1 files changed, 526 insertions, 0 deletions
diff --git a/ruby_1_8_5/ext/tk/lib/remote-tk.rb b/ruby_1_8_5/ext/tk/lib/remote-tk.rb
new file mode 100644
index 0000000000..70115a60aa
--- /dev/null
+++ b/ruby_1_8_5/ext/tk/lib/remote-tk.rb
@@ -0,0 +1,526 @@
+#
+#               remote-tk.rb - supports to control remote Tk interpreters
+#                       by Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
+
+if defined? MultiTkIp
+  fail RuntimeError, "'remote-tk' library must be required before requiring 'multi-tk'"
+end
+
+class MultiTkIp; end
+class RemoteTkIp < MultiTkIp; end
+
+class MultiTkIp
+  @@IP_TABLE = {}.taint unless defined?(@@IP_TABLE)
+  @@TK_TABLE_LIST = [].taint unless defined?(@@TK_TABLE_LIST)
+  def self._IP_TABLE; @@IP_TABLE; end
+  def self._TK_TABLE_LIST; @@TK_TABLE_LIST; end
+
+  @flag = true
+  def self._DEFAULT_MASTER
+    # work only once
+    if @flag
+      @flag = nil
+      @@DEFAULT_MASTER
+    else
+      nil
+    end
+  end
+end
+class RemoteTkIp
+  @@IP_TABLE = MultiTkIp._IP_TABLE unless defined?(@@IP_TABLE)
+  @@TK_TABLE_LIST = MultiTkIp._TK_TABLE_LIST unless defined?(@@TK_TABLE_LIST)
+end
+class << MultiTkIp
+  undef _IP_TABLE
+  undef _TK_TABLE_LIST
+end
+
+require 'multi-tk'
+
+class RemoteTkIp
+  if defined?(@@DEFAULT_MASTER)
+    MultiTkIp._DEFAULT_MASTER
+  else
+    @@DEFAULT_MASTER = MultiTkIp._DEFAULT_MASTER
+  end
+end
+
+
+###############################
+
+class << RemoteTkIp
+  undef new_master, new_slave, new_safe_slave
+  undef new_trusted_slave, new_safeTk
+
+  def new(*args, &b)
+    ip = __new(*args)
+    ip.eval_proc(&b) if b
+    ip
+  end
+end
+
+class RemoteTkIp
+  def initialize(remote_ip, displayof=nil, timeout=5)
+    if $SAFE >= 4
+      fail SecurityError, "cannot access another interpreter at level #{$SAFE}"
+    end
+
+    @interp = MultiTkIp.__getip
+    if @interp.safe?
+      fail SecurityError, "safe-IP cannot create RemoteTkIp"
+    end
+
+
+    @interp.allow_ruby_exit = false
+    @appname = @interp._invoke('tk', 'appname')
+    @remote = remote_ip.to_s.dup.freeze
+    if displayof.kind_of?(TkWindow)
+      @displayof = displayof.path.dup.freeze
+    else
+      @displayof = nil
+    end
+    if self.deleted?
+      fail RuntimeError, "no Tk application named \"#{@remote}\""
+    end
+
+    @tk_windows = {}
+    @tk_table_list = []
+    @slave_ip_tbl = {}
+    @slave_ip_top = {}
+
+    @tk_windows.taint unless @tk_windows.tainted?
+    @tk_table_list.taint unless @tk_table_list.tainted?
+    @slave_ip_tbl.taint unless @slave_ip_tbl.tainted?
+    @slave_ip_top.taint unless @slave_ip_top.tainted?
+
+    @system = Object.new
+
+    @threadgroup  = ThreadGroup.new
+
+    @safe_level = [$SAFE]
+
+    @wait_on_mainloop = [true, 0]
+
+    @cmd_queue = Queue.new
+
+=begin
+    @cmd_receiver, @receiver_watchdog = _create_receiver_and_watchdog()
+
+    @threadgroup.add @cmd_receiver
+    @threadgroup.add @receiver_watchdog
+
+    @threadgroup.enclose
+=end
+    @@DEFAULT_MASTER.assign_receiver_and_watchdog(self)
+
+    @@IP_TABLE[@threadgroup] = self
+    @@TK_TABLE_LIST.size.times{ 
+      (tbl = {}).tainted? || tbl.taint
+      @tk_table_list << tbl
+    }
+
+    @ret_val = TkVariable.new
+    if timeout > 0 && ! _available_check(timeout)
+      fail RuntimeError, "cannot create connection"
+    end
+    @ip_id = _create_connection
+
+    class << self
+      undef :instance_eval
+    end
+
+    self.freeze  # defend against modification
+  end
+
+  def manipulable?
+    return true if (Thread.current.group == ThreadGroup::Default)
+    MultiTkIp.__getip == @interp && ! @interp.safe?
+  end
+  def self.manipulable?
+    true
+  end
+
+  def _is_master_of?(tcltkip_obj)
+    tcltkip_obj == @interp
+  end
+  protected :_is_master_of?
+
+  def _ip_id_
+    @ip_id
+  end
+
+  def _available_check(timeout = 5)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    return nil if timeout < 1
+    @ret_val.value = ''
+    @interp._invoke('send', '-async', @remote, 
+                    'send', '-async', Tk.appname, 
+                    "set #{@ret_val.id} ready")
+    Tk.update
+    if @ret_val != 'ready'
+      (1..(timeout*5)).each{
+        sleep 0.2 
+        Tk.update
+        break if @ret_val == 'ready'
+      }
+    end
+    @ret_val.value == 'ready'
+  end
+  private :_available_check
+
+  def _create_connection
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    ip_id = '_' + @interp._invoke('send', @remote, <<-'EOS') + '_'
+      if {[catch {set _rubytk_control_ip_id_} ret] != 0} {
+        set _rubytk_control_ip_id_ 0
+      } else {
+        set _rubytk_control_ip_id_ [expr $ret + 1]
+      }
+      return $_rubytk_control_ip_id_
+    EOS
+
+    @interp._invoke('send', @remote, <<-EOS)
+      proc rb_out#{ip_id} args {
+        send #{@appname} rb_out \$args
+      }
+    EOS
+
+    ip_id
+  end
+  private :_create_connection
+
+  def _appsend(enc_mode, async, *cmds)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    p ['_appsend', [@remote, @displayof], enc_mode, async, cmds] if $DEBUG
+    if $SAFE >= 4
+      fail SecurityError, "cannot send commands at level 4"
+    elsif $SAFE >= 1 && cmds.find{|obj| obj.tainted?}
+      fail SecurityError, "cannot send tainted commands at level #{$SAFE}"
+    end
+
+    cmds = @interp._merge_tklist(*TkUtil::_conv_args([], enc_mode, *cmds))
+    if @displayof
+      if async
+        @interp.__invoke('send', '-async', '-displayof', @displayof, 
+                         '--', @remote, *cmds)
+      else
+        @interp.__invoke('send', '-displayof', @displayof, 
+                         '--', @remote, *cmds)
+      end
+    else
+      if async
+        @interp.__invoke('send', '-async', '--', @remote, *cmds)
+      else
+        @interp.__invoke('send', '--', @remote, *cmds)
+      end
+    end
+  end
+  private :_appsend
+
+  def ready?(timeout=5)
+    if timeout < 0
+      fail ArgumentError, "timeout must be positive number"
+    end
+    _available_check(timeout)
+  end
+
+  def is_rubytk?
+    return false if _appsend(false, false, 'info', 'command', 'ruby') == ""
+    [ _appsend(false, false, 'ruby', 'RUBY_VERSION'), 
+      _appsend(false, false, 'set', 'tk_patchLevel') ]
+  end
+
+  def appsend(async, *args)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    if async != true && async != false && async != nil
+      args.unshift(async)
+      async = false
+    end
+    if @displayof
+      Tk.appsend_displayof(@remote, @displayof, async, *args)
+    else
+      Tk.appsend(@remote, async, *args)
+    end
+  end
+
+  def rb_appsend(async, *args)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    if async != true && async != false && async != nil
+      args.unshift(async)
+      async = false
+    end
+    if @displayof
+      Tk.rb_appsend_displayof(@remote, @displayof, async, *args)
+    else
+      Tk.rb_appsend(@remote, async, *args)
+    end
+  end
+
+  def create_slave(name, safe=false)
+    if safe
+      safe_opt = ''
+    else
+      safe_opt = '-safe'
+    end
+    _appsend(false, false, "interp create #{safe_opt} -- #{name}")
+  end
+
+  def make_safe
+    fail RuntimeError, 'cannot change safe mode of the remote interpreter'
+  end
+
+  def safe?
+    _appsend(false, false, 'interp issafe')
+  end
+
+  def safe_base?
+    false
+  end
+
+  def allow_ruby_exit?
+    false
+  end
+
+  def allow_ruby_exit= (mode)
+    fail RuntimeError, 'cannot change mode of the remote interpreter'
+  end
+
+  def delete
+    _appsend(false, true, 'exit')
+  end
+
+  def deleted?
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    if @displayof
+      lst = @interp._invoke_without_enc('winfo', 'interps', 
+                                        '-displayof', @displayof)
+    else
+      lst = @interp._invoke_without_enc('winfo', 'interps')
+    end
+    # unless @interp._split_tklist(lst).index(@remote)
+    unless @interp._split_tklist(lst).index(_toUTF8(@remote))
+      true
+    else
+      false
+    end
+  end
+
+  def has_mainwindow?
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+
+    begin
+      inf = @interp._invoke_without_enc('info', 'command', '.')
+    rescue Exception
+      return nil
+    end
+    if !inf.kind_of?(String) || inf != '.'
+      false
+    else
+      true
+    end
+  end
+
+  def invalid_namespace?
+    false
+  end
+
+  def restart
+    fail RuntimeError, 'cannot restart the remote interpreter'
+  end
+
+  def __eval(str)
+    _appsend(false, false, str)
+  end
+  def _eval(str)
+    _appsend(nil, false, str)
+  end
+  def _eval_without_enc(str)
+    _appsend(false, false, str)
+  end
+  def _eval_with_enc(str)
+    _appsend(true, false, str)
+  end
+
+  def _invoke(*args)
+    _appsend(nil, false, *args)
+  end
+
+  def __invoke(*args)
+    _appsend(false, false, *args)
+  end
+  def _invoke(*args)
+    _appsend(nil, false, *args)
+  end
+  def _invoke_without_enc(*args)
+    _appsend(false, false, *args)
+  end
+  def _invoke_with_enc(*args)
+    _appsend(true, false, *args)
+  end
+
+  def _toUTF8(str, encoding=nil)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+    @interp._toUTF8(str, encoding)
+  end
+
+  def _fromUTF8(str, encoding=nil)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+    @interp._fromUTF8(str, encoding)
+  end
+
+  def _thread_vwait(var_name)
+    _appsend(false, 'thread_vwait', varname)
+  end
+
+  def _thread_tkwait(mode, target)
+    _appsend(false, 'thread_tkwait', mode, target)
+  end
+
+  def _return_value
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+    @interp._return_value
+  end
+
+  def _get_variable(var_name, flag)
+    # ignore flag
+    _appsend(false, 'set', TkComm::_get_eval_string(var_name))
+  end
+  def _get_variable2(var_name, index_name, flag)
+    # ignore flag
+    _appsend(false, 'set', "#{TkComm::_get_eval_string(var_name)}(#{TkComm::_get_eval_string(index_name)})")
+  end
+
+  def _set_variable(var_name, value, flag)
+    # ignore flag
+    _appsend(false, 'set', TkComm::_get_eval_string(var_name), TkComm::_get_eval_string(value))
+  end
+  def _set_variable2(var_name, index_name, value, flag)
+    # ignore flag
+    _appsend(false, 'set', "#{TkComm::_get_eval_string(var_name)}(#{TkComm::_get_eval_string(index_name)})", TkComm::_get_eval_string(value))
+  end
+
+  def _unset_variable(var_name, flag)
+    # ignore flag
+    _appsend(false, 'unset', TkComm::_get_eval_string(var_name))
+  end
+  def _unset_variable2(var_name, index_name, flag)
+    # ignore flag
+    _appsend(false, 'unset', "#{var_name}(#{index_name})")
+  end
+
+  def _get_global_var(var_name)
+    _appsend(false, 'set', TkComm::_get_eval_string(var_name))
+  end
+  def _get_global_var2(var_name, index_name)
+    _appsend(false, 'set', "#{TkComm::_get_eval_string(var_name)}(#{TkComm::_get_eval_string(index_name)})")
+  end
+
+  def _set_global_var(var_name, value)
+    _appsend(false, 'set', TkComm::_get_eval_string(var_name), TkComm::_get_eval_string(value))
+  end
+  def _set_global_var2(var_name, index_name, value)
+    _appsend(false, 'set', "#{TkComm::_get_eval_string(var_name)}(#{TkComm::_get_eval_string(index_name)})", TkComm::_get_eval_string(value))
+  end
+
+  def _unset_global_var(var_name)
+    _appsend(false, 'unset', TkComm::_get_eval_string(var_name))
+  end
+  def _unset_global_var2(var_name, index_name)
+    _appsend(false, 'unset', "#{var_name}(#{index_name})")
+  end
+
+  def _split_tklist(str)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+    @interp._split_tklist(str)
+  end
+
+  def _merge_tklist(*args)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+    @interp._merge_tklist(*args)
+  end
+
+  def _conv_listelement(str)
+    raise SecurityError, "no permission to manipulate" unless self.manipulable?
+    @interp._conv_listelement(str)
+  end
+
+  def _create_console
+    fail RuntimeError, 'not support "_create_console" on the remote interpreter'
+  end
+
+  def mainloop
+    fail RuntimeError, 'not support "mainloop" on the remote interpreter'
+  end
+  def mainloop_watchdog
+    fail RuntimeError, 'not support "mainloop_watchdog" on the remote interpreter'
+  end
+  def do_one_evant(flag = nil)
+    fail RuntimeError, 'not support "do_one_event" on the remote interpreter'
+  end
+  def mainloop_abort_on_exception
+    fail RuntimeError, 'not support "mainloop_abort_on_exception" on the remote interpreter'
+  end
+  def mainloop_abort_on_exception=(mode)
+    fail RuntimeError, 'not support "mainloop_abort_on_exception=" on the remote interpreter'
+  end
+  def set_eventloop_tick(*args)
+    fail RuntimeError, 'not support "set_eventloop_tick" on the remote interpreter'
+  end
+  def get_eventloop_tick
+    fail RuntimeError, 'not support "get_eventloop_tick" on the remote interpreter'
+  end
+  def set_no_event_wait(*args)
+    fail RuntimeError, 'not support "set_no_event_wait" on the remote interpreter'
+  end
+  def get_no_event_wait
+    fail RuntimeError, 'not support "get_no_event_wait" on the remote interpreter'
+  end
+  def set_eventloop_weight(*args)
+    fail RuntimeError, 'not support "set_eventloop_weight" on the remote interpreter'
+  end
+  def get_eventloop_weight
+    fail RuntimeError, 'not support "get_eventloop_weight" on the remote interpreter'
+  end
+end
+
+class << RemoteTkIp
+  def mainloop(*args)
+    fail RuntimeError, 'not support "mainloop" on the remote interpreter'
+  end
+  def mainloop_watchdog(*args)
+    fail RuntimeError, 'not support "mainloop_watchdog" on the remote interpreter'
+  end
+  def do_one_evant(flag = nil)
+    fail RuntimeError, 'not support "do_one_event" on the remote interpreter'
+  end
+  def mainloop_abort_on_exception
+    fail RuntimeError, 'not support "mainloop_abort_on_exception" on the remote interpreter'
+  end
+  def mainloop_abort_on_exception=(mode)
+    fail RuntimeError, 'not support "mainloop_abort_on_exception=" on the remote interpreter'
+  end
+  def set_eventloop_tick(*args)
+    fail RuntimeError, 'not support "set_eventloop_tick" on the remote interpreter'
+  end
+  def get_eventloop_tick
+    fail RuntimeError, 'not support "get_eventloop_tick" on the remote interpreter'
+  end
+  def set_no_event_wait(*args)
+    fail RuntimeError, 'not support "set_no_event_wait" on the remote interpreter'
+  end
+  def get_no_event_wait
+    fail RuntimeError, 'not support "get_no_event_wait" on the remote interpreter'
+  end
+  def set_eventloop_weight(*args)
+    fail RuntimeError, 'not support "set_eventloop_weight" on the remote interpreter'
+  end
+  def get_eventloop_weight
+    fail RuntimeError, 'not support "get_eventloop_weight" on the remote interpreter'
+  end
+end