Merge pull request #788 from Tkachov/cloud

ALL: Add Cloud storage support

1 files changed, 162 insertions, 0 deletions

diff --git a/backends/networking/curl/curlrequest.cpp b/backends/networking/curl/curlrequest.cpp
new file mode 100644
index 0000000000..64fa347023
--- /dev/null
+++ b/backends/networking/curl/curlrequest.cpp
@@ -0,0 +1,162 @@
+/* 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 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.
+*
+*/
+
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#include "backends/networking/curl/curlrequest.h"
+#include "backends/networking/curl/connectionmanager.h"
+#include "backends/networking/curl/networkreadstream.h"
+#include "common/textconsole.h"
+#include <curl/curl.h>
+
+namespace Networking {
+
+CurlRequest::CurlRequest(DataCallback cb, ErrorCallback ecb, Common::String url):
+	Request(cb, ecb), _url(url), _stream(nullptr), _headersList(nullptr), _bytesBuffer(nullptr),
+	_bytesBufferSize(0), _uploading(false), _usingPatch(false) {}
+
+CurlRequest::~CurlRequest() {
+	delete _stream;
+	delete _bytesBuffer;
+}
+
+NetworkReadStream *CurlRequest::makeStream() {
+	if (_bytesBuffer)
+		return new NetworkReadStream(_url.c_str(), _headersList, _bytesBuffer, _bytesBufferSize, _uploading, _usingPatch, true);
+	if (!_formFields.empty() || !_formFiles.empty())
+		return new NetworkReadStream(_url.c_str(), _headersList, _formFields, _formFiles);
+	return new NetworkReadStream(_url.c_str(), _headersList, _postFields, _uploading, _usingPatch);
+}
+
+void CurlRequest::handle() {
+	if (!_stream) _stream = makeStream();
+
+	if (_stream && _stream->eos()) {
+		if (_stream->httpResponseCode() != 200) {
+			warning("CurlRequest: HTTP response code is not 200 OK (it's %ld)", _stream->httpResponseCode());
+			ErrorResponse error(this, false, true, "", _stream->httpResponseCode());
+			finishError(error);
+			return;
+		}
+
+		finishSuccess(); //note that this Request doesn't call its callback on success (that's because it has nothing to return)
+	}
+}
+
+void CurlRequest::restart() {
+	if (_stream)
+		delete _stream;
+	_stream = nullptr;
+	//with no stream available next handle() will create another one
+}
+
+Common::String CurlRequest::date() const {
+	if (_stream) {
+		Common::String headers = _stream->responseHeaders();
+		const char *cstr = headers.c_str();
+		const char *position = strstr(cstr, "Date: ");
+
+		if (position) {
+			Common::String result = "";
+			char c;
+			for (const char *i = position + 6; c = *i, c != 0; ++i) {
+				if (c == '\n' || c == '\r')
+					break;
+				result += c;
+			}
+			return result;
+		}
+	}
+	return "";
+}
+
+void CurlRequest::setHeaders(Common::Array<Common::String> &headers) {
+	curl_slist_free_all(_headersList);
+	_headersList = nullptr;
+	for (uint32 i = 0; i < headers.size(); ++i)
+		addHeader(headers[i]);
+}
+
+void CurlRequest::addHeader(Common::String header) {
+	_headersList = curl_slist_append(_headersList, header.c_str());
+}
+
+void CurlRequest::addPostField(Common::String keyValuePair) {
+	if (_bytesBuffer)
+		warning("CurlRequest: added POST fields would be ignored, because there is buffer present");
+
+	if (!_formFields.empty() || !_formFiles.empty())
+		warning("CurlRequest: added POST fields would be ignored, because there are form fields/files present");
+
+	if (_postFields == "")
+		_postFields = keyValuePair;
+	else
+		_postFields += "&" + keyValuePair;
+}
+
+void CurlRequest::addFormField(Common::String name, Common::String value) {
+	if (_bytesBuffer)
+		warning("CurlRequest: added POST form fields would be ignored, because there is buffer present");
+
+	if (_formFields.contains(name))
+		warning("CurlRequest: form field '%s' already had a value", name.c_str());
+
+	_formFields[name] = value;
+}
+
+void CurlRequest::addFormFile(Common::String name, Common::String filename) {
+	if (_bytesBuffer)
+		warning("CurlRequest: added POST form files would be ignored, because there is buffer present");
+
+	if (_formFields.contains(name))
+		warning("CurlRequest: form file field '%s' already had a value", name.c_str());
+
+	_formFiles[name] = filename;
+}
+
+void CurlRequest::setBuffer(byte *buffer, uint32 size) {
+	if (_postFields != "")
+		warning("CurlRequest: added POST fields would be ignored, because buffer added");
+
+	if (_bytesBuffer)
+		delete _bytesBuffer;
+
+	_bytesBuffer = buffer;
+	_bytesBufferSize = size;
+}
+
+void CurlRequest::usePut() { _uploading = true; }
+
+void CurlRequest::usePatch() { _usingPatch = true; }
+
+NetworkReadStreamResponse CurlRequest::execute() {
+	if (!_stream) {
+		_stream = makeStream();
+		ConnMan.addRequest(this);
+	}
+
+	return NetworkReadStreamResponse(this, _stream);
+}
+
+const NetworkReadStream *CurlRequest::getNetworkReadStream() const { return _stream; }
+
+} // End of namespace Networking