open-consul/agent/snapshot_endpoint.go
Frank Schröder c7cc62ab5a agent: consolidate handling of 405 Method Not Allowed (#3405)
* agent: consolidate http method not allowed checks

This patch uses the error handling of the http handlers to handle HTTP
method not allowed errors across all available endpoints. It also adds a
test for testing whether the endpoints respond with the correct status
code.

* agent: do not panic on metrics tests

* agent: drop other tests for MethodNotAllowed

* agent: align /agent/join with reality

/agent/join uses PUT instead of GET as documented.

* agent: align /agent/check/{fail,warn,pass} with reality

/agent/check/{fail,warn,pass} uses PUT instead of GET as documented.

* fix some tests

* Drop more tests for method not allowed

* Align TestAgent_RegisterService_InvalidAddress with reality

* Changes API client join to use PUT instead of GET.

* Fixes agent endpoint verbs and removes obsolete tests.

* Updates the change log.
2017-09-25 23:11:19 -07:00

50 lines
1.2 KiB
Go

package agent
import (
"bytes"
"net/http"
"github.com/hashicorp/consul/agent/structs"
)
// Snapshot handles requests to take and restore snapshots. This uses a special
// mechanism to make the RPC since we potentially stream large amounts of data
// as part of these requests.
func (s *HTTPServer) Snapshot(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
var args structs.SnapshotRequest
s.parseDC(req, &args.Datacenter)
s.parseToken(req, &args.Token)
if _, ok := req.URL.Query()["stale"]; ok {
args.AllowStale = true
}
switch req.Method {
case "GET":
args.Op = structs.SnapshotSave
// Headers need to go out before we stream the body.
replyFn := func(reply *structs.SnapshotResponse) error {
setMeta(resp, &reply.QueryMeta)
return nil
}
// Don't bother sending any request body through since it will
// be ignored.
var null bytes.Buffer
if err := s.agent.SnapshotRPC(&args, &null, resp, replyFn); err != nil {
return nil, err
}
return nil, nil
case "PUT":
args.Op = structs.SnapshotRestore
if err := s.agent.SnapshotRPC(&args, req.Body, resp, nil); err != nil {
return nil, err
}
return nil, nil
default:
return nil, MethodNotAllowedError{req.Method, []string{"GET", "PUT"}}
}
}