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1 |
1 | <?php |
2 | |
3 | namespace MediaWiki\Edit; |
4 | |
5 | use InvalidArgumentException; |
6 | use MediaWiki\Parser\ParserOutput; |
7 | |
8 | /** |
9 | * Represents the identity of a specific rendering of a specific revision |
10 | * at some point in time. |
11 | * |
12 | * @since 1.39 |
13 | * @unstable since 1.39, should be stable by 1.39 release. |
14 | */ |
15 | class ParsoidRenderID { |
16 | private int $revisionID; |
17 | private string $uniqueID; |
18 | private string $stashKey; |
19 | |
20 | /** |
21 | * @param int $revisionID Revision that was rendered |
22 | * @param string $uniqueID An identifier for a point in time. |
23 | */ |
24 | public function __construct( int $revisionID, string $uniqueID ) { |
25 | $this->revisionID = $revisionID; |
26 | $this->uniqueID = $uniqueID; |
27 | $this->stashKey = $revisionID . '/' . $uniqueID; |
28 | } |
29 | |
30 | /** |
31 | * @param string $key String representation of render ID |
32 | * (synonymous with an etag with double quotes) as returned by ::getKey(). |
33 | * |
34 | * @return self |
35 | * @see newFromETag() |
36 | * |
37 | */ |
38 | public static function newFromKey( string $key ): self { |
39 | [ $revisionID, $uniqueID ] = explode( '/', $key, 2 ); |
40 | |
41 | if ( $revisionID === null || $uniqueID === null ) { |
42 | throw new InvalidArgumentException( 'Bad key: ' . $key ); |
43 | } |
44 | |
45 | return new self( (int)$revisionID, $uniqueID ); |
46 | } |
47 | |
48 | /** |
49 | * Create a ParsoidRenderID from the revision and render id stored in |
50 | * a ParserOutput. |
51 | * @param ParserOutput $parserOutput |
52 | * @return self |
53 | */ |
54 | public static function newFromParserOutput( ParserOutput $parserOutput ): self { |
55 | $revisionID = $parserOutput->getCacheRevisionId(); |
56 | $uniqueID = $parserOutput->getRenderId(); |
57 | |
58 | if ( $revisionID === null || $uniqueID === null ) { |
59 | throw new InvalidArgumentException( 'Missing render id' ); |
60 | } |
61 | |
62 | return new self( $revisionID, $uniqueID ); |
63 | } |
64 | |
65 | /** |
66 | * This constructs a new render ID from the given ETag. |
67 | * |
68 | * Any suffix after a second forward slash will be ignored e.g. |
69 | * ->newFromEtag( '1/abc/stash' ) will return '1/abc' when ->getKey() |
70 | * is called on the ParsoidRenderID object instance. |
71 | * |
72 | * @param string $eTag ETag with double quotes, |
73 | * see https://www.rfc-editor.org/rfc/rfc7232#section-2.3 |
74 | * |
75 | * @return ParsoidRenderID|null The render ID embedded in the ETag, |
76 | * or null if the ETag was malformed. |
77 | * @see newFromKey() if ETag already has outside quotes trimmed |
78 | * |
79 | */ |
80 | public static function newFromETag( string $eTag ): ?self { |
81 | if ( !preg_match( '@^(?:W/)?"(\d+)/([^/]+)(:?/.*)?"$@', $eTag, $m ) ) { |
82 | return null; |
83 | } |
84 | |
85 | [ , $revisionID, $uniqueID ] = $m; |
86 | |
87 | return new self( (int)$revisionID, $uniqueID ); |
88 | } |
89 | |
90 | /** |
91 | * This returns the canonical string representation from |
92 | * the parsoid render ID which can be used to in newFromString(). |
93 | * |
94 | * @return string |
95 | */ |
96 | public function getKey(): string { |
97 | return $this->stashKey; |
98 | } |
99 | |
100 | public function __toString() { |
101 | return $this->stashKey; |
102 | } |
103 | |
104 | /** |
105 | * Get the revision ID from the parsoid render ID object. |
106 | * |
107 | * @return int |
108 | */ |
109 | public function getRevisionID(): int { |
110 | return $this->revisionID; |
111 | } |
112 | |
113 | /** |
114 | * Get the unique identifier from the parsoid render ID object. |
115 | * |
116 | * @return string |
117 | */ |
118 | public function getUniqueID(): string { |
119 | return $this->uniqueID; |
120 | } |
121 | |
122 | } |
123 | |
124 | /** @deprecated class alias since 1.42 */ |
125 | class_alias( ParsoidRenderID::class, 'MediaWiki\\Parser\\Parsoid\\ParsoidRenderID' ); |