test/RunCurl: new debug program

test/RunCurl.cxx

+/*
+ * Copyright 2003-2019 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "ShutdownHandler.hxx"
+#include "lib/curl/Global.hxx"
+#include "lib/curl/Request.hxx"
+#include "lib/curl/Handler.hxx"
+#include "event/Loop.hxx"
+#include "util/PrintException.hxx"
+
+#include <stdio.h>
+
+class MyHandler final : public CurlResponseHandler {
+	EventLoop &event_loop;
+
+	std::exception_ptr error;
+
+public:
+	explicit MyHandler(EventLoop &_event_loop) noexcept
+		:event_loop(_event_loop) {}
+
+	void Finish() {
+		if (error)
+			std::rethrow_exception(error);
+	}
+
+	/* virtual methods from CurlResponseHandler */
+	void OnHeaders(unsigned status,
+		       std::multimap<std::string, std::string> &&headers) override {
+		fprintf(stderr, "status: %u\n", status);
+		for (const auto &i : headers)
+			fprintf(stderr, "%s: %s\n",
+				i.first.c_str(), i.second.c_str());
+	}
+
+	void OnData(ConstBuffer<void> data) override {
+		if (fwrite(data.data, data.size, 1, stdout) != 1)
+			throw std::runtime_error("Failed to write");
+	}
+
+	void OnEnd() override {
+		event_loop.Break();
+	}
+
+	void OnError(std::exception_ptr e) noexcept override {
+		error = std::move(e);
+		event_loop.Break();
+	}
+};
+
+int
+main(int argc, char **argv) noexcept
+try {
+	if (argc != 2) {
+		fprintf(stderr, "Usage: RunCurl URI\n");
+		return EXIT_FAILURE;
+	}
+
+	const char *const uri = argv[1];
+
+	EventLoop event_loop;
+	const ShutdownHandler shutdown_handler(event_loop);
+	CurlGlobal curl_global(event_loop);
+
+	MyHandler handler(event_loop);
+	CurlRequest request(curl_global, uri, handler);
+	request.Start();
+
+	event_loop.Run();
+
+	handler.Finish();
+
+	return EXIT_SUCCESS;
+} catch (...) {
+	PrintException(std::current_exception());
+	return EXIT_FAILURE;
+}

test/meson.build

@@ -334,6 +334,18 @@ executable(
 )
 
 if curl_dep.found()
+  executable(
+    'RunCurl',
+    'RunCurl.cxx',
+    'ShutdownHandler.cxx',
+    '../src/Log.cxx',
+    '../src/LogBackend.cxx',
+    include_directories: inc,
+    dependencies: [
+      curl_dep,
+    ],
+  )
+
   test('test_icy_parser', executable(
     'test_icy_parser',
     'test_icy_parser.cxx',