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Show HN: ILLA is an Open-source alternative to Retool
6 projects | news.ycombinator.com | 19 Nov 2022
Not OP but Authentication is easy, authorization is a cross-cutting concern that often requires custom code. E.g., there are people and teams, both of which can have different kinds of access to something (read/write). Sometimes teams have sub-teams. Do the sub-teams have access to the parent teams' resources and/or vice versa? Also what kind of sharing are you going to support? Do people have to have an account to view stuff shared to them or can you just send a link? There are some efforts to make custom DSLs for describing authorization policies, to avoid cross-cutting code.
Computed fields require different treatment at every level of the stack. This isn't inherently hard, but it is an extra feature these low-code/no-code platforms need. Where things get difficult is inn migrations. It's common for a field that is computed at the beginning to become customizable, or for the computation to change. When that happens, what should the value be for old columns? Computed fields also often pull data from multiple other tables, which may require some combination of custom queries and database optimization.
5 projects | reddit.com/r/ExperiencedDevs | 15 Aug 2022
Oso and OpenFGA are two alternatives that implement Zanzibar-style authorisation.
Decoupling Authorization Logic from Code in NodeJS
4 projects | reddit.com/r/node | 29 Mar 2022
There's Oso as well
Is Datalog a good language for authorization?
4 projects | news.ycombinator.com | 19 Feb 2022
Well this was fun to see! I'm the CTO of Oso, where we're building Polar (the second of the links mentioned https://docs.osohq.com/).
I have a few really minor nitpicks, so will try and make up for it by adding to the discussion :)
First of all, it doesn't really make sense to talk about Datalog as a good language for authorization, because much like with Prolog there doesn't really exist a single implementation of it. OPA's language Rego is a datalog variant, and Polar started out as a Prolog variant (although it's not really recognisable as one any more).
And that's an important point because otherwise it would be pretty reasonable to decide that: logic programming is good for authorization => you should go find the most battle-tested language out there and use that. For example, there's SWI Prolog  and Scryer Prolog  as two of my favourites.
To me, the thing that is mind-blowing about logic programming, is (a) how powerful the paradigm is, and (b) how concisely you can implement a logic programming language. Take miniKanren  which is a full-blown logic language in a few hundred lines of code.
In my mind, the original article makes a decent case that logic programming is a good fit for authorization. And just generally I love anyone bringing attention to that :)
But to me, the reason logic programming is such a solid foundation for authorization logic is the pieces you can build on top of it. For Polar, we've added:
- Types! So you can write authorization logic over your data types and help structure your logic. We've implemented this by simply adding an additional operator into the language that can check types
Hey Rustaceans! Got an easy question? Ask here (52/2021)!
11 projects | reddit.com/r/rust | 27 Dec 2021
First time hearing about rhai, but there's a project in that space called Oso that's authored in Rust and uses a different DSL than Rego. You may or may not find it appealing.
Hey Rustaceans! Got an easy question? Ask here (44/2021)!
5 projects | reddit.com/r/rust | 2 Nov 2021
Authentication is probably the aspect of it that's the weakest. Authorization has a few nice libs, with Oso probably being the nicest, but authentication is mostly roll your own from what I've seen.
We Built a Cross-Platform Library with Rust
3 projects | news.ycombinator.com | 27 Oct 2021
> Hopefully Oso open source their library.
https://github.com/osohq/oso seems to have the core, C FFI, and language bindings.
How to manage multi tenant in fast-api
2 projects | reddit.com/r/FastAPI | 17 Sep 2021
Why Authorization Is Hard
9 projects | news.ycombinator.com | 15 Sep 2021
Hey, Oso engineer here. Good question.
The rust core is indeed called from the ruby library (as it is with all of our 5 other host libraries). The core itself is pretty complex (there's a whole parser/interpreter in there), so maintaining it in a bunch of languages would be a bit hectic.
There are some files inside `lib/oso/polar/ffi` that define the C bindings used by the rest of the library. Here's an example: https://github.com/osohq/oso/blob/main/languages/ruby/lib/os...
We use the ffi gem to make that work: https://github.com/ffi/ffi9 projects | news.ycombinator.com | 15 Sep 2021
It is a wrapper around the Rust code:
- It triggers the rust build in the Makefile: https://github.com/osohq/oso/blob/1d3bf5a4a997a574c2b19084a0...
- There is a bunch of FFI code (also in the ffi directory): https://github.com/osohq/oso/blob/1d3bf5a4a997a574c2b19084a0...
What are some alternatives?
django-guardian - Per object permissions for Django
node-casbin - An authorization library that supports access control models like ACL, RBAC, ABAC in Node.js and Browser
OPA (Open Policy Agent) - An open source, general-purpose policy engine.
Ory Keto - Open Source (Go) implementation of "Zanzibar: Google's Consistent, Global Authorization System". Ships gRPC, REST APIs, newSQL, and an easy and granular permission language. Supports ACL, RBAC, and other access models.
Pundit - Minimal authorization through OO design and pure Ruby classes
cerbos - Cerbos is the open core, language-agnostic, scalable authorization solution that makes user permissions and authorization simple to implement and manage by writing context-aware access control policies for your application resources.
Spoodle - A mass subdomain (Subbrute) + poodle vulnerability scanner
CanCanCan - The authorization Gem for Ruby on Rails.
Carteblanche - Module to align code with thoughts of users and designers. Also magically handles navigation and permissions.