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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Middleware::CompressedJson do
let_it_be(:decompressed_input) { '{"foo": "bar"}' }
let_it_be(:input) { ActiveSupport::Gzip.compress(decompressed_input) }
let(:app) { double(:app) }
let(:middleware) { described_class.new(app) }
let(:env) do
{
'HTTP_CONTENT_ENCODING' => 'gzip',
'REQUEST_METHOD' => 'POST',
'CONTENT_TYPE' => 'application/json',
'PATH_INFO' => path,
'rack.input' => StringIO.new(input)
}
end
shared_examples 'decompress middleware' do
it 'replaces input with a decompressed content' do
expect(app).to receive(:call)
middleware.call(env)
expect(env['rack.input'].read).to eq(decompressed_input)
expect(env['CONTENT_LENGTH']).to eq(decompressed_input.length)
expect(env['HTTP_CONTENT_ENCODING']).to be_nil
end
end
describe '#call' do
context 'with collector route' do
let(:path) { '/api/v4/error_tracking/collector/1/store'}
it_behaves_like 'decompress middleware'
end
context 'with collector route under relative url' do
let(:path) { '/gitlab/api/v4/error_tracking/collector/1/store'}
before do
stub_config_setting(relative_url_root: '/gitlab')
end
it_behaves_like 'decompress middleware'
end
context 'with some other route' do
let(:path) { '/api/projects/123' }
it 'keeps the original input' do
expect(app).to receive(:call)
middleware.call(env)
expect(env['rack.input'].read).to eq(input)
expect(env['HTTP_CONTENT_ENCODING']).to eq('gzip')
end
end
context 'payload is too large' do
let(:body_limit) { Gitlab::Middleware::CompressedJson::MAXIMUM_BODY_SIZE }
let(:decompressed_input) { 'a' * (body_limit + 100) }
let(:input) { ActiveSupport::Gzip.compress(decompressed_input) }
let(:path) { '/api/v4/error_tracking/collector/1/envelope'}
it 'reads only limited size' do
expect(middleware.call(env))
.to eq([413, { 'Content-Type' => 'text/plain' }, ['Payload Too Large']])
end
end
end
end
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