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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::ImportExport::FileImporter do
include ExportFileHelper
let(:shared) { Gitlab::ImportExport::Shared.new(nil) }
let(:storage_path) { "#{Dir.tmpdir}/file_importer_spec" }
let(:valid_file) { "#{shared.export_path}/valid.json" }
let(:symlink_file) { "#{shared.export_path}/invalid.json" }
let(:hidden_symlink_file) { "#{shared.export_path}/.hidden" }
let(:subfolder_symlink_file) { "#{shared.export_path}/subfolder/invalid.json" }
let(:evil_symlink_file) { "#{shared.export_path}/.\nevil" }
let(:custom_mode_symlink_file) { "#{shared.export_path}/symlink.mode" }
before do
stub_const('Gitlab::ImportExport::FileImporter::MAX_RETRIES', 0)
stub_uploads_object_storage(FileUploader)
allow_next_instance_of(Gitlab::ImportExport) do |instance|
allow(instance).to receive(:storage_path).and_return(storage_path)
end
allow_next_instance_of(Gitlab::ImportExport::CommandLineUtil) do |instance|
allow(instance).to receive(:untar_zxf).and_return(true)
end
allow_next_instance_of(Gitlab::ImportExport::Shared) do |instance|
allow(instance).to receive(:relative_archive_path).and_return('test')
end
allow(SecureRandom).to receive(:hex).and_return('abcd')
setup_files
end
after do
FileUtils.rm_rf(storage_path)
end
context 'normal run' do
before do
described_class.import(importable: build(:project), archive_file: '', shared: shared)
end
it 'removes symlinks in root folder' do
expect(File.exist?(symlink_file)).to be false
end
it 'removes hidden symlinks in root folder' do
expect(File.exist?(hidden_symlink_file)).to be false
end
it 'removes evil symlinks in root folder' do
expect(File.exist?(evil_symlink_file)).to be false
end
it 'removes symlinks in subfolders' do
expect(File.exist?(subfolder_symlink_file)).to be false
end
it 'removes symlinks without any file permissions' do
expect(File.exist?(custom_mode_symlink_file)).to be false
end
it 'does not remove a valid file' do
expect(File.exist?(valid_file)).to be true
end
it 'does not change a valid file permissions' do
expect(file_permissions(valid_file)).not_to eq(0000)
end
it 'creates the file in the right subfolder' do
expect(shared.export_path).to include('test/abcd')
end
end
context 'error' do
before do
allow_next_instance_of(described_class) do |instance|
allow(instance).to receive(:wait_for_archived_file).and_raise(StandardError)
end
described_class.import(importable: build(:project), archive_file: '', shared: shared)
end
it 'removes symlinks in root folder' do
expect(File.exist?(symlink_file)).to be false
end
it 'removes hidden symlinks in root folder' do
expect(File.exist?(hidden_symlink_file)).to be false
end
it 'removes symlinks in subfolders' do
expect(File.exist?(subfolder_symlink_file)).to be false
end
it 'does not remove a valid file' do
expect(File.exist?(valid_file)).to be true
end
end
context 'when file exceeds acceptable decompressed size' do
let(:project) { create(:project) }
let(:shared) { Gitlab::ImportExport::Shared.new(project) }
let(:filepath) { File.join(Dir.tmpdir, 'file_importer_spec.gz') }
subject { described_class.new(importable: project, archive_file: filepath, shared: shared) }
before do
Zlib::GzipWriter.open(filepath) do |gz|
gz.write('Hello World!')
end
end
context 'when validate_import_decompressed_archive_size feature flag is enabled' do
before do
stub_feature_flags(validate_import_decompressed_archive_size: true)
allow(Gitlab::ImportExport::DecompressedArchiveSizeValidator).to receive(:max_bytes).and_return(1)
end
it 'returns false' do
expect(subject.import).to eq(false)
expect(shared.errors.join).to eq('Decompressed archive size validation failed.')
end
end
context 'when validate_import_decompressed_archive_size feature flag is disabled' do
before do
stub_feature_flags(validate_import_decompressed_archive_size: false)
end
it 'skips validation' do
expect(subject).to receive(:validate_decompressed_archive_size).never
subject.import
end
end
end
def setup_files
FileUtils.mkdir_p("#{shared.export_path}/subfolder/")
FileUtils.touch(valid_file)
FileUtils.ln_s(valid_file, symlink_file)
FileUtils.ln_s(valid_file, subfolder_symlink_file)
FileUtils.ln_s(valid_file, hidden_symlink_file)
FileUtils.ln_s(valid_file, evil_symlink_file)
FileUtils.ln_s(valid_file, custom_mode_symlink_file)
FileUtils.chmod_R(0000, custom_mode_symlink_file)
end
end
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