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users.go
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users.go
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package models
//
// GangGo Application Server
// Copyright (C) 2017 Lukas Matt <lukas@zauberstuhl.de>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import (
"strings"
"gopkg.in/ganggo/gorm.v2"
"sort"
"errors"
"time"
"github.com/revel/revel"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"golang.org/x/crypto/bcrypt"
"git.feneas.org/ganggo/ganggo/app/helpers"
)
type User struct {
gorm.Model
// size should be max 191 with mysql innodb
// cause asumming we use utf8mb 4*191 = 764 < 767
Username string `gorm:"size:191"`
Email string `gorm:"size:191"`
SerializedPrivateKey string `gorm:"type:text" json:"-" xml:"-"`
Password string `gorm:"-" json:"-" xml:"-"`
EncryptedPassword string `json:"-" xml:"-"`
LastSeen time.Time
PersonID uint
Person Person `gorm:"ForeignKey:PersonID"`
Aspects []Aspect `gorm:"AssociationForeignKey:UserID"`
}
type UserStream struct {
ID uint `gorm:"primary_key"`
CreatedAt time.Time
UpdatedAt time.Time
UserID uint
Name string `gorm:"size:191"`
Tags string
People string
Expression string
User User `json:"-"`
}
type UserStreams []UserStream
func (user *User) BeforeCreate() error {
// generate priv/pub key
privKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return err
}
// private key
key := x509.MarshalPKCS1PrivateKey(privKey)
block := pem.Block{Type: "PRIVATE KEY", Bytes: key}
keyEncoded := pem.EncodeToMemory(&block)
// public key
pub, err := x509.MarshalPKIXPublicKey(&privKey.PublicKey)
if err != nil {
return err
}
pubBlock := pem.Block{Type: "PUBLIC KEY", Bytes: pub}
pubEncoded := pem.EncodeToMemory(&pubBlock)
guid, err := helpers.Uuid();if err != nil {
return err
}
passwordEncoded, err := bcrypt.GenerateFromPassword(
[]byte(user.Password), -1); if err != nil {
return err
}
revel.Config.SetSection("ganggo")
host, found := revel.Config.String("address")
if !found {
return errors.New("No server address configured")
}
// set priv/pub keys and encrypted password
user.SerializedPrivateKey = string(keyEncoded)
user.EncryptedPassword = string(passwordEncoded)
user.Person.Guid = guid
user.Person.Author = user.Username + "@" + host
user.Person.Profile.Author = user.Username + "@" + host
user.Person.SerializedPublicKey = string(pubEncoded)
return nil
}
func (user *User) AfterCreate(tx *gorm.DB) error {
return tx.Model(&user.Person).Update("user_id", user.ID).Error
}
func (user *User) AfterFind(db *gorm.DB) error {
if structLoaded(user.Person.CreatedAt) {
return nil
}
err := db.Model(user).Related(&user.Person).Error
if err != nil {
return err
}
return db.Model(user).Related(&user.Aspects).Error
}
func (user *User) FindByID(id uint) (err error) {
db, err := OpenDatabase()
if err != nil {
return err
}
defer db.Close()
return db.Find(user, id).Error
}
func (user *User) FindByUsername(name string) (err error) {
db, err := OpenDatabase()
if err != nil {
return err
}
defer db.Close()
return db.Where("username = ?", name).Find(user).Error
}
func (user *User) Count() (count int) {
db, err := OpenDatabase()
if err != nil {
revel.AppLog.Error(err.Error())
return
}
defer db.Close()
db.Table("users").Count(&count)
return
}
func (user *User) ActiveHalfyear() (count int) {
db, err := OpenDatabase()
if err != nil {
revel.AppLog.Error(err.Error())
return
}
defer db.Close()
halfYear := time.Now().AddDate(0, -6, 0)
db.Table("users").Where("last_seen >= ?", halfYear).Count(&count)
return
}
func (user *User) ActiveMonth() (count int) {
db, err := OpenDatabase()
if err != nil {
revel.AppLog.Error(err.Error())
return
}
defer db.Close()
month := time.Now().AddDate(0, -1, 0)
db.Table("users").Where("last_seen >= ?", month).Count(&count)
return
}
func (user *User) Notify(model Model) error {
// do not send notification for your own activity
if user.Person.ID == model.FetchPersonID() {
return nil
}
notify := Notification{
ShareableType: model.FetchType(),
ShareableGuid: model.FetchGuid(),
UserID: user.ID,
PersonID: model.FetchPersonID(),
Unread: true,
}
return notify.Create()
}
func (stream *UserStream) Create() error {
db, err := OpenDatabase()
if err != nil {
return err
}
return db.Create(stream).Error
}
func (stream *UserStream) FindByName(name string) error { BACKEND_ONLY()
db, err := OpenDatabase()
if err != nil {
return err
}
return db.Where("name = ?", name).Find(stream).Error
}
func (stream *UserStream) FetchPosts(posts *Posts, offset uint) error { BACKEND_ONLY()
tagNames := strings.Split(stream.Tags, ",")
people := strings.Split(stream.People, ",")
for _, name := range tagNames {
var tag Tag
err := tag.FindByName(name, stream.User, offset)
if err != nil {
if err == gorm.ErrRecordNotFound {
continue
}
return err
}
for _, tagging := range tag.ShareableTaggings {
*posts = append(*posts, tagging.Post)
}
}
for _, author := range people {
var person Person
err := person.FindByAuthor(author)
if err != nil {
if err == gorm.ErrRecordNotFound {
continue
}
return err
}
var authorPosts Posts
err = authorPosts.FindAllByUserAndPersonID(
stream.User, person.ID, offset)
if err != nil && err != gorm.ErrRecordNotFound {
return err
}
*posts = append(*posts, authorPosts...)
}
var expressionPosts Posts
err := expressionPosts.FindAllByUserAndText(
stream.User, stream.Expression, offset)
if err != nil && err != gorm.ErrRecordNotFound {
return err
}
*posts = append(*posts, expressionPosts...)
sort.Sort(*posts)
if uint(len(*posts)) > offset && offset > 0 {
*posts = (*posts)[:offset-1]
}
return nil
}
func (streams *UserStreams) FindByUser(user User) error {
db, err := OpenDatabase()
if err != nil {
return err
}
defer db.Close()
return db.Where("user_id = ?", user.ID).Find(streams).Error
}
func (stream *UserStream) Delete() error {
db, err := OpenDatabase()
if err != nil {
return err
}
defer db.Close()
if stream.ID == 0 || stream.UserID == 0 {
// NOTE ID being zero will delete ALL entries
return errors.New("Cannot delete user stream without ID and UserID")
}
return db.Delete(stream).Error
}
func (user *User) ActiveLastDay() bool {
oneDayAgo := time.Now().AddDate(0, 0, -1)
return user.LastSeen.After(oneDayAgo)
}
func (user *User) UpdateLastSeen() error {
db, err := OpenDatabase()
if err != nil {
return err
}
return db.Model(user).Update("last_seen", time.Now()).Error
}