Adding upstream version 43.0.upstream/43.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1403 insertions, 0 deletions

diff --git a/plugins/print-notifications/gsd-printer.c b/plugins/print-notifications/gsd-printer.c
new file mode 100644
index 0000000..573129b
--- /dev/null
+++ b/plugins/print-notifications/gsd-printer.c
@@ -0,0 +1,1403 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "config.h"
+#include <gio/gio.h>
+#include <stdlib.h>
+#include <libnotify/notify.h>
+#include <glib/gi18n.h>
+#include <glib/gstdio.h>
+#include <gtk/gtk.h>
+#include <cups/cups.h>
+#include <cups/ppd.h>
+
+static GDBusNodeInfo *npn_introspection_data = NULL;
+static GDBusNodeInfo *pdi_introspection_data = NULL;
+
+#define SCP_DBUS_NPN_NAME      "com.redhat.NewPrinterNotification"
+#define SCP_DBUS_NPN_PATH      "/com/redhat/NewPrinterNotification"
+#define SCP_DBUS_NPN_INTERFACE "com.redhat.NewPrinterNotification"
+
+#define SCP_DBUS_PDI_NAME      "com.redhat.PrinterDriversInstaller"
+#define SCP_DBUS_PDI_PATH      "/com/redhat/PrinterDriversInstaller"
+#define SCP_DBUS_PDI_INTERFACE "com.redhat.PrinterDriversInstaller"
+
+#define PACKAGE_KIT_BUS "org.freedesktop.PackageKit"
+#define PACKAGE_KIT_PATH "/org/freedesktop/PackageKit"
+#define PACKAGE_KIT_MODIFY_IFACE  "org.freedesktop.PackageKit.Modify"
+#define PACKAGE_KIT_QUERY_IFACE  "org.freedesktop.PackageKit.Query"
+
+#define SCP_BUS   "org.fedoraproject.Config.Printing"
+#define SCP_PATH  "/org/fedoraproject/Config/Printing"
+#define SCP_IFACE "org.fedoraproject.Config.Printing"
+
+#define MECHANISM_BUS "org.opensuse.CupsPkHelper.Mechanism"
+
+#define ALLOWED_CHARACTERS "abcdefghijklmnopqrtsuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_"
+
+#define DBUS_TIMEOUT           60000
+#define DBUS_INSTALL_TIMEOUT 3600000
+
+#define GNOME_SESSION_DBUS_NAME                 "org.gnome.SessionManager"
+#define GNOME_SESSION_DBUS_PATH                 "/org/gnome/SessionManager"
+#define GNOME_SESSION_DBUS_IFACE                "org.gnome.SessionManager"
+#define GNOME_SESSION_CLIENT_PRIVATE_DBUS_IFACE "org.gnome.SessionManager.ClientPrivate"
+
+#define GNOME_SESSION_PRESENCE_DBUS_PATH  "/org/gnome/SessionManager/Presence"
+#define GNOME_SESSION_PRESENCE_DBUS_IFACE "org.gnome.SessionManager.Presence"
+
+#if (CUPS_VERSION_MAJOR > 1) || (CUPS_VERSION_MINOR > 5)
+#define HAVE_CUPS_1_6 1
+#endif
+
+#ifndef HAVE_CUPS_1_6
+#define ippGetState(ipp) ipp->state
+#endif
+
+enum {
+  PRESENCE_STATUS_AVAILABLE = 0,
+  PRESENCE_STATUS_INVISIBLE,
+  PRESENCE_STATUS_BUSY,
+  PRESENCE_STATUS_IDLE,
+  PRESENCE_STATUS_UNKNOWN
+};
+
+static const gchar npn_introspection_xml[] =
+  "<node name='/com/redhat/NewPrinterNotification'>"
+  "  <interface name='com.redhat.NewPrinterNotification'>"
+  "    <method name='GetReady'>"
+  "    </method>"
+  "    <method name='NewPrinter'>"
+  "      <arg type='i' name='status' direction='in'/>"
+  "      <arg type='s' name='name' direction='in'/>"
+  "      <arg type='s' name='mfg' direction='in'/>"
+  "      <arg type='s' name='mdl' direction='in'/>"
+  "      <arg type='s' name='des' direction='in'/>"
+  "      <arg type='s' name='cmd' direction='in'/>"
+  "    </method>"
+  "  </interface>"
+  "</node>";
+
+static const gchar pdi_introspection_xml[] =
+  "<node name='/com/redhat/PrinterDriversInstaller'>"
+  "  <interface name='com.redhat.PrinterDriversInstaller'>"
+  "    <method name='InstallDrivers'>"
+  "      <arg type='s' name='mfg' direction='in'/>"
+  "      <arg type='s' name='mdl' direction='in'/>"
+  "      <arg type='s' name='cmd' direction='in'/>"
+  "    </method>"
+  "  </interface>"
+  "</node>";
+
+static GMainLoop *main_loop;
+static guint      npn_registration_id;
+static guint      pdi_registration_id;
+static guint      npn_owner_id;
+static guint      pdi_owner_id;
+
+static GHashTable *
+get_missing_executables (const gchar *ppd_file_name)
+{
+        GHashTable *executables = NULL;
+        GDBusProxy *proxy;
+        GVariant   *output;
+        GVariant   *array;
+        GError     *error = NULL;
+        gint        i;
+
+        if (!ppd_file_name)
+                return NULL;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               SCP_BUS,
+                                               SCP_PATH,
+                                               SCP_IFACE,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return NULL;
+        }
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "MissingExecutables",
+                                         g_variant_new ("(s)",
+                                                        ppd_file_name),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output && g_variant_n_children (output) == 1) {
+                array = g_variant_get_child_value (output, 0);
+                if (array) {
+                        executables = g_hash_table_new_full (g_str_hash, g_str_equal,
+                                                             g_free, NULL);
+                        for (i = 0; i < g_variant_n_children (array); i++) {
+                                g_hash_table_insert (executables,
+                                                     g_strdup (g_variant_get_string (
+                                                       g_variant_get_child_value (array, i),
+                                                       NULL)),
+                                                     NULL);
+                        }
+                }
+        }
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        g_object_unref (proxy);
+
+        return executables;
+}
+
+static GHashTable *
+find_packages_for_executables (GHashTable *executables)
+{
+        GHashTableIter  exec_iter;
+        GHashTable     *packages = NULL;
+        GDBusProxy     *proxy;
+        GVariant       *output;
+        gpointer        key, value;
+        GError         *error = NULL;
+
+        if (!executables || g_hash_table_size (executables) <= 0)
+                return NULL;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               PACKAGE_KIT_BUS,
+                                               PACKAGE_KIT_PATH,
+                                               PACKAGE_KIT_QUERY_IFACE,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return NULL;
+        }
+
+        packages = g_hash_table_new_full (g_str_hash, g_str_equal,
+                                          g_free, NULL);
+
+        g_hash_table_iter_init (&exec_iter, executables);
+        while (g_hash_table_iter_next (&exec_iter, &key, &value)) {
+                output = g_dbus_proxy_call_sync (proxy,
+                                                 "SearchFile",
+                                                 g_variant_new ("(ss)",
+                                                                (gchar *) key,
+                                                                ""),
+                                                 G_DBUS_CALL_FLAGS_NONE,
+                                                 DBUS_TIMEOUT,
+                                                 NULL,
+                                                 &error);
+
+                if (output) {
+                        gboolean  installed;
+                        gchar    *package;
+
+                        g_variant_get (output,
+                                       "(bs)",
+                                       &installed,
+                                       &package);
+                        if (!installed)
+                                g_hash_table_insert (packages, g_strdup (package), NULL);
+
+                        g_variant_unref (output);
+                } else {
+                        g_warning ("%s", error->message);
+                        g_error_free (error);
+                }
+        }
+
+        g_object_unref (proxy);
+
+        return packages;
+}
+
+static void
+install_packages (GHashTable *packages)
+{
+        GVariantBuilder  array_builder;
+        GHashTableIter   pkg_iter;
+        GDBusProxy      *proxy;
+        GVariant        *output;
+        gpointer         key, value;
+        GError          *error = NULL;
+
+        if (!packages || g_hash_table_size (packages) <= 0)
+                return;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               PACKAGE_KIT_BUS,
+                                               PACKAGE_KIT_PATH,
+                                               PACKAGE_KIT_MODIFY_IFACE,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return;
+        }
+
+        g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("as"));
+
+        g_hash_table_iter_init (&pkg_iter, packages);
+        while (g_hash_table_iter_next (&pkg_iter, &key, &value)) {
+                g_variant_builder_add (&array_builder,
+                                       "s",
+                                       (gchar *) key);
+        }
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "InstallPackageNames",
+                                         g_variant_new ("(uass)",
+                                                        0,
+                                                        &array_builder,
+                                                        "hide-finished"),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_INSTALL_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        g_object_unref (proxy);
+}
+
+static gchar *
+get_best_ppd (gchar *device_id,
+              gchar *device_make_and_model,
+              gchar *device_uri)
+{
+        GDBusProxy  *proxy;
+        GVariant    *output;
+        GVariant    *array;
+        GVariant    *tuple;
+        GError      *error = NULL;
+        gchar       *ppd_name = NULL;
+        gint         i, j;
+        static const char * const match_levels[] = {
+                   "exact-cmd",
+                   "exact",
+                   "close",
+                   "generic",
+                   "none"};
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               SCP_BUS,
+                                               SCP_PATH,
+                                               SCP_IFACE,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return NULL;
+        }
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "GetBestDrivers",
+                                         g_variant_new ("(sss)",
+                                                 device_id ? device_id : "",
+                                                 device_make_and_model ? device_make_and_model : "",
+                                                 device_uri ? device_uri : ""),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output && g_variant_n_children (output) >= 1) {
+                array = g_variant_get_child_value (output, 0);
+                if (array)
+                        for (j = 0; j < G_N_ELEMENTS (match_levels) && ppd_name == NULL; j++)
+                                for (i = 0; i < g_variant_n_children (array) && ppd_name == NULL; i++) {
+                                        tuple = g_variant_get_child_value (array, i);
+                                        if (tuple && g_variant_n_children (tuple) == 2) {
+                                                if (g_strcmp0 (g_variant_get_string (
+                                                                   g_variant_get_child_value (tuple, 1),
+                                                                   NULL), match_levels[j]) == 0)
+                                                        ppd_name = g_strdup (g_variant_get_string (
+                                                                                 g_variant_get_child_value (tuple, 0),
+                                                                                 NULL));
+                                        }
+                                }
+        }
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        g_object_unref (proxy);
+
+        return ppd_name;
+}
+
+static gchar *
+get_tag_value (const gchar *tag_string,
+               const gchar *tag_name)
+{
+        gchar **tag_string_splitted;
+        gchar  *tag_value = NULL;
+        gint    tag_name_length;
+        gint    i;
+
+        if (!tag_string ||
+            !tag_name)
+                return NULL;
+
+        tag_name_length = strlen (tag_name);
+        tag_string_splitted = g_strsplit (tag_string, ";", 0);
+        if (tag_string_splitted) {
+                for (i = 0; i < g_strv_length (tag_string_splitted); i++)
+                        if (g_ascii_strncasecmp (tag_string_splitted[i], tag_name, tag_name_length) == 0)
+                                if (strlen (tag_string_splitted[i]) > tag_name_length + 1)
+                                        tag_value = g_strdup (tag_string_splitted[i] + tag_name_length + 1);
+
+                g_strfreev (tag_string_splitted);
+        }
+
+        return tag_value;
+}
+
+static gchar *
+create_name (gchar *device_id)
+{
+        cups_dest_t *dests;
+        gboolean     already_present = FALSE;
+        gchar       *name = NULL;
+        gchar       *new_name = NULL;
+        gint         num_dests;
+        gint         name_index = 2;
+        gint         j;
+
+        g_return_val_if_fail (device_id != NULL, NULL);
+
+        name = get_tag_value (device_id, "mdl");
+        if (!name)
+                name = get_tag_value (device_id, "model");
+
+        if (name)
+                name = g_strcanon (name, ALLOWED_CHARACTERS, '-');
+
+        num_dests = cupsGetDests (&dests);
+        do {
+                if (already_present) {
+                        new_name = g_strdup_printf ("%s-%d", name, name_index);
+                        name_index++;
+                } else {
+                        new_name = g_strdup (name);
+                }
+
+                already_present = FALSE;
+                for (j = 0; j < num_dests; j++)
+                        if (g_strcmp0 (dests[j].name, new_name) == 0)
+                                already_present = TRUE;
+
+                if (already_present) {
+                        g_free (new_name);
+                } else {
+                        g_free (name);
+                        name = new_name;
+                }
+        } while (already_present);
+        cupsFreeDests (num_dests, dests);
+
+        return name;
+}
+
+static gboolean
+add_printer (gchar *printer_name,
+             gchar *device_uri,
+             gchar *ppd_name,
+             gchar *info,
+             gchar *location)
+{
+        cups_dest_t *dests;
+        GDBusProxy  *proxy;
+        gboolean     success = FALSE;
+        GVariant    *output;
+        GError      *error = NULL;
+        gint         num_dests;
+        gint         i;
+
+        if (!printer_name || !device_uri || !ppd_name)
+                return FALSE;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               MECHANISM_BUS,
+                                               "/",
+                                               MECHANISM_BUS,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return FALSE;
+        }
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "PrinterAdd",
+                                         g_variant_new ("(sssss)",
+                                                        printer_name,
+                                                        device_uri,
+                                                        ppd_name,
+                                                        info ? info : "",
+                                                        location ? location : ""),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        g_object_unref (proxy);
+
+        num_dests = cupsGetDests (&dests);
+        for (i = 0; i < num_dests; i++)
+                if (g_strcmp0 (dests[i].name, printer_name) == 0)
+                        success = TRUE;
+        cupsFreeDests (num_dests, dests);
+
+        return success;
+}
+
+static gboolean
+printer_set_enabled (const gchar *printer_name,
+                     gboolean     enabled)
+{
+        GDBusProxy *proxy;
+        gboolean    result = TRUE;
+        GVariant   *output;
+        GError     *error = NULL;
+
+        if (!printer_name)
+                return FALSE;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               MECHANISM_BUS,
+                                               "/",
+                                               MECHANISM_BUS,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return FALSE;
+        }
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "PrinterSetEnabled",
+                                         g_variant_new ("(sb)",
+                                                        printer_name,
+                                                        enabled),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                result = FALSE;
+        }
+
+        g_object_unref (proxy);
+
+        return result;
+}
+
+static gboolean
+printer_set_accepting_jobs (const gchar *printer_name,
+                            gboolean     accepting_jobs,
+                            const gchar *reason)
+{
+        GDBusProxy *proxy;
+        gboolean    result = TRUE;
+        GVariant   *output;
+        GError     *error = NULL;
+
+        if (!printer_name)
+                return FALSE;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               MECHANISM_BUS,
+                                               "/",
+                                               MECHANISM_BUS,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return FALSE;
+        }
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "PrinterSetAcceptJobs",
+                                         g_variant_new ("(sbs)",
+                                                        printer_name,
+                                                        accepting_jobs,
+                                                        reason ? reason : ""),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                result = FALSE;
+        }
+
+        g_object_unref (proxy);
+
+        return result;
+}
+
+static ipp_t *
+execute_maintenance_command (const char *printer_name,
+                             const char *command,
+                             const char *title)
+{
+        http_t *http;
+        GError *error = NULL;
+        ipp_t  *request = NULL;
+        ipp_t  *response = NULL;
+        gchar  *file_name = NULL;
+        char   *uri;
+        int     fd = -1;
+
+        http = httpConnectEncrypt (cupsServer (),
+                                   ippPort (),
+                                   cupsEncryption ());
+
+        if (!http)
+                return NULL;
+
+        request = ippNewRequest (IPP_PRINT_JOB);
+
+        uri = g_strdup_printf ("ipp://localhost/printers/%s",
+                               printer_name);
+
+        ippAddString (request,
+                      IPP_TAG_OPERATION,
+                      IPP_TAG_URI,
+                      "printer-uri",
+                      NULL,
+                      uri);
+
+        g_free (uri);
+
+        ippAddString (request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name",
+                      NULL, title);
+
+        ippAddString (request, IPP_TAG_JOB, IPP_TAG_MIMETYPE, "document-format",
+                      NULL, "application/vnd.cups-command");
+
+        fd = g_file_open_tmp ("ccXXXXXX", &file_name, &error);
+
+        if (fd != -1) {
+                FILE *file;
+
+                file = fdopen (fd, "w");
+                fprintf (file, "#CUPS-COMMAND\n");
+                fprintf (file, "%s\n", command);
+                fclose (file);
+
+                response = cupsDoFileRequest (http, request, "/", file_name);
+                g_unlink (file_name);
+        } else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        g_free (file_name);
+        httpClose (http);
+
+        return response;
+}
+
+static char *
+get_dest_attr (const char *dest_name,
+               const char *attr)
+{
+        cups_dest_t *dests;
+        int          num_dests;
+        cups_dest_t *dest;
+        const char  *value;
+        char        *ret;
+
+        if (dest_name == NULL)
+                return NULL;
+
+        ret = NULL;
+
+        num_dests = cupsGetDests (&dests);
+        if (num_dests < 1) {
+                g_debug ("Unable to get printer destinations");
+                return NULL;
+        }
+
+        dest = cupsGetDest (dest_name, NULL, num_dests, dests);
+        if (dest == NULL) {
+                g_debug ("Unable to find a printer named '%s'", dest_name);
+                goto out;
+        }
+
+        value = cupsGetOption (attr, dest->num_options, dest->options);
+        if (value == NULL) {
+                g_debug ("Unable to get %s for '%s'", attr, dest_name);
+                goto out;
+        }
+        ret = g_strdup (value);
+out:
+        cupsFreeDests (num_dests, dests);
+
+        return ret;
+}
+
+static void
+printer_autoconfigure (gchar *printer_name)
+{
+        gchar *commands;
+        gchar *commands_lowercase;
+        ipp_t *response = NULL;
+
+        if (!printer_name)
+                return;
+
+        commands = get_dest_attr (printer_name, "printer-commands");
+        commands_lowercase = g_ascii_strdown (commands, -1);
+
+        if (g_strrstr (commands_lowercase, "autoconfigure")) {
+                response = execute_maintenance_command (printer_name,
+                                                        "AutoConfigure",
+                                                        ("Automatic configuration"));
+                if (response) {
+                        if (ippGetState (response) == IPP_ERROR)
+                                g_warning ("An error has occured during automatic configuration of new printer.");
+                        ippDelete (response);
+                }
+        }
+        g_free (commands);
+        g_free (commands_lowercase);
+}
+
+/* Returns default page size for current locale */
+static const gchar *
+get_page_size_from_locale (void)
+{
+  if (g_str_equal (gtk_paper_size_get_default (), GTK_PAPER_NAME_LETTER))
+    return "Letter";
+  else
+    return "A4";
+}
+
+static void
+set_default_paper_size (const gchar *printer_name,
+                        const gchar *ppd_file_name)
+{
+        GDBusProxy      *proxy;
+        GVariant        *output;
+        GError          *error = NULL;
+        GVariantBuilder *builder;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               MECHANISM_BUS,
+                                               "/",
+                                               MECHANISM_BUS,
+                                               NULL,
+                                               &error);
+
+        if (!proxy) {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+                return;
+        }
+
+        /* Set default media size according to the locale
+         * FIXME: Handle more than A4 and Letter:
+         * https://bugzilla.gnome.org/show_bug.cgi?id=660769 */
+        builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
+        g_variant_builder_add (builder, "s", get_page_size_from_locale ());
+
+        output = g_dbus_proxy_call_sync (proxy,
+                                         "PrinterAddOption",
+                                         g_variant_new ("(ssas)",
+                                                        printer_name ? printer_name : "",
+                                                        "PageSize",
+                                                        builder),
+                                         G_DBUS_CALL_FLAGS_NONE,
+                                         DBUS_TIMEOUT,
+                                         NULL,
+                                         &error);
+
+        if (output) {
+                g_variant_unref (output);
+        } else {
+                if (!(error->domain == G_DBUS_ERROR &&
+                      (error->code == G_DBUS_ERROR_SERVICE_UNKNOWN ||
+                       error->code == G_DBUS_ERROR_UNKNOWN_METHOD)))
+                        g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        g_object_unref (proxy);
+}
+
+/*
+ * Setup new printer and returns TRUE if successful.
+ */
+static gboolean
+setup_printer (gchar *device_id,
+               gchar *device_make_and_model,
+               gchar *device_uri)
+{
+        gboolean  success = FALSE;
+        gchar    *ppd_name;
+        gchar    *printer_name;
+
+        ppd_name = get_best_ppd (device_id, device_make_and_model, device_uri);
+        printer_name = create_name (device_id);
+
+        if (!ppd_name || !printer_name || !device_uri) {
+                g_free (ppd_name);
+                g_free (printer_name);
+                return FALSE;
+        }
+
+        success = add_printer (printer_name, device_uri,
+                               ppd_name, NULL, NULL);
+
+        /* Set some options of the new printer */
+        if (success) {
+                const char *ppd_file_name;
+
+                printer_set_accepting_jobs (printer_name, TRUE, NULL);
+                printer_set_enabled (printer_name, TRUE);
+                printer_autoconfigure (printer_name);
+
+                ppd_file_name = cupsGetPPD (printer_name);
+
+                if (ppd_file_name) {
+                        GHashTable *executables;
+                        GHashTable *packages;
+
+                        set_default_paper_size (printer_name, ppd_file_name);
+
+                        executables = get_missing_executables (ppd_file_name);
+                        packages = find_packages_for_executables (executables);
+                        install_packages (packages);
+
+                        if (executables)
+                                g_hash_table_destroy (executables);
+                        if (packages)
+                                g_hash_table_destroy (packages);
+                        g_unlink (ppd_file_name);
+                }
+        }
+
+        g_free (printer_name);
+        g_free (ppd_name);
+
+        return success;
+}
+
+static void
+handle_method_call (GDBusConnection       *connection,
+                    const gchar           *sender,
+                    const gchar           *object_path,
+                    const gchar           *interface_name,
+                    const gchar           *method_name,
+                    GVariant              *parameters,
+                    GDBusMethodInvocation *invocation,
+                    gpointer               user_data)
+{
+        gchar *primary_text = NULL;
+        gchar *secondary_text = NULL;
+        gchar *name = NULL;
+        gchar *mfg = NULL;
+        gchar *mdl = NULL;
+        gchar *des = NULL;
+        gchar *cmd = NULL;
+        gchar *device = NULL;
+        gchar *device_id;
+        gchar *make_and_model;
+        gint   status = 0;
+
+        if (g_strcmp0 (method_name, "GetReady") == 0) {
+                /* Translators: We are configuring new printer */
+                primary_text = g_strdup (_("Configuring new printer"));
+                /* Translators: Just wait */
+                secondary_text = g_strdup (_("Please wait…"));
+
+                g_dbus_method_invocation_return_value (invocation,
+                                                       NULL);
+        }
+        else if (g_strcmp0 (method_name, "NewPrinter") == 0) {
+                if (g_variant_n_children (parameters) == 6) {
+                        g_variant_get (parameters, "(i&s&s&s&s&s)",
+                               &status,
+                               &name,
+                               &mfg,
+                               &mdl,
+                               &des,
+                               &cmd);
+                }
+
+                if (g_strrstr (name, "/")) {
+                        /* name is a URI, no queue was generated, because no suitable
+                         * driver was found
+                         */
+
+                        device_id = g_strdup_printf ("MFG:%s;MDL:%s;DES:%s;CMD:%s;", mfg, mdl, des, cmd);
+                        make_and_model = g_strdup_printf ("%s %s", mfg, mdl);
+
+                        if (!setup_printer (device_id, make_and_model, name)) {
+
+                                /* Translators: We have no driver installed for this printer */
+                                primary_text = g_strdup (_("Missing printer driver"));
+
+                                if ((mfg && mdl) || des) {
+                                        if (mfg && mdl)
+                                                device = g_strdup_printf ("%s %s", mfg, mdl);
+                                        else
+                                                device = g_strdup (des);
+
+                                        /* Translators: We have no driver installed for the device */
+                                        secondary_text = g_strdup_printf (_("No printer driver for %s."), device);
+                                        g_free (device);
+                                }
+                                else
+                                        /* Translators: We have no driver installed for this printer */
+                                        secondary_text = g_strdup (_("No driver for this printer."));
+                        }
+
+                        g_free (make_and_model);
+                        g_free (device_id);
+                }
+                else {
+                        /* name is the name of the queue which hal_lpadmin has set up
+                         * automatically.
+                         */
+
+                        const char *ppd_file_name;
+
+                        ppd_file_name = cupsGetPPD (name);
+                        if (ppd_file_name) {
+                                GHashTable *executables;
+                                GHashTable *packages;
+
+                                executables = get_missing_executables (ppd_file_name);
+                                packages = find_packages_for_executables (executables);
+                                install_packages (packages);
+
+                                if (executables)
+                                        g_hash_table_destroy (executables);
+                                if (packages)
+                                        g_hash_table_destroy (packages);
+                                g_unlink (ppd_file_name);
+                        }
+                }
+
+                g_dbus_method_invocation_return_value (invocation,
+                                                       NULL);
+        }
+        else if (g_strcmp0 (method_name, "InstallDrivers") == 0) {
+                GDBusProxy *proxy;
+                GError     *error = NULL;
+
+                if (g_variant_n_children (parameters) == 3) {
+                        g_variant_get (parameters, "(&s&s&s)",
+                               &mfg,
+                               &mdl,
+                               &cmd);
+                }
+
+                if (mfg && mdl)
+                        device = g_strdup_printf ("MFG:%s;MDL:%s;", mfg, mdl);
+
+                proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                                       G_DBUS_PROXY_FLAGS_NONE,
+                                                       NULL,
+                                                       PACKAGE_KIT_BUS,
+                                                       PACKAGE_KIT_PATH,
+                                                       PACKAGE_KIT_MODIFY_IFACE,
+                                                       NULL,
+                                                       &error);
+
+                if (!proxy) {
+                        g_warning ("%s", error->message);
+                        g_error_free (error);
+                }
+
+                if (proxy && device) {
+                        GVariantBuilder *builder;
+                        GVariant        *output;
+
+                        builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
+                        g_variant_builder_add (builder, "s", device);
+
+                        output = g_dbus_proxy_call_sync (proxy,
+                                                         "InstallPrinterDrivers",
+                                                         g_variant_new ("(uass)",
+                                                                        0,
+                                                                        builder,
+                                                                        "hide-finished"),
+                                                         G_DBUS_CALL_FLAGS_NONE,
+                                                         DBUS_INSTALL_TIMEOUT,
+                                                         NULL,
+                                                         &error);
+
+                        if (output) {
+                                g_variant_unref (output);
+                        } else {
+                                g_warning ("%s", error->message);
+                                g_error_free (error);
+                        }
+
+                        g_object_unref (proxy);
+                }
+
+                g_dbus_method_invocation_return_value (invocation,
+                                                       NULL);
+        }
+
+        if (primary_text) {
+                NotifyNotification *notification;
+                notification = notify_notification_new (primary_text,
+                                                        secondary_text,
+                                                        "printer-symbolic");
+                notify_notification_set_app_name (notification, _("Printers"));
+                notify_notification_set_hint_string (notification, "desktop-entry", "gnome-printers-panel");
+                notify_notification_set_hint (notification, "transient", g_variant_new_boolean (TRUE));
+
+                notify_notification_show (notification, NULL);
+                g_object_unref (notification);
+                g_free (primary_text);
+                g_free (secondary_text);
+        }
+}
+
+static const GDBusInterfaceVTable interface_vtable =
+{
+  handle_method_call,
+  NULL,
+  NULL
+};
+
+static void
+unregister_objects ()
+{
+        GDBusConnection *system_connection;
+        GError          *error = NULL;
+
+        system_connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
+
+        if (npn_registration_id > 0) {
+                g_dbus_connection_unregister_object (system_connection, npn_registration_id);
+                npn_registration_id = 0;
+        }
+
+        if (pdi_registration_id > 0) {
+                g_dbus_connection_unregister_object (system_connection, pdi_registration_id);
+                pdi_registration_id = 0;
+        }
+}
+
+static void
+unown_names ()
+{
+        if (npn_owner_id > 0) {
+                g_bus_unown_name (npn_owner_id);
+                npn_owner_id = 0;
+        }
+
+        if (pdi_owner_id > 0) {
+                g_bus_unown_name (pdi_owner_id);
+                pdi_owner_id = 0;
+        }
+}
+
+static void
+on_npn_bus_acquired (GDBusConnection *connection,
+                     const gchar     *name,
+                     gpointer         user_data)
+{
+        GError *error = NULL;
+
+        npn_registration_id = g_dbus_connection_register_object (connection,
+                                                                 SCP_DBUS_NPN_PATH,
+                                                                 npn_introspection_data->interfaces[0],
+                                                                 &interface_vtable,
+                                                                 NULL,
+                                                                 NULL,
+                                                                 &error);
+
+        if (npn_registration_id == 0) {
+                g_warning ("Failed to register object: %s\n", error->message);
+                g_error_free (error);
+        }
+}
+
+static void
+on_pdi_bus_acquired (GDBusConnection *connection,
+                     const gchar     *name,
+                     gpointer         user_data)
+{
+        GError *error = NULL;
+
+        pdi_registration_id = g_dbus_connection_register_object (connection,
+                                                                 SCP_DBUS_PDI_PATH,
+                                                                 pdi_introspection_data->interfaces[0],
+                                                                 &interface_vtable,
+                                                                 NULL,
+                                                                 NULL,
+                                                                 &error);
+
+        if (pdi_registration_id == 0) {
+                g_warning ("Failed to register object: %s\n", error->message);
+                g_error_free (error);
+        }
+}
+
+static void
+on_name_acquired (GDBusConnection *connection,
+                  const gchar     *name,
+                  gpointer         user_data)
+{
+}
+
+static void
+on_name_lost (GDBusConnection *connection,
+              const gchar     *name,
+              gpointer         user_data)
+{
+        unregister_objects ();
+}
+
+static void
+session_signal_handler (GDBusConnection  *connection,
+                        const gchar      *sender_name,
+                        const gchar      *object_path,
+                        const gchar      *interface_name,
+                        const gchar      *signal_name,
+                        GVariant         *parameters,
+                        gpointer          user_data)
+{
+        guint            new_status;
+
+        g_variant_get (parameters, "(u)", &new_status);
+
+        if (new_status == PRESENCE_STATUS_IDLE ||
+            new_status == PRESENCE_STATUS_AVAILABLE) {
+                unregister_objects ();
+                unown_names ();
+
+                if (new_status == PRESENCE_STATUS_AVAILABLE) {
+                        npn_owner_id = g_bus_own_name (G_BUS_TYPE_SYSTEM,
+                                                       SCP_DBUS_NPN_NAME,
+                                                       G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
+                                                       G_BUS_NAME_OWNER_FLAGS_REPLACE,
+                                                       on_npn_bus_acquired,
+                                                       on_name_acquired,
+                                                       on_name_lost,
+                                                       NULL,
+                                                       NULL);
+
+                        pdi_owner_id = g_bus_own_name (G_BUS_TYPE_SYSTEM,
+                                                       SCP_DBUS_PDI_NAME,
+                                                       G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
+                                                       G_BUS_NAME_OWNER_FLAGS_REPLACE,
+                                                       on_pdi_bus_acquired,
+                                                       on_name_acquired,
+                                                       on_name_lost,
+                                                       NULL,
+                                                       NULL);
+                }
+        }
+}
+
+static void
+client_signal_handler (GDBusConnection  *connection,
+                       const gchar      *sender_name,
+                       const gchar      *object_path,
+                       const gchar      *interface_name,
+                       const gchar      *signal_name,
+                       GVariant         *parameters,
+                       gpointer          user_data)
+{
+        GDBusProxy *proxy;
+        GError     *error = NULL;
+        GVariant   *output;
+
+        if (g_strcmp0 (signal_name, "QueryEndSession") == 0 ||
+            g_strcmp0 (signal_name, "EndSession") == 0) {
+                proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                                       G_DBUS_PROXY_FLAGS_NONE,
+                                                       NULL,
+                                                       sender_name,
+                                                       object_path,
+                                                       interface_name,
+                                                       NULL,
+                                                       &error);
+
+                if (proxy) {
+                        output = g_dbus_proxy_call_sync (proxy,
+                                                         "EndSessionResponse",
+                                                         g_variant_new ("(bs)", TRUE, ""),
+                                                         G_DBUS_CALL_FLAGS_NONE,
+                                                         -1,
+                                                         NULL,
+                                                         &error);
+
+                        if (output) {
+                                g_variant_unref (output);
+                        }
+                        else {
+                                g_warning ("%s", error->message);
+                                g_error_free (error);
+                        }
+
+                        g_object_unref (proxy);
+                }
+                else {
+                        g_warning ("%s", error->message);
+                        g_error_free (error);
+                }
+
+                if (g_strcmp0 (signal_name, "EndSession") == 0) {
+                        g_main_loop_quit (main_loop);
+                        g_debug ("Exiting gsd-printer");
+                }
+        }
+}
+
+static gchar *
+register_gnome_session_client (const gchar *app_id,
+                               const gchar *client_startup_id)
+{
+        GDBusProxy  *proxy;
+        GVariant    *output = NULL;
+        GError      *error = NULL;
+        const gchar *client_id = NULL;
+        gchar       *result = NULL;
+
+        proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                               G_DBUS_PROXY_FLAGS_NONE,
+                                               NULL,
+                                               GNOME_SESSION_DBUS_NAME,
+                                               GNOME_SESSION_DBUS_PATH,
+                                               GNOME_SESSION_DBUS_IFACE,
+                                               NULL,
+                                               &error);
+
+        if (proxy) {
+                output = g_dbus_proxy_call_sync (proxy,
+                                                 "RegisterClient",
+                                                 g_variant_new ("(ss)", app_id, client_startup_id),
+                                                 G_DBUS_CALL_FLAGS_NONE,
+                                                 -1,
+                                                 NULL,
+                                                 &error);
+
+                if (output) {
+                        g_variant_get (output, "(o)", &client_id);
+                        if (client_id)
+                                result = g_strdup (client_id);
+                        g_variant_unref (output);
+                }
+                else {
+                        g_warning ("%s", error->message);
+                        g_error_free (error);
+                }
+
+                g_object_unref (proxy);
+        }
+        else {
+                g_warning ("%s", error->message);
+                g_error_free (error);
+        }
+
+        return result;
+}
+
+int
+main (int argc, char *argv[])
+{
+  GDBusConnection *connection;
+  gboolean         client_signal_subscription_set = FALSE;
+  GError          *error = NULL;
+  guint            client_signal_subscription_id;
+  guint            session_signal_subscription_id;
+  gchar           *object_path;
+
+  bindtextdomain (GETTEXT_PACKAGE, GNOME_SETTINGS_LOCALEDIR);
+  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+  textdomain (GETTEXT_PACKAGE);
+  setlocale (LC_ALL, "");
+
+  npn_registration_id = 0;
+  pdi_registration_id = 0;
+  npn_owner_id = 0;
+  pdi_owner_id = 0;
+
+  notify_init ("gnome-settings-daemon-printer");
+
+  npn_introspection_data =
+          g_dbus_node_info_new_for_xml (npn_introspection_xml, &error);
+
+  if (npn_introspection_data == NULL) {
+          g_warning ("Error parsing introspection XML: %s\n", error->message);
+          g_error_free (error);
+          goto error;
+  }
+
+  pdi_introspection_data =
+          g_dbus_node_info_new_for_xml (pdi_introspection_xml, &error);
+
+  if (pdi_introspection_data == NULL) {
+          g_warning ("Error parsing introspection XML: %s\n", error->message);
+          g_error_free (error);
+          goto error;
+  }
+
+  connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
+
+  session_signal_subscription_id =
+    g_dbus_connection_signal_subscribe (connection,
+                                        NULL,
+                                        GNOME_SESSION_PRESENCE_DBUS_IFACE,
+                                        "StatusChanged",
+                                        GNOME_SESSION_PRESENCE_DBUS_PATH,
+                                        NULL,
+                                        G_DBUS_SIGNAL_FLAGS_NONE,
+                                        session_signal_handler,
+                                        NULL,
+                                        NULL);
+
+  object_path = register_gnome_session_client ("gsd-printer", "");
+  if (object_path) {
+          client_signal_subscription_id =
+                  g_dbus_connection_signal_subscribe (connection,
+                                                      NULL,
+                                                      GNOME_SESSION_CLIENT_PRIVATE_DBUS_IFACE,
+                                                      NULL,
+                                                      object_path,
+                                                      NULL,
+                                                      G_DBUS_SIGNAL_FLAGS_NONE,
+                                                      client_signal_handler,
+                                                      NULL,
+                                                      NULL);
+          client_signal_subscription_set = TRUE;
+  }
+
+  if (npn_owner_id == 0)
+          npn_owner_id = g_bus_own_name (G_BUS_TYPE_SYSTEM,
+                                         SCP_DBUS_NPN_NAME,
+                                         G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
+                                         G_BUS_NAME_OWNER_FLAGS_REPLACE,
+                                         on_npn_bus_acquired,
+                                         on_name_acquired,
+                                         on_name_lost,
+                                         NULL,
+                                         NULL);
+
+  if (pdi_owner_id == 0)
+          pdi_owner_id = g_bus_own_name (G_BUS_TYPE_SYSTEM,
+                                         SCP_DBUS_PDI_NAME,
+                                         G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
+                                         G_BUS_NAME_OWNER_FLAGS_REPLACE,
+                                         on_pdi_bus_acquired,
+                                         on_name_acquired,
+                                         on_name_lost,
+                                         NULL,
+                                         NULL);
+
+  main_loop = g_main_loop_new (NULL, FALSE);
+  g_main_loop_run (main_loop);
+
+  unregister_objects ();
+  unown_names ();
+
+  if (client_signal_subscription_set)
+          g_dbus_connection_signal_unsubscribe (connection, client_signal_subscription_id);
+  g_dbus_connection_signal_unsubscribe (connection, session_signal_subscription_id);
+
+  g_free (object_path);
+
+  g_dbus_node_info_unref (npn_introspection_data);
+  g_dbus_node_info_unref (pdi_introspection_data);
+
+  return 0;
+
+error:
+
+  if (npn_introspection_data)
+          g_dbus_node_info_unref (npn_introspection_data);
+
+  if (pdi_introspection_data)
+          g_dbus_node_info_unref (pdi_introspection_data);
+
+  return 1;
+}