MXS-2208 Add simple Http library

- Built on top of Curl
- Currently only GET

maxutils/maxbase/include/maxbase/http.hh

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2022-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+#pragma once
+
+#include <maxbase/ccdefs.hh>
+#include <map>
+#include <memory>
+#include <string>
+
+namespace maxbase
+{
+
+namespace http
+{
+
+enum
+{
+    DEFAULT_CONNECT_TIMEOUT = 10, // @see https://curl.haxx.se/libcurl/c/CURLOPT_CONNECTTIMEOUT.html
+    DEFAULT_TIMEOUT = 10          // @see https://curl.haxx.se/libcurl/c/CURLOPT_TIMEOUT.html
+};
+
+struct Config
+{
+    int connect_timeout = DEFAULT_CONNECT_TIMEOUT;
+    int timeout         = DEFAULT_TIMEOUT;
+};
+
+struct Result
+{
+    int                                code = 0; // HTTP response code
+    std::string                        body;     // Response body
+    std::map<std::string, std::string> headers;  // Headers attached to the response
+};
+
+/**
+ * Do a HTTP GET, when no user/password is required.
+ *
+ * @param url     URL to use.
+ * @param config  The config to use.
+ *
+ * @return A @c Result.
+ */
+Result get(const std::string& url, const Config& config = Config());
+
+/**
+ * Do a HTTP GET
+ *
+ * @param url       URL to use.
+ * @param user      Username to use, optional.
+ * @param password  Password for the user, optional.
+ * @param config    The config to use.
+ *
+ * @return A @c Result.
+ */
+Result get(const std::string& url,
+           const std::string& user, const std::string& password,
+           const Config& config = Config());
+
+}
+
+}
+