Enforcer Downloads

Introduced shared conditions. Shared conditions allow pieces of conditional logic to be written once and re-used in rule/policy and policyset condition and target clauses. In addition to reusing logic, naming pieces of logic makes ALFA even more readable. 

See documentation for more info.

• .NET 8 Support
• Shared Rules
• Pre-compile policies before the first request for a quicker first evaluation
• Visual Studio and Visual Studio Code tooling, improved IntelliSense

If an Attribute Value Provider, that requires a HTTPContext is used without a HTTPContext being present then the policy evaluation can fail with a Null Reference Exception. This prevents a call to the PEP at startup to pre-compile the policies. This has now been resolved

The following code can now be used to pre-compile the policies

var scope = app.Services.CreateScope();

IPolicyEnforcementPoint pep = scope
.ServiceProvider
.GetRequiredService<IPolicyEnforcementPoint>();

var warmUpResult = pep.Evaluate(new DynamicAttributeValueProvider()).Result;

• Improved IDE tools, VSCode and Visual Studio 2022
  • Goto definition, policies and attributes
  • Refactoring, global renaming of policies and attributes
  • Find all references to policies and attributes
  • Code lens - number of usages
  • Hover over call sites to obtain insight into parameters
• Cancellation support throughout APIs
• Function call definitions allow arguments to be named for greater clarity at the call site
• Alfa files now get compiled as separate files. Produces more accurate compiler error location

Note 3.0 has breaking changes with 2.x. Changes to Policy Store and cancellation has changed some APIs.

• Dynamic policy root, useful for solutions wishing to select root policy based on tenant 
  • See docs for more information
• Visual Studio 2022 ALFA plugin

• Support for remote invocation of the PDP. Provides HTTP endpoint to invoke PDP, allowing policies to be executed from any platform and centralised in a single policy server.
• Implicit conversion of single values to bags when binding to a function parameter of type bag

See the documentation and the sample code to use Enforcer in a distributed architecture.

• Support for .NET 7
• StartsWith, EndsWith, Contains can now take a bag as the query

• Fixed precedence issue with 'not' operator
  • not first and second, resulted in not (first and second) as opposed to (not first) and (second)

• Fixes variable argument binding when no variable arguments are supplied
  E.g. Concatenate("first", "second") would fail to bind whereas 
  Concatenate("first","second","third") would bind

• Restored compatibility with RSK.Enforcer.AspNetCore which was broken in 1.1.4

• Supports .NET Framework 4.6.1+

• 5 x speed up in record based attribute provider

• Support for API Deny handlers
• Http Attribute Value Provider