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Commit | Line | Data |
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e143e9d8 DM |
1 | package PVE::CLIHandler; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
93ddd7bc | 6 | use PVE::SafeSyslog; |
e143e9d8 DM |
7 | use PVE::Exception qw(raise raise_param_exc); |
8 | use PVE::RESTHandler; | |
881eb755 | 9 | use PVE::INotify; |
e143e9d8 DM |
10 | |
11 | use base qw(PVE::RESTHandler); | |
12 | ||
13 | my $cmddef; | |
14 | my $exename; | |
891b798d | 15 | my $cli_handler_class; |
e143e9d8 | 16 | |
d204696c TL |
17 | my $assert_initialized = sub { |
18 | my @caller = caller; | |
19 | die "$caller[0]:$caller[2] - not initialized\n" | |
20 | if !($cmddef && $exename && $cli_handler_class); | |
21 | }; | |
22 | ||
918140af TL |
23 | my $abort = sub { |
24 | my ($reason, $cmd) = @_; | |
25 | print_usage_short (\*STDERR, $reason, $cmd); | |
26 | exit (-1); | |
27 | }; | |
28 | ||
e143e9d8 DM |
29 | my $expand_command_name = sub { |
30 | my ($def, $cmd) = @_; | |
31 | ||
32 | if (!$def->{$cmd}) { | |
7bac844e TL |
33 | my @expanded = grep { /^\Q$cmd\E/ } keys %$def; |
34 | return $expanded[0] if scalar(@expanded) == 1; # enforce exact match | |
e143e9d8 DM |
35 | } |
36 | return $cmd; | |
37 | }; | |
38 | ||
edf3d572 | 39 | my $complete_command_names = sub { |
7bac844e | 40 | return [ sort keys %$cmddef ]; |
edf3d572 DM |
41 | }; |
42 | ||
e143e9d8 | 43 | __PACKAGE__->register_method ({ |
3ef20687 | 44 | name => 'help', |
e143e9d8 DM |
45 | path => 'help', |
46 | method => 'GET', | |
47 | description => "Get help about specified command.", | |
48 | parameters => { | |
3ef20687 | 49 | additionalProperties => 0, |
e143e9d8 DM |
50 | properties => { |
51 | cmd => { | |
52 | description => "Command name", | |
53 | type => 'string', | |
54 | optional => 1, | |
edf3d572 | 55 | completion => $complete_command_names, |
e143e9d8 DM |
56 | }, |
57 | verbose => { | |
58 | description => "Verbose output format.", | |
59 | type => 'boolean', | |
60 | optional => 1, | |
61 | }, | |
62 | }, | |
63 | }, | |
64 | returns => { type => 'null' }, | |
3ef20687 | 65 | |
e143e9d8 DM |
66 | code => sub { |
67 | my ($param) = @_; | |
68 | ||
d204696c | 69 | $assert_initialized->(); |
e143e9d8 DM |
70 | |
71 | my $cmd = $param->{cmd}; | |
72 | ||
73 | my $verbose = defined($cmd) && $cmd; | |
74 | $verbose = $param->{verbose} if defined($param->{verbose}); | |
75 | ||
76 | if (!$cmd) { | |
77 | if ($verbose) { | |
78 | print_usage_verbose(); | |
3ef20687 | 79 | } else { |
e143e9d8 DM |
80 | print_usage_short(\*STDOUT); |
81 | } | |
82 | return undef; | |
83 | } | |
84 | ||
85 | $cmd = &$expand_command_name($cmddef, $cmd); | |
86 | ||
87 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd} || []}; | |
88 | ||
89 | raise_param_exc({ cmd => "no such command '$cmd'"}) if !$class; | |
90 | ||
891b798d | 91 | my $pwcallback = $cli_handler_class->can('read_password'); |
4845032a | 92 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
e143e9d8 | 93 | |
891b798d | 94 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, |
4845032a FG |
95 | $verbose ? 'full' : 'short', $pwcallback, |
96 | $stringfilemap); | |
e143e9d8 DM |
97 | if ($verbose) { |
98 | print "$str\n"; | |
99 | } else { | |
100 | print "USAGE: $str\n"; | |
101 | } | |
102 | ||
103 | return undef; | |
104 | ||
105 | }}); | |
106 | ||
0a5a1eee | 107 | sub print_simple_asciidoc_synopsis { |
fe3f1fde DM |
108 | my ($class, $name, $arg_param, $uri_param) = @_; |
109 | ||
d204696c | 110 | $assert_initialized->(); |
fe3f1fde DM |
111 | |
112 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 113 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
fe3f1fde DM |
114 | |
115 | my $synopsis = "*${name}* `help`\n\n"; | |
116 | ||
4845032a FG |
117 | $synopsis .= $class->usage_str($name, $name, $arg_param, $uri_param, |
118 | 'asciidoc', $pwcallback, $stringfilemap); | |
fe3f1fde DM |
119 | |
120 | return $synopsis; | |
121 | } | |
122 | ||
0a5a1eee | 123 | sub print_asciidoc_synopsis { |
fe3f1fde | 124 | |
d204696c | 125 | $assert_initialized->(); |
fe3f1fde DM |
126 | |
127 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 128 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
fe3f1fde DM |
129 | |
130 | my $synopsis = ""; | |
131 | ||
132 | $synopsis .= "*${exename}* `<COMMAND> [ARGS] [OPTIONS]`\n\n"; | |
133 | ||
134 | my $oldclass; | |
135 | foreach my $cmd (sort keys %$cmddef) { | |
136 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
137 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, | |
4845032a FG |
138 | $uri_param, 'asciidoc', $pwcallback, |
139 | $stringfilemap); | |
fe3f1fde DM |
140 | $synopsis .= "\n" if $oldclass && $oldclass ne $class; |
141 | ||
142 | $synopsis .= "$str\n\n"; | |
143 | $oldclass = $class; | |
144 | } | |
145 | ||
146 | $synopsis .= "\n"; | |
147 | ||
148 | return $synopsis; | |
149 | } | |
150 | ||
e143e9d8 DM |
151 | sub print_usage_verbose { |
152 | ||
d204696c | 153 | $assert_initialized->(); |
891b798d DM |
154 | |
155 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 156 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
e143e9d8 DM |
157 | |
158 | print "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n\n"; | |
159 | ||
160 | foreach my $cmd (sort keys %$cmddef) { | |
161 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
891b798d | 162 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, |
4845032a | 163 | 'full', $pwcallback, $stringfilemap); |
e143e9d8 DM |
164 | print "$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 | ||
d204696c | 175 | $assert_initialized->(); |
891b798d DM |
176 | |
177 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 178 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
e143e9d8 DM |
179 | |
180 | print $fd "ERROR: $msg\n" if $msg; | |
181 | print $fd "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n"; | |
182 | ||
183 | my $oldclass; | |
184 | foreach my $cmd (sorted_commands()) { | |
185 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
4845032a | 186 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, 'short', $pwcallback, $stringfilemap); |
e143e9d8 DM |
187 | print $fd "\n" if $oldclass && $oldclass ne $class; |
188 | print $fd " $str"; | |
189 | $oldclass = $class; | |
190 | } | |
191 | } | |
192 | ||
d8053c08 | 193 | my $print_bash_completion = sub { |
57e67ea3 | 194 | my ($simple_cmd, $bash_command, $cur, $prev) = @_; |
d8053c08 DM |
195 | |
196 | my $debug = 0; | |
197 | ||
198 | return if !(defined($cur) && defined($prev) && defined($bash_command)); | |
199 | return if !defined($ENV{COMP_LINE}); | |
200 | return if !defined($ENV{COMP_POINT}); | |
201 | ||
202 | my $cmdline = substr($ENV{COMP_LINE}, 0, $ENV{COMP_POINT}); | |
203 | print STDERR "\nCMDLINE: $ENV{COMP_LINE}\n" if $debug; | |
204 | ||
58d9e664 DM |
205 | my $args = PVE::Tools::split_args($cmdline); |
206 | my $pos = scalar(@$args) - 2; | |
d8053c08 DM |
207 | $pos += 1 if $cmdline =~ m/\s+$/; |
208 | ||
209 | print STDERR "CMDLINE:$pos:$cmdline\n" if $debug; | |
210 | ||
211 | return if $pos < 0; | |
212 | ||
213 | my $print_result = sub { | |
214 | foreach my $p (@_) { | |
215 | print "$p\n" if $p =~ m/^$cur/; | |
216 | } | |
217 | }; | |
218 | ||
219 | my $cmd; | |
220 | if ($simple_cmd) { | |
221 | $cmd = $simple_cmd; | |
222 | } else { | |
223 | if ($pos == 0) { | |
224 | &$print_result(keys %$cmddef); | |
225 | return; | |
226 | } | |
58d9e664 | 227 | $cmd = $args->[1]; |
d8053c08 DM |
228 | } |
229 | ||
230 | my $def = $cmddef->{$cmd}; | |
231 | return if !$def; | |
232 | ||
233 | print STDERR "CMDLINE1:$pos:$cmdline\n" if $debug; | |
234 | ||
235 | my $skip_param = {}; | |
236 | ||
237 | my ($class, $name, $arg_param, $uri_param) = @$def; | |
238 | $arg_param //= []; | |
239 | $uri_param //= {}; | |
240 | ||
d90a2fd0 DM |
241 | $arg_param = [ $arg_param ] if !ref($arg_param); |
242 | ||
d8053c08 DM |
243 | map { $skip_param->{$_} = 1; } @$arg_param; |
244 | map { $skip_param->{$_} = 1; } keys %$uri_param; | |
245 | ||
246 | my $fpcount = scalar(@$arg_param); | |
247 | ||
248 | my $info = $class->map_method_by_name($name); | |
249 | ||
250 | my $schema = $info->{parameters}; | |
251 | my $prop = $schema->{properties}; | |
252 | ||
253 | my $print_parameter_completion = sub { | |
254 | my ($pname) = @_; | |
255 | my $d = $prop->{$pname}; | |
256 | if ($d->{completion}) { | |
257 | my $vt = ref($d->{completion}); | |
258 | if ($vt eq 'CODE') { | |
58d9e664 | 259 | my $res = $d->{completion}->($cmd, $pname, $cur, $args); |
d8053c08 DM |
260 | &$print_result(@$res); |
261 | } | |
262 | } elsif ($d->{type} eq 'boolean') { | |
263 | &$print_result('0', '1'); | |
264 | } elsif ($d->{enum}) { | |
265 | &$print_result(@{$d->{enum}}); | |
266 | } | |
267 | }; | |
268 | ||
269 | # positional arguments | |
270 | $pos += 1 if $simple_cmd; | |
271 | if ($fpcount && $pos <= $fpcount) { | |
272 | my $pname = $arg_param->[$pos -1]; | |
273 | &$print_parameter_completion($pname); | |
274 | return; | |
275 | } | |
276 | ||
277 | my @option_list = (); | |
278 | foreach my $key (keys %$prop) { | |
279 | next if $skip_param->{$key}; | |
280 | push @option_list, "--$key"; | |
281 | } | |
282 | ||
283 | if ($cur =~ m/^-/) { | |
284 | &$print_result(@option_list); | |
285 | return; | |
286 | } | |
287 | ||
288 | if ($prev =~ m/^--?(.+)$/ && $prop->{$1}) { | |
289 | my $pname = $1; | |
290 | &$print_parameter_completion($pname); | |
291 | return; | |
292 | } | |
293 | ||
294 | &$print_result(@option_list); | |
295 | }; | |
296 | ||
1f130ba6 DM |
297 | sub verify_api { |
298 | my ($class) = @_; | |
299 | ||
300 | # simply verify all registered methods | |
301 | PVE::RESTHandler::validate_method_schemas(); | |
302 | } | |
303 | ||
8f3712f8 DM |
304 | my $get_exe_name = sub { |
305 | my ($class) = @_; | |
3ef20687 | 306 | |
8f3712f8 DM |
307 | my $name = $class; |
308 | $name =~ s/^.*:://; | |
309 | $name =~ s/_/-/g; | |
310 | ||
311 | return $name; | |
312 | }; | |
313 | ||
c45707a0 DM |
314 | sub generate_bash_completions { |
315 | my ($class) = @_; | |
316 | ||
317 | # generate bash completion config | |
318 | ||
8f3712f8 | 319 | $exename = &$get_exe_name($class); |
c45707a0 DM |
320 | |
321 | print <<__EOD__; | |
322 | # $exename bash completion | |
323 | ||
324 | # see http://tiswww.case.edu/php/chet/bash/FAQ | |
325 | # and __ltrim_colon_completions() in /usr/share/bash-completion/bash_completion | |
326 | # this modifies global var, but I found no better way | |
327 | COMP_WORDBREAKS=\${COMP_WORDBREAKS//:} | |
328 | ||
e4a1d8e2 | 329 | complete -o default -C '$exename bashcomplete' $exename |
c45707a0 DM |
330 | __EOD__ |
331 | } | |
332 | ||
fe3f1fde DM |
333 | sub generate_asciidoc_synopsys { |
334 | my ($class) = @_; | |
0a5a1eee FG |
335 | $class->generate_asciidoc_synopsis(); |
336 | }; | |
337 | ||
338 | sub generate_asciidoc_synopsis { | |
339 | my ($class) = @_; | |
fe3f1fde DM |
340 | |
341 | $cli_handler_class = $class; | |
342 | ||
343 | $exename = &$get_exe_name($class); | |
344 | ||
345 | no strict 'refs'; | |
346 | my $def = ${"${class}::cmddef"}; | |
57e67ea3 | 347 | $cmddef = $def; |
fe3f1fde DM |
348 | |
349 | if (ref($def) eq 'ARRAY') { | |
0a5a1eee | 350 | print_simple_asciidoc_synopsis(@$def); |
fe3f1fde | 351 | } else { |
fe3f1fde DM |
352 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; |
353 | ||
0a5a1eee | 354 | print_asciidoc_synopsis(); |
fe3f1fde DM |
355 | } |
356 | } | |
357 | ||
7b7f99c9 DM |
358 | # overwrite this if you want to run/setup things early |
359 | sub setup_environment { | |
360 | my ($class) = @_; | |
361 | ||
362 | # do nothing by default | |
363 | } | |
364 | ||
891b798d | 365 | my $handle_cmd = sub { |
57e67ea3 | 366 | my ($args, $pwcallback, $preparefunc, $stringfilemap) = @_; |
e143e9d8 DM |
367 | |
368 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; | |
369 | ||
7b7f99c9 | 370 | |
57e67ea3 | 371 | my $cmd = shift @$args; |
918140af TL |
372 | $abort->("no command specified") if !$cmd; |
373 | ||
374 | # call verifyapi before setup_environment(), don't execute any real code in | |
375 | # this case | |
376 | if ($cmd eq 'verifyapi') { | |
e143e9d8 DM |
377 | PVE::RESTHandler::validate_method_schemas(); |
378 | return; | |
7b7f99c9 DM |
379 | } |
380 | ||
381 | $cli_handler_class->setup_environment(); | |
382 | ||
383 | if ($cmd eq 'bashcomplete') { | |
57e67ea3 | 384 | &$print_bash_completion(undef, @$args); |
d8053c08 | 385 | return; |
e143e9d8 DM |
386 | } |
387 | ||
8e3e9929 WB |
388 | &$preparefunc() if $preparefunc; |
389 | ||
e143e9d8 DM |
390 | $cmd = &$expand_command_name($cmddef, $cmd); |
391 | ||
392 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef->{$cmd} || []}; | |
918140af | 393 | $abort->("unknown command '$cmd'") if !$class; |
e143e9d8 DM |
394 | |
395 | my $prefix = "$exename $cmd"; | |
408976c6 | 396 | my $res = $class->cli_handler($prefix, $name, \@ARGV, $arg_param, $uri_param, $pwcallback, $stringfilemap); |
2026f4b5 DM |
397 | |
398 | &$outsub($res) if $outsub; | |
891b798d | 399 | }; |
2026f4b5 | 400 | |
891b798d | 401 | my $handle_simple_cmd = sub { |
57e67ea3 | 402 | my ($args, $pwcallback, $preparefunc, $stringfilemap) = @_; |
2026f4b5 | 403 | |
57e67ea3 | 404 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef}; |
2026f4b5 DM |
405 | die "no class specified" if !$class; |
406 | ||
d8053c08 | 407 | if (scalar(@$args) >= 1) { |
2026f4b5 DM |
408 | if ($args->[0] eq 'help') { |
409 | my $str = "USAGE: $name help\n"; | |
4845032a | 410 | $str .= $class->usage_str($name, $name, $arg_param, $uri_param, 'long', $pwcallback, $stringfilemap); |
2026f4b5 DM |
411 | print STDERR "$str\n\n"; |
412 | return; | |
413 | } elsif ($args->[0] eq 'verifyapi') { | |
414 | PVE::RESTHandler::validate_method_schemas(); | |
415 | return; | |
2026f4b5 | 416 | } |
e143e9d8 | 417 | } |
2026f4b5 | 418 | |
7b7f99c9 DM |
419 | $cli_handler_class->setup_environment(); |
420 | ||
421 | if (scalar(@$args) >= 1) { | |
422 | if ($args->[0] eq 'bashcomplete') { | |
423 | shift @$args; | |
57e67ea3 | 424 | &$print_bash_completion($name, @$args); |
7b7f99c9 DM |
425 | return; |
426 | } | |
427 | } | |
428 | ||
7fe1f565 DM |
429 | &$preparefunc() if $preparefunc; |
430 | ||
408976c6 | 431 | my $res = $class->cli_handler($name, $name, \@ARGV, $arg_param, $uri_param, $pwcallback, $stringfilemap); |
2026f4b5 DM |
432 | |
433 | &$outsub($res) if $outsub; | |
891b798d DM |
434 | }; |
435 | ||
891b798d DM |
436 | sub run_cli_handler { |
437 | my ($class, %params) = @_; | |
438 | ||
439 | $cli_handler_class = $class; | |
440 | ||
441 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; | |
442 | ||
aa9b9af5 | 443 | foreach my $key (keys %params) { |
5ae87c41 | 444 | next if $key eq 'prepare'; |
1042b82c DM |
445 | next if $key eq 'no_init'; # not used anymore |
446 | next if $key eq 'no_rpcenv'; # not used anymore | |
aa9b9af5 DM |
447 | die "unknown parameter '$key'"; |
448 | } | |
449 | ||
5ae87c41 | 450 | my $preparefunc = $params{prepare}; |
891b798d DM |
451 | |
452 | my $pwcallback = $class->can('read_password'); | |
408976c6 | 453 | my $stringfilemap = $class->can('string_param_file_mapping'); |
891b798d DM |
454 | |
455 | $exename = &$get_exe_name($class); | |
456 | ||
457 | initlog($exename); | |
458 | ||
891b798d | 459 | no strict 'refs'; |
57e67ea3 | 460 | $cmddef = ${"${class}::cmddef"}; |
891b798d | 461 | |
57e67ea3 TL |
462 | if (ref($cmddef) eq 'ARRAY') { |
463 | &$handle_simple_cmd(\@ARGV, $pwcallback, $preparefunc, $stringfilemap); | |
891b798d | 464 | } else { |
57e67ea3 | 465 | &$handle_cmd(\@ARGV, $pwcallback, $preparefunc, $stringfilemap); |
891b798d DM |
466 | } |
467 | ||
468 | exit 0; | |
e143e9d8 DM |
469 | } |
470 | ||
471 | 1; |