Add an OPDS catalog

A reader app can browse the stored books by title, author and last
change, search them, and download them. The download and cover
routes share their code with the story page.

An admin turns the catalog on in the settings. The login follows
AUTH_METHOD: none needs no login, local and cwa take the account
login, and proxy takes the user name from the proxy with an OPDS
password that each user sets. The API key does not open the catalog.
This commit is contained in:
tim
2026-10-03 11:23:28 +02:00
parent ece59c2558
commit 28cd0dcde9
9 changed files with 1295 additions and 34 deletions
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"""The login of the OPDS catalog: the account login in the local and CWA modes, a password of its own in proxy mode."""
import base64
import io
import zipfile
import pytest
from test_api import H, login
from test_api import client as client
from test_api import cwa as cwa
from test_build import URL, metahtml
from test_opds import PATHS, add_book, enabled_catalog, entries, feed, links, no_site_requests
from werkzeug.security import generate_password_hash
from bindery import auth, config, opds, orchestrator, web
__all__ = ["enabled_catalog", "no_site_requests"] # fixtures that every test here uses
PASSWORD = "reader-password"
CHALLENGE = 'Basic realm="Bindery", charset="UTF-8"'
ACQUIRE = "http://opds-spec.org/acquisition"
GATED = [*PATHS, "/opds/search?q=a", "/opds/search.xml", "/opds/books/1.epub", "/opds/books/1/cover"]
OTHER_LOGINS = [
{"Authorization": "Bearer api-secret"},
{"X-Api-Key": "api-secret"},
{"X-Remote-User": "admin"},
]
def basic(password, user="reader"):
return {"Authorization": "Basic " + base64.b64encode(f"{user}:{password}".encode()).decode()}
def set_password(password=PASSWORD, user="reader"):
hashed = generate_password_hash(password, method="pbkdf2:sha256:1000")
orchestrator.store.set_setting(None, orchestrator._opds_password_name(user), hashed)
def fresh_lockout(monkeypatch):
monkeypatch.setattr(auth, "limiter", auth.LoginLimiter())
@pytest.fixture
def proxy(monkeypatch):
monkeypatch.setattr(config, "AUTH_METHOD", "proxy")
monkeypatch.setattr(config, "PROXY_AUTH_TRUSTED_IPS", ["127.0.0.1"])
monkeypatch.setattr(config, "API_KEY", "api-secret")
set_password()
@pytest.fixture
def local(monkeypatch):
monkeypatch.setattr(config, "AUTH_METHOD", "local")
monkeypatch.setattr(config, "LOCAL_USERNAME", "reader")
monkeypatch.setattr(config, "LOCAL_PASSWORD_HASH", generate_password_hash("web-pw", method="pbkdf2:sha256:1000"))
monkeypatch.setattr(config, "API_KEY", "api-secret")
set_password() # an OPDS password does not apply here
def test_proxy_mode_takes_the_proxy_user_name_with_the_password_of_that_user(client, proxy, monkeypatch):
add_book()
set_password("alice-password", "alice")
for path in GATED:
response = client.get(path)
assert response.status_code == 401
assert response.headers["WWW-Authenticate"] == CHALLENGE
for path in PATHS:
response = client.get(path, headers=basic(PASSWORD, "reader"))
feed(response)
assert "Set-Cookie" not in response.headers
assert client.get("/opds/search.xml", headers=basic("alice-password", "alice")).status_code == 200
# The user name matches without regard to case and spaces. Each user has their own password.
assert client.get("/opds", headers=basic(PASSWORD, " READER ")).status_code == 200
for headers in [
basic(PASSWORD, "alice"),
basic("alice-password", "reader"),
basic(PASSWORD, "nobody"),
basic(PASSWORD, ""),
*OTHER_LOGINS,
basic("api-secret"),
{**OTHER_LOGINS[2], **basic("wrong")},
{"X-Remote-User": "alice", **basic(PASSWORD, "nobody")},
]:
fresh_lockout(monkeypatch)
for path in PATHS[:3]:
assert client.get(path, headers=headers).status_code == 401
def test_the_catalog_password_does_not_open_the_api(client, proxy):
for headers in (basic(PASSWORD), {"Authorization": f"Bearer {PASSWORD}"}, {"X-Api-Key": PASSWORD}):
response = client.get("/api/stories", headers=headers)
assert response.status_code == 401
assert "WWW-Authenticate" not in response.headers
assert client.get("/api/stories", headers={"X-Api-Key": "api-secret"}).status_code == 200
assert client.post("/api/stories", json={"urls": []}, headers={**H, **basic(PASSWORD)}).status_code == 401
def test_a_user_without_a_password_meets_the_same_work_as_one_with_a_password(client, proxy, monkeypatch):
calls = []
real = auth.check_password_hash
monkeypatch.setattr(auth, "check_password_hash", lambda *args: calls.append(args[0]) or real(*args))
for user in ("nobody", "reader"):
calls.clear()
response = client.get("/opds", headers=basic("wrong-password", user))
assert response.status_code == 401
assert response.json == {"error": "Unauthorized"}
assert len(calls) == 1
def test_local_mode_takes_the_account_login(client, local, monkeypatch):
for path in GATED:
response = client.get(path)
assert response.status_code == 401
assert response.headers["WWW-Authenticate"] == CHALLENGE
assert response.json["error"] == "Unauthorized"
for path in PATHS:
response = client.get(path, headers=basic("web-pw"))
feed(response)
assert "Set-Cookie" not in response.headers
for headers in [basic(PASSWORD), basic("web-pw", "other"), basic("wrong"), *OTHER_LOGINS]:
fresh_lockout(monkeypatch)
assert client.get("/opds", headers=headers).status_code == 401
assert client.get("/opds", headers=basic("web-pw", " reader ")).status_code == 200
def test_local_mode_takes_the_web_session_but_not_the_api_key_with_it(client, local):
assert client.get("/opds").status_code == 401
assert login(client, password="web-pw").status_code == 200
for path in PATHS:
feed(client.get(path))
assert client.get("/opds", headers={"X-Api-Key": "api-secret"}).status_code == 200 # the session counts
client.post("/api/auth/logout", headers=H)
assert client.get("/opds").status_code == 401
assert client.get("/opds", headers={"X-Api-Key": "api-secret"}).status_code == 401
def test_cwa_mode_takes_the_cwa_login(client, cwa, monkeypatch):
monkeypatch.setattr(config, "API_KEY", "api-secret")
set_password()
assert client.get("/opds").status_code == 401
assert client.get("/opds", headers=basic("pw")).status_code == 200
for headers in [basic("wrong"), basic("pw", "other"), basic(PASSWORD), *OTHER_LOGINS]:
fresh_lockout(monkeypatch)
assert client.get("/opds", headers=headers).status_code == 401
assert login(client).status_code == 200
feed(client.get("/opds/title"))
client.post("/api/auth/logout", headers=H)
monkeypatch.setattr(config, "CWA_ALLOWED_USERS", ["someone"])
assert client.get("/opds", headers=basic("pw")).status_code == 401
def test_none_mode_needs_no_login(client):
assert orchestrator.store.get_setting(None, "opds_password_hash") is None
for path in PATHS:
feed(client.get(path))
set_password()
feed(client.get("/opds"))
def test_a_good_account_login_is_kept_for_five_minutes(client, local, monkeypatch):
clock = [1000.0]
monkeypatch.setattr(auth.time, "monotonic", lambda: clock[0])
calls = []
real = auth.login_local
monkeypatch.setattr(auth, "login_local", lambda *args: calls.append(args) or real(*args))
for seconds in (0, auth.KEPT_SECONDS - 1, 1):
clock[0] += seconds
assert client.get("/opds", headers=basic("web-pw")).status_code == 200
assert len(calls) == 2
# A wrong password is never kept. A new web password ends a kept login.
assert client.get("/opds", headers=basic("wrong")).status_code == 401
assert client.get("/opds", headers=basic("wrong")).status_code == 401
assert len(calls) == 4
monkeypatch.setattr(config, "LOCAL_PASSWORD_HASH", generate_password_hash("new-pw", method="pbkdf2:sha256:1000"))
assert client.get("/opds", headers=basic("web-pw")).status_code == 401
assert client.get("/opds", headers=basic("new-pw")).status_code == 200
def test_a_good_catalog_password_is_kept_and_a_new_password_ends_it(client, proxy, monkeypatch):
calls = []
real = auth.check_password_hash
monkeypatch.setattr(auth, "check_password_hash", lambda *args: calls.append(args) or real(*args))
for _ in range(3):
assert client.get("/opds", headers=basic(PASSWORD)).status_code == 200
assert len(calls) == 1
set_password("a new password")
assert client.get("/opds", headers=basic(PASSWORD)).status_code == 401
assert client.get("/opds", headers=basic("a new password")).status_code == 200
def test_a_disabled_catalog_answers_404_before_any_login(client, proxy):
orchestrator.store.set_setting(None, "opds_enabled", False)
for headers in ({}, basic(PASSWORD), basic("wrong")):
assert client.get("/opds", headers=headers).status_code == 404
def test_wrong_catalog_passwords_lock_out_a_user_at_an_address(client, proxy):
set_password("alice-password", "alice")
for _ in range(auth.MAX_FAILURES):
assert client.get("/opds", headers=basic("wrong")).status_code == 401
assert client.get("/opds", headers=basic(PASSWORD)).status_code == 401
# Another user at that address, and the same user at another address, can log in.
assert client.get("/opds", headers=basic("alice-password", "alice")).status_code == 200
other = {"environ_base": {"REMOTE_ADDR": "198.51.100.7"}}
assert client.get("/opds", headers=basic(PASSWORD), **other).status_code == 200
def test_wrong_account_passwords_lock_out_an_address(client, local):
for _ in range(auth.MAX_FAILURES):
assert client.get("/opds", headers=basic("wrong")).status_code == 401
assert client.get("/opds", headers=basic("web-pw")).status_code == 401
assert client.get("/opds", headers=basic("web-pw"), environ_base={"REMOTE_ADDR": "198.51.100.7"}).status_code == 200
@pytest.mark.parametrize(
"value",
["Basic", "Basic !!!", "Digest cmVhZGVyOnB3", basic("")["Authorization"], basic("x" * 257)["Authorization"]]
+ ["Basic " + base64.b64encode(text).decode() for text in (b"reader", b"\xff:pw")],
)
def test_bad_basic_headers(client, proxy, monkeypatch, value):
def fail(*args):
pytest.fail("A bad header must not reach the hash")
monkeypatch.setattr(auth, "check_password_hash", fail)
assert client.get("/opds", headers={"Authorization": value}).status_code == 401
def test_bad_config_fails_closed(client, monkeypatch):
set_password()
monkeypatch.setattr(config, "AUTH_METHOD", "invalid")
for path in PATHS:
assert client.get(path, headers=basic(PASSWORD)).status_code == 503
def test_host_protection(client):
assert client.get("/opds", base_url="http://attacker.example").status_code == 400
def test_url_base_and_download_auth(client, proxy, monkeypatch, tmp_path):
monkeypatch.setattr(web.app, "wsgi_app", web.PrefixMiddleware(web.app.wsgi_app, "/bindery"))
monkeypatch.setattr(opds, "PAGE_SIZE", 1)
sid = add_book()
add_book("Second")
headers = basic(PASSWORD)
root = feed(client.get("/bindery/opds", headers=headers))
for entry in entries(root):
books = feed(client.get(links(entry)["subsection"], headers=headers))
assert all(href.startswith("/bindery/") for href in links(books).values())
if entry.find("a:link", {"a": opds.ATOM}).attrib["type"] == opds.ACQUISITION:
assert client.get(links(books)["next"], headers=headers).status_code == 200
books = feed(client.get("/bindery/opds/title", headers=headers))
download = links(entries(books)[0])[ACQUIRE]
assert download == f"/bindery/opds/books/{sid}.epub"
assert client.get(download).status_code == 401
assert client.get(download, headers=basic("wrong")).status_code == 401
file = tmp_path / "book.epub"
file.write_bytes(b"epub bytes")
monkeypatch.setattr(orchestrator, "build_for_download", lambda story_id: (file.open("rb"), "book.epub"))
with client.get(download, headers=headers) as response:
assert response.data == b"epub bytes"
assert response.mimetype == "application/epub+zip"
assert client.get("/opds", headers=headers).status_code == 404
def test_download_builds_from_store_without_changing_chapters(client, local, monkeypatch, tmp_path):
monkeypatch.setattr(config, "TMP_DIR", tmp_path)
sid = add_book(url=URL)
orchestrator.store.update_story(sid, metahtml=metahtml())
before = orchestrator.store.chapters_for_build(sid)
root = feed(client.get("/opds/title", headers=basic("web-pw")))
with client.get(links(entries(root)[0])[ACQUIRE], headers=basic("web-pw")) as response:
assert response.status_code == 200
assert response.mimetype == "application/epub+zip"
with zipfile.ZipFile(io.BytesIO(response.data)) as epub:
assert epub.read("mimetype") == b"application/epub+zip"
assert orchestrator.store.chapters_for_build(sid) == before
def test_the_catalog_takes_no_changes(client, proxy):
assert client.post("/opds", headers=basic(PASSWORD)).status_code == 405
def test_an_opds_download_is_named_by_the_download_template(client, local, monkeypatch, tmp_path):
monkeypatch.setattr(config, "TMP_DIR", tmp_path)
sid = add_book(url=URL, meta={"title": "The Book", "authors": ["Ann Writer"]})
orchestrator.store.update_story(sid, metahtml=metahtml())
root = feed(client.get("/opds/title", headers=basic("web-pw")))
href = links(entries(root)[0])[ACQUIRE]
def disposition():
with client.get(href, headers=basic("web-pw")) as response:
assert response.status_code == 200
return response.headers["Content-Disposition"]
assert 'filename="Book, The - Ann Writer.epub"' in disposition()
orchestrator.store.set_setting(None, "download_template", "{title} - {authors}")
assert 'filename="The Book - Ann Writer.epub"' in disposition()
def test_forget_clears_the_wrong_passwords_of_one_user_from_every_address():
limiter = auth.LoginLimiter()
for address in ("10.0.0.1", "10.0.0.2"):
for _ in range(auth.MAX_FAILURES):
limiter.failed("Alice", address)
limiter.failed("bob", address)
limiter.forget("ALICE")
assert not limiter.locked("alice", "10.0.0.1")
assert not limiter.locked("alice", "10.0.0.2")
assert limiter.locked("bob", "10.0.0.1")
def test_setting_a_password_ends_the_lockout_of_that_user(client, proxy):
set_password("bob-password", "bob")
far = {"environ_base": {"REMOTE_ADDR": "198.51.100.7"}}
# A user without a password tries from two addresses, and meets the lockout.
for kwargs in ({}, far):
for _ in range(auth.MAX_FAILURES):
assert client.get("/opds", headers=basic("guess", "alice"), **kwargs).status_code == 401
for _ in range(auth.MAX_FAILURES):
assert client.get("/opds", headers=basic("guess", "bob")).status_code == 401
assert client.get("/opds", headers=basic("alice-password", "alice")).status_code == 401
saved = client.put(
"/api/settings/opds-password", json={"password": "alice-password"}, headers={**H, "X-Remote-User": "Alice"}
)
assert saved.status_code == 200
for kwargs in ({}, far):
assert client.get("/opds", headers=basic("alice-password", "alice"), **kwargs).status_code == 200
# The lockout of another user stays.
assert client.get("/opds", headers=basic("bob-password", "bob")).status_code == 401