public async Task <bool> PreconditionsOK(Dictionary <string, string> propertiesAndHeaders, HttpResponse response)
{
string calendarResourceId;
propertiesAndHeaders.TryGetValue("calendarResourceID", out calendarResourceId);
string url;
propertiesAndHeaders.TryGetValue("url", out url);
if (calendarResourceId == null && !await _collectionRepository.Exist(url))
{
response.StatusCode = (int)HttpStatusCode.NotFound;
return(false);
}
if (calendarResourceId != null && !await _resourceRespository.Exist(url))
{
response.StatusCode = (int)HttpStatusCode.NotFound;
return(false);
}
return(true);
}
//TODO: Poner esto en la capa de datos
public async Task AddCalendarObjectResource(Dictionary <string, string> propertiesAndHeaders,
HttpResponse response)
{
#region Extracting Properties
string url;
propertiesAndHeaders.TryGetValue("url", out url);
string ifmatch;
var ifMatchEtags = new List <string>();
propertiesAndHeaders.TryGetValue("If-Match", out ifmatch);
if (ifmatch != null)
{
ifMatchEtags = ifmatch.Split(',').ToList();
}
string ifnonematch;
var ifNoneMatchEtags = new List <string>();
propertiesAndHeaders.TryGetValue("If-None-Match", out ifnonematch);
if (ifnonematch != null)
{
ifNoneMatchEtags = ifnonematch.Split(',').ToList();
}
string body;
propertiesAndHeaders.TryGetValue("body", out body);
#endregion
//Note: calendar object resource = COR
//CheckAllPreconditions
PreconditionCheck = new PutPrecondition(StorageManagement, _collectionRespository, _resourceRespository);
if (!await PreconditionCheck.PreconditionsOK(propertiesAndHeaders, response))
{
return;
}
var resourceExist = await _resourceRespository.Exist(url);
//If the ifmatch is included i look for the etag in the resource, but first the resource has to exist.
//If all is ok and the if-match etag matches the etag in the resource then i update the resource.
//If the if-match dont match then i set that the precondition failed.
if (ifMatchEtags.Count > 0)
{
if (resourceExist)
{
var resource = _resourceRespository.Get(url);
var resourceEtag =
XmlTreeStructure.Parse(resource.Properties.FirstOrDefault(x => x.Name == "getetag")?.Value)
.Value;
if (ifMatchEtags.Contains(resourceEtag))
{
await UpdateCalendarObjectResource(propertiesAndHeaders, response);
return;
}
response.StatusCode = (int)HttpStatusCode.PreconditionFailed;
return;
}
}
if (ifNoneMatchEtags.Count > 0 && ifNoneMatchEtags.Contains("*"))
{
if (!resourceExist)
{
await CreateCalendarObjectResource(propertiesAndHeaders, response);
return;
}
response.StatusCode = (int)HttpStatusCode.PreconditionFailed;
return;
}
if (resourceExist && StorageManagement.ExistCalendarObjectResource(url))
{
await UpdateCalendarObjectResource(propertiesAndHeaders, response);
return;
}
await CreateCalendarObjectResource(propertiesAndHeaders, response);
//return HTTP 201 Created
}