mirror of https://github.com/supernets/LibreY.git
65 lines
2.4 KiB
PHP
65 lines
2.4 KiB
PHP
<?php
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class DuckDuckGoRequest extends EngineRequest {
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public function get_request_url() {
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$query_encoded = str_replace("%22", "\"", urlencode($this->query));
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$results = array();
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$domain = 'com';
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$results_language = $this->opts->language;
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$number_of_results = $this->opts->number_of_results;
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$url = "https://html.duckduckgo.$domain/html/?q=$query_encoded&kd=-1&s=" . 3 * $this->page;
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if (3 > strlen($results_language) && 0 < strlen($results_language))
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$url .= "&lr=lang_$results_language";
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if (3 > strlen($number_of_results) && 0 < strlen($number_of_results))
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$url .= "&num=$number_of_results";
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if (isset($_COOKIE["safe_search"]))
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$url .= "&safe=medium";
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return $url;
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}
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public function parse_results($response) {
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$results = array();
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$xpath = get_xpath($response);
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if (!$xpath)
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return $results;
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foreach($xpath->query("/html/body/div[1]/div[". count($xpath->query('/html/body/div[1]/div')) ."]/div/div/div[contains(@class, 'web-result')]/div") as $result) {
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$url = $xpath->evaluate(".//h2[@class='result__title']//a/@href", $result)[0];
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if ($url == null)
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continue;
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if (!empty($results)) { // filter duplicate results
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if (end($results)["url"] == $url->textContent)
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continue;
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}
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$url = $url->textContent;
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$title = $xpath->evaluate(".//h2[@class='result__title']", $result)[0];
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$description = $xpath->evaluate(".//a[@class='result__snippet']", $result)[0];
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array_push($results,
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array (
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"title" => htmlspecialchars($title->textContent),
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"url" => htmlspecialchars($url),
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// base_url is to be removed in the future, see #47
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"base_url" => htmlspecialchars(get_base_url($url)),
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"description" => $description == null ?
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TEXTS["result_no_description"] :
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htmlspecialchars($description->textContent)
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)
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);
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}
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return $results;
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}
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}
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?>
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