Possibility to set HTTPS proxy scheme per request. aws#2

Author: Jokser

aws-cpp-sdk-core/include/aws/core/client/ClientConfiguration.h

@@ -56,6 +56,10 @@ namespace Aws
         {
             ClientConfigurationPerRequest() : proxyPort(0) {}
 
+            /**
+            * If you have users going through a proxy, set the proxy scheme here. Default HTTP
+            */
+            Aws::Http::Scheme proxyScheme;
             /**
              * If you have users going through a proxy, set the host here.
              */

aws-cpp-sdk-core/source/http/curl/CurlHttpClient.cpp

@@ -680,7 +680,8 @@ std::shared_ptr<HttpResponse> CurlHttpClient::MakeRequest(const std::shared_ptr<
         if (usingProxy)
         {
             Aws::StringStream ss;
-            ss << m_proxyScheme << "://" << try_redefine(m_proxyHost, requestConfiguration.proxyHost);
+            ss << try_redefine(m_proxyScheme, Aws::String(SchemeMapper::ToString(requestConfiguration.proxyScheme)))
+              << "://" << try_redefine(m_proxyHost, requestConfiguration.proxyHost);
             curl_easy_setopt(connectionHandle, CURLOPT_PROXY, ss.str().c_str());
             curl_easy_setopt(connectionHandle, CURLOPT_PROXYPORT, (long) try_redefine(m_proxyPort, requestConfiguration.proxyPort, 0U));
             if (!m_proxyUserName.empty() || !m_proxyPassword.empty())