119 lines
2.6 KiB
Ruby
119 lines
2.6 KiB
Ruby
require 'symbiosis/domain/dkim'
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module Symbiosis
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class Domain
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#
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# This now returns false as the service has been withdrawn.
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#
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def uses_bytemark_antispam?
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false
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end
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#
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# Returns true if a domain has SPF enabled.
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#
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def spf_enabled?
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spf_record.is_a?(String)
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end
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alias has_spf? spf_enabled?
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def spf_record
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spf = get_param("spf", self.config_dir)
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spf = "v=spf1 +a +mx ?all" if spf === true
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if spf.is_a?(String)
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# We encode just the first line, and remove any whitespace from the ends.
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line = spf.split($/).first.strip
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tinydns_encode(line)
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else
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nil
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end
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end
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def srv_record_for(priority, weight, port, target)
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data = ([priority, weight, port].pack("nnn").bytes.to_a +
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target.split(".").collect{|x| [x.length, x]} +
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[ 0 ]).flatten
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data.collect{|x| tinydns_encode(x)}.join
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end
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#
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# Returns the DNS TTL as defined in config/ttl, or 300 if no TTL has been set.
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#
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def ttl
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ttl = get_param("ttl", self.config_dir)
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if ttl.is_a?(String) and ttl =~ /([0-9]+)/
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begin
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ttl = Integer($1)
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rescue ArgumentError
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ttl = 300
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end
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else
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ttl = 300
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end
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if ttl < 60
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ttl = 60
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elsif ttl > 86400
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ttl = 86400
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end
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ttl
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end
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def dmarc_enabled?
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dmarc_record.is_a?(String)
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end
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alias has_dmarc? dmarc_enabled?
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#
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# Returns a DMARC record, based on various arguments in config/dmarc
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#
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def dmarc_record
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raw_dmarc = get_param("dmarc", self.config_dir)
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return nil unless raw_dmarc
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return 'v=DMARC1; p=quarantine; sp=none' if true == raw_dmarc
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#
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# Make sure we're not matching against things other than strings.
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#
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return nil unless raw_dmarc.is_a?(String)
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if raw_dmarc =~ /^(v=DMARC\d(;\s+\S+=[^;]+)+)/
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# Take this as a raw record
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return tinydns_encode($1)
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end
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puts "\tThe DMARC record looks wrong: #{raw_dmarc.inspect}" if $VERBOSE
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return nil
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end
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private
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#
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# Encodes a given string into a format suitable for consupmtion by TinyDNS
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#
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def tinydns_encode(s)
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s = [s].pack("c") if (s.is_a?(Integer) and 255 > s)
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s.chars.collect{|c| c =~ /[\w .=+;?-]/ ? c : c.bytes.collect{|b| "\\%03o" % b}.join}.join
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end
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#
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# Decodes a given string from a format suitable for consupmtion by TinyDNS
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#
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def tinydns_decode(s)
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s.gsub(/(?:\\([0-7]{3,3})|.)/){|r| $1 ? [$1.oct].pack("c*") : r}
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end
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end
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end
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