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1 | <?php |
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2 | |||
3 | /* |
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4 | * This file is part of the slince/upload package. |
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5 | * |
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6 | * (c) Slince <[email protected]> |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |||
12 | namespace Slince\Upload\Constraint; |
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13 | |||
14 | use Symfony\Component\HttpFoundation\File\UploadedFile; |
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15 | |||
16 | class SizeConstraint implements ConstraintInterface |
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17 | { |
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18 | /** |
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19 | * Maximum file size |
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20 | * @var int |
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21 | */ |
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22 | protected $maxSize; |
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23 | |||
24 | /** |
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25 | * Minimum file size |
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26 | * @var int |
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27 | */ |
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28 | protected $minSize; |
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29 | |||
30 | /** |
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31 | * Limit file size (use "B", "K", M", or "G") |
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32 | * @param int|string|null $minSize |
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33 | * @param int|string|null $maxSize |
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34 | */ |
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35 | public function __construct($minSize = null, $maxSize = null) |
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36 | { |
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37 | if ($minSize !== null) { |
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38 | $this->minSize = static::humanReadableToBytes($minSize); |
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39 | } |
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40 | if ($maxSize !== null) { |
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41 | $this->maxSize = static::humanReadableToBytes($maxSize); |
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42 | } |
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43 | } |
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44 | |||
45 | /** |
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46 | * {@inheritdoc} |
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47 | */ |
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48 | public function validate(UploadedFile $file) |
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49 | { |
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50 | $size = method_exists($file, 'getClientSize') ? |
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51 | $file->getClientSize() : $file->getSize(); |
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52 | |||
53 | return ($this->maxSize === null || $size <= $this->maxSize) |
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54 | && ($this->minSize === null || $size >= $this->minSize); |
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55 | } |
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56 | |||
57 | /** |
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58 | * {@inheritdoc} |
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59 | */ |
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60 | public function getErrorMessage(UploadedFile $file) |
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61 | { |
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62 | $message = null; |
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63 | if ($this->minSize && $this->maxSize) { |
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64 | $message = sprintf('File size should between %s and %s', $this->minSize, $this->maxSize); |
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65 | } elseif ($this->minSize === null) { |
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66 | $message = sprintf('File size should less than %s', $this->maxSize); |
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67 | } elseif ($this->maxSize === null) { |
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68 | $message = sprintf('File size should greater than %s', $this->minSize); |
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69 | } |
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70 | return $message; |
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71 | } |
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72 | |||
73 | /** |
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74 | * Convert human readable file size (e.g. "10K" or "3M") into bytes |
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75 | * @link https://github.com/brandonsavage/Upload/blob/master/src/Upload/File.php#L446 |
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76 | * @param string $input |
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77 | * @return int |
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78 | */ |
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79 | public static function humanReadableToBytes($input) |
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80 | { |
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81 | $number = (int)$input; |
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82 | $units = array( |
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83 | 'b' => 1, |
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84 | 'k' => 1024, |
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85 | 'm' => 1048576, |
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86 | 'g' => 1073741824 |
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87 | ); |
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88 | $unit = strtolower(substr($input, -1)); |
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89 | if (isset($units[$unit])) { |
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90 | $number = $number * $units[$unit]; |
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91 | } |
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92 | return $number; |
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93 | } |
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94 | } |
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95 |
This method has been deprecated. The supplier of the class has supplied an explanatory message.
The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.