109 lines
4.5 KiB
Python
109 lines
4.5 KiB
Python
import smtplib
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from html import escape
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from email.message import EmailMessage
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from email.utils import formatdate, make_msgid
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from config import Config
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def build_from_header(from_email: str, from_name: str | None = None) -> str:
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if from_name:
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return f"{from_name} <{from_email}>"
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return from_email
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def force_https_url(url: str) -> str:
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if url.startswith("http://"):
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return "https://" + url[len("http://"):]
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return url
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def build_invite_email(
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username: str,
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invite_url: str,
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expiry_text: str,
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group_name: str | None = None,
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role_name: str | None = None,
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) -> tuple[str, str]:
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safe_user = escape(username)
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safe_url = escape(invite_url)
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safe_expiry = escape(expiry_text)
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safe_group = escape(group_name) if group_name else None
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safe_role = escape(role_name) if role_name else None
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if safe_group:
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role_part = f" as <strong>{safe_role}</strong>" if safe_role else ""
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intro_html = (
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f"You have been invited to join the group <strong>{safe_group}</strong> "
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f"on MCLogger{role_part}."
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)
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role_text = f" as {role_name}" if role_name else ""
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intro_text = f"You have been invited to join the group '{group_name}' on MCLogger{role_text}."
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else:
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intro_html = "You have been invited to create an account on <strong>MCLogger</strong>."
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intro_text = "You have been invited to create an account on MCLogger."
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text_body = (
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f"Hello {username},\n\n"
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f"{intro_text}\n"
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f"Open this link to create your account:\n\n{invite_url}\n\n"
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f"This invite expires {expiry_text}.\n"
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)
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html_body = f"""
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<!doctype html>
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<html>
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<body style="margin:0;padding:0;background:#f6f8fb;font-family:Arial,Helvetica,sans-serif;color:#1f2937;">
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<table role="presentation" width="100%" cellspacing="0" cellpadding="0" style="padding:24px 12px;">
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<tr>
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<td align="center">
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<table role="presentation" width="100%" cellspacing="0" cellpadding="0" style="max-width:620px;background:#ffffff;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;">
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<tr>
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<td style="background:#111827;color:#ffffff;padding:16px 20px;font-size:18px;font-weight:700;">
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MCLogger Invitation
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</td>
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</tr>
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<tr>
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<td style="padding:24px 20px 20px 20px;font-size:14px;line-height:1.6;">
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<p style="margin:0 0 12px 0;">Hello <strong>{safe_user}</strong>,</p>
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<p style="margin:0 0 12px 0;">{intro_html}</p>
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<p style="margin:0 0 20px 0;">Click the button below to create your account:</p>
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<p style="margin:0 0 20px 0;">
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<a href="{safe_url}" style="display:inline-block;background:#2563eb;color:#ffffff;text-decoration:none;font-weight:700;padding:11px 16px;border-radius:8px;">Create Account</a>
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</p>
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<p style="margin:0 0 12px 0;">This invite expires <strong>{safe_expiry}</strong>.</p>
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<p style="margin:16px 0 0 0;font-size:12px;color:#6b7280;word-break:break-all;">If the button does not work, use this link:<br>{safe_url}</p>
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</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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</body>
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</html>
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""".strip()
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return text_body, html_body
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def send_mail(settings: dict, recipient: str, subject: str, text_body: str, html_body: str | None = None):
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msg = EmailMessage()
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msg["Subject"] = subject
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msg["From"] = build_from_header(settings["from_email"], settings.get("from_name"))
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msg["To"] = recipient
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msg["Date"] = formatdate(localtime=True)
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sender_domain = (settings.get("from_email", "noreply@example.com").split("@")[-1] or "example.com")
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msg["Message-ID"] = make_msgid(domain=sender_domain)
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msg.set_content(text_body)
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if html_body:
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msg.add_alternative(html_body, subtype="html")
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with smtplib.SMTP(settings["host"], settings["port"], timeout=Config.MAIL_TIMEOUT) as smtp:
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smtp.ehlo()
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if settings.get("use_tls", True):
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smtp.starttls()
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smtp.ehlo()
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smtp.login(settings["username"], settings["password"])
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smtp.send_message(msg)
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