429 lines
12 KiB
Go
429 lines
12 KiB
Go
// Copyright or © or Copr. happyDNS (2020)
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//
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// contact@happydns.org
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//
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// This software is a computer program whose purpose is to provide a modern
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// interface to interact with DNS systems.
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//
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// This software is governed by the CeCILL license under French law and abiding
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// by the rules of distribution of free software. You can use, modify and/or
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// redistribute the software under the terms of the CeCILL license as
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// circulated by CEA, CNRS and INRIA at the following URL
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// "http://www.cecill.info".
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//
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// As a counterpart to the access to the source code and rights to copy, modify
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// and redistribute granted by the license, users are provided only with a
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// limited warranty and the software's author, the holder of the economic
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// rights, and the successive licensors have only limited liability.
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//
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// In this respect, the user's attention is drawn to the risks associated with
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// loading, using, modifying and/or developing or reproducing the software by
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// the user in light of its specific status of free software, that may mean
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// that it is complicated to manipulate, and that also therefore means that it
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// is reserved for developers and experienced professionals having in-depth
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// computer knowledge. Users are therefore encouraged to load and test the
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// software's suitability as regards their requirements in conditions enabling
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// the security of their systems and/or data to be ensured and, more generally,
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// to use and operate it in the same conditions as regards security.
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//
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// The fact that you are presently reading this means that you have had
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// knowledge of the CeCILL license and that you accept its terms.
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package api
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"log"
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"net/http"
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"strconv"
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"strings"
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"time"
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"github.com/julienschmidt/httprouter"
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"git.happydns.org/happydns/actions"
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"git.happydns.org/happydns/config"
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"git.happydns.org/happydns/model"
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"git.happydns.org/happydns/storage"
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)
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func init() {
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router.GET("/api/session", apiAuthHandler(getSession))
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router.DELETE("/api/session", apiAuthHandler(clearSession))
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router.POST("/api/users", ApiHandler(registerUser))
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router.PATCH("/api/users", ApiHandler(specialUserOperations))
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router.GET("/api/users/:uid", apiAuthHandler(sameUserHandler(getUser)))
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router.GET("/api/users/:uid/settings", apiAuthHandler(sameUserHandler(getUserSettings)))
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router.POST("/api/users/:uid/settings", apiAuthHandler(sameUserHandler(changeUserSettings)))
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router.POST("/api/users/:uid/delete", apiAuthHandler(sameUserHandler(deleteUser)))
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router.POST("/api/users/:uid/email", ApiHandler(userHandler(validateUserAddress)))
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router.POST("/api/users/:uid/new_password", apiAuthHandler(sameUserHandler(changePassword)))
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router.POST("/api/users/:uid/recovery", ApiHandler(userHandler(recoverUserAccount)))
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}
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type UploadedUser struct {
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Kind string
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Email string
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Password string
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Language string `json:"lang,omitempty"`
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Newsletter bool `json:"wantReceiveUpdate,omitempty"`
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}
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func registerUser(opts *config.Options, p httprouter.Params, body io.Reader) Response {
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var uu UploadedUser
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err := json.NewDecoder(body).Decode(&uu)
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if err != nil {
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return APIErrorResponse{
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err: fmt.Errorf("Something is wrong in received data: %w", err),
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}
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}
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if len(uu.Email) <= 3 || strings.Index(uu.Email, "@") == -1 {
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return APIErrorResponse{
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err: errors.New("The given email is invalid."),
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}
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}
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if len(uu.Password) <= 7 {
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return APIErrorResponse{
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err: errors.New("The given password is invalid."),
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}
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}
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if storage.MainStore.UserExists(uu.Email) {
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return APIErrorResponse{
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err: errors.New("An account already exists with the given address. Try login now."),
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}
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}
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if user, err := happydns.NewUser(uu.Email, uu.Password); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else {
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user.Settings = *happydns.DefaultUserSettings()
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user.Settings.Language = uu.Language
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user.Settings.Newsletter = uu.Newsletter
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if err := storage.MainStore.CreateUser(user); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else if actions.SendValidationLink(opts, user); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else {
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log.Printf("New user registerd: %s", user.Email)
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return APIResponse{
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response: user,
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}
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}
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}
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}
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func specialUserOperations(opts *config.Options, p httprouter.Params, body io.Reader) Response {
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var uu UploadedUser
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err := json.NewDecoder(body).Decode(&uu)
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if err != nil {
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return APIErrorResponse{
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err: fmt.Errorf("Something is wrong in received data: %w", err),
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}
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}
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res := APIErrorResponse{
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err: errors.New("If this address exists in our database, you'll receive a new e-mail."),
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status: http.StatusOK,
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}
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if user, err := storage.MainStore.GetUserByEmail(uu.Email); err != nil {
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res.cause = err
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return res
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} else {
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if uu.Kind == "recovery" {
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if user.EmailValidated == nil {
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if err = actions.SendValidationLink(opts, user); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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log.Printf("Sent validation link to: %s", user.Email)
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} else {
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if err = actions.SendRecoveryLink(opts, user); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else if err := storage.MainStore.UpdateUser(user); err != nil {
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return APIErrorResponse{
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err: fmt.Errorf("An error occurs when trying to recover your account: %w", err),
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}
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}
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log.Printf("Sent recovery link to: %s", user.Email)
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}
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} else if uu.Kind == "validation" {
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if user.EmailValidated != nil {
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return res
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} else if err = actions.SendValidationLink(opts, user); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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log.Printf("Sent validation link to: %s", user.Email)
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}
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}
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return res
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}
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func sameUserHandler(f func(*config.Options, *RequestResources, io.Reader) Response) func(*config.Options, *RequestResources, io.Reader) Response {
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return func(opts *config.Options, req *RequestResources, body io.Reader) Response {
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if uid, err := strconv.ParseInt(req.Ps.ByName("uid"), 16, 64); err != nil {
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return APIErrorResponse{
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status: http.StatusNotFound,
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err: fmt.Errorf("Invalid user identifier given: %w", err),
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}
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} else if uid != req.User.Id {
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return APIErrorResponse{
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status: http.StatusNotFound,
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err: errors.New("User not found"),
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}
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} else {
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return f(opts, req, body)
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}
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}
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}
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func getUser(opts *config.Options, req *RequestResources, _ io.Reader) Response {
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return APIResponse{
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response: req.User,
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}
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}
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func getUserSettings(opts *config.Options, req *RequestResources, _ io.Reader) Response {
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return APIResponse{
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response: req.User.Settings,
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}
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}
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func changeUserSettings(opts *config.Options, req *RequestResources, body io.Reader) Response {
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var us happydns.UserSettings
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if err := json.NewDecoder(body).Decode(&us); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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req.User.Settings = us
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if err := storage.MainStore.UpdateUser(req.User); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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return APIResponse{
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response: req.User.Settings,
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}
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}
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type passwordForm struct {
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Current string
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Password string
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PasswordConfirm string
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}
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func changePassword(opts *config.Options, req *RequestResources, body io.Reader) Response {
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var lf passwordForm
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if err := json.NewDecoder(body).Decode(&lf); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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if !req.User.CheckAuth(lf.Current) {
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return APIErrorResponse{
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err: errors.New(`Invalid password.`),
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status: http.StatusForbidden,
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}
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}
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if lf.Password != lf.PasswordConfirm {
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return APIErrorResponse{
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err: errors.New(`The new password and its confirmation are different.`),
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}
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}
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if err := req.User.DefinePassword(lf.Password); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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var sessions []*happydns.Session
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var err error
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if sessions, err = storage.MainStore.GetUserSessions(req.User); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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if err = storage.MainStore.UpdateUser(req.User); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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log.Printf("Change password for user %s", req.User.Email)
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for _, session := range sessions {
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storage.MainStore.DeleteSession(session)
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}
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return logout(opts, req.Ps, body)
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}
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func deleteUser(opts *config.Options, req *RequestResources, body io.Reader) Response {
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var lf passwordForm
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if err := json.NewDecoder(body).Decode(&lf); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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if !req.User.CheckAuth(lf.Password) {
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return APIErrorResponse{
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err: errors.New(`Invalid password.`),
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status: http.StatusForbidden,
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}
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}
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var sessions []*happydns.Session
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var err error
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if sessions, err = storage.MainStore.GetUserSessions(req.User); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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if err = storage.MainStore.DeleteUser(req.User); err != nil {
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return APIErrorResponse{
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err: err,
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}
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}
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log.Printf("User deleted: %s", req.User.Email)
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for _, session := range sessions {
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storage.MainStore.DeleteSession(session)
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}
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return logout(opts, req.Ps, body)
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}
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func userHandler(f func(*config.Options, *happydns.User, io.Reader) Response) func(*config.Options, httprouter.Params, io.Reader) Response {
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return func(opts *config.Options, ps httprouter.Params, body io.Reader) Response {
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if uid, err := strconv.ParseInt(ps.ByName("uid"), 16, 64); err != nil {
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return APIErrorResponse{
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status: http.StatusNotFound,
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err: fmt.Errorf("Invalid user identifier given: %w", err),
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}
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} else if user, err := storage.MainStore.GetUser(uid); err != nil {
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return APIErrorResponse{
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status: http.StatusNotFound,
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err: errors.New("User not found"),
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}
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} else {
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return f(opts, user, body)
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}
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}
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}
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type UploadedAddressValidation struct {
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Key string
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}
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func validateUserAddress(opts *config.Options, user *happydns.User, body io.Reader) Response {
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var uav UploadedAddressValidation
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err := json.NewDecoder(body).Decode(&uav)
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if err != nil {
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return APIErrorResponse{
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err: fmt.Errorf("Something is wrong in received data: %w", err),
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}
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}
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if err := user.ValidateEmail(uav.Key); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else if err := storage.MainStore.UpdateUser(user); err != nil {
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return APIErrorResponse{
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status: http.StatusNotFound,
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err: errors.New("User not found"),
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}
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} else {
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return APIResponse{
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response: true,
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}
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}
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}
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type UploadedAccountRecovery struct {
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Key string
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Password string
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}
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func recoverUserAccount(opts *config.Options, user *happydns.User, body io.Reader) Response {
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var uar UploadedAccountRecovery
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err := json.NewDecoder(body).Decode(&uar)
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if err != nil {
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return APIErrorResponse{
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err: fmt.Errorf("Something is wrong in received data: %w", err),
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}
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}
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if user.RegistrationTime == nil {
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now := time.Now()
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user.RegistrationTime = &now
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}
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if err := user.CanRecoverAccount(uar.Key); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else if len(uar.Password) == 0 {
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return APIResponse{
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response: false,
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}
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} else if err := user.DefinePassword(uar.Password); err != nil {
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return APIErrorResponse{
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err: err,
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}
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} else if err := storage.MainStore.UpdateUser(user); err != nil {
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return APIErrorResponse{
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status: http.StatusNotFound,
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err: errors.New("User not found"),
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}
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} else {
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log.Printf("User recovered: %s", user.Email)
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return APIResponse{
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response: true,
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}
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}
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}
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func getSession(opts *config.Options, req *RequestResources, body io.Reader) Response {
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return APIResponse{
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response: req.Session,
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}
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}
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func clearSession(opts *config.Options, req *RequestResources, body io.Reader) Response {
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req.Session.ClearSession()
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return APIResponse{
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response: true,
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}
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}
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