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<?php |
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namespace Azine\EmailBundle\Services; |
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use Azine\EmailBundle\DependencyInjection\AzineEmailExtension; |
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use Azine\EmailBundle\Services\AzineEmailTwigExtension; |
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use Ramsey\Uuid\Uuid; |
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/** |
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* Implementation of the EmailOpenTrackingCodeBuilderInterface used to track email open events. |
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* |
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* This impelementation will create a html snippet with the image tracker code for |
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* either GoogleAnalytics or Piwik, depending on the configured tracking url |
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* ( azine_email_email_open_tracking_url) in your config.yml |
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* |
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* Class AzineEmailOpenTrackingCodeBuilder |
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* @package Azine\EmailBundle\Services |
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*/ |
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class AzineEmailOpenTrackingCodeBuilder implements EmailOpenTrackingCodeBuilderInterface { |
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/** |
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* @var string |
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*/ |
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protected $tracking_params_campaign_source; |
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/** |
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* @var string |
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*/ |
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protected $tracking_params_campaign_medium; |
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/** |
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* @var string |
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*/ |
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protected $tracking_params_campaign_content; |
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/** |
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* @var string |
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*/ |
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protected $tracking_params_campaign_name; |
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/** |
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* @var string |
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*/ |
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protected $tracking_params_campaign_term; |
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/** |
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* @var $string|null |
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*/ |
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private $trackingUrlTemplate; |
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/** |
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* @var string the html-code template |
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*/ |
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protected $imageHtmlCode = "<img src='%s' style='border:0' alt='' />"; |
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/** |
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* @param $trackingUrlTemplate the url configured in your config.yml or null if you didn't specify a tracking url. |
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* @param $parameters array with the parameter names for the campaign tracking |
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*/ |
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public function __construct($trackingUrlTemplate, $parameters){ |
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$this->trackingUrlTemplate = $trackingUrlTemplate; |
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$this->tracking_params_campaign_content = $parameters[AzineEmailExtension::TRACKING_PARAM_CAMPAIGN_CONTENT]; |
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$this->tracking_params_campaign_medium = $parameters[AzineEmailExtension::TRACKING_PARAM_CAMPAIGN_MEDIUM]; |
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$this->tracking_params_campaign_name = $parameters[AzineEmailExtension::TRACKING_PARAM_CAMPAIGN_NAME]; |
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$this->tracking_params_campaign_source = $parameters[AzineEmailExtension::TRACKING_PARAM_CAMPAIGN_SOURCE]; |
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$this->tracking_params_campaign_term = $parameters[AzineEmailExtension::TRACKING_PARAM_CAMPAIGN_TERM]; |
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} |
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/** |
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* @param $templateBaseId the template used for rendering the email (without the .html.twig or .txt.twig extension) |
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* @param array $campaignParams the campaign-parameters used for this email |
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* @param the $messageId the id of the message |
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* @param email $to to-recipient-email(s) or null |
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* @param email $cc cc-recipient-email(s) or null |
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* @param email $bcc bcc-recipient-email(s) or null |
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* |
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* @return null|string Email open tracking code for google analytics or piwik or null |
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*/ |
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public function getTrackingImgCode($templateBaseId, array $campaignParams, array $emailTemplateParams, $messageId, $to, $cc, $bcc){ |
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if($this->trackingUrlTemplate == null){ |
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return null; |
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} |
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$recipients = md5($this->merge($to, $cc, $bcc)); |
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$trackingUrl = ''; |
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if(strpos($this->trackingUrlTemplate, 'www.google-analytics.com') !== false) { |
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$trackingUrl = $this->getGoogleAnalyticsUrl($this->trackingUrlTemplate, $templateBaseId, $campaignParams, $emailTemplateParams, $messageId, $recipients); |
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} else { |
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$trackingUrl = $this->getPiwikUrl($this->trackingUrlTemplate, $templateBaseId, $campaignParams, $emailTemplateParams, $messageId, $recipients); |
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} |
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// return the html code for the tracking image |
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$imgTrackingCode = sprintf($this->imageHtmlCode, $trackingUrl); |
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return $imgTrackingCode; |
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} |
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/** |
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* concatenate all recipients into an array and implode with ';' to a string |
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* @param $to |
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* @param $cc |
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* @param $bcc |
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* @return string |
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*/ |
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protected function merge($to, $cc, $bcc){ |
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if($to && !is_array($to)){ |
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$to = array($to); |
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} |
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if(!is_array($cc)){ |
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$cc = array($cc); |
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} |
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if(!is_array($bcc)){ |
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$bcc = array($bcc); |
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} |
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$all = array_merge($to, $cc, $bcc); |
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return implode(";", $all); |
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} |
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/** |
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* Build tracking image code with an URL according to these sources: |
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* http://dyn.com/blog/tracking-email-opens-via-google-analytics/ |
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* https://developers.google.com/analytics/devguides/collection/protocol/v1/email#protocol |
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* |
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* @param $baseUrl string something like: https://www.google-analytics.com/collect?v=1&cm=email&t=event&ec=email&ea=open&tid=TRACKING_ID replace the TRACKING_ID with your google analytics tracking ID. |
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* @param $templateBaseId string |
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* @param array $campaignParams |
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* @param array $emailTemplateParams |
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* @param $messageId string |
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* @param $recipients string |
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*/ |
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protected function getGoogleAnalyticsUrl($baseUrl, $templateBaseId, array $campaignParams, array $emailTemplateParams, $messageId, $recipients){ |
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$url = $baseUrl. |
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"&uid=".$recipients. // anonymized id generated from the concatenated string of all recipients email addresses |
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"&cid=".Uuid::uuid4()->toString(). // random UUID |
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"&el=".$recipients. // anonymized id generated from the concatenated string of all recipients email addresses |
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"&dp=/email/".$templateBaseId. // the email-template used for this email |
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"&cs=".$this->getCampaignSource($campaignParams, $templateBaseId). // campaing source for this email |
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"&cn=".$this->getCampaignName($campaignParams). // campaign name for this email |
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"&z=".microtime(); // cache buster |
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return $url; |
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} |
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/** |
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* Build tracking image code with an URL according to these sources: |
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* |
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* |
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* @param $baseUrl string something like: https://your.host.com/piwik-directory/piwik.php?&rec=1&bots=1&e_c=email&e_a=open&e_v=1&idsite=SITE_ID replace the path to your piwik.php and the SITE_ID according to your needs. |
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* @param $templateBaseId string |
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* @param array $campaignParams |
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* @param array $emailTemplateParams |
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* @param $messageId string |
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* @param $recipients string |
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*/ |
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protected function getPiwikUrl($baseUrl, $templateBaseId, array $campaignParams, array $emailTemplateParams, $messageId, $recipients){ |
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$url = $baseUrl. |
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"&_id=".substr($recipients, 0, 16). // user: 16 characters hexadecimal string |
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"&url=/email/".$templateBaseId. // document path |
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"&rand=".microtime(). // cache buster |
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"&e_n=".$this->getCampaignSource($campaignParams, $templateBaseId). // event name => will be categorized with the / => e.g. email / newsletter |
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"&action_name=".$this->getCampaignName($campaignParams);// action name |
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return $url; |
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} |
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/** |
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* @param $campaignParams |
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* @param $templateId |
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* @return string if no source-value is defined in the $campaignParams, $templateId will be used. |
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*/ |
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protected function getCampaignSource($campaignParams, $templateId){ |
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if(array_key_exists($this->tracking_params_campaign_source, $campaignParams)){ |
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return $campaignParams[$this->tracking_params_campaign_source]; |
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} |
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return $templateId; |
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} |
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/** |
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* @param $campaignParams |
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* @param $templateId |
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* @return string if no name-value is defined in the $campaignParams, $templateId will be used. |
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*/ |
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protected function getCampaignName($campaignParams){ |
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if(array_key_exists($this->tracking_params_campaign_name, $campaignParams)){ |
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return $campaignParams[$this->tracking_params_campaign_name]; |
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} |
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return date("y-m-d"); |
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} |
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} |
azine /
email-bundle
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.