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enlightenment/src/bin/e_desklock.c

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#include "e.h"
#ifdef HAVE_PAM
# include <security/pam_appl.h>
# include <pwd.h>
#endif
#define E_DESKLOCK_STATE_DEFAULT 0
#define E_DESKLOCK_STATE_CHECKING 1
#define E_DESKLOCK_STATE_INVALID 2
#define PASSWD_LEN 256
/**************************** private data ******************************/
typedef struct _E_Desklock_Data E_Desklock_Data;
typedef struct _E_Desklock_Popup_Data E_Desklock_Popup_Data;
#ifdef HAVE_PAM
typedef struct _E_Desklock_Auth E_Desklock_Auth;
#endif
typedef struct _E_Desklock_Run E_Desklock_Run;
struct _E_Desklock_Popup_Data
{
E_Popup *popup_wnd;
Evas_Object *bg_object;
Evas_Object *login_box;
};
struct _E_Desklock_Data
{
Eina_List *elock_wnd_list;
Ecore_X_Window elock_wnd;
Eina_List *handlers;
Ecore_Event_Handler *move_handler;
Ecore_X_Window elock_grab_break_wnd;
char passwd[PASSWD_LEN];
int state;
Eina_Bool selected : 1;
};
struct _E_Desklock_Run
{
E_Order *desk_run;
int position;
};
#ifdef HAVE_PAM
struct _E_Desklock_Auth
{
struct
{
struct pam_conv conv;
pam_handle_t *handle;
} pam;
char user[4096];
char passwd[4096];
};
#endif
static E_Desklock_Data *edd = NULL;
static E_Zone *last_active_zone = NULL;
#ifdef HAVE_PAM
static Ecore_Event_Handler *_e_desklock_exit_handler = NULL;
static pid_t _e_desklock_child_pid = -1;
#endif
static Ecore_Exe *_e_custom_desklock_exe = NULL;
static Ecore_Event_Handler *_e_custom_desklock_exe_handler = NULL;
static Ecore_Poller *_e_desklock_idle_poller = NULL;
static int _e_desklock_user_idle = 0;
static double _e_desklock_autolock_time = 0.0;
static E_Dialog *_e_desklock_ask_presentation_dia = NULL;
static int _e_desklock_ask_presentation_count = 0;
static Ecore_Event_Handler *_e_desklock_run_handler = NULL;
static Ecore_Job *job = NULL;
static Eina_List *tasks = NULL;
/***********************************************************************/
static Eina_Bool _e_desklock_cb_key_down(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_mouse_move(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_custom_desklock_exit(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_idle_poller(void *data);
static Eina_Bool _e_desklock_cb_window_stack(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_zone_add(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_zone_del(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_zone_move_resize(void *data, int type, void *event);
static Eina_Bool _e_desklock_cb_run(void *data, int type, void *event);
static void _e_desklock_popup_free(E_Desklock_Popup_Data *edp);
static void _e_desklock_popup_add(E_Zone *zone);
static void _e_desklock_login_box_add(E_Desklock_Popup_Data *edp);
static void _e_desklock_select(void);
static void _e_desklock_unselect(void);
static void _e_desklock_null(void);
static void _e_desklock_passwd_update(void);
static void _e_desklock_backspace(void);
static void _e_desklock_delete(void);
static int _e_desklock_zone_num_get(void);
static int _e_desklock_check_auth(void);
static void _e_desklock_state_set(int state);
static Eina_Bool _e_desklock_state = EINA_FALSE;
#ifdef HAVE_PAM
static Eina_Bool _e_desklock_cb_exit(void *data, int type, void *event);
static int _desklock_auth(char *passwd);
static int _desklock_pam_init(E_Desklock_Auth *da);
static int _desklock_auth_pam_conv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr);
static char *_desklock_auth_get_current_user(void);
static char *_desklock_auth_get_current_host(void);
#endif
static void _e_desklock_ask_presentation_mode(void);
EAPI int E_EVENT_DESKLOCK = 0;
EINTERN int
e_desklock_init(void)
{
Eina_List *l;
E_Config_Desklock_Background *bg;
/* A poller to tick every 256 ticks, watching for an idle user */
_e_desklock_idle_poller = ecore_poller_add(ECORE_POLLER_CORE, 256,
_e_desklock_cb_idle_poller, NULL);
if (e_config->desklock_background)
e_filereg_register(e_config->desklock_background);
EINA_LIST_FOREACH(e_config->desklock_backgrounds, l, bg)
e_filereg_register(bg->file);
E_EVENT_DESKLOCK = ecore_event_type_new();
_e_desklock_run_handler = ecore_event_handler_add(E_EVENT_DESKLOCK,
_e_desklock_cb_run, NULL);
return 1;
}
EINTERN int
e_desklock_shutdown(void)
{
Eina_Bool waslocked = EINA_FALSE;
E_Desklock_Run *task;
Eina_List *l;
E_Config_Desklock_Background *bg;
if (edd) waslocked = EINA_TRUE;
if (!x_fatal)
e_desklock_hide();
if (e_config->desklock_background)
e_filereg_deregister(e_config->desklock_background);
if (waslocked) e_util_env_set("E_DESKLOCK_LOCKED", "locked");
ecore_event_handler_del(_e_desklock_run_handler);
_e_desklock_run_handler = NULL;
if (job) ecore_job_del(job);
job = NULL;
if (e_config->desklock_background)
e_filereg_deregister(e_config->desklock_background);
EINA_LIST_FOREACH(e_config->desklock_backgrounds, l, bg)
e_filereg_deregister(bg->file);
EINA_LIST_FREE(tasks, task)
{
e_object_del(E_OBJECT(task->desk_run));
free(task);
}
return 1;
}
static const char *
_user_wallpaper_get(E_Zone *zone)
{
const E_Config_Desktop_Background *cdbg;
const Eina_List *l;
E_Desk *desk;
desk = e_desk_current_get(zone);
EINA_LIST_FOREACH(e_config->desktop_backgrounds, l, cdbg)
{
if ((cdbg->container > -1) && (cdbg->container != (int)zone->container->num)) continue;
if ((cdbg->zone > -1) && (cdbg->zone != (int)zone->num)) continue;
if ((cdbg->desk_x > -1) && (cdbg->desk_x != desk->x)) continue;
if ((cdbg->desk_y > -1) && (cdbg->desk_y != desk->y)) continue;
if (cdbg->file) return cdbg->file;
}
if (e_config->desktop_default_background)
return e_config->desktop_default_background;
return e_theme_edje_file_get("base/theme/desklock", "e/desklock/background");
}
EAPI int
e_desklock_show_autolocked(void)
{
if (e_util_fullscreen_current_any()) return 0;
if (_e_desklock_autolock_time < 1.0)
_e_desklock_autolock_time = ecore_loop_time_get();
return e_desklock_show(EINA_FALSE);
}
EAPI int
e_desklock_show(Eina_Bool suspend)
{
Eina_List *managers, *l, *l2, *l3;
E_Manager *man;
int total_zone_num;
E_Event_Desklock *ev;
if (_e_custom_desklock_exe) return 0;
if (e_config->desklock_use_custom_desklock && e_config->desklock_custom_desklock_cmd && e_config->desklock_custom_desklock_cmd[0])
{
e_menu_hide_all();
_e_custom_desklock_exe_handler =
ecore_event_handler_add(ECORE_EXE_EVENT_DEL,
_e_desklock_cb_custom_desklock_exit, NULL);
if (e_config->desklock_language)
e_intl_language_set(e_config->desklock_language);
if (e_config->xkb.desklock_layout)
e_xkb_layout_set(e_config->xkb.desklock_layout);
_e_custom_desklock_exe =
ecore_exe_run(e_config->desklock_custom_desklock_cmd, NULL);
_e_desklock_state = EINA_TRUE;
return 1;
}
#ifndef HAVE_PAM
e_util_dialog_show(_("Error - no PAM support"),
_("No PAM support was built into Enlightenment, so<br>"
"desk locking is disabled."));
return 0;
#endif
if (edd) return 0;
#ifdef HAVE_PAM
if (e_config->desklock_auth_method == 1)
{
#endif
if (!e_config->desklock_personal_passwd)
{
E_Zone *zone;
zone = e_util_zone_current_get(e_manager_current_get());
if (zone)
e_configure_registry_call("screen/screen_lock", zone->container, NULL);
return 0;
}
#ifdef HAVE_PAM
}
#endif
edd = E_NEW(E_Desklock_Data, 1);
if (!edd) return 0;
edd->elock_wnd = ecore_x_window_input_new(e_manager_current_get()->root, 0, 0, 1, 1);
ecore_x_window_show(edd->elock_wnd);
managers = e_manager_list();
e_menu_hide_all();
if (!e_grabinput_get(edd->elock_wnd, 0, edd->elock_wnd))
{
EINA_LIST_FOREACH(managers, l, man)
{
Ecore_X_Window *windows;
int wnum;
windows = ecore_x_window_children_get(man->root, &wnum);
if (windows)
{
int i;
for (i = 0; i < wnum; i++)
{
Ecore_X_Window_Attributes att;
memset(&att, 0, sizeof(Ecore_X_Window_Attributes));
ecore_x_window_attributes_get(windows[i], &att);
if (att.visible)
{
ecore_x_window_hide(windows[i]);
if (e_grabinput_get(edd->elock_wnd, 0, edd->elock_wnd))
{
edd->elock_grab_break_wnd = windows[i];
free(windows);
goto works;
}
ecore_x_window_show(windows[i]);
}
}
free(windows);
}
}
/* everything failed - can't lock */
e_util_dialog_show(_("Lock Failed"),
_("Locking the desktop failed because some application<br>"
"has grabbed either the keyboard or the mouse or both<br>"
"and their grab is unable to be broken."));
ecore_x_window_free(edd->elock_wnd);
E_FREE(edd);
return 0;
}
works:
if (e_config->desklock_language)
e_intl_language_set(e_config->desklock_language);
if (e_config->xkb.desklock_layout)
e_xkb_layout_set(e_config->xkb.desklock_layout);
total_zone_num = _e_desklock_zone_num_get();
EINA_LIST_FOREACH(managers, l, man)
{
E_Container *con;
EINA_LIST_FOREACH(man->containers, l2, con)
{
E_Zone *zone;
EINA_LIST_FOREACH(con->zones, l3, zone)
_e_desklock_popup_add(zone);
}
}
/* handlers */
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(ECORE_EVENT_KEY_DOWN,
_e_desklock_cb_key_down, NULL));
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(ECORE_X_EVENT_WINDOW_STACK,
_e_desklock_cb_window_stack, NULL));
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(ECORE_X_EVENT_WINDOW_CONFIGURE,
_e_desklock_cb_window_stack, NULL));
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(ECORE_X_EVENT_WINDOW_CREATE,
_e_desklock_cb_window_stack, NULL));
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(E_EVENT_ZONE_ADD,
_e_desklock_cb_zone_add, NULL));
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(E_EVENT_ZONE_DEL,
_e_desklock_cb_zone_del, NULL));
edd->handlers =
eina_list_append(edd->handlers,
ecore_event_handler_add(E_EVENT_ZONE_MOVE_RESIZE,
_e_desklock_cb_zone_move_resize, NULL));
if ((total_zone_num > 1) && (e_config->desklock_login_box_zone == -2))
edd->move_handler = ecore_event_handler_add(ECORE_EVENT_MOUSE_MOVE, _e_desklock_cb_mouse_move, NULL);
_e_desklock_passwd_update();
ev = E_NEW(E_Event_Desklock, 1);
ev->on = 1;
ev->suspend = suspend;
ecore_event_add(E_EVENT_DESKLOCK, ev, NULL, NULL);
e_util_env_set("E_DESKLOCK_LOCKED", "locked");
_e_desklock_state = EINA_TRUE;
return 1;
}
EAPI void
e_desklock_hide(void)
{
E_Desklock_Popup_Data *edp;
E_Event_Desklock *ev;
if ((!edd) && (!_e_custom_desklock_exe)) return;
if (e_config->desklock_language)
e_intl_language_set(e_config->language);
if (e_config->xkb.cur_layout == e_config->xkb.desklock_layout)
{
if (e_config->xkb.selected_layout)
e_xkb_layout_set(e_config->xkb.selected_layout);
}
_e_desklock_state = EINA_FALSE;
ev = E_NEW(E_Event_Desklock, 1);
ev->on = 0;
ev->suspend = 1;
ecore_event_add(E_EVENT_DESKLOCK, ev, NULL, NULL);
if (e_config->desklock_use_custom_desklock)
{
_e_custom_desklock_exe = NULL;
return;
}
if (!edd) return;
if (edd->elock_grab_break_wnd)
ecore_x_window_show(edd->elock_grab_break_wnd);
EINA_LIST_FREE(edd->elock_wnd_list, edp)
_e_desklock_popup_free(edp);
E_FREE_LIST(edd->handlers, ecore_event_handler_del);
if (edd->move_handler) ecore_event_handler_del(edd->move_handler);
e_grabinput_release(edd->elock_wnd, edd->elock_wnd);
ecore_x_window_free(edd->elock_wnd);
E_FREE(edd);
edd = NULL;
if (_e_desklock_autolock_time > 0.0)
{
if ((e_config->desklock_ask_presentation) &&
(e_config->desklock_ask_presentation_timeout > 0.0))
{
double max, now;
now = ecore_loop_time_get();
max = _e_desklock_autolock_time + e_config->desklock_ask_presentation_timeout;
if (now <= max)
_e_desklock_ask_presentation_mode();
}
else
_e_desklock_ask_presentation_count = 0;
_e_desklock_autolock_time = 0.0;
}
e_util_env_set("E_DESKLOCK_LOCKED", "freefreefree");
}
static void
_e_desklock_popup_add(E_Zone *zone)
{
E_Desklock_Popup_Data *edp;
E_Config_Desklock_Background *cbg;
const char *bg;
cbg = eina_list_nth(e_config->desklock_backgrounds, zone->num);
bg = cbg ? cbg->file : NULL;
edp = E_NEW(E_Desklock_Popup_Data, 1);
if (!edp)
{
CRI("DESKLOCK FAILED FOR ZONE %d!", zone->num);
return;
}
edp->popup_wnd = e_popup_new(zone, 0, 0, zone->w, zone->h);
e_popup_name_set(edp->popup_wnd, "_e_popup_desklock");
ecore_evas_title_set(edp->popup_wnd->ecore_evas, "E Desklock");
evas_event_feed_mouse_move(edp->popup_wnd->evas, -1000000, -1000000,
ecore_x_current_time_get(), NULL);
e_popup_layer_set(edp->popup_wnd, E_LAYER_PRIO);
ecore_evas_raise(edp->popup_wnd->ecore_evas);
evas_event_freeze(edp->popup_wnd->evas);
edp->bg_object = edje_object_add(edp->popup_wnd->evas);
if ((!bg) || (!strcmp(bg, "theme_desklock_background")))
{
e_theme_edje_object_set(edp->bg_object,
"base/theme/desklock",
"e/desklock/background");
}
else if (!strcmp(bg, "theme_background"))
{
e_theme_edje_object_set(edp->bg_object,
"base/theme/backgrounds",
"e/desktop/background");
}
else
{
const char *f;
if (!strcmp(bg, "user_background"))
f = _user_wallpaper_get(zone);
else
f = bg;
if (e_util_edje_collection_exists(f, "e/desklock/background"))
{
edje_object_file_set(edp->bg_object, f, "e/desklock/background");
}
else
{
if (!edje_object_file_set(edp->bg_object,
f, "e/desktop/background"))
{
edje_object_file_set(edp->bg_object,
e_theme_edje_file_get("base/theme/desklock",
"e/desklock/background"),
"e/desklock/background");
}
}
}
evas_object_move(edp->bg_object, 0, 0);
evas_object_resize(edp->bg_object, zone->w, zone->h);
evas_object_show(edp->bg_object);
_e_desklock_login_box_add(edp);
e_popup_edje_bg_object_set(edp->popup_wnd, edp->bg_object);
evas_event_thaw(edp->popup_wnd->evas);
e_popup_show(edp->popup_wnd);
edd->elock_wnd_list = eina_list_append(edd->elock_wnd_list, edp);
}
static void
_e_desklock_login_box_add(E_Desklock_Popup_Data *edp)
{
int mw, mh;
E_Zone *zone = edp->popup_wnd->zone;
E_Zone *current_zone;
int total_zone_num;
last_active_zone = current_zone = e_zone_current_get(e_container_current_get(e_manager_current_get()));
total_zone_num = _e_desklock_zone_num_get();
if (total_zone_num > 1)
{
if ((e_config->desklock_login_box_zone == -2) && (zone != current_zone))
return;
if ((e_config->desklock_login_box_zone > -1) && (e_config->desklock_login_box_zone != (int)eina_list_count(edd->elock_wnd_list)))
return;
}
edp->login_box = edje_object_add(edp->popup_wnd->evas);
e_theme_edje_object_set(edp->login_box,
"base/theme/desklock",
"e/desklock/login_box");
edje_object_part_text_set(edp->login_box, "e.text.title",
_("Please enter your unlock password"));
edje_object_size_min_calc(edp->login_box, &mw, &mh);
if (edje_object_part_exists(edp->bg_object, "e.swallow.login_box"))
{
edje_extern_object_min_size_set(edp->login_box, mw, mh);
edje_object_part_swallow(edp->bg_object, "e.swallow.login_box", edp->login_box);
}
else
{
evas_object_resize(edp->login_box, mw, mh);
evas_object_move(edp->login_box,
((zone->w - mw) / 2),
((zone->h - mh) / 2));
}
evas_object_show(edp->login_box);
}
static void
_e_desklock_popup_free(E_Desklock_Popup_Data *edp)
{
if (!edp) return;
e_popup_hide(edp->popup_wnd);
evas_event_freeze(edp->popup_wnd->evas);
evas_object_del(edp->bg_object);
evas_object_del(edp->login_box);
evas_event_thaw(edp->popup_wnd->evas);
e_object_del(E_OBJECT(edp->popup_wnd));
free(edp);
}
static Eina_Bool
_e_desklock_cb_window_stack(void *data __UNUSED__,
int type,
void *event)
{
Ecore_X_Window win, win2 = 0;
E_Desklock_Popup_Data *edp;
Eina_List *l;
Eina_Bool raise_win = EINA_TRUE;
if (!edd) return ECORE_CALLBACK_PASS_ON;
if (type == ECORE_X_EVENT_WINDOW_STACK)
win = ((Ecore_X_Event_Window_Stack *)event)->event_win;
else if (type == ECORE_X_EVENT_WINDOW_CONFIGURE)
{
win = ((Ecore_X_Event_Window_Configure *)event)->event_win;
win2 = ((Ecore_X_Event_Window_Configure *)event)->win;
}
else if (type == ECORE_X_EVENT_WINDOW_CREATE)
win = ((Ecore_X_Event_Window_Create *)event)->win;
else
return ECORE_CALLBACK_PASS_ON;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
{
if ((win == edp->popup_wnd->evas_win) ||
((win2) && (win2 == edp->popup_wnd->evas_win)))
{
raise_win = EINA_FALSE;
break;
}
}
if (raise_win)
{
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
ecore_evas_raise(edp->popup_wnd->ecore_evas);
}
return ECORE_CALLBACK_PASS_ON;
}
EAPI Eina_Bool
e_desklock_state_get(void)
{
return _e_desklock_state;
}
static Eina_List *
_e_desklock_popup_find(E_Zone *zone)
{
Eina_List *l;
E_Desklock_Popup_Data *edp;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
if (edp->popup_wnd->zone == zone) return l;
return NULL;
}
static Eina_Bool
_e_desklock_cb_zone_add(void *data __UNUSED__,
int type __UNUSED__,
void *event)
{
E_Event_Zone_Add *ev = event;
if (!edd) return ECORE_CALLBACK_PASS_ON;
if ((!edd->move_handler) && (e_config->desklock_login_box_zone == -2))
edd->move_handler = ecore_event_handler_add(ECORE_EVENT_MOUSE_MOVE, _e_desklock_cb_mouse_move, NULL);
if (!_e_desklock_popup_find(ev->zone)) _e_desklock_popup_add(ev->zone);
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_e_desklock_cb_zone_del(void *data __UNUSED__,
int type __UNUSED__,
void *event)
{
E_Event_Zone_Del *ev = event;
Eina_List *l;
if (!edd) return ECORE_CALLBACK_PASS_ON;
if ((eina_list_count(e_container_current_get(e_manager_current_get())->zones) == 1) && (e_config->desklock_login_box_zone == -2))
edd->move_handler = ecore_event_handler_del(edd->move_handler);
l = _e_desklock_popup_find(ev->zone);
if (l)
{
_e_desklock_popup_free(l->data);
edd->elock_wnd_list = eina_list_remove_list(edd->elock_wnd_list, l);
}
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_e_desklock_cb_zone_move_resize(void *data __UNUSED__,
int type __UNUSED__,
void *event)
{
E_Desklock_Popup_Data *edp;
Eina_List *l;
E_Event_Zone_Move_Resize *ev = event;
if (!edd) return ECORE_CALLBACK_PASS_ON;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
if (edp->popup_wnd->zone == ev->zone)
{
e_popup_move_resize(edp->popup_wnd, 0, 0, ev->zone->w, ev->zone->h);
evas_object_resize(edp->bg_object, ev->zone->w, ev->zone->h);
break;
}
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_e_desklock_cb_key_down(void *data __UNUSED__, int type __UNUSED__, void *event)
{
Ecore_Event_Key *ev = event;
if ((ev->window != edd->elock_wnd) ||
(edd->state == E_DESKLOCK_STATE_CHECKING)) return 1;
if (!strcmp(ev->key, "Escape"))
{
if (edd->selected)
{
_e_desklock_unselect();
return ECORE_CALLBACK_RENEW;
}
}
else if (!strcmp(ev->key, "KP_Enter"))
_e_desklock_check_auth();
else if (!strcmp(ev->key, "Return"))
_e_desklock_check_auth();
else if (!strcmp(ev->key, "BackSpace"))
{
if (edd->selected)
{
_e_desklock_null();
_e_desklock_unselect();
return ECORE_CALLBACK_RENEW;
}
_e_desklock_backspace();
}
else if (!strcmp(ev->key, "Delete"))
{
if (edd->selected)
{
_e_desklock_null();
_e_desklock_unselect();
return ECORE_CALLBACK_RENEW;
}
_e_desklock_delete();
}
else if ((!strcmp(ev->key, "u") &&
(ev->modifiers & ECORE_EVENT_MODIFIER_CTRL)))
_e_desklock_null();
else if ((!strcmp(ev->key, "a") &&
(ev->modifiers & ECORE_EVENT_MODIFIER_CTRL)))
_e_desklock_select();
else
{
/* here we have to grab a password */
if (ev->compose)
{
if (edd->selected)
{
_e_desklock_null();
_e_desklock_unselect();
}
if ((strlen(edd->passwd) < (PASSWD_LEN - strlen(ev->compose))))
{
strcat(edd->passwd, ev->compose);
_e_desklock_passwd_update();
}
}
}
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_e_desklock_cb_mouse_move(void *data __UNUSED__, int type __UNUSED__, void *event __UNUSED__)
{
E_Desklock_Popup_Data *edp;
E_Zone *current_zone;
Eina_List *l;
current_zone = e_zone_current_get(e_container_current_get(e_manager_current_get()));
if (current_zone == last_active_zone)
return ECORE_CALLBACK_PASS_ON;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
{
if (!edp) continue;
if (edp->popup_wnd->zone != current_zone)
{
if (edp->login_box) evas_object_hide(edp->login_box);
continue;
}
if (edp->login_box)
evas_object_show(edp->login_box);
else
_e_desklock_login_box_add(edp);
}
_e_desklock_passwd_update();
last_active_zone = current_zone;
return ECORE_CALLBACK_PASS_ON;
}
static void
_e_desklock_passwd_update(void)
{
int len, i;
char passwd_hidden[PASSWD_LEN] = "", *pp;
E_Desklock_Popup_Data *edp;
Eina_List *l;
if (!edd) return;
len = eina_unicode_utf8_get_len(edd->passwd);
for (i = 0, pp = passwd_hidden; i < len; i++, pp++)
*pp = '*';
*pp = 0;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
if (edp->login_box) edje_object_part_text_set(edp->login_box, "e.text.password",
passwd_hidden);
}
static void
_e_desklock_select(void)
{
E_Desklock_Popup_Data *edp;
Eina_List *l;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
if (edp->login_box)
edje_object_signal_emit(edp->login_box, "e,state,selected", "e");
edd->selected = EINA_TRUE;
}
static void
_e_desklock_unselect(void)
{
E_Desklock_Popup_Data *edp;
Eina_List *l;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
if (edp->login_box)
edje_object_signal_emit(edp->login_box, "e,state,unselected", "e");
edd->selected = EINA_FALSE;
}
static void
_e_desklock_null(void)
{
memset(edd->passwd, 0, sizeof(char) * PASSWD_LEN);
_e_desklock_passwd_update();
}
static void
_e_desklock_backspace(void)
{
int len, val, pos;
if (!edd) return;
len = strlen(edd->passwd);
if (len > 0)
{
pos = evas_string_char_prev_get(edd->passwd, len, &val);
if ((pos < len) && (pos >= 0))
{
edd->passwd[pos] = 0;
_e_desklock_passwd_update();
}
}
}
static void
_e_desklock_delete(void)
{
_e_desklock_backspace();
}
static int
_e_desklock_zone_num_get(void)
{
int num;
Eina_List *l, *l2;
E_Manager *man;
num = 0;
EINA_LIST_FOREACH(e_manager_list(), l, man)
{
E_Container *con;
EINA_LIST_FOREACH(man->containers, l2, con)
num += eina_list_count(con->zones);
}
return num;
}
static int
_e_desklock_check_auth(void)
{
if (!edd) return 0;
#ifdef HAVE_PAM
if (e_config->desklock_auth_method == 0)
{
int ret;
ret = _desklock_auth(edd->passwd);
// passwd off in child proc now - null out from parent
memset(edd->passwd, 0, sizeof(char) * PASSWD_LEN);
return ret;
}
else if (e_config->desklock_auth_method == 1)
{
#endif
if ((e_config->desklock_personal_passwd) &&
(!strcmp(!edd->passwd ? "" : edd->passwd,
!e_config->desklock_personal_passwd ? "" :
e_config->desklock_personal_passwd)))
{
/* password ok */
/* security - null out passwd string once we are done with it */
memset(edd->passwd, 0, sizeof(char) * PASSWD_LEN);
e_desklock_hide();
return 1;
}
#ifdef HAVE_PAM
}
#endif
/* password is definitely wrong */
_e_desklock_state_set(E_DESKLOCK_STATE_INVALID);
_e_desklock_null();
return 0;
}
static void
_e_desklock_state_set(int state)
{
Eina_List *l;
E_Desklock_Popup_Data *edp;
const char *signal_desklock, *text;
if (!edd) return;
edd->state = state;
if (state == E_DESKLOCK_STATE_CHECKING)
{
signal_desklock = "e,state,checking";
text = _("Authenticating...");
}
else if (state == E_DESKLOCK_STATE_INVALID)
{
signal_desklock = "e,state,invalid";
text = _("The password you entered is invalid. Try again.");
}
else
return;
EINA_LIST_FOREACH(edd->elock_wnd_list, l, edp)
{
edje_object_signal_emit(edp->login_box, signal_desklock, "e.desklock"); // compat
edje_object_signal_emit(edp->bg_object, signal_desklock, "e.desklock"); // compat
edje_object_signal_emit(edp->login_box, signal_desklock, "e");
edje_object_signal_emit(edp->bg_object, signal_desklock, "e");
edje_object_part_text_set(edp->login_box, "e.text.title", text);
}
}
#ifdef HAVE_PAM
static Eina_Bool
_e_desklock_cb_exit(void *data __UNUSED__, int type __UNUSED__, void *event)
{
Ecore_Exe_Event_Del *ev = event;
if (ev->pid == _e_desklock_child_pid)
{
_e_desklock_child_pid = -1;
/* ok */
if (ev->exit_code == 0)
{
/* security - null out passwd string once we are done with it */
memset(edd->passwd, 0, sizeof(char) * PASSWD_LEN);
e_desklock_hide();
}
/* error */
else if (ev->exit_code < 128)
{
/* security - null out passwd string once we are done with it */
memset(edd->passwd, 0, sizeof(char) * PASSWD_LEN);
e_desklock_hide();
e_util_dialog_show(_("Authentication System Error"),
_("Authentication via PAM had errors setting up the<br>"
"authentication session. The error code was <hilight>%i</hilight>.<br>"
"This is bad and should not be happening. Please report this bug.")
, ev->exit_code);
}
/* failed auth */
else
{
_e_desklock_state_set(E_DESKLOCK_STATE_INVALID);
/* security - null out passwd string once we are done with it */
_e_desklock_null();
}
if (_e_desklock_exit_handler)
ecore_event_handler_del(_e_desklock_exit_handler);
_e_desklock_exit_handler = NULL;
}
return ECORE_CALLBACK_PASS_ON;
}
static int
_desklock_auth(char *passwd)
{
_e_desklock_state_set(E_DESKLOCK_STATE_CHECKING);
_e_desklock_child_pid = fork();
if (_e_desklock_child_pid > 0)
{
/* parent */
_e_desklock_exit_handler =
ecore_event_handler_add(ECORE_EXE_EVENT_DEL, _e_desklock_cb_exit,
NULL);
}
else if (_e_desklock_child_pid == 0)
{
/* child */
int pamerr;
E_Desklock_Auth da;
char *current_user, *p;
struct sigaction action;
action.sa_handler = SIG_DFL;
action.sa_flags = SA_ONSTACK | SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
sigemptyset(&action.sa_mask);
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGILL, &action, NULL);
sigaction(SIGFPE, &action, NULL);
sigaction(SIGBUS, &action, NULL);
sigaction(SIGABRT, &action, NULL);
current_user = _desklock_auth_get_current_user();
eina_strlcpy(da.user, current_user, sizeof(da.user));
eina_strlcpy(da.passwd, passwd, sizeof(da.passwd));
/* security - null out passwd string once we are done with it */
for (p = passwd; *p; p++)
*p = 0;
da.pam.handle = NULL;
da.pam.conv.conv = NULL;
da.pam.conv.appdata_ptr = NULL;
pamerr = _desklock_pam_init(&da);
if (pamerr != PAM_SUCCESS)
{
free(current_user);
exit(1);
}
pamerr = pam_authenticate(da.pam.handle, 0);
pam_end(da.pam.handle, pamerr);
/* security - null out passwd string once we are done with it */
memset(da.passwd, 0, sizeof(da.passwd));
if (pamerr == PAM_SUCCESS)
{
free(current_user);
exit(0);
}
free(current_user);
exit(-1);
}
else
{
_e_desklock_state_set(E_DESKLOCK_STATE_INVALID);
return 0;
}
return 1;
}
static char *
_desklock_auth_get_current_user(void)
{
char *user;
struct passwd *pwent = NULL;
pwent = getpwuid(getuid());
user = strdup(pwent->pw_name);
return user;
}
static int
_desklock_pam_init(E_Desklock_Auth *da)
{
int pamerr;
const char *pam_prof;
char *current_host;
char *current_user;
if (!da) return -1;
da->pam.conv.conv = _desklock_auth_pam_conv;
da->pam.conv.appdata_ptr = da;
da->pam.handle = NULL;
/* try other pam profiles - and system-auth (login for fbsd users) is a fallback */
pam_prof = "login";
if (ecore_file_exists("/etc/pam.d/enlightenment"))
pam_prof = "enlightenment";
else if (ecore_file_exists("/etc/pam.d/xscreensaver"))
pam_prof = "xscreensaver";
else if (ecore_file_exists("/etc/pam.d/kscreensaver"))
pam_prof = "kscreensaver";
else if (ecore_file_exists("/etc/pam.d/system-auth"))
pam_prof = "system-auth";
else if (ecore_file_exists("/etc/pam.d/system"))
pam_prof = "system";
else if (ecore_file_exists("/etc/pam.d/xdm"))
pam_prof = "xdm";
else if (ecore_file_exists("/etc/pam.d/gdm"))
pam_prof = "gdm";
else if (ecore_file_exists("/etc/pam.d/kdm"))
pam_prof = "kdm";
if ((pamerr = pam_start(pam_prof, da->user, &(da->pam.conv),
&(da->pam.handle))) != PAM_SUCCESS)
return pamerr;
current_user = _desklock_auth_get_current_user();
if ((pamerr = pam_set_item(da->pam.handle, PAM_USER, current_user)) != PAM_SUCCESS)
{
free(current_user);
return pamerr;
}
current_host = _desklock_auth_get_current_host();
if ((pamerr = pam_set_item(da->pam.handle, PAM_RHOST, current_host)) != PAM_SUCCESS)
{
free(current_user);
free(current_host);
return pamerr;
}
free(current_user);
free(current_host);
return 0;
}
static int
_desklock_auth_pam_conv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr)
{
int replies = 0;
E_Desklock_Auth *da = (E_Desklock_Auth *)appdata_ptr;
struct pam_response *reply = NULL;
reply = (struct pam_response *)malloc(sizeof(struct pam_response) * num_msg);
if (!reply) return PAM_CONV_ERR;
for (replies = 0; replies < num_msg; replies++)
{
switch (msg[replies]->msg_style)
{
case PAM_PROMPT_ECHO_ON:
reply[replies].resp_retcode = PAM_SUCCESS;
reply[replies].resp = strdup(da->user);
break;
case PAM_PROMPT_ECHO_OFF:
reply[replies].resp_retcode = PAM_SUCCESS;
reply[replies].resp = strdup(da->passwd);
break;
case PAM_ERROR_MSG:
case PAM_TEXT_INFO:
reply[replies].resp_retcode = PAM_SUCCESS;
reply[replies].resp = NULL;
break;
default:
free(reply);
return PAM_CONV_ERR;
}
}
*resp = reply;
return PAM_SUCCESS;
}
static char *
_desklock_auth_get_current_host(void)
{
return strdup("localhost");
}
#endif
static Eina_Bool
_e_desklock_cb_custom_desklock_exit(void *data __UNUSED__, int type __UNUSED__, void *event)
{
Ecore_Exe_Event_Del *ev = event;
if (ev->exe != _e_custom_desklock_exe) return ECORE_CALLBACK_PASS_ON;
if (ev->exit_code != 0)
{
/* do something profound here... like notify someone */
}
e_desklock_hide();
return ECORE_CALLBACK_DONE;
}
static Eina_Bool
_e_desklock_cb_idle_poller(void *data __UNUSED__)
{
if ((e_config->desklock_autolock_idle) && (!e_config->mode.presentation) &&
(!e_util_fullscreen_current_any()))
{
double idle, max;
/* If a desklock is already up, bail */
if ((_e_custom_desklock_exe) || (edd)) return ECORE_CALLBACK_RENEW;
idle = ecore_x_screensaver_idle_time_get();
max = e_config->desklock_autolock_idle_timeout;
if (_e_desklock_ask_presentation_count > 0)
max *= (1 + _e_desklock_ask_presentation_count);
/* If we have exceeded our idle time... */
if (idle >= max)
{
/*
* Unfortunately, not all "desklocks" stay up for as long as
* the user is idle or until it is unlocked.
*
* 'xscreensaver-command -lock' for example sends a command
* to xscreensaver and then terminates. So, we have another
* check (_e_desklock_user_idle) which lets us know that we
* have locked the screen due to idleness.
*/
if (!_e_desklock_user_idle)
{
_e_desklock_user_idle = 1;
e_desklock_show_autolocked();
}
}
else
_e_desklock_user_idle = 0;
}
/* Make sure our poller persists. */
return ECORE_CALLBACK_RENEW;
}
static void
_e_desklock_ask_presentation_del(void *data)
{
if (_e_desklock_ask_presentation_dia == data)
_e_desklock_ask_presentation_dia = NULL;
}
static void
_e_desklock_ask_presentation_yes(void *data __UNUSED__, E_Dialog *dia)
{
e_config->mode.presentation = 1;
e_config_mode_changed();
e_config_save_queue();
e_object_del(E_OBJECT(dia));
_e_desklock_ask_presentation_count = 0;
}
static void
_e_desklock_ask_presentation_no(void *data __UNUSED__, E_Dialog *dia)
{
e_object_del(E_OBJECT(dia));
_e_desklock_ask_presentation_count = 0;
}
static void
_e_desklock_ask_presentation_no_increase(void *data __UNUSED__, E_Dialog *dia)
{
int timeout, interval, blanking, expose;
_e_desklock_ask_presentation_count++;
timeout = e_config->screensaver_timeout * _e_desklock_ask_presentation_count;
interval = e_config->screensaver_interval;
blanking = e_config->screensaver_blanking;
expose = e_config->screensaver_expose;
ecore_x_screensaver_set(timeout, interval, blanking, expose);
e_object_del(E_OBJECT(dia));
}
static void
_e_desklock_ask_presentation_no_forever(void *data __UNUSED__, E_Dialog *dia)
{
e_config->desklock_ask_presentation = 0;
e_config_save_queue();
e_object_del(E_OBJECT(dia));
_e_desklock_ask_presentation_count = 0;
}
static void
_e_desklock_ask_presentation_key_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event)
{
Evas_Event_Key_Down *ev = event;
E_Dialog *dia = data;
if (strcmp(ev->keyname, "Return") == 0)
_e_desklock_ask_presentation_yes(NULL, dia);
else if (strcmp(ev->keyname, "Escape") == 0)
_e_desklock_ask_presentation_no(NULL, dia);
}
static void
_e_desklock_ask_presentation_mode(void)
{
E_Manager *man;
E_Container *con;
E_Dialog *dia;
if (_e_desklock_ask_presentation_dia) return;
if (!(man = e_manager_current_get())) return;
if (!(con = e_container_current_get(man))) return;
if (!(dia = e_dialog_new(con, "E", "_desklock_ask_presentation"))) return;
e_dialog_title_set(dia, _("Activate Presentation Mode?"));
e_dialog_icon_set(dia, "dialog-ask", 64);
e_dialog_text_set(dia,
_("You unlocked your desktop too fast.<br><br>"
"Would you like to enable <b>presentation</b> mode and "
"temporarily disable screen saver, lock and power saving?"));
e_object_del_attach_func_set(E_OBJECT(dia),
_e_desklock_ask_presentation_del);
e_dialog_button_add(dia, _("Yes"), NULL,
_e_desklock_ask_presentation_yes, NULL);
e_dialog_button_add(dia, _("No"), NULL,
_e_desklock_ask_presentation_no, NULL);
e_dialog_button_add(dia, _("No, but increase timeout"), NULL,
_e_desklock_ask_presentation_no_increase, NULL);
e_dialog_button_add(dia, _("No, and stop asking"), NULL,
_e_desklock_ask_presentation_no_forever, NULL);
e_dialog_button_focus_num(dia, 0);
e_widget_list_homogeneous_set(dia->box_object, 0);
e_win_centered_set(dia->win, 1);
e_dialog_show(dia);
evas_object_event_callback_add(dia->bg_object, EVAS_CALLBACK_KEY_DOWN,
_e_desklock_ask_presentation_key_down, dia);
_e_desklock_ask_presentation_dia = dia;
}
static Eina_Bool
_e_desklock_run(E_Desklock_Run *task)
{
Efreet_Desktop *desktop;
desktop = eina_list_nth(task->desk_run->desktops, task->position++);
if (!desktop)
{
e_object_del(E_OBJECT(task->desk_run));
free(task);
return EINA_FALSE;
}
e_exec(NULL, desktop, NULL, NULL, NULL);
return EINA_TRUE;
}
static void
_e_desklock_job(void *data __UNUSED__)
{
E_Desklock_Run *task;
job = NULL;
if (!tasks) return ;
task = eina_list_data_get(tasks);
if (!_e_desklock_run(task))
tasks = eina_list_remove_list(tasks, tasks);
if (tasks) job = ecore_job_add(_e_desklock_job, NULL);
}
static Eina_Bool
_e_desklock_cb_run(void *data __UNUSED__, int type __UNUSED__, void *event)
{
E_Desklock_Run *task;
E_Event_Desklock *ev = event;
E_Order *desk_run;
char buf[PATH_MAX];
if (!ev->suspend) return ECORE_CALLBACK_PASS_ON;
if (ev->on)
{
e_user_dir_concat_static(buf, "applications/desk-lock/.order");
if (!ecore_file_exists(buf))
e_prefix_data_concat_static(buf, "applications/desk-lock/.order");
}
else
{
e_user_dir_concat_static(buf, "applications/desk-unlock/.order");
if (!ecore_file_exists(buf))
e_prefix_data_concat_static(buf, "applications/desk-unlock/.order");
}
desk_run = e_order_new(buf);
if (!desk_run) return ECORE_CALLBACK_PASS_ON;
task = calloc(1, sizeof (E_Desklock_Run));
if (!task)
{
e_object_del(E_OBJECT(desk_run));
return ECORE_CALLBACK_PASS_ON;
}
task->desk_run = desk_run;
tasks = eina_list_append(tasks, task);
if (!job) ecore_job_add(_e_desklock_job, NULL);
return ECORE_CALLBACK_PASS_ON;
}
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