Federation sender API remodel (#988)

* Define an input API for the federationsender

* Wiring for rooomserver input API and federation sender input API

* Whoops, commit common too

* Merge input API into query API

* Rename FederationSenderQueryAPI to FederationSenderInternalAPI

* Fix dendritejs

* Rename Input to Perform

* Fix a couple of inputs -> performs

* Remove needless storage interface, add comments

federationsender/api/perform.go

@@ -0,0 +1,56 @@
+package api
+
+import (
+	"context"
+
+	commonHTTP "github.com/matrix-org/dendrite/common/http"
+	"github.com/opentracing/opentracing-go"
+)
+
+const (
+	// FederationSenderPerformJoinRequestPath is the HTTP path for the PerformJoinRequest API.
+	FederationSenderPerformJoinRequestPath = "/api/federationsender/performJoinRequest"
+
+	// FederationSenderPerformLeaveRequestPath is the HTTP path for the PerformLeaveRequest API.
+	FederationSenderPerformLeaveRequestPath = "/api/federationsender/performLeaveRequest"
+)
+
+type PerformJoinRequest struct {
+	RoomID string `json:"room_id"`
+}
+
+type PerformJoinResponse struct {
+}
+
+// Handle an instruction to make_join & send_join with a remote server.
+func (h *httpFederationSenderInternalAPI) PerformJoinRequest(
+	ctx context.Context,
+	request *PerformJoinRequest,
+	response *PerformJoinResponse,
+) error {
+	span, ctx := opentracing.StartSpanFromContext(ctx, "PerformJoinRequest")
+	defer span.Finish()
+
+	apiURL := h.federationSenderURL + FederationSenderPerformJoinRequestPath
+	return commonHTTP.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
+}
+
+type PerformLeaveRequest struct {
+	RoomID string `json:"room_id"`
+}
+
+type PerformLeaveResponse struct {
+}
+
+// Handle an instruction to make_leave & send_leave with a remote server.
+func (h *httpFederationSenderInternalAPI) PerformLeaveRequest(
+	ctx context.Context,
+	request *PerformLeaveRequest,
+	response *PerformLeaveResponse,
+) error {
+	span, ctx := opentracing.StartSpanFromContext(ctx, "PerformLeaveRequest")
+	defer span.Finish()
+
+	apiURL := h.federationSenderURL + FederationSenderPerformLeaveRequestPath
+	return commonHTTP.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
+}