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[#72] authmate: Add session token

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Signed-off-by: Angira Kekteeva <kira@nspcc.ru>
This commit is contained in:
Angira Kekteeva 2021-06-16 23:09:51 +03:00
parent 0814bf3d01
commit 44da6cf70c
4 changed files with 124 additions and 28 deletions
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31
README.md
View file

@ -231,13 +231,18 @@ used to create new AWS credentials.
#### Issuance of a secret
To issue a secret means to create a Bearer token and put it as an object into
container on the NeoFS network. The token is encrypted by a set of gateway
keys, so you need to pass them as well.
To issue a secret means to create a Bearer and (optionally) Session tokens and
put them as an object into container on the NeoFS network. The tokens are
encrypted by a set of gateway keys, so you need to pass them as well.
If a parameter `container-id` is not set, a new container will be created.
If a parameter `rules` is not set, it will be auto-generated with values:
Creation of the bearer token is mandatory, and creation of the session token is
optional. If you want to add the session token you need to add a parameter
`create-session-token`.
Rules for bearer token can be set via param `bearer-rules`, if it is not set,
it will be auto-generated with values:
```
{
@ -264,13 +269,27 @@ If a parameter `rules` is not set, it will be auto-generated with values:
}
```
Rules for session token can be set via param `session-rules`, default value is:
```
{
"verb": "PUT",
"wildcard": true,
"containerID": null
}
```
If `session-rules` is set, but `create-session-token` is not, the session
token will not be created.
Example of a command to issue a secret with custom rules for multiple gates:
```
$ ./neofs-authmate issue-secret --neofs-key user.key \
--peer 192.168.130.71:8080 \
--rules '{"records":[{"operation":"PUT","action":"ALLOW","filters":[],"targets":[{"role":"OTHERS","keys":[]}]}]}' \
--bearer-rules '{"records":[{"operation":"PUT","action":"ALLOW","filters":[],"targets":[{"role":"OTHERS","keys":[]}]}]}' \
--gate-public-key dd34f6dce9a4ce0990869ec6bd33a40e102a5798881cfe61d03a5659ceee1a64 \
--gate-public-key 20453af9d7f245ff6fdfb1260eaa411ae3be9c519a2a9bf1c98233522cbd0156
--gate-public-key 20453af9d7f245ff6fdfb1260eaa411ae3be9c519a2a9bf1c98233522cbd0156 \
--create-session-token \
--session-rules '{"verb":"DELETE","wildcard":false,"containerID":{"value":"%CID"}}'
{
"access_key_id": "5g933dyLEkXbbAspouhPPTiyLZRg4axBW1axSPD87eVT_AiXsH4AjYy1iTJ4C1WExzjBrSobJsQFWEyKLREe5sQYM",

96
authmate/authmate.go
View file

@ -12,12 +12,14 @@ import (
"strconv"
"time"
"github.com/google/uuid"
"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
"github.com/nspcc-dev/neofs-api-go/pkg/container"
cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
"github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
"github.com/nspcc-dev/neofs-api-go/pkg/session"
"github.com/nspcc-dev/neofs-api-go/pkg/token"
"github.com/nspcc-dev/neofs-node/pkg/policy"
"github.com/nspcc-dev/neofs-s3-gw/creds/accessbox"
@ -53,6 +55,8 @@ type (
OwnerPrivateKey hcs.PrivateKey
GatesPublicKeys []hcs.PublicKey
EACLRules []byte
ContextRules []byte
SessionTkn bool
}
// ObtainSecretOptions contains options for passing to Agent.ObtainSecret method.
@ -138,35 +142,64 @@ func (a *Agent) IssueSecret(ctx context.Context, w io.Writer, options *IssueSecr
return err
}
a.log.Info("prepare eACL table")
box.SetOwnerPublicKey(options.OwnerPrivateKey.PublicKey())
table, err := buildEACLTable(cid, options.EACLRules)
oid, err := ownerIDFromNeoFSKey(&options.NeoFSKey.PublicKey)
if err != nil {
return err
}
a.log.Info("prepare eACL table")
bearerRules, err := buildEACLTable(cid, options.EACLRules)
if err != nil {
return fmt.Errorf("failed to build eacl table: %w", err)
}
tkn, err := buildBearerToken(options.NeoFSKey, table)
bearerTkn, err := buildBearerToken(options.NeoFSKey, oid, bearerRules)
if err != nil {
return fmt.Errorf("failed to build bearer token: %w", err)
}
box.SetOwnerPublicKey(options.OwnerPrivateKey.PublicKey())
err = box.AddBearerToken(tkn, options.OwnerPrivateKey, options.GatesPublicKeys...)
err = box.AddBearerToken(bearerTkn, options.OwnerPrivateKey, options.GatesPublicKeys...)
if err != nil {
return fmt.Errorf("failed to add token to accessbox: %w", err)
return fmt.Errorf("failed to add bearer token to accessbox: %w", err)
}
a.log.Info("store bearer token into NeoFS",
zap.Stringer("owner_tkn", bearerTkn.Issuer()))
if options.SessionTkn {
sessionRules, err := buildContext(options.ContextRules)
if err != nil {
return fmt.Errorf("failed to build context for session token: %w", err)
}
sessionTkn, err := buildSessionToken(options.NeoFSKey, oid, sessionRules)
if err != nil {
return fmt.Errorf("failed to create session token: %w", err)
}
err = box.AddSessionToken(sessionTkn, options.OwnerPrivateKey, options.GatesPublicKeys...)
if err != nil {
return fmt.Errorf("failed to add session token to accessbox: %w", err)
}
}
a.log.Info("store bearer token into NeoFS",
zap.Stringer("owner_tkn", tkn.Issuer()))
if !options.SessionTkn && len(options.ContextRules) > 0 {
_, err := w.Write([]byte("Warning: rules for session token were set but --create-session flag wasn't, " +
"so session token was not created\n"))
if err != nil {
return err
}
}
address, err := tokens.
New(a.pool, options.OwnerPrivateKey).
Put(ctx, cid, tkn.Issuer(), &box, options.GatesPublicKeys...)
Put(ctx, cid, oid, &box, options.GatesPublicKeys...)
if err != nil {
return fmt.Errorf("failed to put bearer token: %w", err)
}
secret, err := BearerToAccessKey(tkn)
secret, err := BearerToAccessKey(bearerTkn)
if err != nil {
return fmt.Errorf("failed to get bearer token secret key: %w", err)
}
@ -267,13 +300,23 @@ func buildEACLTable(cid *cid.ID, eaclTable []byte) (*eacl.Table, error) {
return table, nil
}
func buildBearerToken(key *ecdsa.PrivateKey, table *eacl.Table) (*token.BearerToken, error) {
wallet, err := owner.NEO3WalletFromPublicKey(&key.PublicKey)
if err != nil {
return nil, err
}
oid := owner.NewIDFromNeo3Wallet(wallet)
func buildContext(rules []byte) (*session.ContainerContext, error) {
sessionCtx := session.NewContainerContext() // wildcard == true on by default
if len(rules) != 0 {
// cast ToV2 temporary, because there is no method for unmarshalling in ContainerContext in api-go
err := sessionCtx.ToV2().UnmarshalJSON(rules)
if err != nil {
return nil, fmt.Errorf("failed to read rules for session token: %w", err)
}
return sessionCtx, nil
}
sessionCtx.ForPut()
sessionCtx.ApplyTo(nil)
return sessionCtx, nil
}
func buildBearerToken(key *ecdsa.PrivateKey, oid *owner.ID, table *eacl.Table) (*token.BearerToken, error) {
bearerToken := token.NewBearerToken()
bearerToken.SetEACLTable(table)
bearerToken.SetOwner(oid)
@ -282,6 +325,19 @@ func buildBearerToken(key *ecdsa.PrivateKey, table *eacl.Table) (*token.BearerTo
return bearerToken, bearerToken.SignToken(key)
}
func buildSessionToken(key *ecdsa.PrivateKey, oid *owner.ID, ctx *session.ContainerContext) (*session.Token, error) {
tok := session.NewToken()
tok.SetContext(ctx)
uid, err := uuid.New().MarshalBinary()
if err != nil {
return nil, err
}
tok.SetID(uid)
tok.SetOwnerID(oid)
return tok, tok.Sign(key)
}
// BearerToAccessKey returns secret access key generated from given BearerToken.
func BearerToAccessKey(tkn *token.BearerToken) (string, error) {
data, err := tkn.Marshal()
@ -292,3 +348,11 @@ func BearerToAccessKey(tkn *token.BearerToken) (string, error) {
hash := sha256.Sum256(data)
return hex.EncodeToString(hash[:]), nil
}
func ownerIDFromNeoFSKey(key *ecdsa.PublicKey) (*owner.ID, error) {
wallet, err := owner.NEO3WalletFromPublicKey(key)
if err != nil {
return nil, err
}
return owner.NewIDFromNeo3Wallet(wallet), nil
}

21
cmd/authmate/main.go
View file

@ -37,6 +37,7 @@ var (
neoFSKeyPathFlag string
peerAddressFlag string
eaclRulesFlag string
contextRulesFlag string
gatePrivateKeyFlag string
accessKeyIDFlag string
ownerPrivateKeyFlag string
@ -46,6 +47,7 @@ var (
gatesKeysCountFlag int
logEnabledFlag bool
logDebugEnabledFlag bool
sessionTokenFlag bool
)
var zapConfig = zap.Config{
@ -198,11 +200,17 @@ func issueSecret() *cli.Command {
Destination: &peerAddressFlag,
},
&cli.StringFlag{
Name: "rules",
Usage: "eacl rules as plain json string",
Name: "bearer-rules",
Usage: "rules for bearer token as plain json string",
Required: false,
Destination: &eaclRulesFlag,
},
&cli.StringFlag{
Name: "session-rules",
Usage: "rules for session token as plain json string",
Required: false,
Destination: &contextRulesFlag,
},
&cli.StringSliceFlag{
Name: "gate-public-key",
Usage: "public x25519 key of a gate (use flags repeatedly for multiple gates)",
@ -228,6 +236,13 @@ func issueSecret() *cli.Command {
Destination: &containerFriendlyName,
Value: "auth-container",
},
&cli.BoolFlag{
Name: "create-session-token",
Usage: "create session token",
Required: false,
Destination: &sessionTokenFlag,
Value: false,
},
},
Action: func(c *cli.Context) error {
ctx, log := prepare()
@ -275,6 +290,8 @@ func issueSecret() *cli.Command {
OwnerPrivateKey: owner.PrivateKey(),
GatesPublicKeys: gatesPublicKeys,
EACLRules: []byte(eaclRulesFlag),
ContextRules: []byte(contextRulesFlag),
SessionTkn: sessionTokenFlag,
}
if err = agent.IssueSecret(ctx, os.Stdout, issueSecretOptions); err != nil {

4
go.sum
View file

@ -342,10 +342,6 @@ github.com/nspcc-dev/neofs-crypto v0.3.0 h1:zlr3pgoxuzrmGCxc5W8dGVfA9Rro8diFvVnB
github.com/nspcc-dev/neofs-crypto v0.3.0/go.mod h1:8w16GEJbH6791ktVqHN9YRNH3s9BEEKYxGhlFnp0cDw=
github.com/nspcc-dev/neofs-node v1.22.0 h1:TJ4d5zopItYYWMEajegVWBgAw8HjZFe12IkNm3Tt+rk=
github.com/nspcc-dev/neofs-node v1.22.0/go.mod h1:ecpXrzIe1vcp5FBjPsIaHKVIVvxsv4GVBCw21WYcY3c=
github.com/nspcc-dev/neofs-sdk-go v0.0.0-20210604112451-f16d38c7b92a h1:bVvyR+Y+UmElTFKY0ifjtvWteYSm93jihKV1rh4wW5s=
github.com/nspcc-dev/neofs-sdk-go v0.0.0-20210604112451-f16d38c7b92a/go.mod h1:1djNrOkpTTbNUlJM/MvTmohJUaWKUMy9JHSCCA8rJEc=
github.com/nspcc-dev/neofs-sdk-go v0.0.0-20210609143631-0d3c078a0d9b h1:2alc6tGPHScEATOxlrYuHCTl+DbhVaqigT5Bo1QXY90=
github.com/nspcc-dev/neofs-sdk-go v0.0.0-20210609143631-0d3c078a0d9b/go.mod h1:1djNrOkpTTbNUlJM/MvTmohJUaWKUMy9JHSCCA8rJEc=
github.com/nspcc-dev/neofs-sdk-go v0.0.0-20210615074944-86a9aa92599b h1:l99sCKR/mt+iFb4p1836qtoXUQEGYlEzqWAeAliEaE8=
github.com/nspcc-dev/neofs-sdk-go v0.0.0-20210615074944-86a9aa92599b/go.mod h1:1djNrOkpTTbNUlJM/MvTmohJUaWKUMy9JHSCCA8rJEc=
github.com/nspcc-dev/rfc6979 v0.1.0/go.mod h1:exhIh1PdpDC5vQmyEsGvc4YDM/lyQp/452QxGq/UEso=