Add latest changes from gitlab-org/gitlab@master

1 files changed, 30 insertions, 0 deletions

diff --git a/spec/support/helpers/dns_helpers.rb b/spec/support/helpers/dns_helpers.rb
new file mode 100644
index 00000000000..941b57c2c97
--- /dev/null
+++ b/spec/support/helpers/dns_helpers.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module DnsHelpers
+  def block_dns!
+    stub_all_dns!
+    stub_invalid_dns!
+    permit_local_dns!
+  end
+
+  def permit_dns!
+    allow(Addrinfo).to receive(:getaddrinfo).and_call_original
+  end
+
+  def stub_all_dns!
+    allow(Addrinfo).to receive(:getaddrinfo).with(anything, anything, nil, :STREAM).and_return([])
+    allow(Addrinfo).to receive(:getaddrinfo).with(anything, anything, nil, :STREAM, anything, anything).and_return([])
+  end
+
+  def stub_invalid_dns!
+    allow(Addrinfo).to receive(:getaddrinfo).with(/foobar\.\w|(\d{1,3}\.){4,}\d{1,3}/i, anything, nil, :STREAM) do
+      raise SocketError.new("getaddrinfo: Name or service not known")
+    end
+  end
+
+  def permit_local_dns!
+    local_addresses = /(127|10)\.0\.0\.\d{1,3}|(192\.168|172\.16)\.\d{1,3}\.\d{1,3}|0\.0\.0\.0|localhost/i
+    allow(Addrinfo).to receive(:getaddrinfo).with(local_addresses, anything, nil, :STREAM).and_call_original
+    allow(Addrinfo).to receive(:getaddrinfo).with(local_addresses, anything, nil, :STREAM, anything, anything).and_call_original
+  end
+end