Class: Crane::Ftp

Inherits:
Object
  • Object
show all
Defined in:
lib/crane/ftp.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(c = false) ⇒ Ftp

Returns a new instance of Ftp.



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# File 'lib/crane/ftp.rb', line 10

def initialize c = false
  @connection = nil
  @existent_dirs = []
  @nlst = {}
  unless c
    config = Config.load_config
    unless config.empty?
      c = {}
      c[:ftp] = config[:ftp] unless config[:ftp].empty?
    end
  end
  connect(c) if c
  self
end

Instance Attribute Details

#connection ⇒ Object

Returns the value of attribute connection.



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# File 'lib/crane/ftp.rb', line 8

def connection
  @connection
end

#connection_error ⇒ Object

Returns the value of attribute connection_error.



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# File 'lib/crane/ftp.rb', line 8

def connection_error
  @connection_error
end

Instance Method Details

#chdir(var) ⇒ Object 



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# File 'lib/crane/ftp.rb', line 83

def chdir var
  @connection.chdir var
end

#close ⇒ Object 



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# File 'lib/crane/ftp.rb', line 75

def close
  @connection.close
end

#connect(c = {}) ⇒ Object 



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# File 'lib/crane/ftp.rb', line 25

def connect c = {}
  port = c[:port] || 21
  c = c[:ftp] if c.include? :ftp
  
  return false unless c.has_key? :host

  @connection = Net::FTP.new
  @connection_error = false
  @connection.passive = true
  begin
    Timeout.timeout(10) do
      @connection.connect c[:host], port
    end
  rescue Timeout::Error
    @connection_error = "Timeout on connection"
  rescue
    @connection_error = "Error on connection FTP"
  end
  
  begin
    Timeout.timeout(20) do
      @connection. c[:username], c[:password]
    end
  rescue Timeout::Error
    @connection_error = "Timeout on authentication (20 seconds)"
  rescue Net::FTPPermError
    @connection_error = "Invalid username/password"
  rescue 
    @connection_error = "Unknown error related to username/password"
  end

  return false if @connection_error
  true  
end

#mkdir(dir) ⇒ Object

Accepts deep directories as parameter



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# File 'lib/crane/ftp.rb', line 88

def mkdir dir
  each_dir = dir.split("/")
  return false if dir.empty?
  last_dir = ""
  
  each_dir.each { |d|
    next if ["", ".", ".."].include? d
  
    slashed_d = "/" + d if d[0,1] != "/"
    current_dir = last_dir + slashed_d

    if @existent_dirs.include? current_dir
      last_dir << slashed_d
      next
    else
      @connection.chdir last_dir unless last_dir.empty?
      
      if @nlst.include? last_dir
        nlst = @nlst[last_dir]
      else
        nlst = @connection.nlst
      end
      @nlst[last_dir] = nlst
      if nlst.include? d
        @existent_dirs << current_dir
        last_dir << slashed_d
        next
      else
        @connection.mkdir d
        @connection.chdir current_dir
        last_dir << slashed_d
        @existent_dirs << current_dir
      end
    end
  }
  @connection.chdir pwd
end

#putbinaryfile(f, f2) ⇒ Object 



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# File 'lib/crane/ftp.rb', line 79

def putbinaryfile f, f2
  @connection.putbinaryfile f, f2
end

#pwd ⇒ Object 



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# File 'lib/crane/ftp.rb', line 126

def pwd
  @connection.pwd
end

#remote_dir_exists?(remote_dir = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/crane/ftp.rb', line 60

def remote_dir_exists? remote_dir = false
  return nil if Config.load_config.empty?
  connect(Config.CONFIG[:ftp]) if @connection.nil?
  
  begin
    Timeout.timeout(10) do
      @connection.chdir(remote_dir || Config.CONFIG[:ftp][:remote_root_dir])
    end
  rescue 
    return false
  end
  @connection.close
  true
end