23 lines
1.3 KiB
JavaScript
23 lines
1.3 KiB
JavaScript
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import { getChecksum } from "./getChecksum";
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import { getChecksumAlgorithmListForResponse } from "./getChecksumAlgorithmListForResponse";
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import { getChecksumLocationName } from "./getChecksumLocationName";
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import { selectChecksumAlgorithmFunction } from "./selectChecksumAlgorithmFunction";
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export const validateChecksumFromResponse = async (response, { config, responseAlgorithms }) => {
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const checksumAlgorithms = getChecksumAlgorithmListForResponse(responseAlgorithms);
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const { body: responseBody, headers: responseHeaders } = response;
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for (const algorithm of checksumAlgorithms) {
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const responseHeader = getChecksumLocationName(algorithm);
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const checksumFromResponse = responseHeaders[responseHeader];
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if (checksumFromResponse) {
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const checksumAlgorithmFn = selectChecksumAlgorithmFunction(algorithm, config);
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const { streamHasher, base64Encoder } = config;
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const checksum = await getChecksum(responseBody, { streamHasher, checksumAlgorithmFn, base64Encoder });
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if (checksum === checksumFromResponse) {
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break;
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}
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throw new Error(`Checksum mismatch: expected "${checksum}" but received "${checksumFromResponse}"` +
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` in response header "${responseHeader}".`);
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}
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}
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};
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