132 lines
6.2 KiB
Markdown
132 lines
6.2 KiB
Markdown
---
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name: credential-management
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description: "Centralized credential management for 9Webs automation scripts — single .env file, Python loader, migration pattern. No more hardcoded passwords in scripts."
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version: 1.0.0
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author: Hermes Agent
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license: MIT
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metadata:
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hermes:
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tags: [credentials, security, secrets, env, dotenv]
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related_skills: [miaoshou-erp, atomk-platform, tongtool-workflows]
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---
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# Credential Management
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Centralized credential infrastructure for all 9Webs automation scripts. Scripts read credentials from a single `~/.hermes/credentials.env` file via a Python loader module — no hardcoded passwords anywhere.
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## When to use
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- Writing a new automation script that needs AtomK, Ozon, Gitea, Miaoshou, or email credentials
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- Migrating an existing hardcoded-credential script to the centralized pattern
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- Rotating credentials across all scripts at once
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- Debugging a `KeyError` from `atomk_credentials.get_credential()`
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## Architecture
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```
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~/.hermes/
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├── credentials.env # Single source of truth (chmod 600, never committed)
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└── scripts/
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└── atomk_credentials.py # Python loader with typed helpers
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```
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### credentials.env format
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```
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ATOMLISTING_USERNAME=admincao
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ATOMLISTING_PASSWORD=actual-value-here
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ATOMLISTING_API_BASE=https://www.atomlisting.com
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MIAOSHOU_USERNAME=...
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MIAOSHOU_PASSWORD=...
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OZON1_EMAIL=...
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OZON1_PASSWORD=...
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GITEA_USERNAME=admin9webs
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GITEA_PASSWORD=...
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```
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**Rules:**
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- `chmod 600` — owner read/write only
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- Never committed to Git (add to `.gitignore`)
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- `FILL_ME` placeholder means the value is not yet set
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- Override path with `ATOMK_CREDENTIALS_FILE` env var
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### Python loader API
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```python
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import sys, os
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sys.path.insert(0, os.path.expanduser("~/.hermes/scripts"))
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from atomk_credentials import (
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get_credential, # key → value
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get_atomk_auth, # → (username, password)
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get_miaoshou_auth, # → (username, password)
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get_ozon_auth, # → (email, password) — store=1 or 2
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get_gitea_auth, # → (username, password)
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)
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```
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The loader caches on first access. `get_credential()` raises `KeyError` if the value is unset or still `FILL_ME`.
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## Migration pattern
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When moving a script from hardcoded credentials to the loader:
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**Before (BAD):**
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```python
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ATOMK_USERNAME = "admincao"
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ATOMK_PASSWORD = "Tt123456!"
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```
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**After (GOOD):**
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```python
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import sys, os
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sys.path.insert(0, os.path.expanduser("~/.hermes/scripts"))
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from atomk_credentials import get_atomk_auth
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ATOMK_USERNAME, ATOMK_PASSWORD = get_atomk_auth()
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```
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**Steps for each script:**
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1. Add `import sys, os` if not present
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2. Add the `sys.path.insert` line before the credential import
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3. Import the appropriate helper function
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4. Replace hardcoded values with the function call
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5. Run `python3 -c "import ast; ast.parse(open('script.py').read())"` to verify syntax
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6. Test the script with the credential file populated
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## Adding new credentials
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1. Add the variable to `~/.hermes/credentials.env` with an initial `FILL_ME` placeholder
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2. Add a typed helper function to `atomk_credentials.py` (e.g., `get_new_service_auth()`)
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3. Fill in the actual value in `credentials.env`
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## Pitfalls
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1. **`KeyError` on first run** — the credential file ships with `FILL_ME` placeholders. The user must replace them with real values.
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2. **`ModuleNotFoundError: atomk_credentials`** — the script doesn't have `sys.path.insert(0, ...)` before the import. The `scripts/` directory is not on Python's default path.
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3. **Syntax error after migration** — verify with `ast.parse()` as shown above. The refactored lines must be valid Python.
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4. **Python 3.12+ f-string backslash restriction** — if the script uses backslash-escaped quotes inside f-strings (e.g., `f'{\"embedded\"}'`), extract the replacement string to a variable first. This is a Python version constraint, not credential-specific.
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5. **Credentials on command line** — never pass credentials as command-line arguments. They are visible in `ps` output and shell history. Always read from env or file.
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6. **MongoDB URI encoding with special chars** — passwords containing `@` (`%40`) and `#` (`%23`) can fail authentication when passed via URI string, even after `quote_plus()`. Workaround: pass `username=` and `password=` directly to `MongoClient()` constructor parameters instead of encoding them into the URI. See `references/mongodb-auth-patterns.md` for detailed examples.
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7. **Python venv/PEP 668** — this host enforces externally-managed Python (`--system` flag rejected). Use `python3 -m venv /tmp/venv && /tmp/venv/bin/pip install ...` for one-off tool deps (e.g., `pymongo`). Do not waste time fighting `uv pip install --system`.
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## Related credential stores
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- **Tencent Cloud / tccli:** `~/.tccli/default.credential` (INI format). Separate from `~/.hermes/credentials.env`. Used by `tencent-cloud-operations` skill for TAT, Lighthouse, and CVM API access. Managed independently.
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- **Production server .env:** `/root/AtomK_Operation_Tools/.env` on SG3 (43.134.190.229). Contains MongoDB, MySQL, API keys, and AI service credentials for the running AtomK_Server backend.
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- **premiumproducts MongoDB:** `mongodb://root:***@43.134.190.229:27018/premiumproducts?authSource=admin` (password contains `@` and `#`). New database (2026-07) for premium product management. Use direct constructor params — not URI encoding. See `references/mongodb-auth-patterns.md`.
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## Security rules
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1. Never `print()` or `log()` a credential value
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2. Never pass credentials on the command line (visible in `ps`)
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3. Never commit `credentials.env` to Git
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4. After rotating a password, update `credentials.env` — no script-level changes needed
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5. The loader checks for `FILL_ME` and raises `KeyError` rather than silently using a placeholder
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6. TAT (Tencent Automation Tools) aggressively masks passwords in remote command output — use `xxd` hex dump or char-by-char `ord()` extraction to read credentials from remote `.env` files
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## Support files
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- `templates/credentials.env` — clean template to copy to `~/.hermes/credentials.env`
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- `references/audit-findings.md` — 2026-06-22 security audit credential exposure summary
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- `scripts/scan_hardcoded_secrets.py` — scan a directory for known hardcoded secrets and suspicious patterns
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