Escape non-ascii characters in exported HTML. Closes #2075.

[rails.git] / app / helpers / application_helper.rb

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index b28ab7c1a6eca2dabe18a38d1b90e694bc9e5f6d..ab0ba82a830f0440dee2273edb2bf2bf9f34febc 100644 (file)
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -3,6 +3,14 @@ module ApplicationHelper
     return sanitize(auto_link(simple_format(text), :urls))
   end
 
+  def html_escape_unicode(text)
+    chars = ActiveSupport::Multibyte::Chars.u_unpack(text).map do |c|
+      c < 127 ? c.chr : "&##{c.to_s};"
+    end
+
+    return chars.join("")
+  end
+
   def rss_link_to(*args)
     return link_to(image_tag("RSS.gif", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
   end
@@ -10,4 +18,32 @@ module ApplicationHelper
   def atom_link_to(*args)
     return link_to(image_tag("RSS.gif", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
   end
+
+  def javascript_strings
+    js = ""
+
+    js << "<script type='text/javascript'>\n"
+    js << "i18n_strings = new Array();\n"
+    js << javascript_strings_for_key("javascripts")
+    js << "</script>\n"
+
+    return js
+  end
+
+private
+
+  def javascript_strings_for_key(key)
+    js = ""
+    value = t(key, :locale => "en")
+
+    if value.is_a?(String)
+      js << "i18n_strings['#{key}'] = '" << escape_javascript(t(key)) << "';\n"
+    else
+      value.each_key do |k|
+        js << javascript_strings_for_key("#{key}.#{k}")
+      end
+    end
+
+    return js
+  end
 end