first commit

2024-04-04 21:28:09 +08:00
commit fe9661855e
4192 changed files with 618218 additions and 0 deletions
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+<?php
+
+namespace app\model;
+//验证码类
+class Validate
+{
+    private $charset = 'abcdefghkmnprstuvwxyzABCDEFGHKMNPRSTUVWXYZ23456789'; //随机因子
+    private $code; //验证码
+    private $codelen = 4; //验证码长度
+    private $width = 130; //宽度
+    private $height = 50; //高度
+    private $img; //图形资源句柄
+    private $font; //指定的字体
+    private $fontsize = 20; //指定字体大小
+    private $fontcolor; //指定字体颜色 
+
+    //构造方法初始化
+    public function __construct()
+    {
+        $this->font = $_SERVER['DOCUMENT_ROOT'] . '/static/admin/css/fonts/code.ttc';
+    }
+
+    //生成随机码
+    private function createCode()
+    {
+        $_len = strlen($this->charset) - 1;
+        for ($i = 0; $i < $this->codelen; $i++) {
+            $this->code .= $this->charset[mt_rand(0, $_len)];
+        }
+    }
+
+    //生成背景
+    private function createBg()
+    {
+        $this->img = imagecreatetruecolor($this->width, $this->height);
+        $color = imagecolorallocate($this->img, mt_rand(157, 255), mt_rand(157, 255), mt_rand(157, 255));
+        imagefilledrectangle($this->img, 0, $this->height, $this->width, 0, $color);
+    }
+
+    //生成文字
+    private function createFont()
+    {
+        $_x = $this->width / $this->codelen;
+        for ($i = 0; $i < $this->codelen; $i++) {
+            $this->fontcolor = imagecolorallocate($this->img, mt_rand(0, 156), mt_rand(0, 156), mt_rand(0, 156));
+            imagettftext($this->img, $this->fontsize, mt_rand(-30, 30), $_x * $i + mt_rand(1, 5), $this->height / 1.4, $this->fontcolor, $this->font, $this->code[$i]);
+        }
+    }
+
+    //生成线条、雪花
+    private function createLine()
+    {
+        for ($i = 0; $i < 6; $i++) {
+            $color = imagecolorallocate($this->img, mt_rand(0, 156), mt_rand(0, 156), mt_rand(0, 156));
+            imageline($this->img, mt_rand(0, $this->width), mt_rand(0, $this->height), mt_rand(0, $this->width), mt_rand(0, $this->height), $color);
+        }
+        for ($i = 0; $i < 100; $i++) {
+            $color = imagecolorallocate($this->img, mt_rand(200, 255), mt_rand(200, 255), mt_rand(200, 255));
+            imagestring($this->img, mt_rand(1, 5), mt_rand(0, $this->width), mt_rand(0, $this->height), '*', $color);
+        }
+    }
+
+    //对外生成
+    public function getImg()
+    {
+        $this->createBg();
+        $this->createCode();
+        $this->createLine();
+        $this->createFont();
+        imagepng($this->img);
+        $image_data = ob_get_contents();
+        ob_end_clean();
+        imagedestroy($this->img);
+        return "data:image/png;base64," . base64_encode($image_data);
+    }
+
+    //获取验证码
+    public function getCode()
+    {
+        return strtolower($this->code);
+    }
+    /**
+     * 验证图形验证码
+     *
+     * @return void
+     */
+    public function validateImgCode($token, $code)
+    {
+        if (!$token) {
+            return jerr("TOKEN参数丢失");
+        }
+        if (!$code) {
+            return jerr("请输入验证码");
+        }
+        $code = strtoupper($code);
+        $token = $token;
+        $_code = cache($token);
+        if (!$_code) {
+            return jerr("验证码已过期");
+        }
+        if ($code != $_code) {
+            return jerr('验证码错误');
+        }
+        // 删除设置的缓存
+        cache($token, null);
+        return null;
+    }
+}