func SetupIpfs() (*core.IpfsNode, error) {
// Assume the user has run 'ipfs init'
r := fsrepo.At("~/.ipfs")
if err := r.Open(); err != nil {
return nil, err
}
builder := core.NewNodeBuilder().Online().SetRepo(r)
return builder.Build(context.Background())
}
// create a new Service
func NewService(name string, location string) (Service, error) {
// Basic ipfsnode setup
repo, err := fsrepo.Open(location)
if err != nil {
return Service{}, err
}
nodeBuilder := core.NewNodeBuilder().Online()
nodeBuilder.SetRepo(repo)
ctx, cancel := context.WithCancel(context.Background())
node, err := nodeBuilder.Build(ctx)
if err != nil {
return Service{}, err
}
return Service{name, node, cancel, ctx, nil, make(chan bool), false}, nil
}
func main() {
if len(os.Args) < 2 {
fmt.Println("Please give a peer ID as an argument")
return
}
target, err := peer.IDB58Decode(os.Args[1])
if err != nil {
panic(err)
}
// Basic ipfsnode setup
r := fsrepo.At("~/.ipfs")
if err := r.Open(); err != nil {
panic(err)
}
nb := core.NewNodeBuilder().Online()
nb.SetRepo(r)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
nd, err := nb.Build(ctx)
if err != nil {
panic(err)
}
fmt.Printf("I am peer %s dialing %s\n", nd.Identity, target)
con, err := corenet.Dial(nd, target, "/app/whyrusleeping")
if err != nil {
fmt.Println(err)
return
}
io.Copy(os.Stdout, con)
}
func main() {
// Basic ipfsnode setup
r, err := fsrepo.Open("~/.ipfs")
if err != nil {
panic(err)
}
nb := core.NewNodeBuilder().Online()
nb.SetRepo(r)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
nd, err := nb.Build(ctx)
if err != nil {
panic(err)
}
list, err := corenet.Listen(nd, "/app/whyrusleeping")
if err != nil {
panic(err)
}
fmt.Printf("I am peer: %s\n", nd.Identity.Pretty())
for {
con, err := list.Accept()
if err != nil {
fmt.Println(err)
return
}
defer con.Close()
fmt.Fprintln(con, "Hello! This is whyrusleepings awesome ipfs service")
fmt.Printf("Connection from: %s\n", con.Conn().RemotePeer())
}
}
},
Run: func(req cmds.Request, res cmds.Response) {
n, err := req.InvocContext().GetNode()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
progress, _, _ := req.Option(progressOptionName).Bool()
trickle, _, _ := req.Option(trickleOptionName).Bool()
wrap, _, _ := req.Option(wrapOptionName).Bool()
hash, _, _ := req.Option(onlyHashOptionName).Bool()
hidden, _, _ := req.Option(hiddenOptionName).Bool()
if hash {
nilnode, err := core.NewNodeBuilder().NilRepo().Build(n.Context())
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
n = nilnode
}
outChan := make(chan interface{}, 8)
res.SetOutput((<-chan interface{})(outChan))
// addSingleFile is a function that adds a file given as a param.
addSingleFile := func(file files.File) error {
addParams := adder{
node: n,
out: outChan,
func daemonFunc(req cmds.Request, res cmds.Response) {
// let the user know we're going.
fmt.Printf("Initializing daemon...\n")
ctx := req.Context()
go func() {
select {
case <-ctx.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.Context().ConfigRoot) {
err := initWithDefaults(os.Stdout, req.Context().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.Context().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 corebuilder
nb := core.NewNodeBuilder().Online()
nb.SetRepo(repo)
routingOption, _, err := req.Option(routingOptionKwd).String()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
if routingOption == routingOptionSupernodeKwd {
servers, err := repo.Config().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()},
})
}
nb.SetRouting(corerouting.SupernodeClient(infos...))
}
node, err := nb.Build(ctx.Context)
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 <-ctx.Context.Done():
log.Info("Gracefully shut down daemon")
default:
}
}()
req.Context().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
}
}
// 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
}
}
}