/** * Updates the data * * The data argument is a readable stream resource. * * After a succesful put operation, you may choose to return an ETag. The * etag must always be surrounded by double-quotes. These quotes must * appear in the actual string you're returning. * * Clients may use the ETag from a PUT request to later on make sure that * when they update the file, the contents haven't changed in the mean * time. * * If you don't plan to store the file byte-by-byte, and you return a * different object on a subsequent GET you are strongly recommended to not * return an ETag, and just return null. * * @param resource $data * @throws Sabre_DAV_Exception_Forbidden * @return string|null */ public function put($data) { if (!\OC\Files\Filesystem::isUpdatable($this->path)) { throw new \Sabre_DAV_Exception_Forbidden(); } // mark file as partial while uploading (ignored by the scanner) $partpath = $this->path . '.part'; \OC\Files\Filesystem::file_put_contents($partpath, $data); //detect aborted upload if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') { if (isset($_SERVER['CONTENT_LENGTH'])) { $expected = $_SERVER['CONTENT_LENGTH']; $actual = \OC\Files\Filesystem::filesize($partpath); if ($actual != $expected) { \OC\Files\Filesystem::unlink($partpath); throw new Sabre_DAV_Exception_BadRequest('expected filesize ' . $expected . ' got ' . $actual); } } } // rename to correct path \OC\Files\Filesystem::rename($partpath, $this->path); //allow sync clients to send the mtime along in a header $mtime = OC_Request::hasModificationTime(); if ($mtime !== false) { if (\OC\Files\Filesystem::touch($this->path, $mtime)) { header('X-OC-MTime: accepted'); } } return OC_Connector_Sabre_Node::getETagPropertyForPath($this->path); }
/** * Creates a new file in the directory * * Data will either be supplied as a stream resource, or in certain cases * as a string. Keep in mind that you may have to support either. * * After succesful creation of the file, you may choose to return the ETag * of the new file here. * * The returned ETag must be surrounded by double-quotes (The quotes should * be part of the actual string). * * If you cannot accurately determine the ETag, you should not return it. * If you don't store the file exactly as-is (you're transforming it * somehow) you should also not return an ETag. * * This means that if a subsequent GET to this new file does not exactly * return the same contents of what was submitted here, you are strongly * recommended to omit the ETag. * * @param string $name Name of the file * @param resource|string $data Initial payload * @throws Sabre_DAV_Exception_Forbidden * @return null|string */ public function createFile($name, $data = null) { if (!\OC\Files\Filesystem::isCreatable($this->path)) { throw new \Sabre_DAV_Exception_Forbidden(); } if (isset($_SERVER['HTTP_OC_CHUNKED'])) { $info = OC_FileChunking::decodeName($name); if (empty($info)) { throw new Sabre_DAV_Exception_NotImplemented(); } $chunk_handler = new OC_FileChunking($info); $chunk_handler->store($info['index'], $data); if ($chunk_handler->isComplete()) { $newPath = $this->path . '/' . $info['name']; $chunk_handler->file_assemble($newPath); return OC_Connector_Sabre_Node::getETagPropertyForPath($newPath); } } else { $newPath = $this->path . '/' . $name; // mark file as partial while uploading (ignored by the scanner) $partpath = $newPath . '.part'; \OC\Files\Filesystem::file_put_contents($partpath, $data); //detect aborted upload if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') { if (isset($_SERVER['CONTENT_LENGTH'])) { $expected = $_SERVER['CONTENT_LENGTH']; $actual = \OC\Files\Filesystem::filesize($partpath); if ($actual != $expected) { \OC\Files\Filesystem::unlink($partpath); throw new Sabre_DAV_Exception_BadRequest('expected filesize ' . $expected . ' got ' . $actual); } } } // rename to correct path \OC\Files\Filesystem::rename($partpath, $newPath); // allow sync clients to send the mtime along in a header $mtime = OC_Request::hasModificationTime(); if ($mtime !== false) { if (\OC\Files\Filesystem::touch($newPath, $mtime)) { header('X-OC-MTime: accepted'); } } return OC_Connector_Sabre_Node::getETagPropertyForPath($newPath); } return null; }
/** * @param resource $data * @return null|string */ private function createFileChunked($data) { list($path, $name) = \Sabre\DAV\URLUtil::splitPath($this->path); $info = OC_FileChunking::decodeName($name); if (empty($info)) { throw new \Sabre\DAV\Exception\NotImplemented(); } $chunk_handler = new OC_FileChunking($info); $bytesWritten = $chunk_handler->store($info['index'], $data); //detect aborted upload if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') { if (isset($_SERVER['CONTENT_LENGTH'])) { $expected = $_SERVER['CONTENT_LENGTH']; if ($bytesWritten != $expected) { $chunk_handler->remove($info['index']); throw new \Sabre\DAV\Exception\BadRequest('expected filesize ' . $expected . ' got ' . $bytesWritten); } } } if ($chunk_handler->isComplete()) { // we first assembly the target file as a part file $partFile = $path . '/' . $info['name'] . '.ocTransferId' . $info['transferid'] . '.part'; $chunk_handler->file_assemble($partFile); // here is the final atomic rename $targetPath = $path . '/' . $info['name']; $renameOkay = $this->fileView->rename($partFile, $targetPath); $fileExists = $this->fileView->file_exists($targetPath); if ($renameOkay === false || $fileExists === false) { \OC_Log::write('webdav', '\\OC\\Files\\Filesystem::rename() failed', \OC_Log::ERROR); // only delete if an error occurred and the target file was already created if ($fileExists) { $this->fileView->unlink($targetPath); } throw new \Sabre\DAV\Exception('Could not rename part file assembled from chunks'); } // allow sync clients to send the mtime along in a header $mtime = OC_Request::hasModificationTime(); if ($mtime !== false) { if ($this->fileView->touch($targetPath, $mtime)) { header('X-OC-MTime: accepted'); } } $info = $this->fileView->getFileInfo($targetPath); return $info->getEtag(); } return null; }