summary refs log tree commit diff
path: root/gnu/services/desktop.scm
blob: 1be05fda4ebf6adc06ff005ce365c324c534ff6e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
;;; Copyright © 2017 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2017 ng0 <ng0@n0.is>
;;; Copyright © 2018 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017, 2019 Christopher Baines <mail@cbaines.net>
;;; Copyright © 2019 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
;;; Copyright © 2019 David Wilson <david@daviwil.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu services desktop)
  #:use-module (gnu services)
  #:use-module (gnu services shepherd)
  #:use-module (gnu services base)
  #:use-module (gnu services dbus)
  #:use-module (gnu services avahi)
  #:use-module (gnu services xorg)
  #:use-module (gnu services networking)
  #:use-module (gnu services sound)
  #:use-module ((gnu system file-systems)
                #:select (%elogind-file-systems))
  #:use-module (gnu system)
  #:use-module (gnu system shadow)
  #:use-module (gnu system pam)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages cups)
  #:use-module (gnu packages freedesktop)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages xfce)
  #:use-module (gnu packages avahi)
  #:use-module (gnu packages xdisorg)
  #:use-module (gnu packages suckless)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages libusb)
  #:use-module (gnu packages mate)
  #:use-module (gnu packages enlightenment)
  #:use-module (guix deprecation)
  #:use-module (guix records)
  #:use-module (guix packages)
  #:use-module (guix store)
  #:use-module (guix utils)
  #:use-module (guix gexp)
  #:use-module (srfi srfi-1)
  #:use-module (ice-9 match)
  #:export (<upower-configuration>
            upower-configuration
            upower-configuration?
            upower-configuration-upower
            upower-configuration-watts-up-pro?
            upower-configuration-poll-batteries?
            upower-configuration-ignore-lid?
            upower-configuration-use-percentage-for-policy?
            upower-configuration-percentage-low
            upower-configuration-percentage-critical
            upower-configuration-percentage-action
            upower-configuration-time-low
            upower-configuration-time-critical
            upower-configuration-time-action
            upower-configuration-critical-power-action

            upower-service
            upower-service-type

            udisks-configuration
            udisks-configuration?
            udisks-service
            udisks-service-type

            colord-service-type
            colord-service

            geoclue-application
            geoclue-configuration
            geoclue-configuration?
            %standard-geoclue-applications
            geoclue-service
            geoclue-service-type

            bluetooth-service-type
            bluetooth-configuration
            bluetooth-configuration?
            bluetooth-service

            elogind-configuration
            elogind-configuration?
            elogind-service
            elogind-service-type

            accountsservice-service-type
            accountsservice-service

            cups-pk-helper-service-type

            gnome-desktop-configuration
            gnome-desktop-configuration?
            gnome-desktop-service
            gnome-desktop-service-type

            mate-desktop-configuration
            mate-desktop-configuration?
            mate-desktop-service
            mate-desktop-service-type

            xfce-desktop-configuration
            xfce-desktop-configuration?
            xfce-desktop-service
            xfce-desktop-service-type

            x11-socket-directory-service

            enlightenment-desktop-configuration
            enlightenment-desktop-configuration?
            enlightenment-desktop-service-type

            inputattach-configuration
            inputattach-configuration?
            inputattach-service-type

            polkit-wheel-service

            gnome-keyring-configuration
            gnome-keyring-configuration?
            gnome-keyring-service-type

            %desktop-services))

;;; Commentary:
;;;
;;; This module contains service definitions for a "desktop" environment.
;;;
;;; Code:


;;;
;;; Helpers.
;;;

(define (bool value)
  (if value "true\n" "false\n"))

(define (package-direct-input-selector input)
  (lambda (package)
    (match (assoc-ref (package-direct-inputs package) input)
      ((package . _) package))))



;;;
;;; Upower D-Bus service.
;;;

(define-record-type* <upower-configuration>
  upower-configuration make-upower-configuration
  upower-configuration?
  (upower                     upower-configuration-upower
                              (default upower))
  (watts-up-pro?              upower-configuration-watts-up-pro?
                              (default #f))
  (poll-batteries?            upower-configuration-poll-batteries?
                              (default #t))
  (ignore-lid?                upower-configuration-ignore-lid?
                              (default #f))
  (use-percentage-for-policy? upower-configuration-use-percentage-for-policy?
                              (default #f))
  (percentage-low             upower-configuration-percentage-low
                              (default 10))
  (percentage-critical        upower-configuration-percentage-critical
                              (default 3))
  (percentage-action          upower-configuration-percentage-action
                              (default 2))
  (time-low                   upower-configuration-time-low
                              (default 1200))
  (time-critical              upower-configuration-time-critical
                              (default 300))
  (time-action                upower-configuration-time-action
                              (default 120))
  (critical-power-action      upower-configuration-critical-power-action
                              (default 'hybrid-sleep)))

(define* upower-configuration-file
  ;; Return an upower-daemon configuration file.
  (match-lambda
    (($ <upower-configuration> upower
        watts-up-pro? poll-batteries? ignore-lid? use-percentage-for-policy?
        percentage-low percentage-critical percentage-action time-low
        time-critical time-action critical-power-action)
     (plain-file "UPower.conf"
                 (string-append
                  "[UPower]\n"
                  "EnableWattsUpPro=" (bool watts-up-pro?)
                  "NoPollBatteries=" (bool (not poll-batteries?))
                  "IgnoreLid=" (bool ignore-lid?)
                  "UsePercentageForPolicy=" (bool use-percentage-for-policy?)
                  "PercentageLow=" (number->string percentage-low) "\n"
                  "PercentageCritical=" (number->string percentage-critical) "\n"
                  "PercentageAction=" (number->string percentage-action) "\n"
                  "TimeLow=" (number->string time-low) "\n"
                  "TimeCritical=" (number->string time-critical) "\n"
                  "TimeAction=" (number->string time-action) "\n"
                  "CriticalPowerAction=" (match critical-power-action
                                           ('hybrid-sleep "HybridSleep")
                                           ('hibernate "Hibernate")
                                           ('power-off "PowerOff"))
                  "\n")))))

(define %upower-activation
  #~(begin
      (use-modules (guix build utils))
      (mkdir-p "/var/lib/upower")))

(define (upower-dbus-service config)
  (list (wrapped-dbus-service (upower-configuration-upower config)
                              "libexec/upowerd"
                              `(("UPOWER_CONF_FILE_NAME"
                                 ,(upower-configuration-file config))))))

(define (upower-shepherd-service config)
  "Return a shepherd service for UPower with CONFIG."
  (let ((upower (upower-configuration-upower config))
        (config (upower-configuration-file config)))
    (list (shepherd-service
           (documentation "Run the UPower power and battery monitor.")
           (provision '(upower-daemon))
           (requirement '(dbus-system udev))

           (start #~(make-forkexec-constructor
                     (list (string-append #$upower "/libexec/upowerd"))
                     #:environment-variables
                     (list (string-append "UPOWER_CONF_FILE_NAME="
                                          #$config))))
           (stop #~(make-kill-destructor))))))

(define upower-service-type
  (let ((upower-package (compose list upower-configuration-upower)))
    (service-type (name 'upower)
                  (description
                   "Run @command{upowerd}}, a system-wide monitor for power
consumption and battery levels, with the given configuration settings.  It
implements the @code{org.freedesktop.UPower} D-Bus interface, and is notably
used by GNOME.")
                  (extensions
                   (list (service-extension dbus-root-service-type
                                            upower-dbus-service)
                         (service-extension shepherd-root-service-type
                                            upower-shepherd-service)
                         (service-extension activation-service-type
                                            (const %upower-activation))
                         (service-extension udev-service-type
                                            upower-package)

                         ;; Make the 'upower' command visible.
                         (service-extension profile-service-type
                                            upower-package)))
                  (default-value (upower-configuration)))))

(define-deprecated (upower-service #:key (upower upower)
                                   (watts-up-pro? #f)
                                   (poll-batteries? #t)
                                   (ignore-lid? #f)
                                   (use-percentage-for-policy? #f)
                                   (percentage-low 10)
                                   (percentage-critical 3)
                                   (percentage-action 2)
                                   (time-low 1200)
                                   (time-critical 300)
                                   (time-action 120)
                                   (critical-power-action 'hybrid-sleep))
  upower-service-type
  "Return a service that runs @uref{http://upower.freedesktop.org/,
@command{upowerd}}, a system-wide monitor for power consumption and battery
levels, with the given configuration settings.  It implements the
@code{org.freedesktop.UPower} D-Bus interface, and is notably used by GNOME."
  (let ((config (upower-configuration
                 (watts-up-pro? watts-up-pro?)
                 (poll-batteries? poll-batteries?)
                 (ignore-lid? ignore-lid?)
                 (use-percentage-for-policy? use-percentage-for-policy?)
                 (percentage-low percentage-low)
                 (percentage-critical percentage-critical)
                 (percentage-action percentage-action)
                 (time-low time-low)
                 (time-critical time-critical)
                 (time-action time-action)
                 (critical-power-action critical-power-action))))
    (service upower-service-type config)))


;;;
;;; GeoClue D-Bus service.
;;;

;; TODO: Export.
(define-record-type* <geoclue-configuration>
  geoclue-configuration make-geoclue-configuration
  geoclue-configuration?
  (geoclue geoclue-configuration-geoclue
           (default geoclue))
  (whitelist geoclue-configuration-whitelist)
  (wifi-geolocation-url geoclue-configuration-wifi-geolocation-url)
  (submit-data? geoclue-configuration-submit-data?)
  (wifi-submission-url geoclue-configuration-wifi-submission-url)
  (submission-nick geoclue-configuration-submission-nick)
  (applications geoclue-configuration-applications))

(define* (geoclue-application name #:key (allowed? #t) system? (users '()))
  "Configure default GeoClue access permissions for an application.  NAME is
the Desktop ID of the application, without the .desktop part.  If ALLOWED? is
true, the application will have access to location information by default.
The boolean SYSTEM? value indicates that an application is a system component
or not.  Finally USERS is a list of UIDs of all users for which this
application is allowed location info access.  An empty users list means all
users are allowed."
  (string-append
   "[" name "]\n"
   "allowed=" (bool allowed?)
   "system=" (bool system?)
   "users=" (string-join users ";") "\n"))

(define %standard-geoclue-applications
  (list (geoclue-application "gnome-datetime-panel" #:system? #t)
        (geoclue-application "epiphany" #:system? #f)
        (geoclue-application "firefox" #:system? #f)))

(define* (geoclue-configuration-file config)
  "Return a geoclue configuration file."
  (plain-file "geoclue.conf"
              (string-append
               "[agent]\n"
               "whitelist="
               (string-join (geoclue-configuration-whitelist config)
                            ";") "\n"
               "[wifi]\n"
               "url=" (geoclue-configuration-wifi-geolocation-url config) "\n"
               "submit-data=" (bool (geoclue-configuration-submit-data? config))
               "submission-url="
               (geoclue-configuration-wifi-submission-url config) "\n"
               "submission-nick="
               (geoclue-configuration-submission-nick config)
               "\n"
               (string-join (geoclue-configuration-applications config)
                            "\n"))))

(define (geoclue-dbus-service config)
  (list (wrapped-dbus-service (geoclue-configuration-geoclue config)
                              "libexec/geoclue"
                              `(("GEOCLUE_CONFIG_FILE"
                                 ,(geoclue-configuration-file config))))))

(define %geoclue-accounts
  (list (user-group (name "geoclue") (system? #t))
        (user-account
         (name "geoclue")
         (group "geoclue")
         (system? #t)
         (comment "GeoClue daemon user")
         (home-directory "/var/empty")
         (shell "/run/current-system/profile/sbin/nologin"))))

(define geoclue-service-type
  (service-type (name 'geoclue)
                (extensions
                 (list (service-extension dbus-root-service-type
                                          geoclue-dbus-service)
                       (service-extension account-service-type
                                          (const %geoclue-accounts))))))

(define* (geoclue-service #:key (geoclue geoclue)
                          (whitelist '())
                          (wifi-geolocation-url
                           ;; Mozilla geolocation service:
                           "https://location.services.mozilla.com/v1/geolocate?key=geoclue")
                          (submit-data? #f)
                          (wifi-submission-url
                           "https://location.services.mozilla.com/v1/submit?key=geoclue")
                          (submission-nick "geoclue")
                          (applications %standard-geoclue-applications))
  "Return a service that runs the @command{geoclue} location service.  This
service provides a D-Bus interface to allow applications to request access to
a user's physical location, and optionally to add information to online
location databases.  By default, only the GNOME date-time panel and the Icecat
and Epiphany web browsers are able to ask for the user's location, and in the
case of Icecat and Epiphany, both will ask the user for permission first.  See
@uref{https://wiki.freedesktop.org/www/Software/GeoClue/, the geoclue web
site} for more information."
  (service geoclue-service-type
           (geoclue-configuration
            (geoclue geoclue)
            (whitelist whitelist)
            (wifi-geolocation-url wifi-geolocation-url)
            (submit-data? submit-data?)
            (wifi-submission-url wifi-submission-url)
            (submission-nick submission-nick)
            (applications applications))))


;;;
;;; Bluetooth.
;;;

(define-record-type* <bluetooth-configuration>
  bluetooth-configuration make-bluetooth-configuration
  bluetooth-configuration?
  (bluez bluetooth-configuration-bluez (default bluez))
  (auto-enable? bluetooth-configuration-auto-enable? (default #f)))

(define (bluetooth-configuration-file config)
  "Return a configuration file for the systemd bluetooth service, as a string."
  (string-append
   "[Policy]\n"
   "AutoEnable=" (bool (bluetooth-configuration-auto-enable?
                        config))))

(define (bluetooth-directory config)
  (computed-file "etc-bluetooth"
                 #~(begin
                     (mkdir #$output)
                     (chdir #$output)
                     (call-with-output-file "main.conf"
                       (lambda (port)
                         (display #$(bluetooth-configuration-file config)
                                  port))))))

(define (bluetooth-shepherd-service config)
  "Return a shepherd service for @command{bluetoothd}."
  (shepherd-service
   (provision '(bluetooth))
   (requirement '(dbus-system udev))
   (documentation "Run the bluetoothd daemon.")
   (start #~(make-forkexec-constructor
             (string-append #$(bluetooth-configuration-bluez config)
                            "/libexec/bluetooth/bluetoothd")))
   (stop #~(make-kill-destructor))))

(define bluetooth-service-type
  (service-type
   (name 'bluetooth)
   (extensions
    (list (service-extension dbus-root-service-type
                             (compose list bluetooth-configuration-bluez))
          (service-extension udev-service-type
                             (compose list bluetooth-configuration-bluez))
          (service-extension etc-service-type
                             (lambda (config)
                               `(("bluetooth"
                                  ,(bluetooth-directory config)))))
          (service-extension shepherd-root-service-type
                             (compose list bluetooth-shepherd-service))))
   (description "Run the @command{bluetoothd} daemon, which manages all the
Bluetooth devices and provides a number of D-Bus interfaces.")))

(define* (bluetooth-service #:key (bluez bluez) (auto-enable? #f))
  "Return a service that runs the @command{bluetoothd} daemon, which manages
all the Bluetooth devices and provides a number of D-Bus interfaces.  When
AUTO-ENABLE? is true, the bluetooth controller is powered automatically at
boot.

Users need to be in the @code{lp} group to access the D-Bus service.
"
  (service bluetooth-service-type
           (bluetooth-configuration
            (bluez bluez)
            (auto-enable? auto-enable?))))


;;;
;;; Colord D-Bus service.
;;;

(define %colord-activation
  #~(begin
      (use-modules (guix build utils))
      (mkdir-p "/var/lib/colord")
      (let ((user (getpwnam "colord")))
        (chown "/var/lib/colord"
               (passwd:uid user) (passwd:gid user)))))

(define %colord-accounts
  (list (user-group (name "colord") (system? #t))
        (user-account
         (name "colord")
         (group "colord")
         (system? #t)
         (comment "colord daemon user")
         (home-directory "/var/empty")
         (shell (file-append shadow "/sbin/nologin")))))

(define colord-service-type
  (service-type (name 'colord)
                (extensions
                 (list (service-extension account-service-type
                                          (const %colord-accounts))
                       (service-extension activation-service-type
                                          (const %colord-activation))

                       ;; Colord is a D-Bus service that dbus-daemon can
                       ;; activate.
                       (service-extension dbus-root-service-type list)

                       ;; Colord provides "color device" rules for udev.
                       (service-extension udev-service-type list)

                       ;; It provides polkit "actions".
                       (service-extension polkit-service-type list)))
                (default-value colord)
                (description
                 "Run @command{colord}, a system service with a D-Bus
interface to manage the color profiles of input and output devices such as
screens and scanners.")))

(define-deprecated (colord-service #:key (colord colord))
  colord-service-type
  "Return a service that runs @command{colord}, a system service with a D-Bus
interface to manage the color profiles of input and output devices such as
screens and scanners.  It is notably used by the GNOME Color Manager graphical
tool.  See @uref{http://www.freedesktop.org/software/colord/, the colord web
site} for more information."
  (service colord-service-type colord))


;;;
;;; UDisks.
;;;

(define-record-type* <udisks-configuration>
  udisks-configuration make-udisks-configuration
  udisks-configuration?
  (udisks   udisks-configuration-udisks
            (default udisks)))

(define %udisks-activation
  (with-imported-modules '((guix build utils))
    #~(begin
        (use-modules (guix build utils))

        (let ((run-dir "/var/run/udisks2"))
          (mkdir-p run-dir)
          (chmod run-dir #o700)))))

(define udisks-service-type
  (let ((udisks-package (lambda (config)
                          (list (udisks-configuration-udisks config)))))
    (service-type (name 'udisks)
                  (extensions
                   (list (service-extension polkit-service-type
                                            udisks-package)
                         (service-extension dbus-root-service-type
                                            udisks-package)
                         (service-extension udev-service-type
                                            udisks-package)
                         (service-extension activation-service-type
                                            (const %udisks-activation))

                         ;; Profile 'udisksctl' & co. in the system profile.
                         (service-extension profile-service-type
                                            udisks-package))))))

(define* (udisks-service #:key (udisks udisks))
  "Return a service for @uref{http://udisks.freedesktop.org/docs/latest/,
UDisks}, a @dfn{disk management} daemon that provides user interfaces with
notifications and ways to mount/unmount disks.  Programs that talk to UDisks
include the @command{udisksctl} command, part of UDisks, and GNOME Disks."
  (service udisks-service-type
           (udisks-configuration (udisks udisks))))


;;;
;;; Elogind login and seat management service.
;;;

(define-record-type* <elogind-configuration> elogind-configuration
  make-elogind-configuration
  elogind-configuration?
  (elogind                         elogind-package
                                   (default elogind))
  (kill-user-processes?            elogind-kill-user-processes?
                                   (default #f))
  (kill-only-users                 elogind-kill-only-users
                                   (default '()))
  (kill-exclude-users              elogind-kill-exclude-users
                                   (default '("root")))
  (inhibit-delay-max-seconds       elogind-inhibit-delay-max-seconds
                                   (default 5))
  (handle-power-key                elogind-handle-power-key
                                   (default 'poweroff))
  (handle-suspend-key              elogind-handle-suspend-key
                                   (default 'suspend))
  (handle-hibernate-key            elogind-handle-hibernate-key
                                   ;; (default 'hibernate)
                                   ;; XXX Ignore it for now, since we don't
                                   ;; yet handle resume-from-hibernation in
                                   ;; our initrd.
                                   (default 'ignore))
  (handle-lid-switch               elogind-handle-lid-switch
                                   (default 'suspend))
  (handle-lid-switch-docked        elogind-handle-lid-switch-docked
                                   (default 'ignore))
  (power-key-ignore-inhibited?     elogind-power-key-ignore-inhibited?
                                   (default #f))
  (suspend-key-ignore-inhibited?   elogind-suspend-key-ignore-inhibited?
                                   (default #f))
  (hibernate-key-ignore-inhibited? elogind-hibernate-key-ignore-inhibited?
                                   (default #f))
  (lid-switch-ignore-inhibited?    elogind-lid-switch-ignore-inhibited?
                                   (default #t))
  (holdoff-timeout-seconds         elogind-holdoff-timeout-seconds
                                   (default 30))
  (idle-action                     elogind-idle-action
                                   (default 'ignore))
  (idle-action-seconds             elogind-idle-action-seconds
                                   (default (* 30 60)))
  (runtime-directory-size-percent  elogind-runtime-directory-size-percent
                                   (default 10))
  (runtime-directory-size          elogind-runtime-directory-size
                                   (default #f))
  (remove-ipc?                     elogind-remove-ipc?
                                   (default #t))

  (suspend-state                   elogind-suspend-state
                                   (default '("mem" "standby" "freeze")))
  (suspend-mode                    elogind-suspend-mode
                                   (default '()))
  (hibernate-state                 elogind-hibernate-state
                                   (default '("disk")))
  (hibernate-mode                  elogind-hibernate-mode
                                   (default '("platform" "shutdown")))
  (hybrid-sleep-state              elogind-hybrid-sleep-state
                                   (default '("disk")))
  (hybrid-sleep-mode               elogind-hybrid-sleep-mode
                                   (default
                                     '("suspend" "platform" "shutdown"))))

(define (elogind-configuration-file config)
  (define (yesno x)
    (match x
      (#t "yes")
      (#f "no")
      (_ (error "expected #t or #f, instead got:" x))))
  (define char-set:user-name
    (string->char-set "abcdefghijklmnopqrstuvwxyz0123456789_-"))
  (define (valid-list? l pred)
    (and-map (lambda (x) (string-every pred x)) l))
  (define (user-name-list users)
    (unless (valid-list? users char-set:user-name)
      (error "invalid user list" users))
    (string-join users " "))
  (define (enum val allowed)
    (unless (memq val allowed)
      (error "invalid value" val allowed))
    (symbol->string val))
  (define (non-negative-integer x)
    (unless (exact-integer? x) (error "not an integer" x))
    (when (negative? x) (error "negative number not allowed" x))
    (number->string x))
  (define handle-actions
    '(ignore poweroff reboot halt kexec suspend hibernate hybrid-sleep lock))
  (define (handle-action x)
    (enum x handle-actions))
  (define (sleep-list tokens)
    (unless (valid-list? tokens char-set:user-name)
      (error "invalid sleep list" tokens))
    (string-join tokens " "))
  (define-syntax ini-file-clause
    (syntax-rules ()
      ((_ config (prop (parser getter)))
       (string-append prop "=" (parser (getter config)) "\n"))
      ((_ config str)
       (string-append str "\n"))))
  (define-syntax-rule (ini-file config file clause ...)
    (plain-file file (string-append (ini-file-clause config clause) ...)))
  (ini-file
   config "logind.conf"
   "[Login]"
   ("KillUserProcesses" (yesno elogind-kill-user-processes?))
   ("KillOnlyUsers" (user-name-list elogind-kill-only-users))
   ("KillExcludeUsers" (user-name-list elogind-kill-exclude-users))
   ("InhibitDelayMaxSec" (non-negative-integer elogind-inhibit-delay-max-seconds))
   ("HandlePowerKey" (handle-action elogind-handle-power-key))
   ("HandleSuspendKey" (handle-action elogind-handle-suspend-key))
   ("HandleHibernateKey" (handle-action elogind-handle-hibernate-key))
   ("HandleLidSwitch" (handle-action elogind-handle-lid-switch))
   ("HandleLidSwitchDocked" (handle-action elogind-handle-lid-switch-docked))
   ("PowerKeyIgnoreInhibited" (yesno elogind-power-key-ignore-inhibited?))
   ("SuspendKeyIgnoreInhibited" (yesno elogind-suspend-key-ignore-inhibited?))
   ("HibernateKeyIgnoreInhibited" (yesno elogind-hibernate-key-ignore-inhibited?))
   ("LidSwitchIgnoreInhibited" (yesno elogind-lid-switch-ignore-inhibited?))
   ("HoldoffTimeoutSec" (non-negative-integer elogind-holdoff-timeout-seconds))
   ("IdleAction" (handle-action elogind-idle-action))
   ("IdleActionSec" (non-negative-integer elogind-idle-action-seconds))
   ("RuntimeDirectorySize"
    (identity
     (lambda (config)
       (match (elogind-runtime-directory-size-percent config)
         (#f (non-negative-integer (elogind-runtime-directory-size config)))
         (percent (string-append (non-negative-integer percent) "%"))))))
   ("RemoveIPC" (yesno elogind-remove-ipc?))
   "[Sleep]"
   ("SuspendState" (sleep-list elogind-suspend-state))
   ("SuspendMode" (sleep-list elogind-suspend-mode))
   ("HibernateState" (sleep-list elogind-hibernate-state))
   ("HibernateMode" (sleep-list elogind-hibernate-mode))
   ("HybridSleepState" (sleep-list elogind-hybrid-sleep-state))
   ("HybridSleepMode" (sleep-list elogind-hybrid-sleep-mode))))

(define (elogind-dbus-service config)
  (list (wrapped-dbus-service (elogind-package config)
                              "libexec/elogind/elogind"
                              `(("ELOGIND_CONF_FILE"
                                 ,(elogind-configuration-file config))))))

(define (pam-extension-procedure config)
  "Return an extension for PAM-ROOT-SERVICE-TYPE that ensures that all the PAM
services use 'pam_elogind.so', a module that allows elogind to keep track of
logged-in users (run 'loginctl' to see elogind's world view of users and
seats.)"
  (define pam-elogind
    (pam-entry
     (control "required")
     (module (file-append (elogind-package config)
                          "/lib/security/pam_elogind.so"))))

  (list (lambda (pam)
          (pam-service
           (inherit pam)
           (session (cons pam-elogind (pam-service-session pam)))))))

(define (elogind-shepherd-service config)
  "Return a Shepherd service to start elogind according to @var{config}."
  (list (shepherd-service
         (requirement '(dbus-system))
         (provision '(elogind))
         (start #~(make-forkexec-constructor
                   (list #$(file-append (elogind-package config)
                                        "/libexec/elogind/elogind"))
                   #:environment-variables
                   (list (string-append "ELOGIND_CONF_FILE="
                                        #$(elogind-configuration-file
                                           config)))))
         (stop #~(make-kill-destructor)))))

(define elogind-service-type
  (service-type (name 'elogind)
                (extensions
                 (list (service-extension dbus-root-service-type
                                          elogind-dbus-service)
                       (service-extension udev-service-type
                                          (compose list elogind-package))
                       (service-extension polkit-service-type
                                          (compose list elogind-package))

                       ;; Start elogind from the Shepherd rather than waiting
                       ;; for bus activation.  This ensures that it can handle
                       ;; events like lid close, etc.
                       (service-extension shepherd-root-service-type
                                          elogind-shepherd-service)

                       ;; Provide the 'loginctl' command.
                       (service-extension profile-service-type
                                          (compose list elogind-package))

                       ;; Extend PAM with pam_elogind.so.
                       (service-extension pam-root-service-type
                                          pam-extension-procedure)

                       ;; We need /run/user, /run/systemd, etc.
                       (service-extension file-system-service-type
                                          (const %elogind-file-systems))))
                (default-value (elogind-configuration))))

(define* (elogind-service #:key (config (elogind-configuration)))
  "Return a service that runs the @command{elogind} login and seat management
service.  The @command{elogind} service integrates with PAM to allow other
system components to know the set of logged-in users as well as their session
types (graphical, console, remote, etc.).  It can also clean up after users
when they log out."
  (service elogind-service-type config))


;;;
;;; AccountsService service.
;;;

(define %accountsservice-activation
  #~(begin
      (use-modules (guix build utils))
      (mkdir-p "/var/lib/AccountsService")))

(define accountsservice-service-type
  (service-type (name 'accountsservice)
                (extensions
                 (list (service-extension activation-service-type
                                          (const %accountsservice-activation))
                       (service-extension dbus-root-service-type list)
                       (service-extension polkit-service-type list)))))

(define* (accountsservice-service #:key (accountsservice accountsservice))
  "Return a service that runs AccountsService, a system service that
can list available accounts, change their passwords, and so on.
AccountsService integrates with PolicyKit to enable unprivileged users to
acquire the capability to modify their system configuration.
@uref{https://www.freedesktop.org/wiki/Software/AccountsService/, the
accountsservice web site} for more information."
  (service accountsservice-service-type accountsservice))


;;;
;;; cups-pk-helper service.
;;;

(define cups-pk-helper-service-type
  (service-type
   (name 'cups-pk-helper)
   (description
    "PolicyKit helper to configure CUPS with fine-grained privileges.")
   (extensions
    (list (service-extension dbus-root-service-type list)
          (service-extension polkit-service-type list)))
   (default-value cups-pk-helper)))


;;;
;;; GNOME desktop service.
;;;

(define-record-type* <gnome-desktop-configuration> gnome-desktop-configuration
  make-gnome-desktop-configuration
  gnome-desktop-configuration?
  (gnome-package gnome-package (default gnome)))

(define (gnome-polkit-settings config)
  "Return the list of GNOME dependencies that provide polkit actions and
rules."
  (let ((gnome (gnome-package config)))
    (map (lambda (name)
           ((package-direct-input-selector name) gnome))
         '("gnome-settings-daemon"
           "gnome-control-center"
           "gnome-system-monitor"
           "gvfs"))))

(define gnome-desktop-service-type
  (service-type
   (name 'gnome-desktop)
   (extensions
    (list (service-extension polkit-service-type
                             gnome-polkit-settings)
          (service-extension profile-service-type
                             (compose list
                                      gnome-package))))
   (default-value (gnome-desktop-configuration))
   (description "Run the GNOME desktop environment.")))

(define-deprecated (gnome-desktop-service #:key (config
                                                 (gnome-desktop-configuration)))
  gnome-desktop-service-type
  "Return a service that adds the @code{gnome} package to the system profile,
and extends polkit with the actions from @code{gnome-settings-daemon}."
  (service gnome-desktop-service-type config))

;; MATE Desktop service.
;; TODO: Add mate-screensaver.

(define-record-type* <mate-desktop-configuration> mate-desktop-configuration
  make-mate-desktop-configuration
  mate-desktop-configuration?
  (mate-package mate-package (default mate)))

(define mate-desktop-service-type
  (service-type
   (name 'mate-desktop)
   (extensions
    (list (service-extension polkit-service-type
                             (compose list
                                      (package-direct-input-selector
                                       "mate-settings-daemon")
                                      mate-package))
          (service-extension profile-service-type
                             (compose list
                                      mate-package))))
   (default-value (mate-desktop-configuration))
   (description "Run the MATE desktop environment.")))

(define-deprecated (mate-desktop-service #:key
                                         (config
                                          (mate-desktop-configuration)))
  mate-desktop-service-type
  "Return a service that adds the @code{mate} package to the system profile,
and extends polkit with the actions from @code{mate-settings-daemon}."
  (service mate-desktop-service-type config))


;;;
;;; XFCE desktop service.
;;;

(define-record-type* <xfce-desktop-configuration> xfce-desktop-configuration
  make-xfce-desktop-configuration
  xfce-desktop-configuration?
  (xfce xfce-package (default xfce)))

(define (xfce-polkit-settings config)
  "Return the list of XFCE dependencies that provide polkit actions and
rules."
  (let ((xfce (xfce-package config)))
    (map (lambda (name)
           ((package-direct-input-selector name) xfce))
         '("thunar"
           "xfce4-power-manager"))))

(define xfce-desktop-service-type
  (service-type
   (name 'xfce-desktop)
   (extensions
    (list (service-extension polkit-service-type
                             xfce-polkit-settings)
          (service-extension profile-service-type
                             (compose list xfce-package))))
   (default-value (xfce-desktop-configuration))
   (description "Run the Xfce desktop environment.")))

(define-deprecated (xfce-desktop-service #:key (config
                                                (xfce-desktop-configuration)))
  xfce-desktop-service-type
  "Return a service that adds the @code{xfce} package to the system profile,
and extends polkit with the ability for @code{thunar} to manipulate the file
system as root from within a user session, after the user has authenticated
with the administrator's password."
  (service xfce-desktop-service-type config))


;;;
;;; X11 socket directory service
;;;

(define x11-socket-directory-service
  ;; Return a service that creates /tmp/.X11-unix.  When using X11, libxcb
  ;; takes care of creating that directory.  However, when using XWayland, we
  ;; need to create beforehand.  Thus, create it unconditionally here.
  (simple-service 'x11-socket-directory
                  activation-service-type
                  (with-imported-modules '((guix build utils))
                    #~(begin
                        (use-modules (guix build utils))
                        (let ((directory "/tmp/.X11-unix"))
                          (mkdir-p directory)
                          (chmod directory #o777))))))

;;;
;;; Enlightenment desktop service.
;;;

(define-record-type* <enlightenment-desktop-configuration>
  enlightenment-desktop-configuration make-enlightenment-desktop-configuration
  enlightenment-desktop-configuration?
  ;; <package>
  (enlightenment        enlightenment-package
                        (default enlightenment)))

(define (enlightenment-setuid-programs enlightenment-desktop-configuration)
  (match-record enlightenment-desktop-configuration
                <enlightenment-desktop-configuration>
                (enlightenment)
    (let ((module-arch (match (string-tokenize (%current-system)
                                               (char-set-complement (char-set #\-)))
                              ((arch "linux") (string-append "linux-gnu-" arch))
                              ((arch "gnu")   (string-append "gnu-" arch)))))
      (list (file-append enlightenment
                         "/lib/enlightenment/utils/enlightenment_sys")
            (file-append enlightenment
                         "/lib/enlightenment/utils/enlightenment_backlight")
            ;; TODO: Move this binary to a screen-locker service.
            (file-append enlightenment
                         "/lib/enlightenment/utils/enlightenment_ckpasswd")
            (file-append enlightenment
                         (string-append
                           "/lib/enlightenment/modules/cpufreq/"
                           module-arch "-"
                           (package-version enlightenment)
                           "/freqset"))
            (file-append enlightenment
                         (string-append
                           "/lib/enlightenment/modules/sysinfo/"
                           module-arch "-"
                           (package-version enlightenment)
                           "/cpuclock_sysfs"))))))

(define enlightenment-desktop-service-type
  (service-type
   (name 'enlightenment-desktop)
   (extensions
    (list (service-extension dbus-root-service-type
                             (compose list
                                      (package-direct-input-selector
                                       "efl")
                                      enlightenment-package))
          (service-extension setuid-program-service-type
                             enlightenment-setuid-programs)
          (service-extension profile-service-type
                             (compose list
                                      enlightenment-package))))
   (default-value (enlightenment-desktop-configuration))
   (description
    "Return a service that adds the @code{enlightenment} package to the system
profile, and extends dbus with the ability for @code{efl} to generate
thumbnails and makes setuid the programs which enlightenment needs to function
as expected.")))


;;;
;;; inputattach-service-type
;;;

(define-record-type* <inputattach-configuration>
  inputattach-configuration
  make-inputattach-configuration
  inputattach-configuration?
  (device-type inputattach-configuration-device-type
               (default "wacom"))
  (device inputattach-configuration-device
          (default "/dev/ttyS0"))
  (baud-rate inputattach-configuration-baud-rate
             (default #f))
  (log-file inputattach-configuration-log-file
            (default #f)))

(define inputattach-shepherd-service
  (match-lambda
    (($ <inputattach-configuration> type device baud-rate log-file)
     (let ((args (append (if baud-rate
                             (list "--baud-rate" (number->string baud-rate))
                             '())
                         (list (string-append "--" type)
                               device))))
       (list (shepherd-service
              (provision '(inputattach))
              (requirement '(udev))
              (documentation "inputattach daemon")
              (start #~(make-forkexec-constructor
                        (cons (string-append #$inputattach
                                             "/bin/inputattach")
                              (quote #$args))
                        #:log-file #$log-file))
              (stop #~(make-kill-destructor))))))))

(define inputattach-service-type
  (service-type
   (name 'inputattach)
   (extensions
    (list (service-extension shepherd-root-service-type
                             inputattach-shepherd-service)))
   (default-value (inputattach-configuration))
   (description "Return a service that runs inputattach on a device and
dispatches events from it.")))


;;;
;;; gnome-keyring-service-type
;;;

(define-record-type* <gnome-keyring-configuration> gnome-keyring-configuration
  make-gnome-keyring-configuration
  gnome-keyring-configuration?
  (keyring gnome-keyring-package (default gnome-keyring))
  (pam-services gnome-keyring-pam-services (default '(("gdm-password" . login)
                                                      ("passwd" . passwd)))))

(define (pam-gnome-keyring config)
  (define (%pam-keyring-entry . arguments)
    (pam-entry
     (control "optional")
     (module (file-append (gnome-keyring-package config)
                          "/lib/security/pam_gnome_keyring.so"))
     (arguments arguments)))

  (list
   (lambda (service)
     (case (assoc-ref (gnome-keyring-pam-services config)
                      (pam-service-name service))
       ((login)
        (pam-service
         (inherit service)
         (auth (append (pam-service-auth service)
                       (list (%pam-keyring-entry))))
         (session (append (pam-service-session service)
                          (list (%pam-keyring-entry "auto_start"))))))
       ((passwd)
        (pam-service
         (inherit service)
         (password (append (pam-service-password service)
                           (list (%pam-keyring-entry))))))
       (else service)))))

(define gnome-keyring-service-type
  (service-type
   (name 'gnome-keyring)
   (extensions (list
                (service-extension pam-root-service-type pam-gnome-keyring)))
   (default-value (gnome-keyring-configuration))
   (description "Return a service, that adds the @code{gnome-keyring} package
to the system profile and extends PAM with entries using
@code{pam_gnome_keyring.so}, unlocking a user's login keyring when they log in
or setting its password with passwd.")))


;;;
;;; polkit-wheel-service -- Allow wheel group to perform admin actions
;;;

(define polkit-wheel
  (file-union
   "polkit-wheel"
   `(("share/polkit-1/rules.d/wheel.rules"
      ,(plain-file
        "wheel.rules"
        "polkit.addAdminRule(function(action, subject) {
    return [\"unix-group:wheel\"];
});
")))))

(define polkit-wheel-service
  (simple-service 'polkit-wheel polkit-service-type (list polkit-wheel)))


;;;
;;; The default set of desktop services.
;;;

(define %desktop-services
  ;; List of services typically useful for a "desktop" use case.
  (cons* (service gdm-service-type)

         ;; Screen lockers are a pretty useful thing and these are small.
         (screen-locker-service slock)
         (screen-locker-service xlockmore "xlock")

         ;; Add udev rules for MTP devices so that non-root users can access
         ;; them.
         (simple-service 'mtp udev-service-type (list libmtp))
         ;; Add polkit rules, so that non-root users in the wheel group can
         ;; perform administrative tasks (similar to "sudo").
         polkit-wheel-service

         ;; NetworkManager and its applet.
         (service network-manager-service-type)
         (service wpa-supplicant-service-type)    ;needed by NetworkManager
         (simple-service 'network-manager-applet
                         profile-service-type
                         (list network-manager-applet))
         (service modem-manager-service-type)
         (service usb-modeswitch-service-type)

         ;; The D-Bus clique.
         (service avahi-service-type)
         (udisks-service)
         (service upower-service-type)
         (accountsservice-service)
         (service cups-pk-helper-service-type)
         (service colord-service-type)
         (geoclue-service)
         (service polkit-service-type)
         (elogind-service)
         (dbus-service)

         (service ntp-service-type)

         x11-socket-directory-service

         (service pulseaudio-service-type)
         (service alsa-service-type)

         %base-services))

;;; desktop.scm ends here