From 6d444beb4392c2116533749fa869b6a1c4c6454a Mon Sep 17 00:00:00 2001
From: Michael Terry <michael.terry@canonical.com>
Date: Wed, 28 Aug 2013 12:37:47 -0400
Subject: Flesh out service to actually do what it says on the tin

---
 CMakeLists.txt                                  |  7 +++
 data/CMakeLists.txt                             | 10 ++++
 data/com.canonical.Unity.Greeter.Broadcast.conf | 21 ++++++++
 debian/unity-greeter-session-broadcast.install  |  1 +
 service/CMakeLists.txt                          | 10 +++-
 service/service.c                               | 70 ++++++++++++++++++++++++-
 6 files changed, 116 insertions(+), 3 deletions(-)
 create mode 100644 data/com.canonical.Unity.Greeter.Broadcast.conf

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 86192f6..97d6cad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,6 +46,13 @@ else()
 endif()
 message("Installing DBus services to ${DBUSSERVICEDIR}")
 
+if(${LOCAL_INSTALL})
+  set(DBUSSYSCONFDIR "${CMAKE_INSTALL_SYSCONFDIR}")
+else()
+  EXEC_PROGRAM(${PKG_CONFIG_EXECUTABLE} ARGS dbus-1 --variable sysconfdir OUTPUT_VARIABLE DBUSSYSCONFDIR)
+endif()
+message("Installing DBus policy files to ${DBUSSYSCONFDIR}")
+
 if(${LOCAL_INSTALL})
   set(DBUSIFACEDIR "${CMAKE_INSTALL_DATADIR}/dbus-1/interfaces/")
 else()
diff --git a/data/CMakeLists.txt b/data/CMakeLists.txt
index b784adb..d00c9ef 100644
--- a/data/CMakeLists.txt
+++ b/data/CMakeLists.txt
@@ -9,6 +9,16 @@ com.canonical.Unity.Greeter.Broadcast.xml
 DESTINATION ${DBUSIFACEDIR}
 )
 
+###########################
+# DBus Policy Files
+###########################
+
+install(
+FILES
+com.canonical.Unity.Greeter.Broadcast.conf
+DESTINATION ${DBUSSYSCONFDIR}/dbus-1/system.d
+)
+
 ###########################
 # Dbus Services
 ###########################
diff --git a/data/com.canonical.Unity.Greeter.Broadcast.conf b/data/com.canonical.Unity.Greeter.Broadcast.conf
new file mode 100644
index 0000000..8a8cfe6
--- /dev/null
+++ b/data/com.canonical.Unity.Greeter.Broadcast.conf
@@ -0,0 +1,21 @@
+<!-- ../system.conf have denied everything, so we just punch some holes -->
+
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+
+  <policy user="root">
+    <allow own="com.canonical.Unity.Greeter.Broadcast"/>
+    <allow send_destination="com.canonical.Unity.Greeter.Broadcast"/>
+  </policy>
+
+  <policy user="lightdm">
+    <allow send_destination="com.canonical.Unity.Greeter.Broadcast"/>
+  </policy>
+
+  <policy context="default">
+    <allow send_destination="com.canonical.Unity.Greeter.Broadcast"
+           send_interface="org.freedesktop.DBus.Introspectable"/>
+  </policy>
+
+</busconfig>
diff --git a/debian/unity-greeter-session-broadcast.install b/debian/unity-greeter-session-broadcast.install
index 46805f9..4a7f626 100644
--- a/debian/unity-greeter-session-broadcast.install
+++ b/debian/unity-greeter-session-broadcast.install
@@ -1,3 +1,4 @@
+etc/dbus-1
 usr/lib/*/unity-greeter-session-broadcast
 usr/share/dbus-1
 usr/share/glib-2.0
diff --git a/service/CMakeLists.txt b/service/CMakeLists.txt
index ac70f23..7e336d5 100644
--- a/service/CMakeLists.txt
+++ b/service/CMakeLists.txt
@@ -30,11 +30,19 @@ ${GOBJECT2_LIBRARIES}
 # Service Executable
 ###########################
 
+include_directories(
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_BINARY_DIR}
+)
+
 add_executable(service-exec service.c)
 
 set_target_properties(service-exec PROPERTIES OUTPUT_NAME "unity-greeter-session-broadcast-service")
 
-target_link_libraries(service-exec service-generated)
+target_link_libraries(service-exec
+service-generated
+${GIO2_LIBRARIES}
+)
 
 ###########################
 # Installation
diff --git a/service/service.c b/service/service.c
index 3c2f9e2..adf45b3 100644
--- a/service/service.c
+++ b/service/service.c
@@ -15,15 +15,81 @@
  *
  */
 
+#include <gio/gio.h>
+#include <unistd.h>
+#include "service-iface.h"
+
+static gboolean
+on_handle_request_application_start (ServiceIfaceComCanonicalUnityGreeterBroadcast *object,
+                                     GDBusMethodInvocation *invocation,
+                                     const gchar *arg_username,
+                                     const gchar *arg_appId)
+{
+    /* Simply pass the request on */
+    service_iface_com_canonical_unity_greeter_broadcast_emit_start_application (object,
+                                                                                arg_username,
+                                                                                arg_appId);
+    service_iface_com_canonical_unity_greeter_broadcast_complete_request_application_start (object,
+                                                                                            invocation);
+    return TRUE;
+}
+
+static void
+on_bus_acquired (GDBusConnection *connection,
+                 const gchar     *name,
+                 gpointer         user_data)
+{
+    GError *error = NULL;
+    ServiceIfaceComCanonicalUnityGreeterBroadcast *interface;
+
+    interface = (ServiceIfaceComCanonicalUnityGreeterBroadcast *)user_data;
+
+    if (!g_dbus_interface_skeleton_export (G_DBUS_INTERFACE_SKELETON (interface),
+                                           connection,
+                                           "/com/canonical/Unity/Greeter/Broadcast",
+                                           &error))
+    {
+        g_error ("Unable to export interface: %s, exiting", error->message);
+    }
+}
+
+static void
+on_name_lost (GDBusConnection *connection,
+              const gchar     *name,
+              gpointer         user_data)
+{
+    g_error ("Lost bus name, exiting");
+}
+
 int
 main (int argc, char * argv[])
 {
+    guint owner_id;
+    GMainLoop *loop;
+    ServiceIfaceComCanonicalUnityGreeterBroadcast *interface;
 
+    interface = service_iface_com_canonical_unity_greeter_broadcast_skeleton_new ();
 
+    g_signal_connect (interface,
+                      "handle-request-application-start",
+                      G_CALLBACK (on_handle_request_application_start),
+                      NULL);
 
+    owner_id = g_bus_own_name (G_BUS_TYPE_SYSTEM,
+                               "com.canonical.Unity.Greeter.Broadcast",
+                               G_BUS_NAME_OWNER_FLAGS_NONE,
+                               on_bus_acquired,
+                               NULL,
+                               on_name_lost,
+                               g_object_ref (interface),
+                               g_object_unref);
 
+    loop = g_main_loop_new (NULL, FALSE);
+    g_main_loop_run (loop);
 
+    g_bus_unown_name (owner_id);
+    g_object_unref (interface);
+    g_object_unref (loop);
 
-
-	return 0;
+    return 0;
 }
-- 
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