WIP: DKIM messages are accepted.

src/storage/zone.cr

@@ -463,12 +463,27 @@ class DNSManager::Storage::Zone
 		enum HashAlgorithm
 			SHA256
 		end
+
+		class DKIMProperties
+			include JSON::Serializable
 			property v : Version            = Version::DKIM1
 			property h : HashAlgorithm      = HashAlgorithm::SHA256
 			property k : SignatureAlgorithm = SignatureAlgorithm::RSA
 			property p : String             # public key
-		def initialize(@name, @ttl, @target, @v, @h, @k, @p)
+			property n : String = ""        # notes
+			def initialize(@v, @h, @k, @p, @n)
+			end
+			def to_s(io : IO)
+				io << "v=#{v};h=#{h};k=#{k};p=#{p}"
+				io << ";n=#{n}" unless n == ""
+			end
+		end
+
+		property dkim : DKIMProperties
+
+		def initialize(@name, @ttl, @target, v, h, k, p, n)
 			@rrtype = "DKIM"
+			@dkim = DKIMProperties.new v, h, k, p, n
 		end
 
 		def get_errors : Array(Error)
@@ -488,14 +503,14 @@ class DNSManager::Storage::Zone
 			io << "(#{ "%4d" % @rrid }) "
 			io << "#{ "%30s" % @name} #{ "%6d" % @ttl} DKIM "
 			io << "( "
-			io << split_line "v=#{v};h=#{h};k=#{k};p=#{p}"
+			io << split_line dkim.to_s
 			io << " )"
 		end
 
 		def to_bind9(io : IO)
 			io << "#{@name} #{@ttl} IN TXT "
 			io << "( "
-			io << split_line "v=#{v};h=#{h};k=#{k};p=#{p}"
+			io << split_line dkim.to_s
 			io << " )"
 		end
 	end
@@ -763,8 +778,9 @@ def split_line(line : String) : String
 	slice = Bytes.new(50)
 	lines = ""
 	while rbytes = iostr.read slice
+		break if rbytes == 0
 		lines += '"'
-		lines += String.new slice[0..rbytes]
+		lines += String.new slice[0..rbytes -1]
 		lines += '"'
 		lines += "\n\t"
 	end