PolytreeDE
/
i3lock-color
mirror of https://github.com/Raymo111/i3lock-color.git
1
0
Fork 0
Code Releases Activity
i3lock-color/i3lock.c

1997 lines
73 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* vim:ts=4:sw=4:expandtab
*
* © 2010 Michael Stapelberg
*
* See LICENSE for licensing information
*
*/
#include <config.h>
#include <pthread.h>
#include <math.h>
#include <stdio.h>
#include <locale.h>
#include <stdlib.h>
#include <pwd.h>
#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include <stdbool.h>
#include <stdint.h>
#include <xcb/xcb.h>
#include <xcb/xkb.h>
#include <err.h>
#include <errno.h>
#include <assert.h>
#ifdef __OpenBSD__
#include <bsd_auth.h>
#else
#include <security/pam_appl.h>
#endif
#include <getopt.h>
#include <string.h>
#include <ev.h>
#include <sys/mman.h>
#include <xkbcommon/xkbcommon.h>
#if XKBCOMPOSE == 1
#include <xkbcommon/xkbcommon-compose.h>
#endif
#include <xkbcommon/xkbcommon-x11.h>
#include <cairo.h>
#include <cairo/cairo-xcb.h>
#ifdef __OpenBSD__
#include <strings.h> /* explicit_bzero(3) */
#endif
#include <xcb/xcb_aux.h>
#include <xcb/randr.h>
#include "i3lock.h"
#include "xcb.h"
#include "cursors.h"
#include "unlock_indicator.h"
#include "randr.h"
#include "blur.h"
#include "jpg.h"
#include "fonts.h"
#define TSTAMP_N_SECS(n) (n * 1.0)
#define TSTAMP_N_MINS(n) (60 * TSTAMP_N_SECS(n))
#define START_TIMER(timer_obj, timeout, callback) \
timer_obj = start_timer(timer_obj, timeout, callback)
#define STOP_TIMER(timer_obj) \
timer_obj = stop_timer(timer_obj)
typedef void (*ev_callback_t)(EV_P_ ev_timer *w, int revents);
static void input_done(void);
char color[7] = "ffffff";
/* options for unlock indicator colors */
char insidevercolor[9] = "006effbf";
char insidewrongcolor[9] = "fa0000bf";
char insidecolor[9] = "000000bf";
char ringvercolor[9] = "3300faff";
char ringwrongcolor[9] = "7d3300ff";
char ringcolor[9] = "337d00ff";
char linecolor[9] = "000000ff";
char verifcolor[9] = "000000ff";
char wrongcolor[9] = "000000ff";
char layoutcolor[9] = "000000ff";
char timecolor[9] = "000000ff";
char datecolor[9] = "000000ff";
char keyhlcolor[9] = "33db00ff";
char bshlcolor[9] = "db3300ff";
char separatorcolor[9] = "000000ff";
/* int defining which display the lock indicator should be shown on. If -1, then show on all displays.*/
int screen_number = 0;
/* default is to use the supplied line color, 1 will be ring color, 2 will be to use the inside color for ver/wrong/etc */
int internal_line_source = 0;
/* bool for showing the clock; why am I commenting this? */
bool show_clock = false;
bool always_show_clock = false;
bool show_indicator = false;
float refresh_rate = 1.0;
/* there's some issues with compositing - upstream removed support for this, but we'll allow people to supply an arg to enable it */
bool composite = false;
/* time formatter strings for date/time
I picked 32-length char arrays because some people might want really funky time formatters.
Who am I to judge?
*/
/*
* 0 = center
* 1 = left
* 2 = right
*/
int verif_align = 0;
int wrong_align = 0;
int time_align = 0;
int date_align = 0;
int layout_align = 0;
int modif_align = 0;
char time_format[32] = "%H:%M:%S\0";
char date_format[32] = "%A, %m %Y\0";
char verif_font[32] = "sans-serif\0";
char wrong_font[32] = "sans-serif\0";
char layout_font[32] = "sans-serif\0";
char time_font[32] = "sans-serif\0";
char date_font[32] = "sans-serif\0";
char* fonts[5] = {
verif_font,
wrong_font,
layout_font,
time_font,
date_font
};
char ind_x_expr[32] = "x + (w / 2)\0";
char ind_y_expr[32] = "y + (h / 2)\0";
char time_x_expr[32] = "ix\0";
char time_y_expr[32] = "iy\0";
char date_x_expr[32] = "tx\0";
char date_y_expr[32] = "ty+30\0";
char layout_x_expr[32] = "dx\0";
char layout_y_expr[32] = "dy+30\0";
char status_x_expr[32] = "ix\0";
char status_y_expr[32] = "iy\0";
char modif_x_expr[32] = "ix\0";
char modif_y_expr[32] = "iy+28\0";
double time_size = 32.0;
double date_size = 14.0;
double verif_size = 28.0;
double wrong_size = 28.0;
double modifier_size = 14.0;
double layout_size = 14.0;
double circle_radius = 90.0;
double ring_width = 7.0;
char* verif_text = "verifying…";
char* wrong_text = "wrong!";
int keylayout_mode = -1;
char* layout_text = NULL;
/* opts for blurring */
bool blur = false;
bool step_blur = false;
int blur_sigma = 5;
uint32_t last_resolution[2];
xcb_window_t win;
static xcb_cursor_t cursor;
#ifndef __OpenBSD__
static pam_handle_t *pam_handle;
#endif
int input_position = 0;
/* Holds the password you enter (in UTF-8). */
static char password[512];
static bool beep = false;
bool debug_mode = false;
bool unlock_indicator = true;
char *modifier_string = NULL;
static bool dont_fork = false;
struct ev_loop *main_loop;
static struct ev_timer *clear_auth_wrong_timeout;
static struct ev_timer *clear_indicator_timeout;
static struct ev_timer *discard_passwd_timeout;
extern unlock_state_t unlock_state;
extern auth_state_t auth_state;
int failed_attempts = 0;
bool show_failed_attempts = false;
bool retry_verification = false;
static struct xkb_state *xkb_state;
static struct xkb_context *xkb_context;
static struct xkb_keymap *xkb_keymap;
#if XKBCOMPOSE == 1
static struct xkb_compose_table *xkb_compose_table;
static struct xkb_compose_state *xkb_compose_state;
#endif
static uint8_t xkb_base_event;
static uint8_t xkb_base_error;
static int randr_base = -1;
cairo_surface_t *img = NULL;
cairo_surface_t *blur_img = NULL;
bool tile = false;
bool ignore_empty_password = false;
bool skip_repeated_empty_password = false;
// for the rendering thread, so we can clean it up
pthread_t draw_thread;
// main thread still sometimes calls redraw()
// allow you to disable. handy if you use bar with lots of crap.
bool redraw_thread = false;
#define BAR_VERT 0
#define BAR_FLAT 1
#define BAR_DEFAULT 0
#define BAR_REVERSED 1
#define BAR_BIDIRECTIONAL 2
// experimental bar stuff
bool bar_enabled = false;
double *bar_heights = NULL;
double bar_step = 15;
double bar_base_height = 25;
double bar_periodic_step = 15;
double max_bar_height = 25;
int num_bars = 0;
int bar_width = 150;
int bar_orientation = BAR_FLAT;
char bar_base_color[9] = "000000ff";
char bar_expr[32] = "0\0";
bool bar_bidirectional = false;
bool bar_reversed = false;
/* isutf, u8_dec © 2005 Jeff Bezanson, public domain */
#define isutf(c) (((c)&0xC0) != 0x80)
/*
* Decrements i to point to the previous unicode glyph
*
*/
void u8_dec(char *s, int *i) {
(void)(isutf(s[--(*i)]) || isutf(s[--(*i)]) || isutf(s[--(*i)]) || --(*i));
}
/*
* fetches the keylayout name
* -1 (do not)
* arg: 0 (show full string returned)
* 1 (show the text, sans parenthesis)
* 2 (show just what's in the parenthesis)
*
* credit to the XKB/xcb implementation (no libx11) from https://gist.github.com/bluetech/6061368
* docs are really sparse, so finding some random implementation was nice
*/
char* get_keylayoutname(int mode, xcb_connection_t* conn) {
if (mode < 0 || mode > 2) return NULL;
char* newans = NULL, *answer = xcb_get_key_group_names(conn);
DEBUG("keylayout answer is: [%s]\n", answer);
switch (mode) {
case 1:
// truncate the string at the first parens
for(int i = 0; answer[i] != '\0'; ++i) {
if (answer[i] == '(') {
if (i != 0 && answer[i - 1] == ' ') {
answer[i - 1] = '\0';
break;
} else {
answer[i] = '\0';
break;
}
}
}
break;
case 2:
for(int i = 0; answer[i] != '\0'; ++i) {
if (answer[i] == '(') {
newans = &answer[i + 1];
} else if (answer[i] == ')' && newans != NULL) {
answer[i] = '\0';
break;
}
}
if (newans != NULL)
answer = newans;
break;
case 0:
// fall through
default:
break;
}
DEBUG("answer after mode parsing: [%s]\n", answer);
// Free symbolic names structures
return answer;
}
/*
* Loads the XKB keymap from the X11 server and feeds it to xkbcommon.
* Necessary so that we can properly let xkbcommon track the keyboard state and
* translate keypresses to utf-8.
*
*/
static bool load_keymap(void) {
if (xkb_context == NULL) {
if ((xkb_context = xkb_context_new(0)) == NULL) {
fprintf(stderr, "[i3lock] could not create xkbcommon context\n");
return false;
}
}
xkb_keymap_unref(xkb_keymap);
int32_t device_id = xkb_x11_get_core_keyboard_device_id(conn);
DEBUG("device = %d\n", device_id);
if ((xkb_keymap = xkb_x11_keymap_new_from_device(xkb_context, conn, device_id, 0)) == NULL) {
fprintf(stderr, "[i3lock] xkb_x11_keymap_new_from_device failed\n");
return false;
}
struct xkb_state *new_state =
xkb_x11_state_new_from_device(xkb_keymap, conn, device_id);
if (new_state == NULL) {
fprintf(stderr, "[i3lock] xkb_x11_state_new_from_device failed\n");
return false;
}
xkb_state_unref(xkb_state);
xkb_state = new_state;
return true;
}
#if XKBCOMPOSE == 1
/*
* Loads the XKB compose table from the given locale.
*
*/
static bool load_compose_table(const char *locale) {
xkb_compose_table_unref(xkb_compose_table);
if ((xkb_compose_table = xkb_compose_table_new_from_locale(xkb_context, locale, 0)) == NULL) {
fprintf(stderr, "[i3lock] xkb_compose_table_new_from_locale failed\n");
return false;
}
struct xkb_compose_state *new_compose_state = xkb_compose_state_new(xkb_compose_table, 0);
if (new_compose_state == NULL) {
fprintf(stderr, "[i3lock] xkb_compose_state_new failed\n");
return false;
}
xkb_compose_state_unref(xkb_compose_state);
xkb_compose_state = new_compose_state;
return true;
}
#endif /* XKBCOMPOSE */
/*
* Clears the memory which stored the password to be a bit safer against
* cold-boot attacks.
*
*/
static void clear_password_memory(void) {
#ifdef __OpenBSD__
/* Use explicit_bzero(3) which was explicitly designed not to be
* optimized out by the compiler. */
explicit_bzero(password, strlen(password));
#else
/* A volatile pointer to the password buffer to prevent the compiler from
* optimizing this out. */
volatile char *vpassword = password;
for (size_t c = 0; c < sizeof(password); c++)
/* We store a non-random pattern which consists of the (irrelevant)
* index plus (!) the value of the beep variable. This prevents the
* compiler from optimizing the calls away, since the value of 'beep'
* is not known at compile-time. */
vpassword[c] = c + (int)beep;
#endif
}
ev_timer *start_timer(ev_timer *timer_obj, ev_tstamp timeout, ev_callback_t callback) {
if (timer_obj) {
ev_timer_stop(main_loop, timer_obj);
ev_timer_set(timer_obj, timeout, 0.);
ev_timer_start(main_loop, timer_obj);
} else {
/* When there is no memory, we just don’t have a timeout. We cannot
* exit() here, since that would effectively unlock the screen. */
timer_obj = calloc(sizeof(struct ev_timer), 1);
if (timer_obj) {
ev_timer_init(timer_obj, callback, timeout, 0.);
ev_timer_start(main_loop, timer_obj);
}
}
return timer_obj;
}
ev_timer *stop_timer(ev_timer *timer_obj) {
if (timer_obj) {
ev_timer_stop(main_loop, timer_obj);
free(timer_obj);
}
return NULL;
}
/*
* Neccessary calls after ending input via enter or others
*
*/
static void finish_input(void) {
password[input_position] = '\0';
unlock_state = STATE_KEY_PRESSED;
redraw_screen();
input_done();
}
/*
* Resets auth_state to STATE_AUTH_IDLE 2 seconds after an unsuccessful
* authentication event.
*
*/
static void clear_auth_wrong(EV_P_ ev_timer *w, int revents) {
DEBUG("clearing auth wrong\n");
auth_state = STATE_AUTH_IDLE;
redraw_screen();
/* Clear modifier string. */
if (modifier_string != NULL) {
free(modifier_string);
modifier_string = NULL;
}
/* Now free this timeout. */
STOP_TIMER(clear_auth_wrong_timeout);
/* retry with input done during auth verification */
if (retry_verification) {
retry_verification = false;
finish_input();
}
}
static void clear_indicator_cb(EV_P_ ev_timer *w, int revents) {
clear_indicator();
STOP_TIMER(clear_indicator_timeout);
}
static void clear_input(void) {
input_position = 0;
clear_password_memory();
password[input_position] = '\0';
}
static void discard_passwd_cb(EV_P_ ev_timer *w, int revents) {
clear_input();
STOP_TIMER(discard_passwd_timeout);
}
static void input_done(void) {
STOP_TIMER(clear_auth_wrong_timeout);
auth_state = STATE_AUTH_VERIFY;
unlock_state = STATE_STARTED;
redraw_screen();
#ifdef __OpenBSD__
struct passwd *pw;
if (!(pw = getpwuid(getuid())))
errx(1, "unknown uid %u.", getuid());
if (auth_userokay(pw->pw_name, NULL, NULL, password) != 0) {
DEBUG("successfully authenticated\n");
clear_password_memory();
ev_break(EV_DEFAULT, EVBREAK_ALL);
return;
}
#else
if (pam_authenticate(pam_handle, 0) == PAM_SUCCESS) {
DEBUG("successfully authenticated\n");
clear_password_memory();
/* PAM credentials should be refreshed, this will for example update any kerberos tickets.
* Related to credentials pam_end() needs to be called to cleanup any temporary
* credentials like kerberos /tmp/krb5cc_pam_* files which may of been left behind if the
* refresh of the credentials failed. */
pam_setcred(pam_handle, PAM_REFRESH_CRED);
pam_end(pam_handle, PAM_SUCCESS);
ev_break(EV_DEFAULT, EVBREAK_ALL);
return;
}
#endif
if (debug_mode)
fprintf(stderr, "Authentication failure\n");
/* Get state of Caps and Num lock modifiers, to be displayed in
* STATE_AUTH_WRONG state */
xkb_mod_index_t idx, num_mods;
const char *mod_name;
num_mods = xkb_keymap_num_mods(xkb_keymap);
for (idx = 0; idx < num_mods; idx++) {
if (!xkb_state_mod_index_is_active(xkb_state, idx, XKB_STATE_MODS_EFFECTIVE))
continue;
mod_name = xkb_keymap_mod_get_name(xkb_keymap, idx);
if (mod_name == NULL)
continue;
/* Replace certain xkb names with nicer, human-readable ones. */
if (strcmp(mod_name, XKB_MOD_NAME_CAPS) == 0)
mod_name = "Caps Lock";
else if (strcmp(mod_name, XKB_MOD_NAME_ALT) == 0)
mod_name = "Alt";
else if (strcmp(mod_name, XKB_MOD_NAME_NUM) == 0)
mod_name = "Num Lock";
else if (strcmp(mod_name, XKB_MOD_NAME_LOGO) == 0)
mod_name = "Win";
char *tmp;
if (modifier_string == NULL) {
if (asprintf(&tmp, "%s", mod_name) != -1)
modifier_string = tmp;
} else if (asprintf(&tmp, "%s, %s", modifier_string, mod_name) != -1) {
free(modifier_string);
modifier_string = tmp;
}
}
auth_state = STATE_AUTH_WRONG;
failed_attempts += 1;
clear_input();
if (unlock_indicator)
redraw_screen();
/* Clear this state after 2 seconds (unless the user enters another
* password during that time). */
ev_now_update(main_loop);
START_TIMER(clear_auth_wrong_timeout, TSTAMP_N_SECS(2), clear_auth_wrong);
/* Cancel the clear_indicator_timeout, it would hide the unlock indicator
* too early. */
STOP_TIMER(clear_indicator_timeout);
/* beep on authentication failure, if enabled */
if (beep) {
xcb_bell(conn, 100);
xcb_flush(conn);
}
}
static void redraw_timeout(EV_P_ ev_timer *w, int revents) {
redraw_screen();
STOP_TIMER(w);
}
static bool skip_without_validation(void) {
if (input_position != 0)
return false;
if (skip_repeated_empty_password || ignore_empty_password)
return true;
return false;
}
/*
* Handle key presses. Fixes state, then looks up the key symbol for the
* given keycode, then looks up the key symbol (as UCS-2), converts it to
* UTF-8 and stores it in the password array.
*
*/
static void handle_key_press(xcb_key_press_event_t *event) {
xkb_keysym_t ksym;
char buffer[128];
int n;
bool ctrl;
#if XKBCOMPOSE == 1
bool composed = false;
#endif
ksym = xkb_state_key_get_one_sym(xkb_state, event->detail);
ctrl = xkb_state_mod_name_is_active(xkb_state, XKB_MOD_NAME_CTRL, XKB_STATE_MODS_DEPRESSED);
/* The buffer will be null-terminated, so n >= 2 for 1 actual character. */
memset(buffer, '\0', sizeof(buffer));
#if XKBCOMPOSE == 1
if (xkb_compose_state && xkb_compose_state_feed(xkb_compose_state, ksym) == XKB_COMPOSE_FEED_ACCEPTED) {
switch (xkb_compose_state_get_status(xkb_compose_state)) {
case XKB_COMPOSE_NOTHING:
break;
case XKB_COMPOSE_COMPOSING:
return;
case XKB_COMPOSE_COMPOSED:
/* xkb_compose_state_get_utf8 doesn't include the terminating byte in the return value
* as xkb_keysym_to_utf8 does. Adding one makes the variable n consistent. */
n = xkb_compose_state_get_utf8(xkb_compose_state, buffer, sizeof(buffer)) + 1;
ksym = xkb_compose_state_get_one_sym(xkb_compose_state);
composed = true;
break;
case XKB_COMPOSE_CANCELLED:
xkb_compose_state_reset(xkb_compose_state);
return;
}
}
if (!composed) {
n = xkb_keysym_to_utf8(ksym, buffer, sizeof(buffer));
}
#else
n = xkb_keysym_to_utf8(ksym, buffer, sizeof(buffer));
#endif
switch (ksym) {
case XKB_KEY_j:
case XKB_KEY_m:
case XKB_KEY_Return:
case XKB_KEY_KP_Enter:
case XKB_KEY_XF86ScreenSaver:
if ((ksym == XKB_KEY_j || ksym == XKB_KEY_m) && !ctrl)
break;
if (auth_state == STATE_AUTH_WRONG) {
retry_verification = true;
return;
}
if (skip_without_validation()) {
clear_input();
return;
}
finish_input();
skip_repeated_empty_password = true;
return;
default:
skip_repeated_empty_password = false;
}
switch (ksym) {
case XKB_KEY_u:
case XKB_KEY_Escape:
if ((ksym == XKB_KEY_u && ctrl) ||
ksym == XKB_KEY_Escape) {
DEBUG("C-u pressed\n");
clear_input();
/* Also hide the unlock indicator */
if (unlock_indicator)
clear_indicator();
return;
}
break;
case XKB_KEY_Delete:
case XKB_KEY_KP_Delete:
/* Deleting forward doesn’t make sense, as i3lock doesn’t allow you
* to move the cursor when entering a password. We need to eat this
* key press so that it won’t be treated as part of the password,
* see issue #50. */
return;
case XKB_KEY_h:
case XKB_KEY_BackSpace:
if (ksym == XKB_KEY_h && !ctrl)
break;
if (input_position == 0) {
START_TIMER(clear_indicator_timeout, 1.0, clear_indicator_cb);
unlock_state = STATE_NOTHING_TO_DELETE;
redraw_screen();
return;
}
/* decrement input_position to point to the previous glyph */
u8_dec(password, &input_position);
password[input_position] = '\0';
/* Hide the unlock indicator after a bit if the password buffer is
* empty. */
START_TIMER(clear_indicator_timeout, 1.0, clear_indicator_cb);
unlock_state = STATE_BACKSPACE_ACTIVE;
redraw_screen();
unlock_state = STATE_KEY_PRESSED;
return;
}
if ((input_position + 8) >= (int)sizeof(password))
return;
#if 0
/* FIXME: handle all of these? */
printf("is_keypad_key = %d\n", xcb_is_keypad_key(sym));
printf("is_private_keypad_key = %d\n", xcb_is_private_keypad_key(sym));
printf("xcb_is_cursor_key = %d\n", xcb_is_cursor_key(sym));
printf("xcb_is_pf_key = %d\n", xcb_is_pf_key(sym));
printf("xcb_is_function_key = %d\n", xcb_is_function_key(sym));
printf("xcb_is_misc_function_key = %d\n", xcb_is_misc_function_key(sym));
printf("xcb_is_modifier_key = %d\n", xcb_is_modifier_key(sym));
#endif
if (n < 2)
return;
/* store it in the password array as UTF-8 */
memcpy(password + input_position, buffer, n - 1);
input_position += n - 1;
DEBUG("current password = %.*s\n", input_position, password);
if (unlock_indicator) {
unlock_state = STATE_KEY_ACTIVE;
redraw_screen();
unlock_state = STATE_KEY_PRESSED;
struct ev_timer *timeout = NULL;
START_TIMER(timeout, TSTAMP_N_SECS(0.25), redraw_timeout);
STOP_TIMER(clear_indicator_timeout);
}
START_TIMER(discard_passwd_timeout, TSTAMP_N_MINS(3), discard_passwd_cb);
}
/*
* A visibility notify event will be received when the visibility (= can the
* user view the complete window) changes, so for example when a popup overlays
* some area of the i3lock window.
*
* In this case, we raise our window on top so that the popup (or whatever is
* hiding us) gets hidden.
*
*/
static void handle_visibility_notify(xcb_connection_t *conn,
xcb_visibility_notify_event_t *event) {
if (event->state != XCB_VISIBILITY_UNOBSCURED) {
uint32_t values[] = {XCB_STACK_MODE_ABOVE};
xcb_configure_window(conn, event->window, XCB_CONFIG_WINDOW_STACK_MODE, values);
xcb_flush(conn);
}
}
/*
* Called when the keyboard mapping changes. We update our symbols.
*
* We ignore errors — if the new keymap cannot be loaded it’s better if the
* screen stays locked and the user intervenes by using killall i3lock.
*
*/
static void process_xkb_event(xcb_generic_event_t *gevent) {
union xkb_event {
struct {
uint8_t response_type;
uint8_t xkbType;
uint16_t sequence;
xcb_timestamp_t time;
uint8_t deviceID;
} any;
xcb_xkb_new_keyboard_notify_event_t new_keyboard_notify;
xcb_xkb_map_notify_event_t map_notify;
xcb_xkb_state_notify_event_t state_notify;
} *event = (union xkb_event *)gevent;
DEBUG("process_xkb_event for device %d\n", event->any.deviceID);
if (event->any.deviceID != xkb_x11_get_core_keyboard_device_id(conn))
return;
/*
* XkbNewKkdNotify and XkbMapNotify together capture all sorts of keymap
* updates (e.g. xmodmap, xkbcomp, setxkbmap), with minimal redundent
* recompilations.
*/
switch (event->any.xkbType) {
case XCB_XKB_NEW_KEYBOARD_NOTIFY:
if (event->new_keyboard_notify.changed & XCB_XKB_NKN_DETAIL_KEYCODES)
(void)load_keymap();
break;
case XCB_XKB_MAP_NOTIFY:
(void)load_keymap();
break;
case XCB_XKB_STATE_NOTIFY:
xkb_state_update_mask(xkb_state,
event->state_notify.baseMods,
event->state_notify.latchedMods,
event->state_notify.lockedMods,
event->state_notify.baseGroup,
event->state_notify.latchedGroup,
event->state_notify.lockedGroup);
break;
}
}
/*
* Called when the properties on the root window change, e.g. when the screen
* resolution changes. If so we update the window to cover the whole screen
* and also redraw the image, if any.
*
*/
void handle_screen_resize(void) {
xcb_get_geometry_cookie_t geomc;
xcb_get_geometry_reply_t *geom;
geomc = xcb_get_geometry(conn, screen->root);
if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL)
return;
if (last_resolution[0] == geom->width &&
last_resolution[1] == geom->height) {
free(geom);
return;
}
last_resolution[0] = geom->width;
last_resolution[1] = geom->height;
free(geom);
redraw_screen();
uint32_t mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
xcb_configure_window(conn, win, mask, last_resolution);
xcb_flush(conn);
randr_query(screen->root);
redraw_screen();
}
static bool verify_png_image(const char *image_path) {
if (!image_path) {
return false;
}
/* Check file exists and has correct PNG header */
FILE *png_file = fopen(image_path, "r");
if (png_file == NULL) {
DEBUG("Image file path \"%s\" cannot be opened: %s\n", image_path, strerror(errno));
return false;
}
unsigned char png_header[8];
memset(png_header, '\0', sizeof(png_header));
int bytes_read = fread(png_header, 1, sizeof(png_header), png_file);
fclose(png_file);
if (bytes_read != sizeof(png_header)) {
DEBUG("Could not read PNG header from \"%s\"\n", image_path);
return false;
}
// Check PNG header according to the specification, available at:
// https://www.w3.org/TR/2003/REC-PNG-20031110/#5PNG-file-signature
static unsigned char PNG_REFERENCE_HEADER[8] = { 137, 80, 78, 71, 13, 10, 26, 10 };
if (memcmp(PNG_REFERENCE_HEADER, png_header, sizeof(png_header)) != 0) {
DEBUG("File \"%s\" does not start with a PNG header. i3lock currently only supports loading PNG files.\n", image_path);
return false;
}
return true;
}
#ifndef __OpenBSD__
/*
* Callback function for PAM. We only react on password request callbacks.
*
*/
static int conv_callback(int num_msg, const struct pam_message **msg,
struct pam_response **resp, void *appdata_ptr) {
if (num_msg == 0)
return 1;
/* PAM expects an array of responses, one for each message */
if ((*resp = calloc(num_msg, sizeof(struct pam_response))) == NULL) {
perror("calloc");
return 1;
}
for (int c = 0; c < num_msg; c++) {
if (msg[c]->msg_style != PAM_PROMPT_ECHO_OFF &&
msg[c]->msg_style != PAM_PROMPT_ECHO_ON)
continue;
/* return code is currently not used but should be set to zero */
resp[c]->resp_retcode = 0;
if ((resp[c]->resp = strdup(password)) == NULL) {
perror("strdup");
return 1;
}
}
return 0;
}
#endif
/*
* This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
* See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop
*
*/
static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
/* empty, because xcb_prepare_cb and xcb_check_cb are used */
}
/*
* Flush before blocking (and waiting for new events)
*
*/
static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
xcb_flush(conn);
}
/*
* Try closing logind sleep lock fd passed over from xss-lock, in case we're
* being run from there.
*
*/
static void maybe_close_sleep_lock_fd(void) {
const char *sleep_lock_fd = getenv("XSS_SLEEP_LOCK_FD");
char *endptr;
if (sleep_lock_fd && *sleep_lock_fd != 0) {
long int fd = strtol(sleep_lock_fd, &endptr, 10);
if (*endptr == 0) {
close(fd);
}
}
}
/*
* Instead of polling the X connection socket we leave this to
* xcb_poll_for_event() which knows better than we can ever know.
*
*/
static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
xcb_generic_event_t *event;
if (xcb_connection_has_error(conn))
errx(EXIT_FAILURE, "X11 connection broke, did your server terminate?\n");
while ((event = xcb_poll_for_event(conn)) != NULL) {
if (event->response_type == 0) {
xcb_generic_error_t *error = (xcb_generic_error_t *)event;
if (debug_mode)
fprintf(stderr, "X11 Error received! sequence 0x%x, error_code = %d\n",
error->sequence, error->error_code);
free(event);
continue;
}
/* Strip off the highest bit (set if the event is generated) */
int type = (event->response_type & 0x7F);
switch (type) {
case XCB_KEY_PRESS:
handle_key_press((xcb_key_press_event_t *)event);
break;
case XCB_VISIBILITY_NOTIFY:
handle_visibility_notify(conn, (xcb_visibility_notify_event_t *)event);
break;
case XCB_MAP_NOTIFY:
maybe_close_sleep_lock_fd();
if (!dont_fork) {
/* After the first MapNotify, we never fork again. We don’t
* expect to get another MapNotify, but better be sure… */
dont_fork = true;
/* In the parent process, we exit */
if (fork() != 0)
exit(0);
ev_loop_fork(EV_DEFAULT);
}
break;
case XCB_CONFIGURE_NOTIFY:
handle_screen_resize();
break;
default:
if (type == xkb_base_event) {
process_xkb_event(event);
}
if (randr_base > -1 &&
type == randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY) {
randr_query(screen->root);
handle_screen_resize();
}
}
free(event);
}
}
/*
* This function is called from a fork()ed child and will raise the i3lock
* window when the window is obscured, even when the main i3lock process is
* blocked due to the authentication backend.
*
*/
static void raise_loop(xcb_window_t window) {
xcb_connection_t *conn;
xcb_generic_event_t *event;
int screens;
if (xcb_connection_has_error((conn = xcb_connect(NULL, &screens))) > 0)
errx(EXIT_FAILURE, "Cannot open display\n");
/* We need to know about the window being obscured or getting destroyed. */
xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK,
(uint32_t[]){
XCB_EVENT_MASK_VISIBILITY_CHANGE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY});
xcb_flush(conn);
DEBUG("Watching window 0x%08x\n", window);
while ((event = xcb_wait_for_event(conn)) != NULL) {
if (event->response_type == 0) {
xcb_generic_error_t *error = (xcb_generic_error_t *)event;
DEBUG("X11 Error received! sequence 0x%x, error_code = %d\n",
error->sequence, error->error_code);
free(event);
continue;
}
/* Strip off the highest bit (set if the event is generated) */
int type = (event->response_type & 0x7F);
DEBUG("Read event of type %d\n", type);
switch (type) {
case XCB_VISIBILITY_NOTIFY:
handle_visibility_notify(conn, (xcb_visibility_notify_event_t *)event);
break;
case XCB_UNMAP_NOTIFY:
DEBUG("UnmapNotify for 0x%08x\n", (((xcb_unmap_notify_event_t *)event)->window));
if (((xcb_unmap_notify_event_t *)event)->window == window)
exit(EXIT_SUCCESS);
break;
case XCB_DESTROY_NOTIFY:
DEBUG("DestroyNotify for 0x%08x\n", (((xcb_destroy_notify_event_t *)event)->window));
if (((xcb_destroy_notify_event_t *)event)->window == window)
exit(EXIT_SUCCESS);
break;
default:
DEBUG("Unhandled event type %d\n", type);
break;
}
free(event);
}
}
int main(int argc, char *argv[]) {
struct passwd *pw;
char *username;
char *image_path = NULL;
JPEG_INFO jpg_info;
#ifndef __OpenBSD__
int ret;
struct pam_conv conv = {conv_callback, NULL};
#endif
int curs_choice = CURS_NONE;
int o;
int longoptind = 0;
struct option longopts[] = {
{"version", no_argument, NULL, 'v'},
{"nofork", no_argument, NULL, 'n'},
{"beep", no_argument, NULL, 'b'},
{"dpms", no_argument, NULL, 'd'},
{"color", required_argument, NULL, 'c'},
{"pointer", required_argument, NULL, 'p'},
{"debug", no_argument, NULL, 0},
{"help", no_argument, NULL, 'h'},
{"no-unlock-indicator", no_argument, NULL, 'u'},
{"image", required_argument, NULL, 'i'},
{"tiling", no_argument, NULL, 't'},
{"ignore-empty-password", no_argument, NULL, 'e'},
{"inactivity-timeout", required_argument, NULL, 'I'},
{"show-failed-attempts", no_argument, NULL, 'f'},
/* options for unlock indicator colors */
// defining a lot of different chars here for the options -- TODO find a nicer way for this, maybe not offering single character options at all
{"insidevercolor", required_argument, NULL, 0}, // --i-v
{"insidewrongcolor", required_argument, NULL, 0}, // --i-w
{"insidecolor", required_argument, NULL, 0}, // --i-c
{"ringvercolor", required_argument, NULL, 0}, // --r-v
{"ringwrongcolor", required_argument, NULL, 0}, // --r-w
{"ringcolor", required_argument, NULL, 0}, // --r-c
{"linecolor", required_argument, NULL, 0}, // --l-c
{"verifcolor", required_argument, NULL, 0},
{"wrongcolor", required_argument, NULL, 0},
{"layoutcolor", required_argument, NULL, 0},
{"timecolor", required_argument, NULL, 0},
{"datecolor", required_argument, NULL, 0},
{"keyhlcolor", required_argument, NULL, 0}, // --k-c
{"bshlcolor", required_argument, NULL, 0}, // --b-c
{"separatorcolor", required_argument, NULL, 0},
{"line-uses-ring", no_argument, NULL, 'r'},
{"line-uses-inside", no_argument, NULL, 's'},
/* s for in_s_ide; ideally I'd use -I but that's used for timeout, which should use -T, but compatibility argh
* note: `I` has been deprecated for a while, so I might just remove that and reshuffle that? */
{"screen", required_argument, NULL, 'S'},
{"blur", required_argument, NULL, 'B'},
{"clock", no_argument, NULL, 'k'},
{"force-clock", no_argument, NULL, 0},
{"indicator", no_argument, NULL, 0},
{"refresh-rate", required_argument, NULL, 0},
{"composite", no_argument, NULL, 0},
{"verif-align", required_argument, NULL, 0},
{"wrong-align", required_argument, NULL, 0},
{"time-align", required_argument, NULL, 0},
{"date-align", required_argument, NULL, 0},
{"layout-align", required_argument, NULL, 0},
{"modif-align", required_argument, NULL, 0},
{"timestr", required_argument, NULL, 0},
{"datestr", required_argument, NULL, 0},
{"keylayout", required_argument, NULL, 0},
{"time-font", required_argument, NULL, 0},
{"date-font", required_argument, NULL, 0},
{"verif-font", required_argument, NULL, 0},
{"wrong-font", required_argument, NULL, 0},
{"layout-font", required_argument, NULL, 0},
{"verifsize", required_argument, NULL, 0},
{"wrongsize", required_argument, NULL, 0},
{"timesize", required_argument, NULL, 0},
{"datesize", required_argument, NULL, 0},
{"layoutsize", required_argument, NULL, 0},
{"timepos", required_argument, NULL, 0},
{"datepos", required_argument, NULL, 0},
{"layoutpos", required_argument, NULL, 0},
{"statuspos", required_argument, NULL, 0},
{"modifpos", required_argument, NULL, 0},
{"indpos", required_argument, NULL, 0},
{"veriftext", required_argument, NULL, 0},
{"wrongtext", required_argument, NULL, 0},
{"modsize", required_argument, NULL, 0},
{"radius", required_argument, NULL, 0},
{"ring-width", required_argument, NULL, 0},
{"bar-indicator", no_argument, NULL, 0},
{"bar-direction", required_argument, NULL, 0},
{"bar-width", required_argument, NULL, 0},
{"bar-orientation", required_argument, NULL, 0},
{"bar-step", required_argument, NULL, 0},
{"bar-max-height", required_argument, NULL, 0},
{"bar-base-width", required_argument, NULL, 0},
{"bar-color", required_argument, NULL, 0},
{"bar-periodic-step", required_argument, NULL, 0},
{"bar-position", required_argument, NULL, 0},
{"redraw-thread", no_argument, NULL, 0},
{NULL, no_argument, NULL, 0}};
if ((pw = getpwuid(getuid())) == NULL)
err(EXIT_FAILURE, "getpwuid() failed");
if ((username = pw->pw_name) == NULL)
errx(EXIT_FAILURE, "pw->pw_name is NULL.\n");
char *optstring = "hvnbdc:p:ui:teI:frsS:kB:";
while ((o = getopt_long(argc, argv, optstring, longopts, &longoptind)) != -1) {
switch (o) {
case 'v':
errx(EXIT_SUCCESS, "version " I3LOCK_VERSION " © 2010 Michael Stapelberg");
case 'n':
dont_fork = true;
break;
case 'b':
beep = true;
break;
case 'd':
fprintf(stderr, "DPMS support has been removed from i3lock. Please see the manpage i3lock(1).\n");
break;
case 'I': {
fprintf(stderr, "Inactivity timeout only makes sense with DPMS, which was removed. Please see the manpage i3lock(1).\n");
break;
}
case 'c': {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 6 || sscanf(arg, "%06[0-9a-fA-F]", color) != 1)
errx(EXIT_FAILURE, "color is invalid, it must be given in 3-byte hexadecimal format: rrggbb\n");
break;
}
case 'u':
unlock_indicator = false;
break;
case 'i':
image_path = strdup(optarg);
break;
case 't':
tile = true;
break;
case 'p':
if (!strcmp(optarg, "win")) {
curs_choice = CURS_WIN;
} else if (!strcmp(optarg, "default")) {
curs_choice = CURS_DEFAULT;
} else {
errx(EXIT_FAILURE, "i3lock: Invalid pointer type given. Expected one of \"win\" or \"default\".\n");
}
break;
case 'e':
ignore_empty_password = true;
break;
case 'r':
if (internal_line_source != 0) {
errx(EXIT_FAILURE, "i3lock-color: Options line-uses-ring and line-uses-inside conflict.");
}
internal_line_source = 1; //sets the line drawn inside to use the inside color when drawn
break;
case 's':
if (internal_line_source != 0) {
errx(EXIT_FAILURE, "i3lock-color: Options line-uses-ring and line-uses-inside conflict.");
}
internal_line_source = 2;
break;
case 'S':
screen_number = atoi(optarg);
break;
case 'k':
show_clock = true;
break;
case 'B':
blur = true;
blur_sigma = atoi(optarg);
break;
case 0:
if (strcmp(longopts[longoptind].name, "debug") == 0)
debug_mode = true;
else if (strcmp(longopts[longoptind].name, "indicator") == 0) {
show_indicator = true;
}
else if (strcmp(longopts[longoptind].name, "insidevercolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", insidevercolor) != 1)
errx(1, "insidevercolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "insidewrongcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", insidewrongcolor) != 1)
errx(1, "insidewrongcolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "insidecolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", insidecolor) != 1)
errx(1, "insidecolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "ringvercolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", ringvercolor) != 1)
errx(1, "ringvercolor is invalid, color must be given in 4-byte format: rrggbb\n");
}
else if (strcmp(longopts[longoptind].name, "ringwrongcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", ringwrongcolor) != 1)
errx(1, "ringwrongcolor is invalid, color must be given in 4-byte format: rrggbb\n");
}
else if (strcmp(longopts[longoptind].name, "ringcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", ringcolor) != 1)
errx(1, "ringcolor is invalid, color must be given in 4-byte format: rrggbb\n");
}
else if (strcmp(longopts[longoptind].name, "linecolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", linecolor) != 1)
errx(1, "linecolor is invalid, color must be given in 4-byte format: rrggbb\n");
}
else if (strcmp(longopts[longoptind].name, "verifcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", verifcolor) != 1)
errx(1, "verifcolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "wrongcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", wrongcolor) != 1)
errx(1, "wrongcolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "layoutcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", layoutcolor) != 1)
errx(1, "layoutcolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "timecolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", timecolor) != 1)
errx(1, "timecolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "datecolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", datecolor) != 1)
errx(1, "datecolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "keyhlcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", keyhlcolor) != 1)
errx(1, "keyhlcolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "bshlcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", bshlcolor) != 1)
errx(1, "bshlcolor is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "separatorcolor") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", separatorcolor) != 1)
errx(1, "separator is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "keylayout") == 0) {
// if layout is NULL, do nothing
// if not NULL, attempt to display stuff
// need to code some sane defaults for it
keylayout_mode = atoi(optarg);
}
else if (strcmp(longopts[longoptind].name, "timestr") == 0) {
//read in to timestr
if (strlen(optarg) > 31) {
errx(1, "time format string can be at most 31 characters\n");
}
strcpy(time_format,optarg);
}
else if (strcmp(longopts[longoptind].name, "datestr") == 0) {
//read in to datestr
if (strlen(optarg) > 31) {
errx(1, "time format string can be at most 31 characters\n");
}
strcpy(date_format,optarg);
}
else if (strcmp(longopts[longoptind].name, "layout-font") == 0) {
//read in to time_font
if (strlen(optarg) > 31) {
errx(1, "layout font string can be at most 31 characters\n");
}
strcpy(fonts[LAYOUT_FONT],optarg);
}
else if (strcmp(longopts[longoptind].name, "time-font") == 0) {
//read in to time_font
if (strlen(optarg) > 31) {
errx(1, "time font string can be at most 31 characters\n");
}
strcpy(fonts[TIME_FONT],optarg);
}
else if (strcmp(longopts[longoptind].name, "date-font") == 0) {
//read in to date_font
if (strlen(optarg) > 31) {
errx(1, "date font string can be at most 31 characters\n");
}
strcpy(fonts[DATE_FONT],optarg);
}
else if (strcmp(longopts[longoptind].name, "verif-font") == 0) {
if (strlen(optarg) > 31) {
errx(1, "verif font string can be at most 31 "
"characters\n");
}
strcpy(fonts[VERIF_FONT],optarg);
}
else if (strcmp(longopts[longoptind].name, "wrong-font") == 0) {
if (strlen(optarg) > 31) {
errx(1, "wrong font string can be at most 31 "
"characters\n");
}
strcpy(fonts[WRONG_FONT],optarg);
}
else if (strcmp(longopts[longoptind].name, "timesize") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &time_size) != 1)
errx(1, "timesize must be a number\n");
if (time_size < 1)
errx(1, "timesize must be larger than 0\n");
}
else if (strcmp(longopts[longoptind].name, "datesize") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &date_size) != 1)
errx(1, "datesize must be a number\n");
if (date_size < 1)
errx(1, "datesize must be larger than 0\n");
}
else if (strcmp(longopts[longoptind].name, "layoutsize") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &layout_size) != 1)
errx(1, "layoutsize must be a number\n");
if (date_size < 1)
errx(1, "layoutsize must be larger than 0\n");
}
else if (strcmp(longopts[longoptind].name, "indpos") == 0) {
//read in to ind_x_expr and ind_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "indicator position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%30[^:]:%30[^:]", ind_x_expr, ind_y_expr) != 2) {
errx(1, "indpos must be of the form x:y\n");
}
}
else if (strcmp(longopts[longoptind].name, "timepos") == 0) {
//read in to time_x_expr and time_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "time position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%30[^:]:%30[^:]", time_x_expr, time_y_expr) != 2) {
errx(1, "timepos must be of the form x:y\n");
}
}
else if (strcmp(longopts[longoptind].name, "datepos") == 0) {
//read in to date_x_expr and date_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "date position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%30[^:]:%30[^:]", date_x_expr, date_y_expr) != 2) {
errx(1, "datepos must be of the form x:y\n");
}
}
else if (strcmp(longopts[longoptind].name, "layoutpos") == 0) {
//read in to time_x_expr and time_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "layout position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%30[^:]:%30[^:]", layout_x_expr, layout_y_expr) != 2) {
errx(1, "layoutpos must be of the form x:y\n");
}
}
else if (strcmp(longopts[longoptind].name, "statuspos") == 0) {
//read in to time_x_expr and time_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "status position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%30[^:]:%30[^:]", status_x_expr, status_y_expr) != 2) {
errx(1, "statuspos must be of the form x:y\n");
}
}
else if (strcmp(longopts[longoptind].name, "modifpos") == 0) {
//read in to time_x_expr and time_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "modif position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%30[^:]:%30[^:]", modif_x_expr, modif_y_expr) != 2) {
errx(1, "modifpos must be of the form x:y\n");
}
}
else if (strcmp(longopts[longoptind].name, "refresh-rate") == 0) {
char* arg = optarg;
refresh_rate = strtof(arg, NULL);
if (refresh_rate < 0.0) {
fprintf(stderr, "The given refresh rate of %fs is less than zero seconds and was ignored.\n", refresh_rate);
refresh_rate = 1.0;
}
}
else if (strcmp(longopts[longoptind].name, "composite") == 0) {
composite = true;
}
else if (strcmp(longopts[longoptind].name, "veriftext") == 0) {
verif_text = optarg;
}
else if (strcmp(longopts[longoptind].name, "wrongtext") == 0) {
wrong_text = optarg;
}
else if (strcmp(longopts[longoptind].name, "verifsize") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &verif_size) != 1)
errx(1, "verifsize must be a number\n");
if (verif_size < 1) {
fprintf(stderr, "verifsize must be a positive integer; ignoring...\n");
verif_size = 28.0;
}
}
else if (strcmp(longopts[longoptind].name, "wrongsize") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &wrong_size) != 1)
errx(1, "wrongsize must be a number\n");
if (wrong_size < 1) {
fprintf(stderr, "wrongsize must be a positive integer; ignoring...\n");
wrong_size = 28.0;
}
}
else if (strcmp(longopts[longoptind].name, "modsize") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &modifier_size) != 1)
errx(1, "modsize must be a number\n");
if (modifier_size < 1) {
fprintf(stderr, "modsize must be a positive integer; ignoring...\n");
modifier_size = 14.0;
}
}
else if (strcmp(longopts[longoptind].name, "radius") == 0) {
char *arg = optarg;
if (sscanf(arg, "%lf", &circle_radius) != 1)
errx(1, "radius must be a number\n");
if (circle_radius < 1) {
fprintf(stderr, "radius must be a positive integer; ignoring...\n");
circle_radius = 90.0;
}
}
else if (strcmp(longopts[longoptind].name, "ring-width") == 0) {
char *arg = optarg;
double new_width = 0;
if (sscanf(arg, "%lf", &new_width) != 1)
errx(1, "ring-width must be a number\n");
if (new_width < 1) {
fprintf(stderr, "ring-width must be a positive integer; ignoring...\n");
}
else {
ring_width = new_width;
}
}
else if (strcmp(longopts[longoptind].name, "verif-align") == 0) {
int opt = atoi(optarg);
if (opt < 0 || opt > 2) opt = 0;
verif_align = opt;
}
else if (strcmp(longopts[longoptind].name, "wrong-align") == 0) {
int opt = atoi(optarg);
if (opt < 0 || opt > 2) opt = 0;
wrong_align = opt;
}
else if (strcmp(longopts[longoptind].name, "time-align") == 0) {
int opt = atoi(optarg);
if (opt < 0 || opt > 2) opt = 0;
time_align = opt;
}
else if (strcmp(longopts[longoptind].name, "date-align") == 0) {
int opt = atoi(optarg);
if (opt < 0 || opt > 2) opt = 0;
date_align = opt;
}
else if (strcmp(longopts[longoptind].name, "layout-align") == 0) {
int opt = atoi(optarg);
if (opt < 0 || opt > 2) opt = 0;
layout_align = opt;
}
else if (strcmp(longopts[longoptind].name, "force-clock") == 0) {
show_clock = true;
always_show_clock = true;
}
else if (strcmp(longopts[longoptind].name, "bar-indicator") == 0) {
bar_enabled = true;
}
else if (strcmp(longopts[longoptind].name, "bar-direction") == 0) {
int opt = atoi(optarg);
switch(opt) {
case BAR_REVERSED:
bar_reversed = true;
break;
case BAR_BIDIRECTIONAL:
bar_bidirectional = true;
break;
case BAR_DEFAULT:
default:
break;
}
}
else if (strcmp(longopts[longoptind].name, "bar-width") == 0) {
bar_width = atoi(optarg);
if (bar_width < 1) bar_width = 150;
// num_bars and bar_heights* initialized later when we grab display info
}
else if (strcmp(longopts[longoptind].name, "bar-orientation") == 0) {
char* arg = optarg;
if (strcmp(arg, "vertical") == 0)
bar_orientation = BAR_VERT;
else if (strcmp(arg, "horizontal") == 0)
bar_orientation = BAR_FLAT;
else
errx(1, "bar orientation must be \"vertical\" or \"horizontal\"\n");
}
else if (strcmp(longopts[longoptind].name, "bar-step") == 0) {
bar_step = atoi(optarg);
if (bar_step < 1) bar_step = 15;
}
else if (strcmp(longopts[longoptind].name, "bar-max-height") == 0) {
max_bar_height = atoi(optarg);
if (max_bar_height < 1) max_bar_height = 25;
}
else if (strcmp(longopts[longoptind].name, "bar-base-width") == 0) {
bar_base_height = atoi(optarg);
if (bar_base_height < 1) bar_base_height = 25;
}
else if (strcmp(longopts[longoptind].name, "bar-color") == 0) {
char *arg = optarg;
/* Skip # if present */
if (arg[0] == '#')
arg++;
if (strlen(arg) != 8 || sscanf(arg, "%08[0-9a-fA-F]", bar_base_color) != 1)
errx(1, "bar-color is invalid, color must be given in 4-byte format: rrggbbaa\n");
}
else if (strcmp(longopts[longoptind].name, "bar-periodic-step") == 0) {
int tmp = atoi(optarg);
if (tmp > 0)
bar_periodic_step = tmp;
}
else if (strcmp(longopts[longoptind].name, "bar-position") == 0) {
//read in to ind_x_expr and ind_y_expr
if (strlen(optarg) > 31) {
// this is overly restrictive since both the x and y string buffers have size 32, but it's easier to check.
errx(1, "indicator position string can be at most 31 characters\n");
}
char* arg = optarg;
if (sscanf(arg, "%31s", bar_expr) != 1) {
errx(1, "bar-position must be of the form [pos] with a max length of 31\n");
}
}
else if (strcmp(longopts[longoptind].name, "redraw-thread") == 0) {
redraw_thread = true;
}
break;
case 'f':
show_failed_attempts = true;
break;
default:
errx(EXIT_FAILURE, "Syntax: i3lock [-v] [-n] [-b] [-d] [-c color] [-u] [-p win|default]"
" [-i image.png] [-t] [-e] [-f]\n"
"Please see the manpage for a full list of arguments.");
}
}
/* We need (relatively) random numbers for highlighting a random part of
* the unlock indicator upon keypresses. */
srand(time(NULL));
#ifndef __OpenBSD__
/* Initialize PAM */
if ((ret = pam_start("i3lock", username, &conv, &pam_handle)) != PAM_SUCCESS)
errx(EXIT_FAILURE, "PAM: %s", pam_strerror(pam_handle, ret));
if ((ret = pam_set_item(pam_handle, PAM_TTY, getenv("DISPLAY"))) != PAM_SUCCESS)
errx(EXIT_FAILURE, "PAM: %s", pam_strerror(pam_handle, ret));
#endif
/* Using mlock() as non-super-user seems only possible in Linux.
* Users of other operating systems should use encrypted swap/no swap
* (or remove the ifdef and run i3lock as super-user).
* Alas, swap is encrypted by default on OpenBSD so swapping out
* is not necessarily an issue. */
#if defined(__linux__)
/* Lock the area where we store the password in memory, we don’t want it to
* be swapped to disk. Since Linux 2.6.9, this does not require any
* privileges, just enough bytes in the RLIMIT_MEMLOCK limit. */
if (mlock(password, sizeof(password)) != 0)
err(EXIT_FAILURE, "Could not lock page in memory, check RLIMIT_MEMLOCK");
#endif
/* Double checking that connection is good and operatable with xcb */
int screennr;
if ((conn = xcb_connect(NULL, &screennr)) == NULL ||
xcb_connection_has_error(conn))
errx(EXIT_FAILURE, "Could not connect to X11, maybe you need to set DISPLAY?");
if (xkb_x11_setup_xkb_extension(conn,
XKB_X11_MIN_MAJOR_XKB_VERSION,
XKB_X11_MIN_MINOR_XKB_VERSION,
0,
NULL,
NULL,
&xkb_base_event,
&xkb_base_error) != 1)
errx(EXIT_FAILURE, "Could not setup XKB extension.");
layout_text = get_keylayoutname(keylayout_mode, conn);
if (layout_text)
show_clock = true;
static const xcb_xkb_map_part_t required_map_parts =
(XCB_XKB_MAP_PART_KEY_TYPES |
XCB_XKB_MAP_PART_KEY_SYMS |
XCB_XKB_MAP_PART_MODIFIER_MAP |
XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
XCB_XKB_MAP_PART_KEY_ACTIONS |
XCB_XKB_MAP_PART_VIRTUAL_MODS |
XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP);
static const xcb_xkb_event_type_t required_events =
(XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY |
XCB_XKB_EVENT_TYPE_MAP_NOTIFY |
XCB_XKB_EVENT_TYPE_STATE_NOTIFY);
xcb_xkb_select_events(
conn,
xkb_x11_get_core_keyboard_device_id(conn),
required_events,
0,
required_events,
required_map_parts,
required_map_parts,
0);
/* When we cannot initially load the keymap, we better exit */
if (!load_keymap())
errx(EXIT_FAILURE, "Could not load keymap");
const char *locale = getenv("LC_ALL");
if (!locale || !*locale)
locale = getenv("LC_TIME");
if (!locale || !*locale)
locale = getenv("LC_CTYPE");
if (!locale || !*locale)
locale = getenv("LANG");
if (!locale || !*locale) {
if (debug_mode)
fprintf(stderr, "Can't detect your locale, fallback to C\n");
locale = "C";
}
setlocale(LC_ALL, locale);
#if XKBCOMPOSE == 1
load_compose_table(locale);
#endif
screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
randr_init(&randr_base, screen->root);
randr_query(screen->root);
last_resolution[0] = screen->width_in_pixels;
last_resolution[1] = screen->height_in_pixels;
if (bar_enabled && bar_width > 0) {
int tmp = screen->width_in_pixels;
if (bar_orientation == BAR_VERT) tmp = screen->height_in_pixels;
num_bars = tmp / bar_width;
if (tmp % bar_width != 0) ++num_bars;
bar_heights = (double*) calloc(num_bars, sizeof(double));
}
xcb_change_window_attributes(conn, screen->root, XCB_CW_EVENT_MASK,
(uint32_t[]){XCB_EVENT_MASK_STRUCTURE_NOTIFY});
init_colors_once();
if (verify_png_image(image_path)) {
/* Create a pixmap to render on, fill it with the background color */
img = cairo_image_surface_create_from_png(image_path);
} else if (file_is_jpg(image_path)) {
DEBUG("Image looks like a jpeg, decoding\n");
unsigned char* jpg_data = read_JPEG_file(image_path, &jpg_info);
if (jpg_data != NULL) {
img = cairo_image_surface_create_for_data(jpg_data,
CAIRO_FORMAT_ARGB32, jpg_info.width, jpg_info.height,
jpg_info.stride);
}
}
/* In case loading failed, we just pretend no -i was specified. */
if (img && cairo_surface_status(img) != CAIRO_STATUS_SUCCESS) {
fprintf(stderr, "Could not load image \"%s\": %s\n",
image_path, cairo_status_to_string(cairo_surface_status(img)));
img = NULL;
}
free(image_path);
xcb_pixmap_t* blur_pixmap = NULL;
if (blur) {
blur_pixmap = malloc(sizeof(xcb_pixmap_t));
xcb_visualtype_t *vistype = get_root_visual_type(screen);
*blur_pixmap = capture_bg_pixmap(conn, screen, last_resolution);
cairo_surface_t *xcb_img = cairo_xcb_surface_create(conn, *blur_pixmap, vistype, last_resolution[0], last_resolution[1]);
blur_img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, last_resolution[0], last_resolution[1]);
cairo_t *ctx = cairo_create(blur_img);
cairo_set_source_surface(ctx, xcb_img, 0, 0);
cairo_paint(ctx);
blur_image_surface(blur_img, blur_sigma);
if (img) {
if (!tile) {
cairo_set_source_surface(ctx, img, 0, 0);
cairo_paint(ctx);
} else {
/* create a pattern and fill a rectangle as big as the screen */
cairo_pattern_t *pattern;
pattern = cairo_pattern_create_for_surface(img);
cairo_set_source(ctx, pattern);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_rectangle(ctx, 0, 0, last_resolution[0], last_resolution[1]);
cairo_fill(ctx);
cairo_pattern_destroy(pattern);
}
cairo_set_source_surface(ctx, img, 0, 0);
cairo_paint(ctx);
cairo_surface_destroy(img);
img = NULL;
}
cairo_destroy(ctx);
cairo_surface_destroy(xcb_img);
}
/* Pixmap on which the image is rendered to (if any) */
xcb_pixmap_t bg_pixmap = draw_image(last_resolution);
xcb_window_t stolen_focus = find_focused_window(conn, screen->root);
/* Open the fullscreen window, already with the correct pixmap in place */
win = open_fullscreen_window(conn, screen, color, bg_pixmap);
xcb_free_pixmap(conn, bg_pixmap);
if (blur_pixmap) {
xcb_free_pixmap(conn, *blur_pixmap);
free(blur_pixmap);
blur_pixmap = NULL;
}
cursor = create_cursor(conn, screen, win, curs_choice);
/* Display the "locking…" message while trying to grab the pointer/keyboard. */
auth_state = STATE_AUTH_LOCK;
if (!grab_pointer_and_keyboard(conn, screen, cursor, 1000)) {
DEBUG("stole focus from X11 window 0x%08x\n", stolen_focus);
/* Set the focus to i3lock, possibly closing context menus which would
* otherwise prevent us from grabbing keyboard/pointer.
*
* We cannot use set_focused_window because _NET_ACTIVE_WINDOW only
* works for managed windows, but i3lock uses an unmanaged window
* (override_redirect=1). */
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT /* revert_to */, win, XCB_CURRENT_TIME);
if (!grab_pointer_and_keyboard(conn, screen, cursor, 9000)) {
auth_state = STATE_I3LOCK_LOCK_FAILED;
redraw_screen();
sleep(1);
errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
}
}
pid_t pid = fork();
/* The pid == -1 case is intentionally ignored here:
* While the child process is useful for preventing other windows from
* popping up while i3lock blocks, it is not critical. */
if (pid == 0) {
/* Child */
close(xcb_get_file_descriptor(conn));
maybe_close_sleep_lock_fd();
raise_loop(win);
exit(EXIT_SUCCESS);
}
/* Load the keymap again to sync the current modifier state. Since we first
* loaded the keymap, there might have been changes, but starting from now,
* we should get all key presses/releases due to having grabbed the
* keyboard. */
(void)load_keymap();
/* Initialize the libev event loop. */
main_loop = EV_DEFAULT;
if (main_loop == NULL)
errx(EXIT_FAILURE, "Could not initialize libev. Bad LIBEV_FLAGS?\n");
/* Explicitly call the screen redraw in case "locking…" message was displayed */
auth_state = STATE_AUTH_IDLE;
redraw_screen();
struct ev_io *xcb_watcher = calloc(sizeof(struct ev_io), 1);
struct ev_check *xcb_check = calloc(sizeof(struct ev_check), 1);
struct ev_prepare *xcb_prepare = calloc(sizeof(struct ev_prepare), 1);
ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
ev_io_start(main_loop, xcb_watcher);
ev_check_init(xcb_check, xcb_check_cb);
ev_check_start(main_loop, xcb_check);
ev_prepare_init(xcb_prepare, xcb_prepare_cb);
ev_prepare_start(main_loop, xcb_prepare);
/* Invoke the event callback once to catch all the events which were
* received up until now. ev will only pick up new events (when the X11
* file descriptor becomes readable). */
ev_invoke(main_loop, xcb_check, 0);
if (show_clock || bar_enabled) {
if (redraw_thread) {
struct timespec ts;
double s;
double ns = modf(refresh_rate, &s);
ts.tv_sec = (time_t) s;
ts.tv_nsec = ns * NANOSECONDS_IN_SECOND;
(void) pthread_create(&draw_thread, NULL, start_time_redraw_tick_pthread, (void*) &ts);
} else {
start_time_redraw_tick(main_loop);
}
}
ev_loop(main_loop, 0);
if (stolen_focus == XCB_NONE) {
return 0;
}
DEBUG("restoring focus to X11 window 0x%08x\n", stolen_focus);
xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
xcb_destroy_window(conn, win);
set_focused_window(conn, screen->root, stolen_focus);
xcb_aux_sync(conn);
return 0;
}
View Git Blame Copy Permalink