chinwagsocial/spec/models/concerns/remotable_spec.rb
Akihiko Odaki 40e5d2303b Validate HTTP response length while receiving (#6891)
to_s method of HTTP::Response keeps blocking while it receives the whole
content, no matter how it is big. This means it may waste time to receive
unacceptably large files. It may also consume memory and disk in the
process. This solves the inefficency by checking response length while
receiving.
2018-03-26 14:02:10 +02:00

208 lines
6.1 KiB
Ruby

# frozen_string_literal: true
require 'rails_helper'
RSpec.describe Remotable do
class Foo
def initialize
@attrs = {}
end
def [](arg)
@attrs[arg]
end
def []=(arg1, arg2)
@attrs[arg1] = arg2
end
def hoge=(arg); end
def hoge_file_name=(arg); end
def has_attribute?(arg); end
def self.attachment_definitions
{ hoge: nil }
end
end
context 'Remotable module is included' do
before do
class Foo
include Remotable
remotable_attachment :hoge, 1.kilobyte
end
end
let(:attribute_name) { "#{hoge}_remote_url".to_sym }
let(:code) { 200 }
let(:file) { 'filename="foo.txt"' }
let(:foo) { Foo.new }
let(:headers) { { 'content-disposition' => file } }
let(:hoge) { :hoge }
let(:url) { 'https://google.com' }
let(:request) do
stub_request(:get, url)
.to_return(status: code, headers: headers)
end
it 'defines a method #hoge_remote_url=' do
expect(foo).to respond_to(:hoge_remote_url=)
end
it 'defines a method #reset_hoge!' do
expect(foo).to respond_to(:reset_hoge!)
end
describe '#hoge_remote_url' do
before do
request
end
it 'always returns arg' do
[nil, '', [], {}].each do |arg|
expect(foo.hoge_remote_url = arg).to be arg
end
end
context 'Addressable::URI::InvalidURIError raised' do
it 'makes no request' do
allow(Addressable::URI).to receive_message_chain(:parse, :normalize)
.with(url).with(no_args).and_raise(Addressable::URI::InvalidURIError)
foo.hoge_remote_url = url
expect(request).not_to have_been_requested
end
end
context 'scheme is neither http nor https' do
let(:url) { 'ftp://google.com' }
it 'makes no request' do
foo.hoge_remote_url = url
expect(request).not_to have_been_requested
end
end
context 'parsed_url.host is empty' do
it 'makes no request' do
parsed_url = double(scheme: 'https', host: double(empty?: true))
allow(Addressable::URI).to receive_message_chain(:parse, :normalize)
.with(url).with(no_args).and_return(parsed_url)
foo.hoge_remote_url = url
expect(request).not_to have_been_requested
end
end
context 'foo[attribute_name] == url' do
it 'makes no request' do
allow(foo).to receive(:[]).with(attribute_name).and_return(url)
foo.hoge_remote_url = url
expect(request).not_to have_been_requested
end
end
context "scheme is https, parsed_url.host isn't empty, and foo[attribute_name] != url" do
it 'makes a request' do
foo.hoge_remote_url = url
expect(request).to have_been_requested
end
context 'response.code != 200' do
let(:code) { 500 }
it 'calls not send' do
expect(foo).not_to receive(:send).with("#{hoge}=", any_args)
expect(foo).not_to receive(:send).with("#{hoge}_file_name=", any_args)
foo.hoge_remote_url = url
end
end
context 'response.code == 200' do
let(:code) { 200 }
context 'response contains headers["content-disposition"]' do
let(:file) { 'filename="foo.txt"' }
let(:headers) { { 'content-disposition' => file } }
it 'calls send' do
string_io = StringIO.new('')
extname = '.txt'
basename = '0123456789abcdef'
allow(SecureRandom).to receive(:hex).and_return(basename)
allow(StringIO).to receive(:new).with(anything).and_return(string_io)
expect(foo).to receive(:send).with("#{hoge}=", string_io)
expect(foo).to receive(:send).with("#{hoge}_file_name=", basename + extname)
foo.hoge_remote_url = url
end
end
context 'if has_attribute?' do
it 'calls foo[attribute_name] = url' do
allow(foo).to receive(:has_attribute?).with(attribute_name).and_return(true)
expect(foo).to receive('[]=').with(attribute_name, url)
foo.hoge_remote_url = url
end
end
context 'unless has_attribute?' do
it 'calls not foo[attribute_name] = url' do
allow(foo).to receive(:has_attribute?)
.with(attribute_name).and_return(false)
expect(foo).not_to receive('[]=').with(attribute_name, url)
foo.hoge_remote_url = url
end
end
end
context 'an error raised during the request' do
let(:request) { stub_request(:get, url).to_raise(error_class) }
error_classes = [
HTTP::TimeoutError,
HTTP::ConnectionError,
OpenSSL::SSL::SSLError,
Paperclip::Errors::NotIdentifiedByImageMagickError,
Addressable::URI::InvalidURIError,
]
error_classes.each do |error_class|
let(:error_class) { error_class }
it 'calls Rails.logger.debug' do
expect(Rails.logger).to receive(:debug).with(/^Error fetching remote #{hoge}: /)
foo.hoge_remote_url = url
end
end
end
end
end
describe '#reset_hoge!' do
context 'if url.blank?' do
it 'returns nil, without clearing foo[attribute_name] and calling #hoge_remote_url=' do
url = nil
expect(foo).not_to receive(:send).with(:hoge_remote_url=, url)
foo[attribute_name] = url
expect(foo.reset_hoge!).to be_nil
expect(foo[attribute_name]).to be_nil
end
end
context 'unless url.blank?' do
it 'clears foo[attribute_name] and calls #hoge_remote_url=' do
foo[attribute_name] = url
expect(foo).to receive(:send).with(:hoge_remote_url=, url)
foo.reset_hoge!
expect(foo[attribute_name]).to be ''
end
end
end
end
end