public function run($id, $hash)
{
// Pause every request
sleep(1);
/**
* Validate both parameters:
* id - only digits > 0
* hash - only hex, exactly 32 chars long
*/
if (!preg_match('#^[1-9][0-9]*$#', $id)) {
throw new NotFoundHttpException(Yii::t('d3files', 'The requested file does not exist.'));
}
$hash = strtoupper($hash);
if (!preg_match('#^[0-9A-F]{32}$#', $hash)) {
throw new NotFoundHttpException(Yii::t('d3files', 'The requested file does not exist.'));
}
if (!($fileModelShared = D3filesModelShared::find()->where(['and', "id={$id}", "hash='{$hash}'", "left_loadings>0", "expire_date>=CURDATE()"])->one())) {
throw new NotFoundHttpException(Yii::t('d3files', 'The requested file does not exist.'));
}
if (!($fileModel = D3filesModel::findOne(['id' => $fileModelShared->d3files_model_id, 'deleted' => 0, 'is_file' => 1]))) {
throw new NotFoundHttpException(Yii::t('d3files', 'The requested file does not exist.'));
}
if (!($file = D3files::findOne($fileModel->d3files_id))) {
throw new NotFoundHttpException(Yii::t('d3files', 'The requested file does not exist.'));
}
if (!($fileModelName = D3filesModelName::findOne($fileModel->model_name_id))) {
throw new NotFoundHttpException(Yii::t('d3files', 'The requested file does not exist.'));
}
$fileModelShared->left_loadings--;
$fileModelShared->save();
$fileHandler = new FileHandler(['model_name' => $fileModelName->name, 'model_id' => $file->id, 'file_name' => $file->file_name]);
$fileHandler->download();
}
/**
* @param integer $id D3filesModel ID
* @param integer $expireDays the period of validity days
* @param integer $leftLoadings allowed download count
*
* @return array [integer D3filesModelShared ID, string hex hash]
*/
public function createSharedModel($id, $expireDays = null, $leftLoadings = null)
{
if (!($hashSalt = Yii::$app->getModule('d3files')->hashSalt)) {
return false;
}
if (!$expireDays && !($expireDays = Yii::$app->getModule('d3files')->sharedExpireDays)) {
$expireDays = self::SHARED_EXPIRE_DAYS;
}
if (!$leftLoadings && !($leftLoadings = Yii::$app->getModule('d3files')->sharedLeftLoadings)) {
$leftLoadings = self::SHARED_LEFT_LOADINGS;
}
if (!($fileModel = D3filesModel::findOne(['id' => $id, 'deleted' => 0, 'is_file' => 1]))) {
return false;
}
if (!($file = D3files::findOne($fileModel->d3files_id))) {
return false;
}
$fileModelShared = new D3filesModelShared();
$fileModelShared->d3files_model_id = $id;
$fileModelShared->expire_date = new \yii\db\Expression('DATE_ADD(CURDATE(), INTERVAL ' . $expireDays . ' DAY)');
$fileModelShared->left_loadings = $leftLoadings;
$fileModelShared->save();
$hashText = sprintf('%s:%s:%s', $fileModelShared->id, $file->file_name, $hashSalt);
$fileModelShared->hash = strtoupper(md5($hashText));
$fileModelShared->save();
return ['id' => $fileModelShared->id, 'hash' => $fileModelShared->hash];
}