Uploaded code

docs/MIGRATION_SUMMARY.md

@@ -0,0 +1,118 @@
+# Sharey B2 Migration Summary
+
+## What Changed
+
+Your Sharey application has been successfully modified to use Backblaze B2 cloud storage instead of local file storage. Here are the key changes:
+
+### 🔄 Core Changes
+
+1. **Storage Backend**: 
+   - Removed local file storage (`uploads/` and `pastes/` folders)
+   - Added Backblaze B2 cloud storage integration
+   - Files and pastes now stored in B2 bucket
+
+2. **Dependencies Added**:
+   - `b2sdk`: Official Backblaze B2 SDK
+   - `python-dotenv`: Environment variable management
+
+3. **Configuration**:
+   - Added `.env` file support for B2 credentials
+   - Added connection validation and error handling
+   - Added health check endpoint
+
+### 📁 New Files Created
+
+- `requirements.txt` - Python dependencies
+- `.env.example` - Environment template
+- `setup.py` - Automated setup script (Python-based)
+- `test_b2.py` - B2 connection testing utility
+- `DEPLOYMENT.md` - Production deployment guide
+- Updated `.gitignore` - Improved git ignore rules
+- Updated `README.md` - Comprehensive setup instructions
+
+### 🔧 Modified Functions
+
+1. **File Upload** (`/api/upload`):
+   - Now uploads files directly to B2 bucket under `files/` prefix
+   - Returns B2 direct download URLs
+   - Better error handling
+
+2. **File Serving** (`/files/<file_id>`):
+   - Now redirects to B2 download URLs
+   - No longer serves files locally
+
+3. **Paste Creation** (`/api/paste`):
+   - Stores paste content in B2 under `pastes/` prefix
+   - UTF-8 encoding support
+
+4. **Paste Viewing** (`/pastes/<paste_id>` and `/pastes/raw/<paste_id>`):
+   - Downloads paste content from B2
+   - Maintains same user interface
+
+### 🏗️ Bucket Organization
+
+Your B2 bucket will be organized as:
+```
+your-bucket/
+├── files/          # Uploaded files (images, documents, etc.)
+│   ├── abc123.jpg
+│   ├── def456.pdf
+│   └── ...
+└── pastes/         # Text pastes
+    ├── ghi789.txt
+    ├── jkl012.txt
+    └── ...
+```
+
+## Next Steps
+
+1. **Get B2 Credentials**:
+   - Sign up at [Backblaze B2](https://www.backblaze.com/b2)
+   - Create application key and bucket
+   - Note down: Key ID, Application Key, Bucket Name
+
+2. **Configure Environment**:
+   ```bash
+   cp .env.example .env
+   # Edit .env with your B2 credentials
+   ```
+
+3. **Install Dependencies**:
+   ```bash
+   python setup.py  # or manually: pip install -r requirements.txt
+   ```
+
+4. **Test Configuration**:
+   ```bash
+   python test_b2.py
+   ```
+
+5. **Run Application**:
+   ```bash
+   python app.py
+   ```
+
+## Benefits of B2 Storage
+
+- ✅ **Scalable**: No local disk space limitations
+- ✅ **Reliable**: Built-in redundancy and backups
+- ✅ **Cost-effective**: Pay only for what you use
+- ✅ **Global CDN**: Fast downloads worldwide
+- ✅ **Secure**: Encrypted storage with access controls
+- ✅ **Maintenance-free**: No local file management needed
+
+## Migration Notes
+
+- Existing local files/pastes will remain in local folders
+- New uploads will go to B2
+- Old URLs will break (files are now served from B2)
+- No data migration script provided (manual migration needed if desired)
+- B2 bucket should be set to "Public" for file sharing to work properly
+
+## Support
+
+If you encounter issues:
+1. Run `python test_b2.py` to test your configuration
+2. Check the health endpoint: `http://localhost:8866/health`
+3. Verify B2 bucket permissions and settings
+4. Ensure your .env file has correct credentials