Module: Sanguinews

Defined in:
lib/sanguinews/config.rb,
lib/sanguinews.rb,
lib/sanguinews/version.rb,
lib/sanguinews/nntp_msg.rb,
lib/sanguinews/file_to_upload.rb

Overview

Config - class designed specifically for sanguinews Copyright © 2013-2014, Tadeus Dobrovolskij This library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Defined Under Namespace

Classes: Config, FileToUpload, NntpMsg

Constant Summary collapse

VERSION = 
"0.62"

Class Method Summary collapse

Class Method Details

.connect(conn_nr) ⇒ Object 



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# File 'lib/sanguinews.rb', line 87

def connect(conn_nr)
  begin
    nntp = Net::NNTP.start(
	@config.server, @config.port, @config.username, @config.password, @config.mode)
  rescue
    @s.log([$!, $@], stderr: true) if @config.debug
    if @config.verbose
      parse_error($!.to_s)
      @s.log("Connection nr. #{conn_nr} has failed. Reconnecting...\n", stderr: true)
    end
    sleep @config.reconnect_delay
    retry
  end
  return nntp
end

.form_message(data) ⇒ Object 



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

def form_message(data)
  message = data[:yenc]
  length = data[:length]
  pcrc32 = data[:crc32]
  file = data[:file]
  chunk = data[:chunk]
  crc32 = file.crc32
  fsize = file.size
  chunks = file.chunks
  basename = file.name
  # usenet works with ASCII
  subject="#{@config.prefix}#{file.dir_prefix}\"#{basename}\" yEnc (#{chunk}/#{chunks})"
  msg = NntpMsg.new(@config.from, @config.groups, subject)
  msg.poster = "sanguinews v#{Sanguinews::VERSION} (ruby #{RUBY_VERSION}) - https://github.com/tdobrovolskij/sanguinews"
  msg.xna = @config.xna
  msg.message = message.force_encoding('ASCII-8BIT')
  msg.yenc_body(chunk, chunks, crc32, pcrc32, length, fsize, basename)
  msg = msg.return_self
  { message: msg, filename: basename, chunk: chunk, length: length }
end

.get_msgid(responses) ⇒ Object 



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# File 'lib/sanguinews.rb', line 103

def get_msgid(responses)
  msgid = ''
  responses.each do |response|
    msgid = response.sub(/>.*/, '').tr("<", '') if response.end_with?('Article posted')
  end
  return msgid
end

.parse_error(msg, **info) ⇒ Object 



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# File 'lib/sanguinews.rb', line 111

def parse_error(msg, **info)
  if info[:file] && info[:chunk]
    fileinfo = '(' + info[:file] + ' / Chunk: ' + info[:chunk].to_s + ')'
  else
    fileinfo = ''
  end

  case
  when /\A411/ === msg
    @s.log("Invalid newsgroup specified.\n", stderr: true)
  when /\A430/ === msg
    @s.log("No such article. Maybe server is lagging...#{fileinfo}\n", stderr: true)
  when /\A(4\d{2}\s)?437/ === msg
    @s.log("Article rejected by server. Maybe it's too big.#{fileinfo}\n", stderr: true)
  when /\A440/ === msg
    @s.log("Posting not allowed.\n", stderr: true)
  when /\A441/ === msg
    @s.log("Posting failed for some reason.#{fileinfo}\n", stderr: true)
  when /\A450/ === msg
    @s.log("Not authorized.\n", stderr: true)
  when /\A452/ === msg
    @s.log("Wrong username and/or password.\n", stderr: true)
  when /\A500/ === msg
    @s.log("Command not recognized.\n", stderr: true)
  when /\A501/ === msg
    @s.log("Command syntax error.\n", stderr: true)
  when /\A502/ === msg
    @s.log("Access denied.\n", stderr: true)
  end
end

.process_and_upload(queue, nntp_pool, info_lock, informed) ⇒ Object 



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# File 'lib/sanguinews.rb', line 142

def process_and_upload(queue, nntp_pool, info_lock, informed)
  stuff = queue.pop
  queue.synchronize do
    @cond.signal
  end
  nntp = nntp_pool.pop

  data = stuff[0]
  file = stuff[1]
  msg = data[:message]
  chunk = data[:chunk]
  basename = data[:filename]
  length = data[:length]
  full_size = msg.length
  info_lock.synchronize do
    if !informed[basename.to_sym]
      @s.log("Uploading #{basename}\n")
      @s.log(file.subject + "\n")
      @s.log("Chunks: #{file.chunks}\n", stderr: true) if @verbose
      informed[basename.to_sym] = true
    end
  end

  @s.start
  check_delay = 1
  begin
    response = nntp.post msg
    msgid = get_msgid(response)
    if @config.header_check
      sleep check_delay
      nntp.stat("<#{msgid}>")
    end
  rescue
    @s.log([$!, $@], stderr: true) if @config.debug
    if @config.verbose
      parse_error($!.to_s, file: basename, chunk: chunk)
      @s.log("Upload of chunk #{chunk} from file #{basename} unsuccessful. Retrying...\n", stderr: true)
    end
    sleep @config.reconnect_delay
    check_delay += 4
    retry
  end

  if @config.verbose
    @s.log("Uploaded chunk Nr:#{chunk}\n", stderr: true)
  end

  @s.done(length)
  @s.uploaded += full_size
  if @config.nzb
    file.write_segment_info(length, chunk, msgid)
  end
  nntp_pool.push(nntp)
end

.run! ⇒ Object 



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# File 'lib/sanguinews.rb', line 197

def run!
  @config = Config.new(ARGV)
  files = @config.files

  # skip hidden files
  if !@config.filemode
    Dir.foreach(@config.directory) do |item|
      next if item.start_with?('.')
      files << @config.directory+item
    end
  end

  # "max" is needed only in dirmode
  max = files.length
  current_file = 1

  unprocessed = 0
  info_lock=Mutex.new
  messages = Queue.new
  messages.extend(MonitorMixin)
  @cond = messages.new_cond
  files_to_process = []
  @s = Speedometer.new(units: "KB", progressbar: true)
  @s.uploaded = 0

  pool = Queue.new
  Thread.new {
    @config.connections.times do |conn_nr|
      nntp = connect(conn_nr)
      pool.push(nntp)
    end
  }

  thread_pool = Pool.new(@config.connections)
  informed = {}

  files.each do |file|
    next if !File.file?(file)

    informed[file.to_sym] = false
    file = FileToUpload.new(
      name: file, chunk_length: @config.article_size, prefix: @config.prefix,
	current: current_file, last: max, filemode: @config.filemode,
	from: @config.from, groups: @config.groups, nzb: @config.nzb
    )
    @s.to_upload += file.size

    info_lock.synchronize do
      unprocessed += file.chunks
    end

    files_to_process << file
    current_file += 1
  end

  # let's give a little bit higher priority for file processing thread
  @file_proc_thread = Thread.new {
    files_to_process.each do |file|
      @s.log("Calculating CRC32 value for #{file.name}\n", stderr: true) if @verbose
      file.file_crc32
      @s.log("Encoding #{file.name}\n")
      yencode(file, @config.article_size, messages)
    end
  }
  @file_proc_thread.priority += 2

  until unprocessed == 0
    thread_pool.schedule do
      process_and_upload(messages, pool, info_lock, informed)
    end
    unprocessed -= 1
  end

  thread_pool.shutdown

  until pool.empty?
    nntp = pool.pop
    nntp.finish
  end

  @s.stop
  puts

  files_to_process.each do |file|
    if files_to_process.last == file
      last = true
    else
      last = false
    end
    file.close(last)
  end
end

.yencode(file, length, queue) ⇒ Object

Method returns yenc encoded string and crc32 value



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# File 'lib/sanguinews.rb', line 40

def yencode(file, length, queue)
   chunk = 1
   until file.eof?
      bindata = file.read(length)
      # We can't take all memory, so we wait
      queue.synchronize do
        @cond.wait_while do
          queue.length > @config.connections * 3
        end
      end
      data = {}
      final_data = []
      len = bindata.length
      yencoded = Yencoded::Data.yenc(bindata, len)
      data[:crc32] = yencoded[1].to_s(16)
      data[:yenc] = yencoded[0]
      data[:length] = len
      data[:chunk] = chunk
      data[:file] = file
      final_data[0] = form_message(data)
      final_data[1] = file
      queue.push(final_data)
      chunk += 1
   end
end