diff options
Diffstat (limited to 'Zotlabs/Storage/File.php')
| -rw-r--r-- | Zotlabs/Storage/File.php | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/Zotlabs/Storage/File.php b/Zotlabs/Storage/File.php new file mode 100644 index 000000000..2a2a8b938 --- /dev/null +++ b/Zotlabs/Storage/File.php @@ -0,0 +1,322 @@ +<?php + +namespace Zotlabs\Storage; + +use Sabre\DAV; + +/** + * @brief This class represents a file in DAV. + * + * It provides all functions to work with files in Red's cloud through DAV protocol. + * + * @extends \Sabre\DAV\Node + * @implements \Sabre\DAV\IFile + * + * @link http://github.com/friendica/red + * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT) + */ +class File extends DAV\Node implements DAV\IFile { + + /** + * The file from attach table. + * + * @var array + * data + * flags + * filename (string) + * filetype (string) + */ + private $data; + /** + * @see \Sabre\DAV\Auth\Backend\BackendInterface + * @var \RedMatrix\RedDAV\RedBasicAuth + */ + private $auth; + /** + * @var string + */ + private $name; + + /** + * Sets up the node, expects a full path name. + * + * @param string $name + * @param array $data from attach table + * @param &$auth + */ + public function __construct($name, $data, &$auth) { + $this->name = $name; + $this->data = $data; + $this->auth = $auth; + + logger(print_r($this->data, true), LOGGER_DATA); + } + + /** + * @brief Returns the name of the file. + * + * @return string + */ + public function getName() { + //logger(basename($this->name), LOGGER_DATA); + return basename($this->name); + } + + /** + * @brief Renames the file. + * + * @throw Sabre\DAV\Exception\Forbidden + * @param string $name The new name of the file. + * @return void + */ + public function setName($newName) { + logger('old name ' . basename($this->name) . ' -> ' . $newName, LOGGER_DATA); + + if ((! $newName) || (! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) { + logger('permission denied '. $newName); + throw new DAV\Exception\Forbidden('Permission denied.'); + } + + $newName = str_replace('/', '%2F', $newName); + + $r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND id = %d", + dbesc($newName), + dbesc($this->data['hash']), + intval($this->data['id']) + ); + } + + /** + * @brief Updates the data of the file. + * + * @param resource $data + * @return void + */ + public function put($data) { + logger('put file: ' . basename($this->name), LOGGER_DEBUG); + $size = 0; + + // @todo only 3 values are needed + $c = q("SELECT * FROM channel WHERE channel_id = %d AND channel_removed = 0 LIMIT 1", + intval($this->auth->owner_id) + ); + + $is_photo = false; + $album = ''; + + $r = q("SELECT flags, folder, os_storage, filename, is_photo FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1", + dbesc($this->data['hash']), + intval($c[0]['channel_id']) + ); + if ($r) { + if (intval($r[0]['os_storage'])) { + $d = q("select folder, data from attach where hash = '%s' and uid = %d limit 1", + dbesc($this->data['hash']), + intval($c[0]['channel_id']) + ); + if($d) { + if($d[0]['folder']) { + $f1 = q("select * from attach where is_dir = 1 and hash = '%s' and uid = %d limit 1", + dbesc($d[0]['folder']), + intval($c[0]['channel_id']) + ); + if($f1) { + $album = $f1[0]['filename']; + $direct = $f1[0]; + } + } + $fname = dbunescbin($d[0]['data']); + if(strpos($fname,'store') === false) + $f = 'store/' . $this->auth->owner_nick . '/' . $fname ; + else + $f = $fname; + + // @todo check return value and set $size directly + @file_put_contents($f, $data); + $size = @filesize($f); + logger('filename: ' . $f . ' size: ' . $size, LOGGER_DEBUG); + } + $gis = @getimagesize($f); + logger('getimagesize: ' . print_r($gis,true), LOGGER_DATA); + if(($gis) && ($gis[2] === IMAGETYPE_GIF || $gis[2] === IMAGETYPE_JPEG || $gis[2] === IMAGETYPE_PNG)) { + $is_photo = 1; + } + } + else { + // this shouldn't happen any more + $r = q("UPDATE attach SET data = '%s' WHERE hash = '%s' AND uid = %d", + dbescbin(stream_get_contents($data)), + dbesc($this->data['hash']), + intval($this->data['uid']) + ); + $r = q("SELECT length(data) AS fsize FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1", + dbesc($this->data['hash']), + intval($this->data['uid']) + ); + if ($r) { + $size = $r[0]['fsize']; + } + } + } + + // returns now() + $edited = datetime_convert(); + + $d = q("UPDATE attach SET filesize = '%s', is_photo = %d, edited = '%s' WHERE hash = '%s' AND uid = %d", + dbesc($size), + intval($is_photo), + dbesc($edited), + dbesc($this->data['hash']), + intval($c[0]['channel_id']) + ); + + if($is_photo) { + require_once('include/photos.php'); + $args = array( 'resource_id' => $this->data['hash'], 'album' => $album, 'os_path' => $f, 'filename' => $r[0]['filename'], 'getimagesize' => $gis, 'directory' => $direct ); + $p = photo_upload($c[0],get_app()->get_observer(),$args); + } + + // update the folder's lastmodified timestamp + $e = q("UPDATE attach SET edited = '%s' WHERE hash = '%s' AND uid = %d", + dbesc($edited), + dbesc($r[0]['folder']), + intval($c[0]['channel_id']) + ); + + // @todo do we really want to remove the whole file if an update fails + // because of maxfilesize or quota? + // There is an Exception "InsufficientStorage" or "PaymentRequired" for + // our service class from SabreDAV we could use. + + $maxfilesize = get_config('system', 'maxfilesize'); + if (($maxfilesize) && ($size > $maxfilesize)) { + attach_delete($c[0]['channel_id'], $this->data['hash']); + return; + } + + $limit = service_class_fetch($c[0]['channel_id'], 'attach_upload_limit'); + if ($limit !== false) { + $x = q("select sum(filesize) as total from attach where aid = %d ", + intval($c[0]['channel_account_id']) + ); + if (($x) && ($x[0]['total'] + $size > $limit)) { + logger('service class limit exceeded for ' . $c[0]['channel_name'] . ' total usage is ' . $x[0]['total'] . ' limit is ' . $limit); + attach_delete($c[0]['channel_id'], $this->data['hash']); + return; + } + } + } + + /** + * @brief Returns the raw data. + * + * @return string + */ + public function get() { + logger('get file ' . basename($this->name), LOGGER_DEBUG); + logger('os_path: ' . $this->os_path, LOGGER_DATA); + + $r = q("SELECT data, flags, os_storage, filename, filetype FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1", + dbesc($this->data['hash']), + intval($this->data['uid']) + ); + if ($r) { + // @todo this should be a global definition + $unsafe_types = array('text/html', 'text/css', 'application/javascript'); + + if (in_array($r[0]['filetype'], $unsafe_types)) { + header('Content-disposition: attachment; filename="' . $r[0]['filename'] . '"'); + header('Content-type: text/plain'); + } + + if (intval($r[0]['os_storage'])) { + $x = dbunescbin($r[0]['data']); + if(strpos($x,'store') === false) + $f = 'store/' . $this->auth->owner_nick . '/' . (($this->os_path) ? $this->os_path . '/' : '') . $x; + else + $f = $x; + return fopen($f, 'rb'); + } + return dbunescbin($r[0]['data']); + } + } + + /** + * @brief Returns the ETag for a file. + * + * An ETag is a unique identifier representing the current version of the file. + * If the file changes, the ETag MUST change. + * The ETag is an arbitrary string, but MUST be surrounded by double-quotes. + * + * Return null if the ETag can not effectively be determined. + * + * @return null|string + */ + public function getETag() { + $ret = null; + if ($this->data['hash']) { + $ret = '"' . $this->data['hash'] . '"'; + } + return $ret; + } + + /** + * @brief Returns the mime-type for a file. + * + * If null is returned, we'll assume application/octet-stream + * + * @return mixed + */ + public function getContentType() { + // @todo this should be a global definition. + $unsafe_types = array('text/html', 'text/css', 'application/javascript'); + if (in_array($this->data['filetype'], $unsafe_types)) { + return 'text/plain'; + } + return $this->data['filetype']; + } + + /** + * @brief Returns the size of the node, in bytes. + * + * @return int + * filesize in bytes + */ + public function getSize() { + return $this->data['filesize']; + } + + /** + * @brief Returns the last modification time for the file, as a unix + * timestamp. + * + * @return int last modification time in UNIX timestamp + */ + public function getLastModified() { + return datetime_convert('UTC', 'UTC', $this->data['edited'], 'U'); + } + + /** + * @brief Delete the file. + * + * This method checks the permissions and then calls attach_delete() function + * to actually remove the file. + * + * @throw \Sabre\DAV\Exception\Forbidden + */ + public function delete() { + logger('delete file ' . basename($this->name), LOGGER_DEBUG); + + if ((! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) { + throw new DAV\Exception\Forbidden('Permission denied.'); + } + + if ($this->auth->owner_id !== $this->auth->channel_id) { + if (($this->auth->observer !== $this->data['creator']) || intval($this->data['is_dir'])) { + throw new DAV\Exception\Forbidden('Permission denied.'); + } + } + + attach_delete($this->auth->owner_id, $this->data['hash']); + } +} |