# File lib/pdfkit/middleware.rb, line 11 def call(env) @request = Rack::Request.new(env) @render_pdf = false @caching = @conditions.delete(:caching) { false } set_request_to_render_as_pdf(env) if render_as_pdf? status, headers, response = @app.call(env) if rendering_pdf? && headers['Content-Type'] =~ /text\/html|application\/xhtml\+xml/ body = response.respond_to?(:body) ? response.body : response.join body = body.join if body.is_a?(Array) body = PDFKit.new(translate_paths(body, env), @options).to_pdf response = [body] if headers['PDFKit-save-pdf'] File.open(headers['PDFKit-save-pdf'], 'wb') { |file| file.write(body) } rescue nil headers.delete('PDFKit-save-pdf') end unless @caching # Do not cache PDFs headers.delete('ETag') headers.delete('Cache-Control') end headers['Content-Length'] = (body.respond_to?(:bytesize) ? body.bytesize : body.size).to_s headers['Content-Type'] = 'application/pdf' end [status, headers, response] end
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