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| 1 | +<?php |
| 2 | + |
| 3 | +declare(strict_types=1); |
| 4 | + |
| 5 | +namespace SimpleSAML\XMLSecurity\XML\ds; |
| 6 | + |
| 7 | +use DOMElement; |
| 8 | +use SimpleSAML\Assert\Assert; |
| 9 | +use SimpleSAML\XML\Exception\InvalidDOMElementException; |
| 10 | + |
| 11 | +/** |
| 12 | + * Class representing a ds:Reference element. |
| 13 | + * |
| 14 | + * @package simplesamlphp/xml-security |
| 15 | + */ |
| 16 | +final class Reference extends AbstractDsElement |
| 17 | +{ |
| 18 | + /** @var \SimpleSAML\XMLSecurity\XML\ds\Transforms|null */ |
| 19 | + protected Transforms $transforms; |
| 20 | + |
| 21 | + /** @var \SimpleSAML\XMLSecurity\XML\ds\DigestMethod */ |
| 22 | + protected DigestMethod $digestMethod; |
| 23 | + |
| 24 | + /** @var \SimpleSAML\XMLSecurity\XML\ds\DigestValue */ |
| 25 | + protected DigestValue $digestValue; |
| 26 | + |
| 27 | + /** @var string|null $Id */ |
| 28 | + protected ?string $Id; |
| 29 | + |
| 30 | + /** @var string|null $type */ |
| 31 | + protected ?string $Type; |
| 32 | + |
| 33 | + /** @var string|null $URI */ |
| 34 | + protected ?string $URI; |
| 35 | + |
| 36 | + |
| 37 | + /** |
| 38 | + * Initialize a ds:Reference |
| 39 | + * |
| 40 | + * @param \SimpleSAML\XMLSecurity\XML\ds\DigestMethod $digestMethod |
| 41 | + * @param \SimpleSAML\XMLSecurity\XML\ds\DigestValue $digestValue |
| 42 | + * @param \SimpleSAML\XMLSecurity\XML\ds\Transforms|null $transforms |
| 43 | + * @param string|null $Id |
| 44 | + * @param string|null $Type |
| 45 | + * @param string|null $URI |
| 46 | + */ |
| 47 | + public function __construct( |
| 48 | + DigestMethod $digestMethod, |
| 49 | + DigestValue $digestValue, |
| 50 | + ?Transforms $transforms = null, |
| 51 | + ?string $Id = null, |
| 52 | + ?string $Type = null, |
| 53 | + ?string $URI = null |
| 54 | + ) { |
| 55 | + $this->setTransforms($transforms); |
| 56 | + $this->setDigestMethod($digestMethod); |
| 57 | + $this->setDigestValue($digestValue); |
| 58 | + $this->setId($Id); |
| 59 | + $this->setType($Type); |
| 60 | + $this->setURI($URI); |
| 61 | + } |
| 62 | + |
| 63 | + |
| 64 | + /** |
| 65 | + * @return \SimpleSAML\XMLSecurity\XML\ds\Transforms|null |
| 66 | + */ |
| 67 | + public function getTransforms(): ?Transforms |
| 68 | + { |
| 69 | + return $this->transforms; |
| 70 | + } |
| 71 | + |
| 72 | + |
| 73 | + /** |
| 74 | + * @param \SimpleSAML\XMLSecurity\XML\ds\Transforms|null |
| 75 | + */ |
| 76 | + protected function setTransforms(?Transforms $transforms): void |
| 77 | + { |
| 78 | + $this->transforms = $transforms; |
| 79 | + } |
| 80 | + |
| 81 | + |
| 82 | + /** |
| 83 | + * @return \SimpleSAML\XMLSecurity\XML\ds\DigestMethod |
| 84 | + */ |
| 85 | + public function getDigestMethod(): DigestMethod |
| 86 | + { |
| 87 | + return $this->digestMethod; |
| 88 | + } |
| 89 | + |
| 90 | + |
| 91 | + /** |
| 92 | + * @param \SimpleSAML\XMLSecurity\XML\ds\DigestMethod $digestMethod |
| 93 | + */ |
| 94 | + private function setDigestMethod(DigestMethod $digestMethod): void |
| 95 | + { |
| 96 | + $this->digestMethod = $digestMethod; |
| 97 | + } |
| 98 | + |
| 99 | + |
| 100 | + /** |
| 101 | + * @return \SimpleSAML\XMLSecurity\XML\ds\DigestValue |
| 102 | + */ |
| 103 | + public function getDigestValue(): DigestValue |
| 104 | + { |
| 105 | + return $this->digestValue; |
| 106 | + } |
| 107 | + |
| 108 | + |
| 109 | + /** |
| 110 | + * @param \SimpleSAML\XMLSecurity\XML\ds\DigestValue $digestValue |
| 111 | + */ |
| 112 | + private function setDigestValue(DigestValue $digestValue): void |
| 113 | + { |
| 114 | + $this->digestValue = $digestValue; |
| 115 | + } |
| 116 | + |
| 117 | + |
| 118 | + /** |
| 119 | + * @return string|null |
| 120 | + */ |
| 121 | + public function getId(): ?string |
| 122 | + { |
| 123 | + return $this->Id; |
| 124 | + } |
| 125 | + |
| 126 | + |
| 127 | + /** |
| 128 | + * @param string|null $Id |
| 129 | + */ |
| 130 | + private function setId(?string $Id): void |
| 131 | + { |
| 132 | + $this->Id = $Id; |
| 133 | + } |
| 134 | + |
| 135 | + |
| 136 | + /** |
| 137 | + * @return string|null |
| 138 | + */ |
| 139 | + public function getType(): ?string |
| 140 | + { |
| 141 | + return $this->Type; |
| 142 | + } |
| 143 | + |
| 144 | + |
| 145 | + /** |
| 146 | + * @param string|null $Type |
| 147 | + */ |
| 148 | + private function setType(?string $Type): void |
| 149 | + { |
| 150 | + $this->Type = $Type; |
| 151 | + } |
| 152 | + |
| 153 | + |
| 154 | + /** |
| 155 | + * @return string|null |
| 156 | + */ |
| 157 | + public function getURI(): ?string |
| 158 | + { |
| 159 | + return $this->URI; |
| 160 | + } |
| 161 | + |
| 162 | + |
| 163 | + /** |
| 164 | + * @param string|null $URI |
| 165 | + */ |
| 166 | + private function setURI(?string $URI): void |
| 167 | + { |
| 168 | + $this->URI = $URI; |
| 169 | + } |
| 170 | + |
| 171 | + |
| 172 | + /** |
| 173 | + * Convert XML into a Reference element |
| 174 | + * |
| 175 | + * @param \DOMElement $xml The XML element we should load |
| 176 | + * @return self |
| 177 | + * |
| 178 | + * @throws \SimpleSAML\XML\Exception\InvalidDOMElementException |
| 179 | + * If the qualified name of the supplied element is wrong |
| 180 | + */ |
| 181 | + public static function fromXML(DOMElement $xml): object |
| 182 | + { |
| 183 | + Assert::same($xml->localName, 'Reference', InvalidDOMElementException::class); |
| 184 | + Assert::same($xml->namespaceURI, Reference::NS, InvalidDOMElementException::class); |
| 185 | + |
| 186 | + $Id = self::getAttribute($xml, 'Id', null); |
| 187 | + $Type = self::getAttribute($xml, 'Type', null); |
| 188 | + $URI = self::getAttribute($xml, 'URI', null); |
| 189 | + |
| 190 | + $transforms = Transforms::getChildrenOfClass($xml); |
| 191 | + Assert::maxCount($transforms, 1, 'A <ds:Reference> may contain just one <ds:Transforms>.'); |
| 192 | + |
| 193 | + $digestMethod = DigestMethod::getChildrenOfClass($xml); |
| 194 | + Assert::count($digestMethod, 1, 'A <ds:Reference> must contain a <ds:DigestMethod>.'); |
| 195 | + |
| 196 | + $digestValue = DigestValue::getChildrenOfClass($xml); |
| 197 | + Assert::count($digestValue, 1, 'A <ds:Reference> must contain a <ds:DigestValue>.'); |
| 198 | + |
| 199 | + return new self( |
| 200 | + array_pop($digestMethod), |
| 201 | + array_pop($digestValue), |
| 202 | + empty($transforms) ? null : array_pop($transforms), |
| 203 | + $Id, |
| 204 | + $Type, |
| 205 | + $URI |
| 206 | + ); |
| 207 | + } |
| 208 | + |
| 209 | + |
| 210 | + /** |
| 211 | + * Convert this Reference element to XML. |
| 212 | + * |
| 213 | + * @param \DOMElement|null $parent The element we should append this Reference element to. |
| 214 | + * @return \DOMElement |
| 215 | + */ |
| 216 | + public function toXML(DOMElement $parent = null): DOMElement |
| 217 | + { |
| 218 | + $e = $this->instantiateParentElement($parent); |
| 219 | + if ($this->Id !== null) { |
| 220 | + $e->setAttribute('Id', $this->Id); |
| 221 | + } |
| 222 | + if ($this->Type !== null) { |
| 223 | + $e->setAttribute('Type', $this->Type); |
| 224 | + } |
| 225 | + if ($this->URI !== null) { |
| 226 | + $e->setAttribute('URI', $this->URI); |
| 227 | + } |
| 228 | + |
| 229 | + if ($this->transforms !== null) { |
| 230 | + $this->transforms->toXML($e); |
| 231 | + } |
| 232 | + |
| 233 | + $this->digestMethod->toXML($e); |
| 234 | + $this->digestValue->toXML($e); |
| 235 | + |
| 236 | + return $e; |
| 237 | + } |
| 238 | +} |
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