/
node_options.cc
1199 lines (1104 loc) · 45.5 KB
/
node_options.cc
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
#include "node_options.h" // NOLINT(build/include_inline)
#include "node_options-inl.h"
#include "env-inl.h"
#include "node_binding.h"
#include "node_external_reference.h"
#include "node_internals.h"
#include <errno.h>
#include <sstream>
#include <limits>
#include <algorithm>
#include <cstdlib> // strtoul, errno
using v8::Boolean;
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::Integer;
using v8::Isolate;
using v8::Local;
using v8::Map;
using v8::Number;
using v8::Object;
using v8::Undefined;
using v8::Value;
namespace node {
namespace per_process {
Mutex cli_options_mutex;
std::shared_ptr<PerProcessOptions> cli_options{new PerProcessOptions()};
} // namespace per_process
void DebugOptions::CheckOptions(std::vector<std::string>* errors) {
#if !NODE_USE_V8_PLATFORM && !HAVE_INSPECTOR
if (inspector_enabled) {
errors->push_back("Inspector is not available when Node is compiled "
"--without-v8-platform and --without-inspector.");
}
#endif
if (deprecated_debug) {
errors->push_back("[DEP0062]: `node --debug` and `node --debug-brk` "
"are invalid. Please use `node --inspect` and "
"`node --inspect-brk` instead.");
}
std::vector<std::string> destinations =
SplitString(inspect_publish_uid_string, ',');
inspect_publish_uid.console = false;
inspect_publish_uid.http = false;
for (const std::string& destination : destinations) {
if (destination == "stderr") {
inspect_publish_uid.console = true;
} else if (destination == "http") {
inspect_publish_uid.http = true;
} else {
errors->push_back("--inspect-publish-uid destination can be "
"stderr or http");
}
}
}
void PerProcessOptions::CheckOptions(std::vector<std::string>* errors) {
#if HAVE_OPENSSL
if (use_openssl_ca && use_bundled_ca) {
errors->push_back("either --use-openssl-ca or --use-bundled-ca can be "
"used, not both");
}
// Any value less than 2 disables use of the secure heap.
if (secure_heap >= 2) {
if ((secure_heap & (secure_heap - 1)) != 0)
errors->push_back("--secure-heap must be a power of 2");
secure_heap_min =
std::min({
secure_heap,
secure_heap_min,
static_cast<int64_t>(std::numeric_limits<int>::max())});
secure_heap_min = std::max(static_cast<int64_t>(2), secure_heap_min);
if ((secure_heap_min & (secure_heap_min - 1)) != 0)
errors->push_back("--secure-heap-min must be a power of 2");
}
#endif // HAVE_OPENSSL
if (use_largepages != "off" &&
use_largepages != "on" &&
use_largepages != "silent") {
errors->push_back("invalid value for --use-largepages");
}
per_isolate->CheckOptions(errors);
}
void PerIsolateOptions::CheckOptions(std::vector<std::string>* errors) {
per_env->CheckOptions(errors);
}
void EnvironmentOptions::CheckOptions(std::vector<std::string>* errors) {
if (has_policy_integrity_string && experimental_policy.empty()) {
errors->push_back("--policy-integrity requires "
"--experimental-policy be enabled");
}
if (has_policy_integrity_string && experimental_policy_integrity.empty()) {
errors->push_back("--policy-integrity cannot be empty");
}
if (!module_type.empty()) {
if (module_type != "commonjs" && module_type != "module") {
errors->push_back("--input-type must be \"module\" or \"commonjs\"");
}
}
if (!experimental_specifier_resolution.empty()) {
if (experimental_specifier_resolution != "node" &&
experimental_specifier_resolution != "explicit") {
errors->push_back(
"invalid value for --experimental-specifier-resolution");
}
}
if (syntax_check_only && has_eval_string) {
errors->push_back("either --check or --eval can be used, not both");
}
if (!unhandled_rejections.empty() &&
unhandled_rejections != "warn-with-error-code" &&
unhandled_rejections != "throw" &&
unhandled_rejections != "strict" &&
unhandled_rejections != "warn" &&
unhandled_rejections != "none") {
errors->push_back("invalid value for --unhandled-rejections");
}
if (tls_min_v1_3 && tls_max_v1_2) {
errors->push_back("either --tls-min-v1.3 or --tls-max-v1.2 can be "
"used, not both");
}
if (heap_snapshot_near_heap_limit < 0) {
errors->push_back("--heap-snapshot-near-heap-limit must not be negative");
}
#if HAVE_INSPECTOR
if (!cpu_prof) {
if (!cpu_prof_name.empty()) {
errors->push_back("--cpu-prof-name must be used with --cpu-prof");
}
if (!cpu_prof_dir.empty()) {
errors->push_back("--cpu-prof-dir must be used with --cpu-prof");
}
// We can't catch the case where the value passed is the default value,
// then the option just becomes a noop which is fine.
if (cpu_prof_interval != kDefaultCpuProfInterval) {
errors->push_back("--cpu-prof-interval must be used with --cpu-prof");
}
}
if (cpu_prof && cpu_prof_dir.empty() && !diagnostic_dir.empty()) {
cpu_prof_dir = diagnostic_dir;
}
if (!heap_prof) {
if (!heap_prof_name.empty()) {
errors->push_back("--heap-prof-name must be used with --heap-prof");
}
if (!heap_prof_dir.empty()) {
errors->push_back("--heap-prof-dir must be used with --heap-prof");
}
// We can't catch the case where the value passed is the default value,
// then the option just becomes a noop which is fine.
if (heap_prof_interval != kDefaultHeapProfInterval) {
errors->push_back("--heap-prof-interval must be used with --heap-prof");
}
}
if (heap_prof && heap_prof_dir.empty() && !diagnostic_dir.empty()) {
heap_prof_dir = diagnostic_dir;
}
debug_options_.CheckOptions(errors);
#endif // HAVE_INSPECTOR
}
namespace options_parser {
class DebugOptionsParser : public OptionsParser<DebugOptions> {
public:
DebugOptionsParser();
};
class EnvironmentOptionsParser : public OptionsParser<EnvironmentOptions> {
public:
EnvironmentOptionsParser();
explicit EnvironmentOptionsParser(const DebugOptionsParser& dop)
: EnvironmentOptionsParser() {
Insert(dop, &EnvironmentOptions::get_debug_options);
}
};
class PerIsolateOptionsParser : public OptionsParser<PerIsolateOptions> {
public:
PerIsolateOptionsParser() = delete;
explicit PerIsolateOptionsParser(const EnvironmentOptionsParser& eop);
};
class PerProcessOptionsParser : public OptionsParser<PerProcessOptions> {
public:
PerProcessOptionsParser() = delete;
explicit PerProcessOptionsParser(const PerIsolateOptionsParser& iop);
};
#if HAVE_INSPECTOR
const DebugOptionsParser _dop_instance{};
const EnvironmentOptionsParser _eop_instance{_dop_instance};
// This Parse is not dead code. It is used by embedders (e.g., Electron).
template <>
void Parse(
StringVector* const args, StringVector* const exec_args,
StringVector* const v8_args,
DebugOptions* const options,
OptionEnvvarSettings required_env_settings, StringVector* const errors) {
_dop_instance.Parse(
args, exec_args, v8_args, options, required_env_settings, errors);
}
#else
const EnvironmentOptionsParser _eop_instance{};
#endif // HAVE_INSPECTOR
const PerIsolateOptionsParser _piop_instance{_eop_instance};
const PerProcessOptionsParser _ppop_instance{_piop_instance};
template <>
void Parse(
StringVector* const args, StringVector* const exec_args,
StringVector* const v8_args,
PerIsolateOptions* const options,
OptionEnvvarSettings required_env_settings, StringVector* const errors) {
_piop_instance.Parse(
args, exec_args, v8_args, options, required_env_settings, errors);
}
template <>
void Parse(
StringVector* const args, StringVector* const exec_args,
StringVector* const v8_args,
PerProcessOptions* const options,
OptionEnvvarSettings required_env_settings, StringVector* const errors) {
_ppop_instance.Parse(
args, exec_args, v8_args, options, required_env_settings, errors);
}
// XXX: If you add an option here, please also add it to doc/node.1 and
// doc/api/cli.md
// TODO(addaleax): Make that unnecessary.
DebugOptionsParser::DebugOptionsParser() {
AddOption("--inspect-port",
"set host:port for inspector",
&DebugOptions::host_port,
kAllowedInEnvironment);
AddAlias("--debug-port", "--inspect-port");
AddOption("--inspect",
"activate inspector on host:port (default: 127.0.0.1:9229)",
&DebugOptions::inspector_enabled,
kAllowedInEnvironment);
AddAlias("--inspect=", { "--inspect-port", "--inspect" });
AddOption("--debug", "", &DebugOptions::deprecated_debug);
AddAlias("--debug=", "--debug");
AddOption("--debug-brk", "", &DebugOptions::deprecated_debug);
AddAlias("--debug-brk=", "--debug-brk");
AddOption("--inspect-brk",
"activate inspector on host:port and break at start of user script",
&DebugOptions::break_first_line,
kAllowedInEnvironment);
Implies("--inspect-brk", "--inspect");
AddAlias("--inspect-brk=", { "--inspect-port", "--inspect-brk" });
AddOption("--inspect-brk-node", "", &DebugOptions::break_node_first_line);
Implies("--inspect-brk-node", "--inspect");
AddAlias("--inspect-brk-node=", { "--inspect-port", "--inspect-brk-node" });
AddOption("--inspect-publish-uid",
"comma separated list of destinations for inspector uid"
"(default: stderr,http)",
&DebugOptions::inspect_publish_uid_string,
kAllowedInEnvironment);
}
EnvironmentOptionsParser::EnvironmentOptionsParser() {
AddOption("--conditions",
"additional user conditions for conditional exports and imports",
&EnvironmentOptions::conditions,
kAllowedInEnvironment);
AddAlias("-C", "--conditions");
AddOption("--diagnostic-dir",
"set dir for all output files"
" (default: current working directory)",
&EnvironmentOptions::diagnostic_dir,
kAllowedInEnvironment);
AddOption("--dns-result-order",
"set default value of verbatim in dns.lookup. Options are "
"'ipv4first' (IPv4 addresses are placed before IPv6 addresses) "
"'verbatim' (addresses are in the order the DNS resolver "
"returned)",
&EnvironmentOptions::dns_result_order,
kAllowedInEnvironment);
AddOption("--enable-source-maps",
"Source Map V3 support for stack traces",
&EnvironmentOptions::enable_source_maps,
kAllowedInEnvironment);
AddOption("--experimental-abortcontroller", "",
NoOp{}, kAllowedInEnvironment);
AddOption("--experimental-fetch",
"experimental Fetch API",
&EnvironmentOptions::experimental_fetch,
kAllowedInEnvironment);
AddOption("--experimental-json-modules", "", NoOp{}, kAllowedInEnvironment);
AddOption("--experimental-global-webcrypto",
"expose experimental Web Crypto API on the global scope",
&EnvironmentOptions::experimental_global_web_crypto,
kAllowedInEnvironment);
AddOption("--experimental-loader",
"use the specified module as a custom loader",
&EnvironmentOptions::userland_loader,
kAllowedInEnvironment);
AddAlias("--loader", "--experimental-loader");
AddOption("--experimental-modules", "", NoOp{}, kAllowedInEnvironment);
AddOption("--experimental-network-imports",
"experimental https: support for the ES Module loader",
&EnvironmentOptions::experimental_https_modules,
kAllowedInEnvironment);
AddOption("--experimental-wasm-modules",
"experimental ES Module support for webassembly modules",
&EnvironmentOptions::experimental_wasm_modules,
kAllowedInEnvironment);
AddOption("--experimental-import-meta-resolve",
"experimental ES Module import.meta.resolve() support",
&EnvironmentOptions::experimental_import_meta_resolve,
kAllowedInEnvironment);
AddOption("--experimental-policy",
"use the specified file as a "
"security policy",
&EnvironmentOptions::experimental_policy,
kAllowedInEnvironment);
AddOption("[has_policy_integrity_string]",
"",
&EnvironmentOptions::has_policy_integrity_string);
AddOption("--policy-integrity",
"ensure the security policy contents match "
"the specified integrity",
&EnvironmentOptions::experimental_policy_integrity,
kAllowedInEnvironment);
Implies("--policy-integrity", "[has_policy_integrity_string]");
AddOption("--experimental-repl-await",
"experimental await keyword support in REPL",
&EnvironmentOptions::experimental_repl_await,
kAllowedInEnvironment,
true);
AddOption("--experimental-vm-modules",
"experimental ES Module support in vm module",
&EnvironmentOptions::experimental_vm_modules,
kAllowedInEnvironment);
AddOption("--experimental-worker", "", NoOp{}, kAllowedInEnvironment);
AddOption("--experimental-report", "", NoOp{}, kAllowedInEnvironment);
AddOption("--experimental-wasi-unstable-preview1",
"experimental WASI support",
&EnvironmentOptions::experimental_wasi,
kAllowedInEnvironment);
AddOption("--expose-internals", "", &EnvironmentOptions::expose_internals);
AddOption("--frozen-intrinsics",
"experimental frozen intrinsics support",
&EnvironmentOptions::frozen_intrinsics,
kAllowedInEnvironment);
AddOption("--heapsnapshot-signal",
"Generate heap snapshot on specified signal",
&EnvironmentOptions::heap_snapshot_signal,
kAllowedInEnvironment);
AddOption("--heapsnapshot-near-heap-limit",
"Generate heap snapshots whenever V8 is approaching "
"the heap limit. No more than the specified number of "
"heap snapshots will be generated.",
&EnvironmentOptions::heap_snapshot_near_heap_limit,
kAllowedInEnvironment);
AddOption("--http-parser", "", NoOp{}, kAllowedInEnvironment);
AddOption("--insecure-http-parser",
"use an insecure HTTP parser that accepts invalid HTTP headers",
&EnvironmentOptions::insecure_http_parser,
kAllowedInEnvironment);
AddOption("--input-type",
"set module type for string input",
&EnvironmentOptions::module_type,
kAllowedInEnvironment);
AddOption("--experimental-specifier-resolution",
"Select extension resolution algorithm for es modules; "
"either 'explicit' (default) or 'node'",
&EnvironmentOptions::experimental_specifier_resolution,
kAllowedInEnvironment);
AddAlias("--es-module-specifier-resolution",
"--experimental-specifier-resolution");
AddOption("--deprecation",
"silence deprecation warnings",
&EnvironmentOptions::deprecation,
kAllowedInEnvironment,
true);
AddOption("--force-async-hooks-checks",
"disable checks for async_hooks",
&EnvironmentOptions::force_async_hooks_checks,
kAllowedInEnvironment,
true);
AddOption("--addons",
"disable loading native addons",
&EnvironmentOptions::allow_native_addons,
kAllowedInEnvironment,
true);
AddOption("--global-search-paths",
"disable global module search paths",
&EnvironmentOptions::global_search_paths,
kAllowedInEnvironment,
true);
AddOption("--warnings",
"silence all process warnings",
&EnvironmentOptions::warnings,
kAllowedInEnvironment,
true);
AddOption("--force-context-aware",
"disable loading non-context-aware addons",
&EnvironmentOptions::force_context_aware,
kAllowedInEnvironment);
AddOption("--pending-deprecation",
"emit pending deprecation warnings",
&EnvironmentOptions::pending_deprecation,
kAllowedInEnvironment);
AddOption("--preserve-symlinks",
"preserve symbolic links when resolving",
&EnvironmentOptions::preserve_symlinks,
kAllowedInEnvironment);
AddOption("--preserve-symlinks-main",
"preserve symbolic links when resolving the main module",
&EnvironmentOptions::preserve_symlinks_main,
kAllowedInEnvironment);
AddOption("--prof",
"Generate V8 profiler output.",
V8Option{});
AddOption("--prof-process",
"process V8 profiler output generated using --prof",
&EnvironmentOptions::prof_process);
// Options after --prof-process are passed through to the prof processor.
AddAlias("--prof-process", { "--prof-process", "--" });
#if HAVE_INSPECTOR
AddOption("--cpu-prof",
"Start the V8 CPU profiler on start up, and write the CPU profile "
"to disk before exit. If --cpu-prof-dir is not specified, write "
"the profile to the current working directory.",
&EnvironmentOptions::cpu_prof);
AddOption("--cpu-prof-name",
"specified file name of the V8 CPU profile generated with "
"--cpu-prof",
&EnvironmentOptions::cpu_prof_name);
AddOption("--cpu-prof-interval",
"specified sampling interval in microseconds for the V8 CPU "
"profile generated with --cpu-prof. (default: 1000)",
&EnvironmentOptions::cpu_prof_interval);
AddOption("--cpu-prof-dir",
"Directory where the V8 profiles generated by --cpu-prof will be "
"placed. Does not affect --prof.",
&EnvironmentOptions::cpu_prof_dir);
AddOption(
"--heap-prof",
"Start the V8 heap profiler on start up, and write the heap profile "
"to disk before exit. If --heap-prof-dir is not specified, write "
"the profile to the current working directory.",
&EnvironmentOptions::heap_prof);
AddOption("--heap-prof-name",
"specified file name of the V8 heap profile generated with "
"--heap-prof",
&EnvironmentOptions::heap_prof_name);
AddOption("--heap-prof-dir",
"Directory where the V8 heap profiles generated by --heap-prof "
"will be placed.",
&EnvironmentOptions::heap_prof_dir);
AddOption("--heap-prof-interval",
"specified sampling interval in bytes for the V8 heap "
"profile generated with --heap-prof. (default: 512 * 1024)",
&EnvironmentOptions::heap_prof_interval);
#endif // HAVE_INSPECTOR
AddOption("--max-http-header-size",
"set the maximum size of HTTP headers (default: 16384 (16KB))",
&EnvironmentOptions::max_http_header_size,
kAllowedInEnvironment);
AddOption("--redirect-warnings",
"write warnings to file instead of stderr",
&EnvironmentOptions::redirect_warnings,
kAllowedInEnvironment);
AddOption("--test-udp-no-try-send", "", // For testing only.
&EnvironmentOptions::test_udp_no_try_send);
AddOption("--throw-deprecation",
"throw an exception on deprecations",
&EnvironmentOptions::throw_deprecation,
kAllowedInEnvironment);
AddOption("--trace-atomics-wait",
"trace Atomics.wait() operations",
&EnvironmentOptions::trace_atomics_wait,
kAllowedInEnvironment);
AddOption("--trace-deprecation",
"show stack traces on deprecations",
&EnvironmentOptions::trace_deprecation,
kAllowedInEnvironment);
AddOption("--trace-exit",
"show stack trace when an environment exits",
&EnvironmentOptions::trace_exit,
kAllowedInEnvironment);
AddOption("--trace-sync-io",
"show stack trace when use of sync IO is detected after the "
"first tick",
&EnvironmentOptions::trace_sync_io,
kAllowedInEnvironment);
AddOption("--trace-tls",
"prints TLS packet trace information to stderr",
&EnvironmentOptions::trace_tls,
kAllowedInEnvironment);
AddOption("--trace-uncaught",
"show stack traces for the `throw` behind uncaught exceptions",
&EnvironmentOptions::trace_uncaught,
kAllowedInEnvironment);
AddOption("--trace-warnings",
"show stack traces on process warnings",
&EnvironmentOptions::trace_warnings,
kAllowedInEnvironment);
AddOption("--unhandled-rejections",
"define unhandled rejections behavior. Options are 'strict' "
"(always raise an error), 'throw' (raise an error unless "
"'unhandledRejection' hook is set), 'warn' (log a warning), 'none' "
"(silence warnings), 'warn-with-error-code' (log a warning and set "
"exit code 1 unless 'unhandledRejection' hook is set). (default: "
"throw)",
&EnvironmentOptions::unhandled_rejections,
kAllowedInEnvironment);
AddOption("--verify-base-objects",
"", /* undocumented, only for debugging */
&EnvironmentOptions::verify_base_objects,
kAllowedInEnvironment);
AddOption("--check",
"syntax check script without executing",
&EnvironmentOptions::syntax_check_only);
AddAlias("-c", "--check");
// This option is only so that we can tell --eval with an empty string from
// no eval at all. Having it not start with a dash makes it inaccessible
// from the parser itself, but available for using Implies().
// TODO(addaleax): When moving --help over to something generated from the
// programmatic descriptions, this will need some special care.
// (See also [ssl_openssl_cert_store] below.)
AddOption("[has_eval_string]", "", &EnvironmentOptions::has_eval_string);
AddOption("--eval", "evaluate script", &EnvironmentOptions::eval_string);
Implies("--eval", "[has_eval_string]");
AddOption("--print",
"evaluate script and print result",
&EnvironmentOptions::print_eval);
AddAlias("-e", "--eval");
AddAlias("--print <arg>", "-pe");
AddAlias("-pe", { "--print", "--eval" });
AddAlias("-p", "--print");
AddOption("--require",
"module to preload (option can be repeated)",
&EnvironmentOptions::preload_modules,
kAllowedInEnvironment);
AddAlias("-r", "--require");
AddOption("--interactive",
"always enter the REPL even if stdin does not appear "
"to be a terminal",
&EnvironmentOptions::force_repl);
AddAlias("-i", "--interactive");
AddOption("--napi-modules", "", NoOp{}, kAllowedInEnvironment);
AddOption("--tls-keylog",
"log TLS decryption keys to named file for traffic analysis",
&EnvironmentOptions::tls_keylog, kAllowedInEnvironment);
AddOption("--tls-min-v1.0",
"set default TLS minimum to TLSv1.0 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_0,
kAllowedInEnvironment);
AddOption("--tls-min-v1.1",
"set default TLS minimum to TLSv1.1 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_1,
kAllowedInEnvironment);
AddOption("--tls-min-v1.2",
"set default TLS minimum to TLSv1.2 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_2,
kAllowedInEnvironment);
AddOption("--tls-min-v1.3",
"set default TLS minimum to TLSv1.3 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_3,
kAllowedInEnvironment);
AddOption("--tls-max-v1.2",
"set default TLS maximum to TLSv1.2 (default: TLSv1.3)",
&EnvironmentOptions::tls_max_v1_2,
kAllowedInEnvironment);
// Current plan is:
// - 11.x and below: TLS1.3 is opt-in with --tls-max-v1.3
// - 12.x: TLS1.3 is opt-out with --tls-max-v1.2
// In either case, support both options they are uniformly available.
AddOption("--tls-max-v1.3",
"set default TLS maximum to TLSv1.3 (default: TLSv1.3)",
&EnvironmentOptions::tls_max_v1_3,
kAllowedInEnvironment);
}
PerIsolateOptionsParser::PerIsolateOptionsParser(
const EnvironmentOptionsParser& eop) {
AddOption("--track-heap-objects",
"track heap object allocations for heap snapshots",
&PerIsolateOptions::track_heap_objects,
kAllowedInEnvironment);
AddOption("--node-snapshot",
"", // It's a debug-only option.
&PerIsolateOptions::node_snapshot,
kAllowedInEnvironment);
// Explicitly add some V8 flags to mark them as allowed in NODE_OPTIONS.
AddOption("--abort-on-uncaught-exception",
"aborting instead of exiting causes a core file to be generated "
"for analysis",
V8Option{},
kAllowedInEnvironment);
AddOption("--interpreted-frames-native-stack",
"help system profilers to translate JavaScript interpreted frames",
V8Option{}, kAllowedInEnvironment);
AddOption("--max-old-space-size", "", V8Option{}, kAllowedInEnvironment);
AddOption("--perf-basic-prof", "", V8Option{}, kAllowedInEnvironment);
AddOption("--perf-basic-prof-only-functions",
"",
V8Option{},
kAllowedInEnvironment);
AddOption("--perf-prof", "", V8Option{}, kAllowedInEnvironment);
AddOption("--perf-prof-unwinding-info",
"",
V8Option{},
kAllowedInEnvironment);
AddOption("--stack-trace-limit", "", V8Option{}, kAllowedInEnvironment);
AddOption("--disallow-code-generation-from-strings",
"disallow eval and friends",
V8Option{},
kAllowedInEnvironment);
AddOption("--huge-max-old-generation-size",
"increase default maximum heap size on machines with 16GB memory "
"or more",
V8Option{},
kAllowedInEnvironment);
AddOption("--jitless",
"disable runtime allocation of executable memory",
V8Option{},
kAllowedInEnvironment);
AddOption("--report-uncaught-exception",
"generate diagnostic report on uncaught exceptions",
&PerIsolateOptions::report_uncaught_exception,
kAllowedInEnvironment);
AddOption("--report-on-signal",
"generate diagnostic report upon receiving signals",
&PerIsolateOptions::report_on_signal,
kAllowedInEnvironment);
AddOption("--report-signal",
"causes diagnostic report to be produced on provided signal,"
" unsupported in Windows. (default: SIGUSR2)",
&PerIsolateOptions::report_signal,
kAllowedInEnvironment);
Implies("--report-signal", "--report-on-signal");
AddOption("--experimental-top-level-await",
"",
&PerIsolateOptions::experimental_top_level_await,
kAllowedInEnvironment);
AddOption("--harmony-top-level-await", "", V8Option{});
Implies("--experimental-top-level-await", "--harmony-top-level-await");
Implies("--harmony-top-level-await", "--experimental-top-level-await");
ImpliesNot("--no-harmony-top-level-await", "--experimental-top-level-await");
Insert(eop, &PerIsolateOptions::get_per_env_options);
}
PerProcessOptionsParser::PerProcessOptionsParser(
const PerIsolateOptionsParser& iop) {
AddOption("--title",
"the process title to use on startup",
&PerProcessOptions::title,
kAllowedInEnvironment);
AddOption("--trace-event-categories",
"comma separated list of trace event categories to record",
&PerProcessOptions::trace_event_categories,
kAllowedInEnvironment);
AddOption("--trace-event-file-pattern",
"Template string specifying the filepath for the trace-events "
"data, it supports ${rotation} and ${pid}.",
&PerProcessOptions::trace_event_file_pattern,
kAllowedInEnvironment);
AddAlias("--trace-events-enabled", {
"--trace-event-categories", "v8,node,node.async_hooks" });
AddOption("--v8-pool-size",
"set V8's thread pool size",
&PerProcessOptions::v8_thread_pool_size,
kAllowedInEnvironment);
AddOption("--zero-fill-buffers",
"automatically zero-fill all newly allocated Buffer and "
"SlowBuffer instances",
&PerProcessOptions::zero_fill_all_buffers,
kAllowedInEnvironment);
AddOption("--debug-arraybuffer-allocations",
"", /* undocumented, only for debugging */
&PerProcessOptions::debug_arraybuffer_allocations,
kAllowedInEnvironment);
AddOption("--disable-proto",
"disable Object.prototype.__proto__",
&PerProcessOptions::disable_proto,
kAllowedInEnvironment);
// 12.x renamed this inadvertently, so alias it for consistency within the
// release line, while using the original name for consistency with older
// release lines.
AddOption("--security-revert", "", &PerProcessOptions::security_reverts);
AddAlias("--security-reverts", "--security-revert");
AddOption("--completion-bash",
"print source-able bash completion script",
&PerProcessOptions::print_bash_completion);
AddOption("--help",
"print node command line options",
&PerProcessOptions::print_help);
AddAlias("-h", "--help");
AddOption(
"--version", "print Node.js version", &PerProcessOptions::print_version);
AddAlias("-v", "--version");
AddOption("--v8-options",
"print V8 command line options",
&PerProcessOptions::print_v8_help);
AddOption("--report-compact",
"output compact single-line JSON",
&PerProcessOptions::report_compact,
kAllowedInEnvironment);
AddOption("--report-dir",
"define custom report pathname."
" (default: current working directory)",
&PerProcessOptions::report_directory,
kAllowedInEnvironment);
AddAlias("--report-directory", "--report-dir");
AddOption("--report-filename",
"define custom report file name."
" (default: YYYYMMDD.HHMMSS.PID.SEQUENCE#.txt)",
&PerProcessOptions::report_filename,
kAllowedInEnvironment);
AddOption("--report-on-fatalerror",
"generate diagnostic report on fatal (internal) errors",
&PerProcessOptions::report_on_fatalerror,
kAllowedInEnvironment);
#ifdef NODE_HAVE_I18N_SUPPORT
AddOption("--icu-data-dir",
"set ICU data load path to dir (overrides NODE_ICU_DATA)"
#ifndef NODE_HAVE_SMALL_ICU
" (note: linked-in ICU data is present)"
#endif
,
&PerProcessOptions::icu_data_dir,
kAllowedInEnvironment);
#endif
#if HAVE_OPENSSL
AddOption("--openssl-config",
"load OpenSSL configuration from the specified file "
"(overrides OPENSSL_CONF)",
&PerProcessOptions::openssl_config,
kAllowedInEnvironment);
AddOption("--tls-cipher-list",
"use an alternative default TLS cipher list",
&PerProcessOptions::tls_cipher_list,
kAllowedInEnvironment);
AddOption("--use-openssl-ca",
"use OpenSSL's default CA store"
#if defined(NODE_OPENSSL_CERT_STORE)
" (default)"
#endif
,
&PerProcessOptions::use_openssl_ca,
kAllowedInEnvironment);
AddOption("--use-bundled-ca",
"use bundled CA store"
#if !defined(NODE_OPENSSL_CERT_STORE)
" (default)"
#endif
,
&PerProcessOptions::use_bundled_ca,
kAllowedInEnvironment);
// Similar to [has_eval_string] above, except that the separation between
// this and use_openssl_ca only exists for option validation after parsing.
// This is not ideal.
AddOption("[ssl_openssl_cert_store]",
"",
&PerProcessOptions::ssl_openssl_cert_store);
Implies("--use-openssl-ca", "[ssl_openssl_cert_store]");
ImpliesNot("--use-bundled-ca", "[ssl_openssl_cert_store]");
AddOption("--enable-fips",
"enable FIPS crypto at startup",
&PerProcessOptions::enable_fips_crypto,
kAllowedInEnvironment);
AddOption("--force-fips",
"force FIPS crypto (cannot be disabled)",
&PerProcessOptions::force_fips_crypto,
kAllowedInEnvironment);
AddOption("--secure-heap",
"total size of the OpenSSL secure heap",
&PerProcessOptions::secure_heap,
kAllowedInEnvironment);
AddOption("--secure-heap-min",
"minimum allocation size from the OpenSSL secure heap",
&PerProcessOptions::secure_heap_min,
kAllowedInEnvironment);
#endif // HAVE_OPENSSL
#if OPENSSL_VERSION_MAJOR >= 3
AddOption("--openssl-legacy-provider",
"enable OpenSSL 3.0 legacy provider",
&PerProcessOptions::openssl_legacy_provider,
kAllowedInEnvironment);
#endif // OPENSSL_VERSION_MAJOR
AddOption("--use-largepages",
"Map the Node.js static code to large pages. Options are "
"'off' (the default value, meaning do not map), "
"'on' (map and ignore failure, reporting it to stderr), "
"or 'silent' (map and silently ignore failure)",
&PerProcessOptions::use_largepages,
kAllowedInEnvironment);
AddOption("--trace-sigint",
"enable printing JavaScript stacktrace on SIGINT",
&PerProcessOptions::trace_sigint,
kAllowedInEnvironment);
Insert(iop, &PerProcessOptions::get_per_isolate_options);
AddOption("--node-memory-debug",
"Run with extra debug checks for memory leaks in Node.js itself",
NoOp{}, kAllowedInEnvironment);
Implies("--node-memory-debug", "--debug-arraybuffer-allocations");
Implies("--node-memory-debug", "--verify-base-objects");
}
inline std::string RemoveBrackets(const std::string& host) {
if (!host.empty() && host.front() == '[' && host.back() == ']')
return host.substr(1, host.size() - 2);
else
return host;
}
inline int ParseAndValidatePort(const std::string& port,
std::vector<std::string>* errors) {
char* endptr;
errno = 0;
const unsigned long result = // NOLINT(runtime/int)
strtoul(port.c_str(), &endptr, 10);
if (errno != 0 || *endptr != '\0'||
(result != 0 && result < 1024) || result > 65535) {
errors->push_back(" must be 0 or in range 1024 to 65535.");
}
return static_cast<int>(result);
}
HostPort SplitHostPort(const std::string& arg,
std::vector<std::string>* errors) {
// remove_brackets only works if no port is specified
// so if it has an effect only an IPv6 address was specified.
std::string host = RemoveBrackets(arg);
if (host.length() < arg.length())
return HostPort{host, DebugOptions::kDefaultInspectorPort};
size_t colon = arg.rfind(':');
if (colon == std::string::npos) {
// Either a port number or a host name. Assume that
// if it's not all decimal digits, it's a host name.
for (char c : arg) {
if (c < '0' || c > '9') {
return HostPort{arg, DebugOptions::kDefaultInspectorPort};
}
}
return HostPort { "", ParseAndValidatePort(arg, errors) };
}
// Host and port found:
return HostPort { RemoveBrackets(arg.substr(0, colon)),
ParseAndValidatePort(arg.substr(colon + 1), errors) };
}
std::string GetBashCompletion() {
Mutex::ScopedLock lock(per_process::cli_options_mutex);
const auto& parser = _ppop_instance;
std::ostringstream out;
out << "_node_complete() {\n"
" local cur_word options\n"
" cur_word=\"${COMP_WORDS[COMP_CWORD]}\"\n"
" if [[ \"${cur_word}\" == -* ]] ; then\n"
" COMPREPLY=( $(compgen -W '";
for (const auto& item : parser.options_) {
if (item.first[0] != '[') {
out << item.first << " ";
}
}
for (const auto& item : parser.aliases_) {
if (item.first[0] != '[') {
out << item.first << " ";
}
}
if (parser.aliases_.size() > 0) {
out.seekp(-1, out.cur); // Strip the trailing space
}
out << "' -- \"${cur_word}\") )\n"
" return 0\n"
" else\n"
" COMPREPLY=( $(compgen -f \"${cur_word}\") )\n"
" return 0\n"
" fi\n"
"}\n"
"complete -o filenames -o nospace -o bashdefault "
"-F _node_complete node node_g";
return out.str();
}
// Return a map containing all the options and their metadata as well
// as the aliases
void GetCLIOptions(const FunctionCallbackInfo<Value>& args) {
Mutex::ScopedLock lock(per_process::cli_options_mutex);
Environment* env = Environment::GetCurrent(args);
if (!env->has_run_bootstrapping_code()) {
// No code because this is an assertion.
return env->ThrowError(
"Should not query options before bootstrapping is done");
}
env->set_has_serialized_options(true);
Isolate* isolate = env->isolate();
Local<Context> context = env->context();
// Temporarily act as if the current Environment's/IsolateData's options were
// the default options, i.e. like they are the ones we'd access for global
// options parsing, so that all options are available from the main parser.
auto original_per_isolate = per_process::cli_options->per_isolate;
per_process::cli_options->per_isolate = env->isolate_data()->options();
auto original_per_env = per_process::cli_options->per_isolate->per_env;
per_process::cli_options->per_isolate->per_env = env->options();
auto on_scope_leave = OnScopeLeave([&]() {
per_process::cli_options->per_isolate->per_env = original_per_env;
per_process::cli_options->per_isolate = original_per_isolate;
});
Local<Map> options = Map::New(isolate);
if (options
->SetPrototype(context, env->primordials_safe_map_prototype_object())
.IsNothing()) {
return;
}
for (const auto& item : _ppop_instance.options_) {
Local<Value> value;
const auto& option_info = item.second;
auto field = option_info.field;
PerProcessOptions* opts = per_process::cli_options.get();
switch (option_info.type) {
case kNoOp:
case kV8Option:
// Special case for --abort-on-uncaught-exception which is also
// respected by Node.js internals
if (item.first == "--abort-on-uncaught-exception") {
value = Boolean::New(
isolate, original_per_env->abort_on_uncaught_exception);
} else {
value = Undefined(isolate);
}
break;
case kBoolean:
value = Boolean::New(isolate,
*_ppop_instance.Lookup<bool>(field, opts));
break;
case kInteger:
value = Number::New(
isolate,
static_cast<double>(*_ppop_instance.Lookup<int64_t>(field, opts)));
break;
case kUInteger:
value = Number::New(
isolate,
static_cast<double>(*_ppop_instance.Lookup<uint64_t>(field, opts)));
break;
case kString:
if (!ToV8Value(context,
*_ppop_instance.Lookup<std::string>(field, opts))
.ToLocal(&value)) {
return;