160 lines
4.2 KiB
PHP
160 lines
4.2 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Jakob Sack
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* @copyright 2011 Jakob Sack kde@jakobsack.de
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_DAV_IFile {
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/**
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* Updates the data
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*
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* The data argument is a readable stream resource.
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*
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* After a succesful put operation, you may choose to return an ETag. The
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* etag must always be surrounded by double-quotes. These quotes must
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* appear in the actual string you're returning.
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*
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* Clients may use the ETag from a PUT request to later on make sure that
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* when they update the file, the contents haven't changed in the mean
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* time.
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*
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* If you don't plan to store the file byte-by-byte, and you return a
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* different object on a subsequent GET you are strongly recommended to not
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* return an ETag, and just return null.
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*
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* @param resource $data
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* @throws Sabre_DAV_Exception_Forbidden
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* @return string|null
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*/
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public function put($data) {
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if (!\OC\Files\Filesystem::isUpdatable($this->path)) {
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throw new \Sabre_DAV_Exception_Forbidden();
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}
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// mark file as partial while uploading (ignored by the scanner)
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$partpath = $this->path . '.part';
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\OC\Files\Filesystem::file_put_contents($partpath, $data);
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//detect aborted upload
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if (isset ($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') {
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if (isset($_SERVER['CONTENT_LENGTH'])) {
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$expected = $_SERVER['CONTENT_LENGTH'];
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$actual = \OC\Files\Filesystem::filesize($partpath);
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if ($actual != $expected) {
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\OC\Files\Filesystem::unlink($partpath);
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throw new Sabre_DAV_Exception_BadRequest(
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'expected filesize ' . $expected . ' got ' . $actual);
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}
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}
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}
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// rename to correct path
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\OC\Files\Filesystem::rename($partpath, $this->path);
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//allow sync clients to send the mtime along in a header
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$mtime = OC_Request::hasModificationTime();
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if ($mtime !== false) {
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if (\OC\Files\Filesystem::touch($this->path, $mtime)) {
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header('X-OC-MTime: accepted');
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}
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}
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return OC_Connector_Sabre_Node::getETagPropertyForPath($this->path);
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}
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/**
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* Returns the data
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*
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* @return string
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*/
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public function get() {
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return \OC\Files\Filesystem::fopen($this->path, 'rb');
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}
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/**
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* Delete the current file
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*
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* @return void
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* @throws Sabre_DAV_Exception_Forbidden
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*/
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public function delete() {
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if (!\OC\Files\Filesystem::isDeletable($this->path)) {
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throw new \Sabre_DAV_Exception_Forbidden();
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}
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\OC\Files\Filesystem::unlink($this->path);
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}
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/**
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* Returns the size of the node, in bytes
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*
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* @return int
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*/
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public function getSize() {
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$this->getFileinfoCache();
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if ($this->fileinfo_cache['size'] > -1) {
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return $this->fileinfo_cache['size'];
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} else {
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return null;
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}
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}
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/**
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* Returns the ETag for a file
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*
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* An ETag is a unique identifier representing the current version of the
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* file. If the file changes, the ETag MUST change. The ETag is an
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* arbritrary string, but MUST be surrounded by double-quotes.
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*
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* Return null if the ETag can not effectively be determined
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*
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* @return mixed
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*/
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public function getETag() {
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$properties = $this->getProperties(array(self::GETETAG_PROPERTYNAME));
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if (isset($properties[self::GETETAG_PROPERTYNAME])) {
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return $properties[self::GETETAG_PROPERTYNAME];
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}
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return null;
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}
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/**
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* Returns the mime-type for a file
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*
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* If null is returned, we'll assume application/octet-stream
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*
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* @return mixed
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*/
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public function getContentType() {
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if (isset($this->fileinfo_cache['mimetype'])) {
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return $this->fileinfo_cache['mimetype'];
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}
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return \OC\Files\Filesystem::getMimeType($this->path);
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}
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}
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