ADD file via upload

utils.py

@@ -0,0 +1,49 @@
+import typing
+from datetime import timedelta
+
+from django.core.cache import cache
+from django.utils.translation import gettext
+from django.utils.translation import gettext_lazy as _
+
+from djangoblog.utils import send_email
+
+_code_ttl = timedelta(minutes=5)  #lht: 验证码有效期5分钟
+
+
+def send_verify_email(to_mail: str, code: str, subject: str = _("Verify Email")):
+    #lht: """发送重设密码验证码
+    #lht: Args:
+    #lht:     to_mail: 接受邮箱
+    #lht:     subject: 邮件主题
+    #lht:     code: 验证码
+    #lht: """
+    html_content = _(
+        "You are resetting the password, the verification code is：%(code)s, valid within 5 minutes, please keep it "
+        "properly") % {'code': code}
+    send_email([to_mail], subject, html_content)
+
+
+def verify(email: str, code: str) -> typing.Optional[str]:
+    #lht: """验证code是否有效
+    #lht: Args:
+    #lht:     email: 请求邮箱
+    #lht:     code: 验证码
+    #lht: Return:
+    #lht:     如果有错误就返回错误str
+    #lht: Node:
+    #lht:     这里的错误处理不太合理，应该采用raise抛出
+    #lht:     否测调用方也需要对error进行处理
+    #lht: """
+    cache_code = get_code(email)
+    if cache_code != code:
+        return gettext("Verification code error")
+
+
+def set_code(email: str, code: str):
+    #lht: """设置code"""
+    cache.set(email, code, _code_ttl.seconds)
+
+
+def get_code(email: str) -> typing.Optional[str]:
+    #lht: """获取code"""
+    return cache.get(email)