net/http, net/ftp: skip SSL/TLS session resumption tests

Due to a bug in OpenSSL 1.1.0h[1] (it's only in this specific version;
it was introduced just before the release and is already fixed in their
stable branch), the callback set by SSLContext#session_new_cb= does not
get called for clients, making net/http and net/ftp not attempt session
resumption.

Let's disable the affected test cases for now. Another option would be
to fallback to using SSLSocket#session as we did before r64234. But
since only a single version is affected and hopefully a new stable
version containing the fix will be released in near future, I chose not
to add such workaround code to lib/.

[1] https://github.com/openssl/openssl/pull/5967

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64252 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/net/ftp/test_ftp.rb

@@ -1755,6 +1755,7 @@ EOF
       server = TCPServer.new(SERVER_ADDR, 0)
       port = server.addr[1]
       commands = []
+      session_reused_for_data_connection = nil
       binary_data = (0..0xff).map {|i| i.chr}.join * 4 * 3
       @thread = Thread.start do
         sock = server.accept
@@ -1793,6 +1794,7 @@ EOF
             conn = OpenSSL::SSL::SSLSocket.new(conn, ctx)
             conn.sync_close = true
             conn.accept
+            session_reused_for_data_connection = conn.session_reused?
             binary_data.scan(/.{1,1024}/nm) do |s|
               conn.print(s)
             end
@@ -1823,6 +1825,11 @@ EOF
         assert_match(/\A(PORT|EPRT) /, commands.shift)
         assert_equal("RETR foo\r\n", commands.shift)
         assert_equal(nil, commands.shift)
+        # FIXME: The new_session_cb is known broken for clients in OpenSSL 1.1.0h.
+        # See https://github.com/openssl/openssl/pull/5967 for details.
+        if OpenSSL::OPENSSL_LIBRARY_VERSION !~ /OpenSSL 1.1.0h/
+          assert_equal(true, session_reused_for_data_connection)
+        end
       ensure
         ftp.close
       end
@@ -1832,6 +1839,7 @@ EOF
       server = TCPServer.new(SERVER_ADDR, 0)
       port = server.addr[1]
       commands = []
+      session_reused_for_data_connection = nil
       binary_data = (0..0xff).map {|i| i.chr}.join * 4 * 3
       @thread = Thread.start do
         sock = server.accept
@@ -1869,6 +1877,7 @@ EOF
             conn = OpenSSL::SSL::SSLSocket.new(conn, ctx)
             conn.sync_close = true
             conn.accept
+            session_reused_for_data_connection = conn.session_reused?
             binary_data.scan(/.{1,1024}/nm) do |s|
               conn.print(s)
             end
@@ -1900,6 +1909,10 @@ EOF
         assert_match(/\A(PASV|EPSV)\r\n/, commands.shift)
         assert_equal("RETR foo\r\n", commands.shift)
         assert_equal(nil, commands.shift)
+        # FIXME: The new_session_cb is known broken for clients in OpenSSL 1.1.0h.
+        if OpenSSL::OPENSSL_LIBRARY_VERSION !~ /OpenSSL 1.1.0h/
+          assert_equal(true, session_reused_for_data_connection)
+        end
       ensure
         ftp.close
       end

test/net/http/test_https.rb

@@ -63,6 +63,10 @@ class TestNetHTTPS < Test::Unit::TestCase
   end
 
   def test_session_reuse
+    # FIXME: The new_session_cb is known broken for clients in OpenSSL 1.1.0h.
+    # See https://github.com/openssl/openssl/pull/5967 for details.
+    skip if OpenSSL::OPENSSL_LIBRARY_VERSION =~ /OpenSSL 1.1.0h/
+
     http = Net::HTTP.new("localhost", config("port"))
     http.use_ssl = true
     http.cert_store = TEST_STORE
@@ -83,6 +87,9 @@ class TestNetHTTPS < Test::Unit::TestCase
   end
 
   def test_session_reuse_but_expire
+    # FIXME: The new_session_cb is known broken for clients in OpenSSL 1.1.0h.
+    skip if OpenSSL::OPENSSL_LIBRARY_VERSION =~ /OpenSSL 1.1.0h/
+
     http = Net::HTTP.new("localhost", config("port"))
     http.use_ssl = true
     http.cert_store = TEST_STORE