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/
main.go
736 lines (636 loc) · 23 KB
/
main.go
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// Copyright 2020 the Exposure Notifications Verification Server authors
//
// 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 main provides a utility that bootstraps the initial database with
// users and realms.
//
//nolint:gosec // We don't need crypto/rand here
package main
import (
"context"
"encoding/hex"
"flag"
"fmt"
"math/rand"
"os/signal"
"runtime"
"strconv"
"strings"
"sync"
"sync/atomic"
"syscall"
"time"
firebase "firebase.google.com/go"
firebaseauth "firebase.google.com/go/auth"
"github.com/google/exposure-notifications-verification-server/internal/project"
"github.com/google/exposure-notifications-verification-server/pkg/api"
"github.com/google/exposure-notifications-verification-server/pkg/config"
"github.com/google/exposure-notifications-verification-server/pkg/controller/rotation"
"github.com/google/exposure-notifications-verification-server/pkg/database"
"github.com/google/exposure-notifications-verification-server/pkg/pagination"
"github.com/google/exposure-notifications-verification-server/pkg/rbac"
"github.com/google/exposure-notifications-verification-server/pkg/render"
"github.com/jinzhu/gorm"
"golang.org/x/sync/semaphore"
"github.com/google/exposure-notifications-server/pkg/keys"
"github.com/google/exposure-notifications-server/pkg/logging"
"github.com/google/exposure-notifications-server/pkg/secrets"
"github.com/google/exposure-notifications-server/pkg/timeutils"
"github.com/sethvargo/go-envconfig"
)
var flagStats = flag.Bool("stats", false, "generate codes and statistics")
func main() {
flag.Parse()
ctx, done := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
logger := logging.NewLoggerFromEnv().Named("seed")
ctx = logging.WithLogger(ctx, logger)
err := realMain(ctx)
done()
if err != nil {
logger.Fatal(err)
}
}
func realMain(ctx context.Context) error {
logger := logging.FromContext(ctx).Named("seed")
// Database
var dbConfig database.Config
if err := config.ProcessWith(ctx, &dbConfig, envconfig.OsLookuper()); err != nil {
return fmt.Errorf("failed to process config: %w", err)
}
db, err := dbConfig.Load(ctx)
if err != nil {
return fmt.Errorf("failed to load database config: %w", err)
}
if err := db.Open(ctx); err != nil {
return fmt.Errorf("failed to connect to database: %w", err)
}
defer db.Close()
// Firebase
var fbConfig config.FirebaseConfig
if err := config.ProcessWith(ctx, &fbConfig, envconfig.OsLookuper()); err != nil {
return fmt.Errorf("failed to parse firebase config: %w", err)
}
fb, err := firebase.NewApp(ctx, &firebase.Config{
DatabaseURL: fbConfig.DatabaseURL,
ProjectID: fbConfig.ProjectID,
StorageBucket: fbConfig.StorageBucket,
})
if err != nil {
return fmt.Errorf("failed to setup firebase: %w", err)
}
firebaseAuth, err := fb.Auth(ctx)
if err != nil {
return fmt.Errorf("failed to configure firebase: %w", err)
}
// System token signing key
var tokenConfig config.TokenSigningConfig
if err := config.ProcessWith(ctx, &tokenConfig, envconfig.OsLookuper()); err != nil {
return fmt.Errorf("failed to process token signing config: %w", err)
}
keyManager, err := keys.KeyManagerFor(ctx, &tokenConfig.Keys)
if err != nil {
return fmt.Errorf("failed to create token key manager: %w", err)
}
keyManagerTyp, ok := keyManager.(keys.SigningKeyManager)
if !ok {
return fmt.Errorf("token signing key manager is not SigningKeyManager (got %T)", keyManager)
}
// Get secret manager.
var secretsConfig secrets.Config
if err := config.ProcessWith(ctx, &secretsConfig, envconfig.OsLookuper()); err != nil {
return fmt.Errorf("failed to process secrets config: %w", err)
}
secretManager, err := secrets.SecretManagerFor(ctx, &secretsConfig)
if err != nil {
return fmt.Errorf("failed to create secret manager: %w", err)
}
secretManagerTyp, ok := secretManager.(secrets.SecretVersionManager)
if !ok {
return fmt.Errorf("secret manager is not a secret version manager (is %T)", secretManager)
}
// Create a realm
var realm1 *database.Realm
realm1, err = db.FindRealmByName("Narnia")
if err != nil {
if database.IsNotFound(err) {
realm1 = database.NewRealmWithDefaults("Narnia")
realm1.RegionCode = "US-PA"
realm1.AbusePreventionEnabled = true
realm1.AllowGeneratedSMS = true
realm1.AddUserReportToAllowedTestTypes() // Enable user reporting on Narnia
if err := db.SaveRealm(realm1, database.System); err != nil {
return fmt.Errorf("failed to create realm: %w: %v", err, realm1.ErrorMessages())
}
logger.Infow("created realm", "realm", realm1)
} else {
return fmt.Errorf("failed to find realm: %w: %v", err, realm1.ErrorMessages())
}
}
// Create another realm
var realm2 *database.Realm
realm2, err = db.FindRealmByName("Wonderland")
if err != nil {
if database.IsNotFound(err) {
realm2 = database.NewRealmWithDefaults("Wonderland")
realm2.AllowedTestTypes = database.TestTypeLikely | database.TestTypeConfirmed
realm2.RegionCode = "US-WA"
realm2.AbusePreventionEnabled = true
realm1.AllowGeneratedSMS = true
if err := db.SaveRealm(realm2, database.System); err != nil {
return fmt.Errorf("failed to create realm: %w: %v", err, realm2.ErrorMessages())
}
logger.Infow("created realm", "realm", realm2)
} else {
return fmt.Errorf("failed to find realm: %w: %v", err, realm1.ErrorMessages())
}
}
// Create secrets - note we do this AFTER realm creation so it creates the
// realm verification keys too.
if err := createSecrets(ctx, db, keyManagerTyp, secretManagerTyp); err != nil {
return fmt.Errorf("failed to create secrets: %w", err)
}
// Create some system sms from numbers
if err := db.CreateOrUpdateSMSFromNumbers([]*database.SMSFromNumber{
{
Label: "USA",
Value: "+15005550006",
},
{
Label: "Mexico",
Value: "55-1234-5678",
},
}); err != nil {
return fmt.Errorf("failed to create sms from numbers: %w", err)
}
logger.Infow("created sms from numbers")
// Create users
user := &database.User{Email: "user@example.com", Name: "Demo User"}
if _, err := db.FindUserByEmail(user.Email); database.IsNotFound(err) {
if err := db.SaveUser(user, database.System); err != nil {
return fmt.Errorf("failed to create user: %w: %v", err, user.ErrorMessages())
}
logger.Infow("created user", "user", user)
}
if err := user.AddToRealm(db, realm1, rbac.LegacyRealmUser, database.System); err != nil {
return fmt.Errorf("failed to add user to realm 1: %w", err)
}
if err := user.AddToRealm(db, realm2, rbac.LegacyRealmUser, database.System); err != nil {
return fmt.Errorf("failed to add user to realm 2: %w", err)
}
if err := createFirebaseUser(ctx, firebaseAuth, user); err != nil {
return err
}
unverified := &database.User{Email: "unverified@example.com", Name: "Unverified User"}
if _, err := db.FindUserByEmail(unverified.Email); database.IsNotFound(err) {
if err := db.SaveUser(unverified, database.System); err != nil {
return fmt.Errorf("failed to create unverified: %w: %v", err, unverified.ErrorMessages())
}
logger.Infow("created user", "user", unverified)
}
if err := unverified.AddToRealm(db, realm1, rbac.LegacyRealmUser, database.System); err != nil {
return fmt.Errorf("failed to add user to realm 1: %w", err)
}
if err := createFirebaseUser(ctx, firebaseAuth, unverified); err != nil {
return err
}
admin := &database.User{Email: "admin@example.com", Name: "Admin User"}
if _, err := db.FindUserByEmail(admin.Email); database.IsNotFound(err) {
if err := db.SaveUser(admin, database.System); err != nil {
return fmt.Errorf("failed to create admin: %w: %v", err, admin.ErrorMessages())
}
logger.Infow("created admin", "admin", admin)
}
if err := admin.AddToRealm(db, realm1, rbac.LegacyRealmAdmin, database.System); err != nil {
return fmt.Errorf("failed to add user to realm 1: %w", err)
}
if err := createFirebaseUser(ctx, firebaseAuth, admin); err != nil {
return err
}
super := &database.User{Email: "super@example.com", Name: "Super User", SystemAdmin: true}
if _, err := db.FindUserByEmail(super.Email); database.IsNotFound(err) {
if err := db.SaveUser(super, database.System); err != nil {
return fmt.Errorf("failed to create super: %w: %v", err, super.ErrorMessages())
}
logger.Infow("created super", "super", super)
}
if err := createFirebaseUser(ctx, firebaseAuth, super); err != nil {
return err
}
realms := []*database.Realm{realm1, realm2}
for _, realm := range realms {
// Create device API keys
for _, name := range []string{"Corona Capture", "Tracing Tracker"} {
deviceAPIKey, err := realm.CreateAuthorizedApp(db, &database.AuthorizedApp{
Name: name,
APIKeyType: database.APIKeyTypeDevice,
}, admin)
if err != nil {
return fmt.Errorf("failed to create device api key: %w", err)
}
logger.Infow("created device api key", "key", deviceAPIKey)
}
}
for _, realm := range realms {
// Create some Apps
apps := []*database.MobileApp{
{
Name: "Example iOS app",
RealmID: realm.ID,
URL: "http://google.com/",
OS: database.OSTypeIOS,
AppID: "ios.example.app",
},
{
Name: "Example Android app",
RealmID: realm.ID,
URL: "http://google.com",
OS: database.OSTypeAndroid,
AppID: "android.example.app",
SHA: "AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA:AA",
},
}
for i := range apps {
app := apps[i]
if err := db.SaveMobileApp(app, database.System); err != nil {
return fmt.Errorf("failed to create app: %w", err)
}
}
}
for _, realm := range realms {
// Create an admin API key
for _, name := range []string{"Closet Cloud", "Internal Health System"} {
adminAPIKey, err := realm.CreateAuthorizedApp(db, &database.AuthorizedApp{
Name: name,
APIKeyType: database.APIKeyTypeAdmin,
}, admin)
if err != nil {
return fmt.Errorf("failed to create admin api key: %w", err)
}
logger.Infow("created admin api key", "key", adminAPIKey)
}
}
if *flagStats {
// Temporarily disable gorm logging, it's very chatty and increases the seed
// time significantly.
db.RawDB().LogMode(false)
defer db.RawDB().LogMode(true)
realms := []*database.Realm{realm1, realm2}
for _, realm := range realms {
maxPerDay, err := generateCodesAndStats(ctx, db, realm)
if err != nil {
return fmt.Errorf("failed to generate stats: %w", err)
}
if err := generateKeyServerStats(ctx, db, realm, maxPerDay); err != nil {
return fmt.Errorf("failed to generate key-server stats: %w", err)
}
if err := generateSMSErrorStats(ctx, db, realm); err != nil {
return fmt.Errorf("failed to generate sms-error stats: %w", err)
}
}
}
return nil
}
type phoneNumberGenerator struct {
lastNumber uint64
mu sync.Mutex
}
func newPhoneNumberGenerator() *phoneNumberGenerator {
return &phoneNumberGenerator{
lastNumber: uint64(10000000000),
}
}
func (png *phoneNumberGenerator) next() uint64 {
png.mu.Lock()
defer png.mu.Unlock()
png.lastNumber++
return png.lastNumber
}
// generateCodesAndStats exercises the system for the past N days with random
// values to simulate data that might appear in the real world. This is
// primarily used to test statistics and graphs.
func generateCodesAndStats(ctx context.Context, db *database.Database, realm *database.Realm) (map[string]int, error) {
now := time.Now().UTC()
users, _, err := db.ListUsers(pagination.UnlimitedResults)
if err != nil {
return nil, fmt.Errorf("failed to list users: %w", err)
}
randomUser := func() *database.User {
return users[rand.Intn(len(users))]
}
adminAuthorizedApps, _, err := realm.ListAuthorizedApps(db, pagination.UnlimitedResults,
database.WithAuthorizedAppType(database.APIKeyTypeAdmin))
if err != nil {
return nil, fmt.Errorf("failed to list admin authorized apps: %w", err)
}
randomAdminAuthorizedApp := func() *database.AuthorizedApp {
return adminAuthorizedApps[rand.Intn(len(adminAuthorizedApps))]
}
deviceAuthorizedApps, _, err := realm.ListAuthorizedApps(db, pagination.UnlimitedResults,
database.WithAuthorizedAppType(database.APIKeyTypeDevice))
if err != nil {
return nil, fmt.Errorf("failed to list device authorized apps: %w", err)
}
randomDeviceAuthorizedApp := func() *database.AuthorizedApp {
return deviceAuthorizedApps[rand.Intn(len(deviceAuthorizedApps))]
}
externalIDs := make([]string, 4)
for i := range externalIDs {
b := make([]byte, 8)
if _, err := rand.Read(b); err != nil {
return nil, fmt.Errorf("failed to read rand: %w", err)
}
externalIDs[i] = hex.EncodeToString(b)
}
randomExternalID := func() string {
return externalIDs[rand.Intn(len(externalIDs))]
}
phoneNumberGen := newPhoneNumberGenerator()
nonce := make([]byte, database.NonceLength)
allowsUserReport := realm.AllowsUserReport()
tokensClaimedPerDay := make(map[string]int)
for day := 1; day <= project.StatsDisplayDays; day++ {
max := rand.Intn(50) + rand.Intn(10)
date := now.Add(time.Duration(day) * -24 * time.Hour)
totalClaimed := int64(0)
workers := int64(runtime.NumCPU())
if workers < 3 {
workers = 3
}
sem := semaphore.NewWeighted(workers)
for i := 0; i < max; i++ {
// create local version for use for this sequence.
date := date
if err := sem.Acquire(ctx, 1); err != nil {
return nil, fmt.Errorf("failed to acquire semaphore: %w", err)
}
go func() {
defer sem.Release(1)
issuingUserID := uint(0)
issuingAppID := uint(0)
issuingExternalID := ""
isUserReport := false
// Random determine if this was issued by an app.
if percentChance(50) {
issuingAppID = randomAdminAuthorizedApp().ID
// Random determine if the code had an external audit.
if rand.Intn(2) == 0 {
b := make([]byte, 8)
if _, err := rand.Read(b); err != nil {
panic(fmt.Errorf("failed to read rand: %w", err))
}
issuingExternalID = randomExternalID()
}
} else if allowsUserReport && percentChance(30) {
// Random chance that this is a user report.
isUserReport = true
} else {
issuingUserID = randomUser().ID
}
code := fmt.Sprintf("%08d", rand.Intn(99999999))
longCode := fmt.Sprintf("%015d", rand.Intn(999999999999999))
testDate := now.Add(-48 * time.Hour)
testType := "confirmed"
verificationCode := &database.VerificationCode{
Model: gorm.Model{
CreatedAt: date,
},
RealmID: realm.ID,
Code: code,
ExpiresAt: now.Add(15 * time.Minute),
LongCode: longCode,
LongExpiresAt: now.Add(15 * 24 * time.Hour),
TestType: testType,
SymptomDate: &testDate,
TestDate: &testDate,
IssuingUserID: issuingUserID,
IssuingAppID: issuingAppID,
IssuingExternalID: issuingExternalID,
}
if isUserReport {
phoneNumber := phoneNumberGen.next()
verificationCode.PhoneNumber = fmt.Sprintf("+%d", phoneNumber)
verificationCode.Nonce = nonce
verificationCode.NonceRequired = true
verificationCode.TestType = api.TestTypeUserReport
testType = api.TestTypeUserReport
}
// If a verification code already exists, it will fail to save, and we retry.
if err := realm.SaveVerificationCode(db, verificationCode); err != nil {
panic(fmt.Errorf("failed to create verification code: %w", err))
}
db.UpdateStats(ctx, verificationCode)
// Determine if a code is claimed.
if percentChance(90) {
accept := map[string]struct{}{
api.TestTypeConfirmed: {},
api.TestTypeLikely: {},
api.TestTypeNegative: {},
api.TestTypeUserReport: {},
}
// Some percentage of codes will fail to claim - force this by changing
// the allowed test types to exclude "confirmed".
if percentChance(30) {
delete(accept, api.TestTypeConfirmed)
}
app := randomDeviceAuthorizedApp()
// randomize issue to claim time
if percentChance(25) {
date = date.Add(time.Duration(rand.Intn(12))*time.Hour + time.Second)
} else {
date = date.Add(time.Duration(rand.Intn(60))*time.Minute + time.Second)
}
os := database.OSTypeUnknown
if percentChance(99) {
if percentChance(50) {
os = database.OSTypeAndroid
} else {
os = database.OSTypeIOS
}
}
request := &database.IssueTokenRequest{
Time: date,
AuthApp: app,
VerCode: longCode,
AcceptTypes: accept,
ExpireAfter: 24 * time.Hour,
OS: os,
}
// 75% of the time, send the correct nonce. 25% of the time, don't (Will cause a failure).
if isUserReport && percentChance(75) {
request.Nonce = nonce
}
token, err := db.VerifyCodeAndIssueToken(request)
if err != nil {
return
}
// Determine if token is exchanged.
if percentChance(75) {
testType := testType
// Determine if token claim should fail. Override the testType to
// force the subject to mismatch.
if percentChance(20) {
testType = "likely"
}
if err := db.ClaimToken(date, app, token.TokenID, &database.Subject{
TestType: testType,
SymptomDate: &testDate,
TestDate: &testDate,
}); err != nil {
return
}
atomic.AddInt64(&totalClaimed, 1)
}
}
}()
}
if err := sem.Acquire(ctx, workers); err != nil {
return nil, fmt.Errorf("failed to wait for semaphore: %w", err)
}
tokensClaimedPerDay[date.Format("2006-01-02")] = int(totalClaimed)
}
return tokensClaimedPerDay, nil
}
func generateSMSErrorStats(ctx context.Context, db *database.Database, realm *database.Realm) error {
midnight := timeutils.UTCMidnight(time.Now())
stats := make([]string, 0, project.StatsDisplayDays*4)
for day := 0; day < project.StatsDisplayDays; day++ {
date := midnight.Add(time.Duration(day) * -24 * time.Hour)
for _, errorCode := range []string{"E30006", "E30007", "MS0005", "Q10489"} {
line := fmt.Sprintf(`('%s'::TIMESTAMPTZ, %d, '%s', %d)`,
date.Format(time.RFC3339), realm.ID, errorCode, rand.Int63n(25))
stats = append(stats, line)
}
}
sql := `INSERT INTO sms_error_stats (date, realm_id, error_code, quantity) VALUES ` + strings.Join(stats, ",\n")
if err := db.RawDB().Exec(sql).Error; err != nil {
return fmt.Errorf("failed to create stats: %w", err)
}
return nil
}
// generateKeyServerStats generates stats normally gathered from a key-server.
// This is primarily used to test statistics and graphs.
func generateKeyServerStats(ctx context.Context, db *database.Database, realm *database.Realm, maxPerDay map[string]int) error {
if err := db.SaveKeyServerStats(&database.KeyServerStats{RealmID: realm.ID}); err != nil {
return fmt.Errorf("failed create stats config: %w", err)
}
midnight := timeutils.UTCMidnight(time.Now())
stats := make([]string, 0, project.StatsDisplayDays)
for day := 0; day < project.StatsDisplayDays; day++ {
date := midnight.Add(time.Duration(day) * -24 * time.Hour)
max := 20 // lower default, otherwise generate realistic numbers.
if v, ok := maxPerDay[date.Format("2006-01-02")]; ok {
max = v
}
teksPublished := int64(max * 14)
if teksPublished > 0 {
teksPublished = rand.Int63n(teksPublished)
}
revisions := int64(max / 10)
if revisions > 0 {
revisions = rand.Int63n(revisions)
}
var missingOnset int64
if limit := max / 4; limit > 0 {
missingOnset = rand.Int63n(int64(limit))
}
publishRequests := randArr63n(int64(max), 3)
tekAgeDist := randArr63n(int64(max), 16)
onsetDist := randArr63n(15, 31)
line := fmt.Sprintf(`(%d, '%s'::TIMESTAMPTZ, %s::BIGINT[], %d, %d, %s::BIGINT[], %s::BIGINT[], %d)`,
realm.ID, date.Format(time.RFC3339), int64SliceToPostgres(publishRequests), teksPublished, revisions, int64SliceToPostgres(tekAgeDist), int64SliceToPostgres(onsetDist), missingOnset)
stats = append(stats, line)
}
sql := `INSERT INTO key_server_stats_days (realm_id, day, publish_requests, total_teks_published, revision_requests, tek_age_distribution, onset_to_upload_distribution, request_missing_onset_date) VALUES ` + strings.Join(stats, ",\n")
if err := db.RawDB().Exec(sql).Error; err != nil {
return fmt.Errorf("failed to create stats: %w", err)
}
return nil
}
func int64SliceToPostgres(in []int64) string {
var b strings.Builder
b.WriteString("array[")
for i, v := range in {
if i != 0 {
b.WriteString(",")
}
b.WriteString(strconv.FormatInt(v, 10))
}
b.WriteString("]")
return b.String()
}
func randArr63n(n, length int64) []int64 {
arr := make([]int64, length)
for i := int64(0); i < length; i++ {
if n > 0 {
arr[i] = rand.Int63n(n)
}
}
return arr
}
func percentChance(d int) bool {
return rand.Intn(100) <= d
}
func createFirebaseUser(ctx context.Context, firebaseAuth *firebaseauth.Client, user *database.User) error {
existing, err := firebaseAuth.GetUserByEmail(ctx, user.Email)
if err != nil && !firebaseauth.IsUserNotFound(err) {
return fmt.Errorf("failed to get user by email %v: %w", user.Email, err)
}
// User exists, verify email
if existing != nil {
// Already verified
if existing.EmailVerified {
return nil
}
update := (&firebaseauth.UserToUpdate{}).
EmailVerified(true)
if _, err := firebaseAuth.UpdateUser(ctx, existing.UID, update); err != nil {
return fmt.Errorf("failed to update user %v: %w", user.Email, err)
}
return nil
}
// User does not exist
create := (&firebaseauth.UserToCreate{}).
Email(user.Email).
DisplayName(user.Name).
Password("password")
if user.Email != "unverified@example.com" {
create = create.EmailVerified(true)
}
if _, err := firebaseAuth.CreateUser(ctx, create); err != nil {
return fmt.Errorf("failed to create user %v: %w", user.Email, err)
}
return nil
}
// createSecrets creates secrets. It re-uses the rotation worker logic and
// invokes the handler.
func createSecrets(ctx context.Context, db *database.Database, keyManager keys.SigningKeyManager, secretManager secrets.SecretVersionManager) error {
cfg, err := config.NewRotationConfig(ctx)
if err != nil {
return fmt.Errorf("failed to create rotation config: %w", err)
}
h, err := render.New(ctx, nil, cfg.DevMode)
if err != nil {
return fmt.Errorf("failed to create renderer: %w", err)
}
rotationController := rotation.New(cfg, db, keyManager, secretManager, h)
if err := rotationController.RotateSecrets(ctx); err != nil {
return fmt.Errorf("failed to create initial secrets: %w", err)
}
if err := rotationController.RotateTokenSigningKey(ctx); err != nil {
return fmt.Errorf("failed to create initial token signing key: %w", err)
}
if err := rotationController.RotateVerificationKeys(ctx); err != nil {
return fmt.Errorf("failed to create initial verification keys: %w", err)
}
return nil
}