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url: encode null character at the end of file path #54066

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url: encode null character at the end of file path #54066

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6 changes: 6 additions & 0 deletions lib/internal/url.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ const {
StringPrototypeCharAt,
StringPrototypeCharCodeAt,
StringPrototypeCodePointAt,
StringPrototypeEndsWith,
StringPrototypeIncludes,
StringPrototypeIndexOf,
StringPrototypeSlice,
Expand Down Expand Up @@ -1511,13 +1512,16 @@ function fileURLToPath(path, options = kEmptyObject) {
// - CR: The carriage return character is also stripped out by the `pathname`
// setter.
// - TAB: The tab character is also stripped out by the `pathname` setter.
// - NULL: The null character is stripped out by the `URL` constructor.

const percentRegEx = /%/g;
const backslashRegEx = /\\/g;
const newlineRegEx = /\n/g;
const carriageReturnRegEx = /\r/g;
const tabRegEx = /\t/g;
const questionRegex = /\?/g;
const hashRegex = /#/g;
const nullRegex = /\0$/;

function encodePathChars(filepath, options = kEmptyObject) {
const windows = options?.windows;
Expand All @@ -1532,6 +1536,8 @@ function encodePathChars(filepath, options = kEmptyObject) {
filepath = RegExpPrototypeSymbolReplace(carriageReturnRegEx, filepath, '%0D');
if (StringPrototypeIndexOf(filepath, '\t') !== -1)
filepath = RegExpPrototypeSymbolReplace(tabRegEx, filepath, '%09');
if (StringPrototypeEndsWith(filepath, '\0'))
filepath = RegExpPrototypeSymbolReplace(nullRegex, filepath, '%00');
return filepath;
}

Expand Down