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Also allow embedders to intercept TT calls in the worker

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Alex Dima 2023-06-02 12:41:01 +02:00
parent 1331522372
commit c75969885c
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GPG key ID: 39563C1504FDD0C9
1 changed files with 43 additions and 18 deletions
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61
src/vs/base/worker/workerMain.ts
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@ -5,25 +5,50 @@
(function () {
const MonacoEnvironment = (<any>globalThis).MonacoEnvironment;
const monacoBaseUrl = MonacoEnvironment && MonacoEnvironment.baseUrl ? MonacoEnvironment.baseUrl : '../../../';
interface IMonacoEnvironment {
baseUrl?: string;
createTrustedTypesPolicy<Options extends TrustedTypePolicyOptions>(
policyName: string,
policyOptions?: Options,
): undefined | Pick<TrustedTypePolicy<Options>, 'name' | Extract<keyof Options, keyof TrustedTypePolicyOptions>>;
}
const monacoEnvironment: IMonacoEnvironment | undefined = (globalThis as any).MonacoEnvironment;
const monacoBaseUrl = monacoEnvironment && monacoEnvironment.baseUrl ? monacoEnvironment.baseUrl : '../../../';
const trustedTypesPolicy = (
typeof self.trustedTypes?.createPolicy === 'function'
? self.trustedTypes?.createPolicy('amdLoader', {
createScriptURL: value => value,
createScript: (_, ...args: string[]) => {
// workaround a chrome issue not allowing to create new functions
// see https://github.com/w3c/webappsec-trusted-types/wiki/Trusted-Types-for-function-constructor
const fnArgs = args.slice(0, -1).join(',');
const fnBody = args.pop()!.toString();
// Do not add a new line to fnBody, as this will confuse source maps.
const body = `(function anonymous(${fnArgs}) { ${fnBody}\n})`;
return body;
}
})
: undefined
);
function createTrustedTypesPolicy<Options extends TrustedTypePolicyOptions>(
policyName: string,
policyOptions?: Options,
): undefined | Pick<TrustedTypePolicy<Options>, 'name' | Extract<keyof Options, keyof TrustedTypePolicyOptions>> {
if (monacoEnvironment?.createTrustedTypesPolicy) {
try {
return monacoEnvironment.createTrustedTypesPolicy(policyName, policyOptions);
} catch (err) {
console.warn(err);
return undefined;
}
}
try {
return self.trustedTypes?.createPolicy(policyName, policyOptions);
} catch (err) {
console.warn(err);
return undefined;
}
}
const trustedTypesPolicy = createTrustedTypesPolicy('amdLoader', {
createScriptURL: value => value,
createScript: (_, ...args: string[]) => {
// workaround a chrome issue not allowing to create new functions
// see https://github.com/w3c/webappsec-trusted-types/wiki/Trusted-Types-for-function-constructor
const fnArgs = args.slice(0, -1).join(',');
const fnBody = args.pop()!.toString();
// Do not add a new line to fnBody, as this will confuse source maps.
const body = `(function anonymous(${fnArgs}) { ${fnBody}\n})`;
return body;
}
});
function canUseEval(): boolean {
try {