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telnetlib.cpython-312.pyc
CRh&[ d Z ddlZddlZddlZddlmZ ddlZ ej e d dgZ dZ dZ e dg Z e d g Z e d g Z e d g Z e d g Z e dg Z e d g Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z e dg Z! e dg Z" e dg Z# e d g Z$ e d g Z% e d g Z& e d g Z' e d g Z( e d!g Z) e d"g Z* e d#g Z+ e d$g Z, e d%g Z- e d&g Z. e d'g Z/ e d(g Z0 e d)g Z1 e d*g Z2 e d+g Z3 e d,g Z4 e d-g Z5 e dg Z6 e d.g Z7 e d/g Z8 e d0g Z9 e d1g Z: e d2g Z; e d3g Z< e d4g Z= e d5g Z> e d6g Z? e d7g Z@ e d8g ZA e d9g ZB e d:g ZC e d;g ZD e d<g ZE e d=g ZF e d>g ZG e d?g ZH e d@g ZI e dAg ZJ e dBg ZK e dCg ZL e dDg ZM e dEg ZN e dFg ZO e dGg ZP e dHg ZQ e dIg ZR e dJg ZS e dg ZT e dg ZU eVedK r ej ZXn ej ZX G dL d ZZdM Z[e dNk( r e[ yy)OaQ TELNET client class. Based on RFC 854: TELNET Protocol Specification, by J. Postel and J. Reynolds Example: >>> from telnetlib import Telnet >>> tn = Telnet('www.python.org', 79) # connect to finger port >>> tn.write(b'guido\r\n') >>> print(tn.read_all()) Login Name TTY Idle When Where guido Guido van Rossum pts/2 <Dec 2 11:10> snag.cnri.reston.. >>> Note that read_all() won't read until eof -- it just reads some data -- but it guarantees to read at least one byte unless EOF is hit. It is possible to pass a Telnet object to a selector in order to wait until more data is available. Note that in this case, read_eager() may return b'' even if there was data on the socket, because the protocol negotiation may have eaten the data. This is why EOFError is needed in some cases to distinguish between "no data" and "connection closed" (since the socket also appears ready for reading when it is closed). To do: - option negotiation - timeout should be intrinsic to the connection object instead of an option on one of the read calls only N) monotonic) )removeTelnet r r ! " # $ % & ' ( ) * + , - . / 0 1 PollSelectorc e Zd ZdZdZddej fdZdej fdZd Z d Z d Z d Z d Z d Zd Zd d Zd Zd Zd Zd Zd Zd Zd Zd Zd Zd Zd Zd Z d Z d Z d Z d d Z d Z!d Z"y)!r a Telnet interface class. An instance of this class represents a connection to a telnet server. The instance is initially not connected; the open() method must be used to establish a connection. Alternatively, the host name and optional port number can be passed to the constructor, too. Don't try to reopen an already connected instance. This class has many read_*() methods. Note that some of them raise EOFError when the end of the connection is read, because they can return an empty string for other reasons. See the individual doc strings. read_until(expected, [timeout]) Read until the expected string has been seen, or a timeout is hit (default is no timeout); may block. read_all() Read all data until EOF; may block. read_some() Read at least one byte or EOF; may block. read_very_eager() Read all data available already queued or on the socket, without blocking. read_eager() Read either data already queued or some data available on the socket, without blocking. read_lazy() Read all data in the raw queue (processing it first), without doing any socket I/O. read_very_lazy() Reads all data in the cooked queue, without doing any socket I/O. read_sb_data() Reads available data between SB ... SE sequence. Don't block. set_option_negotiation_callback(callback) Each time a telnet option is read on the input flow, this callback (if set) is called with the following parameters : callback(telnet socket, command, option) option will be chr(0) when there is no option. No other action is done afterwards by telnetlib. Nr c t | _ || _ || _ || _ d| _ d| _ d| _ d| _ d| _ d| _ d| _ d| _ d| _ || j ||| yy)zConstructor. When called without arguments, create an unconnected instance. With a hostname argument, it connects the instance; port number and timeout are optional. N r ) DEBUGLEVEL debuglevelhostporttimeoutsockrawqirawqcookedqeofiacseqsbsbdataqoption_callbackopenselfrP rQ rR s /usr/lib/python3.12/telnetlib.py__init__zTelnet.__init__ s{ % # IIdD' * rM c d| _ |st }|| _ || _ || _ t j d| || t j ||f| | _ y)zConnect to a host. The optional second argument is the port number, which defaults to the standard telnet port (23). Don't try to reopen an already connected instance. r ztelnetlib.Telnet.openN) rW TELNET_PORTrP rQ rR sysauditsocketcreate_connectionrS r] s r_ r\ z Telnet.open sS D )4t<,,dD\7C rM c $ | j y)z#Destructor -- close the connection.Ncloser^ s r_ __del__zTelnet.__del__ s rM c | j dkD rEt d| j d| j dd |rt ||z yt | yy)zPrint a debug message, when the debug level is > 0. If extra arguments are present, they are substituted in the message using the standard string formatting operator. r zTelnet(,z): )endN)rO printrP rQ )r^ msgargss r_ rq z Telnet.msg sB ??Q dii; EcDj!c rM c || _ y)zhSet the debug level. The higher it is, the more debug output you get (on sys.stdout). N)rO )r^ rO s r_ set_debuglevelzTelnet.set_debuglevel s %rM c z | j }d| _ d| _ d| _ d| _ |r|j yy)zClose the connection.NTrM r )rS rW rX rY ri )r^ rS s r_ ri z Telnet.close s8 yy JJL rM c | j S )z)Return the socket object used internally.)rS rj s r_ get_socketzTelnet.get_socket s yyrM c 6 | j j S )z9Return the fileno() of the socket object used internally.)rS filenorj s r_ ry z Telnet.fileno s yy !!rM c t |v r!|j t t t z }t j d| | | j d| | j j | y)zWrite a string to the socket, doubling any IAC characters. Can block if the connection is blocked. May raise OSError if the connection is closed. ztelnetlib.Telnet.writezsend %rN)IACreplacerc rd rq rS sendall)r^ buffers r_ writez Telnet.write sP &=^^CS1F *D&9 F# &!rM c P t | }| j | j j | }|dk\ r*||z }| j d| }| j |d | _ |S | t |z }t 5 }|j | t j | j s|j | rt dt | j |z }| j | j | j j || }|dk\ r3||z }| j d| }| j |d | _ |cddd S |t z }|dk rn | j sddd | j S # 1 sw Y | j S xY w)a Read until a given string is encountered or until timeout. When no match is found, return whatever is available instead, possibly the empty string. Raise EOFError if the connection is closed and no cooked data is available. r N)len process_rawqrV find_time_TelnetSelectorregister selectors EVENT_READrW selectmax fill_rawqread_very_lazy)r^ matchrR nibufdeadlineselectors r_ read_untilzTelnet.read_until* s~ J LL e $ 6!A,,r"C <<+DLJ w(H ( dI$8$8 9hh??7+As4<< 0 23ANN$%%' ))%3AAv aC "ll2A .'+||AB'7 " & & 0G { hh " ""$$# " ""$$s ?C F !F F%c | j | j s-| j | j | j s-| j }d| _ |S )z7Read all data until EOF; block until connection closed.rM )r rW r rV r^ r s r_ read_allzTelnet.read_allO sK (( NN (( ll rM c | j | j sE| j s9| j | j | j s | j s9| j }d| _ |S )zRead at least one byte of cooked data unless EOF is hit. Return b'' if EOF is hit. Block if no data is immediately available. rM )r rV rW r r s r_ read_somezTelnet.read_someY sY ,,txx NN ,,txx ll rM c | j | j sM| j r=| j | j | j s| j r=| j S )a Read everything that's possible without blocking in I/O (eager). Raise EOFError if connection closed and no cooked data available. Return b'' if no cooked data available otherwise. Don't block unless in the midst of an IAC sequence. )r rW sock_availr r rj s r_ read_very_eagerzTelnet.read_very_eagerh sY ((t 0 NN ((t 0 ""$$rM c $ | j | j se| j sY| j rI| j | j | j s | j s| j rI| j S )zRead readily available data. Raise EOFError if connection closed and no cooked data available. Return b'' if no cooked data available otherwise. Don't block unless in the midst of an IAC sequence. )r rV rW r r r rj s r_ read_eagerzTelnet.read_eagerv se ,,txxDOO4E NN ,,txxDOO4E ""$$rM c B | j | j S )a Process and return data that's already in the queues (lazy). Raise EOFError if connection closed and no data available. Return b'' if no cooked data available otherwise. Don't block unless in the midst of an IAC sequence. )r r rj s r_ read_lazyzTelnet.read_lazy s ""$$rM c v | j }d| _ |s#| j r| j s t d |S )zReturn any data available in the cooked queue (very lazy). Raise EOFError if connection closed and no data available. Return b'' if no cooked data available otherwise. Don't block. rM ztelnet connection closed)rV rW rT EOFErrorr s r_ r zTelnet.read_very_lazy s4 ll txx 56 6 rM c , | j }d| _ |S )a Return any data available in the SB ... SE queue. Return b'' if no SB ... SE available. Should only be called after seeing a SB or SE command. When a new SB command is found, old unread SB data will be discarded. Don't block. rM )rZ r s r_ read_sb_datazTelnet.read_sb_data s ll rM c || _ y)zIProvide a callback function called after each receipt of a telnet option.N)r[ )r^ callbacks r_ set_option_negotiation_callbackz&Telnet.set_option_negotiation_callback s ' rM c X ddg} | j r| j }| j sP|t k( r3|dk( r9|t k7 r || j |z || j < b| xj |z c_ nSt | j dk( r|t t t t fv r| xj |z c_ d| _ |t k( r!|| j |z || j < n|t k( rd| _ d| _ n,|t k( r#d| _ | j |d z | _ d|d< | j r#| j | j |t ni| j# dt% | z nJt | j dk( r1| j dd }d| _ |}|t t fv r| j# d|t k( xr dxs d t% | | j r | j | j || n| j j' t t z |z n|t t fv r~| j# d|t k( xr d xs d t% | | j r | j | j || n)| j j' t t z |z | j r| j* |d z | _ | j |d z | _ y # t( $ r d| _ d| _ Y Hw xY w) zTransfer from raw queue to cooked queue. Set self.eof when connection is closed. Don't block unless in the midst of an IAC sequence. rM r r zIAC %d not recognizedr z IAC %s %dDODONTWILLWONTN)rT rawq_getcharrX theNULLr{ rY r r r r r SBrZ SEr[ rS NOOPTrq ordr} r rV )r^ r ccmdopts r_ r zTelnet.process_rawq s Cj; ))%%'{{G| G| Cx'*477|a'7DGG q( %*RtT 22 q( "%DKCx'*477|a'7DGG 7&'DG+.DL "W&'DG+/<<#a&+@DL%(CF // ! 0 0Au E !HH%<s1v%E F%* ++a*C"%DKCr4j( 2I .$ 8&#c(D // 0 0C E II - -cDj3.> ? t , 4K 2F <fc#hH // 0 0C E II - -cDj3.> ?o ))v ||c!f, ||c!f, DKDG s KL L)(L)c 6 | j s"| j | j rt | j | j | j dz }| j dz | _ | j t | j k\ rd| _ d| _ |S )zGet next char from raw queue. Block if no data is immediately available. Raise EOFError when connection is closed. r rM r )rT r rW r rU r )r^ r s r_ r zTelnet.rawq_getchar ss yy NN xx IIdjjA .ZZ!^ ::TYY 'DIDJrM c | j t | j k\ rd| _ d| _ | j j d }| j d| | | _ | j |z | _ y)zFill raw queue from exactly one recv() system call. Block if no data is immediately available. Set self.eof when connection is closed. rM r 2 zrecv %rN)rU r rT rS recvrq rW r s r_ r zTelnet.fill_rawq s` ::TYY 'DIDJ iinnR C GIIO rM c t 5 }|j | t j t |j d cddd S # 1 sw Y yxY w)z-Test whether data is available on the socket.r N)r r r r boolr )r^ r s r_ r zTelnet.sock_avail s= ( dI$8$8 9*+ s :AAc : t j dk( r| j yt 5 }|j | t j |j t j t j |j D ] \ }}|j | u ra | j }|s(t j j |j d t j j! u|j t j u st j j# j% d }|s ddd y| j | # t $ r t d Y ddd yw xY w# 1 sw Y yxY w)z9Interaction function, emulates a very dumb telnet client.win32N(*** Connection closed by remote host ***ascii)rc platform mt_interactr r r r stdinr fileobjr r rp stdoutr decodeflushreadlineencode)r^ r keyeventstextlines r_ interactzTelnet.interact s6 <<7 " ( dI$8$8 9 cii)=)= >#+??#4KC{{d*##'??#4D JJ , ,T[[-A B JJ , , . 1 "yy 1 1 3 : :7 C # "% & 4( $5 ( # !"L M " # sC A4F$E.4F7A)F!0FF.FF FFFc ddl }|j | j d t j j }|sy| j |j d B)z$Multithreaded version of interact().r N r )_threadstart_new_threadlistenerrc r r r r )r^ r r s r_ r zTelnet.mt_interact6 sN 399%%'D JJt{{7+ , rM c | j }|r/t j j |j d n t j j a# t $ r t d Y yw xY w)z>Helper for mt_interact() -- this executes in the other thread.r Nr )r r rp rc r r r r )r^ datas r_ r zTelnet.listener@ sh ( W!56 " @A s A# #A:9A:c & d}|dd }t t | }|D ]/ }t || d r|sddl}|j || ||< 1 | t |z }t 5 }|j | t j | j s| j |D ]e }|| j | j }|s$|j } | j d| } | j | d | _ ||| fc cddd S |'|j | } t z }| s|dk rn | j! | j sddd | j# } | s| j rt$ dd| fS # 1 sw Y 2xY w)a Read until one from a list of a regular expressions matches. The first argument is a list of regular expressions, either compiled (re.Pattern instances) or uncompiled (strings). The optional second argument is a timeout, in seconds; default is no timeout. Return a tuple of three items: the index in the list of the first regular expression that matches; the re.Match object returned; and the text read up till and including the match. If EOF is read and no text was read, raise EOFError. Otherwise, when nothing matches, return (-1, None, text) where text is the text received so far (may be the empty string if a timeout happened). If a regular expression ends with a greedy match (e.g. '.*') or if more than one expression can match the same input, the results are undeterministic, and may depend on the I/O timing. Nsearchr )ranger hasattrrecompiler r r r r rW r r rV ro r r r r ) r^ listrR r indicesr r r mer readys r_ expectz Telnet.expectM sz , AwD "A47H-9 **T!W-Q w(H ( dI$8$8 9hh!!# A Qt||4A EEG #||BQ /'+||AB'7 !1d|+ ! & $OOG 4E & 0G "Q; ! $ # hh ( ""$ND$ / s )A"F 9FAFFc | S Nr rj s r_ __enter__zTelnet.__enter__ s rM c $ | j y r rh )r^ typevalue tracebacks r_ __exit__zTelnet.__exit__ s rM r )#__name__ __module__ __qualname____doc__rS re _GLOBAL_DEFAULT_TIMEOUTr` r\ rk rq rt ri rw ry r r r r r r r r r r r r r r r r r r r r r rM r_ r r s 3h D q 77+0 )G)G D" %" "#%J % % % (E-N$$", )4- #6 prM c d} t j dd rVt j d dk( r@| dz } t j d= t j dd rt j d dk( r@d}t j dd rt j d }d}t j dd r t j d } t | }t 5 }|j | |j ||d |j ddd y# t $ r t j |d }Y jw xY w# 1 sw Y yxY w) zTest program for telnetlib. Usage: python telnetlib.py [-d] ... [host [port]] Default host is localhost; default port is 23. r r Nz-d localhostr tcpg ?)rR ) rc argvint ValueErrorre getservbynamer rt r\ r )rO rP rQ portstrtns r_ testr s J ((12,388A;$. \ HHQK ((12,388A;$. D xx|xx{ D xx|((1+ 8w<D R *% dC( 8''7D 8 s = D 6D6 D32D36D?__main__)\r rc re r timer r warnings _deprecatedr __all__rN rb bytesr{ r r r r r r NOPDMBRKIPAOAYTECELGAr BINARYECHORCPSGANAMSSTATUSTMRCTENAOLNAOPNAOCRDNAOHTSNAOHTDNAOFFDNAOVTSNAOVTDNAOLFDXASCIILOGOUTBMDETSUPDUP SUPDUPOUTPUTSNDLOCTTYPEEORTUIDOUTMRKTTYLOC VT3270REGIMEX3PADNAWSTSPEEDLFLOWLINEMODEXDISPLOC OLD_ENVIRONAUTHENTICATIONENCRYPT NEW_ENVIRONTN3270EXAUTHCHARSETRSPCOM_PORT_OPTIONSUPPRESS_LOCAL_ECHOTLSKERMITSEND_URL FORWARD_X PRAGMA_LOGON SSPI_LOGONPRAGMA_HEARTBEATEXOPLr r rJ r SelectSelectorr r r rM r_ <module>r? s F # Xg . * cU| cU| cU| cU| cU| * SEl SEl SEl SEl SEl SEl SEl SEl SEl SEl SEl s aSz QCj QCj aSz s A3Z aSz aSz aSz t t t t t t t t t B4[ RDk tbT{ t rd RDk bT{ t tbT{ rd bT{ t rd "; ";RDk t +RDk + rd + RDk+RDk RDk t "; 2$K cU| C5\ #< se qc 9n% ,,O ..Oy yx6 zF rM