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105 lines
3.1 KiB
105 lines
3.1 KiB
# redMine - project management software
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# Copyright (C) 2006-2007 Jean-Philippe Lang
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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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require "digest/md5"
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class Attachment < ActiveRecord::Base
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belongs_to :container, :polymorphic => true
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belongs_to :author, :class_name => "User", :foreign_key => "author_id"
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validates_presence_of :container, :filename, :author
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validates_length_of :filename, :maximum => 255
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validates_length_of :disk_filename, :maximum => 255
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acts_as_event :title => :filename,
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:description => :filename,
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:url => Proc.new {|o| {:controller => 'attachments', :action => 'download', :id => o.id}}
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cattr_accessor :storage_path
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@@storage_path = "#{RAILS_ROOT}/files"
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def validate
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errors.add_to_base :too_long if self.filesize > Setting.attachment_max_size.to_i.kilobytes
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end
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def file=(incomming_file)
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unless incomming_file.nil?
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@temp_file = incomming_file
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if @temp_file.size > 0
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self.filename = sanitize_filename(@temp_file.original_filename)
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self.disk_filename = DateTime.now.strftime("%y%m%d%H%M%S") + "_" + self.filename
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self.content_type = @temp_file.content_type.chomp
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self.filesize = @temp_file.size
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end
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end
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end
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def file
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nil
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end
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# Copy temp file to its final location
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def before_save
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if @temp_file && (@temp_file.size > 0)
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logger.debug("saving '#{self.diskfile}'")
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File.open(diskfile, "wb") do |f|
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f.write(@temp_file.read)
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end
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self.digest = Digest::MD5.hexdigest(File.read(diskfile))
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end
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# Don't save the content type if it's longer than the authorized length
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if self.content_type && self.content_type.length > 255
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self.content_type = nil
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end
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end
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# Deletes file on the disk
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def after_destroy
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if self.filename?
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File.delete(diskfile) if File.exist?(diskfile)
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end
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end
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# Returns file's location on disk
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def diskfile
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"#{@@storage_path}/#{self.disk_filename}"
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end
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def increment_download
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increment!(:downloads)
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end
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def project
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container.project
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end
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def image?
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self.filename =~ /\.(jpeg|jpg|gif|png)$/i
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end
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private
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def sanitize_filename(value)
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# get only the filename, not the whole path
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just_filename = value.gsub(/^.*(\\|\/)/, '')
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# NOTE: File.basename doesn't work right with Windows paths on Unix
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# INCORRECT: just_filename = File.basename(value.gsub('\\\\', '/'))
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# Finally, replace all non alphanumeric, underscore or periods with underscore
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@filename = just_filename.gsub(/[^\w\.\-]/,'_')
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end
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end
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