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
}
// 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
}
func newKeyValueFromConfig(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
file := cfg.RequiredString("file")
if err := cfg.Validate(); err != nil {
return nil, err
}
return NewKeyValue(file)
}
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
}
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
}
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
}
func thumbnailerFromConfig(config jsonconfig.Obj) Thumbnailer {
command := config.OptionalList("command")
if len(command) < 1 {
return DefaultThumbnailer
}
return &configThumbnailer{prog: command[0], args: command[1:]}
}
// printConfigChangeHelp checks if conf contains obsolete keys,
// and prints additional help in this case.
func printConfigChangeHelp(conf jsonconfig.Obj) {
// rename maps from old key names to the new ones.
// If there is no new one, the value is the empty string.
rename := map[string]string{
"keyId": "identity",
"publicKeyBlobref": "",
"selfPubKeyDir": "",
"secretRing": "identitySecretRing",
}
oldConfig := false
configChangedMsg := fmt.Sprintf("The client configuration file (%s) keys have changed.\n", osutil.UserClientConfigPath())
for _, unknown := range conf.UnknownKeys() {
for k, v := range rename {
if unknown == k {
if v != "" {
configChangedMsg += fmt.Sprintf("%q should be renamed %q.\n", k, v)
} else {
configChangedMsg += fmt.Sprintf("%q should be removed.\n", k)
}
oldConfig = true
break
}
}
}
if oldConfig {
configChangedMsg += "Please see http://camlistore.org/docs/client-config, or use camput init to recreate a default one."
log.Print(configChangedMsg)
}
}
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
client := &s3.Client{
Auth: &s3.Auth{
AccessKey: config.RequiredString("aws_access_key"),
SecretAccessKey: config.RequiredString("aws_secret_access_key"),
},
HttpClient: http.DefaultClient,
}
sto := &s3Storage{
SimpleBlobHubPartitionMap: &blobserver.SimpleBlobHubPartitionMap{},
s3Client: client,
bucket: config.RequiredString("bucket"),
}
skipStartupCheck := config.OptionalBool("skipStartupCheck", false)
if err := config.Validate(); err != nil {
return nil, err
}
if !skipStartupCheck {
// TODO: skip this check if a file
// ~/.camli/.configcheck/sha1-("IS GOOD: s3: sha1(access key +
// secret key)") exists and has recent time?
if _, err := client.Buckets(); err != nil {
return nil, fmt.Errorf("Failed to get bucket list from S3: %v", err)
}
}
return sto, nil
}
func newRootFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (h http.Handler, err error) {
u, err := user.Current()
if err != nil {
return
}
root := &RootHandler{
BlobRoot: conf.OptionalString("blobRoot", ""),
SearchRoot: conf.OptionalString("searchRoot", ""),
OwnerName: conf.OptionalString("ownerName", u.Name),
}
root.Stealth = conf.OptionalBool("stealth", false)
if err = conf.Validate(); err != nil {
return
}
if root.BlobRoot != "" {
bs, err := ld.GetStorage(root.BlobRoot)
if err != nil {
return nil, fmt.Errorf("Root handler's blobRoot of %q error: %v", root.BlobRoot, err)
}
root.Storage = bs
}
if root.SearchRoot != "" {
h, _ := ld.GetHandler(root.SearchRoot)
root.Search = h.(*search.Handler)
}
return root, nil
}
func newFromConfig(_ blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
client := &s3.Client{
Auth: &s3.Auth{
AccessKey: config.RequiredString("aws_access_key"),
SecretAccessKey: config.RequiredString("aws_secret_access_key"),
},
HttpClient: http.DefaultClient,
}
sto := &s3Storage{
SimpleBlobHubPartitionMap: &blobserver.SimpleBlobHubPartitionMap{},
s3Client: client,
bucket: config.RequiredString("bucket"),
}
skipStartupCheck := config.OptionalBool("skipStartupCheck", false)
if err := config.Validate(); err != nil {
return nil, err
}
if !skipStartupCheck {
// TODO: skip this check if a file
// ~/.camli/.configcheck/sha1-("IS GOOD: s3: sha1(access key +
// secret key)") exists and has recent time?
buckets, err := client.Buckets()
if err != nil {
return nil, fmt.Errorf("Failed to get bucket list from S3: %v", err)
}
haveBucket := make(map[string]bool)
for _, b := range buckets {
haveBucket[b.Name] = true
}
if !haveBucket[sto.bucket] {
return nil, fmt.Errorf("S3 bucket %q doesn't exist. Create it first at https://console.aws.amazon.com/s3/home")
}
}
return sto, nil
}
// convertToMultiServers takes an old style single-server client configuration and maps it to new a multi-servers configuration that is returned.
func convertToMultiServers(conf jsonconfig.Obj) (jsonconfig.Obj, error) {
server := conf.OptionalString("server", "")
if server == "" {
return nil, errors.New("Could not convert config to multi-servers style: no \"server\" key found.")
}
newConf := jsonconfig.Obj{
"servers": map[string]interface{}{
server: map[string]interface{}{
"auth": conf.OptionalString("auth", ""),
"default": true,
"server": server,
},
},
"identity": conf.OptionalString("identity", ""),
"identitySecretRing": conf.OptionalString("identitySecretRing", osutil.IdentitySecretRing()),
}
if ignoredFiles := conf.OptionalList("ignoredFiles"); ignoredFiles != nil {
var list []interface{}
for _, v := range ignoredFiles {
list = append(list, v)
}
newConf["ignoredFiles"] = list
}
return newConf, nil
}
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
}
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)
}
// 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
}
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
}
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
}
// detectConfigChange returns an informative error if conf contains obsolete keys.
func detectConfigChange(conf jsonconfig.Obj) error {
oldHTTPSKey, oldHTTPSCert := conf.OptionalString("HTTPSKeyFile", ""), conf.OptionalString("HTTPSCertFile", "")
if oldHTTPSKey != "" || oldHTTPSCert != "" {
return fmt.Errorf("Config keys %q and %q have respectively been renamed to %q and %q, please fix your server config.",
"HTTPSKeyFile", "HTTPSCertFile", "httpsKey", "httpsCert")
}
return nil
}
func newStatusFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (h http.Handler, err error) {
if err := conf.Validate(); err != nil {
return nil, err
}
return &StatusHandler{
prefix: ld.MyPrefix(),
handlerFinder: ld,
}, nil
}
func indexFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err os.Error) {
sto := &appengineIndex{}
ns := config.OptionalString("namespace", "")
if err := config.Validate(); err != nil {
return nil, err
}
sto.namespace, err = sanitizeNamespace(ns)
if err != nil {
return nil, err
}
return sto, nil
}
// 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
}
func newRootFromConfig(ld blobserver.Loader, conf jsonconfig.Obj) (h http.Handler, err error) {
root := &RootHandler{}
root.Stealth = conf.OptionalBool("stealth", false)
if err = conf.Validate(); err != nil {
return
}
if _, h, err := ld.FindHandlerByType("ui"); err == nil {
root.ui = h.(*UIHandler)
}
return root, nil
}
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err error) {
sto := &appengineStorage{
namespace: config.OptionalString("namespace", ""),
}
if err := config.Validate(); err != nil {
return nil, err
}
sto.namespace, err = sanitizeNamespace(sto.namespace)
if err != nil {
return nil, err
}
return sto, nil
}
func newKeyValueFromConfig(cfg jsonconfig.Obj) (sorted.KeyValue, error) {
if !compiled {
return nil, ErrNotCompiled
}
file := cfg.RequiredString("file")
if err := cfg.Validate(); err != nil {
return nil, err
}
fi, err := os.Stat(file)
if os.IsNotExist(err) || (err == nil && fi.Size() == 0) {
if err := initDB(file); err != nil {
return nil, fmt.Errorf("could not initialize sqlite DB at %s: %v", file, err)
}
}
db, err := sql.Open("sqlite3", file)
if err != nil {
return nil, err
}
kv := &keyValue{
file: file,
db: db,
KeyValue: &sqlkv.KeyValue{
DB: db,
Serial: true,
},
}
version, err := kv.SchemaVersion()
if err != nil {
return nil, fmt.Errorf("error getting schema version (need to init database with 'camtool dbinit %s'?): %v", file, err)
}
if err := kv.ping(); err != nil {
return nil, 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
}
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
}
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
}
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
}
func newFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (storage blobserver.Storage, err os.Error) {
sto := &appengineStorage{
SimpleBlobHubPartitionMap: &blobserver.SimpleBlobHubPartitionMap{},
}
sto.namespace = config.OptionalString("namespace", "")
if err := config.Validate(); err != nil {
return nil, err
}
sto.namespace, err = sanitizeNamespace(sto.namespace)
if err != nil {
return nil, err
}
return sto, nil
}
func newFromConfig(cfg jsonconfig.Obj) (importer.Importer, error) {
// TODO(aa): miniToken config is temporary. There should be UI to auth using oauth.
miniToken := cfg.RequiredString("miniToken")
if err := cfg.Validate(); err != nil {
return nil, err
}
im := &imp{}
if miniToken != "" {
if err := im.authenticate(http.DefaultClient, miniToken); err != nil {
return nil, err
}
}
return im, nil
}
func newMemoryIndexFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blobserver.Storage, error) {
blobPrefix := config.RequiredString("blobSource")
if err := config.Validate(); err != nil {
return nil, err
}
sto, err := ld.GetStorage(blobPrefix)
if err != nil {
return nil, err
}
ix := NewMemoryIndex()
ix.InitBlobSource(sto)
return ix, err
}