1 files changed, 90 insertions, 0 deletions
diff --git a/src/curl_wrapper.cpp b/src/curl_wrapper.cpp
new file mode 100644
index 0000000..ef724b9
--- /dev/null
+++ b/src/curl_wrapper.cpp
@@ -0,0 +1,90 @@
+/*  This file is part of mastodonpp.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "curl_wrapper.hpp"
+#include "exceptions.hpp"
+
+namespace mastodonpp
+{
+
+bool curl_initialized{false};
+
+CURLWrapper::CURLWrapper()
+    : _curl_buffer_error{}
+{
+    if (!curl_initialized)
+    {
+        curl_global_init(CURL_GLOBAL_ALL); // NOLINT(hicpp-signed-bitwise)
+        curl_initialized = true;
+    }
+    _connection = curl_easy_init();
+    setup_curl();
+}
+CURLWrapper::~CURLWrapper() noexcept
+{
+    curl_easy_cleanup(_connection);
+
+    if (curl_initialized)
+    {
+        curl_global_cleanup();
+        curl_initialized = false;
+    }
+}
+
+int CURLWrapper::writer(char *data, size_t size, size_t nmemb, string *writerData)
+{
+    if(writerData == nullptr)
+    {
+        return 0;
+    }
+
+    writerData->append(data, size*nmemb);
+
+    return static_cast<int>(size * nmemb);
+}
+
+void CURLWrapper::setup_curl()
+{
+    if (_connection == nullptr)
+    {
+        throw CURLException{CURLE_FAILED_INIT, "Failed to initialize curl."};
+    }
+
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
+    CURLcode code{curl_easy_setopt(_connection, CURLOPT_ERRORBUFFER,
+                                   _curl_buffer_error)};
+    if (code != CURLE_OK)
+    {
+        throw CURLException{code, "Failed to set error buffer."};
+    }
+
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
+    code = curl_easy_setopt(_connection, CURLOPT_WRITEFUNCTION, writer);
+    if (code != CURLE_OK)
+    {
+        throw CURLException{code, "Failed to set writer", _curl_buffer_error};
+    }
+
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
+    code = curl_easy_setopt(_connection, CURLOPT_WRITEDATA, &_curl_buffer);
+    if (code != CURLE_OK)
+    {
+        throw CURLException{code, "Failed to set write data",
+                _curl_buffer_error};
+    }
+}
+
+} // namespace mastodonpp