37 lines
992 B
PHP
37 lines
992 B
PHP
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<?php
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namespace BookStack\Http\Middleware;
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use Closure;
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use Symfony\Component\HttpFoundation\Response;
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/**
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* Sets CSP headers to restrict the hosts that BookStack can be
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* iframed within. Also adjusts the cookie samesite options
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* so that cookies will operate in the third-party context.
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*/
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class ControlIframeSecurity
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{
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/**
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* Handle an incoming request.
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*
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* @param \Illuminate\Http\Request $request
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* @param \Closure $next
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* @return mixed
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*/
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public function handle($request, Closure $next)
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{
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$iframeHosts = collect(explode(' ', config('app.iframe_hosts', '')))->filter();
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if ($iframeHosts->count() > 0) {
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config()->set('session.same_site', 'none');
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}
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$iframeHosts->prepend("'self'");
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$response = $next($request);
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$cspValue = 'frame-ancestors ' . $iframeHosts->join(' ');
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$response->headers->set('Content-Security-Policy', $cspValue);
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return $response;
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}
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}
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