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78 lines
1.8 KiB
JavaScript
78 lines
1.8 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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var util = {
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// Compare the contents of two ArrayBuffer(View)s
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memcmp: function util_memcmp(x, y) {
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if (!x || !y) { return false; }
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var xb = new Uint8Array(x);
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var yb = new Uint8Array(y);
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if (x.byteLength !== y.byteLength) { return false; }
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for (var i=0; i<xb.byteLength; ++i) {
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if (xb[i] !== yb[i]) {
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return false;
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}
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}
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return true;
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},
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// Convert an ArrayBufferView to a hex string
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abv2hex: function util_abv2hex(abv) {
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var b = new Uint8Array(abv.buffer, abv.byteOffset, abv.byteLength);
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var hex = "";
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for (var i=0; i <b.length; ++i) {
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var zeropad = (b[i] < 0x10) ? "0" : "";
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hex += zeropad + b[i].toString(16);
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}
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return hex;
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},
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// Convert a hex string to an ArrayBufferView
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hex2abv: function util_hex2abv(hex) {
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if (hex.length % 2 !== 0) {
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hex = "0" + hex;
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}
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var abv = new Uint8Array(hex.length / 2);
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for (var i=0; i<abv.length; ++i) {
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abv[i] = parseInt(hex.substr(2*i, 2), 16);
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}
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return abv;
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},
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};
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function exists(x) {
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return (x !== undefined);
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}
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function hasFields(object, fields) {
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return fields
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.map(x => exists(object[x]))
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.reduce((x,y) => (x && y));
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}
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function hasKeyFields(x) {
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return hasFields(x, ["algorithm", "extractable", "type", "usages"]);
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}
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function hasBaseJwkFields(x) {
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return hasFields(x, ["kty", "alg", "ext", "key_ops"]);
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}
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function shallowArrayEquals(x, y) {
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if (x.length != y.length) {
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return false;
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}
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for (i in x) {
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if (x[i] != y[i]) {
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return false;
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}
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}
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return true;
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}
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