qasim/sshfs-mapper/map.rb

104 lines
2 KiB
Ruby

require 'rubygems'
require 'rdebug/base'
module SshfsMapper
class Map
attr_reader :path,
:host,
:port,
:enable,
:user,
:map
class MapParseError < RuntimeError
end
CYPHER_ARCFOUR = :arcfour
CYPHER_AES256CBC = :"aes-256-cbc"
CYPHERS = [ CYPHER_ARCFOUR, CYPHER_AES256CBC ]
def initialize map_path
@path = map_path
@host = nil
@port = 22
@enable = false
@user = nil
@cypher = :arcfour
@maps = {}
@debug = false
self.load @path
end
def load path=nil
@path=path unless path.nil?
rdebug "Parsing map #{@path}"
f = File.open @path
linect = 0
f.each do |line|
line = line.strip
linect += 1
case line
when /^\s*REMOTE_USER\s*=\s*(.*)\s*$/ then
@user = $1
rdebug "d: remote_user => #{$1}"
when /^\s*REMOTE_PORT\s*=\s*(.*)\s*$/ then
@port = $1.to_i
rdebug "d: remote_port => #{$1}"
when /^\s*REMOTE_HOST\s*=\s*(.*)\s*$/ then
@host = $1
rdebug "d: remote_host => #{$1}"
when /^\s*REMOTE_CYPHER\s*=\s*(.*)\s*$/ then
if CYPHERS.map{|x| x.to_s}.include? $1 then
@host = $1.to_sym
end
when /^\s*MAP\s*=\s*(.*)\s+(.*)\s*$/ then
@maps[$1] = $2
rdebug "d: map #{$1} => #{$2}"
when /^\s*$/,/^\s*#/ then
rdebug "d: dropping empty line"
else
raise MapParseError, "parse error at #{@path}:#{linect}"
end
end
f.close
end
def write path=nil
@path=path unless path.nil?
File.open @path, "w" do |f|
f.puts "REMOTE_USER=%s" % @user
f.puts "REMOTE_PORT=%s" % @port
f.puts "REMOTE_HOST=%s" % @host
f.puts "REMOTE_CYPHER=%s" % @cypher
end
end
def alive?
#FIXME: test liveness
end
def connected?
#FIXME test if connected / mounted
end
def connect
puts "[#{File.basename @path}] Connecting..."
puts " #{@user}@#{@host}:#{@port}"
puts " maps = %s" % @maps.map{ |k,v| "%s => %s" % [ k, v ] }.join(', ')
# do something
# test server connection
# mount
end
def disconnect
puts "Disconnecting map #{@path}"
# umount
end
end
end