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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from collections import namedtuple
# Give a License attribute names: uri, name, abbreviation
License = namedtuple("License", ["abbreviation", "name", "uri"])
SORTED_LICENSES = [
License("All rights reserved", "No license specified", ""),
License("CC BY 4.0", "Creative Commons Attribution 4.0 International",
"https://creativecommons.org/licenses/by/4.0/"),
License("CC BY-SA 4.0",
"Creative Commons Attribution-ShareAlike 4.0 International",
"https://creativecommons.org/licenses/by-sa/4.0/"),
License("CC BY-ND 4.0",
"Creative Commons Attribution-NoDerivs 4.0 International",
"https://creativecommons.org/licenses/by-nd/4.0/"),
License("CC BY-NC 4.0",
"Creative Commons Attribution-NonCommercial 4.0 International",
"https://creativecommons.org/licenses/by-nc/4.0/"),
License("CC BY-NC-SA 4.0",
"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International",
"https://creativecommons.org/licenses/by-nc-sa/4.0/"),
License("CC BY-NC-ND 4.0",
"Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International",
"https://creativecommons.org/licenses/by-nc-nd/4.0/"),
License("CC BY 3.0", "Creative Commons Attribution 3.0 Unported",
"https://creativecommons.org/licenses/by/3.0/"),
License("CC BY-SA 3.0",
"Creative Commons Attribution-ShareAlike 3.0 Unported",
"https://creativecommons.org/licenses/by-sa/3.0/"),
License("CC BY-ND 3.0",
"Creative Commons Attribution-NoDerivs 3.0 Unported",
"https://creativecommons.org/licenses/by-nd/3.0/"),
License("CC BY-NC 3.0",
"Creative Commons Attribution-NonCommercial 3.0 Unported",
"https://creativecommons.org/licenses/by-nc/3.0/"),
License("CC BY-NC-SA 3.0",
"Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported",
"https://creativecommons.org/licenses/by-nc-sa/3.0/"),
License("CC BY-NC-ND 3.0",
"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported",
"https://creativecommons.org/licenses/by-nc-nd/3.0/"),
License("CC0 1.0",
"Creative Commons CC0 1.0 Universal",
"https://creativecommons.org/publicdomain/zero/1.0/"),
License("Public Domain","Public Domain",
"https://creativecommons.org/publicdomain/mark/1.0/"),
]
# dict {uri: License,...} to enable fast license lookup by uri. Ideally,
# we'd want to use an OrderedDict (python 2.7+) here to avoid having the
# same data in two structures
SUPPORTED_LICENSES = {l.uri: l for l in SORTED_LICENSES}
def get_license_by_url(url):
"""Look up a license by its url and return the License object"""
try:
return SUPPORTED_LICENSES[url]
except KeyError:
# in case of an unknown License, just display the url given
# rather than exploding in the user's face.
return License(url, url, url)
def licenses_as_choices():
"""List of (uri, abbreviation) tuples for HTML choice field population
The data seems to be consumed/deleted during usage, so hand over a
throwaway list, rather than just a generator.
"""
return [(lic.uri, lic.abbreviation) for lic in SORTED_LICENSES]
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