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 lazy = require("./lazy.js");\r
  15 var security = require("./security.js");\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:info.token});\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(req.session.items.token != req.body.token)\r
  72         {\r
  73                 res.send(resource.invaild_token_message);\r
  74                 return;\r
  75         }\r
  76         if(typeof(req.body.erase) != "undefined")\r
  77         {\r
  78                 removeLog(req.body.file,function(){\r
  79                         res.redirect("/admin");\r
  80                 });\r
  81         }\r
  82         if(typeof(req.body.registor) != "undefined")\r
  83         {\r
  84                 ipbanlist.Update(req.body.newbanlist,function(){\r
  85                         res.redirect("/admin");\r
  86                 });\r
  87         }\r
  88         if(typeof(req.body.updateroom) != "undefined")\r
  89         {\r
  90                 $rooms.Update(req.body.newroomlist,function(){\r
  91                         res.redirect("/admin");\r
  92                 });\r
  93         }\r
  94 }\r
  95 \r
  96 function admin_proc(req,res)\r
  97 {\r
  98         var info = new security.SessionInfomation(true);\r
  99         req.session.items = info;\r
 100         var iplist = ipbanlist.GetText();\r
 101 \r
 102         fs.readdir($log_directory,function(err,list){\r
 103                 res.render("admin", {\r
 104                         files: list,\r
 105                         log_directory:$log_directory,\r
 106                         ipbanlist:iplist,\r
 107                         token:info.token,\r
 108                         roomlist:$rooms.GetString()\r
 109                 });\r
 110         });\r
 111 }\r
 112 \r
 113 function removeLog(files,callback)\r
 114 {\r
 115         if(typeof(files) == "undefined")\r
 116         {\r
 117                 if(typeof(callback) == "function")\r
 118                         callback();\r
 119                 return;\r
 120         }\r
 121 \r
 122         async.map(files,\r
 123         function(item,callback){\r
 124                 fs.unlink($log_directory + "/" + item,callback);\r
 125         },\r
 126         function(err,results){\r
 127                 if(typeof(callback) == "function")\r
 128                         callback();\r
 129         });\r
 130 }\r
 131 \r
 132 //RoomInfomationCollecionクラス\r
 133 function RoomInfomationCollection()\r
 134 {\r
 135         var MySQLPool = new require("./mysql_pool.js");\r
 136         var pool = new MySQLPool({\r
 137                                 host     : config.db_host,\r
 138                                 user     : config.db_user,\r
 139                                 password : config.db_password,\r
 140                                 port     : config.db_port,\r
 141                                 database : "webchat",\r
 142                         });\r
 143         var collection = {};\r
 144         this.Get = function(rno){\r
 145                 return collection[rno];\r
 146         }\r
 147         this.IsContains = function(rno){\r
 148                 return rno in collection;\r
 149         };\r
 150         this.GetString = function(){\r
 151                 var retval = "";\r
 152                 for(var rno in collection)\r
 153                 {\r
 154                         if($rooms.Get(rno).IsVolatile())\r
 155                                 continue;\r
 156                         var pass = collection[rno].password;\r
 157                         if(pass == null)\r
 158                                 pass = "";\r
 159                         var hiddenlog = collection[rno].hiddenlog;\r
 160                         retval += rno + ":" + pass + ":" + hiddenlog + "\r\n";\r
 161                 }\r
 162                 return retval;\r
 163         };\r
 164         this.GetKeys = function(){\r
 165                 var retval = {};\r
 166                 for(var rno in collection)\r
 167                 {\r
 168                         retval[rno] = {};\r
 169                 }\r
 170                 return retval;\r
 171         }\r
 172         this.Update = function(text,callfunc){\r
 173                 Clear();\r
 174                 async.waterfall([\r
 175                         function(next){\r
 176                                 pool.query("TRUNCATE TABLE rooms",null,next);\r
 177                         },\r
 178                         function(result,next){\r
 179                                 lines = text.split("\r\n");\r
 180                                 var items = new Array();\r
 181                                 for(var i = 0; i < lines.length; i++)\r
 182                                 {\r
 183                                         if(lines[i] == "")\r
 184                                                 continue;\r
 185                                         var token = lines[i].split(":");\r
 186                                         if(token.length == 1)\r
 187                                         {\r
 188                                                 Add(token[0],null,false);\r
 189                                                 items.push(new Array(token[0],null,false));\r
 190                                         }\r
 191                                         else if(token.length == 2)\r
 192                                         {\r
 193                                                 var rno = token[0];\r
 194                                                 var pass = token[1];\r
 195                                                 if(pass == "")\r
 196                                                         pass = null;\r
 197                                                 Add(rno, pass,false);\r
 198                                                 items.push(new Array(token[0],pass,false));\r
 199                                         }\r
 200                                         else if(token.length == 3)\r
 201                                         {\r
 202                                                 var rno = token[0];\r
 203                                                 var pass = token[1];\r
 204                                                 if(pass == "")\r
 205                                                         pass = null;\r
 206                                                 var hiddenlog = false;\r
 207                                                 if(token[2] == "true")\r
 208                                                         hiddenlog = true;\r
 209                                                 Add(rno, pass,hiddenlog);\r
 210                                                 items.push(new Array(token[0],pass,hiddenlog));\r
 211                                         }\r
 212                                 }\r
 213                                 pool.query("INSERT INTO rooms VALUES ?",[items],callfunc);\r
 214                         }\r
 215                 ],callfunc);\r
 216         }\r
 217         function GetRoomList(callback){\r
 218                 Clear();\r
 219                 async.waterfall([\r
 220                         function(next){\r
 221                                 pool.query("SELECT * FROM rooms",null,next);\r
 222                         },\r
 223                         function(result,next){\r
 224                                 for(var i = 0; i < result.length; i++)\r
 225                                 {\r
 226                                         //MySQLではTINYINTが使われている\r
 227                                         Add(result[i].number,result[i].password,result[i].hiddenlog != 0);\r
 228                                 }\r
 229                                 next(null,null);\r
 230                         }\r
 231                 ],callback);\r
 232         }\r
 233         function Clear(){\r
 234                 collection = {};\r
 235                 for(var i = 0; i < config.max_room_number; i++)\r
 236                         Add(i,null,null);\r
 237         };\r
 238         function Add(rno,pass,hiddenlogflag){\r
 239                 collection[rno] = new RoomInfomation(pass,hiddenlogflag);\r
 240                 if(pass != null)\r
 241                         collection[rno].owner = $system_name;\r
 242         };\r
 243         var $gc_interval_id = setInterval(function(){\r
 244                 for(var rno in this.rom_list)\r
 245                         collection[rno].GCRomList();\r
 246         },$gc_time_interval);\r
 247         GetRoomList();\r
 248 }\r
 249 \r
 250 //RoomInfomationクラス\r
 251 function RoomInfomation(pass,hiddenlogflag)\r
 252 {\r
 253         this.password = pass;\r
 254         this.rom_list = {};\r
 255         this.authed_list = {};\r
 256         this.owner = null;\r
 257         this.time = null;\r
 258         this.hiddenlog = hiddenlogflag;\r
 259         this.GetConfig = function(){\r
 260                 var roomconfig = {};\r
 261                 if(this.IsVolatile() == false)\r
 262                 {\r
 263                         if(this.IsFixedPassword())\r
 264                                 roomconfig.type = 2;\r
 265                         else if(this.IsHiddenLogFromRom())\r
 266                                 roomconfig.type = 3;\r
 267                         else\r
 268                                 roomconfig.type = 1;\r
 269                         roomconfig.IsOwned = !this.IsFirstAuth();\r
 270                 }else{\r
 271                         roomconfig.type = 0;\r
 272                 }\r
 273                 return roomconfig;\r
 274         }\r
 275         this.IsVolatile = function(){\r
 276                 return this.owner == null &&\r
 277                         this.password == null &&\r
 278                         this.time == null &&\r
 279                         this.hiddenlog == null;\r
 280         }\r
 281         this.GetRomCount = function(){\r
 282                 var count = 0;\r
 283                 for(var key in this.rom_list)\r
 284                         count++;\r
 285                 return count;\r
 286         };\r
 287         this.AddRom = function(ip){\r
 288                 var date = new Date();\r
 289                 this.rom_list[ip] = {time:date.getTime()};\r
 290         };\r
 291         this.RemoveRom = function(ip){\r
 292                 delete this.rom_list[ip];\r
 293         };\r
 294         this.Reset = function(owner){\r
 295                 var date = new Date();\r
 296                 var time = date.getTime();\r
 297                 this.password = null;\r
 298                 this.authed_list = {};\r
 299                 this.owner = owner;\r
 300                 this.time = time;\r
 301         };\r
 302         this.IsFirstAuth = function(){\r
 303                 return this.owner == null;\r
 304         };\r
 305         this.IsAuthed = function(name){\r
 306                 return name == this.owner ||\r
 307                         name in this.authed_list;\r
 308         };\r
 309         this.IsHiddenLogFromRom = function(){\r
 310                 return this.hiddenlog;\r
 311         };\r
 312         this.IsFixedPassword = function(){\r
 313                 return this.owner == $system_name;\r
 314         };\r
 315         this.IsOwner = function(name){\r
 316                 return this.owner == name;\r
 317         };\r
 318         this.IsTimeout = function(){\r
 319                 var date = new Date();\r
 320                 var current_time = date.getTime();\r
 321                 return !this.IsFixedPassword() &&\r
 322                         current_time - this.time >= $reset_password_diff;\r
 323         };\r
 324         this.RemoveAuth = function(name)\r
 325         {\r
 326                 delete this.authed_list[name];\r
 327         };\r
 328         this.Auth = function(name,password){\r
 329                 if(this.password != password)\r
 330                         return false;\r
 331                 var date = new Date();\r
 332                 var time = date.getTime();\r
 333                 this.time = time;\r
 334                 this.authed_list[name] = "";\r
 335                 return true;\r
 336         };\r
 337         this.SetPassword = function(owner,password){\r
 338                 if(owner == this.owner &&\r
 339                         !this.IsFixedPassword() &&\r
 340                         !this.IsHiddenLogFromRom())\r
 341                 {\r
 342                         var date = new Date();\r
 343                         this.time = date.getTime();\r
 344                         this.password = password;\r
 345                         return true;\r
 346                 }\r
 347                 return false;\r
 348         };\r
 349         this.GCRomList = function(){\r
 350                 var date = new Date();\r
 351                 var current_time = date.getTime();\r
 352                 for(var ip in this.rom_list)\r
 353                 {\r
 354                         if(current_time - this.rom_list[ip].time >= $gc_time_interval)\r
 355                                 delete this.rom_list[ip];\r
 356                 }\r
 357         };\r
 358 }\r
 359 \r
 360 //IPBANクラス\r
 361 function IpBanCollecion()\r
 362 {\r
 363         var MySQLPool = new require("./mysql_pool.js");\r
 364         var pool = new MySQLPool({\r
 365                                 host     : config.db_host,\r
 366                                 user     : config.db_user,\r
 367                                 password : config.db_password,\r
 368                                 port     : config.db_port,\r
 369                                 database : "webchat",\r
 370                         });\r
 371         var collection = {};\r
 372         this.IsBaned = function(ip){\r
 373                 return collection[ip] == "r";\r
 374         }\r
 375         this.IsBlockedToWrite = function(ip){\r
 376                 return ip in collection;\r
 377         }\r
 378         this.GetText = function(){\r
 379                 var text = "";\r
 380                 for(var key in collection)\r
 381                 {\r
 382                         if(collection[key] == "")\r
 383                                 text += key + "\r\n";\r
 384                         else\r
 385                                 text += key + ":" + collection[key] + "\r\n";\r
 386                 }\r
 387                 return text;\r
 388         }\r
 389         this.Update = function(text,callfunc){\r
 390                 collection = {};\r
 391                 async.waterfall([\r
 392                         function(next){\r
 393                                 pool.query("TRUNCATE TABLE ipbanlist",null,next);\r
 394                         },\r
 395                         function(result,next){\r
 396                                 var items = new Array();\r
 397                                 lines = text.split("\r\n");\r
 398                                 for(var i = 0; i < lines.length; i++)\r
 399                                 {\r
 400                                         var token = lines[i].split(":");\r
 401                                         var ip = token[0];\r
 402                                         if(ip == "")\r
 403                                                 continue;\r
 404                                         if(token.length == 1)\r
 405                                                 collection[ip] = "";\r
 406                                         else\r
 407                                                 collection[ip] = token[1];\r
 408                                         items.push(new Array(ip,collection[ip]));\r
 409                                 }\r
 410                                 pool.query("INSERT INTO ipbanlist VALUES ?",[items],next);\r
 411                         },\r
 412                 ],callfunc);\r
 413         }\r
 414         function GetIpBanList(callfunc)\r
 415         {\r
 416                 async.waterfall([\r
 417                         function(next){\r
 418                                 pool.query("SELECT * FROM ipbanlist",null,next);\r
 419                         },\r
 420                         function(result,next){\r
 421                                 for(var i = 0; i < result.length; i++)\r
 422                                         collection[result[i].ip] = result[i].type;\r
 423                                 next(null,null);\r
 424                         },\r
 425                 ],callfunc);\r
 426         }\r
 427         GetIpBanList();\r
 428 }\r
 429 \r
 430 var ipbanlist = new IpBanCollecion();\r
 431 var $rooms = new RoomInfomationCollection();\r
 432 \r
 433 createLogDirectory();\r
 434 \r
 435 function createLogDirectory()\r
 436 {\r
 437         fs.exists($log_directory,function(exists){\r
 438                 if(exists == false)\r
 439                         fs.mkdirSync($log_directory);\r
 440         });\r
 441 }\r
 442 \r
 443 function ParseConnect(socket)\r
 444 {\r
 445         var ip = GetClientIPAdress(socket);\r
 446         console.log("connected from %s",ip);\r
 447 \r
 448         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 449 \r
 450         var room = $rooms.Get(rno);\r
 451 \r
 452         room.AddRom(ip);\r
 453 \r
 454         var roomconfig = room.GetConfig();\r
 455         socket.json.emit("send roominfo",roomconfig);\r
 456 \r
 457         var romcount = room.GetRomCount();\r
 458         socket.json.emit("send romcount",romcount);\r
 459         socket.json.broadcast.emit("send romcount",romcount);\r
 460 \r
 461         socket.on("get pastLogList", function (msg) {\r
 462                 ParseGetPastLogList(socket,msg);\r
 463         });\r
 464         socket.on("get pastLog", function (msg) {\r
 465                 ParseGetPastLog(socket,msg);\r
 466         });\r
 467         socket.on("join",function(msg){\r
 468                 ParseJoin(socket,msg);\r
 469         });\r
 470         socket.on("quit",function(msg){\r
 471                 ParseQuit(socket,msg);\r
 472         });\r
 473         socket.on("set password",function(msg){\r
 474                 ParseSetPassword(socket,msg);\r
 475         });\r
 476         socket.on("send msg", function (msg) {\r
 477                 ParseSendMsg(socket,msg);\r
 478         });\r
 479         socket.on("disconnect", function (msg) {\r
 480                 ParseDisconnect(socket,msg);\r
 481         });\r
 482 }\r
 483 \r
 484 function ParseAuthorization(handshakeData, callback)\r
 485 {\r
 486         if(handshakeData.headers.cookie) {\r
 487                 var signedCookie = cookie.parse(handshakeData.headers.cookie);\r
 488                 var sessionID = connectUtils.parseSignedCookies(signedCookie, $secret)["connect.sid"];\r
 489                 sessionStore.get(sessionID, function (err, session) {\r
 490                         var result = null;\r
 491                         if (ipbanlist.IsBaned(handshakeData.address.address))\r
 492                                 result = "failed get from session store";\r
 493                         else if(err)\r
 494                                 result = err;\r
 495                         else if(handshakeData.query.token != session.items.token)\r
 496                                 result = "invaild token";\r
 497                         if(typeof(session) != "undefined" && result == null)\r
 498                                 handshakeData.sessionID = sessionID;\r
 499                         callback(result,result == null && !err);\r
 500                 });\r
 501         } else {\r
 502                 return callback("failed get cookie", false);\r
 503         }\r
 504 }\r
 505 \r
 506 function ParseDisconnect(socket,msg)\r
 507 {\r
 508         var ip = GetClientIPAdress(socket);\r
 509         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 510         $rooms.Get(rno).RemoveRom(ip);\r
 511 \r
 512         var romcount = $rooms.Get(rno).GetRomCount();\r
 513         socket.json.emit("send romcount",romcount);\r
 514         socket.json.broadcast.emit("send romcount",romcount);\r
 515 \r
 516         console.log("disconnected");\r
 517 }\r
 518 \r
 519 function ParseSetPassword(socket,msg)\r
 520 {\r
 521         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 522         var newMeg = {\r
 523                 name:$system_name,\r
 524                 message:null,\r
 525         };\r
 526         if($rooms.Get(rno).IsVolatile() == false && $rooms.Get(rno).SetPassword(msg.owner,msg.password))\r
 527                 newMeg.message = resource.password_setted_message;\r
 528         else\r
 529                 newMeg.message = resource.failed_set_password_message;\r
 530         ParseSendMsg(socket,newMeg);\r
 531 }\r
 532 \r
 533 function ParseJoin(socket,msg)\r
 534 {\r
 535         var ip = GetClientIPAdress(socket);\r
 536 \r
 537         if(ipbanlist.IsBlockedToWrite(ip))\r
 538         {\r
 539                 socket.emit("error",resource.block_message);\r
 540                 return;\r
 541         }\r
 542 \r
 543         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 544 \r
 545         $rooms.Get(rno).RemoveRom(ip);\r
 546         \r
 547         var romcount = $rooms.Get(rno).GetRomCount();\r
 548         socket.json.emit("send romcount",romcount);\r
 549         socket.json.broadcast.emit("send romcount",romcount);\r
 550 \r
 551         if($rooms.Get(rno).IsVolatile() == false)\r
 552         {\r
 553                 if($rooms.Get(rno).IsTimeout() ||\r
 554                         $rooms.Get(rno).IsFirstAuth())\r
 555                 {\r
 556                         $rooms.Get(rno).Reset(msg.name);\r
 557                         ParseGetPastLog(socket,util.format($log_file_name,rno));\r
 558                 }\r
 559                 else if($rooms.Get(rno).Auth(msg.name,msg.password))\r
 560                 {\r
 561                         ParseGetPastLog(socket,util.format($log_file_name,rno));\r
 562                 }\r
 563                 else\r
 564                 {\r
 565                         socket.emit("error",resource.unmatch_password);\r
 566                         return;\r
 567                 }\r
 568         }\r
 569 \r
 570         var newMeg = {\r
 571                 name:$system_name,\r
 572                 message:util.format("/enteredby %s %s %s",msg.name,msg.color,msg.mailto),\r
 573         };\r
 574         ParseSendMsg(socket,newMeg);\r
 575 }\r
 576 \r
 577 function ParseQuit(socket,msg)\r
 578 {\r
 579         var ip = GetClientIPAdress(socket);\r
 580 \r
 581         if(ipbanlist.IsBlockedToWrite(ip))\r
 582         {\r
 583                 socket.emit("error",resource.block_message);\r
 584                 return;\r
 585         }\r
 586 \r
 587         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 588 \r
 589         var newMeg = {\r
 590                 name:$system_name,\r
 591                 message:resource.password_resetted_message,\r
 592         };\r
 593 \r
 594         $rooms.Get(rno).AddRom(ip);\r
 595 \r
 596         var romcount = $rooms.Get(rno).GetRomCount();\r
 597         socket.json.emit("send romcount",romcount);\r
 598         socket.json.broadcast.emit("send romcount",romcount);\r
 599 \r
 600         if($rooms.Get(rno).IsVolatile() == false)\r
 601         {\r
 602                 if($rooms.Get(rno).IsOwner(msg.name))\r
 603                 {\r
 604                         $rooms.Get(rno).Reset(null);\r
 605                         ParseSendMsg(socket,newMeg);\r
 606                 }\r
 607                 if(!$rooms.Get(rno).IsFirstAuth() &&\r
 608                         !$rooms.Get(rno).IsAuthed(msg.name))\r
 609                         return;\r
 610                 else\r
 611                         $rooms.Get(rno).RemoveAuth(msg.name);\r
 612         }\r
 613 \r
 614         newMeg.message = util.format("/quitedby %s",msg.name);\r
 615         ParseSendMsg(socket,newMeg);\r
 616 }\r
 617 \r
 618 //socket 接続中のソケット\r
 619 //msg msgクラス\r
 620 function ParseSendMsg(socket,msg)\r
 621 {\r
 622         var ip = GetClientIPAdress(socket);\r
 623 \r
 624         if(ip in ipbanlist)\r
 625         {\r
 626                 socket.emit("error",resource.block_message);\r
 627                 return;\r
 628         }\r
 629 \r
 630         var rno = GetRoomNumberFromName(socket.namespace.name);\r
 631 \r
 632         if(msg.name != $system_name && \r
 633                 $rooms.Get(rno).IsVolatile() == false &&\r
 634                 !$rooms.Get(rno).IsAuthed(msg.name) &&\r
 635                 !$rooms.Get(rno).IsOwner(rno,msg.name))\r
 636         {\r
 637                 return;\r
 638         }\r
 639 \r
 640         var date = new Date();\r
 641 \r
 642         var repacked_msg = CreateMessage(msg.name,date,msg.message);\r
 643 \r
 644         if(socket.handshake.admin)\r
 645                 repacked_msg.ip = ip;\r
 646 \r
 647         socket.json.emit("req msg", repacked_msg);\r
 648 \r
 649         socket.json.broadcast.emit("req msg", repacked_msg);\r
 650 \r
 651         var path = $log_directory + "/" + util.format($log_file_name,rno);\r
 652         var log = new ChatLog(path);\r
 653         log.Save(repacked_msg,ip,rno);\r
 654 }\r
 655 \r
 656 function GetNameFromRoomNumber(number)\r
 657 {\r
 658         return "/" + number;\r
 659 }\r
 660 \r
 661 function GetRoomNumberFromName(name)\r
 662 {\r
 663         if(name.charAt(0) == "/")\r
 664                 return parseInt(name.substr(1));\r
 665         throw "GetRoomNumberFromName error";\r
 666 }\r
 667 \r
 668 function ParseGetPastLogList(socket,msg)\r
 669 {\r
 670         var list = fs.readdir($log_directory,function(err,files){\r
 671                 var text = "";\r
 672                 var rno = GetRoomNumberFromName(socket.namespace.name);\r
 673                 var pattern = $pastlogfile_pattern.replace("%d",rno);\r
 674                 for(var i = 0; i < files.length; i++)\r
 675                 {\r
 676                         var logname = files[i];\r
 677                         if(logname.match(pattern))\r
 678                                 text += files[i] + "\n";\r
 679                 }\r
 680                 socket.emit("req pastloglist",text);\r
 681         });\r
 682 }\r
 683 \r
 684 function ParseGetPastLog(socket,file)\r
 685 {\r
 686         if(file == "")\r
 687                 return;\r
 688         var path = $log_directory + "/" + file;\r
 689         var log = new ChatLog(path);\r
 690         log.ToArray(config.showip,function(array){\r
 691                 socket.json.emit("req pastlog",array);\r
 692         });\r
 693 }\r
 694 \r
 695 function ChatLog(path)\r
 696 {\r
 697         this.ToArray = function(hasIp,callback)\r
 698         {\r
 699                 var state = fs.stat(path,function(err,state){\r
 700                         if(err)\r
 701                                 return;\r
 702                         var array = new Array();\r
 703                         var stream = fs.createReadStream(path);\r
 704                         new lazy(stream)\r
 705                                 .lines\r
 706                                 .forEach(function(line){\r
 707                                         var msg = CreateMessageFromText(line.toString());\r
 708                                         if(hasIp == false)\r
 709                                                 msg.ip = "";\r
 710                                         array.push(msg);\r
 711                                 })\r
 712                                 .join(function(){\r
 713                                         callback(array);\r
 714                                 });\r
 715                 });\r
 716         }\r
 717 \r
 718         this.Save = function(msg,ip,rno){\r
 719                 var text = GetTextFromMessage(msg,ip);\r
 720 \r
 721                 SplitLog(rno,function(){\r
 722                         WritePastLog(path,text);\r
 723                 });\r
 724         };\r
 725 \r
 726         function GetTextFromMessage(msg,ip)\r
 727         {\r
 728                 var text = msg.name + "<>" +\r
 729                                 msg.date + "<>" +\r
 730                                 ip + "<>" +\r
 731                                 msg.message +\r
 732                                 "\n";\r
 733                 return text;\r
 734         }\r
 735 \r
 736         function SplitLog(rno,callback)\r
 737         {\r
 738                 var state = fs.stat(path,function(err,state){\r
 739                         if(err && typeof(callback) == "function")\r
 740                         {\r
 741                                 callback();\r
 742                                 return;\r
 743                         }\r
 744                         if(state.size > $spilt_size)\r
 745                         {\r
 746                                 var date = new Date();\r
 747                                 var dateString = ""+date.getFullYear()+date.getMonth()+date.getDate()+date.getHours()+date.getMinutes()+date.getSeconds();\r
 748 \r
 749                                 var newpath = $log_directory + "/" +\r
 750                                         util.format($splited_log_file_name,rno,dateString);\r
 751                                 fs.rename(path,newpath,callback);\r
 752                         }else{\r
 753                                 if(typeof(callback) == "function")\r
 754                                         callback();\r
 755                         }\r
 756                 });\r
 757         }\r
 758 \r
 759         function WritePastLog(path,text)\r
 760         {\r
 761                 async.waterfall([\r
 762                         function(callback){\r
 763                                 fs.open(path,"a",callback);\r
 764                         },\r
 765                         function(fd,callback){\r
 766                                 var buf = new Buffer(text);\r
 767                                 fs.write(fd,buf,0,Buffer.byteLength(text),null,function(){\r
 768                                         callback(null,fd);\r
 769                                 });\r
 770                         },\r
 771                         function(fd){\r
 772                                 fs.close(fd);\r
 773                         }\r
 774                 ]);\r
 775         }\r
 776 }\r
 777 \r
 778 function GetClientIPAdress(socket)\r
 779 {\r
 780         return socket.handshake.headers["x-forwarded-for"] || socket.handshake.address.address;\r
 781 }\r
 782 \r
 783 // Message クラス\r
 784 function CreateMessage(name,date,message)\r
 785 {\r
 786         var result = {name:name,\r
 787                 date:date,\r
 788                 ip:"",\r
 789                 message:message};\r
 790         return result;\r
 791 }\r
 792 function CreateMessageFromText(text)\r
 793 {\r
 794         var data = text.split("<>");\r
 795         var msg = {name:data[0],\r
 796                 ip:data[2],\r
 797                 date:data[1],\r
 798                 message:data[3]};\r
 799         return msg;\r
 800 }\r