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212b08e8 DM |
1 | package PVE::SectionConfig; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use Digest::SHA; | |
6 | use PVE::Exception qw(raise_param_exc); | |
7 | use PVE::JSONSchema qw(get_standard_option); | |
8 | ||
9 | use Data::Dumper; | |
10 | ||
11 | my $defaultData = { | |
12 | options => {}, | |
13 | plugins => {}, | |
14 | plugindata => {}, | |
15 | propertyList => {}, | |
16 | }; | |
17 | ||
18 | sub private { | |
19 | die "overwrite me"; | |
20 | return $defaultData; | |
21 | } | |
22 | ||
23 | sub register { | |
24 | my ($class) = @_; | |
25 | ||
26 | my $type = $class->type(); | |
27 | my $pdata = $class->private(); | |
28 | ||
29 | my $plugindata = $class->plugindata(); | |
30 | $pdata->{plugindata}->{$type} = $plugindata; | |
31 | $pdata->{plugins}->{$type} = $class; | |
32 | } | |
33 | ||
34 | sub type { | |
35 | die "overwrite me"; | |
36 | } | |
37 | ||
38 | sub properties { | |
39 | return {}; | |
40 | } | |
41 | ||
42 | sub options { | |
43 | return {}; | |
44 | } | |
45 | ||
46 | sub plugindata { | |
47 | return {}; | |
48 | } | |
49 | ||
50 | sub createSchema { | |
51 | my ($class) = @_; | |
52 | ||
53 | my $pdata = $class->private(); | |
54 | my $propertyList = $pdata->{propertyList}; | |
a3530f55 DM |
55 | my $plugins = $pdata->{plugins}; |
56 | ||
57 | my $props = {}; | |
58 | ||
59 | my $copy_property = sub { | |
60 | my ($src) = @_; | |
61 | ||
62 | my $res = {}; | |
63 | foreach my $k (keys %$src) { | |
64 | $res->{$k} = $src->{$k}; | |
65 | } | |
66 | ||
67 | return $res; | |
68 | }; | |
69 | ||
70 | foreach my $p (keys %$propertyList) { | |
71 | next if $p eq 'type'; | |
72 | if (!$propertyList->{$p}->{optional}) { | |
73 | $props->{$p} = $propertyList->{$p}; | |
74 | next; | |
75 | } | |
76 | ||
77 | my $required = 1; | |
78 | ||
79 | my $copts = $class->options(); | |
80 | $required = 0 if defined($copts->{$p}) && $copts->{$p}->{optional}; | |
81 | ||
82 | foreach my $t (keys %$plugins) { | |
83 | my $opts = $pdata->{options}->{$t} || {}; | |
84 | $required = 0 if !defined($opts->{$p}) || $opts->{$p}->{optional}; | |
85 | } | |
86 | ||
87 | if ($required) { | |
88 | # make a copy, because we modify the optional property | |
89 | my $res = &$copy_property($propertyList->{$p}); | |
90 | $res->{optional} = 0; | |
91 | $props->{$p} = $res; | |
92 | } else { | |
93 | $props->{$p} = $propertyList->{$p}; | |
94 | } | |
95 | } | |
212b08e8 DM |
96 | |
97 | return { | |
98 | type => "object", | |
99 | additionalProperties => 0, | |
a3530f55 | 100 | properties => $props, |
212b08e8 DM |
101 | }; |
102 | } | |
103 | ||
104 | sub updateSchema { | |
105 | my ($class) = @_; | |
106 | ||
107 | my $pdata = $class->private(); | |
108 | my $propertyList = $pdata->{propertyList}; | |
109 | my $plugins = $pdata->{plugins}; | |
110 | ||
111 | my $props = {}; | |
112 | ||
113 | foreach my $p (keys %$propertyList) { | |
114 | next if $p eq 'type'; | |
115 | if (!$propertyList->{$p}->{optional}) { | |
116 | $props->{$p} = $propertyList->{$p}; | |
117 | next; | |
118 | } | |
516dfb55 DM |
119 | |
120 | my $modifyable = 0; | |
121 | ||
212b08e8 | 122 | foreach my $t (keys %$plugins) { |
516dfb55 | 123 | my $opts = $pdata->{options}->{$t} || {}; |
212b08e8 | 124 | next if !defined($opts->{$p}); |
516dfb55 | 125 | $modifyable = 1 if !$opts->{$p}->{fixed}; |
212b08e8 | 126 | } |
516dfb55 DM |
127 | next if !$modifyable; |
128 | ||
129 | $props->{$p} = $propertyList->{$p}; | |
212b08e8 DM |
130 | } |
131 | ||
dc5eae7d | 132 | $props->{digest} = get_standard_option('pve-config-digest'); |
212b08e8 DM |
133 | |
134 | $props->{delete} = { | |
135 | type => 'string', format => 'pve-configid-list', | |
136 | description => "A list of settings you want to delete.", | |
137 | maxLength => 4096, | |
138 | optional => 1, | |
139 | }; | |
140 | ||
141 | return { | |
142 | type => "object", | |
143 | additionalProperties => 0, | |
144 | properties => $props, | |
145 | }; | |
146 | } | |
147 | ||
148 | sub init { | |
149 | my ($class) = @_; | |
150 | ||
151 | my $pdata = $class->private(); | |
152 | ||
153 | foreach my $k (qw(options plugins plugindata propertyList)) { | |
154 | $pdata->{$k} = {} if !$pdata->{$k}; | |
155 | } | |
156 | ||
157 | my $plugins = $pdata->{plugins}; | |
158 | my $propertyList = $pdata->{propertyList}; | |
159 | ||
160 | foreach my $type (keys %$plugins) { | |
161 | my $props = $plugins->{$type}->properties(); | |
162 | foreach my $p (keys %$props) { | |
b732bea7 | 163 | die "duplicate property '$p'" if defined($propertyList->{$p}); |
212b08e8 DM |
164 | my $res = $propertyList->{$p} = {}; |
165 | my $data = $props->{$p}; | |
166 | for my $a (keys %$data) { | |
167 | $res->{$a} = $data->{$a}; | |
168 | } | |
169 | $res->{optional} = 1; | |
170 | } | |
171 | } | |
172 | ||
173 | foreach my $type (keys %$plugins) { | |
174 | my $opts = $plugins->{$type}->options(); | |
175 | foreach my $p (keys %$opts) { | |
176 | die "undefined property '$p'" if !$propertyList->{$p}; | |
177 | } | |
178 | $pdata->{options}->{$type} = $opts; | |
179 | } | |
180 | ||
181 | $propertyList->{type}->{type} = 'string'; | |
182 | $propertyList->{type}->{enum} = [keys %$plugins]; | |
183 | } | |
184 | ||
185 | sub lookup { | |
186 | my ($class, $type) = @_; | |
187 | ||
188 | my $pdata = $class->private(); | |
189 | my $plugin = $pdata->{plugins}->{$type}; | |
190 | ||
191 | die "unknown section type '$type'\n" if !$plugin; | |
192 | ||
193 | return $plugin; | |
194 | } | |
195 | ||
196 | sub lookup_types { | |
197 | my ($class) = @_; | |
198 | ||
199 | my $pdata = $class->private(); | |
200 | ||
201 | return [ keys %{$pdata->{plugins}} ]; | |
202 | } | |
203 | ||
204 | sub decode_value { | |
205 | my ($class, $type, $key, $value) = @_; | |
206 | ||
207 | return $value; | |
208 | } | |
209 | ||
210 | sub encode_value { | |
211 | my ($class, $type, $key, $value) = @_; | |
212 | ||
213 | return $value; | |
214 | } | |
215 | ||
216 | sub check_value { | |
217 | my ($class, $type, $key, $value, $storeid, $skipSchemaCheck) = @_; | |
218 | ||
219 | my $pdata = $class->private(); | |
220 | ||
221 | return $value if $key eq 'type' && $type eq $value; | |
222 | ||
223 | my $opts = $pdata->{options}->{$type}; | |
224 | die "unknown section type '$type'\n" if !$opts; | |
225 | ||
226 | die "unexpected property '$key'\n" if !defined($opts->{$key}); | |
227 | ||
228 | my $schema = $pdata->{propertyList}->{$key}; | |
229 | die "unknown property type\n" if !$schema; | |
230 | ||
231 | my $ct = $schema->{type}; | |
232 | ||
233 | $value = 1 if $ct eq 'boolean' && !defined($value); | |
234 | ||
235 | die "got undefined value\n" if !defined($value); | |
236 | ||
237 | die "property contains a line feed\n" if $value =~ m/[\n\r]/; | |
238 | ||
239 | if (!$skipSchemaCheck) { | |
240 | my $errors = {}; | |
241 | PVE::JSONSchema::check_prop($value, $schema, '', $errors); | |
242 | if (scalar(keys %$errors)) { | |
243 | die "$errors->{$key}\n" if $errors->{$key}; | |
244 | die "$errors->{_root}\n" if $errors->{_root}; | |
245 | die "unknown error\n"; | |
246 | } | |
247 | } | |
248 | ||
249 | return $value; | |
250 | } | |
251 | ||
252 | sub parse_section_header { | |
253 | my ($class, $line) = @_; | |
254 | ||
255 | if ($line =~ m/^(\S+):\s*(\S+)\s*$/) { | |
256 | my ($type, $sectionId) = ($1, $2); | |
257 | my $errmsg = undef; # set if you want to skip whole section | |
258 | my $config = {}; # to return additional attributes | |
259 | return ($type, $sectionId, $errmsg, $config); | |
260 | } | |
261 | return undef; | |
262 | } | |
263 | ||
264 | sub format_section_header { | |
265 | my ($class, $type, $sectionId) = @_; | |
266 | ||
267 | return "$type: $sectionId\n"; | |
268 | } | |
269 | ||
270 | ||
271 | sub parse_config { | |
272 | my ($class, $filename, $raw) = @_; | |
273 | ||
274 | my $pdata = $class->private(); | |
275 | ||
276 | my $ids = {}; | |
277 | my $order = {}; | |
278 | ||
3c4d612a WB |
279 | $raw = '' if !defined($raw); |
280 | ||
281 | my $digest = Digest::SHA::sha1_hex($raw); | |
212b08e8 DM |
282 | |
283 | my $pri = 1; | |
284 | ||
285 | my $lineno = 0; | |
3c4d612a WB |
286 | my @lines = split(/\n/, $raw); |
287 | my $nextline = sub { | |
288 | while (my $line = shift @lines) { | |
289 | $lineno++; | |
290 | return $line if $line !~ /^\s*(?:#|$)/; | |
291 | } | |
292 | }; | |
212b08e8 | 293 | |
3c4d612a | 294 | while (my $line = &$nextline()) { |
212b08e8 DM |
295 | my $errprefix = "file $filename line $lineno"; |
296 | ||
297 | my ($type, $sectionId, $errmsg, $config) = $class->parse_section_header($line); | |
298 | if ($config) { | |
299 | my $ignore = 0; | |
300 | ||
301 | my $plugin; | |
302 | ||
303 | if ($errmsg) { | |
304 | $ignore = 1; | |
305 | chomp $errmsg; | |
306 | warn "$errprefix (skip section '$sectionId'): $errmsg\n"; | |
307 | } elsif (!$type) { | |
308 | $ignore = 1; | |
309 | warn "$errprefix (skip section '$sectionId'): missing type - internal error\n"; | |
310 | } else { | |
311 | if (!($plugin = $pdata->{plugins}->{$type})) { | |
312 | $ignore = 1; | |
313 | warn "$errprefix (skip section '$sectionId'): unsupported type '$type'\n"; | |
314 | } | |
315 | } | |
316 | ||
3c4d612a | 317 | while ($line = &$nextline()) { |
212b08e8 DM |
318 | next if $ignore; # skip |
319 | ||
320 | $errprefix = "file $filename line $lineno"; | |
321 | ||
322 | if ($line =~ m/^\s+(\S+)(\s+(.*\S))?\s*$/) { | |
323 | my ($k, $v) = ($1, $3); | |
324 | ||
325 | eval { | |
326 | die "duplicate attribute\n" if defined($config->{$k}); | |
327 | $config->{$k} = $plugin->check_value($type, $k, $v, $sectionId); | |
328 | }; | |
329 | warn "$errprefix (section '$sectionId') - unable to parse value of '$k': $@" if $@; | |
330 | ||
331 | } else { | |
332 | warn "$errprefix (section '$sectionId') - ignore config line: $line\n"; | |
333 | } | |
334 | } | |
335 | ||
336 | if (!$ignore && $type && $plugin && $config) { | |
337 | $config->{type} = $type; | |
338 | eval { $ids->{$sectionId} = $plugin->check_config($sectionId, $config, 1, 1); }; | |
339 | warn "$errprefix (skip section '$sectionId'): $@" if $@; | |
340 | $order->{$sectionId} = $pri++; | |
341 | } | |
342 | ||
343 | } else { | |
344 | warn "$errprefix - ignore config line: $line\n"; | |
345 | } | |
346 | } | |
347 | ||
348 | ||
349 | my $cfg = { ids => $ids, order => $order, digest => $digest}; | |
350 | ||
351 | return $cfg; | |
352 | } | |
353 | ||
354 | sub check_config { | |
355 | my ($class, $sectionId, $config, $create, $skipSchemaCheck) = @_; | |
356 | ||
357 | my $type = $class->type(); | |
358 | my $pdata = $class->private(); | |
359 | my $opts = $pdata->{options}->{$type}; | |
360 | ||
361 | my $settings = { type => $type }; | |
362 | ||
363 | foreach my $k (keys %$config) { | |
364 | my $value = $config->{$k}; | |
365 | ||
366 | die "can't change value of fixed parameter '$k'\n" | |
367 | if !$create && $opts->{$k}->{fixed}; | |
368 | ||
369 | if (defined($value)) { | |
370 | my $tmp = $class->check_value($type, $k, $value, $sectionId, $skipSchemaCheck); | |
371 | $settings->{$k} = $class->decode_value($type, $k, $tmp); | |
372 | } else { | |
373 | die "got undefined value for option '$k'\n"; | |
374 | } | |
375 | } | |
376 | ||
377 | if ($create) { | |
378 | # check if we have a value for all required options | |
379 | foreach my $k (keys %$opts) { | |
380 | next if $opts->{$k}->{optional}; | |
381 | die "missing value for required option '$k'\n" | |
382 | if !defined($config->{$k}); | |
383 | } | |
384 | } | |
385 | ||
386 | return $settings; | |
387 | } | |
388 | ||
389 | my $format_config_line = sub { | |
390 | my ($schema, $key, $value) = @_; | |
391 | ||
392 | my $ct = $schema->{type}; | |
393 | ||
394 | if ($ct eq 'boolean') { | |
395 | return $value ? "\t$key\n" : ''; | |
396 | } else { | |
397 | return "\t$key $value\n" if "$value" ne ''; | |
398 | } | |
399 | }; | |
400 | ||
401 | sub write_config { | |
402 | my ($class, $filename, $cfg) = @_; | |
403 | ||
404 | my $pdata = $class->private(); | |
405 | my $propertyList = $pdata->{propertyList}; | |
406 | ||
407 | my $out = ''; | |
408 | ||
409 | my $ids = $cfg->{ids}; | |
410 | my $order = $cfg->{order}; | |
411 | ||
412 | my $maxpri = 0; | |
413 | foreach my $sectionId (keys %$ids) { | |
414 | my $pri = $order->{$sectionId}; | |
415 | $maxpri = $pri if $pri && $pri > $maxpri; | |
416 | } | |
417 | foreach my $sectionId (keys %$ids) { | |
418 | if (!defined ($order->{$sectionId})) { | |
419 | $order->{$sectionId} = ++$maxpri; | |
420 | } | |
421 | } | |
422 | ||
423 | foreach my $sectionId (sort {$order->{$a} <=> $order->{$b}} keys %$ids) { | |
424 | my $scfg = $ids->{$sectionId}; | |
425 | my $type = $scfg->{type}; | |
426 | my $opts = $pdata->{options}->{$type}; | |
427 | ||
428 | die "unknown section type '$type'\n" if !$opts; | |
429 | ||
430 | my $data = $class->format_section_header($type, $sectionId); | |
431 | if ($scfg->{comment}) { | |
432 | my $k = 'comment'; | |
433 | my $v = $class->encode_value($type, $k, $scfg->{$k}); | |
434 | $data .= &$format_config_line($propertyList->{$k}, $k, $v); | |
435 | } | |
436 | ||
437 | $data .= "\tdisable\n" if $scfg->{disable}; | |
438 | ||
439 | my $done_hash = { comment => 1, disable => 1}; | |
440 | ||
441 | foreach my $k (keys %$opts) { | |
442 | next if $opts->{$k}->{optional}; | |
443 | $done_hash->{$k} = 1; | |
444 | my $v = $scfg->{$k}; | |
445 | die "section '$sectionId' - missing value for required option '$k'\n" | |
446 | if !defined ($v); | |
447 | $v = $class->encode_value($type, $k, $v); | |
448 | $data .= &$format_config_line($propertyList->{$k}, $k, $v); | |
449 | } | |
450 | ||
451 | foreach my $k (keys %$opts) { | |
452 | next if defined($done_hash->{$k}); | |
453 | my $v = $scfg->{$k}; | |
454 | next if !defined($v); | |
455 | $v = $class->encode_value($type, $k, $v); | |
456 | $data .= &$format_config_line($propertyList->{$k}, $k, $v); | |
457 | } | |
458 | ||
459 | $out .= "$data\n"; | |
460 | } | |
461 | ||
462 | return $out; | |
463 | } | |
464 | ||
465 | sub assert_if_modified { | |
466 | my ($cfg, $digest) = @_; | |
467 | ||
a345b9d5 | 468 | PVE::Tools::assert_if_modified($cfg->{digest}, $digest); |
212b08e8 DM |
469 | } |
470 | ||
471 | 1; |