CLOUD: Add Request::date()

Used in SavesSyncRequest to update Storage's last sync date.

20 files changed, 92 insertions, 0 deletions

diff --git a/backends/cloud/dropbox/dropboxcreatedirectoryrequest.cpp b/backends/cloud/dropbox/dropboxcreatedirectoryrequest.cpp
index c077d8df11..61cc9ddfcd 100644
--- a/backends/cloud/dropbox/dropboxcreatedirectoryrequest.cpp
+++ b/backends/cloud/dropbox/dropboxcreatedirectoryrequest.cpp
@@ -68,6 +68,7 @@ void DropboxCreateDirectoryRequest::responseCallback(Networking::JsonResponse re
 		delete json;
 		return;
 	}
+	if (response.request) _date = response.request->date();
 
 	Networking::ErrorResponse error(this);
 	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
@@ -93,6 +94,7 @@ void DropboxCreateDirectoryRequest::responseCallback(Networking::JsonResponse re
 void DropboxCreateDirectoryRequest::errorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -100,6 +102,8 @@ void DropboxCreateDirectoryRequest::handle() {}
 
 void DropboxCreateDirectoryRequest::restart() { start(); }
 
+Common::String DropboxCreateDirectoryRequest::date() const { return _date; }
+
 void DropboxCreateDirectoryRequest::finishSuccess(bool success) {
 	Request::finishSuccess();
 	if (_boolCallback) (*_boolCallback)(Storage::BoolResponse(this, success));
diff --git a/backends/cloud/dropbox/dropboxcreatedirectoryrequest.h b/backends/cloud/dropbox/dropboxcreatedirectoryrequest.h
index ea3175bb50..e8599c7df9 100644
--- a/backends/cloud/dropbox/dropboxcreatedirectoryrequest.h
+++ b/backends/cloud/dropbox/dropboxcreatedirectoryrequest.h
@@ -36,6 +36,7 @@ class DropboxCreateDirectoryRequest: public Networking::Request {
 	Storage::BoolCallback _boolCallback;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 	
 	void start();
 	void responseCallback(Networking::JsonResponse response);
@@ -47,6 +48,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace Dropbox
diff --git a/backends/cloud/dropbox/dropboxlistdirectoryrequest.cpp b/backends/cloud/dropbox/dropboxlistdirectoryrequest.cpp
index d782f81a69..933ea2bd8e 100644
--- a/backends/cloud/dropbox/dropboxlistdirectoryrequest.cpp
+++ b/backends/cloud/dropbox/dropboxlistdirectoryrequest.cpp
@@ -71,6 +71,8 @@ void DropboxListDirectoryRequest::responseCallback(Networking::JsonResponse resp
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
 
+	if (response.request) _date = response.request->date();
+
 	Networking::ErrorResponse error(this);
 	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
 	if (rq && rq->getNetworkReadStream())
@@ -137,6 +139,7 @@ void DropboxListDirectoryRequest::responseCallback(Networking::JsonResponse resp
 void DropboxListDirectoryRequest::errorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -144,6 +147,8 @@ void DropboxListDirectoryRequest::handle() {}
 
 void DropboxListDirectoryRequest::restart() { start(); }
 
+Common::String DropboxListDirectoryRequest::date() const { return _date; }
+
 void DropboxListDirectoryRequest::finishSuccess(Common::Array<StorageFile> &files) {	
 	Request::finishSuccess();
 	if (_listDirectoryCallback) (*_listDirectoryCallback)(Storage::ListDirectoryResponse(this, files));
diff --git a/backends/cloud/dropbox/dropboxlistdirectoryrequest.h b/backends/cloud/dropbox/dropboxlistdirectoryrequest.h
index 3a83af06aa..0d96edd1e6 100644
--- a/backends/cloud/dropbox/dropboxlistdirectoryrequest.h
+++ b/backends/cloud/dropbox/dropboxlistdirectoryrequest.h
@@ -40,6 +40,7 @@ class DropboxListDirectoryRequest: public Networking::Request {
 	Common::Array<StorageFile> _files;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 	
 	void start();
 	void responseCallback(Networking::JsonResponse response);
@@ -51,6 +52,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace Dropbox
diff --git a/backends/cloud/googledrive/googledrivecreatedirectoryrequest.cpp b/backends/cloud/googledrive/googledrivecreatedirectoryrequest.cpp
index 54eff3d6ad..2b7a805bb9 100644
--- a/backends/cloud/googledrive/googledrivecreatedirectoryrequest.cpp
+++ b/backends/cloud/googledrive/googledrivecreatedirectoryrequest.cpp
@@ -63,12 +63,14 @@ void GoogleDriveCreateDirectoryRequest::start() {
 void GoogleDriveCreateDirectoryRequest::createdBaseDirectoryCallback(Storage::BoolResponse response) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (response.request) _date = response.request->date();
 	resolveId();
 }
 
 void GoogleDriveCreateDirectoryRequest::createdBaseDirectoryErrorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -85,6 +87,7 @@ void GoogleDriveCreateDirectoryRequest::resolveId() {
 void GoogleDriveCreateDirectoryRequest::idResolvedCallback(Storage::UploadResponse response) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (response.request) _date = response.request->date();
 
 	//resolved => folder already exists
 	finishSuccess(false);
@@ -93,6 +96,7 @@ void GoogleDriveCreateDirectoryRequest::idResolvedCallback(Storage::UploadRespon
 void GoogleDriveCreateDirectoryRequest::idResolveFailedCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	
 	//not resolved => folder not exists
 	if (error.response.contains("no such file found in its parent directory")) {		
@@ -116,12 +120,14 @@ void GoogleDriveCreateDirectoryRequest::idResolveFailedCallback(Networking::Erro
 void GoogleDriveCreateDirectoryRequest::createdDirectoryCallback(Storage::BoolResponse response) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (response.request) _date = response.request->date();
 	finishSuccess(response.value);
 }
 
 void GoogleDriveCreateDirectoryRequest::createdDirectoryErrorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -129,6 +135,8 @@ void GoogleDriveCreateDirectoryRequest::handle() {}
 
 void GoogleDriveCreateDirectoryRequest::restart() { start(); }
 
+Common::String GoogleDriveCreateDirectoryRequest::date() const { return _date; }
+
 void GoogleDriveCreateDirectoryRequest::finishSuccess(bool success) {
 	Request::finishSuccess();
 	if (_boolCallback) (*_boolCallback)(Storage::BoolResponse(this, success));
diff --git a/backends/cloud/googledrive/googledrivecreatedirectoryrequest.h b/backends/cloud/googledrive/googledrivecreatedirectoryrequest.h
index ede84277de..f71afeb888 100644
--- a/backends/cloud/googledrive/googledrivecreatedirectoryrequest.h
+++ b/backends/cloud/googledrive/googledrivecreatedirectoryrequest.h
@@ -39,6 +39,7 @@ class GoogleDriveCreateDirectoryRequest: public Networking::Request {
 	Storage::BoolCallback _boolCallback;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 
 	void start();
 	void createdBaseDirectoryCallback(Storage::BoolResponse response);
@@ -55,6 +56,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace GoogleDrive
diff --git a/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.cpp b/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.cpp
index 86494e8c13..2530bab557 100644
--- a/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.cpp
+++ b/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.cpp
@@ -70,6 +70,7 @@ void GoogleDriveListDirectoryByIdRequest::makeRequest(Common::String pageToken)
 void GoogleDriveListDirectoryByIdRequest::responseCallback(Networking::JsonResponse response) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (response.request) _date = response.request->date();
 
 	Networking::ErrorResponse error(this);
 	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
@@ -131,6 +132,7 @@ void GoogleDriveListDirectoryByIdRequest::responseCallback(Networking::JsonRespo
 void GoogleDriveListDirectoryByIdRequest::errorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -138,6 +140,8 @@ void GoogleDriveListDirectoryByIdRequest::handle() {}
 
 void GoogleDriveListDirectoryByIdRequest::restart() { start(); }
 
+Common::String GoogleDriveListDirectoryByIdRequest::date() const { return _date; }
+
 void GoogleDriveListDirectoryByIdRequest::finishSuccess(Common::Array<StorageFile> &files) {	
 	Request::finishSuccess();
 	if (_listDirectoryCallback) (*_listDirectoryCallback)(Storage::ListDirectoryResponse(this, files));
diff --git a/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.h b/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.h
index 569984520a..ceb533e635 100644
--- a/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.h
+++ b/backends/cloud/googledrive/googledrivelistdirectorybyidrequest.h
@@ -41,6 +41,7 @@ class GoogleDriveListDirectoryByIdRequest: public Networking::Request {
 	Common::Array<StorageFile> _files;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 	
 	void start();
 	void makeRequest(Common::String pageToken);
@@ -53,6 +54,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace GoogleDrive
diff --git a/backends/cloud/googledrive/googledrivelistdirectoryrequest.cpp b/backends/cloud/googledrive/googledrivelistdirectoryrequest.cpp
index 8811ffc938..3387b43418 100644
--- a/backends/cloud/googledrive/googledrivelistdirectoryrequest.cpp
+++ b/backends/cloud/googledrive/googledrivelistdirectoryrequest.cpp
@@ -58,6 +58,7 @@ void GoogleDriveListDirectoryRequest::start() {
 void GoogleDriveListDirectoryRequest::idResolvedCallback(Storage::UploadResponse response) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (response.request) _date = response.request->date();
 
 	StorageFile directory = response.value;
 	directory.setPath(_requestedPath);
@@ -68,6 +69,7 @@ void GoogleDriveListDirectoryRequest::idResolvedCallback(Storage::UploadResponse
 void GoogleDriveListDirectoryRequest::idResolveErrorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -88,6 +90,7 @@ void GoogleDriveListDirectoryRequest::listNextDirectory() {
 void GoogleDriveListDirectoryRequest::listedDirectoryCallback(Storage::FileArrayResponse response) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (response.request) _date = response.request->date();
 
 	for (uint32 i = 0; i < response.value.size(); ++i) {
 		StorageFile &file = response.value[i];
@@ -107,6 +110,7 @@ void GoogleDriveListDirectoryRequest::listedDirectoryCallback(Storage::FileArray
 void GoogleDriveListDirectoryRequest::listedDirectoryErrorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -114,6 +118,8 @@ void GoogleDriveListDirectoryRequest::handle() {}
 
 void GoogleDriveListDirectoryRequest::restart() { start(); }
 
+Common::String GoogleDriveListDirectoryRequest::date() const { return _date; }
+
 void GoogleDriveListDirectoryRequest::finishSuccess(Common::Array<StorageFile> &files) {
 	Request::finishSuccess();
 	if (_listDirectoryCallback) (*_listDirectoryCallback)(Storage::ListDirectoryResponse(this, files));
diff --git a/backends/cloud/googledrive/googledrivelistdirectoryrequest.h b/backends/cloud/googledrive/googledrivelistdirectoryrequest.h
index bea195f70a..b3d8ff6c93 100644
--- a/backends/cloud/googledrive/googledrivelistdirectoryrequest.h
+++ b/backends/cloud/googledrive/googledrivelistdirectoryrequest.h
@@ -43,6 +43,7 @@ class GoogleDriveListDirectoryRequest: public Networking::Request {
 	StorageFile _currentDirectory;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 
 	void start();
 	void idResolvedCallback(Storage::UploadResponse response);
@@ -57,6 +58,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace GoogleDrive
diff --git a/backends/cloud/onedrive/onedrivecreatedirectoryrequest.cpp b/backends/cloud/onedrive/onedrivecreatedirectoryrequest.cpp
index fe1128bd5b..2c644c42c5 100644
--- a/backends/cloud/onedrive/onedrivecreatedirectoryrequest.cpp
+++ b/backends/cloud/onedrive/onedrivecreatedirectoryrequest.cpp
@@ -87,6 +87,7 @@ void OneDriveCreateDirectoryRequest::responseCallback(Networking::JsonResponse r
 		delete json;
 		return;
 	}
+	if (response.request) _date = response.request->date();
 
 	Networking::ErrorResponse error(this);
 	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
@@ -112,6 +113,7 @@ void OneDriveCreateDirectoryRequest::responseCallback(Networking::JsonResponse r
 void OneDriveCreateDirectoryRequest::errorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -119,6 +121,8 @@ void OneDriveCreateDirectoryRequest::handle() {}
 
 void OneDriveCreateDirectoryRequest::restart() { start(); }
 
+Common::String OneDriveCreateDirectoryRequest::date() const { return _date; }
+
 void OneDriveCreateDirectoryRequest::finishSuccess(bool success) {
 	Request::finishSuccess();
 	if (_boolCallback) (*_boolCallback)(Storage::BoolResponse(this, success));
diff --git a/backends/cloud/onedrive/onedrivecreatedirectoryrequest.h b/backends/cloud/onedrive/onedrivecreatedirectoryrequest.h
index 4bf0d9ef36..880e94e8db 100644
--- a/backends/cloud/onedrive/onedrivecreatedirectoryrequest.h
+++ b/backends/cloud/onedrive/onedrivecreatedirectoryrequest.h
@@ -38,6 +38,7 @@ class OneDriveCreateDirectoryRequest: public Networking::Request {
 	Storage::BoolCallback _boolCallback;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 	
 	void start();
 	void responseCallback(Networking::JsonResponse response);
@@ -49,6 +50,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace OneDrive
diff --git a/backends/cloud/onedrive/onedrivelistdirectoryrequest.cpp b/backends/cloud/onedrive/onedrivelistdirectoryrequest.cpp
index 040ef153db..be6fcb70e7 100644
--- a/backends/cloud/onedrive/onedrivelistdirectoryrequest.cpp
+++ b/backends/cloud/onedrive/onedrivelistdirectoryrequest.cpp
@@ -94,6 +94,8 @@ void OneDriveListDirectoryRequest::listedDirectoryCallback(Networking::JsonRespo
 		return;
 	}
 
+	if (response.request) _date = response.request->date();
+
 	Networking::ErrorResponse error(this);
 	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
 	if (rq && rq->getNetworkReadStream())
@@ -138,6 +140,7 @@ void OneDriveListDirectoryRequest::listedDirectoryCallback(Networking::JsonRespo
 void OneDriveListDirectoryRequest::listedDirectoryErrorCallback(Networking::ErrorResponse error) {
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
+	if (error.request) _date = error.request->date();
 	finishError(error);
 }
 
@@ -145,6 +148,8 @@ void OneDriveListDirectoryRequest::handle() {}
 
 void OneDriveListDirectoryRequest::restart() { start(); }
 
+Common::String OneDriveListDirectoryRequest::date() const { return _date; }
+
 void OneDriveListDirectoryRequest::finishSuccess(Common::Array<StorageFile> &files) {
 	Request::finishSuccess();
 	if (_listDirectoryCallback) (*_listDirectoryCallback)(Storage::ListDirectoryResponse(this, files));
diff --git a/backends/cloud/onedrive/onedrivelistdirectoryrequest.h b/backends/cloud/onedrive/onedrivelistdirectoryrequest.h
index b8adfe7ef0..5e80f4f561 100644
--- a/backends/cloud/onedrive/onedrivelistdirectoryrequest.h
+++ b/backends/cloud/onedrive/onedrivelistdirectoryrequest.h
@@ -43,6 +43,7 @@ class OneDriveListDirectoryRequest: public Networking::Request {
 	Common::String _currentDirectory;
 	Request *_workingRequest;
 	bool _ignoreCallback;
+	Common::String _date;
 
 	void start();
 	void listNextDirectory();
@@ -56,6 +57,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 };
 
 } // End of namespace OneDrive
diff --git a/backends/cloud/savessyncrequest.cpp b/backends/cloud/savessyncrequest.cpp
index e1739f9693..f059e29a8d 100644
--- a/backends/cloud/savessyncrequest.cpp
+++ b/backends/cloud/savessyncrequest.cpp
@@ -76,6 +76,8 @@ void SavesSyncRequest::directoryListedCallback(Storage::ListDirectoryResponse re
 	_workingRequest = nullptr;
 	if (_ignoreCallback) return;
 
+	if (response.request) _date = response.request->date();
+
 	Common::HashMap<Common::String, bool> localFileNotAvailableInCloud;
 	for (Common::HashMap<Common::String, uint32>::iterator i = _localFilesTimestamps.begin(); i != _localFilesTimestamps.end(); ++i) {		
 		localFileNotAvailableInCloud[i->_key] = true;
@@ -352,6 +354,9 @@ void SavesSyncRequest::finishSuccess(bool success) {
 	//save updated timestamps (even if Request failed, there would be only valid timestamps)
 	saveTimestamps();
 
+	//update last successful sync date
+	CloudMan.setStorageLastSync(CloudMan.getStorageIndex(), _date);
+
 	if (_boolCallback) (*_boolCallback)(Storage::BoolResponse(this, success));
 }
 
diff --git a/backends/cloud/savessyncrequest.h b/backends/cloud/savessyncrequest.h
index 569feb4e45..1a615e80a1 100644
--- a/backends/cloud/savessyncrequest.h
+++ b/backends/cloud/savessyncrequest.h
@@ -45,6 +45,7 @@ class SavesSyncRequest: public Networking::Request, public GUI::CommandSender {
 	Request *_workingRequest;
 	bool _ignoreCallback;
 	uint32 _totalFilesToHandle;
+	Common::String _date;
 
 	void start();
 	void directoryListedCallback(Storage::ListDirectoryResponse response);
diff --git a/backends/networking/curl/curlrequest.cpp b/backends/networking/curl/curlrequest.cpp
index 6ef0e346af..3a143e5af8 100644
--- a/backends/networking/curl/curlrequest.cpp
+++ b/backends/networking/curl/curlrequest.cpp
@@ -66,6 +66,25 @@ void CurlRequest::restart() {
 	//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;
diff --git a/backends/networking/curl/curlrequest.h b/backends/networking/curl/curlrequest.h
index 5c06b58107..68ea3a58d7 100644
--- a/backends/networking/curl/curlrequest.h
+++ b/backends/networking/curl/curlrequest.h
@@ -55,6 +55,7 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+	virtual Common::String date() const;
 
 	/** Replaces all headers with the passed array of headers. */
 	virtual void setHeaders(Common::Array<Common::String> &headers);
diff --git a/backends/networking/curl/request.cpp b/backends/networking/curl/request.cpp
index d2f91586a0..4a2704fc76 100644
--- a/backends/networking/curl/request.cpp
+++ b/backends/networking/curl/request.cpp
@@ -60,6 +60,8 @@ void Request::retry(uint32 seconds) {
 
 RequestState Request::state() const { return _state; }
 
+Common::String Request::date() const { return ""; }
+
 void Request::finishError(ErrorResponse error) {
 	_state = FINISHED;
 	if (_errorCallback) (*_errorCallback)(error);
diff --git a/backends/networking/curl/request.h b/backends/networking/curl/request.h
index de5308fa52..6a1bc12594 100644
--- a/backends/networking/curl/request.h
+++ b/backends/networking/curl/request.h
@@ -182,6 +182,20 @@ public:
 
 	/** Returns Request's current state. */
 	RequestState state() const;
+
+	/**
+	 * Return date this Request received from server.
+	 * It could be extracted from "Date" header,
+	 * which is kept in NetworkReadStream.
+	 *
+	 * @note not all Requests do that, so "" is returned
+	 * to indicate the date is unknown. That's also true
+	 * if no server response available or no "Date" header
+	 * was passed.
+	 *
+	 * @returns date from "Date" response header.
+	 */
+	virtual Common::String date() const;
 };
 
 } // End of namespace Networking