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[thirdparty/systemd.git] / src / locale / localed.c
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3 /***
4 This file is part of systemd.
5
6 Copyright 2011 Lennart Poettering
7 Copyright 2013 Kay Sievers
8
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
13
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21 ***/
22
23 #include <errno.h>
24 #include <string.h>
25 #include <unistd.h>
26
27 #include "sd-bus.h"
28
29 #include "util.h"
30 #include "mkdir.h"
31 #include "strv.h"
32 #include "def.h"
33 #include "env-util.h"
34 #include "fileio.h"
35 #include "fileio-label.h"
36 #include "label.h"
37 #include "bus-util.h"
38 #include "bus-error.h"
39 #include "bus-message.h"
40 #include "event-util.h"
41
42 enum {
43 /* We don't list LC_ALL here on purpose. People should be
44 * using LANG instead. */
45 LOCALE_LANG,
46 LOCALE_LANGUAGE,
47 LOCALE_LC_CTYPE,
48 LOCALE_LC_NUMERIC,
49 LOCALE_LC_TIME,
50 LOCALE_LC_COLLATE,
51 LOCALE_LC_MONETARY,
52 LOCALE_LC_MESSAGES,
53 LOCALE_LC_PAPER,
54 LOCALE_LC_NAME,
55 LOCALE_LC_ADDRESS,
56 LOCALE_LC_TELEPHONE,
57 LOCALE_LC_MEASUREMENT,
58 LOCALE_LC_IDENTIFICATION,
59 _LOCALE_MAX
60 };
61
62 static const char * const names[_LOCALE_MAX] = {
63 [LOCALE_LANG] = "LANG",
64 [LOCALE_LANGUAGE] = "LANGUAGE",
65 [LOCALE_LC_CTYPE] = "LC_CTYPE",
66 [LOCALE_LC_NUMERIC] = "LC_NUMERIC",
67 [LOCALE_LC_TIME] = "LC_TIME",
68 [LOCALE_LC_COLLATE] = "LC_COLLATE",
69 [LOCALE_LC_MONETARY] = "LC_MONETARY",
70 [LOCALE_LC_MESSAGES] = "LC_MESSAGES",
71 [LOCALE_LC_PAPER] = "LC_PAPER",
72 [LOCALE_LC_NAME] = "LC_NAME",
73 [LOCALE_LC_ADDRESS] = "LC_ADDRESS",
74 [LOCALE_LC_TELEPHONE] = "LC_TELEPHONE",
75 [LOCALE_LC_MEASUREMENT] = "LC_MEASUREMENT",
76 [LOCALE_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
77 };
78
79 typedef struct Context {
80 char *locale[_LOCALE_MAX];
81
82 char *x11_layout;
83 char *x11_model;
84 char *x11_variant;
85 char *x11_options;
86
87 char *vc_keymap;
88 char *vc_keymap_toggle;
89
90 Hashmap *polkit_registry;
91 } Context;
92
93 static int free_and_copy(char **s, const char *v) {
94 int r;
95 char *t;
96
97 assert(s);
98
99 r = strdup_or_null(isempty(v) ? NULL : v, &t);
100 if (r < 0)
101 return r;
102
103 free(*s);
104 *s = t;
105
106 return 0;
107 }
108
109 static void free_and_replace(char **s, char *v) {
110 free(*s);
111 *s = v;
112 }
113
114 static void context_free_x11(Context *c) {
115 free_and_replace(&c->x11_layout, NULL);
116 free_and_replace(&c->x11_model, NULL);
117 free_and_replace(&c->x11_variant, NULL);
118 free_and_replace(&c->x11_options, NULL);
119 }
120
121 static void context_free_vconsole(Context *c) {
122 free_and_replace(&c->vc_keymap, NULL);
123 free_and_replace(&c->vc_keymap_toggle, NULL);
124 }
125
126 static void context_free_locale(Context *c) {
127 int p;
128
129 for (p = 0; p < _LOCALE_MAX; p++)
130 free_and_replace(&c->locale[p], NULL);
131 }
132
133 static void context_free(Context *c, sd_bus *bus) {
134 context_free_locale(c);
135 context_free_x11(c);
136 context_free_vconsole(c);
137
138 bus_verify_polkit_async_registry_free(bus, c->polkit_registry);
139 };
140
141 static void locale_simplify(Context *c) {
142 int p;
143
144 for (p = LOCALE_LANG+1; p < _LOCALE_MAX; p++)
145 if (isempty(c->locale[p]) || streq_ptr(c->locale[LOCALE_LANG], c->locale[p])) {
146 free(c->locale[p]);
147 c->locale[p] = NULL;
148 }
149 }
150
151 static int locale_read_data(Context *c) {
152 int r;
153
154 context_free_locale(c);
155
156 r = parse_env_file("/etc/locale.conf", NEWLINE,
157 "LANG", &c->locale[LOCALE_LANG],
158 "LANGUAGE", &c->locale[LOCALE_LANGUAGE],
159 "LC_CTYPE", &c->locale[LOCALE_LC_CTYPE],
160 "LC_NUMERIC", &c->locale[LOCALE_LC_NUMERIC],
161 "LC_TIME", &c->locale[LOCALE_LC_TIME],
162 "LC_COLLATE", &c->locale[LOCALE_LC_COLLATE],
163 "LC_MONETARY", &c->locale[LOCALE_LC_MONETARY],
164 "LC_MESSAGES", &c->locale[LOCALE_LC_MESSAGES],
165 "LC_PAPER", &c->locale[LOCALE_LC_PAPER],
166 "LC_NAME", &c->locale[LOCALE_LC_NAME],
167 "LC_ADDRESS", &c->locale[LOCALE_LC_ADDRESS],
168 "LC_TELEPHONE", &c->locale[LOCALE_LC_TELEPHONE],
169 "LC_MEASUREMENT", &c->locale[LOCALE_LC_MEASUREMENT],
170 "LC_IDENTIFICATION", &c->locale[LOCALE_LC_IDENTIFICATION],
171 NULL);
172
173 if (r == -ENOENT) {
174 int p;
175
176 /* Fill in what we got passed from systemd. */
177 for (p = 0; p < _LOCALE_MAX; p++) {
178 assert(names[p]);
179
180 r = free_and_copy(&c->locale[p], getenv(names[p]));
181 if (r < 0)
182 return r;
183 }
184
185 r = 0;
186 }
187
188 locale_simplify(c);
189 return r;
190 }
191
192 static int vconsole_read_data(Context *c) {
193 int r;
194
195 context_free_vconsole(c);
196
197 r = parse_env_file("/etc/vconsole.conf", NEWLINE,
198 "KEYMAP", &c->vc_keymap,
199 "KEYMAP_TOGGLE", &c->vc_keymap_toggle,
200 NULL);
201
202 if (r < 0 && r != -ENOENT)
203 return r;
204
205 return 0;
206 }
207
208 static int x11_read_data(Context *c) {
209 FILE *f;
210 char line[LINE_MAX];
211 bool in_section = false;
212
213 context_free_x11(c);
214
215 f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
216 if (!f)
217 return errno == ENOENT ? 0 : -errno;
218
219 while (fgets(line, sizeof(line), f)) {
220 char *l;
221
222 char_array_0(line);
223 l = strstrip(line);
224
225 if (l[0] == 0 || l[0] == '#')
226 continue;
227
228 if (in_section && first_word(l, "Option")) {
229 char **a;
230
231 a = strv_split_quoted(l);
232 if (!a) {
233 fclose(f);
234 return -ENOMEM;
235 }
236
237 if (strv_length(a) == 3) {
238 if (streq(a[1], "XkbLayout")) {
239 free_and_replace(&c->x11_layout, a[2]);
240 a[2] = NULL;
241 } else if (streq(a[1], "XkbModel")) {
242 free_and_replace(&c->x11_model, a[2]);
243 a[2] = NULL;
244 } else if (streq(a[1], "XkbVariant")) {
245 free_and_replace(&c->x11_variant, a[2]);
246 a[2] = NULL;
247 } else if (streq(a[1], "XkbOptions")) {
248 free_and_replace(&c->x11_options, a[2]);
249 a[2] = NULL;
250 }
251 }
252
253 strv_free(a);
254
255 } else if (!in_section && first_word(l, "Section")) {
256 char **a;
257
258 a = strv_split_quoted(l);
259 if (!a) {
260 fclose(f);
261 return -ENOMEM;
262 }
263
264 if (strv_length(a) == 2 && streq(a[1], "InputClass"))
265 in_section = true;
266
267 strv_free(a);
268 } else if (in_section && first_word(l, "EndSection"))
269 in_section = false;
270 }
271
272 fclose(f);
273
274 return 0;
275 }
276
277 static int context_read_data(Context *c) {
278 int r, q, p;
279
280 r = locale_read_data(c);
281 q = vconsole_read_data(c);
282 p = x11_read_data(c);
283
284 return r < 0 ? r : q < 0 ? q : p;
285 }
286
287 static int locale_write_data(Context *c) {
288 int r, p;
289 char **l = NULL;
290
291 r = load_env_file(NULL, "/etc/locale.conf", NULL, &l);
292 if (r < 0 && r != -ENOENT)
293 return r;
294
295 for (p = 0; p < _LOCALE_MAX; p++) {
296 char *t, **u;
297
298 assert(names[p]);
299
300 if (isempty(c->locale[p])) {
301 l = strv_env_unset(l, names[p]);
302 continue;
303 }
304
305 if (asprintf(&t, "%s=%s", names[p], c->locale[p]) < 0) {
306 strv_free(l);
307 return -ENOMEM;
308 }
309
310 u = strv_env_set(l, t);
311 free(t);
312 strv_free(l);
313
314 if (!u)
315 return -ENOMEM;
316
317 l = u;
318 }
319
320 if (strv_isempty(l)) {
321 strv_free(l);
322
323 if (unlink("/etc/locale.conf") < 0)
324 return errno == ENOENT ? 0 : -errno;
325
326 return 0;
327 }
328
329 r = write_env_file_label("/etc/locale.conf", l);
330 strv_free(l);
331
332 return r;
333 }
334
335 static int locale_update_system_manager(Context *c, sd_bus *bus) {
336 _cleanup_free_ char **l_unset = NULL;
337 _cleanup_strv_free_ char **l_set = NULL;
338 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
339 sd_bus_error error = SD_BUS_ERROR_NULL;
340 unsigned c_set, c_unset, p;
341 int r;
342
343 assert(bus);
344
345 l_unset = new0(char*, _LOCALE_MAX);
346 if (!l_unset)
347 return -ENOMEM;
348
349 l_set = new0(char*, _LOCALE_MAX);
350 if (!l_set)
351 return -ENOMEM;
352
353 for (p = 0, c_set = 0, c_unset = 0; p < _LOCALE_MAX; p++) {
354 assert(names[p]);
355
356 if (isempty(c->locale[p]))
357 l_unset[c_set++] = (char*) names[p];
358 else {
359 char *s;
360
361 if (asprintf(&s, "%s=%s", names[p], c->locale[p]) < 0)
362 return -ENOMEM;
363
364 l_set[c_unset++] = s;
365 }
366 }
367
368 assert(c_set + c_unset == _LOCALE_MAX);
369 r = sd_bus_message_new_method_call(bus, &m,
370 "org.freedesktop.systemd1",
371 "/org/freedesktop/systemd1",
372 "org.freedesktop.systemd1.Manager",
373 "UnsetAndSetEnvironment");
374 if (r < 0)
375 return r;
376
377 r = sd_bus_message_append_strv(m, l_unset);
378 if (r < 0)
379 return r;
380
381 r = sd_bus_message_append_strv(m, l_set);
382 if (r < 0)
383 return r;
384
385 r = sd_bus_call(bus, m, 0, &error, NULL);
386 if (r < 0)
387 log_error("Failed to update the manager environment: %s", strerror(-r));
388
389 return 0;
390 }
391
392 static int vconsole_write_data(Context *c) {
393 int r;
394 _cleanup_strv_free_ char **l = NULL;
395
396 r = load_env_file(NULL, "/etc/vconsole.conf", NULL, &l);
397 if (r < 0 && r != -ENOENT)
398 return r;
399
400 if (isempty(c->vc_keymap))
401 l = strv_env_unset(l, "KEYMAP");
402 else {
403 char *s, **u;
404
405 s = strappend("KEYMAP=", c->vc_keymap);
406 if (!s)
407 return -ENOMEM;
408
409 u = strv_env_set(l, s);
410 free(s);
411 strv_free(l);
412
413 if (!u)
414 return -ENOMEM;
415
416 l = u;
417 }
418
419 if (isempty(c->vc_keymap_toggle))
420 l = strv_env_unset(l, "KEYMAP_TOGGLE");
421 else {
422 char *s, **u;
423
424 s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle);
425 if (!s)
426 return -ENOMEM;
427
428 u = strv_env_set(l, s);
429 free(s);
430 strv_free(l);
431
432 if (!u)
433 return -ENOMEM;
434
435 l = u;
436 }
437
438 if (strv_isempty(l)) {
439 if (unlink("/etc/vconsole.conf") < 0)
440 return errno == ENOENT ? 0 : -errno;
441
442 return 0;
443 }
444
445 r = write_env_file_label("/etc/vconsole.conf", l);
446 return r;
447 }
448
449 static int write_data_x11(Context *c) {
450 _cleanup_fclose_ FILE *f = NULL;
451 _cleanup_free_ char *temp_path = NULL;
452 int r;
453
454 if (isempty(c->x11_layout) &&
455 isempty(c->x11_model) &&
456 isempty(c->x11_variant) &&
457 isempty(c->x11_options)) {
458
459 if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
460 return errno == ENOENT ? 0 : -errno;
461
462 return 0;
463 }
464
465 mkdir_p_label("/etc/X11/xorg.conf.d", 0755);
466
467 r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path);
468 if (r < 0)
469 return r;
470
471 fchmod(fileno(f), 0644);
472
473 fputs("# Read and parsed by systemd-localed. It's probably wise not to edit this file\n"
474 "# manually too freely.\n"
475 "Section \"InputClass\"\n"
476 " Identifier \"system-keyboard\"\n"
477 " MatchIsKeyboard \"on\"\n", f);
478
479 if (!isempty(c->x11_layout))
480 fprintf(f, " Option \"XkbLayout\" \"%s\"\n", c->x11_layout);
481
482 if (!isempty(c->x11_model))
483 fprintf(f, " Option \"XkbModel\" \"%s\"\n", c->x11_model);
484
485 if (!isempty(c->x11_variant))
486 fprintf(f, " Option \"XkbVariant\" \"%s\"\n", c->x11_variant);
487
488 if (!isempty(c->x11_options))
489 fprintf(f, " Option \"XkbOptions\" \"%s\"\n", c->x11_options);
490
491 fputs("EndSection\n", f);
492 fflush(f);
493
494 if (ferror(f) || rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
495 r = -errno;
496 unlink("/etc/X11/xorg.conf.d/00-keyboard.conf");
497 unlink(temp_path);
498 return r;
499 } else
500 return 0;
501 }
502
503 static int vconsole_reload(sd_bus *bus) {
504 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
505 int r;
506
507 assert(bus);
508
509 r = sd_bus_call_method(bus,
510 "org.freedesktop.systemd1",
511 "/org/freedesktop/systemd1",
512 "org.freedesktop.systemd1.Manager",
513 "RestartUnit",
514 &error,
515 NULL,
516 "ss", "systemd-vconsole-setup.service", "replace");
517
518 if (r < 0)
519 log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
520 return r;
521 }
522
523 static char *strnulldash(const char *s) {
524 return s == NULL || *s == 0 || (s[0] == '-' && s[1] == 0) ? NULL : (char*) s;
525 }
526
527 static int read_next_mapping(FILE *f, unsigned *n, char ***a) {
528 assert(f);
529 assert(n);
530 assert(a);
531
532 for (;;) {
533 char line[LINE_MAX];
534 char *l, **b;
535
536 errno = 0;
537 if (!fgets(line, sizeof(line), f)) {
538
539 if (ferror(f))
540 return errno ? -errno : -EIO;
541
542 return 0;
543 }
544
545 (*n) ++;
546
547 l = strstrip(line);
548 if (l[0] == 0 || l[0] == '#')
549 continue;
550
551 b = strv_split_quoted(l);
552 if (!b)
553 return -ENOMEM;
554
555 if (strv_length(b) < 5) {
556 log_error("Invalid line "SYSTEMD_KBD_MODEL_MAP":%u, ignoring.", *n);
557 strv_free(b);
558 continue;
559
560 }
561
562 *a = b;
563 return 1;
564 }
565 }
566
567 static int vconsole_convert_to_x11(Context *c, sd_bus *bus) {
568 bool modified = false;
569
570 assert(bus);
571
572 if (isempty(c->vc_keymap)) {
573
574 modified =
575 !isempty(c->x11_layout) ||
576 !isempty(c->x11_model) ||
577 !isempty(c->x11_variant) ||
578 !isempty(c->x11_options);
579
580 context_free_x11(c);
581 } else {
582 _cleanup_fclose_ FILE *f = NULL;
583 unsigned n = 0;
584
585 f = fopen(SYSTEMD_KBD_MODEL_MAP, "re");
586 if (!f)
587 return -errno;
588
589 for (;;) {
590 _cleanup_strv_free_ char **a = NULL;
591 int r;
592
593 r = read_next_mapping(f, &n, &a);
594 if (r < 0)
595 return r;
596 if (r == 0)
597 break;
598
599 if (!streq(c->vc_keymap, a[0]))
600 continue;
601
602 if (!streq_ptr(c->x11_layout, strnulldash(a[1])) ||
603 !streq_ptr(c->x11_model, strnulldash(a[2])) ||
604 !streq_ptr(c->x11_variant, strnulldash(a[3])) ||
605 !streq_ptr(c->x11_options, strnulldash(a[4]))) {
606
607 if (free_and_copy(&c->x11_layout, strnulldash(a[1])) < 0 ||
608 free_and_copy(&c->x11_model, strnulldash(a[2])) < 0 ||
609 free_and_copy(&c->x11_variant, strnulldash(a[3])) < 0 ||
610 free_and_copy(&c->x11_options, strnulldash(a[4])) < 0)
611 return -ENOMEM;
612
613 modified = true;
614 }
615
616 break;
617 }
618 }
619
620 if (modified) {
621 int r;
622
623 r = write_data_x11(c);
624 if (r < 0)
625 log_error("Failed to set X11 keyboard layout: %s", strerror(-r));
626
627 sd_bus_emit_properties_changed(bus,
628 "/org/freedesktop/locale1",
629 "org.freedesktop.locale1",
630 "X11Layout", "X11Model", "X11Variant", "X11Options", NULL);
631 }
632
633 return 0;
634 }
635
636 static int find_converted_keymap(Context *c, char **new_keymap) {
637 const char *dir;
638 _cleanup_free_ char *n;
639
640 if (c->x11_variant)
641 n = strjoin(c->x11_layout, "-", c->x11_variant, NULL);
642 else
643 n = strdup(c->x11_layout);
644 if (!n)
645 return -ENOMEM;
646
647 NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
648 _cleanup_free_ char *p = NULL, *pz = NULL;
649
650 p = strjoin(dir, "xkb/", n, ".map", NULL);
651 pz = strjoin(dir, "xkb/", n, ".map.gz", NULL);
652 if (!p || !pz)
653 return -ENOMEM;
654
655 if (access(p, F_OK) == 0 || access(pz, F_OK) == 0) {
656 *new_keymap = n;
657 n = NULL;
658 return 1;
659 }
660 }
661
662 return 0;
663 }
664
665 static int find_legacy_keymap(Context *c, char **new_keymap) {
666 _cleanup_fclose_ FILE *f;
667 unsigned n = 0;
668 unsigned best_matching = 0;
669
670
671 f = fopen(SYSTEMD_KBD_MODEL_MAP, "re");
672 if (!f)
673 return -errno;
674
675 for (;;) {
676 _cleanup_strv_free_ char **a = NULL;
677 unsigned matching = 0;
678 int r;
679
680 r = read_next_mapping(f, &n, &a);
681 if (r < 0)
682 return r;
683 if (r == 0)
684 break;
685
686 /* Determine how well matching this entry is */
687 if (streq_ptr(c->x11_layout, a[1]))
688 /* If we got an exact match, this is best */
689 matching = 10;
690 else {
691 size_t x;
692
693 x = strcspn(c->x11_layout, ",");
694
695 /* We have multiple X layouts, look for an
696 * entry that matches our key with everything
697 * but the first layout stripped off. */
698 if (x > 0 &&
699 strlen(a[1]) == x &&
700 strneq(c->x11_layout, a[1], x))
701 matching = 5;
702 else {
703 size_t w;
704
705 /* If that didn't work, strip off the
706 * other layouts from the entry, too */
707 w = strcspn(a[1], ",");
708
709 if (x > 0 && x == w &&
710 memcmp(c->x11_layout, a[1], x) == 0)
711 matching = 1;
712 }
713 }
714
715 if (matching > 0) {
716 if (isempty(c->x11_model) || streq_ptr(c->x11_model, a[2])) {
717 matching++;
718
719 if (streq_ptr(c->x11_variant, a[3])) {
720 matching++;
721
722 if (streq_ptr(c->x11_options, a[4]))
723 matching++;
724 }
725 }
726 }
727
728 /* The best matching entry so far, then let's save that */
729 if (matching > best_matching) {
730 best_matching = matching;
731
732 free(*new_keymap);
733 *new_keymap = strdup(a[0]);
734 if (!*new_keymap)
735 return -ENOMEM;
736 }
737 }
738
739 return 0;
740 }
741
742 static int x11_convert_to_vconsole(Context *c, sd_bus *bus) {
743 bool modified = false;
744 int r;
745
746 assert(bus);
747
748 if (isempty(c->x11_layout)) {
749
750 modified =
751 !isempty(c->vc_keymap) ||
752 !isempty(c->vc_keymap_toggle);
753
754 context_free_x11(c);
755 } else {
756 char *new_keymap = NULL;
757
758 r = find_converted_keymap(c, &new_keymap);
759 if (r < 0)
760 return r;
761 else if (r == 0) {
762 r = find_legacy_keymap(c, &new_keymap);
763 if (r < 0)
764 return r;
765 }
766
767 if (!streq_ptr(c->vc_keymap, new_keymap)) {
768 free_and_replace(&c->vc_keymap, new_keymap);
769 free_and_replace(&c->vc_keymap_toggle, NULL);
770 modified = true;
771 } else
772 free(new_keymap);
773 }
774
775 if (modified) {
776 r = vconsole_write_data(c);
777 if (r < 0)
778 log_error("Failed to set virtual console keymap: %s", strerror(-r));
779
780 sd_bus_emit_properties_changed(bus,
781 "/org/freedesktop/locale1",
782 "org.freedesktop.locale1",
783 "VConsoleKeymap", "VConsoleKeymapToggle", NULL);
784
785 return vconsole_reload(bus);
786 }
787
788 return 0;
789 }
790
791 static int property_get_locale(
792 sd_bus *bus,
793 const char *path,
794 const char *interface,
795 const char *property,
796 sd_bus_message *reply,
797 void *userdata,
798 sd_bus_error *error) {
799
800 Context *c = userdata;
801 _cleanup_strv_free_ char **l = NULL;
802 int p, q;
803
804 l = new0(char*, _LOCALE_MAX+1);
805 if (!l)
806 return -ENOMEM;
807
808 for (p = 0, q = 0; p < _LOCALE_MAX; p++) {
809 char *t;
810
811 if (isempty(c->locale[p]))
812 continue;
813
814 if (asprintf(&t, "%s=%s", names[p], c->locale[p]) < 0)
815 return -ENOMEM;
816
817 l[q++] = t;
818 }
819
820 return sd_bus_message_append_strv(reply, l);
821 }
822
823 static int method_set_locale(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
824 Context *c = userdata;
825 _cleanup_strv_free_ char **l = NULL;
826 char **i;
827 int interactive;
828 bool modified = false;
829 bool passed[_LOCALE_MAX] = {};
830 int p;
831 int r;
832
833 r = bus_message_read_strv_extend(m, &l);
834 if (r < 0)
835 return r;
836
837 r = sd_bus_message_read_basic(m, 'b', &interactive);
838 if (r < 0)
839 return r;
840
841 /* Check whether a variable changed and if so valid */
842 STRV_FOREACH(i, l) {
843 bool valid = false;
844
845 for (p = 0; p < _LOCALE_MAX; p++) {
846 size_t k;
847
848 k = strlen(names[p]);
849 if (startswith(*i, names[p]) &&
850 (*i)[k] == '=' &&
851 string_is_safe((*i) + k + 1)) {
852 valid = true;
853 passed[p] = true;
854
855 if (!streq_ptr(*i + k + 1, c->locale[p]))
856 modified = true;
857
858 break;
859 }
860 }
861
862 if (!valid)
863 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Locale data.");
864 }
865
866 /* Check whether a variable is unset */
867 if (!modified) {
868 for (p = 0; p < _LOCALE_MAX; p++)
869 if (!isempty(c->locale[p]) && !passed[p]) {
870 modified = true;
871 break;
872 }
873 }
874
875 if (modified) {
876 r = bus_verify_polkit_async(bus, &c->polkit_registry, m,
877 "org.freedesktop.locale1.set-locale", interactive,
878 error, method_set_locale, c);
879 if (r < 0)
880 return r;
881 if (r == 0)
882 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
883
884 STRV_FOREACH(i, l) {
885 for (p = 0; p < _LOCALE_MAX; p++) {
886 size_t k;
887
888 k = strlen(names[p]);
889 if (startswith(*i, names[p]) && (*i)[k] == '=') {
890 char *t;
891
892 t = strdup(*i + k + 1);
893 if (!t)
894 return -ENOMEM;
895
896 free(c->locale[p]);
897 c->locale[p] = t;
898 break;
899 }
900 }
901 }
902
903 for (p = 0; p < _LOCALE_MAX; p++) {
904 if (passed[p])
905 continue;
906
907 free_and_replace(&c->locale[p], NULL);
908 }
909
910 locale_simplify(c);
911
912 r = locale_write_data(c);
913 if (r < 0) {
914 log_error("Failed to set locale: %s", strerror(-r));
915 return sd_bus_error_set_errnof(error, r, "Failed to set locale: %s", strerror(-r));
916 }
917
918 locale_update_system_manager(c, bus);
919
920 log_info("Changed locale information.");
921
922 sd_bus_emit_properties_changed(bus,
923 "/org/freedesktop/locale1",
924 "org.freedesktop.locale1",
925 "Locale", NULL);
926 }
927
928 return sd_bus_reply_method_return(m, NULL);
929 }
930
931 static int method_set_vc_keyboard(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
932 Context *c = userdata;
933 const char *keymap, *keymap_toggle;
934 int convert, interactive;
935 int r;
936
937 r = sd_bus_message_read(m, "ssbb", &keymap, &keymap_toggle, &convert, &interactive);
938 if (r < 0)
939 return r;
940
941 if (isempty(keymap))
942 keymap = NULL;
943
944 if (isempty(keymap_toggle))
945 keymap_toggle = NULL;
946
947 if (!streq_ptr(keymap, c->vc_keymap) ||
948 !streq_ptr(keymap_toggle, c->vc_keymap_toggle)) {
949
950 if ((keymap && (!filename_is_safe(keymap) || !string_is_safe(keymap))) ||
951 (keymap_toggle && (!filename_is_safe(keymap_toggle) || !string_is_safe(keymap_toggle))))
952 return sd_bus_error_set_errnof(error, -EINVAL, "Received invalid keymap data");
953
954 r = bus_verify_polkit_async(bus, &c->polkit_registry, m,
955 "org.freedesktop.locale1.set-keyboard",
956 interactive, error, method_set_vc_keyboard, c);
957 if (r < 0)
958 return r;
959 if (r == 0)
960 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
961
962 if (free_and_copy(&c->vc_keymap, keymap) < 0 ||
963 free_and_copy(&c->vc_keymap_toggle, keymap_toggle) < 0)
964 return -ENOMEM;
965
966 r = vconsole_write_data(c);
967 if (r < 0) {
968 log_error("Failed to set virtual console keymap: %s", strerror(-r));
969 return sd_bus_error_set_errnof(error, r, "Failed to set virtual console keymap: %s", strerror(-r));
970 }
971
972 log_info("Changed virtual console keymap to '%s'", strempty(c->vc_keymap));
973
974 r = vconsole_reload(bus);
975 if (r < 0)
976 log_error("Failed to request keymap reload: %s", strerror(-r));
977
978 sd_bus_emit_properties_changed(bus,
979 "/org/freedesktop/locale1",
980 "org.freedesktop.locale1",
981 "VConsoleKeymap", "VConsoleKeymapToggle", NULL);
982
983 if (convert) {
984 r = vconsole_convert_to_x11(c, bus);
985 if (r < 0)
986 log_error("Failed to convert keymap data: %s", strerror(-r));
987 }
988 }
989
990 return sd_bus_reply_method_return(m, NULL);
991 }
992
993 static int method_set_x11_keyboard(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
994 Context *c = userdata;
995 const char *layout, *model, *variant, *options;
996 int convert, interactive;
997 int r;
998
999 r = sd_bus_message_read(m, "ssssbb", &layout, &model, &variant, &options, &convert, &interactive);
1000 if (r < 0)
1001 return r;
1002
1003 if (isempty(layout))
1004 layout = NULL;
1005
1006 if (isempty(model))
1007 model = NULL;
1008
1009 if (isempty(variant))
1010 variant = NULL;
1011
1012 if (isempty(options))
1013 options = NULL;
1014
1015 if (!streq_ptr(layout, c->x11_layout) ||
1016 !streq_ptr(model, c->x11_model) ||
1017 !streq_ptr(variant, c->x11_variant) ||
1018 !streq_ptr(options, c->x11_options)) {
1019
1020 if ((layout && !string_is_safe(layout)) ||
1021 (model && !string_is_safe(model)) ||
1022 (variant && !string_is_safe(variant)) ||
1023 (options && !string_is_safe(options)))
1024 return sd_bus_error_set_errnof(error, -EINVAL, "Received invalid keyboard data");
1025
1026 r = bus_verify_polkit_async(bus, &c->polkit_registry, m,
1027 "org.freedesktop.locale1.set-keyboard",
1028 interactive, error, method_set_x11_keyboard, c);
1029 if (r < 0)
1030 return r;
1031 if (r == 0)
1032 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1033
1034 if (free_and_copy(&c->x11_layout, layout) < 0 ||
1035 free_and_copy(&c->x11_model, model) < 0 ||
1036 free_and_copy(&c->x11_variant, variant) < 0 ||
1037 free_and_copy(&c->x11_options, options) < 0)
1038 return -ENOMEM;
1039
1040 r = write_data_x11(c);
1041 if (r < 0) {
1042 log_error("Failed to set X11 keyboard layout: %s", strerror(-r));
1043 return sd_bus_error_set_errnof(error, r, "Failed to set X11 keyboard layout: %s", strerror(-r));
1044 }
1045
1046 log_info("Changed X11 keyboard layout to '%s'", strempty(c->x11_layout));
1047
1048 sd_bus_emit_properties_changed(bus,
1049 "/org/freedesktop/locale1",
1050 "org.freedesktop.locale1",
1051 "X11Layout" "X11Model" "X11Variant" "X11Options", NULL);
1052
1053 if (convert) {
1054 r = x11_convert_to_vconsole(c, bus);
1055 if (r < 0)
1056 log_error("Failed to convert keymap data: %s", strerror(-r));
1057 }
1058 }
1059
1060 return sd_bus_reply_method_return(m, NULL);
1061 }
1062
1063 static const sd_bus_vtable locale_vtable[] = {
1064 SD_BUS_VTABLE_START(0),
1065 SD_BUS_PROPERTY("Locale", "as", property_get_locale, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1066 SD_BUS_PROPERTY("X11Layout", "s", NULL, offsetof(Context, x11_layout), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1067 SD_BUS_PROPERTY("X11Model", "s", NULL, offsetof(Context, x11_model), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1068 SD_BUS_PROPERTY("X11Variant", "s", NULL, offsetof(Context, x11_variant), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1069 SD_BUS_PROPERTY("X11Options", "s", NULL, offsetof(Context, x11_options), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1070 SD_BUS_PROPERTY("VConsoleKeymap", "s", NULL, offsetof(Context, vc_keymap), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1071 SD_BUS_PROPERTY("VConsoleKeymapToggle", "s", NULL, offsetof(Context, vc_keymap_toggle), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1072 SD_BUS_METHOD("SetLocale", "asb", NULL, method_set_locale, SD_BUS_VTABLE_UNPRIVILEGED),
1073 SD_BUS_METHOD("SetVConsoleKeyboard", "ssbb", NULL, method_set_vc_keyboard, SD_BUS_VTABLE_UNPRIVILEGED),
1074 SD_BUS_METHOD("SetX11Keyboard", "ssssbb", NULL, method_set_x11_keyboard, SD_BUS_VTABLE_UNPRIVILEGED),
1075 SD_BUS_VTABLE_END
1076 };
1077
1078 static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) {
1079 _cleanup_bus_unref_ sd_bus *bus = NULL;
1080 int r;
1081
1082 assert(c);
1083 assert(event);
1084 assert(_bus);
1085
1086 r = sd_bus_default_system(&bus);
1087 if (r < 0) {
1088 log_error("Failed to get system bus connection: %s", strerror(-r));
1089 return r;
1090 }
1091
1092 r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/locale1", "org.freedesktop.locale1", locale_vtable, c);
1093 if (r < 0) {
1094 log_error("Failed to register object: %s", strerror(-r));
1095 return r;
1096 }
1097
1098 r = sd_bus_request_name(bus, "org.freedesktop.locale1", 0);
1099 if (r < 0) {
1100 log_error("Failed to register name: %s", strerror(-r));
1101 return r;
1102 }
1103
1104 r = sd_bus_attach_event(bus, event, 0);
1105 if (r < 0) {
1106 log_error("Failed to attach bus to event loop: %s", strerror(-r));
1107 return r;
1108 }
1109
1110 *_bus = bus;
1111 bus = NULL;
1112
1113 return 0;
1114 }
1115
1116 int main(int argc, char *argv[]) {
1117 Context context = {};
1118 _cleanup_event_unref_ sd_event *event = NULL;
1119 _cleanup_bus_unref_ sd_bus *bus = NULL;
1120 int r;
1121
1122 log_set_target(LOG_TARGET_AUTO);
1123 log_parse_environment();
1124 log_open();
1125
1126 umask(0022);
1127 label_init("/etc");
1128
1129 if (argc != 1) {
1130 log_error("This program takes no arguments.");
1131 r = -EINVAL;
1132 goto finish;
1133 }
1134
1135 r = sd_event_default(&event);
1136 if (r < 0) {
1137 log_error("Failed to allocate event loop: %s", strerror(-r));
1138 goto finish;
1139 }
1140
1141 sd_event_set_watchdog(event, true);
1142
1143 r = connect_bus(&context, event, &bus);
1144 if (r < 0)
1145 goto finish;
1146
1147 r = context_read_data(&context);
1148 if (r < 0) {
1149 log_error("Failed to read locale data: %s", strerror(-r));
1150 goto finish;
1151 }
1152
1153 r = bus_event_loop_with_idle(event, bus, "org.freedesktop.locale1", DEFAULT_EXIT_USEC, NULL, NULL);
1154 if (r < 0) {
1155 log_error("Failed to run event loop: %s", strerror(-r));
1156 goto finish;
1157 }
1158
1159 finish:
1160 context_free(&context, bus);
1161
1162 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1163 }
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