Adding upstream version 1:43.6.upstream/1%43.6upstream

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

1 files changed, 747 insertions, 0 deletions

diff --git a/panels/printers/pp-host.c b/panels/printers/pp-host.c
new file mode 100644
index 0000000..a31a606
--- /dev/null
+++ b/panels/printers/pp-host.c
@@ -0,0 +1,747 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright 2012  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 of the License, 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/>.
+ *
+ * Author: Marek Kasik <mkasik@redhat.com>
+ */
+
+#include "config.h"
+
+#include "pp-host.h"
+
+#include <glib/gi18n.h>
+
+#define BUFFER_LENGTH 1024
+
+typedef struct
+{
+  gchar *hostname;
+  gint   port;
+} PpHostPrivate;
+
+G_DEFINE_TYPE_WITH_PRIVATE (PpHost, pp_host, G_TYPE_OBJECT);
+
+enum {
+  PROP_0 = 0,
+  PROP_HOSTNAME,
+  PROP_PORT,
+};
+
+enum {
+  AUTHENTICATION_REQUIRED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static void
+pp_host_finalize (GObject *object)
+{
+  PpHost *self = PP_HOST (object);
+  PpHostPrivate *priv = pp_host_get_instance_private (self);
+
+  g_clear_pointer (&priv->hostname, g_free);
+
+  G_OBJECT_CLASS (pp_host_parent_class)->finalize (object);
+}
+
+static void
+pp_host_get_property (GObject    *object,
+                      guint       prop_id,
+                      GValue     *value,
+                      GParamSpec *param_spec)
+{
+  PpHost *self = PP_HOST (object);
+  PpHostPrivate *priv = pp_host_get_instance_private (self);
+
+  switch (prop_id)
+    {
+      case PROP_HOSTNAME:
+        g_value_set_string (value, priv->hostname);
+        break;
+      case PROP_PORT:
+        g_value_set_int (value, priv->port);
+        break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
+                                           prop_id,
+                                           param_spec);
+      break;
+    }
+}
+
+static void
+pp_host_set_property (GObject      *object,
+                      guint         prop_id,
+                      const GValue *value,
+                      GParamSpec   *param_spec)
+{
+  PpHost *self = PP_HOST (object);
+  PpHostPrivate *priv = pp_host_get_instance_private (self);
+
+  switch (prop_id)
+    {
+      case PROP_HOSTNAME:
+        g_free (priv->hostname);
+        priv->hostname = g_value_dup_string (value);
+        break;
+      case PROP_PORT:
+        priv->port = g_value_get_int (value);
+        break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
+                                           prop_id,
+                                           param_spec);
+        break;
+    }
+}
+
+static void
+pp_host_class_init (PpHostClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->set_property = pp_host_set_property;
+  gobject_class->get_property = pp_host_get_property;
+  gobject_class->finalize = pp_host_finalize;
+
+  g_object_class_install_property (gobject_class, PROP_HOSTNAME,
+    g_param_spec_string ("hostname",
+                         "Hostname",
+                         "The hostname",
+                         NULL,
+                         G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_PORT,
+    g_param_spec_int ("port",
+                      "Port",
+                      "The port",
+                      -1, G_MAXINT32, PP_HOST_UNSET_PORT,
+                      G_PARAM_READWRITE));
+
+  signals[AUTHENTICATION_REQUIRED] =
+    g_signal_new ("authentication-required",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL, NULL,
+                  G_TYPE_NONE, 0);
+}
+
+static void
+pp_host_init (PpHost *self)
+{
+  PpHostPrivate *priv = pp_host_get_instance_private (self);
+  priv->port = PP_HOST_UNSET_PORT;
+}
+
+PpHost *
+pp_host_new (const gchar *hostname)
+{
+  return g_object_new (PP_TYPE_HOST,
+                       "hostname", hostname,
+                       NULL);
+}
+
+static gchar **
+line_split (gchar *line)
+{
+  gboolean          escaped = FALSE;
+  gboolean          quoted = FALSE;
+  gboolean          in_word = FALSE;
+  gchar           **words = NULL;
+  gchar           **result = NULL;
+  g_autofree gchar *buffer = NULL;
+  gchar             ch;
+  gint              n = 0;
+  gint              i, j = 0, k = 0;
+
+  if (line)
+    {
+      n = strlen (line);
+      words = g_new0 (gchar *, n + 1);
+      buffer = g_new0 (gchar, n + 1);
+
+      for (i = 0; i < n; i++)
+        {
+          ch = line[i];
+
+          if (escaped)
+            {
+              buffer[k++] = ch;
+              escaped = FALSE;
+              continue;
+            }
+
+          if (ch == '\\')
+            {
+              in_word = TRUE;
+              escaped = TRUE;
+              continue;
+            }
+
+          if (in_word)
+            {
+              if (quoted)
+                {
+                  if (ch == '"')
+                    quoted = FALSE;
+                  else
+                    buffer[k++] = ch;
+                }
+              else if (g_ascii_isspace (ch))
+                {
+                  words[j++] = g_strdup (buffer);
+                  memset (buffer, 0, n + 1);
+                  k = 0;
+                  in_word = FALSE;
+                }
+              else if (ch == '"')
+                quoted = TRUE;
+              else
+                buffer[k++] = ch;
+            }
+          else
+            {
+              if (ch == '"')
+                {
+                  in_word = TRUE;
+                  quoted = TRUE;
+                }
+              else if (!g_ascii_isspace (ch))
+                {
+                  in_word = TRUE;
+                  buffer[k++] = ch;
+                }
+            }
+        }
+    }
+
+  if (buffer && buffer[0] != '\0')
+    words[j++] = g_strdup (buffer);
+
+  result = g_strdupv (words);
+  g_strfreev (words);
+
+  return result;
+}
+
+static void
+_pp_host_get_snmp_devices_thread (GTask        *task,
+                                  gpointer      source_object,
+                                  gpointer      task_data,
+                                  GCancellable *cancellable)
+{
+  PpHost           *self = source_object;
+  PpHostPrivate    *priv = pp_host_get_instance_private (self);
+  g_autoptr(GPtrArray) devices = NULL;
+  g_autoptr(GError) error = NULL;
+  g_auto(GStrv)     argv = NULL;
+  g_autofree gchar *stdout_string = NULL;
+  gint              exit_status;
+
+  devices = g_ptr_array_new_with_free_func (g_object_unref);
+
+  argv = g_new0 (gchar *, 3);
+  argv[0] = g_strdup ("/usr/lib/cups/backend/snmp");
+  argv[1] = g_strdup (priv->hostname);
+
+  /* Use SNMP to get printer's informations */
+  g_spawn_sync (NULL,
+                argv,
+                NULL,
+                G_SPAWN_STDERR_TO_DEV_NULL,
+                NULL,
+                NULL,
+                &stdout_string,
+                NULL,
+                &exit_status,
+                &error);
+
+  if (exit_status == 0 && stdout_string)
+    {
+      g_auto(GStrv)     printer_informations = NULL;
+      gint              length;
+
+      printer_informations = line_split (stdout_string);
+      length = g_strv_length (printer_informations);
+
+      if (length >= 4)
+        {
+          g_autofree gchar *device_name = NULL;
+          gboolean is_network_device;
+          PpPrintDevice *device;
+
+          device_name = g_strdup (printer_informations[3]);
+          g_strcanon (device_name, ALLOWED_CHARACTERS, '-');
+          is_network_device = g_strcmp0 (printer_informations[0], "network") == 0;
+
+          device = g_object_new (PP_TYPE_PRINT_DEVICE,
+                                 "is-network-device", is_network_device,
+                                 "device-uri", printer_informations[1],
+                                 "device-make-and-model", printer_informations[2],
+                                 "device-info", printer_informations[3],
+                                 "acquisition-method", ACQUISITION_METHOD_SNMP,
+                                 "device-name", device_name,
+                                 NULL);
+
+          if (length >= 5 && printer_informations[4][0] != '\0')
+            g_object_set (device, "device-id", printer_informations[4], NULL);
+
+          if (length >= 6 && printer_informations[5][0] != '\0')
+            g_object_set (device, "device-location", printer_informations[5], NULL);
+
+          g_ptr_array_add (devices, device);
+        }
+    }
+
+  g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
+}
+
+void
+pp_host_get_snmp_devices_async (PpHost              *self,
+                                GCancellable        *cancellable,
+                                GAsyncReadyCallback  callback,
+                                gpointer             user_data)
+{
+  g_autoptr(GTask) task = NULL;
+
+  task = g_task_new (self, cancellable, callback, user_data);
+  g_task_run_in_thread (task, _pp_host_get_snmp_devices_thread);
+}
+
+GPtrArray *
+pp_host_get_snmp_devices_finish (PpHost        *self,
+                                 GAsyncResult  *res,
+                                 GError       **error)
+{
+  g_return_val_if_fail (g_task_is_valid (res, self), NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+  return g_task_propagate_pointer (G_TASK (res), error);
+}
+
+static void
+_pp_host_get_remote_cups_devices_thread (GTask        *task,
+                                         gpointer      source_object,
+                                         gpointer      task_data,
+                                         GCancellable *cancellable)
+{
+  cups_dest_t   *dests = NULL;
+  PpHost        *self = (PpHost *) source_object;
+  PpHostPrivate *priv = pp_host_get_instance_private (self);
+  g_autoptr(GPtrArray) devices = NULL;
+  http_t        *http;
+  gint           num_of_devices = 0;
+  gint           port;
+  gint           i;
+
+  devices = g_ptr_array_new_with_free_func (g_object_unref);
+
+  if (priv->port == PP_HOST_UNSET_PORT)
+    port = PP_HOST_DEFAULT_IPP_PORT;
+  else
+    port = priv->port;
+
+  /* Connect to remote CUPS server and get its devices */
+#ifdef HAVE_CUPS_HTTPCONNECT2
+  http = httpConnect2 (priv->hostname, port, NULL, AF_UNSPEC,
+                       HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL);
+#else
+  http = httpConnect (priv->hostname, port);
+#endif
+  if (http)
+    {
+      num_of_devices = cupsGetDests2 (http, &dests);
+      if (num_of_devices > 0)
+        {
+          for (i = 0; i < num_of_devices; i++)
+            {
+              g_autofree gchar *device_uri = NULL;
+              const char *device_location;
+              PpPrintDevice *device;
+
+              device_uri = g_strdup_printf ("ipp://%s:%d/printers/%s",
+                                            priv->hostname,
+                                            port,
+                                            dests[i].name);
+
+              device_location = cupsGetOption ("printer-location",
+                                               dests[i].num_options,
+                                               dests[i].options);
+
+              device = g_object_new (PP_TYPE_PRINT_DEVICE,
+                                     "is-network-device", TRUE,
+                                     "device-uri", device_uri,
+                                     "device-name", dests[i].name,
+                                     "device-location", device_location,
+                                     "host-name", priv->hostname,
+                                     "host-port", port,
+                                     "acquisition-method", ACQUISITION_METHOD_REMOTE_CUPS_SERVER,
+                                     NULL);
+              g_ptr_array_add (devices, device);
+            }
+        }
+
+      httpClose (http);
+    }
+
+  g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
+}
+
+void
+pp_host_get_remote_cups_devices_async (PpHost              *self,
+                                       GCancellable        *cancellable,
+                                       GAsyncReadyCallback  callback,
+                                       gpointer             user_data)
+{
+  g_autoptr(GTask) task = NULL;
+
+  task = g_task_new (self, cancellable, callback, user_data);
+  g_task_run_in_thread (task, _pp_host_get_remote_cups_devices_thread);
+}
+
+GPtrArray *
+pp_host_get_remote_cups_devices_finish (PpHost        *self,
+                                        GAsyncResult  *res,
+                                        GError       **error)
+{
+  g_return_val_if_fail (g_task_is_valid (res, self), NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+  return g_task_propagate_pointer (G_TASK (res), error);
+}
+
+typedef struct
+{
+  PpHost *host;
+  gint    port;
+} JetDirectData;
+
+static void
+jetdirect_data_free (JetDirectData *data)
+{
+  if (data != NULL)
+    {
+      g_clear_object (&data->host);
+      g_free (data);
+    }
+}
+
+static void
+jetdirect_connection_test_cb (GObject      *source_object,
+                              GAsyncResult *res,
+                              gpointer      user_data)
+{
+  g_autoptr(GSocketConnection) connection = NULL;
+  PpHostPrivate               *priv;
+  JetDirectData               *data;
+  g_autoptr(GPtrArray)         devices = NULL;
+  g_autoptr(GError)            error = NULL;
+  g_autoptr(GTask)             task = G_TASK (user_data);
+
+  data = g_task_get_task_data (task);
+  priv = pp_host_get_instance_private (data->host);
+
+  devices = g_ptr_array_new_with_free_func (g_object_unref);
+
+  connection = g_socket_client_connect_to_host_finish (G_SOCKET_CLIENT (source_object),
+                                                       res,
+                                                       &error);
+
+  if (connection != NULL)
+    {
+      g_autofree gchar *device_uri = NULL;
+      PpPrintDevice *device;
+
+      g_io_stream_close (G_IO_STREAM (connection), NULL, NULL);
+
+      device_uri = g_strdup_printf ("socket://%s:%d",
+                                    priv->hostname,
+                                    data->port);
+
+      device = g_object_new (PP_TYPE_PRINT_DEVICE,
+                             "is-network-device", TRUE,
+                             "device-uri", device_uri,
+                             /* Translators: The found device is a JetDirect printer */
+                             "device-name", _("JetDirect Printer"),
+                             "host-name", priv->hostname,
+                             "host-port", data->port,
+                             "acquisition-method", ACQUISITION_METHOD_JETDIRECT,
+                             NULL);
+      g_ptr_array_add (devices, device);
+    }
+
+  g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
+}
+
+/* Test whether given host has an AppSocket/HP JetDirect printer connected.
+   See http://en.wikipedia.org/wiki/JetDirect
+       http://www.cups.org/documentation.php/network.html */
+void
+pp_host_get_jetdirect_devices_async (PpHost              *self,
+                                     GCancellable        *cancellable,
+                                     GAsyncReadyCallback  callback,
+                                     gpointer             user_data)
+{
+  PpHostPrivate    *priv = pp_host_get_instance_private (self);
+  JetDirectData    *data;
+  g_autoptr(GTask)  task = NULL;
+  g_autofree gchar *address = NULL;
+
+  data = g_new0 (JetDirectData, 1);
+  data->host = g_object_ref (self);
+
+  if (priv->port == PP_HOST_UNSET_PORT)
+    data->port = PP_HOST_DEFAULT_JETDIRECT_PORT;
+  else
+    data->port = priv->port;
+
+  task = g_task_new (G_OBJECT (self), cancellable, callback, user_data);
+  g_task_set_task_data (task, data, (GDestroyNotify) jetdirect_data_free);
+
+  address = g_strdup_printf ("%s:%d", priv->hostname, data->port);
+  if (address != NULL && address[0] != '/')
+    {
+      g_autoptr(GSocketClient) client = NULL;
+
+      client = g_socket_client_new ();
+
+      g_socket_client_connect_to_host_async (client,
+                                             address,
+                                             data->port,
+                                             cancellable,
+                                             jetdirect_connection_test_cb,
+                                             g_steal_pointer (&task));
+    }
+  else
+    {
+      GPtrArray *devices = g_ptr_array_new_with_free_func (g_object_unref);
+      g_task_return_pointer (task, devices, (GDestroyNotify) g_ptr_array_unref);
+    }
+}
+
+GPtrArray *
+pp_host_get_jetdirect_devices_finish (PpHost        *self,
+                                      GAsyncResult  *res,
+                                      GError       **error)
+{
+  g_return_val_if_fail (g_task_is_valid (res, self), NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+  return g_task_propagate_pointer (G_TASK (res), error);
+}
+
+static gboolean
+test_lpd_queue (GSocketClient *client,
+                gchar         *address,
+                gint           port,
+                GCancellable  *cancellable,
+                gchar         *queue_name)
+{
+  g_autoptr(GSocketConnection) connection = NULL;
+  gboolean                     result = FALSE;
+  g_autoptr(GError)            error = NULL;
+
+  connection = g_socket_client_connect_to_host (client,
+                                                address,
+                                                port,
+                                                cancellable,
+                                                &error);
+
+  if (connection != NULL)
+    {
+      if (G_IS_TCP_CONNECTION (connection))
+        {
+          GOutputStream *output;
+          GInputStream  *input;
+          gssize         bytes_read, bytes_written;
+          gchar          buffer[BUFFER_LENGTH];
+          gint           length;
+
+          output = g_io_stream_get_output_stream (G_IO_STREAM (connection));
+          input = g_io_stream_get_input_stream (G_IO_STREAM (connection));
+
+          /* This LPD command is explained in RFC 1179, section 5.2 */
+          length = g_snprintf (buffer, BUFFER_LENGTH, "\2%s\n", queue_name);
+
+          bytes_written = g_output_stream_write (output,
+                                                 buffer,
+                                                 length,
+                                                 NULL,
+                                                 &error);
+
+          if (bytes_written != -1)
+            {
+              bytes_read = g_input_stream_read (input,
+                                                buffer,
+                                                BUFFER_LENGTH,
+                                                NULL,
+                                                &error);
+
+              if (bytes_read != -1)
+                {
+                  if (bytes_read > 0 && buffer[0] == 0)
+                    {
+                      /* This LPD command is explained in RFC 1179, section 6.1 */
+                      length = g_snprintf (buffer, BUFFER_LENGTH, "\1\n");
+
+                      bytes_written = g_output_stream_write (output,
+                                                             buffer,
+                                                             length,
+                                                             NULL,
+                                                             &error);
+
+                      result = TRUE;
+                    }
+                }
+            }
+        }
+
+      g_io_stream_close (G_IO_STREAM (connection), NULL, NULL);
+    }
+
+  return result;
+}
+
+static void
+_pp_host_get_lpd_devices_thread (GTask        *task,
+                                 gpointer      source_object,
+                                 gpointer      task_data,
+                                 GCancellable *cancellable)
+{
+  g_autoptr(GSocketConnection) connection = NULL;
+  PpHost                      *self = source_object;
+  PpHostPrivate               *priv = pp_host_get_instance_private (self);
+  g_autoptr(GPtrArray)         devices = NULL;
+  g_autoptr(GSocketClient)     client = NULL;
+  g_autoptr(GError)            error = NULL;
+  GList                       *candidates = NULL;
+  GList                       *iter;
+  gchar                       *found_queue = NULL;
+  gchar                       *candidate;
+  g_autofree gchar            *address = NULL;
+  gint                         port;
+  gint                         i;
+
+  if (priv->port == PP_HOST_UNSET_PORT)
+    port = PP_HOST_DEFAULT_LPD_PORT;
+  else
+    port = priv->port;
+
+  devices = g_ptr_array_new_with_free_func (g_object_unref);
+
+  address = g_strdup_printf ("%s:%d", priv->hostname, port);
+  if (address == NULL || address[0] == '/')
+    {
+      g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
+      return;
+    }
+
+  client = g_socket_client_new ();
+
+  connection = g_socket_client_connect_to_host (client,
+                                                address,
+                                                port,
+                                                cancellable,
+                                                &error);
+
+  if (connection != NULL)
+    {
+      g_io_stream_close (G_IO_STREAM (connection), NULL, NULL);
+
+      /* Most of this list is taken from system-config-printer */
+      candidates = g_list_append (candidates, g_strdup ("PASSTHRU"));
+      candidates = g_list_append (candidates, g_strdup ("AUTO"));
+      candidates = g_list_append (candidates, g_strdup ("BINPS"));
+      candidates = g_list_append (candidates, g_strdup ("RAW"));
+      candidates = g_list_append (candidates, g_strdup ("TEXT"));
+      candidates = g_list_append (candidates, g_strdup ("ps"));
+      candidates = g_list_append (candidates, g_strdup ("lp"));
+      candidates = g_list_append (candidates, g_strdup ("PORT1"));
+
+      for (i = 0; i < 8; i++)
+        {
+          candidates = g_list_append (candidates, g_strdup_printf ("LPT%d", i));
+          candidates = g_list_append (candidates, g_strdup_printf ("LPT%d_PASSTHRU", i));
+          candidates = g_list_append (candidates, g_strdup_printf ("COM%d", i));
+          candidates = g_list_append (candidates, g_strdup_printf ("COM%d_PASSTHRU", i));
+        }
+
+      for (i = 0; i < 50; i++)
+        candidates = g_list_append (candidates, g_strdup_printf ("pr%d", i));
+
+      for (iter = candidates; iter != NULL; iter = iter->next)
+        {
+          candidate = (gchar *) iter->data;
+
+          if (test_lpd_queue (client,
+                              address,
+                              port,
+                              cancellable,
+                              candidate))
+            {
+              found_queue = g_strdup (candidate);
+              break;
+            }
+        }
+
+      if (found_queue != NULL)
+        {
+          g_autofree gchar *device_uri = NULL;
+          PpPrintDevice *device;
+
+          device_uri = g_strdup_printf ("lpd://%s:%d/%s",
+                                        priv->hostname,
+                                        port,
+                                        found_queue);
+
+          device = g_object_new (PP_TYPE_PRINT_DEVICE,
+                                 "is-network-device", TRUE,
+                                 "device-uri", device_uri,
+                                 /* Translators: The found device is a Line Printer Daemon printer */
+                                 "device-name", _("LPD Printer"),
+                                 "host-name", priv->hostname,
+                                 "host-port", port,
+                                 "acquisition-method", ACQUISITION_METHOD_LPD,
+                                 NULL);
+          g_ptr_array_add (devices, device);
+        }
+
+      g_list_free_full (candidates, g_free);
+    }
+
+  g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
+}
+
+void
+pp_host_get_lpd_devices_async (PpHost              *self,
+                               GCancellable        *cancellable,
+                               GAsyncReadyCallback  callback,
+                               gpointer             user_data)
+{
+  g_autoptr(GTask) task = NULL;
+
+  task = g_task_new (G_OBJECT (self), cancellable, callback, user_data);
+  g_task_run_in_thread (task, _pp_host_get_lpd_devices_thread);
+}
+
+GPtrArray *
+pp_host_get_lpd_devices_finish (PpHost        *self,
+                                GAsyncResult  *res,
+                                GError       **error)
+{
+  g_return_val_if_fail (g_task_is_valid (res, self), NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+  return g_task_propagate_pointer (G_TASK (res), error);
+}