RSS Reader Mode parser improvements - Pick up all fields from RSS where possible, better auto-detect of the XML encoding if it wasnt set by the browser (#3646)

This commit is contained in:
dgtlmoon
2025-11-19 16:42:25 +01:00
committed by GitHub
parent 0be5005776
commit be3c9892e0
3 changed files with 229 additions and 63 deletions

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@@ -29,16 +29,135 @@ def cdata_in_document_to_text(html_content: str, render_anchor_tag_content=False
return re.sub(pattern, repl, html_content)
# Jinja2 template for formatting RSS/Atom feed entries
# Covers all common feedparser entry fields including namespaced elements
# Outputs HTML that will be converted to text via html_to_text
# @todo - This could be a UI setting in the future
RSS_ENTRY_TEMPLATE = """<article class="rss-item" id="{{ entry.id|replace('"', '')|replace(' ', '-') }}">{%- if entry.title -%}Title: {{ entry.title }}<br>{%- endif -%}
{%- if entry.link -%}<strong>Link:</strong> <a href="{{ entry.link }}">{{ entry.link }}</a><br>
{%- endif -%}
{%- if entry.id -%}
<strong>Guid:</strong> {{ entry.id }}<br>
{%- endif -%}
{%- if entry.published -%}
<strong>PubDate:</strong> {{ entry.published }}<br>
{%- endif -%}
{%- if entry.updated and entry.updated != entry.published -%}
<strong>Updated:</strong> {{ entry.updated }}<br>
{%- endif -%}
{%- if entry.author -%}
<strong>Author:</strong> {{ entry.author }}<br>
{%- elif entry.author_detail and entry.author_detail.name -%}
<strong>Author:</strong> {{ entry.author_detail.name }}
{%- if entry.author_detail.email %} ({{ entry.author_detail.email }}){% endif -%}
<br>
{%- endif -%}
{%- if entry.contributors -%}
<strong>Contributors:</strong> {% for contributor in entry.contributors -%}
{{ contributor.name if contributor.name else contributor }}
{%- if not loop.last %}, {% endif -%}
{%- endfor %}<br>
{%- endif -%}
{%- if entry.publisher -%}
<strong>Publisher:</strong> {{ entry.publisher }}<br>
{%- endif -%}
{%- if entry.rights -%}
<strong>Rights:</strong> {{ entry.rights }}<br>
{%- endif -%}
{%- if entry.license -%}
<strong>License:</strong> {{ entry.license }}<br>
{%- endif -%}
{%- if entry.language -%}
<strong>Language:</strong> {{ entry.language }}<br>
{%- endif -%}
{%- if entry.tags -%}
<strong>Tags:</strong> {% for tag in entry.tags -%}
{{ tag.term if tag.term else tag }}
{%- if not loop.last %}, {% endif -%}
{%- endfor %}<br>
{%- endif -%}
{%- if entry.category -%}
<strong>Category:</strong> {{ entry.category }}<br>
{%- endif -%}
{%- if entry.comments -%}
<strong>Comments:</strong> <a href="{{ entry.comments }}">{{ entry.comments }}</a><br>
{%- endif -%}
{%- if entry.slash_comments -%}
<strong>Comment Count:</strong> {{ entry.slash_comments }}<br>
{%- endif -%}
{%- if entry.enclosures -%}
<strong>Enclosures:</strong><br>
{%- for enclosure in entry.enclosures %}
- <a href="{{ enclosure.href }}">{{ enclosure.href }}</a> ({{ enclosure.type if enclosure.type else 'unknown type' }}
{%- if enclosure.length %}, {{ enclosure.length }} bytes{% endif -%}
)<br>
{%- endfor -%}
{%- endif -%}
{%- if entry.media_content -%}
<strong>Media:</strong><br>
{%- for media in entry.media_content %}
- <a href="{{ media.url }}">{{ media.url }}</a>
{%- if media.type %} ({{ media.type }}){% endif -%}
{%- if media.width and media.height %} {{ media.width }}x{{ media.height }}{% endif -%}
<br>
{%- endfor -%}
{%- endif -%}
{%- if entry.media_thumbnail -%}
<strong>Thumbnail:</strong> <a href="{{ entry.media_thumbnail[0].url if entry.media_thumbnail[0].url else entry.media_thumbnail[0] }}">{{ entry.media_thumbnail[0].url if entry.media_thumbnail[0].url else entry.media_thumbnail[0] }}</a><br>
{%- endif -%}
{%- if entry.media_description -%}
<strong>Media Description:</strong> {{ entry.media_description }}<br>
{%- endif -%}
{%- if entry.itunes_duration -%}
<strong>Duration:</strong> {{ entry.itunes_duration }}<br>
{%- endif -%}
{%- if entry.itunes_author -%}
<strong>Podcast Author:</strong> {{ entry.itunes_author }}<br>
{%- endif -%}
{%- if entry.dc_identifier -%}
<strong>Identifier:</strong> {{ entry.dc_identifier }}<br>
{%- endif -%}
{%- if entry.dc_source -%}
<strong>DC Source:</strong> {{ entry.dc_source }}<br>
{%- endif -%}
{%- if entry.dc_type -%}
<strong>Type:</strong> {{ entry.dc_type }}<br>
{%- endif -%}
{%- if entry.dc_format -%}
<strong>Format:</strong> {{ entry.dc_format }}<br>
{%- endif -%}
{%- if entry.dc_relation -%}
<strong>Related:</strong> {{ entry.dc_relation }}<br>
{%- endif -%}
{%- if entry.dc_coverage -%}
<strong>Coverage:</strong> {{ entry.dc_coverage }}<br>
{%- endif -%}
{%- if entry.source and entry.source.title -%}
<strong>Source:</strong> {{ entry.source.title }}
{%- if entry.source.link %} (<a href="{{ entry.source.link }}">{{ entry.source.link }}</a>){% endif -%}
<br>
{%- endif -%}
{%- if entry.dc_content -%}
<strong>Content:</strong> {{ entry.dc_content | safe }}
{%- elif entry.content and entry.content[0].value -%}
<strong>Content:</strong> {{ entry.content[0].value | safe }}
{%- elif entry.summary -%}
<strong>Summary:</strong> {{ entry.summary | safe }}
{%- endif -%}</article>
"""
def format_rss_items(rss_content: str, render_anchor_tag_content=False) -> str:
"""
Format RSS/Atom feed items in a readable text format using feedparser.
Format RSS/Atom feed items in a readable text format using feedparser and Jinja2.
Converts RSS <item> or Atom <entry> elements to formatted text with:
- <title> → <h1>Title</h1>
- <link> → Link: [url]
- <guid> → Guid: [id]
- <pubDate> → PubDate: [date]
- <description> or <content> → Raw HTML content (CDATA and entities automatically handled)
Converts RSS <item> or Atom <entry> elements to formatted text with all available fields:
- Basic fields: title, link, id/guid, published date, updated date
- Author fields: author, author_detail, contributors, publisher
- Content fields: content, summary, description
- Metadata: tags, category, rights, license
- Media: enclosures, media_content, media_thumbnail
- Dublin Core elements: dc:creator, dc:date, dc:publisher, etc. (mapped by feedparser)
Args:
rss_content: The RSS/Atom feed content
@@ -49,65 +168,19 @@ def format_rss_items(rss_content: str, render_anchor_tag_content=False) -> str:
"""
try:
import feedparser
from xml.sax.saxutils import escape as xml_escape
from changedetectionio.jinja2_custom import safe_jinja
# Parse the feed - feedparser handles all RSS/Atom variants, CDATA, entity unescaping, etc.
feed = feedparser.parse(rss_content)
formatted_items = []
# Determine feed type for appropriate labels when fields are missing
# feedparser sets feed.version to things like 'rss20', 'atom10', etc.
# Determine feed type for appropriate labels
is_atom = feed.version and 'atom' in feed.version
formatted_items = []
for entry in feed.entries:
item_parts = []
# Title - feedparser handles CDATA and entity unescaping automatically
if hasattr(entry, 'title') and entry.title:
item_parts.append(f'<h1>{xml_escape(entry.title)}</h1>')
# Link
if hasattr(entry, 'link') and entry.link:
item_parts.append(f'Link: {xml_escape(entry.link)}<br>')
# GUID/ID
if hasattr(entry, 'id') and entry.id:
item_parts.append(f'Guid: {xml_escape(entry.id)}<br>')
# Date - feedparser normalizes all date field names to 'published'
if hasattr(entry, 'published') and entry.published:
item_parts.append(f'PubDate: {xml_escape(entry.published)}<br>')
# Description/Content - feedparser handles CDATA and entity unescaping automatically
# Only add "Summary:" label for Atom <summary> tags
content = None
add_label = False
if hasattr(entry, 'content') and entry.content:
# Atom <content> - no label, just content
content = entry.content[0].value if entry.content[0].value else None
elif hasattr(entry, 'summary'):
# Could be RSS <description> or Atom <summary>
# feedparser maps both to entry.summary
content = entry.summary if entry.summary else None
# Only add "Summary:" label for Atom feeds (which use <summary> tag)
if is_atom:
add_label = True
# Add content with or without label
if content:
if add_label:
item_parts.append(f'Summary:<br>{content}')
else:
item_parts.append(content)
else:
# No content - just show <none>
item_parts.append('&lt;none&gt;')
# Join all parts of this item
if item_parts:
formatted_items.append('\n'.join(item_parts))
# Render the entry using Jinja2 template
rendered = safe_jinja.render(RSS_ENTRY_TEMPLATE, entry=entry, is_atom=is_atom)
formatted_items.append(rendered.strip())
# Wrap each item in a div with classes (first, last, item-N)
items_html = []
@@ -122,7 +195,8 @@ def format_rss_items(rss_content: str, render_anchor_tag_content=False) -> str:
class_str = ' '.join(classes)
items_html.append(f'<div class="{class_str}">{item}</div>')
return '<html><body>\n'+"\n<br><br>".join(items_html)+'\n</body></html>'
return '<html><body>\n' + "\n<br>".join(items_html) + '\n</body></html>'
except Exception as e:
logger.warning(f"Error formatting RSS items: {str(e)}")