private static bool SetSession(UserDataFetcher UDF)
{
/* Session. unix in file.
* we will hash it.
* send it to server.
* __________________
* check procedure:
* if hash matches -> proceed
* does not match -> invalid session
*/
if (!InputValidator.ValidateId(UDF.GetId()))
{
return(error.SetErrorAndReturnFalse(ErrorCode.USER_NOT_FOUND));
}
//-----timestamp
long unix = DataFetcher.GetServerTimeStamp();
UserDataPusher.PushSessionFileLoggedIn(unix);
string hashedUnix = timestampHasher.Hash(unix.ToString(), DataFetcher.GetDeviceIdentifier());
UserDataPusher.UpdateUserSession(UDF, unix, hashedUnix);
//System.Windows.Forms.MessageBox.Show($"hashedUnix: {hashedUnix} ({hashedUnix.Length})");
return(true);
/*
* if (UDF.GetCurrentUserTimeStamp().IsTimeStampOlderThan(7 * 24)) //^extension
* //user has not been logged in for a whole week
* return true;
* return true;
*/
}
private void ConfirmEditingUserProfileButton_Click(object sender, EventArgs e)
{
confirmEditingUserProfileButton.Visible = false;
userProfileInfoBox.ReadOnly = true;
UserDataPusher.UpdateUserProfileInfo(userProfileInfoBox.Text);
CurrentUser.profileInfo = userProfileInfoBox.Text;
}
private static bool SetIsLoggedIn(UserDataFetcher UDF, bool IKnowThatThisFunctionMustGoAfterSetCurrentUser = true)
{
if (!InputValidator.ValidateId(UDF.GetId()))
{
return(error.SetErrorAndReturnFalse(ErrorCode.USER_NOT_FOUND));
}
if (CurrentUser.isLoggedIn)
{
UserDataPusher.PushSessionFileIsLoggedOut(false);
return(true);
}
return(false);
}
private void UserProfileUpForTeachingCheckbox_CheckedChanged(object sender, EventArgs e)
{
if (userProfileUpForTeachingCheckbox.Checked)
{
UserDataPusher.UpdateIfUserUpForTeaching(1);
CurrentUser.upForTeaching = 1;
}
else
{
UserDataPusher.UpdateIfUserUpForTeaching(0);
CurrentUser.upForTeaching = 0;
}
}
public static bool Register(UserDataFetcher UDF, string username, string email, string password, string passwordRepeat)
{
error.no = ErrorCode.OK;
//valid username password
if (!InputValidator.ValidateUsername(username))
{
return(error.SetErrorAndReturnFalse(
InputValidator.error.no | ErrorCode.INVALID_USERNAME));
}
if (!InputValidator.ValidatePassword(password, passwordRepeat))
{
return(error.SetErrorAndReturnFalse(
InputValidator.error.no | ErrorCode.INVALID_PASSWORD)); //#trigger pass
}
//valid email
System.Net.Mail.MailAddress mail;
if (!InputValidator.ValidateEmail(email, out mail))
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_EMAIL));
}
//taken email username
if (!InputValidator.CheckEmailNotTaken(UDF, mail))
{
return(error.SetErrorAndReturnFalse(ErrorCode.EMAIL_TAKEN));
}
if (!InputValidator.CheckUsernameNotTaken(UDF, username))
{
return(error.SetErrorAndReturnFalse(ErrorCode.USERNAME_TAKEN));
}
//hash and retrieve used salt
string hashedPass = hasher.Hash(password, saveUsedSalt: true); //^named argument
string usedSalt = hasher.GetLastUsedSaltAndForgetIt();
//push user
UserDataPusher.PushNewUser(username, mail, hashedPass, usedSalt);
//was it successful?
if (InputValidator.CheckUsernameNotTaken(UDF, username))
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR));
}
return(true);
}
public bool Write(string commentToShow)
{
error.Clear();
//validate
//user
if (!CurrentUser.isLoggedIn)
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_SESSION));
}
if (!InputValidator.ValidateId(CurrentUser.id))
{
return(error.SetErrorAndReturnFalse(ErrorCode.USER_NOT_FOUND));
}
//good text
if (!InputValidator.ValidateForumProblemCommentText(commentToShow))
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_TEXT_FIELD | InputValidator.error.no));
}
//valid as comment
//first get timestamp
long unix = DataFetcher.GetServerTimeStamp();
Comment comment = new Comment(0, CurrentUser.id, forumPost.id, commentToShow, unix);
//push
if (!UserDataPusher.PushNewForumProblemComment(comment))
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR));
}
//retrieve id
this.lastComment = DataFetcher.GetCommentFromTemplate(comment); //changes only id
comments.Add(this.lastComment);
//this.LoadLast(this.commentsPanel);
if (SuccessfullyAddedCommentEvent != null)
{
SuccessfullyAddedCommentEvent.Invoke(this, new SuccessfullyAddedCommentEventArgs(commentToShow, unix)); //invokes event if it has subscribers
}
return(true);
}
public static bool NewProblem(String name, Subjects.Subject subject, String description, ForumContent FC)
{
error.no = ErrorCode.OK;
//user id
if (!InputValidator.ValidateId(CurrentUser.id))
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_SESSION | ErrorCode.USER_NOT_FOUND));
}
//problem name
if (!InputValidator.ValidateForumProblemName(name))
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_NAME | InputValidator.error.no));
}
//chosen dropdown item
if (subject == null)
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_CHOSEN_ITEM));
}
//problem description
if (!InputValidator.ValidateForumProblemDescription(description))
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_TEXT_FIELD | InputValidator.error.no));
}
//create forum post
ForumPost forumPost;
try
{
//#watch out. A forum post with ID 0 !
forumPost = new ForumPost(0, subject.id, name, description, CurrentUser.id);
}
catch (Exception)
{
return(error.SetErrorAndReturnFalse(ErrorCode.UNKNOWN));
}
FC.Add(forumPost);
//push ok
if (!UserDataPusher.PushNewForumProblem(forumPost))
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR));
}
return(true);
}
private void ConfirmAddInterestButton_Click(object sender, EventArgs e)
{
//if user doest already have choosen interest, add it
if (!CurrentUser.interests.Contains(chooseInterestComboBox.Text) && CurrentUser.isLoggedIn != null)
{
if (CurrentUser.isLoggedIn)
{
CurrentUser.interests.Add(chooseInterestComboBox.Text);
UserDataPusher.PushNewInterest(chooseInterestComboBox.Text);
//show interest in profile
Label interestsLabel = new Label();
interestsLabel.AutoSize = true;
interestsLabel.Text = chooseInterestComboBox.Text;
userInterestsFLP.Controls.Add(interestsLabel);
}
}
else
{
MessageBox.Show("You already have this interest!");
}
}
public static bool UpvoteProblem(ForumPost forumPost)
{
error.Clear();
if (CurrentUser.isLoggedIn == false)
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_SESSION));
}
bool upVoted = false; //so far
try
{
upVoted = UserDataPusher.UpvoteForumProblem(forumPost); //exception root
if (!upVoted)
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR | ErrorCode.UNKNOWN));
}
//upvoted
//previous votes number
int votes = DataFetcher.GetForumPostVotes(forumPost);
//set votes to previous+1
votes += 1;
if (!DataPusher.SetForumPostVotes(forumPost, votes))
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR));
}
return(true);
}
catch (MySql.Data.MySqlClient.MySqlException myEx)
{ //^exception handling
if (myEx.Number == (uint)MySql.Data.MySqlClient.MySqlErrorCode.DuplicateKeyEntry)
{
throw new exceptions.DoneBefore();
}
else
{
throw myEx;
}
}
}
public static string messageToOutterWorld = ""; //#delete me
public static bool LogIn(UserDataFetcher UDF, string username, string password)
{
string salt;
if (!InputValidator.ValidatePassword(password))
{
return(error.SetErrorAndReturnFalse(ErrorCode.WRONG_PASSWORD | InputValidator.error.no));
}
//is it username?
if (InputValidator.ValidateUsername(username))
{
//-yes. get salt
salt = UDF.GetSalt(username);
}
//was it too short?
else if (InputValidator.error.no != ErrorCode.TOO_SHORT)
{
//-yes. is it email?
System.Net.Mail.MailAddress email;
string Email = username;
if (InputValidator.ValidateEmail(Email, out email))
{
//--yes. get salt
salt = UDF.GetSalt(email);
}
//--no. return false but before set error
else
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_EMAIL | ErrorCode.INVALID_USERNAME));
}
}
//it was not username nor email. Let the input validator say what was the problem
else
{
return(error.SetErrorAndReturnFalse(InputValidator.error.no | ErrorCode.INVALID_USERNAME));
}
//we have a salt
//or maybe we should have it
if (salt == null)
{
return(error.SetErrorAndReturnFalse(ErrorCode.UNKNOWN));
}
if (salt.Length < 1)
{
return(error.SetErrorAndReturnFalse(ErrorCode.USER_NOT_FOUND));
}
//let us hash password
password = hasher.Hash(password, salt);
//and finally check it
if (InputValidator.CheckPasswordMatch(UDF, password))
{
error.no = ErrorCode.OK;
//set log in timestamp
UserDataPusher.PushSessionFileUser(username);
if (SetSession(UDF))
{
Auth.SetCurrentUser(username, UDF);
SetIsLoggedIn(UDF);
return(true);
}
return(false);
}
error.no = ErrorCode.WRONG_PASSWORD;
return(false);
}//logIn
public static bool SetLoggedOut()
{
//always true because we do not care if user whether user is valid or not
UserDataPusher.PushSessionFileIsLoggedOut(true);
return(true);
}