[gdm/wip/shell-greeter: 1/3] greeter: export library for being a greeter
- From: Ray Strode <halfline src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gdm/wip/shell-greeter: 1/3] greeter: export library for being a greeter
- Date: Mon, 29 Aug 2011 12:41:54 +0000 (UTC)
commit 7e132890463a0ffe6a351f88bada8ee9dda5b863
Author: Ray Strode <rstrode redhat com>
Date: Thu May 26 10:16:51 2011 -0400
greeter: export library for being a greeter
This will make it easier for people to write external greeters.
Of course, there are still no guarantees about interface stability.
configure.ac | 10 +
gui/Makefile.am | 1 +
gui/libgdmgreeter/Makefile.am | 78 ++
gui/libgdmgreeter/gdm-greeter-client.c | 1243 ++++++++++++++++++++++++++++++
gui/libgdmgreeter/gdm-greeter-client.h | 126 +++
gui/libgdmgreeter/gdm-greeter-sessions.c | 280 +++++++
gui/libgdmgreeter/gdm-greeter-sessions.h | 37 +
gui/libgdmgreeter/gdmgreeter.pc.in | 10 +
8 files changed, 1785 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 394d175..fa05acb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -194,6 +194,14 @@ AC_PATH_PROG(GCONFTOOL, gconftool-2)
AM_GCONF_SOURCE_2
+LIBGDMGREETER_LIBS="$SIMPLE_GREETER_LIBS"
+AC_SUBST(LIBGDMGREETER_LIBS)
+LIBGDMGREETER_CFLAGS="$SIMPLE_GREETER_CFLAGS"
+AC_SUBST(LIBGDMGREETER_CFLAGS)
+GOBJECT_INTROSPECTION_CHECK([0.9.12])
+LIBGDMGREETER_GIR_INCLUDES="GLib-2.0 GObject-2.0 DBusGLib-1.0"
+AC_SUBST(LIBGDMGREETER_GIR_INCLUDES)
+
dnl ---------------------------------------------------------------------------
dnl - Configuration file stuff
dnl ---------------------------------------------------------------------------
@@ -1421,6 +1429,8 @@ Makefile
daemon/Makefile
docs/Makefile
gui/Makefile
+gui/libgdmgreeter/Makefile
+gui/libgdmgreeter/gdmgreeter.pc
gui/simple-greeter/Makefile
gui/simple-greeter/libgdmsimplegreeter/Makefile
gui/simple-greeter/libgdmsimplegreeter/gdmsimplegreeter.pc
diff --git a/gui/Makefile.am b/gui/Makefile.am
index bda3f7a..d14ed46 100644
--- a/gui/Makefile.am
+++ b/gui/Makefile.am
@@ -1,6 +1,7 @@
NULL =
SUBDIRS = \
+ libgdmgreeter \
simple-greeter \
$(NULL)
diff --git a/gui/libgdmgreeter/Makefile.am b/gui/libgdmgreeter/Makefile.am
new file mode 100644
index 0000000..f1e2a51
--- /dev/null
+++ b/gui/libgdmgreeter/Makefile.am
@@ -0,0 +1,78 @@
+END_OF_LIST =
+
+BUILT_SOURCES = $(END_OF_LIST)
+CLEANFILES = $(END_OF_LIST)
+
+AM_CPPFLAGS = \
+ -I. \
+ -I.. \
+ -DG_LOG_DOMAIN=\"GdmGreeter\" \
+ -DDMCONFDIR=\""$(dmconfdir)"\" \
+ -DDATADIR=\""$(datadir)"\" \
+ $(END_OF_LIST)
+
+lib_LTLIBRARIES = \
+ libgdmgreeter.la \
+ $(END_OF_LIST)
+
+libgdmgreeterdir = $(includedir)/gdm/greeter
+libgdmgreeter_HEADERS = \
+ gdm-greeter-client.h \
+ gdm-greeter-sessions.h \
+ $(END_OF_LIST)
+
+libgdmgreeter_la_CFLAGS = \
+ $(LIBGDMGREETER_CFLAGS) \
+ $(END_OF_LIST)
+libgdmgreeter_la_LDFLAGS = \
+ -export-symbols-regex '^[^_].*' \
+ -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
+ -no-undefined \
+ $(END_OF_LIST)
+
+libgdmgreeter_la_LIBADD = \
+ $(LIBGDMGREETER_LIBS) \
+ $(END_OF_LIST)
+
+libgdmgreeter_la_SOURCES = \
+ $(libgdmgreeter_HEADERS) \
+ gdm-greeter-client.c \
+ gdm-greeter-sessions.c \
+ $(END_OF_LIST)
+
+pkgconfigdir = $(libdir)/pkgconfig
+dist_pkgconfig_DATA = gdmgreeter.pc
+
+-include $(INTROSPECTION_MAKEFILE)
+
+if HAVE_INTROSPECTION
+girdir = $(datadir)/gir-1.0
+gir_DATA = GdmGreeter-1.0.gir
+typelibsdir = $(libdir)/girepository-1.0
+typelibs_DATA = $(gir_DATA:.gir=.typelib)
+INTROSPECTION_GIRS = $(gir_DATA)
+
+GdmGreeter-1.0.gir: \
+ $(INTROSPECTION_SCANNER) \
+ libgdmgreeter.la \
+ Makefile \
+ $(END_OF_LIST)
+
+GdmGreeter_1_0_gir_SCANNERFLAGS = \
+ --warn-all \
+ --namespace=GdmGreeter \
+ --identifier-prefix GdmGreeter \
+ $(libgdmgreeter_la_CFLAGS) \
+ $(END_OF_LIST)
+
+GdmGreeter_1_0_gir_INCLUDES = $(LIBGDMGREETER_GIR_INCLUDES)
+GdmGreeter_1_0_gir_LIBS = libgdmgreeter.la
+GdmGreeter_1_0_gir_FILES = \
+ $(filter-out %-private.h, $(libgdmgreeter_la_SOURCES)) \
+ $(BUILT_SOURCES) \
+ $(END_OF_LIST)
+
+CLEANFILES += $(gir_DATA) $(typelibs_DATA)
+endif
+
+MAINTAINERCLEANFILES = Makefile.in
diff --git a/gui/libgdmgreeter/gdm-greeter-client.c b/gui/libgdmgreeter/gdm-greeter-client.c
new file mode 100644
index 0000000..6cf5b58
--- /dev/null
+++ b/gui/libgdmgreeter/gdm-greeter-client.c
@@ -0,0 +1,1243 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <mccann jhu edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+#define DBUS_API_SUBJECT_TO_CHANGE
+#include <dbus/dbus.h>
+#include <dbus/dbus-glib.h>
+#include <dbus/dbus-glib-lowlevel.h>
+
+#include "gdm-greeter-client.h"
+
+#define GDM_GREETER_CLIENT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_GREETER_CLIENT, GdmGreeterClientPrivate))
+
+#define GREETER_SERVER_DBUS_PATH "/org/gnome/DisplayManager/GreeterServer"
+#define GREETER_SERVER_DBUS_INTERFACE "org.gnome.DisplayManager.GreeterServer"
+
+#define GDM_DBUS_NAME "org.gnome.DisplayManager"
+#define GDM_DBUS_DISPLAY_INTERFACE "org.gnome.DisplayManager.Display"
+
+struct GdmGreeterClientPrivate
+{
+ DBusConnection *connection;
+ char *address;
+
+ char *display_id;
+ gboolean display_is_local;
+
+ guint32 is_connected : 1;
+};
+
+enum {
+ PROP_0,
+ PROP_DISPLAY_IS_LOCAL
+};
+
+enum {
+ INFO,
+ PROBLEM,
+ INFO_QUERY,
+ SECRET_INFO_QUERY,
+ SERVICE_UNAVAILABLE,
+ READY,
+ CONVERSATION_STOPPED,
+ RESET,
+ AUTHENTICATION_FAILED,
+ SELECTED_USER_CHANGED,
+ DEFAULT_SESSION_CHANGED,
+ TIMED_LOGIN_REQUESTED,
+ SESSION_OPENED,
+ LAST_SIGNAL
+};
+
+static guint gdm_greeter_client_signals [LAST_SIGNAL];
+
+static void gdm_greeter_client_class_init (GdmGreeterClientClass *klass);
+static void gdm_greeter_client_init (GdmGreeterClient *greeter_client);
+static void gdm_greeter_client_finalize (GObject *object);
+
+G_DEFINE_TYPE (GdmGreeterClient, gdm_greeter_client, G_TYPE_OBJECT)
+
+static gpointer client_object = NULL;
+
+GQuark
+gdm_greeter_client_error_quark (void)
+{
+ static GQuark error_quark = 0;
+
+ if (error_quark == 0)
+ error_quark = g_quark_from_static_string ("gdm-greeter-client");
+
+ return error_quark;
+}
+
+/**
+ * gdm_greeter_client_get_display_is_local:
+ *
+ * @client: a #GdmGreeterClient
+ *
+ * Returns: %TRUE if display is local display
+ */
+gboolean
+gdm_greeter_client_get_display_is_local (GdmGreeterClient *client)
+{
+ g_return_val_if_fail (GDM_IS_GREETER_CLIENT (client), FALSE);
+
+ return client->priv->display_is_local;
+}
+
+static void
+emit_string_and_int_signal_for_message (GdmGreeterClient *client,
+ const char *name,
+ DBusMessage *message,
+ int signal)
+{
+ DBusError error;
+ const char *text;
+ int number;
+ dbus_bool_t res;
+
+ dbus_error_init (&error);
+ res = dbus_message_get_args (message,
+ &error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INT32, &number,
+ DBUS_TYPE_INVALID);
+ if (res) {
+
+ g_debug ("GdmGreeterClient: Received %s (%s %d)", name, text, number);
+
+ g_signal_emit (client,
+ gdm_greeter_client_signals[signal],
+ 0, text, number);
+ } else {
+ g_warning ("Unable to get arguments: %s", error.message);
+ dbus_error_free (&error);
+ }
+}
+
+static void
+emit_string_and_string_signal_for_message (GdmGreeterClient *client,
+ const char *name,
+ DBusMessage *message,
+ int signal)
+{
+ DBusError error;
+ char *text1;
+ char *text2;
+ dbus_bool_t res;
+
+ dbus_error_init (&error);
+ res = dbus_message_get_args (message,
+ &error,
+ DBUS_TYPE_STRING, &text1,
+ DBUS_TYPE_STRING, &text2,
+ DBUS_TYPE_INVALID);
+ if (res) {
+
+ g_debug ("GdmGreeterClient: Received %s (%s, %s)", name, text1, text2);
+
+ g_signal_emit (client,
+ gdm_greeter_client_signals[signal],
+ 0, text1, text2);
+ } else {
+ g_warning ("Unable to get arguments: %s", error.message);
+ dbus_error_free (&error);
+ }
+ dbus_error_free (&error);
+}
+
+static void
+emit_string_signal_for_message (GdmGreeterClient *client,
+ const char *name,
+ DBusMessage *message,
+ int signal)
+{
+ DBusError error;
+ const char *text;
+ dbus_bool_t res;
+
+ dbus_error_init (&error);
+ res = dbus_message_get_args (message,
+ &error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID);
+ if (res) {
+
+ g_debug ("GdmGreeterClient: Received %s (%s)", name, text);
+
+ g_signal_emit (client,
+ gdm_greeter_client_signals[signal],
+ 0, text);
+ } else {
+ g_warning ("Unable to get arguments: %s", error.message);
+ dbus_error_free (&error);
+ }
+}
+
+static void
+on_selected_user_changed (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_signal_for_message (client, "SelectedUserChanged", message, SELECTED_USER_CHANGED);
+}
+
+static void
+on_default_session_changed (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_signal_for_message (client, "DefaultSessionNameChanged", message, DEFAULT_SESSION_CHANGED);
+}
+
+static void
+on_timed_login_requested (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_and_int_signal_for_message (client, "TimedLoginRequested", message, TIMED_LOGIN_REQUESTED);
+}
+
+static void
+on_session_opened (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_signal_for_message (client, "SessionOpened", message, SESSION_OPENED);
+}
+
+static void
+on_info_query (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_and_string_signal_for_message (client, "InfoQuery", message, INFO_QUERY);
+}
+
+static void
+on_secret_info_query (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_and_string_signal_for_message (client, "SecretInfoQuery", message, SECRET_INFO_QUERY);
+}
+
+static void
+on_info (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_and_string_signal_for_message (client, "Info", message, INFO);
+}
+
+static void
+on_problem (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_and_string_signal_for_message (client, "Problem", message, PROBLEM);
+}
+
+static void
+on_service_unavailable (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_signal_for_message (client, "ServiceUnavailable", message, SERVICE_UNAVAILABLE);
+}
+
+static void
+on_ready (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_signal_for_message (client, "Ready", message, READY);
+}
+
+static void
+on_conversation_stopped (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ emit_string_signal_for_message (client, "ConversationStopped", message, CONVERSATION_STOPPED);
+}
+
+static void
+on_reset (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ g_debug ("GdmGreeterClient: Reset");
+
+ g_signal_emit (client,
+ gdm_greeter_client_signals[RESET],
+ 0);
+}
+
+static void
+on_authentication_failed (GdmGreeterClient *client,
+ DBusMessage *message)
+{
+ g_debug ("GdmGreeterClient: Authentication failed");
+
+ g_signal_emit (client,
+ gdm_greeter_client_signals[AUTHENTICATION_FAILED],
+ 0);
+}
+
+static gboolean
+send_dbus_string_method (DBusConnection *connection,
+ const char *method,
+ const char *payload)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ const char *str;
+
+ if (payload != NULL) {
+ str = payload;
+ } else {
+ str = "";
+ }
+
+ g_debug ("GdmGreeterClient: Calling %s", method);
+ message = dbus_message_new_method_call (NULL,
+ GREETER_SERVER_DBUS_PATH,
+ GREETER_SERVER_DBUS_INTERFACE,
+ method);
+ if (message == NULL) {
+ g_warning ("Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_message_iter_init_append (message, &iter);
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_STRING,
+ &str);
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1,
+ &error);
+
+ dbus_message_unref (message);
+
+ if (dbus_error_is_set (&error)) {
+ g_warning ("%s %s raised: %s\n",
+ method,
+ error.name,
+ error.message);
+ return FALSE;
+ }
+ if (reply != NULL) {
+ dbus_message_unref (reply);
+ }
+ dbus_connection_flush (connection);
+
+ return TRUE;
+}
+
+static gboolean
+send_dbus_string_and_bool_method (DBusConnection *connection,
+ const char *method,
+ const char *string_payload,
+ gboolean bool_payload)
+{
+ DBusMessage *message;
+ DBusMessageIter iter;
+ const char *str;
+
+ if (string_payload != NULL) {
+ str = string_payload;
+ } else {
+ str = "";
+ }
+
+ g_debug ("GdmGreeterClient: Calling %s", method);
+ message = dbus_message_new_method_call (NULL,
+ GREETER_SERVER_DBUS_PATH,
+ GREETER_SERVER_DBUS_INTERFACE,
+ method);
+ if (message == NULL) {
+ g_warning ("Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_message_iter_init_append (message, &iter);
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_STRING,
+ &str);
+
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_BOOLEAN,
+ &bool_payload);
+ dbus_message_set_no_reply (message, TRUE);
+
+ dbus_connection_send (connection, message, NULL);
+
+ dbus_message_unref (message);
+
+ dbus_connection_flush (connection);
+
+ return TRUE;
+}
+
+static gboolean
+send_dbus_string_and_string_method (DBusConnection *connection,
+ const char *method,
+ const char *payload1,
+ const char *payload2)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ const char *str;
+
+ g_debug ("GdmGreeterClient: Calling %s", method);
+ message = dbus_message_new_method_call (NULL,
+ GREETER_SERVER_DBUS_PATH,
+ GREETER_SERVER_DBUS_INTERFACE,
+ method);
+ if (message == NULL) {
+ g_warning ("Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_message_iter_init_append (message, &iter);
+
+ if (payload1 != NULL) {
+ str = payload1;
+ } else {
+ str = "";
+ }
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_STRING,
+ &str);
+
+ if (payload2 != NULL) {
+ str = payload2;
+ } else {
+ str = "";
+ }
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_STRING,
+ &str);
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1,
+ &error);
+
+ dbus_message_unref (message);
+
+ if (dbus_error_is_set (&error)) {
+ g_warning ("%s %s raised: %s\n",
+ method,
+ error.name,
+ error.message);
+ return FALSE;
+ }
+ if (reply != NULL) {
+ dbus_message_unref (reply);
+ }
+ dbus_connection_flush (connection);
+
+ return TRUE;
+}
+
+static gboolean
+send_dbus_void_method (DBusConnection *connection,
+ const char *method)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+
+ g_debug ("GdmGreeterClient: Calling %s", method);
+ message = dbus_message_new_method_call (NULL,
+ GREETER_SERVER_DBUS_PATH,
+ GREETER_SERVER_DBUS_INTERFACE,
+ method);
+ if (message == NULL) {
+ g_warning ("Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1,
+ &error);
+
+ dbus_message_unref (message);
+
+ if (dbus_error_is_set (&error)) {
+ g_warning ("%s %s raised: %s\n",
+ method,
+ error.name,
+ error.message);
+ return FALSE;
+ }
+ if (reply != NULL) {
+ dbus_message_unref (reply);
+ }
+ dbus_connection_flush (connection);
+
+ return TRUE;
+}
+
+/**
+ * gdm_greeter_call_start_conversation:
+ *
+ * @client: a #GdmGreeterClient
+ * @service_name: PAM service name
+ *
+ * Tells GDM to prepare to start a PAM conversation with
+ * the specified PAM service.
+ *
+ * Normally, this would get called when the greeter first
+ * starts up, either one call to the "gdm" service or one
+ * for each auth method (say "gdm-password", "gdm-fingerprint",
+ * "gdm-smartcard")
+ *
+ * After the conversation has been started, the ready signal
+ * will be emitted.
+ */
+void
+gdm_greeter_client_call_start_conversation (GdmGreeterClient *client,
+ const char *service_name)
+{
+ send_dbus_string_method (client->priv->connection,
+ "StartConversation", service_name);
+}
+
+/**
+ * gdm_greeter_call_begin_auto_login:
+ *
+ * @client: a #GdmGreeterClient
+ * @username: user to auto login or %NULL to use the configured default
+ *
+ * Tells GDM to log the user in without first authenticating.
+ *
+ * Normally, this would get called after a timed-login-requested
+ * signal once the time out has been reached.
+ */
+void
+gdm_greeter_client_call_begin_auto_login (GdmGreeterClient *client,
+ const char *username)
+{
+ if (username == NULL) {
+ username = "__auto";
+ }
+
+ send_dbus_string_method (client->priv->connection,
+ "BeginAutoLogin", username);
+}
+
+/**
+ * gdm_greeter_call_begin_verification:
+ *
+ * @client: a #GdmGreeterClient
+ * @service_name: PAM service name
+ *
+ * Tells GDM to start the PAM authentication process with no specified
+ * user name.
+ *
+ * This should only be called after the ready signal is emitted for
+ * @service_name.
+ *
+ * Normally, this would get called if the greeter has no user list, or
+ * if the user clicks "Other" or "Not Listed?" in the user list.
+ */
+void
+gdm_greeter_client_call_begin_verification (GdmGreeterClient *client,
+ const char *service_name)
+{
+ send_dbus_string_method (client->priv->connection,
+ "BeginVerification", service_name);
+}
+
+/**
+ * gdm_greeter_call_begin_verification_for_user:
+ *
+ * @client: a #GdmGreeterClient
+ * @service_name: PAM service name
+ * @username: user to start verification process for
+ *
+ * Tells GDM to start the PAM authentication process with the @username
+ * user name.
+ *
+ * This should only be called after the ready signal is emitted for
+ * @service_name.
+ *
+ * Normally, this would get called in reponse to a user getting selected
+ * from the user list. If the greeter doesn't have a user list, it's
+ * better to call gdm_greeter_client_call_begin_verification() and let
+ * the PAM service handle asking for a username, than using this function.
+ */
+void
+gdm_greeter_client_call_begin_verification_for_user (GdmGreeterClient *client,
+ const char *service_name,
+ const char *username)
+{
+ send_dbus_string_and_string_method (client->priv->connection,
+ "BeginVerificationForUser",
+ service_name,
+ username);
+}
+
+/**
+ * gdm_greeter_call_answer_query:
+ *
+ * @client: a #GdmGreeterClient
+ * @service_name: PAM service name
+ * @answer: The answer to the currently pending PAM question.
+ *
+ * Responds to GDM's pending request for information.
+ *
+ * This should only be called after the info-query or secret-info-query signal is
+ * emitted for * @service_name.
+ *
+ * Normally, this would get called after the user types in an answer.
+ */
+void
+gdm_greeter_client_call_answer_query (GdmGreeterClient *client,
+ const char *service_name,
+ const char *answer)
+{
+ send_dbus_string_and_string_method (client->priv->connection,
+ "AnswerQuery",
+ service_name,
+ answer);
+}
+
+/**
+ * gdm_greeter_call_start_session_when_ready:
+ *
+ * @client: a #GdmGreeterClient
+ * @service_name: PAM service name
+ * @should_start_session: whether to block the login process
+ *
+ * After the user has successfully interacted with PAM, GDM waits
+ * for a final go ahead before finishing the login process and starting the
+ * users session.
+ *
+ * This call gives that go ahead.
+ *
+ * Normally, you would call this after the user has had a chance to interact
+ * with any important, non-login related information on the login screen
+ * (like a session selector).
+ */
+void
+gdm_greeter_client_call_start_session_when_ready (GdmGreeterClient *client,
+ const char *service_name,
+ gboolean should_start_session)
+{
+ send_dbus_string_and_bool_method (client->priv->connection,
+ "StartSessionWhenReady",
+ service_name,
+ should_start_session);
+}
+
+/**
+ * gdm_greeter_call_select_session:
+ *
+ * @client: a #GdmGreeterClient
+ * @session: session from /usr/share/xsessions to start
+ *
+ * Select a session for the user to login with.
+ *
+ * Normally, you would call this if the user selects a specific session in
+ * a list on screen somewhere.
+ */
+void
+gdm_greeter_client_call_select_session (GdmGreeterClient *client,
+ const char *session)
+{
+ send_dbus_string_method (client->priv->connection,
+ "SelectSession",
+ session);
+}
+
+/**
+ * gdm_greeter_call_select_user:
+ *
+ * @client: a #GdmGreeterClient
+ * @user: a user name
+ *
+ * Select a user to login with.
+ *
+ * Normally, you would call this if the user selects a specific session in
+ * a list on screen somewhere.
+ */
+void
+gdm_greeter_client_call_select_user (GdmGreeterClient *client,
+ const char *user)
+{
+ send_dbus_string_method (client->priv->connection,
+ "SelectUser",
+ user);
+}
+
+/**
+ * gdm_greeter_call_select_hostname:
+ *
+ * @client: a #GdmGreeterClient
+ * @hostname: a hostname
+ *
+ * Select a user to login with.
+ *
+ * Normally, you would call this from a chooser to select a specific host.
+ */
+void
+gdm_greeter_client_call_select_hostname (GdmGreeterClient *client,
+ const char *hostname)
+{
+ send_dbus_string_method (client->priv->connection,
+ "SelectHostname",
+ hostname);
+}
+
+/**
+ * gdm_greeter_call_canel:
+ *
+ * @client: a #GdmGreeterClient
+ *
+ * Cancel all pending PAM conversations.
+ *
+ * Normally you would call this if the user hits a Cancel button when
+ * asked a question they don't want to answer.
+ */
+void
+gdm_greeter_client_call_cancel (GdmGreeterClient *client)
+{
+ send_dbus_void_method (client->priv->connection,
+ "Cancel");
+}
+
+/**
+ * gdm_greeter_call_disconnect:
+ *
+ * @client: a #GdmGreeterClient
+ *
+ * Disconnect from gdm slave.
+ *
+ * You shouldn't call this unless the connection
+ * is remote.
+ */
+void
+gdm_greeter_client_call_disconnect (GdmGreeterClient *client)
+{
+ g_return_if_fail (gdm_greeter_client_get_display_is_local (client) == FALSE);
+
+ send_dbus_void_method (client->priv->connection,
+ "Disconnect");
+}
+
+static gboolean
+send_get_display_id (GdmGreeterClient *client,
+ const char *method,
+ char **answerp)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ gboolean ret;
+ const char *answer;
+
+ ret = FALSE;
+
+ g_debug ("GdmGreeterClient: Calling %s", method);
+ message = dbus_message_new_method_call (NULL,
+ GREETER_SERVER_DBUS_PATH,
+ GREETER_SERVER_DBUS_INTERFACE,
+ method);
+ if (message == NULL) {
+ g_warning ("Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (client->priv->connection,
+ message,
+ -1,
+ &error);
+ dbus_message_unref (message);
+
+ if (dbus_error_is_set (&error)) {
+ g_warning ("%s %s raised: %s\n",
+ method,
+ error.name,
+ error.message);
+ goto out;
+ }
+
+ dbus_message_iter_init (reply, &iter);
+ dbus_message_iter_get_basic (&iter, &answer);
+ if (answerp != NULL) {
+ *answerp = g_strdup (answer);
+ }
+ ret = TRUE;
+
+ dbus_message_unref (reply);
+ dbus_connection_flush (client->priv->connection);
+
+ out:
+
+ return ret;
+}
+
+
+static char *
+gdm_greeter_client_call_get_display_id (GdmGreeterClient *client)
+{
+ char *display_id;
+
+ display_id = NULL;
+ send_get_display_id (client,
+ "GetDisplayId",
+ &display_id);
+
+ return display_id;
+}
+
+static void
+cache_display_values (GdmGreeterClient *client)
+{
+ DBusGProxy *display_proxy;
+ DBusGConnection *connection;
+ GError *error;
+ gboolean res;
+
+ g_free (client->priv->display_id);
+ client->priv->display_id = gdm_greeter_client_call_get_display_id (client);
+ if (client->priv->display_id == NULL) {
+ return;
+ }
+
+ error = NULL;
+ connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
+ if (connection == NULL) {
+ if (error != NULL) {
+ g_critical ("error getting system bus: %s", error->message);
+ g_error_free (error);
+ }
+ return;
+ }
+
+ g_debug ("GdmGreeterClient: Creating proxy for %s", client->priv->display_id);
+ display_proxy = dbus_g_proxy_new_for_name (connection,
+ GDM_DBUS_NAME,
+ client->priv->display_id,
+ GDM_DBUS_DISPLAY_INTERFACE);
+ /* cache some values up front */
+ error = NULL;
+ res = dbus_g_proxy_call (display_proxy,
+ "IsLocal",
+ &error,
+ G_TYPE_INVALID,
+ G_TYPE_BOOLEAN, &client->priv->display_is_local,
+ G_TYPE_INVALID);
+ if (! res) {
+ if (error != NULL) {
+ g_warning ("Failed to get value: %s", error->message);
+ g_error_free (error);
+ } else {
+ g_warning ("Failed to get value");
+ }
+ }
+}
+
+static DBusHandlerResult
+client_dbus_handle_message (DBusConnection *connection,
+ DBusMessage *message,
+ void *user_data,
+ dbus_bool_t local_interface)
+{
+ GdmGreeterClient *client = GDM_GREETER_CLIENT (user_data);
+
+ g_return_val_if_fail (connection != NULL, DBUS_HANDLER_RESULT_NOT_YET_HANDLED);
+ g_return_val_if_fail (message != NULL, DBUS_HANDLER_RESULT_NOT_YET_HANDLED);
+
+ if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "InfoQuery")) {
+ on_info_query (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "SecretInfoQuery")) {
+ on_secret_info_query (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "Info")) {
+ on_info (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "Problem")) {
+ on_problem (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "ServiceUnavailable")) {
+ on_service_unavailable (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "Ready")) {
+ on_ready (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "ConversationStopped")) {
+ on_conversation_stopped (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "Reset")) {
+ on_reset (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "AuthenticationFailed")) {
+ on_authentication_failed (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "SelectedUserChanged")) {
+ on_selected_user_changed (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "DefaultSessionNameChanged")) {
+ on_default_session_changed (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "TimedLoginRequested")) {
+ on_timed_login_requested (client, message);
+ } else if (dbus_message_is_signal (message, GREETER_SERVER_DBUS_INTERFACE, "SessionOpened")) {
+ on_session_opened (client, message);
+ } else {
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static DBusHandlerResult
+client_dbus_filter_function (DBusConnection *connection,
+ DBusMessage *message,
+ void *user_data)
+{
+ GdmGreeterClient *client = GDM_GREETER_CLIENT (user_data);
+ const char *path;
+
+ path = dbus_message_get_path (message);
+
+ g_debug ("GdmGreeterClient: obj_path=%s interface=%s method=%s",
+ dbus_message_get_path (message),
+ dbus_message_get_interface (message),
+ dbus_message_get_member (message));
+
+ if (dbus_message_is_signal (message, DBUS_INTERFACE_LOCAL, "Disconnected")
+ && strcmp (path, DBUS_PATH_LOCAL) == 0) {
+
+ g_message ("Got disconnected from the session message bus");
+
+ dbus_connection_unref (connection);
+ client->priv->connection = NULL;
+
+ } else if (dbus_message_is_signal (message,
+ DBUS_INTERFACE_DBUS,
+ "NameOwnerChanged")) {
+ g_debug ("GdmGreeterClient: Name owner changed?");
+ } else {
+ return client_dbus_handle_message (connection, message, user_data, FALSE);
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+/**
+ * gdm_greeter_client_open_connection:
+ *
+ * @client: a #GdmGreeterClient
+ *
+ * Initiates a connection to GDM daemon "slave" process.
+ *
+ * This function should be called before doing other calls.
+ *
+ * Returns: %TRUE if connected, or %FALSE if unavailable
+ */
+gboolean
+gdm_greeter_client_open_connection (GdmGreeterClient *client,
+ GError **error)
+{
+ DBusError local_error;
+
+ g_return_val_if_fail (GDM_IS_GREETER_CLIENT (client), FALSE);
+ g_return_val_if_fail (!client->priv->is_connected, TRUE);
+
+ if (client->priv->address == NULL) {
+ g_warning ("GDM_GREETER_DBUS_ADDRESS not set");
+ g_set_error (error,
+ GDM_GREETER_CLIENT_ERROR,
+ GDM_GREETER_CLIENT_ERROR_GENERIC,
+ "GDM_GREETER_DBUS_ADDRESS not set");
+ goto out;
+ }
+
+ g_debug ("GdmGreeterClient: connecting to address: %s", client->priv->address);
+
+ dbus_error_init (&local_error);
+ client->priv->connection = dbus_connection_open (client->priv->address, &local_error);
+ if (client->priv->connection == NULL) {
+ if (dbus_error_is_set (&local_error)) {
+ g_warning ("error opening connection: %s", local_error.message);
+ g_set_error (error,
+ GDM_GREETER_CLIENT_ERROR,
+ GDM_GREETER_CLIENT_ERROR_GENERIC,
+ "%s", local_error.message);
+ dbus_error_free (&local_error);
+ } else {
+ g_warning ("Unable to open connection");
+ }
+ goto out;
+ }
+
+ dbus_connection_setup_with_g_main (client->priv->connection, NULL);
+ dbus_connection_set_exit_on_disconnect (client->priv->connection, TRUE);
+
+ dbus_connection_add_filter (client->priv->connection,
+ client_dbus_filter_function,
+ client,
+ NULL);
+
+ cache_display_values (client);
+
+
+ client->priv->is_connected = TRUE;
+
+ out:
+ return client->priv->is_connected;
+}
+
+static void
+gdm_greeter_client_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+gdm_greeter_client_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GdmGreeterClient *self;
+
+ self = GDM_GREETER_CLIENT (object);
+
+ switch (prop_id) {
+ case PROP_DISPLAY_IS_LOCAL:
+ g_value_set_boolean (value, self->priv->display_is_local);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gdm_greeter_client_class_init (GdmGreeterClientClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->get_property = gdm_greeter_client_get_property;
+ object_class->set_property = gdm_greeter_client_set_property;
+ object_class->finalize = gdm_greeter_client_finalize;
+
+ g_type_class_add_private (klass, sizeof (GdmGreeterClientPrivate));
+
+ gdm_greeter_client_signals[INFO_QUERY] =
+ g_signal_new ("info-query",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, info_query),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 2,
+ G_TYPE_STRING, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[SECRET_INFO_QUERY] =
+ g_signal_new ("secret-info-query",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, secret_info_query),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 2,
+ G_TYPE_STRING, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[INFO] =
+ g_signal_new ("info",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, info),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 2,
+ G_TYPE_STRING, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[PROBLEM] =
+ g_signal_new ("problem",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, problem),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 2,
+ G_TYPE_STRING, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[SERVICE_UNAVAILABLE] =
+ g_signal_new ("service-unavailable",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, service_unavailable),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE, 1, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[READY] =
+ g_signal_new ("ready",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, ready),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 1, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[CONVERSATION_STOPPED] =
+ g_signal_new ("conversation-stopped",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, conversation_stopped),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 1, G_TYPE_STRING);
+
+ gdm_greeter_client_signals[RESET] =
+ g_signal_new ("reset",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, reset),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 0);
+ gdm_greeter_client_signals[AUTHENTICATION_FAILED] =
+ g_signal_new ("authentication-failed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, authentication_failed),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 0);
+ gdm_greeter_client_signals[SELECTED_USER_CHANGED] =
+ g_signal_new ("selected-user-changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, selected_user_changed),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 1, G_TYPE_STRING);
+ gdm_greeter_client_signals[DEFAULT_SESSION_CHANGED] =
+ g_signal_new ("default-session-changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, default_session_changed),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 1, G_TYPE_STRING);
+ gdm_greeter_client_signals[TIMED_LOGIN_REQUESTED] =
+ g_signal_new ("timed-login-requested",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, timed_login_requested),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 2, G_TYPE_STRING, G_TYPE_INT);
+
+ gdm_greeter_client_signals[SESSION_OPENED] =
+ g_signal_new ("session-opened",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GdmGreeterClientClass, session_opened),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 1, G_TYPE_STRING);
+
+ g_object_class_install_property (object_class,
+ PROP_DISPLAY_IS_LOCAL,
+ g_param_spec_boolean ("display-is-local",
+ "display is local",
+ "display is local",
+ FALSE,
+ G_PARAM_READABLE));
+}
+
+static void
+gdm_greeter_client_init (GdmGreeterClient *client)
+{
+
+ client->priv = GDM_GREETER_CLIENT_GET_PRIVATE (client);
+
+ client->priv->address = g_strdup (g_getenv ("GDM_GREETER_DBUS_ADDRESS"));
+}
+
+static void
+gdm_greeter_client_finalize (GObject *object)
+{
+ GdmGreeterClient *client;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (GDM_IS_GREETER_CLIENT (object));
+
+ client = GDM_GREETER_CLIENT (object);
+
+ g_return_if_fail (client->priv != NULL);
+
+ g_free (client->priv->address);
+
+ G_OBJECT_CLASS (gdm_greeter_client_parent_class)->finalize (object);
+}
+
+GdmGreeterClient *
+gdm_greeter_client_new (void)
+{
+ if (client_object != NULL) {
+ g_object_ref (client_object);
+ } else {
+ client_object = g_object_new (GDM_TYPE_GREETER_CLIENT, NULL);
+ g_object_add_weak_pointer (client_object,
+ (gpointer *) &client_object);
+ }
+
+ return GDM_GREETER_CLIENT (client_object);
+}
diff --git a/gui/libgdmgreeter/gdm-greeter-client.h b/gui/libgdmgreeter/gdm-greeter-client.h
new file mode 100644
index 0000000..7fa3aaa
--- /dev/null
+++ b/gui/libgdmgreeter/gdm-greeter-client.h
@@ -0,0 +1,126 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <mccann jhu edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifndef __GDM_GREETER_CLIENT_H
+#define __GDM_GREETER_CLIENT_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define GDM_TYPE_GREETER_CLIENT (gdm_greeter_client_get_type ())
+#define GDM_GREETER_CLIENT(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GDM_TYPE_GREETER_CLIENT, GdmGreeterClient))
+#define GDM_GREETER_CLIENT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GDM_TYPE_GREETER_CLIENT, GdmGreeterClientClass))
+#define GDM_IS_GREETER_CLIENT(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDM_TYPE_GREETER_CLIENT))
+#define GDM_IS_GREETER_CLIENT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GDM_TYPE_GREETER_CLIENT))
+#define GDM_GREETER_CLIENT_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDM_TYPE_GREETER_CLIENT, GdmGreeterClientClass))
+
+typedef struct GdmGreeterClientPrivate GdmGreeterClientPrivate;
+
+typedef struct
+{
+ GObject parent;
+ GdmGreeterClientPrivate *priv;
+} GdmGreeterClient;
+
+typedef struct
+{
+ GObjectClass parent_class;
+
+ void (* info_query) (GdmGreeterClient *client,
+ const char *service_name,
+ const char *query_text);
+
+ void (* secret_info_query) (GdmGreeterClient *client,
+ const char *service_name,
+ const char *query_text);
+
+ void (* info) (GdmGreeterClient *client,
+ const char *service_name,
+ const char *info);
+
+ void (* problem) (GdmGreeterClient *client,
+ const char *service_name,
+ const char *problem);
+ void (* service_unavailable) (GdmGreeterClient *client,
+ const char *service_name);
+ void (* ready) (GdmGreeterClient *client,
+ const char *service_name);
+ void (* conversation_stopped) (GdmGreeterClient *client,
+ const char *service_name);
+ void (* reset) (GdmGreeterClient *client);
+ void (* authentication_failed) (GdmGreeterClient *client);
+ void (* selected_user_changed) (GdmGreeterClient *client,
+ const char *username);
+ void (* default_session_changed) (GdmGreeterClient *client,
+ const char *session_id);
+ void (* timed_login_requested) (GdmGreeterClient *client,
+ const char *username,
+ int delay);
+ void (* session_opened) (GdmGreeterClient *client,
+ const char *service_name);
+} GdmGreeterClientClass;
+
+#define GDM_GREETER_CLIENT_ERROR (gdm_greeter_client_error_quark ())
+
+typedef enum _GdmGreeterClientError {
+ GDM_GREETER_CLIENT_ERROR_GENERIC = 0,
+} GdmGreeterClientError;
+
+GType gdm_greeter_client_get_type (void);
+GQuark gdm_greeter_client_error_quark (void);
+
+GdmGreeterClient * gdm_greeter_client_new (void);
+
+gboolean gdm_greeter_client_open_connection (GdmGreeterClient *client,
+ GError **error);
+gboolean gdm_greeter_client_get_display_is_local (GdmGreeterClient *client);
+
+void gdm_greeter_client_call_start_conversation (GdmGreeterClient *client,
+ const char *service_name);
+void gdm_greeter_client_call_begin_auto_login (GdmGreeterClient *client,
+ const char *username);
+void gdm_greeter_client_call_begin_verification (GdmGreeterClient *client,
+ const char *service_name);
+void gdm_greeter_client_call_begin_verification_for_user (GdmGreeterClient *client,
+ const char *service_name,
+ const char *username);
+void gdm_greeter_client_call_cancel (GdmGreeterClient *client);
+void gdm_greeter_client_call_disconnect (GdmGreeterClient *client);
+void gdm_greeter_client_call_select_hostname (GdmGreeterClient *client,
+ const char *text);
+void gdm_greeter_client_call_select_user (GdmGreeterClient *client,
+ const char *text);
+void gdm_greeter_client_call_select_language (GdmGreeterClient *client,
+ const char *text);
+void gdm_greeter_client_call_select_session (GdmGreeterClient *client,
+ const char *text);
+void gdm_greeter_client_call_answer_query (GdmGreeterClient *client,
+ const char *service_name,
+ const char *text);
+
+void gdm_greeter_client_call_start_session_when_ready (GdmGreeterClient *client,
+ const char *service_name,
+ gboolean should_start_session);
+
+
+G_END_DECLS
+
+#endif /* __GDM_GREETER_CLIENT_H */
diff --git a/gui/libgdmgreeter/gdm-greeter-sessions.c b/gui/libgdmgreeter/gdm-greeter-sessions.c
new file mode 100644
index 0000000..fe34293
--- /dev/null
+++ b/gui/libgdmgreeter/gdm-greeter-sessions.c
@@ -0,0 +1,280 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright 2008 Red Hat, Inc,
+ * 2007 William Jon McCann <mccann jhu edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Written by : William Jon McCann <mccann jhu edu>
+ * Ray Strode <rstrode redhat com>
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib/gstdio.h>
+
+#include "gdm-greeter-sessions.h"
+
+typedef struct _GdmSessionFile {
+ char *id;
+ char *path;
+ char *translated_name;
+ char *translated_comment;
+} GdmSessionFile;
+
+static GHashTable *gdm_available_sessions_map;
+
+static gboolean gdm_sessions_map_is_initialized = FALSE;
+
+/* adapted from gnome-menus desktop-entries.c */
+static gboolean
+key_file_is_relevant (GKeyFile *key_file)
+{
+ GError *error;
+ gboolean no_display;
+ gboolean hidden;
+ gboolean tryexec_failed;
+ char *tryexec;
+
+ error = NULL;
+ no_display = g_key_file_get_boolean (key_file,
+ G_KEY_FILE_DESKTOP_GROUP,
+ "NoDisplay",
+ &error);
+ if (error) {
+ no_display = FALSE;
+ g_error_free (error);
+ }
+
+ error = NULL;
+ hidden = g_key_file_get_boolean (key_file,
+ G_KEY_FILE_DESKTOP_GROUP,
+ "Hidden",
+ &error);
+ if (error) {
+ hidden = FALSE;
+ g_error_free (error);
+ }
+
+ tryexec_failed = FALSE;
+ tryexec = g_key_file_get_string (key_file,
+ G_KEY_FILE_DESKTOP_GROUP,
+ "TryExec",
+ NULL);
+ if (tryexec) {
+ char *path;
+
+ path = g_find_program_in_path (g_strstrip (tryexec));
+
+ tryexec_failed = (path == NULL);
+
+ g_free (path);
+ g_free (tryexec);
+ }
+
+ if (no_display || hidden || tryexec_failed) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void
+load_session_file (const char *id,
+ const char *path)
+{
+ GKeyFile *key_file;
+ GError *error;
+ gboolean res;
+ GdmSessionFile *session;
+
+ key_file = g_key_file_new ();
+
+ error = NULL;
+ res = g_key_file_load_from_file (key_file, path, 0, &error);
+
+ if (!res) {
+ g_debug ("Failed to load \"%s\": %s\n", path, error->message);
+ g_error_free (error);
+ goto out;
+ }
+
+ if (! g_key_file_has_group (key_file, G_KEY_FILE_DESKTOP_GROUP)) {
+ goto out;
+ }
+
+ res = g_key_file_has_key (key_file, G_KEY_FILE_DESKTOP_GROUP, "Name", NULL);
+ if (! res) {
+ g_debug ("\"%s\" contains no \"Name\" key\n", path);
+ goto out;
+ }
+
+ if (!key_file_is_relevant (key_file)) {
+ g_debug ("\"%s\" is hidden or contains non-executable TryExec program\n", path);
+ goto out;
+ }
+
+ session = g_new0 (GdmSessionFile, 1);
+
+ session->id = g_strdup (id);
+ session->path = g_strdup (path);
+
+ session->translated_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, "Name", NULL, NULL);
+ session->translated_comment = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, "Comment", NULL, NULL);
+
+ g_hash_table_insert (gdm_available_sessions_map,
+ g_strdup (id),
+ session);
+ out:
+ g_key_file_free (key_file);
+}
+
+static void
+collect_sessions_from_directory (const char *dirname)
+{
+ GDir *dir;
+ const char *filename;
+
+ /* FIXME: add file monitor to directory */
+
+ dir = g_dir_open (dirname, 0, NULL);
+ if (dir == NULL) {
+ return;
+ }
+
+ while ((filename = g_dir_read_name (dir))) {
+ char *id;
+ char *full_path;
+
+ if (! g_str_has_suffix (filename, ".desktop")) {
+ continue;
+ }
+ id = g_strndup (filename, strlen (filename) - strlen (".desktop"));
+
+ full_path = g_build_filename (dirname, filename, NULL);
+
+ load_session_file (id, full_path);
+
+ g_free (id);
+ g_free (full_path);
+ }
+
+ g_dir_close (dir);
+}
+
+static void
+collect_sessions (void)
+{
+ int i;
+ const char *search_dirs[] = {
+ "/etc/X11/sessions/",
+ DMCONFDIR "/Sessions/",
+ DATADIR "/gdm/BuiltInSessions/",
+ DATADIR "/xsessions/",
+ NULL
+ };
+
+ if (gdm_available_sessions_map == NULL) {
+ gdm_available_sessions_map = g_hash_table_new_full (g_str_hash, g_str_equal,
+ g_free, g_free);
+ }
+
+ for (i = 0; search_dirs [i] != NULL; i++) {
+ collect_sessions_from_directory (search_dirs [i]);
+ }
+}
+
+/**
+ * gdm_greeter_get_session_ids:
+ *
+ * Reads /usr/share/xsessions and other relevant places for possible sessions
+ * to log into and returns the complete list.
+ *
+ * Returns: (transfer full): a %NULL terminated list of session ids
+ */
+char **
+gdm_greeter_get_session_ids (void)
+{
+ GHashTableIter iter;
+ gpointer key, value;
+ GPtrArray *array;
+
+ if (!gdm_sessions_map_is_initialized) {
+ collect_sessions ();
+
+ gdm_sessions_map_is_initialized = TRUE;
+ }
+
+ array = g_ptr_array_new ();
+ g_hash_table_iter_init (&iter, gdm_available_sessions_map);
+ while (g_hash_table_iter_next (&iter, &key, &value)) {
+ GdmSessionFile *session;
+
+ session = (GdmSessionFile *) value;
+
+ g_ptr_array_add (array, g_strdup (session->id));
+ }
+ g_ptr_array_add (array, NULL);
+
+ return (char **) g_ptr_array_free (array, FALSE);
+}
+
+/**
+ * gdm_greeter_get_session_name_and_description:
+ * @id: an id from gdm_greeter_get_session_ids()
+ * @description: (out): optional returned session description
+ *
+ * Takes an xsession id and returns the name and comment about it.
+ *
+ * Returns: The session name if found, or %NULL otherwise
+ */
+char *
+gdm_greeter_get_session_name_and_description (const char *id,
+ char **description)
+{
+ GdmSessionFile *session;
+ char *name;
+
+ if (!gdm_sessions_map_is_initialized) {
+ collect_sessions ();
+
+ gdm_sessions_map_is_initialized = TRUE;
+ }
+
+ session = (GdmSessionFile *) g_hash_table_lookup (gdm_available_sessions_map,
+ id);
+
+ if (session == NULL) {
+ return NULL;
+ }
+
+ name = g_strdup (session->translated_name);
+
+ if (description != NULL) {
+ *description = g_strdup (session->translated_comment);
+ }
+
+ return name;
+}
diff --git a/gui/libgdmgreeter/gdm-greeter-sessions.h b/gui/libgdmgreeter/gdm-greeter-sessions.h
new file mode 100644
index 0000000..ab78a98
--- /dev/null
+++ b/gui/libgdmgreeter/gdm-greeter-sessions.h
@@ -0,0 +1,37 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright 2008 Red Hat, Inc.
+ * Copyright 2007 William Jon McCann <mccann jhu edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Written by: Ray Strode
+ * William Jon McCann
+ */
+
+#ifndef __GDM_GREETER_SESSIONS_H
+#define __GDM_GREETER_SESSIONS_H
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+char ** gdm_greeter_get_session_ids (void);
+char * gdm_greeter_get_session_name_and_description (const char *id,
+ char **description);
+
+G_END_DECLS
+
+#endif /* __GDM_SESSION_H */
diff --git a/gui/libgdmgreeter/gdmgreeter.pc.in b/gui/libgdmgreeter/gdmgreeter.pc.in
new file mode 100644
index 0000000..b1c6802
--- /dev/null
+++ b/gui/libgdmgreeter/gdmgreeter.pc.in
@@ -0,0 +1,10 @@
+prefix= prefix@
+exec_prefix= exec_prefix@
+libdir= libdir@
+includedir= includedir@
+
+Name: GDM Greeter Library
+Description: Client Library for communicating with GDM greeter server
+Version: @VERSION@
+Libs: -L${libdir} -lgdmgreeter
+Cflags: -I${includedir}/gdm/greeter
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