-
Notifications
You must be signed in to change notification settings - Fork 276
/
options.go
1450 lines (1268 loc) · 51.5 KB
/
options.go
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
package config
import (
"bytes"
"context"
"crypto/tls"
"encoding/base64"
"errors"
"fmt"
"net/url"
"os"
"path/filepath"
"reflect"
"strings"
"time"
envoy_http_connection_manager "github.com/envoyproxy/go-control-plane/envoy/extensions/filters/network/http_connection_manager/v3"
"github.com/mitchellh/mapstructure"
"github.com/rs/zerolog"
"github.com/spf13/viper"
"github.com/volatiletech/null/v9"
"google.golang.org/protobuf/types/known/durationpb"
"github.com/pomerium/pomerium/internal/atomicutil"
"github.com/pomerium/pomerium/internal/hashutil"
"github.com/pomerium/pomerium/internal/httputil"
"github.com/pomerium/pomerium/internal/identity/oauth"
"github.com/pomerium/pomerium/internal/log"
"github.com/pomerium/pomerium/internal/sets"
"github.com/pomerium/pomerium/internal/telemetry"
"github.com/pomerium/pomerium/internal/telemetry/metrics"
"github.com/pomerium/pomerium/internal/urlutil"
"github.com/pomerium/pomerium/pkg/cryptutil"
"github.com/pomerium/pomerium/pkg/grpc/config"
"github.com/pomerium/pomerium/pkg/grpc/crypt"
"github.com/pomerium/pomerium/pkg/hpke"
)
// DisableHeaderKey is the key used to check whether to disable setting header
const DisableHeaderKey = "disable"
// DefaultAlternativeAddr is the address used is two services are competing over
// the same listener. Typically this is invisible to the end user (e.g. localhost)
// gRPC server, or is used for healthchecks (authorize only service)
const DefaultAlternativeAddr = ":5443"
// The randomSharedKey is used if no shared key is supplied in all-in-one mode.
var randomSharedKey = cryptutil.NewBase64Key()
// Options are the global environmental flags used to set up pomerium's services.
// Use NewXXXOptions() methods for a safely initialized data structure.
type Options struct {
// InstallationID is used to indicate a unique installation of pomerium. Useful for telemetry.
InstallationID string `mapstructure:"installation_id" yaml:"installation_id,omitempty"`
// Debug outputs human-readable logs to Stdout.
Debug bool `mapstructure:"pomerium_debug" yaml:"pomerium_debug,omitempty"`
// LogLevel sets the global override for log level. All Loggers will use at least this value.
// Possible options are "info","warn","debug" and "error". Defaults to "info".
LogLevel string `mapstructure:"log_level" yaml:"log_level,omitempty"`
// ProxyLogLevel sets the log level for the proxy service.
// Possible options are "info","warn", and "error". Defaults to the value of `LogLevel`.
ProxyLogLevel string `mapstructure:"proxy_log_level" yaml:"proxy_log_level,omitempty"`
// SharedKey is the shared secret authorization key used to mutually authenticate
// requests between services.
SharedKey string `mapstructure:"shared_secret" yaml:"shared_secret,omitempty"`
SharedSecretFile string `mapstructure:"shared_secret_file" yaml:"shared_secret_file,omitempty"`
// Services is a list enabled service mode. If none are selected, "all" is used.
// Available options are : "all", "authenticate", "proxy".
Services string `mapstructure:"services" yaml:"services,omitempty"`
// Addr specifies the host and port on which the server should serve
// HTTPS requests. If empty, ":443" (localhost:443) is used.
Addr string `mapstructure:"address" yaml:"address,omitempty"`
// InsecureServer when enabled disables all transport security.
// In this mode, Pomerium is susceptible to man-in-the-middle attacks.
// This should be used only for testing.
InsecureServer bool `mapstructure:"insecure_server" yaml:"insecure_server,omitempty"`
// DNSLookupFamily is the DNS IP address resolution policy.
// If this setting is not specified, the value defaults to V4_PREFERRED.
DNSLookupFamily string `mapstructure:"dns_lookup_family" yaml:"dns_lookup_family,omitempty"`
CertificateFiles []certificateFilePair `mapstructure:"certificates" yaml:"certificates,omitempty"`
// Cert and Key is the x509 certificate used to create the HTTPS server.
Cert string `mapstructure:"certificate" yaml:"certificate,omitempty"`
Key string `mapstructure:"certificate_key" yaml:"certificate_key,omitempty"`
// CertFile and KeyFile is the x509 certificate used to hydrate TLSCertificate
CertFile string `mapstructure:"certificate_file" yaml:"certificate_file,omitempty"`
KeyFile string `mapstructure:"certificate_key_file" yaml:"certificate_key_file,omitempty"`
// HttpRedirectAddr, if set, specifies the host and port to run the HTTP
// to HTTPS redirect server on. If empty, no redirect server is started.
HTTPRedirectAddr string `mapstructure:"http_redirect_addr" yaml:"http_redirect_addr,omitempty"`
// Timeout settings : https://github.com/pomerium/pomerium/issues/40
ReadTimeout time.Duration `mapstructure:"timeout_read" yaml:"timeout_read,omitempty"`
WriteTimeout time.Duration `mapstructure:"timeout_write" yaml:"timeout_write,omitempty"`
IdleTimeout time.Duration `mapstructure:"timeout_idle" yaml:"timeout_idle,omitempty"`
// Policies define per-route configuration and access control policies.
Policies []Policy `mapstructure:"policy"`
PolicyFile string `mapstructure:"policy_file" yaml:"policy_file,omitempty"`
Routes []Policy `mapstructure:"routes"`
// AdditionalPolicies are any additional policies added to the options.
AdditionalPolicies []Policy `yaml:"-"`
// AuthenticateURL represents the externally accessible http endpoints
// used for authentication requests and callbacks
AuthenticateURLString string `mapstructure:"authenticate_service_url" yaml:"authenticate_service_url,omitempty"`
AuthenticateInternalURLString string `mapstructure:"authenticate_internal_service_url" yaml:"authenticate_internal_service_url,omitempty"`
// SignOutRedirectURL represents the url that user will be redirected to after signing out.
SignOutRedirectURLString string `mapstructure:"signout_redirect_url" yaml:"signout_redirect_url,omitempty"`
// AuthenticateCallbackPath is the path to the HTTP endpoint that will
// receive the response from your identity provider. The value must exactly
// match one of the authorized redirect URIs for the OAuth 2.0 client.
// Defaults to: `/oauth2/callback`
AuthenticateCallbackPath string `mapstructure:"authenticate_callback_path" yaml:"authenticate_callback_path,omitempty"`
// Session/Cookie management
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie
CookieName string `mapstructure:"cookie_name" yaml:"cookie_name,omitempty"`
CookieSecret string `mapstructure:"cookie_secret" yaml:"cookie_secret,omitempty"`
CookieSecretFile string `mapstructure:"cookie_secret_file" yaml:"cookie_secret_file,omitempty"`
CookieDomain string `mapstructure:"cookie_domain" yaml:"cookie_domain,omitempty"`
CookieSecure bool `mapstructure:"cookie_secure" yaml:"cookie_secure,omitempty"`
CookieHTTPOnly bool `mapstructure:"cookie_http_only" yaml:"cookie_http_only,omitempty"`
CookieExpire time.Duration `mapstructure:"cookie_expire" yaml:"cookie_expire,omitempty"`
// Identity provider configuration variables as specified by RFC6749
// https://openid.net/specs/openid-connect-basic-1_0.html#RFC6749
ClientID string `mapstructure:"idp_client_id" yaml:"idp_client_id,omitempty"`
ClientSecret string `mapstructure:"idp_client_secret" yaml:"idp_client_secret,omitempty"`
ClientSecretFile string `mapstructure:"idp_client_secret_file" yaml:"idp_client_secret_file,omitempty"`
Provider string `mapstructure:"idp_provider" yaml:"idp_provider,omitempty"`
ProviderURL string `mapstructure:"idp_provider_url" yaml:"idp_provider_url,omitempty"`
Scopes []string `mapstructure:"idp_scopes" yaml:"idp_scopes,omitempty"`
// RequestParams are custom request params added to the signin request as
// part of an Oauth2 code flow.
//
// https://www.iana.org/assignments/oauth-parameters/oauth-parameters.xhtml
// https://openid.net/specs/openid-connect-basic-1_0.html#RequestParameters
RequestParams map[string]string `mapstructure:"idp_request_params" yaml:"idp_request_params,omitempty"`
// AuthorizeURLString is the routable destination of the authorize service's
// gRPC endpoint. NOTE: As many load balancers do not support
// externally routed gRPC so this may be an internal location.
AuthorizeURLString string `mapstructure:"authorize_service_url" yaml:"authorize_service_url,omitempty"`
AuthorizeURLStrings []string `mapstructure:"authorize_service_urls" yaml:"authorize_service_urls,omitempty"`
AuthorizeInternalURLString string `mapstructure:"authorize_internal_service_url" yaml:"authorize_internal_service_url,omitempty"`
// Settings to enable custom behind-the-ingress service communication
OverrideCertificateName string `mapstructure:"override_certificate_name" yaml:"override_certificate_name,omitempty"`
CA string `mapstructure:"certificate_authority" yaml:"certificate_authority,omitempty"`
CAFile string `mapstructure:"certificate_authority_file" yaml:"certificate_authority_file,omitempty"`
// DeriveInternalDomainCert is an option that would derive certificate authority
// and domain certificates from the shared key and use them for internal communication
DeriveInternalDomainCert *string `mapstructure:"tls_derive" yaml:"tls_derive,omitempty"`
// SigningKey is the private key used to add a JWT-signature to upstream requests.
// https://www.pomerium.com/docs/topics/getting-users-identity.html
SigningKey string `mapstructure:"signing_key" yaml:"signing_key,omitempty"`
SigningKeyFile string `mapstructure:"signing_key_file" yaml:"signing_key_file,omitempty"`
HeadersEnv string `yaml:",omitempty"`
// SetResponseHeaders to set on all proxied requests. Add a 'disable' key map to turn off.
SetResponseHeaders map[string]string `yaml:",omitempty"`
// List of JWT claims to insert as x-pomerium-claim-* headers on proxied requests
JWTClaimsHeaders JWTClaimHeaders `mapstructure:"jwt_claims_headers" yaml:"jwt_claims_headers,omitempty"`
DefaultUpstreamTimeout time.Duration `mapstructure:"default_upstream_timeout" yaml:"default_upstream_timeout,omitempty"`
// Address/Port to bind to for prometheus metrics
MetricsAddr string `mapstructure:"metrics_address" yaml:"metrics_address,omitempty"`
// - require basic auth for prometheus metrics, base64 encoded user:pass string
MetricsBasicAuth string `mapstructure:"metrics_basic_auth" yaml:"metrics_basic_auth,omitempty"`
// - TLS options
MetricsCertificate string `mapstructure:"metrics_certificate" yaml:"metrics_certificate,omitempty"`
MetricsCertificateKey string `mapstructure:"metrics_certificate_key" yaml:"metrics_certificate_key,omitempty"`
MetricsCertificateFile string `mapstructure:"metrics_certificate_file" yaml:"metrics_certificate_file,omitempty"`
MetricsCertificateKeyFile string `mapstructure:"metrics_certificate_key_file" yaml:"metrics_certificate_key_file,omitempty"`
MetricsClientCA string `mapstructure:"metrics_client_ca" yaml:"metrics_client_ca,omitempty"`
MetricsClientCAFile string `mapstructure:"metrics_client_ca_file" yaml:"metrics_client_ca_file,omitempty"`
// Tracing shared settings
TracingProvider string `mapstructure:"tracing_provider" yaml:"tracing_provider,omitempty"`
TracingSampleRate float64 `mapstructure:"tracing_sample_rate" yaml:"tracing_sample_rate,omitempty"`
// Datadog tracing address
TracingDatadogAddress string `mapstructure:"tracing_datadog_address" yaml:"tracing_datadog_address,omitempty"`
// Jaeger
//
// CollectorEndpoint is the full url to the Jaeger HTTP Thrift collector.
// For example, http://localhost:14268/api/traces
TracingJaegerCollectorEndpoint string `mapstructure:"tracing_jaeger_collector_endpoint" yaml:"tracing_jaeger_collector_endpoint,omitempty"`
// AgentEndpoint instructs exporter to send spans to jaeger-agent at this address.
// For example, localhost:6831.
TracingJaegerAgentEndpoint string `mapstructure:"tracing_jaeger_agent_endpoint" yaml:"tracing_jaeger_agent_endpoint,omitempty"`
// Zipkin
//
// ZipkinEndpoint configures the zipkin collector URI
// Example: http://zipkin:9411/api/v2/spans
ZipkinEndpoint string `mapstructure:"tracing_zipkin_endpoint" yaml:"tracing_zipkin_endpoint"`
// GRPC Service Settings
// GRPCAddr specifies the host and port on which the server should serve
// gRPC requests. If running in all-in-one mode, ":5443" (localhost:5443) is used.
GRPCAddr string `mapstructure:"grpc_address" yaml:"grpc_address,omitempty"`
// GRPCInsecure disables transport security.
// If running in all-in-one mode, defaults to true.
GRPCInsecure *bool `mapstructure:"grpc_insecure" yaml:"grpc_insecure,omitempty"`
GRPCClientTimeout time.Duration `mapstructure:"grpc_client_timeout" yaml:"grpc_client_timeout,omitempty"`
GRPCClientDNSRoundRobin bool `mapstructure:"grpc_client_dns_roundrobin" yaml:"grpc_client_dns_roundrobin,omitempty"`
// DataBrokerURLString is the routable destination of the databroker service's gRPC endpoint.
DataBrokerURLString string `mapstructure:"databroker_service_url" yaml:"databroker_service_url,omitempty"`
DataBrokerURLStrings []string `mapstructure:"databroker_service_urls" yaml:"databroker_service_urls,omitempty"`
DataBrokerInternalURLString string `mapstructure:"databroker_internal_service_url" yaml:"databroker_internal_service_url,omitempty"`
// DataBrokerStorageType is the storage backend type that databroker will use.
// Supported type: memory, redis
DataBrokerStorageType string `mapstructure:"databroker_storage_type" yaml:"databroker_storage_type,omitempty"`
// DataBrokerStorageConnectionString is the data source name for storage backend.
DataBrokerStorageConnectionString string `mapstructure:"databroker_storage_connection_string" yaml:"databroker_storage_connection_string,omitempty"`
DataBrokerStorageCertFile string `mapstructure:"databroker_storage_cert_file" yaml:"databroker_storage_cert_file,omitempty"`
DataBrokerStorageCertKeyFile string `mapstructure:"databroker_storage_key_file" yaml:"databroker_storage_key_file,omitempty"`
DataBrokerStorageCAFile string `mapstructure:"databroker_storage_ca_file" yaml:"databroker_storage_ca_file,omitempty"`
DataBrokerStorageCertSkipVerify bool `mapstructure:"databroker_storage_tls_skip_verify" yaml:"databroker_storage_tls_skip_verify,omitempty"`
// ClientCA is the base64-encoded certificate authority to validate client mTLS certificates against.
ClientCA string `mapstructure:"client_ca" yaml:"client_ca,omitempty"`
// ClientCAFile points to a file that contains the certificate authority to validate client mTLS certificates against.
ClientCAFile string `mapstructure:"client_ca_file" yaml:"client_ca_file,omitempty"`
// ClientCRL is the base64-encoded certificate revocation list for client mTLS certificates.
ClientCRL string `mapstructure:"client_crl" yaml:"client_crl,omitempty"`
// ClientCRLFile points to a file that contains the certificate revocation list for client mTLS certificates.
ClientCRLFile string `mapstructure:"client_crl_file" yaml:"client_crl_file,omitempty"`
// GoogleCloudServerlessAuthenticationServiceAccount is the service account to use for GCP serverless authentication.
// If unset, the GCP metadata server will be used to query for identity tokens.
GoogleCloudServerlessAuthenticationServiceAccount string `mapstructure:"google_cloud_serverless_authentication_service_account" yaml:"google_cloud_serverless_authentication_service_account,omitempty"` //nolint
// UseProxyProtocol configures the HTTP listener to require the HAProxy proxy protocol (either v1 or v2) on incoming requests.
UseProxyProtocol bool `mapstructure:"use_proxy_protocol" yaml:"use_proxy_protocol,omitempty" json:"use_proxy_protocol,omitempty"`
viper *viper.Viper
AutocertOptions `mapstructure:",squash" yaml:",inline"`
// SkipXffAppend instructs proxy not to append its IP address to x-forwarded-for header.
// see https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_conn_man/headers.html?highlight=skip_xff_append#x-forwarded-for
SkipXffAppend bool `mapstructure:"skip_xff_append" yaml:"skip_xff_append,omitempty" json:"skip_xff_append,omitempty"`
// XffNumTrustedHops determines the trusted client address from x-forwarded-for addresses.
// see https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_conn_man/headers.html?highlight=xff_num_trusted_hops#x-forwarded-for
XffNumTrustedHops uint32 `mapstructure:"xff_num_trusted_hops" yaml:"xff_num_trusted_hops,omitempty" json:"xff_num_trusted_hops,omitempty"`
// Envoy bootstrap options. These do not support dynamic updates.
EnvoyAdminAccessLogPath string `mapstructure:"envoy_admin_access_log_path" yaml:"envoy_admin_access_log_path"`
EnvoyAdminProfilePath string `mapstructure:"envoy_admin_profile_path" yaml:"envoy_admin_profile_path"`
EnvoyAdminAddress string `mapstructure:"envoy_admin_address" yaml:"envoy_admin_address"`
EnvoyBindConfigSourceAddress string `mapstructure:"envoy_bind_config_source_address" yaml:"envoy_bind_config_source_address,omitempty"`
EnvoyBindConfigFreebind null.Bool `mapstructure:"envoy_bind_config_freebind" yaml:"envoy_bind_config_freebind,omitempty"`
// ProgrammaticRedirectDomainWhitelist restricts the allowed redirect URLs when using programmatic login.
ProgrammaticRedirectDomainWhitelist []string `mapstructure:"programmatic_redirect_domain_whitelist" yaml:"programmatic_redirect_domain_whitelist,omitempty" json:"programmatic_redirect_domain_whitelist,omitempty"` //nolint
// CodecType is the codec to use for downstream connections.
CodecType CodecType `mapstructure:"codec_type" yaml:"codec_type"`
AuditKey *PublicKeyEncryptionKeyOptions `mapstructure:"audit_key"`
BrandingOptions httputil.BrandingOptions
}
type certificateFilePair struct {
// CertFile and KeyFile is the x509 certificate used to hydrate TLSCertificate
CertFile string `mapstructure:"cert" yaml:"cert,omitempty"`
KeyFile string `mapstructure:"key" yaml:"key,omitempty"`
}
// DefaultOptions are the default configuration options for pomerium
var defaultOptions = Options{
Debug: false,
LogLevel: "info",
Services: "all",
CookieHTTPOnly: true,
CookieSecure: true,
CookieExpire: 14 * time.Hour,
CookieName: "_pomerium",
DefaultUpstreamTimeout: 30 * time.Second,
Addr: ":443",
ReadTimeout: 30 * time.Second,
WriteTimeout: 0, // support streaming by default
IdleTimeout: 5 * time.Minute,
GRPCAddr: ":443",
GRPCClientTimeout: 10 * time.Second, // Try to withstand transient service failures for a single request
GRPCClientDNSRoundRobin: true,
AuthenticateURLString: "https://authenticate.pomerium.app",
AuthenticateCallbackPath: "/oauth2/callback",
TracingSampleRate: 0.0001,
AutocertOptions: AutocertOptions{
Folder: dataDir(),
},
DataBrokerStorageType: "memory",
SkipXffAppend: false,
XffNumTrustedHops: 0,
EnvoyAdminAccessLogPath: os.DevNull,
EnvoyAdminProfilePath: os.DevNull,
ProgrammaticRedirectDomainWhitelist: []string{"localhost"},
}
var defaultSetResponseHeaders = map[string]string{
"X-Frame-Options": "SAMEORIGIN",
"X-XSS-Protection": "1; mode=block",
"Strict-Transport-Security": "max-age=31536000; includeSubDomains; preload",
}
// NewDefaultOptions returns a copy the default options. It's the caller's
// responsibility to do a follow up Validate call.
func NewDefaultOptions() *Options {
newOpts := defaultOptions
newOpts.viper = viper.New()
return &newOpts
}
// newOptionsFromConfig builds the main binary's configuration options by parsing
// environmental variables and config file
func newOptionsFromConfig(configFile string) (*Options, error) {
o, err := optionsFromViper(configFile)
if err != nil {
return nil, fmt.Errorf("config: options from config file %q: %w", configFile, err)
}
serviceName := telemetry.ServiceName(o.Services)
metrics.AddPolicyCountCallback(serviceName, func() int64 {
return int64(len(o.GetAllPolicies()))
})
return o, nil
}
func optionsFromViper(configFile string) (*Options, error) {
// start a copy of the default options
o := NewDefaultOptions()
v := o.viper
// Load up config
err := bindEnvs(o, v)
if err != nil {
return nil, fmt.Errorf("failed to bind options to env vars: %w", err)
}
if configFile != "" {
v.SetConfigFile(configFile)
if err := v.ReadInConfig(); err != nil {
return nil, fmt.Errorf("failed to read config: %w", err)
}
}
var metadata mapstructure.Metadata
if err := v.Unmarshal(o, ViperPolicyHooks, func(c *mapstructure.DecoderConfig) { c.Metadata = &metadata }); err != nil {
return nil, fmt.Errorf("failed to unmarshal config: %w", err)
}
if err := checkConfigKeysErrors(configFile, metadata.Unused); err != nil {
return nil, err
}
// This is necessary because v.Unmarshal will overwrite .viper field.
o.viper = v
if err := o.Validate(); err != nil {
return nil, fmt.Errorf("validation error %w", err)
}
return o, nil
}
func checkConfigKeysErrors(configFile string, unused []string) error {
checks := CheckUnknownConfigFields(unused)
ctx := context.Background()
errInvalidConfigKeys := errors.New("some configuration options are no longer supported, please check logs for details")
var err error
for _, check := range checks {
var evt *zerolog.Event
switch check.KeyAction {
case KeyActionError:
evt = log.Error(ctx)
err = errInvalidConfigKeys
default:
evt = log.Warn(ctx)
}
evt.Str("config_file", configFile).Str("key", check.Key)
if check.DocsURL != "" {
evt = evt.Str("help", check.DocsURL)
}
evt.Msg(string(check.FieldCheckMsg))
}
return err
}
// parsePolicy initializes policy to the options from either base64 environmental
// variables or from a file
func (o *Options) parsePolicy() error {
var policies []Policy
if err := o.viper.UnmarshalKey("policy", &policies, ViperPolicyHooks); err != nil {
return err
}
if len(policies) != 0 {
o.Policies = policies
}
var routes []Policy
if err := o.viper.UnmarshalKey("routes", &routes, ViperPolicyHooks); err != nil {
return err
}
if len(routes) != 0 {
o.Routes = routes
}
// Finish initializing policies
for i := range o.Policies {
p := &o.Policies[i]
if err := p.Validate(); err != nil {
return err
}
}
for i := range o.Routes {
p := &o.Routes[i]
if err := p.Validate(); err != nil {
return err
}
}
for i := range o.AdditionalPolicies {
p := &o.AdditionalPolicies[i]
if err := p.Validate(); err != nil {
return err
}
}
return nil
}
func (o *Options) viperSet(key string, value interface{}) {
o.viper.Set(key, value)
}
func (o *Options) viperIsSet(key string) bool {
return o.viper.IsSet(key)
}
// parseHeaders handles unmarshalling any custom headers correctly from the
// environment or viper's parsed keys
func (o *Options) parseHeaders(_ context.Context) error {
var headers map[string]string
if o.HeadersEnv != "" {
// Handle JSON by default via viper
if headers = o.viper.GetStringMapString("HeadersEnv"); len(headers) == 0 {
// Try to parse "Key1:Value1,Key2:Value2" syntax
headerSlice := strings.Split(o.HeadersEnv, ",")
for n := range headerSlice {
headerFields := strings.SplitN(headerSlice[n], ":", 2)
if len(headerFields) == 2 {
headers[headerFields[0]] = headerFields[1]
} else {
// Something went wrong
return fmt.Errorf("failed to decode headers from '%s'", o.HeadersEnv)
}
}
}
o.SetResponseHeaders = headers
return nil
}
if o.viperIsSet("set_response_headers") {
if err := o.viper.UnmarshalKey("set_response_headers", &headers); err != nil {
return fmt.Errorf("header %s failed to parse: %w", o.viper.Get("set_response_headers"), err)
}
o.SetResponseHeaders = headers
}
return nil
}
// bindEnvs binds a viper instance to each env var of an Options struct based
// on the mapstructure tag
func bindEnvs(o *Options, v *viper.Viper) error {
tagName := `mapstructure`
t := reflect.TypeOf(*o)
for i := 0; i < t.NumField(); i++ {
field := t.Field(i)
envName := field.Tag.Get(tagName)
err := v.BindEnv(envName)
if err != nil {
return fmt.Errorf("failed to bind field '%s' to env var '%s': %w", field.Name, envName, err)
}
}
// Statically bind fields
err := v.BindEnv("Policy", "POLICY")
if err != nil {
return fmt.Errorf("failed to bind field 'Policy' to env var 'POLICY': %w", err)
}
err = v.BindEnv("HeadersEnv", "HEADERS")
if err != nil {
return fmt.Errorf("failed to bind field 'HeadersEnv' to env var 'HEADERS': %w", err)
}
// autocert options
ao := reflect.TypeOf(o.AutocertOptions)
for i := 0; i < ao.NumField(); i++ {
field := ao.Field(i)
envName := field.Tag.Get(tagName)
err := v.BindEnv(envName)
if err != nil {
return fmt.Errorf("failed to bind field '%s' to env var '%s': %w", field.Name, envName, err)
}
}
return nil
}
// Validate ensures the Options fields are valid, and hydrated.
func (o *Options) Validate() error {
ctx := context.TODO()
if !IsValidService(o.Services) {
return fmt.Errorf("config: %s is an invalid service type", o.Services)
}
switch o.DataBrokerStorageType {
case StorageInMemoryName:
case StorageRedisName, StoragePostgresName:
if o.DataBrokerStorageConnectionString == "" {
return errors.New("config: missing databroker storage backend dsn")
}
default:
return errors.New("config: unknown databroker storage backend type")
}
_, err := o.GetSharedKey()
if err != nil {
return fmt.Errorf("config: invalid shared secret: %w", err)
}
if o.AuthenticateURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.AuthenticateURLString)
if err != nil {
return fmt.Errorf("config: bad authenticate-url %s : %w", o.AuthenticateURLString, err)
}
}
if o.AuthenticateInternalURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.AuthenticateInternalURLString)
if err != nil {
return fmt.Errorf("config: bad authenticate-internal-url %s : %w", o.AuthenticateInternalURLString, err)
}
}
if o.SignOutRedirectURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.SignOutRedirectURLString)
if err != nil {
return fmt.Errorf("config: bad signout-redirect-url %s : %w", o.SignOutRedirectURLString, err)
}
}
if o.AuthorizeURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.AuthorizeURLString)
if err != nil {
return fmt.Errorf("config: bad authorize-url %s : %w", o.AuthorizeURLString, err)
}
}
if o.AuthorizeInternalURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.AuthorizeInternalURLString)
if err != nil {
return fmt.Errorf("config: bad authorize-internal-url %s : %w", o.AuthorizeInternalURLString, err)
}
}
if o.DataBrokerURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.DataBrokerURLString)
if err != nil {
return fmt.Errorf("config: bad databroker service url %s : %w", o.DataBrokerURLString, err)
}
}
if o.DataBrokerInternalURLString != "" {
_, err := urlutil.ParseAndValidateURL(o.DataBrokerInternalURLString)
if err != nil {
return fmt.Errorf("config: bad databroker internal service url %s : %w", o.DataBrokerInternalURLString, err)
}
}
if o.PolicyFile != "" {
return errors.New("config: policy file setting is deprecated")
}
if err := o.parsePolicy(); err != nil {
return fmt.Errorf("config: failed to parse policy: %w", err)
}
if err := o.parseHeaders(ctx); err != nil {
return fmt.Errorf("config: failed to parse headers: %w", err)
}
hasCert := false
if o.Cert != "" || o.Key != "" {
_, err := cryptutil.CertificateFromBase64(o.Cert, o.Key)
if err != nil {
return fmt.Errorf("config: bad cert base64 %w", err)
}
hasCert = true
}
for _, c := range o.CertificateFiles {
_, err := cryptutil.CertificateFromBase64(c.CertFile, c.KeyFile)
if err != nil {
_, err = cryptutil.CertificateFromFile(c.CertFile, c.KeyFile)
}
if err != nil {
return fmt.Errorf("config: bad cert entry, base64 or file reference invalid. %w", err)
}
hasCert = true
}
if o.CertFile != "" || o.KeyFile != "" {
_, err := cryptutil.CertificateFromFile(o.CertFile, o.KeyFile)
if err != nil {
return fmt.Errorf("config: bad cert file %w", err)
}
hasCert = true
}
if o.DataBrokerStorageCertFile != "" || o.DataBrokerStorageCertKeyFile != "" {
_, err := cryptutil.CertificateFromFile(o.DataBrokerStorageCertFile, o.DataBrokerStorageCertKeyFile)
if err != nil {
return fmt.Errorf("config: bad databroker cert file %w", err)
}
}
if o.DataBrokerStorageCAFile != "" {
if _, err := os.Stat(o.DataBrokerStorageCAFile); err != nil {
return fmt.Errorf("config: bad databroker ca file: %w", err)
}
}
if o.ClientCA != "" {
if _, err := base64.StdEncoding.DecodeString(o.ClientCA); err != nil {
return fmt.Errorf("config: bad client ca base64: %w", err)
}
}
if o.ClientCAFile != "" {
_, err := os.ReadFile(o.ClientCAFile)
if err != nil {
return fmt.Errorf("config: bad client ca file: %w", err)
}
}
if o.ClientCRL != "" {
_, err = cryptutil.CRLFromBase64(o.ClientCRL)
if err != nil {
return fmt.Errorf("config: bad client crl base64: %w", err)
}
}
if o.ClientCRLFile != "" {
_, err = cryptutil.CRLFromFile(o.ClientCRLFile)
if err != nil {
return fmt.Errorf("config: bad client crl file: %w", err)
}
}
// strip quotes from redirect address (#811)
o.HTTPRedirectAddr = strings.Trim(o.HTTPRedirectAddr, `"'`)
if !o.InsecureServer && !hasCert && !o.AutocertOptions.Enable {
log.Warn(ctx).Msg("neither `autocert`, " +
"`insecure_server` or manually provided certificates were provided, server will be using a self-signed certificate")
}
if err := ValidateDNSLookupFamily(o.DNSLookupFamily); err != nil {
return fmt.Errorf("config: %w", err)
}
if o.MetricsAddr != "" {
if err := ValidateMetricsAddress(o.MetricsAddr); err != nil {
return fmt.Errorf("config: invalid metrics_addr: %w", err)
}
}
// validate metrics basic auth
if o.MetricsBasicAuth != "" {
str, err := base64.StdEncoding.DecodeString(o.MetricsBasicAuth)
if err != nil {
return fmt.Errorf("config: metrics_basic_auth must be a base64 encoded string")
}
if !strings.Contains(string(str), ":") {
return fmt.Errorf("config: metrics_basic_auth should contain a user name and password separated by a colon")
}
}
if o.MetricsCertificate != "" && o.MetricsCertificateKey != "" {
_, err := cryptutil.CertificateFromBase64(o.MetricsCertificate, o.MetricsCertificateKey)
if err != nil {
return fmt.Errorf("config: invalid metrics_certificate or metrics_certificate_key: %w", err)
}
}
if o.MetricsCertificateFile != "" && o.MetricsCertificateKeyFile != "" {
_, err := cryptutil.CertificateFromFile(o.MetricsCertificateFile, o.MetricsCertificateKeyFile)
if err != nil {
return fmt.Errorf("config: invalid metrics_certificate_file or metrics_certificate_key_file: %w", err)
}
}
// validate the Autocert options
err = o.AutocertOptions.Validate()
if err != nil {
return err
}
return nil
}
// GetDeriveInternalDomain returns an optional internal domain name to use for gRPC endpoint
func (o *Options) GetDeriveInternalDomain() string {
if o.DeriveInternalDomainCert == nil {
return ""
}
return strings.ToLower(*o.DeriveInternalDomainCert)
}
// GetAuthenticateURL returns the AuthenticateURL in the options or 127.0.0.1.
func (o *Options) GetAuthenticateURL() (*url.URL, error) {
rawurl := o.AuthenticateURLString
if rawurl == "" {
rawurl = "https://127.0.0.1"
}
return urlutil.ParseAndValidateURL(rawurl)
}
// GetInternalAuthenticateURL returns the internal AuthenticateURL in the options or the AuthenticateURL.
func (o *Options) GetInternalAuthenticateURL() (*url.URL, error) {
rawurl := o.AuthenticateInternalURLString
if rawurl == "" {
return o.GetAuthenticateURL()
}
return urlutil.ParseAndValidateURL(o.AuthenticateInternalURLString)
}
// GetAuthorizeURLs returns the AuthorizeURLs in the options or 127.0.0.1:5443.
func (o *Options) GetAuthorizeURLs() ([]*url.URL, error) {
if IsAll(o.Services) && o.AuthorizeURLString == "" && len(o.AuthorizeURLStrings) == 0 {
u, err := urlutil.ParseAndValidateURL("http://127.0.0.1" + DefaultAlternativeAddr)
if err != nil {
return nil, err
}
return []*url.URL{u}, nil
}
return o.getURLs(append([]string{o.AuthorizeURLString}, o.AuthorizeURLStrings...)...)
}
// GetInternalAuthorizeURLs returns the internal AuthorizeURLs in the options or the AuthorizeURLs.
func (o *Options) GetInternalAuthorizeURLs() ([]*url.URL, error) {
rawurl := o.AuthorizeInternalURLString
if rawurl == "" {
return o.GetAuthorizeURLs()
}
return o.getURLs(rawurl)
}
// GetDataBrokerURLs returns the DataBrokerURLs in the options or 127.0.0.1:5443.
func (o *Options) GetDataBrokerURLs() ([]*url.URL, error) {
if IsAll(o.Services) && o.DataBrokerURLString == "" && len(o.DataBrokerURLStrings) == 0 {
u, err := urlutil.ParseAndValidateURL("http://127.0.0.1" + DefaultAlternativeAddr)
if err != nil {
return nil, err
}
return []*url.URL{u}, nil
}
return o.getURLs(append([]string{o.DataBrokerURLString}, o.DataBrokerURLStrings...)...)
}
// GetInternalDataBrokerURLs returns the internal DataBrokerURLs in the options or the DataBrokerURLs.
func (o *Options) GetInternalDataBrokerURLs() ([]*url.URL, error) {
rawurl := o.DataBrokerInternalURLString
if rawurl == "" {
return o.GetDataBrokerURLs()
}
return o.getURLs(rawurl)
}
func (o *Options) getURLs(strs ...string) ([]*url.URL, error) {
var urls []*url.URL
if o != nil {
for _, str := range strs {
if str == "" {
continue
}
u, err := urlutil.ParseAndValidateURL(str)
if err != nil {
return nil, err
}
urls = append(urls, u)
}
}
if len(urls) == 0 {
u, _ := url.Parse("http://127.0.0.1" + DefaultAlternativeAddr)
urls = append(urls, u)
}
return urls, nil
}
// GetGRPCAddr gets the gRPC address.
func (o *Options) GetGRPCAddr() string {
// to avoid port collision when running on localhost
if IsAll(o.Services) && o.GRPCAddr == defaultOptions.GRPCAddr {
return DefaultAlternativeAddr
}
return o.GRPCAddr
}
// GetGRPCInsecure gets whether or not gRPC is insecure.
func (o *Options) GetGRPCInsecure() bool {
if o.GRPCInsecure != nil {
return *o.GRPCInsecure
}
if IsAll(o.Services) {
return true
}
return false
}
// GetSignOutRedirectURL gets the SignOutRedirectURL.
func (o *Options) GetSignOutRedirectURL() (*url.URL, error) {
rawurl := o.SignOutRedirectURLString
if rawurl == "" {
return nil, nil
}
return urlutil.ParseAndValidateURL(rawurl)
}
// GetMetricsCertificate returns the metrics certificate to use for TLS. `nil` will be
// returned if there is no certificate.
func (o *Options) GetMetricsCertificate() (*tls.Certificate, error) {
if o.MetricsCertificate != "" && o.MetricsCertificateKey != "" {
return cryptutil.CertificateFromBase64(o.MetricsCertificate, o.MetricsCertificateKey)
}
if o.MetricsCertificateFile != "" && o.MetricsCertificateKeyFile != "" {
return cryptutil.CertificateFromFile(o.MetricsCertificateFile, o.MetricsCertificateKeyFile)
}
return nil, nil
}
// GetOauthOptions gets the oauth.Options for the given config options.
func (o *Options) GetOauthOptions() (oauth.Options, error) {
redirectURL, err := o.GetAuthenticateURL()
if err != nil {
return oauth.Options{}, err
}
redirectURL = redirectURL.ResolveReference(&url.URL{
Path: o.AuthenticateCallbackPath,
})
clientSecret, err := o.GetClientSecret()
if err != nil {
return oauth.Options{}, err
}
return oauth.Options{
RedirectURL: redirectURL,
ProviderName: o.Provider,
ProviderURL: o.ProviderURL,
ClientID: o.ClientID,
ClientSecret: clientSecret,
Scopes: o.Scopes,
}, nil
}
// GetAllPolicies gets all the policies in the options.
func (o *Options) GetAllPolicies() []Policy {
if o == nil {
return nil
}
policies := make([]Policy, 0, len(o.Policies)+len(o.Routes)+len(o.AdditionalPolicies))
policies = append(policies, o.Policies...)
policies = append(policies, o.Routes...)
policies = append(policies, o.AdditionalPolicies...)
return policies
}
// GetMetricsBasicAuth gets the metrics basic auth username and password.
func (o *Options) GetMetricsBasicAuth() (username, password string, ok bool) {
if o.MetricsBasicAuth == "" {
return "", "", false
}
bs, err := base64.StdEncoding.DecodeString(o.MetricsBasicAuth)
if err != nil {
return "", "", false
}
idx := bytes.Index(bs, []byte{':'})
if idx == -1 {
return "", "", false
}
return string(bs[:idx]), string(bs[idx+1:]), true
}
// GetClientCA returns the client certificate authority. If neither client_ca nor client_ca_file is specified nil will
// be returned.
func (o *Options) GetClientCA() ([]byte, error) {
if o.ClientCA != "" {
return base64.StdEncoding.DecodeString(o.ClientCA)
}
if o.ClientCAFile != "" {
return os.ReadFile(o.ClientCAFile)
}
return nil, nil
}
// GetDataBrokerCertificate gets the optional databroker certificate. This method will return nil if no certificate is
// specified.
func (o *Options) GetDataBrokerCertificate() (*tls.Certificate, error) {
if o.DataBrokerStorageCertFile == "" || o.DataBrokerStorageCertKeyFile == "" {
return nil, nil
}
return cryptutil.CertificateFromFile(o.DataBrokerStorageCertFile, o.DataBrokerStorageCertKeyFile)
}
// GetCertificates gets all the certificates from the options.
func (o *Options) GetCertificates() ([]tls.Certificate, error) {
var certs []tls.Certificate
if o.Cert != "" && o.Key != "" {
cert, err := cryptutil.CertificateFromBase64(o.Cert, o.Key)
if err != nil {
return nil, fmt.Errorf("config: invalid base64 certificate: %w", err)
}
certs = append(certs, *cert)
}
for _, c := range o.CertificateFiles {
cert, err := cryptutil.CertificateFromBase64(c.CertFile, c.KeyFile)
if err != nil {
cert, err = cryptutil.CertificateFromFile(c.CertFile, c.KeyFile)
}
if err != nil {
return nil, fmt.Errorf("config: invalid certificate entry: %w", err)
}
certs = append(certs, *cert)
}
if o.CertFile != "" && o.KeyFile != "" {
cert, err := cryptutil.CertificateFromFile(o.CertFile, o.KeyFile)
if err != nil {
return nil, fmt.Errorf("config: bad cert file %w", err)
}
certs = append(certs, *cert)
}
return certs, nil
}
// GetSharedKey gets the decoded shared key.
func (o *Options) GetSharedKey() ([]byte, error) {
sharedKey := o.SharedKey
if o.SharedSecretFile != "" {
bs, err := os.ReadFile(o.SharedSecretFile)
if err != nil {
return nil, err
}
sharedKey = string(bs)
}
// mutual auth between services on the same host can be generated at runtime
if IsAll(o.Services) && sharedKey == "" {
sharedKey = randomSharedKey
}
if sharedKey == "" {
return nil, errors.New("empty shared secret")
}
if strings.TrimSpace(sharedKey) != sharedKey {
return nil, errors.New("shared secret contains whitespace")
}
return base64.StdEncoding.DecodeString(sharedKey)
}
// GetHPKEPrivateKey gets the hpke.PrivateKey dervived from the shared key.
func (o *Options) GetHPKEPrivateKey() (*hpke.PrivateKey, error) {
sharedKey, err := o.GetSharedKey()
if err != nil {
return nil, err