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+++ b/driver/lock.c
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+/* lock.c --- handling the password dialog for locking-mode.
+ * xscreensaver, Copyright (c) 1993-2018 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ */
+
+/* Athena locking code contributed by Jon A. Christopher <jac8782@tamu.edu> */
+/* Copyright 1997, with the same permissions as above. */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <ctype.h>
+#include <X11/Intrinsic.h>
+#include <X11/cursorfont.h>
+#include <X11/Xos.h> /* for time() */
+#include <time.h>
+#include <sys/time.h>
+#include "xscreensaver.h"
+#include "resources.h"
+#include "mlstring.h"
+#include "auth.h"
+
+#ifndef NO_LOCKING /* (mostly) whole file */
+
+#ifdef HAVE_XHPDISABLERESET
+# include <X11/XHPlib.h>
+ static void hp_lock_reset (saver_info *si, Bool lock_p);
+#endif /* HAVE_XHPDISABLERESET */
+
+#ifdef HAVE_XF86VMODE
+# include <X11/extensions/xf86vmode.h>
+ static void xfree_lock_mode_switch (saver_info *si, Bool lock_p);
+#endif /* HAVE_XF86VMODE */
+
+#ifdef HAVE_XF86MISCSETGRABKEYSSTATE
+# include <X11/extensions/xf86misc.h>
+ static void xfree_lock_grab_smasher (saver_info *si, Bool lock_p);
+#endif /* HAVE_XF86MISCSETGRABKEYSSTATE */
+
+#ifdef HAVE_RANDR
+# include <X11/extensions/Xrandr.h>
+#endif /* HAVE_RANDR */
+
+#ifdef _VROOT_H_
+ERROR! You must not include vroot.h in this file.
+#endif
+
+#ifdef HAVE_UNAME
+# include <sys/utsname.h> /* for hostname info */
+#endif /* HAVE_UNAME */
+#include <ctype.h>
+
+#ifndef VMS
+# include <pwd.h>
+#else /* VMS */
+
+extern char *getenv(const char *name);
+extern int validate_user(char *name, char *password);
+
+static Bool
+vms_passwd_valid_p(char *pw, Bool verbose_p)
+{
+ return (validate_user (getenv("USER"), typed_passwd) == 1);
+}
+# undef passwd_valid_p
+# define passwd_valid_p vms_passwd_valid_p
+
+#endif /* VMS */
+
+#define SAMPLE_INPUT "MMMMMMMMMMMM"
+
+
+#undef MAX
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+typedef struct info_dialog_data info_dialog_data;
+
+
+#define MAX_BYTES_PER_CHAR 8 /* UTF-8 uses no more than 3, I think */
+#define MAX_PASSWD_CHARS 128 /* Longest possible passphrase */
+
+struct passwd_dialog_data {
+
+ saver_screen_info *prompt_screen;
+ int previous_mouse_x, previous_mouse_y;
+
+ /* "Characters" in the password may be a variable number of bytes long.
+ typed_passwd contains the raw bytes.
+ typed_passwd_char_size indicates the size in bytes of each character,
+ so that we can make backspace work.
+ */
+ char typed_passwd [MAX_PASSWD_CHARS * MAX_BYTES_PER_CHAR];
+ char typed_passwd_char_size [MAX_PASSWD_CHARS];
+
+ XtIntervalId timer;
+ int i_beam;
+
+ float ratio;
+ Position x, y;
+ Dimension width;
+ Dimension height;
+ Dimension border_width;
+
+ Bool echo_input;
+ Bool show_stars_p; /* "I regret that I have but one asterisk for my country."
+ -- Nathan Hale, 1776. */
+
+ char *heading_label;
+ char *body_label;
+ char *user_label;
+ mlstring *info_label;
+ /* The entry field shall only be displayed if prompt_label is not NULL */
+ mlstring *prompt_label;
+ char *date_label;
+ char *passwd_string;
+ Bool passwd_changed_p; /* Whether the user entry field needs redrawing */
+ Bool caps_p; /* Whether we saw a keypress with caps-lock on */
+ char *unlock_label;
+ char *login_label;
+ char *uname_label;
+
+ Bool show_uname_p;
+
+ XFontStruct *heading_font;
+ XFontStruct *body_font;
+ XFontStruct *label_font;
+ XFontStruct *passwd_font;
+ XFontStruct *date_font;
+ XFontStruct *button_font;
+ XFontStruct *uname_font;
+
+ Pixel foreground;
+ Pixel background;
+ Pixel border;
+ Pixel passwd_foreground;
+ Pixel passwd_background;
+ Pixel thermo_foreground;
+ Pixel thermo_background;
+ Pixel shadow_top;
+ Pixel shadow_bottom;
+ Pixel button_foreground;
+ Pixel button_background;
+
+ Dimension preferred_logo_width, logo_width;
+ Dimension preferred_logo_height, logo_height;
+ Dimension thermo_width;
+ Dimension internal_border;
+ Dimension shadow_width;
+
+ Dimension passwd_field_x, passwd_field_y;
+ Dimension passwd_field_width, passwd_field_height;
+
+ Dimension unlock_button_x, unlock_button_y;
+ Dimension unlock_button_width, unlock_button_height;
+
+ Dimension login_button_x, login_button_y;
+ Dimension login_button_width, login_button_height;
+
+ Dimension thermo_field_x, thermo_field_y;
+ Dimension thermo_field_height;
+
+ Pixmap logo_pixmap;
+ Pixmap logo_clipmask;
+ int logo_npixels;
+ unsigned long *logo_pixels;
+
+ Cursor passwd_cursor;
+ Bool unlock_button_down_p;
+ Bool login_button_down_p;
+ Bool login_button_p;
+ Bool login_button_enabled_p;
+ Bool button_state_changed_p; /* Refers to both buttons */
+
+ Pixmap save_under;
+ Pixmap user_entry_pixmap;
+};
+
+static void draw_passwd_window (saver_info *si);
+static void update_passwd_window (saver_info *si, const char *printed_passwd,
+ float ratio);
+static void destroy_passwd_window (saver_info *si);
+static void undo_vp_motion (saver_info *si);
+static void finished_typing_passwd (saver_info *si, passwd_dialog_data *pw);
+static void cleanup_passwd_window (saver_info *si);
+static void restore_background (saver_info *si);
+
+extern void xss_authenticate(saver_info *si, Bool verbose_p);
+
+static int
+new_passwd_window (saver_info *si)
+{
+ passwd_dialog_data *pw;
+ Screen *screen;
+ Colormap cmap;
+ saver_screen_info *ssi = &si->screens [mouse_screen (si)];
+
+ pw = (passwd_dialog_data *) calloc (1, sizeof(*pw));
+ if (!pw)
+ return -1;
+
+ /* Display the button only if the "newLoginCommand" pref is non-null.
+ */
+ pw->login_button_p = (si->prefs.new_login_command &&
+ *si->prefs.new_login_command);
+
+ pw->passwd_cursor = XCreateFontCursor (si->dpy, XC_top_left_arrow);
+
+ pw->prompt_screen = ssi;
+
+ screen = pw->prompt_screen->screen;
+ cmap = DefaultColormapOfScreen (screen);
+
+ pw->show_stars_p = get_boolean_resource(si->dpy, "passwd.asterisks",
+ "Boolean");
+
+ pw->heading_label = get_string_resource (si->dpy, "passwd.heading.label",
+ "Dialog.Label.Label");
+ pw->body_label = get_string_resource (si->dpy, "passwd.body.label",
+ "Dialog.Label.Label");
+ pw->user_label = get_string_resource (si->dpy, "passwd.user.label",
+ "Dialog.Label.Label");
+ pw->unlock_label = get_string_resource (si->dpy, "passwd.unlock.label",
+ "Dialog.Button.Label");
+ pw->login_label = get_string_resource (si->dpy, "passwd.login.label",
+ "Dialog.Button.Label");
+
+ pw->date_label = get_string_resource (si->dpy, "dateFormat", "DateFormat");
+
+ if (!pw->heading_label)
+ pw->heading_label = strdup("ERROR: RESOURCES NOT INSTALLED CORRECTLY");
+ if (!pw->body_label)
+ pw->body_label = strdup("ERROR: RESOURCES NOT INSTALLED CORRECTLY");
+ if (!pw->user_label) pw->user_label = strdup("ERROR");
+ if (!pw->date_label) pw->date_label = strdup("ERROR");
+ if (!pw->unlock_label) pw->unlock_label = strdup("ERROR (UNLOCK)");
+ if (!pw->login_label) pw->login_label = strdup ("ERROR (LOGIN)") ;
+
+ /* Put the version number in the label. */
+ {
+ char *s = (char *) malloc (strlen(pw->heading_label) + 20);
+ sprintf(s, pw->heading_label, si->version);
+ free (pw->heading_label);
+ pw->heading_label = s;
+ }
+
+ /* Get hostname info */
+ pw->uname_label = strdup(""); /* Initialy, write nothing */
+
+# ifdef HAVE_UNAME
+ {
+ struct utsname uts;
+
+ if (uname (&uts) == 0)
+ {
+#if 0 /* Get the full hostname */
+ {
+ char *s;
+ if ((s = strchr(uts.nodename, '.')))
+ *s = 0;
+ }
+#endif
+ char *s = strdup (uts.nodename);
+ free (pw->uname_label);
+ pw->uname_label = s;
+ }
+ }
+# endif
+
+ pw->passwd_string = strdup("");
+
+ pw->heading_font =
+ splash_load_font (si->dpy, "passwd.headingFont", "Dialog.Font");
+ pw->button_font =
+ splash_load_font (si->dpy, "passwd.buttonFont", "Dialog.Font");
+ pw->body_font =
+ splash_load_font (si->dpy, "passwd.bodyFont", "Dialog.Font");
+ pw->label_font =
+ splash_load_font (si->dpy, "passwd.labelFont", "Dialog.Font");
+ pw->passwd_font =
+ splash_load_font (si->dpy, "passwd.passwdFont", "Dialog.Font");
+ pw->date_font =
+ splash_load_font (si->dpy, "passwd.dateFont", "Dialog.Font");
+ pw->uname_font =
+ splash_load_font (si->dpy, "passwd.unameFont", "Dialog.Font");
+
+ pw->show_uname_p = get_boolean_resource(si->dpy, "passwd.uname", "Boolean");
+
+ pw->foreground = get_pixel_resource (si->dpy, cmap,
+ "passwd.foreground",
+ "Dialog.Foreground" );
+ pw->background = get_pixel_resource (si->dpy, cmap,
+ "passwd.background",
+ "Dialog.Background" );
+ pw->border = get_pixel_resource (si->dpy, cmap,
+ "passwd.borderColor",
+ "Dialog.borderColor");
+
+ if (pw->foreground == pw->background)
+ {
+ /* Make sure the error messages show up. */
+ pw->foreground = BlackPixelOfScreen (screen);
+ pw->background = WhitePixelOfScreen (screen);
+ }
+
+ pw->passwd_foreground = get_pixel_resource (si->dpy, cmap,
+ "passwd.text.foreground",
+ "Dialog.Text.Foreground" );
+ pw->passwd_background = get_pixel_resource (si->dpy, cmap,
+ "passwd.text.background",
+ "Dialog.Text.Background" );
+ pw->button_foreground = get_pixel_resource (si->dpy, cmap,
+ "splash.Button.foreground",
+ "Dialog.Button.Foreground" );
+ pw->button_background = get_pixel_resource (si->dpy, cmap,
+ "splash.Button.background",
+ "Dialog.Button.Background" );
+ pw->thermo_foreground = get_pixel_resource (si->dpy, cmap,
+ "passwd.thermometer.foreground",
+ "Dialog.Thermometer.Foreground");
+ pw->thermo_background = get_pixel_resource ( si->dpy, cmap,
+ "passwd.thermometer.background",
+ "Dialog.Thermometer.Background");
+ pw->shadow_top = get_pixel_resource ( si->dpy, cmap,
+ "passwd.topShadowColor",
+ "Dialog.Foreground" );
+ pw->shadow_bottom = get_pixel_resource (si->dpy, cmap,
+ "passwd.bottomShadowColor",
+ "Dialog.Background" );
+
+ pw->preferred_logo_width = get_integer_resource (si->dpy,
+ "passwd.logo.width",
+ "Dialog.Logo.Width");
+ pw->preferred_logo_height = get_integer_resource (si->dpy,
+ "passwd.logo.height",
+ "Dialog.Logo.Height");
+ pw->thermo_width = get_integer_resource (si->dpy, "passwd.thermometer.width",
+ "Dialog.Thermometer.Width");
+ pw->internal_border = get_integer_resource (si->dpy,
+ "passwd.internalBorderWidth",
+ "Dialog.InternalBorderWidth");
+ pw->shadow_width = get_integer_resource (si->dpy, "passwd.shadowThickness",
+ "Dialog.ShadowThickness");
+
+ if (pw->preferred_logo_width == 0) pw->preferred_logo_width = 150;
+ if (pw->preferred_logo_height == 0) pw->preferred_logo_height = 150;
+ if (pw->internal_border == 0) pw->internal_border = 15;
+ if (pw->shadow_width == 0) pw->shadow_width = 4;
+ if (pw->thermo_width == 0) pw->thermo_width = pw->shadow_width;
+
+
+ /* We need to remember the mouse position and restore it afterward, or
+ sometimes (perhaps only with Xinerama?) the mouse gets warped to
+ inside the bounds of the lock dialog window.
+ */
+ {
+ Window pointer_root, pointer_child;
+ int root_x, root_y, win_x, win_y;
+ unsigned int mask;
+ pw->previous_mouse_x = 0;
+ pw->previous_mouse_y = 0;
+ if (XQueryPointer (si->dpy, RootWindowOfScreen (pw->prompt_screen->screen),
+ &pointer_root, &pointer_child,
+ &root_x, &root_y, &win_x, &win_y, &mask))
+ {
+ pw->previous_mouse_x = root_x;
+ pw->previous_mouse_y = root_y;
+ if (si->prefs.verbose_p)
+ fprintf (stderr, "%s: %d: mouse is at %d,%d.\n",
+ blurb(), pw->prompt_screen->number,
+ pw->previous_mouse_x, pw->previous_mouse_y);
+ }
+ else if (si->prefs.verbose_p)
+ fprintf (stderr, "%s: %d: unable to determine mouse position?\n",
+ blurb(), pw->prompt_screen->number);
+ }
+
+ /* Before mapping the window, save a pixmap of the current screen.
+ When we lower the window, we restore these bits. This works,
+ because the running screenhack has already been sent SIGSTOP, so
+ we know nothing else is drawing right now! */
+ {
+ XGCValues gcv;
+ GC gc;
+ pw->save_under = XCreatePixmap (si->dpy,
+ pw->prompt_screen->screensaver_window,
+ pw->prompt_screen->width,
+ pw->prompt_screen->height,
+ pw->prompt_screen->current_depth);
+ gcv.function = GXcopy;
+ gc = XCreateGC (si->dpy, pw->save_under, GCFunction, &gcv);
+ XCopyArea (si->dpy, pw->prompt_screen->screensaver_window,
+ pw->save_under, gc,
+ 0, 0,
+ pw->prompt_screen->width, pw->prompt_screen->height,
+ 0, 0);
+ XFreeGC (si->dpy, gc);
+ }
+
+ si->pw_data = pw;
+ return 0;
+}
+
+
+Bool debug_passwd_window_p = False; /* used only by test-passwd.c */
+
+
+/**
+ * info_msg and prompt may be NULL.
+ */
+static int
+make_passwd_window (saver_info *si,
+ const char *info_msg,
+ const char *prompt,
+ Bool echo)
+{
+ XSetWindowAttributes attrs;
+ unsigned long attrmask = 0;
+ passwd_dialog_data *pw;
+ Screen *screen;
+ Colormap cmap;
+ Dimension max_string_width_px;
+ saver_screen_info *ssi = &si->screens [mouse_screen (si)];
+
+ cleanup_passwd_window (si);
+
+ if (! ssi) /* WTF? Trying to prompt while no screens connected? */
+ return -1;
+
+ if (!si->pw_data)
+ if (new_passwd_window (si) < 0)
+ return -1;
+
+ if (!(pw = si->pw_data))
+ return -1;
+
+ pw->ratio = 1.0;
+
+ pw->prompt_screen = ssi;
+ if (si->prefs.verbose_p)
+ fprintf (stderr, "%s: %d: creating password dialog (\"%s\")\n",
+ blurb(), pw->prompt_screen->number,
+ info_msg ? info_msg : "");
+
+ screen = pw->prompt_screen->screen;
+ cmap = DefaultColormapOfScreen (screen);
+
+ pw->echo_input = echo;
+
+ max_string_width_px = ssi->width
+ - pw->shadow_width * 4
+ - pw->border_width * 2
+ - pw->thermo_width
+ - pw->preferred_logo_width
+ - pw->internal_border * 2;
+ /* As the string wraps it makes the window taller which makes the logo wider
+ * which leaves less room for the text which makes the string wrap. Uh-oh, a
+ * loop. By wrapping at a bit less than the available width, there's some
+ * room for the dialog to grow without going off the edge of the screen. */
+ max_string_width_px *= 0.75;
+
+ if (!info_msg && senesculent_p())
+ info_msg = ("\n"
+ "This version of XScreenSaver\n"
+ "is very old! Please upgrade!\n");
+
+ pw->info_label = mlstring_new(info_msg ? info_msg : pw->body_label,
+ pw->label_font, max_string_width_px);
+
+ {
+ int direction, ascent, descent;
+ XCharStruct overall;
+
+ pw->width = 0;
+ pw->height = 0;
+
+ /* Measure the heading_label. */
+ XTextExtents (pw->heading_font,
+ pw->heading_label, strlen(pw->heading_label),
+ &direction, &ascent, &descent, &overall);
+ if (overall.width > pw->width) pw->width = overall.width;
+ pw->height += ascent + descent;
+
+ /* Measure the uname_label. */
+ if ((strlen(pw->uname_label)) && pw->show_uname_p)
+ {
+ XTextExtents (pw->uname_font,
+ pw->uname_label, strlen(pw->uname_label),
+ &direction, &ascent, &descent, &overall);
+ if (overall.width > pw->width) pw->width = overall.width;
+ pw->height += ascent + descent;
+ }
+
+ {
+ Dimension w2 = 0, w3 = 0, button_w = 0;
+ Dimension h2 = 0, h3 = 0, button_h = 0;
+ const char *passwd_string = SAMPLE_INPUT;
+
+ /* Measure the user_label. */
+ XTextExtents (pw->label_font,
+ pw->user_label, strlen(pw->user_label),
+ &direction, &ascent, &descent, &overall);
+ if (overall.width > w2) w2 = overall.width;
+ h2 += ascent + descent;
+
+ /* Measure the info_label. */
+ if (pw->info_label->overall_width > pw->width)
+ pw->width = pw->info_label->overall_width;
+ h2 += pw->info_label->overall_height;
+
+ /* Measure the user string. */
+ XTextExtents (pw->passwd_font,
+ si->user, strlen(si->user),
+ &direction, &ascent, &descent, &overall);
+ overall.width += (pw->shadow_width * 4);
+ ascent += (pw->shadow_width * 4);
+ if (overall.width > w3) w3 = overall.width;
+ h3 += ascent + descent;
+
+ /* Measure the (dummy) passwd_string. */
+ if (prompt)
+ {
+ XTextExtents (pw->passwd_font,
+ passwd_string, strlen(passwd_string),
+ &direction, &ascent, &descent, &overall);
+ overall.width += (pw->shadow_width * 4);
+ ascent += (pw->shadow_width * 4);
+ if (overall.width > w3) w3 = overall.width;
+ h3 += ascent + descent;
+
+ /* Measure the prompt_label. */
+ max_string_width_px -= w3;
+ pw->prompt_label = mlstring_new (prompt, pw->label_font,
+ max_string_width_px);
+
+ if (pw->prompt_label->overall_width > w2)
+ w2 = pw->prompt_label->overall_width;
+
+ h2 += pw->prompt_label->overall_height;
+
+ w2 = w2 + w3 + (pw->shadow_width * 2);
+ h2 = MAX (h2, h3);
+ }
+
+ /* The "Unlock" button. */
+ XTextExtents (pw->label_font,
+ pw->unlock_label, strlen(pw->unlock_label),
+ &direction, &ascent, &descent, &overall);
+ button_w = overall.width;
+ button_h = ascent + descent;
+
+ /* Add some horizontal padding inside the button. */
+ button_w += ascent;
+
+ button_w += ((ascent + descent) / 2) + (pw->shadow_width * 2);
+ button_h += ((ascent + descent) / 2) + (pw->shadow_width * 2);
+
+ pw->unlock_button_width = button_w;
+ pw->unlock_button_height = button_h;
+
+ w2 = MAX (w2, button_w);
+ h2 += button_h * 1.5;
+
+ /* The "New Login" button */
+ pw->login_button_width = 0;
+ pw->login_button_height = 0;
+
+ if (pw->login_button_p)
+ {
+ pw->login_button_enabled_p = True;
+
+ /* Measure the "New Login" button */
+ XTextExtents (pw->button_font, pw->login_label,
+ strlen (pw->login_label),
+ &direction, &ascent, &descent, &overall);
+ button_w = overall.width;
+ button_h = ascent + descent;
+
+ /* Add some horizontal padding inside the buttons. */
+ button_w += ascent;
+
+ button_w += ((ascent + descent) / 2) + (pw->shadow_width * 2);
+ button_h += ((ascent + descent) / 2) + (pw->shadow_width * 2);
+
+ pw->login_button_width = button_w;
+ pw->login_button_height = button_h;
+
+ if (button_h > pw->unlock_button_height)
+ h2 += (button_h * 1.5 - pw->unlock_button_height * 1.5);
+
+ /* Use (2 * shadow_width) spacing between the buttons. Another
+ (2 * shadow_width) is required to account for button shadows. */
+ w2 = MAX (w2,
+ button_w + pw->unlock_button_width +
+ (pw->shadow_width * 4));
+ }
+
+ if (w2 > pw->width) pw->width = w2;
+ pw->height += h2;
+ }
+
+ pw->width += (pw->internal_border * 2);
+ pw->height += (pw->internal_border * 4);
+
+ pw->width += pw->thermo_width + (pw->shadow_width * 3);
+
+ if (pw->preferred_logo_height > pw->height)
+ pw->height = pw->logo_height = pw->preferred_logo_height;
+ else if (pw->height > pw->preferred_logo_height)
+ pw->logo_height = pw->height;
+
+ pw->logo_width = pw->logo_height;
+
+ pw->width += pw->logo_width;
+ }
+
+ attrmask |= CWOverrideRedirect; attrs.override_redirect = True;
+
+ if (debug_passwd_window_p)
+ attrs.override_redirect = False; /* kludge for test-passwd.c */
+
+ attrmask |= CWEventMask;
+ attrs.event_mask = (ExposureMask | KeyPressMask |
+ ButtonPressMask | ButtonReleaseMask);
+
+ /* Figure out where on the desktop to place the window so that it will
+ actually be visible; this takes into account virtual viewports as
+ well as Xinerama. */
+ {
+ saver_screen_info *ssi = &si->screens [mouse_screen (si)];
+ int x = ssi->x;
+ int y = ssi->y;
+ int w = ssi->width;
+ int h = ssi->height;
+ if (si->prefs.debug_p) w /= 2;
+ pw->x = x + ((w + pw->width) / 2) - pw->width;
+ pw->y = y + ((h + pw->height) / 2) - pw->height;
+ if (pw->x < x) pw->x = x;
+ if (pw->y < y) pw->y = y;
+ }
+
+ pw->border_width = get_integer_resource (si->dpy, "passwd.borderWidth",
+ "Dialog.BorderWidth");
+
+ /* Only create the window the first time around */
+ if (!si->passwd_dialog)
+ {
+ si->passwd_dialog =
+ XCreateWindow (si->dpy,
+ RootWindowOfScreen(screen),
+ pw->x, pw->y, pw->width, pw->height, pw->border_width,
+ DefaultDepthOfScreen (screen), InputOutput,
+ DefaultVisualOfScreen(screen),
+ attrmask, &attrs);
+ XSetWindowBackground (si->dpy, si->passwd_dialog, pw->background);
+ XSetWindowBorder (si->dpy, si->passwd_dialog, pw->border);
+
+ /* We use the default visual, not ssi->visual, so that the logo pixmap's
+ visual matches that of the si->passwd_dialog window. */
+ pw->logo_pixmap = xscreensaver_logo (ssi->screen,
+ /* ssi->current_visual, */
+ DefaultVisualOfScreen(screen),
+ si->passwd_dialog, cmap,
+ pw->background,
+ &pw->logo_pixels, &pw->logo_npixels,
+ &pw->logo_clipmask, True);
+ }
+ else /* On successive prompts, just resize the window */
+ {
+ XWindowChanges wc;
+ unsigned int mask = CWX | CWY | CWWidth | CWHeight;
+
+ wc.x = pw->x;
+ wc.y = pw->y;
+ wc.width = pw->width;
+ wc.height = pw->height;
+
+ XConfigureWindow (si->dpy, si->passwd_dialog, mask, &wc);
+ }
+
+ restore_background(si);
+
+ XMapRaised (si->dpy, si->passwd_dialog);
+ XSync (si->dpy, False);
+
+ move_mouse_grab (si, si->passwd_dialog,
+ pw->passwd_cursor,
+ pw->prompt_screen->number);
+ undo_vp_motion (si);
+
+ si->pw_data = pw;
+
+ if (cmap)
+ XInstallColormap (si->dpy, cmap);
+ draw_passwd_window (si);
+
+ return 0;
+}
+
+
+static void
+draw_passwd_window (saver_info *si)
+{
+ passwd_dialog_data *pw = si->pw_data;
+ XGCValues gcv;
+ GC gc1, gc2;
+ int spacing, height;
+ int x1, x2, x3, y1, y2;
+ int sw;
+ int tb_height;
+
+ /* Force redraw */
+ pw->passwd_changed_p = True;
+ pw->button_state_changed_p = True;
+
+ /* This height is the height of all the elements, not to be confused with
+ * the overall window height which is pw->height. It is used to compute
+ * the amount of spacing (padding) between elements. */
+ height = (pw->heading_font->ascent + pw->heading_font->descent +
+ pw->info_label->overall_height +
+ MAX (((pw->label_font->ascent + pw->label_font->descent) +
+ (pw->prompt_label ? pw->prompt_label->overall_height : 0)),
+ ((pw->passwd_font->ascent + pw->passwd_font->descent) +
+ (pw->shadow_width * 2)) * (pw->prompt_label ? 2 : 1)) +
+ pw->date_font->ascent + pw->date_font->descent);
+
+ if ((strlen(pw->uname_label)) && pw->show_uname_p)
+ height += (pw->uname_font->ascent + pw->uname_font->descent);
+
+ height += ((pw->button_font->ascent + pw->button_font->descent) * 2 +
+ 2 * pw->shadow_width);
+
+ spacing = ((pw->height - 2 * pw->shadow_width
+ - pw->internal_border - height)
+ / 10);
+
+ if (spacing < 0) spacing = 0;
+
+ gcv.foreground = pw->foreground;
+ gc1 = XCreateGC (si->dpy, si->passwd_dialog, GCForeground, &gcv);
+ gc2 = XCreateGC (si->dpy, si->passwd_dialog, GCForeground, &gcv);
+ x1 = pw->logo_width + pw->thermo_width + (pw->shadow_width * 3);
+ x3 = pw->width - (pw->shadow_width * 2);
+ y1 = (pw->shadow_width * 2) + spacing + spacing;
+
+ /* top heading
+ */
+ XSetFont (si->dpy, gc1, pw->heading_font->fid);
+ sw = string_width (pw->heading_font, pw->heading_label);
+ x2 = (x1 + ((x3 - x1 - sw) / 2));
+ y1 += spacing + pw->heading_font->ascent + pw->heading_font->descent;
+ XDrawString (si->dpy, si->passwd_dialog, gc1, x2, y1,
+ pw->heading_label, strlen(pw->heading_label));
+
+ /* uname below top heading
+ */
+ if ((strlen(pw->uname_label)) && pw->show_uname_p)
+ {
+ XSetFont (si->dpy, gc1, pw->uname_font->fid);
+ y1 += spacing + pw->uname_font->ascent + pw->uname_font->descent;
+ sw = string_width (pw->uname_font, pw->uname_label);
+ x2 = (x1 + ((x3 - x1 - sw) / 2));
+ XDrawString (si->dpy, si->passwd_dialog, gc1, x2, y1,
+ pw->uname_label, strlen(pw->uname_label));
+ }
+
+ /* the info_label (below uname)
+ */
+ x2 = (x1 + ((x3 - x1 - pw->info_label->overall_width) / 2));
+ y1 += spacing + pw->info_label->font_height / 2;
+ mlstring_draw(si->dpy, si->passwd_dialog, gc1, pw->info_label,
+ x2, y1);
+ y1 += pw->info_label->overall_height;
+
+
+ tb_height = (pw->passwd_font->ascent + pw->passwd_font->descent +
+ (pw->shadow_width * 4));
+
+ /* the "User:" prompt
+ */
+ y2 = y1;
+ XSetForeground (si->dpy, gc1, pw->foreground);
+ XSetFont (si->dpy, gc1, pw->label_font->fid);
+ y1 += (spacing + tb_height + pw->shadow_width);
+ x2 = (x1 + pw->internal_border +
+ MAX(string_width (pw->label_font, pw->user_label),
+ pw->prompt_label ? pw->prompt_label->overall_width : 0));
+ XDrawString (si->dpy, si->passwd_dialog, gc1,
+ x2 - string_width (pw->label_font, pw->user_label),
+ y1 - pw->passwd_font->descent,
+ pw->user_label, strlen(pw->user_label));
+
+ /* the prompt_label prompt
+ */
+ if (pw->prompt_label)
+ {
+ y1 += tb_height - pw->label_font->ascent + pw->shadow_width;
+ mlstring_draw(si->dpy, si->passwd_dialog, gc1, pw->prompt_label,
+ x2 - pw->prompt_label->overall_width, y1);
+ }
+
+ /* the "user name" text field
+ */
+ y1 = y2;
+ XSetForeground (si->dpy, gc1, pw->passwd_foreground);
+ XSetForeground (si->dpy, gc2, pw->passwd_background);
+ XSetFont (si->dpy, gc1, pw->passwd_font->fid);
+ y1 += (spacing + tb_height);
+ x2 += (pw->shadow_width * 4);
+
+ pw->passwd_field_width = x3 - x2 - pw->internal_border;
+ pw->passwd_field_height = (pw->passwd_font->ascent +
+ pw->passwd_font->descent +
+ pw->shadow_width);
+
+ XFillRectangle (si->dpy, si->passwd_dialog, gc2,
+ x2 - pw->shadow_width,
+ y1 - (pw->passwd_font->ascent + pw->passwd_font->descent),
+ pw->passwd_field_width, pw->passwd_field_height);
+ XDrawString (si->dpy, si->passwd_dialog, gc1,
+ x2,
+ y1 - pw->passwd_font->descent,
+ si->user, strlen(si->user));
+
+ /* the password/prompt text field
+ */
+ if (pw->prompt_label)
+ {
+ y1 += (spacing + pw->prompt_label->overall_height + pw->shadow_width*2);
+
+ pw->passwd_field_x = x2 - pw->shadow_width;
+ pw->passwd_field_y = y1 - (pw->passwd_font->ascent +
+ pw->passwd_font->descent);
+ }
+
+ /* The shadow around the text fields
+ */
+ y1 = y2;
+ y1 += (spacing + (pw->shadow_width * 3));
+ x1 = x2 - (pw->shadow_width * 2);
+ x2 = pw->passwd_field_width + (pw->shadow_width * 2);
+ y2 = pw->passwd_field_height + (pw->shadow_width * 2);
+
+ draw_shaded_rectangle (si->dpy, si->passwd_dialog,
+ x1, y1, x2, y2,
+ pw->shadow_width,
+ pw->shadow_bottom, pw->shadow_top);
+
+ if (pw->prompt_label)
+ {
+ y1 += (spacing + pw->prompt_label->overall_height + pw->shadow_width*2);
+ draw_shaded_rectangle (si->dpy, si->passwd_dialog,
+ x1, y1, x2, y2,
+ pw->shadow_width,
+ pw->shadow_bottom, pw->shadow_top);
+ }
+
+
+ /* The date, below the text fields
+ */
+ {
+ char buf[100];
+ time_t now = time ((time_t *) 0);
+ struct tm *tm = localtime (&now);
+ memset (buf, 0, sizeof(buf));
+ strftime (buf, sizeof(buf)-1, pw->date_label, tm);
+
+ XSetFont (si->dpy, gc1, pw->date_font->fid);
+ y1 += pw->shadow_width;
+ y1 += (spacing + tb_height);
+ y1 += spacing/2;
+ sw = string_width (pw->date_font, buf);
+ x2 = x1 + x2 - sw;
+ XDrawString (si->dpy, si->passwd_dialog, gc1, x2, y1, buf, strlen(buf));
+ }
+
+ /* Set up the GCs for the "New Login" and "Unlock" buttons.
+ */
+ XSetForeground(si->dpy, gc1, pw->button_foreground);
+ XSetForeground(si->dpy, gc2, pw->button_background);
+ XSetFont(si->dpy, gc1, pw->button_font->fid);
+
+ /* The "Unlock" button */
+ x2 = pw->width - pw->internal_border - (pw->shadow_width * 2);
+
+ /* right aligned button */
+ x1 = x2 - pw->unlock_button_width;
+
+ /* Add half the difference between y1 and the internal edge.
+ * It actually looks better if the internal border is ignored. */
+ y1 += ((pw->height - MAX (pw->unlock_button_height, pw->login_button_height)
+ - spacing - y1)
+ / 2);
+
+ pw->unlock_button_x = x1;
+ pw->unlock_button_y = y1;
+
+ /* The "New Login" button
+ */
+ if (pw->login_button_p)
+ {
+ /* Using the same GC as for the Unlock button */
+
+ sw = string_width (pw->button_font, pw->login_label);
+
+ /* left aligned button */
+ x1 = (pw->logo_width + pw->thermo_width + (pw->shadow_width * 3) +
+ pw->internal_border);
+
+ pw->login_button_x = x1;
+ pw->login_button_y = y1;
+ }
+
+ /* The logo
+ */
+ x1 = pw->shadow_width * 6;
+ y1 = pw->shadow_width * 6;
+ x2 = pw->logo_width - (pw->shadow_width * 12);
+ y2 = pw->logo_height - (pw->shadow_width * 12);
+
+ if (pw->logo_pixmap)
+ {
+ Window root;
+ int x, y;
+ unsigned int w, h, bw, d;
+ XGetGeometry (si->dpy, pw->logo_pixmap, &root, &x, &y, &w, &h, &bw, &d);
+ XSetForeground (si->dpy, gc1, pw->foreground);
+ XSetBackground (si->dpy, gc1, pw->background);
+ XSetClipMask (si->dpy, gc1, pw->logo_clipmask);
+ XSetClipOrigin (si->dpy, gc1,
+ x1 + ((x2 - (int)w) / 2),
+ y1 + ((y2 - (int)h) / 2));
+ if (d == 1)
+ XCopyPlane (si->dpy, pw->logo_pixmap, si->passwd_dialog, gc1,
+ 0, 0, w, h,
+ x1 + ((x2 - (int)w) / 2),
+ y1 + ((y2 - (int)h) / 2),
+ 1);
+ else
+ XCopyArea (si->dpy, pw->logo_pixmap, si->passwd_dialog, gc1,
+ 0, 0, w, h,
+ x1 + ((x2 - (int)w) / 2),
+ y1 + ((y2 - (int)h) / 2));
+ }
+
+ /* The thermometer
+ */
+ XSetForeground (si->dpy, gc1, pw->thermo_foreground);
+ XSetForeground (si->dpy, gc2, pw->thermo_background);
+
+ pw->thermo_field_x = pw->logo_width + pw->shadow_width;
+ pw->thermo_field_y = pw->shadow_width * 5;
+ pw->thermo_field_height = pw->height - (pw->shadow_width * 10);
+
+#if 0
+ /* Solid border inside the logo box. */
+ XSetForeground (si->dpy, gc1, pw->foreground);
+ XDrawRectangle (si->dpy, si->passwd_dialog, gc1, x1, y1, x2-1, y2-1);
+#endif
+
+ /* The shadow around the logo
+ */
+ draw_shaded_rectangle (si->dpy, si->passwd_dialog,
+ pw->shadow_width * 4,
+ pw->shadow_width * 4,
+ pw->logo_width - (pw->shadow_width * 8),
+ pw->logo_height - (pw->shadow_width * 8),
+ pw->shadow_width,
+ pw->shadow_bottom, pw->shadow_top);
+
+ /* The shadow around the thermometer
+ */
+ draw_shaded_rectangle (si->dpy, si->passwd_dialog,
+ pw->logo_width,
+ pw->shadow_width * 4,
+ pw->thermo_width + (pw->shadow_width * 2),
+ pw->height - (pw->shadow_width * 8),
+ pw->shadow_width,
+ pw->shadow_bottom, pw->shadow_top);
+
+#if 1
+ /* Solid border inside the thermometer. */
+ XSetForeground (si->dpy, gc1, pw->foreground);
+ XDrawRectangle (si->dpy, si->passwd_dialog, gc1,
+ pw->thermo_field_x, pw->thermo_field_y,
+ pw->thermo_width - 1, pw->thermo_field_height - 1);
+#endif
+
+ /* The shadow around the whole window
+ */
+ draw_shaded_rectangle (si->dpy, si->passwd_dialog,
+ 0, 0, pw->width, pw->height, pw->shadow_width,
+ pw->shadow_top, pw->shadow_bottom);
+
+ XFreeGC (si->dpy, gc1);
+ XFreeGC (si->dpy, gc2);
+
+ update_passwd_window (si, pw->passwd_string, pw->ratio);
+}
+
+static void
+draw_button(Display *dpy,
+ Drawable dialog,
+ XFontStruct *font,
+ unsigned long foreground, unsigned long background,
+ char *label,
+ int x, int y,
+ int width, int height,
+ int shadow_width,
+ Pixel shadow_light, Pixel shadow_dark,
+ Bool button_down)
+{
+ XGCValues gcv;
+ GC gc1, gc2;
+ int sw;
+ int label_x, label_y;
+
+ gcv.foreground = foreground;
+ gcv.font = font->fid;
+ gc1 = XCreateGC(dpy, dialog, GCForeground|GCFont, &gcv);
+ gcv.foreground = background;
+ gc2 = XCreateGC(dpy, dialog, GCForeground, &gcv);
+
+ XFillRectangle(dpy, dialog, gc2,
+ x, y, width, height);
+
+ sw = string_width(font, label);
+
+ label_x = x + ((width - sw) / 2);
+ label_y = (y + (height - (font->ascent + font->descent)) / 2 + font->ascent);
+
+ if (button_down)
+ {
+ label_x += 2;
+ label_y += 2;
+ }
+
+ XDrawString(dpy, dialog, gc1, label_x, label_y, label, strlen(label));
+
+ XFreeGC(dpy, gc1);
+ XFreeGC(dpy, gc2);
+
+ draw_shaded_rectangle(dpy, dialog, x, y, width, height,
+ shadow_width, shadow_light, shadow_dark);
+}
+
+static void
+update_passwd_window (saver_info *si, const char *printed_passwd, float ratio)
+{
+ passwd_dialog_data *pw = si->pw_data;
+ XGCValues gcv;
+ GC gc1, gc2;
+ int x, y;
+ XRectangle rects[1];
+
+ pw->ratio = ratio;
+ gcv.foreground = pw->passwd_foreground;
+ gcv.font = pw->passwd_font->fid;
+ gc1 = XCreateGC (si->dpy, si->passwd_dialog, GCForeground|GCFont, &gcv);
+ gcv.foreground = pw->passwd_background;
+ gc2 = XCreateGC (si->dpy, si->passwd_dialog, GCForeground, &gcv);
+
+ if (printed_passwd)
+ {
+ char *s = strdup (printed_passwd);
+ if (pw->passwd_string) free (pw->passwd_string);
+ pw->passwd_string = s;
+ }
+
+ if (pw->prompt_label)
+ {
+
+ /* the "password" text field
+ */
+ rects[0].x = pw->passwd_field_x;
+ rects[0].y = pw->passwd_field_y;
+ rects[0].width = pw->passwd_field_width;
+ rects[0].height = pw->passwd_field_height;
+
+ /* The user entry (password) field is double buffered.
+ * This avoids flickering, particularly in synchronous mode. */
+
+ if (pw->passwd_changed_p)
+ {
+ pw->passwd_changed_p = False;
+
+ if (pw->user_entry_pixmap)
+ {
+ XFreePixmap(si->dpy, pw->user_entry_pixmap);
+ pw->user_entry_pixmap = 0;
+ }
+
+ pw->user_entry_pixmap =
+ XCreatePixmap (si->dpy, si->passwd_dialog,
+ rects[0].width, rects[0].height,
+ DefaultDepthOfScreen (pw->prompt_screen->screen));
+
+ XFillRectangle (si->dpy, pw->user_entry_pixmap, gc2,
+ 0, 0, rects[0].width, rects[0].height);
+
+ XDrawString (si->dpy, pw->user_entry_pixmap, gc1,
+ pw->shadow_width,
+ pw->passwd_font->ascent,
+ pw->passwd_string, strlen(pw->passwd_string));
+
+ /* Ensure the new pixmap gets copied to the window */
+ pw->i_beam = 0;
+
+ }
+
+ /* The I-beam
+ */
+ if (pw->i_beam == 0)
+ {
+ /* Make the I-beam disappear */
+ XCopyArea(si->dpy, pw->user_entry_pixmap, si->passwd_dialog, gc2,
+ 0, 0, rects[0].width, rects[0].height,
+ rects[0].x, rects[0].y);
+ }
+ else if (pw->i_beam == 1)
+ {
+ /* Make the I-beam appear */
+ x = (rects[0].x + pw->shadow_width +
+ string_width (pw->passwd_font, pw->passwd_string));
+ y = rects[0].y + pw->shadow_width;
+
+ if (x > rects[0].x + rects[0].width - 1)
+ x = rects[0].x + rects[0].width - 1;
+ XDrawLine (si->dpy, si->passwd_dialog, gc1,
+ x, y,
+ x, y + pw->passwd_font->ascent +
+ pw->passwd_font->descent-1);
+ }
+
+ pw->i_beam = (pw->i_beam + 1) % 4;
+
+ }
+
+ /* the thermometer
+ */
+ y = (pw->thermo_field_height - 2) * (1.0 - pw->ratio);
+ if (y > 0)
+ {
+ XFillRectangle (si->dpy, si->passwd_dialog, gc2,
+ pw->thermo_field_x + 1,
+ pw->thermo_field_y + 1,
+ pw->thermo_width-2,
+ y);
+ XSetForeground (si->dpy, gc1, pw->thermo_foreground);
+ XFillRectangle (si->dpy, si->passwd_dialog, gc1,
+ pw->thermo_field_x + 1,
+ pw->thermo_field_y + 1 + y,
+ pw->thermo_width-2,
+ MAX (0, pw->thermo_field_height - y - 2));
+ }
+
+ if (pw->button_state_changed_p)
+ {
+ pw->button_state_changed_p = False;
+
+ /* The "Unlock" button
+ */
+ draw_button(si->dpy, si->passwd_dialog, pw->button_font,
+ pw->button_foreground, pw->button_background,
+ pw->unlock_label,
+ pw->unlock_button_x, pw->unlock_button_y,
+ pw->unlock_button_width, pw->unlock_button_height,
+ pw->shadow_width,
+ (pw->unlock_button_down_p ? pw->shadow_bottom :
+ pw->shadow_top),
+ (pw->unlock_button_down_p ? pw->shadow_top :
+ pw->shadow_bottom),
+ pw->unlock_button_down_p);
+
+ /* The "New Login" button
+ */
+ if (pw->login_button_p)
+ {
+ draw_button(si->dpy, si->passwd_dialog, pw->button_font,
+ (pw->login_button_enabled_p
+ ? pw->passwd_foreground
+ : pw->shadow_bottom),
+ pw->button_background,
+ pw->login_label,
+ pw->login_button_x, pw->login_button_y,
+ pw->login_button_width, pw->login_button_height,
+ pw->shadow_width,
+ (pw->login_button_down_p
+ ? pw->shadow_bottom
+ : pw->shadow_top),
+ (pw->login_button_down_p
+ ? pw->shadow_top
+ : pw->shadow_bottom),
+ pw->login_button_down_p);
+ }
+ }
+
+ XFreeGC (si->dpy, gc1);
+ XFreeGC (si->dpy, gc2);
+ XSync (si->dpy, False);
+}
+
+
+void
+restore_background (saver_info *si)
+{
+ passwd_dialog_data *pw = si->pw_data;
+ saver_screen_info *ssi = pw->prompt_screen;
+ XGCValues gcv;
+ GC gc;
+
+ gcv.function = GXcopy;
+
+ gc = XCreateGC (si->dpy, ssi->screensaver_window, GCFunction, &gcv);
+
+ XCopyArea (si->dpy, pw->save_under,
+ ssi->screensaver_window, gc,
+ 0, 0,
+ ssi->width, ssi->height,
+ 0, 0);
+
+ XFreeGC (si->dpy, gc);
+}
+
+
+/* Frees anything created by make_passwd_window */
+static void
+cleanup_passwd_window (saver_info *si)
+{
+ passwd_dialog_data *pw;
+
+ if (!(pw = si->pw_data))
+ return;
+
+ if (pw->info_label)
+ {
+ mlstring_free(pw->info_label);
+ pw->info_label = 0;
+ }
+
+ if (pw->prompt_label)
+ {
+ mlstring_free(pw->prompt_label);
+ pw->prompt_label = 0;
+ }
+
+ memset (pw->typed_passwd, 0, sizeof(pw->typed_passwd));
+ memset (pw->typed_passwd_char_size, 0, sizeof(pw->typed_passwd_char_size));
+ memset (pw->passwd_string, 0, strlen(pw->passwd_string));
+
+ if (pw->timer)
+ {
+ XtRemoveTimeOut (pw->timer);
+ pw->timer = 0;
+ }
+
+ if (pw->user_entry_pixmap)
+ {
+ XFreePixmap(si->dpy, pw->user_entry_pixmap);
+ pw->user_entry_pixmap = 0;
+ }
+}
+
+
+static void
+destroy_passwd_window (saver_info *si)
+{
+ saver_preferences *p = &si->prefs;
+ passwd_dialog_data *pw = si->pw_data;
+ saver_screen_info *ssi = pw->prompt_screen;
+ Colormap cmap = DefaultColormapOfScreen (ssi->screen);
+ Pixel black = BlackPixelOfScreen (ssi->screen);
+ Pixel white = WhitePixelOfScreen (ssi->screen);
+ XEvent event;
+
+ cleanup_passwd_window (si);
+
+ if (si->cached_passwd)
+ {
+ char *wipe = si->cached_passwd;
+
+ while (*wipe)
+ *wipe++ = '\0';
+
+ free(si->cached_passwd);
+ si->cached_passwd = NULL;
+ }
+
+ move_mouse_grab (si, RootWindowOfScreen (ssi->screen),
+ ssi->cursor, ssi->number);
+
+ if (pw->passwd_cursor)
+ XFreeCursor (si->dpy, pw->passwd_cursor);
+
+ if (p->verbose_p)
+ fprintf (stderr, "%s: %d: moving mouse back to %d,%d.\n",
+ blurb(), ssi->number,
+ pw->previous_mouse_x, pw->previous_mouse_y);
+
+ XWarpPointer (si->dpy, None, RootWindowOfScreen (ssi->screen),
+ 0, 0, 0, 0,
+ pw->previous_mouse_x, pw->previous_mouse_y);
+ XSync (si->dpy, False);
+
+ while (XCheckMaskEvent (si->dpy, PointerMotionMask, &event))
+ if (p->verbose_p)
+ fprintf (stderr, "%s: discarding MotionNotify event.\n", blurb());
+
+#ifdef HAVE_XINPUT
+ if (si->using_xinput_extension && si->xinput_DeviceMotionNotify)
+ while (XCheckTypedEvent (si->dpy, si->xinput_DeviceMotionNotify, &event))
+ if (p->verbose_p)
+ fprintf (stderr, "%s: discarding DeviceMotionNotify event.\n",
+ blurb());
+#endif
+
+ if (si->passwd_dialog)
+ {
+ if (si->prefs.verbose_p)
+ fprintf (stderr, "%s: %d: destroying password dialog.\n",
+ blurb(), pw->prompt_screen->number);
+
+ XDestroyWindow (si->dpy, si->passwd_dialog);
+ si->passwd_dialog = 0;
+ }
+
+ if (pw->save_under)
+ {
+ restore_background(si);
+ XFreePixmap (si->dpy, pw->save_under);
+ pw->save_under = 0;
+ }
+
+ if (pw->heading_label) free (pw->heading_label);
+ if (pw->body_label) free (pw->body_label);
+ if (pw->user_label) free (pw->user_label);
+ if (pw->date_label) free (pw->date_label);
+ if (pw->login_label) free (pw->login_label);
+ if (pw->unlock_label) free (pw->unlock_label);
+ if (pw->passwd_string) free (pw->passwd_string);
+ if (pw->uname_label) free (pw->uname_label);
+
+ if (pw->heading_font) XFreeFont (si->dpy, pw->heading_font);
+ if (pw->body_font) XFreeFont (si->dpy, pw->body_font);
+ if (pw->label_font) XFreeFont (si->dpy, pw->label_font);
+ if (pw->passwd_font) XFreeFont (si->dpy, pw->passwd_font);
+ if (pw->date_font) XFreeFont (si->dpy, pw->date_font);
+ if (pw->button_font) XFreeFont (si->dpy, pw->button_font);
+ if (pw->uname_font) XFreeFont (si->dpy, pw->uname_font);
+
+ if (pw->foreground != black && pw->foreground != white)
+ XFreeColors (si->dpy, cmap, &pw->foreground, 1, 0L);
+ if (pw->background != black && pw->background != white)
+ XFreeColors (si->dpy, cmap, &pw->background, 1, 0L);
+ if (!(pw->button_foreground == black || pw->button_foreground == white))
+ XFreeColors (si->dpy, cmap, &pw->button_foreground, 1, 0L);
+ if (!(pw->button_background == black || pw->button_background == white))
+ XFreeColors (si->dpy, cmap, &pw->button_background, 1, 0L);
+ if (pw->passwd_foreground != black && pw->passwd_foreground != white)
+ XFreeColors (si->dpy, cmap, &pw->passwd_foreground, 1, 0L);
+ if (pw->passwd_background != black && pw->passwd_background != white)
+ XFreeColors (si->dpy, cmap, &pw->passwd_background, 1, 0L);
+ if (pw->thermo_foreground != black && pw->thermo_foreground != white)
+ XFreeColors (si->dpy, cmap, &pw->thermo_foreground, 1, 0L);
+ if (pw->thermo_background != black && pw->thermo_background != white)
+ XFreeColors (si->dpy, cmap, &pw->thermo_background, 1, 0L);
+ if (pw->shadow_top != black && pw->shadow_top != white)
+ XFreeColors (si->dpy, cmap, &pw->shadow_top, 1, 0L);
+ if (pw->shadow_bottom != black && pw->shadow_bottom != white)
+ XFreeColors (si->dpy, cmap, &pw->shadow_bottom, 1, 0L);
+
+ if (pw->logo_pixmap)
+ XFreePixmap (si->dpy, pw->logo_pixmap);
+ if (pw-> logo_clipmask)
+ XFreePixmap (si->dpy, pw->logo_clipmask);
+ if (pw->logo_pixels)
+ {
+ if (pw->logo_npixels)
+ XFreeColors (si->dpy, cmap, pw->logo_pixels, pw->logo_npixels, 0L);
+ free (pw->logo_pixels);
+ pw->logo_pixels = 0;
+ pw->logo_npixels = 0;
+ }
+
+ if (pw->save_under)
+ XFreePixmap (si->dpy, pw->save_under);
+
+ if (cmap)
+ XInstallColormap (si->dpy, cmap);
+
+ memset (pw, 0, sizeof(*pw));
+ free (pw);
+ si->pw_data = 0;
+}
+
+
+#if defined(HAVE_XF86MISCSETGRABKEYSSTATE) || defined(HAVE_XF86VMODE)
+
+static Bool error_handler_hit_p = False;
+
+static int
+ignore_all_errors_ehandler (Display *dpy, XErrorEvent *error)
+{
+ error_handler_hit_p = True;
+ return 0;
+}
+
+#endif /* HAVE_XF86MISCSETGRABKEYSSTATE || HAVE_XF86VMODE */
+
+
+#ifdef HAVE_XHPDISABLERESET
+/* This function enables and disables the C-Sh-Reset hot-key, which
+ normally resets the X server (logging out the logged-in user.)
+ We don't want random people to be able to do that while the
+ screen is locked.
+ */
+static void
+hp_lock_reset (saver_info *si, Bool lock_p)
+{
+ static Bool hp_locked_p = False;
+
+ /* Calls to XHPDisableReset and XHPEnableReset must be balanced,
+ or BadAccess errors occur. (It's ok for this to be global,
+ since it affects the whole machine, not just the current screen.)
+ */
+ if (hp_locked_p == lock_p)
+ return;
+
+ if (lock_p)
+ XHPDisableReset (si->dpy);
+ else
+ XHPEnableReset (si->dpy);
+ hp_locked_p = lock_p;
+}
+#endif /* HAVE_XHPDISABLERESET */
+
+
+#ifdef HAVE_XF86MISCSETGRABKEYSSTATE
+
+/* This function enables and disables the Ctrl-Alt-KP_star and
+ Ctrl-Alt-KP_slash hot-keys, which (in XFree86 4.2) break any
+ grabs and/or kill the grabbing client. That would effectively
+ unlock the screen, so we don't like that.
+
+ The Ctrl-Alt-KP_star and Ctrl-Alt-KP_slash hot-keys only exist
+ if AllowDeactivateGrabs and/or AllowClosedownGrabs are turned on
+ in XF86Config. I believe they are disabled by default.
+
+ This does not affect any other keys (specifically Ctrl-Alt-BS or
+ Ctrl-Alt-F1) but I wish it did. Maybe it will someday.
+ */
+static void
+xfree_lock_grab_smasher (saver_info *si, Bool lock_p)
+{
+ saver_preferences *p = &si->prefs;
+ int status;
+ int event, error;
+ XErrorHandler old_handler;
+
+ if (!XF86MiscQueryExtension(si->dpy, &event, &error))
+ return;
+
+ XSync (si->dpy, False);
+ error_handler_hit_p = False;
+ old_handler = XSetErrorHandler (ignore_all_errors_ehandler);
+ XSync (si->dpy, False);
+ status = XF86MiscSetGrabKeysState (si->dpy, !lock_p);
+ XSync (si->dpy, False);
+ if (error_handler_hit_p) status = 666;
+
+ if (!lock_p && status == MiscExtGrabStateAlready)
+ status = MiscExtGrabStateSuccess; /* shut up, consider this success */
+
+ if (p->verbose_p && status != MiscExtGrabStateSuccess)
+ fprintf (stderr, "%s: error: XF86MiscSetGrabKeysState(%d) returned %s\n",
+ blurb(), !lock_p,
+ (status == MiscExtGrabStateSuccess ? "MiscExtGrabStateSuccess" :
+ status == MiscExtGrabStateLocked ? "MiscExtGrabStateLocked" :
+ status == MiscExtGrabStateAlready ? "MiscExtGrabStateAlready" :
+ status == 666 ? "an X error" :
+ "unknown value"));
+
+ XSync (si->dpy, False);
+ XSetErrorHandler (old_handler);
+ XSync (si->dpy, False);
+}
+#endif /* HAVE_XF86MISCSETGRABKEYSSTATE */
+
+
+
+/* This function enables and disables the C-Alt-Plus and C-Alt-Minus
+ hot-keys, which normally change the resolution of the X server.
+ We don't want people to be able to switch the server resolution
+ while the screen is locked, because if they switch to a higher
+ resolution, it could cause part of the underlying desktop to become
+ exposed.
+ */
+#ifdef HAVE_XF86VMODE
+
+static void
+xfree_lock_mode_switch (saver_info *si, Bool lock_p)
+{
+ static Bool any_mode_locked_p = False;
+ saver_preferences *p = &si->prefs;
+ int screen;
+ int real_nscreens = ScreenCount (si->dpy);
+ int event, error;
+ Bool status;
+ XErrorHandler old_handler;
+
+ if (any_mode_locked_p == lock_p)
+ return;
+ if (!XF86VidModeQueryExtension (si->dpy, &event, &error))
+ return;
+
+ for (screen = 0; screen < real_nscreens; screen++)
+ {
+ XSync (si->dpy, False);
+ old_handler = XSetErrorHandler (ignore_all_errors_ehandler);
+ error_handler_hit_p = False;
+ status = XF86VidModeLockModeSwitch (si->dpy, screen, lock_p);
+ XSync (si->dpy, False);
+ XSetErrorHandler (old_handler);
+ if (error_handler_hit_p) status = False;
+
+ if (status)
+ any_mode_locked_p = lock_p;
+
+ if (!status && (p->verbose_p || !lock_p))
+ /* Only print this when verbose, or when we locked but can't unlock.
+ I tried printing this message whenever it comes up, but
+ mode-locking always fails if DontZoom is set in XF86Config. */
+ fprintf (stderr, "%s: %d: unable to %s mode switching!\n",
+ blurb(), screen, (lock_p ? "lock" : "unlock"));
+ else if (p->verbose_p)
+ fprintf (stderr, "%s: %d: %s mode switching.\n",
+ blurb(), screen, (lock_p ? "locked" : "unlocked"));
+ }
+}
+#endif /* HAVE_XF86VMODE */
+
+
+/* If the viewport has been scrolled since the screen was blanked,
+ then scroll it back to where it belongs. This function only exists
+ to patch over a very brief race condition.
+ */
+static void
+undo_vp_motion (saver_info *si)
+{
+#ifdef HAVE_XF86VMODE
+ saver_preferences *p = &si->prefs;
+ int screen;
+ int real_nscreens = ScreenCount (si->dpy);
+ int event, error;
+
+ if (!XF86VidModeQueryExtension (si->dpy, &event, &error))
+ return;
+
+ for (screen = 0; screen < real_nscreens; screen++)
+ {
+ saver_screen_info *ssi = &si->screens[screen];
+ int x, y;
+ Bool status;
+
+ if (ssi->blank_vp_x == -1 && ssi->blank_vp_y == -1)
+ break;
+ if (!XF86VidModeGetViewPort (si->dpy, screen, &x, &y))
+ return;
+ if (ssi->blank_vp_x == x && ssi->blank_vp_y == y)
+ return;
+
+ /* We're going to move the viewport. The mouse has just been grabbed on
+ (and constrained to, thus warped to) the password window, so it is no
+ longer near the edge of the screen. However, wait a bit anyway, just
+ to make sure the server drains its last motion event, so that the
+ screen doesn't continue to scroll after we've reset the viewport.
+ */
+ XSync (si->dpy, False);
+ usleep (250000); /* 1/4 second */
+ XSync (si->dpy, False);
+
+ status = XF86VidModeSetViewPort (si->dpy, screen,
+ ssi->blank_vp_x, ssi->blank_vp_y);
+
+ if (!status)
+ fprintf (stderr,
+ "%s: %d: unable to move vp from (%d,%d) back to (%d,%d)!\n",
+ blurb(), screen, x, y, ssi->blank_vp_x, ssi->blank_vp_y);
+ else if (p->verbose_p)
+ fprintf (stderr,
+ "%s: %d: vp moved to (%d,%d); moved it back to (%d,%d).\n",
+ blurb(), screen, x, y, ssi->blank_vp_x, ssi->blank_vp_y);
+ }
+#endif /* HAVE_XF86VMODE */
+}
+
+
+
+/* Interactions
+ */
+
+static void
+passwd_animate_timer (XtPointer closure, XtIntervalId *id)
+{
+ saver_info *si = (saver_info *) closure;
+ int tick = 166;
+ passwd_dialog_data *pw = si->pw_data;
+
+ if (!pw) return;
+
+ pw->ratio -= (1.0 / ((double) si->prefs.passwd_timeout / (double) tick));
+ if (pw->ratio < 0)
+ {
+ pw->ratio = 0;
+ if (si->unlock_state == ul_read)
+ si->unlock_state = ul_time;
+ }
+
+ update_passwd_window (si, 0, pw->ratio);
+
+ if (si->unlock_state == ul_read)
+ pw->timer = XtAppAddTimeOut (si->app, tick, passwd_animate_timer,
+ (XtPointer) si);
+ else
+ pw->timer = 0;
+
+ idle_timer ((XtPointer) si, 0);
+}
+
+
+static XComposeStatus *compose_status;
+
+static void
+handle_login_button (saver_info *si, XEvent *event)
+{
+ saver_preferences *p = &si->prefs;
+ Bool mouse_in_box = False;
+ Bool hit_p = False;
+ passwd_dialog_data *pw = si->pw_data;
+ saver_screen_info *ssi = pw->prompt_screen;
+
+ if (! pw->login_button_enabled_p)
+ return;
+
+ mouse_in_box =
+ (event->xbutton.x >= pw->login_button_x &&
+ event->xbutton.x <= pw->login_button_x + pw->login_button_width &&
+ event->xbutton.y >= pw->login_button_y &&
+ event->xbutton.y <= pw->login_button_y + pw->login_button_height);
+
+ if (ButtonRelease == event->xany.type &&
+ pw->login_button_down_p &&
+ mouse_in_box)
+ {
+ /* Only allow them to press the button once: don't want to
+ accidentally launch a dozen gdm choosers if the machine
+ is being slow.
+ */
+ hit_p = True;
+ pw->login_button_enabled_p = False;
+ }
+
+ pw->login_button_down_p = (mouse_in_box &&
+ ButtonRelease != event->xany.type);
+
+ update_passwd_window (si, 0, pw->ratio);
+
+ if (hit_p)
+ fork_and_exec (ssi, p->new_login_command);
+}
+
+
+static void
+handle_unlock_button (saver_info *si, XEvent *event)
+{
+ Bool mouse_in_box = False;
+ passwd_dialog_data *pw = si->pw_data;
+
+ mouse_in_box =
+ (event->xbutton.x >= pw->unlock_button_x &&
+ event->xbutton.x <= pw->unlock_button_x + pw->unlock_button_width &&
+ event->xbutton.y >= pw->unlock_button_y &&
+ event->xbutton.y <= pw->unlock_button_y + pw->unlock_button_height);
+
+ if (ButtonRelease == event->xany.type &&
+ pw->unlock_button_down_p &&
+ mouse_in_box)
+ finished_typing_passwd (si, pw);
+
+ pw->unlock_button_down_p = (mouse_in_box &&
+ ButtonRelease != event->xany.type);
+}
+
+
+static void
+finished_typing_passwd (saver_info *si, passwd_dialog_data *pw)
+{
+ if (si->unlock_state == ul_read)
+ {
+ update_passwd_window (si, "Checking...", pw->ratio);
+ XSync (si->dpy, False);
+
+ si->unlock_state = ul_finished;
+ update_passwd_window (si, "", pw->ratio);
+ }
+}
+
+static void
+handle_passwd_key (saver_info *si, XKeyEvent *event)
+{
+ passwd_dialog_data *pw = si->pw_data;
+ unsigned char decoded [MAX_BYTES_PER_CHAR * 10]; /* leave some slack */
+ KeySym keysym = 0;
+
+ /* XLookupString may return more than one character via XRebindKeysym;
+ and on some systems it returns multi-byte UTF-8 characters (contrary
+ to its documentation, which says it returns only Latin1.)
+
+ It seems to only do so, however, if setlocale() has been called.
+ See the code inside ENABLE_NLS in xscreensaver.c.
+ */
+ int decoded_size = XLookupString (event, (char *)decoded, sizeof(decoded),
+ &keysym, compose_status);
+
+#if 0
+ {
+ const char *ks = XKeysymToString (keysym);
+ int i;
+ fprintf(stderr, "## %-12s\t=> %d\t", (ks ? ks : "(null)"), decoded_size);
+ for (i = 0; i < decoded_size; i++)
+ fprintf(stderr, "%c", decoded[i]);
+ fprintf(stderr, "\t");
+ for (i = 0; i < decoded_size; i++)
+ fprintf(stderr, "\\%03o", ((unsigned char *)decoded)[i]);
+ fprintf(stderr, "\n");
+ }
+#endif
+
+ if (decoded_size > MAX_BYTES_PER_CHAR)
+ {
+ /* The multi-byte character returned is too large. */
+ XBell (si->dpy, 0);
+ return;
+ }
+
+ decoded[decoded_size] = 0;
+ pw->passwd_changed_p = True;
+
+ /* Add 10% to the time remaining every time a key is pressed. */
+ pw->ratio += 0.1;
+ if (pw->ratio > 1) pw->ratio = 1;
+
+ if (decoded_size == 1) /* Handle single-char commands */
+ {
+ switch (*decoded)
+ {
+ case '\010': case '\177': /* Backspace */
+ {
+ /* kludgey way to get the number of "logical" characters. */
+ int nchars = strlen (pw->typed_passwd_char_size);
+ int nbytes = strlen (pw->typed_passwd);
+ if (nbytes <= 0)
+ XBell (si->dpy, 0);
+ else
+ {
+ int i;
+ for (i = pw->typed_passwd_char_size[nchars-1]; i >= 0; i--)
+ {
+ if (nbytes < 0) abort();
+ pw->typed_passwd[nbytes--] = 0;
+ }
+ pw->typed_passwd_char_size[nchars-1] = 0;
+ }
+ }
+ break;
+
+ case '\012': case '\015': /* Enter */
+ finished_typing_passwd (si, pw);
+ break;
+
+ case '\033': /* Escape */
+ si->unlock_state = ul_cancel;
+ break;
+
+ case '\025': case '\030': /* Erase line */
+ memset (pw->typed_passwd, 0, sizeof (pw->typed_passwd));
+ memset (pw->typed_passwd_char_size, 0,
+ sizeof (pw->typed_passwd_char_size));
+ break;
+
+ default:
+ if (*decoded < ' ' && *decoded != '\t') /* Other ctrl char */
+ XBell (si->dpy, 0);
+ else
+ goto SELF_INSERT;
+ break;
+ }
+ }
+ else
+ {
+ int nbytes, nchars;
+ SELF_INSERT:
+ nbytes = strlen (pw->typed_passwd);
+ nchars = strlen (pw->typed_passwd_char_size);
+ if (nchars + 1 >= sizeof (pw->typed_passwd_char_size)-1 ||
+ nbytes + decoded_size >= sizeof (pw->typed_passwd)-1) /* overflow */
+ XBell (si->dpy, 0);
+ else
+ {
+ pw->typed_passwd_char_size[nchars] = decoded_size;
+ pw->typed_passwd_char_size[nchars+1] = 0;
+ memcpy (pw->typed_passwd + nbytes, decoded, decoded_size);
+ pw->typed_passwd[nbytes + decoded_size] = 0;
+ }
+ }
+
+ if (pw->echo_input)
+ {
+ /* If the input is wider than the text box, only show the last portion,
+ to simulate a horizontally-scrolling text field. */
+ int chars_in_pwfield = (pw->passwd_field_width /
+ pw->passwd_font->max_bounds.width);
+ const char *output = pw->typed_passwd;
+ if (strlen(output) > chars_in_pwfield)
+ output += (strlen(output) - chars_in_pwfield);
+ update_passwd_window (si, output, pw->ratio);
+ }
+ else if (pw->show_stars_p)
+ {
+ int nchars = strlen (pw->typed_passwd_char_size);
+ char *stars = 0;
+ stars = (char *) malloc(nchars + 1);
+ memset (stars, '*', nchars);
+ stars[nchars] = 0;
+ update_passwd_window (si, stars, pw->ratio);
+ free (stars);
+ }
+ else
+ {
+ update_passwd_window (si, "", pw->ratio);
+ }
+}
+
+
+static void
+passwd_event_loop (saver_info *si)
+{
+ saver_preferences *p = &si->prefs;
+ char *msg = 0;
+
+ /* We have to go through this union bullshit because gcc-4.4.0 has
+ stricter struct-aliasing rules. Without this, the optimizer
+ can fuck things up.
+ */
+ union {
+ XEvent x_event;
+# ifdef HAVE_RANDR
+ XRRScreenChangeNotifyEvent xrr_event;
+# endif /* HAVE_RANDR */
+ } event;
+
+ passwd_animate_timer ((XtPointer) si, 0);
+ reset_watchdog_timer (si, False); /* Disable watchdog while dialog up */
+
+ while (si->unlock_state == ul_read)
+ {
+ XtAppNextEvent (si->app, &event.x_event);
+
+#ifdef HAVE_RANDR
+ if (si->using_randr_extension &&
+ (event.x_event.type ==
+ (si->randr_event_number + RRScreenChangeNotify)))
+ {
+ /* The Resize and Rotate extension sends an event when the
+ size, rotation, or refresh rate of any screen has changed. */
+
+ if (p->verbose_p)
+ {
+ /* XRRRootToScreen is in Xrandr.h 1.4, 2001/06/07 */
+ int screen = XRRRootToScreen(si->dpy, event.xrr_event.window);
+ fprintf (stderr, "%s: %d: screen change event received\n",
+ blurb(), screen);
+ }
+
+#ifdef RRScreenChangeNotifyMask
+ /* Inform Xlib that it's ok to update its data structures. */
+ XRRUpdateConfiguration(&event.x_event); /* Xrandr.h 1.9, 2002/09/29*/
+#endif /* RRScreenChangeNotifyMask */
+
+ /* Resize the existing xscreensaver windows and cached ssi data. */
+ if (update_screen_layout (si))
+ {
+ if (p->verbose_p)
+ {
+ fprintf (stderr, "%s: new layout:\n", blurb());
+ describe_monitor_layout (si);
+ }
+ resize_screensaver_window (si);
+ }
+ }
+ else
+#endif /* HAVE_RANDR */
+
+ if (event.x_event.xany.window == si->passwd_dialog &&
+ event.x_event.xany.type == Expose)
+ draw_passwd_window (si);
+ else if (event.x_event.xany.type == KeyPress)
+ {
+ handle_passwd_key (si, &event.x_event.xkey);
+ si->pw_data->caps_p = (event.x_event.xkey.state & LockMask);
+ }
+ else if (event.x_event.xany.type == ButtonPress ||
+ event.x_event.xany.type == ButtonRelease)
+ {
+ si->pw_data->button_state_changed_p = True;
+ handle_unlock_button (si, &event.x_event);
+ if (si->pw_data->login_button_p)
+ handle_login_button (si, &event.x_event);
+ }
+ else
+ XtDispatchEvent (&event.x_event);
+ }
+
+ switch (si->unlock_state)
+ {
+ case ul_cancel: msg = ""; break;
+ case ul_time: msg = "Timed out!"; break;
+ case ul_finished: msg = "Checking..."; break;
+ default: msg = 0; break;
+ }
+
+ if (p->verbose_p)
+ switch (si->unlock_state) {
+ case ul_cancel:
+ fprintf (stderr, "%s: input cancelled.\n", blurb()); break;
+ case ul_time:
+ fprintf (stderr, "%s: input timed out.\n", blurb()); break;
+ case ul_finished:
+ fprintf (stderr, "%s: input finished.\n", blurb()); break;
+ default: break;
+ }
+
+ if (msg)
+ {
+ si->pw_data->i_beam = 0;
+ update_passwd_window (si, msg, 0.0);
+ XSync (si->dpy, False);
+
+ /* Swallow all pending KeyPress/KeyRelease events. */
+ {
+ XEvent e;
+ while (XCheckMaskEvent (si->dpy, KeyPressMask|KeyReleaseMask, &e))
+ ;
+ }
+ }
+
+ reset_watchdog_timer (si, True); /* Re-enable watchdog */
+}
+
+
+static void
+handle_typeahead (saver_info *si)
+{
+ passwd_dialog_data *pw = si->pw_data;
+ int i;
+ if (!si->unlock_typeahead)
+ return;
+
+ pw->passwd_changed_p = True;
+
+ i = strlen (si->unlock_typeahead);
+ if (i >= sizeof(pw->typed_passwd) - 1)
+ i = sizeof(pw->typed_passwd) - 1;
+
+ memcpy (pw->typed_passwd, si->unlock_typeahead, i);
+ pw->typed_passwd [i] = 0;
+ {
+ int j;
+ char *c = pw->typed_passwd_char_size;
+ for (j = 0; j < i; j++)
+ *c++ = 1;
+ *c = 0;
+ }
+
+ memset (si->unlock_typeahead, '*', strlen(si->unlock_typeahead));
+ si->unlock_typeahead[i] = 0;
+ update_passwd_window (si, si->unlock_typeahead, pw->ratio);
+
+ free (si->unlock_typeahead);
+ si->unlock_typeahead = 0;
+}
+
+
+/**
+ * Returns a copy of the input string with trailing whitespace removed.
+ * Whitespace is anything considered so by isspace().
+ * It is safe to call this with NULL, in which case NULL will be returned.
+ * The returned string (if not NULL) should be freed by the caller with free().
+ */
+static char *
+remove_trailing_whitespace(const char *str)
+{
+ size_t len;
+ char *newstr, *chr;
+
+ if (!str)
+ return NULL;
+
+ len = strlen(str);
+
+ newstr = malloc(len + 1);
+ if (!newstr)
+ return NULL;
+
+ (void) strcpy(newstr, str);
+ chr = newstr + len;
+ while (isspace(*--chr) && chr >= newstr)
+ *chr = '\0';
+
+ return newstr;
+}
+
+
+/*
+ * The authentication conversation function.
+ * Like a PAM conversation function, this accepts multiple messages in a single
+ * round. It then splits them into individual messages for display on the
+ * passwd dialog. A message sequence of info or error followed by a prompt will
+ * be reduced into a single dialog window.
+ *
+ * Returns 0 on success or -1 if some problem occurred (cancelled, OOM, etc.)
+ */
+int
+gui_auth_conv(int num_msg,
+ const struct auth_message auth_msgs[],
+ struct auth_response **resp,
+ saver_info *si)
+{
+ int i;
+ const char *info_msg, *prompt;
+ struct auth_response *responses;
+
+ if (si->unlock_state == ul_cancel ||
+ si->unlock_state == ul_time)
+ /* If we've already cancelled or timed out in this PAM conversation,
+ don't prompt again even if PAM asks us to! */
+ return -1;
+
+ if (!(responses = calloc(num_msg, sizeof(struct auth_response))))
+ goto fail;
+
+ for (i = 0; i < num_msg; ++i)
+ {
+ info_msg = prompt = NULL;
+
+ /* See if there is a following message that can be shown at the same
+ * time */
+ if (auth_msgs[i].type == AUTH_MSGTYPE_INFO
+ && i+1 < num_msg
+ && ( auth_msgs[i+1].type == AUTH_MSGTYPE_PROMPT_NOECHO
+ || auth_msgs[i+1].type == AUTH_MSGTYPE_PROMPT_ECHO)
+ )
+ {
+ info_msg = auth_msgs[i].msg;
+ prompt = auth_msgs[++i].msg;
+ }
+ else
+ {
+ if ( auth_msgs[i].type == AUTH_MSGTYPE_INFO
+ || auth_msgs[i].type == AUTH_MSGTYPE_ERROR)
+ info_msg = auth_msgs[i].msg;
+ else
+ prompt = auth_msgs[i].msg;
+ }
+
+ {
+ char *info_msg_trimmed, *prompt_trimmed;
+
+ /* Trailing whitespace looks bad in a GUI */
+ info_msg_trimmed = remove_trailing_whitespace(info_msg);
+ prompt_trimmed = remove_trailing_whitespace(prompt);
+
+ if (make_passwd_window(si, info_msg_trimmed, prompt_trimmed,
+ auth_msgs[i].type == AUTH_MSGTYPE_PROMPT_ECHO
+ ? True : False)
+ < 0)
+ goto fail;
+
+ if (info_msg_trimmed)
+ free(info_msg_trimmed);
+
+ if (prompt_trimmed)
+ free(prompt_trimmed);
+ }
+
+ compose_status = calloc (1, sizeof (*compose_status));
+ if (!compose_status)
+ goto fail;
+
+ si->unlock_state = ul_read;
+
+ handle_typeahead (si);
+ passwd_event_loop (si);
+
+ if (si->unlock_state == ul_cancel)
+ goto fail;
+
+ responses[i].response = strdup(si->pw_data->typed_passwd);
+
+ /* Cache the first response to a PROMPT_NOECHO to save prompting for
+ * each auth mechanism. */
+ if (si->cached_passwd == NULL &&
+ auth_msgs[i].type == AUTH_MSGTYPE_PROMPT_NOECHO)
+ si->cached_passwd = strdup(responses[i].response);
+
+ free (compose_status);
+ compose_status = 0;
+ }
+
+ *resp = responses;
+
+ return (si->unlock_state == ul_finished) ? 0 : -1;
+
+fail:
+ if (compose_status)
+ free (compose_status);
+ compose_status = 0;
+
+ if (responses)
+ {
+ for (i = 0; i < num_msg; ++i)
+ if (responses[i].response)
+ free (responses[i].response);
+ free (responses);
+ }
+
+ return -1;
+}
+
+
+void
+auth_finished_cb (saver_info *si)
+{
+ char buf[1024];
+ const char *s;
+
+ /* If we have something to say, put the dialog back up for a few seconds
+ to display it. Otherwise, don't bother.
+ */
+
+ if (si->unlock_state == ul_fail && /* failed with caps lock on */
+ si->pw_data && si->pw_data->caps_p)
+ s = "Authentication failed (Caps Lock?)";
+ else if (si->unlock_state == ul_fail) /* failed without caps lock */
+ s = "Authentication failed!";
+ else if (si->unlock_state == ul_success && /* good, but report failures */
+ si->unlock_failures > 0)
+ {
+ if (si->unlock_failures == 1)
+ s = "There has been\n1 failed login attempt.";
+ else
+ {
+ sprintf (buf, "There have been\n%d failed login attempts.",
+ si->unlock_failures);
+ s = buf;
+ }
+ si->unlock_failures = 0;
+
+ /* ignore failures if they all were too recent */
+ if (time((time_t *) 0) - si->unlock_failure_time
+ < si->prefs.auth_warning_slack)
+ goto END;
+ }
+ else /* good, with no failures, */
+ goto END; /* or timeout, or cancel. */
+
+ make_passwd_window (si, s, NULL, True);
+ XSync (si->dpy, False);
+
+ {
+ int secs = 4;
+ time_t start = time ((time_t *) 0);
+ XEvent event;
+ while (time ((time_t *) 0) < start + secs)
+ if (XPending (si->dpy))
+ {
+ XNextEvent (si->dpy, &event);
+ if (event.xany.window == si->passwd_dialog &&
+ event.xany.type == Expose)
+ draw_passwd_window (si);
+ else if (event.xany.type == ButtonPress ||
+ event.xany.type == KeyPress)
+ break;
+ XSync (si->dpy, False);
+ }
+ else
+ usleep (250000); /* 1/4 second */
+ }
+
+ END:
+ if (si->pw_data)
+ destroy_passwd_window (si);
+}
+
+
+Bool
+unlock_p (saver_info *si)
+{
+ saver_preferences *p = &si->prefs;
+
+ if (!si->unlock_cb)
+ {
+ fprintf(stderr, "%s: Error: no unlock function specified!\n", blurb());
+ return False;
+ }
+
+ raise_window (si, True, True, True);
+
+ xss_authenticate(si, p->verbose_p);
+
+ return (si->unlock_state == ul_success);
+}
+
+
+void
+set_locked_p (saver_info *si, Bool locked_p)
+{
+ si->locked_p = locked_p;
+
+#ifdef HAVE_XHPDISABLERESET
+ hp_lock_reset (si, locked_p); /* turn off/on C-Sh-Reset */
+#endif
+#ifdef HAVE_XF86VMODE
+ xfree_lock_mode_switch (si, locked_p); /* turn off/on C-Alt-Plus */
+#endif
+#ifdef HAVE_XF86MISCSETGRABKEYSSTATE
+ xfree_lock_grab_smasher (si, locked_p); /* turn off/on C-Alt-KP-*,/ */
+#endif
+
+ store_saver_status (si); /* store locked-p */
+}
+
+
+#else /* NO_LOCKING -- whole file */
+
+void
+set_locked_p (saver_info *si, Bool locked_p)
+{
+ if (locked_p) abort();
+}
+
+#endif /* !NO_LOCKING */
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-05-18 03:08:45 +0200