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fs: fix pre-aborted writeFile AbortSignal file leak #37393

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merged 1 commit into from
Feb 26, 2021
Merged

fs: fix pre-aborted writeFile AbortSignal file leak #37393

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12 changes: 10 additions & 2 deletions lib/internal/fs/promises.js
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@ const {
const { opendir } = require('internal/fs/dir');
const {
parseFileMode,
validateAbortSignal,
validateBoolean,
validateBuffer,
validateInteger,
Expand Down Expand Up @@ -668,14 +669,17 @@ async function writeFile(path, data, options) {
data = Buffer.from(data, options.encoding || 'utf8');
}

validateAbortSignal(options.signal);
if (path instanceof FileHandle)
return writeFileHandle(path, data, options.signal);

const fd = await open(path, flag, options.mode);
if (options.signal?.aborted) {
throw lazyDOMException('The operation was aborted', 'AbortError');
}
return PromisePrototypeFinally(writeFileHandle(fd, data), fd.close);

const fd = await open(path, flag, options.mode);
const { signal } = options;
return PromisePrototypeFinally(writeFileHandle(fd, data, signal), fd.close);
}

async function appendFile(path, data, options) {
Expand All @@ -692,6 +696,10 @@ async function readFile(path, options) {
if (path instanceof FileHandle)
return readFileHandle(path, options);

if (options.signal?.aborted) {
throw lazyDOMException('The operation was aborted', 'AbortError');
}

const fd = await open(path, flag, 0o666);
return PromisePrototypeFinally(readFileHandle(fd, options), fd.close);
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}
Expand Down