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<?php |
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namespace LeadThread\Upload; |
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use Illuminate\Http\UploadedFile; |
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use Storage; |
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use Exception; |
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use LeadThread\Upload\Models\File; |
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class Upload |
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{ |
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protected $config = []; |
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public function __construct() |
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{ |
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$this->config = config('upload'); |
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} |
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/** |
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* Takes an UploadedFile, stores it to the disk and records it in the database. |
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* @param UploadedFile $file The file to handle |
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* @return File The Eloquent Model for the file |
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*/ |
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public function create(UploadedFile $file) |
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{ |
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$fingerprint = $this->getFingerprint($file); |
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if ($this->config['hash']['enabled'] === true) { |
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$duplicate = File::where('fingerprint', $fingerprint)->first(); |
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if ($duplicate) { |
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return $duplicate; |
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} |
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} |
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$disk = $this->config['disk']; |
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$filename = $this->getRandomString(32); |
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$extension = $file->extension(); |
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$directory = $this->getRandomDirectory(); |
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$contents = file_get_contents($file); |
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$mime = mime_content_type($file->path()); |
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$path = "/{$directory}/{$filename}.{$extension}"; |
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$result = $this->getDiskInstance()->put($path, $contents); |
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if ($result === false) { |
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throw new Exception("Could not save the file on the disk! Disk: ".$disk); |
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} |
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$model = new File( |
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[ |
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"filename" => $filename, |
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"mime" => $mime, |
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"path" => $path, |
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"disk" => $disk, |
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"extension" => $extension, |
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"fingerprint" => $fingerprint, |
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] |
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); |
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$model->save(); |
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return $model; |
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} |
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/** |
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* Returns the storage disk instance to use |
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* @return Storage The Storage disk |
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*/ |
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protected function getDiskInstance() |
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{ |
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return Storage::disk($this->config['disk']); |
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} |
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/** |
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* Produces a random alphanumberic string |
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* @param integer $len The length that you want |
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* @return string A random alphanumberic string |
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*/ |
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protected function getRandomString($len = 16) |
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{ |
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$alphanum = array_merge(range('a', 'z'), range('0', '9')); |
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$str = ""; |
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for ($i = 0; $i < $len; $i++) { |
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$str.=$alphanum[array_rand($alphanum)]; |
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} |
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return $str; |
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} |
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/** |
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* Returns two random directories |
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* @return string A path with two directories: 'a/b', '1/g', '9/4', etc... |
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*/ |
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protected function getRandomDirectory() |
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{ |
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$directory1 = $this->getRandomString(1); |
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$directory2 = $this->getRandomString(1); |
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return "{$directory1}/{$directory2}"; |
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} |
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/** |
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* Returns the hash value of a file |
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* @param UploadedFile $file The file |
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* @return string The hash |
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*/ |
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protected function getFingerprint(UploadedFile $file) |
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{ |
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if ($this->config['hash']['enabled'] !== true) { |
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return null; |
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} |
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$algo = $this->config['hash']['algo'] ?: 'md5'; |
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if (!in_array($algo, hash_algos())) { |
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throw new Exception("The hashing algorithm '{$algo}' is not supported on this system", 1); |
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} |
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return hash_file($algo, $file->path()); |
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} |
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} |
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leadthread /
laravel-upload
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..