mirror of
https://github.com/grillazz/fastapi-sqlalchemy-asyncpg.git
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81 lines
2.5 KiB
Python
81 lines
2.5 KiB
Python
from attrs import define, field
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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 as global_settings
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from fastapi.templating import Jinja2Templates
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from pydantic import EmailStr
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from app.utils.logging import AppLogger
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from app.utils.singleton import SingletonMetaNoArgs
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logger = AppLogger().get_logger()
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@define
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class SMTPEmailService(metaclass=SingletonMetaNoArgs):
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# SMTP configuration
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server_host: str = field(default=global_settings.smtp.server)
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server_port: int = field(default=global_settings.smtp.port)
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username: str = field(default=global_settings.smtp.username)
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password: str = field(default=global_settings.smtp.password)
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# Dependencies
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templates: Jinja2Templates = field(
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factory=lambda: Jinja2Templates(global_settings.templates_dir)
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)
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server: smtplib.SMTP = field(init=False) # Deferred initialization in post-init
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def __attrs_post_init__(self):
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"""Initialize the SMTP server connection after object creation."""
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self.server = smtplib.SMTP(self.server_host, self.server_port)
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self.server.starttls()
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self.server.login(self.username, self.password)
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def _prepare_email(
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self,
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sender: EmailStr,
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recipients: list[EmailStr],
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subject: str,
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body_text: str,
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body_html: str,
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) -> MIMEMultipart:
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"""Prepare the email message."""
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msg = MIMEMultipart()
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msg["From"] = sender
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msg["To"] = ",".join(recipients)
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msg["Subject"] = subject
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msg.attach(MIMEText(body_text, "plain"))
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if body_html:
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msg.attach(MIMEText(body_html, "html"))
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return msg
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def send_email(
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self,
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sender: EmailStr,
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recipients: list[EmailStr],
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subject: str,
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body_text: str = "",
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body_html: str = None,
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):
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"""Send a regular email (plain text or HTML)."""
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msg = self._prepare_email(sender, recipients, subject, body_text, body_html)
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self.server.sendmail(sender, recipients, msg.as_string())
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def send_template_email(
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self,
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recipients: list[EmailStr],
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subject: str,
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template: str,
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context: dict,
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sender: EmailStr,
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):
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"""Send an email using a template with the provided context."""
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template_str = self.templates.get_template(template)
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body_html = template_str.render(context)
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self.send_email(sender, recipients, subject, body_html=body_html)
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