#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# flake8: noqa
# pylint: disable=broad-exception-raised, raise-missing-from, too-many-arguments, redefined-outer-name
# pylint: disable=multiple-statements, logging-fstring-interpolation, trailing-whitespace, line-too-long
# pylint: disable=broad-exception-caught, missing-function-docstring, missing-class-docstring
# pylint: disable=f-string-without-interpolation
# pylance: disable=reportMissingImports, reportMissingModuleSource
import logging
import asyncio
import re
import os
import html
import inspect
from datetime import datetime
from typing import Union, Dict, Any, List, Optional
from pyrogram.types import Message
from pyrogram.enums import MessageMediaType
from bleach.css_sanitizer import CSSSanitizer
from bleach import clean as HTMLSanitizer
from config import get_settings
from file_io import upsert_media_file_ids_bulk_sync, DB_PATH
from url_signer import generate_media_digest
Config = get_settings()
logger = logging.getLogger(__name__)
# Media types that never yield a renderable image/video in the feed: they are
# represented by info blocks (or nothing), so posts carrying them get "no_image".
NO_IMAGE_MEDIA_TYPES = {
MessageMediaType.GIVEAWAY,
MessageMediaType.GIVEAWAY_WINNERS,
MessageMediaType.CHECKLIST,
MessageMediaType.CONTACT,
MessageMediaType.LOCATION,
MessageMediaType.VENUE,
MessageMediaType.DICE,
MessageMediaType.GAME,
MessageMediaType.INVOICE,
MessageMediaType.UNSUPPORTED,
MessageMediaType.PAID_MEDIA,
}
def _poll_media_object(message):
"""Return (media_obj, kind) attached to a poll's description_media, or (None, None).
Kurigram 2.2.23 polls may carry media in description_media / explanation_media
(MessageContent objects). Only description_media is considered for rendering:
explanation_media is the quiz-answer explanation attachment and does not belong
in a channel feed, so it is deliberately NOT rendered (api_server's download
lookup still covers it in case a URL for it exists).
kind is the render hint: 'img' for photo/sticker, 'video' for video/animation.
All attribute access goes through getattr: older Poll objects and test mocks do
not define these fields. A candidate is accepted only when its file_unique_id is
a non-empty str — without it nothing can be served through the /media pipeline,
and this also keeps loose MagicMock-based poll mocks from producing false
positives via auto-created attributes.
"""
poll = getattr(message, 'poll', None)
if poll is None:
return None, None
description_media = getattr(poll, 'description_media', None)
if description_media is None:
return None, None
candidates = (
('photo', 'img'),
('video', 'video'),
('animation', 'video'),
('sticker', 'img'),
)
for attr, kind in candidates:
media_obj = getattr(description_media, attr, None)
if media_obj is None:
continue
file_unique_id = getattr(media_obj, 'file_unique_id', None)
if isinstance(file_unique_id, str) and file_unique_id:
return media_obj, kind
return None, None
def _story_media_object(message):
"""Return (media_obj, kind) for message.story media (video wins over photo), or (None, None).
kind is the render hint ('video' or 'img'). Rendering, URL generation and file-id
collection all go through this helper, so they always agree on WHICH story object
is used (e.g. when a story video lacks a usable file_unique_id and the helper
falls back to the photo, the tag type follows the fallback too).
Same defensive rules as _poll_media_object: getattr-only access and a non-empty
str file_unique_id requirement.
"""
story = getattr(message, 'story', None)
if story is None:
return None, None
for attr, kind in (('video', 'video'), ('photo', 'img')):
media_obj = getattr(story, attr, None)
if media_obj is None:
continue
file_unique_id = getattr(media_obj, 'file_unique_id', None)
if isinstance(file_unique_id, str) and file_unique_id:
return media_obj, kind
return None, None
#tests
#http://127.0.0.1:8000/post/html/DragorWW_space/114 — video
#http://127.0.0.1:8000/post/html/DragorWW_space/20 - many photos
#http://127.0.0.1:8000/post/html/DragorWW_space/58 - photos+video
#http://127.0.0.1:8000/post/html/DragorWW_space/44 - poll
#http://127.0.0.1:8000/post/html/DragorWW_space/46 - photo
#http://127.0.0.1:8000/post/html/DragorWW_space/49, http://127.0.0.1:8000/post/html/DragorWW_space/63 — webpage
#http://127.0.0.1:8000/post/html/deckru/826 - animation
#http://127.0.0.1:8000/post/html/DragorWW_space/61 — links
#http://127.0.0.1:8000/post/html/theyforcedme/3577 - video note
#http://127.0.0.1:8000/post/html/theyforcedme/3572 - audio
#http://127.0.0.1:8000/post/html/theyforcedme/3558 - audio-note
#http://127.0.0.1:8000/html/vvzvlad_lytdybr/426 - sticker
#http://127.0.0.1:8000/html/wrkshprn/634
# http://127.0.0.1:8000/html/ni404head/1278
# http://127.0.0.1:8000/html/fieryfiles/4840 — links without
#http://127.0.0.1:8000/html/ru2ch_ban/26586 - large video
#http://127.0.0.1:8000/html/smallpharm/4828 - forwarded from channel
#http://127.0.0.1:8000/html/vvzvlad_lytdybr/659 - forwarded from user
#http://127.0.0.1:8000/html/ufjqk/1070 - reply to
#http://127.0.0.1:8000/html/tetstststststststffd/4 - forwarded from channel without name
#http://127.0.0.1:8000/html/tetstststststststffd/14 - forwarded from hidden user
#https://t.me/smallpharm/4802 many pics and text
# https://t.me/webstrangler/3987 many pics without text
# https://t.me/teslacoilpro/7117
# https://t.me/red_spades/1222 many media + text
#https://t.me/ni404head/1283 file
#http://127.0.0.1:8000/rss/-1002069358234 channel with numeric ID
class PostParser:
def __init__(self, client):
self.client = client
# Media file-id records collected during rendering. _save_media_file_ids
# appends (channel, post_id, file_unique_id, ts) tuples here instead of
# touching asyncio/DB directly (see 4.2). A fresh PostParser is created per
# request and rendering runs in a single thread, so this list is thread-safe.
# The caller flushes it once via upsert_media_file_ids_bulk_sync after render.
self._pending_media_ids: List[tuple] = []
@staticmethod
def get_all_possible_flags() -> List[str]:
"""Dynamically extracts all possible flag names from the _extract_flags method."""
try:
source_code = inspect.getsource(PostParser._extract_flags)
# Find all occurrences of flags.append("flag_name")
flags = re.findall(r'flags\.append\("([^"]+)"\)', source_code)
# Return unique flags
return sorted(list(set(flags)))
except Exception as e:
logger.error(f"flag_extraction_error: Could not extract flags dynamically, error {str(e)}")
# Fallback to a manually defined list might be needed here in case of error,
# but for now, we return an empty list.
return []
def channel_name_prepare(self, channel: str | int) -> Union[str, int]:
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',
debug: bool = False) -> Union[str, Dict[Any, Any], None]:
try:
prepared_channel_id: Union[str, int] = self.channel_name_prepare(channel)
# Bound the single-post fetch so a hung RPC cannot block the request forever.
message = await asyncio.wait_for(
self.client.get_messages(prepared_channel_id, post_id),
timeout=30,
)
if Config["debug"]: print(message)
if not message or getattr(message, 'empty', False):
logger.error(f"post_not_found_or_empty: channel {prepared_channel_id}, post_id {post_id}")
return None
# Single-post outputs need sanitized body/footer (no whole-feed pass exists here).
# raw_message is only needed for JSON output and for debug HTML.
include_raw = (output_type == 'json') or debug
processed_message = self.process_message(message, include_raw=include_raw, sanitize=True)
# Flush media file-id records collected during rendering with a single bulk upsert.
await self._flush_pending_media_ids()
if output_type == 'html':
return self._format_html(processed_message, debug)
elif output_type == 'json':
return processed_message
else:
logger.error(f"Invalid output type: {output_type}")
return None
except Exception as e:
# Log the specific exception type and message (use original channel arg to avoid UnboundLocalError)
logger.error(f"post_parsing_error: channel {channel}, post_id {post_id}, error_type {type(e).__name__}, error_message {str(e)}")
# Optional: include traceback for more detail
# import traceback
# logger.error(traceback.format_exc())
raise
def _get_author_info(self, message: Message) -> str: #Tests: tests/postparser_author_info.py
if message.sender_chat:
title = getattr(message.sender_chat, 'title', None)
username = getattr(message.sender_chat, 'username', None)
title = title.strip() if title else ''
username = username.strip() if username else ''
if username:
if title:
return f"{title} (@{username})"
else:
return f"@{username}"
return title
elif message.from_user:
first = getattr(message.from_user, 'first_name', None)
last = getattr(message.from_user, 'last_name', None)
username = getattr(message.from_user, 'username', None)
first = first.strip() if first else ''
last = last.strip() if last else ''
username = username.strip() if username else ''
name = ' '.join(filter(None, [first, last]))
if not name:
return "Unknown author"
if username:
return f"{name} (@{username})"
else:
return name
return "Unknown author"
def _truncate_title(self, first_line: str) -> str:
"""Truncate the title """
# Step 1: Cut at the first period followed by a space, if present
period_match = re.search(r'\.(?=\s)', first_line)
if period_match: first_line = first_line[:period_match.start()].rstrip()
# Step 2: Apply the main cut logic
cut_at = 37
max_extra_chars = 15
limit_index = cut_at + max_extra_chars # 52
if len(first_line) > cut_at:
cut_limit = min(len(first_line), limit_index)
last_space_index = first_line.rfind(' ', 0, cut_limit)
if last_space_index != -1 and last_space_index >= cut_at: cut_index = last_space_index
else: cut_index = cut_limit
title_segment = first_line[:cut_index]
title_segment = re.sub(r'[\s.,;:]+$', '', title_segment).strip()
if len(first_line[:cut_index]) < len(first_line): return f"{title_segment}..."
else: return title_segment
else: return first_line
def _service_message_title(self, message: Message) -> Union[str, None]:
if service := getattr(message, "service", None):
if 'PINNED_MESSAGE' in str(service): return "📌 Pinned message"
elif 'NEW_CHAT_PHOTO' in str(service): return "🖼 New chat photo"
elif 'NEW_CHAT_TITLE' in str(service): return "✏️ New chat title"
elif 'VIDEO_CHAT_STARTED' in str(service): return "▶️ Video chat started"
elif 'VIDEO_CHAT_ENDED' in str(service): return "⏹ Video chat ended"
elif 'VIDEO_CHAT_SCHEDULED' in str(service): return "⏰ Video chat scheduled"
elif 'GROUP_CHAT_CREATED' in str(service): return "✨ Group chat created"
elif 'CHANNEL_CHAT_CREATED' in str(service): return "✨ Chat created"
elif 'DELETE_CHAT_PHOTO' in str(service): return "🗑️ Chat photo deleted"
return None
def _media_message_title(self, message: Message) -> Union[str, None]:
if message.media:
if message.media == MessageMediaType.POLL:
if message.poll is not None and hasattr(message.poll, 'question'):
q = message.poll.question
poll_question = (q.text if hasattr(q, 'text') else str(q)).strip()
if poll_question:
return f"📊 Poll: {poll_question}"
return "📊 Poll"
if message.media == MessageMediaType.DOCUMENT:
is_mime = (message.document is not None and hasattr(message.document, 'mime_type'))
if is_mime and message.document is not None and message.document.mime_type == 'application/pdf':
return "📄 PDF Document"
return "📎 Document"
if message.media == MessageMediaType.PHOTO: return "📷 Photo"
if message.media == MessageMediaType.VIDEO: return "🎥 Video"
if message.media == MessageMediaType.ANIMATION: return "🎞 GIF"
if message.media == MessageMediaType.AUDIO: return "🎵 Audio"
if message.media == MessageMediaType.VOICE: return "🎤 Voice"
if message.media == MessageMediaType.VIDEO_NOTE: return "📱 Video circle"
if message.media == MessageMediaType.STICKER: return "🎯 Sticker"
# New media types (Kurigram 2.2.23). New Message attributes are accessed
# via getattr only — older objects/mocks may not define them.
if message.media == MessageMediaType.LIVE_PHOTO: return "📸 Live Photo"
if message.media == MessageMediaType.STORY: return "📖 Story"
if message.media == MessageMediaType.GIVEAWAY: return "🎁 Giveaway"
if message.media == MessageMediaType.GIVEAWAY_WINNERS: return "🏆 Giveaway winners"
if message.media == MessageMediaType.PAID_MEDIA: return "⭐ Paid media"
if message.media == MessageMediaType.CHECKLIST:
checklist = getattr(message, 'checklist', None)
title = getattr(checklist, 'title', None) if checklist else None
if isinstance(title, str) and title.strip():
return f"📝 Checklist: {title.strip()[:50]}"
return "📝 Checklist"
if message.media == MessageMediaType.CONTACT: return "👤 Contact"
if message.media == MessageMediaType.LOCATION: return "📍 Location"
if message.media == MessageMediaType.VENUE:
venue = getattr(message, 'venue', None)
venue_title = getattr(venue, 'title', None) if venue else None
if isinstance(venue_title, str) and venue_title.strip():
return f"📍 {venue_title.strip()}"
return "📍 Venue"
if message.media == MessageMediaType.DICE: return "🎲 Dice"
if message.media == MessageMediaType.GAME: return "🎮 Game"
if message.media == MessageMediaType.INVOICE: return "🧾 Invoice"
if message.media == MessageMediaType.UNSUPPORTED: return "⚠️ Unsupported content"
# Web pages (if no text or media title)
if message.web_page:
if message.web_page.title:
return f"🔗 {message.web_page.title}"
return "🔗 Web link"
return None
def _generate_base_title(self, message: Message) -> Union[str, None]:
"""Generates the base title without the FWD prefix."""
# --- Text Processing --- (Phase 1: Process text if available)
text = message.text or message.caption or ''
text_stripped = text.strip()
processed_title = None
text_was_processed = False # Flag to indicate if text processing block was entered
min_title_length = 10 # Minimum length for text to be preferred over media/webpage
if text_stripped:
text_was_processed = True
text_has_urls = bool(re.search(r'https?://[^\s<>"\']+', text_stripped))
clean_text = html.unescape(text) # Remove HTML entities
clean_text = re.sub(r'<[^>]+?>', '', clean_text) # Remove HTML tags
clean_text = re.sub(r'https?://[^\s<>"\']+', '', clean_text) # Remove URLs
clean_text = clean_text.strip() # Remove whitespaces
if clean_text: # If text remains after cleaning
# Process URL at the beginning
if text_has_urls and "://" in clean_text:
clean_text = clean_text.split("://")[0].strip()
# Process line breaks & punctuation
first_line = clean_text.split('\n', 1)[0] # Get first line
first_line = re.sub(r'[.,;:]+$', '', first_line) # Remove trailing punctuation
first_line = first_line.strip() # Remove whitespaces
# Handle uppercase
if first_line.isupper() and len(first_line) > 1:
first_line = first_line.lower().capitalize() # Downcase and capitalize first letter
# --- Trim long strings ---
processed_title = self._truncate_title(first_line) # Truncate title
# --- Decision Logic --- (Phase 2: Decide whether to use processed text or fallback)
# Condition to use processed_title: It exists AND (it's long enough OR there's no media)
# Webpage presence doesn't prevent using short text if there's no media.
use_text_title = processed_title and (len(processed_title) >= min_title_length or not message.media)
if use_text_title: return processed_title
# --- Fallback Processing --- (Phase 3: If text wasn't suitable or was discarded)
# Handle specific cases for non-meaningful original text (if text block was entered but didn't yield a usable title)
if text_was_processed and not use_text_title:
if re.search(r'(?:youtube\.com|youtu\.be)', text_stripped.lower()):
if message.web_page and message.web_page.title:
return f"🎥 YouTube: {message.web_page.title}"
else:
return "🎥 YouTube Link"
# Check if original text was just a URL and there's a webpage title
if message.web_page and message.web_page.title:
url_match = re.match(r'^\s*(https?://[^\s<>"\']+)\s*$', text_stripped)
if url_match: return f"🔗 {message.web_page.title}"
if text_has_urls: # If original text had any URL (and wasn't YouTube/Webpage with title)
return "🔗 Web link"
return None
def _generate_title(self, message: Message) -> str: #Tests: tests/postparser_gen_title.py
"""Generate a title for a message, based on its content."""
title = None
title = self._service_message_title(message)
if title is None: title = self._generate_base_title(message)
if title is None: title = self._media_message_title(message)
if title is None: title = "❓ Unknown Post"
if message.forward_origin: title = f"FWD: {title}"
return title
def _format_reply_info(self, message: Message) -> Union[str, None]:
is_pinned = (getattr(message, "service", None) and 'PINNED_MESSAGE' in str(message.service))
reply_to = getattr(message, "reply_to_message", None)
if is_pinned and reply_to:
reply_text = reply_to.text or reply_to.caption or ''
if len(reply_text) > 100:
reply_text = reply_text[:100] + '...'
return f'
'
if reply_to:
reply_text = reply_to.text or reply_to.caption or ''
if len(reply_text) > 100:
reply_text = reply_text[:100] + '...'
channel_username = getattr(reply_to.sender_chat, "username", None)
if channel_username:
reply_link = f'#{reply_to.id}'
return f'
(bleach can't run
# here because is not in the allowed-tags whitelist and would be stripped).
if debug:
raw_escaped = html.escape(str(data.get("raw_message", "")))
html_content.append(f'{raw_escaped}')
html_data = '\n'.join(html_content)
return html_data
def _format_flags(self, flags_list: list) -> str:
if not Config['show_post_flags']: return ''
return_html = ""
if flags_list:
flags_html = ['')
return_html = ' '.join(flags_html)
return return_html
def process_message(self, message: Message, include_raw: bool = False, sanitize: bool = True) -> Dict[Any, Any]:
"""Build the processed representation of a message.
Args:
message: the Pyrogram message.
include_raw: when True, compute the (expensive) full ``str(message)``
serialization into ``result['raw_message']``. Only JSON output and
debug HTML need it; feed generation must pass False to avoid
serializing every post.
sanitize: when True, run the html body and footer through a single
bleach pass each. Single-post HTML and JSON need this (there is no
whole-feed pass on those paths). Feed generation passes False and
relies on the final sanitize in rss_generator (per-post for RSS,
whole-feed for HTML), so no
fragment is sanitized more than once.
"""
# Compute html body once — avoids triple _generate_html_body calls.
# The internal per-fragment sanitize passes were removed (4.4); sanitize
# exactly once per output boundary here when requested.
html_body = self._generate_html_body(message)
# NOTE (stage-4 4.4 consequence): flags are now extracted from the PRE-sanitize
# body (the per-fragment sanitize that used to run inside _generate_html_body was
# removed). Legitimate links are unaffected — bleach keeps whitelisted
# — so link/foreign_channel/mention flags are identical for
# normal content. They can differ ONLY for URL-like text that bleach would strip
# (e.g. a URL inside a disallowed attribute); flags are non-security (used for
# exclude_flags filtering / display), so this edge divergence is accepted rather
# than re-adding a per-message sanitize pass that 4.4 deliberately eliminated.
flags = self._extract_flags(message, html_body=html_body)
footer = self.generate_html_footer(message, flags_list=flags)
if sanitize:
html_body = self._sanitize_html(html_body)
footer = self._sanitize_html(footer)
result = {
'channel': self.get_channel_username(message),
'message_id': message.id,
'date': datetime.timestamp(message.date) if message.date else None,
'date_formatted': message.date.strftime('%Y-%m-%d %H:%M:%S') if message.date else None,
'text': message.text or message.caption or '',
'html': {
'title': self._generate_title(message),
'body': html_body,
'footer': footer
},
'flags': flags,
'author': self._get_author_info(message),
'views': message.views,
'reactions': self._extract_reactions(message),
'media_group_id': message.media_group_id,
'service': getattr(message, "service", None),
'show_caption_above_media': getattr(message, 'show_caption_above_media', False),
}
if include_raw:
# Full serialization of the message — expensive; only for JSON/debug.
result['raw_message'] = str(message)
# Add webpage data if available
if webpage := getattr(message, "web_page", None):
result['webpage'] = {
'type': getattr(webpage, 'type', None),
'url': getattr(webpage, 'url', None),
'display_url': getattr(webpage, 'display_url', None),
'site_name': getattr(webpage, 'site_name', None),
'title': getattr(webpage, 'title', None),
'description': getattr(webpage, 'description', None),
'has_large_media': getattr(webpage, 'has_large_media', False),
'is_telegram_link': getattr(webpage, 'type', '') == 'telegram_message'
}
return result
def _sanitize_html(self, html_raw: str) -> str:
import time as _time
sanitize_start = _time.monotonic()
allowed_tags = ['p', 'a', 'b', 'i', 'strong',
'em', 's', 'del', 'ul', 'ol', 'li', 'br',
'div', 'span', 'img', 'video', 'audio',
'source']
allowed_attributes = {
'a': ['href', 'title', 'target'],
'img': ['src', 'alt', 'style'],
'video': ['controls', 'src', 'style'],
'audio': ['controls', 'style'],
'source': ['src', 'type'],
'div': ['class', 'style'],
'span': ['class']
}
try:
css_sanitizer = CSSSanitizer(
allowed_css_properties=["max-width", "max-height", "object-fit", "width", "height"]
)
sanitized_html = HTMLSanitizer(
html_raw,
tags=allowed_tags,
attributes=allowed_attributes,
protocols=['http', 'https', 'tg'],
css_sanitizer=css_sanitizer,
strip=True,
)
elapsed = _time.monotonic() - sanitize_start
if elapsed > 0.05:
logger.warning(f"diag_sanitize_slow: bleach.clean() took {elapsed:.3f}s, input_len={len(html_raw)}")
return sanitized_html
except Exception as e:
logger.error(f"html_sanitization_error: error {str(e)}")
return html_raw
def _format_forward_info(self, message: Message) -> Union[str, None]:
if forward_origin := getattr(message, "forward_origin", None):
# Case 1: Channel or supergroup forward (has chat attribute)
if sender_chat := getattr(forward_origin, "chat", None):
forward_title = getattr(sender_chat, "title", "Unknown channel")
forward_username = getattr(sender_chat, "username", None)
if forward_username:
forward_link = f'{forward_title} (@{forward_username})'
return f''
return f''
# Case 2: Hidden user (MessageOriginHiddenUser)
if hasattr(forward_origin, "sender_user_name") and forward_origin.sender_user_name:
sender_name = forward_origin.sender_user_name
return f''
# Case 3: Regular user (MessageOriginUser)
if hasattr(forward_origin, "sender_user") and forward_origin.sender_user:
user = forward_origin.sender_user
name_parts = []
if hasattr(user, "first_name") and user.first_name:
name_parts.append(user.first_name)
if hasattr(user, "last_name") and user.last_name:
name_parts.append(user.last_name)
sender_name = " ".join(name_parts) if name_parts else "Unknown user"
if hasattr(user, "username") and user.username:
sender_name = f"{sender_name} (@{user.username})"
return f''
# Case 4: Channel without username (MessageOriginChannel)
if hasattr(forward_origin, "chat_id") and hasattr(forward_origin, "title"):
title = forward_origin.title if forward_origin.title else "Unknown channel"
return f''
# Case 5: Default for any other type of forward_origin
origin_type = getattr(forward_origin, "type", "unknown")
logger.debug(f"unhandled_forward_type: {origin_type}, data: {forward_origin}")
return f''
return None
def _get_post_text_with_urls(self, message: Message) -> Union[str, None]:
if message.text: text = message.text.html
elif message.caption: text = message.caption.html
else: return None
text = text.replace('\n', '
') # Replace newlines with
text_html = self._add_hyperlinks_to_raw_urls(text)
return text_html
def _generate_html_body(self, message: Message) -> str:
content_body = []
text_html = self._get_post_text_with_urls(message)
poll_html = self._format_poll(message)
forward_html = self._format_forward_info(message)
reply_html = self._format_reply_info(message)
media_html = self._generate_html_media(message)
content_body.append(f'')
if forward_html:
content_body.append(forward_html) # Forward info
content_body.append("
")
if reply_html:
content_body.append(reply_html) # Reply info
content_body.append("
")
show_caption_above = getattr(message, 'show_caption_above_media', False)
if show_caption_above:
if text_html:
content_body.append(text_html)
content_body.append("
")
if media_html:
content_body.append(media_html)
content_body.append("
")
else:
if media_html:
content_body.append(media_html)
content_body.append("
")
if text_html:
content_body.append(text_html)
content_body.append("
")
if poll_html: content_body.append(poll_html) # Poll
if special_html := self._format_special_media(message): content_body.append(special_html) # Special media info blocks
if message.forward_origin: content_body.append(f"--- Forwarded post end ---") # Forward info end
content_body.append(f'
')
# NOTE: sanitize is NOT applied here. Sanitization happens exactly once per
# output boundary (process_message for single-post/JSON; in rss_generator the
# per-post pass for RSS and the whole-feed pass for HTML). See the map (4.4).
html_body = '\n'.join(content_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']
# Poll media (Kurigram 2.2.23): a poll may carry description_media which IS
# renderable through the regular /media pipeline.
poll_media_obj, poll_media_kind = _poll_media_object(message)
if message.media == MessageMediaType.PAID_MEDIA:
# Paid media cannot be downloaded (it is paid content) — render an info
# block instead of a media element. Attributes via getattr only.
paid_media = getattr(message, 'paid_media', None)
stars_amount = getattr(paid_media, 'stars_amount', 0) if paid_media else 0
paid_items = getattr(paid_media, 'media', None) if paid_media else None
items_count = len(paid_items) if isinstance(paid_items, (list, tuple)) else 0
content_media.append(f'')
# Info-block-only media types (NO_IMAGE_MEDIA_TYPES) are rendered by
# _format_special_media — do not open an empty message-media container for
# them. PAID_MEDIA (also in that set) is handled by the branch above; POLL is
# not in the set and is let in only when it carries renderable poll media.
elif (message.media
and message.media not in NO_IMAGE_MEDIA_TYPES
and (message.media != MessageMediaType.POLL or poll_media_obj is not None)):
content_media.append(f'')
else:
file = f"{channel_username}/{message.id}/{file_unique_id}"
digest = generate_media_digest(file)
url = f"{base_url}/media/{file}/{digest}"
logger.debug(f"Collected media file: {channel_username}/{message.id}/{file_unique_id}")
# Check if document is a PDF file
if (message.media == MessageMediaType.DOCUMENT and
message.document is not None and hasattr(message.document, 'mime_type') and
message.document.mime_type == 'application/pdf'):
# Only attempt to create link if channel_username is available
if channel_username.startswith('-100'):
tg_link = f"https://t.me/c/{channel_username[4:]}/{message.id}"
else:
tg_link = f"https://t.me/{channel_username}/{message.id}"
content_media.append(f'')
content_media.append(f'[PDF-файл]')
elif message.media in [MessageMediaType.PHOTO, MessageMediaType.DOCUMENT]:
content_media.append(f'
')
elif message.media == MessageMediaType.VIDEO:
content_media.append(f'')
elif message.media == MessageMediaType.ANIMATION:
content_media.append(f'')
elif message.media == MessageMediaType.VIDEO_NOTE:
content_media.append(f'')
elif message.media == MessageMediaType.AUDIO:
mime_type = getattr(message.audio, 'mime_type', 'audio/mpeg')
content_media.append(f'')
content_media.append('
')
elif message.media == MessageMediaType.VOICE:
mime_type = getattr(message.voice, 'mime_type', 'audio/ogg')
content_media.append(f'')
content_media.append('
')
elif message.media == MessageMediaType.STICKER:
emoji = getattr(message.sticker, 'emoji', '')
if getattr(message.sticker, 'is_video', False):
content_media.append(f'')
else:
content_media.append(f'
')
elif message.media == MessageMediaType.LIVE_PHOTO:
# Live photo is effectively a short video clip.
content_media.append(f'')
elif message.media == MessageMediaType.STORY:
# Choose the tag from the SAME helper that produced the URL's
# file_unique_id, so the tag type always matches the URL object.
story_media_obj, story_media_kind = _story_media_object(message)
if story_media_obj is not None and story_media_kind == 'video':
content_media.append(f'')
elif story_media_obj is not None:
content_media.append(f'
')
elif message.media == MessageMediaType.POLL and poll_media_obj is not None:
if poll_media_kind == 'video':
content_media.append(f'')
else:
content_media.append(f'
')
content_media.append('')
if webpage := getattr(message, "web_page", None): # Web page preview
if webpage_html := self._format_webpage(webpage, message):
if len((message.text or message.caption or '').strip()) <= 10:
content_media.append(f'')
content_media.append(webpage_html)
content_media.append('')
# Not sanitized here — this fragment is embedded in the body and sanitized
# once at the output boundary (see the 4.4 sanitize coverage map).
html_media = '\n'.join(content_media)
return html_media
def _format_webpage(self, webpage, message) -> Union[str, None]:
base_url = Config['pyrogram_bridge_url']
try:
# Check if this is a Telegram message link
is_telegram_message = getattr(webpage, "type", "") == "telegram_message"
if is_telegram_message:
# Telegram message preview with distinctive styling
html_parts = [("""""")]
html_parts.append(f'📱 Telegram')
else:
# Regular webpage preview
html_parts = ['']
# Add site name if available
if site_name := getattr(webpage, "site_name", None):
html_parts.append(f'{site_name}')
# Add title with link if available
if title := getattr(webpage, "title", None):
url = getattr(webpage, "url", "#")
html_parts.append(f'')
html_parts.append(f'{title}')
# Add description if available
if description := getattr(webpage, "description", None):
# Process the description to handle line breaks and possibly HTML
processed_description = description.replace('\n', '
')
processed_description = self._add_hyperlinks_to_raw_urls(processed_description)
html_parts.append(f'{processed_description}')
# Display URL for non-telegram links or when display_url is available
if not is_telegram_message:
display_url = getattr(webpage, "display_url", None)
url = getattr(webpage, "url", None)
if display_url:
html_parts.append(f'{display_url}')
elif url:
html_parts.append(f'{url}')
# Add photo if available
if photo := getattr(webpage, "photo", None):
if file_unique_id := getattr(photo, "file_unique_id", None):
channel_username = self.get_channel_username(message)
# Guard: skip photo if channel_username is unavailable to avoid broken URLs
if channel_username:
file = f"{channel_username}/{message.id}/{file_unique_id}"
digest = generate_media_digest(file)
url = f"{base_url}/media/{file}/{digest}"
html_parts.append(f'')
html_parts.append(f'')
html_parts.append(f'
')
html_parts.append('')
return '\n'.join(html_parts)
except Exception as e:
logger.error(f"webpage_parsing_error: url {getattr(webpage, 'url', 'unknown')}, error {str(e)}")
return None
def generate_html_footer(self, message: Message, flags_list: Optional[List[str]] = None) -> str:
content_footer = []
content_footer.append('
')
if reactions_views_html := self._reactions_views_links(message): # Add reactions, views, date and links
content_footer.append(reactions_views_html)
# Use provided flags_list if available, otherwise extract from message
current_flags = flags_list if flags_list is not None else self._extract_flags(message)
if current_flags:
flags_html = self._format_flags(current_flags)
content_footer.append('
' + flags_html)
# Not sanitized here — sanitized once at the output boundary (4.4 coverage map):
# process_message for single-post/JSON; per-post (RSS) / whole-feed (HTML) for feeds.
html_footer = '\n'.join(content_footer)
return html_footer
def _add_hyperlinks_to_raw_urls(self, text: str) -> str:
try:
a_tags = re.finditer(r']*>.*?', text) # Find all existing tags
excluded_ranges = [(m.start(), m.end()) for m in a_tags] # Store their positions
result = text
offset = 0
# Find all URLs that are not already in HTML tags
for match in re.finditer(r'https?://[^\s<>"\']+', text):
start, end = match.span()
# Check if URL is inside an tag
is_in_tag = any(tag_start <= start and end <= tag_end for tag_start, tag_end in excluded_ranges)
if not is_in_tag:
url = match.group()
replacement = f'{url}'
# Apply replacement considering offset
result = result[:start + offset] + replacement + result[end + offset:]
offset += len(replacement) - (end - start)
return result
except Exception as e:
logger.error(f"url_processing_error: error {str(e)}")
return text
def _reactions_views_links(self, message: Message) -> Union[str, None]:
try:
parts = []
# First line: reactions + views + date
first_line_parts = []
# Add reactions
reactions_html = ""
if reactions := getattr(message, "reactions", None):
for reaction in reactions.reactions:
if getattr(reaction, "is_paid", False): emoji = "⭐"
elif hasattr(reaction, "emoji") and reaction.emoji: emoji = reaction.emoji
elif hasattr(reaction, "custom_emoji_id"): emoji = "❓" # Then check custom emoji
else: emoji = "❓" # Default for unknown cases
reactions_html += f'{emoji} {reaction.count} '
reactions_html = reactions_html.rstrip()
first_line_parts.append(reactions_html)
# Add views
if views := getattr(message, "views", None):
first_line_parts.append(f'{views} 👁')
# Add date
if message.date:
formatted_date = message.date.strftime("%d/%m/%y, %H:%M:%S")
first_line_parts.append(f'{formatted_date}')
if message.id:
first_line_parts.append(f'')
if first_line_parts:
parts.append(' | '.join(first_line_parts))
# Second line: links
channel_identifier = self.get_channel_username(message)
if channel_identifier:
links = []
base_url = Config['pyrogram_bridge_url']
if channel_identifier.startswith('-100'):
channel_id = channel_identifier[4:]
links.append(f'Open in Telegram')
links.append(f'Open in Web')
else:
links.append(f'Open in Telegram')
links.append(f'Open in Web')
if Config['show_bridge_link']:
token = Config['token']
links.append(f'Open in Bridge')
if links:
parts.append(' | '.join(links))
# Raw fragment — embedded in the footer, sanitized once at the output
# boundary (see the 4.4 sanitize coverage map). Not sanitized here.
result_html = '
'.join(parts) if parts else None
return result_html if result_html else None
except Exception as e:
logger.error(f"reactions_views_links_error: message_id {message.id}, error {str(e)}")
logger.error(f"reactions_views_links_error message_object: {str(message)}") # Keep original log for context
return None
def _format_poll(self, message: Message) -> Union[str, None]: #TODO: refactoring to parts.append
try:
if poll := getattr(message, "poll", None):
q = poll.question
question_str = q.text if hasattr(q, 'text') else str(q)
poll_text = f"📊 Poll: {question_str}\n"
if hasattr(poll, "options") and poll.options:
for i, option in enumerate(poll.options, 1):
opt_text = getattr(option, 'text', '')
opt_str = opt_text.text if hasattr(opt_text, 'text') else str(opt_text)
poll_text += f"{i}. {opt_str}\n"
poll_text += "\n→ Vote in Telegram 🔗\n"
return f''
return None
except Exception as e:
logger.error(f"poll_parsing_error: {str(e)}")
return ''
@staticmethod
def _format_osm_link(location) -> Union[str, None]:
"""Build an OpenStreetMap link for a location object, or None if coords are unusable."""
latitude = getattr(location, 'latitude', None) if location else None
longitude = getattr(location, 'longitude', None) if location else None
if not isinstance(latitude, (int, float)) or not isinstance(longitude, (int, float)):
return None
osm_url = f"https://www.openstreetmap.org/?mlat={latitude}&mlon={longitude}#map=16/{latitude}/{longitude}"
return f'{latitude:.5f}, {longitude:.5f}'
def _format_special_media(self, message: Message) -> Union[str, None]:
"""Render an info block for media types that carry no downloadable file.
Covers giveaways, giveaway winners, checklists, contacts, locations, venues,
dice, games, invoices and UNSUPPORTED content (Kurigram 2.2.23). Each block is
gated on message.media so unrelated messages never render these. All new
Message attributes are accessed via getattr only (older objects/mocks do not
define them) and ALL user-controlled strings go through html.escape.
"""
try:
media = getattr(message, 'media', None)
block = None
if media == MessageMediaType.GIVEAWAY and (giveaway := getattr(message, 'giveaway', None)):
quantity = getattr(giveaway, 'quantity', None)
months = getattr(giveaway, 'months', None)
stars = getattr(giveaway, 'stars', None)
until_date = getattr(giveaway, 'until_date', None)
description = getattr(giveaway, 'description', None)
block = f"🎁 Giveaway: {quantity} prize(s)"
if months: block += f" × {months} months Premium"
elif stars: block += f" × {stars} Stars"
if until_date is not None and hasattr(until_date, 'strftime'):
block += f" — until {until_date.strftime('%d/%m/%Y')}"
if isinstance(description, str) and description.strip():
block += f"
{html.escape(description.strip())}"
elif media == MessageMediaType.GIVEAWAY_WINNERS and (winners := getattr(message, 'giveaway_winners', None)):
winner_count = getattr(winners, 'winner_count', None)
quantity = getattr(winners, 'quantity', None)
prize_description = getattr(winners, 'prize_description', None)
block = f"🏆 Giveaway winners: {winner_count} of {quantity}"
if isinstance(prize_description, str) and prize_description.strip():
block += f"
{html.escape(prize_description.strip())}"
elif media == MessageMediaType.CHECKLIST and (checklist := getattr(message, 'checklist', None)):
title = getattr(checklist, 'title', None)
title_str = title if isinstance(title, str) else ''
lines = [f"📝 {html.escape(title_str)}" if title_str else "📝 Checklist"]
for task in (getattr(checklist, 'tasks', None) or []):
completed = bool(getattr(task, 'completed_by', None) or getattr(task, 'completion_date', None))
mark = "☑" if completed else "☐"
task_text = getattr(task, 'text', '')
task_str = task_text if isinstance(task_text, str) else str(task_text)
lines.append(f"{mark} {html.escape(task_str)}")
block = '
'.join(lines)
elif media == MessageMediaType.CONTACT and (contact := getattr(message, 'contact', None)):
first_name = getattr(contact, 'first_name', None) or ''
last_name = getattr(contact, 'last_name', None) or ''
phone_number = getattr(contact, 'phone_number', None) or ''
full_name = ' '.join(part for part in [str(first_name), str(last_name)] if part)
block = f"👤 {html.escape(full_name)}"
if phone_number:
block += f" — {html.escape(str(phone_number))}"
elif media == MessageMediaType.LOCATION and (location := getattr(message, 'location', None)):
osm_link = self._format_osm_link(location)
block = f"📍 Location: {osm_link}" if osm_link else "📍 Location"
elif media == MessageMediaType.VENUE and (venue := getattr(message, 'venue', None)):
venue_title = getattr(venue, 'title', None) or ''
venue_address = getattr(venue, 'address', None) or ''
venue_label = ', '.join(part for part in [str(venue_title), str(venue_address)] if part)
block = f"📍 {html.escape(venue_label)}" if venue_label else "📍 Venue"
if osm_link := self._format_osm_link(getattr(venue, 'location', None)):
block += f" — {osm_link}"
elif media == MessageMediaType.DICE and (dice := getattr(message, 'dice', None)):
dice_emoji = getattr(dice, 'emoji', None) or '🎲'
dice_value = getattr(dice, 'value', None)
block = f"🎲 {html.escape(str(dice_emoji))}: {dice_value}"
elif media == MessageMediaType.GAME:
game_title = getattr(getattr(message, 'game', None), 'title', None)
if isinstance(game_title, str) and game_title.strip():
block = f"🎮 Game: {html.escape(game_title.strip())}"
else:
block = "🎮 Game"
elif media == MessageMediaType.INVOICE:
block = "🧾 Invoice"
elif media == MessageMediaType.UNSUPPORTED:
block = "⚠️ This post contains content not supported by the bridge — open it in Telegram."
if block is None:
return None
return f''
except Exception as e:
logger.error(f"special_media_parsing_error: message_id {getattr(message, 'id', 'unknown')}, error {str(e)}")
return None
def _get_file_unique_id(self, message: Message) -> Union[str, None]:
try:
media_mapping = {
MessageMediaType.PHOTO: lambda m: m.photo.file_unique_id,
MessageMediaType.VIDEO: lambda m: m.video.file_unique_id,
MessageMediaType.DOCUMENT: lambda m: m.document.file_unique_id,
MessageMediaType.AUDIO: lambda m: m.audio.file_unique_id,
MessageMediaType.VOICE: lambda m: m.voice.file_unique_id,
MessageMediaType.VIDEO_NOTE: lambda m: m.video_note.file_unique_id,
MessageMediaType.ANIMATION: lambda m: m.animation.file_unique_id,
MessageMediaType.STICKER: lambda m: m.sticker.file_unique_id,
MessageMediaType.WEB_PAGE: lambda m: m.web_page.photo.file_unique_id if m.web_page and m.web_page.photo else None,
# New media types (Kurigram 2.2.23): getattr-only access, the
# attributes do not exist on older Message objects/mocks.
MessageMediaType.LIVE_PHOTO: lambda m: getattr(getattr(m, 'live_photo', None), 'file_unique_id', None),
MessageMediaType.STORY: lambda m: getattr(_story_media_object(m)[0], 'file_unique_id', None),
MessageMediaType.POLL: lambda m: getattr(_poll_media_object(m)[0], 'file_unique_id', None),
}
if message.media in media_mapping:
return media_mapping[message.media](message)
return None
except Exception as e:
logger.error(f"file_id_extraction_error: media_type {message.media}, error {str(e)}")
return None
async def _flush_pending_media_ids(self) -> None:
"""Persist media file-id records collected during rendering with ONE bulk upsert.
Called by the caller (get_post / rss_generator) after rendering completes.
Runs the blocking SQLite write in a thread. No-op when nothing was collected.
"""
entries = self._pending_media_ids
if not entries:
return
try:
await asyncio.to_thread(upsert_media_file_ids_bulk_sync, DB_PATH, entries)
logger.debug(f"persist_media_file_ids_bulk: upserted {len(entries)} records")
except Exception as e:
logger.error(f"file_id_bulk_save_error: error bulk-upserting {len(entries)} records, error {str(e)}")
finally:
# Clear regardless of outcome so a retry does not double-persist a stale batch.
self._pending_media_ids = []
def _save_media_file_ids(self, message: Message) -> None:
"""Collect a media file-id record for later bulk persistence.
IMPORTANT (4.2): this runs inside the render thread, so it must NOT touch
asyncio or the DB. It only appends to self._pending_media_ids; the caller
flushes the batch via _flush_pending_media_ids() after rendering.
"""
try:
channel_username = self.get_channel_username(message)
if not channel_username:
logger.error(f"channel_username_error: no username found for chat in message {message.id}")
return
if message.media:
# Skip large videos - they shouldn't be cached permanently
if message.video and message.video.file_size and message.video.file_size > 100 * 1024 * 1024:
return
file_unique_id = ''
new_media_obj = None # selected object among the Kurigram 2.2.23 media sources
if message.photo: file_unique_id = message.photo.file_unique_id
elif message.video: file_unique_id = message.video.file_unique_id
elif message.document: file_unique_id = message.document.file_unique_id
elif message.audio: file_unique_id = message.audio.file_unique_id
elif message.voice: file_unique_id = message.voice.file_unique_id
elif message.video_note: file_unique_id = message.video_note.file_unique_id
elif message.animation: file_unique_id = message.animation.file_unique_id
elif message.sticker: file_unique_id = message.sticker.file_unique_id
elif message.web_page and message.web_page.photo:
file_unique_id = message.web_page.photo.file_unique_id
# New media types (Kurigram 2.2.23): getattr-only, the attributes do
# not exist on older Message objects/mocks. paid_media is deliberately
# NOT collected — it cannot be downloaded (paid content).
elif getattr(message, 'live_photo', None):
new_media_obj = message.live_photo
elif (story_media := _story_media_object(message)[0]) is not None:
new_media_obj = story_media
elif (poll_media := _poll_media_object(message)[0]) is not None:
new_media_obj = poll_media
if new_media_obj is not None:
# The >100MB message.video guard above does not cover these
# sources (live photo, story video, poll description video) —
# apply the same "don't cache large videos" rule here.
file_size = getattr(new_media_obj, 'file_size', None)
if isinstance(file_size, int) and file_size > 100 * 1024 * 1024:
return
file_unique_id = getattr(new_media_obj, 'file_unique_id', '') or ''
if file_unique_id:
added_ts = datetime.now().timestamp()
# Thread-safe: just append; the caller persists the batch.
self._pending_media_ids.append((channel_username, message.id, file_unique_id, added_ts))
except Exception as e:
logger.error(f"file_id_collection_error: message_id {message.id}, error {str(e)}")
def get_channel_username(self, message: Message) -> Union[str, None]:
"""Extract channel username or ID from message"""
chat = message.chat if hasattr(message, 'chat') else message
if not chat: return None
# First try to get username
if hasattr(chat, 'usernames') and chat.usernames: # Check many usernames
active_usernames = [u.username for u in chat.usernames if u.active]
if active_usernames:
return active_usernames[0]
if hasattr(chat, 'username') and chat.username: return chat.username # Check single username
# Return numeric ID only if no username found
if isinstance(chat.id, int) and str(chat.id).startswith('-100'): return str(chat.id)
logger.error(f"channel_username_error: no username or valid ID found for chat")
return None