mirror of
https://github.com/tulir/mautrix-whatsapp
synced 2024-12-13 17:13:11 +01:00
Encrypt media from WhatsApp when sending to encrypted portal
This commit is contained in:
Tulir Asokan
parent
210b1caf65
commit
7c799f1faa
5 changed files with 76 additions and 23 deletions
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@ -63,6 +63,8 @@ type BridgeConfig struct {
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InviteOwnPuppetForBackfilling bool `yaml:"invite_own_puppet_for_backfilling"`
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PrivateChatPortalMeta bool `yaml:"private_chat_portal_meta"`
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WhatsappThumbnail bool `yaml:"whatsapp_thumbnail"`
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AllowUserInvite bool `yaml:"allow_user_invite"`
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CommandPrefix string `yaml:"command_prefix"`
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@ -142,6 +142,10 @@ bridge:
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# but causes room avatar/name bugs.
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private_chat_portal_meta: false
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# Whether or not thumbnails from WhatsApp should be sent.
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# They're disabled by default due to very low resolution.
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whatsapp_thumbnail: false
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# Allow invite permission for user. User can invite any bots to room with whatsapp
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# users (private chat and groups)
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allow_user_invite: false
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2
go.mod
2
go.mod
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@ -15,7 +15,7 @@ require (
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gopkg.in/yaml.v2 v2.3.0
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maunium.net/go/mauflag v1.0.0
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maunium.net/go/maulogger/v2 v2.1.1
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maunium.net/go/mautrix v0.5.0-rc.2
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maunium.net/go/mautrix v0.5.0-rc.3
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)
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replace github.com/Rhymen/go-whatsapp => github.com/tulir/go-whatsapp v0.2.8
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2
go.sum
2
go.sum
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@ -67,3 +67,5 @@ maunium.net/go/mautrix v0.4.11 h1:cONVoAkD7AOvtzEMvuuq79Y+2vRrNKfpKZoR8HdyPAw=
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maunium.net/go/mautrix v0.4.11/go.mod h1:LnkFnB1yjCbb8V+upoEHDGvI/F38NHSTWYCe2RRJgSY=
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maunium.net/go/mautrix v0.5.0-rc.2 h1:ohx+dprvMS6Txm+suMx5pbjl0rjDpfftFxgXhx/+Usc=
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maunium.net/go/mautrix v0.5.0-rc.2/go.mod h1:LnkFnB1yjCbb8V+upoEHDGvI/F38NHSTWYCe2RRJgSY=
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maunium.net/go/mautrix v0.5.0-rc.3 h1:ltb6mF6pck1YzEkuC13V4UtSGDIxaq+XqzIdSg7vgMI=
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maunium.net/go/mautrix v0.5.0-rc.3/go.mod h1:LnkFnB1yjCbb8V+upoEHDGvI/F38NHSTWYCe2RRJgSY=
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89
portal.go
89
portal.go
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@ -38,6 +38,8 @@ import (
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"github.com/pkg/errors"
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log "maunium.net/go/maulogger/v2"
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"maunium.net/go/mautrix/crypto/attachment"
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"github.com/Rhymen/go-whatsapp"
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waProto "github.com/Rhymen/go-whatsapp/binary/proto"
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@ -197,15 +199,15 @@ func (portal *Portal) handleMessage(msg PortalMessage) {
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case whatsapp.TextMessage:
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portal.HandleTextMessage(msg.source, data)
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case whatsapp.ImageMessage:
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portal.HandleMediaMessage(msg.source, data.Download, data.Thumbnail, data.Info, data.ContextInfo, data.Type, data.Caption, false)
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portal.HandleMediaMessage(msg.source, data.Download, data.Thumbnail, data.Info, data.ContextInfo, data.Type, data.Caption, 0, false)
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case whatsapp.StickerMessage:
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portal.HandleMediaMessage(msg.source, data.Download, nil, data.Info, data.ContextInfo, data.Type, "", true)
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portal.HandleMediaMessage(msg.source, data.Download, nil, data.Info, data.ContextInfo, data.Type, "", 0, true)
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case whatsapp.VideoMessage:
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portal.HandleMediaMessage(msg.source, data.Download, data.Thumbnail, data.Info, data.ContextInfo, data.Type, data.Caption, false)
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portal.HandleMediaMessage(msg.source, data.Download, data.Thumbnail, data.Info, data.ContextInfo, data.Type, data.Caption, data.Length, false)
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case whatsapp.AudioMessage:
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portal.HandleMediaMessage(msg.source, data.Download, nil, data.Info, data.ContextInfo, data.Type, "", false)
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portal.HandleMediaMessage(msg.source, data.Download, nil, data.Info, data.ContextInfo, data.Type, "", data.Length, false)
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case whatsapp.DocumentMessage:
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portal.HandleMediaMessage(msg.source, data.Download, data.Thumbnail, data.Info, data.ContextInfo, data.Type, data.Title, false)
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portal.HandleMediaMessage(msg.source, data.Download, data.Thumbnail, data.Info, data.ContextInfo, data.Type, data.Title, 0, false)
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case whatsapp.ContactMessage:
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portal.HandleContactMessage(msg.source, data)
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case whatsapp.LocationMessage:
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@ -1154,8 +1156,11 @@ func (portal *Portal) HandleContactMessage(source *User, message whatsapp.Contac
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}
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fileName := fmt.Sprintf("%s.vcf", message.DisplayName)
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data := []byte(message.Vcard)
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mimeType := "text/vcard"
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data, uploadMimeType, file := portal.encryptFile(data, mimeType)
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uploadResp, err := intent.UploadBytesWithName([]byte(message.Vcard), "text/vcard", fileName)
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uploadResp, err := intent.UploadBytesWithName(data, uploadMimeType, fileName)
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if err != nil {
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portal.log.Errorfln("Failed to upload vcard of %s: %v", message.DisplayName, err)
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return
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@ -1164,12 +1169,17 @@ func (portal *Portal) HandleContactMessage(source *User, message whatsapp.Contac
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content := &event.MessageEventContent{
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Body: fileName,
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MsgType: event.MsgFile,
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URL: uploadResp.ContentURI.CUString(),
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File: file,
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Info: &event.FileInfo{
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MimeType: "text/vcard",
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MimeType: mimeType,
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Size: len(message.Vcard),
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},
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}
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if content.File != nil {
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content.File.URL = uploadResp.ContentURI.CUString()
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} else {
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content.URL = uploadResp.ContentURI.CUString()
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}
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portal.SetReply(content, message.ContextInfo)
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@ -1195,7 +1205,20 @@ func (portal *Portal) sendMediaBridgeFailure(source *User, intent *appservice.In
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}
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}
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func (portal *Portal) HandleMediaMessage(source *User, download func() ([]byte, error), thumbnail []byte, info whatsapp.MessageInfo, context whatsapp.ContextInfo, mimeType, caption string, sendAsSticker bool) {
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func (portal *Portal) encryptFile(data []byte, mimeType string) ([]byte, string, *event.EncryptedFileInfo) {
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if !portal.Encrypted {
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return data, mimeType, nil
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}
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file := &event.EncryptedFileInfo{
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EncryptedFile: *attachment.NewEncryptedFile(),
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URL: "",
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}
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return file.Encrypt(data), "application/octet-stream", file
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}
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func (portal *Portal) HandleMediaMessage(source *User, download func() ([]byte, error), thumbnail []byte, info whatsapp.MessageInfo, context whatsapp.ContextInfo, mimeType, caption string, length uint32, sendAsSticker bool) {
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intent := portal.startHandling(source, info)
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if intent == nil {
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return
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@ -1237,7 +1260,15 @@ func (portal *Portal) HandleMediaMessage(source *User, download func() ([]byte,
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mimeType = "image/png"
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}
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uploaded, err := intent.UploadBytes(data, mimeType)
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var width, height int
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if strings.HasPrefix(mimeType, "image/") {
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cfg, _, _ := image.DecodeConfig(bytes.NewReader(data))
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width, height = cfg.Width, cfg.Height
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}
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data, uploadMimeType, file := portal.encryptFile(data, mimeType)
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uploaded, err := intent.UploadBytes(data, uploadMimeType)
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if err != nil {
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portal.log.Errorfln("Failed to upload media for %s: %v", err)
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return
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@ -1251,24 +1282,41 @@ func (portal *Portal) HandleMediaMessage(source *User, download func() ([]byte,
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content := &event.MessageEventContent{
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Body: fileName,
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URL: uploaded.ContentURI.CUString(),
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File: file,
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Info: &event.FileInfo{
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Size: len(data),
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MimeType: mimeType,
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Width: width,
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Height: height,
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Duration: int(length),
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},
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}
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if content.File != nil {
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content.File.URL = uploaded.ContentURI.CUString()
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} else {
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content.URL = uploaded.ContentURI.CUString()
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}
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portal.SetReply(content, context)
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if thumbnail != nil {
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if thumbnail != nil && portal.bridge.Config.Bridge.WhatsappThumbnail {
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thumbnailMime := http.DetectContentType(thumbnail)
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uploadedThumbnail, _ := intent.UploadBytes(thumbnail, thumbnailMime)
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if uploadedThumbnail != nil {
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content.Info.ThumbnailURL = uploadedThumbnail.ContentURI.CUString()
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cfg, _, _ := image.DecodeConfig(bytes.NewReader(data))
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thumbnailCfg, _, _ := image.DecodeConfig(bytes.NewReader(thumbnail))
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thumbnailSize := len(thumbnail)
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thumbnail, thumbnailUploadMime, thumbnailFile := portal.encryptFile(thumbnail, thumbnailMime)
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uploadedThumbnail, err := intent.UploadBytes(thumbnail, thumbnailUploadMime)
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if err != nil {
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portal.log.Warnfln("Failed to upload thumbnail for %s: %v", info.Id, err)
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} else if uploadedThumbnail != nil {
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if thumbnailFile != nil {
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thumbnailFile.URL = uploadedThumbnail.ContentURI.CUString()
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content.Info.ThumbnailFile = thumbnailFile
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} else {
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content.Info.ThumbnailURL = uploadedThumbnail.ContentURI.CUString()
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}
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content.Info.ThumbnailInfo = &event.FileInfo{
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Size: len(thumbnail),
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Width: cfg.Width,
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Height: cfg.Height,
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Size: thumbnailSize,
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Width: thumbnailCfg.Width,
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Height: thumbnailCfg.Height,
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MimeType: thumbnailMime,
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}
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}
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@ -1279,9 +1327,6 @@ func (portal *Portal) HandleMediaMessage(source *User, download func() ([]byte,
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if !sendAsSticker {
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content.MsgType = event.MsgImage
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}
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cfg, _, _ := image.DecodeConfig(bytes.NewReader(data))
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content.Info.Width = cfg.Width
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content.Info.Height = cfg.Height
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case "video":
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content.MsgType = event.MsgVideo
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case "audio":
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