Add client tool to get single CVE

pyproject.toml

@@ -11,6 +11,7 @@ packages = [
 ]
 
 [tool.poetry.scripts]
+glvd = 'glvd.cli.client.__main__:main'
 glvd-data = 'glvd.cli.data.__main__:main'
 
 [tool.poetry.dependencies]

src/glvd/cli/client/__init__.py

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: MIT
+
+from __future__ import annotations
+
+from ..registry import CliRegistry
+
+
+cli = CliRegistry()

src/glvd/cli/client/__main__.py

@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: MIT
+
+from __future__ import annotations
+
+from . import cli
+
+# Import to register all the commands
+from . import (  # noqa: F401
+    cve,
+)
+
+
+def main() -> None:
+    cli.main()
+
+
+if __name__ == '__main__':
+    main()

src/glvd/cli/client/cve.py

@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: MIT
+
+from __future__ import annotations
+
+import json
+import logging
+import sys
+import urllib.parse
+
+from ...util import requests
+from . import cli
+
+
+logger = logging.getLogger(__name__)
+
+
+class ClientCve:
+    server: str
+
+    @staticmethod
+    @cli.register(
+        'cve',
+        arguments=[
+            cli.add_argument(
+                'cve',
+                help='the CVE to look up',
+                metavar='CVE',
+            ),
+            cli.add_argument(
+                '--server',
+                default='http://localhost:5000',
+                help='the server to use',
+            ),
+            cli.add_argument(
+                '--debug',
+                action='store_true',
+                help='enable debug output',
+            ),
+        ]
+    )
+    def run(cve: str, server: str, debug: bool) -> None:
+        logging.basicConfig(level=debug and logging.DEBUG or logging.INFO)
+        ClientCve(server)(cve)
+
+    def __init__(self, server: str) -> None:
+        self.server = server
+
+    def __call__(self, cve: str) -> None:
+        with requests.RetrySession() as rsession:
+            resp = rsession.get(
+                urllib.parse.urljoin(self.server, f'v1/cves/{cve}'),
+            )
+            if resp.status_code == 200:
+                data = resp.json()
+                json.dump(data, sys.stdout, indent=2)
+            elif resp.status_code == 404:
+                print(f'{cve} not found', file=sys.stderr)
+            else:
+                resp.raise_for_status()
+
+
+if __name__ == '__main__':
+    ClientCve.run()

tests/cli/client/test_cve.py

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: MIT
+
+from glvd.cli.client.cve import ClientCve
+
+
+class TestIngestNvd:
+    async def test_one(self, requests_mock):
+        requests_mock.get(
+            'http://localhost/v1/cves/TEST-0',
+            json=[
+                {
+                    'id': 'TEST-0',
+                    'lastModified': '2019-04-01T00:00:00',
+                },
+            ],
+        )
+
+        client = ClientCve(server='http://localhost')
+        assert client(cve='TEST-0') is None