gy9vin
328 lines
14 KiB
Python
328 lines
14 KiB
Python
"""Email service for sending verification and password reset emails."""
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import logging
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import smtplib
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from email.mime.multipart import MIMEMultipart
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from email.mime.text import MIMEText
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from app.config import settings
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logger = logging.getLogger(__name__)
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class EmailService:
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"""Service for sending emails via SMTP."""
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def __init__(self):
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self.host = settings.SMTP_HOST
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self.port = settings.SMTP_PORT
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self.user = settings.SMTP_USER
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self.password = settings.SMTP_PASSWORD
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self.from_email = settings.get_smtp_from_email()
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self.from_name = settings.SMTP_FROM_NAME
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self.use_tls = settings.SMTP_USE_TLS
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def is_configured(self) -> bool:
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"""Check if SMTP is properly configured."""
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return settings.is_smtp_configured()
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def _get_smtp_connection(self) -> smtplib.SMTP:
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"""Create and return SMTP connection."""
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smtp = smtplib.SMTP(self.host, self.port)
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smtp.ehlo()
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if self.use_tls:
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smtp.starttls()
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smtp.ehlo()
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# Only attempt login if credentials are provided AND server supports AUTH
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if self.user and self.password:
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if smtp.has_extn('auth'):
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smtp.login(self.user, self.password)
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else:
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logger.debug(f'SMTP server {self.host} does not support AUTH, skipping authentication')
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return smtp
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def send_email(
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self,
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to_email: str,
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subject: str,
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body_html: str,
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body_text: str | None = None,
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) -> bool:
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"""
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Send an email.
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Args:
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to_email: Recipient email address
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subject: Email subject
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body_html: HTML body content
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body_text: Plain text body (optional, generated from HTML if not provided)
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Returns:
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True if email was sent successfully, False otherwise
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"""
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if not self.is_configured():
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logger.warning('SMTP is not configured, cannot send email')
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return False
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try:
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msg = MIMEMultipart('alternative')
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msg['Subject'] = subject
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msg['From'] = f'{self.from_name} <{self.from_email}>'
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msg['To'] = to_email
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# Plain text version
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if body_text is None:
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# Simple HTML to text conversion
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import re
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body_text = re.sub(r'<[^>]+>', '', body_html)
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body_text = body_text.replace(' ', ' ')
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body_text = body_text.replace('&', '&')
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body_text = body_text.replace('<', '<')
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body_text = body_text.replace('>', '>')
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part1 = MIMEText(body_text, 'plain', 'utf-8')
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part2 = MIMEText(body_html, 'html', 'utf-8')
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msg.attach(part1)
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msg.attach(part2)
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with self._get_smtp_connection() as smtp:
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smtp.sendmail(self.from_email, to_email, msg.as_string())
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logger.info(f'Email sent successfully to {to_email}')
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return True
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except Exception as e:
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logger.error(f'Failed to send email to {to_email}: {e}')
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return False
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def send_verification_email(
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self,
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to_email: str,
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verification_token: str,
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verification_url: str,
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username: str | None = None,
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language: str = 'ru',
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) -> bool:
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"""
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Send email verification email.
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Args:
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to_email: Recipient email address
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verification_token: Verification token
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verification_url: Base URL for verification (token will be appended)
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username: User's name for personalization
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language: Language code (ru, en, zh, ua)
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Returns:
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True if email was sent successfully, False otherwise
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"""
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full_url = f'{verification_url}?token={verification_token}'
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expire_hours = settings.get_cabinet_email_verification_expire_hours()
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# Localized content
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texts = {
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'ru': {
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'greeting': f'Здравствуйте{", " + username if username else ""}!',
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'subject': 'Подтверждение email адреса',
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'intro': 'Спасибо за регистрацию! Пожалуйста, подтвердите ваш email адрес, нажав на кнопку ниже:',
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'button': 'Подтвердить email',
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'or_copy': 'Или скопируйте и вставьте эту ссылку в браузер:',
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'expires': f'Ссылка действительна в течение {expire_hours} часов.',
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'ignore': 'Если вы не создавали аккаунт, просто проигнорируйте это письмо.',
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'regards': 'С уважением,',
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},
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'en': {
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'greeting': f'Hello{", " + username if username else ""}!',
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'subject': 'Verify your email address',
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'intro': 'Thank you for registering! Please verify your email address by clicking the button below:',
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'button': 'Verify Email',
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'or_copy': 'Or copy and paste this link in your browser:',
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'expires': f'This link will expire in {expire_hours} hours.',
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'ignore': "If you didn't create an account, you can safely ignore this email.",
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'regards': 'Best regards,',
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},
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'zh': {
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'greeting': f'您好{", " + username if username else ""}!',
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'subject': '验证您的邮箱地址',
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'intro': '感谢您的注册！请点击下方按钮验证您的邮箱地址：',
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'button': '验证邮箱',
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'or_copy': '或将此链接复制并粘贴到浏览器中：',
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'expires': f'此链接将在 {expire_hours} 小时后过期。',
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'ignore': '如果您没有创建账户，请忽略此邮件。',
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'regards': '此致,',
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},
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'ua': {
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'greeting': f'Вітаємо{", " + username if username else ""}!',
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'subject': 'Підтвердження email адреси',
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'intro': 'Дякуємо за реєстрацію! Будь ласка, підтвердіть вашу email адресу, натиснувши на кнопку нижче:',
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'button': 'Підтвердити email',
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'or_copy': 'Або скопіюйте та вставте це посилання в браузер:',
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'expires': f'Посилання дійсне протягом {expire_hours} годин.',
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'ignore': 'Якщо ви не створювали акаунт, просто проігноруйте цей лист.',
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'regards': 'З повагою,',
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},
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}
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t = texts.get(language, texts['ru'])
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subject = t['subject']
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body_html = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<style>
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body {{ font-family: Arial, sans-serif; line-height: 1.6; color: #333; }}
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.container {{ max-width: 600px; margin: 0 auto; padding: 20px; }}
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.button {{
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display: inline-block;
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padding: 12px 24px;
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background-color: #007bff;
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color: white !important;
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text-decoration: none;
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border-radius: 5px;
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margin: 20px 0;
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}}
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.footer {{ margin-top: 30px; font-size: 12px; color: #666; }}
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</style>
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</head>
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<body>
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<div class="container">
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<h2>{t['greeting']}</h2>
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<p>{t['intro']}</p>
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<a href="{full_url}" class="button">{t['button']}</a>
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<p>{t['or_copy']}</p>
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<p><a href="{full_url}">{full_url}</a></p>
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<p>{t['expires']}</p>
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<p>{t['ignore']}</p>
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<div class="footer">
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<p>{t['regards']}<br>{self.from_name}</p>
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</div>
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</div>
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</body>
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</html>
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"""
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return self.send_email(to_email, subject, body_html)
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def send_password_reset_email(
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self,
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to_email: str,
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reset_token: str,
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reset_url: str,
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username: str | None = None,
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language: str = 'ru',
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) -> bool:
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"""
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Send password reset email.
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Args:
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to_email: Recipient email address
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reset_token: Password reset token
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reset_url: Base URL for password reset (token will be appended)
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username: User's name for personalization
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language: Language code (ru, en, zh, ua)
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Returns:
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True if email was sent successfully, False otherwise
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"""
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full_url = f'{reset_url}?token={reset_token}'
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expire_hours = settings.get_cabinet_password_reset_expire_hours()
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# Localized content
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texts = {
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'ru': {
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'greeting': f'Здравствуйте{", " + username if username else ""}!',
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'subject': 'Сброс пароля',
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'intro': 'Мы получили запрос на сброс вашего пароля. Нажмите на кнопку ниже, чтобы установить новый пароль:',
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'button': 'Сбросить пароль',
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'or_copy': 'Или скопируйте и вставьте эту ссылку в браузер:',
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'expires': f'Ссылка действительна в течение {expire_hours} часов.',
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'warning': 'Если вы не запрашивали сброс пароля, проигнорируйте это письмо или свяжитесь с поддержкой.',
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'regards': 'С уважением,',
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},
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'en': {
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'greeting': f'Hello{", " + username if username else ""}!',
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'subject': 'Reset your password',
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'intro': 'We received a request to reset your password. Click the button below to set a new password:',
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'button': 'Reset Password',
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'or_copy': 'Or copy and paste this link in your browser:',
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'expires': f'This link will expire in {expire_hours} hour(s).',
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'warning': "If you didn't request a password reset, please ignore this email or contact support if you're concerned.",
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'regards': 'Best regards,',
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},
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'zh': {
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'greeting': f'您好{", " + username if username else ""}!',
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'subject': '重置您的密码',
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'intro': '我们收到了重置您密码的请求。点击下方按钮设置新密码：',
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'button': '重置密码',
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'or_copy': '或将此链接复制并粘贴到浏览器中：',
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'expires': f'此链接将在 {expire_hours} 小时后过期。',
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'warning': '如果您没有请求重置密码，请忽略此邮件或联系客服。',
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'regards': '此致,',
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},
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'ua': {
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'greeting': f'Вітаємо{", " + username if username else ""}!',
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'subject': 'Скидання пароля',
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'intro': 'Ми отримали запит на скидання вашого пароля. Натисніть на кнопку нижче, щоб встановити новий пароль:',
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'button': 'Скинути пароль',
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'or_copy': 'Або скопіюйте та вставте це посилання в браузер:',
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'expires': f'Посилання дійсне протягом {expire_hours} годин.',
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'warning': "Якщо ви не запитували скидання пароля, проігноруйте цей лист або зв'яжіться з підтримкою.",
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'regards': 'З повагою,',
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},
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}
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t = texts.get(language, texts['ru'])
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subject = t['subject']
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body_html = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<style>
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body {{ font-family: Arial, sans-serif; line-height: 1.6; color: #333; }}
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.container {{ max-width: 600px; margin: 0 auto; padding: 20px; }}
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.button {{
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display: inline-block;
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padding: 12px 24px;
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background-color: #dc3545;
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color: white !important;
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text-decoration: none;
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border-radius: 5px;
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margin: 20px 0;
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}}
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.footer {{ margin-top: 30px; font-size: 12px; color: #666; }}
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.warning {{ color: #dc3545; font-weight: bold; }}
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</style>
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</head>
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<body>
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<div class="container">
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<h2>{t['greeting']}</h2>
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<p>{t['intro']}</p>
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<a href="{full_url}" class="button">{t['button']}</a>
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<p>{t['or_copy']}</p>
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<p><a href="{full_url}">{full_url}</a></p>
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<p>{t['expires']}</p>
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<p class="warning">{t['warning']}</p>
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<div class="footer">
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<p>{t['regards']}<br>{self.from_name}</p>
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</div>
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</div>
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</body>
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</html>
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"""
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return self.send_email(to_email, subject, body_html)
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# Singleton instance
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email_service = EmailService()
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