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// Copyright 2021 Northern.tech AS
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cli
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/pkg/errors"
"github.com/urfave/cli"
"github.com/mendersoftware/mender-artifact/awriter"
)
func signExisting(c *cli.Context) error {
if c.NArg() == 0 {
return cli.NewExitError("Nothing specified, nothing signed. \nMaybe you wanted"+
" to say 'artifacts sign <pathspec>'?", 1)
}
privateKey, err := getKey(c)
if err != nil {
return cli.NewExitError("Can not use signing key provided: "+err.Error(), 1)
}
if privateKey == nil {
return cli.NewExitError("Missing signing key; "+
"please provide a signing key parameter", 1)
}
artFile := c.Args().First()
outputFile := artFile
if len(c.String("output-path")) > 0 {
outputFile = c.String("output-path")
}
tFile, err := ioutil.TempFile(filepath.Dir(outputFile), "mender-artifact")
if err != nil {
err = errors.Wrap(err, "Can not create temporary file for storing artifact")
return cli.NewExitError(err, 1)
}
defer os.Remove(tFile.Name())
defer tFile.Close()
f, err := os.Open(artFile)
if err != nil {
err = errors.Wrapf(err, "Can not open: %s", artFile)
return cli.NewExitError(err, 1)
}
defer f.Close()
err = awriter.SignExisting(f, tFile, privateKey, c.Bool("force"))
if err == awriter.ErrAlreadyExistingSignature {
return cli.NewExitError(
"Artifact already signed, refusing to re-sign. Use force option to override",
1,
)
} else if err != nil {
return cli.NewExitError(err, 1)
}
if err = tFile.Close(); err != nil {
return err
}
err = os.Rename(tFile.Name(), outputFile)
if err != nil {
return cli.NewExitError("Can not store signed artifact: "+err.Error(), 1)
}
return nil
}
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