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EXPERIMENTAL: Add reader.Checks() & ds.checks implementations (#493)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package ds | ||
|
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| import ( | ||
| "bytes" | ||
|
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| dsr3 "github.com/aserto-dev/go-directory/aserto/directory/reader/v3" | ||
| "github.com/aserto-dev/topaz/resolvers" | ||
|
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| "github.com/open-policy-agent/opa/ast" | ||
| "github.com/open-policy-agent/opa/rego" | ||
| "github.com/open-policy-agent/opa/types" | ||
|
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| "github.com/rs/zerolog" | ||
| "google.golang.org/protobuf/encoding/protojson" | ||
| "google.golang.org/protobuf/proto" | ||
| "google.golang.org/protobuf/types/known/structpb" | ||
| ) | ||
|
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| // RegisterCheck - ds.checks | ||
| // | ||
| // ds.checks({ | ||
| // "object_type": "", | ||
| // "object_id": "", | ||
| // "relation": "", | ||
| // "subject_type": "" | ||
| // "subject_id": "", | ||
| // "trace": false | ||
| // }) | ||
| func RegisterChecks(logger *zerolog.Logger, fnName string, dr resolvers.DirectoryResolver) (*rego.Function, rego.Builtin1) { | ||
| return ®o.Function{ | ||
| Name: fnName, | ||
| Decl: types.NewFunction(types.Args(types.A), types.B), | ||
| Memoize: true, | ||
| }, | ||
| func(bctx rego.BuiltinContext, op1 *ast.Term) (*ast.Term, error) { | ||
| var args dsr3.ChecksRequest | ||
|
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| if err := ast.As(op1.Value, &args); err != nil { | ||
| return nil, err | ||
| } | ||
|
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| if proto.Equal(&args, &dsr3.ChecksRequest{}) { | ||
| return helpMsg(fnName, &dsr3.ChecksRequest{ | ||
| Default: &dsr3.CheckRequest{ | ||
| ObjectType: "", | ||
| ObjectId: "", | ||
| Relation: "", | ||
| SubjectType: "", | ||
| SubjectId: "", | ||
| }, | ||
| Checks: []*dsr3.CheckRequest{ | ||
| { | ||
| ObjectType: "", | ||
| ObjectId: "", | ||
| Relation: "", | ||
| SubjectType: "", | ||
| SubjectId: "", | ||
| }, | ||
| }, | ||
| }) | ||
| } | ||
|
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| if args.Default == nil { | ||
| args.Default = &dsr3.CheckRequest{} | ||
| } | ||
|
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| if args.Checks == nil { | ||
| args.Checks = []*dsr3.CheckRequest{} | ||
| } | ||
|
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| resp, err := dr.GetDS().Checks(bctx.Context, &args) | ||
| if err != nil { | ||
| traceError(&bctx, fnName, err) | ||
| return nil, err | ||
| } | ||
|
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| buf := new(bytes.Buffer) | ||
| if err := ProtoToBuf(buf, resp); err != nil { | ||
| return nil, err | ||
| } | ||
|
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| pbs := structpb.Struct{} | ||
| if err := protojson.Unmarshal(buf.Bytes(), &pbs); err != nil { | ||
| return nil, err | ||
| } | ||
|
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| result := pbs.Fields["checks"].AsInterface().([]interface{}) | ||
|
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| v, err := ast.InterfaceToValue(result) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return ast.NewTerm(v), nil | ||
| } | ||
| } |
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