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1101 lines
40 KiB
Python
1101 lines
40 KiB
Python
from __future__ import annotations
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import asyncio
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import re
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import shutil
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import sys
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import time
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import threading
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from pathlib import Path
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from typing import Any, Dict, Optional, Sequence, Tuple
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from urllib.parse import urlparse
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from ProviderCore.base import Provider, SearchResult
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_TELEGRAM_DEFAULT_TIMESTAMP_STEM_RE = re.compile(
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r"^(?P<prefix>photo|video|document|audio|voice|animation)_(?P<date>\d{4}-\d{2}-\d{2})_(?P<time>\d{2}-\d{2}-\d{2})(?: \(\d+\))?$",
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flags=re.IGNORECASE,
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)
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def _unique_path(path: Path) -> Path:
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try:
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if not path.exists():
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return path
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except Exception:
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return path
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stem = path.stem
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suffix = path.suffix
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parent = path.parent
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for i in range(1, 10_000):
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candidate = parent / f"{stem} ({i}){suffix}"
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try:
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if not candidate.exists():
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return candidate
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except Exception:
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return candidate
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return parent / f"{stem} (copy){suffix}"
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def _maybe_strip_telegram_timestamped_default_filename(*, downloaded_path: Path) -> Path:
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"""Normalize Telethon's default timestamped names.
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Examples:
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- photo_2025-12-27_02-58-09.jpg -> photo.jpg
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"""
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try:
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stem = downloaded_path.stem
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suffix = downloaded_path.suffix
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except Exception:
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return downloaded_path
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if not suffix:
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return downloaded_path
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m = _TELEGRAM_DEFAULT_TIMESTAMP_STEM_RE.fullmatch(str(stem))
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if not m:
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return downloaded_path
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prefix = str(m.group("prefix") or "").strip().lower()
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if not prefix:
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return downloaded_path
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new_candidate = downloaded_path.with_name(f"{prefix}{suffix}")
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if new_candidate == downloaded_path:
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return downloaded_path
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new_path = _unique_path(new_candidate)
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try:
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if downloaded_path.exists():
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try:
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downloaded_path.rename(new_path)
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return new_path
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except Exception:
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shutil.move(str(downloaded_path), str(new_path))
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return new_path
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except Exception:
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return downloaded_path
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return downloaded_path
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def _looks_like_telegram_message_url(url: str) -> bool:
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try:
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parsed = urlparse(str(url))
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except Exception:
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return False
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host = (parsed.hostname or "").lower().strip()
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if host in {"t.me", "telegram.me"}:
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return True
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if host.endswith(".t.me"):
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return True
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return False
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def _parse_telegram_message_url(url: str) -> Tuple[str, int]:
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"""Parse a Telegram message URL into (entity, message_id).
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Supported:
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- https://t.me/<username>/<msg_id>
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- https://t.me/s/<username>/<msg_id>
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- https://t.me/c/<internal_channel_id>/<msg_id>
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"""
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parsed = urlparse(str(url))
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path = (parsed.path or "").strip("/")
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if not path:
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raise ValueError(f"Invalid Telegram URL: {url}")
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parts = [p for p in path.split("/") if p]
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if not parts:
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raise ValueError(f"Invalid Telegram URL: {url}")
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# Strip preview prefix
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if parts and parts[0].lower() == "s":
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parts = parts[1:]
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if len(parts) < 2:
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raise ValueError(f"Invalid Telegram URL (expected /<chat>/<msg>): {url}")
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chat = parts[0]
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msg_raw = parts[1]
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# t.me/c/<id>/<msg>
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if chat.lower() == "c":
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if len(parts) < 3:
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raise ValueError(f"Invalid Telegram /c/ URL: {url}")
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chat = f"c:{parts[1]}"
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msg_raw = parts[2]
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m = re.fullmatch(r"\d+", str(msg_raw).strip())
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if not m:
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raise ValueError(f"Invalid Telegram message id in URL: {url}")
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return str(chat), int(msg_raw)
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class Telegram(Provider):
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"""Telegram provider using Telethon.
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Config:
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[provider=telegram]
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app_id=
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api_hash=
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"""
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def __init__(self, config: Optional[Dict[str, Any]] = None):
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super().__init__(config)
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telegram_conf = (
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self.config.get("provider", {}).get("telegram", {})
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if isinstance(self.config, dict)
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else {}
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)
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self._app_id = telegram_conf.get("app_id")
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self._api_hash = telegram_conf.get("api_hash")
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self._bot_token = telegram_conf.get("bot_token")
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self._last_login_error: Optional[str] = None
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# Telethon downloads are chunked; larger parts mean fewer round-trips.
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# Telethon typically expects 4..1024 KB and divisible by 4.
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self._part_size_kb = telegram_conf.get("part_size_kb")
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if self._part_size_kb is None:
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self._part_size_kb = telegram_conf.get("chunk_kb")
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if self._part_size_kb is None:
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self._part_size_kb = telegram_conf.get("download_part_kb")
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def _has_running_event_loop(self) -> bool:
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try:
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asyncio.get_running_loop()
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return True
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except RuntimeError:
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return False
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except Exception:
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return False
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def _run_async_blocking(self, coro):
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"""Run an awaitable to completion using a fresh event loop.
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If an event loop is already running in this thread (common in REPL/TUI),
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runs the coroutine in a worker thread with its own loop.
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"""
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result: Dict[str, Any] = {}
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err: Dict[str, Any] = {}
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def _runner() -> None:
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loop = asyncio.new_event_loop()
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try:
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asyncio.set_event_loop(loop)
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result["value"] = loop.run_until_complete(coro)
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except BaseException as exc:
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# Ensure we don't leave Telethon tasks pending when the user hits Ctrl+C.
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err["error"] = exc
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try:
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try:
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pending = asyncio.all_tasks(loop) # py3.8+
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except TypeError:
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pending = asyncio.all_tasks() # type: ignore
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pending = [t for t in pending if t is not None and not t.done()]
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for t in pending:
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try:
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t.cancel()
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except Exception:
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pass
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if pending:
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loop.run_until_complete(asyncio.gather(*pending, return_exceptions=True))
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try:
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loop.run_until_complete(loop.shutdown_asyncgens())
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except Exception:
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pass
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except Exception:
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pass
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finally:
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try:
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loop.close()
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except Exception:
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pass
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if self._has_running_event_loop():
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th = threading.Thread(target=_runner, daemon=True)
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th.start()
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th.join()
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else:
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_runner()
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if "error" in err:
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raise err["error"]
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return result.get("value")
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def _stdin_is_interactive(self) -> bool:
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"""Best-effort check for whether we can safely prompt the user.
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Some environments (e.g. prompt_toolkit) may wrap `sys.stdin` such that
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`sys.stdin.isatty()` is False even though interactive prompting works.
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"""
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try:
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streams = [sys.stdin, getattr(sys, "__stdin__", None)]
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for stream in streams:
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if stream is None:
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continue
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isatty = getattr(stream, "isatty", None)
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if callable(isatty) and bool(isatty()):
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return True
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except Exception:
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return False
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return False
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def _legacy_session_base_path(self) -> Path:
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# Older versions stored sessions under Log/medeia_macina.
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root = Path(__file__).resolve().parents[1]
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return root / "Log" / "medeia_macina" / "telegram"
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def _migrate_legacy_session_if_needed(self) -> None:
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"""If a legacy Telethon session exists, copy it to the new root location."""
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try:
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new_base = self._session_base_path()
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new_session = Path(str(new_base) + ".session")
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if new_session.is_file():
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return
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legacy_base = self._legacy_session_base_path()
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legacy_session = Path(str(legacy_base) + ".session")
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if not legacy_session.is_file():
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return
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for suffix in (".session", ".session-journal", ".session-wal", ".session-shm"):
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src = Path(str(legacy_base) + suffix)
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dst = Path(str(new_base) + suffix)
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try:
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if src.is_file() and not dst.exists():
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shutil.copy2(str(src), str(dst))
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except Exception:
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continue
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except Exception:
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return
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def _session_file_path(self) -> Path:
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self._migrate_legacy_session_if_needed()
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base = self._session_base_path()
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return Path(str(base) + ".session")
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def _has_session(self) -> bool:
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self._migrate_legacy_session_if_needed()
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try:
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return self._session_file_path().is_file()
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except Exception:
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return False
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def _session_is_authorized(self) -> bool:
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"""Return True if the current session file represents an authorized login.
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This must never prompt.
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"""
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self._migrate_legacy_session_if_needed()
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if not self._has_session():
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return False
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try:
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from telethon import TelegramClient
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except Exception:
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return False
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try:
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app_id, api_hash = self._credentials()
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except Exception:
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return False
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session_base = self._session_base_path()
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async def _check_async() -> bool:
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client = TelegramClient(str(session_base), app_id, api_hash)
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try:
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await client.connect()
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return bool(await client.is_user_authorized())
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finally:
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try:
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await client.disconnect()
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except Exception:
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pass
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try:
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return bool(self._run_async_blocking(_check_async()))
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except Exception:
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return False
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def _ensure_session_interactive(self) -> bool:
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"""Best-effort interactive auth to create a Telethon session file.
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Returns True if a session exists and is authorized after the attempt.
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"""
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self._last_login_error = None
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if self._session_is_authorized():
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return True
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# Never prompt in non-interactive contexts.
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if not self._stdin_is_interactive():
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self._last_login_error = "stdin is not interactive"
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return False
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try:
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from telethon import TelegramClient
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except Exception as exc:
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self._last_login_error = f"Telethon not available: {exc}"
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return False
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try:
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app_id, api_hash = self._credentials()
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except Exception:
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return False
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try:
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sys.stderr.write("[telegram] No session found; login required.\n")
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sys.stderr.write("[telegram] Choose login method: 1) phone 2) bot token\n")
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sys.stderr.write("[telegram] Enter 1 or 2: ")
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sys.stderr.flush()
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choice = ""
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try:
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choice = str(input()).strip().lower()
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except EOFError:
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choice = ""
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use_bot = choice in {"2", "b", "bot", "token"}
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bot_token = ""
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if use_bot:
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sys.stderr.write("[telegram] Bot token: ")
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sys.stderr.flush()
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try:
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bot_token = str(input()).strip()
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except EOFError:
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bot_token = ""
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if not bot_token:
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self._last_login_error = "bot token was empty"
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return False
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self._bot_token = bot_token
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else:
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sys.stderr.write(
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"[telegram] Phone login selected (Telethon will prompt for phone + code).\n"
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)
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sys.stderr.flush()
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session_base = self._session_base_path()
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async def _auth_async() -> None:
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client = TelegramClient(str(session_base), app_id, api_hash)
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try:
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if use_bot:
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await client.start(bot_token=bot_token)
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else:
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await client.start()
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finally:
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try:
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await client.disconnect()
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except Exception:
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pass
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def _run_in_new_loop() -> None:
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loop = asyncio.new_event_loop()
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try:
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asyncio.set_event_loop(loop)
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loop.run_until_complete(_auth_async())
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finally:
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try:
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loop.close()
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except Exception:
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pass
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# If some framework is already running an event loop in this thread,
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# do the auth flow in a worker thread with its own loop.
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try:
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self._ensure_event_loop()
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main_loop = asyncio.get_event_loop()
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loop_running = bool(getattr(main_loop, "is_running", lambda: False)())
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except Exception:
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loop_running = False
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if loop_running:
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err: list[str] = []
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def _worker() -> None:
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try:
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_run_in_new_loop()
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except Exception as exc:
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err.append(str(exc))
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th = threading.Thread(target=_worker, daemon=True)
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th.start()
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th.join()
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if err:
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self._last_login_error = err[0]
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return False
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else:
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try:
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_run_in_new_loop()
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except Exception as exc:
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self._last_login_error = str(exc)
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return False
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finally:
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try:
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sys.stderr.write("\n")
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sys.stderr.flush()
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except Exception:
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pass
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ok = self._has_session()
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if not ok:
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if not self._last_login_error:
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self._last_login_error = "session was not created"
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return False
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if not self._session_is_authorized():
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if not self._last_login_error:
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self._last_login_error = "session exists but is not authorized"
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return False
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return True
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def _ensure_session_with_bot_token(self, bot_token: str) -> bool:
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"""Create a Telethon session using a bot token without prompting.
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Returns True if a session exists and is authorized after the attempt.
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"""
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self._last_login_error = None
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if self._session_is_authorized():
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return True
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bot_token = str(bot_token or "").strip()
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if not bot_token:
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return False
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try:
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from telethon import TelegramClient
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except Exception as exc:
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self._last_login_error = f"Telethon not available: {exc}"
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return False
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try:
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app_id, api_hash = self._credentials()
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except Exception as exc:
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self._last_login_error = str(exc)
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return False
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session_base = self._session_base_path()
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async def _auth_async() -> None:
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client = TelegramClient(str(session_base), app_id, api_hash)
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try:
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await client.start(bot_token=bot_token)
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finally:
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try:
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await client.disconnect()
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except Exception:
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pass
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try:
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self._run_async_blocking(_auth_async())
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except Exception as exc:
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self._last_login_error = str(exc)
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return False
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if not self._has_session():
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self._last_login_error = "bot login did not create a session"
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return False
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if not self._session_is_authorized():
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self._last_login_error = "bot session exists but is not authorized"
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return False
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return True
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def _resolve_part_size_kb(self, file_size: Optional[int]) -> int:
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# Default: bias to max throughput.
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val = self._part_size_kb
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try:
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if val not in (None, ""):
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ps = int(str(val).strip())
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else:
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ps = 1024
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except Exception:
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ps = 1024
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# Clamp to Telethon-safe range.
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if ps < 4:
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ps = 4
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if ps > 1024:
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ps = 1024
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# Must be divisible by 4.
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ps = int(ps / 4) * 4
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if ps <= 0:
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ps = 64
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# For very small files, reduce overhead a bit (still divisible by 4).
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try:
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if file_size is not None and int(file_size) > 0:
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if int(file_size) < 2 * 1024 * 1024:
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ps = min(ps, 256)
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elif int(file_size) < 10 * 1024 * 1024:
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ps = min(ps, 512)
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except Exception:
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pass
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return ps
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def validate(self) -> bool:
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"""Return True when Telegram can be used in the current context.
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Important behavior: `validate()` must be side-effect free (no prompts).
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Session creation happens on first use.
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"""
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try:
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__import__("telethon")
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except Exception:
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return False
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try:
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app_id = int(self._app_id) if self._app_id not in (None, "") else None
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except Exception:
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app_id = None
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api_hash = str(self._api_hash).strip() if self._api_hash not in (None, "") else ""
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if not bool(app_id and api_hash):
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return False
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# Consider the provider "available" when configured.
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# Authentication/session creation is handled on first use.
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return True
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|
|
|
def ensure_session(self, *, prompt: bool = False) -> bool:
|
|
"""Ensure a Telethon session exists.
|
|
|
|
- If an authorized session already exists: returns True.
|
|
- If a bot token is configured: tries to create a session without prompting.
|
|
- If `prompt=True`: attempts interactive login.
|
|
"""
|
|
# Treat "session exists" as insufficient; we need authorization.
|
|
if self._session_is_authorized():
|
|
return True
|
|
bot_token = str(self._bot_token or "").strip()
|
|
if bot_token:
|
|
return bool(
|
|
self._ensure_session_with_bot_token(bot_token) and self._session_is_authorized()
|
|
)
|
|
if prompt:
|
|
return bool(self._ensure_session_interactive() and self._session_is_authorized())
|
|
return False
|
|
|
|
def list_chats(self, *, limit: int = 200) -> list[Dict[str, Any]]:
|
|
"""List dialogs/chats available to the authenticated account.
|
|
|
|
Returns a list of dicts with keys: id, title, username, type.
|
|
"""
|
|
# Do not prompt implicitly.
|
|
if not self.ensure_session(prompt=False):
|
|
return []
|
|
|
|
try:
|
|
from telethon import TelegramClient
|
|
from telethon.tl.types import Channel, Chat, User
|
|
except Exception:
|
|
return []
|
|
|
|
try:
|
|
app_id, api_hash = self._credentials()
|
|
except Exception:
|
|
return []
|
|
|
|
session_base = self._session_base_path()
|
|
|
|
async def _list_async() -> list[Dict[str, Any]]:
|
|
client = TelegramClient(str(session_base), app_id, api_hash)
|
|
rows: list[Dict[str, Any]] = []
|
|
try:
|
|
await client.connect()
|
|
if not bool(await client.is_user_authorized()):
|
|
return []
|
|
|
|
try:
|
|
dialogs = await client.get_dialogs(limit=int(limit))
|
|
except TypeError:
|
|
dialogs = await client.get_dialogs()
|
|
|
|
for d in dialogs or []:
|
|
entity = getattr(d, "entity", None)
|
|
title = ""
|
|
username = ""
|
|
chat_id = None
|
|
kind = ""
|
|
try:
|
|
title = str(getattr(d, "name", "") or "").strip()
|
|
except Exception:
|
|
title = ""
|
|
|
|
try:
|
|
if entity is not None:
|
|
maybe_id = getattr(entity, "id", None)
|
|
if maybe_id is not None:
|
|
chat_id = int(maybe_id)
|
|
maybe_username = getattr(entity, "username", None)
|
|
if isinstance(maybe_username, str):
|
|
username = maybe_username.strip()
|
|
except Exception:
|
|
pass
|
|
|
|
try:
|
|
if not title and entity is not None:
|
|
for attr in ("title", "first_name", "last_name"):
|
|
v = getattr(entity, attr, None)
|
|
if isinstance(v, str) and v.strip():
|
|
title = v.strip()
|
|
break
|
|
except Exception:
|
|
pass
|
|
|
|
try:
|
|
if isinstance(entity, Channel):
|
|
if bool(getattr(entity, "broadcast", False)):
|
|
kind = "channel"
|
|
elif bool(getattr(entity, "megagroup", False)):
|
|
kind = "group"
|
|
else:
|
|
kind = "channel"
|
|
elif isinstance(entity, Chat):
|
|
kind = "group"
|
|
elif isinstance(entity, User):
|
|
kind = "user"
|
|
else:
|
|
kind = (
|
|
type(entity).__name__.lower() if entity is not None else "unknown"
|
|
)
|
|
except Exception:
|
|
kind = "unknown"
|
|
|
|
rows.append({"id": chat_id, "title": title, "username": username, "type": kind})
|
|
return rows
|
|
finally:
|
|
try:
|
|
await client.disconnect()
|
|
except Exception:
|
|
pass
|
|
|
|
try:
|
|
rows = self._run_async_blocking(_list_async())
|
|
except Exception:
|
|
rows = []
|
|
|
|
# Sort for stable display.
|
|
try:
|
|
rows.sort(key=lambda r: (str(r.get("type") or ""), str(r.get("title") or "")))
|
|
except Exception:
|
|
pass
|
|
return rows
|
|
|
|
def send_files_to_chats(
|
|
self,
|
|
*,
|
|
chat_ids: Sequence[int],
|
|
usernames: Sequence[str],
|
|
files: Optional[Sequence[Dict[str, Any]]] = None,
|
|
file_paths: Optional[Sequence[str]] = None,
|
|
) -> None:
|
|
"""Send local file(s) to one or more chats.
|
|
|
|
This must never prompt. Requires an authorized session (run: .telegram -login).
|
|
Uses Rich ProgressBar for upload progress.
|
|
"""
|
|
# Never prompt implicitly.
|
|
if not self.ensure_session(prompt=False):
|
|
raise Exception("Telegram login required. Run: .telegram -login")
|
|
|
|
try:
|
|
from telethon import TelegramClient
|
|
from telethon.tl.types import DocumentAttributeFilename
|
|
except Exception as exc:
|
|
raise Exception(f"Telethon not available: {exc}")
|
|
|
|
try:
|
|
from SYS.progress import print_progress, print_final_progress
|
|
except Exception:
|
|
print_progress = None # type: ignore
|
|
print_final_progress = None # type: ignore
|
|
|
|
try:
|
|
app_id, api_hash = self._credentials()
|
|
except Exception as exc:
|
|
raise Exception(str(exc))
|
|
|
|
# Back-compat: allow callers to pass `file_paths=`.
|
|
if files is None:
|
|
files = [{"path": str(p), "title": ""} for p in (file_paths or [])]
|
|
|
|
def _sanitize_filename(text: str) -> str:
|
|
# Windows-safe plus generally safe for Telegram.
|
|
name = str(text or "").strip()
|
|
if not name:
|
|
return "file"
|
|
name = name.replace("\x00", " ")
|
|
# Strip characters illegal on Windows filenames.
|
|
name = re.sub(r'[<>:"/\\|?*]', " ", name)
|
|
# Collapse whitespace.
|
|
name = re.sub(r"\s+", " ", name).strip(" .")
|
|
if not name:
|
|
return "file"
|
|
# Keep it reasonable.
|
|
if len(name) > 120:
|
|
name = name[:120].rstrip(" .")
|
|
return name or "file"
|
|
|
|
# Normalize and validate file paths + titles.
|
|
jobs: list[Dict[str, Any]] = []
|
|
seen_paths: set[str] = set()
|
|
for f in files or []:
|
|
try:
|
|
path_text = str((f or {}).get("path") or "").strip()
|
|
except Exception:
|
|
path_text = ""
|
|
if not path_text:
|
|
continue
|
|
path_obj = Path(path_text).expanduser()
|
|
if not path_obj.exists():
|
|
raise Exception(f"File not found: {path_obj}")
|
|
key = str(path_obj).lower()
|
|
if key in seen_paths:
|
|
continue
|
|
seen_paths.add(key)
|
|
title_text = ""
|
|
try:
|
|
title_text = str((f or {}).get("title") or "").strip()
|
|
except Exception:
|
|
title_text = ""
|
|
jobs.append({"path": str(path_obj), "title": title_text})
|
|
|
|
if not jobs:
|
|
raise Exception("No files to send")
|
|
|
|
session_base = self._session_base_path()
|
|
ids = [int(x) for x in (chat_ids or []) if x is not None]
|
|
try:
|
|
ids = list(dict.fromkeys(ids))
|
|
except Exception:
|
|
pass
|
|
uns = [str(u or "").strip() for u in (usernames or []) if str(u or "").strip()]
|
|
try:
|
|
uns = list(dict.fromkeys([u.strip().lower() for u in uns if u.strip()]))
|
|
except Exception:
|
|
pass
|
|
# Prefer IDs when available; avoid sending twice when both id and username exist.
|
|
if ids:
|
|
uns = []
|
|
if not ids and not uns:
|
|
raise Exception("No chat selected")
|
|
|
|
async def _send_async() -> None:
|
|
client = TelegramClient(str(session_base), app_id, api_hash)
|
|
try:
|
|
await client.connect()
|
|
if not bool(await client.is_user_authorized()):
|
|
raise Exception("Telegram session is not authorized. Run: .telegram -login")
|
|
|
|
# Resolve entities: prefer IDs. Only fall back to usernames when IDs are absent.
|
|
entities: list[Any] = []
|
|
if ids:
|
|
for cid in ids:
|
|
try:
|
|
e = await client.get_input_entity(int(cid))
|
|
entities.append(e)
|
|
except Exception:
|
|
continue
|
|
else:
|
|
seen_u: set[str] = set()
|
|
for u in uns:
|
|
key = str(u).strip().lower()
|
|
if not key or key in seen_u:
|
|
continue
|
|
seen_u.add(key)
|
|
try:
|
|
e = await client.get_input_entity(str(u))
|
|
entities.append(e)
|
|
except Exception:
|
|
continue
|
|
|
|
if not entities:
|
|
raise Exception("Unable to resolve selected chat(s)")
|
|
|
|
for entity in entities:
|
|
for job in jobs:
|
|
try:
|
|
p = str(job.get("path") or "").strip()
|
|
if not p:
|
|
continue
|
|
path_obj = Path(p)
|
|
file_size = None
|
|
try:
|
|
file_size = int(path_obj.stat().st_size)
|
|
except Exception:
|
|
file_size = None
|
|
ps = self._resolve_part_size_kb(file_size)
|
|
|
|
title_raw = str(job.get("title") or "").strip()
|
|
fallback = path_obj.stem
|
|
base = (
|
|
_sanitize_filename(title_raw)
|
|
if title_raw
|
|
else _sanitize_filename(fallback)
|
|
)
|
|
ext = path_obj.suffix
|
|
send_name = f"{base}{ext}" if ext else base
|
|
|
|
attributes = [DocumentAttributeFilename(send_name)]
|
|
|
|
def _progress(sent: int, total: int) -> None:
|
|
if print_progress is None:
|
|
return
|
|
try:
|
|
print_progress(send_name, int(sent or 0), int(total or 0))
|
|
except Exception:
|
|
return
|
|
|
|
# Start the progress UI immediately (even if Telethon delays the first callback).
|
|
if print_progress is not None:
|
|
try:
|
|
print_progress(send_name, 0, int(file_size or 0))
|
|
except Exception:
|
|
pass
|
|
|
|
try:
|
|
await client.send_file(
|
|
entity,
|
|
str(path_obj),
|
|
part_size_kb=ps,
|
|
progress_callback=_progress,
|
|
attributes=attributes,
|
|
)
|
|
finally:
|
|
if print_final_progress is not None:
|
|
try:
|
|
print_final_progress(send_name, int(file_size or 0), 0.0)
|
|
except Exception:
|
|
pass
|
|
except Exception as exc:
|
|
raise Exception(str(exc))
|
|
finally:
|
|
try:
|
|
await client.disconnect()
|
|
except Exception:
|
|
pass
|
|
|
|
self._run_async_blocking(_send_async())
|
|
|
|
def _session_base_path(self) -> Path:
|
|
# Store session alongside cookies.txt at repo root.
|
|
# Telethon uses this as base name and writes "<base>.session".
|
|
root = Path(__file__).resolve().parents[1]
|
|
return root / "telegram"
|
|
|
|
def _credentials(self) -> Tuple[int, str]:
|
|
raw_app_id = self._app_id
|
|
if raw_app_id in (None, ""):
|
|
raise Exception("Telegram app_id missing")
|
|
try:
|
|
app_id = int(str(raw_app_id).strip())
|
|
except Exception:
|
|
raise Exception("Telegram app_id invalid")
|
|
api_hash = str(self._api_hash or "").strip()
|
|
if not api_hash:
|
|
raise Exception("Telegram api_hash missing")
|
|
return app_id, api_hash
|
|
|
|
def _ensure_event_loop(self) -> None:
|
|
"""Telethon sync wrapper requires an event loop to exist in this thread."""
|
|
try:
|
|
asyncio.get_event_loop()
|
|
except RuntimeError:
|
|
loop = asyncio.new_event_loop()
|
|
asyncio.set_event_loop(loop)
|
|
|
|
def _download_message_media_sync(
|
|
self, *, url: str, output_dir: Path
|
|
) -> Tuple[Path, Dict[str, Any]]:
|
|
# Ensure we have an authorized session before attempting API calls.
|
|
# Never prompt during downloads.
|
|
if not self.ensure_session(prompt=False):
|
|
raise Exception("Telegram login required. Run: .telegram -login")
|
|
|
|
try:
|
|
from telethon import TelegramClient, errors
|
|
from telethon.tl.types import PeerChannel
|
|
except Exception as exc:
|
|
raise Exception(f"Telethon not available: {exc}")
|
|
|
|
try:
|
|
output_dir.mkdir(parents=True, exist_ok=True)
|
|
except Exception:
|
|
pass
|
|
|
|
app_id, api_hash = self._credentials()
|
|
session_base = self._session_base_path()
|
|
chat, message_id = _parse_telegram_message_url(url)
|
|
|
|
async def _download_async() -> Tuple[Path, Dict[str, Any]]:
|
|
client = TelegramClient(str(session_base), app_id, api_hash)
|
|
try:
|
|
await client.connect()
|
|
if not bool(await client.is_user_authorized()):
|
|
raise Exception("Telegram session is not authorized. Run: .telegram -login")
|
|
|
|
if chat.startswith("c:"):
|
|
channel_id = int(chat.split(":", 1)[1])
|
|
entity = PeerChannel(channel_id)
|
|
else:
|
|
entity = chat
|
|
if isinstance(entity, str) and entity and not entity.startswith("@"):
|
|
entity = "@" + entity
|
|
|
|
messages = await client.get_messages(entity, ids=[message_id])
|
|
message = None
|
|
if isinstance(messages, (list, tuple)):
|
|
message = messages[0] if messages else None
|
|
else:
|
|
try:
|
|
message = messages[0] # type: ignore[index]
|
|
except Exception:
|
|
message = None
|
|
if not message:
|
|
raise Exception("Telegram message not found")
|
|
if not getattr(message, "media", None):
|
|
raise Exception("Telegram message has no media")
|
|
|
|
chat_title = ""
|
|
chat_username = ""
|
|
chat_id = None
|
|
try:
|
|
chat_obj = getattr(message, "chat", None)
|
|
if chat_obj is not None:
|
|
maybe_title = getattr(chat_obj, "title", None)
|
|
maybe_username = getattr(chat_obj, "username", None)
|
|
maybe_id = getattr(chat_obj, "id", None)
|
|
if isinstance(maybe_title, str):
|
|
chat_title = maybe_title.strip()
|
|
if isinstance(maybe_username, str):
|
|
chat_username = maybe_username.strip()
|
|
if maybe_id is not None:
|
|
chat_id = int(maybe_id)
|
|
except Exception:
|
|
pass
|
|
|
|
caption = ""
|
|
try:
|
|
maybe_caption = getattr(message, "message", None)
|
|
if isinstance(maybe_caption, str):
|
|
caption = maybe_caption.strip()
|
|
except Exception:
|
|
pass
|
|
|
|
msg_id = None
|
|
msg_date = None
|
|
try:
|
|
msg_id = int(getattr(message, "id", 0) or 0)
|
|
except Exception:
|
|
msg_id = None
|
|
try:
|
|
msg_date = getattr(message, "date", None)
|
|
except Exception:
|
|
msg_date = None
|
|
|
|
file_name = ""
|
|
file_mime = ""
|
|
file_size = None
|
|
try:
|
|
file_obj = getattr(message, "file", None)
|
|
maybe_name = getattr(file_obj, "name", None)
|
|
maybe_mime = getattr(file_obj, "mime_type", None)
|
|
maybe_size = getattr(file_obj, "size", None)
|
|
if isinstance(maybe_name, str):
|
|
file_name = maybe_name.strip()
|
|
if isinstance(maybe_mime, str):
|
|
file_mime = maybe_mime.strip()
|
|
if maybe_size is not None:
|
|
file_size = int(maybe_size)
|
|
except Exception:
|
|
pass
|
|
|
|
from models import ProgressBar
|
|
|
|
progress_bar = ProgressBar()
|
|
last_print = {"t": 0.0}
|
|
|
|
def _progress(current: int, total: int) -> None:
|
|
now = time.monotonic()
|
|
if now - float(last_print.get("t", 0.0)) < 0.25 and current < total:
|
|
return
|
|
last_print["t"] = now
|
|
progress_bar.update(
|
|
downloaded=int(current), total=int(total), label="telegram", file=sys.stderr
|
|
)
|
|
|
|
part_kb = self._resolve_part_size_kb(file_size)
|
|
try:
|
|
downloaded = await client.download_media(
|
|
message,
|
|
file=str(output_dir),
|
|
progress_callback=_progress,
|
|
part_size_kb=part_kb,
|
|
)
|
|
except TypeError:
|
|
downloaded = await client.download_media(
|
|
message, file=str(output_dir), progress_callback=_progress
|
|
)
|
|
progress_bar.finish()
|
|
if not downloaded:
|
|
raise Exception("Telegram download returned no file")
|
|
downloaded_path = Path(str(downloaded))
|
|
|
|
# Telethon's default media filenames include timestamps (e.g. photo_YYYY-MM-DD_HH-MM-SS.jpg).
|
|
# Strip those timestamps ONLY when Telegram didn't provide an explicit filename.
|
|
if not file_name:
|
|
downloaded_path = _maybe_strip_telegram_timestamped_default_filename(
|
|
downloaded_path=downloaded_path,
|
|
)
|
|
|
|
date_iso = None
|
|
try:
|
|
if msg_date is not None and hasattr(msg_date, "isoformat"):
|
|
date_iso = msg_date.isoformat() # type: ignore[union-attr]
|
|
except Exception:
|
|
date_iso = None
|
|
|
|
info: Dict[str, Any] = {
|
|
"provider": "telegram",
|
|
"source_url": url,
|
|
"chat": {
|
|
"key": chat,
|
|
"title": chat_title,
|
|
"username": chat_username,
|
|
"id": chat_id,
|
|
},
|
|
"message": {
|
|
"id": msg_id,
|
|
"date": date_iso,
|
|
"caption": caption,
|
|
},
|
|
"file": {
|
|
"name": file_name,
|
|
"mime_type": file_mime,
|
|
"size": file_size,
|
|
"downloaded_path": str(downloaded_path),
|
|
},
|
|
}
|
|
return downloaded_path, info
|
|
except errors.RPCError as exc:
|
|
raise Exception(f"Telegram RPC error: {exc}")
|
|
finally:
|
|
try:
|
|
await client.disconnect()
|
|
except Exception:
|
|
pass
|
|
|
|
return self._run_async_blocking(_download_async())
|
|
|
|
def download_url(self, url: str, output_dir: Path) -> Tuple[Path, Dict[str, Any]]:
|
|
"""Download a Telegram message URL and return (path, metadata)."""
|
|
if not _looks_like_telegram_message_url(url):
|
|
raise ValueError("Not a Telegram URL")
|
|
return self._download_message_media_sync(url=url, output_dir=output_dir)
|
|
|
|
def download(self, result: SearchResult, output_dir: Path) -> Optional[Path]:
|
|
url = str(getattr(result, "path", "") or "")
|
|
if not url:
|
|
return None
|
|
if not _looks_like_telegram_message_url(url):
|
|
return None
|
|
|
|
path, _info = self._download_message_media_sync(url=url, output_dir=output_dir)
|
|
return path
|