U e5dÖZã@sJdZddlZddlZddlZddlmZdgZdZdZ e dgƒZ e dgƒZ e dgƒZ e d gƒZe d gƒZe dgƒZe d gƒZe d gƒZe d gƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZe dgƒZ e dgƒZ!e dgƒZ"e dgƒZ#e dgƒZ$e dgƒZ%e dgƒZ&e d gƒZ'e d!gƒZ(e d"gƒZ)e d#gƒZ*e d$gƒZ+e d%gƒZ,e d&gƒZ-e d'gƒZ.e d(gƒZ/e d)gƒZ0e d*gƒZ1e d+gƒZ2e dgƒZ3e d,gƒZ4e d-gƒZ5e d.gƒZ6e d/gƒZ7e d0gƒZ8e d1gƒZ9e d2gƒZ:e d3gƒZ;e d4gƒZe d7gƒZ?e d8gƒZ@e d9gƒZAe d:gƒZBe d;gƒZCe dgƒZFe d?gƒZGe d@gƒZHe dAgƒZIe dBgƒZJe dCgƒZKe dDgƒZLe dEgƒZMe dFgƒZNe dGgƒZOe dHgƒZPe dgƒZQe dgƒZReSedIƒrejTZUnejVZUGdJd„dƒZWdKdL„ZXeYdMkrFeXƒdS)NaQTELNET 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 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 éN)Ú monotonicÚTelnetééÿéþéýéüéûéðéñéòéóéôéõéöé÷éøéùéúééééééééé é é é é éééééééééééééééééé é!é"é#é$é%é&é'é(é)é*é+é,é-é.é/é0é1éŠé‹éŒÚ PollSelectorc@seZdZdZddejfdd„Zdejfdd„Zdd „Zd d „Z d d „Z dd„Z dd„Z dd„Z dd„ZdraëTelnet 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. NrcCsht|_||_||_||_d|_d|_d|_d|_d|_ d|_ d|_ d|_ d|_ |dk rd| |||¡dS)zÇConstructor. When called without arguments, create an unconnected instance. With a hostname argument, it connects the instance; port number and timeout are optional. Nór)Ú DEBUGLEVELÚ debuglevelÚhostÚportÚtimeoutÚsockÚrawqÚirawqÚcookedqÚeofÚiacseqÚsbÚsbdataqÚoption_callbackÚopen©ÚselfrLrMrN©r[ú!/usr/lib64/python3.8/telnetlib.pyÚ__init__ÄszTelnet.__init__cCsFd|_|st}||_||_||_t d|||¡t ||f|¡|_ dS)zÊConnect 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. rztelnetlib.Telnet.openN) rSÚ TELNET_PORTrLrMrNÚsysÚauditÚsocketZcreate_connectionrOrYr[r[r\rXÜsz Telnet.opencCs | ¡dS)z#Destructor -- close the connection.N©Úclose©rZr[r[r\Ú__del__íszTelnet.__del__cGs@|jdkr 0. If extra arguments are present, they are substituted in the message using the standard string formatting operator. rzTelnet(%s,%s):ú )ÚendN)rKÚprintrLrM)rZÚmsgÚargsr[r[r\riñs  z Telnet.msgcCs ||_dS)zhSet the debug level. The higher it is, the more debug output you get (on sys.stdout). N)rK)rZrKr[r[r\Úset_debuglevelÿszTelnet.set_debuglevelcCs.|j}d|_d|_d|_d|_|r*| ¡dS)zClose the connection.NTrIr)rOrSrTrUrc)rZrOr[r[r\rcsz Telnet.closecCs|jS)z)Return the socket object used internally.)rOrdr[r[r\Ú get_socketszTelnet.get_socketcCs |j ¡S)z9Return the fileno() of the socket object used internally.)rOÚfilenordr[r[r\rmsz Telnet.filenocCsBt|kr| ttt¡}t d||¡| d|¡|j |¡dS)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)ÚIACÚreplacer_r`rirOÚsendall)rZÚbufferr[r[r\Úwrites  z Telnet.writec Cs*t|ƒ}| ¡|j |¡}|dkrN||}|jd|…}|j|d…|_|S|dk r`tƒ|}tƒ¶}| |tj¡|j s|  |¡røt dt|jƒ|ƒ}|  ¡| ¡|j ||¡}|dkrø||}|jd|…}|j|d…|_|W5QR£S|dk rv|tƒ}|dkrvqqvW5QRX|  ¡S)aRead 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. rN)ÚlenÚ process_rawqrRÚfindÚ_timeÚ_TelnetSelectorÚregisterÚ selectorsÚ EVENT_READrSÚselectÚmaxÚ fill_rawqÚread_very_lazy)rZÚmatchrNÚnÚiÚbufÚdeadlineÚselectorr[r[r\Ú read_until&s8    zTelnet.read_untilcCs0| ¡|js | ¡| ¡q|j}d|_|S)z7Read all data until EOF; block until connection closed.rI)rtrSr}rR©rZr‚r[r[r\Úread_allKs zTelnet.read_allcCs6| ¡|js&|js&| ¡| ¡q|j}d|_|S)z™Read at least one byte of cooked data unless EOF is hit. Return b'' if EOF is hit. Block if no data is immediately available. rI)rtrRrSr}r†r[r[r\Ú read_someUs  zTelnet.read_somecCs0| ¡|js(| ¡r(| ¡| ¡q| ¡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. )rtrSÚ sock_availr}r~rdr[r[r\Úread_very_eagerds  zTelnet.read_very_eagercCs6| ¡|js.|js.| ¡r.| ¡| ¡q| ¡S)zèRead 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. )rtrRrSr‰r}r~rdr[r[r\Ú read_eagerrs  zTelnet.read_eagercCs| ¡| ¡S)aProcess 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. )rtr~rdr[r[r\Ú read_lazy€szTelnet.read_lazycCs(|j}d|_|s$|jr$|js$tdƒ‚|S)zÐReturn 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. rIztelnet connection closed)rRrSrPÚEOFErrorr†r[r[r\r~‹s zTelnet.read_very_lazycCs|j}d|_|S)aReturn 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. rI)rVr†r[r[r\Ú read_sb_data˜szTelnet.read_sb_datacCs ||_dS)zIProvide a callback function called after each receipt of a telnet option.N)rW)rZÚcallbackr[r[r\Úset_option_negotiation_callback¤sz&Telnet.set_option_negotiation_callbackcCsRddg}z|jr| ¡}|jsf|tkr,q |dkr6q |tkrV||j|||j<q n|j|7_q t|jƒdkr$|ttt t fkr–|j|7_q d|_|tkrº||j|||j<nh|t krÐd|_d|_ n&|t kröd|_|j |d|_ d|d<|jr| |j|t¡n| dt|ƒ¡q t|jƒdkr |jdd…}d|_|}|ttfkrª| d|tkrndppd t|ƒ¡|jr”| |j||¡n|j tt |¡q |t t fkr | d|t krÌd pÎd t|ƒ¡|jrò| |j||¡q |j tt|¡q Wn"tk r,d|_d|_YnX|j|d|_|j |d|_ d S) z Transfer from raw queue to cooked queue. Set self.eof when connection is closed. Don't block unless in the midst of an IAC sequence. rIórrzIAC %d not recognizedrz IAC %s %dÚDOÚDONTÚWILLÚWONTN)rPÚ rawq_getcharrTÚtheNULLrnrUrsr’r“r”r•ÚSBrVÚSErWrOÚNOOPTriÚordrprrR)rZr‚ÚcÚcmdÚoptr[r[r\rt¨spÿ ÿzTelnet.process_rawqcCsZ|js| ¡|jrt‚|j|j|jd…}|jd|_|jt|jƒkrVd|_d|_|S)zŽGet next char from raw queue. Block if no data is immediately available. Raise EOFError when connection is closed. rrIr)rPr}rSrrQrs)rZrœr[r[r\r–ðs zTelnet.rawq_getcharcCsL|jt|jƒkrd|_d|_|j d¡}| d|¡| |_|j||_dS)z¢Fill raw queue from exactly one recv() system call. Block if no data is immediately available. Set self.eof when connection is closed. rIré2zrecv %rN)rQrsrPrOZrecvrirSr†r[r[r\r}s  zTelnet.fill_rawqc Cs:tƒ*}| |tj¡t| d¡ƒW5QR£SQRXdS)z-Test whether data is available on the socket.rN)rwrxryrzÚboolr{)rZr„r[r[r\r‰szTelnet.sock_availc Csütjdkr| ¡dStƒÖ}| |tj¡| tjtj¡| ¡D]¦\}}|j |kr°z |  ¡}Wn*t k rŒt dƒYW5QR£dSX|rêtj  | d¡¡tj  ¡qD|j tjkrDtj ¡ d¡}|sàW5QR£dS| |¡qDqHelper for mt_interact() -- this executes in the other thread.r¡Nr¢)r‹rrhr_r¦rrr§r¨)rZÚdatar[r[r\r±=s zTelnet.listenerc CsTd}|dd…}tt|ƒƒ}|D]0}t||dƒs |s>ddl}| ||¡||<q |dk rdtƒ|}tƒÀ}| |tj ¡|j s&|  ¡|D]X}||  |j ¡}|rŽ| ¡} |j d| …} |j | d…|_ ||| fW5QR£SqŽ|dk r| |¡} |tƒ}| s|dkrzq&nqz| ¡qzW5QRX| ¡} | sJ|j rJt‚dd| fS)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. NÚsearchréÿÿÿÿ)ÚrangersÚhasattrÚreÚcompilervrwrxryrzrSrtr³rRrgr{r}r~r) rZÚlistrNr·Úindicesrrƒr„ÚmÚer¬Zreadyr[r[r\ÚexpectJsB      z Telnet.expectcCs|S©Nr[rdr[r[r\Ú __enter__‚szTelnet.__enter__cCs | ¡dSr¾rb)rZÚtypeÚvalueÚ tracebackr[r[r\Ú__exit__…szTelnet.__exit__)N)N)"Ú__name__Ú __module__Ú __qualname__Ú__doc__raZ_GLOBAL_DEFAULT_TIMEOUTr]rXrerirkrcrlrmrrr…r‡rˆrŠr‹rŒr~rŽrrtr–r}r‰r®r¤r±r½r¿rÃr[r[r[r\rs>5ÿ   %    H  8c CsÐd}tjdd…r2tjddkr2|d}tjd=qd}tjdd…rNtjd}d}tjdd…r˜tjd}z t|ƒ}Wn tk r–t |d¡}YnXtƒ(}| |¡|j||dd |  ¡W5QRXdS) zŒTest program for telnetlib. Usage: python telnetlib.py [-d] ... [host [port]] Default host is localhost; default port is 23. rrNz-dZ localhostrZtcpgà?)rN) r_ÚargvÚintÚ ValueErrorraZ getservbynamerrkrXr®)rKrLrMZportstrZtnr[r[r\Útest‰s$     rËÚ__main__)ZrÇr_raryÚtimerrvÚ__all__rJr^Úbytesrnr“r’r•r”r—r™ZNOPZDMZBRKZIPZAOZAYTZECZELZGAr˜ZBINARYZECHOZRCPZSGAZNAMSZSTATUSZTMZRCTEZNAOLZNAOPZNAOCRDZNAOHTSZNAOHTDZNAOFFDZNAOVTSZNAOVTDZNAOLFDZXASCIIZLOGOUTZBMZDETZSUPDUPZ SUPDUPOUTPUTZSNDLOCZTTYPEZEORZTUIDZOUTMRKZTTYLOCZ VT3270REGIMEZX3PADZNAWSZTSPEEDZLFLOWZLINEMODEZXDISPLOCZ OLD_ENVIRONZAUTHENTICATIONZENCRYPTZ NEW_ENVIRONZTN3270EZXAUTHÚCHARSETZRSPZCOM_PORT_OPTIONZSUPPRESS_LOCAL_ECHOZTLSZKERMITZSEND_URLZ FORWARD_XZ PRAGMA_LOGONZ SSPI_LOGONZPRAGMA_HEARTBEATZEXOPLršr¶rHrwZSelectSelectorrrËrÄr[r[r[r\Ús´#