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user_store.go
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user_store.go
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package authn
import (
"strings"
"sync"
"github.com/pkg/errors"
"github.com/rancher/norman/httperror"
"github.com/rancher/norman/store/transform"
"github.com/rancher/norman/types"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/types/client/management/v3"
"github.com/rancher/types/config"
"golang.org/x/crypto/bcrypt"
"k8s.io/client-go/tools/cache"
)
const userByUsernameIndex = "auth.management.cattle.io/user-by-username"
type userStore struct {
types.Store
mu sync.Mutex
userIndexer cache.Indexer
}
func SetUserStore(schema *types.Schema, mgmt *config.ScaledContext) {
userInformer := mgmt.Management.Users("").Controller().Informer()
userIndexers := map[string]cache.IndexFunc{
userByUsernameIndex: userByUsername,
}
userInformer.AddIndexers(userIndexers)
store := &userStore{
Store: schema.Store,
mu: sync.Mutex{},
userIndexer: userInformer.GetIndexer(),
}
t := &transform.Store{
Store: store,
Transformer: func(apiContext *types.APIContext, data map[string]interface{}, opt *types.QueryOptions) (map[string]interface{}, error) {
// filter system users out of the api
if princIds, ok := data[client.UserFieldPrincipalIDs].([]interface{}); ok {
for _, p := range princIds {
pid, _ := p.(string)
if strings.HasPrefix(pid, "system://") {
if opt != nil && opt.Options["ByID"] == "true" {
return nil, httperror.NewAPIError(httperror.NotFound, "resource not found")
}
return nil, nil
}
}
}
// set "me" field on user
userID := apiContext.Request.Header.Get("Impersonate-User")
if userID != "" {
id, ok := data[types.ResourceFieldID].(string)
if ok {
if id == userID {
data["me"] = "true"
}
}
}
return data, nil
},
}
schema.Store = t
}
func userByUsername(obj interface{}) ([]string, error) {
u, ok := obj.(*v3.User)
if !ok {
return []string{}, nil
}
return []string{u.Username}, nil
}
func hashPassword(data map[string]interface{}) error {
pass, ok := data[client.UserFieldPassword].(string)
if !ok {
return errors.New("password not a string")
}
hashed, err := hashPasswordString(pass)
if err != nil {
return err
}
data[client.UserFieldPassword] = string(hashed)
return nil
}
func hashPasswordString(password string) (string, error) {
hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return "", errors.Wrap(err, "problem encrypting password")
}
return string(hash), nil
}
func (s *userStore) Create(apiContext *types.APIContext, schema *types.Schema, data map[string]interface{}) (map[string]interface{}, error) {
if err := hashPassword(data); err != nil {
return nil, err
}
created, err := s.create(apiContext, schema, data)
if err != nil {
return nil, err
}
if id, ok := created[types.ResourceFieldID].(string); ok {
var principalIDs []interface{}
if pids, ok := created[client.UserFieldPrincipalIDs].([]interface{}); ok {
principalIDs = pids
}
created[client.UserFieldPrincipalIDs] = append(principalIDs, "local://"+id)
return s.Update(apiContext, schema, created, id)
}
return created, err
}
func (s *userStore) create(apiContext *types.APIContext, schema *types.Schema, data map[string]interface{}) (map[string]interface{}, error) {
username, ok := data[client.UserFieldUsername].(string)
if !ok {
return nil, errors.New("invalid username")
}
s.mu.Lock()
defer s.mu.Unlock()
users, err := s.userIndexer.ByIndex(userByUsernameIndex, username)
if err != nil {
return nil, err
}
if len(users) > 0 {
return nil, httperror.NewFieldAPIError(httperror.NotUnique, "username", "Username is already in use.")
}
return s.Store.Create(apiContext, schema, data)
}