public static string GenerateJWTToken(string email, DateTime expiration, StudentHelperContext db)
{
User user = db.Users.First(x => x.Email == email);
var symmetric_Key = Convert.FromBase64String(SecretKey);
var token_Handler = new JwtSecurityTokenHandler();
var securitytokenDescriptor = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(new[]
{
new Claim(ClaimTypes.Email, email),
new Claim(ClaimTypes.Role, user.Role),
new Claim("UserId", user.Id.ToString())
}),
Expires = expiration,
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(symmetric_Key), SecurityAlgorithms.HmacSha256Signature)
};
var stoken = token_Handler.CreateToken(securitytokenDescriptor);
var token = token_Handler.WriteToken(stoken);
return(token);
}
private static void ChangeStats(int courseId, int userId, StudentHelperContext db, int votes)
{
Course course = db.Courses.Find(courseId);
Popularity popularity = course.PopularityStats.First(p => p.UserDetailsId == userId);
popularity.Votes = popularity.Votes + votes;
}
public static string SaveImage(byte[] data, HttpRequestMessage req, StudentHelperContext dbContext)
{
var image = new Image {
ImageData = data
};
dbContext.Images.Add(image);
dbContext.SaveChanges();
return(string.Format("http://{0}:{1}/api/image/{2}", req.RequestUri.Host, req.RequestUri.Port, image.Id));
}
public static void DeleteImage(int id, StudentHelperContext dbContext)
{
Image image = dbContext.Images.Find(id);
if (image != null)
{
dbContext.Images.Remove(image);
dbContext.SaveChanges();
}
}
public HttpResponseMessage GetImage(int id)
{
StudentHelperContext db = new StudentHelperContext();
Image image = db.Images.Find(id);
if (image != null)
{
MemoryStream ms = new MemoryStream(image.ImageData);
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StreamContent(ms)
};
response.Content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("image/jpg");
return(response);
}
var errorMessage = string.Format("Image with id = {0} doesn't exists", id);
return(new HttpResponseMessage(HttpStatusCode.NotFound)
{
Content = new StringContent(errorMessage)
});
}
public StudentExerciseRepository(StudentHelperContext context) : base(context)
{
}
public CourseRepository(StudentHelperContext context) : base(context)
{
}
public StudentAssignmentRepository(StudentHelperContext context) : base(context)
{
}
public TeacherRepository(StudentHelperContext context) : base(context)
{
}
public static void CommentDisliked(int courseId, int userId, StudentHelperContext db)
{
ChangeStats(courseId, userId, db, -1);
}
public static void PostLiked(int courseId, int userId, StudentHelperContext db)
{
ChangeStats(courseId, userId, db, 3);
}
public HelpRequestRepository(StudentHelperContext context)
{
Context = context;
}
