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# -*- coding: utf-8 -*-
import subprocess
from email.mime.text import MIMEText
from email.utils import parseaddr
from jinja2.environment import TemplateModule
from . import Backend
def safe(s: str):
return s.split("\n", 1)[0]
class SendmailBackend(Backend):
def _send(self, recipient: str, content: TemplateModule):
msg = MIMEText(content.body(), _charset="utf-8") # type: ignore
msg["Subject"] = safe(content.subject()) # type: ignore
msg["To"] = safe(recipient)
msg["From"] = safe(content.sender()) # type: ignore
envelope = []
_, address = parseaddr(safe(content.sender())) # type: ignore
if address != "":
envelope = ["-f", address]
p = subprocess.Popen(
[self.app.config["SENDMAIL_COMMAND"]] + envelope + ["-t"],
stdin=subprocess.PIPE,
)
assert p.stdin
p.stdin.write(msg.as_string().encode("utf-8"))
p.stdin.close()
if p.wait() != 0:
raise RuntimeError("sendmail terminated with %d" % p.returncode)
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