Module: TrovoBot

Defined in:
lib/trovobot/common.rb,
lib/trovobot.rb

Overview

this might some day before a separate gem

Defined Under Namespace

Modules: Common

Constant Summary collapse

SEMAPHORE_NETHTTP = 
Async::Semaphore.new 5

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.queue ⇒ Object

Returns the value of attribute queue.



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# File 'lib/trovobot.rb', line 62

def queue
  @queue
end

Class Method Details

.access_token ⇒ Object 



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# File 'lib/trovobot.rb', line 13

def self.access_token
  JSON.load( ( Common::cache_text "tokens.json" do
    NetHTTPUtils.request_data "https://open-api.trovo.live/openplatform/exchangetoken", :POST, :json, header: {
      "Client-ID" => File.read("clientid"),
    }, form: {
      client_secret: File.read("clientsecret"),
      grant_type: "authorization_code",
      code: File.read("auth_code"),
      redirect_uri: "https://trovo.live/",
    }
  end ) ).fetch("access_token")
end

.name_to_id(name) ⇒ Object 



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# File 'lib/trovobot.rb', line 57

def self.name_to_id name
  request("getusers", {user: [name || fail]})["users"].map{ |_| _["channel_id"] }[0].to_i
end

.request(mtd, form = {}) ⇒ Object 



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# File 'lib/trovobot.rb', line 25

def self.request mtd, form = {}
  Sync do
    sleep SEMAPHORE_TIME.async{ [@prev + 0.1 - Time.now, 0].max.tap{ @prev = Time.now } }.wait
    JSON.load( SEMAPHORE_NETHTTP.async do
      NetHTTPUtils.request_data "https://open-api.trovo.live/openplatform/#{mtd}", :POST, :json, header: {
        "Client-ID" => File.read("clientid"),
        "Authorization" => "OAuth #{access_token}",
      }, form: form
    rescue NetHTTPUtils::Error => e
      p e.body
      case e.code
      when 401
        fail unless 11714 == JSON.load(e.body).fetch("status")
        Common::cache_text "tokens.json", true do
          NetHTTPUtils.request_data "https://open-api.trovo.live/openplatform/refreshtoken", :POST, :json, header: {
            "Client-ID" => File.read("clientid"),
          }, form: {
            client_secret: File.read("clientsecret"),
            grant_type: "refresh_token",
            refresh_token: JSON.load(File.read"tokens.json").fetch("refresh_token"),
          }
        end
        sleep 1   # TODO: remove?
        retry
      when 400
        fail unless 20000 == JSON.load(e.body).fetch("status")
        pp [mtd, form]
        raise
      end
    end.wait )
  end
end

.start ⇒ Object 



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# File 'lib/trovobot.rb', line 66

def self.start
  Thread.new do
    loop do
      content, channel_id = queue.pop
      fail unless channel_id  # omitting (for sending to own channel) isn't implemented yet
      pp request "chat/send", {content: content, channel_id: channel_id}
      sleep 1
    end
  end.abort_on_exception = true
  puts "admin -- #{ARGV[0] || fail}"
  puts "channel -- #{ARGV[1] || fail}"
  require "async/websocket/client"
  require "async/http/endpoint"
  Async do |task|
    puts "debug: Async"
    channel_id = name_to_id ARGV[1]
    chat_token = JSON.load( SEMAPHORE_NETHTTP.async do
      NetHTTPUtils.request_data "https://open-api.trovo.live/openplatform/chat/channel-token/#{channel_id}", header: {
        "Accept" => "application/json",
        "Client-ID" => File.read("clientid"),
      }
    end.wait )["token"]
    loop do
      puts "debug: loop"
      Async::WebSocket::Client.connect(Async::HTTP::Endpoint.parse "wss://open-chat.trovo.live/chat", alpn_protocols: Async::HTTP::Protocol::HTTP11.names) do |connection|
        puts "debug: connection"
        ping_task = task.async do
          loop do
            sleep 30
            connection.write( {type: "PING", nonce: ""} )
            connection.flush
          end
        end
        connection.write( {type: "AUTH", nonce: "", data: {token: chat_token}} )
        # TODO: wrap the file in a semaphore
        require "fileutils"
        FileUtils.touch "processed.jsonl" unless File.exist? "processed.jsonl"
        to_skip = File.read("processed.jsonl").split("\n")
        # trovo may send the same message but with slightly different attributes, such as avatar, so we store only ids
        while msg = connection.read
          # outdated?
          #   for efficiency if I start processing then I immediately stop skipping,
          #   so I don't process until it's type="CHAT" with new id
          # for now we only yield and track CHATs
          # next if msg.fetch(:type) == "PONG"
          next unless msg[:type] == "CHAT"
          new_msgs = msg[:data].fetch(:chats, []).reject{ |_| (to_skip || []).include? _.fetch :message_id }
          next if new_msgs.empty?
          to_skip = nil
          puts "< #{Time.now} #{Base64.strict_encode64 msg.to_s}"
          puts msg.pretty_inspect.gsub(/^/, "< ")
          new_msgs.each do |msg|
            yield msg, channel_id
          rescue
            puts $!.full_message
            queue.push ["error at #{ARGV[1]}: #{$!}, #{$!.backtrace.first}", name_to_id(ARGV[0])]
          else
            File.open("processed.jsonl", "a"){ |_| _.puts msg.fetch :message_id }
          end
        end
      ensure
        ping_task&.stop
      end
    rescue Async::WebSocket::ProtocolError, OpenSSL::SSL::SSLError
      p $!
      sleep 5
      retry
    end
  end # we wanted to rescue Async::* errors to retry this but it appeared to also throw other kinds of exceptions so we just loop
end