gotosocial/internal/processing/stream/stream.go

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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package stream
import (
"sync"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/stream"
)
type Processor struct {
state *state.State
oauthServer oauth.Server
streamMap sync.Map
}
func New(state *state.State, oauthServer oauth.Server) Processor {
return Processor{
state: state,
oauthServer: oauthServer,
}
}
// toAccount streams the given payload with the given event type to any streams currently open for the given account ID.
func (p *Processor) toAccount(payload string, event string, streamTypes []string, accountID string) error {
// Load all streams open for this account.
v, ok := p.streamMap.Load(accountID)
if !ok {
return nil // No entry = nothing to stream.
}
streamsForAccount := v.(*stream.StreamsForAccount) //nolint:forcetypeassert
streamsForAccount.Lock()
defer streamsForAccount.Unlock()
for _, s := range streamsForAccount.Streams {
s.Lock()
defer s.Unlock()
if !s.Connected {
continue
}
typeLoop:
for _, streamType := range streamTypes {
if _, found := s.StreamTypes[streamType]; found {
s.Messages <- &stream.Message{
Stream: []string{streamType},
Event: string(event),
Payload: payload,
}
// Break out to the outer loop,
// to avoid sending duplicates of
// the same event to the same stream.
break typeLoop
}
}
}
return nil
}