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member_set.go
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member_set.go
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package teams
import (
"fmt"
"github.com/keybase/client/go/libkb"
"github.com/keybase/client/go/protocol/keybase1"
"golang.org/x/net/context"
)
type storeMemberKind int
const (
storeMemberKindNone = iota
storeMemberKindRecipient
storeMemberKindRestrictedBotRecipient
)
type member struct {
version keybase1.UserVersion
perUserKey keybase1.PerUserKey
}
type MemberMap map[keybase1.UserVersion]keybase1.PerUserKey
type memberSet struct {
Owners []member
Admins []member
Writers []member
Readers []member
Bots []member
RestrictedBots []member
None []member
// the per-user-keys of everyone in the lists above
recipients MemberMap
restrictedBotRecipients MemberMap
restrictedBotSettings map[keybase1.UserVersion]keybase1.TeamBotSettings
}
func newMemberSet() *memberSet {
return &memberSet{
recipients: make(MemberMap),
restrictedBotRecipients: make(MemberMap),
restrictedBotSettings: make(map[keybase1.UserVersion]keybase1.TeamBotSettings),
}
}
func (m MemberMap) Eq(n MemberMap) bool {
if m == nil && n == nil {
return true
}
if m == nil || n == nil {
return false
}
if len(m) != len(n) {
return false
}
for k, v := range m {
if n[k] != v {
return false
}
}
return true
}
func newMemberSetChange(ctx context.Context, g *libkb.GlobalContext, req keybase1.TeamChangeReq) (*memberSet, error) {
set := newMemberSet()
if err := set.loadMembers(ctx, g, req, true /* forcePoll*/); err != nil {
return nil, err
}
for uv, settings := range req.RestrictedBots {
set.restrictedBotSettings[uv] = settings
}
return set, nil
}
func (m *memberSet) recipientUids() []keybase1.UID {
uids := make([]keybase1.UID, 0, len(m.recipients))
for uv := range m.recipients {
uids = append(uids, uv.Uid)
}
return uids
}
func (m *memberSet) restrictedBotRecipientUids() []keybase1.UID {
uids := make([]keybase1.UID, 0, len(m.restrictedBotRecipients))
for uv := range m.restrictedBotRecipients {
uids = append(uids, uv.Uid)
}
return uids
}
func (m *memberSet) appendMemberSet(other *memberSet) {
m.Owners = append(m.Owners, other.Owners...)
m.Admins = append(m.Admins, other.Admins...)
m.Writers = append(m.Writers, other.Writers...)
m.Readers = append(m.Readers, other.Readers...)
m.Bots = append(m.Bots, other.Bots...)
m.RestrictedBots = append(m.RestrictedBots, other.RestrictedBots...)
m.None = append(m.None, other.None...)
for k, v := range other.recipients {
m.recipients[k] = v
}
for k, v := range other.restrictedBotRecipients {
m.restrictedBotRecipients[k] = v
}
for k, v := range other.restrictedBotSettings {
m.restrictedBotSettings[k] = v
}
}
func (m *memberSet) nonAdmins() []member {
var ret []member
ret = append(ret, m.RestrictedBots...)
ret = append(ret, m.Bots...)
ret = append(ret, m.Readers...)
ret = append(ret, m.Writers...)
return ret
}
func (m *memberSet) adminAndOwnerRecipients() MemberMap {
ret := MemberMap{}
for _, owner := range m.Owners {
ret[owner.version] = owner.perUserKey
}
for _, admin := range m.Admins {
ret[admin.version] = admin.perUserKey
}
return ret
}
func (m *memberSet) loadMembers(ctx context.Context, g *libkb.GlobalContext, req keybase1.TeamChangeReq, forcePoll bool) error {
var err error
m.Owners, err = m.loadGroup(ctx, g, req.Owners, storeMemberKindRecipient, forcePoll)
if err != nil {
return err
}
m.Admins, err = m.loadGroup(ctx, g, req.Admins, storeMemberKindRecipient, forcePoll)
if err != nil {
return err
}
m.Writers, err = m.loadGroup(ctx, g, req.Writers, storeMemberKindRecipient, forcePoll)
if err != nil {
return err
}
m.Readers, err = m.loadGroup(ctx, g, req.Readers, storeMemberKindRecipient, forcePoll)
if err != nil {
return err
}
// regular bots do get the PTK, store them as a regular recipient
m.Bots, err = m.loadGroup(ctx, g, req.Bots, storeMemberKindRecipient, forcePoll)
if err != nil {
return err
}
// restricted bots are not recipients of of the PTK
m.RestrictedBots, err = m.loadGroup(ctx, g, req.RestrictedBotUVs(), storeMemberKindRestrictedBotRecipient, forcePoll)
if err != nil {
return err
}
m.None, err = m.loadGroup(ctx, g, req.None, storeMemberKindNone, false)
return err
}
func (m *memberSet) loadGroup(ctx context.Context, g *libkb.GlobalContext,
group []keybase1.UserVersion, storeMemberKind storeMemberKind, forcePoll bool) ([]member, error) {
var members []member
for _, uv := range group {
mem, err := m.addMember(ctx, g, uv, storeMemberKind, forcePoll)
if _, reset := err.(libkb.AccountResetError); reset {
switch storeMemberKind {
case storeMemberKindNone:
// If caller doesn't care about keys, it probably expects
// reset users to be passed through as well. This is used
// in reading reset users in impteams.
members = append(members, member{version: uv})
default:
g.Log.CDebugf(ctx, "Skipping reset account %s in team load", uv.String())
}
continue
}
if err != nil {
return nil, err
}
members = append(members, mem)
}
return members, nil
}
func loadUPAK2(ctx context.Context, g *libkb.GlobalContext, uid keybase1.UID, forcePoll bool) (ret *keybase1.UserPlusKeysV2AllIncarnations, err error) {
defer g.CTrace(ctx, fmt.Sprintf("loadUPAK2(%s)", uid), &err)()
arg := libkb.NewLoadUserArg(g).WithNetContext(ctx).WithUID(uid).WithPublicKeyOptional()
if forcePoll {
arg = arg.WithForcePoll(true)
}
upak, _, err := g.GetUPAKLoader().LoadV2(arg)
return upak, err
}
func parseSocialAssertion(m libkb.MetaContext, username string) (typ string, name string, err error) {
assertion, err := libkb.ParseAssertionURL(m.G().MakeAssertionContext(m), username, false)
if err != nil {
return "", "", err
}
if assertion.IsKeybase() {
return "", "", fmt.Errorf("invalid user assertion %q, keybase assertion should be handled earlier", username)
}
typ, name = assertion.ToKeyValuePair()
return typ, name, nil
}
func memberFromUPAK(ctx context.Context, requestedUV keybase1.UserVersion, upak *keybase1.UserPlusKeysV2AllIncarnations) (member, error) {
if upak == nil {
return member{}, fmt.Errorf("got nil upak")
}
if upak.Current.EldestSeqno != requestedUV.EldestSeqno {
return member{}, libkb.NewAccountResetError(requestedUV, upak.Current.EldestSeqno)
}
key := upak.Current.GetLatestPerUserKey()
if key == nil || key.Gen <= 0 {
return member{}, fmt.Errorf("user has no per-user key: %s", requestedUV.String())
}
return member{
version: NewUserVersion(upak.Current.Uid, upak.Current.EldestSeqno),
perUserKey: *key,
}, nil
}
func loadMember(ctx context.Context, g *libkb.GlobalContext, uv keybase1.UserVersion, forcePoll bool) (mem member, err error) {
defer g.CTrace(ctx, fmt.Sprintf("loadMember(%s, forcePoll=%t)", uv, forcePoll), &err)()
upak, err := loadUPAK2(ctx, g, uv.Uid, forcePoll)
if err != nil {
if _, reset := err.(libkb.NoKeyError); reset {
err = libkb.NewAccountResetError(uv, keybase1.Seqno(0))
}
return mem, err
}
mem, err = memberFromUPAK(ctx, uv, upak)
if err != nil {
return mem, err
}
return mem, nil
}
func (m *memberSet) addMember(ctx context.Context, g *libkb.GlobalContext, uv keybase1.UserVersion, storeMemberKind storeMemberKind, forcePoll bool) (mem member, err error) {
mem, err = loadMember(ctx, g, uv, forcePoll)
if err != nil {
return mem, err
}
m.storeMember(ctx, g, mem, storeMemberKind)
return mem, nil
}
func (m *memberSet) storeMember(ctx context.Context, g *libkb.GlobalContext, mem member, storeMemberKind storeMemberKind) {
switch storeMemberKind {
case storeMemberKindRecipient:
m.recipients[mem.version] = mem.perUserKey
case storeMemberKindRestrictedBotRecipient:
m.restrictedBotRecipients[mem.version] = mem.perUserKey
}
}
type MemberChecker interface {
IsMember(context.Context, keybase1.UserVersion) bool
MemberRole(context.Context, keybase1.UserVersion) (keybase1.TeamRole, error)
}
func (m *memberSet) removeExistingMembers(ctx context.Context, checker MemberChecker) {
for uv := range m.recipients {
if checker.IsMember(ctx, uv) {
existingRole, err := checker.MemberRole(ctx, uv)
// If we were previously a RESTRICTEDBOT, we now need to be boxed
// for the PTK so we skip removal.
if err == nil && existingRole.IsRestrictedBot() {
continue
}
delete(m.recipients, uv)
}
}
for uv := range m.restrictedBotRecipients {
if checker.IsMember(ctx, uv) {
delete(m.restrictedBotRecipients, uv)
delete(m.restrictedBotSettings, uv)
}
}
}
// AddRemainingRecipients adds everyone in existing to m.recipients or
// m.restrictedBotRecipients that isn't in m.None.
func (m *memberSet) AddRemainingRecipients(ctx context.Context, g *libkb.GlobalContext, existing keybase1.TeamMembers) (err error) {
defer g.CTrace(ctx, "memberSet#AddRemainingRecipients", &err)()
// make a map of the None members
filtered := make(map[keybase1.UserVersion]bool)
for _, n := range m.None {
filtered[n.version] = true
}
existingRestrictedBots := make(map[keybase1.UserVersion]bool)
for _, uv := range existing.RestrictedBots {
existingRestrictedBots[uv] = true
}
auv := existing.AllUserVersions()
forceUserPoll := true
if len(auv) > 50 {
forceUserPoll = false
}
type request struct {
uv keybase1.UserVersion
storeMemberKind storeMemberKind
}
var requests []request
for _, uv := range auv {
if filtered[uv] {
continue
}
if _, ok := m.recipients[uv]; ok {
continue
}
if _, ok := m.restrictedBotRecipients[uv]; ok {
continue
}
var storeMemberKind storeMemberKind
if _, ok := existingRestrictedBots[uv]; ok {
storeMemberKind = storeMemberKindRestrictedBotRecipient
} else {
storeMemberKind = storeMemberKindRecipient
}
requests = append(requests, request{
uv: uv,
storeMemberKind: storeMemberKind,
})
}
// for UPAK Batcher API
getArg := func(idx int) *libkb.LoadUserArg {
if idx >= len(requests) {
return nil
}
// Because we pass WithPublicKeyOptional, users who have reset do not cause an error when loading the UPAK, but are ignored later
// in processResult.
arg := libkb.NewLoadUserByUIDArg(ctx, g, requests[idx].uv.Uid).WithPublicKeyOptional().WithForcePoll(forceUserPoll)
return &arg
}
// for UPAK Batcher API
processResult := func(idx int, upak *keybase1.UserPlusKeysV2AllIncarnations) error {
mem, err := memberFromUPAK(ctx, requests[idx].uv, upak)
switch err.(type) {
case nil:
case libkb.AccountResetError:
return nil
default:
return err
}
m.storeMember(ctx, g, mem, requests[idx].storeMemberKind)
return nil
}
err = g.GetUPAKLoader().Batcher(ctx, getArg, processResult, 0)
if err != nil {
return err
}
return nil
}
func (m *memberSet) nameSeqList(members []member) (*[]SCTeamMember, error) {
if len(members) == 0 {
return nil, nil
}
res := make([]SCTeamMember, len(members))
for i, m := range members {
res[i] = SCTeamMember(m.version)
}
return &res, nil
}
// can return nil
func (m *memberSet) Section() (res *SCTeamMembers, err error) {
if m.empty() {
return nil, nil
}
res = &SCTeamMembers{}
res.Owners, err = m.nameSeqList(m.Owners)
if err != nil {
return nil, err
}
res.Admins, err = m.nameSeqList(m.Admins)
if err != nil {
return nil, err
}
res.Writers, err = m.nameSeqList(m.Writers)
if err != nil {
return nil, err
}
res.Readers, err = m.nameSeqList(m.Readers)
if err != nil {
return nil, err
}
res.Bots, err = m.nameSeqList(m.Bots)
if err != nil {
return nil, err
}
res.RestrictedBots, err = m.nameSeqList(m.RestrictedBots)
if err != nil {
return nil, err
}
res.None, err = m.nameSeqList(m.None)
if err != nil {
return nil, err
}
return res, nil
}
func (m *memberSet) HasRemoval() bool {
return len(m.None) > 0
}
func (m *memberSet) HasAdditions() bool {
return (len(m.Owners) + len(m.Admins) + len(m.Writers) + len(m.Readers) + len(m.Bots) + len(m.RestrictedBots)) > 0
}
func (m *memberSet) empty() bool {
return len(m.Owners) == 0 && len(m.Admins) == 0 && len(m.Writers) == 0 && len(m.Readers) == 0 && len(m.Bots) == 0 && len(m.RestrictedBots) == 0 && len(m.None) == 0
}