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authorRey Tucker <git@reytucker.us>2018-03-20 04:06:08 -0400
committerEugen Rochko <eugen@zeonfederated.com>2018-03-20 09:06:08 +0100
commit36b57037961383466b7f5c20b39ee68cd9f202a0 (patch)
tree3b5f496101f3fdb59f19a2a764e99a826a9d96ef /spec/lib
parentff6b8a6443c2c97d185927053bdc8816e0e03434 (diff)
request: in the event of failure, try other IPs (#6761) (#6813)
* request: in the event of failure, try other IPs (#6761)

In the case where a name has multiple A/AAAA records, we should
try subsequent records instead of immediately failing when we have a
failure on the first IP address.

This significantly improves delivery success when there are network
connectivity problems affecting only IPv4 or IPv6.

* fix method call style

* request_spec: adjust test case to use Addrinfo

* request: Request/open: move private addr check to within begin/rescue

* request_spec: add case to test failover, fix exception check

* Double Addrinfo.foreach so that it correctly yields instances
Diffstat (limited to 'spec/lib')
-rw-r--r--spec/lib/request_spec.rb11
1 files changed, 10 insertions, 1 deletions
diff --git a/spec/lib/request_spec.rb b/spec/lib/request_spec.rb
index dc7daa52c..5da357c55 100644
--- a/spec/lib/request_spec.rb
+++ b/spec/lib/request_spec.rb
@@ -48,6 +48,13 @@ describe Request do
         expect(a_request(:get, 'http://example.com')).to have_been_made.once
       end
 
+      it 'executes a HTTP request when the first address is private' do
+        allow(Addrinfo).to receive(:foreach).with('example.com', nil, nil, :SOCK_STREAM)
+                                            .and_yield(Addrinfo.new(["AF_INET", 0, "example.com", "0.0.0.0"], :PF_INET, :SOCK_STREAM))
+                                            .and_yield(Addrinfo.new(["AF_INET6", 0, "example.com", "2001:4860:4860::8844"], :PF_INET6, :SOCK_STREAM))
+        expect(a_request(:get, 'http://example.com')).to have_been_made.once
+      end
+
       it 'sets headers' do
         expect(a_request(:get, 'http://example.com').with(headers: subject.headers)).to have_been_made
       end
@@ -61,7 +68,9 @@ describe Request do
       end
 
       it 'raises Mastodon::ValidationError' do
-        allow(IPSocket).to receive(:getaddress).with('example.com').and_return('0.0.0.0')
+        allow(Addrinfo).to receive(:foreach).with('example.com', nil, nil, :SOCK_STREAM)
+                                            .and_yield(Addrinfo.new(["AF_INET", 0, "example.com", "0.0.0.0"], :PF_INET, :SOCK_STREAM))
+                                            .and_yield(Addrinfo.new(["AF_INET6", 0, "example.com", "2001:db8::face"], :PF_INET6, :SOCK_STREAM))
         expect{ subject.perform }.to raise_error Mastodon::ValidationError
       end
     end