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fix: multi-byte character corruption when converting Buffers to strings (#3100)

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* add tests for multi-byte character buffer
* support multi-byte characters when decoding buffers

fixes: #2993
This commit is contained in:
Bob Burden III
2025-10-13 06:19:45 -04:00
committed by GitHub
parent 96d6445d66
commit d7c6544d3a
2 changed files with 19 additions and 6 deletions
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15
packages/client/lib/RESP/decoder.spec.ts
View File

@@ -226,6 +226,11 @@ describe('RESP Decoder', () => {
toWrite: Buffer.from('+OK\r\n'),
replies: [Buffer.from('OK')]
});
test("'é'", {
toWrite: Buffer.from('+é\r\n'),
replies: ['é']
});
});
describe('BlobString', () => {
@@ -251,6 +256,11 @@ describe('RESP Decoder', () => {
toWrite: Buffer.from('$2\r\nOK\r\n'),
replies: [Buffer.from('OK')]
});
test("'é'", {
toWrite: Buffer.from('$2\r\né\r\n'),
replies: ['é']
});
});
describe('VerbatimString', () => {
@@ -279,6 +289,11 @@ describe('RESP Decoder', () => {
toWrite: Buffer.from('=6\r\ntxt:OK\r\n'),
replies: [Buffer.from('OK')]
});
test("'é'", {
toWrite: Buffer.from('=6\r\ntxt:é\r\n'),
replies: ['é']
});
});
test('SimpleError', {

10
packages/client/lib/RESP/decoder.ts
View File

@@ -506,9 +506,8 @@ export class Decoder {
}
chunks.push(chunk.subarray(start, crlfIndex));
return type === Buffer ?
Buffer.concat(chunks) :
chunks.join('');
const buffer = Buffer.concat(chunks);
return type === Buffer ? buffer : buffer.toString();
}
#decodeBlobString(type, chunk) {
@@ -578,9 +577,8 @@ export class Decoder {
chunks.push(chunk.subarray(this.#cursor, end));
this.#cursor = end + skip;
return type === Buffer ?
Buffer.concat(chunks) :
chunks.join('');
const buffer = Buffer.concat(chunks);
return type === Buffer ? buffer : buffer.toString();
}
#decodeBlobStringWithLength(length, type, chunk) {