portal.go 67 KB

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  1. // mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
  2. // Copyright (C) 2020 Tulir Asokan
  3. //
  4. // This program is free software: you can redistribute it and/or modify
  5. // it under the terms of the GNU Affero General Public License as published by
  6. // the Free Software Foundation, either version 3 of the License, or
  7. // (at your option) any later version.
  8. //
  9. // This program is distributed in the hope that it will be useful,
  10. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. // GNU Affero General Public License for more details.
  13. //
  14. // You should have received a copy of the GNU Affero General Public License
  15. // along with this program. If not, see <https://www.gnu.org/licenses/>.
  16. package main
  17. import (
  18. "bytes"
  19. "encoding/gob"
  20. "encoding/hex"
  21. "errors"
  22. "fmt"
  23. "html"
  24. "image"
  25. "image/gif"
  26. "image/jpeg"
  27. "image/png"
  28. "io/ioutil"
  29. "math"
  30. "math/rand"
  31. "mime"
  32. "net/http"
  33. "os"
  34. "os/exec"
  35. "path/filepath"
  36. "reflect"
  37. "strings"
  38. "sync"
  39. "time"
  40. log "maunium.net/go/maulogger/v2"
  41. "maunium.net/go/mautrix/crypto/attachment"
  42. "github.com/Rhymen/go-whatsapp"
  43. waProto "github.com/Rhymen/go-whatsapp/binary/proto"
  44. "maunium.net/go/mautrix"
  45. "maunium.net/go/mautrix/appservice"
  46. "maunium.net/go/mautrix/event"
  47. "maunium.net/go/mautrix/format"
  48. "maunium.net/go/mautrix/id"
  49. "maunium.net/go/mautrix/pushrules"
  50. "maunium.net/go/mautrix-whatsapp/database"
  51. "maunium.net/go/mautrix-whatsapp/types"
  52. "maunium.net/go/mautrix-whatsapp/whatsapp-ext"
  53. )
  54. func (bridge *Bridge) GetPortalByMXID(mxid id.RoomID) *Portal {
  55. bridge.portalsLock.Lock()
  56. defer bridge.portalsLock.Unlock()
  57. portal, ok := bridge.portalsByMXID[mxid]
  58. if !ok {
  59. return bridge.loadDBPortal(bridge.DB.Portal.GetByMXID(mxid), nil)
  60. }
  61. return portal
  62. }
  63. func (bridge *Bridge) GetPortalByJID(key database.PortalKey) *Portal {
  64. bridge.portalsLock.Lock()
  65. defer bridge.portalsLock.Unlock()
  66. portal, ok := bridge.portalsByJID[key]
  67. if !ok {
  68. return bridge.loadDBPortal(bridge.DB.Portal.GetByJID(key), &key)
  69. }
  70. return portal
  71. }
  72. func (bridge *Bridge) GetAllPortals() []*Portal {
  73. return bridge.dbPortalsToPortals(bridge.DB.Portal.GetAll())
  74. }
  75. func (bridge *Bridge) GetAllPortalsByJID(jid types.WhatsAppID) []*Portal {
  76. return bridge.dbPortalsToPortals(bridge.DB.Portal.GetAllByJID(jid))
  77. }
  78. func (bridge *Bridge) dbPortalsToPortals(dbPortals []*database.Portal) []*Portal {
  79. bridge.portalsLock.Lock()
  80. defer bridge.portalsLock.Unlock()
  81. output := make([]*Portal, len(dbPortals))
  82. for index, dbPortal := range dbPortals {
  83. if dbPortal == nil {
  84. continue
  85. }
  86. portal, ok := bridge.portalsByJID[dbPortal.Key]
  87. if !ok {
  88. portal = bridge.loadDBPortal(dbPortal, nil)
  89. }
  90. output[index] = portal
  91. }
  92. return output
  93. }
  94. func (bridge *Bridge) loadDBPortal(dbPortal *database.Portal, key *database.PortalKey) *Portal {
  95. if dbPortal == nil {
  96. if key == nil {
  97. return nil
  98. }
  99. dbPortal = bridge.DB.Portal.New()
  100. dbPortal.Key = *key
  101. dbPortal.Insert()
  102. }
  103. portal := bridge.NewPortal(dbPortal)
  104. bridge.portalsByJID[portal.Key] = portal
  105. if len(portal.MXID) > 0 {
  106. bridge.portalsByMXID[portal.MXID] = portal
  107. }
  108. return portal
  109. }
  110. func (portal *Portal) GetUsers() []*User {
  111. return nil
  112. }
  113. func (bridge *Bridge) NewManualPortal(key database.PortalKey) *Portal {
  114. portal := &Portal{
  115. Portal: bridge.DB.Portal.New(),
  116. bridge: bridge,
  117. log: bridge.Log.Sub(fmt.Sprintf("Portal/%s", key)),
  118. recentlyHandled: [recentlyHandledLength]types.WhatsAppMessageID{},
  119. messages: make(chan PortalMessage, bridge.Config.Bridge.PortalMessageBuffer),
  120. backfillStart: make(chan struct{}, 1),
  121. }
  122. portal.Key = key
  123. go portal.handleMessageLoop()
  124. return portal
  125. }
  126. func (bridge *Bridge) NewPortal(dbPortal *database.Portal) *Portal {
  127. portal := &Portal{
  128. Portal: dbPortal,
  129. bridge: bridge,
  130. log: bridge.Log.Sub(fmt.Sprintf("Portal/%s", dbPortal.Key)),
  131. recentlyHandled: [recentlyHandledLength]types.WhatsAppMessageID{},
  132. messages: make(chan PortalMessage, bridge.Config.Bridge.PortalMessageBuffer),
  133. backfillStart: make(chan struct{}, 1),
  134. }
  135. go portal.handleMessageLoop()
  136. return portal
  137. }
  138. const recentlyHandledLength = 100
  139. type PortalMessage struct {
  140. chat string
  141. source *User
  142. data interface{}
  143. timestamp uint64
  144. }
  145. type Portal struct {
  146. *database.Portal
  147. bridge *Bridge
  148. log log.Logger
  149. roomCreateLock sync.Mutex
  150. recentlyHandled [recentlyHandledLength]types.WhatsAppMessageID
  151. recentlyHandledLock sync.Mutex
  152. recentlyHandledIndex uint8
  153. backfillStart chan struct{}
  154. backfillWait sync.WaitGroup
  155. backfilling bool
  156. lastMessageTs uint64
  157. privateChatBackfillInvitePuppet func()
  158. messages chan PortalMessage
  159. isPrivate *bool
  160. hasRelaybot *bool
  161. }
  162. const MaxMessageAgeToCreatePortal = 5 * 60 // 5 minutes
  163. func (portal *Portal) handleMessageLoop() {
  164. for {
  165. select {
  166. case msg := <-portal.messages:
  167. portal.handleNewMessage(msg)
  168. case <-portal.backfillStart:
  169. portal.log.Debugln("Processing of incoming messages is locked for backfilling")
  170. portal.backfillWait.Wait()
  171. portal.log.Debugln("Processing of incoming messages unlocked after backfilling")
  172. }
  173. }
  174. }
  175. func (portal *Portal) handleNewMessage(msg PortalMessage) {
  176. if len(portal.MXID) == 0 {
  177. if msg.timestamp+MaxMessageAgeToCreatePortal < uint64(time.Now().Unix()) {
  178. portal.log.Debugln("Not creating portal room for incoming message as the message is too old.")
  179. return
  180. }
  181. portal.log.Debugln("Creating Matrix room from incoming message")
  182. err := portal.CreateMatrixRoom(msg.source)
  183. if err != nil {
  184. portal.log.Errorln("Failed to create portal room:", err)
  185. return
  186. }
  187. }
  188. portal.handleMessage(msg)
  189. }
  190. func (portal *Portal) handleMessage(msg PortalMessage) {
  191. if len(portal.MXID) == 0 {
  192. portal.log.Warnln("handleMessage called even though portal.MXID is empty")
  193. return
  194. }
  195. switch data := msg.data.(type) {
  196. case whatsapp.TextMessage:
  197. portal.HandleTextMessage(msg.source, data)
  198. case whatsapp.ImageMessage:
  199. portal.HandleMediaMessage(msg.source, mediaMessage{
  200. base: base{data.Download, data.Info, data.ContextInfo, data.Type},
  201. thumbnail: data.Thumbnail,
  202. caption: data.Caption,
  203. })
  204. case whatsapp.StickerMessage:
  205. portal.HandleMediaMessage(msg.source, mediaMessage{
  206. base: base{data.Download, data.Info, data.ContextInfo, data.Type},
  207. sendAsSticker: true,
  208. })
  209. case whatsapp.VideoMessage:
  210. portal.HandleMediaMessage(msg.source, mediaMessage{
  211. base: base{data.Download, data.Info, data.ContextInfo, data.Type},
  212. thumbnail: data.Thumbnail,
  213. caption: data.Caption,
  214. length: data.Length,
  215. })
  216. case whatsapp.AudioMessage:
  217. portal.HandleMediaMessage(msg.source, mediaMessage{
  218. base: base{data.Download, data.Info, data.ContextInfo, data.Type},
  219. length: data.Length,
  220. })
  221. case whatsapp.DocumentMessage:
  222. fileName := data.FileName
  223. if len(fileName) == 0 {
  224. fileName = data.Title
  225. }
  226. portal.HandleMediaMessage(msg.source, mediaMessage{
  227. base: base{data.Download, data.Info, data.ContextInfo, data.Type},
  228. thumbnail: data.Thumbnail,
  229. fileName: fileName,
  230. })
  231. case whatsapp.ContactMessage:
  232. portal.HandleContactMessage(msg.source, data)
  233. case whatsapp.LocationMessage:
  234. portal.HandleLocationMessage(msg.source, data)
  235. case whatsappExt.MessageRevocation:
  236. portal.HandleMessageRevoke(msg.source, data)
  237. case FakeMessage:
  238. portal.HandleFakeMessage(msg.source, data)
  239. default:
  240. portal.log.Warnln("Unknown message type:", reflect.TypeOf(msg.data))
  241. }
  242. }
  243. func (portal *Portal) isRecentlyHandled(id types.WhatsAppMessageID) bool {
  244. start := portal.recentlyHandledIndex
  245. for i := start; i != start; i = (i - 1) % recentlyHandledLength {
  246. if portal.recentlyHandled[i] == id {
  247. return true
  248. }
  249. }
  250. return false
  251. }
  252. func (portal *Portal) isDuplicate(id types.WhatsAppMessageID) bool {
  253. msg := portal.bridge.DB.Message.GetByJID(portal.Key, id)
  254. if msg != nil {
  255. return true
  256. }
  257. return false
  258. }
  259. func init() {
  260. gob.Register(&waProto.Message{})
  261. }
  262. func (portal *Portal) markHandled(source *User, message *waProto.WebMessageInfo, mxid id.EventID) {
  263. msg := portal.bridge.DB.Message.New()
  264. msg.Chat = portal.Key
  265. msg.JID = message.GetKey().GetId()
  266. msg.MXID = mxid
  267. msg.Timestamp = message.GetMessageTimestamp()
  268. if message.GetKey().GetFromMe() {
  269. msg.Sender = source.JID
  270. } else if portal.IsPrivateChat() {
  271. msg.Sender = portal.Key.JID
  272. } else {
  273. msg.Sender = message.GetKey().GetParticipant()
  274. if len(msg.Sender) == 0 {
  275. msg.Sender = message.GetParticipant()
  276. }
  277. }
  278. msg.Content = message.Message
  279. msg.Insert()
  280. portal.recentlyHandledLock.Lock()
  281. index := portal.recentlyHandledIndex
  282. portal.recentlyHandledIndex = (portal.recentlyHandledIndex + 1) % recentlyHandledLength
  283. portal.recentlyHandledLock.Unlock()
  284. portal.recentlyHandled[index] = msg.JID
  285. }
  286. func (portal *Portal) getMessageIntent(user *User, info whatsapp.MessageInfo) *appservice.IntentAPI {
  287. if info.FromMe {
  288. return portal.bridge.GetPuppetByJID(user.JID).IntentFor(portal)
  289. } else if portal.IsPrivateChat() {
  290. return portal.MainIntent()
  291. } else if len(info.SenderJid) == 0 {
  292. if len(info.Source.GetParticipant()) != 0 {
  293. info.SenderJid = info.Source.GetParticipant()
  294. } else {
  295. return nil
  296. }
  297. }
  298. return portal.bridge.GetPuppetByJID(info.SenderJid).IntentFor(portal)
  299. }
  300. func (portal *Portal) startHandling(source *User, info whatsapp.MessageInfo) *appservice.IntentAPI {
  301. // TODO these should all be trace logs
  302. if portal.lastMessageTs > info.Timestamp+1 {
  303. portal.log.Debugfln("Not handling %s: message is older (%d) than last bridge message (%d)", info.Id, info.Timestamp, portal.lastMessageTs)
  304. } else if portal.isRecentlyHandled(info.Id) {
  305. portal.log.Debugfln("Not handling %s: message was recently handled", info.Id)
  306. } else if portal.isDuplicate(info.Id) {
  307. portal.log.Debugfln("Not handling %s: message is duplicate", info.Id)
  308. } else {
  309. portal.log.Debugfln("Starting handling of %s (ts: %d)", info.Id, info.Timestamp)
  310. portal.lastMessageTs = info.Timestamp
  311. return portal.getMessageIntent(source, info)
  312. }
  313. return nil
  314. }
  315. func (portal *Portal) finishHandling(source *User, message *waProto.WebMessageInfo, mxid id.EventID) {
  316. portal.markHandled(source, message, mxid)
  317. portal.sendDeliveryReceipt(mxid)
  318. portal.log.Debugln("Handled message", message.GetKey().GetId(), "->", mxid)
  319. }
  320. func (portal *Portal) SyncParticipants(metadata *whatsappExt.GroupInfo) {
  321. changed := false
  322. levels, err := portal.MainIntent().PowerLevels(portal.MXID)
  323. if err != nil {
  324. levels = portal.GetBasePowerLevels()
  325. changed = true
  326. }
  327. participantMap := make(map[string]bool)
  328. for _, participant := range metadata.Participants {
  329. participantMap[participant.JID] = true
  330. user := portal.bridge.GetUserByJID(participant.JID)
  331. portal.userMXIDAction(user, portal.ensureMXIDInvited)
  332. puppet := portal.bridge.GetPuppetByJID(participant.JID)
  333. err := puppet.IntentFor(portal).EnsureJoined(portal.MXID)
  334. if err != nil {
  335. portal.log.Warnfln("Failed to make puppet of %s join %s: %v", participant.JID, portal.MXID, err)
  336. }
  337. expectedLevel := 0
  338. if participant.IsSuperAdmin {
  339. expectedLevel = 95
  340. } else if participant.IsAdmin {
  341. expectedLevel = 50
  342. }
  343. changed = levels.EnsureUserLevel(puppet.MXID, expectedLevel) || changed
  344. if user != nil {
  345. changed = levels.EnsureUserLevel(user.MXID, expectedLevel) || changed
  346. }
  347. }
  348. if changed {
  349. _, err = portal.MainIntent().SetPowerLevels(portal.MXID, levels)
  350. if err != nil {
  351. portal.log.Errorln("Failed to change power levels:", err)
  352. }
  353. }
  354. members, err := portal.MainIntent().JoinedMembers(portal.MXID)
  355. if err != nil {
  356. portal.log.Warnln("Failed to get member list:", err)
  357. } else {
  358. for member := range members.Joined {
  359. jid, ok := portal.bridge.ParsePuppetMXID(member)
  360. if ok {
  361. _, shouldBePresent := participantMap[jid]
  362. if !shouldBePresent {
  363. _, err := portal.MainIntent().KickUser(portal.MXID, &mautrix.ReqKickUser{
  364. UserID: member,
  365. Reason: "User had left this WhatsApp chat",
  366. })
  367. if err != nil {
  368. portal.log.Warnfln("Failed to kick user %s who had left: %v", member, err)
  369. }
  370. }
  371. }
  372. }
  373. }
  374. }
  375. func (portal *Portal) UpdateAvatar(user *User, avatar *whatsappExt.ProfilePicInfo, updateInfo bool) bool {
  376. if avatar == nil {
  377. var err error
  378. avatar, err = user.Conn.GetProfilePicThumb(portal.Key.JID)
  379. if err != nil {
  380. portal.log.Errorln(err)
  381. return false
  382. }
  383. }
  384. if avatar.Status != 0 {
  385. return false
  386. }
  387. if portal.Avatar == avatar.Tag {
  388. return false
  389. }
  390. data, err := avatar.DownloadBytes()
  391. if err != nil {
  392. portal.log.Warnln("Failed to download avatar:", err)
  393. return false
  394. }
  395. mimeType := http.DetectContentType(data)
  396. resp, err := portal.MainIntent().UploadBytes(data, mimeType)
  397. if err != nil {
  398. portal.log.Warnln("Failed to upload avatar:", err)
  399. return false
  400. }
  401. portal.AvatarURL = resp.ContentURI
  402. if len(portal.MXID) > 0 {
  403. _, err = portal.MainIntent().SetRoomAvatar(portal.MXID, resp.ContentURI)
  404. if err != nil {
  405. portal.log.Warnln("Failed to set room topic:", err)
  406. return false
  407. }
  408. }
  409. portal.Avatar = avatar.Tag
  410. if updateInfo {
  411. portal.UpdateBridgeInfo()
  412. }
  413. return true
  414. }
  415. func (portal *Portal) UpdateName(name string, setBy types.WhatsAppID, updateInfo bool) bool {
  416. if portal.Name != name {
  417. intent := portal.MainIntent()
  418. if len(setBy) > 0 {
  419. intent = portal.bridge.GetPuppetByJID(setBy).IntentFor(portal)
  420. }
  421. _, err := intent.SetRoomName(portal.MXID, name)
  422. if err == nil {
  423. portal.Name = name
  424. if updateInfo {
  425. portal.UpdateBridgeInfo()
  426. }
  427. return true
  428. }
  429. portal.log.Warnln("Failed to set room name:", err)
  430. }
  431. return false
  432. }
  433. func (portal *Portal) UpdateTopic(topic string, setBy types.WhatsAppID, updateInfo bool) bool {
  434. if portal.Topic != topic {
  435. intent := portal.MainIntent()
  436. if len(setBy) > 0 {
  437. intent = portal.bridge.GetPuppetByJID(setBy).IntentFor(portal)
  438. }
  439. _, err := intent.SetRoomTopic(portal.MXID, topic)
  440. if err == nil {
  441. portal.Topic = topic
  442. if updateInfo {
  443. portal.UpdateBridgeInfo()
  444. }
  445. return true
  446. }
  447. portal.log.Warnln("Failed to set room topic:", err)
  448. }
  449. return false
  450. }
  451. func (portal *Portal) UpdateMetadata(user *User) bool {
  452. if portal.IsPrivateChat() {
  453. return false
  454. } else if portal.IsStatusBroadcastRoom() {
  455. update := false
  456. update = portal.UpdateName("WhatsApp Status Broadcast", "", false) || update
  457. update = portal.UpdateTopic("WhatsApp status updates from your contacts", "", false) || update
  458. return update
  459. }
  460. metadata, err := user.Conn.GetGroupMetaData(portal.Key.JID)
  461. if err != nil {
  462. portal.log.Errorln(err)
  463. return false
  464. }
  465. if metadata.Status != 0 {
  466. // 401: access denied
  467. // 404: group does (no longer) exist
  468. // 500: ??? happens with status@broadcast
  469. // TODO: update the room, e.g. change priority level
  470. // to send messages to moderator
  471. return false
  472. }
  473. portal.SyncParticipants(metadata)
  474. update := false
  475. update = portal.UpdateName(metadata.Name, metadata.NameSetBy, false) || update
  476. update = portal.UpdateTopic(metadata.Topic, metadata.TopicSetBy, false) || update
  477. portal.RestrictMessageSending(metadata.Announce)
  478. return update
  479. }
  480. func (portal *Portal) userMXIDAction(user *User, fn func(mxid id.UserID)) {
  481. if user == nil {
  482. return
  483. }
  484. if user == portal.bridge.Relaybot {
  485. for _, mxid := range portal.bridge.Config.Bridge.Relaybot.InviteUsers {
  486. fn(mxid)
  487. }
  488. } else {
  489. fn(user.MXID)
  490. }
  491. }
  492. func (portal *Portal) ensureMXIDInvited(mxid id.UserID) {
  493. err := portal.MainIntent().EnsureInvited(portal.MXID, mxid)
  494. if err != nil {
  495. portal.log.Warnfln("Failed to ensure %s is invited to %s: %v", mxid, portal.MXID, err)
  496. }
  497. }
  498. func (portal *Portal) ensureUserInvited(user *User) {
  499. portal.userMXIDAction(user, portal.ensureMXIDInvited)
  500. customPuppet := portal.bridge.GetPuppetByCustomMXID(user.MXID)
  501. if customPuppet != nil && customPuppet.CustomIntent() != nil {
  502. _ = customPuppet.CustomIntent().EnsureJoined(portal.MXID)
  503. }
  504. }
  505. func (portal *Portal) Sync(user *User, contact whatsapp.Contact) {
  506. portal.log.Infoln("Syncing portal for", user.MXID)
  507. if user.IsRelaybot {
  508. yes := true
  509. portal.hasRelaybot = &yes
  510. }
  511. if len(portal.MXID) == 0 {
  512. if !portal.IsPrivateChat() {
  513. portal.Name = contact.Name
  514. }
  515. err := portal.CreateMatrixRoom(user)
  516. if err != nil {
  517. portal.log.Errorln("Failed to create portal room:", err)
  518. return
  519. }
  520. } else {
  521. portal.ensureUserInvited(user)
  522. }
  523. if portal.IsPrivateChat() {
  524. return
  525. }
  526. update := false
  527. update = portal.UpdateMetadata(user) || update
  528. if !portal.IsStatusBroadcastRoom() {
  529. update = portal.UpdateAvatar(user, nil, false) || update
  530. }
  531. if update {
  532. portal.Update()
  533. portal.UpdateBridgeInfo()
  534. }
  535. }
  536. func (portal *Portal) GetBasePowerLevels() *event.PowerLevelsEventContent {
  537. anyone := 0
  538. nope := 99
  539. invite := 50
  540. if portal.bridge.Config.Bridge.AllowUserInvite {
  541. invite = 0
  542. }
  543. return &event.PowerLevelsEventContent{
  544. UsersDefault: anyone,
  545. EventsDefault: anyone,
  546. RedactPtr: &anyone,
  547. StateDefaultPtr: &nope,
  548. BanPtr: &nope,
  549. InvitePtr: &invite,
  550. Users: map[id.UserID]int{
  551. portal.MainIntent().UserID: 100,
  552. },
  553. Events: map[string]int{
  554. event.StateRoomName.Type: anyone,
  555. event.StateRoomAvatar.Type: anyone,
  556. event.StateTopic.Type: anyone,
  557. },
  558. }
  559. }
  560. func (portal *Portal) ChangeAdminStatus(jids []string, setAdmin bool) {
  561. levels, err := portal.MainIntent().PowerLevels(portal.MXID)
  562. if err != nil {
  563. levels = portal.GetBasePowerLevels()
  564. }
  565. newLevel := 0
  566. if setAdmin {
  567. newLevel = 50
  568. }
  569. changed := false
  570. for _, jid := range jids {
  571. puppet := portal.bridge.GetPuppetByJID(jid)
  572. changed = levels.EnsureUserLevel(puppet.MXID, newLevel) || changed
  573. user := portal.bridge.GetUserByJID(jid)
  574. if user != nil {
  575. changed = levels.EnsureUserLevel(user.MXID, newLevel) || changed
  576. }
  577. }
  578. if changed {
  579. _, err = portal.MainIntent().SetPowerLevels(portal.MXID, levels)
  580. if err != nil {
  581. portal.log.Errorln("Failed to change power levels:", err)
  582. }
  583. }
  584. }
  585. func (portal *Portal) RestrictMessageSending(restrict bool) {
  586. levels, err := portal.MainIntent().PowerLevels(portal.MXID)
  587. if err != nil {
  588. levels = portal.GetBasePowerLevels()
  589. }
  590. newLevel := 0
  591. if restrict {
  592. newLevel = 50
  593. }
  594. if levels.EventsDefault == newLevel {
  595. return
  596. }
  597. levels.EventsDefault = newLevel
  598. _, err = portal.MainIntent().SetPowerLevels(portal.MXID, levels)
  599. if err != nil {
  600. portal.log.Errorln("Failed to change power levels:", err)
  601. }
  602. }
  603. func (portal *Portal) RestrictMetadataChanges(restrict bool) {
  604. levels, err := portal.MainIntent().PowerLevels(portal.MXID)
  605. if err != nil {
  606. levels = portal.GetBasePowerLevels()
  607. }
  608. newLevel := 0
  609. if restrict {
  610. newLevel = 50
  611. }
  612. changed := false
  613. changed = levels.EnsureEventLevel(event.StateRoomName, newLevel) || changed
  614. changed = levels.EnsureEventLevel(event.StateRoomAvatar, newLevel) || changed
  615. changed = levels.EnsureEventLevel(event.StateTopic, newLevel) || changed
  616. if changed {
  617. _, err = portal.MainIntent().SetPowerLevels(portal.MXID, levels)
  618. if err != nil {
  619. portal.log.Errorln("Failed to change power levels:", err)
  620. }
  621. }
  622. }
  623. func (portal *Portal) BackfillHistory(user *User, lastMessageTime uint64) error {
  624. if !portal.bridge.Config.Bridge.RecoverHistory {
  625. return nil
  626. }
  627. endBackfill := portal.beginBackfill()
  628. defer endBackfill()
  629. lastMessage := portal.bridge.DB.Message.GetLastInChat(portal.Key)
  630. if lastMessage == nil {
  631. return nil
  632. }
  633. if lastMessage.Timestamp >= lastMessageTime {
  634. portal.log.Debugln("Not backfilling: no new messages")
  635. return nil
  636. }
  637. lastMessageID := lastMessage.JID
  638. lastMessageFromMe := lastMessage.Sender == user.JID
  639. portal.log.Infoln("Backfilling history since", lastMessageID, "for", user.MXID)
  640. for len(lastMessageID) > 0 {
  641. portal.log.Debugln("Backfilling history: 50 messages after", lastMessageID)
  642. resp, err := user.Conn.LoadMessagesAfter(portal.Key.JID, lastMessageID, lastMessageFromMe, 50)
  643. if err != nil {
  644. return err
  645. }
  646. messages, ok := resp.Content.([]interface{})
  647. if !ok || len(messages) == 0 {
  648. break
  649. }
  650. portal.handleHistory(user, messages)
  651. lastMessageProto, ok := messages[len(messages)-1].(*waProto.WebMessageInfo)
  652. if ok {
  653. lastMessageID = lastMessageProto.GetKey().GetId()
  654. lastMessageFromMe = lastMessageProto.GetKey().GetFromMe()
  655. }
  656. }
  657. portal.log.Infoln("Backfilling finished")
  658. return nil
  659. }
  660. func (portal *Portal) beginBackfill() func() {
  661. portal.backfillWait.Add(1)
  662. select {
  663. case portal.backfillStart <- struct{}{}:
  664. default:
  665. }
  666. portal.backfilling = true
  667. var privateChatPuppetInvited bool
  668. var privateChatPuppet *Puppet
  669. if portal.IsPrivateChat() && portal.bridge.Config.Bridge.InviteOwnPuppetForBackfilling && portal.Key.JID != portal.Key.Receiver {
  670. privateChatPuppet = portal.bridge.GetPuppetByJID(portal.Key.Receiver)
  671. portal.privateChatBackfillInvitePuppet = func() {
  672. if privateChatPuppetInvited {
  673. return
  674. }
  675. privateChatPuppetInvited = true
  676. _, _ = portal.MainIntent().InviteUser(portal.MXID, &mautrix.ReqInviteUser{UserID: privateChatPuppet.MXID})
  677. _ = privateChatPuppet.DefaultIntent().EnsureJoined(portal.MXID)
  678. }
  679. }
  680. return func() {
  681. portal.backfilling = false
  682. portal.privateChatBackfillInvitePuppet = nil
  683. portal.backfillWait.Done()
  684. if privateChatPuppet != nil && privateChatPuppetInvited {
  685. _, _ = privateChatPuppet.DefaultIntent().LeaveRoom(portal.MXID)
  686. }
  687. }
  688. }
  689. func (portal *Portal) disableNotifications(user *User) {
  690. if !portal.bridge.Config.Bridge.HistoryDisableNotifs {
  691. return
  692. }
  693. puppet := portal.bridge.GetPuppetByCustomMXID(user.MXID)
  694. if puppet == nil || puppet.customIntent == nil {
  695. return
  696. }
  697. portal.log.Debugfln("Disabling notifications for %s for backfilling", user.MXID)
  698. ruleID := fmt.Sprintf("net.maunium.silence_while_backfilling.%s", portal.MXID)
  699. err := puppet.customIntent.PutPushRule("global", pushrules.OverrideRule, ruleID, &mautrix.ReqPutPushRule{
  700. Actions: []pushrules.PushActionType{pushrules.ActionDontNotify},
  701. Conditions: []pushrules.PushCondition{{
  702. Kind: pushrules.KindEventMatch,
  703. Key: "room_id",
  704. Pattern: string(portal.MXID),
  705. }},
  706. })
  707. if err != nil {
  708. portal.log.Warnfln("Failed to disable notifications for %s while backfilling: %v", user.MXID, err)
  709. }
  710. }
  711. func (portal *Portal) enableNotifications(user *User) {
  712. if !portal.bridge.Config.Bridge.HistoryDisableNotifs {
  713. return
  714. }
  715. puppet := portal.bridge.GetPuppetByCustomMXID(user.MXID)
  716. if puppet == nil || puppet.customIntent == nil {
  717. return
  718. }
  719. portal.log.Debugfln("Re-enabling notifications for %s after backfilling", user.MXID)
  720. ruleID := fmt.Sprintf("net.maunium.silence_while_backfilling.%s", portal.MXID)
  721. err := puppet.customIntent.DeletePushRule("global", pushrules.OverrideRule, ruleID)
  722. if err != nil {
  723. portal.log.Warnfln("Failed to re-enable notifications for %s after backfilling: %v", user.MXID, err)
  724. }
  725. }
  726. func (portal *Portal) FillInitialHistory(user *User) error {
  727. if portal.bridge.Config.Bridge.InitialHistoryFill == 0 {
  728. return nil
  729. }
  730. endBackfill := portal.beginBackfill()
  731. defer endBackfill()
  732. if portal.privateChatBackfillInvitePuppet != nil {
  733. portal.privateChatBackfillInvitePuppet()
  734. }
  735. n := portal.bridge.Config.Bridge.InitialHistoryFill
  736. portal.log.Infoln("Filling initial history, maximum", n, "messages")
  737. var messages []interface{}
  738. before := ""
  739. fromMe := true
  740. chunkNum := 1
  741. for n > 0 {
  742. count := 50
  743. if n < count {
  744. count = n
  745. }
  746. portal.log.Debugfln("Fetching chunk %d (%d messages / %d cap) before message %s", chunkNum, count, n, before)
  747. resp, err := user.Conn.LoadMessagesBefore(portal.Key.JID, before, fromMe, count)
  748. if err != nil {
  749. return err
  750. }
  751. chunk, ok := resp.Content.([]interface{})
  752. if !ok || len(chunk) == 0 {
  753. portal.log.Infoln("Chunk empty, starting handling of loaded messages")
  754. break
  755. }
  756. messages = append(chunk, messages...)
  757. portal.log.Debugfln("Fetched chunk and received %d messages", len(chunk))
  758. n -= len(chunk)
  759. key := chunk[0].(*waProto.WebMessageInfo).GetKey()
  760. before = key.GetId()
  761. fromMe = key.GetFromMe()
  762. if len(before) == 0 {
  763. portal.log.Infoln("No message ID for first message, starting handling of loaded messages")
  764. break
  765. }
  766. }
  767. portal.disableNotifications(user)
  768. portal.handleHistory(user, messages)
  769. portal.enableNotifications(user)
  770. portal.log.Infoln("Initial history fill complete")
  771. return nil
  772. }
  773. func (portal *Portal) handleHistory(user *User, messages []interface{}) {
  774. portal.log.Infoln("Handling", len(messages), "messages of history")
  775. for _, rawMessage := range messages {
  776. message, ok := rawMessage.(*waProto.WebMessageInfo)
  777. if !ok {
  778. portal.log.Warnln("Unexpected non-WebMessageInfo item in history response:", rawMessage)
  779. continue
  780. }
  781. data := whatsapp.ParseProtoMessage(message)
  782. if data == nil {
  783. st := message.GetMessageStubType()
  784. // Ignore some types that are known to fail
  785. if st == waProto.WebMessageInfo_CALL_MISSED_VOICE || st == waProto.WebMessageInfo_CALL_MISSED_VIDEO ||
  786. st == waProto.WebMessageInfo_CALL_MISSED_GROUP_VOICE || st == waProto.WebMessageInfo_CALL_MISSED_GROUP_VIDEO {
  787. continue
  788. }
  789. portal.log.Warnln("Message", message.GetKey().GetId(), "failed to parse during backfilling")
  790. continue
  791. }
  792. if portal.privateChatBackfillInvitePuppet != nil && message.GetKey().GetFromMe() && portal.IsPrivateChat() {
  793. portal.privateChatBackfillInvitePuppet()
  794. }
  795. portal.handleMessage(PortalMessage{portal.Key.JID, user, data, message.GetMessageTimestamp()})
  796. }
  797. }
  798. type BridgeInfoSection struct {
  799. ID string `json:"id"`
  800. DisplayName string `json:"displayname,omitempty"`
  801. AvatarURL id.ContentURIString `json:"avatar_url,omitempty"`
  802. ExternalURL string `json:"external_url,omitempty"`
  803. }
  804. type BridgeInfoContent struct {
  805. BridgeBot id.UserID `json:"bridgebot"`
  806. Creator id.UserID `json:"creator,omitempty"`
  807. Protocol BridgeInfoSection `json:"protocol"`
  808. Network *BridgeInfoSection `json:"network,omitempty"`
  809. Channel BridgeInfoSection `json:"channel"`
  810. }
  811. var (
  812. StateBridgeInfo = event.Type{Type: "m.bridge", Class: event.StateEventType}
  813. StateHalfShotBridgeInfo = event.Type{Type: "uk.half-shot.bridge", Class: event.StateEventType}
  814. )
  815. func (portal *Portal) getBridgeInfo() (string, BridgeInfoContent) {
  816. bridgeInfo := BridgeInfoContent{
  817. BridgeBot: portal.bridge.Bot.UserID,
  818. Creator: portal.MainIntent().UserID,
  819. Protocol: BridgeInfoSection{
  820. ID: "whatsapp",
  821. DisplayName: "WhatsApp",
  822. AvatarURL: id.ContentURIString(portal.bridge.Config.AppService.Bot.Avatar),
  823. ExternalURL: "https://www.whatsapp.com/",
  824. },
  825. Channel: BridgeInfoSection{
  826. ID: portal.Key.JID,
  827. DisplayName: portal.Name,
  828. AvatarURL: portal.AvatarURL.CUString(),
  829. },
  830. }
  831. bridgeInfoStateKey := fmt.Sprintf("net.maunium.whatsapp://whatsapp/%s", portal.Key.JID)
  832. return bridgeInfoStateKey, bridgeInfo
  833. }
  834. func (portal *Portal) UpdateBridgeInfo() {
  835. if len(portal.MXID) == 0 {
  836. portal.log.Debugln("Not updating bridge info: no Matrix room created")
  837. return
  838. }
  839. portal.log.Debugln("Updating bridge info...")
  840. stateKey, content := portal.getBridgeInfo()
  841. _, err := portal.MainIntent().SendStateEvent(portal.MXID, StateBridgeInfo, stateKey, content)
  842. if err != nil {
  843. portal.log.Warnln("Failed to update m.bridge:", err)
  844. }
  845. _, err = portal.MainIntent().SendStateEvent(portal.MXID, StateHalfShotBridgeInfo, stateKey, content)
  846. if err != nil {
  847. portal.log.Warnln("Failed to update uk.half-shot.bridge:", err)
  848. }
  849. }
  850. func (portal *Portal) CreateMatrixRoom(user *User) error {
  851. portal.roomCreateLock.Lock()
  852. defer portal.roomCreateLock.Unlock()
  853. if len(portal.MXID) > 0 {
  854. return nil
  855. }
  856. intent := portal.MainIntent()
  857. if err := intent.EnsureRegistered(); err != nil {
  858. return err
  859. }
  860. portal.log.Infoln("Creating Matrix room. Info source:", user.MXID)
  861. var metadata *whatsappExt.GroupInfo
  862. if portal.IsPrivateChat() {
  863. puppet := portal.bridge.GetPuppetByJID(portal.Key.JID)
  864. if portal.bridge.Config.Bridge.PrivateChatPortalMeta {
  865. portal.Name = puppet.Displayname
  866. portal.AvatarURL = puppet.AvatarURL
  867. portal.Avatar = puppet.Avatar
  868. } else {
  869. portal.Name = ""
  870. }
  871. portal.Topic = "WhatsApp private chat"
  872. } else if portal.IsStatusBroadcastRoom() {
  873. portal.Name = "WhatsApp Status Broadcast"
  874. portal.Topic = "WhatsApp status updates from your contacts"
  875. } else {
  876. var err error
  877. metadata, err = user.Conn.GetGroupMetaData(portal.Key.JID)
  878. if err == nil && metadata.Status == 0 {
  879. portal.Name = metadata.Name
  880. portal.Topic = metadata.Topic
  881. }
  882. portal.UpdateAvatar(user, nil, false)
  883. }
  884. bridgeInfoStateKey, bridgeInfo := portal.getBridgeInfo()
  885. initialState := []*event.Event{{
  886. Type: event.StatePowerLevels,
  887. Content: event.Content{
  888. Parsed: portal.GetBasePowerLevels(),
  889. },
  890. }, {
  891. Type: StateBridgeInfo,
  892. Content: event.Content{Parsed: bridgeInfo},
  893. StateKey: &bridgeInfoStateKey,
  894. }, {
  895. // TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
  896. Type: StateHalfShotBridgeInfo,
  897. Content: event.Content{Parsed: bridgeInfo},
  898. StateKey: &bridgeInfoStateKey,
  899. }}
  900. if !portal.AvatarURL.IsEmpty() {
  901. initialState = append(initialState, &event.Event{
  902. Type: event.StateRoomAvatar,
  903. Content: event.Content{
  904. Parsed: event.RoomAvatarEventContent{URL: portal.AvatarURL},
  905. },
  906. })
  907. }
  908. invite := []id.UserID{user.MXID}
  909. if user.IsRelaybot {
  910. invite = portal.bridge.Config.Bridge.Relaybot.InviteUsers
  911. }
  912. if portal.bridge.Config.Bridge.Encryption.Default {
  913. initialState = append(initialState, &event.Event{
  914. Type: event.StateEncryption,
  915. Content: event.Content{
  916. Parsed: event.EncryptionEventContent{Algorithm: id.AlgorithmMegolmV1},
  917. },
  918. })
  919. portal.Encrypted = true
  920. if portal.IsPrivateChat() {
  921. invite = append(invite, portal.bridge.Bot.UserID)
  922. }
  923. }
  924. resp, err := intent.CreateRoom(&mautrix.ReqCreateRoom{
  925. Visibility: "private",
  926. Name: portal.Name,
  927. Topic: portal.Topic,
  928. Invite: invite,
  929. Preset: "private_chat",
  930. IsDirect: portal.IsPrivateChat(),
  931. InitialState: initialState,
  932. })
  933. if err != nil {
  934. return err
  935. }
  936. portal.MXID = resp.RoomID
  937. portal.Update()
  938. portal.bridge.portalsLock.Lock()
  939. portal.bridge.portalsByMXID[portal.MXID] = portal
  940. portal.bridge.portalsLock.Unlock()
  941. // We set the memberships beforehand to make sure the encryption key exchange in initial backfill knows the users are here.
  942. for _, user := range invite {
  943. portal.bridge.StateStore.SetMembership(portal.MXID, user, event.MembershipInvite)
  944. }
  945. if metadata != nil {
  946. portal.SyncParticipants(metadata)
  947. if metadata.Announce {
  948. portal.RestrictMessageSending(metadata.Announce)
  949. }
  950. } else {
  951. customPuppet := portal.bridge.GetPuppetByCustomMXID(user.MXID)
  952. if customPuppet != nil && customPuppet.CustomIntent() != nil {
  953. _ = customPuppet.CustomIntent().EnsureJoined(portal.MXID)
  954. }
  955. }
  956. user.addPortalToCommunity(portal)
  957. if portal.IsPrivateChat() {
  958. puppet := user.bridge.GetPuppetByJID(portal.Key.JID)
  959. user.addPuppetToCommunity(puppet)
  960. if portal.bridge.Config.Bridge.Encryption.Default {
  961. err = portal.bridge.Bot.EnsureJoined(portal.MXID)
  962. if err != nil {
  963. portal.log.Errorln("Failed to join created portal with bridge bot for e2be:", err)
  964. }
  965. }
  966. user.UpdateDirectChats(map[id.UserID][]id.RoomID{puppet.MXID: {portal.MXID}})
  967. }
  968. err = portal.FillInitialHistory(user)
  969. if err != nil {
  970. portal.log.Errorln("Failed to fill history:", err)
  971. }
  972. return nil
  973. }
  974. func (portal *Portal) IsPrivateChat() bool {
  975. if portal.isPrivate == nil {
  976. val := strings.HasSuffix(portal.Key.JID, whatsappExt.NewUserSuffix)
  977. portal.isPrivate = &val
  978. }
  979. return *portal.isPrivate
  980. }
  981. func (portal *Portal) HasRelaybot() bool {
  982. if portal.bridge.Relaybot == nil {
  983. return false
  984. } else if portal.hasRelaybot == nil {
  985. val := portal.bridge.Relaybot.IsInPortal(portal.Key)
  986. portal.hasRelaybot = &val
  987. }
  988. return *portal.hasRelaybot
  989. }
  990. func (portal *Portal) IsStatusBroadcastRoom() bool {
  991. return portal.Key.JID == "status@broadcast"
  992. }
  993. func (portal *Portal) MainIntent() *appservice.IntentAPI {
  994. if portal.IsPrivateChat() {
  995. return portal.bridge.GetPuppetByJID(portal.Key.JID).DefaultIntent()
  996. }
  997. return portal.bridge.Bot
  998. }
  999. func (portal *Portal) SetReply(content *event.MessageEventContent, info whatsapp.ContextInfo) {
  1000. if len(info.QuotedMessageID) == 0 {
  1001. return
  1002. }
  1003. message := portal.bridge.DB.Message.GetByJID(portal.Key, info.QuotedMessageID)
  1004. if message != nil {
  1005. evt, err := portal.MainIntent().GetEvent(portal.MXID, message.MXID)
  1006. if err != nil {
  1007. portal.log.Warnln("Failed to get reply target:", err)
  1008. return
  1009. }
  1010. if evt.Type == event.EventEncrypted {
  1011. _ = evt.Content.ParseRaw(evt.Type)
  1012. decryptedEvt, err := portal.bridge.Crypto.Decrypt(evt)
  1013. if err != nil {
  1014. portal.log.Warnln("Failed to decrypt reply target:", err)
  1015. } else {
  1016. evt = decryptedEvt
  1017. }
  1018. }
  1019. _ = evt.Content.ParseRaw(evt.Type)
  1020. content.SetReply(evt)
  1021. }
  1022. return
  1023. }
  1024. func (portal *Portal) HandleMessageRevoke(user *User, message whatsappExt.MessageRevocation) {
  1025. msg := portal.bridge.DB.Message.GetByJID(portal.Key, message.Id)
  1026. if msg == nil {
  1027. return
  1028. }
  1029. var intent *appservice.IntentAPI
  1030. if message.FromMe {
  1031. if portal.IsPrivateChat() {
  1032. intent = portal.bridge.GetPuppetByJID(user.JID).CustomIntent()
  1033. } else {
  1034. intent = portal.bridge.GetPuppetByJID(user.JID).IntentFor(portal)
  1035. }
  1036. } else if len(message.Participant) > 0 {
  1037. intent = portal.bridge.GetPuppetByJID(message.Participant).IntentFor(portal)
  1038. }
  1039. if intent == nil {
  1040. intent = portal.MainIntent()
  1041. }
  1042. _, err := intent.RedactEvent(portal.MXID, msg.MXID)
  1043. if err != nil {
  1044. portal.log.Errorln("Failed to redact %s: %v", msg.JID, err)
  1045. return
  1046. }
  1047. msg.Delete()
  1048. }
  1049. func (portal *Portal) HandleFakeMessage(_ *User, message FakeMessage) {
  1050. if portal.isRecentlyHandled(message.ID) {
  1051. return
  1052. }
  1053. content := event.MessageEventContent{
  1054. MsgType: event.MsgNotice,
  1055. Body: message.Text,
  1056. }
  1057. if message.Alert {
  1058. content.MsgType = event.MsgText
  1059. }
  1060. _, err := portal.sendMainIntentMessage(content)
  1061. if err != nil {
  1062. portal.log.Errorfln("Failed to handle fake message %s: %v", message.ID, err)
  1063. return
  1064. }
  1065. portal.recentlyHandledLock.Lock()
  1066. index := portal.recentlyHandledIndex
  1067. portal.recentlyHandledIndex = (portal.recentlyHandledIndex + 1) % recentlyHandledLength
  1068. portal.recentlyHandledLock.Unlock()
  1069. portal.recentlyHandled[index] = message.ID
  1070. }
  1071. func (portal *Portal) sendMainIntentMessage(content interface{}) (*mautrix.RespSendEvent, error) {
  1072. return portal.sendMessage(portal.MainIntent(), event.EventMessage, content, 0)
  1073. }
  1074. const MessageSendRetries = 5
  1075. const MediaUploadRetries = 5
  1076. const BadGatewaySleep = 5 * time.Second
  1077. func (portal *Portal) sendMessage(intent *appservice.IntentAPI, eventType event.Type, content interface{}, timestamp int64) (*mautrix.RespSendEvent, error) {
  1078. return portal.sendMessageWithRetry(intent, eventType, content, timestamp, MessageSendRetries)
  1079. }
  1080. func isGatewayError(err error) bool {
  1081. if err == nil {
  1082. return false
  1083. }
  1084. var httpErr mautrix.HTTPError
  1085. return errors.As(err, &httpErr) && (httpErr.IsStatus(http.StatusBadGateway) || httpErr.IsStatus(http.StatusGatewayTimeout))
  1086. }
  1087. func (portal *Portal) sendMessageWithRetry(intent *appservice.IntentAPI, eventType event.Type, content interface{}, timestamp int64, retries int) (*mautrix.RespSendEvent, error) {
  1088. for ;;retries-- {
  1089. resp, err := portal.sendMessageDirect(intent, eventType, content, timestamp)
  1090. if retries > 0 && isGatewayError(err) {
  1091. portal.log.Warnfln("Got gateway error trying to send message, retrying in %d seconds", int(BadGatewaySleep.Seconds()))
  1092. time.Sleep(BadGatewaySleep)
  1093. } else {
  1094. return resp, err
  1095. }
  1096. }
  1097. }
  1098. func (portal *Portal) sendMessageDirect(intent *appservice.IntentAPI, eventType event.Type, content interface{}, timestamp int64) (*mautrix.RespSendEvent, error) {
  1099. wrappedContent := event.Content{Parsed: content}
  1100. if timestamp != 0 && intent.IsCustomPuppet {
  1101. wrappedContent.Raw = map[string]interface{}{
  1102. "net.maunium.whatsapp.puppet": intent.IsCustomPuppet,
  1103. }
  1104. }
  1105. if portal.Encrypted && portal.bridge.Crypto != nil {
  1106. encrypted, err := portal.bridge.Crypto.Encrypt(portal.MXID, eventType, wrappedContent)
  1107. if err != nil {
  1108. return nil, fmt.Errorf("failed to encrypt event: %w", err)
  1109. }
  1110. eventType = event.EventEncrypted
  1111. wrappedContent.Parsed = encrypted
  1112. }
  1113. if timestamp == 0 {
  1114. return intent.SendMessageEvent(portal.MXID, eventType, &wrappedContent)
  1115. } else {
  1116. return intent.SendMassagedMessageEvent(portal.MXID, eventType, &wrappedContent, timestamp)
  1117. }
  1118. }
  1119. func (portal *Portal) HandleTextMessage(source *User, message whatsapp.TextMessage) {
  1120. intent := portal.startHandling(source, message.Info)
  1121. if intent == nil {
  1122. return
  1123. }
  1124. content := &event.MessageEventContent{
  1125. Body: message.Text,
  1126. MsgType: event.MsgText,
  1127. }
  1128. portal.bridge.Formatter.ParseWhatsApp(content, message.ContextInfo.MentionedJID)
  1129. portal.SetReply(content, message.ContextInfo)
  1130. _, _ = intent.UserTyping(portal.MXID, false, 0)
  1131. resp, err := portal.sendMessage(intent, event.EventMessage, content, int64(message.Info.Timestamp*1000))
  1132. if err != nil {
  1133. portal.log.Errorfln("Failed to handle message %s: %v", message.Info.Id, err)
  1134. return
  1135. }
  1136. portal.finishHandling(source, message.Info.Source, resp.EventID)
  1137. }
  1138. func (portal *Portal) HandleLocationMessage(source *User, message whatsapp.LocationMessage) {
  1139. intent := portal.startHandling(source, message.Info)
  1140. if intent == nil {
  1141. return
  1142. }
  1143. url := message.Url
  1144. if len(url) == 0 {
  1145. url = fmt.Sprintf("https://maps.google.com/?q=%.5f,%.5f", message.DegreesLatitude, message.DegreesLongitude)
  1146. }
  1147. name := message.Name
  1148. if len(name) == 0 {
  1149. latChar := 'N'
  1150. if message.DegreesLatitude < 0 {
  1151. latChar = 'S'
  1152. }
  1153. longChar := 'E'
  1154. if message.DegreesLongitude < 0 {
  1155. longChar = 'W'
  1156. }
  1157. name = fmt.Sprintf("%.4f° %c %.4f° %c", math.Abs(message.DegreesLatitude), latChar, math.Abs(message.DegreesLongitude), longChar)
  1158. }
  1159. content := &event.MessageEventContent{
  1160. MsgType: event.MsgLocation,
  1161. Body: fmt.Sprintf("Location: %s\n%s\n%s", name, message.Address, url),
  1162. Format: event.FormatHTML,
  1163. FormattedBody: fmt.Sprintf("Location: <a href='%s'>%s</a><br>%s", url, name, message.Address),
  1164. GeoURI: fmt.Sprintf("geo:%.5f,%.5f", message.DegreesLatitude, message.DegreesLongitude),
  1165. }
  1166. if len(message.JpegThumbnail) > 0 {
  1167. thumbnailMime := http.DetectContentType(message.JpegThumbnail)
  1168. uploadedThumbnail, _ := intent.UploadBytes(message.JpegThumbnail, thumbnailMime)
  1169. if uploadedThumbnail != nil {
  1170. cfg, _, _ := image.DecodeConfig(bytes.NewReader(message.JpegThumbnail))
  1171. content.Info = &event.FileInfo{
  1172. ThumbnailInfo: &event.FileInfo{
  1173. Size: len(message.JpegThumbnail),
  1174. Width: cfg.Width,
  1175. Height: cfg.Height,
  1176. MimeType: thumbnailMime,
  1177. },
  1178. ThumbnailURL: uploadedThumbnail.ContentURI.CUString(),
  1179. }
  1180. }
  1181. }
  1182. portal.SetReply(content, message.ContextInfo)
  1183. _, _ = intent.UserTyping(portal.MXID, false, 0)
  1184. resp, err := portal.sendMessage(intent, event.EventMessage, content, int64(message.Info.Timestamp*1000))
  1185. if err != nil {
  1186. portal.log.Errorfln("Failed to handle message %s: %v", message.Info.Id, err)
  1187. return
  1188. }
  1189. portal.finishHandling(source, message.Info.Source, resp.EventID)
  1190. }
  1191. func (portal *Portal) HandleContactMessage(source *User, message whatsapp.ContactMessage) {
  1192. intent := portal.startHandling(source, message.Info)
  1193. if intent == nil {
  1194. return
  1195. }
  1196. fileName := fmt.Sprintf("%s.vcf", message.DisplayName)
  1197. data := []byte(message.Vcard)
  1198. mimeType := "text/vcard"
  1199. data, uploadMimeType, file := portal.encryptFile(data, mimeType)
  1200. uploadResp, err := intent.UploadBytesWithName(data, uploadMimeType, fileName)
  1201. if err != nil {
  1202. portal.log.Errorfln("Failed to upload vcard of %s: %v", message.DisplayName, err)
  1203. return
  1204. }
  1205. content := &event.MessageEventContent{
  1206. Body: fileName,
  1207. MsgType: event.MsgFile,
  1208. File: file,
  1209. Info: &event.FileInfo{
  1210. MimeType: mimeType,
  1211. Size: len(message.Vcard),
  1212. },
  1213. }
  1214. if content.File != nil {
  1215. content.File.URL = uploadResp.ContentURI.CUString()
  1216. } else {
  1217. content.URL = uploadResp.ContentURI.CUString()
  1218. }
  1219. portal.SetReply(content, message.ContextInfo)
  1220. _, _ = intent.UserTyping(portal.MXID, false, 0)
  1221. resp, err := portal.sendMessage(intent, event.EventMessage, content, int64(message.Info.Timestamp*1000))
  1222. if err != nil {
  1223. portal.log.Errorfln("Failed to handle message %s: %v", message.Info.Id, err)
  1224. return
  1225. }
  1226. portal.finishHandling(source, message.Info.Source, resp.EventID)
  1227. }
  1228. func (portal *Portal) sendMediaBridgeFailure(source *User, intent *appservice.IntentAPI, info whatsapp.MessageInfo, bridgeErr error) {
  1229. portal.log.Errorfln("Failed to bridge media for %s: %v", info.Id, bridgeErr)
  1230. resp, err := portal.sendMessage(intent, event.EventMessage, &event.MessageEventContent{
  1231. MsgType: event.MsgNotice,
  1232. Body: "Failed to bridge media",
  1233. }, int64(info.Timestamp*1000))
  1234. if err != nil {
  1235. portal.log.Errorfln("Failed to send media download error message for %s: %v", info.Id, err)
  1236. } else {
  1237. portal.finishHandling(source, info.Source, resp.EventID)
  1238. }
  1239. }
  1240. func (portal *Portal) encryptFile(data []byte, mimeType string) ([]byte, string, *event.EncryptedFileInfo) {
  1241. if !portal.Encrypted {
  1242. return data, mimeType, nil
  1243. }
  1244. file := &event.EncryptedFileInfo{
  1245. EncryptedFile: *attachment.NewEncryptedFile(),
  1246. URL: "",
  1247. }
  1248. return file.Encrypt(data), "application/octet-stream", file
  1249. }
  1250. func (portal *Portal) tryKickUser(userID id.UserID, intent *appservice.IntentAPI) error {
  1251. _, err := intent.KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: userID})
  1252. if err != nil {
  1253. httpErr, ok := err.(mautrix.HTTPError)
  1254. if ok && httpErr.RespError != nil && httpErr.RespError.ErrCode == "M_FORBIDDEN" {
  1255. _, err = portal.MainIntent().KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: userID})
  1256. }
  1257. }
  1258. return err
  1259. }
  1260. func (portal *Portal) removeUser(isSameUser bool, kicker *appservice.IntentAPI, target id.UserID, targetIntent *appservice.IntentAPI) {
  1261. if !isSameUser || targetIntent == nil {
  1262. err := portal.tryKickUser(target, kicker)
  1263. if err != nil {
  1264. portal.log.Warnfln("Failed to kick %s from %s: %v", target, portal.MXID, err)
  1265. if targetIntent != nil {
  1266. _, _ = targetIntent.LeaveRoom(portal.MXID)
  1267. }
  1268. }
  1269. } else {
  1270. _, err := targetIntent.LeaveRoom(portal.MXID)
  1271. if err != nil {
  1272. portal.log.Warnfln("Failed to leave portal as %s: %v", target, err)
  1273. _, _ = portal.MainIntent().KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: target})
  1274. }
  1275. }
  1276. }
  1277. func (portal *Portal) HandleWhatsAppKick(senderJID string, jids []string) {
  1278. sender := portal.bridge.GetPuppetByJID(senderJID)
  1279. senderIntent := sender.IntentFor(portal)
  1280. for _, jid := range jids {
  1281. puppet := portal.bridge.GetPuppetByJID(jid)
  1282. portal.removeUser(puppet.JID == sender.JID, senderIntent, puppet.MXID, puppet.DefaultIntent())
  1283. user := portal.bridge.GetUserByJID(jid)
  1284. if user != nil {
  1285. var customIntent *appservice.IntentAPI
  1286. if puppet.CustomMXID == user.MXID {
  1287. customIntent = puppet.CustomIntent()
  1288. }
  1289. portal.removeUser(puppet.JID == sender.JID, senderIntent, user.MXID, customIntent)
  1290. }
  1291. }
  1292. }
  1293. func (portal *Portal) HandleWhatsAppInvite(senderJID string, jids []string) {
  1294. senderIntent := portal.MainIntent()
  1295. if senderJID != "unknown" {
  1296. sender := portal.bridge.GetPuppetByJID(senderJID)
  1297. senderIntent = sender.IntentFor(portal)
  1298. }
  1299. for _, jid := range jids {
  1300. puppet := portal.bridge.GetPuppetByJID(jid)
  1301. _, err := senderIntent.InviteUser(portal.MXID, &mautrix.ReqInviteUser{UserID: puppet.MXID})
  1302. if err != nil {
  1303. portal.log.Warnfln("Failed to invite %s as %s: %v", puppet.MXID, senderIntent.UserID, err)
  1304. }
  1305. err = puppet.DefaultIntent().EnsureJoined(portal.MXID)
  1306. if err != nil {
  1307. portal.log.Errorfln("Failed to ensure %s is joined: %v", puppet.MXID, err)
  1308. }
  1309. }
  1310. }
  1311. type base struct {
  1312. download func() ([]byte, error)
  1313. info whatsapp.MessageInfo
  1314. context whatsapp.ContextInfo
  1315. mimeType string
  1316. }
  1317. type mediaMessage struct {
  1318. base
  1319. thumbnail []byte
  1320. caption string
  1321. fileName string
  1322. length uint32
  1323. sendAsSticker bool
  1324. }
  1325. func (portal *Portal) uploadWithRetry(intent *appservice.IntentAPI, data []byte, mimeType string, retries int) (*mautrix.RespMediaUpload, error) {
  1326. for ;;retries-- {
  1327. uploaded, err := intent.UploadBytes(data, mimeType)
  1328. if isGatewayError(err) {
  1329. portal.log.Warnfln("Got gateway error trying to upload media, retrying in %d seconds", int(BadGatewaySleep.Seconds()))
  1330. time.Sleep(BadGatewaySleep)
  1331. } else {
  1332. return uploaded, err
  1333. }
  1334. }
  1335. }
  1336. func (portal *Portal) HandleMediaMessage(source *User, msg mediaMessage) {
  1337. intent := portal.startHandling(source, msg.info)
  1338. if intent == nil {
  1339. return
  1340. }
  1341. data, err := msg.download()
  1342. if err == whatsapp.ErrMediaDownloadFailedWith404 || err == whatsapp.ErrMediaDownloadFailedWith410 {
  1343. portal.log.Warnfln("Failed to download media for %s: %v. Calling LoadMediaInfo and retrying download...", msg.info.Id, err)
  1344. _, err = source.Conn.LoadMediaInfo(msg.info.RemoteJid, msg.info.Id, msg.info.FromMe)
  1345. if err != nil {
  1346. portal.sendMediaBridgeFailure(source, intent, msg.info, fmt.Errorf("failed to load media info: %w", err))
  1347. return
  1348. }
  1349. data, err = msg.download()
  1350. }
  1351. if err == whatsapp.ErrNoURLPresent {
  1352. portal.log.Debugfln("No URL present error for media message %s, ignoring...", msg.info.Id)
  1353. return
  1354. } else if err != nil {
  1355. portal.sendMediaBridgeFailure(source, intent, msg.info, err)
  1356. return
  1357. }
  1358. var width, height int
  1359. if strings.HasPrefix(msg.mimeType, "image/") {
  1360. cfg, _, _ := image.DecodeConfig(bytes.NewReader(data))
  1361. width, height = cfg.Width, cfg.Height
  1362. }
  1363. data, uploadMimeType, file := portal.encryptFile(data, msg.mimeType)
  1364. uploaded, err := portal.uploadWithRetry(intent, data, uploadMimeType, MediaUploadRetries)
  1365. if err != nil {
  1366. if errors.Is(err, mautrix.MTooLarge) {
  1367. portal.sendMediaBridgeFailure(source, intent, msg.info, errors.New("homeserver rejected too large file"))
  1368. } else if httpErr := err.(mautrix.HTTPError); httpErr.IsStatus(413) {
  1369. portal.sendMediaBridgeFailure(source, intent, msg.info, errors.New("proxy rejected too large file"))
  1370. } else {
  1371. portal.sendMediaBridgeFailure(source, intent, msg.info, fmt.Errorf("failed to upload media: %w", err))
  1372. }
  1373. return
  1374. }
  1375. if msg.fileName == "" {
  1376. mimeClass := strings.Split(msg.mimeType, "/")[0]
  1377. switch mimeClass {
  1378. case "application":
  1379. msg.fileName = "file"
  1380. default:
  1381. msg.fileName = mimeClass
  1382. }
  1383. exts, _ := mime.ExtensionsByType(msg.mimeType)
  1384. if exts != nil && len(exts) > 0 {
  1385. msg.fileName += exts[0]
  1386. }
  1387. }
  1388. content := &event.MessageEventContent{
  1389. Body: msg.fileName,
  1390. File: file,
  1391. Info: &event.FileInfo{
  1392. Size: len(data),
  1393. MimeType: msg.mimeType,
  1394. Width: width,
  1395. Height: height,
  1396. Duration: int(msg.length),
  1397. },
  1398. }
  1399. if content.File != nil {
  1400. content.File.URL = uploaded.ContentURI.CUString()
  1401. } else {
  1402. content.URL = uploaded.ContentURI.CUString()
  1403. }
  1404. portal.SetReply(content, msg.context)
  1405. if msg.thumbnail != nil && portal.bridge.Config.Bridge.WhatsappThumbnail {
  1406. thumbnailMime := http.DetectContentType(msg.thumbnail)
  1407. thumbnailCfg, _, _ := image.DecodeConfig(bytes.NewReader(msg.thumbnail))
  1408. thumbnailSize := len(msg.thumbnail)
  1409. thumbnail, thumbnailUploadMime, thumbnailFile := portal.encryptFile(msg.thumbnail, thumbnailMime)
  1410. uploadedThumbnail, err := intent.UploadBytes(thumbnail, thumbnailUploadMime)
  1411. if err != nil {
  1412. portal.log.Warnfln("Failed to upload thumbnail for %s: %v", msg.info.Id, err)
  1413. } else if uploadedThumbnail != nil {
  1414. if thumbnailFile != nil {
  1415. thumbnailFile.URL = uploadedThumbnail.ContentURI.CUString()
  1416. content.Info.ThumbnailFile = thumbnailFile
  1417. } else {
  1418. content.Info.ThumbnailURL = uploadedThumbnail.ContentURI.CUString()
  1419. }
  1420. content.Info.ThumbnailInfo = &event.FileInfo{
  1421. Size: thumbnailSize,
  1422. Width: thumbnailCfg.Width,
  1423. Height: thumbnailCfg.Height,
  1424. MimeType: thumbnailMime,
  1425. }
  1426. }
  1427. }
  1428. switch strings.ToLower(strings.Split(msg.mimeType, "/")[0]) {
  1429. case "image":
  1430. if !msg.sendAsSticker {
  1431. content.MsgType = event.MsgImage
  1432. }
  1433. case "video":
  1434. content.MsgType = event.MsgVideo
  1435. case "audio":
  1436. content.MsgType = event.MsgAudio
  1437. default:
  1438. content.MsgType = event.MsgFile
  1439. }
  1440. _, _ = intent.UserTyping(portal.MXID, false, 0)
  1441. ts := int64(msg.info.Timestamp * 1000)
  1442. eventType := event.EventMessage
  1443. if msg.sendAsSticker {
  1444. eventType = event.EventSticker
  1445. }
  1446. resp, err := portal.sendMessage(intent, eventType, content, ts)
  1447. if err != nil {
  1448. portal.log.Errorfln("Failed to handle message %s: %v", msg.info.Id, err)
  1449. return
  1450. }
  1451. if len(msg.caption) > 0 {
  1452. captionContent := &event.MessageEventContent{
  1453. Body: msg.caption,
  1454. MsgType: event.MsgNotice,
  1455. }
  1456. portal.bridge.Formatter.ParseWhatsApp(captionContent, msg.context.MentionedJID)
  1457. _, err := portal.sendMessage(intent, event.EventMessage, captionContent, ts)
  1458. if err != nil {
  1459. portal.log.Warnfln("Failed to handle caption of message %s: %v", msg.info.Id, err)
  1460. }
  1461. // TODO store caption mxid?
  1462. }
  1463. portal.finishHandling(source, msg.info.Source, resp.EventID)
  1464. }
  1465. func makeMessageID() *string {
  1466. b := make([]byte, 10)
  1467. rand.Read(b)
  1468. str := strings.ToUpper(hex.EncodeToString(b))
  1469. return &str
  1470. }
  1471. func (portal *Portal) downloadThumbnail(content *event.MessageEventContent, id id.EventID) []byte {
  1472. if len(content.GetInfo().ThumbnailURL) == 0 {
  1473. return nil
  1474. }
  1475. mxc, err := content.GetInfo().ThumbnailURL.Parse()
  1476. if err != nil {
  1477. portal.log.Errorln("Malformed thumbnail URL in %s: %v", id, err)
  1478. }
  1479. thumbnail, err := portal.MainIntent().DownloadBytes(mxc)
  1480. if err != nil {
  1481. portal.log.Errorln("Failed to download thumbnail in %s: %v", id, err)
  1482. return nil
  1483. }
  1484. thumbnailType := http.DetectContentType(thumbnail)
  1485. var img image.Image
  1486. switch thumbnailType {
  1487. case "image/png":
  1488. img, err = png.Decode(bytes.NewReader(thumbnail))
  1489. case "image/gif":
  1490. img, err = gif.Decode(bytes.NewReader(thumbnail))
  1491. case "image/jpeg":
  1492. return thumbnail
  1493. default:
  1494. return nil
  1495. }
  1496. var buf bytes.Buffer
  1497. err = jpeg.Encode(&buf, img, &jpeg.Options{
  1498. Quality: jpeg.DefaultQuality,
  1499. })
  1500. if err != nil {
  1501. portal.log.Errorln("Failed to re-encode thumbnail in %s: %v", id, err)
  1502. return nil
  1503. }
  1504. return buf.Bytes()
  1505. }
  1506. func (portal *Portal) convertGifToVideo(gif []byte) ([]byte, error) {
  1507. dir, err := ioutil.TempDir("", "gif-convert-*")
  1508. if err != nil {
  1509. return nil, fmt.Errorf("failed to make temp dir: %w", err)
  1510. }
  1511. defer os.RemoveAll(dir)
  1512. inputFile, err := os.OpenFile(filepath.Join(dir, "input.gif"), os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0600)
  1513. if err != nil {
  1514. return nil, fmt.Errorf("failed open input file: %w", err)
  1515. }
  1516. _, err = inputFile.Write(gif)
  1517. if err != nil {
  1518. _ = inputFile.Close()
  1519. return nil, fmt.Errorf("failed to write gif to input file: %w", err)
  1520. }
  1521. _ = inputFile.Close()
  1522. outputFileName := filepath.Join(dir, "output.mp4")
  1523. cmd := exec.Command("ffmpeg", "-hide_banner", "-loglevel", "warning",
  1524. "-f", "gif", "-i", inputFile.Name(),
  1525. "-pix_fmt", "yuv420p", "-c:v", "libx264", "-movflags", "+faststart",
  1526. "-filter:v", "crop='floor(in_w/2)*2:floor(in_h/2)*2'",
  1527. outputFileName)
  1528. vcLog := portal.log.Sub("VideoConverter").WithDefaultLevel(log.LevelWarn)
  1529. cmd.Stdout = vcLog
  1530. cmd.Stderr = vcLog
  1531. err = cmd.Run()
  1532. if err != nil {
  1533. return nil, fmt.Errorf("failed to run ffmpeg: %w", err)
  1534. }
  1535. outputFile, err := os.OpenFile(filepath.Join(dir, "output.mp4"), os.O_RDONLY, 0)
  1536. if err != nil {
  1537. return nil, fmt.Errorf("failed to open output file: %w", err)
  1538. }
  1539. defer func() {
  1540. _ = outputFile.Close()
  1541. _ = os.Remove(outputFile.Name())
  1542. }()
  1543. mp4, err := ioutil.ReadAll(outputFile)
  1544. if err != nil {
  1545. return nil, fmt.Errorf("failed to read mp4 from output file: %w", err)
  1546. }
  1547. return mp4, nil
  1548. }
  1549. func (portal *Portal) preprocessMatrixMedia(sender *User, relaybotFormatted bool, content *event.MessageEventContent, eventID id.EventID, mediaType whatsapp.MediaType) *MediaUpload {
  1550. var caption string
  1551. var mentionedJIDs []types.WhatsAppID
  1552. if relaybotFormatted {
  1553. caption, mentionedJIDs = portal.bridge.Formatter.ParseMatrix(content.FormattedBody)
  1554. }
  1555. var file *event.EncryptedFileInfo
  1556. rawMXC := content.URL
  1557. if content.File != nil {
  1558. file = content.File
  1559. rawMXC = file.URL
  1560. }
  1561. mxc, err := rawMXC.Parse()
  1562. if err != nil {
  1563. portal.log.Errorln("Malformed content URL in %s: %v", eventID, err)
  1564. return nil
  1565. }
  1566. data, err := portal.MainIntent().DownloadBytes(mxc)
  1567. if err != nil {
  1568. portal.log.Errorfln("Failed to download media in %s: %v", eventID, err)
  1569. return nil
  1570. }
  1571. if file != nil {
  1572. data, err = file.Decrypt(data)
  1573. if err != nil {
  1574. portal.log.Errorfln("Failed to decrypt media in %s: %v", eventID, err)
  1575. return nil
  1576. }
  1577. }
  1578. if mediaType == whatsapp.MediaVideo && content.GetInfo().MimeType == "image/gif" {
  1579. data, err = portal.convertGifToVideo(data)
  1580. if err != nil {
  1581. portal.log.Errorfln("Failed to convert gif to mp4 in %s: %v", eventID, err)
  1582. return nil
  1583. }
  1584. content.Info.MimeType = "video/mp4"
  1585. }
  1586. url, mediaKey, fileEncSHA256, fileSHA256, fileLength, err := sender.Conn.Upload(bytes.NewReader(data), mediaType)
  1587. if err != nil {
  1588. portal.log.Errorfln("Failed to upload media in %s: %v", eventID, err)
  1589. return nil
  1590. }
  1591. return &MediaUpload{
  1592. Caption: caption,
  1593. MentionedJIDs: mentionedJIDs,
  1594. URL: url,
  1595. MediaKey: mediaKey,
  1596. FileEncSHA256: fileEncSHA256,
  1597. FileSHA256: fileSHA256,
  1598. FileLength: fileLength,
  1599. Thumbnail: portal.downloadThumbnail(content, eventID),
  1600. }
  1601. }
  1602. type MediaUpload struct {
  1603. Caption string
  1604. MentionedJIDs []types.WhatsAppID
  1605. URL string
  1606. MediaKey []byte
  1607. FileEncSHA256 []byte
  1608. FileSHA256 []byte
  1609. FileLength uint64
  1610. Thumbnail []byte
  1611. }
  1612. func (portal *Portal) sendMatrixConnectionError(sender *User, eventID id.EventID) bool {
  1613. if !sender.HasSession() {
  1614. portal.log.Debugln("Ignoring event", eventID, "from", sender.MXID, "as user has no session")
  1615. return true
  1616. } else if !sender.IsConnected() {
  1617. portal.log.Debugln("Ignoring event", eventID, "from", sender.MXID, "as user is not connected")
  1618. inRoom := ""
  1619. if portal.IsPrivateChat() {
  1620. inRoom = " in your management room"
  1621. }
  1622. reconnect := fmt.Sprintf("Use `%s reconnect`%s to reconnect.", portal.bridge.Config.Bridge.CommandPrefix, inRoom)
  1623. if sender.IsLoginInProgress() {
  1624. reconnect = "You have a login attempt in progress, please wait."
  1625. }
  1626. msg := format.RenderMarkdown("\u26a0 You are not connected to WhatsApp, so your message was not bridged. "+reconnect, true, false)
  1627. msg.MsgType = event.MsgNotice
  1628. _, err := portal.sendMainIntentMessage(msg)
  1629. if err != nil {
  1630. portal.log.Errorln("Failed to send bridging failure message:", err)
  1631. }
  1632. return true
  1633. }
  1634. return false
  1635. }
  1636. func (portal *Portal) addRelaybotFormat(sender *User, content *event.MessageEventContent) bool {
  1637. member := portal.MainIntent().Member(portal.MXID, sender.MXID)
  1638. if len(member.Displayname) == 0 {
  1639. member.Displayname = string(sender.MXID)
  1640. }
  1641. if content.Format != event.FormatHTML {
  1642. content.FormattedBody = strings.Replace(html.EscapeString(content.Body), "\n", "<br/>", -1)
  1643. content.Format = event.FormatHTML
  1644. }
  1645. data, err := portal.bridge.Config.Bridge.Relaybot.FormatMessage(content, sender.MXID, member)
  1646. if err != nil {
  1647. portal.log.Errorln("Failed to apply relaybot format:", err)
  1648. }
  1649. content.FormattedBody = data
  1650. return true
  1651. }
  1652. func (portal *Portal) convertMatrixMessage(sender *User, evt *event.Event) (*waProto.WebMessageInfo, *User) {
  1653. content, ok := evt.Content.Parsed.(*event.MessageEventContent)
  1654. if !ok {
  1655. portal.log.Debugfln("Failed to handle event %s: unexpected parsed content type %T", evt.ID, evt.Content.Parsed)
  1656. return nil, sender
  1657. }
  1658. ts := uint64(evt.Timestamp / 1000)
  1659. status := waProto.WebMessageInfo_ERROR
  1660. fromMe := true
  1661. info := &waProto.WebMessageInfo{
  1662. Key: &waProto.MessageKey{
  1663. FromMe: &fromMe,
  1664. Id: makeMessageID(),
  1665. RemoteJid: &portal.Key.JID,
  1666. },
  1667. MessageTimestamp: &ts,
  1668. Message: &waProto.Message{},
  1669. Status: &status,
  1670. }
  1671. ctxInfo := &waProto.ContextInfo{}
  1672. replyToID := content.GetReplyTo()
  1673. if len(replyToID) > 0 {
  1674. content.RemoveReplyFallback()
  1675. msg := portal.bridge.DB.Message.GetByMXID(replyToID)
  1676. if msg != nil && msg.Content != nil {
  1677. ctxInfo.StanzaId = &msg.JID
  1678. ctxInfo.Participant = &msg.Sender
  1679. ctxInfo.QuotedMessage = msg.Content
  1680. }
  1681. }
  1682. relaybotFormatted := false
  1683. if sender.NeedsRelaybot(portal) {
  1684. if !portal.HasRelaybot() {
  1685. if sender.HasSession() {
  1686. portal.log.Debugln("Database says", sender.MXID, "not in chat and no relaybot, but trying to send anyway")
  1687. } else {
  1688. portal.log.Debugln("Ignoring message from", sender.MXID, "in chat with no relaybot")
  1689. return nil, sender
  1690. }
  1691. } else {
  1692. relaybotFormatted = portal.addRelaybotFormat(sender, content)
  1693. sender = portal.bridge.Relaybot
  1694. }
  1695. }
  1696. if evt.Type == event.EventSticker {
  1697. content.MsgType = event.MsgImage
  1698. } else if content.MsgType == event.MsgImage && content.GetInfo().MimeType == "image/gif" {
  1699. content.MsgType = event.MsgVideo
  1700. }
  1701. switch content.MsgType {
  1702. case event.MsgText, event.MsgEmote, event.MsgNotice:
  1703. text := content.Body
  1704. if content.Format == event.FormatHTML {
  1705. text, ctxInfo.MentionedJid = portal.bridge.Formatter.ParseMatrix(content.FormattedBody)
  1706. }
  1707. if content.MsgType == event.MsgEmote && !relaybotFormatted {
  1708. text = "/me " + text
  1709. }
  1710. if ctxInfo.StanzaId != nil || ctxInfo.MentionedJid != nil {
  1711. info.Message.ExtendedTextMessage = &waProto.ExtendedTextMessage{
  1712. Text: &text,
  1713. ContextInfo: ctxInfo,
  1714. }
  1715. } else {
  1716. info.Message.Conversation = &text
  1717. }
  1718. case event.MsgImage:
  1719. media := portal.preprocessMatrixMedia(sender, relaybotFormatted, content, evt.ID, whatsapp.MediaImage)
  1720. if media == nil {
  1721. return nil, sender
  1722. }
  1723. ctxInfo.MentionedJid = media.MentionedJIDs
  1724. info.Message.ImageMessage = &waProto.ImageMessage{
  1725. ContextInfo: ctxInfo,
  1726. Caption: &media.Caption,
  1727. JpegThumbnail: media.Thumbnail,
  1728. Url: &media.URL,
  1729. MediaKey: media.MediaKey,
  1730. Mimetype: &content.GetInfo().MimeType,
  1731. FileEncSha256: media.FileEncSHA256,
  1732. FileSha256: media.FileSHA256,
  1733. FileLength: &media.FileLength,
  1734. }
  1735. case event.MsgVideo:
  1736. gifPlayback := content.GetInfo().MimeType == "image/gif"
  1737. media := portal.preprocessMatrixMedia(sender, relaybotFormatted, content, evt.ID, whatsapp.MediaVideo)
  1738. if media == nil {
  1739. return nil, sender
  1740. }
  1741. duration := uint32(content.GetInfo().Duration)
  1742. ctxInfo.MentionedJid = media.MentionedJIDs
  1743. info.Message.VideoMessage = &waProto.VideoMessage{
  1744. ContextInfo: ctxInfo,
  1745. Caption: &media.Caption,
  1746. JpegThumbnail: media.Thumbnail,
  1747. Url: &media.URL,
  1748. MediaKey: media.MediaKey,
  1749. Mimetype: &content.GetInfo().MimeType,
  1750. GifPlayback: &gifPlayback,
  1751. Seconds: &duration,
  1752. FileEncSha256: media.FileEncSHA256,
  1753. FileSha256: media.FileSHA256,
  1754. FileLength: &media.FileLength,
  1755. }
  1756. case event.MsgAudio:
  1757. media := portal.preprocessMatrixMedia(sender, relaybotFormatted, content, evt.ID, whatsapp.MediaAudio)
  1758. if media == nil {
  1759. return nil, sender
  1760. }
  1761. duration := uint32(content.GetInfo().Duration)
  1762. info.Message.AudioMessage = &waProto.AudioMessage{
  1763. ContextInfo: ctxInfo,
  1764. Url: &media.URL,
  1765. MediaKey: media.MediaKey,
  1766. Mimetype: &content.GetInfo().MimeType,
  1767. Seconds: &duration,
  1768. FileEncSha256: media.FileEncSHA256,
  1769. FileSha256: media.FileSHA256,
  1770. FileLength: &media.FileLength,
  1771. }
  1772. case event.MsgFile:
  1773. media := portal.preprocessMatrixMedia(sender, relaybotFormatted, content, evt.ID, whatsapp.MediaDocument)
  1774. if media == nil {
  1775. return nil, sender
  1776. }
  1777. info.Message.DocumentMessage = &waProto.DocumentMessage{
  1778. ContextInfo: ctxInfo,
  1779. Url: &media.URL,
  1780. Title: &content.Body,
  1781. FileName: &content.Body,
  1782. MediaKey: media.MediaKey,
  1783. Mimetype: &content.GetInfo().MimeType,
  1784. FileEncSha256: media.FileEncSHA256,
  1785. FileSha256: media.FileSHA256,
  1786. FileLength: &media.FileLength,
  1787. }
  1788. default:
  1789. portal.log.Debugln("Unhandled Matrix event %s: unknown msgtype %s", evt.ID, content.MsgType)
  1790. return nil, sender
  1791. }
  1792. return info, sender
  1793. }
  1794. func (portal *Portal) wasMessageSent(sender *User, id string) bool {
  1795. _, err := sender.Conn.LoadMessagesAfter(portal.Key.JID, id, true, 0)
  1796. if err != nil {
  1797. if err != whatsapp.ErrServerRespondedWith404 {
  1798. portal.log.Warnfln("Failed to check if message was bridged without response: %v", err)
  1799. }
  1800. return false
  1801. }
  1802. return true
  1803. }
  1804. func (portal *Portal) sendErrorMessage(message string) id.EventID {
  1805. resp, err := portal.sendMainIntentMessage(event.MessageEventContent{
  1806. MsgType: event.MsgNotice,
  1807. Body: fmt.Sprintf("\u26a0 Your message may not have been bridged: %v", message),
  1808. })
  1809. if err != nil {
  1810. portal.log.Warnfln("Failed to send bridging error message:", err)
  1811. return ""
  1812. }
  1813. return resp.EventID
  1814. }
  1815. func (portal *Portal) sendDeliveryReceipt(eventID id.EventID) {
  1816. if portal.bridge.Config.Bridge.DeliveryReceipts {
  1817. err := portal.bridge.Bot.MarkRead(portal.MXID, eventID)
  1818. if err != nil {
  1819. portal.log.Debugfln("Failed to send delivery receipt for %s: %v", eventID, err)
  1820. }
  1821. }
  1822. }
  1823. var timeout = errors.New("message sending timed out")
  1824. func (portal *Portal) HandleMatrixMessage(sender *User, evt *event.Event) {
  1825. if !portal.HasRelaybot() && (
  1826. (portal.IsPrivateChat() && sender.JID != portal.Key.Receiver) ||
  1827. portal.sendMatrixConnectionError(sender, evt.ID)) {
  1828. return
  1829. }
  1830. portal.log.Debugfln("Received event %s", evt.ID)
  1831. info, sender := portal.convertMatrixMessage(sender, evt)
  1832. if info == nil {
  1833. return
  1834. }
  1835. portal.markHandled(sender, info, evt.ID)
  1836. portal.log.Debugln("Sending event", evt.ID, "to WhatsApp", info.Key.GetId())
  1837. portal.sendRaw(sender, evt, info, false)
  1838. }
  1839. func (portal *Portal) sendRaw(sender *User, evt *event.Event, info *waProto.WebMessageInfo, isRetry bool) {
  1840. errChan := make(chan error, 1)
  1841. go sender.Conn.SendRaw(info, errChan)
  1842. var err error
  1843. var errorEventID id.EventID
  1844. select {
  1845. case err = <-errChan:
  1846. var statusResp whatsapp.StatusResponse
  1847. if !isRetry && errors.As(err, &statusResp) && statusResp.Status == 599 {
  1848. portal.log.Debugfln("599 status response sending %s to WhatsApp (%+v), retrying...", evt.ID, statusResp)
  1849. errorEventID = portal.sendErrorMessage(fmt.Sprintf("%v. The bridge will retry in 5 seconds.", err))
  1850. time.Sleep(5 * time.Second)
  1851. portal.sendRaw(sender, evt, info, true)
  1852. }
  1853. case <-time.After(time.Duration(portal.bridge.Config.Bridge.ConnectionTimeout) * time.Second):
  1854. if portal.bridge.Config.Bridge.FetchMessageOnTimeout && portal.wasMessageSent(sender, info.Key.GetId()) {
  1855. portal.log.Debugln("Matrix event %s was bridged, but response didn't arrive within timeout")
  1856. portal.sendDeliveryReceipt(evt.ID)
  1857. } else {
  1858. portal.log.Warnfln("Response when bridging Matrix event %s is taking long to arrive", evt.ID)
  1859. errorEventID = portal.sendErrorMessage(timeout.Error())
  1860. }
  1861. err = <-errChan
  1862. }
  1863. if err != nil {
  1864. portal.log.Errorfln("Error handling Matrix event %s: %v", evt.ID, err)
  1865. var statusResp whatsapp.StatusResponse
  1866. if errors.As(err, &statusResp) && statusResp.Status == 599 {
  1867. portal.log.Debugfln("599 status response data: %+v", statusResp)
  1868. }
  1869. portal.sendErrorMessage(err.Error())
  1870. } else {
  1871. portal.log.Debugfln("Handled Matrix event %s", evt.ID)
  1872. portal.sendDeliveryReceipt(evt.ID)
  1873. }
  1874. if errorEventID != "" {
  1875. _, err = portal.MainIntent().RedactEvent(portal.MXID, errorEventID)
  1876. if err != nil {
  1877. portal.log.Warnfln("Failed to redact timeout warning message %s: %v", errorEventID, err)
  1878. }
  1879. }
  1880. }
  1881. func (portal *Portal) HandleMatrixRedaction(sender *User, evt *event.Event) {
  1882. if portal.IsPrivateChat() && sender.JID != portal.Key.Receiver {
  1883. return
  1884. }
  1885. msg := portal.bridge.DB.Message.GetByMXID(evt.Redacts)
  1886. if msg == nil || msg.Sender != sender.JID {
  1887. return
  1888. }
  1889. ts := uint64(evt.Timestamp / 1000)
  1890. status := waProto.WebMessageInfo_PENDING
  1891. protoMsgType := waProto.ProtocolMessage_REVOKE
  1892. fromMe := true
  1893. info := &waProto.WebMessageInfo{
  1894. Key: &waProto.MessageKey{
  1895. FromMe: &fromMe,
  1896. Id: makeMessageID(),
  1897. RemoteJid: &portal.Key.JID,
  1898. },
  1899. MessageTimestamp: &ts,
  1900. Message: &waProto.Message{
  1901. ProtocolMessage: &waProto.ProtocolMessage{
  1902. Type: &protoMsgType,
  1903. Key: &waProto.MessageKey{
  1904. FromMe: &fromMe,
  1905. Id: &msg.JID,
  1906. RemoteJid: &portal.Key.JID,
  1907. },
  1908. },
  1909. },
  1910. Status: &status,
  1911. }
  1912. errChan := make(chan error, 1)
  1913. go sender.Conn.SendRaw(info, errChan)
  1914. var err error
  1915. select {
  1916. case err = <-errChan:
  1917. case <-time.After(time.Duration(portal.bridge.Config.Bridge.ConnectionTimeout) * time.Second):
  1918. portal.log.Warnfln("Response when bridging Matrix redaction %s is taking long to arrive", evt.ID)
  1919. err = <-errChan
  1920. }
  1921. if err != nil {
  1922. portal.log.Errorfln("Error handling Matrix redaction %s: %v", evt.ID, err)
  1923. } else {
  1924. portal.log.Debugln("Handled Matrix redaction %s of %s", evt.ID, evt.Redacts)
  1925. portal.sendDeliveryReceipt(evt.ID)
  1926. }
  1927. }
  1928. func (portal *Portal) Delete() {
  1929. portal.Portal.Delete()
  1930. portal.bridge.portalsLock.Lock()
  1931. delete(portal.bridge.portalsByJID, portal.Key)
  1932. if len(portal.MXID) > 0 {
  1933. delete(portal.bridge.portalsByMXID, portal.MXID)
  1934. }
  1935. portal.bridge.portalsLock.Unlock()
  1936. }
  1937. func (portal *Portal) GetMatrixUsers() ([]id.UserID, error) {
  1938. members, err := portal.MainIntent().JoinedMembers(portal.MXID)
  1939. if err != nil {
  1940. return nil, fmt.Errorf("failed to get member list: %w", err)
  1941. }
  1942. var users []id.UserID
  1943. for userID := range members.Joined {
  1944. _, isPuppet := portal.bridge.ParsePuppetMXID(userID)
  1945. if !isPuppet && userID != portal.bridge.Bot.UserID {
  1946. users = append(users, userID)
  1947. }
  1948. }
  1949. return users, nil
  1950. }
  1951. func (portal *Portal) CleanupIfEmpty() {
  1952. users, err := portal.GetMatrixUsers()
  1953. if err != nil {
  1954. portal.log.Errorfln("Failed to get Matrix user list to determine if portal needs to be cleaned up: %v", err)
  1955. return
  1956. }
  1957. if len(users) == 0 {
  1958. portal.log.Infoln("Room seems to be empty, cleaning up...")
  1959. portal.Delete()
  1960. portal.Cleanup(false)
  1961. }
  1962. }
  1963. func (portal *Portal) Cleanup(puppetsOnly bool) {
  1964. if len(portal.MXID) == 0 {
  1965. return
  1966. }
  1967. if portal.IsPrivateChat() {
  1968. _, err := portal.MainIntent().LeaveRoom(portal.MXID)
  1969. if err != nil {
  1970. portal.log.Warnln("Failed to leave private chat portal with main intent:", err)
  1971. }
  1972. return
  1973. }
  1974. intent := portal.MainIntent()
  1975. members, err := intent.JoinedMembers(portal.MXID)
  1976. if err != nil {
  1977. portal.log.Errorln("Failed to get portal members for cleanup:", err)
  1978. return
  1979. }
  1980. for member := range members.Joined {
  1981. if member == intent.UserID {
  1982. continue
  1983. }
  1984. puppet := portal.bridge.GetPuppetByMXID(member)
  1985. if puppet != nil {
  1986. _, err = puppet.DefaultIntent().LeaveRoom(portal.MXID)
  1987. if err != nil {
  1988. portal.log.Errorln("Error leaving as puppet while cleaning up portal:", err)
  1989. }
  1990. } else if !puppetsOnly {
  1991. _, err = intent.KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: member, Reason: "Deleting portal"})
  1992. if err != nil {
  1993. portal.log.Errorln("Error kicking user while cleaning up portal:", err)
  1994. }
  1995. }
  1996. }
  1997. _, err = intent.LeaveRoom(portal.MXID)
  1998. if err != nil {
  1999. portal.log.Errorln("Error leaving with main intent while cleaning up portal:", err)
  2000. }
  2001. }
  2002. func (portal *Portal) HandleMatrixLeave(sender *User) {
  2003. if portal.IsPrivateChat() {
  2004. portal.log.Debugln("User left private chat portal, cleaning up and deleting...")
  2005. portal.Delete()
  2006. portal.Cleanup(false)
  2007. return
  2008. } else {
  2009. // TODO should we somehow deduplicate this call if this leave was sent by the bridge?
  2010. resp, err := sender.Conn.LeaveGroup(portal.Key.JID)
  2011. if err != nil {
  2012. portal.log.Errorfln("Failed to leave group as %s: %v", sender.MXID, err)
  2013. return
  2014. }
  2015. portal.log.Infoln("Leave response:", <-resp)
  2016. portal.CleanupIfEmpty()
  2017. }
  2018. }
  2019. func (portal *Portal) HandleMatrixKick(sender *User, evt *event.Event) {
  2020. puppet := portal.bridge.GetPuppetByMXID(id.UserID(evt.GetStateKey()))
  2021. if puppet != nil {
  2022. resp, err := sender.Conn.RemoveMember(portal.Key.JID, []string{puppet.JID})
  2023. if err != nil {
  2024. portal.log.Errorfln("Failed to kick %s from group as %s: %v", puppet.JID, sender.MXID, err)
  2025. return
  2026. }
  2027. portal.log.Infoln("Kick %s response: %s", puppet.JID, <-resp)
  2028. }
  2029. }
  2030. func (portal *Portal) HandleMatrixInvite(sender *User, evt *event.Event) {
  2031. puppet := portal.bridge.GetPuppetByMXID(id.UserID(evt.GetStateKey()))
  2032. if puppet != nil {
  2033. resp, err := sender.Conn.AddMember(portal.Key.JID, []string{puppet.JID})
  2034. if err != nil {
  2035. portal.log.Errorfln("Failed to add %s to group as %s: %v", puppet.JID, sender.MXID, err)
  2036. return
  2037. }
  2038. portal.log.Infoln("Add %s response: %s", puppet.JID, <-resp)
  2039. }
  2040. }