80 lines
2.4 KiB
Ruby
80 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Rack::Multipart do # rubocop:disable RSpec/FilePath
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def multipart_fixture(name, length, boundary = "AaB03x")
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data = <<EOF
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--#{boundary}\r
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content-disposition: form-data; name="reply"\r
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\r
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yes\r
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--#{boundary}\r
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content-disposition: form-data; name="fileupload"; filename="dj.jpg"\r
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Content-Type: image/jpeg\r
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Content-Transfer-Encoding: base64\r
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\r
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/9j/4AAQSkZJRgABAQAAAQABAAD//gA+Q1JFQVRPUjogZ2QtanBlZyB2MS4wICh1c2luZyBJSkcg\r
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--#{boundary}--\r
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EOF
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type = %(multipart/form-data; boundary=#{boundary})
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length ||= data.bytesize
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{
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"CONTENT_TYPE" => type,
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"CONTENT_LENGTH" => length.to_s,
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input: StringIO.new(data)
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}
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end
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context 'with Content-Length under the limit' do
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it 'extracts multipart message' do
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env = Rack::MockRequest.env_for("/", multipart_fixture(:text, nil))
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expect(described_class).to receive(:log_large_multipart?).and_call_original
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expect(described_class).not_to receive(:log_multipart_warning)
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params = described_class.parse_multipart(env)
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expect(params.keys).to include(*%w(reply fileupload))
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end
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end
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context 'with Content-Length over the limit' do
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shared_examples 'logs multipart message' do
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it 'extracts multipart message' do
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env = Rack::MockRequest.env_for("/", multipart_fixture(:text, length))
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expect(described_class).to receive(:log_large_multipart?).and_return(true)
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expect(described_class).to receive(:log_multipart_warning).and_call_original
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expect(described_class).to receive(:log_warn).with({
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message: 'Large multipart body detected',
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path: '/',
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content_length: anything,
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correlation_id: anything
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})
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params = described_class.parse_multipart(env)
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expect(params.keys).to include(*%w(reply fileupload))
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end
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end
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context 'from environment' do
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let(:length) { 1001 }
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before do
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stub_env('RACK_MULTIPART_LOGGING_BYTES', 1000)
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end
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it_behaves_like 'logs multipart message'
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end
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context 'default limit' do
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let(:length) { 100_000_001 }
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it_behaves_like 'logs multipart message'
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end
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end
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end
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