s3 configure

weed/shell/command_s3_configure.go

@@ -0,0 +1,160 @@
+package shell
+
+import (
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/s3api"
+	"io"
+	"sort"
+	"strings"
+
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+func init() {
+	Commands = append(Commands, &commandS3Configure{})
+}
+
+type commandS3Configure struct {
+}
+
+func (c *commandS3Configure) Name() string {
+	return "s3.configure"
+}
+
+func (c *commandS3Configure) Help() string {
+	return `configure and apply s3 options for each bucket
+	# see the current configuration file content
+	s3.configure
+	`
+}
+
+func (c *commandS3Configure) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+	s3ConfigureCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	actions := s3ConfigureCommand.String("actions", "", "actions names")
+	user := s3ConfigureCommand.String("user", "", "user name")
+	buckets := s3ConfigureCommand.String("buckets", "", "bucket name")
+	accessKey := s3ConfigureCommand.String("access_key", "", "specify the access key")
+	secretKey := s3ConfigureCommand.String("secret_key", "", "specify the secret key")
+	isDelete := s3ConfigureCommand.Bool("delete", false, "delete users, actions or access keys")
+	apply := s3ConfigureCommand.Bool("apply", false, "update and apply s3 configuration")
+
+	if err = s3ConfigureCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	var identities []*s3api.Identity
+	if err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		request := &filer_pb.LookupDirectoryEntryRequest{
+			Directory: filer.DirectoryEtc,
+			Name:      s3api.S3ConfName,
+		}
+		respLookupEntry, err := filer_pb.LookupEntry(client, request)
+		if err != nil {
+			return err
+		}
+		if err = s3api.LoadS3configFromEntryExtended(&respLookupEntry.Entry.Extended, &identities); err != nil {
+			return err
+		}
+		return nil
+	}); err != nil {
+		return err
+	}
+
+	idx := 0
+	changed := false
+	if *user != "" && *buckets != "" {
+		for i, identity := range identities {
+			if *user == identity.Name {
+				idx = i
+				changed = true
+				break
+			}
+		}
+	}
+	cmdActions := []s3api.Action{}
+	for _, bucket := range strings.Split(*buckets, ",") {
+		for _, action := range strings.Split(*actions, ",") {
+			cmdActions = append(cmdActions, s3api.Action(fmt.Sprintf("%s:%s", action, bucket)))
+		}
+	}
+	cmdCredential := &s3api.Credential{
+		AccessKey: *accessKey,
+		SecretKey: *secretKey,
+	}
+
+	if changed {
+		if *isDelete {
+			exists := []int{}
+			for _, cmdAction := range cmdActions {
+				for i, currentAction := range identities[idx].Actions {
+					if cmdAction == currentAction {
+						exists = append(exists, i)
+					}
+				}
+			}
+			sort.Sort(sort.Reverse(sort.IntSlice(exists)))
+			for _, i := range exists {
+				identities[idx].Actions = append(identities[idx].Actions[:i], identities[idx].Actions[i+1:]...)
+			}
+			if *accessKey != "" {
+				exists = []int{}
+				for i, credential := range identities[idx].Credentials {
+					if credential.AccessKey == *accessKey {
+						exists = append(exists, i)
+					}
+				}
+				sort.Sort(sort.Reverse(sort.IntSlice(exists)))
+				for _, i := range exists {
+					identities[idx].Credentials = append(identities[idx].Credentials[:i], identities[idx].Credentials[:i+1]...)
+				}
+
+			}
+			if *actions == "" && *accessKey == "" {
+				identities = append(identities[:idx], identities[idx+1:]...)
+			}
+		} else {
+			identities[idx].Actions = append(identities[idx].Actions, cmdActions...)
+			identities[idx].Credentials = append(identities[idx].Credentials, &s3api.Credential{
+				AccessKey: *accessKey,
+				SecretKey: *secretKey,
+			})
+		}
+	} else {
+		identity := s3api.Identity{
+			Name:    *user,
+			Actions: cmdActions,
+		}
+		identity.Credentials = append(identity.Credentials, &s3api.Credential{
+			AccessKey: *accessKey,
+			SecretKey: *secretKey,
+		})
+		identities = append(identities, &identity)
+	}
+
+	fmt.Fprintf(writer, fmt.Sprintf("%+v\n", identities))
+	fmt.Fprintln(writer)
+
+	if !*apply {
+		return nil
+	}
+
+	if err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		request := &filer_pb.LookupDirectoryEntryRequest{
+			Directory: filer.DirectoryEtc,
+			Name:      s3api.S3ConfName,
+		}
+		respLookupEntry, err := filer_pb.LookupEntry(client, request)
+		if err != nil {
+			return err
+		}
+		if err = s3api.SaveS3configToEntryExtended(&respLookupEntry.Entry.Extended, &identities); err != nil {
+			return err
+		}
+		return nil
+	}); err != nil {
+		return err
+	}
+	return nil
+}