/
get.go
347 lines (307 loc) · 11.2 KB
/
get.go
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package git
import (
"context"
"encoding/base64"
"fmt"
"sort"
"sync"
"time"
"github.com/adamwalz/keybase-client/go/libkb"
"github.com/adamwalz/keybase-client/go/protocol/keybase1"
"github.com/adamwalz/keybase-client/go/teams"
"github.com/keybase/go-codec/codec"
"golang.org/x/sync/errgroup"
)
type ServerResponseRepo struct {
TeamID keybase1.TeamID `json:"team_id"`
RepoID keybase1.RepoID `json:"repo_id"`
CTime time.Time `json:"ctime"`
MTime time.Time `json:"mtime"`
EncryptedMetadata string `json:"encrypted_metadata"`
EncryptionVersion int `json:"encryption_version"`
Nonce string `json:"nonce"`
KeyGeneration keybase1.PerTeamKeyGeneration `json:"key_generation"`
LastModifyingUID keybase1.UID `json:"last_writer_uid"`
LastModifyingDeviceID keybase1.DeviceID `json:"last_writer_device_id"`
ChatConvID string `json:"chat_conv_id"`
ChatDisabled bool `json:"chat_disabled"`
IsImplicit bool `json:"is_implicit"`
Role keybase1.TeamRole `json:"role"`
}
type ServerResponse struct {
Repos []ServerResponseRepo `json:"repos"`
Status libkb.AppStatus `json:"status"`
}
type ByRepoMtime []keybase1.GitRepoResult
func (c ByRepoMtime) Len() int { return len(c) }
func (c ByRepoMtime) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c ByRepoMtime) Less(i, j int) bool {
res1, err1 := c[i].GetIfOk()
res2, err2 := c[j].GetIfOk()
if err1 != nil || err2 != nil {
return false
}
return res1.ServerMetadata.Mtime < res2.ServerMetadata.Mtime
}
var _ libkb.APIResponseWrapper = (*ServerResponse)(nil)
// For GetDecode.
func (r *ServerResponse) GetAppStatus() *libkb.AppStatus {
return &r.Status
}
func formatRepoURL(folder keybase1.FolderHandle, repoName string) string {
return "keybase://" + folder.ToString() + "/" + repoName
}
// The GUI needs a way to refer to repos
func formatUniqueRepoID(teamID keybase1.TeamID, repoID keybase1.RepoID) string {
return string(teamID) + "_" + string(repoID)
}
// Implicit teams need to be converted back into the folder that matches their
// display name. Regular teams become a regular team folder.
func folderFromTeamID(ctx context.Context, g *libkb.GlobalContext, teamID keybase1.TeamID, isImplicit bool) (keybase1.FolderHandle, error) {
if isImplicit {
return folderFromTeamIDImplicit(ctx, g, teamID)
}
return folderFromTeamIDNamed(ctx, g, teamID)
}
func folderFromTeamIDNamed(ctx context.Context, g *libkb.GlobalContext, teamID keybase1.TeamID) (keybase1.FolderHandle, error) {
name, err := teams.ResolveIDToName(ctx, g, teamID)
if err != nil {
return keybase1.FolderHandle{}, err
}
return keybase1.FolderHandle{
Name: name.String(),
FolderType: keybase1.FolderType_TEAM,
}, nil
}
// folderFromTeamIDImplicit converts from a teamID for implicit teams
func folderFromTeamIDImplicit(ctx context.Context, g *libkb.GlobalContext, teamID keybase1.TeamID) (keybase1.FolderHandle, error) {
team, err := teams.Load(ctx, g, keybase1.LoadTeamArg{
ID: teamID,
Public: teamID.IsPublic(),
})
if err != nil {
return keybase1.FolderHandle{}, err
}
if !team.IsImplicit() {
return keybase1.FolderHandle{}, fmt.Errorf("Expected an implicit team, but team load said otherwise (%s)", teamID)
}
// TODO: This function doesn't currently support conflict info.
name, err := team.ImplicitTeamDisplayNameString(ctx)
if err != nil {
return keybase1.FolderHandle{}, err
}
var folderType keybase1.FolderType
if team.IsPublic() {
folderType = keybase1.FolderType_PUBLIC
} else {
folderType = keybase1.FolderType_PRIVATE
}
return keybase1.FolderHandle{
Name: name,
FolderType: folderType,
}, nil
}
// If folder is nil, get for all folders.
func getMetadataInner(ctx context.Context, g *libkb.GlobalContext, folder *keybase1.FolderHandle) ([]keybase1.GitRepoResult, error) {
mctx := libkb.NewMetaContext(ctx, g)
teamer := NewTeamer(g)
apiArg := libkb.APIArg{
Endpoint: "kbfs/git/team/get",
SessionType: libkb.APISessionTypeREQUIRED,
Args: libkb.HTTPArgs{}, // a limit parameter exists, default 100, and we don't currently set it
}
// The team_id parameter is optional. Add it in if the caller supplied it.
if folder != nil {
teamIDVis, err := teamer.LookupOrCreate(ctx, *folder)
if err != nil {
return nil, err
}
apiArg.Args["team_id"] = libkb.S{Val: string(teamIDVis.TeamID)}
}
var serverResponse ServerResponse
err := mctx.G().GetAPI().GetDecode(mctx, apiArg, &serverResponse)
if err != nil {
return nil, err
}
// Unbox the repos in parallel
repoCh := make(chan ServerResponseRepo)
eg, ctx := errgroup.WithContext(ctx)
eg.Go(func() error {
defer close(repoCh)
for _, responseRepo := range serverResponse.Repos {
select {
case repoCh <- responseRepo:
case <-ctx.Done():
return ctx.Err()
}
}
return nil
})
// Initializing the results list to non-nil means that we end up seeing
// "[]" instead of "null" in the final JSON output on the CLI, which is
// preferable.
resultList := []keybase1.GitRepoResult{}
var resLock sync.Mutex
var firstErr error
var anySuccess bool
numUnboxThreads := 2
for i := 0; i < numUnboxThreads; i++ {
eg.Go(func() error {
for responseRepo := range repoCh {
info, skip, err := getMetadataInnerSingle(ctx, g, folder, responseRepo)
resLock.Lock()
if err != nil {
if firstErr == nil {
firstErr = err
}
mctx.Debug("git.getMetadataInner error (team:%v, repo:%v): %v", responseRepo.TeamID, responseRepo.RepoID, err)
resultList = append(resultList, keybase1.NewGitRepoResultWithErr(err.Error()))
} else if !skip {
anySuccess = true
resultList = append(resultList, keybase1.NewGitRepoResultWithOk(*info))
}
resLock.Unlock()
}
return nil
})
}
if err := eg.Wait(); err != nil {
return resultList, err
}
sort.Sort(ByRepoMtime(resultList))
// If there were no repos, return ok
// If all repos failed, return the first error (something is probably wrong that's not repo-specific)
// If no repos failed, return ok
if len(resultList) == 0 {
return resultList, nil
}
if !anySuccess {
return resultList, firstErr
}
return resultList, nil
}
// if skip is true the other return values are nil
func getMetadataInnerSingle(ctx context.Context, g *libkb.GlobalContext,
folder *keybase1.FolderHandle, responseRepo ServerResponseRepo) (info *keybase1.GitRepoInfo, skip bool, err error) {
cryptoer := NewCrypto(g)
// If the folder was passed in, use it. Otherwise, load the team to
// figure it out.
var repoFolder keybase1.FolderHandle
if folder != nil {
repoFolder = *folder
} else {
repoFolder, err = folderFromTeamID(ctx, g, responseRepo.TeamID, responseRepo.IsImplicit)
if err != nil {
return nil, false, err
}
// Currently we want to pretend that multi-user personal repos
// (/keybase/{private,public}/chris,max/...) don't exist. Short circuit here
// to keep those out of the results list.
if repoFolder.Name != g.Env.GetUsername().String() &&
(repoFolder.FolderType == keybase1.FolderType_PRIVATE || repoFolder.FolderType == keybase1.FolderType_PUBLIC) {
return nil, true, nil
}
}
teamIDVis := keybase1.TeamIDWithVisibility{
TeamID: responseRepo.TeamID,
}
if repoFolder.FolderType != keybase1.FolderType_PUBLIC {
teamIDVis.Visibility = keybase1.TLFVisibility_PRIVATE
} else {
teamIDVis.Visibility = keybase1.TLFVisibility_PUBLIC
}
ciphertext, err := base64.StdEncoding.DecodeString(responseRepo.EncryptedMetadata)
if err != nil {
return nil, false, err
}
nonceSlice, err := base64.StdEncoding.DecodeString(responseRepo.Nonce)
if err != nil {
return nil, false, err
}
if len(nonceSlice) != len(keybase1.BoxNonce{}) {
return nil, false, fmt.Errorf("expected a nonce of length %d, found %d", len(keybase1.BoxNonce{}), len(nonceSlice))
}
var nonce keybase1.BoxNonce
copy(nonce[:], nonceSlice)
encryptedMetadata := keybase1.EncryptedGitMetadata{
V: responseRepo.EncryptionVersion,
E: ciphertext,
N: nonce,
Gen: responseRepo.KeyGeneration,
}
msgpackPlaintext, err := cryptoer.Unbox(ctx, teamIDVis, &encryptedMetadata)
if err != nil {
return nil, false, fmt.Errorf("repo tid:%v visibility:%s: %v", teamIDVis.TeamID, teamIDVis.Visibility, err)
}
var localMetadataVersioned keybase1.GitLocalMetadataVersioned
mh := codec.MsgpackHandle{WriteExt: true}
dec := codec.NewDecoderBytes(msgpackPlaintext, &mh)
err = dec.Decode(&localMetadataVersioned)
if err != nil {
return nil, false, err
}
// Translate back from GitLocalMetadataVersioned to the decoupled type
// that we use for local RPC.
version, err := localMetadataVersioned.Version()
if err != nil {
return nil, false, err
}
var localMetadata keybase1.GitLocalMetadata
switch version {
case keybase1.GitLocalMetadataVersion_V1:
localMetadata = keybase1.GitLocalMetadata{
RepoName: localMetadataVersioned.V1().RepoName,
}
default:
return nil, false, fmt.Errorf("unrecognized variant of GitLocalMetadataVersioned: %#v", version)
}
// Load UPAKs to get the last writer username and device name.
lastWriterUPAK, _, err := g.GetUPAKLoader().LoadV2(libkb.NewLoadUserArgWithContext(ctx, g).
WithUID(responseRepo.LastModifyingUID).
WithPublicKeyOptional())
if err != nil {
return nil, false, err
}
var deviceName string
for _, upk := range append([]keybase1.UserPlusKeysV2{lastWriterUPAK.Current}, lastWriterUPAK.PastIncarnations...) {
for _, deviceKey := range upk.DeviceKeys {
if deviceKey.DeviceID.Eq(responseRepo.LastModifyingDeviceID) {
deviceName = deviceKey.DeviceDescription
break
}
}
}
if deviceName == "" {
return nil, false, fmt.Errorf("can't find device name for %s's device ID %s", lastWriterUPAK.Current.Username, responseRepo.LastModifyingDeviceID)
}
var settings *keybase1.GitTeamRepoSettings
if repoFolder.FolderType == keybase1.FolderType_TEAM {
pset, err := convertTeamRepoSettings(ctx, g, responseRepo.TeamID, responseRepo.ChatConvID, responseRepo.ChatDisabled)
if err != nil {
return nil, false, err
}
settings = &pset
}
return &keybase1.GitRepoInfo{
Folder: repoFolder,
RepoID: responseRepo.RepoID,
RepoUrl: formatRepoURL(repoFolder, string(localMetadata.RepoName)),
GlobalUniqueID: formatUniqueRepoID(responseRepo.TeamID, responseRepo.RepoID),
CanDelete: responseRepo.Role.IsAdminOrAbove(),
LocalMetadata: localMetadata,
ServerMetadata: keybase1.GitServerMetadata{
Ctime: keybase1.ToTime(responseRepo.CTime),
Mtime: keybase1.ToTime(responseRepo.MTime),
LastModifyingUsername: lastWriterUPAK.Current.Username,
LastModifyingDeviceID: responseRepo.LastModifyingDeviceID,
LastModifyingDeviceName: deviceName,
},
TeamRepoSettings: settings,
}, false, nil
}
func GetMetadata(ctx context.Context, g *libkb.GlobalContext, folder keybase1.FolderHandle) ([]keybase1.GitRepoResult, error) {
return getMetadataInner(ctx, g, &folder)
}
func GetAllMetadata(ctx context.Context, g *libkb.GlobalContext) ([]keybase1.GitRepoResult, error) {
return getMetadataInner(ctx, g, nil)
}