141 lines
4.3 KiB
Python
141 lines
4.3 KiB
Python
"""Sonatype Nexus REST API client using httpx async."""
|
|
|
|
import asyncio
|
|
import hashlib
|
|
import os
|
|
from urllib.parse import unquote
|
|
|
|
import httpx
|
|
|
|
from ..config import config
|
|
from ..constants import (
|
|
PKG_PATH_PREFIX,
|
|
SHA256_CHUNK_SIZE,
|
|
)
|
|
from ..logging_setup import log
|
|
|
|
|
|
def extract_pypi_info(asset_path: str) -> tuple[str, str] | None:
|
|
"""Extract package name and version from a PyPI asset path.
|
|
|
|
Path format: packages/requests/2.31.0/requests-2.31.0.tar.gz
|
|
"""
|
|
parts = asset_path.strip("/").split("/")
|
|
if len(parts) >= 3 and parts[0] == PKG_PATH_PREFIX:
|
|
return parts[1], parts[2]
|
|
return None
|
|
|
|
|
|
def extract_go_info(asset_path: str) -> tuple[str, str] | None:
|
|
"""Extract module and version from a Go proxy asset path.
|
|
|
|
Path format: packages/github.com/gin-gonic/gin/@v/v1.9.0.zip
|
|
"""
|
|
cleaned = asset_path.strip("/")
|
|
# Find @v/ marker
|
|
idx = cleaned.find("/@v/")
|
|
if idx == -1:
|
|
return None
|
|
if cleaned.startswith(PKG_PATH_PREFIX + "/"):
|
|
module = cleaned[len(PKG_PATH_PREFIX) + 1 : idx]
|
|
else:
|
|
module = cleaned[:idx]
|
|
if not module:
|
|
return None
|
|
# Version: after @v/ up to the next / or end
|
|
ver_start = idx + 4 # len("/@v/")
|
|
rest = cleaned[ver_start:]
|
|
version = rest.split("/")[0] if "/" in rest else rest
|
|
if version.endswith(".zip"):
|
|
version = version[:-4]
|
|
return module, version
|
|
|
|
|
|
def extract_npm_info(asset_path: str) -> tuple[str, str] | None:
|
|
"""Extract package name and version from an npm proxy asset path.
|
|
|
|
Path format: packages/react/-/react-18.2.0.tgz
|
|
"""
|
|
parts = asset_path.strip("/").split("/")
|
|
if len(parts) < 4 or parts[0] != PKG_PATH_PREFIX:
|
|
return None
|
|
name = parts[1]
|
|
# Last segment: <name>-<version>.tgz
|
|
last = parts[-1]
|
|
if last.startswith(name + "-"):
|
|
raw = last[len(name) + 1 :]
|
|
for ext in (".tgz", ".tar.gz"):
|
|
if raw.endswith(ext):
|
|
return name, raw[: -len(ext)]
|
|
return None
|
|
|
|
|
|
# Map of ecosystem → extractor function
|
|
EXTRACTORS = {
|
|
"pypi": extract_pypi_info,
|
|
"go": extract_go_info,
|
|
"npm": extract_npm_info,
|
|
}
|
|
|
|
|
|
def extract_package_info(asset_path: str, ecosystem: str) -> tuple[str, str] | None:
|
|
"""Extract package name and version based on ecosystem."""
|
|
extractor = EXTRACTORS.get(ecosystem)
|
|
if extractor:
|
|
return extractor(asset_path)
|
|
# Fallback for unknown ecosystems — try simple parts split
|
|
parts = asset_path.strip("/").split("/")
|
|
if len(parts) >= 3:
|
|
return parts[1], parts[2]
|
|
return None
|
|
|
|
|
|
def parse_package_path(path: str) -> tuple[str, str]:
|
|
"""Parse a URL path like 'eviltest/0.1.0' or 'github.com/attacker/evilmodule/v0.1.0'
|
|
into (package_name, package_version)."""
|
|
parts = path.rsplit("/", 1)
|
|
pkg_name = unquote(parts[0])
|
|
pkg_version = unquote(parts[1]) if len(parts) == 2 else ""
|
|
return pkg_name, pkg_version
|
|
|
|
|
|
async def download_asset(download_url: str, dest_dir: str) -> str | None:
|
|
"""Download an asset from Nexus using async httpx."""
|
|
dest_path = os.path.join(dest_dir, os.path.basename(download_url.split("?")[0]))
|
|
|
|
async with httpx.AsyncClient(
|
|
timeout=config.nexus_download_timeout, follow_redirects=True
|
|
) as client:
|
|
try:
|
|
response = await client.get(download_url)
|
|
response.raise_for_status()
|
|
content = response.content
|
|
await asyncio.to_thread(_write_file, dest_path, content)
|
|
return dest_path
|
|
except Exception as e:
|
|
log.warning("Failed to download %s: %s", download_url, e)
|
|
return None
|
|
|
|
|
|
def _write_file(path: str, content: bytes) -> None:
|
|
with open(path, "wb") as f:
|
|
f.write(content)
|
|
|
|
|
|
async def nexus_get(path: str) -> httpx.Response:
|
|
"""Make a GET request to Nexus REST API (anonymous access)."""
|
|
async with httpx.AsyncClient(timeout=config.nexus_api_timeout) as client:
|
|
return await client.get(f"{config.nexus_url.rstrip('/')}{path}")
|
|
|
|
|
|
async def compute_sha256(filepath: str) -> str:
|
|
return await asyncio.to_thread(_compute_sha256_sync, filepath)
|
|
|
|
|
|
def _compute_sha256_sync(filepath: str) -> str:
|
|
h = hashlib.sha256()
|
|
with open(filepath, "rb") as f:
|
|
for chunk in iter(lambda: f.read(SHA256_CHUNK_SIZE), b""):
|
|
h.update(chunk)
|
|
return h.hexdigest()
|