This module implements XEP-0258: Security Labels in XMPP, but not actual policy enforcement. See for example mod_firewall for that.
As with all modules, you enable it by adding it to the modules_enabled list.
These options exist:
| Name | Description | Default | 
|---|---|---|
| security_catalog_name | Catalouge name | “Default” | 
| security_catalog_desc | Catalouge description | “My labels” | 
You can then add your labels in a table called security_labels. They can be both orderd and unorderd, but ordered comes first.
security_labels = {
  { -- This label will come first
    name = "Public",
    label = true, -- This is a label, but without the actual label.
      default = true -- This is the default label.
  },
  {
    name = "Private",
    label = "PRIVATE",
    color = "white",
    bgcolor = "blue"
  },
  Sensitive = { -- A Sub-selector
    SECRET = { -- The index is used as name
      label = true
    },
    TOPSECRET = { -- The order of this and the above is not guaranteed.
      color = "red",
      bgcolor = "black",
    }
  }
}Each label can have the following properties:
| Name | Description | Default | 
|---|---|---|
| name | The name of the label. Used for selector. | Required. | 
| label | The actual label, ie
<esssecuritylabel/> | 
Required, can be boolean for a empty label, or a string. | 
| display | The text shown as display marking. | Defaults to the name | 
| color, bgcolor | The fore- and background color of the display marking | None | 
| default | Boolean, true for the default. Only one may be default. | false | 
With the plugin installer in Prosody 0.12 you can use:
sudo prosodyctl install --server=https://modules.prosody.im/rocks/ mod_seclabels
          For earlier versions see the documentation for installing 3rd party modules