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import smtplib
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import ssl
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from email.mime.text import MIMEText
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from email.mime.multipart import MIMEMultipart
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from email.template import Template
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import logging
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class EmailService:
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def __init__(self, smtp_server="smtp.gmail.com", smtp_port=587):
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self.smtp_server = smtp_server
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self.smtp_port = smtp_port
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self.username = None
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self.password = None
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self.logger = logging.getLogger(__name__)
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def configure_smtp(self, username, password):
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"""Configure SMTP credentials"""
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self.username = username
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self.password = password
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def send_password_reset_email(self, recipient_email, reset_token):
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"""Send password reset email to user"""
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try:
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message = MIMEMultipart("alternative")
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message["Subject"] = "Password Reset Request"
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message["From"] = self.username
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message["To"] = recipient_email
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html_content = self._generate_reset_email_html(reset_token)
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html_part = MIMEText(html_content, "html")
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message.attach(html_part)
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return self._send_email(message)
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except Exception as e:
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self.logger.error(f"Error sending password reset email: {str(e)}")
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return False, f"Failed to send email: {str(e)}"
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def send_notification_email(self, recipient_email, subject, content):
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"""Send general notification email"""
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try:
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message = MIMEMultipart()
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message["Subject"] = subject
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message["From"] = self.username
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message["To"] = recipient_email
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text_part = MIMEText(content, "plain")
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message.attach(text_part)
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return self._send_email(message)
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except Exception as e:
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self.logger.error(f"Error sending notification email: {str(e)}")
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return False, f"Failed to send email: {str(e)}"
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def _send_email(self, message):
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"""Internal method to send email via SMTP"""
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try:
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context = ssl.create_default_context()
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with smtplib.SMTP(self.smtp_server, self.smtp_port) as server:
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server.starttls(context=context)
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if not self.username or not self.password:
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raise Exception("SMTP credentials not configured")
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server.login(self.username, self.password)
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text = message.as_string()
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server.sendmail(message["From"], message["To"], text)
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self.logger.info(f"Email sent successfully to {message['To']}")
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return True, "Email sent successfully"
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except smtplib.SMTPAuthenticationError:
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error_msg = "SMTP authentication failed - check credentials"
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self.logger.error(error_msg)
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return False, error_msg
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except smtplib.SMTPConnectError:
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error_msg = "Failed to connect to SMTP server"
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self.logger.error(error_msg)
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return False, error_msg
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except Exception as e:
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error_msg = f"Unexpected error sending email: {str(e)}"
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self.logger.error(error_msg)
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return False, error_msg
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def _generate_reset_email_html(self, reset_token):
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"""Generate HTML content for password reset email"""
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html_template = """
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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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<title>Password Reset</title>
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</head>
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<body>
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<div style="max-width: 600px; margin: 0 auto; padding: 20px;">
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<h2>Password Reset Request</h2>
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<p>You have requested a password reset for your account.</p>
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<p>Click the link below to reset your password:</p>
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<a href="https://yourapp.com/reset-password?token={token}"
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style="background-color: #4CAF50; color: white; padding: 10px 20px;
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text-decoration: none; border-radius: 4px;">
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Reset Password
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</a>
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<p>If you did not request this reset, please ignore this email.</p>
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<p>This link will expire in 24 hours.</p>
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</div>
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</body>
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</html>
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"""
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return html_template.format(token=reset_token)
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def test_connection(self):
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"""Test SMTP connection and configuration"""
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try:
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context = ssl.create_default_context()
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with smtplib.SMTP(self.smtp_server, self.smtp_port) as server:
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server.starttls(context=context)
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if self.username and self.password:
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server.login(self.username, self.password)
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return True, "SMTP connection successful"
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except Exception as e:
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return False, f"SMTP connection failed: {str(e)}" |
