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<?php |
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/** |
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* File containing the class {@see \Mailcode\Commands\Command\ShowURL\AutoTrackingID}. |
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* |
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* @package Mailcode |
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* @subpackage Commands |
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* @see \Mailcode\Commands\Command\ShowURL\AutoTrackingID |
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*/ |
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declare(strict_types=1); |
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namespace Mailcode\Commands\Command\ShowURL; |
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use Mailcode\Interfaces\Commands\Validation\TrackingIDInterface; |
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/** |
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* Generates a tracking ID for a URL, used when a |
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* `showurl` command's tracking is enabled, but no |
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* tracking ID is specified. |
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* |
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* @package Mailcode |
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* @subpackage Commands |
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* @author Sebastian Mordziol <[email protected]> |
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*/ |
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class AutoTrackingID |
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{ |
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private static int $linkCounter = 0; |
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/** |
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* @var array<int,string> |
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*/ |
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private static array $generated = array(); |
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/** |
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* @var callable|NULL |
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*/ |
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private static $customGenerator = null; |
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/** |
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* Generates an ID for the specified command. |
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* Subsequent calls for the same command will |
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* return the same ID. |
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* |
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* @param TrackingIDInterface $command |
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* @return string |
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*/ |
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public static function generate(TrackingIDInterface $command) : string |
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{ |
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$instanceID = $command->getInstanceID(); |
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if(isset(self::$generated[$instanceID])) |
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{ |
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return self::$generated[$instanceID]; |
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} |
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$trackingID = self::generateIDString($command); |
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self::$generated[$instanceID] = $trackingID; |
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return $trackingID; |
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} |
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/** |
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* Sets the callback used to auto-generate tracking IDs |
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* for URLs. It gets the mailcode command as sole parameter, |
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* and must return a tracking ID string. |
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* |
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* @param callable $generator |
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* @return void |
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*/ |
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public static function setGenerator(callable $generator) : void |
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{ |
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self::$customGenerator = $generator; |
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} |
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public static function resetGenerator() : void |
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{ |
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self::$customGenerator = null; |
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} |
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public static function hasCustomGenerator() : bool |
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{ |
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return isset(self::$customGenerator); |
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} |
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private static function generateIDString(TrackingIDInterface $command) : string |
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{ |
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if(isset(self::$customGenerator)) |
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{ |
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$result = call_user_func(self::$customGenerator, $command); |
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if(is_string($result)) |
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{ |
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return $result; |
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} |
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} |
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return self::generateDefault(); |
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} |
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public static function generateDefault() : string |
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{ |
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self::$linkCounter++; |
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return 'link-'.self::$linkCounter; |
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} |
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} |
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Mistralys /
mailcode
