add application/x-sigstore-tle as response type

openapi.yaml

@@ -187,6 +187,9 @@ paths:
           required: true
           minimum: 0
           description: specifies the index of the entry in the transparency log to be retrieved
+      produces:
+        - application/json
+        - application/x-sigstore-tle
       responses:
         200:
           description: the entry in the transparency log requested along with an inclusion proof
@@ -211,6 +214,9 @@ paths:
           required: true
           pattern: '^([0-9a-fA-F]{64}|[0-9a-fA-F]{80})$'
           description: the UUID of the entry for which the inclusion proof information should be returned
+      produces:
+        - application/json
+        - application/x-sigstore-tle
       responses:
         200:
           description: Information needed for a client to compute the inclusion proof
@@ -233,6 +239,9 @@ paths:
           required: true
           schema:
             $ref: '#/definitions/SearchLogQuery'
+      produces:
+        - application/json
+        - application/x-sigstore-tle
       responses:
         200:
           description: Returns zero or more entries from the transparency log, according to how many were included in request query

pkg/client/rekor_client.go

@@ -26,6 +26,7 @@ import (
 	"github.com/hashicorp/go-cleanhttp"
 	retryablehttp "github.com/hashicorp/go-retryablehttp"
 	"github.com/sigstore/rekor/pkg/generated/client"
+	"github.com/sigstore/rekor/pkg/tle"
 	"github.com/sigstore/rekor/pkg/util"
 )
 
@@ -64,7 +65,9 @@ func GetRekorClient(rekorServerURL string, opts ...Option) (*client.Rekor, error
 	rt := httptransport.NewWithClient(url.Host, url.Path, []string{url.Scheme}, httpClient)
 	rt.Consumers["application/json"] = runtime.JSONConsumer()
 	rt.Consumers["application/x-pem-file"] = runtime.TextConsumer()
+	rt.Consumers[tle.TLEMediaType] = &tle.Consumer{}
 	rt.Producers["application/json"] = runtime.JSONProducer()
+	rt.DefaultMediaType = "application/json"
 
 	registry := strfmt.Default
 	registry.Add("signedCheckpoint", &util.SignedNote{}, util.SignedCheckpointValidator)

pkg/generated/restapi/configure_rekor_server.go

@@ -46,6 +46,7 @@ import (
 	"github.com/sigstore/rekor/pkg/generated/restapi/operations/pubkey"
 	"github.com/sigstore/rekor/pkg/generated/restapi/operations/tlog"
 	"github.com/sigstore/rekor/pkg/log"
+	"github.com/sigstore/rekor/pkg/tle"
 	"github.com/sigstore/rekor/pkg/util"
 
 	"golang.org/x/exp/slices"
@@ -88,6 +89,7 @@ func configureAPI(api *operations.RekorServerAPI) http.Handler {
 	api.JSONProducer = runtime.JSONProducer()
 
 	api.ApplicationXPemFileProducer = runtime.TextProducer()
+	api.ApplicationXSigstoreTleProducer = &tle.Producer{}
 
 	// disable all endpoints to start
 	api.IndexSearchIndexHandler = index.SearchIndexHandlerFunc(pkgapi.SearchIndexNotImplementedHandler)
@@ -159,6 +161,8 @@ func configureAPI(api *operations.RekorServerAPI) http.Handler {
 	api.ServerShutdown = func() {
 		pkgapi.StopAPI()
 	}
+	// the trailing space is intentional to cause checking to fail inside go-openapi but ordering to be enforced from openapi.yaml
+	api.SetDefaultProduces("application/json ")
 
 	return setupGlobalMiddleware(api.Serve(setupMiddlewares))
 }