122 lines
2.7 KiB
Go
122 lines
2.7 KiB
Go
// Copyright 2019 Sorint.lab
|
|
//
|
|
// 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 notification
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"context"
|
|
"encoding/json"
|
|
"io"
|
|
"net/http"
|
|
"path"
|
|
"time"
|
|
|
|
"agola.io/agola/internal/etcd"
|
|
rstypes "agola.io/agola/services/runservice/types"
|
|
|
|
"go.etcd.io/etcd/clientv3/concurrency"
|
|
errors "golang.org/x/xerrors"
|
|
)
|
|
|
|
var (
|
|
etcdRunEventsLockKey = path.Join("locks", "runevents")
|
|
)
|
|
|
|
func (n *NotificationService) runEventsHandlerLoop(ctx context.Context) {
|
|
for {
|
|
if err := n.runEventsHandler(ctx); err != nil {
|
|
n.log.Err(err).Send()
|
|
}
|
|
|
|
sleepCh := time.NewTimer(1 * time.Second).C
|
|
select {
|
|
case <-ctx.Done():
|
|
return
|
|
case <-sleepCh:
|
|
}
|
|
}
|
|
}
|
|
|
|
func (n *NotificationService) runEventsHandler(ctx context.Context) error {
|
|
session, err := concurrency.NewSession(n.e.Client(), concurrency.WithTTL(5), concurrency.WithContext(ctx))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Close()
|
|
|
|
m := etcd.NewMutex(session, etcdRunEventsLockKey)
|
|
|
|
if err := m.TryLock(ctx); err != nil {
|
|
if errors.Is(err, etcd.ErrLocked) {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
defer func() { _ = m.Unlock(ctx) }()
|
|
|
|
resp, err := n.runserviceClient.GetRunEvents(ctx, "")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if resp.StatusCode != http.StatusOK {
|
|
return errors.Errorf("http status code: %d", resp.StatusCode)
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
br := bufio.NewReader(resp.Body)
|
|
stop := false
|
|
|
|
var buf bytes.Buffer
|
|
for {
|
|
if stop {
|
|
return nil
|
|
}
|
|
line, err := br.ReadBytes('\n')
|
|
if err != nil {
|
|
if err != io.EOF {
|
|
return err
|
|
}
|
|
if len(line) == 0 {
|
|
return nil
|
|
}
|
|
stop = true
|
|
}
|
|
switch {
|
|
case bytes.HasPrefix(line, []byte("data: ")):
|
|
buf.Write(line[6:])
|
|
case bytes.Equal(line, []byte("\n")):
|
|
data := buf.Bytes()
|
|
buf.Reset()
|
|
|
|
var ev *rstypes.RunEvent
|
|
if err := json.Unmarshal(data, &ev); err != nil {
|
|
return err
|
|
}
|
|
|
|
// TODO(sgotti)
|
|
// this is just a basic handling. Improve it to store received events and
|
|
// their status to etcd so we can also do more logic like retrying and handle
|
|
// multiple kind of notifications (email etc...)
|
|
if err := n.updateCommitStatus(ctx, ev); err != nil {
|
|
n.log.Info().Msgf("failed to update commit status: %v", err)
|
|
}
|
|
|
|
default:
|
|
return errors.Errorf("wrong data")
|
|
}
|
|
}
|
|
}
|