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# ==================================================================
# Copyright (c) 2007,2008,2009 Metaweb Technologies, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY METAWEB TECHNOLOGIES AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL METAWEB
# TECHNOLOGIES OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ====================================================================
import re
import optparse
class FbException(Exception):
pass
media_types = {
'html': ['text/html'],
'txt': ['text/plain'],
'xml': ['text/xml',
'application/xml'],
'atom': ['application/atom+xml'],
'js': ['text/javascript',
'application/javascript',
'application/x-javascript'],
'json': ['application/json'],
'jpg': ['image/jpeg',
'image/pjpeg'],
'gif': ['image/gif'],
'png': ['image/png'],
}
extension_to_media_type = dict([(k,vs[0]) for k,vs in media_types.items()])
media_type_to_extension = {}
for k,vs in media_types.items():
for v in vs:
media_type_to_extension[v] = k
def dirsplit_unsafe(id):
"""
Split a freebase id into a prefix and a tail, dealing with
trailing slashes, etc.
'/abc' -> '/', 'abc'
'/foo/bar' -> '/foo', 'bar'
'foo/bar' -> 'foo', 'bar'
'foo/bar/' -> 'foo', 'bar'
"""
id = id.rstrip('/')
parts = id.rsplit("/", 1)
# if no "/" like "foo", then this comes back as ["foo"]
if len(parts) == 1:
return None, parts[0]
if not parts[0]:
return '/', parts[1]
return parts
def dirsplit(id):
dir,file = dirsplit_unsafe(id)
if dir == '/guid':
raise FbException('%r is not a freebase keypath' % (id,))
return (dir,file)
value_types = [
'/type/text',
'/type/key',
'/type/rawstring',
'/type/float',
'/type/int',
'/type/boolean',
'/type/uri',
'/type/datetime',
'/type/id',
'/type/enumeration',
]
default_propkeys = {
'value': '/type/value/value',
'id': '/type/object/id',
'guid': '/type/object/guid',
'type': '/type/object/type',
'name': '/type/object/name',
'key': '/type/object/key',
'timestamp': '/type/object/timestamp',
'permission': '/type/object/permission',
'creator': '/type/object/creator',
'attribution': '/type/object/attribution'
};
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