Adding an alert in README.md

Author: Lucas-C

README.md

@@ -5,8 +5,14 @@
 
 [Pelican](https://getpelican.com) plugin that insert thumbnails along image links.
 
+> [!WARNING]
+> Since DeviantArt started using CloudFront in 2024, this plugin is not able to produce thumbnails for DeviantArt images.
+
+> However a tested workaround is to use TOR to bypass CloudFront and run the plugin manually on HTML files:
+> `torify path/to/image_preview_thumbnailer.py path/to/page.html`
+
 ## Demo page
-<https://chezsoi.org/lucas/blog/pages/images-libres-de-droits.html#fonts>
+<https://chezsoi.org/lucas/blog/pages/images-libres-de-droits.html>
 
 Source Markdown: [pages/images-libres-de-droits.md](https://github.com/Lucas-C/ludochaordic/blob/master/content/pages/images-libres-de-droits.md)
 

image_preview_thumbnailer.py

@@ -145,10 +145,11 @@ def process_link(img_downloader, anchor_tag, url_match, config=PluginConfig()):
     if matching_filepaths:  # => a thumbnail has already been generated
         fs_thumb_filepath = matching_filepaths[0]
     else:
-        LOGGER.info("Thumbnail does not exist => downloading image from %s", anchor_tag['href'])
+        LOGGER.info("Thumbnail does not exist for %s => downloading image from %s", thumb_filename, anchor_tag['href'])
         tmp_thumb_filepath = img_downloader(url_match, config)
         if not tmp_thumb_filepath:  # => means the downloader failed to retrieve the image in a "supported" case
-            with open(config.fs_thumbs_dir(thumb_filename + '.none'), 'w', encoding='utf8'):
+            hostname = urlparse(anchor_tag['href']).netloc
+            with open(config.fs_thumbs_dir(f'{thumb_filename}.{hostname}.none'), 'w', encoding='utf8'):
                 pass
             return
         img_ext = os.path.splitext(tmp_thumb_filepath)[1]
@@ -158,7 +159,7 @@ def process_link(img_downloader, anchor_tag, url_match, config=PluginConfig()):
         os.rename(tmp_thumb_filepath, fs_thumb_filepath)
         # Under Windows, I have sometime seen a bit of delay for this operation to be performed,
         # which could trigger a FileNotFoundError on the line below, when calling getsize()
-    if not os.path.getsize(fs_thumb_filepath):  # .none file, meaning no thumbnail could be donwloaded
+    if not os.path.getsize(fs_thumb_filepath):  # .none file, meaning no thumbnail could be downloaded
         return
     rel_thumb_filepath = fs_thumb_filepath.replace(config.output_path + '/', '') if config.output_path else fs_thumb_filepath
     # Editing HTML on-the-fly to insert an <img> after the <a>:
@@ -331,8 +332,12 @@ def http_get(url, config=PluginConfig()):
         if response.status_code != 200 and config.silent_http_errors:
             LOGGER.error('%s HTTP error when fetching %s', response.status_code, url)
             return None
+        if response.status_code != 200:
+            LOGGER.debug(response.text)
         if response.status_code != 200 and b'captcha' in response.content:
             LOGGER.warning('CAPTCHA is likely to be required by page %s', url)
+        if response.status_code != 200 and b'CloudFront' in response.content:
+            LOGGER.warning('CloudFront is blocking request %s', url)
         response.raise_for_status()
         return response
 
@@ -353,7 +358,7 @@ def register():
 
 if __name__ == '__main__':
     html_filepath = sys.argv[1]
-    logging.basicConfig(format="%(asctime)s %(name)s [%(levelname)s] %(message)s",
+    logging.basicConfig(format="%(asctime)s [%(levelname)s] %(name)s (pid:%(process)s) %(message)s",
                         datefmt="%H:%M:%S", level=logging.DEBUG)
     config = PluginConfig(dict(
         selector='article ul ul, h2:nth-of-type(3) + ul, h2:nth-of-type(4) + ul',