/// <summary>
/// Constructor with specified controller name
/// </summary>
public MapToControllerAttribute(string controllerName, InteractingType iType, uint itemsPerPage = 0, bool allowAnonimus = true)
{
ControllerName = controllerName;
InteractingType = iType;
ItemsPerPage = itemsPerPage;
AllowAnonimus = allowAnonimus;
}
private static RequestDelegate GetHandler<T, TE>(
Dictionary<string,List<AuthorizeAttribute>> restrictions,
Dictionary<Type, EntityKeyDescribtion> entityKeys,
DatabaseTypes dbType,
string connString,
InteractingType interactingType,
bool allowAnonimus,
string authentificationPath,
string accessDeniedPath,
Dictionary<string,RequestParamName> _requestParams,
JsonSerializerOptions jsonSerializerOptions = null,
Func<T> customDbContextFactory = null ) where T : DbContext, IDisposable
where TE : class
{
return async (context) =>
{
bool authResult = Authorization<TE>(context, HttpMethod.Get, restrictions, allowAnonimus,authentificationPath,accessDeniedPath);
if (!authResult)
{
return;
}
var e = entityKeys;
var QueryParams = RequestParams.RetriveQueryParam(context.Request.Query, _requestParams);
IEnumerable<TE> queryResult;
using (T dbcontext = CreateContext<T>(connString, dbType, customDbContextFactory))
{
queryResult = GetDBQueryResult<T, TE>(dbcontext, QueryParams);
}
if (interactingType == InteractingType.JSON)
{
byte[] jsonUtf8Bytes;
jsonUtf8Bytes = JsonSerializer.SerializeToUtf8Bytes(queryResult, jsonSerializerOptions);
await context.Response.WriteAsync(System.Text.Encoding.UTF8.GetString(jsonUtf8Bytes));
}
else if (interactingType == InteractingType.XML)
{
XmlRootAttribute a = new XmlRootAttribute("result");
// XmlSerializer does not support IEnumerable<T>
XmlSerializer serializer = new XmlSerializer(typeof(List<TE>),a);
StringWriter textWriter = new StringWriter();
serializer.Serialize(textWriter,queryResult.ToList());
await context.Response.WriteAsync(textWriter.ToString());
await textWriter.DisposeAsync();
}
};
}
private static RequestDelegate DeleteHandler<T, TE>(
Dictionary<string,List<AuthorizeAttribute>> restrictions,
DatabaseTypes dbType,
string connString,
InteractingType interactingType,
string authentificationPath,
string accessDeniedPath,
JsonSerializerOptions jsonSerializerOptions = null,
MethodInfo dbContextBeforeSaveChangesMethod = null,
Func<T> customDbContextFactory = null ) where T : DbContext, IDisposable
where TE : class
{
return async (context) =>
{
bool authResult = Authorization<TE>(context, HttpMethod.Delete, restrictions, false,authentificationPath,accessDeniedPath);
if (!authResult)
{
return;
}
TE recivedData;
List<TE> recivedDataList;
var mi = GetActionBeforeDelete<TE>();
string Reason ="";
using (T dbcontext = CreateContext<T>(connString, dbType, customDbContextFactory))
{
if (interactingType == InteractingType.JSON)
{
using (var reader = new StreamReader(context.Request.Body))
{
var body = await reader.ReadToEndAsync();
try
{
recivedData = JsonSerializer.Deserialize<TE>(body);
if (recivedData != null)
{
if (CheckAllowed<T, TE>(dbcontext, recivedData, mi, out Reason))
{
dbcontext.Set<TE>().Remove(recivedData);
DoBeforeContextSaveChanges<T>(dbContextBeforeSaveChangesMethod, dbcontext);
await dbcontext.SaveChangesAsync();
await context.Response.WriteAsync("Deleted");
}
else
{
await context.Response.WriteAsync(Reason);
}
}
}
catch
{
// It can be array
try
{
recivedDataList = JsonSerializer.Deserialize<List<TE>>(body);
if (recivedDataList != null)
{
if (CheckAllowedList<T, TE>(dbcontext, recivedDataList, mi, out Reason))
{
dbcontext.Set<TE>().RemoveRange(recivedDataList);
DoBeforeContextSaveChanges<T>(dbContextBeforeSaveChangesMethod, dbcontext);
await dbcontext.SaveChangesAsync();
await context.Response.WriteAsync("Deleted");
}
else
{
await context.Response.WriteAsync(Reason);
}
}
}
catch
{
}
}
}
}
else if (interactingType == InteractingType.XML)
{
using (var reader = new StreamReader(context.Request.Body))
{
var body = await reader.ReadToEndAsync();
Stream stream = GenerateStreamFromString(body);
XmlRootAttribute a = new XmlRootAttribute("result");
XmlSerializer serializer = new XmlSerializer(typeof(List<TE>),a);
var recivedDataL = (List<TE>)serializer.Deserialize(stream);
await stream.DisposeAsync();
if (recivedDataL != null && recivedDataL.Count > 0)
{
if (CheckAllowedList<T, TE>(dbcontext, recivedDataL, mi, out Reason))
{
dbcontext.Set<TE>().RemoveRange(recivedDataL);
DoBeforeContextSaveChanges<T>(dbContextBeforeSaveChangesMethod, dbcontext);
await dbcontext.SaveChangesAsync();
await context.Response.WriteAsync("Deleted");
}
else
{
await context.Response.WriteAsync(Reason);
}
}
// Do something
}
}
}
};
}
