Files
Felis/internal/pgint/store_test.go
T

232 lines
7.0 KiB
Go

//go:build pgint
package pgint
import (
"context"
"database/sql"
"errors"
"os"
"strings"
"testing"
"time"
"felis.lolicon.best/internal/api"
"felis.lolicon.best/internal/store"
"github.com/jackc/pgx/v5/pgconn"
)
// Every pooled connection starts with the server-side limits, so a runaway
// statement or an abandoned transaction cannot hold a connection forever.
func TestPoolSessionsCarryTheTimeouts(t *testing.T) {
ctx := context.Background()
for setting, want := range map[string]string{
"statement_timeout": "15s",
"idle_in_transaction_session_timeout": "1min",
} {
var got string
if err := db.QueryRowContext(ctx, "SHOW "+setting).Scan(&got); err != nil {
t.Fatal(err)
}
if got != want {
t.Errorf("%s = %q, want %q", setting, got, want)
}
}
}
// The limit is enforced by the server: a DSN that tightens it gets its
// statements cancelled at that bound.
func TestStatementTimeoutCancelsARunawayStatement(t *testing.T) {
ctx := context.Background()
dsn := os.Getenv("FELIS_TEST_PG_URL")
sep := "?"
if strings.Contains(dsn, "?") {
sep = "&"
}
drv, err := store.Open(ctx, dsn+sep+"statement_timeout=200")
if err != nil {
t.Fatal(err)
}
defer drv.Close()
_, err = drv.DB().ExecContext(ctx, "SELECT pg_sleep(2)")
var pgErr *pgconn.PgError
if !errors.As(err, &pgErr) || pgErr.Code != "57014" { // query_canceled
t.Fatalf("pg_sleep(2) under a 200ms limit: err = %v, want query_canceled", err)
}
}
// Unlock releases the lock on the connection that took it, even when the pool
// would hand that connection to someone else: another migrator can take it next.
func TestMigrationLockIsReleasedOnItsOwnConnection(t *testing.T) {
ctx := context.Background()
dsn := os.Getenv("FELIS_TEST_PG_URL")
drv, err := store.Open(ctx, dsn)
if err != nil {
t.Fatal(err)
}
defer drv.Close()
other, err := store.Open(ctx, dsn)
if err != nil {
t.Fatal(err)
}
defer other.Close()
if err := drv.Lock(ctx); err != nil {
t.Fatal(err)
}
// Hold the pool's idle connection, so a release that went through the pool
// would land on a different session from the lock's.
busy, err := drv.DB().Conn(ctx)
if err != nil {
t.Fatal(err)
}
defer busy.Close()
var held bool
if err := other.DB().QueryRowContext(ctx, "SELECT pg_try_advisory_lock($1)", store.AdvisoryLockKey).Scan(&held); err != nil {
t.Fatal(err)
}
if held {
t.Fatal("a second migrator took the lock while the first held it")
}
if err := drv.Unlock(ctx); err != nil {
t.Fatalf("Unlock: %v", err)
}
conn, err := other.DB().Conn(ctx)
if err != nil {
t.Fatal(err)
}
defer conn.Close()
if err := conn.QueryRowContext(ctx, "SELECT pg_try_advisory_lock($1)", store.AdvisoryLockKey).Scan(&held); err != nil {
t.Fatal(err)
}
if !held {
t.Fatal("the lock is still held after Unlock")
}
if _, err := conn.ExecContext(ctx, "SELECT pg_advisory_unlock($1)", store.AdvisoryLockKey); err != nil {
t.Fatal(err)
}
}
// A migration body runs without the request-sized statement limit.
func TestMigrationBodyHasNoStatementLimit(t *testing.T) {
ctx := context.Background()
drv, err := store.Open(ctx, os.Getenv("FELIS_TEST_PG_URL"))
if err != nil {
t.Fatal(err)
}
defer drv.Close()
t.Cleanup(func() {
_, _ = db.ExecContext(ctx, "DROP TABLE IF EXISTS timeout_probe")
_, _ = db.ExecContext(ctx, "DELETE FROM schema_migrations WHERE version = 999999")
})
probe := store.Migration{Version: 999999, Name: "timeout_probe",
SQL: "CREATE TABLE timeout_probe AS SELECT current_setting('statement_timeout') AS v"}
if err := drv.Apply(ctx, probe); err != nil {
t.Fatal(err)
}
var v string
if err := db.QueryRowContext(ctx, "SELECT v FROM timeout_probe").Scan(&v); err != nil {
t.Fatal(err)
}
if v != "0" {
t.Fatalf("statement_timeout inside a migration = %q, want 0", v)
}
}
// Two assertions verified against the same stored counter can land in either
// order; the lower one never pulls the counter back, and both stamp the use.
func TestSignCountNeverMovesBack(t *testing.T) {
ctx := context.Background()
u := newUser(t, "user", "signcount")
cid := "cid-" + suffix(t)
if _, err := db.ExecContext(ctx,
`INSERT INTO webauthn_credentials (id, user_id, credential_id, public_key, sign_count) VALUES ($1,$2,$3,'pk',4)`,
"cred-"+suffix(t), u.ID, cid); err != nil {
t.Fatal(err)
}
later := mustNow().Add(time.Minute).Truncate(time.Microsecond)
if err := repo.AdvanceCredentialSignCount(ctx, cid, 6, mustNow()); err != nil {
t.Fatal(err)
}
if err := repo.AdvanceCredentialSignCount(ctx, cid, 5, later); err != nil {
t.Fatal(err)
}
var n int64
var used time.Time
if err := db.QueryRowContext(ctx,
`SELECT sign_count, last_used_at FROM webauthn_credentials WHERE credential_id = $1`, cid).Scan(&n, &used); err != nil {
t.Fatal(err)
}
if n != 6 {
t.Errorf("sign_count = %d after 6 then 5, want 6", n)
}
if !used.Equal(later) {
t.Errorf("last_used_at = %v, want the later use %v", used, later)
}
}
// Disabling revokes the sessions in the same transaction: when the revocation
// fails, the flag is not left set, and the caller hears about it.
func TestSetUserDisabledIsAtomic(t *testing.T) {
ctx := context.Background()
u := newUser(t, "user", "disable")
hash := "h-" + suffix(t)
if err := repo.CreateSession(ctx, api.NewSession{TokenHash: hash, UserID: u.ID, ExpiresAt: mustNow().Add(time.Hour)}); err != nil {
t.Fatal(err)
}
// Make every session update fail, as a lost connection or a lock timeout would.
fn := "pgint_refuse_" + suffix(t)
for _, stmt := range []string{
`CREATE FUNCTION ` + fn + `() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN RAISE EXCEPTION 'refused'; END $$`,
`CREATE TRIGGER ` + fn + ` BEFORE UPDATE ON sessions FOR EACH ROW EXECUTE FUNCTION ` + fn + `()`,
} {
if _, err := db.ExecContext(ctx, stmt); err != nil {
t.Fatal(err)
}
}
dropped := false
drop := func() {
if dropped {
return
}
dropped = true
_, _ = db.ExecContext(ctx, `DROP TRIGGER `+fn+` ON sessions`)
_, _ = db.ExecContext(ctx, `DROP FUNCTION `+fn+`()`)
}
t.Cleanup(drop)
if err := repo.SetUserDisabled(ctx, u.ID, true); err == nil {
t.Fatal("SetUserDisabled succeeded although its sessions could not be revoked")
}
var disabled bool
if err := db.QueryRowContext(ctx, `SELECT disabled FROM users WHERE id = $1`, u.ID).Scan(&disabled); err != nil {
t.Fatal(err)
}
if disabled {
t.Fatal("the account was left disabled with its sessions still live")
}
drop()
if err := repo.SetUserDisabled(ctx, u.ID, true); err != nil {
t.Fatal(err)
}
if _, err := repo.SessionUser(ctx, hash, mustNow()); !errors.Is(err, api.ErrNotFound) {
t.Fatalf("session after disable = %v, want ErrNotFound", err)
}
var revoked sql.NullTime
if err := db.QueryRowContext(ctx, `SELECT revoked_at FROM sessions WHERE token_hash = $1`, hash).Scan(&revoked); err != nil {
t.Fatal(err)
}
if !revoked.Valid {
t.Fatal("disable left the session unrevoked")
}
if err := repo.SetUserDisabled(ctx, "no-such-"+suffix(t), true); !errors.Is(err, api.ErrNotFound) {
t.Fatalf("SetUserDisabled(missing) = %v, want ErrNotFound", err)
}
}