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Do not return shares for files outside "files"

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This commit is contained in:
Vincent Petry 2015-03-24 11:08:19 +01:00
parent 7ad4dfa201
commit 80f83ab5e0
2 changed files with 87 additions and 11 deletions
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59
lib/private/share/share.php
View file

@ -327,18 +327,20 @@ class Share extends \OC\Share\Constants {
*/
public static function getItemSharedWithUser($itemType, $itemSource, $user, $owner = null, $shareType = null) {
$shares = array();
$fileDependend = false;
$fileDependent = false;
if ($itemType === 'file' || $itemType === 'folder') {
$fileDependend = true;
$fileDependent = true;
$column = 'file_source';
$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` WHERE';
$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
$where .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
$where .= ' WHERE';
} else {
$column = 'item_source';
$where = 'WHERE';
}
$select = self::createSelectStatement(self::FORMAT_NONE, $fileDependend);
$select = self::createSelectStatement(self::FORMAT_NONE, $fileDependent);
$where .= ' `' . $column . '` = ? AND `item_type` = ? ';
$arguments = array($itemSource, $itemType);
@ -363,6 +365,9 @@ class Share extends \OC\Share\Constants {
$result = \OC_DB::executeAudited($query, $arguments);
while ($row = $result->fetchRow()) {
if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
continue;
}
$shares[] = $row;
}
@ -1382,10 +1387,11 @@ class Share extends \OC\Share\Constants {
} else {
$root = '';
}
$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid`';
$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
if (!isset($item)) {
$where .= ' WHERE `file_target` IS NOT NULL';
$where .= ' AND `file_target` IS NOT NULL ';
}
$where .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
$fileDependent = true;
$queryArgs = array();
} else {
@ -1526,6 +1532,9 @@ class Share extends \OC\Share\Constants {
while ($row = $result->fetchRow()) {
self::transformDBResults($row);
// Filter out duplicate group shares for users with unique targets
if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
continue;
}
if ($row['share_type'] == self::$shareTypeGroupUserUnique && isset($items[$row['parent']])) {
$row['share_type'] = self::SHARE_TYPE_GROUP;
$row['unique_name'] = true; // remember that we use a unique name for this user
@ -2181,7 +2190,9 @@ class Share extends \OC\Share\Constants {
$select = '*';
if ($format == self::FORMAT_STATUSES) {
if ($fileDependent) {
$select = '`*PREFIX*share`.`id`, `*PREFIX*share`.`parent`, `share_type`, `path`, `storage`, `share_with`, `uid_owner` , `file_source`, `stime`, `*PREFIX*share`.`permissions`';
$select = '`*PREFIX*share`.`id`, `*PREFIX*share`.`parent`, `share_type`, `path`, `storage`, '
. '`share_with`, `uid_owner` , `file_source`, `stime`, `*PREFIX*share`.`permissions`, '
. '`*PREFIX*storages`.`id` AS `storage_id`';
} else {
$select = '`id`, `parent`, `share_type`, `share_with`, `uid_owner`, `item_source`, `stime`, `*PREFIX*share`.`permissions`';
}
@ -2190,7 +2201,8 @@ class Share extends \OC\Share\Constants {
if ($fileDependent) {
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`,'
. ' `share_type`, `share_with`, `file_source`, `file_target`, `path`, `*PREFIX*share`.`permissions`, `stime`,'
. ' `expiration`, `token`, `storage`, `mail_send`, `uid_owner`';
. ' `expiration`, `token`, `storage`, `mail_send`, `uid_owner`, '
. '`*PREFIX*storages`.`id` AS `storage_id`';
} else {
$select = '`id`, `item_type`, `item_source`, `parent`, `share_type`, `share_with`, `*PREFIX*share`.`permissions`,'
. ' `stime`, `file_source`, `expiration`, `token`, `mail_send`, `uid_owner`';
@ -2203,9 +2215,11 @@ class Share extends \OC\Share\Constants {
. '`*PREFIX*share`.`permissions`, `expiration`, `storage`, `*PREFIX*filecache`.`parent` as `file_parent`, '
. '`name`, `mtime`, `mimetype`, `mimepart`, `size`, `unencrypted_size`, `encrypted`, `etag`, `mail_send`';
} else {
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `item_target`,
`*PREFIX*share`.`parent`, `share_type`, `share_with`, `uid_owner`,
`file_source`, `path`, `file_target`, `*PREFIX*share`.`permissions`, `stime`, `expiration`, `token`, `storage`, `mail_send`';
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `item_target`,'
. '`*PREFIX*share`.`parent`, `share_type`, `share_with`, `uid_owner`,'
. '`file_source`, `path`, `file_target`, `*PREFIX*share`.`permissions`,'
. '`stime`, `expiration`, `token`, `storage`, `mail_send`,'
. '`*PREFIX*storages`.`id` AS `storage_id`';
}
}
}
@ -2391,4 +2405,27 @@ class Share extends \OC\Share\Constants {
return (int)\OCP\Config::getAppValue('core', 'shareapi_expire_after_n_days', '7');
}
/**
* Checks whether the given path is reachable for the given owner
*
* @param string $path path relative to files
* @param string $ownerStorageId storage id of the owner
*
* @return boolean true if file is reachable, false otherwise
*/
private static function isFileReachable($path, $ownerStorageId) {
// if outside the home storage, file is always considered reachable
if (!(substr($ownerStorageId, 0, 6) === 'home::')) {
return true;
}
// if inside the home storage, the file has to be under "/files/"
$path = ltrim($path, '/');
if (substr($path, 0, 6) === 'files/') {
return true;
}
return false;
}
}

39
tests/lib/share/share.php
View file

@ -388,6 +388,45 @@ class Test_Share extends \Test\TestCase {
$this->assertSame(\OCP\Share::SHARE_TYPE_USER, $share['share_type']);
}
public function testGetShareFromOutsideFilesFolder() {
OC_User::setUserId($this->user1);
$view = new \OC\Files\View('/' . $this->user1 . '/');
$view->mkdir('files/test');
$view->mkdir('files/test/sub');
$view->mkdir('files_trashbin');
$view->mkdir('files_trashbin/files');
$fileInfo = $view->getFileInfo('files/test/sub');
$fileId = $fileInfo->getId();
$this->assertTrue(
OCP\Share::shareItem('folder', $fileId, OCP\Share::SHARE_TYPE_USER, $this->user2, \OCP\Constants::PERMISSION_READ),
'Failed asserting that user 1 successfully shared "test/sub" with user 2.'
);
$result = OCP\Share::getItemShared('folder', $fileId, Test_Share_Backend::FORMAT_SOURCE);
$this->assertNotEmpty($result);
$result = OCP\Share::getItemSharedWithUser('folder', $fileId, $this->user2);
$this->assertNotEmpty($result);
$result = OCP\Share::getItemsSharedWithUser('folder', $this->user2);
$this->assertNotEmpty($result);
// move to trash (keeps file id)
$view->rename('files/test', 'files_trashbin/files/test');
$result = OCP\Share::getItemShared('folder', $fileId, Test_Share_Backend::FORMAT_SOURCE);
$this->assertEmpty($result, 'Share must not be returned for files outside of "files"');
$result = OCP\Share::getItemSharedWithUser('folder', $fileId, $this->user2);
$this->assertEmpty($result, 'Share must not be returned for files outside of "files"');
$result = OCP\Share::getItemsSharedWithUser('folder', $this->user2);
$this->assertEmpty($result, 'Share must not be returned for files outside of "files"');
}
public function testSetExpireDateInPast() {
OC_User::setUserId($this->user1);
$this->shareUserOneTestFileWithUserTwo();