public async Task <JObject> GetEntityByUrl(string entityUrl, ContentHubConnectionSettings contentHubConnectionSettings)
{
var request = WebRequest.Create(entityUrl);
request.Method = "GET";
var token = await GetToken(contentHubConnectionSettings).ConfigureAwait(false);
request.Headers.Add("X-Auth-Token", token);
string responseContent = null;
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var streamReader = new StreamReader(responseStream))
{
responseContent = streamReader.ReadToEnd();
}
}
}
if (!string.IsNullOrEmpty(responseContent))
{
return(JObject.Parse(responseContent));
}
return(null);
}
private async Task <Dictionary <string, JObject> > GetRelatedEntitiesRecursively(JObject startEntity, List <string> relatedEntityPaths, ContentHubConnectionSettings contentHubConnectionSettings)
{
try
{
if (relatedEntityPaths != null && relatedEntityPaths.Count > 0)
{
var relatedEntity = startEntity;
var relatedObjects = new Dictionary <string, JObject>();
for (int i = 0; i < relatedEntityPaths.Count; i++)
{
var relatedEntityTokens = relatedEntity.SelectTokens(relatedEntityPaths[i]);
if (relatedEntityTokens != null && relatedEntityTokens.Count() > 0)
{
foreach (var relatedEntityToken in relatedEntityTokens)
{
var relatedEntityUrl = relatedEntityToken.Value <string>();
if (!string.IsNullOrEmpty(relatedEntityUrl) && !relatedObjects.ContainsKey(relatedEntityUrl))
{
relatedEntity = await _contentHubHelper.GetEntityByUrl(relatedEntityUrl, contentHubConnectionSettings).ConfigureAwait(false);
if (relatedEntity == null)
{
return(null);
}
else if (i == relatedEntityPaths.Count - 1)
{
relatedObjects.Add(relatedEntityUrl, relatedEntity);
}
else
{
var remainingPaths = relatedEntityPaths.GetRange(i + 1, relatedEntityPaths.Count - i - 1);
var recursiveResults = await GetRelatedEntitiesRecursively(relatedEntity, remainingPaths, contentHubConnectionSettings).ConfigureAwait(false);
if (recursiveResults != null && recursiveResults.Values.Count > 0)
{
relatedObjects.AddRange(recursiveResults);
}
}
}
}
}
}
return(relatedObjects.Count() > 0 ? relatedObjects : null);
}
return(null);
}
catch (Exception ex)
{
Log.Error($"Cannot parse entity at one of the path provided: {string.Join(", ", relatedEntityPaths)}", ex, this);
throw ex;
}
}
/// <summary>
/// Get security token to use for Content Hub API calls
/// </summary>
/// <param name="contentHubPolicy"></param>
/// <returns></returns>
public async Task <string> GetToken(ContentHubConnectionSettings contentHubConnectionSettings)
{
try
{
var cache = _cacheManager.GetCache(CACHE_NAME);
if (cache == null)
{
cache = _cacheManager.CreateCache(CACHE_NAME);
}
string securityToken = await cache.Get <string>(contentHubConnectionSettings.InstanceName).ConfigureAwait(false);
if (string.IsNullOrEmpty(securityToken))
{
var request = WebRequest.Create(string.Format("{0}/api/authenticate", contentHubConnectionSettings.ProtocolAndHost));
request.Method = "POST";
request.ContentType = "application/json";
using (var streamWriter = new StreamWriter(request.GetRequestStream()))
{
var jsonObject = new
{
user_name = contentHubConnectionSettings.UserName,
password = contentHubConnectionSettings.Password,
discard_existing = false
};
streamWriter.Write(JsonConvert.SerializeObject(jsonObject));
streamWriter.Flush();
streamWriter.Close();
}
string responseContent = null;
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var streamReader = new StreamReader(responseStream))
{
responseContent = streamReader.ReadToEnd();
}
}
}
var o = JObject.Parse(responseContent);
securityToken = (string)o["token"];
var cacheEntryOptions = new CacheEntryOptions
{
AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(3000)
};
await cache.SetString(contentHubConnectionSettings.InstanceName, securityToken, cacheEntryOptions).ConfigureAwait(false);
}
//Log.Warn($"retrieved CH token: {securityToken}", this);
return(securityToken);
}
catch (Exception ex)
{
Log.Error("Error retrieving Content Hub token", ex, this);
throw;
}
}
public async Task <JObject> GetEntityById(string entityId, ContentHubConnectionSettings contentHubConnectionSettings)
{
var entityUrl = $"{contentHubConnectionSettings.ProtocolAndHost}/api/entities/{entityId}";
return(await GetEntityByUrl(entityUrl, contentHubConnectionSettings));
}
