553 lines
20 KiB
Go
553 lines
20 KiB
Go
package cmd
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import (
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"context"
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"fmt"
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"log"
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"net/url"
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"os"
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"os/signal"
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"path"
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"strings"
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"syscall"
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"time"
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bolt "github.com/coreos/bbolt"
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"github.com/pkg/errors"
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"github.com/go-pkgz/auth"
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"github.com/go-pkgz/auth/avatar"
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"github.com/go-pkgz/auth/provider"
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"github.com/go-pkgz/auth/token"
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"github.com/go-pkgz/mongo"
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"github.com/go-pkgz/rest/cache"
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"github.com/umputun/remark/backend/app/migrator"
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"github.com/umputun/remark/backend/app/notify"
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"github.com/umputun/remark/backend/app/rest/api"
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"github.com/umputun/remark/backend/app/rest/proxy"
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"github.com/umputun/remark/backend/app/store"
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"github.com/umputun/remark/backend/app/store/admin"
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"github.com/umputun/remark/backend/app/store/engine"
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"github.com/umputun/remark/backend/app/store/service"
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)
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// ServerCommand with command line flags and env
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type ServerCommand struct {
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Store StoreGroup `group:"store" namespace:"store" env-namespace:"STORE"`
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Avatar AvatarGroup `group:"avatar" namespace:"avatar" env-namespace:"AVATAR"`
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Cache CacheGroup `group:"cache" namespace:"cache" env-namespace:"CACHE"`
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Mongo MongoGroup `group:"mongo" namespace:"mongo" env-namespace:"MONGO"`
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Admin AdminGroup `group:"admin" namespace:"admin" env-namespace:"ADMIN"`
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Notify NotifyGroup `group:"notify" namespace:"notify" env-namespace:"NOTIFY"`
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SSL SSLGroup `group:"ssl" namespace:"ssl" env-namespace:"SSL"`
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Sites []string `long:"site" env:"SITE" default:"remark" description:"site names" env-delim:","`
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DevPasswd string `long:"dev-passwd" env:"DEV_PASSWD" default:"" description:"development mode password"`
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BackupLocation string `long:"backup" env:"BACKUP_PATH" default:"./var/backup" description:"backups location"`
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MaxBackupFiles int `long:"max-back" env:"MAX_BACKUP_FILES" default:"10" description:"max backups to keep"`
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ImageProxy bool `long:"img-proxy" env:"IMG_PROXY" description:"enable image proxy"`
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MaxCommentSize int `long:"max-comment" env:"MAX_COMMENT_SIZE" default:"2048" description:"max comment size"`
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MaxVotes int `long:"max-votes" env:"MAX_VOTES" default:"-1" description:"maximum number of votes per comment"`
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LowScore int `long:"low-score" env:"LOW_SCORE" default:"-5" description:"low score threshold"`
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CriticalScore int `long:"critical-score" env:"CRITICAL_SCORE" default:"-10" description:"critical score threshold"`
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ReadOnlyAge int `long:"read-age" env:"READONLY_AGE" default:"0" description:"read-only age of comments, days"`
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EditDuration time.Duration `long:"edit-time" env:"EDIT_TIME" default:"5m" description:"edit window"`
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Port int `long:"port" env:"REMARK_PORT" default:"8080" description:"port"`
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WebRoot string `long:"web-root" env:"REMARK_WEB_ROOT" default:"./web" description:"web root directory"`
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Auth struct {
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TTL struct {
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JWT time.Duration `long:"jwt" env:"JWT" default:"5m" description:"jwt TTL"`
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Cookie time.Duration `long:"cookie" env:"COOKIE" default:"200h" description:"auth cookie TTL"`
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} `group:"ttl" namespace:"ttl" env-namespace:"TTL"`
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Google AuthGroup `group:"google" namespace:"google" env-namespace:"GOOGLE" description:"Google OAuth"`
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Github AuthGroup `group:"github" namespace:"github" env-namespace:"GITHUB" description:"Github OAuth"`
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Facebook AuthGroup `group:"facebook" namespace:"facebook" env-namespace:"FACEBOOK" description:"Facebook OAuth"`
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Yandex AuthGroup `group:"yandex" namespace:"yandex" env-namespace:"YANDEX" description:"Yandex OAuth"`
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Dev bool `long:"dev" env:"DEV" description:"enable dev (local) oauth2"`
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} `group:"auth" namespace:"auth" env-namespace:"AUTH"`
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CommonOpts
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}
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// AuthGroup defines options group for auth params
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type AuthGroup struct {
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CID string `long:"cid" env:"CID" description:"OAuth client ID"`
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CSEC string `long:"csec" env:"CSEC" description:"OAuth client secret"`
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}
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// StoreGroup defines options group for store params
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type StoreGroup struct {
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Type string `long:"type" env:"TYPE" description:"type of storage" choice:"bolt" choice:"mongo" default:"bolt"`
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Bolt struct {
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Path string `long:"path" env:"PATH" default:"./var" description:"parent dir for bolt files"`
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Timeout time.Duration `long:"timeout" env:"TIMEOUT" default:"30s" description:"bolt timeout"`
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} `group:"bolt" namespace:"bolt" env-namespace:"BOLT"`
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}
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// AvatarGroup defines options group for avatar params
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type AvatarGroup struct {
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Type string `long:"type" env:"TYPE" description:"type of avatar storage" choice:"fs" choice:"bolt" choice:"mongo" default:"fs"`
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FS struct {
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Path string `long:"path" env:"PATH" default:"./var/avatars" description:"avatars location"`
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} `group:"fs" namespace:"fs" env-namespace:"FS"`
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Bolt struct {
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File string `long:"file" env:"FILE" default:"./var/avatars.db" description:"avatars bolt file location"`
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} `group:"bolt" namespace:"bolt" env-namespace:"bolt"`
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RszLmt int `long:"rsz-lmt" env:"RESIZE" default:"0" description:"max image size for resizing avatars on save"`
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}
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// CacheGroup defines options group for cache params
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type CacheGroup struct {
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Type string `long:"type" env:"TYPE" description:"type of cache" choice:"mem" choice:"mongo" choice:"none" default:"mem"`
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Max struct {
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Items int `long:"items" env:"ITEMS" default:"1000" description:"max cached items"`
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Value int `long:"value" env:"VALUE" default:"65536" description:"max size of cached value"`
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Size int64 `long:"size" env:"SIZE" default:"50000000" description:"max size of total cache"`
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} `group:"max" namespace:"max" env-namespace:"MAX"`
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}
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// MongoGroup holds all mongo params, used by store, avatar and cache
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type MongoGroup struct {
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URL string `long:"url" env:"URL" description:"mongo url"`
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DB string `long:"db" env:"DB" default:"remark42" description:"mongo database"`
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}
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// AdminGroup defines options group for admin params
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type AdminGroup struct {
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Type string `long:"type" env:"TYPE" description:"type of admin store" choice:"shared" choice:"mongo" default:"shared"`
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Shared struct {
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Admins []string `long:"id" env:"ID" description:"admin(s) ids" env-delim:","`
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Email string `long:"email" env:"EMAIL" default:"" description:"admin email"`
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} `group:"shared" namespace:"shared" env-namespace:"SHARED"`
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}
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// NotifyGroup defines options for notification
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type NotifyGroup struct {
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Type string `long:"type" env:"TYPE" description:"type of notification" choice:"none" choice:"telegram" default:"none"`
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QueueSize int `long:"queue" env:"QUEUE" description:"size of notification queue" default:"100"`
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Telegram struct {
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Token string `long:"token" env:"TOKEN" description:"telegram token"`
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Channel string `long:"chan" env:"CHAN" description:"telegram channel"`
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Timeout time.Duration `long:"timeout" env:"TIMEOUT" default:"5s" description:"telegram timeout"`
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API string `long:"api" env:"API" default:"https://api.telegram.org/bot" description:"telegram api prefix"`
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} `group:"telegram" namespace:"telegram" env-namespace:"TELEGRAM"`
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}
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// SSLGroup defines options group for server ssl params
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type SSLGroup struct {
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Type string `long:"type" env:"TYPE" description:"ssl (auto)support" choice:"none" choice:"static" choice:"auto" default:"none"`
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Port int `long:"port" env:"PORT" description:"port number for https server" default:"8443"`
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Cert string `long:"cert" env:"CERT" description:"path to cert.pem file"`
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Key string `long:"key" env:"KEY" description:"path to key.pem file"`
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ACMELocation string `long:"acme-location" env:"ACME_LOCATION" description:"dir where certificates will be stored by autocert manager" default:"./var/acme"`
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ACMEEmail string `long:"acme-email" env:"ACME_EMAIL" description:"admin email for certificate notifications"`
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}
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// serverApp holds all active objects
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type serverApp struct {
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*ServerCommand
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restSrv *api.Rest
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migratorSrv *api.Migrator
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exporter migrator.Exporter
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devAuth *provider.DevAuthServer
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dataService *service.DataStore
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avatarStore avatar.Store
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notifyService *notify.Service
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terminated chan struct{}
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}
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// Execute is the entry point for "server" command, called by flag parser
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func (s *ServerCommand) Execute(args []string) error {
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log.Printf("[INFO] start server on port %d", s.Port)
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resetEnv("SECRET", "AUTH_GOOGLE_CSEC", "AUTH_GITHUB_CSEC", "AUTH_FACEBOOK_CSEC", "AUTH_YANDEX_CSEC")
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ctx, cancel := context.WithCancel(context.Background())
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go func() { // catch signal and invoke graceful termination
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
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<-stop
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log.Print("[WARN] interrupt signal")
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cancel()
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}()
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app, err := s.newServerApp()
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if err != nil {
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log.Fatalf("[ERROR] failed to setup application, %+v", err)
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}
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if err = app.run(ctx); err != nil {
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log.Printf("[WARN] remark terminated with error %+v", err)
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return err
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}
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log.Printf("[INFO] remark terminated")
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return nil
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}
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// newServerApp prepares application and return it with all active parts
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// doesn't start anything
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func (s *ServerCommand) newServerApp() (*serverApp, error) {
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if err := makeDirs(s.BackupLocation); err != nil {
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return nil, err
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}
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if !strings.HasPrefix(s.RemarkURL, "http://") && !strings.HasPrefix(s.RemarkURL, "https://") {
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return nil, errors.Errorf("invalid remark42 url %s", s.RemarkURL)
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}
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log.Printf("[INFO] root url=%s", s.RemarkURL)
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storeEngine, err := s.makeDataStore()
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if err != nil {
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return nil, errors.Wrap(err, "failed to make data store engine")
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}
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adminStore, err := s.makeAdminStore()
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if err != nil {
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return nil, errors.Wrap(err, "failed to make admin store")
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}
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dataService := &service.DataStore{
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Interface: storeEngine,
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EditDuration: s.EditDuration,
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AdminStore: adminStore,
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MaxCommentSize: s.MaxCommentSize,
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MaxVotes: s.MaxVotes,
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}
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loadingCache, err := s.makeCache()
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if err != nil {
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return nil, errors.Wrap(err, "failed to make cache")
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}
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avatarStore, err := s.makeAvatarStore()
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if err != nil {
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return nil, errors.Wrap(err, "failed to make avatar store")
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}
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authenticator := auth.NewService(auth.Opts{
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URL: s.RemarkURL,
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Issuer: "remark42",
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TokenDuration: s.Auth.TTL.JWT,
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CookieDuration: s.Auth.TTL.Cookie,
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SecureCookies: strings.HasPrefix(s.RemarkURL, "https://"),
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SecretReader: token.SecretFunc(func(id string) (string, error) {
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return adminStore.Key(id)
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}),
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ClaimsUpd: token.ClaimsUpdFunc(func(c token.Claims) token.Claims {
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if c.User == nil {
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return c
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}
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c.User.SetAdmin(dataService.IsAdmin(c.Audience, c.User.ID))
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return c
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}),
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DevPasswd: s.DevPasswd,
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//Validator: dataService,
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AvatarStore: avatarStore,
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AvatarResizeLimit: s.Avatar.RszLmt,
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AvatarRoutePath: "/api/v1/avatar",
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})
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s.addAuthProviders(authenticator)
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// token TTL is 5 minutes, inactivity interval 7+ days by default
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// jwtService := auth.NewJWT(adminStore, strings.HasPrefix(s.RemarkURL, "https://"), s.Auth.TTL.JWT, s.Auth.TTL.Cookie)
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// avatarProxy := &proxy.Avatar{
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// Store: avatarStore,
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// RoutePath: "/api/v1/avatar",
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// RemarkURL: strings.TrimSuffix(s.RemarkURL, "/"),
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// }
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exporter := &migrator.Native{DataStore: dataService}
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migr := &api.Migrator{
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Cache: loadingCache,
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NativeImporter: &migrator.Native{DataStore: dataService},
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DisqusImporter: &migrator.Disqus{DataStore: dataService},
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WordPressImporter: &migrator.WordPress{DataStore: dataService},
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NativeExporter: &migrator.Native{DataStore: dataService},
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KeyStore: adminStore,
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}
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notifyService, err := s.makeNotify(dataService)
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if err != nil {
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log.Printf("[WARN] failed to make notify service, %s", err)
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notifyService = notify.NopService // disable notifier
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}
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imgProxy := &proxy.Image{Enabled: s.ImageProxy, RoutePath: "/api/v1/img", RemarkURL: s.RemarkURL}
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commentFormatter := store.NewCommentFormatter(imgProxy)
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sslConfig, err := s.makeSSLConfig()
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if err != nil {
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return nil, errors.Wrap(err, "failed to make config of ssl server params")
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}
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srv := &api.Rest{
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Version: s.Revision,
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DataService: dataService,
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WebRoot: s.WebRoot,
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RemarkURL: s.RemarkURL,
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ImageProxy: imgProxy,
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CommentFormatter: commentFormatter,
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Migrator: migr,
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ReadOnlyAge: s.ReadOnlyAge,
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SharedSecret: s.SharedSecret,
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Authenticator: *authenticator,
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Cache: loadingCache,
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NotifyService: notifyService,
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SSLConfig: sslConfig,
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}
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srv.ScoreThresholds.Low, srv.ScoreThresholds.Critical = s.LowScore, s.CriticalScore
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var devAuth provider.DevAuthServer
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if s.Auth.Dev {
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p, err := authenticator.Provider("dev")
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if err != nil {
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return nil, errors.Wrap(err, "can't pick dev provider")
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}
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devAuth = provider.DevAuthServer{Provider: p}
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}
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return &serverApp{
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ServerCommand: s,
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restSrv: srv,
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migratorSrv: migr,
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exporter: exporter,
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devAuth: &devAuth,
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dataService: dataService,
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avatarStore: avatarStore,
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notifyService: notifyService,
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terminated: make(chan struct{}),
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}, nil
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}
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// Run all application objects
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func (a *serverApp) run(ctx context.Context) error {
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if a.DevPasswd != "" {
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log.Printf("[WARN] running in dev mode")
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}
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go func() {
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// shutdown on context cancellation
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<-ctx.Done()
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log.Print("[INFO] shutdown initiated")
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a.restSrv.Shutdown()
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if a.devAuth != nil {
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a.devAuth.Shutdown()
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}
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if e := a.dataService.Close(); e != nil {
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log.Printf("[WARN] failed to close data store, %s", e)
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}
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if e := a.avatarStore.Close(); e != nil {
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log.Printf("[WARN] failed to close avatar store, %s", e)
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}
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a.notifyService.Close()
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log.Print("[INFO] shutdown completed")
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}()
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a.activateBackup(ctx) // runs in goroutine for each site
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if a.Auth.Dev {
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go a.devAuth.Run() // dev oauth2 server on :8084
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}
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a.restSrv.Run(a.Port)
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close(a.terminated)
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return nil
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}
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// Wait for application completion (termination)
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func (a *serverApp) Wait() {
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<-a.terminated
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}
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// activateBackup runs background backups for each site
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func (a *serverApp) activateBackup(ctx context.Context) {
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for _, siteID := range a.Sites {
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backup := migrator.AutoBackup{
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Exporter: a.exporter,
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BackupLocation: a.BackupLocation,
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SiteID: siteID,
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KeepMax: a.MaxBackupFiles,
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Duration: 24 * time.Hour,
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}
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go backup.Do(ctx)
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}
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}
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// makeDataStore creates store for all sites
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func (s *ServerCommand) makeDataStore() (result engine.Interface, err error) {
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log.Printf("[INFO] make data store, type=%s", s.Store.Type)
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switch s.Store.Type {
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case "bolt":
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if err = makeDirs(s.Store.Bolt.Path); err != nil {
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return nil, errors.Wrap(err, "failed to create bolt store")
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}
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sites := []engine.BoltSite{}
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for _, site := range s.Sites {
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sites = append(sites, engine.BoltSite{SiteID: site, FileName: fmt.Sprintf("%s/%s.db", s.Store.Bolt.Path, site)})
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}
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result, err = engine.NewBoltDB(bolt.Options{Timeout: s.Store.Bolt.Timeout}, sites...)
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case "mongo":
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mgServer, e := s.makeMongo()
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if e != nil {
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return result, errors.Wrap(e, "failed to create mongo server")
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}
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conn := mongo.NewConnection(mgServer, s.Mongo.DB, "")
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result, err = engine.NewMongo(conn, 500, 100*time.Millisecond)
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default:
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return nil, errors.Errorf("unsupported store type %s", s.Store.Type)
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}
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return result, errors.Wrap(err, "can't initialize data store")
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}
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func (s *ServerCommand) makeAvatarStore() (avatar.Store, error) {
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log.Printf("[INFO] make avatar store, type=%s", s.Avatar.Type)
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switch s.Avatar.Type {
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case "fs":
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if err := makeDirs(s.Avatar.FS.Path); err != nil {
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return nil, err
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}
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return avatar.NewLocalFS(s.Avatar.FS.Path), nil
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case "mongo":
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mgServer, err := s.makeMongo()
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if err != nil {
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return nil, errors.Wrap(err, "failed to create mongo server")
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}
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conn := mongo.NewConnection(mgServer, s.Mongo.DB, "")
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return avatar.NewGridFS(conn), nil
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case "bolt":
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if err := makeDirs(path.Dir(s.Avatar.Bolt.File)); err != nil {
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return nil, err
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}
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return avatar.NewBoltDB(s.Avatar.Bolt.File, bolt.Options{})
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}
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return nil, errors.Errorf("unsupported avatar store type %s", s.Avatar.Type)
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}
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func (s *ServerCommand) makeAdminStore() (admin.Store, error) {
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log.Printf("[INFO] make admin store, type=%s", s.Admin.Type)
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switch s.Admin.Type {
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case "shared":
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if s.Admin.Shared.Email == "" { // no admin email, use admin@domain
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if u, err := url.Parse(s.RemarkURL); err == nil {
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s.Admin.Shared.Email = "admin@" + u.Host
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}
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}
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return admin.NewStaticStore(s.SharedSecret, s.Admin.Shared.Admins, s.Admin.Shared.Email), nil
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case "mongo":
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mgServer, e := s.makeMongo()
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if e != nil {
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return nil, errors.Wrap(e, "failed to create mongo server")
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}
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conn := mongo.NewConnection(mgServer, s.Mongo.DB, "admin")
|
|
return admin.NewMongoStore(conn), nil
|
|
default:
|
|
return nil, errors.Errorf("unsupported admin store type %s", s.Admin.Type)
|
|
}
|
|
}
|
|
|
|
func (s *ServerCommand) makeCache() (cache.LoadingCache, error) {
|
|
log.Printf("[INFO] make cache, type=%s", s.Cache.Type)
|
|
switch s.Cache.Type {
|
|
case "mem":
|
|
return cache.NewMemoryCache(cache.MaxCacheSize(s.Cache.Max.Size), cache.MaxValSize(s.Cache.Max.Value),
|
|
cache.MaxKeys(s.Cache.Max.Items))
|
|
// case "mongo":
|
|
// mgServer, err := s.makeMongo()
|
|
// if err != nil {
|
|
// return nil, errors.Wrap(err, "failed to create mongo server")
|
|
// }
|
|
// conn := mongo.NewConnection(mgServer, s.Mongo.DB, "cache")
|
|
// return cache.NewMongoCache(conn, cache.MaxCacheSize(s.Cache.Max.Size), cache.MaxValSize(s.Cache.Max.Value),
|
|
// cache.MaxKeys(s.Cache.Max.Items))
|
|
case "none":
|
|
return &cache.Nop{}, nil
|
|
}
|
|
return nil, errors.Errorf("unsupported cache type %s", s.Cache.Type)
|
|
}
|
|
|
|
func (s *ServerCommand) makeMongo() (result *mongo.Server, err error) {
|
|
if s.Mongo.URL == "" {
|
|
return nil, errors.New("no mongo URL provided")
|
|
}
|
|
return mongo.NewServerWithURL(s.Mongo.URL, 10*time.Second)
|
|
}
|
|
|
|
func (s *ServerCommand) addAuthProviders(authenticator *auth.Service) {
|
|
|
|
providers := 0
|
|
if s.Auth.Google.CID != "" && s.Auth.Google.CSEC != "" {
|
|
authenticator.AddProvider("google", s.Auth.Google.CID, s.Auth.Google.CSEC)
|
|
providers++
|
|
}
|
|
if s.Auth.Github.CID != "" && s.Auth.Github.CSEC != "" {
|
|
authenticator.AddProvider("github", s.Auth.Github.CID, s.Auth.Github.CSEC)
|
|
providers++
|
|
}
|
|
if s.Auth.Facebook.CID != "" && s.Auth.Facebook.CSEC != "" {
|
|
authenticator.AddProvider("facebook", s.Auth.Facebook.CID, s.Auth.Facebook.CSEC)
|
|
providers++
|
|
}
|
|
if s.Auth.Yandex.CID != "" && s.Auth.Yandex.CSEC != "" {
|
|
authenticator.AddProvider("yandex", s.Auth.Yandex.CID, s.Auth.Yandex.CSEC)
|
|
providers++
|
|
}
|
|
if s.Auth.Dev {
|
|
authenticator.AddProvider("dev", "", "")
|
|
providers++
|
|
}
|
|
|
|
if providers == 0 {
|
|
log.Printf("[WARN] no auth providers defined")
|
|
}
|
|
}
|
|
|
|
func (s *ServerCommand) makeNotify(dataStore *service.DataStore) (*notify.Service, error) {
|
|
log.Printf("[INFO] make notify, type=%s", s.Notify.Type)
|
|
switch s.Notify.Type {
|
|
case "telegram":
|
|
tg, err := notify.NewTelegram(s.Notify.Telegram.Token, s.Notify.Telegram.Channel,
|
|
s.Notify.Telegram.Timeout, s.Notify.Telegram.API)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to create telegram notification destination")
|
|
}
|
|
return notify.NewService(dataStore, s.Notify.QueueSize, tg), nil
|
|
case "none":
|
|
return notify.NopService, nil
|
|
}
|
|
return nil, errors.Errorf("unsupported notification type %q", s.Notify.Type)
|
|
}
|
|
|
|
func (s *ServerCommand) makeSSLConfig() (config api.SSLConfig, err error) {
|
|
switch s.SSL.Type {
|
|
case "none":
|
|
config.SSLMode = api.None
|
|
case "static":
|
|
if s.SSL.Cert == "" {
|
|
return config, errors.New("path to cert.pem is required")
|
|
}
|
|
if s.SSL.Key == "" {
|
|
return config, errors.New("path to key.pem is required")
|
|
}
|
|
config.SSLMode = api.Static
|
|
config.Port = s.SSL.Port
|
|
config.Cert = s.SSL.Cert
|
|
config.Key = s.SSL.Key
|
|
case "auto":
|
|
config.SSLMode = api.Auto
|
|
config.Port = s.SSL.Port
|
|
config.ACMELocation = s.SSL.ACMELocation
|
|
if s.SSL.ACMEEmail != "" {
|
|
config.ACMEEmail = s.SSL.ACMEEmail
|
|
} else if s.Admin.Type == "shared" && s.Admin.Shared.Email != "" {
|
|
config.ACMEEmail = s.Admin.Shared.Email
|
|
} else if u, e := url.Parse(s.RemarkURL); e == nil {
|
|
config.ACMEEmail = "admin@" + u.Hostname()
|
|
}
|
|
}
|
|
return config, err
|
|
}
|