[gnome-shell] thunderbolt: honor boltd's AuthMode property

[Florian Müllner <fmuellner src gnome org>]

commit 190a31dd5f34b83a93f4472af8812328f3f1971f
Author: Christian Kellner <christian kellner me>
Date:   Mon Mar 5 21:05:32 2018 +0100

    thunderbolt: honor boltd's AuthMode property
    
    boltd 0.2 gained a property that indicates if it is authorizing
    devices or not. If it indeed is not authorizing then we wont
    try to enroll new devices because that would otherwise lead to
    and error.

 js/ui/status/thunderbolt.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/js/ui/status/thunderbolt.js b/js/ui/status/thunderbolt.js
index e12131302..6c97ac832 100644
--- a/js/ui/status/thunderbolt.js
+++ b/js/ui/status/thunderbolt.js
@@ -17,6 +17,7 @@ const PanelMenu = imports.ui.panelMenu;
 const BoltClientInterface = '<node> \
   <interface name="org.freedesktop.bolt1.Manager"> \
     <property name="Probing" type="b" access="read"></property> \
+    <property name="AuthMode" type="s" access="readwrite"></property> \
     <method name="EnrollDevice"> \
       <arg type="s" name="uid" direction="in"> </arg> \
       <arg type="s" name="policy" direction="in"> </arg> \
@@ -73,6 +74,9 @@ var AuthFlags = {
     NONE: 'none',
 };
 
+var AuthMode = {
+    DISABLED: 'disabled',
+    ENABLED: 'enabled'
 };
 
 const BOLT_DBUS_NAME = 'org.freedesktop.bolt';
@@ -150,6 +154,10 @@ var Client = new Lang.Class({
                                             path);
            callback(device, null);
        });
+    },
+
+    get authMode () {
+        return this._proxy.AuthMode;
     }
 
 });
@@ -183,6 +191,14 @@ var AuthRobot = new Lang.Class({
        if (dev.Status !== Status.CONNECTED)
            return;
 
+        /* check if authorization is enabled in the daemon. if not
+         * we won't even bother authorizing, because we will only
+         * get an error back. The exact contents of AuthMode might 
+         * change in the future, but must contain AuthMode.ENABLED
+         * if it is enabled. */
+        if (!cli.authMode.split('|').includes(AuthMode.ENABLED))
+            return;
+        
        /* check if we should enroll the device */
        let res = [false];
        this.emit('enroll-device', dev, res);