doodle/cmd/doodle-admin/command/sign_level.go

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package command
import (
"fmt"
"strings"
"git.kirsle.net/SketchyMaze/doodle/pkg/level"
"git.kirsle.net/SketchyMaze/doodle/pkg/levelpack"
"git.kirsle.net/SketchyMaze/doodle/pkg/license"
"git.kirsle.net/SketchyMaze/doodle/pkg/license/levelsigning"
"github.com/urfave/cli/v2"
)
// SignLevel a license key for Sketchy Maze.
var SignLevel *cli.Command
func init() {
SignLevel = &cli.Command{
Name: "sign-level",
Usage: "sign a level file so that it may use embedded assets in free versions of the game.",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "key",
Aliases: []string{"k"},
Usage: "Private key .pem file for signing",
Required: true,
},
&cli.StringFlag{
Name: "input",
Aliases: []string{"i"},
Usage: "Input file name (.level or .levelpack)",
Required: true,
},
&cli.StringFlag{
Name: "output",
Aliases: []string{"o"},
Usage: "Output file, default outputs to console",
},
},
Action: func(c *cli.Context) error {
key, err := license.AdminLoadPrivateKey(c.String("key"))
if err != nil {
return cli.Exit(err.Error(), 1)
}
var (
filename = c.String("input")
output = c.String("output")
)
if output == "" {
output = filename
}
// Sign a level?
if strings.HasSuffix(filename, ".level") {
lvl, err := level.LoadJSON(filename)
if err != nil {
return cli.Exit(err.Error(), 1)
}
// Sign it.
if sig, err := levelsigning.SignLevel(key, lvl); err != nil {
return cli.Exit(fmt.Errorf("couldn't sign level: %s", err), 1)
} else {
lvl.Signature = sig
err := lvl.WriteFile(output)
if err != nil {
return cli.Exit(err.Error(), 1)
}
}
} else if strings.HasSuffix(filename, ".levelpack") {
lp, err := levelpack.LoadFile(filename)
if err != nil {
return cli.Exit(err.Error(), 1)
}
// Sign it.
if sig, err := levelsigning.SignLevelPack(key, lp); err != nil {
return cli.Exit(fmt.Errorf("couldn't sign levelpack: %s", err), 1)
} else {
lp.Signature = sig
err := lp.WriteZipfile(output)
if err != nil {
return cli.Exit(err.Error(), 1)
}
}
}
return nil
},
}
}