Class: MPW::Sync

Inherits:
Object
  • Object
show all
Defined in:
lib/mpw/sync.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config, local, password = nil) ⇒ Sync

Constructor raise an exception if there is a bad parameter



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# File 'lib/mpw/sync.rb', line 20

def initialize(config, local, password=nil)
  @error_msg = nil
  @config    = config
  @local     = local
  @password  = password

  raise I18n.t('error.class') if not @local.instance_of?(MPW)
end

Instance Attribute Details

#error_msg ⇒ Object

Returns the value of attribute error_msg.



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# File 'lib/mpw/sync.rb', line 16

def error_msg
  @error_msg
end

Instance Method Details

#get_remote ⇒ Object

Get the data on remote host @rtrn: true if get the date, else false



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# File 'lib/mpw/sync.rb', line 31

def get_remote
  case @config.sync_type
  when 'mpw'
    require 'mpw/sync/mpw'
    @sync = SyncMPW.new(@config.sync_host, @config.sync_user, @config.sync_pwd, @config.sync_path, @config.sync_port)
  when 'sftp', 'scp', 'ssh'
    require 'mpw/sync/ssh'
    @sync = SyncSSH.new(@config.sync_host, @config.sync_user, @config.sync_pwd, @config.sync_path, @config.sync_port)
  when 'ftp'
    require 'mpw/sync/ftp'
    @sync = SyncFTP.new(@config.sync_host, @config.sync_user, @config.sync_pwd, @config.sync_path, @config.sync_port)
  else
    @error_msg =  I18n.t('error.unknown_type')
    return false
  end

  if not @sync.connect
    @error_msg = @sync.error_msg
    return false
  end

  
  file_tmp = Tempfile.new('mpw-')
  raise @sync.error_msg if not @sync.get(file_tmp.path)  

  @remote = MPW.new(file_tmp.path, @config.key)
  raise @remote.error_msg if not @remote.decrypt(@password)

  file_tmp.close(true)
  return true
rescue Exception => e
  @error_msg = "#{I18n.t('error.sync.download')} #{e}"
  file_tmp.close(true)
  return false
end

#sync ⇒ Object

Sync remote data and local data raise an exception if there is a problem



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# File 'lib/mpw/sync.rb', line 69

def sync
  
  if not @remote.to_s.empty?
    @local.list.each do |item|
      update = false
      @remote.list.each do |r|

        # Update item
        if item.id == r.id
          if item.last_edit < r.last_edit
            raise item.error_msg if not item.update(name:      r.name,
                                                    group:     r.group,
                                                    host:      r.host,
                                                    protocol:  r.protocol,
                                                    user:      r.user,
                                                    password:  r.password,
                                                    port:      r.port,
                                                    comment:   r.comment
                                                   )
          end

          r.delete
          update = true

          break
        end
      end

      # Remove an old item
      if not update and item.last_sync.to_i < @config.last_sync and item.last_edit < @config.last_sync
        item.delete
      end
    end
  end
  
  # Add item
  @remote.list.each do |r|
    if r.last_edit > @config.last_sync
      item = Item.new(id:        r.id,
                      name:      r.name,
                      group:     r.group,
                      host:      r.host,
                      protocol:  r.protocol,
                      user:      r.user,
                      password:  r.password,
                      port:      r.port,
                      comment:   r.comment,
                      created:   r.created,
                      last_edit: r.last_edit
                     )
      raise @local.error_msg if not @local.add(item)
    end
  end

  @local.list.each do |item|
    item.set_last_sync
  end

  raise @mpw.error_msg  if not @local.encrypt 
  raise @sync.error_msg if not @sync.update(@config.file_gpg)
  
  @config.set_last_sync

  return true
rescue Exception => e
  @error_msg = "#{I18n.t('error.sync.unknown')} #{e}"
  return false
end