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| 1 | <?php |
| 2 | /** |
| 3 | * Copyright © 2004 Brooke Vibber <bvibber@wikimedia.org> |
| 4 | * https://www.mediawiki.org/ |
| 5 | * |
| 6 | * @license GPL-2.0-or-later |
| 7 | * @file |
| 8 | */ |
| 9 | |
| 10 | namespace MediaWiki\Feed; |
| 11 | |
| 12 | use MediaWiki\Language\LanguageCode; |
| 13 | use MediaWiki\MainConfigNames; |
| 14 | use MediaWiki\MediaWikiServices; |
| 15 | use MediaWiki\Utils\UrlUtils; |
| 16 | |
| 17 | /** |
| 18 | * @defgroup Feed Feed |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * A base class for outputting syndication feeds (e.g. RSS and other formats). |
| 23 | * |
| 24 | * @ingroup Feed |
| 25 | */ |
| 26 | class FeedItem { |
| 27 | /** @var string */ |
| 28 | public $title; |
| 29 | |
| 30 | /** @var string */ |
| 31 | public $description; |
| 32 | |
| 33 | /** @var string */ |
| 34 | public $url; |
| 35 | |
| 36 | /** @var string */ |
| 37 | public $date; |
| 38 | |
| 39 | /** @var string */ |
| 40 | public $author; |
| 41 | |
| 42 | /** @var string */ |
| 43 | public $uniqueId; |
| 44 | |
| 45 | /** @var string */ |
| 46 | public $comments; |
| 47 | |
| 48 | /** @var bool */ |
| 49 | public $rssIsPermalink = false; |
| 50 | |
| 51 | protected UrlUtils $urlUtils; |
| 52 | |
| 53 | /** |
| 54 | * @param string $title Item's title |
| 55 | * @param string $description |
| 56 | * @param string $url URL uniquely designating the item. |
| 57 | * @param string $date Item's date |
| 58 | * @param string $author Author's user name |
| 59 | * @param string $comments |
| 60 | */ |
| 61 | public function __construct( |
| 62 | $title, $description, $url, $date = '', $author = '', $comments = '' |
| 63 | ) { |
| 64 | $this->title = $title; |
| 65 | $this->description = $description; |
| 66 | $this->url = $url; |
| 67 | $this->uniqueId = $url; |
| 68 | $this->date = $date; |
| 69 | $this->author = $author; |
| 70 | $this->comments = $comments; |
| 71 | $this->urlUtils = MediaWikiServices::getInstance()->getUrlUtils(); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Encode $string so that it can be safely embedded in a XML document |
| 76 | * |
| 77 | * @param string $string String to encode |
| 78 | * |
| 79 | * @return string |
| 80 | */ |
| 81 | public function xmlEncode( $string ) { |
| 82 | $string = str_replace( "\r\n", "\n", $string ); |
| 83 | $string = preg_replace( '/[\x00-\x08\x0b\x0c\x0e-\x1f]/', '', $string ); |
| 84 | |
| 85 | return htmlspecialchars( $string ); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Encode $string so that it can be safely embedded in a XML document, |
| 90 | * returning `null` if $string was `null`. |
| 91 | * @since 1.44 (also backported to 1.39.12, 1.42.6 and 1.43.1) |
| 92 | */ |
| 93 | public function xmlEncodeNullable( ?string $string ): ?string { |
| 94 | return $string !== null ? $this->xmlEncode( $string ) : null; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Get the unique id of this item; already xml-encoded |
| 99 | * |
| 100 | * @return string |
| 101 | */ |
| 102 | public function getUniqueID() { |
| 103 | $id = $this->getUniqueIdUnescaped(); |
| 104 | if ( $id ) { |
| 105 | return $this->xmlEncode( $id ); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Get the unique id of this item, without any escaping |
| 111 | * |
| 112 | * @return string|null |
| 113 | */ |
| 114 | public function getUniqueIdUnescaped(): ?string { |
| 115 | if ( $this->uniqueId ) { |
| 116 | return $this->urlUtils->expand( $this->uniqueId, PROTO_CURRENT ); |
| 117 | } |
| 118 | |
| 119 | return null; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Set the unique id of an item |
| 124 | * |
| 125 | * @param string $uniqueId Unique id for the item |
| 126 | * @param bool $rssIsPermalink Set to true if the guid (unique id) is a permalink (RSS feeds only) |
| 127 | */ |
| 128 | public function setUniqueId( $uniqueId, $rssIsPermalink = false ) { |
| 129 | $this->uniqueId = $uniqueId; |
| 130 | $this->rssIsPermalink = $rssIsPermalink; |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Get the title of this item; already xml-encoded |
| 135 | * |
| 136 | * @return string |
| 137 | */ |
| 138 | public function getTitle() { |
| 139 | return $this->xmlEncode( $this->title ); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Get the URL of this item; already xml-encoded |
| 144 | * |
| 145 | * @return string |
| 146 | */ |
| 147 | public function getUrl() { |
| 148 | return $this->xmlEncode( $this->url ); |
| 149 | } |
| 150 | |
| 151 | /** Get the URL of this item without any escaping |
| 152 | * |
| 153 | * @return string |
| 154 | */ |
| 155 | public function getUrlUnescaped() { |
| 156 | return $this->url; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Get the description of this item; already xml-encoded |
| 161 | * |
| 162 | * @return string |
| 163 | */ |
| 164 | public function getDescription() { |
| 165 | return $this->xmlEncode( $this->description ); |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Get the description of this item without any escaping |
| 170 | * |
| 171 | * @return string |
| 172 | */ |
| 173 | public function getDescriptionUnescaped() { |
| 174 | return $this->description; |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Get the language of this item |
| 179 | * |
| 180 | * @return string |
| 181 | */ |
| 182 | public function getLanguage() { |
| 183 | $languageCode = MediaWikiServices::getInstance()->getMainConfig() |
| 184 | ->get( MainConfigNames::LanguageCode ); |
| 185 | return LanguageCode::bcp47( $languageCode ); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Get the date of this item |
| 190 | * |
| 191 | * @return string |
| 192 | */ |
| 193 | public function getDate() { |
| 194 | return $this->date; |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Get the author of this item; already xml-encoded |
| 199 | * |
| 200 | * @return string |
| 201 | */ |
| 202 | public function getAuthor() { |
| 203 | return $this->xmlEncode( $this->author ); |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Get the author of this item without any escaping |
| 208 | * |
| 209 | * @return string |
| 210 | */ |
| 211 | public function getAuthorUnescaped() { |
| 212 | return $this->author; |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * Get the comment of this item; already xml-encoded |
| 217 | * |
| 218 | * @return string |
| 219 | */ |
| 220 | public function getComments() { |
| 221 | return $this->xmlEncode( $this->comments ); |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Get the comment of this item without any escaping |
| 226 | * |
| 227 | * @return string |
| 228 | */ |
| 229 | public function getCommentsUnescaped() { |
| 230 | return $this->comments; |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Quickie hack... strip out wikilinks to more legible form from the comment. |
| 235 | * |
| 236 | * @param string $text Wikitext |
| 237 | * |
| 238 | * @return string |
| 239 | */ |
| 240 | public static function stripComment( $text ) { |
| 241 | return preg_replace( '/\[\[([^]]*\|)?([^]]+)\]\]/', '\2', $text ); |
| 242 | } |
| 243 | |
| 244 | } |