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<?php |
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/** |
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* This file is part of Http |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slick\Http\Message\Server; |
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/** |
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* UploadedFilesFactory |
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* |
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* @package Slick\Http\Message\Server |
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*/ |
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class UploadedFilesFactory |
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{ |
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/** |
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* Creates the uploaded file objects within a normalized files tree |
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* |
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* @return array|UploadedFile[] |
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*/ |
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public static function createFiles() |
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{ |
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$fixer = new static(); |
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$files = $fixer->saneFilesArray($_FILES); |
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$fixed = []; |
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foreach ($files as $key => $data) { |
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$fixed[$key] = $fixer->createUploadedFile($data); |
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} |
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return $fixed; |
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} |
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/** |
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* Helper function to recursively create UploadedFile objects |
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* |
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* @param array $data |
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* |
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* @return array|UploadedFile |
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*/ |
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private function createUploadedFile($data) |
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{ |
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if (array_key_exists('tmp_name', $data)) { |
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return UploadedFile::create($data); |
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} |
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$result = []; |
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foreach ($data as $key => $datum) { |
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$result[$key] = $this->createUploadedFile($datum); |
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} |
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return $result; |
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} |
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/** |
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* Fixes the $_FILES array structure |
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* |
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* For each subtree in the file tree that's more than one item deep: |
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* For each leaf of the subtree: |
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* $leaf[a][b][c] ... [y][z] -> $result[z][a][b][c] ... [y] |
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* |
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* |
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* @see: https://stackoverflow.com/a/24397828/1271488 |
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* |
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* @param array $files |
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* @return array |
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*/ |
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private function saneFilesArray(array $files) |
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{ |
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$result = []; |
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foreach ($files as $field => $data) { |
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foreach ($data as $key => $val) { |
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$result[$field] = []; |
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if (!is_array($val)) { |
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$result[$field] = $data; |
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continue; |
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} |
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$res = []; |
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$this->filesFlip($res, [], $data); |
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$result[$field] += $res; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Move the innermost key to the outer spot |
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* |
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* @param array $result |
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* @param array $keys |
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* @param mixed $value |
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*/ |
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private function filesFlip(&$result, $keys, $value) |
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{ |
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if (is_array($value)) { |
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foreach ($value as $k => $v) { |
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$newKeys = $keys; |
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array_push($newKeys, $k); |
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$this->filesFlip($result, $newKeys, $v); |
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} |
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return; |
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} |
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$res = $value; |
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// Move the innermost key to the outer spot |
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$first = array_shift($keys); |
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array_push($keys, $first); |
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foreach (array_reverse($keys) as $kk) { |
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// You might think we'd say $res[$kk] = $res, but $res starts |
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// out not as an array |
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$res = array($kk => $res); |
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} |
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$result = $this->arrayMergeRecursive($result, $res); |
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} |
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/** |
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* Recursively merge provided arrays |
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* |
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* @param array|string $array1 |
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* @param array|string $array2 |
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* |
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* @return array |
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*/ |
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private function arrayMergeRecursive($array1, $array2) |
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{ |
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if (!is_array($array1) or !is_array($array2)) { |
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return $array2; |
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} |
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foreach ($array2 as $sKey2 => $sValue2) { |
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$array1[$sKey2] = $this->arrayMergeRecursive(@$array1[$sKey2], $sValue2); |
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} |
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return $array1; |
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} |
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} |
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slickframework /
http
