[DONE] Use get_thumbnail to serve video thumbnail via caching system (#1221)

Prevents video thumbnail url to be publicly available, and serve it via cache system

Author: Badatos

pod/main/templates/block/carousel.html

@@ -29,26 +29,28 @@ <h2>{{ title |capfirst|truncatechars:43 }}</h2>
           {% endif %}
           <a href="{{ element.get_absolute_url }}" title="{{ element.title }}">
             {% if type == "video" or type == 'last' %}
-            <img
-              src="{{ element.get_thumbnail_url }}"
-              class="img-fluid d-block w-100"
-              alt=""/>
-            {% elif type == "event" %} {% if element.thumbnail %}
-            <img
-              src="{{ element.get_thumbnail_card }}"
-              class="img-fluid d-block w-100"
-              alt=""/>
-            {% elif element.broadcaster.poster %}
-            <img
-              src="{{ element.broadcaster.get_poster_url }}"
-              class="img-fluid d-block w-100"
-              alt=""/>
-            {% else %}
-            <img
-              src="{{ element.get_thumbnail_card }}"
-              class="img-fluid d-block w-100"
-              alt=""/>
-            {% endif %} {% endif %}
+              <img
+                src="{{ element.get_thumbnail_url }}"
+                class="img-fluid d-block w-100"
+                alt=""/>
+            {% elif type == "event" %}
+              {% if element.thumbnail %}
+                <img
+                  src="{{ element.get_thumbnail_card }}"
+                  class="img-fluid d-block w-100"
+                  alt=""/>
+              {% elif element.broadcaster.poster %}
+                <img
+                  src="{{ element.broadcaster.get_poster_url }}"
+                  class="img-fluid d-block w-100"
+                  alt=""/>
+              {% else %}
+                <img
+                  src="{{ element.get_thumbnail_card }}"
+                  class="img-fluid d-block w-100"
+                  alt=""/>
+              {% endif %}
+            {% endif %}
             <div class="carousel-caption d-none d-md-block">
               <h3 class="video-title">
                 {{ element.title|capfirst|truncatechars:43 }}

pod/video/models.py

@@ -1005,22 +1005,17 @@ def get_thumbnail_url(self) -> str:
         """Get a thumbnail url for the video."""
         request = None
         if self.thumbnail and self.thumbnail.file_exist():
-            thumbnail_url = "".join(
-                [
-                    "//",
-                    get_current_site(request).domain,
-                    self.thumbnail.file.url,
-                ]
-            )
+            # Do not serve thumbnail url directly, as it can lead to the video URL
+            im = get_thumbnail(self.thumbnail.file, "x170", crop="center", quality=80)
+            return im.url
         else:
-            thumbnail_url = "".join(
+            return "".join(
                 [
                     "//",
                     get_current_site(request).domain,
                     static(DEFAULT_THUMBNAIL),
                 ]
             )
-        return thumbnail_url
 
     @property
     def get_thumbnail_admin(self):