slightly better error handling

commands.cpp

@@ -39,7 +39,7 @@ void cmd::handle_regular_message(context *ctx, td_api::message &msg) {
           nullptr /*reply_to*/, nullptr /*options*/,
           nullptr, // reply_markup
           static_cast<td_api::object_ptr<td_api::InputMessageContent>>(td_api::make_object<td_api::inputMessageText>(
-            std::move(td_api::make_object<td_api::formattedText>(url, std::move(std::vector<td_api::object_ptr<td_api::textEntity>>()))),
+            std::move(td_api::make_object<td_api::formattedText>(!url.empty() ? url : "error :(", std::move(std::vector<td_api::object_ptr<td_api::textEntity>>()))),
             nullptr /*link_preview_options*/, false /*clear_draft*/
           ))
         ), {});
@@ -50,7 +50,7 @@ void cmd::handle_regular_message(context *ctx, td_api::message &msg) {
           nullptr /*reply_to*/, nullptr /*options*/,
           nullptr, // reply_markup
           static_cast<td_api::object_ptr<td_api::InputMessageContent>>(td_api::make_object<td_api::inputMessageText>(
-            std::move(td_api::make_object<td_api::formattedText>("произошла какая-то ошибка :(", std::move(std::vector<td_api::object_ptr<td_api::textEntity>>()))),
+            std::move(td_api::make_object<td_api::formattedText>("error :(", std::move(std::vector<td_api::object_ptr<td_api::textEntity>>()))),
             nullptr /*link_preview_options*/, false /*clear_draft*/
           ))
         ), {});
@@ -137,7 +137,7 @@ void cmd::handle_callback_query(context *ctx, td_api::updateNewInlineCallbackQue
         nullptr, // reply_markup
         static_cast<td_api::object_ptr<td_api::InputMessageContent>>(td_api::make_object<td_api::inputMessageText>(
           td_api::make_object<td_api::formattedText>(
-            url,
+            !url.empty() ? url : "error :(",
             std::move(std::vector<td_api::object_ptr<td_api::textEntity>>())
           ),
           td_api::make_object<td_api::linkPreviewOptions>(true, "", false, false, false),
@@ -171,7 +171,7 @@ void cmd::handle_chosen_inline_result(context *ctx, td_api::updateNewChosenInlin
       nullptr, // reply_markup
       static_cast<td_api::object_ptr<td_api::InputMessageContent>>(td_api::make_object<td_api::inputMessageText>(
         td_api::make_object<td_api::formattedText>(
-          url,
+          !url.empty() ? url : "error :(",
           std::move(std::vector<td_api::object_ptr<td_api::textEntity>>())
         ),
         td_api::make_object<td_api::linkPreviewOptions>(true, "", false, false, false),
@@ -189,7 +189,7 @@ bool cmd::shorten_link(std::string link, context *ctx, std::function<void(std::s
     return false;
   }
   char *escapedParam = curl_easy_escape(req, link.data(), link.size());
-  std::string url("https://slavasil.ru/create?url=");
+  std::string url("https://xurl.pw/create?url=");
   url += escapedParam;
   curl_free(escapedParam);
   curl_easy_setopt(req, CURLOPT_URL, url.c_str());
@@ -198,9 +198,16 @@ bool cmd::shorten_link(std::string link, context *ctx, std::function<void(std::s
   curl_easy_setopt(req, CURLOPT_PRIVATE, ctx);
   curl_easy_setopt(req, CURLOPT_FOLLOWLOCATION, 1);
   ctx->requests.emplace(req, [cb, req, ctx](active_request &r){
+    long statusCode;
+    curl_easy_getinfo(req, CURLINFO_RESPONSE_CODE, &statusCode);
+    if (statusCode == 200) {
       std::string shortenedUrl(r.receivedData.data(), r.receivedData.size());
       spdlog::info("Received data from HTTP server: {}", shortenedUrl);
       cb(shortenedUrl);
+    } else {
+      spdlog::error("Shortener returned error: {}", statusCode);
+      cb("");
+    }
     ctx->requests.erase(req);
   });
   CURLMcode r = curl_multi_add_handle(ctx->curl, req);

main.cpp

@@ -334,7 +334,7 @@ void check_curl_multi_info(context *ctx) {
 }
 
 size_t curl_receive_cb(char *ptr, size_t size, size_t nmemb, CURL *curl) {
-  spdlog::debug("received {} bytes from server: '{}'", nmemb, std::string(ptr, nmemb));
+  spdlog::debug("received {} bytes from: '{}'", nmemb, nmemb <= 50 ? std::string(ptr, nmemb) : std::string(ptr, 47)+"...");
   
   context *ctx = nullptr;
   curl_easy_getinfo(curl, CURLINFO_PRIVATE, &ctx);