85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
package push
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"os/exec"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/evcc-io/evcc/util"
|
|
"github.com/evcc-io/evcc/util/request"
|
|
"github.com/kballard/go-shellquote"
|
|
)
|
|
|
|
func init() {
|
|
registry.Add("script", NewScriptFromConfig)
|
|
}
|
|
|
|
// Script implements shell script-based message service and setters
|
|
type Script struct {
|
|
log *util.Logger
|
|
script string
|
|
timeout time.Duration
|
|
}
|
|
|
|
// NewScriptFromConfig creates a Script messenger. Script execution is aborted after given timeout.
|
|
func NewScriptFromConfig(other map[string]interface{}) (Messenger, error) {
|
|
cc := struct {
|
|
CmdLine string
|
|
Timeout time.Duration
|
|
}{
|
|
Timeout: request.Timeout,
|
|
}
|
|
|
|
if err := util.DecodeOther(other, &cc); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
s := &Script{
|
|
log: util.NewLogger("script"),
|
|
script: cc.CmdLine,
|
|
timeout: cc.Timeout,
|
|
}
|
|
|
|
return s, nil
|
|
}
|
|
|
|
// Send calls the script
|
|
func (m *Script) Send(title, msg string) {
|
|
_, err := m.exec(m.script, title, msg)
|
|
if err != nil {
|
|
m.log.ERROR.Printf("exec: %v", err)
|
|
}
|
|
}
|
|
|
|
func (m *Script) exec(script, title, msg string) (string, error) {
|
|
args, err := shellquote.Split(script)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), m.timeout)
|
|
defer cancel()
|
|
|
|
args = append(args, title, msg)
|
|
cmd := exec.CommandContext(ctx, args[0], args[1:]...)
|
|
b, err := cmd.Output()
|
|
|
|
s := strings.TrimSpace(string(b))
|
|
|
|
if err != nil {
|
|
// use STDOUT if available
|
|
var ee *exec.ExitError
|
|
if errors.As(err, &ee) {
|
|
s = strings.TrimSpace(string(ee.Stderr))
|
|
}
|
|
|
|
m.log.ERROR.Printf("%s: %s", strings.Join(args, " "), s)
|
|
return "", err
|
|
}
|
|
|
|
m.log.DEBUG.Printf("%s: %s", strings.Join(args, " "), s)
|
|
|
|
return s, nil
|
|
}
|