open-consul/agent/peering_endpoint.go

206 lines
6.3 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package agent
import (
"fmt"
"net/http"
"strings"
"github.com/hashicorp/consul/acl"
external "github.com/hashicorp/consul/agent/grpc-external"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/proto/private/pbpeering"
)
// PeeringEndpoint handles GET, DELETE on v1/peering/name
func (s *HTTPHandlers) PeeringEndpoint(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
name := strings.TrimPrefix(req.URL.Path, "/v1/peering/")
if name == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "Must specify a name to fetch."}
}
// Switch on the method
switch req.Method {
case "GET":
return s.peeringRead(resp, req, name)
case "DELETE":
return s.peeringDelete(resp, req, name)
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 string) (interface{}, error) {
var entMeta acl.EnterpriseMeta
if err := s.parseEntMetaPartition(req, &entMeta); err != nil {
return nil, err
}
args := pbpeering.PeeringReadRequest{
Name: name,
Partition: entMeta.PartitionOrEmpty(),
}
var dc string
options := structs.QueryOptions{}
s.parse(resp, req, &dc, &options)
ctx, err := external.ContextWithQueryOptions(req.Context(), options)
if err != nil {
return nil, err
}
result, err := s.agent.rpcClientPeering.PeeringRead(ctx, &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)}
}
return result.Peering.ToAPI(), 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) {
var entMeta acl.EnterpriseMeta
if err := s.parseEntMetaPartition(req, &entMeta); err != nil {
return nil, err
}
args := pbpeering.PeeringListRequest{
Partition: entMeta.PartitionOrEmpty(),
}
var dc string
options := structs.QueryOptions{}
s.parse(resp, req, &dc, &options)
ctx, err := external.ContextWithQueryOptions(req.Context(), options)
if err != nil {
return nil, err
}
pbresp, err := s.agent.rpcClientPeering.PeeringList(ctx, &args)
if err != nil {
return nil, err
}
return pbresp.ToAPI(), 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) {
if req.Body == nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "The peering arguments must be provided in the body"}
}
var apiRequest api.PeeringGenerateTokenRequest
if err := lib.DecodeJSON(req.Body, &apiRequest); err != nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: fmt.Sprintf("Body decoding failed: %v", err)}
}
args := pbpeering.NewGenerateTokenRequestFromAPI(&apiRequest)
if args.PeerName == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "PeerName is required in the payload when generating a new peering token."}
}
var entMeta acl.EnterpriseMeta
if err := s.parseEntMetaPartition(req, &entMeta); err != nil {
return nil, err
}
if args.Partition == "" {
args.Partition = entMeta.PartitionOrEmpty()
}
var token string
s.parseToken(req, &token)
options := structs.QueryOptions{Token: token}
ctx, err := external.ContextWithQueryOptions(req.Context(), options)
if err != nil {
return nil, err
}
out, err := s.agent.rpcClientPeering.GenerateToken(ctx, args)
if err != nil {
return nil, err
}
return out.ToAPI(), nil
}
// PeeringEstablish handles POSTs to the /v1/peering/establish endpoint. The request
// will always be forwarded via RPC to the local leader.
func (s *HTTPHandlers) PeeringEstablish(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Body == nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "The peering arguments must be provided in the body"}
}
var apiRequest api.PeeringEstablishRequest
if err := lib.DecodeJSON(req.Body, &apiRequest); err != nil {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: fmt.Sprintf("Body decoding failed: %v", err)}
}
args := pbpeering.NewEstablishRequestFromAPI(&apiRequest)
if args.PeerName == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "PeerName is required in the payload when establishing a peering."}
}
if args.PeeringToken == "" {
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "PeeringToken is required in the payload when establishing a peering."}
}
var entMeta acl.EnterpriseMeta
if err := s.parseEntMetaPartition(req, &entMeta); err != nil {
return nil, err
}
if args.Partition == "" {
args.Partition = entMeta.PartitionOrEmpty()
}
var token string
s.parseToken(req, &token)
options := structs.QueryOptions{Token: token}
ctx, err := external.ContextWithQueryOptions(req.Context(), options)
if err != nil {
return nil, err
}
out, err := s.agent.rpcClientPeering.Establish(ctx, args)
if err != nil {
return nil, err
}
return out.ToAPI(), nil
}
// 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 string) (interface{}, error) {
var entMeta acl.EnterpriseMeta
if err := s.parseEntMetaPartition(req, &entMeta); err != nil {
return nil, err
}
args := pbpeering.PeeringDeleteRequest{
Name: name,
Partition: entMeta.PartitionOrEmpty(),
}
var token string
s.parseToken(req, &token)
options := structs.QueryOptions{Token: token}
ctx, err := external.ContextWithQueryOptions(req.Context(), options)
if err != nil {
return nil, err
}
_, err = s.agent.rpcClientPeering.PeeringDelete(ctx, &args)
if err != nil {
return nil, err
}
return nil, nil
}