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|
package shell
import (
"bytes"
"flag"
"fmt"
"io"
"sort"
"strings"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/iam_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
# create a new identity with account information
s3.configure -user=username -actions=Read,Write,List,Tagging -buckets=bucket-name -access_key=key -secret_key=secret -account_id=id -account_display_name=name -account_email=email@example.com -apply
`
}
func (c *commandS3Configure) HasTag(CommandTag) bool {
return false
}
func (c *commandS3Configure) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
s3ConfigureCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
actions := s3ConfigureCommand.String("actions", "", "comma separated actions names: Read,Write,List,Tagging,Admin")
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")
accountId := s3ConfigureCommand.String("account_id", "", "specify the account id")
accountDisplayName := s3ConfigureCommand.String("account_display_name", "", "specify the account display name")
accountEmail := s3ConfigureCommand.String("account_email", "", "specify the account email address")
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
}
// Check which account flags were provided and build update functions
var accountUpdates []func(*iam_pb.Account)
s3ConfigureCommand.Visit(func(f *flag.Flag) {
switch f.Name {
case "account_id":
accountUpdates = append(accountUpdates, func(a *iam_pb.Account) { a.Id = *accountId })
case "account_display_name":
accountUpdates = append(accountUpdates, func(a *iam_pb.Account) { a.DisplayName = *accountDisplayName })
case "account_email":
accountUpdates = append(accountUpdates, func(a *iam_pb.Account) { a.EmailAddress = *accountEmail })
}
})
// Helper function to update account information on an identity
updateAccountInfo := func(account **iam_pb.Account) {
if len(accountUpdates) > 0 {
if *account == nil {
*account = &iam_pb.Account{}
}
for _, update := range accountUpdates {
update(*account)
}
}
}
var buf bytes.Buffer
if err = commandEnv.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
return filer.ReadEntry(commandEnv.MasterClient, client, filer.IamConfigDirectory, filer.IamIdentityFile, &buf)
}); err != nil && err != filer_pb.ErrNotFound {
return err
}
s3cfg := &iam_pb.S3ApiConfiguration{}
if buf.Len() > 0 {
if err = filer.ParseS3ConfigurationFromBytes(buf.Bytes(), s3cfg); err != nil {
return err
}
}
idx := 0
changed := false
if *user != "" {
for i, identity := range s3cfg.Identities {
if *user == identity.Name {
idx = i
changed = true
break
}
}
}
var cmdActions []string
for _, action := range strings.Split(*actions, ",") {
if *buckets == "" {
cmdActions = append(cmdActions, action)
} else {
for _, bucket := range strings.Split(*buckets, ",") {
cmdActions = append(cmdActions, fmt.Sprintf("%s:%s", action, bucket))
}
}
}
if changed {
infoAboutSimulationMode(writer, *apply, "-apply")
if *isDelete {
var exists []int
for _, cmdAction := range cmdActions {
for i, currentAction := range s3cfg.Identities[idx].Actions {
if cmdAction == currentAction {
exists = append(exists, i)
}
}
}
sort.Sort(sort.Reverse(sort.IntSlice(exists)))
for _, i := range exists {
s3cfg.Identities[idx].Actions = append(
s3cfg.Identities[idx].Actions[:i],
s3cfg.Identities[idx].Actions[i+1:]...,
)
}
if *accessKey != "" {
exists = []int{}
for i, credential := range s3cfg.Identities[idx].Credentials {
if credential.AccessKey == *accessKey {
exists = append(exists, i)
}
}
sort.Sort(sort.Reverse(sort.IntSlice(exists)))
for _, i := range exists {
s3cfg.Identities[idx].Credentials = append(
s3cfg.Identities[idx].Credentials[:i],
s3cfg.Identities[idx].Credentials[i+1:]...,
)
}
}
if *actions == "" && *accessKey == "" && *buckets == "" {
s3cfg.Identities = append(s3cfg.Identities[:idx], s3cfg.Identities[idx+1:]...)
}
} else {
if *actions != "" {
for _, cmdAction := range cmdActions {
found := false
for _, action := range s3cfg.Identities[idx].Actions {
if cmdAction == action {
found = true
break
}
}
if !found {
s3cfg.Identities[idx].Actions = append(s3cfg.Identities[idx].Actions, cmdAction)
}
}
}
if *accessKey != "" && *user != "anonymous" {
found := false
for _, credential := range s3cfg.Identities[idx].Credentials {
if credential.AccessKey == *accessKey {
found = true
credential.SecretKey = *secretKey
break
}
}
if !found {
s3cfg.Identities[idx].Credentials = append(s3cfg.Identities[idx].Credentials, &iam_pb.Credential{
AccessKey: *accessKey,
SecretKey: *secretKey,
})
}
}
// Update account information if provided
updateAccountInfo(&s3cfg.Identities[idx].Account)
}
} else if *user != "" && *actions != "" {
infoAboutSimulationMode(writer, *apply, "-apply")
identity := iam_pb.Identity{
Name: *user,
Actions: cmdActions,
Credentials: []*iam_pb.Credential{},
}
if *user != "anonymous" {
identity.Credentials = append(identity.Credentials,
&iam_pb.Credential{AccessKey: *accessKey, SecretKey: *secretKey})
}
// Add account information if provided
updateAccountInfo(&identity.Account)
s3cfg.Identities = append(s3cfg.Identities, &identity)
}
if err = filer.CheckDuplicateAccessKey(s3cfg); err != nil {
return err
}
buf.Reset()
filer.ProtoToText(&buf, s3cfg)
fmt.Fprint(writer, buf.String())
fmt.Fprintln(writer)
if *apply {
if err := commandEnv.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
return filer.SaveInsideFiler(client, filer.IamConfigDirectory, filer.IamIdentityFile, buf.Bytes())
}); err != nil {
return err
}
}
return nil
}
|
