diff options
Diffstat (limited to 'lib/telnet.rb')
| -rw-r--r-- | lib/telnet.rb | 742 |
1 files changed, 6 insertions, 736 deletions
diff --git a/lib/telnet.rb b/lib/telnet.rb index 47a0926f8e..b861ffa783 100644 --- a/lib/telnet.rb +++ b/lib/telnet.rb @@ -1,739 +1,9 @@ -=begin -$Date: 2000/01/24 17:02:57 $ +# +# telnet.rb +# -== SIMPLE TELNET CLIENT LIBRARY +$stderr.puts 'Warning: telnet.rb is obsolete: use net/telnet' -telnet.rb +require 'net/telnet' -Version 1.20 - -Wakou Aoyama <wakou@fsinet.or.jp> - - -=== MAKE NEW TELNET OBJECT - - host = Telnet.new({"Binmode" => false, # default: false - "Host" => "localhost", # default: "localhost" - "Output_log" => "output_log", # default: not output - "Dump_log" => "dump_log", # default: not output - "Port" => 23, # default: 23 - "Prompt" => /[$%#>] \z/n, # default: /[$%#>] \z/n - "Telnetmode" => true, # default: true - "Timeout" => 10, # default: 10 - # if ignore timeout then set "Timeout" to false. - "Waittime" => 0, # default: 0 - "Proxy" => proxy}) # default: nil - # proxy is Telnet or TCPsocket object - -Telnet object has socket class methods. - -if set "Telnetmode" option to false. not telnet command interpretation. -"Waittime" is time to confirm "Prompt". There is a possibility that -the same character as "Prompt" is included in the data, and, when -the network or the host is very heavy, the value is enlarged. - -=== STATUS OUTPUT - - host = Telnet.new({"Host" => "localhost"}){|c| print c } - -connection status output. - -example - - Trying localhost... - Connected to localhost. - - -=== WAIT FOR MATCH - - line = host.waitfor(/match/) - line = host.waitfor({"Match" => /match/, - "String" => "string", - "Timeout" => secs}) - # if ignore timeout then set "Timeout" to false. - -if set "String" option, then Match == Regexp.new(quote("string")) - - -==== REALTIME OUTPUT - - host.waitfor(/match/){|c| print c } - host.waitfor({"Match" => /match/, - "String" => "string", - "Timeout" => secs}){|c| print c} - -of cource, set sync=true or flush is necessary. - - -=== SEND STRING AND WAIT PROMPT - - line = host.cmd("string") - line = host.cmd({"String" => "string", - "Prompt" => /[$%#>] \z/n, - "Timeout" => 10}) - - -==== REALTIME OUTPUT - - host.cmd("string"){|c| print c } - host.cmd({"String" => "string", - "Prompt" => /[$%#>] \z/n, - "Timeout" => 10}){|c| print c } - -of cource, set sync=true or flush is necessary. - - -=== SEND STRING - - host.print("string") - # == host.write("string\n") - - -=== TURN TELNET COMMAND INTERPRETATION - - host.telnetmode # turn on/off - host.telnetmode(true) # on - host.telnetmode(false) # off - - -=== TOGGLE NEWLINE TRANSLATION - - host.binmode # turn true/false - host.binmode(true) # no translate newline - host.binmode(false) # translate newline - - -=== LOGIN - - host.login("username", "password") - host.login({"Name" => "username", - "Password" => "password", - "Prompt" => /[$%#>] \z/n, - "Timeout" => 10}) - -if no password prompt. - - host.login("username") - host.login({"Name" => "username", - "Prompt" => /[$%#>] \z/n, - "Timeout" => 10}) - - -==== REALTIME OUTPUT - - host.login("username", "password"){|c| print c } - host.login({"Name" => "username", - "Password" => "password", - "Prompt" => /[$%#>] \z/n, - "Timeout" => 10}){|c| print c } - -of cource, set sync=true or flush is necessary. - - -== EXAMPLE - -=== LOGIN AND SEND COMMAND - - localhost = Telnet.new({"Host" => "localhost", - "Timeout" => 10, - "Prompt" => /[$%#>] \z/n}) - localhost.login("username", "password"){|c| print c } - localhost.cmd("command"){|c| print c } - localhost.close - - -=== CHECKS A POP SERVER TO SEE IF YOU HAVE MAIL - - pop = Telnet.new({"Host" => "your_destination_host_here", - "Port" => 110, - "Telnetmode" => false, - "Prompt" => /^\+OK/n}) - pop.cmd("user " + "your_username_here"){|c| print c} - pop.cmd("pass " + "your_password_here"){|c| print c} - pop.cmd("list"){|c| print c} - - -== HISTORY - -=== Version 1.20 - -2000/01/24 17:02:57 - -- respond to "IAC WILL x" with "IAC DONT x" -- respond to "IAC WONT x" with "IAC DONT x" -- better dumplog format - thanks to WATANABE Hirofumi <Hirofumi.Watanabe@jp.sony.com> - -=== Version 1.10 - -2000/01/18 17:47:31 - -- bug fix: write method -- respond to "IAC WILL BINARY" with "IAC DO BINARY" - -=== Version 1.00 - -1999/10/04 22:51:26 - -- bug fix: waitfor(preprocess) method - thanks to Shin-ichiro Hara <sinara@blade.nagaokaut.ac.jp> -- add simple support for AO, DM, IP, NOP, SB, SE -- COUTION! TimeOut --> TimeoutError - -=== Version 0.50 - -1999/09/21 21:24:07 - -- add write method - -=== Version 0.40 - -1999/09/17 17:41:41 - -- bug fix: preprocess method - -=== Version 0.30 - -1999/09/14 23:09:05 - -- change prompt check order. - not IO::select([@sock], nil, nil, waittime) and prompt === line - --> prompt === line and not IO::select([@sock], nil, nil, waittime) - -=== Version 0.24 - -1999/09/13 22:28:33 - -- Telnet#login -if ommit password, then not require password prompt. - -=== Version 0.232 - -1999/08/10 05:20:21 - -- STATUS OUTPUT sample code typo. thanks to Tadayoshi Funaba <tadf@kt.rim.or.jp> - host = Telnet.new({"Hosh" => "localhost"){|c| print c } - --> host = Telnet.new({"Host" => "localhost"){|c| print c } - -=== Version 0.231 - -1999/07/16 13:39:42 - -- TRUE --> true, FALSE --> false - -=== Version 0.23 - -1999/07/15 22:32:09 - -- waitfor: if end of file reached, then return nil. - -=== Version 0.22 - -1999/06/29 09:08:51 - -- new, waitfor, cmd: {"Timeout" => false} # ignore timeout - -=== Version 0.21 - -1999/06/28 18:18:55 - -- waitfor: not rescue (EOFError) - -=== Version 0.20 - -1999/06/04 06:24:58 - -- waitfor: support for divided telnet command - -=== Version 0.181 - -1999/05/22 - -- bug fix: print method - -=== Version 0.18 - -1999/05/14 - -- respond to "IAC WON'T SGA" with "IAC DON'T SGA" -- DON'T SGA : end of line --> CR + LF -- bug fix: preprocess method - -=== Version 0.17 - -1999/04/30 - -- bug fix: $! + "\n" --> $!.to_s + "\n" - -=== Version 0.163 - -1999/04/11 - -- STDOUT.write(message) --> yield(message) if iterator? - -=== Version 0.162 - -1999/03/17 - -- add "Proxy" option -- required timeout.rb - -=== Version 0.161 - -1999/02/03 - -- select --> IO::select - -=== Version 0.16 - -1998/10/09 - -- preprocess method change for the better -- add binmode method. -- change default Binmode. TRUE --> FALSE - -=== Version 0.15 - -1998/10/04 - -- add telnetmode method. - -=== Version 0.141 - -1998/09/22 - -- change default prompt. /[$%#>] $/ --> /[$%#>] \Z/ - -=== Version 0.14 - -1998/09/01 - -- IAC WILL SGA send EOL --> CR+NULL -- IAC WILL SGA IAC DO BIN send EOL --> CR -- NONE send EOL --> LF -- add Dump_log option. - -=== Version 0.13 - -1998/08/25 - -- add print method. - -=== Version 0.122 - -1998/08/05 - -- support for HP-UX 10.20 thanks to WATANABE Tetsuya <tetsu@jpn.hp.com> -- socket.<< --> socket.write - -=== Version 0.121 - -1998/07/15 - -- string.+= --> string.concat - -=== Version 0.12 - -1998/06/01 - -- add timeout, waittime. - -=== Version 0.11 - -1998/04/21 - -- add realtime output. - -=== Version 0.10 - -1998/04/13 - -- first release. - -=end - -require "socket" -require "delegate" -require "timeout" - -class Telnet < SimpleDelegator - - IAC = 255.chr # "\377" # "\xff" # interpret as command: - DONT = 254.chr # "\376" # "\xfe" # you are not to use option - DO = 253.chr # "\375" # "\xfd" # please, you use option - WONT = 252.chr # "\374" # "\xfc" # I won't use option - WILL = 251.chr # "\373" # "\xfb" # I will use option - SB = 250.chr # "\372" # "\xfa" # interpret as subnegotiation - GA = 249.chr # "\371" # "\xf9" # you may reverse the line - EL = 248.chr # "\370" # "\xf8" # erase the current line - EC = 247.chr # "\367" # "\xf7" # erase the current character - AYT = 246.chr # "\366" # "\xf6" # are you there - AO = 245.chr # "\365" # "\xf5" # abort output--but let prog finish - IP = 244.chr # "\364" # "\xf4" # interrupt process--permanently - BREAK = 243.chr # "\363" # "\xf3" # break - DM = 242.chr # "\362" # "\xf2" # data mark--for connect. cleaning - NOP = 241.chr # "\361" # "\xf1" # nop - SE = 240.chr # "\360" # "\xf0" # end sub negotiation - EOR = 239.chr # "\357" # "\xef" # end of record (transparent mode) - ABORT = 238.chr # "\356" # "\xee" # Abort process - SUSP = 237.chr # "\355" # "\xed" # Suspend process - EOF = 236.chr # "\354" # "\xec" # End of file - SYNCH = 242.chr # "\362" # "\xf2" # for telfunc calls - - OPT_BINARY = 0.chr # "\000" # "\x00" # Binary Transmission - OPT_ECHO = 1.chr # "\001" # "\x01" # Echo - OPT_RCP = 2.chr # "\002" # "\x02" # Reconnection - OPT_SGA = 3.chr # "\003" # "\x03" # Suppress Go Ahead - OPT_NAMS = 4.chr # "\004" # "\x04" # Approx Message Size Negotiation - OPT_STATUS = 5.chr # "\005" # "\x05" # Status - OPT_TM = 6.chr # "\006" # "\x06" # Timing Mark - OPT_RCTE = 7.chr # "\a" # "\x07" # Remote Controlled Trans and Echo - OPT_NAOL = 8.chr # "\010" # "\x08" # Output Line Width - OPT_NAOP = 9.chr # "\t" # "\x09" # Output Page Size - OPT_NAOCRD = 10.chr # "\n" # "\x0a" # Output Carriage-Return Disposition - OPT_NAOHTS = 11.chr # "\v" # "\x0b" # Output Horizontal Tab Stops - OPT_NAOHTD = 12.chr # "\f" # "\x0c" # Output Horizontal Tab Disposition - OPT_NAOFFD = 13.chr # "\r" # "\x0d" # Output Formfeed Disposition - OPT_NAOVTS = 14.chr # "\016" # "\x0e" # Output Vertical Tabstops - OPT_NAOVTD = 15.chr # "\017" # "\x0f" # Output Vertical Tab Disposition - OPT_NAOLFD = 16.chr # "\020" # "\x10" # Output Linefeed Disposition - OPT_XASCII = 17.chr # "\021" # "\x11" # Extended ASCII - OPT_LOGOUT = 18.chr # "\022" # "\x12" # Logout - OPT_BM = 19.chr # "\023" # "\x13" # Byte Macro - OPT_DET = 20.chr # "\024" # "\x14" # Data Entry Terminal - OPT_SUPDUP = 21.chr # "\025" # "\x15" # SUPDUP - OPT_SUPDUPOUTPUT = 22.chr # "\026" # "\x16" # SUPDUP Output - OPT_SNDLOC = 23.chr # "\027" # "\x17" # Send Location - OPT_TTYPE = 24.chr # "\030" # "\x18" # Terminal Type - OPT_EOR = 25.chr # "\031" # "\x19" # End of Record - OPT_TUID = 26.chr # "\032" # "\x1a" # TACACS User Identification - OPT_OUTMRK = 27.chr # "\e" # "\x1b" # Output Marking - OPT_TTYLOC = 28.chr # "\034" # "\x1c" # Terminal Location Number - OPT_3270REGIME = 29.chr # "\035" # "\x1d" # Telnet 3270 Regime - OPT_X3PAD = 30.chr # "\036" # "\x1e" # X.3 PAD - OPT_NAWS = 31.chr # "\037" # "\x1f" # Negotiate About Window Size - OPT_TSPEED = 32.chr # " " # "\x20" # Terminal Speed - OPT_LFLOW = 33.chr # "!" # "\x21" # Remote Flow Control - OPT_LINEMODE = 34.chr # "\"" # "\x22" # Linemode - OPT_XDISPLOC = 35.chr # "#" # "\x23" # X Display Location - OPT_OLD_ENVIRON = 36.chr # "$" # "\x24" # Environment Option - OPT_AUTHENTICATION = 37.chr # "%" # "\x25" # Authentication Option - OPT_ENCRYPT = 38.chr # "&" # "\x26" # Encryption Option - OPT_NEW_ENVIRON = 39.chr # "'" # "\x27" # New Environment Option - OPT_EXOPL = 255.chr # "\377" # "\xff" # Extended-Options-List - - NULL = "\000" - CR = "\015" - LF = "\012" - EOL = CR + LF -v = $-v -$-v = false - VERSION = "1.20" - RELEASE_DATE = "$Date: 2000/01/24 17:02:57 $" -$-v = v - - def initialize(options) - @options = options - @options["Binmode"] = false unless @options.has_key?("Binmode") - @options["Host"] = "localhost" unless @options.has_key?("Host") - @options["Port"] = 23 unless @options.has_key?("Port") - @options["Prompt"] = /[$%#>] \z/n unless @options.has_key?("Prompt") - @options["Telnetmode"] = true unless @options.has_key?("Telnetmode") - @options["Timeout"] = 10 unless @options.has_key?("Timeout") - @options["Waittime"] = 0 unless @options.has_key?("Waittime") - - @telnet_option = { "SGA" => false, "BINARY" => false } - - if @options.has_key?("Output_log") - @log = File.open(@options["Output_log"], 'a+') - @log.sync = true - @log.binmode - end - - if @options.has_key?("Dump_log") - @dumplog = File.open(@options["Dump_log"], 'a+') - @dumplog.sync = true - @dumplog.binmode - def @dumplog.log_dump(dir, x) - len = x.length - addr = 0 - offset = 0 - while 0 < len - if len < 16 - line = x[offset, len] - else - line = x[offset, 16] - end - hexvals = line.unpack('H*')[0] - hexvals.concat ' ' * (32 - hexvals.length) - hexvals = format "%s %s %s %s " * 4, *hexvals.unpack('a2' * 16) - line.gsub! /[\000-\037\177-\377]/n, '.' - printf "%s 0x%5.5x: %s%s\n", dir, addr, hexvals, line - addr += 16 - offset += 16 - len -= 16 - end - print "\n" - end - end - - if @options.has_key?("Proxy") - if @options["Proxy"].kind_of?(Telnet) - @sock = @options["Proxy"].sock - elsif @options["Proxy"].kind_of?(TCPsocket) - @sock = @options["Proxy"] - else - raise "Error; Proxy is Telnet or TCPSocket object." - end - else - message = "Trying " + @options["Host"] + "...\n" - yield(message) if iterator? - @log.write(message) if @options.has_key?("Output_log") - @dumplog.log_dump('#', message) if @options.has_key?("Dump_log") - - begin - if @options["Timeout"] == false - @sock = TCPsocket.open(@options["Host"], @options["Port"]) - else - timeout(@options["Timeout"]){ - @sock = TCPsocket.open(@options["Host"], @options["Port"]) - } - end - rescue TimeoutError - raise TimeoutError, "timed-out; opening of the host" - rescue - @log.write($!.to_s + "\n") if @options.has_key?("Output_log") - @dumplog.log_dump('#', $!.to_s + "\n") if @options.has_key?("Dump_log") - raise - end - @sock.sync = true - @sock.binmode - - message = "Connected to " + @options["Host"] + ".\n" - yield(message) if iterator? - @log.write(message) if @options.has_key?("Output_log") - @dumplog.log_dump('#', message) if @options.has_key?("Dump_log") - end - - super(@sock) - end # initialize - - attr :sock - - def telnetmode(mode = 'turn') - if 'turn' == mode - @options["Telnetmode"] = @options["Telnetmode"] ? false : true - else - @options["Telnetmode"] = mode ? true : false - end - end - - def binmode(mode = 'turn') - if 'turn' == mode - @options["Binmode"] = @options["Binmode"] ? false : true - else - @options["Binmode"] = mode ? true : false - end - end - - def preprocess(string) - str = string.dup - - # combine CR+NULL into CR - str.gsub!(/#{CR}#{NULL}/no, CR) if @options["Telnetmode"] - - # combine EOL into "\n" - str.gsub!(/#{EOL}/no, "\n") unless @options["Binmode"] - - str.gsub!(/#{IAC}( - [#{IAC}#{AO}#{AYT}#{DM}#{IP}#{NOP}]| - [#{DO}#{DONT}#{WILL}#{WONT}] - [#{OPT_BINARY}-#{OPT_NEW_ENVIRON}#{OPT_EXOPL}]| - #{SB}[^#{IAC}]*#{IAC}#{SE} - )/xno){ - if IAC == $1 # handle escaped IAC characters - IAC - elsif AYT == $1 # respond to "IAC AYT" (are you there) - self.write("nobody here but us pigeons" + EOL) - '' - elsif DO[0] == $1[0] # respond to "IAC DO x" - if OPT_BINARY[0] == $1[1] - @telnet_option["BINARY"] = true - self.write(IAC + WILL + OPT_BINARY) - else - self.write(IAC + WONT + $1[1..1]) - end - '' - elsif DONT[0] == $1[0] # respond to "IAC DON'T x" with "IAC WON'T x" - self.write(IAC + WONT + $1[1..1]) - '' - elsif WILL[0] == $1[0] # respond to "IAC WILL x" - if OPT_BINARY[0] == $1[1] - self.write(IAC + DO + OPT_BINARY) - elsif OPT_ECHO[0] == $1[1] - self.write(IAC + DO + OPT_ECHO) - elsif OPT_SGA[0] == $1[1] - @telnet_option["SGA"] = true - self.write(IAC + DO + OPT_SGA) - else - self.write(IAC + DONT + $1[1..1]) - end - '' - elsif WONT[0] == $1[0] # respond to "IAC WON'T x" - if OPT_ECHO[0] == $1[1] - self.write(IAC + DONT + OPT_ECHO) - elsif OPT_SGA[0] == $1[1] - @telnet_option["SGA"] = false - self.write(IAC + DONT + OPT_SGA) - else - self.write(IAC + DONT + $1[1..1]) - end - '' - else - '' - end - } - - str - end # preprocess - - def waitfor(options) - time_out = @options["Timeout"] - waittime = @options["Waittime"] - - if options.kind_of?(Hash) - prompt = if options.has_key?("Match") - options["Match"] - elsif options.has_key?("Prompt") - options["Prompt"] - elsif options.has_key?("String") - Regexp.new( Regexp.quote(options["String"]) ) - end - time_out = options["Timeout"] if options.has_key?("Timeout") - waittime = options["Waittime"] if options.has_key?("Waittime") - else - prompt = options - end - - if time_out == false - time_out = nil - end - - line = '' - buf = '' - rest = '' - until(prompt === line and not IO::select([@sock], nil, nil, waittime)) - unless IO::select([@sock], nil, nil, time_out) - raise TimeoutError, "timed-out; wait for the next data" - end - begin - c = @sock.sysread(1024 * 1024) - @dumplog.log_dump('<', c) if @options.has_key?("Dump_log") - if @options["Telnetmode"] - if Integer(c.rindex(/#{IAC}#{SE}/no)) < - Integer(c.rindex(/#{IAC}#{SB}/no)) - buf = preprocess(rest + c[0 ... c.rindex(/#{IAC}#{SB}/no)]) - rest = c[c.rindex(/#{IAC}#{SB}/no) .. -1] - elsif pt = c.rindex(/#{IAC}[^#{IAC}#{AO}#{AYT}#{DM}#{IP}#{NOP}]?\z/no) - buf = preprocess(rest + c[0 ... pt]) - rest = c[pt .. -1] - else - buf = preprocess(c) - rest = '' - end - end - @log.print(buf) if @options.has_key?("Output_log") - line.concat(buf) - yield buf if iterator? - rescue EOFError # End of file reached - if line == '' - line = nil - yield nil if iterator? - end - break - end - end - line - end - - def write(string) - length = string.length - while 0 < length - IO::select(nil, [@sock]) - @dumplog.log_dump('>', string[-length..-1]) if @options.has_key?("Dump_log") - length -= @sock.syswrite(string[-length..-1]) - end - end - - def print(string) - str = string.dup + "\n" - - str.gsub!(/#{IAC}/no, IAC + IAC) if @options["Telnetmode"] - - unless @options["Binmode"] - if @telnet_option["BINARY"] and @telnet_option["SGA"] - # IAC WILL SGA IAC DO BIN send EOL --> CR - str.gsub!(/\n/n, CR) - elsif @telnet_option["SGA"] - # IAC WILL SGA send EOL --> CR+NULL - str.gsub!(/\n/n, CR + NULL) - else - # NONE send EOL --> CR+LF - str.gsub!(/\n/n, EOL) - end - end - - self.write(str) - end - - def cmd(options) - match = @options["Prompt"] - time_out = @options["Timeout"] - - if options.kind_of?(Hash) - string = options["String"] - match = options["Match"] if options.has_key?("Match") - time_out = options["Timeout"] if options.has_key?("Timeout") - else - string = options - end - - self.print(string) - if iterator? - waitfor({"Prompt" => match, "Timeout" => time_out}){|c| yield c } - else - waitfor({"Prompt" => match, "Timeout" => time_out}) - end - end - - def login(options, password = nil) - if options.kind_of?(Hash) - username = options["Name"] - password = options["Password"] - else - username = options - end - - if iterator? - line = waitfor(/login[: ]*\z/n){|c| yield c } - if password - line.concat( cmd({"String" => username, - "Match" => /Password[: ]*\z/n}){|c| yield c } ) - line.concat( cmd(password){|c| yield c } ) - else - line.concat( cmd(username){|c| yield c } ) - end - else - line = waitfor(/login[: ]*\z/n) - if password - line.concat( cmd({"String" => username, - "Match" => /Password[: ]*\z/n}) ) - line.concat( cmd(password) ) - else - line.concat( cmd(username) ) - end - end - line - end - -end +Telnet = ::Net::Telnet |