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Update main.py - #55
saidblcd-hue wants to merge 1 commit into
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📝 WalkthroughWalkthroughThe entire application transitions from a Telebot polling-based command handler to a Flask web server. A new message formatter computes trade signal details (stop-loss, take-profit) from price and ATR. Three HTTP endpoints handle webhook signals, connection tests, and health checks, all authenticated via a shared secret. Startup launches Flask on a configurable port instead of entering a polling loop. ChangesPolling to webhook-based Telegram bot
Sequence Diagram(s)sequenceDiagram
participant Client
participant Flask
participant Bot as python-telegram-bot
participant Telegram
Client->>Flask: POST /webhook with signal, price, timeframe, atr
Flask->>Flask: validate secret parameter
Flask->>Flask: parse JSON payload
Flask->>Flask: select format_buy_message or format_sell_message
Flask->>Bot: send_message(chat_id, formatted_message)
Bot->>Telegram: API call
Telegram->>Bot: confirmation
Bot->>Flask: return
Flask->>Client: 200 JSON status response
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (1 warning, 1 inconclusive)
✅ Passed checks (3 passed)
✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 3
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@main.py`:
- Around line 56-57: The except block in main.py currently returns the raw
exception string (except Exception as e) to clients via jsonify, which leaks
internal details; change it to log the full exception server-side using
app.logger.exception(e) or logging.exception("...") and return a generic JSON
error (e.g. {"error":"Internal server error"}) with the 500 status code instead
of str(e), keeping the same handler (the except Exception as e block and jsonify
call) but replacing the returned message and adding the logging call.
- Around line 11-13: TELEGRAM_TOKEN, TELEGRAM_CHAT_ID and WEBHOOK_SECRET are
using insecure default fallbacks; change retrieval to require these env vars and
fail fast at startup by checking the values after os.environ.get (or use
os.environ[]) and raising a clear exception (RuntimeError/SystemExit) if any are
missing or empty so the process won't start with predictable or placeholder
secrets; reference the TELEGRAM_TOKEN, TELEGRAM_CHAT_ID and WEBHOOK_SECRET
symbols when adding the validation and error messages.
- Around line 39-41: Replace the naive inequality check used to validate the
webhook secret with a timing-safe comparison: import the standard library
secrets module and use secrets.compare_digest to compare the value returned by
request.args.get("secret", "") (the local variable secret) against the
WEBHOOK_SECRET constant; apply the identical change to the `/test` endpoint
where the same direct `!=` comparison is used so both checks use
secrets.compare_digest and ensure both operands are strings before comparing.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
| TELEGRAM_TOKEN = os.environ.get("TELEGRAM_TOKEN", "VOTRE_TOKEN_ICI") | ||
| TELEGRAM_CHAT_ID = os.environ.get("TELEGRAM_CHAT_ID", "VOTRE_CHAT_ID_ICI") | ||
| WEBHOOK_SECRET = os.environ.get("WEBHOOK_SECRET", "eurusd_secret_2024") |
There was a problem hiding this comment.
Avoid hardcoded default secrets; fail fast on missing configuration.
The fallback "eurusd_secret_2024" is predictable and could be exploited if the environment variable is unset. Similarly, placeholder tokens will cause silent failures at runtime. Require these values explicitly or fail at startup.
Proposed fix
-TELEGRAM_TOKEN = os.environ.get("TELEGRAM_TOKEN", "VOTRE_TOKEN_ICI")
-TELEGRAM_CHAT_ID = os.environ.get("TELEGRAM_CHAT_ID", "VOTRE_CHAT_ID_ICI")
-WEBHOOK_SECRET = os.environ.get("WEBHOOK_SECRET", "eurusd_secret_2024")
+TELEGRAM_TOKEN = os.environ.get("TELEGRAM_TOKEN")
+TELEGRAM_CHAT_ID = os.environ.get("TELEGRAM_CHAT_ID")
+WEBHOOK_SECRET = os.environ.get("WEBHOOK_SECRET")
+
+if not all([TELEGRAM_TOKEN, TELEGRAM_CHAT_ID, WEBHOOK_SECRET]):
+ raise RuntimeError("Missing required environment variables: TELEGRAM_TOKEN, TELEGRAM_CHAT_ID, WEBHOOK_SECRET")🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@main.py` around lines 11 - 13, TELEGRAM_TOKEN, TELEGRAM_CHAT_ID and
WEBHOOK_SECRET are using insecure default fallbacks; change retrieval to require
these env vars and fail fast at startup by checking the values after
os.environ.get (or use os.environ[]) and raising a clear exception
(RuntimeError/SystemExit) if any are missing or empty so the process won't start
with predictable or placeholder secrets; reference the TELEGRAM_TOKEN,
TELEGRAM_CHAT_ID and WEBHOOK_SECRET symbols when adding the validation and error
messages.
| secret = request.args.get("secret", "") | ||
| if secret != WEBHOOK_SECRET: | ||
| return jsonify({"error": "Unauthorized"}), 401 |
There was a problem hiding this comment.
Use timing-safe comparison for secret validation.
String comparison with != is vulnerable to timing attacks. An attacker could potentially determine the secret character-by-character by measuring response times.
Proposed fix
Add import at the top of the file:
import secretsThen update the comparison:
secret = request.args.get("secret", "")
- if secret != WEBHOOK_SECRET:
+ if not secrets.compare_digest(secret, WEBHOOK_SECRET):
return jsonify({"error": "Unauthorized"}), 401Apply the same fix to the /test endpoint at line 62.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@main.py` around lines 39 - 41, Replace the naive inequality check used to
validate the webhook secret with a timing-safe comparison: import the standard
library secrets module and use secrets.compare_digest to compare the value
returned by request.args.get("secret", "") (the local variable secret) against
the WEBHOOK_SECRET constant; apply the identical change to the `/test` endpoint
where the same direct `!=` comparison is used so both checks use
secrets.compare_digest and ensure both operands are strings before comparing.
| except Exception as e: | ||
| return jsonify({"error": str(e)}), 500 |
There was a problem hiding this comment.
Avoid leaking exception details to clients.
Returning str(e) exposes internal error messages that could reveal implementation details to attackers. Log the exception server-side and return a generic error message.
Proposed fix
except Exception as e:
- return jsonify({"error": str(e)}), 500
+ app.logger.exception("Webhook processing failed")
+ return jsonify({"error": "Internal server error"}), 500📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| except Exception as e: | |
| return jsonify({"error": str(e)}), 500 | |
| except Exception as e: | |
| app.logger.exception("Webhook processing failed") | |
| return jsonify({"error": "Internal server error"}), 500 |
🧰 Tools
🪛 Ruff (0.15.13)
[warning] 56-56: Do not catch blind exception: Exception
(BLE001)
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@main.py` around lines 56 - 57, The except block in main.py currently returns
the raw exception string (except Exception as e) to clients via jsonify, which
leaks internal details; change it to log the full exception server-side using
app.logger.exception(e) or logging.exception("...") and return a generic JSON
error (e.g. {"error":"Internal server error"}) with the 500 status code instead
of str(e), keeping the same handler (the except Exception as e block and jsonify
call) but replacing the returned message and adding the logging call.
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Summary by CodeRabbit
New Features
Refactor