/// <summary>
/// Adds the search terms and results to the session.
/// </summary>
/// <param name="session">The session the method works on</param>
/// <param name="cache">The cache to store the results in</param>
/// <param name="searchTerms">A string of search terms.</param>
/// <param name="searchResults">A dataTable of search results.</param>
public static void AddSearchTermsAndResults(this ISession session, IMemoryCache cache, string searchTerms, List <SearchResultRow> searchResults)
{
var resultsToCache = new SearchResultsWrapper()
{
SearchResults = searchResults, SearchTerms = searchTerms
};
var key = Guid.NewGuid().ToString();
// cache the results for 10 minutes.
cache.Set(key, resultsToCache, new TimeSpan(0, ApplicationAdapter.GetMaxNumberOfMinutesToCacheSearchResults(), 0));
// cache the key in the session so we can find back the actual results in the cache!
session.SetString(SessionKeys.SearchResultsKey, key);
}
private static async Task LogOutIfNeeded(HttpContext context)
{
if (context.User.Identity.IsAuthenticated)
{
string nickName = context.User.Identity.Name;
// if the user has to be logged out by force, do that now
if (ApplicationAdapter.UserHasToBeLoggedOutByForce(nickName))
{
await context.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
context.Session.Clear();
context.Response.Redirect(ApplicationAdapter.GetVirtualRoot());
ApplicationAdapter.RemoveUserFromListToBeLoggedOutByForce(nickName);
}
}
}
private static async Task RedirectToInitIfRequired(HttpContext context)
{
// check if there's an anonymous user in the database
var anonymous = await UserGuiHelper.GetUserAsync(0); // use hardcoded 0 id. This also makes sure a misconfigured db isn't used further.
if (anonymous == null)
{
// database is empty
context.Request.Path = ApplicationAdapter.GetVirtualRoot() + "Admin/Init";
}
else
{
if (anonymous.NickName != "Anonymous")
{
// Misconfigured.
context.Request.Path = ApplicationAdapter.GetVirtualRoot() + "Error/1337";
}
}
}
/// <summary>
/// Initializes the session with the initial static data for the user.
/// </summary>
/// <param name="session"></param>
/// <param name="context"></param>
public static async Task InitializeAsync(this ISession session, HttpContext context)
{
if (session.GetInt32(SessionKeys.SessionInitialized) == 1)
{
// already initialized
return;
}
bool useEntityBasedLastVisitDateTracking = false;
UserEntity user = null;
if (context.User.Identity.IsAuthenticated)
{
user = await UserGuiHelper.GetUserAsync(context.User.Identity.Name);
if (user == null)
{
user = await UserGuiHelper.GetUserAsync(0); // 0 is UserID of Anonymous Coward;
}
else
{
// if the lastvisited date is null in the user entity, we'll use the cookie approach first
useEntityBasedLastVisitDateTracking = user.LastVisitedDate.HasValue;
}
}
else
{
user = await UserGuiHelper.GetUserAsync(0); // 0 is UserID of Anonymous Coward
}
if (user == null || user.IsBanned)
{
// banned user, revert to AC
user = await UserGuiHelper.GetUserAsync(0);
useEntityBasedLastVisitDateTracking = false;
}
if (user == null || user.UserID <= 0)
{
await session.LoadAnonymousSessionDataAsync();
}
else
{
await session.LoadUserSessionDataAsync(user);
}
bool isLastVisitDateValid = false;
DateTime lastVisitDate = DateTime.Now;
string lastVisitDateCookieName = ApplicationAdapter.GetSiteName() + " LastVisitDate";
// the last visited date is either stored in a cookie or on the server. Older versions of this forum system used cookie based last visited date storage,
// newer versions use server side storage in the User entity. For non-logged in users, cookie based storage is still used.
if (useEntityBasedLastVisitDateTracking)
{
lastVisitDate = user.LastVisitedDate.Value;
isLastVisitDateValid = true;
}
else
{
// read last visit date from cookie collection sent
if (context.Request.Cookies[lastVisitDateCookieName] != null)
{
string lastVisitDateAsString = context.Request.Cookies[lastVisitDateCookieName];
// convert to datetime
lastVisitDate = new DateTime(
int.Parse(lastVisitDateAsString.Substring(4, 4)), // Year
int.Parse(lastVisitDateAsString.Substring(2, 2)), // Month
int.Parse(lastVisitDateAsString.Substring(0, 2)), // Day
int.Parse(lastVisitDateAsString.Substring(8, 2)), // Hour
int.Parse(lastVisitDateAsString.Substring(10, 2)), // Minute
0); // Seconds
isLastVisitDateValid = true;
}
else
{
lastVisitDate = DateTime.Now;
}
}
if (isLastVisitDateValid)
{
// store in session object
session.AddLastVisitDate(lastVisitDate);
}
// update date
if (useEntityBasedLastVisitDateTracking || (user != null && user.UserID != 0 && !user.LastVisitedDate.HasValue))
{
await UserManager.UpdateLastVisitDateForUserAsync(user.UserID);
}
// always write new cookie
// cookie path is set to '/', to avoid path name casing mismatches. The cookie has a unique name anyway.
context.Response.Cookies.Append(lastVisitDateCookieName, DateTime.Now.ToString("ddMMyyyyHHmm"),
new CookieOptions()
{
Expires = new DateTimeOffset(DateTime.Now.AddYears(1)),
Path = "/",
SameSite = SameSiteMode.Lax,
HttpOnly = true // no js accessibility
});
if (session.CheckIfNeedsAuditing(AuditActions.AuditLogin))
{
await SecurityManager.AuditLoginAsync(session.GetUserID());
}
// mark the session as initialized.
session.SetInt32(SessionKeys.SessionInitialized, 1);
}
/// <summary>
/// Gets the user preference DefaultNumberOfMessagesPerPage for the current user
/// </summary>
/// <param name="session">The session the method works on</param>
/// <returns>the default # of messages per page as set by this user.</returns>
public static int GetUserDefaultNumberOfMessagesPerPage(this ISession session)
{
int toReturn = session.GetInt32(SessionKeys.DefaultNumberOfMessagesPerPage) ?? 0;
return(toReturn <= 0 ? ApplicationAdapter.GetMaxAmountMessagesPerPage() : toReturn);
}