node_modules/mysql2/lib/auth_plugins/mysql_native_password.js


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'use strict';

//const PLUGIN_NAME = 'mysql_native_password';
const auth41 = require('../auth_41.js');

module.exports = pluginOptions => ({ connection, command }) => {
  const password =
    command.password || pluginOptions.password || connection.config.password;
  const passwordSha1 =
    command.passwordSha1 ||
    pluginOptions.passwordSha1 ||
    connection.config.passwordSha1;
  return data => {
    const authPluginData1 = data.slice(0, 8);
    const authPluginData2 = data.slice(8, 20);
    let authToken;
    if (passwordSha1) {
      authToken = auth41.calculateTokenFromPasswordSha(
        passwordSha1,
        authPluginData1,
        authPluginData2
      );
    } else {
      authToken = auth41.calculateToken(
        password,
        authPluginData1,
        authPluginData2
      );
    }
    return authToken;
  };
};