mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
120 lines
3 KiB
Go
120 lines
3 KiB
Go
package shell
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import (
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"context"
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"flag"
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"fmt"
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"io"
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"net"
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"os"
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"strings"
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"time"
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"unicode"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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)
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func init() {
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Commands = append(Commands, &commandS3BucketCreate{})
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}
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type commandS3BucketCreate struct {
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}
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func (c *commandS3BucketCreate) Name() string {
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return "s3.bucket.create"
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}
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func (c *commandS3BucketCreate) Help() string {
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return `create a bucket with a given name
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Example:
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s3.bucket.create -name <bucket_name>
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`
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}
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func (c *commandS3BucketCreate) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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bucketCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
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bucketName := bucketCommand.String("name", "", "bucket name")
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if err = bucketCommand.Parse(args); err != nil {
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return nil
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}
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if *bucketName == "" {
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return fmt.Errorf("empty bucket name")
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}
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err = verifyS3BucketName(*bucketName)
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if err != nil {
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return err
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}
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err = commandEnv.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
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if err != nil {
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return fmt.Errorf("get filer configuration: %v", err)
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}
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filerBucketsPath := resp.DirBuckets
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println("create bucket under", filerBucketsPath)
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entry := &filer_pb.Entry{
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Name: *bucketName,
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IsDirectory: true,
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Attributes: &filer_pb.FuseAttributes{
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Mtime: time.Now().Unix(),
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Crtime: time.Now().Unix(),
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FileMode: uint32(0777 | os.ModeDir),
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},
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}
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if err := filer_pb.CreateEntry(client, &filer_pb.CreateEntryRequest{
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Directory: filerBucketsPath,
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Entry: entry,
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}); err != nil {
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return err
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}
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println("created bucket", *bucketName)
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return nil
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})
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return err
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}
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// https://docs.aws.amazon.com/AmazonS3/latest/userguide/bucketnamingrules.html
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func verifyS3BucketName(name string) (err error) {
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if len(name) < 3 || len(name) > 63 {
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return fmt.Errorf("bucket name must between [3, 63] characters")
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}
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for idx, ch := range name {
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if !(unicode.IsLower(ch) || ch == '.' || ch == '-' || unicode.IsNumber(ch)) {
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return fmt.Errorf("bucket name can only contain lower case characters, numbers, dots, and hyphens")
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}
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if idx > 0 && (ch == '.' && name[idx-1] == '.') {
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return fmt.Errorf("bucket names must not contain two adjacent periods")
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}
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//TODO buckets with s3 transfer accleration cannot have . in name
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}
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if name[0] == '.' || name[0] == '-' {
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return fmt.Errorf("name must start with number or lower case character")
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}
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if name[len(name)-1] == '.' || name[len(name)-1] == '-' {
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return fmt.Errorf("name must end with number or lower case character")
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}
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if strings.HasPrefix(name, "xn--") {
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return fmt.Errorf("prefix xn-- is a reserved and not allowed in bucket prefix")
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}
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if strings.HasSuffix(name, "-s3alias") {
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return fmt.Errorf("suffix -s3alias is a reserved and not allowed in bucket suffix")
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}
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if net.ParseIP(name) != nil {
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return fmt.Errorf("bucket name cannot be ip addresses")
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}
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return nil
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} |