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config.go
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config.go
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// Copyright 2017 George S. Kong. All rights reserved.
// Use of this source code is governed by a license that can be found in the LICENSE.txt file.
package main
import (
"os"
"path/filepath"
. "github.com/gkong/dm/gen"
"github.com/gkong/go-qweb/qsess"
"github.com/gkong/go-qweb/qsess/qsldb"
"github.com/BurntSushi/toml"
"github.com/syndtr/goleveldb/leveldb"
"github.com/throttled/throttled/v2"
"github.com/throttled/throttled/v2/store/memstore"
)
// toml file schema
var Config tomlConfig
type tomlConfig struct {
// secrets
AdminUser string
AdminEmailAddr string
MetricsUser string
MetricsPassword string
EmailSender string
EmailUserName string
EmailPassword string
QsessKeys []string // a separate key for each qsess store would allow independent key rotation intervals...
// differ between debug / test / production
DebugPanicStack bool
DebugEmail bool
LogAllHTTP bool
ClientVersion string
TCPAddr string
ReverseProxy bool
SSL bool
SSLTCPAddr string
SSLCertDir string
SSLHosts []string
BaseURL string
CSRFCookieSecure bool
StaticDir string
DocDir string
DbDir string
BckDir string
BckLatestDir string
LogDest string
// more or less fixed
ClientVersionReqHdr string
ClientUpdateReqHdr string
EmailServer string
EmailPort string
DailyBackupTime int
AlertEmailIntervalSecs int
AlertEmailMsgError string
AlertEmailMsgPanic string
VerifLimitPerMin int
VerifLimitBurst int
LoginLimitPerMin int
LoginLimitBurst int
ContactLimitPerDay int
ContactLimitBurst int
NotFoundLimitPerMin int
NotFoundLimitBurst int
NonsslLimitPerMin int
NonsslLimitBurst int
BcryptCost int
DocTTL int
DocQueriesTTL int
DefaultBibleVersion string
DefaultBibleProvider string
SysProc string
LumberjackMaxSize int
LumberjackMaxBackups int
LumberjackMaxAge int
CSRFCookieName string
CSRFHeader string
CSRFRandLen int
CSRFMaxAgeSecs int
CSRFMinRefreshSecs int
QsLogin ConfigQsess
QsVerify ConfigQsess
QsEmail ConfigQsess
QsRecovery ConfigQsess
}
type ConfigQsess struct {
AuthType string
MaxAgeSecs int
MinRefreshSecs int
LongMaxAgeSecs int
LongMinRefreshSecs int
CookieName string
CookieSecure bool
CookieHTTPOnly bool
CookieSameSite string
}
func doConfig(args []string) {
if len(args) == 0 {
panic("doConfig - must give at least one command-line arg")
}
var dir string
var arg int
fi, err := os.Stat(args[0])
if err != nil {
panic("doConfig - cannot Stat first command-line arg - " + err.Error())
}
if fi.Mode().IsDir() {
dir = args[0]
arg = 1
if len(args) < 2 {
panic("doConfig - need at least one config file")
}
}
for ; arg < len(args); arg++ {
fname := args[arg]
if (dir != "") && (args[arg][0] != '/') {
fname = filepath.Join(dir, args[arg])
}
// multiple sparse files decoded into one struct
if _, err := toml.DecodeFile(fname, &Config); err != nil {
panic("doConfig - toml.Decode failed - " + err.Error())
}
}
}
// rate limit PER IP+port for things with emailed verifications - signup and pwrecover
var verifLimiter *throttled.GCRARateLimiterCtx
// rate limit PER IP+port for login attempts
var loginLimiter *throttled.GCRARateLimiterCtx
// rate limit PER USER for contact form submission
var contactLimiter *throttled.GCRARateLimiterCtx
// rate limit PER IP+PORT for URL not found (to discourage excessive crawling)
var notfoundLimiter *throttled.GCRARateLimiterCtx
func throttledSetup() {
store, err := memstore.New(0)
if err != nil {
logPanic("throttledSetup - memstore.New", err, nil)
}
quota := throttled.RateQuota{throttled.PerMin(Config.VerifLimitPerMin), Config.VerifLimitBurst}
verifLimiter, err = throttled.NewGCRARateLimiter(store, quota)
if err != nil {
logPanic("throttledSetup - verif NewGCRARateLimiter", err, nil)
}
quota = throttled.RateQuota{throttled.PerMin(Config.LoginLimitPerMin), Config.LoginLimitBurst}
loginLimiter, err = throttled.NewGCRARateLimiter(store, quota)
if err != nil {
logPanic("throttledSetup - login NewGCRARateLimiter", err, nil)
}
quota = throttled.RateQuota{throttled.PerDay(Config.ContactLimitPerDay), Config.ContactLimitBurst}
contactLimiter, err = throttled.NewGCRARateLimiter(store, quota)
if err != nil {
logPanic("throttledSetup - contact NewGCRARateLimiter", err, nil)
}
quota = throttled.RateQuota{throttled.PerMin(Config.NotFoundLimitPerMin), Config.NotFoundLimitBurst}
notfoundLimiter, err = throttled.NewGCRARateLimiter(store, quota)
if err != nil {
logPanic("throttledSetup - notfound NewGCRARateLimiter", err, nil)
}
}
// database setup
var gldb *leveldb.DB
func gldbSetup() {
var err error
if gldb != nil {
return
}
if gldb, err = leveldb.OpenFile(Config.DbDir, nil); err != nil {
logPanic("gldbSetup - leveldb.OpenFile failed", err, nil)
}
}
// session stores
var qsLogin *qsess.Store // login sessions
var qsVerify *qsess.Store // sign-up email verifications
var qsEmail *qsess.Store // email change verifications
var qsRecovery *qsess.Store // password recovery verifications
// fill in a qsess.Store struct with data we've obtained from a TOML file
func doQsess(store *qsess.Store, config ConfigQsess) {
var err error
store.AuthType, err = qsess.ParseAuthType(config.AuthType)
if err != nil {
logPanic("doQsess - unrecognized value for qsess.Store.AuthType in config file", err, nil)
}
store.MaxAgeSecs = config.MaxAgeSecs
store.MinRefreshSecs = config.MinRefreshSecs
if config.AuthType == "cookie" {
store.CookieName = config.CookieName
store.CookieSecure = config.CookieSecure
store.CookieHTTPOnly = config.CookieHTTPOnly
store.CookieSameSite = strToSameSite(config.CookieSameSite)
}
}
// setup session stores for login, sign-up email verification, email change, and password recovery
func sessSetup() {
var err error
// store for login sessions
qsLogin, err = qsldb.NewGldbStore(gldb, PfxSessLogin, logErrWriter, stringsToByteSlices(Config.QsessKeys)...)
if err != nil {
logPanic("sessSetup - failed to create login store", err, nil)
}
if Config.QsLogin.AuthType != "cookie" {
logPanic("sessSetup - qsLogin AuthType must be cookie", nil, nil)
}
doQsess(qsLogin, Config.QsLogin)
qsLogin.NewSessData = nil
qsLogin.SessionSaved = dbRecordVisit
// store for sign-up email verifications
qsVerify, err = qsldb.NewGldbStore(gldb, PfxSessVerify, logErrWriter, stringsToByteSlices(Config.QsessKeys)...)
if err != nil {
logPanic("sessSetup - failed to create verify store", err, nil)
}
if Config.QsVerify.AuthType != "token" {
logPanic("sessSetup - qsVerify AuthType must be token", nil, nil)
}
doQsess(qsVerify, Config.QsVerify)
qsVerify.NewSessData = NewVerifySessData
// store for email change verifications
qsEmail, err = qsldb.NewGldbStore(gldb, PfxSessEmail, logErrWriter, stringsToByteSlices(Config.QsessKeys)...)
if err != nil {
logPanic("sessSetup - failed to create email store", err, nil)
}
if Config.QsEmail.AuthType != "token" {
logPanic("sessSetup - qsEmail AuthType must be token", nil, nil)
}
doQsess(qsEmail, Config.QsEmail)
qsEmail.NewSessData = NewEmailSessData
// store for password recovery verifications
qsRecovery, err = qsldb.NewGldbStore(gldb, PfxSessRecovery, logErrWriter, stringsToByteSlices(Config.QsessKeys)...)
if err != nil {
logPanic("sessSetup - failed to create recovery store", err, nil)
}
if Config.QsRecovery.AuthType != "token" {
logPanic("sessSetup - qsRecovery AuthType must be token", nil, nil)
}
doQsess(qsRecovery, Config.QsRecovery)
qsRecovery.NewSessData = nil
}