public static String RequestResourceByUrl(String url, Dictionary<String, String> parameters, IStorageProviderService service, IStorageProviderSession session, out int netErrorCode)
{
// cast the dropbox session
var dropBoxSession = session as DropBoxStorageProviderSession;
// instance the oAuthServer
var svc = new OAuthService();
var urlhash = new KeyValuePair<string, string>();
if (!string.IsNullOrEmpty(url) && url.Contains("/metadata/"))
{
//Add the hash attr if any
urlhash = SessionHashStorage.Get(session.SessionToken.ToString(), url, () => new KeyValuePair<string, string>());
}
if (!string.IsNullOrEmpty(urlhash.Key) && !string.IsNullOrEmpty(urlhash.Value))
{
//Add params
if (parameters == null)
parameters = new Dictionary<string, string>();
parameters.Add("hash", urlhash.Key);
}
// build the webrequest to protected resource
var request = svc.CreateWebRequest(url, WebRequestMethodsEx.Http.Get, null, null, dropBoxSession.Context, (DropBoxToken) dropBoxSession.SessionToken, parameters);
// get the error code
WebException ex;
// perform a simple webrequest
using (Stream s = svc.PerformWebRequest(request, null, out netErrorCode, out ex,
(code) => !string.IsNullOrEmpty(urlhash.Key) && !string.IsNullOrEmpty(urlhash.Value) && code == 304)/*to check code without downloading*/)
{
if (!string.IsNullOrEmpty(urlhash.Key) && !string.IsNullOrEmpty(urlhash.Value) && netErrorCode == 304)
{
return urlhash.Value;
}
if (s == null)
return "";
// read the memory stream and convert to string
var response = new StreamReader(s).ReadToEnd();
return response;
}
}
public void CommitUploadSession(IStorageProviderSession session, IResumableUploadSession uploadSession)
{
if (uploadSession.Status == ResumableUploadSessionStatus.Started)
{
var requestService = new OAuthService();
var request = requestService.CreateWebRequest(GetCommitUploadSessionUrl(session, uploadSession),
"POST",
null,
null,
((DropBoxStorageProviderSession)session).Context,
(DropBoxToken)session.SessionToken,
new Dictionary<string, string> {{"upload_id", uploadSession.GetItem<string>("UploadId")}});
int httpStatusCode;
WebException httpException;
requestService.PerformWebRequest(request, null, out httpStatusCode, out httpException);
if (httpStatusCode != (int)HttpStatusCode.OK)
SharpBoxException.ThrowSharpBoxExceptionBasedOnHttpErrorCode((HttpWebRequest)request, (HttpStatusCode)httpStatusCode, httpException);
var file = (BaseFileEntry)uploadSession.File;
file.Length = uploadSession.BytesToTransfer;
file.Id = file.ParentID != "/" ? file.ParentID + "/" + file.Name : file.Name;
var parent = file.Parent as BaseDirectoryEntry;
if (parent != null)
{
parent.RemoveChildById(file.Name);
parent.AddChild(file);
}
((ResumableUploadSession)uploadSession).Status = ResumableUploadSessionStatus.Completed;
}
}
public override Stream CreateDownloadStream(IStorageProviderSession session, ICloudFileSystemEntry fileSystemEntry)
{
// build the url
var url = GetDownloadFileUrlInternal(session, fileSystemEntry);
// build the service
var svc = new OAuthService();
// get the dropbox session
var dropBoxSession = session as DropBoxStorageProviderSession;
// create webrequst
var requestProtected = svc.CreateWebRequest(url, WebRequestMethodsEx.Http.Get, null, null, dropBoxSession.Context, (DropBoxToken) dropBoxSession.SessionToken, null);
// get the response
var response = svc.GetWebResponse(requestProtected);
// get the data stream
var orgStream = svc.GetResponseStream(response);
// build the download stream
var dStream = new BaseFileEntryDownloadStream(orgStream, fileSystemEntry);
// put the disposable on the stack
dStream._DisposableObjects.Push(response);
// go ahead
return dStream;
}
