+ return $tn;
+ }
+
+ static function path($filename)
+ {
+ File::tryFilename($filename);
+
+ // NOTE: If this is left empty in default config, it will be set to File::path('thumb')
+ $dir = common_config('thumbnail', 'dir');
+
+ if (!in_array($dir[mb_strlen($dir)-1], ['/', '\\'])) {
+ $dir .= DIRECTORY_SEPARATOR;
+ }
+
+ return $dir . $filename;
+ }
+
+ static function url($filename)
+ {
+ File::tryFilename($filename);
+
+ // FIXME: private site thumbnails?
+
+ $path = common_config('thumbnail', 'path');
+ if (empty($path)) {
+ return File::url('thumb')."/{$filename}";
+ }
+
+ $protocol = (GNUsocial::useHTTPS() ? 'https' : 'http');
+ $server = common_config('thumbnail', 'server') ?: common_config('site', 'server');
+
+ if ($path[mb_strlen($path)-1] != '/') {
+ $path .= '/';
+ }
+ if ($path[0] != '/') {
+ $path = '/'.$path;
+ }
+
+ return $protocol.'://'.$server.$path.$filename;
+ }
+
+ public function getFilename()
+ {
+ return File::tryFilename($this->filename);
+ }
+
+ /**
+ *
+ * @return string full filesystem path to the locally stored thumbnail file
+ * @throws
+ */
+ public function getPath()
+ {
+ $oldpath = File::path($this->getFilename());
+ $thumbpath = self::path($this->getFilename());
+
+ // If we have a file in our old thumbnail storage path, move (or copy) it to the new one
+ // (if the if/elseif don't match, we have a $thumbpath just as we should and can return it)
+ if (file_exists($oldpath) && !file_exists($thumbpath)) {
+ try {
+ // let's get the filename of the File, to check below if it happens to be identical
+ $file_filename = $this->getFile()->getFilename();
+ } catch (NoResultException $e) {
+ // reasonably the function calling us will handle the following as "File_thumbnail entry should be deleted"
+ throw new FileNotFoundException($thumbpath);
+ } catch (InvalidFilenameException $e) {
+ // invalid filename in getFile()->getFilename(), just
+ // means the File object isn't stored locally and that
+ // means it's safe to move it below.
+ $file_filename = null;
+ }
+
+ if ($this->getFilename() === $file_filename) {
+ // special case where thumbnail file exactly matches stored File filename
+ common_debug('File filename and File_thumbnail filename match on '.$this->file_id.', copying instead');
+ copy($oldpath, $thumbpath);
+ } elseif (!rename($oldpath, $thumbpath)) {
+ common_log(LOG_ERR, 'Could not move thumbnail from '._ve($oldpath).' to '._ve($thumbpath));
+ throw new ServerException('Could not move thumbnail from old path to new path.');
+ } else {
+ common_log(LOG_DEBUG, 'Moved thumbnail '.$this->file_id.' from '._ve($oldpath).' to '._ve($thumbpath));
+ }
+ } elseif (!file_exists($thumbpath)) {
+ throw new FileNotFoundException($thumbpath);
+ }
+
+ return $thumbpath;
+ }
+
+ public function getUrl()
+ {
+ if (!empty($this->filename) || $this->getFile()->isLocal()) {
+ // A locally stored File, so we can dynamically generate a URL.
+ $url = common_local_url('attachment_thumbnail', array('attachment'=>$this->file_id));
+ if (strpos($url, '?') === false) {
+ $url .= '?';
+ }
+ return $url . http_build_query(array('w'=>$this->width, 'h'=>$this->height));
+ }
+
+ // No local filename available, return the remote URL we have stored
+ return $this->url;
+ }
+
+ public function getHeight()
+ {
+ return $this->height;
+ }
+
+ public function getWidth()
+ {
+ return $this->width;
+ }
+
+ /**
+ * @throws UseFileAsThumbnailException from File_thumbnail->getUrl() for stuff like animated GIFs
+ */
+ public function getHtmlAttrs(array $orig=array(), $overwrite=true)
+ {
+ $attrs = [
+ 'height' => $this->getHeight(),
+ 'width' => $this->getWidth(),
+ 'src' => $this->getUrl(),
+ ];
+ return $overwrite ? array_merge($orig, $attrs) : array_merge($attrs, $orig);
+ }
+
+ public function delete($useWhere=false)
+ {
+ try {
+ $thumbpath = self::path($this->getFilename());
+ // if file does not exist, try to delete it
+ $deleted = !file_exists($thumbpath) || @unlink($thumbpath);
+ if (!$deleted) {
+ common_log(LOG_ERR, 'Could not unlink existing thumbnail file: '._ve($thumbpath));
+ }
+ } catch (InvalidFilenameException $e) {
+ common_log(LOG_ERR, 'Deleting object but not attempting deleting file: '._ve($e->getMessage()));
+ }
+
+ return parent::delete($useWhere);
+ }
+
+ public function getFile()
+ {
+ return File::getByID($this->file_id);
+ }
+
+ public function getFileId()
+ {
+ return $this->file_id;
+ }
+
+ static public function hashurl($url)
+ {
+ if (!mb_strlen($url)) {
+ throw new Exception('No URL provided to hash algorithm.');
+ }
+ return hash(self::URLHASH_ALG, $url);
+ }
+
+ public function onInsert()
+ {
+ $this->setUrlhash();
+ }
+
+ public function onUpdate($dataObject=false)
+ {
+ // if we have nothing to compare with OR it has changed from previous entry
+ if (!$dataObject instanceof Managed_DataObject || $this->url !== $dataObject->url) {
+ $this->setUrlhash();
+ }
+ }
+
+ public function setUrlhash()
+ {
+ $this->urlhash = mb_strlen($this->url)>0 ? self::hashurl($this->url) : null;