Added include svgs

app/app.py

@@ -11,6 +11,8 @@ FLASK_ENV = os.getenv("FLASK_ENV", "production")
 FLASK_PORT = int(os.getenv("PORT", 5000))
 print(f"🔧 Starting app on port {FLASK_PORT}, FLASK_ENV={FLASK_ENV}")
 
+from flask import Flask, render_template, current_app
+from markupsafe import Markup
 
 # Initialize the CacheManager
 cache_manager = CacheManager()
@@ -48,6 +50,18 @@ app = Flask(__name__)
 load_config(app)
 cache_icons_and_logos(app)
 
+@app.context_processor
+def utility_processor():
+    def include_svg(path):
+        full_path = os.path.join(current_app.root_path, 'static', path)
+        try:
+            with open(full_path, 'r', encoding='utf-8') as f:
+                svg = f.read()
+            return Markup(svg)
+        except IOError:
+            return Markup(f'<!-- SVG not found: {path} -->')
+    return dict(include_svg=include_svg)
+
 @app.before_request
 def reload_config_in_dev():
     """Reload config and recache icons before each request in development mode."""

app/static/css/default.css

@@ -44,8 +44,8 @@ a {
 }
 
 .card:hover {
-  background-color: var(--bs-secondary) !important;
-  color:            var(--bs-white) !important;
+  /* invert everything inside the card */
+  filter: invert(0.8) hue-rotate(144deg);
   transform: translateY(-4px);
   box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
 }
@@ -96,8 +96,11 @@ h3.footer-title {
   font-size: 1.3em;
 }
 
-.card-img-top i {
+.card-img-top i, .card-img-top svg{
   font-size: 100px;
+  fill: currentColor;
+  width: 100px;
+  height: auto;
 }
 
 div#navbarNavheader li.nav-item {

app/static/js/iframe.js

@@ -21,70 +21,76 @@ function syncIframeHeight() {
     }
 }
 
-// Function to open a URL in an iframe
+// Function to open a URL in an iframe (jQuery version mit 1500 ms Fade)
 function openIframe(url) {
-    enterFullscreen()
-    // Hide the container (and its scroll-container) so the iframe can appear in its place
-    if (scrollbarContainer) {
-        scrollbarContainer.style.display = 'none';
+    enterFullscreen();
+
+    var $container    = scrollbarContainer    ? $(scrollbarContainer)    : null;
+    var $customScroll = customScrollbar       ? $(customScrollbar)       : null;
+    var $main         = $(mainElement);
+
+    // Original-Content ausblenden mit 1500 ms
+    var promises = [];
+    if ($container)    promises.push($container.fadeOut(1500).promise());
+    if ($customScroll) promises.push($customScroll.fadeOut(1500).promise());
+
+    $.when.apply($, promises).done(function() {
+        // Iframe anlegen, falls noch nicht vorhanden
+        var $iframe = $main.find('iframe');
+        if ($iframe.length === 0) {
+            originalMainStyle = $main.attr('style') || null;
+            $iframe = $('<iframe>', {
+                width: '100%',
+                frameborder: 0,
+                scrolling: 'auto'
+            }).css({ overflow: 'auto', display: 'none' });
+            $main.append($iframe);
         }
 
-    // Hide any custom scrollbar element if present
-    if (customScrollbar) {
-        customScrollbar.style.display = 'none';
-    }
-
-    // Create or retrieve the iframe in the main element
-    let iframe = mainElement.querySelector("iframe");
-    if (!iframe) {
-        iframe = document.createElement("iframe");
-        iframe.width = "100%";
-        iframe.style.border = "none";
-        iframe.style.overflow = "auto";  // Enable internal scrolling
-        iframe.scrolling = "auto";
-        mainElement.appendChild(iframe);
+        // Quelle setzen und mit 1500 ms einblenden
+        $iframe
+            .attr('src', url)
+            .fadeIn(1500, function() {
                 syncIframeHeight();
-    }
+            });
 
-    // Set the iframe's source URL
-    iframe.src = url;
-
-    // Push the new URL state without reloading the page
-    const newUrl = new URL(window.location);
+        // URL-State pushen
+        var newUrl = new URL(window.location);
         newUrl.searchParams.set('iframe', url);
         window.history.pushState({ iframe: url }, '', newUrl);
+    });
 }
 
-// Function to restore the original content and show the container again
+// Function to restore the original content (jQuery version mit 1500 ms Fade)
 function restoreOriginal() {
-    // Remove the iframe from the DOM
-    const iframe = mainElement.querySelector("iframe");
-    if (iframe) {
-        iframe.remove();
-    }
+    var $main   = $(mainElement);
+    var $iframe = $main.find('iframe');
+    var $container    = scrollbarContainer    ? $(scrollbarContainer)    : null;
+    var $customScroll = customScrollbar       ? $(customScrollbar)       : null;
 
-    // Show the original container
-    if (scrollbarContainer) {
-        scrollbarContainer.style.display = '';
-    }
+    if ($iframe.length) {
+        // Iframe mit 1500 ms ausblenden, dann entfernen und Original einblenden
+        $iframe.fadeOut(1500, function() {
+            $iframe.remove();
 
-    // Restore any custom scrollbar
-    if (customScrollbar) {
-        customScrollbar.style.display = '';
-    }
+            if ($container)    $container.fadeIn(1500);
+            if ($customScroll) $customScroll.fadeIn(1500);
 
-    // Restore the original inline style of the main element
+            // Inline-Style des main-Elements zurücksetzen
             if (originalMainStyle !== null) {
-        mainElement.setAttribute("style", originalMainStyle);
+                $main.attr('style', originalMainStyle);
             } else {
-        mainElement.removeAttribute("style");
+                $main.removeAttr('style');
             }
 
-    // Update the URL to remove the iframe parameter
-    const newUrl = new URL(window.location);
-    newUrl.searchParams.delete("iframe");
+            // URL-Parameter entfernen
+            var newUrl = new URL(window.location);
+            newUrl.searchParams.delete('iframe');
             window.history.pushState({}, '', newUrl);
+        });
     }
+}
+
 
 // Initialize event listeners after DOM content is loaded
 document.addEventListener("DOMContentLoaded", function() {
@@ -105,12 +111,11 @@ document.addEventListener("DOMContentLoaded", function() {
         });
     });
 
-    // Clicking the header's H1 will restore the original view
-    const headerH1 = document.querySelector("header h1");
-    if (headerH1) {
-        headerH1.style.cursor = "pointer";
-        headerH1.addEventListener("click", restoreOriginal);
-    }
+    document.querySelectorAll(".js-restore").forEach(el => {
+        el.style.cursor = "pointer";
+        el.addEventListener("click", restoreOriginal);
+    });
+
 
     // On full page load, check URL parameters to auto-open an iframe
     window.addEventListener("load", function() {

app/templates/moduls/base.html.j2

@@ -3,7 +3,11 @@
     <head>
         <title>{{platform.titel}}</title>
         <meta charset="utf-8" >
-        <link rel="icon" type="image/x-icon" href="{{platform.favicon.cache}}">
+        <link
+            rel="icon"
+            type="image/x-icon"
+            href="{% if platform.favicon.cache %}{{ url_for('static', filename=platform.favicon.cache) }}{% endif %}"
+        >
         <!-- Bootstrap CSS only -->
         <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Zenh87qX5JnK2Jl0vWa8Ck2rdkQ2Bzep5IDxbcnCeuOxjzrPF/et3URy9Bv1WTRi" crossorigin="anonymous">
         <!-- Bootstrap JavaScript Bundle with Popper -->
@@ -16,6 +20,11 @@
         <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
         <link rel="stylesheet" href="{{ url_for('static', filename='css/default.css') }}">
         <link rel="stylesheet" href="{{ url_for('static', filename='css/custom_scrollbar.css') }}">
+        <!-- JQuery -->
+        <script
+        src="https://code.jquery.com/jquery-3.6.0.min.js"
+        crossorigin="anonymous">
+        </script>
     </head>
     <body
       {% if apod_bg %}
@@ -28,8 +37,11 @@
       {% endif %}
     >
         <div class="container">
-            <header class="header">
-              <img src="{{platform.logo.cache}}" alt="logo"/>
+            <header class="header js-restore">
+              <img
+                src="{{ url_for('static', filename=platform.logo.cache) }}"
+                alt="logo"
+              />
               <h1>{{platform.titel}}</h1>
               <h2>{{platform.subtitel}}</h2>
             </header>

app/templates/moduls/card.html.j2

@@ -2,10 +2,14 @@
   <div class="card h-100 d-flex flex-column">
     <div class="card-body d-flex flex-column">
       <div class="card-img-top">
-                {# Prioritize image, fallback to icon via onerror #}
-                {% if card.icon.cache %}
-                    <img src="{{ card.icon.cache }}" alt="{{ card.title }}" style="width:100px; height:auto;"
-                         onerror="this.style.display='none'; var icon=this.nextElementSibling; if(icon) icon.style.display='inline-block';">
+        {% if card.icon.cache and card.icon.cache.endswith('.svg') %}
+          {{ include_svg(card.icon.cache) }}
+        {% elif card.icon.cache %}
+          <img
+            src="{{ url_for('static', filename=card.icon.cache) }}"
+            alt="{{ card.title }}"
+            style="width:100px; height:auto;"
+            onerror="this.style.display='none'; this.nextElementSibling?.style.display='inline-block';">
           {% if card.icon.class %}
             <i class="{{ card.icon.class }}" style="display:none;"></i>
           {% endif %}
@@ -17,7 +21,9 @@
       <h3 class="card-title">{{ card.title }}</h3>
       <p class="card-text">{{ card.text }}</p>
       {% if card.url %}
-                <a href="{{ card.url }}" class="mt-auto btn btn-light stretched-link {% if card.iframe %}iframe-link{% endif %}">
+        <a
+          href="{{ card.url }}"
+          class="mt-auto btn btn-light stretched-link {% if card.iframe %}iframe-link{% endif %}">
           <i class="fa-solid fa-globe"></i> {{ card.link_text }}
         </a>
       {% else %}

app/templates/moduls/navigation.html.j2

@@ -54,9 +54,9 @@
     </button>
     <div class="collapse navbar-collapse" id="navbarNav{{menu_type}}">
         {% if menu_type == "header" %}
-        <a class="navbar-brand d-flex align-items-center d-none" id="navbar_logo" href="/">
+        <a class="navbar-brand d-flex align-items-center d-none js-restore" id="navbar_logo" href="#">
             <img 
-                src="{{ platform.logo.cache }}" 
+                src="{{ url_for('static', filename=platform.logo.cache) }}" 
                 alt="{{ platform.titel }}" 
                 class="d-inline-block align-text-top"
                 style="height:2rem">

app/utils/cache_manager.py

@@ -1,66 +1,45 @@
 import os
 import hashlib
 import requests
+import mimetypes
 
 class CacheManager:
-    """
-    A class to manage caching of files, including creating temporary directories
-    and caching files locally with hashed filenames.
-    """
-
     def __init__(self, cache_dir="static/cache"):
-        """
-        Initialize the CacheManager with a cache directory.
-
-        :param cache_dir: The directory where cached files will be stored.
-        """
         self.cache_dir = cache_dir
         self._ensure_cache_dir_exists()
 
     def _ensure_cache_dir_exists(self):
-        """
-        Ensure the cache directory exists. If it doesn't, create it.
-        """
         if not os.path.exists(self.cache_dir):
             os.makedirs(self.cache_dir)
 
     def clear_cache(self):
-        """
-        Clear all files in the cache directory.
-        """
         if os.path.exists(self.cache_dir):
             for filename in os.listdir(self.cache_dir):
-                file_path = os.path.join(self.cache_dir, filename)
-                if os.path.isfile(file_path):
-                    os.remove(file_path)
+                path = os.path.join(self.cache_dir, filename)
+                if os.path.isfile(path):
+                    os.remove(path)
 
     def cache_file(self, file_url):
-        """
-        Download a file and store it locally in the cache directory with a hashed filename.
+        # generate a short hash for filename
+        hash_suffix = hashlib.blake2s(file_url.encode('utf-8'), digest_size=8).hexdigest()
+        parts = file_url.rstrip("/").split("/")
+        base = parts[-2] if parts[-1] == "download" else parts[-1]
 
-        :param file_url: The URL of the file to cache.
-        :return: The local path of the cached file.
-        """
-        # Generate a hashed filename based on the URL
-        hash_object = hashlib.blake2s(file_url.encode('utf-8'), digest_size=8)
-        hash_suffix = hash_object.hexdigest()
+        try:
+            resp = requests.get(file_url, stream=True, timeout=5)
+            resp.raise_for_status()
+        except requests.RequestException:
+            return None
 
-        # Determine the base name for the file
-        splitted_file_url = file_url.split("/")
-        base_name = splitted_file_url[-2] if splitted_file_url[-1] == "download" else splitted_file_url[-1]
-
-        # Construct the full path for the cached file
-        filename = f"{base_name}_{hash_suffix}.png"
+        content_type = resp.headers.get('Content-Type', '')
+        ext = mimetypes.guess_extension(content_type.split(";")[0].strip()) or ".png"
+        filename = f"{base}_{hash_suffix}{ext}"
         full_path = os.path.join(self.cache_dir, filename)
 
-        # If the file already exists, return the cached path
-        if os.path.exists(full_path):
-            return full_path
+        if not os.path.exists(full_path):
+            with open(full_path, "wb") as f:
+                for chunk in resp.iter_content(1024):
+                    f.write(chunk)
 
-        # Download the file and save it locally
-        response = requests.get(file_url, stream=True)
-        if response.status_code == 200:
-            with open(full_path, "wb") as file:
-                for chunk in response.iter_content(1024):
-                    file.write(chunk)
-        return full_path
+        # return path relative to /static/
+        return f"cache/{filename}"