PHPで携帯電話からのアクセスかを判別するスクリプト書いた

携帯からのみアクセスを許したいページを作りたいとき、何で判別していますか？

UserAgentで判別。それだけではいけません。

UserAgentなんて簡単に偽装されてしまいます。

そこで、IPアドレス帯域を検査することで大丈夫。

携帯電話は各キャリアのサーバを経由してWebサーバにアクセスします。
その際、Webサーバに対して各キャリアのサーバのIPアドレスがリクエスト要求元のIPアドレスとして通知されます。

これは偽装しようが無いので信頼できる情報です。

下準備

• • PEAR::Net_UserAgent_Mobile
  • PEAR::Net_IPv4

2つのPEARパッケージのインストールが必要です。
インストールされてない方はインストールして下さい。

インクルードパスの設定なども各自。

ソース

<?php
class MobileCheck{
	private $zone;

	private function SetZone($env){
		/* IP帯域の設定 */
		if($env === 'docomo'){
			//i-mode(NTT DoCoMo)のIPアドレス帯域を設定
			//更新日時:2010-03-10
			//http://www.nttdocomo.co.jp/service/imode/make/content/ip/index.html
			$this->zone[0] = '210.153.84.0/24';
			$this->zone[1] = '210.136.161.0/24';
			$this->zone[2] = '210.153.86.0/24';
			$this->zone[3] = '124.146.174.0/24';
			$this->zone[4] = '124.146.175.0/24';
		}elseif($env === 'au'){
			//EZWeb(au)のIPアドレス帯域を設定
			//更新日時:2010-03-10
			//http://www.au.kddi.com/ezfactory/tec/spec/ezsava_ip.html
			$this->zone[0] = '210.230.128.224/28';
			$this->zone[1] = '121.111.227.160/27';
			$this->zone[2] = '61.117.1.0/28';
			$this->zone[3] = '219.108.158.0/27';
			$this->zone[4] = '219.125.146.0/28';
			$this->zone[5] = '61.117.2.32/29';
			$this->zone[6] = '61.117.2.40/29';
			$this->zone[7] = '219.108.158.40/29';
			$this->zone[8] = '219.125.148.0/25';
			$this->zone[9] = '222.5.63.0/25';
			$this->zone[10] = '222.5.63.128/25';
			$this->zone[11] = '222.5.62.128/25';
			$this->zone[12] = '59.135.38.128/25';
			$this->zone[13] = '219.108.157.0/25';
			$this->zone[14] = '219.125.145.0/25';
			$this->zone[15] = '121.111.231.0/25';
			$this->zone[16] = '121.111.227.0/25';
			$this->zone[17] = '118.152.214.192/26';
			$this->zone[18] = '118.159.131.0/25';
			$this->zone[19] = '118.159.133.0/25';
			$this->zone[20] = '118.159.132.160/27';
			$this->zone[21] = '111.86.142.0/26';
			$this->zone[22] = '111.86.141.64/26';
			$this->zone[23] = '111.86.141.128/26';
			$this->zone[24] = '111.86.141.192/26';
		}elseif($env === 'softbank'){
			//Yahoo!ケータイ(SoftBank)のIPアドレス帯域を設定
			//更新日時:2010-03-10
			//http://developers.softbankmobile.co.jp/dp/tech_svc/web/ip.php
			$this->zone[0] = '123.108.236.0/24';
			$this->zone[1] = '123.108.237.0/27';
			$this->zone[2] = '202.179.204.0/24';
			$this->zone[3] = '202.253.96.224/27';
			$this->zone[4] = '210.146.7.192/26';
			$this->zone[5] = '210.146.60.192/26';
			$this->zone[6] = '210.151.9.128/26';
			$this->zone[7] = '210.175.1.128/25';
			$this->zone[8] = '211.8.159.128/25';
		}elseif($env === 'willcom'){
			//AIR-EDGE PHONE(WILLCOM)のIPアドレス帯域を設定
			//更新日時:2010-03-10
			//http://www.willcom-inc.com/ja/service/contents_service/club_air_edge/for_phone/ip/
			$this->zone[0] = '61.198.128.0/24';
			$this->zone[1] = '61.198.129.0/24';
			$this->zone[2] = '61.198.130.0/24';
			$this->zone[3] = '61.198.131.0/24';
			$this->zone[4] = '61.198.132.0/24';
			$this->zone[5] = '61.198.133.0/24';
			$this->zone[6] = '61.198.134.0/24';
			$this->zone[7] = '61.198.135.0/24';
			$this->zone[8] = '61.198.136.0/24';
			$this->zone[9] = '61.198.137.0/24';
			$this->zone[10] = '61.198.138.100/32';
			$this->zone[11] = '61.198.138.101/32';
			$this->zone[12] = '61.198.138.102/32';
			$this->zone[13] = '61.198.138.103/32';
			$this->zone[14] = '61.198.139.0/29';
			$this->zone[15] = '61.198.139.128/27';
			$this->zone[16] = '61.198.139.160/28';
			$this->zone[17] = '61.198.140.0/24';
			$this->zone[18] = '61.198.141.0/24';
			$this->zone[19] = '61.198.142.0/24';
			$this->zone[20] = '61.198.143.0/24';
			$this->zone[21] = '61.198.160.0/24';
			$this->zone[22] = '61.198.161.0/24';
			$this->zone[23] = '61.198.162.0/24';
			$this->zone[24] = '61.198.163.0/24';
			$this->zone[25] = '61.198.164.0/24';
			$this->zone[26] = '61.198.165.0/24';
			$this->zone[27] = '61.198.166.0/24';
			$this->zone[28] = '61.198.168.0/24';
			$this->zone[29] = '61.198.169.0/24';
			$this->zone[30] = '61.198.170.0/24';
			$this->zone[31] = '61.198.171.0/24';
			$this->zone[32] = '61.198.172.0/24';
			$this->zone[33] = '61.198.173.0/24';
			$this->zone[34] = '61.198.174.0/24';
			$this->zone[35] = '61.198.175.0/24';
			$this->zone[36] = '61.198.248.0/24';
			$this->zone[37] = '61.198.249.0/24';
			$this->zone[38] = '61.198.250.0/24';
			$this->zone[39] = '61.198.251.0/24';
			$this->zone[40] = '61.198.252.0/24';
			$this->zone[41] = '61.198.253.0/24';
			$this->zone[42] = '61.198.254.0/24';
			$this->zone[43] = '61.198.255.0/24';
			$this->zone[44] = '61.204.0.0/24';
			$this->zone[45] = '61.204.2.0/24';
			$this->zone[46] = '61.204.3.0/25';
			$this->zone[47] = '61.204.3.128/25';
			$this->zone[48] = '61.204.4.0/24';
			$this->zone[49] = '61.204.5.0/24';
			$this->zone[50] = '61.204.6.0/25';
			$this->zone[51] = '61.204.6.128/25';
			$this->zone[52] = '61.204.7.0/25';
			$this->zone[53] = '61.204.92.0/24';
			$this->zone[54] = '61.204.93.0/24';
			$this->zone[55] = '61.204.94.0/24';
			$this->zone[56] = '61.204.95.0/24';
			$this->zone[57] = '114.20.49.0/24';
			$this->zone[58] = '114.20.50.0/24';
			$this->zone[59] = '114.20.51.0/24';
			$this->zone[60] = '114.20.52.0/24';
			$this->zone[61] = '114.20.53.0/24';
			$this->zone[62] = '114.20.54.0/24';
			$this->zone[63] = '114.20.55.0/24';
			$this->zone[64] = '114.20.56.0/24';
			$this->zone[65] = '114.20.57.0/24';
			$this->zone[66] = '114.20.58.0/24';
			$this->zone[67] = '114.20.59.0/24';
			$this->zone[68] = '114.20.60.0/24';
			$this->zone[69] = '114.20.61.0/24';
			$this->zone[70] = '114.20.62.0/24';
			$this->zone[71] = '114.20.63.0/24';
			$this->zone[72] = '114.20.64.0/24';
			$this->zone[73] = '114.20.65.0/24';
			$this->zone[74] = '114.20.66.0/24';
			$this->zone[75] = '114.20.67.0/24';
			$this->zone[76] = '114.21.255.0/27';
			$this->zone[77] = '125.28.0.0/24';
			$this->zone[78] = '125.28.1.0/24';
			$this->zone[79] = '125.28.15.0/24';
			$this->zone[80] = '125.28.16.0/24';
			$this->zone[81] = '125.28.17.0/24';
			$this->zone[82] = '125.28.2.0/24';
			$this->zone[83] = '125.28.3.0/24';
			$this->zone[84] = '125.28.4.0/24';
			$this->zone[85] = '125.28.5.0/24';
			$this->zone[86] = '125.28.8.0/24';
			$this->zone[87] = '210.168.246.0/24';
			$this->zone[88] = '210.168.247.0/24';
			$this->zone[89] = '210.169.92.0/24';
			$this->zone[90] = '210.169.93.0/24';
			$this->zone[91] = '210.169.94.0/24';
			$this->zone[92] = '210.169.95.0/24';
			$this->zone[93] = '210.169.96.0/24';
			$this->zone[94] = '210.169.97.0/24';
			$this->zone[95] = '210.169.98.0/24';
			$this->zone[96] = '210.169.99.0/24';
			$this->zone[97] = '211.126.192.128/25';
			$this->zone[98] = '211.18.232.0/24';
			$this->zone[99] = '211.18.233.0/24';
			$this->zone[100] = '211.18.234.0/24';
			$this->zone[101] = '211.18.235.0/24';
			$this->zone[102] = '211.18.236.0/24';
			$this->zone[103] = '211.18.237.0/24';
			$this->zone[104] = '219.108.10.0/24';
			$this->zone[105] = '219.108.11.0/24';
			$this->zone[106] = '219.108.12.0/24';
			$this->zone[107] = '219.108.13.0/24';
			$this->zone[108] = '219.108.14.0/24';
			$this->zone[109] = '219.108.15.0/24';
			$this->zone[110] = '219.108.7.0/24';
			$this->zone[111] = '219.108.8.0/24';
			$this->zone[112] = '219.108.9.0/24';
			$this->zone[113] = '221.119.0.0/24';
			$this->zone[114] = '221.119.1.0/24';
			$this->zone[115] = '221.119.2.0/24';
			$this->zone[116] = '221.119.3.0/24';
			$this->zone[117] = '221.119.4.0/24';
			$this->zone[118] = '221.119.6.0/24';
			$this->zone[119] = '221.119.7.0/24';
			$this->zone[120] = '221.119.8.0/24';
			$this->zone[121] = '221.119.9.0/24';
			$this->zone[122] = '114.20.49.0/24';
			$this->zone[123] = '114.20.50.0/24';
			$this->zone[124] = '114.20.51.0/24';
			$this->zone[125] = '114.20.52.0/24';
			$this->zone[126] = '114.20.53.0/24';
			$this->zone[127] = '114.20.54.0/24';
			$this->zone[128] = '114.20.55.0/24';
			$this->zone[129] = '114.20.56.0/24';
			$this->zone[130] = '114.20.57.0/24';
			$this->zone[131] = '114.20.58.0/24';
			$this->zone[132] = '114.20.59.0/24';
			$this->zone[133] = '114.20.60.0/24';
			$this->zone[134] = '114.20.61.0/24';
			$this->zone[135] = '114.20.62.0/24';
			$this->zone[136] = '114.20.63.0/24';
			$this->zone[137] = '114.20.64.0/24';
			$this->zone[138] = '114.20.65.0/24';
			$this->zone[139] = '114.20.66.0/24';
			$this->zone[140] = '114.20.67.0/24';
			$this->zone[141] = '114.21.255.0/27';
		}
	}//func-SetZone

	function GetZone(){
		return $this->zone;
	}

	private function CheckUA(){
		require_once ('Net/UserAgent/Mobile.php');

		$agent = Net_UserAgent_Mobile::singleton();
		/* UserAgentからキャリアを返す */
		if($agent->isDoCoMo()){
			$this->SetZone("docomo");
		}elseif($agent->isSoftbank()){
			$this->SetZone("softbank");
		}elseif($agent->isEZweb()){
			$this->SetZone("au");
		}elseif($agent->isWillcom()){
			$this->SetZone("willcom");
		}else{
			return FALSE;
		}
	}//func-CheckUA

	private function CheckIP($area){

		if($area===NULL){
			throw new Exception('帯域リストの取得に失敗');
		}

		require_once ('Net/IPv4.php');
		/* IPアドレス帯域($area)に含まれているか検査 */
		$flag = FALSE;

		foreach ($area as $value) {
			if (Net_IPv4::ipInNetwork($_SERVER["REMOTE_ADDR"], $value)) {
				$flag = TRUE;
				break;
			}
		}
		return $flag;
	}//func-CheckIP

	public function Check(){
		$ua = $this->CheckUA();
		if($ua===FALSE){
			return FALSE;
		}else{
			$zone = $this->GetZone($ua);
			return $this->CheckIP($this->GetZone());
		}
	}
}//class-MobileCheck
?>

利用方法

<?php
try{
	$mb = new MobileCheck;

	if($mb->Check()===TRUE){
		print "(mobile access)<br>携帯電話からのアクセスですね？";
	}else{
		print "(not mobile access)<br>携帯電話以外からのアクセスですね？";
	}
}catch(Exception $e){
	print $e->getMessage();
}
?>

MobileCheckクラスをインスタンス化して、Checkメソッドを呼び出すだけ。
Checkメソッドを呼び出すと、携帯と判別すればTRUE,携帯ではないと判別すればFalseが返る。

これだけ。

手法

• • ユーザーエージェントを元に比較するべきIPアドレス帯域を連想配列$zoneに代入。
  • $_SERVER["REMOTE_ADDR"]を使用してIPアドレスを元に、各キャリアで公開されているIPアドレス帯域と一致するかを検証

テストした機種

(携帯として判別)

• • au_W52H
  • au_W53T
  • docomo_N-02A
  • SoftBank_934SH
  • softbank_910T
  • Willcom_BAUM(WX341K)

(携帯電話ではないと判別)

• • SoftBank_iPhone
  • Willcom_Willcom03
  • Emobile_TouchDiamond

イーモバイルは判定対象外みたいですので無条件で携帯以外と判別されました。
スマートフォンも携帯電話ではない判別されました。