Class: Zonesync::Zonefile

Inherits:
Object
  • Object
show all
Defined in:
lib/zonesync/zonefile.rb

Constant Summary collapse

DUMMY_SOA = 
"@ 1 SOA example.com example.com ( 2000010101 1 1 1 1 )\n"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(records, origin:) ⇒ Zonefile

Returns a new instance of Zonefile.



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# File 'lib/zonesync/zonefile.rb', line 37

def initialize(records, origin:)
  @records = records
  @origin = origin
end

Instance Attribute Details

#origin ⇒ Object (readonly)

Returns the value of attribute origin.



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# File 'lib/zonesync/zonefile.rb', line 43

def origin
  @origin
end

#records ⇒ Object (readonly)

Returns the value of attribute records.



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# File 'lib/zonesync/zonefile.rb', line 42

def records
  @records
end

Class Method Details

.ensure_soa(zone_string) ⇒ Object

Inserts a dummy SOA record if needed for parsing. Returns [modified_content, insertion_offset] where insertion_offset is nil if no SOA was added, or the byte position and length of the inserted SOA.



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# File 'lib/zonesync/zonefile.rb', line 12

def self.ensure_soa(zone_string)
  if zone_string =~ /\sSOA\s/
    [zone_string, nil]
  else
    content = zone_string.dup
    match = content.match(/\n([^$])/)
    if match
      insertion_point = match.begin(0) + 1
      content.sub!(/\n([^$])/, "\n#{DUMMY_SOA}\\1")
      [content, { at: insertion_point, length: DUMMY_SOA.length }]
    else
      [content, nil]
    end
  end
end

.load(zone_string) ⇒ Object 



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# File 'lib/zonesync/zonefile.rb', line 28

def self.load(zone_string)
  content, _ = ensure_soa(zone_string)
  zone = Parser.parse(content)
  records = zone.records.map do |dns_zonefile_record|
    Zonesync::Record.from_dns_zonefile_record(dns_zonefile_record)
  end
  new(records, origin: zone.origin)
end