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