public override void OnAuthorization(HttpActionContext actionContext)
{
var authHeader = actionContext.Request.Headers.Authorization;
if (authHeader != null)
{
var authenticationToken = actionContext.Request.Headers.Authorization.Parameter;
var decodedAuthenticationToken = Encoding.UTF8.GetString(Convert.FromBase64String(authenticationToken));
var usernamePasswordArray = decodedAuthenticationToken.Split(':');
var userName = usernamePasswordArray[0];
var password = usernamePasswordArray[1];
var isValid = CheckMethods.CheckIsUserExist(userName, password);
if (isValid)
{
var principal = new GenericPrincipal(new GenericIdentity(userName), null);
Thread.CurrentPrincipal = principal;
return;
}
}
HandleUnathorized(actionContext);
}
public ActionResult CreateUser(string name, string surname, string email, string password, string username,
int roleId)
{
var isAdmin = CheckMethods.IsCurrentUserAdmin(User.Identity.Name);
if (User.Identity.IsAuthenticated && isAdmin)
{
using (var db = new BlogDbContext())
{
var user = new User();
user.Name = name;
user.Surname = surname;
user.Email = email;
user.Username = username;
user.Password = GetMethods.GetHash(password);
user.RoleId = roleId;
db.Users.Add(user);
db.SaveChanges();
return(View("~/Views/Admin/AdminMain.cshtml"));
}
}
return(new HttpStatusCodeResult(HttpStatusCode.Forbidden));
}
/**<summary>Assigns a value (string + Expression()) into variables (dictionary). Outputs "Invalid Assignment!"
* if assignment is invalid and exits/returns the function</summary>
*
* <remarks>The assignment is invalid if fails to meet any one of the following criteria:
* <list type="bullet">
* <item><term>If the expression contains more than one "=" characters</term></item>
* <item><term>If the variables name contains no spaces and no numbers</term></item>
* <item><term>If the expression is valid, see <see cref="Expression.IsExpressionValid()"/></term></item>
* </list>
* </remarks>
*/
public static void Assign(string assignmentExpression)
{
#region CHECK_IF_THE_ASSIGNMENT_IS_CORRECT
var variableAndExpression = assignmentExpression.Split("=");
//the assignment expression can only have one equal
if (variableAndExpression.Length != 2)
{
AnsiConsole.MarkupLine("[red]Invalid Assignment![/]");
return;
}
var variable = variableAndExpression[0].Trim();
var expression = new Expression(variableAndExpression[1].Trim());
//checks if the variable's name is valid (no spaces, no numbers)
variable = new Regex(" +").Replace(variable, " ");
if (Regex.IsMatch(variable, "\\d+") || variable.Contains(" "))
{
AnsiConsole.MarkupLine("[red]Invalid Assignment![/]");
return;
}
//checks if the expression is valid
if (!expression.IsValid)
{
AnsiConsole.MarkupLine("[red]Invalid Assignment![/]");
return;
}
//checks if the variable is already defined as a constant
if (constants.ContainsKey(variable.Trim().ToLower()))
{
AnsiConsole.MarkupLine($"[red]\"{variable}\" is already defined as a constant![/]");
return;
}
//prevents the (re)assigning of a function. ex "sin = 20"
if (CheckMethods.IsAFunction(variable))
{
AnsiConsole.MarkupLine($"[red]You can't (re)assign a function![/]");
return;
}
#endregion
if (variable.Equals("ans"))
{
AnsiConsole.MarkupLine($"[red]You can't re-assign \"{variable}\", it stores the value of the previous " +
"expression.[/]");
return;
}
variables[variable] = expression;
AnsiConsole.MarkupLine("[blue]Assigned![/]");
}
public AdminController()
{
_rehberView = new RehberViewMethods();
_departman = new GenericCrudMethod <Departman>();
_personel = new GenericCrudMethod <Personel>();
_check = new CheckMethods();
_login = new LoginController();
_adminLogin = new GenericCrudMethod <Login>();
}
protected override bool AuthorizeCore(HttpContextBase httpContext)
{
var isAdmin = CheckMethods.IsCurrentUserAdmin(httpContext.User.Identity.Name);
if (httpContext.Request.IsAuthenticated && isAdmin)
{
return(true);
}
return(false);
}
public ActionResult UserDeleteComment(int postId, int commentId)
{
string username = User.Identity.Name;
var userId = GetMethods.GetUserId(username);
if (CheckMethods.IsUsersComment(userId, commentId))
{
DeleteComment(commentId);
return(RedirectToAction("ShowPost", "MainPage", new { postId = postId }));
}
return(RedirectToAction("AccessDenied", "Error"));
}
public ActionResult UserDeletePost(int postId)
{
using (BlogDbContext db = new BlogDbContext())
{
var username = User.Identity.Name;
if (CheckMethods.IsUsersPost(postId, username))
{
DeletePost(postId);
return(RedirectToAction("Profile", "Account"));
}
}
return(RedirectToAction("AccessDenied", "Error"));
}
public ActionResult UserUpdatePost(int postId, string title, string content)
{
using (BlogDbContext db = new BlogDbContext())
{
var username = User.Identity.Name;
if (CheckMethods.IsUsersPost(postId, username))
{
InsertMethods.UpdatePost(postId, title, content);
return(RedirectToAction("ShowPost", "MainPage", new { postId }));
}
}
return(RedirectToAction("AccessDenied", "Error"));
}
public ActionResult Register(RegisterModel model)
{
if (ModelState.IsValid)
{
var status = InsertMethods.RegisterNewUser(model);
if (status == (int)Registration.Success && CheckMethods.IsUserExists(model.Login))
{
FormsAuthentication.SetAuthCookie(model.Login, true);
return(RedirectToAction("Index", "Account"));
}
}
ViewBag.Error = "Already exists";
return(View("~/Views/Register/Registration.cshtml", model));
}
public ActionResult OpenUserUpdatePost(int postid)
{
using (BlogDbContext db = new BlogDbContext())
{
var username = User.Identity.Name;
if (CheckMethods.IsUsersPost(postid, username))
{
ViewData["Layout"] = GetMethods.GetLayout(User.Identity.Name);
var post = db.Posts.FirstOrDefault(p => p.PostId == postid);
return(View("~/Views/User/UserUpdatePost.cshtml", post));
}
return(RedirectToAction("AccessDenied", "Error"));
}
}
public ActionResult OpenUpdateUser(int userId)
{
using (var db = new BlogDbContext())
{
var isAdmin = CheckMethods.IsCurrentUserAdmin(User.Identity.Name);
if (User.Identity.IsAuthenticated && isAdmin)
{
var user = db.Users.FirstOrDefault(u => u.UserId == userId);
ViewBag.User = user;
return(View("~/Views/Admin/CreateUser.cshtml"));
}
}
return(new HttpStatusCodeResult(HttpStatusCode.Forbidden));
}
public ActionResult Login(LoginModel model, object returnurl)
{
if (ModelState.IsValid)
{
if (CheckMethods.Authenticate(model.Login, model.Password))
{
FormsAuthentication.SetAuthCookie(model.Login, true);
return(RedirectToAction("Index", "MainPage"));
}
else
{
ViewBag.Error = "Пользователя с таким логином и паролем не существует";
}
}
return(View("~/Views/Login/Login.cshtml", model));
}
/** <summary>Returns true/false depending on whether the expession is valid or not (Respectively)</summary>
*
* <remarks>The region "SPECIFIC_CASES" detect whether an expression is a lone variable or a lone number.
* <example>"someVariable" for a lone variable, and "-10" for a lone number</example>
* Furthermore, the function also checks the following:
* <list type="bullet">
* <item><term>If the last character of the expression is an operator</term></item>
* <item><term>If the all the values in the expression list are numbers separated by spaces</term></item>
* <item><term>If the parenthesis are in the right order and properly formatted</term></item>
* </list></remarks>
*/
// ReSharper disable once CognitiveComplexity
private bool IsExpressionValid()
{
#region SPECIFIC_CASES
//Lone number case
if (CheckMethods.IsANumber(InputExpression))
{
return(true);
}
//Lone variable case
if (CheckMethods.IsAVariable(InputExpression) && ExpressionList.Count == 1)
{
return(true);
}
#endregion
//checks if the last character is an operator
if (CheckMethods.IsAValidOperator(InputExpression[^ 1].ToString()) ||
public ActionResult UserUpdateComment(int postId, int commentId)
{
using (BlogDbContext db = new BlogDbContext())
{
string username = User.Identity.Name;
var userId = GetMethods.GetUserId(username);
if (!CheckMethods.IsUsersComment(userId, commentId))
{
return(RedirectToAction("AccessDenied", "Error"));
}
string commentToUpdate = db.Comments.Where(c => c.CommentId == commentId).Select(c => c.Content).FirstOrDefault();
ViewBag.CommentToUpdate = commentToUpdate;
var post = db.Posts.FirstOrDefault(p => p.PostId == postId);
var user = db.Users.FirstOrDefault(u => u.UserId == post.UserId);
var comments = db.Comments.Where(c => c.PostId == postId).ToList();
comments = GetMethods.GetInitializedUserList(comments);
ViewBag.User = user;
ViewBag.Comments = comments;
ViewData["Layout"] = GetMethods.GetLayout(User.Identity.Name);
return(View("~/Views/Main/ShowPost.cshtml", post));
}
}
public JsonResult PostRegisterUser(string username, string name, string surname, string password, string email)
{
InsertMethods.RegisterNewUser(username, name, surname, password, email);
if (CheckMethods.IsUserExists(username))
{
JsonResult res = new JsonResult()
{
Data = new { status = "succesful" }
};
return(res);
}
var err = new Error()
{
ErrorCode = HttpStatusCode.InternalServerError, Message = "Server error"
};
JsonConvert.SerializeObject(err);
return(new JsonResult()
{
Data = err
});
}
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
ComplexEvRunner evr1 = new ComplexEvRunner(new List <Event>()
{
new Event(1, 2), new Event(1, 3), new Event(1, 3), new Event("NamedDice", 1, 2)
});
CheckMethods cm = new CheckMethods(evr1.checkSMIN);
cm += new CheckMethods(evr1.checkFMIN);
evr1.setChecks(cm, new List <int> {
2, 1
});
evr1.Name = "Bollocks!";
SimpleEvRunner evr2 = new SimpleEvRunner(new Event(1, 5), 0, 2);
Application.Run(new ComplexEvForm(new ComplexEvRunner(new List <EventRunner>()
{
evr1, evr2
})));
}
public void init()
{
checkMethods = new CheckMethods();
}
/** <summary>If the expression is valid, the method solves the expression. Otherwise, it will return null
* if the method is called and the validity of the expression is false, it will return null </summary>
*
* <remarks>The method turns the expression (which is in infix notation) into its postfix expression using the
* <see cref="ExpressionManipulation.InfixToPostfix(string[])"/> function, then solves the expression using
* a postfix expression solving algorithm described
* <a href="https://runestone.academy/runestone/books/published/pythonds/BasicDS/InfixPrefixandPostfixExpressions.html">here</a>.
* </remarks>.
*/
// ReSharper disable once CognitiveComplexity
public double?Solve()
{
if (!IsValid)
{
AnsiConsole.MarkupLine("[red]Cannot solve expression as it is invalid![/]");
return(null);
}
//If the expression is a lone number, output it back
if (CheckMethods.IsANumber(InputExpression))
{
var value = double.Parse(InputExpression);
Variables.SetAns(value.ToString());
return(value);
}
//If the expression is a lone variable, output its value back
if (CheckMethods.IsAVariable(InputExpression) && ExpressionList.Count == 1)
{
var value = Variables.GetValue(InputExpression);
if (value is not null)
{
Variables.SetAns(value.ToString());
return(value);
}
AnsiConsole.MarkupLine($"[red]The variable \"{InputExpression}\" is not initialized![/]");
return(null);
}
//Creates a copy of the list int o a string array
var tempExpressionList = new string[ExpressionList.Count];
for (var i = 0; i < ExpressionList.Count; i++)
{
tempExpressionList[i] = ExpressionList[i];
}
//substitutes the values of the variables in the expression. At this point, ALL variables are defined (checked).
//A copy is used so the expression can mamintain its variables, so the value of a variable can change if the
//vaues in its variables (if it has any) change.
for (var i = 0; i < tempExpressionList.Length; i++)
{
if (CheckMethods.IsAFunction(tempExpressionList[i]))
{
continue;
}
if (!CheckMethods.IsAVariable(tempExpressionList[i]))
{
continue;
}
tempExpressionList[i] = Variables.GetValue(tempExpressionList[i]).ToString();
}
var postfixExpression = ExpressionManipulation.InfixToPostfix(tempExpressionList);
Stack <double> operandStack = new Stack <double>();
foreach (var token in postfixExpression)
{
if (CheckMethods.IsANumber(token))
{
operandStack.Push(double.Parse(token));
continue;
}
//if it is a trigonometric function, it only needs the top of the stack. So it pops, calculates, then
//pushes again.
if (CheckMethods.IsAFunction(token))
{
operandStack.Push(Computation.Compute(operandStack.Pop(), token));
continue;
}
//if its not a number, it is an operator
var number2 = operandStack.Pop();
var number1 = operandStack.Pop();
operandStack.Push(Computation.Compute(number1, number2, token));
}
if (operandStack.Count == 1)
{
var value = operandStack.Pop();
Variables.SetAns(value.ToString()); //sets the "ans" variable to this value
return(value);
}
AnsiConsole.MarkupLine("[red]Invalid Expression (at Solve)[/]");
return(null);
}
