Gabe Kangas
5 years ago
9 changed files with 167 additions and 306 deletions
@ -1,287 +0,0 @@
@@ -1,287 +0,0 @@
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package main |
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import ( |
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"context" |
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"fmt" |
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"io/ioutil" |
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"os" |
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"path/filepath" |
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"strings" |
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"sync" |
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log "github.com/sirupsen/logrus" |
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config "github.com/ipfs/go-ipfs-config" |
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files "github.com/ipfs/go-ipfs-files" |
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icore "github.com/ipfs/interface-go-ipfs-core" |
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"github.com/ipfs/interface-go-ipfs-core/options" |
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"github.com/ipfs/interface-go-ipfs-core/path" |
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peer "github.com/libp2p/go-libp2p-peer" |
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peerstore "github.com/libp2p/go-libp2p-peerstore" |
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ma "github.com/multiformats/go-multiaddr" |
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"github.com/ipfs/go-ipfs/core" |
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"github.com/ipfs/go-ipfs/core/coreapi" |
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"github.com/ipfs/go-ipfs/core/corehttp" |
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"github.com/ipfs/go-ipfs/core/node/libp2p" |
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"github.com/ipfs/go-ipfs/plugin/loader" |
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"github.com/ipfs/go-ipfs/repo/fsrepo" |
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) |
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type IPFSStorage struct { |
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ipfs *icore.CoreAPI |
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node *core.IpfsNode |
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ctx context.Context |
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directoryHash string |
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gateway string |
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} |
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func (s *IPFSStorage) Setup(config Config) { |
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s.gateway = config.IPFS.Gateway |
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s.ctx = context.Background() |
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ipfsInstance, node, _ := s.createIPFSInstance() |
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s.ipfs = ipfsInstance |
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s.node = node |
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s.createIPFSDirectory("./hls") |
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} |
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func (s *IPFSStorage) Save(filePath string) string { |
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someFile, err := getUnixfsNode(filePath) |
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defer someFile.Close() |
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if err != nil { |
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panic(fmt.Errorf("Could not get File: %s", err)) |
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} |
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opts := []options.UnixfsAddOption{ |
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options.Unixfs.Pin(false), |
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// options.Unixfs.CidVersion(1),
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// options.Unixfs.RawLeaves(false),
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// options.Unixfs.Nocopy(false),
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} |
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cidFile, err := (*s.ipfs).Unixfs().Add(s.ctx, someFile, opts...) |
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if err != nil { |
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panic(fmt.Errorf("Could not add File: %s", err)) |
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} |
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// fmt.Printf("Added file to IPFS with CID %s\n", cidFile.String())
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newHash := s.addFileToDirectory(cidFile, filepath.Base(filePath)) |
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return newHash |
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} |
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func (s *IPFSStorage) GenerateRemotePlaylist(playlist string, segments map[string]string) string { |
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for local, remote := range segments { |
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playlist = strings.ReplaceAll(playlist, local, s.gateway+remote) |
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} |
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return playlist |
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} |
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func setupPlugins(externalPluginsPath string) error { |
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// Load any external plugins if available on externalPluginsPath
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plugins, err := loader.NewPluginLoader(filepath.Join(externalPluginsPath, "plugins")) |
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if err != nil { |
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return fmt.Errorf("error loading plugins: %s", err) |
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} |
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// Load preloaded and external plugins
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if err := plugins.Initialize(); err != nil { |
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return fmt.Errorf("error initializing plugins: %s", err) |
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} |
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if err := plugins.Inject(); err != nil { |
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return fmt.Errorf("error initializing plugins: %s", err) |
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} |
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return nil |
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} |
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// Creates an IPFS node and returns its coreAPI
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func createNode(ctx context.Context, repoPath string) (icore.CoreAPI, *core.IpfsNode, error) { |
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// Open the repo
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repo, err := fsrepo.Open(repoPath) |
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verifyError(err) |
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if err != nil { |
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return nil, nil, err |
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} |
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// Construct the node
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nodeOptions := &core.BuildCfg{ |
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Online: true, |
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Routing: libp2p.DHTOption, // This option sets the node to be a full DHT node (both fetching and storing DHT Records)
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// Routing: libp2p.DHTClientOption, // This option sets the node to be a client DHT node (only fetching records)
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Repo: repo, |
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} |
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node, err := core.NewNode(ctx, nodeOptions) |
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node.IsDaemon = true |
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if err != nil { |
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return nil, nil, err |
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} |
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// Attach the Core API to the constructed node
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coreAPI, err := coreapi.NewCoreAPI(node) |
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if err != nil { |
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return nil, nil, err |
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} |
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return coreAPI, node, nil |
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} |
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func createTempRepo(ctx context.Context) (string, error) { |
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repoPath, err := ioutil.TempDir("", "ipfs-shell") |
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if err != nil { |
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return "", fmt.Errorf("failed to get temp dir: %s", err) |
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} |
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// Create a config with default options and a 2048 bit key
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cfg, err := config.Init(ioutil.Discard, 2048) |
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if err != nil { |
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return "", err |
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} |
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// Create the repo with the config
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err = fsrepo.Init(repoPath, cfg) |
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if err != nil { |
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return "", fmt.Errorf("failed to init ephemeral node: %s", err) |
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} |
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return repoPath, nil |
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} |
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// Spawns a node to be used just for this run (i.e. creates a tmp repo)
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func spawnEphemeral(ctx context.Context) (icore.CoreAPI, *core.IpfsNode, error) { |
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if err := setupPlugins(""); err != nil { |
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return nil, nil, err |
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} |
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// Create a Temporary Repo
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repoPath, err := createTempRepo(ctx) |
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if err != nil { |
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return nil, nil, fmt.Errorf("failed to create temp repo: %s", err) |
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} |
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// Spawning an ephemeral IPFS node
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coreAPI, node, err := createNode(ctx, repoPath) |
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return coreAPI, node, err |
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} |
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func connectToPeers(ctx context.Context, ipfs icore.CoreAPI, peers []string) error { |
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var wg sync.WaitGroup |
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peerInfos := make(map[peer.ID]*peerstore.PeerInfo, len(peers)) |
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for _, addrStr := range peers { |
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addr, err := ma.NewMultiaddr(addrStr) |
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if err != nil { |
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return err |
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} |
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pii, err := peerstore.InfoFromP2pAddr(addr) |
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if err != nil { |
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return err |
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} |
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pi, ok := peerInfos[pii.ID] |
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if !ok { |
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pi = &peerstore.PeerInfo{ID: pii.ID} |
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peerInfos[pi.ID] = pi |
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} |
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pi.Addrs = append(pi.Addrs, pii.Addrs...) |
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} |
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wg.Add(len(peerInfos)) |
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for _, peerInfo := range peerInfos { |
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go func(peerInfo *peerstore.PeerInfo) { |
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defer wg.Done() |
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err := ipfs.Swarm().Connect(ctx, *peerInfo) |
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if err != nil { |
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log.Printf("failed to connect to %s: %s", peerInfo.ID, err) |
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} |
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}(peerInfo) |
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} |
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wg.Wait() |
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return nil |
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} |
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func getUnixfsNode(path string) (files.Node, error) { |
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st, err := os.Stat(path) |
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if err != nil { |
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return nil, err |
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} |
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f, err := files.NewSerialFile(path, false, st) |
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if err != nil { |
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return nil, err |
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} |
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return f, nil |
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} |
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func (s *IPFSStorage) addFileToDirectory(originalFileHashToModifyPath path.Path, filename string) string { |
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// fmt.Println("directoryToAddTo: "+s.directoryHash, "filename: "+filename, "originalFileHashToModifyPath: "+originalFileHashToModifyPath.String())
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directoryToAddToPath := path.New(s.directoryHash) |
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newDirectoryHash, err := (*s.ipfs).Object().AddLink(s.ctx, directoryToAddToPath, filename, originalFileHashToModifyPath) |
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verifyError(err) |
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return newDirectoryHash.String() + "/" + filename |
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} |
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func (s *IPFSStorage) createIPFSInstance() (*icore.CoreAPI, *core.IpfsNode, error) { |
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// Spawn a node using a temporary path, creating a temporary repo for the run
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api, node, error := spawnEphemeral(s.ctx) |
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// api, node, error := spawnDefault(ctx)
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return &api, node, error |
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} |
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func (s *IPFSStorage) startIPFSNode() { //} icore.CoreAPI {
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defer log.Println("IPFS node exited") |
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log.Println("IPFS node is running") |
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bootstrapNodes := []string{ |
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// IPFS Bootstrapper nodes.
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"/dnsaddr/bootstrap.libp2p.io/p2p/QmNnooDu7bfjPFoTZYxMNLWUQJyrVwtbZg5gBMjTezGAJN", |
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"/dnsaddr/bootstrap.libp2p.io/p2p/QmQCU2EcMqAqQPR2i9bChDtGNJchTbq5TbXJJ16u19uLTa", |
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"/dnsaddr/bootstrap.libp2p.io/p2p/QmbLHAnMoJPWSCR5Zhtx6BHJX9KiKNN6tpvbUcqanj75Nb", |
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"/dnsaddr/bootstrap.libp2p.io/p2p/QmcZf59bWwK5XFi76CZX8cbJ4BhTzzA3gU1ZjYZcYW3dwt", |
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// IPFS Cluster Pinning nodes
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"/ip4/138.201.67.219/tcp/4001/p2p/QmUd6zHcbkbcs7SMxwLs48qZVX3vpcM8errYS7xEczwRMA", |
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"/ip4/104.131.131.82/tcp/4001/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ", // mars.i.ipfs.io
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"/ip4/104.131.131.82/udp/4001/quic/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ", // mars.i.ipfs.io
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// You can add more nodes here, for example, another IPFS node you might have running locally, mine was:
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// "/ip4/127.0.0.1/tcp/4010/p2p/QmZp2fhDLxjYue2RiUvLwT9MWdnbDxam32qYFnGmxZDh5L",
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// "/ip4/127.0.0.1/udp/4010/quic/p2p/QmZp2fhDLxjYue2RiUvLwT9MWdnbDxam32qYFnGmxZDh5L",
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} |
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go connectToPeers(s.ctx, *s.ipfs, bootstrapNodes) |
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addr := "/ip4/127.0.0.1/tcp/5001" |
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var opts = []corehttp.ServeOption{ |
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corehttp.GatewayOption(true, "/ipfs", "/ipns"), |
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} |
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if err := corehttp.ListenAndServe(s.node, addr, opts...); err != nil { |
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return |
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} |
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} |
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func (s *IPFSStorage) createIPFSDirectory(directoryName string) { |
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directory, err := getUnixfsNode(directoryName) |
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verifyError(err) |
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defer directory.Close() |
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newlyCreatedDirectoryHash, err := (*s.ipfs).Unixfs().Add(s.ctx, directory) |
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verifyError(err) |
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s.directoryHash = newlyCreatedDirectoryHash.String() |
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} |
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@ -0,0 +1,115 @@
@@ -0,0 +1,115 @@
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package main |
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import ( |
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"bufio" |
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"fmt" |
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"net/url" |
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"os" |
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"path" |
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"strings" |
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log "github.com/sirupsen/logrus" |
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"github.com/aws/aws-sdk-go/aws" |
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"github.com/aws/aws-sdk-go/aws/credentials" |
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"github.com/aws/aws-sdk-go/aws/session" |
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"github.com/aws/aws-sdk-go/service/s3/s3manager" |
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) |
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type S3Storage struct { |
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sess *session.Session |
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host string |
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s3Region string |
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s3Bucket string |
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s3AccessKey string |
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s3Secret string |
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} |
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func (s *S3Storage) Setup(configuration Config) { |
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log.Println("Setting up S3 for external storage of video...") |
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s.s3Region = configuration.S3.Region |
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s.s3Bucket = configuration.S3.Bucket |
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s.s3AccessKey = configuration.S3.AccessKey |
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s.s3Secret = configuration.S3.Secret |
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s.sess = s.connectAWS() |
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} |
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func (s *S3Storage) Save(filePath string) string { |
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// fmt.Println("Saving", filePath)
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file, err := os.Open(filePath) // For read access.
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if err != nil { |
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log.Fatal(err) |
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} |
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uploader := s3manager.NewUploader(s.sess) |
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response, err := uploader.Upload(&s3manager.UploadInput{ |
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Bucket: aws.String(s.s3Bucket), // Bucket to be used
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Key: aws.String(filePath), // Name of the file to be saved
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Body: file, // File
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}) |
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if err != nil { |
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panic(err) |
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} |
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if s.host == "" { |
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// Take note of the root host location so we can regenerate full
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// URLs to these files later when building the playlist in GenerateRemotePlaylist.
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url, err := url.Parse(response.Location) |
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if err != nil { |
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fmt.Println(err) |
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} |
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pathComponents := strings.Split(url.Path, "/") |
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pathComponents[len(pathComponents)-1] = "" |
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s.host = fmt.Sprintf("%s://%s/%s", url.Scheme, url.Host, strings.Join(pathComponents, "/")) |
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} |
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// fmt.Println("Uploaded", filePath, "to", response.Location)
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return filePath |
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} |
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func (s *S3Storage) GenerateRemotePlaylist(playlist string, segments map[string]string) string { |
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var newPlaylist = "" |
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scanner := bufio.NewScanner(strings.NewReader(playlist)) |
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for scanner.Scan() { |
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line := scanner.Text() |
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if line[0:1] != "#" { |
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line = path.Join(s.host, line) |
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} |
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newPlaylist = newPlaylist + line + "\n" |
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} |
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// fmt.Println(newPlaylist)
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return newPlaylist |
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} |
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func (s S3Storage) connectAWS() *session.Session { |
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creds := credentials.NewStaticCredentials(s.s3AccessKey, s.s3Secret, "") |
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_, err := creds.Get() |
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if err != nil { |
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panic(err) |
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} |
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sess, err := session.NewSession( |
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&aws.Config{ |
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Region: aws.String(s.s3Region), |
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Credentials: creds, |
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}, |
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) |
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if err != nil { |
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panic(err) |
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} |
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return sess |
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} |
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