/**
* Decrypt the encrypted/signed file and return a valid File object
*
* @return mixed
*/
public function decrypt($dest = false) {
if ($dest) {
if (is_a($dest, 'File') || $dest instanceof Filestore\File) {
// Don't need to do anything! The object either is a File
// Or is an implmentation of the File interface.
}
else {
// Well it should be damnit!....
$file = $dest;
// Is the destination a directory or filename?
// If it's a directory just tack on this current file's basename.
if (substr($file, -1) == '/') {
$file .= $this->_file->getBaseFilename();
}
// Drop the .asc extension if it's there.
if ($this->_file->getExtension() == 'asc') $file = substr($file, 0, -4);
$dest = Filestore\Factory::File($file);
}
// And load up the contents!
$dest->putContents($this->decrypt());
return $dest;
}
else {
// Extract and return the file contents
ob_start();
passthru('gpg --homedir "' . GPG_HOMEDIR . '" --no-permission-warning --decrypt "' . $this->_file->getLocalFilename() . '"');
$content = ob_get_contents();
ob_end_clean();
return $content;
}
}
/**
* Get an array of the various resize components from a given dimension set.
* These include: width, height, mode, key.
*
* @param string|int $dimensions
* @param File $file
*
* @return array
*/
function get_resized_key_components($dimensions, $file){
// The legacy support for simply a number.
if (is_numeric($dimensions)) {
$width = $dimensions;
$height = $dimensions;
$mode = '';
}
elseif ($dimensions === null) {
$width = 300;
$height = 300;
$mode = '';
}
elseif($dimensions === false){
$width = false;
$height = false;
$mode = '';
}
else {
// Allow some special modifiers.
if(strpos($dimensions, '^') !== false){
// Fit the smallest dimension instead of the largest, (useful for overflow tricks)
$mode = '^';
$dimensions = str_replace('^', '', $dimensions);
}
elseif(strpos($dimensions, '!') !== false){
// Absolutely resize, regardless of aspect ratio
$mode = '!';
$dimensions = str_replace('!', '', $dimensions);
}
elseif(strpos($dimensions, '>') !== false){
// Only increase images.
$mode = '>';
$dimensions = str_replace('>', '', $dimensions);
}
elseif(strpos($dimensions, '<') !== false){
// Only decrease images.
$mode = '<';
$dimensions = str_replace('<', '', $dimensions);
}
else{
// Default mode
$mode = '';
}
// New method. Split on the "x" and that should give me the width/height.
$vals = explode('x', strtolower($dimensions));
$width = (int)$vals[0];
$height = (int)$vals[1];
}
$ext = $file->getExtension();
// Ensure that an extension is used if none present, (may happen with temporary files).
if(!$ext){
$ext = mimetype_to_extension($file->getMimetype());
}
// The basename is for SEO purposes, that way even resized images still contain the filename.
// The hash is just to ensure that no two files conflict, ie: /public/a/file1.png and /public/b/file1.png
// might conflict without this hash.
// Finally, the width and height dimensions are there just because as well; it gives more of a human
// touch to the file. :p
// Also, keep the original file extension, this way PNGs remain PNGs, GIFs remain GIFs, JPEGs remain JPEGs.
// This is critical particularly when it comes to animated GIFs.
$key = str_replace(' ', '-', $file->getBasename(true)) . '-' . $file->getHash() . '-' . $width . 'x' . $height . $mode . '.' . $ext;
// The directory can be used with the new File backend to create this file in a correctly nested subdirectory.
$dir = dirname($file->getFilename(false)) . '/';
if(substr($dir, 0, 7) == 'public/'){
// Replace the necessary prefix with a more useful one.
// Anything within public/ needs to be remapped to public/tmp
$dir = 'public/tmp/' . substr($dir, 7);
}
else{
// Everything else gets prepended to public/tmp/
// so if the original file is in themes/blah/imgs/blah.jpg,
// it will be copied to public/tmp/blah.jpg
$dir = 'public/tmp/';
}
return array(
'width' => $width,
'height' => $height,
'mode' => $mode,
'key' => $key,
'ext' => $ext,
'dir' => $dir,
);
}