When TELEGRAM_WEBHOOK_URL was set but TELEGRAM_WEBHOOK_SECRET was not,
python-telegram-bot received secret_token=None and the webhook endpoint
accepted any HTTP POST. Anyone who could reach the listener could inject
forged updates — spoofed user IDs, spoofed chat IDs, attacker-controlled
message text — and trigger handlers as if Telegram delivered them.
The fix refuses to start the adapter in webhook mode without the secret.
Polling mode (default, no webhook URL) is unaffected — polling is
authenticated by the bot token directly.
BREAKING CHANGE for webhook-mode deployments that never set
TELEGRAM_WEBHOOK_SECRET. The error message explains remediation:
export TELEGRAM_WEBHOOK_SECRET="$(openssl rand -hex 32)"
and instructs registering it with Telegram via setWebhook's secret_token
parameter. Release notes must call this out.
Reported in GHSA-3vpc-7q5r-276h by @bupt-Yy-young. Hardening — not CVE
per SECURITY.md §3 "Public Exposure: Deploying the gateway to the
public internet without external authentication or network protection"
covers the historical default, but shipping a fail-open webhook as the
default was the wrong choice and the guard aligns us with the SECURITY.md
threat model.
When require_mention is enabled, slash commands no longer bypass
mention checks. Bare /command without @mention is filtered in groups,
while /command@botname (bot menu) and @botname /command still pass.
Commands still pass unconditionally when require_mention is disabled,
preserving backward compatibility.
Closes#6033
Sweep ~74 redundant local imports across 21 files where the same module
was already imported at the top level. Also includes type fixes and lint
cleanups on the same branch.
The link regex in format_message used [^)]+ for the URL portion, which
stopped at the first ) character. URLs with nested parentheses (e.g.
Wikipedia links like Python_(programming_language)) were improperly parsed.
Use a better regex, which is the same the Slack adapter uses.
When createForumTopic fails with 'not a forum' in a private chat,
the error now tells the user exactly what to do: enable Topics in
the DM chat settings from the Telegram app.
Also adds a Prerequisites callout to the docs explaining this
client-side requirement before the config section.
Replaces the word-boundary regex scan with pure MessageEntity-based
detection. Telegram's server emits MENTION entities for real @username
mentions and TEXT_MENTION entities for @FirstName mentions; the text-
scanning fallback was both redundant (entities are always present for
real mentions) and broken (matched raw substrings like email addresses,
URLs, code-block contents, and forwarded literal text).
Entity-only detection:
- Closes bug #12545 ("foo@hermes_bot.example" false positive).
- Also fixes edge cases the regex fix would still miss: @handles inside
URLs and code blocks, where Telegram does not emit mention entities.
Tests rewritten to exercise realistic Telegram payloads (real mentions
carry entities; substring false positives don't).
stream_consumer._send_or_edit unconditionally passes finalize= to
adapter.edit_message(), but only DingTalk's override accepted the
kwarg. Streaming on Telegram/Discord/Slack/Matrix/Mattermost/Feishu/
WhatsApp raised TypeError the first time a segment break or final
edit fired.
The REQUIRES_EDIT_FINALIZE capability flag only gates the redundant
final edit (and the identical-text short-circuit), not the kwarg
itself — so adapters that opt out of finalize still receive the
keyword argument and must accept it.
Add *, finalize: bool = False to the 7 non-DingTalk signatures; the
body ignores the arg since those platforms treat edits as stateless
(consistent with the base class contract in base.py).
Add a parametrized signature check over every concrete adapter class
so a future override cannot silently drop the kwarg — existing tests
use MagicMock which swallows any kwarg and cannot catch this.
Fixes#12579
Follow-up on top of the helix4u #6392 cherry-pick:
- reuse one helper for actionable Docker-local file-not-found errors
across document/image/video/audio local-media send paths
- include /outputs/... alongside /output/... in the container-local
path hint
- soften the gateway startup warning so it does not imply custom
host-visible mounts are broken; the warning now targets the specific
risky pattern of emitting container-local MEDIA paths without an
explicit export mount
- add focused regressions for /outputs/... and non-document media hint
coverage
This keeps the salvage aligned with the actual MEDIA delivery problem on
current main while reducing false-positive operator messaging.
When `message.from_user` is None — which can happen for forwarded messages,
anonymous admin mode in groups, or certain Telegram client edge cases —
`_build_message_event` set `source.user_id` to None. This caused:
1. `_is_user_authorized()` to early-return False (`if not user_id: return False`)
2. The access check never compared against `TELEGRAM_ALLOWED_USERS` even when
the user actually was in the allowlist
3. The pairing flow fired and generated a code for `user_id=None`
4. The pairing approval saved an entry under the literal string key "null"
5. The user was effectively locked out because their real user_id never
matched the "null" key on subsequent messages
For DMs (`chat_type == "dm"`), Telegram guarantees `chat.id == user.id` —
they are the same numeric ID for private chats. Falling back to `chat.id`
when `from_user` is None for DMs restores the expected access-control
behavior without weakening it (group/channel chats correctly stay None).
Also adds a parallel `user_name` fallback to `chat.full_name` so the
display name still works in the same edge case.
When a Telegram /restart fires and PTB's graceful-shutdown `get_updates`
ACK call times out ("When polling for updates is restarted, updates may
be received twice" in gateway.log), the new gateway receives the same
/restart again and restarts a second time — a self-perpetuating loop.
Record the triggering update_id in `.restart_last_processed.json` when
handling /restart. On the next process, reject a /restart whose
update_id <= the recorded one as a stale redelivery. 5-minute staleness
guard so an orphaned marker can't block a legitimately new /restart.
- gateway/platforms/base.py: add `platform_update_id` to MessageEvent
- gateway/platforms/telegram.py: propagate `update.update_id` through
_build_message_event for text/command/location/media handlers
- gateway/run.py: write dedup marker in _handle_restart_command;
_is_stale_restart_redelivery checks it before processing /restart
- tests/gateway/test_restart_redelivery_dedup.py: 9 new tests covering
fresh restart, redelivery, staleness window, cross-platform,
malformed-marker resilience, and no-update_id (CLI) bypass
Only active for Telegram today (the one platform with monotonic
cross-session update ordering); other platforms return False from
_is_stale_restart_redelivery and proceed normally.
Telegram's MarkdownV2 has no table syntax — pipes get backslash-escaped
and tables render as noisy unaligned text. format_message now detects
GFM-style pipe tables (header row + delimiter row + optional body) and
wraps them in ``` fences before the existing MarkdownV2 conversion runs.
Telegram renders fenced code blocks as monospace preformatted text with
columns intact.
Tables already inside an existing code block are left alone. Plain
prose with pipes, lone '---' horizontal rules, and non-table content
are unaffected.
Closes the recurring community request to stop having to ask the agent
to re-render tables as code blocks manually.
Switch from fragile Markdown V1 to HTML parse mode with html.escape()
for exec approval messages. Add fallback to text-based approval when
the formatted send fails.
Cherry-picked from #10999 by @danieldoderlein.
Bump connect retry attempts from 3 to 8 and cap exponential backoff at
15 seconds. Old budget: 3 attempts, 1+2+4=7s total — insufficient for
cold boot on slow networks or embedded devices. New budget: 8 attempts,
1+2+4+8+15+15+15=~60s total.
Inspired by PR #5770 by @Bartok9 (re-implemented against current main
since original was 913 commits stale with conflicts).
In Telegram forum-enabled groups, the General topic does not include
message_thread_id in incoming messages (it is None). This caused:
1. Messages in General losing thread context — replies went to wrong place
2. Typing indicator failing because thread_id=1 was rejected by Telegram
Fix: synthesize thread_id="1" for forum groups when message_thread_id
is None, then handle it correctly per operation:
- send: omit message_thread_id (Telegram rejects thread_id=1 for sends)
- typing: pass thread_id=1, retry without it on "thread not found"
Also centralizes thread_id extraction into _metadata_thread_id() across
all send methods (send, send_voice, send_image, send_document, send_video,
send_animation, send_photo), replacing ~10 duplicate patterns.
Salvaged from PR #7892 by @corazzione.
Closes#7877, closes#7519.
Pass platform_env_var="TELEGRAM_PROXY" to resolve_proxy_url() in both
telegram.py (main connect) and telegram_network.py (fallback transport),
so a Telegram-specific proxy takes priority over the generic HTTPS_PROXY.
Also bridge telegram.proxy_url from config.yaml to the TELEGRAM_PROXY
env var (env var takes precedence if both are set), add OPTIONAL_ENV_VARS
entry, docs, and tests.
Composite salvage of four community PRs:
- Core approach (both call sites): #9414 by @leeyang1990
- config.yaml bridging + docs: #6530 by @WhiteWorld
- Naming convention: #9074 by @brantzh6
- Earlier proxy work: #7786 by @ten-ltw
Closes#9414, closes#9074, closes#7786, closes#6530
Co-authored-by: WhiteWorld <WhiteWorld@users.noreply.github.com>
Co-authored-by: brantzh6 <brantzh6@users.noreply.github.com>
Co-authored-by: ten-ltw <ten-ltw@users.noreply.github.com>
The command preview and description were wrapped in Markdown v1 inline
code (backticks) without escaping, causing Telegram API parse errors
when the command itself contained backticks or asterisks.
Fixes: 'Can't parse entities: can't find end of the entity'
Extract resolve_channel_prompt() shared helper into
gateway/platforms/base.py. Refactor Discord to use it.
Wire channel_prompts into Telegram (groups + forum topics),
Slack (channels), and Mattermost (channels).
Config bridging now applies to all platforms (not just Discord).
Added channel_prompts defaults to telegram/slack/mattermost
config sections.
Docs added to all four platform pages with platform-specific
examples (topic inheritance for Telegram, channel IDs for Slack,
etc.).
When HTTPS_PROXY / HTTP_PROXY / ALL_PROXY env vars are set (or macOS system proxy
is detected), pass the proxy URL explicitly via HTTPXRequest(proxy=proxy_url) instead
of relying on httpx's trust_env mechanism, which is unreliable for HTTP CONNECT
proxies (e.g. Clash / ClashMac in fake-ip mode).
Uses the shared resolve_proxy_url() from base.py (handles env vars + macOS system
proxy detection) instead of duplicating env var reading inline. Consolidates the
proxy_configured boolean into a single proxy_url = resolve_proxy_url() call that
serves as both the gate for skipping fallback-IP transport and the value passed
to HTTPXRequest.
Co-authored-by: Hermes Agent <hermes@nousresearch.com>
Salvaged from PR #8931 by MaybeRichard.
Port from nearai/ironclaw#2304: Telegram's 4096 character limit is
measured in UTF-16 code units, not Unicode codepoints. Characters
outside the Basic Multilingual Plane (emoji like 😀, CJK Extension B,
musical symbols) are surrogate pairs: 1 Python char but 2 UTF-16 units.
Previously, truncate_message() used Python's len() which counts
codepoints. This could produce chunks exceeding Telegram's actual limit
when messages contain many astral-plane characters.
Changes:
- Add utf16_len() helper and _prefix_within_utf16_limit() for
UTF-16-aware string measurement and truncation
- Add _custom_unit_to_cp() binary-search helper that maps a custom-unit
budget to the largest safe codepoint slice position
- Update truncate_message() to accept optional len_fn parameter
- Telegram adapter now passes len_fn=utf16_len when splitting messages
- Fix fallback truncation in Telegram error handler to use
_prefix_within_utf16_limit instead of codepoint slicing
- Update send_message_tool.py to use utf16_len for Telegram platform
- Add comprehensive tests: utf16_len, _prefix_within_utf16_limit,
truncate_message with len_fn (emoji splitting, content preservation,
code block handling)
- Update mock lambdas in reply_mode tests to accept **kw for len_fn
When 'hermes claw migrate' copies Telegram/Discord/Slack bot tokens from
OpenClaw while the Hermes gateway is already polling with those same tokens,
the platforms conflict (e.g. Telegram 409). Add a pre-flight check that reads
gateway_state.json via get_running_pid() + read_runtime_status(), warns the
user, and lets them cancel or continue.
Also improve the Telegram polling conflict error message to mention OpenClaw
as a common cause and give the 'hermes start' restart command.
Refs #7907
Telegram's Bot API only allows a specific set of emoji for bot reactions
(the ReactionEmoji enum). ✅ (U+2705) and ❌ (U+274C) are not in that
set, causing on_processing_complete reactions to silently fail with
REACTION_INVALID (caught at debug log level).
Replace with 👍 (U+1F44D) / 👎 (U+1F44E) which are always available in
Telegram's allowed reaction list. The 👀 (eyes) reaction used by
on_processing_start was already valid.
Based on the fix by @ppdng in PR #6685.
Fixes#6068
When extra.base_url is set in the Telegram platform config, use it as
the base URL for all Telegram API requests instead of api.telegram.org.
This allows agents to route Telegram traffic through the credential
proxy, which injects the real bot token — the VM never sees it.
Also supports extra.base_file_url for file downloads (defaults to
base_url if not set separately).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- configure Telegram HTTPXRequest pool/timeouts with env-overridable defaults\n- use separate request/get_updates request objects to reduce pool contention\n- skip fallback-IP transport when proxy is configured (or explicitly disabled)\n\nThis mitigates recurrent pool-timeout failures during polling reconnect/bootstrap (delete_webhook).
Cherry-picked from PR #6891 by SHL0MS.
When a chunk is near the 4096-char split point, wait 2.0s instead of 0.6s
since a continuation is almost certain.
Approval button clicks (Block Kit actions in Slack, CallbackQuery in
Telegram) bypass the normal message authorization flow in gateway/run.py.
Any workspace/group member who can see the approval message could click
Approve to authorize dangerous commands.
Read SLACK_ALLOWED_USERS / TELEGRAM_ALLOWED_USERS env vars directly in
the approval handlers. When an allowlist is configured and the clicking
user is not in it, the click is silently ignored (Slack) or answered
with an error (Telegram). Wildcard '*' permits all users. When no
allowlist is configured, behavior is unchanged (open access).
Based on the idea from PR #6735 by maymuneth, reimplemented to use the
existing env-var-based authorization system rather than a nonexistent
_allowed_user_ids adapter attribute.
Telegram's set_message_reaction replaces all reactions in one call,
so _remove_reaction was never called (unlike Discord's additive model).
Default reactions to disabled — users opt in via telegram.reactions: true.
Mirror the Discord reaction pattern for Telegram:
- 👀 (eyes) when message processing begins
- ✅ (check) on successful completion
- ❌ (cross) on failure
Controlled via TELEGRAM_REACTIONS env var or telegram.reactions
in config.yaml (enabled by default, like Discord).
Uses python-telegram-bot's Bot.set_message_reaction() API.
Failures are caught and logged at debug level so they never
break message processing.
Move _merge_caption helper from TelegramAdapter to BasePlatformAdapter
so all adapters inherit it. Fix the same substring-containment bug in:
- gateway/platforms/base.py (photo burst merging)
- gateway/run.py (priority photo follow-up merging)
- gateway/platforms/feishu.py (media batch merging)
The original fix only covered telegram.py. The same bug existed in base.py
and run.py (pure substring check) and feishu.py (list membership without
whitespace normalization).
Captions in photo bursts and media group albums were silently dropped when
a shorter caption happened to be a substring of an existing one (e.g.
"Meeting" lost inside "Meeting agenda"). Extract a shared _merge_caption
static helper that splits on "\n\n" and uses exact match with whitespace
normalisation, then use it in both _enqueue_photo_event and
_queue_media_group_event.
Adds 13 unit tests covering the fixed bug scenarios.
Cherry-picked from PR #2671 by Dilee.
Slack:
- Add Block Kit interactive buttons for command approval (Allow Once,
Allow Session, Always Allow, Deny) via send_exec_approval()
- Register @app.action handlers for each approval button
- Add _fetch_thread_context() — fetches thread history via
conversations.replies when bot is first @mentioned mid-thread
- Fix _has_active_session_for_thread() to use build_session_key()
instead of manual key construction (fixes session key mismatch bug
where thread_sessions_per_user flag was ignored, ref PR #5833)
Telegram:
- Add InlineKeyboard approval buttons via send_exec_approval()
- Add ea:* callback handling in _handle_callback_query()
- Uses monotonic counter + _approval_state dict to map button clicks
back to session keys (avoids 64-byte callback_data limit)
Both platforms now auto-detected by the gateway runner's
_approval_notify_sync() — any adapter with send_exec_approval() on
its class gets button-based approval instead of text fallback.
Inspired by community PRs #3898 (LevSky22), #2953 (ygd58), #5833
(heathley). Implemented fresh on current main.
Tests: 24 new tests covering button rendering, action handling,
thread context fetching, session key fix, double-click prevention.
Comprehensive cleanup across 80 files based on automated (ruff, pyflakes, vulture)
and manual analysis of the entire codebase.
Changes by category:
Unused imports removed (~95 across 55 files):
- Removed genuinely unused imports from all major subsystems
- agent/, hermes_cli/, tools/, gateway/, plugins/, cron/
- Includes imports in try/except blocks that were truly unused
(vs availability checks which were left alone)
Unused variables removed (~25):
- Removed dead variables: connected, inner, channels, last_exc,
source, new_server_names, verify, pconfig, default_terminal,
result, pending_handled, temperature, loop
- Dropped unused argparse subparser assignments in hermes_cli/main.py
(12 instances of add_parser() where result was never used)
Dead code removed:
- run_agent.py: Removed dead ternary (None if False else None) and
surrounding unreachable branch in identity fallback
- run_agent.py: Removed write-only attribute _last_reported_tool
- hermes_cli/providers.py: Removed dead @property decorator on
module-level function (decorator has no effect outside a class)
- gateway/run.py: Removed unused MCP config load before reconnect
- gateway/platforms/slack.py: Removed dead SessionSource construction
Undefined name bugs fixed (would cause NameError at runtime):
- batch_runner.py: Added missing logger = logging.getLogger(__name__)
- tools/environments/daytona.py: Added missing Dict and Path imports
Unnecessary global statements removed (14):
- tools/terminal_tool.py: 5 functions declared global for dicts
they only mutated via .pop()/[key]=value (no rebinding)
- tools/browser_tool.py: cleanup thread loop only reads flag
- tools/rl_training_tool.py: 4 functions only do dict mutations
- tools/mcp_oauth.py: only reads the global
- hermes_time.py: only reads cached values
Inefficient patterns fixed:
- startswith/endswith tuple form: 15 instances of
x.startswith('a') or x.startswith('b') consolidated to
x.startswith(('a', 'b'))
- len(x)==0 / len(x)>0: 13 instances replaced with pythonic
truthiness checks (not x / bool(x))
- in dict.keys(): 5 instances simplified to in dict
- Redefined unused name: removed duplicate _strip_mdv2 import in
send_message_tool.py
Other fixes:
- hermes_cli/doctor.py: Replaced undefined logger.debug() with pass
- hermes_cli/config.py: Consolidated chained .endswith() calls
Test results: 3934 passed, 17 failed (all pre-existing on main),
19 skipped. Zero regressions.
- Raise max_models from 8 to 50 so all curated models come through
- Add _build_model_keyboard() helper with 8-per-page pagination
- Next ▶ / ◀ Prev buttons with page counter (e.g. 2/4)
- mg:<page> callback data for page navigation
- Catch-all query.answer() for noop buttons
/model with no args now shows an interactive UI on Telegram and Discord
instead of a text list:
Telegram: Inline keyboard buttons — two-step drill-down.
Step 1: Provider buttons with model counts (e.g. 'OpenRouter (15)')
Step 2: Model buttons within the selected provider
Edits the same message in-place as the user navigates.
Back/Cancel buttons for navigation.
Discord: Embed + Select dropdown menus via discord.ui.View.
Step 1: Provider dropdown with model counts
Step 2: Model dropdown within the selected provider
Back/Cancel buttons. Auth-gated to allowed users.
Platforms without picker support (Slack, WhatsApp, Signal, etc.)
fall back to the existing text list.
/model <name> continues to work as a direct text switch on all
platforms — the interactive picker is only for bare /model.
Implementation:
- TelegramAdapter.send_model_picker() + _handle_model_picker_callback()
with compact callback_data (mp:/mm:/mb/mx, all within 64-byte limit)
- DiscordAdapter.send_model_picker() + ModelPickerView (discord.ui.View)
with Select menus (up to 25 options per dropdown)
- GatewayRunner._handle_model_command() detects adapter capability via
getattr(type(adapter), 'send_model_picker', None) (safe with mocks)
and sends picker with async callback closure for the switch logic
- Callback performs full switch: switch_model(), cached agent update,
session override, pending model note — same as /model <name>
Threads (Telegram forum topics, Discord threads, Slack threads) now default
to shared sessions where all participants see the same conversation. This is
the expected UX for threaded conversations where multiple users @mention the
bot and interact collaboratively.
Changes:
- build_session_key(): when thread_id is present, user_id is no longer
appended to the session key (threads are shared by default)
- New config: thread_sessions_per_user (default: false) — opt-in to restore
per-user isolation in threads if needed
- Sender attribution: messages in shared threads are prefixed with
[sender name] so the agent can tell participants apart
- System prompt: shared threads show 'Multi-user thread' note instead of
a per-turn User line (avoids busting prompt cache)
- Wired through all callers: gateway/run.py, base.py, telegram.py, feishu.py
- Regular group messages (no thread) remain per-user isolated (unchanged)
- DM threads are unaffected (they have their own keying logic)
Closes community request from demontut_ re: thread-based shared sessions.
Telegram polling can inherit a stale webhook registration when a deployment
switches transport modes, which leaves getUpdates idle even though the gateway
starts cleanly. Outbound send also treats Telegram retry_after responses as
terminal errors, so brief flood control can drop tool progress and replies.
Constraint: Keep the PR narrowly scoped to upstream/main Telegram adapter behavior
Rejected: Port OpenClaw's broader polling supervisor and offset persistence | too broad for an isolated fix PR
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Polling mode should clear webhook state before starting getUpdates, and send-path retry logic must distinguish flood control from timeouts
Tested: uv run --extra dev pytest tests/gateway/test_telegram_* -q
Not-tested: Live Telegram webhook-to-polling migration and real Bot API 429 behavior
* feat(gateway): live-stream /update output + forward interactive prompts
Adds real-time output streaming and interactive prompt forwarding for
the gateway /update command, so users on Telegram/Discord/etc see the
full update progress and can respond to prompts (stash restore, config
migration) without needing terminal access.
Changes:
hermes_cli/main.py:
- Add --gateway flag to 'hermes update' argparse
- Add _gateway_prompt() file-based IPC function that writes
.update_prompt.json and polls for .update_response
- Modify _restore_stashed_changes() to accept optional input_fn
parameter for gateway mode prompt forwarding
- cmd_update() uses _gateway_prompt when --gateway is set, enabling
interactive stash restore and config migration prompts
gateway/run.py:
- _handle_update_command: spawn with --gateway flag and
PYTHONUNBUFFERED=1 for real-time output flushing
- Store session_key in .update_pending.json for cross-restart
session matching
- Add _update_prompt_pending dict to track sessions awaiting
update prompt responses
- Replace _watch_for_update_completion with _watch_update_progress:
streams output chunks every ~4s, detects .update_prompt.json and
forwards prompts to the user, handles completion/failure/timeout
- Add update prompt interception in _handle_message: when a prompt
is pending, the user's next message is written to .update_response
instead of being processed normally
- Preserve _send_update_notification as legacy fallback for
post-restart cases where adapter isn't available yet
File-based IPC protocol:
- .update_prompt.json: written by update process with prompt text,
default value, and unique ID
- .update_response: written by gateway with user's answer
- .update_output.txt: existing, now streamed in real-time
- .update_exit_code: existing completion marker
Tests: 16 new tests covering _gateway_prompt IPC, output streaming,
prompt detection/forwarding, message interception, and cleanup.
* feat: interactive buttons for update prompts (Telegram + Discord)
Telegram: Inline keyboard with ✓ Yes / ✗ No buttons. Clicking a button
answers the callback query, edits the message to show the choice, and
writes .update_response directly. CallbackQueryHandler registered on
the update_prompt: prefix.
Discord: UpdatePromptView (discord.ui.View) with green Yes / red No
buttons. Follows the ExecApprovalView pattern — auth check, embed color
update, disabled-after-click. Writes .update_response on click.
All platforms: /approve and /deny (and /yes, /no) now work as shorthand
for yes/no when an update prompt is pending. The text fallback message
instructs users to use these commands. Raw message interception still
works as a fallback for non-command responses.
Gateway watcher checks adapter for send_update_prompt method (class-level
check to avoid MagicMock false positives) and falls back to text prompt
with /approve instructions when unavailable.
* fix: block /update on non-messaging platforms (API, webhooks, ACP)
Add _UPDATE_ALLOWED_PLATFORMS frozenset that explicitly lists messaging
platforms where /update is permitted. API server, webhook, and ACP
platforms get a clear error directing them to run hermes update from
the terminal instead.
ACP and API server already don't reach _handle_message (separate
codepaths), and webhooks have distinct session keys that can't collide
with messaging sessions. This guard is belt-and-suspenders.
TimedOut is a subclass of NetworkError in python-telegram-bot. The
inner retry loop in send() and the outer _send_with_retry() in base.py
both treated it as a transient connection error and retried — but
send_message is not idempotent. When the request reaches Telegram but
the HTTP response times out, the message is already delivered. Retrying
sends duplicates. Worst case: up to 9 copies (inner 3x × outer 3x).
Inner loop (telegram.py):
- Import TimedOut separately, isinstance-check before generic
NetworkError retry (same pattern as BadRequest carve-out from #3390)
- Re-raise immediately — no retry
- Mark as retryable=False in outer exception handler
Outer loop (base.py):
- Remove 'timeout', 'timed out', 'readtimeout', 'writetimeout' from
_RETRYABLE_ERROR_PATTERNS (read/write timeouts are delivery-ambiguous)
- Add 'connecttimeout' (safe — connection never established)
- Keep 'network' (other platforms still need it)
- Add _is_timeout_error() + early return to prevent plain-text fallback
on timeout errors (would also cause duplicate delivery)
Connection errors (ConnectionReset, ConnectError, etc.) are still
retried — these fail before the request reaches the server.
Credit: tmdgusya (PR #3899), barun1997 (PR #3904) for identifying the
bug and proposing fixes.
Closes#3899, closes#3904.
