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Commit 78e55056e17b388ffe594928c0152609be9fc512

Authored by Rodrigo Souto
Committed by Joenio Costa
1 parent e8cad054
Exists in master and in 28 other branches 1.2+SPB2, 2_split_by_role, add_fields_in_api, api_fixies, api_pagination, api_private_token, api_tasks, article_hit_count, blog_page_bug, checkbox_to_user_can_edit_page, communities_ratings, communities_ratings_moderation, community_ratings_rebase, fix_cloned_article_parent, fix_gallery_image_url, fix_javascript_categories, fix_optional_fields, fix_suggest_article, fix_user_email_validation, highlight_block_fix, notification_plugin, notification_plugin_rebase, script_to_update, split_by_role, stable, temp_ratings, tests, tests_fixies

Xss_terminate must not escape html comments 

(ActionItem1540)
Showing 6 changed files with 68 additions and 8 deletions   Show diff stats
test/unit/environment_test.rb
  Diff comments   View file @78e5505
... ... @@ -879,4 +879,12 @@ class EnvironmentTest < Test::Unit::TestCase
879 879 assert_no_match /[<>]/, environment.message_for_disabled_enterprise
880 880 end
881 881  
  882 + should 'not sanitize html comments' do
  883 + environment = Environment.new
  884 + environment.message_for_disabled_enterprise = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  885 + environment.valid?
  886 +
  887 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, environment.message_for_disabled_enterprise
  888 + end
  889 +
882 890 end
... ...
test/unit/event_test.rb
  Diff comments   View file @78e5505
... ... @@ -250,4 +250,14 @@ class EventTest &lt; ActiveSupport::TestCase
250 250 assert_no_match /[<>]/, event.address
251 251 end
252 252  
  253 + should 'not sanitize html comments' do
  254 + event = Event.new
  255 + event.description = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  256 + event.address = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  257 + event.valid?
  258 +
  259 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, event.description
  260 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, event.address
  261 + end
  262 +
253 263 end
... ...
test/unit/folder_test.rb
  Diff comments   View file @78e5505
... ... @@ -140,6 +140,14 @@ class FolderTest &lt; ActiveSupport::TestCase
140 140 assert_equal "<h1> Body </h1>", folder.body
141 141 end
142 142  
  143 + should 'not sanitize html comments' do
  144 + folder = Folder.new
  145 + folder.body = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  146 + folder.valid?
  147 +
  148 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, folder.body
  149 + end
  150 +
143 151 should 'escape malformed html tags' do
144 152 folder = Folder.new
145 153 folder.body = "<h1<< Description >>/h1>"
... ...
test/unit/profile_test.rb
  Diff comments   View file @78e5505
... ... @@ -1553,6 +1553,16 @@ class ProfileTest &lt; Test::Unit::TestCase
1553 1553 assert_no_match /[<>]/, profile.custom_footer
1554 1554 end
1555 1555  
  1556 + should 'not sanitize html comments' do
  1557 + profile = Profile.new
  1558 + profile.custom_header = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  1559 + profile.custom_footer = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  1560 + profile.valid?
  1561 +
  1562 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, profile.custom_header
  1563 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, profile.custom_footer
  1564 + end
  1565 +
1556 1566 private
1557 1567  
1558 1568 def assert_invalid_identifier(id)
... ...
test/unit/tiny_mce_article_test.rb
  Diff comments   View file @78e5505
... ... @@ -74,4 +74,13 @@ class TinyMceArticleTest &lt; Test::Unit::TestCase
74 74 article = TinyMceArticle.create!(:profile => profile, :name => 'article', :abstract => 'abstract', :body => "<embed flashvars='config={&quot;key&quot;:&quot;\#$b6eb72a0f2f1e29f3d4&quot;}'> </embed>")
75 75 assert_equal "<embed flashvars=\"config={&quot;key&quot;:&quot;\#$b6eb72a0f2f1e29f3d4&quot;}\"> </embed>", article.body
76 76 end
  77 +
  78 + should 'not sanitize html comments' do
  79 + article = TinyMceArticle.new
  80 + article.body = '<p><!-- <asdf> << aasdfa >>> --> <h1> Wellformed html code </h1>'
  81 + article.valid?
  82 +
  83 + assert_match /<!-- .* --> <h1> Wellformed html code <\/h1>/, article.body
  84 + end
  85 +
77 86 end
... ...
vendor/plugins/xss_terminate/lib/xss_terminate.rb
  Diff comments   View file @78e5505
... ... @@ -53,7 +53,7 @@ module XssTerminate
53 53 if with == :full
54 54 self[field] = CGI.escapeHTML(self[field])
55 55 elsif with == :white_list
56   - self[field] = CGI.escapeHTML(self[field]) if !wellformed_html_tag?(self[field])
  56 + self[field] = CGI.escapeHTML(self[field]) if !wellformed_html_code?(self[field])
57 57 end
58 58  
59 59 else
... ... @@ -62,7 +62,7 @@ module XssTerminate
62 62 if with == :full
63 63 self.send("#{field}=", CGI.escapeHTML(self.send("#{field}")))
64 64 elsif with == :white_list
65   - self.send("#{field}=", CGI.escapeHTML(self.send("#{field}"))) if !wellformed_html_tag?(self.send("#{field}"))
  65 + self.send("#{field}=", CGI.escapeHTML(self.send("#{field}"))) if !wellformed_html_code?(self.send("#{field}"))
66 66 end
67 67  
68 68 end
... ... @@ -103,14 +103,29 @@ module XssTerminate
103 103 end
104 104 end
105 105  
106   - def wellformed_html_tag?(field)
  106 + def wellformed_html_code?(field)
107 107 return true if !field
108   -
109 108 counter = 0
110   - field.split(//).each do |letter|
111   - counter += 1 if letter == '<'
112   - counter -= 1 if letter == '>'
113   - if counter < 0 || 1 < counter
  109 + in_comment = false
  110 + field=field.split(//)
  111 + for i in 0..field.length-1
  112 + if !in_comment
  113 + if field[i] == '<'
  114 + if field[i+1..i+3] == ["!","-","-"]
  115 + in_comment = true
  116 + else
  117 + counter += 1
  118 + end
  119 + elsif field[i] == '>'
  120 + counter -= 1
  121 + end
  122 + else
  123 + if field[i-2..i] == ["-","-",">"]
  124 + in_comment = false
  125 + end
  126 + end
  127 +
  128 + if counter < 0 || 1 < counter
114 129 return false
115 130 end
116 131 end
... ...