event |
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556 --vdebug( "leaving this event because:", interface.nowriting or interface.fatalerror ) |
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557 interface.eventwrite = false |
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558 return -1 |
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559 end |
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560 if EV_TIMEOUT == event then -- took too long to write some data to socket -> disconnect |
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561 interface.fatalerror = "timeout during writing" |
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562 debug( "writing failed:", interface.fatalerror ) |
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563 interface:_close() |
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564 interface.eventwrite = false |
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565 return -1 |
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566 else -- can write :) |
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567 if interface._usingssl then -- handle luasec |
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568 if interface.eventreadtimeout then -- we have to read first |
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569 local ret = interface.readcallback( ) -- call readcallback |
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570 --vdebug( "tried to read in writecallback, result:", ret ) |
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571 end |
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572 if interface.eventwritetimeout then -- luasec only |
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573 interface.eventwritetimeout:close( ) -- first we have to close timeout event which where registered after a wantread error |
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574 interface.eventwritetimeout = false |
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575 end |
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576 end |
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577 interface:onpredrain(); |
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578 interface.writebuffer = { t_concat(interface.writebuffer) } |
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579 local succ, err, byte = interface.conn:send( interface.writebuffer[1], 1, interface.writebufferlen ) |
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580 --vdebug( "write data:", interface.writebuffer, "error:", err, "part:", byte ) |
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581 if succ then -- writing successful |
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582 interface.writebuffer[1] = nil |
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583 interface.writebufferlen = 0 |
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584 interface:ondrain(); |
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585 if interface.fatalerror then |
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586 debug "closing client after writing" |
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587 interface:_close() -- close interface if needed |
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588 elseif interface.startsslcallback then -- start ssl connection if needed |
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589 debug "starting ssl handshake after writing" |
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590 interface.eventstarthandshake = addevent( base, nil, EV_TIMEOUT, interface.startsslcallback, 0 ) |
7399 | 591 elseif interface.writebufferlen ~= 0 then |
7394 | 592 -- data possibly written from ondrain |
593 return EV_WRITE, cfg.WRITE_TIMEOUT | |
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594 elseif interface.eventreadtimeout then |
7385 | 595 return EV_WRITE, cfg.WRITE_TIMEOUT |
596 end | |
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597 interface.eventwrite = nil |
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598 return -1 |
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599 elseif byte and (err == "timeout" or err == "wantwrite") then -- want write again |
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600 --vdebug( "writebuffer is not empty:", err ) |
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601 interface.writebuffer[1] = s_sub( interface.writebuffer[1], byte + 1, interface.writebufferlen ) -- new buffer |
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602 interface.writebufferlen = interface.writebufferlen - byte |
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603 if "wantread" == err then -- happens only with luasec |
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604 local callback = function( ) |
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605 interface:_close() |
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606 interface.eventwritetimeout = nil |
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607 return -1; |
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608 end |
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609 interface.eventwritetimeout = addevent( base, nil, EV_TIMEOUT, callback, cfg.WRITE_TIMEOUT ) -- reg a new timeout event |
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610 debug( "wantread during write attempt, reg it in readcallback but don't know what really happens next..." ) |
7336
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611 -- hopefully this works with luasec; its simply not possible to use 2 different write events on a socket in luaevent |
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612 return -1 |
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613 end |
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614 return EV_WRITE, cfg.WRITE_TIMEOUT |
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615 else -- connection was closed during writing or fatal error |
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616 interface.fatalerror = err or "fatal error" |
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617 debug( "connection failed in write event:", interface.fatalerror ) |
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618 interface:_close() |
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619 interface.eventwrite = nil |
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620 return -1 |
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621 end |
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622 end |
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623 end |
7224 | 624 |
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625 interface.readcallback = function( event ) -- called on read events |
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626 --vdebug( "new client read event, id/ip/port:", tostring(interface.id), tostring(ip), tostring(port) ) |
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627 if interface.noreading or interface.fatalerror then -- leave this event |
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628 --vdebug( "leaving this event because:", tostring(interface.noreading or interface.fatalerror) ) |
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629 interface.eventread = nil |
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630 return -1 |
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631 end |
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632 if EV_TIMEOUT == event and not interface.conn:dirty() and interface:onreadtimeout() ~= true then |
7688
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633 interface.fatalerror = "timeout during receiving" |
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634 debug( "connection failed:", interface.fatalerror ) |
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635 interface:_close() |
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636 interface.eventread = nil |
6851
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637 return -1 -- took too long to get some data from client -> disconnect |
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638 end |
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639 if interface._usingssl then -- handle luasec |
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640 if interface.eventwritetimeout then -- ok, in the past writecallback was registered |
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641 local ret = interface.writecallback( ) -- call it |
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642 --vdebug( "tried to write in readcallback, result:", tostring(ret) ) |
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643 end |
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644 if interface.eventreadtimeout then |
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645 interface.eventreadtimeout:close( ) |
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646 interface.eventreadtimeout = nil |
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647 end |
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648 end |
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649 local buffer, err, part = interface.conn:receive( interface._pattern ) -- receive buffer with "pattern" |
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650 --vdebug( "read data:", tostring(buffer), "error:", tostring(err), "part:", tostring(part) ) |
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651 buffer = buffer or part |
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652 if buffer and #buffer > cfg.MAX_READ_LENGTH then -- check buffer length |
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653 interface.fatalerror = "receive buffer exceeded" |
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654 debug( "fatal error:", interface.fatalerror ) |
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655 interface:_close() |
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656 interface.eventread = nil |
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657 return -1 |
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658 end |
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659 if err and ( err ~= "timeout" and err ~= "wantread" ) then |
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660 if "wantwrite" == err then -- need to read on write event |
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661 if not interface.eventwrite then -- register new write event if needed |
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662 interface.eventwrite = addevent( base, interface.conn, EV_WRITE, interface.writecallback, cfg.WRITE_TIMEOUT ) |
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663 end |
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664 interface.eventreadtimeout = addevent( base, nil, EV_TIMEOUT, |
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665 function( ) interface:_close() end, cfg.READ_TIMEOUT) |
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666 debug( "wantwrite during read attempt, reg it in writecallback but don't know what really happens next..." ) |
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667 -- to be honest i don't know what happens next, if it is allowed to first read, the write etc... |
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668 else -- connection was closed or fatal error |
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669 interface.fatalerror = err |
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670 debug( "connection failed in read event:", interface.fatalerror ) |
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671 interface:_close() |
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672 interface.eventread = nil |
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673 return -1 |
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674 end |
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675 else |
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676 interface.onincoming( interface, buffer, err ) -- send new data to listener |
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677 end |
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678 if interface.noreading then |
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679 interface.eventread = nil; |
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680 return -1; |
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681 end |
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7419
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changeset
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682 if interface.conn:dirty() then -- still data left in buffer |
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683 return EV_TIMEOUT, cfg.READ_RETRY_DELAY; |
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684 end |
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685 return EV_READ, cfg.READ_TIMEOUT |
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686 end |
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687 |
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688 client:settimeout( 0 ) -- set non blocking |
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689 setmetatable(interface, interface_mt) |
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690 interfacelist[ interface ] = true -- add to interfacelist |
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691 return interface |
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692 end |
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|
693 |
9897
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diff
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694 local function handleserver( server, addr, port, pattern, listener, sslctx, startssl ) -- creates a server interface |
7336
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695 debug "creating server interface..." |
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|
696 local interface = { |
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697 _connections = 0; |
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698 |
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699 type = "server"; |
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|
700 conn = server; |
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parents:
7224
diff
changeset
|
701 onconnect = listener.onconnect; -- will be called when new client connected |
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diff
changeset
|
702 eventread = false; -- read event handler |
0d9ac472e58c
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diff
changeset
|
703 eventclose = false; -- close event handler |
0d9ac472e58c
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diff
changeset
|
704 readcallback = false; -- read event callback |
0d9ac472e58c
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parents:
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diff
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|
705 fatalerror = false; -- error message |
0d9ac472e58c
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parents:
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diff
changeset
|
706 nointerface = true; -- lock/unlock parameter |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
7224
diff
changeset
|
707 |
0d9ac472e58c
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diff
changeset
|
708 _ip = addr, _port = port, _pattern = pattern, |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
709 _sslctx = sslctx; |
9850
9a905888b96c
net.server_event: Add SNI support (#409)
Kim Alvefur <zash@zash.se>
parents:
9835
diff
changeset
|
710 hosts = {}; |
7336
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
711 } |
0d9ac472e58c
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parents:
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diff
changeset
|
712 interface.id = tostring(interface):match("%x+$"); |
0d9ac472e58c
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diff
changeset
|
713 interface.readcallback = function( event ) -- server handler, called on incoming connections |
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server_event: Fix indentation (again)
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parents:
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diff
changeset
|
714 --vdebug( "server can accept, id/addr/port:", interface, addr, port ) |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
715 if interface.fatalerror then |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
716 --vdebug( "leaving this event because:", self.fatalerror ) |
0d9ac472e58c
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parents:
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diff
changeset
|
717 interface.eventread = nil |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
718 return -1 |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
719 end |
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Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
720 local delay = cfg.ACCEPT_DELAY |
0d9ac472e58c
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parents:
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diff
changeset
|
721 if EV_TIMEOUT == event then |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
722 if interface._connections >= cfg.MAX_CONNECTIONS then -- check connection count |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
723 debug( "to many connections, seconds to wait for next accept:", delay ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
724 return EV_TIMEOUT, delay -- timeout... |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
725 else |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
726 return EV_READ -- accept again |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
727 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
728 end |
7336
0d9ac472e58c
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parents:
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diff
changeset
|
729 --vdebug("max connection check ok, accepting...") |
10547
c77471c180ea
net.server_event: Silence luacheck warnings
Kim Alvefur <zash@zash.se>
parents:
10407
diff
changeset
|
730 -- luacheck: ignore 231/err |
7336
0d9ac472e58c
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diff
changeset
|
731 local client, err = server:accept() -- try to accept; TODO: check err |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
732 while client do |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
733 if interface._connections >= cfg.MAX_CONNECTIONS then |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
734 client:close( ) -- refuse connection |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
735 debug( "maximal connections reached, refuse client connection; accept delay:", delay ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
736 return EV_TIMEOUT, delay -- delay for next accept attempt |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
737 end |
0d9ac472e58c
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parents:
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diff
changeset
|
738 local client_ip, client_port = client:getpeername( ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
739 interface._connections = interface._connections + 1 -- increase connection count |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
740 local clientinterface = handleclient( client, client_ip, client_port, interface, pattern, listener, sslctx ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
741 --vdebug( "client id:", clientinterface, "startssl:", startssl ) |
9835
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
742 if has_luasec and startssl then |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
743 clientinterface:starttls(sslctx, true) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
744 else |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
745 clientinterface:_start_session( true ) |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
746 end |
7336
0d9ac472e58c
server_event: Fix indentation (again)
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diff
changeset
|
747 debug( "accepted incoming client connection from:", client_ip or "<unknown IP>", client_port or "<unknown port>", "to", port or "<unknown port>"); |
2318
a831de056de3
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parents:
2303
diff
changeset
|
748 |
7336
0d9ac472e58c
server_event: Fix indentation (again)
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diff
changeset
|
749 client, err = server:accept() -- try to accept again |
2318
a831de056de3
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parents:
2303
diff
changeset
|
750 end |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
751 return EV_READ |
0d9ac472e58c
server_event: Fix indentation (again)
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parents:
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diff
changeset
|
752 end |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
753 |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
754 server:settimeout( 0 ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
755 setmetatable(interface, interface_mt) |
7224 | 756 interfacelist[ interface ] = true |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
757 interface:_start_session() |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
758 return interface |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
759 end |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
760 |
9835
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
761 local function listen(addr, port, listener, config) |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
762 config = config or {} |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
763 if config.sslctx and not has_luasec then |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
764 debug "fatal error: luasec not found" |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
765 return nil, "luasec not found" |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
766 end |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
767 local server, err = socket.bind( addr, port, cfg.ACCEPT_QUEUE ) -- create server socket |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
768 if not server then |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
769 debug( "creating server socket on "..addr.." port "..port.." failed:", err ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
770 return nil, err |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
771 end |
9835
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
772 local interface = handleserver( server, addr, port, config.read_size, listener, config.tls_ctx, config.tls_direct) -- new server handler |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
773 debug( "new server created with id:", tostring(interface)) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
774 return interface |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
775 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
776 |
9835
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
777 local function addserver( addr, port, listener, pattern, sslctx ) -- TODO: check arguments |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
778 --vdebug( "creating new tcp server with following parameters:", addr or "nil", port or "nil", sslctx or "nil", startssl or "nil") |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
779 return listen( addr, port, listener, { |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
780 read_size = pattern, |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
781 tls_ctx = sslctx, |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
782 tls_direct = not not sslctx, |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
783 }); |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
784 end |
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
changeset
|
785 |
11063
30d3f6f85eb8
net.server: Backport client parts of SNI support from trunk (#409)
Kim Alvefur <zash@zash.se>
parents:
9499
diff
changeset
|
786 local function wrapclient( client, ip, port, listeners, pattern, sslctx, extra ) |
30d3f6f85eb8
net.server: Backport client parts of SNI support from trunk (#409)
Kim Alvefur <zash@zash.se>
parents:
9499
diff
changeset
|
787 local interface = handleclient( client, ip, port, nil, pattern, listeners, sslctx, extra ) |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
788 interface:_start_connection(sslctx) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
789 return interface, client |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
790 --function handleclient( client, ip, port, server, pattern, listener, _, sslctx ) -- creates an client interface |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
791 end |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
792 |
11063
30d3f6f85eb8
net.server: Backport client parts of SNI support from trunk (#409)
Kim Alvefur <zash@zash.se>
parents:
9499
diff
changeset
|
793 local function addclient( addr, serverport, listener, pattern, sslctx, typ, extra ) |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
794 if sslctx and not has_luasec then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
795 debug "need luasec, but not available" |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
796 return nil, "luasec not found" |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
797 end |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
798 if not typ then |
9473
5fdda751333a
net.server: Require IP address as argument to addclient (no DNS names)
Kim Alvefur <zash@zash.se>
parents:
9387
diff
changeset
|
799 local n = inet_pton(addr); |
5fdda751333a
net.server: Require IP address as argument to addclient (no DNS names)
Kim Alvefur <zash@zash.se>
parents:
9387
diff
changeset
|
800 if not n then return nil, "invalid-ip"; end |
5fdda751333a
net.server: Require IP address as argument to addclient (no DNS names)
Kim Alvefur <zash@zash.se>
parents:
9387
diff
changeset
|
801 if #n == 16 then |
5fdda751333a
net.server: Require IP address as argument to addclient (no DNS names)
Kim Alvefur <zash@zash.se>
parents:
9387
diff
changeset
|
802 typ = "tcp6"; |
5fdda751333a
net.server: Require IP address as argument to addclient (no DNS names)
Kim Alvefur <zash@zash.se>
parents:
9387
diff
changeset
|
803 elseif #n == 4 then |
5fdda751333a
net.server: Require IP address as argument to addclient (no DNS names)
Kim Alvefur <zash@zash.se>
parents:
9387
diff
changeset
|
804 typ = "tcp4"; |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
805 end |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
806 end |
9495
89e05b118f6e
net.server: Remove socket constructor fallback
Kim Alvefur <zash@zash.se>
parents:
9473
diff
changeset
|
807 local create = socket[typ]; |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
808 if type( create ) ~= "function" then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
809 return nil, "invalid socket type" |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
810 end |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
811 local client, err = create() -- creating new socket |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
812 if not client then |
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
813 debug( "cannot create socket:", err ) |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
814 return nil, err |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
815 end |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
816 client:settimeout( 0 ) -- set nonblocking |
9499
36e379f058c8
net.server: Swich method for connecting sockets with remotes
Kim Alvefur <zash@zash.se>
parents:
9495
diff
changeset
|
817 local res, err = client:setpeername( addr, serverport ) -- connect |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
818 if res or ( err == "timeout" ) then |
10547
c77471c180ea
net.server_event: Silence luacheck warnings
Kim Alvefur <zash@zash.se>
parents:
10407
diff
changeset
|
819 -- luacheck: ignore 211/port |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
820 local ip, port = client:getsockname( ) |
11063
30d3f6f85eb8
net.server: Backport client parts of SNI support from trunk (#409)
Kim Alvefur <zash@zash.se>
parents:
9499
diff
changeset
|
821 local interface = wrapclient( client, ip, serverport, listener, pattern, sslctx, extra ) |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
822 debug( "new connection id:", interface.id ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
823 return interface, err |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
824 else |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
825 debug( "new connection failed:", err ) |
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
826 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
|
827 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
828 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
829 |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
830 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
|
831 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
|
832 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
|
833 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
834 |
6850
41de00647ad3
server_event: Move local references to various functions to top of file
Kim Alvefur <zash@zash.se>
parents:
6849
diff
changeset
|
835 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
|
836 return addevent( base, ... ) |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
837 end |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
838 |
6851
1f1bed8ebc41
server_event: Remove needless scoping and indentation
Kim Alvefur <zash@zash.se>
parents:
6850
diff
changeset
|
839 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
|
840 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
|
841 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
|
842 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
|
843 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
844 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
845 end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
846 |
2335
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
847 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
|
848 if yes then |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
849 -- Quit now |
8751
469f78fe1c3e
net.server_event: Don't close servers if just quitting the loop once
Matthew Wild <mwild1@gmail.com>
parents:
8728
diff
changeset
|
850 if yes ~= "once" then |
469f78fe1c3e
net.server_event: Don't close servers if just quitting the loop once
Matthew Wild <mwild1@gmail.com>
parents:
8728
diff
changeset
|
851 closeallservers(); |
469f78fe1c3e
net.server_event: Don't close servers if just quitting the loop once
Matthew Wild <mwild1@gmail.com>
parents:
8728
diff
changeset
|
852 end |
7336
0d9ac472e58c
server_event: Fix indentation (again)
Kim Alvefur <zash@zash.se>
parents:
7224
diff
changeset
|
853 base:loopexit(); |
2335
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
854 end |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
855 end |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
856 |
4399
1b4161970842
net.server_event, net.server_select: Fixed some global pollution.
Waqas Hussain <waqas20@gmail.com>
parents:
4377
diff
changeset
|
857 local function get_backend() |
8314
1d2149d84c72
net.server_event: Add "libevent" to backend description
Kim Alvefur <zash@zash.se>
parents:
7810
diff
changeset
|
858 return "libevent " .. base:method(); |
2340
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
859 end |
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
860 |
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
|
861 -- 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
|
862 -- 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
|
863 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
|
864 local function hook_signal(signal_num, handler) |
6856
489f4ae291bf
server_event: Remove unused argument [luacheck]
Kim Alvefur <zash@zash.se>
parents:
6855
diff
changeset
|
865 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
|
866 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
|
867 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
|
868 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
|
869 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
|
870 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
|
871 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
|
872 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
|
873 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
|
874 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
|
875 |
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
|
876 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
|
877 local sender_locked; |
5776
bd0ff8ae98a8
Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
5756
diff
changeset
|
878 |
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
|
879 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
|
880 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
|
881 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
|
882 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
|
883 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
|
884 end |
5776
bd0ff8ae98a8
Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
5756
diff
changeset
|
885 |
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
|
886 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
|
887 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
|
888 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
|
889 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
|
890 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
|
891 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
|
892 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
|
893 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
|
894 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
|
895 |
6862
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
896 local function add_task(delay, callback) |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
897 local event_handle; |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
898 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
|
899 local ret = callback(socket_gettime()); |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
900 if ret then |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
901 return 0, ret; |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
902 elseif event_handle then |
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
903 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
|
904 end |
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
905 end |
6862
7a81fb23de5d
server_event: Remove needless scoping around add_task
Kim Alvefur <zash@zash.se>
parents:
6861
diff
changeset
|
906 , delay); |
6929
03bc9e197fcc
net.server_event: Return event handle from add_task so it can be closed by eg util.timer
Kim Alvefur <zash@zash.se>
parents:
6862
diff
changeset
|
907 return event_handle; |
6481
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
908 end |
dbc72cd1332e
Move timer code out of util.timer and into relevant net.server backends
daurnimator <quae@daurnimator.com>
parents:
6383
diff
changeset
|
909 |
8781
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
910 local function watchfd(fd, onreadable, onwriteable) |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
911 local handle = {}; |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
912 function handle:setflags(r,w) |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
913 if r ~= nil then |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
914 if r and not self.wantread then |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
915 self.wantread = base:addevent(fd, EV_READ, function () |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
916 onreadable(self); |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
917 end); |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
918 elseif not r and self.wantread then |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
919 self.wantread:close(); |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
920 self.wantread = nil; |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
921 end |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
922 end |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
923 if w ~= nil then |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
924 if w and not self.wantwrite then |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
925 self.wantwrite = base:addevent(fd, EV_WRITE, function () |
53178b6ba589
net.server: Add watchfd, a simple API for watching file descriptors
Kim Alvefur <zash@zash.se>
parents:
8751
diff
changeset
|
926 onwriteable(self); |
53178b6ba589
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927 end); |
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928 elseif not r and self.wantread then |
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929 self.wantwrite:close(); |
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930 self.wantwrite = nil; |
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931 end |
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932 end |
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933 end |
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934 handle:setflags(onreadable, onwriteable); |
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935 return handle; |
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936 end |
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937 |
2318
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938 return { |
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939 cfg = cfg, |
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940 base = base, |
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941 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
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|
942 link = link, |
6853
a2cc477eb19b
server_event: Rename luaevent module variable to avoid name clash [luacheck]
Kim Alvefur <zash@zash.se>
parents:
6852
diff
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|
943 event = levent, |
2318
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944 event_base = base, |
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945 addevent = newevent, |
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946 addserver = addserver, |
9835
20bf5b47c1fb
net.server: New API for creating server listeners
Kim Alvefur <zash@zash.se>
parents:
9581
diff
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|
947 listen = listen, |
2318
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948 addclient = addclient, |
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949 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
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|
950 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
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|
951 closeall = closeallservers, |
2340
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
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|
952 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
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|
953 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
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|
954 add_task = add_task, |
8781
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|
955 watchfd = watchfd, |
2318
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|
956 |
12481
2ee27587fec7
net: refactor sslconfig to not depend on LuaSec
Jonas Schäfer <jonas@wielicki.name>
parents:
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diff
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|
957 tls_builder = function(basedir) |
2ee27587fec7
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|
958 return sslconfig._new(tls_impl.new_context, basedir) |
2ee27587fec7
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|
959 end, |
2ee27587fec7
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|
960 |
2318
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961 __NAME = SCRIPT_NAME, |
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|
962 __DATE = LAST_MODIFIED, |
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|
963 __AUTHOR = SCRIPT_AUTHOR, |
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|
964 __VERSION = SCRIPT_VERSION, |
a831de056de3
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|
965 |
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diff
changeset
|
966 } |