Rename info_hash method and use it where adequate

toREST/include/torrent.hpp

@@ -11,13 +11,10 @@ namespace tr {
 namespace torrent {
 template <class torrent_t>
 static nlohmann::json to_json(torrent_t torrent) {
-  std::stringstream ss; // TODO optimize
-  ss << torrent.info_hash();
-  const std::string hash = ss.str();
   const auto status = torrent.status(
       torrent.query_name |
       torrent.query_save_path);
-  return {{"info_hash", hash},
+  return {{"info_hash", util::sha1::string(torrent.info_hash())},
           {"paused", status.paused},
           {"seeding", status.is_seeding},
           {"state", status.state},
@@ -46,7 +43,7 @@ void get(torrent_session &session, response resp, request req) {
   }
 
   const auto hash = req->path.substr(18, req->path.size() - 18); //TODO hacky
-  const auto torrent = session.find_torrent(util::sha1::string(hash));
+  const auto torrent = session.find_torrent(util::sha1::info_hash(hash));
 
   if (!torrent.is_valid()) {
     return respond(http::bad_request);

toREST/include/torrents.hpp

@@ -18,18 +18,23 @@ void get(torrent_session &session, response resp, request req) {
     http_response.set_status(response_code.first);
     *resp << http_response;
   };
+
   if (!session.is_valid()) {
     return respond(http::service_unavailable);
   }
-  auto torrents = session.get_torrents();
+
   auto response_object = nlohmann::json::object();
+
+  auto torrents = session.get_torrents();
   auto torrents_json = nlohmann::json::array();
   for (auto &torrent : torrents) {
     if (torrent.is_valid()) {
-      torrents_json.push_back(tr::torrent::to_json(torrent));
+      torrents_json.push_back(torrent::to_json(torrent));
     }
   }
+
   response_object["torrents"] = torrents_json;
+
   http_response.set_status(http::ok);
   http_response.set_body(response_object);
   *resp << http_response;
@@ -82,8 +87,8 @@ void del(torrent_session &session, response resp, request req) {
     }
     options = remove_files;
   }
-  
+
-  const auto handle = session.find_torrent(util::sha1::string(obj));
+  const auto handle = session.find_torrent(util::sha1::info_hash(obj));
 
   if (handle.is_valid()) {
     session.remove_torrent(handle, options);
@@ -194,12 +199,9 @@ void post(settings opts, torrent_session &session, response resp, request req) {
       params.name = obj;
   }
 
-  std::stringstream ss;
-  ss << params.info_hash;
-
   session.async_add_torrent(params);
 
-  http_response.add_header({"Location", "/session/torrents/" + ss.str()});
+  http_response.add_header({"Location", "/session/torrents/" + util::sha1::string(params.info_hash)});
   return respond(http::created);
 }
 }

toREST/include/util.hpp

@@ -41,14 +41,14 @@ public:
 };
 
 struct sha1 {
-  static auto string(const std::string &hex_str) {
+  static auto info_hash(const std::string &hex_str) {
     libtorrent::sha1_hash sha1_hash;
     std::stringstream ss;
     ss << hex_str;
     ss >> sha1_hash;
     return sha1_hash;
   };
-  static auto info_hash(const libtorrent::sha1_hash &info_hash) {
+  static auto string(const libtorrent::sha1_hash &info_hash) {
     std::stringstream ss;
     ss << info_hash;
     std::string res = ss.str();