481 lines
15 KiB
PHP
481 lines
15 KiB
PHP
<?php
|
||
|
||
namespace app\common\utils\crawl\service;
|
||
|
||
use app\common\model\UsedcarCrawlResultsImages;
|
||
use app\common\service\UploadService;
|
||
use GuzzleHttp\Client;
|
||
use GuzzleHttp\Exception\GuzzleException;
|
||
use QL\QueryList;
|
||
use support\exception\BusinessException;
|
||
use support\Log;
|
||
use Throwable;
|
||
|
||
class UsedCarCrawlSingle
|
||
{
|
||
// 默认请求头
|
||
private const DEFAULT_HEADERS = [
|
||
'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
|
||
'Accept-Language' => 'zh-CN,zh;q=0.9',
|
||
'Referer' => 'https://www.dongchedi.com/',
|
||
];
|
||
|
||
/**
|
||
* 获取网页HTML内容
|
||
*
|
||
* @param string $url
|
||
* @return string
|
||
* @throws GuzzleException
|
||
*/
|
||
public function fetchHtml(string $url): string
|
||
{
|
||
$client = new Client([
|
||
'verify' => false,
|
||
]);
|
||
$response = $client->request('GET', $url, [
|
||
'headers' => self::DEFAULT_HEADERS,
|
||
'timeout' => 10,
|
||
]);
|
||
return (string)$response->getBody();
|
||
}
|
||
|
||
/**
|
||
* 获取懂车帝移动端分享短链最终url
|
||
*
|
||
* @param string $url
|
||
* @return string
|
||
* @throws GuzzleException
|
||
*/
|
||
public function getFinaUrl(string $url): string
|
||
{
|
||
$client = new Client([
|
||
'verify' => false,
|
||
]);
|
||
$response = $client->get($url, [
|
||
'allow_redirects' => ['track_redirects' => true],
|
||
]);
|
||
|
||
$history = $response->getHeader('X-Guzzle-Redirect-History');
|
||
$finalUrl = end($history);
|
||
|
||
$pcUrl = $this->getPcUrl($finalUrl);
|
||
|
||
return $pcUrl;
|
||
}
|
||
|
||
/**
|
||
* 从移动端url获取sku_id
|
||
* @param string $url
|
||
* @return string|null
|
||
*/
|
||
public function getPcUrl(string $url): ?string
|
||
{
|
||
$query = parse_url($url, PHP_URL_QUERY);
|
||
if (!$query) {
|
||
return null;
|
||
}
|
||
|
||
parse_str($query, $params);
|
||
|
||
return !empty($params['sku_id']) ? 'https://www.dongchedi.com/usedcar/'.$params['sku_id'] : null;
|
||
}
|
||
|
||
/**
|
||
* 抓取懂车帝二手车信息
|
||
* @param string $url
|
||
* @return array
|
||
* @throws GuzzleException
|
||
*/
|
||
public function crawlCar(string $url){
|
||
$html = $this->fetchHtml($url);
|
||
if ($html === '' || str_contains($html, '404 Not Found')) {
|
||
throw new BusinessException("页面内容为空: {$url}");
|
||
}
|
||
|
||
$info = $this->parseUsedCarDetail($html, $url);
|
||
|
||
// $insertId = $this->saveUsedCarBasicInfo($info);
|
||
|
||
// 下载图片 + 上传 + 入库（图片失败不影响主记录）
|
||
$imagesArray = json_decode($info['images'] ?? '[]', true);
|
||
if (json_last_error() !== JSON_ERROR_NONE) {
|
||
$imagesArray = [];
|
||
}
|
||
$saveDir = public_path('uploads/usedcar/' . $info['used_car_id']);
|
||
$image = $this->uploadAndRemove($imagesArray, $saveDir);
|
||
$info['image'] = $image['image'];
|
||
$info['image_pull'] = $image['image_pull'];
|
||
|
||
// 继续派发配置页任务
|
||
// if (!empty($info['car_id_url'])) {
|
||
// $this->pushUrl($info['car_id_url'], 'config', $insertId);
|
||
// }
|
||
|
||
return $info;
|
||
}
|
||
|
||
/**
|
||
* 下载 -> 上传 -> 删除本地
|
||
*
|
||
* @param array $images 原始相册URL列表
|
||
* @param string $path 本地保存目录
|
||
*/
|
||
public function uploadAndRemove(array $images, string $path)
|
||
{
|
||
if (empty($images)) {
|
||
return false;
|
||
}
|
||
|
||
// 下载图片
|
||
$filePatch = $this->downloadImageAlbum($images, $path);
|
||
if (empty($filePatch)) {
|
||
return false;
|
||
}
|
||
|
||
$uploadService = new UploadService();
|
||
|
||
$image = [];
|
||
$image_pull = [];
|
||
foreach ($filePatch as $url => $filePath) {
|
||
if ($filePath === null) {
|
||
continue;
|
||
}
|
||
|
||
try {
|
||
// 上传云端
|
||
$param = [
|
||
'path' => $filePath,
|
||
'scene' => 'usedcar_crawl',
|
||
'category' => 'usedcar',
|
||
];
|
||
|
||
$result = $uploadService->uploadLocalFile($param);
|
||
if (empty($result['file_name'])) {
|
||
// 上传失败则跳过，但不抛异常影响主流程
|
||
continue;
|
||
}
|
||
|
||
// 保存图片信息
|
||
// UsedcarCrawlResultsImages::create([
|
||
// 'uc_id' => $id,
|
||
// 'used_car_id' => $usedCarId,
|
||
// 'original_name'=> $result['original_name'] ?? '',
|
||
// 'file_path' => $result['file_name'],
|
||
// ]);
|
||
$image[] = $result['file_name'];
|
||
$image_pull[] = $result['file_url'];
|
||
|
||
} catch (Throwable $e) {
|
||
Log::error('crawlUsedCarImage'.$e->getMessage().'|'.$e->getLine().$e->getFile());
|
||
// 单张图失败不影响其他
|
||
// 可以按需写日志
|
||
} finally {
|
||
// 删除本地文件
|
||
if (is_file($filePath)) {
|
||
@unlink($filePath);
|
||
}
|
||
}
|
||
}
|
||
|
||
// 删除目录
|
||
rmdir($path);
|
||
|
||
return ['image' => $image, 'image_pull' => $image_pull];
|
||
}
|
||
|
||
/**
|
||
* 批量下载相册
|
||
*
|
||
* @param array $urls 图片URL数组
|
||
* @param string $saveDir 保存目录
|
||
* @return array [原始URL => 保存路径或null]
|
||
*/
|
||
public function downloadImageAlbum(array $urls, string $saveDir): array
|
||
{
|
||
$result = [];
|
||
|
||
foreach ($urls as $url) {
|
||
$url = trim((string)$url);
|
||
if ($url === '') {
|
||
continue;
|
||
}
|
||
|
||
if (strpos($url, '//') === 0) {
|
||
$url = 'https:' . $url;
|
||
}
|
||
|
||
try {
|
||
$path = $this->downloadImage($url, $saveDir);
|
||
} catch (Throwable $e) {
|
||
$path = null;
|
||
}
|
||
|
||
$result[$url] = $path;
|
||
}
|
||
|
||
return $result;
|
||
}
|
||
|
||
|
||
/**
|
||
* 下载单张图片
|
||
*/
|
||
public function downloadImage(string $url, string $saveDir, ?string $filename = null, array $headers = []): ?string
|
||
{
|
||
if (!is_dir($saveDir)) {
|
||
if (!@mkdir($saveDir, 0777, true) && !is_dir($saveDir)) {
|
||
// echo "[Image] 创建目录失败：{$saveDir}\n";
|
||
return null;
|
||
}
|
||
}
|
||
|
||
if ($filename === null) {
|
||
$path = parse_url($url, PHP_URL_PATH);
|
||
$ext = pathinfo($path ?? '', PATHINFO_EXTENSION);
|
||
|
||
if ($ext === '') {
|
||
$ext = 'jpg';
|
||
}
|
||
|
||
$filename = md5($url) . '.' . $ext;
|
||
}
|
||
|
||
$savePath = rtrim($saveDir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . $filename;
|
||
|
||
$defaultHeaders = [
|
||
'User-Agent: ' . self::DEFAULT_HEADERS['User-Agent'],
|
||
'Accept: image/avif,image/webp,image/apng,image/*,*/*;q=0.8',
|
||
'Referer: ' . self::DEFAULT_HEADERS['Referer'],
|
||
];
|
||
|
||
foreach ($headers as $h) {
|
||
$defaultHeaders[] = $h;
|
||
}
|
||
|
||
$ch = curl_init($url);
|
||
curl_setopt_array($ch, [
|
||
CURLOPT_RETURNTRANSFER => true,
|
||
CURLOPT_FOLLOWLOCATION => true,
|
||
CURLOPT_CONNECTTIMEOUT => 5,
|
||
CURLOPT_TIMEOUT => 15,
|
||
CURLOPT_SSL_VERIFYPEER => false,
|
||
CURLOPT_SSL_VERIFYHOST => false,
|
||
CURLOPT_HTTPHEADER => $defaultHeaders,
|
||
]);
|
||
|
||
$data = curl_exec($ch);
|
||
$errNo = curl_errno($ch);
|
||
$code = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
|
||
curl_close($ch);
|
||
|
||
if ($errNo !== 0 || $code !== 200 || $data === false || $data === '') {
|
||
return null;
|
||
}
|
||
|
||
$bytes = @file_put_contents($savePath, $data);
|
||
if ($bytes === false) {
|
||
return null;
|
||
}
|
||
|
||
return $savePath;
|
||
}
|
||
|
||
/**
|
||
* 解析二手车详情页信息
|
||
*
|
||
* @param string $html
|
||
* @param string $url
|
||
* @return array
|
||
* @throws BusinessException
|
||
*/
|
||
public function parseUsedCarDetail(string $html = '', string $url = ''): array
|
||
{
|
||
try {
|
||
$ql = QueryList::html($html);
|
||
} catch (Throwable $e) {
|
||
throw new BusinessException('解析 HTML 失败（详情页）: ' . $e->getMessage());
|
||
}
|
||
|
||
$title = trim($ql->find('h1')->text());
|
||
$price = trim($ql->find('.head-info_price-wrap__Y4bxi > p')->text());
|
||
$pageText = $ql->find('body')->text();
|
||
$jsonText = $ql->find('#__NEXT_DATA__')->text();
|
||
|
||
if ($jsonText === '') {
|
||
throw new BusinessException('详情页未找到 __NEXT_DATA__ JSON');
|
||
}
|
||
|
||
$jsonArray = $this->decodeJson($jsonText, '详情页 __NEXT_DATA__');
|
||
|
||
// 车辆相册
|
||
$images = $jsonArray['props']['pageProps']['skuDetail']['head_images'] ?? [];
|
||
|
||
// 车辆ID / 年份
|
||
$carInfo = $jsonArray['props']['pageProps']['skuDetail']['car_info'] ?? [];
|
||
$carId = $carInfo['car_id'] ?? 0;
|
||
$year = (int)($carInfo['year'] ?? 0);
|
||
|
||
// 车辆ID URL
|
||
$carIdUrl = $carId ? ('https://www.dongchedi.com/auto/params-carIds-' . $carId) : '';
|
||
|
||
// 能源类型（两个字段择一）
|
||
$overview = $jsonArray['props']['pageProps']['skuDetail']['car_config_overview'] ?? [];
|
||
$fuelForm = $overview['power']['fuel_form'] ?? '';
|
||
$horsepower = $overview['power']['horsepower'] ?? ''; //马力
|
||
$capacity = $overview['power']['capacity'] ?? ''; //排量
|
||
$newFuelForm = $overview['new_energy_power']['fuel_form'] ?? '';
|
||
$resultFuelForm = $fuelForm === '' ? $newFuelForm : $fuelForm;
|
||
|
||
// 使用里程
|
||
$importantText = $jsonArray['props']['pageProps']['skuDetail']['important_text'] ?? '';
|
||
$importantTextArray = $importantText ? explode(' | ', $importantText) : [];
|
||
$usageMileage = '';
|
||
if (isset($importantTextArray[1])) {
|
||
$usageMileage = str_replace('万公里', '', $importantTextArray[1]);
|
||
}
|
||
|
||
// 车辆名称 品牌、车系、车型
|
||
$brandName = $carInfo['brand_name'] ?? '';
|
||
$brand_id = $carInfo['brand_id'] ?? '';
|
||
$seriesName = $carInfo['series_name'] ?? '';
|
||
$series_id = $carInfo['series_id'] ?? '';
|
||
$carName = $carInfo['car_name'] ?? '';
|
||
|
||
$bodyColor = $carInfo['body_color'] ?? ''; //颜色
|
||
|
||
// 商家信息
|
||
$shopInfo = $jsonArray['props']['pageProps']['skuDetail']['shop_info'] ?? [];
|
||
$formatShopInfo = [
|
||
'shop_id' => $shopInfo['shop_id'] ?? 0,
|
||
'shop_name' => $shopInfo['shop_short_name'] ?? '',
|
||
'shop_address' => $shopInfo['shop_address'] ?? '',
|
||
];
|
||
|
||
// 简介参数
|
||
$otherParams = $jsonArray['props']['pageProps']['skuDetail']['other_params'] ?? [];
|
||
$displacement = $this->getParamValue($otherParams, '排量');
|
||
$gearbox = $this->getParamValue($otherParams, '变速箱');
|
||
$sourcePlace = $this->getParamValue($otherParams, '车源地');
|
||
$plateTime = $this->getParamValue($otherParams, '上牌时间');
|
||
|
||
$formatCarInfo = [
|
||
'displacement' => $displacement,
|
||
'gearbox' => $gearbox,
|
||
];
|
||
|
||
// 提取新车指导价 / 比新车省金额
|
||
$newPrice = $this->extractPatternValue($pageText, '/新车指导价[:：]\s*([^\r\n万]*万)/u');
|
||
$priceDifference = $this->extractPatternValue($pageText, '/比新车省[:：]\s*([^\r\n万]*万)/u');
|
||
|
||
// 提取车况介绍
|
||
$conditionDesc = '';
|
||
if ($pageText && preg_match('/车况介绍\s*(.*?)\s*推荐理由/su', $pageText, $m)) {
|
||
$conditionDesc = trim($m[1]);
|
||
}
|
||
|
||
|
||
return [
|
||
'used_car_id' => $this->extractIdFromUrl($url),
|
||
'car_id' => $carId,
|
||
'url' => $url,
|
||
'title' => $title,
|
||
'price' => str_replace('万', '', $this->decodePrice($price)),
|
||
'new_price' => str_replace('万', '', $newPrice),
|
||
'price_difference' => str_replace('万', '', $priceDifference),
|
||
'condition_desc' => $conditionDesc,
|
||
'images' => json_encode($images, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
|
||
'car_id_url' => $carIdUrl,
|
||
'used_detail' => $jsonText,
|
||
'format_shop_info' => json_encode($formatShopInfo, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
|
||
'fuel_form' => $resultFuelForm,
|
||
'usage_mileage' => $usageMileage,
|
||
'brand_name' => $brandName,
|
||
'series_name' => $seriesName,
|
||
'car_name' => $carName,
|
||
'year' => $year,
|
||
'format_car_info' => json_encode($formatCarInfo, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
|
||
'body_color' => $bodyColor,
|
||
'horsepower' => $horsepower,
|
||
'capacity' => $capacity,
|
||
'source_place' => $sourcePlace,
|
||
'brand_id' => $brand_id,
|
||
'series_id' => $series_id,
|
||
'plate_time' => $plateTime,
|
||
];
|
||
}
|
||
|
||
/**
|
||
* 解码懂车帝价格
|
||
*/
|
||
protected function decodePrice(string $str): string
|
||
{
|
||
$map = [
|
||
"\u{E53D}" => '1',
|
||
"\u{E3F0}" => '2',
|
||
"\u{E422}" => '3',
|
||
"\u{E42C}" => '4',
|
||
"\u{E49C}" => '5',
|
||
"\u{E42B}" => '6',
|
||
"\u{E4FE}" => '7',
|
||
"\u{E548}" => '8',
|
||
"\u{E4C8}" => '9',
|
||
"\u{E453}" => '0',
|
||
"\u{E45F}" => '万',
|
||
];
|
||
|
||
return strtr($str, $map);
|
||
}
|
||
|
||
/**
|
||
* 从URL中提取ID
|
||
*/
|
||
protected function extractIdFromUrl(string $url)
|
||
{
|
||
if (preg_match('/\/(\d+)$/', $url, $matches)) {
|
||
return (int)$matches[1];
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/**
|
||
* 提取符合正则表达式的值（只保留数字和小数点）
|
||
*/
|
||
protected function extractPatternValue(string $text, string $pattern): string
|
||
{
|
||
$value = '';
|
||
if ($text && preg_match($pattern, $text, $m)) {
|
||
$value = trim(preg_replace('/[^0-9.]/', '', $m[1]));
|
||
}
|
||
return $value;
|
||
}
|
||
|
||
/**
|
||
* 从参数列表中获取指定名称的值
|
||
*/
|
||
public function getParamValue(array $params, string $name): ?string
|
||
{
|
||
foreach ($params as $item) {
|
||
if (($item['name'] ?? null) === $name) {
|
||
return $item['value'] ?? null;
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* 安全解 JSON
|
||
*
|
||
* @param string $json
|
||
* @param string $context
|
||
* @return array
|
||
* @throws BusinessException
|
||
*/
|
||
protected function decodeJson(string $json, string $context = 'JSON'): array
|
||
{
|
||
$data = json_decode($json, true);
|
||
if (json_last_error() !== JSON_ERROR_NONE || !is_array($data)) {
|
||
throw new BusinessException($context . ' 解析失败：' . json_last_error_msg());
|
||
}
|
||
return $data;
|
||
}
|
||
} |