Add a config option allowing to disable SSL.

webcc/config.h.example

@@ -3,7 +3,7 @@
 
 // Compile configurations.
 
-// Set 0 to disable logging.
+// Set 1/0 to enable/disable logging.
 #define WEBCC_ENABLE_LOG 1
 
 #if WEBCC_ENABLE_LOG
@@ -11,4 +11,7 @@
 #define WEBCC_LOG_LEVEL 2
 #endif
 
+// Set 1/0 to enable/disable SSL/HTTPS.
+#define WEBCC_ENABLE_SSL 1
+
 #endif  // WEBCC_CONFIG_H_

webcc/config.h.in

@@ -2,11 +2,18 @@
 #define WEBCC_CONFIG_H_
 
 // Compile configurations.
+// This file is auto-generated by CMake during configuration
+// from config.h.in.
 
+// Set 1/0 to enable/disable logging.
 #define WEBCC_ENABLE_LOG @WEBCC_ENABLE_LOG@
 
 #if WEBCC_ENABLE_LOG
+// 0:VERB, 1:INFO, 2:WARN, 3:ERRO or 4:FATA
 #define WEBCC_LOG_LEVEL @WEBCC_LOG_LEVEL@
 #endif
 
+// Set 1/0 to enable/disable SSL/HTTPS.
+#define WEBCC_ENABLE_SSL @WEBCC_ENABLE_SSL@
+
 #endif  // WEBCC_CONFIG_H_

webcc/http_client.cc

@@ -73,8 +73,13 @@ void HttpClient::Close() {
 
 Error HttpClient::Connect(HttpRequestPtr request) {
   if (request->url().scheme() == "https") {
+#if WEBCC_ENABLE_SSL
     socket_.reset(new HttpSslSocket{ io_context_, ssl_verify_ });
     return DoConnect(request, kPort443);
+#else
+    LOG_ERRO("SSL/HTTPS support is not enabled.");
+    return kSchemaError;
+#endif  // WEBCC_ENABLE_SSL
   } else {
     socket_.reset(new HttpSocket{ io_context_ });
     return DoConnect(request, kPort80);

webcc/http_socket.cc

@@ -6,8 +6,6 @@
 
 #include "webcc/logger.h"
 
-namespace ssl = boost::asio::ssl;
-
 namespace webcc {
 
 // -----------------------------------------------------------------------------
@@ -37,6 +35,10 @@ void HttpSocket::Close(boost::system::error_code* ec) {
 
 // -----------------------------------------------------------------------------
 
+#if WEBCC_ENABLE_SSL
+
+namespace ssl = boost::asio::ssl;
+
 HttpSslSocket::HttpSslSocket(boost::asio::io_context& io_context,
                              bool ssl_verify)
     : ssl_context_(ssl::context::sslv23),
@@ -89,4 +91,6 @@ void HttpSslSocket::Handshake(const std::string& host,
   }
 }
 
+#endif  // WEBCC_ENABLE_SSL
+
 }  // namespace webcc

webcc/http_socket.h

@@ -4,10 +4,14 @@
 #include <vector>
 
 #include "boost/asio/ip/tcp.hpp"
-#include "boost/asio/ssl.hpp"
 
+#include "webcc/config.h"
 #include "webcc/http_request.h"
 
+#if WEBCC_ENABLE_SSL
+#include "boost/asio/ssl.hpp"
+#endif  // WEBCC_ENABLE_SSL
+
 namespace webcc {
 
 // -----------------------------------------------------------------------------
@@ -58,6 +62,8 @@ private:
 
 // -----------------------------------------------------------------------------
 
+#if WEBCC_ENABLE_SSL
+
 class HttpSslSocket : public HttpSocketBase {
 public:
   explicit HttpSslSocket(boost::asio::io_context& io_context,
@@ -85,6 +91,8 @@ private:
   bool ssl_verify_;
 };
 
+#endif  // WEBCC_ENABLE_SSL
+
 }  // namespace webcc
 
 #endif  // WEBCC_HTTP_SOCKET_H_