| 1 |
package Whatpm::ContentChecker; |
| 2 |
use strict; |
| 3 |
require Whatpm::ContentChecker; |
| 4 |
|
| 5 |
require Whatpm::URIChecker; |
| 6 |
|
| 7 |
my $ATOM_NS = q<http://www.w3.org/2005/Atom>; |
| 8 |
my $THR_NS = q<http://purl.org/syndication/thread/1.0>; |
| 9 |
my $LINK_REL = q<http://www.iana.org/assignments/relation/>; |
| 10 |
|
| 11 |
sub FEATURE_RFC4287 () { |
| 12 |
Whatpm::ContentChecker::FEATURE_STATUS_CR | |
| 13 |
Whatpm::ContentChecker::FEATURE_ALLOWED |
| 14 |
} |
| 15 |
|
| 16 |
sub FEATURE_RFC4685 () { |
| 17 |
Whatpm::ContentChecker::FEATURE_STATUS_CR | |
| 18 |
Whatpm::ContentChecker::FEATURE_ALLOWED |
| 19 |
} |
| 20 |
|
| 21 |
## MUST be well-formed XML (RFC 4287 references XML 1.0 REC 20040204) |
| 22 |
|
| 23 |
## NOTE: Commants and PIs are not explicitly allowed. |
| 24 |
|
| 25 |
our $AttrChecker; |
| 26 |
|
| 27 |
## Any element MAY have xml:base, xml:lang |
| 28 |
my $GetAtomAttrsChecker = sub { |
| 29 |
my $element_specific_checker = shift; |
| 30 |
my $element_specific_status = shift; |
| 31 |
return sub { |
| 32 |
my ($self, $todo, $element_state) = @_; |
| 33 |
for my $attr (@{$todo->{node}->attributes}) { |
| 34 |
my $attr_ns = $attr->namespace_uri; |
| 35 |
$attr_ns = '' unless defined $attr_ns; |
| 36 |
my $attr_ln = $attr->manakai_local_name; |
| 37 |
my $checker; |
| 38 |
if ($attr_ns eq '') { |
| 39 |
$checker = $element_specific_checker->{$attr_ln}; |
| 40 |
} else { |
| 41 |
$checker = $AttrChecker->{$attr_ns}->{$attr_ln} |
| 42 |
|| $AttrChecker->{$attr_ns}->{''}; |
| 43 |
} |
| 44 |
if ($checker) { |
| 45 |
$checker->($self, $attr, $todo, $element_state); |
| 46 |
} elsif ($attr_ln eq '') { |
| 47 |
# |
| 48 |
} else { |
| 49 |
$self->{onerror}->(node => $attr, level => 'unsupported', |
| 50 |
type => 'attribute'); |
| 51 |
## ISSUE: No comformance createria for unknown attributes in the spec |
| 52 |
} |
| 53 |
|
| 54 |
if ($attr_ns eq '') { |
| 55 |
$self->_attr_status_info ($attr, $element_specific_status->{$attr_ln}); |
| 56 |
} |
| 57 |
## TODO: global attribute |
| 58 |
} |
| 59 |
}; |
| 60 |
}; # $GetAtomAttrsChecker |
| 61 |
|
| 62 |
my $AtomLanguageTagAttrChecker = sub { |
| 63 |
## NOTE: See also $HTMLLanguageTagAttrChecker in HTML.pm. |
| 64 |
|
| 65 |
my ($self, $attr) = @_; |
| 66 |
my $value = $attr->value; |
| 67 |
require Whatpm::LangTag; |
| 68 |
Whatpm::LangTag->check_rfc3066_language_tag ($value, sub { |
| 69 |
my %opt = @_; |
| 70 |
my $type = 'LangTag:'.$opt{type}; |
| 71 |
$type .= ':' . $opt{subtag} if defined $opt{subtag}; |
| 72 |
$self->{onerror}->(node => $attr, type => $type, value => $opt{value}, |
| 73 |
level => $opt{level}); |
| 74 |
}); |
| 75 |
## ISSUE: RFC 4646 (3066bis)? |
| 76 |
}; # $AtomLanguageTagAttrChecker |
| 77 |
|
| 78 |
my %AtomChecker = ( |
| 79 |
%Whatpm::ContentChecker::AnyChecker, |
| 80 |
status => FEATURE_RFC4287, |
| 81 |
check_attrs => $GetAtomAttrsChecker->({}, {}), |
| 82 |
); |
| 83 |
|
| 84 |
my %AtomTextConstruct = ( |
| 85 |
%AtomChecker, |
| 86 |
check_start => sub { |
| 87 |
my ($self, $item, $element_state) = @_; |
| 88 |
$element_state->{type} = 'text'; |
| 89 |
$element_state->{value} = ''; |
| 90 |
}, |
| 91 |
check_attrs => $GetAtomAttrsChecker->({ |
| 92 |
type => sub { |
| 93 |
my ($self, $attr, $item, $element_state) = @_; |
| 94 |
my $value = $attr->value; |
| 95 |
if ($value eq 'text' or $value eq 'html' or $value eq 'xhtml') { # MUST |
| 96 |
$element_state->{type} = $value; |
| 97 |
} else { |
| 98 |
## NOTE: IMT MUST NOT be used here. |
| 99 |
$self->{onerror}->(node => $attr, type => 'keyword:invalid'); |
| 100 |
} |
| 101 |
}, # checked in |checker| |
| 102 |
}, { |
| 103 |
type => FEATURE_RFC4287, |
| 104 |
}), |
| 105 |
check_child_element => sub { |
| 106 |
my ($self, $item, $child_el, $child_nsuri, $child_ln, |
| 107 |
$child_is_transparent, $element_state) = @_; |
| 108 |
if ($self->{minus_elements}->{$child_nsuri}->{$child_ln}) { |
| 109 |
$self->{onerror}->(node => $child_el, |
| 110 |
type => 'element not allowed:minus', |
| 111 |
level => $self->{must_level}); |
| 112 |
} elsif ($self->{plus_elements}->{$child_nsuri}->{$child_ln}) { |
| 113 |
# |
| 114 |
} else { |
| 115 |
if ($element_state->{type} eq 'text' or |
| 116 |
$element_state->{type} eq 'html') { # MUST NOT |
| 117 |
$self->{onerror}->(node => $child_el, |
| 118 |
type => 'element not allowed:atom|TextConstruct', |
| 119 |
level => $self->{must_level}); |
| 120 |
} elsif ($element_state->{type} eq 'xhtml') { |
| 121 |
if ($child_nsuri eq q<http://www.w3.org/1999/xhtml> and |
| 122 |
$child_ln eq 'div') { # MUST |
| 123 |
if ($element_state->{has_div}) { |
| 124 |
$self->{onerror} |
| 125 |
->(node => $child_el, |
| 126 |
type => 'element not allowed:atom|TextConstruct', |
| 127 |
level => $self->{must_level}); |
| 128 |
} else { |
| 129 |
$element_state->{has_div} = 1; |
| 130 |
## TODO: SHOULD be suitable for handling as HTML [XHTML10] |
| 131 |
} |
| 132 |
} else { |
| 133 |
$self->{onerror}->(node => $child_el, |
| 134 |
type => 'element not allowed:atom|TextConstruct', |
| 135 |
level => $self->{must_level}); |
| 136 |
} |
| 137 |
} else { |
| 138 |
die "atom:TextConstruct type error: $element_state->{type}"; |
| 139 |
} |
| 140 |
} |
| 141 |
}, |
| 142 |
check_child_text => sub { |
| 143 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 144 |
if ($element_state->{type} eq 'text') { |
| 145 |
# |
| 146 |
} elsif ($element_state->{type} eq 'html') { |
| 147 |
$element_state->{value} .= $child_node->text_content; |
| 148 |
## NOTE: Markup MUST be escaped. |
| 149 |
} elsif ($element_state->{type} eq 'xhtml') { |
| 150 |
if ($has_significant) { |
| 151 |
$self->{onerror}->(node => $child_node, |
| 152 |
type => 'character not allowed:atom|TextConstruct', |
| 153 |
level => $self->{must_level}); |
| 154 |
} |
| 155 |
} else { |
| 156 |
die "atom:TextConstruct type error: $element_state->{type}"; |
| 157 |
} |
| 158 |
}, |
| 159 |
check_end => sub { |
| 160 |
my ($self, $item, $element_state) = @_; |
| 161 |
if ($element_state->{type} eq 'xhtml') { |
| 162 |
unless ($element_state->{has_div}) { |
| 163 |
$self->{onerror}->(node => $item->{node}, |
| 164 |
type => 'element missing:div', |
| 165 |
level => $self->{must_level}); |
| 166 |
} |
| 167 |
} elsif ($element_state->{type} eq 'html') { |
| 168 |
## TODO: SHOULD be suitable for handling as HTML [HTML4] |
| 169 |
# markup MUST be escaped |
| 170 |
$self->{onsubdoc}->({s => $element_state->{value}, |
| 171 |
container_node => $item->{node}, |
| 172 |
media_type => 'text/html', |
| 173 |
inner_html_element => 'div', |
| 174 |
is_char_string => 1}); |
| 175 |
} |
| 176 |
|
| 177 |
$AtomChecker{check_end}->(@_); |
| 178 |
}, |
| 179 |
); # %AtomTextConstruct |
| 180 |
|
| 181 |
my %AtomPersonConstruct = ( |
| 182 |
%AtomChecker, |
| 183 |
check_child_element => sub { |
| 184 |
my ($self, $item, $child_el, $child_nsuri, $child_ln, |
| 185 |
$child_is_transparent, $element_state) = @_; |
| 186 |
if ($self->{minus_elements}->{$child_nsuri}->{$child_ln}) { |
| 187 |
$self->{onerror}->(node => $child_el, |
| 188 |
type => 'element not allowed:minus', |
| 189 |
level => $self->{must_level}); |
| 190 |
} elsif ($self->{plus_elements}->{$child_nsuri}->{$child_ln}) { |
| 191 |
# |
| 192 |
} elsif ($child_nsuri eq $ATOM_NS) { |
| 193 |
if ($child_ln eq 'name') { |
| 194 |
if ($element_state->{has_name}) { |
| 195 |
$self->{onerror} |
| 196 |
->(node => $child_el, |
| 197 |
type => 'element not allowed:atom|PersonConstruct', |
| 198 |
level => $self->{must_level}); |
| 199 |
} else { |
| 200 |
$element_state->{has_name} = 1; |
| 201 |
} |
| 202 |
} elsif ($child_ln eq 'uri') { |
| 203 |
if ($element_state->{has_uri}) { |
| 204 |
$self->{onerror} |
| 205 |
->(node => $child_el, |
| 206 |
type => 'element not allowed:atom|PersonConstruct', |
| 207 |
level => $self->{must_level}); |
| 208 |
} else { |
| 209 |
$element_state->{has_uri} = 1; |
| 210 |
} |
| 211 |
} elsif ($child_ln eq 'email') { |
| 212 |
if ($element_state->{has_email}) { |
| 213 |
$self->{onerror} |
| 214 |
->(node => $child_el, |
| 215 |
type => 'element not allowed:atom|PersonConstruct', |
| 216 |
level => $self->{must_level}); |
| 217 |
} else { |
| 218 |
$element_state->{has_email} = 1; |
| 219 |
} |
| 220 |
} else { |
| 221 |
$self->{onerror} |
| 222 |
->(node => $child_el, |
| 223 |
type => 'element not allowed:atom|PersonConstruct', |
| 224 |
level => $self->{must_level}); |
| 225 |
} |
| 226 |
} else { |
| 227 |
$self->{onerror} |
| 228 |
->(node => $child_el, |
| 229 |
type => 'element not allowed:atom|PersonConstruct', |
| 230 |
level => $self->{must_level}); |
| 231 |
} |
| 232 |
## TODO: extension element |
| 233 |
}, |
| 234 |
check_child_text => sub { |
| 235 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 236 |
if ($has_significant) { |
| 237 |
$self->{onerror}->(node => $child_node, |
| 238 |
type => 'character not allowed:atom|PersonConstruct', |
| 239 |
level => $self->{must_level}); |
| 240 |
} |
| 241 |
}, |
| 242 |
check_end => sub { |
| 243 |
my ($self, $item, $element_state) = @_; |
| 244 |
|
| 245 |
unless ($element_state->{has_name}) { |
| 246 |
$self->{onerror}->(node => $item->{node}, |
| 247 |
type => 'element missing:atom|name', |
| 248 |
level => $self->{must_level}); |
| 249 |
} |
| 250 |
|
| 251 |
$AtomChecker{check_end}->(@_); |
| 252 |
}, |
| 253 |
); # %AtomPersonConstruct |
| 254 |
|
| 255 |
our $Element; |
| 256 |
|
| 257 |
$Element->{$ATOM_NS}->{''} = { |
| 258 |
%AtomChecker, |
| 259 |
status => 0, |
| 260 |
}; |
| 261 |
|
| 262 |
$Element->{$ATOM_NS}->{name} = { |
| 263 |
%AtomChecker, |
| 264 |
|
| 265 |
## NOTE: Strictly speaking, structure and semantics for atom:name |
| 266 |
## element outside of Person construct is not defined. |
| 267 |
|
| 268 |
## NOTE: No constraint. |
| 269 |
}; |
| 270 |
|
| 271 |
$Element->{$ATOM_NS}->{uri} = { |
| 272 |
%AtomChecker, |
| 273 |
|
| 274 |
## NOTE: Strictly speaking, structure and semantics for atom:uri |
| 275 |
## element outside of Person construct is not defined. |
| 276 |
|
| 277 |
## NOTE: Elements are not explicitly disallowed. |
| 278 |
|
| 279 |
check_start => sub { |
| 280 |
my ($self, $item, $element_state) = @_; |
| 281 |
$element_state->{value} = ''; |
| 282 |
}, |
| 283 |
check_child_text => sub { |
| 284 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 285 |
$element_state->{value} .= $child_node->data; |
| 286 |
}, |
| 287 |
check_end => sub { |
| 288 |
my ($self, $item, $element_state) = @_; |
| 289 |
|
| 290 |
## NOTE: There MUST NOT be any white space. |
| 291 |
Whatpm::URIChecker->check_iri_reference ($element_state->{value}, sub { |
| 292 |
my %opt = @_; |
| 293 |
$self->{onerror}->(node => $item->{node}, level => $opt{level}, |
| 294 |
type => 'URI::'.$opt{type}. |
| 295 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 296 |
}); |
| 297 |
|
| 298 |
$AtomChecker{check_end}->(@_); |
| 299 |
}, |
| 300 |
}; |
| 301 |
|
| 302 |
$Element->{$ATOM_NS}->{email} = { |
| 303 |
%AtomChecker, |
| 304 |
|
| 305 |
## NOTE: Strictly speaking, structure and semantics for atom:email |
| 306 |
## element outside of Person construct is not defined. |
| 307 |
|
| 308 |
## NOTE: Elements are not explicitly disallowed. |
| 309 |
|
| 310 |
check_end => sub { |
| 311 |
my ($self, $item, $element_state) = @_; |
| 312 |
|
| 313 |
## TODO: addr-spec |
| 314 |
$self->{onerror}->(node => $item->{node}, |
| 315 |
type => 'addr-spec not supported', |
| 316 |
level => $self->{unsupported_level}); |
| 317 |
|
| 318 |
$AtomChecker{check_end}->(@_); |
| 319 |
}, |
| 320 |
}; |
| 321 |
|
| 322 |
## MUST NOT be any white space |
| 323 |
my %AtomDateConstruct = ( |
| 324 |
%AtomChecker, |
| 325 |
|
| 326 |
## NOTE: It does not explicitly say that there MUST NOT be any element. |
| 327 |
|
| 328 |
check_start => sub { |
| 329 |
my ($self, $item, $element_state) = @_; |
| 330 |
$element_state->{value} = ''; |
| 331 |
}, |
| 332 |
check_child_text => sub { |
| 333 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 334 |
$element_state->{value} .= $child_node->data; |
| 335 |
}, |
| 336 |
check_end => sub { |
| 337 |
my ($self, $item, $element_state) = @_; |
| 338 |
|
| 339 |
## MUST: RFC 3339 |date-time| with uppercase |T| and |Z| |
| 340 |
if ($element_state->{value} =~ /\A([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(?>\.[0-9]+)?(?>Z|[+-]([0-9]{2}):([0-9]{2}))\z/) { |
| 341 |
my ($y, $M, $d, $h, $m, $s, $zh, $zm) |
| 342 |
= ($1, $2, $3, $4, $5, $6, $7, $8); |
| 343 |
my $node = $item->{node}; |
| 344 |
|
| 345 |
## Check additional constraints described or referenced in |
| 346 |
## comments of ABNF rules for |date-time|. |
| 347 |
my $level = $self->{must_level}; |
| 348 |
if (0 < $M and $M < 13) { |
| 349 |
$self->{onerror}->(node => $node, type => 'datetime:bad day', |
| 350 |
level => $level) |
| 351 |
if $d < 1 or |
| 352 |
$d > [0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]->[$M]; |
| 353 |
$self->{onerror}->(node => $node, type => 'datetime:bad day', |
| 354 |
level => $level) |
| 355 |
if $M == 2 and $d == 29 and |
| 356 |
not ($y % 400 == 0 or ($y % 4 == 0 and $y % 100 != 0)); |
| 357 |
} else { |
| 358 |
$self->{onerror}->(node => $node, type => 'datetime:bad month', |
| 359 |
level => $level); |
| 360 |
} |
| 361 |
$self->{onerror}->(node => $node, type => 'datetime:bad hour', |
| 362 |
level => $level) if $h > 23; |
| 363 |
$self->{onerror}->(node => $node, type => 'datetime:bad minute', |
| 364 |
level => $level) if $m > 59; |
| 365 |
$self->{onerror}->(node => $node, type => 'datetime:bad second', |
| 366 |
level => $level) |
| 367 |
if $s > 60; ## NOTE: Validness of leap seconds are not checked. |
| 368 |
$self->{onerror}->(node => $node, type => 'datetime:bad timezone hour', |
| 369 |
level => $level) if $zh > 23; |
| 370 |
$self->{onerror}->(node => $node, type => 'datetime:bad timezone minute', |
| 371 |
level => $level) if $zm > 59; |
| 372 |
} else { |
| 373 |
$self->{onerror}->(node => $item->{node}, |
| 374 |
type => 'datetime:syntax error', |
| 375 |
level => $self->{must_level}); |
| 376 |
} |
| 377 |
## NOTE: SHOULD be accurate as possible (cannot be checked) |
| 378 |
|
| 379 |
$AtomChecker{check_end}->(@_); |
| 380 |
}, |
| 381 |
); # %AtomDateConstruct |
| 382 |
|
| 383 |
$Element->{$ATOM_NS}->{entry} = { |
| 384 |
%AtomChecker, |
| 385 |
is_root => 1, |
| 386 |
check_child_element => sub { |
| 387 |
my ($self, $item, $child_el, $child_nsuri, $child_ln, |
| 388 |
$child_is_transparent, $element_state) = @_; |
| 389 |
|
| 390 |
## NOTE: metadata elements, followed by atom:entry* (no explicit MAY) |
| 391 |
|
| 392 |
if ($self->{minus_elements}->{$child_nsuri}->{$child_ln}) { |
| 393 |
$self->{onerror}->(node => $child_el, |
| 394 |
type => 'element not allowed:minus', |
| 395 |
level => $self->{must_level}); |
| 396 |
} elsif ($self->{plus_elements}->{$child_nsuri}->{$child_ln}) { |
| 397 |
# |
| 398 |
} elsif ($child_nsuri eq $ATOM_NS) { |
| 399 |
my $not_allowed; |
| 400 |
if ({ # MUST (0, 1) |
| 401 |
content => 1, |
| 402 |
id => 1, |
| 403 |
published => 1, |
| 404 |
rights => 1, |
| 405 |
source => 1, |
| 406 |
summary => 1, |
| 407 |
title => 1, |
| 408 |
updated => 1, |
| 409 |
}->{$child_ln}) { |
| 410 |
unless ($element_state->{has_element}->{$child_ln}) { |
| 411 |
$element_state->{has_element}->{$child_ln} = 1; |
| 412 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 413 |
} else { |
| 414 |
$not_allowed = 1; |
| 415 |
} |
| 416 |
} elsif ($child_ln eq 'link') { # MAY |
| 417 |
if ($child_el->rel eq $LINK_REL . 'alternate') { |
| 418 |
my $type = $child_el->get_attribute_ns (undef, 'type'); |
| 419 |
$type = '' unless defined $type; |
| 420 |
my $hreflang = $child_el->get_attribute_ns (undef, 'hreflang'); |
| 421 |
$hreflang = '' unless defined $hreflang; |
| 422 |
my $key = 'link:'.(defined $type ? ':'.$type : '').':'. |
| 423 |
(defined $hreflang ? ':'.$hreflang : ''); |
| 424 |
unless ($element_state->{has_element}->{$key}) { |
| 425 |
$element_state->{has_element}->{$key} = 1; |
| 426 |
$element_state->{has_element}->{'link.alternate'} = 1; |
| 427 |
} else { |
| 428 |
$not_allowed = 1; |
| 429 |
} |
| 430 |
} |
| 431 |
|
| 432 |
## NOTE: MAY |
| 433 |
$not_allowed ||= $element_state->{has_element}->{entry}; |
| 434 |
} elsif ({ # MAY |
| 435 |
category => 1, |
| 436 |
contributor => 1, |
| 437 |
}->{$child_ln}) { |
| 438 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 439 |
} elsif ($child_ln eq 'author') { # MAY |
| 440 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 441 |
$element_state->{has_author} = 1; # ./author | ./source/author |
| 442 |
$element_state->{has_element}->{$child_ln} = 1; # ./author |
| 443 |
} else { |
| 444 |
$not_allowed = 1; |
| 445 |
} |
| 446 |
if ($not_allowed) { |
| 447 |
$self->{onerror}->(node => $child_el, type => 'element not allowed'); |
| 448 |
} |
| 449 |
} elsif ($child_nsuri eq $THR_NS and $child_ln eq 'in-reply-to') { |
| 450 |
## ISSUE: Where |thr:in-reply-to| is allowed is not explicit;y |
| 451 |
## defined in RFC 4685. |
| 452 |
# |
| 453 |
} else { |
| 454 |
## TODO: extension element |
| 455 |
$self->{onerror}->(node => $child_el, type => 'element not allowed'); |
| 456 |
} |
| 457 |
}, |
| 458 |
check_child_text => sub { |
| 459 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 460 |
if ($has_significant) { |
| 461 |
$self->{onerror}->(node => $child_node, type => 'character not allowed', |
| 462 |
level => $self->{must_level}); |
| 463 |
} |
| 464 |
}, |
| 465 |
check_end => sub { |
| 466 |
my ($self, $item, $element_state) = @_; |
| 467 |
|
| 468 |
if ($element_state->{has_author}) { |
| 469 |
## NOTE: There is either a child atom:author element |
| 470 |
## or a child atom:source element which contains an atom:author |
| 471 |
## child element. |
| 472 |
# |
| 473 |
} else { |
| 474 |
A: { |
| 475 |
my $root = $item->{node}->owner_document->document_element; |
| 476 |
if ($root and $root->manakai_local_name eq 'feed') { |
| 477 |
my $nsuri = $root->namespace_uri; |
| 478 |
if (defined $nsuri and $nsuri eq $ATOM_NS) { |
| 479 |
## NOTE: An Atom Feed Document. |
| 480 |
for my $root_child (@{$root->child_nodes}) { |
| 481 |
## NOTE: Entity references are not supported. |
| 482 |
next unless $root_child->node_type == 1; # ELEMENT_NODE |
| 483 |
next unless $root_child->manakai_local_name eq 'author'; |
| 484 |
my $root_child_nsuri = $root_child->namespace_uri; |
| 485 |
next unless defined $root_child_nsuri; |
| 486 |
next unless $root_child_nsuri eq $ATOM_NS; |
| 487 |
last A; |
| 488 |
} |
| 489 |
} |
| 490 |
} |
| 491 |
|
| 492 |
$self->{onerror}->(node => $item->{node}, |
| 493 |
type => 'element missing:atom|author', |
| 494 |
level => $self->{must_level}); |
| 495 |
} # A |
| 496 |
} |
| 497 |
|
| 498 |
unless ($element_state->{has_element}->{author}) { |
| 499 |
$item->{parent_state}->{has_no_author_entry} = 1; # for atom:feed's check |
| 500 |
} |
| 501 |
|
| 502 |
## TODO: If entry's with same id, then updated SHOULD be different |
| 503 |
|
| 504 |
unless ($element_state->{has_element}->{id}) { # MUST |
| 505 |
$self->{onerror}->(node => $item->{node}, |
| 506 |
type => 'element missing:atom|id'); |
| 507 |
} |
| 508 |
unless ($element_state->{has_element}->{title}) { # MUST |
| 509 |
$self->{onerror}->(node => $item->{node}, |
| 510 |
type => 'element missing:atom|title'); |
| 511 |
} |
| 512 |
unless ($element_state->{has_element}->{updated}) { # MUST |
| 513 |
$self->{onerror}->(node => $item->{node}, |
| 514 |
type => 'element missing:atom|updated'); |
| 515 |
} |
| 516 |
if (not $element_state->{has_element}->{content} and |
| 517 |
not $element_state->{has_element}->{'link.alternate'}) { |
| 518 |
$self->{onerror}->(node => $item->{node}, |
| 519 |
type => 'element missing:atom|link|alternate'); |
| 520 |
} |
| 521 |
|
| 522 |
if ($element_state->{require_summary} and |
| 523 |
not $element_state->{has_element}->{summary}) { |
| 524 |
$self->{onerror}->(node => $item->{node}, |
| 525 |
type => 'element missing:atom|summary', |
| 526 |
level => $self->{must_level}); |
| 527 |
} |
| 528 |
}, |
| 529 |
}; |
| 530 |
|
| 531 |
$Element->{$ATOM_NS}->{feed} = { |
| 532 |
%AtomChecker, |
| 533 |
is_root => 1, |
| 534 |
check_child_element => sub { |
| 535 |
my ($self, $item, $child_el, $child_nsuri, $child_ln, |
| 536 |
$child_is_transparent, $element_state) = @_; |
| 537 |
|
| 538 |
## NOTE: metadata elements, followed by atom:entry* (no explicit MAY) |
| 539 |
|
| 540 |
if ($self->{minus_elements}->{$child_nsuri}->{$child_ln}) { |
| 541 |
$self->{onerror}->(node => $child_el, |
| 542 |
type => 'element not allowed:minus', |
| 543 |
level => $self->{must_level}); |
| 544 |
} elsif ($self->{plus_elements}->{$child_nsuri}->{$child_ln}) { |
| 545 |
# |
| 546 |
} elsif ($child_nsuri eq $ATOM_NS) { |
| 547 |
my $not_allowed; |
| 548 |
if ($child_ln eq 'entry') { |
| 549 |
$element_state->{has_element}->{entry} = 1; |
| 550 |
} elsif ({ # MUST (0, 1) |
| 551 |
generator => 1, |
| 552 |
icon => 1, |
| 553 |
id => 1, |
| 554 |
logo => 1, |
| 555 |
rights => 1, |
| 556 |
subtitle => 1, |
| 557 |
title => 1, |
| 558 |
updated => 1, |
| 559 |
}->{$child_ln}) { |
| 560 |
unless ($element_state->{has_element}->{$child_ln}) { |
| 561 |
$element_state->{has_element}->{$child_ln} = 1; |
| 562 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 563 |
} else { |
| 564 |
$not_allowed = 1; |
| 565 |
} |
| 566 |
} elsif ($child_ln eq 'link') { |
| 567 |
my $rel = $child_el->rel; |
| 568 |
if ($rel eq $LINK_REL . 'alternate') { |
| 569 |
my $type = $child_el->get_attribute_ns (undef, 'type'); |
| 570 |
$type = '' unless defined $type; |
| 571 |
my $hreflang = $child_el->get_attribute_ns (undef, 'hreflang'); |
| 572 |
$hreflang = '' unless defined $hreflang; |
| 573 |
my $key = 'link:'.(defined $type ? ':'.$type : '').':'. |
| 574 |
(defined $hreflang ? ':'.$hreflang : ''); |
| 575 |
unless ($element_state->{has_element}->{$key}) { |
| 576 |
$element_state->{has_element}->{$key} = 1; |
| 577 |
} else { |
| 578 |
$not_allowed = 1; |
| 579 |
} |
| 580 |
} elsif ($rel eq $LINK_REL . 'self') { |
| 581 |
$element_state->{has_element}->{'link.self'} = 1; |
| 582 |
} |
| 583 |
|
| 584 |
## NOTE: MAY |
| 585 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 586 |
} elsif ({ # MAY |
| 587 |
category => 1, |
| 588 |
contributor => 1, |
| 589 |
}->{$child_ln}) { |
| 590 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 591 |
} elsif ($child_ln eq 'author') { # MAY |
| 592 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 593 |
$element_state->{has_element}->{author} = 1; |
| 594 |
} else { |
| 595 |
$not_allowed = 1; |
| 596 |
} |
| 597 |
$self->{onerror}->(node => $child_el, type => 'element not allowed') |
| 598 |
if $not_allowed; |
| 599 |
} else { |
| 600 |
## TODO: extension element |
| 601 |
$self->{onerror}->(node => $child_el, type => 'element not allowed'); |
| 602 |
} |
| 603 |
}, |
| 604 |
check_child_text => sub { |
| 605 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 606 |
if ($has_significant) { |
| 607 |
$self->{onerror}->(node => $child_node, type => 'character not allowed', |
| 608 |
level => $self->{must_level}); |
| 609 |
} |
| 610 |
}, |
| 611 |
check_end => sub { |
| 612 |
my ($self, $item, $element_state) = @_; |
| 613 |
|
| 614 |
if ($element_state->{has_no_author_entry} and |
| 615 |
not $element_state->{has_element}->{author}) { |
| 616 |
$self->{onerror}->(node => $item->{node}, |
| 617 |
type => 'element missing:atom|author', |
| 618 |
level => $self->{must_level}); |
| 619 |
## ISSUE: If there is no |atom:entry| element, |
| 620 |
## there should be an |atom:author| element? |
| 621 |
} |
| 622 |
|
| 623 |
## TODO: If entry's with same id, then updated SHOULD be different |
| 624 |
|
| 625 |
unless ($element_state->{has_element}->{id}) { # MUST |
| 626 |
$self->{onerror}->(node => $item->{node}, |
| 627 |
type => 'element missing:atom|id'); |
| 628 |
} |
| 629 |
unless ($element_state->{has_element}->{title}) { # MUST |
| 630 |
$self->{onerror}->(node => $item->{node}, |
| 631 |
type => 'element missing:atom|title'); |
| 632 |
} |
| 633 |
unless ($element_state->{has_element}->{updated}) { # MUST |
| 634 |
$self->{onerror}->(node => $item->{node}, |
| 635 |
type => 'element missing:atom|updated'); |
| 636 |
} |
| 637 |
unless ($element_state->{has_element}->{'link.self'}) { |
| 638 |
$self->{onerror}->(node => $item->{node}, level => 's', |
| 639 |
type => 'element missing:atom|link|self'); |
| 640 |
} |
| 641 |
|
| 642 |
$AtomChecker{check_end}->(@_); |
| 643 |
}, |
| 644 |
}; |
| 645 |
|
| 646 |
$Element->{$ATOM_NS}->{content} = { |
| 647 |
%AtomChecker, |
| 648 |
check_start => sub { |
| 649 |
my ($self, $item, $element_state) = @_; |
| 650 |
$element_state->{type} = 'text'; |
| 651 |
$element_state->{value} = ''; |
| 652 |
}, |
| 653 |
check_attrs => $GetAtomAttrsChecker->({ |
| 654 |
src => sub { |
| 655 |
my ($self, $attr, $item, $element_state) = @_; |
| 656 |
|
| 657 |
$element_state->{has_src} = 1; |
| 658 |
$item->{parent_state}->{require_summary} = 1; |
| 659 |
|
| 660 |
## NOTE: There MUST NOT be any white space. |
| 661 |
Whatpm::URIChecker->check_iri_reference ($attr->value, sub { |
| 662 |
my %opt = @_; |
| 663 |
$self->{onerror}->(node => $item->{node}, level => $opt{level}, |
| 664 |
type => 'URI::'.$opt{type}. |
| 665 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 666 |
}); |
| 667 |
}, |
| 668 |
type => sub { |
| 669 |
my ($self, $attr, $item, $element_state) = @_; |
| 670 |
|
| 671 |
$element_state->{has_type} = 1; |
| 672 |
|
| 673 |
my $value = $attr->value; |
| 674 |
if ($value eq 'text' or $value eq 'html' or $value eq 'xhtml') { |
| 675 |
# MUST |
| 676 |
} else { |
| 677 |
## NOTE: MUST be a MIME media type. What is "MIME media type"? |
| 678 |
my $lws0 = qr/(?>(?>\x0D\x0A)?[\x09\x20])*/; |
| 679 |
my $token = qr/[\x21\x23-\x27\x2A\x2B\x2D\x2E\x30-\x39\x41-\x5A\x5E-\x7E]+/; |
| 680 |
my $qs = qr/"(?>[\x00-\x0C\x0E-\x21\x23-\x5B\x5D-\x7E]|\x0D\x0A[\x09\x20]|\x5C[\x00-\x7F])*"/; |
| 681 |
if ($value =~ m#\A$lws0($token)$lws0/$lws0($token)$lws0((?>;$lws0$token$lws0=$lws0(?>$token|$qs)$lws0)*)\z#) { |
| 682 |
my @type = ($1, $2); |
| 683 |
my $param = $3; |
| 684 |
while ($param =~ s/^;$lws0($token)$lws0=$lws0(?>($token)|($qs))$lws0//) { |
| 685 |
if (defined $2) { |
| 686 |
push @type, $1 => $2; |
| 687 |
} else { |
| 688 |
my $n = $1; |
| 689 |
my $v = $2; |
| 690 |
$v =~ s/\\(.)/$1/gs; |
| 691 |
push @type, $n => $v; |
| 692 |
} |
| 693 |
} |
| 694 |
require Whatpm::IMTChecker; |
| 695 |
Whatpm::IMTChecker->check_imt (sub { |
| 696 |
my %opt = @_; |
| 697 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 698 |
type => 'IMT:'.$opt{type}); |
| 699 |
}, @type); |
| 700 |
} else { |
| 701 |
$self->{onerror}->(node => $attr, type => 'IMT:syntax error', |
| 702 |
level => $self->{must_level}); |
| 703 |
} |
| 704 |
} |
| 705 |
|
| 706 |
if ($value =~ m![+/][Xx][Mm][Ll]\z!) { |
| 707 |
## ISSUE: There is no definition for "XML media type" in RFC 3023. |
| 708 |
## Is |application/xml-dtd| an XML media type? |
| 709 |
$value = 'xml'; |
| 710 |
} elsif ($value =~ m!^[Tt][Ee][Xx][Tt]/!) { |
| 711 |
$value = 'mime_text'; |
| 712 |
} elsif ($value =~ m!^(?>message|multipart)/!i) { |
| 713 |
$self->{onerror}->(node => $attr, type => 'IMT:composite', |
| 714 |
level => $self->{must_level}); |
| 715 |
$item->{parent_state}->{require_summary} = 1; |
| 716 |
} else { |
| 717 |
$item->{parent_state}->{require_summary} = 1; |
| 718 |
} |
| 719 |
|
| 720 |
$element_state->{type} = $value; |
| 721 |
}, |
| 722 |
}, { |
| 723 |
src => FEATURE_RFC4287, |
| 724 |
type => FEATURE_RFC4287, |
| 725 |
}), |
| 726 |
check_child_element => sub { |
| 727 |
my ($self, $item, $child_el, $child_nsuri, $child_ln, |
| 728 |
$child_is_transparent, $element_state) = @_; |
| 729 |
|
| 730 |
if ($self->{minus_elements}->{$child_nsuri}->{$child_ln}) { |
| 731 |
$self->{onerror}->(node => $child_el, |
| 732 |
type => 'element not allowed:minus', |
| 733 |
level => $self->{must_level}); |
| 734 |
} elsif ($self->{plus_elements}->{$child_nsuri}->{$child_ln}) { |
| 735 |
# |
| 736 |
} else { |
| 737 |
if ($element_state->{type} eq 'text' or |
| 738 |
$element_state->{type} eq 'html' or |
| 739 |
$element_state->{type} eq 'mime_text') { |
| 740 |
# MUST NOT |
| 741 |
$self->{onerror}->(node => $child_el, |
| 742 |
type => 'element not allowed:atom|content', |
| 743 |
level => $self->{must_level}); |
| 744 |
} elsif ($element_state->{type} eq 'xhtml') { |
| 745 |
if ($element_state->{has_div}) { |
| 746 |
$self->{onerror}->(node => $child_el, |
| 747 |
type => 'element not allowed:atom|content', |
| 748 |
level => $self->{must_level}); |
| 749 |
} else { |
| 750 |
## TODO: SHOULD be suitable for handling as HTML [XHTML10] |
| 751 |
$element_state->{has_div} = 1; |
| 752 |
} |
| 753 |
} elsif ($element_state->{type} eq 'xml') { |
| 754 |
## MAY contain elements |
| 755 |
if ($element_state->{has_src}) { |
| 756 |
$self->{onerror}->(node => $child_el, |
| 757 |
type => 'element not allowed:atom|content', |
| 758 |
level => $self->{must_level}); |
| 759 |
} |
| 760 |
} else { |
| 761 |
## NOTE: Elements are not explicitly disallowed. |
| 762 |
} |
| 763 |
} |
| 764 |
}, |
| 765 |
## NOTE: If @src, the element MUST be empty. What is "empty"? |
| 766 |
## Is |<e><!----></e>| empty? |<e>&e;</e>| where |&e;| has |
| 767 |
## empty replacement tree shuld be empty, since Atom is defined |
| 768 |
## in terms of XML Information Set where entities are expanded. |
| 769 |
## (but what if |&e;| is an unexpanded entity?) |
| 770 |
check_child_text => sub { |
| 771 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 772 |
if ($has_significant) { |
| 773 |
if ($element_state->{has_src}) { |
| 774 |
$self->{onerror}->(node => $child_node, |
| 775 |
type => 'character not allowed', |
| 776 |
level => $self->{must_level}); |
| 777 |
} elsif ($element_state->{type} eq 'xhtml' or |
| 778 |
$element_state->{type} eq 'xml') { |
| 779 |
$self->{onerror}->(node => $child_node, |
| 780 |
type => 'character not allowed:atom|content', |
| 781 |
level => $self->{must_level}); |
| 782 |
} |
| 783 |
} |
| 784 |
|
| 785 |
$element_state->{value} .= $child_node->data; |
| 786 |
|
| 787 |
## NOTE: type=text/* has no further restriction (i.e. the content don't |
| 788 |
## have to conform to the definition of the type). |
| 789 |
}, |
| 790 |
check_end => sub { |
| 791 |
my ($self, $item, $element_state) = @_; |
| 792 |
|
| 793 |
if ($element_state->{has_src}) { |
| 794 |
if (not $element_state->{has_type}) { |
| 795 |
$self->{onerror}->(node => $item->{node}, |
| 796 |
type => 'attribute missing:type', |
| 797 |
level => $self->{should_level}); |
| 798 |
} elsif ($element_state->{type} eq 'text' or |
| 799 |
$element_state->{type} eq 'html' or |
| 800 |
$element_state->{type} eq 'xhtml') { |
| 801 |
$self->{onerror} |
| 802 |
->(node => $item->{node}->get_attribute_node_ns (undef, 'type'), |
| 803 |
type => 'not IMT', level => $self->{must_level}); |
| 804 |
} |
| 805 |
} |
| 806 |
|
| 807 |
if ($element_state->{type} eq 'xhtml') { |
| 808 |
unless ($element_state->{has_div}) { |
| 809 |
$self->{onerror}->(node => $item->{node}, |
| 810 |
type => 'element missing:div', |
| 811 |
level => $self->{must_level}); |
| 812 |
} |
| 813 |
} elsif ($element_state->{type} eq 'html') { |
| 814 |
## TODO: SHOULD be suitable for handling as HTML [HTML4] |
| 815 |
# markup MUST be escaped |
| 816 |
$self->{onsubdoc}->({s => $element_state->{value}, |
| 817 |
container_node => $item->{node}, |
| 818 |
media_type => 'text/html', |
| 819 |
inner_html_element => 'div', |
| 820 |
is_char_string => 1}); |
| 821 |
} elsif ($element_state->{type} eq 'xml') { |
| 822 |
## NOTE: SHOULD be suitable for handling as $value. |
| 823 |
## If no @src, this would normally mean it contains a |
| 824 |
## single child element that would serve as the root element. |
| 825 |
$self->{onerror}->(node => $item->{node}, |
| 826 |
level => $self->{unsupported_level}, |
| 827 |
type => 'atom|content not supported', |
| 828 |
value => $item->{node}->get_attribute_ns |
| 829 |
(undef, 'type')); |
| 830 |
} elsif ($element_state->{type} eq 'text' or |
| 831 |
$element_state->{type} eq 'mime-text') { |
| 832 |
# |
| 833 |
} else { |
| 834 |
## TODO: $s = valid Base64ed [RFC 3548] where |
| 835 |
## MAY leading and following "white space" (what?) |
| 836 |
## and lines separated by a single U+000A |
| 837 |
|
| 838 |
## NOTE: SHOULD be suitable for the indicated media type. |
| 839 |
$self->{onerror}->(node => $item->{node}, |
| 840 |
level => $self->{unsupported_level}, |
| 841 |
type => 'atom|content not supported', |
| 842 |
value => $item->{node}->get_attribute_ns |
| 843 |
(undef, 'type')); |
| 844 |
} |
| 845 |
|
| 846 |
$AtomChecker{check_end}->(@_); |
| 847 |
}, |
| 848 |
}; |
| 849 |
## TODO: Tests for <html:nest/> in <atom:content/> |
| 850 |
|
| 851 |
$Element->{$ATOM_NS}->{author} = \%AtomPersonConstruct; |
| 852 |
|
| 853 |
$Element->{$ATOM_NS}->{category} = { |
| 854 |
%AtomChecker, |
| 855 |
check_attrs => $GetAtomAttrsChecker->({ |
| 856 |
label => sub { 1 }, # no value constraint |
| 857 |
scheme => sub { # NOTE: No MUST. |
| 858 |
my ($self, $attr) = @_; |
| 859 |
## NOTE: There MUST NOT be any white space. |
| 860 |
Whatpm::URIChecker->check_iri ($attr->value, sub { |
| 861 |
my %opt = @_; |
| 862 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 863 |
type => 'URI::'.$opt{type}. |
| 864 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 865 |
}); |
| 866 |
}, |
| 867 |
term => sub { |
| 868 |
my ($self, $attr, $item, $element_state) = @_; |
| 869 |
|
| 870 |
## NOTE: No value constraint. |
| 871 |
|
| 872 |
$element_state->{has_term} = 1; |
| 873 |
}, |
| 874 |
}, { |
| 875 |
label => FEATURE_RFC4287, |
| 876 |
scheme => FEATURE_RFC4287, |
| 877 |
term => FEATURE_RFC4287, |
| 878 |
}), |
| 879 |
check_end => sub { |
| 880 |
my ($self, $item, $element_state) = @_; |
| 881 |
unless ($element_state->{has_term}) { |
| 882 |
$self->{onerror}->(node => $item->{node}, |
| 883 |
type => 'attribute missing:term'); |
| 884 |
} |
| 885 |
|
| 886 |
$AtomChecker{check_end}->(@_); |
| 887 |
}, |
| 888 |
## NOTE: Meaning of content is not defined. |
| 889 |
}; |
| 890 |
|
| 891 |
$Element->{$ATOM_NS}->{contributor} = \%AtomPersonConstruct; |
| 892 |
|
| 893 |
## TODO: Anything below does not support <html:nest/> yet. |
| 894 |
|
| 895 |
$Element->{$ATOM_NS}->{generator} = { |
| 896 |
%AtomChecker, |
| 897 |
check_attrs => $GetAtomAttrsChecker->({ |
| 898 |
uri => sub { # MUST |
| 899 |
my ($self, $attr) = @_; |
| 900 |
## NOTE: There MUST NOT be any white space. |
| 901 |
Whatpm::URIChecker->check_iri_reference ($attr->value, sub { |
| 902 |
my %opt = @_; |
| 903 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 904 |
type => 'URI::'.$opt{type}. |
| 905 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 906 |
}); |
| 907 |
## NOTE: Dereferencing SHOULD produce a representation |
| 908 |
## that is relevant to the agent. |
| 909 |
}, |
| 910 |
version => sub { 1 }, # no value constraint |
| 911 |
}, { |
| 912 |
uri => FEATURE_RFC4287, |
| 913 |
version => FEATURE_RFC4287, |
| 914 |
}), |
| 915 |
|
| 916 |
## NOTE: Elements are not explicitly disallowed. |
| 917 |
|
| 918 |
## NOTE: Content MUST be a string that is a human-readable name for |
| 919 |
## the generating agent. |
| 920 |
}; |
| 921 |
|
| 922 |
$Element->{$ATOM_NS}->{icon} = { |
| 923 |
%AtomChecker, |
| 924 |
check_start => sub { |
| 925 |
my ($self, $item, $element_state) = @_; |
| 926 |
$element_state->{value} = ''; |
| 927 |
}, |
| 928 |
## NOTE: Elements are not explicitly disallowed. |
| 929 |
check_child_text => sub { |
| 930 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 931 |
$element_state->{value} .= $child_node->data; |
| 932 |
}, |
| 933 |
check_end => sub { |
| 934 |
my ($self, $item, $element_state) = @_; |
| 935 |
|
| 936 |
## NOTE: No MUST. |
| 937 |
## NOTE: There MUST NOT be any white space. |
| 938 |
Whatpm::URIChecker->check_iri_reference ($element_state->{value}, sub { |
| 939 |
my %opt = @_; |
| 940 |
$self->{onerror}->(node => $item->{node}, level => $opt{level}, |
| 941 |
type => 'URI::'.$opt{type}. |
| 942 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 943 |
}); |
| 944 |
|
| 945 |
## NOTE: Image SHOULD be 1:1 and SHOULD be small |
| 946 |
|
| 947 |
$AtomChecker{check_end}->(@_); |
| 948 |
}, |
| 949 |
}; |
| 950 |
|
| 951 |
$Element->{$ATOM_NS}->{id} = { |
| 952 |
%AtomChecker, |
| 953 |
check_start => sub { |
| 954 |
my ($self, $item, $element_state) = @_; |
| 955 |
$element_state->{value} = ''; |
| 956 |
}, |
| 957 |
## NOTE: Elements are not explicitly disallowed. |
| 958 |
check_child_text => sub { |
| 959 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 960 |
$element_state->{value} .= $child_node->data; |
| 961 |
}, |
| 962 |
check_end => sub { |
| 963 |
my ($self, $item, $element_state) = @_; |
| 964 |
|
| 965 |
## NOTE: There MUST NOT be any white space. |
| 966 |
Whatpm::URIChecker->check_iri ($element_state->{value}, sub { |
| 967 |
my %opt = @_; |
| 968 |
$self->{onerror}->(node => $item->{node}, level => $opt{level}, |
| 969 |
type => 'URI::'.$opt{type}. |
| 970 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 971 |
}); |
| 972 |
## TODO: SHOULD be normalized |
| 973 |
|
| 974 |
$AtomChecker{check_end}->(@_); |
| 975 |
}, |
| 976 |
}; |
| 977 |
|
| 978 |
my $AtomIMTAttrChecker = sub { |
| 979 |
my ($self, $attr) = @_; |
| 980 |
my $value = $attr->value; |
| 981 |
my $lws0 = qr/(?>(?>\x0D\x0A)?[\x09\x20])*/; |
| 982 |
my $token = qr/[\x21\x23-\x27\x2A\x2B\x2D\x2E\x30-\x39\x41-\x5A\x5E-\x7E]+/; |
| 983 |
my $qs = qr/"(?>[\x00-\x0C\x0E-\x21\x23-\x5B\x5D-\x7E]|\x0D\x0A[\x09\x20]|\x5C[\x00-\x7F])*"/; |
| 984 |
if ($value =~ m#\A$lws0($token)$lws0/$lws0($token)$lws0((?>;$lws0$token$lws0=$lws0(?>$token|$qs)$lws0)*)\z#) { |
| 985 |
my @type = ($1, $2); |
| 986 |
my $param = $3; |
| 987 |
while ($param =~ s/^;$lws0($token)$lws0=$lws0(?>($token)|($qs))$lws0//) { |
| 988 |
if (defined $2) { |
| 989 |
push @type, $1 => $2; |
| 990 |
} else { |
| 991 |
my $n = $1; |
| 992 |
my $v = $2; |
| 993 |
$v =~ s/\\(.)/$1/gs; |
| 994 |
push @type, $n => $v; |
| 995 |
} |
| 996 |
} |
| 997 |
require Whatpm::IMTChecker; |
| 998 |
Whatpm::IMTChecker->check_imt (sub { |
| 999 |
my %opt = @_; |
| 1000 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 1001 |
type => 'IMT:'.$opt{type}); |
| 1002 |
}, @type); |
| 1003 |
} else { |
| 1004 |
$self->{onerror}->(node => $attr, type => 'IMT:syntax error'); |
| 1005 |
} |
| 1006 |
}; # $AtomIMTAttrChecker |
| 1007 |
|
| 1008 |
my $AtomIRIReferenceAttrChecker = sub { |
| 1009 |
my ($self, $attr) = @_; |
| 1010 |
## NOTE: There MUST NOT be any white space. |
| 1011 |
Whatpm::URIChecker->check_iri_reference ($attr->value, sub { |
| 1012 |
my %opt = @_; |
| 1013 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 1014 |
type => 'URI::'.$opt{type}. |
| 1015 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 1016 |
}); |
| 1017 |
}; # $AtomIRIReferenceAttrChecker |
| 1018 |
|
| 1019 |
$Element->{$ATOM_NS}->{link} = { |
| 1020 |
%AtomChecker, |
| 1021 |
check_attrs => $GetAtomAttrsChecker->({ |
| 1022 |
href => $AtomIRIReferenceAttrChecker, |
| 1023 |
hreflang => $AtomLanguageTagAttrChecker, |
| 1024 |
length => sub { }, # No MUST; in octets. |
| 1025 |
rel => sub { # MUST |
| 1026 |
my ($self, $attr) = @_; |
| 1027 |
my $value = $attr->value; |
| 1028 |
if ($value =~ /\A(?>[0-9A-Za-z._~!\$&'()*+,;=\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}-]|%[0-9A-Fa-f][0-9A-Fa-f]|\@)+\z/) { |
| 1029 |
$value = $LINK_REL . $value; |
| 1030 |
} |
| 1031 |
|
| 1032 |
## NOTE: There MUST NOT be any white space. |
| 1033 |
Whatpm::URIChecker->check_iri ($value, sub { |
| 1034 |
my %opt = @_; |
| 1035 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 1036 |
type => 'URI::'.$opt{type}. |
| 1037 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 1038 |
}); |
| 1039 |
|
| 1040 |
## TODO: Warn if unregistered |
| 1041 |
}, |
| 1042 |
title => sub { }, # No MUST |
| 1043 |
type => $AtomIMTAttrChecker, |
| 1044 |
## NOTE: MUST be a MIME media type. What is "MIME media type"? |
| 1045 |
}, { |
| 1046 |
href => FEATURE_RFC4287, |
| 1047 |
hreflang => FEATURE_RFC4287, |
| 1048 |
length => FEATURE_RFC4287, |
| 1049 |
rel => FEATURE_RFC4287, |
| 1050 |
title => FEATURE_RFC4287, |
| 1051 |
type => FEATURE_RFC4287, |
| 1052 |
}), |
| 1053 |
check_start => sub { |
| 1054 |
my ($self, $item, $element_state) = @_; |
| 1055 |
|
| 1056 |
unless ($item->{node}->has_attribute_ns (undef, 'href')) { # MUST |
| 1057 |
$self->{onerror}->(node => $item->{node}, |
| 1058 |
type => 'attribute missing:href'); |
| 1059 |
} |
| 1060 |
|
| 1061 |
if ($item->{node}->rel eq $LINK_REL . 'enclosure' and |
| 1062 |
not $item->{node}->has_attribute_ns (undef, 'length')) { |
| 1063 |
$self->{onerror}->(node => $item->{node}, level => 's', |
| 1064 |
type => 'attribute missing:length'); |
| 1065 |
} |
| 1066 |
}, |
| 1067 |
}; |
| 1068 |
|
| 1069 |
$Element->{$ATOM_NS}->{logo} = { |
| 1070 |
%AtomChecker, |
| 1071 |
## NOTE: Child elements are not explicitly disallowed |
| 1072 |
check_start => sub { |
| 1073 |
my ($self, $item, $element_state) = @_; |
| 1074 |
$element_state->{value} = ''; |
| 1075 |
}, |
| 1076 |
## NOTE: Elements are not explicitly disallowed. |
| 1077 |
check_child_text => sub { |
| 1078 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 1079 |
$element_state->{value} .= $child_node->data; |
| 1080 |
}, |
| 1081 |
check_end => sub { |
| 1082 |
my ($self, $item, $element_state) = @_; |
| 1083 |
|
| 1084 |
## NOTE: There MUST NOT be any white space. |
| 1085 |
Whatpm::URIChecker->check_iri_reference ($element_state->{value}, sub { |
| 1086 |
my %opt = @_; |
| 1087 |
$self->{onerror}->(node => $item->{node}, level => $opt{level}, |
| 1088 |
type => 'URI::'.$opt{type}. |
| 1089 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 1090 |
}); |
| 1091 |
|
| 1092 |
## NOTE: Image SHOULD be 2:1 |
| 1093 |
|
| 1094 |
$AtomChecker{check_end}->(@_); |
| 1095 |
}, |
| 1096 |
}; |
| 1097 |
|
| 1098 |
$Element->{$ATOM_NS}->{published} = \%AtomDateConstruct; |
| 1099 |
|
| 1100 |
$Element->{$ATOM_NS}->{rights} = \%AtomDateConstruct; |
| 1101 |
## NOTE: SHOULD NOT be used to convey machine-readable information. |
| 1102 |
|
| 1103 |
$Element->{$ATOM_NS}->{source} = { |
| 1104 |
%AtomChecker, |
| 1105 |
check_child_element => sub { |
| 1106 |
my ($self, $item, $child_el, $child_nsuri, $child_ln, |
| 1107 |
$child_is_transparent, $element_state) = @_; |
| 1108 |
|
| 1109 |
if ($self->{minus_elements}->{$child_nsuri}->{$child_ln}) { |
| 1110 |
$self->{onerror}->(node => $child_el, |
| 1111 |
type => 'element not allowed:minus', |
| 1112 |
level => $self->{must_level}); |
| 1113 |
} elsif ($self->{plus_elements}->{$child_nsuri}->{$child_ln}) { |
| 1114 |
# |
| 1115 |
} elsif ($child_nsuri eq $ATOM_NS) { |
| 1116 |
my $not_allowed; |
| 1117 |
if ($child_ln eq 'entry') { |
| 1118 |
$element_state->{has_element}->{entry} = 1; |
| 1119 |
} elsif ({ |
| 1120 |
generator => 1, |
| 1121 |
icon => 1, |
| 1122 |
id => 1, |
| 1123 |
logo => 1, |
| 1124 |
rights => 1, |
| 1125 |
subtitle => 1, |
| 1126 |
title => 1, |
| 1127 |
updated => 1, |
| 1128 |
}->{$child_ln}) { |
| 1129 |
unless ($element_state->{has_element}->{$child_ln}) { |
| 1130 |
$element_state->{has_element}->{$child_ln} = 1; |
| 1131 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 1132 |
} else { |
| 1133 |
$not_allowed = 1; |
| 1134 |
} |
| 1135 |
} elsif ($child_ln eq 'link') { |
| 1136 |
if ($child_ln->rel eq $LINK_REL . 'alternate') { |
| 1137 |
my $type = $child_ln->get_attribute_ns (undef, 'type'); |
| 1138 |
$type = '' unless defined $type; |
| 1139 |
my $hreflang = $child_ln->get_attribute_ns (undef, 'hreflang'); |
| 1140 |
$hreflang = '' unless defined $hreflang; |
| 1141 |
my $key = 'link:'.(defined $type ? ':'.$type : '').':'. |
| 1142 |
(defined $hreflang ? ':'.$hreflang : ''); |
| 1143 |
unless ($element_state->{has_element}->{$key}) { |
| 1144 |
$element_state->{has_element}->{$key} = 1; |
| 1145 |
} else { |
| 1146 |
$not_allowed = 1; |
| 1147 |
} |
| 1148 |
} |
| 1149 |
$not_allowed ||= $element_state->{has_element}->{entry}; |
| 1150 |
} elsif ({ |
| 1151 |
category => 1, |
| 1152 |
contributor => 1, |
| 1153 |
}->{$child_ln}) { |
| 1154 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 1155 |
} elsif ($child_ln eq 'author') { |
| 1156 |
$not_allowed = $element_state->{has_element}->{entry}; |
| 1157 |
$item->{parent_state}->{has_author} = 1; # parent::atom:entry's flag |
| 1158 |
} else { |
| 1159 |
$not_allowed = 1; |
| 1160 |
} |
| 1161 |
if ($not_allowed) { |
| 1162 |
$self->{onerror}->(node => $child_el, type => 'element not allowed'); |
| 1163 |
} |
| 1164 |
} else { |
| 1165 |
## TODO: extension element |
| 1166 |
$self->{onerror}->(node => $child_el, type => 'element not allowed'); |
| 1167 |
} |
| 1168 |
}, |
| 1169 |
check_child_text => sub { |
| 1170 |
my ($self, $item, $child_node, $has_significant, $element_state) = @_; |
| 1171 |
if ($has_significant) { |
| 1172 |
$self->{onerror}->(node => $child_node, type => 'character not allowed', |
| 1173 |
level => $self->{must_level}); |
| 1174 |
} |
| 1175 |
}, |
| 1176 |
}; |
| 1177 |
|
| 1178 |
$Element->{$ATOM_NS}->{subtitle} = \%AtomTextConstruct; |
| 1179 |
|
| 1180 |
$Element->{$ATOM_NS}->{summary} = \%AtomTextConstruct; |
| 1181 |
|
| 1182 |
$Element->{$ATOM_NS}->{title} = \%AtomTextConstruct; |
| 1183 |
|
| 1184 |
$Element->{$ATOM_NS}->{updated} = \%AtomDateConstruct; |
| 1185 |
|
| 1186 |
## TODO: signature element |
| 1187 |
|
| 1188 |
## TODO: simple extension element and structured extension element |
| 1189 |
|
| 1190 |
## -- Atom Threading 1.0 [RFC 4685] |
| 1191 |
|
| 1192 |
$Element->{$THR_NS}->{''} = { |
| 1193 |
%AtomChecker, |
| 1194 |
status => 0, |
| 1195 |
}; |
| 1196 |
|
| 1197 |
## ISSUE: Strictly speaking, thr:* element/attribute, |
| 1198 |
## where * is an undefined local name, is not disallowed. |
| 1199 |
|
| 1200 |
$Element->{$THR_NS}->{'in-reply-to'} = { |
| 1201 |
%AtomChecker, |
| 1202 |
status => FEATURE_RFC4685, |
| 1203 |
check_attrs => $GetAtomAttrsChecker->({ |
| 1204 |
href => $AtomIRIReferenceAttrChecker, |
| 1205 |
## TODO: fact-level. |
| 1206 |
## TODO: MUST be dereferencable. |
| 1207 |
ref => sub { |
| 1208 |
my ($self, $attr, $item, $element_state) = @_; |
| 1209 |
$element_state->{has_ref} = 1; |
| 1210 |
|
| 1211 |
## NOTE: Same as |atom:id|. |
| 1212 |
## NOTE: There MUST NOT be any white space. |
| 1213 |
Whatpm::URIChecker->check_iri ($attr->value, sub { |
| 1214 |
my %opt = @_; |
| 1215 |
$self->{onerror}->(node => $attr, level => $opt{level}, |
| 1216 |
type => 'URI::'.$opt{type}. |
| 1217 |
(defined $opt{position} ? ':'.$opt{position} : '')); |
| 1218 |
}); |
| 1219 |
|
| 1220 |
## TODO: Check against ID guideline... |
| 1221 |
}, |
| 1222 |
source => $AtomIRIReferenceAttrChecker, |
| 1223 |
## TODO: fact-level. |
| 1224 |
## TODO: MUST be dereferencable. |
| 1225 |
type => $AtomIMTAttrChecker, |
| 1226 |
## TODO: fact-level. |
| 1227 |
}, { |
| 1228 |
href => FEATURE_RFC4685, |
| 1229 |
source => FEATURE_RFC4685, |
| 1230 |
ref => FEATURE_RFC4685, |
| 1231 |
type => FEATURE_RFC4685, |
| 1232 |
}), |
| 1233 |
check_end => sub { |
| 1234 |
my ($self, $item, $element_state) = @_; |
| 1235 |
|
| 1236 |
unless ($element_state->{has_ref}) { |
| 1237 |
$self->{onerror}->(node => $item->{node}, |
| 1238 |
type => 'attribute missing:ref', |
| 1239 |
level => $self->{must_level}); |
| 1240 |
} |
| 1241 |
|
| 1242 |
$AtomChecker{check_end}->(@_); |
| 1243 |
}, |
| 1244 |
## NOTE: Content model has no constraint. |
| 1245 |
}; |
| 1246 |
|
| 1247 |
$Whatpm::ContentChecker::Namespace->{$ATOM_NS}->{loaded} = 1; |
| 1248 |
$Whatpm::ContentChecker::Namespace->{$THR_NS}->{loaded} = 1; |
| 1249 |
|
| 1250 |
1; |
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