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When deleting a file, delete all transformations of the file

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Summary:
Fixes T3143. When a user deletes a file, delete all transforms of the file too. In particular, this means that deleting an image deletes all the thumbnails of the image.

In most cases, this aligns with user expectations. The only sort of weird case I can come up with is that memes are transformations of the source macro image, so deleting grumpycat will delete all the hilarious grumpycat memes. This seems not-too-unreasonable, though, and desirable if someone accidentally uploads an inappropriate image which is promptly turned into a meme.

Test Plan:
Added a unit test which covers both inbound and outbound transformations.

Uploaded a file and deleted it, verified its thumbnail was also deleted.

Reviewers: chad, btrahan, joseph.kampf

Reviewed By: btrahan

CC: aran, joseph.kampf

Maniphest Tasks: T3143

Differential Revision: https://secure.phabricator.com/D5879
This commit is contained in:
epriestley
2013-05-09 16:08:35 -07:00
parent dc6c1bf435
commit 402d2e2605
3 changed files with 183 additions and 16 deletions
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45
src/applications/files/storage/PhabricatorFile.php
View File

@@ -384,29 +384,54 @@ final class PhabricatorFile extends PhabricatorFileDAO
}
public function delete() {
// delete all records of this file in transformedfile
$trans_files = id(new PhabricatorTransformedFile())->loadAllWhere(
'TransformedPHID = %s', $this->getPHID());
// We want to delete all the rows which mark this file as the transformation
// of some other file (since we're getting rid of it). We also delete all
// the transformations of this file, so that a user who deletes an image
// doesn't need to separately hunt down and delete a bunch of thumbnails and
// resizes of it.
$outbound_xforms = id(new PhabricatorFileQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withTransforms(
array(
array(
'originalPHID' => $this->getPHID(),
'transform' => true,
),
))
->execute();
foreach ($outbound_xforms as $outbound_xform) {
$outbound_xform->delete();
}
$inbound_xforms = id(new PhabricatorTransformedFile())->loadAllWhere(
'transformedPHID = %s',
$this->getPHID());
$this->openTransaction();
foreach ($trans_files as $trans_file) {
$trans_file->delete();
}
$ret = parent::delete();
foreach ($inbound_xforms as $inbound_xform) {
$inbound_xform->delete();
}
$ret = parent::delete();
$this->saveTransaction();
// Check to see if other files are using storage
$other_file = id(new PhabricatorFile())->loadAllWhere(
'storageEngine = %s AND storageHandle = %s AND
storageFormat = %s AND id != %d LIMIT 1', $this->getStorageEngine(),
$this->getStorageHandle(), $this->getStorageFormat(),
storageFormat = %s AND id != %d LIMIT 1',
$this->getStorageEngine(),
$this->getStorageHandle(),
$this->getStorageFormat(),
$this->getID());
// If this is the only file using the storage, delete storage
if (count($other_file) == 0) {
if (!$other_file) {
$engine = $this->instantiateStorageEngine();
$engine->deleteFile($this->getStorageHandle());
}
return $ret;
}