60 lines
1.6 KiB
PHP
60 lines
1.6 KiB
PHP
<?php
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/**
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* @file classes/search/SearchHelperParser.php
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*
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* Copyright (c) 2014-2021 Simon Fraser University
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* Copyright (c) 2000-2021 John Willinsky
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* Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
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*
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* @class SearchHelperParser
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*
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* @ingroup search
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*
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* @brief Class to extract text from a file using an external helper program.
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*/
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namespace PKP\search;
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use Exception;
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use PKP\config\Config;
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class SearchHelperParser extends SearchFileParser
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{
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/** @var string Type should match an index[$type] setting in the "search" section of config.inc.php */
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public $type;
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private $command;
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public function __construct($type, $filePath)
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{
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parent::__construct($filePath);
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$this->type = $type;
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}
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public function open()
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{
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$prog = Config::getVar('search', 'index[' . $this->type . ']');
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if (isset($prog)) {
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$this->command = sprintf($prog, escapeshellarg($this->getFilePath()));
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if (!($this->fp = @popen($this->command, 'r'))) {
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throw new Exception("Failed to parse file {$this->getFilePath()} through the command: {$this->command}\nLast error: " . error_get_last());
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}
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return true;
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}
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return false;
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}
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public function close()
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{
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if ($this->fp && ($exitCode = pclose($this->fp))) {
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throw new Exception("The indexation process exited with the code \"{$exitCode}\", perhaps the command failed: {$this->command}");
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}
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}
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}
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if (!PKP_STRICT_MODE) {
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class_alias('\PKP\search\SearchHelperParser', '\SearchHelperParser');
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}
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