class HPFeeds::Decoder
Public Instance Methods
msg_auth(rand, ident, secret)
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# File lib/hpfeeds/decoder.rb, line 30 def msg_auth(rand, ident, secret) mac = Digest::SHA1.digest(rand + secret) msg_hdr(OP_AUTH, [ident.length].pack("C") + ident + mac) end
msg_publish(ident, chan, msg)
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# File lib/hpfeeds/decoder.rb, line 39 def msg_publish(ident, chan, msg) msg_hdr(OP_PUBLISH, [ident.length].pack("C") + ident + [chan.length].pack("C") + chan + msg) end
msg_subscribe(ident, chan)
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# File lib/hpfeeds/decoder.rb, line 35 def msg_subscribe(ident, chan) msg_hdr(OP_SUBSCRIBE, [ident.length].pack("C") + ident + chan) end
parse_header(header)
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# File lib/hpfeeds/decoder.rb, line 6 def parse_header(header) raise Exception.new("Malformed header") if header.length < 5 len = header[0,4].unpack("l>")[0] op = header[4,1].unpack("C")[0] return op, len end
parse_info(data)
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# File lib/hpfeeds/decoder.rb, line 13 def parse_info(data) len = data[0,1].unpack("C")[0] raise Exception.new("Malformed data") if data.length <= len name = data[1,len] rand = data[(1+len)..-1] return name, rand end
parse_publish(data)
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# File lib/hpfeeds/decoder.rb, line 21 def parse_publish(data) len = data[0,1].unpack("C")[0] name = data[1,len] len2 = data[(1+len),1].ord chan = data[(1+len+1),len2] payload = data[(1+len+1+len2)..-1] return name, chan, payload end
Private Instance Methods
msg_hdr(op, data)
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# File lib/hpfeeds/decoder.rb, line 45 def msg_hdr(op, data) [5+data.length].pack("l>") + [op].pack("C") + data end