Class: Aspera::Transfer::Uri

Inherits:
Object
  • Object
show all
Defined in:
lib/aspera/transfer/uri.rb

Overview

translates a “faspe:” URI (used in Faspex 4) into transfer spec (Hash)

Constant Summary collapse

SCHEME = 
'faspe'

Instance Method Summary collapse

Constructor Details

#initialize(fasp_link) ⇒ Uri

Returns a new instance of Uri.



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# File 'lib/aspera/transfer/uri.rb', line 14

def initialize(fasp_link)
  @fasp_uri = URI.parse(fasp_link.gsub(' ', '%20'))
  Aspera.assert(@fasp_uri.scheme == SCHEME, "Invalid scheme: #{@fasp_uri.scheme}")
end

Instance Method Details

#transfer_spec ⇒ Object

Generate transfer spec from provided faspe: URL



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# File 'lib/aspera/transfer/uri.rb', line 20

def transfer_spec
  result_ts = {}
  result_ts['remote_host'] = @fasp_uri.host
  result_ts['remote_user'] = @fasp_uri.user
  result_ts['ssh_port'] = @fasp_uri.port
  result_ts['paths'] = [{'source' => URI.decode_www_form_component(@fasp_uri.path)}]
  # faspex 4 does not encode trailing base64 padding, fix that to be able to decode properly
  fixed_query = @fasp_uri.query.gsub(/(=+)$/){|trail_equals|'%3D' * trail_equals.length}

  Rest.decode_query(fixed_query).each do |name, value|
    case name
    when 'cookie'      then result_ts['cookie'] = value
    when 'token'       then result_ts['token'] = value
    when 'sshfp'       then result_ts['sshfp'] = value
    when 'policy'      then result_ts['rate_policy'] = value
    when 'httpport'    then result_ts['http_fallback_port'] = value.to_i
    when 'targetrate'  then result_ts['target_rate_kbps'] = value.to_i
    when 'minrate'     then result_ts['min_rate_kbps'] = value.to_i
    when 'port'        then result_ts['fasp_port'] = value.to_i
    when 'bwcap'       then result_ts['target_rate_cap_kbps'] = value.to_i
    when 'enc'         then result_ts['cipher'] = value.gsub(/^aes/, 'aes-').gsub(/cfb$/, '-cfb').gsub(/gcm$/, '-gcm').gsub('--', '-')
    when 'tags64'      then result_ts['tags'] = JSON.parse(Base64.strict_decode64(value))
    when 'createpath'  then result_ts['create_dir'] = CommandLineBuilder.yes_to_true(value)
    when 'fallback'    then result_ts['http_fallback'] = CommandLineBuilder.yes_to_true(value)
    when 'lockpolicy'  then result_ts['lock_rate_policy'] = CommandLineBuilder.yes_to_true(value)
    when 'lockminrate' then result_ts['lock_min_rate'] = CommandLineBuilder.yes_to_true(value)
    when 'auth'        then Log.log.debug{"ignoring #{name}=#{value}"} # Not used (yes/no)
    when 'v'           then Log.log.debug{"ignoring #{name}=#{value}"} # rubocop:disable Lint/DuplicateBranch Not used (shall be 2)
    when 'protect'     then Log.log.debug{"ignoring #{name}=#{value}"} # rubocop:disable Lint/DuplicateBranch TODO: what is this ?
    else                    Log.log.warn{"URI parameter ignored: #{name} = #{value}"}
    end
  end
  return result_ts
end