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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Ci::DecompressedGzipSizeValidator, feature_category: :importers do
let_it_be(:filepath) { File.join(Dir.tmpdir, 'decompressed_gzip_size_validator_spec.gz') }
before(:all) do
create_compressed_file
end
after(:all) do
FileUtils.rm(filepath)
end
subject { described_class.new(archive_path: filepath, max_bytes: max_bytes) }
describe '#valid?' do
let(:max_bytes) { 20 }
context 'when file does not exceed allowed decompressed size' do
it 'returns true' do
expect(subject.valid?).to eq(true)
end
context 'when the waiter thread no longer exists due to being terminated or crashing' do
it 'gracefully handles the absence of the waiter without raising exception' do
allow(Process).to receive(:getpgid).and_raise(Errno::ESRCH)
expect(subject.valid?).to eq(true)
end
end
end
context 'when file exceeds allowed decompressed size' do
let(:max_bytes) { 1 }
it 'returns false' do
expect(subject.valid?).to eq(false)
end
end
context 'when exception occurs during header readings' do
shared_examples 'raises exception and terminates validator process group' do
let(:std) { instance_double(IO, close: nil) }
let(:wait_thr) { double }
let(:wait_threads) { [wait_thr, wait_thr] }
before do
allow(Process).to receive(:getpgid).and_return(2)
allow(Open3).to receive(:pipeline_r).and_return([std, wait_threads])
allow(wait_thr).to receive(:[]).with(:pid).and_return(1)
allow(wait_thr).to receive(:value).and_raise(exception)
end
it 'terminates validator process group' do
expect(Process).to receive(:kill).with(-1, 2).twice
expect(subject.valid?).to eq(false)
end
end
context 'when timeout occurs' do
let(:exception) { Timeout::Error }
include_examples 'raises exception and terminates validator process group'
end
context 'when exception occurs' do
let(:error_message) { 'Error!' }
let(:exception) { StandardError.new(error_message) }
include_examples 'raises exception and terminates validator process group'
end
end
describe 'archive path validation' do
let(:filesize) { nil }
context 'when archive path is traversed' do
let(:filepath) { '/foo/../bar' }
it 'does not pass validation' do
expect(subject.valid?).to eq(false)
end
end
end
context 'when archive path is not a string' do
let(:filepath) { 123 }
it 'returns false' do
expect(subject.valid?).to eq(false)
end
end
context 'when archive path is a symlink' do
let(:filepath) { File.join(Dir.tmpdir, 'symlink') }
before do
FileUtils.ln_s(filepath, filepath, force: true)
end
it 'returns false' do
expect(subject.valid?).to eq(false)
end
end
context 'when archive path has multiple hard links' do
before do
FileUtils.link(filepath, File.join(Dir.mktmpdir, 'hard_link'))
end
it 'returns false' do
expect(subject).not_to be_valid
end
end
context 'when archive path is not a file' do
let(:filepath) { Dir.mktmpdir }
let(:filesize) { File.size(filepath) }
after do
FileUtils.rm_rf(filepath)
end
it 'returns false' do
expect(subject.valid?).to eq(false)
end
end
end
def create_compressed_file
Zlib::GzipWriter.open(filepath) do |gz|
gz.write('Hello World!')
end
end
end
|
