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backends/cloud/onedrive/onedrivelistdirectoryrequest.cpp

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+/* 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/cloud/onedrive/onedrivelistdirectoryrequest.h"
+#include "backends/cloud/onedrive/onedrivestorage.h"
+#include "backends/cloud/onedrive/onedrivetokenrefresher.h"
+#include "backends/cloud/iso8601.h"
+#include "backends/networking/http/connectionmanager.h"
+#include "backends/networking/http/networkreadstream.h"
+#include "common/formats/json.h"
+
+namespace Cloud {
+namespace OneDrive {
+
+#define ONEDRIVE_API_SPECIAL_APPROOT_CHILDREN "https://graph.microsoft.com/v1.0/drive/special/approot:/%s:/children"
+#define ONEDRIVE_API_SPECIAL_APPROOT_CHILDREN_ROOT_ITSELF "https://graph.microsoft.com/v1.0/drive/special/approot/children"
+
+OneDriveListDirectoryRequest::OneDriveListDirectoryRequest(OneDriveStorage *storage, const Common::String &path, Storage::ListDirectoryCallback cb, Networking::ErrorCallback ecb, bool recursive):
+	Networking::Request(nullptr, ecb),
+	_requestedPath(path), _requestedRecursive(recursive), _storage(storage), _listDirectoryCallback(cb),
+	_workingRequest(nullptr), _ignoreCallback(false) {
+	start();
+}
+
+OneDriveListDirectoryRequest::~OneDriveListDirectoryRequest() {
+	_ignoreCallback = true;
+	if (_workingRequest)
+		_workingRequest->finish();
+	delete _listDirectoryCallback;
+}
+
+void OneDriveListDirectoryRequest::start() {
+	//cleanup
+	_ignoreCallback = true;
+	if (_workingRequest)
+		_workingRequest->finish();
+	_workingRequest = nullptr;
+	_files.clear();
+	_directoriesQueue.clear();
+	_currentDirectory = "";
+	_ignoreCallback = false;
+
+	_directoriesQueue.push_back(_requestedPath);
+	listNextDirectory();
+}
+
+void OneDriveListDirectoryRequest::listNextDirectory() {
+	if (_directoriesQueue.empty()) {
+		finishListing(_files);
+		return;
+	}
+
+	_currentDirectory = _directoriesQueue.back();
+	_directoriesQueue.pop_back();
+
+	if (_currentDirectory != "" && _currentDirectory.lastChar() != '/' && _currentDirectory.lastChar() != '\\')
+		_currentDirectory += '/';
+
+	Common::String dir = _currentDirectory;
+	dir.deleteLastChar();
+	Common::String url = Common::String::format(ONEDRIVE_API_SPECIAL_APPROOT_CHILDREN, Common::percentEncodeString(dir).c_str());
+	if (dir == "") url = Common::String(ONEDRIVE_API_SPECIAL_APPROOT_CHILDREN_ROOT_ITSELF);
+	makeRequest(url);
+}
+
+void OneDriveListDirectoryRequest::makeRequest(const Common::String &url) {
+	Networking::JsonCallback callback = new Common::Callback<OneDriveListDirectoryRequest, const Networking::JsonResponse &>(this, &OneDriveListDirectoryRequest::listedDirectoryCallback);
+	Networking::ErrorCallback failureCallback = new Common::Callback<OneDriveListDirectoryRequest, const Networking::ErrorResponse &>(this, &OneDriveListDirectoryRequest::listedDirectoryErrorCallback);
+	Networking::HttpJsonRequest *request = new OneDriveTokenRefresher(_storage, callback, failureCallback, url.c_str());
+	request->addHeader("Authorization: bearer " + _storage->accessToken());
+	_workingRequest = ConnMan.addRequest(request);
+}
+
+void OneDriveListDirectoryRequest::listedDirectoryCallback(const Networking::JsonResponse &response) {
+	_workingRequest = nullptr;
+	const Common::JSONValue *json = response.value;
+
+	if (_ignoreCallback) {
+		delete json;
+		return;
+	}
+
+	if (response.request)
+		_date = response.request->date();
+
+	Networking::ErrorResponse error(this, "OneDriveListDirectoryRequest::listedDirectoryCallback: unknown error");
+	const Networking::HttpJsonRequest *rq = (const Networking::HttpJsonRequest *)response.request;
+	if (rq && rq->getNetworkReadStream())
+		error.httpResponseCode = rq->getNetworkReadStream()->httpResponseCode();
+
+	if (json == nullptr) {
+		error.response = "Failed to parse JSON, null passed!";
+		finishError(error);
+		return;
+	}
+
+	if (!json->isObject()) {
+		error.response = "Passed JSON is not an object!";
+		finishError(error);
+		delete json;
+		return;
+	}
+
+	Common::JSONObject object = json->asObject();
+
+	//check that ALL keys exist AND HAVE RIGHT TYPE to avoid segfaults
+	if (!Networking::HttpJsonRequest::jsonContainsArray(object, "value", "OneDriveListDirectoryRequest")) {
+		error.response = "\"value\" not found or that's not an array!";
+		finishError(error);
+		delete json;
+		return;
+	}
+
+	Common::JSONArray items = object.getVal("value")->asArray();
+	for (uint32 i = 0; i < items.size(); ++i) {
+		if (!Networking::HttpJsonRequest::jsonIsObject(items[i], "OneDriveListDirectoryRequest")) continue;
+
+		Common::JSONObject item = items[i]->asObject();
+
+		if (!Networking::HttpJsonRequest::jsonContainsAttribute(item, "folder", "OneDriveListDirectoryRequest", true)) continue;
+		if (!Networking::HttpJsonRequest::jsonContainsString(item, "name", "OneDriveListDirectoryRequest")) continue;
+		if (!Networking::HttpJsonRequest::jsonContainsIntegerNumber(item, "size", "OneDriveListDirectoryRequest")) continue;
+		if (!Networking::HttpJsonRequest::jsonContainsString(item, "lastModifiedDateTime", "OneDriveListDirectoryRequest")) continue;
+
+		Common::String path = _currentDirectory + item.getVal("name")->asString();
+		bool isDirectory = item.contains("folder");
+		uint32 size = item.getVal("size")->asIntegerNumber();
+		uint32 timestamp = ISO8601::convertToTimestamp(item.getVal("lastModifiedDateTime")->asString());
+
+		StorageFile file(path, size, timestamp, isDirectory);
+		_files.push_back(file);
+		if (_requestedRecursive && file.isDirectory()) {
+			_directoriesQueue.push_back(file.path());
+		}
+	}
+
+	bool hasMore = object.contains("@odata.nextLink");
+	if (hasMore) {
+		if (!Networking::HttpJsonRequest::jsonContainsString(object, "@odata.nextLink", "OneDriveListDirectoryRequest")) {
+			error.response = "\"@odata.nextLink\" is not a string!";
+			finishError(error);
+			delete json;
+			return;
+		}
+
+		makeRequest(object.getVal("@odata.nextLink")->asString());
+	} else {
+		listNextDirectory();
+	}
+
+	delete json;
+}
+
+void OneDriveListDirectoryRequest::listedDirectoryErrorCallback(const Networking::ErrorResponse &error) {
+	_workingRequest = nullptr;
+	if (_ignoreCallback)
+		return;
+	if (error.request)
+		_date = error.request->date();
+	finishError(error);
+}
+
+void OneDriveListDirectoryRequest::handle() {}
+
+void OneDriveListDirectoryRequest::restart() { start(); }
+
+Common::String OneDriveListDirectoryRequest::date() const { return _date; }
+
+void OneDriveListDirectoryRequest::finishListing(const Common::Array<StorageFile> &files) {
+	Request::finishSuccess();
+	if (_listDirectoryCallback)
+		(*_listDirectoryCallback)(Storage::ListDirectoryResponse(this, files));
+}
+
+} // End of namespace OneDrive
+} // End of namespace Cloud