192 lines
5.4 KiB
Go
192 lines
5.4 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/base64"
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"encoding/json"
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"errors"
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"io"
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"log"
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"net/http"
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"time"
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"github.com/julienschmidt/httprouter"
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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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var AuthFunc = checkAuth
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func init() {
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router.GET("/api/auth", apiAuthHandler(displayAuthToken))
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router.POST("/api/auth", ApiHandler(func(opts *config.Options, ps httprouter.Params, b io.Reader) Response {
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return AuthFunc(opts, ps, b)
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}))
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router.POST("/api/auth/logout", ApiHandler(logout))
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}
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type DisplayUser struct {
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Id int64 `json:"id"`
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Email string `json:"email"`
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RegistrationTime *time.Time `json:"registration_time,omitempty"`
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}
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func currentUser(u *happydns.User) *DisplayUser {
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return &DisplayUser{
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Id: u.Id,
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Email: u.Email,
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RegistrationTime: u.RegistrationTime,
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}
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}
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func displayAuthToken(_ *config.Options, req *RequestResources, _ io.Reader) Response {
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return APIResponse{
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response: currentUser(req.User),
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}
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}
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func completeAuth(opts *config.Options, email string, service string) Response {
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var usr *happydns.User
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var err error
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if !storage.MainStore.UserExists(email) {
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now := time.Now()
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usr = &happydns.User{
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Email: email,
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RegistrationTime: &now,
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}
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if err = storage.MainStore.CreateUser(usr); 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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} else if usr, err = storage.MainStore.GetUserByEmail(email); 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("New user logged as %q\n", usr.Email)
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var session *happydns.Session
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if session, err = happydns.NewSession(usr); 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.CreateSession(session); 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: currentUser(usr),
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cookies: []*http.Cookie{&http.Cookie{
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Name: "happydns_session",
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Value: base64.StdEncoding.EncodeToString(session.Id),
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Path: opts.BaseURL + "/",
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Expires: time.Now().Add(30 * 24 * time.Hour),
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Secure: opts.DevProxy == "",
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HttpOnly: true,
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SameSite: http.SameSiteStrictMode,
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}},
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}
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}
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func logout(opts *config.Options, _ httprouter.Params, body io.Reader) Response {
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return APIResponse{
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response: true,
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cookies: []*http.Cookie{&http.Cookie{
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Name: "happydns_session",
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Value: "",
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Path: opts.BaseURL + "/",
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Expires: time.Unix(0, 0),
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Secure: opts.DevProxy == "",
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HttpOnly: true,
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}},
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}
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}
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type loginForm struct {
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Email string
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Password string
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}
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func dummyAuth(opts *config.Options, _ httprouter.Params, body io.Reader) Response {
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var lf loginForm
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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 user, err := storage.MainStore.GetUserByEmail(lf.Email); 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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return completeAuth(opts, user.Email, "dummy")
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}
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}
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func checkAuth(opts *config.Options, _ httprouter.Params, body io.Reader) Response {
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var lf loginForm
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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 user, err := storage.MainStore.GetUserByEmail(lf.Email); err != nil {
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return APIErrorResponse{
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err: errors.New(`Invalid username or password.`),
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status: http.StatusUnauthorized,
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}
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} else if !user.CheckAuth(lf.Password) {
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return APIErrorResponse{
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err: errors.New(`Invalid username or password.`),
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status: http.StatusUnauthorized,
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}
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} else if user.EmailValidated == nil {
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return APIErrorResponse{
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err: errors.New(`Please validate your e-mail address before your first login.`),
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href: "/email-validation",
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status: http.StatusUnauthorized,
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}
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} else {
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return completeAuth(opts, user.Email, "local")
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}
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}
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