/usr/lib/ruby/1.8/net/ftp.rb is in libruby1.8 1.8.7.352-2ubuntu1.6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 | #
# = net/ftp.rb - FTP Client Library
#
# Written by Shugo Maeda <shugo@ruby-lang.org>.
#
# Documentation by Gavin Sinclair, sourced from "Programming Ruby" (Hunt/Thomas)
# and "Ruby In a Nutshell" (Matsumoto), used with permission.
#
# This library is distributed under the terms of the Ruby license.
# You can freely distribute/modify this library.
#
# It is included in the Ruby standard library.
#
# See the Net::FTP class for an overview.
#
require "socket"
require "monitor"
module Net
# :stopdoc:
class FTPError < StandardError; end
class FTPReplyError < FTPError; end
class FTPTempError < FTPError; end
class FTPPermError < FTPError; end
class FTPProtoError < FTPError; end
# :startdoc:
#
# This class implements the File Transfer Protocol. If you have used a
# command-line FTP program, and are familiar with the commands, you will be
# able to use this class easily. Some extra features are included to take
# advantage of Ruby's style and strengths.
#
# == Example
#
# require 'net/ftp'
#
# === Example 1
#
# ftp = Net::FTP.new('ftp.netlab.co.jp')
# ftp.login
# files = ftp.chdir('pub/lang/ruby/contrib')
# files = ftp.list('n*')
# ftp.getbinaryfile('nif.rb-0.91.gz', 'nif.gz', 1024)
# ftp.close
#
# === Example 2
#
# Net::FTP.open('ftp.netlab.co.jp') do |ftp|
# ftp.login
# files = ftp.chdir('pub/lang/ruby/contrib')
# files = ftp.list('n*')
# ftp.getbinaryfile('nif.rb-0.91.gz', 'nif.gz', 1024)
# end
#
# == Major Methods
#
# The following are the methods most likely to be useful to users:
# - FTP.open
# - #getbinaryfile
# - #gettextfile
# - #putbinaryfile
# - #puttextfile
# - #chdir
# - #nlst
# - #size
# - #rename
# - #delete
#
class FTP
include MonitorMixin
# :stopdoc:
FTP_PORT = 21
CRLF = "\r\n"
DEFAULT_BLOCKSIZE = 4096
# :startdoc:
# When +true+, transfers are performed in binary mode. Default: +true+.
attr_accessor :binary
# When +true+, the connection is in passive mode. Default: +false+.
attr_accessor :passive
# When +true+, all traffic to and from the server is written
# to +$stdout+. Default: +false+.
attr_accessor :debug_mode
# Sets or retrieves the +resume+ status, which decides whether incomplete
# transfers are resumed or restarted. Default: +false+.
attr_accessor :resume
# The server's welcome message.
attr_reader :welcome
# The server's last response code.
attr_reader :last_response_code
alias lastresp last_response_code
# The server's last response.
attr_reader :last_response
#
# A synonym for <tt>FTP.new</tt>, but with a mandatory host parameter.
#
# If a block is given, it is passed the +FTP+ object, which will be closed
# when the block finishes, or when an exception is raised.
#
def FTP.open(host, user = nil, passwd = nil, acct = nil)
if block_given?
ftp = new(host, user, passwd, acct)
begin
yield ftp
ensure
ftp.close
end
else
new(host, user, passwd, acct)
end
end
#
# Creates and returns a new +FTP+ object. If a +host+ is given, a connection
# is made. Additionally, if the +user+ is given, the given user name,
# password, and (optionally) account are used to log in. See #login.
#
def initialize(host = nil, user = nil, passwd = nil, acct = nil)
super()
@binary = true
@passive = false
@debug_mode = false
@resume = false
if host
connect(host)
if user
login(user, passwd, acct)
end
end
end
# Obsolete
def return_code
$stderr.puts("warning: Net::FTP#return_code is obsolete and do nothing")
return "\n"
end
# Obsolete
def return_code=(s)
$stderr.puts("warning: Net::FTP#return_code= is obsolete and do nothing")
end
def open_socket(host, port)
if defined? SOCKSSocket and ENV["SOCKS_SERVER"]
@passive = true
return SOCKSSocket.open(host, port)
else
return TCPSocket.open(host, port)
end
end
private :open_socket
#
# Establishes an FTP connection to host, optionally overriding the default
# port. If the environment variable +SOCKS_SERVER+ is set, sets up the
# connection through a SOCKS proxy. Raises an exception (typically
# <tt>Errno::ECONNREFUSED</tt>) if the connection cannot be established.
#
def connect(host, port = FTP_PORT)
if @debug_mode
print "connect: ", host, ", ", port, "\n"
end
synchronize do
@sock = open_socket(host, port)
voidresp
end
end
#
# WRITEME or make private
#
def set_socket(sock, get_greeting = true)
synchronize do
@sock = sock
if get_greeting
voidresp
end
end
end
def sanitize(s)
if s =~ /^PASS /i
return s[0, 5] + "*" * (s.length - 5)
else
return s
end
end
private :sanitize
def putline(line)
if @debug_mode
print "put: ", sanitize(line), "\n"
end
line = line + CRLF
@sock.write(line)
end
private :putline
def getline
line = @sock.readline # if get EOF, raise EOFError
line.sub!(/(\r\n|\n|\r)\z/n, "")
if @debug_mode
print "get: ", sanitize(line), "\n"
end
return line
end
private :getline
def getmultiline
line = getline
buff = line
if line[3] == ?-
code = line[0, 3]
begin
line = getline
buff << "\n" << line
end until line[0, 3] == code and line[3] != ?-
end
return buff << "\n"
end
private :getmultiline
def getresp
@last_response = getmultiline
@last_response_code = @last_response[0, 3]
case @last_response_code
when /\A[123]/
return @last_response
when /\A4/
raise FTPTempError, @last_response
when /\A5/
raise FTPPermError, @last_response
else
raise FTPProtoError, @last_response
end
end
private :getresp
def voidresp
resp = getresp
if resp[0] != ?2
raise FTPReplyError, resp
end
end
private :voidresp
#
# Sends a command and returns the response.
#
def sendcmd(cmd)
synchronize do
putline(cmd)
return getresp
end
end
#
# Sends a command and expect a response beginning with '2'.
#
def voidcmd(cmd)
synchronize do
putline(cmd)
voidresp
end
end
def sendport(host, port)
af = (@sock.peeraddr)[0]
if af == "AF_INET"
cmd = "PORT " + (host.split(".") + port.divmod(256)).join(",")
elsif af == "AF_INET6"
cmd = sprintf("EPRT |2|%s|%d|", host, port)
else
raise FTPProtoError, host
end
voidcmd(cmd)
end
private :sendport
def makeport
sock = TCPServer.open(@sock.addr[3], 0)
port = sock.addr[1]
host = sock.addr[3]
resp = sendport(host, port)
return sock
end
private :makeport
def makepasv
if @sock.peeraddr[0] == "AF_INET"
host, port = parse227(sendcmd("PASV"))
else
host, port = parse229(sendcmd("EPSV"))
# host, port = parse228(sendcmd("LPSV"))
end
return host, port
end
private :makepasv
def transfercmd(cmd, rest_offset = nil)
if @passive
host, port = makepasv
conn = open_socket(host, port)
if @resume and rest_offset
resp = sendcmd("REST " + rest_offset.to_s)
if resp[0] != ?3
raise FTPReplyError, resp
end
end
resp = sendcmd(cmd)
# skip 2XX for some ftp servers
resp = getresp if resp[0] == ?2
if resp[0] != ?1
raise FTPReplyError, resp
end
else
sock = makeport
if @resume and rest_offset
resp = sendcmd("REST " + rest_offset.to_s)
if resp[0] != ?3
raise FTPReplyError, resp
end
end
resp = sendcmd(cmd)
# skip 2XX for some ftp servers
resp = getresp if resp[0] == ?2
if resp[0] != ?1
raise FTPReplyError, resp
end
conn = sock.accept
sock.close
end
return conn
end
private :transfercmd
def getaddress
thishost = Socket.gethostname rescue ""
if not thishost.index(".")
thishost = Socket.gethostbyname(thishost)[0] rescue ""
end
if ENV.has_key?("LOGNAME")
realuser = ENV["LOGNAME"]
elsif ENV.has_key?("USER")
realuser = ENV["USER"]
else
realuser = "anonymous"
end
return realuser + "@" + thishost
end
private :getaddress
#
# Logs in to the remote host. The session must have been previously
# connected. If +user+ is the string "anonymous" and the +password+ is
# +nil+, a password of <tt>user@host</tt> is synthesized. If the +acct+
# parameter is not +nil+, an FTP ACCT command is sent following the
# successful login. Raises an exception on error (typically
# <tt>Net::FTPPermError</tt>).
#
def login(user = "anonymous", passwd = nil, acct = nil)
if user == "anonymous" and passwd == nil
passwd = getaddress
end
resp = ""
synchronize do
resp = sendcmd('USER ' + user)
if resp[0] == ?3
raise FTPReplyError, resp if passwd.nil?
resp = sendcmd('PASS ' + passwd)
end
if resp[0] == ?3
raise FTPReplyError, resp if acct.nil?
resp = sendcmd('ACCT ' + acct)
end
end
if resp[0] != ?2
raise FTPReplyError, resp
end
@welcome = resp
end
#
# Puts the connection into binary (image) mode, issues the given command,
# and fetches the data returned, passing it to the associated block in
# chunks of +blocksize+ characters. Note that +cmd+ is a server command
# (such as "RETR myfile").
#
def retrbinary(cmd, blocksize, rest_offset = nil) # :yield: data
synchronize do
voidcmd("TYPE I")
conn = transfercmd(cmd, rest_offset)
loop do
data = conn.read(blocksize)
break if data == nil
yield(data)
end
conn.close
voidresp
end
end
#
# Puts the connection into ASCII (text) mode, issues the given command, and
# passes the resulting data, one line at a time, to the associated block. If
# no block is given, prints the lines. Note that +cmd+ is a server command
# (such as "RETR myfile").
#
def retrlines(cmd) # :yield: line
synchronize do
voidcmd("TYPE A")
conn = transfercmd(cmd)
loop do
line = conn.gets
break if line == nil
if line[-2, 2] == CRLF
line = line[0 .. -3]
elsif line[-1] == ?\n
line = line[0 .. -2]
end
yield(line)
end
conn.close
voidresp
end
end
#
# Puts the connection into binary (image) mode, issues the given server-side
# command (such as "STOR myfile"), and sends the contents of the file named
# +file+ to the server. If the optional block is given, it also passes it
# the data, in chunks of +blocksize+ characters.
#
def storbinary(cmd, file, blocksize, rest_offset = nil, &block) # :yield: data
if rest_offset
file.seek(rest_offset, IO::SEEK_SET)
end
synchronize do
voidcmd("TYPE I")
conn = transfercmd(cmd, rest_offset)
loop do
buf = file.read(blocksize)
break if buf == nil
conn.write(buf)
yield(buf) if block
end
conn.close
voidresp
end
end
#
# Puts the connection into ASCII (text) mode, issues the given server-side
# command (such as "STOR myfile"), and sends the contents of the file
# named +file+ to the server, one line at a time. If the optional block is
# given, it also passes it the lines.
#
def storlines(cmd, file, &block) # :yield: line
synchronize do
voidcmd("TYPE A")
conn = transfercmd(cmd)
loop do
buf = file.gets
break if buf == nil
if buf[-2, 2] != CRLF
buf = buf.chomp + CRLF
end
conn.write(buf)
yield(buf) if block
end
conn.close
voidresp
end
end
#
# Retrieves +remotefile+ in binary mode, storing the result in +localfile+.
# If a block is supplied, it is passed the retrieved data in +blocksize+
# chunks.
#
def getbinaryfile(remotefile, localfile = File.basename(remotefile),
blocksize = DEFAULT_BLOCKSIZE, &block) # :yield: data
if @resume
rest_offset = File.size?(localfile)
f = open(localfile, "a")
else
rest_offset = nil
f = open(localfile, "w")
end
begin
f.binmode
retrbinary("RETR " + remotefile, blocksize, rest_offset) do |data|
f.write(data)
yield(data) if block
end
ensure
f.close
end
end
#
# Retrieves +remotefile+ in ASCII (text) mode, storing the result in
# +localfile+. If a block is supplied, it is passed the retrieved data one
# line at a time.
#
def gettextfile(remotefile, localfile = File.basename(remotefile), &block) # :yield: line
f = open(localfile, "w")
begin
retrlines("RETR " + remotefile) do |line|
f.puts(line)
yield(line) if block
end
ensure
f.close
end
end
#
# Retrieves +remotefile+ in whatever mode the session is set (text or
# binary). See #gettextfile and #getbinaryfile.
#
def get(remotefile, localfile = File.basename(remotefile),
blocksize = DEFAULT_BLOCKSIZE, &block) # :yield: data
unless @binary
gettextfile(remotefile, localfile, &block)
else
getbinaryfile(remotefile, localfile, blocksize, &block)
end
end
#
# Transfers +localfile+ to the server in binary mode, storing the result in
# +remotefile+. If a block is supplied, calls it, passing in the transmitted
# data in +blocksize+ chunks.
#
def putbinaryfile(localfile, remotefile = File.basename(localfile),
blocksize = DEFAULT_BLOCKSIZE, &block) # :yield: data
if @resume
begin
rest_offset = size(remotefile)
rescue Net::FTPPermError
rest_offset = nil
end
else
rest_offset = nil
end
f = open(localfile)
begin
f.binmode
storbinary("STOR " + remotefile, f, blocksize, rest_offset, &block)
ensure
f.close
end
end
#
# Transfers +localfile+ to the server in ASCII (text) mode, storing the result
# in +remotefile+. If callback or an associated block is supplied, calls it,
# passing in the transmitted data one line at a time.
#
def puttextfile(localfile, remotefile = File.basename(localfile), &block) # :yield: line
f = open(localfile)
begin
storlines("STOR " + remotefile, f, &block)
ensure
f.close
end
end
#
# Transfers +localfile+ to the server in whatever mode the session is set
# (text or binary). See #puttextfile and #putbinaryfile.
#
def put(localfile, remotefile = File.basename(localfile),
blocksize = DEFAULT_BLOCKSIZE, &block)
unless @binary
puttextfile(localfile, remotefile, &block)
else
putbinaryfile(localfile, remotefile, blocksize, &block)
end
end
#
# Sends the ACCT command. TODO: more info.
#
def acct(account)
cmd = "ACCT " + account
voidcmd(cmd)
end
#
# Returns an array of filenames in the remote directory.
#
def nlst(dir = nil)
cmd = "NLST"
if dir
cmd = cmd + " " + dir
end
files = []
retrlines(cmd) do |line|
files.push(line)
end
return files
end
#
# Returns an array of file information in the directory (the output is like
# `ls -l`). If a block is given, it iterates through the listing.
#
def list(*args, &block) # :yield: line
cmd = "LIST"
args.each do |arg|
cmd = cmd + " " + arg
end
if block
retrlines(cmd, &block)
else
lines = []
retrlines(cmd) do |line|
lines << line
end
return lines
end
end
alias ls list
alias dir list
#
# Renames a file on the server.
#
def rename(fromname, toname)
resp = sendcmd("RNFR " + fromname)
if resp[0] != ?3
raise FTPReplyError, resp
end
voidcmd("RNTO " + toname)
end
#
# Deletes a file on the server.
#
def delete(filename)
resp = sendcmd("DELE " + filename)
if resp[0, 3] == "250"
return
elsif resp[0] == ?5
raise FTPPermError, resp
else
raise FTPReplyError, resp
end
end
#
# Changes the (remote) directory.
#
def chdir(dirname)
if dirname == ".."
begin
voidcmd("CDUP")
return
rescue FTPPermError => e
if e.message[0, 3] != "500"
raise e
end
end
end
cmd = "CWD " + dirname
voidcmd(cmd)
end
#
# Returns the size of the given (remote) filename.
#
def size(filename)
voidcmd("TYPE I")
resp = sendcmd("SIZE " + filename)
if resp[0, 3] != "213"
raise FTPReplyError, resp
end
return resp[3..-1].strip.to_i
end
MDTM_REGEXP = /^(\d\d\d\d)(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)/ # :nodoc:
#
# Returns the last modification time of the (remote) file. If +local+ is
# +true+, it is returned as a local time, otherwise it's a UTC time.
#
def mtime(filename, local = false)
str = mdtm(filename)
ary = str.scan(MDTM_REGEXP)[0].collect {|i| i.to_i}
return local ? Time.local(*ary) : Time.gm(*ary)
end
#
# Creates a remote directory.
#
def mkdir(dirname)
resp = sendcmd("MKD " + dirname)
return parse257(resp)
end
#
# Removes a remote directory.
#
def rmdir(dirname)
voidcmd("RMD " + dirname)
end
#
# Returns the current remote directory.
#
def pwd
resp = sendcmd("PWD")
return parse257(resp)
end
alias getdir pwd
#
# Returns system information.
#
def system
resp = sendcmd("SYST")
if resp[0, 3] != "215"
raise FTPReplyError, resp
end
return resp[4 .. -1]
end
#
# Aborts the previous command (ABOR command).
#
def abort
line = "ABOR" + CRLF
print "put: ABOR\n" if @debug_mode
@sock.send(line, Socket::MSG_OOB)
resp = getmultiline
unless ["426", "226", "225"].include?(resp[0, 3])
raise FTPProtoError, resp
end
return resp
end
#
# Returns the status (STAT command).
#
def status
line = "STAT" + CRLF
print "put: STAT\n" if @debug_mode
@sock.send(line, Socket::MSG_OOB)
return getresp
end
#
# Issues the MDTM command. TODO: more info.
#
def mdtm(filename)
resp = sendcmd("MDTM " + filename)
if resp[0, 3] == "213"
return resp[3 .. -1].strip
end
end
#
# Issues the HELP command.
#
def help(arg = nil)
cmd = "HELP"
if arg
cmd = cmd + " " + arg
end
sendcmd(cmd)
end
#
# Exits the FTP session.
#
def quit
voidcmd("QUIT")
end
#
# Issues a NOOP command.
#
def noop
voidcmd("NOOP")
end
#
# Issues a SITE command.
#
def site(arg)
cmd = "SITE " + arg
voidcmd(cmd)
end
#
# Closes the connection. Further operations are impossible until you open
# a new connection with #connect.
#
def close
@sock.close if @sock and not @sock.closed?
end
#
# Returns +true+ iff the connection is closed.
#
def closed?
@sock == nil or @sock.closed?
end
def parse227(resp)
if resp[0, 3] != "227"
raise FTPReplyError, resp
end
left = resp.index("(")
right = resp.index(")")
if left == nil or right == nil
raise FTPProtoError, resp
end
numbers = resp[left + 1 .. right - 1].split(",")
if numbers.length != 6
raise FTPProtoError, resp
end
host = numbers[0, 4].join(".")
port = (numbers[4].to_i << 8) + numbers[5].to_i
return host, port
end
private :parse227
def parse228(resp)
if resp[0, 3] != "228"
raise FTPReplyError, resp
end
left = resp.index("(")
right = resp.index(")")
if left == nil or right == nil
raise FTPProtoError, resp
end
numbers = resp[left + 1 .. right - 1].split(",")
if numbers[0] == "4"
if numbers.length != 9 || numbers[1] != "4" || numbers[2 + 4] != "2"
raise FTPProtoError, resp
end
host = numbers[2, 4].join(".")
port = (numbers[7].to_i << 8) + numbers[8].to_i
elsif numbers[0] == "6"
if numbers.length != 21 || numbers[1] != "16" || numbers[2 + 16] != "2"
raise FTPProtoError, resp
end
v6 = ["", "", "", "", "", "", "", ""]
for i in 0 .. 7
v6[i] = sprintf("%02x%02x", numbers[(i * 2) + 2].to_i,
numbers[(i * 2) + 3].to_i)
end
host = v6[0, 8].join(":")
port = (numbers[19].to_i << 8) + numbers[20].to_i
end
return host, port
end
private :parse228
def parse229(resp)
if resp[0, 3] != "229"
raise FTPReplyError, resp
end
left = resp.index("(")
right = resp.index(")")
if left == nil or right == nil
raise FTPProtoError, resp
end
numbers = resp[left + 1 .. right - 1].split(resp[left + 1, 1])
if numbers.length != 4
raise FTPProtoError, resp
end
port = numbers[3].to_i
host = (@sock.peeraddr())[3]
return host, port
end
private :parse229
def parse257(resp)
if resp[0, 3] != "257"
raise FTPReplyError, resp
end
if resp[3, 2] != ' "'
return ""
end
dirname = ""
i = 5
n = resp.length
while i < n
c = resp[i, 1]
i = i + 1
if c == '"'
if i > n or resp[i, 1] != '"'
break
end
i = i + 1
end
dirname = dirname + c
end
return dirname
end
private :parse257
end
end
# Documentation comments:
# - sourced from pickaxe and nutshell, with improvements (hopefully)
# - three methods should be private (search WRITEME)
# - two methods need more information (search TODO)
|