108 lines
2.5 KiB
Ruby
108 lines
2.5 KiB
Ruby
require "final_destination"
|
|
require "mini_mime"
|
|
require "open-uri"
|
|
|
|
class FileHelper
|
|
|
|
def self.log(log_level, message)
|
|
Rails.logger.public_send(
|
|
log_level,
|
|
"#{RailsMultisite::ConnectionManagement.current_db}: #{message}"
|
|
)
|
|
end
|
|
|
|
def self.is_image?(filename)
|
|
filename =~ images_regexp
|
|
end
|
|
|
|
class FakeIO
|
|
attr_accessor :status
|
|
end
|
|
|
|
def self.download(url,
|
|
max_file_size:,
|
|
tmp_file_name:,
|
|
follow_redirect: false,
|
|
read_timeout: 5,
|
|
skip_rate_limit: false,
|
|
verbose: false)
|
|
|
|
url = "https:" + url if url.start_with?("//")
|
|
raise Discourse::InvalidParameters.new(:url) unless url =~ /^https?:\/\//
|
|
|
|
tmp = nil
|
|
|
|
fd = FinalDestination.new(
|
|
url,
|
|
max_redirects: follow_redirect ? 5 : 1,
|
|
skip_rate_limit: skip_rate_limit,
|
|
verbose: verbose
|
|
)
|
|
|
|
fd.get do |response, chunk, uri|
|
|
if tmp.nil?
|
|
# error handling
|
|
if uri.blank?
|
|
if response.code.to_i >= 400
|
|
# attempt error API compatibility
|
|
io = FakeIO.new
|
|
io.status = [response.code, ""]
|
|
raise OpenURI::HTTPError.new("#{response.code} Error", io)
|
|
else
|
|
log(:error, "FinalDestination did not work for: #{url}") if verbose
|
|
throw :done
|
|
end
|
|
end
|
|
|
|
# first run
|
|
tmp_file_ext = File.extname(uri.path)
|
|
|
|
if tmp_file_ext.blank? && response.content_type.present?
|
|
ext = MiniMime.lookup_by_content_type(response.content_type)&.extension
|
|
ext = "jpg" if ext == "jpe"
|
|
tmp_file_ext = "." + ext if ext.present?
|
|
end
|
|
|
|
tmp = Tempfile.new([tmp_file_name, tmp_file_ext])
|
|
tmp.binmode
|
|
end
|
|
|
|
tmp.write(chunk)
|
|
|
|
throw :done if tmp.size > max_file_size
|
|
end
|
|
|
|
tmp&.rewind
|
|
tmp
|
|
end
|
|
|
|
def self.optimize_image!(filename)
|
|
ImageOptim.new(
|
|
# GLOBAL
|
|
timeout: 15,
|
|
skip_missing_workers: true,
|
|
# PNG
|
|
optipng: { level: 2, strip: SiteSetting.strip_image_metadata },
|
|
advpng: false,
|
|
pngcrush: false,
|
|
pngout: false,
|
|
pngquant: false,
|
|
# JPG
|
|
jpegoptim: { strip: SiteSetting.strip_image_metadata ? "all" : "none" },
|
|
jpegtran: false,
|
|
jpegrecompress: false,
|
|
).optimize_image!(filename)
|
|
end
|
|
|
|
private
|
|
|
|
def self.images
|
|
@@images ||= Set.new %w{jpg jpeg png gif tif tiff bmp svg webp ico}
|
|
end
|
|
|
|
def self.images_regexp
|
|
@@images_regexp ||= /\.(#{images.to_a.join("|")})$/i
|
|
end
|
|
|
|
end
|