254 lines
8.0 KiB
Go
254 lines
8.0 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net/http"
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"os"
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"strings"
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"time"
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"github.com/coreos/bbolt"
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"github.com/gorilla/sessions"
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"github.com/hashicorp/logutils"
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"github.com/jessevdk/go-flags"
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"github.com/pkg/errors"
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"github.com/umputun/remark/app/migrator"
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"github.com/umputun/remark/app/rest"
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"github.com/umputun/remark/app/rest/api"
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"github.com/umputun/remark/app/rest/auth"
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"github.com/umputun/remark/app/rest/avatar"
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"github.com/umputun/remark/app/store"
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)
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var opts struct {
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BoltPath string `long:"bolt" env:"BOLTDB_PATH" default:"./var" description:"parent dir for bolt files"`
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Sites []string `long:"site" env:"SITE" default:"remark" description:"site names" env-delim:","`
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RemarkURL string `long:"url" env:"REMARK_URL" default:"https://remark42.com" description:"url to remark"`
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Admins []string `long:"admin" env:"ADMIN" description:"admin(s) names" env-delim:","`
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DevPasswd string `long:"dev-passwd" env:"DEV_PASSWD" default:"" description:"development mode password"`
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Dbg bool `long:"dbg" env:"DEBUG" description:"debug mode"`
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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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SessionStore string `long:"session" env:"SESSION_STORE" default:"./var/session" description:"session store location"`
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AvatarStore string `long:"avatars" env:"AVATAR_STORE" default:"./var/avatars" description:"avatars location"`
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MaxCommentSize int `long:"max-comment" env:"MAX_COMMENT_SIZE" default:"2048" description:"max comment size"`
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SecretKey string `long:"secret" env:"SECRET_KEY" required:"true" description:"secret key"`
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GoogleCID string `long:"google-cid" env:"REMARK_GOOGLE_CID" description:"Google OAuth client ID"`
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GoogleCSEC string `long:"google-csec" env:"REMARK_GOOGLE_CSEC" description:"Google OAuth client secret"`
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GithubCID string `long:"github-cid" env:"REMARK_GITHUB_CID" description:"Github OAuth client ID"`
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GithubCSEC string `long:"github-csec" env:"REMARK_GITHUB_CSEC" description:"Github OAuth client secret"`
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FacebookCID string `long:"facebook-cid" env:"REMARK_FACEBOOK_CID" description:"Facebook OAuth client ID"`
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FacebookCSEC string `long:"facebook-csec" env:"REMARK_FACEBOOK_CSEC" description:"Facebook OAuth client secret"`
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DisqusCID string `long:"disqus-cid" env:"REMARK_DISQUS_CID" description:"Disqus OAuth client ID"`
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DisqusCSEC string `long:"disqus-csec" env:"REMARK_DISQUS_CSEC" description:"Disqus OAuth client secret"`
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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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}
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var revision = "unknown"
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func main() {
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fmt.Printf("remark %s\n", revision)
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p := flags.NewParser(&opts, flags.Default)
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if _, e := p.ParseArgs(os.Args[1:]); e != nil {
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os.Exit(1)
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}
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setupLog(opts.Dbg)
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log.Print("[INFO] started remark")
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if err := makeDirs(opts.BoltPath, opts.SessionStore, opts.BackupLocation, opts.AvatarStore); err != nil {
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log.Fatalf("[ERROR] can't create directories, %+v", err)
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}
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dataStore := makeBoltStore(opts.Sites)
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if opts.DevPasswd != "" {
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log.Printf("[WARN] running in dev mode")
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}
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dataService := store.Service{
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Interface: dataStore,
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EditDuration: 5 * time.Minute,
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Secret: opts.SecretKey,
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MaxCommentSize: opts.MaxCommentSize,
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}
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sessionStore := func() sessions.Store {
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sess := sessions.NewFilesystemStore(opts.SessionStore, []byte(opts.SecretKey))
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sess.Options.HttpOnly = true
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sess.Options.Secure = true
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sess.Options.MaxAge = 3600 * 24 * 365
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sess.Options.Path = "/"
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return sess
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}()
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exporter := migrator.Remark{DataStore: &dataService}
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cache := rest.NewLoadingCache(4*time.Hour, 1*time.Minute, postFlushFn)
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activateBackup(&exporter)
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importSrv := api.Import{
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Version: revision,
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Cache: cache,
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NativeImporter: &migrator.Remark{DataStore: &dataService},
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DisqusImporter: &migrator.Disqus{DataStore: &dataService},
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SecretKey: opts.SecretKey,
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}
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go importSrv.Run(opts.Port + 1)
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avatarProxy := &avatar.Proxy{
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StorePath: opts.AvatarStore,
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RoutePath: "/api/v1/avatar",
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RemarkURL: strings.TrimSuffix(opts.RemarkURL, "/"),
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}
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srv := api.Rest{
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Version: revision,
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DataService: dataService,
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Exporter: &exporter,
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WebRoot: opts.WebRoot,
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Authenticator: auth.Authenticator{
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Admins: opts.Admins,
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SessionStore: sessionStore,
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Providers: makeAuthProviders(sessionStore, avatarProxy),
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AvatarProxy: avatarProxy,
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DevPasswd: opts.DevPasswd,
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},
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Cache: cache,
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}
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srv.Run(opts.Port)
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}
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// activateBackup runs background backups for each site
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func activateBackup(exporter migrator.Exporter) {
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for _, siteID := range opts.Sites {
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backup := migrator.AutoBackup{
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Exporter: exporter,
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BackupLocation: opts.BackupLocation,
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SiteID: siteID,
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KeepMax: opts.MaxBackupFiles,
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Duration: 24 * time.Hour,
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}
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go backup.Do()
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}
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}
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// makeBoltStore creates store for all sites
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func makeBoltStore(siteNames []string) store.Interface {
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sites := []store.BoltSite{}
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for _, site := range siteNames {
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sites = append(sites, store.BoltSite{SiteID: site, FileName: fmt.Sprintf("%s/%s.db", opts.BoltPath, site)})
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}
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result, err := store.NewBoltDB(bolt.Options{Timeout: 30 * time.Second}, sites...)
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if err != nil {
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log.Fatalf("[ERROR] can't initialize data store, %+v", err)
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}
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return result
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}
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// mkdir -p for all dirs
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func makeDirs(dirs ...string) error {
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// exists returns whether the given file or directory exists or not
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exists := func(path string) (bool, error) {
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_, err := os.Stat(path)
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if err == nil {
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return true, nil
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}
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if os.IsNotExist(err) {
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return false, nil
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}
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return true, err
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}
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for _, dir := range dirs {
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ex, err := exists(dir)
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if err != nil {
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return errors.Wrapf(err, "can't check directory status for %s", dir)
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}
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if !ex {
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if e := os.MkdirAll(dir, 0700); e != nil {
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return errors.Wrapf(err, "can't make directory %s", dir)
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}
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}
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}
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return nil
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}
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func makeAuthProviders(sessionStore sessions.Store, avatarProxy *avatar.Proxy) (providers []auth.Provider) {
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makeParams := func(cid, secret string) auth.Params {
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return auth.Params{
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AvatarProxy: avatarProxy,
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SessionStore: sessionStore,
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RemarkURL: opts.RemarkURL,
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Cid: cid,
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Csecret: secret,
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}
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}
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if opts.GoogleCID != "" && opts.GoogleCSEC != "" {
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providers = append(providers, auth.NewGoogle(makeParams(opts.GoogleCID, opts.GoogleCSEC)))
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}
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if opts.GithubCID != "" && opts.GithubCSEC != "" {
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providers = append(providers, auth.NewGithub(makeParams(opts.GithubCID, opts.GithubCSEC)))
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}
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if opts.FacebookCID != "" && opts.FacebookCSEC != "" {
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providers = append(providers, auth.NewFacebook(makeParams(opts.FacebookCID, opts.FacebookCSEC)))
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}
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if opts.DisqusCID != "" && opts.DisqusCSEC != "" {
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providers = append(providers, auth.NewDisqus(makeParams(opts.DisqusCID, opts.DisqusCSEC)))
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}
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if len(providers) == 0 {
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log.Printf("[WARN] no auth providers defined")
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}
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return providers
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}
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// post-flush callback invoked by cache after each flush in async way
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func postFlushFn() {
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// list of heavy urls for pre-heating on cache change
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urls := []string{
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"http://localhost:%d/api/v1/list?site=%s",
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"http://localhost:%d/api/v1/last/50?site=%s",
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}
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for _, site := range opts.Sites {
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for _, u := range urls {
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resp, err := http.Get(fmt.Sprintf(u, opts.Port, site))
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if err != nil {
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log.Printf("[WARN] failed to refresh cached list for %s, %s", site, err)
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return
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}
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if err = resp.Body.Close(); err != nil {
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log.Printf("[WARN] failed to close response body, %s", err)
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}
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}
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}
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}
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func setupLog(dbg bool) {
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filter := &logutils.LevelFilter{
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Levels: []logutils.LogLevel{"DEBUG", "INFO", "WARN", "ERROR"},
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MinLevel: logutils.LogLevel("INFO"),
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Writer: os.Stdout,
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}
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log.SetFlags(log.Ldate | log.Ltime)
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if dbg {
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log.SetFlags(log.Ldate | log.Ltime | log.Lmicroseconds | log.Lshortfile)
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filter.MinLevel = logutils.LogLevel("DEBUG")
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}
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log.SetOutput(filter)
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}
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