friendica/php-json-ld
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Check invalid keyword aliasing via @id.

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This commit is contained in:
Dave Longley 2013-04-15 11:09:06 -04:00
parent 3278e369c1
commit d14adbdf22
1 changed files with 11 additions and 19 deletions
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30
jsonld.php
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@ -4395,26 +4395,9 @@ class JsonLdProcessor {
return;
}
// convert short-hand value to object w/@id
if(is_string($value)) {
// expand value to a full IRI
$id = $this->_expandIri(
$active_ctx, $value, array('vocab' => true, 'base' => true),
$local_ctx, $defined);
if(self::_isKeyword($value)) {
// disallow aliasing @context and @preserve
if($value === '@context' || $value === '@preserve') {
throw new JsonLdException(
'Invalid JSON-LD syntax; @context and @preserve cannot be aliased.',
'jsonld.SyntaxError', array('context' => $local_ctx));
}
}
// define term to expanded IRI/keyword
$active_ctx->mappings->{$term} = (object)array(
'@id' => $id, 'reverse' => false);
$defined->{$term} = true;
return;
$value = (object)array('@id' => $value);
}
if(!is_object($value)) {
@ -4558,6 +4541,15 @@ class JsonLdProcessor {
$mapping->{'@language'} = $language;
}
// disallow aliasing @context and @preserve
$id = $mapping->{'@id'};
if($id === '@context' || $id === '@preserve') {
throw new JsonLdException(
'Invalid JSON-LD syntax; @context and @preserve cannot be aliased.',
'jsonld.SyntaxError', array('context' => $local_ctx));
}
// define term mapping
$active_ctx->mappings->{$term} = $mapping;
$defined->{$term} = true;