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metamask-extension/app/scripts/controllers/permissions/flask/snap-permissions.js

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import { endowmentPermissionBuilders } from '@metamask/snaps-controllers';
import {
restrictedMethodPermissionBuilders,
selectHooks,
} from '@metamask/rpc-methods';
import {
ExcludedSnapEndowments,
ExcludedSnapPermissions,
} from '../../../../../shared/constants/permissions';
/**
* @returns {Record<string, Record<string, unknown>>} All endowment permission
* specifications.
*/
export const buildSnapEndowmentSpecifications = () =>
Object.values(endowmentPermissionBuilders).reduce(
(allSpecifications, { targetKey, specificationBuilder }) => {
if (!Object.keys(ExcludedSnapEndowments).includes(targetKey)) {
allSpecifications[targetKey] = specificationBuilder();
}
return allSpecifications;
},
{},
);
/**
* @param {Record<string, Function>} hooks - The hooks for the Snap
* restricted method implementations.
*/
export const buildSnapRestrictedMethodSpecifications = (hooks) =>
Object.values(restrictedMethodPermissionBuilders).reduce(
(specifications, { targetKey, specificationBuilder, methodHooks }) => {
if (!Object.keys(ExcludedSnapPermissions).includes(targetKey)) {
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specifications[targetKey] = specificationBuilder({
methodHooks: selectHooks(hooks, methodHooks),
});
}
return specifications;
},
{},
);