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139 lines
3.4 KiB
139 lines
3.4 KiB
<?php
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/**
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* Refbase database connector
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*/
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class RefbaseConnector {
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/// Database location
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private $dbHost = "";
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/// Database name
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private $dbName = "";
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/// Database user
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private $dbUser = "";
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/// Database password
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private $dbPass = "";
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/// Character set
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private $dbCharset = "";
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/// Reference table
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private $dbRefTable = "";
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/// User data table (for cite key entry)
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private $dbUserDataTable = "";
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/// Method to access database (mysql or PDO)
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private $dbAccessMethod = "";
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/**
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* Constructor
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*/
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public function __construct() {
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global $wgRefbaseDbHost;
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global $wgRefbaseDbName;
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global $wgRefbaseDbUser;
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global $wgRefbaseDbPass;
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global $wgRefbaseDbRefTable;
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global $wgRefbaseDbUserDataTable;
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global $wgRefbaseDbCharset;
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global $wgRefbaseDbAccessMethod;
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// Read from global configuration
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$this->dbHost = $wgRefbaseDbHost;
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$this->dbName = $wgRefbaseDbName;
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$this->dbUser = $wgRefbaseDbUser;
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$this->dbPass = $wgRefbaseDbPass;
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$this->dbRefTable = $wgRefbaseDbRefTable;
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$this->dbUserDataTable = $wgRefbaseDbUserDataTable;
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$this->dbCharset = $wgRefbaseDbCharset;
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$this->dbAccessMethod = $wgRefbaseDbAccessMethod;
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}
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/**
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* Query by serial number or cite key entry
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*/
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public function getEntry( $input, $tagTypeList, & $outputEntry,
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$fieldList ) {
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// List of fields to extract (prefix 'r.' to each element)
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$fieldPref = $fieldList;
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array_walk( $fieldPref, function ( &$value, $key) {
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$value="r.$value";
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} );
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$fieldPref = join(",", $fieldPref);
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$flagFound = false;
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for ( $i = 0; $i < count($tagTypeList) && ! $flagFound; $i++ ) {
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$tagType = $tagTypeList[$i];
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// Query string
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$queryStr = "";
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if ( $tagType === 'citekey' ) {
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$queryStr = "SELECT $fieldPref " .
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"FROM " . $this->dbRefTable . " r " .
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"INNER JOIN " . $this->dbUserDataTable . " u " .
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"ON r.serial = u.record_id " .
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"WHERE u.cite_key='$input'";
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} else {
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$queryStr = "SELECT $fieldPref " .
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"FROM " . $this->dbRefTable . " r " .
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"WHERE r.serial='$input'";
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}
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if ( strtolower( $this->dbAccessMethod ) === 'pdo' ) {
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// Connect and query
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$link = new PDO( 'mysql:host=' . $this->dbHost . ';dbname=' .
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$this->dbName . ';charset=' . $this->dbCharset,
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$this->dbUser, $this->dbPass );
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$dbexec = $link->prepare( $queryStr );
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try {
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// Perform query
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$outputEntry = $dbexec->execute();
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} catch( PDOException $ex ) {
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$outputEntry = wfMessage( 'refbase-error-dbquery' )->text() .
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$ex->getMessage();
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return false;
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}
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$outputEntry = $dbexec->fetch(PDO::FETCH_ASSOC);
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} elseif ( strtolower( $this->dbAccessMethod ) === 'mysql' ) {
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$link = mysqli_connect( $this->dbHost, $this->dbUser, $this->dbPass, $this->dbName ) or die("db error");
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if ( !$link ) {
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$outputEntry = wfMessage( 'refbase-error-mysqlconn' )->text();
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return false;
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}
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$result = mysqli_query($link, $queryStr );
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if ( !$result ) {
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$outputEntry = wfMessage( 'refbase-error-dbquery' )->text() .
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mysqli_error($link);
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return false;
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}
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$outputEntry = mysqli_fetch_array($result);
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}
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if ( !empty( $outputEntry ) ) {
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$flagFound = true;
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}
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}
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if ( empty( $outputEntry ) ) {
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$outputEntry = wfMessage( 'refbase-error-notfound' )->text();
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return false;
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}
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return true;
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}
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}
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