forked from Github-Mirrors/canaille
105 lines
3.3 KiB
Python
105 lines
3.3 KiB
Python
import email.message
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import mimetypes
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import smtplib
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import urllib.request
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from email.utils import make_msgid
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from flask import current_app
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from flask import request
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from canaille.app import get_current_domain
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from canaille.app import get_current_mail_domain
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def logo():
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logo_url = current_app.config["CANAILLE"]["LOGO"]
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if not logo_url:
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return None, None, None
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logo_filename = logo_url.split("/")[-1]
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if not logo_url.startswith("http"):
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if current_app.config.get("SERVER_NAME"):
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logo_url = "{}://{}/{}".format(
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current_app.config.get("PREFERRED_URL_SCHEME"),
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get_current_domain(),
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logo_url,
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)
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else:
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logo_url = f"{request.url_root}{logo_url}"
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try:
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with urllib.request.urlopen(logo_url) as f:
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logo_raw = f.read()
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except (urllib.error.HTTPError, urllib.error.URLError):
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logo_filename = None
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logo_raw = None
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logo_cid = make_msgid(domain=get_current_mail_domain())
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return logo_cid, logo_filename, logo_raw
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def type_from_filename(filename):
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filetype = mimetypes.guess_type(filename)
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if not filetype or not filetype[0]:
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# For some reasons GHA fails to guess webp mimetypes
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# According to MDN, the default mimetype should be application/octet-stream
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# https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
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return "application", "octet-stream"
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maintype, subtype = filetype[0].split("/")
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return maintype, subtype
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def send_email(subject, recipient, text, html, attachments=None):
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current_app.logger.debug(f"Sending a mail to {recipient}: {subject}")
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msg = email.message.EmailMessage()
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msg.set_content(text)
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msg.add_alternative(html, subtype="html")
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msg["Subject"] = subject
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msg["To"] = f"<{recipient}>"
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name = current_app.config["CANAILLE"]["NAME"]
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address = current_app.config["CANAILLE"]["SMTP"]["FROM_ADDR"]
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if not address:
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domain = get_current_mail_domain()
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address = f"admin@{domain}"
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msg["From"] = f'"{name}" <{address}>'
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attachments = attachments or []
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for cid, filename, value in attachments:
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maintype, subtype = type_from_filename(filename)
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msg.get_payload()[1].add_related(
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value, maintype=maintype, subtype=subtype, cid=cid
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)
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smtp = None
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try:
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connection_func = (
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smtplib.SMTP_SSL
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if current_app.config["CANAILLE"]["SMTP"]["SSL"]
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else smtplib.SMTP
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)
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with connection_func(
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host=current_app.config["CANAILLE"]["SMTP"]["HOST"],
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port=current_app.config["CANAILLE"]["SMTP"]["PORT"],
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) as smtp:
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if current_app.config["CANAILLE"]["SMTP"]["TLS"]:
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smtp.starttls()
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if current_app.config["CANAILLE"]["SMTP"]["LOGIN"]:
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smtp.login(
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user=current_app.config["CANAILLE"]["SMTP"]["LOGIN"],
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password=current_app.config["CANAILLE"]["SMTP"]["PASSWORD"],
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)
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smtp.send_message(msg)
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except smtplib.SMTPRecipientsRefused:
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pass
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except OSError as exc:
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current_app.logger.warning(f"Could not send email: {exc}")
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return False
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return True
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