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Annotate
net/server.lua @ 122:21f8d2175393
No s2s yet :)
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Thu, 23 Oct 2008 14:39:42 +0100 |
| parent | 98:3a2d327c4856 |
| child | 127:93f3c6b94c75 |
| rev | line source |
|---|---|
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1 --[[ |
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2 |
| 64 | 3 server.lua by blastbeat of the luadch project |
| 4 | |
| 5 re-used here under the MIT/X Consortium License | |
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| 64 | 7 - this script contains the server loop of the program |
| 8 - other scripts can reg a server here | |
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9 |
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10 ]]-- |
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11 |
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12 ----------------------------------// DECLARATION //-- |
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13 |
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14 --// constants //-- |
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15 |
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16 local STAT_UNIT = 1 / ( 1024 * 1024 ) -- mb |
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17 |
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18 --// lua functions //-- |
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19 |
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20 local function use( what ) return _G[ what ] end |
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21 |
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22 local type = use "type" |
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23 local pairs = use "pairs" |
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24 local ipairs = use "ipairs" |
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25 local tostring = use "tostring" |
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26 local collectgarbage = use "collectgarbage" |
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27 |
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28 --// lua libs //-- |
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29 |
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30 local table = use "table" |
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31 local coroutine = use "coroutine" |
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32 |
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33 --// lua lib methods //-- |
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34 |
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35 local table_concat = table.concat |
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36 local table_remove = table.remove |
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37 local string_sub = use'string'.sub |
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38 local coroutine_wrap = coroutine.wrap |
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39 local coroutine_yield = coroutine.yield |
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40 local print = print; |
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41 local out_put = function () end --print; |
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42 local out_error = print; |
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43 |
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44 --// extern libs //-- |
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45 |
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98
3a2d327c4856
server.lua should degrade gracefully when LuaSec not present
Matthew Wild <mwild1@gmail.com>
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46 local luasec = select(2, pcall(require, "ssl")) |
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47 local luasocket = require "socket" |
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48 |
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49 --// extern lib methods //-- |
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50 |
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51 local ssl_wrap = ( luasec and luasec.wrap ) |
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52 local socket_bind = luasocket.bind |
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53 local socket_select = luasocket.select |
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54 local ssl_newcontext = ( luasec and luasec.newcontext ) |
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55 |
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56 --// functions //-- |
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57 |
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58 local loop |
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59 local stats |
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60 local addtimer |
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61 local closeall |
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62 local addserver |
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63 local firetimer |
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64 local closesocket |
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65 local removesocket |
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66 local wrapserver |
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67 local wraptcpclient |
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68 local wrapsslclient |
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69 |
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70 --// tables //-- |
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71 |
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72 local listener |
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73 local readlist |
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74 local writelist |
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75 local socketlist |
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76 local timelistener |
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77 |
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78 --// simple data types //-- |
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79 |
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80 local _ |
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81 local readlen = 0 -- length of readlist |
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82 local writelen = 0 -- lenght of writelist |
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83 |
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84 local sendstat= 0 |
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85 local receivestat = 0 |
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86 |
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87 ----------------------------------// DEFINITION //-- |
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88 |
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89 listener = { } -- key = port, value = table |
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90 readlist = { } -- array with sockets to read from |
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91 writelist = { } -- arrary with sockets to write to |
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92 socketlist = { } -- key = socket, value = wrapped socket |
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93 timelistener = { } |
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94 |
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95 stats = function( ) |
| 64 | 96 return receivestat, sendstat |
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97 end |
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98 |
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99 wrapserver = function( listener, socket, ip, serverport, mode, sslctx ) -- this function wraps a server |
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100 |
| 64 | 101 local dispatch, disconnect = listener.listener, listener.disconnect -- dangerous |
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102 |
| 64 | 103 local wrapclient, err |
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104 |
| 64 | 105 if sslctx then |
| 106 if not ssl_newcontext then | |
| 107 return nil, "luasec not found" | |
| 108 end | |
| 109 if type( sslctx ) ~= "table" then | |
| 110 out_error "server.lua: wrong server sslctx" | |
| 111 return nil, "wrong server sslctx" | |
| 112 end | |
| 113 sslctx, err = ssl_newcontext( sslctx ) | |
| 114 if not sslctx then | |
| 115 err = err or "wrong sslctx parameters" | |
| 116 out_error( "server.lua: ", err ) | |
| 117 return nil, err | |
| 118 end | |
| 119 wrapclient = wrapsslclient | |
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120 wrapclient = wraptlsclient |
| 64 | 121 else |
| 122 wrapclient = wraptcpclient | |
| 123 end | |
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124 |
| 64 | 125 local accept = socket.accept |
| 126 local close = socket.close | |
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127 |
| 64 | 128 --// public methods of the object //-- |
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129 |
| 64 | 130 local handler = { } |
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131 |
| 64 | 132 handler.shutdown = function( ) end |
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133 |
| 64 | 134 --[[handler.listener = function( data, err ) |
| 135 return ondata( handler, data, err ) | |
| 136 end]] | |
| 137 handler.ssl = function( ) | |
| 138 return sslctx and true or false | |
| 139 end | |
| 140 handler.close = function( closed ) | |
| 141 _ = not closed and close( socket ) | |
| 142 writelen = removesocket( writelist, socket, writelen ) | |
| 143 readlen = removesocket( readlist, socket, readlen ) | |
| 144 socketlist[ socket ] = nil | |
| 145 handler = nil | |
| 146 end | |
| 147 handler.ip = function( ) | |
| 148 return ip | |
| 149 end | |
| 150 handler.serverport = function( ) | |
| 151 return serverport | |
| 152 end | |
| 153 handler.socket = function( ) | |
| 154 return socket | |
| 155 end | |
| 156 handler.receivedata = function( ) | |
| 157 local client, err = accept( socket ) -- try to accept | |
| 158 if client then | |
| 159 local ip, clientport = client:getpeername( ) | |
| 160 client:settimeout( 0 ) | |
| 161 local handler, client, err = wrapclient( listener, client, ip, serverport, clientport, mode, sslctx ) -- wrap new client socket | |
| 162 if err then -- error while wrapping ssl socket | |
| 163 return false | |
| 164 end | |
| 165 out_put( "server.lua: accepted new client connection from ", ip, ":", clientport ) | |
| 166 return dispatch( handler ) | |
| 167 elseif err then -- maybe timeout or something else | |
| 168 out_put( "server.lua: error with new client connection: ", err ) | |
| 169 return false | |
| 170 end | |
| 171 end | |
| 172 return handler | |
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173 end |
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174 |
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175 wrapsslclient = function( listener, socket, ip, serverport, clientport, mode, sslctx ) -- this function wraps a ssl cleint |
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176 |
| 64 | 177 local dispatch, disconnect = listener.listener, listener.disconnect |
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178 |
| 64 | 179 --// transform socket to ssl object //-- |
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180 |
| 64 | 181 local err |
| 182 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket | |
| 183 if err then | |
| 184 out_put( "server.lua: ssl error: ", err ) | |
| 185 return nil, nil, err -- fatal error | |
| 186 end | |
| 187 socket:settimeout( 0 ) | |
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188 |
| 64 | 189 --// private closures of the object //-- |
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190 |
| 64 | 191 local writequeue = { } -- buffer for messages to send |
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192 |
| 64 | 193 local eol -- end of buffer |
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194 |
| 64 | 195 local sstat, rstat = 0, 0 |
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196 |
| 64 | 197 --// local import of socket methods //-- |
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198 |
| 64 | 199 local send = socket.send |
| 200 local receive = socket.receive | |
| 201 local close = socket.close | |
| 202 --local shutdown = socket.shutdown | |
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203 |
| 64 | 204 --// public methods of the object //-- |
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205 |
| 64 | 206 local handler = { } |
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207 |
| 64 | 208 handler.getstats = function( ) |
| 209 return rstat, sstat | |
| 210 end | |
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211 |
| 64 | 212 handler.listener = function( data, err ) |
| 213 return listener( handler, data, err ) | |
| 214 end | |
| 215 handler.ssl = function( ) | |
| 216 return true | |
| 217 end | |
| 218 handler.send = function( _, data, i, j ) | |
| 219 return send( socket, data, i, j ) | |
| 220 end | |
| 221 handler.receive = function( pattern, prefix ) | |
| 222 return receive( socket, pattern, prefix ) | |
| 223 end | |
| 224 handler.shutdown = function( pattern ) | |
| 225 --return shutdown( socket, pattern ) | |
| 226 end | |
| 227 handler.close = function( closed ) | |
| 228 close( socket ) | |
| 229 writelen = ( eol and removesocket( writelist, socket, writelen ) ) or writelen | |
| 230 readlen = removesocket( readlist, socket, readlen ) | |
| 231 socketlist[ socket ] = nil | |
| 232 out_put "server.lua: closed handler and removed socket from list" | |
| 233 end | |
| 234 handler.ip = function( ) | |
| 235 return ip | |
| 236 end | |
| 237 handler.serverport = function( ) | |
| 238 return serverport | |
| 239 end | |
| 240 handler.clientport = function( ) | |
| 241 return clientport | |
| 242 end | |
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243 |
| 64 | 244 handler.write = function( data ) |
| 245 if not eol then | |
| 246 writelen = writelen + 1 | |
| 247 writelist[ writelen ] = socket | |
| 248 eol = 0 | |
| 249 end | |
| 250 eol = eol + 1 | |
| 251 writequeue[ eol ] = data | |
| 252 end | |
| 253 handler.writequeue = function( ) | |
| 254 return writequeue | |
| 255 end | |
| 256 handler.socket = function( ) | |
| 257 return socket | |
| 258 end | |
| 259 handler.mode = function( ) | |
| 260 return mode | |
| 261 end | |
| 262 handler._receivedata = function( ) | |
| 263 local data, err, part = receive( socket, mode ) -- receive data in "mode" | |
| 264 if not err or ( err == "timeout" or err == "wantread" ) then -- received something | |
| 265 local data = data or part or "" | |
| 266 local count = #data * STAT_UNIT | |
| 267 rstat = rstat + count | |
| 268 receivestat = receivestat + count | |
| 269 out_put( "server.lua: read data '", data, "', error: ", err ) | |
| 270 return dispatch( handler, data, err ) | |
| 271 else -- connections was closed or fatal error | |
| 272 out_put( "server.lua: client ", ip, ":", clientport, " error: ", err ) | |
| 273 handler.close( ) | |
| 274 disconnect( handler, err ) | |
| 275 writequeue = nil | |
| 276 handler = nil | |
| 277 return false | |
| 278 end | |
| 279 end | |
| 280 handler._dispatchdata = function( ) -- this function writes data to handlers | |
| 281 local buffer = table_concat( writequeue, "", 1, eol ) | |
| 282 local succ, err, byte = send( socket, buffer ) | |
| 283 local count = ( succ or 0 ) * STAT_UNIT | |
| 284 sstat = sstat + count | |
| 285 sendstat = sendstat + count | |
| 286 out_put( "server.lua: sended '", buffer, "', bytes: ", succ, ", error: ", err, ", part: ", byte, ", to: ", ip, ":", clientport ) | |
| 287 if succ then -- sending succesful | |
| 288 --writequeue = { } | |
| 289 eol = nil | |
| 290 writelen = removesocket( writelist, socket, writelen ) -- delete socket from writelist | |
| 291 return true | |
| 292 elseif byte and ( err == "timeout" or err == "wantwrite" ) then -- want write | |
| 293 buffer = string_sub( buffer, byte + 1, -1 ) -- new buffer | |
| 294 writequeue[ 1 ] = buffer -- insert new buffer in queue | |
| 295 eol = 1 | |
| 296 return true | |
| 297 else -- connection was closed during sending or fatal error | |
| 298 out_put( "server.lua: client ", ip, ":", clientport, " error: ", err ) | |
| 299 handler.close( ) | |
| 300 disconnect( handler, err ) | |
| 301 writequeue = nil | |
| 302 handler = nil | |
| 303 return false | |
| 304 end | |
| 305 end | |
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306 |
| 64 | 307 -- // COMPAT // -- |
|
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308 |
| 64 | 309 handler.getIp = handler.ip |
| 310 handler.getPort = handler.clientport | |
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311 |
| 64 | 312 --// handshake //-- |
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313 |
| 64 | 314 local wrote |
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315 |
| 64 | 316 handler.handshake = coroutine_wrap( function( client ) |
| 317 local err | |
| 318 for i = 1, 10 do -- 10 handshake attemps | |
| 319 _, err = client:dohandshake( ) | |
| 320 if not err then | |
| 321 out_put( "server.lua: ssl handshake done" ) | |
| 322 writelen = ( wrote and removesocket( writelist, socket, writelen ) ) or writelen | |
| 323 handler.receivedata = handler._receivedata -- when handshake is done, replace the handshake function with regular functions | |
| 324 handler.dispatchdata = handler._dispatchdata | |
| 325 return dispatch( handler ) | |
| 326 else | |
| 327 out_put( "server.lua: error during ssl handshake: ", err ) | |
| 328 if err == "wantwrite" then | |
| 329 if wrote == nil then | |
| 330 writelen = writelen + 1 | |
| 331 writelist[ writelen ] = client | |
| 332 wrote = true | |
| 333 end | |
| 334 end | |
| 335 coroutine_yield( handler, nil, err ) -- handshake not finished | |
| 336 end | |
| 337 end | |
| 338 _ = err ~= "closed" and close( socket ) | |
| 339 handler.close( ) | |
| 340 disconnect( handler, err ) | |
| 341 writequeue = nil | |
| 342 handler = nil | |
| 343 return false -- handshake failed | |
| 344 end | |
| 345 ) | |
| 346 handler.receivedata = handler.handshake | |
| 347 handler.dispatchdata = handler.handshake | |
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348 |
| 64 | 349 handler.handshake( socket ) -- do handshake |
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350 |
| 64 | 351 socketlist[ socket ] = handler |
| 352 readlen = readlen + 1 | |
| 353 readlist[ readlen ] = socket | |
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354 |
| 64 | 355 return handler, socket |
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356 end |
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357 |
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358 wraptlsclient = function( listener, socket, ip, serverport, clientport, mode, sslctx ) -- this function wraps a tls cleint |
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359 |
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360 local dispatch, disconnect = listener.listener, listener.disconnect |
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361 |
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362 --// transform socket to ssl object //-- |
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363 |
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364 local err |
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365 |
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366 socket:settimeout( 0 ) |
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367 |
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368 --// private closures of the object //-- |
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369 |
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370 local writequeue = { } -- buffer for messages to send |
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371 |
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372 local eol -- end of buffer |
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373 |
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374 local sstat, rstat = 0, 0 |
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375 |
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376 --// local import of socket methods //-- |
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377 |
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378 local send = socket.send |
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379 local receive = socket.receive |
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380 local close = socket.close |
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381 --local shutdown = socket.shutdown |
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382 |
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383 --// public methods of the object //-- |
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384 |
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385 local handler = { } |
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386 |
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387 handler.getstats = function( ) |
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388 return rstat, sstat |
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389 end |
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390 |
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391 handler.listener = function( data, err ) |
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392 return listener( handler, data, err ) |
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393 end |
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394 handler.ssl = function( ) |
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395 return false |
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396 end |
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397 handler.send = function( _, data, i, j ) |
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398 return send( socket, data, i, j ) |
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399 end |
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400 handler.receive = function( pattern, prefix ) |
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401 return receive( socket, pattern, prefix ) |
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402 end |
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403 handler.shutdown = function( pattern ) |
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404 --return shutdown( socket, pattern ) |
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405 end |
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406 handler.close = function( closed ) |
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407 close( socket ) |
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408 writelen = ( eol and removesocket( writelist, socket, writelen ) ) or writelen |
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409 readlen = removesocket( readlist, socket, readlen ) |
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410 socketlist[ socket ] = nil |
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411 out_put "server.lua: closed handler and removed socket from list" |
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412 end |
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413 handler.ip = function( ) |
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414 return ip |
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415 end |
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416 handler.serverport = function( ) |
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417 return serverport |
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418 end |
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419 handler.clientport = function( ) |
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420 return clientport |
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421 end |
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422 |
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423 handler.write = function( data ) |
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424 if not eol then |
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425 writelen = writelen + 1 |
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426 writelist[ writelen ] = socket |
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427 eol = 0 |
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428 end |
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429 eol = eol + 1 |
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430 writequeue[ eol ] = data |
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431 end |
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432 handler.writequeue = function( ) |
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433 return writequeue |
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434 end |
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435 handler.socket = function( ) |
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436 return socket |
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437 end |
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438 handler.mode = function( ) |
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439 return mode |
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440 end |
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441 handler._receivedata = function( ) |
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442 local data, err, part = receive( socket, mode ) -- receive data in "mode" |
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443 if not err or ( err == "timeout" or err == "wantread" ) then -- received something |
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444 local data = data or part or "" |
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445 local count = #data * STAT_UNIT |
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446 rstat = rstat + count |
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447 receivestat = receivestat + count |
| 66 | 448 --out_put( "server.lua: read data '", data, "', error: ", err ) |
|
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449 return dispatch( handler, data, err ) |
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450 else -- connections was closed or fatal error |
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451 out_put( "server.lua: client ", ip, ":", clientport, " error: ", err ) |
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452 handler.close( ) |
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453 disconnect( handler, err ) |
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454 writequeue = nil |
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455 handler = nil |
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456 return false |
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457 end |
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458 end |
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459 handler._dispatchdata = function( ) -- this function writes data to handlers |
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460 local buffer = table_concat( writequeue, "", 1, eol ) |
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461 local succ, err, byte = send( socket, buffer ) |
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462 local count = ( succ or 0 ) * STAT_UNIT |
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463 sstat = sstat + count |
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464 sendstat = sendstat + count |
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465 out_put( "server.lua: sended '", buffer, "', bytes: ", succ, ", error: ", err, ", part: ", byte, ", to: ", ip, ":", clientport ) |
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466 if succ then -- sending succesful |
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467 --writequeue = { } |
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468 eol = nil |
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469 writelen = removesocket( writelist, socket, writelen ) -- delete socket from writelist |
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470 if handler.need_tls then |
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471 out_put("server.lua: connection is ready for tls handshake"); |
| 66 | 472 handler.starttls(true); |
| 473 if handler.need_tls then | |
| 474 out_put("server.lua: uh-oh... we still want tls, something must be wrong"); | |
| 475 end | |
|
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476 end |
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477 return true |
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478 elseif byte and ( err == "timeout" or err == "wantwrite" ) then -- want write |
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479 buffer = string_sub( buffer, byte + 1, -1 ) -- new buffer |
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480 writequeue[ 1 ] = buffer -- insert new buffer in queue |
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481 eol = 1 |
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482 return true |
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483 else -- connection was closed during sending or fatal error |
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484 out_put( "server.lua: client ", ip, ":", clientport, " error: ", err ) |
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485 handler.close( ) |
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486 disconnect( handler, err ) |
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487 writequeue = nil |
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488 handler = nil |
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489 return false |
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490 end |
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491 end |
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492 |
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493 handler.receivedata, handler.dispatchdata = handler._receivedata, handler._dispatchdata; |
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494 -- // COMPAT // -- |
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495 |
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496 handler.getIp = handler.ip |
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497 handler.getPort = handler.clientport |
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498 |
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499 --// handshake //-- |
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500 |
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501 local wrote, read |
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502 |
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503 handler.starttls = function (now) |
| 66 | 504 if not now then out_put("server.lua: we need to do tls, but delaying until later"); handler.need_tls = true; return; end |
|
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505 out_put( "server.lua: attempting to start tls on "..tostring(socket) ) |
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506 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket |
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507 out_put("sslwrapped socket is "..tostring(socket)); |
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508 if err then |
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509 out_put( "server.lua: ssl error: ", err ) |
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510 return nil, nil, err -- fatal error |
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511 end |
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512 socket:settimeout( 1 ) |
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513 send = socket.send |
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514 receive = socket.receive |
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515 close = socket.close |
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516 handler.ssl = function( ) |
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517 return true |
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518 end |
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519 handler.send = function( _, data, i, j ) |
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520 return send( socket, data, i, j ) |
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521 end |
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522 handler.receive = function( pattern, prefix ) |
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523 return receive( socket, pattern, prefix ) |
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524 end |
| 66 | 525 |
| 526 handler.handshake = coroutine_wrap( function( client ) | |
| 527 local err | |
| 528 for i = 1, 10 do -- 10 handshake attemps | |
| 529 _, err = client:dohandshake( ) | |
| 530 if not err then | |
| 531 out_put( "server.lua: ssl handshake done" ) | |
| 532 writelen = ( wrote and removesocket( writelist, socket, writelen ) ) or writelen | |
| 533 handler.receivedata = handler._receivedata -- when handshake is done, replace the handshake function with regular functions | |
| 534 handler.dispatchdata = handler._dispatchdata | |
| 535 handler.need_tls = nil | |
| 536 socketlist[ client ] = handler | |
| 537 readlen = readlen + 1 | |
| 538 readlist[ readlen ] = client | |
| 539 return true; | |
| 540 else | |
| 541 out_put( "server.lua: error during ssl handshake: ", err ) | |
| 542 if err == "wantwrite" then | |
| 543 if wrote == nil then | |
| 544 writelen = writelen + 1 | |
| 545 writelist[ writelen ] = client | |
| 546 wrote = true | |
|
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547 end |
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548 end |
| 66 | 549 coroutine_yield( handler, nil, err ) -- handshake not finished |
|
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550 end |
| 66 | 551 end |
| 552 _ = err ~= "closed" and close( socket ) | |
| 553 handler.close( ) | |
| 554 disconnect( handler, err ) | |
| 555 writequeue = nil | |
| 556 handler = nil | |
| 557 return false -- handshake failed | |
| 558 end | |
| 559 ) | |
| 560 handler.receivedata = handler.handshake | |
| 561 handler.dispatchdata = handler.handshake | |
|
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562 |
| 66 | 563 handler.handshake( socket ) -- do handshake |
| 564 end | |
|
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565 socketlist[ socket ] = handler |
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566 readlen = readlen + 1 |
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567 readlist[ readlen ] = socket |
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568 |
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569 return handler, socket |
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570 end |
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571 |
|
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572 wraptcpclient = function( listener, socket, ip, serverport, clientport, mode ) -- this function wraps a socket |
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573 |
| 64 | 574 local dispatch, disconnect = listener.listener, listener.disconnect |
|
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575 |
| 64 | 576 --// private closures of the object //-- |
|
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577 |
| 64 | 578 local writequeue = { } -- list for messages to send |
|
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579 |
| 64 | 580 local eol |
|
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581 |
| 64 | 582 local rstat, sstat = 0, 0 |
|
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583 |
| 64 | 584 --// local import of socket methods //-- |
|
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585 |
| 64 | 586 local send = socket.send |
| 587 local receive = socket.receive | |
| 588 local close = socket.close | |
| 589 local shutdown = socket.shutdown | |
|
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590 |
| 64 | 591 --// public methods of the object //-- |
|
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592 |
| 64 | 593 local handler = { } |
|
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594 |
| 64 | 595 handler.getstats = function( ) |
| 596 return rstat, sstat | |
| 597 end | |
|
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598 |
| 64 | 599 handler.listener = function( data, err ) |
| 600 return listener( handler, data, err ) | |
| 601 end | |
| 602 handler.ssl = function( ) | |
| 603 return false | |
| 604 end | |
| 605 handler.send = function( _, data, i, j ) | |
| 606 return send( socket, data, i, j ) | |
| 607 end | |
| 608 handler.receive = function( pattern, prefix ) | |
| 609 return receive( socket, pattern, prefix ) | |
| 610 end | |
| 611 handler.shutdown = function( pattern ) | |
| 612 return shutdown( socket, pattern ) | |
| 613 end | |
| 614 handler.close = function( closed ) | |
| 615 _ = not closed and shutdown( socket ) | |
| 616 _ = not closed and close( socket ) | |
| 617 writelen = ( eol and removesocket( writelist, socket, writelen ) ) or writelen | |
| 618 readlen = removesocket( readlist, socket, readlen ) | |
| 619 socketlist[ socket ] = nil | |
| 620 out_put "server.lua: closed handler and removed socket from list" | |
| 621 end | |
| 622 handler.ip = function( ) | |
| 623 return ip | |
| 624 end | |
| 625 handler.serverport = function( ) | |
| 626 return serverport | |
| 627 end | |
| 628 handler.clientport = function( ) | |
| 629 return clientport | |
| 630 end | |
| 631 handler.write = function( data ) | |
| 632 if not eol then | |
| 633 writelen = writelen + 1 | |
| 634 writelist[ writelen ] = socket | |
| 635 eol = 0 | |
| 636 end | |
| 637 eol = eol + 1 | |
| 638 writequeue[ eol ] = data | |
| 639 end | |
| 640 handler.writequeue = function( ) | |
| 641 return writequeue | |
| 642 end | |
| 643 handler.socket = function( ) | |
| 644 return socket | |
| 645 end | |
| 646 handler.mode = function( ) | |
| 647 return mode | |
| 648 end | |
|
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649 |
| 64 | 650 handler.receivedata = function( ) |
| 651 local data, err, part = receive( socket, mode ) -- receive data in "mode" | |
| 652 if not err or ( err == "timeout" or err == "wantread" ) then -- received something | |
| 653 local data = data or part or "" | |
| 654 local count = #data * STAT_UNIT | |
| 655 rstat = rstat + count | |
| 656 receivestat = receivestat + count | |
| 657 out_put( "server.lua: read data '", data, "', error: ", err ) | |
| 658 return dispatch( handler, data, err ) | |
| 659 else -- connections was closed or fatal error | |
| 660 out_put( "server.lua: client ", ip, ":", clientport, " error: ", err ) | |
| 661 handler.close( ) | |
| 662 disconnect( handler, err ) | |
| 663 writequeue = nil | |
| 664 handler = nil | |
| 665 return false | |
| 666 end | |
| 667 end | |
|
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|
668 |
| 64 | 669 handler.dispatchdata = function( ) -- this function writes data to handlers |
| 670 local buffer = table_concat( writequeue, "", 1, eol ) | |
| 671 local succ, err, byte = send( socket, buffer ) | |
| 672 local count = ( succ or 0 ) * STAT_UNIT | |
| 673 sstat = sstat + count | |
| 674 sendstat = sendstat + count | |
| 675 out_put( "server.lua: sended '", buffer, "', bytes: ", succ, ", error: ", err, ", part: ", byte, ", to: ", ip, ":", clientport ) | |
| 676 if succ then -- sending succesful | |
| 677 --writequeue = { } | |
| 678 eol = nil | |
| 679 writelen = removesocket( writelist, socket, writelen ) -- delete socket from writelist | |
| 680 return true | |
| 681 elseif byte and ( err == "timeout" or err == "wantwrite" ) then -- want write | |
| 682 buffer = string_sub( buffer, byte + 1, -1 ) -- new buffer | |
| 683 writequeue[ 1 ] = buffer -- insert new buffer in queue | |
| 684 eol = 1 | |
| 685 return true | |
| 686 else -- connection was closed during sending or fatal error | |
| 687 out_put( "server.lua: client ", ip, ":", clientport, " error: ", err ) | |
| 688 handler.close( ) | |
| 689 disconnect( handler, err ) | |
| 690 writequeue = nil | |
| 691 handler = nil | |
| 692 return false | |
| 693 end | |
| 694 end | |
|
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695 |
| 64 | 696 -- // COMPAT // -- |
|
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697 |
| 64 | 698 handler.getIp = handler.ip |
| 699 handler.getPort = handler.clientport | |
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700 |
| 64 | 701 socketlist[ socket ] = handler |
| 702 readlen = readlen + 1 | |
| 703 readlist[ readlen ] = socket | |
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704 |
| 64 | 705 return handler, socket |
|
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706 end |
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707 |
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708 addtimer = function( listener ) |
| 64 | 709 timelistener[ #timelistener + 1 ] = listener |
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710 end |
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711 |
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712 firetimer = function( listener ) |
| 64 | 713 for i, listener in ipairs( timelistener ) do |
| 714 listener( ) | |
| 715 end | |
|
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716 end |
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717 |
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718 addserver = function( listeners, port, addr, mode, sslctx ) -- this function provides a way for other scripts to reg a server |
| 64 | 719 local err |
| 720 if type( listeners ) ~= "table" then | |
| 721 err = "invalid listener table" | |
| 722 else | |
| 723 for name, func in pairs( listeners ) do | |
| 724 if type( func ) ~= "function" then | |
|
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|
725 --err = "invalid listener function" |
| 64 | 726 break |
| 727 end | |
| 728 end | |
| 729 end | |
| 730 if not type( port ) == "number" or not ( port >= 0 and port <= 65535 ) then | |
| 731 err = "invalid port" | |
| 732 elseif listener[ port ] then | |
| 733 err= "listeners on port '" .. port .. "' already exist" | |
| 734 elseif sslctx and not luasec then | |
| 735 err = "luasec not found" | |
| 736 end | |
| 737 if err then | |
| 738 out_error( "server.lua: ", err ) | |
| 739 return nil, err | |
| 740 end | |
| 741 addr = addr or "*" | |
| 742 local server, err = socket_bind( addr, port ) | |
| 743 if err then | |
| 744 out_error( "server.lua: ", err ) | |
| 745 return nil, err | |
| 746 end | |
| 747 local handler, err = wrapserver( listeners, server, addr, port, mode, sslctx ) -- wrap new server socket | |
| 748 if not handler then | |
| 749 server:close( ) | |
| 750 return nil, err | |
| 751 end | |
| 752 server:settimeout( 0 ) | |
| 753 readlen = readlen + 1 | |
| 754 readlist[ readlen ] = server | |
| 755 listener[ port ] = listeners | |
| 756 socketlist[ server ] = handler | |
| 757 out_put( "server.lua: new server listener on ", addr, ":", port ) | |
| 758 return true | |
|
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759 end |
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760 |
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761 removesocket = function( tbl, socket, len ) -- this function removes sockets from a list |
| 64 | 762 for i, target in ipairs( tbl ) do |
| 763 if target == socket then | |
| 764 len = len - 1 | |
| 765 table_remove( tbl, i ) | |
| 766 return len | |
| 767 end | |
| 768 end | |
| 769 return len | |
|
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770 end |
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771 |
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|
772 closeall = function( ) |
| 64 | 773 for sock, handler in pairs( socketlist ) do |
| 774 handler.shutdown( ) | |
| 775 handler.close( ) | |
| 776 socketlist[ sock ] = nil | |
| 777 end | |
| 778 writelist, readlist, socketlist = { }, { }, { } | |
|
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779 end |
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780 |
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781 closesocket = function( socket ) |
| 64 | 782 writelen = removesocket( writelist, socket, writelen ) |
| 783 readlen = removesocket( readlist, socket, readlen ) | |
| 784 socketlist[ socket ] = nil | |
| 785 socket:close( ) | |
|
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786 end |
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787 |
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788 loop = function( ) -- this is the main loop of the program |
| 64 | 789 --signal_set( "hub", "run" ) |
| 790 repeat | |
| 66 | 791 --[[print(readlen, writelen) |
| 792 for _, s in ipairs(readlist) do print("R:", tostring(s)) end | |
| 793 for _, s in ipairs(writelist) do print("W:", tostring(s)) end | |
| 794 out_put("select()"..os.time())]] | |
| 64 | 795 local read, write, err = socket_select( readlist, writelist, 1 ) -- 1 sec timeout, nice for timers |
| 796 for i, socket in ipairs( write ) do -- send data waiting in writequeues | |
| 797 local handler = socketlist[ socket ] | |
| 798 if handler then | |
| 799 handler.dispatchdata( ) | |
| 800 else | |
| 801 closesocket( socket ) | |
| 802 out_put "server.lua: found no handler and closed socket (writelist)" -- this should not happen | |
| 803 end | |
| 804 end | |
| 805 for i, socket in ipairs( read ) do -- receive data | |
| 806 local handler = socketlist[ socket ] | |
| 807 if handler then | |
| 808 handler.receivedata( ) | |
| 809 else | |
| 810 closesocket( socket ) | |
| 811 out_put "server.lua: found no handler and closed socket (readlist)" -- this can happen | |
| 812 end | |
| 813 end | |
| 814 firetimer( ) | |
|
65
9c471840acb9
TLS: Handshake works, no data after that
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diff
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|
815 until false |
|
9c471840acb9
TLS: Handshake works, no data after that
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64
diff
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|
816 return |
|
1
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817 end |
|
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|
818 |
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diff
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|
819 ----------------------------------// BEGIN //-- |
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|
820 |
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|
821 ----------------------------------// PUBLIC INTERFACE //-- |
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diff
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|
822 |
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matthew
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|
823 return { |
|
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matthew
parents:
diff
changeset
|
824 |
| 64 | 825 add = addserver, |
| 826 loop = loop, | |
| 827 stats = stats, | |
| 828 closeall = closeall, | |
| 829 addtimer = addtimer, | |
|
1
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matthew
parents:
diff
changeset
|
830 |
|
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matthew
parents:
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changeset
|
831 } |
