mirror of
https://github.com/swaywm/sway
synced 2024-11-18 00:24:17 +01:00
387 lines
9.8 KiB
C
387 lines
9.8 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 <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 "client/window.h"
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#include "client/registry.h"
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#include "client/cairo.h"
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#include "log.h"
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list_t *surfaces;
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struct registry *registry;
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enum scaling_mode {
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SCALING_MODE_STRETCH,
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SCALING_MODE_FILL,
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SCALING_MODE_FIT,
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SCALING_MODE_CENTER,
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SCALING_MODE_TILE,
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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 < surfaces->length; ++i) {
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struct window *window = surfaces->items[i];
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window_teardown(window);
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}
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list_free(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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* password will be zeroed out.
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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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if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
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switch (sym) {
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case XKB_KEY_Return:
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if (verify_password()) {
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exit(0);
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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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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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}
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break;
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}
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default:
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{
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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(password, password_size);
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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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}
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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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window_render(window);
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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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window_render(window);
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}
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int main(int argc, char **argv) {
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char *image_path = NULL;
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char *scaling_mode_str = "fit";
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uint32_t color = 0xFFFFFFFF;
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init_log(L_INFO);
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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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{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 <path> Display the given image.\n";
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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:tv", 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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fprintf(stderr, "color must be specified in 3 or 4 byte format, e.g. ff0000 or ff0000ff\n");
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exit(EXIT_FAILURE);
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}
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color = strtol(optarg, NULL, 16);
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if (colorlen == 6) {
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color <<= 8;
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color |= 0xFF;
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}
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sway_log(L_DEBUG, "color: 0x%x", color);
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break;
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}
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case 'i':
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image_path = optarg;
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break;
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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 '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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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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enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
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if (strcmp(scaling_mode_str, "stretch") == 0) {
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scaling_mode = SCALING_MODE_STRETCH;
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} else if (strcmp(scaling_mode_str, "fill") == 0) {
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scaling_mode = SCALING_MODE_FILL;
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} else if (strcmp(scaling_mode_str, "fit") == 0) {
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scaling_mode = SCALING_MODE_FIT;
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} else if (strcmp(scaling_mode_str, "center") == 0) {
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scaling_mode = SCALING_MODE_CENTER;
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} else if (strcmp(scaling_mode_str, "tile") == 0) {
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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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surfaces = create_list();
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registry = registry_poll();
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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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int i;
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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(surfaces, window);
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}
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registry->input->notify = notify_key;
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cairo_surface_t *image = NULL;
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if (image_path) {
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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.");
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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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cairo_surface_t *image = cairo_image_surface_create_from_png(argv[1]);
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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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}
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for (i = 0; i < surfaces->length; ++i) {
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struct window *window = surfaces->items[i];
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if (!window_prerender(window) || !window->cairo) {
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continue;
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}
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if (image) {
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render_image(window, image, scaling_mode);
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} else {
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render_color(window, color);
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}
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}
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if (image) {
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cairo_surface_destroy(image);
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}
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bool locked = false;
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while (wl_display_dispatch(registry->display) != -1) {
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if (!locked) {
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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 = surfaces->items[i];
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lock_set_lock_surface(registry->swaylock, output->output, window->surface);
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}
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locked = true;
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}
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}
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for (i = 0; i < surfaces->length; ++i) {
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struct window *window = surfaces->items[i];
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window_teardown(window);
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}
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list_free(surfaces);
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registry_teardown(registry);
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return 0;
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}
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