Solved Matomo domain bug and refactored

roles/nginx-modifier-matomo/README.md

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+# Nginx Matomo Tracking Role
+
+This Ansible role automates the integration of Matomo tracking code into Nginx-served websites. It simplifies the process of adding the Matomo analytics tracking script and image tracker to all your web pages served through Nginx.
+
+## Features
+- Automated insertion of Matomo tracking script into the `</head>` tag of HTML pages.
+- Integration of a noscript image tracker before the `</body>` tag for tracking users with JavaScript disabled.
+- Configuration to apply changes on every request, ensuring that dynamic content and single-page applications are also tracked.
+
+## Requirements
+- Nginx installed on the target server.
+- Matomo analytics platform set up and accessible.
+
+## Dependencies
+- None. This role is designed to be included in Nginx server block configurations.
+
+## Customization
+You can customize the tracking script and the noscript image tracker by editing the `matomo-tracking.js.j2` and `matomo.subfilter.conf.j2` templates.
+
+## Author Information
+This role was created in 2023 by [Kevin Veen Birkenbach](https://www.veen.world/), providing a seamless way to add Matomo analytics to any website served via Nginx.

roles/nginx-modifier-matomo/meta/main.yml

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+dependencies:
+  - docker-matomo
+  - nginx

roles/nginx-modifier-matomo/tasks/main.yml

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+- name: "Relevant variables for role: {{ role_path | basename }}"
+  debug:
+    msg:
+      domain: "{{ domain }}"
+      base_domain: "{{ base_domain }}"
+      verification_url: "{{ verification_url }}"
+  when: enable_debug | bool
+
+- name: Check if site {{ domain }} is allready registered at Matomo
+  uri:
+    url:            "{{verification_url}}"
+    method:         GET
+    return_content: yes
+    status_code:    200
+    validate_certs: yes
+  register:         site_check
+
+- name: Set matomo_site_id to Null
+  set_fact:
+    matomo_site_id: Null
+
+- name: Set fact for site ID if site already exists
+  set_fact:
+    matomo_site_id: "{{ site_check.json[0].idsite }}"
+  when: "(site_check.json | length) > 0"
+
+- name: Add site to Matomo and get ID if not exists
+  uri:
+    url: "https://{{ domains.matomo }}/index.php"
+    method: POST
+    body: "module=API&method=SitesManager.addSite&siteName={{ base_domain }}&urls=https://{{ base_domain }}&token_auth={{ matomo_auth_token }}&format=json"
+    body_format: form-urlencoded
+    status_code: 200
+    return_content: yes
+    validate_certs: yes
+  register: add_site
+  when: "matomo_site_id is not defined or matomo_site_id is none"
+
+- name: Set fact for site ID if site was added
+  set_fact:
+    matomo_site_id: "{{ add_site.json.value }}"
+  when: "matomo_site_id is not defined or matomo_site_id is none"
+
+- name: Set the Matomo tracking code from a template file
+  set_fact:
+    matomo_tracking_code: "{{ lookup('template', 'matomo-tracking.js.j2') }}"
+
+- name: Set the tracking code as a one-liner
+  set_fact:
+    matomo_tracking_code_one_liner: "{{ matomo_tracking_code | regex_replace('\\n', '') | regex_replace('\\s+', ' ') }}"

roles/nginx-modifier-matomo/templates/matomo-tracking.conf.j2

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+# Deactivate CSP header
+add_header Content-Security-Policy: "";
+
+# sub filters to integrate matomo tracking code in nginx websites
+sub_filter '</body>' '<noscript><p><img src="//matomo.{{primary_domain}}/matomo.php?idsite={{matomo_site_id}}&rec=1" style="border:0;" alt="" /></p></noscript></body>';

roles/nginx-modifier-matomo/templates/matomo-tracking.js.j2

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+var _paq = window._paq = window._paq || [];
+_paq.push(["setDocumentTitle", document.domain + "/" + document.title]);
+_paq.push(["setCookieDomain", "*.{{base_domain}}"]);
+_paq.push(["setDomains", ["*.{{base_domain}}"]]);
+_paq.push(["enableCrossDomainLinking"]);
+_paq.push(["trackPageView"]);
+_paq.push(["trackAllContentImpressions"]);
+_paq.push(["enableLinkTracking"]);
+(function() {
+  var u="//{{domains.matomo}}/";
+  _paq.push(["setTrackerUrl", u+"matomo.php"]);
+  _paq.push(["setSiteId", "{{matomo_site_id}}"]);
+  var d=document, g=d.createElement("script"), s=d.getElementsByTagName("script")[0];
+  g.async=true; g.src=u+"matomo.js"; s.parentNode.insertBefore(g,s);
+})();

roles/nginx-modifier-matomo/templates/script.j2

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+<script>{{matomo_tracking_code_one_liner}}</script>

roles/nginx-modifier-matomo/vars/main.yml

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+base_domain:      "{{ domain | regex_replace('^(?:.*\\.)?(.+\\..+)$', '\\1') }}"
+verification_url: "https://{{domains.matomo}}/index.php?module=API&method=SitesManager.getSitesIdFromSiteUrl&url=https://{{base_domain}}&format=json&token_auth={{matomo_auth_token}}"