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user.go
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user.go
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package main
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"time"
"golang.org/x/crypto/bcrypt"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
)
type User struct {
ID bson.ObjectId `bson:"_id" json:"-"`
Email string `bson:"email" json:"email"`
Password string `bson:"password,omitempty" json:"-"`
FirstName string `bson:"firstName,omitempty" json:"firstName,omitempty"`
LastName string `bson:"lastName,omitempty" json:"lastName,omitempty"`
Family string `bson:"family,omitempty" json:"family,omitempty"`
Organization string `bson:"organization,omitempty" json:"organization,omitempty"`
Team string `bson:"team,omitempty" json:"team,omitempty"`
Sharing string `bson:"sharing,omitempty" json:"sharing,omitempty"`
Comment string `bson:"comment,omitempty" json:"comment,omitempty"`
Referral string `bson:"referral,omitempty" json:"referral,omitempty"`
Donation string `bson:"donation,omitempty" json:"donation,omitempty"`
Picture string `bson:"picture,omitempty" json:"picture,omitempty"`
Facebook string `bson:"facebook,omitempty" json:"facebook,omitempty"`
Google string `bson:"google,omitempty" json:"google,omitempty"`
Role string `bson:"role,omitempty" json:"role,omitempty"`
Status string `bson:"status,omitempty" json:"status,omitempty"`
Participants []Participant `bson:"participants,omitempty" json:"participants,omitempty"`
ResetCode string `bson:"resetCode,omitempty" json:"-"`
Code string `bson:"code,omitempty" json:"-"`
CreatedOn time.Time `bson:"createdOn,omitempty" json:"createdOn,omitempty"`
LastLogin time.Time `bson:"lastLogin,omitempty" json:"lastLogin,omitempty"`
}
type LimitedUser struct {
ID bson.ObjectId `bson:"_id" json:"-"`
Email string `bson:"email" json:"email"`
FirstName string `bson:"firstName,omitempty" json:"firstName,omitempty"`
LastName string `bson:"lastName,omitempty" json:"lastName,omitempty"`
Family string `bson:"family,omitempty" json:"family,omitempty"`
Organization string `bson:"organization,omitempty" json:"organization,omitempty"`
Team string `bson:"team,omitempty" json:"team,omitempty"`
Comment string `bson:"comment,omitempty" json:"comment,omitempty"`
Referral string `bson:"referral,omitempty" json:"referral,omitempty"`
Role string `bson:"role,omitempty" json:"role,omitempty"`
Status string `bson:"status,omitempty" json:"status,omitempty"`
LastLogin time.Time `bson:"lastLogin,omitempty" json:"lastLogin,omitempty"`
}
type UserEditData struct {
Email string `bson:"email" json:"email"`
FirstName string `bson:"firstName,omitempty" json:"firstName,omitempty"`
LastName string `bson:"lastName,omitempty" json:"lastName,omitempty"`
Family string `bson:"family,omitempty" json:"family,omitempty"`
Organization string `bson:"organization,omitempty" json:"organization,omitempty"`
Team string `bson:"team,omitempty" json:"team,omitempty"`
Role string `bson:"role,omitempty" json:"role,omitempty"`
Status string `bson:"status,omitempty" json:"status,omitempty"`
}
func UpdateSelf(w http.ResponseWriter, r *http.Request) {
tokenData := GetToken(w, r)
if tokenData == nil {
return
}
db := GetDB(w, r)
user, errM := GetUserFromToken(db, tokenData)
if errM != nil {
HandleModelError(w, r, errM)
return
}
type UserUpdateData struct {
FirstName string `json:"firstName,omitempty"`
LastName string `json:"lastName,omitempty"`
Organization string `json:"organization,omitempty"`
}
decoder := json.NewDecoder(r.Body)
var userUpdateData UserUpdateData
err := decoder.Decode(&userUpdateData)
if err != nil {
BR(w, r, errors.New(PARSE_ERROR), http.StatusBadRequest)
return
}
if userUpdateData.FirstName != "" {
user.FirstName = userUpdateData.FirstName
}
if userUpdateData.LastName != "" {
user.LastName = userUpdateData.LastName
}
// Changing your organization resets your role to user.
if userUpdateData.Organization != "" {
user.Organization = userUpdateData.Organization
user.Role = USER.String()
}
errM = user.Save(db)
if errM != nil {
HandleModelError(w, r, errM)
return
}
ServeJSON(w, r, &Response{"status": "User profile updated successfully."}, http.StatusOK)
}
func GetUsers(w http.ResponseWriter, r *http.Request) {
if !IsAuthorized(w, r, "admin") {
return
}
tokenData := GetToken(w, r)
if tokenData == nil {
return
}
db := GetDB(w, r)
user, errM := GetUserFromToken(db, tokenData)
if errM != nil {
HandleModelError(w, r, errM)
return
}
users, errM := FindLimitedUsers(db, user)
if errM != nil {
HandleModelError(w, r, errM)
return
}
b, _ := json.Marshal(users)
ServeJSONArray(w, r, string(b), http.StatusOK)
}
func EditUser(w http.ResponseWriter, r *http.Request) {
if !IsAuthorized(w, r, "admin") {
return
}
tokenData := GetToken(w, r)
if tokenData == nil {
return
}
db := GetDB(w, r)
callingUser, errM := GetUserFromToken(db, tokenData)
if errM != nil {
HandleModelError(w, r, errM)
return
}
decoder := json.NewDecoder(r.Body)
var userEditData UserEditData
err := decoder.Decode(&userEditData)
if err != nil {
BR(w, r, errors.New(PARSE_ERROR), http.StatusBadRequest)
return
}
// Only global admins can change a user's role or status.
if callingUser.Role != GLOBAL_ADMIN.String() && callingUser.Role != GLOBAL_SUPER_ADMIN.String() {
userEditData.Role = ""
userEditData.Status = ""
}
errM = UpdateUser(db, &userEditData)
if errM != nil {
HandleModelError(w, r, errM)
return
}
ServeJSON(w, r, &Response{"status": "User successfully updated."}, http.StatusOK)
}
func (u *User) Save(db *mgo.Database) (errM *Error) {
ctx := logger.WithField("method", "User_Save")
uC := db.C("users")
_, err := uC.UpsertId(u.ID, bson.M{"$set": u})
if err != nil {
if mgo.IsDup(err) {
ctx.WithError(err).WithField("user", u.Email).Warn("Failed to create user. User already exists.")
errM = &Error{Internal: false, Reason: errors.New("That user already exists. Please login first."), Code: http.StatusConflict}
} else {
errM = &Error{Internal: true, Reason: errors.New(fmt.Sprintf("Error updating user: %s\n", err))}
}
return
}
return
}
func (u *User) Verify(db *mgo.Database) (errM *Error) {
uC := db.C("users")
u.Status = UNREGISTERED.String()
errM = u.Save(db)
if errM != nil {
return
}
update := bson.M{"$unset": bson.M{"code": ""}}
err := uC.UpdateId(u.ID, update)
if err != nil {
errM = &Error{Internal: true, Reason: errors.New(fmt.Sprintf("Failed to remove user's code: %s\n", err))}
return
}
return
}
func NewUser() (u *User) {
u = &User{}
u.ID = bson.NewObjectId()
return
}
func FindLimitedUsers(db *mgo.Database, u *User) (users []LimitedUser, errM *Error) {
c := db.C("users")
// If user is global admin, return all users. Otherwise just users in the user's org.
if u.Role == GLOBAL_ADMIN.String() || u.Role == GLOBAL_SUPER_ADMIN.String() {
err := c.Find(nil).All(&users)
if err != nil {
errM = &Error{Reason: errors.New(fmt.Sprintf("Error retrieving users from DB: %s", err)), Internal: true}
return
}
} else {
err := c.Find(bson.M{"organization": u.Organization}).All(&users)
if err != nil {
errM = &Error{Reason: errors.New(fmt.Sprintf("Error retrieving users from DB: %s", err)), Internal: true}
return
}
}
return
}
func CreateUser(db *mgo.Database, u *User) *Error {
ctx := logger.WithField("method", "CreateUser")
uC := db.C("users")
pwHash, err := bcrypt.GenerateFromPassword([]byte(u.Password), bcrypt.DefaultCost)
if err != nil {
return &Error{Reason: errors.New("Couldn't hash password."), Internal: true}
}
u.Password = string(pwHash)
u.ID = bson.NewObjectId()
u.CreatedOn = time.Now()
u.LastLogin = time.Now()
err = uC.Insert(u)
if mgo.IsDup(err) {
ctx.WithError(err).WithField("user", u.Email).Warn("Failed to create user. User already exists.")
return &Error{Reason: errors.New("User already exists. Please log in instead."), Internal: false, Code: 409}
}
return nil
}
func AuthUser(db *mgo.Database, email, password string) (*User, *Error) {
ctx := logger.WithField("method", "AuthUser")
uC := db.C("users")
user := &User{}
err := uC.Find(bson.M{"email": email}).One(user)
if err == mgo.ErrNotFound || user.ID == "" {
ctx.WithError(err).WithField("email", email).Warn("User autentication failed because user does not exist.")
return nil, &Error{Reason: errors.New("User wasn't found on our servers"), Internal: false}
} else if err != nil {
return nil, &Error{Reason: err, Internal: true}
}
err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
if err != nil {
ctx.WithError(err).WithField("email", email).Warn("User authentication failed due to bad password.")
return nil, &Error{Reason: errors.New("Incorrect password"), Internal: false, Code: http.StatusUnauthorized}
}
return user, nil
}
func FindUserByQuery(db *mgo.Database, query bson.M) (*User, *Error) {
ctx := logger.WithField("method", "FindUserByQuery").WithField("query", query)
uC := db.C("users")
user := &User{}
err := uC.Find(query).One(user)
if err == mgo.ErrNotFound || user.ID == "" {
ctx.WithError(err).Warn("User not found.")
return nil, &Error{Reason: errors.New("No user found."), Internal: false, Code: http.StatusNotFound}
} else if err != nil {
ctx.WithError(err).Error("Failed to query for user.")
return nil, &Error{Reason: err, Internal: true}
}
return user, nil
}
func FindUserById(db *mgo.Database, id bson.ObjectId) (*User, *Error) {
ctx := logger.WithField("method", "FindUserById").WithField("id", id)
uC := db.C("users")
user := &User{}
err := uC.FindId(id).One(user)
if err == mgo.ErrNotFound || user.ID == "" {
ctx.WithError(err).Warn("User not found.")
return nil, &Error{Reason: errors.New("User not found."), Internal: false, Code: http.StatusUnauthorized}
} else if err != nil {
ctx.WithError(err).Error("Failed to query for user by id.")
return nil, &Error{Reason: fmt.Errorf("mGo error: %s\n", err), Internal: true}
}
return user, nil
}
func FindUserByProvider(db *mgo.Database, provider, sub string) (*User, *Error) {
return FindUserByQuery(db, bson.M{provider: sub})
}
func FindUserByCode(db *mgo.Database, code string) (*User, *Error) {
return FindUserByQuery(db, bson.M{"code": code})
}
func FindUserByResetCode(db *mgo.Database, code string) (*User, *Error) {
return FindUserByQuery(db, bson.M{"resetCode": code})
}
func FindUserByEmail(db *mgo.Database, email string) (*User, *Error) {
return FindUserByQuery(db, bson.M{"email": email})
}
func ChangePassword(db *mgo.Database, u *User, password string) (errM *Error) {
c := db.C("users")
pwHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return &Error{Reason: errors.New("Couldn't hash password."), Internal: true}
}
u.Password = string(pwHash)
u.ResetCode = ""
errM = u.Save(db)
if errM != nil {
return errM
}
update := bson.M{"$unset": bson.M{"resetCode": ""}}
err = c.UpdateId(u.ID, update)
if err != nil {
errM = &Error{Internal: true, Reason: errors.New(fmt.Sprintf("Failed to remove user's reset code: %s\n", err))}
return
}
return
}
func UpdateUser(db *mgo.Database, u *UserEditData) *Error {
c := db.C("users")
err := c.Update(bson.M{"email": u.Email}, bson.M{"$set": u})
if err != nil {
return &Error{Reason: errors.New(fmt.Sprintf("Failed to update user: %s", err)), Internal: true}
}
return nil
}