aboutsummaryrefslogtreecommitdiff
path: root/lib/mauve/alert.rb
diff options
context:
space:
mode:
Diffstat (limited to 'lib/mauve/alert.rb')
-rw-r--r--lib/mauve/alert.rb24
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/mauve/alert.rb b/lib/mauve/alert.rb
index 6b08f82..a5cb885 100644
--- a/lib/mauve/alert.rb
+++ b/lib/mauve/alert.rb
@@ -75,6 +75,20 @@ module Mauve
def size; 99; end
include DataMapper::Resource
+
+ #
+ # If a string matches this regex, it is valid UTF8.
+ #
+ UTF8_REGEXP = Regexp.new(/^(?:#{[
+ "[\x00-\x7F]", # ASCII
+ "[\xC2-\xDF][\x80-\xBF]", # non-overlong 2-byte
+ "\xE0[\xA0-\xBF][\x80-\xBF]", # excluding overlongs
+ "[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}", # straight 3-byte
+ "\xED[\x80-\x9F][\x80-\xBF]", # excluding surrogates
+ "\xF0[\x90-\xBF][\x80-\xBF]{2}", # planes 1-3
+ "[\xF1-\xF3][\x80-\xBF]{3}", # planes 4-15
+ "\xF4[\x80-\x8F][\x80-\xBF]{2}" # plane 16
+ ].join("|")})*$/)
property :id, Serial
property :alert_id, String, :required => true, :unique_index => :alert_index, :length=>256, :lazy => false
@@ -618,6 +632,7 @@ module Mauve
# @return [String]
def remove_html(str, conf = Sanitize::Config::DEFAULT)
raise ArgumentError, "Expected a string, got a #{str.class}" unless str.is_a?(String)
+ str = clean_utf8(str)
if str =~ /<[^0-9 <&.-]/
Sanitize.clean( str, conf )
@@ -631,9 +646,18 @@ module Mauve
# @param [String] str String to clean
# @return [String]
def clean_html(str)
+ str = clean_utf8(str)
remove_html(str, Sanitize::Config::RELAXED.merge({:remove_contents => true}))
end
+ def clean_utf8(str)
+ unless UTF8_REGEXP.match(str)
+ str.gsub(/[^\x00-\x7F]/,'?')
+ else
+ str
+ end
+ end
+
# All alerts currently raised
#
# @return [Array]