680 lines
20 KiB
C
680 lines
20 KiB
C
#include "wayland-swaylock-client-protocol.h"
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#include <xkbcommon/xkbcommon.h>
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#include <xkbcommon/xkbcommon-names.h>
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#include <security/pam_appl.h>
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#include <json-c/json.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <getopt.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include "client/window.h"
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#include "client/registry.h"
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#include "client/cairo.h"
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#include "ipc-client.h"
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#include "log.h"
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#include "lock/lock.h"
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struct registry *registry;
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struct render_data render_data;
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bool show_indicator = true;
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void wl_dispatch_events() {
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wl_display_flush(registry->display);
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if (wl_display_dispatch(registry->display) == -1) {
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sway_log(L_ERROR, "failed to run wl_display_dispatch");
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exit(1);
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}
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}
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void sigalarm_handler(int sig) {
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signal(SIGALRM, SIG_IGN);
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// Hide typing indicator
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render_data.auth_state = AUTH_STATE_IDLE;
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render(&render_data);
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wl_display_flush(registry->display);
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signal(SIGALRM, sigalarm_handler);
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}
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void sway_terminate(int exit_code) {
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int i;
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for (i = 0; i < render_data.surfaces->length; ++i) {
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struct window *window = render_data.surfaces->items[i];
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window_teardown(window);
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}
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list_free(render_data.surfaces);
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if (registry) {
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registry_teardown(registry);
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}
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exit(exit_code);
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}
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char *password;
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int password_size;
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int function_conversation(int num_msg, const struct pam_message **msg,
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struct pam_response **resp, void *appdata_ptr) {
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const char* msg_style_names[] = {
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NULL,
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"PAM_PROMPT_ECHO_OFF",
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"PAM_PROMPT_ECHO_ON",
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"PAM_ERROR_MSG",
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"PAM_TEXT_INFO",
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};
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/* PAM expects an array of responses, one for each message */
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struct pam_response *pam_reply = calloc(num_msg, sizeof(struct pam_response));
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*resp = pam_reply;
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for(int i=0; i<num_msg; ++i) {
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sway_log(L_DEBUG, "msg[%d]: (%s) %s", i,
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msg_style_names[msg[i]->msg_style],
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msg[i]->msg);
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switch (msg[i]->msg_style) {
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case PAM_PROMPT_ECHO_OFF:
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case PAM_PROMPT_ECHO_ON:
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pam_reply[i].resp = password;
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break;
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case PAM_ERROR_MSG:
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case PAM_TEXT_INFO:
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break;
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}
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}
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return PAM_SUCCESS;
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}
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/**
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* Note: PAM will free() 'password' during the process
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*/
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bool verify_password() {
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struct passwd *passwd = getpwuid(getuid());
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char *username = passwd->pw_name;
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const struct pam_conv local_conversation = { function_conversation, NULL };
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pam_handle_t *local_auth_handle = NULL;
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int pam_err;
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if ((pam_err = pam_start("swaylock", username, &local_conversation, &local_auth_handle)) != PAM_SUCCESS) {
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sway_abort("PAM returned %d\n", pam_err);
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}
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if ((pam_err = pam_authenticate(local_auth_handle, 0)) != PAM_SUCCESS) {
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return false;
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}
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if ((pam_err = pam_end(local_auth_handle, pam_err)) != PAM_SUCCESS) {
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return false;
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}
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return true;
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}
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void notify_key(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t code, uint32_t codepoint) {
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int redraw_screen = 0;
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char *password_realloc;
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if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
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switch (sym) {
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case XKB_KEY_KP_Enter: // fallthrough
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case XKB_KEY_Return:
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render_data.auth_state = AUTH_STATE_VALIDATING;
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render(&render_data);
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// Make sure our render call will actually be displayed on the screen
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wl_dispatch_events();
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if (verify_password()) {
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exit(0);
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}
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render_data.auth_state = AUTH_STATE_INVALID;
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redraw_screen = 1;
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password_size = 1024;
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password = malloc(password_size);
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password[0] = '\0';
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break;
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case XKB_KEY_BackSpace:
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{
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int i = strlen(password);
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if (i > 0) {
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password[i - 1] = '\0';
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render_data.auth_state = AUTH_STATE_BACKSPACE;
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redraw_screen = 1;
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}
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break;
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}
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case XKB_KEY_Control_L: // fallthrough
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case XKB_KEY_Control_R: // fallthrough
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case XKB_KEY_Shift_L: // fallthrough
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case XKB_KEY_Shift_R: // fallthrough
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case XKB_KEY_Caps_Lock: // fallthrough
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case XKB_KEY_Shift_Lock: // fallthrough
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case XKB_KEY_Meta_L: // fallthrough
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case XKB_KEY_Meta_R: // fallthrough
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case XKB_KEY_Alt_L: // fallthrough
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case XKB_KEY_Alt_R: // fallthrough
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case XKB_KEY_Super_L: // fallthrough
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case XKB_KEY_Super_R: // fallthrough
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case XKB_KEY_Hyper_L: // fallthrough
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case XKB_KEY_Hyper_R:
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{
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// don't draw screen on modifier keys
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break;
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}
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case XKB_KEY_Escape: // fallthrough
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case XKB_KEY_u: // fallthrough
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case XKB_KEY_U:
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{
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// clear password buffer on ctrl-u (or escape for i3lock compatibility)
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if (sym == XKB_KEY_Escape || xkb_state_mod_name_is_active(registry->input->xkb.state,
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XKB_MOD_NAME_CTRL, XKB_STATE_MODS_EFFECTIVE) > 0) {
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render_data.auth_state = AUTH_STATE_BACKSPACE;
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redraw_screen = 1;
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password_size = 1024;
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free(password);
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password = malloc(password_size);
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password[0] = '\0';
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break;
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}
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}
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default:
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{
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render_data.auth_state = AUTH_STATE_INPUT;
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redraw_screen = 1;
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int i = strlen(password);
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if (i + 1 == password_size) {
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password_size += 1024;
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password_realloc = realloc(password, password_size);
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// reset password if realloc fails.
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if (password_realloc == NULL) {
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password_size = 1024;
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free(password);
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password = malloc(password_size);
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password[0] = '\0';
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break;
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} else {
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password = password_realloc;
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}
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}
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password[i] = (char)codepoint;
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password[i + 1] = '\0';
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break;
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}
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}
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if (redraw_screen) {
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render(&render_data);
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wl_dispatch_events();
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// Hide the indicator after a couple of seconds
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alarm(5);
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}
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}
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}
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void render_color(struct window *window, uint32_t color) {
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cairo_set_source_u32(window->cairo, color);
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cairo_paint(window->cairo);
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}
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void render_image(struct window *window, cairo_surface_t *image, enum scaling_mode scaling_mode) {
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double width = cairo_image_surface_get_width(image);
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double height = cairo_image_surface_get_height(image);
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switch (scaling_mode) {
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case SCALING_MODE_STRETCH:
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cairo_scale(window->cairo,
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(double) window->width / width,
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(double) window->height / height);
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cairo_set_source_surface(window->cairo, image, 0, 0);
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break;
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case SCALING_MODE_FILL:
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{
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double window_ratio = (double) window->width / window->height;
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double bg_ratio = width / height;
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if (window_ratio > bg_ratio) {
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double scale = (double) window->width / width;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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0,
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(double) window->height/2 / scale - height/2);
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} else {
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double scale = (double) window->height / height;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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(double) window->width/2 / scale - width/2,
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0);
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}
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break;
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}
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case SCALING_MODE_FIT:
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{
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double window_ratio = (double) window->width / window->height;
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double bg_ratio = width / height;
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if (window_ratio > bg_ratio) {
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double scale = (double) window->height / height;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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(double) window->width/2 / scale - width/2,
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0);
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} else {
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double scale = (double) window->width / width;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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0,
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(double) window->height/2 / scale - height/2);
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}
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break;
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}
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case SCALING_MODE_CENTER:
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cairo_set_source_surface(window->cairo, image,
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(double) window->width/2 - width/2,
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(double) window->height/2 - height/2);
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break;
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case SCALING_MODE_TILE:
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{
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cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
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cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
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cairo_set_source(window->cairo, pattern);
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break;
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}
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}
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cairo_paint(window->cairo);
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}
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cairo_surface_t *load_image(char *image_path) {
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cairo_surface_t *image = NULL;
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#ifdef WITH_GDK_PIXBUF
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GError *err = NULL;
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GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(image_path, &err);
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if (!pixbuf) {
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sway_abort("Failed to load background image: %s", err->message);
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}
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image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
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g_object_unref(pixbuf);
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#else
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image = cairo_image_surface_create_from_png(image_path);
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#endif //WITH_GDK_PIXBUF
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if (!image) {
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sway_abort("Failed to read background image.");
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}
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return image;
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}
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int main(int argc, char **argv) {
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const char *scaling_mode_str = "fit", *socket_path = NULL;
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int i;
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void *images = NULL;
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render_data.num_images = 0;
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render_data.color_set = 0;
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render_data.color = 0xFFFFFFFF;
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render_data.auth_state = AUTH_STATE_IDLE;
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init_log(L_INFO);
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// Install SIGALARM handler (for hiding the typing indicator)
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signal(SIGALRM, sigalarm_handler);
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static struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{"color", required_argument, NULL, 'c'},
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{"image", required_argument, NULL, 'i'},
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{"scaling", required_argument, NULL, 's'},
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{"tiling", no_argument, NULL, 't'},
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{"version", no_argument, NULL, 'v'},
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{"socket", required_argument, NULL, 'p'},
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{"no-unlock-indicator", no_argument, NULL, 'u'},
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{"daemonize", no_argument, NULL, 'f'},
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{0, 0, 0, 0}
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};
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const char *usage =
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"Usage: swaylock [options...]\n"
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"\n"
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" -h, --help Show help message and quit.\n"
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" -c, --color <rrggbb[aa]> Turn the screen into the given color instead of white.\n"
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" -s, --scaling Scaling mode: stretch, fill, fit, center, tile.\n"
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" -t, --tiling Same as --scaling=tile.\n"
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" -v, --version Show the version number and quit.\n"
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" -i, --image [<output>:]<path> Display the given image.\n"
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" -u, --no-unlock-indicator Disable the unlock indicator.\n"
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" -f, --daemonize Detach from the controlling terminal.\n"
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" --socket <socket> Use the specified socket.\n";
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registry = registry_poll();
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int c;
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while (1) {
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int option_index = 0;
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c = getopt_long(argc, argv, "hc:i:s:tvuf", long_options, &option_index);
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if (c == -1) {
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break;
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}
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switch (c) {
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case 'c':
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{
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int colorlen = strlen(optarg);
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if (colorlen < 6 || colorlen == 7 || colorlen > 8) {
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sway_log(L_ERROR, "color must be specified in 3 or 4 byte format, i.e. rrggbb or rrggbbaa");
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exit(EXIT_FAILURE);
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}
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render_data.color = strtol(optarg, NULL, 16);
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render_data.color_set = 1;
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if (colorlen == 6) {
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render_data.color <<= 8;
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render_data.color |= 0xFF;
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}
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break;
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}
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case 'i':
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{
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char *image_path = strchr(optarg, ':');
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if (image_path == NULL) {
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if (render_data.num_images == 0) {
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// Provided image without output
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render_data.image = load_image(optarg);
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render_data.num_images = -1;
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} else {
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sway_log(L_ERROR, "output must be defined for all --images or no --images");
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exit(EXIT_FAILURE);
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}
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} else {
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// Provided image for all outputs
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if (render_data.num_images == 0) {
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images = calloc(registry->outputs->length, sizeof(char*) * 2);
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} else if (render_data.num_images == -1) {
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sway_log(L_ERROR, "output must be defined for all --images or no --images");
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exit(EXIT_FAILURE);
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}
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image_path[0] = '\0';
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((char**) images)[render_data.num_images * 2] = optarg;
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((char**) images)[render_data.num_images++ * 2 + 1] = ++image_path;
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}
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break;
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}
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case 's':
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scaling_mode_str = optarg;
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break;
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case 't':
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scaling_mode_str = "tile";
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break;
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case 'p':
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socket_path = optarg;
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break;
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case 'v':
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#if defined SWAY_GIT_VERSION && defined SWAY_GIT_BRANCH && defined SWAY_VERSION_DATE
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fprintf(stdout, "swaylock version %s (%s, branch \"%s\")\n", SWAY_GIT_VERSION, SWAY_VERSION_DATE, SWAY_GIT_BRANCH);
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#else
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fprintf(stdout, "version not detected\n");
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#endif
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exit(EXIT_SUCCESS);
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break;
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case 'u':
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show_indicator = false;
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break;
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case 'f':
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daemon(0, 0);
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break;
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default:
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fprintf(stderr, "%s", usage);
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exit(EXIT_FAILURE);
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}
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}
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render_data.scaling_mode = SCALING_MODE_STRETCH;
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if (strcmp(scaling_mode_str, "stretch") == 0) {
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render_data.scaling_mode = SCALING_MODE_STRETCH;
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} else if (strcmp(scaling_mode_str, "fill") == 0) {
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render_data.scaling_mode = SCALING_MODE_FILL;
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} else if (strcmp(scaling_mode_str, "fit") == 0) {
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render_data.scaling_mode = SCALING_MODE_FIT;
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} else if (strcmp(scaling_mode_str, "center") == 0) {
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render_data.scaling_mode = SCALING_MODE_CENTER;
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} else if (strcmp(scaling_mode_str, "tile") == 0) {
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render_data.scaling_mode = SCALING_MODE_TILE;
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} else {
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sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
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}
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password_size = 1024;
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password = malloc(password_size);
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password[0] = '\0';
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render_data.surfaces = create_list();
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if (!socket_path) {
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socket_path = get_socketpath();
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if (!socket_path) {
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sway_abort("Unable to retrieve socket path");
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}
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}
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if (!registry) {
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sway_abort("Unable to connect to wayland compositor");
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}
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if (!registry->swaylock) {
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sway_abort("swaylock requires the compositor to support the swaylock extension.");
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}
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if (registry->pointer) {
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// We don't want swaylock to have a pointer
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wl_pointer_destroy(registry->pointer);
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registry->pointer = NULL;
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}
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for (i = 0; i < registry->outputs->length; ++i) {
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struct output_state *output = registry->outputs->items[i];
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struct window *window = window_setup(registry, output->width, output->height, true);
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if (!window) {
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sway_abort("Failed to create surfaces.");
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}
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list_add(render_data.surfaces, window);
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}
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registry->input->notify = notify_key;
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// Different background for the output
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if (render_data.num_images >= 1) {
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char **displays_paths = images;
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render_data.images = calloc(registry->outputs->length, sizeof(cairo_surface_t*));
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int socketfd = ipc_open_socket(socket_path);
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uint32_t len = 0;
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char *outputs = ipc_single_command(socketfd, IPC_GET_OUTPUTS, "", &len);
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struct json_object *json_outputs = json_tokener_parse(outputs);
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for (i = 0; i < registry->outputs->length; ++i) {
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if (displays_paths[i * 2] != NULL) {
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for (int j = 0;; ++j) {
|
|
if (j >= json_object_array_length(json_outputs)) {
|
|
sway_log(L_ERROR, "%s is not an extant output", displays_paths[i * 2]);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
struct json_object *dsp_name, *at_j = json_object_array_get_idx(json_outputs, j);
|
|
if (!json_object_object_get_ex(at_j, "name", &dsp_name)) {
|
|
sway_abort("output doesn't have a name field");
|
|
}
|
|
if (!strcmp(displays_paths[i * 2], json_object_get_string(dsp_name))) {
|
|
render_data.images[j] = load_image(displays_paths[i * 2 + 1]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
json_object_put(json_outputs);
|
|
close(socketfd);
|
|
free(displays_paths);
|
|
}
|
|
|
|
render(&render_data);
|
|
bool locked = false;
|
|
while (wl_display_dispatch(registry->display) != -1) {
|
|
if (!locked) {
|
|
for (i = 0; i < registry->outputs->length; ++i) {
|
|
struct output_state *output = registry->outputs->items[i];
|
|
struct window *window = render_data.surfaces->items[i];
|
|
lock_set_lock_surface(registry->swaylock, output->output, window->surface);
|
|
}
|
|
locked = true;
|
|
}
|
|
}
|
|
|
|
// Free surfaces
|
|
if (render_data.num_images == -1) {
|
|
cairo_surface_destroy(render_data.image);
|
|
} else if (render_data.num_images >= 1) {
|
|
for (i = 0; i < registry->outputs->length; ++i) {
|
|
if (render_data.images[i] != NULL) {
|
|
cairo_surface_destroy(render_data.images[i]);
|
|
}
|
|
}
|
|
free(render_data.images);
|
|
}
|
|
|
|
for (i = 0; i < render_data.surfaces->length; ++i) {
|
|
struct window *window = render_data.surfaces->items[i];
|
|
window_teardown(window);
|
|
}
|
|
list_free(render_data.surfaces);
|
|
registry_teardown(registry);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void render(struct render_data *render_data) {
|
|
int i;
|
|
for (i = 0; i < render_data->surfaces->length; ++i) {
|
|
sway_log(L_DEBUG, "Render surface %d of %d", i, render_data->surfaces->length);
|
|
struct window *window = render_data->surfaces->items[i];
|
|
if (!window_prerender(window) || !window->cairo) {
|
|
continue;
|
|
}
|
|
|
|
// Reset the transformation matrix
|
|
cairo_identity_matrix(window->cairo);
|
|
|
|
if (render_data->num_images == 0 || render_data->color_set) {
|
|
render_color(window, render_data->color);
|
|
}
|
|
|
|
if (render_data->num_images == -1) {
|
|
// One background for all
|
|
render_image(window, render_data->image, render_data->scaling_mode);
|
|
} else if (render_data->num_images >= 1) {
|
|
// Different backgrounds
|
|
if (render_data->images[i] != NULL) {
|
|
render_image(window, render_data->images[i], render_data->scaling_mode);
|
|
}
|
|
}
|
|
|
|
// Reset the transformation matrix again
|
|
cairo_identity_matrix(window->cairo);
|
|
|
|
// Draw specific values (copied from i3)
|
|
const int ARC_RADIUS = 50;
|
|
const int ARC_THICKNESS = 10;
|
|
const float TYPE_INDICATOR_RANGE = M_PI / 3.0f;
|
|
const float TYPE_INDICATOR_BORDER_THICKNESS = M_PI / 128.0f;
|
|
|
|
// Add visual indicator
|
|
if (show_indicator && render_data->auth_state != AUTH_STATE_IDLE) {
|
|
// Draw circle
|
|
cairo_set_line_width(window->cairo, ARC_THICKNESS);
|
|
cairo_arc(window->cairo, window->width/2, window->height/2, ARC_RADIUS, 0, 2 * M_PI);
|
|
switch (render_data->auth_state) {
|
|
case AUTH_STATE_INPUT:
|
|
case AUTH_STATE_BACKSPACE: {
|
|
cairo_set_source_rgba(window->cairo, 0, 0, 0, 0.75);
|
|
cairo_fill_preserve(window->cairo);
|
|
cairo_set_source_rgb(window->cairo, 51.0 / 255, 125.0 / 255, 0);
|
|
cairo_stroke(window->cairo);
|
|
} break;
|
|
case AUTH_STATE_VALIDATING: {
|
|
cairo_set_source_rgba(window->cairo, 0, 114.0 / 255, 255.0 / 255, 0.75);
|
|
cairo_fill_preserve(window->cairo);
|
|
cairo_set_source_rgb(window->cairo, 51.0 / 255, 0, 250.0 / 255);
|
|
cairo_stroke(window->cairo);
|
|
} break;
|
|
case AUTH_STATE_INVALID: {
|
|
cairo_set_source_rgba(window->cairo, 250.0 / 255, 0, 0, 0.75);
|
|
cairo_fill_preserve(window->cairo);
|
|
cairo_set_source_rgb(window->cairo, 125.0 / 255, 51.0 / 255, 0);
|
|
cairo_stroke(window->cairo);
|
|
} break;
|
|
default: break;
|
|
}
|
|
|
|
// Draw a message
|
|
char *text = NULL;
|
|
cairo_set_source_rgb(window->cairo, 0, 0, 0);
|
|
cairo_set_font_size(window->cairo, ARC_RADIUS/3.0f);
|
|
switch (render_data->auth_state) {
|
|
case AUTH_STATE_VALIDATING:
|
|
text = "verifying";
|
|
break;
|
|
case AUTH_STATE_INVALID:
|
|
text = "wrong";
|
|
break;
|
|
default: break;
|
|
}
|
|
|
|
if (text) {
|
|
cairo_text_extents_t extents;
|
|
double x, y;
|
|
|
|
cairo_text_extents(window->cairo, text, &extents);
|
|
x = window->width/2 - ((extents.width/2) + extents.x_bearing);
|
|
y = window->height/2 - ((extents.height/2) + extents.y_bearing);
|
|
|
|
cairo_move_to(window->cairo, x, y);
|
|
cairo_show_text(window->cairo, text);
|
|
cairo_close_path(window->cairo);
|
|
cairo_new_sub_path(window->cairo);
|
|
}
|
|
|
|
// Typing indicator: Highlight random part on keypress
|
|
if (render_data->auth_state == AUTH_STATE_INPUT || render_data->auth_state == AUTH_STATE_BACKSPACE) {
|
|
static double highlight_start = 0;
|
|
highlight_start += (rand() % (int)(M_PI * 100)) / 100.0 + M_PI * 0.5;
|
|
cairo_arc(window->cairo, window->width/2, window->height/2, ARC_RADIUS, highlight_start, highlight_start + TYPE_INDICATOR_RANGE);
|
|
if (render_data->auth_state == AUTH_STATE_INPUT) {
|
|
cairo_set_source_rgb(window->cairo, 51.0 / 255, 219.0 / 255, 0);
|
|
} else {
|
|
cairo_set_source_rgb(window->cairo, 219.0 / 255, 51.0 / 255, 0);
|
|
}
|
|
cairo_stroke(window->cairo);
|
|
|
|
// Draw borders
|
|
cairo_set_source_rgb(window->cairo, 0, 0, 0);
|
|
cairo_arc(window->cairo, window->width/2, window->height/2, ARC_RADIUS, highlight_start, highlight_start + TYPE_INDICATOR_BORDER_THICKNESS);
|
|
cairo_stroke(window->cairo);
|
|
|
|
cairo_arc(window->cairo, window->width/2, window->height/2, ARC_RADIUS, highlight_start + TYPE_INDICATOR_RANGE, (highlight_start + TYPE_INDICATOR_RANGE) + TYPE_INDICATOR_BORDER_THICKNESS);
|
|
cairo_stroke(window->cairo);
|
|
}
|
|
|
|
// Draw inner + outer border of the circle
|
|
cairo_set_source_rgb(window->cairo, 0, 0, 0);
|
|
cairo_set_line_width(window->cairo, 2.0);
|
|
cairo_arc(window->cairo, window->width/2, window->height/2, ARC_RADIUS - ARC_THICKNESS/2, 0, 2*M_PI);
|
|
cairo_stroke(window->cairo);
|
|
cairo_arc(window->cairo, window->width/2, window->height/2, ARC_RADIUS + ARC_THICKNESS/2, 0, 2*M_PI);
|
|
cairo_stroke(window->cairo);
|
|
}
|
|
window_render(window);
|
|
}
|
|
}
|