747 lines
24 KiB
C
747 lines
24 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright 2012 Red Hat, Inc,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Marek Kasik <mkasik@redhat.com>
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*/
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#include "config.h"
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#include "pp-host.h"
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#include <glib/gi18n.h>
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#define BUFFER_LENGTH 1024
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typedef struct
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{
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gchar *hostname;
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gint port;
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} PpHostPrivate;
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G_DEFINE_TYPE_WITH_PRIVATE (PpHost, pp_host, G_TYPE_OBJECT);
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enum {
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PROP_0 = 0,
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PROP_HOSTNAME,
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PROP_PORT,
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};
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enum {
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AUTHENTICATION_REQUIRED,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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static void
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pp_host_finalize (GObject *object)
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{
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PpHost *self = PP_HOST (object);
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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g_clear_pointer (&priv->hostname, g_free);
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G_OBJECT_CLASS (pp_host_parent_class)->finalize (object);
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}
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static void
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pp_host_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *param_spec)
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{
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PpHost *self = PP_HOST (object);
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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switch (prop_id)
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{
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case PROP_HOSTNAME:
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g_value_set_string (value, priv->hostname);
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break;
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case PROP_PORT:
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g_value_set_int (value, priv->port);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
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prop_id,
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param_spec);
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break;
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}
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}
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static void
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pp_host_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *param_spec)
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{
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PpHost *self = PP_HOST (object);
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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switch (prop_id)
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{
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case PROP_HOSTNAME:
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g_free (priv->hostname);
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priv->hostname = g_value_dup_string (value);
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break;
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case PROP_PORT:
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priv->port = g_value_get_int (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
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prop_id,
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param_spec);
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break;
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}
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}
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static void
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pp_host_class_init (PpHostClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->set_property = pp_host_set_property;
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gobject_class->get_property = pp_host_get_property;
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gobject_class->finalize = pp_host_finalize;
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g_object_class_install_property (gobject_class, PROP_HOSTNAME,
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g_param_spec_string ("hostname",
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"Hostname",
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"The hostname",
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NULL,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_PORT,
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g_param_spec_int ("port",
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"Port",
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"The port",
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-1, G_MAXINT32, PP_HOST_UNSET_PORT,
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G_PARAM_READWRITE));
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signals[AUTHENTICATION_REQUIRED] =
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g_signal_new ("authentication-required",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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0,
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NULL, NULL, NULL,
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G_TYPE_NONE, 0);
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}
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static void
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pp_host_init (PpHost *self)
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{
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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priv->port = PP_HOST_UNSET_PORT;
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}
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PpHost *
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pp_host_new (const gchar *hostname)
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{
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return g_object_new (PP_TYPE_HOST,
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"hostname", hostname,
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NULL);
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}
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static gchar **
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line_split (gchar *line)
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{
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gboolean escaped = FALSE;
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gboolean quoted = FALSE;
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gboolean in_word = FALSE;
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gchar **words = NULL;
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gchar **result = NULL;
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g_autofree gchar *buffer = NULL;
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gchar ch;
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gint n = 0;
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gint i, j = 0, k = 0;
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if (line)
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{
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n = strlen (line);
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words = g_new0 (gchar *, n + 1);
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buffer = g_new0 (gchar, n + 1);
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for (i = 0; i < n; i++)
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{
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ch = line[i];
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if (escaped)
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{
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buffer[k++] = ch;
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escaped = FALSE;
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continue;
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}
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if (ch == '\\')
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{
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in_word = TRUE;
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escaped = TRUE;
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continue;
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}
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if (in_word)
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{
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if (quoted)
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{
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if (ch == '"')
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quoted = FALSE;
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else
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buffer[k++] = ch;
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}
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else if (g_ascii_isspace (ch))
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{
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words[j++] = g_strdup (buffer);
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memset (buffer, 0, n + 1);
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k = 0;
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in_word = FALSE;
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}
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else if (ch == '"')
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quoted = TRUE;
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else
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buffer[k++] = ch;
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}
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else
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{
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if (ch == '"')
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{
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in_word = TRUE;
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quoted = TRUE;
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}
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else if (!g_ascii_isspace (ch))
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{
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in_word = TRUE;
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buffer[k++] = ch;
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}
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}
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}
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}
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if (buffer && buffer[0] != '\0')
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words[j++] = g_strdup (buffer);
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result = g_strdupv (words);
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g_strfreev (words);
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return result;
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}
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static void
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_pp_host_get_snmp_devices_thread (GTask *task,
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gpointer source_object,
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gpointer task_data,
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GCancellable *cancellable)
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{
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PpHost *self = source_object;
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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g_autoptr(GPtrArray) devices = NULL;
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g_autoptr(GError) error = NULL;
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g_auto(GStrv) argv = NULL;
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g_autofree gchar *stdout_string = NULL;
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gint exit_status;
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devices = g_ptr_array_new_with_free_func (g_object_unref);
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argv = g_new0 (gchar *, 3);
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argv[0] = g_strdup ("/usr/lib/cups/backend/snmp");
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argv[1] = g_strdup (priv->hostname);
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/* Use SNMP to get printer's informations */
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g_spawn_sync (NULL,
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argv,
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NULL,
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G_SPAWN_STDERR_TO_DEV_NULL,
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NULL,
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NULL,
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&stdout_string,
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NULL,
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&exit_status,
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&error);
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if (exit_status == 0 && stdout_string)
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{
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g_auto(GStrv) printer_informations = NULL;
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gint length;
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printer_informations = line_split (stdout_string);
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length = g_strv_length (printer_informations);
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if (length >= 4)
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{
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g_autofree gchar *device_name = NULL;
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gboolean is_network_device;
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PpPrintDevice *device;
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device_name = g_strdup (printer_informations[3]);
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g_strcanon (device_name, ALLOWED_CHARACTERS, '-');
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is_network_device = g_strcmp0 (printer_informations[0], "network") == 0;
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device = g_object_new (PP_TYPE_PRINT_DEVICE,
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"is-network-device", is_network_device,
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"device-uri", printer_informations[1],
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"device-make-and-model", printer_informations[2],
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"device-info", printer_informations[3],
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"acquisition-method", ACQUISITION_METHOD_SNMP,
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"device-name", device_name,
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NULL);
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if (length >= 5 && printer_informations[4][0] != '\0')
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g_object_set (device, "device-id", printer_informations[4], NULL);
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if (length >= 6 && printer_informations[5][0] != '\0')
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g_object_set (device, "device-location", printer_informations[5], NULL);
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g_ptr_array_add (devices, device);
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}
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}
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g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
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}
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void
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pp_host_get_snmp_devices_async (PpHost *self,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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g_autoptr(GTask) task = NULL;
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task = g_task_new (self, cancellable, callback, user_data);
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g_task_run_in_thread (task, _pp_host_get_snmp_devices_thread);
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}
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GPtrArray *
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pp_host_get_snmp_devices_finish (PpHost *self,
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GAsyncResult *res,
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GError **error)
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{
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g_return_val_if_fail (g_task_is_valid (res, self), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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return g_task_propagate_pointer (G_TASK (res), error);
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}
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static void
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_pp_host_get_remote_cups_devices_thread (GTask *task,
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gpointer source_object,
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gpointer task_data,
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GCancellable *cancellable)
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{
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cups_dest_t *dests = NULL;
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PpHost *self = (PpHost *) source_object;
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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g_autoptr(GPtrArray) devices = NULL;
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http_t *http;
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gint num_of_devices = 0;
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gint port;
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gint i;
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devices = g_ptr_array_new_with_free_func (g_object_unref);
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if (priv->port == PP_HOST_UNSET_PORT)
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port = PP_HOST_DEFAULT_IPP_PORT;
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else
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port = priv->port;
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/* Connect to remote CUPS server and get its devices */
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#ifdef HAVE_CUPS_HTTPCONNECT2
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http = httpConnect2 (priv->hostname, port, NULL, AF_UNSPEC,
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HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL);
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#else
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http = httpConnect (priv->hostname, port);
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#endif
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if (http)
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{
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num_of_devices = cupsGetDests2 (http, &dests);
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if (num_of_devices > 0)
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{
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for (i = 0; i < num_of_devices; i++)
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{
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g_autofree gchar *device_uri = NULL;
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const char *device_location;
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PpPrintDevice *device;
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device_uri = g_strdup_printf ("ipp://%s:%d/printers/%s",
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priv->hostname,
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port,
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dests[i].name);
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device_location = cupsGetOption ("printer-location",
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dests[i].num_options,
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dests[i].options);
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device = g_object_new (PP_TYPE_PRINT_DEVICE,
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"is-network-device", TRUE,
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"device-uri", device_uri,
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"device-name", dests[i].name,
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"device-location", device_location,
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"host-name", priv->hostname,
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"host-port", port,
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"acquisition-method", ACQUISITION_METHOD_REMOTE_CUPS_SERVER,
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NULL);
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g_ptr_array_add (devices, device);
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}
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}
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httpClose (http);
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}
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g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
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}
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void
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pp_host_get_remote_cups_devices_async (PpHost *self,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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g_autoptr(GTask) task = NULL;
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task = g_task_new (self, cancellable, callback, user_data);
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g_task_run_in_thread (task, _pp_host_get_remote_cups_devices_thread);
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}
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GPtrArray *
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pp_host_get_remote_cups_devices_finish (PpHost *self,
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GAsyncResult *res,
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GError **error)
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{
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g_return_val_if_fail (g_task_is_valid (res, self), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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return g_task_propagate_pointer (G_TASK (res), error);
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}
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typedef struct
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{
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PpHost *host;
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gint port;
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} JetDirectData;
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static void
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jetdirect_data_free (JetDirectData *data)
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{
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if (data != NULL)
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{
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g_clear_object (&data->host);
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g_free (data);
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}
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}
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static void
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jetdirect_connection_test_cb (GObject *source_object,
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GAsyncResult *res,
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gpointer user_data)
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{
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g_autoptr(GSocketConnection) connection = NULL;
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PpHostPrivate *priv;
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JetDirectData *data;
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g_autoptr(GPtrArray) devices = NULL;
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g_autoptr(GError) error = NULL;
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g_autoptr(GTask) task = G_TASK (user_data);
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data = g_task_get_task_data (task);
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priv = pp_host_get_instance_private (data->host);
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devices = g_ptr_array_new_with_free_func (g_object_unref);
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connection = g_socket_client_connect_to_host_finish (G_SOCKET_CLIENT (source_object),
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res,
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&error);
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if (connection != NULL)
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{
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g_autofree gchar *device_uri = NULL;
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PpPrintDevice *device;
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g_io_stream_close (G_IO_STREAM (connection), NULL, NULL);
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device_uri = g_strdup_printf ("socket://%s:%d",
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priv->hostname,
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data->port);
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device = g_object_new (PP_TYPE_PRINT_DEVICE,
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"is-network-device", TRUE,
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"device-uri", device_uri,
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/* Translators: The found device is a JetDirect printer */
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"device-name", _("JetDirect Printer"),
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"host-name", priv->hostname,
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"host-port", data->port,
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"acquisition-method", ACQUISITION_METHOD_JETDIRECT,
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NULL);
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g_ptr_array_add (devices, device);
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}
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g_task_return_pointer (task, g_ptr_array_ref (devices), (GDestroyNotify) g_ptr_array_unref);
|
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}
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|
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/* Test whether given host has an AppSocket/HP JetDirect printer connected.
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See http://en.wikipedia.org/wiki/JetDirect
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http://www.cups.org/documentation.php/network.html */
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void
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pp_host_get_jetdirect_devices_async (PpHost *self,
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GCancellable *cancellable,
|
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GAsyncReadyCallback callback,
|
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gpointer user_data)
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{
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PpHostPrivate *priv = pp_host_get_instance_private (self);
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JetDirectData *data;
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g_autoptr(GTask) task = NULL;
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g_autofree gchar *address = NULL;
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data = g_new0 (JetDirectData, 1);
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data->host = g_object_ref (self);
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if (priv->port == PP_HOST_UNSET_PORT)
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data->port = PP_HOST_DEFAULT_JETDIRECT_PORT;
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else
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data->port = priv->port;
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task = g_task_new (G_OBJECT (self), cancellable, callback, user_data);
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g_task_set_task_data (task, data, (GDestroyNotify) jetdirect_data_free);
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address = g_strdup_printf ("%s:%d", priv->hostname, data->port);
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if (address != NULL && address[0] != '/')
|
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{
|
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g_autoptr(GSocketClient) client = NULL;
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|
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client = g_socket_client_new ();
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g_socket_client_connect_to_host_async (client,
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address,
|
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data->port,
|
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cancellable,
|
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jetdirect_connection_test_cb,
|
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g_steal_pointer (&task));
|
|
}
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else
|
|
{
|
|
GPtrArray *devices = g_ptr_array_new_with_free_func (g_object_unref);
|
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g_task_return_pointer (task, devices, (GDestroyNotify) g_ptr_array_unref);
|
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}
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}
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|
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GPtrArray *
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pp_host_get_jetdirect_devices_finish (PpHost *self,
|
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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);
|
|
}
|