47 lines
1.3 KiB
Ruby
47 lines
1.3 KiB
Ruby
#
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# Copyright (C) 2011 Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Slug.generate
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class AutoHandle
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class << self
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def chars
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return @chars if @chars
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@chars = (65..90).map { |x| x.chr }
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@chars << (48..57).map { |x| x.chr }
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@chars << (97..122).map { |x| x.chr }
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@chars.flatten!
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end
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def rand_char
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chars[rand(chars.size)]
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end
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def generate(purpose=nil, n=4)
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slug = purpose + '-' if purpose
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slug ||= ''
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n.times { slug << rand_char }
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slug
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end
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def generate_securish_uuid
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Canvas::Security.hmac_sha1("#{UUIDSingleton.instance.generate}#{AutoHandle.generate(nil, 20)}")
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end
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end
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end
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