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Make sure we only invoke Imagemagick if this is actually an image (#22721).

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git-svn-id: http://svn.redmine.org/redmine/trunk@15362 e93f8b46-1217-0410-a6f0-8f06a7374b81
This commit is contained in:
Jean-Philippe Lang 2016-05-04 18:05:54 +00:00
parent fcb4e510ea
commit bf81c96b79
2 changed files with 6 additions and 0 deletions
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1
Gemfile
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@ -14,6 +14,7 @@ gem "protected_attributes"
gem "actionpack-action_caching"
gem "actionpack-xml_parser"
gem "roadie-rails"
gem "mimemagic"
# Request at least nokogiri 1.6.7.2 because of security advisories
gem "nokogiri", ">= 1.6.7.2"

5
lib/redmine/thumbnail.rb
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@ -16,6 +16,7 @@
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require 'fileutils'
require 'mimemagic'
module Redmine
module Thumbnail
@ -27,6 +28,10 @@ module Redmine
def self.generate(source, target, size)
return nil unless convert_available?
unless File.exists?(target)
# Make sure we only invoke Imagemagick if this is actually an image
unless File.open(source) {|f| MimeMagic.by_magic(f).try(:image?)}
return nil
end
directory = File.dirname(target)
unless File.exists?(directory)
FileUtils.mkdir_p directory