// commandShouldRunOnDaemon determines, from commmand details, whether a
// command ought to be executed on an IPFS daemon.
//
// It returns a client if the command should be executed on a daemon and nil if
// it should be executed on a client. It returns an error if the command must
// NOT be executed on either.
func commandShouldRunOnDaemon(details cmdDetails, req cmds.Request, root *cmds.Command) (cmdsHttp.Client, error) {
path := req.Path()
// root command.
if len(path) < 1 {
return nil, nil
}
if details.cannotRunOnClient && details.cannotRunOnDaemon {
return nil, fmt.Errorf("command disabled: %s", path[0])
}
if details.doesNotUseRepo && details.canRunOnClient() {
return nil, nil
}
// at this point need to know whether api is running. we defer
// to this point so that we dont check unnecessarily
// did user specify an api to use for this command?
apiAddrStr, _, err := req.Option(coreCmds.ApiOption).String()
if err != nil {
return nil, err
}
client, err := getApiClient(req.InvocContext().ConfigRoot, apiAddrStr)
if err == repo.ErrApiNotRunning {
if apiAddrStr != "" && req.Command() != daemonCmd {
// if user SPECIFIED an api, and this cmd is not daemon
// we MUST use it. so error out.
return nil, err
}
// ok for api not to be running
} else if err != nil { // some other api error
return nil, err
}
if client != nil { // daemon is running
if details.cannotRunOnDaemon {
e := "cannot use API with this command."
// check if daemon locked. legacy error text, for now.
daemonLocked, _ := fsrepo.LockedByOtherProcess(req.InvocContext().ConfigRoot)
if daemonLocked {
e = "ipfs daemon is running. please stop it to run this command"
}
return nil, cmds.ClientError(e)
}
return client, nil
}
if details.cannotRunOnClient {
return nil, cmds.ClientError("must run on the ipfs daemon")
}
return nil, nil
}
func doMount(node *core.IpfsNode, fsdir, nsdir string) error {
fmtFuseErr := func(err error, mountpoint string) error {
s := err.Error()
if strings.Contains(s, fuseNoDirectory) {
s = strings.Replace(s, `fusermount: "fusermount:`, "", -1)
s = strings.Replace(s, `\n", exit status 1`, "", -1)
return cmds.ClientError(s)
}
if s == fuseExitStatus1 {
s = fmt.Sprintf("fuse failed to access mountpoint %s", mountpoint)
return cmds.ClientError(s)
}
return err
}
// this sync stuff is so that both can be mounted simultaneously.
var fsmount mount.Mount
var nsmount mount.Mount
var err1 error
var err2 error
done := make(chan struct{})
go func() {
fsmount, err1 = rofs.Mount(node, fsdir)
done <- struct{}{}
}()
go func() {
nsmount, err2 = ipns.Mount(node, nsdir, fsdir)
done <- struct{}{}
}()
<-done
<-done
if err1 != nil || err2 != nil {
log.Infof("error mounting: %s %s", err1, err2)
if fsmount != nil {
fsmount.Unmount()
}
if nsmount != nil {
nsmount.Unmount()
}
if err1 != nil {
return fmtFuseErr(err1, fsdir)
}
return fmtFuseErr(err2, nsdir)
}
// setup node state, so that it can be cancelled
node.Mounts.Ipfs = fsmount
node.Mounts.Ipns = nsmount
return nil
}
// parseAddresses is a function that takes in a slice of string peer addresses
// (multiaddr + peerid) and returns slices of multiaddrs and peerids.
func parseAddresses(addrs []string) (iaddrs []iaddr.IPFSAddr, err error) {
iaddrs = make([]iaddr.IPFSAddr, len(addrs))
for i, saddr := range addrs {
iaddrs[i], err = iaddr.ParseString(saddr)
if err != nil {
return nil, cmds.ClientError("invalid peer address: " + err.Error())
}
}
return
}
// commandShouldRunOnDaemon determines, from commmand details, whether a
// command ought to be executed on an IPFS daemon.
//
// It returns true if the command should be executed on a daemon and false if
// it should be executed on a client. It returns an error if the command must
// NOT be executed on either.
func commandShouldRunOnDaemon(details cmdDetails, req cmds.Request, root *cmds.Command) (bool, error) {
path := req.Path()
// root command.
if len(path) < 1 {
return false, nil
}
if details.cannotRunOnClient && details.cannotRunOnDaemon {
return false, fmt.Errorf("command disabled: %s", path[0])
}
if details.doesNotUseRepo && details.canRunOnClient() {
return false, nil
}
// at this point need to know whether daemon is running. we defer
// to this point so that some commands dont open files unnecessarily.
daemonLocked, err := fsrepo.LockedByOtherProcess(req.InvocContext().ConfigRoot)
if err != nil {
return false, err
}
if daemonLocked {
log.Info("a daemon is running...")
if details.cannotRunOnDaemon {
e := "ipfs daemon is running. please stop it to run this command"
return false, cmds.ClientError(e)
}
return true, nil
}
if details.cannotRunOnClient {
return false, cmds.ClientError("must run on the ipfs daemon")
}
return false, nil
}
// TODO need to decide whether to expose the override as a file or a
// directory. That is: should we allow the user to also specify the
// name of the file?
// TODO cmds.StringOption("event-logs", "l", "Location for machine-readable event logs."),
},
PreRun: func(req cmds.Request) error {
daemonLocked, err := fsrepo.LockedByOtherProcess(req.InvocContext().ConfigRoot)
if err != nil {
return err
}
log.Info("checking if daemon is running...")
if daemonLocked {
log.Debug("Ipfs daemon is running.")
e := "ipfs daemon is running. please stop it to run this command"
return cmds.ClientError(e)
}
return nil
},
Run: func(req cmds.Request, res cmds.Response) {
if req.InvocContext().Online {
res.SetError(errors.New("init must be run offline only!"), cmds.ErrNormal)
return
}
empty, _, err := req.Option("e").Bool() // if !empty, it's okay empty == false
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
},
Options: []cmds.Option{
cmds.StringOption("format", "f", "optional output format"),
},
Run: func(req cmds.Request, res cmds.Response) {
node, err := req.InvocContext().GetNode()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
var id peer.ID
if len(req.Arguments()) > 0 {
id = peer.ID(b58.Decode(req.Arguments()[0]))
if len(id) == 0 {
res.SetError(cmds.ClientError("Invalid peer id"), cmds.ErrClient)
return
}
} else {
id = node.Identity
}
if id == node.Identity {
output, err := printSelf(node)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
res.SetOutput(output)
return
}