Commit Graph

37 Commits

Author SHA1 Message Date
Anand Krishnamoorthi 9e43bd9878 fix!: Remove cryptographic builtins (#396)
Cryptographic builtins are removed due to various reasons like FIPS
compliance. Users needing crypto builtins are encouraged to use
extensions.

Deprecated functions are also removed.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2025-04-16 12:24:19 -07:00
Anand Krishnamoorthi 7565ec3ecf feat: or keyword (#315)
Add `or` operator to Rego languages. Available via `rego-extensions`
Cargo feature.

If the evaluated lhs value is not false, null or undefined it is returned.
Otherwise rhs is evaluated and returned.

or operator has least precedence, and is left-associative.

closes #314
2024-09-13 16:39:19 -07:00
Anand Krishnamoorthi 7095e269b7 fix: Handle aliases in scheduler (#285)
Earlier scheduler only recognized rules and would raise an
`unsafe var` error on alias.

Register alias var names to fix this.

fixes #284

Also fix clippy warning treated as error

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-07-27 23:26:53 +05:30
Stuart Neivandt 6e1f8cdb36 build.rs create hooks dir if not exists (#283) 2024-07-21 10:27:51 +05:30
Anand Krishnamoorthi 45627aa64a Suppress clippy unused warning (#269)
The field will be used later.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-06-18 10:28:02 -07:00
Anand Krishnamoorthi e86b590f91 no_std support (#232)
- Disable default features in dependencies
- Use anyhow::Error::msg to map errors. Note: anyhow will itself be removed later.
- lazy_static/spin_no_std used in no_std environments
- ensure_no_std binary is built to target  thumbv7m-none-eabi to ensure that
  there are no std dependencies.  thumbv7m-none-eabi target has no std support.
- The opa-no-std feature enables only those Regorus features that work with no_std.
- Enable tests with no_std
- Update sizes of regorus binary in  README.md
- Ensure that regorus example can be built with only std
- Ensure that regorus example can be built with no_std

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-05-13 06:42:35 -07:00
Anand Krishnamoorthi 01fc234a33 add std feature (#231)
- `std` feature is enabled by default
- By default enable #![no_std] compilation
- Import std create if `std` feature is enabled or if testing
- Use core, alloc types
- Make it clear where std types are being used
- In no std, use BTreeMap in place of HashMap.
   HashMap is not available in no std due to lack of a
   secure random number generator

Note: The project does not yet compile without std feature being specified.
But it's really close to being able to do so.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-05-09 11:28:42 -07:00
Anand Krishnamoorthi 69d6426663 Use alloc, core instead of std (#225)
- Replace std with alloc, core in most places in src
  Tests, bindings aren't changed.
- Introduce BuiltinsMap type alias inplace of HashMap.
  In no_std case, this could be aliases to BTreeMap
- Fix clippy warnings

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-05-07 18:41:09 -07:00
Anand Krishnamoorthi d2049d07f3 Store Value instances in AST for strings, numbers and idents (#197)
This avoids having to create value instances during evaluation

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-04-07 18:21:32 +05:30
Anand Krishnamoorthi 53b990f97d arc feature to enable using Engine and other data structures from multiple threads (#142)
* `arc` feature to make engine usable from multiple threads.

`arc` is turned on by default. When enabled, std::sync::Arc
will be used instead of std::rc::Rc. The former makes regorus
types like Engine, Value, ast nodes etc Send, allowing for
usability from multiple threads.
Arc would add a performance overhead though since the reference
counting will now become atomic.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

* Make engine and related types Debug

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

* Input, Data as json. Evaluate bool queries.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

---------

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-02-13 10:23:19 -08:00
Anand Krishnamoorthi 6eca85b497 Improve crate documentation (#111)
- Document QueryResults
- Delete snippets folder
- Document Value

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-01-19 14:51:14 -08:00
Anand Krishnamoorthi 723c9379a0 Add crate documentation (#106)
- Separate out public, unstable and internal APIs.
- Cleanup README.md and include it as the crate documentation.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-01-14 21:15:48 -08:00
Anand Krishnamoorthi 25dec7e59b OPA conformance: Ensure that withkeyword OPA tests pass (#88)
- ignore worktrees
- feature guard time module
- Apply with modifiers before evaluating loop expressions
- Support value modifier for functions
- stubs for http.send and io.jwt.decode_verify
- Initialize with-document after initializing init data
- In case of conflict, with modifier override init-data values.
- In case of conflict, subsequent with modifier overrides earlier ones.
- Ensure that zero parameter functions are evaluated and added to document
- opa.runtime builtin
  returns:
   - git commit hash
   - environment vars
   - regorus features enabled
   - builtins available
   - deprecated builtins available
- If `sort_bindings` is specified, sort the bindings in OPA tests
- gather inputs, used vars and comprehensions in with modifiers
- For refs starting with `data`, ensure that modules are evaluated before looking up
  value of the expression. Thie ensures that modules that have only been partly populated
  (E.g via with mods) are completely evaluated before the value is looked up
- Mark rules overridden using with modifiers are evaluated.
- Exclude env vars in opa.runtime.
- Include regorus version in OPA runtime
- update to opa v0.60.0
- scheduler: Handle function refs in with modifers. Error out only if
  a truly undefined ref.
- Handle undefined params, parameter expression evaluation errors before
  applying with modifiers.
- When applying with modifiers, first determine whether the target is a
  function. If so, handle cleanly.
- concat: raise error only in strict mode
- In strict mode, propagate errors raised by function rule execution
  in case of multiple function definitions for same rule
- skip "withkeyword/builtin-builtin: arity 0" test which can never pass.
- When a mock has is being applied, clear with_function so that
  other mocks won't be applied during the evaluation of the mock.
- Ability to specify strictness in tests

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2024-01-04 01:13:04 -08:00
Anand Krishnamoorthi e61b406547 OPA conformance (#71)
- Remove unnecessary memory allocations
- Add --non-strict flag
- Ensure that only empty modules (ones without rules) are initialzed prior to evaluating rules.
- Record rule as entry for each of its prefixes.
  For example, for a rule a.b.c =... in package test, record it in
  rules["data.test.a"], rules["data.test.a.b"] and rules["data.test.a.b.c"]

  This allows evaluating the correct list of rules based on expessions
  a.b.c, a.b, a, data.test.a.b.c, data.test.a.b, data.test.a

Closes #69
Closes #70

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-12-23 11:55:25 -08:00
Anand Krishnamoorthi f6140b6be5 More builtins and semantic improvements (#66)
- base64 builtins
- base64url builtins
- jsonschema builtins
- json.remove builtin
- handle composite index variables
- use dashu_float since rust_decimal has lesser precision

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-12-21 13:34:48 -08:00
Anand Krishnamoorthi 73ee18f002 More OPA conformant semantics (#62)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-12-11 09:00:06 -08:00
Anand Krishnamoorthi bb0ca29753 Lock down ACI tests and more OPA test folders (#54)
Borrowed from rego-cpp

Significantly (> 10 times) faster execution.

$ cargo test -r  --test aci
aci/mount_device                                  passed    9.597958ms
aci/mount_overlay                                 passed    10.159208ms
aci/scratch_mount                                 passed    8.598875ms
aci/create_container                              passed    10.237292ms
aci/shutdown_container                            passed    6.904084ms
aci/scratch_unmount                               passed    6.530875ms
aci/unmount_overlay                               passed    5.958875ms
aci/unmount_device                                passed    5.657834ms
aci/load_fragment                                 passed    6.049917ms

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-12-01 08:32:11 -08:00
Anand Krishnamoorthi 639ba72c90 Fix scheduling regression (#53)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-27 10:02:37 -08:00
eric-therond ef36d9bed5 add full api to engine (#50)
Signed-off-by: eric-therond <eric.therond.fr@gmail.com>
2023-11-27 09:08:40 -08:00
Anand Krishnamoorthi 4db2270dcf More library functions (#51)
- units.parse, units.parse_bytes
- json.is_valid, json.marshal, json.unmarshal
- yaml.is_valid, yaml.marshal, yaml.unmarshal
- object.subset
- set_diff

* Also print number of errors due to each missing function
* Also lock down fully passing OPA suites

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-22 14:19:23 -08:00
Anand Krishnamoorthi 72070a7061 Avoid dependency on `source lifetime. (#43)
This allows holding onto objects, caching results etc easily.
However it does introduce the overhead of ref counting.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-15 09:25:12 -08:00
Anand Krishnamoorthi a1d0f8576a Allow with modifier for builtin and user functions (#42)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-12 21:39:59 -08:00
Anand Krishnamoorthi 1c492144b3 Special cases of refs to data (#41)
1. Numeric indices will be converted to strings for refs beginning with `data`
   if there is not valid numeric key
2. Error out if input document already contains value for a ref

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-11 00:15:56 -08:00
Anand Krishnamoorthi 02c6c6b827 Fix scheduling statements that don't create bindings (#40)
Ensure that definitions are added even if no var is being defined.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-09 16:24:43 -08:00
Anand Krishnamoorthi d69b413c8e Engine (#38)
- Avoid lifetime parameter for Source, Span. Use Rc instead.
- Engine for simplified API

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-07 23:15:28 -08:00
Anand Krishnamoorthi a751cd69e1 Use Ref for storing ast nodes in collections. (#37)
cmp, eq is done as pointer comparison which makes retrieval super fast.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-05 22:32:00 -08:00
Anand Krishnamoorthi d3fd0a3a78 all, any deprecated functions (#35)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-04 13:22:40 -07:00
Anand Krishnamoorthi c53d002347 Improvements (#33)
1. Skip recording undefined variables
2. Parse `in` correctly if it is not imported.
3. base64.decode
4. Handle `with` modifier for qualified data and input.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-11-01 21:57:06 -07:00
Anand Krishnamoorthi 519cce5b33 Scheduling of statements in user queries (#31)
Nested queries (comprehensions) are handled correctly.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-10-31 10:52:51 -07:00
Anand Krishnamoorthi 63ecc44a48 eval_user_query for OPA style results (#29)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-10-30 10:44:02 -07:00
Anand Krishnamoorthi 800e594d52 Arity for builtins (#28)
Old-style function call

Utility for running opa yaml tests

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-10-24 10:11:50 -07:00
Anand Krishnamoorthi 951bb6b14c Handle chained _ (#27)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-10-17 19:32:42 -07:00
eric-therond 2ba718ba72 improve errors location (#23)
Signed-off-by: eric-therond <eric.therond.fr@gmail.com>
2023-09-27 09:41:30 -07:00
Anand Krishnamoorthi 796da46ae8 Ensure that scopes are cleaned up correctly upon error. (#20)
When evaluating rules, upon error the last pushed scope wasn't being
popped from the stack of scopes. This causes incorrect behavior
when there are multiple definitions for the same rule name.

The fix is to make sure that the scopes are popped manually upon encountering errors.

Once the interpreter logic is locked down, then we need to clean up scope management
using Drop functions so that the cleanup happens even during short circuited return.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-06-23 08:57:47 -07:00
Anand Krishnamoorthi 7789de41b6 Statement Scheduler Implementation
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-04-09 20:28:59 -07:00
Anand Krishnamoorthi 8e0ddbcff2 Support dependencies between vars defined in same statement
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-02-28 09:38:40 +05:30
Anand Krishnamoorthi 34eee1f17f Statement scheduler (WIP)
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
2023-02-28 09:38:40 +05:30