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[HttpFoundation] parse cookie values containing the equal sign #39681

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Merged
merged 1 commit into from
Jan 5, 2021
Merged

[HttpFoundation] parse cookie values containing the equal sign #39681

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19 changes: 16 additions & 3 deletions src/Symfony/Component/HttpFoundation/HeaderUtils.php
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Original file line number Diff line number Diff line change
Expand Up @@ -193,30 +193,43 @@ public static function makeDisposition(string $disposition, string $filename, st
return $disposition.'; '.self::toString($params, ';');
}

private static function groupParts(array $matches, string $separators): array
private static function groupParts(array $matches, string $separators, bool $first = true): array
{
$separator = $separators[0];
$partSeparators = substr($separators, 1);

$i = 0;
$partMatches = [];
$previousMatchWasSeparator = false;
foreach ($matches as $match) {
if (isset($match['separator']) && $match['separator'] === $separator) {
if (!$first && $previousMatchWasSeparator && isset($match['separator']) && $match['separator'] === $separator) {
$previousMatchWasSeparator = true;
$partMatches[$i][] = $match;
} elseif (isset($match['separator']) && $match['separator'] === $separator) {
$previousMatchWasSeparator = true;
++$i;
} else {
$previousMatchWasSeparator = false;
$partMatches[$i][] = $match;
}
}

$parts = [];
if ($partSeparators) {
foreach ($partMatches as $matches) {
$parts[] = self::groupParts($matches, $partSeparators);
$parts[] = self::groupParts($matches, $partSeparators, false);
}
} else {
foreach ($partMatches as $matches) {
$parts[] = self::unquote($matches[0][0]);
}

if (!$first && 2 < \count($parts)) {
$parts = [
$parts[0],
implode($separator, \array_slice($parts, 1)),
];
}
}

return $parts;
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6 changes: 6 additions & 0 deletions src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
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Expand Up @@ -227,6 +227,12 @@ public function testFromString()

$cookie = Cookie::fromString('foo', true);
$this->assertEquals(Cookie::create('foo', null, 0, '/', null, false, false, false, null), $cookie);

$cookie = Cookie::fromString('foo_cookie=foo=1&bar=2&baz=3; expires=Tue, 22-Sep-2020 06:27:09 GMT; path=/');
$this->assertEquals(Cookie::create('foo_cookie', 'foo=1&bar=2&baz=3', strtotime('Tue, 22-Sep-2020 06:27:09 GMT'), '/', null, false, false, true, null), $cookie);

$cookie = Cookie::fromString('foo_cookie=foo==; expires=Tue, 22-Sep-2020 06:27:09 GMT; path=/');
$this->assertEquals(Cookie::create('foo_cookie', 'foo==', strtotime('Tue, 22-Sep-2020 06:27:09 GMT'), '/', null, false, false, true, null), $cookie);
}

public function testFromStringWithHttpOnly()
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66 changes: 40 additions & 26 deletions src/Symfony/Component/HttpFoundation/Tests/HeaderUtilsTest.php
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Expand Up @@ -16,33 +16,47 @@

class HeaderUtilsTest extends TestCase
{
public function testSplit()
/**
* @dataProvider provideHeaderToSplit
*/
public function testSplit(array $expected, string $header, string $separator)
{
$this->assertSame($expected, HeaderUtils::split($header, $separator));
}

public function provideHeaderToSplit(): array
{
$this->assertSame(['foo=123', 'bar'], HeaderUtils::split('foo=123,bar', ','));
$this->assertSame(['foo=123', 'bar'], HeaderUtils::split('foo=123, bar', ','));
$this->assertSame([['foo=123', 'bar']], HeaderUtils::split('foo=123; bar', ',;'));
$this->assertSame([['foo=123'], ['bar']], HeaderUtils::split('foo=123, bar', ',;'));
$this->assertSame(['foo', '123, bar'], HeaderUtils::split('foo=123, bar', '='));
$this->assertSame(['foo', '123, bar'], HeaderUtils::split(' foo = 123, bar ', '='));
$this->assertSame([['foo', '123'], ['bar']], HeaderUtils::split('foo=123, bar', ',='));
$this->assertSame([[['foo', '123']], [['bar'], ['foo', '456']]], HeaderUtils::split('foo=123, bar; foo=456', ',;='));
$this->assertSame([[['foo', 'a,b;c=d']]], HeaderUtils::split('foo="a,b;c=d"', ',;='));

$this->assertSame(['foo', 'bar'], HeaderUtils::split('foo,,,, bar', ','));
$this->assertSame(['foo', 'bar'], HeaderUtils::split(',foo, bar,', ','));
$this->assertSame(['foo', 'bar'], HeaderUtils::split(' , foo, bar, ', ','));
$this->assertSame(['foo bar'], HeaderUtils::split('foo "bar"', ','));
$this->assertSame(['foo bar'], HeaderUtils::split('"foo" bar', ','));
$this->assertSame(['foo bar'], HeaderUtils::split('"foo" "bar"', ','));

// These are not a valid header values. We test that they parse anyway,
// and that both the valid and invalid parts are returned.
$this->assertSame([], HeaderUtils::split('', ','));
$this->assertSame([], HeaderUtils::split(',,,', ','));
$this->assertSame(['foo', 'bar', 'baz'], HeaderUtils::split('foo, "bar", "baz', ','));
$this->assertSame(['foo', 'bar, baz'], HeaderUtils::split('foo, "bar, baz', ','));
$this->assertSame(['foo', 'bar, baz\\'], HeaderUtils::split('foo, "bar, baz\\', ','));
$this->assertSame(['foo', 'bar, baz\\'], HeaderUtils::split('foo, "bar, baz\\\\', ','));
return [
[['foo=123', 'bar'], 'foo=123,bar', ','],
[['foo=123', 'bar'], 'foo=123, bar', ','],
[[['foo=123', 'bar']], 'foo=123; bar', ',;'],
[[['foo=123'], ['bar']], 'foo=123, bar', ',;'],
[['foo', '123, bar'], 'foo=123, bar', '='],
[['foo', '123, bar'], ' foo = 123, bar ', '='],
[[['foo', '123'], ['bar']], 'foo=123, bar', ',='],
[[[['foo', '123']], [['bar'], ['foo', '456']]], 'foo=123, bar; foo=456', ',;='],
[[[['foo', 'a,b;c=d']]], 'foo="a,b;c=d"', ',;='],

[['foo', 'bar'], 'foo,,,, bar', ','],
[['foo', 'bar'], ',foo, bar,', ','],
[['foo', 'bar'], ' , foo, bar, ', ','],
[['foo bar'], 'foo "bar"', ','],
[['foo bar'], '"foo" bar', ','],
[['foo bar'], '"foo" "bar"', ','],

[[['foo_cookie', 'foo=1&bar=2&baz=3'], ['expires', 'Tue, 22-Sep-2020 06:27:09 GMT'], ['path', '/']], 'foo_cookie=foo=1&bar=2&baz=3; expires=Tue, 22-Sep-2020 06:27:09 GMT; path=/', ';='],
[[['foo_cookie', 'foo=='], ['expires', 'Tue, 22-Sep-2020 06:27:09 GMT'], ['path', '/']], 'foo_cookie=foo==; expires=Tue, 22-Sep-2020 06:27:09 GMT; path=/', ';='],
[[['foo_cookie', 'foo=a=b'], ['expires', 'Tue, 22-Sep-2020 06:27:09 GMT'], ['path', '/']], 'foo_cookie=foo="a=b"; expires=Tue, 22-Sep-2020 06:27:09 GMT; path=/', ';='],

// These are not a valid header values. We test that they parse anyway,
// and that both the valid and invalid parts are returned.
[[], '', ','],
[[], ',,,', ','],
[['foo', 'bar', 'baz'], 'foo, "bar", "baz', ','],
[['foo', 'bar, baz'], 'foo, "bar, baz', ','],
[['foo', 'bar, baz\\'], 'foo, "bar, baz\\', ','],
[['foo', 'bar, baz\\'], 'foo, "bar, baz\\\\', ','],
];
}

public function testCombine()
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