Class: Net::SFTP::Protocol::V04::Attributes

Inherits:
Net::SFTP::Protocol::V01::Attributes show all
Defined in:
lib/net/sftp/protocol/04/attributes.rb

Overview

A class representing the attributes of a file or directory on the server. It may be used to specify new attributes, or to query existing attributes. This particular class is specific to versions 4 and 5 of the SFTP protocol.

To specify new attributes, just pass a hash as the argument to the constructor. The following keys are supported:

  • :type

    the type of the item (integer, one of the T_ constants)

  • :size

    the size of the item (integer)

  • :uid

    the user-id that owns the file (integer)

  • :gid

    the group-id that owns the file (integer)

  • :owner

    the name of the user that owns the file (string)

  • :group

    the name of the group that owns the file (string)

  • :permissions

    the permissions on the file (integer, e.g. 0755)

  • :atime

    the access time of the file (integer, seconds since epoch)

  • :atime_nseconds

    the nanosecond component of atime (integer)

  • :createtime

    the time at which the file was created (integer, seconds since epoch)

  • :createtime_nseconds

    the nanosecond component of createtime (integer)

  • :mtime

    the modification time of the file (integer, seconds since epoch)

  • :mtime_nseconds

    the nanosecond component of mtime (integer)

  • :acl

    an array of ACL entries for the item

  • :extended

    a hash of name/value pairs identifying extended info

Likewise, when the server sends an Attributes object, all of the above attributes are exposed as methods (though not all will be set with non-nil values from the server).

Direct Known Subclasses

Net::SFTP::Protocol::V06::Attributes

Defined Under Namespace

Classes: ACL

Constant Summary collapse

F_ACCESSTIME = 
0x00000008
F_CREATETIME = 
0x00000010
F_MODIFYTIME = 
0x00000020
F_ACL = 
0x00000040
F_OWNERGROUP = 
0x00000080
F_SUBSECOND_TIMES = 
0x00000100

Constants inherited from Net::SFTP::Protocol::V01::Attributes

Net::SFTP::Protocol::V01::Attributes::F_ACMODTIME, Net::SFTP::Protocol::V01::Attributes::F_EXTENDED, Net::SFTP::Protocol::V01::Attributes::F_PERMISSIONS, Net::SFTP::Protocol::V01::Attributes::F_SIZE, Net::SFTP::Protocol::V01::Attributes::F_UIDGID, Net::SFTP::Protocol::V01::Attributes::T_BLOCK_DEVICE, Net::SFTP::Protocol::V01::Attributes::T_CHAR_DEVICE, Net::SFTP::Protocol::V01::Attributes::T_DIRECTORY, Net::SFTP::Protocol::V01::Attributes::T_FIFO, Net::SFTP::Protocol::V01::Attributes::T_REGULAR, Net::SFTP::Protocol::V01::Attributes::T_SOCKET, Net::SFTP::Protocol::V01::Attributes::T_SPECIAL, Net::SFTP::Protocol::V01::Attributes::T_SYMLINK, Net::SFTP::Protocol::V01::Attributes::T_UNKNOWN

Instance Attribute Summary collapse

Attributes inherited from Net::SFTP::Protocol::V01::Attributes

#atime, #attributes, #extended, #gid, #mtime, #permissions, #size, #uid

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Net::SFTP::Protocol::V01::Attributes

attr_accessor, attr_writer, #directory?, #file?, from_buffer, #group, #owner, #symbolic_type, #symlink?, #to_s

Constructor Details

#initialize(attributes = {}) ⇒ Attributes

Create a new Attributes instance with the given attributes. The following keys are supported:

  • :type

    the type of the item (integer, one of the T_ constants)

  • :size

    the size of the item (integer)

  • :uid

    the user-id that owns the file (integer)

  • :gid

    the group-id that owns the file (integer)

  • :owner

    the name of the user that owns the file (string)

  • :group

    the name of the group that owns the file (string)

  • :permissions

    the permissions on the file (integer, e.g. 0755)

  • :atime

    the access time of the file (integer, seconds since epoch)

  • :atime_nseconds

    the nanosecond component of atime (integer)

  • :createtime

    the time at which the file was created (integer, seconds since epoch)

  • :createtime_nseconds

    the nanosecond component of createtime (integer)

  • :mtime

    the modification time of the file (integer, seconds since epoch)

  • :mtime_nseconds

    the nanosecond component of mtime (integer)

  • :acl

    an array of ACL entries for the item

  • :extended

    a hash of name/value pairs identifying extended info

All of them default to nil if omitted, except for type, which defaults to T_REGULAR.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 124

def initialize(attributes={})
  super
  attributes[:type] ||= T_REGULAR
end

Instance Attribute Details

#acl ⇒ Object

The array of access control entries for this item.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 101

def acl
  @acl
end

#atime_nseconds ⇒ Object

The nanosecond component of the access time.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 89

def atime_nseconds
  @atime_nseconds
end

#createtime ⇒ Object

The creation time of the remote item, in seconds since the epoch.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 92

def createtime
  @createtime
end

#createtime_nseconds ⇒ Object

The nanosecond component of the creation time.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 95

def createtime_nseconds
  @createtime_nseconds
end

#group=(value) ⇒ Object (writeonly)

The group of the item on the remote server, as a string.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 86

def group=(value)
  @group = value
end

#mtime_nseconds ⇒ Object

The nanosecond component of the modification time.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 98

def mtime_nseconds
  @mtime_nseconds
end

#owner=(value) ⇒ Object (writeonly)

The owner of the item on the remote server, as a string.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 83

def owner=(value)
  @owner = value
end

#type ⇒ Object

The type of the item on the remote server. Must be one of the T_* constants.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 80

def type
  @type
end

Class Method Details

.elements ⇒ Object

The list of supported elements in the attributes structure as defined by v4 of the sftp protocol.



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# File 'lib/net/sftp/protocol/04/attributes.rb', line 48

def elements #:nodoc:
  @elements ||= [
    [:type,                :byte,    0],
    [:size,                :int64,   V01::Attributes::F_SIZE],
    [:owner,               :string,  F_OWNERGROUP],
    [:group,               :string,  F_OWNERGROUP],
    [:permissions,         :long,    V01::Attributes::F_PERMISSIONS],
    [:atime,               :int64,   F_ACCESSTIME],
    [:atime_nseconds,      :long,    F_ACCESSTIME | F_SUBSECOND_TIMES],
    [:createtime,          :int64,   F_CREATETIME],
    [:createtime_nseconds, :long,    F_CREATETIME | F_SUBSECOND_TIMES],
    [:mtime,               :int64,   F_MODIFYTIME],
    [:mtime_nseconds,      :long,    F_MODIFYTIME | F_SUBSECOND_TIMES],
    [:acl,                 :special, F_ACL],
    [:extended,            :special, V01::Attributes::F_EXTENDED]
  ]
end