aboutsummaryrefslogtreecommitdiffstats
path: root/modules/setting/setting.go
blob: e37b7883420227d9db83f4975739de520744ea5c (plain)
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
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package setting

import (
	"encoding/base64"
	"fmt"
	"io"
	"io/ioutil"
	"math"
	"net"
	"net/url"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	"text/template"
	"time"

	"code.gitea.io/gitea/modules/generate"
	"code.gitea.io/gitea/modules/log"
	"code.gitea.io/gitea/modules/user"
	"code.gitea.io/gitea/modules/util"

	jsoniter "github.com/json-iterator/go"
	shellquote "github.com/kballard/go-shellquote"
	"github.com/unknwon/com"
	gossh "golang.org/x/crypto/ssh"
	ini "gopkg.in/ini.v1"
)

// Scheme describes protocol types
type Scheme string

// enumerates all the scheme types
const (
	HTTP       Scheme = "http"
	HTTPS      Scheme = "https"
	FCGI       Scheme = "fcgi"
	FCGIUnix   Scheme = "fcgi+unix"
	UnixSocket Scheme = "unix"
)

// LandingPage describes the default page
type LandingPage string

// enumerates all the landing page types
const (
	LandingPageHome          LandingPage = "/"
	LandingPageExplore       LandingPage = "/explore"
	LandingPageOrganizations LandingPage = "/explore/organizations"
	LandingPageLogin         LandingPage = "/user/login"
)

// enumerates all the types of captchas
const (
	ImageCaptcha = "image"
	ReCaptcha    = "recaptcha"
	HCaptcha     = "hcaptcha"
)

// settings
var (
	// AppVer is the version of the current build of Gitea. It is set in main.go from main.Version.
	AppVer string
	// AppBuiltWith represents a human readable version go runtime build version and build tags. (See main.go formatBuiltWith().)
	AppBuiltWith string
	// AppStartTime store time gitea has started
	AppStartTime time.Time
	// AppName is the Application name, used in the page title.
	// It maps to ini:"APP_NAME"
	AppName string
	// AppURL is the Application ROOT_URL. It always has a '/' suffix
	// It maps to ini:"ROOT_URL"
	AppURL string
	// AppSubURL represents the sub-url mounting point for gitea. It is either "" or starts with '/' and ends without '/', such as '/{subpath}'.
	// This value is empty if site does not have sub-url.
	AppSubURL string
	// AppPath represents the path to the gitea binary
	AppPath string
	// AppWorkPath is the "working directory" of Gitea. It maps to the environment variable GITEA_WORK_DIR.
	// If that is not set it is the default set here by the linker or failing that the directory of AppPath.
	//
	// AppWorkPath is used as the base path for several other paths.
	AppWorkPath string
	// AppDataPath is the default path for storing data.
	// It maps to ini:"APP_DATA_PATH" and defaults to AppWorkPath + "/data"
	AppDataPath string

	// Server settings
	Protocol             Scheme
	Domain               string
	HTTPAddr             string
	HTTPPort             string
	LocalURL             string
	RedirectOtherPort    bool
	PortToRedirect       string
	OfflineMode          bool
	CertFile             string
	KeyFile              string
	StaticRootPath       string
	StaticCacheTime      time.Duration
	EnableGzip           bool
	LandingPageURL       LandingPage
	UnixSocketPermission uint32
	EnablePprof          bool
	PprofDataPath        string
	EnableLetsEncrypt    bool
	LetsEncryptTOS       bool
	LetsEncryptDirectory string
	LetsEncryptEmail     string
	GracefulRestartable  bool
	GracefulHammerTime   time.Duration
	StartupTimeout       time.Duration
	PerWriteTimeout      = 30 * time.Second
	PerWritePerKbTimeout = 10 * time.Second
	StaticURLPrefix      string
	AbsoluteAssetURL     string

	SSH = struct {
		Disabled                              bool               `ini:"DISABLE_SSH"`
		StartBuiltinServer                    bool               `ini:"START_SSH_SERVER"`
		BuiltinServerUser                     string             `ini:"BUILTIN_SSH_SERVER_USER"`
		Domain                                string             `ini:"SSH_DOMAIN"`
		Port                                  int                `ini:"SSH_PORT"`
		ListenHost                            string             `ini:"SSH_LISTEN_HOST"`
		ListenPort                            int                `ini:"SSH_LISTEN_PORT"`
		RootPath                              string             `ini:"SSH_ROOT_PATH"`
		ServerCiphers                         []string           `ini:"SSH_SERVER_CIPHERS"`
		ServerKeyExchanges                    []string           `ini:"SSH_SERVER_KEY_EXCHANGES"`
		ServerMACs                            []string           `ini:"SSH_SERVER_MACS"`
		ServerHostKeys                        []string           `ini:"SSH_SERVER_HOST_KEYS"`
		KeyTestPath                           string             `ini:"SSH_KEY_TEST_PATH"`
		KeygenPath                            string             `ini:"SSH_KEYGEN_PATH"`
		AuthorizedKeysBackup                  bool               `ini:"SSH_AUTHORIZED_KEYS_BACKUP"`
		AuthorizedPrincipalsBackup            bool               `ini:"SSH_AUTHORIZED_PRINCIPALS_BACKUP"`
		AuthorizedKeysCommandTemplate         string             `ini:"SSH_AUTHORIZED_KEYS_COMMAND_TEMPLATE"`
		AuthorizedKeysCommandTemplateTemplate *template.Template `ini:"-"`
		MinimumKeySizeCheck                   bool               `ini:"-"`
		MinimumKeySizes                       map[string]int     `ini:"-"`
		CreateAuthorizedKeysFile              bool               `ini:"SSH_CREATE_AUTHORIZED_KEYS_FILE"`
		CreateAuthorizedPrincipalsFile        bool               `ini:"SSH_CREATE_AUTHORIZED_PRINCIPALS_FILE"`
		ExposeAnonymous                       bool               `ini:"SSH_EXPOSE_ANONYMOUS"`
		AuthorizedPrincipalsAllow             []string           `ini:"SSH_AUTHORIZED_PRINCIPALS_ALLOW"`
		AuthorizedPrincipalsEnabled           bool               `ini:"-"`
		TrustedUserCAKeys                     []string           `ini:"SSH_TRUSTED_USER_CA_KEYS"`
		TrustedUserCAKeysFile                 string             `ini:"SSH_TRUSTED_USER_CA_KEYS_FILENAME"`
		TrustedUserCAKeysParsed               []gossh.PublicKey  `ini:"-"`
		PerWriteTimeout                       time.Duration      `ini:"SSH_PER_WRITE_TIMEOUT"`
		PerWritePerKbTimeout                  time.Duration      `ini:"SSH_PER_WRITE_PER_KB_TIMEOUT"`
	}{
		Disabled:                      false,
		StartBuiltinServer:            false,
		Domain:                        "",
		Port:                          22,
		ServerCiphers:                 []string{"aes128-ctr", "aes192-ctr", "aes256-ctr", "aes128-gcm@openssh.com", "arcfour256", "arcfour128"},
		ServerKeyExchanges:            []string{"diffie-hellman-group1-sha1", "diffie-hellman-group14-sha1", "ecdh-sha2-nistp256", "ecdh-sha2-nistp384", "ecdh-sha2-nistp521", "curve25519-sha256@libssh.org"},
		ServerMACs:                    []string{"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1", "hmac-sha1-96"},
		KeygenPath:                    "ssh-keygen",
		MinimumKeySizeCheck:           true,
		MinimumKeySizes:               map[string]int{"ed25519": 256, "ed25519-sk": 256, "ecdsa": 256, "ecdsa-sk": 256, "rsa": 2048},
		ServerHostKeys:                []string{"ssh/gitea.rsa", "ssh/gogs.rsa"},
		AuthorizedKeysCommandTemplate: "{{.AppPath}} --config={{.CustomConf}} serv key-{{.Key.ID}}",
		PerWriteTimeout:               PerWriteTimeout,
		PerWritePerKbTimeout:          PerWritePerKbTimeout,
	}

	// Security settings
	InstallLock                        bool
	SecretKey                          string
	LogInRememberDays                  int
	CookieUserName                     string
	CookieRememberName                 string
	ReverseProxyAuthUser               string
	ReverseProxyAuthEmail              string
	ReverseProxyLimit                  int
	ReverseProxyTrustedProxies         []string
	MinPasswordLength                  int
	ImportLocalPaths                   bool
	DisableGitHooks                    bool
	DisableWebhooks                    bool
	OnlyAllowPushIfGiteaEnvironmentSet bool
	PasswordComplexity                 []string
	PasswordHashAlgo                   string
	PasswordCheckPwn                   bool

	// UI settings
	UI = struct {
		ExplorePagingNum      int
		IssuePagingNum        int
		RepoSearchPagingNum   int
		MembersPagingNum      int
		FeedMaxCommitNum      int
		FeedPagingNum         int
		GraphMaxCommitNum     int
		CodeCommentLines      int
		ReactionMaxUserNum    int
		ThemeColorMetaTag     string
		MaxDisplayFileSize    int64
		ShowUserEmail         bool
		DefaultShowFullName   bool
		DefaultTheme          string
		Themes                []string
		Reactions             []string
		ReactionsMap          map[string]bool `ini:"-"`
		CustomEmojis          []string
		CustomEmojisMap       map[string]string `ini:"-"`
		SearchRepoDescription bool
		UseServiceWorker      bool

		Notification struct {
			MinTimeout            time.Duration
			TimeoutStep           time.Duration
			MaxTimeout            time.Duration
			EventSourceUpdateTime time.Duration
		} `ini:"ui.notification"`

		SVG struct {
			Enabled bool `ini:"ENABLE_RENDER"`
		} `ini:"ui.svg"`

		CSV struct {
			MaxFileSize int64
		} `ini:"ui.csv"`

		Admin struct {
			UserPagingNum   int
			RepoPagingNum   int
			NoticePagingNum int
			OrgPagingNum    int
		} `ini:"ui.admin"`
		User struct {
			RepoPagingNum int
		} `ini:"ui.user"`
		Meta struct {
			Author      string
			Description string
			Keywords    string
		} `ini:"ui.meta"`
	}{
		ExplorePagingNum:    20,
		IssuePagingNum:      10,
		RepoSearchPagingNum: 10,
		MembersPagingNum:    20,
		FeedMaxCommitNum:    5,
		FeedPagingNum:       20,
		GraphMaxCommitNum:   100,
		CodeCommentLines:    4,
		ReactionMaxUserNum:  10,
		ThemeColorMetaTag:   `#6cc644`,
		MaxDisplayFileSize:  8388608,
		DefaultTheme:        `gitea`,
		Themes:              []string{`gitea`, `arc-green`},
		Reactions:           []string{`+1`, `-1`, `laugh`, `hooray`, `confused`, `heart`, `rocket`, `eyes`},
		CustomEmojis:        []string{`gitea`},
		CustomEmojisMap:     map[string]string{"gitea": ":gitea:"},
		Notification: struct {
			MinTimeout            time.Duration
			TimeoutStep           time.Duration
			MaxTimeout            time.Duration
			EventSourceUpdateTime time.Duration
		}{
			MinTimeout:            10 * time.Second,
			TimeoutStep:           10 * time.Second,
			MaxTimeout:            60 * time.Second,
			EventSourceUpdateTime: 10 * time.Second,
		},
		SVG: struct {
			Enabled bool `ini:"ENABLE_RENDER"`
		}{
			Enabled: true,
		},
		CSV: struct {
			MaxFileSize int64
		}{
			MaxFileSize: 524288,
		},
		Admin: struct {
			UserPagingNum   int
			RepoPagingNum   int
			NoticePagingNum int
			OrgPagingNum    int
		}{
			UserPagingNum:   50,
			RepoPagingNum:   50,
			NoticePagingNum: 25,
			OrgPagingNum:    50,
		},
		User: struct {
			RepoPagingNum int
		}{
			RepoPagingNum: 15,
		},
		Meta: struct {
			Author      string
			Description string
			Keywords    string
		}{
			Author:      "Gitea - Git with a cup of tea",
			Description: "Gitea (Git with a cup of tea) is a painless self-hosted Git service written in Go",
			Keywords:    "go,git,self-hosted,gitea",
		},
	}

	// Markdown settings
	Markdown = struct {
		EnableHardLineBreakInComments  bool
		EnableHardLineBreakInDocuments bool
		CustomURLSchemes               []string `ini:"CUSTOM_URL_SCHEMES"`
		FileExtensions                 []string
	}{
		EnableHardLineBreakInComments:  true,
		EnableHardLineBreakInDocuments: false,
		FileExtensions:                 strings.Split(".md,.markdown,.mdown,.mkd", ","),
	}

	// Admin settings
	Admin struct {
		DisableRegularOrgCreation bool
		DefaultEmailNotification  string
	}

	// Log settings
	LogLevel           log.Level
	StacktraceLogLevel string
	LogRootPath        string
	DisableRouterLog   bool
	RouterLogLevel     log.Level
	EnableAccessLog    bool
	EnableSSHLog       bool
	AccessLogTemplate  string
	EnableXORMLog      bool

	// Time settings
	TimeFormat string
	// UILocation is the location on the UI, so that we can display the time on UI.
	DefaultUILocation = time.Local

	CSRFCookieName     = "_csrf"
	CSRFCookieHTTPOnly = true

	ManifestData string

	// Mirror settings
	Mirror struct {
		DefaultInterval time.Duration
		MinInterval     time.Duration
	}

	// API settings
	API = struct {
		EnableSwagger          bool
		SwaggerURL             string
		MaxResponseItems       int
		DefaultPagingNum       int
		DefaultGitTreesPerPage int
		DefaultMaxBlobSize     int64
	}{
		EnableSwagger:          true,
		SwaggerURL:             "",
		MaxResponseItems:       50,
		DefaultPagingNum:       30,
		DefaultGitTreesPerPage: 1000,
		DefaultMaxBlobSize:     10485760,
	}

	OAuth2 = struct {
		Enable                     bool
		AccessTokenExpirationTime  int64
		RefreshTokenExpirationTime int64
		InvalidateRefreshTokens    bool
		JWTSigningAlgorithm        string `ini:"JWT_SIGNING_ALGORITHM"`
		JWTSecretBase64            string `ini:"JWT_SECRET"`
		JWTSigningPrivateKeyFile   string `ini:"JWT_SIGNING_PRIVATE_KEY_FILE"`
		MaxTokenLength             int
	}{
		Enable:                     true,
		AccessTokenExpirationTime:  3600,
		RefreshTokenExpirationTime: 730,
		InvalidateRefreshTokens:    false,
		JWTSigningAlgorithm:        "RS256",
		JWTSigningPrivateKeyFile:   "jwt/private.pem",
		MaxTokenLength:             math.MaxInt16,
	}

	U2F = struct {
		AppID         string
		TrustedFacets []string
	}{}

	// Metrics settings
	Metrics = struct {
		Enabled bool
		Token   string
	}{
		Enabled: false,
		Token:   "",
	}

	// I18n settings
	Langs []string
	Names []string

	// Highlight settings are loaded in modules/template/highlight.go

	// Other settings
	ShowFooterBranding         bool
	ShowFooterVersion          bool
	ShowFooterTemplateLoadTime bool

	// Global setting objects
	Cfg           *ini.File
	CustomPath    string // Custom directory path
	CustomConf    string
	PIDFile       = "/run/gitea.pid"
	WritePIDFile  bool
	RunMode       string
	RunUser       string
	IsWindows     bool
	HasRobotsTxt  bool
	InternalToken string // internal access token
)

// IsProd if it's a production mode
func IsProd() bool {
	return strings.EqualFold(RunMode, "prod")
}

func getAppPath() (string, error) {
	var appPath string
	var err error
	if IsWindows && filepath.IsAbs(os.Args[0]) {
		appPath = filepath.Clean(os.Args[0])
	} else {
		appPath, err = exec.LookPath(os.Args[0])
	}

	if err != nil {
		return "", err
	}
	appPath, err = filepath.Abs(appPath)
	if err != nil {
		return "", err
	}
	// Note: we don't use path.Dir here because it does not handle case
	//	which path starts with two "/" in Windows: "//psf/Home/..."
	return strings.ReplaceAll(appPath, "\\", "/"), err
}

func getWorkPath(appPath string) string {
	workPath := AppWorkPath

	if giteaWorkPath, ok := os.LookupEnv("GITEA_WORK_DIR"); ok {
		workPath = giteaWorkPath
	}
	if len(workPath) == 0 {
		i := strings.LastIndex(appPath, "/")
		if i == -1 {
			workPath = appPath
		} else {
			workPath = appPath[:i]
		}
	}
	return strings.ReplaceAll(workPath, "\\", "/")
}

func init() {
	IsWindows = runtime.GOOS == "windows"
	// We can rely on log.CanColorStdout being set properly because modules/log/console_windows.go comes before modules/setting/setting.go lexicographically
	// By default set this logger at Info - we'll change it later but we need to start with something.
	log.NewLogger(0, "console", "console", fmt.Sprintf(`{"level": "info", "colorize": %t, "stacktraceLevel": "none"}`, log.CanColorStdout))

	var err error
	if AppPath, err = getAppPath(); err != nil {
		log.Fatal("Failed to get app path: %v", err)
	}
	AppWorkPath = getWorkPath(AppPath)
}

func forcePathSeparator(path string) {
	if strings.Contains(path, "\\") {
		log.Fatal("Do not use '\\' or '\\\\' in paths, instead, please use '/' in all places")
	}
}

// IsRunUserMatchCurrentUser returns false if configured run user does not match
// actual user that runs the app. The first return value is the actual user name.
// This check is ignored under Windows since SSH remote login is not the main
// method to login on Windows.
func IsRunUserMatchCurrentUser(runUser string) (string, bool) {
	if IsWindows || SSH.StartBuiltinServer {
		return "", true
	}

	currentUser := user.CurrentUsername()
	return currentUser, runUser == currentUser
}

func createPIDFile(pidPath string) {
	currentPid := os.Getpid()
	if err := os.MkdirAll(filepath.Dir(pidPath), os.ModePerm); err != nil {
		log.Fatal("Failed to create PID folder: %v", err)
	}

	file, err := os.Create(pidPath)
	if err != nil {
		log.Fatal("Failed to create PID file: %v", err)
	}
	defer file.Close()
	if _, err := file.WriteString(strconv.FormatInt(int64(currentPid), 10)); err != nil {
		log.Fatal("Failed to write PID information: %v", err)
	}
}

// SetCustomPathAndConf will set CustomPath and CustomConf with reference to the
// GITEA_CUSTOM environment variable and with provided overrides before stepping
// back to the default
func SetCustomPathAndConf(providedCustom, providedConf, providedWorkPath string) {
	if len(providedWorkPath) != 0 {
		AppWorkPath = filepath.ToSlash(providedWorkPath)
	}
	if giteaCustom, ok := os.LookupEnv("GITEA_CUSTOM"); ok {
		CustomPath = giteaCustom
	}
	if len(providedCustom) != 0 {
		CustomPath = providedCustom
	}
	if len(CustomPath) == 0 {
		CustomPath = path.Join(AppWorkPath, "custom")
	} else if !filepath.IsAbs(CustomPath) {
		CustomPath = path.Join(AppWorkPath, CustomPath)
	}

	if len(providedConf) != 0 {
		CustomConf = providedConf
	}
	if len(CustomConf) == 0 {
		CustomConf = path.Join(CustomPath, "conf/app.ini")
	} else if !filepath.IsAbs(CustomConf) {
		CustomConf = path.Join(CustomPath, CustomConf)
		log.Warn("Using 'custom' directory as relative origin for configuration file: '%s'", CustomConf)
	}
}

// NewContext initializes configuration context.
// NOTE: do not print any log except error.
func NewContext() {
	Cfg = ini.Empty()

	if WritePIDFile && len(PIDFile) > 0 {
		createPIDFile(PIDFile)
	}

	isFile, err := util.IsFile(CustomConf)
	if err != nil {
		log.Error("Unable to check if %s is a file. Error: %v", CustomConf, err)
	}
	if isFile {
		if err := Cfg.Append(CustomConf); err != nil {
			log.Fatal("Failed to load custom conf '%s': %v", CustomConf, err)
		}
	} else {
		log.Warn("Custom config '%s' not found, ignore this if you're running first time", CustomConf)
	}
	Cfg.NameMapper = ini.SnackCase

	homeDir, err := com.HomeDir()
	if err != nil {
		log.Fatal("Failed to get home directory: %v", err)
	}
	homeDir = strings.ReplaceAll(homeDir, "\\", "/")

	LogLevel = getLogLevel(Cfg.Section("log"), "LEVEL", log.INFO)
	StacktraceLogLevel = getStacktraceLogLevel(Cfg.Section("log"), "STACKTRACE_LEVEL", "None")
	LogRootPath = Cfg.Section("log").Key("ROOT_PATH").MustString(path.Join(AppWorkPath, "log"))
	forcePathSeparator(LogRootPath)
	RouterLogLevel = log.FromString(Cfg.Section("log").Key("ROUTER_LOG_LEVEL").MustString("Info"))

	sec := Cfg.Section("server")
	AppName = Cfg.Section("").Key("APP_NAME").MustString("Gitea: Git with a cup of tea")

	Protocol = HTTP
	switch sec.Key("PROTOCOL").String() {
	case "https":
		Protocol = HTTPS
		CertFile = sec.Key("CERT_FILE").String()
		KeyFile = sec.Key("KEY_FILE").String()
		if !filepath.IsAbs(CertFile) && len(CertFile) > 0 {
			CertFile = filepath.Join(CustomPath, CertFile)
		}
		if !filepath.IsAbs(KeyFile) && len(KeyFile) > 0 {
			KeyFile = filepath.Join(CustomPath, KeyFile)
		}
	case "fcgi":
		Protocol = FCGI
	case "fcgi+unix":
		Protocol = FCGIUnix
		UnixSocketPermissionRaw := sec.Key("UNIX_SOCKET_PERMISSION").MustString("666")
		UnixSocketPermissionParsed, err := strconv.ParseUint(UnixSocketPermissionRaw, 8, 32)
		if err != nil || UnixSocketPermissionParsed > 0777 {
			log.Fatal("Failed to parse unixSocketPermission: %s", UnixSocketPermissionRaw)
		}
		UnixSocketPermission = uint32(UnixSocketPermissionParsed)
	case "unix":
		Protocol = UnixSocket
		UnixSocketPermissionRaw := sec.Key("UNIX_SOCKET_PERMISSION").MustString("666")
		UnixSocketPermissionParsed, err := strconv.ParseUint(UnixSocketPermissionRaw, 8, 32)
		if err != nil || UnixSocketPermissionParsed > 0777 {
			log.Fatal("Failed to parse unixSocketPermission: %s", UnixSocketPermissionRaw)
		}
		UnixSocketPermission = uint32(UnixSocketPermissionParsed)
	}
	EnableLetsEncrypt = sec.Key("ENABLE_LETSENCRYPT").MustBool(false)
	LetsEncryptTOS = sec.Key("LETSENCRYPT_ACCEPTTOS").MustBool(false)
	if !LetsEncryptTOS && EnableLetsEncrypt {
		log.Warn("Failed to enable Let's Encrypt due to Let's Encrypt TOS not being accepted")
		EnableLetsEncrypt = false
	}
	LetsEncryptDirectory = sec.Key("LETSENCRYPT_DIRECTORY").MustString("https")
	LetsEncryptEmail = sec.Key("LETSENCRYPT_EMAIL").MustString("")
	Domain = sec.Key("DOMAIN").MustString("localhost")
	HTTPAddr = sec.Key("HTTP_ADDR").MustString("0.0.0.0")
	HTTPPort = sec.Key("HTTP_PORT").MustString("3000")
	GracefulRestartable = sec.Key("ALLOW_GRACEFUL_RESTARTS").MustBool(true)
	GracefulHammerTime = sec.Key("GRACEFUL_HAMMER_TIME").MustDuration(60 * time.Second)
	StartupTimeout = sec.Key("STARTUP_TIMEOUT").MustDuration(0 * time.Second)
	PerWriteTimeout = sec.Key("PER_WRITE_TIMEOUT").MustDuration(PerWriteTimeout)
	PerWritePerKbTimeout = sec.Key("PER_WRITE_PER_KB_TIMEOUT").MustDuration(PerWritePerKbTimeout)

	defaultAppURL := string(Protocol) + "://" + Domain
	if (Protocol == HTTP && HTTPPort != "80") || (Protocol == HTTPS && HTTPPort != "443") {
		defaultAppURL += ":" + HTTPPort
	}
	AppURL = sec.Key("ROOT_URL").MustString(defaultAppURL + "/")
	// This should be TrimRight to ensure that there is only a single '/' at the end of AppURL.
	AppURL = strings.TrimRight(AppURL, "/") + "/"

	// Check if has app suburl.
	appURL, err := url.Parse(AppURL)
	if err != nil {
		log.Fatal("Invalid ROOT_URL '%s': %s", AppURL, err)
	}
	// Suburl should start with '/' and end without '/', such as '/{subpath}'.
	// This value is empty if site does not have sub-url.
	AppSubURL = strings.TrimSuffix(appURL.Path, "/")
	StaticURLPrefix = strings.TrimSuffix(sec.Key("STATIC_URL_PREFIX").MustString(AppSubURL), "/")

	// Check if Domain differs from AppURL domain than update it to AppURL's domain
	urlHostname := appURL.Hostname()
	if urlHostname != Domain && net.ParseIP(urlHostname) == nil && urlHostname != "" {
		Domain = urlHostname
	}

	AbsoluteAssetURL = MakeAbsoluteAssetURL(AppURL, StaticURLPrefix)

	manifestBytes := MakeManifestData(AppName, AppURL, AbsoluteAssetURL)
	ManifestData = `application/json;base64,` + base64.StdEncoding.EncodeToString(manifestBytes)

	var defaultLocalURL string
	switch Protocol {
	case UnixSocket:
		defaultLocalURL = "http://unix/"
	case FCGI:
		defaultLocalURL = AppURL
	case FCGIUnix:
		defaultLocalURL = AppURL
	default:
		defaultLocalURL = string(Protocol) + "://"
		if HTTPAddr == "0.0.0.0" {
			defaultLocalURL += net.JoinHostPort("localhost", HTTPPort) + "/"
		} else {
			defaultLocalURL += net.JoinHostPort(HTTPAddr, HTTPPort) + "/"
		}
	}
	LocalURL = sec.Key("LOCAL_ROOT_URL").MustString(defaultLocalURL)
	RedirectOtherPort = sec.Key("REDIRECT_OTHER_PORT").MustBool(false)
	PortToRedirect = sec.Key("PORT_TO_REDIRECT").MustString("80")
	OfflineMode = sec.Key("OFFLINE_MODE").MustBool()
	DisableRouterLog = sec.Key("DISABLE_ROUTER_LOG").MustBool()
	if len(StaticRootPath) == 0 {
		StaticRootPath = AppWorkPath
	}
	StaticRootPath = sec.Key("STATIC_ROOT_PATH").MustString(StaticRootPath)
	StaticCacheTime = sec.Key("STATIC_CACHE_TIME").MustDuration(6 * time.Hour)
	AppDataPath = sec.Key("APP_DATA_PATH").MustString(path.Join(AppWorkPath, "data"))
	EnableGzip = sec.Key("ENABLE_GZIP").MustBool()
	EnablePprof = sec.Key("ENABLE_PPROF").MustBool(false)
	PprofDataPath = sec.Key("PPROF_DATA_PATH").MustString(path.Join(AppWorkPath, "data/tmp/pprof"))
	if !filepath.IsAbs(PprofDataPath) {
		PprofDataPath = filepath.Join(AppWorkPath, PprofDataPath)
	}

	switch sec.Key("LANDING_PAGE").MustString("home") {
	case "explore":
		LandingPageURL = LandingPageExplore
	case "organizations":
		LandingPageURL = LandingPageOrganizations
	case "login":
		LandingPageURL = LandingPageLogin
	default:
		LandingPageURL = LandingPageHome
	}

	if len(SSH.Domain) == 0 {
		SSH.Domain = Domain
	}
	SSH.RootPath = path.Join(homeDir, ".ssh")
	serverCiphers := sec.Key("SSH_SERVER_CIPHERS").Strings(",")
	if len(serverCiphers) > 0 {
		SSH.ServerCiphers = serverCiphers
	}
	serverKeyExchanges := sec.Key("SSH_SERVER_KEY_EXCHANGES").Strings(",")
	if len(serverKeyExchanges) > 0 {
		SSH.ServerKeyExchanges = serverKeyExchanges
	}
	serverMACs := sec.Key("SSH_SERVER_MACS").Strings(",")
	if len(serverMACs) > 0 {
		SSH.ServerMACs = serverMACs
	}
	SSH.KeyTestPath = os.TempDir()
	if err = Cfg.Section("server").MapTo(&SSH); err != nil {
		log.Fatal("Failed to map SSH settings: %v", err)
	}
	for i, key := range SSH.ServerHostKeys {
		if !filepath.IsAbs(key) {
			SSH.ServerHostKeys[i] = filepath.Join(AppDataPath, key)
		}
	}

	SSH.KeygenPath = sec.Key("SSH_KEYGEN_PATH").MustString("ssh-keygen")
	SSH.Port = sec.Key("SSH_PORT").MustInt(22)
	SSH.ListenPort = sec.Key("SSH_LISTEN_PORT").MustInt(SSH.Port)

	// When disable SSH, start builtin server value is ignored.
	if SSH.Disabled {
		SSH.StartBuiltinServer = false
	}

	trustedUserCaKeys := sec.Key("SSH_TRUSTED_USER_CA_KEYS").Strings(",")
	for _, caKey := range trustedUserCaKeys {
		pubKey, _, _, _, err := gossh.ParseAuthorizedKey([]byte(caKey))
		if err != nil {
			log.Fatal("Failed to parse TrustedUserCaKeys: %s %v", caKey, err)
		}

		SSH.TrustedUserCAKeysParsed = append(SSH.TrustedUserCAKeysParsed, pubKey)
	}
	if len(trustedUserCaKeys) > 0 {
		// Set the default as email,username otherwise we can leave it empty
		sec.Key("SSH_AUTHORIZED_PRINCIPALS_ALLOW").MustString("username,email")
	} else {
		sec.Key("SSH_AUTHORIZED_PRINCIPALS_ALLOW").MustString("off")
	}

	SSH.AuthorizedPrincipalsAllow, SSH.AuthorizedPrincipalsEnabled = parseAuthorizedPrincipalsAllow(sec.Key("SSH_AUTHORIZED_PRINCIPALS_ALLOW").Strings(","))

	if !SSH.Disabled && !SSH.StartBuiltinServer {
		if err := os.MkdirAll(SSH.RootPath, 0700); err != nil {
			log.Fatal("Failed to create '%s': %v", SSH.RootPath, err)
		} else if err = os.MkdirAll(SSH.KeyTestPath, 0644); err != nil {
			log.Fatal("Failed to create '%s': %v", SSH.KeyTestPath, err)
		}

		if len(trustedUserCaKeys) > 0 && SSH.AuthorizedPrincipalsEnabled {
			fname := sec.Key("SSH_TRUSTED_USER_CA_KEYS_FILENAME").MustString(filepath.Join(SSH.RootPath, "gitea-trusted-user-ca-keys.pem"))
			if err := ioutil.WriteFile(fname,
				[]byte(strings.Join(trustedUserCaKeys, "\n")), 0600); err != nil {
				log.Fatal("Failed to create '%s': %v", fname, err)
			}
		}
	}

	SSH.MinimumKeySizeCheck = sec.Key("MINIMUM_KEY_SIZE_CHECK").MustBool(SSH.MinimumKeySizeCheck)
	minimumKeySizes := Cfg.Section("ssh.minimum_key_sizes").Keys()
	for _, key := range minimumKeySizes {
		if key.MustInt() != -1 {
			SSH.MinimumKeySizes[strings.ToLower(key.Name())] = key.MustInt()
		} else {
			delete(SSH.MinimumKeySizes, strings.ToLower(key.Name()))
		}
	}

	SSH.AuthorizedKeysBackup = sec.Key("SSH_AUTHORIZED_KEYS_BACKUP").MustBool(true)
	SSH.CreateAuthorizedKeysFile = sec.Key("SSH_CREATE_AUTHORIZED_KEYS_FILE").MustBool(true)

	SSH.AuthorizedPrincipalsBackup = false
	SSH.CreateAuthorizedPrincipalsFile = false
	if SSH.AuthorizedPrincipalsEnabled {
		SSH.AuthorizedPrincipalsBackup = sec.Key("SSH_AUTHORIZED_PRINCIPALS_BACKUP").MustBool(true)
		SSH.CreateAuthorizedPrincipalsFile = sec.Key("SSH_CREATE_AUTHORIZED_PRINCIPALS_FILE").MustBool(true)
	}

	SSH.ExposeAnonymous = sec.Key("SSH_EXPOSE_ANONYMOUS").MustBool(false)
	SSH.AuthorizedKeysCommandTemplate = sec.Key("SSH_AUTHORIZED_KEYS_COMMAND_TEMPLATE").MustString(SSH.AuthorizedKeysCommandTemplate)

	SSH.AuthorizedKeysCommandTemplateTemplate = template.Must(template.New("").Parse(SSH.AuthorizedKeysCommandTemplate))

	SSH.PerWriteTimeout = sec.Key("SSH_PER_WRITE_TIMEOUT").MustDuration(PerWriteTimeout)
	SSH.PerWritePerKbTimeout = sec.Key("SSH_PER_WRITE_PER_KB_TIMEOUT").MustDuration(PerWritePerKbTimeout)

	if err = Cfg.Section("oauth2").MapTo(&OAuth2); err != nil {
		log.Fatal("Failed to OAuth2 settings: %v", err)
		return
	}

	if !filepath.IsAbs(OAuth2.JWTSigningPrivateKeyFile) {
		OAuth2.JWTSigningPrivateKeyFile = filepath.Join(AppDataPath, OAuth2.JWTSigningPrivateKeyFile)
	}

	sec = Cfg.Section("admin")
	Admin.DefaultEmailNotification = sec.Key("DEFAULT_EMAIL_NOTIFICATIONS").MustString("enabled")

	sec = Cfg.Section("security")
	InstallLock = sec.Key("INSTALL_LOCK").MustBool(false)
	SecretKey = sec.Key("SECRET_KEY").MustString("!#@FDEWREWR&*(")
	LogInRememberDays = sec.Key("LOGIN_REMEMBER_DAYS").MustInt(7)
	CookieUserName = sec.Key("COOKIE_USERNAME").MustString("gitea_awesome")
	CookieRememberName = sec.Key("COOKIE_REMEMBER_NAME").MustString("gitea_incredible")

	ReverseProxyAuthUser = sec.Key("REVERSE_PROXY_AUTHENTICATION_USER").MustString("X-WEBAUTH-USER")
	ReverseProxyAuthEmail = sec.Key("REVERSE_PROXY_AUTHENTICATION_EMAIL").MustString("X-WEBAUTH-EMAIL")

	ReverseProxyLimit = sec.Key("REVERSE_PROXY_LIMIT").MustInt(1)
	ReverseProxyTrustedProxies = sec.Key("REVERSE_PROXY_TRUSTED_PROXIES").Strings(",")
	if len(ReverseProxyTrustedProxies) == 0 {
		ReverseProxyTrustedProxies = []string{"127.0.0.0/8", "::1/128"}
	}

	MinPasswordLength = sec.Key("MIN_PASSWORD_LENGTH").MustInt(6)
	ImportLocalPaths = sec.Key("IMPORT_LOCAL_PATHS").MustBool(false)
	DisableGitHooks = sec.Key("DISABLE_GIT_HOOKS").MustBool(true)
	DisableWebhooks = sec.Key("DISABLE_WEBHOOKS").MustBool(false)
	OnlyAllowPushIfGiteaEnvironmentSet = sec.Key("ONLY_ALLOW_PUSH_IF_GITEA_ENVIRONMENT_SET").MustBool(true)
	PasswordHashAlgo = sec.Key("PASSWORD_HASH_ALGO").MustString("pbkdf2")
	CSRFCookieHTTPOnly = sec.Key("CSRF_COOKIE_HTTP_ONLY").MustBool(true)
	PasswordCheckPwn = sec.Key("PASSWORD_CHECK_PWN").MustBool(false)

	InternalToken = loadInternalToken(sec)

	cfgdata := sec.Key("PASSWORD_COMPLEXITY").Strings(",")
	if len(cfgdata) == 0 {
		cfgdata = []string{"off"}
	}
	PasswordComplexity = make([]string, 0, len(cfgdata))
	for _, name := range cfgdata {
		name := strings.ToLower(strings.Trim(name, `"`))
		if name != "" {
			PasswordComplexity = append(PasswordComplexity, name)
		}
	}

	newAttachmentService()
	newLFSService()

	timeFormatKey := Cfg.Section("time").Key("FORMAT").MustString("")
	if timeFormatKey != "" {
		TimeFormat = map[string]string{
			"ANSIC":       time.ANSIC,
			"UnixDate":    time.UnixDate,
			"RubyDate":    time.RubyDate,
			"RFC822":      time.RFC822,
			"RFC822Z":     time.RFC822Z,
			"RFC850":      time.RFC850,
			"RFC1123":     time.RFC1123,
			"RFC1123Z":    time.RFC1123Z,
			"RFC3339":     time.RFC3339,
			"RFC3339Nano": time.RFC3339Nano,
			"Kitchen":     time.Kitchen,
			"Stamp":       time.Stamp,
			"StampMilli":  time.StampMilli,
			"StampMicro":  time.StampMicro,
			"StampNano":   time.StampNano,
		}[timeFormatKey]
		// When the TimeFormatKey does not exist in the previous map e.g.'2006-01-02 15:04:05'
		if len(TimeFormat) == 0 {
			TimeFormat = timeFormatKey
			TestTimeFormat, _ := time.Parse(TimeFormat, TimeFormat)
			if TestTimeFormat.Format(time.RFC3339) != "2006-01-02T15:04:05Z" {
				log.Warn("Provided TimeFormat: %s does not create a fully specified date and time.", TimeFormat)
				log.Warn("In order to display dates and times correctly please check your time format has 2006, 01, 02, 15, 04 and 05")
			}
			log.Trace("Custom TimeFormat: %s", TimeFormat)
		}
	}

	zone := Cfg.Section("time").Key("DEFAULT_UI_LOCATION").String()
	if zone != "" {
		DefaultUILocation, err = time.LoadLocation(zone)
		if err != nil {
			log.Fatal("Load time zone failed: %v", err)
		} else {
			log.Info("Default UI Location is %v", zone)
		}
	}
	if DefaultUILocation == nil {
		DefaultUILocation = time.Local
	}

	RunUser = Cfg.Section("").Key("RUN_USER").MustString(user.CurrentUsername())
	RunMode = Cfg.Section("").Key("RUN_MODE").MustString("prod")
	// Does not check run user when the install lock is off.
	if InstallLock {
		currentUser, match := IsRunUserMatchCurrentUser(RunUser)
		if !match {
			log.Fatal("Expect user '%s' but current user is: %s", RunUser, currentUser)
		}
	}

	SSH.BuiltinServerUser = Cfg.Section("server").Key("BUILTIN_SSH_SERVER_USER").MustString(RunUser)

	newRepository()

	newPictureService()

	if err = Cfg.Section("ui").MapTo(&UI); err != nil {
		log.Fatal("Failed to map UI settings: %v", err)
	} else if err = Cfg.Section("markdown").MapTo(&Markdown); err != nil {
		log.Fatal("Failed to map Markdown settings: %v", err)
	} else if err = Cfg.Section("admin").MapTo(&Admin); err != nil {
		log.Fatal("Fail to map Admin settings: %v", err)
	} else if err = Cfg.Section("api").MapTo(&API); err != nil {
		log.Fatal("Failed to map API settings: %v", err)
	} else if err = Cfg.Section("metrics").MapTo(&Metrics); err != nil {
		log.Fatal("Failed to map Metrics settings: %v", err)
	}

	u := *appURL
	u.Path = path.Join(u.Path, "api", "swagger")
	API.SwaggerURL = u.String()

	newGit()

	sec = Cfg.Section("mirror")
	Mirror.MinInterval = sec.Key("MIN_INTERVAL").MustDuration(10 * time.Minute)
	Mirror.DefaultInterval = sec.Key("DEFAULT_INTERVAL").MustDuration(8 * time.Hour)
	if Mirror.MinInterval.Minutes() < 1 {
		log.Warn("Mirror.MinInterval is too low")
		Mirror.MinInterval = 1 * time.Minute
	}
	if Mirror.DefaultInterval < Mirror.MinInterval {
		log.Warn("Mirror.DefaultInterval is less than Mirror.MinInterval")
		Mirror.DefaultInterval = time.Hour * 8
	}

	Langs = Cfg.Section("i18n").Key("LANGS").Strings(",")
	if len(Langs) == 0 {
		Langs = []string{
			"en-US", "zh-CN", "zh-HK", "zh-TW", "de-DE", "fr-FR", "nl-NL", "lv-LV",
			"ru-RU", "uk-UA", "ja-JP", "es-ES", "pt-BR", "pt-PT", "pl-PL", "bg-BG",
			"it-IT", "fi-FI", "tr-TR", "cs-CZ", "sr-SP", "sv-SE", "ko-KR"}
	}
	Names = Cfg.Section("i18n").Key("NAMES").Strings(",")
	if len(Names) == 0 {
		Names = []string{"English", "简体中文", "繁體中文(香港)", "繁體中文(台灣)", "Deutsch",
			"français", "Nederlands", "latviešu", "русский", "Українська", "日本語",
			"español", "português do Brasil", "Português de Portugal", "polski", "български",
			"italiano", "suomi", "Türkçe", "čeština", "српски", "svenska", "한국어"}
	}

	ShowFooterBranding = Cfg.Section("other").Key("SHOW_FOOTER_BRANDING").MustBool(false)
	ShowFooterVersion = Cfg.Section("other").Key("SHOW_FOOTER_VERSION").MustBool(true)
	ShowFooterTemplateLoadTime = Cfg.Section("other").Key("SHOW_FOOTER_TEMPLATE_LOAD_TIME").MustBool(true)

	UI.ShowUserEmail = Cfg.Section("ui").Key("SHOW_USER_EMAIL").MustBool(true)
	UI.DefaultShowFullName = Cfg.Section("ui").Key("DEFAULT_SHOW_FULL_NAME").MustBool(false)
	UI.SearchRepoDescription = Cfg.Section("ui").Key("SEARCH_REPO_DESCRIPTION").MustBool(true)
	UI.UseServiceWorker = Cfg.Section("ui").Key("USE_SERVICE_WORKER").MustBool(true)

	HasRobotsTxt, err = util.IsFile(path.Join(CustomPath, "robots.txt"))
	if err != nil {
		log.Error("Unable to check if %s is a file. Error: %v", path.Join(CustomPath, "robots.txt"), err)
	}

	newMarkup()

	sec = Cfg.Section("U2F")
	U2F.TrustedFacets, _ = shellquote.Split(sec.Key("TRUSTED_FACETS").MustString(strings.TrimSuffix(AppURL, AppSubURL+"/")))
	U2F.AppID = sec.Key("APP_ID").MustString(strings.TrimSuffix(AppURL, "/"))

	UI.ReactionsMap = make(map[string]bool)
	for _, reaction := range UI.Reactions {
		UI.ReactionsMap[reaction] = true
	}
	UI.CustomEmojisMap = make(map[string]string)
	for _, emoji := range UI.CustomEmojis {
		UI.CustomEmojisMap[emoji] = ":" + emoji + ":"
	}
}

func parseAuthorizedPrincipalsAllow(values []string) ([]string, bool) {
	anything := false
	email := false
	username := false
	for _, value := range values {
		v := strings.ToLower(strings.TrimSpace(value))
		switch v {
		case "off":
			return []string{"off"}, false
		case "email":
			email = true
		case "username":
			username = true
		case "anything":
			anything = true
		}
	}
	if anything {
		return []string{"anything"}, true
	}

	authorizedPrincipalsAllow := []string{}
	if username {
		authorizedPrincipalsAllow = append(authorizedPrincipalsAllow, "username")
	}
	if email {
		authorizedPrincipalsAllow = append(authorizedPrincipalsAllow, "email")
	}

	return authorizedPrincipalsAllow, true
}

func loadInternalToken(sec *ini.Section) string {
	uri := sec.Key("INTERNAL_TOKEN_URI").String()
	if len(uri) == 0 {
		return loadOrGenerateInternalToken(sec)
	}
	tempURI, err := url.Parse(uri)
	if err != nil {
		log.Fatal("Failed to parse INTERNAL_TOKEN_URI (%s): %v", uri, err)
	}
	switch tempURI.Scheme {
	case "file":
		fp, err := os.OpenFile(tempURI.RequestURI(), os.O_RDWR, 0600)
		if err != nil {
			log.Fatal("Failed to open InternalTokenURI (%s): %v", uri, err)
		}
		defer fp.Close()

		buf, err := ioutil.ReadAll(fp)
		if err != nil {
			log.Fatal("Failed to read InternalTokenURI (%s): %v", uri, err)
		}
		// No token in the file, generate one and store it.
		if len(buf) == 0 {
			token, err := generate.NewInternalToken()
			if err != nil {
				log.Fatal("Error generate internal token: %v", err)
			}
			if _, err := io.WriteString(fp, token); err != nil {
				log.Fatal("Error writing to InternalTokenURI (%s): %v", uri, err)
			}
			return token
		}

		return strings.TrimSpace(string(buf))
	default:
		log.Fatal("Unsupported URI-Scheme %q (INTERNAL_TOKEN_URI = %q)", tempURI.Scheme, uri)
	}
	return ""
}

func loadOrGenerateInternalToken(sec *ini.Section) string {
	var err error
	token := sec.Key("INTERNAL_TOKEN").String()
	if len(token) == 0 {
		token, err = generate.NewInternalToken()
		if err != nil {
			log.Fatal("Error generate internal token: %v", err)
		}

		// Save secret
		CreateOrAppendToCustomConf(func(cfg *ini.File) {
			cfg.Section("security").Key("INTERNAL_TOKEN").SetValue(token)
		})
	}
	return token
}

// MakeAbsoluteAssetURL returns the absolute asset url prefix without a trailing slash
func MakeAbsoluteAssetURL(appURL string, staticURLPrefix string) string {
	parsedPrefix, err := url.Parse(strings.TrimSuffix(staticURLPrefix, "/"))
	if err != nil {
		log.Fatal("Unable to parse STATIC_URL_PREFIX: %v", err)
	}

	if err == nil && parsedPrefix.Hostname() == "" {
		if staticURLPrefix == "" {
			return strings.TrimSuffix(appURL, "/")
		}

		// StaticURLPrefix is just a path
		return util.URLJoin(appURL, strings.TrimSuffix(staticURLPrefix, "/"))
	}

	return strings.TrimSuffix(staticURLPrefix, "/")
}

// MakeManifestData generates web app manifest JSON
func MakeManifestData(appName string, appURL string, absoluteAssetURL string) []byte {
	type manifestIcon struct {
		Src   string `json:"src"`
		Type  string `json:"type"`
		Sizes string `json:"sizes"`
	}

	type manifestJSON struct {
		Name      string         `json:"name"`
		ShortName string         `json:"short_name"`
		StartURL  string         `json:"start_url"`
		Icons     []manifestIcon `json:"icons"`
	}

	json := jsoniter.ConfigCompatibleWithStandardLibrary
	bytes, err := json.Marshal(&manifestJSON{
		Name:      appName,
		ShortName: appName,
		StartURL:  appURL,
		Icons: []manifestIcon{
			{
				Src:   absoluteAssetURL + "/assets/img/logo.png",
				Type:  "image/png",
				Sizes: "512x512",
			},
			{
				Src:   absoluteAssetURL + "/assets/img/logo.svg",
				Type:  "image/svg+xml",
				Sizes: "512x512",
			},
		},
	})

	if err != nil {
		log.Error("unable to marshal manifest JSON. Error: %v", err)
		return make([]byte, 0)
	}

	return bytes
}

// CreateOrAppendToCustomConf creates or updates the custom config.
// Use the callback to set individual values.
func CreateOrAppendToCustomConf(callback func(cfg *ini.File)) {
	cfg := ini.Empty()
	isFile, err := util.IsFile(CustomConf)
	if err != nil {
		log.Error("Unable to check if %s is a file. Error: %v", CustomConf, err)
	}
	if isFile {
		if err := cfg.Append(CustomConf); err != nil {
			log.Error("failed to load custom conf %s: %v", CustomConf, err)
			return
		}
	}

	callback(cfg)

	if err := os.MkdirAll(filepath.Dir(CustomConf), os.ModePerm); err != nil {
		log.Fatal("failed to create '%s': %v", CustomConf, err)
		return
	}
	if err := cfg.SaveTo(CustomConf); err != nil {
		log.Fatal("error saving to custom config: %v", err)
	}

	// Change permissions to be more restrictive
	fi, err := os.Stat(CustomConf)
	if err != nil {
		log.Error("Failed to determine current conf file permissions: %v", err)
		return
	}

	if fi.Mode().Perm() > 0o600 {
		if err = os.Chmod(CustomConf, 0o600); err != nil {
			log.Warn("Failed changing conf file permissions to -rw-------. Consider changing them manually.")
		}
	}
}

// NewServices initializes the services
func NewServices() {
	InitDBConfig()
	newService()
	newOAuth2Client()
	NewLogServices(false)
	newCacheService()
	newSessionService()
	newCORSService()
	newMailService()
	newRegisterMailService()
	newNotifyMailService()
	newWebhookService()
	newMigrationsService()
	newIndexerService()
	newTaskService()
	NewQueueService()
	newProject()
	newMimeTypeMap()
}

// NewServicesForInstall initializes the services for install
func NewServicesForInstall() {
	newService()
	newMailService()
}