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bridge.go
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bridge.go
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// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
// Copyright (C) 2023 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package config
import (
"errors"
"fmt"
"strings"
"text/template"
"time"
"go.mau.fi/whatsmeow/types"
"maunium.net/go/mautrix/bridge/bridgeconfig"
"maunium.net/go/mautrix/event"
"maunium.net/go/mautrix/id"
)
type DeferredConfig struct {
StartDaysAgo int `yaml:"start_days_ago"`
MaxBatchEvents int `yaml:"max_batch_events"`
BatchDelay int `yaml:"batch_delay"`
}
type MediaRequestMethod string
const (
MediaRequestMethodImmediate MediaRequestMethod = "immediate"
MediaRequestMethodLocalTime = "local_time"
)
type BridgeConfig struct {
UsernameTemplate string `yaml:"username_template"`
DisplaynameTemplate string `yaml:"displayname_template"`
PersonalFilteringSpaces bool `yaml:"personal_filtering_spaces"`
DeliveryReceipts bool `yaml:"delivery_receipts"`
MessageStatusEvents bool `yaml:"message_status_events"`
MessageErrorNotices bool `yaml:"message_error_notices"`
PortalMessageBuffer int `yaml:"portal_message_buffer"`
CallStartNotices bool `yaml:"call_start_notices"`
IdentityChangeNotices bool `yaml:"identity_change_notices"`
HistorySync struct {
Backfill bool `yaml:"backfill"`
RequestFullSync bool `yaml:"request_full_sync"`
FullSyncConfig struct {
DaysLimit uint32 `yaml:"days_limit"`
SizeLimit uint32 `yaml:"size_mb_limit"`
StorageQuota uint32 `yaml:"storage_quota_mb"`
}
MaxInitialConversations int `yaml:"max_initial_conversations"`
MessageCount int `yaml:"message_count"`
UnreadHoursThreshold int `yaml:"unread_hours_threshold"`
Immediate struct {
WorkerCount int `yaml:"worker_count"`
MaxEvents int `yaml:"max_events"`
} `yaml:"immediate"`
MediaRequests struct {
AutoRequestMedia bool `yaml:"auto_request_media"`
RequestMethod MediaRequestMethod `yaml:"request_method"`
RequestLocalTime int `yaml:"request_local_time"`
MaxAsyncHandle int64 `yaml:"max_async_handle"`
} `yaml:"media_requests"`
Deferred []DeferredConfig `yaml:"deferred"`
} `yaml:"history_sync"`
UserAvatarSync bool `yaml:"user_avatar_sync"`
BridgeMatrixLeave bool `yaml:"bridge_matrix_leave"`
SyncDirectChatList bool `yaml:"sync_direct_chat_list"`
SyncManualMarkedUnread bool `yaml:"sync_manual_marked_unread"`
DefaultBridgePresence bool `yaml:"default_bridge_presence"`
SendPresenceOnTyping bool `yaml:"send_presence_on_typing"`
ForceActiveDeliveryReceipts bool `yaml:"force_active_delivery_receipts"`
DoublePuppetConfig bridgeconfig.DoublePuppetConfig `yaml:",inline"`
PrivateChatPortalMeta string `yaml:"private_chat_portal_meta"`
ParallelMemberSync bool `yaml:"parallel_member_sync"`
BridgeNotices bool `yaml:"bridge_notices"`
ResendBridgeInfo bool `yaml:"resend_bridge_info"`
MuteBridging bool `yaml:"mute_bridging"`
ArchiveTag string `yaml:"archive_tag"`
PinnedTag string `yaml:"pinned_tag"`
TagOnlyOnCreate bool `yaml:"tag_only_on_create"`
MarkReadOnlyOnCreate bool `yaml:"mark_read_only_on_create"`
EnableStatusBroadcast bool `yaml:"enable_status_broadcast"`
MuteStatusBroadcast bool `yaml:"mute_status_broadcast"`
StatusBroadcastTag string `yaml:"status_broadcast_tag"`
WhatsappThumbnail bool `yaml:"whatsapp_thumbnail"`
AllowUserInvite bool `yaml:"allow_user_invite"`
FederateRooms bool `yaml:"federate_rooms"`
URLPreviews bool `yaml:"url_previews"`
CaptionInMessage bool `yaml:"caption_in_message"`
BeeperGalleries bool `yaml:"beeper_galleries"`
ExtEvPolls bool `yaml:"extev_polls"`
CrossRoomReplies bool `yaml:"cross_room_replies"`
DisableReplyFallbacks bool `yaml:"disable_reply_fallbacks"`
MessageHandlingTimeout struct {
ErrorAfterStr string `yaml:"error_after"`
DeadlineStr string `yaml:"deadline"`
ErrorAfter time.Duration `yaml:"-"`
Deadline time.Duration `yaml:"-"`
} `yaml:"message_handling_timeout"`
DisableStatusBroadcastSend bool `yaml:"disable_status_broadcast_send"`
DisableBridgeAlerts bool `yaml:"disable_bridge_alerts"`
CrashOnStreamReplaced bool `yaml:"crash_on_stream_replaced"`
CommandPrefix string `yaml:"command_prefix"`
ManagementRoomText bridgeconfig.ManagementRoomTexts `yaml:"management_room_text"`
Encryption bridgeconfig.EncryptionConfig `yaml:"encryption"`
Provisioning struct {
Prefix string `yaml:"prefix"`
SharedSecret string `yaml:"shared_secret"`
DebugEndpoints bool `yaml:"debug_endpoints"`
} `yaml:"provisioning"`
Permissions bridgeconfig.PermissionConfig `yaml:"permissions"`
Relay RelaybotConfig `yaml:"relay"`
ParsedUsernameTemplate *template.Template `yaml:"-"`
displaynameTemplate *template.Template `yaml:"-"`
}
func (bc BridgeConfig) GetDoublePuppetConfig() bridgeconfig.DoublePuppetConfig {
return bc.DoublePuppetConfig
}
func (bc BridgeConfig) GetEncryptionConfig() bridgeconfig.EncryptionConfig {
return bc.Encryption
}
func (bc BridgeConfig) EnableMessageStatusEvents() bool {
return bc.MessageStatusEvents
}
func (bc BridgeConfig) EnableMessageErrorNotices() bool {
return bc.MessageErrorNotices
}
func (bc BridgeConfig) GetCommandPrefix() string {
return bc.CommandPrefix
}
func (bc BridgeConfig) GetManagementRoomTexts() bridgeconfig.ManagementRoomTexts {
return bc.ManagementRoomText
}
func (bc BridgeConfig) GetResendBridgeInfo() bool {
return bc.ResendBridgeInfo
}
func boolToInt(val bool) int {
if val {
return 1
}
return 0
}
func (bc BridgeConfig) Validate() error {
_, hasWildcard := bc.Permissions["*"]
_, hasExampleDomain := bc.Permissions["example.com"]
_, hasExampleUser := bc.Permissions["@admin:example.com"]
exampleLen := boolToInt(hasWildcard) + boolToInt(hasExampleUser) + boolToInt(hasExampleDomain)
if len(bc.Permissions) <= exampleLen {
return errors.New("bridge.permissions not configured")
}
return nil
}
type umBridgeConfig BridgeConfig
func (bc *BridgeConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
err := unmarshal((*umBridgeConfig)(bc))
if err != nil {
return err
}
bc.ParsedUsernameTemplate, err = template.New("username").Parse(bc.UsernameTemplate)
if err != nil {
return err
} else if !strings.Contains(bc.FormatUsername("1234567890"), "1234567890") {
return fmt.Errorf("username template is missing user ID placeholder")
}
bc.displaynameTemplate, err = template.New("displayname").Parse(bc.DisplaynameTemplate)
if err != nil {
return err
}
if bc.MessageHandlingTimeout.ErrorAfterStr != "" {
bc.MessageHandlingTimeout.ErrorAfter, err = time.ParseDuration(bc.MessageHandlingTimeout.ErrorAfterStr)
if err != nil {
return err
}
}
if bc.MessageHandlingTimeout.DeadlineStr != "" {
bc.MessageHandlingTimeout.Deadline, err = time.ParseDuration(bc.MessageHandlingTimeout.DeadlineStr)
if err != nil {
return err
}
}
return nil
}
type UsernameTemplateArgs struct {
UserID id.UserID
}
type legacyContactInfo struct {
types.ContactInfo
Phone string
Notify string
VName string
Name string
Short string
JID string
}
const (
NameQualityPush = 3
NameQualityContact = 2
NameQualityPhone = 1
)
func (bc BridgeConfig) FormatDisplayname(jid types.JID, contact types.ContactInfo) (string, int8) {
var buf strings.Builder
_ = bc.displaynameTemplate.Execute(&buf, legacyContactInfo{
ContactInfo: contact,
Notify: contact.PushName,
VName: contact.BusinessName,
Name: contact.FullName,
Short: contact.FirstName,
Phone: "+" + jid.User,
JID: "+" + jid.User,
})
var quality int8
switch {
case len(contact.PushName) > 0 || len(contact.BusinessName) > 0:
quality = NameQualityPush
case len(contact.FullName) > 0 || len(contact.FirstName) > 0:
quality = NameQualityContact
default:
quality = NameQualityPhone
}
return buf.String(), quality
}
func (bc BridgeConfig) FormatUsername(username string) string {
var buf strings.Builder
_ = bc.ParsedUsernameTemplate.Execute(&buf, username)
return buf.String()
}
type RelaybotConfig struct {
Enabled bool `yaml:"enabled"`
AdminOnly bool `yaml:"admin_only"`
MessageFormats map[event.MessageType]string `yaml:"message_formats"`
messageTemplates *template.Template `yaml:"-"`
}
type umRelaybotConfig RelaybotConfig
func (rc *RelaybotConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
err := unmarshal((*umRelaybotConfig)(rc))
if err != nil {
return err
}
rc.messageTemplates = template.New("messageTemplates")
for key, format := range rc.MessageFormats {
_, err := rc.messageTemplates.New(string(key)).Parse(format)
if err != nil {
return err
}
}
return nil
}
type Sender struct {
UserID string
event.MemberEventContent
}
type formatData struct {
Sender Sender
Message string
Content *event.MessageEventContent
}
func (rc *RelaybotConfig) FormatMessage(content *event.MessageEventContent, sender id.UserID, member event.MemberEventContent) (string, error) {
if len(member.Displayname) == 0 {
member.Displayname = sender.String()
}
member.Displayname = template.HTMLEscapeString(member.Displayname)
var output strings.Builder
err := rc.messageTemplates.ExecuteTemplate(&output, string(content.MsgType), formatData{
Sender: Sender{
UserID: template.HTMLEscapeString(sender.String()),
MemberEventContent: member,
},
Content: content,
Message: content.FormattedBody,
})
return output.String(), err
}