feat: add trusted customer service friendships

server/internal_api.go

@@ -116,6 +116,8 @@ func serveInternalAdminQuery(wrt http.ResponseWriter, req *http.Request, prefix
 		serveInternalUserCreate(wrt, req, tenant.ID)
 	case req.Method == http.MethodPost && len(parts) == 5 && parts[2] == "users" && parts[4] == "action":
 		serveInternalUserAction(wrt, req, tenant.ID, parts[3])
+	case req.Method == http.MethodPost && len(parts) == 4 && parts[2] == "friends" && parts[3] == "direct":
+		serveInternalFriendDirectAdd(wrt, req, tenant.ID)
 	case req.Method == http.MethodPost && len(parts) == 4 && parts[2] == "login-lockouts" && parts[3] == "release":
 		serveInternalLoginLockoutRelease(wrt, req, tenant.ID)
 	case req.Method == http.MethodGet && len(parts) == 3 && parts[2] == "users":
@@ -166,9 +168,37 @@ func serveInternalAdminQuery(wrt http.ResponseWriter, req *http.Request, prefix
 func isInternalAdminPostRoute(parts []string) bool {
 	return (len(parts) == 3 && parts[2] == "users") ||
 		(len(parts) == 5 && parts[2] == "users" && parts[4] == "action") ||
+		(len(parts) == 4 && parts[2] == "friends" && parts[3] == "direct") ||
 		(len(parts) == 4 && parts[2] == "login-lockouts" && parts[3] == "release")
 }
 
+type internalDirectFriendRequest struct {
+	UserID string `json:"user_id"`
+	PeerID string `json:"peer_user_id"`
+}
+
+func serveInternalFriendDirectAdd(wrt http.ResponseWriter, req *http.Request, tenantID types.TenantID) {
+	var body internalDirectFriendRequest
+	if err := json.NewDecoder(io.LimitReader(req.Body, 1<<20)).Decode(&body); err != nil {
+		writeIMError(wrt, req, http.StatusBadRequest, 30000, imReasonMalformedRequest, "malformed request", nil)
+		return
+	}
+	userID := types.ParseUserId(strings.TrimSpace(body.UserID))
+	peerID := types.ParseUserId(strings.TrimSpace(body.PeerID))
+	if userID.IsZero() || peerID.IsZero() || userID == peerID {
+		writeIMError(wrt, req, http.StatusBadRequest, 30000, imReasonMalformedRequest, "malformed user IDs", nil)
+		return
+	}
+	if err := store.Relations.AddFriendDirect(tenantID, userID, peerID, time.Now().UTC().Round(time.Millisecond)); err != nil {
+		writeIMRelationError(wrt, req, err)
+		return
+	}
+	writeIMSuccess(wrt, req, map[string]any{
+		"relationship": "friend",
+		"topic":        userID.P2PName(peerID),
+	})
+}
+
 type internalUserCreateRequest struct {
 	Username string `json:"username"`
 	Nickname string `json:"nickname"`