class DEBUGGER__::UI_CDP::WebSocketServer
Public Class Methods
new(s)
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# File debug-1.9.1/lib/debug/server_cdp.rb, line 373 def initialize s @sock = s end
Public Instance Methods
extract_data()
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# File debug-1.9.1/lib/debug/server_cdp.rb, line 420 def extract_data first_group = @sock.getbyte fin = first_group & 0b10000000 != 128 raise 'Unsupported' if fin opcode = first_group & 0b00001111 raise Detach if opcode == 8 raise "Unsupported: #{opcode}" unless opcode == 1 second_group = @sock.getbyte mask = second_group & 0b10000000 == 128 raise 'The client must mask all frames' unless mask payload_len = second_group & 0b01111111 # TODO: Support other payload_lengths if payload_len == 126 payload_len = @sock.gets(2).unpack('n*')[0] end masking_key = [] 4.times { masking_key << @sock.getbyte } unmasked = [] payload_len.times do |n| masked = @sock.getbyte unmasked << (masked ^ masking_key[n % 4]) end msg = unmasked.pack 'c*' show_protocol :>, msg JSON.parse msg end
handshake()
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# File debug-1.9.1/lib/debug/server_cdp.rb, line 377 def handshake req = @sock.readpartial 4096 show_protocol '>', req if req.match /^Sec-WebSocket-Key: (.*)\r\n/ accept = Base64.strict_encode64 Digest::SHA1.digest "#{$1}258EAFA5-E914-47DA-95CA-C5AB0DC85B11" res = "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: #{accept}\r\n\r\n" @sock.print res show_protocol :<, res else "Unknown request: #{req}" end end
send(**msg)
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# File debug-1.9.1/lib/debug/server_cdp.rb, line 391 def send **msg msg = JSON.generate(msg) show_protocol :<, msg frame = Frame.new fin = 0b10000000 opcode = 0b00000001 frame.char fin + opcode mask = 0b00000000 # A server must not mask any frames in a WebSocket Protocol. bytesize = msg.bytesize if bytesize < 126 payload_len = bytesize frame.char mask + payload_len elsif bytesize < 2 ** 16 payload_len = 0b01111110 frame.char mask + payload_len frame.uint16 bytesize elsif bytesize < 2 ** 64 payload_len = 0b01111111 frame.char mask + payload_len frame.ulonglong bytesize else raise 'Bytesize is too big.' end frame << msg @sock.print frame.b end