/
token-handler.go
194 lines (175 loc) · 5.41 KB
/
token-handler.go
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package grpc
import (
"context"
"crypto/rand"
"encoding/base64"
"io"
"sync"
"time"
"github.com/ory/fosite/token/hmac"
"github.com/ory/fosite/token/jwt"
"go.uber.org/zap"
"github.com/pydio/cells/v4/common"
"github.com/pydio/cells/v4/common/config"
"github.com/pydio/cells/v4/common/log"
"github.com/pydio/cells/v4/common/proto/auth"
"github.com/pydio/cells/v4/common/service/errors"
json "github.com/pydio/cells/v4/common/utils/jsonx"
"github.com/pydio/cells/v4/common/utils/permissions"
"github.com/pydio/cells/v4/common/utils/uuid"
"github.com/pydio/cells/v4/idm/oauth"
)
var tokensKey []byte
type PatScopeClaims struct {
Scopes []string `json:"scopes"`
}
type PatHandler struct {
dao oauth.DAO
name string
auth.UnimplementedAuthTokenPrunerServer
auth.UnimplementedAuthTokenVerifierServer
auth.UnimplementedPersonalAccessTokenServiceServer
strategy *hmac.HMACStrategy
}
func (p *PatHandler) Name() string {
return p.name
}
func (p *PatHandler) getDao(ctx context.Context) oauth.DAO {
return p.dao
}
func (p *PatHandler) getStrategy() *hmac.HMACStrategy {
if p.strategy == nil {
p.strategy = &hmac.HMACStrategy{
TokenEntropy: 32,
GlobalSecret: p.getKey(),
RotatedGlobalSecrets: nil,
Mutex: sync.Mutex{},
}
}
return p.strategy
}
func (p *PatHandler) getKey() []byte {
if len(tokensKey) > 0 {
return tokensKey
}
cVal := config.Get("defaults", "personalTokens", "secureKey")
if cVal.String() == "" {
tokensKey = p.generateRandomKey(32)
strKey := base64.StdEncoding.EncodeToString(tokensKey)
cVal.Set(strKey)
config.Save(common.PydioSystemUsername, "Creating random key for personal tokens service")
} else if t, e := base64.StdEncoding.DecodeString(cVal.String()); e == nil {
tokensKey = t
} else {
log.Logger(context.Background()).Error("Could not read generated key for personal tokens!", zap.Error(e))
}
return tokensKey
}
func (p *PatHandler) Verify(ctx context.Context, request *auth.VerifyTokenRequest) (*auth.VerifyTokenResponse, error) {
dao := p.getDao(ctx)
if err := p.getStrategy().Validate(request.Token); err != nil {
return nil, errors.Unauthorized("token.invalid", "Cannot validate token")
}
pat, e := dao.Load(request.Token)
if e != nil {
return nil, errors.Unauthorized("token.not.found", "Cannot find corresponding Personal Access Token")
}
// Check Expiration Date
if time.Unix(pat.ExpiresAt, 0).Before(time.Now()) {
return nil, errors.Unauthorized("token.expired", "Personal token is expired")
}
if pat.AutoRefreshWindow > 0 {
// Recompute expire date
pat.ExpiresAt = time.Now().Add(time.Duration(pat.AutoRefreshWindow) * time.Second).Unix()
if er := dao.Store(request.Token, pat, true); er != nil {
return nil, errors.BadRequest("internal.error", "Cannot store updated token "+er.Error())
}
}
cl := jwt.IDTokenClaims{
Subject: pat.UserUuid,
Issuer: "local",
ExpiresAt: time.Unix(pat.ExpiresAt, 0),
Audience: []string{common.ServiceGrpcNamespace_ + common.ServiceToken},
}
if len(pat.Scopes) > 0 {
cl.Extra = map[string]interface{}{
"scopes": pat.Scopes,
}
}
m, _ := json.Marshal(cl)
response := &auth.VerifyTokenResponse{
Success: true,
Data: m,
}
return response, nil
}
func (p *PatHandler) Generate(ctx context.Context, request *auth.PatGenerateRequest) (*auth.PatGenerateResponse, error) {
dao := p.getDao(ctx)
token := &auth.PersonalAccessToken{
Uuid: uuid.New(),
Type: request.Type,
Label: request.Label,
UserUuid: request.UserUuid,
UserLogin: request.UserLogin,
Scopes: request.Scopes,
AutoRefreshWindow: request.AutoRefreshWindow,
ExpiresAt: request.ExpiresAt,
}
if request.AutoRefreshWindow > 0 {
request.ExpiresAt = time.Now().Add(time.Duration(request.AutoRefreshWindow) * time.Second).Unix()
token.ExpiresAt = request.ExpiresAt
} else if request.ExpiresAt > 0 {
token.ExpiresAt = request.ExpiresAt
} else {
return nil, errors.BadRequest("missing.parameters", "Please provide one of ExpiresAt or AutoRefreshWindow")
}
token.CreatedAt = time.Now().Unix()
if uName, _ := permissions.FindUserNameInContext(ctx); uName != "" {
token.CreatedBy = uName
}
accessToken, _, err := p.getStrategy().Generate()
if err != nil {
return nil, err
}
if err := dao.Store(accessToken, token, false); err != nil {
return nil, err
}
response := &auth.PatGenerateResponse{
TokenUuid: token.Uuid,
AccessToken: accessToken,
}
return response, nil
}
func (p *PatHandler) Revoke(ctx context.Context, request *auth.PatRevokeRequest) (*auth.PatRevokeResponse, error) {
dao := p.getDao(ctx)
er := dao.Delete(request.GetUuid())
if er != nil {
return nil, er
} else {
return &auth.PatRevokeResponse{Success: true}, nil
}
}
func (p *PatHandler) List(ctx context.Context, request *auth.PatListRequest) (*auth.PatListResponse, error) {
dao := p.getDao(ctx)
tt, er := dao.List(request.Type, request.ByUserLogin)
if er != nil {
return nil, er
}
return &auth.PatListResponse{
Tokens: tt,
}, nil
}
func (p *PatHandler) PruneTokens(ctx context.Context, request *auth.PruneTokensRequest) (*auth.PruneTokensResponse, error) {
i, e := p.getDao(ctx).PruneExpired()
if e != nil {
return nil, e
}
return &auth.PruneTokensResponse{Count: int32(i)}, nil
}
func (p *PatHandler) generateRandomKey(length int) []byte {
k := make([]byte, length)
if _, err := io.ReadFull(rand.Reader, k); err != nil {
return nil
}
return k
}