mirror of https://github.com/certd/certd
220 lines
9.0 KiB
JavaScript
220 lines
9.0 KiB
JavaScript
var util = {
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isBrowser: function isBrowser() {
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return process && process.browser;
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},
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isNode: function isNode() {
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return !util.isBrowser();
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},
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uriEscape: function uriEscape(string) {
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var output = encodeURIComponent(string);
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output = output.replace(/[^A-Za-z0-9_.~\-%]+/g, escape);
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// AWS percent-encodes some extra non-standard characters in a URI
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output = output.replace(/[*]/g, function (ch) {
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return "%" + ch.charCodeAt(0).toString(16).toUpperCase();
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});
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return output;
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},
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uriEscapePath: function uriEscapePath(string) {
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var parts = [];
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util.arrayEach(string.split("/"), function (part) {
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parts.push(util.uriEscape(part));
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});
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return parts.join("/");
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},
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abort: {},
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each: function each(object, iterFunction) {
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for (var key in object) {
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if (Object.prototype.hasOwnProperty.call(object, key)) {
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var ret = iterFunction.call(this, key, object[key]);
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if (ret === util.abort) break;
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}
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}
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},
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arrayEach: function arrayEach(array, iterFunction) {
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for (var idx in array) {
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if (Object.prototype.hasOwnProperty.call(array, idx)) {
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var ret = iterFunction.call(this, array[idx], parseInt(idx, 10));
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if (ret === util.abort) break;
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}
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}
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},
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arraySliceFn: function arraySliceFn(obj) {
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var fn = obj.slice || obj.webkitSlice || obj.mozSlice;
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return typeof fn === "function" ? fn : null;
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},
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queryParamsToString: function queryParamsToString(params) {
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var items = [];
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var escape = util.uriEscape;
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var sortedKeys = Object.keys(params).sort();
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util.arrayEach(sortedKeys, function (name) {
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var value = params[name];
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var ename = escape(name);
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var result = ename + "=";
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if (Array.isArray(value)) {
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var vals = [];
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util.arrayEach(value, function (item) {
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vals.push(escape(item));
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});
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result = ename + "=" + vals.sort().join("&" + ename + "=");
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} else if (value !== undefined && value !== null) {
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result = ename + "=" + escape(value);
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}
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items.push(result);
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});
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return items.join("&");
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},
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date: {
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getDate() {
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return new Date();
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},
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iso8601: function iso8601(date) {
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if (date === undefined) {
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date = util.date.getDate();
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}
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return date.toISOString().replace(/\.\d{3}Z$/, "Z");
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},
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},
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crypto: {
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/* eslint-disable no-use-before-define */
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crc32Table: [
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
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0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
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0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
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0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
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0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
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0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
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0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
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0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
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0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
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0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
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0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
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0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
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0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
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0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
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0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
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0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
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0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
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0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
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0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
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0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
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],
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/* eslint-disable no-use-before-define */
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crc32: function crc32(data) {
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var tbl = util.crypto.crc32Table;
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var crc = 0 ^ -1;
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if (typeof data === "string") {
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data = new util.Buffer(data);
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}
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for (var i = 0; i < data.length; i++) {
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var code = data.readUInt8(i);
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crc = (crc >>> 8) ^ tbl[(crc ^ code) & 0xff];
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}
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return (crc ^ -1) >>> 0;
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},
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hmac: function hmac(key, string, digest, fn) {
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if (!digest) digest = "binary";
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if (digest === "buffer") {
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digest = undefined;
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}
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if (!fn) fn = "sha256";
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if (typeof string === "string") string = new util.Buffer(string);
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return util.crypto.lib.createHmac(fn, key).update(string).digest(digest);
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},
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md5: function md5(data, digest, callback) {
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return util.crypto.hash("md5", data, digest, callback);
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},
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sha256: function sha256(data, digest, callback) {
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return util.crypto.hash("sha256", data, digest, callback);
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},
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hash: function (algorithm, data, digest, callback) {
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var hash = util.crypto.createHash(algorithm);
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if (!digest) {
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digest = "binary";
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}
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if (digest === "buffer") {
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digest = undefined;
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}
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if (typeof data === "string") data = new util.Buffer(data);
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var sliceFn = util.arraySliceFn(data);
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var isBuffer = util.Buffer.isBuffer(data);
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// Identifying objects with an ArrayBuffer as buffers
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if (util.isBrowser() && typeof ArrayBuffer !== "undefined" && data && data.buffer instanceof ArrayBuffer) {
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isBuffer = true;
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}
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if (callback && typeof data === "object" && typeof data.on === "function" && !isBuffer) {
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data.on("data", function (chunk) {
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hash.update(chunk);
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});
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data.on("error", function (err) {
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callback(err);
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});
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data.on("end", function () {
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callback(null, hash.digest(digest));
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});
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} else if (callback && sliceFn && !isBuffer && typeof FileReader !== "undefined") {
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// this might be a File/Blob
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var index = 0;
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var size = 1024 * 512;
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var reader = new FileReader();
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reader.onerror = function () {
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callback(new Error("Failed to read data."));
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};
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reader.onload = function () {
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var buf = new util.Buffer(new Uint8Array(reader.result));
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hash.update(buf);
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index += buf.length;
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reader._continueReading();
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};
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reader._continueReading = function () {
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if (index >= data.size) {
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callback(null, hash.digest(digest));
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return;
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}
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var back = index + size;
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if (back > data.size) back = data.size;
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reader.readAsArrayBuffer(sliceFn.call(data, index, back));
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};
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reader._continueReading();
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} else {
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if (util.isBrowser() && typeof data === "object" && !isBuffer) {
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data = new util.Buffer(new Uint8Array(data));
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}
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var out = hash.update(data).digest(digest);
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if (callback) callback(null, out);
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return out;
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}
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},
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toHex: function toHex(data) {
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var out = [];
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for (var i = 0; i < data.length; i++) {
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out.push(("0" + data.charCodeAt(i).toString(16)).substr(-2, 2));
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}
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return out.join("");
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},
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createHash: function createHash(algorithm) {
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return util.crypto.lib.createHash(algorithm);
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},
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},
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};
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module.exports = util;
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