External function (extaction)

extaction — a mechanism that allows embedding external links into the main menu. You can specify via COREmanager configuration file a URL for a specific function name. This URL will be used to generate a link in the main menu if no function with that name is registered in the panel.

The following macros can be used in this URL:

$site — the name of the site to which the request was sent (without port number);
$manager — the panel URL to which the request was sent.

Example

For example, you need to add an external link to BILLmanager that will point to yandex.com. To do this:

Create a file with the function description:
Example file with description
```
#cat /usr/local/mgr5/etc/xml/billmgr_mod_menu.xml 

<mgrdata>
<mainmenu level="admin+">
<node name="mainmenuaccount">
<node name="myfunc" />
</node>
</mainmenu>
<handler name="myaddon" type="xml">
<func name="myfunc" />
</handler>
<lang name="en">
<messages name="desktop">
<msg name="menu_myfunc">Yandex</msg>
</messages>
</lang>
</mgrdata>
```
Explanations:
- - <node name="account"> — means that the menu item will be added to the Accounts menu subsection;
  - <node name="myfunc" /> — declares your own function. For the panel to start displaying the new menu item, a function with the corresponding name must exist in the panel.

Declare the function via an add-on:

Example function

<handler name="myaddon" type="xml">
<func name="myfunc" />
</handler>

In the BILLmanager or Clouden configuration file /usr/local/mgr5/etc/billmgr.conf add a link for the menu item described above:
```
extaction myfunc http://yandex.com|http://yandex.com
```