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));
}