From 271d616cb155460d3c364de0ace1fbc37419a3ec Mon Sep 17 00:00:00 2001
From: Patrick Spek <p.spek@tyil.nl>
Date: Tue, 22 Oct 2019 12:20:04 +0200
Subject: Attempt to do redirection from lighttpd

---
 .docker/envvars.sh    | 14 ++++++++++++++
 .docker/lighttpd.conf | 11 ++++++++++-
 Dockerfile            |  7 +++++--
 3 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 .docker/envvars.sh

diff --git a/.docker/envvars.sh b/.docker/envvars.sh
new file mode 100644
index 0000000..71f47e1
--- /dev/null
+++ b/.docker/envvars.sh
@@ -0,0 +1,14 @@
+#! /usr/bin/env sh
+
+main()
+{
+	mkvar intendedHost "${INTENDED_HOST:-localhost}"
+	mkvar intendedHostProto "${INTENDED_HOST_PROTO:-http}"
+}
+
+mkvar()
+{
+	printf 'var.%s="%s"\n' "$1" "$2"
+}
+
+main "$@"
diff --git a/.docker/lighttpd.conf b/.docker/lighttpd.conf
index 132ad29..c8f6f72 100644
--- a/.docker/lighttpd.conf
+++ b/.docker/lighttpd.conf
@@ -1,4 +1,7 @@
-server.modules += ( "mod_setenv" )
+server.modules += (
+	"mod_setenv",
+	"mod_redirect",
+)
 
 setenv.add-response-header = (
 	"Content-Security-Policy" => "default-src 'self'; img-src https:; object-src 'self'; script-src 'self'; style-src 'self'",
@@ -8,3 +11,9 @@ setenv.add-response-header = (
 	"X-Permitted-Cross-Domain-Policies" => "none",
 	"X-XSS-Protection" => "1; mode=block",
 )
+
+include_shell "/usr/local/bin/lighttpd-env.sh"
+
+$HTTP["host"] != var.intendedHost {
+	url.redirect = ( "^/(.*)" => var.intendedHostProto + "://" + var.intendedHost + "/$1" )
+}
diff --git a/Dockerfile b/Dockerfile
index 4db3107..cd97e8c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,7 @@
-FROM tyil/http-static
+FROM registry.gitlab.com/tyil/docker-http-static:latest
 
 COPY _site /var/www
-COPY .docker/lighttpd.conf /etc/lighttpd/custom.conf
+COPY .docker/envvars.sh /usr/local/bin/lighttpd-env.sh
+COPY .docker/lighttpd.conf /etc/lighttpd/custom.d/lighttpd.conf
+
+RUN chmod +x /usr/local/bin/lighttpd-env.sh
-- 
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