Add GetUserByToken method to auth service

internal/service/auth/get_user_by_token.go

@@ -0,0 +1,28 @@
+package auth
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	"github.com/eduardolat/pgbackweb/internal/database/dbgen"
+)
+
+func (s *Service) GetUserByToken(
+	ctx context.Context, token string,
+) (bool, dbgen.AuthServiceGetUserByTokenRow, error) {
+	user, err := s.dbgen.AuthServiceGetUserByToken(
+		ctx, dbgen.AuthServiceGetUserByTokenParams{
+			Token:         token,
+			EncryptionKey: *s.env.PBW_ENCRYPTION_KEY,
+		},
+	)
+	if err != nil && errors.Is(err, sql.ErrNoRows) {
+		return false, user, nil
+	}
+	if err != nil {
+		return false, user, err
+	}
+
+	return true, user, nil
+}

internal/service/auth/get_user_by_token.sql

@@ -0,0 +1,7 @@
+-- name: AuthServiceGetUserByToken :one
+SELECT
+  users.*,
+  sessions.id as session_id
+FROM sessions
+JOIN users ON users.id = sessions.user_id
+WHERE pgp_sym_decrypt(sessions.token, @encryption_key) = @token;