/// <summary>
/// Download application state either as a ZIP file or as a SIAM file from a remote location.
/// </summary>
/// <param name="syncFormat">The synchronization format to use</param>
public void RunDownload(SynchronizationFormat syncFormat)
{
try
{
Stream importStream = null;
string tempFileName = null;
switch (remoteProtocol)
{
case RemoteStorageProtocolType.UNC:
// Fetch from a UNC path
importStream =
File.Open(
Path.Combine(Environment.ExpandEnvironmentVariables(remoteLocation), remoteFileName),
FileMode.Open);
break;
case RemoteStorageProtocolType.dasBlog:
// Fetch from the dasBlog web service
// Connect to the web service and request an update
ConfigEditingService remoteStore = new ConfigEditingService();
remoteStore.Url = remoteLocation;
remoteStore.authenticationHeaderValue = new authenticationHeader();
remoteStore.authenticationHeaderValue.userName = credentialUser;
remoteStore.authenticationHeaderValue.password = credentialPassword;
remoteStore.Proxy = rssBanditApp.Proxy;
importStream = new MemoryStream();
XmlElement xml = remoteStore.GetBlogroll("blogroll"); // ".opml" is appended by the service!
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml.OuterXml);
doc.Save(importStream);
importStream.Position = 0;
break;
case RemoteStorageProtocolType.FTP:
// Fetch from FTP
Uri remoteUri = new Uri(remoteLocation);
UriBuilder builder = new UriBuilder(remoteUri);
builder.Path += builder.Path.EndsWith("/") ? remoteFileName : "/" + remoteFileName;
/* set up the FTP connection */
FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(builder.Uri);
ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
ftpRequest.KeepAlive = false;
ftpRequest.UseBinary = true;
ftpRequest.UsePassive = settings.GetProperty(Ps.FtpConnectionModePassive, true);
ftpRequest.Credentials = new NetworkCredential(credentialUser, credentialPassword);
// Create a file stream and get the file into that
tempFileName = Path.GetTempFileName();
Stream fileStream = File.Create(tempFileName);
/* perform download */
try
{
// The buffer size is set to 2kb
const int buffLength = 2048;
byte[] buff = new byte[buffLength];
var response = (FtpWebResponse)ftpRequest.GetResponse();
// Stream to which the file to be upload is written
Stream strm = response.GetResponseStream();
if (strm != null)
{
// Read from the FTP stream 2kb at a time
int contentLen = strm.Read(buff, 0, buffLength);
// Till Stream content ends
while (contentLen != 0)
{
// Write Content from the file stream to the
// FTP Upload Stream
fileStream.Write(buff, 0, contentLen);
contentLen = strm.Read(buff, 0, buffLength);
}
// Close the Response Stream
strm.Close();
}
}
catch (Exception ex)
{
//ToDO: Add support for switching between active and passive mode
this.p_operationException = ex;
_log.Error("FTP Download Error", ex);
}
fileStream.Close();
// save new setting:
//settings.SetProperty("RemoteFeedlist/Ftp.ConnectionMode.Passive", connectionMode_Passive);
// Open the temporary file so we can import it
if (p_operationException == null)
{
importStream = File.OpenRead(tempFileName);
}
break;
case RemoteStorageProtocolType.WebDAV:
remoteUri = new Uri(remoteLocation.EndsWith("/")
? remoteLocation + remoteFileName
: remoteLocation + "/" + remoteFileName);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(remoteUri);
request.Method = "GET";
request.AllowAutoRedirect = true;
request.UserAgent = RssBanditApplication.UserAgent;
request.Proxy = rssBanditApp.Proxy;
if (!string.IsNullOrEmpty(credentialUser))
{
NetworkCredential nc =
FeedSource.CreateCredentialsFrom(credentialUser, credentialPassword);
CredentialCache cc = new CredentialCache();
cc.Add(remoteUri, "Basic", nc);
cc.Add(remoteUri, "Digest", nc);
cc.Add(remoteUri, "NTLM", nc);
request.Credentials = cc;
}
importStream = request.GetResponse().GetResponseStream();
break;
default:
Debug.Assert(false,
"unknown remote protocol: '" + remoteProtocol + "' in RemoteFeedlistThreadHandler");
break;
}
// Now import the downloaded feed list
if (importStream != null)
{
try
{
if ((remoteProtocol == RemoteStorageProtocolType.dasBlog) ||
(remoteProtocol == RemoteStorageProtocolType.dasBlog_1_3))
{
rssBanditApp.BanditFeedSource.ImportFeedlist(importStream);
}
else
{
Synchronize(importStream, syncFormat);
}
}
catch (Exception ex)
{
p_operationException = ex;
}
finally
{
importStream.Close();
}
}
if (tempFileName != null)
{
File.Delete(tempFileName);
}
}
catch (ThreadAbortException)
{
// eat up
}
catch (Exception ex)
{
p_operationException = ex;
_log.Error("RunDownload(" + syncFormat + ") Exception", ex);
}
finally
{
WorkDone.Set();
}
}
/// <summary>
/// Upload application state either as a ZIP file or as a SIAM file
/// </summary>
/// <param name="syncFormat">The synchronization format to use</param>
public void RunUpload(SynchronizationFormat syncFormat)
{
List <string> files = new List <string>(new[] {
RssBanditApplication.GetFeedSourcesFileName(),
RssBanditApplication.GetFlagItemsFileName(),
RssBanditApplication.GetSearchFolderFileName(),
RssBanditApplication.GetSentItemsFileName(),
RssBanditApplication.GetWatchedItemsFileName()
});
// add files managed by Bandit data storage (column layout and user identities):
IUserRoamingDataService dataService = IoC.Resolve <IUserRoamingDataService>();
if (dataService != null)
{
files.AddRange(dataService.GetUserDataFileNames());
}
// add files managed by NewComponents feed source data storage (e.g. Nntp Server Definitions filename) :
rssBanditApp.FeedSources.ForEach(f =>
{
files.AddRange(f.GetDataServiceFiles());
files.Add(f.SubscriptionLocation.Location);
});
try
{
rssBanditApp.SaveApplicationState();
// Older versions support:
FeedSourceEntry entry = rssBanditApp.FeedSources.Sources.FirstOrDefault(
fs => fs.SourceType == FeedSourceType.DirectAccess);
if (entry != null)
{
//copy BanditFeedSource feed list to subscriptions.xml (backward versions compatibility support)
File.Copy(entry.Source.SubscriptionLocation.Location,
RssBanditApplication.OldVersionSupport.GetSubscriptionsFileName(),
true);
//convert subscriptions.xml to feedlist.xml then save to temp folder
using (Stream xsltStream = Resource.GetStream("Resources.feedlist2subscriptions.xslt"))
{
XslCompiledTransform xslt = new XslCompiledTransform();
xslt.Load(new XmlTextReader(xsltStream));
xslt.Transform(
entry.Source.SubscriptionLocation.Location,
RssBanditApplication.OldVersionSupport.GetFeedListFileName());
}
files.AddRange(new[] {
RssBanditApplication.OldVersionSupport.GetSubscriptionsFileName(),
RssBanditApplication.OldVersionSupport.GetFeedListFileName()
});
}
using (MemoryStream tempStream = new MemoryStream())
{
//ZipOutputStream zos;
switch (remoteProtocol)
{
case RemoteStorageProtocolType.UNC:
using (FileStream fs = FileHelper.OpenForWrite(
Path.Combine(Environment.ExpandEnvironmentVariables(remoteLocation), remoteFileName)))
{
var zos = new ZipOutputStream(fs);
FileHelper.ZipFiles(files, zos);
}
break;
case RemoteStorageProtocolType.dasBlog:
//save direct access feed list as OPML:
rssBanditApp.BanditFeedSource.SaveFeedList(tempStream, FeedListFormat.OPML);
tempStream.Position = 0;
XmlDocument doc = new XmlDocument();
doc.Load(tempStream);
// Send it to the web service
ConfigEditingService remoteStore = new ConfigEditingService();
remoteStore.Url = remoteLocation;
remoteStore.authenticationHeaderValue = new authenticationHeader();
remoteStore.authenticationHeaderValue.userName = credentialUser;
remoteStore.authenticationHeaderValue.password = credentialPassword;
remoteStore.Proxy = rssBanditApp.Proxy;
//TODO: figure out, when we have to use Credentials????
// remoteStore.Credentials = FeedSource.CreateCredentialsFrom(credentialUser, credentialPassword);
remoteStore.PostBlogroll("blogroll", doc.DocumentElement);
// ".opml" is appended by the service!
break;
case RemoteStorageProtocolType.FTP: // Send to FTP server
var zosFtp = new ZipOutputStream(tempStream);
FileHelper.ZipFiles(files, zosFtp);
tempStream.Position = 0;
var ftpUri = new Uri(remoteLocation);
UriBuilder builder = new UriBuilder(ftpUri);
builder.Path += builder.Path.EndsWith("/") ? remoteFileName : "/" + remoteFileName;
/* set up the FTP connection */
FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(builder.Uri);
ftpRequest.Method = WebRequestMethods.Ftp.UploadFile;
ftpRequest.KeepAlive = false;
ftpRequest.UseBinary = true;
ftpRequest.UsePassive = settings.GetProperty(Ps.FtpConnectionModePassive, true);
ftpRequest.Credentials = new NetworkCredential(credentialUser, credentialPassword);
ftpRequest.ContentLength = tempStream.Length;
/* perform upload */
try
{
// The buffer size is set to 2kb
const int buffLength = 2048;
byte[] buff = new byte[buffLength];
// Stream to which the file to be upload is written
using (Stream strm = ftpRequest.GetRequestStream())
{
// Read from the file stream 2kb at a time
int contentLen = tempStream.Read(buff, 0, buffLength);
// Till Stream content ends
while (contentLen != 0)
{
// Write Content from the file stream to the
// FTP Upload Stream
strm.Write(buff, 0, contentLen);
contentLen = tempStream.Read(buff, 0, buffLength);
}
}
}
catch (Exception ex)
{
//ToDO: Add support for switching between active and passive mode
p_operationException = ex;
_log.Error("FTP Upload Error", ex);
}
break;
case RemoteStorageProtocolType.WebDAV:
var zosDav = new ZipOutputStream(tempStream);
FileHelper.ZipFiles(files, zosDav);
var remoteUri = new Uri(remoteLocation.EndsWith("/")
? remoteLocation + remoteFileName
: remoteLocation + "/" + remoteFileName);
tempStream.Position = 0;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(remoteUri);
request.Method = "PUT";
request.ContentType = "application/zip";
request.AllowAutoRedirect = true;
request.UserAgent = RssBanditApplication.UserAgent;
request.Proxy = rssBanditApp.Proxy;
if (!string.IsNullOrEmpty(credentialUser))
{
NetworkCredential nc =
FeedSource.CreateCredentialsFrom(credentialUser, credentialPassword);
CredentialCache cc = new CredentialCache();
cc.Add(remoteUri, "Basic", nc);
cc.Add(remoteUri, "Digest", nc);
cc.Add(remoteUri, "NTLM", nc);
request.Credentials = cc;
}
byte[] bytes = new byte[tempStream.Length];
tempStream.Read(bytes, 0, bytes.Length);
request.ContentLength = bytes.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(bytes, 0, bytes.Length);
requestStream.Close();
break;
default:
Debug.Assert(false,
"unknown remote protocol: '" + remoteProtocol +
"' in RemoteFeedlistThreadHandler");
break;
}
}
// Cool, we made it
}
catch (ThreadAbortException)
{
// eat up
}
catch (Exception ex)
{
p_operationException = ex;
_log.Error("RunUpload(" + syncFormat + ") Exception", ex);
}
finally
{
WorkDone.Set();
}
}
