Merge branch 'feature/new-rpc-ws-clients' into feature/son-for-ethereum

libraries/plugins/peerplays_sidechain/common/rpc_client.cpp

@@ -1,10 +1,15 @@
 #include <graphene/peerplays_sidechain/common/rpc_client.hpp>
 
+#include <regex>
 #include <sstream>
 #include <string>
 
+#include <boost/asio/buffers_iterator.hpp>
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
 #include <boost/property_tree/json_parser.hpp>
 #include <boost/property_tree/ptree.hpp>
+#include <boost/xpressive/xpressive.hpp>
 
 #include <curl/curl.h>
 
@@ -18,6 +23,35 @@ rpc_client::rpc_client(std::string _url, std::string _user, std::string _passwor
       password(_password),
       debug_rpc_calls(_debug_rpc_calls),
       request_id(0) {
+
+   std::string reg_expr = "^((?P<Protocol>https|http):\\/\\/)?(?P<Host>[a-zA-Z0-9\\-\\.]+)(:(?P<Port>\\d{1,5}))?(?P<Target>\\/.+)?";
+   boost::xpressive::sregex sr = boost::xpressive::sregex::compile(reg_expr);
+
+   boost::xpressive::smatch sm;
+
+   if (boost::xpressive::regex_search(url, sm, sr)) {
+      protocol = sm["Protocol"];
+      if (protocol.empty()) {
+         protocol = "http";
+      }
+
+      host = sm["Host"];
+      if (host.empty()) {
+         host + "localhost";
+      }
+
+      port = sm["Port"];
+      if (port.empty()) {
+         port = "80";
+      }
+
+      target = sm["Target"];
+      if (target.empty()) {
+         target = "/";
+      }
+   } else {
+      elog("Invalid URL: ${url}", ("url", url));
+   }
 }
 
 std::string rpc_client::retrieve_array_value_from_reply(std::string reply_str, std::string array_path, uint32_t idx) {
@@ -98,57 +132,65 @@ std::string rpc_client::send_post_request(std::string method, std::string params
    return "";
 }
 
-static size_t write_callback(char *ptr, size_t size, size_t nmemb, rpc_reply *reply) {
-   size_t retval = 0;
-   if (reply != nullptr) {
-      reply->body.append(ptr, size * nmemb);
-      retval = size * nmemb;
-   }
-   return retval;
-}
-
 rpc_reply rpc_client::send_post_request(std::string body, bool show_log) {
 
-   struct curl_slist *headers = nullptr;
-   headers = curl_slist_append(headers, "Accept: application/json");
-   headers = curl_slist_append(headers, "Content-Type: application/json");
-   headers = curl_slist_append(headers, "charset: utf-8");
+   // The io_context is required for all I/O
+   boost::beast::net::io_context ioc;
 
-   CURL *curl = curl_easy_init();
+   // These objects perform our I/O
+   boost::beast::net::ip::tcp::resolver resolver(ioc);
+   boost::beast::tcp_stream stream(ioc);
 
-   curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
-   if (url.find("https://", 0) == 0) {
-      curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, false);
-      curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, false);
-   }
+   // Look up the domain name
+   auto const results = resolver.resolve(host, port);
 
-   if (!user.empty()) {
-      curl_easy_setopt(curl, CURLOPT_USERNAME, user.c_str());
-      curl_easy_setopt(curl, CURLOPT_PASSWORD, password.c_str());
-   }
+   // Make the connection on the IP address we get from a lookup
+   stream.connect(results);
 
-   curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
-   curl_easy_setopt(curl, CURLOPT_POSTFIELDS, body.c_str());
+   // Set up an HTTP GET request message
+   boost::beast::http::request<boost::beast::http::string_body> req{boost::beast::http::verb::post, target, 11};
+   req.set(boost::beast::http::field::host, host + ":" + port);
+   req.set(boost::beast::http::field::accept, "application/json");
+   req.set(boost::beast::http::field::content_type, "application/json");
+   req.set(boost::beast::http::field::content_encoding, "utf-8");
+   req.set(boost::beast::http::field::content_length, body.length());
+   req.body() = body;
 
-   //curl_easy_setopt(curl, CURLOPT_VERBOSE, true);
+   // Send the HTTP request to the remote host
+   boost::beast::http::write(stream, req);
 
+   // This buffer is used for reading and must be persisted
+   boost::beast::flat_buffer buffer;
+
+   // Declare a container to hold the response
+   boost::beast::http::response<boost::beast::http::dynamic_body> res;
+
+   // Receive the HTTP response
+   boost::beast::http::read(stream, buffer, res);
+
+   //// Write the message to standard out
+   //std::cout << res << std::endl;
+
+   // Gracefully close the socket
+   boost::beast::error_code ec;
+   stream.socket().shutdown(boost::asio::ip::tcp::socket::shutdown_both, ec);
+
+   // not_connected happens sometimes
+   // so don't bother reporting it.
+   //
+   if (ec && ec != boost::beast::errc::not_connected)
+      throw boost::beast::system_error{ec};
+
+   std::string rbody{boost::asio::buffers_begin(res.body().data()),
+                     boost::asio::buffers_end(res.body().data())};
    rpc_reply reply;
-
-   curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
-   curl_easy_setopt(curl, CURLOPT_WRITEDATA, &reply);
-
-   curl_easy_perform(curl);
-
-   curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &reply.status);
-
-   curl_easy_cleanup(curl);
-   curl_slist_free_all(headers);
+   reply.status = 200;
+   reply.body = rbody;
 
    if (show_log) {
       ilog("### Request URL:    ${url}", ("url", url));
       ilog("### Request:        ${body}", ("body", body));
-      std::stringstream ss(std::string(reply.body.begin(), reply.body.end()));
-      ilog("### Response:       ${ss}", ("ss", ss.str()));
+      ilog("### Response:       ${rbody}", ("rbody", rbody));
    }
 
    return reply;

libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/common/rpc_client.hpp

@@ -20,6 +20,11 @@ protected:
    std::string send_post_request(std::string method, std::string params, bool show_log);
 
    std::string url;
+   std::string protocol;
+   std::string host;
+   std::string port;
+   std::string target;
+
    std::string user;
    std::string password;
    bool debug_rpc_calls;