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| 1 | <?php declare(strict_types=1); |
| 2 | /* |
| 3 | * This file is part of Aplus Framework Validation Library. |
| 4 | * |
| 5 | * (c) Natan Felles <natanfelles@gmail.com> |
| 6 | * |
| 7 | * For the full copyright and license information, please view the LICENSE |
| 8 | * file that was distributed with this source code. |
| 9 | */ |
| 10 | namespace Framework\Validation; |
| 11 | |
| 12 | use Framework\Helpers\ArraySimple; |
| 13 | |
| 14 | /** |
| 15 | * Class FilesValidator. |
| 16 | * |
| 17 | * @package validation |
| 18 | */ |
| 19 | class FilesValidator |
| 20 | { |
| 21 | /** |
| 22 | * @var array<string,mixed> |
| 23 | */ |
| 24 | protected static array $files; |
| 25 | |
| 26 | /** |
| 27 | * Get $_FILES in a re-organized way. |
| 28 | * |
| 29 | * @return array<string,mixed> |
| 30 | */ |
| 31 | protected static function getOrganizedFiles() : array |
| 32 | { |
| 33 | return static::$files ?? (static::$files = ArraySimple::files()); |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @param string $field |
| 38 | * |
| 39 | * @return array<string,mixed>|null |
| 40 | */ |
| 41 | protected static function getFile(string $field) : array | null |
| 42 | { |
| 43 | $files = static::getOrganizedFiles(); |
| 44 | return ArraySimple::value($field, $files); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Validates file is uploaded. |
| 49 | * |
| 50 | * @param string $field |
| 51 | * @param array<string,mixed> $data |
| 52 | * |
| 53 | * @return bool |
| 54 | */ |
| 55 | public static function uploaded(string $field, array $data = []) : bool |
| 56 | { |
| 57 | $file = static::getFile($field); |
| 58 | if ($file === null) { |
| 59 | return false; |
| 60 | } |
| 61 | return $file['error'] === \UPLOAD_ERR_OK && \is_uploaded_file($file['tmp_name']); |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Validates file size. |
| 66 | * |
| 67 | * @param string $field |
| 68 | * @param array<string,mixed> $data |
| 69 | * @param int $kilobytes |
| 70 | * |
| 71 | * @return bool |
| 72 | */ |
| 73 | public static function maxSize(string $field, array $data, int $kilobytes) : bool |
| 74 | { |
| 75 | $uploaded = static::uploaded($field); |
| 76 | if ( ! $uploaded) { |
| 77 | return false; |
| 78 | } |
| 79 | $file = static::getFile($field); |
| 80 | return $file['size'] <= ($kilobytes * 1024); |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Validates file accepted MIME types. |
| 85 | * |
| 86 | * @param string $field |
| 87 | * @param array<string,mixed> $data |
| 88 | * @param string ...$allowedTypes |
| 89 | * |
| 90 | * @return bool |
| 91 | */ |
| 92 | public static function mimes(string $field, array $data, string ...$allowedTypes) : bool |
| 93 | { |
| 94 | $uploaded = static::uploaded($field); |
| 95 | if ( ! $uploaded) { |
| 96 | return false; |
| 97 | } |
| 98 | $file = static::getFile($field); |
| 99 | $mimeType = \mime_content_type($file['tmp_name']); |
| 100 | return \in_array($mimeType, $allowedTypes, true); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Validates file accepted extensions. |
| 105 | * |
| 106 | * NOTE: For greater security use the {@see FilesValidator::mimes()} method |
| 107 | * to filter the file type. |
| 108 | * |
| 109 | * @param string $field |
| 110 | * @param array<string,mixed> $data |
| 111 | * @param string ...$allowedExtensions |
| 112 | * |
| 113 | * @return bool |
| 114 | */ |
| 115 | public static function ext(string $field, array $data, string ...$allowedExtensions) : bool |
| 116 | { |
| 117 | $uploaded = static::uploaded($field); |
| 118 | if ( ! $uploaded) { |
| 119 | return false; |
| 120 | } |
| 121 | $file = static::getFile($field); |
| 122 | foreach ($allowedExtensions as $extension) { |
| 123 | if (\str_ends_with($file['name'], '.' . $extension)) { |
| 124 | return true; |
| 125 | } |
| 126 | } |
| 127 | return false; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Validates file is an image. |
| 132 | * |
| 133 | * @param string $field |
| 134 | * @param array<string,mixed> $data |
| 135 | * |
| 136 | * @return bool |
| 137 | */ |
| 138 | public static function image(string $field, array $data = []) : bool |
| 139 | { |
| 140 | $uploaded = static::uploaded($field); |
| 141 | if ( ! $uploaded) { |
| 142 | return false; |
| 143 | } |
| 144 | $file = static::getFile($field); |
| 145 | $mime = \mime_content_type($file['tmp_name']) ?: 'application/octet-stream'; |
| 146 | return \str_starts_with($mime, 'image/'); |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Validates image max dimensions. |
| 151 | * |
| 152 | * @param string $field |
| 153 | * @param array<string,mixed> $data |
| 154 | * @param int $width |
| 155 | * @param int $height |
| 156 | * |
| 157 | * @return bool |
| 158 | */ |
| 159 | public static function maxDim(string $field, array $data, int $width, int $height) : bool |
| 160 | { |
| 161 | $isImage = static::image($field); |
| 162 | if ( ! $isImage) { |
| 163 | return false; |
| 164 | } |
| 165 | $file = static::getFile($field); |
| 166 | $sizes = \getimagesize($file['tmp_name']); |
| 167 | return ! ($sizes === false || $sizes[0] > $width || $sizes[1] > $height); |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Validates image min dimensions. |
| 172 | * |
| 173 | * @param string $field |
| 174 | * @param array<string,mixed> $data |
| 175 | * @param int $width |
| 176 | * @param int $height |
| 177 | * |
| 178 | * @return bool |
| 179 | */ |
| 180 | public static function minDim(string $field, array $data, int $width, int $height) : bool |
| 181 | { |
| 182 | $isImage = static::image($field); |
| 183 | if ( ! $isImage) { |
| 184 | return false; |
| 185 | } |
| 186 | $file = static::getFile($field); |
| 187 | $sizes = \getimagesize($file['tmp_name']); |
| 188 | return ! ($sizes === false || $sizes[0] < $width || $sizes[1] < $height); |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * Validates image dimensions. |
| 193 | * |
| 194 | * @param string $field |
| 195 | * @param array<string,mixed> $data |
| 196 | * @param int $width |
| 197 | * @param int $height |
| 198 | * |
| 199 | * @return bool |
| 200 | */ |
| 201 | public static function dim(string $field, array $data, int $width, int $height) : bool |
| 202 | { |
| 203 | $isImage = static::image($field); |
| 204 | if ( ! $isImage) { |
| 205 | return false; |
| 206 | } |
| 207 | $file = static::getFile($field); |
| 208 | $sizes = \getimagesize($file['tmp_name']); |
| 209 | return ! ($sizes === false || $sizes[0] !== $width || $sizes[1] !== $height); |
| 210 | } |
| 211 | } |