Migrating the Security Filters

Where possible, we changed noninclusive terms to align with our company value of Equality. We maintained certain terms to avoid any effect on customer implementations.

In Mule 3, the Security Filters where part of the Mule Module Security. In Mule 4, this where migrated to the Mule Validation Module.

IP filters

In mule 3 we had three different options to filter by IP: * <filters:filter-by-ip> * <filters:filter-by-ip-range> * <filters:filter-by-ip-range-cidr>

Filtering By one IP

Example: Filtering by one IP in Mule 3

<filters:filter-by-ip regex="127.0.0.1"/>

This will filter those IPs that matches the regex. In mule4:

Example: Filtering by one IP in Mule 4

<validation:is-blacklisted-ip blacklist="iplist" ip="#[vars.ip]">
<validation:ip-filter-list>
	<validation:ips>
		<validation:ip value="127.0.0.1"/>
	</validation:ips>
</validation:ip-filter-list>

Where is necessary to set that ip variable (or whichever variable suits).

Filtering by range of IPs

In mule 3, we had two ways of defining subnet mask to filter with:

Example: Filtering by IP range in Mule 3

<filters:filter-by-ip-range net="127.0.0.1" mask="255.255.255.0"/>
<!-- or -->
<filters:filter-by-ip-range-cidr cidr="127.0.0.1/24"/>

Both are replaced by:

Example: Filtering by IP range in Mule 4

<validation:is-blacklisted-ip blacklist="iplist" ip="#[vars.ip]">
<validation:ip-filter-list>
	<validation:ips>
		<validation:ip value="127.0.0.1/24"/>
	</validation:ips>
</validation:ip-filter-list>

Where is necessary to set that ip variable (or whichever variable suits).

Are there other similar validations added in mule 4?

Yes, there is also a WhiteList validation, which only allows IPs from a IP Filter List.

Time Expiration Filters

In mule 3 we could filter the message if it had elapsed some defined time from a starting date. For example:

Example: Filtering by elapsed time in Mule 3

<filters:filter-expired dateTime="#[vars.startingTime]" expiresIn="1000"/>

In Mule 4, this validation is in the validations module:

Example: Filtering by elapsed time in Mule 4

<validation:is-not-elapsed time="1" timeUnit="SECONDS" since="#[vars.startingTime]"/>

Are there other similar validations added in mule 4?

Yes, there is also a Time Elapsed validation, which validates if the time elapsed has exceeded a certain amount of time.