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# redMine - project management software
# Copyright (C) 2006 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require "digest/md5"
class Attachment < ActiveRecord::Base
belongs_to :container, :polymorphic => true
belongs_to :author, :class_name => "User", :foreign_key => "author_id"
validates_presence_of :filename
def file=(incomming_file)
unless incomming_file.nil?
@temp_file = incomming_file
if @temp_file.size > 0
self.filename = sanitize_filename(@temp_file.original_filename)
self.disk_filename = DateTime.now.strftime("%y%m%d%H%M%S") + "_" + self.filename
self.content_type = @temp_file.content_type
self.filesize = @temp_file.size
end
end
end
# Copy temp file to its final location
def before_save
if @temp_file && (@temp_file.size > 0)
logger.debug("saving '#{self.diskfile}'")
File.open(diskfile, "wb") do |f|
f.write(@temp_file.read)
end
self.digest = Digest::MD5.hexdigest(File.read(diskfile))
end
end
# Deletes file on the disk
def after_destroy
if self.filename?
File.delete(diskfile) if File.exist?(diskfile)
end
end
# Returns file's location on disk
def diskfile
"#{$RDM_STORAGE_PATH}/#{self.disk_filename}"
end
def increment_download
increment!(:downloads)
end
# returns last created projects
def self.most_downloaded
find(:all, :limit => 5, :order => "downloads DESC")
end
private
def sanitize_filename(value)
# get only the filename, not the whole path
just_filename = value.gsub(/^.*(\\|\/)/, '')
# NOTE: File.basename doesn't work right with Windows paths on Unix
# INCORRECT: just_filename = File.basename(value.gsub('\\\\', '/'))
# Finally, replace all non alphanumeric, underscore or periods with underscore
@filename = just_filename.gsub(/[^\w\.\-]/,'_')
end
end
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