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# frozen_string_literal: true
module Import
module GitlabProjects
# Validates the given object's #content_type and #content_length accordingly
# with the Project Import requirements
class RemoteFileValidator < ActiveModel::Validator
FILE_SIZE_LIMIT = 10.gigabytes
ALLOWED_CONTENT_TYPES = [
'application/gzip',
# S3 uses different file types
'application/x-tar',
'application/x-gzip'
].freeze
def validate(record)
validate_content_length(record)
validate_content_type(record)
end
private
def validate_content_length(record)
if record.content_length.to_i <= 0
record.errors.add(:content_length, :size_too_small, file_size: humanize(1.byte))
elsif record.content_length > FILE_SIZE_LIMIT
record.errors.add(:content_length, :size_too_big, file_size: humanize(FILE_SIZE_LIMIT))
end
end
def humanize(number)
ActiveSupport::NumberHelper.number_to_human_size(number)
end
def validate_content_type(record)
return if ALLOWED_CONTENT_TYPES.include?(record.content_type)
record.errors.add(:content_type, "'%{content_type}' not allowed. (Allowed: %{allowed})" % {
content_type: record.content_type,
allowed: ALLOWED_CONTENT_TYPES.join(', ')
})
end
end
end
end
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