Ruby net/ftp代码由于错误而无法PUT文件

Question

我有这个失败的基本代码:

  ftpconfighash = open("#{RAILS_ROOT}/config/ftp.yml") {|f| YAML.load(f) }
  config = ftpconfighash[12345]

  ftp = Net::FTP::new(config["host"])
  ftp.login(config["username"], config["password"])

  dir += "/" unless config["dir"].blank? or config["dir"].ends_with?("/")
  remotename = File.basename(filename)
  remotename = dir + remotename unless dir.blank?

  if File.binary?(filename)
    puts "PUTting binary file #{filename} to #{remotename}"
    ftp.putbinaryfile(filename, remotename)
  else
    puts "PUTting ASCII file #{filename} to #{remotename}"
    ftp.puttextfile(filename, remotename)
  end
  ftp.close

我已经验证我可以ftp到服务器并手动PUT一个文件.我还使用irb逐行遍历代码.我使用XML文件作为测试,因此"ftp.puttextfile"是失败的行.这是错误:

Net::FTPPermError: 500 Invalid PORT Command.

我不明白.我已经确认我确实可以放这个文件,但我不能用这段代码来做.

我将ftp.debug_mode设置为true,这是ftp.puttextfile命令的输出:

put: TYPE A
get: 200 Type set to A.
put: PORT 10,0,1,20,198,170
get: 500 Invalid PORT Command.
Net::FTPPermError: 500 Invalid PORT Command.

from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:243:in `getresp'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:251:in `voidresp'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:274:in `voidcmd'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/monitor.rb:242:in `synchronize'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:272:in `voidcmd'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:287:in `sendport'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:295:in `makeport'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:328:in `transfercmd'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:424:in `retrlines'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/monitor.rb:242:in `synchronize'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:422:in `retrlines'
from /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/net/ftp.rb:631:in `list'
from (irb):42

看起来Ruby正在尝试运行FTP服务器不理解的命令:

PORT 10,0,1,20,198,170

有没有办法压制那个命令,还是我错过了其他的东西？

Answer 1

尝试使用被动ftp:

ftp = Net::FTP::new(config["host"])
ftp.login(config["username"], config["password"])

ftp.passive = true