attempt to fix em-http-request

em-http-request-1.1.7/lib/em-http/http_connection.rb

@@ -40,26 +40,14 @@ def unbind(reason=nil)
     # TLS verification support, original implementation by Mislav Marohnić
     # https://github.com/lostisland/faraday/blob/63cf47c95b573539f047c729bd9ad67560bc83ff/lib/faraday/adapter/em_http_ssl_patch.rb
     def ssl_verify_peer(cert_string)
+      @openssl_proposed_certificates ||= []
       print("ssl_verify_peer caller:\n#{caller}\nverifying cert_string:\n#{cert_string}")
-      cert = nil
       begin
         cert = OpenSSL::X509::Certificate.new(cert_string)
+        @openssl_proposed_certificates << cert
       rescue OpenSSL::X509::CertificateError
         return false
       end
-
-      @last_seen_cert = cert
-
-      if certificate_store.verify(@last_seen_cert)
-        begin
-          certificate_store.add_cert(@last_seen_cert)
-        rescue OpenSSL::X509::StoreError => e
-          raise e unless e.message == 'cert already in hash table'
-        end
-        true
-      else
-        raise OpenSSL::SSL::SSLError.new(%(unable to verify the server certificate for "#{host}", certificate #{cert_string}))
-      end
     end
 
     def ssl_handshake_completed
@@ -69,11 +57,22 @@ def ssl_handshake_completed
         return true
       end
 
-      unless OpenSSL::SSL.verify_certificate_identity(@last_seen_cert, host)
+      # TODO how do you know that you’re actually communicating with someone who has the private key for this certificate?
+
+      puts("ssl_handshake_completed, openssl proposed", @openssl_proposed_certificates)
+
+      server_certificate = @openssl_proposed_certificates.last
+      other_certificates = @openssl_proposed_certificates[0...-1]
+
+      unless certificate_store.verify(server_certificate, other_certificates)
+        raise OpenSSL::SSL::SSLError.new(%(unable to verify the server certificate for "#{host}"))
+      end
+
+      unless OpenSSL::SSL.verify_certificate_identity(server_certificate, host)
         raise OpenSSL::SSL::SSLError.new(%(host "#{host}" does not match the server certificate))
-      else
-        true
       end
+
+      true
     end
 
     def verify_peer?

server_cert.crt

@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

server_cert_2.pem

@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----