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67 lines
2.3 KiB
67 lines
2.3 KiB
"""Libravatar plugin for Pelican"""
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## Copyright (C) 2015 Rafael Laboissiere <rafael@laboissiere.net>
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##
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## This program is free software: you can redistribute it and/or modify it
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## under the terms of the GNU General Affero Public License as published by
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## the Free Software Foundation, either version 3 of the License, or (at
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## your option) any later version.
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##
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## This program is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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## Affero General Public License for more details.
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##
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## You should have received a copy of the GNU Affero General Public License
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## along with this program. If not, see http://www.gnu.org/licenses/.
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import hashlib
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from pelican import signals
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def initialize (pelicanobj):
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"""Initialize the Libravatar plugin"""
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pelicanobj.settings.setdefault ('LIBRAVATAR_MISSING', None)
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pelicanobj.settings.setdefault ('LIBRAVATAR_SIZE', None)
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def add_libravatar (generator, metadata):
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"""Article generator connector for the Libravatar plugin"""
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missing = generator.settings.get ('LIBRAVATAR_MISSING')
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size = generator.settings.get ('LIBRAVATAR_SIZE')
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## Check the presence of the Email header
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if 'email' not in metadata.keys ():
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try:
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metadata ['email'] = generator.settings.get ('AUTHOR_EMAIL')
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except:
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pass
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## Add the Libravatar URL
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if metadata ['email']:
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## Compose URL using the MD5 hash
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## (the ascii encoding is necessary for Python3)
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email = metadata ['email'].lower ().encode ('ascii')
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md5 = hashlib.md5 (email).hexdigest ()
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url = 'http://cdn.libravatar.org/avatar/' + md5
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## Add eventual "missing picture" option
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if missing or size:
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url = url + '?'
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if missing:
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url = url + 'd=' + missing
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if size:
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url = url + '&'
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if size:
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url = url + 's=' + str (size)
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## Add URL to the article's metadata
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metadata ['author_libravatar'] = url
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def register ():
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"""Register the Libravatar plugin with Pelican"""
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signals.initialized.connect (initialize)
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signals.article_generator_context.connect (add_libravatar)
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