c# – 尝试编写IRC客户端,但很难找到有关代码和连接协议的良好资源

我看过RFC,但我仍然在苦苦挣扎.我在C#中编写了一个基本客户端,但是找不到正确连接的文档.

一旦我连接并传输NICK和USER信息,我就需要加入一个频道.如果我马上加入,没有任何反应 – 大概是因为它太快了.我必须推迟它,但我不知道我需要等待哪个命令才能知道它可以继续.

我得到的东西：

：irc.fish.net注意AUTH：查找你的主机名……

和

：irc.fish.net 001 FishBot：欢迎

以及代码002,003,005,251,252等的东西,但我找不到在线的任何地方,告诉我这些是什么.

所以我的基本2个问题是：你发送了什么JOIN作为回应,我在哪里可以找到上面的IRC代码对应的内容？ RFC文档没用！

解决方法

RFC文档肯定没用！你是正确的,你需要发送USER跟随NICK.您收到的通知是IRC服务器正在尝试通过名为IDENTD的协议连接回您的PC.这是一个相对简单的协议,但它的结果是它想知道连接到服务器的主机上的程序正在使用服务器具有的本地/远程端口.

有可能,您的防火墙正在阻止这种情况(您可能没有运行IDENTD服务器).这不是一个大问题,尽管一个成熟的IRC客户端将实现它.你可以找到更多的here.这更详细.实施起来相对简单.

大多数IRC服务器都会放弃,如果它无法连接到你,我已经忘记了它的确切副作用(它已经有一段时间了),但你想要注意的下一条消息是MOTD_START / MOTD / MOTD_END和ERR_NOMOTD.只有在收到当天消息的结尾或处理了ERR_NOMOTD(没有一个)之后,才能使用JOIN加入频道.

顺便提一下,这是一个很好的RegEx,用于匹配来自IRC服务器的输入：

^(?:[:@]([^\\s]+) )?([^\\s]+)(?: ((?:[^:\\s][^\\s]* ?)*))?(?: ?:(.*))?$

IRC RFC列出了所有可能的代码及其含义.我不确定你为什么认为它们毫无用处.你引用了哪些？

编辑

我查找了我的旧C代码以获取IRC,这样我可以更有帮助.连接后,它进入一个阶段(我已经标记)谈判：

谈判阶段：

>如果已为服务器指定了密码,请将其发送给PASS mypassword.
>发送USER命令.
>输入Negotiate Nickname Stage
>等待ERR_NOMOTD,END_OFMOTD.直到其中一个出现,你才“正式联系”.

谈判昵称阶段：

完全可能在连接期间,您要使用的昵称已被使用.因此,客户应该：

>发出NICK命令
>如果收到ERR_NICKINUSE响应,请再次发出.如果您没有更多的昵称可供使用,您可以救助或提示用户另一个昵称.

还有一些需要考虑的事情：

>查看我们的PING命令.当您闲置时,服务器将发送此信息.将此处理为高优先级,并使用服务器提供给您的数据返回PONG.如果不这样做将确保您断开连接,当您测试IRC客户端时,这可能是后端的痛苦.

奖金乐趣

这是我对IRC命令的枚举,你应该能够很容易地把它放到C#中：

// reply ids
    enum Reply
    {
        RplNone             = 0,// Initial
        RplWelcome          = 001,// :Welcome to the Internet Relay Network <nickname>
        RplYourHost         = 002,// :Your host is <server>,running version <ver>
        RplCreated          = 003,// :This server was created <datetime>
        RplMyInfo           = 004,// <server> <ver> <usermode> <chanmode>
        RplMap              = 005,// :map
        RplEndOfMap         = 007,// :End of /MAP
        RplMotdStart        = 375,// :- server Message of the Day
        RplMotd             = 372,// :- <info>
        RplMotdAlt          = 377,// :- <info>                                                                        (some)
        RplMotdAlt2         = 378,// :- <info>                                                                        (some)
        RplMotdEnd          = 376,// :End of /MOTD command.
        RplUModeIs          = 221,// <mode>

        // IsOn/UserHost
        RplUserHost         = 302,// :userhosts
        RplIsOn             = 303,// :nicknames

        // Away
        RplAway             = 301,// <nick> :away
        RplUnAway           = 305,// :You are no longer marked as being away
        RplNowAway          = 306,// :You have been marked as being away

        // WHOIS/WHOWAS
        RplWhoisHelper      = 310,// <nick> :looks very helpful                                                       DALNET
        RplWhoIsUser        = 311,// <nick> <username> <address> * :<info>
        RplWhoIsServer      = 312,// <nick> <server> :<info>
        RplWhoIsOperator    = 313,// <nick> :is an IRC Operator
        RplWhoIsIdle        = 317,// <nick> <seconds> <signon> :<info>
        RplEndOfWhois       = 318,// <request> :End of /WHOIS list.
        RplWhoIsChannels    = 319,// <nick> :<channels>
        RplWhoWasUser       = 314,// <nick> <username> <address> * :<info>
        RplEndOfWhoWas      = 369,// <request> :End of WHOWAS
        RplWhoReply         = 352,// <channel> <username> <address> <server> <nick> <flags> :<hops> <info>
        RplEndOfWho         = 315,// <request> :End of /WHO list.
        RplUserIPs          = 307,// :userips                                                                         UNDERNET
        RplUserIP           = 340,// <nick> :<nickname>=+<user>@<IP.address>                                          UNDERNET

        // List
        RplListStart        = 321,// Channel :Users Name
        RplList             = 322,// <channel> <users> :<topic>
        RplListEnd          = 323,// :End of /LIST
        RplLinks            = 364,// <server> <hub> :<hops> <info>
        RplEndOfLinks       = 365,// <mask> :End of /LINKS list.

        // Post-Channel Join
        RplUniqOpIs         = 325,RplChannelModeIs    = 324,// <channel> <mode>
        RplChannelUrl       = 328,// <channel> :url                                                                   DALNET
        RplChannelCreated   = 329,// <channel> <time>
        RplNoTopic          = 331,// <channel> :No topic is set.
        RplTopic            = 332,// <channel> :<topic>
        RplTopicSetBy       = 333,// <channel> <nickname> <time>
        RplNamReply         = 353,// = <channel> :<names>
        RplEndOfNames       = 366,// <channel> :End of /NAMES list.

        // Invitational
        RplInviting         = 341,// <nick> <channel>
        RplSummoning        = 342,// Channel Lists
        RplInviteList       = 346,// <channel> <invite> <nick> <time>                                                 IRCNET
        RplEndOfInviteList  = 357,// <channel> :End of Channel Invite List                                            IRCNET
        RplExceptList       = 348,// <channel> <exception> <nick> <time>                                              IRCNET
        RplEndOfExceptList  = 349,// <channel> :End of Channel Exception List                                         IRCNET
        RplBanList          = 367,// <channel> <ban> <nick> <time>
        RplEndOfBanList     = 368,// <channel> :End of Channel Ban List


        // server/misc
        RplVersion          = 351,// <version>.<debug> <server> :<info>
        RplInfo             = 371,// :<info>
        RplEndOfInfo        = 374,// :End of /INFO list.
        RplYoureOper        = 381,// :You are now an IRC Operator
        RplRehashing        = 382,// <file> :Rehashing
        RplYoureService     = 383,RplTime             = 391,// <server> :<time>
        RplUsersStart       = 392,RplUsers            = 393,RplEndOfUsers       = 394,RplNoUsers          = 395,RplServList         = 234,RplServListEnd      = 235,RplAdminMe          = 256,// :Administrative info about server
        RplAdminLoc1        = 257,// :<info>
        RplAdminLoc2        = 258,// :<info>
        RplAdminEMail       = 259,// :<info>
        RplTryAgain         = 263,// :Server load is temporarily too heavy. Please wait a while and try again.

        // tracing
        RplTraceLink        = 200,RplTraceConnecting  = 201,RplTraceHandshake   = 202,RplTraceUnknown     = 203,RplTraceOperator    = 204,RplTraceUser        = 205,RplTraceServer      = 206,RplTraceService     = 207,RplTraceNewType     = 208,RplTraceClass       = 209,RplTraceReconnect   = 210,RplTraceLog         = 261,RplTraceEnd         = 262,// stats
        RplStatsLinkInfo    = 211,// <connection> <sendq> <sentmsg> <sentbyte> <recdmsg> <recdbyte> :<open>
        RplStatsCommands    = 212,// <command> <uses> <bytes>
        RplStatsCLine       = 213,// C <address> * <server> <port> <class>
        RplStatsNLine       = 214,// N <address> * <server> <port> <class>
        RplStatsILine       = 215,// I <ipmask> * <hostmask> <port> <class>
        RplStatsKLine       = 216,// k <address> * <username> <details>
        RplStatsPLine       = 217,// P <port> <??> <??>
        RplStatsQLine       = 222,// <mask> :<comment>
        RplStatsELine       = 223,// E <hostmask> * <username> <??> <??>
        RplStatsDLine       = 224,// D <ipmask> * <username> <??> <??>
        RplStatsLLine       = 241,// L <address> * <server> <??> <??>
        RplStatsuLine       = 242,// :Server Up <num> days,<time>
        RplStatsoLine       = 243,// o <mask> <password> <user> <??> <class>
        RplStatsHLine       = 244,// H <address> * <server> <??> <??>
        RplStatsGLine       = 247,// G <address> <timestamp> :<reason>
        RplStatsULine       = 248,// U <host> * <??> <??> <??>
        RplStatsZLine       = 249,// :info
        RplStatsYLine       = 218,// Y <class> <ping> <freq> <maxconnect> <sendq>
        RplEndOfStats       = 219,// <char> :End of /STATS report
        RplStatsUptime      = 242,// GLINE
        RplGLineList        = 280,// <address> <timestamp> <reason>                                                   UNDERNET
        RplEndOfGLineList   = 281,// :End of G-line List                                                              UNDERNET

        // Silence
        RplSilenceList      = 271,// <nick> <mask>                                                                    UNDERNET/DALNET
        RplEndOfSilenceList = 272,// <nick> :End of Silence List                                                      UNDERNET/DALNET

        // LUser
        RplLUserClient      = 251,// :There are <user> users and <invis> invisible on <serv> servers
        RplLUserOp          = 252,// <num> :operator(s) online
        RplLUserUnknown     = 253,// <num> :unknown connection(s)
        RplLUserChannels    = 254,// <num> :channels formed
        RplLUserMe          = 255,// :I have <user> clients and <serv> servers
        RplLUserLocalUser   = 265,// :Current local users: <curr> Max: <max>
        RplLUserGlobalUser  = 266,// :Current global users: <curr> Max: <max>


        // Errors
        ErrNoSuchNick       = 401,// <nickname> :No such nick
        ErrNoSuchServer     = 402,// <server> :No such server
        ErrNoSuchChannel    = 403,// <channel> :No such channel
        ErrCannotSendToChan = 404,// <channel> :Cannot send to channel
        ErrTooManyChannels  = 405,// <channel> :You have joined too many channels
        ErrWasNoSuchNick    = 406,// <nickname> :There was no such nickname
        ErrTooManyTargets   = 407,// <target> :Duplicate recipients. No message delivered
        ErrNoColors         = 408,// <nickname> #<channel> :You cannot use colors on this channel. Not sent: <text>   DALNET
        ErrNoOrigin         = 409,// :No origin specified
        ErrNoRecipient      = 411,// :No recipient given (<command>)
        ErrNoTextToSend     = 412,// :No text to send
        ErrNoTopLevel       = 413,// <mask> :No toplevel domain specified
        ErrWildTopLevel     = 414,// <mask> :Wildcard in toplevel Domain
        ErrBadMask          = 415,ErrTooMuchInfo      = 416,// <command> :Too many lines in the output,restrict your query                     UNDERNET
        ErrUnknownCommand   = 421,// <command> :Unknown command
        ErrNoMotd           = 422,// :MOTD File is missing
        ErrNoAdminInfo      = 423,// <server> :No administrative info available
        ErrFileError        = 424,ErrNoNicknameGiven  = 431,// :No nickname given
        ErrErroneusNickname = 432,// <nickname> :Erroneus Nickname
        ErrNickNameInUse    = 433,// <nickname> :Nickname is already in use.
        ErrNickCollision    = 436,// <nickname> :Nickname collision KILL
        ErrUnAvailResource  = 437,// <channel> :Cannot change nickname while banned on channel
        ErrNickTooFast      = 438,// <nick> :Nick change too fast. Please wait <sec> seconds.                         (most)
        ErrTargetTooFast    = 439,// <target> :Target change too fast. Please wait <sec> seconds.                     DALNET/UNDERNET
        ErrUserNotInChannel = 441,// <nickname> <channel> :They aren't on that channel
        ErrNotOnChannel     = 442,// <channel> :You're not on that channel
        ErrUserOnChannel    = 443,// <nickname> <channel> :is already on channel
        ErrNoLogin          = 444,ErrSummonDisabled   = 445,// :SUMMON has been disabled
        ErrUsersDisabled    = 446,// :USERS has been disabled
        ErrNotRegistered    = 451,// <command> :Register first.
        ErrNeedMoreParams   = 461,// <command> :Not enough parameters
        ErrAlreadyRegistered= 462,// :You may not reregister
        ErrNoPermForHost    = 463,ErrPasswdMistmatch  = 464,ErrYoureBannedCreep = 465,ErrYouWillBeBanned  = 466,ErrKeySet           = 467,// <channel> :Channel key already set
        ErrServerCanChange  = 468,// <channel> :Only servers can change that mode                                     DALNET
        ErrChannelIsFull    = 471,// <channel> :Cannot join channel (+l)
        ErrUnknownMode      = 472,// <char> :is unknown mode char to me
        ErrInviteOnlyChan   = 473,// <channel> :Cannot join channel (+i)
        ErrBannedFromChan   = 474,// <channel> :Cannot join channel (+b)
        ErrBadChannelKey    = 475,// <channel> :Cannot join channel (+k)
        ErrBadChanMask      = 476,ErrNickNotRegistered= 477,// <channel> :You need a registered nick to join that channel.                      DALNET
        ErrBanListFull      = 478,// <channel> <ban> :Channel ban/ignore list is full
        ErrNoPrivileges     = 481,// :Permission Denied- You're not an IRC operator
        ErrChanOPrivsNeeded = 482,// <channel> :You're not channel operator
        ErrCantKillServer   = 483,// :You cant kill a server!
        ErrRestricted       = 484,// <nick> <channel> :Cannot kill,kick or deop channel service                      UNDERNET
        ErrUniqOPrivsNeeded = 485,// <channel> :Cannot join channel (reason)
        ErrNoOperHost       = 491,// :No O-lines for your host
        ErrUModeUnknownFlag = 501,// :Unknown MODE flag
        ErrUsersDontMatch   = 502,// :Cant change mode for other users
        ErrSilenceListFull  = 511                   // <mask> :Your silence list is full                                                UNDERNET/DALNET

    };  // eo enum Reply