参考文献作者堆叠

参考文献相关性检测作者ai写作辅助检测工作
2026-07-15 10:49:05 +08:00
parent da71dfc04e
commit 8785610e6d
27 changed files with 10008 additions and 204 deletions
--- a/application/common/EuropePmcService.php
+++ b/application/common/EuropePmcService.php
@@ -0,0 +1,120 @@
+<?php
+
+namespace app\common;
+
+/**
+ * Europe PMC REST API
+ * @see https://europepmc.org/RestfulWebService
+ */
+class EuropePmcService
+{
+    private $base = 'https://www.ebi.ac.uk/europepmc/webservices/rest';
+    private $timeout = 25;
+
+    public function searchByDoi($doi)
+    {
+        $doi = trim((string)$doi);
+        if ($doi === '') {
+            return null;
+        }
+        $query = 'DOI:"' . str_replace('"', '', $doi) . '"';
+        return $this->searchFirst($query);
+    }
+
+    public function searchByBibliographic($title, $author, $year = '')
+    {
+        $title = trim((string)$title);
+        if ($title === '') {
+            return null;
+        }
+        $parts = ['TITLE:"' . str_replace('"', '', $title) . '"'];
+        $author = trim((string)$author);
+        if ($author !== '') {
+            $firstAuthor = preg_split('/[,;]/', $author);
+            $firstAuthor = trim((string)($firstAuthor[0] ?? ''));
+            if ($firstAuthor !== '') {
+                $parts[] = 'AUTH:"' . str_replace('"', '', $firstAuthor) . '"';
+            }
+        }
+        $year = trim((string)$year);
+        if ($year !== '' && preg_match('/^(19|20)\d{2}$/', $year)) {
+            $parts[] = 'PUB_YEAR:' . $year;
+        }
+        return $this->searchFirst(implode(' AND ', $parts));
+    }
+
+    public function fetchFullTextByPmcid($pmcid)
+    {
+        $pmcid = strtoupper(trim((string)$pmcid));
+        if ($pmcid === '') {
+            return '';
+        }
+        if (strpos($pmcid, 'PMC') !== 0) {
+            $pmcid = 'PMC' . preg_replace('/\D/', '', $pmcid);
+        }
+        $url = $this->base . '/' . rawurlencode($pmcid) . '/fullTextXML';
+        $xml = $this->httpGet($url);
+        if ($xml === '') {
+            return '';
+        }
+        return $this->xmlToPlainText($xml);
+    }
+
+    private function searchFirst($query)
+    {
+        $url = $this->base . '/search?' . http_build_query([
+            'query'    => $query,
+            'format'   => 'json',
+            'pageSize' => 1,
+        ]);
+        $raw = $this->httpGet($url);
+        if ($raw === '') {
+            return null;
+        }
+        $json = json_decode($raw, true);
+        $list = $json['resultList']['result'] ?? [];
+        if (empty($list[0]) || !is_array($list[0])) {
+            return null;
+        }
+        $row = $list[0];
+        return [
+            'title'         => trim((string)($row['title'] ?? '')),
+            'abstract'      => trim((string)($row['abstractText'] ?? '')),
+            'doi'           => trim((string)($row['doi'] ?? '')),
+            'pmid'          => trim((string)($row['pmid'] ?? '')),
+            'pmcid'         => trim((string)($row['pmcid'] ?? '')),
+            'journal'       => trim((string)($row['journalTitle'] ?? '')),
+            'year'          => trim((string)($row['pubYear'] ?? '')),
+            'source'        => 'europe_pmc',
+        ];
+    }
+
+    private function xmlToPlainText($xml)
+    {
+        $xml = trim((string)$xml);
+        if ($xml === '') {
+            return '';
+        }
+        libxml_use_internal_errors(true);
+        $doc = new \DOMDocument();
+        if (!$doc->loadXML($xml)) {
+            return trim(strip_tags($xml));
+        }
+        return trim(preg_replace('/\s+/u', ' ', $doc->textContent));
+    }
+
+    private function httpGet($url)
+    {
+        $ch = curl_init();
+        curl_setopt_array($ch, [
+            CURLOPT_URL            => $url,
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_TIMEOUT        => $this->timeout,
+            CURLOPT_SSL_VERIFYPEER => false,
+            CURLOPT_HTTPHEADER     => ['User-Agent: TMRjournals-EuropePMC/1.0'],
+        ]);
+        $res = curl_exec($ch);
+        curl_close($ch);
+        return is_string($res) ? $res : '';
+    }
+}