attachment.rb
157 lines
| 5.4 KiB
| text/x-ruby
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RubyLexer
Jean-Philippe Lang
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r330 | # redMine - project management software | ||
| # Copyright (C) 2006-2007 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" | ||||
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r906 | validates_presence_of :container, :filename, :author | ||
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r590 | validates_length_of :filename, :maximum => 255 | ||
| validates_length_of :disk_filename, :maximum => 255 | ||||
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r663 | |||
| acts_as_event :title => :filename, | ||||
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r1669 | :url => Proc.new {|o| {:controller => 'attachments', :action => 'download', :id => o.id, :filename => o.filename}} | ||
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r663 | |||
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r1692 | acts_as_activity_provider :type => 'files', | ||
| :permission => :view_files, | ||||
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r2064 | :author_key => :author_id, | ||
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r1692 | :find_options => {:select => "#{Attachment.table_name}.*", | ||
| :joins => "LEFT JOIN #{Version.table_name} ON #{Attachment.table_name}.container_type='Version' AND #{Version.table_name}.id = #{Attachment.table_name}.container_id " + | ||||
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r2501 | "LEFT JOIN #{Project.table_name} ON #{Version.table_name}.project_id = #{Project.table_name}.id OR ( #{Attachment.table_name}.container_type='Project' AND #{Attachment.table_name}.container_id = #{Project.table_name}.id )"} | ||
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r1692 | |||
| acts_as_activity_provider :type => 'documents', | ||||
| :permission => :view_documents, | ||||
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r2064 | :author_key => :author_id, | ||
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r1692 | :find_options => {:select => "#{Attachment.table_name}.*", | ||
| :joins => "LEFT JOIN #{Document.table_name} ON #{Attachment.table_name}.container_type='Document' AND #{Document.table_name}.id = #{Attachment.table_name}.container_id " + | ||||
| "LEFT JOIN #{Project.table_name} ON #{Document.table_name}.project_id = #{Project.table_name}.id"} | ||||
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r330 | cattr_accessor :storage_path | ||
| @@storage_path = "#{RAILS_ROOT}/files" | ||||
| def validate | ||||
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r2575 | if self.filesize > Setting.attachment_max_size.to_i.kilobytes | ||
| errors.add(:base, :too_long, :count => Setting.attachment_max_size.to_i.kilobytes) | ||||
| end | ||||
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r330 | end | ||
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r1306 | def file=(incoming_file) | ||
| unless incoming_file.nil? | ||||
| @temp_file = incoming_file | ||||
| if @temp_file.size > 0 | ||||
| self.filename = sanitize_filename(@temp_file.original_filename) | ||||
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r1418 | self.disk_filename = Attachment.disk_filename(filename) | ||
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r1306 | self.content_type = @temp_file.content_type.to_s.chomp | ||
| self.filesize = @temp_file.size | ||||
| end | ||||
| end | ||||
| end | ||||
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r330 | |||
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r1306 | def file | ||
| nil | ||||
| end | ||||
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r2578 | # Copies the temporary file to its final location | ||
| # and computes its MD5 hash | ||||
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r1306 | def before_save | ||
| if @temp_file && (@temp_file.size > 0) | ||||
| logger.debug("saving '#{self.diskfile}'") | ||||
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r2578 | md5 = Digest::MD5.new | ||
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r1306 | File.open(diskfile, "wb") do |f| | ||
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r2578 | buffer = "" | ||
| while (buffer = @temp_file.read(8192)) | ||||
| f.write(buffer) | ||||
| md5.update(buffer) | ||||
| end | ||||
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r1306 | end | ||
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r2578 | self.digest = md5.hexdigest | ||
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r1306 | end | ||
| # Don't save the content type if it's longer than the authorized length | ||||
| if self.content_type && self.content_type.length > 255 | ||||
| self.content_type = nil | ||||
| end | ||||
| end | ||||
| # Deletes file on the disk | ||||
| def after_destroy | ||||
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r1430 | File.delete(diskfile) if !filename.blank? && File.exist?(diskfile) | ||
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r1306 | end | ||
| # Returns file's location on disk | ||||
| def diskfile | ||||
| "#{@@storage_path}/#{self.disk_filename}" | ||||
| end | ||||
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r330 | |||
| def increment_download | ||||
| increment!(:downloads) | ||||
| end | ||||
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r538 | |||
| def project | ||||
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r921 | container.project | ||
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r538 | end | ||
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r2114 | def visible?(user=User.current) | ||
| container.attachments_visible?(user) | ||||
| end | ||||
| def deletable?(user=User.current) | ||||
| container.attachments_deletable?(user) | ||||
| end | ||||
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r636 | def image? | ||
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r1306 | self.filename =~ /\.(jpe?g|gif|png)$/i | ||
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r636 | end | ||
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r1506 | def is_text? | ||
| Redmine::MimeType.is_type?('text', filename) | ||||
| end | ||||
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r1502 | def is_diff? | ||
| self.filename =~ /\.(patch|diff)$/i | ||||
| end | ||||
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r2600 | # Returns true if the file is readable | ||
| def readable? | ||||
| File.readable?(diskfile) | ||||
| end | ||||
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r330 | private | ||
| def sanitize_filename(value) | ||||
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r1306 | # 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('\\\\', '/')) | ||||
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r330 | |||
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r1306 | # Finally, replace all non alphanumeric, hyphens or periods with underscore | ||
| @filename = just_filename.gsub(/[^\w\.\-]/,'_') | ||||
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r330 | end | ||
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r1418 | |||
| # Returns an ASCII or hashed filename | ||||
| def self.disk_filename(filename) | ||||
| df = DateTime.now.strftime("%y%m%d%H%M%S") + "_" | ||||
| if filename =~ %r{^[a-zA-Z0-9_\.\-]*$} | ||||
| df << filename | ||||
| else | ||||
| df << Digest::MD5.hexdigest(filename) | ||||
| # keep the extension if any | ||||
| df << $1 if filename =~ %r{(\.[a-zA-Z0-9]+)$} | ||||
| end | ||||
| df | ||||
| end | ||||
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r2 | end | ||