Adding an opa plugin

authbridge/authlib/go.mod

@@ -7,30 +7,71 @@ require (
 	github.com/fsnotify/fsnotify v1.10.1
 	github.com/gobwas/glob v0.2.3
 	github.com/lestrrat-go/jwx/v2 v2.1.6
+	github.com/open-policy-agent/opa v1.4.2
 	github.com/spiffe/go-spiffe/v2 v2.6.0
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171
 	google.golang.org/grpc v1.81.1
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/agnivade/levenshtein v1.2.1 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bytecodealliance/wasmtime-go/v3 v3.0.2 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cncf/xds/go v0.0.0-20260202195803-dba9d589def2 // indirect
+	github.com/containerd/containerd v1.7.32 // indirect
+	github.com/containerd/errdefs v1.0.0 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.3.3 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
-	github.com/kr/text v0.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/gorilla/mux v1.8.1 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.2 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/lestrrat-go/blackmagic v1.0.3 // indirect
 	github.com/lestrrat-go/httpcc v1.0.1 // indirect
 	github.com/lestrrat-go/httprc v1.0.6 // indirect
 	github.com/lestrrat-go/iter v1.0.2 // indirect
 	github.com/lestrrat-go/option v1.0.1 // indirect
+	github.com/moby/locker v1.0.1 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.1 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
+	github.com/prometheus/client_golang v1.21.1 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.62.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/rcrowley/go-metrics v0.0.0-20200313005456-10cdbea86bc0 // indirect
 	github.com/segmentio/asm v1.2.0 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/tchap/go-patricia/v2 v2.3.2 // indirect
+	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
+	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
+	github.com/yashtewari/glob-intersection v0.2.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
+	go.opentelemetry.io/otel v1.43.0 // indirect
+	go.opentelemetry.io/otel/metric v1.43.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.43.0 // indirect
+	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	golang.org/x/crypto v0.48.0 // indirect
 	golang.org/x/net v0.51.0 // indirect
+	golang.org/x/sync v0.20.0 // indirect
 	golang.org/x/sys v0.42.0 // indirect
 	golang.org/x/text v0.34.0 // indirect
+	golang.org/x/time v0.12.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
+	oras.land/oras-go/v2 v2.5.0 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
 )

authbridge/authlib/plugins/README.md

@@ -17,6 +17,7 @@ Built-in plugins and the open plugin registry. Plugin authoring docs live under
 | `mcp-parser` | Parse Model Context Protocol traffic into `Extensions.MCP` |
 | `inference-parser` | Parse OpenAI-style / Ollama inference traffic into `Extensions.Inference` |
 | [`ibac`](../../docs/ibac-plugin.md) | Outbound Intent-Based Access Control: LLM judge denies outbound HTTP that doesn't align with the user's most recent intent. Catches prompt-injection / data-exfiltration attempts |
+| `opa` | OPA policy evaluation on inbound and outbound requests via bundle download |
 
 ## Reusable building blocks for plugin authors