303 lines
11 KiB
PHP
303 lines
11 KiB
PHP
<?php
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/**
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* Created by PhpStorm.
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* User: Administrator
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* Date: 2026/6/2
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* Time: 15:04
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*/
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namespace app\api\controller;
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class Author
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{
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public function get_hindex()
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{
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$name = trim(input('get.name'));
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$affil = trim(input('get.affil'));
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$debug = (int) input('get.debug', 0);
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$cookieFile = tempnam(sys_get_temp_dir(), 'scopus_cookie_');
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if (empty($name)) {
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return json(['code' => 0, 'msg' => '请输入作者姓名']);
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}
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// 1) 获取 freelookup 页面，用于拿到真实提交地址和隐藏字段。
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$lookupUrl = 'https://www.scopus.com/freelookup/form/author.uri?zone=TopNavBar&origin=NO%20ORIGIN%20DEFINED';
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$lookupRes = $this->httpRequest($lookupUrl, null, true, '', $cookieFile);
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if (!$lookupRes['ok']) {
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@unlink($cookieFile);
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$ret = ['code' => 0, 'msg' => '访问 Scopus 失败：' . $lookupRes['msg']];
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if ($debug === 1) {
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$ret['debug'] = $this->buildDebugInfo($lookupRes['url'], $lookupRes['http_code'], $lookupRes['body']);
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}
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return json($ret);
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}
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$formInfo = $this->extractScopusLookupForm($lookupRes['body']);
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if (empty($formInfo['action'])) {
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@unlink($cookieFile);
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$ret = ['code' => 0, 'msg' => 'Scopus 页面结构已变化，未找到查询表单'];
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if ($debug === 1) {
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$ret['debug'] = $this->buildDebugInfo($lookupRes['url'], $lookupRes['http_code'], $lookupRes['body']);
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}
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return json($ret);
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}
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// 2) 组装查询参数（姓名 + 机构），并携带隐藏字段提交。
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$postData = $formInfo['hidden_fields'];
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$postData['authLast'] = $name;
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$postData['affil'] = $affil;
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$searchRes = $this->httpRequest($formInfo['action'], $postData, true, $lookupUrl, $cookieFile);
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if (!$searchRes['ok']) {
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@unlink($cookieFile);
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$ret = ['code' => 0, 'msg' => '查询 Scopus 失败：' . $searchRes['msg']];
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if ($debug === 1) {
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$ret['debug'] = $this->buildDebugInfo($searchRes['url'], $searchRes['http_code'], $searchRes['body']);
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}
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return json($ret);
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}
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$blockMsg = $this->detectScopusBlocking($searchRes['body']);
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if (!empty($blockMsg)) {
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@unlink($cookieFile);
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$ret = ['code' => 0, 'msg' => $blockMsg];
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$fallback = $this->fallbackByOpenAlex($name, $affil);
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if ($fallback !== null) {
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$ret = array_merge($fallback, [
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'msg' => $blockMsg . '，已自动降级 OpenAlex 结果'
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]);
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}
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if ($debug === 1) {
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$ret['debug'] = $this->buildDebugInfo($searchRes['url'], $searchRes['http_code'], $searchRes['body']);
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}
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return json($ret);
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}
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// 3) 从返回页提取 h-index（优先匹配“h-index”关键词附近数字）。
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$hIndex = $this->extractHIndexFromHtml($searchRes['body']);
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if ($hIndex === null) {
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@unlink($cookieFile);
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$ret = [
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'code' => 0,
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'msg' => '未从 Scopus 结果页解析到 H 指数（可能需要人工登录或页面结构调整）'
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];
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if ($debug === 1) {
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$ret['debug'] = $this->buildDebugInfo($searchRes['url'], $searchRes['http_code'], $searchRes['body']);
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}
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return json($ret);
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}
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@unlink($cookieFile);
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$ret = [
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'code' => 1,
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'name' => $name,
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'affil' => $affil,
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'h_index_scopus' => $hIndex,
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'source' => 'scopus_freelookup',
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];
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if ($debug === 1) {
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$ret['debug'] = $this->buildDebugInfo($searchRes['url'], $searchRes['http_code'], $searchRes['body']);
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}
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return json($ret);
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}
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private function httpRequest($url, $postData = null, $followLocation = true, $referer = '', $cookieFile = '')
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{
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$ch = curl_init();
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$options = [
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CURLOPT_URL => $url,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_SSL_VERIFYPEER => false,
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CURLOPT_SSL_VERIFYHOST => false,
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CURLOPT_FOLLOWLOCATION => $followLocation,
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CURLOPT_MAXREDIRS => 8,
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CURLOPT_TIMEOUT => 30,
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CURLOPT_CONNECTTIMEOUT => 15,
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CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36',
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CURLOPT_ENCODING => '',
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CURLOPT_HTTPHEADER => [
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'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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'Accept-Language: zh-CN,zh;q=0.9,en;q=0.8',
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],
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];
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if (!empty($referer)) {
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$options[CURLOPT_REFERER] = $referer;
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}
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if (!empty($cookieFile)) {
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$options[CURLOPT_COOKIEJAR] = $cookieFile;
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$options[CURLOPT_COOKIEFILE] = $cookieFile;
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}
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if (is_array($postData)) {
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$options[CURLOPT_POST] = true;
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$options[CURLOPT_POSTFIELDS] = http_build_query($postData);
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}
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curl_setopt_array($ch, $options);
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$body = curl_exec($ch);
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$error = curl_error($ch);
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$httpCode = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
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$finalUrl = (string) curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
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curl_close($ch);
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if ($error) {
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if (strpos($error, 'Maximum (') !== false && strpos($error, 'redirects followed') !== false) {
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return [
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'ok' => false,
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'msg' => 'Scopus 跳转过多（可能触发登录/验证页面），请稍后重试或先在浏览器登录 Scopus',
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'body' => '',
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'http_code' => $httpCode,
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'url' => $finalUrl
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];
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}
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return ['ok' => false, 'msg' => $error, 'body' => '', 'http_code' => $httpCode, 'url' => $finalUrl];
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}
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if ($httpCode >= 400 || $httpCode === 0) {
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return ['ok' => false, 'msg' => 'HTTP ' . $httpCode, 'body' => (string) $body, 'http_code' => $httpCode, 'url' => $finalUrl];
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}
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return ['ok' => true, 'msg' => '', 'body' => (string) $body, 'http_code' => $httpCode, 'url' => $finalUrl];
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}
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private function detectScopusBlocking($html)
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{
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if (empty($html)) {
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return '';
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}
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$text = strtolower(strip_tags($html));
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if (strpos($text, 'sign in') !== false || strpos($text, 'institutional sign in') !== false) {
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return 'Scopus 返回登录页，当前环境未授权访问作者详情页面';
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}
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if (strpos($text, 'captcha') !== false || strpos($text, 'are you a robot') !== false) {
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return 'Scopus 触发了人机验证，当前接口无法自动通过';
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}
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return '';
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}
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private function buildDebugInfo($finalUrl, $httpCode, $html)
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{
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$normalized = html_entity_decode(strip_tags((string) $html), ENT_QUOTES, 'UTF-8');
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$normalized = preg_replace('/\s+/u', ' ', $normalized);
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$snippet = mb_substr($normalized, 0, 300, 'UTF-8');
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return [
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'final_url' => (string) $finalUrl,
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'http_code' => (int) $httpCode,
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'page_snippet' => $snippet,
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'contains_signin' => stripos($normalized, 'sign in') !== false ? 1 : 0,
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'contains_captcha' => stripos($normalized, 'captcha') !== false ? 1 : 0,
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];
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}
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private function extractScopusLookupForm($html)
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{
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$ret = [
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'action' => '',
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'hidden_fields' => [],
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];
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if (empty($html)) {
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return $ret;
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}
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// 优先定位包含 author 的 form，减少解析误匹配。
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if (preg_match('/<form[^>]*action=["\']([^"\']+)["\'][^>]*>.*?<\/form>/is', $html, $formMatch)) {
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$action = trim($formMatch[1]);
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if (!preg_match('/^https?:\/\//i', $action)) {
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$action = 'https://www.scopus.com' . (substr($action, 0, 1) === '/' ? '' : '/') . $action;
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}
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$ret['action'] = $action;
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if (preg_match_all('/<input[^>]*type=["\']hidden["\'][^>]*>/is', $formMatch[0], $inputs)) {
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foreach ($inputs[0] as $inputTag) {
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if (preg_match('/name=["\']([^"\']+)["\']/i', $inputTag, $nameMatch)) {
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$fieldName = trim($nameMatch[1]);
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$fieldVal = '';
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if (preg_match('/value=["\']([^"\']*)["\']/i', $inputTag, $valMatch)) {
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$fieldVal = $valMatch[1];
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}
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$ret['hidden_fields'][$fieldName] = $fieldVal;
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}
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}
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}
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}
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return $ret;
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}
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private function extractHIndexFromHtml($html)
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{
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if (empty($html)) {
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return null;
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}
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$text = html_entity_decode(strip_tags($html), ENT_QUOTES, 'UTF-8');
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$text = preg_replace('/\s+/u', ' ', $text);
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$patterns = [
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'/h[\-\s]?index[^0-9]{0,20}([0-9]{1,3})/iu',
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'/([0-9]{1,3})[^0-9]{0,20}h[\-\s]?index/iu',
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];
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foreach ($patterns as $pattern) {
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if (preg_match($pattern, $text, $m)) {
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return (int) $m[1];
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}
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}
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return null;
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}
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private function fallbackByOpenAlex($name, $affil)
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{
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$search = urlencode($name);
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$url = "https://api.openalex.org/authors?search={$search}&limit=8";
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$res = $this->httpRequest($url, null, true);
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if (!$res['ok']) {
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return null;
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}
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$data = json_decode($res['body'], true);
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$list = $data['results'] ?? [];
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if (empty($list)) {
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return null;
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}
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$targetAffil = strtolower((string) $affil);
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$match = null;
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foreach ($list as $item) {
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if (empty($targetAffil)) {
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$match = $item;
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break;
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}
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$insts = $item['affiliations'] ?? [];
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foreach ($insts as $inst) {
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$instName = strtolower($inst['display_name'] ?? '');
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if ($instName !== '' && strpos($instName, $targetAffil) !== false) {
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$match = $item;
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break 2;
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}
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}
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}
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if ($match === null) {
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$match = $list[0];
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}
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return [
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'code' => 1,
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'name' => $match['display_name'] ?? $name,
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'affil' => !empty($match['affiliations'][0]['display_name']) ? $match['affiliations'][0]['display_name'] : $affil,
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'h_index_scopus' => $match['summary_stats']['h_index_scopus'] ?? null,
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'h_index_openalex' => $match['summary_stats']['h_index'] ?? null,
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'source' => 'openalex_fallback',
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];
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}
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} |