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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/dropbox/dropboxlistdirectoryrequest.h"
#include "backends/cloud/dropbox/dropboxstorage.h"
#include "backends/cloud/dropbox/dropboxtokenrefresher.h"
#include "backends/cloud/iso8601.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/formats/json.h"
#include "common/debug.h"
namespace Cloud {
namespace Dropbox {
#define DROPBOX_API_LIST_FOLDER "https://api.dropboxapi.com/2/files/list_folder"
#define DROPBOX_API_LIST_FOLDER_CONTINUE "https://api.dropboxapi.com/2/files/list_folder/continue"
DropboxListDirectoryRequest::DropboxListDirectoryRequest(DropboxStorage *storage, const Common::String &path, Storage::ListDirectoryCallback cb, Networking::ErrorCallback ecb, bool recursive):
Networking::Request(nullptr, ecb), _requestedPath(path), _requestedRecursive(recursive), _listDirectoryCallback(cb),
_storage(storage), _workingRequest(nullptr), _ignoreCallback(false) {
start();
}
DropboxListDirectoryRequest::~DropboxListDirectoryRequest() {
_ignoreCallback = true;
if (_workingRequest)
_workingRequest->finish();
delete _listDirectoryCallback;
}
void DropboxListDirectoryRequest::start() {
_ignoreCallback = true;
if (_workingRequest)
_workingRequest->finish();
_files.clear();
_ignoreCallback = false;
Networking::JsonCallback callback = new Common::Callback<DropboxListDirectoryRequest, const Networking::JsonResponse &>(this, &DropboxListDirectoryRequest::responseCallback);
Networking::ErrorCallback failureCallback = new Common::Callback<DropboxListDirectoryRequest, const Networking::ErrorResponse &>(this, &DropboxListDirectoryRequest::errorCallback);
Networking::CurlJsonRequest *request = new DropboxTokenRefresher(_storage, callback, failureCallback, DROPBOX_API_LIST_FOLDER);
request->addHeader("Authorization: Bearer " + _storage->accessToken());
request->addHeader("Content-Type: application/json");
Common::JSONObject jsonRequestParameters;
jsonRequestParameters.setVal("path", new Common::JSONValue(_requestedPath));
jsonRequestParameters.setVal("recursive", new Common::JSONValue(_requestedRecursive));
jsonRequestParameters.setVal("include_media_info", new Common::JSONValue(false));
jsonRequestParameters.setVal("include_deleted", new Common::JSONValue(false));
Common::JSONValue value(jsonRequestParameters);
request->addPostField(Common::JSON::stringify(&value));
_workingRequest = ConnMan.addRequest(request);
}
void DropboxListDirectoryRequest::responseCallback(const Networking::JsonResponse &response) {
_workingRequest = nullptr;
if (_ignoreCallback) {
delete response.value;
return;
}
if (response.request)
_date = response.request->date();
Networking::ErrorResponse error(this, "DropboxListDirectoryRequest::responseCallback: unknown error");
const Networking::CurlJsonRequest *rq = (const Networking::CurlJsonRequest *)response.request;
if (rq && rq->getNetworkReadStream())
error.httpResponseCode = rq->getNetworkReadStream()->httpResponseCode();
const Common::JSONValue *json = response.value;
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 responseObject = json->asObject();
if (responseObject.contains("error") || responseObject.contains("error_summary")) {
if (responseObject.contains("error_summary") && responseObject.getVal("error_summary")->isString()) {
warning("Dropbox returned error: %s", responseObject.getVal("error_summary")->asString().c_str());
}
error.failed = true;
error.response = json->stringify();
finishError(error);
delete json;
return;
}
//check that ALL keys exist AND HAVE RIGHT TYPE to avoid segfaults
if (responseObject.contains("entries")) {
if (!responseObject.getVal("entries")->isArray()) {
error.response = Common::String::format(
"\"entries\" found, but that's not an array!\n%s",
responseObject.getVal("entries")->stringify(true).c_str()
);
finishError(error);
delete json;
return;
}
Common::JSONArray items = responseObject.getVal("entries")->asArray();
for (uint32 i = 0; i < items.size(); ++i) {
if (!Networking::CurlJsonRequest::jsonIsObject(items[i], "DropboxListDirectoryRequest"))
continue;
Common::JSONObject item = items[i]->asObject();
if (!Networking::CurlJsonRequest::jsonContainsString(item, "path_lower", "DropboxListDirectoryRequest"))
continue;
if (!Networking::CurlJsonRequest::jsonContainsString(item, ".tag", "DropboxListDirectoryRequest"))
continue;
Common::String path = item.getVal("path_lower")->asString();
bool isDirectory = (item.getVal(".tag")->asString() == "folder");
uint32 size = 0, timestamp = 0;
if (!isDirectory) {
if (!Networking::CurlJsonRequest::jsonContainsString(item, "server_modified", "DropboxListDirectoryRequest"))
continue;
if (!Networking::CurlJsonRequest::jsonContainsIntegerNumber(item, "size", "DropboxListDirectoryRequest"))
continue;
size = item.getVal("size")->asIntegerNumber();
timestamp = ISO8601::convertToTimestamp(item.getVal("server_modified")->asString());
}
_files.push_back(StorageFile(path, size, timestamp, isDirectory));
}
}
bool hasMore = false;
if (responseObject.contains("has_more")) {
if (!responseObject.getVal("has_more")->isBool()) {
warning("DropboxListDirectoryRequest: \"has_more\" is not a boolean");
debug(9, "%s", responseObject.getVal("has_more")->stringify(true).c_str());
error.response = "\"has_more\" is not a boolean!";
finishError(error);
delete json;
return;
}
hasMore = responseObject.getVal("has_more")->asBool();
}
if (hasMore) {
if (!Networking::CurlJsonRequest::jsonContainsString(responseObject, "cursor", "DropboxListDirectoryRequest")) {
error.response = "\"has_more\" found, but \"cursor\" is not (or it's not a string)!";
finishError(error);
delete json;
return;
}
Networking::JsonCallback callback = new Common::Callback<DropboxListDirectoryRequest, const Networking::JsonResponse &>(this, &DropboxListDirectoryRequest::responseCallback);
Networking::ErrorCallback failureCallback = new Common::Callback<DropboxListDirectoryRequest, const Networking::ErrorResponse &>(this, &DropboxListDirectoryRequest::errorCallback);
Networking::CurlJsonRequest *request = new DropboxTokenRefresher(_storage, callback, failureCallback, DROPBOX_API_LIST_FOLDER_CONTINUE);
request->addHeader("Authorization: Bearer " + _storage->accessToken());
request->addHeader("Content-Type: application/json");
Common::JSONObject jsonRequestParameters;
jsonRequestParameters.setVal("cursor", new Common::JSONValue(responseObject.getVal("cursor")->asString()));
Common::JSONValue value(jsonRequestParameters);
request->addPostField(Common::JSON::stringify(&value));
_workingRequest = ConnMan.addRequest(request);
} else {
finishListing(_files);
}
delete json;
}
void DropboxListDirectoryRequest::errorCallback(const Networking::ErrorResponse &error) {
_workingRequest = nullptr;
if (_ignoreCallback)
return;
if (error.request)
_date = error.request->date();
finishError(error);
}
void DropboxListDirectoryRequest::handle() {}
void DropboxListDirectoryRequest::restart() { start(); }
Common::String DropboxListDirectoryRequest::date() const { return _date; }
void DropboxListDirectoryRequest::finishListing(const Common::Array<StorageFile> &files) {
Request::finishSuccess();
if (_listDirectoryCallback)
(*_listDirectoryCallback)(Storage::ListDirectoryResponse(this, files));
}
} // End of namespace Dropbox
} // End of namespace Cloud
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