100 lines
3.1 KiB
PHP
100 lines
3.1 KiB
PHP
<?php
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namespace app\common\service;
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/**
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* 从简历文件 URL 提取可读文本（PDF / docx），供神仙 AI 对话与简历分析共用。
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*/
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class ResumeFileExtractService
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{
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public static function extractFromUrl(string $fileUrl): string
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{
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if ($fileUrl === '' || !filter_var($fileUrl, FILTER_VALIDATE_URL)) {
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return '';
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}
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$ext = strtolower(pathinfo(parse_url($fileUrl, PHP_URL_PATH) ?? '', PATHINFO_EXTENSION));
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if (in_array($ext, ['jpg', 'jpeg', 'png', 'gif', 'webp'], true)) {
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return '';
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}
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$ctx = stream_context_create([
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'http' => [
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'timeout' => 15,
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'user_agent' => 'Mozilla/5.0',
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],
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'ssl' => [
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'verify_peer' => false,
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'verify_peer_name' => false,
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],
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]);
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$raw = @file_get_contents($fileUrl, false, $ctx);
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if ($raw === false || strlen($raw) < 10) {
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return '';
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}
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if ($ext === 'docx') {
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return self::extractDocxText($raw);
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}
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if ($ext === 'pdf') {
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return self::extractPdfText($raw);
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}
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return '';
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}
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private static function extractDocxText(string $raw): string
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{
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$tmp = tempnam(sys_get_temp_dir(), 'docx_');
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if ($tmp === false) {
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return '';
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}
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if (file_put_contents($tmp, $raw) === false) {
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@unlink($tmp);
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return '';
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}
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$zip = new \ZipArchive();
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if ($zip->open($tmp) !== true) {
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@unlink($tmp);
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return '';
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}
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$xml = $zip->getFromName('word/document.xml');
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$zip->close();
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@unlink($tmp);
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if ($xml === false || $xml === '') {
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return '';
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}
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preg_match_all('/<w:t[^>]*>([^<]*)<\/w:t>/u', $xml, $m);
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$text = isset($m[1]) ? implode('', $m[1]) : '';
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$text = html_entity_decode($text, ENT_QUOTES | ENT_XML1, 'UTF-8');
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$text = preg_replace('/[^\x{4e00}-\x{9fff}\x{3000}-\x{303f}a-zA-Z0-9\s\.,;:!?()（）【】\[\]\/\-_@]/u', ' ', $text);
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return trim(preg_replace('/\s{2,}/', ' ', $text));
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}
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private static function extractPdfText(string $raw): string
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{
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$text = '';
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if (preg_match_all('/BT\s+(.*?)\s+ET/s', $raw, $blocks)) {
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foreach ($blocks[1] as $block) {
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if (preg_match_all('/\(([^)]*)\)\s*Tj/s', $block, $tj)) {
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$text .= implode(' ', $tj[1]) . ' ';
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}
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if (preg_match_all('/\[(.*?)]\s*TJ/s', $block, $tjArr)) {
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foreach ($tjArr[1] as $inner) {
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if (preg_match_all('/\(([^)]*)\)/s', $inner, $parts)) {
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$text .= implode('', $parts[1]) . ' ';
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}
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}
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}
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}
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}
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$text = preg_replace('/[^\x{4e00}-\x{9fff}\x{3000}-\x{303f}a-zA-Z0-9\s\.,;:!?()（）【】\[\]\/\-_@]/u', ' ', $text);
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return trim(preg_replace('/\s{2,}/', ' ', $text));
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}
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}
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