lotus/cli/util/apiinfo.go
Hector Sanjuan c6ed6a0d65 Add support for /https, /http, /wss API multiaddresses.
Lotus API endpoint are by default expressed as multiaddresses (i.e. lotus auth
api-info) which end in /http, although they can be provided as standard URLs too.

There is an inconsistency here because despite the "http" part, Lotus will use "ws" protocol.

This lets lotus default to "ws" but honor whatever the user puts in the multiaddress (i.e.
/dns4/my.lotus.node/tcp/443/https) would work now using https, where before it uses "ws".
2020-10-14 14:58:58 +02:00

99 lines
1.9 KiB
Go

package cliutil
import (
"net/http"
"net/url"
"regexp"
"strings"
logging "github.com/ipfs/go-log/v2"
"github.com/multiformats/go-multiaddr"
manet "github.com/multiformats/go-multiaddr/net"
)
var log = logging.Logger("cliutil")
var (
infoWithToken = regexp.MustCompile("^[a-zA-Z0-9\\-_]+?\\.[a-zA-Z0-9\\-_]+?\\.([a-zA-Z0-9\\-_]+)?:.+$")
)
type APIInfo struct {
Addr string
Token []byte
}
func ParseApiInfo(s string) APIInfo {
var tok []byte
if infoWithToken.Match([]byte(s)) {
sp := strings.SplitN(s, ":", 2)
tok = []byte(sp[0])
s = sp[1]
}
return APIInfo{
Addr: s,
Token: tok,
}
}
func (a APIInfo) DialArgs() (string, error) {
ma, err := multiaddr.NewMultiaddr(a.Addr)
if err == nil {
_, addr, err := manet.DialArgs(ma)
if err != nil {
return "", err
}
protocol := "ws"
// If the user specifies the multiaddress as
// /something/tcp/1234/http or/something/tcp/1234/https
// or /something/tcp/1234/wss then honor that.
for _, p := range []int{
multiaddr.P_HTTP,
multiaddr.P_HTTPS,
multiaddr.P_WSS,
} {
if _, err := ma.ValueForProtocol(p); err == nil {
protocol = multiaddr.ProtocolWithCode(p).Name
break
}
}
return protocol + "://" + addr + "/rpc/v0", nil
}
_, err = url.Parse(a.Addr)
if err != nil {
return "", err
}
return a.Addr + "/rpc/v0", nil
}
func (a APIInfo) Host() (string, error) {
ma, err := multiaddr.NewMultiaddr(a.Addr)
if err == nil {
_, addr, err := manet.DialArgs(ma)
if err != nil {
return "", err
}
return addr, nil
}
spec, err := url.Parse(a.Addr)
if err != nil {
return "", err
}
return spec.Host, nil
}
func (a APIInfo) AuthHeader() http.Header {
if len(a.Token) != 0 {
headers := http.Header{}
headers.Add("Authorization", "Bearer "+string(a.Token))
return headers
}
log.Warn("API Token not set and requested, capabilities might be limited.")
return nil
}