初始化本地仓库

backend/core/captcha/Captcha.php

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+<?php
+/**
+ *+------------------
+ * madong
+ *+------------------
+ * Copyright (c) https://gitee.com/motion-code  All rights reserved.
+ *+------------------
+ * Author: Mr. April (405784684@qq.com)
+ *+------------------
+ * Official Website: http://www.madong.tech
+ */
+
+namespace core\captcha;
+
+use core\exception\handler\CaptchaException;
+use Ramsey\Uuid\Uuid;
+use support\Redis;
+use support\Request;
+use Throwable;
+use Webman\Captcha\CaptchaBuilder;
+use Webman\Captcha\PhraseBuilder;
+
+class Captcha
+{
+    /**
+     * 生成验证码
+     *
+     * @param \support\Request|null $request
+     * @param string                $type
+     *
+     * @return array
+     */
+    public function captcha(Request|null $request = null, string $type = 'admin-login'): array
+    {
+        if (empty($request)) {
+            $request = \request();
+        }
+        $builder = new PhraseBuilder(4, 'abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ');
+
+        $captcha = new CaptchaBuilder(null, $builder);
+        $captcha->setBackgroundColor(242, 243, 245);
+        $captcha->build(120, 36);
+
+        $uuid = Uuid::uuid4();
+        $uuid = $uuid->toString();
+        // 获取配置
+        $config = $this->getCaptchaConfig();
+        $code   = strtolower($captcha->getPhrase());
+
+        // 存储验证码
+        $this->storeCaptcha($uuid, $code, $config['mode'], $config['expire'], $request);
+
+        // 返回验证码图像
+        $img_content = $captcha->get();
+
+        $base64 = 'data:image/png;base64,' . base64_encode($img_content);
+
+        return compact('uuid', 'base64');
+
+    }
+
+    /**
+     * 生成手机验证码
+     *
+     * @param \support\Request|null $request
+     * @param int                   $length
+     *
+     * @return array
+     */
+    public function generateSmsCaptcha(Request|null $request = null, int $length = 6): array
+    {
+        if (empty($request)) {
+            $request = \request();
+        }
+        $uid = $request->input('mobile_phone');
+        $this->validatePhoneNumber($uid);
+
+        // 生成 6 位数字验证码
+        $code = str_pad(rand(0, 999999), $length, '0', STR_PAD_LEFT);
+
+        // 获取配置
+        $config = $this->getCaptchaConfig();
+
+        // 存储验证码
+        $this->storeSmsCaptcha($uid, $code, $config['mode'], $config['expire'], $request);
+
+        return [
+            'code' => $code,
+            'uid'  => $uid,
+        ];
+    }
+
+    /**
+     * 检查验证码
+     *
+     * @param string     $key
+     * @param string|int $value
+     *
+     * @return bool
+     */
+    public
+    function check(string $key, string|int $value): bool
+    {
+        $config = $this->getCaptchaConfig();
+        $code   = $this->retrieveCaptcha($key, $config['mode']);
+
+        return strtolower($value) === $code;
+    }
+
+    /**
+     * 获取验证码配置
+     *
+     * @return array
+     */
+    protected function getCaptchaConfig(): array
+    {
+        return [
+            'mode'   => config('core.captcha.app.mode', 'session'),
+            'expire' => config('core.captcha.app.expire', 300),
+        ];
+    }
+
+    /**
+     * 存储验证码
+     *
+     * @param string  $key
+     * @param string  $code
+     * @param string  $mode
+     * @param int     $expire
+     * @param Request $request
+     *
+     * @throws CaptchaException
+     */
+    protected function storeCaptcha(string $key, string $code, string $mode, int $expire, Request $request): void
+    {
+        try {
+            if ($mode === 'redis') {
+                Redis::set($key, $code, 'EX', $expire);
+            } else {
+                $request->session()->set($key, $code);
+            }
+        } catch (\Exception $e) {
+            throw new CaptchaException('验证码生成失败，请检查配置', -1);
+        }
+    }
+
+    /**
+     * 存储手机验证码
+     *
+     * @param string  $uid
+     * @param string  $code
+     * @param string  $mode
+     * @param int     $expire
+     * @param Request $request
+     *
+     * @throws CaptchaException
+     */
+    protected
+    function storeSmsCaptcha(string $uid, string $code, string $mode, int $expire, Request $request): void
+    {
+        try {
+            if ($mode === 'redis') {
+                Redis::set($uid, $code, 'EX', $expire);
+            } else {
+                $request->session()->set($uid, $code);
+            }
+        } catch (\Exception $e) {
+            throw new CaptchaException('验证码生成失败，请检查配置', -1);
+        }
+    }
+
+    /**
+     * 验证手机号
+     *
+     * @param string $uid
+     *
+     * @throws CaptchaException
+     */
+    protected
+    function validatePhoneNumber(string $uid): void
+    {
+        if (!$uid || !preg_match('/^\+?[0-9]{10,15}$/', $uid)) {
+            throw new CaptchaException('无效的手机号');
+        }
+    }
+
+    /**
+     * 从存储中检索验证码
+     *
+     * @param string $key
+     * @param string $mode
+     *
+     * @return string|null
+     */
+    protected
+    function retrieveCaptcha(string $key, string $mode): ?string
+    {
+        try {
+            if ($mode === 'redis') {
+                $code = Redis::get($key);
+                Redis::del($key); // 删除验证码
+            } else {
+                $code = session($key);
+                session()->forget($key); // 删除验证码
+            }
+            return $code;
+        } catch (\Exception $e) {
+            return null;
+        }
+    }
+}

backend/core/captcha/config/app.php

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+<?php
+
+return [
+    'enable'            =>  true,
+    'captcha'           => [
+        'mode'    => 'session',//session||redis
+        'expire'  => 300,//验证码过期时间
+        'default' => [
+        ],
+    ],
+];
+