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Original file line number | Diff line number | Diff line change |
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@@ -1,105 +1,63 @@ | ||
require 'forwardable' | ||
require 'websocket_parser' | ||
require 'websocket/driver' | ||
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module Reel | ||
class WebSocket | ||
extend Forwardable | ||
include ConnectionMixin | ||
include RequestMixin | ||
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attr_reader :socket | ||
def_delegators :@socket, :addr, :peeraddr | ||
NO_PREFIX_HEADERS = %w(CONTENT_TYPE CONTENT_LENGTH).freeze | ||
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def initialize(info, socket) | ||
@request_info = info | ||
@socket = socket | ||
attr_reader :env, :url, :socket | ||
def_delegators :driver, :text, :binary, :ping, :close | ||
def_delegators :socket, :write | ||
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handshake = ::WebSocket::ClientHandshake.new(:get, url, headers) | ||
def initialize(connection) | ||
@connection = connection | ||
@socket = @connection.socket | ||
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if handshake.valid? | ||
response = handshake.accept_response | ||
response.render(socket) | ||
else | ||
error = handshake.errors.first | ||
@connection.detach | ||
@connection.hijack_socket | ||
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response = Response.new(400) | ||
response.reason = handshake.errors.first | ||
response.render(@socket) | ||
driver.on(:close) { close } | ||
driver.on(:connect) { driver.start } | ||
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raise HandshakeError, "error during handshake: #{error}" | ||
end | ||
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@parser = ::WebSocket::Parser.new | ||
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@parser.on_close do |status, reason| | ||
# According to the spec the server must respond with another | ||
# close message before closing the connection | ||
@socket << ::WebSocket::Message.close.to_data | ||
close | ||
end | ||
yield driver if block_given? | ||
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@parser.on_ping do |payload| | ||
@socket << ::WebSocket::Message.pong(payload).to_data | ||
end | ||
start_listening | ||
end | ||
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[:next_message, :next_messages, :on_message, :on_error, :on_close, :on_ping, :on_pong].each do |meth| | ||
define_method meth do |&proc| | ||
@parser.send __method__, &proc | ||
end | ||
def close | ||
socket.close unless socket.closed? | ||
end | ||
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def read_every(n, unit = :s) | ||
cancel_timer! # only one timer allowed per stream | ||
seconds = case unit.to_s | ||
when /\Am/ | ||
n * 60 | ||
when /\Ah/ | ||
n * 3600 | ||
else | ||
n | ||
def start_listening | ||
loop do | ||
break if socket.closed? | ||
buffer = socket.readpartial(@connection.buffer_size) | ||
driver.parse(buffer) | ||
end | ||
@timer = Celluloid.every(seconds) { read } | ||
rescue EOFError | ||
close | ||
end | ||
alias read_interval read_every | ||
alias read_frequency read_every | ||
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def read | ||
@parser.append @socket.readpartial(Connection::BUFFER_SIZE) until msg = @parser.next_message | ||
msg | ||
rescue | ||
cancel_timer! | ||
raise | ||
end | ||
private | ||
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def body | ||
nil | ||
def driver | ||
@driver ||= ::WebSocket::Driver.server(self) | ||
end | ||
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def write(msg) | ||
@socket << ::WebSocket::Message.new(msg).to_data | ||
msg | ||
rescue IOError, Errno::ECONNRESET, Errno::EPIPE | ||
cancel_timer! | ||
raise SocketError, "error writing to socket" | ||
rescue | ||
cancel_timer! | ||
raise | ||
end | ||
alias_method :<<, :write | ||
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def closed? | ||
@socket.closed? | ||
end | ||
def convert_headers(headers) | ||
prefixed_headers = headers.map do |key, value| | ||
header = key.upcase.gsub('-', '_') | ||
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def close | ||
cancel_timer! | ||
@socket.close unless closed? | ||
end | ||
if NO_PREFIX_HEADERS.member?(header) | ||
[header, value] | ||
else | ||
['HTTP_' + header, value] | ||
end | ||
end | ||
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def cancel_timer! | ||
@timer && @timer.cancel | ||
Hash[prefixed_headers] | ||
end | ||
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end | ||
end |
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