Class: Aspera::Cli::Plugins::Server

Inherits:
BasicAuthPlugin show all
Defined in:
lib/aspera/cli/plugins/server.rb

Defined Under Namespace

Classes: LocalExecutor

Constant Summary collapse

LOCAL_SCHEME = 
'local'
HTTPS_SCHEME = 
'https'
BASE_ACTIONS =

actions without ascmd

%i[health].concat(TRANSFER_COMMANDS).freeze
ACTIONS =

all actions

[BASE_ACTIONS, Aspera::AsCmd::OPERATIONS, ASCMD_ALIASES.keys].flatten.freeze

Constants inherited from Aspera::Cli::Plugin

Aspera::Cli::Plugin::ALL_OPS, Aspera::Cli::Plugin::GLOBAL_OPS, Aspera::Cli::Plugin::INSTANCE_OPS, Aspera::Cli::Plugin::MAX_ITEMS, Aspera::Cli::Plugin::MAX_PAGES, Aspera::Cli::Plugin::REGEX_LOOKUP_ID_BY_FIELD, Aspera::Cli::Plugin::VAL_ALL

Instance Method Summary collapse

Methods inherited from BasicAuthPlugin

#basic_auth_api, #basic_auth_params, register_options

Methods inherited from Aspera::Cli::Plugin

#do_bulk_operation, #entity_action, #entity_command, #instance_identifier, #old_query_read_delete, #query_read_delete, #value_create_modify, #value_or_query

Constructor Details

#initialize(env) ⇒ Server

Returns a new instance of Server.



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# File 'lib/aspera/cli/plugins/server.rb', line 52

def initialize(env)
  super(env)
  options.declare(:ssh_keys, 'SSH key path list (Array or single)')
  options.declare(:passphrase, 'SSH private key passphrase')
  options.declare(:ssh_options, 'SSH options', types: Hash, default: {})
  options.parse_options!
  @ssh_opts = options.get_option(:ssh_options).symbolize_keys
end

Instance Method Details

#execute_action ⇒ Object 



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# File 'lib/aspera/cli/plugins/server.rb', line 151

def execute_action
  server_transfer_spec = options_to_base_transfer_spec
  ascmd_executor = if !@ssh_opts.empty?
    Ssh.new(server_transfer_spec['remote_host'], server_transfer_spec['remote_user'], @ssh_opts)
  elsif server_transfer_spec.key?('wss_enabled')
    nil
  else
    LocalExecutor.new
  end
  # the set of available commands depends on SSH executor availability (i.e. no WSS)
  available_commands = ascmd_executor.nil? ? BASE_ACTIONS : ACTIONS
  # get command and translate aliases
  command = options.get_next_command(available_commands)
  command = ASCMD_ALIASES[command] if ASCMD_ALIASES.key?(command)
  case command
  when :health
    nagios = Nagios.new
    command_nagios = options.get_next_command(%i[transfer])
    case command_nagios
    when :transfer
      file = Tempfile.new('transfer_test')
      filepath = file.path
      file.write('This is a test file for transfer test')
      file.close
      probe_ts = server_transfer_spec.merge({
        'direction'     => 'send',
        'cookie'        => 'aspera.sync', # hide in console
        'resume_policy' => 'none',
        'paths'         => [{'source' => filepath, 'destination' => '.fasping'}]
      })
      statuses = transfer.start(probe_ts)
      file.unlink
      if TransferAgent.session_status(statuses).eql?(:success)
        nagios.add_ok('transfer', 'ok')
      else
        nagios.add_critical('transfer', statuses.reject{|i|i.eql?(:success)}.first.to_s)
      end
    else raise 'ERROR'
    end
    return nagios.result
  when *TRANSFER_COMMANDS
    return execute_transfer(command, server_transfer_spec)
  when *Aspera::AsCmd::OPERATIONS
    args = options.get_next_argument('ascmd command arguments', expected: :multiple, mandatory: false)
    ascmd = Aspera::AsCmd.new(ascmd_executor)
    begin
      result = ascmd.send(:execute_single, command, args)
      case command
      when :mkdir, :mv, :cp, :rm
        return Main.result_success
      when :ls
        return {type: :object_list, data: result.map(&:stringify_keys), fields: %w[zmode zuid zgid size mtime name]}
      when :df
        return {type: :object_list, data: result.map(&:stringify_keys)}
      when :du, :md5sum, :info
        return {type: :single_object, data: result.stringify_keys}
      end
    rescue Aspera::AsCmd::Error => e
      raise CliBadArgument, e.extended_message
    end
  else raise 'internal error: unexpected action'
  end
end

#execute_transfer(command, transfer_spec) ⇒ Object 



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# File 'lib/aspera/cli/plugins/server.rb', line 135

def execute_transfer(command, transfer_spec)
  case command
  when :upload, :download
    Fasp::TransferSpec.action_to_direction(transfer_spec, command)
    return Main.result_transfer(transfer.start(transfer_spec))
  when :sync
    sync_plugin = Plugins::Sync.new(@agents, sync_spec: SyncSpecServer.new(transfer_spec))
    return sync_plugin.execute_action
  end
end

#options_to_base_transfer_spec ⇒ Hash

Read command line options

Returns:

  • (Hash) —

    transfer specification



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# File 'lib/aspera/cli/plugins/server.rb', line 63

def options_to_base_transfer_spec
  url = options.get_option(:url, mandatory: true)
  server_transfer_spec = {}
  server_uri = URI.parse(url)
  Log.log.debug{"URI=#{server_uri}, host=#{server_uri.hostname}, port=#{server_uri.port}, scheme=#{server_uri.scheme}"}
  server_transfer_spec['remote_host'] = server_uri.hostname
  unless URI_SCHEMES.include?(server_uri.scheme)
    Log.log.warn{"Scheme [#{server_uri.scheme}] not supported in #{url}, use one of: #{URI_SCHEMES.join(', ')}. Defaulting to #{SSH_SCHEME}."}
    server_uri.scheme = SSH_SCHEME
  end
  if server_uri.scheme.eql?(LOCAL_SCHEME)
    # Using local execution (mostly for testing)
    server_transfer_spec['remote_host'] = 'localhost'
    # simulate SSH environment, else ascp will fail
    ENV['SSH_CLIENT'] = 'local 0 0'
    return server_transfer_spec
  elsif transfer.option_transfer_spec['token'].is_a?(String) && server_uri.scheme.eql?(HTTPS_SCHEME)
    server_transfer_spec['wss_enabled'] = true
    server_transfer_spec['wss_port'] = server_uri.port
    # Using WSS
    return server_transfer_spec
  end
  if !server_uri.scheme.eql?(SSH_SCHEME)
    Log.log.warn('URL scheme is https but no token was provided in transfer spec.')
    Log.log.warn("If you want to access the server, not using WSS for session, then use a URL with scheme \"#{SSH_SCHEME}\" and proper SSH port")
    assumed_url = "#{SSH_SCHEME}://#{server_transfer_spec['remote_host']}:#{Aspera::Fasp::TransferSpec::SSH_PORT}"
    Log.log.warn{"Assuming proper URL is: #{assumed_url}"}
    server_uri = URI.parse(assumed_url)
  end
  # Scheme is SSH
  if options.get_option(:username).nil?
    options.set_option(:username, Aspera::Fasp::TransferSpec::ACCESS_KEY_TRANSFER_USER)
    Log.log.info{"No username provided: Assuming default transfer user: #{Aspera::Fasp::TransferSpec::ACCESS_KEY_TRANSFER_USER}"}
  end
  server_transfer_spec['remote_user'] = options.get_option(:username, mandatory: true)
  if !server_uri.port.nil?
    @ssh_opts[:port] = server_uri.port
    server_transfer_spec['ssh_port'] = server_uri.port
  end
  cred_set = false
  password = options.get_option(:password)
  if !password.nil?
    @ssh_opts[:password] = password
    server_transfer_spec['remote_password'] = password
    cred_set = true
  end
  ssh_key_list = options.get_option(:ssh_keys)
  if !ssh_key_list.nil?
    raise 'Expecting single value or array for ssh_keys' unless ssh_key_list.is_a?(Array) || ssh_key_list.is_a?(String)
    ssh_key_list = [ssh_key_list] if ssh_key_list.is_a?(String)
    ssh_key_list.map!{|p|File.expand_path(p)}
    Log.log.debug{"SSH keys=#{ssh_key_list}"}
    if !ssh_key_list.empty?
      @ssh_opts[:keys] = ssh_key_list
      server_transfer_spec['EX_ssh_key_paths'] = ssh_key_list
      ssh_key_list.each do |k|
        Log.log.warn{"No such key file: #{k}"} unless File.exist?(k)
      end
      cred_set = true
    end
  end
  ssh_passphrase = options.get_option(:passphrase)
  if !ssh_passphrase.nil?
    @ssh_opts[:passphrase] = ssh_passphrase
    server_transfer_spec['ssh_private_key_passphrase'] = ssh_passphrase
  end
  # if user provided transfer spec has a token, we will use bypass keys
  cred_set = true if transfer.option_transfer_spec['token'].is_a?(String)
  raise 'Either password, key , or transfer spec token must be provided' if !cred_set
  return server_transfer_spec
end