= 1))){ $arr_domains[$main_domain] = array($main_domain); }else{ $arr_domains[$main_domain][] = $row; } } } return $arr_domains; } /** * 从hosts或dnsmasq类文件中提取地址 * * @param String $str_hosts 原始的hosts字符串 * @param Boolean $strict_mode 严格模式,启用时将屏蔽该域所在的主域名,例如www.baidu.com,将获取到baidu.com并写入最终列表 * @param Array $arr_whitelist 白名单 * @return array */ public static function get_domain_list($str_hosts, $strict_mode = false, $arr_whitelist = array()){ $strlen = strlen($str_hosts); if($strlen < 3){ return array(); } $str_hosts = $str_hosts . "\n"; //防止最后一行没有换行符 $i = 0; $arr_domains = array(); while($i < $strlen){ $end_pos = strpos($str_hosts, "\n", $i); $line = trim(substr($str_hosts, $i, $end_pos - $i)); $i = $end_pos + 1; if(empty($line) || ($line[0] == '#')){//注释行忽略 continue; } $line = strtolower(preg_replace('/[\s\t]+/', "/", $line)); if((strpos($line, '127.0.0.1') === false) && (strpos($line, '::') === false) && (strpos($line, '0.0.0.0') === false)){ continue; } $row = explode('/', $line); if(strpos($row[1], '.') === false){ continue; } $main_domain = self::extract_main_domain($row[1]); if($strict_mode && (!array_key_exists($main_domain, $arr_whitelist) || ($arr_whitelist[$main_domain] >= 1))){ $arr_domains[$main_domain] = array($main_domain); }else{ $arr_domains[$main_domain][] = $row[1]; } } return $arr_domains; } private static function write_conf_header($fp, $header, $arr_params = array()){ $header = str_replace('{DATE}', date('YmdHis'), $header); $header = str_replace('{URL}', self::LINK_URL, $header); foreach($arr_params as $keyword => $val){ $header = str_replace('{' . $keyword . '}', $val, $header); } return fwrite($fp, $header); } /** * 写入结果到最终文件 * * @param array $arr_src * @param $arr_format * @param array $arr_whitelist * @return false|int */ public static function write_to_file(array $arr_src, array $arr_format, array $arr_whitelist = array()){ if(count($arr_src) < 1){ return false; } foreach($arr_whitelist as $wlk => $wlv){ if(-1 === $wlv){ unset($arr_whitelist[$wlk]); } } $str_result = ''; $line_count = 0; $arr_written = []; foreach($arr_src as $main_domain => $arr_subdomains){ if(array_key_exists($main_domain, $arr_whitelist) && ($arr_whitelist[$main_domain] > 0)){ continue; } if(empty($main_domain)){//不匹配记录(一般是不合法域名或者未收录的后缀) continue; } if( (1 !== $arr_format['full_domain']) && (!array_key_exists($main_domain, $arr_whitelist)) && (in_array($main_domain, $arr_subdomains) || in_array('www.' . $main_domain, $arr_subdomains) || in_array('.' . $main_domain, $arr_subdomains) ) ){ $str_result .= str_replace('{DOMAIN}', $main_domain, $arr_format['format']) . "\n"; $line_count ++; continue; } $arr_subdomains = array_fill_keys($arr_subdomains, 2); foreach($arr_subdomains as $subdomain => $__){ if(array_key_exists($subdomain, $arr_whitelist)){ continue; } $arr_tmp_domain = explode('.', $subdomain); $tmp_domain_len = count($arr_tmp_domain); if($tmp_domain_len < 3){ $str_result .= str_replace('{DOMAIN}', $subdomain, $arr_format['format']) . "\n"; $line_count ++; $arr_written[$subdomain] = 2; continue; } $matched_flag = false; for($pos = 3; $pos <= $tmp_domain_len; $pos ++){ $arr_tmp = array_slice($arr_tmp_domain, -1 * $pos); $tmp = implode('.', $arr_tmp); if(array_key_exists($tmp, $arr_whitelist)){ $matched_flag = $arr_whitelist[$tmp] === 1; break; } if(($tmp === $subdomain) || array_key_exists($tmp, $arr_subdomains)){ if(!array_key_exists($tmp, $arr_written)){ $str_result .= str_replace('{DOMAIN}', $tmp, $arr_format['format']) . "\n"; $line_count ++; $arr_written[$tmp] = 2; } $matched_flag = 1 !== $arr_format['full_domain']; break; } } if($matched_flag){ continue; } if(!array_key_exists($subdomain, $arr_written)){ $str_result .= str_replace('{DOMAIN}', $subdomain, $arr_format['format']) . "\n"; $line_count ++; $arr_written[$subdomain] = 3; } } } unset($arr_written); $fp = fopen(ROOT_DIR . $arr_format['filename'], 'w'); $write_len = self::write_conf_header($fp, $arr_format['header'], array('COUNT' => $line_count)); $write_len += fwrite($fp, $str_result); return $write_len; } }