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grpc_pubsub.go
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grpc_pubsub.go
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pubsub
import (
"context"
pbtypes "github.com/gogo/protobuf/types"
"go.thethings.network/lorawan-stack/pkg/auth/rights"
"go.thethings.network/lorawan-stack/pkg/errors"
"go.thethings.network/lorawan-stack/pkg/events"
"go.thethings.network/lorawan-stack/pkg/log"
"go.thethings.network/lorawan-stack/pkg/ttnpb"
"go.thethings.network/lorawan-stack/pkg/unique"
)
// appendImplicitPubSubGetPaths appends implicit ttnpb.ApplicationPubSub get paths to paths.
func appendImplicitPubSubGetPaths(paths ...string) []string {
return append(append(make([]string, 0, 3+len(paths)),
"format",
"provider",
"base_topic",
), paths...)
}
// GetFormats implements ttnpb.ApplicationPubSubRegistryServer.
func (ps *PubSub) GetFormats(ctx context.Context, _ *pbtypes.Empty) (*ttnpb.ApplicationPubSubFormats, error) {
fs := make(map[string]string, len(formats))
for key, val := range formats {
fs[key] = val.Name
}
return &ttnpb.ApplicationPubSubFormats{
Formats: fs,
}, nil
}
// Get implements ttnpb.ApplicationPubSubRegistryServer.
func (ps *PubSub) Get(ctx context.Context, req *ttnpb.GetApplicationPubSubRequest) (*ttnpb.ApplicationPubSub, error) {
if err := rights.RequireApplication(ctx, req.ApplicationIdentifiers, ttnpb.RIGHT_APPLICATION_TRAFFIC_READ); err != nil {
return nil, err
}
return ps.registry.Get(ctx, req.ApplicationPubSubIdentifiers, appendImplicitPubSubGetPaths(req.FieldMask.Paths...))
}
// List implements ttnpb.ApplicationPubSubRegistryServer.
func (ps *PubSub) List(ctx context.Context, req *ttnpb.ListApplicationPubSubsRequest) (*ttnpb.ApplicationPubSubs, error) {
if err := rights.RequireApplication(ctx, req.ApplicationIdentifiers, ttnpb.RIGHT_APPLICATION_TRAFFIC_READ); err != nil {
return nil, err
}
pubsubs, err := ps.registry.List(ctx, req.ApplicationIdentifiers, appendImplicitPubSubGetPaths(req.FieldMask.Paths...))
if err != nil {
return nil, err
}
return &ttnpb.ApplicationPubSubs{
Pubsubs: pubsubs,
}, nil
}
// Set implements ttnpb.ApplicationPubSubRegistryServer.
func (ps *PubSub) Set(ctx context.Context, req *ttnpb.SetApplicationPubSubRequest) (*ttnpb.ApplicationPubSub, error) {
if err := rights.RequireApplication(ctx, req.ApplicationIdentifiers,
ttnpb.RIGHT_APPLICATION_SETTINGS_BASIC,
ttnpb.RIGHT_APPLICATION_TRAFFIC_READ,
ttnpb.RIGHT_APPLICATION_TRAFFIC_DOWN_WRITE,
); err != nil {
return nil, err
}
// Get all the fields here for starting the integration task.
pubsub, err := ps.registry.Set(ctx, req.ApplicationPubSubIdentifiers, appendImplicitPubSubGetPaths(req.FieldMask.Paths...),
func(pubsub *ttnpb.ApplicationPubSub) (*ttnpb.ApplicationPubSub, []string, error) {
if pubsub != nil {
return &req.ApplicationPubSub, req.FieldMask.Paths, nil
}
return &req.ApplicationPubSub, append(req.FieldMask.Paths,
"ids.application_ids",
"ids.pub_sub_id",
), nil
},
)
if err != nil {
return nil, err
}
if err := ps.stop(ctx, req.ApplicationPubSubIdentifiers); err != nil && !errors.IsNotFound(err) {
log.FromContext(ctx).WithFields(log.Fields(
"application_uid", unique.ID(ctx, req.ApplicationIdentifiers),
"pub_sub_id", req.PubSubID,
)).WithError(err).Warn("Failed to cancel integration")
}
ps.startTask(ps.ctx, req.ApplicationPubSubIdentifiers)
events.Publish(evtSetPubSub(ctx, req.ApplicationIdentifiers, req.ApplicationPubSubIdentifiers))
return pubsub, nil
}
// Delete implements ttnpb.ApplicationPubSubRegistryServer.
func (ps *PubSub) Delete(ctx context.Context, ids *ttnpb.ApplicationPubSubIdentifiers) (*pbtypes.Empty, error) {
if err := rights.RequireApplication(ctx, ids.ApplicationIdentifiers,
ttnpb.RIGHT_APPLICATION_SETTINGS_BASIC,
ttnpb.RIGHT_APPLICATION_TRAFFIC_READ,
ttnpb.RIGHT_APPLICATION_TRAFFIC_DOWN_WRITE,
); err != nil {
return nil, err
}
if err := ps.stop(ctx, *ids); err != nil {
log.FromContext(ctx).WithFields(log.Fields(
"application_uid", unique.ID(ctx, ids.ApplicationIdentifiers),
"pub_sub_id", ids.PubSubID,
)).WithError(err).Warn("Failed to cancel integration")
}
_, err := ps.registry.Set(ctx, *ids, nil,
func(pubsub *ttnpb.ApplicationPubSub) (*ttnpb.ApplicationPubSub, []string, error) {
return nil, nil, nil
},
)
if err != nil {
return nil, err
}
events.Publish(evtDeletePubSub(ctx, ids.ApplicationIdentifiers, *ids))
return ttnpb.Empty, nil
}