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functions.go
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functions.go
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package user
import (
"github.com/ungerik/go-mail"
"github.com/ungerik/go-start/errs"
"github.com/ungerik/go-start/mongo"
"github.com/ungerik/go-start/view"
"launchpad.net/mgo/bson"
"reflect"
)
var (
UserPtrType = reflect.TypeOf((*User)(nil))
UserType = UserPtrType.Elem()
)
func From(document interface{}) (user *User) {
v := reflect.ValueOf(document)
// Dereference pointers until we have a struct value
for v.Kind() == reflect.Ptr {
if v.IsNil() {
return nil
}
v = v.Elem()
}
if v.Kind() == reflect.Struct {
if v.Type() == UserType {
return v.Addr().Interface().(*User)
}
count := v.NumField()
for i := 0; i < count; i++ {
field := v.Field(i)
if field.Type() == UserType {
return field.Addr().Interface().(*User)
}
}
}
panic(errs.Format("user.From(): invalid document type %T", document))
}
func New(email, password string) (user *User, doc interface{}, err error) {
doc = Config.Collection.NewDocument()
user = From(doc)
err = user.AddEmail(email, "via signup")
if err != nil {
return nil, nil, err
}
user.Username.Set(user.Email[0].Address.Get())
user.Password.SetHashed(password)
return user, doc, nil
}
// Will use user.User.Username for search
// Sets the username also as first name
func EnsureExists(username, email, password string, admin bool) (doc interface{}, exists bool, err error) {
doc, exists, err = Config.Collection.Filter("Username", username).GetOrCreateOne()
if err != nil {
return nil, false, err
}
user := From(doc)
user.Username.Set(username)
user.Name.First.Set(username)
if user.PrimaryEmail() == "" {
err = user.AddEmail(email, "via gostart/user.EnsureExists()")
} else {
err = user.Email[0].Address.Set(email)
user.Email[0].Description.Set("via gostart/user.EnsureExists()")
}
if err != nil {
return nil, false, err
}
if user.Email[0].Confirmed.IsEmpty() {
user.Email[0].Confirmed.SetNowUTC()
}
user.Password.SetHashed(password)
user.Blocked.Set(false)
user.Admin.Set(admin)
err = user.Save()
if err != nil {
return nil, false, err
}
return doc, exists, nil
}
func FindByID(id string) (userDoc interface{}, found bool, err error) {
return Config.Collection.TryDocumentWithID(bson.ObjectIdHex(id))
}
func IsConfirmedUserID(id string) (confirmed bool, err error) {
userDoc, found, err := FindByID(id)
if !found {
return false, err
}
return From(userDoc).IdentityConfirmed(), nil
}
///////////////////////////////////////////////////////////////////////////////
// Email functions
func FindByEmail(addr string) (doc interface{}, found bool, err error) {
addr = email.NormalizeAddress(addr)
query := Config.Collection.Filter("Email.Address", addr)
return query.TryOne()
}
func ConfirmEmail(confirmationCode string) (userDoc interface{}, email string, confirmed bool, err error) {
query := Config.Collection.Filter("Email.ConfirmationCode", confirmationCode)
userDoc, found, err := query.TryOne()
if !found {
return nil, "", false, err
}
user := From(userDoc)
for i := range user.Email {
if user.Email[i].ConfirmationCode.Get() == confirmationCode {
user.Email[i].Confirmed.SetNowUTC()
email = user.Email[i].Address.Get()
}
}
errs.Assert(email != "", "ConfirmationCode has to be found")
err = user.Save()
if err != nil {
return nil, "", false, err
}
return userDoc, email, true, nil
}
///////////////////////////////////////////////////////////////////////////////
// Session functions
const ContextCacheKey = "github.com/ungerik/go-start/user.ContextCacheKey"
func Login(context *view.Context, userDoc interface{}) {
context.SetSessionID(userDoc.(mongo.Document).ObjectId().Hex())
//context.Cache(ContextCacheKey, userDoc)
context.User = userDoc
}
func Logout(context *view.Context) {
context.DeleteSessionID()
//context.DeleteCached(ContextCacheKey)
context.User = nil
}
func LoginEmailPassword(context *view.Context, email, password string) (emailPasswdMatch bool, err error) {
userDoc, found, err := FindByEmail(email)
if !found {
return false, err
}
if !From(userDoc).EmailPasswordMatch(email, password) {
return false, nil
}
Login(context, userDoc)
return true, nil
}
// Returns nil if there is no session user
func OfSession(context *view.Context) (userDoc interface{}) {
if context.User != nil {
return context.User
}
// if userDoc, ok := context.Cached(ContextCacheKey); ok {
// return userDoc
// }
id, ok := context.SessionID()
if !ok {
return nil
}
userDoc, _, _ = FindByID(id)
context.User = userDoc
return userDoc
}