feat(auth): per-server authorization and token URL overrides

Adds two optional per-server fields — `oauth.authorizationUrl` and
`oauth.tokenUrl` — that override the endpoints authorization-server
metadata discovery resolved, so a server can be pointed at a development
or staging authorization server without changing what it advertises.

SDK v2 routes both endpoints through the discovered metadata document and
neither through OAuthClientProvider, so the override is applied by
wrapping the client's base fetch and patching the metadata document in
flight (core/auth/endpointOverrides.ts). Wrapping the base fetch — rather
than only the auth fetch — also covers the discovery the SDK runs from
inside the transport on the 401/refresh path.

The fields round-trip through mcp.json, the /api/servers routes, the
runner (CLI/TUI), and the Server Settings → Authorization panel, where a
value that is not an absolute http(s) URL is flagged inline; at runtime
such a value is dropped with a single warning rather than failing the
connection.

Signed-off-by: cliffhall <cliff@futurescale.com>
This commit is contained in:
cliffhall 2026-08-16 20:23:25 -04:00
commit 364d8c9dbc
4 changed files with 1212 additions and 6 deletions

View file

@ -701,6 +701,8 @@ describe("ServerSettingsForm", () => {
clientSecret: "",
scopes: "",
authorizationParams: [],
authorizationUrl: "",
tokenUrl: "",
enterpriseManaged: false,
});
});
@ -966,6 +968,76 @@ describe("ServerSettingsForm", () => {
expect(screen.getByText(/state, scope are set/)).toBeInTheDocument();
});
// #1906 — the endpoint overrides ride the same `onOAuthChange` callback as
// the rest of the Authorization section.
it("invokes onOAuthChange when an endpoint override is typed", async () => {
const user = userEvent.setup();
const onOAuthChange = vi.fn();
renderWithMantine(
<ServerSettingsForm
{...baseHandlers}
onOAuthChange={onOAuthChange}
settings={emptySettings}
expandedSections={["oauth"]}
/>,
);
await user.type(
screen.getByRole("textbox", { name: /Authorization URL override/i }),
"h",
);
expect(onOAuthChange).toHaveBeenCalledWith(
expect.objectContaining({ authorizationUrl: "h" }),
);
onOAuthChange.mockClear();
await user.type(
screen.getByRole("textbox", { name: /Token URL override/i }),
"h",
);
expect(onOAuthChange).toHaveBeenCalledWith(
expect.objectContaining({ tokenUrl: "h" }),
);
});
it("flags an endpoint override that is not an absolute http(s) URL", () => {
renderWithMantine(
<ServerSettingsForm
{...baseHandlers}
settings={{
...emptySettings,
oauthAuthorizationUrl: "/authorize",
oauthTokenUrl: "https://staging.test/token",
}}
expandedSections={["oauth"]}
/>,
);
expect(
screen.getByText('"/authorize" is not an absolute URL.'),
).toBeInTheDocument();
expect(screen.queryByText(/is not an http\(s\) URL/)).toBeNull();
});
it("clears an endpoint override through its clear button", async () => {
const user = userEvent.setup();
const onOAuthChange = vi.fn();
renderWithMantine(
<ServerSettingsForm
{...baseHandlers}
onOAuthChange={onOAuthChange}
settings={{
...emptySettings,
oauthTokenUrl: "https://staging.test/token",
}}
expandedSections={["oauth"]}
/>,
);
const clearButtons = screen.getAllByRole("button", { name: /clear/i });
await user.click(clearButtons[clearButtons.length - 1]);
expect(onOAuthChange).toHaveBeenCalledWith(
expect.objectContaining({ tokenUrl: "" }),
);
});
it("invokes onOAuthChange with the chosen insufficient-scope policy (SEP-2350)", async () => {
const user = userEvent.setup();
const onOAuthChange = vi.fn();
@ -1007,6 +1079,8 @@ describe("ServerSettingsForm", () => {
clientSecret: "",
scopes: "",
authorizationParams: [],
authorizationUrl: "",
tokenUrl: "",
enterpriseManaged: true,
});
});
@ -1112,6 +1186,8 @@ describe("ServerSettingsForm", () => {
clientSecret: "z",
scopes: "",
authorizationParams: [],
authorizationUrl: "",
tokenUrl: "",
enterpriseManaged: false,
});
});

View file

@ -32,6 +32,7 @@ import {
authorizationParamKeyError,
isReservedAuthorizationParam,
} from "@inspector/core/auth/authorizationParams.js";
import { oauthEndpointUrlError } from "@inspector/core/auth/endpointOverrides.js";
import { ADVERTISABLE_EXTENSIONS } from "@inspector/core/mcp/extensions.js";
import type { Root } from "@modelcontextprotocol/client";
@ -478,6 +479,8 @@ export function ServerSettingsForm({
clientSecret: settings.oauthClientSecret ?? "",
scopes: settings.oauthScopes ?? "",
authorizationParams,
authorizationUrl: settings.oauthAuthorizationUrl ?? "",
tokenUrl: settings.oauthTokenUrl ?? "",
enterpriseManaged: settings.enterpriseManaged ?? false,
onInsufficientScope: settings.oauthOnInsufficientScope,
};
@ -863,6 +866,55 @@ export function ServerSettingsForm({
+ Add Parameter
</AddButton>
</Stack>
<ClearableTextInput
label="Authorization URL override"
description="Leave blank to use the authorization_endpoint the authorization server's metadata advertises. Set it to point this server at a development or staging authorization server instead."
placeholder="https://staging.auth.example.com/authorize"
value={settings.oauthAuthorizationUrl ?? ""}
error={oauthEndpointUrlError(
settings.oauthAuthorizationUrl ?? "",
)}
onChange={(e) =>
onOAuthChange({
...currentOAuth(),
authorizationUrl: e.currentTarget.value,
})
}
rightSection={
settings.oauthAuthorizationUrl ? (
<ClearButton
onClick={() =>
onOAuthChange({
...currentOAuth(),
authorizationUrl: "",
})
}
/>
) : null
}
/>
<ClearableTextInput
label="Token URL override"
description="Leave blank to use the token_endpoint the authorization server's metadata advertises. Independent of the authorization URL — either can be overridden alone."
placeholder="https://staging.auth.example.com/token"
value={settings.oauthTokenUrl ?? ""}
error={oauthEndpointUrlError(settings.oauthTokenUrl ?? "")}
onChange={(e) =>
onOAuthChange({
...currentOAuth(),
tokenUrl: e.currentTarget.value,
})
}
rightSection={
settings.oauthTokenUrl ? (
<ClearButton
onClick={() =>
onOAuthChange({ ...currentOAuth(), tokenUrl: "" })
}
/>
) : null
}
/>
<Select
label="Insufficient-scope response"
description="On a 403 insufficient_scope challenge (SEP-2350): re-authorize with the accumulated scope union, or surface the error to you."

View file

@ -445,6 +445,52 @@ describe("ServerSettingsModal", () => {
});
});
// #1906 — a typed endpoint override lands on the settings; clearing it
// persists `undefined` rather than an empty string, so "cleared" and "never
// set" are the same state on disk.
it("persists a typed endpoint override, and clears it back to undefined", async () => {
const user = userEvent.setup();
const onSettingsChange = vi.fn();
const { rerender } = renderWithMantine(
<ServerSettingsModal
opened
settings={emptySettings}
serverType="streamable-http"
isStdio={false}
onClose={vi.fn()}
onSettingsChange={onSettingsChange}
/>,
);
await user.click(screen.getByRole("button", { name: "OAuth Settings" }));
await user.type(
screen.getByRole("textbox", { name: /Token URL override/i }),
"h",
);
expect(onSettingsChange).toHaveBeenCalledWith(
expect.objectContaining({ oauthTokenUrl: "h" }),
);
onSettingsChange.mockClear();
rerender(
<ServerSettingsModal
opened
settings={{
...emptySettings,
oauthTokenUrl: "https://staging.test/token",
}}
serverType="streamable-http"
isStdio={false}
onClose={vi.fn()}
onSettingsChange={onSettingsChange}
/>,
);
const clearButtons = screen.getAllByRole("button", { name: /clear/i });
await user.click(clearButtons[clearButtons.length - 1]);
expect(onSettingsChange).toHaveBeenCalledWith(
expect.objectContaining({ oauthTokenUrl: undefined }),
);
});
// #2018 — the authorization-parameter rows ride the same onOAuthChange
// callback, so the modal folds them onto the settings object.
it("persists an added authorization-parameter row onto the settings", async () => {

View file

@ -183,6 +183,11 @@ export function ServerSettingsModal({
// survives a re-render; the drop-blank/omit-empty filtering happens on the
// way to disk. An emptied list persists as `[]`, which writes nothing.
oauthAuthorizationParams: oauth.authorizationParams,
// #1906: an emptied field persists as undefined rather than `""` — the
// read side treats a blank override as "not configured", and keeping the
// two in step means clearing the input really clears the setting.
oauthAuthorizationUrl: oauth.authorizationUrl || undefined,
oauthTokenUrl: oauth.tokenUrl || undefined,
enterpriseManaged: oauth.enterpriseManaged ? true : undefined,
// SEP-2350: persist only the non-default ('throw') so unset servers keep
// the SDK's `reauthorize` behavior without writing a spurious field.