forked from TrueCloudLab/frostfs-api-go
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package client
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"net"
|
|
"net/url"
|
|
|
|
grpcstd "google.golang.org/grpc"
|
|
)
|
|
|
|
var errInvalidEndpoint = errors.New("invalid endpoint options")
|
|
|
|
func (c *Client) openGRPCConn(ctx context.Context) error {
|
|
if c.conn != nil {
|
|
return nil
|
|
}
|
|
|
|
if c.addr == "" {
|
|
return errInvalidEndpoint
|
|
}
|
|
|
|
dialCtx, cancel := context.WithTimeout(ctx, c.dialTimeout)
|
|
var err error
|
|
|
|
c.conn, err = grpcstd.DialContext(dialCtx, c.addr, c.grpcDialOpts...)
|
|
|
|
cancel()
|
|
|
|
if err != nil {
|
|
return fmt.Errorf("gRPC dial: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// ParseURI parses s as address and returns a host and a flag
|
|
// indicating that TLS is enabled. If multi-address is provided
|
|
// the argument is returned unchanged.
|
|
func ParseURI(s string) (string, bool, error) {
|
|
uri, err := url.ParseRequestURI(s)
|
|
if err != nil {
|
|
return s, false, nil
|
|
}
|
|
|
|
// check if passed string was parsed correctly
|
|
// URIs that do not start with a slash after the scheme are interpreted as:
|
|
// `scheme:opaque` => if `opaque` is not empty, then it is supposed that URI
|
|
// is in `host:port` format
|
|
if uri.Host == "" {
|
|
uri.Host = uri.Scheme
|
|
uri.Scheme = grpcScheme // assume GRPC by default
|
|
if uri.Opaque != "" {
|
|
uri.Host = net.JoinHostPort(uri.Host, uri.Opaque)
|
|
}
|
|
}
|
|
|
|
switch uri.Scheme {
|
|
case grpcTLSScheme, grpcScheme:
|
|
default:
|
|
return "", false, fmt.Errorf("unsupported scheme: %s", uri.Scheme)
|
|
}
|
|
|
|
return uri.Host, uri.Scheme == grpcTLSScheme, nil
|
|
}
|