portal/protocols/s5/s5.go

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package s5
import (
"context"
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"crypto/ed25519"
"errors"
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"fmt"
"time"
"git.lumeweb.com/LumeWeb/portal/metadata"
"git.lumeweb.com/LumeWeb/portal/storage"
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s5config "git.lumeweb.com/LumeWeb/libs5-go/config"
s5ed "git.lumeweb.com/LumeWeb/libs5-go/ed25519"
"git.lumeweb.com/LumeWeb/libs5-go/encoding"
s5fx "git.lumeweb.com/LumeWeb/libs5-go/fx"
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s5node "git.lumeweb.com/LumeWeb/libs5-go/node"
s5storage "git.lumeweb.com/LumeWeb/libs5-go/storage"
"git.lumeweb.com/LumeWeb/libs5-go/types"
"git.lumeweb.com/LumeWeb/portal/protocols/registry"
"github.com/spf13/viper"
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bolt "go.etcd.io/bbolt"
"go.uber.org/fx"
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"go.uber.org/zap"
)
var (
_ s5storage.ProviderStore = (*S5ProviderStore)(nil)
_ registry.Protocol = (*S5Protocol)(nil)
)
type S5Protocol struct {
config *viper.Viper
logger *zap.Logger
storage storage.StorageService
identity ed25519.PrivateKey
node *s5node.Node
tusHandler *TusHandler
}
type S5ProtocolParams struct {
fx.In
Config *viper.Viper
Logger *zap.Logger
Storage storage.StorageService
Identity ed25519.PrivateKey
ProviderStore *S5ProviderStore
TusHandler *TusHandler
}
type S5ProtocolResult struct {
fx.Out
Protocol registry.Protocol `group:"protocol"`
S5Protocol *S5Protocol
S5NodeConfig *s5config.NodeConfig
Db *bolt.DB
}
type S5ProviderStoreParams struct {
fx.In
Config *viper.Viper
Metadata metadata.MetadataService
Logger *zap.Logger
Tus *TusHandler
}
var ProtocolModule = fx.Module("s5_api",
fx.Provide(NewS5Protocol),
fx.Provide(NewTusHandler),
fx.Provide(NewS5ProviderStore),
fx.Replace(func(cfg *s5config.NodeConfig) *zap.Logger {
return cfg.Logger
}),
s5fx.Module,
)
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func NewS5Protocol(
params S5ProtocolParams,
) (S5ProtocolResult, error) {
proto := &S5Protocol{
config: params.Config,
logger: params.Logger,
storage: params.Storage,
identity: params.Identity,
tusHandler: params.TusHandler,
}
cfg, err := ConfigureS5Protocol(params)
if err != nil {
return S5ProtocolResult{}, err
}
return S5ProtocolResult{
Protocol: proto,
S5Protocol: proto,
S5NodeConfig: cfg,
Db: cfg.DB,
}, nil
}
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func ConfigureS5Protocol(params S5ProtocolParams) (*s5config.NodeConfig, error) {
cfg := &s5config.NodeConfig{
P2P: s5config.P2PConfig{
Network: "",
Peers: s5config.PeersConfig{Initial: []string{}},
},
KeyPair: s5ed.New(params.Identity),
DB: nil,
Logger: params.Logger.Named("s5"),
HTTP: s5config.HTTPConfig{},
}
pconfig := params.Config.Sub("protocol.s5")
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if pconfig == nil {
params.Logger.Fatal("Missing protocol.s5 Config")
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}
err := pconfig.Unmarshal(cfg)
if err != nil {
return nil, err
}
cfg.HTTP.API.Domain = fmt.Sprintf("s5.%s", params.Config.GetString("core.domain"))
if params.Config.IsSet("core.externalPort") {
cfg.HTTP.API.Port = params.Config.GetUint("core.externalPort")
} else {
cfg.HTTP.API.Port = params.Config.GetUint("core.port")
}
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dbPath := pconfig.GetString("dbPath")
if dbPath == "" {
params.Logger.Fatal("protocol.s5.dbPath is required")
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}
_, p, err := ed25519.GenerateKey(nil)
if err != nil {
params.Logger.Fatal("Failed to generate key", zap.Error(err))
}
cfg.KeyPair = s5ed.New(p)
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db, err := bolt.Open(dbPath, 0600, nil)
if err != nil {
params.Logger.Fatal("Failed to open db", zap.Error(err))
}
cfg.DB = db
return cfg, nil
}
func NewS5ProviderStore(params S5ProviderStoreParams) *S5ProviderStore {
return &S5ProviderStore{
config: params.Config,
logger: params.Logger,
tus: params.Tus,
metadata: params.Metadata,
}
}
func InitProtocol(s5 *S5Protocol, node *s5node.Node, store *S5ProviderStore) error {
return s5.Init(node, store)
}
func (s *S5Protocol) Init(args ...any) error {
if node, ok := args[0].(*s5node.Node); !ok {
s.logger.Fatal("Node is not a s5 node")
} else {
s.node = node
}
if store, ok := args[1].(*S5ProviderStore); !ok {
s.logger.Fatal("Store is not a s5 store")
} else {
s.node.Services().Storage().SetProviderStore(store)
}
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err := s.node.Init()
if err != nil {
return err
}
err = s.tusHandler.Init()
if err != nil {
return err
}
return nil
}
func (s *S5Protocol) Start(ctx context.Context) error {
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err := s.node.Start()
if err != nil {
return err
}
identity, err := s.node.NodeId().ToString()
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if err != nil {
return err
}
s.logger.Info("S5 protocol started", zap.String("identity", identity), zap.String("network", s.node.NetworkId()), zap.String("domain", s.node.Config().HTTP.API.Domain))
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return nil
}
func (s *S5Protocol) Name() string {
return "s5"
}
func (s *S5Protocol) Node() *s5node.Node {
return s.node
}
func (s *S5Protocol) Stop(ctx context.Context) error {
return nil
}
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type S5ProviderStore struct {
config *viper.Viper
logger *zap.Logger
tus *TusHandler
metadata metadata.MetadataService
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}
func (s S5ProviderStore) CanProvide(hash *encoding.Multihash, kind []types.StorageLocationType) bool {
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ctx := context.Background()
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for _, t := range kind {
switch t {
case types.StorageLocationTypeArchive, types.StorageLocationTypeFile, types.StorageLocationTypeFull:
rawHash := hash.HashBytes()
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if exists, upload := s.tus.UploadExists(ctx, rawHash); exists {
if upload.Completed {
return true
}
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}
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if _, err := s.metadata.GetUpload(ctx, rawHash); errors.Is(err, metadata.ErrNotFound) {
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return true
}
}
}
return false
}
func (s S5ProviderStore) Provide(hash *encoding.Multihash, kind []types.StorageLocationType) (s5storage.StorageLocation, error) {
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for _, t := range kind {
if !s.CanProvide(hash, []types.StorageLocationType{t}) {
continue
}
switch t {
case types.StorageLocationTypeArchive:
return s5storage.NewStorageLocation(int(types.StorageLocationTypeArchive), []string{}, calculateExpiry(24*time.Hour)), nil
case types.StorageLocationTypeFile, types.StorageLocationTypeFull:
return s5storage.NewStorageLocation(int(types.StorageLocationTypeFull), []string{generateDownloadUrl(hash, s.config, s.logger), generateProofUrl(hash, s.config, s.logger)}, calculateExpiry(24*time.Hour)), nil
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}
}
hashStr, err := hash.ToString()
if err != nil {
return nil, err
}
return nil, fmt.Errorf("could not provide hash %s for types %v", hashStr, kind)
}
func calculateExpiry(duration time.Duration) int64 {
return time.Now().Add(duration).Unix()
}
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func generateDownloadUrl(hash *encoding.Multihash, config *viper.Viper, logger *zap.Logger) string {
domain := config.GetString("core.domain")
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hashStr, err := hash.ToBase64Url()
if err != nil {
logger.Error("error encoding hash", zap.Error(err))
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}
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return fmt.Sprintf("https://s5.%s/s5/download/%s", domain, hashStr)
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}
func generateProofUrl(hash *encoding.Multihash, config *viper.Viper, logger *zap.Logger) string {
domain := config.GetString("core.domain")
hashStr, err := hash.ToBase64Url()
if err != nil {
logger.Error("error encoding hash", zap.Error(err))
}
return fmt.Sprintf("https://s5.%s/s5/download/%s.obao", domain, hashStr)
}