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url: use resolved path to convert to fileURL #56302

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url: use resolved path to convert to fileURL #56302

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16 changes: 8 additions & 8 deletions lib/internal/url.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1512,32 +1512,32 @@ function fileURLToPath(path, options = kEmptyObject) {

function pathToFileURL(filepath, options = kEmptyObject) {
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filepathOriginal or filepathUnresolved

const windows = options?.windows ?? isWindows;
if (windows && StringPrototypeStartsWith(filepath, '\\\\')) {
let resolved = windows ? path.win32.resolve(filepath) : path.posix.resolve(filepath);
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Instead of introducing a new variable named resolved and renaming the existing parameter filepath, rename the input parameter to filepathOriginal and create a new variable filepath for the modified version of the original path.

Suggested change
let resolved = windows ? path.win32.resolve(filepath) : path.posix.resolve(filepath);
let filepath = windows ? path.win32.resolve(filepathOriginal) : path.posix.resolve(filepathOriginal);

if (windows && StringPrototypeStartsWith(resolved, '\\\\')) {
// UNC path format: \\server\share\resource
// Handle extended UNC path and standard UNC path
// "\\?\UNC\" path prefix should be ignored.
// Ref: https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation
const isExtendedUNC = StringPrototypeStartsWith(filepath, '\\\\?\\UNC\\');
const isExtendedUNC = StringPrototypeStartsWith(resolved, '\\\\?\\UNC\\');
const prefixLength = isExtendedUNC ? 8 : 2;
const hostnameEndIndex = StringPrototypeIndexOf(filepath, '\\', prefixLength);
const hostnameEndIndex = StringPrototypeIndexOf(resolved, '\\', prefixLength);
if (hostnameEndIndex === -1) {
throw new ERR_INVALID_ARG_VALUE(
'path',
filepath,
resolved,
'Missing UNC resource path',
);
}
if (hostnameEndIndex === 2) {
throw new ERR_INVALID_ARG_VALUE(
'path',
filepath,
resolved,
'Empty UNC servername',
);
}
const hostname = StringPrototypeSlice(filepath, prefixLength, hostnameEndIndex);
return new URL(StringPrototypeSlice(filepath, hostnameEndIndex), hostname, kCreateURLFromWindowsPathSymbol);
const hostname = StringPrototypeSlice(resolved, prefixLength, hostnameEndIndex);
return new URL(StringPrototypeSlice(resolved, hostnameEndIndex), hostname, kCreateURLFromWindowsPathSymbol);
}
let resolved = windows ? path.win32.resolve(filepath) : path.posix.resolve(filepath);
// path.resolve strips trailing slashes so we must add them back
const filePathLast = StringPrototypeCharCodeAt(filepath,
filepath.length - 1);
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