32 lines
824 B
Go
32 lines
824 B
Go
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package utils
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import (
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"crypto/rand"
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"fmt"
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)
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// GenerateCaptcha 生成6位数字验证码
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func GenerateCaptcha() (string, error) {
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// 生成6位随机数字
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b := make([]byte, 3)
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if _, err := rand.Read(b); err != nil {
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return "", err
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}
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// 将随机字节转换为6位数字
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num := int(b[0])<<16 | int(b[1])<<8 | int(b[2])
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return fmt.Sprintf("%06d", num%1000000), nil
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}
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// GenerateEmailCaptchaContent 生成验证码邮件内容
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func GenerateEmailCaptchaContent(code, username, action string) string {
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return fmt.Sprintf(`
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<h3>验证码</h3>
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<p>您好，%s</p>
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<p>您正在进行%s操作，验证码为：</p>
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<h2 style="color: #1890ff;">%s</h2>
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<p>验证码有效期为5分钟，请勿泄露给他人。</p>
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<p>如果这不是您的操作，请忽略此邮件。</p>
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`, username, action, code)
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}
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