gosora/common/user_store.go
Azareal 0dede6a329 NoEmbeds privacy and config settings.
Phase out url_prefix and url_name.
Eliminate some boilerplate and allocations while we're at it.
Reduce the number of conditional statements in url validator loops.
Better parsing of Site.URL to handle user error better.

You will have to run the patcher / updater for this commit.
2019-12-08 13:40:56 +10:00

319 lines
9.3 KiB
Go

package common
import (
"database/sql"
"errors"
"strconv"
qgen "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, perPage int) ([]*User, error)
//BulkGet(ids []int) ([]*User, error)
BulkGetMap(ids []int) (map[int]*User, error)
BypassGet(id int) (*User, error)
Create(name 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
nameExists *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()
}
u := "users"
// TODO: Add an admin version of registerStmt with more flexibility?
return &DefaultUserStore{
cache: cache,
get: acc.Select(u).Columns("name, group, active, is_super_admin, session, email, avatar, message, level, score, posts, liked, last_ip, temp_group, enable_embeds").Where("uid = ?").Prepare(),
getByName: acc.Select(u).Columns("uid, name, group, active, is_super_admin, session, email, avatar, message, level, score, posts, liked, last_ip, temp_group, enable_embeds").Where("name = ?").Prepare(),
getOffset: acc.Select(u).Columns("uid, name, group, active, is_super_admin, session, email, avatar, message, level, score, posts, liked, last_ip, temp_group, enable_embeds").Orderby("uid ASC").Limit("?,?").Prepare(),
exists: acc.Exists(u, "uid").Prepare(),
register: acc.Insert(u).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
nameExists: acc.Exists(u, "name").Prepare(),
count: acc.Count(u).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}
var embeds int
err = s.get.QueryRow(id).Scan(&u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup, &embeds)
if err == nil {
if embeds != -1 {
u.ParseSettings = DefaultParseSettings.CopyPtr()
u.ParseSettings.NoEmbed = embeds == 0
}
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}
var embeds int
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.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup, &embeds)
if err == nil {
if embeds != -1 {
u.ParseSettings = DefaultParseSettings.CopyPtr()
u.ParseSettings.NoEmbed = embeds == 0
}
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()
var embeds int
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.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup, &embeds)
if err != nil {
return nil, err
}
if embeds != -1 {
u.ParseSettings = DefaultParseSettings.CopyPtr()
u.ParseSettings.NoEmbed = embeds == 0
}
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,level,score,posts,liked,last_ip,temp_group,enable_embeds").Where("uid IN(" + q + ")").Query(idList...)
if err != nil {
return list, err
}
defer rows.Close()
var embeds int
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.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup, &embeds)
if err != nil {
return list, err
}
if embeds != -1 {
u.ParseSettings = DefaultParseSettings.CopyPtr()
u.ParseSettings.NoEmbed = embeds == 0
}
u.Init()
s.cache.Set(u)
list[u.ID] = u
}
if err = rows.Err(); 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}
var embeds int
err := s.get.QueryRow(id).Scan(&u.Name, &u.Group, &u.Active, &u.IsSuperAdmin, &u.Session, &u.Email, &u.RawAvatar, &u.Message, &u.Level, &u.Score, &u.Posts, &u.Liked, &u.LastIP, &u.TempGroup, &embeds)
if err == nil {
if embeds != -1 {
u.ParseSettings = DefaultParseSettings.CopyPtr()
u.ParseSettings.NoEmbed = embeds == 0
}
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(name 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(name) > Config.MaxUsernameLength {
return 0, ErrLongUsername
}
// Is this name already taken..?
err := s.nameExists.QueryRow(name).Scan(&name)
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(name, 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
}