forked from cozy/cozy-stack
/
exec.go
85 lines (74 loc) · 1.93 KB
/
exec.go
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package mails
import (
"bytes"
"io"
"os"
"github.com/cozy/cozy-stack/model/job"
"github.com/cozy/cozy-stack/pkg/assets"
"github.com/cozy/cozy-stack/pkg/config/config"
"github.com/cozy/cozy-stack/pkg/utils"
"github.com/cozy/cozy-stack/worker/exec"
"github.com/spf13/afero"
)
func execMjml(ctx *job.WorkerContext, template []byte) ([]byte, error) {
log := ctx.Logger()
workDir, cleanDir, err := prepareWorkDir()
defer cleanDir()
if err != nil {
log.Errorf("PrepareWorkDir: %s", err)
return nil, err
}
cmdStr, env := prepareCmdEnv(ctx)
cmd := exec.CreateCmd(cmdStr, workDir)
cmd.Env = env
// Send the template on cozy-mjml stdin
cmd.Stdin = bytes.NewReader(template)
// Log out all things printed in stderr
var stderrBuf bytes.Buffer
cmd.Stderr = utils.LimitWriterDiscard(&stderrBuf, 256*1024)
out, err := cmd.Output()
if stderrBuf.Len() > 0 {
log.Errorf("Stderr: %s", stderrBuf.String())
}
if err != nil {
log.Errorf("Run: %s", err)
return nil, err
}
return out, nil
}
func prepareWorkDir() (string, func(), error) {
cleanDir := func() {}
osFS := afero.NewOsFs()
workDir, err := afero.TempDir(osFS, "", "mjml")
if err != nil {
return "", cleanDir, err
}
cleanDir = func() {
_ = os.RemoveAll(workDir)
}
workFS := afero.NewBasePathFs(osFS, workDir)
dst, err := workFS.OpenFile("index.js", os.O_CREATE|os.O_WRONLY, 0640)
if err != nil {
return "", cleanDir, err
}
f, err := assets.Open("/js/cozy-mjml.js", config.DefaultInstanceContext)
if err != nil {
return "", cleanDir, err
}
_, _ = io.Copy(dst, f)
if err = dst.Close(); err != nil {
return "", cleanDir, err
}
return workDir, cleanDir, err
}
func prepareCmdEnv(ctx *job.WorkerContext) (string, []string) {
cmd := config.GetConfig().Konnectors.Cmd
env := []string{
"COZY_URL=" + ctx.Instance.PageURL("/", nil),
"COZY_LANGUAGE=node",
"COZY_LOCALE=" + ctx.Instance.Locale,
"COZY_TIME_LIMIT=60",
"COZY_JOB_ID=" + ctx.ID(),
}
return cmd, env
}