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https://github.com/kevinveenbirkenbach/computer-playbook.git
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Kevin Veen-Birkenbach
231fd567b3
Introduce sys-svc-cdn (cdn_paths/cdn_urls/cdn_dirs) and ensure CDN directories + latest symlink. Rename sys-srv-web-inj-* → sys-front-inj-*; update includes/templates; serve shared/per-app CSS & JS via CDN. Add lookup_plugins/local_mtime_qs.py for mtime-based cache busting; split CSS into default.css/bootstrap.css + optional per-app style.css. CSP: use style-src-elem; drop unsafe-inline for styles. Services: fix SYS_SERVICE_ALL_ENABLED bool and controlled flush. BREAKING CHANGE: role names changed; replace includes and references accordingly. Conversation: https://chatgpt.com/share/68b55494-9ec4-800f-b559-44707029141d
30 lines
1.8 KiB
Markdown
30 lines
1.8 KiB
Markdown
# sys-front-inj-logout
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This role injects a catcher that intercepts all logout elements in HTML pages served by Nginx and redirects them to a centralized logout endpoint via JavaScript.
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## Description
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The `sys-front-inj-logout` Ansible role automatically embeds a lightweight JavaScript snippet into your web application's HTML responses. This script identifies logout links, buttons, forms, and other elements, overrides their target URLs, and ensures users are redirected to a central OIDC logout endpoint, providing a consistent single sign‑out experience.
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## Overview
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- **Detection**: Scans the DOM for anchors (`<a>`), buttons, inputs, forms, `use` elements and any attributes indicating logout functionality.
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- **Override**: Rewrites logout URLs to point at your OIDC provider’s logout endpoint, including a redirect back to the application.
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- **Dynamic content support**: Uses a `MutationObserver` to handle AJAX‑loaded or dynamically injected logout elements.
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- **CSP integration**: Automatically appends the required script hash into your CSP policy via the role’s CSP helper.
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## Features
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- Seamless injection via Nginx `sub_filter` on `</head>`.
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- Automatic detection of various logout mechanisms (links, buttons, forms).
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- Centralized logout redirection for a unified user experience.
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- No changes required in application code.
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- Compatible with SPAs and dynamically generated content.
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- CSP‑friendly: manages script hash for you.
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## Further Resources
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- [OpenID Connect RP-Initiated Logout](https://openid.net/specs/openid-connect-session-1_0.html#RPLogout)
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- [Nginx `sub_filter` Module](http://nginx.org/en/docs/http/ngx_http_sub_module.html)
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- [Ansible Role Directory Structure](https://docs.ansible.com/ansible/latest/user_guide/playbooks_roles.html#role-directory-structure)
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