private void RegisterResult(Result commandResult)
{
LoginOkResult login = commandResult as LoginOkResult;
if (login != null)
{
AddJoinedUser(login.AuthorizedUsername);
}
RegisterOkResult register = commandResult as RegisterOkResult;
if (register != null)
{
AddJoinedUser(register.FinalUsername);
}
}
public Result RegisterUser(User newUser)
{
// Enter the critical section in upgradeable mode.
userDatabaseLock.EnterUpgradeableReadLock();
try
{
userDatabase = XDocument.Load(userDatabasePath);
// Determine if the provided username has been already taken
var sameUserName = (from u in userDatabase.Descendants("User")
where u.Attribute("principal").Value.Equals(newUser.UserName)
select u);
// The username is already present. The user must choose another one.
if (sameUserName.Count() != 0)
{
Result error = new RegisterErrorResult();
error.Comment = "Sorry, this UserName is already present.";
return error;
}
else //Register the user
{
// Build the final username.
string darPoolingUsername = newUser.UserName + "@" + baseHTTPAddress + NodeName;
// Extract the next ID from the database
int nextAvailableID = Convert.ToInt32(
(from user in userDatabase.Descendants("User")
orderby Convert.ToInt32(user.Element("UserID").Value) descending
select user.Element("UserID").Value).FirstOrDefault()) + 1;
newUser.UserID = nextAvailableID;
// Create the XML entity that represent the User in the database.
XElement newXmlUser = new XElement("User",
new XElement("UserID", newUser.UserID),
new XElement("UserName", darPoolingUsername),
new XElement("Password", newUser.PasswordHash), // FIXME: should store hash, not password
new XElement("Name", newUser.Name),
new XElement("Sex", newUser.UserSex),
new XElement("BirthDate", newUser.BirthDate),
new XElement("Email", newUser.Email),
new XElement("Smoker", newUser.Smoker),
new XElement("SignupDate", newUser.SignupDate),
new XElement("Whereabouts", newUser.Whereabouts)
);
// Maintain the info about the provided username
newXmlUser.SetAttributeValue("principal", newUser.UserName);
//Register the user: upgrade to Write mode
userDatabaseLock.EnterWriteLock();
//Console.WriteLine("{0} thread obtains the write lock", Thread.CurrentThread.Name);
try
{
userDatabase.Element("Users").Add(newXmlUser);
userDatabase.Save(userDatabasePath);
}
finally
{
//Console.WriteLine("{0} thread releases the write lock", Thread.CurrentThread.Name);
userDatabaseLock.ExitWriteLock();
}
RegisterOkResult success = new RegisterOkResult();
success.Comment = "User successfully registered! Your username is : " + darPoolingUsername;
success.FinalUsername = darPoolingUsername;
return success;
} // End else
} // End try upgradable
finally
{
//Console.WriteLine("{0} thread releases the upgradeable lock", Thread.CurrentThread.Name);
userDatabaseLock.ExitUpgradeableReadLock();
}
}
public Result RegisterUser(User newUser)
{
// Enter the critical section in upgradeable mode.
userDatabaseLock.EnterUpgradeableReadLock();
try
{
userDatabase = XDocument.Load(userDatabasePath);
// Determine if the provided username has been already taken
var sameUserName = (from u in userDatabase.Descendants("User")
where u.Attribute("principal").Value.Equals(newUser.UserName)
select u);
// The username is already present. The user must choose another one.
if (sameUserName.Count() != 0)
{
Result error = new RegisterErrorResult();
error.Comment = "Sorry, this UserName is already present.";
return(error);
}
else //Register the user
{
// Build the final username.
string darPoolingUsername = newUser.UserName + "@" + baseHTTPAddress + NodeName;
// Extract the next ID from the database
int nextAvailableID = Convert.ToInt32(
(from user in userDatabase.Descendants("User")
orderby Convert.ToInt32(user.Element("UserID").Value) descending
select user.Element("UserID").Value).FirstOrDefault()) + 1;
newUser.UserID = nextAvailableID;
// Create the XML entity that represent the User in the database.
XElement newXmlUser = new XElement("User",
new XElement("UserID", newUser.UserID),
new XElement("UserName", darPoolingUsername),
new XElement("Password", newUser.PasswordHash), // FIXME: should store hash, not password
new XElement("Name", newUser.Name),
new XElement("Sex", newUser.UserSex),
new XElement("BirthDate", newUser.BirthDate),
new XElement("Email", newUser.Email),
new XElement("Smoker", newUser.Smoker),
new XElement("SignupDate", newUser.SignupDate),
new XElement("Whereabouts", newUser.Whereabouts)
);
// Maintain the info about the provided username
newXmlUser.SetAttributeValue("principal", newUser.UserName);
//Register the user: upgrade to Write mode
userDatabaseLock.EnterWriteLock();
//Console.WriteLine("{0} thread obtains the write lock", Thread.CurrentThread.Name);
try
{
userDatabase.Element("Users").Add(newXmlUser);
userDatabase.Save(userDatabasePath);
}
finally
{
//Console.WriteLine("{0} thread releases the write lock", Thread.CurrentThread.Name);
userDatabaseLock.ExitWriteLock();
}
RegisterOkResult success = new RegisterOkResult();
success.Comment = "User successfully registered! Your username is : " + darPoolingUsername;
success.FinalUsername = darPoolingUsername;
return(success);
} // End else
} // End try upgradable
finally
{
//Console.WriteLine("{0} thread releases the upgradeable lock", Thread.CurrentThread.Name);
userDatabaseLock.ExitUpgradeableReadLock();
}
}// End RegisterUser
