feat: use short tokens as access tokens

The "real" access token will be stored using the short token as key.
This short token will be sent to the clients to be used as access token
for the WOPI server.

This is configurable, and requires a store in order to keep the tokens.

services/collaboration/pkg/command/server.go

@@ -6,6 +6,7 @@ import (
 	"net"
 
 	"github.com/cs3org/reva/v2/pkg/rgrpc/todo/pool"
+	"github.com/cs3org/reva/v2/pkg/store"
 	"github.com/oklog/run"
 	"github.com/owncloud/ocis/v2/ocis-pkg/config/configlog"
 	registry "github.com/owncloud/ocis/v2/ocis-pkg/registry"
@@ -19,6 +20,7 @@ import (
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/server/grpc"
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/server/http"
 	"github.com/urfave/cli/v2"
+	microstore "go-micro.dev/v4/store"
 )
 
 // Server is the entrypoint for the server command.
@@ -70,12 +72,22 @@ func Server(cfg *config.Config) *cli.Command {
 				return err
 			}
 
+			st := store.Create(
+				store.Store(cfg.Store.Store),
+				store.TTL(cfg.Store.TTL),
+				microstore.Nodes(cfg.Store.Nodes...),
+				microstore.Database(cfg.Store.Database),
+				microstore.Table(cfg.Store.Table),
+				store.Authentication(cfg.Store.AuthUsername, cfg.Store.AuthPassword),
+			)
+
 			// start GRPC server
 			grpcServer, teardown, err := grpc.Server(
 				grpc.AppURLs(appUrls),
 				grpc.Config(cfg),
 				grpc.Logger(logger),
 				grpc.TraceProvider(traceProvider),
+				grpc.Store(st),
 			)
 			defer teardown()
 			if err != nil {
@@ -113,11 +125,12 @@ func Server(cfg *config.Config) *cli.Command {
 
 			// start HTTP server
 			httpServer, err := http.Server(
-				http.Adapter(connector.NewHttpAdapter(gatewaySelector, cfg)),
+				http.Adapter(connector.NewHttpAdapter(gatewaySelector, cfg, st)),
 				http.Logger(logger),
 				http.Config(cfg),
 				http.Context(ctx),
 				http.TracerProvider(traceProvider),
+				http.Store(st),
 			)
 			if err != nil {
 				logger.Error().Err(err).Str("transport", "http").Msg("Failed to initialize server")