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DisallowUnsupportedXSL.php
01 <?php declare(strict_types=1);
02
03 /**
04 * @package s9e\TextFormatter
05 * @copyright Copyright (c) 2010-2022 The s9e authors
06 * @license http://www.opensource.org/licenses/mit-license.php The MIT License
07 */
08 namespace s9e\TextFormatter\Configurator\TemplateChecks;
09
10 use DOMElement;
11 use RuntimeException;
12
13 class DisallowUnsupportedXSL extends AbstractXSLSupportCheck
14 {
15 protected $supportedElements = ['apply-templates', 'attribute', 'choose', 'comment', 'copy-of', 'element', 'for-each', 'if', 'number', 'otherwise', 'processing-instruction', 'sort', 'text', 'value-of', 'variable', 'when'];
16
17 protected $supportedFunctions = ['boolean', 'ceiling', 'concat', 'contains', 'count', 'current', 'document', 'element-available', 'false', 'floor', 'format-number', 'function-available', 'generate-id', 'id', 'key', 'lang', 'last', 'local-name', 'name', 'namespace-uri', 'normalize-space', 'not', 'number', 'position', 'round', 'starts-with', 'string', 'string-length', 'substring', 'substring-after', 'substring-before', 'sum', 'system-property', 'translate', 'true', 'unparsed-entity-uri'];
18
19 protected function checkXslApplyTemplatesElement(DOMElement $applyTemplates): void
20 {
21 if ($applyTemplates->hasAttribute('mode'))
22 {
23 throw new RuntimeException('xsl:apply-templates elements do not support the mode attribute');
24 }
25 }
26
27 protected function checkXslCopyOfElement(DOMElement $copyOf): void
28 {
29 $this->requireAttribute($copyOf, 'select');
30 }
31
32 protected function checkXslAttributeElement(DOMElement $attribute): void
33 {
34 $this->requireAttribute($attribute, 'name');
35
36 $attrName = $attribute->getAttribute('name');
37 if (!preg_match('(^(?:\\{[^\\}]++\\}|[-.\\pL])++$)Du', $attrName))
38 {
39 throw new RuntimeException("Unsupported xsl:attribute name '" . $attrName . "'");
40 }
41 }
42
43 protected function checkXslElementElement(DOMElement $element): void
44 {
45 $this->requireAttribute($element, 'name');
46
47 $elName = $element->getAttribute('name');
48 if (!preg_match('(^(?:\\{[^\\}]++\\}|[-.\\pL])++(?::(?:\\{[^\\}]++\\}|[-.\\pL])++)?$)Du', $elName))
49 {
50 throw new RuntimeException("Unsupported xsl:element name '" . $elName . "'");
51 }
52 }
53
54 protected function checkXslIfElement(DOMElement $if): void
55 {
56 $this->requireAttribute($if, 'test');
57 }
58
59 protected function checkXslValueOfElement(DOMElement $valueOf): void
60 {
61 $this->requireAttribute($valueOf, 'select');
62 }
63
64 protected function checkXslVariableElement(DOMElement $variable): void
65 {
66 $this->requireAttribute($variable, 'name');
67 }
68
69 protected function checkXslWhenElement(DOMElement $when): void
70 {
71 $this->requireAttribute($when, 'test');
72 }
73
74 protected function requireAttribute(DOMElement $element, string $attrName)
75 {
76 if (!$element->hasAttribute($attrName))
77 {
78 throw new RuntimeException('xsl:' . $element->localName . ' elements require a ' . $attrName . ' attribute');
79 }
80 }
81 }