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1 | 1 | # Redmine - project management software |
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2 | 2 | # Copyright (C) 2006-2012 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 'diff' |
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19 | 19 | require 'enumerator' |
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20 | 20 | |
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21 | 21 | class WikiPage < ActiveRecord::Base |
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22 | 22 | include Redmine::SafeAttributes |
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23 | 23 | |
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24 | 24 | belongs_to :wiki |
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25 | 25 | has_one :content, :class_name => 'WikiContent', :foreign_key => 'page_id', :dependent => :destroy |
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26 | 26 | acts_as_attachable :delete_permission => :delete_wiki_pages_attachments |
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27 | 27 | acts_as_tree :dependent => :nullify, :order => 'title' |
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28 | 28 | |
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29 | 29 | acts_as_watchable |
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30 | 30 | acts_as_event :title => Proc.new {|o| "#{l(:label_wiki)}: #{o.title}"}, |
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31 | 31 | :description => :text, |
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32 | 32 | :datetime => :created_on, |
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33 | 33 | :url => Proc.new {|o| {:controller => 'wiki', :action => 'show', :project_id => o.wiki.project, :id => o.title}} |
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34 | 34 | |
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35 | 35 | acts_as_searchable :columns => ['title', "#{WikiContent.table_name}.text"], |
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36 | 36 | :include => [{:wiki => :project}, :content], |
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37 | 37 | :permission => :view_wiki_pages, |
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38 | 38 | :project_key => "#{Wiki.table_name}.project_id" |
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39 | 39 | |
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40 | 40 | attr_accessor :redirect_existing_links |
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41 | 41 | |
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42 | 42 | validates_presence_of :title |
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43 | 43 | validates_format_of :title, :with => /^[^,\.\/\?\;\|\s]*$/ |
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44 | 44 | validates_uniqueness_of :title, :scope => :wiki_id, :case_sensitive => false |
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45 | 45 | validates_associated :content |
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46 | 46 | |
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47 | 47 | validate :validate_parent_title |
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48 | 48 | before_destroy :remove_redirects |
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49 | 49 | before_save :handle_redirects |
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50 | 50 | |
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51 | 51 | # eager load information about last updates, without loading text |
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52 | 52 | scope :with_updated_on, { |
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53 | 53 | :select => "#{WikiPage.table_name}.*, #{WikiContent.table_name}.updated_on", |
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54 | 54 | :joins => "LEFT JOIN #{WikiContent.table_name} ON #{WikiContent.table_name}.page_id = #{WikiPage.table_name}.id" |
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55 | 55 | } |
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56 | 56 | |
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57 | 57 | # Wiki pages that are protected by default |
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58 | 58 | DEFAULT_PROTECTED_PAGES = %w(sidebar) |
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59 | 59 | |
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60 | 60 | safe_attributes 'parent_id', |
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61 | 61 | :if => lambda {|page, user| page.new_record? || user.allowed_to?(:rename_wiki_pages, page.project)} |
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62 | 62 | |
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63 | 63 | def initialize(attributes=nil, *args) |
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64 | 64 | super |
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65 | 65 | if new_record? && DEFAULT_PROTECTED_PAGES.include?(title.to_s.downcase) |
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66 | 66 | self.protected = true |
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67 | 67 | end |
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68 | 68 | end |
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69 | 69 | |
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70 | 70 | def visible?(user=User.current) |
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71 | 71 | !user.nil? && user.allowed_to?(:view_wiki_pages, project) |
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72 | 72 | end |
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73 | 73 | |
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74 | 74 | def title=(value) |
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75 | 75 | value = Wiki.titleize(value) |
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76 | 76 | @previous_title = read_attribute(:title) if @previous_title.blank? |
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77 | 77 | write_attribute(:title, value) |
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78 | 78 | end |
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79 | 79 | |
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80 | 80 | def handle_redirects |
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81 | 81 | self.title = Wiki.titleize(title) |
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82 | 82 | # Manage redirects if the title has changed |
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83 | 83 | if !@previous_title.blank? && (@previous_title != title) && !new_record? |
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84 | 84 | # Update redirects that point to the old title |
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85 | 85 | wiki.redirects.find_all_by_redirects_to(@previous_title).each do |r| |
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86 | 86 | r.redirects_to = title |
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87 | 87 | r.title == r.redirects_to ? r.destroy : r.save |
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88 | 88 | end |
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89 | 89 | # Remove redirects for the new title |
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90 | 90 | wiki.redirects.find_all_by_title(title).each(&:destroy) |
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91 | 91 | # Create a redirect to the new title |
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92 | 92 | wiki.redirects << WikiRedirect.new(:title => @previous_title, :redirects_to => title) unless redirect_existing_links == "0" |
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93 | 93 | @previous_title = nil |
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94 | 94 | end |
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95 | 95 | end |
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96 | 96 | |
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97 | 97 | def remove_redirects |
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98 | 98 | # Remove redirects to this page |
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99 | 99 | wiki.redirects.find_all_by_redirects_to(title).each(&:destroy) |
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100 | 100 | end |
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101 | 101 | |
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102 | 102 | def pretty_title |
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103 | 103 | WikiPage.pretty_title(title) |
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104 | 104 | end |
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105 | 105 | |
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106 | 106 | def content_for_version(version=nil) |
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107 | 107 | result = content.versions.find_by_version(version.to_i) if version |
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108 | 108 | result ||= content |
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109 | 109 | result |
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110 | 110 | end |
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111 | 111 | |
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112 | 112 | def diff(version_to=nil, version_from=nil) |
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113 | 113 | version_to = version_to ? version_to.to_i : self.content.version |
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114 | 114 | version_from = version_from ? version_from.to_i : version_to - 1 |
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115 | 115 | version_to, version_from = version_from, version_to unless version_from < version_to |
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116 | 116 | |
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117 | 117 | content_to = content.versions.find_by_version(version_to) |
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118 | 118 | content_from = content.versions.find_by_version(version_from) |
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119 | 119 | |
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120 | 120 | (content_to && content_from) ? WikiDiff.new(content_to, content_from) : nil |
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121 | 121 | end |
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122 | 122 | |
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123 | 123 | def annotate(version=nil) |
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124 | 124 | version = version ? version.to_i : self.content.version |
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125 | 125 | c = content.versions.find_by_version(version) |
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126 | 126 | c ? WikiAnnotate.new(c) : nil |
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127 | 127 | end |
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128 | 128 | |
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129 | 129 | def self.pretty_title(str) |
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130 | 130 | (str && str.is_a?(String)) ? str.tr('_', ' ') : str |
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131 | 131 | end |
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132 | 132 | |
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133 | 133 | def project |
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134 | 134 | wiki.project |
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135 | 135 | end |
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136 | 136 | |
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137 | 137 | def text |
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138 | 138 | content.text if content |
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139 | 139 | end |
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140 | 140 | |
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141 | 141 | def updated_on |
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142 | 142 | unless @updated_on |
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143 | 143 | if time = read_attribute(:updated_on) |
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144 | 144 | # content updated_on was eager loaded with the page |
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145 | 145 | begin |
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146 |
@updated_on = |
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146 | @updated_on = (self.class.default_timezone == :utc ? Time.parse(time.to_s).utc : Time.parse(time.to_s).localtime) | |
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147 | 147 | rescue |
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148 | 148 | end |
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149 | 149 | else |
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150 | 150 | @updated_on = content && content.updated_on |
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151 | 151 | end |
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152 | 152 | end |
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153 | 153 | @updated_on |
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154 | 154 | end |
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155 | 155 | |
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156 | 156 | # Returns true if usr is allowed to edit the page, otherwise false |
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157 | 157 | def editable_by?(usr) |
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158 | 158 | !protected? || usr.allowed_to?(:protect_wiki_pages, wiki.project) |
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159 | 159 | end |
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160 | 160 | |
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161 | 161 | def attachments_deletable?(usr=User.current) |
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162 | 162 | editable_by?(usr) && super(usr) |
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163 | 163 | end |
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164 | 164 | |
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165 | 165 | def parent_title |
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166 | 166 | @parent_title || (self.parent && self.parent.pretty_title) |
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167 | 167 | end |
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168 | 168 | |
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169 | 169 | def parent_title=(t) |
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170 | 170 | @parent_title = t |
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171 | 171 | parent_page = t.blank? ? nil : self.wiki.find_page(t) |
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172 | 172 | self.parent = parent_page |
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173 | 173 | end |
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174 | 174 | |
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175 | 175 | protected |
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176 | 176 | |
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177 | 177 | def validate_parent_title |
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178 | 178 | errors.add(:parent_title, :invalid) if !@parent_title.blank? && parent.nil? |
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179 | 179 | errors.add(:parent_title, :circular_dependency) if parent && (parent == self || parent.ancestors.include?(self)) |
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180 | 180 | errors.add(:parent_title, :not_same_project) if parent && (parent.wiki_id != wiki_id) |
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181 | 181 | end |
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182 | 182 | end |
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183 | 183 | |
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184 | 184 | class WikiDiff < Redmine::Helpers::Diff |
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185 | 185 | attr_reader :content_to, :content_from |
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186 | 186 | |
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187 | 187 | def initialize(content_to, content_from) |
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188 | 188 | @content_to = content_to |
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189 | 189 | @content_from = content_from |
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190 | 190 | super(content_to.text, content_from.text) |
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191 | 191 | end |
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192 | 192 | end |
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193 | 193 | |
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194 | 194 | class WikiAnnotate |
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195 | 195 | attr_reader :lines, :content |
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196 | 196 | |
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197 | 197 | def initialize(content) |
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198 | 198 | @content = content |
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199 | 199 | current = content |
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200 | 200 | current_lines = current.text.split(/\r?\n/) |
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201 | 201 | @lines = current_lines.collect {|t| [nil, nil, t]} |
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202 | 202 | positions = [] |
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203 | 203 | current_lines.size.times {|i| positions << i} |
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204 | 204 | while (current.previous) |
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205 | 205 | d = current.previous.text.split(/\r?\n/).diff(current.text.split(/\r?\n/)).diffs.flatten |
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206 | 206 | d.each_slice(3) do |s| |
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207 | 207 | sign, line = s[0], s[1] |
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208 | 208 | if sign == '+' && positions[line] && positions[line] != -1 |
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209 | 209 | if @lines[positions[line]][0].nil? |
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210 | 210 | @lines[positions[line]][0] = current.version |
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211 | 211 | @lines[positions[line]][1] = current.author |
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212 | 212 | end |
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213 | 213 | end |
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214 | 214 | end |
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215 | 215 | d.each_slice(3) do |s| |
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216 | 216 | sign, line = s[0], s[1] |
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217 | 217 | if sign == '-' |
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218 | 218 | positions.insert(line, -1) |
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219 | 219 | else |
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220 | 220 | positions[line] = nil |
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221 | 221 | end |
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222 | 222 | end |
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223 | 223 | positions.compact! |
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224 | 224 | # Stop if every line is annotated |
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225 | 225 | break unless @lines.detect { |line| line[0].nil? } |
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226 | 226 | current = current.previous |
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227 | 227 | end |
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228 | 228 | @lines.each { |line| |
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229 | 229 | line[0] ||= current.version |
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230 | 230 | # if the last known version is > 1 (eg. history was cleared), we don't know the author |
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231 | 231 | line[1] ||= current.author if current.version == 1 |
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232 | 232 | } |
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233 | 233 | end |
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234 | 234 | end |
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