fix(panel): LuckPerms 页读不到时如实说读不到，用户组和权限节点可按名称移除

panel/src/i18n/resources/en-US/servers.json

@@ -157,6 +157,12 @@
   "luckperms_select_player_prompt": "Please select an online player from the list, or enter a username to query.",
   "luckperms_add_group_btn": "Add Parent Group",
   "luckperms_add_perm_btn": "Add Permission",
+  "luckperms_remove_group_btn": "Remove Parent Group",
+  "luckperms_remove_perm_btn": "Remove Permission",
+  "luckperms_perm_form_title": "Add or remove a permission",
+  "luckperms_remove_perm_hint": "Remove clears the node in the given world context whether it was granted or denied; Value applies to Add only.",
+  "luckperms_groups_unread": "Couldn't read this player's groups. To remove one, type its name below and press Remove Parent Group.",
+  "luckperms_perms_unread": "Couldn't read this player's permission nodes. To remove one, type the node (and world, if it was set per world) below and press Remove Permission.",
   "luckperms_groups_title": "Parent Groups",
   "luckperms_permissions_title": "Permission Nodes",
   "luckperms_node_column": "Permission Node",
@@ -175,7 +181,7 @@
   "luckperms_revert_success": "Action reverted successfully!",
   "luckperms_presets": "Presets",
   "luckperms_no_parent_groups": "No parent groups assigned",
-  "luckperms_no_reply": "The server returned no parseable data — some LuckPerms versions do not reply over RCON, so the group/permission lists below may be incomplete. Grants and revocations are still sent to the server; name-based writes only bind for players who have joined since LuckPerms was installed, so writes against names that never joined may silently do nothing.",
+  "luckperms_no_reply": "LuckPerms doesn't answer over RCON on this server, so the player's current groups and permission nodes can't be shown. Adding and removing still go through: type the group or node name below. Name-based changes only bind for players who have joined since LuckPerms was installed, so changes against a name that never joined may silently do nothing.",
   "luckperms_no_output": "(the server returned no output — result unknown)",
   "luckperms_global": "global",
   "luckperms_no_perms": "No explicit permission nodes assigned",

panel/src/i18n/resources/zh-CN/servers.json

@@ -157,6 +157,12 @@
   "luckperms_select_player_prompt": "请在左侧选择在线玩家，或在上方输入玩家名进行查询",
   "luckperms_add_group_btn": "添加用户组",
   "luckperms_add_perm_btn": "添加权限",
+  "luckperms_remove_group_btn": "移除用户组",
+  "luckperms_remove_perm_btn": "移除权限",
+  "luckperms_perm_form_title": "添加或移除权限",
+  "luckperms_remove_perm_hint": "移除会清掉该世界范围里的这个节点，授予和拒绝都一样清掉；权限值只对添加生效。",
+  "luckperms_groups_unread": "读不到这名玩家现有的用户组。要移除某个组，在下面填上组名后点「移除用户组」。",
+  "luckperms_perms_unread": "读不到这名玩家现有的权限节点。要移除某个节点，在下面填上节点名（按世界设置的再填世界）后点「移除权限」。",
   "luckperms_groups_title": "所属用户组",
   "luckperms_permissions_title": "拥有权限节点",
   "luckperms_node_column": "权限节点",
@@ -175,7 +181,7 @@
   "luckperms_revert_success": "已成功撤销该操作！",
   "luckperms_presets": "预设",
   "luckperms_no_parent_groups": "未分配任何父组",
-  "luckperms_no_reply": "服务器没有返回可解析的数据——部分 LuckPerms 版本不通过 RCON 回包，下面的用户组/权限列表可能不准确。授予与撤销会照常发给服务器执行；但按玩家名的操作只对「自 LuckPerms 安装以来进过本服」的玩家可靠，对没进过服的玩家名可能静默不生效。",
+  "luckperms_no_reply": "这台服上的 LuckPerms 不通过 RCON 回话，所以显示不出玩家现有的用户组和权限节点。添加和移除照常生效：在下面填上组名或节点名即可。按玩家名的操作只对「自 LuckPerms 安装以来进过本服」的玩家可靠，对没进过服的玩家名可能静默不生效。",
   "luckperms_no_output": "（服务器未返回输出，无法确认结果）",
   "luckperms_global": "全局",
   "luckperms_no_perms": "尚未分配任何权限节点",

panel/src/pages/ServerLuckPerms.test.tsx

@@ -13,6 +13,7 @@ const calls = vi.hoisted(() => ({
   accessPlayers: vi.fn(),
   accessLuckPermsInfo: vi.fn(),
   accessGroup: vi.fn(),
+  accessPermission: vi.fn(),
 }));
 vi.mock("@/lib/tier", () => ({
   useTier: () => ({
@@ -37,6 +38,7 @@ beforeEach(() => {
   calls.accessPlayers.mockResolvedValue({ online: 0, max: 20, players: [], output: "" });
   calls.accessLuckPermsInfo.mockRejectedValue(missing);
   calls.accessGroup.mockRejectedValue(missing);
+  calls.accessPermission.mockRejectedValue(missing);
 });
 afterEach(() => {
   vi.restoreAllMocks();
@@ -106,3 +108,76 @@ describe("ServerLuckPerms on a server that is down", () => {
     expect(screen.queryByPlaceholderText("Steve")).toBeNull();
   });
 });
+
+// LuckPerms 5.5 answers every `lp` command over RCON with an empty body, so the
+// read of a player comes back with no output and no entries. The lists must not
+// claim the player has nothing, and whatever was granted must still be removable
+// by name, since no read row ever appears to hang a remove button on.
+describe("ServerLuckPerms when LuckPerms does not answer", () => {
+  const silent = { player: "Alex", groups: [], permissions: [], output: "" };
+
+  beforeEach(() => {
+    calls.accessLuckPermsInfo.mockResolvedValue(silent);
+    calls.accessGroup.mockResolvedValue({ output: "" });
+    calls.accessPermission.mockResolvedValue({ output: "" });
+  });
+
+  async function lookUpAlex() {
+    renderPage();
+    await userEvent.type(await screen.findByPlaceholderText("Steve"), "Alex{Enter}");
+    await screen.findByText(/Couldn't read this player's groups/);
+  }
+
+  it("says the lists are unread, never that they are empty", async () => {
+    await lookUpAlex();
+    expect(screen.getByText(/Couldn't read this player's permission nodes/)).toBeTruthy();
+    expect(screen.queryByText("No parent groups assigned")).toBeNull();
+    expect(screen.queryByText("No explicit permission nodes assigned")).toBeNull();
+  });
+
+  it("removes a typed group", async () => {
+    await lookUpAlex();
+    const input = screen.getByLabelText("Group Name");
+    await userEvent.type(input, "vip");
+    await userEvent.click(screen.getByRole("button", { name: /remove parent group/i }));
+    expect(calls.accessGroup).toHaveBeenCalledWith("lobby", "remove", "Alex", "vip");
+    expect(calls.accessGroup).toHaveBeenCalledTimes(1);
+    expect((input as HTMLInputElement).value).toBe("");
+  });
+
+  it("removes a typed node in its world, whatever value it held", async () => {
+    await lookUpAlex();
+    await userEvent.type(screen.getByLabelText("Permission Node"), "essentials.fly");
+    await userEvent.type(screen.getByLabelText("World Context (Optional)"), "world_nether");
+    await userEvent.click(screen.getByRole("button", { name: /^remove permission$/i }));
+    expect(calls.accessPermission).toHaveBeenCalledWith("lobby", "unset", "Alex", "essentials.fly", undefined, "world_nether");
+    expect(calls.accessPermission).toHaveBeenCalledTimes(1);
+    expect((screen.getByLabelText("Permission Node") as HTMLInputElement).value).toBe("");
+  });
+
+  it("refuses a malformed typed node without sending it", async () => {
+    await lookUpAlex();
+    await userEvent.type(screen.getByLabelText("Permission Node"), "essentials fly");
+    await userEvent.click(screen.getByRole("button", { name: /^remove permission$/i }));
+    expect((await screen.findByRole("alert")).textContent).toMatch(/Invalid permission node/);
+    expect(calls.accessPermission).not.toHaveBeenCalled();
+  });
+
+  it("keeps the typed node when the removal is refused", async () => {
+    calls.accessPermission.mockRejectedValue(missing);
+    await lookUpAlex();
+    await userEvent.type(screen.getByLabelText("Permission Node"), "essentials.fly");
+    await userEvent.click(screen.getByRole("button", { name: /^remove permission$/i }));
+    expect((await screen.findByRole("alert")).textContent).toMatch(/LuckPerms isn't installed/);
+    expect((screen.getByLabelText("Permission Node") as HTMLInputElement).value).toBe("essentials.fly");
+  });
+
+  it("still says none when LuckPerms did answer with nothing", async () => {
+    calls.accessLuckPermsInfo.mockResolvedValue({ ...silent, output: "Alex has no parent groups." });
+    renderPage();
+    await userEvent.type(await screen.findByPlaceholderText("Steve"), "Alex{Enter}");
+    expect(await screen.findByText("No parent groups assigned")).toBeTruthy();
+    expect(screen.getByText("No explicit permission nodes assigned")).toBeTruthy();
+    expect(screen.queryByText(/Couldn't read this player's/)).toBeNull();
+  });
+});

panel/src/pages/ServerLuckPerms.tsx

@@ -104,6 +104,10 @@ export function ServerLuckPerms() {
     !(lpInfo.output ?? "").trim() &&
     (lpInfo.groups?.length ?? 0) === 0 &&
     (lpInfo.permissions?.length ?? 0) === 0;
+  // Unread: the lists below know nothing, so they say so instead of "none", and a
+  // group or node is removed by typing it — a read row is the only other way in,
+  // and on LuckPerms 5.5 there never is one.
+  const lpUnread = lpSilent || !!lpError;
 
   // Form State
   const [groupNameInput, setGroupNameInput] = useState("");
@@ -162,8 +166,9 @@ export function ServerLuckPerms() {
     }
   };
 
-  const handleRemoveGroup = async (groupName: string) => {
-    if (!selectedPlayer || submitting) return;
+  // Returns whether the server took the removal, so the typed form can clear itself.
+  const handleRemoveGroup = async (groupName: string): Promise<boolean> => {
+    if (!selectedPlayer || submitting) return false;
     setSubmitting(true);
     setFormFeedback(null);
     try {
@@ -177,27 +182,37 @@ export function ServerLuckPerms() {
         output: res.output || t("luckperms_no_output"),
       });
       reloadLp();
+      return true;
     } catch (err) {
       setFormFeedback({ kind: "err", msg: humanizeError(err) });
+      return false;
     } finally {
       setSubmitting(false);
     }
   };
 
-  const handleAddPermission = async (e: React.FormEvent) => {
-    e.preventDefault();
-    if (!selectedPlayer || !permNodeInput.trim() || submitting) return;
+  // typedPermission is the node and world the form holds, or null (with the reason
+  // shown) when either is malformed.
+  const typedPermission = (): { node: string; world: string } | null => {
     const node = permNodeInput.trim();
     const world = permWorldInput.trim();
-
     if (!LP_NODE.test(node)) {
       setFormFeedback({ kind: "err", msg: t("luckperms_error_invalid_node") });
-      return;
+      return null;
     }
     if (world !== "" && !LP_CTX.test(world)) {
       setFormFeedback({ kind: "err", msg: t("luckperms_error_invalid_world") });
-      return;
+      return null;
     }
+    return { node, world };
+  };
+
+  const handleAddPermission = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!selectedPlayer || !permNodeInput.trim() || submitting) return;
+    const typed = typedPermission();
+    if (!typed) return;
+    const { node, world } = typed;
 
     setSubmitting(true);
     setFormFeedback(null);
@@ -223,8 +238,9 @@ export function ServerLuckPerms() {
     }
   };
 
-  const handleRemovePermission = async (node: string, world?: string) => {
-    if (!selectedPlayer || submitting) return;
+  // Returns whether the server took the unset, so the typed form can clear itself.
+  const handleRemovePermission = async (node: string, world?: string): Promise<boolean> => {
+    if (!selectedPlayer || submitting) return false;
     setSubmitting(true);
     setFormFeedback(null);
     try {
@@ -239,13 +255,27 @@ export function ServerLuckPerms() {
         output: res.output || t("luckperms_no_output"),
       });
       reloadLp();
+      return true;
     } catch (err) {
       setFormFeedback({ kind: "err", msg: humanizeError(err) });
+      return false;
     } finally {
       setSubmitting(false);
     }
   };
 
+  // The typed removal: the node and world as the form holds them, whatever value
+  // the node was set to (LuckPerms unsets a node in a context regardless of it).
+  const handleRemoveTypedPermission = async () => {
+    if (!selectedPlayer || !permNodeInput.trim() || submitting) return;
+    const typed = typedPermission();
+    if (!typed) return;
+    if (await handleRemovePermission(typed.node, typed.world)) {
+      setPermNodeInput("");
+      setPermWorldInput("");
+    }
+  };
+
   const handleRevert = async (item: ActionHistoryItem) => {
     if (submitting || item.reverted) return;
     setSubmitting(true);
@@ -503,6 +533,8 @@ export function ServerLuckPerms() {
                                 </button>
                               </Badge>
                             ))
+                          ) : lpUnread ? (
+                            <p className="text-xs text-muted-foreground py-1">{t("luckperms_groups_unread")}</p>
                           ) : (
                             <p className="text-xs text-muted-foreground/60 italic py-1">{t("luckperms_no_parent_groups")}</p>
                           )}
@@ -538,21 +570,38 @@ export function ServerLuckPerms() {
                               </Select>
                             </div>
                           </div>
-                          <Button
-                            size="sm"
-                            onClick={() => {
-                              const val = groupNameInput.trim();
-                              if (val) {
-                                handleAddGroup(val);
-                                setGroupNameInput("");
-                              }
-                            }}
-                            disabled={submitting || !groupNameInput.trim()}
-                            className="h-9 px-4 shrink-0 w-full sm:w-auto hover:bg-primary/90 transition-colors"
-                          >
-                            <Plus className="h-4 w-4 mr-1" />
-                            {t("luckperms_add_group_btn")}
-                          </Button>
+                          <div className="flex gap-2 w-full sm:w-auto">
+                            <Button
+                              size="sm"
+                              onClick={() => {
+                                const val = groupNameInput.trim();
+                                if (val) {
+                                  handleAddGroup(val);
+                                  setGroupNameInput("");
+                                }
+                              }}
+                              disabled={submitting || !groupNameInput.trim()}
+                              className="h-9 px-4 shrink-0 flex-1 sm:flex-none hover:bg-primary/90 transition-colors"
+                            >
+                              <Plus className="h-4 w-4 mr-1" />
+                              {t("luckperms_add_group_btn")}
+                            </Button>
+                            <Button
+                              size="sm"
+                              variant="outline"
+                              onClick={async () => {
+                                const val = groupNameInput.trim();
+                                if (val && (await handleRemoveGroup(val))) {
+                                  setGroupNameInput("");
+                                }
+                              }}
+                              disabled={submitting || !groupNameInput.trim()}
+                              className="h-9 px-4 shrink-0 flex-1 sm:flex-none hover:text-destructive transition-colors"
+                            >
+                              <Trash2 className="h-4 w-4 mr-1" />
+                              {t("luckperms_remove_group_btn")}
+                            </Button>
+                          </div>
                         </div>
                       </div>
                     )}
@@ -634,9 +683,15 @@ export function ServerLuckPerms() {
                                   ))
                                 ) : (
                                   <tr>
-                                    <td colSpan={4} className="px-4 py-10 text-center text-muted-foreground/60 italic">
-                                      {t("luckperms_no_perms")}
-                                    </td>
+                                    {lpUnread ? (
+                                      <td colSpan={4} className="px-4 py-10 text-center text-muted-foreground">
+                                        {t("luckperms_perms_unread")}
+                                      </td>
+                                    ) : (
+                                      <td colSpan={4} className="px-4 py-10 text-center text-muted-foreground/60 italic">
+                                        {t("luckperms_no_perms")}
+                                      </td>
+                                    )}
                                   </tr>
                                 )}
                               </tbody>
@@ -647,7 +702,7 @@ export function ServerLuckPerms() {
                         {/* Add Permission Node Inline Form */}
                         <form onSubmit={handleAddPermission} className="border-t border-border/50 pt-4 space-y-4">
                           <Label className="text-xs font-semibold text-muted-foreground">
-                            {t("luckperms_add_perm_btn")}
+                            {t("luckperms_perm_form_title")}
                           </Label>
                           <div className="grid grid-cols-1 sm:grid-cols-4 gap-3.5">
                             <div className="sm:col-span-2 grid gap-1.5">
@@ -716,15 +771,30 @@ export function ServerLuckPerms() {
                             </div>
                           </div>
 
-                          <div className="flex justify-end pt-1">
-                            <Button
-                              type="submit"
-                              disabled={submitting || !permNodeInput.trim()}
-                              className="w-full sm:w-auto h-9 hover:bg-primary/90 transition-colors"
-                            >
-                              <Plus className="h-4 w-4 mr-1" />
-                              {t("luckperms_add_perm_btn")}
-                            </Button>
+                          <div className="flex flex-col sm:flex-row sm:items-center gap-3 pt-1">
+                            <p className="text-[11px] text-muted-foreground sm:flex-1">
+                              {t("luckperms_remove_perm_hint")}
+                            </p>
+                            <div className="flex gap-2">
+                              <Button
+                                type="submit"
+                                disabled={submitting || !permNodeInput.trim()}
+                                className="flex-1 sm:flex-none h-9 hover:bg-primary/90 transition-colors"
+                              >
+                                <Plus className="h-4 w-4 mr-1" />
+                                {t("luckperms_add_perm_btn")}
+                              </Button>
+                              <Button
+                                type="button"
+                                variant="outline"
+                                onClick={handleRemoveTypedPermission}
+                                disabled={submitting || !permNodeInput.trim()}
+                                className="flex-1 sm:flex-none h-9 hover:text-destructive transition-colors"
+                              >
+                                <Trash2 className="h-4 w-4 mr-1" />
+                                {t("luckperms_remove_perm_btn")}
+                              </Button>
+                            </div>
                           </div>
                         </form>
                       </div>