set $main_domain "__DOMAIN__";
set $sandbox_domain "__SANDBOXDOMAIN__";
set $allowed_origins "https://${sandbox_domain}";
set $api_domain "__DOMAIN__";
set $files_domain "__DOMAIN__";
ssl_ecdh_curve secp384r1;

more_set_headers "Access-Control-Allow-Origin: '${allowed_origins}'";
more_set_headers "Cross-Origin-Resource-Policy: cross-origin";
more_set_headers "Cross-Origin-Embedder-Policy: require-corp";

root __INSTALL_DIR__/;
index index.html;
error_page 404 /customize.dist/404.html;

if ($args ~ ver=) {
    set $cacheControl max-age=31536000;
}

if ($uri ~ ^(\/|.*\/|.*\.html)$) {
    set $cacheControl no-cache;
}

more_set_headers "Cache-Control: $cacheControl";

set $styleSrc   "'unsafe-inline' 'self' https://${main_domain}";

set $connectSrc "'self' https://${main_domain} blob: wss://${api_domain} https://${sandbox_domain}";

set $fontSrc    "'self' data: https://${main_domain}";

set $imgSrc     "'self' data: blob: https://${main_domain}";

set $frameSrc   "'self' https://${sandbox_domain} blob:";

set $mediaSrc   "blob:";

set $childSrc   "https://${main_domain}";

set $workerSrc  "'self'";

set $scriptSrc  "'self' resource: https://${main_domain}";

set $frameAncestors "'self' https://${main_domain}";

set $unsafe 0;

if ($uri ~ ^\/(sheet|doc|presentation)\/inner.html.*$) { set $unsafe 1; }
if ($uri ~ ^\/common\/onlyoffice\/.*\/.*\.html.*$) { set $unsafe 1; }

if ($host != $sandbox_domain) { set $unsafe 0; }

if ($uri ~ ^\/unsafeiframe\/inner\.html.*$) { set $unsafe 1; }

# privileged contexts allow a few more rights than unprivileged contexts, though limits are still applied
if ($unsafe) {
    set $scriptSrc "'self' 'unsafe-eval' 'unsafe-inline' resource: https://${main_domain}";
}

more_set_headers "Content-Security-Policy: default-src 'none'; child-src $childSrc; worker-src $workerSrc; media-src $mediaSrc; style-src $styleSrc; script-src $scriptSrc; connect-src $connectSrc; font-src $fontSrc; img-src $imgSrc; frame-src $frameSrc; frame-ancestors $frameAncestors";

location ^~ /cryptpad_websocket {
    proxy_pass http://127.0.0.1:__PORT__;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    # WebSocket support (nginx 1.4)
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection upgrade;
}

location ^~ /customize.dist/ {
    # This is needed in order to prevent infinite recursion between /customize/ and the root
}

location ^~ /customize/ {
    rewrite ^/customize/(.*)$ $1 break;
    try_files /customize/$uri /customize.dist/$uri;
}

location ~ ^/api/.*$ {
    proxy_pass http://127.0.0.1:__PORT__;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_hide_header Cross-Origin-Resource-Policy;
    more_set_headers "Cross-Origin-Resource-Policy: cross-origin";
    proxy_hide_header Cross-Origin-Embedder-Policy;
    more_set_headers "Cross-Origin-Embedder-Policy: require-corp";
}

location ~ ^/(blob|block)/.*$ {
    if ($request_method = 'OPTIONS') {
        more_set_headers "Access-Control-Allow-Origin: ${allowed_origins}";
        more_set_headers "Access-Control-Allow-Credentials: true";
        more_set_headers "Access-Control-Allow-Methods: 'GET, POST, OPTIONS'";
        more_set_headers "Access-Control-Allow-Headers: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range";
        more_set_headers "Access-Control-Max-Age: 1728000";
        more_set_headers "Content-Type: 'application/octet-stream; charset=utf-8'";
        more_set_headers "Content-Length: 0";
        return 204;
    }
    more_set_headers "X-Content-Type-Options: nosniff";
    more_set_headers "Cache-Control: max-age=31536000'";
    more_set_headers "Access-Control-Allow-Origin: ${allowed_origins}";
    more_set_headers "Access-Control-Allow-Methods: 'GET, POST, OPTIONS'";
    more_set_headers "Access-Control-Allow-Headers: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range,Content-Length";
    more_set_headers "Access-Control-Expose-Headers: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range,Content-Length";
    try_files $uri =404;
}

location ~ ^/(register|login|recovery|settings|user|pad|drive|poll|slide|code|whiteboard|file|media|profile|contacts|todo|filepicker|debug|kanban|sheet|support|admin|notifications|teams|calendar|presentation|doc|form|report|convert|checkup|diagram)$ {
    rewrite ^(.*)$ $1/ redirect;
}

try_files /customize/www/$uri /customize/www/$uri/index.html /www/$uri /www/$uri/index.html /customize/$uri;