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<?php |
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/* |
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* This file is part of the PHP-CRON-EXPR package. |
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* |
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* (c) Jitendra Adhikari <[email protected]> |
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* <https://github.com/adhocore> |
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* |
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* Licensed under MIT license. |
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*/ |
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namespace Ahc\Cron; |
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/** |
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* Cron segment validator. |
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* |
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* This class checks if a cron segment is valid. |
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* |
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* @author Jitendra Adhikari <[email protected]> |
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*/ |
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class Validator |
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{ |
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public function inRange($value, $offset) |
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{ |
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$parts = \explode('-', $offset); |
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return $parts[0] <= $value && $value <= $parts[1]; |
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} |
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public function inStep($value, $offset) |
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{ |
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$parts = \explode('/', $offset, 2); |
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if (empty($parts[1])) { |
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return false; |
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} |
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if (\strpos($offset, '*/') !== false || \strpos($offset, '0/') !== false) { |
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return $value % $parts[1] === 0; |
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} |
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$parts = \explode('/', $offset, 2); |
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$subparts = \explode('-', $parts[0], 2) + [1 => $value]; |
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return $this->inStepRange($value, $subparts[0], $subparts[1], $parts[1]); |
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} |
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public function inStepRange($value, $start, $end, $step) |
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{ |
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if (($start + $step) > $end) { |
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return false; |
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} |
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if ($start <= $value && $value <= $end) { |
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return \in_array($value, \range($start, $end, $step)); |
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} |
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return false; |
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} |
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/** |
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* Check if month modifiers [L C W #] are satisfied. |
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* |
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* @internal |
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* |
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* @param string $value |
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* @param array $time |
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* |
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* @return bool|null |
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*/ |
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public function isValidMonthDay($value, $time) |
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{ |
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if ($value == 'L') { |
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return $time[2] == $time[6]; |
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} |
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if ($pos = \strpos($value, 'W')) { |
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$value = \substr($value, 0, $pos); |
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$month = \str_pad($time[8], 2, '0', \STR_PAD_LEFT); |
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return $this->isClosestWeekDay($value, $month, $time); |
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} |
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} |
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protected function isClosestWeekDay($value, $month, $time) |
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{ |
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foreach ([0, -1, 1, -2, 2] as $i) { |
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$incr = $value + $i; |
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if ($incr < 1 || $incr > $time[6]) { |
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continue; |
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} |
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$incr = \str_pad($incr, 2, '0', \STR_PAD_LEFT); |
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$parts = \explode(' ', \date('N m j', \strtotime("{$time[5]}-$month-$incr"))); |
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if ($parts[0] < 6 && $parts[1] == $month) { |
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return $time[2] == $parts[2]; |
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} |
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} |
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// @codeCoverageIgnoreStart |
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return false; |
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// @codeCoverageIgnoreEnd |
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} |
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/** |
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* Check if week modifiers [L C W #] are satisfied. |
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* |
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* @internal |
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* |
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* @param string $value |
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* @param array $time |
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* |
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* @return bool|null |
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*/ |
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public function isValidWeekDay($value, $time) |
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{ |
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$month = \str_pad($time[8], 2, '0', \STR_PAD_LEFT); |
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if (\strpos($value, 'L')) { |
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return $this->isLastWeekDay($value, $month, $time); |
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} |
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if (!\strpos($value, '#')) { |
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return null; |
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} |
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list($day, $nth) = \explode('#', \str_replace('0#', '7#', $value)); |
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if (!$this->isNthWeekDay($day, $nth) || $time[9] != $day) { |
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return false; |
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} |
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return \intval($time[7] / 7) == $nth - 1; |
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} |
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protected function isLastWeekDay($value, $month, $time) |
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{ |
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$value = \explode('L', \str_replace('7L', '0L', $value)); |
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$decr = $time[6]; |
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for ($i = 0; $i < 7; $i++) { |
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$decr -= $i; |
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if (\date('w', \strtotime("{$time[5]}-$month-$decr")) == $value[0]) { |
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return $time[2] == $decr; |
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} |
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} |
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return false; |
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} |
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protected function isNthWeekDay($day, $nth) |
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{ |
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return !($day < 0 || $day > 7 || $nth < 1 || $nth > 5); |
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} |
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} |
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adhocore /
php-cron-expr
