Updated video player.

src/snek/system/template.py

@@ -24,6 +24,34 @@ def set_link_target_blank(text):
 
     return str(soup)
 
+def embed_youtube(text):
+    soup = BeautifulSoup(text, 'html.parser') 
+    for element in soup.find_all("a"):  
+        if element.attrs['href'].startswith("https://www.you") and "?v=" in element.attrs["href"]:
+            video_name = element.attrs["href"].split("?v=")[1].split("&")[0]
+            embed_template = f'<iframe width="560" height="315" src="https://www.youtube.com/embed/{video_name}" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>'
+            element.replace_with(BeautifulSoup(embed_template, 'html.parser'))
+    return str(soup)
+
+def embed_image(text):
+    soup = BeautifulSoup(text, 'html.parser') 
+    for element in soup.find_all("a"):  
+        for extension in [".png", ".jpeg", ".gif", ".webp", ".svg", ".bmp", ".tiff", ".ico", ".heif"]:
+            if extension in element.attrs['href'].lower():
+                embed_template = f'<img src="{element.attrs["href"]}" title="{element.attrs["href"]}" alt="{element.attrs["href"]}" />'
+                element.replace_with(BeautifulSoup(embed_template, 'html.parser'))
+    return str(soup)
+
+def embed_media(text):
+    soup = BeautifulSoup(text, 'html.parser') 
+    for element in soup.find_all("a"):  
+        for extension in [".mp4", ".mp3", ".wav", ".ogg", ".webm", ".flac", ".aac",".mpg",".avi",".wmv"]:
+            if extension in element.attrs['href'].lower():
+                embed_template = f'<video controls> <source src="{element.attrs["href"]}">Your browser does not support the video tag.</video>'
+                element.replace_with(BeautifulSoup(embed_template, 'html.parser'))
+    return str(soup)
+
+
 
 def linkify_https(text):
     if not "https://" in text:
@@ -83,7 +111,11 @@ class LinkifyExtension(Extension):
         ).set_lineno(line_number)
 
     def _to_html(self, md_file, caller):
-        return linkify_https(caller())
+        result =  linkify_https(caller())
+        result = embed_media(result)
+        result = embed_image(result)
+        result = embed_youtube(result)
+        return result
 
 class PythonExtension(Extension):
     tags = {"py3"}