/// <summary />
protected override async Task HandleResponse(RestExecutionContext context, HttpStatusCode statusCode, byte[] message)
{
// TODO: What about binary files? :/
string asString = Encoding.UTF8.GetString(message);
await Journal(context, true, statusCode, asString);
}
/// <summary />
protected override async Task HandleResponse(RestExecutionContext context, HttpStatusCode statusCode, byte[] message)
{
await Task.Run(() =>
{
Debug.WriteLine(string.Format(
CultureInfo.InvariantCulture,
"r:{0}\r\n{1}",
context.ActivityId,
Encoding.UTF8.GetString(message)));
});
}
/// <summary />
protected override async Task HandleRequest(RestExecutionContext context, byte[] message)
{
await Task.Run(() =>
{
Debug.WriteLine(string.Format(
CultureInfo.InvariantCulture,
"R:{0} - {1} {2}\r\n{3}",
context.ActivityId,
context.Method,
context.RequestUri.AbsolutePath,
Encoding.UTF8.GetString(message)));
});
}
private async Task Journal(RestExecutionContext context, bool direction, HttpStatusCode?statusCode, string message)
{
const string Database = "SqlServerLogging";
if (ConfigurationManager.ConnectionStrings[Database] == null)
{
throw new ZincException(ER.Rest_SqlServer_ConnectionMissing, Database);
}
/*
*
*/
SqlConnection conn = new SqlConnection();
conn.ConnectionString = ConfigurationManager.ConnectionStrings[Database].ConnectionString;
try
{
await conn.OpenAsync();
}
catch (SqlException ex)
{
throw new ZincException(ER.Rest_SqlServer_Open, ex, Database);
}
catch (ConfigurationErrorsException ex)
{
throw new ZincException(ER.Rest_SqlServer_Open, ex, Database);
}
catch (InvalidOperationException ex)
{
throw new ZincException(ER.Rest_SqlServer_Open, ex, Database);
}
/*
*
*/
object accessToken;
object statusCodeStr;
if (context.AccessToken != null)
{
accessToken = context.AccessToken;
}
else
{
accessToken = DBNull.Value;
}
if (statusCode.HasValue == true)
{
statusCodeStr = statusCode.ToString();
}
else
{
statusCodeStr = DBNull.Value;
}
/*
*
*/
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "insert into ZN_REST_JOURNAL ( Application, ActivityId, AccessToken, ExecutionId, Method, URI, Direction, StatusCode, JsonMessage, Moment ) "
+ "values ( @Application, @ActivityId, @AccessToken, @ExecutionId, @Method, @URI, @Direction, @StatusCode, @JsonMessage, @Moment ) ";
cmd.CommandType = CommandType.Text;
cmd.Parameters.Add("@Application", SqlDbType.VarChar).Value = App.Name;
cmd.Parameters.Add("@ActivityId", SqlDbType.UniqueIdentifier).Value = context.ActivityId;
cmd.Parameters.Add("@AccessToken", SqlDbType.VarChar).Value = accessToken;
cmd.Parameters.Add("@ExecutionId", SqlDbType.UniqueIdentifier).Value = context.ExecutionId;
cmd.Parameters.Add("@Method", SqlDbType.NVarChar).Value = context.Method.ToString();
cmd.Parameters.Add("@URI", SqlDbType.NVarChar).Value = context.RequestUri.ToString();
cmd.Parameters.Add("@Direction", SqlDbType.Bit).Value = direction;
cmd.Parameters.Add("@StatusCode", SqlDbType.NVarChar).Value = statusCodeStr;
cmd.Parameters.Add("@JsonMessage", SqlDbType.NVarChar).Value = message;
cmd.Parameters.Add("@Moment", SqlDbType.DateTime).Value = DateTime.UtcNow;
try
{
await cmd.ExecuteNonQueryAsync();
}
catch (SqlException ex)
{
throw new ZincException(ER.Rest_SqlServer_ExecuteNonQuery, ex, Database);
}
/*
*
*/
try
{
conn.Close();
}
catch (SqlException)
{
}
}
/// <summary />
protected override async Task HandleRequest(RestExecutionContext context, byte[] message)
{
string asString = Encoding.UTF8.GetString(message);
await Journal(context, false, null, asString);
}
/// <summary>
/// Mandatory <see cref="DelegatingHandler" /> for Zinc services, since it will
/// ensure that the expected headers are in place.
/// </summary>
/// <param name="request">The HTTP request message to send to the server.</param>
/// <param name="cancellationToken">A cancellation token to cancel operation.</param>
/// <returns>The task object representing the asynchronous operation.</returns>
/// <remarks>
/// When configuring the WebAPI pipeline, <see cref="ExecutionHandler" /> must
/// always be placed first.
/// </remarks>
protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
#region Validations
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
#endregion
/*
* Ensures that the request contains valid headers for ActivityId and
* ExecutionId.
*/
RestExecutionContext ctx = new RestExecutionContext();
ctx.ExecutionId = Guid.NewGuid();
ctx.ActivityId = Guid.Empty;
ctx.Method = request.Method;
ctx.RequestUri = request.RequestUri;
ctx.MomentStart = PreciseDateTime.UtcNow;
/*
*
*/
if (request.Headers.Contains(ZnHeaders.ActivityId) == true)
{
var h = request.Headers.First(x => x.Key == ZnHeaders.ActivityId);
var v = h.Value.First();
Guid activityId;
try
{
activityId = new Guid(v);
}
catch (FormatException)
{
activityId = Guid.Empty;
}
catch (ArgumentNullException)
{
activityId = Guid.Empty;
}
ctx.ActivityId = activityId;
}
/*
*
*/
if (request.Headers.Authorization != null &&
request.Headers.Authorization.Scheme == "Bearer")
{
ctx.AccessToken = request.Headers.Authorization.Parameter;
}
/*
*
*/
request.Properties[RestExecutionContext.PropertyName] = ctx;
/*
* Defer execution to the actual implementation.
*/
var response = await base.SendAsync(request, cancellationToken);
/*
*
*/
response.Headers.Add(ZnHeaders.ExecutionId, ctx.ExecutionId.ToString("D"));
response.Headers.Add(ZnHeaders.MomentStart, ctx.MomentStart.ToString("O", CultureInfo.InvariantCulture));
response.Headers.Add(ZnHeaders.MomentEnd, DateTime.UtcNow.ToString("O", CultureInfo.InvariantCulture));
return(response);
}
/// <summary /> protected abstract Task HandleResponse(RestExecutionContext context, HttpStatusCode statusCode, byte[] message);
/// <summary /> protected abstract Task HandleRequest(RestExecutionContext context, byte[] message);
