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Return hashes of uploaded content for dav uploads 

hashes are set in "X-Hash-MD5", "X-Hash-SHA1" and "X-Hash-SHA256" headers.

these headers are set for file uploads and the MOVE request at the end of a multipart upload.

Signed-off-by: Robin Appelman <robin@icewind.nl>
This commit is contained in:
Robin Appelman 2020-02-07 14:22:12 +01:00 committed by Roeland Jago Douma
parent 6187cea304
commit c2677682c4
No known key found for this signature in database
GPG Key ID: F941078878347C0C
5 changed files with 148 additions and 8 deletions
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13
apps/dav/lib/Connector/Sabre/File.php
View File

@ -41,6 +41,7 @@ namespace OCA\DAV\Connector\Sabre;
use Icewind\Streams\CallbackWrapper;
use OC\AppFramework\Http\Request;
use OC\Files\Filesystem;
use OC\Files\Stream\HashWrapper;
use OC\Files\View;
use OCA\DAV\Connector\Sabre\Exception\EntityTooLarge;
use OCA\DAV\Connector\Sabre\Exception\FileLocked;
@ -173,7 +174,6 @@ class File extends Node implements IFile {
$this->changeLock(ILockingProvider::LOCK_EXCLUSIVE);
}
if ($partStorage->instanceOfStorage(Storage\IWriteStreamStorage::class)) {
if (!is_resource($data)) {
$tmpData = fopen('php://temp', 'r+');
if ($data !== null) {
@ -183,6 +183,17 @@ class File extends Node implements IFile {
$data = $tmpData;
}
$data = HashWrapper::wrap($data, 'md5', function ($hash) {
$this->header('X-Hash-MD5: ' . $hash);
});
$data = HashWrapper::wrap($data, 'sha1', function ($hash) {
$this->header('X-Hash-SHA1: ' . $hash);
});
$data = HashWrapper::wrap($data, 'sha256', function ($hash) {
$this->header('X-Hash-SHA256: ' . $hash);
});
if ($partStorage->instanceOfStorage(Storage\IWriteStreamStorage::class)) {
$isEOF = false;
$wrappedData = CallbackWrapper::wrap($data, null, null, null, null, function ($stream) use (&$isEOF) {
$isEOF = feof($stream);

1
lib/composer/composer/autoload_classmap.php
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@ -1024,6 +1024,7 @@ return array(
'OC\\Files\\Storage\\Wrapper\\Quota' => $baseDir . '/lib/private/Files/Storage/Wrapper/Quota.php',
'OC\\Files\\Storage\\Wrapper\\Wrapper' => $baseDir . '/lib/private/Files/Storage/Wrapper/Wrapper.php',
'OC\\Files\\Stream\\Encryption' => $baseDir . '/lib/private/Files/Stream/Encryption.php',
'OC\\Files\\Stream\\HashWrapper' => $baseDir . '/lib/private/Files/Stream/HashWrapper.php',
'OC\\Files\\Stream\\Quota' => $baseDir . '/lib/private/Files/Stream/Quota.php',
'OC\\Files\\Stream\\SeekableHttpStream' => $baseDir . '/lib/private/Files/Stream/SeekableHttpStream.php',
'OC\\Files\\Type\\Detection' => $baseDir . '/lib/private/Files/Type/Detection.php',

1
lib/composer/composer/autoload_static.php
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@ -1053,6 +1053,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
'OC\\Files\\Storage\\Wrapper\\Quota' => __DIR__ . '/../../..' . '/lib/private/Files/Storage/Wrapper/Quota.php',
'OC\\Files\\Storage\\Wrapper\\Wrapper' => __DIR__ . '/../../..' . '/lib/private/Files/Storage/Wrapper/Wrapper.php',
'OC\\Files\\Stream\\Encryption' => __DIR__ . '/../../..' . '/lib/private/Files/Stream/Encryption.php',
'OC\\Files\\Stream\\HashWrapper' => __DIR__ . '/../../..' . '/lib/private/Files/Stream/HashWrapper.php',
'OC\\Files\\Stream\\Quota' => __DIR__ . '/../../..' . '/lib/private/Files/Stream/Quota.php',
'OC\\Files\\Stream\\SeekableHttpStream' => __DIR__ . '/../../..' . '/lib/private/Files/Stream/SeekableHttpStream.php',
'OC\\Files\\Type\\Detection' => __DIR__ . '/../../..' . '/lib/private/Files/Type/Detection.php',

72
lib/private/Files/Stream/HashWrapper.php Normal file
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@ -0,0 +1,72 @@
<?php declare(strict_types=1);
/**
* @copyright Copyright (c) 2020 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Files\Stream;
use Icewind\Streams\Wrapper;
class HashWrapper extends Wrapper {
protected $callback;
protected $hash;
public static function wrap($source, string $algo, callable $callback) {
$hash = hash_init($algo);
$context = stream_context_create([
'hash' => [
'source' => $source,
'callback' => $callback,
'hash' => $hash,
],
]);
return Wrapper::wrapSource($source, $context, 'hash', self::class);
}
protected function open() {
$context = $this->loadContext('hash');
$this->callback = $context['callback'];
$this->hash = $context['hash'];
return true;
}
public function dir_opendir($path, $options) {
return $this->open();
}
public function stream_open($path, $mode, $options, &$opened_path) {
return $this->open();
}
public function stream_read($count) {
$result = parent::stream_read($count);
hash_update($this->hash, $result);
return $result;
}
public function stream_close() {
if (is_callable($this->callback)) {
call_user_func($this->callback, hash_final($this->hash));
// prevent further calls by potential PHP 7 GC ghosts
$this->callback = null;
}
return parent::stream_close();
}
}

55
tests/lib/Files/Stream/HashWrapperTest.php Normal file
View File

@ -0,0 +1,55 @@
<?php declare(strict_types=1);
/**
* @copyright Copyright (c) 2020 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace Test\Files\Stream;
use OC\Files\Stream\HashWrapper;
use Test\TestCase;
class HashWrapperTest extends TestCase {
/**
* @dataProvider hashProvider
*/
public function testHashStream($data, string $algo, string $hash) {
if (!is_resource($data)) {
$tmpData = fopen('php://temp', 'r+');
if ($data !== null) {
fwrite($tmpData, $data);
rewind($tmpData);
}
$data = $tmpData;
}
$wrapper = HashWrapper::wrap($data, $algo, function ($result) use ($hash) {
$this->assertEquals($hash, $result);
});
stream_get_contents($wrapper);
}
public function hashProvider() {
return [
['foo', 'md5', 'acbd18db4cc2f85cedef654fccc4a4d8'],
['foo', 'sha1', '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33'],
['foo', 'sha256', '2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae'],
[str_repeat('foo', 8192), 'md5', '96684d2b796a2c54a026b5d60f9de819'],
];
}
}