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Implement symlink for filesystem StreamWrapper with test

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Whether it works or not depends on filesystem though.
This commit is contained in:
nathan 2021-07-09 09:47:12 -06:00 committed by Ralf Becker
parent e7f24461f8
commit f7aef98666
3 changed files with 38 additions and 2 deletions
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30
api/src/Vfs/Filesystem/StreamWrapper.php
View File

@ -298,6 +298,36 @@ class StreamWrapper implements Vfs\StreamWrapperIface
return $this->url_stat($this->opened_stream_url,0);
}
/**
* Method called for symlink()
*
* @param string $target
* @param string $link
* @return boolean true on success false on error
*/
public static function symlink($target,$link)
{
$_target = Vfs::resolve_url($target);
$_link = Vfs::resolve_url($link);
// Check target & link are both filesystem, otherwise it needs to be in Sqlfs
$target_scheme = Vfs::parse_url($_target, PHP_URL_SCHEME);
$link_scheme = Vfs::parse_url($_link, PHP_URL_SCHEME);
if($target_scheme == static::SCHEME && $link_scheme == static::SCHEME)
{
$linked = symlink(
Vfs::parse_url($_target,PHP_URL_PATH),
Vfs::parse_url($_link, PHP_URL_PATH)
);
clearstatcache();
return $linked && is_link($_link);
}
else
{
$sqlfs = new Vfs\Sqlfs\StreamWrapper();
return $sqlfs->symlink($target, $link);
}
}
/**
* This method is called in response to unlink() calls on URL paths associated with the wrapper.
*

6
api/tests/Vfs/Filesystem/StreamWrapperTest.php
View File

@ -43,6 +43,12 @@ class StreamWrapperTest extends Vfs\StreamWrapperBase
$this->markTestSkipped("Filesystem StreamWrapper does not support giving access to a file by changing group permissions");
}
public function testSymlinkFromFolder($test_file = ''): void
{
// Pass a file inside the mountpoint. It doesn't need to exists
parent::testSymlinkFromFolder(static::$mountpoint . '/test');
}
protected function mount(): void
{
$this->mountFilesystem(static::$mountpoint);

4
api/tests/Vfs/StreamWrapperBase.php
View File

@ -354,8 +354,8 @@ abstract class StreamWrapperBase extends LoggedInTest
}
$ns = explode('\\', __NAMESPACE__);
$test_base_dir = $test_file . '/'.array_pop($ns).'/'.$this->getName();
$source_dir = $test_base_dir . "/link_test";
$link_dir = $test_base_dir . "/link_target";
$source_dir = $test_base_dir . "/link_target";
$link_dir = $test_base_dir . "/im_a_symlink";
// Check if backend supports it
$url = Vfs::resolve_url_symlinks($test_base_dir,false,false);