refactor stdapi and lanattacks to use filter_commands

lib/rex/post/meterpreter/ui/console/command_dispatcher/lanattacks/dhcp.rb

@@ -29,7 +29,6 @@ class Console::CommandDispatcher::Lanattacks::Dhcp
       "dhcp_load_options" => "Load DHCP optionis from a datastore",
       "dhcp_log"          => "Log DHCP server activity"
     }
-
     reqs = {
       "dhcp_start"        => [ "lanattacks_start_dhcp" ],
       "dhcp_stop"         => [ "lanattacks_stop_dhcp" ],
@@ -38,19 +37,7 @@ class Console::CommandDispatcher::Lanattacks::Dhcp
       "dhcp_load_options" => [ "lanattacks_set_dhcp_option" ],
       "dhcp_log"          => [ "lanattacks_dhcp_log" ]
     }
-
-    all.delete_if do |cmd, desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/lanattacks/tftp.rb

@@ -27,26 +27,13 @@ class Console::CommandDispatcher::Lanattacks::Tftp
       "tftp_reset"    => "Reset the TFTP server",
       "tftp_add_file" => "Add a file to the TFTP server"
     }
-
     reqs = {
       "tftp_start"    => [ "lanattacks_start_tftp" ],
       "tftp_stop"     => [ "lanattacks_stop_tftp" ],
       "tftp_reset"    => [ "lanattacks_reset_tftp" ],
       "tftp_add_file" => [ "lanattacks_add_tftp_file" ],
     }
-
-    all.delete_if do |cmd, desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/stdapi/fs.rb

@@ -102,18 +102,7 @@ class Console::CommandDispatcher::Stdapi::Fs
       'show_mount' => ['stdapi_fs_mount_show'],
     }
 
-    all.delete_if do |cmd, desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/stdapi/net.rb

@@ -108,18 +108,7 @@ class Console::CommandDispatcher::Stdapi::Net
       'resolve'  => ['stdapi_net_resolve_host'],
     }
 
-    all.delete_if do |cmd, desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/stdapi/sys.rb

@@ -143,19 +143,7 @@ class Console::CommandDispatcher::Stdapi::Sys
       "sysinfo"     => [ "stdapi_sys_config_sysinfo" ],
       "localtime"   => [ "stdapi_sys_config_localtime" ],
     }
-
-    all.delete_if do |cmd, desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/stdapi/ui.rb

@@ -49,19 +49,7 @@ class Console::CommandDispatcher::Stdapi::Ui
         "stdapi_ui_enable_keyboard"
       ]
     }
-
-    all.delete_if do |cmd, desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/stdapi/webcam.rb

@@ -34,18 +34,7 @@ class Console::CommandDispatcher::Stdapi::Webcam
       "webcam_stream" => [ "webcam_start", "webcam_get_frame", "webcam_stop" ],
       "record_mic"    => [ "webcam_audio_record" ]
     }
-
-    all.delete_if do |cmd, _desc|
-      del = false
-      reqs[cmd].each do |req|
-        next if client.commands.include? req
-        del = true
-        break
-      end
-      del
-    end
-
-    all
+    filter_commands(all, reqs)
   end
 
   #