feat: add authenticated qbittorrent reader

tests/test_qbittorrent.py

@@ -0,0 +1,76 @@
+import hashlib
+import io
+import json
+import os
+import tempfile
+import unittest
+from pathlib import Path, PurePosixPath
+from unittest.mock import patch
+
+from archive_clients.bencode import encode
+from archive_clients.config import ServiceConfig
+from archive_clients.qbittorrent import QBittorrentReader
+
+
+class _Response:
+    def __init__(self, value: bytes):
+        self.value = io.BytesIO(value)
+
+    def read(self, size=-1):
+        return self.value.read(size)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *_):
+        return None
+
+
+class _Opener:
+    def __init__(self, values):
+        self.values = iter(values)
+        self.calls = []
+
+    def open(self, call, timeout):
+        self.calls.append(call)
+        return _Response(next(self.values))
+
+
+class QBittorrentReaderTests(unittest.TestCase):
+    def test_hash_scoped_lookup_exports_and_normalizes(self):
+        info = {
+            b"length": 3, b"name": b"a.txt", b"piece length": 16384,
+            b"pieces": b"x" * 20,
+        }
+        torrent_bytes = encode({b"info": info})
+        torrent_hash = hashlib.sha1(encode(info)).hexdigest()
+        responses = [
+            b"Ok.",
+            json.dumps([{
+                "hash": torrent_hash, "name": "a.txt", "state": "uploading",
+            }]).encode(),
+            b'[{"index":0,"name":"a.txt","size":3,"progress":1,"priority":1}]',
+            torrent_bytes,
+        ]
+        with tempfile.TemporaryDirectory() as directory:
+            root = Path(directory)
+            password = root / "password"
+            password.write_text("secret", encoding="utf-8")
+            os.chmod(password, 0o600)
+            config = ServiceConfig(
+                "http://qb", PurePosixPath("/downloads"), root,
+                username="admin", password_file=password,
+            )
+            opener = _Opener(responses)
+            with patch(
+                "archive_clients.qbittorrent.request.build_opener",
+                return_value=opener,
+            ):
+                resource = QBittorrentReader(config).get_resource(torrent_hash)
+        self.assertIsNotNone(resource)
+        self.assertEqual(resource.summary.resource_id.info_hash_v1_hex, torrent_hash)
+        self.assertIn("hashes=", opener.calls[1])
+
+
+if __name__ == "__main__":
+    unittest.main()