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<?php |
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/** |
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* |
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* PayPal Donation extension for the phpBB Forum Software package. |
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* |
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* @copyright (c) 2015-2025 Skouat |
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* @license GNU General Public License, version 2 (GPL-2.0) |
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* |
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*/ |
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namespace skouat\ppde\helpers; |
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use phpbb\language\language; |
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use phpbb\request\request; |
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/** |
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* Helper for handling post data |
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*/ |
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class post_data_helper |
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{ |
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/** @var language */ |
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protected $language; |
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/** @var request */ |
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protected $request; |
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/** |
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* Constructor |
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* |
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* @param language $language Language object |
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* @param request $request Request object |
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*/ |
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public function __construct( |
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language $language, |
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request $request |
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) |
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{ |
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$this->language = $language; |
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$this->request = $request; |
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} |
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/** |
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* Get post data from request |
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* |
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* @param array $data_ary Data array |
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* @return array Post data |
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*/ |
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public function get_post_data(array $data_ary): array |
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{ |
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$name = $data_ary['name']; |
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$default = $data_ary['default']; |
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// Handle default value |
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if (is_array($default)) |
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{ |
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$default = $default[0]; |
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$multibyte = $default[1] ?? false; |
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} |
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else |
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{ |
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$multibyte = false; |
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} |
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// Get value from request |
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$value = $this->request->variable($name, $default, $multibyte); |
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return [ |
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'name' => $name, |
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'value' => $value, |
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'condition_check' => $data_ary['condition_check'] ?? [], |
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'force_settings' => $data_ary['force_settings'] ?? [], |
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'txn_errors' => '', |
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]; |
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} |
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/** |
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* Check post data against conditions |
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* |
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* @param array $post_data Post data |
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* @return array Checked post data |
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*/ |
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public function check_post_data(array $post_data): array |
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{ |
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if (empty($post_data['condition_check'])) |
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{ |
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return $post_data; |
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} |
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foreach ($post_data['condition_check'] as $check_type => $check_value) |
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{ |
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$post_data = $this->apply_check($post_data, $check_type, $check_value); |
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} |
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return $post_data; |
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} |
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/** |
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* Apply check to post data |
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* |
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* @param array $post_data Post data |
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* @param string $check_type Check type |
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* @param mixed $check_value Check value |
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* @return array Updated post data |
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*/ |
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private function apply_check(array $post_data, string $check_type, $check_value): array |
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{ |
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switch ($check_type) |
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{ |
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case 'ascii': |
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if ($check_value && !$this->is_ascii($post_data['value'])) |
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{ |
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$post_data['txn_errors'] .= '<br>' . $this->language->lang('INVALID_TXN_ASCII', $post_data['name']); |
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} |
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break; |
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case 'content': |
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if (!in_array($post_data['value'], $check_value, true)) |
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{ |
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$post_data['txn_errors'] .= '<br>' . $this->language->lang('INVALID_TXN_CONTENT', $post_data['name']); |
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} |
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break; |
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case 'empty': |
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if ($check_value === false && empty($post_data['value'])) |
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{ |
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$post_data['txn_errors'] .= '<br>' . $this->language->lang('INVALID_TXN_EMPTY', $post_data['name']); |
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} |
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break; |
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case 'length': |
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$post_data = $this->check_length($post_data, $check_value); |
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break; |
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} |
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return $post_data; |
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} |
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/** |
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* Check if string contains only ASCII characters |
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* |
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* @param string $string String to check |
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* @return bool Whether string contains only ASCII characters |
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*/ |
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private function is_ascii(string $string): bool |
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{ |
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return (bool) preg_match('/^[\x00-\x7F]*$/', $string); |
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} |
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/** |
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* Check length of value |
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* |
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* @param array $post_data Post data |
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* @param array $check_value Check value |
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* @return array Updated post data |
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*/ |
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private function check_length(array $post_data, array $check_value): array |
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{ |
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$value_length = utf8_strlen($post_data['value']); |
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$expected_length = $check_value['value']; |
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$operator = $check_value['operator'] ?? '=='; |
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$valid = false; |
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switch ($operator) |
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{ |
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case '==': |
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$valid = $value_length == $expected_length; |
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break; |
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case '<=': |
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$valid = $value_length <= $expected_length; |
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break; |
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case '>=': |
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$valid = $value_length >= $expected_length; |
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break; |
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} |
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if (!$valid) |
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{ |
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$post_data['txn_errors'] .= '<br>' . $this->language->lang('INVALID_TXN_LENGTH', $post_data['name']); |
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} |
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return $post_data; |
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} |
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/** |
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* Set function to apply to post data |
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* |
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* @param array $post_data Post data |
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* @return mixed Modified value |
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*/ |
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public function set_func(array $post_data) |
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{ |
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$value = $post_data['value']; |
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foreach ($post_data['force_settings'] as $func => $func_value) |
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{ |
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switch ($func) |
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{ |
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case 'length': |
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$value = utf8_substr($value, 0, (int) $func_value); |
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break; |
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case 'lowercase': |
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$value = utf8_strtolower($value); |
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break; |
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case 'strtotime': |
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$value = strtotime($value); |
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break; |
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} |
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} |
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return $value; |
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} |
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} |
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