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/*
* This file is part of the ICanBoogie package.
*
* (c) Olivier Laviale <olivier.laviale@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace ICanBoogie\HTTP;
use ICanBoogie\Accessor\AccessorTrait;
use ICanBoogie\ToArray;
/**
* Representation of a POST file.
*
* @property-read string $name Name of the file.
* @property-read string $type MIME type of the file.
* @property-read string $size Size of the file.
* @property-read string $error Error code, one of `UPLOAD_ERR_*`.
* @property-read string $error_message A formatted message representing the error.
* @property-read string $pathname Pathname of the file.
* @property-read string $extension The extension of the file. If any, the dot is included e.g.
* ".zip".
* @property-read string $unsuffixed_name The name of the file without its extension.
* @property-read bool $is_uploaded `true` if the file is uploaded, `false` otherwise.
* @property-read bool $is_valid `true` if the file is valid, `false` otherwise.
* See: {@link is_valid()}.
*/
class File implements ToArray
{
use AccessorTrait;
const MOVE_OVERWRITE = true;
const MOVE_NO_OVERWRITE = false;
/**
* Creates a {@link File} instance.
*
* @param array|string $properties_or_name An array of properties or a file identifier.
*
* @return File
*/
static public function from($properties_or_name)
{
$properties = [];
if (is_string($properties_or_name))
{
$properties = isset($_FILES[$properties_or_name])
? $_FILES[$properties_or_name]
: [ 'name' => basename($properties_or_name) ];
}
else if (is_array($properties_or_name))
{
$properties = $properties_or_name;
}
$properties = self::filter_initial_properties($properties);
return new static($properties);
}
/**
* Keeps only initial properties.
*
* @param array $properties
*
* @return array
*/
static private function filter_initial_properties(array $properties)
{
static $initial_properties = [ 'name', 'type', 'size', 'tmp_name', 'error', 'pathname' ];
return array_intersect_key($properties, array_combine($initial_properties, $initial_properties));
}
/**
* Format a string.
*
* @param string $format The format of the string.
* @param array $args The arguments.
* @param array $options Some options.
*
* @return \ICanBoogie\FormattedString|\ICanBoogie\I18n\FormattedString|string
*/
static private function format($format, array $args = [], array $options = [])
{
if (class_exists(\ICanBoogie\I18n\FormattedString::class, true))
{
return new \ICanBoogie\I18n\FormattedString($format, $args, $options); // @codeCoverageIgnore
}
if (class_exists(\ICanBoogie\FormattedString::class, true))
{
return new \ICanBoogie\FormattedString($format, $args, $options);
}
return \ICanBoogie\format($format, $args); // @codeCoverageIgnore
}
/*
* Instance
*/
/**
* Name of the file.
*
* @var string
*/
protected $name;
/**
* Returns the name of the file.
*
* @return string
*/
protected function get_name()
{
return $this->name;
}
/**
* Returns the name of the file, without its extension.
*
* @return string
*/
protected function get_unsuffixed_name()
{
return $this->name ? basename($this->name, $this->extension) : null;
}
protected $type;
/**
* Returns the type of the file.
*
* If the {@link $type} property was not defined during construct, the type
* is guessed from the name or the pathname of the file.
*
* @return string|null The MIME type of the file, or `null` if it cannot be determined.
*/
protected function get_type()
{
if (!empty($this->type))
{
return $this->type;
}
if (!$this->pathname && !$this->tmp_name)
{
return null;
}
return FileInfo::resolve_type($this->pathname ?: $this->tmp_name);
}
protected $size;
/**
* Returns the size of the file.
*
* If the {@link $size} property was not defined during construct, the size
* is guessed using the pathname of the file. If the pathname is not available the method
* returns `null`.
*
* @return int|false The size of the file or `false` if it cannot be determined.
*/
protected function get_size()
{
if (!empty($this->size))
{
return $this->size;
}
if ($this->pathname)
{
return filesize($this->pathname);
}
return null;
}
protected $tmp_name;
protected $error;
/**
* Whether the file is valid.
*
* A file is considered valid if it has no error code, if it has a size,
* if it has either a temporary name or a pathname and that the file actually exists.
*
* @return boolean `true` if the file is valid, `false` otherwise.
*/
protected function get_is_valid()
{
return !$this->error
&& $this->size
&& ($this->tmp_name || ($this->pathname && file_exists($this->pathname)));
}
protected $pathname;
/**
* Returns the pathname of the file.
*
* **Note:** If the {@link $pathname} property is empty, the {@link $tmp_name} property
* is returned.
*
* @return string
*/
protected function get_pathname()
{
return $this->pathname ?: $this->tmp_name;
}
protected function __construct(array $properties)
{
foreach ($properties as $property => $value)
{
$this->$property = $value;
}
if (!$this->name && $this->pathname)
{
$this->name = basename($this->pathname);
}
if (empty($this->type))
{
unset($this->type);
}
if (empty($this->size))
{
unset($this->size);
}
}
/**
* Returns an array representation of the instance.
*
* The following properties are exported:
*
* - {@link $name}
* - {@link $unsuffixed_name}
* - {@link $extension}
* - {@link $type}
* - {@link $size}
* - {@link $pathname}
* - {@link $error}
* - {@link $error_message}
*
* @return array
*/
public function to_array()
{
$error_message = $this->error_message;
if ($error_message !== null)
{
$error_message = (string) $error_message;
}
return [
'name' => $this->name,
'unsuffixed_name' => $this->unsuffixed_name,
'extension' => $this->extension,
'type' => $this->type,
'size' => $this->size,
'pathname' => $this->pathname,
'error' => $this->error,
'error_message' => $error_message
];
}
/**
* Returns the error code.
*
* @return string
*/
protected function get_error()
{
return $this->error;
}
/**
* Returns the message associated with the error.
*
* @return \ICanBoogie\I18n\FormattedString|\ICanBoogie\FormattedString|string|null
*/
protected function get_error_message()
{
switch ($this->error)
{
case UPLOAD_ERR_OK:
return null;
case UPLOAD_ERR_INI_SIZE:
return $this->format("Maximum file size is :size Mb", [ ':size' => (int) ini_get('upload_max_filesize') ]);
case UPLOAD_ERR_FORM_SIZE:
return $this->format("Maximum file size is :size Mb", [ ':size' => 'MAX_FILE_SIZE' ]);
case UPLOAD_ERR_PARTIAL:
return $this->format("The uploaded file was only partially uploaded.");
case UPLOAD_ERR_NO_FILE:
return $this->format("No file was uploaded.");
case UPLOAD_ERR_NO_TMP_DIR:
return $this->format("Missing a temporary folder.");
case UPLOAD_ERR_CANT_WRITE:
return $this->format("Failed to write file to disk.");
case UPLOAD_ERR_EXTENSION:
return $this->format("A PHP extension stopped the file upload.");
default:
return $this->format("An error has occurred.");
}
}
/**
* Returns the extension of the file, if any.
*
* **Note:** The extension includes the dot e.g. ".zip". The extension is always in lower case.
*
* @return string|null
*/
protected function get_extension()
{
$extension = pathinfo($this->name, PATHINFO_EXTENSION);
if (!$extension)
{
return null;
}
return '.' . strtolower($extension);
}
/**
* Checks if a file is uploaded.
*
* @return boolean `true` if the file is uploaded, `false` otherwise.
*/
protected function get_is_uploaded()
{
return $this->tmp_name && is_uploaded_file($this->tmp_name);
}
/**
* Checks if the file matches a MIME class, a MIME type, or a file extension.
*
* @param string|array $type The type can be a MIME class (e.g. "image"),
* a MIME type (e.g. "image/png"), or an extensions (e.g. ".zip"). An array can be used to
* check if a file matches multiple type e.g. `[ "image", ".mp3" ]`, which matches any type
* of image or files with the ".mp3" extension.
*
* @return bool `true` if the file matches (or `$type` is empty), `false` otherwise.
*/
public function match($type)
{
if (!$type)
{
return true;
}
if (is_array($type))
{
return $this->match_multiple($type);
}
if ($type{0} === '.')
{
return $type === $this->extension;
}
if (strpos($type, '/') === false)
{
return (bool) preg_match('#^' . preg_quote($type) . '/#', $this->type);
}
return $type === $this->type;
}
/**
* Checks if the file matches one of the types in the list.
*
* @param array $type_list
*
* @return bool `true` if the file matches, `false` otherwise.
*/
private function match_multiple(array $type_list)
{
foreach ($type_list as $type)
{
if ($this->match($type))
{
return true;
}
}
return false;
}
/**
* Moves the file.
*
* @param string $destination Pathname to the destination file.
* @param bool $overwrite Use {@link MOVE_OVERWRITE} to delete the destination before the file
* is moved. Defaults to {@link MOVE_NO_OVERWRITE}.
*
* @throws \Exception if the file failed to be moved.
*/
public function move($destination, $overwrite = self::MOVE_NO_OVERWRITE)
{
if (file_exists($destination))
{
if (!$overwrite)
{
throw new \Exception("The destination file already exists: $destination.");
}
unlink($destination);
}
if ($this->pathname)
{
if (!rename($this->pathname, $destination))
{
throw new \Exception("Unable to move file to destination: $destination."); // @codeCoverageIgnore
}
}
// @codeCoverageIgnoreStart
elseif (!move_uploaded_file($this->tmp_name, $destination))
{
throw new \Exception("Unable to move file to destination: $destination.");
}
// @codeCoverageIgnoreEnd
$this->pathname = $destination;
}
}