BIN: analyse-headers: add expect-ct and start referrer-policy

bin/.bin/webtest/analyse-headers

@@ -276,7 +276,7 @@ test_permissions-policy(){
 		wecho "The Permission-Policy header replaces the Feature-Policy and is \
 used to allow or disallow certain browser features or apis in the interest of \
 security.\n\n"
-		return 3
+		return 2
 	fi
 	local value="$(echo "$1" | cut -d ':' -f 2- | trimWhitespace)"
 }
@@ -287,7 +287,7 @@ test_feature-policy(){
 		wecho "The Feature-Policy header was used to allow or disallow certian \
 browser features or apis. It has been superceded by the permissions-policy
 header but should still be included for legacy browsers.\n\n"
-		return 3
+		return 2
 	fi
 	if ! echo "$headers" | grep -Eqi '^permissions-policy'; then
 		echo "Feature-Policy" | drawInBox
@@ -295,11 +295,42 @@ header but should still be included for legacy browsers.\n\n"
 browser features or apis. It has been superceded by the permissions-policy
 header but should still be included for legacy browsers.
 It has been highlighted because the Permissions-policy header wasn't found.\n\n"
-		return 3
+		return 2
 	fi
 	local value="$(echo "$1" | cut -d ':' -f 2- | trimWhitespace)"
 }
 
+test_expect-ct(){
+	local value="$(echo "$1" | cut -d ':' -f 2- | trimWhitespace)"
+	if [ -z "$1" ]; then
+		echo "Expect-CT" | drawInBox
+		wecho "When a site enables the Expect-CT header, they are requesting \
+that the browser check that any certificate for that site appears in public \
+CT logs.
+Initially, set the header without the enforce option but with report in order \
+to check for potential breakages\n\n"
+		return 2
+	elif ! echo "$value" | grep -q "enforce"; then
+		echo "Expect-CT" | drawInBox
+		wecho "The enforce directive was not found. It can be useful to omit \
+this whilst testing the header, but should be added once testing has finished.\n\n"
+		return 1
+	fi
+}
+
+test_referer-policy-ct(){
+	local value="$(echo "$1" | cut -d ':' -f 2- | trimWhitespace)"
+	if [ -z "$1" ]; then
+		echo "Referrer-Policy" | drawInBox
+		wecho "The Referrer-Policy HTTP header controls how much referrer \
+information (sent via the Referer header) should be included with requests.\n\n"
+		return 2
+	elif ! echo "$value" | grep -q "enforce"; then
+		# TODO: add checks for different referer policy opitons
+		return 1
+	fi
+}
+
 
 usage(){
 	echo -n "analyse-headers [OPTIONS]... URL
@@ -372,7 +403,8 @@ content-security-policy
 x-xss-protection
 x-content-type-options
 feature-policy
-permissions-policy"
+permissions-policy
+expect-ct"
 
 tmpfile="$(mktemp)"
 touch "$tmpfile"