Module: AWS::S3::Client::Validators

Included in:
AWS::S3::Client, AWS::S3::Client
Defined in:
lib/aws/s3/client.rb

Instance Method Summary collapse

Instance Method Details

#dns_compatible_bucket_name?(bucket_name) ⇒ Boolean

Returns true if the given bucket_name is DNS compatible.

DNS compatible bucket names may be accessed like:

http://dns.compat.bucket.name.s3.amazonaws.com/

Whereas non-dns compatible bucket names must place the bucket name in the url path, like:

http://s3.amazonaws.com/dns_incompat_bucket_name/

Returns:

  • (Boolean) —

    Returns true if the given bucket name may be is dns compatible. this bucket n



1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
 
# File 'lib/aws/s3/client.rb', line 1510

def dns_compatible_bucket_name?(bucket_name)
  return false if
    !valid_bucket_name?(bucket_name) or

    # Bucket names should not contain underscores (_)
    bucket_name["_"] or

    # Bucket names should be between 3 and 63 characters long
    bucket_name.size > 63 or

    # Bucket names should not end with a dash
    bucket_name[-1,1] == '-' or

    # Bucket names cannot contain two, adjacent periods
    bucket_name['..'] or

    # Bucket names cannot contain dashes next to periods
    # (e.g., "my-.bucket.com" and "my.-bucket" are invalid)
    (bucket_name['-.'] || bucket_name['.-'])

  true
end

#json_validation_message(obj) ⇒ Object 



1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
 
# File 'lib/aws/s3/client.rb', line 1671

def json_validation_message(obj)
  if obj.respond_to?(:to_str)
    obj = obj.to_str
  elsif obj.respond_to?(:to_json)
    obj = obj.to_json
  end

  error = nil
  begin
    JSON.parse(obj)
  rescue => e
    error = e
  end
  "contains invalid JSON: #{error}" if error
end

#path_style_bucket_name?(bucket_name) ⇒ Boolean

Returns true if the bucket name must be used in the request path instead of as a sub-domain when making requests against S3.

This can be an issue if the bucket name is DNS compatible but contains ‘.’ (periods). These cause the SSL certificate to become invalid when making authenticated requets over SSL to the bucket name. The solution is to send this as a path argument instead.

Returns:

  • (Boolean) —

    Returns true if the bucket name should be used as a path segement instead of dns prefix when making requests against s3.



1547
1548
1549
1550
1551
1552
1553
 
# File 'lib/aws/s3/client.rb', line 1547

def path_style_bucket_name? bucket_name
  if dns_compatible_bucket_name?(bucket_name)
    bucket_name =~ /\./ ? true : false
  else
    true
  end
end

#require_acl!(options) ⇒ Object 



1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
 
# File 'lib/aws/s3/client.rb', line 1610

def require_acl! options
  acl_options = [
    :acl,
    :grant_read,
    :grant_write,
    :grant_read_acp,
    :grant_write_acp,
    :grant_full_control,
    :access_control_policy,
  ]
  unless options.keys.any?{|opt| acl_options.include?(opt) }
    msg = "missing a required ACL option, must provide an ACL " +
          "via :acl, :grant_* or :access_control_policy"
    raise ArgumentError, msg
  end
end

#require_bucket_name!(bucket_name) ⇒ Object 



1571
1572
1573
1574
1575
 
# File 'lib/aws/s3/client.rb', line 1571

def require_bucket_name! bucket_name
  if [nil, ''].include?(bucket_name)
    raise ArgumentError, "bucket_name may not be blank"
  end
end

#require_part_number!(part_number) ⇒ Object 



1647
1648
1649
1650
1651
 
# File 'lib/aws/s3/client.rb', line 1647

def require_part_number! part_number
  validate!("part_number", part_number) do
    "must not be blank" if part_number.to_s.empty?
  end
end

#require_policy!(policy) ⇒ Object 



1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
 
# File 'lib/aws/s3/client.rb', line 1599

def require_policy!(policy)
  validate!('policy', policy) do
    case
    when policy.nil? || policy == ''
      'may not be blank'
    else
      json_validation_message(policy)
    end
  end
end

#require_upload_id!(upload_id) ⇒ Object 



1641
1642
1643
1644
1645
 
# File 'lib/aws/s3/client.rb', line 1641

def require_upload_id!(upload_id)
  validate!("upload_id", upload_id) do
    "must not be blank" if upload_id.to_s.empty?
  end
end

#set_body_stream_and_content_length(request, options) ⇒ Object 



1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
 
# File 'lib/aws/s3/client.rb', line 1627

def set_body_stream_and_content_length request, options

  unless options[:content_length]
    msg = "S3 requires a content-length header, unable to determine "
    msg << "the content length of the data provided, please set "
    msg << ":content_length"
    raise ArgumentError, msg
  end

  request.headers['content-length'] = options[:content_length]
  request.body_stream = options[:data]

end

#valid_bucket_name?(bucket_name) ⇒ Boolean

Returns true if the given bucket name is valid.

Returns:

  • (Boolean) —

    Returns true if the given bucket name is valid.



1491
1492
1493
 
# File 'lib/aws/s3/client.rb', line 1491

def valid_bucket_name?(bucket_name)
  validate_bucket_name!(bucket_name) rescue false
end

#validate!(name, value, &block) ⇒ Object 



1555
1556
1557
1558
1559
1560
 
# File 'lib/aws/s3/client.rb', line 1555

def validate! name, value, &block
  if error_msg = yield
    raise ArgumentError, "#{name} #{error_msg}"
  end
  value
end

#validate_bucket_name!(bucket_name) ⇒ Object

Returns true if the given bucket name is valid. If the name is invalid, an ArgumentError is raised.



1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
 
# File 'lib/aws/s3/client.rb', line 1579

def validate_bucket_name!(bucket_name)
  validate!('bucket_name', bucket_name) do
    case
    when bucket_name.nil? || bucket_name == ''
      'may not be blank'
    when bucket_name !~ /^[a-z0-9._\-]+$/
      'may only contain lowercase letters, numbers, periods (.), ' +
      'underscores (_), and dashes (-)'
    when bucket_name !~ /^[a-z0-9]/
      'must start with a letter or a number'
    when !(3..255).include?(bucket_name.size)
      'must be between 3 and 255 characters long'
    when bucket_name =~ /(\d+\.){3}\d+/
      'must not be formatted like an IP address (e.g., 192.168.5.4)'
    when bucket_name =~ /\n/
      'must not contain a newline character'
    end
  end
end

#validate_key!(key) ⇒ Object 



1562
1563
1564
1565
1566
1567
1568
1569
 
# File 'lib/aws/s3/client.rb', line 1562

def validate_key!(key)
  validate!('key', key) do
    case
    when key.nil? || key == ''
      'may not be blank'
    end
  end
end

#validate_parts!(parts) ⇒ Object 



1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
 
# File 'lib/aws/s3/client.rb', line 1653

def validate_parts!(parts)
  validate!("parts", parts) do
    if !parts.kind_of?(Array)
      "must not be blank"
    elsif parts.empty?
      "must contain at least one entry"
    elsif !parts.all? { |p| p.kind_of?(Hash) }
      "must be an array of hashes"
    elsif !parts.all? { |p| p[:part_number] }
      "must contain part_number for each part"
    elsif !parts.all? { |p| p[:etag] }
      "must contain etag for each part"
    elsif parts.any? { |p| p[:part_number].to_i < 1 }
      "must not have part numbers less than 1"
    end
  end
end