MediaWiki REL1_37
NamespaceAwareForeignTitleFactory.php
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1<?php
34
40 private function normalizeNamespaceName( $name ) {
41 return strtolower( str_replace( ' ', '_', $name ) );
42 }
43
51 public function __construct( $foreignNamespaces ) {
52 $this->foreignNamespaces = $foreignNamespaces;
53 if ( $foreignNamespaces !== null ) {
54 $this->foreignNamespacesFlipped = [];
55 foreach ( $foreignNamespaces as $id => $name ) {
56 $newKey = self::normalizeNamespaceName( $name );
57 $this->foreignNamespacesFlipped[$newKey] = $id;
58 }
59 }
60 }
61
71 public function createForeignTitle( $title, $ns = null ) {
72 // Export schema version 0.5 and earlier (MW 1.18 and earlier) does not
73 // contain a <ns> tag, so we need to be able to handle that case.
74 if ( $ns === null ) {
76 } else {
77 return self::parseTitleWithNs( $title, $ns );
78 }
79 }
80
87 protected function parseTitleNoNs( $title ) {
88 $pieces = explode( ':', $title, 2 );
89 $key = self::normalizeNamespaceName( $pieces[0] );
90
91 // Does the part before the colon match a known namespace? Check the
92 // foreign namespaces
93 $isNamespacePartValid = isset( $this->foreignNamespacesFlipped[$key] );
94
95 if ( count( $pieces ) === 2 && $isNamespacePartValid ) {
96 list( $namespaceName, $pageName ) = $pieces;
97 $ns = $this->foreignNamespacesFlipped[$key];
98 } else {
99 $namespaceName = '';
100 $pageName = $title;
101 $ns = 0;
102 }
103
104 return new ForeignTitle( $ns, $namespaceName, $pageName );
105 }
106
114 protected function parseTitleWithNs( $title, $ns ) {
115 $pieces = explode( ':', $title, 2 );
116
117 // Is $title of the form Namespace:Title (true), or just Title (false)?
118 $titleIncludesNamespace = ( $ns != '0' && count( $pieces ) === 2 );
119
120 if ( isset( $this->foreignNamespaces[$ns] ) ) {
121 $namespaceName = $this->foreignNamespaces[$ns];
122 } else {
123 // If the foreign wiki is misconfigured, XML dumps can contain a page with
124 // a non-zero namespace ID, but whose title doesn't contain a colon
125 // (T114115). In those cases, output a made-up namespace name to avoid
126 // collisions. The ImportTitleFactory might replace this with something
127 // more appropriate.
128 $namespaceName = $titleIncludesNamespace ? $pieces[0] : "Ns$ns";
129 }
130
131 // We assume that the portion of the page title before the colon is the
132 // namespace name, except in the case of namespace 0.
133 if ( $titleIncludesNamespace ) {
134 $pageName = $pieces[1];
135 } else {
136 $pageName = $title;
137 }
138
139 return new ForeignTitle( $ns, $namespaceName, $pageName );
140 }
141}
A simple, immutable structure to hold the title of a page on a foreign MediaWiki installation.
A parser that translates page titles on a foreign wiki into ForeignTitle objects, using information a...
parseTitleWithNs( $title, $ns)
Helper function to parse the title when the namespace value is known.
parseTitleNoNs( $title)
Helper function to parse the title when the namespace ID is not specified.
createForeignTitle( $title, $ns=null)
Creates a ForeignTitle object based on the page title, and optionally the namespace ID,...
normalizeNamespaceName( $name)
Normalizes an array name for $foreignNamespacesFlipped.
A parser that translates page titles into ForeignTitle objects.