import json, base64
from smtplib import SMTP_SSL


def formEML(configname='config.json'):
    s = ""
    with open(configname, 'r') as f:
        data = json.loads(f.read())

    s += 'From: {}\n'.format(data['From'])
    s += 'To: {}\n'.format(data['To'])
    s += 'Subject: {}\n'.format(data['Subject'])
    s += 'MIME-Version: 1.0\n'
    s += 'Content-Type: multipart/mixed;\n'
    s += '\tboundary="boundary1"\n\n'

    for e in data['Attachments']:
        s += '--boundary1\n'
        s += 'Content-Disposition: attachment;\n'
        s += 'Content-Transfer-Encoding: base64\n'
        s += 'Content-Type: image/png;\n\n'
        with open(e, 'rb') as f:
            s += base64.b64encode(f.read()).decode() + '\n';

    s += '--boundary1\n'
    s += 'Content-Type: text/plain; charset=windows-1251\n\n'
    s += 'Hello!!!\n'
    s += '--boundary1--\n'
    s += '.'

    return s

def send(msg, login, password, smtp_server='smtp.mail.ru'):
    smtp = SMTP_SSL(smtp_server)
    smtp.ehlo()
    smtp.login(login, password)
    smtp.sendmail(login, [login], msg)
    smtp.quit()

if __name__ =='__main__':
    with open('personal_info.txt', 'r') as f:
        login, password = f.read().split('\n')
    msg = formEML()
    print(msg)
    send(msg, login, password)