使用Ruby-FTPS进行加密传输

我正在尝试使用FTPS从服务器获取文件。我能够进行身份验证，但当我尝试列出/获取文件时，我得到一个“521数据连接必须加密”。Net:：FTP模块能够做到这一点吗？我将如何实现它

我将Net:：FTPTLS修改到自己的类中，因为我需要存储一个自签名证书

require 'socket'
require 'openssl'
require 'net/ftp'

module MP
  class FTPS < Net::FTP
    def connect(host, port=FTP_PORT)
      @hostname = host
      super
    end

    def login(user = "anonymous", passwd = nil, cert_file = nil, acct = nil)
      store = OpenSSL::X509::Store.new
      if cert_file == nil
        store.set_default_paths
      else
        certraw = File.read(cert_file)
        cert = OpenSSL::X509::Certificate.new(certraw)
        store.add_cert(cert)
      end
      ctx = OpenSSL::SSL::SSLContext.new('SSLv23')
      ctx.cert_store = store
      ctx.verify_mode = OpenSSL::SSL::VERIFY_PEER
      ctx.key = nil
      ctx.cert = cert
      voidcmd("AUTH TLS")
      @sock = OpenSSL::SSL::SSLSocket.new(@sock, ctx)
      @sock.connect
      #@sock.post_connection_check(@hostname)
      super(user, passwd, acct)
      voidcmd("PBSZ 0")
    end
  end
end

它在nlst上失败

编辑：我尝试将voidcmd（“PROT p”）添加到登录函数的末尾，但它只是挂起了一段时间，然后我最终得到：

IOError: Unsupported record version Unknown-48.48
___BEGIN BACKTRACE___
org/jruby/ext/openssl/SSLSocket.java:564:in `sysread'
/opt/jruby/lib/ruby/gems/1.8/gems/jruby-openssl-0.7.6.1/lib/1.8/openssl/buffering.rb:36:in `fill_rbuff'
/opt/jruby/lib/ruby/gems/1.8/gems/jruby-openssl-0.7.6.1/lib/1.8/openssl/buffering.rb:159:in `eof?'
/opt/jruby/lib/ruby/gems/1.8/gems/jruby-openssl-0.7.6.1/lib/1.8/openssl/buffering.rb:134:in `readline'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:211:in `getline'
    /opt/jruby/lib/ruby/1.8/net/ftp.rb:221:in `getmultiline'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:235:in `getresp'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:251:in `voidresp'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:436:in `retrlines'
/opt/jruby/lib/ruby/1.8/monitor.rb:191:in `mon_synchronize'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:422:in `retrlines'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:612:in `nlst'
... etc

---

我意识到这是一个老问题，但我在研究FTPS ruby gems时偶然发现了这个问题

不，FTP本身不支持FTP

我极力推荐

提供Net:：FTP的子类以支持隐式和显式FTP

---

在过去的一年里，0.1.1版对我来说每天都运行得很好。

请注意，双包ftps是Ruby 2.4，它引入了FTP over SSL支持

IOError: Unsupported record version Unknown-48.48
___BEGIN BACKTRACE___
org/jruby/ext/openssl/SSLSocket.java:564:in `sysread'
/opt/jruby/lib/ruby/gems/1.8/gems/jruby-openssl-0.7.6.1/lib/1.8/openssl/buffering.rb:36:in `fill_rbuff'
/opt/jruby/lib/ruby/gems/1.8/gems/jruby-openssl-0.7.6.1/lib/1.8/openssl/buffering.rb:159:in `eof?'
/opt/jruby/lib/ruby/gems/1.8/gems/jruby-openssl-0.7.6.1/lib/1.8/openssl/buffering.rb:134:in `readline'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:211:in `getline'
    /opt/jruby/lib/ruby/1.8/net/ftp.rb:221:in `getmultiline'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:235:in `getresp'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:251:in `voidresp'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:436:in `retrlines'
/opt/jruby/lib/ruby/1.8/monitor.rb:191:in `mon_synchronize'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:422:in `retrlines'
/opt/jruby/lib/ruby/1.8/net/ftp.rb:612:in `nlst'
... etc