Source code for galaxy.managers.licenses

import json
import logging
from typing import List

from pkg_resources import resource_string
from pydantic import (
    BaseModel,
    Field,
    HttpUrl
)

from galaxy import exceptions

log = logging.getLogger(__name__)


# https://github.com/spdx/license-list-data/blob/master/accessingLicenses.md#license-list-table-of-contents
[docs]class LicenseMetadataModel(BaseModel):
    licenseId: str = Field(
        title="Identifier",
        description="SPDX Identifier",
        example="Apache-2.0"
    )
    name: str = Field(
        title="Name",
        description="Full name of the license",
        example="Apache License 2.0"
    )
    reference: str = Field(
        title="Reference",
        description="Reference to the HTML format for the license file",
        example="./Apache-2.0.html"
    )
    referenceNumber: int = Field(
        title="Reference number",
        description="*Deprecated* - this field is generated and is no longer in use"
    )
    isDeprecatedLicenseId: bool = Field(
        title="Deprecated License",
        description="True if the entire license is deprecated",
        example=False
    )
    isOsiApproved: bool = Field(
        title="OSI approved",
        description="Indicates if the [OSI](https://opensource.org/) has approved the license",
        example=True
    )
    seeAlso: List[HttpUrl] = Field(
        title="Reference URLs",
        description="Cross reference URL pointing to additional copies of the license"
    )
    detailsUrl: HttpUrl = Field(
        title="Details URL",
        description="URL to the SPDX json details for this license",
        example="http://spdx.org/licenses/Apache-2.0.json"
    )
    recommended: bool = Field(
        title="Recommended",
        description="True if this license is recommended to be used"
    )
    url: HttpUrl = Field(
        title="URL",
        description="License URL",
        example="http://www.apache.org/licenses/LICENSE-2.0"
    )
    spdxUrl: HttpUrl = Field(
        title="SPDX URL",
        example="https://spdx.org/licenses/Apache-2.0.html"
    )


# https://docs.google.com/document/d/16vnRtDjrx5eHSl4jXs2vMaDTI6luyyLzU6xMvRHsnbI/edit#heading=h.1pihjj16olz2
RECOMMENDED_LICENSES = [
    "Apache-2.0",
    "Artistic-2.0",
    "BSD-2-Clause",
    "BSD-3-Clause",
    "CC-BY-4.0",
    "CC-BY-SA-4.0",
    "CC0-1.0",
    "EPL-2.0",
    "AGPL-3.0-or-later",
    "GPL-3.0-or-later",
    "MIT",
    "MPL-2.0",
    "PDDL-1.0",
]
SPDX_LICENSES_STRING = resource_string(__name__, 'licenses.json').decode("UTF-8")
SPDX_LICENSES = json.loads(SPDX_LICENSES_STRING)
for license in SPDX_LICENSES["licenses"]:
    license["recommended"] = license["licenseId"] in RECOMMENDED_LICENSES
    license["spdxUrl"] = "https://spdx.org/licenses/%s" % license["reference"][len("./"):]
    seeAlso = license.get("seeAlso", [])
    if len(seeAlso) > 0:
        url = seeAlso[0]
    else:
        url = license["spdxUrl"]
    license["url"] = url


[docs]class LicensesManager:

[docs]    def __init__(self):
        by_index = {}
        for spdx_license in self.index():

            by_index[spdx_license["licenseId"]] = spdx_license
            by_index[spdx_license["detailsUrl"]] = spdx_license
            for seeAlso in spdx_license.get("seeAlso", []):
                by_index[seeAlso] = spdx_license
        self._by_index = by_index

[docs]    def index(self):
        return SPDX_LICENSES["licenses"]

[docs]    def get(self, uri):
        if uri in self._by_index:
            return self._by_index[uri]
        else:
            log.warning("Unknown license URI encountered [%s]" % uri)
        return {
            "url": uri
        }

[docs]    def get_licenses(self) -> List[LicenseMetadataModel]:
        return SPDX_LICENSES["licenses"]

[docs]    def get_license_by_id(self, id: str) -> LicenseMetadataModel:
        license = self.get(id)
        if license.get("licenseId", None) is None:
            raise exceptions.ObjectNotFound(f"License '{id}' not found")
        return LicenseMetadataModel(**license)