/usr/lib/nodejs/range-parser/index.js is in node-range-parser 0.0.4+git7d1cd72a-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | /**
* Parse "Range" header `str` relative to the given file `size`.
*
* @param {Number} size
* @param {String} str
* @return {Array}
* @api public
*/
module.exports = function(size, str){
var valid = true;
var i = str.indexOf('=');
if (-1 == i) return -2;
var arr = str.slice(i + 1).split(',').map(function(range){
var range = range.split('-')
, start = parseInt(range[0], 10)
, end = parseInt(range[1], 10);
// -nnn
if (isNaN(start)) {
start = size - end;
end = size - 1;
// nnn-
} else if (isNaN(end)) {
end = size - 1;
}
// limit last-byte-pos to current length
if (end > size - 1) end = size - 1;
// invalid
if (isNaN(start)
|| isNaN(end)
|| start > end
|| start < 0) valid = false;
return {
start: start,
end: end
};
});
arr.type = str.slice(0, i);
return valid ? arr : -1;
};
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