1 files changed, 81 insertions, 0 deletions
diff --git a/redmine/app/models/attachment.rb b/redmine/app/models/attachment.rb
new file mode 100644
index 000000000..bc1ff5d87
--- /dev/null
+++ b/redmine/app/models/attachment.rb
@@ -0,0 +1,81 @@
+# 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.size = @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