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import { BrowseAccessTokensSchema } from './schema-readonly';
import { ManageAccessTokenSchema } from './schema';
import { gitlab, toQuery } from '../../utils/gitlab-api';
import { ToolRegistry, EnhancedToolDefinition } from '../../types';
import { assertActionAllowed, GITLAB_MAX_PER_PAGE } from '../utils';
import { instanceAtLeast } from '../instance-version';
// Personal/project/group access tokens are Free tier; every endpoint used here
// predates the supported version floor.
const FREE_REQ = { tier: 'free' } as const;
/** A project/group token list page; `active` drives the client-side state filter. */
const ListedTokensSchema = z.array(z.looseObject({ active: z.boolean() }));
/**
* List project/group tokens, honouring `state`. The server-side filter landed in
* GitLab 17.2 (older instances ignore it and return every token), so there it is
* applied client-side on each token's `active` flag, before pagination: GitLab's
* pages are walked until the requested filtered page is complete or the list ends.
*/
async function listScopedTokens(
path: string,
query: { state?: 'active' | 'inactive'; per_page: number; page?: number },
) {
const { state, per_page: perPage, page = 1 } = query;
if (!state || instanceAtLeast('17.2')) {
return gitlab.get(path, { query: toQuery(query, []) });
}
const wanted = page * perPage;
const matches: Array<z.infer<typeof ListedTokensSchema>[number]> = [];
for (let serverPage = 1; matches.length < wanted; serverPage++) {
const parsed = ListedTokensSchema.safeParse(
await gitlab.get(path, {
query: toQuery({ per_page: GITLAB_MAX_PER_PAGE, page: serverPage }, []),
}),
);
if (!parsed.success) {
throw new Error(
`GitLab API error: unexpected access tokens response (${parsed.error.issues[0]?.message ?? 'invalid'})`,
);
}
const batch = parsed.data;
for (const token of batch) {
if (token.active === (state === 'active')) matches.push(token);
}
if (batch.length < GITLAB_MAX_PER_PAGE) break;
}
return matches.slice(wanted - perPage, wanted);
}
const NEW_TOKEN_NOTICE =
'This response contains a token value shown only once. Store it securely; it cannot be retrieved again.';
/**
* Wrap a create/rotate response so the secret it carries is explicitly flagged.
* The result is serialized to the tool output, so the marker travels with it.
*/
function flagSensitive(response: unknown): unknown {
Eif (response && typeof response === 'object') {
return {
...(response as Record<string, unknown>),
_meta: { sensitive: true, notice: NEW_TOKEN_NOTICE },
};
}
return response;
}
/**
* Resolve the REST collection path for a single-token action (get/rotate/revoke).
* A token belongs to exactly one scope: project, group, or the current user.
*/
function tokenBasePath(input: { project_id?: string; group_id?: string }): string {
if (input.project_id) {
return `projects/${encodeURIComponent(input.project_id)}/access_tokens`;
}
if (input.group_id) {
return `groups/${encodeURIComponent(input.group_id)}/access_tokens`;
}
return 'personal_access_tokens';
}
/**
* Access-tokens tools registry - 2 CQRS tools.
*
* browse_access_tokens (Query): list_personal, list_project, list_group, get
* manage_access_token (Command): create_project, create_group, rotate, revoke
*
* Backed by the GitLab REST access-token endpoints (no GraphQL surface exists).
* The personal/project/group scopes fold in as actions; get/rotate/revoke infer
* the scope from project_id / group_id. Gated behind USE_ACCESS_TOKENS. Free tier;
* project/group creation requires owner/admin on the namespace.
*/
export const accessTokensToolRegistry: ToolRegistry = new Map<string, EnhancedToolDefinition>([
// ============================================================================
// browse_access_tokens - CQRS Query Tool
// ============================================================================
[
'browse_access_tokens',
{
name: 'browse_access_tokens',
description:
"Inspect access tokens (CI/automation credentials). Actions: list_personal (the current user's PATs; admins may filter by user_id), list_project / list_group (a project's or group's tokens), get (a single token by ID - pass project_id or group_id for project/group tokens, neither for personal). Related: manage_access_token to create, rotate, or revoke.",
inputSchema: z.toJSONSchema(BrowseAccessTokensSchema),
requirements: { default: FREE_REQ },
gate: { envVar: 'USE_ACCESS_TOKENS', defaultValue: true },
handler: async (args: unknown): Promise<unknown> => {
const input = BrowseAccessTokensSchema.parse(args);
assertActionAllowed('browse_access_tokens', input.action);
switch (input.action) {
case 'list_personal': {
const { action: _action, ...query } = input;
return gitlab.get('personal_access_tokens', { query: toQuery(query, []) });
}
case 'list_project': {
const { action: _action, project_id, ...query } = input;
return listScopedTokens(
`projects/${encodeURIComponent(project_id)}/access_tokens`,
query,
);
}
case 'list_group': {
const { action: _action, group_id, ...query } = input;
return listScopedTokens(`groups/${encodeURIComponent(group_id)}/access_tokens`, query);
}
case 'get':
return gitlab.get(`${tokenBasePath(input)}/${input.token_id}`);
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
// ============================================================================
// manage_access_token - CQRS Command Tool
// ============================================================================
[
'manage_access_token',
{
name: 'manage_access_token',
description:
'Create, rotate, or revoke access tokens. Actions: create_project / create_group (issue a new token with name + scopes, returns the value once), rotate (revoke the old token and return a new value), revoke (delete a token permanently). For rotate/revoke pass project_id or group_id for project/group tokens, neither for personal. Related: browse_access_tokens to discover token IDs.',
inputSchema: z.toJSONSchema(ManageAccessTokenSchema),
requirements: { default: FREE_REQ },
gate: { envVar: 'USE_ACCESS_TOKENS', defaultValue: true },
handler: async (args: unknown): Promise<unknown> => {
const input = ManageAccessTokenSchema.parse(args);
assertActionAllowed('manage_access_token', input.action);
switch (input.action) {
case 'create_project': {
const { action: _action, project_id, ...body } = input;
const res = await gitlab.post(
`projects/${encodeURIComponent(project_id)}/access_tokens`,
{ body, contentType: 'json' },
);
return flagSensitive(res);
}
case 'create_group': {
const { action: _action, group_id, ...body } = input;
const res = await gitlab.post(`groups/${encodeURIComponent(group_id)}/access_tokens`, {
body,
contentType: 'json',
});
return flagSensitive(res);
}
case 'rotate': {
const body = input.expires_at ? { expires_at: input.expires_at } : {};
const res = await gitlab.post(`${tokenBasePath(input)}/${input.token_id}/rotate`, {
body,
contentType: 'json',
});
return flagSensitive(res);
}
case 'revoke': {
await gitlab.delete(`${tokenBasePath(input)}/${input.token_id}`);
return { revoked: true, token_id: input.token_id };
}
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
]);
/** Read-only tool names from the registry (for read-only mode filtering). */
export function getAccessTokensReadOnlyToolNames(): string[] {
return ['browse_access_tokens'];
}
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