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import feedparser
import requests
from typing import Dict, List, Any, Optional
from datetime import datetime
import time
import hashlib
import re
from urllib.parse import urlparse
from utils.logging import setup_logger
from utils.error_handling import handle_exceptions, IntegrationError
from utils.storage import load_data, save_data
# Initialize logger
logger = setup_logger(__name__)
class RSSFeedIntegration:
"""RSS Feed integration for content aggregation"""
def __init__(self):
"""Initialize RSS Feed integration"""
self.feeds = {}
self.last_fetch = {}
self.cached_entries = {}
@handle_exceptions
def add_feed(self, url: str, name: Optional[str] = None, category: str = "General") -> Dict[str, Any]:
"""Add an RSS feed
Args:
url: Feed URL
name: Feed name (optional, will be extracted from feed if not provided)
category: Feed category (default: General)
Returns:
Feed information
"""
# Validate URL
parsed_url = urlparse(url)
if not parsed_url.scheme or not parsed_url.netloc:
raise IntegrationError(f"Invalid feed URL: {url}")
# Check if feed already exists
feed_id = self._generate_feed_id(url)
if feed_id in self.feeds:
return self.feeds[feed_id]
# Fetch feed to validate and get information
try:
feed_data = feedparser.parse(url)
if feed_data.get("bozo", 0) == 1 and not feed_data.get("entries"):
bozo_exception = feed_data.get("bozo_exception")
error_msg = str(bozo_exception) if bozo_exception else "Unknown error"
raise IntegrationError(f"Invalid feed: {error_msg}")
# Extract feed information
feed_info = {
"id": feed_id,
"url": url,
"name": name or feed_data.feed.get("title", url),
"description": feed_data.feed.get("description", ""),
"category": category,
"last_updated": feed_data.feed.get("updated", ""),
"added_at": datetime.now().isoformat(),
"entry_count": len(feed_data.entries)
}
# Store feed information
self.feeds[feed_id] = feed_info
self.last_fetch[feed_id] = time.time()
# Cache entries
self._cache_entries(feed_id, feed_data.entries)
return feed_info
except Exception as e:
if not isinstance(e, IntegrationError):
logger.error(f"Failed to add feed {url}: {str(e)}")
raise IntegrationError(f"Failed to add feed: {str(e)}")
raise
@handle_exceptions
def remove_feed(self, feed_id: str) -> bool:
"""Remove an RSS feed
Args:
feed_id: Feed ID
Returns:
True if successful, False otherwise
"""
if feed_id not in self.feeds:
return False
# Remove feed and related data
del self.feeds[feed_id]
if feed_id in self.last_fetch:
del self.last_fetch[feed_id]
if feed_id in self.cached_entries:
del self.cached_entries[feed_id]
return True
@handle_exceptions
def get_feeds(self, category: Optional[str] = None) -> List[Dict[str, Any]]:
"""Get all feeds or feeds in a specific category
Args:
category: Feed category (optional)
Returns:
List of feed information
"""
if category:
return [feed for feed in self.feeds.values() if feed.get("category") == category]
else:
return list(self.feeds.values())
@handle_exceptions
def update_feed(self, feed_id: str, name: Optional[str] = None,
category: Optional[str] = None) -> Dict[str, Any]:
"""Update feed information
Args:
feed_id: Feed ID
name: New feed name (optional)
category: New feed category (optional)
Returns:
Updated feed information
"""
if feed_id not in self.feeds:
raise IntegrationError(f"Feed not found: {feed_id}")
feed_info = self.feeds[feed_id]
# Update fields if provided
if name is not None:
feed_info["name"] = name
if category is not None:
feed_info["category"] = category
# Update timestamp
feed_info["updated_at"] = datetime.now().isoformat()
# Store updated feed information
self.feeds[feed_id] = feed_info
return feed_info
@handle_exceptions
def fetch_feed_entries(self, feed_id: str, max_entries: int = 20,
force_refresh: bool = False) -> List[Dict[str, Any]]:
"""Fetch entries from a feed
Args:
feed_id: Feed ID
max_entries: Maximum number of entries to fetch (default: 20)
force_refresh: Force refresh even if cache is recent (default: False)
Returns:
List of feed entries
"""
if feed_id not in self.feeds:
raise IntegrationError(f"Feed not found: {feed_id}")
feed_info = self.feeds[feed_id]
current_time = time.time()
# Check if we need to refresh the cache
cache_age = current_time - self.last_fetch.get(feed_id, 0)
if force_refresh or cache_age > 300: # Refresh if older than 5 minutes
try:
feed_data = feedparser.parse(feed_info["url"])
# Update feed information
feed_info["last_updated"] = feed_data.feed.get("updated", "")
feed_info["entry_count"] = len(feed_data.entries)
self.feeds[feed_id] = feed_info
# Update cache
self.last_fetch[feed_id] = current_time
self._cache_entries(feed_id, feed_data.entries)
except Exception as e:
logger.error(f"Failed to fetch feed {feed_info['url']}: {str(e)}")
# If we have cached entries, use them instead of failing
if feed_id not in self.cached_entries:
raise IntegrationError(f"Failed to fetch feed: {str(e)}")
# Return entries from cache
entries = self.cached_entries.get(feed_id, [])
return entries[:max_entries]
@handle_exceptions
def fetch_all_entries(self, max_entries_per_feed: int = 10,
categories: Optional[List[str]] = None) -> Dict[str, List[Dict[str, Any]]]:
"""Fetch entries from all feeds or feeds in specific categories
Args:
max_entries_per_feed: Maximum number of entries per feed (default: 10)
categories: List of categories to include (optional)
Returns:
Dictionary mapping feed IDs to lists of entries
"""
result = {}
# Get feeds to fetch
feeds_to_fetch = self.feeds.values()
if categories:
feeds_to_fetch = [feed for feed in feeds_to_fetch if feed.get("category") in categories]
# Fetch entries for each feed
for feed in feeds_to_fetch:
try:
entries = self.fetch_feed_entries(feed["id"], max_entries_per_feed)
result[feed["id"]] = entries
except Exception as e:
logger.error(f"Failed to fetch entries for feed {feed['url']}: {str(e)}")
result[feed["id"]] = []
return result
@handle_exceptions
def get_latest_entries(self, max_entries: int = 20,
categories: Optional[List[str]] = None) -> List[Dict[str, Any]]:
"""Get latest entries from all feeds or feeds in specific categories
Args:
max_entries: Maximum number of entries to return (default: 20)
categories: List of categories to include (optional)
Returns:
List of latest entries
"""
# Fetch entries from all feeds
all_entries = self.fetch_all_entries(max_entries, categories)
# Flatten and sort entries
entries = []
for feed_id, feed_entries in all_entries.items():
for entry in feed_entries:
entry["feed_id"] = feed_id
entry["feed_name"] = self.feeds[feed_id]["name"]
entries.append(entry)
# Sort by published date (newest first)
entries.sort(key=lambda x: x.get("published_parsed", 0), reverse=True)
return entries[:max_entries]
@handle_exceptions
def search_entries(self, query: str, max_results: int = 20,
categories: Optional[List[str]] = None) -> List[Dict[str, Any]]:
"""Search for entries matching a query
Args:
query: Search query
max_results: Maximum number of results to return (default: 20)
categories: List of categories to include (optional)
Returns:
List of matching entries
"""
# Fetch entries from all feeds
all_entries = self.fetch_all_entries(50, categories) # Fetch more entries for better search results
# Flatten entries
entries = []
for feed_id, feed_entries in all_entries.items():
for entry in feed_entries:
entry["feed_id"] = feed_id
entry["feed_name"] = self.feeds[feed_id]["name"]
entries.append(entry)
# Search for matching entries
query = query.lower()
matching_entries = []
for entry in entries:
# Check if query matches title, summary, or content
title = entry.get("title", "").lower()
summary = entry.get("summary", "").lower()
content = ""
# Extract content from different possible formats
if "content" in entry:
for content_item in entry["content"]:
content += content_item.get("value", "").lower()
# Check for match
if query in title or query in summary or query in content:
matching_entries.append(entry)
return matching_entries[:max_results]
@handle_exceptions
def get_feed_categories(self) -> List[str]:
"""Get all feed categories
Returns:
List of categories
"""
categories = set(feed.get("category", "General") for feed in self.feeds.values())
return sorted(list(categories))
@handle_exceptions
def export_opml(self) -> str:
"""Export feeds as OPML
Returns:
OPML content as string
"""
opml = '<?xml version="1.0" encoding="UTF-8"?>\n'
opml += '<opml version="2.0">\n'
opml += ' <head>\n'
opml += f' <title>MONA RSS Feeds Export</title>\n'
opml += f' <dateCreated>{datetime.now().strftime("%a, %d %b %Y %H:%M:%S %z")}</dateCreated>\n'
opml += ' </head>\n'
opml += ' <body>\n'
# Group feeds by category
categories = {}
for feed in self.feeds.values():
category = feed.get("category", "General")
if category not in categories:
categories[category] = []
categories[category].append(feed)
# Add feeds by category
for category, feeds in categories.items():
opml += f' <outline text="{category}" title="{category}">\n'
for feed in feeds:
title = feed.get("name", "").replace('"', '"')
url = feed.get("url", "").replace('"', '"')
description = feed.get("description", "").replace('"', '"')
opml += f' <outline type="rss" text="{title}" title="{title}" xmlUrl="{url}" description="{description}" />\n'
opml += ' </outline>\n'
opml += ' </body>\n'
opml += '</opml>'
return opml
@handle_exceptions
def import_opml(self, opml_content: str) -> Dict[str, Any]:
"""Import feeds from OPML
Args:
opml_content: OPML content as string
Returns:
Import results
"""
import xml.etree.ElementTree as ET
try:
# Parse OPML content
root = ET.fromstring(opml_content)
# Find all outline elements with type="rss"
results = {
"total": 0,
"imported": 0,
"failed": 0,
"existing": 0,
"feeds": []
}
# Process outlines
for outline in root.findall(".//outline"):
# Check if this is a category or a feed
outline_type = outline.get("type")
if outline_type == "rss" or outline.get("xmlUrl"):
# This is a feed
results["total"] += 1
url = outline.get("xmlUrl")
title = outline.get("title") or outline.get("text")
# Find category (parent outline)
category = "General"
parent = outline.getparent() if hasattr(outline, "getparent") else None
if parent is not None and parent.get("title"):
category = parent.get("title")
# Add feed
try:
feed_id = self._generate_feed_id(url)
if feed_id in self.feeds:
results["existing"] += 1
results["feeds"].append({
"url": url,
"title": title,
"status": "existing"
})
else:
self.add_feed(url, title, category)
results["imported"] += 1
results["feeds"].append({
"url": url,
"title": title,
"status": "imported"
})
except Exception as e:
results["failed"] += 1
results["feeds"].append({
"url": url,
"title": title,
"status": "failed",
"error": str(e)
})
return results
except Exception as e:
logger.error(f"Failed to import OPML: {str(e)}")
raise IntegrationError(f"Failed to import OPML: {str(e)}")
def _generate_feed_id(self, url: str) -> str:
"""Generate a unique ID for a feed URL
Args:
url: Feed URL
Returns:
Feed ID
"""
return hashlib.md5(url.encode()).hexdigest()
def _cache_entries(self, feed_id: str, entries: List[Dict[str, Any]]) -> None:
"""Cache feed entries
Args:
feed_id: Feed ID
entries: List of feed entries
"""
# Process entries to standardize format
processed_entries = []
for entry in entries:
# Extract basic information
processed_entry = {
"id": entry.get("id", ""),
"title": entry.get("title", ""),
"link": entry.get("link", ""),
"summary": entry.get("summary", ""),
"published": entry.get("published", ""),
"published_parsed": entry.get("published_parsed"),
"updated": entry.get("updated", ""),
"updated_parsed": entry.get("updated_parsed"),
"authors": entry.get("authors", []),
"tags": entry.get("tags", [])
}
# Extract content
if "content" in entry:
processed_entry["content"] = entry["content"]
# Clean up HTML in summary if present
if processed_entry["summary"] and re.search(r"<[^>]+>", processed_entry["summary"]):
# Simple HTML tag removal (a more robust solution would use a proper HTML parser)
processed_entry["summary_text"] = re.sub(r"<[^>]+>", "", processed_entry["summary"])
processed_entries.append(processed_entry)
# Store in cache
self.cached_entries[feed_id] = processed_entries |