Mercurial > lxmppd-hg-xmllex / file comparison
comparison: net/server_select.lua
net/server_select.lua
- changeset 2581
- 1b9f424e695e
- parent 2559
- a90a00ebae25
- child 2582
- d6afb6d919df
equal
deleted
inserted
replaced
| 2580:61f0acd9086f | 2581:1b9f424e695e |
|---|---|
| 6 -- | 6 -- |
| 7 | 7 |
| 8 -- // wrapping luadch stuff // -- | 8 -- // wrapping luadch stuff // -- |
| 9 | 9 |
| 10 local use = function( what ) | 10 local use = function( what ) |
| 11 return _G[ what ] | 11 return _G[ what ] |
| 12 end | 12 end |
| 13 local clean = function( tbl ) | 13 local clean = function( tbl ) |
| 14 for i, k in pairs( tbl ) do | 14 for i, k in pairs( tbl ) do |
| 15 tbl[ i ] = nil | 15 tbl[ i ] = nil |
| 16 end | 16 end |
| 17 end | 17 end |
| 18 | 18 |
| 19 local log, table_concat = require ("util.logger").init("socket"), table.concat; | 19 local log, table_concat = require ("util.logger").init("socket"), table.concat; |
| 20 local out_put = function (...) return log("debug", table_concat{...}); end | 20 local out_put = function (...) return log("debug", table_concat{...}); end |
| 21 local out_error = function (...) return log("warn", table_concat{...}); end | 21 local out_error = function (...) return log("warn", table_concat{...}); end |
| 23 | 23 |
| 24 ----------------------------------// DECLARATION //-- | 24 ----------------------------------// DECLARATION //-- |
| 25 | 25 |
| 26 --// constants //-- | 26 --// constants //-- |
| 27 | 27 |
| 28 local STAT_UNIT = 1 -- byte | 28 local STAT_UNIT = 1 -- byte |
| 29 | 29 |
| 30 --// lua functions //-- | 30 --// lua functions //-- |
| 31 | 31 |
| 32 local type = use "type" | 32 local type = use "type" |
| 33 local pairs = use "pairs" | 33 local pairs = use "pairs" |
| 125 | 125 |
| 126 local _maxclientsperserver | 126 local _maxclientsperserver |
| 127 | 127 |
| 128 ----------------------------------// DEFINITION //-- | 128 ----------------------------------// DEFINITION //-- |
| 129 | 129 |
| 130 _server = { } -- key = port, value = table; list of listening servers | 130 _server = { } -- key = port, value = table; list of listening servers |
| 131 _readlist = { } -- array with sockets to read from | 131 _readlist = { } -- array with sockets to read from |
| 132 _sendlist = { } -- arrary with sockets to write to | 132 _sendlist = { } -- arrary with sockets to write to |
| 133 _timerlist = { } -- array of timer functions | 133 _timerlist = { } -- array of timer functions |
| 134 _socketlist = { } -- key = socket, value = wrapped socket (handlers) | 134 _socketlist = { } -- key = socket, value = wrapped socket (handlers) |
| 135 _readtimes = { } -- key = handler, value = timestamp of last data reading | 135 _readtimes = { } -- key = handler, value = timestamp of last data reading |
| 136 _writetimes = { } -- key = handler, value = timestamp of last data writing/sending | 136 _writetimes = { } -- key = handler, value = timestamp of last data writing/sending |
| 137 _closelist = { } -- handlers to close | 137 _closelist = { } -- handlers to close |
| 138 | 138 |
| 139 _readlistlen = 0 -- length of readlist | 139 _readlistlen = 0 -- length of readlist |
| 140 _sendlistlen = 0 -- length of sendlist | 140 _sendlistlen = 0 -- length of sendlist |
| 141 _timerlistlen = 0 -- lenght of timerlist | 141 _timerlistlen = 0 -- lenght of timerlist |
| 142 | 142 |
| 143 _sendtraffic = 0 -- some stats | 143 _sendtraffic = 0 -- some stats |
| 144 _readtraffic = 0 | 144 _readtraffic = 0 |
| 145 | 145 |
| 146 _selecttimeout = 1 -- timeout of socket.select | 146 _selecttimeout = 1 -- timeout of socket.select |
| 147 _sleeptime = 0 -- time to wait at the end of every loop | 147 _sleeptime = 0 -- time to wait at the end of every loop |
| 148 | 148 |
| 149 _maxsendlen = 51000 * 1024 -- max len of send buffer | 149 _maxsendlen = 51000 * 1024 -- max len of send buffer |
| 150 _maxreadlen = 25000 * 1024 -- max len of read buffer | 150 _maxreadlen = 25000 * 1024 -- max len of read buffer |
| 151 | 151 |
| 152 _checkinterval = 1200000 -- interval in secs to check idle clients | 152 _checkinterval = 1200000 -- interval in secs to check idle clients |
| 153 _sendtimeout = 60000 -- allowed send idle time in secs | 153 _sendtimeout = 60000 -- allowed send idle time in secs |
| 154 _readtimeout = 6 * 60 * 60 -- allowed read idle time in secs | 154 _readtimeout = 6 * 60 * 60 -- allowed read idle time in secs |
| 155 | 155 |
| 156 _cleanqueue = false -- clean bufferqueue after using | 156 _cleanqueue = false -- clean bufferqueue after using |
| 157 | 157 |
| 158 _maxclientsperserver = 1000 | 158 _maxclientsperserver = 1000 |
| 159 | 159 |
| 160 _maxsslhandshake = 30 -- max handshake round-trips | 160 _maxsslhandshake = 30 -- max handshake round-trips |
| 161 | |
| 161 ----------------------------------// PRIVATE //-- | 162 ----------------------------------// PRIVATE //-- |
| 162 | 163 |
| 163 wrapserver = function( listeners, socket, ip, serverport, pattern, sslctx, maxconnections ) -- this function wraps a server | 164 wrapserver = function( listeners, socket, ip, serverport, pattern, sslctx, maxconnections ) -- this function wraps a server |
| 164 | 165 |
| 165 maxconnections = maxconnections or _maxclientsperserver | 166 maxconnections = maxconnections or _maxclientsperserver |
| 166 | 167 |
| 167 local connections = 0 | 168 local connections = 0 |
| 168 | 169 |
| 169 local dispatch, disconnect = listeners.onincoming, listeners.ondisconnect | 170 local dispatch, disconnect = listeners.onincoming, listeners.ondisconnect |
| 170 | 171 |
| 171 local accept = socket.accept | 172 local accept = socket.accept |
| 172 | 173 |
| 173 --// public methods of the object //-- | 174 --// public methods of the object //-- |
| 174 | 175 |
| 175 local handler = { } | 176 local handler = { } |
| 176 | 177 |
| 177 handler.shutdown = function( ) end | 178 handler.shutdown = function( ) end |
| 178 | 179 |
| 179 handler.ssl = function( ) | 180 handler.ssl = function( ) |
| 180 return sslctx ~= nil | 181 return sslctx ~= nil |
| 181 end | 182 end |
| 182 handler.sslctx = function( ) | 183 handler.sslctx = function( ) |
| 183 return sslctx | 184 return sslctx |
| 184 end | 185 end |
| 185 handler.remove = function( ) | 186 handler.remove = function( ) |
| 186 connections = connections - 1 | 187 connections = connections - 1 |
| 187 end | 188 end |
| 188 handler.close = function( ) | 189 handler.close = function( ) |
| 189 for _, handler in pairs( _socketlist ) do | 190 for _, handler in pairs( _socketlist ) do |
| 190 if handler.serverport == serverport then | 191 if handler.serverport == serverport then |
| 191 handler.disconnect( handler, "server closed" ) | 192 handler.disconnect( handler, "server closed" ) |
| 192 handler:close( true ) | 193 handler:close( true ) |
| 193 end | 194 end |
| 194 end | 195 end |
| 195 socket:close( ) | 196 socket:close( ) |
| 196 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) | 197 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
| 197 _readlistlen = removesocket( _readlist, socket, _readlistlen ) | 198 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
| 198 _socketlist[ socket ] = nil | 199 _socketlist[ socket ] = nil |
| 199 handler = nil | 200 handler = nil |
| 200 socket = nil | 201 socket = nil |
| 201 --mem_free( ) | 202 --mem_free( ) |
| 202 out_put "server.lua: closed server handler and removed sockets from list" | 203 out_put "server.lua: closed server handler and removed sockets from list" |
| 203 end | 204 end |
| 204 handler.ip = function( ) | 205 handler.ip = function( ) |
| 205 return ip | 206 return ip |
| 206 end | 207 end |
| 207 handler.serverport = function( ) | 208 handler.serverport = function( ) |
| 208 return serverport | 209 return serverport |
| 209 end | 210 end |
| 210 handler.socket = function( ) | 211 handler.socket = function( ) |
| 211 return socket | 212 return socket |
| 212 end | 213 end |
| 213 handler.readbuffer = function( ) | 214 handler.readbuffer = function( ) |
| 214 if connections > maxconnections then | 215 if connections > maxconnections then |
| 215 out_put( "server.lua: refused new client connection: server full" ) | 216 out_put( "server.lua: refused new client connection: server full" ) |
| 216 return false | 217 return false |
| 217 end | 218 end |
| 218 local client, err = accept( socket ) -- try to accept | 219 local client, err = accept( socket ) -- try to accept |
| 219 if client then | 220 if client then |
| 220 local ip, clientport = client:getpeername( ) | 221 local ip, clientport = client:getpeername( ) |
| 221 client:settimeout( 0 ) | 222 client:settimeout( 0 ) |
| 222 local handler, client, err = wrapconnection( handler, listeners, client, ip, serverport, clientport, pattern, sslctx ) -- wrap new client socket | 223 local handler, client, err = wrapconnection( handler, listeners, client, ip, serverport, clientport, pattern, sslctx ) -- wrap new client socket |
| 223 if err then -- error while wrapping ssl socket | 224 if err then -- error while wrapping ssl socket |
| 224 return false | 225 return false |
| 225 end | 226 end |
| 226 connections = connections + 1 | 227 connections = connections + 1 |
| 227 out_put( "server.lua: accepted new client connection from ", tostring(ip), ":", tostring(clientport), " to ", tostring(serverport)) | 228 out_put( "server.lua: accepted new client connection from ", tostring(ip), ":", tostring(clientport), " to ", tostring(serverport)) |
| 228 return dispatch( handler ) | 229 return dispatch( handler ) |
| 229 elseif err then -- maybe timeout or something else | 230 elseif err then -- maybe timeout or something else |
| 230 out_put( "server.lua: error with new client connection: ", tostring(err) ) | 231 out_put( "server.lua: error with new client connection: ", tostring(err) ) |
| 231 return false | 232 return false |
| 232 end | 233 end |
| 233 end | 234 end |
| 234 return handler | 235 return handler |
| 235 end | 236 end |
| 236 | 237 |
| 237 wrapconnection = function( server, listeners, socket, ip, serverport, clientport, pattern, sslctx ) -- this function wraps a client to a handler object | 238 wrapconnection = function( server, listeners, socket, ip, serverport, clientport, pattern, sslctx ) -- this function wraps a client to a handler object |
| 238 | 239 |
| 239 socket:settimeout( 0 ) | 240 socket:settimeout( 0 ) |
| 240 | 241 |
| 241 --// local import of socket methods //-- | 242 --// local import of socket methods //-- |
| 242 | 243 |
| 243 local send | 244 local send |
| 244 local receive | 245 local receive |
| 245 local shutdown | 246 local shutdown |
| 246 | 247 |
| 247 --// private closures of the object //-- | 248 --// private closures of the object //-- |
| 248 | 249 |
| 249 local ssl | 250 local ssl |
| 250 | 251 |
| 251 local dispatch = listeners.onincoming | 252 local dispatch = listeners.onincoming |
| 252 local status = listeners.onstatus | 253 local status = listeners.onstatus |
| 253 local disconnect = listeners.ondisconnect | 254 local disconnect = listeners.ondisconnect |
| 254 | 255 |
| 255 local bufferqueue = { } -- buffer array | 256 local bufferqueue = { } -- buffer array |
| 256 local bufferqueuelen = 0 -- end of buffer array | 257 local bufferqueuelen = 0 -- end of buffer array |
| 257 | 258 |
| 258 local toclose | 259 local toclose |
| 259 local fatalerror | 260 local fatalerror |
| 260 local needtls | 261 local needtls |
| 261 | 262 |
| 262 local bufferlen = 0 | 263 local bufferlen = 0 |
| 263 | 264 |
| 264 local noread = false | 265 local noread = false |
| 265 local nosend = false | 266 local nosend = false |
| 266 | 267 |
| 267 local sendtraffic, readtraffic = 0, 0 | 268 local sendtraffic, readtraffic = 0, 0 |
| 268 | 269 |
| 269 local maxsendlen = _maxsendlen | 270 local maxsendlen = _maxsendlen |
| 270 local maxreadlen = _maxreadlen | 271 local maxreadlen = _maxreadlen |
| 271 | 272 |
| 272 --// public methods of the object //-- | 273 --// public methods of the object //-- |
| 273 | 274 |
| 274 local handler = bufferqueue -- saves a table ^_^ | 275 local handler = bufferqueue -- saves a table ^_^ |
| 275 | 276 |
| 276 handler.dispatch = function( ) | 277 handler.dispatch = function( ) |
| 277 return dispatch | 278 return dispatch |
| 278 end | 279 end |
| 279 handler.disconnect = function( ) | 280 handler.disconnect = function( ) |
| 280 return disconnect | 281 return disconnect |
| 281 end | 282 end |
| 282 handler.setlistener = function( self, listeners ) | 283 handler.setlistener = function( self, listeners ) |
| 283 dispatch = listeners.onincoming | 284 dispatch = listeners.onincoming |
| 284 disconnect = listeners.ondisconnect | 285 disconnect = listeners.ondisconnect |
| 285 status = listeners.onstatus | 286 status = listeners.onstatus |
| 286 end | 287 end |
| 287 handler.getstats = function( ) | 288 handler.getstats = function( ) |
| 288 return readtraffic, sendtraffic | 289 return readtraffic, sendtraffic |
| 289 end | 290 end |
| 290 handler.ssl = function( ) | 291 handler.ssl = function( ) |
| 291 return ssl | 292 return ssl |
| 292 end | 293 end |
| 293 handler.sslctx = function ( ) | 294 handler.sslctx = function ( ) |
| 294 return sslctx | 295 return sslctx |
| 295 end | 296 end |
| 296 handler.send = function( _, data, i, j ) | 297 handler.send = function( _, data, i, j ) |
| 297 return send( socket, data, i, j ) | 298 return send( socket, data, i, j ) |
| 298 end | 299 end |
| 299 handler.receive = function( pattern, prefix ) | 300 handler.receive = function( pattern, prefix ) |
| 300 return receive( socket, pattern, prefix ) | 301 return receive( socket, pattern, prefix ) |
| 301 end | 302 end |
| 302 handler.shutdown = function( pattern ) | 303 handler.shutdown = function( pattern ) |
| 303 return shutdown( socket, pattern ) | 304 return shutdown( socket, pattern ) |
| 304 end | 305 end |
| 305 handler.setoption = function (self, option, value) | 306 handler.setoption = function (self, option, value) |
| 306 if socket.setoption then | 307 if socket.setoption then |
| 307 return socket:setoption(option, value); | 308 return socket:setoption(option, value); |
| 308 end | 309 end |
| 309 return false, "setoption not implemented"; | 310 return false, "setoption not implemented"; |
| 310 end | 311 end |
| 311 handler.close = function( self, forced ) | 312 handler.close = function( self, forced ) |
| 312 if not handler then return true; end | 313 if not handler then return true; end |
| 313 _readlistlen = removesocket( _readlist, socket, _readlistlen ) | 314 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
| 314 _readtimes[ handler ] = nil | 315 _readtimes[ handler ] = nil |
| 315 if bufferqueuelen ~= 0 then | 316 if bufferqueuelen ~= 0 then |
| 316 if not ( forced or fatalerror ) then | 317 if not ( forced or fatalerror ) then |
| 317 handler.sendbuffer( ) | 318 handler.sendbuffer( ) |
| 318 if bufferqueuelen ~= 0 then -- try again... | 319 if bufferqueuelen ~= 0 then -- try again... |
| 319 if handler then | 320 if handler then |
| 320 handler.write = nil -- ... but no further writing allowed | 321 handler.write = nil -- ... but no further writing allowed |
| 321 end | 322 end |
| 322 toclose = true | 323 toclose = true |
| 323 return false | 324 return false |
| 324 end | 325 end |
| 325 else | 326 else |
| 326 send( socket, table_concat( bufferqueue, "", 1, bufferqueuelen ), 1, bufferlen ) -- forced send | 327 send( socket, table_concat( bufferqueue, "", 1, bufferqueuelen ), 1, bufferlen ) -- forced send |
| 327 end | 328 end |
| 328 end | 329 end |
| 329 if socket then | 330 if socket then |
| 330 _ = shutdown and shutdown( socket ) | 331 _ = shutdown and shutdown( socket ) |
| 331 socket:close( ) | 332 socket:close( ) |
| 332 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) | 333 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
| 333 _socketlist[ socket ] = nil | 334 _socketlist[ socket ] = nil |
| 334 socket = nil | 335 socket = nil |
| 335 else | 336 else |
| 336 out_put "server.lua: socket already closed" | 337 out_put "server.lua: socket already closed" |
| 337 end | 338 end |
| 338 if handler then | 339 if handler then |
| 339 _writetimes[ handler ] = nil | 340 _writetimes[ handler ] = nil |
| 340 _closelist[ handler ] = nil | 341 _closelist[ handler ] = nil |
| 341 handler = nil | 342 handler = nil |
| 342 end | 343 end |
| 343 if server then | 344 if server then |
| 344 server.remove( ) | 345 server.remove( ) |
| 345 end | 346 end |
| 346 out_put "server.lua: closed client handler and removed socket from list" | 347 out_put "server.lua: closed client handler and removed socket from list" |
| 347 return true | 348 return true |
| 348 end | 349 end |
| 349 handler.ip = function( ) | 350 handler.ip = function( ) |
| 350 return ip | 351 return ip |
| 351 end | 352 end |
| 352 handler.serverport = function( ) | 353 handler.serverport = function( ) |
| 353 return serverport | 354 return serverport |
| 354 end | 355 end |
| 355 handler.clientport = function( ) | 356 handler.clientport = function( ) |
| 356 return clientport | 357 return clientport |
| 357 end | 358 end |
| 358 local write = function( self, data ) | 359 local write = function( self, data ) |
| 359 bufferlen = bufferlen + string_len( data ) | 360 bufferlen = bufferlen + string_len( data ) |
| 360 if bufferlen > maxsendlen then | 361 if bufferlen > maxsendlen then |
| 361 _closelist[ handler ] = "send buffer exceeded" -- cannot close the client at the moment, have to wait to the end of the cycle | 362 _closelist[ handler ] = "send buffer exceeded" -- cannot close the client at the moment, have to wait to the end of the cycle |
| 362 handler.write = idfalse -- dont write anymore | 363 handler.write = idfalse -- dont write anymore |
| 363 return false | 364 return false |
| 364 elseif socket and not _sendlist[ socket ] then | 365 elseif socket and not _sendlist[ socket ] then |
| 365 _sendlistlen = addsocket(_sendlist, socket, _sendlistlen) | 366 _sendlistlen = addsocket(_sendlist, socket, _sendlistlen) |
| 366 end | 367 end |
| 367 bufferqueuelen = bufferqueuelen + 1 | 368 bufferqueuelen = bufferqueuelen + 1 |
| 368 bufferqueue[ bufferqueuelen ] = data | 369 bufferqueue[ bufferqueuelen ] = data |
| 369 if handler then | 370 if handler then |
| 370 _writetimes[ handler ] = _writetimes[ handler ] or _currenttime | 371 _writetimes[ handler ] = _writetimes[ handler ] or _currenttime |
| 371 end | 372 end |
| 372 return true | 373 return true |
| 373 end | 374 end |
| 374 handler.write = write | 375 handler.write = write |
| 375 handler.bufferqueue = function( self ) | 376 handler.bufferqueue = function( self ) |
| 376 return bufferqueue | 377 return bufferqueue |
| 377 end | 378 end |
| 378 handler.socket = function( self ) | 379 handler.socket = function( self ) |
| 379 return socket | 380 return socket |
| 380 end | 381 end |
| 381 handler.pattern = function( self, new ) | 382 handler.pattern = function( self, new ) |
| 382 pattern = new or pattern | 383 pattern = new or pattern |
| 383 return pattern | 384 return pattern |
| 384 end | 385 end |
| 385 handler.set_send = function ( self, newsend ) | 386 handler.set_send = function ( self, newsend ) |
| 386 send = newsend or send | 387 send = newsend or send |
| 387 return send | 388 return send |
| 388 end | 389 end |
| 389 handler.bufferlen = function( self, readlen, sendlen ) | 390 handler.bufferlen = function( self, readlen, sendlen ) |
| 390 maxsendlen = sendlen or maxsendlen | 391 maxsendlen = sendlen or maxsendlen |
| 391 maxreadlen = readlen or maxreadlen | 392 maxreadlen = readlen or maxreadlen |
| 392 return bufferlen, maxreadlen, maxsendlen | 393 return bufferlen, maxreadlen, maxsendlen |
| 393 end | 394 end |
| 394 handler.lock_read = function (self, switch) | 395 handler.lock_read = function (self, switch) |
| 395 if switch == true then | 396 if switch == true then |
| 396 local tmp = _readlistlen | 397 local tmp = _readlistlen |
| 397 _readlistlen = removesocket( _readlist, socket, _readlistlen ) | 398 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
| 398 _readtimes[ handler ] = nil | 399 _readtimes[ handler ] = nil |
| 399 if _readlistlen ~= tmp then | 400 if _readlistlen ~= tmp then |
| 400 noread = true | 401 noread = true |
| 401 end | 402 end |
| 402 elseif switch == false then | 403 elseif switch == false then |
| 403 if noread then | 404 if noread then |
| 404 noread = false | 405 noread = false |
| 405 _readlistlen = addsocket(_readlist, socket, _readlistlen) | 406 _readlistlen = addsocket(_readlist, socket, _readlistlen) |
| 406 _readtimes[ handler ] = _currenttime | 407 _readtimes[ handler ] = _currenttime |
| 407 end | 408 end |
| 408 end | 409 end |
| 409 return noread | 410 return noread |
| 410 end | 411 end |
| 411 handler.lock = function( self, switch ) | 412 handler.lock = function( self, switch ) |
| 412 handler.lock_read (switch) | 413 handler.lock_read (switch) |
| 413 if switch == true then | 414 if switch == true then |
| 414 handler.write = idfalse | 415 handler.write = idfalse |
| 415 local tmp = _sendlistlen | 416 local tmp = _sendlistlen |
| 416 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) | 417 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
| 417 _writetimes[ handler ] = nil | 418 _writetimes[ handler ] = nil |
| 418 if _sendlistlen ~= tmp then | 419 if _sendlistlen ~= tmp then |
| 419 nosend = true | 420 nosend = true |
| 420 end | 421 end |
| 421 elseif switch == false then | 422 elseif switch == false then |
| 422 handler.write = write | 423 handler.write = write |
| 423 if nosend then | 424 if nosend then |
| 424 nosend = false | 425 nosend = false |
| 425 write( "" ) | 426 write( "" ) |
| 426 end | 427 end |
| 427 end | 428 end |
| 428 return noread, nosend | 429 return noread, nosend |
| 429 end | 430 end |
| 430 local _readbuffer = function( ) -- this function reads data | 431 local _readbuffer = function( ) -- this function reads data |
| 431 local buffer, err, part = receive( socket, pattern ) -- receive buffer with "pattern" | 432 local buffer, err, part = receive( socket, pattern ) -- receive buffer with "pattern" |
| 432 if not err or (err == "wantread" or err == "timeout") or string_len(part) > 0 then -- received something | 433 if not err or (err == "wantread" or err == "timeout") or string_len(part) > 0 then -- received something |
| 433 local buffer = buffer or part or "" | 434 local buffer = buffer or part or "" |
| 434 local len = string_len( buffer ) | 435 local len = string_len( buffer ) |
| 435 if len > maxreadlen then | 436 if len > maxreadlen then |
| 436 disconnect( handler, "receive buffer exceeded" ) | 437 disconnect( handler, "receive buffer exceeded" ) |
| 437 handler.close( true ) | 438 handler.close( true ) |
| 438 return false | 439 return false |
| 439 end | 440 end |
| 440 local count = len * STAT_UNIT | 441 local count = len * STAT_UNIT |
| 441 readtraffic = readtraffic + count | 442 readtraffic = readtraffic + count |
| 442 _readtraffic = _readtraffic + count | 443 _readtraffic = _readtraffic + count |
| 443 _readtimes[ handler ] = _currenttime | 444 _readtimes[ handler ] = _currenttime |
| 444 --out_put( "server.lua: read data '", buffer:gsub("[^%w%p ]", "."), "', error: ", err ) | 445 --out_put( "server.lua: read data '", buffer:gsub("[^%w%p ]", "."), "', error: ", err ) |
| 445 return dispatch( handler, buffer, err ) | 446 return dispatch( handler, buffer, err ) |
| 446 else -- connections was closed or fatal error | 447 else -- connections was closed or fatal error |
| 447 out_put( "server.lua: client ", tostring(ip), ":", tostring(clientport), " read error: ", tostring(err) ) | 448 out_put( "server.lua: client ", tostring(ip), ":", tostring(clientport), " read error: ", tostring(err) ) |
| 448 fatalerror = true | 449 fatalerror = true |
| 449 disconnect( handler, err ) | 450 disconnect( handler, err ) |
| 450 _ = handler and handler.close( ) | 451 _ = handler and handler.close( ) |
| 451 return false | 452 return false |
| 452 end | 453 end |
| 453 end | 454 end |
| 454 local _sendbuffer = function( ) -- this function sends data | 455 local _sendbuffer = function( ) -- this function sends data |
| 455 local succ, err, byte, buffer, count; | 456 local succ, err, byte, buffer, count; |
| 456 local count; | 457 local count; |
| 457 if socket then | 458 if socket then |
| 458 buffer = table_concat( bufferqueue, "", 1, bufferqueuelen ) | 459 buffer = table_concat( bufferqueue, "", 1, bufferqueuelen ) |
| 459 succ, err, byte = send( socket, buffer, 1, bufferlen ) | 460 succ, err, byte = send( socket, buffer, 1, bufferlen ) |
| 460 count = ( succ or byte or 0 ) * STAT_UNIT | 461 count = ( succ or byte or 0 ) * STAT_UNIT |
| 461 sendtraffic = sendtraffic + count | 462 sendtraffic = sendtraffic + count |
| 462 _sendtraffic = _sendtraffic + count | 463 _sendtraffic = _sendtraffic + count |
| 463 _ = _cleanqueue and clean( bufferqueue ) | 464 _ = _cleanqueue and clean( bufferqueue ) |
| 464 --out_put( "server.lua: sended '", buffer, "', bytes: ", tostring(succ), ", error: ", tostring(err), ", part: ", tostring(byte), ", to: ", tostring(ip), ":", tostring(clientport) ) | 465 --out_put( "server.lua: sended '", buffer, "', bytes: ", tostring(succ), ", error: ", tostring(err), ", part: ", tostring(byte), ", to: ", tostring(ip), ":", tostring(clientport) ) |
| 465 else | 466 else |
| 466 succ, err, count = false, "closed", 0; | 467 succ, err, count = false, "closed", 0; |
| 467 end | 468 end |
| 468 if succ then -- sending succesful | 469 if succ then -- sending succesful |
| 469 bufferqueuelen = 0 | 470 bufferqueuelen = 0 |
| 470 bufferlen = 0 | 471 bufferlen = 0 |
| 471 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) -- delete socket from writelist | 472 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) -- delete socket from writelist |
| 472 _ = needtls and handler:starttls(nil, true) | 473 _ = needtls and handler:starttls(nil, true) |
| 473 _writetimes[ handler ] = nil | 474 _writetimes[ handler ] = nil |
| 474 _ = toclose and handler.close( ) | 475 _ = toclose and handler.close( ) |
| 475 return true | 476 return true |
| 476 elseif byte and ( err == "timeout" or err == "wantwrite" ) then -- want write | 477 elseif byte and ( err == "timeout" or err == "wantwrite" ) then -- want write |
| 477 buffer = string_sub( buffer, byte + 1, bufferlen ) -- new buffer | 478 buffer = string_sub( buffer, byte + 1, bufferlen ) -- new buffer |
| 478 bufferqueue[ 1 ] = buffer -- insert new buffer in queue | 479 bufferqueue[ 1 ] = buffer -- insert new buffer in queue |
| 479 bufferqueuelen = 1 | 480 bufferqueuelen = 1 |
| 480 bufferlen = bufferlen - byte | 481 bufferlen = bufferlen - byte |
| 481 _writetimes[ handler ] = _currenttime | 482 _writetimes[ handler ] = _currenttime |
| 482 return true | 483 return true |
| 483 else -- connection was closed during sending or fatal error | 484 else -- connection was closed during sending or fatal error |
| 484 out_put( "server.lua: client ", tostring(ip), ":", tostring(clientport), " write error: ", tostring(err) ) | 485 out_put( "server.lua: client ", tostring(ip), ":", tostring(clientport), " write error: ", tostring(err) ) |
| 485 fatalerror = true | 486 fatalerror = true |
| 486 disconnect( handler, err ) | 487 disconnect( handler, err ) |
| 487 _ = handler and handler.close( ) | 488 _ = handler and handler.close( ) |
| 488 return false | 489 return false |
| 489 end | 490 end |
| 490 end | 491 end |
| 491 | 492 |
| 492 -- Set the sslctx | 493 -- Set the sslctx |
| 493 local handshake; | 494 local handshake; |
| 494 function handler.set_sslctx(self, new_sslctx) | 495 function handler.set_sslctx(self, new_sslctx) |
| 495 ssl = true | 496 ssl = true |
| 496 sslctx = new_sslctx; | 497 sslctx = new_sslctx; |
| 497 local wrote | 498 local wrote |
| 498 local read | 499 local read |
| 499 handshake = coroutine_wrap( function( client ) -- create handshake coroutine | 500 handshake = coroutine_wrap( function( client ) -- create handshake coroutine |
| 500 local err | 501 local err |
| 501 for i = 1, _maxsslhandshake do | 502 for i = 1, _maxsslhandshake do |
| 502 _sendlistlen = ( wrote and removesocket( _sendlist, client, _sendlistlen ) ) or _sendlistlen | 503 _sendlistlen = ( wrote and removesocket( _sendlist, client, _sendlistlen ) ) or _sendlistlen |
| 503 _readlistlen = ( read and removesocket( _readlist, client, _readlistlen ) ) or _readlistlen | 504 _readlistlen = ( read and removesocket( _readlist, client, _readlistlen ) ) or _readlistlen |
| 504 read, wrote = nil, nil | 505 read, wrote = nil, nil |
| 505 _, err = client:dohandshake( ) | 506 _, err = client:dohandshake( ) |
| 506 if not err then | 507 if not err then |
| 507 out_put( "server.lua: ssl handshake done" ) | 508 out_put( "server.lua: ssl handshake done" ) |
| 508 handler.readbuffer = _readbuffer -- when handshake is done, replace the handshake function with regular functions | 509 handler.readbuffer = _readbuffer -- when handshake is done, replace the handshake function with regular functions |
| 509 handler.sendbuffer = _sendbuffer | 510 handler.sendbuffer = _sendbuffer |
| 510 _ = status and status( handler, "ssl-handshake-complete" ) | 511 _ = status and status( handler, "ssl-handshake-complete" ) |
| 511 _readlistlen = addsocket(_readlist, client, _readlistlen) | 512 _readlistlen = addsocket(_readlist, client, _readlistlen) |
| 512 return true | 513 return true |
| 513 else | 514 else |
| 514 out_put( "server.lua: error during ssl handshake: ", tostring(err) ) | 515 out_put( "server.lua: error during ssl handshake: ", tostring(err) ) |
| 515 if err == "wantwrite" and not wrote then | 516 if err == "wantwrite" and not wrote then |
| 516 _sendlistlen = addsocket(_sendlist, client, _sendlistlen) | 517 _sendlistlen = addsocket(_sendlist, client, _sendlistlen) |
| 517 wrote = true | 518 wrote = true |
| 518 elseif err == "wantread" and not read then | 519 elseif err == "wantread" and not read then |
| 519 _readlistlen = addsocket(_readlist, client, _readlistlen) | 520 _readlistlen = addsocket(_readlist, client, _readlistlen) |
| 520 read = true | 521 read = true |
| 521 else | 522 else |
| 522 break; | 523 break; |
| 523 end | 524 end |
| 524 --coroutine_yield( handler, nil, err ) -- handshake not finished | 525 --coroutine_yield( handler, nil, err ) -- handshake not finished |
| 525 coroutine_yield( ) | 526 coroutine_yield( ) |
| 526 end | 527 end |
| 527 end | 528 end |
| 528 disconnect( handler, "ssl handshake failed" ) | 529 disconnect( handler, "ssl handshake failed" ) |
| 529 _ = handler and handler:close( true ) -- forced disconnect | 530 _ = handler and handler:close( true ) -- forced disconnect |
| 530 return false -- handshake failed | 531 return false -- handshake failed |
| 531 end | 532 end |
| 532 ) | 533 ) |
| 533 end | 534 end |
| 534 if sslctx then -- ssl? | 535 if sslctx then -- ssl? |
| 535 handler:set_sslctx(sslctx); | 536 handler:set_sslctx(sslctx); |
| 536 out_put("server.lua: ", "starting ssl handshake") | 537 out_put("server.lua: ", "starting ssl handshake") |
| 537 local err | 538 local err |
| 538 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket | 539 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket |
| 539 if err then | 540 if err then |
| 540 out_put( "server.lua: ssl error: ", tostring(err) ) | 541 out_put( "server.lua: ssl error: ", tostring(err) ) |
| 541 --mem_free( ) | 542 --mem_free( ) |
| 542 return nil, nil, err -- fatal error | 543 return nil, nil, err -- fatal error |
| 543 end | 544 end |
| 544 socket:settimeout( 0 ) | 545 socket:settimeout( 0 ) |
| 545 handler.readbuffer = handshake | 546 handler.readbuffer = handshake |
| 546 handler.sendbuffer = handshake | 547 handler.sendbuffer = handshake |
| 547 handshake( socket ) -- do handshake | 548 handshake( socket ) -- do handshake |
| 548 if not socket then | 549 if not socket then |
| 549 return nil, nil, "ssl handshake failed"; | 550 return nil, nil, "ssl handshake failed"; |
| 550 end | 551 end |
| 551 else | 552 else |
| 552 local sslctx; | 553 local sslctx; |
| 553 handler.starttls = function( self, _sslctx, now ) | 554 handler.starttls = function( self, _sslctx, now ) |
| 554 if _sslctx then | 555 if _sslctx then |
| 555 sslctx = _sslctx; | 556 sslctx = _sslctx; |
| 556 handler:set_sslctx(sslctx); | 557 handler:set_sslctx(sslctx); |
| 557 end | 558 end |
| 558 if not now then | 559 if not now then |
| 559 out_put "server.lua: we need to do tls, but delaying until later" | 560 out_put "server.lua: we need to do tls, but delaying until later" |
| 560 needtls = true | 561 needtls = true |
| 561 return | 562 return |
| 562 end | 563 end |
| 563 out_put( "server.lua: attempting to start tls on " .. tostring( socket ) ) | 564 out_put( "server.lua: attempting to start tls on " .. tostring( socket ) ) |
| 564 local oldsocket, err = socket | 565 local oldsocket, err = socket |
| 565 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket | 566 socket, err = ssl_wrap( socket, sslctx ) -- wrap socket |
| 566 --out_put( "server.lua: sslwrapped socket is " .. tostring( socket ) ) | 567 --out_put( "server.lua: sslwrapped socket is " .. tostring( socket ) ) |
| 567 if err then | 568 if err then |
| 568 out_put( "server.lua: error while starting tls on client: ", tostring(err) ) | 569 out_put( "server.lua: error while starting tls on client: ", tostring(err) ) |
| 569 return nil, err -- fatal error | 570 return nil, err -- fatal error |
| 570 end | 571 end |
| 571 | 572 |
| 572 socket:settimeout( 0 ) | 573 socket:settimeout( 0 ) |
| 573 | 574 |
| 574 -- add the new socket to our system | 575 -- add the new socket to our system |
| 575 | 576 |
| 576 send = socket.send | 577 send = socket.send |
| 577 receive = socket.receive | 578 receive = socket.receive |
| 578 shutdown = id | 579 shutdown = id |
| 579 | 580 |
| 580 _socketlist[ socket ] = handler | 581 _socketlist[ socket ] = handler |
| 581 _readlistlen = addsocket(_readlist, socket, _readlistlen) | 582 _readlistlen = addsocket(_readlist, socket, _readlistlen) |
| 582 | 583 |
| 583 -- remove traces of the old socket | 584 -- remove traces of the old socket |
| 584 | 585 |
| 585 _readlistlen = removesocket( _readlist, oldsocket, _readlistlen ) | 586 _readlistlen = removesocket( _readlist, oldsocket, _readlistlen ) |
| 586 _sendlistlen = removesocket( _sendlist, oldsocket, _sendlistlen ) | 587 _sendlistlen = removesocket( _sendlist, oldsocket, _sendlistlen ) |
| 587 _socketlist[ oldsocket ] = nil | 588 _socketlist[ oldsocket ] = nil |
| 588 | 589 |
| 589 handler.starttls = nil | 590 handler.starttls = nil |
| 590 needtls = nil | 591 needtls = nil |
| 591 | 592 |
| 592 -- Secure now | 593 -- Secure now |
| 593 ssl = true | 594 ssl = true |
| 594 | 595 |
| 595 handler.readbuffer = handshake | 596 handler.readbuffer = handshake |
| 596 handler.sendbuffer = handshake | 597 handler.sendbuffer = handshake |
| 597 handshake( socket ) -- do handshake | 598 handshake( socket ) -- do handshake |
| 598 end | 599 end |
| 599 handler.readbuffer = _readbuffer | 600 handler.readbuffer = _readbuffer |
| 600 handler.sendbuffer = _sendbuffer | 601 handler.sendbuffer = _sendbuffer |
| 601 end | 602 end |
| 602 | 603 |
| 603 send = socket.send | 604 send = socket.send |
| 604 receive = socket.receive | 605 receive = socket.receive |
| 605 shutdown = ( ssl and id ) or socket.shutdown | 606 shutdown = ( ssl and id ) or socket.shutdown |
| 606 | 607 |
| 607 _socketlist[ socket ] = handler | 608 _socketlist[ socket ] = handler |
| 608 _readlistlen = addsocket(_readlist, socket, _readlistlen) | 609 _readlistlen = addsocket(_readlist, socket, _readlistlen) |
| 609 | 610 |
| 610 return handler, socket | 611 return handler, socket |
| 611 end | 612 end |
| 612 | 613 |
| 613 id = function( ) | 614 id = function( ) |
| 614 end | 615 end |
| 615 | 616 |
| 616 idfalse = function( ) | 617 idfalse = function( ) |
| 617 return false | 618 return false |
| 618 end | 619 end |
| 619 | 620 |
| 620 addsocket = function( list, socket, len ) | 621 addsocket = function( list, socket, len ) |
| 621 if not list[ socket ] then | 622 if not list[ socket ] then |
| 622 len = len + 1 | 623 len = len + 1 |
| 623 list[ len ] = socket | 624 list[ len ] = socket |
| 624 list[ socket ] = len | 625 list[ socket ] = len |
| 625 end | 626 end |
| 626 return len; | 627 return len; |
| 627 end | 628 end |
| 628 | 629 |
| 629 removesocket = function( list, socket, len ) -- this function removes sockets from a list ( copied from copas ) | 630 removesocket = function( list, socket, len ) -- this function removes sockets from a list ( copied from copas ) |
| 630 local pos = list[ socket ] | 631 local pos = list[ socket ] |
| 631 if pos then | 632 if pos then |
| 632 list[ socket ] = nil | 633 list[ socket ] = nil |
| 633 local last = list[ len ] | 634 local last = list[ len ] |
| 634 list[ len ] = nil | 635 list[ len ] = nil |
| 635 if last ~= socket then | 636 if last ~= socket then |
| 636 list[ last ] = pos | 637 list[ last ] = pos |
| 637 list[ pos ] = last | 638 list[ pos ] = last |
| 638 end | 639 end |
| 639 return len - 1 | 640 return len - 1 |
| 640 end | 641 end |
| 641 return len | 642 return len |
| 642 end | 643 end |
| 643 | 644 |
| 644 closesocket = function( socket ) | 645 closesocket = function( socket ) |
| 645 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) | 646 _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) |
| 646 _readlistlen = removesocket( _readlist, socket, _readlistlen ) | 647 _readlistlen = removesocket( _readlist, socket, _readlistlen ) |
| 647 _socketlist[ socket ] = nil | 648 _socketlist[ socket ] = nil |
| 648 socket:close( ) | 649 socket:close( ) |
| 649 --mem_free( ) | 650 --mem_free( ) |
| 650 end | 651 end |
| 651 | 652 |
| 652 ----------------------------------// PUBLIC //-- | 653 ----------------------------------// PUBLIC //-- |
| 653 | 654 |
| 654 addserver = function( addr, port, listeners, pattern, sslctx ) -- this function provides a way for other scripts to reg a server | 655 addserver = function( addr, port, listeners, pattern, sslctx ) -- this function provides a way for other scripts to reg a server |
| 655 local err | 656 local err |
| 656 if type( listeners ) ~= "table" then | 657 if type( listeners ) ~= "table" then |
| 657 err = "invalid listener table" | 658 err = "invalid listener table" |
| 658 end | 659 end |
| 659 if not type( port ) == "number" or not ( port >= 0 and port <= 65535 ) then | 660 if not type( port ) == "number" or not ( port >= 0 and port <= 65535 ) then |
| 660 err = "invalid port" | 661 err = "invalid port" |
| 661 elseif _server[ port ] then | 662 elseif _server[ port ] then |
| 662 err = "listeners on port '" .. port .. "' already exist" | 663 err = "listeners on port '" .. port .. "' already exist" |
| 663 elseif sslctx and not luasec then | 664 elseif sslctx and not luasec then |
| 664 err = "luasec not found" | 665 err = "luasec not found" |
| 665 end | 666 end |
| 666 if err then | 667 if err then |
| 667 out_error( "server.lua, port ", port, ": ", err ) | 668 out_error( "server.lua, port ", port, ": ", err ) |
| 668 return nil, err | 669 return nil, err |
| 669 end | 670 end |
| 670 addr = addr or "*" | 671 addr = addr or "*" |
| 671 local server, err = socket_bind( addr, port ) | 672 local server, err = socket_bind( addr, port ) |
| 672 if err then | 673 if err then |
| 673 out_error( "server.lua, port ", port, ": ", err ) | 674 out_error( "server.lua, port ", port, ": ", err ) |
| 674 return nil, err | 675 return nil, err |
| 675 end | 676 end |
| 676 local handler, err = wrapserver( listeners, server, addr, port, pattern, sslctx, _maxclientsperserver ) -- wrap new server socket | 677 local handler, err = wrapserver( listeners, server, addr, port, pattern, sslctx, _maxclientsperserver ) -- wrap new server socket |
| 677 if not handler then | 678 if not handler then |
| 678 server:close( ) | 679 server:close( ) |
| 679 return nil, err | 680 return nil, err |
| 680 end | 681 end |
| 681 server:settimeout( 0 ) | 682 server:settimeout( 0 ) |
| 682 _readlistlen = addsocket(_readlist, server, _readlistlen) | 683 _readlistlen = addsocket(_readlist, server, _readlistlen) |
| 683 _server[ port ] = handler | 684 _server[ port ] = handler |
| 684 _socketlist[ server ] = handler | 685 _socketlist[ server ] = handler |
| 685 out_put( "server.lua: new "..(sslctx and "ssl " or "").."server listener on '", addr, ":", port, "'" ) | 686 out_put( "server.lua: new "..(sslctx and "ssl " or "").."server listener on '", addr, ":", port, "'" ) |
| 686 return handler | 687 return handler |
| 687 end | 688 end |
| 688 | 689 |
| 689 getserver = function ( port ) | 690 getserver = function ( port ) |
| 690 return _server[ port ]; | 691 return _server[ port ]; |
| 691 end | 692 end |
| 692 | 693 |
| 693 removeserver = function( port ) | 694 removeserver = function( port ) |
| 694 local handler = _server[ port ] | 695 local handler = _server[ port ] |
| 695 if not handler then | 696 if not handler then |
| 696 return nil, "no server found on port '" .. tostring( port ) .. "'" | 697 return nil, "no server found on port '" .. tostring( port ) .. "'" |
| 697 end | 698 end |
| 698 handler:close( ) | 699 handler:close( ) |
| 699 _server[ port ] = nil | 700 _server[ port ] = nil |
| 700 return true | 701 return true |
| 701 end | 702 end |
| 702 | 703 |
| 703 closeall = function( ) | 704 closeall = function( ) |
| 704 for _, handler in pairs( _socketlist ) do | 705 for _, handler in pairs( _socketlist ) do |
| 705 handler:close( ) | 706 handler:close( ) |
| 706 _socketlist[ _ ] = nil | 707 _socketlist[ _ ] = nil |
| 707 end | 708 end |
| 708 _readlistlen = 0 | 709 _readlistlen = 0 |
| 709 _sendlistlen = 0 | 710 _sendlistlen = 0 |
| 710 _timerlistlen = 0 | 711 _timerlistlen = 0 |
| 711 _server = { } | 712 _server = { } |
| 712 _readlist = { } | 713 _readlist = { } |
| 713 _sendlist = { } | 714 _sendlist = { } |
| 714 _timerlist = { } | 715 _timerlist = { } |
| 715 _socketlist = { } | 716 _socketlist = { } |
| 716 --mem_free( ) | 717 --mem_free( ) |
| 717 end | 718 end |
| 718 | 719 |
| 719 getsettings = function( ) | 720 getsettings = function( ) |
| 720 return _selecttimeout, _sleeptime, _maxsendlen, _maxreadlen, _checkinterval, _sendtimeout, _readtimeout, _cleanqueue, _maxclientsperserver, _maxsslhandshake | 721 return _selecttimeout, _sleeptime, _maxsendlen, _maxreadlen, _checkinterval, _sendtimeout, _readtimeout, _cleanqueue, _maxclientsperserver, _maxsslhandshake |
| 721 end | 722 end |
| 722 | 723 |
| 723 changesettings = function( new ) | 724 changesettings = function( new ) |
| 724 if type( new ) ~= "table" then | 725 if type( new ) ~= "table" then |
| 725 return nil, "invalid settings table" | 726 return nil, "invalid settings table" |
| 726 end | 727 end |
| 727 _selecttimeout = tonumber( new.timeout ) or _selecttimeout | 728 _selecttimeout = tonumber( new.timeout ) or _selecttimeout |
| 728 _sleeptime = tonumber( new.sleeptime ) or _sleeptime | 729 _sleeptime = tonumber( new.sleeptime ) or _sleeptime |
| 729 _maxsendlen = tonumber( new.maxsendlen ) or _maxsendlen | 730 _maxsendlen = tonumber( new.maxsendlen ) or _maxsendlen |
| 730 _maxreadlen = tonumber( new.maxreadlen ) or _maxreadlen | 731 _maxreadlen = tonumber( new.maxreadlen ) or _maxreadlen |
| 731 _checkinterval = tonumber( new.checkinterval ) or _checkinterval | 732 _checkinterval = tonumber( new.checkinterval ) or _checkinterval |
| 732 _sendtimeout = tonumber( new.sendtimeout ) or _sendtimeout | 733 _sendtimeout = tonumber( new.sendtimeout ) or _sendtimeout |
| 733 _readtimeout = tonumber( new.readtimeout ) or _readtimeout | 734 _readtimeout = tonumber( new.readtimeout ) or _readtimeout |
| 734 _cleanqueue = new.cleanqueue | 735 _cleanqueue = new.cleanqueue |
| 735 _maxclientsperserver = new._maxclientsperserver or _maxclientsperserver | 736 _maxclientsperserver = new._maxclientsperserver or _maxclientsperserver |
| 736 _maxsslhandshake = new._maxsslhandshake or _maxsslhandshake | 737 _maxsslhandshake = new._maxsslhandshake or _maxsslhandshake |
| 737 return true | 738 return true |
| 738 end | 739 end |
| 739 | 740 |
| 740 addtimer = function( listener ) | 741 addtimer = function( listener ) |
| 741 if type( listener ) ~= "function" then | 742 if type( listener ) ~= "function" then |
| 742 return nil, "invalid listener function" | 743 return nil, "invalid listener function" |
| 743 end | 744 end |
| 744 _timerlistlen = _timerlistlen + 1 | 745 _timerlistlen = _timerlistlen + 1 |
| 745 _timerlist[ _timerlistlen ] = listener | 746 _timerlist[ _timerlistlen ] = listener |
| 746 return true | 747 return true |
| 747 end | 748 end |
| 748 | 749 |
| 749 stats = function( ) | 750 stats = function( ) |
| 750 return _readtraffic, _sendtraffic, _readlistlen, _sendlistlen, _timerlistlen | 751 return _readtraffic, _sendtraffic, _readlistlen, _sendlistlen, _timerlistlen |
| 751 end | 752 end |
| 752 | 753 |
| 753 local dontstop = true; -- thinking about tomorrow, ... | 754 local dontstop = true; -- thinking about tomorrow, ... |
| 754 | 755 |
| 755 setquitting = function (quit) | 756 setquitting = function (quit) |
| 756 dontstop = not quit; | 757 dontstop = not quit; |
| 757 return; | 758 return; |
| 758 end | 759 end |
| 759 | 760 |
| 760 loop = function( ) -- this is the main loop of the program | 761 loop = function( ) -- this is the main loop of the program |
| 761 while dontstop do | 762 while dontstop do |
| 762 local read, write, err = socket_select( _readlist, _sendlist, _selecttimeout ) | 763 local read, write, err = socket_select( _readlist, _sendlist, _selecttimeout ) |
| 763 for i, socket in ipairs( write ) do -- send data waiting in writequeues | 764 for i, socket in ipairs( write ) do -- send data waiting in writequeues |
| 764 local handler = _socketlist[ socket ] | 765 local handler = _socketlist[ socket ] |
| 765 if handler then | 766 if handler then |
| 766 handler.sendbuffer( ) | 767 handler.sendbuffer( ) |
| 767 else | 768 else |
| 768 closesocket( socket ) | 769 closesocket( socket ) |
| 769 out_put "server.lua: found no handler and closed socket (writelist)" -- this should not happen | 770 out_put "server.lua: found no handler and closed socket (writelist)" -- this should not happen |
| 770 end | 771 end |
| 771 end | 772 end |
| 772 for i, socket in ipairs( read ) do -- receive data | 773 for i, socket in ipairs( read ) do -- receive data |
| 773 local handler = _socketlist[ socket ] | 774 local handler = _socketlist[ socket ] |
| 774 if handler then | 775 if handler then |
| 775 handler.readbuffer( ) | 776 handler.readbuffer( ) |
| 776 else | 777 else |
| 777 closesocket( socket ) | 778 closesocket( socket ) |
| 778 out_put "server.lua: found no handler and closed socket (readlist)" -- this can happen | 779 out_put "server.lua: found no handler and closed socket (readlist)" -- this can happen |
| 779 end | 780 end |
| 780 end | 781 end |
| 781 for handler, err in pairs( _closelist ) do | 782 for handler, err in pairs( _closelist ) do |
| 782 handler.disconnect( )( handler, err ) | 783 handler.disconnect( )( handler, err ) |
| 783 handler:close( true ) -- forced disconnect | 784 handler:close( true ) -- forced disconnect |
| 784 end | 785 end |
| 785 clean( _closelist ) | 786 clean( _closelist ) |
| 786 _currenttime = os_time( ) | 787 _currenttime = os_time( ) |
| 787 if os_difftime( _currenttime - _timer ) >= 1 then | 788 if os_difftime( _currenttime - _timer ) >= 1 then |
| 788 for i = 1, _timerlistlen do | 789 for i = 1, _timerlistlen do |
| 789 _timerlist[ i ]( _currenttime ) -- fire timers | 790 _timerlist[ i ]( _currenttime ) -- fire timers |
| 790 end | 791 end |
| 791 _timer = _currenttime | 792 _timer = _currenttime |
| 792 end | 793 end |
| 793 socket_sleep( _sleeptime ) -- wait some time | 794 socket_sleep( _sleeptime ) -- wait some time |
| 794 --collectgarbage( ) | 795 --collectgarbage( ) |
| 795 end | 796 end |
| 796 return "quitting" | 797 return "quitting" |
| 797 end | 798 end |
| 798 | 799 |
| 799 local function get_backend() | 800 local function get_backend() |
| 800 return "select"; | 801 return "select"; |
| 801 end | 802 end |
| 802 | 803 |
| 803 --// EXPERIMENTAL //-- | 804 --// EXPERIMENTAL //-- |
| 804 | 805 |
| 805 local wrapclient = function( socket, ip, serverport, listeners, pattern, sslctx ) | 806 local wrapclient = function( socket, ip, serverport, listeners, pattern, sslctx ) |
| 806 local handler = wrapconnection( nil, listeners, socket, ip, serverport, "clientport", pattern, sslctx ) | 807 local handler = wrapconnection( nil, listeners, socket, ip, serverport, "clientport", pattern, sslctx ) |
| 807 _socketlist[ socket ] = handler | 808 _socketlist[ socket ] = handler |
| 808 _sendlistlen = addsocket(_sendlist, socket, _sendlistlen) | 809 _sendlistlen = addsocket(_sendlist, socket, _sendlistlen) |
| 809 return handler, socket | 810 return handler, socket |
| 810 end | 811 end |
| 811 | 812 |
| 812 local addclient = function( address, port, listeners, pattern, sslctx ) | 813 local addclient = function( address, port, listeners, pattern, sslctx ) |
| 813 local client, err = luasocket.tcp( ) | 814 local client, err = luasocket.tcp( ) |
| 814 if err then | 815 if err then |
| 815 return nil, err | 816 return nil, err |
| 816 end | 817 end |
| 817 client:settimeout( 0 ) | 818 client:settimeout( 0 ) |
| 818 _, err = client:connect( address, port ) | 819 _, err = client:connect( address, port ) |
| 819 if err then -- try again | 820 if err then -- try again |
| 820 local handler = wrapclient( client, address, port, listeners ) | 821 local handler = wrapclient( client, address, port, listeners ) |
| 821 else | 822 else |
| 822 wrapconnection( nil, listeners, client, address, port, "clientport", pattern, sslctx ) | 823 wrapconnection( nil, listeners, client, address, port, "clientport", pattern, sslctx ) |
| 823 end | 824 end |
| 824 end | 825 end |
| 825 | 826 |
| 826 --// EXPERIMENTAL //-- | 827 --// EXPERIMENTAL //-- |
| 827 | 828 |
| 828 ----------------------------------// BEGIN //-- | 829 ----------------------------------// BEGIN //-- |
| 833 | 834 |
| 834 _timer = os_time( ) | 835 _timer = os_time( ) |
| 835 _starttime = os_time( ) | 836 _starttime = os_time( ) |
| 836 | 837 |
| 837 addtimer( function( ) | 838 addtimer( function( ) |
| 838 local difftime = os_difftime( _currenttime - _starttime ) | 839 local difftime = os_difftime( _currenttime - _starttime ) |
| 839 if difftime > _checkinterval then | 840 if difftime > _checkinterval then |
| 840 _starttime = _currenttime | 841 _starttime = _currenttime |
| 841 for handler, timestamp in pairs( _writetimes ) do | 842 for handler, timestamp in pairs( _writetimes ) do |
| 842 if os_difftime( _currenttime - timestamp ) > _sendtimeout then | 843 if os_difftime( _currenttime - timestamp ) > _sendtimeout then |
| 843 --_writetimes[ handler ] = nil | 844 --_writetimes[ handler ] = nil |
| 844 handler.disconnect( )( handler, "send timeout" ) | 845 handler.disconnect( )( handler, "send timeout" ) |
| 845 handler:close( true ) -- forced disconnect | 846 handler:close( true ) -- forced disconnect |
| 846 end | 847 end |
| 847 end | 848 end |
| 848 for handler, timestamp in pairs( _readtimes ) do | 849 for handler, timestamp in pairs( _readtimes ) do |
| 849 if os_difftime( _currenttime - timestamp ) > _readtimeout then | 850 if os_difftime( _currenttime - timestamp ) > _readtimeout then |
| 850 --_readtimes[ handler ] = nil | 851 --_readtimes[ handler ] = nil |
| 851 handler.disconnect( )( handler, "read timeout" ) | 852 handler.disconnect( )( handler, "read timeout" ) |
| 852 handler:close( ) -- forced disconnect? | 853 handler:close( ) -- forced disconnect? |
| 853 end | 854 end |
| 854 end | 855 end |
| 855 end | 856 end |
| 856 end | 857 end |
| 857 ) | 858 ) |
| 858 | 859 |
| 859 local function setlogger(new_logger) | 860 local function setlogger(new_logger) |
| 860 local old_logger = log; | 861 local old_logger = log; |
| 861 if new_logger then | 862 if new_logger then |
| 866 | 867 |
| 867 ----------------------------------// PUBLIC INTERFACE //-- | 868 ----------------------------------// PUBLIC INTERFACE //-- |
| 868 | 869 |
| 869 return { | 870 return { |
| 870 | 871 |
| 871 addclient = addclient, | 872 addclient = addclient, |
| 872 wrapclient = wrapclient, | 873 wrapclient = wrapclient, |
| 873 | 874 |
| 874 loop = loop, | 875 loop = loop, |
| 875 stats = stats, | 876 stats = stats, |
| 876 closeall = closeall, | 877 closeall = closeall, |
| 877 addtimer = addtimer, | 878 addtimer = addtimer, |
| 878 addserver = addserver, | 879 addserver = addserver, |
| 879 getserver = getserver, | 880 getserver = getserver, |
| 880 setlogger = setlogger, | 881 setlogger = setlogger, |
| 881 getsettings = getsettings, | 882 getsettings = getsettings, |
| 882 setquitting = setquitting, | 883 setquitting = setquitting, |
| 883 removeserver = removeserver, | 884 removeserver = removeserver, |
| 884 get_backend = get_backend, | 885 get_backend = get_backend, |
| 885 changesettings = changesettings, | 886 changesettings = changesettings, |
| 886 } | 887 } |
