CLOUD: Update GoogleDriveStorage and BoxStorage to auth via cloud.scummvm.org

10 files changed, 77 insertions, 336 deletions

diff --git a/backends/cloud/box/boxstorage.cpp b/backends/cloud/box/boxstorage.cpp
index 2671a77a5e..df81773855 100644
--- a/backends/cloud/box/boxstorage.cpp
+++ b/backends/cloud/box/boxstorage.cpp
@@ -42,50 +42,25 @@
 namespace Cloud {
 namespace Box {
 
-#define BOX_OAUTH2_TOKEN "https://api.box.com/oauth2/token"
 #define BOX_API_FOLDERS "https://api.box.com/2.0/folders"
 #define BOX_API_FILES_CONTENT "https://api.box.com/2.0/files/%s/content"
 #define BOX_API_USERS_ME "https://api.box.com/2.0/users/me"
 
-char *BoxStorage::KEY = nullptr; //can't use CloudConfig there yet, loading it on instance creation/auth
-char *BoxStorage::SECRET = nullptr;
-
-void BoxStorage::loadKeyAndSecret() {
-#ifdef ENABLE_RELEASE
-	KEY = RELEASE_BOX_KEY;
-	SECRET = RELEASE_BOX_SECRET;
-#else
-	Common::String k = ConfMan.get("BOX_KEY", ConfMan.kCloudDomain);
-	KEY = new char[k.size() + 1];
-	memcpy(KEY, k.c_str(), k.size());
-	KEY[k.size()] = 0;
-
-	k = ConfMan.get("BOX_SECRET", ConfMan.kCloudDomain);
-	SECRET = new char[k.size() + 1];
-	memcpy(SECRET, k.c_str(), k.size());
-	SECRET[k.size()] = 0;
-#endif
-}
-
 BoxStorage::BoxStorage(Common::String token, Common::String refreshToken):
-	_token(token), _refreshToken(refreshToken) {}
+	IdStorage(token, refreshToken) {}
 
 BoxStorage::BoxStorage(Common::String code) {
-	getAccessToken(
-		new Common::Callback<BoxStorage, BoolResponse>(this, &BoxStorage::codeFlowComplete),
-		new Common::Callback<BoxStorage, Networking::ErrorResponse>(this, &BoxStorage::codeFlowFailed),
-		code
-	);
+	getAccessToken(code);
 }
 
 BoxStorage::~BoxStorage() {}
 
-void BoxStorage::getAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback, Common::String code) {
-	if (!KEY || !SECRET)
-		loadKeyAndSecret();
-	bool codeFlow = (code != "");
+Common::String BoxStorage::cloudProvider() { return "box"; }
 
-	if (!codeFlow && _refreshToken == "") {
+uint32 BoxStorage::storageIndex() { return kStorageBoxId; }
+
+void BoxStorage::refreshAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback) {
+	if (_refreshToken == "") {
 		warning("BoxStorage: no refresh token available to get new access token.");
 		if (callback) (*callback)(BoolResponse(nullptr, false));
 		return;
@@ -95,23 +70,8 @@ void BoxStorage::getAccessToken(BoolCallback callback, Networking::ErrorCallback
 	if (errorCallback == nullptr)
 		errorCallback = getErrorPrintingCallback();
 
-	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, BOX_OAUTH2_TOKEN);
-	if (codeFlow) {
-		request->addPostField("grant_type=authorization_code");
-		request->addPostField("code=" + code);
-	} else {
-		request->addPostField("grant_type=refresh_token");
-		request->addPostField("refresh_token=" + _refreshToken);
-	}
-	request->addPostField("client_id=" + Common::String(KEY));
-	request->addPostField("client_secret=" + Common::String(SECRET));
-	/*
-	if (Cloud::CloudManager::couldUseLocalServer()) {
-	    request->addPostField("&redirect_uri=http%3A%2F%2Flocalhost%3A12345");
-	} else {
-	    request->addPostField("&redirect_uri=https%3A%2F%2Fwww.scummvm.org/c/code");
-	}
-	*/
+	Common::String url = "https://cloud.scummvm.org/box/refresh/" + _refreshToken; // TODO: subject to change
+	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, url);
 	addRequest(request);
 }
 
@@ -151,23 +111,6 @@ void BoxStorage::tokenRefreshed(BoolCallback callback, Networking::JsonResponse
 	delete callback;
 }
 
-void BoxStorage::codeFlowComplete(BoolResponse response) {
-	if (!response.value) {
-		warning("BoxStorage: failed to get access token through code flow");
-		CloudMan.removeStorage(this);
-		return;
-	}
-
-	CloudMan.replaceStorage(this, kStorageBoxId);
-	ConfMan.flushToDisk();
-}
-
-void BoxStorage::codeFlowFailed(Networking::ErrorResponse error) {
-	debug(9, "BoxStorage: code flow failed (%s, %ld):", (error.failed ? "failed" : "interrupted"), error.httpResponseCode);
-	debug(9, "%s", error.response.c_str());
-	CloudMan.removeStorage(this);
-}
-
 void BoxStorage::saveConfig(Common::String keyPrefix) {
 	ConfMan.set(keyPrefix + "access_token", _token, ConfMan.kCloudDomain);
 	ConfMan.set(keyPrefix + "refresh_token", _refreshToken, ConfMan.kCloudDomain);
@@ -321,8 +264,6 @@ Networking::Request *BoxStorage::info(StorageInfoCallback callback, Networking::
 Common::String BoxStorage::savesDirectoryPath() { return "scummvm/saves/"; }
 
 BoxStorage *BoxStorage::loadFromConfig(Common::String keyPrefix) {
-	loadKeyAndSecret();
-
 	if (!ConfMan.hasKey(keyPrefix + "access_token", ConfMan.kCloudDomain)) {
 		warning("BoxStorage: no access_token found");
 		return nullptr;
diff --git a/backends/cloud/box/boxstorage.h b/backends/cloud/box/boxstorage.h
index a641669b2a..e22624a20c 100644
--- a/backends/cloud/box/boxstorage.h
+++ b/backends/cloud/box/boxstorage.h
@@ -30,23 +30,27 @@ namespace Cloud {
 namespace Box {
 
 class BoxStorage: public Id::IdStorage {
-	static char *KEY, *SECRET;
-
-	static void loadKeyAndSecret();
-
-	Common::String _token, _refreshToken;
-
 	/** This private constructor is called from loadFromConfig(). */
 	BoxStorage(Common::String token, Common::String refreshToken);
 
 	void tokenRefreshed(BoolCallback callback, Networking::JsonResponse response);
-	void codeFlowComplete(BoolResponse response);
-	void codeFlowFailed(Networking::ErrorResponse error);
 
 	/** Constructs StorageInfo based on JSON response from cloud. */
 	void infoInnerCallback(StorageInfoCallback outerCallback, Networking::JsonResponse json);
 
 	void createDirectoryInnerCallback(BoolCallback outerCallback, Networking::JsonResponse response);
+
+protected:
+	/**
+	 * @return "box"
+	 */
+	virtual Common::String cloudProvider();
+
+	/**
+	 * @return kStorageBoxId
+	 */
+	virtual uint32 storageIndex();
+
 public:
 	/** This constructor uses OAuth code flow to get tokens. */
 	BoxStorage(Common::String code);
@@ -101,11 +105,10 @@ public:
 	virtual Common::String getRootDirectoryId();
 
 	/**
-	 * Gets new access_token. If <code> passed is "", refresh_token is used.
-	 * Use "" in order to refresh token and pass a callback, so you could
+	 * Gets new access_token. Pass a callback, so you could
 	 * continue your work when new token is available.
 	 */
-	void getAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback = nullptr, Common::String code = "");
+	void refreshAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback = nullptr);
 
 	Common::String accessToken() const { return _token; }
 };
diff --git a/backends/cloud/box/boxtokenrefresher.cpp b/backends/cloud/box/boxtokenrefresher.cpp
index 5f7ad1d611..19cdd92667 100644
--- a/backends/cloud/box/boxtokenrefresher.cpp
+++ b/backends/cloud/box/boxtokenrefresher.cpp
@@ -99,7 +99,7 @@ void BoxTokenRefresher::finishJson(Common::JSONValue *json) {
 
 			pause();
 			delete json;
-			_parentStorage->getAccessToken(new Common::Callback<BoxTokenRefresher, Storage::BoolResponse>(this, &BoxTokenRefresher::tokenRefreshed));
+			_parentStorage->refreshAccessToken(new Common::Callback<BoxTokenRefresher, Storage::BoolResponse>(this, &BoxTokenRefresher::tokenRefreshed));
 			return;
 		}
 	}
@@ -111,7 +111,7 @@ void BoxTokenRefresher::finishJson(Common::JSONValue *json) {
 void BoxTokenRefresher::finishError(Networking::ErrorResponse error) {
 	if (error.httpResponseCode == 401) { // invalid_token
 		pause();
-		_parentStorage->getAccessToken(new Common::Callback<BoxTokenRefresher, Storage::BoolResponse>(this, &BoxTokenRefresher::tokenRefreshed));
+		_parentStorage->refreshAccessToken(new Common::Callback<BoxTokenRefresher, Storage::BoolResponse>(this, &BoxTokenRefresher::tokenRefreshed));
 		return;
 	}
 
diff --git a/backends/cloud/googledrive/googledrivestorage.cpp b/backends/cloud/googledrive/googledrivestorage.cpp
index 51799eb384..bd4f2cb8d3 100644
--- a/backends/cloud/googledrive/googledrivestorage.cpp
+++ b/backends/cloud/googledrive/googledrivestorage.cpp
@@ -43,49 +43,25 @@
 namespace Cloud {
 namespace GoogleDrive {
 
-#define GOOGLEDRIVE_OAUTH2_TOKEN "https://accounts.google.com/o/oauth2/token"
 #define GOOGLEDRIVE_API_FILES_ALT_MEDIA "https://www.googleapis.com/drive/v3/files/%s?alt=media"
 #define GOOGLEDRIVE_API_FILES "https://www.googleapis.com/drive/v3/files"
 #define GOOGLEDRIVE_API_ABOUT "https://www.googleapis.com/drive/v3/about?fields=storageQuota,user"
 
-char *GoogleDriveStorage::KEY = nullptr; //can't use CloudConfig there yet, loading it on instance creation/auth
-char *GoogleDriveStorage::SECRET = nullptr;
-
-void GoogleDriveStorage::loadKeyAndSecret() {
-#ifdef ENABLE_RELEASE
-	KEY = RELEASE_GOOGLE_DRIVE_KEY;
-	SECRET = RELEASE_GOOGLE_DRIVE_SECRET;
-#else
-	Common::String k = ConfMan.get("GOOGLE_DRIVE_KEY", ConfMan.kCloudDomain);
-	KEY = new char[k.size() + 1];
-	memcpy(KEY, k.c_str(), k.size());
-	KEY[k.size()] = 0;
-
-	k = ConfMan.get("GOOGLE_DRIVE_SECRET", ConfMan.kCloudDomain);
-	SECRET = new char[k.size() + 1];
-	memcpy(SECRET, k.c_str(), k.size());
-	SECRET[k.size()] = 0;
-#endif
-}
-
 GoogleDriveStorage::GoogleDriveStorage(Common::String token, Common::String refreshToken):
-	_token(token), _refreshToken(refreshToken) {}
+	IdStorage(token, refreshToken) {}
 
 GoogleDriveStorage::GoogleDriveStorage(Common::String code) {
-	getAccessToken(
-		new Common::Callback<GoogleDriveStorage, BoolResponse>(this, &GoogleDriveStorage::codeFlowComplete),
-		new Common::Callback<GoogleDriveStorage, Networking::ErrorResponse>(this, &GoogleDriveStorage::codeFlowFailed),
-		code
-	);
+	getAccessToken(code);
 }
 
 GoogleDriveStorage::~GoogleDriveStorage() {}
 
-void GoogleDriveStorage::getAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback, Common::String code) {
-	if (!KEY || !SECRET) loadKeyAndSecret();
-	bool codeFlow = (code != "");
+Common::String GoogleDriveStorage::cloudProvider() { return "gdrive"; }
 
-	if (!codeFlow && _refreshToken == "") {
+uint32 GoogleDriveStorage::storageIndex() { return kStorageGoogleDriveId; }
+
+void GoogleDriveStorage::refreshAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback) {
+	if (_refreshToken == "") {
 		warning("GoogleDriveStorage: no refresh token available to get new access token.");
 		if (callback)
 			(*callback)(BoolResponse(nullptr, false));
@@ -95,17 +71,9 @@ void GoogleDriveStorage::getAccessToken(BoolCallback callback, Networking::Error
 	Networking::JsonCallback innerCallback = new Common::CallbackBridge<GoogleDriveStorage, BoolResponse, Networking::JsonResponse>(this, &GoogleDriveStorage::tokenRefreshed, callback);
 	if (errorCallback == nullptr)
 		errorCallback = getErrorPrintingCallback();
-	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, GOOGLEDRIVE_OAUTH2_TOKEN);
-	if (codeFlow) {
-		request->addPostField("code=" + code);
-		request->addPostField("grant_type=authorization_code");
-	} else {
-		request->addPostField("refresh_token=" + _refreshToken);
-		request->addPostField("grant_type=refresh_token");
-	}
-	request->addPostField("client_id=" + Common::String(KEY));
-	request->addPostField("client_secret=" + Common::String(SECRET));
-	request->addPostField("&redirect_uri=https%3A%2F%2Fwww.scummvm.org/c/code");
+
+	Common::String url = "https://cloud.scummvm.org/gdrive/refresh/" + _refreshToken; // TODO: subject to change
+	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, url);
 	addRequest(request);
 }
 
@@ -147,23 +115,6 @@ void GoogleDriveStorage::tokenRefreshed(BoolCallback callback, Networking::JsonR
 	delete callback;
 }
 
-void GoogleDriveStorage::codeFlowComplete(BoolResponse response) {
-	if (!response.value) {
-		warning("GoogleDriveStorage: failed to get access token through code flow");
-		CloudMan.removeStorage(this);
-		return;
-	}
-
-	CloudMan.replaceStorage(this, kStorageGoogleDriveId);
-	ConfMan.flushToDisk();
-}
-
-void GoogleDriveStorage::codeFlowFailed(Networking::ErrorResponse error) {
-	debug(9, "GoogleDriveStorage: code flow failed (%s, %ld):", (error.failed ? "failed" : "interrupted"), error.httpResponseCode);
-	debug(9, "%s", error.response.c_str());
-	CloudMan.removeStorage(this);
-}
-
 void GoogleDriveStorage::saveConfig(Common::String keyPrefix) {
 	ConfMan.set(keyPrefix + "access_token", _token, ConfMan.kCloudDomain);
 	ConfMan.set(keyPrefix + "refresh_token", _refreshToken, ConfMan.kCloudDomain);
@@ -320,8 +271,6 @@ Networking::Request *GoogleDriveStorage::info(StorageInfoCallback callback, Netw
 Common::String GoogleDriveStorage::savesDirectoryPath() { return "scummvm/saves/"; }
 
 GoogleDriveStorage *GoogleDriveStorage::loadFromConfig(Common::String keyPrefix) {
-	loadKeyAndSecret();
-
 	if (!ConfMan.hasKey(keyPrefix + "access_token", ConfMan.kCloudDomain)) {
 		warning("GoogleDriveStorage: no access_token found");
 		return nullptr;
diff --git a/backends/cloud/googledrive/googledrivestorage.h b/backends/cloud/googledrive/googledrivestorage.h
index d0585bc403..30bc9ab3f5 100644
--- a/backends/cloud/googledrive/googledrivestorage.h
+++ b/backends/cloud/googledrive/googledrivestorage.h
@@ -30,18 +30,10 @@ namespace Cloud {
 namespace GoogleDrive {
 
 class GoogleDriveStorage: public Id::IdStorage {
-	static char *KEY, *SECRET;
-
-	static void loadKeyAndSecret();
-
-	Common::String _token, _refreshToken;
-
 	/** This private constructor is called from loadFromConfig(). */
 	GoogleDriveStorage(Common::String token, Common::String refreshToken);
 
 	void tokenRefreshed(BoolCallback callback, Networking::JsonResponse response);
-	void codeFlowComplete(BoolResponse response);
-	void codeFlowFailed(Networking::ErrorResponse error);
 
 	/** Constructs StorageInfo based on JSON response from cloud. */
 	void infoInnerCallback(StorageInfoCallback outerCallback, Networking::JsonResponse json);
@@ -50,6 +42,18 @@ class GoogleDriveStorage: public Id::IdStorage {
 	void createDirectoryInnerCallback(BoolCallback outerCallback, Networking::JsonResponse json);
 
 	void printInfo(StorageInfoResponse response);
+
+protected:
+	/**
+	 * @return "gdrive"
+	 */
+	virtual Common::String cloudProvider();
+
+	/**
+	 * @return kStorageGoogleDriveId
+	 */
+	virtual uint32 storageIndex();
+
 public:
 	/** This constructor uses OAuth code flow to get tokens. */
 	GoogleDriveStorage(Common::String code);
@@ -103,11 +107,10 @@ public:
 	virtual Common::String getRootDirectoryId();
 
 	/**
-	 * Gets new access_token. If <code> passed is "", refresh_token is used.
-	 * Use "" in order to refresh token and pass a callback, so you could
+	 * Gets new access_token. Pass a callback, so you could
 	 * continue your work when new token is available.
 	 */
-	void getAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback = nullptr, Common::String code = "");
+	void refreshAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback = nullptr);
 
 	Common::String accessToken() const { return _token; }
 };
diff --git a/backends/cloud/googledrive/googledrivetokenrefresher.cpp b/backends/cloud/googledrive/googledrivetokenrefresher.cpp
index a32a7fcbed..f28f73a788 100644
--- a/backends/cloud/googledrive/googledrivetokenrefresher.cpp
+++ b/backends/cloud/googledrive/googledrivetokenrefresher.cpp
@@ -100,7 +100,7 @@ void GoogleDriveTokenRefresher::finishJson(Common::JSONValue *json) {
 
 			pause();
 			delete json;
-			_parentStorage->getAccessToken(new Common::Callback<GoogleDriveTokenRefresher, Storage::BoolResponse>(this, &GoogleDriveTokenRefresher::tokenRefreshed));
+			_parentStorage->refreshAccessToken(new Common::Callback<GoogleDriveTokenRefresher, Storage::BoolResponse>(this, &GoogleDriveTokenRefresher::tokenRefreshed));
 			return;
 		}
 	}
diff --git a/backends/cloud/id/idstorage.cpp b/backends/cloud/id/idstorage.cpp
index 44427ac4d2..dd8805ea9b 100644
--- a/backends/cloud/id/idstorage.cpp
+++ b/backends/cloud/id/idstorage.cpp
@@ -33,6 +33,11 @@
 namespace Cloud {
 namespace Id {
 
+IdStorage::IdStorage() {}
+
+IdStorage::IdStorage(Common::String token, Common::String refreshToken):
+	BaseStorage(token, refreshToken) {}
+
 IdStorage::~IdStorage() {}
 
 void IdStorage::printFiles(FileArrayResponse response) {
diff --git a/backends/cloud/id/idstorage.h b/backends/cloud/id/idstorage.h
index 946a792b42..35a320284e 100644
--- a/backends/cloud/id/idstorage.h
+++ b/backends/cloud/id/idstorage.h
@@ -23,7 +23,7 @@
 #ifndef BACKENDS_CLOUD_ID_IDSTORAGE_H
 #define BACKENDS_CLOUD_ID_IDSTORAGE_H
 
-#include "backends/cloud/storage.h"
+#include "backends/cloud/basestorage.h"
 #include "backends/networking/curl/curljsonrequest.h"
 
 /*
@@ -43,7 +43,7 @@
 namespace Cloud {
 namespace Id {
 
-class IdStorage: public Cloud::Storage {
+class IdStorage: public Cloud::BaseStorage {
 protected:
 	void printFiles(FileArrayResponse response);
 	void printBool(BoolResponse response);
@@ -52,6 +52,8 @@ protected:
 	ListDirectoryCallback getPrintFilesCallback();
 
 public:
+	IdStorage();
+	IdStorage(Common::String token, Common::String refreshToken);
 	virtual ~IdStorage();
 
 	/** Public Cloud API comes down there. */
diff --git a/gui/storagewizarddialog.cpp b/gui/storagewizarddialog.cpp
index b5b4b6fee6..b01d4422b8 100644
--- a/gui/storagewizarddialog.cpp
+++ b/gui/storagewizarddialog.cpp
@@ -60,8 +60,7 @@ StorageWizardDialog::StorageWizardDialog(uint32 storageId):
 
 	_returnLine1 = new StaticTextWidget(container, "GlobalOptions_Cloud_ConnectionWizard_Container.ReturnLine1", _("Obtain the code from the storage, enter it"));
 	_returnLine2 = new StaticTextWidget(container, "GlobalOptions_Cloud_ConnectionWizard_Container.ReturnLine2", _("in the following field and press 'Connect':"));
-	for (uint32 i = 0; i < CODE_FIELDS; ++i)
-		_codeWidget[i] = new EditTextWidget(container, "GlobalOptions_Cloud_ConnectionWizard_Container.CodeBox" + Common::String::format("%d", i+1), "", 0, kCodeBoxCmd);
+	_codeWidget = new EditTextWidget(container, "GlobalOptions_Cloud_ConnectionWizard_Container.CodeBox1", "", 0, kCodeBoxCmd);
 	_messageWidget = new StaticTextWidget(container, "GlobalOptions_Cloud_ConnectionWizard_Container.MessageLine", "");
 
 	// Buttons
@@ -121,7 +120,6 @@ void StorageWizardDialog::open() {
 
 		if (doClose) {
 			close();
-			return;
 		}
 	}
 }
@@ -133,67 +131,10 @@ void StorageWizardDialog::close() {
 void StorageWizardDialog::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
 	switch (cmd) {
 	case kCodeBoxCmd: {
-		Common::String code, message;
-
-		if (_storageId == Cloud::kStorageDropboxId || _storageId == Cloud::kStorageOneDriveId) {
-			// new handling
-			code = _codeWidget[0]->getEditString();
-
-			bool ok = (code.size() > 0);
-			message = ""; // (ok ? _("All OK!") : "");
-
-			_connectWidget->setEnabled(ok);
-			_messageWidget->setLabel(message);
-			return;
-		}
-		
-		uint32 correctFields = 0;
-		for (uint32 i = 0; i < CODE_FIELDS; ++i) {
-			Common::String subcode = _codeWidget[i]->getEditString();
-			if (subcode.size() == 0) {
-				++correctFields;
-				continue;
-			}
-			bool correct = correctChecksum(subcode);
-			if (correct) {
-				code += subcode;
-				code.deleteLastChar();
-				++correctFields;
-			} else {
-				if (i == correctFields) { //first incorrect field
-					message += Common::String::format("#%d", i + 1);
-				} else {
-					message += Common::String::format(", #%d", i + 1);
-				}
-			}
-		}
-
-		if (message.size() > 0) {
-			Common::String messageTemplate;
-			if (CODE_FIELDS - correctFields == 1)
-				messageTemplate = _("Field %s has a mistake in it.");
-			else
-				messageTemplate = _("Fields %s have mistakes in them.");
-			message = Common::String::format(messageTemplate.c_str(), message.c_str());
-		}
-
-		bool ok = false;
-		if (correctFields == CODE_FIELDS && code.size() > 0) {
-			//the last 3 chars must be an encoded crc16
-			if (code.size() > 3) {
-				uint32 size = code.size();
-				uint32 gotcrc = decodeHashchar(code[size - 3]) | (decodeHashchar(code[size - 2]) << 6) | (decodeHashchar(code[size - 1]) << 12);
-				code.erase(size - 3);
-				uint32 crc = crc16(code);
-				ok = (crc == gotcrc);
-			}
-			if (ok)
-				message = _("All OK!");
-			else
-				message = _("Invalid code");
-		}
+		Common::String code = _codeWidget->getEditString();
+		bool ok = (code.size() > 0);
 		_connectWidget->setEnabled(ok);
-		_messageWidget->setLabel(message);
+		_messageWidget->setLabel("");
 		break;
 	}
 	case kOpenUrlCmd: {
@@ -206,21 +147,8 @@ void StorageWizardDialog::handleCommand(CommandSender *sender, uint32 cmd, uint3
 	case kPasteCodeCmd: {
 		if (g_system->hasTextInClipboard()) {
 			Common::String message = g_system->getTextFromClipboard();
-			for (uint32 i = 0; i < CODE_FIELDS; ++i) {
-				if (message.empty()) break;
-				Common::String subcode = "";
-				for (uint32 j = 0; j < message.size(); ++j) {
-					if (message[j] == ' ') {
-						message.erase(0, j+1);
-						break;
-					}
-					subcode += message[j];
-					if (j+1 == message.size()) {
-						message = "";
-						break;
-					}
-				}
-				_codeWidget[i]->setEditString(subcode);
+			if (!message.empty()) {
+				_codeWidget->setEditString(message);
 			}
 			handleCommand(sender, kCodeBoxCmd, data);
 			g_gui.scheduleTopDialogRedraw();
@@ -228,32 +156,13 @@ void StorageWizardDialog::handleCommand(CommandSender *sender, uint32 cmd, uint3
 		break;
 	}
 	case kConnectCmd: {
-		if (_storageId == Cloud::kStorageDropboxId || _storageId == Cloud::kStorageOneDriveId) {
-			// new handling
-			Common::String code = _codeWidget[0]->getEditString();
-			if (code.size() == 0)
-				return;
-
-			CloudMan.connectStorage(_storageId, code);
-			setResult(1);
-			close();
+		Common::String code = _codeWidget->getEditString();
+		if (code.size() == 0)
 			return;
-		}
 
-		Common::String code;
-		for (uint32 i = 0; i < CODE_FIELDS; ++i) {
-			Common::String subcode = _codeWidget[i]->getEditString();
-			if (subcode.size() == 0)
-				continue;
-			code += subcode;
-			code.deleteLastChar();
-		}
-		if (code.size() > 3) {
-			code.erase(code.size() - 3);
-			CloudMan.connectStorage(_storageId, code);
-			setResult(1);
-			close();
-		}
+		CloudMan.connectStorage(_storageId, code);
+		setResult(1);
+		close();
 		break;
 	}
 #ifdef USE_SDL_NET
@@ -286,11 +195,9 @@ void StorageWizardDialog::containerWidgetsReflow() {
 	if (_urlLineWidget) _urlLineWidget->setVisible(true);
 	if (_returnLine1) _returnLine1->setVisible(true);
 	if (_returnLine2) _returnLine2->setVisible(true);
-
-	bool showFields = true; // TODO: remove this const
-	for (uint32 i = 0; i < CODE_FIELDS; ++i)
-		_codeWidget[i]->setVisible(showFields && ((_storageId != Cloud::kStorageDropboxId && _storageId != Cloud::kStorageOneDriveId) || i < 1)); // show only one field for Dropbox
-	_messageWidget->setVisible(showFields);
+	
+	_codeWidget->setVisible(true);
+	_messageWidget->setVisible(true);
 
 	// left column / first bottom row
 	if (_picture) {
@@ -301,62 +208,17 @@ void StorageWizardDialog::containerWidgetsReflow() {
 		_openUrlWidget->setVisible(visible);
 	}
 	if (_pasteCodeWidget) {
-		bool visible = showFields && g_system->hasFeature(OSystem::kFeatureClipboardSupport);
+		bool visible = g_system->hasFeature(OSystem::kFeatureClipboardSupport);
 		_pasteCodeWidget->setVisible(visible);
 	}
 
 	// bottom row
 	if (_cancelWidget) _cancelWidget->setVisible(true);
-	if (_connectWidget) {
-		_connectWidget->setVisible(showFields);
-	}
+	if (_connectWidget) _connectWidget->setVisible(true);
 }
 
 Common::String StorageWizardDialog::getUrl() const {
-	Common::String url = "https://www.scummvm.org/c/";
-	switch (_storageId) {
-	case Cloud::kStorageDropboxId:
-	case Cloud::kStorageOneDriveId:
-		url = "https://cloud.scummvm.org/";
-		break;
-	case Cloud::kStorageGoogleDriveId:
-		url += "gd";
-		break;
-	case Cloud::kStorageBoxId:
-		url += "bx";
-		break;
-	}
-
-	return url;
-}
-
-int StorageWizardDialog::decodeHashchar(char c) {
-	const char HASHCHARS[65] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ?!";
-	for (uint32 i = 0; i < 64; ++i)
-		if (c == HASHCHARS[i])
-			return i;
-	return -1;
-}
-
-bool StorageWizardDialog::correctChecksum(Common::String s) {
-	if (s.size() == 0)
-		return false; //no last char
-	int providedChecksum = decodeHashchar(s.lastChar());
-	int calculatedChecksum = 0x2A; //any initial value would do, but it must equal to the one used on the page where these checksums were generated
-	for (uint32 i = 0; i < s.size()-1; ++i) {
-		calculatedChecksum = calculatedChecksum ^ s[i];
-	}
-	return providedChecksum == (calculatedChecksum % 64);
-}
-
-uint32 StorageWizardDialog::crc16(Common::String s) { //"CRC16_CCITT_FALSE"
-	uint32 crc = 0xFFFF, x;
-	for (uint32 i = 0; i < s.size(); ++i) {
-		x = ((crc >> 8) ^ s[i]) & 0xFF;
-		x ^= x >> 4;
-		crc = ((crc << 8) ^ (x << 12) ^ (x << 5) ^ x) & 0xFFFF;
-	}
-	return crc;
+	return "https://cloud.scummvm.org/";
 }
 
 } // End of namespace GUI
diff --git a/gui/storagewizarddialog.h b/gui/storagewizarddialog.h
index 61bc8ac873..ede37505ee 100644
--- a/gui/storagewizarddialog.h
+++ b/gui/storagewizarddialog.h
@@ -41,7 +41,6 @@ enum StorageWizardDialogCommands {
 #endif
 
 class StorageWizardDialog : public Dialog {
-	static const uint32 CODE_FIELDS = 8;
 	uint32 _storageId;
 
 	StaticTextWidget *_headlineWidget;
@@ -49,7 +48,7 @@ class StorageWizardDialog : public Dialog {
 	StaticTextWidget *_urlLineWidget;
 	StaticTextWidget *_returnLine1;
 	StaticTextWidget *_returnLine2;
-	EditTextWidget *_codeWidget[CODE_FIELDS];
+	EditTextWidget *_codeWidget;
 	StaticTextWidget *_messageWidget;
 
 	GraphicsWidget *_picture;
@@ -70,29 +69,6 @@ class StorageWizardDialog : public Dialog {
 	/** Return short scummvm.org URL for user to navigate to. */
 	Common::String getUrl() const;
 
-	/**
-	 * Return the value corresponding to the given character.
-	 *
-	 * There is a value corresponding to each of 64 selected
-	 * printable characters (0-9, A-Z, a-z, ? and !).
-	 *
-	 * When given another character, -1 is returned.
-	 */
-	int decodeHashchar(char c);
-
-	/**
-	 * Return whether checksum is correct.
-	 *
-	 * The last character of the string is treated as
-	 * the checksum of all the others (decoded with
-	 * decodeHashchar()).
-	 *
-	 * Checksum = (c[0] ^ c[1] ^ ...) % 64
-	 */
-	bool correctChecksum(Common::String s);
-
-	/** The "CRC16_CCITT_FALSE" CRC-16 algorithm. */
-	uint32 crc16(Common::String s);
 public:
 	StorageWizardDialog(uint32 storageId);