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1 | 1 | # redMine - project management software |
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2 | 2 | # Copyright (C) 2006-2007 Jean-Philippe Lang |
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3 | 3 | # |
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4 | 4 | # This program is free software; you can redistribute it and/or |
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5 | 5 | # modify it under the terms of the GNU General Public License |
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6 | 6 | # as published by the Free Software Foundation; either version 2 |
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7 | 7 | # of the License, or (at your option) any later version. |
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8 | 8 | # |
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9 | 9 | # This program is distributed in the hope that it will be useful, |
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10 | 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | 12 | # GNU General Public License for more details. |
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13 | 13 | # |
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14 | 14 | # You should have received a copy of the GNU General Public License |
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15 | 15 | # along with this program; if not, write to the Free Software |
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16 | 16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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17 | 17 | |
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18 | 18 | require "digest/md5" |
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19 | 19 | |
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20 | 20 | class Attachment < ActiveRecord::Base |
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21 | 21 | belongs_to :container, :polymorphic => true |
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22 | 22 | belongs_to :author, :class_name => "User", :foreign_key => "author_id" |
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23 | 23 | |
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24 | 24 | validates_presence_of :container, :filename |
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25 | 25 | validates_length_of :filename, :maximum => 255 |
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26 | 26 | validates_length_of :disk_filename, :maximum => 255 |
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27 | 27 | |
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28 | 28 | cattr_accessor :storage_path |
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29 | 29 | @@storage_path = "#{RAILS_ROOT}/files" |
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30 | 30 | |
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31 | 31 | def validate |
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32 | 32 | errors.add_to_base :too_long if self.filesize > Setting.attachment_max_size.to_i.kilobytes |
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33 | 33 | end |
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34 | 34 | |
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35 | 35 | def file=(incomming_file) |
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36 | 36 | unless incomming_file.nil? |
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37 | 37 | @temp_file = incomming_file |
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38 | 38 | if @temp_file.size > 0 |
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39 | 39 | self.filename = sanitize_filename(@temp_file.original_filename) |
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40 | 40 | self.disk_filename = DateTime.now.strftime("%y%m%d%H%M%S") + "_" + self.filename |
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41 | self.content_type = @temp_file.content_type | |
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41 | self.content_type = @temp_file.content_type.chomp | |
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42 | 42 | self.filesize = @temp_file.size |
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43 | 43 | end |
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44 | 44 | end |
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45 | 45 | end |
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46 | 46 | |
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47 | 47 | def file |
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48 | 48 | nil |
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49 | 49 | end |
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50 | 50 | |
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51 | 51 | # Copy temp file to its final location |
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52 | 52 | def before_save |
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53 | 53 | if @temp_file && (@temp_file.size > 0) |
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54 | 54 | logger.debug("saving '#{self.diskfile}'") |
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55 | 55 | File.open(diskfile, "wb") do |f| |
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56 | 56 | f.write(@temp_file.read) |
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57 | 57 | end |
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58 | 58 | self.digest = Digest::MD5.hexdigest(File.read(diskfile)) |
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59 | 59 | end |
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60 | 60 | end |
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61 | 61 | |
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62 | 62 | # Deletes file on the disk |
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63 | 63 | def after_destroy |
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64 | 64 | if self.filename? |
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65 | 65 | File.delete(diskfile) if File.exist?(diskfile) |
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66 | 66 | end |
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67 | 67 | end |
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68 | 68 | |
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69 | 69 | # Returns file's location on disk |
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70 | 70 | def diskfile |
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71 | 71 | "#{@@storage_path}/#{self.disk_filename}" |
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72 | 72 | end |
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73 | 73 | |
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74 | 74 | def increment_download |
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75 | 75 | increment!(:downloads) |
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76 | 76 | end |
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77 | 77 | |
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78 | 78 | # returns last created projects |
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79 | 79 | def self.most_downloaded |
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80 | 80 | find(:all, :limit => 5, :order => "downloads DESC") |
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81 | 81 | end |
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82 | 82 | |
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83 | 83 | def project |
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84 | 84 | container.is_a?(Project) ? container : container.project |
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85 | 85 | end |
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86 | 86 | |
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87 | 87 | private |
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88 | 88 | def sanitize_filename(value) |
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89 | 89 | # get only the filename, not the whole path |
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90 | 90 | just_filename = value.gsub(/^.*(\\|\/)/, '') |
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91 | 91 | # NOTE: File.basename doesn't work right with Windows paths on Unix |
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92 | 92 | # INCORRECT: just_filename = File.basename(value.gsub('\\\\', '/')) |
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93 | 93 | |
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94 | 94 | # Finally, replace all non alphanumeric, underscore or periods with underscore |
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95 | 95 | @filename = just_filename.gsub(/[^\w\.\-]/,'_') |
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96 | 96 | end |
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97 | 97 | |
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98 | 98 | end |
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