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92 lines
3.1 KiB
92 lines
3.1 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at 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,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module Redmine
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module SafeAttributes
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def self.included(base)
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base.extend(ClassMethods)
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end
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module ClassMethods
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# Declares safe attributes
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# An optional Proc can be given for conditional inclusion
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#
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# Example:
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# safe_attributes 'title', 'pages'
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# safe_attributes 'isbn', :if => {|book, user| book.author == user}
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def safe_attributes(*args)
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@safe_attributes ||= []
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if args.empty?
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if superclass < Redmine::SafeAttributes
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superclass.safe_attributes + @safe_attributes
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else
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@safe_attributes
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end
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else
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options = args.last.is_a?(Hash) ? args.pop : {}
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@safe_attributes << [args, options]
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safe_attributes
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end
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end
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end
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# Returns an array that can be safely set by user or current user
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#
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# Example:
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# book.safe_attributes # => ['title', 'pages']
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# book.safe_attributes(book.author) # => ['title', 'pages', 'isbn']
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def safe_attribute_names(user = User.current)
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names = []
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self.class.safe_attributes.map do |attrs, options|
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if options[:if].nil? || options[:if].call(self, user)
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names += attrs.map(&:to_s)
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end
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end
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names.uniq
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end
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# Returns a hash with unsafe attributes removed
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# from the given attrs hash
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#
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# Example:
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# book.delete_unsafe_attributes({'title' => 'My book', 'foo' => 'bar'})
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# # => {'title' => 'My book'}
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def delete_unsafe_attributes(attrs, user = User.current)
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safe = safe_attribute_names(user)
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attrs.dup.delete_if { |k, _v| !safe.include?(k.to_s) }
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end
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# Sets attributes from attrs that are safe
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# attrs is a Hash with string keys
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def safe_attributes=(attrs, user = User.current)
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return unless attrs.is_a?(Hash)
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self.attributes = delete_unsafe_attributes(attrs, user)
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end
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end
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end
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