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Commit | Line | Data |
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e143e9d8 DM |
1 | package PVE::CLIHandler; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
d8053c08 | 5 | use Data::Dumper; |
e143e9d8 | 6 | |
93ddd7bc | 7 | use PVE::SafeSyslog; |
e143e9d8 DM |
8 | use PVE::Exception qw(raise raise_param_exc); |
9 | use PVE::RESTHandler; | |
10 | use PVE::PodParser; | |
11 | ||
12 | use base qw(PVE::RESTHandler); | |
13 | ||
14 | my $cmddef; | |
15 | my $exename; | |
16 | ||
17 | my $expand_command_name = sub { | |
18 | my ($def, $cmd) = @_; | |
19 | ||
20 | if (!$def->{$cmd}) { | |
21 | my $expanded; | |
22 | for my $k (keys(%$def)) { | |
23 | if ($k =~ m/^$cmd/) { | |
24 | if ($expanded) { | |
25 | $expanded = undef; # more than one match | |
26 | last; | |
27 | } else { | |
28 | $expanded = $k; | |
29 | } | |
30 | } | |
31 | } | |
32 | $cmd = $expanded if $expanded; | |
33 | } | |
34 | return $cmd; | |
35 | }; | |
36 | ||
edf3d572 DM |
37 | my $complete_command_names = sub { |
38 | my $res = []; | |
39 | ||
40 | return if ref($cmddef) ne 'HASH'; | |
41 | ||
42 | foreach my $cmd (keys %$cmddef) { | |
43 | next if $cmd eq 'help'; | |
44 | push @$res, $cmd; | |
45 | } | |
46 | ||
47 | return $res; | |
48 | }; | |
49 | ||
e143e9d8 DM |
50 | __PACKAGE__->register_method ({ |
51 | name => 'help', | |
52 | path => 'help', | |
53 | method => 'GET', | |
54 | description => "Get help about specified command.", | |
55 | parameters => { | |
56 | additionalProperties => 0, | |
57 | properties => { | |
58 | cmd => { | |
59 | description => "Command name", | |
60 | type => 'string', | |
61 | optional => 1, | |
edf3d572 | 62 | completion => $complete_command_names, |
e143e9d8 DM |
63 | }, |
64 | verbose => { | |
65 | description => "Verbose output format.", | |
66 | type => 'boolean', | |
67 | optional => 1, | |
68 | }, | |
69 | }, | |
70 | }, | |
71 | returns => { type => 'null' }, | |
72 | ||
73 | code => sub { | |
74 | my ($param) = @_; | |
75 | ||
76 | die "not initialized" if !($cmddef && $exename); | |
77 | ||
78 | my $cmd = $param->{cmd}; | |
79 | ||
80 | my $verbose = defined($cmd) && $cmd; | |
81 | $verbose = $param->{verbose} if defined($param->{verbose}); | |
82 | ||
83 | if (!$cmd) { | |
84 | if ($verbose) { | |
85 | print_usage_verbose(); | |
86 | } else { | |
87 | print_usage_short(\*STDOUT); | |
88 | } | |
89 | return undef; | |
90 | } | |
91 | ||
92 | $cmd = &$expand_command_name($cmddef, $cmd); | |
93 | ||
94 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd} || []}; | |
95 | ||
96 | raise_param_exc({ cmd => "no such command '$cmd'"}) if !$class; | |
97 | ||
98 | ||
99 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, $verbose ? 'full' : 'short'); | |
100 | if ($verbose) { | |
101 | print "$str\n"; | |
102 | } else { | |
103 | print "USAGE: $str\n"; | |
104 | } | |
105 | ||
106 | return undef; | |
107 | ||
108 | }}); | |
109 | ||
7fe1f565 DM |
110 | sub print_simple_pod_manpage { |
111 | my ($podfn, $class, $name, $arg_param, $uri_param) = @_; | |
112 | ||
113 | my $synopsis = " $name help\n\n"; | |
114 | my $str = $class->usage_str($name, $name, $arg_param, $uri_param, 'long'); | |
115 | $str =~ s/^USAGE://; | |
116 | $str =~ s/\n/\n /g; | |
117 | $synopsis .= $str; | |
118 | ||
119 | my $parser = PVE::PodParser->new(); | |
120 | $parser->{include}->{synopsis} = $synopsis; | |
121 | $parser->parse_from_file($podfn); | |
122 | } | |
123 | ||
e143e9d8 DM |
124 | sub print_pod_manpage { |
125 | my ($podfn) = @_; | |
126 | ||
127 | die "not initialized" if !($cmddef && $exename); | |
128 | die "no pod file specified" if !$podfn; | |
129 | ||
130 | my $synopsis = ""; | |
131 | ||
132 | $synopsis .= " $exename <COMMAND> [ARGS] [OPTIONS]\n\n"; | |
133 | ||
134 | my $style = 'full'; # or should we use 'short'? | |
135 | my $oldclass; | |
136 | foreach my $cmd (sorted_commands()) { | |
137 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
138 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, | |
139 | $uri_param, $style); | |
140 | $str =~ s/^USAGE: //; | |
141 | ||
142 | $synopsis .= "\n" if $oldclass && $oldclass ne $class; | |
143 | $str =~ s/\n/\n /g; | |
144 | $synopsis .= " $str\n\n"; | |
145 | $oldclass = $class; | |
146 | } | |
147 | ||
148 | $synopsis .= "\n"; | |
149 | ||
150 | my $parser = PVE::PodParser->new(); | |
151 | $parser->{include}->{synopsis} = $synopsis; | |
152 | $parser->parse_from_file($podfn); | |
153 | } | |
154 | ||
155 | sub print_usage_verbose { | |
156 | ||
157 | die "not initialized" if !($cmddef && $exename); | |
158 | ||
159 | print "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n\n"; | |
160 | ||
161 | foreach my $cmd (sort keys %$cmddef) { | |
162 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
163 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, 'full'); | |
164 | print "$str\n\n"; | |
165 | } | |
166 | } | |
167 | ||
168 | sub sorted_commands { | |
169 | return sort { ($cmddef->{$a}->[0] cmp $cmddef->{$b}->[0]) || ($a cmp $b)} keys %$cmddef; | |
170 | } | |
171 | ||
172 | sub print_usage_short { | |
173 | my ($fd, $msg) = @_; | |
174 | ||
175 | die "not initialized" if !($cmddef && $exename); | |
176 | ||
177 | print $fd "ERROR: $msg\n" if $msg; | |
178 | print $fd "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n"; | |
179 | ||
180 | my $oldclass; | |
181 | foreach my $cmd (sorted_commands()) { | |
182 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
183 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, 'short'); | |
184 | print $fd "\n" if $oldclass && $oldclass ne $class; | |
185 | print $fd " $str"; | |
186 | $oldclass = $class; | |
187 | } | |
188 | } | |
189 | ||
d8053c08 DM |
190 | my $print_bash_completion = sub { |
191 | my ($cmddef, $simple_cmd, $bash_command, $cur, $prev) = @_; | |
192 | ||
193 | my $debug = 0; | |
194 | ||
195 | return if !(defined($cur) && defined($prev) && defined($bash_command)); | |
196 | return if !defined($ENV{COMP_LINE}); | |
197 | return if !defined($ENV{COMP_POINT}); | |
198 | ||
199 | my $cmdline = substr($ENV{COMP_LINE}, 0, $ENV{COMP_POINT}); | |
200 | print STDERR "\nCMDLINE: $ENV{COMP_LINE}\n" if $debug; | |
201 | ||
58d9e664 DM |
202 | my $args = PVE::Tools::split_args($cmdline); |
203 | my $pos = scalar(@$args) - 2; | |
d8053c08 DM |
204 | $pos += 1 if $cmdline =~ m/\s+$/; |
205 | ||
206 | print STDERR "CMDLINE:$pos:$cmdline\n" if $debug; | |
207 | ||
208 | return if $pos < 0; | |
209 | ||
210 | my $print_result = sub { | |
211 | foreach my $p (@_) { | |
212 | print "$p\n" if $p =~ m/^$cur/; | |
213 | } | |
214 | }; | |
215 | ||
216 | my $cmd; | |
217 | if ($simple_cmd) { | |
218 | $cmd = $simple_cmd; | |
219 | } else { | |
220 | if ($pos == 0) { | |
221 | &$print_result(keys %$cmddef); | |
222 | return; | |
223 | } | |
58d9e664 | 224 | $cmd = $args->[1]; |
d8053c08 DM |
225 | } |
226 | ||
227 | my $def = $cmddef->{$cmd}; | |
228 | return if !$def; | |
229 | ||
230 | print STDERR "CMDLINE1:$pos:$cmdline\n" if $debug; | |
231 | ||
232 | my $skip_param = {}; | |
233 | ||
234 | my ($class, $name, $arg_param, $uri_param) = @$def; | |
235 | $arg_param //= []; | |
236 | $uri_param //= {}; | |
237 | ||
238 | map { $skip_param->{$_} = 1; } @$arg_param; | |
239 | map { $skip_param->{$_} = 1; } keys %$uri_param; | |
240 | ||
241 | my $fpcount = scalar(@$arg_param); | |
242 | ||
243 | my $info = $class->map_method_by_name($name); | |
244 | ||
245 | my $schema = $info->{parameters}; | |
246 | my $prop = $schema->{properties}; | |
247 | ||
248 | my $print_parameter_completion = sub { | |
249 | my ($pname) = @_; | |
250 | my $d = $prop->{$pname}; | |
251 | if ($d->{completion}) { | |
252 | my $vt = ref($d->{completion}); | |
253 | if ($vt eq 'CODE') { | |
58d9e664 | 254 | my $res = $d->{completion}->($cmd, $pname, $cur, $args); |
d8053c08 DM |
255 | &$print_result(@$res); |
256 | } | |
257 | } elsif ($d->{type} eq 'boolean') { | |
258 | &$print_result('0', '1'); | |
259 | } elsif ($d->{enum}) { | |
260 | &$print_result(@{$d->{enum}}); | |
261 | } | |
262 | }; | |
263 | ||
264 | # positional arguments | |
265 | $pos += 1 if $simple_cmd; | |
266 | if ($fpcount && $pos <= $fpcount) { | |
267 | my $pname = $arg_param->[$pos -1]; | |
268 | &$print_parameter_completion($pname); | |
269 | return; | |
270 | } | |
271 | ||
272 | my @option_list = (); | |
273 | foreach my $key (keys %$prop) { | |
274 | next if $skip_param->{$key}; | |
275 | push @option_list, "--$key"; | |
276 | } | |
277 | ||
278 | if ($cur =~ m/^-/) { | |
279 | &$print_result(@option_list); | |
280 | return; | |
281 | } | |
282 | ||
283 | if ($prev =~ m/^--?(.+)$/ && $prop->{$1}) { | |
284 | my $pname = $1; | |
285 | &$print_parameter_completion($pname); | |
286 | return; | |
287 | } | |
288 | ||
289 | &$print_result(@option_list); | |
290 | }; | |
291 | ||
1f130ba6 DM |
292 | sub verify_api { |
293 | my ($class) = @_; | |
294 | ||
295 | # simply verify all registered methods | |
296 | PVE::RESTHandler::validate_method_schemas(); | |
297 | } | |
298 | ||
8f3712f8 DM |
299 | my $get_exe_name = sub { |
300 | my ($class) = @_; | |
301 | ||
302 | my $name = $class; | |
303 | $name =~ s/^.*:://; | |
304 | $name =~ s/_/-/g; | |
305 | ||
306 | return $name; | |
307 | }; | |
308 | ||
c45707a0 DM |
309 | sub generate_bash_completions { |
310 | my ($class) = @_; | |
311 | ||
312 | # generate bash completion config | |
313 | ||
8f3712f8 | 314 | $exename = &$get_exe_name($class); |
c45707a0 DM |
315 | |
316 | print <<__EOD__; | |
317 | # $exename bash completion | |
318 | ||
319 | # see http://tiswww.case.edu/php/chet/bash/FAQ | |
320 | # and __ltrim_colon_completions() in /usr/share/bash-completion/bash_completion | |
321 | # this modifies global var, but I found no better way | |
322 | COMP_WORDBREAKS=\${COMP_WORDBREAKS//:} | |
323 | ||
324 | complete -C '$exename bashcomplete' $exename | |
325 | __EOD__ | |
326 | } | |
327 | ||
7fe1f565 | 328 | sub find_cli_class_source { |
8f3712f8 | 329 | my ($name) = @_; |
7fe1f565 DM |
330 | |
331 | my $filename; | |
332 | ||
8f3712f8 DM |
333 | $name =~ s/-/_/g; |
334 | ||
335 | my $cpath = "PVE/CLI/${name}.pm"; | |
336 | my $spath = "PVE/Service/${name}.pm"; | |
7fe1f565 | 337 | foreach my $p (@INC) { |
edf3d572 DM |
338 | foreach my $s (($cpath, $spath)) { |
339 | my $testfn = "$p/$s"; | |
340 | if (-f $testfn) { | |
341 | $filename = $testfn; | |
342 | last; | |
343 | } | |
7fe1f565 | 344 | } |
edf3d572 | 345 | last if defined($filename); |
7fe1f565 DM |
346 | } |
347 | ||
348 | return $filename; | |
349 | } | |
350 | ||
1f130ba6 DM |
351 | sub generate_pod_manpage { |
352 | my ($class, $podfn) = @_; | |
353 | ||
8f3712f8 | 354 | $exename = &$get_exe_name($class); |
1f130ba6 | 355 | |
7fe1f565 | 356 | $podfn = find_cli_class_source($exename) if !defined($podfn); |
1f130ba6 DM |
357 | |
358 | die "unable to find source for class '$class'" if !$podfn; | |
359 | ||
7fe1f565 DM |
360 | no strict 'refs'; |
361 | my $def = ${"${class}::cmddef"}; | |
362 | ||
bb958629 | 363 | if (ref($def) eq 'ARRAY') { |
7fe1f565 DM |
364 | print_simple_pod_manpage($podfn, @$def); |
365 | } else { | |
366 | $cmddef = $def; | |
edf3d572 DM |
367 | |
368 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; | |
369 | ||
7fe1f565 DM |
370 | print_pod_manpage($podfn); |
371 | } | |
1f130ba6 DM |
372 | } |
373 | ||
edf3d572 | 374 | sub run_cli { |
7fe1f565 | 375 | my ($class, $pwcallback, $podfn, $preparefunc) = @_; |
93ddd7bc DM |
376 | |
377 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; | |
378 | ||
8f3712f8 | 379 | $exename = &$get_exe_name($class); |
93ddd7bc DM |
380 | |
381 | initlog($exename); | |
382 | ||
93ddd7bc | 383 | |
2a8ced7b DM |
384 | if ($class !~ m/^PVE::Service::/) { |
385 | die "please run as root\n" if $> != 0; | |
93ddd7bc | 386 | |
2a8ced7b DM |
387 | PVE::INotify::inotify_init(); |
388 | ||
389 | my $rpcenv = PVE::RPCEnvironment->init('cli'); | |
390 | $rpcenv->init_request(); | |
391 | $rpcenv->set_language($ENV{LANG}); | |
392 | $rpcenv->set_user('root@pam'); | |
393 | } | |
93ddd7bc | 394 | |
7fe1f565 DM |
395 | no strict 'refs'; |
396 | my $def = ${"${class}::cmddef"}; | |
93ddd7bc | 397 | |
7fe1f565 DM |
398 | if (ref($def) eq 'ARRAY') { |
399 | handle_simple_cmd($def, \@ARGV, $pwcallback, $podfn, $preparefunc); | |
400 | } else { | |
401 | $cmddef = $def; | |
402 | my $cmd = shift @ARGV; | |
403 | handle_cmd($cmddef, $exename, $cmd, \@ARGV, $pwcallback, $podfn, $preparefunc); | |
404 | } | |
93ddd7bc DM |
405 | |
406 | exit 0; | |
407 | } | |
408 | ||
e143e9d8 | 409 | sub handle_cmd { |
8e3e9929 | 410 | my ($def, $cmdname, $cmd, $args, $pwcallback, $podfn, $preparefunc) = @_; |
e143e9d8 DM |
411 | |
412 | $cmddef = $def; | |
413 | $exename = $cmdname; | |
414 | ||
415 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; | |
416 | ||
417 | if (!$cmd) { | |
418 | print_usage_short (\*STDERR, "no command specified"); | |
419 | exit (-1); | |
420 | } elsif ($cmd eq 'verifyapi') { | |
421 | PVE::RESTHandler::validate_method_schemas(); | |
422 | return; | |
423 | } elsif ($cmd eq 'printmanpod') { | |
edf3d572 | 424 | $podfn = find_cli_class_source($exename) if !defined($podfn); |
e143e9d8 DM |
425 | print_pod_manpage($podfn); |
426 | return; | |
d8053c08 DM |
427 | } elsif ($cmd eq 'bashcomplete') { |
428 | &$print_bash_completion($cmddef, 0, @$args); | |
429 | return; | |
e143e9d8 DM |
430 | } |
431 | ||
8e3e9929 WB |
432 | &$preparefunc() if $preparefunc; |
433 | ||
e143e9d8 DM |
434 | $cmd = &$expand_command_name($cmddef, $cmd); |
435 | ||
436 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef->{$cmd} || []}; | |
437 | ||
438 | if (!$class) { | |
439 | print_usage_short (\*STDERR, "unknown command '$cmd'"); | |
440 | exit (-1); | |
441 | } | |
442 | ||
443 | my $prefix = "$exename $cmd"; | |
444 | my $res = $class->cli_handler($prefix, $name, \@ARGV, $arg_param, $uri_param, $pwcallback); | |
2026f4b5 DM |
445 | |
446 | &$outsub($res) if $outsub; | |
447 | } | |
448 | ||
449 | sub handle_simple_cmd { | |
7fe1f565 | 450 | my ($def, $args, $pwcallback, $podfn, $preparefunc) = @_; |
2026f4b5 DM |
451 | |
452 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$def}; | |
453 | die "no class specified" if !$class; | |
454 | ||
d8053c08 | 455 | if (scalar(@$args) >= 1) { |
2026f4b5 DM |
456 | if ($args->[0] eq 'help') { |
457 | my $str = "USAGE: $name help\n"; | |
458 | $str .= $class->usage_str($name, $name, $arg_param, $uri_param, 'long'); | |
459 | print STDERR "$str\n\n"; | |
460 | return; | |
d8053c08 DM |
461 | } elsif ($args->[0] eq 'bashcomplete') { |
462 | shift @$args; | |
463 | &$print_bash_completion({ $name => $def }, $name, @$args); | |
464 | return; | |
2026f4b5 DM |
465 | } elsif ($args->[0] eq 'verifyapi') { |
466 | PVE::RESTHandler::validate_method_schemas(); | |
467 | return; | |
468 | } elsif ($args->[0] eq 'printmanpod') { | |
7fe1f565 DM |
469 | $podfn = find_cli_class_source($name) if !defined($podfn); |
470 | print_simple_pod_manpage($podfn, @$def); | |
2026f4b5 DM |
471 | return; |
472 | } | |
e143e9d8 | 473 | } |
2026f4b5 | 474 | |
7fe1f565 DM |
475 | &$preparefunc() if $preparefunc; |
476 | ||
2026f4b5 DM |
477 | my $res = $class->cli_handler($name, $name, \@ARGV, $arg_param, $uri_param, $pwcallback); |
478 | ||
479 | &$outsub($res) if $outsub; | |
e143e9d8 DM |
480 | } |
481 | ||
482 | 1; |