|
Server : Apache System : Linux cloud.heroica.com.br 4.18.0-553.36.1.el8_10.x86_64 #1 SMP Wed Jan 22 03:07:54 EST 2025 x86_64 User : farolpborg ( 1053) PHP Version : 7.4.33 Disable Function : exec,passthru,shell_exec,system Directory : /var/www/node_services/apimetaexamepopular/node_modules/webpack/lib/util/hash/ |
Upload File : |
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const Hash = require("../Hash");
const MAX_SHORT_STRING = require("./wasm-hash").MAX_SHORT_STRING;
class BatchedHash extends Hash {
/**
* @param {Hash} hash hash
*/
constructor(hash) {
super();
this.string = undefined;
this.encoding = undefined;
this.hash = hash;
}
/**
* Update hash {@link https://nodejs.org/api/crypto.html#crypto_hash_update_data_inputencoding}
* @param {string|Buffer} data data
* @param {string=} inputEncoding data encoding
* @returns {this} updated hash
*/
update(data, inputEncoding) {
if (this.string !== undefined) {
if (
typeof data === "string" &&
inputEncoding === this.encoding &&
this.string.length + data.length < MAX_SHORT_STRING
) {
this.string += data;
return this;
}
this.hash.update(this.string, this.encoding);
this.string = undefined;
}
if (typeof data === "string") {
if (
data.length < MAX_SHORT_STRING &&
// base64 encoding is not valid since it may contain padding chars
(!inputEncoding || !inputEncoding.startsWith("ba"))
) {
this.string = data;
this.encoding = inputEncoding;
} else {
this.hash.update(data, inputEncoding);
}
} else {
this.hash.update(data);
}
return this;
}
/**
* Calculates the digest {@link https://nodejs.org/api/crypto.html#crypto_hash_digest_encoding}
* @param {string=} encoding encoding of the return value
* @returns {string|Buffer} digest
*/
digest(encoding) {
if (this.string !== undefined) {
this.hash.update(this.string, this.encoding);
}
return this.hash.digest(encoding);
}
}
module.exports = BatchedHash;