138 lines
3.7 KiB
Go
138 lines
3.7 KiB
Go
package db
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"net/url"
|
|
"sync"
|
|
|
|
"github.com/go-fed/activity/pub"
|
|
"github.com/go-fed/activity/streams"
|
|
"github.com/go-fed/activity/streams/vocab"
|
|
"github.com/go-pg/pg/v10"
|
|
)
|
|
|
|
type postgresFederation struct {
|
|
locks *sync.Map
|
|
conn *pg.DB
|
|
}
|
|
|
|
func newPostgresFederation(conn *pg.DB) pub.Database {
|
|
return &postgresFederation{
|
|
locks: new(sync.Map),
|
|
conn: conn,
|
|
}
|
|
}
|
|
|
|
/*
|
|
GO-FED DB INTERFACE-IMPLEMENTING FUNCTIONS
|
|
*/
|
|
func (pf *postgresFederation) Lock(ctx context.Context, id *url.URL) error {
|
|
// Before any other Database methods are called, the relevant `id`
|
|
// entries are locked to allow for fine-grained concurrency.
|
|
|
|
// Strategy: create a new lock, if stored, continue. Otherwise, lock the
|
|
// existing mutex.
|
|
mu := &sync.Mutex{}
|
|
mu.Lock() // Optimistically lock if we do store it.
|
|
i, loaded := pf.locks.LoadOrStore(id.String(), mu)
|
|
if loaded {
|
|
mu = i.(*sync.Mutex)
|
|
mu.Lock()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Unlock(ctx context.Context, id *url.URL) error {
|
|
// Once Go-Fed is done calling Database methods, the relevant `id`
|
|
// entries are unlocked.
|
|
|
|
i, ok := pf.locks.Load(id.String())
|
|
if !ok {
|
|
return errors.New("missing an id in unlock")
|
|
}
|
|
mu := i.(*sync.Mutex)
|
|
mu.Unlock()
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) InboxContains(ctx context.Context, inbox *url.URL, id *url.URL) (bool, error) {
|
|
return false, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) GetInbox(ctx context.Context, inboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) SetInbox(ctx context.Context, inbox vocab.ActivityStreamsOrderedCollectionPage) error {
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Owns(ctx context.Context, id *url.URL) (owns bool, err error) {
|
|
return false, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) ActorForOutbox(ctx context.Context, outboxIRI *url.URL) (actorIRI *url.URL, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) ActorForInbox(ctx context.Context, inboxIRI *url.URL) (actorIRI *url.URL, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) OutboxForInbox(ctx context.Context, inboxIRI *url.URL) (outboxIRI *url.URL, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Exists(ctx context.Context, id *url.URL) (exists bool, err error) {
|
|
return false, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Get(ctx context.Context, id *url.URL) (value vocab.Type, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Create(ctx context.Context, asType vocab.Type) error {
|
|
t, err := streams.NewTypeResolver()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err := t.Resolve(ctx, asType); err != nil {
|
|
return err
|
|
}
|
|
asType.GetTypeName()
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Update(ctx context.Context, asType vocab.Type) error {
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Delete(ctx context.Context, id *url.URL) error {
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) GetOutbox(ctx context.Context, outboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) SetOutbox(ctx context.Context, outbox vocab.ActivityStreamsOrderedCollectionPage) error {
|
|
return nil
|
|
}
|
|
|
|
func (pf *postgresFederation) NewID(ctx context.Context, t vocab.Type) (id *url.URL, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Followers(ctx context.Context, actorIRI *url.URL) (followers vocab.ActivityStreamsCollection, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Following(ctx context.Context, actorIRI *url.URL) (followers vocab.ActivityStreamsCollection, err error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (pf *postgresFederation) Liked(ctx context.Context, actorIRI *url.URL) (followers vocab.ActivityStreamsCollection, err error) {
|
|
return nil, nil
|
|
}
|