woodpecker/router/middleware/broker.go

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package middleware
import (
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"os"
"sync"
handlers "github.com/drone/drone/server"
"github.com/codegangsta/cli"
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"github.com/drone/mq/logger"
"github.com/drone/mq/server"
"github.com/drone/mq/stomp"
"github.com/Sirupsen/logrus"
"github.com/gin-gonic/gin"
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"github.com/tidwall/redlog"
)
const (
serverKey = "broker"
clientKey = "stomp.client" // mirrored from stomp/context
)
// Broker is a middleware function that initializes the broker
// and adds the broker client to the request context.
func Broker(cli *cli.Context) gin.HandlerFunc {
secret := cli.String("agent-secret")
if secret == "" {
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logrus.Fatalf("fatal error. please provide the DRONE_SECRET")
}
// setup broker logging.
log := redlog.New(os.Stderr)
log.SetLevel(2)
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logger.SetLogger(log)
if cli.Bool("broker-debug") {
log.SetLevel(1)
}
broker := server.NewServer(
server.WithCredentials("x-token", secret),
)
client := broker.Client()
var once sync.Once
return func(c *gin.Context) {
c.Set(serverKey, broker)
c.Set(clientKey, client)
once.Do(func() {
// this is some really hacky stuff
// turns out I need to do some refactoring
// don't judge!
// will fix in 0.6 release
ctx := c.Copy()
client.Connect(
stomp.WithCredentials("x-token", secret),
)
client.Subscribe("/queue/updates", stomp.HandlerFunc(func(m *stomp.Message) {
go handlers.HandleUpdate(ctx, m.Copy())
}))
})
}
}