mirror of
https://github.com/tulir/mautrix-whatsapp
synced 2024-11-17 15:31:26 +01:00
405 lines
12 KiB
Go
405 lines
12 KiB
Go
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
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// Copyright (C) 2021 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package main
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import (
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"bufio"
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"context"
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"encoding/json"
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"errors"
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"net"
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"net/http"
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"strings"
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"time"
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"github.com/gorilla/websocket"
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log "maunium.net/go/maulogger/v2"
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"maunium.net/go/mautrix/id"
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)
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type ProvisioningAPI struct {
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bridge *Bridge
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log log.Logger
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}
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func (prov *ProvisioningAPI) Init() {
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prov.log = prov.bridge.Log.Sub("Provisioning")
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prov.log.Debugln("Enabling provisioning API at", prov.bridge.Config.AppService.Provisioning.Prefix)
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r := prov.bridge.AS.Router.PathPrefix(prov.bridge.Config.AppService.Provisioning.Prefix).Subrouter()
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r.Use(prov.AuthMiddleware)
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r.HandleFunc("/ping", prov.Ping).Methods(http.MethodGet)
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r.HandleFunc("/login", prov.Login).Methods(http.MethodGet)
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r.HandleFunc("/logout", prov.Logout).Methods(http.MethodPost)
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r.HandleFunc("/delete_session", prov.DeleteSession).Methods(http.MethodPost)
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r.HandleFunc("/delete_connection", prov.DeleteConnection).Methods(http.MethodPost)
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r.HandleFunc("/disconnect", prov.Disconnect).Methods(http.MethodPost)
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r.HandleFunc("/reconnect", prov.Reconnect).Methods(http.MethodPost)
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prov.bridge.AS.Router.HandleFunc("/_matrix/app/com.beeper.asmux/ping", prov.BridgeStatePing).Methods(http.MethodPost)
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prov.bridge.AS.Router.HandleFunc("/_matrix/app/com.beeper.bridge_state", prov.BridgeStatePing).Methods(http.MethodPost)
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}
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type responseWrap struct {
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http.ResponseWriter
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statusCode int
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}
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var _ http.Hijacker = (*responseWrap)(nil)
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func (rw *responseWrap) WriteHeader(statusCode int) {
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rw.ResponseWriter.WriteHeader(statusCode)
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rw.statusCode = statusCode
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}
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func (rw *responseWrap) Hijack() (net.Conn, *bufio.ReadWriter, error) {
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hijacker, ok := rw.ResponseWriter.(http.Hijacker)
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if !ok {
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return nil, nil, errors.New("response does not implement http.Hijacker")
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}
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return hijacker.Hijack()
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}
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func (prov *ProvisioningAPI) AuthMiddleware(h http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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auth := r.Header.Get("Authorization")
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if len(auth) == 0 && strings.HasSuffix(r.URL.Path, "/login") {
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authParts := strings.Split(r.Header.Get("Sec-WebSocket-Protocol"), ",")
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for _, part := range authParts {
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part = strings.TrimSpace(part)
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if strings.HasPrefix(part, "net.maunium.whatsapp.auth-") {
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auth = part[len("net.maunium.whatsapp.auth-"):]
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break
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}
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}
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} else if strings.HasPrefix(auth, "Bearer ") {
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auth = auth[len("Bearer "):]
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}
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if auth != prov.bridge.Config.AppService.Provisioning.SharedSecret {
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jsonResponse(w, http.StatusForbidden, map[string]interface{}{
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"error": "Invalid auth token",
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"errcode": "M_FORBIDDEN",
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})
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return
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}
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userID := r.URL.Query().Get("user_id")
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user := prov.bridge.GetUserByMXID(id.UserID(userID))
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start := time.Now()
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wWrap := &responseWrap{w, 200}
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h.ServeHTTP(wWrap, r.WithContext(context.WithValue(r.Context(), "user", user)))
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duration := time.Now().Sub(start).Seconds()
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prov.log.Infofln("%s %s from %s took %.2f seconds and returned status %d", r.Method, r.URL.Path, user.MXID, duration, wWrap.statusCode)
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})
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}
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type Error struct {
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Success bool `json:"success"`
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Error string `json:"error"`
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ErrCode string `json:"errcode"`
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}
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type Response struct {
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Success bool `json:"success"`
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Status string `json:"status"`
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}
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func (prov *ProvisioningAPI) DeleteSession(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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if user.Session == nil && user.Client == nil {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: "Nothing to purge: no session information stored and no active connection.",
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ErrCode: "no session",
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})
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return
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}
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user.DeleteConnection()
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user.DeleteSession()
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jsonResponse(w, http.StatusOK, Response{true, "Session information purged"})
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}
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func (prov *ProvisioningAPI) DeleteConnection(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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if user.Client == nil {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: "You don't have a WhatsApp connection.",
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ErrCode: "not connected",
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})
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return
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}
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user.DeleteConnection()
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jsonResponse(w, http.StatusOK, Response{true, "Disconnected from WhatsApp and connection deleted"})
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}
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func (prov *ProvisioningAPI) Disconnect(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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if user.Client == nil {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: "You don't have a WhatsApp connection.",
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ErrCode: "no connection",
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})
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return
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}
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user.DeleteConnection()
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jsonResponse(w, http.StatusOK, Response{true, "Disconnected from WhatsApp"})
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}
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func (prov *ProvisioningAPI) Reconnect(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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if user.Client == nil {
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if user.Session == nil {
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jsonResponse(w, http.StatusForbidden, Error{
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Error: "No existing connection and no session. Please log in first.",
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ErrCode: "no session",
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})
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} else {
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user.Connect(false)
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jsonResponse(w, http.StatusOK, Response{true, "Created connection to WhatsApp."})
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}
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return
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}
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// TODO reimplement
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//user.log.Debugln("Received /reconnect request, disconnecting")
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//wasConnected := true
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//err := user.Conn.Disconnect()
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//if err == whatsapp.ErrNotConnected {
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// wasConnected = false
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//} else if err != nil {
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// user.log.Warnln("Error while disconnecting:", err)
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//}
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//
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//user.log.Debugln("Restoring session for /reconnect")
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//err = user.Conn.Restore(true, r.Context())
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//user.log.Debugfln("Restore session for /reconnect responded with %v", err)
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//if err == whatsapp.ErrInvalidSession {
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// if user.Session != nil {
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// user.log.Debugln("Got invalid session error when reconnecting, but user has session. Retrying using RestoreWithSession()...")
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// user.Conn.SetSession(*user.Session)
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// err = user.Conn.Restore(true, r.Context())
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// } else {
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// jsonResponse(w, http.StatusForbidden, Error{
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// Error: "You're not logged in",
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// ErrCode: "not logged in",
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// })
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// return
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// }
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//}
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//if err == whatsapp.ErrLoginInProgress {
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// jsonResponse(w, http.StatusConflict, Error{
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// Error: "A login or reconnection is already in progress.",
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// ErrCode: "login in progress",
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// })
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// return
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//} else if err == whatsapp.ErrAlreadyLoggedIn {
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// jsonResponse(w, http.StatusConflict, Error{
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// Error: "You were already connected.",
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// ErrCode: err.Error(),
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// })
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// return
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//}
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//if err != nil {
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// user.log.Warnln("Error while reconnecting:", err)
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// jsonResponse(w, http.StatusInternalServerError, Error{
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// Error: fmt.Sprintf("Unknown error while reconnecting: %v", err),
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// ErrCode: err.Error(),
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// })
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// user.log.Debugln("Disconnecting due to failed session restore in reconnect command...")
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// err = user.Conn.Disconnect()
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// if err != nil {
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// user.log.Errorln("Failed to disconnect after failed session restore in reconnect command:", err)
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// }
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// return
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//}
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//user.ConnectionErrors = 0
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//user.PostLogin()
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//
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//var msg string
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//if wasConnected {
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// msg = "Reconnected successfully."
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//} else {
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// msg = "Connected successfully."
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//}
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//
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//jsonResponse(w, http.StatusOK, Response{true, msg})
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}
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func (prov *ProvisioningAPI) Ping(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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wa := map[string]interface{}{
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"has_session": user.Session != nil,
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"management_room": user.ManagementRoom,
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"conn": nil,
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}
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if user.JID.IsEmpty() {
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wa["jid"] = user.JID.String()
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}
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if user.Client != nil {
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wa["conn"] = map[string]interface{}{
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"is_connected": user.Client.IsConnected(),
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"is_logged_in": user.Client.IsLoggedIn,
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}
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}
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resp := map[string]interface{}{
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"mxid": user.MXID,
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"admin": user.Admin,
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"whitelisted": user.Whitelisted,
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"relaybot_whitelisted": user.RelaybotWhitelisted,
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"whatsapp": wa,
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}
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jsonResponse(w, http.StatusOK, resp)
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}
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func jsonResponse(w http.ResponseWriter, status int, response interface{}) {
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(status)
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_ = json.NewEncoder(w).Encode(response)
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}
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func (prov *ProvisioningAPI) Logout(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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if user.Session == nil {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: "You're not logged in",
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ErrCode: "not logged in",
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})
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return
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}
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force := strings.ToLower(r.URL.Query().Get("force")) != "false"
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if user.Client == nil {
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if !force {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: "You're not connected",
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ErrCode: "not connected",
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})
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}
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} else {
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// TODO reimplement
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//err := user.Client.Logout()
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//if err != nil {
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// user.log.Warnln("Error while logging out:", err)
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// if !force {
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// jsonResponse(w, http.StatusInternalServerError, Error{
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// Error: fmt.Sprintf("Unknown error while logging out: %v", err),
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// ErrCode: err.Error(),
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// })
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// return
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// }
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//}
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user.DeleteConnection()
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}
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user.bridge.Metrics.TrackConnectionState(user.JID, false)
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user.removeFromJIDMap(StateLoggedOut)
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user.DeleteSession()
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jsonResponse(w, http.StatusOK, Response{true, "Logged out successfully."})
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}
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var upgrader = websocket.Upgrader{
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CheckOrigin: func(r *http.Request) bool {
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return true
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},
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Subprotocols: []string{"net.maunium.whatsapp.login"},
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}
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func (prov *ProvisioningAPI) Login(w http.ResponseWriter, r *http.Request) {
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// TODO reimplement
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//userID := r.URL.Query().Get("user_id")
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//user := prov.bridge.GetUserByMXID(id.UserID(userID))
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//
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//c, err := upgrader.Upgrade(w, r, nil)
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//if err != nil {
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// prov.log.Errorln("Failed to upgrade connection to websocket:", err)
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// return
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//}
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//defer c.Close()
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//if !user.Connect(true) {
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// user.log.Debugln("Connect() returned false, assuming error was logged elsewhere and canceling login.")
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// _ = c.WriteJSON(Error{
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// Error: "Failed to connect to WhatsApp",
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// ErrCode: "connection error",
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// })
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// return
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//}
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//
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//qrChan := make(chan string, 3)
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//go func() {
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// for code := range qrChan {
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// if code == "stop" {
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// return
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// }
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// _ = c.WriteJSON(map[string]interface{}{
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// "code": code,
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// })
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// }
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//}()
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//
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//go func() {
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// // Read everything so SetCloseHandler() works
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// for {
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// _, _, err = c.ReadMessage()
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// if err != nil {
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// break
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// }
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// }
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//}()
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//ctx, cancel := context.WithCancel(context.Background())
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//c.SetCloseHandler(func(code int, text string) error {
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// user.log.Debugfln("Login websocket closed (%d), cancelling login", code)
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// cancel()
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// return nil
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//})
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//
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//user.log.Debugln("Starting login via provisioning API")
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//session, jid, err := user.Conn.Login(qrChan, ctx)
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//qrChan <- "stop"
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//if err != nil {
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// var msg string
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// if errors.Is(err, whatsapp.ErrAlreadyLoggedIn) {
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// msg = "You're already logged in"
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// } else if errors.Is(err, whatsapp.ErrLoginInProgress) {
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// msg = "You have a login in progress already."
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// } else if errors.Is(err, whatsapp.ErrLoginTimedOut) {
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// msg = "QR code scan timed out. Please try again."
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// } else if errors.Is(err, whatsapp.ErrInvalidWebsocket) {
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// msg = "WhatsApp connection error. Please try again."
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// // TODO might need to make sure it reconnects?
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// } else if errors.Is(err, whatsapp.ErrMultiDeviceNotSupported) {
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// msg = "WhatsApp multi-device is not currently supported. Please disable it and try again."
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// } else {
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// msg = fmt.Sprintf("Unknown error while logging in: %v", err)
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// }
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// user.log.Warnln("Failed to log in:", err)
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// _ = c.WriteJSON(Error{
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// Error: msg,
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// ErrCode: err.Error(),
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// })
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// return
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//}
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//user.log.Debugln("Successful login as", jid, "via provisioning API")
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//user.ConnectionErrors = 0
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//user.JID = strings.Replace(jid, whatsapp.OldUserSuffix, whatsapp.NewUserSuffix, 1)
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//user.addToJIDMap()
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//user.SetSession(&session)
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//_ = c.WriteJSON(map[string]interface{}{
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// "success": true,
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// "jid": user.JID,
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//})
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//user.PostLogin()
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}
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