package server import ( "bytes" "context" "encoding/json" "fmt" "log" "strconv" "github.com/Sirupsen/logrus" "github.com/cncd/logging" "github.com/cncd/pipeline/pipeline/rpc" "github.com/cncd/pubsub" "github.com/cncd/queue" "github.com/coreos/go-semver/semver" "github.com/gin-gonic/gin" "github.com/drone/drone/model" "github.com/drone/drone/remote" "github.com/drone/drone/store" "github.com/drone/drone/version" ) // This file is a complete disaster because I'm trying to wedge in some // experimental code. Please pardon our appearance during renovations. // Config is an evil global configuration that will be used as we transition / // refactor the codebase to move away from storing these values in the Context. var Config = struct { Services struct { Pubsub pubsub.Publisher Queue queue.Queue Logs logging.Log Senders model.SenderService Secrets model.SecretService Registries model.RegistryService } Storage struct { // Users model.UserStore // Repos model.RepoStore // Builds model.BuildStore // Logs model.LogStore Files model.FileStore Procs model.ProcStore // Registries model.RegistryStore // Secrets model.SecretStore } Server struct { Key string Cert string Host string Port string Pass string // Open bool // Orgs map[string]struct{} // Admins map[string]struct{} } Pipeline struct { Volumes []string Networks []string Privileged []string } }{} // var config = struct { // pubsub pubsub.Publisher // queue queue.Queue // logger logging.Log // secret string // host string // }{ // pubsub.New(), // queue.New(), // logging.New(), // os.Getenv("DRONE_SECRET"), // os.Getenv("DRONE_HOST"), // } // func SetupRPC() gin.HandlerFunc { // return func(c *gin.Context) { // c.Next() // } // } func RPCHandler(c *gin.Context) { if secret := c.Request.Header.Get("Authorization"); secret != "Bearer "+Config.Server.Pass { log.Printf("Unable to connect agent. Invalid authorization token %q does not match %q", secret, Config.Server.Pass) c.String(401, "Unable to connect agent. Invalid authorization token") return } agent := semver.New( c.Request.Header.Get("X-Drone-Version"), ) logrus.Debugf("agent connected: ip address %s: version %s", c.ClientIP(), agent) if agent.LessThan(version.Version) { logrus.Warnf("Version mismatch. Agent version %s < Server version %s", agent, version.Version) c.String(409, "Version mismatch. Agent version %s < Server version %s", agent, version.Version) return } peer := RPC{ remote: remote.FromContext(c), store: store.FromContext(c), queue: Config.Services.Queue, pubsub: Config.Services.Pubsub, logger: Config.Services.Logs, host: Config.Server.Host, } rpc.NewServer(&peer).ServeHTTP(c.Writer, c.Request) } type RPC struct { remote remote.Remote queue queue.Queue pubsub pubsub.Publisher logger logging.Log store store.Store host string } // Next implements the rpc.Next function func (s *RPC) Next(c context.Context, filter rpc.Filter) (*rpc.Pipeline, error) { fn := func(task *queue.Task) bool { for k, v := range filter.Labels { if task.Labels[k] != v { return false } } return true } task, err := s.queue.Poll(c, fn) if err != nil { return nil, err } else if task == nil { return nil, nil } pipeline := new(rpc.Pipeline) err = json.Unmarshal(task.Data, pipeline) return pipeline, err } // Wait implements the rpc.Wait function func (s *RPC) Wait(c context.Context, id string) error { return s.queue.Wait(c, id) } // Extend implements the rpc.Extend function func (s *RPC) Extend(c context.Context, id string) error { return s.queue.Extend(c, id) } // Update implements the rpc.Update function func (s *RPC) Update(c context.Context, id string, state rpc.State) error { procID, err := strconv.ParseInt(id, 10, 64) if err != nil { return err } pproc, err := s.store.ProcLoad(procID) if err != nil { log.Printf("error: rpc.update: cannot find pproc with id %d: %s", procID, err) return err } build, err := s.store.GetBuild(pproc.BuildID) if err != nil { log.Printf("error: cannot find build with id %d: %s", pproc.BuildID, err) return err } proc, err := s.store.ProcChild(build, pproc.PID, state.Proc) if err != nil { log.Printf("error: cannot find proc with name %s: %s", state.Proc, err) return err } repo, err := s.store.GetRepo(build.RepoID) if err != nil { log.Printf("error: cannot find repo with id %d: %s", build.RepoID, err) return err } if state.Exited { proc.Stopped = state.Finished proc.ExitCode = state.ExitCode proc.Error = state.Error proc.State = model.StatusSuccess if state.ExitCode != 0 || state.Error != "" { proc.State = model.StatusFailure } } else { proc.Started = state.Started proc.State = model.StatusRunning } if err := s.store.ProcUpdate(proc); err != nil { log.Printf("error: rpc.update: cannot update proc: %s", err) } build.Procs, _ = s.store.ProcList(build) build.Procs = model.Tree(build.Procs) message := pubsub.Message{ Labels: map[string]string{ "repo": repo.FullName, "private": strconv.FormatBool(repo.IsPrivate), }, } message.Data, _ = json.Marshal(model.Event{ Repo: *repo, Build: *build, }) s.pubsub.Publish(c, "topic/events", message) return nil } // Upload implements the rpc.Upload function func (s *RPC) Upload(c context.Context, id string, file *rpc.File) error { procID, err := strconv.ParseInt(id, 10, 64) if err != nil { return err } pproc, err := s.store.ProcLoad(procID) if err != nil { log.Printf("error: cannot find parent proc with id %d: %s", procID, err) return err } build, err := s.store.GetBuild(pproc.BuildID) if err != nil { log.Printf("error: cannot find build with id %d: %s", pproc.BuildID, err) return err } proc, err := s.store.ProcChild(build, pproc.PID, file.Proc) if err != nil { log.Printf("error: cannot find child proc with name %s: %s", file.Proc, err) return err } if file.Mime == "application/json+logs" { return s.store.LogSave( proc, bytes.NewBuffer(file.Data), ) } return Config.Storage.Files.FileCreate(&model.File{ BuildID: proc.BuildID, ProcID: proc.ID, Mime: file.Mime, Name: file.Name, Size: file.Size, Time: file.Time, }, bytes.NewBuffer(file.Data), ) } // Init implements the rpc.Init function func (s *RPC) Init(c context.Context, id string, state rpc.State) error { procID, err := strconv.ParseInt(id, 10, 64) if err != nil { return err } proc, err := s.store.ProcLoad(procID) if err != nil { log.Printf("error: cannot find proc with id %d: %s", procID, err) return err } build, err := s.store.GetBuild(proc.BuildID) if err != nil { log.Printf("error: cannot find build with id %d: %s", proc.BuildID, err) return err } repo, err := s.store.GetRepo(build.RepoID) if err != nil { log.Printf("error: cannot find repo with id %d: %s", build.RepoID, err) return err } if build.Status == model.StatusPending { build.Status = model.StatusRunning build.Started = state.Started if err := s.store.UpdateBuild(build); err != nil { log.Printf("error: init: cannot update build_id %d state: %s", build.ID, err) } } defer func() { build.Procs, _ = s.store.ProcList(build) message := pubsub.Message{ Labels: map[string]string{ "repo": repo.FullName, "private": strconv.FormatBool(repo.IsPrivate), }, } message.Data, _ = json.Marshal(model.Event{ Repo: *repo, Build: *build, }) s.pubsub.Publish(c, "topic/events", message) }() proc.Started = state.Started proc.State = model.StatusRunning return s.store.ProcUpdate(proc) } // Done implements the rpc.Done function func (s *RPC) Done(c context.Context, id string, state rpc.State) error { procID, err := strconv.ParseInt(id, 10, 64) if err != nil { return err } proc, err := s.store.ProcLoad(procID) if err != nil { log.Printf("error: cannot find proc with id %d: %s", procID, err) return err } build, err := s.store.GetBuild(proc.BuildID) if err != nil { log.Printf("error: cannot find build with id %d: %s", proc.BuildID, err) return err } repo, err := s.store.GetRepo(build.RepoID) if err != nil { log.Printf("error: cannot find repo with id %d: %s", build.RepoID, err) return err } proc.Stopped = state.Finished proc.Error = state.Error proc.ExitCode = state.ExitCode proc.State = model.StatusSuccess if proc.ExitCode != 0 || proc.Error != "" { proc.State = model.StatusFailure } if err := s.store.ProcUpdate(proc); err != nil { log.Printf("error: done: cannot update proc_id %d state: %s", procID, err) } if err := s.queue.Done(c, id); err != nil { log.Printf("error: done: cannot ack proc_id %d: %s", procID, err) } // TODO handle this error procs, _ := s.store.ProcList(build) for _, p := range procs { if p.Running() && p.PPID == proc.PID { p.State = model.StatusSkipped if p.Started != 0 { p.State = model.StatusSuccess // for deamons that are killed p.Stopped = proc.Stopped } if err := s.store.ProcUpdate(p); err != nil { log.Printf("error: done: cannot update proc_id %d child state: %s", p.ID, err) } } } running := false status := model.StatusSuccess for _, p := range procs { if p.PPID == 0 { if p.Running() { running = true } if p.Failing() { status = p.State } } } if !running { build.Status = status build.Finished = proc.Stopped if err := s.store.UpdateBuild(build); err != nil { log.Printf("error: done: cannot update build_id %d final state: %s", build.ID, err) } // update the status user, err := s.store.GetUser(repo.UserID) if err == nil { if refresher, ok := s.remote.(remote.Refresher); ok { ok, _ := refresher.Refresh(user) if ok { s.store.UpdateUser(user) } } uri := fmt.Sprintf("%s/%s/%d", s.host, repo.FullName, build.Number) err = s.remote.Status(user, repo, build, uri) if err != nil { logrus.Errorf("error setting commit status for %s/%d", repo.FullName, build.Number) } } } if err := s.logger.Close(c, id); err != nil { log.Printf("error: done: cannot close build_id %d logger: %s", proc.ID, err) } build.Procs = model.Tree(procs) message := pubsub.Message{ Labels: map[string]string{ "repo": repo.FullName, "private": strconv.FormatBool(repo.IsPrivate), }, } message.Data, _ = json.Marshal(model.Event{ Repo: *repo, Build: *build, }) s.pubsub.Publish(c, "topic/events", message) return nil } // Log implements the rpc.Log function func (s *RPC) Log(c context.Context, id string, line *rpc.Line) error { entry := new(logging.Entry) entry.Data, _ = json.Marshal(line) s.logger.Write(c, id, entry) return nil }