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Commit c15028f

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derrabusnicolas-grekas
authored andcommitted
[Filesystem] Safeguard (sym)link calls
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‎src/Symfony/Component/Filesystem/Filesystem.php

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+14-1Lines changed: 14 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -318,6 +318,8 @@ private function isReadable(string $filename): bool
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*/
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public function symlink($originDir, $targetDir, $copyOnWindows = false)
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{
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self::assertFunctionExists('symlink');
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if ('\\' === \DIRECTORY_SEPARATOR) {
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$originDir = strtr($originDir, '/', '\\');
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$targetDir = strtr($targetDir, '/', '\\');
@@ -354,6 +356,8 @@ public function symlink($originDir, $targetDir, $copyOnWindows = false)
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*/
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public function hardlink($originFile, $targetFiles)
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{
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self::assertFunctionExists('link');
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if (!$this->exists($originFile)) {
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throw new FileNotFoundException(null, 0, null, $originFile);
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}
@@ -737,13 +741,22 @@ private function getSchemeAndHierarchy(string $filename): array
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return 2 === \count($components) ? [$components[0], $components[1]] : [null, $components[0]];
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}
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private static function assertFunctionExists(string $func): void
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{
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if (!\function_exists($func)) {
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throw new IOException(sprintf('Unable to perform filesystem operation because the "%s()" function has been disabled.', $func));
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}
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}
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/**
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* @param mixed ...$args
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*
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* @return mixed
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*/
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private static function box(callable $func, ...$args)
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private static function box(string $func, ...$args)
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{
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self::assertFunctionExists($func);
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self::$lastError = null;
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set_error_handler(__CLASS__.'::handleError');
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try {

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