Add policykit configuration to allow setting as user

When the script is installed as /usr/local/bin/brightness, the policykit
configuration files allow the user sitting in front of the computer to
set the brightness as a non-privileged user.

Signed-off-by: Olivier Gayot <olivier.gayot@sigexec.com>

2 files changed, 30 insertions, 0 deletions

diff --git a/polkit-1/actions/com.sigexec.polkit.set-brightness.policy b/polkit-1/actions/com.sigexec.polkit.set-brightness.policy
new file mode 100644
index 0000000..352e8bf
--- /dev/null
+++ b/polkit-1/actions/com.sigexec.polkit.set-brightness.policy
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD polkit Policy Configuration 1.0//EN"
+"http://www.freedesktop.org/software/polkit/policyconfig-1.dtd">
+<policyconfig>
+
+  <vendor>Olivier Gayot</vendor>
+  <vendor_url>http://sigexec.com</vendor_url>
+
+  <action id="com.sigexec.polkit.set-brightness">
+    <description>Set the brightness of the monitor</description>
+    <description xml:lang="fr">Règle la luminosité de l'écran</description>
+    <defaults>
+      <allow_any>no</allow_any>
+      <allow_inactive>no</allow_inactive>
+      <allow_active>auth_admin_keep</allow_active>
+    </defaults>
+    <annotate key="org.freedesktop.policykit.exec.path">/usr/local/bin/brightness</annotate>
+    <annotate key="org.freedesktop.policykit.exec.argv1">set</annotate>
+  </action>
+
+</policyconfig>
diff --git a/polkit-1/rules/90-set-brightness.rules b/polkit-1/rules/90-set-brightness.rules
new file mode 100644
index 0000000..f8b158a
--- /dev/null
+++ b/polkit-1/rules/90-set-brightness.rules
@@ -0,0 +1,9 @@
+polkit.addRule(function(action, subject) {
+    if (1
+	    && action.id == "com.sigexec.polkit.set-brightness"
+	    && subject.seat == "seat0"
+       )
+    {
+	return polkit.Result.YES;
+    }
+});