329 lines
11 KiB
C
329 lines
11 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Author: Marek Kasik <mkasik@redhat.com>
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*/
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#include <glib/gstdio.h>
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#include "pp-maintenance-command.h"
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#include "pp-utils.h"
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#if (CUPS_VERSION_MAJOR > 1) || (CUPS_VERSION_MINOR > 5)
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#define HAVE_CUPS_1_6 1
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#endif
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#ifndef HAVE_CUPS_1_6
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#define ippGetCount(attr) attr->num_values
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#define ippGetValueTag(attr) attr->value_tag
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#define ippGetStatusCode(ipp) ipp->request.status.status_code
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#define ippGetString(attr, element, language) attr->values[element].string.text
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#endif
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struct _PpMaintenanceCommandPrivate
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{
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gchar *printer_name;
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gchar *command;
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gchar *title;
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};
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G_DEFINE_TYPE (PpMaintenanceCommand, pp_maintenance_command, G_TYPE_OBJECT);
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enum {
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PROP_0 = 0,
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PROP_PRINTER_NAME,
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PROP_COMMAND,
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PROP_TITLE
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};
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static void
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pp_maintenance_command_finalize (GObject *object)
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{
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PpMaintenanceCommandPrivate *priv;
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priv = PP_MAINTENANCE_COMMAND (object)->priv;
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g_clear_pointer (&priv->printer_name, g_free);
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g_clear_pointer (&priv->command, g_free);
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g_clear_pointer (&priv->title, g_free);
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G_OBJECT_CLASS (pp_maintenance_command_parent_class)->finalize (object);
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}
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static void
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pp_maintenance_command_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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PpMaintenanceCommand *self;
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self = PP_MAINTENANCE_COMMAND (object);
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switch (prop_id)
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{
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case PROP_PRINTER_NAME:
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g_value_set_string (value, self->priv->printer_name);
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break;
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case PROP_COMMAND:
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g_value_set_string (value, self->priv->command);
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break;
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case PROP_TITLE:
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g_value_set_string (value, self->priv->title);
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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_maintenance_command_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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PpMaintenanceCommand *self = PP_MAINTENANCE_COMMAND (object);
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switch (prop_id)
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{
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case PROP_PRINTER_NAME:
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g_free (self->priv->printer_name);
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self->priv->printer_name = g_value_dup_string (value);
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break;
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case PROP_COMMAND:
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g_free (self->priv->command);
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self->priv->command = g_value_dup_string (value);
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break;
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case PROP_TITLE:
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g_free (self->priv->title);
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self->priv->title = g_value_dup_string (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_maintenance_command_class_init (PpMaintenanceCommandClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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g_type_class_add_private (klass, sizeof (PpMaintenanceCommandPrivate));
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gobject_class->set_property = pp_maintenance_command_set_property;
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gobject_class->get_property = pp_maintenance_command_get_property;
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gobject_class->finalize = pp_maintenance_command_finalize;
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g_object_class_install_property (gobject_class, PROP_PRINTER_NAME,
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g_param_spec_string ("printer-name",
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"Printer name",
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"Name of the printer",
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NULL,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_COMMAND,
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g_param_spec_string ("command",
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"Maintenance command",
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"Command to execute",
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NULL,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_TITLE,
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g_param_spec_string ("title",
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"Command title",
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"Title of the job by which the command will be executed",
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NULL,
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G_PARAM_READWRITE));
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}
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static void
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pp_maintenance_command_init (PpMaintenanceCommand *command)
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{
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command->priv = G_TYPE_INSTANCE_GET_PRIVATE (command,
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PP_TYPE_MAINTENANCE_COMMAND,
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PpMaintenanceCommandPrivate);
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}
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PpMaintenanceCommand *
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pp_maintenance_command_new (const gchar *printer_name,
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const gchar *command,
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const gchar *title)
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{
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return g_object_new (PP_TYPE_MAINTENANCE_COMMAND,
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"printer-name", printer_name,
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"command", command,
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"title", title,
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NULL);
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}
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static void
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_pp_maintenance_command_execute_thread (GSimpleAsyncResult *res,
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GObject *object,
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GCancellable *cancellable)
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{
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PpMaintenanceCommand *command = (PpMaintenanceCommand *) object;
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PpMaintenanceCommandPrivate *priv = command->priv;
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static const char *attrs[] = {"printer-commands"};
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ipp_attribute_t *attr = NULL;
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gboolean success = FALSE;
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GError *error = NULL;
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ipp_t *request;
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ipp_t *response = NULL;
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gchar *printer_uri;
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gchar *printer_commands = NULL;
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gchar *printer_commands_lowercase = NULL;
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gchar *command_lowercase;
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gchar *file_name = NULL;
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int fd = -1;
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printer_uri = g_strdup_printf ("ipp://localhost/printers/%s",
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priv->printer_name);
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request = ippNewRequest (IPP_GET_PRINTER_ATTRIBUTES);
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ippAddString (request, IPP_TAG_OPERATION, IPP_TAG_URI,
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"printer-uri", NULL, printer_uri);
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ippAddStrings (request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
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"requested-attributes", 1, NULL, attrs);
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response = cupsDoRequest (CUPS_HTTP_DEFAULT, request, "/");
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if (response)
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{
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if (ippGetStatusCode (response) <= IPP_OK_CONFLICT)
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{
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attr = ippFindAttribute (response, "printer-commands", IPP_TAG_ZERO);
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if (attr && ippGetCount (attr) > 0 && ippGetValueTag (attr) != IPP_TAG_NOVALUE)
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{
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if (ippGetValueTag (attr) == IPP_TAG_KEYWORD)
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{
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printer_commands = g_strdup (ippGetString (attr, 0, NULL));
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}
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}
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else
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{
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success = TRUE;
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}
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}
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ippDelete (response);
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}
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if (printer_commands)
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{
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command_lowercase = g_ascii_strdown (priv->command, -1);
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printer_commands_lowercase = g_ascii_strdown (printer_commands, -1);
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if (g_strrstr (printer_commands_lowercase, command_lowercase))
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{
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request = ippNewRequest (IPP_PRINT_JOB);
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ippAddString (request, IPP_TAG_OPERATION, IPP_TAG_URI,
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"printer-uri", NULL, printer_uri);
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ippAddString (request, IPP_TAG_OPERATION, IPP_TAG_NAME,
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"job-name", NULL, priv->title);
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ippAddString (request, IPP_TAG_JOB, IPP_TAG_MIMETYPE,
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"document-format", NULL, "application/vnd.cups-command");
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fd = g_file_open_tmp ("ccXXXXXX", &file_name, &error);
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if (fd != -1)
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{
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FILE *file;
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file = fdopen (fd, "w");
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fprintf (file, "#CUPS-COMMAND\n");
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fprintf (file, "%s\n", priv->command);
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fclose (file);
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response = cupsDoFileRequest (CUPS_HTTP_DEFAULT, request, "/", file_name);
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g_unlink (file_name);
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if (response)
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{
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if (ippGetStatusCode (response) <= IPP_OK_CONFLICT)
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{
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success = TRUE;
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}
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ippDelete (response);
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}
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}
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g_free (file_name);
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}
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else
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{
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success = TRUE;
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}
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g_free (command_lowercase);
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g_free (printer_commands_lowercase);
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g_free (printer_commands);
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}
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g_free (printer_uri);
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if (!success)
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{
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g_simple_async_result_set_error (res,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"Execution of maintenance command failed.");
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}
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g_simple_async_result_set_op_res_gboolean (res, success);
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}
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void
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pp_maintenance_command_execute_async (PpMaintenanceCommand *command,
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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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GSimpleAsyncResult *res;
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res = g_simple_async_result_new (G_OBJECT (command), callback, user_data, pp_maintenance_command_execute_async);
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g_simple_async_result_set_check_cancellable (res, cancellable);
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g_simple_async_result_run_in_thread (res, _pp_maintenance_command_execute_thread, 0, cancellable);
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g_object_unref (res);
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}
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gboolean
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pp_maintenance_command_execute_finish (PpMaintenanceCommand *command,
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GAsyncResult *res,
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GError **error)
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{
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GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
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g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == pp_maintenance_command_execute_async);
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if (g_simple_async_result_propagate_error (simple, error))
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{
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return FALSE;
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}
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return g_simple_async_result_get_op_res_gboolean (simple);
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}
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