Convert delayed_delete_file to async and use asyncio.sleep.
Add pre‑semaphore cache hit to serve cached files without acquiring the download semaphore.
Set SQLite busy_timeout to reduce lock errors.
Introduce a diagnostics counter for pending _persist_media_file_id_async tasks.
Refactor flag extraction to accept pre‑generated HTML and compute html body once.
Batch reply enrichment in RSS generator to minimize API calls.
Store cached messages directly in tg_cache and add fallback for legacy double‑pickle format.
BREAKING CHANGE: delayed_delete_file is now async and must be awaited.
- Use unique temporary file paths with UUID to avoid race conditions during concurrent downloads.
- Perform atomic rename of the temp file to the final cache location and handle existing concurrent downloads.
- Clean up zero‑size and stale temporary files, including new “.tmp.<hex>” pattern.
- Extend cleanup logic to detect and remove race‑condition temp files.
- Validate and convert environment variables (TG_API_ID, TG_PROXY_PORT, API_PORT) with clear error messages and proper exit handling.
- Flush prints and replace `os._exit` with `sys.exit` for graceful termination.
- Fix URL regex in `PostParser` and guard against missing channel usernames when generating media URLs.
- Deep‑copy message lists in RSS generator to prevent mutation across calls.
- Propagate `FloodWait` exceptions to be handled by the API server instead of retrying internally.
- Enhance `TelegramClient` disconnect handling with a brief pause, shutdown check, and reconnection reset.
- Refine auth retry logic to check for actual `KeyError` instances.
Added a guard in `api_server.download_media_file` to detect `None` or empty messages and return a 404 error, preventing downstream failures.
Enhanced `PostParser._extract_reactions` to handle paid reactions, custom emojis, and unknown types, aggregating counts correctly. Updated `_extract_flags` to skip paid and custom emoji reactions, ensuring flag detection works reliably.
Use the original `channel` argument in the error log instead of
`prepared_channel_id` to prevent an UnboundLocalError when an
exception is raised during post parsing.
Replace string comparisons with the MessageMediaType.POLL enum and add the
necessary import. This ensures poll messages are correctly identified and
skipped during media processing.
Update poll handling to extract the `text` attribute from question and option objects when present, falling back to string conversion otherwise. This ensures proper rendering of poll content from Telegram objects that expose a `text` field.
Switch persistence of media file identifiers from a JSON file to a
SQLite database. Introduce DB_PATH, init_db_sync, upsert, update, and
removal functions. Remove json-repair dependency and related locking
logic. Update api_server and post_parser to use the new database
helpers.
BREAKING CHANGE: media_file_ids.json is no longer used; existing
data must be migrated to the new SQLite database.
Add monotonic timing instrumentation around media download, semaphore
wait, HTML sanitization, and media file persistence. Log warnings when
operations exceed defined thresholds and provide diagnostic info for
task queue size. This aids performance monitoring without altering
behaviour.
The changes ensure that when `show_caption_above` is true, text content is rendered before media, and when false, media is rendered before text. This aligns the actual rendering order with the semantic meaning of the flag, fixing a bug where content ordering did not match user expectations.
Add support for Telegram's show_caption_above_media message attribute to conditionally order caption and media content in HTML output. When enabled, media is rendered before the text caption instead of the default text-before-media order.
vvzvlad