Tello-Renewal

中文版 | English Version

Automatic renewal system for Tello mobile plans. Uses CloakBrowser (headless Chromium with 57 source-level patches) to bypass Cloudflare managed challenges on Tello's checkout endpoint.

Features

• 🔄 Automatic plan renewal via CloakBrowser
• 🛡️ Cloudflare bypass via real browser fingerprinting (CloakBrowser)
• 📋 Plan catalog check — monitor available plans without login
• 📧 Email notifications for success / failure
• 🧪 Dry-run mode for safe testing
• 📡 JSON-first CLI output — machine-readable by default, --human for text
• ⚙️ YAML configuration with pydantic validation
• 📊 Structured logging with rotation
• 🐳 Docker support — single image with CloakBrowser pre-bundled

Installation

From PyPI

pip install tello-renewal
python -m cloakbrowser install   # download patched Chromium (~200 MB, one-time)

Requirements

• Python 3.10+
• CloakBrowser's Chromium is self-contained (downloaded via python -m cloakbrowser install)

Quick Start

1. Create configuration file:

   tello-renewal config-init
   

2. Edit config.yaml with your Tello credentials:

   tello:
     email: "you@example.com"
     password: "your_password"
     card_expiration: "1/27"      # MM/YY
   

3. Test:

   tello-renewal config-validate
   tello-renewal email-test
   tello-renewal status
   

4. Renew:

   tello-renewal renew --dry-run   # test without charging
   tello-renewal renew             # real renewal
   

Configuration Reference

tello:
  email: "you@example.com"
  password: "your_password"
  card_expiration: "1/27"        # MM/YY, MM/YYYY, or YYYY-MM-DD
  base_url: "https://tello.com"
  login_timeout: 30

browser:
  browser_type: "cloakbrowser"
  headless: true                   # false for headed mode (helps with CF)
  timeout: 60
  # proxy_server: "http://10.0.0.1:7890"

# Expected plan (optional) — status/renew warn on mismatch
plan:
  data: "2 GB"                     # "2 GB", "10 GB", "20 GB", "Unlimited"
  call: "Unlimited"                # "300 min", "Unlimited"

renewal:
  auto_renew: true
  days_before_renewal: 1         # start attempting N days before due date
  max_retries: 3
  retry_delay: 300               # seconds between retries
  dry_run: false
  state_folder_path: ".tello_state"

smtp:
  server: "smtp.gmail.com"
  port: 587
  username: "you@gmail.com"
  password: "app_password"
  from_email: '"Tello Renewal" <you@gmail.com>'
  use_tls: true

notifications:
  email_enabled: true
  recipients:
    - "admin@example.com"
  send_on_success: true
  send_on_failure: true
  send_on_not_due: false

logging:
  level: "INFO"
  format: "detailed"             # simple | detailed | json
  file: "tello_renewal.log"
  max_size: "10MB"
  backup_count: 5
  console_output: true

CLI Commands

tello-renewal renew [--dry-run] [--force]   # execute renewal
tello-renewal status                         # account status and balance
tello-renewal plan-check                     # list available plan options
tello-renewal config-init [--output FILE]   # generate example config
tello-renewal config-validate               # validate config file
tello-renewal email-test                    # send test notification

Global options: --config FILE, --verbose, --human, --version

Output is JSON by default (machine-readable). Add --human for a human-friendly table/text view:

tello-renewal status                        # JSON output
tello-renewal --human status                # human-readable text
tello-renewal --human plan-check            # plan table

Exit Codes

Docker

The Docker image (python:3.12-slim base) includes CloakBrowser's Chromium pre-downloaded.

docker run --rm --shm-size=256m \
  -v /path/to/config:/app/config:ro \
  -v /path/to/logs:/app/logs \
  oaklight/tello-renewal:latest \
  tello-renewal --config /app/config/config.yaml renew

--shm-size=256m is required — Chromium uses /dev/shm for IPC and crashes with the default 64 MB Docker limit.

Build from source

make build-package   # build Python wheel
make build-docker    # build Docker image from local wheel

# Optional overrides
make build-docker MIRROR=https://pypi.tuna.tsinghua.edu.cn/simple
make build-docker REGISTRY_MIRROR=docker.1ms.run

Cron with Docker

0 0 * * * docker run --rm --shm-size=256m \
  -v ~/.config/tello-renewal:/app/config:ro \
  -v /var/log/tello-renewal:/app/logs \
  oaklight/tello-renewal:latest \
  tello-renewal --config /app/config/config.yaml renew >/dev/null 2>&1

Scheduling (without Docker)

Cron

0 0 * * * /path/to/venv/bin/tello-renewal renew >> /var/log/tello-renewal.log 2>&1

Systemd timer

# /etc/systemd/system/tello-renewal.service
[Unit]
Description=Tello Plan Auto Renewal
After=network.target

[Service]
Type=oneshot
User=tello
ExecStart=/opt/tello-renewal/venv/bin/tello-renewal renew

# /etc/systemd/system/tello-renewal.timer
[Unit]
Description=Run Tello renewal daily

[Timer]
OnCalendar=daily
Persistent=true

[Install]
WantedBy=timers.target

sudo systemctl enable --now tello-renewal.timer

Troubleshooting

CloakBrowser binary missing:

python -m cloakbrowser install

Email sending failures: Use app-specific passwords. Test with tello-renewal email-test.

Debug mode:

tello-renewal --verbose renew --dry-run

Development

git clone https://github.com/Oaklight/Tello-Renewal.git
cd Tello-Renewal
pip install -e ".[dev]"
python -m cloakbrowser install
pytest
ruff check src/

Changelog

See CHANGELOG.md.

License

MIT — see LICENSE.

Disclaimer

Provided as-is for personal automation. You are responsible for complying with Tello's terms of service and for the security of your credentials. The authors are not liable for failed renewals or service interruptions.