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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package tests
import (
"context"
"database/sql"
"fmt"
"net"
"net/http"
"testing"
"time"
"github.com/GoogleCloudPlatform/cloudsql-proxy/proxy/certs"
"github.com/GoogleCloudPlatform/cloudsql-proxy/proxy/proxy"
"github.com/jackc/pgx/v4"
"github.com/jackc/pgx/v4/stdlib"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"google.golang.org/api/option"
"google.golang.org/api/sqladmin/v1"
)
func TestClientHandlesSSLReset(t *testing.T) {
if testing.Short() {
t.Skip("skipping dialer integration tests")
}
newClient := func(c *http.Client) *proxy.Client {
return &proxy.Client{
Port: 3307,
Certs: certs.NewCertSourceOpts(c, certs.RemoteOpts{
UserAgent: "cloud_sql_proxy/test_build",
IPAddrTypeOpts: []string{"PUBLIC", "PRIVATE"},
}),
Conns: proxy.NewConnSet(),
}
}
connectToDB := func(c *proxy.Client) (*sql.DB, error) {
var (
dbUser = *postgresUser
dbPwd = *postgresPass
dbName = *postgresDb
)
dsn := fmt.Sprintf("user=%s password=%s database=%s", dbUser, dbPwd, dbName)
config, err := pgx.ParseConfig(dsn)
if err != nil {
return nil, err
}
config.DialFunc = func(ctx context.Context, network, instance string) (net.Conn, error) {
return c.DialContext(ctx, *postgresConnName)
}
dbURI := stdlib.RegisterConnConfig(config)
return sql.Open("pgx", dbURI)
}
resetSSL := func(c *http.Client) error {
svc, err := sqladmin.NewService(context.Background(), option.WithHTTPClient(c))
if err != nil {
return err
}
project, _, instance, _, _ := proxy.ParseInstanceConnectionName(*postgresConnName)
t.Log("Resetting SSL config.")
op, err := svc.Instances.ResetSslConfig(project, instance).Do()
if err != nil {
return err
}
for {
t.Log("Waiting for operation to complete.")
op, err = svc.Operations.Get(project, op.Name).Do()
if err != nil {
return err
}
if op.Status == "DONE" {
t.Log("reset SSL config operation complete")
break
}
time.Sleep(time.Second)
}
return nil
}
// SETUP: create HTTP client and proxy client, then connect to database
src, err := google.DefaultTokenSource(context.Background(), proxy.SQLScope)
if err != nil {
t.Fatal(err)
}
client := oauth2.NewClient(context.Background(), src)
proxyClient := newClient(client)
db, err := connectToDB(proxyClient)
if err != nil {
t.Fatalf("failed to connect to DB: %v", err)
}
// Begin database transaction
tx, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer tx.Rollback()
resetSSL(client)
// Re-dial twice, once to invalidate config, once to establish connection
var attempts int
for {
t.Log("Re-dialing instance")
_, err = proxyClient.DialContext(context.Background(), *postgresConnName)
if err != nil {
t.Logf("Dial error: %v", err)
}
if err == nil {
break
}
attempts++
if attempts > 1 {
t.Fatalf("could not dial: %v", err)
}
time.Sleep(time.Second)
}
for i := 0; i < 5; i++ {
row, err := tx.Query("SELECT 1")
if err != nil {
t.Logf("Query after Reset SSL failed as expected after %v retries (error was %v)", i, err)
break
}
row.Close()
time.Sleep(time.Second)
}
if err = db.Ping(); err != nil {
t.Fatalf("could not re-stablish a DB connection: %v", err)
}
}
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