| #pragma once |
| |
| #include "bmcweb_config.h" |
| |
| #include "http_request.hpp" |
| #include "http_response.hpp" |
| |
| inline void addSecurityHeaders(const crow::Request& req [[maybe_unused]], |
| crow::Response& res) |
| { |
| /* |
| TODO(ed) these should really check content types. for example, |
| X-Content-Type-Options header doesn't make sense when retrieving a JSON or |
| javascript file. It doesn't hurt anything, it's just ugly. |
| */ |
| using bf = boost::beast::http::field; |
| |
| // Recommendations from https://owasp.org/www-project-secure-headers/ |
| // https://owasp.org/www-project-secure-headers/ci/headers_add.json |
| res.addHeader(bf::strict_transport_security, "max-age=31536000; " |
| "includeSubdomains"); |
| res.addHeader(bf::x_frame_options, "DENY"); |
| |
| res.addHeader(bf::pragma, "no-cache"); |
| res.addHeader(bf::cache_control, "no-store, max-age=0"); |
| |
| res.addHeader("X-Content-Type-Options", "nosniff"); |
| |
| res.addHeader("Referrer-Policy", "no-referrer"); |
| res.addHeader("Permissions-Policy", "accelerometer=()," |
| "ambient-light-sensor=()," |
| "autoplay=()," |
| "battery=()," |
| "camera=()," |
| "display-capture=()," |
| "document-domain=()," |
| "encrypted-media=()," |
| "fullscreen=()," |
| "gamepad=()," |
| "geolocation=()," |
| "gyroscope=()," |
| "layout-animations=(self)," |
| "legacy-image-formats=(self)," |
| "magnetometer=()," |
| "microphone=()," |
| "midi=()," |
| "oversized-images=(self)," |
| "payment=()," |
| "picture-in-picture=()," |
| "publickey-credentials-get=()," |
| "speaker-selection=()," |
| "sync-xhr=(self)," |
| "unoptimized-images=(self)," |
| "unsized-media=(self)," |
| "usb=()," |
| "screen-wak-lock=()," |
| "web-share=()," |
| "xr-spatial-tracking=()"); |
| res.addHeader("X-Permitted-Cross-Domain-Policies", "none"); |
| res.addHeader("Cross-Origin-Embedder-Policy", "require-corp"); |
| res.addHeader("Cross-Origin-Opener-Policy", "same-origin"); |
| res.addHeader("Cross-Origin-Resource-Policy", "same-origin"); |
| if (bmcwebInsecureDisableXssPrevention == 0) |
| { |
| res.addHeader("Content-Security-Policy", "default-src 'none'; " |
| "img-src 'self' data:; " |
| "font-src 'self'; " |
| "style-src 'self'; " |
| "script-src 'self'; " |
| "connect-src 'self' wss:; " |
| "form-action 'none'; " |
| "frame-ancestors 'none'; " |
| "object-src 'none'; " |
| "base-uri 'none' "); |
| // The KVM currently needs to load images from base64 encoded |
| // strings. img-src 'self' data: is used to allow that. |
| // https://stackoverflow.com/questions/18447970/content-security-polic |
| // y-data-not-working-for-base64-images-in-chrome-28 |
| } |
| else |
| { |
| // If XSS is disabled, we need to allow loading from addresses other |
| // than self, as the BMC will be hosted elsewhere. |
| res.addHeader("Content-Security-Policy", "default-src 'none'; " |
| "img-src *; " |
| "font-src *; " |
| "style-src *; " |
| "script-src *; " |
| "connect-src *; " |
| "form-action *; " |
| "frame-ancestors *; " |
| "object-src *; " |
| "base-uri *"); |
| |
| std::string_view origin = req.getHeaderValue("Origin"); |
| res.addHeader(bf::access_control_allow_origin, origin); |
| res.addHeader(bf::access_control_allow_methods, "GET, " |
| "POST, " |
| "PUT, " |
| "PATCH, " |
| "DELETE"); |
| res.addHeader(bf::access_control_allow_credentials, "true"); |
| res.addHeader(bf::access_control_allow_headers, "Origin, " |
| "Content-Type, " |
| "Accept, " |
| "Cookie, " |
| "X-XSRF-TOKEN"); |
| } |
| } |