discourse/lib/upload_fixer.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

92 lines
2.5 KiB
Ruby

# frozen_string_literal: true
class UploadFixer
def self.fix_all_extensions
Upload.where("uploads.extension IS NOT NULL").find_each do |upload|
fix_extension_on_upload(upload)
end
end
def self.fix_extension_on_upload(upload)
is_external = Discourse.store.external?
previous_url = upload.url.dup
source =
if is_external
"https:#{previous_url}"
else
Discourse.store.path_for(upload)
end
correct_extension = FastImage.type(source).to_s.downcase
current_extension = upload.extension.to_s.downcase
if correct_extension.present?
correct_extension = 'jpg' if correct_extension == 'jpeg'
current_extension = 'jpg' if current_extension == 'jpeg'
if correct_extension != current_extension
new_filename = change_extension(
upload.original_filename,
correct_extension
)
new_url = change_extension(previous_url, correct_extension)
if is_external
new_url = "/#{new_url}"
source = Discourse.store.get_path_for_upload(upload)
destination = change_extension(source, correct_extension)
Discourse.store.copy_file(
previous_url,
source,
destination
)
upload.update!(
original_filename: new_filename,
url: new_url,
extension: correct_extension
)
DbHelper.remap(previous_url, upload.url)
Discourse.store.remove_file(previous_url, source)
else
destination = change_extension(source, correct_extension)
FileUtils.copy(source, destination)
upload.update!(
original_filename: new_filename,
url: new_url,
extension: correct_extension
)
DbHelper.remap(previous_url, upload.url)
tombstone_path = source.sub("/uploads/", "/uploads/tombstone/")
FileUtils.mkdir_p(File.dirname(tombstone_path))
FileUtils.move(
source,
tombstone_path
)
end
end
end
rescue => e
STDERR.puts "Skipping upload: failed to correct extension on upload id: #{upload.id} #{current_extension} => #{correct_extension}"
STDERR.puts e
end
private
def self.change_extension(path, extension)
pathname = Pathname.new(path)
dirname = pathname.dirname.to_s != "." ? "#{pathname.dirname}/" : ""
basename = File.basename(path, File.extname(path))
"#{dirname}#{basename}.#{extension}"
end
end