/
teams.go
888 lines (798 loc) · 29.3 KB
/
teams.go
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package chat
import (
"errors"
"fmt"
"strings"
lru "github.com/hashicorp/golang-lru"
"github.com/keybase/client/go/chat/globals"
"github.com/keybase/client/go/chat/types"
"github.com/keybase/client/go/chat/utils"
"github.com/keybase/client/go/libkb"
"github.com/keybase/client/go/protocol/chat1"
"github.com/keybase/client/go/protocol/gregor1"
"github.com/keybase/client/go/protocol/keybase1"
"github.com/keybase/client/go/teambot"
"github.com/keybase/client/go/teams"
context "golang.org/x/net/context"
)
func getTeamCryptKey(mctx libkb.MetaContext, team *teams.Team, generation keybase1.PerTeamKeyGeneration,
public, kbfsEncrypted bool, botUID *gregor1.UID, forEncryption bool) (res types.CryptKey, err error) {
if public {
return publicCryptKey, nil
}
if teambot.CurrentUserIsBot(mctx, botUID) {
if kbfsEncrypted {
return res, fmt.Errorf("TeambotKeys not supported by KBFS")
}
keyer := mctx.G().GetTeambotBotKeyer()
if forEncryption {
return keyer.GetLatestTeambotKey(mctx, team.ID, keybase1.TeamApplication_CHAT)
}
return keyer.GetTeambotKeyAtGeneration(mctx, team.ID, keybase1.TeamApplication_CHAT, keybase1.TeambotKeyGeneration(generation))
}
if kbfsEncrypted {
if botUID != nil {
return res, fmt.Errorf("TeambotKeys not supported by KBFS")
}
kbfsKeys := team.KBFSCryptKeys(mctx.Ctx(), keybase1.TeamApplication_CHAT)
for _, key := range kbfsKeys {
if key.Generation() == int(generation) {
return key, nil
}
}
return res, NewDecryptionKeyNotFoundError(int(generation), kbfsEncrypted, public)
}
appKey, err := team.ChatKeyAtGeneration(mctx.Ctx(), generation)
if err != nil {
return res, err
}
// Need to convert this key in to a TeambotKey
if botUID != nil {
res, _, err = mctx.G().GetTeambotMemberKeyer().GetOrCreateTeambotKey(
mctx, team.ID, *botUID, appKey)
return res, err
}
return appKey, nil
}
func encryptionKeyViaFTL(m libkb.MetaContext, name string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType) (res types.CryptKey, ni types.NameInfo, err error) {
ftlRes, err := getKeyViaFTL(m, name, tlfID, membersType, 0)
if err != nil {
return res, ni, err
}
ni = types.NameInfo{
ID: tlfID,
CanonicalName: ftlRes.Name.String(),
}
return ftlRes.ApplicationKeys[0], ni, nil
}
func decryptionKeyViaFTL(m libkb.MetaContext, tlfID chat1.TLFID, membersType chat1.ConversationMembersType,
keyGeneration int) (res types.CryptKey, err error) {
// We don't pass a `name` during decryption.
ftlRes, err := getKeyViaFTL(m, "" /*name*/, tlfID, membersType, keyGeneration)
if err != nil {
return nil, err
}
return ftlRes.ApplicationKeys[0], nil
}
func getKeyViaFTL(mctx libkb.MetaContext, name string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, keyGeneration int) (res keybase1.FastTeamLoadRes, err error) {
defer mctx.Trace(fmt.Sprintf("getKeyViaFTL(%s,%v,%d)", name, tlfID, keyGeneration), &err)()
var teamID keybase1.TeamID
switch membersType {
case chat1.ConversationMembersType_TEAM,
chat1.ConversationMembersType_IMPTEAMNATIVE:
teamID, err = keybase1.TeamIDFromString(tlfID.String())
if err != nil {
return res, err
}
case chat1.ConversationMembersType_IMPTEAMUPGRADE:
teamID, err = tlfIDToTeamID.Lookup(mctx, tlfID, mctx.G().API)
if err != nil {
return res, err
}
}
// The `name` parameter is optional since subteams can be renamed and
// messages with the old name must be successfully decrypted.
var teamNamePtr *keybase1.TeamName
if name != "" {
teamName, err := keybase1.TeamNameFromString(name)
if err != nil {
return res, err
}
teamNamePtr = &teamName
}
arg := keybase1.FastTeamLoadArg{
ID: teamID,
Public: false,
Applications: []keybase1.TeamApplication{keybase1.TeamApplication_CHAT},
AssertTeamName: teamNamePtr,
}
if keyGeneration > 0 {
arg.KeyGenerationsNeeded = []keybase1.PerTeamKeyGeneration{keybase1.PerTeamKeyGeneration(keyGeneration)}
} else {
arg.NeedLatestKey = true
}
res, err = mctx.G().GetFastTeamLoader().Load(mctx, arg)
if err != nil {
return res, err
}
n := len(res.ApplicationKeys)
if n != 1 {
return res, NewFTLError(fmt.Sprintf("wrong number of keys back from FTL; wanted 1, but got %d", n))
}
if keyGeneration > 0 && res.ApplicationKeys[0].KeyGeneration != keybase1.PerTeamKeyGeneration(keyGeneration) {
return res, NewFTLError(fmt.Sprintf("wrong generation back from FTL; wanted %d but got %d", keyGeneration, res.ApplicationKeys[0].KeyGeneration))
}
if res.ApplicationKeys[0].Application != keybase1.TeamApplication_CHAT {
return res, NewFTLError(fmt.Sprintf("wrong application; wanted %d but got %d", keybase1.TeamApplication_CHAT, res.ApplicationKeys[0].Application))
}
return res, nil
}
func loadTeamForDecryption(mctx libkb.MetaContext, loader *TeamLoader, name string, teamID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool,
keyGeneration int, kbfsEncrypted bool, botUID *gregor1.UID) (*teams.Team, error) {
var refreshers keybase1.TeamRefreshers
if !public && !teambot.CurrentUserIsBot(mctx, botUID) {
// Only need keys for private teams.
if !kbfsEncrypted {
refreshers.NeedApplicationsAtGenerations = map[keybase1.PerTeamKeyGeneration][]keybase1.TeamApplication{
keybase1.PerTeamKeyGeneration(keyGeneration): {keybase1.TeamApplication_CHAT},
}
} else {
refreshers.NeedKBFSKeyGeneration = keybase1.TeamKBFSKeyRefresher{
Generation: keyGeneration,
AppType: keybase1.TeamApplication_CHAT,
}
}
}
team, err := loader.loadTeam(mctx.Ctx(), teamID, name, membersType, public,
func(teamID keybase1.TeamID) keybase1.LoadTeamArg {
return keybase1.LoadTeamArg{
ID: teamID,
Public: public,
Refreshers: refreshers,
StaleOK: true,
}
})
if err != nil {
return nil, err
}
return team, nil
}
type TeamLoader struct {
libkb.Contextified
utils.DebugLabeler
}
func NewTeamLoader(g *libkb.GlobalContext) *TeamLoader {
return &TeamLoader{
Contextified: libkb.NewContextified(g),
DebugLabeler: utils.NewDebugLabeler(g, "TeamLoader", false),
}
}
func (t *TeamLoader) validKBFSTLFID(tlfID chat1.TLFID, team *teams.Team) bool {
tlfIDs := team.KBFSTLFIDs()
for _, id := range tlfIDs {
if tlfID.EqString(id) {
return true
}
}
return false
}
func (t *TeamLoader) validateImpTeamname(ctx context.Context, tlfName string, public bool,
team *teams.Team) error {
impTeamName, err := team.ImplicitTeamDisplayNameNoConflicts(ctx)
if err != nil {
return err
}
if impTeamName.String() != tlfName {
// Try resolving both the tlf name, and the team we loaded
resImpName, err := teams.ResolveImplicitTeamDisplayName(ctx, t.G(), impTeamName.String(), public)
if err != nil {
return err
}
resTlfName, err := teams.ResolveImplicitTeamDisplayName(ctx, t.G(), tlfName, public)
if err != nil {
return err
}
if resImpName.String() != resTlfName.String() {
return ImpteamBadteamError{
Msg: fmt.Sprintf("mismatch TLF name to implicit team name: %s != %s (%s != %s)",
impTeamName, tlfName, resImpName, resTlfName),
}
}
}
return nil
}
func (t *TeamLoader) loadTeam(ctx context.Context, tlfID chat1.TLFID,
tlfName string, membersType chat1.ConversationMembersType, public bool,
loadTeamArgOverride func(keybase1.TeamID) keybase1.LoadTeamArg) (team *teams.Team, err error) {
mctx := libkb.NewMetaContext(ctx, t.G())
defer t.Trace(ctx, &err, "loadTeam(%s,%s,%v)", tlfName, tlfID, membersType)()
// Set up load team argument construction, possibly controlled by the caller
ltarg := func(teamID keybase1.TeamID) keybase1.LoadTeamArg {
return keybase1.LoadTeamArg{
ID: teamID,
Public: public,
}
}
if loadTeamArgOverride != nil {
ltarg = loadTeamArgOverride
}
switch membersType {
case chat1.ConversationMembersType_TEAM,
chat1.ConversationMembersType_IMPTEAMNATIVE:
teamID, err := keybase1.TeamIDFromString(tlfID.String())
if err != nil {
return nil, err
}
return teams.Load(ctx, t.G(), ltarg(teamID))
case chat1.ConversationMembersType_IMPTEAMUPGRADE:
teamID, err := tlfIDToTeamID.Lookup(mctx, tlfID, t.G().API)
if err != nil {
return nil, err
}
loadAttempt := func(repoll bool) error {
arg := ltarg(teamID)
arg.ForceRepoll = arg.ForceRepoll || repoll
team, err = teams.Load(ctx, t.G(), arg)
if err != nil {
return err
}
if !t.validKBFSTLFID(tlfID, team) {
return ImpteamBadteamError{
Msg: fmt.Sprintf("TLF ID not found in team: %s", tlfID),
}
}
return nil
}
if err = loadAttempt(false); err != nil {
mctx.Debug("loadTeam: failed to load the team: err: %s", err)
if IsOfflineError(err) == OfflineErrorKindOnline {
// try again on bad team, might have had an old team cached
mctx.Debug("loadTeam: non-offline error, trying again: %s", err)
if err = loadAttempt(true); err != nil {
return nil, err
}
} else {
// generic error we bail out
return nil, err
}
}
// In upgraded implicit teams, make sure to check that tlfName matches
// team display name.
if err := t.validateImpTeamname(ctx, tlfName, public, team); err != nil {
return nil, err
}
return team, nil
}
return nil, fmt.Errorf("invalid impteam members type: %v", membersType)
}
type TeamsNameInfoSource struct {
globals.Contextified
utils.DebugLabeler
loader *TeamLoader
}
func NewTeamsNameInfoSource(g *globals.Context) *TeamsNameInfoSource {
return &TeamsNameInfoSource{
Contextified: globals.NewContextified(g),
DebugLabeler: utils.NewDebugLabeler(g.ExternalG(), "TeamsNameInfoSource", false),
loader: NewTeamLoader(g.ExternalG()),
}
}
func (t *TeamsNameInfoSource) LookupID(ctx context.Context, name string, public bool) (res types.NameInfo, err error) {
defer t.Trace(ctx, &err, fmt.Sprintf("LookupID(%s)", name))()
teamName, err := keybase1.TeamNameFromString(name)
if err != nil {
return res, err
}
id, err := teams.ResolveNameToID(ctx, t.G().ExternalG(), teamName)
if err != nil {
return res, err
}
tlfID, err := chat1.TeamIDToTLFID(id)
if err != nil {
return res, err
}
return types.NameInfo{
ID: tlfID,
CanonicalName: teamName.String(),
}, nil
}
func (t *TeamsNameInfoSource) LookupName(ctx context.Context, tlfID chat1.TLFID, public bool,
unverifiedTLFName string) (res types.NameInfo, err error) {
defer t.Trace(ctx, &err, fmt.Sprintf("LookupName(%s)", tlfID))()
teamID, err := keybase1.TeamIDFromString(tlfID.String())
if err != nil {
return res, err
}
m := libkb.NewMetaContext(ctx, t.G().ExternalG())
loadRes, err := m.G().GetFastTeamLoader().Load(m, keybase1.FastTeamLoadArg{
ID: teamID,
Public: teamID.IsPublic(),
})
if err != nil {
return res, err
}
return types.NameInfo{
ID: tlfID,
CanonicalName: loadRes.Name.String(),
}, nil
}
func (t *TeamsNameInfoSource) TeamBotSettings(ctx context.Context, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool) (map[keybase1.UserVersion]keybase1.TeamBotSettings, error) {
team, err := NewTeamLoader(t.G().ExternalG()).loadTeam(ctx, tlfID, tlfName, membersType, public, nil)
if err != nil {
return nil, err
}
return team.TeamBotSettings()
}
func (t *TeamsNameInfoSource) AllCryptKeys(ctx context.Context, name string, public bool) (res types.AllCryptKeys, err error) {
defer t.Trace(ctx, &err, "AllCryptKeys")()
return res, errors.New("unable to list all crypt keys on teams name info source")
}
func (t *TeamsNameInfoSource) EncryptionKey(ctx context.Context, name string, teamID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool, botUID *gregor1.UID) (res types.CryptKey, ni types.NameInfo, err error) {
defer t.Trace(ctx, &err,
fmt.Sprintf("EncryptionKey(%s,%s,%v,%v)", name, teamID, public, botUID))()
mctx := libkb.NewMetaContext(ctx, t.G().ExternalG())
if botUID == nil && !public {
return encryptionKeyViaFTL(mctx, name, teamID, membersType)
}
team, err := t.loader.loadTeam(ctx, teamID, name, membersType, public, nil)
if err != nil {
return res, ni, err
}
if res, err = getTeamCryptKey(mctx, team, team.Generation(), public, false, /* kbfsEncrypted */
botUID, true /* forEncryption */); err != nil {
return res, ni, err
}
tlfID, err := chat1.TeamIDToTLFID(team.ID)
if err != nil {
return res, ni, err
}
return res, types.NameInfo{
ID: tlfID,
CanonicalName: team.Name().String(),
}, nil
}
func (t *TeamsNameInfoSource) DecryptionKey(ctx context.Context, name string, teamID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool,
keyGeneration int, kbfsEncrypted bool, botUID *gregor1.UID) (res types.CryptKey, err error) {
defer t.Trace(ctx, &err,
fmt.Sprintf("DecryptionKey(%s,%s,%v,%d,%v,%v)", name, teamID, public,
keyGeneration, kbfsEncrypted, botUID))()
mctx := libkb.NewMetaContext(ctx, t.G().ExternalG())
if botUID == nil && !kbfsEncrypted && !public {
return decryptionKeyViaFTL(mctx, teamID, membersType, keyGeneration)
}
team, err := loadTeamForDecryption(mctx, t.loader, name, teamID, membersType, public,
keyGeneration, kbfsEncrypted, botUID)
if err != nil {
return res, err
}
return getTeamCryptKey(mctx, team, keybase1.PerTeamKeyGeneration(keyGeneration), public,
kbfsEncrypted, botUID, false /* forEncryption */)
}
func (t *TeamsNameInfoSource) EphemeralEncryptionKey(mctx libkb.MetaContext, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool, botUID *gregor1.UID) (ek types.EphemeralCryptKey, err error) {
if public {
return ek, NewPublicTeamEphemeralKeyError()
}
teamID, err := keybase1.TeamIDFromString(tlfID.String())
if err != nil {
return ek, err
}
if botUID != nil {
ek, _, err = t.G().GetEKLib().GetOrCreateLatestTeambotEK(mctx, teamID, *botUID)
} else {
ek, _, err = t.G().GetEKLib().GetOrCreateLatestTeamEK(mctx, teamID)
}
return ek, err
}
func (t *TeamsNameInfoSource) EphemeralDecryptionKey(mctx libkb.MetaContext, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool, botUID *gregor1.UID,
generation keybase1.EkGeneration, contentCtime *gregor1.Time) (ek types.EphemeralCryptKey, err error) {
if public {
return ek, NewPublicTeamEphemeralKeyError()
}
teamID, err := keybase1.TeamIDFromString(tlfID.String())
if err != nil {
return ek, err
}
if botUID != nil {
return t.G().GetEKLib().GetTeambotEK(mctx, teamID, *botUID, generation, contentCtime)
}
return t.G().GetEKLib().GetTeamEK(mctx, teamID, generation, contentCtime)
}
func (t *TeamsNameInfoSource) ShouldPairwiseMAC(ctx context.Context, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool) (bool, []keybase1.KID, error) {
return shouldPairwiseMAC(ctx, t.G(), t.loader, tlfName, tlfID, membersType, public)
}
func batchLoadEncryptionKIDs(ctx context.Context, g *libkb.GlobalContext, uvs []keybase1.UserVersion) (ret []keybase1.KID, err error) {
getArg := func(i int) *libkb.LoadUserArg {
if i >= len(uvs) {
return nil
}
tmp := libkb.NewLoadUserByUIDArg(ctx, g, uvs[i].Uid).WithPublicKeyOptional()
return &tmp
}
processResult := func(i int, upak *keybase1.UserPlusKeysV2AllIncarnations) error {
if upak == nil {
return nil
}
for _, key := range upak.Current.DeviceKeys {
// Include only unrevoked encryption keys.
if !key.Base.IsSibkey && key.Base.Revocation == nil {
ret = append(ret, key.Base.Kid)
}
}
return nil
}
err = g.GetUPAKLoader().Batcher(ctx, getArg, processResult, 0)
return ret, err
}
func shouldPairwiseMAC(ctx context.Context, g *globals.Context, loader *TeamLoader, tlfName string,
tlfID chat1.TLFID, membersType chat1.ConversationMembersType, public bool) (should bool, kids []keybase1.KID, err error) {
if public {
return false, nil, nil
}
defer g.CTrace(ctx, fmt.Sprintf("shouldPairwiseMAC teamID %s", tlfID.String()), &err)()
team, err := loader.loadTeam(ctx, tlfID, tlfName, membersType, public, nil)
if err != nil {
return false, nil, err
}
members, err := team.Members()
if err != nil {
return false, nil, err
}
memberUVs := members.AllUserVersions()
// For performance reasons, we don't try to pairwise MAC any messages in
// large teams.
if len(memberUVs) > libkb.MaxTeamMembersForPairwiseMAC {
return false, nil, nil
}
unrevokedKIDs, err := batchLoadEncryptionKIDs(ctx, g.GlobalContext, memberUVs)
if err != nil {
return false, nil, err
}
if len(unrevokedKIDs) > 10*libkb.MaxTeamMembersForPairwiseMAC {
// If someone on the team has a ton of devices, it could break our "100
// members" heuristic and lead to bad performance. We don't want to
// silently fall back to the non-repudiable mode, because that would
// create an opening for downgrade attacks, and we'd need to document
// this exception everywhere we talk about repudiability. But if this
// turns out to be a performance issue in practice, we might want to
// add some workaround. (For example, we could choose to omit
// recipients with an unreasonable number of devices.)
g.Log.CWarningf(ctx, "unreasonable number of devices (%d) in recipients list", len(unrevokedKIDs))
}
return true, unrevokedKIDs, nil
}
type ImplicitTeamsNameInfoSource struct {
globals.Contextified
utils.DebugLabeler
*NameIdentifier
loader *TeamLoader
membersType chat1.ConversationMembersType
}
func NewImplicitTeamsNameInfoSource(g *globals.Context, membersType chat1.ConversationMembersType) *ImplicitTeamsNameInfoSource {
return &ImplicitTeamsNameInfoSource{
Contextified: globals.NewContextified(g),
DebugLabeler: utils.NewDebugLabeler(g.ExternalG(), "ImplicitTeamsNameInfoSource", false),
NameIdentifier: NewNameIdentifier(g),
loader: NewTeamLoader(g.ExternalG()),
membersType: membersType,
}
}
func (t *ImplicitTeamsNameInfoSource) lookupUpgraded() bool {
return t.membersType == chat1.ConversationMembersType_IMPTEAMUPGRADE
}
// Identify participants of a conv.
// Returns as if all IDs succeeded if ctx is in TLFIdentifyBehavior_CHAT_GUI mode.
func (t *ImplicitTeamsNameInfoSource) identify(ctx context.Context, team *teams.Team, impTeamName keybase1.ImplicitTeamDisplayName) (err error) {
var names []string
names = append(names, impTeamName.Writers.KeybaseUsers...)
names = append(names, impTeamName.Readers.KeybaseUsers...)
// identify the members in the conversation
identBehavior, _, ok := globals.CtxIdentifyMode(ctx)
defer t.Trace(ctx, &err, fmt.Sprintf("identify(%s, %v)", impTeamName.String(), identBehavior))()
if !ok {
return errors.New("invalid context with no chat metadata")
}
cb := make(chan struct{})
go func(ctx context.Context) {
var idFails []keybase1.TLFIdentifyFailure
idFails, err = t.Identify(ctx, names, true,
func() keybase1.TLFID {
return keybase1.TLFID(team.ID.String())
},
func() keybase1.CanonicalTlfName {
return keybase1.CanonicalTlfName(impTeamName.String())
})
if err != nil || len(idFails) > 0 {
t.Debug(ctx, "identify failed err=%v fails=%+v", err, idFails)
}
// ignore idFails
close(cb)
}(globals.BackgroundChatCtx(ctx, t.G()))
switch identBehavior {
case keybase1.TLFIdentifyBehavior_CHAT_GUI:
// For GUI mode, let the full IDs roll in the background. We will be sending up
// tracker breaks to the UI out of band with whatever chat operation has invoked us here.
// CORE-10522 peg breaks will need to block sending for non-gui mode too.
// Peg breaks could count as track breaks for real Identify.
// That could nicely cover other applications besides chat. But the UI
// for fixing track breaks doesn't quite make sense for peg breaks.
// But check reset-pegs on the critical path.
for _, uv := range team.AllUserVersions(ctx) {
err = t.G().Pegboard.CheckUV(t.MetaContext(ctx), uv)
if err != nil {
// Turn peg failures into identify failures
t.Debug(ctx, "pegboard rejected %v: %v", uv, err)
return fmt.Errorf("A user may have reset: %v", err)
}
}
return nil
default:
<-cb
return err
}
}
func (t *ImplicitTeamsNameInfoSource) transformTeamDoesNotExist(ctx context.Context, err error, name string) error {
switch err.(type) {
case nil:
return nil
case teams.TeamDoesNotExistError:
return NewUnknownTLFNameError(name)
default:
t.Debug(ctx, "Lookup: error looking up the team: %v", err)
return err
}
}
func (t *ImplicitTeamsNameInfoSource) LookupID(ctx context.Context, name string, public bool) (res types.NameInfo, err error) {
defer t.Trace(ctx, &err, fmt.Sprintf("LookupID(%s)", name))()
// check if name is prefixed
if strings.HasPrefix(name, keybase1.ImplicitTeamPrefix) {
return t.lookupInternalName(ctx, name, public)
}
// This is on the critical path of sends, so don't force a repoll.
team, _, impTeamName, err := teams.LookupImplicitTeam(ctx, t.G().ExternalG(), name, public, teams.ImplicitTeamOptions{NoForceRepoll: true})
if err != nil {
return res, t.transformTeamDoesNotExist(ctx, err, name)
}
if !team.ID.IsRootTeam() {
panic(fmt.Sprintf("implicit team found via LookupImplicitTeam not root team: %s", team.ID))
}
var tlfID chat1.TLFID
if t.lookupUpgraded() {
tlfIDs := team.KBFSTLFIDs()
if len(tlfIDs) > 0 {
// We pull the first TLF ID here for this lookup since it has the highest chance of being
// correct. The upgrade wrote a bunch of TLF IDs in over the last months, but it is possible
// that KBFS can add more. All the upgrade TLFs should be ahead of them though, since if the
// upgrade process encounters a team with a TLF ID already in there, it will abort if they
// don't match.
tlfID = tlfIDs[0].ToBytes()
}
} else {
tlfID, err = chat1.TeamIDToTLFID(team.ID)
if err != nil {
return res, err
}
}
res = types.NameInfo{
ID: tlfID,
CanonicalName: impTeamName.String(),
}
return res, nil
}
func (t *ImplicitTeamsNameInfoSource) LookupName(ctx context.Context, tlfID chat1.TLFID, public bool,
unverifiedTLFName string) (res types.NameInfo, err error) {
defer t.Trace(ctx, &err, fmt.Sprintf("LookupName(%s)", tlfID))()
team, err := t.loader.loadTeam(ctx, tlfID, unverifiedTLFName, t.membersType, public, nil)
if err != nil {
return res, err
}
impTeamName, err := team.ImplicitTeamDisplayNameNoConflicts(ctx)
if err != nil {
return res, err
}
t.Debug(ctx, "LookupName: got name: %s", impTeamName.String())
members, err := team.Members()
if err != nil {
return res, err
}
var verifiedMembers []gregor1.UID
for _, member := range members.AllUIDs() {
verifiedMembers = append(verifiedMembers, gregor1.UID(member.ToBytes()))
}
return types.NameInfo{
ID: tlfID,
CanonicalName: impTeamName.String(),
VerifiedMembers: verifiedMembers,
}, nil
}
func (t *ImplicitTeamsNameInfoSource) TeamBotSettings(ctx context.Context, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool) (map[keybase1.UserVersion]keybase1.TeamBotSettings, error) {
team, err := NewTeamLoader(t.G().ExternalG()).loadTeam(ctx, tlfID, tlfName, membersType, public, nil)
if err != nil {
return nil, err
}
return team.TeamBotSettings()
}
func (t *ImplicitTeamsNameInfoSource) AllCryptKeys(ctx context.Context, name string, public bool) (res types.AllCryptKeys, err error) {
defer t.Trace(ctx, &err, "AllCryptKeys")()
return res, errors.New("unable to list all crypt keys in implicit team name info source")
}
func (t *ImplicitTeamsNameInfoSource) EncryptionKey(ctx context.Context, name string, teamID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool,
botUID *gregor1.UID) (res types.CryptKey, ni types.NameInfo, err error) {
defer t.Trace(ctx, &err,
fmt.Sprintf("EncryptionKey(%s,%s,%v,%v)", name, teamID, public, botUID))()
team, err := t.loader.loadTeam(ctx, teamID, name, membersType, public, nil)
if err != nil {
return res, ni, err
}
impTeamName, err := team.ImplicitTeamDisplayNameNoConflicts(ctx)
if err != nil {
return res, ni, err
}
if err := t.identify(ctx, team, impTeamName); err != nil {
return res, ni, err
}
mctx := libkb.NewMetaContext(ctx, t.G().ExternalG())
if res, err = getTeamCryptKey(mctx, team, team.Generation(), public, false, /* kbfsEncrypted */
botUID, true /* forEncryption */); err != nil {
return res, ni, err
}
return res, types.NameInfo{
ID: teamID,
CanonicalName: impTeamName.String(),
}, nil
}
func (t *ImplicitTeamsNameInfoSource) DecryptionKey(ctx context.Context, name string, teamID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool,
keyGeneration int, kbfsEncrypted bool, botUID *gregor1.UID) (res types.CryptKey, err error) {
defer t.Trace(ctx, &err,
fmt.Sprintf("DecryptionKey(%s,%s,%v,%d,%v,%v)", name, teamID, public, keyGeneration, kbfsEncrypted, botUID))()
mctx := libkb.NewMetaContext(ctx, t.G().ExternalG())
if botUID == nil && !kbfsEncrypted && !public {
return decryptionKeyViaFTL(mctx, teamID, membersType, keyGeneration)
}
team, err := loadTeamForDecryption(mctx, t.loader, name, teamID, membersType, public,
keyGeneration, kbfsEncrypted, botUID)
if err != nil {
return res, err
}
impTeamName, err := team.ImplicitTeamDisplayNameNoConflicts(ctx)
if err != nil {
return res, err
}
if err := t.identify(ctx, team, impTeamName); err != nil {
return res, err
}
return getTeamCryptKey(mctx, team, keybase1.PerTeamKeyGeneration(keyGeneration), public,
kbfsEncrypted, botUID, false /* forEncryption */)
}
func (t *ImplicitTeamsNameInfoSource) ephemeralLoadAndIdentify(ctx context.Context, encrypting bool, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool) (teamID keybase1.TeamID, err error) {
if public {
return teamID, NewPublicTeamEphemeralKeyError()
}
team, err := t.loader.loadTeam(ctx, tlfID, tlfName, membersType, public, nil)
if err != nil {
return teamID, err
}
impTeamName, err := team.ImplicitTeamDisplayNameNoConflicts(ctx)
if err != nil {
return teamID, err
}
if err := t.identify(ctx, team, impTeamName); err != nil {
return teamID, err
}
return team.ID, nil
}
func (t *ImplicitTeamsNameInfoSource) EphemeralEncryptionKey(mctx libkb.MetaContext, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool, botUID *gregor1.UID) (ek types.EphemeralCryptKey, err error) {
teamID, err := t.ephemeralLoadAndIdentify(mctx.Ctx(), true, tlfName, tlfID, membersType, public)
if err != nil {
return ek, err
}
if botUID != nil {
ek, _, err = t.G().GetEKLib().GetOrCreateLatestTeambotEK(mctx, teamID, *botUID)
} else {
ek, _, err = t.G().GetEKLib().GetOrCreateLatestTeamEK(mctx, teamID)
}
return ek, err
}
func (t *ImplicitTeamsNameInfoSource) EphemeralDecryptionKey(mctx libkb.MetaContext, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool, botUID *gregor1.UID,
generation keybase1.EkGeneration, contentCtime *gregor1.Time) (teamEK types.EphemeralCryptKey, err error) {
teamID, err := t.ephemeralLoadAndIdentify(mctx.Ctx(), false, tlfName, tlfID, membersType, public)
if err != nil {
return teamEK, err
}
if botUID != nil {
return t.G().GetEKLib().GetTeambotEK(mctx, teamID, *botUID, generation, contentCtime)
}
return t.G().GetEKLib().GetTeamEK(mctx, teamID, generation, contentCtime)
}
func (t *ImplicitTeamsNameInfoSource) ShouldPairwiseMAC(ctx context.Context, tlfName string, tlfID chat1.TLFID,
membersType chat1.ConversationMembersType, public bool) (bool, []keybase1.KID, error) {
return shouldPairwiseMAC(ctx, t.G(), t.loader, tlfName, tlfID, membersType, public)
}
func (t *ImplicitTeamsNameInfoSource) lookupInternalName(ctx context.Context, name string, public bool) (res types.NameInfo, err error) {
team, err := teams.Load(ctx, t.G().ExternalG(), keybase1.LoadTeamArg{
Name: name,
Public: public,
})
if err != nil {
return res, err
}
res.CanonicalName = team.Name().String()
if res.ID, err = chat1.TeamIDToTLFID(team.ID); err != nil {
return res, err
}
return res, nil
}
type tlfIDToTeamIDMap struct {
storage *lru.Cache
}
func newTlfIDToTeamIDMap() *tlfIDToTeamIDMap {
s, _ := lru.New(10000)
return &tlfIDToTeamIDMap{
storage: s,
}
}
func TLFIDToTeamID(tlfID chat1.TLFID) (keybase1.TeamID, error) {
return keybase1.TeamIDFromString(tlfID.String())
}
// Lookup gives the server trust mapping between tlfID and teamID
func (t *tlfIDToTeamIDMap) Lookup(mctx libkb.MetaContext, tlfID chat1.TLFID, api libkb.API) (res keybase1.TeamID, err error) {
if iTeamID, ok := t.storage.Get(tlfID.String()); ok {
return iTeamID.(keybase1.TeamID), nil
}
arg := libkb.NewAPIArg("team/id")
arg.Args = libkb.NewHTTPArgs()
arg.Args.Add("tlf_id", libkb.S{Val: tlfID.String()})
arg.SessionType = libkb.APISessionTypeREQUIRED
apiRes, err := api.Get(mctx, arg)
if err != nil {
return res, err
}
st, err := apiRes.Body.AtKey("team_id").GetString()
if err != nil {
return res, err
}
teamID, err := keybase1.TeamIDFromString(st)
if err != nil {
return res, err
}
t.storage.Add(tlfID.String(), teamID)
return teamID, nil
}
func (t *tlfIDToTeamIDMap) LookupTLFID(mctx libkb.MetaContext, teamID keybase1.TeamID, api libkb.API) (res chat1.TLFID, err error) {
if iTLFID, ok := t.storage.Get(teamID.String()); ok {
return iTLFID.(chat1.TLFID), nil
}
arg := libkb.NewAPIArg("team/tlfid")
arg.Args = libkb.NewHTTPArgs()
arg.Args.Add("team_id", libkb.S{Val: teamID.String()})
arg.SessionType = libkb.APISessionTypeREQUIRED
apiRes, err := api.Get(mctx, arg)
if err != nil {
return res, err
}
st, err := apiRes.Body.AtKey("tlf_id").GetString()
if err != nil {
return res, err
}
tlfID, err := chat1.MakeTLFID(st)
if err != nil {
return res, err
}
t.storage.Add(teamID.String(), tlfID)
return tlfID, nil
}
var tlfIDToTeamID = newTlfIDToTeamIDMap()