MediaWiki  1.29.2
ApiQueryExternalLinks.php
Go to the documentation of this file.
1 <?php
33 
34  public function __construct( ApiQuery $query, $moduleName ) {
35  parent::__construct( $query, $moduleName, 'el' );
36  }
37 
38  public function execute() {
39  if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
40  return;
41  }
42 
43  $params = $this->extractRequestParams();
44 
45  $query = $params['query'];
46  $protocol = ApiQueryExtLinksUsage::getProtocolPrefix( $params['protocol'] );
47 
48  $this->addFields( [
49  'el_from',
50  'el_to'
51  ] );
52 
53  $this->addTables( 'externallinks' );
54  $this->addWhereFld( 'el_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
55 
56  $whereQuery = $this->prepareUrlQuerySearchString( $query, $protocol );
57 
58  if ( $whereQuery !== null ) {
59  $this->addWhere( $whereQuery );
60  }
61 
62  // Don't order by el_from if it's constant in the WHERE clause
63  if ( count( $this->getPageSet()->getGoodTitles() ) != 1 ) {
64  $this->addOption( 'ORDER BY', 'el_from' );
65  }
66 
67  // If we're querying all protocols, use DISTINCT to avoid repeating protocol-relative links twice
68  if ( $protocol === null ) {
69  $this->addOption( 'DISTINCT' );
70  }
71 
72  $this->addOption( 'LIMIT', $params['limit'] + 1 );
73  $offset = isset( $params['offset'] ) ? $params['offset'] : 0;
74  if ( $offset ) {
75  $this->addOption( 'OFFSET', $params['offset'] );
76  }
77 
78  $res = $this->select( __METHOD__ );
79 
80  $count = 0;
81  foreach ( $res as $row ) {
82  if ( ++$count > $params['limit'] ) {
83  // We've reached the one extra which shows that
84  // there are additional pages to be had. Stop here...
85  $this->setContinueEnumParameter( 'offset', $offset + $params['limit'] );
86  break;
87  }
88  $entry = [];
89  $to = $row->el_to;
90  // expand protocol-relative urls
91  if ( $params['expandurl'] ) {
92  $to = wfExpandUrl( $to, PROTO_CANONICAL );
93  }
94  ApiResult::setContentValue( $entry, 'url', $to );
95  $fit = $this->addPageSubItem( $row->el_from, $entry );
96  if ( !$fit ) {
97  $this->setContinueEnumParameter( 'offset', $offset + $count - 1 );
98  break;
99  }
100  }
101  }
102 
103  public function getCacheMode( $params ) {
104  return 'public';
105  }
106 
107  public function getAllowedParams() {
108  return [
109  'limit' => [
110  ApiBase::PARAM_DFLT => 10,
111  ApiBase::PARAM_TYPE => 'limit',
112  ApiBase::PARAM_MIN => 1,
115  ],
116  'offset' => [
117  ApiBase::PARAM_TYPE => 'integer',
118  ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
119  ],
120  'protocol' => [
122  ApiBase::PARAM_DFLT => '',
123  ],
124  'query' => null,
125  'expandurl' => false,
126  ];
127  }
128 
129  protected function getExamplesMessages() {
130  return [
131  'action=query&prop=extlinks&titles=Main%20Page'
132  => 'apihelp-query+extlinks-example-simple',
133  ];
134  }
135 
136  public function getHelpUrls() {
137  return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Extlinks';
138  }
139 }
ApiQueryBase\addFields
addFields( $value)
Add a set of fields to select to the internal array.
Definition: ApiQueryBase.php:198
ApiQuery
This is the main query class.
Definition: ApiQuery.php:40
PROTO_CANONICAL
const PROTO_CANONICAL
Definition: Defines.php:221
captcha-old.count
count
Definition: captcha-old.py:225
ApiBase\PARAM_HELP_MSG
const PARAM_HELP_MSG
(string|array|Message) Specify an alternative i18n documentation message for this parameter.
Definition: ApiBase.php:128
ApiBase\PARAM_TYPE
const PARAM_TYPE
(string|string[]) Either an array of allowed value strings, or a string type as described below.
Definition: ApiBase.php:91
$params
$params
Definition: styleTest.css.php:40
$res
$res
Definition: database.txt:21
ApiQueryBase\addOption
addOption( $name, $value=null)
Add an option such as LIMIT or USE INDEX.
Definition: ApiQueryBase.php:333
php
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Definition: injection.txt:35
ApiResult\setContentValue
static setContentValue(array &$arr, $name, $value, $flags=0)
Add an output value to the array by name and mark as META_CONTENT.
Definition: ApiResult.php:478
ApiQueryExtLinksUsage\prepareProtocols
static prepareProtocols()
Definition: ApiQueryExtLinksUsage.php:196
$query
null for the wiki Added should default to null in handler for backwards compatibility add a value to it if you want to add a cookie that have to vary cache options can modify $query
Definition: hooks.txt:1572
ApiBase\PARAM_MIN
const PARAM_MIN
(integer) Lowest value allowed for the parameter, for PARAM_TYPE 'integer' and 'limit'.
Definition: ApiBase.php:103
ApiQueryBase
This is a base class for all Query modules.
Definition: ApiQueryBase.php:37
ApiBase\LIMIT_BIG1
const LIMIT_BIG1
Fast query, standard limit.
Definition: ApiBase.php:203
ApiBase\PARAM_MAX
const PARAM_MAX
(integer) Max value allowed for the parameter, for PARAM_TYPE 'integer' and 'limit'.
Definition: ApiBase.php:94
ApiQueryBase\addTables
addTables( $tables, $alias=null)
Add a set of tables to the internal array.
Definition: ApiQueryBase.php:164
ApiQueryBase\select
select( $method, $extraQuery=[], array &$hookData=null)
Execute a SELECT query based on the values in the internal arrays.
Definition: ApiQueryBase.php:358
ApiBase\extractRequestParams
extractRequestParams( $parseLimit=true)
Using getAllowedParams(), this function makes an array of the values provided by the user,...
Definition: ApiBase.php:718
ApiQueryBase\addWhereFld
addWhereFld( $field, $value)
Equivalent to addWhere(array($field => $value))
Definition: ApiQueryBase.php:266
ApiQueryBase\getPageSet
getPageSet()
Get the PageSet object to work on.
Definition: ApiQueryBase.php:136
ApiBase\LIMIT_BIG2
const LIMIT_BIG2
Fast query, apihighlimits limit.
Definition: ApiBase.php:205
ApiBase\PARAM_DFLT
const PARAM_DFLT
(null|boolean|integer|string) Default value of the parameter.
Definition: ApiBase.php:52
as
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
ApiBase\PARAM_MAX2
const PARAM_MAX2
(integer) Max value allowed for the parameter for users with the apihighlimits right,...
Definition: ApiBase.php:100
ApiQueryBase\addWhere
addWhere( $value)
Add a set of WHERE clauses to the internal array.
Definition: ApiQueryBase.php:233
ApiQueryBase\setContinueEnumParameter
setContinueEnumParameter( $paramName, $paramValue)
Set a query-continue value.
Definition: ApiQueryBase.php:535
ApiQueryBase\prepareUrlQuerySearchString
prepareUrlQuerySearchString( $query=null, $protocol=null)
Definition: ApiQueryBase.php:418
ApiQueryBase\addPageSubItem
addPageSubItem( $pageId, $item, $elemname=null)
Same as addPageSubItems(), but one element of $data at a time.
Definition: ApiQueryBase.php:514
wfExpandUrl
wfExpandUrl( $url, $defaultProto=PROTO_CURRENT)
Expand a potentially local URL to a fully-qualified URL.
Definition: GlobalFunctions.php:552
ApiQueryExtLinksUsage\getProtocolPrefix
static getProtocolPrefix( $protocol)
Definition: ApiQueryExtLinksUsage.php:208