| 1 | # SPDX-License-Identifier: Apache-2.0 |
| 2 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | import asyncio |
| 4 | import tempfile |
| 5 | from pathlib import Path |
| 6 | from ssl import SSLContext |
| 7 | |
| 8 | import pytest |
| 9 | |
| 10 | from vllm.entrypoints.launchers.utils.ssl import SSLCertRefresher |
| 11 | |
| 12 | |
| 13 | class MockSSLContext(SSLContext): |
| 14 | def __init__(self): |
| 15 | self.load_cert_chain_count = 0 |
| 16 | self.load_ca_count = 0 |
| 17 | |
| 18 | def load_cert_chain( |
| 19 | self, |
| 20 | certfile, |
| 21 | keyfile=None, |
| 22 | password=None, |
| 23 | ): |
| 24 | self.load_cert_chain_count += 1 |
| 25 | |
| 26 | def load_verify_locations( |
| 27 | self, |
| 28 | cafile=None, |
| 29 | capath=None, |
| 30 | cadata=None, |
| 31 | ): |
| 32 | self.load_ca_count += 1 |
| 33 | |
| 34 | |
| 35 | def create_file() -> str: |
| 36 | with tempfile.NamedTemporaryFile(dir="/tmp", delete=False) as f: |
| 37 | return f.name |
| 38 | |
| 39 | |
| 40 | def touch_file(path: str) -> None: |
| 41 | Path(path).touch() |
| 42 | |
| 43 | |
| 44 | async def wait_for_counts( |
| 45 | ssl_context: MockSSLContext, |
| 46 | *, |
| 47 | cert_chain_count: int, |
| 48 | ca_count: int, |
| 49 | timeout: float = 5.0, |
| 50 | ) -> None: |
| 51 | deadline = asyncio.get_running_loop().time() + timeout |
| 52 | while True: |
| 53 | if ( |
| 54 | ssl_context.load_cert_chain_count >= cert_chain_count |
| 55 | and ssl_context.load_ca_count >= ca_count |
| 56 | ): |
| 57 | return |
| 58 | |
| 59 | if asyncio.get_running_loop().time() >= deadline: |
| 60 | assert ssl_context.load_cert_chain_count >= cert_chain_count |
| 61 | assert ssl_context.load_ca_count >= ca_count |
| 62 | |
| 63 | await asyncio.sleep(0.05) |
| 64 | |
| 65 | |
| 66 | @pytest.mark.asyncio |
| 67 | async def test_ssl_refresher(): |
| 68 | ssl_context = MockSSLContext() |
| 69 | key_path = create_file() |
| 70 | cert_path = create_file() |
| 71 | ca_path = create_file() |
| 72 | ssl_refresher = SSLCertRefresher(ssl_context, key_path, cert_path, ca_path) |
| 73 | await asyncio.sleep(1) |
| 74 | assert ssl_context.load_cert_chain_count == 0 |
| 75 | assert ssl_context.load_ca_count == 0 |
| 76 | |
| 77 | touch_file(key_path) |
| 78 | await wait_for_counts( |
| 79 | ssl_context, |
| 80 | cert_chain_count=1, |
| 81 | ca_count=0, |
| 82 | ) |
| 83 | assert ssl_context.load_ca_count == 0 |
| 84 | |
| 85 | touch_file(cert_path) |
| 86 | touch_file(ca_path) |
| 87 | await wait_for_counts( |
| 88 | ssl_context, |
| 89 | cert_chain_count=2, |
| 90 | ca_count=1, |
| 91 | ) |
| 92 | |
| 93 | ssl_refresher.stop() |
| 94 | await asyncio.sleep(0) |
| 95 | cert_chain_count = ssl_context.load_cert_chain_count |
| 96 | ca_count = ssl_context.load_ca_count |
| 97 | |
| 98 | touch_file(cert_path) |
| 99 | touch_file(ca_path) |
| 100 | await asyncio.sleep(1) |
| 101 | assert ssl_context.load_cert_chain_count == cert_chain_count |
| 102 | assert ssl_context.load_ca_count == ca_count |