frostfs-sdk-go/client/netmap.go

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package client
import (
"context"
"fmt"
"github.com/nspcc-dev/neofs-api-go/rpc/client"
v2netmap "github.com/nspcc-dev/neofs-api-go/v2/netmap"
rpcapi "github.com/nspcc-dev/neofs-api-go/v2/rpc"
v2signature "github.com/nspcc-dev/neofs-api-go/v2/signature"
"github.com/nspcc-dev/neofs-sdk-go/netmap"
"github.com/nspcc-dev/neofs-sdk-go/version"
)
// Netmap contains methods related to netmap.
type Netmap interface {
// EndpointInfo returns attributes, address and public key of the node, specified
// in client constructor via address or open connection. This can be used as a
// health check to see if node is alive and responses to requests.
EndpointInfo(context.Context, ...CallOption) (*EndpointInfo, error)
// NetworkInfo returns information about the NeoFS network of which the remote server is a part.
NetworkInfo(context.Context, ...CallOption) (*netmap.NetworkInfo, error)
}
// EACLWithSignature represents eACL table/signature pair.
type EndpointInfo struct {
version *version.Version
ni *netmap.NodeInfo
}
// LatestVersion returns latest NeoFS API version in use.
func (e *EndpointInfo) LatestVersion() *version.Version {
return e.version
}
// NodeInfo returns returns information about the NeoFS node.
func (e *EndpointInfo) NodeInfo() *netmap.NodeInfo {
return e.ni
}
// EndpointInfo returns attributes, address and public key of the node, specified
// in client constructor via address or open connection. This can be used as a
// health check to see if node is alive and responses to requests.
func (c *clientImpl) EndpointInfo(ctx context.Context, opts ...CallOption) (*EndpointInfo, error) {
// apply all available options
callOptions := c.defaultCallOptions()
for i := range opts {
opts[i](callOptions)
}
reqBody := new(v2netmap.LocalNodeInfoRequestBody)
req := new(v2netmap.LocalNodeInfoRequest)
req.SetBody(reqBody)
req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions))
err := v2signature.SignServiceMessage(callOptions.key, req)
if err != nil {
return nil, err
}
resp, err := rpcapi.LocalNodeInfo(c.Raw(), req)
if err != nil {
return nil, fmt.Errorf("transport error: %w", err)
}
// handle response meta info
if err := c.handleResponseInfoV2(callOptions, resp); err != nil {
return nil, err
}
err = v2signature.VerifyServiceMessage(resp)
if err != nil {
return nil, fmt.Errorf("can't verify response message: %w", err)
}
body := resp.GetBody()
return &EndpointInfo{
version: version.NewFromV2(body.GetVersion()),
ni: netmap.NewNodeInfoFromV2(body.GetNodeInfo()),
}, nil
}
// NetworkInfo returns information about the NeoFS network of which the remote server is a part.
func (c *clientImpl) NetworkInfo(ctx context.Context, opts ...CallOption) (*netmap.NetworkInfo, error) {
// apply all available options
callOptions := c.defaultCallOptions()
for i := range opts {
opts[i](callOptions)
}
reqBody := new(v2netmap.NetworkInfoRequestBody)
req := new(v2netmap.NetworkInfoRequest)
req.SetBody(reqBody)
req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions))
err := v2signature.SignServiceMessage(callOptions.key, req)
if err != nil {
return nil, err
}
resp, err := rpcapi.NetworkInfo(c.Raw(), req, client.WithContext(ctx))
if err != nil {
return nil, fmt.Errorf("v2 NetworkInfo RPC failure: %w", err)
}
// handle response meta info
if err := c.handleResponseInfoV2(callOptions, resp); err != nil {
return nil, err
}
err = v2signature.VerifyServiceMessage(resp)
if err != nil {
return nil, fmt.Errorf("response message verification failed: %w", err)
}
return netmap.NewNetworkInfoFromV2(resp.GetBody().GetNetworkInfo()), nil
}