More work on Google Docs storage backend
This commit is contained in:
Michael Gapczynski
parent
2754cac21f
commit
02f15e9a03
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@ -20,12 +20,15 @@
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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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class OC_Filestorage_Google {
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require_once 'common.inc.php';
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class OC_Filestorage_Google extends OC_Filestorage_Common {
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private $datadir;
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private $consumer;
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private $oauth_token;
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private $sig_method;
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private $entries;
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public function __construct($arguments) {
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$this->datadir = $arguments['datadir'];
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@ -34,6 +37,7 @@ class OC_Filestorage_Google {
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$this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
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$this->oauth_token = new OAuthToken($arguments['token'], $arguments['token_secret']);
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$this->sig_method = new OAuthSignatureMethod_HMAC_SHA1();
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$this->entries = array();
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}
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private function sendRequest($feedUri, $http_method, $postData = null) {
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@ -66,32 +70,59 @@ class OC_Filestorage_Google {
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}
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private function getResource($path) {
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// TODO Look up google docs query caching/only send back if changes occured
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// TODO Look inside of collections for specific file
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// TODO Strip extension
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$title = basename($path);
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return $this->sendRequest('https://docs.google.com/feeds/default/private/full?showfolders=true&title='.$title.'&title-exact=true', 'GET');
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if (array_key_exists($path, $this->entries)) {
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return $this->entries[$path];
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} else {
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$title = basename($path);
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$dom = $this->sendRequest('https://docs.google.com/feeds/default/private/full?showfolders=true&title='.$title, 'GET');
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// Check if request was successful and entry exists
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if ($dom && $entry = $dom->getElementsByTagName('entry')->item(0)) {
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$this->entries[$path] = $entry;
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return $entry;
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}
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return false;
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}
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}
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private function getExtension($entry) {
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$mimetype = $this->getMimeType('', $entry);
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switch($mimetype) {
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case 'httpd/unix-directory':
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return '';
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case 'application/vnd.oasis.opendocument.text':
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return 'odt';
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case 'application/vnd.oasis.opendocument.spreadsheet':
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return 'ods';
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case 'application/vnd.oasis.opendocument.presentation':
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return 'pptx';
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case 'text/html':
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return 'html';
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default:
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return 'html';
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}
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}
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public function mkdir($path) {
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$dir = dirname($path);
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// Check if path parent is root directory
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if ($dir == '/' || $dir == '\.' || $dir == '.') {
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$feedUri = 'https://docs.google.com/feeds/default/private/full';
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// Get parent content link
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} else {
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$dom = $this->getResource(basename($dir));
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} else if ($dom = $this->getResource(basename($dir))) {
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$feedUri = $dom->getElementsByTagName('content')->item(0)->getAttribute('src');
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}
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$title = basename($path);
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// Construct post data
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$postData = '<?xml version="1.0" encoding="UTF-8"?>';
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$postData .= '<entry xmlns="http://www.w3.org/2005/Atom">';
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$postData .= '<category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/docs/2007#folder"/>';
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$postData .= '<title>'.$title.'</title>';
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$postData .= '</entry>';
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if ($dom = $this->sendRequest($feedUri, 'POST', $postData)) {
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return true;
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if (isset($feedUri)) {
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$title = basename($path);
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// Construct post data
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$postData = '<?xml version="1.0" encoding="UTF-8"?>';
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$postData .= '<entry xmlns="http://www.w3.org/2005/Atom">';
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$postData .= '<category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/docs/2007#folder"/>';
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$postData .= '<title>'.$title.'</title>';
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$postData .= '</entry>';
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if ($dom = $this->sendRequest($feedUri, 'POST', $postData)) {
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return true;
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}
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}
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return false;
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}
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@ -102,106 +133,87 @@ class OC_Filestorage_Google {
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public function opendir($path) {
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if ($path == '' || $path == '/') {
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$resource = 'https://docs.google.com/feeds/default/private/full/folder%3Aroot/contents';
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$dom = $this->sendRequest('https://docs.google.com/feeds/default/private/full/folder%3Aroot/contents', 'GET');
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$next = 'https://docs.google.com/feeds/default/private/full/folder%3Aroot/contents';
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} else {
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$dom = $this->getResource($path);
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if ($entry = $this->getResource($path)) {
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$collectionId = $entry->getElementsByTagNameNS('http://schemas.google.com/g/2005', 'resourceId')->item(0)->nodeValue;
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$next = 'https://docs.google.com/feeds/default/private/full/folder%3A'.$collectionId.'/contents';
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} else {
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return false;
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}
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}
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global $FAKEDIRS;
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$files = array();
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// while ($next) {
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// // send request $next link
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// $links = $dom->getElementsByTagName('link');
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// foreach ($links as $link) {
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// if ($link->getAttribute('rel') == 'next') {
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// $next = $link->getAttribute('src');
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// break;
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// } else {
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// $next = false;
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// }
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// }
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while ($next) {
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$dom = $this->sendRequest($next, 'GET');
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$links = $dom->getElementsByTagName('link');
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foreach ($links as $link) {
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if ($link->getAttribute('rel') == 'next') {
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$next = $link->getAttribute('src');
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break;
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} else {
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$next = false;
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}
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}
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$entries = $dom->getElementsByTagName('entry');
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foreach($entries as $entry) {
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foreach ($entries as $entry) {
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$name = $entry->getElementsByTagName('title')->item(0)->nodeValue;
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// Native Google resources don't include extensions in title
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// Google Docs resources don't always include extensions in title
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if (!strpos($name, '.')) {
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if ($ext = $this->filetype('', $entry)) {
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$name .= '.'.$ext;
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}
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$name .= '.'.$this->getExtension($entry);
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}
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$files[] = $name;
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// Cache entry for future use
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$this->entries[$name] = $entry;
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}
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// }
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$FAKEDIRS['google'] = $files;
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}
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OC_FakeDirStream::$dirs['google'] = $files;
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return opendir('fakedir://google');
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}
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public function is_dir($path) {
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if ($entry = $this->getResource($path)) {
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public function stat($path) {
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if ($path == '' || $path == '/') {
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$stat['size'] = $this->free_space($path);
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$stat['atime'] = time();
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$stat['mtime'] = time();
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$stat['ctime'] = time();
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} else if ($entry = $this->getResource($path)) {
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// NOTE: Native resources don't have a file size
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$stat['size'] = $entry->getElementsByTagNameNS('http://schemas.google.com/g/2005', 'quotaBytesUsed')->item(0)->nodeValue;
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$stat['atime'] = strtotime($entry->getElementsByTagNameNS('http://schemas.google.com/g/2005', 'lastViewed')->item(0)->nodeValue);
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$stat['mtime'] = strtotime($entry->getElementsByTagName('updated')->item(0)->nodeValue);
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$stat['ctime'] = strtotime($entry->getElementsByTagName('published')->item(0)->nodeValue);
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}
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return $stat;
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}
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public function filetype($path) {
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if ($path == '' || $path == '/') {
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return 'dir';
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} else if ($entry = $this->getResource($path)) {
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$categories = $entry->getElementsByTagName('category');
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foreach ($categories as $category) {
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if ($category->getAttribute('scheme') == 'http://schemas.google.com/g/2005#kind') {
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// Check if label is equal to folder
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$type = $category->getAttribute('label');
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if (strlen(strstr($type, 'folder')) > 0) {
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return true;
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return 'dir';
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} else {
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return 'file';
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}
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}
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}
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}
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return false;
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}
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public function is_file($path) {
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if ($this->getResource($path)) {
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return true;
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}
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return false;
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}
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public function stat($path) {
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if ($dom = $this->getResource($path)) {
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// TODO Native resources don't have a file size
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$stat['size'] = $dom->getElementsByTagNameNS('http://schemas.google.com/g/2005', 'quotaBytesUsed')->item(0)->nodeValue;
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$stat['mtime'] = strtotime($dom->getElementsByTagName('updated')->item(1)->nodeValue);
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$stat['ctime'] = strtotime($dom->getElementsByTagName('published')->item(0)->nodeValue);
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return $stat;
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}
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return false;
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}
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public function filetype($path, $entry = null) {
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if ($entry == null) {
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$entry = $this->getResource($path);
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}
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$categories = $entry->getElementsByTagName('category');
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foreach ($categories as $category) {
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if ($category->getAttribute('scheme') == 'http://schemas.google.com/g/2005#kind') {
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// Guess extension from label, default to ODF extensions
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$type = $category->getAttribute('label');
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if (strlen(strstr($type, 'folder')) > 0) {
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return '';
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} else if (strlen(strstr($type, 'document')) > 0) {
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return 'odt';
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} else if (strlen(strstr($type, 'presentation')) > 0) {
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return 'odp';
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} else if (strlen(strstr($type, 'spreadsheet')) > 0) {
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return 'ods';
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} else {
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return $type;
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}
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}
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}
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}
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public function is_readable($path) {
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return true;
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}
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public function is_writable($path) {
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// Check if edit or edit-media links exist
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if ($entry = $this->getResource($path)) {
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if ($path == '' || $path == '/') {
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return true;
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} else if ($entry = $this->getResource($path)) {
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// Check if edit or edit-media links exist
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$links = $entry->getElementsByTagName('link');
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foreach ($links as $link) {
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if ($link->getAttribute('rel') == 'edit') {
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@ -215,7 +227,9 @@ class OC_Filestorage_Google {
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}
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public function file_exists($path) {
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if ($this->getResource($path)) {
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if ($path == '' || $path == '/') {
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return true;
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} else if ($this->getResource($path)) {
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return true;
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}
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return false;
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@ -238,24 +252,82 @@ class OC_Filestorage_Google {
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return false;
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}
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public function rename($path1,$path2) {
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public function rename($path1, $path2) {
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// TODO Add support for moving to different collections
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// Get resource edit link to rename resource
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if ($entry = $this->getResource($path1)) {
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$etag = $entry->getElementsByTagName('entry')->item(0)->getAttribute('gd:etag');
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$links = $entry->getElementsByTagName('link');
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foreach ($links as $link) {
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if ($link->getAttribute('rel') == 'edit') {
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$feedUri = $link->getAttribute('href');
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}
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}
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}
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if (isset($etag) && isset($feedUri)) {
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$title = basename($path2);
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// Construct post data
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$postData = '<?xml version="1.0" encoding="UTF-8"?>';
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$postData .= '<entry xmlns="http://www.w3.org/2005/Atom" xmlns:docs="http://schemas.google.com/docs/2007" xmlns:gd="http://schemas.google.com/g/2005" gd:etag='.$etag.'>';
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$postData .= '<title>'.$title.'</title>';
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$postData .= '</entry>';
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$this->sendRequest($feedUri, 'PUT', $postData);
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return true;
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}
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return false;
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}
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public function fopen($path,$mode){}
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public function toTmpFile($path) {
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$dom = $this->getResource($path);
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$url = $dom->getElementsByTagName('content')->getAttribute('src');
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public function fopen($path, $mode) {
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if ($entry = $this->getResource($path)) {
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$extension = $this->getExtension($path);
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$downloadUri = $entry->getElementsByTagName('content')->item(0)->getAttribute('src');
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// TODO Non-native documents don't need these additional parameters
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$downloadUri .= '&exportFormat='.$extension.'&format='.$extension;
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}
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}
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public function fromTmpFile($tmpPath,$path){}
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public function fromUploadedFile($tmpPath,$path){}
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public function getMimeType($path){}
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public function hash($type,$path,$raw){}
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public function getMimeType($path, $entry = null) {
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if ($entry == null) {
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if ($path == '' || $path == '/') {
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return 'httpd/unix-directory';
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} else {
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$entry = $this->getResource($path);
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}
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}
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if ($entry) {
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$mimetype = $entry->getElementsByTagName('content')->item(0)->getAttribute('type');
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// Native Google Docs resources often default to text/html, but it may be more useful to default to a corresponding ODF mimetype
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// Collections get reported as application/atom+xml, make sure it actually is a folder and fix the mimetype
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if ($mimetype == 'text/html' || $mimetype == 'application/atom+xml') {
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$categories = $entry->getElementsByTagName('category');
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foreach ($categories as $category) {
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if ($category->getAttribute('scheme') == 'http://schemas.google.com/g/2005#kind') {
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$type = $category->getAttribute('label');
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if (strlen(strstr($type, 'folder')) > 0) {
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return 'httpd/unix-directory';
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} else if (strlen(strstr($type, 'document')) > 0) {
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return 'application/vnd.oasis.opendocument.text';
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} else if (strlen(strstr($type, 'spreadsheet')) > 0) {
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return 'application/vnd.oasis.opendocument.spreadsheet';
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} else if (strlen(strstr($type, 'presentation')) > 0) {
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return 'application/vnd.oasis.opendocument.presentation';
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} else if (strlen(strstr($type, 'drawing')) > 0) {
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return 'application/vnd.oasis.opendocument.graphics';
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} else {
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// If nothing matches return text/html, all native Google Docs resources can be exported as text/html
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return 'text/html';
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}
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}
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}
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}
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return $mimetype;
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}
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return false;
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}
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public function free_space($path) {
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if ($dom = $this->sendRequest('https://docs.google.com/feeds/metadata/default', 'GET')) {
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// NOTE: Native Google Docs resources don't count towards quota
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$total = $dom->getElementsByTagNameNS('http://schemas.google.com/g/2005', 'quotaBytesTotal')->item(0)->nodeValue;
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$used = $dom->getElementsByTagNameNS('http://schemas.google.com/g/2005', 'quotaBytesUsed')->item(0)->nodeValue;
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return $total - $used;
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@ -263,9 +335,8 @@ class OC_Filestorage_Google {
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return false;
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}
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public function search($query){}
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public function getLocalFile($path) {
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return false;
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public function search($query) {
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}
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}
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