Initial commit

backends/networking/http/session.cpp

@@ -0,0 +1,88 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "backends/networking/http/session.h"
+
+namespace Networking {
+
+Session::Session(const Common::String &prefix):
+	_prefix(prefix), _request(nullptr) {}
+
+Session::~Session() {
+	close();
+}
+
+static Common::String constructUrl(const Common::String &prefix, const Common::String &url) {
+	// check url prefix
+	if (!prefix.empty()) {
+		if (url.contains("://")) {
+			if (!url.hasPrefix(prefix)) {
+				warning("Session: given URL does not match the prefix!\n\t%s\n\t%s", url.c_str(), prefix.c_str());
+				return Common::String();
+			}
+		} else {
+			// if no schema given, just append <url> to <_prefix>
+			Common::String newUrl = prefix;
+			if (newUrl.lastChar() != '/' && (url.size() > 0 && url.firstChar() != '/'))
+				newUrl += "/";
+			newUrl += url;
+			return newUrl;
+		}
+	}
+
+	return url;
+}
+
+SessionRequest *Session::get(const Common::String &url, const Common::Path &localFile, DataCallback cb, ErrorCallback ecb, bool binary) {
+	Common::String builtUrl = constructUrl(_prefix, url);
+
+	if (builtUrl.empty())
+		return nullptr;
+
+	// check if request has finished (ready to be replaced)
+	if (_request) {
+		if (!_request->complete()) {
+			warning("Session: can't reuse Request that is being processed");
+			return nullptr;
+		}
+	}
+
+	if (!_request) {
+		_request = new SessionRequest(builtUrl, localFile, cb, ecb, binary); // automatically added to ConnMan
+		_request->connectionKeepAlive();
+	} else {
+		_request->reuse(builtUrl, localFile, cb, ecb, binary);
+	}
+
+	return _request;
+}
+
+void Session::close() {
+	if (_request)
+		_request->close();
+}
+
+void Session::abortRequest() {
+	if (_request)
+		_request->abortRequest();
+}
+
+} // End of namespace Networking