chat.js

   1 $spilt_size = 1024 * 512;    //分割するサイズ\r
   2 $reset_password_diff = 1000 * 60 * 60;  //ルームパスワードをリセットする間隔\r
   3 $gc_time_interval = 1000 * 60 * 60;     //ゴミ掃除を行う間隔\r
   4 $ip_ban_list_file_name = "ipbanlist.txt";       //アクセスを禁止するIPが記録されているファイル\r
   5 $room_configure_file_name = "roomlist.txt";     //ルームの設定が記録されているファイル\r
   6 $system_name = "system";        //システム発言を表す名前\r
   7 $log_directory = "log"; //ログファイルを置くフォルダー\r
   8 $log_file_name = "logfile%d.txt";       //ログファイル名(%dはそのままにしておくこと)\r
   9 $splited_log_file_name = "logfile%d_%s.txt"     //分割後のファイル名(%dと%sはそのままにしておくこと)\r
  10 $pastlogfile_pattern = "logfile%d(_+.*)?\.txt"; //過去ログと判定する正規表現\r
  11 \r
  12 var resource = require("./resources.js");\r
  13 var config = require("./configure.js");\r
  14 var security = require("./security.js");\r
  15 var lazy = require("lazy");\r
  16 var fs = require("fs");\r
  17 var async = require("async");\r
  18 var path = require("path");\r
  19 var util = require("util");\r
  20 var cookie = require("express/node_modules/cookie");\r
  21 var connectUtils = require("express/node_modules/connect/lib/utils");\r
  22 \r
  23 var clients = new Array();\r
  24 \r
  25 var sessionStore;\r
  26 \r
  27 module.exports = function(app,server,express,session){\r
  28         sessionStore = session;\r
  29         app.get("/chat", chat_proc);\r
  30         app.all("/log/*",express.basicAuth(auth_proc));\r
  31         app.get("/log/*",log_proc);\r
  32         app.all("/admin",express.basicAuth(auth_proc));\r
  33         app.get("/admin", admin_proc);\r
  34         app.post("/admin",admin_postproc);\r
  35 \r
  36         var io = require("socket.io").listen(server);\r
  37         io.configure("production", function(){\r
  38                 io.enable("browser client minification");  // minified されたクライアントファイルを送信する\r
  39         io.enable("browser client etag");          // バージョンによって etag によるキャッシングを有効にする\r
  40         io.set("log level", 1);                    // ログレベルを設定(デフォルトより下げている)\r
  41         });\r
  42 \r
  43         for(var i = 0; i < config.max_room_number; i++)\r
  44         {\r
  45                 clients[i] =io\r
  46                 .of(GetNameFromRoomNumber(i))\r
  47                 .authorization(ParseAuthorization)\r
  48                 .on("connection",ParseConnect);\r
  49         }\r
  50 };\r
  51 \r
  52 function chat_proc(req, res){\r
  53         var info = new security.SessionInfomation(false);\r
  54         req.session.items = info;\r
  55 \r
  56         var room_number = 0;\r
  57         if(typeof(req.query.rno) != "undefined")\r
  58                 room_number = req.query.rno;\r
  59         res.render("chat",{rno:room_number,token:req.session._csrf});\r
  60 }\r
  61 \r
  62 function auth_proc(user, pass) {\r
  63         return user === config.username && pass === config.password;\r
  64 }\r
  65 \r
  66 function log_proc(req, res) {\r
  67         res.sendfile(__dirname + req.url);\r
  68 }\r
  69 \r
  70 function admin_postproc(req,res){\r
  71         if(typeof(req.body.erase) != "undefined")\r
  72         {\r
  73                 removeLog(req.body.file,function(){\r
  74                         res.redirect("/admin");\r
  75                 });\r
  76         }\r
  77         if(typeof(req.body.registor) != "undefined")\r
  78         {\r
  79                 ipbanlist.Update(req.body.newbanlist,function(){\r
  80                         res.redirect("/admin");\r
  81                 });\r
  82         }\r
  83         if(typeof(req.body.updateroom) != "undefined")\r
  84         {\r
  85                 $rooms.Update(req.body,function(){\r
  86                         res.redirect("/admin");\r
  87                 });\r
  88         }\r
  89 }\r
  90 \r
  91 function admin_proc(req,res)\r
  92 {\r
  93         var info = new security.SessionInfomation(true);\r
  94         req.session.items = info;\r
  95         var iplist = ipbanlist.GetText();\r
  96 \r
  97         fs.readdir($log_directory,function(err,list){\r
  98                 res.setHeader("X-FRAME-OPTIONS","DENY");\r
  99                 res.render("admin", {\r
 100                         files: list,\r
 101                         log_directory:$log_directory,\r
 102                         ipbanlist:iplist,\r
 103                         token:req.session._csrf,\r
 104                         roomlist:$rooms.GetMessage()\r
 105                 });\r
 106         });\r
 107 }\r
 108 \r
 109 function removeLog(files,callback)\r
 110 {\r
 111         if(typeof(files) == "undefined")\r
 112         {\r
 113                 if(typeof(callback) == "function")\r
 114                         callback();\r
 115                 return;\r
 116         }\r
 117 \r
 118         async.map(files,\r
 119         function(item,callback){\r
 120                 fs.unlink($log_directory + "/" + item,callback);\r
 121         },\r
 122         function(err,results){\r
 123                 if(typeof(callback) == "function")\r
 124                         callback();\r
 125         });\r
 126 }\r
 127 \r
 128 //RoomInfomationCollecionクラス\r
 129 function RoomInfomationCollection()\r
 130 {\r
 131         var MySQLPool = new require("./mysql_pool.js");\r
 132         var pool = new MySQLPool({\r
 133                                 host     : config.db_host,\r
 134                                 user     : config.db_user,\r
 135                                 password : config.db_password,\r
 136                                 port     : config.db_port,\r
 137                                 database : config.db_name,\r
 138                         });\r
 139         var collection = {};\r
 140         this.Get = function(rno){\r
 141                 return collection[rno];\r
 142         }\r
 143         this.IsContains = function(rno){\r
 144                 return rno in collection;\r
 145         };\r
 146         this.GetMessage = function(){\r
 147                 var retval = new Array();\r
 148                 for(var rno in collection)\r
 149                 {\r
 150                         item={};\r
 151                         item.applyflag = !$rooms.Get(rno).IsVolatile();\r
 152                         item.password = collection[rno].password;\r
 153                         if(item.password == null)\r
 154                                 item.password = "";\r
 155                         item.hiddenlog = collection[rno].hiddenlog;\r
 156                         retval.push(item);\r
 157                 }\r
 158                 return retval;\r
 159         };\r
 160         this.GetKeys = function(){\r
 161                 var retval = {};\r
 162                 for(var rno in collection)\r
 163                 {\r
 164                         retval[rno] = {};\r
 165                 }\r
 166                 return retval;\r
 167         }\r
 168         this.Update = function(data,callfunc){\r
 169                 Clear();\r
 170                 async.waterfall([\r
 171                         function(next){\r
 172                                 pool.query("TRUNCATE TABLE rooms",null,next);\r
 173                         },\r
 174                         function(result,next){\r
 175                                 console.log(util.inspect(data));\r
 176                                 var items = new Array();\r
 177                                 var config = data.config;\r
 178                                 for(var i = 0; i < config.length; i++)\r
 179                                 {\r
 180                                         var rno = Number(config[i].applyflag);\r
 181                                         if(isNaN(rno))\r
 182                                                 continue;\r
 183                                         var password,romonly;\r
 184                                         if(typeof(config[rno].password)=="undefined")\r
 185                                                 password = null;\r
 186                                         else if(config[rno].password == "")\r
 187                                                 password = null;\r
 188                                         else\r
 189                                                 password = config[rno].password;\r
 190                                         if(typeof(config[rno].hiddenlog)=="undefined")\r
 191                                                 romonly = false;\r
 192                                         else\r
 193                                                 romonly = config[rno].hiddenlog == "romonly";\r
 194 \r
 195                                         Add(rno,password,romonly);\r
 196                                         items.push(new Array(rno,password,romonly));\r
 197                                 }\r
 198                                 pool.query("INSERT INTO rooms VALUES ?",[items],callfunc);\r
 199                         }\r
 200                 ],callfunc);\r
 201         }\r
 202         function GetRoomList(callback){\r
 203                 Clear();\r
 204                 async.waterfall([\r
 205                         function(next){\r
 206                                 pool.query("SELECT * FROM rooms",null,next);\r
 207                         },\r
 208                         function(result,next){\r
 209                                 for(var i = 0; i < result.length; i++)\r
 210                                 {\r
 211                                         //MySQLではTINYINTが使われている\r
 212                                         Add(result[i].number,result[i].password,result[i].hiddenlog != 0);\r
 213                                 }\r
 214                                 next(null,null);\r
 215                         }\r
 216                 ],callback);\r
 217         }\r
 218         function Clear(){\r
 219                 collection = {};\r
 220                 for(var i = 0; i < config.max_room_number; i++)\r
 221                         Add(i,null,null);\r
 222         };\r
 223         function Add(rno,pass,hiddenlogflag){\r
 224                 collection[rno] = new RoomInfomation(pass,hiddenlogflag);\r
 225                 if(pass != null)\r
 226                         collection[rno].owner = $system_name;\r
 227         };\r
 228         var $gc_interval_id = setInterval(function(){\r
 229                 for(var rno in this.rom_list)\r
 230                         collection[rno].GCRomList();\r
 231         },$gc_time_interval);\r
 232         GetRoomList();\r
 233 }\r
 234 \r
 235 //RoomInfomationクラス\r
 236 function RoomInfomation(pass,hiddenlogflag)\r
 237 {\r
 238         this.password = pass;\r
 239         this.rom_list = {};\r
 240         this.authed_list = {};\r
 241         this.owner = null;\r
 242         this.time = null;\r
 243         this.hiddenlog = hiddenlogflag;\r
 244         this.GetConfig = function(){\r
 245                 var roomconfig = {};\r
 246                 if(this.IsVolatile() == false)\r
 247                 {\r
 248                         if(this.IsFixedPassword())\r
 249                                 roomconfig.type = 2;\r
 250                         else if(this.IsHiddenLogFromRom())\r
 251                                 roomconfig.type = 3;\r
 252                         else\r
 253                                 roomconfig.type = 1;\r
 254                         roomconfig.IsOwned = !this.IsFirstAuth();\r
 255                 }else{\r
 256                         roomconfig.type = 0;\r
 257                 }\r
 258                 return roomconfig;\r
 259         }\r
 260         this.IsVolatile = function(){\r
 261                 return this.owner == null &&\r
 262                         this.password == null &&\r
 263                         this.time == null &&\r
 264                         this.hiddenlog == null;\r
 265         }\r
 266         this.GetRomCount = function(){\r
 267                 var count = 0;\r
 268                 for(var key in this.rom_list)\r
 269                         count++;\r
 270                 return count;\r
 271         };\r
 272         this.AddRom = function(ip){\r
 273                 var date = new Date();\r
 274                 this.rom_list[ip] = {time:date.getTime()};\r
 275         };\r
 276         this.RemoveRom = function(ip){\r
 277                 delete this.rom_list[ip];\r
 278         };\r
 279         this.Reset = function(owner){\r
 280                 var date = new Date();\r
 281                 var time = date.getTime();\r
 282                 this.password = null;\r
 283                 this.authed_list = {};\r
 284                 this.owner = owner;\r
 285                 this.time = time;\r
 286         };\r
 287         this.IsFirstAuth = function(){\r
 288                 return this.owner == null;\r
 289         };\r
 290         this.IsAuthed = function(name){\r
 291                 return name == this.owner ||\r
 292                         name in this.authed_list;\r
 293         };\r
 294         this.IsHiddenLogFromRom = function(){\r
 295                 return this.hiddenlog;\r
 296         };\r
 297         this.IsFixedPassword = function(){\r
 298                 return this.owner == $system_name;\r
 299         };\r
 300         this.IsOwner = function(name){\r
 301                 return this.owner == name;\r
 302         };\r
 303         this.IsTimeout = function(){\r
 304                 var date = new Date();\r
 305                 var current_time = date.getTime();\r
 306                 return !this.IsFixedPassword() &&\r
 307                         current_time - this.time >= $reset_password_diff;\r
 308         };\r
 309         this.RemoveAuth = function(name)\r
 310         {\r
 311                 delete this.authed_list[name];\r
 312         };\r
 313         this.Auth = function(name,password){\r
 314                 if(this.password != password)\r
 315                         return false;\r
 316                 var date = new Date();\r
 317                 var time = date.getTime();\r
 318                 this.time = time;\r
 319                 this.authed_list[name] = "";\r
 320                 return true;\r
 321         };\r
 322         this.SetPassword = function(owner,password){\r
 323                 if(owner == this.owner &&\r
 324                         !this.IsFixedPassword() &&\r
 325                         !this.IsHiddenLogFromRom())\r
 326                 {\r
 327                         var date = new Date();\r
 328                         this.time = date.getTime();\r
 329                         this.password = password;\r
 330                         return true;\r
 331                 }\r
 332                 return false;\r
 333         };\r
 334         this.GCRomList = function(){\r
 335                 var date = new Date();\r
 336                 var current_time = date.getTime();\r
 337                 for(var ip in this.rom_list)\r
 338                 {\r
 339                         if(current_time - this.rom_list[ip].time >= $gc_time_interval)\r
 340                                 delete this.rom_list[ip];\r
 341                 }\r
 342         };\r
 343 }\r
 344 \r
 345 //IPBANクラス\r
 346 function IpBanCollecion()\r
 347 {\r
 348         var MySQLPool = new require("./mysql_pool.js");\r
 349         var pool = new MySQLPool({\r
 350                                 host     : config.db_host,\r
 351                                 user     : config.db_user,\r
 352                                 password : config.db_password,\r
 353                                 port     : config.db_port,\r
 354                                 database : config.db_name,\r
 355                         });\r
 356         var collection = {};\r
 357         this.IsBaned = function(ip){\r
 358                 return collection[ip] == "r";\r
 359         }\r
 360         this.IsBlockedToWrite = function(ip){\r
 361                 return ip in collection;\r
 362         }\r
 363         this.GetText = function(){\r
 364                 var text = "";\r
 365                 for(var key in collection)\r
 366                 {\r
 367                         if(collection[key] == "")\r
 368                                 text += key + "\r\n";\r
 369                         else\r
 370                                 text += key + ":" + collection[key] + "\r\n";\r
 371                 }\r
 372                 return text;\r
 373         }\r
 374         this.Update = function(text,callfunc){\r
 375                 collection = {};\r
 376                 async.waterfall([\r
 377                         function(next){\r
 378                                 pool.query("TRUNCATE TABLE ipbanlist",null,next);\r
 379                         },\r
 380                         function(result,next){\r
 381                                 var items = new Array();\r
 382                                 lines = text.split("\r\n");\r
 383                                 for(var i = 0; i < lines.length; i++)\r
 384                                 {\r
 385                                         var token = lines[i].split(":");\r
 386                                         var ip = token[0];\r
 387                                         if(ip == "")\r
 388                                                 continue;\r
 389                                         if(token.length == 1)\r
 390                                                 collection[ip] = "";\r
 391                                         else\r
 392                                                 collection[ip] = token[1];\r
 393                                         items.push(new Array(ip,collection[ip]));\r
 394                                 }\r
 395                                 pool.query("INSERT INTO ipbanlist VALUES ?",[items],next);\r
 396                         },\r
 397                 ],callfunc);\r
 398         }\r
 399         function GetIpBanList(callfunc)\r
 400         {\r
 401                 async.waterfall([\r
 402                         function(next){\r
 403                                 pool.query("SELECT * FROM ipbanlist",null,next);\r
 404                         },\r
 405                         function(result,next){\r
 406                                 for(var i = 0; i < result.length; i++)\r
 407                                         collection[result[i].ip] = result[i].type;\r
 408                                 next(null,null);\r
 409                         },\r
 410                 ],callfunc);\r
 411         }\r
 412         GetIpBanList();\r
 413 }\r
 414 \r
 415 var ipbanlist = new IpBanCollecion();\r
 416 var $rooms = new RoomInfomationCollection();\r
 417 \r
 418 createLogDirectory();\r
 419 \r
 420 function createLogDirectory()\r
 421 {\r
 422         fs.exists($log_directory,function(exists){\r
 423                 if(exists == false)\r
 424                         fs.mkdirSync($log_directory);\r
 425         });\r
 426 }\r
 427 \r
 428 function ParseConnect(socket)\r
 429 {\r
 430         var ip = GetClientIPAdress(socket);\r
 431         console.log("connected from %s",ip);\r
 432 \r
 433         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 434 \r
 435         var room = $rooms.Get(rno);\r
 436 \r
 437         room.AddRom(ip);\r
 438 \r
 439         var roomconfig = room.GetConfig();\r
 440         socket.json.emit("send roominfo",roomconfig);\r
 441 \r
 442         var romcount = room.GetRomCount();\r
 443         socket.json.emit("send romcount",romcount);\r
 444         socket.json.broadcast.emit("send romcount",romcount);\r
 445 \r
 446         socket.on("get pastLogList", function (msg) {\r
 447                 ParseGetPastLogList(socket,msg);\r
 448         });\r
 449         socket.on("get pastLog", function (msg) {\r
 450                 ParseGetPastLog(socket,msg);\r
 451         });\r
 452         socket.on("join",function(msg){\r
 453                 ParseJoin(socket,msg);\r
 454         });\r
 455         socket.on("quit",function(msg){\r
 456                 ParseQuit(socket,msg);\r
 457         });\r
 458         socket.on("set password",function(msg){\r
 459                 ParseSetPassword(socket,msg);\r
 460         });\r
 461         socket.on("send msg", function (msg) {\r
 462                 ParseSendMsg(socket,msg);\r
 463         });\r
 464         socket.on("disconnect", function (msg) {\r
 465                 ParseDisconnect(socket,msg);\r
 466         });\r
 467 }\r
 468 \r
 469 function ParseAuthorization(handshakeData, callback)\r
 470 {\r
 471         if(handshakeData.headers.cookie) {\r
 472                 var signedCookie = cookie.parse(handshakeData.headers.cookie);\r
 473                 var sessionID = connectUtils.parseSignedCookies(signedCookie, $secret)["connect.sid"];\r
 474                 sessionStore.get(sessionID, function (err, session) {\r
 475                         var result = null;\r
 476                         if (ipbanlist.IsBaned(handshakeData.address.address))\r
 477                                 result = "failed get from session store";\r
 478                         else if(err)\r
 479                                 result = err;\r
 480                         else if(handshakeData.query.token != session._csrf)\r
 481                                 result = "invaild token";\r
 482                         if(typeof(session) != "undefined" && result == null)\r
 483                                 handshakeData.sessionID = sessionID;\r
 484                         callback(result,result == null && !err);\r
 485                 });\r
 486         } else {\r
 487                 return callback("failed get cookie", false);\r
 488         }\r
 489 }\r
 490 \r
 491 function ParseDisconnect(socket,msg)\r
 492 {\r
 493         var ip = GetClientIPAdress(socket);\r
 494         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 495         $rooms.Get(rno).RemoveRom(ip);\r
 496 \r
 497         var romcount = $rooms.Get(rno).GetRomCount();\r
 498         socket.json.emit("send romcount",romcount);\r
 499         socket.json.broadcast.emit("send romcount",romcount);\r
 500 \r
 501         console.log("disconnected");\r
 502 }\r
 503 \r
 504 function ParseSetPassword(socket,msg)\r
 505 {\r
 506         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 507         var newMeg = {\r
 508                 name:$system_name,\r
 509                 message:null,\r
 510         };\r
 511         if($rooms.Get(rno).IsVolatile() == false && $rooms.Get(rno).SetPassword(msg.owner,msg.password))\r
 512                 newMeg.message = resource.password_setted_message;\r
 513         else\r
 514                 newMeg.message = resource.failed_set_password_message;\r
 515         ParseSendMsg(socket,newMeg);\r
 516 }\r
 517 \r
 518 function ParseJoin(socket,msg)\r
 519 {\r
 520         var ip = GetClientIPAdress(socket);\r
 521 \r
 522         if(ipbanlist.IsBlockedToWrite(ip))\r
 523         {\r
 524                 socket.emit("error",resource.block_message);\r
 525                 return;\r
 526         }\r
 527 \r
 528         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 529 \r
 530         $rooms.Get(rno).RemoveRom(ip);\r
 531         \r
 532         var romcount = $rooms.Get(rno).GetRomCount();\r
 533         socket.json.emit("send romcount",romcount);\r
 534         socket.json.broadcast.emit("send romcount",romcount);\r
 535 \r
 536         if($rooms.Get(rno).IsVolatile() == false)\r
 537         {\r
 538                 if($rooms.Get(rno).IsTimeout() ||\r
 539                         $rooms.Get(rno).IsFirstAuth())\r
 540                 {\r
 541                         $rooms.Get(rno).Reset(msg.name);\r
 542                         ParseGetPastLog(socket,util.format($log_file_name,rno));\r
 543                 }\r
 544                 else if($rooms.Get(rno).Auth(msg.name,msg.password))\r
 545                 {\r
 546                         ParseGetPastLog(socket,util.format($log_file_name,rno));\r
 547                 }\r
 548                 else\r
 549                 {\r
 550                         socket.emit("error",resource.unmatch_password);\r
 551                         return;\r
 552                 }\r
 553         }\r
 554 \r
 555         var newMeg = {\r
 556                 name:$system_name,\r
 557                 message:util.format("/enteredby %s %s %s",msg.name,msg.color,msg.mailto),\r
 558         };\r
 559         ParseSendMsg(socket,newMeg);\r
 560 }\r
 561 \r
 562 function ParseQuit(socket,msg)\r
 563 {\r
 564         var ip = GetClientIPAdress(socket);\r
 565 \r
 566         if(ipbanlist.IsBlockedToWrite(ip))\r
 567         {\r
 568                 socket.emit("error",resource.block_message);\r
 569                 return;\r
 570         }\r
 571 \r
 572         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 573 \r
 574         var newMeg = {\r
 575                 name:$system_name,\r
 576                 message:resource.password_resetted_message,\r
 577         };\r
 578 \r
 579         $rooms.Get(rno).AddRom(ip);\r
 580 \r
 581         var romcount = $rooms.Get(rno).GetRomCount();\r
 582         socket.json.emit("send romcount",romcount);\r
 583         socket.json.broadcast.emit("send romcount",romcount);\r
 584 \r
 585         if($rooms.Get(rno).IsVolatile() == false)\r
 586         {\r
 587                 if($rooms.Get(rno).IsOwner(msg.name))\r
 588                 {\r
 589                         $rooms.Get(rno).Reset(null);\r
 590                         ParseSendMsg(socket,newMeg);\r
 591                 }\r
 592                 if(!$rooms.Get(rno).IsFirstAuth() &&\r
 593                         !$rooms.Get(rno).IsAuthed(msg.name))\r
 594                         return;\r
 595                 else\r
 596                         $rooms.Get(rno).RemoveAuth(msg.name);\r
 597         }\r
 598 \r
 599         newMeg.message = util.format("/quitedby %s",msg.name);\r
 600         ParseSendMsg(socket,newMeg);\r
 601 }\r
 602 \r
 603 //socket 接続中のソケット\r
 604 //msg msgクラス\r
 605 function ParseSendMsg(socket,msg)\r
 606 {\r
 607         var ip = GetClientIPAdress(socket);\r
 608 \r
 609         if(ip in ipbanlist)\r
 610         {\r
 611                 socket.emit("error",resource.block_message);\r
 612                 return;\r
 613         }\r
 614 \r
 615         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 616 \r
 617         if(msg.name != $system_name && \r
 618                 $rooms.Get(rno).IsVolatile() == false &&\r
 619                 !$rooms.Get(rno).IsAuthed(msg.name) &&\r
 620                 !$rooms.Get(rno).IsOwner(rno,msg.name))\r
 621         {\r
 622                 return;\r
 623         }\r
 624 \r
 625         var date = new Date();\r
 626 \r
 627         var repacked_msg = CreateMessage(msg.name,date,msg.message);\r
 628 \r
 629         if(socket.handshake.admin)\r
 630                 repacked_msg.ip = ip;\r
 631 \r
 632         socket.json.emit("req msg", repacked_msg);\r
 633 \r
 634         socket.json.broadcast.emit("req msg", repacked_msg);\r
 635 \r
 636         var path = $log_directory + "/" + util.format($log_file_name,rno);\r
 637         var log = new ChatLog(path);\r
 638         log.Save(repacked_msg,ip,rno);\r
 639 }\r
 640 \r
 641 function GetNameFromRoomNumber(number)\r
 642 {\r
 643         return "/" + number;\r
 644 }\r
 645 \r
 646 function GetRoomNumberFromName(name)\r
 647 {\r
 648         if(name.charAt(0) == "/")\r
 649                 return parseInt(name.substr(1));\r
 650         throw "GetRoomNumberFromName error";\r
 651 }\r
 652 \r
 653 function ParseGetPastLogList(socket,msg)\r
 654 {\r
 655         var list = fs.readdir($log_directory,function(err,files){\r
 656                 var text = "";\r
 657                 var rno = GetRoomNumberFromName(socket.namespace.name);\r
 658                 var pattern = $pastlogfile_pattern.replace("%d",rno);\r
 659                 for(var i = 0; i < files.length; i++)\r
 660                 {\r
 661                         var logname = files[i];\r
 662                         if(logname.match(pattern))\r
 663                                 text += files[i] + "\n";\r
 664                 }\r
 665                 socket.emit("req pastloglist",text);\r
 666         });\r
 667 }\r
 668 \r
 669 function ParseGetPastLog(socket,file)\r
 670 {\r
 671         if(file == "")\r
 672                 return;\r
 673         var path = $log_directory + "/" + file;\r
 674         var log = new ChatLog(path);\r
 675         log.ToArray(config.showip,function(array){\r
 676                 socket.json.emit("req pastlog",array);\r
 677         });\r
 678 }\r
 679 \r
 680 function ChatLog(path)\r
 681 {\r
 682         this.ToArray = function(hasIp,callback)\r
 683         {\r
 684                 var state = fs.stat(path,function(err,state){\r
 685                         if(err)\r
 686                                 return;\r
 687                         var array = new Array();\r
 688                         var stream = fs.createReadStream(path);\r
 689                         new lazy(stream)\r
 690                                 .lines\r
 691                                 .forEach(function(line){\r
 692                                         var msg = CreateMessageFromText(line.toString());\r
 693                                         if(hasIp == false)\r
 694                                                 msg.ip = "";\r
 695                                         array.push(msg);\r
 696                                 })\r
 697                                 .join(function(){\r
 698                                         callback(array);\r
 699                                 });\r
 700                 });\r
 701         }\r
 702 \r
 703         this.Save = function(msg,ip,rno){\r
 704                 var text = GetTextFromMessage(msg,ip);\r
 705 \r
 706                 SplitLog(rno,function(){\r
 707                         WritePastLog(path,text);\r
 708                 });\r
 709         };\r
 710 \r
 711         function GetTextFromMessage(msg,ip)\r
 712         {\r
 713                 var text = msg.name + "<>" +\r
 714                                 msg.date + "<>" +\r
 715                                 ip + "<>" +\r
 716                                 msg.message +\r
 717                                 "\n";\r
 718                 return text;\r
 719         }\r
 720 \r
 721         function SplitLog(rno,callback)\r
 722         {\r
 723                 var state = fs.stat(path,function(err,state){\r
 724                         if(err && typeof(callback) == "function")\r
 725                         {\r
 726                                 callback();\r
 727                                 return;\r
 728                         }\r
 729                         if(state.size > $spilt_size)\r
 730                         {\r
 731                                 var date = new Date();\r
 732                                 var dateString = ""+date.getFullYear()+date.getMonth()+date.getDate()+date.getHours()+date.getMinutes()+date.getSeconds();\r
 733 \r
 734                                 var newpath = $log_directory + "/" +\r
 735                                         util.format($splited_log_file_name,rno,dateString);\r
 736                                 fs.rename(path,newpath,callback);\r
 737                         }else{\r
 738                                 if(typeof(callback) == "function")\r
 739                                         callback();\r
 740                         }\r
 741                 });\r
 742         }\r
 743 \r
 744         function WritePastLog(path,text)\r
 745         {\r
 746                 async.waterfall([\r
 747                         function(callback){\r
 748                                 fs.open(path,"a",callback);\r
 749                         },\r
 750                         function(fd,callback){\r
 751                                 var buf = new Buffer(text);\r
 752                                 fs.write(fd,buf,0,Buffer.byteLength(text),null,function(){\r
 753                                         callback(null,fd);\r
 754                                 });\r
 755                         },\r
 756                         function(fd){\r
 757                                 fs.close(fd);\r
 758                         }\r
 759                 ]);\r
 760         }\r
 761 }\r
 762 \r
 763 function GetClientIPAdress(socket)\r
 764 {\r
 765         return socket.handshake.headers["x-forwarded-for"] || socket.handshake.address.address;\r
 766 }\r
 767 \r
 768 // Message クラス\r
 769 function CreateMessage(name,date,message)\r
 770 {\r
 771         var result = {name:name,\r
 772                 date:date,\r
 773                 ip:"",\r
 774                 message:message};\r
 775         return result;\r
 776 }\r
 777 function CreateMessageFromText(text)\r
 778 {\r
 779         var data = text.split("<>");\r
 780         var msg = {name:data[0],\r
 781                 ip:data[2],\r
 782                 date:data[1],\r
 783                 message:data[3]};\r
 784         return msg;\r
 785 }\r