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106 lines
2.7 KiB
106 lines
2.7 KiB
7 years ago
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# -*- coding: utf-8 -*-
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"""
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Author: Bernhard Scheirle
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"""
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from __future__ import unicode_literals
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import logging
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import os
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import hashlib
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logger = logging.getLogger(__name__)
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_log = "pelican_comment_system: avatars: "
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try:
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from . identicon import identicon
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_identiconImported = True
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except ImportError as e:
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logger.warning(_log + "identicon deactivated: " + str(e))
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_identiconImported = False
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# Global Variables
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_identicon_save_path = None
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_identicon_output_path = None
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_identicon_data = None
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_identicon_size = None
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_initialized = False
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_authors = None
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_missingAvatars = []
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def _ready():
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if not _initialized:
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logger.warning(_log + "Module not initialized. use init")
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if not _identicon_data:
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logger.debug(_log + "No identicon data set")
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return _identiconImported and _initialized and _identicon_data
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def init(pelican_output_path, identicon_output_path, identicon_data,
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identicon_size, authors):
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global _identicon_save_path
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global _identicon_output_path
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global _identicon_data
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global _identicon_size
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global _initialized
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global _authors
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global _missingAvatars
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_identicon_save_path = os.path.join(pelican_output_path,
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identicon_output_path)
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_identicon_output_path = identicon_output_path
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_identicon_data = identicon_data
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_identicon_size = identicon_size
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_authors = authors
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_missingAvatars = []
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_initialized = True
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def _createIdenticonOutputFolder():
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if not _ready():
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return
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if not os.path.exists(_identicon_save_path):
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os.makedirs(_identicon_save_path)
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def getAvatarPath(comment_id, metadata):
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if not _ready():
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return ''
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md5 = hashlib.md5()
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author = tuple()
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for data in _identicon_data:
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if data in metadata:
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string = "{}".format(metadata[data])
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md5.update(string.encode('utf-8'))
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author += tuple([string])
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else:
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logger.warning(_log + data +
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" is missing in comment: " + comment_id)
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if author in _authors:
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return _authors[author]
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global _missingAvatars
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code = md5.hexdigest()
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if not code in _missingAvatars:
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_missingAvatars.append(code)
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return os.path.join(_identicon_output_path, '%s.png' % code)
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def generateAndSaveMissingAvatars():
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_createIdenticonOutputFolder()
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global _missingAvatars
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for code in _missingAvatars:
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avatar_path = '%s.png' % code
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avatar = identicon.render_identicon(int(code, 16), _identicon_size)
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avatar_save_path = os.path.join(_identicon_save_path, avatar_path)
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avatar.save(avatar_save_path, 'PNG')
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_missingAvatars = []
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