# ============================================================================
# Nginx Configuration for WebDAV Server
# Place this in: /etc/nginx/conf.d/webdav.conf
# ============================================================================

# Upstream backend


# HTTP Server - Redirect to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name webdav.example.com;  # Change to your domain

    # Let's Encrypt ACME challenge
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }
upstream webdav_backend {
    server webdav:8080 max_fails=3 fail_timeout=30s;
    keepalive 32;
}
    # Redirect all other traffic to HTTPS
    location / {
        return 301 https://$server_name$request_uri;
    }
}

# HTTPS Server - Main WebDAV
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name webdav.example.com;  # Change to your domain

    # SSL Configuration
    ssl_certificate /etc/nginx/ssl/fullchain.pem;
    ssl_certificate_key /etc/nginx/ssl/privkey.pem;
    
    # SSL Security Settings
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384';
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    ssl_stapling on;
    ssl_stapling_verify on;
    
    # Security Headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-XSS-Protection "1; mode=block" always;

    # WebDAV Specific Settings
    client_max_body_size 1G;                # Maximum file size
    client_body_buffer_size 128k;
    client_body_timeout 300s;               # Timeout for client body
    client_header_timeout 60s;
    send_timeout 300s;                      # Timeout for sending response
    
    # Proxy buffering (disable for large files)
    proxy_buffering off;
    proxy_request_buffering off;
    
    # Timeouts
    proxy_connect_timeout 60s;
    proxy_send_timeout 300s;
    proxy_read_timeout 300s;

    # Logging
    access_log /var/log/nginx/webdav_access.log combined;
    error_log /var/log/nginx/webdav_error.log warn;

    # Root location - WebDAV
    location / {
        # Proxy to backend
        proxy_pass http://webdav_backend;
        
        # Standard proxy headers
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Port $server_port;
        
        # WebDAV specific headers
        proxy_set_header Destination $http_destination;
        proxy_set_header Depth $http_depth;
        proxy_set_header Overwrite $http_overwrite;
        proxy_set_header Lock-Token $http_lock_token;
        proxy_set_header Timeout $http_timeout;
        proxy_set_header If $http_if;
        
        # HTTP 1.1 support
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        
        # Disable redirects
        proxy_redirect off;
        
        # Handle errors
        proxy_intercept_errors off;
    }
    
    # Health check endpoint
    location /health {
        proxy_pass http://webdav_backend/health;
        access_log off;
    }
    
    # Deny access to hidden files
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}

# ============================================================================
# HTTP Configuration without SSL (for development only)
# ============================================================================

# Uncomment this section for development without SSL
# server {
#     listen 80;
#     listen [::]:80;
#     server_name webdav.example.com;
#
#     client_max_body_size 1G;
#     client_body_buffer_size 128k;
#     client_body_timeout 300s;
#     send_timeout 300s;
#
#     location / {
#         proxy_pass http://webdav_backend;
#         proxy_set_header Host $host;
#         proxy_set_header X-Real-IP $remote_addr;
#         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
#         proxy_set_header X-Forwarded-Proto $scheme;
#         
#         # WebDAV headers
#         proxy_set_header Destination $http_destination;
#         proxy_set_header Depth $http_depth;
#         proxy_set_header Overwrite $http_overwrite;
#         proxy_set_header Lock-Token $http_lock_token;
#         
#         proxy_http_version 1.1;
#         proxy_set_header Connection "";
#         proxy_redirect off;
#         proxy_buffering off;
#     }
# }