# Include this file from OpenResty's http block. The Compose service listens only
# on 127.0.0.1:18080, so clients cannot bypass these controls.
map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

limit_req_zone $binary_remote_addr zone=account_api:10m rate=20r/s;
limit_req_zone $binary_remote_addr zone=invite_page:10m rate=5r/s;
limit_req_status 429;

upstream osg_account_server {
    server 127.0.0.1:18080;
    keepalive 32;
}

server {
    listen 80;
    listen [::]:80;
    server_name account.osglab.com;
    return 308 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name account.osglab.com;

    ssl_certificate /www/server/panel/vhost/cert/account.osglab.com/fullchain.pem;
    ssl_certificate_key /www/server/panel/vhost/cert/account.osglab.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_session_timeout 1d;
    ssl_session_cache shared:account_tls:10m;
    # Request client certificates at the shared TLS edge without requiring them
    # for mobile APIs. Only the dedicated admin CA is trusted for verification.
    ssl_client_certificate /www/server/openresty/conf/mtls/admin-client-ca.pem;
    ssl_verify_client optional;
    ssl_verify_depth 2;
    # An invalid certificate is rejected before location processing; normalize
    # that TLS verification failure so it does not reveal the protected surface.
    error_page 495 =404 @client_certificate_not_found;

    client_max_body_size 21m;
    server_tokens off;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;
    add_header Referrer-Policy "no-referrer" always;

    # Internal-only endpoints remain unavailable through this public vhost.
    location ~ ^/internal(?:/|$) {
        return 404;
    }

    # Always forward administrative paths to Ktor. Ktor decides whether mTLS is
    # required from ADMIN_MTLS_REQUIRED, while this edge overwrites the trust
    # signal so clients cannot spoof successful certificate verification.
    location ~ ^/(?:admin|v1/admin)(?:/|$) {
        client_max_body_size 32k;
        limit_req zone=account_api burst=40 nodelay;
        # Defining a location-level header disables inheritance from the server
        # block, so repeat the security headers explicitly.
        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header X-Frame-Options "DENY" always;
        add_header Referrer-Policy "no-referrer" always;
        add_header Content-Security-Policy "default-src 'self'; base-uri 'none'; frame-ancestors 'none'; form-action 'self'; object-src 'none'; script-src 'self'; style-src 'self'; connect-src 'self'" always;
        add_header Cache-Control "no-store" always;
        proxy_pass http://osg_account_server;
        proxy_http_version 1.1;
        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 https;
        proxy_set_header X-Request-ID $request_id;
        proxy_set_header X-OSG-mTLS-Verified $ssl_client_verify;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_hide_header Server;
        proxy_request_buffering off;
        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 360s;
        proxy_send_timeout 360s;
    }

    location @client_certificate_not_found {
        return 404;
    }

    location / {
        limit_req zone=account_api burst=40 nodelay;
        proxy_pass http://osg_account_server;
        proxy_http_version 1.1;
        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 https;
        proxy_set_header X-Request-ID $request_id;
        # Suppress spoofed trust signals on every non-admin request.
        proxy_set_header X-OSG-mTLS-Verified "";
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_hide_header Server;
        proxy_request_buffering off;
        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 360s;
        proxy_send_timeout 360s;
    }
}

server {
    listen 80;
    listen [::]:80;
    server_name osglab.com www.osglab.com;
    return 308 https://osglab.com$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name osglab.com www.osglab.com;

    ssl_certificate /www/server/panel/vhost/cert/osglab.com/fullchain.pem;
    ssl_certificate_key /www/server/panel/vhost/cert/osglab.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    server_tokens off;

    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer" always;

    location = /.well-known/apple-app-site-association {
        access_log off;
        proxy_pass http://osg_account_server;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto https;
    }

    location = /apple-app-site-association {
        access_log off;
        proxy_pass http://osg_account_server;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto https;
    }

    # Invitation codes are bearer-like values and must not appear in access logs.
    location ^~ /i/ {
        access_log off;
        limit_req zone=invite_page burst=10 nodelay;
        proxy_pass http://osg_account_server;
        proxy_http_version 1.1;
        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 https;
        proxy_set_header X-Request-ID $request_id;
        proxy_hide_header Server;
        proxy_buffering off;
        proxy_cache off;
    }

    # Keep the existing 1Panel site root for all non-invitation pages.
    root /www/wwwroot/osglab.com;
    location / {
        try_files $uri $uri/ =404;
    }
}