/**
* Returns array('success'=>true) or array('error'=>'error message')
*/
function handleUpload($uploadDirectory, $replaceOldFile = FALSE)
{
elgg_load_library('elgg:shoutout');
if (!is_writable($uploadDirectory)) {
return array('error' => "Server error. Upload directory isn't writable.");
}
if (!$this->file) {
return array('error' => 'No files were uploaded.');
}
$size = $this->file->getSize();
if ($size == 0) {
return array('error' => 'File is empty');
}
if ($size > $this->sizeLimit) {
return array('error' => 'File is too large');
}
$pathinfo = pathinfo($this->file->getName());
$filename = $pathinfo['filename'];
//$filename = md5(uniqid());
$ext = $pathinfo['extension'];
if ($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)) {
$these = implode(', ', $this->allowedExtensions);
return array('error' => 'File has an invalid extension, it should be one of ' . $these . '.');
}
if (!$replaceOldFile) {
/// don't overwrite previous files that were uploaded
while (file_exists($uploadDirectory . $filename . '.' . $ext)) {
$filename .= rand(10, 99);
}
}
$full_file_path = $uploadDirectory . $filename . '.' . $ext;
if ($this->file->save($full_file_path)) {
$guid = elgg_get_logged_in_user_guid();
$upload_bits = explode('/', $uploadDirectory);
$time_bit = $upload_bits[count($upload_bits) - 2];
if (in_array($ext, array('png', 'jpg', 'jpeg', 'gif'))) {
$thumb = elgg_get_site_url() . 'shoutout/temporary_thumb/' . $guid . '/' . $time_bit . '/' . $filename . '.' . $ext;
} else {
$mime_type = shoutout_determine_mime_type($full_file_path);
$thumb = shoutout_get_file_icon_url($mime_type);
}
$delete = 'action/shoutout/attach/delete?guid=' . $guid . '&time_bit=' . $time_bit . '&filename=' . $filename . '.' . $ext;
return array('success' => true, 'uploadDirectory' => $time_bit, 'thumb' => $thumb, 'delete' => $delete);
} else {
return array('error' => 'Could not save uploaded file.' . 'The upload was cancelled, or server error encountered');
}
}
function shoutout_download_attachment($annotation_id)
{
$annotation = elgg_get_annotation_from_id($annotation_id);
if ($annotation) {
$entity_guid = $annotation->entity_guid;
if (get_entity($entity_guid)) {
list($time_bit, $ofn) = explode('|', $annotation->value);
$full_file_path = elgg_get_data_path() . shoutout_attach_make_file_matrix($annotation->owner_guid) . '/attachments/' . $time_bit . '/' . $ofn;
// determine mime type
$mime_type = shoutout_determine_mime_type($full_file_path);
header("Content-Type: {$mime_type}");
header("Content-Disposition: attachment; filename=\"{$ofn}\"");
$content = file_get_contents($full_file_path);
$splitString = str_split($content, 8192);
foreach ($splitString as $chunk) {
echo $chunk;
}
}
}
exit;
}
