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<?php |
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namespace PiedWeb\SeoPocketCrawler; |
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use PiedWeb\UrlHarvester\Harvest; |
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class Recorder |
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{ |
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const LINKS_DIR = '/links'; |
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const CACHE_DIR = '/cache'; |
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const CACHE_NONE = 0; |
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const CACHE_ID = 2; |
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const CACHE_URI = 1; |
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protected $folder; |
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protected $cacheMethod; |
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public function __construct($folder, $cacheMethod = self::CACHE_ID) |
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{ |
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$this->folder = $folder; |
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$this->cacheMethod = $cacheMethod; |
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if (!file_exists($folder)) { |
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mkdir($folder); |
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mkdir($folder.Recorder::LINKS_DIR); |
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mkdir($folder.Recorder::CACHE_DIR); |
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$this->initLinksIndex(); |
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} |
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} |
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public function cache(Harvest $harvest, Url $url) |
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{ |
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if (Recorder::CACHE_NONE === $this->cacheMethod || !$this->mustWeCache($harvest)) { |
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return; |
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} |
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$filePath = $this->getCacheFilePath($url); |
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if (!file_exists($filePath)) { |
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file_put_contents( |
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$filePath, |
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$harvest->getResponse()->getHeaders(false).PHP_EOL.PHP_EOL.$harvest->getResponse()->getContent() |
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); |
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return file_put_contents($filePath.'---info', json_encode($harvest->getResponse()->getInfo())); |
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} |
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} |
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public function getCacheFilePath(Url $url) |
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{ |
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if (Recorder::CACHE_URI === $this->cacheMethod) { |
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return $this->getCacheFilePathWithUrlAsFilename($url); |
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} else { |
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return $this->getCacheFilePathWithIdAsFilename($url); |
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} |
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} |
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protected function getCacheFilePathWithUrlAsFilename(Url $url) |
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{ |
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$url = trim($url->uri, '/').'/'; |
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$urlPart = explode('/', $url); |
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$folder = $this->folder.Recorder::CACHE_DIR; |
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$urlPartLenght = count($urlPart); |
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for ($i = 0; $i < $urlPartLenght; ++$i) { |
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if ($i == $urlPartLenght - 1) { |
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return $folder.'/'.(empty($urlPart[$i]) ? 'index.html' : $urlPart[$i]); |
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} else { |
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$folder .= '/'.$urlPart[$i]; |
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if (!file_exists($folder) || !is_dir($folder)) { |
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mkdir($folder); |
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} |
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} |
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} |
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} |
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protected function getCacheFilePathWithIdAsFilename(Url $url) |
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{ |
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return $this->folder.Recorder::CACHE_DIR.'/'.(string) $url->id; |
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} |
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protected function mustWeCache(Harvest $harvest) |
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{ |
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return false !== strpos($harvest->getResponse()->getContentType(), 'text/html'); |
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} |
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public function record(array $urls) |
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{ |
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$dataCsv = fopen($this->folder.'/data.csv', 'w'); |
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$indexCsv = fopen($this->folder.'/index.csv', 'w'); |
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if (false !== $dataCsv) { |
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$header = array_keys(get_object_vars(array_values($urls)[0])); |
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fputcsv($dataCsv, $header); |
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fputcsv($indexCsv, ['id', 'uri']); |
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foreach ($urls as $url) { |
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fputcsv($dataCsv, get_object_vars($url)); |
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fputcsv($indexCsv, [$url->id, $url->uri]); |
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} |
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fclose($dataCsv); |
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return true; |
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} |
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return false; |
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} |
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public function recordInboundLink(Url $from, Url $to, int $type) |
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{ |
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file_put_contents( |
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$this->folder.Recorder::LINKS_DIR.'/To_'.(string) $to->id.'_'.$type, |
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$from->uri.PHP_EOL, |
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FILE_APPEND |
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); |
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} |
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public function recordOutboundLink(Url $from, array $links) |
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{ |
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$links = array_map(function ($link) { |
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return $link->getUrl(); |
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}, $links); |
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file_put_contents($this->folder.Recorder::LINKS_DIR.'/From_'.(string) $from->id, implode(PHP_EOL, $links)); |
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} |
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protected function initLinksIndex() |
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{ |
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if (!file_exists($this->folder.Recorder::LINKS_DIR.'/Index.csv')) { |
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file_put_contents($this->folder.Recorder::LINKS_DIR.'/Index.csv', 'From,To'.PHP_EOL); |
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} |
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} |
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public static function removeBase(string $base, string $url) |
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{ |
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return (0 === strpos($url, $base)) ? $newstring = substr_replace($url, '', 0, strlen($base)) : null; |
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} |
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public function recordLinksIndex(string $base, Url $from, $urls, array $links) |
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{ |
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$everAdded = []; |
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$content = ''; |
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foreach ($links as $link) { |
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$content .= $from->getId(); |
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if (in_array($link->getUrl(), $everAdded)) { // like Google, we sould not add duplicate link, |
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// so we say the juice is lost -1 |
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$content .= ',-1'.PHP_EOL; |
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} else { |
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$everAdded[] = $link->getUrl(); |
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$relative = self::removeBase($base, $link->getPageUrl()); |
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$content .= ','.(isset($urls[$relative]) ? $urls[$relative]->getId() : 0).PHP_EOL; // 0 = external |
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} |
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} |
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file_put_contents($this->folder.Recorder::LINKS_DIR.'/Index.csv', $content, FILE_APPEND); |
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} |
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} |
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PiedWeb /
SeoPocketCrawler
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