Add share token support with virtual filesystem and selection toolbar button

tests/test_files_auth.py

@@ -106,16 +106,38 @@ def setup_storage(tmp_path: Path):
     user = config.User()
     auth.set_password(user, "secret")
     token = config.Token(key="test_token_123", username="alice")
+    share_ro = config.Token(
+        key="share_ro_123",
+        username="alice",
+        kind="share",
+        mode="ro",
+        share_paths=["hello.txt", "docs"],
+    )
+    share_rw = config.Token(
+        key="share_rw_123",
+        username="alice",
+        kind="share",
+        mode="rw",
+        share_paths=["docs"],
+    )
     config.config = config.Config(
         path=tmp_path,
         listen=":0",
         public=False,
         users={"alice": user},
-        tokens={"test_token_123": token},
+        tokens={
+            "test_token_123": token,
+            "share_ro_123": share_ro,
+            "share_rw_123": share_rw,
+        },
     )
     watching.state.root = []
     watching.rootpath = tmp_path
     (tmp_path / "hello.txt").write_text("hello", encoding="utf-8")
+    (tmp_path / "secret.txt").write_text("secret", encoding="utf-8")
+    (tmp_path / "docs").mkdir()
+    (tmp_path / "docs" / "a.txt").write_text("A", encoding="utf-8")
+    (tmp_path / "docs" / "b.txt").write_text("B", encoding="utf-8")
     yield tmp_path
     watching.state.root = []
 
@@ -222,3 +244,49 @@ async def test_ntlm_auth_with_token(client):
     )
     assert res3.status_code == 200
     assert res3.body == b"hello"
+
+
+@pytest.mark.asyncio
+async def test_share_token_limits_visible_paths(client):
+    _, res = await client.get(
+        "/files/docs/a.txt", headers=_basic_auth("token", "share_ro_123")
+    )
+    assert res.status_code == 200
+    assert res.body == b"A"
+
+    _, res = await client.get(
+        "/files/hello.txt", headers=_basic_auth("token", "share_ro_123")
+    )
+    assert res.status_code == 200
+    assert res.body == b"hello"
+
+    _, res = await client.get(
+        "/files/secret.txt", headers=_basic_auth("token", "share_ro_123")
+    )
+    assert res.status_code == 404
+
+
+@pytest.mark.asyncio
+async def test_share_token_read_only_blocks_writes(client):
+    _, res = await client.delete(
+        "/files/hello.txt", headers=_basic_auth("token", "share_ro_123")
+    )
+    assert res.status_code == 403
+
+
+@pytest.mark.asyncio
+async def test_share_token_rw_allows_writes_in_scope_only(client):
+    _, res = await client.delete(
+        "/files/docs/a.txt", headers=_basic_auth("token", "share_rw_123")
+    )
+    assert res.status_code == 204
+
+    _, res = await client.get(
+        "/files/docs/a.txt", headers=_basic_auth("token", "share_rw_123")
+    )
+    assert res.status_code == 404
+
+    _, res = await client.delete(
+        "/files/secret.txt", headers=_basic_auth("token", "share_rw_123")
+    )
+    assert res.status_code == 404

tests/test_tokens.py

@@ -7,6 +7,7 @@ import pytest_asyncio
 from sanic import Sanic
 
 from cista import auth, config, watching
+from cista.api import bp as api_bp
 from cista.auth import bp as auth_bp
 
 
@@ -41,6 +42,9 @@ def setup_storage(tmp_path: Path):
     _persist_config()
     watching.state.root = []
     watching.rootpath = tmp_path
+    (tmp_path / "hello.txt").write_text("hello", encoding="utf-8")
+    (tmp_path / "docs").mkdir()
+    (tmp_path / "docs" / "a.txt").write_text("A", encoding="utf-8")
     yield tmp_path
     watching.state.root = []
 
@@ -56,6 +60,7 @@ async def client(setup_storage: Path):
         "PROPFIND",
     )
     app.blueprint(auth_bp)
+    app.blueprint(api_bp)
     yield app.asgi_client
 
 
@@ -189,3 +194,27 @@ async def test_token_user_scoped(client):
     # Actually the token key lookup will fail, and since there's no session fallback...
     # With auth header present but invalid, it should return 401
     assert res.status_code == 401
+
+
+@pytest.mark.asyncio
+async def test_create_share_token(client):
+    _, res = await client.post(
+        "/api/share-tokens",
+        json={"paths": ["hello.txt", "docs"], "mode": "ro", "name": "selection"},
+        headers={"Authorization": _basic_auth("alice", "secret")},
+    )
+    assert res.status_code == 200
+    data = res.json
+    assert data["kind"] == "share"
+    assert data["mode"] == "ro"
+    assert data["paths"] == ["hello.txt", "docs"]
+    assert "token:" in data["url"]
+
+    _, res = await client.get(
+        "/auth/tokens",
+        headers={"Authorization": _basic_auth("alice", "secret")},
+    )
+    assert res.status_code == 200
+    share_tokens = [t for t in res.json["tokens"] if t.get("kind") == "share"]
+    assert len(share_tokens) == 1
+    assert share_tokens[0]["mode"] == "ro"