#
# Disable access to the entire file system except for the directories that
# are explicitly allowed later.
#
# This currently breaks the configurations that come with some web application
# Debian packages.
#
#<Directory />
#   AllowOverride None
#   Require all denied
#</Directory>


# Changing the following options will not really affect the security of the
# server, but might make attacks slightly more difficult in some cases.

#
# ServerTokens
# This directive configures what you return as the Server HTTP response
# Header. The default is 'Full' which sends information about the OS-Type
# and compiled in modules.
# Set to one of:  Full | OS | Minimal | Minor | Major | Prod
# where Full conveys the most information, and Prod the least.
#ServerTokens Minimal
ServerTokens Prod
#ServerTokens Full

#
# Optionally add a line containing the server version and virtual host
# name to server-generated pages (internal error documents, FTP directory
# listings, mod_status and mod_info output etc., but not CGI generated
# documents or custom error documents).
# Set to "EMail" to also include a mailto: link to the ServerAdmin.
# Set to one of:  On | Off | EMail
#ServerSignature Off
ServerSignature On

#
# Allow TRACE method
#
# Set to "extended" to also reflect the request body (only for testing and
# diagnostic purposes).
#
# Set to one of:  On | Off | extended
TraceEnable Off
#TraceEnable On

#
# Forbid access to version control directories
#
# If you use version control systems in your document root, you should
# probably deny access to their directories. For example, for subversion:
#
#<DirectoryMatch "/\.svn">
#   Require all denied
#</DirectoryMatch>

#
# Setting this header will prevent MSIE from interpreting files as something
# else than declared by the content type in the HTTP headers.
# Requires mod_headers to be enabled.
#
Header always set X-Content-Type-Options: "nosniff"

#
# Setting this header will prevent other sites from embedding pages from this
# site as frames. This defends against clickjacking attacks.
# Requires mod_headers to be enabled.
#
Header always set X-Frame-Options: "sameorigin"

# Enable reflective XSS protection and block response when detecting an attack
Header always set X-Xss-Protection "1; mode=block"

# Allow images, scripts, AJAX, form actions, and CSS from the same origin,
# and disallow any other resources to load (eg object, frame, media, etc).
# More info: <https://content-security-policy.com/>
Header always set Content-Security-Policy "default-src 'none'; script-src 'self'; connect-src 'self'; img-src 'self'; style-src 'self'; base-uri 'self'; form-action 'self';"

# Forbid use of browser features
# More info: <https://www.w3.org/TR/permissions-policy-1/>
# <https://github.com/w3c/webappsec-permissions-policy/blob/master/features.md>
Header always set Permissions-Policy "accelerometer(), ambient-light-sensor(), autoplay(), battery(), camera(), cross-origin-isolated(), display-capture(), document-domain(), encrypted-media(), execution-while-not-rendered(), execution-while-out-of-viewport(), fullscreen(), geolocation(), gyroscope(),  layout-animations(), legacy-image-formats(), magnetometer(), microphone(), midi(), oversized-images(), navigation-override(), payment(), picture-in-picture(), publickey-credentials-get(), screen-wake-lock(), sync-xhr(), usb(), vr(), wake-lock(), web-share(), xr-spatial-tracking()"

# Do not send the referrer header when navigating from HTTPS to HTTP,
# but always send the full URL when navigating from HTTP to any origin.
# More info: <https://scotthelme.co.uk/a-new-security-header-referrer-policy/>
Header always set Referrer-Policy "no-referrer-when-downgrade"

# enable Strict Transport Security
Header always set Strict-Transport-Security "max-age=63072000;includeSubdomains;preload" "expr=%{HTTPS} == 'on'"

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet