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- <?php
- if (!defined('GNUSOCIAL')) { exit(1); }
- class File_thumbnail extends Managed_DataObject
- {
- public $__table = 'file_thumbnail';
- public $file_id;
- public $urlhash;
- public $url;
- public $filename;
- public $width;
- public $height;
- public $modified;
- const URLHASH_ALG = 'sha256';
- public static function schemaDef()
- {
- return array(
- 'fields' => array(
- 'file_id' => array('type' => 'int', 'not null' => true, 'description' => 'thumbnail for what URL/file'),
- 'urlhash' => array('type' => 'varchar', 'length' => 64, 'description' => 'sha256 of url field if non-empty'),
- 'url' => array('type' => 'text', 'description' => 'URL of thumbnail'),
- 'filename' => array('type' => 'text', 'description' => 'if stored locally, filename is put here'),
- 'width' => array('type' => 'int', 'description' => 'width of thumbnail'),
- 'height' => array('type' => 'int', 'description' => 'height of thumbnail'),
- 'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
- ),
- 'primary key' => array('file_id', 'width', 'height'),
- 'indexes' => array(
- 'file_thumbnail_file_id_idx' => array('file_id'),
- 'file_thumbnail_urlhash_idx' => array('urlhash'),
- ),
- 'foreign keys' => array(
- 'file_thumbnail_file_id_fkey' => array('file', array('file_id' => 'id')),
- )
- );
- }
-
- public static function saveNew($data, $file_id) {
- if (!empty($data->thumbnail_url)) {
-
-
- self::saveThumbnail($file_id,
- $data->thumbnail_url,
- $data->thumbnail_width,
- $data->thumbnail_height);
- } else if ($data->type == 'photo') {
-
-
- self::saveThumbnail($file_id,
- $data->url,
- $data->width,
- $data->height);
- }
- }
-
- static function byFile(File $file, $notNullUrl=true) {
- $thumb = new File_thumbnail();
- $thumb->file_id = $file->getID();
- if ($notNullUrl) {
- $thumb->whereAdd('url IS NOT NULL');
- }
- $thumb->limit(1);
- if (!$thumb->find(true)) {
- throw new NoResultException($thumb);
- }
- return $thumb;
- }
-
- static function saveThumbnail($file_id, $url, $width, $height, $filename=null)
- {
- $tn = new File_thumbnail;
- $tn->file_id = $file_id;
- $tn->url = $url;
- $tn->filename = $filename;
- $tn->width = intval($width);
- $tn->height = intval($height);
- $tn->insert();
- return $tn;
- }
- static function path($filename)
- {
-
- return File::path($filename);
- }
- static function url($filename)
- {
-
- return File::url($filename);
- }
- public function getPath()
- {
- $filepath = self::path($this->filename);
- if (!file_exists($filepath)) {
- throw new FileNotFoundException($filepath);
- }
- return $filepath;
- }
- public function getUrl()
- {
- if (!empty($this->filename) || $this->getFile()->isLocal()) {
-
- $url = common_local_url('attachment_thumbnail', array('attachment'=>$this->file_id));
- if (strpos($url, '?') === false) {
- $url .= '?';
- }
- return $url . http_build_query(array('w'=>$this->width, 'h'=>$this->height));
- }
-
- return $this->url;
- }
- public function getHeight()
- {
- return $this->height;
- }
- public function getWidth()
- {
- return $this->width;
- }
-
- 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)
- {
- if (!empty($this->filename) && file_exists(File_thumbnail::path($this->filename))) {
- $deleted = @unlink(self::path($this->filename));
- if (!$deleted) {
- common_log(LOG_ERR, sprintf('Could not unlink existing file: "%s"', self::path($this->filename)));
- }
- }
- return parent::delete($useWhere);
- }
- public function getFile()
- {
- return File::getByID($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 (!$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;
- }
- }
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