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/*
* LTSP Graphical GTK Greeter
* Copyright (2007) Oliver Grawert <ogra@ubuntu.com>, Canonical Ltd.
* Code Licensed under GPL v2
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include <glib.h>
#include <string.h>
#include <sys/utsname.h>
#include <sys/socket.h>
#include <net/if.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <greeter.h>
#include <config.h>
#include <libintl.h>
#include <locale.h>
#define _(text) gettext(text)
GtkWidget *UserPrompt; /* prompt area before the entry */
GtkWidget *StatusMessages; /* Status msg area below entry */
GtkWidget *entry; /* entry box */
GtkWidget *guestbox;
GHashTable *ldminfo_hash = NULL;
GList *host_list = NULL;
GIOChannel *g_stdout; /* stdout io channel */
char ldm_theme_dir[512];
int allowguest;
char *
ldm_theme_file(char * file)
{
static char path[512];
strcpy(path, ldm_theme_dir);
strcat(path, file);
return path;
}
static void
destroy(GtkWidget * widget, gpointer data)
{
gtk_main_quit();
}
static void
halt(GtkWidget * widget, gpointer data)
{
GError **error = NULL;
g_spawn_command_line_async("/sbin/poweroff -fp", error);
}
static void
reboot(GtkWidget * widget, gpointer data)
{
GError **error = NULL;
g_spawn_command_line_async("/sbin/reboot -fp", error);
}
gboolean
update_time(GtkWidget * label)
{
gchar *timestring = 0;
time_t timet;
struct tm *timePtr;
timet = time(NULL);
timePtr = localtime(&timet);
// use 12 hour clock format if LDM_12HOURCLOCK is set to true
if (ldm_getenv_bool("LDM_12HOURCLOCK")) {
timestring = g_strdup_printf("%.2d:%.2d ",
(timePtr->tm_hour % 12) ? (timePtr->tm_hour % 12) : 12,
timePtr->tm_min);
}
else {
timestring = g_strdup_printf("%.2d:%.2d ",
timePtr->tm_hour, timePtr->tm_min);
}
gtk_label_set_markup((GtkLabel *) label, timestring);
g_free(timestring);
return TRUE;
}
void
destroy_popup(GtkWidget * widget, GtkWidget * popup)
{
gtk_widget_destroy(popup);
return;
}
gboolean
handle_command(GIOChannel * io_input)
{
GString *buf;
buf = g_string_new("");
g_io_channel_read_line_string(io_input, buf, NULL, NULL);
if (!g_strncasecmp(buf->str, "msg", 3)) {
gchar **split_buf;
split_buf = g_strsplit(buf->str, " ", 2);
gtk_label_set_markup((GtkLabel *) StatusMessages, split_buf[1]);
g_strfreev(split_buf);
gtk_entry_set_editable(GTK_ENTRY(entry), FALSE);
} else if (!g_strncasecmp(buf->str, "quit", 4)) {
GdkCursor *cursor;
cursor = gdk_cursor_new(GDK_WATCH);
gdk_window_set_cursor(gdk_get_default_root_window(), cursor);
gtk_main_quit();
} else if (!g_strncasecmp(buf->str, "prompt", 6)) {
gchar **split_buf;
split_buf = g_strsplit(buf->str, " ", 2);
gtk_label_set_markup((GtkLabel *) UserPrompt, split_buf[1]);
g_strfreev(split_buf);
} else if (!g_strncasecmp(buf->str, "userid", 6)) {
gtk_widget_show(guestbox);
gtk_entry_set_visibility(GTK_ENTRY(entry), TRUE);
gtk_entry_set_editable(GTK_ENTRY(entry), TRUE);
} else if (!g_strncasecmp(buf->str, "passwd", 6)) {
gtk_widget_hide(guestbox);
gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
gtk_entry_set_editable(GTK_ENTRY(entry), TRUE);
} else if (!g_strncasecmp(buf->str, "hostname", 8)) {
gchar *hoststr;
update_selected_host();
hoststr = g_strdup_printf("%s\n", host);
g_io_channel_write_chars(g_stdout, hoststr, -1, NULL, NULL);
g_io_channel_flush(g_stdout, NULL);
g_free(hoststr);
} else if (!g_strncasecmp(buf->str, "language", 8)) {
gchar *langstr;
update_selected_lang();
langstr = g_strdup_printf("%s\n", language);
g_io_channel_write_chars(g_stdout, langstr, -1, NULL, NULL);
g_io_channel_flush(g_stdout, NULL);
g_free(langstr);
} else if (!g_strncasecmp(buf->str, "session", 7)) {
gchar *sessstr;
update_selected_sess();
sessstr = g_strdup_printf("%s\n", session);
g_io_channel_write_chars(g_stdout, sessstr, -1, NULL, NULL);
g_io_channel_flush(g_stdout, NULL);
g_free(sessstr);
}
g_string_free(buf, TRUE);
return TRUE;
}
char *
get_sysname(void)
{
struct utsname name;
char *node;
if (uname(&name) == 0) {
node = strdup(name.nodename);
return node;
}
return NULL;
}
static void
handle_guestbutton(GtkButton * entry, GdkWindow * window)
{
g_io_channel_write_chars(g_stdout, g_strdup_printf("@GUEST@\n"), -1, NULL, NULL);
g_io_channel_flush(g_stdout, NULL);
}
static void
handle_entry(GtkEntry * entry, GdkWindow * window)
{
gchar *entrystr;
if(gtk_entry_get_visibility(GTK_ENTRY(entry)))
g_io_channel_write_chars(g_stdout, g_strdup_printf("@NOTGUEST@\n"), -1, NULL, NULL);
entrystr = g_strdup_printf("%s\n", gtk_entry_get_text(entry));
g_io_channel_write_chars(g_stdout, entrystr, -1, NULL, NULL);
g_io_channel_flush(g_stdout, NULL);
g_free(entrystr);
gtk_entry_set_text(entry, "");
}
static void
popup_menu(GtkWidget * widget, GtkWindow * window)
{
GtkWidget *menu, *lang_item, *sess_item, *host_item, *quit_item,
*reboot_item;
GtkWidget *sep, *langico, *sessico, *hostico, *rebootico, *haltico;
menu = gtk_menu_new();
lang_item =
gtk_image_menu_item_new_with_mnemonic(_("Select _Language ..."));
langico = gtk_image_new_from_file(ldm_theme_file("/language.png"));
gtk_image_menu_item_set_image((GtkImageMenuItem *) lang_item, langico);
sess_item =
gtk_image_menu_item_new_with_mnemonic(_("Select _Session ..."));
sessico = gtk_image_new_from_file(ldm_theme_file("/session.png"));
gtk_image_menu_item_set_image((GtkImageMenuItem *) sess_item, sessico);
host_item =
gtk_image_menu_item_new_with_mnemonic(_("Select _Host ..."));
hostico = gtk_image_new_from_file(ldm_theme_file("/host.png"));
gtk_image_menu_item_set_image((GtkImageMenuItem *) host_item, hostico);
sep = gtk_separator_menu_item_new();
reboot_item = gtk_image_menu_item_new_with_mnemonic(_("_Reboot"));
rebootico = gtk_image_new_from_file(ldm_theme_file("/reboot.png"));
gtk_image_menu_item_set_image((GtkImageMenuItem *) reboot_item,
rebootico);
quit_item = gtk_image_menu_item_new_with_mnemonic(_("Shut_down"));
haltico = gtk_image_new_from_file(ldm_theme_file("/shutdown.png"));
gtk_image_menu_item_set_image((GtkImageMenuItem *) quit_item, haltico);
g_signal_connect_swapped(G_OBJECT(quit_item), "activate",
G_CALLBACK(halt), NULL);
g_signal_connect_swapped(G_OBJECT(reboot_item), "activate",
G_CALLBACK(reboot), NULL);
g_signal_connect_swapped(G_OBJECT(lang_item), "activate",
G_CALLBACK(langwin), window);
g_signal_connect_swapped(G_OBJECT(sess_item), "activate",
G_CALLBACK(sesswin), window);
g_signal_connect_swapped(G_OBJECT(host_item), "activate",
G_CALLBACK(hostwin), window);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), lang_item);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), sess_item);
if (g_hash_table_size(ldminfo_hash) > 1)
gtk_menu_shell_append(GTK_MENU_SHELL(menu), host_item);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), sep);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), reboot_item);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), quit_item);
gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL,
0, gtk_get_current_event_time());
gtk_widget_show_all(menu);
gtk_menu_reposition(GTK_MENU(menu));
return;
}
int
main(int argc, char *argv[])
{
int pw, ph, spheight, w, h;
const char *hoststring = 0;
gint lw, lh;
GdkCursor *normcursor, *busycursor;
GtkWidget *window, *syslabel, *logo, *EntryBox, *timelabel;
GtkWidget *GuestButton, *StatusBarBox, *spacer, *guestspacer1, *guestspacer2, *vbox, *vbox2, *hbox;
GtkButton *optionbutton, *cancelbutton;
GdkWindow *root;
GdkPixbuf *rawpic, *pix;
GdkPixmap *pic;
GdkBitmap *mask;
gint width, height;
GIOChannel *g_stdin;
char * ldm_theme;
#ifdef ENABLE_NLS
setlocale (LC_ALL, "");
bindtextdomain (GETTEXT_PACKAGE, LOCALE_DIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
#endif
gtk_init(&argc, &argv);
*ldm_theme_dir='\0';
ldm_theme = getenv("LDM_THEME");
if (ldm_theme)
{
char temp[512];
strcpy(temp, ldm_theme);
if(*temp != '/')
strcpy(ldm_theme_dir, LDM_THEME_DIR);
strcat(ldm_theme_dir, temp);
}
else
{
strcpy(ldm_theme_dir, LDM_THEME_DIR);
strcat(ldm_theme_dir, "default");
}
allowguest=ldm_getenv_bool("LDM_GUESTLOGIN");
gtk_rc_add_default_file(ldm_theme_file("/greeter-gtkrc"));
/* Initialize information about hosts */
ldminfo_init(&ldminfo_hash, &host_list, getenv("LDM_SERVER"));
normcursor = gdk_cursor_new(GDK_LEFT_PTR);
busycursor = gdk_cursor_new(GDK_WATCH);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy),
NULL);
root = gdk_get_default_root_window();
gdk_window_set_cursor(root, busycursor);
gdk_drawable_get_size(root, &width, &height);
pw = width;
ph = height;
w = width;
h = height;
logo = gtk_image_new_from_file(ldm_theme_file("/logo.png"));
pix = gtk_image_get_pixbuf((GtkImage *) logo);
lw = gdk_pixbuf_get_width(pix);
lh = gdk_pixbuf_get_height(pix);
spheight = (height / 4) - (lh / 2);
rawpic = gdk_pixbuf_new_from_file_at_scale(ldm_theme_file("/bg.png"),
pw, ph, FALSE, NULL);
gdk_pixbuf_render_pixmap_and_mask(rawpic, &pic, &mask, 0);
gdk_pixbuf_unref(rawpic);
gtk_widget_set_app_paintable(window, TRUE);
gtk_widget_set_size_request(window, w, h);
gtk_widget_realize(window);
gdk_window_set_back_pixmap((GdkWindow *) window->window, pic, 0);
gtk_window_set_decorated((GtkWindow *) window, FALSE);
vbox = gtk_vbox_new(FALSE, 5);
vbox2 = gtk_vbox_new(FALSE, 0);
EntryBox = gtk_hbox_new(FALSE, 5);
hbox = gtk_hbox_new(FALSE, 0);
StatusBarBox = gtk_hbox_new(FALSE, 0);
optionbutton =
(GtkButton *) gtk_button_new_from_stock("gtk-preferences");
gtk_button_set_relief(optionbutton, GTK_RELIEF_NONE);
gtk_button_set_focus_on_click((GtkButton *) optionbutton, FALSE);
g_signal_connect(G_OBJECT(optionbutton), "clicked",
G_CALLBACK(popup_menu), window);
/*
* Cancel button
*/
cancelbutton =
(GtkButton *) gtk_button_new_from_stock(GTK_STOCK_CANCEL);
gtk_button_set_relief(cancelbutton, GTK_RELIEF_NONE);
gtk_button_set_focus_on_click((GtkButton *) cancelbutton, FALSE);
g_signal_connect(G_OBJECT(cancelbutton), "clicked",
G_CALLBACK(destroy), window);
syslabel = gtk_label_new("");
timelabel = gtk_label_new("");
hoststring =
g_strdup_printf("<b>%s (%s) //</b>", get_sysname(), getenv("LDMINFO_IPADDR"));
gtk_label_set_markup((GtkLabel *) syslabel, hoststring);
update_time(timelabel);
g_timeout_add(30000, (GSourceFunc) update_time, timelabel);
gtk_box_pack_start(GTK_BOX(StatusBarBox),
GTK_WIDGET(optionbutton), FALSE, FALSE, 5);
/*gtk_box_pack_start(GTK_BOX(StatusBarBox),
GTK_WIDGET(cancelbutton), FALSE, FALSE, 5);*/
gtk_box_pack_end(GTK_BOX(StatusBarBox),
GTK_WIDGET(timelabel), FALSE, FALSE, 5);
gtk_box_pack_end(GTK_BOX(StatusBarBox),
GTK_WIDGET(syslabel), FALSE, FALSE, 0);
UserPrompt = gtk_label_new("");
spacer = gtk_label_new("");
if (lw < 180)
lw = 180;
gtk_misc_set_alignment((GtkMisc *) UserPrompt, 1, 0.5);
gtk_widget_set_size_request(UserPrompt, (lw / 2), 0);
StatusMessages = gtk_label_new("");
entry = gtk_entry_new();
gtk_entry_set_width_chars(GTK_ENTRY(entry), 12);
g_signal_connect(G_OBJECT(entry), "activate",
G_CALLBACK(handle_entry), root);
guestspacer1 = gtk_label_new("");
guestspacer2 = gtk_label_new("");
GuestButton = gtk_button_new_with_label (_("Login as Guest"));
g_signal_connect(G_OBJECT(GuestButton), "clicked",
G_CALLBACK(handle_guestbutton), root);
gtk_button_set_relief((GtkButton *)GuestButton, GTK_RELIEF_NONE);
gtk_button_set_focus_on_click((GtkButton *)GuestButton, FALSE);
guestbox = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(guestbox), guestspacer1, TRUE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(guestbox), GuestButton, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(guestbox), guestspacer2, TRUE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(EntryBox), UserPrompt, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(EntryBox), entry, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, spheight);
gtk_box_pack_start(GTK_BOX(vbox), logo, FALSE, FALSE, 5);
gtk_box_pack_start(GTK_BOX(vbox), EntryBox, TRUE, FALSE, 0);
if(allowguest) gtk_box_pack_start(GTK_BOX(vbox), guestbox, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox), StatusMessages, TRUE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox2), hbox, FALSE, FALSE, 0);
gtk_box_pack_end(GTK_BOX(vbox2), StatusBarBox, FALSE, FALSE, 5);
gtk_container_add(GTK_CONTAINER(window), vbox2);
gtk_widget_show_all(window);
gdk_window_set_cursor(root, normcursor);
/*
* Start listening to stdin
*/
g_stdin = g_io_channel_unix_new(STDIN_FILENO); /* listen to stdin */
g_stdout = g_io_channel_unix_new(STDOUT_FILENO);
g_io_add_watch(g_stdin, G_IO_IN, (GIOFunc) handle_command, g_stdin);
gtk_main();
return 0;
}
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