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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 DM |
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 | 50 | __PACKAGE__->register_method ({ |
3ef20687 | 51 | name => 'help', |
e143e9d8 DM |
52 | path => 'help', |
53 | method => 'GET', | |
54 | description => "Get help about specified command.", | |
55 | parameters => { | |
3ef20687 | 56 | additionalProperties => 0, |
e143e9d8 DM |
57 | properties => { |
58 | cmd => { | |
59 | description => "Command name", | |
60 | type => 'string', | |
61 | optional => 1, | |
edf3d572 | 62 | completion => $complete_command_names, |
e143e9d8 DM |
63 | }, |
64 | verbose => { | |
65 | description => "Verbose output format.", | |
66 | type => 'boolean', | |
67 | optional => 1, | |
68 | }, | |
69 | }, | |
70 | }, | |
71 | returns => { type => 'null' }, | |
3ef20687 | 72 | |
e143e9d8 DM |
73 | code => sub { |
74 | my ($param) = @_; | |
75 | ||
891b798d | 76 | die "not initialized" if !($cmddef && $exename && $cli_handler_class); |
e143e9d8 DM |
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(); | |
3ef20687 | 86 | } else { |
e143e9d8 DM |
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 | ||
891b798d | 98 | my $pwcallback = $cli_handler_class->can('read_password'); |
4845032a | 99 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
e143e9d8 | 100 | |
891b798d | 101 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, |
4845032a FG |
102 | $verbose ? 'full' : 'short', $pwcallback, |
103 | $stringfilemap); | |
e143e9d8 DM |
104 | if ($verbose) { |
105 | print "$str\n"; | |
106 | } else { | |
107 | print "USAGE: $str\n"; | |
108 | } | |
109 | ||
110 | return undef; | |
111 | ||
112 | }}); | |
113 | ||
0a5a1eee | 114 | sub print_simple_asciidoc_synopsis { |
fe3f1fde DM |
115 | my ($class, $name, $arg_param, $uri_param) = @_; |
116 | ||
117 | die "not initialized" if !$cli_handler_class; | |
118 | ||
119 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 120 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
fe3f1fde DM |
121 | |
122 | my $synopsis = "*${name}* `help`\n\n"; | |
123 | ||
4845032a FG |
124 | $synopsis .= $class->usage_str($name, $name, $arg_param, $uri_param, |
125 | 'asciidoc', $pwcallback, $stringfilemap); | |
fe3f1fde DM |
126 | |
127 | return $synopsis; | |
128 | } | |
129 | ||
0a5a1eee | 130 | sub print_asciidoc_synopsis { |
fe3f1fde DM |
131 | |
132 | die "not initialized" if !($cmddef && $exename && $cli_handler_class); | |
133 | ||
134 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 135 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
fe3f1fde DM |
136 | |
137 | my $synopsis = ""; | |
138 | ||
139 | $synopsis .= "*${exename}* `<COMMAND> [ARGS] [OPTIONS]`\n\n"; | |
140 | ||
141 | my $oldclass; | |
142 | foreach my $cmd (sort keys %$cmddef) { | |
143 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
144 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, | |
4845032a FG |
145 | $uri_param, 'asciidoc', $pwcallback, |
146 | $stringfilemap); | |
fe3f1fde DM |
147 | $synopsis .= "\n" if $oldclass && $oldclass ne $class; |
148 | ||
149 | $synopsis .= "$str\n\n"; | |
150 | $oldclass = $class; | |
151 | } | |
152 | ||
153 | $synopsis .= "\n"; | |
154 | ||
155 | return $synopsis; | |
156 | } | |
157 | ||
e143e9d8 DM |
158 | sub print_usage_verbose { |
159 | ||
891b798d DM |
160 | die "not initialized" if !($cmddef && $exename && $cli_handler_class); |
161 | ||
162 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 163 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
e143e9d8 DM |
164 | |
165 | print "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n\n"; | |
166 | ||
167 | foreach my $cmd (sort keys %$cmddef) { | |
168 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
891b798d | 169 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, |
4845032a | 170 | 'full', $pwcallback, $stringfilemap); |
e143e9d8 DM |
171 | print "$str\n\n"; |
172 | } | |
173 | } | |
174 | ||
175 | sub sorted_commands { | |
176 | return sort { ($cmddef->{$a}->[0] cmp $cmddef->{$b}->[0]) || ($a cmp $b)} keys %$cmddef; | |
177 | } | |
178 | ||
179 | sub print_usage_short { | |
180 | my ($fd, $msg) = @_; | |
181 | ||
891b798d DM |
182 | die "not initialized" if !($cmddef && $exename && $cli_handler_class); |
183 | ||
184 | my $pwcallback = $cli_handler_class->can('read_password'); | |
4845032a | 185 | my $stringfilemap = $cli_handler_class->can('string_param_file_mapping'); |
e143e9d8 DM |
186 | |
187 | print $fd "ERROR: $msg\n" if $msg; | |
188 | print $fd "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n"; | |
189 | ||
190 | my $oldclass; | |
191 | foreach my $cmd (sorted_commands()) { | |
192 | my ($class, $name, $arg_param, $uri_param) = @{$cmddef->{$cmd}}; | |
4845032a | 193 | my $str = $class->usage_str($name, "$exename $cmd", $arg_param, $uri_param, 'short', $pwcallback, $stringfilemap); |
e143e9d8 DM |
194 | print $fd "\n" if $oldclass && $oldclass ne $class; |
195 | print $fd " $str"; | |
196 | $oldclass = $class; | |
197 | } | |
198 | } | |
199 | ||
d8053c08 DM |
200 | my $print_bash_completion = sub { |
201 | my ($cmddef, $simple_cmd, $bash_command, $cur, $prev) = @_; | |
202 | ||
203 | my $debug = 0; | |
204 | ||
205 | return if !(defined($cur) && defined($prev) && defined($bash_command)); | |
206 | return if !defined($ENV{COMP_LINE}); | |
207 | return if !defined($ENV{COMP_POINT}); | |
208 | ||
209 | my $cmdline = substr($ENV{COMP_LINE}, 0, $ENV{COMP_POINT}); | |
210 | print STDERR "\nCMDLINE: $ENV{COMP_LINE}\n" if $debug; | |
211 | ||
58d9e664 DM |
212 | my $args = PVE::Tools::split_args($cmdline); |
213 | my $pos = scalar(@$args) - 2; | |
d8053c08 DM |
214 | $pos += 1 if $cmdline =~ m/\s+$/; |
215 | ||
216 | print STDERR "CMDLINE:$pos:$cmdline\n" if $debug; | |
217 | ||
218 | return if $pos < 0; | |
219 | ||
220 | my $print_result = sub { | |
221 | foreach my $p (@_) { | |
222 | print "$p\n" if $p =~ m/^$cur/; | |
223 | } | |
224 | }; | |
225 | ||
226 | my $cmd; | |
227 | if ($simple_cmd) { | |
228 | $cmd = $simple_cmd; | |
229 | } else { | |
230 | if ($pos == 0) { | |
231 | &$print_result(keys %$cmddef); | |
232 | return; | |
233 | } | |
58d9e664 | 234 | $cmd = $args->[1]; |
d8053c08 DM |
235 | } |
236 | ||
237 | my $def = $cmddef->{$cmd}; | |
238 | return if !$def; | |
239 | ||
240 | print STDERR "CMDLINE1:$pos:$cmdline\n" if $debug; | |
241 | ||
242 | my $skip_param = {}; | |
243 | ||
244 | my ($class, $name, $arg_param, $uri_param) = @$def; | |
245 | $arg_param //= []; | |
246 | $uri_param //= {}; | |
247 | ||
d90a2fd0 DM |
248 | $arg_param = [ $arg_param ] if !ref($arg_param); |
249 | ||
d8053c08 DM |
250 | map { $skip_param->{$_} = 1; } @$arg_param; |
251 | map { $skip_param->{$_} = 1; } keys %$uri_param; | |
252 | ||
253 | my $fpcount = scalar(@$arg_param); | |
254 | ||
255 | my $info = $class->map_method_by_name($name); | |
256 | ||
257 | my $schema = $info->{parameters}; | |
258 | my $prop = $schema->{properties}; | |
259 | ||
260 | my $print_parameter_completion = sub { | |
261 | my ($pname) = @_; | |
262 | my $d = $prop->{$pname}; | |
263 | if ($d->{completion}) { | |
264 | my $vt = ref($d->{completion}); | |
265 | if ($vt eq 'CODE') { | |
58d9e664 | 266 | my $res = $d->{completion}->($cmd, $pname, $cur, $args); |
d8053c08 DM |
267 | &$print_result(@$res); |
268 | } | |
269 | } elsif ($d->{type} eq 'boolean') { | |
270 | &$print_result('0', '1'); | |
271 | } elsif ($d->{enum}) { | |
272 | &$print_result(@{$d->{enum}}); | |
273 | } | |
274 | }; | |
275 | ||
276 | # positional arguments | |
277 | $pos += 1 if $simple_cmd; | |
278 | if ($fpcount && $pos <= $fpcount) { | |
279 | my $pname = $arg_param->[$pos -1]; | |
280 | &$print_parameter_completion($pname); | |
281 | return; | |
282 | } | |
283 | ||
284 | my @option_list = (); | |
285 | foreach my $key (keys %$prop) { | |
286 | next if $skip_param->{$key}; | |
287 | push @option_list, "--$key"; | |
288 | } | |
289 | ||
290 | if ($cur =~ m/^-/) { | |
291 | &$print_result(@option_list); | |
292 | return; | |
293 | } | |
294 | ||
295 | if ($prev =~ m/^--?(.+)$/ && $prop->{$1}) { | |
296 | my $pname = $1; | |
297 | &$print_parameter_completion($pname); | |
298 | return; | |
299 | } | |
300 | ||
301 | &$print_result(@option_list); | |
302 | }; | |
303 | ||
1f130ba6 DM |
304 | sub verify_api { |
305 | my ($class) = @_; | |
306 | ||
307 | # simply verify all registered methods | |
308 | PVE::RESTHandler::validate_method_schemas(); | |
309 | } | |
310 | ||
8f3712f8 DM |
311 | my $get_exe_name = sub { |
312 | my ($class) = @_; | |
3ef20687 | 313 | |
8f3712f8 DM |
314 | my $name = $class; |
315 | $name =~ s/^.*:://; | |
316 | $name =~ s/_/-/g; | |
317 | ||
318 | return $name; | |
319 | }; | |
320 | ||
c45707a0 DM |
321 | sub generate_bash_completions { |
322 | my ($class) = @_; | |
323 | ||
324 | # generate bash completion config | |
325 | ||
8f3712f8 | 326 | $exename = &$get_exe_name($class); |
c45707a0 DM |
327 | |
328 | print <<__EOD__; | |
329 | # $exename bash completion | |
330 | ||
331 | # see http://tiswww.case.edu/php/chet/bash/FAQ | |
332 | # and __ltrim_colon_completions() in /usr/share/bash-completion/bash_completion | |
333 | # this modifies global var, but I found no better way | |
334 | COMP_WORDBREAKS=\${COMP_WORDBREAKS//:} | |
335 | ||
e4a1d8e2 | 336 | complete -o default -C '$exename bashcomplete' $exename |
c45707a0 DM |
337 | __EOD__ |
338 | } | |
339 | ||
fe3f1fde DM |
340 | sub generate_asciidoc_synopsys { |
341 | my ($class) = @_; | |
0a5a1eee FG |
342 | $class->generate_asciidoc_synopsis(); |
343 | }; | |
344 | ||
345 | sub generate_asciidoc_synopsis { | |
346 | my ($class) = @_; | |
fe3f1fde DM |
347 | |
348 | $cli_handler_class = $class; | |
349 | ||
350 | $exename = &$get_exe_name($class); | |
351 | ||
352 | no strict 'refs'; | |
353 | my $def = ${"${class}::cmddef"}; | |
354 | ||
355 | if (ref($def) eq 'ARRAY') { | |
0a5a1eee | 356 | print_simple_asciidoc_synopsis(@$def); |
fe3f1fde DM |
357 | } else { |
358 | $cmddef = $def; | |
359 | ||
360 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; | |
361 | ||
0a5a1eee | 362 | print_asciidoc_synopsis(); |
fe3f1fde DM |
363 | } |
364 | } | |
365 | ||
7b7f99c9 DM |
366 | # overwrite this if you want to run/setup things early |
367 | sub setup_environment { | |
368 | my ($class) = @_; | |
369 | ||
370 | # do nothing by default | |
371 | } | |
372 | ||
891b798d | 373 | my $handle_cmd = sub { |
bf27456b | 374 | my ($def, $cmdname, $cmd, $args, $pwcallback, $preparefunc, $stringfilemap) = @_; |
e143e9d8 DM |
375 | |
376 | $cmddef = $def; | |
377 | $exename = $cmdname; | |
378 | ||
379 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; | |
380 | ||
7b7f99c9 DM |
381 | # call verifyapi before setup_environment(), because we do not want to |
382 | # execute any real code in this case | |
383 | ||
384 | if (!$cmd) { | |
e143e9d8 DM |
385 | print_usage_short (\*STDERR, "no command specified"); |
386 | exit (-1); | |
387 | } elsif ($cmd eq 'verifyapi') { | |
388 | PVE::RESTHandler::validate_method_schemas(); | |
389 | return; | |
7b7f99c9 DM |
390 | } |
391 | ||
392 | $cli_handler_class->setup_environment(); | |
393 | ||
394 | if ($cmd eq 'bashcomplete') { | |
d8053c08 DM |
395 | &$print_bash_completion($cmddef, 0, @$args); |
396 | return; | |
e143e9d8 DM |
397 | } |
398 | ||
8e3e9929 WB |
399 | &$preparefunc() if $preparefunc; |
400 | ||
e143e9d8 DM |
401 | $cmd = &$expand_command_name($cmddef, $cmd); |
402 | ||
403 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef->{$cmd} || []}; | |
404 | ||
405 | if (!$class) { | |
406 | print_usage_short (\*STDERR, "unknown command '$cmd'"); | |
407 | exit (-1); | |
408 | } | |
409 | ||
410 | my $prefix = "$exename $cmd"; | |
408976c6 | 411 | my $res = $class->cli_handler($prefix, $name, \@ARGV, $arg_param, $uri_param, $pwcallback, $stringfilemap); |
2026f4b5 DM |
412 | |
413 | &$outsub($res) if $outsub; | |
891b798d | 414 | }; |
2026f4b5 | 415 | |
891b798d | 416 | my $handle_simple_cmd = sub { |
bf27456b | 417 | my ($def, $args, $pwcallback, $preparefunc, $stringfilemap) = @_; |
2026f4b5 DM |
418 | |
419 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$def}; | |
420 | die "no class specified" if !$class; | |
421 | ||
d8053c08 | 422 | if (scalar(@$args) >= 1) { |
2026f4b5 DM |
423 | if ($args->[0] eq 'help') { |
424 | my $str = "USAGE: $name help\n"; | |
4845032a | 425 | $str .= $class->usage_str($name, $name, $arg_param, $uri_param, 'long', $pwcallback, $stringfilemap); |
2026f4b5 DM |
426 | print STDERR "$str\n\n"; |
427 | return; | |
428 | } elsif ($args->[0] eq 'verifyapi') { | |
429 | PVE::RESTHandler::validate_method_schemas(); | |
430 | return; | |
2026f4b5 | 431 | } |
e143e9d8 | 432 | } |
2026f4b5 | 433 | |
7b7f99c9 DM |
434 | $cli_handler_class->setup_environment(); |
435 | ||
436 | if (scalar(@$args) >= 1) { | |
437 | if ($args->[0] eq 'bashcomplete') { | |
438 | shift @$args; | |
439 | &$print_bash_completion({ $name => $def }, $name, @$args); | |
440 | return; | |
441 | } | |
442 | } | |
443 | ||
7fe1f565 DM |
444 | &$preparefunc() if $preparefunc; |
445 | ||
408976c6 | 446 | my $res = $class->cli_handler($name, $name, \@ARGV, $arg_param, $uri_param, $pwcallback, $stringfilemap); |
2026f4b5 DM |
447 | |
448 | &$outsub($res) if $outsub; | |
891b798d DM |
449 | }; |
450 | ||
891b798d DM |
451 | sub run_cli_handler { |
452 | my ($class, %params) = @_; | |
453 | ||
454 | $cli_handler_class = $class; | |
455 | ||
456 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; | |
457 | ||
aa9b9af5 | 458 | foreach my $key (keys %params) { |
5ae87c41 | 459 | next if $key eq 'prepare'; |
1042b82c DM |
460 | next if $key eq 'no_init'; # not used anymore |
461 | next if $key eq 'no_rpcenv'; # not used anymore | |
aa9b9af5 DM |
462 | die "unknown parameter '$key'"; |
463 | } | |
464 | ||
5ae87c41 | 465 | my $preparefunc = $params{prepare}; |
891b798d DM |
466 | |
467 | my $pwcallback = $class->can('read_password'); | |
408976c6 | 468 | my $stringfilemap = $class->can('string_param_file_mapping'); |
891b798d DM |
469 | |
470 | $exename = &$get_exe_name($class); | |
471 | ||
472 | initlog($exename); | |
473 | ||
891b798d DM |
474 | no strict 'refs'; |
475 | my $def = ${"${class}::cmddef"}; | |
476 | ||
477 | if (ref($def) eq 'ARRAY') { | |
bf27456b | 478 | &$handle_simple_cmd($def, \@ARGV, $pwcallback, $preparefunc, $stringfilemap); |
891b798d DM |
479 | } else { |
480 | $cmddef = $def; | |
481 | my $cmd = shift @ARGV; | |
bf27456b | 482 | &$handle_cmd($cmddef, $exename, $cmd, \@ARGV, $pwcallback, $preparefunc, $stringfilemap); |
891b798d DM |
483 | } |
484 | ||
485 | exit 0; | |
e143e9d8 DM |
486 | } |
487 | ||
488 | 1; |