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1 | package PVE::CLIHandler; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use JSON; | |
6 | ||
7 | use PVE::SafeSyslog; | |
8 | use PVE::Exception qw(raise raise_param_exc); | |
9 | use PVE::RESTHandler; | |
10 | use PVE::PTY; | |
11 | use PVE::INotify; | |
12 | ||
13 | use base qw(PVE::RESTHandler); | |
14 | ||
15 | # $cmddef defines which (sub)commands are available in a specific CLI class. | |
16 | # A real command is always an array consisting of its class, name, array of | |
17 | # position fixed (required) parameters and hash of predefined parameters when | |
18 | # mapping a CLI command t o an API call. Optionally an output method can be | |
19 | # passed at the end, e.g., for formatting or transformation purpose. | |
20 | # | |
21 | # [class, name, fixed_params, API_pre-set params, output_sub ] | |
22 | # | |
23 | # In case of so called 'simple commands', the $cmddef can be also just an | |
24 | # array. | |
25 | # | |
26 | # Examples: | |
27 | # $cmddef = { | |
28 | # command => [ 'PVE::API2::Class', 'command', [ 'arg1', 'arg2' ], { node => $nodename } ], | |
29 | # do => { | |
30 | # this => [ 'PVE::API2::OtherClass', 'method', [ 'arg1' ], undef, sub { | |
31 | # my ($res) = @_; | |
32 | # print "$res\n"; | |
33 | # }], | |
34 | # that => [ 'PVE::API2::OtherClass', 'subroutine' [] ], | |
35 | # }, | |
36 | # dothat => { alias => 'do that' }, | |
37 | # } | |
38 | my $cmddef; | |
39 | my $exename; | |
40 | my $cli_handler_class; | |
41 | ||
42 | my $standard_mappings = { | |
43 | 'pve-password' => { | |
44 | name => 'password', | |
45 | desc => '<password>', | |
46 | interactive => 1, | |
47 | func => sub { | |
48 | my ($value) = @_; | |
49 | return $value if $value; | |
50 | return PVE::PTY::get_confirmed_password(); | |
51 | }, | |
52 | }, | |
53 | }; | |
54 | sub get_standard_mapping { | |
55 | my ($name, $base) = @_; | |
56 | ||
57 | my $std = $standard_mappings->{$name}; | |
58 | die "no such standard mapping '$name'\n" if !$std; | |
59 | ||
60 | my $res = $base || {}; | |
61 | ||
62 | foreach my $opt (keys %$std) { | |
63 | next if defined($res->{$opt}); | |
64 | $res->{$opt} = $std->{$opt}; | |
65 | } | |
66 | ||
67 | return $res; | |
68 | } | |
69 | ||
70 | my $assert_initialized = sub { | |
71 | my @caller = caller; | |
72 | die "$caller[0]:$caller[2] - not initialized\n" | |
73 | if !($cmddef && $exename && $cli_handler_class); | |
74 | }; | |
75 | ||
76 | my $abort = sub { | |
77 | my ($reason, $cmd) = @_; | |
78 | print_usage_short (\*STDERR, $reason, $cmd); | |
79 | exit (-1); | |
80 | }; | |
81 | ||
82 | my $expand_command_name = sub { | |
83 | my ($def, $cmd) = @_; | |
84 | ||
85 | return $cmd if exists $def->{$cmd}; # command is already complete | |
86 | ||
87 | my $is_alias = sub { ref($_[0]) eq 'HASH' && exists($_[0]->{alias}) }; | |
88 | my @expanded = grep { /^\Q$cmd\E/ && !$is_alias->($def->{$_}) } keys %$def; | |
89 | ||
90 | return $expanded[0] if scalar(@expanded) == 1; # enforce exact match | |
91 | ||
92 | return undef; | |
93 | }; | |
94 | ||
95 | my $get_commands = sub { | |
96 | my $def = shift // die "no command definition passed!"; | |
97 | return [ grep { !(ref($def->{$_}) eq 'HASH' && defined($def->{$_}->{alias})) } sort keys %$def ]; | |
98 | }; | |
99 | ||
100 | my $complete_command_names = sub { $get_commands->($cmddef) }; | |
101 | ||
102 | # traverses the command definition using the $argv array, resolving one level | |
103 | # of aliases. | |
104 | # Returns the matching (sub) command and its definition, and argument array for | |
105 | # this (sub) command and a hash where we marked which (sub) commands got | |
106 | # expanded (e.g. st => status) while traversing | |
107 | sub resolve_cmd { | |
108 | my ($argv, $is_alias) = @_; | |
109 | ||
110 | my ($def, $cmd) = ($cmddef, $argv); | |
111 | my $cmdstr = $exename; | |
112 | ||
113 | if (ref($argv) eq 'ARRAY') { | |
114 | my $expanded_last_arg; | |
115 | my $last_arg_id = scalar(@$argv) - 1; | |
116 | ||
117 | for my $i (0..$last_arg_id) { | |
118 | $cmd = $expand_command_name->($def, $argv->[$i]); | |
119 | if (defined($cmd)) { | |
120 | # If the argument was expanded (or was already complete) and it | |
121 | # is the final argument, tell our caller about it: | |
122 | $expanded_last_arg = $cmd if $i == $last_arg_id; | |
123 | } else { | |
124 | # Otherwise continue with the unexpanded version of it. | |
125 | $cmd = $argv->[$i]; | |
126 | } | |
127 | $cmdstr .= " $cmd"; | |
128 | $def = $def->{$cmd}; | |
129 | last if !defined($def); | |
130 | ||
131 | if (ref($def) eq 'ARRAY') { | |
132 | # could expand to a real command, rest of $argv are its arguments | |
133 | my $cmd_args = [ @$argv[$i+1..$last_arg_id] ]; | |
134 | return ($cmd, $def, $cmd_args, $expanded_last_arg, $cmdstr); | |
135 | } | |
136 | ||
137 | if (defined($def->{alias})) { | |
138 | die "alias loop detected for '$cmd'" if $is_alias; # avoids cycles | |
139 | # replace aliased (sub)command with the expanded aliased command | |
140 | splice @$argv, $i, 1, split(/ +/, $def->{alias}); | |
141 | return resolve_cmd($argv, 1); | |
142 | } | |
143 | } | |
144 | # got either a special command (bashcomplete, verifyapi) or an unknown | |
145 | # cmd, just return first entry as cmd and the rest of $argv as cmd_arg | |
146 | my $cmd_args = [ @$argv[1..$last_arg_id] ]; | |
147 | return ($argv->[0], $def, $cmd_args, $expanded_last_arg, $cmdstr); | |
148 | } | |
149 | return ($cmd, $def, undef, undef, $cmdstr); | |
150 | } | |
151 | ||
152 | sub generate_usage_str { | |
153 | my ($format, $cmd, $indent, $separator, $sortfunc) = @_; | |
154 | ||
155 | $assert_initialized->(); | |
156 | die 'format required' if !$format; | |
157 | ||
158 | $sortfunc //= sub { sort keys %{$_[0]} }; | |
159 | $separator //= ''; | |
160 | $indent //= ''; | |
161 | ||
162 | my $read_password_func = $cli_handler_class->can('read_password'); | |
163 | my $param_mapping_func = $cli_handler_class->can('param_mapping') || | |
164 | $cli_handler_class->can('string_param_file_mapping'); | |
165 | ||
166 | my ($subcmd, $def, undef, undef, $cmdstr) = resolve_cmd($cmd); | |
167 | $abort->("unknown command '$cmdstr'") if !defined($def) && ref($cmd) eq 'ARRAY'; | |
168 | ||
169 | my $generate; | |
170 | $generate = sub { | |
171 | my ($indent, $separator, $def, $prefix) = @_; | |
172 | ||
173 | my $str = ''; | |
174 | if (ref($def) eq 'HASH') { | |
175 | my $oldclass = undef; | |
176 | foreach my $cmd (&$sortfunc($def)) { | |
177 | ||
178 | if (ref($def->{$cmd}) eq 'ARRAY') { | |
179 | my ($class, $name, $arg_param, $fixed_param) = @{$def->{$cmd}}; | |
180 | ||
181 | $str .= $separator if $oldclass && $oldclass ne $class; | |
182 | $str .= $indent; | |
183 | $str .= $class->usage_str($name, "$prefix $cmd", $arg_param, | |
184 | $fixed_param, $format, | |
185 | $read_password_func, $param_mapping_func); | |
186 | $oldclass = $class; | |
187 | ||
188 | } elsif (defined($def->{$cmd}->{alias}) && ($format eq 'asciidoc')) { | |
189 | ||
190 | $str .= "*$prefix $cmd*\n\nAn alias for '$exename $def->{$cmd}->{alias}'.\n\n"; | |
191 | ||
192 | } else { | |
193 | next if $def->{$cmd}->{alias}; | |
194 | ||
195 | my $substr = $generate->($indent, $separator, $def->{$cmd}, "$prefix $cmd"); | |
196 | if ($substr) { | |
197 | $substr .= $separator if $substr !~ /\Q$separator\E{2}/; | |
198 | $str .= $substr; | |
199 | } | |
200 | } | |
201 | ||
202 | } | |
203 | } else { | |
204 | my ($class, $name, $arg_param, $fixed_param) = @$def; | |
205 | $abort->("unknown command '$cmd'") if !$class; | |
206 | ||
207 | $str .= $indent; | |
208 | $str .= $class->usage_str($name, $prefix, $arg_param, $fixed_param, $format, | |
209 | $read_password_func, $param_mapping_func); | |
210 | } | |
211 | return $str; | |
212 | }; | |
213 | ||
214 | return $generate->($indent, $separator, $def, $cmdstr); | |
215 | } | |
216 | ||
217 | __PACKAGE__->register_method ({ | |
218 | name => 'help', | |
219 | path => 'help', | |
220 | method => 'GET', | |
221 | description => "Get help about specified command.", | |
222 | parameters => { | |
223 | additionalProperties => 0, | |
224 | properties => { | |
225 | 'extra-args' => PVE::JSONSchema::get_standard_option('extra-args', { | |
226 | description => 'Shows help for a specific command', | |
227 | completion => $complete_command_names, | |
228 | }), | |
229 | verbose => { | |
230 | description => "Verbose output format.", | |
231 | type => 'boolean', | |
232 | optional => 1, | |
233 | }, | |
234 | }, | |
235 | }, | |
236 | returns => { type => 'null' }, | |
237 | ||
238 | code => sub { | |
239 | my ($param) = @_; | |
240 | ||
241 | $assert_initialized->(); | |
242 | ||
243 | my $cmd = $param->{'extra-args'}; | |
244 | ||
245 | my $verbose = defined($cmd) && $cmd; | |
246 | $verbose = $param->{verbose} if defined($param->{verbose}); | |
247 | ||
248 | if (!$cmd) { | |
249 | if ($verbose) { | |
250 | print_usage_verbose(); | |
251 | } else { | |
252 | print_usage_short(\*STDOUT); | |
253 | } | |
254 | return undef; | |
255 | } | |
256 | ||
257 | my $str; | |
258 | if ($verbose) { | |
259 | $str = generate_usage_str('full', $cmd, ''); | |
260 | } else { | |
261 | $str = generate_usage_str('short', $cmd, ' ' x 7); | |
262 | } | |
263 | $str =~ s/^\s+//; | |
264 | ||
265 | if ($verbose) { | |
266 | print "$str\n"; | |
267 | } else { | |
268 | print "USAGE: $str\n"; | |
269 | } | |
270 | ||
271 | return undef; | |
272 | ||
273 | }}); | |
274 | ||
275 | sub print_simple_asciidoc_synopsis { | |
276 | $assert_initialized->(); | |
277 | ||
278 | my $synopsis = "*${exename}* `help`\n\n"; | |
279 | $synopsis .= generate_usage_str('asciidoc'); | |
280 | ||
281 | return $synopsis; | |
282 | } | |
283 | ||
284 | sub print_asciidoc_synopsis { | |
285 | $assert_initialized->(); | |
286 | ||
287 | my $synopsis = ""; | |
288 | ||
289 | $synopsis .= "*${exename}* `<COMMAND> [ARGS] [OPTIONS]`\n\n"; | |
290 | ||
291 | $synopsis .= generate_usage_str('asciidoc'); | |
292 | ||
293 | $synopsis .= "\n"; | |
294 | ||
295 | return $synopsis; | |
296 | } | |
297 | ||
298 | sub print_usage_verbose { | |
299 | $assert_initialized->(); | |
300 | ||
301 | print "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n\n"; | |
302 | ||
303 | my $str = generate_usage_str('full'); | |
304 | ||
305 | print "$str\n"; | |
306 | } | |
307 | ||
308 | sub print_usage_short { | |
309 | my ($fd, $msg, $cmd) = @_; | |
310 | ||
311 | $assert_initialized->(); | |
312 | ||
313 | print $fd "ERROR: $msg\n" if $msg; | |
314 | print $fd "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n"; | |
315 | ||
316 | print {$fd} generate_usage_str('short', $cmd, ' ' x 7, "\n", sub { | |
317 | my ($h) = @_; | |
318 | return sort { | |
319 | if (ref($h->{$a}) eq 'ARRAY' && ref($h->{$b}) eq 'ARRAY') { | |
320 | # $a and $b are both real commands order them by their class | |
321 | return $h->{$a}->[0] cmp $h->{$b}->[0] || $a cmp $b; | |
322 | } elsif (ref($h->{$a}) eq 'ARRAY' xor ref($h->{$b}) eq 'ARRAY') { | |
323 | # real command and subcommand mixed, put sub commands first | |
324 | return ref($h->{$b}) eq 'ARRAY' ? -1 : 1; | |
325 | } else { | |
326 | # both are either from the same class or subcommands | |
327 | return $a cmp $b; | |
328 | } | |
329 | } keys %$h; | |
330 | }); | |
331 | } | |
332 | ||
333 | my $print_bash_completion = sub { | |
334 | my ($simple_cmd, $bash_command, $cur, $prev) = @_; | |
335 | ||
336 | my $debug = 0; | |
337 | ||
338 | return if !(defined($cur) && defined($prev) && defined($bash_command)); | |
339 | return if !defined($ENV{COMP_LINE}); | |
340 | return if !defined($ENV{COMP_POINT}); | |
341 | ||
342 | my $cmdline = substr($ENV{COMP_LINE}, 0, $ENV{COMP_POINT}); | |
343 | print STDERR "\nCMDLINE: $ENV{COMP_LINE}\n" if $debug; | |
344 | ||
345 | my $args = PVE::Tools::split_args($cmdline); | |
346 | shift @$args; # no need for program name | |
347 | my $print_result = sub { | |
348 | foreach my $p (@_) { | |
349 | print "$p\n" if $p =~ m/^\Q$cur\E/; | |
350 | } | |
351 | }; | |
352 | ||
353 | my ($cmd, $def) = ($simple_cmd, $cmddef); | |
354 | if (!$simple_cmd) { | |
355 | ($cmd, $def, $args, my $expanded) = resolve_cmd($args); | |
356 | ||
357 | if (defined($expanded) && $prev ne $expanded) { | |
358 | print "$expanded\n"; | |
359 | return; | |
360 | } | |
361 | ||
362 | if (ref($def) eq 'HASH') { | |
363 | &$print_result(@{$get_commands->($def)}); | |
364 | return; | |
365 | } | |
366 | } | |
367 | return if !$def; | |
368 | ||
369 | my $pos = scalar(@$args) - 1; | |
370 | $pos += 1 if $cmdline =~ m/\s+$/; | |
371 | print STDERR "pos: $pos\n" if $debug; | |
372 | return if $pos < 0; | |
373 | ||
374 | my $skip_param = {}; | |
375 | ||
376 | my ($class, $name, $arg_param, $uri_param) = @$def; | |
377 | $arg_param //= []; | |
378 | $uri_param //= {}; | |
379 | ||
380 | $arg_param = [ $arg_param ] if !ref($arg_param); | |
381 | ||
382 | map { $skip_param->{$_} = 1; } @$arg_param; | |
383 | map { $skip_param->{$_} = 1; } keys %$uri_param; | |
384 | ||
385 | my $info = $class->map_method_by_name($name); | |
386 | ||
387 | my $prop = $info->{parameters}->{properties}; | |
388 | ||
389 | my $print_parameter_completion = sub { | |
390 | my ($pname) = @_; | |
391 | my $d = $prop->{$pname}; | |
392 | if ($d->{completion}) { | |
393 | my $vt = ref($d->{completion}); | |
394 | if ($vt eq 'CODE') { | |
395 | my $res = $d->{completion}->($cmd, $pname, $cur, $args); | |
396 | &$print_result(@$res); | |
397 | } | |
398 | } elsif ($d->{type} eq 'boolean') { | |
399 | &$print_result('0', '1'); | |
400 | } elsif ($d->{enum}) { | |
401 | &$print_result(@{$d->{enum}}); | |
402 | } | |
403 | }; | |
404 | ||
405 | # positional arguments | |
406 | if ($pos < scalar(@$arg_param)) { | |
407 | my $pname = $arg_param->[$pos]; | |
408 | &$print_parameter_completion($pname); | |
409 | return; | |
410 | } | |
411 | ||
412 | my @option_list = (); | |
413 | foreach my $key (keys %$prop) { | |
414 | next if $skip_param->{$key}; | |
415 | push @option_list, "--$key"; | |
416 | } | |
417 | ||
418 | if ($cur =~ m/^-/) { | |
419 | &$print_result(@option_list); | |
420 | return; | |
421 | } | |
422 | ||
423 | if ($prev =~ m/^--?(.+)$/ && $prop->{$1}) { | |
424 | my $pname = $1; | |
425 | &$print_parameter_completion($pname); | |
426 | return; | |
427 | } | |
428 | ||
429 | &$print_result(@option_list); | |
430 | }; | |
431 | ||
432 | sub data_to_text { | |
433 | my ($data) = @_; | |
434 | ||
435 | return '' if !defined($data); | |
436 | ||
437 | if (my $class = ref($data)) { | |
438 | return to_json($data, { utf8 => 1, canonical => 1 }); | |
439 | } else { | |
440 | return "$data"; | |
441 | } | |
442 | } | |
443 | ||
444 | # prints a formatted table with a title row. | |
445 | # $data - the data to print (array of objects) | |
446 | # $returnprops -json schema property description | |
447 | # $props_to_print - ordered list of properties to print | |
448 | # $sort_key can be used to sort after a column, if it isn't set we sort | |
449 | # after the leftmost column (with no undef value in $data) this can be | |
450 | # turned off by passing 0 as $sort_key | |
451 | sub print_text_table { | |
452 | my ($data, $returnprops, $props_to_print, $sort_key) = @_; | |
453 | ||
454 | my $autosort = 1; | |
455 | if (defined($sort_key) && $sort_key eq 0) { | |
456 | $autosort = 0; | |
457 | $sort_key = undef; | |
458 | } | |
459 | ||
460 | my $colopts = {}; | |
461 | my $formatstring = ''; | |
462 | ||
463 | my $column_count = scalar(@$props_to_print); | |
464 | ||
465 | for (my $i = 0; $i < $column_count; $i++) { | |
466 | my $prop = $props_to_print->[$i]; | |
467 | my $propinfo = $returnprops->{$prop} // {}; | |
468 | ||
469 | my $title = $propinfo->{title} // $prop; | |
470 | my $cutoff = $propinfo->{print_width} // $propinfo->{maxLength}; | |
471 | ||
472 | # calculate maximal print width and cutoff | |
473 | my $titlelen = length($title); | |
474 | ||
475 | my $longest = $titlelen; | |
476 | my $sortable = $autosort; | |
477 | foreach my $entry (@$data) { | |
478 | my $len = length(data_to_text($entry->{$prop})) // 0; | |
479 | $longest = $len if $len > $longest; | |
480 | $sortable = 0 if !defined($entry->{$prop}); | |
481 | } | |
482 | $cutoff = $longest if !defined($cutoff) || $cutoff > $longest; | |
483 | $sort_key //= $prop if $sortable; | |
484 | ||
485 | $colopts->{$prop} = { | |
486 | title => $title, | |
487 | default => $propinfo->{default} // '', | |
488 | cutoff => $cutoff, | |
489 | }; | |
490 | ||
491 | # skip alignment and cutoff on last column | |
492 | $formatstring .= ($i == ($column_count - 1)) ? "%s\n" : "%-${cutoff}s "; | |
493 | } | |
494 | ||
495 | printf $formatstring, map { $colopts->{$_}->{title} } @$props_to_print; | |
496 | ||
497 | if (defined($sort_key)) { | |
498 | my $type = $returnprops->{$sort_key}->{type} // 'string'; | |
499 | if ($type eq 'integer' || $type eq 'number') { | |
500 | @$data = sort { $a->{$sort_key} <=> $b->{$sort_key} } @$data; | |
501 | } else { | |
502 | @$data = sort { $a->{$sort_key} cmp $b->{$sort_key} } @$data; | |
503 | } | |
504 | } | |
505 | ||
506 | foreach my $entry (@$data) { | |
507 | printf $formatstring, map { | |
508 | substr(data_to_text($entry->{$_}) // $colopts->{$_}->{default}, | |
509 | 0, $colopts->{$_}->{cutoff}); | |
510 | } @$props_to_print; | |
511 | } | |
512 | } | |
513 | ||
514 | # prints the result of an API GET call returning an array as a table. | |
515 | # takes formatting information from the results property of the call | |
516 | # if $props_to_print is provided, prints only those columns. otherwise | |
517 | # takes all fields of the results property, with a fallback | |
518 | # to all fields occuring in items of $data. | |
519 | sub print_api_list { | |
520 | my ($data, $result_schema, $props_to_print, $sort_key) = @_; | |
521 | ||
522 | die "can only print object lists\n" | |
523 | if !($result_schema->{type} eq 'array' && $result_schema->{items}->{type} eq 'object'); | |
524 | ||
525 | my $returnprops = $result_schema->{items}->{properties}; | |
526 | ||
527 | if (!defined($props_to_print)) { | |
528 | $props_to_print = [ sort keys %$returnprops ]; | |
529 | if (!scalar(@$props_to_print)) { | |
530 | my $all_props = {}; | |
531 | foreach my $obj (@{$data}) { | |
532 | foreach my $key (keys %{$obj}) { | |
533 | $all_props->{ $key } = 1; | |
534 | } | |
535 | } | |
536 | $props_to_print = [ sort keys %{$all_props} ]; | |
537 | } | |
538 | die "unable to detect list properties\n" if !scalar(@$props_to_print); | |
539 | } | |
540 | ||
541 | print_text_table($data, $returnprops, $props_to_print, $sort_key); | |
542 | } | |
543 | ||
544 | sub print_api_result { | |
545 | my ($format, $data, $result_schema, $props_to_print, $sort_key) = @_; | |
546 | ||
547 | return if $result_schema->{type} eq 'null'; | |
548 | ||
549 | if ($format eq 'json') { | |
550 | print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1, pretty => 1 }); | |
551 | } elsif ($format eq 'text') { | |
552 | my $type = $result_schema->{type}; | |
553 | if ($type eq 'object') { | |
554 | $props_to_print = [ sort keys %$data ] if !defined($props_to_print); | |
555 | foreach my $key (@$props_to_print) { | |
556 | print $key . ": " . data_to_text($data->{$key}) . "\n"; | |
557 | } | |
558 | } elsif ($type eq 'array') { | |
559 | return if !scalar(@$data); | |
560 | my $item_type = $result_schema->{items}->{type}; | |
561 | if ($item_type eq 'object') { | |
562 | print_api_list($data, $result_schema, $props_to_print, $sort_key); | |
563 | } else { | |
564 | foreach my $entry (@$data) { | |
565 | print data_to_text($entry) . "\n"; | |
566 | } | |
567 | } | |
568 | } else { | |
569 | print "$data\n"; | |
570 | } | |
571 | } else { | |
572 | die "internal error: unknown output format"; # should not happen | |
573 | } | |
574 | } | |
575 | ||
576 | sub verify_api { | |
577 | my ($class) = @_; | |
578 | ||
579 | # simply verify all registered methods | |
580 | PVE::RESTHandler::validate_method_schemas(); | |
581 | } | |
582 | ||
583 | my $get_exe_name = sub { | |
584 | my ($class) = @_; | |
585 | ||
586 | my $name = $class; | |
587 | $name =~ s/^.*:://; | |
588 | $name =~ s/_/-/g; | |
589 | ||
590 | return $name; | |
591 | }; | |
592 | ||
593 | sub generate_bash_completions { | |
594 | my ($class) = @_; | |
595 | ||
596 | # generate bash completion config | |
597 | ||
598 | $exename = &$get_exe_name($class); | |
599 | ||
600 | print <<__EOD__; | |
601 | # $exename bash completion | |
602 | ||
603 | # see http://tiswww.case.edu/php/chet/bash/FAQ | |
604 | # and __ltrim_colon_completions() in /usr/share/bash-completion/bash_completion | |
605 | # this modifies global var, but I found no better way | |
606 | COMP_WORDBREAKS=\${COMP_WORDBREAKS//:} | |
607 | ||
608 | complete -o default -C '$exename bashcomplete' $exename | |
609 | __EOD__ | |
610 | } | |
611 | ||
612 | sub generate_asciidoc_synopsys { | |
613 | my ($class) = @_; | |
614 | $class->generate_asciidoc_synopsis(); | |
615 | }; | |
616 | ||
617 | sub generate_asciidoc_synopsis { | |
618 | my ($class) = @_; | |
619 | ||
620 | $cli_handler_class = $class; | |
621 | ||
622 | $exename = &$get_exe_name($class); | |
623 | ||
624 | no strict 'refs'; | |
625 | my $def = ${"${class}::cmddef"}; | |
626 | $cmddef = $def; | |
627 | ||
628 | if (ref($def) eq 'ARRAY') { | |
629 | print_simple_asciidoc_synopsis(); | |
630 | } else { | |
631 | $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ]; | |
632 | ||
633 | print_asciidoc_synopsis(); | |
634 | } | |
635 | } | |
636 | ||
637 | # overwrite this if you want to run/setup things early | |
638 | sub setup_environment { | |
639 | my ($class) = @_; | |
640 | ||
641 | # do nothing by default | |
642 | } | |
643 | ||
644 | my $handle_cmd = sub { | |
645 | my ($args, $read_password_func, $preparefunc, $param_mapping_func) = @_; | |
646 | ||
647 | $cmddef->{help} = [ __PACKAGE__, 'help', ['extra-args'] ]; | |
648 | ||
649 | my ($cmd, $def, $cmd_args, undef, $cmd_str) = resolve_cmd($args); | |
650 | ||
651 | $abort->("no command specified") if !$cmd; | |
652 | ||
653 | # call verifyapi before setup_environment(), don't execute any real code in | |
654 | # this case | |
655 | if ($cmd eq 'verifyapi') { | |
656 | PVE::RESTHandler::validate_method_schemas(); | |
657 | return; | |
658 | } | |
659 | ||
660 | $cli_handler_class->setup_environment(); | |
661 | ||
662 | if ($cmd eq 'bashcomplete') { | |
663 | &$print_bash_completion(undef, @$cmd_args); | |
664 | return; | |
665 | } | |
666 | ||
667 | # checked special commands, if def is still a hash we got an incomplete sub command | |
668 | $abort->("incomplete command '$cmd_str'", $args) if ref($def) eq 'HASH'; | |
669 | ||
670 | &$preparefunc() if $preparefunc; | |
671 | ||
672 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$def || []}; | |
673 | $abort->("unknown command '$cmd_str'") if !$class; | |
674 | ||
675 | my $res = $class->cli_handler($cmd_str, $name, $cmd_args, $arg_param, $uri_param, $read_password_func, $param_mapping_func); | |
676 | ||
677 | if (defined $outsub) { | |
678 | my $result_schema = $class->map_method_by_name($name)->{returns}; | |
679 | $outsub->($res, $result_schema); | |
680 | } | |
681 | }; | |
682 | ||
683 | my $handle_simple_cmd = sub { | |
684 | my ($args, $read_password_func, $preparefunc, $param_mapping_func) = @_; | |
685 | ||
686 | my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef}; | |
687 | die "no class specified" if !$class; | |
688 | ||
689 | if (scalar(@$args) >= 1) { | |
690 | if ($args->[0] eq 'help') { | |
691 | my $str = "USAGE: $name help\n"; | |
692 | $str .= generate_usage_str('long'); | |
693 | print STDERR "$str\n\n"; | |
694 | return; | |
695 | } elsif ($args->[0] eq 'verifyapi') { | |
696 | PVE::RESTHandler::validate_method_schemas(); | |
697 | return; | |
698 | } | |
699 | } | |
700 | ||
701 | $cli_handler_class->setup_environment(); | |
702 | ||
703 | if (scalar(@$args) >= 1) { | |
704 | if ($args->[0] eq 'bashcomplete') { | |
705 | shift @$args; | |
706 | &$print_bash_completion($name, @$args); | |
707 | return; | |
708 | } | |
709 | } | |
710 | ||
711 | &$preparefunc() if $preparefunc; | |
712 | ||
713 | my $res = $class->cli_handler($name, $name, \@ARGV, $arg_param, $uri_param, $read_password_func, $param_mapping_func); | |
714 | ||
715 | if (defined $outsub) { | |
716 | my $result_schema = $class->map_method_by_name($name)->{returns}; | |
717 | $outsub->($res, $result_schema); | |
718 | } | |
719 | }; | |
720 | ||
721 | sub run_cli_handler { | |
722 | my ($class, %params) = @_; | |
723 | ||
724 | $cli_handler_class = $class; | |
725 | ||
726 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; | |
727 | ||
728 | foreach my $key (keys %params) { | |
729 | next if $key eq 'prepare'; | |
730 | next if $key eq 'no_init'; # not used anymore | |
731 | next if $key eq 'no_rpcenv'; # not used anymore | |
732 | die "unknown parameter '$key'"; | |
733 | } | |
734 | ||
735 | my $preparefunc = $params{prepare}; | |
736 | ||
737 | my $read_password_func = $class->can('read_password'); | |
738 | my $param_mapping_func = $cli_handler_class->can('param_mapping') || | |
739 | $class->can('string_param_file_mapping'); | |
740 | ||
741 | $exename = &$get_exe_name($class); | |
742 | ||
743 | initlog($exename); | |
744 | ||
745 | no strict 'refs'; | |
746 | $cmddef = ${"${class}::cmddef"}; | |
747 | ||
748 | if (ref($cmddef) eq 'ARRAY') { | |
749 | &$handle_simple_cmd(\@ARGV, $read_password_func, $preparefunc, $param_mapping_func); | |
750 | } else { | |
751 | &$handle_cmd(\@ARGV, $read_password_func, $preparefunc, $param_mapping_func); | |
752 | } | |
753 | ||
754 | exit 0; | |
755 | } | |
756 | ||
757 | 1; |