forked from TrueCloudLab/restic
98 lines
2.3 KiB
Go
98 lines
2.3 KiB
Go
// b2keys is a small utility for managing Backblaze B2 keys.
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package main
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import (
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"context"
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"flag"
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"fmt"
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"os"
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"time"
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"github.com/google/subcommands"
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"github.com/kurin/blazer/b2"
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)
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const (
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apiID = "B2_ACCOUNT_ID"
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apiKey = "B2_SECRET_KEY"
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)
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func main() {
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subcommands.Register(&create{}, "")
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flag.Parse()
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ctx := context.Background()
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os.Exit(int(subcommands.Execute(ctx)))
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}
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type create struct {
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d *time.Duration
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bucket *string
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pfx *string
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}
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func (c *create) Name() string { return "create" }
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func (c *create) Synopsis() string { return "create a new application key" }
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func (c *create) Usage() string {
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return "b2keys create [-bucket bucket] [-duration duration] [-prefix pfx] name capability [capability ...]"
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}
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func (c *create) SetFlags(fs *flag.FlagSet) {
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c.d = fs.Duration("duration", 0, "the lifetime of the new key")
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c.bucket = fs.String("bucket", "", "limit the key to the given bucket")
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c.pfx = fs.String("prefix", "", "limit the key to the objects starting with prefix")
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}
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func (c *create) Execute(ctx context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
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id := os.Getenv(apiID)
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key := os.Getenv(apiKey)
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if id == "" || key == "" {
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fmt.Fprintf(os.Stderr, "both %s and %s must be set in the environment", apiID, apiKey)
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return subcommands.ExitUsageError
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}
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args := f.Args()
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if len(args) < 2 {
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fmt.Fprintf(os.Stderr, "%s\n", c.Usage())
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return subcommands.ExitUsageError
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}
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name := args[0]
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caps := args[1:]
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var opts []b2.KeyOption
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if *c.d > 0 {
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opts = append(opts, b2.Lifetime(*c.d))
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}
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if *c.pfx != "" {
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opts = append(opts, b2.Prefix(*c.pfx))
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}
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opts = append(opts, b2.Capabilities(caps...))
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client, err := b2.NewClient(ctx, id, key, b2.UserAgent("b2keys"))
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if err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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return subcommands.ExitFailure
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}
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var cr creater = client
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if *c.bucket != "" {
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bucket, err := client.Bucket(ctx, *c.bucket)
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if err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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return subcommands.ExitFailure
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}
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cr = bucket
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}
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b2key, err := cr.CreateKey(ctx, name, opts...)
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if err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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return subcommands.ExitFailure
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}
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fmt.Printf("key=%s, secret=%s\n", b2key.ID(), b2key.Secret())
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return subcommands.ExitSuccess
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}
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type creater interface {
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CreateKey(context.Context, string, ...b2.KeyOption) (*b2.Key, error)
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}
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