Example #1
0
func newFromConfig(cfg jsonconfig.Obj, host *importer.Host) (importer.Importer, error) {
	apiKey := cfg.RequiredString("apiKey")
	if err := cfg.Validate(); err != nil {
		return nil, err
	}
	parts := strings.Split(apiKey, ":")
	if len(parts) != 2 {
		return nil, fmt.Errorf("Foursquare importer: Invalid apiKey configuration: %q", apiKey)
	}
	clientID, clientSecret := parts[0], parts[1]
	im := &imp{
		host:         host,
		tokenCache:   &tokenCache{},
		imageFileRef: make(map[string]blob.Ref),
		oauthConfig: &oauth.Config{
			ClientId:     clientID,
			ClientSecret: clientSecret,
			AuthURL:      "https://foursquare.com/oauth2/authenticate",
			TokenURL:     "https://foursquare.com/oauth2/access_token",
			RedirectURL:  host.BaseURL + "callback",
		},
	}
	// TODO: schedule work?
	return im, nil
}
Example #2
0
// NewKeyValue returns a KeyValue implementation on top of a
// github.com/cznic/kv file.
func NewKeyValue(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
	file := cfg.RequiredString("file")
	if err := cfg.Validate(); err != nil {
		return nil, err
	}
	createOpen := kv.Open
	verb := "opening"
	if _, err := os.Stat(file); os.IsNotExist(err) {
		createOpen = kv.Create
		verb = "creating"
	}
	opts := &kv.Options{
		Locker: func(dbname string) (io.Closer, error) {
			lkfile := dbname + ".lock"
			cl, err := lock.Lock(lkfile)
			if err != nil {
				return nil, fmt.Errorf("failed to acquire lock on %s: %v", lkfile, err)
			}
			return cl, nil
		},
	}
	db, err := createOpen(file, opts)
	if err != nil {
		return nil, fmt.Errorf("error %s %s: %v", verb, file, err)
	}
	is := &kvis{
		db:   db,
		opts: opts,
		path: file,
	}
	return is, nil
}
Example #3
0
func newKeyValueFromConfig(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
	file := cfg.RequiredString("file")
	if err := cfg.Validate(); err != nil {
		return nil, err
	}
	return NewKeyValue(file)
}
Example #4
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
	blobPrefix := config.RequiredString("blobSource")
	kvConfig := config.RequiredObject("storage")
	if err := config.Validate(); err != nil {
		return nil, err
	}
	kv, err := sorted.NewKeyValue(kvConfig)
	if err != nil {
		return nil, err
	}
	sto, err := ld.GetStorage(blobPrefix)
	if err != nil {
		return nil, err
	}

	ix, err := New(kv)
	// TODO(mpl): next time we need to do another fix, make a new error
	// type that lets us apply the needed fix depending on its value or
	// something. For now just one value/fix.
	if err == errMissingWholeRef {
		// TODO: maybe we don't want to do that automatically. Brad says
		// we have to think about the case on GCE/CoreOS in particular.
		if err := ix.fixMissingWholeRef(sto); err != nil {
			ix.Close()
			return nil, fmt.Errorf("could not fix missing wholeRef entries: %v", err)
		}
		ix, err = New(kv)
	}
	if err != nil {
		return nil, err
	}
	ix.InitBlobSource(sto)

	return ix, err
}
Example #5
0
func newFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (storage blobserver.Storage, err error) {
	sto := &condStorage{}

	receive := conf.OptionalStringOrObject("write")
	read := conf.RequiredString("read")
	remove := conf.OptionalString("remove", "")
	if err := conf.Validate(); err != nil {
		return nil, err
	}

	if receive != nil {
		sto.storageForReceive, err = buildStorageForReceive(ld, receive)
		if err != nil {
			return
		}
	}

	sto.read, err = ld.GetStorage(read)
	if err != nil {
		return
	}

	if remove != "" {
		sto.remove, err = ld.GetStorage(remove)
		if err != nil {
			return
		}
	}
	return sto, nil
}
// Reads google storage config and creates a Client.  Exits on error.
func doConfig(t *testing.T) (gsa *Client, bucket string) {
	gsConfigPath := filepath.Join(osutil.CamliConfigDir(), "gstestconfig.json")

	if _, err := os.Stat(gsConfigPath); os.IsNotExist(err) {
		test.DependencyErrorOrSkip(t)
		t.Fatalf("Missing config file: %v", err)
	}
	cf, err := jsonconfig.ReadFile(gsConfigPath)
	if err != nil {
		t.Fatalf("Failed to read config: %v", err)
	}

	var config jsonconfig.Obj
	config = cf.RequiredObject("gsconf")
	if err := cf.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}

	auth := config.RequiredObject("auth")
	bucket = config.RequiredString("bucket")
	if err := config.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}

	gsa = NewClient(MakeOauthTransport(auth.RequiredString("client_id"),
		auth.RequiredString("client_secret"),
		auth.RequiredString("refresh_token")))

	if err := auth.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}
	return
}
// Reads google storage config and creates a Client.  Exits on error.
func doConfig(t *testing.T) (gsa *Client, bucket string) {
	if *gsConfigPath == "" {
		t.Skip("Skipping manual test. Set flag --gs_config_path to test Google Storage.")
	}

	cf, err := jsonconfig.ReadFile(*gsConfigPath)
	if err != nil {
		t.Fatalf("Failed to read config: %v", err)
	}

	var config jsonconfig.Obj
	config = cf.RequiredObject("gsconf")
	if err := cf.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}

	auth := config.RequiredObject("auth")
	bucket = config.RequiredString("bucket")
	if err := config.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}

	gsa = NewClient(MakeOauthTransport(auth.RequiredString("client_id"),
		auth.RequiredString("client_secret"),
		auth.RequiredString("refresh_token")))

	if err := auth.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}
	return
}
Example #8
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
	var (
		origin        = config.RequiredString("origin")
		cache         = config.RequiredString("cache")
		kvConf        = config.RequiredObject("meta")
		maxCacheBytes = config.OptionalInt64("maxCacheBytes", 512<<20)
	)
	if err := config.Validate(); err != nil {
		return nil, err
	}
	cacheSto, err := ld.GetStorage(cache)
	if err != nil {
		return nil, err
	}
	originSto, err := ld.GetStorage(origin)
	if err != nil {
		return nil, err
	}
	kv, err := sorted.NewKeyValue(kvConf)
	if err != nil {
		return nil, err
	}

	// TODO: enumerate through kv and calculate current size.
	// Maybe also even enumerate through cache to see if they match.
	// Or even: keep it only in memory and not in kv?

	s := &sto{
		origin:        originSto,
		cache:         cacheSto,
		maxCacheBytes: maxCacheBytes,
		kv:            kv,
	}
	return s, nil
}
Example #9
0
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
	path := config.RequiredString("path")
	if err := config.Validate(); err != nil {
		return nil, err
	}
	return New(path)
}
Example #10
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
	blobPrefix := config.RequiredString("blobSource")
	postgresConf, err := postgres.ConfigFromJSON(config)
	if err != nil {
		return nil, err
	}
	kv, err := postgres.NewKeyValue(postgresConf)
	if err != nil {
		return nil, err
	}

	ix, err := index.New(kv)
	if err != nil {
		return nil, err
	}

	sto, err := ld.GetStorage(blobPrefix)
	if err != nil {
		ix.Close()
		return nil, err
	}
	ix.BlobSource = sto
	// Good enough, for now:
	ix.KeyFetcher = ix.BlobSource

	return ix, nil
}
Example #11
0
func newHandlerFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (http.Handler, error) {
	indexPrefix := conf.RequiredString("index") // TODO: add optional help tips here?
	ownerBlobStr := conf.RequiredString("owner")
	devBlockStartupPrefix := conf.OptionalString("devBlockStartupOn", "")
	if err := conf.Validate(); err != nil {
		return nil, err
	}

	if devBlockStartupPrefix != "" {
		_, err := ld.GetHandler(devBlockStartupPrefix)
		if err != nil {
			return nil, fmt.Errorf("search handler references bogus devBlockStartupOn handler %s: %v", devBlockStartupPrefix, err)
		}
	}

	indexHandler, err := ld.GetHandler(indexPrefix)
	if err != nil {
		return nil, fmt.Errorf("search config references unknown handler %q", indexPrefix)
	}
	indexer, ok := indexHandler.(Index)
	if !ok {
		return nil, fmt.Errorf("search config references invalid indexer %q (actually a %T)", indexPrefix, indexHandler)
	}
	ownerBlobRef, ok := blob.Parse(ownerBlobStr)
	if !ok {
		return nil, fmt.Errorf("search 'owner' has malformed blobref %q; expecting e.g. sha1-xxxxxxxxxxxx",
			ownerBlobStr)
	}
	return &Handler{
		index: indexer,
		owner: ownerBlobRef,
	}, nil
}
Example #12
0
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
	url := config.RequiredString("url")
	auth := config.RequiredString("auth")
	skipStartupCheck := config.OptionalBool("skipStartupCheck", false)
	if err := config.Validate(); err != nil {
		return nil, err
	}

	client := client.New(url)
	if err = client.SetupAuthFromString(auth); err != nil {
		return nil, err
	}
	client.SetLogger(log.New(os.Stderr, "remote", log.LstdFlags))
	sto := &remoteStorage{
		client: client,
	}
	if !skipStartupCheck {
		// Do a quick dummy operation to check that our credentials are
		// correct.
		// TODO(bradfitz,mpl): skip this operation smartly if it turns out this is annoying/slow for whatever reason.
		c := make(chan blob.SizedRef, 1)
		err = sto.EnumerateBlobs(context.TODO(), c, "", 1)
		if err != nil {
			return nil, err
		}
	}
	return sto, nil
}
Example #13
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (bs blobserver.Storage, err error) {
	sto := &storage{
		SimpleBlobHubPartitionMap: &blobserver.SimpleBlobHubPartitionMap{},
	}

	key := config.OptionalString("key", "")
	keyFile := config.OptionalString("keyFile", "")
	switch {
	case key != "":
		sto.key = []byte(key)
	case keyFile != "":
		// TODO: check that keyFile's unix permissions aren't too permissive.
		sto.key, err = ioutil.ReadFile(keyFile)
		if err != nil {
			return
		}
	}
	sto.blobs, err = ld.GetStorage(config.RequiredString("blobs"))
	if err != nil {
		return
	}
	sto.meta, err = ld.GetStorage(config.RequiredString("meta"))
	if err != nil {
		return
	}
	if err := config.Validate(); err != nil {
		return nil, err
	}
	if sto.key == nil {
		// TODO: add a way to prompt from stdin on start? or keychain support?
		return nil, errors.New("no encryption key set with 'key' or 'keyFile'")
	}
	return sto, nil
}
Example #14
0
func indexFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
	is := &indexStorage{}
	var (
		blobPrefix = config.RequiredString("blobSource")
		ns         = config.OptionalString("namespace", "")
	)
	if err := config.Validate(); err != nil {
		return nil, err
	}
	sto, err := ld.GetStorage(blobPrefix)
	if err != nil {
		return nil, err
	}
	is.ns, err = sanitizeNamespace(ns)
	if err != nil {
		return nil, err
	}

	ix, err := index.New(is)
	if err != nil {
		return nil, err
	}
	ix.BlobSource = sto
	ix.KeyFetcher = ix.BlobSource // TODO(bradfitz): global search? something else?
	return ix, nil
}
Example #15
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
	blobPrefix := config.RequiredString("blobSource")
	kvConfig := config.RequiredObject("storage")
	if err := config.Validate(); err != nil {
		return nil, err
	}
	kv, err := sorted.NewKeyValue(kvConfig)
	if err != nil {
		return nil, err
	}

	ix, err := New(kv)
	if err != nil {
		return nil, err
	}

	sto, err := ld.GetStorage(blobPrefix)
	if err != nil {
		ix.Close()
		return nil, err
	}
	ix.BlobSource = sto

	// Good enough, for now:
	ix.KeyFetcher = ix.BlobSource

	return ix, err
}
Example #16
0
func newMongoIndexFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
	blobPrefix := config.RequiredString("blobSource")
	mgw := &MongoWrapper{
		Servers:    config.OptionalString("host", "localhost"),
		Database:   config.RequiredString("database"),
		User:       config.OptionalString("user", ""),
		Password:   config.OptionalString("password", ""),
		Collection: collectionName,
	}
	if err := config.Validate(); err != nil {
		return nil, err
	}
	sto, err := ld.GetStorage(blobPrefix)
	if err != nil {
		return nil, err
	}

	ix, err := newMongoIndex(mgw)
	if err != nil {
		return nil, err
	}
	ix.BlobSource = sto

	// Good enough, for now:
	ix.KeyFetcher = ix.BlobSource

	if wipe, _ := strconv.ParseBool(os.Getenv("CAMLI_MONGO_WIPE")); wipe {
		err = ix.Storage().Delete("")
		if err != nil {
			return nil, err
		}
	}

	return ix, err
}
Example #17
0
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
	auth := config.RequiredObject("auth")
	oauthConf := &oauth.Config{
		ClientId:     auth.RequiredString("client_id"),
		ClientSecret: auth.RequiredString("client_secret"),
		AuthURL:      GoogleOAuth2AuthURL,
		TokenURL:     GoogleOAuth2TokenURL,
	}

	// force refreshes the access token on start, make sure
	// refresh request in parallel are being started
	transport := &oauth.Transport{
		Token: &oauth.Token{
			AccessToken:  "",
			RefreshToken: auth.RequiredString("refresh_token"),
			Expiry:       time.Now(),
		},
		Config:    oauthConf,
		Transport: http.DefaultTransport,
	}

	service, err := service.New(transport, config.RequiredString("parent_id"))
	sto := &driveStorage{
		service: service,
	}
	return sto, err
}
Example #18
0
// newKeyValueFromJSONConfig returns a KeyValue implementation on top of a
// github.com/syndtr/goleveldb/leveldb file.
func newKeyValueFromJSONConfig(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
	file := cfg.RequiredString("file")
	if err := cfg.Validate(); err != nil {
		return nil, err
	}
	strictness := opt.DefaultStrict
	if env.IsDev() {
		// Be more strict in dev mode.
		strictness = opt.StrictAll
	}
	opts := &opt.Options{
		// The default is 10,
		// 8 means 2.126% or 1/47th disk check rate,
		// 10 means 0.812% error rate (1/2^(bits/1.44)) or 1/123th disk check rate,
		// 12 means 0.31% or 1/322th disk check rate.
		// TODO(tgulacsi): decide which number is the best here. Till that go with the default.
		Filter: filter.NewBloomFilter(10),
		Strict: strictness,
	}
	db, err := leveldb.OpenFile(file, opts)
	if err != nil {
		return nil, err
	}
	is := &kvis{
		db:       db,
		path:     file,
		opts:     opts,
		readOpts: &opt.ReadOptions{Strict: strictness},
		// On machine crash we want to reindex anyway, and
		// fsyncs may impose great performance penalty.
		writeOpts: &opt.WriteOptions{Sync: false},
	}
	return is, nil
}
Example #19
0
// Reads google storage config and creates a Client.  Exits on error.
func doConfig(t *testing.T) (gsa *Client, bucket string) {
	if *gsConfigPath == "" {
		t.Skip("Skipping manual test. Set flag --gs_config_path to test Google Storage.")
	}

	cf, err := jsonconfig.ReadFile(*gsConfigPath)
	if err != nil {
		t.Fatalf("Failed to read config: %v", err)
	}

	var config jsonconfig.Obj
	config = cf.RequiredObject("gsconf")
	if err := cf.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}

	auth := config.RequiredObject("auth")
	bucket = config.RequiredString("bucket")
	if err := config.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}

	gsa = NewClient(oauth2.NewClient(oauth2.NoContext, oauthutil.NewRefreshTokenSource(&oauth2.Config{
		Scopes:       []string{Scope},
		Endpoint:     google.Endpoint,
		ClientID:     auth.RequiredString("client_id"),
		ClientSecret: auth.RequiredString("client_secret"),
		RedirectURL:  oauthutil.TitleBarRedirectURL,
	}, auth.RequiredString("refresh_token"))))

	if err := auth.Validate(); err != nil {
		t.Fatalf("Invalid config: %v", err)
	}
	return
}
Example #20
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
	blobPrefix := config.RequiredString("blobSource")
	file := config.RequiredString("file")
	if err := config.Validate(); err != nil {
		return nil, err
	}

	is, closer, err := NewStorage(file)
	if err != nil {
		return nil, err
	}

	sto, err := ld.GetStorage(blobPrefix)
	if err != nil {
		closer.Close()
		return nil, err
	}

	ix := index.New(is)
	if err != nil {
		return nil, err
	}
	ix.BlobSource = sto

	// Good enough, for now:
	ix.KeyFetcher = ix.BlobSource

	return ix, err
}
Example #21
0
func newKeyValueFromJSONConfig(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
	conninfo := fmt.Sprintf("user=%s dbname=%s host=%s password=%s sslmode=%s",
		cfg.RequiredString("user"),
		cfg.RequiredString("database"),
		cfg.OptionalString("host", "localhost"),
		cfg.OptionalString("password", ""),
		cfg.OptionalString("sslmode", "require"),
	)
	if err := cfg.Validate(); err != nil {
		return nil, err
	}
	db, err := sql.Open("postgres", conninfo)
	if err != nil {
		return nil, err
	}
	for _, tableSql := range SQLCreateTables() {
		if _, err := db.Exec(tableSql); err != nil {
			return nil, fmt.Errorf("error creating table with %q: %v", tableSql, err)
		}
	}
	for _, statement := range SQLDefineReplace() {
		if _, err := db.Exec(statement); err != nil {
			return nil, fmt.Errorf("error setting up replace statement with %q: %v", statement, err)
		}
	}
	r, err := db.Query(fmt.Sprintf(`SELECT replaceintometa('version', '%d')`, SchemaVersion()))
	if err != nil {
		return nil, fmt.Errorf("error setting schema version: %v", err)
	}
	r.Close()

	kv := &keyValue{
		db: db,
		KeyValue: &sqlkv.KeyValue{
			DB:              db,
			SetFunc:         altSet,
			BatchSetFunc:    altBatchSet,
			PlaceHolderFunc: replacePlaceHolders,
		},
	}
	if err := kv.ping(); err != nil {
		return nil, fmt.Errorf("PostgreSQL db unreachable: %v", err)
	}
	version, err := kv.SchemaVersion()
	if err != nil {
		return nil, fmt.Errorf("error getting schema version (need to init database?): %v", err)
	}
	if version != requiredSchemaVersion {
		if env.IsDev() {
			// Good signal that we're using the devcam server, so help out
			// the user with a more useful tip:
			return nil, fmt.Errorf("database schema version is %d; expect %d (run \"devcam server --wipe\" to wipe both your blobs and re-populate the database schema)", version, requiredSchemaVersion)
		}
		return nil, fmt.Errorf("database schema version is %d; expect %d (need to re-init/upgrade database?)",
			version, requiredSchemaVersion)
	}

	return kv, nil
}
Example #22
0
func newKeyValueFromJSONConfig(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
	host := cfg.OptionalString("host", "")
	dsn := fmt.Sprintf("%s/%s/%s",
		cfg.RequiredString("database"),
		cfg.RequiredString("user"),
		cfg.OptionalString("password", ""),
	)
	if err := cfg.Validate(); err != nil {
		return nil, err
	}
	if host != "" {
		// TODO(mpl): document that somewhere
		if !strings.Contains(host, ":") {
			host = host + ":3306"
		}
		dsn = "tcp:" + host + "*" + dsn
	}

	db, err := sql.Open("mymysql", dsn)
	if err != nil {
		return nil, err
	}
	for _, tableSql := range SQLCreateTables() {
		if _, err := db.Exec(tableSql); err != nil {
			return nil, fmt.Errorf("error creating table with %q: %v", tableSql, err)
		}
	}
	if _, err := db.Exec(fmt.Sprintf(`REPLACE INTO meta VALUES ('version', '%d')`, SchemaVersion())); err != nil {
		return nil, fmt.Errorf("error setting schema version: %v", err)
	}

	kv := &keyValue{
		db: db,
		KeyValue: &sqlkv.KeyValue{
			DB: db,
		},
	}
	if err := kv.ping(); err != nil {
		return nil, fmt.Errorf("MySQL db unreachable: %v", err)
	}
	version, err := kv.SchemaVersion()
	if err != nil {
		return nil, fmt.Errorf("error getting schema version (need to init database?): %v", err)
	}
	if version != requiredSchemaVersion {
		if version == 20 && requiredSchemaVersion == 21 {
			fmt.Fprintf(os.Stderr, fixSchema20to21)
		}
		if os.Getenv("CAMLI_DEV_CAMLI_ROOT") != "" {
			// Good signal that we're using the devcam server, so help out
			// the user with a more useful tip:
			return nil, fmt.Errorf("database schema version is %d; expect %d (run \"devcam server --wipe\" to wipe both your blobs and re-populate the database schema)", version, requiredSchemaVersion)
		}
		return nil, fmt.Errorf("database schema version is %d; expect %d (need to re-init/upgrade database?)",
			version, requiredSchemaVersion)
	}

	return kv, nil
}
Example #23
0
func newSyncFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (h http.Handler, err error) {
	from := conf.RequiredString("from")
	to := conf.RequiredString("to")
	fullSync := conf.OptionalBool("fullSyncOnStart", false)
	blockFullSync := conf.OptionalBool("blockingFullSyncOnStart", false)
	if err = conf.Validate(); err != nil {
		return
	}
	fromBs, err := ld.GetStorage(from)
	if err != nil {
		return
	}
	toBs, err := ld.GetStorage(to)
	if err != nil {
		return
	}
	fromQsc, ok := fromBs.(blobserver.StorageQueueCreator)
	if !ok {
		return nil, fmt.Errorf("Prefix %s (type %T) does not support being efficient replication source (queueing)", from, fromBs)
	}
	synch, err := createSyncHandler(from, to, fromQsc, toBs)
	if err != nil {
		return
	}

	if fullSync || blockFullSync {
		didFullSync := make(chan bool, 1)
		go func() {
			n := synch.runSync("queue", fromQsc, 0)
			log.Printf("Queue sync copied %d blobs", n)
			n = synch.runSync("full", fromBs, 0)
			log.Printf("Full sync copied %d blobs", n)
			didFullSync <- true
			synch.syncQueueLoop()
		}()
		if blockFullSync {
			log.Printf("Blocking startup, waiting for full sync from %q to %q", from, to)
			<-didFullSync
			log.Printf("Full sync complete.")
		}
	} else {
		go synch.syncQueueLoop()
	}

	rootPrefix, _, err := ld.FindHandlerByType("root")
	switch err {
	case blobserver.ErrHandlerTypeNotFound:
		// ignore; okay to not have a root handler.
	case nil:
		h, err := ld.GetHandler(rootPrefix)
		if err != nil {
			return nil, err
		}
		h.(*RootHandler).registerSyncHandler(synch)
	default:
		return nil, fmt.Errorf("Error looking for root handler: %v", err)
	}
	return synch, nil
}
Example #24
0
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (bs blobserver.Storage, err error) {
	sto := &storage{
		SimpleBlobHubPartitionMap: &blobserver.SimpleBlobHubPartitionMap{},
		index: index.NewMemoryStorage(), // TODO: temporary for development; let be configurable (mysql, etc)
	}
	agreement := config.OptionalString("I_AGREE", "")
	const wantAgreement = "that encryption support hasn't been peer-reviewed, isn't finished, and its format might change."
	if agreement != wantAgreement {
		return nil, errors.New("Use of the 'encrypt' target without the proper I_AGREE value.")
	}

	key := config.OptionalString("key", "")
	keyFile := config.OptionalString("keyFile", "")
	var keyb []byte
	switch {
	case key != "":
		keyb, err = hex.DecodeString(key)
		if err != nil || len(keyb) != 16 {
			return nil, fmt.Errorf("The 'key' parameter must be 16 bytes of 32 hex digits. (currently fixed at AES-128)")
		}
	case keyFile != "":
		// TODO: check that keyFile's unix permissions aren't too permissive.
		keyb, err = ioutil.ReadFile(keyFile)
		if err != nil {
			return nil, fmt.Errorf("Reading key file %v: %v", keyFile, err)
		}
	}
	blobStorage := config.RequiredString("blobs")
	metaStorage := config.RequiredString("meta")
	if err := config.Validate(); err != nil {
		return nil, err
	}

	sto.blobs, err = ld.GetStorage(blobStorage)
	if err != nil {
		return
	}
	sto.meta, err = ld.GetStorage(metaStorage)
	if err != nil {
		return
	}

	if keyb == nil {
		// TODO: add a way to prompt from stdin on start? or keychain support?
		return nil, errors.New("no encryption key set with 'key' or 'keyFile'")
	}

	if err := sto.setKey(keyb); err != nil {
		return nil, err
	}

	log.Printf("Reading encryption metadata...")
	if err := sto.readAllMetaBlobs(); err != nil {
		return nil, fmt.Errorf("Error scanning metadata on start-up: %v", err)
	}
	log.Printf("Read all encryption metadata.")

	return sto, nil
}
Example #25
0
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
	path := config.RequiredString("path")
	maxFileSize := config.OptionalInt("maxFileSize", 0)
	if err := config.Validate(); err != nil {
		return nil, err
	}
	return newStorage(path, int64(maxFileSize))
}
Example #26
0
// NewHandler returns a Handler that proxies requests to an app. Start() on the
// Handler starts the app.
// The apiHost must end in a slash and is the camlistored API server for the app
// process to hit.
// The appHandlerPrefix is the URL path prefix on apiHost where the app is mounted.
// It must end in a slash, and be at minimum "/".
// The conf object has the following members, related to the vars described in
// doc/app-environment.txt:
// "program", string, required. File name of the app's program executable. Either
// an absolute path, or the name of a file located in CAMLI_APP_BINDIR or in PATH.
// "backendURL", string, optional. Automatic if absent. It sets CAMLI_APP_BACKEND_URL.
// "appConfig", object, optional. Additional configuration that the app can request from Camlistore.
func NewHandler(conf jsonconfig.Obj, apiHost, appHandlerPrefix string) (*Handler, error) {
	// TODO: remove the appHandlerPrefix if/when we change where the app config JSON URL is made available.
	name := conf.RequiredString("program")
	backendURL := conf.OptionalString("backendURL", "")
	appConfig := conf.OptionalObject("appConfig")
	// TODO(mpl): add an auth token in the extra config of the dev server config,
	// that the hello app can use to setup a status handler than only responds
	// to requests with that token.
	if err := conf.Validate(); err != nil {
		return nil, err
	}

	if apiHost == "" {
		return nil, fmt.Errorf("app: could not initialize Handler for %q: Camlistore apiHost is unknown", name)
	}
	if appHandlerPrefix == "" {
		return nil, fmt.Errorf("app: could not initialize Handler for %q: empty appHandlerPrefix", name)
	}

	if backendURL == "" {
		var err error
		// If not specified in the conf, we're dynamically picking the port of the CAMLI_APP_BACKEND_URL
		// now (instead of letting the app itself do it), because we need to know it in advance in order
		// to set the app handler's proxy.
		backendURL, err = randPortBackendURL(apiHost, appHandlerPrefix)
		if err != nil {
			return nil, err
		}
	}

	username, password := auth.RandToken(20), auth.RandToken(20)
	camliAuth := username + ":" + password
	basicAuth := auth.NewBasicAuth(username, password)
	envVars := map[string]string{
		"CAMLI_API_HOST":        apiHost,
		"CAMLI_AUTH":            camliAuth,
		"CAMLI_APP_BACKEND_URL": backendURL,
	}
	if appConfig != nil {
		envVars["CAMLI_APP_CONFIG_URL"] = apiHost + strings.TrimPrefix(appHandlerPrefix, "/") + "config.json"
	}

	proxyURL, err := url.Parse(backendURL)
	if err != nil {
		return nil, fmt.Errorf("could not parse backendURL %q: %v", backendURL, err)
	}
	return &Handler{
		name:       name,
		envVars:    envVars,
		auth:       basicAuth,
		appConfig:  appConfig,
		proxy:      httputil.NewSingleHostReverseProxy(proxyURL),
		backendURL: backendURL,
	}, nil
}
Example #27
0
func newFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (blobserver.Storage, error) {
	var (
		smallPrefix = conf.RequiredString("smallBlobs")
		largePrefix = conf.RequiredString("largeBlobs")
		metaConf    = conf.RequiredObject("metaIndex")
	)
	if err := conf.Validate(); err != nil {
		return nil, err
	}
	small, err := ld.GetStorage(smallPrefix)
	if err != nil {
		return nil, fmt.Errorf("failed to load smallBlobs at %s: %v", smallPrefix, err)
	}
	large, err := ld.GetStorage(largePrefix)
	if err != nil {
		return nil, fmt.Errorf("failed to load largeBlobs at %s: %v", largePrefix, err)
	}
	largeSubber, ok := large.(subFetcherStorage)
	if !ok {
		return nil, fmt.Errorf("largeBlobs at %q of type %T doesn't support fetching sub-ranges of blobs",
			largePrefix, large)
	}
	meta, err := sorted.NewKeyValue(metaConf)
	if err != nil {
		return nil, fmt.Errorf("failed to setup blobpacked metaIndex: %v", err)
	}
	sto := &storage{
		small: small,
		large: largeSubber,
		meta:  meta,
	}
	sto.init()

	// Check for a weird state: zip files exist, but no metadata about them
	// is recorded. This is probably a corrupt state, and the user likely
	// wants to recover.
	if !sto.anyMeta() && sto.anyZipPacks() {
		log.Printf("Warning: blobpacked storage detects non-zero packed zips, but no metadata. Please re-start in recovery mode.")
		// TODO: add a recovery mode.
		// Old TODO was:
		// fail with a "known corrupt" message and refuse to
		// start unless in recovery mode (perhaps a new environment
		// var? or flag passed down?) using StreamBlobs starting at
		// "l:".  Could even do it automatically if total size is
		// small or fast enough? But that's confusing if it only
		// sometimes finishes recovery. We probably want various
		// server start-up modes anyway: "check", "recover", "garbage
		// collect", "readonly".  So might as well introduce that
		// concept now.

		// TODO: test start-up recovery mode, once it works.
	}
	return sto, nil
}
Example #28
0
func newJSONSignFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (http.Handler, error) {
	pubKeyDestPrefix := conf.OptionalString("publicKeyDest", "")

	// either a short form ("26F5ABDA") or one the longer forms.
	keyId := conf.RequiredString("keyId")

	h := &Handler{
		secretRing: conf.OptionalString("secretRing", ""),
	}
	var err error
	if err = conf.Validate(); err != nil {
		return nil, err
	}

	h.entity, err = jsonsign.EntityFromSecring(keyId, h.secretRingPath())
	if err != nil {
		return nil, err
	}

	armoredPublicKey, err := jsonsign.ArmoredPublicKey(h.entity)

	ms := new(blobref.MemoryStore)
	h.pubKeyBlobRef, err = ms.AddBlob(crypto.SHA1, armoredPublicKey)
	if err != nil {
		return nil, err
	}
	h.pubKeyFetcher = ms

	if pubKeyDestPrefix != "" {
		sto, err := ld.GetStorage(pubKeyDestPrefix)
		if err != nil {
			return nil, err
		}
		h.pubKeyDest = sto
		if sto != nil {
			if ctxReq, ok := ld.GetRequestContext(); ok {
				if w, ok := sto.(blobserver.ContextWrapper); ok {
					sto = w.WrapContext(ctxReq)
				}
			}
			err := h.uploadPublicKey(sto, armoredPublicKey)
			if err != nil {
				return nil, fmt.Errorf("Error seeding self public key in storage: %v", err)
			}
		}
	}
	h.pubKeyBlobRefServeSuffix = "camli/" + h.pubKeyBlobRef.String()
	h.pubKeyHandler = &gethandler.Handler{
		Fetcher:           ms,
		AllowGlobalAccess: true, // just public keys
	}

	return h, nil
}
Example #29
0
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
	var (
		path        = config.RequiredString("path")
		maxFileSize = config.OptionalInt("maxFileSize", 0)
		indexConf   = config.OptionalObject("metaIndex")
	)
	if err := config.Validate(); err != nil {
		return nil, err
	}
	return newStorage(path, int64(maxFileSize), indexConf)
}
Example #30
0
// ConfigFromJSON populates Config from cfg, and validates
// cfg. It returns an error if cfg fails to validate.
func ConfigFromJSON(cfg jsonconfig.Obj) (Config, error) {
	conf := Config{
		Server:   cfg.OptionalString("host", "localhost"),
		Database: cfg.RequiredString("database"),
		User:     cfg.OptionalString("user", ""),
		Password: cfg.OptionalString("password", ""),
	}
	if err := cfg.Validate(); err != nil {
		return Config{}, err
	}
	return conf, nil
}