gosora/common/user_store.go

251 lines
7.3 KiB
Go

package common
import (
"database/sql"
"errors"
"log"
"strconv"
"../query_gen/lib"
"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")
type UserStore interface {
DirtyGet(id int) *User
Get(id int) (*User, error)
Exists(id int) bool
//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
GlobalCount() int
SetCache(cache UserCache)
GetCache() UserCache
}
type DefaultUserStore struct {
cache UserCache
get *sql.Stmt
exists *sql.Stmt
register *sql.Stmt
usernameExists *sql.Stmt
userCount *sql.Stmt
}
// NewDefaultUserStore gives you a new instance of DefaultUserStore
func NewDefaultUserStore(cache UserCache) (*DefaultUserStore, error) {
acc := qgen.Builder.Accumulator()
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, is_super_admin, session, email, avatar, message, url_prefix, url_name, level, score, last_ip, temp_group", "uid = ?", "", ""),
exists: acc.SimpleSelect("users", "uid", "uid = ?", "", ""),
register: acc.SimpleInsert("users", "name, email, password, salt, group, is_super_admin, session, active, message, createdAt, lastActiveAt", "?,?,?,?,?,0,'',?,'',UTC_TIMESTAMP(),UTC_TIMESTAMP()"), // TODO: Implement user_count on users_groups here
usernameExists: acc.SimpleSelect("users", "name", "name = ?", "", ""),
userCount: acc.SimpleCount("users", "", ""),
}, acc.FirstError()
}
func (mus *DefaultUserStore) DirtyGet(id int) *User {
user, err := mus.cache.Get(id)
if err == nil {
return user
}
user = &User{ID: id, Loggedin: true}
err = mus.get.QueryRow(id).Scan(&user.Name, &user.Group, &user.IsSuperAdmin, &user.Session, &user.Email, &user.Avatar, &user.Message, &user.URLPrefix, &user.URLName, &user.Level, &user.Score, &user.LastIP, &user.TempGroup)
user.Init()
if err == nil {
mus.cache.Set(user)
return user
}
return BlankUser()
}
// TODO: Log weird cache errors? Not just here but in every *Cache?
func (mus *DefaultUserStore) Get(id int) (*User, error) {
user, err := mus.cache.Get(id)
if err == nil {
return user, nil
}
user = &User{ID: id, Loggedin: true}
err = mus.get.QueryRow(id).Scan(&user.Name, &user.Group, &user.IsSuperAdmin, &user.Session, &user.Email, &user.Avatar, &user.Message, &user.URLPrefix, &user.URLName, &user.Level, &user.Score, &user.LastIP, &user.TempGroup)
user.Init()
if err == nil {
mus.cache.Set(user)
}
return user, 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 (mus *DefaultUserStore) BulkGetMap(ids []int) (list map[int]*User, err error) {
var idCount = len(ids)
list = make(map[int]*User)
if idCount == 0 {
return list, nil
}
var stillHere []int
sliceList := mus.cache.BulkGet(ids)
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
}
// TODO: Add a function for the qlist stuff
var qlist string
var uidList []interface{}
for _, id := range ids {
uidList = append(uidList, strconv.Itoa(id))
qlist += "?,"
}
qlist = qlist[0 : len(qlist)-1]
acc := qgen.Builder.Accumulator()
rows, err := acc.Select("users").Columns("uid, name, group, is_super_admin, session, email, avatar, message, url_prefix, url_name, level, score, last_ip, temp_group").Where("uid IN(" + qlist + ")").Query(uidList...)
if err != nil {
return list, err
}
for rows.Next() {
user := &User{Loggedin: true}
err := rows.Scan(&user.ID, &user.Name, &user.Group, &user.IsSuperAdmin, &user.Session, &user.Email, &user.Avatar, &user.Message, &user.URLPrefix, &user.URLName, &user.Level, &user.Score, &user.LastIP, &user.TempGroup)
if err != nil {
return list, err
}
user.Init()
mus.cache.Set(user)
list[user.ID] = user
}
// 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) + ","
}
}
// We probably don't need this, but it might be useful in case of bugs in BulkCascadeGetMap
if sidList == "" {
if Dev.DebugMode {
log.Print("This data is sampled later in the BulkCascadeGetMap function, so it might miss the cached IDs")
log.Print("idCount", idCount)
log.Print("ids", ids)
log.Print("list", list)
}
return list, errors.New("We weren't able to find a user, but we don't know which one")
}
sidList = sidList[0 : len(sidList)-1]
err = errors.New("Unable to find the users with the following IDs: " + sidList)
}
return list, err
}
func (mus *DefaultUserStore) BypassGet(id int) (*User, error) {
user := &User{ID: id, Loggedin: true}
err := mus.get.QueryRow(id).Scan(&user.Name, &user.Group, &user.IsSuperAdmin, &user.Session, &user.Email, &user.Avatar, &user.Message, &user.URLPrefix, &user.URLName, &user.Level, &user.Score, &user.LastIP, &user.TempGroup)
user.Init()
return user, err
}
func (mus *DefaultUserStore) Reload(id int) error {
user := &User{ID: id, Loggedin: true}
err := mus.get.QueryRow(id).Scan(&user.Name, &user.Group, &user.IsSuperAdmin, &user.Session, &user.Email, &user.Avatar, &user.Message, &user.URLPrefix, &user.URLName, &user.Level, &user.Score, &user.LastIP, &user.TempGroup)
if err != nil {
mus.cache.Remove(id)
return err
}
user.Init()
_ = mus.cache.Set(user)
return nil
}
func (mus *DefaultUserStore) Exists(id int) bool {
err := mus.exists.QueryRow(id).Scan(&id)
if err != nil && err != ErrNoRows {
LogError(err)
}
return err != ErrNoRows
}
// TODO: Change active to a bool?
func (mus *DefaultUserStore) Create(username string, password string, email string, group int, active bool) (int, error) {
// Is this username already taken..?
err := mus.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 := mus.register.Exec(username, email, string(hashedPassword), salt, group, active)
if err != nil {
return 0, err
}
lastID, err := res.LastInsertId()
return int(lastID), err
}
// GlobalCount returns the total number of users registered on the forums
func (mus *DefaultUserStore) GlobalCount() (ucount int) {
err := mus.userCount.QueryRow().Scan(&ucount)
if err != nil {
LogError(err)
}
return ucount
}
func (mus *DefaultUserStore) SetCache(cache UserCache) {
mus.cache = cache
}
// TODO: We're temporarily doing this so that you can do ucache != nil in getTopicUser. Refactor it.
func (mus *DefaultUserStore) GetCache() UserCache {
_, ok := mus.cache.(*NullUserCache)
if ok {
return nil
}
return mus.cache
}