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FabledSteward/tests/core/test_password_resets.py
bvandeusenandClaude Opus 5.5 593b583d23
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feat(auth): reset a forgotten password from an emailed link (milestone 497)
Step #5429 "Reset by email: request, link and new-password page" of
milestone 497 "Passwords: change your own, and reset it by email".

- Sign-in page: "Forgot your password?" while a mail server is set.
- /forgot takes a username or email and answers the same either way; only
  an active local account with a real address gets mail. Requests count
  per address on their own throttle, so they never lock out sign-in.
- password_resets (migration 0039): a one-time key, stored as its sha256,
  working for an hour; asking again replaces it.
- /reset/<key>: the new password, then signed straight in; every other
  browser is signed out (sessions_since). Bad keys count as invite keys do.
- Email "[Steward] Reset your password", in the account's own zone.
- Audited: user.password_reset_requested, user.password_reset_by_email.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 20:17:24 -04:00

38 lines
1.7 KiB
Python

"""Reset a password by email (milestone 497): a link's states, where it
points, and the email that carries it."""
import re
from datetime import datetime, timedelta, timezone
from zoneinfo import ZoneInfo
from steward.core import mail, password_resets
from steward.models.password_resets import PasswordReset
NOW = datetime(2026, 10, 9, 12, 0, tzinfo=timezone.utc)
def _reset(**kw):
return PasswordReset(**({"user_id": "u", "key_hash": "x", "created_at": NOW,
"expires_at": NOW + password_resets.LIFETIME} | kw))
def test_a_link_works_for_an_hour_and_once():
assert password_resets.LIFETIME == timedelta(hours=1)
assert password_resets.state(_reset(), NOW + timedelta(minutes=59)) == "pending"
assert password_resets.state(_reset(), NOW + timedelta(hours=1)) == "expired"
assert password_resets.state(_reset(used_at=NOW), NOW) == "used"
def test_the_link_carries_the_key_under_steward_s_address():
assert password_resets.link("https://steward.example/", "abc") == "https://steward.example/reset/abc"
def test_the_reset_email_names_the_account_the_deadline_and_what_to_do_if_unasked():
url = "https://steward.example/reset/KEY123"
subject, text, html = mail.reset_email("ann <x>", NOW + timedelta(hours=1), url, ZoneInfo("Europe/London"))
assert subject == "[Steward] Reset your password"
for part in (text, html):
assert url in part and "Fri 9 Oct 2026 14:00 BST" in part
assert "your password is unchanged" in part and "UTC" not in part
assert "ann &lt;x&gt;" in html and "<x>" not in html
assert all(u.startswith("https://steward.example") for u in re.findall(r"""https?://[^\s"'<>)]+""", html))