adding Errno::ETIMEDOUT rescue for pagseguro

[celsodantas]

@odorcicd @bslobodin

This adds another rescue for PagSeguro in case of a timeout.

Why don't we use a HTTP client like HTTParty to avoid this?

[celsodantas]

ping @ntalbott you too buddy

[bslobodin]

I was thinking it may be time to start grouping these globally into something like TimeoutExceptions, ConnectionExceptions and NetHTTPExceptions, similar to what we do at Shopify. For the purposes of this PR, however, 🚀.

[celsodantas]

The problem with Net::HTTP is that it has a huge quantity of possible exceptions. Using a HTTParty-like gem would handle that for us. But I like the grouping thing, if you guys are not ok with adding a dependency.

[ntalbott]

I'm seriously considering replacing ActiveMerchant::Connection with https://github.com/excon/excon, but it will be a big change. Based on past experience with HTTParty I'd never recommend it for a project like ActiveMerchant (awesome for playing with an API, too smart for its own good once you get serious).

That said, with https://github.com/Shopify/offsite_payments splitting off, the HTTP library used by offsites is no longer as much of a concern for me 😁

[celsodantas]

Yeah, I don't care about the gem, actually. I'm fine with excon. Just would like to use a wrap around Net::HTTP.

[ntalbott]

ActiveMerchant integrations have been extracted into https://github.com/Shopify/offsite_payments. This PR has been moved (via reference) to the new repo - please follow up on it there.