feat: description of special IPv4

3 years ago · 59423165bd
3 changed files with 162 additions and 37 deletions
--- a/backend/getInfo.php
+++ b/backend/getInfo.php
@ -5,10 +5,12 @@ include("qqwry.php");
 include("ipinfo.php");
 include("ipip.php");
 include("cityCN.php");
+include("specialIP.php");

 function getIPInfo($ip) {
+    // TODO: format ipv6
    $specialInfo = checkSpecial($ip); // 检查是否为特殊IP段
-    if (isset($specialInfo)) {
+    if ($specialInfo !== null) {
        $info['ip'] = $ip;
        $info['as'] = null;
        $info['city'] = null;
@ -16,9 +18,9 @@ function getIPInfo($ip) {
        $info['country'] = null;
        $info['timezone'] = null;
        $info['loc'] = null;
-        $info['isp'] = $specialInfo['en'];
-        $info['scope'] = null;
-        $info['detail'] = $specialInfo['cn'];
+        $info['isp'] = $specialInfo['descEn'];
+        $info['scope'] = $specialInfo['scope'];
+        $info['detail'] = $specialInfo['descCn'];
    } else {
        $IPIP = new IPDB('ipipfree.ipdb');
        $addr = $IPIP->getDistrict($ip); // 获取IPIP.net数据
@ -105,38 +107,6 @@ function getIPInfo($ip) {
    return $info;
 }

-function checkSpecial($ip) { // 检查特殊IP地址并返回说明
-    if ('::1' === $ip) {
-        $info['en'] = 'localhost IPv6 access';
-        $info['cn'] = '本地IPv6地址';
-    }
-    if (stripos($ip, 'fe80:') === 0) {
-        $info['en'] = 'link-local IPv6 access';
-        $info['cn'] = '链路本地IPv6地址';
-    }
-    if (strpos($ip, '127.') === 0) {
-        $info['en'] = 'localhost IPv4 access';
-        $info['cn'] = '本地IPv4地址';
-    }
-    if (strpos($ip, '10.') === 0) {
-        $info['en'] = 'private IPv4 access';
-        $info['cn'] = '私有IPv4地址';
-    }
-    if (preg_match('/^172\.(1[6-9]|2\d|3[01])\./', $ip) === 1) {
-        $info['en'] = 'private IPv4 access';
-        $info['cn'] = '私有IPv4地址';
-    }
-    if (strpos($ip, '192.168.') === 0) {
-        $info['en'] = 'private IPv4 access';
-        $info['cn'] = '私有IPv4地址';
-    }
-    if (strpos($ip, '169.254.') === 0) {
-        $info['en'] = 'link-local IPv4 access';
-        $info['cn'] = '链路本地IPv4地址';
-    }
-    return isset($info) ? $info : null;
-}
-
 function tryCIDR($beginIP, $endIP) { // 给定IP范围，尝试计算CIDR
    $tmp = ip2long($endIP) - ip2long($beginIP) + 1;
    if (pow(2, intval(log($tmp, 2))) == $tmp) { // 判断是否为2的整数次方
--- a/backend/qqwry.php
+++ b/backend/qqwry.php
@ -26,7 +26,7 @@ class QQWry {
    private $recordNum; // 总记录条数
    private $formatPort = '1602'; // 数据格式化分析接口

-    public function __construct($fileName) { // 构造函数
+    public function __construct($fileName = 'qqwry.dat') { // 构造函数
        $this->fp = fopen($fileName, 'rb');
        $this->firstRecord = $this->read4byte();
        $this->lastRecord  = $this->read4byte();
--- a/backend/specialIP.php
+++ b/backend/specialIP.php
@ -0,0 +1,155 @@
+<?php
+
+// data from: https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml
+
+$specialIPv4 = array(
+    [
+        'scope' => '0.0.0.0/8', // 0.0.0.0 - 0.255.255.255
+        'desc' => 'Self Identification'
+    ],
+    [
+        'scope' => '10.0.0.0/8', // 10.0.0.0 - 10.255.255.255
+        'desc' => 'Private Use Networks'
+    ],
+    [
+        'scope' => '100.64.0.0/10', // 100.64.0.0 - 100.127.255.255
+        'desc' => 'Shared Address Space'
+    ],
+    [
+        'scope' => '127.0.0.0/8', // 127.0.0.0 - 127.255.255.255
+        'desc' => 'Loopback'
+    ],
+    [
+        'scope' => '169.254.0.0/16', // 169.254.0.0 - 169.254.255.255
+        'desc' => 'Link Local'
+    ],
+    [
+        'scope' => '172.16.0.0/12', // 172.16.0.0 - 172.31.255.255
+        'desc' => 'Private Use Networks'
+    ],
+    [
+        'scope' => '192.0.0.0/29', // 192.0.0.0 - 192.0.0.7
+        'desc' => 'IPv4 Service Continuity Prefix'
+    ],
+    [
+        'scope' => '192.0.0.8/32', // 192.0.0.8
+        'desc' => 'IPv4 dummy address'
+    ],
+    [
+        'scope' => '192.0.0.9/32', // 192.0.0.9
+        'desc' => 'Port Control Protocol Anycast'
+    ],
+    [
+        'scope' => '192.0.0.10/32', // 192.0.0.10
+        'desc' => 'Traversal Using Relays around NAT Anycast'
+    ],
+    [
+        'scope' => '192.0.0.170/32', // 192.0.0.170
+        'desc' => 'NAT64/DNS64 Discovery'
+    ],
+    [
+        'scope' => '192.0.0.171/32', // 192.0.0.171
+        'desc' => 'NAT64/DNS64 Discovery'
+    ],
+    [
+        'scope' => '192.0.0.0/24', // 192.0.0.0 - 192.0.0.255
+        'desc' => 'IETF Protocol Assignments'
+    ],
+    [
+        'scope' => '192.0.2.0/24', // 192.0.2.0 - 192.0.2.255
+        'desc' => 'TEST-NET-1'
+    ],
+    // [
+    //     'scope' => '192.31.196.0/24', // 192.31.196.0 - 192.31.196.255
+    //     'desc' => 'AS112-v4'
+    // ],
+    [
+        'scope' => '192.52.193.0/24', // 192.52.193.0 - 192.52.193.255
+        'desc' => 'AMT'
+    ],
+    [
+        'scope' => '192.88.99.0/24', // 192.88.99.0 - 192.88.99.255
+        'desc' => 'Deprecated (6to4 Relay Anycast)'
+    ],
+    [
+        'scope' => '192.168.0.0/16', // 192.168.0.0 - 192.168.255.255
+        'desc' => 'Private Use Networks'
+    ],
+    // [
+    //     'scope' => '192.175.48.0/24', // 192.175.48.0 - 192.175.48.255
+    //     'desc' => 'Direct Delegation AS112 Service'
+    // ],
+    [
+        'scope' => '198.18.0.0/15', // 198.18.0.0 - 198.19.255.255
+        'desc' => 'Benchmarking'
+    ],
+    [
+        'scope' => '198.51.100.0/24', // 198.51.100.0 - 198.51.100.255
+        'desc' => 'TEST-NET-2'
+    ],
+    [
+        'scope' => '203.0.113.0/24', // 203.0.113.0 - 203.0.113.255
+        'desc' => 'TEST-NET-3'
+    ],
+    [
+        'scope' => '224.0.0.0/4', // 224.0.0.0 - 239.255.255.255
+        'desc' => 'IPv4 Class D for Multicasting'
+    ],
+    [
+        'scope' => '255.255.255.255/32', // 255.255.255.255
+        'desc' => 'Limited Broadcast'
+    ],
+    [
+        'scope' => '240.0.0.0/4', // 240.0.0.0 - 255.255.255.255
+        'desc' => 'IPv4 Class E Reserved'
+    ]
+);
+
+function cidrToRange($cidr) { // CIDR转IP段
+    $cidr = explode('/', $cidr);
+    $range['start'] = long2ip((ip2long($cidr[0])) & ((-1 << (32 - (int)$cidr[1]))));
+    $range['end'] = long2ip((ip2long($range['start'])) + pow(2, (32 - (int)$cidr[1])) - 1);
+    return $range;
+}
+
+function checkSpecialIPv4($ip) { // 检查特殊IPv4地址
+    global $specialIPv4;
+    $ipv4 = ip2long($ip);
+    foreach ($specialIPv4 as $special) {
+        $range = cidrToRange($special['scope']);
+        if ($ipv4 >= ip2long($range['start']) && $ipv4 <= ip2long($range['end'])) {
+            $detail = (new QQWry)->getDetail($ip);
+            return array(
+                'scope' => $special['scope'],
+                'descEn' => $special['desc'],
+                'descCn' => $detail['dataA'] . $detail['dataB']
+            );
+        }
+    }
+    return null; // 非特殊地址
+}
+
+function checkSpecialIPv6($ip) { // 检查特殊IPv6地址
+    // TODO: More IPv6 range
+    if ('::1' === $ip) {
+        $info['scope'] = '::1/128';
+        $info['en'] = 'localhost IPv6 access';
+        $info['cn'] = '本地IPv6地址';
+    }
+    if (stripos($ip, 'fe80:') === 0) {
+        $info['scope'] = 'fe80::/16';
+        $info['en'] = 'link-local IPv6 access';
+        $info['cn'] = '链路本地IPv6地址';
+    }
+    return isset($info) ? $info : null;
+}
+
+function checkSpecial($ip) { // 检查特殊IP地址并返回说明
+    if (filter_var($ip, \FILTER_VALIDATE_IP,\FILTER_FLAG_IPV4)) { // IPv4
+        return checkSpecialIPv4($ip);
+    } else {
+        return checkSpecialIPv6($ip);
+    }
+}
+
+?>