How does matomo create the tracking URL? I want to change it

GeneClackman · January 15, 2021, 11:14am

We have a matomo site in our intranet under analytics.intra.<domain>.com
The tracking js etc are publicly available under analytics.<domain>.com.

I want the tracking code to contain the publicly available URL of course. But the code that’s being generated when I add a new site always contains the intra domain, even though the trusted URLs are configured with the pubic URL first - I have not found any other place where the URL is configured.

Please advise, anything helps! Thank you.

Lukas · January 15, 2021, 11:34am

Hi,

So you want to modify how the default tracking code that Matomo generates looks like (of couse you can always modify the tracking code when copying it into the site)

A custom plugin similar to this should work:

github.com

innocraft/plugin-ForceSSL/blob/3e6fc74382e5fb63aa58471db0b22833e359bc1d/ForceSSL.php#L13-L24


public function registerEvents()
{
    return array(
        'Tracker.getJavascriptCode' => 'forceSslInJsCode'
    );
}
public function forceSslInJsCode(&$codeImpl, $parameters)
{
    $codeImpl['protocol'] = 'https://';
}

github.com

matomo-org/matomo/blob/fd14a155269038f6fe12ce31db20f8ebffaf00c5/core/Tracker/TrackerCodeGenerator.php#L166-L188


/**
 * Triggered when generating JavaScript tracking code server side. Plugins can use
 * this event to customise the JavaScript tracking code that is displayed to the
 * user.
 *
 * @param array &$codeImpl An array containing snippets of code that the event handler
 *                         can modify. Will contain the following elements:
 *
 *                         - **idSite**: The ID of the site being tracked.
 *                         - **piwikUrl**: The tracker URL to use.
 *                         - **options**: A string of JavaScript code that customises
 *                                        the JavaScript tracker.
 *                         - **optionsBeforeTrackerUrl**: A string of Javascript code that customises
 *                                        the JavaScript tracker inside of anonymous function before
 *                                        adding setTrackerUrl into paq.
 *                         - **protocol**: Piwik url protocol.
 *                         - **loadAsync**: boolean whether piwik.js should be loaded synchronous or asynchronous
 *
 *                         The **httpsPiwikUrl** element can be set if the HTTPS
 *                         domain is different from the normal domain.

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GeneClackman · January 15, 2021, 11:45am

Thank you for your quick reply, I highly appreciate it!
I only really want to change one bit of the URL - a dedicated plugin seems a bit overkill? Where does matomo pull the URL it puts in the code from? Because if it’s the current URL, I’d just put the web interface on the public URL and be done with it. I’m not a dev, I’m the infrastructure guy tasked with setting this up.

modifying the tracking code after copying is problematic because users will do it and I don’t trust users with modifying code … you know how it is. They will mess it up and I will be the one to fix it afterwards

Lukas · January 15, 2021, 12:02pm

Hi,

The Matomo URL seems to come from here:

github.com

matomo-org/matomo/blob/065aca61efc7bec1108cf2eed60de2966995a616/core/SettingsPiwik.php#L179


        Config::getInstance()->General['autocomplete_min_sites']);
    return (int)$count;
}
/**
 * Returns the URL to this Piwik instance, eg. **http://demo.piwik.org/** or **http://example.org/piwik/**.
 *
 * @return string|false return false if no value is configured and we are in PHP CLI mode
 * @api
 */
public static function getPiwikUrl()
{
    $url = Option::get(self::OPTION_PIWIK_URL);
    $isPiwikCoreDispatching = defined('PIWIK_ENABLE_DISPATCH') && PIWIK_ENABLE_DISPATCH;
    if (Common::isPhpCliMode()
        // in case core:archive command is triggered (often with localhost domain)
        || SettingsServer::isArchivePhpTriggered()
        // When someone else than core is dispatching this request then we return the URL as it is read only
        || !$isPiwikCoreDispatching
    ) {

which seems to read the DB option piwikUrl.

Modifying that seems not that easy, so I’d recommend you to go the plugin way. It really just needs to be a really trivial plugin with less than 20 lines of code.

GeneClackman · January 15, 2021, 12:04pm

thanks again, appreciate it.

GeneClackman · January 15, 2021, 12:46pm

It is the current URL the Matomo GUI is called from btw. I moved Matomo to the public URL just for shits and giggles and voila - the URL is the the one without intra.