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PrivacyWire - Cookie Management & async external asset loading

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---
Module Directory: https://modules.processwire.com/modules/privacy-wire/
Github: https://github.com/blaueQuelle/privacywire/
Packagist:https://packagist.org/packages/blauequelle/privacywire
Module Class Name: PrivacyWire
Changelog: https://github.com/blaueQuelle/privacywire/blob/master/Changelog.md

---

This module is (yet another) way for implementing a cookie management solution.

Of course there are several other possibilities:
- https://processwire.com/talk/topic/22920-klaro-cookie-consent-manager/
- https://github.com/webmanufaktur/CookieManagementBanner
- https://github.com/johannesdachsel/cookiemonster
- https://www.oiljs.org/
- ... and so on ...

In this module you can configure which kind of cookie categories you want to manage:
privacywire-module-config.thumb.jpg.5d002e91ceb1df770d6804b47c345fee.jpg
You can also enable the support for respecting the Do-Not-Track (DNT) header to don't annoy users, who already decided for all their browsing experience.

Currently there are four possible cookie groups:
- Necessary (always enabled)
- Functional
- Statistics
- Marketing
- External Media
All groups can be renamed, so feel free to use other cookie group names. I just haven't found a way to implement a "repeater like" field as configurable module field ...

When you want to load specific scripts ( like Google Analytics, Google Maps, ...) only after the user's content to this specific category of cookies, just use the following script syntax:

<script type="text/plain" data-type="text/javascript" data-category="statistics" data-src="/path/to/your/statistic/script.js"></script>
<script type="text/plain" data-type="text/javascript" data-category="marketing" data-src="/path/to/your/mareketing/script.js"></script>
<script type="text/plain" data-type="text/javascript" data-category="external_media" data-src="/path/to/your/external-media/script.js"></script>

<script type="text/plain" data-type="text/javascript" data-category="marketing">console.log("Inline scripts are also working!");</script>

The data-attributes (data-type and data-category) are required to get recognized by PrivacyWire. the data-attributes are giving hints, how the script shall be loaded, if the data-category is within the cookie consents of the user. These scripts are loaded asynchronously after the user made the decision.

If you want to give the users the possibility to change their consent, you can use the following Textformatter:

[[privacywire-choose-cookies]]

It's planned to add also other Textformatters to opt-out of specific cookie groups or delete the whole consent cookie.
You can also add a custom link to output the banner again with a link / button with following class:

<a href="#" class="privacywire-show-options">Show Cookie Options</a>

<button class="privacywire-show-options">Show Cookie Options</button>

 

I would love to hear your feedback 🙂

CHANGELOG

You can find the always up-to-date changelog file here.

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@joshua Nice! Thanks for sharing.

Can this module be used for multi-lingual sites? i.e. If I wanted to translate the banner texts and labels, is that possible out of the box? Or would I have to manually re-define the module's text fields as text/textarea language?

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Right now only the default values can be overwritten via language translation files.
But good hint - I'll add multi-language support for the config fields as well.

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Wow... thanks @joshua for this.

This is really a nice extension or more advanced and often asked for solution.
I wil definitely try this and check out what is possible with your module.

Great work!

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You can simply write your own CSS. In the module included are only some basic styles (less than 500 byte) which are directly included via JS. I tried to keep the module as slim as possible, the javascript has only 3.05 kb (gzipped) with all the functionality.
You can see an example of styling at our website or this website.

I usually only style the div.privacywire and the buttons to match the website styles.

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On 2/16/2020 at 4:07 PM, dragan said:

Can this module be used for multi-lingual sites? i.e. If I wanted to translate the banner texts and labels, is that possible out of the box? Or would I have to manually re-define the module's text fields as text/textarea language?

I today integrated the multi-language support for all the config fields.

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Update - Version 0.0.6

  • Minor CSS-Debugging (hiding the choose button when no cookie group is selected)
  • Added ProCache support for the script tag, when ProCache is installed
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Hi @joshua,

thank you for this great module! Would you consider a suggestion to enable an "option out" approach on the check-boxes. I know this is controversial, but some clients insist on having this. 

Another question, do you know if there's a way to have a granular control on the scripts loaded by Google Tag Manager?

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Hi Sergio,

thank you! 🙂 Glad you like the module. I actually never thought about the "opt out" approach as our customers or their "Data protection officer" requested the opt-in version.
Do you mean this approach for "pre-selecting" the checkboxes within the choose-window? That would be not to hard to implement, I could add an option for this to the module config.
More difficult would it be to automatically load all scripts on page load and only stop specific categories, when the user choose to opt-out.

About the Google Tag Manager: I have no experience in this kind of granular control within the GTM. Maybe this article could help?

 

 

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16 hours ago, Sergio said:

Another question, do you know if there's a way to have a granular control on the scripts loaded by Google Tag Manager?

With klaro consent manager you can gain control over the scripts loaded by GTM. See this issue. (I'm not affiliated with that project in any way, just using it on a couple of sites)

It is implemented via custom callback functions for each app that is managed by the consent manager. @joshua Maybe you could go a similar route to make configuration more flexible and tweakable? And thanks for putting this together!

And a suggestion for improvement: The type="optin" attribute is not a valid script attribute. So W3C Validator will not like it. You could use text/plain instead. That is not very semantic but could help to pass validator tests...

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6 hours ago, joshua said:

More difficult would it be to automatically load all scripts on page load and only stop specific categories, when the user choose to opt-out.

Yep, that's the challenge indeed. I need to take a look at how Klaro does that, as mentioned by @gebeer. 

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Hello everyone,

i managed to implement your module and integrade GTM with it like in the examples you've posted from your websites. Thank you for that!

Two things i would like to ask:

  1. It seems like that the Imprint and Privacy Policy URLs are ignoring the different languages. It doesn't matter if i use the full https-url or just /de/impressum/ | /en/imprint/ etc., it will always link me to the default language. Am i doing something wrong or is this a minor bug?
  2. Could you give an example how to handle external media like embedded YouTube-Videos or GoogleMaps? Unfortunately my skills and knowledge are not good enough to manage it on my own.

Thanks in advance and stay safe.

 

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Thanks for your feedback!

I'll look into bug about the privacy URL in different languages later today.
For embedding videos I'll also write an example and update the main post later with this.

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Thank you for this module. It works great.

I ran my webpage through W3C validation and it gave me these errors. Any suggestions on how to fix it? (Procache strips the quotes, but it's in the code). Thank you.

  1. Error: Bad value optin for attribute type on element script: Subtype missing.

    From line 1, column 30; to line 1, column 174

    l lang=en><script type=optin data-type=text/javascript data-category=statistics async data-src="https://www.googletagmanager.com/gtag/js?id=Ufkjdkfj"></scri

  2. Error: Element script must not have attribute async unless attribute src is also specified or unless attribute type is specified with value module.

    From line 1, column 30; to line 1, column 174

    l lang=en><script type=optin data-type=text/javascript data-category=statistics async data-src="https://www.googletagmanager.com/gtag/js?id=dfdfdfdf"></scri

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On 3/25/2020 at 4:20 PM, PK Mi43 said:

Hello everyone,

i managed to implement your module and integrade GTM with it like in the examples you've posted from your websites. Thank you for that!

Two things i would like to ask:

  1. It seems like that the Imprint and Privacy Policy URLs are ignoring the different languages. It doesn't matter if i use the full https-url or just /de/impressum/ | /en/imprint/ etc., it will always link me to the default language. Am i doing something wrong or is this a minor bug?
  2. Could you give an example how to handle external media like embedded YouTube-Videos or GoogleMaps? Unfortunately my skills and knowledge are not good enough to manage it on my own.

Thanks in advance and stay safe.

 

Thanks again for your feedback. I tested the privacy & imprint URLs and there really was a small bug about the multi language URLs.
When you update the module the multi language URLs should work now.

Example of external media:

<!-- This is the output container -->
<div id="player"></div>


<script type="optin" data-type="text/javascript" data-category="external_media">
        // 2. This code loads the IFrame Player API code asynchronously.
      var tag = document.createElement('script');

      tag.src = "https://www.youtube.com/iframe_api";
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);

      // 3. This function creates an <iframe> (and YouTube player)
      //    after the API code downloads.
      var player;
      function onYouTubeIframeAPIReady() {
        player = new YT.Player('player', {
          height: '360',
          width: '640',
          videoId: 'M7lc1UVf-VE',
          events: {
            'onReady': onPlayerReady,
            'onStateChange': onPlayerStateChange
          }
        });
      }

      // 4. The API will call this function when the video player is ready.
      function onPlayerReady(event) {
        event.target.playVideo();
      }

      // 5. The API calls this function when the player's state changes.
      //    The function indicates that when playing a video (state=1),
      //    the player should play for six seconds and then stop.
      var done = false;
      function onPlayerStateChange(event) {
        if (event.data == YT.PlayerState.PLAYING && !done) {
          setTimeout(stopVideo, 6000);
          done = true;
        }
      }
      function stopVideo() {
        player.stopVideo();
      }

    </script>

See this for more info about the YouTube API. The code above is from their example.

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On 3/27/2020 at 1:40 PM, montero4 said:

Thank you for this module. It works great.

I ran my webpage through W3C validation and it gave me these errors. Any suggestions on how to fix it? (Procache strips the quotes, but it's in the code). Thank you.

  1. Error: Bad value optin for attribute type on element script: Subtype missing.

    From line 1, column 30; to line 1, column 174

    l lang=en><script type=optin data-type=text/javascript data-category=statistics async data-src="https://www.googletagmanager.com/gtag/js?id=Ufkjdkfj"></scri

  2. Error: Element script must not have attribute async unless attribute src is also specified or unless attribute type is specified with value module.

    From line 1, column 30; to line 1, column 174

    l lang=en><script type=optin data-type=text/javascript data-category=statistics async data-src="https://www.googletagmanager.com/gtag/js?id=dfdfdfdf"></scri

That's right, currently the W3C does not validate.  @gebeer also mentioned this with the possible solution to use "text/plain" instead of "optin".
I'm planning to implement this solution, but as an optional addition to keep backwards compatibility for the users who already use the "optin" variant.

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Thank you for this module. I like it.

Is there a posibility to notice them who saves the cookie. To make a documentation of it. So far I know, the privacy policy says, you have to do that.

Its very strange and nonsensical in my opinion. Perhaps it ist possible to make a entry in logs. This would be very great.

Perhaps others know, what is realy necessary.   

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Hi @joshua,

I really like your module, especially the way how scripts are loaded asynchronous. Thank you for sharing!

It would be nice if you would use data-type="optin" instead of type="optin" in order to have valid HTML5.
 

Many greets!

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By the way: This is really helpful.

On 2/16/2020 at 1:07 PM, joshua said:

<img type="optin" data-category="marketing" data-src="https://via.placeholder.com/300x300">

@joshua Is there an opposite option to only show an element if a specific data-category isn't allowed? I want to display the link for managing cookies only to users if cookies of a certain kind are not allowed.

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Hello everyone,

first of all thank you @joshua for your example with external media. Greatly appreciated.

Right now i was tasked to integrate a Facebook Pixel onto a website. I assume i just do the same i did with Google Analytics and add the type/data-type/data-category "statistics" to the <script> tag. Easy!?

What about the following part:

<noscript>
  <img height="1" width="1" src="https://www.facebook.com/tr?id=yourfacebookid&ev=PageView&noscript=1"/>
</noscript>

Can/do i use the same procedure just with <noscript> instead of <script>, e. g.

<noscript type="optin" data-type="text/javascript" data-category="statistics">

or do i use the new (v0.0.5) implemented

<img type="optin" data-category="statistics" data-src="https://www.facebook.com/tr?id=yourfacebookid&ev=PageView&noscript=1" width="1" height="1">

without the <noscript></noscript> part?

 

Thanks in advance for your help, again. Have a great weekend and stay safe.

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I've updated the module today to add the W3C validation.
Starting now the type can be "text/plain" instead of "optin", the js will detect the elements via the data-category attribute. I will update the documentation.

On 4/9/2020 at 5:45 PM, DV-JF said:

Is there an opposite option to only show an element if a specific data-category isn't allowed?

That's a good point. Right now there isn't a detection for this but I'll think about a way to implement this.

 

On 4/4/2020 at 7:10 AM, hintraeger said:

Is there a posibility to notice them who saves the cookie. To make a documentation of it. So far I know, the privacy policy says, you have to do that.

When you add a button to change cookie preferences in your privacy policy, the selected options are pre-selected, so one could say it's "documented". I'm not sure if this is sufficient for your case?
 

On 4/17/2020 at 2:53 PM, PK Mi43 said:

Can/do i use the same procedure just with <noscript> instead of <script>, e. g.

That will not work, as the loading works via javascript. When javascript is disabled (and the <noscript> tag comes into play), PrivacyWire isn't loaded as well so it cannot load the <noscript> tag.

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On 5/10/2020 at 1:41 PM, joshua said:

That will not work, as the loading works via javascript. When javascript is disabled (and the <noscript> tag comes into play), PrivacyWire isn't loaded as well so it cannot load the <noscript> tag.

Thank you for your explanation, that makes sense. So would i leave it just as it is, or get rid of it alltogether since the cookie banner requires javascript?

Does anyone have experience with it, or would this be too much work to implement?

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Isn't it required in the new word of EU web bureaucracy to list every single cookie on demand (by category) and explain what is does, where it's from and can set it individually?

So, for example, in the same example category "my user settings" I can agree to remember a "my selected language" cookie but not another cookie with "my last page visited"?

As Borlabs cookie does it, or Klaro (kind of)?

Am I wrong with my understanding of the current GDPR law situation? Or is this implemented already and I just did not find it?

(Right now I am evaluation this module against using KLARO directy)

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      Finally we use $options array in the executeAction() method to get the values entered into those options fields to run the API script to remove the checked fields.
      There is one additional method that I didn't outline called: checkRequirements() - you can see it in action in the PageTableToRepeaterMatrix action. You can use this to prevent the action from running if certain requirements are not met.
      At the end of the executeAction() method you can populate $this->successMessage, or $this->failureMessage which will be returned after the action has finished.
       
      Populating options via URL parameters
      You can also populate the option parameters via URL parameters. You should split multiple values with a “|” character.
      You can either just pre-populate options:
      http://mysite.dev/processwire/setup/admin-actions/options?action=TemplateFieldsBatcher&templates=29|56&fields=219&addOrRemove=add
      or you can execute immediately:
      http://mysite.dev/processwire/setup/admin-actions/execute?action=TemplateFieldsBatcher&templates=29|56&fields=219&addOrRemove=add

      Note the “options” vs “execute” as the last path before the parameters.
       
      Automatic Backup / Restore
      Before any action is executed, a full database backup is automatically made. You have a few options to run a restore if needed:
      Follow the Restore link that is presented after an action completes Use the "Restore" submenu: Setup > Admin Actions > Restore Move the restoredb.php file from the /site/assets/cache/AdminActions/ folder to the root of your site and load in the browser Manually restore using the AdminActionsBackup.sql file in the /site/assets/cache/AdminActions/ folder I think all these features make it very easy to create custom admin data manipulation methods that can be shared with others and executed using a simple interface without needing to build a full Process Module custom interface from scratch. I also hope it will reduce the barriers for new ProcessWire users to create custom admin functionality.
      Please let me know what you think, especially if you have ideas for improving the interface, or the way actions are defined.
       
       
    • By joshua
      As we often use Matomo (former known as Piwik) instead of Google Analytics we wanted to embed Matomo not only in the template code but also via the ProcessWire backend.
      That's why I developed a tiny module for the implementation.
      The module provides the possibility to connect to an existing Matomo installation with the classical site tracking and also via the Matomo Tag Manager.
      If you have also PrivacyWire installed, you can tell MatomoWire to only load the script, if the user has accepted cookies via PrivacyWire.
      To offer an Opt-Out solution you can choose between the simple Opt-Out iFrame, delivered by your Matomo installation, or a button to choose cookies via PrivacyWire.
      You'll find the module both in the module directory and via github:
      ProcessWire Module Directory MatomoWire @ GitHub MatomoWire @ Packagist ->installable via composer require blauequelle/matomowire I'm looking forward to hear your feedback!


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