private IReadOnlyList <EntityVersion <WebResourceName, string> > ExtractVersions(XmlDocumentWithNamespaceManager responseXml)
{
var responseNodes = responseXml.XmlDocument.SelectNodes("/D:multistatus/D:response", responseXml.XmlNamespaceManager);
if (responseNodes == null)
{
return(new EntityVersion <WebResourceName, string> [0]);
}
var entities = new List <EntityVersion <WebResourceName, string> >();
// ReSharper disable once LoopCanBeConvertedToQuery
// ReSharper disable once PossibleNullReferenceException
foreach (XmlElement responseElement in responseNodes)
{
var urlNode = responseElement.SelectSingleNode("D:href", responseXml.XmlNamespaceManager);
var etagNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getetag", responseXml.XmlNamespaceManager);
if (urlNode != null &&
etagNode != null &&
_serverUrl.AbsolutePath != UriHelper.DecodeUrlString(urlNode.InnerText))
{
var uri = new WebResourceName(urlNode.InnerText);
var etag = HttpUtility.GetQuotedEtag(etagNode.InnerText);
if (s_logger.IsDebugEnabled)
{
s_logger.DebugFormat($"Got version '{uri}': '{etag}'");
}
entities.Add(EntityVersion.Create(uri, etag));
}
}
return(entities);
}
public async Task <IReadOnlyList <EntityVersion <WebResourceName, string> > > GetVersions(IEnumerable <WebResourceName> eventUrls)
{
WebResourceName firstResourceNameOrNull = null;
var requestBody = @"<?xml version=""1.0""?>
<C:calendar-multiget xmlns:C=""urn:ietf:params:xml:ns:caldav"" xmlns:D=""DAV:"">
<D:prop>
<D:getetag/>
</D:prop>
" +
String.Join(
"\r\n",
eventUrls.Select(u =>
{
if (firstResourceNameOrNull == null)
{
firstResourceNameOrNull = u;
}
return($"<D:href>{SecurityElement.Escape(u.OriginalAbsolutePath)}</D:href>");
})) + @"
</C:calendar-multiget>";
var responseXml = await _webDavClient.ExecuteWebDavRequestAndReadResponse(
UriHelper.AlignServerUrl(_serverUrl, firstResourceNameOrNull),
"REPORT",
1,
null,
null,
"application/xml",
requestBody
);
XmlNodeList responseNodes = responseXml.XmlDocument.SelectNodes("/D:multistatus/D:response", responseXml.XmlNamespaceManager);
var entities = new List <EntityVersion <WebResourceName, string> >();
if (responseNodes == null)
{
return(entities);
}
// ReSharper disable once LoopCanBeConvertedToQuery
// ReSharper disable once PossibleNullReferenceException
foreach (XmlElement responseElement in responseNodes)
{
var urlNode = responseElement.SelectSingleNode("D:href", responseXml.XmlNamespaceManager);
var etagNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getetag", responseXml.XmlNamespaceManager);
if (urlNode != null && etagNode != null)
{
entities.Add(EntityVersion.Create(new WebResourceName(urlNode.InnerText),
HttpUtility.GetQuotedEtag(etagNode.InnerText)));
}
}
return(entities);
}
private IReadOnlyList <EntityVersion <WebResourceName, string> > ExtractVersions(XmlDocumentWithNamespaceManager responseXml)
{
s_logger.Debug("Entered ExtractVersions.");
var entities = new List <EntityVersion <WebResourceName, string> > ();
XmlNodeList responseNodes = responseXml.XmlDocument.SelectNodes("/D:multistatus/D:response", responseXml.XmlNamespaceManager);
// ReSharper disable once LoopCanBeConvertedToQuery
// ReSharper disable once PossibleNullReferenceException
foreach (XmlElement responseElement in responseNodes)
{
var urlNode = responseElement.SelectSingleNode("D:href", responseXml.XmlNamespaceManager);
var etagNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getetag", responseXml.XmlNamespaceManager);
var contentTypeNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getcontenttype", responseXml.XmlNamespaceManager);
if (urlNode != null && etagNode != null)
{
string contentType = contentTypeNode?.InnerText ?? string.Empty;
var eTag = HttpUtility.GetQuotedEtag(etagNode.InnerText);
// the directory is also included in the list. It has a etag of '"None"' and is skipped
// in Owncloud eTag is empty for directory
// Yandex returns some eTag and the urlNode for the directory itself, so we need to filter that out aswell
// TODO: add vlist support but for now filter out sogo vlists since we can't parse them atm
if (!string.IsNullOrEmpty(eTag) &&
String.Compare(eTag, @"""None""", StringComparison.OrdinalIgnoreCase) != 0 &&
_serverUrl.AbsolutePath != UriHelper.DecodeUrlString(urlNode.InnerText) &&
_contentTypePredicate(contentType)
)
{
if (s_logger.IsDebugEnabled)
{
s_logger.DebugFormat($"'{urlNode.InnerText}': '{eTag}'");
}
entities.Add(EntityVersion.Create(new WebResourceName(urlNode.InnerText), eTag));
}
}
}
s_logger.Debug("Exiting ExtractVersions.");
return(entities);
}
private async Task <string> GetEtagViaPropfind(Uri url)
{
var document = await _webDavClient.ExecuteWebDavRequestAndReadResponse(
url,
"PROPFIND",
0,
null,
null,
"application/xml",
@"<?xml version='1.0'?>
<D:propfind xmlns:D=""DAV:"">
<D:prop>
<D:getetag/>
</D:prop>
</D:propfind>
"
);
XmlNode eTagNode = document.XmlDocument.SelectSingleNode("/D:multistatus/D:response/D:propstat/D:prop/D:getetag", document.XmlNamespaceManager);
return(HttpUtility.GetQuotedEtag(eTagNode.InnerText));
}
private async Task <IReadOnlyList <EntityVersion <WebResourceName, string> > > GetVersions(DateTimeRange?range, string entityType)
{
var entities = new List <EntityVersion <WebResourceName, string> >();
try
{
var responseXml = await _webDavClient.ExecuteWebDavRequestAndReadResponse(
_serverUrl,
"REPORT",
1,
null,
null,
"application/xml",
string.Format(
@"<?xml version=""1.0""?>
<C:calendar-query xmlns:C=""urn:ietf:params:xml:ns:caldav"">
<D:prop xmlns:D=""DAV:"">
<D:getetag/>
</D:prop>
<C:filter>
<C:comp-filter name=""VCALENDAR"">
<C:comp-filter name=""{0}"">
{1}
</C:comp-filter>
</C:comp-filter>
</C:filter>
</C:calendar-query>
",
entityType,
range == null ? string.Empty : string.Format(@"<C:time-range start=""{0}"" end=""{1}""/>",
range.Value.From.ToString(s_calDavDateTimeFormatString),
range.Value.To.ToString(s_calDavDateTimeFormatString))
));
XmlNodeList responseNodes = responseXml.XmlDocument.SelectNodes("/D:multistatus/D:response", responseXml.XmlNamespaceManager);
// ReSharper disable once LoopCanBeConvertedToQuery
// ReSharper disable once PossibleNullReferenceException
foreach (XmlElement responseElement in responseNodes)
{
var urlNode = responseElement.SelectSingleNode("D:href", responseXml.XmlNamespaceManager);
var etagNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getetag", responseXml.XmlNamespaceManager);
if (urlNode != null &&
etagNode != null &&
_serverUrl.AbsolutePath != UriHelper.DecodeUrlString(urlNode.InnerText))
{
var uri = new WebResourceName(urlNode.InnerText);
entities.Add(EntityVersion.Create(uri, HttpUtility.GetQuotedEtag(etagNode.InnerText)));
}
}
}
catch (WebDavClientException x)
{
// Workaround for Synology NAS, which returns 404 insteaod of an empty response if no events are present
if (x.StatusCode == HttpStatusCode.NotFound && await IsResourceCalender())
{
return(entities);
}
throw;
}
return(entities);
}
public async Task <IReadOnlyList <EntityVersion <Uri, string> > > GetContacts()
{
var entities = new List <EntityVersion <Uri, string> >();
try
{
var responseXml = await _webDavClient.ExecuteWebDavRequestAndReadResponse(
_serverUrl,
"PROPFIND",
1,
null,
null,
"application/xml",
@"<?xml version='1.0'?>
<D:propfind xmlns:D=""DAV:"">
<D:prop>
<D:getetag/>
<D:getcontenttype/>
</D:prop>
</D:propfind>
"
);
XmlNodeList responseNodes = responseXml.XmlDocument.SelectNodes("/D:multistatus/D:response", responseXml.XmlNamespaceManager);
// ReSharper disable once LoopCanBeConvertedToQuery
// ReSharper disable once PossibleNullReferenceException
foreach (XmlElement responseElement in responseNodes)
{
var urlNode = responseElement.SelectSingleNode("D:href", responseXml.XmlNamespaceManager);
var etagNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getetag", responseXml.XmlNamespaceManager);
var contentTypeNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getcontenttype", responseXml.XmlNamespaceManager);
if (urlNode != null && etagNode != null)
{
string contentType = contentTypeNode.InnerText ?? string.Empty;
var eTag = HttpUtility.GetQuotedEtag(etagNode.InnerText);
// the directory is also included in the list. It has a etag of '"None"' and is skipped
// in Owncloud eTag is empty for directory
// Yandex returns some eTag and the urlNode for the directory itself, so we need to filter that out aswell
// TODO: add vlist support but for now filter out sogo vlists since we can't parse them atm
if (!string.IsNullOrEmpty(eTag) &&
String.Compare(eTag, @"""None""", StringComparison.OrdinalIgnoreCase) != 0 &&
_serverUrl.AbsolutePath != UriHelper.DecodeUrlString(urlNode.InnerText) &&
contentType != "text/x-vlist"
)
{
var uri = UriHelper.UnescapeRelativeUri(_serverUrl, urlNode.InnerText);
entities.Add(EntityVersion.Create(uri, eTag));
}
}
}
}
catch (WebException x)
{
if (x.Response != null)
{
var httpWebResponse = (HttpWebResponse)x.Response;
if (httpWebResponse.StatusCode == HttpStatusCode.NotFound)
{
return(entities);
}
}
throw;
}
return(entities);
}