зеркало из https://github.com/mozilla/gecko-dev.git
106 строки
3.2 KiB
JavaScript
106 строки
3.2 KiB
JavaScript
"use strict";
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function run_test() {
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test_base64URLEncode();
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test_base64URLDecode();
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}
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// Test vectors from RFC 4648, section 10.
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let textTests = {
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"": "",
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"f": "Zg",
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"fo": "Zm8",
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"foo": "Zm9v",
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"foob": "Zm9vYg",
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"fooba": "Zm9vYmE",
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"foobar": "Zm9vYmFy",
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}
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// Examples from RFC 4648, section 9.
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let binaryTests = [{
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decoded: new Uint8Array([0x14, 0xfb, 0x9c, 0x03, 0xd9, 0x7e]),
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encoded: "FPucA9l-",
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}, {
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decoded: new Uint8Array([0x14, 0xfb, 0x9c, 0x03, 0xd9]),
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encoded: "FPucA9k",
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}, {
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decoded: new Uint8Array([0x14, 0xfb, 0x9c, 0x03]),
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encoded: "FPucAw",
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}];
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function padEncodedValue(value) {
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switch (value.length % 4) {
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case 0:
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return value;
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case 2:
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return value + "==";
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case 3:
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return value + "=";
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default:
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throw new TypeError("Invalid encoded value");
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}
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}
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function testEncode(input, encoded) {
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equal(ChromeUtils.base64URLEncode(input, { pad: false }),
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encoded, encoded + " without padding");
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equal(ChromeUtils.base64URLEncode(input, { pad: true }),
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padEncodedValue(encoded), encoded + " with padding");
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}
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function test_base64URLEncode() {
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throws(_ => ChromeUtils.base64URLEncode(new Uint8Array(0)), /TypeError/,
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"Should require encoding options");
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throws(_ => ChromeUtils.base64URLEncode(new Uint8Array(0), {}), /TypeError/,
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"Encoding should require the padding option");
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for (let {decoded, encoded} of binaryTests) {
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testEncode(decoded, encoded);
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}
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let textEncoder = new TextEncoder("utf-8");
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for (let decoded of Object.keys(textTests)) {
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let input = textEncoder.encode(decoded);
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testEncode(input, textTests[decoded]);
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}
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}
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function testDecode(input, decoded) {
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let buffer = ChromeUtils.base64URLDecode(input, { padding: "reject" });
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deepEqual(new Uint8Array(buffer), decoded, input + " with padding rejected");
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let paddedValue = padEncodedValue(input);
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buffer = ChromeUtils.base64URLDecode(paddedValue, { padding: "ignore" });
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deepEqual(new Uint8Array(buffer), decoded, input + " with padding ignored");
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if (paddedValue.length > input.length) {
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throws(_ => ChromeUtils.base64URLDecode(paddedValue, { padding: "reject" }),
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paddedValue + " with padding rejected should throw");
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throws(_ => ChromeUtils.base64URLDecode(input, { padding: "require" }),
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input + " with padding required should throw");
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buffer = ChromeUtils.base64URLDecode(paddedValue, { padding: "require" });
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deepEqual(new Uint8Array(buffer), decoded, paddedValue + " with padding required");
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}
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}
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function test_base64URLDecode() {
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throws(_ => ChromeUtils.base64URLDecode(""), /TypeError/,
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"Should require decoding options");
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throws(_ => ChromeUtils.base64URLDecode("", {}), /TypeError/,
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"Decoding should require the padding option");
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throws(_ => ChromeUtils.base64URLDecode("", { padding: "chocolate" }),
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"Decoding should throw for invalid padding policy");
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for (let {decoded, encoded} of binaryTests) {
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testDecode(encoded, decoded);
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}
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let textEncoder = new TextEncoder("utf-8");
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for (let decoded of Object.keys(textTests)) {
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let expectedBuffer = textEncoder.encode(decoded);
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testDecode(textTests[decoded], expectedBuffer);
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}
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}
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