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Repair broken parent link in the scanner

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This commit is contained in:
Robin Appelman 2014-06-10 15:26:18 +02:00
parent ecc41fe0c3
commit 21cfd1014a
2 changed files with 85 additions and 36 deletions
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70
lib/private/files/cache/scanner.php vendored
View file

@ -100,45 +100,47 @@ class Scanner extends BasicEmitter {
\OC_Hook::emit('\OC\Files\Cache\Scanner', 'scan_file', array('path' => $file, 'storage' => $this->storageId));
$data = $this->getData($file);
if ($data) {
if ($file and !$parentExistsInCache) {
$parent = dirname($file);
if ($parent === '.' or $parent === '/') {
$parent = '';
}
if (!$this->cache->inCache($parent)) {
$this->scanFile($parent);
}
$parent = dirname($file);
if ($parent === '.' or $parent === '/') {
$parent = '';
}
$parentId = $this->cache->getId($parent);
if ($file and $parentId === -1) {
$parentData = $this->scanFile($parent);
$parentId = $parentData['fileid'];
}
if ($parent) {
$data['parent'] = $parentId;
}
$newData = $data;
$cacheData = $this->cache->get($file);
if ($cacheData) {
if ($reuseExisting) {
// prevent empty etag
if (empty($cacheData['etag'])) {
$etag = $data['etag'];
} else {
$etag = $cacheData['etag'];
if ($cacheData and $reuseExisting) {
// prevent empty etag
if (empty($cacheData['etag'])) {
$etag = $data['etag'];
} else {
$etag = $cacheData['etag'];
}
// only reuse data if the file hasn't explicitly changed
if (isset($data['storage_mtime']) && isset($cacheData['storage_mtime']) && $data['storage_mtime'] === $cacheData['storage_mtime']) {
$data['mtime'] = $cacheData['mtime'];
if (($reuseExisting & self::REUSE_SIZE) && ($data['size'] === -1)) {
$data['size'] = $cacheData['size'];
}
// only reuse data if the file hasn't explicitly changed
if (isset($data['storage_mtime']) && isset($cacheData['storage_mtime']) && $data['storage_mtime'] === $cacheData['storage_mtime']) {
$data['mtime'] = $cacheData['mtime'];
if (($reuseExisting & self::REUSE_SIZE) && ($data['size'] === -1)) {
$data['size'] = $cacheData['size'];
}
if ($reuseExisting & self::REUSE_ETAG) {
$data['etag'] = $etag;
}
}
// Only update metadata that has changed
$newData = array_diff_assoc($data, $cacheData);
if (isset($newData['etag'])) {
$cacheDataString = print_r($cacheData, true);
$dataString = print_r($data, true);
\OCP\Util::writeLog('OC\Files\Cache\Scanner',
"!!! No reuse of etag for '$file' !!! \ncache: $cacheDataString \ndata: $dataString",
\OCP\Util::DEBUG);
if ($reuseExisting & self::REUSE_ETAG) {
$data['etag'] = $etag;
}
}
// Only update metadata that has changed
$newData = array_diff_assoc($data, $cacheData);
if (isset($newData['etag'])) {
$cacheDataString = print_r($cacheData, true);
$dataString = print_r($data, true);
\OCP\Util::writeLog('OC\Files\Cache\Scanner',
"!!! No reuse of etag for '$file' !!! \ncache: $cacheDataString \ndata: $dataString",
\OCP\Util::DEBUG);
}
} else {
$newData = $data;
}
if (!empty($newData)) {
$data['fileid'] = $this->addToCache($file, $newData);

51
tests/lib/files/cache/scanner.php vendored
View file

@ -32,7 +32,6 @@ class Scanner extends \PHPUnit_Framework_TestCase {
function tearDown() {
if ($this->cache) {
$ids = $this->cache->getAll();
$this->cache->clear();
}
}
@ -199,7 +198,7 @@ class Scanner extends \PHPUnit_Framework_TestCase {
$this->assertFalse($this->cache->inCache('folder/bar.txt'));
}
public function testScanRemovedFile(){
public function testScanRemovedFile() {
$this->fillTestFolders();
$this->scanner->scan('');
@ -233,4 +232,52 @@ class Scanner extends \PHPUnit_Framework_TestCase {
$this->assertInternalType('string', $newData0['etag']);
$this->assertNotEmpty($newData0['etag']);
}
public function testRepairParent() {
$this->fillTestFolders();
$this->scanner->scan('');
$this->assertTrue($this->cache->inCache('folder/bar.txt'));
$oldFolderId = $this->cache->getId('folder');
// delete the folder without removing the childs
$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `fileid` = ?';
\OC_DB::executeAudited($sql, array($oldFolderId));
$cachedData = $this->cache->get('folder/bar.txt');
$this->assertEquals($oldFolderId, $cachedData['parent']);
$this->assertFalse($this->cache->inCache('folder'));
$this->scanner->scan('');
$this->assertTrue($this->cache->inCache('folder'));
$newFolderId = $this->cache->getId('folder');
$this->assertNotEquals($oldFolderId, $newFolderId);
$cachedData = $this->cache->get('folder/bar.txt');
$this->assertEquals($newFolderId, $cachedData['parent']);
}
public function testRepairParentShallow() {
$this->fillTestFolders();
$this->scanner->scan('');
$this->assertTrue($this->cache->inCache('folder/bar.txt'));
$oldFolderId = $this->cache->getId('folder');
// delete the folder without removing the childs
$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `fileid` = ?';
\OC_DB::executeAudited($sql, array($oldFolderId));
$cachedData = $this->cache->get('folder/bar.txt');
$this->assertEquals($oldFolderId, $cachedData['parent']);
$this->assertFalse($this->cache->inCache('folder'));
$this->scanner->scan('folder', \OC\Files\Cache\Scanner::SCAN_SHALLOW);
$this->assertTrue($this->cache->inCache('folder'));
$newFolderId = $this->cache->getId('folder');
$this->assertNotEquals($oldFolderId, $newFolderId);
$cachedData = $this->cache->get('folder/bar.txt');
$this->assertEquals($newFolderId, $cachedData['parent']);
}
}