BIG REFACTORING post parsing and rendering with modular HTML generation and improved media group handling

This commit is contained in:
vvzvlad
2025-02-09 02:29:49 +03:00
parent 9207056df8
commit 1512c09f1b
3 changed files with 227 additions and 223 deletions
+125 -129
View File
@@ -3,11 +3,12 @@ import copy
import re
import os
import json
import bleach
from datetime import datetime
from typing import Union, Dict, Any, List
from pyrogram.types import Message
from bleach.css_sanitizer import CSSSanitizer
from bleach import clean as HTMLSanitizer
from pyrogram.enums import MessageMediaType
from config import get_settings
from url_signer import generate_media_digest
@@ -56,30 +57,6 @@ if not logger.handlers:
class PostParser:
def __init__(self, client):
self.client = client
self.allowed_tags = ['p', 'a', 'b', 'i', 'strong', 'em', 'ul', 'ol', 'li', 'br', 'div', 'span', 'img', 'video', 'audio', 'source']
self.allowed_attributes = {
'a': ['href', 'title', 'target'],
'img': {
'src': True,
'alt': True,
'style': ['max-width', 'max-height', 'object-fit']
},
'video': {
'controls': True,
'src': True,
'style': ['max-width', 'max-height']
},
'audio': {
'controls': True,
'style': ['width', 'max-width']
},
'source': ['src', 'type'],
'div': {
'class': True,
'style': ['margin']
},
'span': ['class']
}
def _debug_message(self, message: Message) -> Message:
if Config["debug"]:
@@ -90,15 +67,19 @@ class PostParser:
debug_message.entities = None
print(debug_message)
return
def channel_name_prepare(self, channel: str):
if isinstance(channel, str) and channel.startswith('-100'): # Convert numeric channel ID to int
channel_id = int(channel)
return channel_id
else:
return channel
async def get_post(self, channel: str, post_id: int, output_type: str = 'json') -> Union[str, Dict[Any, Any]]:
print(f"Getting post {channel}, {post_id}")
try:
channel_id = channel
if isinstance(channel, str) and channel.startswith('-100'): # Convert numeric channel ID to int
channel_id = int(channel)
message = await self.client.get_messages(channel_id, post_id)
channel = self.channel_name_prepare(channel)
message = await self.client.get_messages(channel, post_id)
self._debug_message(message)
@@ -109,7 +90,7 @@ class PostParser:
if output_type == 'html':
return self._format_html(message)
elif output_type == 'json':
return self._format_json(message)
return self.process_message(message)
else:
logger.error(f"Invalid output type: {output_type}")
return None
@@ -160,7 +141,7 @@ class PostParser:
text = '\n'.join(line.strip() for line in text.split('\n') if line.strip())
# Get first non-empty line
first_line = text.split('\n')[0] if text else ""
first_line = text.split('\n', maxsplit=1)[0] if text else ""
max_length = 100
if len(first_line) <= max_length:
@@ -210,74 +191,113 @@ class PostParser:
return None
def _extract_reactions(self, message: Message) -> Union[str, None]:
if reactions := getattr(message, 'reactions', None):
return {r.emoji: r.count for r in reactions.reactions}
return None
def format_message_for_feed(self, message: Message, top_info: bool = True, bottom_info: bool = True) -> Dict[Any, Any]:
return self._format_json(message, top_info=top_info, bottom_info=bottom_info)
def _format_json(self, message: Message, top_info: bool = True, bottom_info: bool = True) -> Dict[Any, Any]:
html_content = self._format_html(message, top_info=top_info, bottom_info=bottom_info)
def _format_html(self, message: Message) -> str:
html_content = []
data = self.process_message(message)['html']
html_content.append(f'<div class="message-header">{data["header"]}</div>')
html_content.append(f'<div class="message-media">{data["media"]}</div>')
html_content.append(f'<div class="message-text">{data["body"]}</div>')
html_content.append(f'<div class="message-footer">{data["footer"]}</div>')
html_content = '\n'.join(html_content)
return html_content
def process_message(self, message: Message) -> Dict[Any, Any]:
result = {
'channel': self.get_channel_username(message),
'message_id': message.id,
'date': datetime.timestamp(message.date),
'date_formatted': message.date.strftime('%Y-%m-%d %H:%M:%S'),
'text': message.text or message.caption or '',
'html': html_content,
'title': self._generate_title(message),
'html': {
'title': self._generate_title(message),
'header': self._generate_html_header(message),
'body': self._generate_html_body(message),
'media': self._generate_html_media(message),
'footer': self._generate_html_footer(message)
},
'author': self._get_author_info(message),
'views': message.views,
'reactions': self._extract_reactions(message),
'media_group_id': message.media_group_id
}
if message.media_group_id:
result['media_group_id'] = message.media_group_id
return result
def _sanitize_html(self, html: str) -> str:
allowed_tags = ['p', 'a', 'b', 'i', 'strong', 'em', 'ul', 'ol', 'li', 'br', 'div', 'span', 'img', 'video', 'audio', 'source']
allowed_attributes = {
'a': ['href', 'title', 'target'],
'img': {'src': True, 'alt': True, 'style': True},
'video': {'controls': True, 'src': True, 'style': True},
'audio': {'controls': True, 'style': True},
'source': ['src', 'type'],
'div': {'class': True, 'style': True},
'span': ['class']
}
try:
return bleach.clean(
css_sanitizer = CSSSanitizer(
allowed_css_properties=["max-width", "max-height", "object-fit", "width", "height"]
)
sanitized_html = HTMLSanitizer(
html,
tags=self.allowed_tags,
attributes=self.allowed_attributes,
tags=allowed_tags,
attributes=allowed_attributes,
css_sanitizer=css_sanitizer,
strip=True,
)
return sanitized_html
except Exception as e:
logger.error(f"html_sanitization_error: {str(e)}")
return html
def _format_html(self, message: Message, top_info: bool = True, bottom_info: bool = True) -> str:
html_content = []
# Create service message for "channel created"
if getattr(message, "channel_chat_created", False):
html_content.append('<div class="message-service">Channel created</div>')
html = '\n'.join(html_content)
return self._sanitize_html(html)
def _generate_html_header(self, message: Message) -> str:
content_header = []
# Add forwarded from or reply info if present
if top_info:
if forward_html := self._format_forward_info(message):
html_content.append(forward_html)
elif reply_html := self._format_reply_info(message):
html_content.append(reply_html)
if forward_html := self._format_forward_info(message):
content_header.append(forward_html)
elif reply_html := self._format_reply_info(message):
content_header.append(reply_html)
html_header = '\n'.join(content_header)
html_header = self._sanitize_html(html_header)
return html_header
if message.text:
text = message.text.html
elif message.caption:
text = message.caption.html
else:
text = ''
def _generate_html_body(self, message: Message) -> str:
content_body = []
if message.text: text = message.text.html
elif message.caption: text = message.caption.html
else: text = ''
text = text.replace('\n', '<br>') # Replace newlines with <br>
text = self._add_hyperlinks_to_raw_urls(text) # Add hyperlinks to raw URLs
self._save_media_file_ids(message) # Save media file_ids for caching
if poll := getattr(message, "poll", None): # Poll formatting
if text: # Message text
content_body.append(f'<div class="message-text">{text}</div>')
if poll := getattr(message, "poll", None): # Poll message
if poll_html := self._format_poll(poll):
html_content.append(poll_html)
content_body.append(poll_html)
if getattr(message, "channel_chat_created", False): # Create service message for "channel created"
content_body.append('<div class="message-service">Channel created</div>')
html_body = '\n'.join(content_body)
html_body = self._sanitize_html(html_body)
return html_body
def _generate_html_media(self, message: Message) -> str:
self._save_media_file_ids(message) # Save media file_ids for caching
content_media = []
base_url = Config['pyrogram_bridge_url']
if message.media and message.media != "MessageMediaType.POLL":
file_unique_id = self._get_file_unique_id(message)
@@ -290,54 +310,51 @@ class PostParser:
url = f"{base_url}/media/{file}/{digest}"
logger.debug(f"Collected media file: {channel_username}/{message.id}/{file_unique_id}")
html_content.append(f'<div class="message-media">')
content_media.append(f'<div class="message-media">')
if message.media in [MessageMediaType.PHOTO, MessageMediaType.DOCUMENT]:
html_content.append(f'<img src="{url}" style="max-width:600px; max-height:600px; object-fit:contain;">')
content_media.append(f'<img src="{url}" style="max-width:400px; max-height:400px; object-fit:contain;">')
elif message.media == MessageMediaType.VIDEO:
html_content.append(f'<video controls src="{url}" style="max-width:600px; max-height:600px;"></video>')
content_media.append(f'<video controls src="{url}" style="max-width:400px; max-height:400px;"></video>')
elif message.media == MessageMediaType.ANIMATION:
html_content.append(f'<video controls src="{url}" style="max-width:600px; max-height:600px;"></video>')
content_media.append(f'<video controls src="{url}" style="max-width:400px; max-height:400px;"></video>')
elif message.media == MessageMediaType.VIDEO_NOTE:
html_content.append(f'<video controls src="{url}" style="max-width:600px; max-height:600px;"></video>')
content_media.append(f'<video controls src="{url}" style="max-width:400px; max-height:400px;"></video>')
elif message.media == MessageMediaType.AUDIO:
mime_type = getattr(message.audio, 'mime_type', 'audio/mpeg')
html_content.append(f'<audio controls style="width:100%; max-width:400px;"><source src="{url}" type="{mime_type}"></audio>')
content_media.append(f'<audio controls style="width:100%; max-width:400px;"><source src="{url}" type="{mime_type}"></audio>')
elif message.media == MessageMediaType.VOICE:
mime_type = getattr(message.voice, 'mime_type', 'audio/ogg')
html_content.append(f'<audio controls style="width:100%; max-width:400px;"><source src="{url}" type="{mime_type}"></audio>')
content_media.append(f'<audio controls style="width:100%; max-width:400px;"><source src="{url}" type="{mime_type}"></audio>')
elif message.media == MessageMediaType.STICKER:
emoji = getattr(message.sticker, 'emoji', '')
html_content.append(f'<img src="{url}" alt="Sticker {emoji}" style="max-width:300px; max-height:300px; object-fit:contain;">')
html_content.append('</div>')
content_media.append(f'<img src="{url}" alt="Sticker {emoji}" style="max-width:200px; max-height:200px; object-fit:contain;">')
content_media.append('</div>')
if webpage := getattr(message, "web_page", None): # Web page preview
if webpage_html := self._format_webpage(webpage, message):
html_content.append(webpage_html)
content_media.append(webpage_html)
if text: # Message text
html_content.append(f'<div class="message-text">{text}</div>')
html_media = '\n'.join(content_media)
html_media = self._sanitize_html(html_media)
return html_media
def _generate_html_footer(self, message: Message) -> str:
content_footer = []
if reactions_views_html := self._reactions_views_links(message): # Add reactions, views and links
content_footer.append(reactions_views_html)
html_footer = '\n'.join(content_footer)
html_footer = self._sanitize_html(html_footer)
return html_footer
if bottom_info:
if reactions_views_html := self._reactions_views_links(message): # Add reactions, views and links
html_content.append(reactions_views_html)
html = '\n'.join(html_content)
return self._sanitize_html(html)
def _add_hyperlinks_to_raw_urls(self, text: str) -> str:
try:
# Find all existing <a> tags
a_tags = re.finditer(r'<a[^>]*>.*?</a>', text)
# Store their positions
excluded_ranges = [(m.start(), m.end()) for m in a_tags]
# Find all URLs that are not already in HTML tags
a_tags = re.finditer(r'<a[^>]*>.*?</a>', text) # Find all existing <a> tags
excluded_ranges = [(m.start(), m.end()) for m in a_tags] # Store their positions
result = text
offset = 0
for match in re.finditer(r'https?://[^\s<>"\']+', text):
for match in re.finditer(r'https?://[^\s<>"\']+', text): # Find all URLs that are not already in HTML tags
start, end = match.span()
# Check if URL is inside an <a> tag
@@ -378,16 +395,6 @@ class PostParser:
logger.error(f"webpage_parsing_error: url {getattr(webpage, 'url', 'unknown')}, error {str(e)}")
return None
def _wrap_html(self, html_content: list) -> str:
struct = [
'<!DOCTYPE html>', '<html>',
'<head>', '<meta charset="UTF-8">', '</head>',
'<body>', *html_content, '</body>',
'</html>'
]
html_content = '\n'.join(struct)
return html_content
def _reactions_views_links(self, message: Message) -> Union[str, None]:
try:
parts = []
@@ -405,13 +412,11 @@ class PostParser:
channel_identifier = self.get_channel_username(message)
if channel_identifier:
links = []
if channel_identifier.startswith('-100'):
# For channels with only ID
if channel_identifier.startswith('-100'): # For channels with only ID
channel_id = channel_identifier[4:] # Remove '-100' prefix for web links
links.append(f'<a href="tg://resolve?domain=c/{channel_id}&post={message.id}">Open in Telegram</a>')
links.append(f'<a href="https://t.me/c/{channel_id}/{message.id}">Open in Web</a>')
else:
# For channels with username
else: # For channels with username
links.append(f'<a href="tg://resolve?domain={channel_identifier}&post={message.id}">Open in Telegram</a>')
links.append(f'<a href="https://t.me/{channel_identifier}/{message.id}">Open in Web</a>')
parts.append('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.join(links))
@@ -495,24 +500,15 @@ class PostParser:
if message.video and message.video.file_size > 100 * 1024 * 1024:
return
if message.photo:
file_data['file_unique_id'] = message.photo.file_unique_id
elif message.video:
file_data['file_unique_id'] = message.video.file_unique_id
elif message.document:
file_data['file_unique_id'] = message.document.file_unique_id
elif message.audio:
file_data['file_unique_id'] = message.audio.file_unique_id
elif message.voice:
file_data['file_unique_id'] = message.voice.file_unique_id
elif message.video_note:
file_data['file_unique_id'] = message.video_note.file_unique_id
elif message.animation:
file_data['file_unique_id'] = message.animation.file_unique_id
elif message.sticker:
file_data['file_unique_id'] = message.sticker.file_unique_id
elif message.web_page and message.web_page.photo:
file_data['file_unique_id'] = message.web_page.photo.file_unique_id
if message.photo: file_data['file_unique_id'] = message.photo.file_unique_id
elif message.video: file_data['file_unique_id'] = message.video.file_unique_id
elif message.document: file_data['file_unique_id'] = message.document.file_unique_id
elif message.audio: file_data['file_unique_id'] = message.audio.file_unique_id
elif message.voice: file_data['file_unique_id'] = message.voice.file_unique_id
elif message.video_note: file_data['file_unique_id'] = message.video_note.file_unique_id
elif message.animation: file_data['file_unique_id'] = message.animation.file_unique_id
elif message.sticker: file_data['file_unique_id'] = message.sticker.file_unique_id
elif message.web_page and message.web_page.photo: file_data['file_unique_id'] = message.web_page.photo.file_unique_id
if file_data['file_unique_id']:
file_data['channel'] = channel_username
+1 -1
View File
@@ -8,4 +8,4 @@ feedgen==1.0.0
python-dateutil==2.9.0.post0
python-magic==0.4.27
beautifulsoup4
bleach==6.1.0
bleach[css]==6.1.0
+101 -93
View File
@@ -61,55 +61,18 @@ def reorganize_post_content(html):
return ''.join(new_content)
def merge_posts(posts):
"""Helper function to merge multiple posts into one"""
if not posts:
logger.debug("No posts to merge")
return None
logger.debug(f"Merging {len(posts)} posts")
# Find post with most meaningful title
main_post = posts[0]
for post in posts:
current_title = post.get('title', '')
if current_title and current_title not in ['📷 Photo', '📹 Video', '📄 Document']:
main_post = post
logger.debug(f"Selected main post with title: {current_title}")
break
merged_post = main_post.copy()
merged_html = []
for post in posts:
merged_html.append(post['html'])
merged_post['html'] = '\n<br>\n'.join(merged_html)
# Reorganize content after merging
merged_post['html'] = reorganize_post_content(merged_post['html'])
logger.debug(f"Merged {len(posts)} posts successfully")
return merged_post
async def process_messages(messages, post_parser, channel):
async def create_messages_groups(messages):
"""
Process messages into formatted posts, handling media groups
Args:
messages: List of raw messages
post_parser: PostParser instance
channel: Channel name for logging
Returns:
List of formatted and merged posts
"""
posts = []
processing_groups = []
media_groups = {}
# First pass - collect messages and media groups
# First pass - collect messages and organize into processing groups
for message in messages:
try:
# Skip service messages about pinned posts
if message.service and 'PINNED_MESSAGE' in str(message.service):
logger.debug(f"Skipping pinned service message {message.id} in channel {channel}")
continue
if message.media_group_id:
@@ -117,41 +80,94 @@ async def process_messages(messages, post_parser, channel):
media_groups[message.media_group_id] = []
media_groups[message.media_group_id].append(message)
else:
formatted = post_parser.format_message_for_feed(
message,
top_info=True,
bottom_info=True
)
if formatted:
posts.append(formatted)
# Single message becomes its own processing group
processing_groups.append([message])
except Exception as e:
logger.error(f"feed_entry_error: channel {channel}, message_id {message.id}, error {str(e)}")
logger.error(f"message_processing_error: channel {message.chat.username}, message_id {message.id}, error {str(e)}")
continue
# Process media groups
for _group_id, group_messages in media_groups.items():
if not group_messages:
continue
group_messages.sort(key=lambda x: x.id)
formatted_posts = []
for i, msg in enumerate(group_messages):
formatted = post_parser.format_message_for_feed(
msg,
top_info=(i == 0),
bottom_info=(i == len(group_messages) - 1)
)
if formatted:
formatted_posts.append(formatted)
# Sort messages within media groups by message ID in descending order
for media_group in media_groups.values():
media_group.sort(key=lambda x: x.id, reverse=False)
processing_groups.append(media_group)
# Sort processing groups by date of first message in each group
processing_groups.sort(
key=lambda group: group[0].date,
reverse=True
)
return processing_groups
async def render_messages_groups(messages_groups, post_parser):
"""
Render message groups into HTML format
Args:
messages_groups: List of message groups (each group is a list of messages)
post_parser: PostParser instance
Returns:
List of rendered posts
"""
rendered_posts = []
for group in messages_groups:
try:
if len(group) == 1:
# Single message - simple case
message_data = post_parser.process_message(group[0])
html_parts = [
f'<div class="message-header">{message_data["html"]["header"]}</div>',
f'<div class="message-media">{message_data["html"]["media"]}</div>',
f'<div class="message-text">{message_data["html"]["body"]}</div>',
f'<div class="message-footer">{message_data["html"]["footer"]}</div>'
]
rendered_posts.append({
'html': '\n'.join(html_parts),
'date': message_data['date'],
'message_id': message_data['message_id'],
'title': message_data['html']['title'],
'text': message_data['text'],
'author': message_data['author']
})
else:
# Multiple messages in group - need to merge
processed_messages = [post_parser.process_message(msg) for msg in group]
if formatted_posts:
posts.append(merge_posts(formatted_posts))
# Find main message (one with text)
main_message = next(
(msg for msg in processed_messages if msg['text']),
processed_messages[0] # fallback to first if none has text
)
# Collect all media sections
all_media = [msg['html']['media'] for msg in processed_messages if msg['html']['media']]
combined_media = '\n'.join(all_media)
# Combine parts
html_parts = [
f'<div class="message-header">{main_message["html"]["header"]}</div>',
f'<div class="message-media">{combined_media}</div>',
f'<div class="message-text">{main_message["html"]["body"]}</div>',
f'<div class="message-footer">{main_message["html"]["footer"]}</div>'
]
rendered_posts.append({
'html': '\n'.join(html_parts),
'date': main_message['date'],
'message_id': main_message['message_id'],
'title': main_message['html']['title'],
'text': main_message['text'],
'author': main_message['author']
})
except Exception as e:
logger.error(f"message_group_rendering_error: error {str(e)}")
continue
# Sort all posts by date
posts.sort(key=lambda x: x['date'], reverse=True)
return posts
# Sort by date
rendered_posts.sort(key=lambda x: x['date'], reverse=True)
return rendered_posts
async def generate_channel_rss(channel: str, post_parser: Optional[PostParser] = None, client = None, limit: int = 20) -> str:
"""
@@ -179,12 +195,8 @@ async def generate_channel_rss(channel: str, post_parser: Optional[PostParser] =
base_url = Config['pyrogram_bridge_url']
try:
# Преобразуем числовой ID канала обратно в int, если это возможно
channel_id = channel
if isinstance(channel, str) and channel.startswith('-100'):
channel_id = int(channel)
channel_info = await post_parser.client.get_chat(channel_id)
channel = post_parser.channel_name_prepare(channel)
channel_info = await post_parser.client.get_chat(channel)
channel_title = channel_info.title or f"Telegram: {channel}"
channel_username = post_parser.get_channel_username(channel_info)
if not channel_username:
@@ -205,30 +217,29 @@ async def generate_channel_rss(channel: str, post_parser: Optional[PostParser] =
# Collect messages
messages = []
async for message in post_parser.client.get_chat_history(channel_id, limit=limit):
async for message in post_parser.client.get_chat_history(channel, limit=limit):
messages.append(message)
# Process messages into formatted posts
final_posts = await process_messages(messages, post_parser, channel)
# Process messages into groups and render them
message_groups = await create_messages_groups(messages)
final_posts = await render_messages_groups(message_groups, post_parser)
# Generate feed entries
for post in final_posts:
fe = fg.add_entry()
fe.title(post.get('title', 'Untitled post'))
fe.title(post['title'])
post_link = f"https://t.me/{channel_username}/{post['message_id']}"
fe.link(href=post_link)
html_content = post.get('html', '')
text_content = post.get('text', '')
fe.description(text_content.replace('\n', ' '))
fe.content(content=html_content, type='CDATA')
fe.description(post['text'].replace('\n', ' '))
fe.content(content=post['html'], type='CDATA')
pub_date = datetime.fromtimestamp(post['date'], tz=timezone.utc)
fe.pubDate(pub_date)
fe.guid(post_link, permalink=True)
if post.get('author') and post['author'] != main_name:
if post['author'] and post['author'] != main_name:
fe.author(name="", email=post['author'])
rss_feed = fg.rss_str(pretty=True)
@@ -264,7 +275,6 @@ async def generate_channel_html(channel: str, post_parser: Optional[PostParser]
base_url = Config['pyrogram_bridge_url']
try:
# Преобразуем числовой ID канала обратно в int, если это возможно
channel_id = channel
if isinstance(channel, str) and channel.startswith('-100'):
channel_id = int(channel)
@@ -289,18 +299,16 @@ async def generate_channel_html(channel: str, post_parser: Optional[PostParser]
async for message in post_parser.client.get_chat_history(channel_id, limit=limit):
messages.append(message)
# Process messages into formatted posts
final_posts = await process_messages(messages, post_parser, channel)
# Process messages into groups and render them
message_groups = await create_messages_groups(messages)
final_posts = await render_messages_groups(message_groups, post_parser)
html_posts = []
for post in final_posts:
html_content = post.get('html', '')
if html_content:
html_posts.append(f'<div class="telegram-post">{html_content}</div>')
# Generate HTML content
html_posts = [post['html'] for post in final_posts]
return '\n<hr class="post-divider">\n'.join(html_posts)
except Exception as e:
logger.error(f"rss_generation_error: channel {channel}, error {str(e)}")
logger.error(f"html_generation_error: channel {channel}, error {str(e)}")
raise
def create_error_feed(channel: str, base_url: str) -> str: