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<?php |
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namespace GJClasses; |
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class HttpHeader |
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{ |
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public function process($domain) |
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{ |
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$headers = $this->retrieve($domain); |
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list($status, $data, $final_destination, $final_destination_apex) = $this->processRules($domain, $headers); |
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return array($status, $data, $final_destination, $final_destination_apex); |
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} |
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public function retrieve($domain) |
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{ |
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stream_context_set_default( |
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array( |
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'http' => array( |
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'timeout' => 8, |
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'method' => "GET", |
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'header' => "Accept-language: en\r\n" . |
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"Cookie: LANGUAGE=en;DEFLANG=en;" |
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) |
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) |
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); |
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return @get_headers('http://' . $domain); |
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} |
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public function processRules($domain, $headers) |
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{ |
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if ($headers['0'] == 'HTTP/1.0 200 OK' || $headers['0'] == 'HTTP/1.1 200 OK') { |
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$final_header_status = 'Live Site (200)'; |
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$header_data = 'n/a'; |
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$final_destination = 'http://' . $domain; |
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$final_destination_apex = $domain; |
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} elseif ($headers['0'] == 'HTTP/1.0 301 Moved Permanently' || $headers['0'] == 'HTTP/1.1 301 Moved Permanently') { |
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list($header_data, $final_destination, $final_destination_apex, $count) = $this->createData($domain, $headers); |
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if ($count === 1) { |
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$header_status = 'Redirect, Permanent (301)'; |
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} elseif ($count > 1) { |
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$header_status = 'Redirect, Permanent (301) [Multiple Redirects]'; |
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} |
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$final_header_status = $this->checkSameRedirects($domain, $header_status, $header_data); |
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} elseif ($headers['0'] == 'HTTP/1.0 302 Found' || $headers['0'] == 'HTTP/1.1 302 Found' || $headers['0'] == 'HTTP/1.1 302 Moved Temporarily') { |
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list($header_data, $final_destination, $final_destination_apex, $count) = $this->createData($domain, $headers); |
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if ($count === 1) { |
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$header_status = 'Redirect, Temporary (302)'; |
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} elseif ($count > 1) { |
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$header_status = 'Redirect, Temporary (302) [Multiple Redirects]'; |
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} |
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$final_header_status = $this->checkSameRedirects($domain, $header_status, $header_data); |
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} elseif ($headers['0'] == 'HTTP/1.0 400 Bad Request') { |
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$final_header_status = 'Bad Request (400)'; |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} elseif ($headers['0'] == 'HTTP/1.1 403 Forbidden') { |
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$final_header_status = 'Forbidden (403)'; |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} elseif ($headers['0'] == 'HTTP/1.0 404 Not Found' || $headers['0'] == 'HTTP/1.1 404 Not Found') { |
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$final_header_status = 'Not Found (404)'; |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} elseif ($headers['0'] == 'HTTP/1.1 463' || $headers['0'] == 'HTTP/1.1 463 ') { |
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$final_header_status = 'Unspecified Error (463)'; |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} elseif ($headers['0'] == 'HTTP/1.0 500 Internal Server Error' || $headers['0'] == 'HTTP/1.1 500 Internal Server Error') { |
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$final_header_status = 'Internal Server Error (500)'; |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} elseif ($headers['0'] == 'HTTP/1.0 503 Service Unavailable' || $headers['0'] == 'HTTP/1.1 503 Service Unavailable' || $headers['0'] == 'HTTP/1.1 503 Service Temporarily Unavailable') { |
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$final_header_status = 'Service Temporarily Unavailable (503)'; |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} else { |
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if (!$headers['0'] || $headers['0'] == '') { |
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$final_header_status = 'Error Retrieving Headers'; |
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} else { |
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$final_header_status = $headers['0']; |
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} |
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$header_data = 'n/a'; |
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$final_destination = 'n/a'; |
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$final_destination_apex = 'n/a'; |
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} |
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return array($final_header_status, $header_data, $final_destination, $final_destination_apex); |
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} |
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public function createData($domain, $headers) |
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{ |
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$count = 0; |
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$header_data = 'http://' . $domain . ' -> '; |
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foreach ($headers as $value) { |
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if (preg_match("/^Location:/", $value)) { |
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$no_slash = rtrim($value, '/'); |
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$header_data .= substr($no_slash, 10) . " -> "; |
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$count++; |
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} |
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} |
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$header_data = substr($header_data, 0, -4); |
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$final_destination = substr($no_slash, 10); |
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$final_destination_apex = $this->getDomainApex($final_destination); |
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return array($header_data, $final_destination, $final_destination_apex, $count); |
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} |
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public function getDomainApex($domain) |
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{ |
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return ltrim(parse_url($domain, PHP_URL_HOST), 'www.'); |
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} |
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public function checkSameRedirects($domain, $http_header_status, $http_header_data) |
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{ |
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// check to see if the redirect chain is all for the same domain, and if so update it to 'Live Site (200)' |
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$final_http_header_status = $http_header_status; |
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if ($http_header_status === 'Redirect, Permanent (301)' || $http_header_status === |
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'Redirect, Permanent (301) [Multiple Redirects]' || $http_header_status === 'Redirect, Temporary (302)' || |
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$http_header_status === 'Redirect, Temporary (302) [Multiple Redirects]') { |
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$header_data_array = explode(" -> ", $http_header_data); |
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// standard port |
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$url_variations = array(); |
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$url_variations[0] = 'http://' . $domain; // insecure, no-www |
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$url_variations[1] = 'http://www.' . $domain; // insecure, www |
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$url_variations[2] = 'https://' . $domain; // secure, no-www |
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$url_variations[3] = 'https://www.' . $domain; // secure, www |
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// port 443 |
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$url_variations[4] = 'http://' . $domain . ':443'; // insecure, no-www |
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$url_variations[5] = 'http://www.' . $domain . ':443'; // insecure, www |
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$url_variations[6] = 'https://' . $domain . ':443'; // secure, no-www |
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$url_variations[7] = 'https://www.' . $domain . ':443'; // secure, www |
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$all_same_domain = !array_diff($header_data_array, $url_variations); |
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if ($all_same_domain === true) { |
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$final_http_header_status = 'Live Site (200) [With Redirects]'; |
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} |
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} |
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return $final_http_header_status; |
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} |
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} |
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chetcuti /
gjclasses
