raja 0.4.3

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RAJA

Resource Authorization JWT Authority - Compile Cedar policies into JWT tokens for deterministic authorization.

What is RAJA?

RAJA compiles Cedar authorization policies into JWT tokens with explicit scopes. This means:

• Authorization decisions are deterministic (same token + request = same result)
• Tokens are transparent (you can see exactly what permissions are granted)
• Enforcement is fast (simple scope checking, no policy evaluation)

Quick Start

Installation

git clone https://github.com/quiltdata/raja.git
cd raja
uv sync

Deploy to AWS (Control Plane)

# Deploy infrastructure
./poe deploy

# Load Cedar policies
python scripts/load_policies.py

# Compile policies to scopes
export RAJA_API_URL="https://your-api.execute-api.us-east-1.amazonaws.com/prod"
python scripts/invoke_compiler.py

Control Plane UI

After deployment, open the API Gateway URL in your browser. The root path (/) renders a simple admin UI with live data from /principals, /policies, and /audit.

How It Works

Cedar Policies → Compiler → JWT Scopes → Library Enforcement

1. Write Cedar policies that define who can do what
2. Compiler converts policies into scope strings (e.g., Document:doc123:read)
3. Token Service issues JWTs containing these scopes
4. Applications validate tokens and check scopes locally

API Endpoints

When deployed to AWS, RAJA provides:

POST /compile - Compile Cedar policies into scopes

{}
→ {"message": "Policies compiled successfully", "policies_compiled": 3}

POST /token - Issue a JWT token

{"principal": "alice"}
→ {"token": "eyJ...", "scopes": ["S3Object:analytics-data/*:s3:GetObject", "S3Bucket:analytics-data:s3:ListBucket"]}

GET /principals - List principals and their scopes

→ {"principals": [{"principal": "alice", "scopes": [...]}]}

**GET /policies** - List Cedar policies

```json
→ {"policies": [{"policyId": "..."}]}

GET /audit - View audit log entries

Query params:
  principal=<principal>
  action=<action>
  resource=<resource>
  start_time=<epoch-seconds>
  end_time=<epoch-seconds>
  limit=<1-200>
  next_token=<pagination-token>

Response fields include: timestamp, principal, action, resource, decision,
policy_store_id, request_id.

Local Development

Use the Python library standalone (no AWS required):

from raja import AuthRequest, create_token, enforce

# Create token with S3 scopes
token = create_token(
    subject="alice",
    scopes=[
        "S3Object:analytics-data/*:s3:GetObject",
        "S3Bucket:analytics-data:s3:ListBucket"
    ],
    secret="your-secret"
)

# Check authorization for S3 GetObject
decision = enforce(
    token_str=token,
    request=AuthRequest(
        resource_type="S3Object",
        resource_id="analytics-data/reports/2024.csv",
        action="s3:GetObject"
    ),
    secret="your-secret"
)
print(decision.allowed)  # True

Run Tests

./poe test-unit    # Unit tests (no AWS)
./poe test         # All tests
./poe check        # Format, lint, typecheck

Demo RAJEE Envoy S3 Proxy

To demonstrate RAJEE's Envoy proxy correctly routing S3 operations:

./poe demo

This runs verbose integration tests showing:

• S3 operations (PUT, GET, DELETE, LIST) proxied through Envoy
• Host header rewriting (Envoy endpoint → s3.amazonaws.com)
• Multiple S3 API operations (GetObject, ListObjects, GetObjectAttributes, versioning)
• Timing metrics for each operation
• Complete request/response verification

Scope Format

Scopes follow the pattern: {ResourceType}:{ResourceId}:{Action}

Examples:

• S3Object:analytics-data/reports/2024.csv:s3:GetObject - Read specific S3 object
• S3Object:analytics-data/*:s3:GetObject - Read all objects in bucket
• S3Bucket:analytics-data:s3:ListBucket - List bucket contents
• *:*:* - Full admin access

Project Structure

raja/
├── src/raja/           # Core Python library
├── lambda_handlers/    # AWS Lambda handlers
├── infra/             # CDK infrastructure
├── policies/          # Sample Cedar policies
└── tests/             # Test suite

Documentation

• CLAUDE.md - Developer guide and architecture
• specs/ - Design specifications
• Module READMEs - See CLAUDE.md files in subdirectories

Contributing

See CLAUDE.md for development guidelines.

License

Apache License 2.0 - See LICENSE for details.