correção do uso de headers dos useragents

This commit is contained in:
Renan Bernordi 2024-11-26 13:46:09 -03:00
parent 97a7bb36de
commit 10a8aa43ec

View file

@ -1,4 +1,5 @@
<?php
/**
* Classe responsável pela análise e processamento de URLs
*
@ -13,7 +14,8 @@
require_once 'Rules.php';
require_once 'Cache.php';
class URLAnalyzer {
class URLAnalyzer
{
/**
* @var array Lista de User Agents disponíveis para requisições
*/
@ -43,7 +45,8 @@ class URLAnalyzer {
* Construtor da classe
* Inicializa as dependências necessárias
*/
public function __construct() {
public function __construct()
{
$this->userAgents = USER_AGENTS;
$this->maxAttempts = MAX_ATTEMPTS;
$this->dnsServers = explode(',', DNS_SERVERS);
@ -57,7 +60,8 @@ class URLAnalyzer {
* @param string $url URL que gerou o erro
* @param string $error Mensagem de erro
*/
private function logError($url, $error) {
private function logError($url, $error)
{
$timestamp = date('Y-m-d H:i:s');
$logEntry = "[{$timestamp}] URL: {$url} - Error: {$error}" . PHP_EOL;
file_put_contents(__DIR__ . '/../logs/error.log', $logEntry, FILE_APPEND);
@ -70,45 +74,47 @@ class URLAnalyzer {
* @return string Conteúdo processado da URL
* @throws Exception Em caso de erros durante o processamento
*/
public function analyze($url) {
public function analyze($url)
{
try {
$cleanUrl = $this->cleanUrl($url);
if ($this->cache->exists($cleanUrl)) {
return $this->cache->get($cleanUrl);
}
$parsedUrl = parse_url($cleanUrl);
$domain = $parsedUrl['host'];
// Verificação de domínios bloqueados
foreach (BLOCKED_DOMAINS as $blockedDomain) {
if (strpos($domain, $blockedDomain) !== false) {
// Verifica apenas correspondência exata do domínio
if ($domain === $blockedDomain) {
$error = 'Este domínio está bloqueado para extração.';
$this->logError($cleanUrl, $error);
throw new Exception($error);
}
}
$resolvedIp = $this->resolveDns($cleanUrl);
if (!$resolvedIp) {
$error = 'Falha ao resolver DNS para o domínio';
$this->logError($cleanUrl, $error);
throw new Exception($error);
}
$content = $this->fetchWithMultipleAttempts($cleanUrl, $resolvedIp);
if (empty($content)) {
$error = 'Não foi possível obter o conteúdo. Tente usar serviços de arquivo.';
$this->logError($cleanUrl, $error);
throw new Exception($error);
}
$content = $this->processContent($content, $domain, $cleanUrl);
$this->cache->set($cleanUrl, $content);
return $content;
} catch (Exception $e) {
$this->logError($url, $e->getMessage());
@ -124,13 +130,20 @@ class URLAnalyzer {
* @return string Conteúdo obtido
* @throws Exception Se todas as tentativas falharem
*/
private function fetchWithMultipleAttempts($url, $resolvedIp) {
private function fetchWithMultipleAttempts($url, $resolvedIp)
{
$attempts = 0;
$errors = [];
// Array com as chaves dos user agents para rotação
$userAgentKeys = array_keys($this->userAgents);
$totalUserAgents = count($userAgentKeys);
while ($attempts < $this->maxAttempts) {
try {
$content = $this->fetchWithCurl($url, $resolvedIp, $attempts);
try {
// Seleciona um user agent de forma rotativa
$currentUserAgentKey = $userAgentKeys[$attempts % $totalUserAgents];
$content = $this->fetchWithCurl($url, $resolvedIp, $currentUserAgentKey);
if (!empty($content)) {
return $content;
}
@ -150,20 +163,20 @@ class URLAnalyzer {
*
* @param string $url URL para requisição
* @param string $resolvedIp IP resolvido do domínio
* @param int $attempts Número da tentativa atual
* @param string $userAgentKey Chave do user agent a ser utilizado
* @return string Conteúdo obtido
* @throws Exception Em caso de erro na requisição
*/
private function fetchWithCurl($url, $resolvedIp, $attempts) {
private function fetchWithCurl($url, $resolvedIp, $userAgentKey)
{
$parsedUrl = parse_url($url);
$host = $parsedUrl['host'];
$domainRules = $this->getDomainRules(parse_url($url, PHP_URL_HOST));
$userAgent = $this->userAgents[$attempts % count($this->userAgents)];
if (isset($domainRules['userAgent'])) {
$userAgent = $domainRules['userAgent'];
}
// Obtém a configuração do user agent
$userAgentConfig = $this->userAgents[$userAgentKey];
$userAgent = $userAgentConfig['user_agent'];
$curlOptions = [
CURLOPT_URL => $url,
@ -178,26 +191,33 @@ class URLAnalyzer {
CURLOPT_DNS_SERVERS => implode(',', $this->dnsServers)
];
if (!isset($domainRules['headers'])) {
$headers = [
'Host: ' . $host,
'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language: pt-BR,pt;q=0.9,en-US;q=0.8,en;q=0.7',
'Cache-Control: no-cache',
'Pragma: no-cache'
];
// Prepara os headers
$headers = [
'Host: ' . $host,
'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language: pt-BR,pt;q=0.9,en-US;q=0.8,en;q=0.7',
'Cache-Control: no-cache',
'Pragma: no-cache'
];
if ($domainRules !== null && isset($domainRules['customHeaders'])) {
foreach ($domainRules['customHeaders'] as $headerName => $headerValue) {
$headers[] = $headerName . ': ' . $headerValue;
}
// Adiciona os headers específicos do user agent
if (isset($userAgentConfig['headers'])) {
foreach ($userAgentConfig['headers'] as $headerName => $headerValue) {
$headers[] = $headerName . ': ' . $headerValue;
}
$curlOptions[CURLOPT_HTTPHEADER] = $headers;
$curlOptions[CURLOPT_COOKIESESSION] = true;
$curlOptions[CURLOPT_FRESH_CONNECT] = true;
}
// Adiciona headers específicos do domínio se existirem
if ($domainRules !== null && isset($domainRules['customHeaders'])) {
foreach ($domainRules['customHeaders'] as $headerName => $headerValue) {
$headers[] = $headerName . ': ' . $headerValue;
}
}
$curlOptions[CURLOPT_HTTPHEADER] = $headers;
$curlOptions[CURLOPT_COOKIESESSION] = true;
$curlOptions[CURLOPT_FRESH_CONNECT] = true;
if ($domainRules !== null && isset($domainRules['cookies'])) {
$cookies = [];
foreach ($domainRules['cookies'] as $name => $value) {
@ -216,7 +236,7 @@ class URLAnalyzer {
$content = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$error = curl_error($ch);
curl_close($ch);
if ($error) {
@ -226,7 +246,7 @@ class URLAnalyzer {
if ($httpCode >= 400) {
throw new Exception("Erro HTTP: " . $httpCode);
}
return $content;
}
@ -236,39 +256,40 @@ class URLAnalyzer {
* @param string $url URL para limpar
* @return string URL limpa e normalizada
*/
private function cleanUrl($url) {
private function cleanUrl($url)
{
$url = strtolower($url);
$url = trim($url);
// Detecta e converte URLs AMP
if (preg_match('#https://([^.]+)\.cdn\.ampproject\.org/v/s/([^/]+)(.*)#', $url, $matches)) {
$url = 'https://' . $matches[2] . $matches[3];
}
$parsedUrl = parse_url($url);
if (!isset($parsedUrl['scheme'])) {
$url = 'https://' . $url;
$parsedUrl = parse_url($url);
}
$cleanUrl = $parsedUrl['scheme'] . '://' . $parsedUrl['host'];
if (isset($parsedUrl['path'])) {
$path = preg_replace('#/+#', '/', $parsedUrl['path']);
$cleanUrl .= $path;
}
if (isset($parsedUrl['query'])) {
parse_str($parsedUrl['query'], $params);
$params = $this->filterUrlParams($params);
if (!empty($params)) {
ksort($params);
$cleanUrl .= '?' . http_build_query($params);
}
}
return rtrim($cleanUrl, '/');
}
@ -278,31 +299,32 @@ class URLAnalyzer {
* @param array $params Parâmetros da URL
* @return array Parâmetros filtrados
*/
private function filterUrlParams($params) {
private function filterUrlParams($params)
{
$filteredParams = [];
foreach ($params as $key => $value) {
if (empty($value) && $value !== '0') {
continue;
}
if ($this->isTrackingParam($key)) {
continue;
}
if ($this->isSessionParam($key)) {
continue;
}
if ($this->isCacheParam($key)) {
continue;
}
if ($this->isContentParam($key)) {
$filteredParams[$key] = $value;
}
}
return $filteredParams;
}
@ -312,7 +334,8 @@ class URLAnalyzer {
* @param string $param Nome do parâmetro
* @return bool True se for parâmetro de tracking
*/
private function isTrackingParam($param) {
private function isTrackingParam($param)
{
$trackingPatterns = [
// Google Analytics e AMP
'/^utm_/', // Universal Analytics
@ -329,25 +352,25 @@ class URLAnalyzer {
'/^amp_js_v$/', // AMP JavaScript version
'/^amp_r$/', // AMP referrer
'/^aoh$/', // AMP origin header
// Social Media
'/^fbclid$/', // Facebook Click ID
'/^msclkid$/', // Microsoft Click ID
'/^igshid$/', // Instagram
'/^yclid$/', // Yandex Click ID
// Email Marketing
'/^mc_/', // Mailchimp
'/^_hs/', // HubSpot
'/^_hsenc$/', // HubSpot encoded
'/^_hsmi$/', // HubSpot message ID
'/^mkt_tok$/', // Marketo
// Analytics e Tracking
'/^pk_/', // Piwik/Matomo
'/^n_/', // Navegg
'/^_openstat$/', // OpenStat
// Outros
'/^ref$/', // Referrer
'/^source$/', // Source tracking
@ -356,13 +379,13 @@ class URLAnalyzer {
'/^affiliate$/', // Affiliate tracking
'/^partner$/', // Partner tracking
];
foreach ($trackingPatterns as $pattern) {
if (preg_match($pattern, $param)) {
return true;
}
}
return false;
}
@ -372,7 +395,8 @@ class URLAnalyzer {
* @param string $param Nome do parâmetro
* @return bool True se for parâmetro de sessão
*/
private function isSessionParam($param) {
private function isSessionParam($param)
{
$sessionPatterns = [
'/sess(ion)?[_-]?id/i',
'/^sid$/',
@ -388,13 +412,13 @@ class URLAnalyzer {
'/^auth[_-]?token$/',
'/^access[_-]?token$/',
];
foreach ($sessionPatterns as $pattern) {
if (preg_match($pattern, $param)) {
return true;
}
}
return false;
}
@ -404,7 +428,8 @@ class URLAnalyzer {
* @param string $param Nome do parâmetro
* @return bool True se for parâmetro de cache
*/
private function isCacheParam($param) {
private function isCacheParam($param)
{
$cachePatterns = [
'/^v$/',
'/^ver$/',
@ -419,13 +444,13 @@ class URLAnalyzer {
'/^[0-9]+$/',
'/^_=[0-9]+$/',
];
foreach ($cachePatterns as $pattern) {
if (preg_match($pattern, $param)) {
return true;
}
}
return false;
}
@ -435,7 +460,8 @@ class URLAnalyzer {
* @param string $param Nome do parâmetro
* @return bool True se for parâmetro de conteúdo
*/
private function isContentParam($param) {
private function isContentParam($param)
{
$contentPatterns = [
'/^id$/',
'/^page$/',
@ -464,17 +490,17 @@ class URLAnalyzer {
'/^topic$/',
'/^section$/',
];
foreach ($contentPatterns as $pattern) {
if (preg_match($pattern, $param)) {
return true;
}
}
if (preg_match('/^[a-z0-9]{4,}$/i', $param)) {
return true;
}
return false;
}
@ -484,10 +510,11 @@ class URLAnalyzer {
* @param string $url URL para resolver DNS
* @return string|false IP resolvido ou false em caso de falha
*/
private function resolveDns($url) {
private function resolveDns($url)
{
$parsedUrl = parse_url($url);
$domain = $parsedUrl['host'];
foreach ($this->dnsServers as $dnsServer) {
$dnsQuery = [
'name' => $domain,
@ -533,7 +560,8 @@ class URLAnalyzer {
* @param string $domain Domínio para buscar regras
* @return array|null Regras do domínio ou null se não encontrar
*/
private function getDomainRules($domain) {
private function getDomainRules($domain)
{
return $this->rules->getDomainRules($domain);
}
@ -543,16 +571,17 @@ class URLAnalyzer {
* @param DOMElement $element Elemento DOM
* @param array $classesToRemove Classes a serem removidas
*/
private function removeClassNames($element, $classesToRemove) {
private function removeClassNames($element, $classesToRemove)
{
if (!$element->hasAttribute('class')) {
return;
}
$classes = explode(' ', $element->getAttribute('class'));
$newClasses = array_filter($classes, function($class) use ($classesToRemove) {
$newClasses = array_filter($classes, function ($class) use ($classesToRemove) {
return !in_array(trim($class), $classesToRemove);
});
if (empty($newClasses)) {
$element->removeAttribute('class');
} else {
@ -567,7 +596,8 @@ class URLAnalyzer {
* @param DOMXPath $xpath Objeto XPath
* @param string $baseUrl URL base para correção
*/
private function fixRelativeUrls($dom, $xpath, $baseUrl) {
private function fixRelativeUrls($dom, $xpath, $baseUrl)
{
$parsedBase = parse_url($baseUrl);
$baseHost = $parsedBase['scheme'] . '://' . $parsedBase['host'];
@ -606,15 +636,16 @@ class URLAnalyzer {
* @param string $url URL completa
* @return string Conteúdo processado
*/
private function processContent($content, $domain, $url) {
private function processContent($content, $domain, $url)
{
$dom = new DOMDocument();
$dom->preserveWhiteSpace = true;
libxml_use_internal_errors(true);
@$dom->loadHTML(mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8'), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
libxml_clear_errors();
$xpath = new DOMXPath($dom);
$domainRules = $this->getDomainRules($domain);
if ($domainRules !== null) {
if (isset($domainRules['fixRelativeUrls']) && $domainRules['fixRelativeUrls'] === true) {