/* GTK - The GIMP Toolkit
* gtkprintbackendcups.h: Default implementation of GtkPrintBackend
* for the Common Unix Print System (CUPS)
* Copyright (C) 2006, 2007 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef __linux__
#define _GNU_SOURCE
#endif
#include "config.h"
#include <ctype.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <time.h>
/* Cups 1.6 deprecates ppdFindAttr(), ppdFindCustomOption(),
* ppdFirstCustomParam(), and ppdNextCustomParam() among others. This
* turns off the warning so that it will compile.
*/
#ifdef HAVE_CUPS_API_1_6
# define _PPD_DEPRECATED
#endif
#include <cups/cups.h>
#include <cups/language.h>
#include <cups/http.h>
#include <cups/ipp.h>
#include <errno.h>
#include <cairo.h>
#include <cairo-pdf.h>
#include <cairo-ps.h>
#include <glib/gstdio.h>
#include <glib/gi18n-lib.h>
#include <gmodule.h>
#include <gtk/gtk.h>
#include <gtk/gtkprintbackend.h>
#include <gtk/gtkunixprint.h>
#include <gtk/gtkprinter-private.h>
#include "gtkprintbackendcups.h"
#include "gtkprintercups.h"
#include "gtkcupsutils.h"
typedef struct _GtkPrintBackendCupsClass GtkPrintBackendCupsClass;
#define GTK_PRINT_BACKEND_CUPS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PRINT_BACKEND_CUPS, GtkPrintBackendCupsClass))
#define GTK_IS_PRINT_BACKEND_CUPS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PRINT_BACKEND_CUPS))
#define GTK_PRINT_BACKEND_CUPS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PRINT_BACKEND_CUPS, GtkPrintBackendCupsClass))
#define _CUPS_MAX_ATTEMPTS 10
#define _CUPS_MAX_CHUNK_SIZE 8192
#ifdef HAVE_CUPS_API_1_6
#define AVAHI_IF_UNSPEC -1
#define AVAHI_PROTO_INET 0
#define AVAHI_PROTO_INET6 1
#define AVAHI_PROTO_UNSPEC -1
#define AVAHI_BUS "org.freedesktop.Avahi"
#define AVAHI_SERVER_IFACE "org.freedesktop.Avahi.Server"
#define AVAHI_SERVICE_BROWSER_IFACE "org.freedesktop.Avahi.ServiceBrowser"
#endif
/* define this to see warnings about ignored ppd options */
#undef PRINT_IGNORED_OPTIONS
#define _CUPS_MAP_ATTR_INT(attr, v, a) {if (!g_ascii_strcasecmp (attr->name, (a))) v = attr->values[0].integer;}
#define _CUPS_MAP_ATTR_STR(attr, v, a) {if (!g_ascii_strcasecmp (attr->name, (a))) v = attr->values[0].string.text;}
static GType print_backend_cups_type = 0;
typedef void (* GtkPrintCupsResponseCallbackFunc) (GtkPrintBackend *print_backend,
GtkCupsResult *result,
gpointer user_data);
typedef enum
{
DISPATCH_SETUP,
DISPATCH_REQUEST,
DISPATCH_SEND,
DISPATCH_CHECK,
DISPATCH_READ,
DISPATCH_ERROR
} GtkPrintCupsDispatchState;
typedef struct
{
GSource source;
http_t *http;
GtkCupsRequest *request;
GtkCupsPollState poll_state;
GPollFD *data_poll;
GtkPrintBackendCups *backend;
GtkPrintCupsResponseCallbackFunc callback;
gpointer callback_data;
} GtkPrintCupsDispatchWatch;
struct _GtkPrintBackendCupsClass
{
GtkPrintBackendClass parent_class;
};
struct _GtkPrintBackendCups
{
GtkPrintBackend parent_instance;
char *default_printer;
guint list_printers_poll;
guint list_printers_pending : 1;
gint list_printers_attempts;
guint got_default_printer : 1;
guint default_printer_poll;
GtkCupsConnectionTest *cups_connection_test;
gint reading_ppds;
char **covers;
int number_of_covers;
GList *requests;
GHashTable *auth;
gchar *username;
gboolean authentication_lock;
#ifdef HAVE_CUPS_API_1_6
GDBusConnection *dbus_connection;
gchar *avahi_default_printer;
guint avahi_service_browser_subscription_id;
guint avahi_service_browser_subscription_ids[2];
gchar *avahi_service_browser_paths[2];
GCancellable *avahi_cancellable;
#endif
};
static GObjectClass *backend_parent_class;
static void gtk_print_backend_cups_class_init (GtkPrintBackendCupsClass *class);
static void gtk_print_backend_cups_init (GtkPrintBackendCups *impl);
static void gtk_print_backend_cups_finalize (GObject *object);
static void gtk_print_backend_cups_dispose (GObject *object);
static void cups_get_printer_list (GtkPrintBackend *print_backend);
static void cups_get_default_printer (GtkPrintBackendCups *print_backend);
static void cups_get_local_default_printer (GtkPrintBackendCups *print_backend);
static void cups_request_execute (GtkPrintBackendCups *print_backend,
GtkCupsRequest *request,
GtkPrintCupsResponseCallbackFunc callback,
gpointer user_data,
GDestroyNotify notify);
static void cups_printer_get_settings_from_options (GtkPrinter *printer,
GtkPrinterOptionSet *options,
GtkPrintSettings *settings);
static gboolean cups_printer_mark_conflicts (GtkPrinter *printer,
GtkPrinterOptionSet *options);
static GtkPrinterOptionSet *cups_printer_get_options (GtkPrinter *printer,
GtkPrintSettings *settings,
GtkPageSetup *page_setup,
GtkPrintCapabilities capabilities);
static void cups_printer_prepare_for_print (GtkPrinter *printer,
GtkPrintJob *print_job,
GtkPrintSettings *settings,
GtkPageSetup *page_setup);
static GList * cups_printer_list_papers (GtkPrinter *printer);
static GtkPageSetup * cups_printer_get_default_page_size (GtkPrinter *printer);
static void cups_printer_request_details (GtkPrinter *printer);
static gboolean cups_request_default_printer (GtkPrintBackendCups *print_backend);
static gboolean cups_request_ppd (GtkPrinter *printer);
static gboolean cups_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
static GtkPrintCapabilities cups_printer_get_capabilities (GtkPrinter *printer);
static void set_option_from_settings (GtkPrinterOption *option,
GtkPrintSettings *setting);
static void cups_begin_polling_info (GtkPrintBackendCups *print_backend,
GtkPrintJob *job,
int job_id);
static gboolean cups_job_info_poll_timeout (gpointer user_data);
static void gtk_print_backend_cups_print_stream (GtkPrintBackend *backend,
GtkPrintJob *job,
GIOChannel *data_io,
GtkPrintJobCompleteFunc callback,
gpointer user_data,
GDestroyNotify dnotify);
static cairo_surface_t * cups_printer_create_cairo_surface (GtkPrinter *printer,
GtkPrintSettings *settings,
gdouble width,
gdouble height,
GIOChannel *cache_io);
static void gtk_print_backend_cups_set_password (GtkPrintBackend *backend,
gchar **auth_info_required,
gchar **auth_info);
void overwrite_and_free (gpointer data);
static gboolean is_address_local (const gchar *address);
static gboolean request_auth_info (gpointer data);
#ifdef HAVE_CUPS_API_1_6
static void avahi_request_printer_list (GtkPrintBackendCups *cups_backend);
#endif
static void
gtk_print_backend_cups_register_type (GTypeModule *module)
{
const GTypeInfo print_backend_cups_info =
{
sizeof (GtkPrintBackendCupsClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_print_backend_cups_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkPrintBackendCups),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_print_backend_cups_init
};
print_backend_cups_type = g_type_module_register_type (module,
GTK_TYPE_PRINT_BACKEND,
"GtkPrintBackendCups",
&print_backend_cups_info, 0);
}
G_MODULE_EXPORT void
pb_module_init (GTypeModule *module)
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Initializing the CUPS print backend module\n"));
gtk_print_backend_cups_register_type (module);
gtk_printer_cups_register_type (module);
}
G_MODULE_EXPORT void
pb_module_exit (void)
{
}
G_MODULE_EXPORT GtkPrintBackend *
pb_module_create (void)
{
return gtk_print_backend_cups_new ();
}
/* CUPS 1.6 Getter/Setter Functions CUPS 1.6 makes private most of the
* IPP structures and enforces access via new getter functions, which
* are unfortunately not available in earlier versions. We define
* below those getter functions as macros for use when building
* against earlier CUPS versions.
*/
#ifndef HAVE_CUPS_API_1_6
#define ippGetOperation(ipp_request) ipp_request->request.op.operation_id
#define ippGetInteger(attr, index) attr->values[index].integer
#define ippGetBoolean(attr, index) attr->values[index].boolean
#define ippGetString(attr, index, foo) attr->values[index].string.text
#define ippGetValueTag(attr) attr->value_tag
#define ippGetName(attr) attr->name
#define ippGetCount(attr) attr->num_values
#define ippGetGroupTag(attr) attr->group_tag
static int
ippGetRange (ipp_attribute_t *attr,
int element,
int *upper)
{
*upper = attr->values[element].range.upper;
return (attr->values[element].range.lower);
}
#endif
/*
* GtkPrintBackendCups
*/
GType
gtk_print_backend_cups_get_type (void)
{
return print_backend_cups_type;
}
/**
* gtk_print_backend_cups_new:
*
* Creates a new #GtkPrintBackendCups object. #GtkPrintBackendCups
* implements the #GtkPrintBackend interface with direct access to
* the filesystem using Unix/Linux API calls
*
* Return value: the new #GtkPrintBackendCups object
*/
GtkPrintBackend *
gtk_print_backend_cups_new (void)
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Creating a new CUPS print backend object\n"));
return g_object_new (GTK_TYPE_PRINT_BACKEND_CUPS, NULL);
}
static void
gtk_print_backend_cups_class_init (GtkPrintBackendCupsClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_CLASS (class);
backend_parent_class = g_type_class_peek_parent (class);
gobject_class->finalize = gtk_print_backend_cups_finalize;
gobject_class->dispose = gtk_print_backend_cups_dispose;
backend_class->request_printer_list = cups_get_printer_list;
backend_class->print_stream = gtk_print_backend_cups_print_stream;
backend_class->printer_request_details = cups_printer_request_details;
backend_class->printer_create_cairo_surface = cups_printer_create_cairo_surface;
backend_class->printer_get_options = cups_printer_get_options;
backend_class->printer_mark_conflicts = cups_printer_mark_conflicts;
backend_class->printer_get_settings_from_options = cups_printer_get_settings_from_options;
backend_class->printer_prepare_for_print = cups_printer_prepare_for_print;
backend_class->printer_list_papers = cups_printer_list_papers;
backend_class->printer_get_default_page_size = cups_printer_get_default_page_size;
backend_class->printer_get_hard_margins = cups_printer_get_hard_margins;
backend_class->printer_get_capabilities = cups_printer_get_capabilities;
backend_class->set_password = gtk_print_backend_cups_set_password;
}
static cairo_status_t
_cairo_write_to_cups (void *closure,
const unsigned char *data,
unsigned int length)
{
GIOChannel *io = (GIOChannel *)closure;
gsize written;
GError *error;
error = NULL;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Writing %i byte chunk to temp file\n", length));
while (length > 0)
{
g_io_channel_write_chars (io, (gchar *)data, length, &written, &error);
if (error != NULL)
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Error writing to temp file, %s\n",
error->message));
g_error_free (error);
return CAIRO_STATUS_WRITE_ERROR;
}
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Wrote %" G_GSIZE_FORMAT " bytes to temp file\n", written));
data += written;
length -= written;
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_surface_t *
cups_printer_create_cairo_surface (GtkPrinter *printer,
GtkPrintSettings *settings,
gdouble width,
gdouble height,
GIOChannel *cache_io)
{
cairo_surface_t *surface;
ppd_file_t *ppd_file = NULL;
ppd_attr_t *ppd_attr = NULL;
ppd_attr_t *ppd_attr_res = NULL;
ppd_attr_t *ppd_attr_screen_freq = NULL;
ppd_attr_t *ppd_attr_res_screen_freq = NULL;
gchar *res_string = NULL;
gint level = 2;
if (gtk_printer_accepts_pdf (printer))
surface = cairo_pdf_surface_create_for_stream (_cairo_write_to_cups, cache_io, width, height);
else
surface = cairo_ps_surface_create_for_stream (_cairo_write_to_cups, cache_io, width, height);
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file != NULL)
{
ppd_attr = ppdFindAttr (ppd_file, "LanguageLevel", NULL);
if (ppd_attr != NULL)
level = atoi (ppd_attr->value);
if (gtk_print_settings_get_resolution (settings) == 0)
{
ppd_attr_res = ppdFindAttr (ppd_file, "DefaultResolution", NULL);
if (ppd_attr_res != NULL)
{
int res, res_x, res_y;
if (sscanf (ppd_attr_res->value, "%dx%ddpi", &res_x, &res_y) == 2)
{
if (res_x > 0 && res_y > 0)
gtk_print_settings_set_resolution_xy (settings, res_x, res_y);
}
else if (sscanf (ppd_attr_res->value, "%ddpi", &res) == 1)
{
if (res > 0)
gtk_print_settings_set_resolution (settings, res);
}
}
}
res_string = g_strdup_printf ("%ddpi",
gtk_print_settings_get_resolution (settings));
ppd_attr_res_screen_freq = ppdFindAttr (ppd_file, "ResScreenFreq", res_string);
g_free (res_string);
if (ppd_attr_res_screen_freq == NULL)
{
res_string = g_strdup_printf ("%dx%ddpi",
gtk_print_settings_get_resolution_x (settings),
gtk_print_settings_get_resolution_y (settings));
ppd_attr_res_screen_freq = ppdFindAttr (ppd_file, "ResScreenFreq", res_string);
g_free (res_string);
}
ppd_attr_screen_freq = ppdFindAttr (ppd_file, "ScreenFreq", NULL);
if (ppd_attr_res_screen_freq != NULL && atof (ppd_attr_res_screen_freq->value) > 0.0)
gtk_print_settings_set_printer_lpi (settings, atof (ppd_attr_res_screen_freq->value));
else if (ppd_attr_screen_freq != NULL && atof (ppd_attr_screen_freq->value) > 0.0)
gtk_print_settings_set_printer_lpi (settings, atof (ppd_attr_screen_freq->value));
}
if (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_PS)
{
if (level == 2)
cairo_ps_surface_restrict_to_level (surface, CAIRO_PS_LEVEL_2);
if (level == 3)
cairo_ps_surface_restrict_to_level (surface, CAIRO_PS_LEVEL_3);
}
cairo_surface_set_fallback_resolution (surface,
2.0 * gtk_print_settings_get_printer_lpi (settings),
2.0 * gtk_print_settings_get_printer_lpi (settings));
return surface;
}
typedef struct {
GtkPrintJobCompleteFunc callback;
GtkPrintJob *job;
gpointer user_data;
GDestroyNotify dnotify;
} CupsPrintStreamData;
static void
cups_free_print_stream_data (CupsPrintStreamData *data)
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
if (data->dnotify)
data->dnotify (data->user_data);
g_object_unref (data->job);
g_free (data);
}
static void
cups_print_cb (GtkPrintBackendCups *print_backend,
GtkCupsResult *result,
gpointer user_data)
{
GError *error = NULL;
CupsPrintStreamData *ps = user_data;
GDK_THREADS_ENTER ();
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
if (gtk_cups_result_is_error (result))
error = g_error_new_literal (gtk_print_error_quark (),
GTK_PRINT_ERROR_INTERNAL_ERROR,
gtk_cups_result_get_error_string (result));
if (ps->callback)
ps->callback (ps->job, ps->user_data, error);
if (error == NULL)
{
int job_id = 0;
ipp_attribute_t *attr; /* IPP job-id attribute */
ipp_t *response = gtk_cups_result_get_response (result);
if ((attr = ippFindAttribute (response, "job-id", IPP_TAG_INTEGER)) != NULL)
job_id = ippGetInteger (attr, 0);
if (!gtk_print_job_get_track_print_status (ps->job) || job_id == 0)
gtk_print_job_set_status (ps->job, GTK_PRINT_STATUS_FINISHED);
else
{
gtk_print_job_set_status (ps->job, GTK_PRINT_STATUS_PENDING);
cups_begin_polling_info (print_backend, ps->job, job_id);
}
}
else
gtk_print_job_set_status (ps->job, GTK_PRINT_STATUS_FINISHED_ABORTED);
if (error)
g_error_free (error);
GDK_THREADS_LEAVE ();
}
typedef struct {
GtkCupsRequest *request;
GtkPrinterCups *printer;
} CupsOptionsData;
static void
add_cups_options (const gchar *key,
const gchar *value,
gpointer user_data)
{
CupsOptionsData *data = (CupsOptionsData *) user_data;
GtkCupsRequest *request = data->request;
GtkPrinterCups *printer = data->printer;
gboolean custom_value = FALSE;
gchar *new_value = NULL;
gint i;
if (!key || !value)
return;
if (!g_str_has_prefix (key, "cups-"))
return;
if (strcmp (value, "gtk-ignore-value") == 0)
return;
key = key + strlen ("cups-");
if (printer && printer->ppd_file)
{
ppd_coption_t *coption;
gboolean found = FALSE;
gboolean custom_values_enabled = FALSE;
coption = ppdFindCustomOption (printer->ppd_file, key);
if (coption && coption->option)
{
for (i = 0; i < coption->option->num_choices; i++)
{
/* Are custom values enabled ? */
if (g_str_equal (coption->option->choices[i].choice, "Custom"))
custom_values_enabled = TRUE;
/* Is the value among available choices ? */
if (g_str_equal (coption->option->choices[i].choice, value))
found = TRUE;
}
if (custom_values_enabled && !found)
custom_value = TRUE;
}
}
/* Add "Custom." prefix to custom values if not already added. */
if (custom_value && !g_str_has_prefix (value, "Custom."))
{
new_value = g_strdup_printf ("Custom.%s", value);
gtk_cups_request_encode_option (request, key, new_value);
g_free (new_value);
}
else
gtk_cups_request_encode_option (request, key, value);
}
static void
gtk_print_backend_cups_print_stream (GtkPrintBackend *print_backend,
GtkPrintJob *job,
GIOChannel *data_io,
GtkPrintJobCompleteFunc callback,
gpointer user_data,
GDestroyNotify dnotify)
{
GtkPrinterCups *cups_printer;
CupsPrintStreamData *ps;
CupsOptionsData *options_data;
GtkCupsRequest *request = NULL;
GtkPrintSettings *settings;
const gchar *title;
char printer_absolute_uri[HTTP_MAX_URI];
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
cups_printer = GTK_PRINTER_CUPS (gtk_print_job_get_printer (job));
settings = gtk_print_job_get_settings (job);
request = gtk_cups_request_new_with_username (NULL,
GTK_CUPS_POST,
IPP_PRINT_JOB,
data_io,
NULL,
cups_printer->device_uri,
GTK_PRINT_BACKEND_CUPS (print_backend)->username);
#ifdef HAVE_CUPS_API_1_6
if (cups_printer->avahi_browsed)
{
http_t *http;
http = httpConnect (cups_printer->hostname, cups_printer->port);
if (http)
{
request = gtk_cups_request_new_with_username (http,
GTK_CUPS_POST,
IPP_PRINT_JOB,
data_io,
cups_printer->hostname,
cups_printer->device_uri,
GTK_PRINT_BACKEND_CUPS (print_backend)->username);
g_snprintf (printer_absolute_uri, HTTP_MAX_URI, "%s", cups_printer->printer_uri);
}
else
{
GError *error = NULL;
GTK_NOTE (PRINTING,
g_warning ("CUPS Backend: Error connecting to %s:%d",
cups_printer->hostname,
cups_printer->port));
error = g_error_new (gtk_print_error_quark (),
GTK_CUPS_ERROR_GENERAL,
"Error connecting to %s",
cups_printer->hostname);
gtk_print_job_set_status (job, GTK_PRINT_STATUS_FINISHED_ABORTED);
if (callback)
{
callback (job, user_data, error);
}
g_clear_error (&error);
return;
}
}
else
#endif
{
request = gtk_cups_request_new_with_username (NULL,
GTK_CUPS_POST,
IPP_PRINT_JOB,
data_io,
NULL,
cups_printer->device_uri,
GTK_PRINT_BACKEND_CUPS (print_backend)->username);
#if (CUPS_VERSION_MAJOR == 1 && CUPS_VERSION_MINOR >= 2) || CUPS_VERSION_MAJOR > 1
httpAssembleURIf (HTTP_URI_CODING_ALL,
printer_absolute_uri,
sizeof (printer_absolute_uri),
"ipp",
NULL,
"localhost",
ippPort (),
"/printers/%s",
gtk_printer_get_name (gtk_print_job_get_printer (job)));
#else
g_snprintf (printer_absolute_uri,
sizeof (printer_absolute_uri),
"ipp://localhost:%d/printers/%s",
ippPort (),
gtk_printer_get_name (gtk_print_job_get_printer (job)));
#endif
}
gtk_cups_request_set_ipp_version (request,
cups_printer->ipp_version_major,
cups_printer->ipp_version_minor);
gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION,
IPP_TAG_URI, "printer-uri",
NULL, printer_absolute_uri);
title = gtk_print_job_get_title (job);
if (title)
gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION,
IPP_TAG_NAME, "job-name",
NULL, title);
options_data = g_new0 (CupsOptionsData, 1);
options_data->request = request;
options_data->printer = cups_printer;
gtk_print_settings_foreach (settings, add_cups_options, options_data);
g_free (options_data);
ps = g_new0 (CupsPrintStreamData, 1);
ps->callback = callback;
ps->user_data = user_data;
ps->dnotify = dnotify;
ps->job = g_object_ref (job);
request->need_auth_info = cups_printer->auth_info_required != NULL;
request->auth_info_required = g_strdupv (cups_printer->auth_info_required);
cups_request_execute (GTK_PRINT_BACKEND_CUPS (print_backend),
request,
(GtkPrintCupsResponseCallbackFunc) cups_print_cb,
ps,
(GDestroyNotify)cups_free_print_stream_data);
}
void overwrite_and_free (gpointer data)
{
gchar *password = (gchar *) data;
if (password != NULL)
{
memset (password, 0, strlen (password));
g_free (password);
}
}
static void
gtk_print_backend_cups_init (GtkPrintBackendCups *backend_cups)
{
#ifdef HAVE_CUPS_API_1_6
gint i;
#endif
backend_cups->list_printers_poll = FALSE;
backend_cups->got_default_printer = FALSE;
backend_cups->list_printers_pending = FALSE;
backend_cups->list_printers_attempts = 0;
backend_cups->reading_ppds = 0;
backend_cups->requests = NULL;
backend_cups->auth = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, overwrite_and_free);
backend_cups->authentication_lock = FALSE;
backend_cups->covers = NULL;
backend_cups->number_of_covers = 0;
backend_cups->default_printer_poll = 0;
backend_cups->cups_connection_test = NULL;
backend_cups->username = NULL;
#ifdef HAVE_CUPS_API_1_6
backend_cups->dbus_connection = NULL;
backend_cups->avahi_default_printer = NULL;
backend_cups->avahi_service_browser_subscription_id = 0;
for (i = 0; i < 2; i++)
{
backend_cups->avahi_service_browser_paths[i] = NULL;
backend_cups->avahi_service_browser_subscription_ids[i] = 0;
}
#endif
cups_get_local_default_printer (backend_cups);
}
static void
gtk_print_backend_cups_finalize (GObject *object)
{
GtkPrintBackendCups *backend_cups;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: finalizing CUPS backend module\n"));
backend_cups = GTK_PRINT_BACKEND_CUPS (object);
g_free (backend_cups->default_printer);
backend_cups->default_printer = NULL;
g_strfreev (backend_cups->covers);
backend_cups->number_of_covers = 0;
gtk_cups_connection_test_free (backend_cups->cups_connection_test);
backend_cups->cups_connection_test = NULL;
g_hash_table_destroy (backend_cups->auth);
g_free (backend_cups->username);
#ifdef HAVE_CUPS_API_1_6
g_clear_object (&backend_cups->avahi_cancellable);
g_free (backend_cups->avahi_default_printer);
backend_cups->avahi_default_printer = NULL;
g_clear_object (&backend_cups->dbus_connection);
#endif
backend_parent_class->finalize (object);
}
static void
gtk_print_backend_cups_dispose (GObject *object)
{
GtkPrintBackendCups *backend_cups;
#ifdef HAVE_CUPS_API_1_6
gint i;
#endif
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
backend_cups = GTK_PRINT_BACKEND_CUPS (object);
if (backend_cups->list_printers_poll > 0)
g_source_remove (backend_cups->list_printers_poll);
backend_cups->list_printers_poll = 0;
backend_cups->list_printers_attempts = 0;
if (backend_cups->default_printer_poll > 0)
g_source_remove (backend_cups->default_printer_poll);
backend_cups->default_printer_poll = 0;
#ifdef HAVE_CUPS_API_1_6
g_cancellable_cancel (backend_cups->avahi_cancellable);
for (i = 0; i < 2; i++)
{
if (backend_cups->avahi_service_browser_subscription_ids[i] > 0)
{
g_dbus_connection_signal_unsubscribe (backend_cups->dbus_connection,
backend_cups->avahi_service_browser_subscription_ids[i]);
backend_cups->avahi_service_browser_subscription_ids[i] = 0;
}
if (backend_cups->avahi_service_browser_paths[i])
{
g_dbus_connection_call (backend_cups->dbus_connection,
AVAHI_BUS,
backend_cups->avahi_service_browser_paths[i],
AVAHI_SERVICE_BROWSER_IFACE,
"Free",
NULL,
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
NULL,
NULL);
g_free (backend_cups->avahi_service_browser_paths[i]);
backend_cups->avahi_service_browser_paths[i] = NULL;
}
}
if (backend_cups->avahi_service_browser_subscription_id > 0)
{
g_dbus_connection_signal_unsubscribe (backend_cups->dbus_connection,
backend_cups->avahi_service_browser_subscription_id);
backend_cups->avahi_service_browser_subscription_id = 0;
}
#endif
backend_parent_class->dispose (object);
}
static gboolean
is_address_local (const gchar *address)
{
if (address[0] == '/' ||
strcmp (address, "127.0.0.1") == 0 ||
strcmp (address, "[::1]") == 0)
return TRUE;
else
return FALSE;
}
#ifndef HAVE_CUPS_API_1_2
/* Included from CUPS library because of backward compatibility */
const char *
httpGetHostname(http_t *http,
char *s,
int slen)
{
struct hostent *host;
if (!s || slen <= 1)
return (NULL);
if (http)
{
if (http->hostname[0] == '/')
g_strlcpy (s, "localhost", slen);
else
g_strlcpy (s, http->hostname, slen);
}
else
{
if (gethostname (s, slen) < 0)
g_strlcpy (s, "localhost", slen);
if (!strchr (s, '.'))
{
if ((host = gethostbyname (s)) != NULL && host->h_name)
g_strlcpy (s, host->h_name, slen);
}
}
return (s);
}
#endif
static void
gtk_print_backend_cups_set_password (GtkPrintBackend *backend,
gchar **auth_info_required,
gchar **auth_info)
{
GtkPrintBackendCups *cups_backend = GTK_PRINT_BACKEND_CUPS (backend);
GList *l;
char dispatch_hostname[HTTP_MAX_URI];
gchar *key;
gchar *username = NULL;
gchar *hostname = NULL;
gchar *password = NULL;
gint length;
gint i;
length = g_strv_length (auth_info_required);
if (auth_info != NULL)
for (i = 0; i < length; i++)
{
if (g_strcmp0 (auth_info_required[i], "username") == 0)
username = g_strdup (auth_info[i]);
else if (g_strcmp0 (auth_info_required[i], "hostname") == 0)
hostname = g_strdup (auth_info[i]);
else if (g_strcmp0 (auth_info_required[i], "password") == 0)
password = g_strdup (auth_info[i]);
}
if (hostname != NULL && username != NULL && password != NULL)
{
key = g_strconcat (username, "@", hostname, NULL);
g_hash_table_insert (cups_backend->auth, key, g_strdup (password));
}
g_free (cups_backend->username);
cups_backend->username = g_strdup (username);
GTK_NOTE (PRINTING,
g_print ("CUPS backend: storing password for %s\n", key));
for (l = cups_backend->requests; l; l = l->next)
{
GtkPrintCupsDispatchWatch *dispatch = l->data;
httpGetHostname (dispatch->request->http, dispatch_hostname, sizeof (dispatch_hostname));
if (is_address_local (dispatch_hostname))
strcpy (dispatch_hostname, "localhost");
if (dispatch->request->need_auth_info)
{
if (auth_info != NULL)
{
dispatch->request->auth_info = g_new0 (gchar *, length + 1);
for (i = 0; i < length; i++)
dispatch->request->auth_info[i] = g_strdup (auth_info[i]);
}
dispatch->backend->authentication_lock = FALSE;
dispatch->request->need_auth_info = FALSE;
}
else if (dispatch->request->password_state == GTK_CUPS_PASSWORD_REQUESTED || auth_info == NULL)
{
overwrite_and_free (dispatch->request->password);
dispatch->request->password = g_strdup (password);
g_free (dispatch->request->username);
dispatch->request->username = g_strdup (username);
dispatch->request->password_state = GTK_CUPS_PASSWORD_HAS;
dispatch->backend->authentication_lock = FALSE;
}
}
}
static gboolean
request_password (gpointer data)
{
GtkPrintCupsDispatchWatch *dispatch = data;
const gchar *username;
gchar *password;
gchar *prompt = NULL;
gchar *key = NULL;
char hostname[HTTP_MAX_URI];
gchar **auth_info_required;
gchar **auth_info_default;
gchar **auth_info_display;
gboolean *auth_info_visible;
gint length = 3;
gint i;
if (dispatch->backend->authentication_lock)
return FALSE;
httpGetHostname (dispatch->request->http, hostname, sizeof (hostname));
if (is_address_local (hostname))
strcpy (hostname, "localhost");
if (dispatch->backend->username != NULL)
username = dispatch->backend->username;
else
username = cupsUser ();
auth_info_required = g_new0 (gchar*, length + 1);
auth_info_required[0] = g_strdup ("hostname");
auth_info_required[1] = g_strdup ("username");
auth_info_required[2] = g_strdup ("password");
auth_info_default = g_new0 (gchar*, length + 1);
auth_info_default[0] = g_strdup (hostname);
auth_info_default[1] = g_strdup (username);
auth_info_display = g_new0 (gchar*, length + 1);
auth_info_display[1] = g_strdup (_("Username:"));
auth_info_display[2] = g_strdup (_("Password:"));
auth_info_visible = g_new0 (gboolean, length + 1);
auth_info_visible[1] = TRUE;
key = g_strconcat (username, "@", hostname, NULL);
password = g_hash_table_lookup (dispatch->backend->auth, key);
if (password && dispatch->request->password_state != GTK_CUPS_PASSWORD_NOT_VALID)
{
GTK_NOTE (PRINTING,
g_print ("CUPS backend: using stored password for %s\n", key));
overwrite_and_free (dispatch->request->password);
dispatch->request->password = g_strdup (password);
g_free (dispatch->request->username);
dispatch->request->username = g_strdup (username);
dispatch->request->password_state = GTK_CUPS_PASSWORD_HAS;
}
else
{
const char *job_title = gtk_cups_request_ipp_get_string (dispatch->request, IPP_TAG_NAME, "job-name");
const char *printer_uri = gtk_cups_request_ipp_get_string (dispatch->request, IPP_TAG_URI, "printer-uri");
char *printer_name = NULL;
if (printer_uri != NULL && strrchr (printer_uri, '/') != NULL)
printer_name = g_strdup (strrchr (printer_uri, '/') + 1);
if (dispatch->request->password_state == GTK_CUPS_PASSWORD_NOT_VALID)
g_hash_table_remove (dispatch->backend->auth, key);
dispatch->request->password_state = GTK_CUPS_PASSWORD_REQUESTED;
dispatch->backend->authentication_lock = TRUE;
switch (ippGetOperation (dispatch->request->ipp_request))
{
case IPP_PRINT_JOB:
if (job_title != NULL && printer_name != NULL)
prompt = g_strdup_printf ( _("Authentication is required to print document '%s' on printer %s"), job_title, printer_name);
else
prompt = g_strdup_printf ( _("Authentication is required to print a document on %s"), hostname);
break;
case IPP_GET_JOB_ATTRIBUTES:
if (job_title != NULL)
prompt = g_strdup_printf ( _("Authentication is required to get attributes of job '%s'"), job_title);
else
prompt = g_strdup ( _("Authentication is required to get attributes of a job"));
break;
case IPP_GET_PRINTER_ATTRIBUTES:
if (printer_name != NULL)
prompt = g_strdup_printf ( _("Authentication is required to get attributes of printer %s"), printer_name);
else
prompt = g_strdup ( _("Authentication is required to get attributes of a printer"));
break;
case CUPS_GET_DEFAULT:
prompt = g_strdup_printf ( _("Authentication is required to get default printer of %s"), hostname);
break;
case CUPS_GET_PRINTERS:
prompt = g_strdup_printf ( _("Authentication is required to get printers from %s"), hostname);
break;
default:
/* work around gcc warning about 0 not being a value for this enum */
if (ippGetOperation (dispatch->request->ipp_request) == 0)
prompt = g_strdup_printf ( _("Authentication is required to get a file from %s"), hostname);
else
prompt = g_strdup_printf ( _("Authentication is required on %s"), hostname);
break;
}
g_free (printer_name);
g_signal_emit_by_name (dispatch->backend, "request-password",
auth_info_required, auth_info_default, auth_info_display, auth_info_visible, prompt);
g_free (prompt);
}
for (i = 0; i < length; i++)
{
g_free (auth_info_required[i]);
g_free (auth_info_default[i]);
g_free (auth_info_display[i]);
}
g_free (auth_info_required);
g_free (auth_info_default);
g_free (auth_info_display);
g_free (auth_info_visible);
g_free (key);
return FALSE;
}
static void
cups_dispatch_add_poll (GSource *source)
{
GtkPrintCupsDispatchWatch *dispatch;
GtkCupsPollState poll_state;
dispatch = (GtkPrintCupsDispatchWatch *) source;
poll_state = gtk_cups_request_get_poll_state (dispatch->request);
/* Remove the old source if the poll state changed. */
if (poll_state != dispatch->poll_state && dispatch->data_poll != NULL)
{
g_source_remove_poll (source, dispatch->data_poll);
g_free (dispatch->data_poll);
dispatch->data_poll = NULL;
}
if (dispatch->request->http != NULL)
{
if (dispatch->data_poll == NULL)
{
dispatch->data_poll = g_new0 (GPollFD, 1);
dispatch->poll_state = poll_state;
if (poll_state == GTK_CUPS_HTTP_READ)
dispatch->data_poll->events = G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_PRI;
else if (poll_state == GTK_CUPS_HTTP_WRITE)
dispatch->data_poll->events = G_IO_OUT | G_IO_ERR;
else
dispatch->data_poll->events = 0;
#ifdef HAVE_CUPS_API_1_2
dispatch->data_poll->fd = httpGetFd (dispatch->request->http);
#else
dispatch->data_poll->fd = dispatch->request->http->fd;
#endif
g_source_add_poll (source, dispatch->data_poll);
}
}
}
static gboolean
check_auth_info (gpointer user_data)
{
GtkPrintCupsDispatchWatch *dispatch;
dispatch = (GtkPrintCupsDispatchWatch *) user_data;
if (!dispatch->request->need_auth_info)
{
if (dispatch->request->auth_info == NULL)
{
dispatch->callback (GTK_PRINT_BACKEND (dispatch->backend),
gtk_cups_request_get_result (dispatch->request),
dispatch->callback_data);
g_source_destroy ((GSource *) dispatch);
}
else
{
gint length;
gint i;
length = g_strv_length (dispatch->request->auth_info_required);
gtk_cups_request_ipp_add_strings (dispatch->request,
IPP_TAG_JOB,
IPP_TAG_TEXT,
"auth-info",
length,
NULL,
(const char * const *) dispatch->request->auth_info);
g_source_attach ((GSource *) dispatch, NULL);
g_source_unref ((GSource *) dispatch);
for (i = 0; i < length; i++)
overwrite_and_free (dispatch->request->auth_info[i]);
g_free (dispatch->request->auth_info);
dispatch->request->auth_info = NULL;
}
return FALSE;
}
return TRUE;
}
static gboolean
request_auth_info (gpointer user_data)
{
GtkPrintCupsDispatchWatch *dispatch;
const char *job_title;
const char *printer_uri;
gchar *prompt = NULL;
char *printer_name = NULL;
gint length;
gint i;
gboolean *auth_info_visible = NULL;
gchar **auth_info_default = NULL;
gchar **auth_info_display = NULL;
dispatch = (GtkPrintCupsDispatchWatch *) user_data;
if (dispatch->backend->authentication_lock)
return FALSE;
job_title = gtk_cups_request_ipp_get_string (dispatch->request, IPP_TAG_NAME, "job-name");
printer_uri = gtk_cups_request_ipp_get_string (dispatch->request, IPP_TAG_URI, "printer-uri");
length = g_strv_length (dispatch->request->auth_info_required);
auth_info_visible = g_new0 (gboolean, length);
auth_info_default = g_new0 (gchar *, length + 1);
auth_info_display = g_new0 (gchar *, length + 1);
for (i = 0; i < length; i++)
{
if (g_strcmp0 (dispatch->request->auth_info_required[i], "domain") == 0)
{
auth_info_display[i] = g_strdup (_("Domain:"));
auth_info_default[i] = g_strdup ("WORKGROUP");
auth_info_visible[i] = TRUE;
}
else if (g_strcmp0 (dispatch->request->auth_info_required[i], "username") == 0)
{
auth_info_display[i] = g_strdup (_("Username:"));
if (dispatch->backend->username != NULL)
auth_info_default[i] = g_strdup (dispatch->backend->username);
else
auth_info_default[i] = g_strdup (cupsUser ());
auth_info_visible[i] = TRUE;
}
else if (g_strcmp0 (dispatch->request->auth_info_required[i], "password") == 0)
{
auth_info_display[i] = g_strdup (_("Password:"));
auth_info_visible[i] = FALSE;
}
}
if (printer_uri != NULL && strrchr (printer_uri, '/') != NULL)
printer_name = g_strdup (strrchr (printer_uri, '/') + 1);
dispatch->backend->authentication_lock = TRUE;
if (job_title != NULL)
{
if (printer_name != NULL)
prompt = g_strdup_printf ( _("Authentication is required to print document '%s' on printer %s"), job_title, printer_name);
else
prompt = g_strdup_printf ( _("Authentication is required to print document '%s'"), job_title);
}
else
{
if (printer_name != NULL)
prompt = g_strdup_printf ( _("Authentication is required to print this document on printer %s"), printer_name);
else
prompt = g_strdup ( _("Authentication is required to print this document"));
}
g_signal_emit_by_name (dispatch->backend, "request-password",
dispatch->request->auth_info_required,
auth_info_default,
auth_info_display,
auth_info_visible,
prompt);
for (i = 0; i < length; i++)
{
g_free (auth_info_default[i]);
g_free (auth_info_display[i]);
}
g_free (auth_info_default);
g_free (auth_info_display);
g_free (printer_name);
g_free (prompt);
g_idle_add (check_auth_info, user_data);
return FALSE;
}
static gboolean
cups_dispatch_watch_check (GSource *source)
{
GtkPrintCupsDispatchWatch *dispatch;
GtkCupsPollState poll_state;
gboolean result;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s <source %p>\n", G_STRFUNC, source));
dispatch = (GtkPrintCupsDispatchWatch *) source;
poll_state = gtk_cups_request_get_poll_state (dispatch->request);
if (poll_state != GTK_CUPS_HTTP_IDLE && !dispatch->request->need_password)
if (!(dispatch->data_poll->revents & dispatch->data_poll->events))
return FALSE;
result = gtk_cups_request_read_write (dispatch->request, FALSE);
if (result && dispatch->data_poll != NULL)
{
g_source_remove_poll (source, dispatch->data_poll);
g_free (dispatch->data_poll);
dispatch->data_poll = NULL;
}
if (dispatch->request->need_password && dispatch->request->password_state != GTK_CUPS_PASSWORD_REQUESTED)
{
dispatch->request->need_password = FALSE;
g_idle_add (request_password, dispatch);
result = FALSE;
}
return result;
}
static gboolean
cups_dispatch_watch_prepare (GSource *source,
gint *timeout_)
{
GtkPrintCupsDispatchWatch *dispatch;
gboolean result;
dispatch = (GtkPrintCupsDispatchWatch *) source;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s <source %p>\n", G_STRFUNC, source));
*timeout_ = -1;
result = gtk_cups_request_read_write (dispatch->request, TRUE);
cups_dispatch_add_poll (source);
return result;
}
static gboolean
cups_dispatch_watch_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
GtkPrintCupsDispatchWatch *dispatch;
GtkPrintCupsResponseCallbackFunc ep_callback;
GtkCupsResult *result;
g_assert (callback != NULL);
ep_callback = (GtkPrintCupsResponseCallbackFunc) callback;
dispatch = (GtkPrintCupsDispatchWatch *) source;
result = gtk_cups_request_get_result (dispatch->request);
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s <source %p>\n", G_STRFUNC, source));
if (gtk_cups_result_is_error (result))
{
GTK_NOTE (PRINTING,
g_print("Error result: %s (type %i, status %i, code %i)\n",
gtk_cups_result_get_error_string (result),
gtk_cups_result_get_error_type (result),
gtk_cups_result_get_error_status (result),
gtk_cups_result_get_error_code (result)));
}
ep_callback (GTK_PRINT_BACKEND (dispatch->backend), result, user_data);
return FALSE;
}
static void
cups_dispatch_watch_finalize (GSource *source)
{
GtkPrintCupsDispatchWatch *dispatch;
GtkCupsResult *result;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s <source %p>\n", G_STRFUNC, source));
dispatch = (GtkPrintCupsDispatchWatch *) source;
result = gtk_cups_request_get_result (dispatch->request);
if (gtk_cups_result_get_error_type (result) == GTK_CUPS_ERROR_AUTH)
{
const gchar *username;
gchar hostname[HTTP_MAX_URI];
gchar *key;
httpGetHostname (dispatch->request->http, hostname, sizeof (hostname));
if (is_address_local (hostname))
strcpy (hostname, "localhost");
if (dispatch->backend->username != NULL)
username = dispatch->backend->username;
else
username = cupsUser ();
key = g_strconcat (username, "@", hostname, NULL);
GTK_NOTE (PRINTING,
g_print ("CUPS backend: removing stored password for %s\n", key));
g_hash_table_remove (dispatch->backend->auth, key);
g_free (key);
if (dispatch->backend)
dispatch->backend->authentication_lock = FALSE;
}
gtk_cups_request_free (dispatch->request);
if (dispatch->backend)
{
/* We need to unref this at idle time, because it might be the
* last reference to this module causing the code to be
* unloaded (including this particular function!)
* Update: Doing this at idle caused a deadlock taking the
* mainloop context lock while being in a GSource callout for
* multithreaded apps. So, for now we just disable unloading
* of print backends. See _gtk_print_backend_create for the
* disabling.
*/
dispatch->backend->requests = g_list_remove (dispatch->backend->requests, dispatch);
g_object_unref (dispatch->backend);
dispatch->backend = NULL;
}
if (dispatch->data_poll)
{
g_source_remove_poll (source, dispatch->data_poll);
g_free (dispatch->data_poll);
dispatch->data_poll = NULL;
}
}
static GSourceFuncs _cups_dispatch_watch_funcs = {
cups_dispatch_watch_prepare,
cups_dispatch_watch_check,
cups_dispatch_watch_dispatch,
cups_dispatch_watch_finalize
};
static void
cups_request_execute (GtkPrintBackendCups *print_backend,
GtkCupsRequest *request,
GtkPrintCupsResponseCallbackFunc callback,
gpointer user_data,
GDestroyNotify notify)
{
GtkPrintCupsDispatchWatch *dispatch;
dispatch = (GtkPrintCupsDispatchWatch *) g_source_new (&_cups_dispatch_watch_funcs,
sizeof (GtkPrintCupsDispatchWatch));
g_source_set_name (&dispatch->source, "GTK+ CUPS backend");
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s <source %p> - Executing cups request on server '%s' and resource '%s'\n", G_STRFUNC, dispatch, request->server, request->resource));
dispatch->request = request;
dispatch->backend = g_object_ref (print_backend);
dispatch->poll_state = GTK_CUPS_HTTP_IDLE;
dispatch->data_poll = NULL;
dispatch->callback = NULL;
dispatch->callback_data = NULL;
print_backend->requests = g_list_prepend (print_backend->requests, dispatch);
g_source_set_callback ((GSource *) dispatch, (GSourceFunc) callback, user_data, notify);
if (request->need_auth_info)
{
dispatch->callback = callback;
dispatch->callback_data = user_data;
request_auth_info (dispatch);
}
else
{
g_source_attach ((GSource *) dispatch, NULL);
g_source_unref ((GSource *) dispatch);
}
}
#if 0
static void
cups_request_printer_info_cb (GtkPrintBackendCups *backend,
GtkCupsResult *result,
gpointer user_data)
{
ipp_attribute_t *attr;
ipp_t *response;
gchar *printer_name;
GtkPrinterCups *cups_printer;
GtkPrinter *printer;
gchar *loc;
gchar *desc;
gchar *state_msg;
int job_count;
gboolean status_changed;
g_assert (GTK_IS_PRINT_BACKEND_CUPS (backend));
printer_name = (gchar *)user_data;
printer = gtk_print_backend_find_printer (GTK_PRINT_BACKEND (backend),
printer_name);
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s - Got printer info for printer '%s'\n", G_STRFUNC, printer_name));
if (!printer)
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Could not find printer called '%s'\n", printer_name));
return;
}
cups_printer = GTK_PRINTER_CUPS (printer);
if (gtk_cups_result_is_error (result))
{
if (gtk_printer_is_new (printer))
{
gtk_print_backend_remove_printer (GTK_PRINT_BACKEND (backend),
printer);
return;
}
else
return; /* TODO: mark as inactive printer */
}
response = gtk_cups_result_get_response (result);
/* TODO: determine printer type and use correct icon */
gtk_printer_set_icon_name (printer, "gtk-print");
state_msg = "";
loc = "";
desc = "";
job_count = 0;
for (attr = response->attrs; attr != NULL; attr = attr->next)
{
if (!attr->name)
continue;
_CUPS_MAP_ATTR_STR (attr, loc, "printer-location");
_CUPS_MAP_ATTR_STR (attr, desc, "printer-info");
_CUPS_MAP_ATTR_STR (attr, state_msg, "printer-state-message");
_CUPS_MAP_ATTR_INT (attr, cups_printer->state, "printer-state");
_CUPS_MAP_ATTR_INT (attr, job_count, "queued-job-count");
}
status_changed = gtk_printer_set_job_count (printer, job_count);
status_changed |= gtk_printer_set_location (printer, loc);
status_changed |= gtk_printer_set_description (printer, desc);
status_changed |= gtk_printer_set_state_message (printer, state_msg);
if (status_changed)
g_signal_emit_by_name (GTK_PRINT_BACKEND (backend),
"printer-status-changed", printer);
}
static void
cups_request_printer_info (GtkPrintBackendCups *print_backend,
const gchar *printer_name)
{
GtkCupsRequest *request;
gchar *printer_uri;
static const char * const pattrs[] = /* Attributes we're interested in */
{
"printer-location",
"printer-info",
"printer-state-message",
"printer-state",
"queued-job-count",
"job-sheets-supported",
"job-sheets-default"
};
request = gtk_cups_request_new_with_username (NULL,
GTK_CUPS_POST,
IPP_GET_PRINTER_ATTRIBUTES,
NULL,
NULL,
NULL,
print_backend->username);
printer_uri = g_strdup_printf ("ipp://localhost/printers/%s",
printer_name);
gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_URI,
"printer-uri", NULL, printer_uri);
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s - Requesting printer info for URI '%s'\n", G_STRFUNC, printer_uri));
g_free (printer_uri);
gtk_cups_request_ipp_add_strings (request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes", G_N_ELEMENTS (pattrs),
NULL, pattrs);
cups_request_execute (print_backend,
request,
(GtkPrintCupsResponseCallbackFunc) cups_request_printer_info_cb,
g_strdup (printer_name),
(GDestroyNotify) g_free);
}
#endif
typedef struct {
GtkPrintBackendCups *print_backend;
GtkPrintJob *job;
int job_id;
int counter;
} CupsJobPollData;
static void
job_object_died (gpointer user_data,
GObject *where_the_object_was)
{
CupsJobPollData *data = user_data;
data->job = NULL;
}
static void
cups_job_poll_data_free (CupsJobPollData *data)
{
if (data->job)
g_object_weak_unref (G_OBJECT (data->job), job_object_died, data);
g_free (data);
}
static void
cups_request_job_info_cb (GtkPrintBackendCups *print_backend,
GtkCupsResult *result,
gpointer user_data)
{
CupsJobPollData *data = user_data;
ipp_attribute_t *attr;
ipp_t *response;
int state;
gboolean done;
GDK_THREADS_ENTER ();
if (data->job == NULL)
{
cups_job_poll_data_free (data);
goto done;
}
data->counter++;
response = gtk_cups_result_get_response (result);
state = 0;
#ifdef HAVE_CUPS_API_1_6
attr = ippFindAttribute (response, "job-state", IPP_TAG_ENUM);
state = ippGetInteger (attr, 0);
#else
for (attr = response->attrs; attr != NULL; attr = attr->next)
{
if (!attr->name)
continue;
_CUPS_MAP_ATTR_INT (attr, state, "job-state");
}
#endif
done = FALSE;
switch (state)
{
case IPP_JOB_PENDING:
case IPP_JOB_HELD:
case IPP_JOB_STOPPED:
gtk_print_job_set_status (data->job,
GTK_PRINT_STATUS_PENDING);
break;
case IPP_JOB_PROCESSING:
gtk_print_job_set_status (data->job,
GTK_PRINT_STATUS_PRINTING);
break;
default:
case IPP_JOB_CANCELLED:
case IPP_JOB_ABORTED:
gtk_print_job_set_status (data->job,
GTK_PRINT_STATUS_FINISHED_ABORTED);
done = TRUE;
break;
case 0:
case IPP_JOB_COMPLETED:
gtk_print_job_set_status (data->job,
GTK_PRINT_STATUS_FINISHED);
done = TRUE;
break;
}
if (!done && data->job != NULL)
{
guint32 timeout;
if (data->counter < 5)
timeout = 100;
else if (data->counter < 10)
timeout = 500;
else
timeout = 1000;
g_timeout_add (timeout, cups_job_info_poll_timeout, data);
}
else
cups_job_poll_data_free (data);
done:
GDK_THREADS_LEAVE ();
}
static void
cups_request_job_info (CupsJobPollData *data)
{
GtkCupsRequest *request;
gchar *job_uri;
request = gtk_cups_request_new_with_username (NULL,
GTK_CUPS_POST,
IPP_GET_JOB_ATTRIBUTES,
NULL,
NULL,
NULL,
data->print_backend->username);
job_uri = g_strdup_printf ("ipp://localhost/jobs/%d", data->job_id);
gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_URI,
"job-uri", NULL, job_uri);
g_free (job_uri);
cups_request_execute (data->print_backend,
request,
(GtkPrintCupsResponseCallbackFunc) cups_request_job_info_cb,
data,
NULL);
}
static gboolean
cups_job_info_poll_timeout (gpointer user_data)
{
CupsJobPollData *data = user_data;
if (data->job == NULL)
cups_job_poll_data_free (data);
else
cups_request_job_info (data);
return FALSE;
}
static void
cups_begin_polling_info (GtkPrintBackendCups *print_backend,
GtkPrintJob *job,
gint job_id)
{
CupsJobPollData *data;
data = g_new0 (CupsJobPollData, 1);
data->print_backend = print_backend;
data->job = job;
data->job_id = job_id;
data->counter = 0;
g_object_weak_ref (G_OBJECT (job), job_object_died, data);
cups_request_job_info (data);
}
static void
mark_printer_inactive (GtkPrinter *printer,
GtkPrintBackend *backend)
{
gtk_printer_set_is_active (printer, FALSE);
g_signal_emit_by_name (backend, "printer-removed", printer);
}
static gint
find_printer (GtkPrinter *printer,
const gchar *find_name)
{
const gchar *printer_name;
printer_name = gtk_printer_get_name (printer);
return g_ascii_strcasecmp (printer_name, find_name);
}
/* Printer messages we're interested in */
static const char * const printer_messages[] =
{
"toner-low",
"toner-empty",
"developer-low",
"developer-empty",
"marker-supply-low",
"marker-supply-empty",
"cover-open",
"door-open",
"media-low",
"media-empty",
"offline",
"other"
};
/* Our translatable versions of the printer messages */
static const char * printer_strings[] =
{
N_("Printer '%s' is low on toner."),
N_("Printer '%s' has no toner left."),
/* Translators: "Developer" like on photo development context */
N_("Printer '%s' is low on developer."),
/* Translators: "Developer" like on photo development context */
N_("Printer '%s' is out of developer."),
/* Translators: "marker" is one color bin of the printer */
N_("Printer '%s' is low on at least one marker supply."),
/* Translators: "marker" is one color bin of the printer */
N_("Printer '%s' is out of at least one marker supply."),
N_("The cover is open on printer '%s'."),
N_("The door is open on printer '%s'."),
N_("Printer '%s' is low on paper."),
N_("Printer '%s' is out of paper."),
N_("Printer '%s' is currently offline."),
N_("There is a problem on printer '%s'.")
};
/* Attributes we're interested in for printers */
static const char * const printer_attrs[] =
{
"printer-name",
"printer-uri-supported",
"member-uris",
"printer-location",
"printer-info",
"printer-state-message",
"printer-state-reasons",
"printer-state",
"queued-job-count",
"printer-is-accepting-jobs",
"job-sheets-supported",
"job-sheets-default",
"printer-type",
"auth-info-required",
"number-up-default",
"ipp-versions-supported",
"multiple-document-handling-supported",
"copies-supported",
"number-up-supported"
};
typedef enum
{
GTK_PRINTER_STATE_LEVEL_NONE = 0,
GTK_PRINTER_STATE_LEVEL_INFO = 1,
GTK_PRINTER_STATE_LEVEL_WARNING = 2,
GTK_PRINTER_STATE_LEVEL_ERROR = 3
} PrinterStateLevel;
typedef struct
{
const gchar *printer_name;
const gchar *printer_uri;
const gchar *member_uris;
const gchar *location;
const gchar *description;
gchar *state_msg;
const gchar *reason_msg;
PrinterStateLevel reason_level;
gint state;
gint job_count;
gboolean is_paused;
gboolean is_accepting_jobs;
const gchar *default_cover_before;
const gchar *default_cover_after;
gboolean default_printer;
gboolean got_printer_type;
gboolean remote_printer;
#ifdef HAVE_CUPS_API_1_6
gboolean avahi_printer;
#endif
gchar **auth_info_required;
guchar ipp_version_major;
guchar ipp_version_minor;
gboolean supports_copies;
gboolean supports_collate;
gboolean supports_number_up;
} PrinterSetupInfo;
static void
get_ipp_version (const char *ipp_version_string,
guchar *ipp_version_major,
guchar *ipp_version_minor)
{
gchar **ipp_version_strv;
gchar *endptr;
*ipp_version_major = 1;
*ipp_version_minor = 1;
if (ipp_version_string)
{
ipp_version_strv = g_strsplit (ipp_version_string, ".", 0);
if (ipp_version_strv)
{
if (g_strv_length (ipp_version_strv) == 2)
{
*ipp_version_major = (guchar) g_ascii_strtoull (ipp_version_strv[0], &endptr, 10);
if (endptr == ipp_version_strv[0])
*ipp_version_major = 1;
*ipp_version_minor = (guchar) g_ascii_strtoull (ipp_version_strv[1], &endptr, 10);
if (endptr == ipp_version_strv[1])
*ipp_version_minor = 1;
}
g_strfreev (ipp_version_strv);
}
}
}
static void
get_server_ipp_version (guchar *ipp_version_major,
guchar *ipp_version_minor)
{
*ipp_version_major = 1;
*ipp_version_minor = 1;
if (IPP_VERSION && strlen (IPP_VERSION) == 2)
{
*ipp_version_major = (unsigned char) IPP_VERSION[0];
*ipp_version_minor = (unsigned char) IPP_VERSION[1];
}
}
static gint
ipp_version_cmp (guchar ipp_version_major1,
guchar ipp_version_minor1,
guchar ipp_version_major2,
guchar ipp_version_minor2)
{
if (ipp_version_major1 == ipp_version_major2 &&
ipp_version_minor1 == ipp_version_minor2)
{
return 0;
}
else if (ipp_version_major1 < ipp_version_major2 ||
(ipp_version_major1 == ipp_version_major2 &&
ipp_version_minor1 < ipp_version_minor2))
{
return -1;
}
else
{
return 1;
}
}
static void
cups_printer_handle_attribute (GtkPrintBackendCups *cups_backend,
ipp_attribute_t *attr,
PrinterSetupInfo *info)
{
gint i,j;
if (strcmp (ippGetName (attr), "printer-name") == 0 &&
ippGetValueTag (attr) == IPP_TAG_NAME)
info->printer_name = ippGetString (attr, 0, NULL);
else if (strcmp (ippGetName (attr), "printer-uri-supported") == 0 &&
ippGetValueTag (attr) == IPP_TAG_URI)
info->printer_uri = ippGetString (attr, 0, NULL);
else if (strcmp (ippGetName (attr), "member-uris") == 0 &&
ippGetValueTag (attr) == IPP_TAG_URI)
info->member_uris = ippGetString (attr, 0, NULL);
else if (strcmp (ippGetName (attr), "printer-location") == 0)
info->location = ippGetString (attr, 0, NULL);
else if (strcmp (ippGetName (attr), "printer-info") == 0)
info->description = ippGetString (attr, 0, NULL);
else if (strcmp (ippGetName (attr), "printer-state-message") == 0)
info->state_msg = g_strdup (ippGetString (attr, 0, NULL));
else if (strcmp (ippGetName (attr), "printer-state-reasons") == 0)
/* Store most important reason to reason_msg and set
its importance at printer_state_reason_level */
{
for (i = 0; i < ippGetCount (attr); i++)
{
gboolean interested_in = FALSE;
if (strcmp (ippGetString (attr, i, NULL), "none") == 0)
continue;
/* Sets is_paused flag for paused printer. */
if (strcmp (ippGetString (attr, i, NULL), "paused") == 0)
{
info->is_paused = TRUE;
}
for (j = 0; j < G_N_ELEMENTS (printer_messages); j++)
if (strncmp (ippGetString (attr, i, NULL), printer_messages[j], strlen (printer_messages[j])) == 0)
{
interested_in = TRUE;
break;
}
if (!interested_in)
continue;
if (g_str_has_suffix (ippGetString (attr, i, NULL), "-report"))
{
if (info->reason_level <= GTK_PRINTER_STATE_LEVEL_INFO)
{
info->reason_msg = ippGetString (attr, i, NULL);
info->reason_level = GTK_PRINTER_STATE_LEVEL_INFO;
}
}
else if (g_str_has_suffix (ippGetString (attr, i, NULL), "-warning"))
{
if (info->reason_level <= GTK_PRINTER_STATE_LEVEL_WARNING)
{
info->reason_msg = ippGetString (attr, i, NULL);
info->reason_level = GTK_PRINTER_STATE_LEVEL_WARNING;
}
}
else /* It is error in the case of no suffix. */
{
info->reason_msg = ippGetString (attr, i, NULL);
info->reason_level = GTK_PRINTER_STATE_LEVEL_ERROR;
}
}
}
else if (strcmp (ippGetName (attr), "printer-state") == 0)
info->state = ippGetInteger (attr, 0);
else if (strcmp (ippGetName (attr), "queued-job-count") == 0)
info->job_count = ippGetInteger (attr, 0);
else if (strcmp (ippGetName (attr), "printer-is-accepting-jobs") == 0)
{
if (ippGetBoolean (attr, 0) == 1)
info->is_accepting_jobs = TRUE;
else
info->is_accepting_jobs = FALSE;
}
else if (strcmp (ippGetName (attr), "job-sheets-supported") == 0)
{
if (cups_backend->covers == NULL)
{
cups_backend->number_of_covers = ippGetCount (attr);
cups_backend->covers = g_new (char *, cups_backend->number_of_covers + 1);
for (i = 0; i < cups_backend->number_of_covers; i++)
cups_backend->covers[i] = g_strdup (ippGetString (attr, i, NULL));
cups_backend->covers[cups_backend->number_of_covers] = NULL;
}
}
else if (strcmp (ippGetName (attr), "job-sheets-default") == 0)
{
if (ippGetCount (attr) == 2)
{
info->default_cover_before = ippGetString (attr, 0, NULL);
info->default_cover_after = ippGetString (attr, 1, NULL);
}
}
else if (strcmp (ippGetName (attr), "printer-type") == 0)
{
info->got_printer_type = TRUE;
if (ippGetInteger (attr, 0) & 0x00020000)
info->default_printer = TRUE;
else
info->default_printer = FALSE;
if (ippGetInteger (attr, 0) & 0x00000002)
info->remote_printer = TRUE;
else
info->remote_printer = FALSE;
}
else if (strcmp (ippGetName (attr), "auth-info-required") == 0)
{
if (strcmp (ippGetString (attr, 0, NULL), "none") != 0)
{
info->auth_info_required = g_new0 (gchar *, ippGetCount (attr) + 1);
for (i = 0; i < ippGetCount (attr); i++)
info->auth_info_required[i] = g_strdup (ippGetString (attr, i, NULL));
}
}
else if (g_strcmp0 (ippGetName (attr), "ipp-versions-supported") == 0)
{
guchar server_ipp_version_major;
guchar server_ipp_version_minor;
guchar ipp_version_major;
guchar ipp_version_minor;
get_server_ipp_version (&server_ipp_version_major,
&server_ipp_version_minor);
for (i = 0; i < ippGetCount (attr); i++)
{
get_ipp_version (ippGetString (attr, i, NULL),
&ipp_version_major,
&ipp_version_minor);
if (ipp_version_cmp (ipp_version_major,
ipp_version_minor,
info->ipp_version_major,
info->ipp_version_minor) > 0 &&
ipp_version_cmp (ipp_version_major,
ipp_version_minor,
server_ipp_version_major,
server_ipp_version_minor) <= 0)
{
info->ipp_version_major = ipp_version_major;
info->ipp_version_minor = ipp_version_minor;
}
}
}
else if (g_strcmp0 (ippGetName (attr), "number-up-supported") == 0)
{
if (ippGetCount (attr) == 6)
{
info->supports_number_up = TRUE;
}
}
else if (g_strcmp0 (ippGetName (attr), "copies-supported") == 0)
{
int upper = 1;
ippGetRange (attr, 0, &upper);
if (upper > 1)
{
info->supports_copies = TRUE;
}
}
else if (g_strcmp0 (ippGetName (attr), "multiple-document-handling-supported") == 0)
{
for (i = 0; i < ippGetCount (attr); i++)
{
if (g_strcmp0 (ippGetString (attr, i, NULL), "separate-documents-collated-copies") == 0)
{
info->supports_collate = TRUE;
}
}
}
else
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Attribute %s ignored", ippGetName (attr)));
}
}
static GtkPrinter*
cups_create_printer (GtkPrintBackendCups *cups_backend,
PrinterSetupInfo *info)
{
GtkPrinterCups *cups_printer;
GtkPrinter *printer;
char uri[HTTP_MAX_URI]; /* Printer URI */
char method[HTTP_MAX_URI]; /* Method/scheme name */
char username[HTTP_MAX_URI]; /* Username:password */
char hostname[HTTP_MAX_URI]; /* Hostname */
char resource[HTTP_MAX_URI]; /* Resource name */
int port; /* Port number */
char *cups_server; /* CUPS server */
GtkPrintBackend *backend = GTK_PRINT_BACKEND (cups_backend);
cups_printer = gtk_printer_cups_new (info->printer_name, backend);
cups_printer->device_uri = g_strdup_printf ("/printers/%s",
info->printer_name);
/* Check to see if we are looking at a class */
if (info->member_uris)
{
cups_printer->printer_uri = g_strdup (info->member_uris);
/* TODO if member_uris is a class we need to recursivly find a printer */
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Found class with printer %s\n",
info->member_uris));
}
else
{
cups_printer->printer_uri = g_strdup (info->printer_uri);
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Found printer %s\n", info->printer_uri));
}
#ifdef HAVE_CUPS_API_1_2
httpSeparateURI (HTTP_URI_CODING_ALL, cups_printer->printer_uri,
method, sizeof (method),
username, sizeof (username),
hostname, sizeof (hostname),
&port,
resource, sizeof (resource));
#else
httpSeparate (cups_printer->printer_uri,
method,
username,
hostname,
&port,
resource);
#endif
if (strncmp (resource, "/printers/", 10) == 0)
{
cups_printer->ppd_name = g_strdup (resource + 10);
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Setting ppd name '%s' for printer/class '%s'\n", cups_printer->ppd_name, info->printer_name));
}
gethostname (uri, sizeof (uri));
cups_server = g_strdup (cupsServer());
if (strcasecmp (uri, hostname) == 0)
strcpy (hostname, "localhost");
/* if the cups server is local and listening at a unix domain socket
* then use the socket connection
*/
if ((strstr (hostname, "localhost") != NULL) &&
(cups_server[0] == '/'))
strcpy (hostname, cups_server);
g_free (cups_server);
cups_printer->default_cover_before = g_strdup (info->default_cover_before);
cups_printer->default_cover_after = g_strdup (info->default_cover_after);
cups_printer->hostname = g_strdup (hostname);
cups_printer->port = port;
cups_printer->auth_info_required = g_strdupv (info->auth_info_required);
g_strfreev (info->auth_info_required);
printer = GTK_PRINTER (cups_printer);
if (cups_backend->default_printer != NULL &&
strcmp (cups_backend->default_printer, gtk_printer_get_name (printer)) == 0)
gtk_printer_set_is_default (printer, TRUE);
#ifdef HAVE_CUPS_API_1_6
cups_printer->avahi_browsed = info->avahi_printer;
#endif
gtk_print_backend_add_printer (backend, printer);
return printer;
}
static void
set_printer_icon_name_from_info (GtkPrinter *printer,
PrinterSetupInfo *info)
{
/* Set printer icon according to importance
(none, report, warning, error - report is omitted). */
if (info->reason_level == GTK_PRINTER_STATE_LEVEL_ERROR)
gtk_printer_set_icon_name (printer, "printer-error");
else if (info->reason_level == GTK_PRINTER_STATE_LEVEL_WARNING)
gtk_printer_set_icon_name (printer, "printer-warning");
else if (gtk_printer_is_paused (printer))
gtk_printer_set_icon_name (printer, "printer-paused");
else
gtk_printer_set_icon_name (printer, "printer");
}
static void
set_info_state_message (PrinterSetupInfo *info)
{
gint i;
if (info->state_msg && strlen (info->state_msg) == 0)
{
gchar *tmp_msg2 = NULL;
if (info->is_paused && !info->is_accepting_jobs)
/* Translators: this is a printer status. */
tmp_msg2 = g_strdup ( _("Paused; Rejecting Jobs"));
if (info->is_paused && info->is_accepting_jobs)
/* Translators: this is a printer status. */
tmp_msg2 = g_strdup ( _("Paused"));
if (!info->is_paused && !info->is_accepting_jobs)
/* Translators: this is a printer status. */
tmp_msg2 = g_strdup ( _("Rejecting Jobs"));
if (tmp_msg2 != NULL)
{
g_free (info->state_msg);
info->state_msg = tmp_msg2;
}
}
/* Set description of the reason and combine it with printer-state-message. */
if (info->reason_msg)
{
gchar *reason_msg_desc = NULL;
gboolean found = FALSE;
for (i = 0; i < G_N_ELEMENTS (printer_messages); i++)
{
if (strncmp (info->reason_msg, printer_messages[i],
strlen (printer_messages[i])) == 0)
{
reason_msg_desc = g_strdup_printf (printer_strings[i],
info->printer_name);
found = TRUE;
break;
}
}
if (!found)
info->reason_level = GTK_PRINTER_STATE_LEVEL_NONE;
if (info->reason_level >= GTK_PRINTER_STATE_LEVEL_WARNING)
{
if (info->state_msg == NULL || info->state_msg[0] == '\0')
{
g_free (info->state_msg);
info->state_msg = reason_msg_desc;
reason_msg_desc = NULL;
}
else
{
gchar *tmp_msg = NULL;
/* Translators: this string connects multiple printer states together. */
tmp_msg = g_strjoin ( _("; "), info->state_msg,
reason_msg_desc, NULL);
g_free (info->state_msg);
info->state_msg = tmp_msg;
}
}
g_free (reason_msg_desc);
}
}
static void
set_default_printer (GtkPrintBackendCups *cups_backend,
const gchar *default_printer_name)
{
cups_backend->default_printer = g_strdup (default_printer_name);
cups_backend->got_default_printer = TRUE;
if (cups_backend->default_printer != NULL)
{
GtkPrinter *default_printer = NULL;
default_printer = gtk_print_backend_find_printer (GTK_PRINT_BACKEND (cups_backend),
cups_backend->default_printer);
if (default_printer != NULL)
{
gtk_printer_set_is_default (default_printer, TRUE);
g_signal_emit_by_name (GTK_PRINT_BACKEND (cups_backend),
"printer-status-changed", default_printer);
}
}
}
#ifdef HAVE_CUPS_API_1_6
typedef struct
{
gchar *name;
gchar *type;
gchar *domain;
gchar *host;
gint port;
} AvahiService;
void
avahi_service_free (AvahiService *service)
{
if (service)
{
g_free (service->name);
g_free (service->type);
g_free (service->domain);
g_free (service->host);
g_free (service);
}
}
static void
cups_request_avahi_printer_info_cb (GtkPrintBackendCups *cups_backend,
GtkCupsResult *result,
gpointer user_data)
{
PrinterSetupInfo *info = g_slice_new0 (PrinterSetupInfo);
GtkPrintBackend *backend = GTK_PRINT_BACKEND (cups_backend);
ipp_attribute_t *attr;
AvahiService *service = (AvahiService *) user_data;
GtkPrinter *printer;
gboolean list_has_changed = FALSE;
gboolean status_changed = FALSE;
ipp_t *response;
gdk_threads_enter ();
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
if (gtk_cups_result_is_error (result))
{
GTK_NOTE (PRINTING,
g_warning ("CUPS Backend: Error getting printer info: %s %d %d",
gtk_cups_result_get_error_string (result),
gtk_cups_result_get_error_type (result),
gtk_cups_result_get_error_code (result)));
goto done;
}
response = gtk_cups_result_get_response (result);
attr = ippFirstAttribute (response);
while (attr && ippGetGroupTag (attr) != IPP_TAG_PRINTER)
attr = ippNextAttribute (response);
if (attr)
{
while (attr && ippGetGroupTag (attr) == IPP_TAG_PRINTER)
{
cups_printer_handle_attribute (cups_backend, attr, info);
attr = ippNextAttribute (response);
}
if (info->printer_name && info->printer_uri)
{
info->avahi_printer = TRUE;
if (info->got_printer_type &&
info->default_printer &&
cups_backend->avahi_default_printer == NULL)
cups_backend->avahi_default_printer = g_strdup (info->printer_name);
set_info_state_message (info);
printer = gtk_print_backend_find_printer (backend, info->printer_name);
if (!printer)
{
printer = cups_create_printer (cups_backend, info);
list_has_changed = TRUE;
}
else
{
g_object_ref (printer);
}
gtk_printer_set_is_paused (printer, info->is_paused);
gtk_printer_set_is_accepting_jobs (printer, info->is_accepting_jobs);
if (!gtk_printer_is_active (printer))
{
gtk_printer_set_is_active (printer, TRUE);
gtk_printer_set_is_new (printer, TRUE);
list_has_changed = TRUE;
}
GTK_PRINTER_CUPS (printer)->remote = info->remote_printer;
GTK_PRINTER_CUPS (printer)->avahi_name = g_strdup (service->name);
GTK_PRINTER_CUPS (printer)->avahi_type = g_strdup (service->type);
GTK_PRINTER_CUPS (printer)->avahi_domain = g_strdup (service->domain);
GTK_PRINTER_CUPS (printer)->hostname = g_strdup (service->host);
GTK_PRINTER_CUPS (printer)->port = service->port;
GTK_PRINTER_CUPS (printer)->state = info->state;
GTK_PRINTER_CUPS (printer)->ipp_version_major = info->ipp_version_major;
GTK_PRINTER_CUPS (printer)->ipp_version_minor = info->ipp_version_minor;
GTK_PRINTER_CUPS (printer)->supports_copies = info->supports_copies;
GTK_PRINTER_CUPS (printer)->supports_collate = info->supports_collate;
GTK_PRINTER_CUPS (printer)->supports_number_up = info->supports_number_up;
status_changed = gtk_printer_set_job_count (printer, info->job_count);
status_changed |= gtk_printer_set_location (printer, info->location);
status_changed |= gtk_printer_set_description (printer, info->description);
status_changed |= gtk_printer_set_state_message (printer, info->state_msg);
status_changed |= gtk_printer_set_is_accepting_jobs (printer, info->is_accepting_jobs);
set_printer_icon_name_from_info (printer, info);
if (gtk_printer_is_new (printer))
{
g_signal_emit_by_name (backend, "printer-added", printer);
gtk_printer_set_is_new (printer, FALSE);
}
if (status_changed)
g_signal_emit_by_name (GTK_PRINT_BACKEND (backend),
"printer-status-changed", printer);
/* The ref is held by GtkPrintBackend, in add_printer() */
g_object_unref (printer);
}
}
done:
if (list_has_changed)
g_signal_emit_by_name (backend, "printer-list-changed");
if (!cups_backend->got_default_printer &&
gtk_print_backend_printer_list_is_done (backend) &&
cups_backend->avahi_default_printer != NULL)
{
set_default_printer (cups_backend, cups_backend->avahi_default_printer);
}
g_slice_free (PrinterSetupInfo, info);
gdk_threads_leave ();
}
static void
cups_request_avahi_printer_info (const gchar *printer_uri,
const gchar *host,
gint port,
const gchar *name,
const gchar *type,
const gchar *domain,
GtkPrintBackendCups *backend)
{
GtkCupsRequest *request;
AvahiService *service;
http_t *http;
http = httpConnect (host, port);
if (http)
{
service = (AvahiService *) g_new0 (AvahiService, 1);
service->name = g_strdup (name);
service->type = g_strdup (type);
service->domain = g_strdup (domain);
service->host = g_strdup (host);
service->port = port;
request = gtk_cups_request_new_with_username (http,
GTK_CUPS_POST,
IPP_GET_PRINTER_ATTRIBUTES,
NULL,
NULL,
NULL,
backend->username);
gtk_cups_request_set_ipp_version (request, 1, 1);
gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_URI,
"printer-uri", NULL, printer_uri);
gtk_cups_request_ipp_add_strings (request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes", G_N_ELEMENTS (printer_attrs),
NULL, printer_attrs);
cups_request_execute (backend,
request,
(GtkPrintCupsResponseCallbackFunc) cups_request_avahi_printer_info_cb,
service,
(GDestroyNotify) avahi_service_free);
}
}
typedef struct
{
gchar *printer_uri;
gchar *host;
gint port;
gchar *name;
gchar *type;
gchar *domain;
GtkPrintBackendCups *backend;
} AvahiConnectionTestData;
static void
avahi_connection_test_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
AvahiConnectionTestData *data = (AvahiConnectionTestData *) user_data;
GSocketConnection *connection;
connection = g_socket_client_connect_to_host_finish (G_SOCKET_CLIENT (source_object),
res,
NULL);
g_object_unref (source_object);
if (connection != NULL)
{
g_io_stream_close (G_IO_STREAM (connection), NULL, NULL);
g_object_unref (connection);
cups_request_avahi_printer_info (data->printer_uri,
data->host,
data->port,
data->name,
data->type,
data->domain,
data->backend);
}
g_free (data->printer_uri);
g_free (data->host);
g_free (data->name);
g_free (data->type);
g_free (data->domain);
g_free (data);
}
static void
avahi_service_resolver_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
AvahiConnectionTestData *data;
GtkPrintBackendCups *backend;
const gchar *name;
const gchar *host;
const gchar *type;
const gchar *domain;
const gchar *address;
const gchar *protocol_string;
GVariant *output;
GVariant *txt;
GVariant *child;
guint32 flags;
guint16 port;
GError *error = NULL;
gchar *suffix = NULL;
gchar *tmp;
gint interface;
gint protocol;
gint aprotocol;
gint i, j;
output = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source_object),
res,
&error);
if (output)
{
backend = GTK_PRINT_BACKEND_CUPS (user_data);
g_variant_get (output, "(ii&s&s&s&si&sq@aayu)",
&interface,
&protocol,
&name,
&type,
&domain,
&host,
&aprotocol,
&address,
&port,
&txt,
&flags);
for (i = 0; i < g_variant_n_children (txt); i++)
{
child = g_variant_get_child_value (txt, i);
tmp = g_new0 (gchar, g_variant_n_children (child) + 1);
for (j = 0; j < g_variant_n_children (child); j++)
{
tmp[j] = g_variant_get_byte (g_variant_get_child_value (child, j));
}
if (g_str_has_prefix (tmp, "rp="))
{
suffix = g_strdup (tmp + 3);
g_free (tmp);
break;
}
g_free (tmp);
}
if (suffix)
{
if (g_strcmp0 (type, "_ipp._tcp") == 0)
protocol_string = "ipp";
else
protocol_string = "ipps";
data = g_new0 (AvahiConnectionTestData, 1);
if (aprotocol == AVAHI_PROTO_INET6)
data->printer_uri = g_strdup_printf ("%s://[%s]:%u/%s", protocol_string, address, port, suffix);
else
data->printer_uri = g_strdup_printf ("%s://%s:%u/%s", protocol_string, address, port, suffix);
data->host = g_strdup (address);
data->port = port;
data->name = g_strdup (name);
data->type = g_strdup (type);
data->domain = g_strdup (domain);
data->backend = backend;
/* It can happen that the address is not reachable */
g_socket_client_connect_to_host_async (g_socket_client_new (),
address,
port,
backend->avahi_cancellable,
avahi_connection_test_cb,
data);
g_free (suffix);
}
g_variant_unref (output);
}
else
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("%s", error->message);
g_error_free (error);
}
}
static void
avahi_service_browser_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)
{
GtkPrintBackendCups *backend = GTK_PRINT_BACKEND_CUPS (user_data);
gchar *name;
gchar *type;
gchar *domain;
guint flags;
gint interface;
gint protocol;
if (g_strcmp0 (signal_name, "ItemNew") == 0)
{
g_variant_get (parameters, "(ii&s&s&su)",
&interface,
&protocol,
&name,
&type,
&domain,
&flags);
if (g_strcmp0 (type, "_ipp._tcp") == 0 ||
g_strcmp0 (type, "_ipps._tcp") == 0)
{
g_dbus_connection_call (backend->dbus_connection,
AVAHI_BUS,
"/",
AVAHI_SERVER_IFACE,
"ResolveService",
g_variant_new ("(iisssiu)",
interface,
protocol,
name,
type,
domain,
AVAHI_PROTO_UNSPEC,
0),
G_VARIANT_TYPE ("(iissssisqaayu)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
backend->avahi_cancellable,
avahi_service_resolver_cb,
user_data);
}
}
else if (g_strcmp0 (signal_name, "ItemRemove") == 0)
{
GtkPrinterCups *printer;
GList *list;
GList *iter;
g_variant_get (parameters, "(ii&s&s&su)",
&interface,
&protocol,
&name,
&type,
&domain,
&flags);
if (g_strcmp0 (type, "_ipp._tcp") == 0 ||
g_strcmp0 (type, "_ipps._tcp") == 0)
{
list = gtk_print_backend_get_printer_list (GTK_PRINT_BACKEND (backend));
for (iter = list; iter; iter = iter->next)
{
printer = GTK_PRINTER_CUPS (iter->data);
if (g_strcmp0 (printer->avahi_name, name) == 0 &&
g_strcmp0 (printer->avahi_type, type) == 0 &&
g_strcmp0 (printer->avahi_domain, domain) == 0)
{
if (g_strcmp0 (gtk_printer_get_name (GTK_PRINTER (printer)),
backend->avahi_default_printer) == 0)
{
g_free (backend->avahi_default_printer);
backend->avahi_default_printer = NULL;
}
g_signal_emit_by_name (backend, "printer-removed", printer);
gtk_print_backend_remove_printer (GTK_PRINT_BACKEND (backend),
GTK_PRINTER (printer));
g_signal_emit_by_name (backend, "printer-list-changed");
break;
}
}
}
g_list_free (list);
}
}
static void
avahi_service_browser_new_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GtkPrintBackendCups *cups_backend;
GVariant *output;
GError *error = NULL;
gint i;
output = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source_object),
res,
&error);
if (output)
{
cups_backend = GTK_PRINT_BACKEND_CUPS (user_data);
i = cups_backend->avahi_service_browser_paths[0] ? 1 : 0;
g_variant_get (output, "(o)", &cups_backend->avahi_service_browser_paths[i]);
cups_backend->avahi_service_browser_subscription_ids[i] =
g_dbus_connection_signal_subscribe (cups_backend->dbus_connection,
NULL,
AVAHI_SERVICE_BROWSER_IFACE,
NULL,
cups_backend->avahi_service_browser_paths[i],
NULL,
G_DBUS_SIGNAL_FLAGS_NONE,
avahi_service_browser_signal_handler,
user_data,
NULL);
/*
* The general subscription for all service browsers is not needed
* now because we are already subscribed to service browsers
* specific to _ipp._tcp and _ipps._tcp services.
*/
if (cups_backend->avahi_service_browser_paths[0] &&
cups_backend->avahi_service_browser_paths[1] &&
cups_backend->avahi_service_browser_subscription_id > 0)
{
g_dbus_connection_signal_unsubscribe (cups_backend->dbus_connection,
cups_backend->avahi_service_browser_subscription_id);
cups_backend->avahi_service_browser_subscription_id = 0;
}
g_variant_unref (output);
}
else
{
/*
* The creation of ServiceBrowser fails with G_IO_ERROR_DBUS_ERROR
* if Avahi is disabled.
*/
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_DBUS_ERROR) &&
!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("%s", error->message);
g_error_free (error);
}
}
static void
avahi_create_browsers (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GDBusConnection *dbus_connection;
GtkPrintBackendCups *cups_backend;
GError *error = NULL;
dbus_connection = g_bus_get_finish (res, &error);
if (!dbus_connection)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("Couldn't connect to D-Bus system bus, %s", error->message);
g_error_free (error);
return;
}
cups_backend = GTK_PRINT_BACKEND_CUPS (user_data);
cups_backend->dbus_connection = dbus_connection;
/*
* We need to subscribe to signals of service browser before
* we actually create it because it starts to emit them right
* after its creation.
*/
cups_backend->avahi_service_browser_subscription_id =
g_dbus_connection_signal_subscribe (cups_backend->dbus_connection,
NULL,
AVAHI_SERVICE_BROWSER_IFACE,
NULL,
NULL,
NULL,
G_DBUS_SIGNAL_FLAGS_NONE,
avahi_service_browser_signal_handler,
cups_backend,
NULL);
/*
* Create service browsers for _ipp._tcp and _ipps._tcp services.
*/
g_dbus_connection_call (cups_backend->dbus_connection,
AVAHI_BUS,
"/",
AVAHI_SERVER_IFACE,
"ServiceBrowserNew",
g_variant_new ("(iissu)",
AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC,
"_ipp._tcp",
"",
0),
G_VARIANT_TYPE ("(o)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
cups_backend->avahi_cancellable,
avahi_service_browser_new_cb,
cups_backend);
g_dbus_connection_call (cups_backend->dbus_connection,
AVAHI_BUS,
"/",
AVAHI_SERVER_IFACE,
"ServiceBrowserNew",
g_variant_new ("(iissu)",
AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC,
"_ipps._tcp",
"",
0),
G_VARIANT_TYPE ("(o)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
cups_backend->avahi_cancellable,
avahi_service_browser_new_cb,
cups_backend);
}
static void
avahi_request_printer_list (GtkPrintBackendCups *cups_backend)
{
cups_backend->avahi_cancellable = g_cancellable_new ();
g_bus_get (G_BUS_TYPE_SYSTEM, cups_backend->avahi_cancellable, avahi_create_browsers, cups_backend);
}
#endif
static void
cups_request_printer_list_cb (GtkPrintBackendCups *cups_backend,
GtkCupsResult *result,
gpointer user_data)
{
GtkPrintBackend *backend = GTK_PRINT_BACKEND (cups_backend);
ipp_attribute_t *attr;
ipp_t *response;
gboolean list_has_changed;
GList *removed_printer_checklist;
gchar *remote_default_printer = NULL;
GList *iter;
GDK_THREADS_ENTER ();
list_has_changed = FALSE;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
cups_backend->list_printers_pending = FALSE;
if (gtk_cups_result_is_error (result))
{
GTK_NOTE (PRINTING,
g_warning ("CUPS Backend: Error getting printer list: %s %d %d",
gtk_cups_result_get_error_string (result),
gtk_cups_result_get_error_type (result),
gtk_cups_result_get_error_code (result)));
if (gtk_cups_result_get_error_type (result) == GTK_CUPS_ERROR_AUTH &&
gtk_cups_result_get_error_code (result) == 1)
{
/* Canceled by user, stop popping up more password dialogs */
if (cups_backend->list_printers_poll > 0)
g_source_remove (cups_backend->list_printers_poll);
cups_backend->list_printers_poll = 0;
cups_backend->list_printers_attempts = 0;
}
goto done;
}
/* Gather the names of the printers in the current queue
* so we may check to see if they were removed
*/
removed_printer_checklist = gtk_print_backend_get_printer_list (backend);
response = gtk_cups_result_get_response (result);
#ifdef HAVE_CUPS_API_1_6
for (attr = ippFirstAttribute (response); attr != NULL;
attr = ippNextAttribute (response))
{
GtkPrinter *printer;
gboolean status_changed = FALSE;
GList *node;
PrinterSetupInfo *info = g_slice_new0 (PrinterSetupInfo);
/* Skip leading attributes until we hit a printer...
*/
while (attr != NULL && ippGetGroupTag (attr) != IPP_TAG_PRINTER)
attr = ippNextAttribute (response);
if (attr == NULL)
break;
while (attr != NULL && ippGetGroupTag (attr) == IPP_TAG_PRINTER)
{
cups_printer_handle_attribute (cups_backend, attr, info);
attr = ippNextAttribute (response);
}
#else
for (attr = response->attrs; attr != NULL; attr = attr->next)
{
GtkPrinter *printer;
gboolean status_changed = FALSE;
GList *node;
PrinterSetupInfo *info = g_slice_new0 (PrinterSetupInfo);
/* Skip leading attributes until we hit a printer...
*/
while (attr != NULL && ippGetGroupTag (attr) != IPP_TAG_PRINTER)
attr = attr->next;
if (attr == NULL)
break;
while (attr != NULL && ippGetGroupTag (attr) == IPP_TAG_PRINTER)
{
cups_printer_handle_attribute (cups_backend, attr, info);
attr = attr->next;
}
#endif
if (info->printer_name == NULL ||
(info->printer_uri == NULL && info->member_uris == NULL))
{
if (attr == NULL)
break;
else
continue;
}
if (info->got_printer_type)
{
if (info->default_printer && !cups_backend->got_default_printer)
{
if (!info->remote_printer)
{
cups_backend->got_default_printer = TRUE;
cups_backend->default_printer = g_strdup (info->printer_name);
}
else
{
if (remote_default_printer == NULL)
remote_default_printer = g_strdup (info->printer_name);
}
}
}
else
{
if (!cups_backend->got_default_printer)
cups_get_default_printer (cups_backend);
}
/* remove name from checklist if it was found */
node = g_list_find_custom (removed_printer_checklist,
info->printer_name,
(GCompareFunc) find_printer);
removed_printer_checklist = g_list_delete_link (removed_printer_checklist,
node);
printer = gtk_print_backend_find_printer (backend, info->printer_name);
if (!printer)
{
printer = cups_create_printer (cups_backend, info);
list_has_changed = TRUE;
}
else
g_object_ref (printer);
GTK_PRINTER_CUPS (printer)->remote = info->remote_printer;
gtk_printer_set_is_paused (printer, info->is_paused);
gtk_printer_set_is_accepting_jobs (printer, info->is_accepting_jobs);
if (!gtk_printer_is_active (printer))
{
gtk_printer_set_is_active (printer, TRUE);
gtk_printer_set_is_new (printer, TRUE);
list_has_changed = TRUE;
}
if (gtk_printer_is_new (printer))
{
g_signal_emit_by_name (backend, "printer-added", printer);
gtk_printer_set_is_new (printer, FALSE);
}
#if 0
/* Getting printer info with separate requests overwhelms cups
* when the printer list has more than a handful of printers.
*/
cups_request_printer_info (cups_backend, gtk_printer_get_name (printer));
#endif
GTK_PRINTER_CUPS (printer)->state = info->state;
GTK_PRINTER_CUPS (printer)->ipp_version_major = info->ipp_version_major;
GTK_PRINTER_CUPS (printer)->ipp_version_minor = info->ipp_version_minor;
GTK_PRINTER_CUPS (printer)->supports_copies = info->supports_copies;
GTK_PRINTER_CUPS (printer)->supports_collate = info->supports_collate;
GTK_PRINTER_CUPS (printer)->supports_number_up = info->supports_number_up;
status_changed = gtk_printer_set_job_count (printer, info->job_count);
status_changed |= gtk_printer_set_location (printer, info->location);
status_changed |= gtk_printer_set_description (printer,
info->description);
set_info_state_message (info);
status_changed |= gtk_printer_set_state_message (printer, info->state_msg);
status_changed |= gtk_printer_set_is_accepting_jobs (printer, info->is_accepting_jobs);
set_printer_icon_name_from_info (printer, info);
if (status_changed)
g_signal_emit_by_name (GTK_PRINT_BACKEND (backend),
"printer-status-changed", printer);
/* The ref is held by GtkPrintBackend, in add_printer() */
g_object_unref (printer);
g_free (info->state_msg);
g_slice_free (PrinterSetupInfo, info);
if (attr == NULL)
break;
}
/* look at the removed printers checklist and mark any printer
as inactive if it is in the list, emitting a printer_removed signal */
if (removed_printer_checklist != NULL)
{
for (iter = removed_printer_checklist; iter; iter = iter->next)
{
#ifdef HAVE_CUPS_API_1_6
if (!GTK_PRINTER_CUPS (iter->data)->avahi_browsed)
#endif
{
mark_printer_inactive (GTK_PRINTER (iter->data), backend);
list_has_changed = TRUE;
}
}
g_list_free (removed_printer_checklist);
}
done:
if (list_has_changed)
g_signal_emit_by_name (backend, "printer-list-changed");
gtk_print_backend_set_list_done (backend);
if (!cups_backend->got_default_printer && remote_default_printer != NULL)
{
set_default_printer (cups_backend, remote_default_printer);
g_free (remote_default_printer);
}
#ifdef HAVE_CUPS_API_1_6
if (!cups_backend->got_default_printer && cups_backend->avahi_default_printer != NULL)
{
set_default_printer (cups_backend, cups_backend->avahi_default_printer);
}
#endif
GDK_THREADS_LEAVE ();
}
static void
update_backend_status (GtkPrintBackendCups *cups_backend,
GtkCupsConnectionState state)
{
switch (state)
{
case GTK_CUPS_CONNECTION_NOT_AVAILABLE:
g_object_set (cups_backend, "status", GTK_PRINT_BACKEND_STATUS_UNAVAILABLE, NULL);
break;
case GTK_CUPS_CONNECTION_AVAILABLE:
g_object_set (cups_backend, "status", GTK_PRINT_BACKEND_STATUS_OK, NULL);
break;
default: ;
}
}
static gboolean
cups_request_printer_list (GtkPrintBackendCups *cups_backend)
{
GtkCupsConnectionState state;
GtkCupsRequest *request;
if (cups_backend->reading_ppds > 0 || cups_backend->list_printers_pending)
return TRUE;
state = gtk_cups_connection_test_get_state (cups_backend->cups_connection_test);
update_backend_status (cups_backend, state);
if (cups_backend->list_printers_attempts == 60)
{
cups_backend->list_printers_attempts = -1;
if (cups_backend->list_printers_poll > 0)
g_source_remove (cups_backend->list_printers_poll);
cups_backend->list_printers_poll = gdk_threads_add_timeout (200,
(GSourceFunc) cups_request_printer_list,
cups_backend);
}
else if (cups_backend->list_printers_attempts != -1)
cups_backend->list_printers_attempts++;
if (state == GTK_CUPS_CONNECTION_IN_PROGRESS || state == GTK_CUPS_CONNECTION_NOT_AVAILABLE)
return TRUE;
else
if (cups_backend->list_printers_attempts > 0)
cups_backend->list_printers_attempts = 60;
cups_backend->list_printers_pending = TRUE;
request = gtk_cups_request_new_with_username (NULL,
GTK_CUPS_POST,
CUPS_GET_PRINTERS,
NULL,
NULL,
NULL,
cups_backend->username);
gtk_cups_request_ipp_add_strings (request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes", G_N_ELEMENTS (printer_attrs),
NULL, printer_attrs);
cups_request_execute (cups_backend,
request,
(GtkPrintCupsResponseCallbackFunc) cups_request_printer_list_cb,
request,
NULL);
return TRUE;
}
static void
cups_get_printer_list (GtkPrintBackend *backend)
{
GtkPrintBackendCups *cups_backend;
cups_backend = GTK_PRINT_BACKEND_CUPS (backend);
if (cups_backend->cups_connection_test == NULL)
cups_backend->cups_connection_test = gtk_cups_connection_test_new (NULL, -1);
if (cups_backend->list_printers_poll == 0)
{
if (cups_request_printer_list (cups_backend))
cups_backend->list_printers_poll = gdk_threads_add_timeout (50,
(GSourceFunc) cups_request_printer_list,
backend);
#ifdef HAVE_CUPS_API_1_6
avahi_request_printer_list (cups_backend);
#endif
}
}
typedef struct {
GtkPrinterCups *printer;
GIOChannel *ppd_io;
http_t *http;
} GetPPDData;
static void
get_ppd_data_free (GetPPDData *data)
{
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
httpClose (data->http);
g_io_channel_unref (data->ppd_io);
g_object_unref (data->printer);
g_free (data);
}
static void
cups_request_ppd_cb (GtkPrintBackendCups *print_backend,
GtkCupsResult *result,
GetPPDData *data)
{
ipp_t *response;
GtkPrinter *printer;
GDK_THREADS_ENTER ();
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
printer = GTK_PRINTER (data->printer);
GTK_PRINTER_CUPS (printer)->reading_ppd = FALSE;
print_backend->reading_ppds--;
if (gtk_cups_result_is_error (result))
{
gboolean success = FALSE;
/* If we get a 404 then it is just a raw printer without a ppd
and not an error. Standalone Avahi printers also don't have
PPD files. */
if (((gtk_cups_result_get_error_type (result) == GTK_CUPS_ERROR_HTTP) &&
(gtk_cups_result_get_error_status (result) == HTTP_NOT_FOUND))
#ifdef HAVE_CUPS_API_1_6
|| GTK_PRINTER_CUPS (printer)->avahi_browsed
#endif
)
{
gtk_printer_set_has_details (printer, TRUE);
success = TRUE;
}
g_signal_emit_by_name (printer, "details-acquired", success);
goto done;
}
response = gtk_cups_result_get_response (result);
/* let ppdOpenFd take over the ownership of the open file */
g_io_channel_seek_position (data->ppd_io, 0, G_SEEK_SET, NULL);
data->printer->ppd_file = ppdOpenFd (dup (g_io_channel_unix_get_fd (data->ppd_io)));
ppdMarkDefaults (data->printer->ppd_file);
gtk_printer_set_has_details (printer, TRUE);
g_signal_emit_by_name (printer, "details-acquired", TRUE);
done:
GDK_THREADS_LEAVE ();
}
static gboolean
cups_request_ppd (GtkPrinter *printer)
{
GError *error;
GtkPrintBackend *print_backend;
GtkPrinterCups *cups_printer;
GtkCupsRequest *request;
char *ppd_filename = NULL;
gchar *resource;
http_t *http;
GetPPDData *data;
int fd;
cups_printer = GTK_PRINTER_CUPS (printer);
error = NULL;
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: %s\n", G_STRFUNC));
if (cups_printer->remote)
{
GtkCupsConnectionState state;
state = gtk_cups_connection_test_get_state (cups_printer->remote_cups_connection_test);
if (state == GTK_CUPS_CONNECTION_IN_PROGRESS)
{
if (cups_printer->get_remote_ppd_attempts == 60)
{
cups_printer->get_remote_ppd_attempts = -1;
if (cups_printer->get_remote_ppd_poll > 0)
g_source_remove (cups_printer->get_remote_ppd_poll);
cups_printer->get_remote_ppd_poll = gdk_threads_add_timeout (200,
(GSourceFunc) cups_request_ppd,
printer);
}
else if (cups_printer->get_remote_ppd_attempts != -1)
cups_printer->get_remote_ppd_attempts++;
return TRUE;
}
gtk_cups_connection_test_free (cups_printer->remote_cups_connection_test);
cups_printer->remote_cups_connection_test = NULL;
cups_printer->get_remote_ppd_poll = 0;
cups_printer->get_remote_ppd_attempts = 0;
if (state == GTK_CUPS_CONNECTION_NOT_AVAILABLE)
{
g_signal_emit_by_name (printer, "details-acquired", FALSE);
return FALSE;
}
}
http = httpConnectEncrypt (cups_printer->hostname,
cups_printer->port,
cupsEncryption ());
data = g_new0 (GetPPDData, 1);
fd = g_file_open_tmp ("gtkprint_ppd_XXXXXX",
&ppd_filename,
&error);
#ifdef G_ENABLE_DEBUG
/* If we are debugging printing don't delete the tmp files */
if (!(gtk_debug_flags & GTK_DEBUG_PRINTING))
unlink (ppd_filename);
#else
unlink (ppd_filename);
#endif /* G_ENABLE_DEBUG */
if (error != NULL)
{
GTK_NOTE (PRINTING,
g_warning ("CUPS Backend: Failed to create temp file, %s\n",
error->message));
g_error_free (error);
httpClose (http);
g_free (ppd_filename);
g_free (data);
g_signal_emit_by_name (printer, "details-acquired", FALSE);
return FALSE;
}
data->http = http;
fchmod (fd, S_IRUSR | S_IWUSR);
data->ppd_io = g_io_channel_unix_new (fd);
g_io_channel_set_encoding (data->ppd_io, NULL, NULL);
g_io_channel_set_close_on_unref (data->ppd_io, TRUE);
data->printer = g_object_ref (printer);
resource = g_strdup_printf ("/printers/%s.ppd",
gtk_printer_cups_get_ppd_name (GTK_PRINTER_CUPS (printer)));
print_backend = gtk_printer_get_backend (printer);
request = gtk_cups_request_new_with_username (data->http,
GTK_CUPS_GET,
0,
data->ppd_io,
cups_printer->hostname,
resource,
GTK_PRINT_BACKEND_CUPS (print_backend)->username);
gtk_cups_request_set_ipp_version (request,
cups_printer->ipp_version_major,
cups_printer->ipp_version_minor);
GTK_NOTE (PRINTING,
g_print ("CUPS Backend: Requesting resource %s to be written to temp file %s\n", resource, ppd_filename));
cups_printer->reading_ppd = TRUE;
GTK_PRINT_BACKEND_CUPS (print_backend)->reading_ppds++;
cups_request_execute (GTK_PRINT_BACKEND_CUPS (print_backend),
request,
(GtkPrintCupsResponseCallbackFunc) cups_request_ppd_cb,
data,
(GDestroyNotify)get_ppd_data_free);
g_free (resource);
g_free (ppd_filename);
return FALSE;
}
/* Ordering matters for default preference */
static const char *lpoptions_locations[] = {
"/etc/cups/lpoptions",
".lpoptions",
".cups/lpoptions"
};
static void
cups_parse_user_default_printer (const char *filename,
char **printer_name)
{
FILE *fp;
char line[1024], *lineptr, *defname = NULL;
if ((fp = g_fopen (filename, "r")) == NULL)
return;
while (fgets (line, sizeof (line), fp) != NULL)
{
if (strncasecmp (line, "default", 7) != 0 || !isspace (line[7]))
continue;
lineptr = line + 8;
while (isspace (*lineptr))
lineptr++;
if (!*lineptr)
continue;
defname = lineptr;
while (!isspace (*lineptr) && *lineptr && *lineptr != '/')
lineptr++;
*lineptr = '\0';
if (*printer_name != NULL)
g_free (*printer_name);
*printer_name = g_strdup (defname);
}
fclose (fp);
}
static void
cups_get_user_default_printer (char **printer_name)
{
int i;
for (i = 0; i < G_N_ELEMENTS (lpoptions_locations); i++)
{
if (g_path_is_absolute (lpoptions_locations[i]))
{
cups_parse_user_default_printer (lpoptions_locations[i],
printer_name);
}
else
{
char *filename;
filename = g_build_filename (g_get_home_dir (),
lpoptions_locations[i], NULL);
cups_parse_user_default_printer (filename, printer_name);
g_free (filename);
}
}
}
static int
cups_parse_user_options (const char *filename,
const char *printer_name,
int num_options,
cups_option_t **options)
{
FILE *fp;
gchar line[1024], *lineptr, *name;
if ((fp = g_fopen (filename, "r")) == NULL)
return num_options;
while (fgets (line, sizeof (line), fp) != NULL)
{
if (strncasecmp (line, "dest", 4) == 0 && isspace (line[4]))
lineptr = line + 4;
else if (strncasecmp (line, "default", 7) == 0 && isspace (line[7]))
lineptr = line + 7;
else
continue;
/* Skip leading whitespace */
while (isspace (*lineptr))
lineptr++;
if (!*lineptr)
continue;
/* NUL-terminate the name, stripping the instance name */
name = lineptr;
while (!isspace (*lineptr) && *lineptr)
{
if (*lineptr == '/')
*lineptr = '\0';
lineptr++;
}
if (!*lineptr)
continue;
*lineptr++ = '\0';
if (strncasecmp (name, printer_name, strlen (printer_name)) != 0)
continue;
/* We found our printer, parse the options */
num_options = cupsParseOptions (lineptr, num_options, options);
}
fclose (fp);
return num_options;
}
static int
cups_get_user_options (const char *printer_name,
int num_options,
cups_option_t **options)
{
int i;
for (i = 0; i < G_N_ELEMENTS (lpoptions_locations); i++)
{
if (g_path_is_absolute (lpoptions_locations[i]))
{
num_options = cups_parse_user_options (lpoptions_locations[i],
printer_name,
num_options,
options);
}
else
{
char *filename;
filename = g_build_filename (g_get_home_dir (),
lpoptions_locations[i], NULL);
num_options = cups_parse_user_options (filename, printer_name,
num_options, options);
g_free (filename);
}
}
return num_options;
}
/* This function requests default printer from a CUPS server in regular intervals.
* In the case of unreachable CUPS server the request is repeated later.
* The default printer is not requested in the case of previous success.
*/
static void
cups_get_default_printer (GtkPrintBackendCups *backend)
{
GtkPrintBackendCups *cups_backend;
cups_backend = backend;
if (cups_backend->cups_connection_test == NULL)
cups_backend->cups_connection_test = gtk_cups_connection_test_new (NULL, -1);
if (cups_backend->default_printer_poll == 0)
{
if (cups_request_default_printer (cups_backend))
cups_backend->default_printer_poll = gdk_threads_add_timeout (200,
(GSourceFunc) cups_request_default_printer,
backend);
}
}
/* This function gets default printer from local settings.*/
static void
cups_get_local_default_printer (GtkPrintBackendCups *backend)
{
const char *str;
char *name = NULL;
if ((str = g_getenv ("LPDEST")) != NULL)
{
backend->default_printer = g_strdup (str);
backend->got_default_printer = TRUE;
return;
}
else if ((str = g_getenv ("PRINTER")) != NULL &&
strcmp (str, "lp") != 0)
{
backend->default_printer = g_strdup (str);
backend->got_default_printer = TRUE;
return;
}
/* Figure out user setting for default printer */
cups_get_user_default_printer (&name);
if (name != NULL)
{
backend->default_printer = name;
backend->got_default_printer = TRUE;
return;
}
}
static void
cups_request_default_printer_cb (GtkPrintBackendCups *print_backend,
GtkCupsResult *result,
gpointer user_data)
{
ipp_t *response;
ipp_attribute_t *attr;
GtkPrinter *printer;
GDK_THREADS_ENTER ();
if (gtk_cups_result_is_error (result))
{
if (gtk_cups_result_get_error_type (result) == GTK_CUPS_ERROR_AUTH &&
gtk_cups_result_get_error_code (result) == 1)
{
/* Canceled by user, stop popping up more password dialogs */
if (print_backend->list_printers_poll > 0)
g_source_remove (print_backend->list_printers_poll);
print_backend->list_printers_poll = 0;
}
return;
}
response = gtk_cups_result_get_response (result);
if ((attr = ippFindAttribute (response, "printer-name", IPP_TAG_NAME)) != NULL)
print_backend->default_printer = g_strdup (ippGetString (attr, 0, NULL));
print_backend->got_default_printer = TRUE;
if (print_backend->default_printer != NULL)
{
printer = gtk_print_backend_find_printer (GTK_PRINT_BACKEND (print_backend), print_backend->default_printer);
if (printer != NULL)
{
gtk_printer_set_is_default (printer, TRUE);
g_signal_emit_by_name (GTK_PRINT_BACKEND (print_backend), "printer-status-changed", printer);
}
}
/* Make sure to kick off get_printers if we are polling it,
* as we could have blocked this reading the default printer
*/
if (print_backend->list_printers_poll != 0)
cups_request_printer_list (print_backend);
GDK_THREADS_LEAVE ();
}
static gboolean
cups_request_default_printer (GtkPrintBackendCups *print_backend)
{
GtkCupsConnectionState state;
GtkCupsRequest *request;
state = gtk_cups_connection_test_get_state (print_backend->cups_connection_test);
update_backend_status (print_backend, state);
if (state == GTK_CUPS_CONNECTION_IN_PROGRESS || state == GTK_CUPS_CONNECTION_NOT_AVAILABLE)
return TRUE;
request = gtk_cups_request_new_with_username (NULL,
GTK_CUPS_POST,
CUPS_GET_DEFAULT,
NULL,
NULL,
NULL,
print_backend->username);
cups_request_execute (print_backend,
request,
(GtkPrintCupsResponseCallbackFunc) cups_request_default_printer_cb,
g_object_ref (print_backend),
g_object_unref);
return FALSE;
}
static void
cups_printer_request_details (GtkPrinter *printer)
{
GtkPrinterCups *cups_printer;
cups_printer = GTK_PRINTER_CUPS (printer);
if (!cups_printer->reading_ppd &&
gtk_printer_cups_get_ppd (cups_printer) == NULL)
{
if (cups_printer->remote)
{
if (cups_printer->get_remote_ppd_poll == 0)
{
cups_printer->remote_cups_connection_test =
gtk_cups_connection_test_new (cups_printer->hostname,
cups_printer->port);
if (cups_request_ppd (printer))
cups_printer->get_remote_ppd_poll = gdk_threads_add_timeout (50,
(GSourceFunc) cups_request_ppd,
printer);
}
}
else
cups_request_ppd (printer);
}
}
static char *
ppd_text_to_utf8 (ppd_file_t *ppd_file,
const char *text)
{
const char *encoding = NULL;
char *res;
if (g_ascii_strcasecmp (ppd_file->lang_encoding, "UTF-8") == 0)
{
return g_strdup (text);
}
else if (g_ascii_strcasecmp (ppd_file->lang_encoding, "ISOLatin1") == 0)
{
encoding = "ISO-8859-1";
}
else if (g_ascii_strcasecmp (ppd_file->lang_encoding, "ISOLatin2") == 0)
{
encoding = "ISO-8859-2";
}
else if (g_ascii_strcasecmp (ppd_file->lang_encoding, "ISOLatin5") == 0)
{
encoding = "ISO-8859-5";
}
else if (g_ascii_strcasecmp (ppd_file->lang_encoding, "JIS83-RKSJ") == 0)
{
encoding = "SHIFT-JIS";
}
else if (g_ascii_strcasecmp (ppd_file->lang_encoding, "MacStandard") == 0)
{
encoding = "MACINTOSH";
}
else if (g_ascii_strcasecmp (ppd_file->lang_encoding, "WindowsANSI") == 0)
{
encoding = "WINDOWS-1252";
}
else
{
/* Fallback, try iso-8859-1... */
encoding = "ISO-8859-1";
}
res = g_convert (text, -1, "UTF-8", encoding, NULL, NULL, NULL);
if (res == NULL)
{
GTK_NOTE (PRINTING,
g_warning ("CUPS Backend: Unable to convert PPD text\n"));
res = g_strdup ("???");
}
return res;
}
/* TODO: Add more translations for common settings here */
static const struct {
const char *keyword;
const char *translation;
} cups_option_translations[] = {
{ "Duplex", N_("Two Sided") },
{ "MediaType", N_("Paper Type") },
{ "InputSlot", N_("Paper Source") },
{ "OutputBin", N_("Output Tray") },
{ "Resolution", N_("Resolution") },
{ "PreFilter", N_("GhostScript pre-filtering") },
};
static const struct {
const char *keyword;
const char *choice;
const char *translation;
} cups_choice_translations[] = {
{ "Duplex", "None", N_("One Sided") },
/* Translators: this is an option of "Two Sided" */
{ "Duplex", "DuplexNoTumble", N_("Long Edge (Standard)") },
/* Translators: this is an option of "Two Sided" */
{ "Duplex", "DuplexTumble", N_("Short Edge (Flip)") },
/* Translators: this is an option of "Paper Source" */
{ "InputSlot", "Auto", N_("Auto Select") },
/* Translators: this is an option of "Paper Source" */
{ "InputSlot", "AutoSelect", N_("Auto Select") },
/* Translators: this is an option of "Paper Source" */
{ "InputSlot", "Default", N_("Printer Default") },
/* Translators: this is an option of "Paper Source" */
{ "InputSlot", "None", N_("Printer Default") },
/* Translators: this is an option of "Paper Source" */
{ "InputSlot", "PrinterDefault", N_("Printer Default") },
/* Translators: this is an option of "Paper Source" */
{ "InputSlot", "Unspecified", N_("Auto Select") },
/* Translators: this is an option of "Resolution" */
{ "Resolution", "default", N_("Printer Default") },
/* Translators: this is an option of "GhostScript" */
{ "PreFilter", "EmbedFonts", N_("Embed GhostScript fonts only") },
/* Translators: this is an option of "GhostScript" */
{ "PreFilter", "Level1", N_("Convert to PS level 1") },
/* Translators: this is an option of "GhostScript" */
{ "PreFilter", "Level2", N_("Convert to PS level 2") },
/* Translators: this is an option of "GhostScript" */
{ "PreFilter", "No", N_("No pre-filtering") },
};
static const struct {
const char *name;
const char *translation;
} cups_group_translations[] = {
/* Translators: "Miscellaneous" is the label for a button, that opens
up an extra panel of settings in a print dialog. */
{ "Miscellaneous", N_("Miscellaneous") },
};
static const struct {
const char *ppd_keyword;
const char *name;
} ppd_option_names[] = {
{"Duplex", "gtk-duplex" },
{"MediaType", "gtk-paper-type"},
{"InputSlot", "gtk-paper-source"},
{"OutputBin", "gtk-output-tray"},
};
static const struct {
const char *lpoption;
const char *name;
} lpoption_names[] = {
{"number-up", "gtk-n-up" },
{"number-up-layout", "gtk-n-up-layout"},
{"job-billing", "gtk-billing-info"},
{"job-priority", "gtk-job-prio"},
};
/* keep sorted when changing */
static const char *color_option_whitelist[] = {
"BRColorEnhancement",
"BRColorMatching",
"BRColorMatching",
"BRColorMode",
"BRGammaValue",
"BRImprovedGray",
"BlackSubstitution",
"ColorModel",
"HPCMYKInks",
"HPCSGraphics",
"HPCSImages",
"HPCSText",
"HPColorSmart",
"RPSBlackMode",
"RPSBlackOverPrint",
"Rcmyksimulation",
};
/* keep sorted when changing */
static const char *color_group_whitelist[] = {
"ColorPage",
"FPColorWise1",
"FPColorWise2",
"FPColorWise3",
"FPColorWise4",
"FPColorWise5",
"HPColorOptionsPanel",
};
/* keep sorted when changing */
static const char *image_quality_option_whitelist[] = {
"BRDocument",
"BRHalfTonePattern",
"BRNormalPrt",
"BRPrintQuality",
"BitsPerPixel",
"Darkness",
"Dithering",
"EconoMode",
"Economode",
"HPEconoMode",
"HPEdgeControl",
"HPGraphicsHalftone",
"HPHalftone",
"HPLJDensity",
"HPPhotoHalftone",
"OutputMode",
"REt",
"RPSBitsPerPixel",
"RPSDitherType",
"Resolution",
"ScreenLock",
"Smoothing",
"TonerSaveMode",
"UCRGCRForImage",
};
/* keep sorted when changing */
static const char *image_quality_group_whitelist[] = {
"FPImageQuality1",
"FPImageQuality2",
"FPImageQuality3",
"ImageQualityPage",
};
/* keep sorted when changing */
static const char * finishing_option_whitelist[] = {
"BindColor",
"BindEdge",
"BindType",
"BindWhen",
"Booklet",
"FoldType",
"FoldWhen",
"HPStaplerOptions",
"Jog",
"Slipsheet",
"Sorter",
"StapleLocation",
"StapleOrientation",
"StapleWhen",
"StapleX",
"StapleY",
};
/* keep sorted when changing */
static const char *finishing_group_whitelist[] = {
"FPFinishing1",
"FPFinishing2",
"FPFinishing3",
"FPFinishing4",
"FinishingPage",
"HPFinishingPanel",
};
/* keep sorted when changing */
static const char *cups_option_blacklist[] = {
"Collate",
"Copies",
"OutputOrder",
"PageRegion",
"PageSize",
};
static char *
get_option_text (ppd_file_t *ppd_file,
ppd_option_t *option)
{
int i;
char *utf8;
for (i = 0; i < G_N_ELEMENTS (cups_option_translations); i++)
{
if (strcmp (cups_option_translations[i].keyword, option->keyword) == 0)
return g_strdup (_(cups_option_translations[i].translation));
}
utf8 = ppd_text_to_utf8 (ppd_file, option->text);
/* Some ppd files have spaces in the text before the colon */
g_strchomp (utf8);
return utf8;
}
static char *
get_choice_text (ppd_file_t *ppd_file,
ppd_choice_t *choice)
{
int i;
ppd_option_t *option = choice->option;
const char *keyword = option->keyword;
for (i = 0; i < G_N_ELEMENTS (cups_choice_translations); i++)
{
if (strcmp (cups_choice_translations[i].keyword, keyword) == 0 &&
strcmp (cups_choice_translations[i].choice, choice->choice) == 0)
return g_strdup (_(cups_choice_translations[i].translation));
}
return ppd_text_to_utf8 (ppd_file, choice->text);
}
static gboolean
group_has_option (ppd_group_t *group,
ppd_option_t *option)
{
int i;
if (group == NULL)
return FALSE;
if (group->num_options > 0 &&
option >= group->options && option < group->options + group->num_options)
return TRUE;
for (i = 0; i < group->num_subgroups; i++)
{
if (group_has_option (&group->subgroups[i],option))
return TRUE;
}
return FALSE;
}
static void
set_option_off (GtkPrinterOption *option)
{
/* Any of these will do, _set only applies the value
* if its allowed of the option */
gtk_printer_option_set (option, "False");
gtk_printer_option_set (option, "Off");
gtk_printer_option_set (option, "None");
}
static gboolean
value_is_off (const char *value)
{
return (strcasecmp (value, "None") == 0 ||
strcasecmp (value, "Off") == 0 ||
strcasecmp (value, "False") == 0);
}
static char *
ppd_group_name (ppd_group_t *group)
{
#if CUPS_VERSION_MAJOR > 1 || (CUPS_VERSION_MAJOR == 1 && CUPS_VERSION_MINOR > 1) || (CUPS_VERSION_MAJOR == 1 && CUPS_VERSION_MINOR == 1 && CUPS_VERSION_PATCH >= 18)
return group->name;
#else
return group->text;
#endif
}
static int
available_choices (ppd_file_t *ppd,
ppd_option_t *option,
ppd_choice_t ***available,
gboolean keep_if_only_one_option)
{
ppd_option_t *other_option;
int i, j;
gchar *conflicts;
ppd_const_t *constraint;
const char *choice, *other_choice;
ppd_option_t *option1, *option2;
ppd_group_t *installed_options;
int num_conflicts;
gboolean all_default;
int add_auto;
if (available)
*available = NULL;
conflicts = g_new0 (char, option->num_choices);
installed_options = NULL;
for (i = 0; i < ppd->num_groups; i++)
{
char *name;
name = ppd_group_name (&ppd->groups[i]);
if (strcmp (name, "InstallableOptions") == 0)
{
installed_options = &ppd->groups[i];
break;
}
}
for (i = ppd->num_consts, constraint = ppd->consts; i > 0; i--, constraint++)
{
option1 = ppdFindOption (ppd, constraint->option1);
if (option1 == NULL)
continue;
option2 = ppdFindOption (ppd, constraint->option2);
if (option2 == NULL)
continue;
if (option == option1)
{
choice = constraint->choice1;
other_option = option2;
other_choice = constraint->choice2;
}
else if (option == option2)
{
choice = constraint->choice2;
other_option = option1;
other_choice = constraint->choice1;
}
else
continue;
/* We only care of conflicts with installed_options and
PageSize */
if (!group_has_option (installed_options, other_option) &&
(strcmp (other_option->keyword, "PageSize") != 0))
continue;
if (*other_choice == 0)
{
/* Conflict only if the installed option is not off */
if (value_is_off (other_option->defchoice))
continue;
}
/* Conflict if the installed option has the specified default */
else if (strcasecmp (other_choice, other_option->defchoice) != 0)
continue;
if (*choice == 0)
{
/* Conflict with all non-off choices */
for (j = 0; j < option->num_choices; j++)
{
if (!value_is_off (option->choices[j].choice))
conflicts[j] = 1;
}
}
else
{
for (j = 0; j < option->num_choices; j++)
{
if (strcasecmp (option->choices[j].choice, choice) == 0)
conflicts[j] = 1;
}
}
}
num_conflicts = 0;
all_default = TRUE;
for (j = 0; j < option->num_choices; j++)
{
if (conflicts[j])
num_conflicts++;
else if (strcmp (option->choices[j].choice, option->defchoice) != 0)
all_default = FALSE;
}
if ((all_default && !keep_if_only_one_option) ||
(num_conflicts == option->num_choices))
{
g_free (conflicts);
return 0;
}
/* Some ppds don't have a "use printer default" option for
* InputSlot. This means you always have to select a particular slot,
* and you can't auto-pick source based on the paper size. To support
* this we always add an auto option if there isn't one already. If
* the user chooses the generated option we don't send any InputSlot
* value when printing. The way we detect existing auto-cases is based
* on feedback from Michael Sweet of cups fame.
*/
add_auto = 0;
if (strcmp (option->keyword, "InputSlot") == 0)
{
gboolean found_auto = FALSE;
for (j = 0; j < option->num_choices; j++)
{
if (!conflicts[j])
{
if (strcmp (option->choices[j].choice, "Auto") == 0 ||
strcmp (option->choices[j].choice, "AutoSelect") == 0 ||
strcmp (option->choices[j].choice, "Default") == 0 ||
strcmp (option->choices[j].choice, "None") == 0 ||
strcmp (option->choices[j].choice, "PrinterDefault") == 0 ||
strcmp (option->choices[j].choice, "Unspecified") == 0 ||
option->choices[j].code == NULL ||
option->choices[j].code[0] == 0)
{
found_auto = TRUE;
break;
}
}
}
if (!found_auto)
add_auto = 1;
}
if (available)
{
*available = g_new (ppd_choice_t *, option->num_choices - num_conflicts + add_auto);
i = 0;
for (j = 0; j < option->num_choices; j++)
{
if (!conflicts[j])
(*available)[i++] = &option->choices[j];
}
if (add_auto)
(*available)[i++] = NULL;
}
g_free (conflicts);
return option->num_choices - num_conflicts + add_auto;
}
static GtkPrinterOption *
create_pickone_option (ppd_file_t *ppd_file,
ppd_option_t *ppd_option,
const gchar *gtk_name)
{
GtkPrinterOption *option;
ppd_choice_t **available;
char *label;
int n_choices;
int i;
#ifdef HAVE_CUPS_API_1_2
ppd_coption_t *coption;
#endif
g_assert (ppd_option->ui == PPD_UI_PICKONE);
option = NULL;
n_choices = available_choices (ppd_file, ppd_option, &available, g_str_has_prefix (gtk_name, "gtk-"));
if (n_choices > 0)
{
/* right now only support one parameter per custom option
* if more than one print warning and only offer the default choices
*/
label = get_option_text (ppd_file, ppd_option);
#ifdef HAVE_CUPS_API_1_2
coption = ppdFindCustomOption (ppd_file, ppd_option->keyword);
if (coption)
{
ppd_cparam_t *cparam;
cparam = ppdFirstCustomParam (coption);
if (ppdNextCustomParam (coption) == NULL)
{
switch (cparam->type)
{
case PPD_CUSTOM_INT:
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_PICKONE_INT);
break;
case PPD_CUSTOM_PASSCODE:
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_PICKONE_PASSCODE);
break;
case PPD_CUSTOM_PASSWORD:
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_PICKONE_PASSWORD);
break;
case PPD_CUSTOM_REAL:
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_PICKONE_REAL);
break;
case PPD_CUSTOM_STRING:
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_PICKONE_STRING);
break;
#ifdef PRINT_IGNORED_OPTIONS
case PPD_CUSTOM_POINTS:
g_warning ("CUPS Backend: PPD Custom Points Option not supported");
break;
case PPD_CUSTOM_CURVE:
g_warning ("CUPS Backend: PPD Custom Curve Option not supported");
break;
case PPD_CUSTOM_INVCURVE:
g_warning ("CUPS Backend: PPD Custom Inverse Curve Option not supported");
break;
#endif
default:
break;
}
}
#ifdef PRINT_IGNORED_OPTIONS
else
g_warning ("CUPS Backend: Multi-parameter PPD Custom Option not supported");
#endif
}
#endif /* HAVE_CUPS_API_1_2 */
if (!option)
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_PICKONE);
g_free (label);
gtk_printer_option_allocate_choices (option, n_choices);
for (i = 0; i < n_choices; i++)
{
if (available[i] == NULL)
{
/* This was auto-added */
option->choices[i] = g_strdup ("gtk-ignore-value");
option->choices_display[i] = g_strdup (_("Printer Default"));
}
else
{
option->choices[i] = g_strdup (available[i]->choice);
option->choices_display[i] = get_choice_text (ppd_file, available[i]);
}
}
if (option->type != GTK_PRINTER_OPTION_TYPE_PICKONE)
{
if (g_str_has_prefix (ppd_option->defchoice, "Custom."))
gtk_printer_option_set (option, ppd_option->defchoice + 7);
else
gtk_printer_option_set (option, ppd_option->defchoice);
}
else
{
gtk_printer_option_set (option, ppd_option->defchoice);
}
}
#ifdef PRINT_IGNORED_OPTIONS
else
g_warning ("CUPS Backend: Ignoring pickone %s\n", ppd_option->text);
#endif
g_free (available);
return option;
}
static GtkPrinterOption *
create_boolean_option (ppd_file_t *ppd_file,
ppd_option_t *ppd_option,
const gchar *gtk_name)
{
GtkPrinterOption *option;
ppd_choice_t **available;
char *label;
int n_choices;
g_assert (ppd_option->ui == PPD_UI_BOOLEAN);
option = NULL;
n_choices = available_choices (ppd_file, ppd_option, &available, g_str_has_prefix (gtk_name, "gtk-"));
if (n_choices == 2)
{
label = get_option_text (ppd_file, ppd_option);
option = gtk_printer_option_new (gtk_name, label,
GTK_PRINTER_OPTION_TYPE_BOOLEAN);
g_free (label);
gtk_printer_option_allocate_choices (option, 2);
option->choices[0] = g_strdup ("True");
option->choices_display[0] = g_strdup ("True");
option->choices[1] = g_strdup ("False");
option->choices_display[1] = g_strdup ("False");
gtk_printer_option_set (option, ppd_option->defchoice);
}
#ifdef PRINT_IGNORED_OPTIONS
else
g_warning ("CUPS Backend: Ignoring boolean %s\n", ppd_option->text);
#endif
g_free (available);
return option;
}
static gchar *
get_ppd_option_name (const gchar *keyword)
{
int i;
for (i = 0; i < G_N_ELEMENTS (ppd_option_names); i++)
if (strcmp (ppd_option_names[i].ppd_keyword, keyword) == 0)
return g_strdup (ppd_option_names[i].name);
return g_strdup_printf ("cups-%s", keyword);
}
static gchar *
get_lpoption_name (const gchar *lpoption)
{
int i;
for (i = 0; i < G_N_ELEMENTS (ppd_option_names); i++)
if (strcmp (ppd_option_names[i].ppd_keyword, lpoption) == 0)
return g_strdup (ppd_option_names[i].name);
for (i = 0; i < G_N_ELEMENTS (lpoption_names); i++)
if (strcmp (lpoption_names[i].lpoption, lpoption) == 0)
return g_strdup (lpoption_names[i].name);
return g_strdup_printf ("cups-%s", lpoption);
}
static int
strptr_cmp (const void *a,
const void *b)
{
char **aa = (char **)a;
char **bb = (char **)b;
return strcmp (*aa, *bb);
}
static gboolean
string_in_table (gchar *str,
const gchar *table[],
gint table_len)
{
return bsearch (&str, table, table_len, sizeof (char *), (void *)strptr_cmp) != NULL;
}
#define STRING_IN_TABLE(_str, _table) (string_in_table (_str, _table, G_N_ELEMENTS (_table)))
static void
handle_option (GtkPrinterOptionSet *set,
ppd_file_t *ppd_file,
ppd_option_t *ppd_option,
ppd_group_t *toplevel_group,
GtkPrintSettings *settings)
{
GtkPrinterOption *option;
char *name;
int i;
if (STRING_IN_TABLE (ppd_option->keyword, cups_option_blacklist))
return;
name = get_ppd_option_name (ppd_option->keyword);
option = NULL;
if (ppd_option->ui == PPD_UI_PICKONE)
{
option = create_pickone_option (ppd_file, ppd_option, name);
}
else if (ppd_option->ui == PPD_UI_BOOLEAN)
{
option = create_boolean_option (ppd_file, ppd_option, name);
}
#ifdef PRINT_IGNORED_OPTIONS
else
g_warning ("CUPS Backend: Ignoring pickmany setting %s\n", ppd_option->text);
#endif
if (option)
{
char *name;
name = ppd_group_name (toplevel_group);
if (STRING_IN_TABLE (name,
color_group_whitelist) ||
STRING_IN_TABLE (ppd_option->keyword,
color_option_whitelist))
{
option->group = g_strdup ("ColorPage");
}
else if (STRING_IN_TABLE (name,
image_quality_group_whitelist) ||
STRING_IN_TABLE (ppd_option->keyword,
image_quality_option_whitelist))
{
option->group = g_strdup ("ImageQualityPage");
}
else if (STRING_IN_TABLE (name,
finishing_group_whitelist) ||
STRING_IN_TABLE (ppd_option->keyword,
finishing_option_whitelist))
{
option->group = g_strdup ("FinishingPage");
}
else
{
for (i = 0; i < G_N_ELEMENTS (cups_group_translations); i++)
{
if (strcmp (cups_group_translations[i].name, toplevel_group->name) == 0)
{
option->group = g_strdup (_(cups_group_translations[i].translation));
break;
}
}
if (i == G_N_ELEMENTS (cups_group_translations))
option->group = g_strdup (toplevel_group->text);
}
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
}
g_free (name);
}
static void
handle_group (GtkPrinterOptionSet *set,
ppd_file_t *ppd_file,
ppd_group_t *group,
ppd_group_t *toplevel_group,
GtkPrintSettings *settings)
{
gint i;
gchar *name;
/* Ignore installable options */
name = ppd_group_name (toplevel_group);
if (strcmp (name, "InstallableOptions") == 0)
return;
for (i = 0; i < group->num_options; i++)
handle_option (set, ppd_file, &group->options[i], toplevel_group, settings);
for (i = 0; i < group->num_subgroups; i++)
handle_group (set, ppd_file, &group->subgroups[i], toplevel_group, settings);
}
static GtkPrinterOptionSet *
cups_printer_get_options (GtkPrinter *printer,
GtkPrintSettings *settings,
GtkPageSetup *page_setup,
GtkPrintCapabilities capabilities)
{
GtkPrinterOptionSet *set;
GtkPrinterOption *option;
ppd_file_t *ppd_file;
int i;
char *print_at[] = { "now", "at", "on-hold" };
char *n_up[] = {"1", "2", "4", "6", "9", "16" };
char *prio[] = {"100", "80", "50", "30" };
/* Translators: These strings name the possible values of the
* job priority option in the print dialog
*/
char *prio_display[] = {N_("Urgent"), N_("High"), N_("Medium"), N_("Low") };
char *n_up_layout[] = { "lrtb", "lrbt", "rltb", "rlbt", "tblr", "tbrl", "btlr", "btrl" };
/* Translators: These strings name the possible arrangements of
* multiple pages on a sheet when printing
*/
char *n_up_layout_display[] = { N_("Left to right, top to bottom"), N_("Left to right, bottom to top"),
N_("Right to left, top to bottom"), N_("Right to left, bottom to top"),
N_("Top to bottom, left to right"), N_("Top to bottom, right to left"),
N_("Bottom to top, left to right"), N_("Bottom to top, right to left") };
char *name;
int num_opts;
cups_option_t *opts = NULL;
GtkPrintBackendCups *backend;
GtkTextDirection text_direction;
GtkPrinterCups *cups_printer = NULL;
set = gtk_printer_option_set_new ();
/* Cups specific, non-ppd related settings */
/* Translators, this string is used to label the pages-per-sheet option
* in the print dialog
*/
option = gtk_printer_option_new ("gtk-n-up", _("Pages per Sheet"), GTK_PRINTER_OPTION_TYPE_PICKONE);
gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up),
n_up, n_up);
gtk_printer_option_set (option, "1");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
if (cups_printer_get_capabilities (printer) & GTK_PRINT_CAPABILITY_NUMBER_UP_LAYOUT)
{
for (i = 0; i < G_N_ELEMENTS (n_up_layout_display); i++)
n_up_layout_display[i] = _(n_up_layout_display[i]);
/* Translators, this string is used to label the option in the print
* dialog that controls in what order multiple pages are arranged
*/
option = gtk_printer_option_new ("gtk-n-up-layout", _("Page Ordering"), GTK_PRINTER_OPTION_TYPE_PICKONE);
gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up_layout),
n_up_layout, n_up_layout_display);
text_direction = gtk_widget_get_default_direction ();
if (text_direction == GTK_TEXT_DIR_LTR)
gtk_printer_option_set (option, "lrtb");
else
gtk_printer_option_set (option, "rltb");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
}
for (i = 0; i < G_N_ELEMENTS(prio_display); i++)
prio_display[i] = _(prio_display[i]);
/* Translators, this string is used to label the job priority option
* in the print dialog
*/
option = gtk_printer_option_new ("gtk-job-prio", _("Job Priority"), GTK_PRINTER_OPTION_TYPE_PICKONE);
gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (prio),
prio, prio_display);
gtk_printer_option_set (option, "50");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
/* Translators, this string is used to label the billing info entry
* in the print dialog
*/
option = gtk_printer_option_new ("gtk-billing-info", _("Billing Info"), GTK_PRINTER_OPTION_TYPE_STRING);
gtk_printer_option_set (option, "");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
backend = GTK_PRINT_BACKEND_CUPS (gtk_printer_get_backend (printer));
cups_printer = GTK_PRINTER_CUPS (printer);
if (backend != NULL && printer != NULL)
{
char *cover_default[] = {"none", "classified", "confidential", "secret", "standard", "topsecret", "unclassified" };
/* Translators, these strings are names for various 'standard' cover
* pages that the printing system may support.
*/
char *cover_display_default[] = {N_("None"), N_("Classified"), N_("Confidential"), N_("Secret"), N_("Standard"), N_("Top Secret"), N_("Unclassified"),};
char **cover = NULL;
char **cover_display = NULL;
char **cover_display_translated = NULL;
gint num_of_covers = 0;
gpointer value;
gint j;
num_of_covers = backend->number_of_covers;
cover = g_new (char *, num_of_covers + 1);
cover[num_of_covers] = NULL;
cover_display = g_new (char *, num_of_covers + 1);
cover_display[num_of_covers] = NULL;
cover_display_translated = g_new (char *, num_of_covers + 1);
cover_display_translated[num_of_covers] = NULL;
for (i = 0; i < num_of_covers; i++)
{
cover[i] = g_strdup (backend->covers[i]);
value = NULL;
for (j = 0; j < G_N_ELEMENTS (cover_default); j++)
if (strcmp (cover_default[j], cover[i]) == 0)
{
value = cover_display_default[j];
break;
}
cover_display[i] = (value != NULL) ? g_strdup (value) : g_strdup (backend->covers[i]);
}
for (i = 0; i < num_of_covers; i++)
cover_display_translated[i] = _(cover_display[i]);
/* Translators, this is the label used for the option in the print
* dialog that controls the front cover page.
*/
option = gtk_printer_option_new ("gtk-cover-before", _("Before"), GTK_PRINTER_OPTION_TYPE_PICKONE);
gtk_printer_option_choices_from_array (option, num_of_covers,
cover, cover_display_translated);
if (cups_printer->default_cover_before != NULL)
gtk_printer_option_set (option, cups_printer->default_cover_before);
else
gtk_printer_option_set (option, "none");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
/* Translators, this is the label used for the option in the print
* dialog that controls the back cover page.
*/
option = gtk_printer_option_new ("gtk-cover-after", _("After"), GTK_PRINTER_OPTION_TYPE_PICKONE);
gtk_printer_option_choices_from_array (option, num_of_covers,
cover, cover_display_translated);
if (cups_printer->default_cover_after != NULL)
gtk_printer_option_set (option, cups_printer->default_cover_after);
else
gtk_printer_option_set (option, "none");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
g_strfreev (cover);
g_strfreev (cover_display);
g_free (cover_display_translated);
}
/* Translators: this is the name of the option that controls when
* a print job is printed. Possible values are 'now', a specified time,
* or 'on hold'
*/
option = gtk_printer_option_new ("gtk-print-time", _("Print at"), GTK_PRINTER_OPTION_TYPE_PICKONE);
gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (print_at),
print_at, print_at);
gtk_printer_option_set (option, "now");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
/* Translators: this is the name of the option that allows the user
* to specify a time when a print job will be printed.
*/
option = gtk_printer_option_new ("gtk-print-time-text", _("Print at time"), GTK_PRINTER_OPTION_TYPE_STRING);
gtk_printer_option_set (option, "");
set_option_from_settings (option, settings);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
/* Printer (ppd) specific settings */
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file)
{
GtkPaperSize *paper_size;
ppd_option_t *option;
const gchar *ppd_name;
ppdMarkDefaults (ppd_file);
paper_size = gtk_page_setup_get_paper_size (page_setup);
option = ppdFindOption (ppd_file, "PageSize");
if (option)
{
ppd_name = gtk_paper_size_get_ppd_name (paper_size);
if (ppd_name)
strncpy (option->defchoice, ppd_name, PPD_MAX_NAME);
else
{
gchar *custom_name;
char width[G_ASCII_DTOSTR_BUF_SIZE];
char height[G_ASCII_DTOSTR_BUF_SIZE];
g_ascii_formatd (width, sizeof (width), "%.2f",
gtk_paper_size_get_width (paper_size,
GTK_UNIT_POINTS));
g_ascii_formatd (height, sizeof (height), "%.2f",
gtk_paper_size_get_height (paper_size,
GTK_UNIT_POINTS));
/* Translators: this format is used to display a custom
* paper size. The two placeholders are replaced with
* the width and height in points. E.g: "Custom
* 230.4x142.9"
*/
custom_name = g_strdup_printf (_("Custom %sx%s"), width, height);
strncpy (option->defchoice, custom_name, PPD_MAX_NAME);
g_free (custom_name);
}
}
for (i = 0; i < ppd_file->num_groups; i++)
handle_group (set, ppd_file, &ppd_file->groups[i], &ppd_file->groups[i], settings);
}
/* Now honor the user set defaults for this printer */
num_opts = cups_get_user_options (gtk_printer_get_name (printer), 0, &opts);
for (i = 0; i < num_opts; i++)
{
if (STRING_IN_TABLE (opts[i].name, cups_option_blacklist))
continue;
name = get_lpoption_name (opts[i].name);
if (strcmp (name, "cups-job-sheets") == 0)
{
gchar **values;
gint num_values;
values = g_strsplit (opts[i].value, ",", 2);
num_values = g_strv_length (values);
option = gtk_printer_option_set_lookup (set, "gtk-cover-before");
if (option && num_values > 0)
gtk_printer_option_set (option, g_strstrip (values[0]));
option = gtk_printer_option_set_lookup (set, "gtk-cover-after");
if (option && num_values > 1)
gtk_printer_option_set (option, g_strstrip (values[1]));
g_strfreev (values);
}
else if (strcmp (name, "cups-job-hold-until") == 0)
{
GtkPrinterOption *option2 = NULL;
option = gtk_printer_option_set_lookup (set, "gtk-print-time-text");
if (option && opts[i].value)
{
option2 = gtk_printer_option_set_lookup (set, "gtk-print-time");
if (option2)
{
if (strcmp (opts[i].value, "indefinite") == 0)
gtk_printer_option_set (option2, "on-hold");
else
{
gtk_printer_option_set (option2, "at");
gtk_printer_option_set (option, opts[i].value);
}
}
}
}
else if (strcmp (name, "cups-sides") == 0)
{
option = gtk_printer_option_set_lookup (set, "gtk-duplex");
if (option && opts[i].value)
{
if (strcmp (opts[i].value, "two-sided-short-edge") == 0)
gtk_printer_option_set (option, "DuplexTumble");
else if (strcmp (opts[i].value, "two-sided-long-edge") == 0)
gtk_printer_option_set (option, "DuplexNoTumble");
}
}
else
{
option = gtk_printer_option_set_lookup (set, name);
if (option)
gtk_printer_option_set (option, opts[i].value);
}
g_free (name);
}
cupsFreeOptions (num_opts, opts);
return set;
}
static void
mark_option_from_set (GtkPrinterOptionSet *set,
ppd_file_t *ppd_file,
ppd_option_t *ppd_option)
{
GtkPrinterOption *option;
char *name = get_ppd_option_name (ppd_option->keyword);
option = gtk_printer_option_set_lookup (set, name);
if (option)
ppdMarkOption (ppd_file, ppd_option->keyword, option->value);
g_free (name);
}
static void
mark_group_from_set (GtkPrinterOptionSet *set,
ppd_file_t *ppd_file,
ppd_group_t *group)
{
int i;
for (i = 0; i < group->num_options; i++)
mark_option_from_set (set, ppd_file, &group->options[i]);
for (i = 0; i < group->num_subgroups; i++)
mark_group_from_set (set, ppd_file, &group->subgroups[i]);
}
static void
set_conflicts_from_option (GtkPrinterOptionSet *set,
ppd_file_t *ppd_file,
ppd_option_t *ppd_option)
{
GtkPrinterOption *option;
char *name;
if (ppd_option->conflicted)
{
name = get_ppd_option_name (ppd_option->keyword);
option = gtk_printer_option_set_lookup (set, name);
if (option)
gtk_printer_option_set_has_conflict (option, TRUE);
#ifdef PRINT_IGNORED_OPTIONS
else
g_warning ("CUPS Backend: Ignoring conflict for option %s", ppd_option->keyword);
#endif
g_free (name);
}
}
static void
set_conflicts_from_group (GtkPrinterOptionSet *set,
ppd_file_t *ppd_file,
ppd_group_t *group)
{
int i;
for (i = 0; i < group->num_options; i++)
set_conflicts_from_option (set, ppd_file, &group->options[i]);
for (i = 0; i < group->num_subgroups; i++)
set_conflicts_from_group (set, ppd_file, &group->subgroups[i]);
}
static gboolean
cups_printer_mark_conflicts (GtkPrinter *printer,
GtkPrinterOptionSet *options)
{
ppd_file_t *ppd_file;
int num_conflicts;
int i;
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file == NULL)
return FALSE;
ppdMarkDefaults (ppd_file);
for (i = 0; i < ppd_file->num_groups; i++)
mark_group_from_set (options, ppd_file, &ppd_file->groups[i]);
num_conflicts = ppdConflicts (ppd_file);
if (num_conflicts > 0)
{
for (i = 0; i < ppd_file->num_groups; i++)
set_conflicts_from_group (options, ppd_file, &ppd_file->groups[i]);
}
return num_conflicts > 0;
}
struct OptionData {
GtkPrinter *printer;
GtkPrinterOptionSet *options;
GtkPrintSettings *settings;
ppd_file_t *ppd_file;
};
typedef struct {
const char *cups;
const char *standard;
} NameMapping;
static void
map_settings_to_option (GtkPrinterOption *option,
const NameMapping table[],
gint n_elements,
GtkPrintSettings *settings,
const gchar *standard_name,
const gchar *cups_name)
{
int i;
char *name;
const char *cups_value;
const char *standard_value;
/* If the cups-specific setting is set, always use that */
name = g_strdup_printf ("cups-%s", cups_name);
cups_value = gtk_print_settings_get (settings, name);
g_free (name);
if (cups_value != NULL)
{
gtk_printer_option_set (option, cups_value);
return;
}
/* Otherwise we try to convert from the general setting */
standard_value = gtk_print_settings_get (settings, standard_name);
if (standard_value == NULL)
return;
for (i = 0; i < n_elements; i++)
{
if (table[i].cups == NULL && table[i].standard == NULL)
{
gtk_printer_option_set (option, standard_value);
break;
}
else if (table[i].cups == NULL &&
strcmp (table[i].standard, standard_value) == 0)
{
set_option_off (option);
break;
}
else if (strcmp (table[i].standard, standard_value) == 0)
{
gtk_printer_option_set (option, table[i].cups);
break;
}
}
}
static void
map_option_to_settings (const gchar *value,
const NameMapping table[],
gint n_elements,
GtkPrintSettings *settings,
const gchar *standard_name,
const gchar *cups_name)
{
int i;
char *name;
for (i = 0; i < n_elements; i++)
{
if (table[i].cups == NULL && table[i].standard == NULL)
{
gtk_print_settings_set (settings,
standard_name,
value);
break;
}
else if (table[i].cups == NULL && table[i].standard != NULL)
{
if (value_is_off (value))
{
gtk_print_settings_set (settings,
standard_name,
table[i].standard);
break;
}
}
else if (strcmp (table[i].cups, value) == 0)
{
gtk_print_settings_set (settings,
standard_name,
table[i].standard);
break;
}
}
/* Always set the corresponding cups-specific setting */
name = g_strdup_printf ("cups-%s", cups_name);
gtk_print_settings_set (settings, name, value);
g_free (name);
}
static const NameMapping paper_source_map[] = {
{ "Lower", "lower"},
{ "Middle", "middle"},
{ "Upper", "upper"},
{ "Rear", "rear"},
{ "Envelope", "envelope"},
{ "Cassette", "cassette"},
{ "LargeCapacity", "large-capacity"},
{ "AnySmallFormat", "small-format"},
{ "AnyLargeFormat", "large-format"},
{ NULL, NULL}
};
static const NameMapping output_tray_map[] = {
{ "Upper", "upper"},
{ "Lower", "lower"},
{ "Rear", "rear"},
{ NULL, NULL}
};
static const NameMapping duplex_map[] = {
{ "DuplexTumble", "vertical" },
{ "DuplexNoTumble", "horizontal" },
{ NULL, "simplex" }
};
static const NameMapping output_mode_map[] = {
{ "Standard", "normal" },
{ "Normal", "normal" },
{ "Draft", "draft" },
{ "Fast", "draft" },
};
static const NameMapping media_type_map[] = {
{ "Transparency", "transparency"},
{ "Standard", "stationery"},
{ NULL, NULL}
};
static const NameMapping all_map[] = {
{ NULL, NULL}
};
static void
set_option_from_settings (GtkPrinterOption *option,
GtkPrintSettings *settings)
{
const char *cups_value;
char *value;
if (settings == NULL)
return;
if (strcmp (option->name, "gtk-paper-source") == 0)
map_settings_to_option (option, paper_source_map, G_N_ELEMENTS (paper_source_map),
settings, GTK_PRINT_SETTINGS_DEFAULT_SOURCE, "InputSlot");
else if (strcmp (option->name, "gtk-output-tray") == 0)
map_settings_to_option (option, output_tray_map, G_N_ELEMENTS (output_tray_map),
settings, GTK_PRINT_SETTINGS_OUTPUT_BIN, "OutputBin");
else if (strcmp (option->name, "gtk-duplex") == 0)
map_settings_to_option (option, duplex_map, G_N_ELEMENTS (duplex_map),
settings, GTK_PRINT_SETTINGS_DUPLEX, "Duplex");
else if (strcmp (option->name, "cups-OutputMode") == 0)
map_settings_to_option (option, output_mode_map, G_N_ELEMENTS (output_mode_map),
settings, GTK_PRINT_SETTINGS_QUALITY, "OutputMode");
else if (strcmp (option->name, "cups-Resolution") == 0)
{
cups_value = gtk_print_settings_get (settings, option->name);
if (cups_value)
gtk_printer_option_set (option, cups_value);
else
{
int res = gtk_print_settings_get_resolution (settings);
int res_x = gtk_print_settings_get_resolution_x (settings);
int res_y = gtk_print_settings_get_resolution_y (settings);
if (res_x != res_y)
{
value = g_strdup_printf ("%dx%ddpi", res_x, res_y);
gtk_printer_option_set (option, value);
g_free (value);
}
else if (res != 0)
{
value = g_strdup_printf ("%ddpi", res);
gtk_printer_option_set (option, value);
g_free (value);
}
}
}
else if (strcmp (option->name, "gtk-paper-type") == 0)
map_settings_to_option (option, media_type_map, G_N_ELEMENTS (media_type_map),
settings, GTK_PRINT_SETTINGS_MEDIA_TYPE, "MediaType");
else if (strcmp (option->name, "gtk-n-up") == 0)
{
map_settings_to_option (option, all_map, G_N_ELEMENTS (all_map),
settings, GTK_PRINT_SETTINGS_NUMBER_UP, "number-up");
}
else if (strcmp (option->name, "gtk-n-up-layout") == 0)
{
map_settings_to_option (option, all_map, G_N_ELEMENTS (all_map),
settings, GTK_PRINT_SETTINGS_NUMBER_UP_LAYOUT, "number-up-layout");
}
else if (strcmp (option->name, "gtk-billing-info") == 0)
{
cups_value = gtk_print_settings_get (settings, "cups-job-billing");
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
else if (strcmp (option->name, "gtk-job-prio") == 0)
{
cups_value = gtk_print_settings_get (settings, "cups-job-priority");
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
else if (strcmp (option->name, "gtk-cover-before") == 0)
{
cups_value = gtk_print_settings_get (settings, "cover-before");
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
else if (strcmp (option->name, "gtk-cover-after") == 0)
{
cups_value = gtk_print_settings_get (settings, "cover-after");
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
else if (strcmp (option->name, "gtk-print-time") == 0)
{
cups_value = gtk_print_settings_get (settings, "print-at");
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
else if (strcmp (option->name, "gtk-print-time-text") == 0)
{
cups_value = gtk_print_settings_get (settings, "print-at-time");
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
else if (g_str_has_prefix (option->name, "cups-"))
{
cups_value = gtk_print_settings_get (settings, option->name);
if (cups_value)
gtk_printer_option_set (option, cups_value);
}
}
static void
foreach_option_get_settings (GtkPrinterOption *option,
gpointer user_data)
{
struct OptionData *data = user_data;
GtkPrintSettings *settings = data->settings;
const char *value;
value = option->value;
if (strcmp (option->name, "gtk-paper-source") == 0)
map_option_to_settings (value, paper_source_map, G_N_ELEMENTS (paper_source_map),
settings, GTK_PRINT_SETTINGS_DEFAULT_SOURCE, "InputSlot");
else if (strcmp (option->name, "gtk-output-tray") == 0)
map_option_to_settings (value, output_tray_map, G_N_ELEMENTS (output_tray_map),
settings, GTK_PRINT_SETTINGS_OUTPUT_BIN, "OutputBin");
else if (strcmp (option->name, "gtk-duplex") == 0)
map_option_to_settings (value, duplex_map, G_N_ELEMENTS (duplex_map),
settings, GTK_PRINT_SETTINGS_DUPLEX, "Duplex");
else if (strcmp (option->name, "cups-OutputMode") == 0)
map_option_to_settings (value, output_mode_map, G_N_ELEMENTS (output_mode_map),
settings, GTK_PRINT_SETTINGS_QUALITY, "OutputMode");
else if (strcmp (option->name, "cups-Resolution") == 0)
{
int res, res_x, res_y;
if (sscanf (value, "%dx%ddpi", &res_x, &res_y) == 2)
{
if (res_x > 0 && res_y > 0)
gtk_print_settings_set_resolution_xy (settings, res_x, res_y);
}
else if (sscanf (value, "%ddpi", &res) == 1)
{
if (res > 0)
gtk_print_settings_set_resolution (settings, res);
}
gtk_print_settings_set (settings, option->name, value);
}
else if (strcmp (option->name, "gtk-paper-type") == 0)
map_option_to_settings (value, media_type_map, G_N_ELEMENTS (media_type_map),
settings, GTK_PRINT_SETTINGS_MEDIA_TYPE, "MediaType");
else if (strcmp (option->name, "gtk-n-up") == 0)
map_option_to_settings (value, all_map, G_N_ELEMENTS (all_map),
settings, GTK_PRINT_SETTINGS_NUMBER_UP, "number-up");
else if (strcmp (option->name, "gtk-n-up-layout") == 0)
map_option_to_settings (value, all_map, G_N_ELEMENTS (all_map),
settings, GTK_PRINT_SETTINGS_NUMBER_UP_LAYOUT, "number-up-layout");
else if (strcmp (option->name, "gtk-billing-info") == 0 && strlen (value) > 0)
gtk_print_settings_set (settings, "cups-job-billing", value);
else if (strcmp (option->name, "gtk-job-prio") == 0)
gtk_print_settings_set (settings, "cups-job-priority", value);
else if (strcmp (option->name, "gtk-cover-before") == 0)
gtk_print_settings_set (settings, "cover-before", value);
else if (strcmp (option->name, "gtk-cover-after") == 0)
gtk_print_settings_set (settings, "cover-after", value);
else if (strcmp (option->name, "gtk-print-time") == 0)
gtk_print_settings_set (settings, "print-at", value);
else if (strcmp (option->name, "gtk-print-time-text") == 0)
gtk_print_settings_set (settings, "print-at-time", value);
else if (g_str_has_prefix (option->name, "cups-"))
gtk_print_settings_set (settings, option->name, value);
}
static gboolean
supports_am_pm (void)
{
struct tm tmp_tm = { 0 };
char time[8];
int length;
length = strftime (time, sizeof (time), "%p", &tmp_tm);
return length != 0;
}
/* Converts local time to UTC time. Local time has to be in one of these
* formats: HH:MM:SS, HH:MM, HH:MM:SS {am, pm}, HH:MM {am, pm}, HH {am, pm},
* {am, pm} HH:MM:SS, {am, pm} HH:MM, {am, pm} HH.
* Returns a newly allocated string holding UTC time in HH:MM:SS format
* or NULL.
*/
gchar *
localtime_to_utctime (const char *local_time)
{
const char *formats_0[] = {" %I : %M : %S %p ", " %p %I : %M : %S ",
" %H : %M : %S ",
" %I : %M %p ", " %p %I : %M ",
" %H : %M ",
" %I %p ", " %p %I "};
const char *formats_1[] = {" %H : %M : %S ", " %H : %M "};
const char *end = NULL;
struct tm *actual_local_time;
struct tm *actual_utc_time;
struct tm local_print_time;
struct tm utc_print_time;
struct tm diff_time;
gchar *utc_time = NULL;
int i, n;
if (local_time == NULL || local_time[0] == '\0')
return NULL;
n = supports_am_pm () ? G_N_ELEMENTS (formats_0) : G_N_ELEMENTS (formats_1);
for (i = 0; i < n; i++)
{
local_print_time.tm_hour = 0;
local_print_time.tm_min = 0;
local_print_time.tm_sec = 0;
if (supports_am_pm ())
end = strptime (local_time, formats_0[i], &local_print_time);
else
end = strptime (local_time, formats_1[i], &local_print_time);
if (end != NULL && end[0] == '\0')
break;
}
if (end != NULL && end[0] == '\0')
{
time_t rawtime;
time (&rawtime);
actual_utc_time = g_memdup (gmtime (&rawtime), sizeof (struct tm));
actual_local_time = g_memdup (localtime (&rawtime), sizeof (struct tm));
diff_time.tm_hour = actual_utc_time->tm_hour - actual_local_time->tm_hour;
diff_time.tm_min = actual_utc_time->tm_min - actual_local_time->tm_min;
diff_time.tm_sec = actual_utc_time->tm_sec - actual_local_time->tm_sec;
utc_print_time.tm_hour = ((local_print_time.tm_hour + diff_time.tm_hour) + 24) % 24;
utc_print_time.tm_min = ((local_print_time.tm_min + diff_time.tm_min) + 60) % 60;
utc_print_time.tm_sec = ((local_print_time.tm_sec + diff_time.tm_sec) + 60) % 60;
utc_time = g_strdup_printf ("%02d:%02d:%02d",
utc_print_time.tm_hour,
utc_print_time.tm_min,
utc_print_time.tm_sec);
}
return utc_time;
}
static void
cups_printer_get_settings_from_options (GtkPrinter *printer,
GtkPrinterOptionSet *options,
GtkPrintSettings *settings)
{
struct OptionData data;
const char *print_at, *print_at_time;
data.printer = printer;
data.options = options;
data.settings = settings;
data.ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
gtk_printer_option_set_foreach (options, foreach_option_get_settings, &data);
if (data.ppd_file != NULL)
{
GtkPrinterOption *cover_before, *cover_after;
cover_before = gtk_printer_option_set_lookup (options, "gtk-cover-before");
cover_after = gtk_printer_option_set_lookup (options, "gtk-cover-after");
if (cover_before && cover_after)
{
char *value = g_strdup_printf ("%s,%s", cover_before->value, cover_after->value);
gtk_print_settings_set (settings, "cups-job-sheets", value);
g_free (value);
}
print_at = gtk_print_settings_get (settings, "print-at");
print_at_time = gtk_print_settings_get (settings, "print-at-time");
if (strcmp (print_at, "at") == 0)
{
gchar *utc_time = NULL;
utc_time = localtime_to_utctime (print_at_time);
if (utc_time != NULL)
{
gtk_print_settings_set (settings, "cups-job-hold-until", utc_time);
g_free (utc_time);
}
else
gtk_print_settings_set (settings, "cups-job-hold-until", print_at_time);
}
else if (strcmp (print_at, "on-hold") == 0)
gtk_print_settings_set (settings, "cups-job-hold-until", "indefinite");
}
}
static void
cups_printer_prepare_for_print (GtkPrinter *printer,
GtkPrintJob *print_job,
GtkPrintSettings *settings,
GtkPageSetup *page_setup)
{
GtkPageSet page_set;
GtkPaperSize *paper_size;
const char *ppd_paper_name;
double scale;
GtkPrintCapabilities capabilities;
capabilities = cups_printer_get_capabilities (printer);
print_job->print_pages = gtk_print_settings_get_print_pages (settings);
print_job->page_ranges = NULL;
print_job->num_page_ranges = 0;
if (print_job->print_pages == GTK_PRINT_PAGES_RANGES)
print_job->page_ranges =
gtk_print_settings_get_page_ranges (settings,
&print_job->num_page_ranges);
if (capabilities & GTK_PRINT_CAPABILITY_COLLATE)
{
if (gtk_print_settings_get_collate (settings))
gtk_print_settings_set (settings, "cups-Collate", "True");
print_job->collate = FALSE;
}
else
{
print_job->collate = gtk_print_settings_get_collate (settings);
}
if (capabilities & GTK_PRINT_CAPABILITY_REVERSE)
{
if (gtk_print_settings_get_reverse (settings))
gtk_print_settings_set (settings, "cups-OutputOrder", "Reverse");
print_job->reverse = FALSE;
}
else
{
print_job->reverse = gtk_print_settings_get_reverse (settings);
}
if (capabilities & GTK_PRINT_CAPABILITY_COPIES)
{
if (gtk_print_settings_get_n_copies (settings) > 1)
gtk_print_settings_set_int (settings, "cups-copies",
gtk_print_settings_get_n_copies (settings));
print_job->num_copies = 1;
}
else
{
print_job->num_copies = gtk_print_settings_get_n_copies (settings);
}
scale = gtk_print_settings_get_scale (settings);
print_job->scale = 1.0;
if (scale != 100.0)
print_job->scale = scale/100.0;
page_set = gtk_print_settings_get_page_set (settings);
if (page_set == GTK_PAGE_SET_EVEN)
gtk_print_settings_set (settings, "cups-page-set", "even");
else if (page_set == GTK_PAGE_SET_ODD)
gtk_print_settings_set (settings, "cups-page-set", "odd");
print_job->page_set = GTK_PAGE_SET_ALL;
paper_size = gtk_page_setup_get_paper_size (page_setup);
ppd_paper_name = gtk_paper_size_get_ppd_name (paper_size);
if (ppd_paper_name != NULL)
gtk_print_settings_set (settings, "cups-PageSize", ppd_paper_name);
else
{
char width[G_ASCII_DTOSTR_BUF_SIZE];
char height[G_ASCII_DTOSTR_BUF_SIZE];
char *custom_name;
g_ascii_formatd (width, sizeof (width), "%.2f", gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS));
g_ascii_formatd (height, sizeof (height), "%.2f", gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS));
custom_name = g_strdup_printf (("Custom.%sx%s"), width, height);
gtk_print_settings_set (settings, "cups-PageSize", custom_name);
g_free (custom_name);
}
if (gtk_print_settings_get_number_up (settings) > 1)
{
GtkNumberUpLayout layout = gtk_print_settings_get_number_up_layout (settings);
GEnumClass *enum_class;
GEnumValue *enum_value;
switch (gtk_page_setup_get_orientation (page_setup))
{
case GTK_PAGE_ORIENTATION_PORTRAIT:
break;
case GTK_PAGE_ORIENTATION_LANDSCAPE:
if (layout < 4)
layout = layout + 2 + 4 * (1 - layout / 2);
else
layout = layout - 3 - 2 * (layout % 2);
break;
case GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT:
layout = (layout + 3 - 2 * (layout % 2)) % 4 + 4 * (layout / 4);
break;
case GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE:
if (layout < 4)
layout = layout + 5 - 2 * (layout % 2);
else
layout = layout - 6 + 4 * (1 - (layout - 4) / 2);
break;
}
enum_class = g_type_class_ref (GTK_TYPE_NUMBER_UP_LAYOUT);
enum_value = g_enum_get_value (enum_class, layout);
gtk_print_settings_set (settings, "cups-number-up-layout", enum_value->value_nick);
g_type_class_unref (enum_class);
if (!(capabilities & GTK_PRINT_CAPABILITY_NUMBER_UP))
{
print_job->number_up = gtk_print_settings_get_number_up (settings);
print_job->number_up_layout = gtk_print_settings_get_number_up_layout (settings);
}
}
print_job->rotate_to_orientation = TRUE;
}
static GtkPageSetup *
create_page_setup (ppd_file_t *ppd_file,
ppd_size_t *size)
{
char *display_name;
GtkPageSetup *page_setup;
GtkPaperSize *paper_size;
ppd_option_t *option;
ppd_choice_t *choice;
display_name = NULL;
option = ppdFindOption (ppd_file, "PageSize");
if (option)
{
choice = ppdFindChoice (option, size->name);
if (choice)
display_name = ppd_text_to_utf8 (ppd_file, choice->text);
}
if (display_name == NULL)
display_name = g_strdup (size->name);
page_setup = gtk_page_setup_new ();
paper_size = gtk_paper_size_new_from_ppd (size->name,
display_name,
size->width,
size->length);
gtk_page_setup_set_paper_size (page_setup, paper_size);
gtk_paper_size_free (paper_size);
gtk_page_setup_set_top_margin (page_setup, size->length - size->top, GTK_UNIT_POINTS);
gtk_page_setup_set_bottom_margin (page_setup, size->bottom, GTK_UNIT_POINTS);
gtk_page_setup_set_left_margin (page_setup, size->left, GTK_UNIT_POINTS);
gtk_page_setup_set_right_margin (page_setup, size->width - size->right, GTK_UNIT_POINTS);
g_free (display_name);
return page_setup;
}
static GList *
cups_printer_list_papers (GtkPrinter *printer)
{
ppd_file_t *ppd_file;
ppd_size_t *size;
GtkPageSetup *page_setup;
GList *l;
int i;
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file == NULL)
return NULL;
l = NULL;
for (i = 0; i < ppd_file->num_sizes; i++)
{
size = &ppd_file->sizes[i];
page_setup = create_page_setup (ppd_file, size);
l = g_list_prepend (l, page_setup);
}
return g_list_reverse (l);
}
static GtkPageSetup *
cups_printer_get_default_page_size (GtkPrinter *printer)
{
ppd_file_t *ppd_file;
ppd_size_t *size;
ppd_option_t *option;
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file == NULL)
return NULL;
option = ppdFindOption (ppd_file, "PageSize");
if (option == NULL)
return NULL;
size = ppdPageSize (ppd_file, option->defchoice);
if (size == NULL)
return NULL;
return create_page_setup (ppd_file, size);
}
static gboolean
cups_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right)
{
ppd_file_t *ppd_file;
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file == NULL)
return FALSE;
*left = ppd_file->custom_margins[0];
*bottom = ppd_file->custom_margins[1];
*right = ppd_file->custom_margins[2];
*top = ppd_file->custom_margins[3];
return TRUE;
}
static GtkPrintCapabilities
cups_printer_get_capabilities (GtkPrinter *printer)
{
GtkPrintCapabilities capabilities = 0;
GtkPrinterCups *cups_printer = GTK_PRINTER_CUPS (printer);
if (gtk_printer_cups_get_ppd (cups_printer))
{
capabilities = GTK_PRINT_CAPABILITY_REVERSE;
}
if (cups_printer->supports_copies)
{
capabilities |= GTK_PRINT_CAPABILITY_COPIES;
}
if (cups_printer->supports_collate)
{
capabilities |= GTK_PRINT_CAPABILITY_COLLATE;
}
if (cups_printer->supports_number_up)
{
capabilities |= GTK_PRINT_CAPABILITY_NUMBER_UP;
#if (CUPS_VERSION_MAJOR == 1 && CUPS_VERSION_MINOR >= 1 && CUPS_VERSION_PATCH >= 15) || (CUPS_VERSION_MAJOR == 1 && CUPS_VERSION_MINOR > 1) || CUPS_VERSION_MAJOR > 1
capabilities |= GTK_PRINT_CAPABILITY_NUMBER_UP_LAYOUT;
#endif
}
return capabilities;
}