Python如何利用IMAP实现邮箱客户端功能

import imaplib
import email
import datetime
 
 
class EmailUtil:
    """
    Email帮助类
    """
    host = 'imap.qq.com'  # 主机IP或者域名
    port = '993'  # 端口
    username = '********'  # 用户名
    password = '**************'  # 密码或授权码
    imap = None  # 邮箱连接对象
 
    # mail_box = '**************'  # 邮箱名
 
    def __init__(self, host, port):
        """初始化方法"""
        self.host = host
        self.port = port
        # 初始化一个邮箱链接对象
        self.imap = imaplib.IMAP4_SSL(host=self.host, port=int(self.port))
 
    def login(self, username, password):
        """登录"""
        self.username = username
        self.password = password
        self.imap.login(user=self.username, password=self.password)
 
    def get_mail(self):
        """获取邮件"""
        # self.mail_box = mail_box
        email_infos = []
        if self.imap is not None:
            self.imap.select(readonly=False)
            typ, data = self.imap.search(None, 'ALL')  # 返回一个元组，data为此邮箱的所有邮件数据
            #  数据格式 data =  [b'1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18']
            if typ == 'OK':
                for num in data[0].split():
                    if int(num) > 10:
                        # 超过20，退出循环，不输出
                        break
                    typ1, data1 = self.imap.fetch(num, '(RFC822)')  # 通过邮箱编号和选择获取数据
                    if typ1 == 'OK':
                        print('**********************************begin******************************************')
                        msg = email.message_from_string(data1[0][1].decode("utf-8"))  # 用email库获取解析数据(消息体)
                        # 获取邮件标题并进行进行解码，通过返回的元组的第一个元素我们得知消息的编码
                        msgCharset = email.header.decode_header(msg.get('Subject'))[0][1]
                        # print('msg = ',msg)
                        # print('msgCharset= ',msgCharset)  # gb2312
                        recv_date = self.get_email_date(email.header.decode_header(msg.get('Date')))
                        mail_from = email.header.decode_header(msg.get('From'))[0][0]
                        if type(mail_from) == bytes:
                            mail_from = mail_from.decode(msgCharset)
 
                        mail_to = email.header.decode_header(msg.get('To'))[0][0]
                        subject = email.header.decode_header(msg.get('Subject'))[0][0].decode(msgCharset)  # 获取标题并通过标题进行解码
 
                        print("Message %s\n%s\n" % (num, subject))  # 打印输出标题
                        print('mail_from:' + mail_from + ' mail_to:' + mail_to + ' recv_date:' + str(recv_date))
                        # # 邮件内容
                        # for part in msg.walk():
                        #     if not part.is_multipart():
                        #         name = part.get_param("name")
                        #         if not name:  # 如果邮件内容不是附件可以打印输出
                        #             print(part.get_payload(decode=True).decode(msgCharset))
                        # print('***********************************end*****************************************')
                        email_info = {
                            "num": num,
                            "subject": subject,
                            "recv_date": recv_date,
                            "mail_to": mail_to,
                            "mail_from": mail_from
                        }
                        email_infos.append(email_info)
        else:
            print('请先初始化并登录')
        return email_infos
 
    def get_email_content(self, num):
        content = None
        typ1, data1 = self.imap.fetch(num, '(RFC822)')  # 通过邮箱编号和选择获取数据
        if typ1 == 'OK':
            print('**********************************begin******************************************')
            msg = email.message_from_string(data1[0][1].decode("utf-8"))  # 用email库获取解析数据(消息体)
            print(msg)
            # 获取邮件标题并进行进行解码，通过返回的元组的第一个元素我们得知消息的编码
            msgCharset = email.header.decode_header(msg.get('Subject'))[0][1]
            # transfer_encoding = email.header.decode_header(msg.get('Content-Transfer-Encoding'))
            transfer_encoding = email.utils.parseaddr(msg.get('Content-Transfer-Encoding'))[1]
            print("transfer_encoding:",transfer_encoding)
            print("charset:",msgCharset)
            # 邮件内容
            for part in msg.walk():
                if not part.is_multipart():
                    name = part.get_param("name")
                    if not name:  # 如果邮件内容不是附件可以打印输出
                        if transfer_encoding == '8bit':
                            content = part.get_payload(decode=False)
                        else:
                            content = part.get_payload(decode=True).decode(msgCharset)
 
            print(content)
            print('***********************************end*****************************************')
        return content
 
    def get_email_date(self, date):
        """获取时间"""
        utcstr = date[0][0].replace('+00:00', '')
        utcdatetime = None
        localtimestamp = None
        try:
            utcdatetime = datetime.datetime.strptime(utcstr, '%a, %d %b %Y %H:%M:%S +0000 (GMT)')
            localdatetime = utcdatetime + datetime.timedelta(hours=+8)
            localtimestamp = localdatetime.timestamp()
        except:
            try:
                utcdatetime = datetime.datetime.strptime(utcstr, '%a, %d %b %Y %H:%M:%S +0800 (CST)')
                localtimestamp = utcdatetime.timestamp()
            except:
                utcdatetime = datetime.datetime.strptime(utcstr, '%a, %d %b %Y %H:%M:%S +0800')
                localtimestamp = utcdatetime.timestamp()
        return localtimestamp
 
 
if __name__ == '__main__':
    host = 'imap.qq.com'  # 主机IP或者域名
    port = '993'  # 端口
    username = '********'  # 用户名
    password = '**************'  # 密码
    mail_box = '**************'  # 邮箱名
    eamil_util = EmailUtil(host=host, port=port)
    eamil_util.login(username=username, password=password)
    eamil_util.get_mail()
    print('done')

from tkinter import *
from tkinterie.tkinterIE import WebView
from test_email import EmailUtil
import time
import os
 
class Application(Frame):
    email_util = None
    total_line= 0
 
    def __init__(self, master=None):
        '''初始化方法'''
        super().__init__(master)  # 调用父类的初始化方法
        host = 'imap.qq.com'  # 主机IP或者域名
        port = '993'  # 端口
        username = '*********'  # 用户名
        password = '**************'  # 密码或授权码
        self.email_util = EmailUtil(host=host, port=port)
        self.email_util.login(username=username, password=password)
        self.master = master
        # self.pack(side=TOP, fill=BOTH, expand=1)  # 此处填充父窗体
        self.create_widget()
 
    def create_widget(self):
        self.img_logo = PhotoImage(file="logo.png")
        self.btn_logo = Button(image=self.img_logo , bg='#222E3C')
        self.btn_logo.grid(row=0, column=0, sticky=N + E + W+S)
        # 收件箱初始化
        records = self.email_util.get_mail()
        for i in range(len(records)):
            # 时间特殊处理
            recv_date =  time.strftime("%Y-%m-%d", time.localtime(records[i]["recv_date"]))
            subject = "{0}   {1}".format(recv_date, records[i]["subject"])
            print(subject)
            num = records[i]["num"]
            btn_subject = Button(self.master, text=subject,height=2, width=30, bg=("#F0FFFF" if i%2==0 else "#E6E6FA"), anchor='w',command=lambda num=num: self.get_email_content(num) )
            btn_subject.grid(row=(i + 1), column=0, padx=2, pady=1)
        # 明细
        self.total_line=i
        self.web_view = WebView(self.master, width=530, height=560)
        self.web_view.grid(row=0, column=1, rowspan=(i+2), padx=2, pady=5, sticky=N + E + W)
 
    def get_email_content(self,num):
        """获取邮件明细"""
        content = self.email_util.get_email_content(num)
        print(content)
        if content.find('GBK')>0 or content.find('gbk')>0 or content.find('cnblogs')>0:
            print('1-1111')
            # content = content.encode().decode('gbk')
        # print(content)
        self.save_data(content)
        abs_path =  os.path.abspath("content.html")
        self.web_view= WebView(self.master, width=530, height=560,url="file://"+abs_path)
        self.web_view.grid(row=0, column=1, rowspan=(self.total_line + 2), padx=5, pady=5, sticky=N + E + W)
 
 
    def save_data(self,content):
        """保存数据"""
        with open('content.html', 'w', encoding='utf-8') as f:
            f.write(content)
 
 
if __name__ == '__main__':
    root = Tk()
    root.title('个人邮箱')
    root.geometry('760x580+200+200')
    root.setvar("bg", "red")
    app = Application(master=root)
    root.mainloop()