cpython-lru_cache-weakref: Lib/telnetlib.py annotate

annotate Lib/telnetlib.py @ 80661:94de77bd0b4b 2.7

Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.

author	Andrew Svetlov <andrew.svetlov@gmail.com>
date	Thu, 29 Nov 2012 19:51:28 +0200
parents	c53e3aacb816
children

rev	line source
35525 e73accf3eddb Quote docstring with r"" to keep '\r\n' in example code. Hye-Shik Chang <hyeshik@gmail.com> parents: 31515 diff changeset	1 r"""TELNET client class.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	2
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	3 Based on RFC 854: TELNET Protocol Specification, by J. Postel and
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	4 J. Reynolds
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	5
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	6 Example:
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	7
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	8 >>> from telnetlib import Telnet
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	9 >>> tn = Telnet('www.python.org', 79) # connect to finger port
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	10 >>> tn.write('guido\r\n')
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	11 >>> print tn.read_all()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	12 Login Name TTY Idle When Where
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	13 guido Guido van Rossum pts/2 <Dec 2 11:10> snag.cnri.reston..
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 12547 diff changeset	14
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	15 >>>
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	16
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	17 Note that read_all() won't read until eof -- it just reads some data
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	18 -- but it guarantees to read at least one byte unless EOF is hit.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	19
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	20 It is possible to pass a Telnet object to select.select() in order to
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	21 wait until more data is available. Note that in this case,
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	22 read_eager() may return '' even if there was data on the socket,
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	23 because the protocol negotiation may have eaten the data. This is why
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	24 EOFError is needed in some cases to distinguish between "no data" and
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	25 "connection closed" (since the socket also appears ready for reading
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	26 when it is closed).
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	27
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	28 To do:
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	29 - option negotiation
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	30 - timeout should be intrinsic to the connection object instead of an
06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	31 option on one of the read calls only
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	32
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	33 """
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	34
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	35
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	36 # Imported modules
78127 c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	37 import errno
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	38 import sys
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	39 import socket
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	40 import select
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	41
16889 0feb63490093 final round of __all__ lists (I hope) - skipped urllib2 because Moshe may be Skip Montanaro <skip@pobox.com> parents: 16488 diff changeset	42 __all__ = ["Telnet"]
0feb63490093 final round of __all__ lists (I hope) - skipped urllib2 because Moshe may be Skip Montanaro <skip@pobox.com> parents: 16488 diff changeset	43
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	44 # Tunable parameters
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	45 DEBUGLEVEL = 0
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	46
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	47 # Telnet protocol defaults
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	48 TELNET_PORT = 23
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	49
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	50 # Telnet protocol characters (don't change)
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	51 IAC = chr(255) # "Interpret As Command"
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	52 DONT = chr(254)
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	53 DO = chr(253)
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	54 WONT = chr(252)
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	55 WILL = chr(251)
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	56 theNULL = chr(0)
26016 bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	57
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	58 SE = chr(240) # Subnegotiation End
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	59 NOP = chr(241) # No Operation
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	60 DM = chr(242) # Data Mark
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	61 BRK = chr(243) # Break
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	62 IP = chr(244) # Interrupt process
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	63 AO = chr(245) # Abort output
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	64 AYT = chr(246) # Are You There
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	65 EC = chr(247) # Erase Character
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	66 EL = chr(248) # Erase Line
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	67 GA = chr(249) # Go Ahead
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	68 SB = chr(250) # Subnegotiation Begin
bd677c8e4067 Patch #625823: Add symbolic constants for more commands. Martin v. Löwis <martin@v.loewis.de> parents: 26010 diff changeset	69
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	70
19760 96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	71 # Telnet protocol options code (don't change)
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	72 # These ones all come from arpa/telnet.h
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	73 BINARY = chr(0) # 8-bit data path
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	74 ECHO = chr(1) # echo
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	75 RCP = chr(2) # prepare to reconnect
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	76 SGA = chr(3) # suppress go ahead
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	77 NAMS = chr(4) # approximate message size
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	78 STATUS = chr(5) # give status
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	79 TM = chr(6) # timing mark
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	80 RCTE = chr(7) # remote controlled transmission and echo
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	81 NAOL = chr(8) # negotiate about output line width
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	82 NAOP = chr(9) # negotiate about output page size
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	83 NAOCRD = chr(10) # negotiate about CR disposition
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	84 NAOHTS = chr(11) # negotiate about horizontal tabstops
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	85 NAOHTD = chr(12) # negotiate about horizontal tab disposition
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	86 NAOFFD = chr(13) # negotiate about formfeed disposition
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	87 NAOVTS = chr(14) # negotiate about vertical tab stops
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	88 NAOVTD = chr(15) # negotiate about vertical tab disposition
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	89 NAOLFD = chr(16) # negotiate about output LF disposition
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	90 XASCII = chr(17) # extended ascii character set
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	91 LOGOUT = chr(18) # force logout
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	92 BM = chr(19) # byte macro
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	93 DET = chr(20) # data entry terminal
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	94 SUPDUP = chr(21) # supdup protocol
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	95 SUPDUPOUTPUT = chr(22) # supdup output
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	96 SNDLOC = chr(23) # send location
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	97 TTYPE = chr(24) # terminal type
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	98 EOR = chr(25) # end or record
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	99 TUID = chr(26) # TACACS user identification
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	100 OUTMRK = chr(27) # output marking
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	101 TTYLOC = chr(28) # terminal location number
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	102 VT3270REGIME = chr(29) # 3270 regime
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	103 X3PAD = chr(30) # X.3 PAD
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	104 NAWS = chr(31) # window size
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	105 TSPEED = chr(32) # terminal speed
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	106 LFLOW = chr(33) # remote flow control
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	107 LINEMODE = chr(34) # Linemode option
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	108 XDISPLOC = chr(35) # X Display Location
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	109 OLD_ENVIRON = chr(36) # Old - Environment variables
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	110 AUTHENTICATION = chr(37) # Authenticate
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	111 ENCRYPT = chr(38) # Encryption option
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	112 NEW_ENVIRON = chr(39) # New - Environment variables
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	113 # the following ones come from
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	114 # http://www.iana.org/assignments/telnet-options
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	115 # Unfortunately, that document does not assign identifiers
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	116 # to all of them, so we are making them up
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	117 TN3270E = chr(40) # TN3270E
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	118 XAUTH = chr(41) # XAUTH
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	119 CHARSET = chr(42) # CHARSET
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	120 RSP = chr(43) # Telnet Remote Serial Port
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	121 COM_PORT_OPTION = chr(44) # Com Port Control Option
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	122 SUPPRESS_LOCAL_ECHO = chr(45) # Telnet Suppress Local Echo
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	123 TLS = chr(46) # Telnet Start TLS
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	124 KERMIT = chr(47) # KERMIT
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	125 SEND_URL = chr(48) # SEND-URL
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	126 FORWARD_X = chr(49) # FORWARD_X
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	127 PRAGMA_LOGON = chr(138) # TELOPT PRAGMA LOGON
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	128 SSPI_LOGON = chr(139) # TELOPT SSPI LOGON
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	129 PRAGMA_HEARTBEAT = chr(140) # TELOPT PRAGMA HEARTBEAT
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	130 EXOPL = chr(255) # Extended-Options-List
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	131 NOOPT = chr(0)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	132
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	133 class Telnet:
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	134
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	135 """Telnet interface class.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	136
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	137 An instance of this class represents a connection to a telnet
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	138 server. The instance is initially not connected; the open()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	139 method must be used to establish a connection. Alternatively, the
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	140 host name and optional port number can be passed to the
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	141 constructor, too.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	142
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	143 Don't try to reopen an already connected instance.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	144
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	145 This class has many read_*() methods. Note that some of them
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	146 raise EOFError when the end of the connection is read, because
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	147 they can return an empty string for other reasons. See the
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	148 individual doc strings.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	149
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	150 read_until(expected, [timeout])
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	151 Read until the expected string has been seen, or a timeout is
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	152 hit (default is no timeout); may block.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	153
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	154 read_all()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	155 Read all data until EOF; may block.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	156
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	157 read_some()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	158 Read at least one byte or EOF; may block.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	159
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	160 read_very_eager()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	161 Read all data available already queued or on the socket,
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	162 without blocking.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	163
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	164 read_eager()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	165 Read either data already queued or some data available on the
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	166 socket, without blocking.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	167
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	168 read_lazy()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	169 Read all data in the raw queue (processing it first), without
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	170 doing any socket I/O.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	171
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	172 read_very_lazy()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	173 Reads all data in the cooked queue, without doing any socket
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	174 I/O.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	175
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	176 read_sb_data()
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	177 Reads available data between SB ... SE sequence. Don't block.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	178
19760 96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	179 set_option_negotiation_callback(callback)
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	180 Each time a telnet option is read on the input flow, this callback
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	181 (if set) is called with the following parameters :
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	182 callback(telnet socket, command, option)
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	183 option will be chr(0) when there is no option.
19760 96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	184 No other action is done afterwards by telnetlib.
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	185
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	186 """
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	187
47372 e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	188 def __init__(self, host=None, port=0,
e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	189 timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	190 """Constructor.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	191
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	192 When called without arguments, create an unconnected instance.
47372 e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	193 With a hostname argument, it connects the instance; port number
e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	194 and timeout are optional.
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	195 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	196 self.debuglevel = DEBUGLEVEL
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	197 self.host = host
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	198 self.port = port
41323 3fd8f06577ff Added timout parameter to telnetlib.Telnet. Also created Facundo Batista <facundobatista@gmail.com> parents: 38992 diff changeset	199 self.timeout = timeout
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	200 self.sock = None
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	201 self.rawq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	202 self.irawq = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	203 self.cookedq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	204 self.eof = 0
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	205 self.iacseq = '' # Buffer for IAC sequence.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	206 self.sb = 0 # flag for SB and SE sequence.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	207 self.sbdataq = ''
19760 96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	208 self.option_callback = None
78127 c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	209 self._has_poll = hasattr(select, 'poll')
23628 ea979c5206b7 Replaced boolean tests with is None. Raymond Hettinger <python@rcn.com> parents: 23434 diff changeset	210 if host is not None:
41323 3fd8f06577ff Added timout parameter to telnetlib.Telnet. Also created Facundo Batista <facundobatista@gmail.com> parents: 38992 diff changeset	211 self.open(host, port, timeout)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	212
47372 e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	213 def open(self, host, port=0, timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	214 """Connect to a host.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	215
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	216 The optional second argument is the port number, which
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	217 defaults to the standard telnet port (23).
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	218
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	219 Don't try to reopen an already connected instance.
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	220 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	221 self.eof = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	222 if not port:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	223 port = TELNET_PORT
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	224 self.host = host
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	225 self.port = port
47372 e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	226 self.timeout = timeout
e2c5ae30cffe Fixed the semantic of timeout for socket.create_connection and Facundo Batista <facundobatista@gmail.com> parents: 41323 diff changeset	227 self.sock = socket.create_connection((host, port), timeout)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	228
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	229 def __del__(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	230 """Destructor -- close the connection."""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	231 self.close()
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	232
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	233 def msg(self, msg, *args):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	234 """Print a debug message, when the debug level is > 0.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	235
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	236 If extra arguments are present, they are substituted in the
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	237 message using the standard string formatting operator.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	238
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	239 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	240 if self.debuglevel > 0:
66892 8ccf58b0a5da Merged revisions 87230 via svnmerge from R. David Murray <rdmurray@bitdance.com> parents: 47372 diff changeset	241 print 'Telnet(%s,%s):' % (self.host, self.port),
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	242 if args:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	243 print msg % args
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	244 else:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	245 print msg
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	246
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	247 def set_debuglevel(self, debuglevel):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	248 """Set the debug level.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	249
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	250 The higher it is, the more debug output you get (on sys.stdout).
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	251
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	252 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	253 self.debuglevel = debuglevel
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	254
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	255 def close(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	256 """Close the connection."""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	257 if self.sock:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	258 self.sock.close()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	259 self.sock = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	260 self.eof = 1
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	261 self.iacseq = ''
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	262 self.sb = 0
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	263
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	264 def get_socket(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	265 """Return the socket object used internally."""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	266 return self.sock
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	267
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	268 def fileno(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	269 """Return the fileno() of the socket object used internally."""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	270 return self.sock.fileno()
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	271
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	272 def write(self, buffer):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	273 """Write a string to the socket, doubling any IAC characters.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	274
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	275 Can block if the connection is blocked. May raise
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	276 socket.error if the connection is closed.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	277
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	278 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	279 if IAC in buffer:
16488 92cbefdb674a String method conversion. Eric S. Raymond <esr@thyrsus.com> parents: 15873 diff changeset	280 buffer = buffer.replace(IAC, IAC+IAC)
31515 71a294bd7950 Replace backticks with repr() or "%r" Walter Dörwald <walter@livinglogic.de> parents: 28089 diff changeset	281 self.msg("send %r", buffer)
21963 2faa23facef7 The Grande 'sendall()' patch, copied from release21-maint. Fixes #516715. Martin v. Löwis <martin@v.loewis.de> parents: 20303 diff changeset	282 self.sock.sendall(buffer)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	283
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	284 def read_until(self, match, timeout=None):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	285 """Read until a given string is encountered or until timeout.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	286
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	287 When no match is found, return whatever is available instead,
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	288 possibly the empty string. Raise EOFError if the connection
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	289 is closed and no cooked data is available.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	290
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	291 """
78127 c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	292 if self._has_poll:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	293 return self._read_until_with_poll(match, timeout)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	294 else:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	295 return self._read_until_with_select(match, timeout)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	296
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	297 def _read_until_with_poll(self, match, timeout):
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	298 """Read until a given string is encountered or until timeout.
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	299
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	300 This method uses select.poll() to implement the timeout.
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	301 """
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	302 n = len(match)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	303 call_timeout = timeout
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	304 if timeout is not None:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	305 from time import time
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	306 time_start = time()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	307 self.process_rawq()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	308 i = self.cookedq.find(match)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	309 if i < 0:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	310 poller = select.poll()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	311 poll_in_or_priority_flags = select.POLLIN \| select.POLLPRI
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	312 poller.register(self, poll_in_or_priority_flags)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	313 while i < 0 and not self.eof:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	314 try:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	315 ready = poller.poll(call_timeout)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	316 except select.error as e:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	317 if e.errno == errno.EINTR:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	318 if timeout is not None:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	319 elapsed = time() - time_start
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	320 call_timeout = timeout-elapsed
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	321 continue
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	322 raise
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	323 for fd, mode in ready:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	324 if mode & poll_in_or_priority_flags:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	325 i = max(0, len(self.cookedq)-n)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	326 self.fill_rawq()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	327 self.process_rawq()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	328 i = self.cookedq.find(match, i)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	329 if timeout is not None:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	330 elapsed = time() - time_start
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	331 if elapsed >= timeout:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	332 break
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	333 call_timeout = timeout-elapsed
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	334 poller.unregister(self)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	335 if i >= 0:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	336 i = i + n
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	337 buf = self.cookedq[:i]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	338 self.cookedq = self.cookedq[i:]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	339 return buf
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	340 return self.read_very_lazy()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	341
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	342 def _read_until_with_select(self, match, timeout=None):
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	343 """Read until a given string is encountered or until timeout.
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	344
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	345 The timeout is implemented using select.select().
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	346 """
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	347 n = len(match)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	348 self.process_rawq()
16488 92cbefdb674a String method conversion. Eric S. Raymond <esr@thyrsus.com> parents: 15873 diff changeset	349 i = self.cookedq.find(match)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	350 if i >= 0:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	351 i = i+n
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	352 buf = self.cookedq[:i]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	353 self.cookedq = self.cookedq[i:]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	354 return buf
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	355 s_reply = ([self], [], [])
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	356 s_args = s_reply
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	357 if timeout is not None:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	358 s_args = s_args + (timeout,)
38992 093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	359 from time import time
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	360 time_start = time()
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26126 diff changeset	361 while not self.eof and select.select(*s_args) == s_reply:
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	362 i = max(0, len(self.cookedq)-n)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	363 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	364 self.process_rawq()
16488 92cbefdb674a String method conversion. Eric S. Raymond <esr@thyrsus.com> parents: 15873 diff changeset	365 i = self.cookedq.find(match, i)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	366 if i >= 0:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	367 i = i+n
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	368 buf = self.cookedq[:i]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	369 self.cookedq = self.cookedq[i:]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	370 return buf
38992 093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	371 if timeout is not None:
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	372 elapsed = time() - time_start
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	373 if elapsed >= timeout:
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	374 break
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	375 s_args = s_reply + (timeout-elapsed,)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	376 return self.read_very_lazy()
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	377
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	378 def read_all(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	379 """Read all data until EOF; block until connection closed."""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	380 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	381 while not self.eof:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	382 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	383 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	384 buf = self.cookedq
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	385 self.cookedq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	386 return buf
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	387
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	388 def read_some(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	389 """Read at least one byte of cooked data unless EOF is hit.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	390
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	391 Return '' if EOF is hit. Block if no data is immediately
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	392 available.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	393
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	394 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	395 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	396 while not self.cookedq and not self.eof:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	397 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	398 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	399 buf = self.cookedq
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	400 self.cookedq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	401 return buf
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	402
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	403 def read_very_eager(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	404 """Read everything that's possible without blocking in I/O (eager).
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 12547 diff changeset	405
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	406 Raise EOFError if connection closed and no cooked data
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	407 available. Return '' if no cooked data available otherwise.
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	408 Don't block unless in the midst of an IAC sequence.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	409
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	410 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	411 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	412 while not self.eof and self.sock_avail():
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	413 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	414 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	415 return self.read_very_lazy()
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	416
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	417 def read_eager(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	418 """Read readily available data.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	419
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	420 Raise EOFError if connection closed and no cooked data
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	421 available. Return '' if no cooked data available otherwise.
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	422 Don't block unless in the midst of an IAC sequence.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	423
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	424 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	425 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	426 while not self.cookedq and not self.eof and self.sock_avail():
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	427 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	428 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	429 return self.read_very_lazy()
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	430
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	431 def read_lazy(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	432 """Process and return data that's already in the queues (lazy).
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 12547 diff changeset	433
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	434 Raise EOFError if connection closed and no data available.
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	435 Return '' if no cooked data available otherwise. Don't block
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	436 unless in the midst of an IAC sequence.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	437
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	438 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	439 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	440 return self.read_very_lazy()
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	441
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	442 def read_very_lazy(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	443 """Return any data available in the cooked queue (very lazy).
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	444
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	445 Raise EOFError if connection closed and no data available.
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	446 Return '' if no cooked data available otherwise. Don't block.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	447
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	448 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	449 buf = self.cookedq
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	450 self.cookedq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	451 if not buf and self.eof and not self.rawq:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	452 raise EOFError, 'telnet connection closed'
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	453 return buf
26126 98f3fd1ed42f Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 26016 diff changeset	454
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	455 def read_sb_data(self):
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	456 """Return any data available in the SB ... SE queue.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	457
26126 98f3fd1ed42f Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 26016 diff changeset	458 Return '' if no SB ... SE available. Should only be called
98f3fd1ed42f Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 26016 diff changeset	459 after seeing a SB or SE command. When a new SB command is
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	460 found, old unread SB data will be discarded. Don't block.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	461
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	462 """
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	463 buf = self.sbdataq
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	464 self.sbdataq = ''
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	465 return buf
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	466
19760 96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	467 def set_option_negotiation_callback(self, callback):
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	468 """Provide a callback function called after each receipt of a telnet option."""
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	469 self.option_callback = callback
96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	470
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	471 def process_rawq(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	472 """Transfer from raw queue to cooked queue.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	473
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	474 Set self.eof when connection is closed. Don't block unless in
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	475 the midst of an IAC sequence.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	476
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	477 """
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	478 buf = ['', '']
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	479 try:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	480 while self.rawq:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	481 c = self.rawq_getchar()
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	482 if not self.iacseq:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	483 if c == theNULL:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	484 continue
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	485 if c == "\021":
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	486 continue
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	487 if c != IAC:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	488 buf[self.sb] = buf[self.sb] + c
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	489 continue
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	490 else:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	491 self.iacseq += c
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	492 elif len(self.iacseq) == 1:
37546 edc6a0cc8466 Fix a couple of strings that were no-ops. urllib.open_file was a docstring Neal Norwitz <nnorwitz@gmail.com> parents: 35525 diff changeset	493 # 'IAC: IAC CMD [OPTION only for WILL/WONT/DO/DONT]'
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	494 if c in (DO, DONT, WILL, WONT):
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	495 self.iacseq += c
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	496 continue
26126 98f3fd1ed42f Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 26016 diff changeset	497
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	498 self.iacseq = ''
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	499 if c == IAC:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	500 buf[self.sb] = buf[self.sb] + c
19760 96da985cde98 Patch #416079: fix the debug string output when receiving telnet commands. Martin v. Löwis <martin@v.loewis.de> parents: 18902 diff changeset	501 else:
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	502 if c == SB: # SB ... SE start.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	503 self.sb = 1
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	504 self.sbdataq = ''
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	505 elif c == SE:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	506 self.sb = 0
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	507 self.sbdataq = self.sbdataq + buf[1]
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	508 buf[1] = ''
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	509 if self.option_callback:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	510 # Callback is supposed to look into
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	511 # the sbdataq
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	512 self.option_callback(self.sock, c, NOOPT)
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	513 else:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	514 # We can't offer automatic processing of
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	515 # suboptions. Alas, we should not get any
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	516 # unless we did a WILL/DO before.
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	517 self.msg('IAC %d not recognized' % ord(c))
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	518 elif len(self.iacseq) == 2:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	519 cmd = self.iacseq[1]
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	520 self.iacseq = ''
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	521 opt = c
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	522 if cmd in (DO, DONT):
26126 98f3fd1ed42f Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 26016 diff changeset	523 self.msg('IAC %s %d',
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	524 cmd == DO and 'DO' or 'DONT', ord(opt))
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	525 if self.option_callback:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	526 self.option_callback(self.sock, cmd, opt)
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	527 else:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	528 self.sock.sendall(IAC + WONT + opt)
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	529 elif cmd in (WILL, WONT):
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	530 self.msg('IAC %s %d',
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	531 cmd == WILL and 'WILL' or 'WONT', ord(opt))
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	532 if self.option_callback:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	533 self.option_callback(self.sock, cmd, opt)
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	534 else:
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	535 self.sock.sendall(IAC + DONT + opt)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	536 except EOFError: # raised by self.rawq_getchar()
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	537 self.iacseq = '' # Reset on EOF
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	538 self.sb = 0
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	539 pass
26010 36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	540 self.cookedq = self.cookedq + buf[0]
36ea31bc9076 Patch #630829: Don't block on IAC, process suboptions. Martin v. Löwis <martin@v.loewis.de> parents: 23628 diff changeset	541 self.sbdataq = self.sbdataq + buf[1]
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	542
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	543 def rawq_getchar(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	544 """Get next char from raw queue.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	545
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	546 Block if no data is immediately available. Raise EOFError
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	547 when connection is closed.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	548
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	549 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	550 if not self.rawq:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	551 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	552 if self.eof:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	553 raise EOFError
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	554 c = self.rawq[self.irawq]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	555 self.irawq = self.irawq + 1
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	556 if self.irawq >= len(self.rawq):
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	557 self.rawq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	558 self.irawq = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	559 return c
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	560
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	561 def fill_rawq(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	562 """Fill raw queue from exactly one recv() system call.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	563
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	564 Block if no data is immediately available. Set self.eof when
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	565 connection is closed.
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	566
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	567 """
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	568 if self.irawq >= len(self.rawq):
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	569 self.rawq = ''
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	570 self.irawq = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	571 # The buffer size should be fairly small so as to avoid quadratic
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	572 # behavior in process_rawq() above
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	573 buf = self.sock.recv(50)
31515 71a294bd7950 Replace backticks with repr() or "%r" Walter Dörwald <walter@livinglogic.de> parents: 28089 diff changeset	574 self.msg("recv %r", buf)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	575 self.eof = (not buf)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	576 self.rawq = self.rawq + buf
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	577
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	578 def sock_avail(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	579 """Test whether data is available on the socket."""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	580 return select.select([self], [], [], 0) == ([self], [], [])
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	581
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	582 def interact(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	583 """Interaction function, emulates a very dumb telnet client."""
9727 eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	584 if sys.platform == "win32":
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	585 self.mt_interact()
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	586 return
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	587 while 1:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	588 rfd, wfd, xfd = select.select([self, sys.stdin], [], [])
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	589 if self in rfd:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	590 try:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	591 text = self.read_eager()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	592 except EOFError:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	593 print '* Connection closed by remote host *'
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	594 break
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	595 if text:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	596 sys.stdout.write(text)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	597 sys.stdout.flush()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	598 if sys.stdin in rfd:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	599 line = sys.stdin.readline()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	600 if not line:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	601 break
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	602 self.write(line)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	603
9727 eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	604 def mt_interact(self):
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	605 """Multithreaded version of interact()."""
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	606 import thread
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	607 thread.start_new_thread(self.listener, ())
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	608 while 1:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	609 line = sys.stdin.readline()
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	610 if not line:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	611 break
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	612 self.write(line)
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	613
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	614 def listener(self):
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	615 """Helper for mt_interact() -- this executes in the other thread."""
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	616 while 1:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	617 try:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	618 data = self.read_eager()
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	619 except EOFError:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	620 print '* Connection closed by remote host *'
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	621 return
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	622 if data:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	623 sys.stdout.write(data)
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	624 else:
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	625 sys.stdout.flush()
eaab8feb7fc0 Added mt_interact() -- multithreaded version of interact(). Guido van Rossum <guido@python.org> parents: 7755 diff changeset	626
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	627 def expect(self, list, timeout=None):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	628 """Read until one from a list of a regular expressions matches.
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	629
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	630 The first argument is a list of regular expressions, either
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	631 compiled (re.RegexObject instances) or uncompiled (strings).
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	632 The optional second argument is a timeout, in seconds; default
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	633 is no timeout.
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	634
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	635 Return a tuple of three items: the index in the list of the
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	636 first regular expression that matches; the match object
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	637 returned; and the text read up till and including the match.
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	638
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	639 If EOF is read and no text was read, raise EOFError.
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	640 Otherwise, when nothing matches, return (-1, None, text) where
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	641 text is the text received so far (may be the empty string if a
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	642 timeout happened).
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	643
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	644 If a regular expression ends with a greedy match (e.g. '.*')
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	645 or if more than one expression can match the same input, the
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	646 results are undeterministic, and may depend on the I/O timing.
6942 06291f04ba9c Added expect() method which takes a list of regular expressions and an Guido van Rossum <guido@python.org> parents: 6941 diff changeset	647
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	648 """
78127 c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	649 if self._has_poll:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	650 return self._expect_with_poll(list, timeout)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	651 else:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	652 return self._expect_with_select(list, timeout)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	653
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	654 def _expect_with_poll(self, expect_list, timeout=None):
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	655 """Read until one from a list of a regular expressions matches.
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	656
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	657 This method uses select.poll() to implement the timeout.
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	658 """
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	659 re = None
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	660 expect_list = expect_list[:]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	661 indices = range(len(expect_list))
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	662 for i in indices:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	663 if not hasattr(expect_list[i], "search"):
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	664 if not re: import re
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	665 expect_list[i] = re.compile(expect_list[i])
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	666 call_timeout = timeout
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	667 if timeout is not None:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	668 from time import time
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	669 time_start = time()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	670 self.process_rawq()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	671 m = None
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	672 for i in indices:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	673 m = expect_list[i].search(self.cookedq)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	674 if m:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	675 e = m.end()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	676 text = self.cookedq[:e]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	677 self.cookedq = self.cookedq[e:]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	678 break
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	679 if not m:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	680 poller = select.poll()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	681 poll_in_or_priority_flags = select.POLLIN \| select.POLLPRI
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	682 poller.register(self, poll_in_or_priority_flags)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	683 while not m and not self.eof:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	684 try:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	685 ready = poller.poll(call_timeout)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	686 except select.error as e:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	687 if e.errno == errno.EINTR:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	688 if timeout is not None:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	689 elapsed = time() - time_start
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	690 call_timeout = timeout-elapsed
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	691 continue
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	692 raise
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	693 for fd, mode in ready:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	694 if mode & poll_in_or_priority_flags:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	695 self.fill_rawq()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	696 self.process_rawq()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	697 for i in indices:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	698 m = expect_list[i].search(self.cookedq)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	699 if m:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	700 e = m.end()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	701 text = self.cookedq[:e]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	702 self.cookedq = self.cookedq[e:]
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	703 break
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	704 if timeout is not None:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	705 elapsed = time() - time_start
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	706 if elapsed >= timeout:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	707 break
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	708 call_timeout = timeout-elapsed
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	709 poller.unregister(self)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	710 if m:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	711 return (i, m, text)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	712 text = self.read_very_lazy()
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	713 if not text and self.eof:
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	714 raise EOFError
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	715 return (-1, None, text)
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	716
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	717 def _expect_with_select(self, list, timeout=None):
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	718 """Read until one from a list of a regular expressions matches.
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	719
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	720 The timeout is implemented using select.select().
c53e3aacb816 Fixes Issue #14635: telnetlib will use poll() rather than select() when possible Gregory P. Smith <greg@krypto.org> parents: 66892 diff changeset	721 """
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	722 re = None
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	723 list = list[:]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	724 indices = range(len(list))
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	725 for i in indices:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	726 if not hasattr(list[i], "search"):
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	727 if not re: import re
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	728 list[i] = re.compile(list[i])
38992 093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	729 if timeout is not None:
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	730 from time import time
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	731 time_start = time()
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	732 while 1:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	733 self.process_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	734 for i in indices:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	735 m = list[i].search(self.cookedq)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	736 if m:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	737 e = m.end()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	738 text = self.cookedq[:e]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	739 self.cookedq = self.cookedq[e:]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	740 return (i, m, text)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	741 if self.eof:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	742 break
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	743 if timeout is not None:
38992 093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	744 elapsed = time() - time_start
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	745 if elapsed >= timeout:
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	746 break
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	747 s_args = ([self.fileno()], [], [], timeout-elapsed)
093156899f75 Patch #825417: Fix timeout processing in expect, Martin v. Löwis <martin@v.loewis.de> parents: 37546 diff changeset	748 r, w, x = select.select(*s_args)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	749 if not r:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	750 break
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	751 self.fill_rawq()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	752 text = self.read_very_lazy()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	753 if not text and self.eof:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	754 raise EOFError
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	755 return (-1, None, text)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	756
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	757
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	758 def test():
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	759 """Test program for telnetlib.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	760
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	761 Usage: python telnetlib.py [-d] ... [host [port]]
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	762
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	763 Default host is localhost; default port is 23.
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	764
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	765 """
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	766 debuglevel = 0
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	767 while sys.argv[1:] and sys.argv[1] == '-d':
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	768 debuglevel = debuglevel+1
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	769 del sys.argv[1]
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	770 host = 'localhost'
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	771 if sys.argv[1:]:
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	772 host = sys.argv[1]
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	773 port = 0
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	774 if sys.argv[2:]:
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	775 portstr = sys.argv[2]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	776 try:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	777 port = int(portstr)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	778 except ValueError:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 7414 diff changeset	779 port = socket.getservbyname(portstr, 'tcp')
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	780 tn = Telnet()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	781 tn.set_debuglevel(debuglevel)
41323 3fd8f06577ff Added timout parameter to telnetlib.Telnet. Also created Facundo Batista <facundobatista@gmail.com> parents: 38992 diff changeset	782 tn.open(host, port, timeout=0.5)
6940 1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	783 tn.interact()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	784 tn.close()
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	785
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	786 if __name__ == '__main__':
1dafad307006 Decided to add the telnet library that I wrote long ago (it's still in Guido van Rossum <guido@python.org> parents: diff changeset	787 test()

Mercurial > cpython-lru_cache-weakref

annotate Lib/telnetlib.py @ 80661:94de77bd0b4b 2.7