/
worker.go
193 lines (166 loc) · 5.48 KB
/
worker.go
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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package import_process
import (
"archive/zip"
"io"
"net/http"
"path/filepath"
"runtime"
"strconv"
"strings"
"github.com/mattermost/mattermost-server/v5/app"
"github.com/mattermost/mattermost-server/v5/app/request"
"github.com/mattermost/mattermost-server/v5/jobs"
tjobs "github.com/mattermost/mattermost-server/v5/jobs/interfaces"
"github.com/mattermost/mattermost-server/v5/model"
"github.com/mattermost/mattermost-server/v5/shared/mlog"
)
func init() {
app.RegisterJobsImportProcessInterface(func(s *app.Server) tjobs.ImportProcessInterface {
a := app.New(app.ServerConnector(s))
return &ImportProcessInterfaceImpl{a}
})
}
type ImportProcessInterfaceImpl struct {
app *app.App
}
type ImportProcessWorker struct {
name string
stopChan chan struct{}
stoppedChan chan struct{}
jobsChan chan model.Job
jobServer *jobs.JobServer
app *app.App
appContext *request.Context
}
func (i *ImportProcessInterfaceImpl) MakeWorker() model.Worker {
return &ImportProcessWorker{
name: "ImportProcess",
stopChan: make(chan struct{}),
stoppedChan: make(chan struct{}),
jobsChan: make(chan model.Job),
jobServer: i.app.Srv().Jobs,
app: i.app,
appContext: &request.Context{},
}
}
func (w *ImportProcessWorker) JobChannel() chan<- model.Job {
return w.jobsChan
}
func (w *ImportProcessWorker) Run() {
mlog.Debug("Worker started", mlog.String("worker", w.name))
defer func() {
mlog.Debug("Worker finished", mlog.String("worker", w.name))
close(w.stoppedChan)
}()
for {
select {
case <-w.stopChan:
mlog.Debug("Worker received stop signal", mlog.String("worker", w.name))
return
case job := <-w.jobsChan:
mlog.Debug("Worker received a new candidate job.", mlog.String("worker", w.name))
w.doJob(&job)
}
}
}
func (w *ImportProcessWorker) Stop() {
mlog.Debug("Worker stopping", mlog.String("worker", w.name))
close(w.stopChan)
<-w.stoppedChan
}
func (w *ImportProcessWorker) doJob(job *model.Job) {
if claimed, err := w.jobServer.ClaimJob(job); err != nil {
mlog.Warn("Worker experienced an error while trying to claim job",
mlog.String("worker", w.name),
mlog.String("job_id", job.Id),
mlog.String("error", err.Error()))
return
} else if !claimed {
return
}
importFileName, ok := job.Data["import_file"]
if !ok {
appError := model.NewAppError("ImportProcessWorker", "import_process.worker.do_job.missing_file", nil, "", http.StatusBadRequest)
w.setJobError(job, appError)
return
}
importFilePath := filepath.Join(*w.app.Config().ImportSettings.Directory, importFileName)
if ok, err := w.app.FileExists(importFilePath); err != nil {
w.setJobError(job, err)
return
} else if !ok {
appError := model.NewAppError("ImportProcessWorker", "import_process.worker.do_job.file_exists", nil, "", http.StatusBadRequest)
w.setJobError(job, appError)
return
}
importFileSize, appErr := w.app.FileSize(importFilePath)
if appErr != nil {
w.setJobError(job, appErr)
return
}
importFile, appErr := w.app.FileReader(importFilePath)
if appErr != nil {
w.setJobError(job, appErr)
return
}
defer importFile.Close()
importZipReader, err := zip.NewReader(importFile.(io.ReaderAt), importFileSize)
if err != nil {
appError := model.NewAppError("ImportProcessWorker", "import_process.worker.do_job.open_file", nil, err.Error(), http.StatusInternalServerError)
w.setJobError(job, appError)
return
}
// find JSONL import file.
var jsonFile io.ReadCloser
for _, f := range importZipReader.File {
if filepath.Ext(f.Name) != ".jsonl" {
continue
}
// avoid "zip slip"
if strings.Contains(f.Name, "..") {
appError := model.NewAppError("ImportProcessWorker", "import_process.worker.do_job.open_file", nil, "jsonFilePath contains path traversal", http.StatusForbidden)
w.setJobError(job, appError)
return
}
jsonFile, err = f.Open()
if err != nil {
appError := model.NewAppError("ImportProcessWorker", "import_process.worker.do_job.open_file", nil, err.Error(), http.StatusInternalServerError)
w.setJobError(job, appError)
return
}
defer jsonFile.Close()
break
}
if jsonFile == nil {
appError := model.NewAppError("ImportProcessWorker", "import_process.worker.do_job.missing_jsonl", nil, "jsonFile was nil", http.StatusBadRequest)
w.setJobError(job, appError)
return
}
// do the actual import.
appErr, lineNumber := w.app.BulkImport(w.appContext, jsonFile, importZipReader, false, runtime.NumCPU())
if appErr != nil {
job.Data["line_number"] = strconv.Itoa(lineNumber)
w.setJobError(job, appErr)
return
}
// remove import file when done.
if appErr := w.app.RemoveFile(importFilePath); appErr != nil {
w.setJobError(job, appErr)
return
}
mlog.Info("Worker: Job is complete", mlog.String("worker", w.name), mlog.String("job_id", job.Id))
w.setJobSuccess(job)
}
func (w *ImportProcessWorker) setJobSuccess(job *model.Job) {
if err := w.app.Srv().Jobs.SetJobSuccess(job); err != nil {
mlog.Error("Worker: Failed to set success for job", mlog.String("worker", w.name), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
w.setJobError(job, err)
}
}
func (w *ImportProcessWorker) setJobError(job *model.Job, appError *model.AppError) {
if err := w.app.Srv().Jobs.SetJobError(job, appError); err != nil {
mlog.Error("Worker: Failed to set job error", mlog.String("worker", w.name), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
}
}