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FLocal/Common/dataobjects/Account.cs

184 lines
5.4 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using FLocal.Core;
using FLocal.Core.DB;
using FLocal.Core.DB.conditions;
using FLocal.Common.actions;
namespace FLocal.Common.dataobjects {
public class Account : SqlObject<Account> {
public class TableSpec : ISqlObjectTableSpec {
public const string TABLE = "Accounts";
public const string FIELD_ID = "Id";
public const string FIELD_USERID = "UserId";
public const string FIELD_PASSWORDHASH = "Password";
public const string FIELD_NEEDSMIGRATION = "NeedsMigration";
public const string FIELD_NAME = "Name";
public static readonly TableSpec instance = new TableSpec();
public string name { get { return TABLE; } }
public string idName { get { return FIELD_ID; } }
public void refreshSqlObject(int id) { Refresh(id); }
}
protected override ISqlObjectTableSpec table { get { return TableSpec.instance; } }
private int _userId;
public int userId {
get {
this.LoadIfNotLoaded();
return this._userId;
}
}
public User user {
get {
return User.LoadById(this.userId);
}
}
private string _passwordHash;
private string passwordHash {
get {
this.LoadIfNotLoaded();
return this._passwordHash;
}
}
private bool _needsMigration;
public bool needsMigration {
get {
this.LoadIfNotLoaded();
return this._needsMigration;
}
}
protected override void doFromHash(Dictionary<string, string> data) {
this._userId = int.Parse(data[TableSpec.FIELD_USERID]);
this._passwordHash = data[TableSpec.FIELD_PASSWORDHASH];
this._needsMigration = Util.string2bool(data[TableSpec.FIELD_NEEDSMIGRATION]);
}
public XElement exportToXml(UserContext context) {
return new XElement("account",
new XElement("id", this.id),
this.user.exportToXmlForViewing(context)
);
}
private static Dictionary<string, int> name2id = new Dictionary<string, int>();
public static Account LoadByName(string _name) {
string name = _name.ToLower();
if(!name2id.ContainsKey(name)) {
lock(name2id) {
if(!name2id.ContainsKey(name)) {
List<string> ids = Config.instance.mainConnection.LoadIdsByConditions(
TableSpec.instance,
new ComparisonCondition(
TableSpec.instance.getColumnSpec(TableSpec.FIELD_NAME),
ComparisonType.EQUAL,
name
),
Diapasone.unlimited
);
if(ids.Count > 1) {
throw new CriticalException("not unique");
} else if(ids.Count == 1) {
name2id[name] = int.Parse(ids[0]);
} else {
throw new NotFoundInDBException();
}
}
}
}
return Account.LoadById(name2id[name]);
}
private static Dictionary<int, int> userid2id = new Dictionary<int, int>();
public static Account LoadByUser(User user) {
if(!userid2id.ContainsKey(user.id)) {
lock(userid2id) {
if(!userid2id.ContainsKey(user.id)) {
List<string> ids = Config.instance.mainConnection.LoadIdsByConditions(
TableSpec.instance,
new ComparisonCondition(
TableSpec.instance.getColumnSpec(TableSpec.FIELD_USERID),
ComparisonType.EQUAL,
user.id.ToString()
),
Diapasone.unlimited
);
if(ids.Count > 1) {
throw new CriticalException("not unique");
} else if(ids.Count == 1) {
userid2id[user.id] = int.Parse(ids[0]);
} else {
throw new NotFoundInDBException();
}
}
}
}
return Account.LoadById(userid2id[user.id]);
}
private string hashPassword(string password) {
return Util.md5(Util.md5(password) + " " + Util.md5(Config.instance.SaltMigration) + " " + Util.md5(this.id.ToString()));
}
public bool checkPassword(string password) {
return this.hashPassword(password) == this.passwordHash;
}
public void updatePassword(string newPassword) {
if(newPassword.Length < 5) throw new FLocalException("Password is too short");
ChangeSetUtil.ApplyChanges(new AbstractChange[] {
new UpdateChange(
TableSpec.instance,
new Dictionary<string, AbstractFieldValue>() {
{
TableSpec.FIELD_PASSWORDHASH,
new ScalarFieldValue(this.hashPassword(newPassword))
},
},
this.id
)
});
}
public void migrate(string newPassword) {
if(newPassword.Length < 5) throw new FLocalException("Password is too short");
ChangeSetUtil.ApplyChanges(new AbstractChange[] {
new UpdateChange(
TableSpec.instance,
new Dictionary<string, AbstractFieldValue>() {
{
TableSpec.FIELD_PASSWORDHASH,
new ScalarFieldValue(this.hashPassword(newPassword))
},
{
TableSpec.FIELD_NEEDSMIGRATION,
new ScalarFieldValue("0")
},
},
this.id
),
new UpdateChange(
User.TableSpec.instance,
new Dictionary<string, AbstractFieldValue> {
{ User.TableSpec.FIELD_SHOWPOSTSTOUSERS, new ScalarFieldValue(User.ENUM_SHOWPOSTSTOUSERS_ALL) },
},
this.user.id
)
});
}
public static Account tryAuthorize(string name, string password) {
Account account = LoadByName(name);
if(account.passwordHash != account.hashPassword(password)) throw new FLocalException("Wrong password (" + account.id + ":" + account.hashPassword(password) + ")");
return account;
}
}
}