| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.getPayloadHash = void 0;
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| 4 | const is_array_buffer_1 = require("@aws-sdk/is-array-buffer");
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| 5 | const util_hex_encoding_1 = require("@aws-sdk/util-hex-encoding");
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| 6 | const util_utf8_1 = require("@aws-sdk/util-utf8");
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| 7 | const constants_1 = require("./constants");
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| 8 | const getPayloadHash = async ({ headers, body }, hashConstructor) => {
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| 9 | for (const headerName of Object.keys(headers)) {
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| 10 | if (headerName.toLowerCase() === constants_1.SHA256_HEADER) {
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| 11 | return headers[headerName];
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| 12 | }
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| 13 | }
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| 14 | if (body == undefined) {
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| 15 | return "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";
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| 16 | }
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| 17 | else if (typeof body === "string" || ArrayBuffer.isView(body) || (0, is_array_buffer_1.isArrayBuffer)(body)) {
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| 18 | const hashCtor = new hashConstructor();
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| 19 | hashCtor.update((0, util_utf8_1.toUint8Array)(body));
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| 20 | return (0, util_hex_encoding_1.toHex)(await hashCtor.digest());
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| 21 | }
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| 22 | return constants_1.UNSIGNED_PAYLOAD;
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| 23 | };
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| 24 | exports.getPayloadHash = getPayloadHash;
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