func (i *cmdInvocation) constructNodeFunc(ctx context.Context) func() (*core.IpfsNode, error) {
return func() (*core.IpfsNode, error) {
if i.req == nil {
return nil, errors.New("constructing node without a request")
}
cmdctx := i.req.InvocContext()
if cmdctx == nil {
return nil, errors.New("constructing node without a request context")
}
r, err := fsrepo.Open(i.req.InvocContext().ConfigRoot)
if err != nil { // repo is owned by the node
return nil, err
}
// ok everything is good. set it on the invocation (for ownership)
// and return it.
n, err := core.NewNode(ctx, &core.BuildCfg{
Online: cmdctx.Online,
Repo: r,
})
if err != nil {
return nil, err
}
i.node = n
return i.node, nil
}
}
func addDefaultAssets(out io.Writer, repoRoot string) error {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, err := fsrepo.Open(repoRoot)
if err != nil { // NB: repo is owned by the node
return err
}
nd, err := core.NewNode(ctx, &core.BuildCfg{Repo: r})
if err != nil {
return err
}
defer nd.Close()
dkey, err := assets.SeedInitDocs(nd)
if err != nil {
return fmt.Errorf("init: seeding init docs failed: %s", err)
}
log.Debugf("init: seeded init docs %s", dkey)
if _, err = fmt.Fprintf(out, "to get started, enter:\n"); err != nil {
return err
}
_, err = fmt.Fprintf(out, "\n\tipfs cat /ipfs/%s/readme\n\n", dkey)
return err
}
// TODO share func
func writeConfig(path string, cfg *config.Config) error {
// NB: This needs to run on the daemon.
r, err := fsrepo.Open(path)
if err != nil {
return err
}
defer r.Close()
return r.SetConfig(cfg)
}
func initializeIpnsKeyspace(repoRoot string) error {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, err := fsrepo.Open(repoRoot)
if err != nil { // NB: repo is owned by the node
return err
}
nd, err := core.NewNode(ctx, &core.BuildCfg{Repo: r})
if err != nil {
return err
}
defer nd.Close()
err = nd.SetupOfflineRouting()
if err != nil {
return err
}
return namesys.InitializeKeyspace(ctx, nd.DAG, nd.Namesys, nd.Pinning, nd.PrivateKey)
}
Arguments: []cmds.Argument{
cmds.StringArg("peer", false, true, peerOptionDesc).EnableStdin(),
},
Options: []cmds.Option{
cmds.BoolOption("default", "add default bootstrap nodes"),
},
Run: func(req cmds.Request, res cmds.Response) {
inputPeers, err := config.ParseBootstrapPeers(req.Arguments())
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
r, err := fsrepo.Open(req.InvocContext().ConfigRoot)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
defer r.Close()
cfg, err := r.Config()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
deflt, _, err := req.Option("default").Bool()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
func run() error {
servers := config.DefaultSNRServers
fmt.Println("using gcr remotes:")
for _, p := range servers {
fmt.Println("\t", p)
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
cwd, err := os.Getwd()
if err != nil {
return err
}
repoPath := gopath.Join(cwd, config.DefaultPathName)
if err := ensureRepoInitialized(repoPath); err != nil {
}
repo, err := fsrepo.Open(repoPath)
if err != nil { // owned by node
return err
}
cfg, err := repo.Config()
if err != nil {
return err
}
cfg.Bootstrap = servers
if err := repo.SetConfig(cfg); err != nil {
return err
}
var addrs []ipfsaddr.IPFSAddr
for _, info := range servers {
addr, err := ipfsaddr.ParseString(info)
if err != nil {
return err
}
addrs = append(addrs, addr)
}
var infos []peer.PeerInfo
for _, addr := range addrs {
infos = append(infos, peer.PeerInfo{
ID: addr.ID(),
Addrs: []ma.Multiaddr{addr.Transport()},
})
}
node, err := core.NewNode(ctx, &core.BuildCfg{
Online: true,
Repo: repo,
Routing: corerouting.SupernodeClient(infos...),
})
if err != nil {
return err
}
defer node.Close()
opts := []corehttp.ServeOption{
corehttp.CommandsOption(cmdCtx(node, repoPath)),
corehttp.GatewayOption(false),
}
if *cat {
if err := runFileCattingWorker(ctx, node); err != nil {
return err
}
} else {
if err := runFileAddingWorker(node); err != nil {
return err
}
}
return corehttp.ListenAndServe(node, cfg.Addresses.API, opts...)
}
func daemonFunc(req cmds.Request, res cmds.Response) {
// let the user know we're going.
fmt.Printf("Initializing daemon...\n")
ctx := req.InvocContext()
go func() {
select {
case <-req.Context().Done():
fmt.Println("Received interrupt signal, shutting down...")
}
}()
// check transport encryption flag.
unencrypted, _, _ := req.Option(unencryptTransportKwd).Bool()
if unencrypted {
log.Warningf(`Running with --%s: All connections are UNENCRYPTED.
You will not be able to connect to regular encrypted networks.`, unencryptTransportKwd)
conn.EncryptConnections = false
}
// first, whether user has provided the initialization flag. we may be
// running in an uninitialized state.
initialize, _, err := req.Option(initOptionKwd).Bool()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
if initialize {
// now, FileExists is our best method of detecting whether IPFS is
// configured. Consider moving this into a config helper method
// `IsInitialized` where the quality of the signal can be improved over
// time, and many call-sites can benefit.
if !util.FileExists(req.InvocContext().ConfigRoot) {
err := initWithDefaults(os.Stdout, req.InvocContext().ConfigRoot)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
}
}
// acquire the repo lock _before_ constructing a node. we need to make
// sure we are permitted to access the resources (datastore, etc.)
repo, err := fsrepo.Open(req.InvocContext().ConfigRoot)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
cfg, err := ctx.GetConfig()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
// Start assembling node config
ncfg := &core.BuildCfg{
Online: true,
Repo: repo,
}
routingOption, _, err := req.Option(routingOptionKwd).String()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
if routingOption == routingOptionSupernodeKwd {
servers, err := cfg.SupernodeRouting.ServerIPFSAddrs()
if err != nil {
res.SetError(err, cmds.ErrNormal)
repo.Close() // because ownership hasn't been transferred to the node
return
}
var infos []peer.PeerInfo
for _, addr := range servers {
infos = append(infos, peer.PeerInfo{
ID: addr.ID(),
Addrs: []ma.Multiaddr{addr.Transport()},
})
}
ncfg.Routing = corerouting.SupernodeClient(infos...)
}
node, err := core.NewNode(req.Context(), ncfg)
if err != nil {
log.Error("error from node construction: ", err)
res.SetError(err, cmds.ErrNormal)
return
}
printSwarmAddrs(node)
defer func() {
// We wait for the node to close first, as the node has children
// that it will wait for before closing, such as the API server.
node.Close()
select {
case <-req.Context().Done():
log.Info("Gracefully shut down daemon")
default:
}
}()
req.InvocContext().ConstructNode = func() (*core.IpfsNode, error) {
return node, nil
}
// construct api endpoint - every time
err, apiErrc := serveHTTPApi(req)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
// construct http gateway - if it is set in the config
var gwErrc <-chan error
if len(cfg.Addresses.Gateway) > 0 {
var err error
err, gwErrc = serveHTTPGateway(req)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
}
// construct fuse mountpoints - if the user provided the --mount flag
mount, _, err := req.Option(mountKwd).Bool()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
if mount {
if err := mountFuse(req); err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
}
fmt.Printf("Daemon is ready\n")
// collect long-running errors and block for shutdown
// TODO(cryptix): our fuse currently doesnt follow this pattern for graceful shutdown
for err := range merge(apiErrc, gwErrc) {
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
}
}
// CliCheckForUpdates is the automatic update check from the commandline.
func CliCheckForUpdates(cfg *config.Config, repoPath string) error {
// if config says not to, don't check for updates
if !cfg.Version.ShouldCheckForUpdate() {
log.Info("update check skipped.")
return nil
}
log.Info("checking for update")
u, err := CheckForUpdate()
// if there is no update available, record it, and exit. NB: only record
// if we checked successfully.
if err == ErrNoUpdateAvailable {
log.Infof("No update available, checked on %s", time.Now())
r, err := fsrepo.Open(repoPath)
if err != nil {
return err
}
if err := recordUpdateCheck(cfg); err != nil {
return err
}
// NB: r's Config may be newer than cfg. This overwrites regardless.
r.SetConfig(cfg)
if err := r.Close(); err != nil {
return err
}
return nil
}
// if another, unexpected error occurred, note it.
if err != nil {
log.Debugf("Error while checking for update: %v", err)
return nil
}
// there is an update available
// if we autoupdate
if cfg.Version.AutoUpdate != config.AutoUpdateNever {
// and we should auto update
if ShouldAutoUpdate(cfg.Version.AutoUpdate, u.Version) {
log.Infof("Applying update %s", u.Version)
if err = Apply(u); err != nil {
log.Debug(err)
return nil
}
// BUG(cryptix): no good way to restart yet. - tracking https://github.com/inconshreveable/go-update/issues/5
fmt.Printf("update %v applied. please restart.\n", u.Version)
os.Exit(0)
}
}
// autoupdate did not exit, so regular notices.
switch cfg.Version.Check {
case config.CheckError:
return fmt.Errorf(errShouldUpdate, Version, u.Version)
case config.CheckWarn:
// print the warning
fmt.Printf("New version available: %s\n", u.Version)
default: // ignore
}
return nil
}
func run(ipfsPath, watchPath string) error {
proc := process.WithParent(process.Background())
log.Printf("running IPFSWatch on '%s' using repo at '%s'...", watchPath, ipfsPath)
ipfsPath, err := homedir.Expand(ipfsPath)
if err != nil {
return err
}
watcher, err := fsnotify.NewWatcher()
if err != nil {
return err
}
defer watcher.Close()
if err := addTree(watcher, watchPath); err != nil {
return err
}
r, err := fsrepo.Open(ipfsPath)
if err != nil {
// TODO handle case: daemon running
// TODO handle case: repo doesn't exist or isn't initialized
return err
}
node, err := core.NewNode(context.Background(), &core.BuildCfg{
Online: true,
Repo: r,
})
if err != nil {
return err
}
defer node.Close()
if *http {
addr := "/ip4/127.0.0.1/tcp/5001"
var opts = []corehttp.ServeOption{
corehttp.GatewayOption(true),
corehttp.WebUIOption,
corehttp.CommandsOption(cmdCtx(node, ipfsPath)),
}
proc.Go(func(p process.Process) {
if err := corehttp.ListenAndServe(node, addr, opts...); err != nil {
return
}
})
}
interrupts := make(chan os.Signal)
signal.Notify(interrupts, os.Interrupt, os.Kill)
for {
select {
case <-interrupts:
return nil
case e := <-watcher.Events:
log.Printf("received event: %s", e)
isDir, err := IsDirectory(e.Name)
if err != nil {
continue
}
switch e.Op {
case fsnotify.Remove:
if isDir {
if err := watcher.Remove(e.Name); err != nil {
return err
}
}
default:
// all events except for Remove result in an IPFS.Add, but only
// directory creation triggers a new watch
switch e.Op {
case fsnotify.Create:
if isDir {
addTree(watcher, e.Name)
}
}
proc.Go(func(p process.Process) {
file, err := os.Open(e.Name)
if err != nil {
log.Println(err)
}
defer file.Close()
k, err := coreunix.Add(node, file)
if err != nil {
log.Println(err)
}
log.Printf("added %s... key: %s", e.Name, k)
})
}
case err := <-watcher.Errors:
log.Println(err)
}
}
return nil
}
