starting everything from scratch
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cb11018eba
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c1e2162ce2
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# The behavior of RuboCop can be controlled via the .rubocop.yml
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# configuration file. It makes it possible to enable/disable
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# certain cops (checks) and to alter their behavior if they accept
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# any parameters. The file can be placed either in your home
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# directory or in some project directory.
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#
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# RuboCop will start looking for the configuration file in the directory
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# where the inspected file is and continue its way up to the root directory.
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#
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# See https://docs.rubocop.org/rubocop/configuration
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require: standard
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inherit_gem:
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standard: config/base.yml
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---
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include:
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- "**/*.rb"
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exclude:
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- spec/**/*
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- test/**/*
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- vendor/**/*
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- ".bundle/**/*"
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require: []
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domains: []
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reporters:
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- rubocop
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- require_not_found
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formatter:
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rubocop:
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cops: safe
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except: []
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only: []
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extra_args: []
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require_paths: []
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plugins: []
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max_files: 5000
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101
proto.rb
101
proto.rb
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require "date"
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def validate(*a)
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# Check arguments against either a list of acceptable classes or just a class
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raise ArgumentError, "expected an even number of arguments" if a.count%2 != 0
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for i in (0..a.count-1).step(2) do
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if a[i+1].kind_of?(Class) then
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raise TypeError, "expected argument #{i/2} of type #{a[i+1].to_s}" unless a[i].kind_of?(a[i+1])
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elsif a[i+1].kind_of?(Array) then
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raise TypeError, "expected argument #{i/2} of any of the types #{a[i+1].to_s}" unless a[i+1].include?(a[i].class)
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end
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end
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end
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module Heimdall
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# Core protocol
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class NetEntity
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# Abstraction that stores basic object properties
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@createdAt
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def initialize()
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@createdAt = DateTime.new
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end
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attr_reader :createdAt
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end
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class User < NetEntity
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# User abstraction (not bound to a group chat)
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@username
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@nickname
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def initialize(username,nickname = nil)
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validate(
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username, String,
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nickname, [String,NilClass]
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)
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super()
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nickname = username if not nickname
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@username = username
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@nickname = nickname
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end
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attr_reader :username
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attr_accessor :nickname
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end
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class Channel < NetEntity
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# Channel abstraction (not bound to a group)
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# Practically acts as a message stack
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# Read access to all elements
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# Write access only to top
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@messages
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def initialize()
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validate(
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id, String
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)
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super()
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@messages = []
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end
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def [](index)
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@messages[id]
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end
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def <<(message)
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@messages.append(message)
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end
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def top(count = 1)
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return @messages[-1] if count == 1
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@messages[(-1*count)..-1]
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end
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def filter(&block)
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@messages.filter(block)
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end
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def snapshot()
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@messages.clone
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end
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end
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class Message < NetEntity
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# Message abstraction with edits and content history (not bound to a group)
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@content
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@author
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@editedAt
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@contentHist
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def initialize(content,author,channel)
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validate(
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content, String,
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author, Heimdall::User,
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channel, Heimdall::Channel
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)
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super()
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@editedAt = DateTime.new
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@contentHist = [content]
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@content = content
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@author = author
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end
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def edit(content)
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@content = content
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@editedAt = DateTime.new
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@contentHist.append(content)
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end
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attr_reader :content
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attr_reader :author
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attr_reader :contentHist
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attr_reader :editedAt
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end
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end
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98
server.rb
98
server.rb
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# Prototype of the heimdall server
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$LOAD_PATH << "."
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$VERSION = "0.1"
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$PORT = 9128
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require "proto"
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require "socket"
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PROTO_CODES = {
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:SUCCESS => 0,
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:BADJSON => 1,
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:NOMETHOD => 2,
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:INVPARAM => 3,
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:NOTIMPL => 4
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}
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PROTO_MESSAGES = {
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:SUCCESS => "Done",
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:BADJSON => "Invalid JSON object",
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:NOMETHOD => "Invalid method",
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:INVPARAM => "Invalid parameters",
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:NOTIMPL => "Not implemented"
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}
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class Server
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@channelPool
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@channelListeners
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@methods
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def initialize()
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@channelPool = {}
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@channelListeners = {}
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@methods = [
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"join",
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"useradd",
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"userdel",
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"userinfo",
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"lusers",
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"lchannels",
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"chantop",
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"chansend",
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"chanedit"
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]
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end
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def send(client,message)
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client.puts JSON.dump(message)
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end
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def err(client,code)
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client.puts JSON.dump({
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:error=>PROTO_MESSAGES[code],
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:code=>PROTO_CODES[code]
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})
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client.close
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end
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def serve(client)
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# basic validation steps
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begin
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# 1. JSON validation
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data = client.gets
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data = JSON.load(data)
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rescue JSON::ParserError
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err(client,:BADJSON)
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end
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# 2. Method validation
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method = data[:method]
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err(client,:NOMETHOD) if not @methods.include?(method)
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# last but not least: calling the given method
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if not self.methods.include?(method) then
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err(client,:NOTIMPL)
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return
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end
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send(client,self.method(method).call(client,data))
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end
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def join(client,data)
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chaind = data["chanid"]
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chanid = rand(89999999)+10000000 if not chanid
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if not @channelPool[chanid] then
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@channelPool[chanid] = Heimdall::Channel.new
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@channelListeners
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end
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return {
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:code=>PROTO_CODE[:SUCCESS],
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:method=>"join",
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:chanid=>chanid,
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}
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end
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end
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puts "Starting heimdall v#{$VERSION} server on port #{$PORT}..."
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server = TCPServer.new 9128
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loop do
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Thread.start(server.accept) do |client|
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puts "Received client connection on #{client.addr}"
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end
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end
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