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escape.js	1.35 MB	View DL Edit
readShebang.js	549 B	View DL Edit
resolveCommand.js	1.52 MB	View DL Edit

Edit file: /home/benbot/bot/server/node_modules/cross-spawn/lib/util/escape.js

'use strict';

// See http://www.robvanderwoude.com/escapechars.php
const metaCharsRegExp = /([()\][%!^"`<>&|;, *?])/g;

function escapeCommand(arg) {
    // Escape meta chars
    arg = arg.replace(metaCharsRegExp, '^$1');

return arg;
}

function escapeArgument(arg, doubleEscapeMetaChars) {
    // Convert to string
    arg = `${arg}`;

// Algorithm below is based on https://qntm.org/cmd
    // It's slightly altered to disable JS backtracking to avoid hanging on specially crafted input
    // Please see https://github.com/moxystudio/node-cross-spawn/pull/160 for more information

// Sequence of backslashes followed by a double quote:
    // double up all the backslashes and escape the double quote
    arg = arg.replace(/(?=(\\+?)?)\1"/g, '$1$1\\"');

// Sequence of backslashes followed by the end of the string
    // (which will become a double quote later):
    // double up all the backslashes
    arg = arg.replace(/(?=(\\+?)?)\1$/, '$1$1');

// All other backslashes occur literally

// Quote the whole thing:
    arg = `"${arg}"`;

// Escape meta chars
    arg = arg.replace(metaCharsRegExp, '^$1');

// Double escape meta chars if necessary
    if (doubleEscapeMetaChars) {
        arg = arg.replace(metaCharsRegExp, '^$1');
    }

return arg;
}

module.exports.command = escapeCommand;
module.exports.argument = escapeArgument;

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