mirror of
https://github.com/tulir/mautrix-whatsapp
synced 2024-12-15 01:43:49 +01:00
565 lines
18 KiB
Go
565 lines
18 KiB
Go
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
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// Copyright (C) 2022 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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"fmt"
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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/mux"
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"github.com/gorilla/websocket"
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"go.mau.fi/whatsmeow/appstate"
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"go.mau.fi/whatsmeow/types"
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"go.mau.fi/whatsmeow"
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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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segment *Segment
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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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// Set up segment
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prov.segment = NewSegment(prov.bridge.Config.AppService.Provisioning.SegmentKey, prov.log)
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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("/v1/ping", prov.Ping).Methods(http.MethodGet)
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r.HandleFunc("/v1/login", prov.Login).Methods(http.MethodGet)
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r.HandleFunc("/v1/logout", prov.Logout).Methods(http.MethodPost)
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r.HandleFunc("/v1/delete_session", prov.DeleteSession).Methods(http.MethodPost)
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r.HandleFunc("/v1/disconnect", prov.Disconnect).Methods(http.MethodPost)
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r.HandleFunc("/v1/reconnect", prov.Reconnect).Methods(http.MethodPost)
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r.HandleFunc("/v1/sync/appstate/{name}", prov.SyncAppState).Methods(http.MethodPost)
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r.HandleFunc("/v1/contacts", prov.ListContacts).Methods(http.MethodGet)
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r.HandleFunc("/v1/groups", prov.ListGroups).Methods(http.MethodGet)
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r.HandleFunc("/v1/pm/{number}", prov.StartPM).Methods(http.MethodPost)
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r.HandleFunc("/v1/open/{groupID}", prov.OpenGroup).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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// Deprecated, just use /disconnect
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r.HandleFunc("/v1/delete_connection", prov.Disconnect).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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user.removeFromJIDMap(BridgeState{StateEvent: StateLoggedOut})
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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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user.sendBridgeState(BridgeState{StateEvent: StateBadCredentials, Error: WANotConnected})
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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()
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jsonResponse(w, http.StatusAccepted, Response{true, "Created connection to WhatsApp."})
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}
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} else {
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user.DeleteConnection()
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user.sendBridgeState(BridgeState{StateEvent: StateTransientDisconnect, Error: WANotConnected})
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user.Connect()
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jsonResponse(w, http.StatusAccepted, Response{true, "Restarted connection to WhatsApp"})
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}
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}
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func (prov *ProvisioningAPI) SyncAppState(w http.ResponseWriter, r *http.Request) {
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user := r.Context().Value("user").(*User)
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if user == nil || user.Client == nil {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: "User is not connected to WhatsApp",
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ErrCode: "no session",
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})
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return
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}
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vars := mux.Vars(r)
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nameStr := vars["name"]
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if len(nameStr) == 0 {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: "The `name` parameter is required",
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ErrCode: "missing-name-param",
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})
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return
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}
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var name appstate.WAPatchName
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for _, existingName := range appstate.AllPatchNames {
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if nameStr == string(existingName) {
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name = existingName
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}
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}
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if len(name) == 0 {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: fmt.Sprintf("'%s' is not a valid app state patch name", nameStr),
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ErrCode: "invalid-name-param",
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})
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return
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}
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fullStr := r.URL.Query().Get("full")
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fullSync := len(fullStr) > 0 && (fullStr == "1" || strings.ToLower(fullStr)[0] == 't')
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err := user.Client.FetchAppState(name, fullSync, false)
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if err != nil {
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jsonResponse(w, http.StatusInternalServerError, Error{false, err.Error(), "sync-fail"})
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} else {
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jsonResponse(w, http.StatusOK, Response{true, fmt.Sprintf("Synced app state %s", name)})
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}
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}
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func (prov *ProvisioningAPI) ListContacts(w http.ResponseWriter, r *http.Request) {
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if user := r.Context().Value("user").(*User); user.Session == nil {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: "User is not logged into WhatsApp",
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ErrCode: "no session",
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})
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} else if contacts, err := user.Session.Contacts.GetAllContacts(); err != nil {
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prov.log.Errorfln("Failed to fetch %s's contacts: %v", user.MXID, err)
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: "Internal server error while fetching contact list",
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ErrCode: "failed to get contacts",
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})
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} else {
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jsonResponse(w, http.StatusOK, contacts)
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}
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}
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func (prov *ProvisioningAPI) ListGroups(w http.ResponseWriter, r *http.Request) {
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if user := r.Context().Value("user").(*User); user.Session == nil {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: "User is not logged into WhatsApp",
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ErrCode: "no session",
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})
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} else if groups, err := user.getCachedGroupList(); err != nil {
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prov.log.Errorfln("Failed to fetch %s's groups: %v", user.MXID, err)
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: "Internal server error while fetching group list",
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ErrCode: "failed to get groups",
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})
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} else {
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jsonResponse(w, http.StatusOK, groups)
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}
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}
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type OtherUserInfo struct {
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MXID id.UserID `json:"mxid"`
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JID types.JID `json:"jid"`
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Name string `json:"displayname"`
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Avatar id.ContentURI `json:"avatar_url"`
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}
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type PortalInfo struct {
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RoomID id.RoomID `json:"room_id"`
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OtherUser *OtherUserInfo `json:"other_user,omitempty"`
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GroupInfo *types.GroupInfo `json:"group_info,omitempty"`
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JustCreated bool `json:"just_created"`
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}
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func (prov *ProvisioningAPI) StartPM(w http.ResponseWriter, r *http.Request) {
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number, _ := mux.Vars(r)["number"]
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if strings.HasSuffix(number, "@"+types.DefaultUserServer) {
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jid, _ := types.ParseJID(number)
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number = "+" + jid.User
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}
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if user := r.Context().Value("user").(*User); !user.IsLoggedIn() {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: "User is not logged into WhatsApp",
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ErrCode: "no session",
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})
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} else if resp, err := user.Client.IsOnWhatsApp([]string{number}); err != nil {
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: fmt.Sprintf("Failed to check if number is on WhatsApp: %v", err),
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ErrCode: "error checking number",
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})
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} else if len(resp) == 0 {
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: "Didn't get a response to checking if the number is on WhatsApp",
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ErrCode: "error checking number",
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})
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} else if !resp[0].IsIn {
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jsonResponse(w, http.StatusNotFound, Error{
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Error: fmt.Sprintf("The server said +%s is not on WhatsApp", resp[0].JID.User),
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ErrCode: "not on whatsapp",
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})
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} else if portal, puppet, justCreated, err := user.StartPM(resp[0].JID, "provisioning API PM"); err != nil {
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: fmt.Sprintf("Failed to create portal: %v", err),
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})
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} else {
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status := http.StatusOK
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if justCreated {
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status = http.StatusCreated
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}
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jsonResponse(w, status, PortalInfo{
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RoomID: portal.MXID,
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OtherUser: &OtherUserInfo{
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JID: puppet.JID,
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MXID: puppet.MXID,
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Name: puppet.Displayname,
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Avatar: puppet.AvatarURL,
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},
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JustCreated: justCreated,
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})
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}
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}
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func (prov *ProvisioningAPI) OpenGroup(w http.ResponseWriter, r *http.Request) {
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groupID, _ := mux.Vars(r)["groupID"]
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if user := r.Context().Value("user").(*User); !user.IsLoggedIn() {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: "User is not logged into WhatsApp",
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ErrCode: "no session",
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})
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} else if jid, err := types.ParseJID(groupID); err != nil || jid.Server != types.GroupServer || (!strings.ContainsRune(jid.User, '-') && len(jid.User) < 15) {
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jsonResponse(w, http.StatusBadRequest, Error{
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Error: "Invalid group ID",
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ErrCode: "invalid group id",
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})
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} else if info, err := user.Client.GetGroupInfo(jid); err != nil {
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// TODO return better responses for different errors (like ErrGroupNotFound and ErrNotInGroup)
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: fmt.Sprintf("Failed to get group info: %v", err),
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ErrCode: "error getting group info",
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})
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} else {
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prov.log.Debugln("Importing", jid, "for", user.MXID)
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portal := user.GetPortalByJID(info.JID)
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status := http.StatusOK
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if len(portal.MXID) == 0 {
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err = portal.CreateMatrixRoom(user, info, true, true)
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if err != nil {
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jsonResponse(w, http.StatusInternalServerError, Error{
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Error: fmt.Sprintf("Failed to create portal: %v", err),
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})
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return
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}
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status = http.StatusCreated
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}
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jsonResponse(w, status, PortalInfo{
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RoomID: portal.MXID,
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GroupInfo: info,
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JustCreated: status == http.StatusCreated,
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})
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}
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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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wa["phone"] = "+" + user.JID.User
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wa["device"] = user.JID.Device
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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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"relay_whitelisted": user.RelayWhitelisted,
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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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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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} else {
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user.Session = nil
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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(BridgeState{StateEvent: 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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userID := r.URL.Query().Get("user_id")
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user := prov.bridge.GetUserByMXID(id.UserID(userID))
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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 func() {
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err := c.Close()
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if err != nil {
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user.log.Debugln("Error closing websocket:", err)
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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())
|
|
c.SetCloseHandler(func(code int, text string) error {
|
|
user.log.Debugfln("Login websocket closed (%d), cancelling login", code)
|
|
cancel()
|
|
return nil
|
|
})
|
|
|
|
qrChan, err := user.Login(ctx)
|
|
if err != nil {
|
|
user.log.Errorln("Failed to log in from provisioning API:", err)
|
|
if errors.Is(err, ErrAlreadyLoggedIn) {
|
|
go user.Connect()
|
|
_ = c.WriteJSON(Error{
|
|
Error: "You're already logged into WhatsApp",
|
|
ErrCode: "already logged in",
|
|
})
|
|
} else {
|
|
_ = c.WriteJSON(Error{
|
|
Error: "Failed to connect to WhatsApp",
|
|
ErrCode: "connection error",
|
|
})
|
|
}
|
|
}
|
|
user.log.Debugln("Started login via provisioning API")
|
|
prov.segment.Track(user.MXID, "$login_start")
|
|
|
|
for {
|
|
select {
|
|
case evt := <-qrChan:
|
|
switch evt.Event {
|
|
case whatsmeow.QRChannelSuccess.Event:
|
|
jid := user.Client.Store.ID
|
|
user.log.Debugln("Successful login as", jid, "via provisioning API")
|
|
prov.segment.Track(user.MXID, "$login_success")
|
|
_ = c.WriteJSON(map[string]interface{}{
|
|
"success": true,
|
|
"jid": jid,
|
|
"phone": fmt.Sprintf("+%s", jid.User),
|
|
})
|
|
case whatsmeow.QRChannelTimeout.Event:
|
|
user.log.Debugln("Login via provisioning API timed out")
|
|
errCode := "login timed out"
|
|
prov.segment.Track(user.MXID, "$login_failure", map[string]interface{}{"error": errCode})
|
|
_ = c.WriteJSON(Error{
|
|
Error: "QR code scan timed out. Please try again.",
|
|
ErrCode: errCode,
|
|
})
|
|
case whatsmeow.QRChannelErrUnexpectedEvent.Event:
|
|
user.log.Debugln("Login via provisioning API failed due to unexpected event")
|
|
errCode := "unexpected event"
|
|
prov.segment.Track(user.MXID, "$login_failure", map[string]interface{}{"error": errCode})
|
|
_ = c.WriteJSON(Error{
|
|
Error: "Got unexpected event while waiting for QRs, perhaps you're already logged in?",
|
|
ErrCode: errCode,
|
|
})
|
|
case whatsmeow.QRChannelClientOutdated.Event:
|
|
user.log.Debugln("Login via provisioning API failed due to outdated client")
|
|
errCode := "bridge outdated"
|
|
prov.segment.Track(user.MXID, "$login_failure", map[string]interface{}{"error": errCode})
|
|
_ = c.WriteJSON(Error{
|
|
Error: "Got client outdated error while waiting for QRs. The bridge must be updated to continue.",
|
|
ErrCode: errCode,
|
|
})
|
|
case whatsmeow.QRChannelScannedWithoutMultidevice.Event:
|
|
errCode := "multidevice not enabled"
|
|
prov.segment.Track(user.MXID, "$login_failure", map[string]interface{}{"error": errCode})
|
|
_ = c.WriteJSON(Error{
|
|
Error: "Please enable the WhatsApp multidevice beta and scan the QR code again.",
|
|
ErrCode: errCode,
|
|
})
|
|
continue
|
|
case "error":
|
|
errCode := "fatal error"
|
|
prov.segment.Track(user.MXID, "$login_failure", map[string]interface{}{"error": errCode})
|
|
_ = c.WriteJSON(Error{
|
|
Error: "Fatal error while logging in",
|
|
ErrCode: errCode,
|
|
})
|
|
case "code":
|
|
prov.segment.Track(user.MXID, "$qrcode_retrieved")
|
|
_ = c.WriteJSON(map[string]interface{}{
|
|
"code": evt.Code,
|
|
"timeout": int(evt.Timeout.Seconds()),
|
|
})
|
|
continue
|
|
}
|
|
return
|
|
case <-ctx.Done():
|
|
return
|
|
}
|
|
}
|
|
}
|