[serverless练习]2.腾讯云-云函数SCF-发送邮件

1. 从hello world 模板，创建函数“utils_qqmail”

2. 首先这个程序里的模块，都是腾讯云直接支持的，不需要额外安装

index.py 内容，从我的utils项目中，复制过来

# coding:utf-8
"""
    发送邮件工具

    廖雪峰 SMTP发送邮件
    https://www.liaoxuefeng.com/wiki/897692888725344/923057144964288
    Python 简单发送邮件 / 发送带各种附件邮件
    https://blog.csdn.net/qq_20417499/article/details/80566265
"""
import json
from collections import defaultdict
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
import smtplib
import requests
import urllib.parse
import datetime


conf_file = "utils_mail.json"  # 配置文件名

class QQMail(object):
    """ QQMail    发送邮件 """

    def __init__(self, json_conf=None):
        # 读取 配置文件, 可以取外部配置
        if json_conf is None:
            json_conf = conf_file
        with open(json_conf) as mail_config:
            config = json.load(mail_config)

        self.account = config["account"]
        self.password = config["password"]
        self.smtp_server = config["smtp_server"]

    def send_normal(self, to, title, content, mime_type='html'):
        """
        发送不带附件的邮件
        :param to: list 格式收件人
        :param title:
        :param content:
        :param mime_type: "html" 或 "plain"
        :return:
        """
        msg = MIMEText(content, _subtype=mime_type, _charset='utf-8')
        msg['Subject'] = title
        msg['From'] = self.account
        msg['To'] = ";".join(to)  # 群发邮件要这样设置
        server = smtplib.SMTP(self.smtp_server)
        server.set_debuglevel(1)  # 打印出与服务器交互信息
        server.docmd("EHLO server")
        server.starttls()
        server.login(self.account, self.password)  # 登陆
        server.sendmail(self.account, to, msg.as_string())
        server.close()


def main_handler(event, context):
    print("Received event: " + json.dumps(event, indent = 2)) 
    # print("Received context: " + str(context))
    try:
        server = QQMail()
        server.send_normal(
            to=event["to"],
            title=datetime.datetime.now().strftime("%Y%m%d") + event["title"],
            content=event["content"]
        )
        return("success send")
    except Exception as e:
        print("error :"+repr(e))
        return("error :"+repr(e))

3. 新建1个文件“utils_mail.json”, 这里放邮箱的私密信息

{
    "account": "[email protected]",
    "smtp_server": "smtp.qq.com",
    "password": "xxxx"
}

 

4. 客服端的测试程序

# coding:utf-8

"""         腾讯云无服务器云函数(Serverless Cloud Function)
    1. 云函数-调用方式-公共参数
    https://cloud.tencent.com/document/api/583/17238
    2.             -接口鉴权 v3     申请密钥
    https://cloud.tencent.com/document/api/583/33846
    申请安全凭证的具体步骤如下：
    登录 腾讯云管理中心控制台。
    前往 “访问管理->访问密钥->API密钥管理” 的控制台页面。
    在 云API密钥 页面，单击【新建密钥】即可以创建一对密钥。
    3. python 腾讯云开发者工具套件（SDK）3.0    安装开发包
    https://github.com/TencentCloud/tencentcloud-sdk-python
    pip install tencentcloud-sdk-python
    https://github.com/tencentyun/tencent-serverless-python
    pip install tencentserverless

"""
import json
from tencentcloud.common import credential
from tencentcloud.common.profile.client_profile import ClientProfile
from tencentcloud.common.profile.http_profile import HttpProfile
from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
from tencentcloud.scf.v20180416 import scf_client, models

from tencentserverless import scf
from tencentserverless.exception import TencentServerlessSDKException

my_secretId = "xx"
my_secretKey = "yyy"

if __name__ == "__main__":
    # 调用 一个云函数
    print("prepare to invoke a function!")
    try:
        postdata = {"to": ["[email protected]"], "title": "it is a test", "content": "测试邮件"}  # 入参
        data = scf.invoke(function_name='utils_qqmail', secret_id=my_secretId,
                          secret_key=my_secretKey, region="ap-shanghai", data=postdata)
        print(data)
    except TencentServerlessSDKException as e:
        print(e)
    except TencentCloudSDKException as e:
        print(e)
    except Exception as e:
        print(e)

运行日志：

返回数据:
"success send"
日志:
START RequestId: 164b2f2a-2854-11ea-9522-5254007aa7a1
Event RequestId: 164b2f2a-2854-11ea-9522-5254007aa7a1
Received event: {
  "content": "\u6d4b\u8bd5\u90ae\u4ef6",
  "title": "it is a test",
  "to": [
    "[email protected]"
  ]
}
send: 'EHLO server\r\n'
。。。
END RequestId: 164b2f2a-2854-11ea-9522-5254007aa7a1
Report RequestId: 164b2f2a-2854-11ea-9522-5254007aa7a1 Duration:2276ms Memory:128MB MaxMemoryUsed:40.570312MB

 调用成功。云函数运行正常。

=================================================

todo：接下去，“云函数”部署到 “API网关”，可以通过api调用方式访问。