updates
This commit is contained in:
Iliyan Angelov
@@ -0,0 +1,722 @@
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# -*- coding: utf-8 -*-
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#
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# Copyright (c) the purl authors
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# SPDX-License-Identifier: MIT
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# Visit https://github.com/package-url/packageurl-python for support and
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# download.
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from packageurl import PackageURL
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from packageurl.contrib.route import NoRouteAvailable
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from packageurl.contrib.route import Router
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DEFAULT_MAVEN_REPOSITORY = "https://repo.maven.apache.org/maven2"
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def get_repo_download_url_by_package_type(
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type, namespace, name, version, archive_extension="tar.gz"
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):
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"""
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Return the download URL for a hosted git repository given a package type
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or None.
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"""
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if archive_extension not in ("zip", "tar.gz"):
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raise ValueError("Only zip and tar.gz extensions are supported")
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download_url_by_type = {
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"github": f"https://github.com/{namespace}/{name}/archive/{version}.{archive_extension}",
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"bitbucket": f"https://bitbucket.org/{namespace}/{name}/get/{version}.{archive_extension}",
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"gitlab": f"https://gitlab.com/{namespace}/{name}/-/archive/{version}/{name}-{version}.{archive_extension}",
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}
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return download_url_by_type.get(type)
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repo_router = Router()
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download_router = Router()
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def _get_url_from_router(router, purl):
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if purl:
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try:
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return router.process(purl)
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except NoRouteAvailable:
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return
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def get_repo_url(purl):
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"""
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Return a repository URL inferred from the `purl` string.
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"""
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return _get_url_from_router(repo_router, purl)
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def get_download_url(purl):
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"""
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Return a download URL inferred from the `purl` string.
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"""
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download_url = _get_url_from_router(download_router, purl)
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if download_url:
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return download_url
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# Fallback on the `download_url` qualifier when available.
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purl_data = PackageURL.from_string(purl)
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return purl_data.qualifiers.get("download_url", None)
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def get_inferred_urls(purl):
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"""
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Return all inferred URLs (repo, download) from the `purl` string.
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"""
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url_functions = (
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get_repo_url,
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get_download_url,
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)
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inferred_urls = []
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for url_func in url_functions:
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url = url_func(purl)
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if url:
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inferred_urls.append(url)
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return inferred_urls
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# Backward compatibility
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purl2url = get_repo_url
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get_url = get_repo_url
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@repo_router.route("pkg:cargo/.*")
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def build_cargo_repo_url(purl):
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"""
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Return a cargo repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://crates.io/crates/{name}/{version}"
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elif name:
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return f"https://crates.io/crates/{name}"
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@repo_router.route("pkg:bitbucket/.*")
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def build_bitbucket_repo_url(purl):
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"""
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Return a bitbucket repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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if name and namespace:
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return f"https://bitbucket.org/{namespace}/{name}"
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@repo_router.route("pkg:github/.*")
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def build_github_repo_url(purl):
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"""
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Return a github repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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version = purl_data.version
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qualifiers = purl_data.qualifiers
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if not (name and namespace):
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return
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repo_url = f"https://github.com/{namespace}/{name}"
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if version:
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version_prefix = qualifiers.get("version_prefix", "")
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repo_url = f"{repo_url}/tree/{version_prefix}{version}"
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return repo_url
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@repo_router.route("pkg:gitlab/.*")
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def build_gitlab_repo_url(purl):
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"""
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Return a gitlab repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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if name and namespace:
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return f"https://gitlab.com/{namespace}/{name}"
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@repo_router.route("pkg:(gem|rubygems)/.*")
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def build_rubygems_repo_url(purl):
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"""
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Return a rubygems repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://rubygems.org/gems/{name}/versions/{version}"
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elif name:
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return f"https://rubygems.org/gems/{name}"
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@repo_router.route("pkg:cran/.*")
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def build_cran_repo_url(purl):
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"""
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Return a cran repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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return f"https://cran.r-project.org/src/contrib/{name}_{version}.tar.gz"
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@repo_router.route("pkg:npm/.*")
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def build_npm_repo_url(purl):
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"""
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Return a npm repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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version = purl_data.version
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repo_url = "https://www.npmjs.com/package/"
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if namespace:
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repo_url += f"{namespace}/"
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repo_url += f"{name}"
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if version:
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repo_url += f"/v/{version}"
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return repo_url
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@repo_router.route("pkg:pypi/.*")
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def build_pypi_repo_url(purl):
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"""
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Return a pypi repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = (purl_data.name or "").replace("_", "-")
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version = purl_data.version
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if name and version:
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return f"https://pypi.org/project/{name}/{version}/"
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elif name:
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return f"https://pypi.org/project/{name}/"
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@repo_router.route("pkg:composer/.*")
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def build_composer_repo_url(purl):
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"""
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Return a composer repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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namespace = purl_data.namespace
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if name and version:
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return f"https://packagist.org/packages/{namespace}/{name}#{version}"
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elif name:
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return f"https://packagist.org/packages/{namespace}/{name}"
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@repo_router.route("pkg:nuget/.*")
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def build_nuget_repo_url(purl):
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"""
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Return a nuget repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://www.nuget.org/packages/{name}/{version}"
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elif name:
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return f"https://www.nuget.org/packages/{name}"
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@repo_router.route("pkg:hackage/.*")
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def build_hackage_repo_url(purl):
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"""
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Return a hackage repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://hackage.haskell.org/package/{name}-{version}"
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elif name:
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return f"https://hackage.haskell.org/package/{name}"
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@repo_router.route("pkg:golang/.*")
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def build_golang_repo_url(purl):
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"""
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Return a golang repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://pkg.go.dev/{namespace}/{name}@{version}"
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elif name:
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return f"https://pkg.go.dev/{namespace}/{name}"
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@repo_router.route("pkg:cocoapods/.*")
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def build_cocoapods_repo_url(purl):
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"""
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Return a CocoaPods repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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return name and f"https://cocoapods.org/pods/{name}"
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@repo_router.route("pkg:maven/.*")
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def build_maven_repo_url(purl):
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"""
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Return a Maven repo URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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version = purl_data.version
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qualifiers = purl_data.qualifiers
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base_url = qualifiers.get("repository_url", DEFAULT_MAVEN_REPOSITORY)
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if namespace and name and version:
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namespace = namespace.replace(".", "/")
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return f"{base_url}/{namespace}/{name}/{version}"
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# Download URLs:
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@download_router.route("pkg:cargo/.*")
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def build_cargo_download_url(purl):
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"""
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Return a cargo download URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://crates.io/api/v1/crates/{name}/{version}/download"
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@download_router.route("pkg:(gem|rubygems)/.*")
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def build_rubygems_download_url(purl):
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"""
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Return a rubygems download URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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name = purl_data.name
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version = purl_data.version
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if name and version:
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return f"https://rubygems.org/downloads/{name}-{version}.gem"
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@download_router.route("pkg:npm/.*")
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def build_npm_download_url(purl):
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"""
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Return a npm download URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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version = purl_data.version
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base_url = "https://registry.npmjs.org"
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if namespace:
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base_url += f"/{namespace}"
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if name and version:
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return f"{base_url}/{name}/-/{name}-{version}.tgz"
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@download_router.route("pkg:maven/.*")
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def build_maven_download_url(purl):
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"""
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Return a maven download URL from the `purl` string.
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"""
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purl_data = PackageURL.from_string(purl)
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namespace = purl_data.namespace
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name = purl_data.name
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version = purl_data.version
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qualifiers = purl_data.qualifiers
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base_url = qualifiers.get("repository_url", DEFAULT_MAVEN_REPOSITORY)
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maven_type = qualifiers.get("type", "jar") # default to "jar"
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classifier = qualifiers.get("classifier")
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if namespace and name and version:
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namespace = namespace.replace(".", "/")
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classifier = f"-{classifier}" if classifier else ""
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||||
return f"{base_url}/{namespace}/{name}/{version}/{name}-{version}{classifier}.{maven_type}"
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@download_router.route("pkg:hackage/.*")
|
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def build_hackage_download_url(purl):
|
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"""
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Return a hackage download URL from the `purl` string.
|
||||
"""
|
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purl_data = PackageURL.from_string(purl)
|
||||
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||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
|
||||
if name and version:
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return f"https://hackage.haskell.org/package/{name}-{version}/{name}-{version}.tar.gz"
|
||||
|
||||
|
||||
@download_router.route("pkg:nuget/.*")
|
||||
def build_nuget_download_url(purl):
|
||||
"""
|
||||
Return a nuget download URL from the `purl` string.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
|
||||
if name and version:
|
||||
return f"https://www.nuget.org/api/v2/package/{name}/{version}"
|
||||
|
||||
|
||||
@download_router.route("pkg:gitlab/.*", "pkg:bitbucket/.*", "pkg:github/.*")
|
||||
def build_repo_download_url(purl):
|
||||
"""
|
||||
Return a gitlab download URL from the `purl` string.
|
||||
"""
|
||||
return get_repo_download_url(purl)
|
||||
|
||||
|
||||
@download_router.route("pkg:hex/.*")
|
||||
def build_hex_download_url(purl):
|
||||
"""
|
||||
Return a hex download URL from the `purl` string.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
|
||||
if name and version:
|
||||
return f"https://repo.hex.pm/tarballs/{name}-{version}.tar"
|
||||
|
||||
|
||||
@download_router.route("pkg:golang/.*")
|
||||
def build_golang_download_url(purl):
|
||||
"""
|
||||
Return a golang download URL from the `purl` string.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
namespace = purl_data.namespace
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
|
||||
if not name:
|
||||
return
|
||||
|
||||
# TODO: https://github.com/package-url/packageurl-python/issues/197
|
||||
if namespace:
|
||||
name = f"{namespace}/{name}"
|
||||
|
||||
ename = escape_golang_path(name)
|
||||
eversion = escape_golang_path(version)
|
||||
|
||||
if not eversion.startswith("v"):
|
||||
eversion = "v" + eversion
|
||||
|
||||
if name and version:
|
||||
return f"https://proxy.golang.org/{ename}/@v/{eversion}.zip"
|
||||
|
||||
|
||||
@download_router.route("pkg:pub/.*")
|
||||
def build_pub_download_url(purl):
|
||||
"""
|
||||
Return a pub download URL from the `purl` string.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
|
||||
if name and version:
|
||||
return f"https://pub.dev/api/archives/{name}-{version}.tar.gz"
|
||||
|
||||
|
||||
@download_router.route("pkg:swift/.*")
|
||||
def build_swift_download_url(purl):
|
||||
"""
|
||||
Return a Swift Package download URL from the `purl` string.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
namespace = purl_data.namespace
|
||||
|
||||
if not (namespace or name or version):
|
||||
return
|
||||
|
||||
return f"https://{namespace}/{name}/archive/{version}.zip"
|
||||
|
||||
|
||||
@download_router.route("pkg:luarocks/.*")
|
||||
def build_luarocks_download_url(purl):
|
||||
"""
|
||||
Return a LuaRocks download URL from the `purl` string.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
qualifiers = purl_data.qualifiers or {}
|
||||
|
||||
repository_url = qualifiers.get("repository_url", "https://luarocks.org")
|
||||
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
|
||||
if name and version:
|
||||
return f"{repository_url}/{name}-{version}.src.rock"
|
||||
|
||||
|
||||
@download_router.route("pkg:conda/.*")
|
||||
def build_conda_download_url(purl):
|
||||
"""
|
||||
Resolve a Conda PURL to a real downloadable URL
|
||||
|
||||
Supported qualifiers:
|
||||
- channel: e.g., main, conda-forge (required for deterministic base)
|
||||
- subdir: e.g., linux-64, osx-arm64, win-64, noarch
|
||||
- build: exact build string (optional but recommended)
|
||||
- type: 'conda' or 'tar.bz2' (preference; fallback to whichever exists)
|
||||
"""
|
||||
p = PackageURL.from_string(purl)
|
||||
if not p.name or not p.version:
|
||||
return None
|
||||
|
||||
q = p.qualifiers or {}
|
||||
name = p.name
|
||||
version = p.version
|
||||
build = q.get("build")
|
||||
channel = q.get("channel") or "main"
|
||||
subdir = q.get("subdir") or "noarch"
|
||||
req_type = q.get("type")
|
||||
|
||||
def _conda_base_for_channel(channel: str) -> str:
|
||||
"""
|
||||
Map a conda channel to its base URL.
|
||||
- 'main' / 'defaults' -> repo.anaconda.com
|
||||
- any other channel -> conda.anaconda.org/<channel>
|
||||
"""
|
||||
ch = (channel or "").lower()
|
||||
if ch in ("main", "defaults"):
|
||||
return "https://repo.anaconda.com/pkgs/main"
|
||||
return f"https://conda.anaconda.org/{ch}"
|
||||
|
||||
base = _conda_base_for_channel(channel)
|
||||
|
||||
package_identifier = (
|
||||
f"{name}-{version}-{build}.{req_type}" if build else f"{name}-{version}.{req_type}"
|
||||
)
|
||||
|
||||
download_url = f"{base}/{subdir}/{package_identifier}"
|
||||
return download_url
|
||||
|
||||
|
||||
@download_router.route("pkg:alpm/.*")
|
||||
def build_alpm_download_url(purl_str):
|
||||
purl = PackageURL.from_string(purl_str)
|
||||
name = purl.name
|
||||
version = purl.version
|
||||
arch = purl.qualifiers.get("arch", "any")
|
||||
|
||||
if not name or not version:
|
||||
return None
|
||||
|
||||
first_letter = name[0]
|
||||
url = f"https://archive.archlinux.org/packages/{first_letter}/{name}/{name}-{version}-{arch}.pkg.tar.zst"
|
||||
return url
|
||||
|
||||
|
||||
def normalize_version(version: str) -> str:
|
||||
"""
|
||||
Remove the epoch (if any) from a Debian version.
|
||||
E.g., "1:2.4.47-2" becomes "2.4.47-2"
|
||||
"""
|
||||
if ":" in version:
|
||||
_, v = version.split(":", 1)
|
||||
return v
|
||||
return version
|
||||
|
||||
|
||||
@download_router.route("pkg:deb/.*")
|
||||
def build_deb_download_url(purl_str: str) -> str:
|
||||
"""
|
||||
Construct a download URL for a Debian or Ubuntu package PURL.
|
||||
Supports optional 'repository_url' in qualifiers.
|
||||
"""
|
||||
p = PackageURL.from_string(purl_str)
|
||||
|
||||
name = p.name
|
||||
version = p.version
|
||||
namespace = p.namespace
|
||||
qualifiers = p.qualifiers or {}
|
||||
arch = qualifiers.get("arch")
|
||||
repository_url = qualifiers.get("repository_url")
|
||||
|
||||
if not name or not version:
|
||||
raise ValueError("Both name and version must be present in deb purl")
|
||||
|
||||
if not arch:
|
||||
arch = "source"
|
||||
|
||||
if repository_url:
|
||||
base_url = repository_url.rstrip("/")
|
||||
else:
|
||||
if namespace == "debian":
|
||||
base_url = "https://deb.debian.org/debian"
|
||||
elif namespace == "ubuntu":
|
||||
base_url = "http://archive.ubuntu.com/ubuntu"
|
||||
else:
|
||||
raise NotImplementedError(f"Unsupported distro namespace: {namespace}")
|
||||
|
||||
norm_version = normalize_version(version)
|
||||
|
||||
if arch == "source":
|
||||
filename = f"{name}_{norm_version}.dsc"
|
||||
else:
|
||||
filename = f"{name}_{norm_version}_{arch}.deb"
|
||||
|
||||
pool_path = f"/pool/main/{name[0].lower()}/{name}"
|
||||
|
||||
return f"{base_url}{pool_path}/{filename}"
|
||||
|
||||
|
||||
@download_router.route("pkg:apk/.*")
|
||||
def build_apk_download_url(purl):
|
||||
"""
|
||||
Return a download URL for a fully qualified Alpine Linux package PURL.
|
||||
|
||||
Example:
|
||||
pkg:apk/acct@6.6.4-r0?arch=x86&alpine_version=v3.11&repo=main
|
||||
"""
|
||||
purl = PackageURL.from_string(purl)
|
||||
name = purl.name
|
||||
version = purl.version
|
||||
arch = purl.qualifiers.get("arch")
|
||||
repo = purl.qualifiers.get("repo")
|
||||
alpine_version = purl.qualifiers.get("alpine_version")
|
||||
|
||||
if not name or not version or not arch or not repo or not alpine_version:
|
||||
raise ValueError(
|
||||
"All qualifiers (arch, repo, alpine_version) and name/version must be present in apk purl"
|
||||
)
|
||||
|
||||
return (
|
||||
f"https://dl-cdn.alpinelinux.org/alpine/{alpine_version}/{repo}/{arch}/{name}-{version}.apk"
|
||||
)
|
||||
|
||||
|
||||
def get_repo_download_url(purl):
|
||||
"""
|
||||
Return ``download_url`` if present in ``purl`` qualifiers or
|
||||
if ``namespace``, ``name`` and ``version`` are present in ``purl``
|
||||
else return None.
|
||||
"""
|
||||
purl_data = PackageURL.from_string(purl)
|
||||
|
||||
namespace = purl_data.namespace
|
||||
type = purl_data.type
|
||||
name = purl_data.name
|
||||
version = purl_data.version
|
||||
qualifiers = purl_data.qualifiers
|
||||
|
||||
download_url = qualifiers.get("download_url")
|
||||
if download_url:
|
||||
return download_url
|
||||
|
||||
if not (namespace and name and version):
|
||||
return
|
||||
|
||||
version_prefix = qualifiers.get("version_prefix", "")
|
||||
version = f"{version_prefix}{version}"
|
||||
|
||||
return get_repo_download_url_by_package_type(
|
||||
type=type, namespace=namespace, name=name, version=version
|
||||
)
|
||||
|
||||
|
||||
# TODO: https://github.com/package-url/packageurl-python/issues/196
|
||||
def escape_golang_path(path: str) -> str:
|
||||
"""
|
||||
Return an case-encoded module path or version name.
|
||||
|
||||
This is done by replacing every uppercase letter with an exclamation mark followed by the
|
||||
corresponding lower-case letter, in order to avoid ambiguity when serving from case-insensitive
|
||||
file systems.
|
||||
|
||||
See https://golang.org/ref/mod#goproxy-protocol.
|
||||
"""
|
||||
escaped_path = ""
|
||||
for c in path:
|
||||
if c >= "A" and c <= "Z":
|
||||
# replace uppercase with !lowercase
|
||||
escaped_path += "!" + chr(ord(c) + ord("a") - ord("A"))
|
||||
else:
|
||||
escaped_path += c
|
||||
return escaped_path
|
||||
Reference in New Issue
Block a user