CLOUD: Move Dropbox to API v2

We had a few places where their deprecated API v1 was used.

4 files changed, 204 insertions, 51 deletions

diff --git a/backends/cloud/dropbox/dropboxinforequest.cpp b/backends/cloud/dropbox/dropboxinforequest.cpp
new file mode 100644
index 0000000000..f5a14abe1c
--- /dev/null
+++ b/backends/cloud/dropbox/dropboxinforequest.cpp
@@ -0,0 +1,143 @@
+/* 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.
+*
+*/
+
+#include "backends/cloud/dropbox/dropboxinforequest.h"
+#include "backends/cloud/cloudmanager.h"
+#include "backends/cloud/storage.h"
+#include "backends/networking/curl/connectionmanager.h"
+#include "backends/networking/curl/curljsonrequest.h"
+#include "backends/networking/curl/networkreadstream.h"
+#include "common/json.h"
+
+namespace Cloud {
+namespace Dropbox {
+
+DropboxInfoRequest::DropboxInfoRequest(Common::String token, Storage::StorageInfoCallback cb, Networking::ErrorCallback ecb):
+	Networking::Request(nullptr, ecb), _token(token), _infoCallback(cb),
+	_workingRequest(nullptr), _ignoreCallback(false) {
+	start();
+}
+
+DropboxInfoRequest::~DropboxInfoRequest() {
+	_ignoreCallback = true;
+	if (_workingRequest) _workingRequest->finish();
+	delete _infoCallback;
+}
+
+void DropboxInfoRequest::start() {
+	_ignoreCallback = true;
+	if (_workingRequest) _workingRequest->finish();	
+	_ignoreCallback = false;
+
+	Networking::JsonCallback innerCallback = new Common::Callback<DropboxInfoRequest, Networking::JsonResponse>(this, &DropboxInfoRequest::userResponseCallback);
+	Networking::ErrorCallback errorCallback = new Common::Callback<DropboxInfoRequest, Networking::ErrorResponse>(this, &DropboxInfoRequest::errorCallback);
+	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, "https://api.dropboxapi.com/2/users/get_current_account");
+	request->addHeader("Authorization: Bearer " + _token);
+	request->addHeader("Content-Type: application/json");
+	request->addPostField("null"); //use POST
+
+	_workingRequest = ConnMan.addRequest(request);
+}
+
+void DropboxInfoRequest::userResponseCallback(Networking::JsonResponse response) {
+	Common::JSONValue *json = response.value;
+	_workingRequest = nullptr;
+	if (_ignoreCallback) {
+		delete json;
+		return;
+	}
+
+	Networking::ErrorResponse error(this);
+	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
+	if (rq && rq->getNetworkReadStream())
+		error.httpResponseCode = rq->getNetworkReadStream()->httpResponseCode();
+	
+	if (!json) {
+		warning("NULL passed instead of JSON");
+		finishError(error);
+		return;
+	}
+
+	//Dropbox documentation states there are no errors for this API method
+	Common::JSONObject info = json->asObject();
+	Common::JSONObject nameInfo = info.getVal("name")->asObject();
+	_uid = info.getVal("account_id")->asString();
+	_name = nameInfo.getVal("display_name")->asString();
+	_email = info.getVal("email")->asString();
+	CloudMan.setStorageUsername(kStorageDropboxId, _email);
+	delete json;
+
+	Networking::JsonCallback innerCallback = new Common::Callback<DropboxInfoRequest, Networking::JsonResponse>(this, &DropboxInfoRequest::quotaResponseCallback);
+	Networking::ErrorCallback errorCallback = new Common::Callback<DropboxInfoRequest, Networking::ErrorResponse>(this, &DropboxInfoRequest::errorCallback);
+	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, "https://api.dropboxapi.com/2/users/get_space_usage");
+	request->addHeader("Authorization: Bearer " + _token);
+	request->addHeader("Content-Type: application/json");
+	request->addPostField("null"); //use POST
+
+	_workingRequest = ConnMan.addRequest(request);
+}
+
+void DropboxInfoRequest::quotaResponseCallback(Networking::JsonResponse response) {
+	Common::JSONValue *json = response.value;
+	_workingRequest = nullptr;
+	if (_ignoreCallback) {
+		delete json;
+		return;
+	}
+
+	Networking::ErrorResponse error(this);
+	Networking::CurlJsonRequest *rq = (Networking::CurlJsonRequest *)response.request;
+	if (rq && rq->getNetworkReadStream())
+		error.httpResponseCode = rq->getNetworkReadStream()->httpResponseCode();
+
+	if (!json) {
+		warning("NULL passed instead of JSON");
+		finishError(error);
+		return;
+	}
+
+	//Dropbox documentation states there are no errors for this API method
+	Common::JSONObject info = json->asObject();
+	Common::JSONObject allocation = info.getVal("allocation")->asObject();
+	uint64 used = info.getVal("used")->asIntegerNumber();
+	uint64 allocated = allocation.getVal("allocated")->asIntegerNumber();
+	finishInfo(StorageInfo(_uid, _name, _email, used, allocated));
+	delete json;
+}
+
+void DropboxInfoRequest::errorCallback(Networking::ErrorResponse error) {
+	_workingRequest = nullptr;
+	if (_ignoreCallback) return;
+	finishError(error);
+}
+
+void DropboxInfoRequest::handle() {}
+
+void DropboxInfoRequest::restart() { start(); }
+
+void DropboxInfoRequest::finishInfo(StorageInfo info) {
+	Request::finishSuccess();
+	if (_infoCallback) (*_infoCallback)(Storage::StorageInfoResponse(this, info));
+}
+
+} // End of namespace Dropbox
+} // End of namespace Cloud
diff --git a/backends/cloud/dropbox/dropboxinforequest.h b/backends/cloud/dropbox/dropboxinforequest.h
new file mode 100644
index 0000000000..a91d016e60
--- /dev/null
+++ b/backends/cloud/dropbox/dropboxinforequest.h
@@ -0,0 +1,56 @@
+/* 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.
+*
+*/
+
+#ifndef BACKENDS_CLOUD_DROPBOX_DROPBOXINFOREQUEST_H
+#define BACKENDS_CLOUD_DROPBOX_DROPBOXINFOREQUEST_H
+
+#include "backends/cloud/storage.h"
+#include "backends/networking/curl/request.h"
+#include "backends/networking/curl/curljsonrequest.h"
+
+namespace Cloud {
+namespace Dropbox {
+
+class DropboxInfoRequest: public Networking::Request {
+	Common::String _token;
+	Common::String _uid, _name, _email;
+	Storage::StorageInfoCallback _infoCallback;
+	Request *_workingRequest;
+	bool _ignoreCallback;
+	
+	void start();
+	void userResponseCallback(Networking::JsonResponse response);
+	void quotaResponseCallback(Networking::JsonResponse response);
+	void errorCallback(Networking::ErrorResponse error);
+	void finishInfo(StorageInfo info);
+public:
+	DropboxInfoRequest(Common::String token, Storage::StorageInfoCallback cb, Networking::ErrorCallback ecb);
+	virtual ~DropboxInfoRequest();
+
+	virtual void handle();
+	virtual void restart();
+};
+
+} // End of namespace Dropbox
+} // End of namespace Cloud
+
+#endif
diff --git a/backends/cloud/dropbox/dropboxstorage.cpp b/backends/cloud/dropbox/dropboxstorage.cpp
index 8343b74aa0..e34912ed66 100644
--- a/backends/cloud/dropbox/dropboxstorage.cpp
+++ b/backends/cloud/dropbox/dropboxstorage.cpp
@@ -23,6 +23,7 @@
 
 #include "backends/cloud/dropbox/dropboxstorage.h"
 #include "backends/cloud/dropbox/dropboxcreatedirectoryrequest.h"
+#include "backends/cloud/dropbox/dropboxinforequest.h"
 #include "backends/cloud/dropbox/dropboxlistdirectoryrequest.h"
 #include "backends/cloud/dropbox/dropboxuploadrequest.h"
 #include "backends/cloud/cloudmanager.h"
@@ -62,7 +63,7 @@ DropboxStorage::~DropboxStorage() {}
 void DropboxStorage::getAccessToken(Common::String code) {
 	if (!KEY || !SECRET) loadKeyAndSecret();
 	Networking::JsonCallback callback = new Common::Callback<DropboxStorage, Networking::JsonResponse>(this, &DropboxStorage::codeFlowComplete);		
-	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(callback, nullptr, "https://api.dropboxapi.com/1/oauth2/token");
+	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(callback, nullptr, "https://api.dropboxapi.com/oauth2/token");
 	request->addPostField("code=" + code);
 	request->addPostField("grant_type=authorization_code");
 	request->addPostField("client_id=" + Common::String(KEY));
@@ -133,54 +134,13 @@ Networking::Request *DropboxStorage::createDirectory(Common::String path, BoolCa
 	return addRequest(new DropboxCreateDirectoryRequest(_token, path, callback, errorCallback));
 }
 
-Networking::Request *DropboxStorage::info(StorageInfoCallback outerCallback, Networking::ErrorCallback errorCallback) {
-	Networking::JsonCallback innerCallback = new Common::CallbackBridge<DropboxStorage, StorageInfoResponse, Networking::JsonResponse>(this, &DropboxStorage::infoInnerCallback, outerCallback);
-	Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, "https://api.dropboxapi.com/1/account/info");
-	request->addHeader("Authorization: Bearer " + _token);
-	return addRequest(request);
-	//that callback bridge wraps the outerCallback (passed in arguments from user) into innerCallback
-	//so, when CurlJsonRequest is finished, it calls the innerCallback
-	//innerCallback (which is DropboxStorage::infoInnerCallback in this case) processes the void *ptr
-	//and then calls the outerCallback (which wants to receive StorageInfo, not void *)
+Networking::Request *DropboxStorage::info(StorageInfoCallback callback, Networking::ErrorCallback errorCallback) {
+	if (!errorCallback) errorCallback = getErrorPrintingCallback();
+	return addRequest(new DropboxInfoRequest(_token, callback, errorCallback));
 }
 
 Common::String DropboxStorage::savesDirectoryPath() { return "/saves/"; }
 
-void DropboxStorage::infoInnerCallback(StorageInfoCallback outerCallback, Networking::JsonResponse response) {
-	Common::JSONValue *json = response.value;
-	if (!json) {
-		warning("NULL passed instead of JSON");
-		delete outerCallback;
-		return;
-	}
-
-	//Dropbox documentation states there is no errors for this API method
-	Common::JSONObject info = json->asObject();
-	Common::String uid = Common::String::format("%d", (int)info.getVal("uid")->asIntegerNumber());
-	Common::String name = info.getVal("display_name")->asString();
-	Common::String email = info.getVal("email")->asString();
-	Common::JSONObject quota = info.getVal("quota_info")->asObject();
-	uint64 quotaNormal = quota.getVal("normal")->asIntegerNumber();
-	uint64 quotaShared = quota.getVal("shared")->asIntegerNumber();
-	uint64 quotaAllocated = quota.getVal("quota")->asIntegerNumber();
-		
-	CloudMan.setStorageUsername(kStorageDropboxId, email);
-
-	if (outerCallback) {
-		(*outerCallback)(StorageInfoResponse(nullptr, StorageInfo(uid, name, email, quotaNormal+quotaShared, quotaAllocated)));
-		delete outerCallback;
-	}
-	
-	delete json;
-}
-
-void DropboxStorage::infoMethodCallback(StorageInfoResponse response) {
-	debug("\nStorage info:");
-	debug("User name: %s", response.value.name().c_str());
-	debug("Email: %s", response.value.email().c_str());
-	debug("Disk usage: %u/%u", (uint32)response.value.used(), (uint32)response.value.available());
-}
-
 DropboxStorage *DropboxStorage::loadFromConfig(Common::String keyPrefix) {
 	loadKeyAndSecret();
 
diff --git a/backends/cloud/dropbox/dropboxstorage.h b/backends/cloud/dropbox/dropboxstorage.h
index b3dc64139c..2c9cf163ab 100644
--- a/backends/cloud/dropbox/dropboxstorage.h
+++ b/backends/cloud/dropbox/dropboxstorage.h
@@ -43,9 +43,6 @@ class DropboxStorage: public Cloud::Storage {
 	void getAccessToken(Common::String code);
 	void codeFlowComplete(Networking::JsonResponse response);
 
-	/** Constructs StorageInfo based on JSON response from cloud. */
-	void infoInnerCallback(StorageInfoCallback outerCallback, Networking::JsonResponse json);
-
 public:
 	/** This constructor uses OAuth code flow to get tokens. */
 	DropboxStorage(Common::String code);
@@ -90,9 +87,6 @@ public:
 	/** Returns the StorageInfo struct. */
 	virtual Networking::Request *info(StorageInfoCallback callback, Networking::ErrorCallback errorCallback);
 
-	/** This method is passed into info(). (Temporary) */
-	void infoMethodCallback(StorageInfoResponse response);
-
 	/** Returns storage's saves directory path with the trailing slash. */
 	virtual Common::String savesDirectoryPath();