170 lines
4.9 KiB
Ruby
170 lines
4.9 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::ImportExport::DecompressedArchiveSizeValidator, feature_category: :importers do
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let_it_be(:filepath) { File.join(Dir.tmpdir, 'decompressed_archive_size_validator_spec.gz') }
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before(:all) do
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create_compressed_file
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end
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after(:all) do
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FileUtils.rm(filepath)
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end
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subject { described_class.new(archive_path: filepath, max_bytes: max_bytes) }
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describe '#valid?' do
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let(:max_bytes) { 1 }
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context 'when file does not exceed allowed decompressed size' do
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let(:max_bytes) { 20 }
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it 'returns true' do
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expect(subject.valid?).to eq(true)
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end
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context 'when waiter thread no longer exists' do
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it 'does not raise exception' do
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allow(Process).to receive(:getpgid).and_raise(Errno::ESRCH)
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expect(subject.valid?).to eq(true)
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end
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end
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end
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context 'when file exceeds allowed decompressed size' do
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it 'logs error message returns false' do
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expect(Gitlab::Import::Logger)
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.to receive(:info)
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.with(
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import_upload_archive_path: filepath,
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import_upload_archive_size: File.size(filepath),
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message: 'Decompressed archive size limit reached'
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)
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expect(subject.valid?).to eq(false)
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end
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end
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context 'when exception occurs during decompression' do
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shared_examples 'logs raised exception and terminates validator process group' do
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let(:std) { double(:std, close: nil, value: nil) }
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let(:wait_thr) { double }
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let(:wait_threads) { [wait_thr, wait_thr] }
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before do
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allow(Process).to receive(:getpgid).and_return(2)
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allow(Open3).to receive(:pipeline_r).and_return([std, wait_threads])
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allow(wait_thr).to receive(:[]).with(:pid).and_return(1)
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allow(wait_thr).to receive(:value).and_raise(exception)
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end
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it 'logs raised exception and terminates validator process group' do
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expect(Gitlab::Import::Logger)
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.to receive(:info)
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.with(
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import_upload_archive_path: filepath,
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import_upload_archive_size: File.size(filepath),
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message: error_message
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)
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expect(Process).to receive(:kill).with(-1, 2).twice
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expect(subject.valid?).to eq(false)
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end
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end
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context 'when timeout occurs' do
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let(:error_message) { 'Timeout reached during archive decompression' }
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let(:exception) { Timeout::Error }
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include_examples 'logs raised exception and terminates validator process group'
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end
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context 'when exception occurs' do
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let(:error_message) { 'Error!' }
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let(:exception) { StandardError.new(error_message) }
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include_examples 'logs raised exception and terminates validator process group'
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end
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end
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context 'archive path validation' do
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let(:filesize) { nil }
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before do
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expect(Gitlab::Import::Logger)
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.to receive(:info)
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.with(
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import_upload_archive_path: filepath,
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import_upload_archive_size: filesize,
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message: error_message
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)
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end
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context 'when archive path is traversed' do
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let(:filepath) { '/foo/../bar' }
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let(:error_message) { 'Invalid path' }
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it 'returns false' do
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expect(subject.valid?).to eq(false)
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end
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end
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context 'when archive path is not a string' do
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let(:filepath) { 123 }
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let(:error_message) { 'Invalid path' }
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it 'returns false' do
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expect(subject.valid?).to eq(false)
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end
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end
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context 'which archive path is a symlink' do
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let(:filepath) { File.join(Dir.tmpdir, 'symlink') }
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let(:error_message) { 'Archive path is a symlink or hard link' }
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before do
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FileUtils.ln_s(filepath, filepath, force: true)
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end
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it 'returns false' do
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expect(subject.valid?).to eq(false)
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end
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end
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context 'when archive path shares multiple hard links' do
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let(:filesize) { 32 }
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let(:error_message) { 'Archive path is a symlink or hard link' }
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before do
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FileUtils.link(filepath, File.join(Dir.mktmpdir, 'hard_link'))
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end
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it 'returns false' do
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expect(subject).not_to be_valid
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end
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end
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context 'when archive path is not a file' do
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let(:filepath) { Dir.mktmpdir }
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let(:filesize) { File.size(filepath) }
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let(:error_message) { 'Archive path is not a file' }
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after do
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FileUtils.rm_rf(filepath)
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end
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it 'returns false' do
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expect(subject.valid?).to eq(false)
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end
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end
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end
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end
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def create_compressed_file
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Zlib::GzipWriter.open(filepath) do |gz|
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gz.write('Hello World!')
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end
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end
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end
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