public static Uri AlignServerUrl(Uri configuredServerUrl, WebResourceName referenceResourceNameOrNull)
{
if (referenceResourceNameOrNull != null)
{
var filename = Path.GetFileName(referenceResourceNameOrNull.OriginalAbsolutePath);
if (!string.IsNullOrEmpty(filename))
{
var filenameIndex = referenceResourceNameOrNull.OriginalAbsolutePath.LastIndexOf(filename);
if (filenameIndex != -1)
{
var resourcePath = referenceResourceNameOrNull.OriginalAbsolutePath.Remove(filenameIndex);
var newUri = new Uri(configuredServerUrl, resourcePath);
// Only if new aligned Uri has a different encoded AbsolutePath but is identical when decoded return newUri
// else we assume filename truncation didn't work and return the original configuredServerUrl
if (newUri.AbsolutePath != configuredServerUrl.AbsolutePath)
{
if (DecodeUrlString(newUri.AbsolutePath) == DecodeUrlString(configuredServerUrl.AbsolutePath))
{
return(newUri);
}
s_logger.DebugFormat("Aligned decoded resource uri path '{0}' different from server uri '{1}'", newUri.AbsolutePath, configuredServerUrl.AbsolutePath);
}
}
}
}
return(configuredServerUrl);
}
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($"Got version '{uri}': '{etag}'");
}
entities.Add(EntityVersion.Create(uri, etag));
}
}
return(entities);
}
public Task <EntityVersion <WebResourceName, string> > TryUpdateEntity(WebResourceName url, string etag, string iCalData)
{
var path = Path.Combine(_directory.FullName, url.OriginalAbsolutePath);
File.WriteAllText(path, iCalData);
return(Task.FromResult(EntityVersion.Create(url, File.GetLastWriteTimeUtc(path).ToString("o"))));
}
public async Task <IReadOnlyList <EntityVersion <WebResourceName, string> > > GetVersions(IEnumerable <WebResourceName> eventUrls)
{
WebResourceName firstResourceNameOrNull = null;
var requestBody = @"<?xml version=""1.0""?>
<C:calendar-multiget xmlns:C=""urn:ietf:params:xml:ns:caldav"" xmlns:D=""DAV:"">
<D:prop>
<D:getetag/>
</D:prop>
" +
String.Join(
"\r\n",
eventUrls.Select(u =>
{
if (firstResourceNameOrNull == null)
{
firstResourceNameOrNull = u;
}
return($"<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
);
return(ExtractVersions(responseXml));
}
public async Task DeleteEntity(WebResourceName uri, string etag)
{
s_logger.DebugFormat("Deleting entity '{0}'", uri);
var absoluteEventUrl = new Uri(_serverUrl, uri.OriginalAbsolutePath);
s_logger.DebugFormat("Absolute entity location: '{0}'", absoluteEventUrl);
IHttpHeaders responseHeaders = await _webDavClient.ExecuteWebDavRequestAndReturnResponseHeaders(
absoluteEventUrl,
"DELETE",
null,
etag,
null,
null,
string.Empty);
IEnumerable <string> errorValues;
if (responseHeaders.TryGetValues("X-Dav-Error", out errorValues))
{
var errorList = errorValues.ToList();
if (errorList.Any(v => v != "200 No error"))
{
throw new Exception(string.Format("Error deleting entity with url '{0}' and etag '{1}': {2}", uri, etag, string.Join(",", errorList)));
}
}
}
public async Task <IReadOnlyList <EntityWithId <WebResourceName, string> > > GetEntities(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:displayname/>
<C:calendar-data/>
</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 <EntityWithId <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 dataNode = responseElement.SelectSingleNode("D:propstat/D:prop/C:calendar-data", responseXml.XmlNamespaceManager);
if (urlNode != null && !string.IsNullOrEmpty(dataNode?.InnerText))
{
entities.Add(EntityWithId.Create(new WebResourceName(urlNode.InnerText), dataNode.InnerText));
}
}
return(entities);
}
public async Task <EntityVersion <WebResourceName, string> > TryUpdateEntity(WebResourceName url, string etag, string contents)
{
s_logger.DebugFormat("Updating entity '{0}'", url);
var absoluteEventUrl = new Uri(_serverUrl, url.OriginalAbsolutePath);
s_logger.DebugFormat("Absolute entity location: '{0}'", absoluteEventUrl);
IHttpHeaders responseHeaders;
try
{
responseHeaders = await _webDavClient.ExecuteWebDavRequestAndReturnResponseHeaders(
absoluteEventUrl,
"PUT",
null,
etag,
null,
"text/calendar",
contents);
}
catch (WebDavClientException x) when(x.StatusCode == HttpStatusCode.NotFound || x.StatusCode == HttpStatusCode.PreconditionFailed)
{
return(null);
}
if (s_logger.IsDebugEnabled)
{
s_logger.DebugFormat("Updated entity. Server response header: '{0}'", responseHeaders.ToString().Replace("\r\n", " <CR> "));
}
Uri effectiveEventUrl;
if (responseHeaders.LocationOrNull != null)
{
s_logger.DebugFormat("Server sent new location: '{0}'", responseHeaders.LocationOrNull);
effectiveEventUrl = responseHeaders.LocationOrNull.IsAbsoluteUri ? responseHeaders.LocationOrNull : new Uri(_serverUrl, responseHeaders.LocationOrNull);
s_logger.DebugFormat("New entity location: '{0}'", effectiveEventUrl);
}
else
{
effectiveEventUrl = absoluteEventUrl;
}
var newEtag = responseHeaders.ETagOrNull;
string version;
if (newEtag != null)
{
version = newEtag;
}
else
{
version = await GetEtag(effectiveEventUrl);
}
return(new EntityVersion <WebResourceName, string> (new WebResourceName(effectiveEventUrl), version));
}
public Task <bool> TryDeleteEntity(WebResourceName uri, string etag)
{
var path = Path.Combine(_directory.FullName, uri.OriginalAbsolutePath);
if (!File.Exists(path))
{
return(Task.FromResult(false));
}
File.Delete(path);
return(Task.FromResult(true));
}
public async Task <IReadOnlyList <EntityVersion <WebResourceName, string> > > GetVersions(IEnumerable <WebResourceName> urls)
{
WebResourceName firstResourceNameOrNull = null;
var requestBody = @"<?xml version=""1.0"" encoding=""utf-8"" ?>
<A:addressbook-multiget xmlns:D=""DAV:"" xmlns:A=""urn:ietf:params:xml:ns:carddav"">
<D:prop>
<D:getetag/>
<D:getcontenttype/>
</D:prop>
" +
String.Join(
"\r\n",
urls.Select(u =>
{
if (firstResourceNameOrNull == null)
{
firstResourceNameOrNull = u;
}
return($"<D:href>{SecurityElement.Escape(u.OriginalAbsolutePath)}</D:href>");
})) + @"
</A:addressbook-multiget>
";
try
{
var responseXml = await _webDavClient.ExecuteWebDavRequestAndReadResponse(
UriHelper.AlignServerUrl(_serverUrl, firstResourceNameOrNull),
"REPORT",
0,
null,
null,
"application/xml",
requestBody
);
return(ExtractVersions(responseXml));
}
catch (WebDavClientException x)
{
if (x.StatusCode == HttpStatusCode.NotFound)
{
return new EntityVersion <WebResourceName, string>[] { }
}
;
throw;
}
}
public async Task <EntityVersion <WebResourceName, string> > UpdateEntity(WebResourceName url, string etag, string contents)
{
s_logger.DebugFormat("Updating entity '{0}'", url);
var absoluteContactUrl = new Uri(_serverUrl, url.OriginalAbsolutePath);
s_logger.DebugFormat("Absolute entity location: '{0}'", absoluteContactUrl);
IHttpHeaders responseHeaders = await _webDavClient.ExecuteWebDavRequestAndReturnResponseHeaders(
absoluteContactUrl,
"PUT",
null,
etag,
null,
"text/vcard",
contents);
if (s_logger.IsDebugEnabled)
{
s_logger.DebugFormat("Updated entity. Server response header: '{0}'", responseHeaders.ToString().Replace("\r\n", " <CR> "));
}
Uri effectiveContactUrl;
if (responseHeaders.Location != null)
{
s_logger.DebugFormat("Server sent new location: '{0}'", responseHeaders.Location);
effectiveContactUrl = responseHeaders.Location.IsAbsoluteUri ? responseHeaders.Location : new Uri(_serverUrl, responseHeaders.Location);
s_logger.DebugFormat("New entity location: '{0}'", effectiveContactUrl);
}
else
{
effectiveContactUrl = absoluteContactUrl;
}
var newEtag = responseHeaders.ETag;
string version;
if (newEtag != null)
{
version = newEtag;
}
else
{
version = await GetEtag(effectiveContactUrl);
}
return(new EntityVersion <WebResourceName, string> (new WebResourceName(effectiveContactUrl), version));
}
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 <EntityWithId <WebResourceName, string> > > GetEntities(IEnumerable <WebResourceName> urls)
{
s_logger.Debug("Entered GetEntities.");
WebResourceName firstResourceNameOrNull = null;
var requestBody = @"<?xml version=""1.0"" encoding=""utf-8"" ?>
<A:addressbook-multiget xmlns:D=""DAV:"" xmlns:A=""urn:ietf:params:xml:ns:carddav"">
<D:prop>
<D:getetag/>
<D:getcontenttype/>
<A:address-data/>
</D:prop>
" +
String.Join("\r\n", urls.Select(u =>
{
if (s_logger.IsDebugEnabled)
{
s_logger.Debug($"Requesting: '{u}'");
}
if (firstResourceNameOrNull == null)
{
firstResourceNameOrNull = u;
}
return($"<D:href>{SecurityElement.Escape (u.OriginalAbsolutePath)}</D:href>");
}))
+ @"
</A:addressbook-multiget>
";
var responseXml = await _webDavClient.ExecuteWebDavRequestAndReadResponse(
UriHelper.AlignServerUrl(_serverUrl, firstResourceNameOrNull),
"REPORT",
0,
null,
null,
"application/xml",
requestBody
);
XmlNodeList responseNodes = responseXml.XmlDocument.SelectNodes("/D:multistatus/D:response", responseXml.XmlNamespaceManager);
var entities = new List <EntityWithId <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 dataNode = responseElement.SelectSingleNode("D:propstat/D:prop/A:address-data", responseXml.XmlNamespaceManager);
var contentTypeNode = responseElement.SelectSingleNode("D:propstat/D:prop/D:getcontenttype", responseXml.XmlNamespaceManager);
string contentType = contentTypeNode?.InnerText ?? string.Empty;
if (urlNode != null && dataNode != null && !string.IsNullOrEmpty(dataNode.InnerText) && _contentTypePredicate(contentType))
{
if (s_logger.IsDebugEnabled)
{
s_logger.DebugFormat($"Got: '{urlNode.InnerText}'");
}
entities.Add(EntityWithId.Create(new WebResourceName(urlNode.InnerText), dataNode.InnerText));
}
}
s_logger.Debug("Exiting GetEntities.");
return(entities);
}
