feat: Add ent-based sqlite3 storage

Signed-off-by: m.nabokikh <maksim.nabokikh@flant.com>

storage/ent/client/password.go

@@ -0,0 +1,100 @@
+package client
+
+import (
+	"context"
+	"strings"
+
+	"github.com/dexidp/dex/storage"
+	"github.com/dexidp/dex/storage/ent/db/password"
+)
+
+// CreatePassword saves provided password into the database.
+func (d *Database) CreatePassword(password storage.Password) error {
+	_, err := d.client.Password.Create().
+		SetEmail(password.Email).
+		SetHash(password.Hash).
+		SetUsername(password.Username).
+		SetUserID(password.UserID).
+		Save(context.TODO())
+	if err != nil {
+		return convertDBError("create password: %w", err)
+	}
+	return nil
+}
+
+// ListPasswords extracts an array of passwords from the database.
+func (d *Database) ListPasswords() ([]storage.Password, error) {
+	passwords, err := d.client.Password.Query().All(context.TODO())
+	if err != nil {
+		return nil, convertDBError("list passwords: %w", err)
+	}
+
+	storagePasswords := make([]storage.Password, 0, len(passwords))
+	for _, p := range passwords {
+		storagePasswords = append(storagePasswords, toStoragePassword(p))
+	}
+	return storagePasswords, nil
+}
+
+// GetPassword extracts a password from the database by email.
+func (d *Database) GetPassword(email string) (storage.Password, error) {
+	email = strings.ToLower(email)
+	passwordFromStorage, err := d.client.Password.Query().
+		Where(password.Email(email)).
+		Only(context.TODO())
+	if err != nil {
+		return storage.Password{}, convertDBError("get password: %w", err)
+	}
+	return toStoragePassword(passwordFromStorage), nil
+}
+
+// DeletePassword deletes a password from the database by email.
+func (d *Database) DeletePassword(email string) error {
+	email = strings.ToLower(email)
+	_, err := d.client.Password.Delete().
+		Where(password.Email(email)).
+		Exec(context.TODO())
+	if err != nil {
+		return convertDBError("delete password: %w", err)
+	}
+	return nil
+}
+
+// UpdatePassword changes a password by email using an updater function and saves it to the database.
+func (d *Database) UpdatePassword(email string, updater func(old storage.Password) (storage.Password, error)) error {
+	email = strings.ToLower(email)
+
+	tx, err := d.client.Tx(context.TODO())
+	if err != nil {
+		return convertDBError("update connector tx: %w", err)
+	}
+
+	passwordToUpdate, err := tx.Password.Query().
+		Where(password.Email(email)).
+		Only(context.TODO())
+	if err != nil {
+		return rollback(tx, "update password database: %w", err)
+	}
+
+	newPassword, err := updater(toStoragePassword(passwordToUpdate))
+	if err != nil {
+		return rollback(tx, "update password updating: %w", err)
+	}
+
+	_, err = tx.Password.Update().
+		Where(password.Email(newPassword.Email)).
+		SetEmail(newPassword.Email).
+		SetHash(newPassword.Hash).
+		SetUsername(newPassword.Username).
+		SetUserID(newPassword.UserID).
+		Save(context.TODO())
+	if err != nil {
+		return rollback(tx, "update password uploading: %w", err)
+	}
+
+	if err = tx.Commit(); err != nil {
+		return rollback(tx, "update password commit: %w", err)
+	}
+
+	return nil
+}