/**
* Gets an image by id sized and rotated based on the passed params. If the file
* doesn't exist, it is created using the imager class and stored in cache dir. Every
* call after that will load the file directly.
*
* When sizing an image with the same width and height, it will be scaled down to the closest
* width/height and then cropped.
*
* To size an image to a specific width, set the width value needed and the height value to 0.
* This ensures the specified width is met, and the height is adjusted proportionally. The same
* can be done by setting the height needed and the width to 0.
*
* @param $id int The id of image to get
* @param $rotation int The degrees to rotate the image, can be null
* @param $widthOrPercent int When by itself, represents percent to increase/decrease size.
* When used with the height param, represents the image width.
* @param $height int The height to size the image.
*
* @return string The relative path from ROOT to the file, if it exists. Boolean false otherwise.
*/
public function render($id, $rotation = null, $widthOrPercent = null, $height = null)
{
try {
if ($image = Media::m('file')->find($id)) {
$ext = pathinfo($image->name, PATHINFO_EXTENSION);
$cachedFilename = str_replace('.' . $ext, sprintf('_%d.%s', $id . $rotation . $widthOrPercent . $height, $ext), $image->name);
$cachedFullPath = ROOT . Media::getFilesPath() . Media::getCachePath() . $cachedFilename;
if (!file_exists($cachedFullPath)) {
$origFullPath = ROOT . Media::getFilesPath() . $image->path . $image->name;
Media_Imager::open($origFullPath);
if (!is_null($widthOrPercent) && is_null($height)) {
Media_Imager::percent($widthOrPercent);
} elseif (!is_null($widthOrPercent) && !is_null($height)) {
$adaptive = $widthOrPercent == 0 || $height == 0 ? false : true;
Media_Imager::resize($widthOrPercent, $height, $adaptive);
}
if (!is_null($rotation) && $rotation > 0) {
Media_Imager::rotate($rotation);
}
Media_Imager::save($cachedFullPath);
}
return Media::getFilesPath() . Media::getCachePath() . $cachedFilename;
}
} catch (Exception $e) {
Log::error('media', $e->getMessage());
}
return false;
}
/**
* TODO Comments.
*/
public static function render($id, $rotation = null, $widthOrPercent = null, $height = null)
{
$image = Media::m('file')->find($id);
$path = Media::image()->render($id, $rotation, $widthOrPercent, $height);
header('Content-Type: ' . $image->mime_type);
readfile(ROOT . $path);
die;
}
/**
* Returns the relative path from ROOT to the file.
*/
public function getPath($id)
{
if ($file = Media::m('file')->find($id)) {
$path = Media::getFilesPath() . $file->path . $file->name;
if (file_exists($path)) {
return $path;
}
}
return false;
}
/**
* TODO Comments.
*/
public function embed($id, $width = 560, $height = 345)
{
if ($video = Media::m('url')->find($id)) {
$data = unserialize($video->data);
if (stristr($video->url, 'youtube')) {
return sprintf('<iframe width="%d" height="%d" src="http://www.youtube.com/embed/%s" frameborder="0" allowfullscreen></iframe>', $width, $height, $data['id']);
}
if (stristr($video->url, 'vimeo')) {
return sprintf('<iframe src="http://player.vimeo.com/video/%s?title=0&byline=0&portrait=0" width="%d" height="%d" frameborder="0" webkitAllowFullScreen allowFullScreen></iframe>', $data['id'], $width, $height);
}
}
}
/**
* Deletes the file associated with the given id from the system.
*
* @param $id int The id of the file to delete.
* @return boolean
*/
public static function delete($id)
{
if ($file = Media::m('file')->find($id)) {
$filePath = ROOT . self::getFilesPath() . $file->path . $file->name;
if (file_exists($filePath)) {
@unlink($filePath);
}
self::clearCache($file);
if (Media::m('file')->delete($id)) {
return true;
}
}
return false;
}
/**
* Forces a download of the file based on the given id. If the file doesn't
* exist, 404 is shown.
*/
public static function download($id)
{
$file = Media::m('file')->find($id);
if ($file) {
$filePath = Media::getFilesPath() . $file->path . $file->name;
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . $file->name);
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . $file->size);
ob_clean();
flush();
readfile($file_path);
exit;
}
return ERROR_404;
}
/**
* Saves a file from a url.
*
* @param string $url The full url for the file to save.
* @param string $type The file type to store in the db (file, image, video)
*
* @return Returns the media id if created successfully, boolean false otherwise.
*/
public static function saveFromUrl($url, $type)
{
if (!($nameAndPath = self::_getNewNameAndPath(basename($url)))) {
return false;
}
list($newFilename, $fullPath) = $nameAndPath;
if ($urlContent = file_get_contents($url)) {
if (file_put_contents($fullPath, $urlContent)) {
$id = Media::m('file')->insert(array('name' => $newFilename, 'path' => Media::getMediaPath(), 'size' => filesize($fullPath), 'mime_type' => self::_determineMimeType($fullPath), 'file_type' => $type));
return $id;
} else {
self::$_error = 'Unable to save ' . $type . ' from URL.';
}
} else {
self::$_error = 'Unable to read file contents from URL.';
Dev::debug('media', 'ERROR: Cant save from url: ' . $url);
}
return false;
}
