ホームページ > バックエンド開発 > PHPチュートリアル > php頻度制限クラスの使用例

php頻度制限クラスの使用例

不言
リリース: 2023-04-05 18:34:02
転載
2957 人が閲覧しました

この記事では、PHP の頻度制限クラスの使用例を紹介します。一定の参考値があります。困っている友人は参考にしてください。お役に立てれば幸いです。

例:

60 秒に 1 回の単一 IP 制限を実現

携帯電話番号などの 1 つのキーワードは 60 秒に 1 回制限され、10 秒に 1 回制限されます。 3600 秒ごとに 1 回

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

<?php

class Sina_Mail_WebAntispam {

 

    const PREFIX_WHITELIST = &#39;w:&#39;;

    const PREFIX_KILL = &#39;k:&#39;;

    const PREFIX_VERIFYCODE = &#39;c:&#39;;

    const PREFIX_VERIFIED = &#39;v:&#39;;

    const STATUS_UPDATE = &#39;[U]&#39;;

 

    private $mc = null;

    private $config = null;

    private $whitelist = array();

    private $keyPrefix = &#39;&#39;;

    private $intervals = array();

    private $updates = array();

    private $status = array();

 

    public function __construct($mc, $config) {

        $this->mc = $mc;

        $this->config = $config;

        if (isset($this->config->prefix)) {

            $this->keyPrefix = $this->config->prefix;

        }

        if (isset($this->config->whitelistKey)) {

            $wls = $this->mc->get($this->config->whitelistKey);

            if (!empty($wls)) {

                $this->whitelist = & $wls;

            }

        }

    }

 

    public function setWhitelist(&$whitelist) {

        $this->whitelist = & $whitelist;

    }

    /*验证限制规则*/

    public function check($ip = null, $key = null) {

        if (!$ip && !$key) {

            return false;

        }

 

        if ($key) {

            if (!is_array($key)) {

                $keys = array($key);

            } else {

                $keys = $key;

            }

        }

 

        // first filter by whitelist

        if (!empty($this->whitelist)) {

            if ($ip && $this->filterByWhitelist($ip, &#39;ip&#39;)) {

                $this->status[self::PREFIX_WHITELIST . $ip] = 1;

                return true;

            }

            if ($keys) {

                foreach ($keys as $key) {

                    if ($this->filterByWhitelist($key, &#39;key&#39;)) {

                        $this->status[self::PREFIX_WHITELIST . $key] = 1;

                        return true;

                    }

                }

            }

        }

 

        if ($ip) {

            $ip = $this->keyPrefix . $ip;

        }

 

        // second, check verified ok

        if (!empty($this->config->verified)) {

            if ($ip && $this->mc->get(self::PREFIX_VERIFIED . $ip)) {

                $this->status[self::PREFIX_VERIFIED . $ip] = 1;

                return true;

            }

            if ($keys) {

                foreach ($keys as $key) {

                    $verifiedKey = self::PREFIX_VERIFIED . $this->keyPrefix . $key;

                    if ($this->mc->get($verifiedKey)) {

                        $this->status[$verifiedKey] = 1;

                        return true;

                    }

                }

            }

        }

 

        $kos = !empty($this->config->kill);

        // check killed

        if ($kos) {

            if ($ip && $this->mc->get(self::PREFIX_KILL . $ip)) {

                $this->status[self::PREFIX_KILL . $ip] = 1;

                return false;

            }

            if ($keys) {

                foreach ($keys as $key) {

                    $killKey = self::PREFIX_KILL . $this->keyPrefix . $key;

                    if ($this->mc->get($killKey)) {

                        $this->status[$killKey] = 1;

                        return false;

                    }

                }

            }

        }

 

        // check ip rule

        if ($ip && isset($this->config->ip)) {

            if (!$this->checkRule($ip, $this->config->ip)) {

                if ($kos && $this->mc->set(self::PREFIX_KILL . $ip, 1, intval($this->config->kill))) {

                    $this->status[self::PREFIX_KILL . $ip] = 1;

                }

                return false;

            }

        }

 

        // check keys rule

        if ($keys && isset($this->config->key)) {

            foreach ($keys as $key) {

                if (!$this->checkRule($this->keyPrefix . $key, $this->config->key)) {

                    $killKey = self::PREFIX_KILL . $this->keyPrefix . $key;

                    if ($kos && $this->mc->set($killKey, 1, intval($this->config->kill))) {

                        $this->status[$killKey] = 1;

                    }

                    return false;

                }

            }

        }

 

        return true;

    }

    /*更新限制规则*/

    public function update($c = 1, $ip = null, $key = null) {

        if (is_null($ip) && is_null($key)) {

            if (!empty($this->updates)) {

                foreach ($this->updates as $k => $v) {

                    if (!$v && isset($this->intervals[$k])) {

                        if ($this->mc->add($k, $c, false,$this->intervals[$k])) {

                            $this->status[self::STATUS_UPDATE . $k] = $c;

                            continue;

                        }

                    }

                    $r = $this->mc->increment($k, $c);

                    $this->status[self::STATUS_UPDATE . $k] = $r;

                }

            }

        } else {

            if (!is_null($ip) && isset($this->config->ip)) {

                $rule = $this->config->ip;

                foreach ($rule as $interval => $limit) {

                    $k = $this->keyPrefix . $ip . &#39;_&#39; . $interval;

                    if ($this->mc->add($k, $c,false,$interval)) {

                        $this->status[self::STATUS_UPDATE . $k] = true;

                        continue;

                    }

                    $r = $this->mc->increment($k, $c);

                    $this->status[self::STATUS_UPDATE . $k] = $r;

                }

            }

            if (!is_null($key) && isset($this->config->key)) {

                $rule = $this->config->key;

                if (!is_array($key)) {

                    $keys = array($key);

                } else {

                    $keys = $key;

                }

                foreach ($keys as $key) {

                    foreach ($rule as $interval => $limit) {

                        $k = $this->keyPrefix . $key . &#39;_&#39; . $interval;

                        if ($this->mc->add($k, $c,false,$interval)) {

                            $this->status[self::STATUS_UPDATE . $k] = true;

                            continue;

                        }

                        $r = $this->mc->increment($k, $c);

                        $this->status[self::STATUS_UPDATE . $k] = $r;

                    }

                }

            }

        }

    }

 

    public function checkVerifyCode($key, $code) {

        $servcode = $this->mc->get(self::PREFIX_VERIFYCODE . $this->keyPrefix . $key);

        if (strcasecmp($servcode, $code) == 0) {

            $verified = intval($this->config->verified);

            if ($verified > 0) {

                $r = $this->mc->set(self::PREFIX_VERIFIED . $this->keyPrefix . $key, 1, false, $verified);

            } else {

                $r = true;

            }

            if ($r) {

                $this->mc->delete(self::PREFIX_VERIFYCODE . $this->keyPrefix . $key);

            }

            return $r;

        }

        return false;

    }

 

    public function isVerified($key) {

        $r = $this->mc->get(self::PREFIX_VERIFIED . $this->keyPrefix . $key);

        if (!empty($r)) {

            return true;

        } else {

            return false;

        }

    }

 

    public function setVerifyCode($key, $code) {

        $verifytime = intval($this->config->verifytime);

        if ($verifytime < 1) {

            return false;

        }

        return $this->mc->set(self::PREFIX_VERIFYCODE . $this->keyPrefix . $key, $code, false, $verifytime);

    }

 

    public function getStatus() {

        return $this->status;

    }

 

    private function filterByWhitelist($value, $key) {

//        if (empty($this->whitelist[$key])) {

//            return false;

//        }

//        $ls = & $this->whitelist[$key];

        $ls = & $this->whitelist;

        foreach ($ls as $i) {

            if ($i[strlen($i) - 1] == &#39;.&#39;) { // ip segment

                if (strpos($value, $i) === 0) {

                    return true;

                }

            } else {

                if (strcmp($i, $value) === 0) {

                    return true;

                }

            }

        }

        return false;

    }

 

    private function checkRule($key, $rule) {

        $flag = true;

        if (!empty($rule)) {

            foreach ($rule as $interval => $limit) {

                $k = $key . &#39;_&#39; . $interval;

                $c = $this->mc->get($k);

                if (!$c) {

                    $this->updates[$k] = 0;

                    $this->intervals[$k] = $interval;

                    $this->status[$k] = 0;

                } else {

                    $this->updates[$k] = $c;

                    $this->status[$k] = $c;

                    if ($c >= $limit) {

                        $flag = false;

                    }

                }

            }

        }

        return $flag;

    }

 

    public static function getInstance($conf) {

        $mc = new Memcache();

        $mc->connect("115.159.28.112");

        $conf=json_decode(json_encode($conf));

        return new self($mc, $conf);

    }

 

}

/*

单个ip限制60秒1次

单个关键字,比如手机号,限制60秒1次,3600秒10次

*/

$conf=array(

            &#39;prefix&#39; => &#39;selfservice:&#39;,

            &#39;key&#39; => array(60 => 1,3600=>10),

            &#39;ip&#39; => array(60 => 1),

        );

$spam=Sina_Mail_WebAntispam::getInstance($conf);

if(!$spam->check(&#39;127.25.12.123&#39;,17610725730)){

    echo "limit...";

    exit;

}

 

//更新频率限制

$spam->update();

ログイン後にコピー

#memache の最終ストレージ キー

##[推奨コース:

PHP ビデオ チュートリアル

]

以上がphp頻度制限クラスの使用例の詳細内容です。詳細については、PHP 中国語 Web サイトの他の関連記事を参照してください。

関連ラベル:
php
このウェブサイトの声明
この記事の内容はネチズンが自主的に寄稿したものであり、著作権は原著者に帰属します。このサイトは、それに相当する法的責任を負いません。盗作または侵害の疑いのあるコンテンツを見つけた場合は、admin@php.cn までご連絡ください。
最新の問題
PHP 拡張子 intl
から 1970-01-01 08:00:00
0
0
0
phpのデータ取得?
から 1970-01-01 08:00:00
0
0
0
PHP GET エラー レポート
から 1970-01-01 08:00:00
0
0
0
phpを上手に学ぶ方法
から 1970-01-01 08:00:00
0
0
0
人気のチュートリアル
詳細>
最新のダウンロード
詳細>
ウェブエフェクト
公式サイト
サイト素材
フロントエンドテンプレート