forked from AuroraMiddleware/gtk
eed9e72e83
Show printers advertised by avahi on local network. CUPS backend now looks for _ipps._tcp and _ipp._tcp services offered by avahi. If it finds such a service (printer) it requests its attributes through IPP_GET_PRINTER_ATTRIBUTES ipp request and adds it to the list of printers. Such printer behaves like a remote printer then. If an avahi printer is a default printer then it is considered default by the backend only if there is no local or remote default printer. This functionality is enabled when building Gtk+ with CUPS 1.6 or later because it replaces browsing protocol removed in CUPS 1.6. https://bugzilla.gnome.org/show_bug.cgi?id=688956
196 lines
6.2 KiB
C
196 lines
6.2 KiB
C
/* gtkcupsutils.h
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* Copyright (C) 2006 John (J5) Palmieri <johnp@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GTK_CUPS_UTILS_H__
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#define __GTK_CUPS_UTILS_H__
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#include <glib.h>
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#include <cups/cups.h>
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#include <cups/language.h>
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#include <cups/http.h>
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#include <cups/ipp.h>
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G_BEGIN_DECLS
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typedef struct _GtkCupsRequest GtkCupsRequest;
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typedef struct _GtkCupsResult GtkCupsResult;
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typedef struct _GtkCupsConnectionTest GtkCupsConnectionTest;
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typedef enum
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{
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GTK_CUPS_ERROR_HTTP,
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GTK_CUPS_ERROR_IPP,
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GTK_CUPS_ERROR_IO,
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GTK_CUPS_ERROR_AUTH,
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GTK_CUPS_ERROR_GENERAL
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} GtkCupsErrorType;
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typedef enum
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{
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GTK_CUPS_POST,
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GTK_CUPS_GET
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} GtkCupsRequestType;
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/**
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* Direction we should be polling the http socket on.
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* We are either reading or writting at each state.
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* This makes it easy for mainloops to connect to poll.
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*/
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typedef enum
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{
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GTK_CUPS_HTTP_IDLE,
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GTK_CUPS_HTTP_READ,
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GTK_CUPS_HTTP_WRITE
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} GtkCupsPollState;
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typedef enum
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{
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GTK_CUPS_CONNECTION_AVAILABLE,
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GTK_CUPS_CONNECTION_NOT_AVAILABLE,
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GTK_CUPS_CONNECTION_IN_PROGRESS
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} GtkCupsConnectionState;
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typedef enum
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{
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GTK_CUPS_PASSWORD_NONE,
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GTK_CUPS_PASSWORD_REQUESTED,
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GTK_CUPS_PASSWORD_HAS,
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GTK_CUPS_PASSWORD_APPLIED,
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GTK_CUPS_PASSWORD_NOT_VALID
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} GtkCupsPasswordState;
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struct _GtkCupsRequest
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{
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GtkCupsRequestType type;
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http_t *http;
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http_status_t last_status;
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ipp_t *ipp_request;
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gchar *server;
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gchar *resource;
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GIOChannel *data_io;
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gint attempts;
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GtkCupsResult *result;
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gint state;
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GtkCupsPollState poll_state;
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guint64 bytes_received;
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gchar *password;
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gchar *username;
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gint own_http : 1;
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gint need_password : 1;
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gint need_auth_info : 1;
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gchar **auth_info_required;
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gchar **auth_info;
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GtkCupsPasswordState password_state;
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};
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struct _GtkCupsConnectionTest
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{
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GtkCupsConnectionState at_init;
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http_addrlist_t *addrlist;
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http_addrlist_t *current_addr;
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http_addrlist_t *last_wrong_addr;
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gint socket;
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};
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#define GTK_CUPS_REQUEST_START 0
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#define GTK_CUPS_REQUEST_DONE 500
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/* POST states */
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enum
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{
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GTK_CUPS_POST_CONNECT = GTK_CUPS_REQUEST_START,
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GTK_CUPS_POST_SEND,
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GTK_CUPS_POST_WRITE_REQUEST,
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GTK_CUPS_POST_WRITE_DATA,
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GTK_CUPS_POST_CHECK,
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GTK_CUPS_POST_AUTH,
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GTK_CUPS_POST_READ_RESPONSE,
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GTK_CUPS_POST_DONE = GTK_CUPS_REQUEST_DONE
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};
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/* GET states */
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enum
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{
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GTK_CUPS_GET_CONNECT = GTK_CUPS_REQUEST_START,
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GTK_CUPS_GET_SEND,
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GTK_CUPS_GET_CHECK,
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GTK_CUPS_GET_AUTH,
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GTK_CUPS_GET_READ_DATA,
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GTK_CUPS_GET_DONE = GTK_CUPS_REQUEST_DONE
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};
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GtkCupsRequest * gtk_cups_request_new_with_username (http_t *connection,
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GtkCupsRequestType req_type,
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gint operation_id,
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GIOChannel *data_io,
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const char *server,
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const char *resource,
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const char *username);
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GtkCupsRequest * gtk_cups_request_new (http_t *connection,
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GtkCupsRequestType req_type,
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gint operation_id,
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GIOChannel *data_io,
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const char *server,
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const char *resource);
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void gtk_cups_request_ipp_add_string (GtkCupsRequest *request,
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ipp_tag_t group,
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ipp_tag_t tag,
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const char *name,
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const char *charset,
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const char *value);
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void gtk_cups_request_ipp_add_strings (GtkCupsRequest *request,
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ipp_tag_t group,
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ipp_tag_t tag,
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const char *name,
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int num_values,
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const char *charset,
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const char * const *values);
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const char * gtk_cups_request_ipp_get_string (GtkCupsRequest *request,
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ipp_tag_t tag,
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const char *name);
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gboolean gtk_cups_request_read_write (GtkCupsRequest *request,
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gboolean connect_only);
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GtkCupsPollState gtk_cups_request_get_poll_state (GtkCupsRequest *request);
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void gtk_cups_request_free (GtkCupsRequest *request);
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GtkCupsResult * gtk_cups_request_get_result (GtkCupsRequest *request);
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gboolean gtk_cups_request_is_done (GtkCupsRequest *request);
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void gtk_cups_request_encode_option (GtkCupsRequest *request,
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const gchar *option,
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const gchar *value);
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void gtk_cups_request_set_ipp_version (GtkCupsRequest *request,
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gint major,
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gint minor);
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gboolean gtk_cups_result_is_error (GtkCupsResult *result);
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ipp_t * gtk_cups_result_get_response (GtkCupsResult *result);
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GtkCupsErrorType gtk_cups_result_get_error_type (GtkCupsResult *result);
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int gtk_cups_result_get_error_status (GtkCupsResult *result);
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int gtk_cups_result_get_error_code (GtkCupsResult *result);
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const char * gtk_cups_result_get_error_string (GtkCupsResult *result);
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GtkCupsConnectionTest * gtk_cups_connection_test_new (const char *server);
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GtkCupsConnectionState gtk_cups_connection_test_get_state (GtkCupsConnectionTest *test);
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void gtk_cups_connection_test_free (GtkCupsConnectionTest *test);
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G_END_DECLS
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#endif
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