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1 | <?php |
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2 | /** |
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3 | * |
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4 | * |
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5 | * Created on Dec 22, 2010 |
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6 | * |
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7 | * Copyright © 2010 Roan Kattouw "<Firstname>.<Lastname>@gmail.com" |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify |
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10 | * it under the terms of the GNU General Public License as published by |
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11 | * the Free Software Foundation; either version 2 of the License, or |
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12 | * (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License along |
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20 | * with this program; if not, write to the Free Software Foundation, Inc., |
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21 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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22 | * http://www.gnu.org/copyleft/gpl.html |
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23 | * |
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24 | * @file |
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25 | */ |
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26 | |||
27 | /** |
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28 | * Query module to get the results of a QueryPage-based special page |
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29 | * |
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30 | * @ingroup API |
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31 | */ |
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32 | class ApiQueryQueryPage extends ApiQueryGeneratorBase { |
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33 | private $qpMap; |
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34 | |||
35 | public function __construct( ApiQuery $query, $moduleName ) { |
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36 | parent::__construct( $query, $moduleName, 'qp' ); |
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37 | // Build mapping from special page names to QueryPage classes |
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38 | $uselessQueryPages = $this->getConfig()->get( 'APIUselessQueryPages' ); |
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39 | $this->qpMap = []; |
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40 | foreach ( QueryPage::getPages() as $page ) { |
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41 | if ( !in_array( $page[1], $uselessQueryPages ) ) { |
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42 | $this->qpMap[$page[1]] = $page[0]; |
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43 | } |
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44 | } |
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45 | } |
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46 | |||
47 | public function execute() { |
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48 | $this->run(); |
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49 | } |
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50 | |||
51 | public function executeGenerator( $resultPageSet ) { |
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52 | $this->run( $resultPageSet ); |
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53 | } |
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54 | |||
55 | /** |
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56 | * @param ApiPageSet $resultPageSet |
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57 | */ |
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58 | public function run( $resultPageSet = null ) { |
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59 | $params = $this->extractRequestParams(); |
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60 | $result = $this->getResult(); |
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61 | |||
62 | /** @var $qp QueryPage */ |
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63 | $qp = new $this->qpMap[$params['page']](); |
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64 | if ( !$qp->userCanExecute( $this->getUser() ) ) { |
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65 | $this->dieUsageMsg( 'specialpage-cantexecute' ); |
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66 | } |
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67 | |||
68 | $r = [ 'name' => $params['page'] ]; |
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69 | if ( $qp->isCached() ) { |
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70 | if ( !$qp->isCacheable() ) { |
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71 | $r['disabled'] = true; |
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72 | } else { |
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73 | $r['cached'] = true; |
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74 | $ts = $qp->getCachedTimestamp(); |
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75 | if ( $ts ) { |
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76 | $r['cachedtimestamp'] = wfTimestamp( TS_ISO_8601, $ts ); |
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77 | } |
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78 | $r['maxresults'] = $this->getConfig()->get( 'QueryCacheLimit' ); |
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79 | } |
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80 | } |
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81 | $result->addValue( [ 'query' ], $this->getModuleName(), $r ); |
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82 | |||
83 | if ( $qp->isCached() && !$qp->isCacheable() ) { |
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84 | // Disabled query page, don't run the query |
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85 | return; |
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86 | } |
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87 | |||
88 | $res = $qp->doQuery( $params['offset'], $params['limit'] + 1 ); |
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89 | $count = 0; |
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90 | $titles = []; |
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91 | foreach ( $res as $row ) { |
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92 | View Code Duplication | if ( ++$count > $params['limit'] ) { |
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93 | // We've had enough |
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94 | $this->setContinueEnumParameter( 'offset', $params['offset'] + $params['limit'] ); |
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95 | break; |
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96 | } |
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97 | |||
98 | $title = Title::makeTitle( $row->namespace, $row->title ); |
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99 | if ( is_null( $resultPageSet ) ) { |
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100 | $data = [ 'value' => $row->value ]; |
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101 | if ( $qp->usesTimestamps() ) { |
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102 | $data['timestamp'] = wfTimestamp( TS_ISO_8601, $row->value ); |
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103 | } |
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104 | self::addTitleInfo( $data, $title ); |
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105 | |||
106 | foreach ( $row as $field => $value ) { |
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107 | if ( !in_array( $field, [ 'namespace', 'title', 'value', 'qc_type' ] ) ) { |
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108 | $data['databaseResult'][$field] = $value; |
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109 | } |
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110 | } |
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111 | |||
112 | $fit = $result->addValue( [ 'query', $this->getModuleName(), 'results' ], null, $data ); |
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113 | if ( !$fit ) { |
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114 | $this->setContinueEnumParameter( 'offset', $params['offset'] + $count - 1 ); |
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115 | break; |
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116 | } |
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117 | } else { |
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118 | $titles[] = $title; |
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119 | } |
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120 | } |
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121 | if ( is_null( $resultPageSet ) ) { |
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122 | $result->addIndexedTagName( |
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123 | [ 'query', $this->getModuleName(), 'results' ], |
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124 | 'page' |
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125 | ); |
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126 | } else { |
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127 | $resultPageSet->populateFromTitles( $titles ); |
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128 | } |
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129 | } |
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130 | |||
131 | public function getCacheMode( $params ) { |
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132 | /** @var $qp QueryPage */ |
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133 | $qp = new $this->qpMap[$params['page']](); |
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134 | if ( $qp->getRestriction() != '' ) { |
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135 | return 'private'; |
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136 | } |
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137 | |||
138 | return 'public'; |
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139 | } |
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140 | |||
141 | public function getAllowedParams() { |
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142 | return [ |
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143 | 'page' => [ |
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144 | ApiBase::PARAM_TYPE => array_keys( $this->qpMap ), |
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145 | ApiBase::PARAM_REQUIRED => true |
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146 | ], |
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147 | 'offset' => [ |
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148 | ApiBase::PARAM_DFLT => 0, |
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149 | ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
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150 | ], |
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151 | 'limit' => [ |
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152 | ApiBase::PARAM_DFLT => 10, |
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153 | ApiBase::PARAM_TYPE => 'limit', |
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154 | ApiBase::PARAM_MIN => 1, |
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155 | ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1, |
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156 | ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2 |
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157 | ], |
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158 | ]; |
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159 | } |
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160 | |||
161 | protected function getExamplesMessages() { |
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162 | return [ |
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163 | 'action=query&list=querypage&qppage=Ancientpages' |
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164 | => 'apihelp-query+querypage-example-ancientpages', |
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165 | ]; |
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166 | } |
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167 | |||
168 | public function getHelpUrls() { |
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169 | return 'https://www.mediawiki.org/wiki/API:Querypage'; |
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170 | } |
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171 | } |
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172 |
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