crowd module: fix OpenID server

pkgs/servers/atlassian/crowd.nix

@@ -1,4 +1,5 @@
-{ stdenv, fetchurl, home ? "/var/lib/crowd" }:
+{ stdenv, fetchurl, home ? "/var/lib/crowd"
+, port ? 8092, proxyUrl ? null, openidPassword ? "WILL_NEVER_BE_SET" }:
 
 stdenv.mkDerivation rec {
   name = "atlassian-crowd-${version}";
@@ -18,9 +19,22 @@ stdenv.mkDerivation rec {
     rm -rf apache-tomcat/work
     ln -s /run/atlassian-crowd/work apache-tomcat/work
 
+    ln -s /run/atlassian-crowd/database database
+
     substituteInPlace apache-tomcat/bin/startup.sh --replace start run
 
     echo "crowd.home=${home}" > crowd-webapp/WEB-INF/classes/crowd-init.properties
+    substituteInPlace build.properties \
+      --replace "openidserver.url=http://localhost:8095/openidserver" \
+                "openidserver.url=http://localhost:${toString port}/openidserver"
+    substituteInPlace crowd-openidserver-webapp/WEB-INF/classes/crowd.properties \
+      --replace "http://localhost:8095/" \
+                "http://localhost:${toString port}/"
+    sed -r -i crowd-openidserver-webapp/WEB-INF/classes/crowd.properties \
+      -e 's,application.password\s+password,application.password ${openidPassword},'
+  '' + stdenv.lib.optionalString (proxyUrl != null) ''
+    sed -i crowd-openidserver-webapp/WEB-INF/classes/crowd.properties \
+      -e 's,http://localhost:${toString port}/openidserver,${proxyUrl}/openidserver,'
   '';
 
   installPhase = ''