Handle nodeinfo timeouts gracefully

some (especially bigger pods) are sometimes slow to respond with
statistics, so lets handle that gracefully and not mark the pods as
down.

lib/connection_tester.rb

@@ -129,14 +129,14 @@ class ConnectionTester
       version, url = ni_urls.max
       find_software_version(version, http.get(url).body)
     end
-  rescue Faraday::ClientError => e
-    raise HTTPFailure, "#{e.class}: #{e.message}"
   rescue NodeInfoFailure => e
     raise e
-  rescue JSON::Schema::ValidationError, JSON::Schema::SchemaError => e
+  rescue JSON::Schema::ValidationError, JSON::Schema::SchemaError, Faraday::TimeoutError => e
     raise NodeInfoFailure, "#{e.class}: #{e.message}"
   rescue JSON::JSONError => e
     raise NodeInfoFailure, e.message[0..255].encode(Encoding.default_external, undef: :replace)
+  rescue Faraday::ClientError => e
+    raise HTTPFailure, "#{e.class}: #{e.message}"
   rescue StandardError => e
     unexpected_error(e)
   end

spec/lib/connection_tester_spec.rb

@@ -172,6 +172,14 @@ describe ConnectionTester do
       expect { tester.nodeinfo }.to raise_error(ConnectionTester::NodeInfoFailure)
     end
 
+    it "handles timeout gracefully" do
+      ni_wellknown = {links: [{rel: "http://nodeinfo.diaspora.software/ns/schema/1.0", href: "/nodeinfo/1.0"}]}
+      stub_request(:get, "#{url}#{ConnectionTester::NODEINFO_FRAGMENT}")
+        .to_return(status: 200, body: JSON.generate(ni_wellknown))
+      stub_request(:get, "#{url}/nodeinfo/1.0").to_raise(Faraday::TimeoutError.new)
+      expect { tester.nodeinfo }.to raise_error(ConnectionTester::NodeInfoFailure)
+    end
+
     it "handles a invalid jrd document gracefully" do
       invalid_wellknown = {links: {rel: "http://nodeinfo.diaspora.software/ns/schema/1.0", href: "/nodeinfo/1.0"}}
       stub_request(:get, "#{url}#{ConnectionTester::NODEINFO_FRAGMENT}")