package common import ( "database/sql" "errors" "strconv" "github.com/Azareal/Gosora/query_gen" "golang.org/x/crypto/bcrypt" ) // TODO: Add the watchdog goroutine // TODO: Add some sort of update method var Users UserStore var ErrAccountExists = errors.New("this username is already in use") var ErrLongUsername = errors.New("this username is too long") type UserStore interface { DirtyGet(id int) *User Get(id int) (*User, error) GetByName(name string) (*User, error) Exists(id int) bool GetOffset(offset int, perPage int) (users []*User, err error) //BulkGet(ids []int) ([]*User, error) BulkGetMap(ids []int) (map[int]*User, error) BypassGet(id int) (*User, error) Create(username string, password string, email string, group int, active bool) (int, error) Reload(id int) error Count() int SetCache(cache UserCache) GetCache() UserCache } type DefaultUserStore struct { cache UserCache get *sql.Stmt getByName *sql.Stmt getOffset *sql.Stmt exists *sql.Stmt register *sql.Stmt usernameExists *sql.Stmt count *sql.Stmt } // NewDefaultUserStore gives you a new instance of DefaultUserStore func NewDefaultUserStore(cache UserCache) (*DefaultUserStore, error) { acc := qgen.NewAcc() if cache == nil { cache = NewNullUserCache() } // TODO: Add an admin version of registerStmt with more flexibility? return &DefaultUserStore{ cache: cache, get: acc.SimpleSelect("users", "name, group, active, is_super_admin, session, email, avatar, message, url_prefix, url_name, level, score, posts, liked, last_ip, temp_group", "uid = ?", "", ""), getByName: acc.Select("users").Columns("uid, name, group, active, is_super_admin, session, email, avatar, message, url_prefix, url_name, level, score, posts, liked, last_ip, temp_group").Where("name = ?").Prepare(), getOffset: acc.Select("users").Columns("uid, name, group, active, is_super_admin, session, email, avatar, message, url_prefix, url_name, level, score, posts, liked, last_ip, temp_group").Orderby("uid ASC").Limit("?,?").Prepare(), exists: acc.SimpleSelect("users", "uid", "uid = ?", "", ""), register: acc.Insert("users").Columns("name, email, password, salt, group, is_super_admin, session, active, message, createdAt, lastActiveAt, lastLiked, oldestItemLikedCreatedAt").Fields("?,?,?,?,?,0,'',?,'',UTC_TIMESTAMP(),UTC_TIMESTAMP(),UTC_TIMESTAMP(),UTC_TIMESTAMP()").Prepare(), // TODO: Implement user_count on users_groups here usernameExists: acc.SimpleSelect("users", "name", "name = ?", "", ""), count: acc.Count("users").Prepare(), }, acc.FirstError() } func (s *DefaultUserStore) DirtyGet(id int) *User { user, err := s.Get(id) if err == nil { return user } /*if s.OutOfBounds(id) { return BlankUser() }*/ return BlankUser() } // TODO: Log weird cache errors? Not just here but in every *Cache? func (s *DefaultUserStore) Get(id int) (*User, error) { u, err := s.cache.Get(id) if err == nil { //log.Print("cached user") //log.Print(string(debug.Stack())) //log.Println("") return u, nil } //log.Print("uncached user") u = &User{ID: id, Loggedin: true} err = s.get.QueryRow(id).Scan(&u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.URLPrefix, &u.URLName, &u.Level, &u.Score, &u.Posts,&u.Liked, &u.LastIP, &u.TempGroup) if err == nil { u.Init() s.cache.Set(u) } return u, err } // TODO: Log weird cache errors? Not just here but in every *Cache? // ! This bypasses the cache, use frugally func (s *DefaultUserStore) GetByName(name string) (*User, error) { u := &User{Loggedin: true} err := s.getByName.QueryRow(name).Scan(&u.ID, &u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.URLPrefix, &u.URLName, &u.Level, &u.Score, &u.Posts,&u.Liked, &u.LastIP, &u.TempGroup) if err == nil { u.Init() s.cache.Set(u) } return u, err } // TODO: Optimise this, so we don't wind up hitting the database every-time for small gaps // TODO: Make this a little more consistent with DefaultGroupStore's GetRange method func (s *DefaultUserStore) GetOffset(offset int, perPage int) (users []*User, err error) { rows, err := s.getOffset.Query(offset, perPage) if err != nil { return users, err } defer rows.Close() for rows.Next() { u := &User{Loggedin: true} err := rows.Scan(&u.ID, &u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.URLPrefix, &u.URLName, &u.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup) if err != nil { return nil, err } u.Init() s.cache.Set(u) users = append(users, u) } return users, rows.Err() } // TODO: Optimise the query to avoid preparing it on the spot? Maybe, use knowledge of the most common IN() parameter counts? // TODO: ID of 0 should always error? func (s *DefaultUserStore) BulkGetMap(ids []int) (list map[int]*User, err error) { idCount := len(ids) list = make(map[int]*User) if idCount == 0 { return list, nil } var stillHere []int sliceList := s.cache.BulkGet(ids) if len(sliceList) > 0 { for i, sliceItem := range sliceList { if sliceItem != nil { list[sliceItem.ID] = sliceItem } else { stillHere = append(stillHere, ids[i]) } } ids = stillHere } // If every user is in the cache, then return immediately if len(ids) == 0 { return list, nil } else if len(ids) == 1 { user, err := s.Get(ids[0]) if err != nil { return list, err } list[user.ID] = user return list, nil } // TODO: Add a function for the q stuff var q string idList := make([]interface{},len(ids)) for i, id := range ids { idList[i] = strconv.Itoa(id) q += "?," } q = q[0 : len(q)-1] rows, err := qgen.NewAcc().Select("users").Columns("uid,name,group,active,is_super_admin,session,email,avatar,message,url_prefix,url_name,level,score,posts,liked,last_ip,temp_group").Where("uid IN(" + q + ")").Query(idList...) if err != nil { return list, err } defer rows.Close() for rows.Next() { u := &User{Loggedin: true} err := rows.Scan(&u.ID, &u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.URLPrefix, &u.URLName, &u.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup) if err != nil { return list, err } u.Init() s.cache.Set(u) list[u.ID] = u } err = rows.Err() if err != nil { return list, err } // Did we miss any users? if idCount > len(list) { var sidList string for _, id := range ids { _, ok := list[id] if !ok { sidList += strconv.Itoa(id) + "," } } if sidList != "" { sidList = sidList[0 : len(sidList)-1] err = errors.New("Unable to find users with the following IDs: " + sidList) } } return list, err } func (s *DefaultUserStore) BypassGet(id int) (*User, error) { u := &User{ID: id, Loggedin: true} err := s.get.QueryRow(id).Scan(&u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.URLPrefix, &u.URLName, &u.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup) if err == nil { u.Init() } return u, err } func (s *DefaultUserStore) Reload(id int) error { u, err := s.BypassGet(id) if err != nil { s.cache.Remove(id) return err } _ = s.cache.Set(u) TopicListThaw.Thaw() return nil } func (s *DefaultUserStore) Exists(id int) bool { err := s.exists.QueryRow(id).Scan(&id) if err != nil && err != ErrNoRows { LogError(err) } return err != ErrNoRows } // TODO: Change active to a bool? // TODO: Use unique keys for the usernames func (s *DefaultUserStore) Create(username string, password string, email string, group int, active bool) (int, error) { // TODO: Strip spaces? // ? This number might be a little screwy with Unicode, but it's the only consistent thing we have, as Unicode characters can be any number of bytes in theory? if len(username) > Config.MaxUsernameLength { return 0, ErrLongUsername } // Is this username already taken..? err := s.usernameExists.QueryRow(username).Scan(&username) if err != ErrNoRows { return 0, ErrAccountExists } salt, err := GenerateSafeString(SaltLength) if err != nil { return 0, err } hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password+salt), bcrypt.DefaultCost) if err != nil { return 0, err } res, err := s.register.Exec(username, email, string(hashedPassword), salt, group, active) if err != nil { return 0, err } lastID, err := res.LastInsertId() return int(lastID), err } // Count returns the total number of users registered on the forums func (s *DefaultUserStore) Count() (count int) { err := s.count.QueryRow().Scan(&count) if err != nil { LogError(err) } return count } func (s *DefaultUserStore) SetCache(cache UserCache) { s.cache = cache } // TODO: We're temporarily doing this so that you can do ucache != nil in getTopicUser. Refactor it. func (s *DefaultUserStore) GetCache() UserCache { _, ok := s.cache.(*NullUserCache) if ok { return nil } return s.cache }