Here is an article from 2004 with file access
https://www.codeproject.com/Articles/5724/Understanding-NET-Code-Access-Security
Fun part
Warning from Microsoft!: If asserts are not handled carefully it may lead into luring attacks where malicious code can call our code through trusted code.
I wish I found more article with details of what was removed and what was kept
Also as AppDomain disappeared in .NetCore well ...
File() to PhysicalFile(), but I still don't know what thevirtualPath mean!public IActionResult GetCourseForPic()
{
var fileName = Path.Combine(
hostingEnvironment.ContentRootPath,
"2019-12-06_23-13-54.jpg");
return PhysicalFile(fileName, "image/jpeg");
}
Let's say! we only want to load components that are already in the viewport. I think it would be better to load the website faster, even if it is possible to cache components into redis or something similar. Do any of you have the experience to do it.?
i am faced with some strange behavior in core2.2 EF
public class Something
{
public Guid Id { g;s; }
public virtual ICollection<SomethingElse> Things { g;s; }
}
public class SomethingElse
{
public Guid Id { g;s; }
public Guid SomethingId {g;s;}
public virtual Something Something {g;s;}
}and here is select statements
db.Set<Something>().Select(ext => new {
id = ext.Id,
things = ext.Things.Select(ext2 => new { id = ext2.Id })
}).ToList();this will work pretty well.
Entellisense says that ext.Things.Select is a Enumerable.Select(IEnumerable<TIn> query, Func<TIn, TOut> selector)
but if i will do it like this:
public class SomethingElseDto
{
public Guid Id {g;s;}
}
Func<SomethingElse, SomethingElseDto> selector = ext2 => new SomethingElseDto { id = ext2.Id }
db.Set<Something>().Select(ext => new {
id = ext.Id,
things = ext.Things.Select(selector)
}).ToList();i will get an exception:
Could not parse expression 'ext.Things.Select(__selector_1)': The given arguments did not match the expected arguments: Object of type 'System.Linq.Expressions.TypedParameterExpression' cannot be converted to type 'System.Linq.Expressions.LambdaExpression'.
Can someone shed light on this? what am i missing?
I am trying to create a HttpRequestMessage by copying data from HttpContext in a middleware:
var streamContent = new StreamContent(context.Request.Body);
requestMessage.Content = streamContent;
foreach (var header in context.Request.Headers)
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}and then I send the content using SendAsync
responseMessage = await _httpClient.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead, context.RequestAborted);which works. The issue is passing the context.User
How can I forward the User data to the target?
** Using Windows Authentication
ICollection<> implements IEnumerable<>Enumerable.Select expects Func<TSource, TDestination> or Func<TSource, int, TDestination>It seems that Linq does something with this, probably convert it to
IQueryable and does all the stuff.The things became complicated when you build expression tree by yourself and at this point those cases should be catched and resolved.
when you do it like in my example its not so difficult.