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Copy pathgroup.go
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1080 lines (1021 loc) · 35.8 KB
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// Copyright (c) 2021 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package whatsmeow
import (
"context"
"errors"
"fmt"
"strings"
waBinary "go.mau.fi/whatsmeow/binary"
"go.mau.fi/whatsmeow/store"
"go.mau.fi/whatsmeow/types"
"go.mau.fi/whatsmeow/types/events"
)
const InviteLinkPrefix = "https://chat.whatsapp.com/"
func (cli *Client) sendGroupIQ(ctx context.Context, iqType infoQueryType, jid types.JID, content waBinary.Node) (*waBinary.Node, error) {
return cli.sendIQ(ctx, infoQuery{
Namespace: "w:g2",
Type: iqType,
To: jid,
Content: []waBinary.Node{content},
})
}
// ReqCreateGroup contains the request data for CreateGroup.
type ReqCreateGroup struct {
// Group names are limited to 25 characters. A longer group name will cause a 406 not acceptable error.
Name string
// You don't need to include your own JID in the participants array, the WhatsApp servers will add it implicitly.
Participants []types.JID
// A create key can be provided to deduplicate the group create notification that will be triggered
// when the group is created. If provided, the JoinedGroup event will contain the same key.
CreateKey types.MessageID
types.GroupEphemeral
types.GroupAnnounce
types.GroupLocked
types.GroupMembershipApprovalMode
// Set IsParent to true to create a community instead of a normal group.
// When creating a community, the linked announcement group will be created automatically by the server.
types.GroupParent
// Set LinkedParentJID to create a group inside a community.
types.GroupLinkedParent
}
// CreateGroup creates a group on WhatsApp with the given name and participants.
//
// See ReqCreateGroup for parameters.
func (cli *Client) CreateGroup(ctx context.Context, req ReqCreateGroup) (*types.GroupInfo, error) {
participantNodes := make([]waBinary.Node, len(req.Participants), len(req.Participants)+1)
for i, participant := range req.Participants {
participantNodes[i] = waBinary.Node{
Tag: "participant",
Attrs: waBinary.Attrs{"jid": participant},
}
token, err := cli.ensureTCToken(ctx, participant)
if err != nil {
return nil, fmt.Errorf("failed to get privacy token for participant %s: %v", participant, err)
} else if len(token) > 0 {
participantNodes[i].Content = []waBinary.Node{{
Tag: "privacy",
Content: token,
}}
}
}
if req.CreateKey == "" {
req.CreateKey = cli.GenerateMessageID()
}
if req.IsParent {
if req.DefaultMembershipApprovalMode == "" {
req.DefaultMembershipApprovalMode = "request_required"
}
participantNodes = append(participantNodes, waBinary.Node{
Tag: "parent",
Attrs: waBinary.Attrs{
"default_membership_approval_mode": req.DefaultMembershipApprovalMode,
},
})
} else if !req.LinkedParentJID.IsEmpty() {
participantNodes = append(participantNodes, waBinary.Node{
Tag: "linked_parent",
Attrs: waBinary.Attrs{"jid": req.LinkedParentJID},
})
}
if req.IsLocked {
participantNodes = append(participantNodes, waBinary.Node{Tag: "locked"})
}
if req.IsAnnounce {
participantNodes = append(participantNodes, waBinary.Node{Tag: "announcement"})
}
if req.IsEphemeral {
participantNodes = append(participantNodes, waBinary.Node{
Tag: "ephemeral",
Attrs: waBinary.Attrs{
"expiration": req.DisappearingTimer,
"trigger": "1", // TODO what's this?
},
})
}
if req.IsJoinApprovalRequired {
participantNodes = append(participantNodes, waBinary.Node{
Tag: "membership_approval_mode",
Content: []waBinary.Node{{
Tag: "group_join",
Attrs: waBinary.Attrs{"state": "on"},
}},
})
}
// WhatsApp web doesn't seem to include the static prefix for these
key := strings.TrimPrefix(req.CreateKey, "3EB0")
resp, err := cli.sendGroupIQ(ctx, iqSet, types.GroupServerJID, waBinary.Node{
Tag: "create",
Attrs: waBinary.Attrs{
"subject": req.Name,
"key": key,
},
Content: participantNodes,
})
if err != nil {
return nil, err
}
groupNode, ok := resp.GetOptionalChildByTag("group")
if !ok {
return nil, &ElementMissingError{Tag: "group", In: "response to create group query"}
}
return cli.parseGroupNode(&groupNode)
}
// UnlinkGroup removes a child group from a parent community.
func (cli *Client) UnlinkGroup(ctx context.Context, parent, child types.JID) error {
_, err := cli.sendGroupIQ(ctx, iqSet, parent, waBinary.Node{
Tag: "unlink",
Attrs: waBinary.Attrs{"unlink_type": string(types.GroupLinkChangeTypeSub)},
Content: []waBinary.Node{{
Tag: "group",
Attrs: waBinary.Attrs{"jid": child},
}},
})
return err
}
// LinkGroup adds an existing group as a child group in a community.
//
// To create a new group within a community, set LinkedParentJID in the CreateGroup request.
func (cli *Client) LinkGroup(ctx context.Context, parent, child types.JID) error {
_, err := cli.sendGroupIQ(ctx, iqSet, parent, waBinary.Node{
Tag: "links",
Content: []waBinary.Node{{
Tag: "link",
Attrs: waBinary.Attrs{"link_type": string(types.GroupLinkChangeTypeSub)},
Content: []waBinary.Node{{
Tag: "group",
Attrs: waBinary.Attrs{"jid": child},
}},
}},
})
return err
}
// LeaveGroup leaves the specified group on WhatsApp.
func (cli *Client) LeaveGroup(ctx context.Context, jid types.JID) error {
_, err := cli.sendGroupIQ(ctx, iqSet, types.GroupServerJID, waBinary.Node{
Tag: "leave",
Content: []waBinary.Node{{
Tag: "group",
Attrs: waBinary.Attrs{"id": jid},
}},
})
return err
}
type ParticipantChange string
const (
ParticipantChangeAdd ParticipantChange = "add"
ParticipantChangeRemove ParticipantChange = "remove"
ParticipantChangePromote ParticipantChange = "promote"
ParticipantChangeDemote ParticipantChange = "demote"
)
// UpdateGroupParticipants can be used to add, remove, promote and demote members in a WhatsApp group.
func (cli *Client) UpdateGroupParticipants(ctx context.Context, jid types.JID, participantChanges []types.JID, action ParticipantChange) ([]types.GroupParticipant, error) {
content := make([]waBinary.Node, len(participantChanges))
for i, participantJID := range participantChanges {
content[i] = waBinary.Node{
Tag: "participant",
Attrs: waBinary.Attrs{"jid": participantJID},
}
if participantJID.Server == types.HiddenUserServer && action == ParticipantChangeAdd {
pn, err := cli.Store.LIDs.GetPNForLID(ctx, participantJID)
if err != nil {
return nil, fmt.Errorf("failed to get phone number for LID %s: %v", participantJID, err)
} else if !pn.IsEmpty() {
content[i].Attrs["phone_number"] = pn
}
}
if action == ParticipantChangeAdd {
token, err := cli.ensureTCToken(ctx, participantJID)
if err != nil {
return nil, fmt.Errorf("failed to get privacy token for participant %s: %v", participantJID, err)
} else if len(token) > 0 {
content[i].Content = []waBinary.Node{{
Tag: "privacy",
Content: token,
}}
}
}
}
resp, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{
Tag: string(action),
Content: content,
})
if err != nil {
return nil, err
}
requestAction, ok := resp.GetOptionalChildByTag(string(action))
if !ok {
return nil, &ElementMissingError{Tag: string(action), In: "response to group participants update"}
}
requestParticipants := requestAction.GetChildrenByTag("participant")
participants := make([]types.GroupParticipant, len(requestParticipants))
for i, child := range requestParticipants {
participants[i] = parseParticipant(child.AttrGetter(), &child)
}
return participants, nil
}
// GetGroupRequestParticipants gets the list of participants that have requested to join the group.
func (cli *Client) GetGroupRequestParticipants(ctx context.Context, jid types.JID) ([]types.GroupParticipantRequest, error) {
resp, err := cli.sendGroupIQ(ctx, iqGet, jid, waBinary.Node{
Tag: "membership_approval_requests",
})
if err != nil {
return nil, err
}
request, ok := resp.GetOptionalChildByTag("membership_approval_requests")
if !ok {
return nil, &ElementMissingError{Tag: "membership_approval_requests", In: "response to group request participants query"}
}
requestParticipants := request.GetChildrenByTag("membership_approval_request")
participants := make([]types.GroupParticipantRequest, len(requestParticipants))
for i, req := range requestParticipants {
participants[i] = types.GroupParticipantRequest{
JID: req.AttrGetter().JID("jid"),
RequestedAt: req.AttrGetter().UnixTime("request_time"),
}
}
return participants, nil
}
type ParticipantRequestChange string
const (
ParticipantChangeApprove ParticipantRequestChange = "approve"
ParticipantChangeReject ParticipantRequestChange = "reject"
)
// UpdateGroupRequestParticipants can be used to approve or reject requests to join the group.
func (cli *Client) UpdateGroupRequestParticipants(ctx context.Context, jid types.JID, participantChanges []types.JID, action ParticipantRequestChange) ([]types.GroupParticipant, error) {
content := make([]waBinary.Node, len(participantChanges))
for i, participantJID := range participantChanges {
content[i] = waBinary.Node{
Tag: "participant",
Attrs: waBinary.Attrs{"jid": participantJID},
}
}
resp, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{
Tag: "membership_requests_action",
Content: []waBinary.Node{{
Tag: string(action),
Content: content,
}},
})
if err != nil {
return nil, err
}
request, ok := resp.GetOptionalChildByTag("membership_requests_action")
if !ok {
return nil, &ElementMissingError{Tag: "membership_requests_action", In: "response to group request participants update"}
}
requestAction, ok := request.GetOptionalChildByTag(string(action))
if !ok {
return nil, &ElementMissingError{Tag: string(action), In: "response to group request participants update"}
}
requestParticipants := requestAction.GetChildrenByTag("participant")
participants := make([]types.GroupParticipant, len(requestParticipants))
for i, child := range requestParticipants {
participants[i] = parseParticipant(child.AttrGetter(), &child)
}
return participants, nil
}
// SetGroupPhoto updates the group picture/icon of the given group on WhatsApp.
// The avatar should be a JPEG photo, other formats may be rejected with ErrInvalidImageFormat.
// The bytes can be nil to remove the photo. Returns the new picture ID.
func (cli *Client) SetGroupPhoto(ctx context.Context, jid types.JID, avatar []byte) (string, error) {
var content any
if avatar != nil {
content = []waBinary.Node{{
Tag: "picture",
Attrs: waBinary.Attrs{"type": "image"},
Content: avatar,
}}
}
resp, err := cli.sendIQ(ctx, infoQuery{
Namespace: "w:profile:picture",
Type: iqSet,
To: types.ServerJID,
Target: jid,
Content: content,
})
if errors.Is(err, ErrIQNotAcceptable) {
return "", wrapIQError(ErrInvalidImageFormat, err)
} else if err != nil {
return "", err
}
if avatar == nil {
return "remove", nil
}
pictureID, ok := resp.GetChildByTag("picture").Attrs["id"].(string)
if !ok {
return "", fmt.Errorf("didn't find picture ID in response")
}
return pictureID, nil
}
// SetGroupName updates the name (subject) of the given group on WhatsApp.
func (cli *Client) SetGroupName(ctx context.Context, jid types.JID, name string) error {
_, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{
Tag: "subject",
Content: []byte(name),
})
return err
}
// SetGroupTopic updates the topic (description) of the given group on WhatsApp.
//
// The previousID and newID fields are optional. If the previous ID is not specified, this will
// automatically fetch the current group info to find the previous topic ID. If the new ID is not
// specified, one will be generated with Client.GenerateMessageID().
func (cli *Client) SetGroupTopic(ctx context.Context, jid types.JID, previousID, newID, topic string) error {
if previousID == "" {
oldInfo, err := cli.GetGroupInfo(ctx, jid)
if err != nil {
return fmt.Errorf("failed to get old group info to update topic: %v", err)
}
previousID = oldInfo.TopicID
}
if newID == "" {
newID = cli.GenerateMessageID()
}
attrs := waBinary.Attrs{
"id": newID,
}
if previousID != "" {
attrs["prev"] = previousID
}
content := []waBinary.Node{{
Tag: "body",
Content: []byte(topic),
}}
if len(topic) == 0 {
attrs["delete"] = "true"
content = nil
}
_, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{
Tag: "description",
Attrs: attrs,
Content: content,
})
return err
}
// SetGroupLocked changes whether the group is locked (i.e. whether only admins can modify group info).
func (cli *Client) SetGroupLocked(ctx context.Context, jid types.JID, locked bool) error {
tag := "locked"
if !locked {
tag = "unlocked"
}
_, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{Tag: tag})
return err
}
// SetGroupAnnounce changes whether the group is in announce mode (i.e. whether only admins can send messages).
func (cli *Client) SetGroupAnnounce(ctx context.Context, jid types.JID, announce bool) error {
tag := "announcement"
if !announce {
tag = "not_announcement"
}
_, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{Tag: tag})
return err
}
// GetGroupInviteLink requests the invite link to the group from the WhatsApp servers.
//
// If reset is true, then the old invite link will be revoked and a new one generated.
func (cli *Client) GetGroupInviteLink(ctx context.Context, jid types.JID, reset bool) (string, error) {
iqType := iqGet
if reset {
iqType = iqSet
}
resp, err := cli.sendGroupIQ(ctx, iqType, jid, waBinary.Node{Tag: "invite"})
if errors.Is(err, ErrIQNotAuthorized) {
return "", wrapIQError(ErrGroupInviteLinkUnauthorized, err)
} else if errors.Is(err, ErrIQNotFound) {
return "", wrapIQError(ErrGroupNotFound, err)
} else if errors.Is(err, ErrIQForbidden) {
return "", wrapIQError(ErrNotInGroup, err)
} else if err != nil {
return "", err
}
code, ok := resp.GetChildByTag("invite").Attrs["code"].(string)
if !ok {
return "", fmt.Errorf("didn't find invite code in response")
}
return InviteLinkPrefix + code, nil
}
// GetGroupInfoFromInvite gets the group info from an invite message.
//
// Note that this is specifically for invite messages, not invite links. Use GetGroupInfoFromLink for resolving chat.whatsapp.com links.
func (cli *Client) GetGroupInfoFromInvite(ctx context.Context, jid, inviter types.JID, code string, expiration int64) (*types.GroupInfo, error) {
resp, err := cli.sendGroupIQ(ctx, iqGet, jid, waBinary.Node{
Tag: "query",
Content: []waBinary.Node{{
Tag: "add_request",
Attrs: waBinary.Attrs{
"code": code,
"expiration": expiration,
"admin": inviter,
},
}},
})
if err != nil {
return nil, err
}
groupNode, ok := resp.GetOptionalChildByTag("group")
if !ok {
return nil, &ElementMissingError{Tag: "group", In: "response to invite group info query"}
}
return cli.parseGroupNode(&groupNode)
}
// JoinGroupWithInvite joins a group using an invite message.
//
// Note that this is specifically for invite messages, not invite links. Use JoinGroupWithLink for joining with chat.whatsapp.com links.
func (cli *Client) JoinGroupWithInvite(ctx context.Context, jid, inviter types.JID, code string, expiration int64) error {
_, err := cli.sendGroupIQ(ctx, iqSet, jid, waBinary.Node{
Tag: "accept",
Attrs: waBinary.Attrs{
"code": code,
"expiration": expiration,
"admin": inviter,
},
})
return err
}
// GetGroupInfoFromLink resolves the given invite link and asks the WhatsApp servers for info about the group.
// This will not cause the user to join the group.
func (cli *Client) GetGroupInfoFromLink(ctx context.Context, code string) (*types.GroupInfo, error) {
resp, err := cli.sendGroupIQ(ctx, iqGet, types.GroupServerJID, waBinary.Node{
Tag: "invite",
Attrs: waBinary.Attrs{
"code": stripURLPrefix(code, InviteLinkPrefix),
},
})
if errors.Is(err, ErrIQGone) {
return nil, wrapIQError(ErrInviteLinkRevoked, err)
} else if errors.Is(err, ErrIQNotAcceptable) {
return nil, wrapIQError(ErrInviteLinkInvalid, err)
} else if err != nil {
return nil, err
}
groupNode, ok := resp.GetOptionalChildByTag("group")
if !ok {
return nil, &ElementMissingError{Tag: "group", In: "response to group link info query"}
}
return cli.parseGroupNode(&groupNode)
}
// JoinGroupWithLink joins the group using the given invite link.
func (cli *Client) JoinGroupWithLink(ctx context.Context, code string) (types.JID, error) {
resp, err := cli.sendGroupIQ(ctx, iqSet, types.GroupServerJID, waBinary.Node{
Tag: "invite",
Attrs: waBinary.Attrs{
"code": stripURLPrefix(code, InviteLinkPrefix),
},
})
if errors.Is(err, ErrIQGone) {
return types.EmptyJID, wrapIQError(ErrInviteLinkRevoked, err)
} else if errors.Is(err, ErrIQNotAcceptable) {
return types.EmptyJID, wrapIQError(ErrInviteLinkInvalid, err)
} else if err != nil {
return types.EmptyJID, err
}
membershipApprovalModeNode, ok := resp.GetOptionalChildByTag("membership_approval_request")
if ok {
return membershipApprovalModeNode.AttrGetter().JID("jid"), nil
}
groupNode, ok := resp.GetOptionalChildByTag("group")
if !ok {
return types.EmptyJID, &ElementMissingError{Tag: "group", In: "response to group link join query"}
}
return groupNode.AttrGetter().JID("jid"), nil
}
// GetJoinedGroups returns the list of groups the user is participating in.
func (cli *Client) GetJoinedGroups(ctx context.Context) ([]*types.GroupInfo, error) {
resp, err := cli.sendGroupIQ(ctx, iqGet, types.GroupServerJID, waBinary.Node{
Tag: "participating",
Content: []waBinary.Node{
{Tag: "participants"},
{Tag: "description"},
},
})
if err != nil {
return nil, err
}
groups, ok := resp.GetOptionalChildByTag("groups")
if !ok {
return nil, &ElementMissingError{Tag: "groups", In: "response to group list query"}
}
children := groups.GetChildren()
infos := make([]*types.GroupInfo, 0, len(children))
var allLIDPairs []store.LIDMapping
var allRedactedPhones []store.RedactedPhoneEntry
for _, child := range children {
if child.Tag != "group" {
cli.Log.Debugf("Unexpected child in group list response: %s", &child)
continue
}
parsed, parseErr := cli.parseGroupNode(&child)
if parseErr != nil {
cli.Log.Warnf("Error parsing group %s: %v", parsed.JID, parseErr)
}
lidPairs, redactedPhones := cli.cacheGroupInfo(parsed, true)
allLIDPairs = append(allLIDPairs, lidPairs...)
allRedactedPhones = append(allRedactedPhones, redactedPhones...)
infos = append(infos, parsed)
}
err = cli.Store.LIDs.PutManyLIDMappings(ctx, allLIDPairs)
if err != nil {
cli.Log.Warnf("Failed to store LID mappings from joined groups: %v", err)
}
err = cli.Store.Contacts.PutManyRedactedPhones(ctx, allRedactedPhones)
if err != nil {
cli.Log.Warnf("Failed to store redacted phones from joined groups: %v", err)
}
return infos, nil
}
// GetSubGroups gets the subgroups of the given community.
func (cli *Client) GetSubGroups(ctx context.Context, community types.JID) ([]*types.GroupLinkTarget, error) {
res, err := cli.sendGroupIQ(ctx, iqGet, community, waBinary.Node{Tag: "sub_groups"})
if err != nil {
return nil, err
}
groups, ok := res.GetOptionalChildByTag("sub_groups")
if !ok {
return nil, &ElementMissingError{Tag: "sub_groups", In: "response to subgroups query"}
}
var parsedGroups []*types.GroupLinkTarget
for _, child := range groups.GetChildren() {
if child.Tag == "group" {
parsedGroup, err := parseGroupLinkTargetNode(&child)
if err != nil {
return parsedGroups, fmt.Errorf("failed to parse group in subgroups list: %w", err)
}
parsedGroups = append(parsedGroups, &parsedGroup)
}
}
return parsedGroups, nil
}
// GetLinkedGroupsParticipants gets all the participants in the groups of the given community.
func (cli *Client) GetLinkedGroupsParticipants(ctx context.Context, community types.JID) ([]types.JID, error) {
res, err := cli.sendGroupIQ(ctx, iqGet, community, waBinary.Node{Tag: "linked_groups_participants"})
if err != nil {
return nil, err
}
participants, ok := res.GetOptionalChildByTag("linked_groups_participants")
if !ok {
return nil, &ElementMissingError{Tag: "linked_groups_participants", In: "response to community participants query"}
}
members, lidPairs := parseParticipantList(&participants)
if len(lidPairs) > 0 {
err = cli.Store.LIDs.PutManyLIDMappings(ctx, lidPairs)
if err != nil {
cli.Log.Warnf("Failed to store LID mappings for community participants: %v", err)
}
}
return members, nil
}
// GetGroupInfo requests basic info about a group chat from the WhatsApp servers.
func (cli *Client) GetGroupInfo(ctx context.Context, jid types.JID) (*types.GroupInfo, error) {
return cli.getGroupInfo(ctx, jid, true)
}
func (cli *Client) cacheGroupInfo(groupInfo *types.GroupInfo, lock bool) ([]store.LIDMapping, []store.RedactedPhoneEntry) {
participants := make([]types.JID, len(groupInfo.Participants))
lidPairs := make([]store.LIDMapping, len(groupInfo.Participants))
redactedPhones := make([]store.RedactedPhoneEntry, 0)
for i, part := range groupInfo.Participants {
participants[i] = part.JID
if !part.PhoneNumber.IsEmpty() && !part.LID.IsEmpty() {
lidPairs[i] = store.LIDMapping{
LID: part.LID,
PN: part.PhoneNumber,
}
}
if part.DisplayName != "" && !part.LID.IsEmpty() {
redactedPhones = append(redactedPhones, store.RedactedPhoneEntry{
JID: part.LID,
RedactedPhone: part.DisplayName,
})
}
}
if lock {
cli.groupCacheLock.Lock()
defer cli.groupCacheLock.Unlock()
}
cli.groupCache[groupInfo.JID] = &groupMetaCache{
AddressingMode: groupInfo.AddressingMode,
CommunityAnnouncementGroup: groupInfo.IsAnnounce && groupInfo.IsDefaultSubGroup,
Members: participants,
}
return lidPairs, redactedPhones
}
func (cli *Client) getGroupInfo(ctx context.Context, jid types.JID, lockParticipantCache bool) (*types.GroupInfo, error) {
res, err := cli.sendGroupIQ(ctx, iqGet, jid, waBinary.Node{
Tag: "query",
Attrs: waBinary.Attrs{"request": "interactive"},
})
if errors.Is(err, ErrIQNotFound) {
return nil, wrapIQError(ErrGroupNotFound, err)
} else if errors.Is(err, ErrIQForbidden) {
return nil, wrapIQError(ErrNotInGroup, err)
} else if err != nil {
return nil, err
}
groupNode, ok := res.GetOptionalChildByTag("group")
if !ok {
return nil, &ElementMissingError{Tag: "groups", In: "response to group info query"}
}
groupInfo, err := cli.parseGroupNode(&groupNode)
if err != nil {
return groupInfo, err
}
lidPairs, redactedPhones := cli.cacheGroupInfo(groupInfo, lockParticipantCache)
err = cli.Store.LIDs.PutManyLIDMappings(ctx, lidPairs)
if err != nil {
cli.Log.Warnf("Failed to store LID mappings for members of %s: %v", jid, err)
}
err = cli.Store.Contacts.PutManyRedactedPhones(ctx, redactedPhones)
if err != nil {
cli.Log.Warnf("Failed to store redacted phones for members of %s: %v", jid, err)
}
return groupInfo, nil
}
func (cli *Client) getCachedGroupData(ctx context.Context, jid types.JID) (*groupMetaCache, error) {
cli.groupCacheLock.Lock()
defer cli.groupCacheLock.Unlock()
if val, ok := cli.groupCache[jid]; ok {
return val, nil
}
_, err := cli.getGroupInfo(ctx, jid, false)
if err != nil {
return nil, err
}
return cli.groupCache[jid], nil
}
func parseParticipant(childAG *waBinary.AttrUtility, child *waBinary.Node) types.GroupParticipant {
pcpType := childAG.OptionalString("type")
participant := types.GroupParticipant{
IsAdmin: pcpType == "admin" || pcpType == "superadmin",
IsSuperAdmin: pcpType == "superadmin",
JID: childAG.JID("jid"),
DisplayName: childAG.OptionalString("display_name"),
}
if participant.JID.Server == types.HiddenUserServer {
participant.LID = participant.JID
participant.PhoneNumber = childAG.OptionalJIDOrEmpty("phone_number")
} else if participant.JID.Server == types.DefaultUserServer {
participant.PhoneNumber = participant.JID
participant.LID = childAG.OptionalJIDOrEmpty("lid")
}
if errorCode := childAG.OptionalInt("error"); errorCode != 0 {
participant.Error = errorCode
addRequest, ok := child.GetOptionalChildByTag("add_request")
if ok {
addAG := addRequest.AttrGetter()
participant.AddRequest = &types.GroupParticipantAddRequest{
Code: addAG.String("code"),
Expiration: addAG.UnixTime("expiration"),
}
}
}
return participant
}
func (cli *Client) parseGroupNode(groupNode *waBinary.Node) (*types.GroupInfo, error) {
var group types.GroupInfo
ag := groupNode.AttrGetter()
group.JID = types.NewJID(ag.String("id"), types.GroupServer)
group.OwnerJID = ag.OptionalJIDOrEmpty("creator")
group.OwnerPN = ag.OptionalJIDOrEmpty("creator_pn")
group.Name = ag.OptionalString("subject")
group.NameSetAt = ag.OptionalUnixTime("s_t")
group.NameSetBy = ag.OptionalJIDOrEmpty("s_o")
group.NameSetByPN = ag.OptionalJIDOrEmpty("s_o_pn")
group.GroupCreated = ag.OptionalUnixTime("creation")
group.CreatorCountryCode = ag.OptionalString("creator_country_code")
group.AnnounceVersionID = ag.OptionalString("a_v_id")
group.ParticipantVersionID = ag.OptionalString("p_v_id")
group.ParticipantCount = ag.OptionalInt("size")
group.AddressingMode = types.AddressingMode(ag.OptionalString("addressing_mode"))
for _, child := range groupNode.GetChildren() {
childAG := child.AttrGetter()
switch child.Tag {
case "participant":
group.Participants = append(group.Participants, parseParticipant(childAG, &child))
case "description":
body, bodyOK := child.GetOptionalChildByTag("body")
if bodyOK {
topicBytes, _ := body.Content.([]byte)
group.Topic = string(topicBytes)
group.TopicID = childAG.String("id")
group.TopicSetBy = childAG.OptionalJIDOrEmpty("participant")
group.TopicSetByPN = childAG.OptionalJIDOrEmpty("participant_pn") // TODO confirm field name
group.TopicSetAt = childAG.UnixTime("t")
}
case "announcement":
group.IsAnnounce = true
case "locked":
group.IsLocked = true
case "ephemeral":
group.IsEphemeral = true
group.DisappearingTimer = uint32(childAG.Uint64("expiration"))
case "member_add_mode":
modeBytes, _ := child.Content.([]byte)
group.MemberAddMode = types.GroupMemberAddMode(modeBytes)
case "linked_parent":
group.LinkedParentJID = childAG.JID("jid")
case "default_sub_group":
group.IsDefaultSubGroup = true
case "parent":
group.IsParent = true
group.DefaultMembershipApprovalMode = childAG.OptionalString("default_membership_approval_mode")
case "incognito":
group.IsIncognito = true
case "membership_approval_mode":
group.IsJoinApprovalRequired = true
case "suspended":
group.Suspended = true
default:
cli.Log.Debugf("Unknown element in group node %s: %s", group.JID.String(), &child)
}
if !childAG.OK() {
cli.Log.Warnf("Possibly failed to parse %s element in group node: %+v", child.Tag, childAG.Errors)
}
}
return &group, ag.Error()
}
func parseGroupLinkTargetNode(groupNode *waBinary.Node) (types.GroupLinkTarget, error) {
ag := groupNode.AttrGetter()
jidKey := ag.OptionalJIDOrEmpty("jid")
if jidKey.IsEmpty() {
jidKey = types.NewJID(ag.String("id"), types.GroupServer)
}
return types.GroupLinkTarget{
JID: jidKey,
GroupName: types.GroupName{
Name: ag.OptionalString("subject"),
NameSetAt: ag.OptionalUnixTime("s_t"),
},
GroupIsDefaultSub: types.GroupIsDefaultSub{
IsDefaultSubGroup: groupNode.GetChildByTag("default_sub_group").Tag == "default_sub_group",
},
}, ag.Error()
}
func parseParticipantList(node *waBinary.Node) (participants []types.JID, lidPairs []store.LIDMapping) {
children := node.GetChildren()
participants = make([]types.JID, 0, len(children))
for _, child := range children {
jid, ok := child.Attrs["jid"].(types.JID)
if child.Tag != "participant" || !ok {
continue
}
participants = append(participants, jid)
if jid.Server == types.HiddenUserServer {
phoneNumber, ok := child.Attrs["phone_number"].(types.JID)
if ok && !phoneNumber.IsEmpty() {
lidPairs = append(lidPairs, store.LIDMapping{
LID: jid,
PN: phoneNumber,
})
}
} else if jid.Server == types.DefaultUserServer {
lid, ok := child.Attrs["lid"].(types.JID)
if ok && !lid.IsEmpty() {
lidPairs = append(lidPairs, store.LIDMapping{
LID: lid,
PN: jid,
})
}
}
}
return
}
func (cli *Client) parseGroupCreate(parentNode, node *waBinary.Node) (*events.JoinedGroup, []store.LIDMapping, []store.RedactedPhoneEntry, error) {
groupNode, ok := node.GetOptionalChildByTag("group")
if !ok {
return nil, nil, nil, fmt.Errorf("group create notification didn't contain group info")
}
var evt events.JoinedGroup
pag := parentNode.AttrGetter()
ag := node.AttrGetter()
evt.Reason = ag.OptionalString("reason")
evt.CreateKey = ag.OptionalString("key")
evt.Type = ag.OptionalString("type")
evt.Sender = pag.OptionalJID("participant")
evt.SenderPN = pag.OptionalJID("participant_pn")
evt.Notify = pag.OptionalString("notify")
info, err := cli.parseGroupNode(&groupNode)
if err != nil {
return nil, nil, nil, fmt.Errorf("failed to parse group info in create notification: %w", err)
}
evt.GroupInfo = *info
lidPairs, redactedPhones := cli.cacheGroupInfo(info, true)
return &evt, lidPairs, redactedPhones, nil
}
func (cli *Client) parseGroupChange(node *waBinary.Node) (*events.GroupInfo, []store.LIDMapping, error) {
var evt events.GroupInfo
ag := node.AttrGetter()
evt.JID = ag.JID("from")
evt.Notify = ag.OptionalString("notify")
evt.Sender = ag.OptionalJID("participant")
evt.SenderPN = ag.OptionalJID("participant_pn")
evt.Timestamp = ag.UnixTime("t")
if !ag.OK() {
return nil, nil, fmt.Errorf("group change doesn't contain required attributes: %w", ag.Error())
}
var lidPairs []store.LIDMapping
for _, child := range node.GetChildren() {
cag := child.AttrGetter()
if child.Tag == "add" || child.Tag == "remove" || child.Tag == "promote" || child.Tag == "demote" {
evt.PrevParticipantVersionID = cag.OptionalString("prev_v_id")
evt.ParticipantVersionID = cag.OptionalString("v_id")
}
switch child.Tag {
case "add":
evt.JoinReason = cag.OptionalString("reason")
evt.Join, lidPairs = parseParticipantList(&child)
case "remove":
evt.Leave, lidPairs = parseParticipantList(&child)
case "promote":
evt.Promote, lidPairs = parseParticipantList(&child)
case "demote":
evt.Demote, lidPairs = parseParticipantList(&child)
case "locked":
evt.Locked = &types.GroupLocked{IsLocked: true}
case "unlocked":
evt.Locked = &types.GroupLocked{IsLocked: false}
case "delete":
evt.Delete = &types.GroupDelete{Deleted: true, DeleteReason: cag.String("reason")}
case "subject":
evt.Name = &types.GroupName{
Name: cag.String("subject"),
NameSetAt: cag.UnixTime("s_t"),
NameSetBy: cag.OptionalJIDOrEmpty("s_o"),
NameSetByPN: cag.OptionalJIDOrEmpty("s_o_pn"),
}
case "description":
var topicStr string
_, isDelete := child.GetOptionalChildByTag("delete")
if !isDelete {
topicChild := child.GetChildByTag("body")
topicBytes, ok := topicChild.Content.([]byte)
if !ok {
return nil, nil, fmt.Errorf("group change description has unexpected body: %s", &topicChild)
}
topicStr = string(topicBytes)
}
var setBy types.JID
if evt.Sender != nil {
setBy = *evt.Sender
}
evt.Topic = &types.GroupTopic{
Topic: topicStr,
TopicID: cag.String("id"),
TopicSetAt: evt.Timestamp,
TopicSetBy: setBy,
TopicDeleted: isDelete,
}
case "announcement":
evt.Announce = &types.GroupAnnounce{
IsAnnounce: true,
AnnounceVersionID: cag.String("v_id"),
}
case "not_announcement":
evt.Announce = &types.GroupAnnounce{
IsAnnounce: false,
AnnounceVersionID: cag.String("v_id"),
}
case "invite":
link := InviteLinkPrefix + cag.String("code")
evt.NewInviteLink = &link
case "ephemeral":
timer := uint32(cag.Uint64("expiration"))
evt.Ephemeral = &types.GroupEphemeral{
IsEphemeral: true,
DisappearingTimer: timer,
}
case "not_ephemeral":
evt.Ephemeral = &types.GroupEphemeral{IsEphemeral: false}
case "link":
evt.Link = &types.GroupLinkChange{
Type: types.GroupLinkChangeType(cag.String("link_type")),
}
groupNode, ok := child.GetOptionalChildByTag("group")
if !ok {
return nil, nil, &ElementMissingError{Tag: "group", In: "group link"}
}
var err error
evt.Link.Group, err = parseGroupLinkTargetNode(&groupNode)
if err != nil {
return nil, nil, fmt.Errorf("failed to parse group link node in group change: %w", err)
}
case "unlink":
evt.Unlink = &types.GroupLinkChange{
Type: types.GroupLinkChangeType(cag.String("unlink_type")),
UnlinkReason: types.GroupUnlinkReason(cag.String("unlink_reason")),
}
groupNode, ok := child.GetOptionalChildByTag("group")
if !ok {
return nil, nil, &ElementMissingError{Tag: "group", In: "group unlink"}
}
var err error
evt.Unlink.Group, err = parseGroupLinkTargetNode(&groupNode)
if err != nil {
return nil, nil, fmt.Errorf("failed to parse group unlink node in group change: %w", err)
}
case "membership_approval_mode":
evt.MembershipApprovalMode = &types.GroupMembershipApprovalMode{
IsJoinApprovalRequired: true,
}
case "suspended":
evt.Suspended = true
case "unsuspended":
evt.Unsuspended = true
default:
evt.UnknownChanges = append(evt.UnknownChanges, &child)
}
if !cag.OK() {
return nil, nil, fmt.Errorf("group change %s element doesn't contain required attributes: %w", child.Tag, cag.Error())
}
}
return &evt, lidPairs, nil
}
func (cli *Client) updateGroupParticipantCache(evt *events.GroupInfo) {
// TODO can the addressing mode change here?
if len(evt.Join) == 0 && len(evt.Leave) == 0 {
return
}
cli.groupCacheLock.Lock()
defer cli.groupCacheLock.Unlock()
cached, ok := cli.groupCache[evt.JID]
3637
if !ok {
return
}
Outer:
for _, jid := range evt.Join {
for _, existingJID := range cached.Members {
if jid == existingJID {
continue Outer