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[HttpFoundation]  filter out empty HTTP header parts #54910

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Merged
merged 1 commit into from
May 15, 2024
Merged

[HttpFoundation]  filter out empty HTTP header parts #54910

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6 changes: 5 additions & 1 deletion src/Symfony/Component/HttpFoundation/HeaderUtils.php
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Original file line number Diff line number Diff line change
Expand Up @@ -286,7 +286,11 @@ private static function groupParts(array $matches, string $separators, bool $fir
}

foreach ($partMatches as $matches) {
$parts[] = '' === $separators ? self::unquote($matches[0][0]) : self::groupParts($matches, $separators, false);
if ('' === $separators && '' !== $unquoted = self::unquote($matches[0][0])) {
$parts[] = $unquoted;
} elseif ($groupedParts = self::groupParts($matches, $separators, false)) {
$parts[] = $groupedParts;
}
}

return $parts;
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2 changes: 2 additions & 0 deletions src/Symfony/Component/HttpFoundation/Tests/AcceptHeaderTest.php
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Expand Up @@ -41,6 +41,8 @@ public static function provideFromStringData()
{
return [
['', []],
[';;;', []],
['0', [new AcceptHeaderItem('0')]],
['gzip', [new AcceptHeaderItem('gzip')]],
['gzip,deflate,sdch', [new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')]],
["gzip, deflate\t,sdch", [new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')]],
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