Thu, 02 Dec 2010 22:55:42 +0500
net.server_select: Made some globals local.
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1 | --[[ |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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2 | |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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3 | |
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4 | server.lua based on lua/libevent by blastbeat |
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5 | |
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6 | notes: |
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7 | -- when using luaevent, never register 2 or more EV_READ at one socket, same for EV_WRITE |
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8 | -- you cant even register a new EV_READ/EV_WRITE callback inside another one |
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9 | -- never call eventcallback:close( ) from inside eventcallback |
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10 | -- to do some of the above, use timeout events or something what will called from outside |
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11 | -- dont let garbagecollect eventcallbacks, as long they are running |
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12 | -- when using luasec, there are 4 cases of timeout errors: wantread or wantwrite during reading or writing |
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13 | |
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14 | --]] |
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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_DELAY = 10, -- seconds to wait until the next attempt of a full server to accept |
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28 | READ_TIMEOUT = 60 * 60 * 6, -- timeout in seconds for read data from socket |
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29 | WRITE_TIMEOUT = 180, -- timeout in seconds for write data on socket |
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30 | CONNECT_TIMEOUT = 20, -- timeout in seconds for connection attempts |
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31 | CLEAR_DELAY = 5, -- seconds to wait for clearing interface list (and calling ondisconnect listeners) |
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32 | DEBUG = true, -- show debug messages |
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33 | } |
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34 | |
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35 | local function use(x) return rawget(_G, x); end |
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36 | local print = use "print" |
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37 | local pcall = use "pcall" |
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38 | local ipairs = use "ipairs" |
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39 | local string = use "string" |
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40 | local select = use "select" |
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41 | local require = use "require" |
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42 | local tostring = use "tostring" |
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43 | local coroutine = use "coroutine" |
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44 | local setmetatable = use "setmetatable" |
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45 | |
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46 | local ssl = use "ssl" |
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47 | local socket = use "socket" or require "socket" |
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48 | |
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49 | local log = require ("util.logger").init("socket") |
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50 | |
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51 | local function debug(...) |
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52 | return log("debug", ("%s "):rep(select('#', ...)), ...) |
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53 | end |
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54 | local vdebug = debug; |
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55 | |
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56 | local bitor = ( function( ) -- thx Rici Lake |
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57 | local hasbit = function( x, p ) |
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58 | return x % ( p + p ) >= p |
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59 | end |
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60 | return function( x, y ) |
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61 | local p = 1 |
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62 | local z = 0 |
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63 | local limit = x > y and x or y |
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64 | while p <= limit do |
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65 | if hasbit( x, p ) or hasbit( y, p ) then |
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66 | z = z + p |
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67 | end |
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68 | p = p + p |
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69 | end |
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70 | return z |
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71 | end |
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72 | end )( ) |
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73 | |
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74 | local event = require "luaevent.core" |
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75 | local base = event.new( ) |
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76 | local EV_READ = event.EV_READ |
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77 | local EV_WRITE = event.EV_WRITE |
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78 | local EV_TIMEOUT = event.EV_TIMEOUT |
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79 | local EV_SIGNAL = event.EV_SIGNAL |
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80 | |
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81 | local EV_READWRITE = bitor( EV_READ, EV_WRITE ) |
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82 | |
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83 | local interfacelist = ( function( ) -- holds the interfaces for sockets |
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84 | local array = { } |
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85 | local len = 0 |
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86 | return function( method, arg ) |
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87 | if "add" == method then |
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88 | len = len + 1 |
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89 | array[ len ] = arg |
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90 | arg:_position( len ) |
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91 | return len |
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92 | elseif "delete" == method then |
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93 | if len <= 0 then |
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94 | return nil, "array is already empty" |
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95 | end |
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96 | local position = arg:_position() -- get position in array |
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97 | if position ~= len then |
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98 | local interface = array[ len ] -- get last interface |
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99 | array[ position ] = interface -- copy it into free position |
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100 | array[ len ] = nil -- free last position |
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101 | interface:_position( position ) -- set new position in array |
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102 | else -- free last position |
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103 | array[ len ] = nil |
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104 | end |
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105 | len = len - 1 |
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106 | return len |
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107 | else |
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108 | return array |
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109 | end |
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110 | end |
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111 | end )( ) |
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112 | |
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113 | -- Client interface methods |
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114 | local interface_mt |
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115 | do |
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116 | interface_mt = {}; interface_mt.__index = interface_mt; |
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117 | |
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118 | local addevent = base.addevent |
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119 | local coroutine_wrap, coroutine_yield = coroutine.wrap,coroutine.yield |
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120 | local string_len = string.len |
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121 | |
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122 | -- Private methods |
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123 | function interface_mt:_position(new_position) |
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124 | self.position = new_position or self.position |
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125 | return self.position; |
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126 | end |
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127 | function interface_mt:_close() -- regs event to start self:_destroy() |
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128 | local callback = function( ) |
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129 | self:_destroy(); |
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130 | self.eventclose = nil |
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131 | return -1 |
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132 | end |
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133 | self.eventclose = addevent( base, nil, EV_TIMEOUT, callback, 0 ) |
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134 | return true |
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135 | end |
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136 | |
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137 | function interface_mt:_start_connection(plainssl) -- should be called from addclient |
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138 | local callback = function( event ) |
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139 | if EV_TIMEOUT == event then -- timeout during connection |
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140 | self.fatalerror = "connection timeout" |
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141 | self:ontimeout() -- call timeout listener |
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142 | self:_close() |
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143 | debug( "new connection failed. id:", self.id, "error:", self.fatalerror ) |
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144 | else |
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145 | if plainssl and ssl then -- start ssl session |
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146 | self:starttls(nil, true) |
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147 | else -- normal connection |
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148 | self:_start_session(true) |
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149 | end |
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150 | debug( "new connection established. id:", self.id ) |
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151 | end |
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152 | self.eventconnect = nil |
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153 | return -1 |
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154 | end |
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155 | self.eventconnect = addevent( base, self.conn, EV_WRITE, callback, cfg.CONNECT_TIMEOUT ) |
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156 | return true |
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157 | end |
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158 | function interface_mt:_start_session(call_onconnect) -- new session, for example after startssl |
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159 | if self.type == "client" then |
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160 | local callback = function( ) |
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161 | self:_lock( false, false, false ) |
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162 | --vdebug( "start listening on client socket with id:", self.id ) |
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163 | self.eventread = addevent( base, self.conn, EV_READ, self.readcallback, cfg.READ_TIMEOUT ); -- register callback |
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164 | if call_onconnect then |
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165 | self:onconnect() |
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166 | end |
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167 | self.eventsession = nil |
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168 | return -1 |
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169 | end |
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170 | self.eventsession = addevent( base, nil, EV_TIMEOUT, callback, 0 ) |
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171 | else |
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172 | self:_lock( false ) |
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173 | --vdebug( "start listening on server socket with id:", self.id ) |
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174 | self.eventread = addevent( base, self.conn, EV_READ, self.readcallback ) -- register callback |
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175 | end |
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176 | return true |
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177 | end |
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178 | 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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179 | --vdebug( "starting ssl session with client id:", self.id ) |
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180 | local _ |
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181 | _ = self.eventread and self.eventread:close( ) -- close events; this must be called outside of the event callbacks! |
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182 | _ = self.eventwrite and self.eventwrite:close( ) |
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183 | self.eventread, self.eventwrite = nil, nil |
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184 | local err |
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185 | self.conn, err = ssl.wrap( self.conn, self._sslctx ) |
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186 | if err then |
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187 | self.fatalerror = err |
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188 | self.conn = nil -- cannot be used anymore |
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189 | if call_onconnect then |
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190 | self.ondisconnect = nil -- dont call this when client isnt really connected |
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191 | end |
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192 | self:_close() |
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193 | debug( "fatal error while ssl wrapping:", err ) |
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194 | return false |
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195 | end |
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196 | self.conn:settimeout( 0 ) -- set non blocking |
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197 | local handshakecallback = coroutine_wrap( |
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198 | function( event ) |
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199 | local _, err |
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200 | local attempt = 0 |
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201 | local maxattempt = cfg.MAX_HANDSHAKE_ATTEMPTS |
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202 | while attempt < maxattempt do -- no endless loop |
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203 | attempt = attempt + 1 |
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204 | debug( "ssl handshake of client with id:"..tostring(self)..", attempt:"..attempt ) |
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205 | if attempt > maxattempt then |
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206 | self.fatalerror = "max handshake attempts exceeded" |
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207 | elseif EV_TIMEOUT == event then |
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208 | self.fatalerror = "timeout during handshake" |
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209 | else |
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210 | _, err = self.conn:dohandshake( ) |
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211 | if not err then |
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212 | self:_lock( false, false, false ) -- unlock the interface; sending, closing etc allowed |
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213 | self.send = self.conn.send -- caching table lookups with new client object |
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214 | self.receive = self.conn.receive |
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215 | local onsomething |
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216 | if not call_onconnect then -- trigger listener |
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217 | self:onstatus("ssl-handshake-complete"); |
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218 | end |
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219 | self:_start_session( call_onconnect ) |
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220 | debug( "ssl handshake done" ) |
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221 | self.eventhandshake = nil |
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222 | return -1 |
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223 | end |
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224 | debug( "error during ssl handshake:", err ) |
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225 | if err == "wantwrite" then |
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226 | event = EV_WRITE |
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227 | elseif err == "wantread" then |
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228 | event = EV_READ |
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229 | else |
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230 | self.fatalerror = err |
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231 | end |
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232 | end |
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233 | if self.fatalerror then |
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234 | if call_onconnect then |
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235 | self.ondisconnect = nil -- dont call this when client isnt really connected |
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236 | end |
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237 | self:_close() |
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238 | debug( "handshake failed because:", self.fatalerror ) |
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239 | self.eventhandshake = nil |
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240 | return -1 |
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241 | end |
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242 | event = coroutine_yield( event, cfg.HANDSHAKE_TIMEOUT ) -- yield this monster... |
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243 | end |
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244 | end |
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245 | ) |
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246 | debug "starting handshake..." |
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247 | self:_lock( false, true, true ) -- unlock read/write events, but keep interface locked |
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248 | self.eventhandshake = addevent( base, self.conn, EV_READWRITE, handshakecallback, cfg.HANDSHAKE_TIMEOUT ) |
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249 | return true |
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250 | end |
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251 | function interface_mt:_destroy() -- close this interface + events and call last listener |
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252 | debug( "closing client with id:", self.id ) |
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253 | self:_lock( true, true, true ) -- first of all, lock the interface to avoid further actions |
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254 | local _ |
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255 | _ = self.eventread and self.eventread:close( ) -- close events; this must be called outside of the event callbacks! |
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256 | if self.type == "client" then |
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257 | _ = self.eventwrite and self.eventwrite:close( ) |
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258 | _ = self.eventhandshake and self.eventhandshake:close( ) |
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259 | _ = self.eventstarthandshake and self.eventstarthandshake:close( ) |
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260 | _ = self.eventconnect and self.eventconnect:close( ) |
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261 | _ = self.eventsession and self.eventsession:close( ) |
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262 | _ = self.eventwritetimeout and self.eventwritetimeout:close( ) |
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263 | _ = self.eventreadtimeout and self.eventreadtimeout:close( ) |
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264 | _ = self.ondisconnect and self:ondisconnect( self.fatalerror ~= "client to close" and self.fatalerror) -- call ondisconnect listener (wont be the case if handshake failed on connect) |
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265 | _ = self.conn and self.conn:close( ) -- close connection, must also be called outside of any socket registered events! |
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266 | _ = self._server and self._server:counter(-1); |
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267 | self.eventread, self.eventwrite = nil, nil |
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268 | self.eventstarthandshake, self.eventhandshake, self.eventclose = nil, nil, nil |
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269 | self.readcallback, self.writecallback = nil, nil |
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270 | else |
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271 | self.conn:close( ) |
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272 | self.eventread, self.eventclose = nil, nil |
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273 | self.interface, self.readcallback = nil, nil |
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274 | end |
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275 | interfacelist( "delete", self ) |
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276 | return true |
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277 | end |
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278 | |
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279 | function interface_mt:_lock(nointerface, noreading, nowriting) -- lock or unlock this interface or events |
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280 | self.nointerface, self.noreading, self.nowriting = nointerface, noreading, nowriting |
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281 | return nointerface, noreading, nowriting |
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282 | end |
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283 | |
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284 | --TODO: Deprecate |
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285 | function interface_mt:lock_read(switch) |
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286 | if switch then |
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287 | return self:pause(); |
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288 | else |
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289 | return self:resume(); |
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290 | end |
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291 | end |
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292 | |
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293 | function interface_mt:pause() |
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294 | return self:_lock(self.nointerface, true, self.nowriting); |
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295 | end |
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296 | |
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297 | function interface_mt:resume() |
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298 | return self:_lock(self.nointerface, false, self.nowriting); |
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299 | end |
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300 | |
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301 | function interface_mt:counter(c) |
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302 | if c then |
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303 | self._connections = self._connections + c |
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304 | end |
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305 | return self._connections |
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306 | end |
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307 | |
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308 | -- Public methods |
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309 | function interface_mt:write(data) |
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310 | if self.nowriting then return nil, "locked" end |
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311 | --vdebug( "try to send data to client, id/data:", self.id, data ) |
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312 | data = tostring( data ) |
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313 | local len = string_len( data ) |
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314 | local total = len + self.writebufferlen |
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315 | if total > cfg.MAX_SEND_LENGTH then -- check buffer length |
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316 | local err = "send buffer exceeded" |
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317 | debug( "error:", err ) -- to much, check your app |
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318 | return nil, err |
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319 | end |
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320 | self.writebuffer = self.writebuffer .. data -- new buffer |
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321 | self.writebufferlen = total |
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322 | if not self.eventwrite then -- register new write event |
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323 | --vdebug( "register new write event" ) |
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324 | self.eventwrite = addevent( base, self.conn, EV_WRITE, self.writecallback, cfg.WRITE_TIMEOUT ) |
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325 | end |
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326 | return true |
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327 | end |
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328 | function interface_mt:close(now) |
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329 | if self.nointerface then return nil, "locked"; end |
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330 | debug( "try to close client connection with id:", self.id ) |
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331 | if self.type == "client" then |
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332 | self.fatalerror = "client to close" |
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333 | if ( not self.eventwrite ) or now then -- try to close immediately |
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334 | self:_lock( true, true, true ) |
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335 | self:_close() |
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336 | return true |
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337 | else -- wait for incomplete write request |
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338 | self:_lock( true, true, false ) |
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339 | debug "closing delayed until writebuffer is empty" |
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340 | return nil, "writebuffer not empty, waiting" |
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341 | end |
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342 | else |
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343 | debug( "try to close server with id:", self.id, "args:", now ) |
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344 | self.fatalerror = "server to close" |
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345 | self:_lock( true ) |
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346 | local count = 0 |
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347 | for _, item in ipairs( interfacelist( ) ) do |
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348 | if ( item.type ~= "server" ) and ( item._server == self ) then -- client/server match |
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349 | if item:close( now ) then -- writebuffer was empty |
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350 | count = count + 1 |
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351 | end |
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352 | end |
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353 | end |
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354 | local timeout = 0 -- dont wait for unfinished writebuffers of clients... |
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355 | if not now then |
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356 | timeout = cfg.WRITE_TIMEOUT -- ...or wait for it |
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357 | end |
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358 | self:_close( timeout ) -- add new event to remove the server interface |
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359 | debug( "seconds remained until server is closed:", timeout ) |
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360 | return count -- returns finished clients with empty writebuffer |
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361 | end |
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362 | end |
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363 | |
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364 | function interface_mt:socket() |
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365 | return self.conn |
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366 | end |
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367 | |
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368 | function interface_mt:server() |
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369 | return self._server or self; |
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370 | end |
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371 | |
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372 | function interface_mt:port() |
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373 | return self._port |
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374 | end |
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375 | |
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376 | function interface_mt:serverport() |
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377 | return self._serverport |
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378 | end |
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379 | |
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380 | function interface_mt:ip() |
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381 | return self._ip |
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382 | end |
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383 | |
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384 | function interface_mt:ssl() |
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385 | return self._usingssl |
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386 | end |
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387 | |
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388 | function interface_mt:type() |
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389 | return self._type or "client" |
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390 | end |
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391 | |
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392 | function interface_mt:connections() |
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393 | return self._connections |
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394 | end |
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395 | |
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396 | function interface_mt:address() |
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397 | return self.addr |
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398 | end |
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399 | |
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400 | function interface_mt:set_sslctx(sslctx) |
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401 | self._sslctx = sslctx; |
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402 | if sslctx then |
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403 | self.starttls = nil; -- use starttls() of interface_mt |
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404 | else |
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405 | self.starttls = false; -- prevent starttls() |
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406 | end |
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407 | end |
3001
fa00c6f563b4
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408 | |
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409 | function interface_mt:set_mode(pattern) |
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410 | if pattern then |
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411 | self._pattern = pattern; |
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412 | end |
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413 | return self._pattern; |
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414 | end |
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415 | |
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416 | function interface_mt:set_send(new_send) |
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417 | -- No-op, we always use the underlying connection's send |
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418 | end |
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419 | |
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420 | function interface_mt:starttls(sslctx, call_onconnect) |
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421 | debug( "try to start ssl at client id:", self.id ) |
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422 | local err |
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423 | self._sslctx = sslctx; |
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424 | if self._usingssl then -- startssl was already called |
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425 | err = "ssl already active" |
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426 | end |
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427 | if err then |
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428 | debug( "error:", err ) |
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429 | return nil, err |
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430 | end |
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431 | self._usingssl = true |
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432 | self.startsslcallback = function( ) -- we have to start the handshake outside of a read/write event |
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433 | self.startsslcallback = nil |
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434 | self:_start_ssl(call_onconnect); |
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435 | self.eventstarthandshake = nil |
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436 | return -1 |
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437 | end |
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438 | if not self.eventwrite then |
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439 | self:_lock( true, true, true ) -- lock the interface, to not disturb the handshake |
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440 | self.eventstarthandshake = addevent( base, nil, EV_TIMEOUT, self.startsslcallback, 0 ) -- add event to start handshake |
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441 | else -- wait until writebuffer is empty |
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442 | self:_lock( true, true, false ) |
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443 | debug "ssl session delayed until writebuffer is empty..." |
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444 | end |
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445 | self.starttls = false; |
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446 | return true |
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447 | end |
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448 | |
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449 | function interface_mt:setoption(option, value) |
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450 | if self.conn.setoption then |
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451 | return self.conn:setoption(option, value); |
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452 | end |
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453 | return false, "setoption not implemented"; |
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454 | end |
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455 | |
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456 | function interface_mt:setlistener(listener) |
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457 | self.onconnect, self.ondisconnect, self.onincoming, self.ontimeout, self.onstatus |
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458 | = listener.onconnect, listener.ondisconnect, listener.onincoming, listener.ontimeout, listener.onstatus; |
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459 | end |
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460 | |
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461 | -- Stub handlers |
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462 | function interface_mt:onconnect() |
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463 | return self:onincoming(nil); |
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464 | end |
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465 | function interface_mt:onincoming() |
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466 | end |
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467 | function interface_mt:ondisconnect() |
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468 | end |
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469 | function interface_mt:ontimeout() |
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470 | end |
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471 | function interface_mt:ondrain() |
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472 | end |
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473 | function interface_mt:onstatus() |
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474 | end |
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475 | end |
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476 | |
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477 | -- End of client interface methods |
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478 | |
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479 | local handleclient; |
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480 | do |
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481 | local string_sub = string.sub -- caching table lookups |
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482 | local string_len = string.len |
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483 | local addevent = base.addevent |
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484 | local coroutine_wrap = coroutine.wrap |
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485 | local socket_gettime = socket.gettime |
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486 | local coroutine_yield = coroutine.yield |
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487 | function handleclient( client, ip, port, server, pattern, listener, _, sslctx ) -- creates an client interface |
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488 | --vdebug("creating client interfacce...") |
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489 | local interface = { |
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490 | type = "client"; |
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491 | conn = client; |
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492 | currenttime = socket_gettime( ); -- safe the origin |
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493 | writebuffer = ""; -- writebuffer |
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494 | writebufferlen = 0; -- length of writebuffer |
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495 | send = client.send; -- caching table lookups |
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496 | receive = client.receive; |
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497 | onconnect = listener.onconnect; -- will be called when client disconnects |
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498 | ondisconnect = listener.ondisconnect; -- will be called when client disconnects |
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499 | onincoming = listener.onincoming; -- will be called when client sends data |
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500 | ontimeout = listener.ontimeout; -- called when fatal socket timeout occurs |
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501 | onstatus = listener.onstatus; -- called for status changes (e.g. of SSL/TLS) |
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502 | eventread = false, eventwrite = false, eventclose = false, |
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503 | eventhandshake = false, eventstarthandshake = false; -- event handler |
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504 | eventconnect = false, eventsession = false; -- more event handler... |
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505 | eventwritetimeout = false; -- even more event handler... |
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506 | eventreadtimeout = false; |
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507 | fatalerror = false; -- error message |
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508 | writecallback = false; -- will be called on write events |
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509 | readcallback = false; -- will be called on read events |
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510 | nointerface = true; -- lock/unlock parameter of this interface |
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511 | noreading = false, nowriting = false; -- locks of the read/writecallback |
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512 | startsslcallback = false; -- starting handshake callback |
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513 | position = false; -- position of client in interfacelist |
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514 | |
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515 | -- Properties |
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516 | _ip = ip, _port = port, _server = server, _pattern = pattern, |
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517 | _serverport = (server and server:port() or nil), |
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518 | _sslctx = sslctx; -- parameters |
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519 | _usingssl = false; -- client is using ssl; |
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520 | } |
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521 | if not ssl then interface.starttls = false; end |
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522 | interface.id = tostring(interface):match("%x+$"); |
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523 | interface.writecallback = function( event ) -- called on write events |
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524 | --vdebug( "new client write event, id/ip/port:", interface, ip, port ) |
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525 | if interface.nowriting or ( interface.fatalerror and ( "client to close" ~= interface.fatalerror ) ) then -- leave this event |
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526 | --vdebug( "leaving this event because:", interface.nowriting or interface.fatalerror ) |
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527 | interface.eventwrite = false |
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528 | return -1 |
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529 | end |
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530 | if EV_TIMEOUT == event then -- took too long to write some data to socket -> disconnect |
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531 | interface.fatalerror = "timeout during writing" |
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532 | debug( "writing failed:", interface.fatalerror ) |
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533 | interface:_close() |
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534 | interface.eventwrite = false |
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535 | return -1 |
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536 | else -- can write :) |
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537 | if interface._usingssl then -- handle luasec |
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538 | if interface.eventreadtimeout then -- we have to read first |
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539 | local ret = interface.readcallback( ) -- call readcallback |
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540 | --vdebug( "tried to read in writecallback, result:", ret ) |
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541 | end |
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542 | if interface.eventwritetimeout then -- luasec only |
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543 | interface.eventwritetimeout:close( ) -- first we have to close timeout event which where regged after a wantread error |
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544 | interface.eventwritetimeout = false |
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545 | end |
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546 | end |
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547 | local succ, err, byte = interface.conn:send( interface.writebuffer, 1, interface.writebufferlen ) |
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548 | --vdebug( "write data:", interface.writebuffer, "error:", err, "part:", byte ) |
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549 | if succ then -- writing succesful |
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550 | interface.writebuffer = "" |
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551 | interface.writebufferlen = 0 |
3002
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552 | interface:ondrain(); |
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553 | if interface.fatalerror then |
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554 | debug "closing client after writing" |
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555 | interface:_close() -- close interface if needed |
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556 | elseif interface.startsslcallback then -- start ssl connection if needed |
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557 | debug "starting ssl handshake after writing" |
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558 | interface.eventstarthandshake = addevent( base, nil, EV_TIMEOUT, interface.startsslcallback, 0 ) |
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559 | elseif interface.eventreadtimeout then |
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560 | return EV_WRITE, EV_TIMEOUT |
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561 | end |
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562 | interface.eventwrite = nil |
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563 | return -1 |
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a2b01936f8f9
net.server_event: Don't re-try a write if the connection closed (thanks Flo)
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564 | elseif byte and (err == "timeout" or err == "wantwrite") then -- want write again |
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565 | --vdebug( "writebuffer is not empty:", err ) |
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566 | interface.writebuffer = string_sub( interface.writebuffer, byte + 1, interface.writebufferlen ) -- new buffer |
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567 | interface.writebufferlen = interface.writebufferlen - byte |
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568 | if "wantread" == err then -- happens only with luasec |
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569 | local callback = function( ) |
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570 | interface:_close() |
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571 | interface.eventwritetimeout = nil |
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net.server_event: Fix some global accesses
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572 | return -1; |
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573 | end |
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574 | interface.eventwritetimeout = addevent( base, nil, EV_TIMEOUT, callback, cfg.WRITE_TIMEOUT ) -- reg a new timeout event |
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575 | debug( "wantread during write attempt, reg it in readcallback but dont know what really happens next..." ) |
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576 | -- hopefully this works with luasec; its simply not possible to use 2 different write events on a socket in luaevent |
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577 | return -1 |
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578 | end |
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579 | return EV_WRITE, cfg.WRITE_TIMEOUT |
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580 | else -- connection was closed during writing or fatal error |
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581 | interface.fatalerror = err or "fatal error" |
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582 | debug( "connection failed in write event:", interface.fatalerror ) |
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583 | interface:_close() |
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584 | interface.eventwrite = nil |
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585 | return -1 |
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586 | end |
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587 | end |
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588 | end |
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589 | |
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590 | interface.readcallback = function( event ) -- called on read events |
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591 | --vdebug( "new client read event, id/ip/port:", tostring(interface.id), tostring(ip), tostring(port) ) |
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592 | if interface.noreading or interface.fatalerror then -- leave this event |
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593 | --vdebug( "leaving this event because:", tostring(interface.noreading or interface.fatalerror) ) |
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594 | interface.eventread = nil |
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595 | return -1 |
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596 | end |
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597 | if EV_TIMEOUT == event then -- took too long to get some data from client -> disconnect |
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598 | interface.fatalerror = "timeout during receiving" |
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599 | debug( "connection failed:", interface.fatalerror ) |
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600 | interface:_close() |
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601 | interface.eventread = nil |
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602 | return -1 |
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603 | else -- can read |
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604 | if interface._usingssl then -- handle luasec |
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605 | if interface.eventwritetimeout then -- ok, in the past writecallback was regged |
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606 | local ret = interface.writecallback( ) -- call it |
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607 | --vdebug( "tried to write in readcallback, result:", tostring(ret) ) |
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608 | end |
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609 | if interface.eventreadtimeout then |
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610 | interface.eventreadtimeout:close( ) |
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611 | interface.eventreadtimeout = nil |
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612 | end |
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613 | end |
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614 | local buffer, err, part = interface.conn:receive( interface._pattern ) -- receive buffer with "pattern" |
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615 | --vdebug( "read data:", tostring(buffer), "error:", tostring(err), "part:", tostring(part) ) |
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616 | buffer = buffer or part or "" |
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617 | local len = string_len( buffer ) |
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618 | if len > cfg.MAX_READ_LENGTH then -- check buffer length |
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619 | interface.fatalerror = "receive buffer exceeded" |
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620 | debug( "fatal error:", interface.fatalerror ) |
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621 | interface:_close() |
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622 | interface.eventread = nil |
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623 | return -1 |
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624 | end |
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625 | interface.onincoming( interface, buffer, err ) -- send new data to listener |
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626 | if err and ( err ~= "timeout" and err ~= "wantread" ) then |
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627 | if "wantwrite" == err then -- need to read on write event |
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628 | if not interface.eventwrite then -- register new write event if needed |
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629 | interface.eventwrite = addevent( base, interface.conn, EV_WRITE, interface.writecallback, cfg.WRITE_TIMEOUT ) |
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630 | end |
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631 | interface.eventreadtimeout = addevent( base, nil, EV_TIMEOUT, |
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632 | function( ) |
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633 | interface:_close() |
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634 | end, cfg.READ_TIMEOUT |
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635 | ) |
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636 | debug( "wantwrite during read attempt, reg it in writecallback but dont know what really happens next..." ) |
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637 | -- to be honest i dont know what happens next, if it is allowed to first read, the write etc... |
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638 | else -- connection was closed or fatal error |
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639 | interface.fatalerror = err |
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|
640 | debug( "connection failed in read event:", interface.fatalerror ) |
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|
641 | interface:_close() |
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|
642 | interface.eventread = nil |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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|
643 | return -1 |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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|
644 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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|
645 | end |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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diff
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|
646 | return EV_READ, cfg.READ_TIMEOUT |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
647 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
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|
648 | end |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
649 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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changeset
|
650 | client:settimeout( 0 ) -- set non blocking |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
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|
651 | setmetatable(interface, interface_mt) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
changeset
|
652 | interfacelist( "add", interface ) -- add to interfacelist |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
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|
653 | return interface |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
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|
654 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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diff
changeset
|
655 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
656 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
changeset
|
657 | local handleserver |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
658 | do |
2561
e7bec4072c61
net.server_event: Update for compatibility with new server API
Matthew Wild <mwild1@gmail.com>
parents:
2535
diff
changeset
|
659 | function handleserver( server, addr, port, pattern, listener, sslctx ) -- creates an server interface |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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diff
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|
660 | debug "creating server interface..." |
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parents:
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|
661 | local interface = { |
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|
662 | _connections = 0; |
a831de056de3
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|
663 | |
a831de056de3
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|
664 | conn = server; |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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|
665 | onconnect = listener.onconnect; -- will be called when new client connected |
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|
666 | eventread = false; -- read event handler |
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|
667 | eventclose = false; -- close event handler |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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diff
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|
668 | readcallback = false; -- read event callback |
a831de056de3
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parents:
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|
669 | fatalerror = false; -- error message |
a831de056de3
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parents:
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|
670 | nointerface = true; -- lock/unlock parameter |
2375
31297a5641e3
net.server_event: Add properties like _ip and _port to server objects too
Matthew Wild <mwild1@gmail.com>
parents:
2374
diff
changeset
|
671 | |
31297a5641e3
net.server_event: Add properties like _ip and _port to server objects too
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parents:
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|
672 | _ip = addr, _port = port, _pattern = pattern, |
31297a5641e3
net.server_event: Add properties like _ip and _port to server objects too
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parents:
2374
diff
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|
673 | _sslctx = sslctx; |
2318
a831de056de3
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|
674 | } |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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|
675 | interface.id = tostring(interface):match("%x+$"); |
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parents:
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diff
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|
676 | interface.readcallback = function( event ) -- server handler, called on incoming connections |
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changeset
|
677 | --vdebug( "server can accept, id/addr/port:", interface, addr, port ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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changeset
|
678 | if interface.fatalerror then |
a831de056de3
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parents:
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diff
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|
679 | --vdebug( "leaving this event because:", self.fatalerror ) |
a831de056de3
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parents:
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diff
changeset
|
680 | interface.eventread = nil |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
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|
681 | return -1 |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
changeset
|
682 | end |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
changeset
|
683 | local delay = cfg.ACCEPT_DELAY |
a831de056de3
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parents:
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diff
changeset
|
684 | if EV_TIMEOUT == event then |
a831de056de3
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parents:
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diff
changeset
|
685 | if interface._connections >= cfg.MAX_CONNECTIONS then -- check connection count |
a831de056de3
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parents:
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diff
changeset
|
686 | debug( "to many connections, seconds to wait for next accept:", delay ) |
a831de056de3
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Matthew Wild <mwild1@gmail.com>
parents:
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changeset
|
687 | return EV_TIMEOUT, delay -- timeout... |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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changeset
|
688 | else |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
689 | return EV_READ -- accept again |
a831de056de3
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parents:
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diff
changeset
|
690 | end |
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net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
691 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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changeset
|
692 | --vdebug("max connection check ok, accepting...") |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
changeset
|
693 | local client, err = server:accept() -- try to accept; TODO: check err |
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net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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|
694 | while client do |
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changeset
|
695 | if interface._connections >= cfg.MAX_CONNECTIONS then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
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|
696 | client:close( ) -- refuse connection |
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parents:
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diff
changeset
|
697 | debug( "maximal connections reached, refuse client connection; accept delay:", delay ) |
3237
721a83a3beb9
net.server_event: attemp to fix more spelling fail.
Waqas Hussain <waqas20@gmail.com>
parents:
3149
diff
changeset
|
698 | return EV_TIMEOUT, delay -- delay for next accept attempt |
2318
a831de056de3
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parents:
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changeset
|
699 | end |
2726
1b9179e04233
net.server_event: Improve and fix potential traceback in logging of new incoming connections
Matthew Wild <mwild1@gmail.com>
parents:
2708
diff
changeset
|
700 | local client_ip, client_port = client:getpeername( ) |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
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diff
changeset
|
701 | interface._connections = interface._connections + 1 -- increase connection count |
2726
1b9179e04233
net.server_event: Improve and fix potential traceback in logging of new incoming connections
Matthew Wild <mwild1@gmail.com>
parents:
2708
diff
changeset
|
702 | local clientinterface = handleclient( client, client_ip, client_port, interface, pattern, listener, nil, sslctx ) |
2318
a831de056de3
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parents:
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diff
changeset
|
703 | --vdebug( "client id:", clientinterface, "startssl:", startssl ) |
2599
cc6164d85024
net.server_event: Fixes for traceback with no LuaSec
Matthew Wild <mwild1@gmail.com>
parents:
2561
diff
changeset
|
704 | if ssl and sslctx then |
3396
23cf369ed1c3
net.server_event: Fix to not call onconnect a second time after the SSL handshake for starttls connections (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents:
3387
diff
changeset
|
705 | clientinterface:starttls(sslctx, true) |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
706 | else |
3396
23cf369ed1c3
net.server_event: Fix to not call onconnect a second time after the SSL handshake for starttls connections (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents:
3387
diff
changeset
|
707 | 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
|
708 | end |
2726
1b9179e04233
net.server_event: Improve and fix potential traceback in logging of new incoming connections
Matthew Wild <mwild1@gmail.com>
parents:
2708
diff
changeset
|
709 | debug( "accepted incoming client connection from:", client_ip or "<unknown IP>", client_port or "<unknown port>", "to", port or "<unknown port>"); |
2641
b083a667e3be
net.server_event: Fire onincoming() callback for new connections as opposed to the new onconnect() - let's change this for a future version though
Matthew Wild <mwild1@gmail.com>
parents:
2639
diff
changeset
|
710 | |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
711 | client, err = server:accept() -- try to accept again |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
712 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
713 | return EV_READ |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
714 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
715 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
716 | server:settimeout( 0 ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
717 | setmetatable(interface, interface_mt) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
718 | interfacelist( "add", interface ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
719 | interface:_start_session() |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
720 | return interface |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
721 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
722 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
723 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
724 | local addserver = ( function( ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
725 | return function( addr, port, listener, pattern, sslcfg, startssl ) -- TODO: check arguments |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
726 | --vdebug( "creating new tcp server with following parameters:", addr or "nil", port or "nil", sslcfg or "nil", startssl or "nil") |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
727 | local server, err = socket.bind( addr, port, cfg.ACCEPT_QUEUE ) -- create server socket |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
728 | if not server then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
729 | debug( "creating server socket failed because:", err ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
730 | return nil, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
731 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
732 | local sslctx |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
733 | if sslcfg then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
734 | if not ssl then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
735 | debug "fatal error: luasec not found" |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
736 | return nil, "luasec not found" |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
737 | end |
2638
115104acdd7b
net.server_event: Fix traceback in creating SSL context
Matthew Wild <mwild1@gmail.com>
parents:
2599
diff
changeset
|
738 | sslctx, err = sslcfg |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
739 | if err then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
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parents:
2303
diff
changeset
|
740 | debug( "error while creating new ssl context for server socket:", err ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
741 | return nil, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
742 | end |
2535
75bb31b6c53f
net.server_event: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2534
diff
changeset
|
743 | 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
|
744 | local interface = handleserver( server, addr, port, pattern, listener, sslctx, startssl ) -- new server handler |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
745 | debug( "new server created with id:", tostring(interface)) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
746 | return interface |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
747 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
748 | end )( ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
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diff
changeset
|
749 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
750 | local addclient, wrapclient |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
751 | do |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
752 | function wrapclient( client, ip, port, listeners, pattern, sslctx, startssl ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
753 | local interface = handleclient( client, ip, port, nil, pattern, listeners, sslctx ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
754 | interface:_start_session() |
3149
5aca2f01c0f9
net.server_event: Also return the socket from wrapclient, to maintain compatibility with server_select (thanks uhoreg)
Matthew Wild <mwild1@gmail.com>
parents:
3003
diff
changeset
|
755 | return interface, client |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
756 | --function handleclient( client, ip, port, server, pattern, listener, _, sslctx ) -- creates an client interface |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
757 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
758 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
759 | function addclient( addr, serverport, listener, pattern, localaddr, localport, sslcfg, startssl ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
760 | local client, err = socket.tcp() -- creating new socket |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
761 | if not client then |
2535
75bb31b6c53f
net.server_event: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2534
diff
changeset
|
762 | debug( "cannot create socket:", 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
|
763 | return nil, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
764 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
765 | client:settimeout( 0 ) -- set nonblocking |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
766 | if localaddr then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
767 | local res, err = client:bind( localaddr, localport, -1 ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
768 | if not res then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
769 | debug( "cannot bind client:", err ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
770 | return nil, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
771 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
772 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
773 | local sslctx |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
774 | if sslcfg then -- handle ssl/new context |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
775 | if not ssl then |
2535
75bb31b6c53f
net.server_event: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2534
diff
changeset
|
776 | debug "need luasec, but not available" |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
777 | return nil, "luasec not found" |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
778 | end |
2639
a7f683622b35
net.server_event: Fix another instance of creating an SSL context - certmanager now does this
Matthew Wild <mwild1@gmail.com>
parents:
2638
diff
changeset
|
779 | sslctx, err = sslcfg |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
780 | if err then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
781 | debug( "cannot create new ssl context:", err ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
782 | return nil, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
783 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
784 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
785 | local res, err = client:connect( addr, serverport ) -- connect |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
786 | if res or ( err == "timeout" ) then |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
787 | local ip, port = client:getsockname( ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
788 | local server = function( ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
789 | return nil, "this is a dummy server interface" |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
790 | end |
2731
373a7c960409
net.server_event: Fix some global accesses
Matthew Wild <mwild1@gmail.com>
parents:
2726
diff
changeset
|
791 | local interface = wrapclient( client, ip, serverport, listener, pattern, sslctx, startssl ) |
2318
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
792 | interface:_start_connection( startssl ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
793 | debug( "new connection id:", interface.id ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
794 | return interface, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
795 | else |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
796 | debug( "new connection failed:", err ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
797 | return nil, err |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
798 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
799 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
800 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
801 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
802 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
803 | local loop = function( ) -- 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
|
804 | 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
|
805 | 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
|
806 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
807 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
808 | local newevent = ( function( ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
809 | local add = base.addevent |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
810 | return function( ... ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
811 | return add( base, ... ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
812 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
813 | end )( ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
814 | |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
815 | local closeallservers = function( arg ) |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
816 | for _, item in ipairs( 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
|
817 | 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
|
818 | 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
|
819 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
820 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
821 | end |
a831de056de3
net.server_select, net.server_event: Convert to unix line endings from Windows
Matthew Wild <mwild1@gmail.com>
parents:
2303
diff
changeset
|
822 | |
2335
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
823 | 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
|
824 | if yes then |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
825 | -- Quit now |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
826 | closeallservers(); |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
827 | base:loopexit(); |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
828 | end |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
829 | end |
060fb67cefd5
net.server_event: Add setquitting() function to be compatible with net.server_select
Matthew Wild <mwild1@gmail.com>
parents:
2334
diff
changeset
|
830 | |
2340
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
831 | function get_backend() |
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
832 | return base:method(); |
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
833 | end |
b286d60cb4fc
net.server_event: Add get_backend() method
Matthew Wild <mwild1@gmail.com>
parents:
2336
diff
changeset
|
834 | |
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
|
835 | -- 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
|
836 | -- 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
|
837 | local signal_events = {}; -- [signal_num] -> event object |
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
|
838 | function hook_signal(signal_num, 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
|
839 | local function _handler(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
|
840 | 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
|
841 | 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
|
842 | 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
|
843 | 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
|
844 | 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
|
845 | 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
|
846 | 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
|
847 | 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
|
848 | 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
|
849 | |
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
|
850 | 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
|
851 | local sender_locked; |
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
|
852 | |
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
|
853 | 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
|
854 | 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:
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diff
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855 | sender:resume(); |
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856 | sender_locked = nil; |
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857 | end |
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858 | end |
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859 | |
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860 | function sender:onincoming(data) |
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861 | receiver:write(data); |
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862 | if receiver.writebufferlen >= buffersize then |
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863 | sender_locked = true; |
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864 | sender:pause(); |
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865 | end |
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866 | end |
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867 | end |
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868 | |
2318
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869 | return { |
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870 | |
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871 | cfg = cfg, |
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872 | base = base, |
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873 | loop = loop, |
3003
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874 | link = link, |
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875 | event = event, |
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876 | event_base = base, |
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877 | addevent = newevent, |
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878 | addserver = addserver, |
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879 | addclient = addclient, |
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880 | wrapclient = wrapclient, |
2336
fb1d9d2444df
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881 | setquitting = setquitting, |
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882 | closeall = closeallservers, |
2340
b286d60cb4fc
net.server_event: Add get_backend() method
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883 | get_backend = get_backend, |
2434
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884 | hook_signal = hook_signal, |
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885 | |
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886 | __NAME = SCRIPT_NAME, |
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887 | __DATE = LAST_MODIFIED, |
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888 | __AUTHOR = SCRIPT_AUTHOR, |
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889 | __VERSION = SCRIPT_VERSION, |
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890 | |
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891 | } |