Class: HrrRbSftp::Protocol::Version1::Packets::SSH_FXP_LSTAT

Inherits:
Packet show all
Defined in:
lib/hrr_rb_sftp/protocol/version1/packets/007_ssh_fxp_lstat.rb

Overview

This class implements SFTP protocol version 1 SSH_FXP_LSTAT packet type, format, and responder.

Constant Summary collapse

TYPE =

Represents SSH_FXP_LSTAT packet type.

7
FORMAT =

Represents SSH_FXP_LSTAT packet format.

[
  [DataTypes::Byte,   :"type"      ],
  [DataTypes::Uint32, :"request-id"],
  [DataTypes::String, :"path"      ],
]

Instance Attribute Summary

Attributes included from Loggable

#logger

Instance Method Summary collapse

Methods inherited from Packet

#context, #handles, #initialize, #version

Methods inherited from Common::Packets::Packet

#decode, #encode, #initialize

Methods included from Loggable

#log_debug, #log_error, #log_fatal, #log_info, #log_warn

Constructor Details

This class inherits a constructor from HrrRbSftp::Protocol::Version1::Packets::Packet

Instance Method Details

#respond_to(request) ⇒ Hash{Symbol=>Object}

Responds to SSH_FXP_LSTAT request.

Parameters:

  • request (Hash{Symbol=>Object}) —

    SSH_FXP_LSTAT request represented in Hash.

Returns:

  • (Hash{Symbol=>Object}) —

    Response represented in Hash. In case of success, its type is SSH_FXP_ATTRS. In other cases, its type is SSH_FXP_STATUS.



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# File 'lib/hrr_rb_sftp/protocol/version1/packets/007_ssh_fxp_lstat.rb', line 31

def respond_to request
  begin
    log_debug { "File.lstat(#{request[:"path"].inspect})" }
    stat = File.lstat(request[:"path"])
    attrs = Hash.new
    attrs[:"size"]        = stat.size       if stat.size
    attrs[:"uid"]         = stat.uid        if stat.uid
    attrs[:"gid"]         = stat.gid        if stat.gid
    attrs[:"permissions"] = stat.mode       if stat.mode
    attrs[:"atime"]       = stat.atime.to_i if stat.atime
    attrs[:"mtime"]       = stat.mtime.to_i if stat.mtime
    {
      :"type"       => SSH_FXP_ATTRS::TYPE,
      :"request-id" => request[:"request-id"],
      :"attrs"      => attrs,
    }
  rescue Errno::ENOENT => e
    log_debug { e.message }
    {
      :"type"          => SSH_FXP_STATUS::TYPE,
      :"request-id"    => request[:"request-id"],
      :"code"          => SSH_FXP_STATUS::SSH_FX_NO_SUCH_FILE,
      :"error message" => "No such file or directory",
      :"language tag"  => "",
    }
  rescue Errno::EACCES => e
    log_debug { e.message }
    {
      :"type"          => SSH_FXP_STATUS::TYPE,
      :"request-id"    => request[:"request-id"],
      :"code"          => SSH_FXP_STATUS::SSH_FX_PERMISSION_DENIED,
      :"error message" => "Permission denied",
      :"language tag"  => "",
    }
  rescue => e
    log_error { [e.backtrace[0], ": ", e.message, " (", e.class.to_s, ")\n\t", e.backtrace[1..-1].join("\n\t")].join }
    {
      :"type"          => SSH_FXP_STATUS::TYPE,
      :"request-id"    => request[:"request-id"],
      :"code"          => SSH_FXP_STATUS::SSH_FX_FAILURE,
      :"error message" => e.message,
      :"language tag"  => "",
    }
  end
end