consul/agent/peering_endpoint.go

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package agent
import (
"fmt"
"net/http"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/proto/pbpeering"
)
// PeeringEndpoint handles GET, DELETE on v1/peering/name
func (s *HTTPHandlers) PeeringEndpoint(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
name, err := getPathSuffixUnescaped(req.URL.Path, "/v1/peering/")
if err != nil {
return nil, err
}
if name == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "Must specify a name to fetch."}
}
entMeta := s.agent.AgentEnterpriseMeta()
if err := s.parseEntMetaPartition(req, entMeta); err != nil {
return nil, err
}
// Switch on the method
switch req.Method {
case "GET":
return s.peeringRead(resp, req, name, entMeta.PartitionOrEmpty())
case "DELETE":
return s.peeringDelete(resp, req, name, entMeta.PartitionOrEmpty())
default:
return nil, MethodNotAllowedError{req.Method, []string{"GET", "DELETE"}}
}
}
// peeringRead fetches a peering that matches the name and partition.
// This assumes that the name and partition parameters are valid
func (s *HTTPHandlers) peeringRead(resp http.ResponseWriter, req *http.Request, name, partition string) (interface{}, error) {
args := pbpeering.PeeringReadRequest{
Name: name,
Datacenter: s.agent.config.Datacenter,
Partition: partition, // should be "" in OSS
}
result, err := s.agent.rpcClientPeering.PeeringRead(req.Context(), &args)
if err != nil {
return nil, err
}
if result.Peering == nil {
return nil, HTTPError{StatusCode: http.StatusNotFound, Reason: fmt.Sprintf("Peering not found for %q", name)}
}
// TODO(peering): replace with API types
return result.Peering, nil
}
// PeeringList fetches all peerings in the datacenter in OSS or in a given partition in Consul Enterprise.
func (s *HTTPHandlers) PeeringList(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
entMeta := s.agent.AgentEnterpriseMeta()
if err := s.parseEntMetaPartition(req, entMeta); err != nil {
return nil, err
}
args := pbpeering.PeeringListRequest{
Datacenter: s.agent.config.Datacenter,
Partition: entMeta.PartitionOrEmpty(), // should be "" in OSS
}
pbresp, err := s.agent.rpcClientPeering.PeeringList(req.Context(), &args)
if err != nil {
return nil, err
}
return pbresp.Peerings, nil
}
// PeeringGenerateToken handles POSTs to the /v1/peering/token endpoint. The request
// will always be forwarded via RPC to the local leader.
func (s *HTTPHandlers) PeeringGenerateToken(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
// TODO(peering): decode into api type
args := pbpeering.GenerateTokenRequest{
Datacenter: s.agent.config.Datacenter,
}
if req.Body == nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "The peering arguments must be provided in the body"}
}
if err := lib.DecodeJSON(req.Body, &args); err != nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: fmt.Sprintf("Body decoding failed: %v", err)}
}
if args.PeerName == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "PeerName is required in the payload when generating a new peering token."}
}
entMeta := s.agent.AgentEnterpriseMeta()
if err := s.parseEntMetaPartition(req, entMeta); err != nil {
return nil, err
}
if args.Partition == "" {
args.Partition = entMeta.PartitionOrEmpty()
}
return s.agent.rpcClientPeering.GenerateToken(req.Context(), &args)
}
// PeeringInitiate handles POSTs to the /v1/peering/initiate endpoint. The request
// will always be forwarded via RPC to the local leader.
func (s *HTTPHandlers) PeeringInitiate(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
// TODO(peering): decode into api type
args := pbpeering.InitiateRequest{
Datacenter: s.agent.config.Datacenter,
}
if req.Body == nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "The peering arguments must be provided in the body"}
}
if err := lib.DecodeJSON(req.Body, &args); err != nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: fmt.Sprintf("Body decoding failed: %v", err)}
}
if args.PeerName == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "PeerName is required in the payload when initiating a peering."}
}
if args.PeeringToken == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "PeeringToken is required in the payload when initiating a peering."}
}
return s.agent.rpcClientPeering.Initiate(req.Context(), &args)
}
// peeringDelete initiates a deletion for a peering that matches the name and partition.
// This assumes that the name and partition parameters are valid.
func (s *HTTPHandlers) peeringDelete(resp http.ResponseWriter, req *http.Request, name, partition string) (interface{}, error) {
args := pbpeering.PeeringDeleteRequest{
Name: name,
Datacenter: s.agent.config.Datacenter,
Partition: partition, // should be "" in OSS
}
result, err := s.agent.rpcClientPeering.PeeringDelete(req.Context(), &args)
if err != nil {
return nil, err
}
// TODO(peering) -- today pbpeering.PeeringDeleteResponse is a {} so the result below is actually {}
return result, nil
}