mirror of
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145 lines
4.8 KiB
Markdown
145 lines
4.8 KiB
Markdown
# Owncloud Backup Homeassistant
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Home Assistant custom integration that adds **ownCloud (Classic/Server)** as a **Backup Location / Backup Agent** using the official **WebDAV** interface.
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This integration allows you to:
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- store Home Assistant backups in ownCloud via WebDAV
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- list backups stored in ownCloud from within the Home Assistant UI
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- download and **restore** backups via the Home Assistant UI
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- authenticate using **either** an ownCloud **App Password** (recommended for 2FA) **or** the regular account password
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> **Status:** `0.2.0`
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> This release focuses on reliability and compatibility across Home Assistant versions.
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---
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## Features
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- ✅ Home Assistant **Backup Agent** implementation (Backup Location)
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- ✅ **Upload** backups to ownCloud via WebDAV
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- ✅ **List** backups from ownCloud in HA UI
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- ✅ **Download / Restore** backups via HA UI (streaming download)
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- ✅ **Delete** backups from ownCloud
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- ✅ Automatic DAV endpoint detection for ownCloud Classic:
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- `/remote.php/dav/files/<user>/`
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- `/remote.php/webdav/`
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- ✅ Metadata sidecar (`.json`) for reliable listing + fallback when metadata is missing
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- ✅ Supports **App Password** and **standard login**
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- ✅ English UI & documentation
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- ✅ HACS-ready repository structure
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### Upload reliability (important)
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To improve reliability behind reverse proxies and avoid WebDAV timeouts with chunked uploads,
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the integration **spools the backup to a temporary file** and then uploads it with a proper
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**Content-Length** header.
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### Home Assistant compatibility
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Home Assistant has evolved its backup metadata schema over time. This integration normalizes
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backup metadata keys to remain compatible across multiple Home Assistant versions.
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---
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## Requirements
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- Home Assistant version that supports the modern Backup system with backup agents (2025.x+).
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- ownCloud Classic / Server with WebDAV enabled (default in ownCloud).
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---
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## Installation (HACS)
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### Add as a custom repository
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1. In Home Assistant: **HACS → Integrations → ⋮ → Custom repositories**
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2. Add your repository URL
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3. Category: **Integration**
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4. Install **owncloud-backup-ha**
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5. Restart Home Assistant
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> This repository includes a `hacs.json` and follows the required `custom_components/` layout.
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---
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## Installation (Manual)
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1. Copy the folder `custom_components/owncloud_backup/` into your Home Assistant config directory:
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- `<config>/custom_components/owncloud_backup/`
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2. Restart Home Assistant.
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---
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## Configuration
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1. In Home Assistant, go to:
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- **Settings → Devices & services → Add integration**
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2. Search for:
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- **ownCloud Backup (WebDAV)**
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3. Enter:
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- **Base URL** (example: `https://cloud.example.com`)
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- **Username**
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- **Password / App Password**
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- **Backup folder path** (default: `/HomeAssistant/Backups`)
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- **Verify SSL** (default: enabled)
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### Recommended authentication
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- If you use **2FA**, create an **App Password** and use it as the "Password" field.
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- If you do **not** use 2FA, your standard login password should also work.
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---
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## How backups are stored in ownCloud
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The integration uploads:
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- the backup tarball: `ha_backup_<backup_id>.tar`
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- a metadata file: `ha_backup_<backup_id>.json`
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The JSON metadata enables reliable listing and display in the HA UI.
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If the JSON metadata is missing (e.g., you manually copied a `.tar`), the integration will still try to show the backup using WebDAV file properties (size + last modified time) as a fallback.
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---
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## Restore workflow (UI)
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1. **Settings → System → Backups**
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2. Select a backup from the ownCloud location
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3. Choose **Restore**
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Home Assistant will download the `.tar` from ownCloud using the Backup Agent API (streaming).
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---
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## Troubleshooting
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### "Upload failed" / HTTP 504 (Gateway Timeout)
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A 504 typically indicates a reverse proxy / gateway timeout (e.g., Nginx/Traefik/Cloudflare).
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This integration uploads with Content-Length (non-chunked) for better compatibility.
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If you still see 504:
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- Increase proxy timeouts (e.g. `proxy_read_timeout`, `proxy_send_timeout` in Nginx)
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- Ensure large uploads are allowed (`client_max_body_size` in Nginx)
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- Avoid buffering restrictions for WebDAV endpoints
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### "Cannot connect"
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- Check your **Base URL**
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- Make sure the ownCloud user can access WebDAV
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- If you use 2FA, try an **App Password**
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- Verify that your reverse proxy does not block `PROPFIND`, `MKCOL`, or `DELETE`
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### SSL / certificate issues
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- If you use a self-signed certificate, either:
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- install the CA properly, or
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- temporarily disable **Verify SSL** (not recommended for production)
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---
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## Security notes
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- Credentials are stored in Home Assistant config entry storage.
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- Prefer **App Passwords** over your main login password, especially with 2FA enabled.
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---
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## Development notes
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This integration intentionally does not depend on external Python packages to keep deployment simple.
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