import smtplib
import pytest


def test_remote(remote, imap_or_smtp):
    lineproducer = remote.iter_output(imap_or_smtp.logcmd)
    imap_or_smtp.connect()
    assert imap_or_smtp.name in next(lineproducer)


def test_use_two_chatmailservers(cmfactory, maildomain2):
    ac1 = cmfactory.new_online_configuring_account(cache=False)
    cmfactory.switch_maildomain(maildomain2)
    ac2 = cmfactory.new_online_configuring_account(cache=False)
    cmfactory.bring_accounts_online()
    cmfactory.get_accepted_chat(ac1, ac2)
    domain1 = ac1.get_config("addr").split("@")[1]
    domain2 = ac2.get_config("addr").split("@")[1]
    assert domain1 != domain2


@pytest.mark.parametrize("forgeaddr", ["internal", "someone@example.org"])
def test_reject_forged_from(cmsetup, maildata, lp, forgeaddr):
    user1, user3 = cmsetup.gen_users(2)

    lp.sec("send encrypted message with forged from")
    print("envelope_from", user1.addr)
    if forgeaddr == "internal":
        addr_to_forge = cmsetup.gen_users(1)[0].addr
    else:
        addr_to_forge = "someone@example.org"

    print("message to inject:")
    msg = maildata("encrypted.eml", from_addr=addr_to_forge, to_addr=user3.addr)
    msg = msg.as_string()
    for line in msg.split("\n")[:4]:
        print(f"   {line}")

    lp.sec("Send forged mail and check remote postfix lmtp processing result")
    with pytest.raises(smtplib.SMTPException) as e:
        user1.smtp.sendmail(from_addr=user1.addr, to_addrs=[user3.addr], msg=msg)
    assert "500" in str(e.value)


@pytest.mark.slow
def test_exceed_rate_limit(cmsetup, gencreds, maildata):
    """Test that the per-account send-mail limit is exceeded."""
    user1, user2 = cmsetup.gen_users(2)
    mail = maildata(
        "encrypted.eml", from_addr=user1.addr, to_addr=user2.addr
    ).as_string()
    for i in range(100):
        print("Sending mail", str(i))
        try:
            user1.smtp.sendmail(user1.addr, [user2.addr], mail)
        except smtplib.SMTPException as e:
            if i < 80:
                pytest.fail(f"rate limit was exceeded too early with msg {i}")
            outcome = e.recipients[user2.addr]
            assert outcome[0] == 450
            assert b"4.7.1: Too much mail from" in outcome[1]
            return
    pytest.fail("Rate limit was not exceeded")